A crease-free film pressing device for production of waterproof and wear-resistant PE heat-shrinkable film for packaging

Abstract

The present application relates to the technical field of film pressing device, in particular to a wrinkle-proof film pressing device for waterproof and wear-resistant PE heat-shrinkable film production for packaging; the wrinkle-proof film pressing device is provided with a fixing assembly, which can fix material rollers with different widths; the heat-shrinkable film is pressed from both sides by the extrusion rollers on both sides, and the heat-shrinkable film is pressed from both sides to the outside, so that the heat-shrinkable film is stressed more evenly; the heat-shrinkable film is pressed by the lower pressing roller, so that the heat-shrinkable film on one side of the packaging material is pressed horizontally, then the installation bases on both sides drive the side pulling roller to press the heat-shrinkable film on the side, so that the heat-shrinkable film on the other side of the packaging material is pressed laterally, and the wrinkle-proof effect is achieved; when the lower pressing plate drives the lower pressing plate to the appropriate position through the spring telescopic rod, the spring telescopic rod is compressed under stress, the ring cutter moves downward to cut the heat-shrinkable film, and the structures are linked with each other, which saves time and effort.

Description

Technical Field

[0001] This invention relates to the field of film pressing equipment technology, specifically to an anti-wrinkle film pressing device for producing waterproof and wear-resistant PE heat shrink film for packaging. Background Technology

[0002] Heat shrink film refers to a type of plastic film that shrinks when heated, and its material is mostly polymers such as polyethylene and polypropylene. When heat shrink film comes into contact with a heat source, it will instantly shrink and adhere tightly to the surface of the packaged object, achieving a tight wrapping effect. This film is widely used in the packaging and sealing field, and is suitable for packaging various commodities such as food, beverages, cosmetics, and pharmaceuticals. However, existing heat shrink film transport methods are problematic due to the variety of products and the difficulty in securing heat shrink film rolls of different widths. If the rolls are not properly secured, wrinkles can occur during subsequent transport. Furthermore, existing anti-wrinkle pressing methods only apply pressure from one side, resulting in uneven force and poor wrinkle prevention. Additionally, during packaging production, especially when covering products, failure to promptly apply anti-wrinkle pressing to the sides of the packaging can lead to wrinkles, affecting subsequent lamination. Moreover, after laminating the product, the heat shrink film needs to be cut and then heat-dried to shrink it before lamination. Different product types require different areas of cut heat shrink film, making the existing equipment's tool changing and lamination processes complex, time-consuming, and labor-intensive.

[0003] Therefore, there is a need for an anti-wrinkle lamination device for producing waterproof and wear-resistant PE heat shrink film for packaging to improve the above problems. Summary of the Invention

[0004] To address the issue that when using anti-wrinkle lamination devices, wrinkles can form on the sides of the packaging if the heat shrink film is not promptly anti-wrinkle laminated during packaging production, especially when the heat shrink film covers the packaged product. This negatively impacts the subsequent lamination effect of the heat shrink film. Therefore, this invention provides an anti-wrinkle lamination device for producing waterproof and wear-resistant PE heat shrink film for packaging, thus solving the aforementioned problem.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A wrinkle-resistant laminating device for producing waterproof and wear-resistant PE heat shrink film for packaging includes a mounting bracket. A controller is mounted on the side wall of the mounting bracket. A processing table is provided on the inner wall of the mounting bracket. A material conveyor is provided on the inner wall of the processing table. A fixing component is mounted on the opposing inner wall of the mounting bracket. A film conveying wrinkle-resistant component is provided on one side of the material conveyor and on the top inner wall of the mounting bracket. A packaging wrinkle-resistant component is mounted on one side of the film conveying wrinkle-resistant component and on the inner wall of the mounting bracket, wherein the packaging wrinkle-resistant component is located directly above the material conveyor. A rotating rod is mounted on one side of the fixing component and on the opposing inner wall of the mounting bracket. Two sets of rotating rods are arranged sequentially from top to bottom and are respectively located on the opposing inner walls of the mounting bracket. A limit roller is rotatably connected to the outer wall of the rotating rod. The packaging anti-wrinkle assembly includes electrically controlled telescopic cylinders and a mounting top plate. Two sets of electrically controlled telescopic cylinders are located on opposite inner walls of the mounting bracket, with the latter positioned directly above the material conveyor. A fixing sleeve is mounted on one end of each cylinder, and a downward pressure roller is rotatably connected to the inner wall of the fixing sleeve. The downward pressure roller is also positioned directly above the material conveyor. The mounting top plate is mounted on the top outer wall of the mounting bracket and is located on one side of the bracket. Electric cylinders are symmetrically mounted on the outer wall of the mounting top plate. One end of each electric cylinder penetrates the mounting top plate and extends to a downward pressure plate on one side of the mounting top plate. Spring telescopic rods are symmetrically mounted on the bottom outer wall of the downward pressure plate, and a downward pressure base plate is mounted on one end of each spring telescopic rod. A hot air gun is installed on the outer wall of the lower pressure plate. Rotating shafts are symmetrically arranged on the opposing inner walls of the lower pressure plate. Mounting bases are rotatably connected to the outer walls of the rotating shafts. Two sets of mounting bases are provided, each located on the outer wall of the rotating shaft. A side pull roller is mounted on one end of each mounting base via a limiting rod. A tension spring is mounted on the other end of each mounting base. Multiple sets of tension springs are located on the inner walls of the mounting bases. A fixing block is provided on the bottom outer wall of the lower pressure plate, positioned between the tension springs. A magnetic base is mounted on one end of each fixing block. A fixing bracket is magnetically connected to the inner wall of the magnetic base. A circumferential cutting blade is mounted on the outer wall of the fixing bracket, with the bottom of the circumferential cutting blade higher than the top of the side pull roller. The downward pressure roller presses down the heat shrink film to cover the surface of the packaging material. At the same time, the downward pressure roller presses the heat shrink film to ensure that the heat shrink film on one side of the packaging material is subjected to lateral pressure, which prevents wrinkles. Subsequently, the mounting bases on both sides rotate outward on the outer wall of the rotating shaft, thereby causing the mounting bases to drive the side pull rollers to press the heat shrink film on the side via the limit rod, so that the heat shrink film on the other side of the packaging material is subjected to lateral pressure, which also prevents wrinkles.

[0006] As a preferred embodiment of the present invention, the fixing component includes a fixing rod, which is rotatably connected to the inner wall of the mounting bracket. The outer wall of the fixing rod is provided with a mounting groove. Limiting springs are symmetrically arranged on the inner wall of the mounting groove, and a slider is slidably connected to the inner wall of the mounting groove. One end of the slider is connected to the limiting spring, and a limiting block is installed on the outer wall of the slider. The limiting block is slidably connected to the port of the mounting groove.

[0007] As a preferred embodiment of the present invention, a limiting block is slidably connected to one side of the mounting groove and on the outer wall of the fixing rod, wherein the limiting block is located on one side of the limiting block, a material roller is installed on the outer wall of the limiting block, a heat shrink film is slidably connected to the outer wall of the material roller, one end of the heat shrink film is slidably connected to the limiting roller, and one end of the fixing rod passes through the mounting bracket and extends to the outer wall of the mounting bracket to be connected to a drive motor, wherein two sets of drive motors are provided and are respectively located on the opposite outer walls of the mounting bracket.

[0008] As a preferred embodiment of the present invention, the membrane conveying anti-wrinkle assembly includes a mounting plate and a mounting bracket. The mounting plate is provided in multiple sets and is located on the outer walls of the mounting bracket opposite to each other. A limiting groove is formed on the outer wall of the mounting plate, and a sliding rod is slidably connected to the inner wall of the limiting groove. There are two sets of sliding rods and a double-headed electric cylinder is provided between the sliding rods. The two ends of the double-headed electric cylinder are respectively connected to the outer wall of the sliding rod.

[0009] As a preferred embodiment of the present invention, top rods are symmetrically installed on the outer walls of the sliding rods, wherein a mounting block is installed at one end of the top rod, and a pressing roller is rotatably connected to the inner wall of the mounting block. A mounting frame is installed on one side of the double-headed electrically controlled cylinder and on the outer wall of the mounting bracket. A positioning spring is installed on the outer wall of the mounting frame, wherein a rotating shaft is installed at one end of the positioning spring, and a positioning plate is connected to one end of the rotating shaft, wherein one end of the positioning plate is connected to the outer wall of the sliding rod.

[0010] As a preferred embodiment of the present invention, a caster wheel is provided at the bottom corner of the mounting bracket, and a support foot pad is provided on one side of the caster wheel and at the bottom of the mounting bracket. The controller is connected to a material conveyor, a drive motor, a double-headed electric cylinder, an electric telescopic cylinder, an electric cylinder and a hot air gun via wires, and the connection method is electrical connection. The electric telescopic cylinder is inclined at 45 degrees relative to the horizontal plane. One end of the heat shrink film is slidably connected to the outer wall of the extrusion roller, the limiting roller, the pressing roller and the side pulling roller in sequence.

[0011] Compared with the prior art, the present invention can fix material rollers of different widths by setting a fixing component in the anti-wrinkle pressing device for producing waterproof and wear-resistant PE heat shrink film for packaging. The material roller applies a pushing force to the limiting block through the limiting block, which in turn causes the limiting block to drive the slider to move to one side in the inner cavity of the mounting groove. Since a limiting spring is installed on one side of the slider, the limiting spring also applies an elastic rebound force to the slider, thereby limiting the slider to a suitable position. At this time, the sliders on both sides apply force to the material roller, so that the material roller is located in the middle position of the fixing rod. This solves the problem that it is not easy to fix heat shrink film rolls of different widths. If the heat shrink film roll is not fixed in a suitable position, it will cause the heat shrink film to shift and wrinkle during subsequent transmission.

[0012] This invention, by incorporating a film conveying and wrinkle-resistant component into an anti-wrinkle pressing device for producing waterproof and wear-resistant PE heat shrink film for packaging, applies pressure from both sides of the heat shrink film during transmission, resulting in uniform force on both sides and reducing the likelihood of wrinkles. Dual-headed electrically controlled cylinders push the sliding rods on both sides. When the sliding rods are subjected to force, they slide to one side on the inner wall of the limiting groove, thereby simultaneously applying pressure to both sides of the heat shrink film. This more even force distribution on the heat shrink film enhances wrinkle prevention and improves the wrinkle-resistant effect of the pressing process. This solves the problem of existing anti-wrinkle pressing devices that only press the heat shrink film from one side, resulting in uneven force and poor wrinkle prevention.

[0013] This invention enables the application of anti-wrinkle components in an anti-wrinkle laminating device for the production of waterproof and wear-resistant PE heat shrink film for packaging. The device achieves film lamination by incorporating a pressure roller and a side-pulling roller to remove wrinkles from the sides of the packaging. The pressure roller presses down the heat shrink film to cover the surface of the packaging material, simultaneously applying pressure to one side of the film to prevent wrinkles. Subsequently, the mounting bases on both sides rotate outwards on the outer wall of the rotating shaft, causing the side-pulling rollers to apply side-pressure to the heat shrink film on the other side of the packaging material, thus preventing wrinkles. This solves the problem of wrinkles forming during packaging if the sides of the packaging are not promptly treated with anti-wrinkle lamination when the heat shrink film is applied, which affects the subsequent lamination effect.

[0014] This invention, by incorporating an anti-wrinkle component into an anti-wrinkle pressing device for producing waterproof and wear-resistant PE heat shrink film for packaging, enables the following: When the lower pressure plate is driven to a suitable position by a spring telescopic rod, the spring telescopic rod is compressed, causing the ring-cutting blade to move downwards. When the ring-cutting blade contacts the heat shrink film, it cuts the film. Subsequently, the controller controls a hot air gun to blow hot air onto the surface of the packaging material to dry and coat the heat shrink film. The fixing bracket is then removed to disconnect the magnetic connection between the bracket and the magnetic base. Other types of cutters are then fixed to the outer wall of the fixing bracket, and the bracket is then attached to the inner wall of the magnetic base for fixation. The installation is relatively simple, thus solving the problems of complex, time-consuming, and labor-intensive operation steps for changing cutters and coating processes in existing devices. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the mounting bracket structure of the present invention; Figure 3 This is a side view of the structure of the present invention; Figure 4 This is a top view of the structure of the present invention; Figure 5 This is a schematic diagram of the structure of the heat-shrinkable film of the present invention; Figure 6 This is a schematic diagram of the membrane delivery anti-wrinkle assembly structure of the present invention; Figure 7 This is a schematic diagram of the packaging anti-wrinkle component structure of the present invention; Figure 8 For the present invention Figure 6 Enlarged schematic diagram of structure A; Figure 9 For the present invention Figure 7 An enlarged schematic diagram of the B structure.

[0016] In the diagram: 1. Mounting bracket; 2. Controller; 3. Processing table; 4. Material conveyor; 5. Fixing assembly; 501. Fixing rod; 502. Mounting groove; 503. Limiting spring; 504. Slider; 505. Limiting block; 506. Limiting block; 507. Material roller; 508. Heat shrink film; 509. Drive motor; 6. Film conveying anti-wrinkle assembly; 601. Mounting plate; 602. Mounting frame; 603. Limiting slide; 604. Slide rod; 605. Double-headed electric cylinder; 606. Top rod; 607. Mounting block; 608. Extrusion roller; 609. Positioning spring; 610. Rotary... 7. Shaft; 8. Positioning plate; 9. Packaging anti-wrinkle component; 10. Electrically controlled telescopic cylinder; 11. Mounting top plate; 12. Fixing sleeve; 13. Lower pressure roller; 14. Electric cylinder; 15. Lower pressure plate; 16. Spring telescopic rod; 17. Lower pressure base plate; 18. Hot air gun; 19. Rotating shaft; 20. Mounting base; 21. Limiting rod; 22. Side pull roller; 33. Tension spring; 44. Fixing block; 55. Magnetic base; 66. Fixing bracket; 77. Ring cutting blade; 8. Rotating rod; 9. Limiting roller; 10. Caster wheel; 11. Support foot pad. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0018] Example: Please refer to Figure 1-9 The device shown is an anti-wrinkle pressing device for producing waterproof and wear-resistant PE heat shrink film for packaging. It includes a mounting bracket 1, a controller 2 mounted on the side wall of the mounting bracket 1, a processing table 3 mounted on the inner wall of the mounting bracket 1, a material conveyor 4 mounted on the inner wall of the processing table 3, a fixing component 5 mounted on the opposite inner wall of the mounting bracket 1, a film conveying anti-wrinkle component 6 mounted on one side of the material conveyor 4 and located on the top inner wall of the mounting bracket 1, and a packaging anti-wrinkle component 7 mounted on one side of the film conveying anti-wrinkle component 6 and located on the inner wall of the mounting bracket 1, wherein the packaging anti-wrinkle component 7 is located directly above the material conveyor 4. A rotating rod 8 is mounted on one side of the fixing component 5 and located on the opposite inner wall of the mounting bracket 1, wherein two sets of rotating rods 8 are arranged sequentially from top to bottom and are located on the opposite inner walls of the mounting bracket 1 respectively, and a limit roller 9 is rotatably connected to the outer wall of the rotating rod 8.

[0019] In this embodiment, specific references Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 8 The fixing component 5 includes a fixing rod 501, which is rotatably connected to the inner wall of the mounting bracket 1. An mounting groove 502 is formed on the outer wall of the fixing rod 501. Limit springs 503 are symmetrically arranged on the inner wall of the mounting groove 502, and a slider 504 is slidably connected to the inner wall of the mounting groove 502. One end of the slider 504 is connected to the limit spring 503, and a limit block 505 is installed on the outer wall of the slider 504. The limit block 505 is slidably connected to the end of the mounting groove 502. One side of the mounting groove 502 and... A limiting block 506 is slidably connected to the outer wall of the fixed rod 501. The limiting block 506 is located on one side of the limiting block 505. A material roller 507 is installed on the outer wall of the limiting block 506. A heat shrink film 508 is slidably connected to the outer wall of the material roller 507. One end of the heat shrink film 508 is slidably connected to the limiting roller 9. One end of the fixed rod 501 passes through the mounting bracket 1 and extends to the outer wall of the mounting bracket 1, where a drive motor 509 is connected. Two sets of drive motors 509 are provided and are located on opposite outer walls of the mounting bracket 1.

[0020] Based on the above structural features and connection relationship, once the material roller 507 is fixed, simply turn on the switch of the controller 2, which will then control the drive motors 509 on both sides to run simultaneously. When the drive motors 509 run, the drive shaft of the drive motors 509 will drive the fixed rod 501 to rotate, which will in turn drive the material roller 507 to run, so that the heat shrink film 508 can be transferred. In this embodiment, specific references Figure 1 ,picture, Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6The membrane conveying anti-wrinkle assembly 6 includes a mounting plate 601 and a mounting bracket 602. Multiple sets of mounting plates 601 are provided, each located on the opposite outer wall of the mounting bracket 1. A limiting groove 603 is formed on the outer wall of the mounting plate 601. A sliding rod 604 is slidably connected to the inner wall of the limiting groove 603. Two sets of sliding rods 604 are provided, and a double-headed electrically controlled cylinder 605 is positioned between the sliding rods 604. The two ends of the double-headed electrically controlled cylinder 605 are respectively connected to the outer wall of the sliding rod 604. A top rod 606 is symmetrically installed, with a mounting block 607 installed at one end of the top rod 606. A pressing roller 608 is rotatably connected to the inner wall of the mounting block 607. A mounting bracket 602 is installed on one side of the double-headed electric control cylinder 605 and on the outer wall of the mounting bracket 1. A positioning spring 609 is installed on the opposite outer wall of the mounting bracket 602. A rotating shaft 610 is installed at one end of the positioning spring 609. A positioning plate 611 is connected to one end of the rotating shaft 610. One end of the positioning plate 611 is connected to the outer wall of the slide rod 604.

[0021] Based on the above structural features and connection relationships, when the slide rod 604 moves laterally, it will cause the positioning plate 611 to move, so that the positioning plate 611 applies a pulling force to the positioning spring 609 through the rotating shaft 610. In turn, the positioning spring 609 is elastically supported, so that the positioning spring 609 applies a force to the slide rod 604 through the positioning plate 611 to fix it. The stability of the slide rod 604 is better when it moves to both sides. In this embodiment, specific references Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 9The packaging anti-wrinkle component 7 includes an electrically controlled telescopic cylinder 701 and a mounting top plate 702. Two sets of electrically controlled telescopic cylinders 701 are provided and located on opposite inner walls of the mounting bracket 1. The electrically controlled telescopic cylinders 701 are positioned directly above the material conveyor 4. A fixing sleeve 703 is installed at one end of the electrically controlled telescopic cylinder 701. A downward pressure roller 704 is rotatably connected to the inner wall of the fixing sleeve 703. The downward pressure roller 704 is located directly above the material conveyor 4. The mounting top plate 702... 2. Mounting plate 702 is installed on the top outer wall of mounting bracket 1, and the mounting top plate 702 is located on one side of mounting bracket 602. Electric cylinders 705 are symmetrically installed on the outer wall of mounting top plate 702. One end of electric cylinder 705 passes through mounting top plate 702 and extends to one side of mounting top plate 702 where a lower pressure plate 706 is provided. Spring telescopic rods 707 are symmetrically installed on the bottom outer wall of lower pressure plate 706. A lower pressure base plate 708 is installed at one end of spring telescopic rod 707. A hot air gun 709 is installed on the outer wall of the pressure plate 708. A rotating shaft 710 is symmetrically arranged on the inner wall opposite to the pressure plate 708. A mounting base 711 is rotatably connected to the outer wall of the rotating shaft 710. There are two sets of mounting bases 711, which are located on the outer wall of the rotating shaft 710 respectively. A side pull roller 713 is installed on one end of the mounting base 711 through a limit rod 712. A tension spring 714 is installed on the other end of the mounting base 711. There are multiple sets of tension springs 714, which are located on the inner wall of the mounting base 711 respectively. A fixing block 715 is installed on the bottom outer wall of the pressure plate 706. The fixing block 715 is located between the tension springs 714. A magnetic base 716 is installed on one end of the fixing block 715. A fixing bracket 717 is magnetically connected to the inner wall of the magnetic base 716. A ring cutting blade 718 is installed on the outer wall of the fixing bracket 717. The bottom of the ring cutting blade 718 is higher than the top of the side pull roller 713.

[0022] The mounting bracket 1 is equipped with a caster wheel 10 at the bottom corner. A support foot pad 11 is provided on one side of the caster wheel 10 and at the bottom of the mounting bracket 1. The controller 2 is connected to the material conveyor 4, drive motor 509, double-headed electric cylinder 605, electric telescopic cylinder 701, electric cylinder 705 and hot air gun 709 by wires. The controller 2 controls the material conveyor 4, drive motor 509, double-headed electric cylinder 605, electric telescopic cylinder 701, electric cylinder 705 and hot air gun 709 to operate. The electric telescopic cylinder 701 is tilted at 45 degrees relative to the horizontal plane. One end of the heat shrink film 508 is slidably connected to the outer wall of the extrusion roller 608, limit roller 9, pressure roller 704 and side pull roller 713 in sequence.

[0023] The anti-wrinkle film pressing device for producing waterproof and wear-resistant PE heat shrink film in this solution operates by using a controller 2 connected via wires to a material conveyor 4, a drive motor 509, a double-headed electric cylinder 605, an electric telescopic cylinder 701, an electric cylinder 705, and a heat gun 709. This electrically connected connection energizes the device, thereby enabling the controller 2 to control the material conveyor 4, drive motor 509, double-headed electric cylinder 605, and electric telescopic cylinder 701. When the electric cylinder 705 and the hot air gun 709 are powered on, a slider 504 is slidably connected to the inner wall of the mounting groove 502. One end of the slider 504 is connected to a limit spring 503, and a limit block 505 is installed on the outer wall of the slider 504. The limit block 505 is slidably connected to the end of the mounting groove 502. A limit block 506 is slidably connected to one side of the mounting groove 502 and on the outer wall of the fixing rod 501. The limit block 506 is located to one side of the limit block 505. Under the action of the material roller 507, when it is sleeved on the outer wall of the fixed rod 501, the material roller 507 is respectively stuck on the outer wall of the limiting block 506 on both sides of the fixed rod 501, and the material roller 507 pushes the limiting block 505 through the limiting block 506, thereby causing the limiting block 505 to drive the slider 504 to move to one side in the inner cavity of the mounting groove 502. Since the limiting spring 503 is installed on one side of the slider 504, the limiting spring 503 is subjected to the tension force of the slider 504. When the limiting spring 503 also applies an elastic rebound force to the slider 504, the slider 504 is limited to a suitable position. At this time, the sliders 504 on both sides apply force to the material roller 507, so that the material roller 507 is located in the middle position of the fixed rod 501. This solves the problem that heat shrink film rolls of different widths are not easy to fix. If the heat shrink film roll is not fixed in a suitable position, it will cause the heat shrink film to shift and wrinkle during subsequent transmission.

[0024] A limiting groove 603 is formed on the outer wall of the mounting plate 601. A sliding rod 604 is slidably connected to the inner wall of the limiting groove 603. Two sets of sliding rods 604 are provided, and a double-headed electrically controlled cylinder 605 is positioned between the sliding rods 604. Both ends of the double-headed electrically controlled cylinder 605 are connected to the outer wall of the sliding rod 604. When the heat shrink film 508 is being transported, the switch of the controller 2 is turned on, causing the controller 2 to control the operation of the double-headed electrically controlled cylinder 605. This causes the double-headed electrically controlled cylinder 605 to push against the sliding rods 604 on both sides. When the sliding rod 604 is subjected to force, it slides to one side on the inner wall of the limiting groove 603. When the sliding rod 604 moves laterally, it drives... The push rod 606 moves laterally. When the push rod 606 moves laterally, it drives the extrusion roller 608 to move laterally to one side via the mounting block 607. This causes the extrusion roller 608 to extrude the heat shrink film 508 to prevent wrinkles. Due to the pushing force of the double-headed electric cylinder 605 on the slide rods 604 on both sides, the slide rods 604 on both sides drive the push rod 606 to unfold to both sides. This causes both sides of the heat shrink film 508 to be subjected to extrusion force simultaneously, resulting in more even force distribution and better wrinkle prevention. This solves the problem that existing wrinkle prevention film pressing methods can only press the heat shrink film from one side, resulting in uneven force and poor wrinkle prevention effect.

[0025] A material conveyor 4 is installed on the inner wall of the processing table 3. A fixed sleeve 703 is installed at one end of the electrically controlled telescopic cylinder 701. A pressure roller 704 is rotatably connected to the inner wall of the fixed sleeve 703. The pressure roller 704 is located directly above the material conveyor 4. Under the action of the electrically controlled telescopic cylinder 701 tilted at 45 degrees relative to the horizontal plane, the material to be packaged is placed on the conveyor belt of the material conveyor 4, and the controller 2 controls the material conveyor 4 to operate. When the packaged material moves to the appropriate position, the controller 2 controls the electrically controlled telescopic cylinder 701 to advance. As the package moves, one end of the electrically controlled telescopic cylinder 701 drives the pressing roller 704 to move via the fixed sleeve 703. At the same time, the electrically controlled telescopic cylinders 701 on both sides simultaneously control the pressing roller 704 to move downward, so that the pressing roller 704 presses down the heat shrink film 508, so that the heat shrink film 508 covers the surface of the packaging material. At the same time, the pressing roller 704 presses the heat shrink film 508, so that the heat shrink film 508 on one side of the packaging material is subjected to lateral pressing, which plays a role in preventing wrinkles. Meanwhile, the controller 2 controls the electric cylinder 705 to operate.

[0026] A lower pressure plate 706 is provided on one side of the mounting top plate 702, with one end of the electric cylinder 705 penetrating through it. A spring telescopic rod 707 is symmetrically installed on the bottom outer wall of the lower pressure plate 706. A lower pressure base plate 708 is installed at one end of the spring telescopic rod 707. A hot air gun 709 is provided on the outer wall of the lower pressure base plate 708. A rotating shaft 710 is symmetrically arranged on the opposing inner wall of the lower pressure base plate 708. A mounting base 711 is rotatably connected to the outer wall of the rotating shaft 710. Two sets of mounting bases 711 are provided, each located on the outer wall of the rotating shaft 710. A side pull roller 713 is installed at one end of the mounting base 711 via a limit rod 712. When the electric cylinder 705 operates, it causes the lower pressure plate 706 to move downwards, causing the lower pressure plate 706 to move downwards via the spring telescopic rod 707 and press down on the lower pressure base plate. 708 moves downward, causing the lower pressure plate 708 to drive the mounting base 711 downward via the rotating shaft 710. Since the mounting base 711 is equipped with a side pull roller 713 via a limiting rod 712, when the side pull roller 713 adheres to the heat shrink film 508 on the surface of the packaging material, it experiences a reaction force and moves to one side. This causes the mounting bases 711 on both sides to rotate outward on the outer wall of the rotating shaft 710. Consequently, the mounting base 711, via the limiting rod 712, drives the side pull roller 713 to perform side pressing on the heat shrink film 508, thus ensuring that the heat shrink film 508 on the other side of the packaging material is laterally pressed, preventing wrinkles. This solves the problem that if the sides of the packaging are not promptly wrinkle-proofed when the heat shrink film covers the product, wrinkles will form during packaging, affecting the subsequent heat shrink film coating effect.

[0027] When the lower pressure plate 706 is moved downward by the electric cylinder 705, and the lower pressure plate 708 is moved to the appropriate position by the spring telescopic rod 707, the spring telescopic rod 707 will be compressed. After the spring telescopic rod 707 is compressed, the ring-cutting blade 718 moves downward. When the ring-cutting blade 718 contacts the heat shrink film 508, it will cut the heat shrink film 508. Then the controller 2 controls the hot air gun 709 to blow hot air to dry and coat the heat shrink film 508 on the surface of the packaging material. At the same time, the fixing block 715 is located between the tension springs 714, and one end of the fixing block 715 is fixed. The device is equipped with a magnetic base 716, on the inner wall of which a fixed bracket 717 is magnetically connected. A ring-cutting blade 718 is mounted on the outer wall of the fixed bracket 717. With the bottom of the ring-cutting blade 718 higher than the top of the side pull roller 713, when the blade needs to be replaced, simply pull out the fixed bracket 717 to disconnect the magnetic connection between the fixed bracket 717 and the magnetic base 716. Then, fix other types of blades to the outer wall of the fixed bracket 717, and then attach the fixed bracket 717 to the inner wall of the magnetic base 716 for fixation. The installation is relatively simple, thus solving the problem that the existing device has complicated, time-consuming and labor-intensive operation steps for changing blades and coating processing.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wrinkle-resistant laminating device for producing waterproof and wear-resistant PE heat-shrinkable film for packaging, comprising a mounting bracket (1), characterized in that: A controller (2) is installed on the side wall of the mounting bracket (1). A processing table (3) is provided on the inner wall of the mounting bracket (1). A material conveyor (4) is provided on the inner wall of the processing table (3). A fixing component (5) is installed on the opposite inner wall of the mounting bracket (1). A film conveying anti-wrinkle component (6) is provided on the inner wall of the material conveyor (4) and located at the top of the mounting bracket (1). A packaging anti-wrinkle component (7) is installed on the inner wall of the mounting bracket (1) and located on the side of the film conveying anti-wrinkle component (6). The packaging anti-wrinkle component (7) is located directly above the material conveyor (4). A rotating rod (8) is installed on the inner wall of the mounting bracket (1) and located on the side of the fixing component (5). Two sets of rotating rods (8) are arranged from top to bottom and are located on the opposite inner walls of the mounting bracket (1). A limit roller (9) is rotatably connected to the outer wall of the rotating rod (8). The packaging anti-wrinkle component (7) includes an electrically controlled telescopic cylinder (701) and a mounting top plate (702). Two sets of the electrically controlled telescopic cylinder (701) are provided and located on opposite inner walls of the mounting bracket (1). The electrically controlled telescopic cylinder (701) is located directly above the material conveyor (4). A fixing sleeve (703) is installed at one end of the electrically controlled telescopic cylinder (701). A downward pressure roller (704) is rotatably connected to the inner wall of the fixing sleeve (703). The downward pressure roller (704) is located directly above the material conveyor (4). The mounting top plate (702) 702) is installed on the top outer wall of the mounting bracket (1), and the mounting top plate (702) is located on one side of the mounting bracket (602). Electric cylinders (705) are symmetrically installed on the outer wall of the mounting top plate (702). One end of the electric cylinder (705) passes through the mounting top plate (702) and extends to one side of the mounting top plate (702) where a lower pressure plate (706) is provided. Spring telescopic rods (707) are symmetrically installed on the bottom outer wall of the lower pressure plate (706). A lower pressure bottom plate (708) is installed at one end of the spring telescopic rod (707). A hot air gun (709) is provided on the outer wall of the plate (708). A rotating shaft (710) is symmetrically provided on the inner wall opposite to the bottom plate (708). A mounting base (711) is rotatably connected to the outer wall of the rotating shaft (710). There are two sets of mounting bases (711) located on the outer wall of the rotating shaft (710). A side pull roller (713) is installed at one end of the mounting base (711) via a limiting rod (712). A tension spring (714) is installed at the other end of the mounting base (711). 14) Multiple sets are provided on the inner wall of the mounting base (711), and a fixing block (715) is provided on the bottom outer wall of the lower pressure plate (706). The fixing block (715) is located between the tension springs (714), and a magnetic base (716) is installed at one end of the fixing block (715). A fixing bracket (717) is magnetically connected to the inner wall of the magnetic base (716). A ring cutting blade (718) is installed on the outer wall of the fixing bracket (717), and the bottom of the ring cutting blade (718) is higher than the top of the side pull roller (713). The pressing roller (704) presses down the heat shrink film (508) so that the heat shrink film (508) covers the surface of the packaging material. At the same time, the pressing roller (704) presses the heat shrink film (508) so that the heat shrink film (508) on one side of the packaging material is subjected to lateral pressing, which plays a role in preventing wrinkles. Then, the mounting bases (711) on both sides rotate outward on the outer wall of the rotating shaft (710), so that the mounting base (711) drives the side pull roller (713) to press the heat shrink film (508) on the side through the limit rod (712), so that the heat shrink film (508) on the other side of the packaging material is subjected to lateral pressing, which plays a role in preventing wrinkles.

2. The anti-wrinkle laminating device for producing waterproof and wear-resistant PE heat-shrinkable film for packaging according to claim 1, characterized in that: The fixing component (5) includes a fixing rod (501), which is rotatably connected to the inner wall opposite to the mounting bracket (1). The outer wall opposite to the fixing rod (501) is provided with a mounting groove (502). Limiting springs (503) are symmetrically arranged on the inner wall of the mounting groove (502), and a slider (504) is slidably connected to the inner wall of the mounting groove (502). One end of the slider (504) is connected to the limiting spring (503), and a limiting block (505) is installed on the outer wall of the slider (504). The limiting block (505) is slidably connected to the port of the mounting groove (502).

3. The anti-wrinkle pressing device for producing waterproof and wear-resistant PE heat shrink film for packaging according to claim 2, characterized in that: A limiting block (506) is slidably connected to one side of the mounting groove (502) and the outer wall of the fixing rod (501), wherein the limiting block (506) is located on one side of the limiting block (505), a material roller (507) is installed on the outer wall of the limiting block (506), a heat shrink film (508) is slidably connected to the outer wall of the material roller (507), one end of the heat shrink film (508) is slidably connected to the limiting roller (9), one end of the fixing rod (501) passes through the mounting bracket (1) and extends to the outer wall of the mounting bracket (1) to be connected to a drive motor (509), wherein two sets of drive motors (509) are provided and are respectively located on the opposite outer walls of the mounting bracket (1).

4. The anti-wrinkle pressing device for producing waterproof and wear-resistant PE heat shrink film for packaging according to claim 3, characterized in that: The membrane delivery anti-wrinkle assembly (6) includes a mounting plate (601) and a mounting bracket (602). The mounting plate (601) is provided with multiple sets and is located on the opposite outer walls of the mounting bracket (1). A limiting groove (603) is provided on the outer wall of the mounting plate (601). A slide rod (604) is slidably connected on the inner wall of the limiting groove (603). There are two sets of slide rods (604) and a double-headed electric cylinder (605) is provided between the slide rods (604). The two ends of the double-headed electric cylinder (605) are respectively connected to the outer wall of the slide rod (604).

5. The anti-wrinkle pressing device for producing waterproof and wear-resistant PE heat shrink film for packaging according to claim 4, characterized in that: Top rods (606) are symmetrically installed on the opposite outer walls of the slide rod (604). One end of the top rod (606) is equipped with a mounting block (607). An extrusion roller (608) is rotatably connected to the inner wall of the mounting block (607). A mounting bracket (602) is installed on one side of the double-headed electric cylinder (605) and on the outer wall of the mounting bracket (1). A positioning spring (609) is installed on the opposite outer wall of the mounting bracket (602). A rotating shaft (610) is installed on one end of the positioning spring (609). A positioning plate (611) is connected to one end of the rotating shaft (610). One end of the positioning plate (611) is connected to the outer wall of the slide rod (604).

6. The anti-wrinkle pressing device for producing waterproof and wear-resistant PE heat shrink film for packaging according to claim 5, characterized in that: A caster wheel (10) is provided at the bottom corner of the mounting bracket (1). A support foot pad (11) is provided on one side of the caster wheel (10) and at the bottom of the mounting bracket (1). The controller (2) is connected to the material conveyor (4), drive motor (509), double-headed electric cylinder (605), electric telescopic cylinder (701), electric cylinder (705) and hot air gun (709) respectively via wires. The connection method is electrical connection. The electric telescopic cylinder (701) is inclined at 45 degrees relative to the horizontal plane. One end of the heat shrink film (508) is slidably connected to the outer wall of the extrusion roller (608), the limiting roller (9), the pressing roller (704) and the side pulling roller (713) in sequence.

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