CN117445343A - Metal and plastic co-extrusion molding equipment and molding method - Google Patents
Metal and plastic co-extrusion molding equipment and molding method Download PDFInfo
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- CN117445343A CN117445343A CN202310564164.6A CN202310564164A CN117445343A CN 117445343 A CN117445343 A CN 117445343A CN 202310564164 A CN202310564164 A CN 202310564164A CN 117445343 A CN117445343 A CN 117445343A
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- strip
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- 238000001125 extrusion Methods 0.000 title claims abstract description 175
- 229920003023 plastic Polymers 0.000 title claims abstract description 173
- 239000004033 plastic Substances 0.000 title claims abstract description 161
- 239000002184 metal Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000000465 moulding Methods 0.000 title claims description 13
- 238000001816 cooling Methods 0.000 claims abstract description 123
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 112
- 239000012768 molten material Substances 0.000 claims abstract description 28
- 239000007888 film coating Substances 0.000 claims abstract description 23
- 238000009501 film coating Methods 0.000 claims abstract description 23
- 230000001681 protective effect Effects 0.000 claims abstract description 18
- 238000005520 cutting process Methods 0.000 claims description 68
- 239000000463 material Substances 0.000 claims description 46
- 239000002245 particle Substances 0.000 claims description 20
- 230000000149 penetrating effect Effects 0.000 claims description 15
- 239000007769 metal material Substances 0.000 claims description 13
- 238000007790 scraping Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000007493 shaping process Methods 0.000 claims description 9
- 238000001746 injection moulding Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 3
- 238000004553 extrusion of metal Methods 0.000 claims 1
- 239000000725 suspension Substances 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910001092 metal group alloy Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 210000002489 tectorial membrane Anatomy 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/265—Support structures or bases for apparatus, e.g. frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
- B29C48/2883—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules of preformed parts, e.g. inserts fed and transported generally uninfluenced through the extruder or inserts fed directly to the die
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/355—Conveyors for extruded articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/802—Heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/885—External treatment, e.g. by using air rings for cooling tubular films
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a metal and plastic co-extrusion forming device and a forming method, which belong to the technical field of steel-plastic co-extrusion forming devices, wherein the metal and plastic co-extrusion forming device comprises an unreeling mechanism, one side of the unreeling mechanism is provided with a co-extrusion forming mechanism, the rear end of the top of the co-extrusion forming mechanism is provided with a first extrusion mechanism, one side of the co-extrusion forming mechanism far away from the unreeling mechanism is provided with a film-coating forming mechanism, and an air cooling mechanism is arranged between the co-extrusion forming mechanism and the film-coating forming mechanism; and a water cooling mechanism is arranged at one side of the film coating forming mechanism, which is far away from the co-extrusion forming mechanism. According to the invention, through designing the continuous co-extrusion forming mechanism and the film coating forming mechanism, after the molten material is extruded by the film coating forming mechanism, the molten material can be adhered to the outer surface of the strip of the steel-plastic product and is cooled and formed under the rapid cooling of the cooling cavity, so that the transparent plastic protective film with the thickness of 0.1mm is formed, and the surface of the steel-plastic product can be well protected.
Description
Technical Field
The invention belongs to the technical field of steel-plastic co-extrusion equipment, and particularly relates to metal and plastic co-extrusion molding equipment and a molding method.
Background
The steel-plastic co-extrusion is a one-step forming technology capable of realizing synchronous extrusion forming of metal and plastic, and steel-plastic co-extrusion equipment can be used for producing steel-plastic products such as pipes, plates, sheets and the like according to actual requirements. The steel-plastic co-extrusion equipment generally extrudes molten materials with different rheological behaviors or different colors from one or more extruders to the same forming die, the molten materials flow in respective flow channels in the forming die, then are converged and extruded at a die, are combined with metal materials in the forming die, and finally are cooled and shaped in a shaping sleeve, so that an integrated steel-plastic profile is formed.
The steel-plastic composite product has better excellent performance and attractive appearance, the application range is wider and wider, so that the steel-plastic co-extrusion process in the current market is also rapidly developed, various different types of steel-plastic co-extrusion equipment are available in the current market, but the structural design of most of the current steel-plastic co-extrusion equipment has certain defects, the current steel-plastic co-extrusion equipment can process the steel-plastic composite product, but the formed steel-plastic composite product is easy to cause scratch on the surfaces of metal profiles and plastic profiles in the processes of subsequent cooling, extrusion traction and the like, and the product is easier to scratch due to lack of protection in the subsequent processing, transportation and carrying processes, so that the overall quality of the product is affected.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a metal and plastic co-extrusion molding device and a molding method.
The technical scheme adopted for solving the technical problems is as follows: the metal and plastic co-extrusion molding equipment comprises an unreeling mechanism, wherein a co-extrusion molding mechanism is arranged on one side of the unreeling mechanism, a first extrusion mechanism is arranged at the rear end of the top of the co-extrusion molding mechanism, a film covering molding mechanism is arranged on one side of the co-extrusion molding mechanism away from the unreeling mechanism, and a second extrusion mechanism is arranged at the rear end of the top of the film covering molding mechanism;
the first extrusion mechanism and the second extrusion mechanism have the same structure, and an air cooling mechanism is arranged between the co-extrusion forming mechanism and the film covering forming mechanism;
a water cooling mechanism is arranged at one side of the film coating forming mechanism far away from the co-extrusion forming mechanism, and a traction mechanism is arranged at one side of the water cooling mechanism far away from the film coating forming mechanism;
one side of the traction mechanism, which is far away from the water cooling mechanism, is provided with a fixed-length cutting mechanism.
Further, unreeling mechanism includes the support base, the rear end fixedly connected with support frame at support base top, the support frame front end rotates and is connected with rotatory roller, rotatory roller's outer wall grafting has the material to roll up, support base top one side fixedly connected with mount, the top fixedly connected with of mount is rolled up corresponding uide bushing with the material.
Through above-mentioned technical scheme, be used for twining into the metal alloy of a roll on the material book, including metal filament and slice metal strip etc. after the material book is installed on rotatory roller, the metal alloy is in equipment continuous traction in-process, and the material book also can be constantly rotatory on rotatory roller to slowly release winding metal alloy.
Further, the co-extrusion forming mechanism comprises a first supporting table, a first lower die holder is arranged at the front end of the top of the first supporting table, a first upper die holder is arranged at the top of the first lower die holder, a first feeding hole is formed in one side between the first lower die holder and the first upper die holder, a forming cavity is formed between the first lower die holder and the first upper die holder, a metal material guide channel corresponding to the first feeding hole is formed in one side of the forming cavity, a first feeding channel communicated with the forming cavity is arranged in the first lower die holder, a first connecting seat is fixedly connected to the opening of the rear end of the first feeding channel, a first cooling cavity is formed in one side, away from the first feeding hole, of the centers of the first lower die holder and the first upper die holder, and a first water connecting hole communicated with the corresponding first cooling cavity is formed in one side of the front and rear end outer surfaces of the first lower die holder and the first upper die holder.
Through the technical scheme, the two first water receiving ports at the front end can be connected with the water inlet pipe, the two first water receiving ports at the rear end can be connected with the water outlet pipe, the water inlet pipe can continuously supply cold water to the two first cooling cavities, water flow after heat exchange can be discharged through the water outlet pipe, the metal section bar wound on the material roll can penetrate through the forming cavity through the metal material guide channel after being inserted into the first feed port, after the molten material enters the forming cavity through the first feed channel, the molten material continuously extruded into the forming cavity can be compounded with the metal section bar in the forming cavity, integral injection molding is realized, the steel-plastic product strip after co-extrusion molding continuously moves along the forming cavity, and cooling and forming are carried out under the rapid cooling of the two first cooling cavities.
Further, the first extrusion mechanism comprises an extrusion barrel arranged above the first supporting table, the front end of the extrusion barrel is fixedly connected with an extrusion nozzle, the front end of the extrusion nozzle is connected with the first connecting seat, a spiral extrusion rod is rotationally connected with the extrusion barrel, a heating coil is arranged in the center of the inner wall of the extrusion barrel, an extrusion motor connected with the spiral extrusion rod is arranged at the rear end of the top of the first supporting table, and a feeding hopper communicated with the extrusion barrel is fixedly connected with the rear end of the top of the extrusion barrel.
Through the technical scheme, after plastic particles are poured into the feeding hopper, the plastic particles in the feeding hopper can enter the extrusion barrel, then the spiral extrusion rod is driven by the extrusion motor to rotate, the plastic particles continuously move in the extrusion barrel under the pushing of the spiral extrusion rod, the heating coil arranged in the center of the inner wall of the extrusion barrel can melt the plastic particles into molten materials, and then the molten materials are extruded through the extrusion nozzle under the pushing of the spiral extrusion rod and enter the first feeding channel.
Further, tectorial membrane forming mechanism includes the second brace table, second brace table top front end is provided with the second die holder, the second upper die holder is installed at the top of second die holder, one side between second die holder and the second upper die holder is provided with the second feed inlet, the center between second die holder and the second upper die holder is equipped with directional passageway, the directional passageway center is close to one side of second feed inlet and installs the protection film extrusion module, the material through hole has been seted up at the center of protection film extrusion module, the branch material clearance has been seted up to the inner wall week side of protection film extrusion module, the extrusion slit that link up mutually with branch material clearance has been seted up to one side of material through hole inner wall, the feed through hole that link up mutually with branch material clearance has been seted up at protection film extrusion module bottom center, the second feed through hole that link up mutually with the feed through hole has been seted up to one side that the second feed through hole is close to the second die holder center, second feed through hole rear end opening fixedly connected with second connecting seat, the front end of second extrusion mechanism is connected with second die holder and second cooling die holder and second side, the cooling chamber that all has the surface that the second die holder is kept away from mutually is kept away from to the second upper die holder.
Through the technical scheme, the two second water receiving ports at the front end can be connected with the water inlet pipe, the two second water receiving ports at the rear end can be connected with the water outlet pipe, the water inlet pipe can continuously supply cold water to the two second cooling cavities, water flow after heat exchange can be discharged through the water outlet pipe, steel plastic product strips after air cooling can penetrate into the directional channel through the second feed inlet, transparent plastic molten materials extruded by the second extruding mechanism can enter the second feed channel, then the molten materials enter the distributing gap through the feed through hole, finally are extruded through the extruding slit and are attached to the outer surfaces of the moving steel plastic product strips, and the transparent plastic protective film with the thickness of 0.1mm is formed by cooling and forming under the rapid cooling of the two second cooling cavities.
Further, the air cooling mechanism comprises a supporting plate, the supporting plate is fixed between the first supporting table and the second supporting table, a mounting bracket is arranged in the center of the top of the supporting plate, and an air cooling fan is arranged on the mounting bracket.
Through the technical scheme, the formed steel-plastic product strip is further air-cooled by the air-cooled fan on the mounting bracket after penetrating out of the forming cavity, so that cooling and shaping of the steel-plastic product strip are accelerated.
Further, the water cooling mechanism comprises a third supporting table, a water cooling groove is formed in the top of the third supporting table, a plurality of limiting rods are fixedly connected between the front end and the rear end of the inner wall of the water cooling groove, a notch is formed in one side, close to the second supporting table, of the top of the water cooling groove, a first limiting roller frame and a second limiting roller frame are respectively arranged on two sides of the top of the third supporting table, the first limiting roller frame is located one side, close to the notch, of the top of the third supporting table, a water scraping frame is fixedly connected to the edge, close to one end of the second limiting roller frame, of the top of the third supporting table, and a water scraping sponge is arranged on the water scraping frame.
Through the technical scheme, after the strip of the steel-plastic product after the film coating passes through the directional channel, the strip of the steel-plastic product penetrates into the water cooling tank through the first limiting roller frame, cold water in the water cooling tank is used for carrying out cooling shaping on the strip of the steel-plastic product in one step, a plurality of limiting rods are fixedly connected between the front end and the rear end of the inner wall of the water cooling tank, the strip of the steel-plastic product can be ensured to be positioned below the water surface, cooling efficiency is ensured, after the strip of the steel-plastic product after water cooling penetrates out of the water cooling tank, the water drops on the outer surface of the strip of the steel-plastic product are scraped by the water scraping sponge through the second limiting roller frame, round holes are respectively formed in the bottoms of the two sides of the rear end of the water cooling tank, the water inlet pipe is respectively used for connecting the water inlet pipe and the water outlet pipe, the cold water is continuously injected into the water cooling tank, and the water outlet pipe is used for discharging water flow after heat exchange, so that lower water temperature in the water cooling tank is ensured, and cooling efficiency is further ensured.
Further, the traction mechanism comprises a fourth supporting table, a traction frame is fixedly connected to the top of the fourth supporting table, a driving roll shaft is rotatably connected to the top and the bottom of one side of the front end of the traction frame, an auxiliary roll shaft is rotatably connected to the top and the bottom of the other side of the front end of the traction frame, traction chain belts are mounted between the driving roll shaft and the auxiliary roll shaft, two traction motors connected with the corresponding driving roll shafts are mounted on one side of the rear end of the traction frame, and a control panel corresponding to the two traction motors is mounted on the top of the front end center of the fourth supporting table.
Through the technical scheme, the steel-plastic product strip penetrates through the wiper sponge and then enters between the two traction chain belts, after the steel-plastic product strip penetrates between the two traction chain belts, the two traction motors are started, and the directions of the two traction motors are opposite, so that the two traction chain belts can be driven by the two groups of driving roll shafts and the auxiliary roll shafts to synchronously move, and at the moment, the two traction chain belts extrude and draw the steel-plastic product strip to move towards the direction of the fixed-length cutting mechanism.
Further, fixed length cuts mechanism includes fifth brace table, fifth brace table top one side fixedly connected with cuts the seat, cut and offered the blank hole that the level runs through in the seat, cut one side fixedly connected with cylinder block that traction mechanism was kept away from to the seat top, the cylinder block top is installed and is cut the cylinder, the bottom fixedly connected with that cuts the cylinder piston rod runs through the corresponding cutting knife in blank hole, fifth brace table top fixedly connected with support riser, the front end center rotation of support riser is connected with the revolving stage, support riser front end bottom both sides all rotate and are connected with flexible cylinder, two flexible cylinder piston rod's front end all rotates with the revolving stage to be connected, a plurality of suspension brackets are installed at the support riser top, a plurality of the guide limiting plate that the slope set up is all installed to suspension bracket's bottom, the guide plate that the slope set up is kept away from to the support riser front end one side that cuts the seat, the support riser front end installs the corresponding photoelectric switch of photoelectric switch, and the bottom of the seat that just supports the seat is placed with the revolving stage, the top is placed to receive the revolving stage, the top that the revolving stage is placed.
Through the technical scheme, after the steel-plastic product strip penetrates through the blanking hole, the steel-plastic product strip continuously moves under the traction of the traction mechanism, so that the end part of the steel-plastic product strip continuously moves on the rotary table until the end part of the steel-plastic product strip reaches the sensing area of the front end of the photoelectric switch and is sensed and identified by the photoelectric switch, a control signal is immediately transmitted to the cutting cylinder after the photoelectric switch senses the steel-plastic product strip, the cutting cylinder drives the cutting knife to quickly complete cutting operation, the cutting knife quickly resets after cutting the steel-plastic product strip, the cut steel-plastic product strip is supported on the rotary table, at the moment, the two telescopic cylinders automatically shrink, so that the rotary table is driven to incline towards the lower side of the front end, the cut steel-plastic product strip slides onto the material guide plate through the rotary table, and then falls into the material receiving groove through the material guide plate, and the whole processing operation of the steel-plastic product is completed.
The co-extrusion molding method of the metal and the plastic comprises the following specific steps:
step one: penetrating the metal section bar wound on the material roll through the guide sleeve, and inserting the metal section bar into the metal material guide channel, wherein the metal section bar penetrates through the forming cavity through the metal material guide channel;
step two: pouring plastic particles into a feeding hopper, after the plastic particles in the feeding hopper enter an extrusion cylinder, continuously moving the plastic particles in the extrusion cylinder under the pushing of a spiral extrusion rod, melting the plastic particles into molten materials by a heating coil arranged in the center of the inner wall of the extrusion cylinder, and then entering a forming cavity through a first feeding channel under the pushing of the spiral extrusion rod so as to be compounded with a metal profile, thereby realizing integral injection molding, continuously moving a steel-plastic product strip after co-extrusion molding along a forming cavity, and cooling and forming under the rapid cooling of two first cooling cavities;
Step three: the steel-plastic product strip is further air-cooled by an air-cooled fan after passing out of the forming cavity, so that cooling and shaping of the steel-plastic product strip are accelerated, and the air-cooled steel-plastic product strip passes through the second feed inlet and penetrates into the directional channel;
step four: the transparent plastic molten material extruded by the second extrusion mechanism passes through the second feeding channel, then enters the material separation gap, is extruded by the extrusion slit, is attached to the outer surface of the steel-plastic product strip, and is cooled and molded under the rapid cooling of the two second cooling cavities, so that a transparent plastic protective film with the thickness of 0.1mm is formed;
step five: penetrating the strip of the steel-plastic product after the film coating into a water cooling groove through a first limit roller frame, cooling and shaping the strip of the steel-plastic product by cold water in the water cooling groove for the next step, penetrating into a water scraping sponge through a second limit roller frame, and scraping water drops on the outer surface of the strip of the steel-plastic product by the water scraping sponge;
step six: the steel-plastic product strip penetrates through the wiper sponge and then enters between the two traction chain belts, and is extruded and drawn by the two traction chain belts to move towards the fixed-length cutting mechanism;
step seven: the strip of steel-plastic products continues to run through the blanking hole, then continuously move on the rotary table until the strip of steel-plastic products reaches the sensing area at the front end of the photoelectric switch, control signals are immediately transmitted to the cutting cylinder after the strip of steel-plastic products is sensed by the photoelectric switch, the cutting cylinder drives the cutting knife to rapidly complete cutting operation, the cutting knife rapidly resets after cutting the strip of steel-plastic products, the strip of steel-plastic products after cutting is supported on the rotary table, at the moment, the two telescopic cylinders automatically shrink, thereby driving the rotary table to incline towards the lower part of the front end, enabling the strip of steel-plastic products after cutting to slide onto the material guide plate through the rotary table, and then fall into the material collecting groove through the material guide plate, thereby completing the processing of the whole steel-plastic products.
The beneficial effects of the invention are as follows: (1) According to the invention, through designing a continuous co-extrusion forming mechanism and a film coating forming mechanism, after being extruded by the film coating forming mechanism, a molten material can be attached to the outer surface of a strip of a steel-plastic product and is cooled and formed under the rapid cooling of a cooling cavity, so that a transparent plastic protective film with the thickness of 0.1mm is formed, and the surface of the steel-plastic product can be well protected; (2) According to the invention, the film coating forming mechanism is designed, so that a protective film can be formed on the surface of the steel-plastic product just processed and formed, and the steel-plastic product is not easy to scratch due to lack of protection in the subsequent processing, transportation and carrying processes, so that the overall quality of the product can be ensured; (3) The continuous and compact co-extrusion molding equipment is designed, so that the composite processing of the steel-plastic product can be rapidly completed, meanwhile, the film coating processing can be synchronously completed, the process has small modification to the existing equipment, and the product does not need secondary processing, so that the whole production process is simple and efficient.
Drawings
Fig. 1 is a first view structural diagram of the present invention.
Fig. 2 is a second view angle block diagram of the present invention.
Fig. 3 is a third view angle block diagram of the present invention.
Fig. 4 is a front view of the present invention.
Fig. 5 is a schematic structural view of the unreeling mechanism of the present invention.
FIG. 6 is a schematic perspective view of a co-extrusion mechanism according to the present invention.
Fig. 7 is a front view of the co-extrusion mechanism of the present invention.
Fig. 8 A-A is a cross-sectional view of fig. 7.
Fig. 9 is a transverse cross-sectional view of the body of the co-extrusion mechanism of the present invention.
Fig. 10 is a schematic perspective view of the film forming mechanism of the present invention.
Fig. 11 is a transverse cross-sectional view of the body of the film forming mechanism of the present invention.
Fig. 12 is a longitudinal sectional view of the main body of the film forming mechanism of the present invention.
Fig. 13 is a schematic perspective view of a pellicle extrusion module according to the present invention.
Fig. 14 is a cross-sectional view of a pellicle extrusion module of the present invention.
Fig. 15 is a schematic perspective view of an air cooling mechanism according to the present invention.
FIG. 16 is a first view angle block diagram of the water cooling mechanism of the present invention.
FIG. 17 is a view showing a second view angle of the water cooling mechanism of the present invention.
Fig. 18 is a first perspective view of the traction mechanism of the present invention.
Fig. 19 is a second perspective view of the traction mechanism of the present invention.
Fig. 20 is a side view of the traction mechanism of the present invention.
Fig. 21 is a sectional view taken along line B-B of fig. 20.
Fig. 22 is a front view of the fixed length cutting mechanism of the present invention.
Fig. 23 is a perspective view of the fixed length cutting mechanism of the present invention.
Fig. 24 is a right side view of the fixed length cutting mechanism of the present invention.
Reference numerals: 1. an unreeling mechanism; 101. a support base; 102. a support frame; 103. rotating the roll shaft; 104. a material roll; 105. a fixing frame; 106. a guide sleeve; 2. a co-extrusion molding mechanism; 201. a first support table; 202. a first lower die holder; 203. a first upper die holder; 204. a first feed port; 205. a molding cavity; 206. a metal material guide channel; 207. a first feed channel; 208. a first connection base; 209. a first cooling chamber; 210. a first water receiving port; 3. a first extrusion mechanism; 301. an extrusion barrel; 302. an extrusion nozzle; 303. a spiral extrusion rod; 304. a heating coil; 305. a material extruding motor; 306. feeding a hopper; 4. a film forming mechanism; 401. a second support table; 402. a second lower die holder; 403. the second upper die holder; 404. a second feed inlet; 405. a directional channel; 406. a protective film extrusion module; 407. a material penetrating hole; 408. a material separation gap; 409. extruding the fine seam; 410. a feed through; 411. a second feed channel; 412. a second connecting seat; 413. a second cooling chamber; 414. a second water receiving port; 5. a second extrusion mechanism; 6. an air cooling mechanism; 601. a support plate; 602. a mounting bracket; 603. an air-cooled fan; 7. a water cooling mechanism; 701. a third support table; 702. a water cooling tank; 703. a limit rod; 704. a notch; 705. a first spacing roller frame; 706. the second limit roller frame; 707. a wiper rack; 708. a wiper sponge; 8. a traction mechanism; 801. a fourth support table; 802. a traction frame; 803. a driving roll shaft; 804. an auxiliary roll shaft; 805. pulling the chain belt; 806. a traction motor; 807. a control panel; 9. a fixed length cutting mechanism; 901. a fifth support table; 902. cutting a base; 903. cutting a material hole; 904. a cylinder block; 905. cutting an air cylinder; 906. a cutting knife; 907. supporting a vertical plate; 908. a rotary table; 909. a telescopic cylinder; 910. a suspension bracket; 911. a guide limit plate; 912. a material guide plate; 913. an optoelectronic switch; 914. a support base; 915. and a receiving groove.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1-5, the metal and plastic co-extrusion molding device of the embodiment comprises an unreeling mechanism 1, wherein the unreeling mechanism 1 comprises a supporting base 101, the rear end of the top of the supporting base 101 is fixedly connected with a supporting frame 102, the front end of the supporting frame 102 is rotationally connected with a rotating roller shaft 103, the outer wall of the rotating roller shaft 103 is inserted with a material roll 104, one side of the top of the supporting base 101 is fixedly connected with a fixing frame 105, the top of the fixing frame 105 is fixedly connected with a guide sleeve 106 corresponding to the material roll 104, a metal section bar used for being wound into a roll on the material roll 104 comprises a metal filament, a sheet metal strip and the like, the material roll 104 is continuously rotated on the rotating roller shaft 103 in the continuous traction process of the device, and the wound metal section bar is slowly released.
As shown in fig. 6-9, a co-extrusion forming mechanism 2 is arranged on one side of the unreeling mechanism 1, the co-extrusion forming mechanism 2 comprises a first supporting table 201, a first lower die holder 202 is arranged at the front end of the top of the first supporting table 201, a first upper die holder 203 is arranged at the top of the first lower die holder 202, a first feeding hole 204 is arranged on one side between the first lower die holder 202 and the first upper die holder 203, a forming cavity 205 is arranged between the first lower die holder 202 and the first upper die holder 203, a metal material guide channel 206 corresponding to the first feeding hole 204 is arranged on one side of the forming cavity 205, a first feeding channel 207 communicated with the forming cavity 205 is arranged in the first lower die holder 202, a first connecting seat 208 is fixedly connected at the opening of the rear end of the first feeding channel 207, a first cooling cavity 209 is arranged on one sides of the centers of the first lower die holder 202 and the first upper die holder 203, which are far away from the first feeding hole 204, the first water receiving ports 210 communicated with the corresponding first cooling cavities 209 are arranged on one side of the outer surfaces of the front end and the rear end of the first lower die holder 202 and the first upper die holder 203, the two first water receiving ports 210 at the front end can be connected with a water inlet pipe, the two first water receiving ports 210 at the rear end can be connected with a water outlet pipe, the water inlet pipe can continuously supply cold water into the two first cooling cavities 209, water after heat exchange can be discharged through the water outlet pipe, the metal section bar wound on the material roll 104 can penetrate through the forming cavity 205 through the metal material guide channel 206 after being inserted into the first feed channel 207, after the molten material enters the forming cavity 205 through the first feed channel 207, the molten material continuously extruded into the forming cavity 205 can be compounded with the metal section bar to realize integral injection molding, the steel-plastic product strip after the co-extrusion molding continuously moves along the forming cavity 205, and is cooled and formed under rapid cooling of the two first cooling chambers 209.
As shown in fig. 8, a first extrusion mechanism 3 is installed at the rear end of the top of the co-extrusion molding mechanism 2, the first extrusion mechanism 3 comprises an extrusion barrel 301 arranged above a first supporting table 201, the front end of the extrusion barrel 301 is fixedly connected with an extrusion nozzle 302, the front end of the extrusion nozzle 302 is connected with a first connecting seat 208, a spiral extrusion rod 303 is rotatably connected in the extrusion barrel 301, a heating coil 304 is installed at the center of the inner wall of the extrusion barrel 301, an extrusion motor 305 connected with the spiral extrusion rod 303 is installed at the rear end of the top of the first supporting table 201, a feeding hopper 306 communicated with the top of the extrusion barrel 301 is fixedly connected with the rear end of the top of the extrusion barrel 301, after plastic particles in the feeding hopper 306 are poured into the extrusion barrel 301, the plastic particles in the feeding hopper 306 are driven to rotate by the extrusion motor 305, under the pushing of the spiral extrusion rod 303, the plastic particles continuously move in the extrusion barrel 301, the heating coil 304 installed at the center of the inner wall of the extrusion barrel 301 melts the plastic particles into molten materials, and then the molten materials are pushed down by the spiral extrusion rod 303, pass through the extrusion nozzle 302 and enter a first feeding channel 207.
As shown in fig. 10-14, a film forming mechanism 4 is arranged on one side of the co-extrusion forming mechanism 2 away from the unreeling mechanism 1, and a second extrusion mechanism 5 is arranged at the rear end of the top of the film forming mechanism 4; the first extruding mechanism 3 and the second extruding mechanism 5 have the same structure; the film forming mechanism 4 comprises a second supporting table 401, a second lower die holder 402 is arranged at the front end of the top of the second supporting table 401, a second upper die holder 403 is arranged at the top of the second lower die holder 402, a second feed port 404 is arranged at one side between the second lower die holder 402 and the second upper die holder 403, a directional channel 405 is arranged at the center between the second lower die holder 402 and the second upper die holder 403, a protective film extrusion module 406 is arranged at one side of the center of the directional channel 405, which is close to the second feed port 404, a feed through hole 407 is arranged at the center of the protective film extrusion module 406, a distributing gap 408 is arranged at the peripheral side of the inner wall of the protective film extrusion module 406, an extrusion slit 409 communicated with the distributing gap 408 is arranged at one side of the inner wall of the feed through hole 407, a feed through hole 410 communicated with the distributing gap 408 is arranged at the center of the bottom of the protective film extrusion module 406, a second feed through channel 411 communicated with the feed through hole 410 is arranged at one side of the center of the second lower die holder 402, which is close to the second feed port 404, the opening at the rear end of the second feeding channel 411 is fixedly connected with a second connecting seat 412, the front end of the second extruding mechanism 5 is connected with the second connecting seat 412, one sides of the centers of the second lower die holder 402 and the second upper die holder 403, which are far away from the second feeding port 404, are respectively provided with a second cooling cavity 413, one sides of the outer surfaces of the front end and the rear end of the second lower die holder 402 and the second upper die holder 403 are respectively provided with a second water receiving port 414 communicated with the corresponding second cooling cavity 413, the two second water receiving ports 414 at the front end can be connected with a water inlet pipe, the two second water receiving ports 414 at the rear end can be connected with a water outlet pipe, the water inlet pipe can continuously supply cold water to the two second cooling cavities 413, water after heat exchange can be discharged through the water outlet pipe, the steel-plastic product strip after air cooling can penetrate into the directional channel 405 through the second feeding port 404, the transparent plastic molten material extruded by the second extrusion mechanism 5 enters the second feeding channel 411, then enters the material distributing gap 408 through the feeding through hole 410, finally is extruded through the extrusion slit 409 and is attached to the outer surface of the moving steel-plastic product strip, and is cooled and molded under the rapid cooling of the two second cooling cavities 413, so that the transparent plastic protective film with the thickness of 0.1mm is formed.
As shown in fig. 15, an air cooling mechanism 6 is arranged between the co-extrusion molding mechanism 2 and the film coating molding mechanism 4; the air cooling mechanism 6 comprises a supporting plate 601, the supporting plate 601 is fixed between the first supporting table 201 and the second supporting table 401, a mounting bracket 602 is arranged at the center of the top of the supporting plate 601, an air cooling fan 603 is arranged on the mounting bracket 602, and the formed steel-plastic product strip is further air-cooled by the air cooling fan 603 on the mounting bracket 602 after penetrating out of the forming cavity 205, so that cooling and shaping of the steel-plastic product strip are accelerated.
As shown in fig. 16-17, a water cooling mechanism 7 is arranged at one side of the film coating forming mechanism 4 far away from the co-extrusion forming mechanism 2, the water cooling mechanism 7 comprises a third supporting table 701, a water cooling groove 702 is arranged at the top of the third supporting table 701, a plurality of limit rods 703 are fixedly connected between the front end and the rear end of the inner wall of the water cooling groove 702, a notch 704 is formed at one side of the top of the water cooling groove 702 close to the second supporting table 401, a first limit roller frame 705 and a second limit roller frame 706 are respectively arranged at two sides of the top of the third supporting table 701, the first limit roller frame 705 is positioned at one side of the top of the third supporting table 701 close to the notch 704, a wiper frame 707 is fixedly connected at the edge of one end of the top of the third supporting table 701 close to the second limit roller frame 706, a wiper sponge 708 is arranged on the wiper frame 707, and after a strip of a steel-plastic product after film coating passes through the orientation channel 405, the strip of steel-plastic products penetrates into the water-cooling groove 702 through the first limit roller frame 705, cold water in the water-cooling groove 702 cools and shapes the strip of steel-plastic products in one step, a plurality of limit rods 703 are fixedly connected between the front end and the rear end of the inner wall of the water-cooling groove 702, the strip of steel-plastic products can be guaranteed to be positioned below the water surface, cooling efficiency is guaranteed, after the strip of steel-plastic products after water cooling penetrates out of the water-cooling groove 702, the strip of steel-plastic products penetrate into the water-scraping sponge 708 through the second limit roller frame 706, water drops on the outer surface of the strip of steel-plastic products are scraped by the water-scraping sponge 708, round holes (not shown in the drawing) are formed in the bottoms of two sides of the rear end of the water-cooling groove 702, the round holes are respectively used for connecting a water inlet pipe and a water outlet pipe, the cold water is continuously injected into the water-cooling groove 702, and the water outlet pipe is used for discharging water after heat exchange, so that lower water temperature in the water-cooling groove 702 is guaranteed, and cooling efficiency is guaranteed.
As shown in fig. 18 to 21, a traction mechanism 8 is arranged on one side of the water cooling mechanism 7 away from the film forming mechanism 4; the traction mechanism 8 comprises a fourth supporting table 801, a traction frame 802 is fixedly connected to the top of the fourth supporting table 801, driving roll shafts 803 are rotatably connected to the top and the bottom of one side of the front end of the traction frame 802, auxiliary roll shafts 804 are rotatably connected to the top and the bottom of the other side of the front end of the traction frame 802, traction chain belts 805 are mounted between the two groups of driving roll shafts 803 and the auxiliary roll shafts 804, traction motors 806 connected with the corresponding driving roll shafts 803 are mounted on one side of the rear end of the traction frame 802, a control panel 807 corresponding to the two traction motors 806 is mounted on the top of the front end center of the fourth supporting table 801, steel-plastic product strips penetrate through the wiper sponge 708 and then enter between the two traction chain belts 805, after the steel-plastic product strips penetrate between the two traction chain belts 805, the two traction motors 806 are started, the two traction motors 806 are turned opposite, so that the two traction chain belts 805 can be driven to synchronously move through the two groups of driving roll shafts 803 and the auxiliary roll shafts 804, and at the moment, the steel-plastic product strips are extruded and pulled by the two traction belts 805 move towards the direction of the fixed-length cutting mechanism 9.
As shown in fig. 22-24, a fixed-length cutting mechanism 9 is arranged on one side of the traction mechanism 8 away from the water cooling mechanism 7; the fixed length cutting mechanism 9 comprises a fifth supporting table 901, a cutting seat 902 is fixedly connected to one side of the top of the fifth supporting table 901, a horizontally penetrating blanking hole 903 is formed in the cutting seat 902, a cylinder seat 904 is fixedly connected to one side of the top of the cutting seat 902 far away from the traction mechanism 8, a cutting cylinder 905 is mounted on the top of the cylinder seat 904, a cutting knife 906 corresponding to the penetrating blanking hole 903 is fixedly connected to the bottom end of a piston rod of the cutting cylinder 905, a supporting vertical plate 907 is fixedly connected to the top of the fifth supporting table 901, a rotary table 908 is rotatably connected to the center of the front end of the supporting vertical plate 907, telescopic cylinders 909 are rotatably connected to two sides of the bottom of the front end of the supporting vertical plate 907, the front ends of the piston rods of the two telescopic cylinders 909 are rotatably connected with the rotary table 908, a plurality of suspension brackets 910 are mounted on the top of the supporting vertical plate 907, a guide limiting plate 911 which is obliquely arranged is mounted on the bottom of the plurality of suspension brackets 910, the front end of the top of the fifth supporting table 901 is fixedly connected with a guide plate 912 which is obliquely arranged, one side of the front end of a supporting vertical plate 907 far away from the cutting seat 902 is provided with a photoelectric switch 913 corresponding to a telescopic cylinder 909, the bottom of the photoelectric switch 913 is attached to the plane of the top of the rotary table 908, the front end of the fifth supporting table 901 is provided with a supporting seat 914, a receiving groove 915 is arranged at the top of the supporting seat 914, after the steel-plastic product strip penetrates through the cutting hole 903, the steel-plastic product strip continuously moves under the traction of a traction mechanism 8, so that the end of the steel-plastic product strip continuously moves on the rotary table 908 until the end of the steel-plastic product strip reaches the induction area of the front end of the photoelectric switch 913 and is identified by the induction of the photoelectric switch 913, after the photoelectric switch 913 senses the steel-plastic product strip, a control signal is immediately transmitted to the cutting cylinder 905, a cutting knife 906 is driven by the cutting cylinder 905 to rapidly complete the cutting operation, the cutting knife 906 rapidly resets after the steel-plastic product strip is cut, the cut steel-plastic product strip is supported on the rotary table 908, and at the moment, the two telescopic cylinders 909 automatically shrink, so that the rotary table 908 is driven to incline towards the lower part of the front end, the cut steel-plastic product strip slides onto the material guide plate 912 through the rotary table 908, and then falls into the material receiving groove 915 through the material guide plate 912, and the whole processing operation of the steel-plastic product is completed.
The co-extrusion molding method of the metal and the plastic comprises the following specific steps:
step one: penetrating the metal section wound on the material roll 104 through the guide sleeve 106 and inserting the metal section into the metal material guide channel 206, and penetrating the metal section through the metal material guide channel 206 into the forming cavity 205;
step two: after plastic particles are poured into a feeding hopper 306, the plastic particles in the feeding hopper 306 enter an extrusion cylinder 301, the plastic particles continuously move in the extrusion cylinder 301 under the pushing of a spiral extrusion rod 303, a heating coil 304 arranged in the center of the inner wall of the extrusion cylinder 301 melts the plastic particles into molten materials, then the molten materials enter a forming cavity 205 through a first feeding channel 207 under the pushing of the spiral extrusion rod 303, so that the molten materials are compounded with metal profiles, integral injection molding is realized, a steel-plastic product strip after co-extrusion molding continuously moves along the forming cavity 205, and the steel-plastic product strip is cooled and formed under the rapid cooling of two first cooling cavities 209;
step three: after passing out of the forming cavity 205, the steel-plastic product strip is further air-cooled by an air cooling fan 603 to accelerate cooling and shaping of the steel-plastic product strip, and the air-cooled steel-plastic product strip passes through a second feed inlet 404 and penetrates into a directional channel 405;
step four: the transparent plastic molten material extruded by the second extrusion mechanism 5 passes through the second feeding channel 411, then the molten material enters the material dividing gap 408, finally the molten material is extruded through the extrusion slit 409, is attached to the outer surface of the steel-plastic product strip, and is cooled and molded under the rapid cooling of the two second cooling cavities 413, so that a transparent plastic protective film with the thickness of 0.1mm is formed;
Step five: the strip of the steel-plastic product after the film coating penetrates into the water cooling groove 702 through the first limit roller frame 705, the strip of the steel-plastic product is cooled and shaped by cold water in the water cooling groove 702, then penetrates into the water scraping sponge 708 through the second limit roller frame 706, and water drops on the outer surface of the strip of the steel-plastic product are scraped by the water scraping sponge 708;
step six: the strip of the steel-plastic product penetrates through the wiper sponge 708 and then enters between the two traction chain belts 805, and the strip of the steel-plastic product is extruded and drawn by the two traction chain belts 805 to move towards the fixed-length cutting mechanism 9;
step seven: the strip of steel-plastic product continues to penetrate through the cutting hole 903, then continuously moves on the rotary table 908 until the strip of steel-plastic product reaches the sensing area at the front end of the photoelectric switch 913, immediately transmits a control signal to the cutting cylinder 905 after the photoelectric switch 913 senses the strip of steel-plastic product, the cutting cylinder 905 drives the cutting knife 906 to rapidly complete cutting operation, the cutting knife 906 rapidly resets after cutting the strip of steel-plastic product, the cut strip of steel-plastic product is supported on the rotary table 908, at the moment, the two telescopic cylinders 909 automatically shrink, thereby driving the rotary table 908 to incline towards the lower part of the front end, enabling the cut strip of steel-plastic product to slide onto the material guide plate 912 through the rotary table 908, and then fall into the material receiving groove 915 through the material guide plate 912, thereby completing the processing of the whole steel-plastic product.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention.
Claims (10)
1. The utility model provides a metal and plastics coextrusion molding equipment, includes unreeling mechanism (1), its characterized in that: one side of the unreeling mechanism (1) is provided with a co-extrusion forming mechanism (2), the rear end of the top of the co-extrusion forming mechanism (2) is provided with a first extrusion mechanism (3), one side of the co-extrusion forming mechanism (2) away from the unreeling mechanism (1) is provided with a film coating forming mechanism (4), and the rear end of the top of the film coating forming mechanism (4) is provided with a second extrusion mechanism (5);
the first extrusion mechanism (3) and the second extrusion mechanism (5) have the same structure, and an air cooling mechanism (6) is arranged between the co-extrusion forming mechanism (2) and the film coating forming mechanism (4);
a water cooling mechanism (7) is arranged on one side of the film coating forming mechanism (4) away from the co-extrusion forming mechanism (2), and a traction mechanism (8) is arranged on one side of the water cooling mechanism (7) away from the film coating forming mechanism (4);
one side of the traction mechanism (8) far away from the water cooling mechanism (7) is provided with a fixed-length cutting mechanism (9).
2. The metal and plastic co-extrusion molding equipment according to claim 1, wherein the unreeling mechanism (1) comprises a supporting base (101), a supporting frame (102) is fixedly connected to the rear end of the top of the supporting base (101), a rotary roll shaft (103) is rotatably connected to the front end of the supporting frame (102), a material roll (104) is inserted into the outer wall of the rotary roll shaft (103), a fixing frame (105) is fixedly connected to one side of the top of the supporting base (101), and a guide sleeve (106) corresponding to the material roll (104) is fixedly connected to the top of the fixing frame (105).
3. The metal and plastic co-extrusion molding equipment according to claim 1, wherein the co-extrusion molding mechanism (2) comprises a first supporting table (201), a first lower die holder (202) is arranged at the front end of the top of the first supporting table (201), a first upper die holder (203) is arranged at the top of the first lower die holder (202), a first feed port (204) is arranged on one side between the first lower die holder (202) and the first upper die holder (203), a molding cavity (205) is arranged between the first lower die holder (202) and the first upper die holder (203), a metal material guide channel (206) corresponding to the first feed port (204) is arranged on one side of the molding cavity (205), a first connecting seat feed channel (207) communicated with the molding cavity (205) is arranged in the first lower die holder (202), a first connecting seat (208) is fixedly connected to the rear end opening of the first feed channel (207), a first cooling cavity (209) is arranged on one side of the first lower die holder (202) away from the first feed port (204), and the first cooling cavity (209) is arranged on the other side of the first lower die holder (209).
4. A metal and plastic co-extrusion molding apparatus according to claim 3, wherein the first extrusion mechanism (3) comprises an extrusion barrel (301) arranged above the first supporting table (201), a front end of the extrusion barrel (301) is fixedly connected with an extrusion nozzle (302), a front end of the extrusion nozzle (302) is connected with the first connecting seat (208), a spiral extrusion rod (303) is rotationally connected with the extrusion barrel (301), a heating coil (304) is installed in the center of the inner wall of the extrusion barrel (301), an extrusion motor (305) connected with the spiral extrusion rod (303) is installed at the rear end of the top of the first supporting table (201), and a feeding hopper (306) communicated with the rear end of the top of the extrusion barrel (301) is fixedly connected with the extrusion motor.
5. The metal and plastic co-extrusion molding equipment according to claim 3, wherein the film coating molding mechanism (4) comprises a second supporting table (401), a second lower die holder (402) is arranged at the front end of the top of the second supporting table (401), a second upper die holder (403) is arranged at the top of the second lower die holder (402), a second feeding hole (404) is arranged at one side between the second lower die holder (402) and the second upper die holder (403), a directional channel (405) is arranged at the center between the second lower die holder (402) and the second upper die holder (403), a protective film extrusion module (406) is arranged at one side, which is close to the second feeding hole (404), of the center of the protective film extrusion module (406), a separation gap (408) is arranged at the periphery side of the inner wall of the protective film extrusion module (406), an extrusion slit (409) which is communicated with the separation gap (408) is arranged at one side of the inner wall of the protective film extrusion module (407), a fine feed through hole (410) is arranged at one side, which is close to the second feeding hole (410), of the center of the protective film extrusion module (406) is arranged at one side, which is communicated with the second feeding hole (410), the second feeding channel (411) rear end opening part fixedly connected with second connecting seat (412), the front end of second extrusion mechanism (5) is connected with second connecting seat (412), second cooling chamber (413) have all been seted up to one side that second feed inlet (404) were kept away from at second die holder (402) and second upper die holder (403) center, one side of second die holder (402) and second upper die holder (403) front and back end surface all is provided with second water receiving mouth (414) that link up mutually with corresponding second cooling chamber (413).
6. The metal and plastic co-extrusion apparatus according to claim 5, wherein the air cooling mechanism (6) comprises a support plate (601), the support plate (601) is fixed between a first support table (201) and a second support table (401), a mounting bracket (602) is installed in the center of the top of the support plate (601), and an air cooling fan (603) is installed on the mounting bracket (602).
7. The metal and plastic co-extrusion molding equipment according to claim 6, wherein the water cooling mechanism (7) comprises a third supporting table (701), a water cooling groove (702) is formed in the top of the third supporting table (701), a plurality of limiting rods (703) are fixedly connected between the front end and the rear end of the inner wall of the water cooling groove (702), a notch (704) is formed in one side, close to the second supporting table (401), of the top of the water cooling groove (702), a first limiting roller frame (705) and a second limiting roller frame (706) are respectively arranged on two sides of the top of the third supporting table (701), the first limiting roller frame (705) is located on one side, close to the notch (704), of the top of the third supporting table (701), a wiper frame (707) is fixedly connected to the edge, close to one end of the second limiting roller frame (706), and a wiper sponge (708) is arranged on the wiper frame (707).
8. The metal and plastic co-extrusion molding equipment according to claim 7, wherein the traction mechanism (8) comprises a fourth supporting table (801), a traction frame (802) is fixedly connected to the top of the fourth supporting table (801), driving roll shafts (803) are rotatably connected to the top and the bottom of one side of the front end of the traction frame (802), auxiliary roll shafts (804) are rotatably connected to the top and the bottom of the other side of the front end of the traction frame (802), traction chain belts (805) are mounted between the driving roll shafts (803) and the auxiliary roll shafts (804), two traction motors (806) connected with the corresponding driving roll shafts (803) are mounted on one side of the rear end of the traction frame (802), and a control panel (807) corresponding to the two traction motors (806) is mounted on the top of the front end center of the fourth supporting table (801).
9. The metal and plastic co-extrusion molding device according to claim 8, wherein the fixed length cutting mechanism (9) comprises a fifth supporting table (901), one side of the top of the fifth supporting table (901) is fixedly connected with a cutting seat (902), a horizontally penetrating blanking hole (903) is formed in the cutting seat (902), one side of the top of the cutting seat (902) away from the traction mechanism (8) is fixedly connected with a cylinder seat (904), a cutting cylinder (905) is mounted at the top of the cylinder seat (904), a cutting knife (906) corresponding to the penetrating blanking hole (903) is fixedly connected at the bottom end of a piston rod of the cutting cylinder (905), a supporting vertical plate (907) is fixedly connected at the top of the fifth supporting table (901), a rotary table (908) is rotatably connected at the center of the front end of the supporting vertical plate (907), telescopic cylinders (909) are rotatably connected at two sides of the front end of the supporting plate (907), a plurality of guide brackets (912) are rotatably connected with the rotary table (908), a plurality of guide brackets (912) are obliquely arranged at the top of the supporting vertical plate (907), a plurality of guide brackets (910) are obliquely arranged at the top of the supporting plate (901), the photoelectric switch (913) corresponding to the telescopic cylinder (909) is arranged on one side, far away from the cutting seat (902), of the front end of the supporting vertical plate (907), the bottom of the photoelectric switch (913) is attached to the top plane of the rotary table (908), the front end of the fifth supporting table (901) is provided with a supporting seat (914), and a receiving groove (915) is arranged at the top of the supporting seat (914).
10. A method of co-extrusion of metal and plastic according to any one of claims 1 to 9, comprising the specific steps of:
step one: penetrating a metal section wound on the material roll (104) through the guide sleeve (106) and inserting the metal section into the metal material guide channel (206), wherein the metal section penetrates through the forming cavity (205) through the metal material guide channel (206);
step two: after plastic particles are poured into a feeding hopper (306), the plastic particles in the feeding hopper (306) enter an extrusion barrel (301), the plastic particles continuously move in the extrusion barrel (301) under the pushing of a spiral extrusion rod (303), a heating coil (304) arranged in the center of the inner wall of the extrusion barrel (301) melts the plastic particles into molten materials, and then the molten materials enter a forming cavity (205) through a first feeding channel (207) under the pushing of the spiral extrusion rod (303), so that the molten materials are compounded with metal profiles, integral injection molding is realized, steel-plastic product strips after co-extrusion molding continue to move along the forming cavity (205), and are cooled and formed under the rapid cooling of two first cooling cavities (209);
step three: after passing out of the forming cavity (205), the steel-plastic product strip is further air-cooled by an air cooling fan (603) to accelerate cooling and shaping of the steel-plastic product strip, and the air-cooled steel-plastic product strip penetrates into the directional channel (405) through the second feed inlet (404);
Step four: the transparent plastic molten material extruded by the second extrusion mechanism (5) passes through a second feeding channel (411), then enters a material dividing gap (408), is extruded through an extrusion slit (409), is attached to the outer surface of a steel-plastic product strip, and is cooled and molded under the rapid cooling of two second cooling cavities (413), so that a transparent plastic protective film with the thickness of 0.1mm is formed;
step five: penetrating the strip of the coated steel-plastic product into a water cooling groove (702) through a first limit roller frame (705), cooling and shaping the strip of the coated steel-plastic product by cold water in the water cooling groove (702), penetrating into a wiper sponge (708) through a second limit roller frame (706), and scraping water drops on the outer surface of the strip of the steel-plastic product by the wiper sponge (708);
step six: the steel-plastic product strip penetrates through the wiper sponge (708) and then enters between the two traction chain belts (805), and the steel-plastic product strip is extruded and drawn by the two traction chain belts (805) to move towards the fixed-length cutting mechanism (9);
step seven: the strip of the steel-plastic product continuously penetrates through the cutting hole (903), then continuously moves on the rotary table (908) until the strip of the steel-plastic product reaches the sensing area at the front end of the photoelectric switch (913), after the photoelectric switch (913) senses the strip of the steel-plastic product, a control signal is immediately transmitted to the cutting cylinder (905), the cutting cylinder (905) drives the cutting knife (906) to rapidly complete cutting operation, the cutting knife (906) rapidly resets after cutting the strip of the steel-plastic product, the strip of the steel-plastic product after cutting is supported on the rotary table (908), at the moment, the two telescopic cylinders (909) automatically shrink, so that the rotary table (908) is driven to incline towards the lower part of the front end, the cut strip of the steel-plastic product slides onto the material guide plate (912) through the rotary table (908), and then falls into the material receiving groove (915) through the material guide plate (912), and thus the whole processing of the steel-plastic product is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310564164.6A CN117445343A (en) | 2023-05-18 | 2023-05-18 | Metal and plastic co-extrusion molding equipment and molding method |
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| CN202310564164.6A CN117445343A (en) | 2023-05-18 | 2023-05-18 | Metal and plastic co-extrusion molding equipment and molding method |
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