A double-sided film laminating device for food packaging bag processing

Abstract

The application discloses a food packaging bag processing double-sided film compounding device, relates to the field of food packaging, and solves the problems of complex film pasting of food packaging paper and inconvenience in cutting food packaging bags according to different food shapes. The food packaging bag processing double-sided film compounding device comprises a workbench and a vertical tool plate, the top end of the workbench is provided with the vertical tool plate, one end of one side of the vertical tool plate is provided with a first film gluing structure, the first film gluing structure is a film gluing structure, the other end of the one side of the vertical tool plate is provided with a second film gluing structure, one side of the top end of the workbench is provided with a processing base structure, and one side of the processing base structure is provided with a food film cutting structure. The food film cutting structure cuts the film. In the application, double-sided synchronous gluing and compounding are realized through an S-shaped path, the defects of traditional single-sided compounding needing multiple operations are avoided, and the glue solution can automatically flow out in the packaging paper transmission process.

Description

Technical Field

[0001] This invention relates to the field of food packaging, specifically to a double-sided film lamination device for processing food packaging bags. Background Technology

[0002] The food packaging bag processing double-sided film laminating device is a device used to simultaneously cover double-sided films on packaging paper substrates. Its core functions include gluing, lamination, cleaning and drying curing.

[0003] A Chinese patent with publication number CN211917866U discloses a food packaging bag preforming device, which includes a discharge device, a tensioning device, and a guiding device in sequence according to the packaging film conveying order. The discharge device, tensioning device, and guiding device are all fixed between two parallel and opposite fixed plates. The tensioning device includes a cooperating fixed tensioning roller and a movable tensioning roller. This invention protects the forming of a food packaging bag; however, this food packaging bag preforming device still has the following drawbacks:

[0004] 1. Traditional food packaging paper uses a design with a single-sided film attached to the surface of the packaging paper. The purpose of the film is to prevent the food from getting damp and to prevent the oil in the food from leaching out and contaminating other items. The traditional film application method is relatively complicated, and the specific workflow includes applying glue, laminating, cleaning and drying and curing.

[0005] 2. In addition, food comes in a variety of shapes. Traditional food packaging bag processing uses a single straight-line cutting method to cut the film during packaging, which easily leads to an overabundance of outer packaging methods, increasing transportation costs. Furthermore, there are situations where the film cannot fit the surface of different types of food, and only a single size of film can be cut. However, food needs to go through two packaging processes during processing: individual packaging and centralized packaging, and different types of food also have different sizes. Summary of the Invention

[0006] The purpose of this invention is to provide a double-sided film lamination device for processing food packaging bags, so as to solve the problems mentioned in the background art.

[0007] The technical solution of the present invention is: a double-sided film laminating device for processing food packaging bags, comprising a workbench and a vertical fixture plate. The vertical fixture plate is installed on the top of the workbench, and a first film coating structure is installed on one end of one side of the vertical fixture plate. The first film coating structure is a film coating process. A second film coating structure is installed on the other end of one side of the vertical fixture plate. A processing base structure is installed on one side of the top of the workbench, and a food film cutting structure is installed on one side of the processing base structure. The food film cutting structure cuts the film. The first film coating structure includes a first motor and a scraper. The first motor is installed on one side of the vertical fixture plate. The first motor drives the scraper to expand and contract through transmission. The food film cutting structure includes a third motor, a film cutting blade, and a circular cutting blade. The third motor is installed on the top of the workbench. The third motor drives the film cutting blade and the circular cutting blade to move and cut the film through transmission.

[0008] Furthermore, a first transmission roller is installed at the output end of the first motor, and a first transmission track is connected to the surface of the first transmission roller. A second transmission roller is provided on one side of the first transmission track, and a transmission roller shaft is installed at one end of the second transmission roller. A straight rail groove is embedded at the end of the transmission roller shaft near the second transmission roller.

[0009] Furthermore, the first adhesive roller passes through the end of the transmission roller shaft away from the second transmission roller, and a fixed circular plate is installed at the end of the first adhesive roller away from the second transmission roller. The surface of the fixed circular plate is inlaid with curved rail grooves, and the number of straight rail grooves and curved rail grooves is the same, and the straight rail grooves and straight rail grooves are distributed in a ring about the center of the transmission roller shaft.

[0010] Furthermore, the straight rail chute is equipped with an L-shaped transmission rod inside, and one end of the L-shaped transmission rod near the fixed circular plate slides inside the curved rail chute. A scraper is connected to the side of the L-shaped transmission rod away from the transmission roller shaft. A coating groove is provided on the outer side of the transmission roller shaft near the scraper, and the coating groove and scraper are staggered. The coating groove and scraper are arranged in a ring about the axis of the transmission roller shaft. A heating wire is provided at the connection between the transmission roller shaft and the scraper. Furthermore, the second film coating structure includes a second motor, and a third transmission roller is installed at the output end of the second motor. A second transmission track is connected to the surface of the third transmission roller, and a fourth transmission roller is installed on one side of the second transmission track. A second coating roller is installed at one end of the fourth transmission roller.

[0011] Furthermore, the processing base structure includes a processing table, which is installed on the top of the workbench. Four sets of telescopic rods are installed around the four edges of the processing table, and a movable slider is installed at the output end of the telescopic rod. A food positioning fork is installed at the end of the movable slider that is close to the processing table.

[0012] Furthermore, the food film cutting structure includes a support frame, which is installed at the top of the workbench near the processing base structure. A third motor is installed on one side of the top of the support frame. A transmission disk is installed at the output end of the third motor, and a fourth motor is installed on one side of the bottom end of the transmission disk. A transmission threaded rod is installed at the output end of the fourth motor, and a movable slider is sleeved on one end of the transmission threaded rod. The movable slider and the transmission threaded rod are driven by threads.

[0013] Furthermore, the bottom end of the movable slider is hinged to a second limiting rail, and a cross-shaped bidirectional slider is provided at the middle position of the second limiting rail. The support frame is equipped with a first limiting rail at one end near the second limiting rail, and the first limiting rail and the second limiting rail are connected by a cross-shaped bidirectional slider.

[0014] Furthermore, a fifth motor is installed at the end of the second limiting rail away from the movable slider, and a film cutter is installed at the output end of the fifth motor. A hinged cone is hinged to the four periphery of the film cutter near the end of the fifth motor, and an elastic element is installed on the side of the hinged cone away from the hinge and near the film cutter. A one-way internal toothed ring is installed at the top of the film cutter, and the connection between the one-way internal toothed ring and the film cutter is slidably connected. A circular cutter is installed at the bottom end of the one-way internal toothed ring.

[0015] Furthermore, a drying plate is provided at the connection between the vertical tooling plate and the processing base structure, and anti-direct-blow hot air blowers are installed on both sides of the bottom end of the drying plate. The anti-direct-blow hot air blowers are installed at the top of the workbench. Multiple sets of heating rollers are installed on one side of the vertical tooling plate.

[0016] This invention provides an improved double-sided film lamination device for processing food packaging bags, which has the following improvements and advantages compared with the prior art:

[0017] Firstly, the main improvement of this device lies in the design of the automatic coating roller in the double-sided coating mechanism. It achieves simultaneous double-sided coating and lamination via an S-shaped path, avoiding the drawbacks of traditional single-sided lamination requiring multiple operations. Firstly, coating grooves are evenly arranged on the surface of the first coating roller, and the scraper plate contains an L-shaped transmission rod and a heating wire. When the film contacts the first coating roller, the first motor drives the transmission roller shaft to rotate, moving the film and simultaneously rotating the transmission roller shaft. The transmission roller shaft drives the L-shaped transmission rod inside the straight rail groove to move along the trajectory where the curved and straight rail grooves overlap, achieving the expansion and contraction of the scraper plate. The pressure of the first coating roller is adjusted by the L-shaped transmission rod and the alignment of the straight and curved rail grooves, ensuring a tight bond between the film and the substrate. When the scraper plate moves away from the coating groove, the adhesive flows out from the gap between the coating groove and the scraper plate, and is evenly applied to the film surface by the scraper plate. Furthermore, the heating wire embedded in the scraper plate prevents the adhesive from solidifying, improving coating stability and lamination strength.

[0018] Furthermore, the internal parts of the second film coating structure are the same as those of the first film coating structure. It uses a double roller configuration with rollers arranged symmetrically on both sides for coating. The rollers are divided into a first coating roller and a second coating roller. The base film passes between the two rollers in an S-shaped path to achieve synchronous coating on both sides. In addition, the first coating roller and the second coating roller rotate in opposite directions. They are controlled independently by two motors to reduce the deviation caused by the meshing transmission.

[0019] Secondly, by activating the movable slider on the processing table, the food positioning fork is pushed towards the processing table to fix the food to be packaged. Then, the third motor is activated to drive the transmission plate to rotate. The transmission plate rotates through the transmission threaded rod, which in turn drives the movable slider to move through the threaded transmission. This adjusts the eccentric distance of the movable slider on the transmission plate when the third motor rotates. The larger the distance, the larger the circular film to be cut. Then, the second limit rail moves the film cutting blade away from the movable slider to cut the film. The first and second limit rails are used for limiting movement. Then, the fifth motor is activated to drive the film cutting blade to rotate. The film cutting blade cuts the film. In addition, when the fifth motor reverses, the elastic element pushes the hinged cone block to engage with the toothed ring inside the one-way internal toothed ring. At this time, the rotation of the fifth motor can drive the circular cutting blade to cut the film of the same size as the circular cutting blade. The circular cutting blade can be replaced according to the size of the food. The function of the circular cutting blade is to facilitate the cutting of individually packaged small, single circular foods. With replaceable circular cutting blades and movable sliders that can adjust the size of the cut circle, it can flexibly adapt to foods of different sizes and shapes. Attached Figure Description

[0020] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0022] Figure 2 This is a three-dimensional exploded view of the present invention;

[0023] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0024] Figure 4 This is a first exploded perspective view of the first coating roller of the present invention;

[0025] Figure 5 This is a second exploded perspective view of the first coating roller of the present invention;

[0026] Figure 6 This is a first exploded view of the food film cutting structure and processing base structure of the present invention;

[0027] Figure 7 This is a second exploded view of the food film cutting structure and processing base structure of the present invention;

[0028] Figure 8 This is a first three-dimensional enlarged schematic diagram of the food film cutting structure of the present invention;

[0029] Figure 9 This is a second enlarged perspective view of the food film cutting structure of the present invention;

[0030] Figure 10 For the present invention Figure 9 Enlarged structural diagram at point B;

[0031] Figure 11 For the present invention Figure 9 Enlarged structural diagram at point C.

[0032] Explanation of reference numerals in the attached drawings: 1. Workbench surface; 2. Vertical tooling plate; 3. First film coating structure; 301. First motor; 302. First transmission roller; 303. First transmission track; 304. Second transmission roller; 305. First coating roller; 306. Transmission roller shaft; 307. Fixed circular plate; 308. Curved rail groove; 309. L-shaped transmission rod; 310. Coating trough; 311. Scraper; 312. Heating wire; 313. Straight rail groove; 4. Second film coating structure; 401. Second motor; 402. Third transmission roller; 403. Second transmission track; 404. Fourth transmission roller; 405. Second coating roller; 5. Heating roller shaft; 6. Drying plate; 7. Anti-direct-blow hot air blower; 8. Food film cutting structure; 801. Third motor; 802. Transmission plate; 803. Fourth motor; 804. First limit rail; 805. Second limit rail; 806. Support frame; 807. Transmission threaded rod; 808. Moving slider; 809. Fifth motor; 810. Film cutting knife; 811. One-way internal toothed ring; 812. Hinge cone block; 813. Elastic element; 814. Circular cutting knife; 815. Cross bidirectional slider; 9. Processing base structure; 901. Processing table; 902. Food positioning fork; 903. Telescopic rod; 904. Moving slider. Detailed Implementation

[0033] The following will be combined with the appendix Figures 1 to 11 This invention will be described in detail, and the technical solutions in the embodiments of this invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0034] This invention provides an improved double-sided film laminating device for food packaging bags, comprising a workbench 1 and a vertical tooling plate 2. The vertical tooling plate 2 is installed on the top of the workbench 1, and a first film coating structure 3 is installed on one end of one side of the vertical tooling plate 2. The first film coating structure 3 is for film coating. The main improvement of this device is the design of the automatic coating roller in the double-sided coating mechanism, which realizes simultaneous double-sided coating and lamination through an S-shaped path, avoiding the defects of traditional single-sided lamination that requires multiple operations.

[0035] The first film coating structure 3 includes a first motor 301 and a scraper 311. The first motor 301 is installed on one side of the vertical tooling plate 2. The first motor 301 drives the scraper 311 to expand and contract through transmission. A first transmission roller 302 is installed at the output end of the first motor 301. A first transmission track 303 is connected to the surface of the first transmission roller 302. A second transmission roller 304 is provided on one side of the first transmission track 303. A transmission roller shaft 306 is installed at one end of the second transmission roller 304. When the film contacts the first coating roller 305, the first motor 301 drives the transmission roller shaft 306 to rotate and move the film while simultaneously driving the transmission roller shaft 306 to rotate.

[0036] The transmission roller shaft 306 has a straight rail groove 313 embedded at one end near the second transmission roller 304, and a first glue-applying roller 305 passes through the other end of the transmission roller shaft 306 away from the second transmission roller 304. A fixed circular plate 307 is installed at the other end of the first glue-applying roller 305 away from the second transmission roller 304. The surface of the fixed circular plate 307 is inlaid with a curved rail groove 308. The number of straight rail grooves 313 and curved rail grooves 308 is the same, and the straight rail grooves 313 and the straight rail grooves 313 are distributed in a ring about the center of the transmission roller shaft 306. The transmission roller shaft 306 drives the L-shaped transmission rod 309 inside the straight rail groove 313 to move along the trajectory of the curved rail groove 308 and the straight rail groove 313. The straight rail groove 313 is provided with an L-shaped transmission rod 309 inside, and the end of the L-shaped transmission rod 309 near the fixed circular plate 307 slides inside the curved rail groove 308.

[0037] Among them, the L-shaped transmission rod 309 is connected to a scraper 311 on the side away from the transmission roller shaft 306. The pressure of the first coating roller 305 is adjusted by the L-shaped transmission rod 309 and the straight rail slide 313 and the curved rail slide 308 coinciding and limiting the position, so as to ensure that the film and the substrate are tightly bonded, and to achieve the function of expanding and contracting the scraper 311.

[0038] The transmission roller shaft 306 has a coating groove 310 on the outer side near the scraper 311, and the coating groove 310 and the scraper 311 are staggered. The coating groove 310 and the scraper 311 are arranged in a ring about the axis of the transmission roller shaft 306. When the scraper 311 moves away from the coating groove 310, the glue flows out from the gap between the coating groove 310 and the scraper 311 and is evenly coated on the film surface through the scraper 311.

[0039] A heating wire 312 is provided at the connection between the transmission roller shaft 306 and the scraper plate 311. The heating wire 312 embedded in the scraper plate 311 can prevent the adhesive from solidifying, improve the coating stability, and enhance the composite strength. A second thin-film coating structure 4 is installed at the other end of one side of the vertical tooling plate 2. The second thin-film coating structure 4 includes a second motor 401, and a third transmission roller 402 is installed at the output end of the second motor 401. The surface of the third transmission roller 402 is in contact with a second transmission track 403. A fourth drive roller 404 is mounted on one side of the moving track 403, and a second adhesive roller 405 is mounted on one end of the fourth drive roller 404. Furthermore, the internal parts of the second film adhesive coating structure 4 and the first film adhesive coating structure 3 are identical. Adhesive coating is achieved through a symmetrical arrangement of upper and lower rollers, consisting of a first adhesive roller 305 and a second adhesive roller 405. The base film passes between the two rollers in an S-shaped path, achieving simultaneous double-sided adhesive coating. Additionally, the first adhesive roller 305 and the second adhesive roller 405 rotate in opposite directions. The independent control of dual motors reduces deviations caused by gear transmission. A processing base 9 is installed on one side of the top of the worktable 1. The processing base 9 includes a processing table 901, which is installed on the top of the worktable 1. Four sets of telescopic rods 903 are installed around the four edges of the processing table 901. A movable slider 904 is installed at the output end of the telescopic rod 903. A food positioning fork 902 is installed at the end of the movable slider 904 near the processing table 901. By activating the processing table 901 and moving the movable slider 904, the food positioning fork 902 is pushed towards the processing table 901, thus fixing the food to be packaged. A food film cutting structure 8 is installed on one side of the processing base 9. The food film cutting structure 8 cuts the film. For round pastries that cannot be cut to fit the outer edge of the pastry, the wrap-around cutting method of this device not only saves film costs, but also reduces the air stored inside when used to fit round pastries, which can reduce the packaging size, increase the quantity of a single shipment, and reduce transportation costs.

[0040] The food film cutting structure 8 includes a third motor 801, a film cutting blade 810, and a circular cutting blade 814. The third motor 801 is installed at the top of the worktable 1. The third motor 801 drives the film cutting blade 810 and the circular cutting blade 814 to move and cut the film through transmission. The food film cutting structure 8 includes a support frame 806. The support frame 806 is installed at the top of the worktable 1 near the processing base 9. The third motor 801 is installed on one side of the top of the support frame 806.

[0041] The third motor 801 has a transmission disk 802 installed at its output end, and a fourth motor 803 is installed on one side of the bottom of the transmission disk 802. The output end of the fourth motor 803 has a transmission threaded rod 807 installed. When the third motor 801 is started, it drives the transmission disk 802 to rotate. The transmission disk 802 rotates through the transmission threaded rod 807. A movable slider 808 is sleeved on one end of the transmission threaded rod 807. The movable slider 808 and the transmission threaded rod 807 are connected by a thread. The transmission threaded rod 807 drives the movable slider 808 to move through the thread, thereby adjusting the eccentric distance of the movable slider 808 on the transmission disk 802 when the third motor 801 rotates. The larger the distance, the larger the circular film cut. The bottom end of the movable slider 808 is hinged to a second limiting rail 805, and a cross-shaped bidirectional slider 815 is provided at the middle position of the second limiting rail 805.

[0042] The support frame 806 has a first limiting rail 804 installed at one end near the second limiting rail 805, and the first limiting rail 804 and the second limiting rail 805 are connected by a cross-shaped bidirectional slider 815. The first limiting rail 804 and the second limiting rail 805 are used to limit the movement of the film cutter 810 at the end of the second limiting rail 805 away from the moving slider 808. A fifth motor 809 is installed at the end of the second limiting rail 805 away from the moving slider 808, and the film cutter 810 is installed at the output end of the fifth motor 809. When the fifth motor 809 is started, it drives the film cutter 810 to rotate, and the film cutter 810 cuts the film.

[0043] The film cutter 810 has a hinged cone block 812 hinged to its four periphery near the end of the fifth motor 809. An elastic element 813 is installed on the side of the hinged cone block 812 away from the hinge and near the film cutter 810. A one-way internal gear ring 811 is installed at the top of the film cutter 810, and the one-way internal gear ring 811 and the film cutter 810 are slidably connected. When the fifth motor 809 reverses, the elastic element 813 pushes the hinged cone block 812 into the one-way internal gear ring 811. In the toothed ring of the part, a circular cutting blade 814 is installed at the bottom end of the one-way inner toothed ring 811. When the fifth motor 809 rotates, it can drive the circular cutting blade 814 to cut a film of the same size as the circular cutting blade 814. The circular cutting blade 814 can be replaced according to the size of the food. The function of the circular cutting blade 814 is to facilitate the cutting of small, individually packaged, round food. By using the replaceable circular cutting blade 814 and the movable slider 808 that can adjust the size of the cut circle, it can flexibly adapt to food of different sizes and shapes.

[0044] A drying plate 6 is provided at the connection between the vertical tooling plate 2 and the processing base 9, and anti-direct-blow hot air blowers 7 are installed on both sides of the bottom end of the drying plate 6. The anti-direct-blow hot air blowers 7 are installed on the top of the workbench 1. The air outlets are evenly distributed through the drying plate 6, and the warm air accelerates the curing of the adhesive to ensure the bonding strength between the composite film and the substrate.

[0045] Among them, multiple sets of heating rollers 5 are installed on one side of the vertical tooling plate 2.

[0046] Working principle: First, a coating groove 310 is evenly set on the surface of the first coating roller 305, and an L-shaped transmission rod 309 and a heating wire 312 are provided inside the scraper plate 311. When the film contacts the first coating roller 305, the first motor 301 drives the transmission roller shaft 306 to rotate, moving the film and simultaneously rotating the transmission roller shaft 306. The transmission roller shaft 306 drives the L-shaped transmission rod 309 inside the straight rail slide 313 to move along the trajectory where the curved rail slide 308 and the straight rail slide 313 overlap, achieving the function of expanding and contracting the scraper 311. The pressure of the first coating roller 305 is adjusted by the overlap and limiting of the L-shaped transmission rod 309 and the straight rail slide 313 with the curved rail slide 308, ensuring that the film and the substrate are tightly bonded. When the scraper 311 moves away from the coating tank 310, the adhesive flows out from the gap between the coating tank 310 and the scraper 311 and is evenly applied to the film surface through the scraper 311. In addition, the heating wire 312 embedded in the scraper 311 can prevent the adhesive from solidifying, improve the coating stability, and improve the composite strength.

[0047] Then, since the internal parts of the second film coating structure 4 and the first film coating structure 3 are the same, the upper and lower double rollers are configured and the rollers are symmetrically arranged to apply glue. They are divided into a first coating roller 305 and a second coating roller 405. The base film passes between the two rollers in an S-shaped path to achieve double-sided synchronous coating. In addition, the rotation directions of the first coating roller 305 and the second coating roller 405 are opposite. The two motors are independently controlled to reduce the deviation caused by the meshing transmission.

[0048] Finally, for round pastries that cannot be fitted with the outer cutting film, the wrap-around cutting method of this device can not only save on film costs, but also reduce the air stored inside when used to fit round pastries. This can reduce the packaging size, increase the quantity transported at one time, and reduce transportation costs. Specifically, by first activating the processing table 901 to move the movable slider 904, the food positioning fork 902 is pushed towards the processing table 901, which can fix the food to be packaged.

[0049] Then, the third motor 801 is started to drive the transmission disk 802 to rotate. The transmission disk 802 rotates through the transmission threaded rod 807, which in turn drives the movable slider 808 to move through the threaded transmission. This adjusts the eccentricity of the movable slider 808 on the transmission disk 802 when the third motor 801 rotates. The larger the distance, the larger the circular film to be cut. Then, the second limit rail 805 is driven to the film cutting blade 810 at the end away from the movable slider 808 to cut the film. The function of the first limit rail 804 and the second limit rail 805 is to limit the movement. Then, the fifth motor 809 is started to drive the film cutting blade 810 to rotate. When the fifth motor 809 rotates, the film cutter 810 cuts the film. In addition, when the fifth motor 809 reverses, the elastic element 813 pushes the hinged cone block 812 into the toothed ring inside the one-way inner toothed ring 811. At this time, the rotation of the fifth motor 809 can drive the circular cutter 814 to cut the film of the same size as the circular cutter 814. The circular cutter 814 can be replaced according to the size of the food. The function of the circular cutter 814 is to facilitate the cutting of small, individually packaged, round food. The replaceable circular cutter 814 and the movable slider 808 that can adjust the size of the cut circle can flexibly adapt to food of different sizes and shapes.

[0050] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A food packaging bag processing double-sided film composite device, comprising a workbench (1) and a vertical tooling plate (2), characterized in that: The top end of the workbench (1) is provided with a vertical tooling plate (2), one end of one side of the vertical tooling plate (2) is provided with a first film gluing structure (3), the first film gluing structure (3) is a film gluing, the other end of one side of the vertical tooling plate (2) is provided with a second film gluing structure (4), one side of the top end of the workbench (1) is provided with a processing base structure (9), one side of the processing base structure (9) is provided with a food film cutting structure (8), the food film cutting structure (8) cuts the film, Wherein, the first film gluing structure (3) comprises a first motor (301) and a scraper (311), and the first motor (301) is installed on one side of the vertical tooling plate (2), the first motor (301) drives the scraper (311) to expand and contract through the transmission belt, Wherein, the food film cutting structure (8) comprises a third motor (801), a film cutting knife (810) and a circular cutting knife (814), and the third motor (801) is installed on the top end of the workbench (1), the third motor (801) drives the film cutting knife (810) and the circular cutting knife (814) to move through the transmission belt, The food film cutting structure (8) comprises a support frame (806), and the support frame (806) is installed on the top end of one side of the workbench (1) close to the processing base structure (9), one side of the top end of the support frame (806) is provided with a third motor (801), Wherein, the output end of the third motor (801) is provided with a transmission disc (802), one side of the bottom end of the transmission disc (802) is provided with a fourth motor (803), the output end of the fourth motor (803) is provided with a transmission screw rod (807), one end of the transmission screw rod (807) is provided with a moving block (808), the moving block (808) and the transmission screw rod (807) are in threaded transmission, The bottom end of the moving block (808) is hinged with a second limiting rail (805), and a cross-shaped bidirectional sliding block (815) is arranged at the middle position of the second limiting rail (805), Wherein, one end of the support frame (806) close to the second limiting rail (805) is provided with a first limiting rail (804), the first limiting rail (804) and the second limiting rail (805) are connected through the cross-shaped bidirectional sliding block (815), one end of the second limiting rail (805) away from the moving block (808) is provided with a fifth motor (809), and the output end of the fifth motor (809) is provided with a film cutting knife (810).

2. A device for processing a double film composite for a food packaging bag according to claim 1, characterized in that: The output end of the first motor (301) is provided with a first transmission roller (302), and the surface of the first transmission roller (302) is connected with a first transmission track (303), one side of the first transmission track (303) is provided with a second transmission roller (304), and one end of the second transmission roller (304) is provided with a transmission roller shaft (306), Wherein, one end of the transmission roller shaft (306) close to the second transmission roller (304) is embedded with a straight rail sliding groove (313).

3. A device for processing a double film laminate for a food packaging bag according to claim 2, characterized in that: The first rubber coating roller (305) is penetrated through the end of the transmission roller shaft (306) away from the second transmission roller (304), and a fixed circular plate (307) is installed at the end of the first rubber coating roller (305) away from the second transmission roller (304), Wherein, the surface of the fixed circular plate (307) is embedded with curved rail grooves (308), the number of the straight rail grooves (313) and the curved rail grooves (308) is the same, and the straight rail grooves (313) and the straight rail grooves (313) are annularly distributed about the center of the transmission roller shaft (306).

4. A device for processing a double film laminate for a food packaging bag according to claim 3, characterized in that: The inside of the straight rail groove (313) is provided with an L-shaped transmission rod (309), and the end of the L-shaped transmission rod (309) close to the fixed circular plate (307) slides inside the curved rail groove (308), Wherein, the side of the L-shaped transmission rod (309) away from the transmission roller shaft (306) is connected with a material scraping plate (311), Wherein, the outside of the transmission roller shaft (306) close to the material scraping plate (311) is provided with a rubber coating groove (310), and the rubber coating groove (310) and the material scraping plate (311) are staggered, the rubber coating groove (310) and the material scraping plate (311) are annularly distributed about the axis of the transmission roller shaft (306), Wherein, the connection between the transmission roller shaft (306) and the material scraping plate (311) is provided with a heating wire (312).

5. A device for processing a double faced film composite for a food packaging bag according to claim 1, characterized in that: The second thin film rubber coating structure (4) comprises a second motor (401), and the output end of the second motor (401) is provided with a third transmission roller (402), the surface of the third transmission roller (402) is connected with a second transmission track (403), and the side of the second transmission track (403) is provided with a fourth transmission roller (404), and the end of the fourth transmission roller (404) is provided with a second rubber coating roller (405).

6. A device for processing a double faced film composite for a food packaging bag according to claim 1, characterized in that: The processing base structure (9) comprises a processing table (901), and the processing table (901) is installed at the top of the workbench (1), four groups of telescopic rods (903) are installed at the four circumferential edges of the processing table (901), and the output end of the telescopic rod (903) is provided with a movable sliding block (904), and the end of the movable sliding block (904) close to the processing table (901) is provided with a food positioning fork (902).

7. A device for processing a double faced film composite for a food packaging bag according to claim 1, characterized in that: The hinge cone block (812) is hingedly installed at the four circumferential edges of the thin film cutting knife (810) close to the end of the fifth motor (809), and the elastic element (813) is installed at the side of the hinge cone block (812) away from the hinge and close to the thin film cutting knife (810), the top end of the thin film cutting knife (810) is provided with a one-way internal tooth ring (811), and the connection between the one-way internal tooth ring (811) and the thin film cutting knife (810) is slidingly connected, and the bottom end of the one-way internal tooth ring (811) is provided with a circular cutting knife (814).

8. A device for processing a double faced film composite for a food packaging bag according to claim 1, characterized in that: The connecting place of the vertical tooling plate (2) and the machining base structure (9) is provided with a drying plate (6), and the two sides of the bottom end of the drying plate (6) are provided with anti-direct blowing hot air fans (7), the anti-direct blowing hot air fans (7) are installed on the top end of the workbench top (1), wherein one side of the vertical tooling plate (2) is provided with a plurality of heating roller shafts (5).

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