CN101628453B - High polymer material plasticizing transportation device based on tension rheology and shear rheology - Google Patents
High polymer material plasticizing transportation device based on tension rheology and shear rheology Download PDFInfo
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- CN101628453B CN101628453B CN2009101444846A CN200910144484A CN101628453B CN 101628453 B CN101628453 B CN 101628453B CN 2009101444846 A CN2009101444846 A CN 2009101444846A CN 200910144484 A CN200910144484 A CN 200910144484A CN 101628453 B CN101628453 B CN 101628453B
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- plasticizing
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- entry table
- rheology
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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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/47—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using discs, e.g. plasticising the moulding material by passing it between a fixed and a rotating disc that are coaxially arranged
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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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/475—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pistons, accumulators or press rams
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a high polymer material plasticizing transportation device based on tension rheology and shear rheology for stretching and shearing materials synchronously in the high polymer material plasticizing transportation process, comprising at least one plasticizing transportation unit arranged on a same transmission shaft. All plasticizing transportation units are connected together in series and each plasticizing transportation unit comprises a feeding disc, an exhaust disc, an extrusion disc arranged between the feeding disc and the exhaust disc, and a plurality of tooth-shaped push rods arranged in a rectangular through hole of the extrusion disc and evenly distributed along a circumference direction. Full compound dynamic plasticizing transportation extruder can be combined by overlapping the plurality of plasticizing transportation units; plasticizing transportation unit, various screw extrusion units or plunger injection units can be combined into a compound dynamic plasticizing injector of various extruders or injectors.
Description
Technical field
The present invention relates to the plasticizing feeding device of macromolecular material, refer more particularly to high polymer material plasticizing feeding device based on draft flowing deformation and shear rheology.
Background technology
At present, the macromolecular material processing and forming extrude still be the injection all be to accomplish through screw rod, screw rod accounts for the overwhelming majority of processing of high molecular material energy consumption to the used energy of process of conveying, fusion and the plasticizing of plastic raw materials.In screw rod mechanism; The plasticizing of material transport mainly be when leaning on the screw rod rotation to the effect of dragging of material: Solid Conveying and Melting is the friction towing; Melt Conveying is a viscous drag, and the velocity gradient of material flows vertically with deformation direction with it, and this flowing arranged by shear stress mainly with being out of shape.Therefore, can think that the screw rod mechanism of extensive use at present is based on the high polymer material plasticizing conveying equipment of shear rheology, the plasticizing transport capability of equipment depends on frictional force and the material internal friction between material and the metal charge tube inner surface strongly like this.So in screw rod mechanism, take usually at present on barrel fluting with increase with the frictional force of material, increase screw rod draw ratio, optimize measures such as screw-rod structure and can address the above problem to a certain extent, but these measures often all can cause defectives such as hot mechanical course lengthening, the energy consumption of material increase, device structure is bulky.
The Electromagnetic Dynamic contour machining equipment of macromolecular material shortened to a certain extent the molding process material hot mechanical course, reduced energy consumption; But it remains the spiro rod plasticizing conveying equipment based on shear rheology in essence; The plasticizing transport capability be can't fundamentally solve and frictional force and the problem of material internal friction between material and the metal charge tube inner surface depended on; Therefore, its cut down the consumption of energy and improve the plasticizing transport capability degree limited.
Blade plasticizing supply unit reaches has truly realized first that by its macromolecular material conveying equipment of forming the material plasticizing that direct stress plays a major role transports, volume is little, energy consumption is low.So-called blade plasticizing supply unit be adopt hollow stator with cylindrical cavity, place bore of stator and with the eccentric cylindrical rotor of stator, be arranged in the radially rectangular through-hole of rotor some arrange along the equally distributed blade of rotor circumference direction and in the stator both sides and with the plasticizing supply unit of the spatially-variable of parts such as the backgauge dish composition of the concentric installation of stator.This plasticizing conveying equipment mainly is to realize the plasticizing of material is transported through direct stress, promptly mainly adopt draft flowing deformation to realize that the plasticizing of material transports, and shear action is little; The screw rod conveying equipment of extensive use at present transports then to be cut into the master the plasticizing of material, and stretching action is little; Thus, these two kinds plasticizing transport systems all only adopt a certain means (stretching or shearing) to the processing of macromolecular material, all do not have to bring into play the comprehensive advantage of two kinds of manufacturing process.Up to now, also do not have effectively to merge the high polymer material plasticizing conveying equipment that stretches and shear these two kinds of technology.
Summary of the invention
Technical problem to be solved by this invention is: a kind of high polymer material plasticizing feeding device based on draft flowing deformation and shear rheology that in macromolecule plasticizing transport process, material is stretched simultaneously and shears is provided.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: the high polymer material plasticizing feeding device based on draft flowing deformation and shear rheology comprises: be arranged on that at least one plasticizing transports the unit on the same power transmission shaft, all plasticizings transport the unit and are connected in series together; Each plasticizing transports the unit and comprises: activity is located in entry table, the feed disk on the power transmission shaft and is fixed on the extruding disk on the power transmission shaft; Extruding disk between entry table and feed disk, offer respectively on the inner side end of entry table and feed disk cooperatively interact from shallow to deep, again by being deep to shallow cannelure, entry table is provided with charging aperture; Feed disk is provided with discharging opening; And charging aperture and discharging opening stagger each other, and the extruding disk upper edge circumferentially evenly is furnished with at least three rectangular through-hole, is provided with the profile of tooth push rod in each rectangular through-hole; Leave material passing passage between each profile of tooth push rod and the corresponding rectangular through-hole, and the two ends of all profile of tooth push rods are retrained by entry table and feed disk.
Described extruding disk upper edge circumferentially evenly is furnished with four rectangular through-hole.
The invention has the beneficial effects as follows: the present invention adopts entry table, feed disk and places the extruding disk between entry table, the feed disk and be arranged in along the circumferential direction equally distributed plurality of tooth-shaped push rod composition plasticizing supply unit in the extruding disk rectangular through-hole.The space that the inner face of entry table and feed disk, the both ends of the surface of extruding disk and plurality of tooth-shaped push rod constitute; When extruding disk rotates under power transmission shaft drives; The profile of tooth push rod axially moves back and forth in the extruding disk rectangular through-hole owing to receive the constraint of entry table and feed disk inner face; Cause ascending, the descending cyclically-varying again of above-mentioned spatial volume, the material that is in this space mainly receives two aspect effects:
When 1. this spatial volume is changed from small to big; Material is included in gradually; This spatial volume from large to small the time material ground, compacting, exhaust, and from outside fusion plastification and being discharged under the auxilliary heat effect, realize that material is accomplished to plastify transport process in very short hot mechanical course.This spatial volume ascending, again during descending variation; Flowing and also ascending, the descending cyclically-varying again of sectional area that distortion is passed through of material; The velocity gradient of material flows consistent with deformation direction with it; This flow and distortion mainly is the direct stress domination can be thought the plasticizing transport process based on draft flowing deformation;
2. because extruding disk rotation, entry table and feed disk are static, the material that is arranged in above-mentioned space also receives shear action simultaneously, this shearing force variable size and opposite with the variation of above-mentioned spatial volume.
The material that is arranged in above-mentioned space receives the synergy of direct stress and shear stress simultaneously, and the size of suffered direct stress and shear stress is periodically dynamic change, is defined as compound dynamic plasticizing and transports the unit so this plasticizing transports the unit.
With respect to simple draft flowing deformation unit or shear rheology unit, compound dynamic plasticizing transports that the unit is better to material plasticizing, melting effect, the hot mechanical course of material is shorter, energy consumption is lower.The overlapped in series that a plurality of compound dynamic plasticizings transport the unit can make up helps compound dynamic plasticizing and carries extruder, and compound dynamic plasticizing transports the compound dynamic plasticizing injection device that unit and various screw rod squeeze unit or various plunger injections unit can be combined into various extruders or injector.
The invention solves the plasticizing of material in the spiro rod plasticizing transport process and transport the frictional force that mainly depends between material and the metal charge tube inner surface and the problem of material internal friction and blade plasticizing transport the unit simple draft flowing deformation problem can only be provided.Transport technology and apparatus in comparison with spiro rod plasticizing, have following advantage:
1, accomplish the plasticizing hot mechanical course that transport process experienced and shorten greatly, plasticizing transports energy consumption and reduces;
2, plasticizing transports by the spatial volume variation of given shape and accomplishes, and has complete positive displacement characteristic, and efficient is high;
3, the plasticizing transport process is accomplished in very short hot mechanical course, and it is little to plastify the conveying equipment volume accordingly;
4, the plasticizing transport capability does not rely on the physical characteristic of material and the friction drag of material inside and outside portion.
The present invention and blade plasticizing transport technology and apparatus in comparison, have following advantage:
1, the blade arrangement of blade plasticizing conveying equipment is in the rectangular through-hole of rotor radial; Owing to receive the restriction of rotor strength; The blade logarithm that can be arranged in therebetween is limited, and the profile of tooth push rod among the present invention is evenly arranged along the circumferencial direction of extruding disk, to the almost not influence of intensity of extruding disk; The quantity of profile of tooth push rod is installed can decide according to the needs of material processing fully, thereby it is stable better to have guaranteed that material transports;
2, material mainly receives the direct stress effect in the blade plasticizing conveying equipment, and shear effect is little.The technical advantage of compound dynamic plasticizing conveying equipment of the present invention is integrated draft flowing deformation and shear rheology; The material that is positioned at wherein receives direct stress and shear stress synergy simultaneously; Its intensity is cyclically-varying; This compound dynamic manufacturing process makes that material plasticizing is faster, mixed effect is better, and is difficult for degraded.
Description of drawings
Fig. 1 is a cross-sectional view of the present invention.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Fig. 3 is the right TV structure sketch map of Fig. 1.
Fig. 4 is the cross-sectional view that single plasticizing transports the unit among Fig. 1.
Fig. 5 is the B-B cross-sectional view of Fig. 4.
Fig. 6 is the right TV structure sketch map of Fig. 4.
Fig. 7 is that the K of Fig. 4 is to structural representation.
Fig. 8 is a practical application structural representation of the present invention.
Among Fig. 1 to Fig. 8: 1, feed hopper, 2, power transmission shaft, 3, entry table, 31, charging aperture, 32, cannelure; 4, extruding disk, 41, material passing passage, 5, feed disk, 51, discharging opening; 52, cannelure, 6, the profile of tooth push rod, 7, machine barrel, 10, loading head; 11, injection cylinder, 12, injection ram, 13, the injection barrel, 14, nozzle.
The specific embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present invention in detail.
As shown in Figure 1; High polymer material plasticizing feeding device based on draft flowing deformation and shear rheology of the present invention; Comprise: be arranged on the same power transmission shaft 2 three plasticizings and transport the unit and promptly plastify and transport unit I, II and III; These three plasticizings transport unit I, II and III serial connection together; The charging aperture that plasticizing transports unit I is connected with feed hopper 1; The charging aperture that plasticizing transports unit II is connected with the discharging opening that plasticizing transports unit I; The charging aperture that plasticizing transports unit III is connected with the discharging opening that plasticizing transports unit II, and as shown in Figure 4, each plasticizing transports the unit and comprises: activity is located in entry table 3, the feed disk 5 on the power transmission shaft 2 and is fixed on the extruding disk 4 on the power transmission shaft 1; Extruding disk 4 between entry table 3 and feed disk 5, its both sides end face respectively with the inner side end matched in clearance of the inner side end and the feed disk 5 of entry table 3; Its gap between 0.1～0.2 millimeter, offers from shallow to deep (0～180 degree), the cannelure 32 of shallow by being deep to (180～360 degree) more usually on the inner side end of entry table 3, offer (180～360 degree) from shallow to deep that match with cannelure 32, the cannelure 52 of shallow by being deep to (0～180 degree) again on the inner side end of feed disk 5; The distance that any point that has so just guaranteed cannelure 32 bottoms is arrived the respective point of cannelure 52 bottoms vertically equates; Offer the charging aperture 31 that communicates with cannelure 32 on the entry table 3---referring to shown in Figure 2, feed disk 5 is provided with the discharging opening 51 that communicates with cannelure 52---referring to shown in Figure 3, and charging aperture 31 staggers with discharging opening 51 each other---referring to Fig. 6, shown in Figure 7; Extruding disk 4 upper edges circumferentially evenly are furnished with four rectangular through-hole; Be provided with profile of tooth push rod 6 in each rectangular through-hole, leave material passing passage 41 between each profile of tooth push rod 6 and the corresponding rectangular through-hole, and the two ends of all profile of tooth push rods 6 retrained by entry table 3 and feed disk 5; In the present embodiment, the feed disk 5 that plasticizing transports unit I has adopted integral structure with the entry table 3 that, plasticizing transports unit II, and the feed disk 5 that plasticizing transports unit II has adopted integral structure with the entry table 3 that, plasticizing transports unit III.During practical application, entry table 3 and feed disk 5 that plasticizing transports unit I, II and III are separately fixed on three machine barrels 7, and plasticizing transports unit I and goes up device feed hopper 1, has so just constituted a complete compound dynamic plasticizing extruder.
The course of work that above-mentioned plasticizing transports dress is: macromolecular material is when transporting unit I, II and III through plasticizing; The extruding disk 4 that three plasticizings transport in the unit rotates under the drive of power transmission shaft 2, and the both ends of the surface of profile of tooth push rod 6 are constrained in by the medial surface of entry table 3 and feed disk 5 in the rectangular through-hole of extruding disk 4 and axially move back and forth; Ascending, the descending cyclically-varying again of spatial volume that surrounds by inner face and any two adjacent profile of tooth push rods 6 of extruding disk 4 its right end face, entry table 3; When this space was ascending, plasticizing transported the unit by charging aperture 31 chargings, when this space is descending; Macromolecular material is by constantly compacting; In compacting process, macromolecular material is stretched simultaneously and shears, and discharges through the discharging opening 51 of feed disk 5 from the material passing passage 41 of extruding disk 4.So just make the plasticizing of macromolecular material faster, mixed effect is better, and is difficult for degraded.
As shown in Figure 8, complete compound dynamic plasticizing extruder constitutes compound dynamic plasticizing injector with the plunger injection unit and the loading head 10 that mainly are made up of injection cylinder 11, injection ram 12, injection barrel 13 and nozzle 14.Macromolecular material transports unit I, II and III and loading head 10 through feed hopper 1, plasticizing, enters into injection barrel 13, and under the melt pressure effect, injection ram 12 is retreated; When the storing amount in the injection barrel 13 reached the variable of injected articles requirement, complete compound dynamic plasticizing extruder stopped plasticizing, and the plasticizing gage work of injector finishes.Machine to be injected has been accomplished and has been filled after mould, the pressurize operation, and at the goods cooling stage, complete compound dynamic plasticizing extruder begins plasticizing, and injector begins the next product molding cycle.
Claims (2)
1. based on the high polymer material plasticizing feeding device of draft flowing deformation and shear rheology; It is characterized in that comprising and be arranged on that at least one plasticizing transports the unit on the same power transmission shaft; All plasticizings transport the unit serial connection together, and each plasticizing transports the unit and comprises: activity is located in entry table, the feed disk on the power transmission shaft and is fixed on the extruding disk on the power transmission shaft, and extruding disk is between entry table and feed disk; Offer respectively on the inner side end of entry table and feed disk cooperatively interact from shallow to deep, again by being deep to shallow cannelure; Entry table is provided with charging aperture, and feed disk is provided with discharging opening, and charging aperture and discharging opening stagger each other; The extruding disk upper edge circumferentially evenly is furnished with at least three rectangular through-hole; Be provided with the profile of tooth push rod in each rectangular through-hole, leave material passing passage between each profile of tooth push rod and the corresponding rectangular through-hole, and the two ends of all profile of tooth push rods retrained by entry table and feed disk.
2. ask 1 described plasticizing feeding device according to right, it is characterized in that: described extruding disk upper edge circumferentially evenly is furnished with four rectangular through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101444846A CN101628453B (en) | 2009-08-09 | 2009-08-09 | High polymer material plasticizing transportation device based on tension rheology and shear rheology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101444846A CN101628453B (en) | 2009-08-09 | 2009-08-09 | High polymer material plasticizing transportation device based on tension rheology and shear rheology |
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| CN101628453A CN101628453A (en) | 2010-01-20 |
| CN101628453B true CN101628453B (en) | 2012-07-25 |
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| CN2009101444846A Expired - Fee Related CN101628453B (en) | 2009-08-09 | 2009-08-09 | High polymer material plasticizing transportation device based on tension rheology and shear rheology |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108437254B (en) * | 2018-04-26 | 2020-10-20 | 梁树旺 | Blending device for plastic modification |
| CN115008686B (en) * | 2022-06-29 | 2024-04-19 | 宁波佰氏微泡注塑科技有限公司 | Mixer for micro-bubble injection molding device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219565A (en) * | 2008-01-25 | 2008-07-16 | 华南理工大学 | Polymer material plasticizing and transporting method and apparatus based on draft flowing deformation |
| CN201279885Y (en) * | 2008-08-08 | 2009-07-29 | 浙江申达机器制造股份有限公司 | Shearing type charging barrel charge door |
| CN201493971U (en) * | 2009-08-09 | 2010-06-02 | 江苏维达机械有限公司 | Stretching rheology and shear rheology based high polymer material plasticizing transport device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219565A (en) * | 2008-01-25 | 2008-07-16 | 华南理工大学 | Polymer material plasticizing and transporting method and apparatus based on draft flowing deformation |
| CN201279885Y (en) * | 2008-08-08 | 2009-07-29 | 浙江申达机器制造股份有限公司 | Shearing type charging barrel charge door |
| CN201493971U (en) * | 2009-08-09 | 2010-06-02 | 江苏维达机械有限公司 | Stretching rheology and shear rheology based high polymer material plasticizing transport device |
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