CN113119523B

CN113119523B - Processing technology of linear easy-to-tear packaging bag

Info

Publication number: CN113119523B
Application number: CN202110419385.5A
Authority: CN
Inventors: 傅相明
Original assignee: Qingdao Hyde Packaging Co ltd
Current assignee: Qingdao Haide Packaging Co ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2023-01-20
Anticipated expiration: 2041-04-19
Also published as: CN113119523A

Abstract

The application relates to a processing technology of straight line easily tears wrapping bag, it includes step one, prepares material, step two, sets up the cutter, step three, cutting, step four, bag membrane are compound, step five, the wrapping bag is compound, step six, cut the bag, this application has the stable fashioned effect that improves straight line easily tears the wrapping bag.

Description

Processing technology of linear easy-to-tear packaging bag

Technical Field

The application relates to the field of packaging bag preparation, in particular to a processing technology of a linear easy-to-tear packaging bag.

Background

The packaging bag is a bag for packaging various articles, and is widely used in daily life and industrial production. The flexible packing bag is one of packing bags, and is a packing bag in which the shape of a container can be changed after the contents are filled or taken out. A lot of preceding wrapping bags are difficult when the opening, need just can open the wrapping bag with the help of supplementary scissors or blade, adopt the easy structure of tearing of cockscomb structure a bit, however the easy structure of tearing of cockscomb structure is difficult to guarantee the regularity of tearing at the in-process of tearing, often only tears a bit and tears the mouth and just askew fall on one side and go, leads to the fact a lot of difficulties for the user, consequently for guaranteeing the regularity of wrapping bag tearing, the straight line easily tears the wrapping bag again.

The relevant technical literature discloses chinese utility model patent of application number CN201822006529.0, concretely relates to straight line easily tears packaging film and wrapping bag, straight line easily tears the packaging film and comprises four tunic layers, four tunic layers do in proper order: polyethylene terephthalate film layer, aluminium foil film layer, nylon film layer and polypropylene film layer. Wherein the nylon film layer is provided with a linear laser line for tearing the packaging film. When a user tears the packaging film, tearing force can be concentrated on the linear laser line, so that the linear tearing opening is torn, and the packaging film has good sealing performance because the laser line is only arranged on the nylon film layer. The utility model discloses a still provide the wrapping bag that uses above-mentioned packaging film to prepare, possess above advantage equally.

In view of the above-mentioned related technologies, the inventor believes that a straight easily torn line can be formed by using a laser routing technology, but the laser routing equipment of the laser routing technology is high in price and high in equipment damage rate, and needs a large amount of debugging before and after use, which causes great influence on the production stability of the packaging bag.

Disclosure of Invention

In order to improve the stable shaping of straight line easy tear wrapping bag, this application provides a processing technology of straight line easy tear wrapping bag.

The application provides a processing technology of straight line easy tear wrapping bag adopts following technical scheme:

a processing technology of a linear easy-tear packaging bag comprises the following steps:

preparing materials, namely selecting two films as raw materials according to use requirements;

setting cutters, wherein the number of the cutters is set according to the number of the films to be cut, each cutter comprises a cutter disc and positioning discs which are coaxial with the cutter disc and are respectively arranged on two sides of the cutter disc, the radius of each cutter disc is larger than that of each positioning disc, and the difference between the radiuses of the cutter discs and the positioning discs is smaller than the thickness of the corresponding film to be cut;

cutting, namely driving a cutter disc to pass along the width direction of the film in the film conveying process, and ensuring that a positioning disc tightly presses one side of the film to be cut in the cutter disc cutting process, so that a cutting groove with the depth smaller than the thickness of the film is formed in one side of the film;

step four, compounding the bag film, namely compounding one side of each of the two films, which is not provided with the cutting groove, to form the bag film;

step five, compounding the packaging bags, namely taking the two bag films, enabling the cutting grooves of the two bag films to correspond in position, and compounding the side edges of the bag films;

and step six, cutting the bag, namely cutting the bag film to form a bag body.

Through adopting above-mentioned technical scheme, in bag membrane preparation in-process, the grooving of an at least raw materials film of double-deck compound bag membrane, then correspond the grooving position of two bag membranes, compound into the bag body with the bag membrane, can make the both sides of the bag body all form the grooving, and can not make the bag body break, and when tearing the bag body, because the setting of bag membrane grooving in bag body both sides, can guarantee that the tearing notch of the bag body is neatly torn along the grooving direction of two bag membranes, and because the grooving has weakened the intensity that the position was torn to the bag body, the tearing of the bag body is also more convenient, the shaping is convenient stable, the high quality of the bag body.

Optionally, during material preparation, a high-barrier film and a non-high-barrier film are selected as raw materials,

when the cutter is arranged, the difference between the radius of the cutter disc and the radius of the cutter is smaller than the thickness of the non-high-resistance diaphragm;

during cutting, when the non-high-resistance diaphragm is conveyed, a cutting groove is cut on the non-high-resistance diaphragm through a cutter;

when the bag film is compounded, compounding one side of the non-high barrier film provided with the cutting groove, which is far away from the cutting groove, with the high barrier film to form the bag film;

when the packaging bags are compounded, the two bag films are oppositely arranged at the side provided with the cutting groove, and then the two bag films are compounded and cut to form the packaging bags.

By adopting the technical scheme, during the use, select for use high barrier film and non-high barrier film as the raw materials, then to non-high barrier film scribing grooving and with non-high barrier film and high barrier film complex formation bag membrane to make one side of bag membrane spout set up the composite bag body relatively, can make the bag body outward appearance after the shaping unchangeable, and do not damage the high barrier performance of the bag body, and guarantee that the tearing mouth of the bag body is the straight line setting when the bag body is torn.

Optionally, in the second step, a cutter is arranged, and a cutter is arranged, wherein the cutter comprises a cutter disc and positioning discs which are coaxial with the cutter disc and are respectively arranged on two sides of the cutter disc, the radius of the cutter disc is greater than that of the positioning discs, and the difference between the radiuses of the cutter disc and the positioning discs is smaller than the thickness of the corresponding film to be cut;

cutting, namely driving a cutter disc to pass along the width direction of the film in the conveying process of the film, and ensuring that a positioning disc is tightly pressed on one side of the film to be cut in the cutting process of the cutter disc, so that a cutting groove with the depth smaller than the thickness of the film is formed on one side of the film;

and step four, bag film compounding, namely keeping the film provided with the cutting groove to stop conveying, and enabling the other film to approach the direction close to the film provided with the cutting groove, so that the side, away from the cutting groove, of the film not provided with the cutting groove is compounded with the other film.

By adopting the technical scheme, after the film is cut, the transmission of the film is stopped, the film which is not cut into the groove is attached to the film which is cut into the groove, the compounding of the two films is completed, the strength of the film which is cut into the groove is prevented from being reduced after the groove is cut, the film which is cut into the groove is prevented from being torn in the compounding process, and the compounding stability of the bag film is further ensured.

Optionally, film conveying adopts transfer unit in the third step, transfer unit includes the mount, the one end of mount is rotated and is connected with the conveying roller, and the other end of mount rotates and is connected with the discharge roller, the middle part level of mount is provided with the cutting bed of upper surface and last conveying roller outer fringe upside parallel and level, the top level that the mount corresponds the cutting bed is provided with can follow the rolling axis of rotation of perpendicular to film direction of delivery, blade disc and positioning disk are fixed in the axis of rotation blade disc, positioning disk and axis of rotation coaxial line set up.

Through adopting above-mentioned technical scheme, the during operation, the last conveying roller that will pass through the mount tip of waiting to cut film conveys the cutting bed upside and conveys out the cutting bed by the discharge roller, and after waiting to cut the cutting position motion of film to the cutting bed, the discharge roller stall, the film stops the conveying, moves along the direction of transfer of perpendicular to film through the axis of rotation, can drive positioning disk and blade disc and roll from the upside of film along film width direction and cross, realizes the cutting of film cutting groove.

Optionally, an air exhaust cavity is arranged in the cutting table, and a plurality of air holes are formed in the surface of the cutting table, corresponding to two sides of the cutting path of the cutter disc.

Through adopting above-mentioned technical scheme, when the film sent to the cutting platform, mutually support through a plurality of exhaust chambers and a plurality of wind holes, can adsorb the film in the upper surface of cutting bed to make the film hug closely in the cutting bed, guarantee the accurate cutting of film.

Optionally, the circumferential surfaces of the upper conveying roller and the lower conveying roller are symmetrically provided with spiral rubber strips by taking the middle part of the circumferential surfaces in the axial direction as a center.

Through adopting above-mentioned technical scheme, when the film was carried on last conveying roller or lower conveying roller, because the symmetry sets up in the global spiral rubber strip of last conveying roller and lower conveying roller, can play the flat effect of exhibition to the film when the film conveying, guarantee the smooth conveying of film.

Optionally, the cutting table slides along the direction of transfer of film and connects in the mount, the one end rotation that the conveying roller was kept away from to the cutting bed is connected with the last compression roller the same with last conveying roller axis direction, go up the upside that the compression roller can the butt transmit out the film on the cutting bed, the downside rotation that the cutting bed corresponds the compression roller is connected with the lower compression roller the same with last compression roller axis direction, the downside rotation that the mount corresponds the conveying roller is connected with the lower conveying roller the same with last conveying roller axis direction, the cutting bed corresponds the position rigid coupling between compression roller and the lower compression roller and has the glue spraying pipe, the upper and lower both sides of glue spraying pipe all are provided with spouts the jiao kou, be provided with the reciprocating mechanism that can drive cutting bed reciprocating motion on the mount.

By adopting the technical scheme, one end of a film to be cut is conveyed to the upper side of a cutting table from the upper side of an upper conveying roller and is conveyed out from between an upper pressure roller and a lower pressure roller in a normal state, the other film is conveyed from the upper side of the lower conveying roller and passes through the lower side of the cutting table and is conveyed out from between the upper pressure roller and the lower pressure roller, when the film conveyed out from the upper conveying roller passes through the cutting table, after a cutting groove is cut on the upper side of the film through a cutter disc, a reciprocating mechanism drives the cutting table to move towards the direction of the upper conveying roller, the upper pressure roller, the lower pressure roller and a glue spraying pipe can be simultaneously driven to move towards the direction of the upper conveying roller synchronously through the cutting table, meanwhile, the glue spraying pipe is opened, the discharge roller stops rotating along with the sliding of the cutting table, the two films stop conveying, the glue spraying pipe slides along with the cutting table to spray glue to films on the upper side and the lower side, the upper pressing roller and the lower pressing roller are pressed to be close to one side of the two films after glue spraying, the two films are compounded into a bag film, then the reciprocating mechanism pushes the cutting table to reset, meanwhile, the film to be cut and the film not to be cut are conveyed continuously, the bag film can be formed and grooved by repeating the steps, the strength of the film is reduced after grooving, but in the compounding process of the bag film, the film after cutting is kept still and is not pulled, and after the film after grooving is compounded with the other film, the bag film after compounding is driven by the discharging roller to convey, so that the conditions that the film after grooving is not fractured in the compounding process can be guaranteed, and compounding of the bag film is guaranteed.

Optionally, heating devices are arranged in both the upper pressing roller and the lower pressing roller.

Through adopting above-mentioned technical scheme, the heating device who adopts can heat last compression roller and lower compression roller to make last compression roller and lower compression roller improve the heat, and then make two films compound fast.

In summary, the present application includes at least one of the following beneficial technical effects:

1. in the bag film preparation process, at least one raw material film of the double-layer composite bag film is subjected to groove cutting, then the groove cutting positions of the two bag films are corresponding, the bag films are compounded into a bag body, the groove cutting can be formed on the two sides of the bag body, the bag body cannot be broken, when the bag body is torn, the arrangement of the groove cutting of the bag films on the two sides of the bag body can ensure that the tearing opening of the bag body is torn orderly along the groove cutting direction of the two bag films, and the strength of the tearing position of the bag body is weakened by the groove cutting, so that the bag body is torn more conveniently, the forming is convenient and stable, and the quality of the bag body is high;

2. when the bag is used, the high-resistance membrane and the non-high-resistance membrane are selected as raw materials, then the non-high-resistance membrane is cut into a groove and then is compounded with the high-resistance membrane to form a bag membrane, and the compound bag body is oppositely arranged on one side of the bag membrane chute, so that the appearance of the formed bag body is unchanged, the high-resistance performance of the bag body is not damaged, and the tearing opening of the bag body is ensured to be linearly arranged when the bag body is torn;

3. after the film is cut, the transmission of the film is stopped, another film which is not cut into the groove is attached to the film which is cut into the groove, the compounding of the two films is completed, the strength of the film which is provided with the groove can be prevented from being reduced after the groove is cut, the film which is cut into the groove is prevented from being torn in the compounding process, and the compounding stability of the bag film is further ensured.

Drawings

Fig. 1 is a process flow diagram of a processing process of a linear easy-tear packaging bag according to the present application.

Fig. 2 is an exploded view of a middle cutter structure of a process for manufacturing a linear easy-tear package of the present application.

Fig. 3 is a schematic view of the overall structure of a conveying member according to a third embodiment of the processing technology of the linear tearable package of the present application.

Fig. 4 is a schematic view of the overall structure of the cutting table of the third embodiment of the processing technology of the linear easy-tear packaging bag of the present application.

Fig. 5 is a schematic structural diagram of a glue spraying tube according to a third embodiment of the processing technology of the linear easy-tear packaging bag of the present application.

Description of the reference numerals:

1. a cutter; 11. a cutter head; 12. positioning a plate; 2. a fixed mount; 21. an upper conveying roller; 22. a lower conveying roller; 23. a discharging roller; 24. a helical rubber strip; 25. a receiving frame; 251. a chute; 253. a rack; 26. a rotating shaft; 261. a bearing ring; 262. a gear; 27. a pushing cylinder; 28. a reciprocating cylinder; 3. cutting the table; 31. air holes; 32. an upper compression roller; 33. a lower press roll; 34. spraying a rubber pipe; 35. and (5) spraying glue ports.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a processing technology of a linear easy-tear packaging bag.

Example 1

Referring to fig. 1 and 2, a processing technology of a linear easy-tear packaging bag comprises the following steps:

preparing materials, namely selecting two films as raw materials, wherein the films can be made of the same material or different materials, such as a PE (polyethylene) film or a nylon film, a PET (polyethylene terephthalate) film, a CPP (casting polypropylene) film, an OPP (oriented polypropylene) film and the like;

step two, setting a cutter 1, setting two cutters 1, wherein each cutter 1 comprises a cutter head 11 and positioning disks 12 coaxially arranged on two sides of the cutter head 11, the radius of the cutter head 11 is larger than that of the positioning disks 12, and the difference between the radius of the cutter head 11 of each cutter 1 and the radius of the corresponding positioning disk 12 is respectively smaller than the thickness of two films;

step three, cutting marks, namely loading the two films on a conveying part of the compound equipment at the same time, respectively arranging two cutters 1 at one side of the conveying part of the two films, respectively pressing a positioning disc 12 of the corresponding cutter 1 to the corresponding film when the two films are conveyed to the positions of the corresponding cutters 1, rolling along the conveying direction vertical to the films through a cutter disc 11 and the positioning disc 12, realizing the cutting of the cutter disc 11 along the width direction of the films, and respectively forming linear cutting grooves on the two films;

step four, compounding bag films, namely gluing the sides of the two films, which are not provided with the cutting grooves, respectively, and then compounding the glued sides of the two films to form the bag films;

step five, compounding the packaging bags, namely simultaneously conveying the two compounded bag films to packaging bag compounding equipment, correspondingly setting positions of the two bag films, which are provided with cutting grooves, compounding the positions of the two sides of the two bag films, and compounding the two bag films along the width direction of the two bag films along with the conveying of the two bag films to form a plurality of bag body areas which are sequentially connected end to end, wherein one end of each bag body area is provided with a cutting groove;

and step six, cutting the bags, namely cutting the two compounded bag films along the two end positions of each bag body area to form a plurality of straight-line easy-to-tear packaging bags.

The implementation principle of the embodiment 1 is as follows: in the bag membrane preparation process, at least one raw material film grooving of double-deck compound bag membrane, then correspond the grooving position of two bag membranes, compound into the bag body with the bag membrane, can make the both sides of the bag body all form the grooving, and can not make the bag body break, and when tearing the bag body, because the setting of bag membrane grooving in bag body both sides, can guarantee that the tearing notch of the bag body is neatly torn along the grooving direction of two bag membranes, and because the grooving has weakened the intensity that the position was torn to the bag body, the tearing of the bag body is also more convenient, the shaping is convenient stable, the high quality of the bag body.

Example 2

preparing materials, namely selecting a high-resistance membrane and a non-high-resistance membrane as raw materials;

step two, setting a cutter 1, namely setting the cutter 1, wherein the cutters 1 respectively comprise a cutter disc 11 and positioning discs 12 coaxially arranged on two sides of the cutter disc 11, the radius of the cutter disc 11 is larger than that of the positioning discs 12, and the difference between the radius of the cutter disc 11 and the radius of the positioning discs 12 is smaller than the thickness of two non-high-resistance diaphragms;

step three, grooving, namely loading the high-resistance diaphragm and the non-high-resistance diaphragm on a conveying part of the composite equipment, loading the cutter 1 on one side of the conveying position of the non-high-resistance diaphragm, pressing the positioning disc 12 on one side of the film to be non-high-resistance diaphragm when the non-high-resistance diaphragm is conveyed to the position of the cutter 1, rolling along the conveying direction vertical to the non-high-resistance diaphragm through the cutter disc 11 and the positioning disc 12, realizing that the cutter disc 11 cuts along the width direction of the non-high-resistance diaphragm, and forming a linear cutting groove on the non-high-resistance diaphragm;

step four, compounding a bag film, namely gluing one side of the cut non-high-resistance diaphragm, which is far away from the cutting groove, with one side of the high-resistance diaphragm, and then compounding the high-resistance diaphragm and the non-high-resistance diaphragm to form the bag film;

step five, compounding the packaging bags, namely simultaneously conveying the two compounded bag films to packaging bag compounding equipment, enabling the sides of the two bag films, which are provided with cutting grooves, to be oppositely arranged, enabling the cutting grooves of the two bag films to be correspondingly arranged, compounding the positions of the two side edges of the two bag films, and compounding the two side edges along the width direction of the two bag films along with the conveying of the two bag films to form a plurality of bag body areas which are sequentially connected end to end, and enabling one end of each bag body area to be provided with a cutting groove;

The implementation principle of the embodiment 2 is as follows: when the bag is used, the high-barrier film and the non-high-barrier film are selected as raw materials, then the non-high-barrier film is cut into the cutting grooves and then the non-high-barrier film and the high-barrier film are compounded to form the bag film, the composite bag body is oppositely arranged on one side of the bag film sliding groove 251, the appearance of the formed bag body is not changed, the high-barrier performance of the bag body is not damaged, and the tearing opening of the bag body is ensured to be linearly arranged when the bag body is torn.

In the case of the embodiment 3, the following examples,

step two, arranging cutters 1, namely arranging the cutters 1, wherein each cutter 1 comprises a cutter head 11 and positioning discs 12 coaxially arranged on two sides of the cutter head 11, the radius of the cutter head 11 is larger than that of the positioning disc 12, and the difference between the radius of the cutter head 11 and the radius of the positioning disc 12 is smaller than the thickness of a film;

step three, grooving, namely loading two films on a conveying part of the composite equipment, loading a cutter 1 on one side of a conveying position of the film to be cut, conveying the two films simultaneously, stopping conveying the two films when the film to be cut is conveyed to the position of the cutter 1, pressing a positioning disc 12 on one side of the film to be cut, rolling the cutter 11 and the positioning disc 12 along the conveying direction vertical to the film to be cut, cutting the cutter 11 along the width direction of the film to be cut, and forming a linear cutting groove on the film to be cut;

step four, compounding bag films, namely keeping the film provided with the cutting groove static, gluing one side of the cut film, which is far away from the cutting groove, with one side of the other film, keeping the film provided with the cutting groove stopped from conveying, approaching the other film to the direction close to the film provided with the cutting groove, and compounding one side of the film, which is not provided with the cutting groove, which is far away from the cutting groove, with the other film to form the bag film;

step five, compounding the packaging bags, namely simultaneously conveying the two compounded bag films to packaging bag compounding equipment, enabling the sides, provided with the cutting grooves, of the two bag films to be oppositely arranged, enabling the cutting groove positions of the two bag films to be correspondingly arranged, compounding the two side edges of the two bag films, and compounding the two side edges along the width direction of the two bag films along with the conveying of the two bag films to form a plurality of bag body areas which are sequentially connected end to end, and enabling one end of each bag body area to be provided with the cutting groove;

Referring to fig. 3 and 4, wherein, the conveying component of step three includes a fixing frame 2, one end of the fixing frame 2 is rotatably connected with an upper conveying roller 21, the lower side of the fixing frame 2 corresponding to the upper conveying roller 21 is rotatably connected with a lower conveying roller 22 which is the same as the axis direction of the upper conveying roller 21, one end of the fixing frame 2 far away from the upper conveying roller 21 and the lower conveying roller 22 is rotatably connected with two discharging rollers 23, the two discharging rollers 23 are arranged along the vertical direction, a discharging gap is reserved between the two discharging rollers 23, one end of the fixing frame 2 corresponding to the lower discharging roller 23 is fixedly connected with a driving motor, and the circumferential surfaces of the upper conveying roller 21 and the lower conveying roller 22 are symmetrically provided with spiral rubber strips 24 by taking the middle part of the axis direction as the center. The middle part of mount 2 is provided with the composite set of grooving, and when two film grooving were compound, the upside from last conveying roller 21 and lower conveying roller 22 was conveyed respectively, and the compound back of grooving through the composite set of grooving conveys out from discharge roller 23, and when the film was carried on last conveying roller 21 or lower conveying roller 22, owing to the symmetry set up in the global spiral rubber strip 24 of last conveying roller 21 and lower conveying roller 22, can play the flat effect of exhibition to the film when the film conveying, guarantees the smooth conveying of film.

Referring to fig. 4 and 5, the grooving composite device comprises a cutting table 3 fixedly connected to the middle of the fixing frame 2, the cutting table 3 is horizontally arranged, the upper surface of the cutting table is flush with the upper side of the outer edge of the upper conveying roller 21, an air suction cavity is arranged in the cutting table 3, and a plurality of air holes 31 are formed in the two sides of the surface of the cutting table 3, which correspond to the cutting path of the cutter head 11. Mount 2 corresponds the top level of cutting bed 3 and is provided with accepts frame 25, the length direction who accepts frame 25 is the same with the width direction of mount 2, and accept the both sides of frame 25 and all seted up spout 251 along its length direction, the interpolation of two spouts 251 is equipped with axis of rotation 26, the length direction perpendicular to that accepts frame 25 of axis of rotation 26, the one end of axis of rotation 26 is rotated and is connected with and accepts ring 261, the other end of axis of rotation 26 is bolted connection still has gear 262, the downside rigid coupling that accepts frame 25 corresponds gear 262 has and accepts the same rack 253 of frame 25 length direction, gear 262 meshes in rack 253. One end of the bearing frame 25 is fixedly connected with a pushing cylinder 27 which has the same length direction as the bearing frame 25, the telescopic rod of the pushing cylinder 27 is fixedly connected with the bearing ring 261, the cutter head 11 and the positioning disk 12 are connected with the rotating shaft 26 through bolts, and the cutter head 11, the positioning disk 12 and the rotating shaft 26 are coaxially arranged. After the film to be cut is conveyed to the cutting table 3, the discharging roller 23 stops rotating, the pushing cylinder 27 drives the telescopic rod to extend, the bearing ring 261 can be driven to slide along the length direction of the bearing frame 25, meanwhile, the bearing shaft can also roll in the moving process through the matching of the gear 262 and the rack 253, and then the positioning disc 12 and the cutter disc 11 are driven to roll from the upper side of the film along the width direction of the film, so that the cutting of a film cutting groove is realized. And when the film sent to cutting table 3, mutually supporting through a plurality of exhaust chambeies and a plurality of wind hole 31, can adsorb the film in the upper surface of cutting table 3 to make the film hug closely in cutting table 3, guarantee the accurate cutting of film.

Referring to fig. 4 and 5, the cutting table 3 slides along the length direction of the fixed frame 2, a reciprocating mechanism capable of driving the cutting table 3 to reciprocate is arranged on the fixed frame 2, the reciprocating mechanism comprises a reciprocating cylinder 28 fixedly connected to the fixed frame 2, the axial direction of the reciprocating cylinder 28 is the same as the length direction of the fixed frame 2, and the telescopic rod of the reciprocating cylinder 28 is fixedly connected to the cutting table 3. The one end rotation that the upper conveying roller 21 was kept away from to cutting table 3 is connected with the last compression roller 32 the same with upper conveying roller 21 axis direction, and last compression roller 32 can butt the upside of the film of conveying on cutting table 3, and cutting table 3 corresponds the downside rotation of last compression roller 32 and is connected with the lower compression roller 33 the same with last compression roller 32 axis direction, all is provided with heating device in last compression roller 32 and the lower compression roller 33, and heating device can be the electric bar. The cutting table 3 is fixedly connected with a glue spraying pipe 34 corresponding to the position between the upper press roll 32 and the lower press roll 33, glue spraying openings 35 are formed in the upper side and the lower side of the glue spraying pipe 34, and the glue spraying pipe 34 can be connected with external glue spraying equipment.

Referring to fig. 4 and 5, in a normal state, one end of the film to be cut is fed from the upper side of the upper feed roller 21 to the upper side of the cutting station 3 and is transferred out by the upper and lower press rollers 32 and 33, and the other film is fed from the upper side of the lower feed roller 22 and passes through the lower side of the cutting station 3 and is transferred out by the upper and lower press rollers 32 and 33, and when the film transferred from the upper feed roller 21 passes through the cutting station 3, after the cutting groove is cut on the upper side of the film by the cutter 1, the reciprocating mechanism drives the cutting table 3 to move towards the direction of the upper conveying roller 21, the upper pressing roller 32, the lower pressing roller 33 and the glue spraying pipe 34 can be simultaneously driven by the cutting table 3 to synchronously move towards the direction of the upper conveying roller 21, meanwhile, the glue spraying pipe 34 is opened, the discharge roller 23 stops rotating along with the sliding of the cutting table 3, the two films stop conveying, the glue spraying pipe 34 sprays glue to the upper and lower films along with the sliding of the cutting table 3, the upper press roller 32 and the lower press roller 33 compress the two films close to each other after glue spraying, so that the two films are compounded into a bag film, then, the reciprocating mechanism pushes the cutting table 3 to reset, simultaneously, the film to be cut and the uncut film are continuously conveyed, the steps are repeated to realize the forming and grooving of the bag film, because the strength of the film is reduced after grooving, but in the compounding process of the bag film, the cut film is kept still and is not pulled, after the grooved film is compounded with another film, the compounded bag film is driven to be conveyed by the discharging roller 23, so that the grooved film can not be broken and the like in the compounding process, ensures the compounding of the bag film, and in addition, the adopted heating device can heat the upper pressing roller 32 and the lower pressing roller 33, thereby increasing the heat of the upper press roll 32 and the lower press roll 33 and further enabling the two films to be rapidly compounded.

The implementation principle of embodiment 3 of the application is as follows: after the film is cut, the transmission of the film is stopped, another film which is not cut into the groove is attached to the film which is cut into the groove, the compounding of the two films is completed, the strength of the film which is provided with the groove can be prevented from being reduced after the groove is cut, the film which is cut into the groove is prevented from being torn in the compounding process, and the compounding stability of the bag film is further ensured.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The processing technology of the linear easy-tear packaging bag is characterized by comprising the following steps:

secondly, setting cutters (1), wherein the number of the cutters (1) is set according to the number of the films to be cut, each cutter (1) comprises a cutter disc (11) and positioning discs (12) which are coaxial with the cutter disc (11) and are respectively arranged on two sides of the cutter disc (11), the radius of each cutter disc (11) is larger than that of each positioning disc (12), and the difference between the radiuses of the cutter disc (11) and the positioning discs (12) is smaller than the thickness of the corresponding film to be cut;

cutting, namely driving a cutter disc (11) to pass along the width direction of the film in the conveying process of the film, and ensuring that a positioning disc (12) is tightly pressed on one side of the film to be cut in the cutting process of the cutter disc (11), so that a cutting groove with the depth smaller than the thickness of the film is formed on one side of the film;

keeping the film provided with the cutting groove stopped from conveying, and enabling the other film to approach to the film provided with the cutting groove in a direction close to the film, so that the side, away from the cutting groove, of the film not provided with the cutting groove is compounded with the other film;

step six, cutting the bag, namely cutting the bag film to form a bag body;

the film conveying in the third step adopts a conveying component, the conveying component comprises a fixing frame (2), one end of the fixing frame (2) is rotatably connected with an upper conveying roller (21), the other end of the fixing frame (2) is rotatably connected with a discharging roller (23), a cutting table (3) with the upper surface parallel to the upper side of the outer edge of the upper conveying roller (21) is horizontally arranged in the middle of the fixing frame (2), a rotating shaft (26) capable of rolling along the direction perpendicular to the film conveying direction is horizontally arranged above the fixing frame (2) corresponding to the cutting table (3), and the cutter head (11) and the positioning disc (12) are fixed on the rotating shaft (26), the cutter head (11), the positioning disc (12) and the rotating shaft (26) and are coaxially arranged;

cutting bed (3) are slided along the direction of delivery of film and are connected in mount (2), the one end rotation that last conveying roller (21) was kept away from in cutting bed (3) is connected with last compression roller (32) the same with last conveying roller (21) axis direction, the upside that delivers the film on cutting bed (3) can butt in last compression roller (32), the downside rotation that cutting bed (3) correspond compression roller (32) is connected with and pushes down roller (33) the same with last compression roller (32) axis direction, the downside rotation that fixing bed (2) correspond last conveying roller (21) is connected with and pushes down conveying roller (22) the same with last conveying roller (21) axis direction, position rigid coupling between compression roller (32) and lower compression roller (33) is corresponded in cutting bed (3) has glue spraying pipe (34), the upper and lower both sides of glue spraying pipe (34) all are provided with glue spraying mouth (35), be provided with the reciprocating mechanism that can drive cutting bed (3) reciprocating motion on mount (2).

2. The processing technology of the linear easy-tear packaging bag according to claim 1, characterized in that: in the first step, a high-resistance diaphragm and a non-high-resistance diaphragm are selected as raw materials,

step two, the difference between the radius of the cutter head (11) and the radius of the cutter (1) is smaller than the thickness of the non-high-resistance diaphragm;

cutting a cutting groove on the non-high-resistance diaphragm by the cutter (1) when the non-high-resistance diaphragm is conveyed;

compounding one side, far away from the cutting groove, of the non-high-barrier thin film provided with the cutting groove with a high-barrier film to form a bag film;

and step five, oppositely arranging the sides of the two bag films, which are provided with the cutting grooves, and then carrying out composite cutting on the two bag films to form the packaging bag.

3. The processing technology of the linear easy-tear packaging bag according to claim 1, characterized in that: an air exhaust cavity is arranged in the cutting table (3), and a plurality of air holes (31) are formed in the surface of the cutting table (3) corresponding to the two sides of the cutting path of the cutter head (11).

4. The processing technology of the linear easy-tear packaging bag according to claim 1, characterized in that: the circumferential surfaces of the upper conveying roller (21) and the lower conveying roller (22) are symmetrically provided with spiral rubber strips (24) by taking the middle parts of the circumferential surfaces in the axial direction as centers.

5. The processing technology of the linear easy-tear packaging bag according to claim 1, characterized in that: heating devices are arranged in the upper pressing roll (32) and the lower pressing roll (33).