Multilayer composite hot press molding equipment for high-barrier pet film
By introducing a quick-release coating component and a tension control system into a high-barrier PET film multilayer composite hot pressing molding equipment, the problems of film adhesion and layer sticking were solved, thereby achieving stability in the composite process and improving product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QIXING MEDICINAL PACKING CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-14
AI Technical Summary
Existing high-barrier PET film multilayer composite hot pressing equipment is prone to problems such as film adhesion to the mold or adhesion between multiple films due to excessive penetration of hot melt adhesive during high-temperature hot pressing, which affects product quality and pass rate.
The quick-release coating assembly, including a coating roller and a feeder, is used to prevent the films from sticking together after high-temperature and high-pressure lamination by applying an anti-sticking agent. The tension of the film is controlled by a tension roller and a conveyor belt to ensure that the film can be easily peeled off and wound up after lamination.
It effectively avoids defects such as film adhesion and wrinkles, ensures the stability of the lamination process and product quality, reduces production failure rate and downtime losses, and adapts to the lamination needs of films of different thicknesses and materials.
Smart Images

Figure CN224490096U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of hot pressing molding equipment, and particularly to a multilayer composite hot pressing molding equipment for high-barrier PET film. Background Technology
[0002] The core reason for using high-barrier PET film multilayer composite thermoforming equipment is that a single PET film is difficult to meet the high barrier requirements. Multilayer composite, by thermoforming PET with other barrier materials, can achieve the superposition of barrier properties, while retaining the advantages of PET such as strength and temperature resistance. This meets the needs of scenarios with stringent requirements for packaging sealing, freshness preservation, and corrosion resistance, and is commonly used in food packaging, pharmaceutical packaging, and electronic packaging.
[0003] The high-barrier PET film multilayer composite hot pressing molding equipment achieves precise composite of multilayer films through the synergy of heating and pressurizing structure, material conveying and adjustment structure, coating structure and temperature and pressure control system, thus meeting the requirements for high barrier performance.
[0004] Currently, existing equipment may experience adhesion between the film and the mold during high-temperature hot pressing, or adhesion problems between multiple films due to excessive penetration of hot melt adhesive, which can affect product quality and reduce the product qualification rate. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a multilayer composite hot pressing molding equipment for high-barrier PET film, which aims to improve the problem of adhesion between film and mold during high-temperature hot pressing, or the problem of adhesion between multilayer films due to excessive penetration of hot melt adhesive.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a multilayer composite hot pressing molding equipment for high-barrier PET film, comprising a machine body, a control console provided on the outer wall of the machine body, a hot pressing plate provided inside the machine body, a pressure gauge provided on the outer wall of the machine body, and a quick-release coating assembly provided inside the machine body;
[0007] The quick-release coating assembly includes a connecting rod 1, which is located inside the machine body. A paint roller is rotatably connected to the outer wall of the connecting rod 1, and a feeder is attached to the outer wall of the paint roller. A sliding rod is fixedly connected to one end of the connecting rod 1, and a locking block 2 is fixedly connected to one end of the sliding rod. A spring 1 is fixedly connected to one end of the locking block 2. The locking block 1 is slidably connected to the outer wall of the sliding rod, and a locking block 3 is attached to the outer wall of the sliding rod. A connecting rod 2 is fixedly connected to one end of the locking block 3, and a locking shaft is fixedly connected to one end of the connecting rod 2. A spring 2 is sleeved on the outer wall of the connecting rod 2.
[0008] Furthermore, a connecting rod three is provided inside the machine body. One end of the connecting rod three is fixedly connected to a gear one, and the other end of the connecting rod three is fixedly connected to a gear two. A presser is provided on the outer wall of the gear two. A push rod is fixedly connected to the lower surface of the presser. A connecting block two is fixedly connected to the lower surface of the push rod. A support rod is fixedly connected to the lower surface of the connecting block two. A connecting block one is fixedly connected to the lower surface of the support rod. A spring three is fixedly connected to the lower surface of the connecting block three. An upper puller is fixedly connected to the lower surface of the spring three.
[0009] Furthermore, a control panel is provided on one side of the machine body, and a support plate is fixedly connected to the inner wall of the machine body.
[0010] Furthermore, a tension roller is rotatably connected to the outer wall of the support rod, and a conveyor belt is provided inside the machine body.
[0011] Furthermore, the pressure gauge is located above the control console, and the feeder is located inside the machine body.
[0012] Furthermore, the locking shaft is positioned above the locking block three, and the support rod is positioned above the spring three.
[0013] Furthermore, the feeder is positioned above the connecting rod, and the gear is positioned on one side of the outer wall of the machine body.
[0014] Furthermore, the hot press plate is positioned above the support plate, and the feeder is positioned above the conveyor belt.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, by installing a coating component, the multi-layer film is prevented from sticking together due to excessive intermolecular forces after high-temperature and high-pressure lamination. This ensures that the laminated film can be easily peeled off and rolled up, reducing defects such as tearing and wrinkling caused by adhesion. This ensures the stability of the lamination process and product quality in a low-cost manner.
[0017] 2. In this utility model, wrinkles, stretching deformation or stacking misalignment caused by uneven tension of each layer of film are avoided, ensuring the flatness and dimensional accuracy of the film after lamination, reducing production failures such as film breakage and deviation caused by tension fluctuations, improving equipment operation stability, reducing downtime losses, and adapting to tension differences of films of different thicknesses and materials during lamination. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of a multilayer composite hot pressing molding equipment for high-barrier PET film proposed in this utility model;
[0019] Figure 2This is a schematic diagram of the main body structure of a multilayer composite hot pressing molding equipment for high-barrier PET film proposed in this utility model;
[0020] Figure 3 This is a schematic diagram of the feeding device part of a multilayer composite hot pressing molding equipment for high-barrier PET film proposed in this utility model.
[0021] Figure 4 This is a schematic diagram of the control panel structure of a multilayer composite hot pressing molding equipment for high-barrier PET film proposed in this utility model.
[0022] Figure 5 This is a schematic diagram of the coating roller section of a multilayer composite hot pressing molding equipment for high-barrier PET film proposed in this utility model.
[0023] Figure 6 This is a schematic diagram of the support rod structure of a multilayer composite hot pressing molding equipment for high-barrier PET film proposed in this utility model.
[0024] Legend:
[0025] 1. Machine body; 2. Control panel; 3. Control console; 4. Pressure gauge; 5. Hot press plate; 6. Support plate; 7. Conveyor belt; 8. Feeder; 9. Connecting rod one; 10. Tension roller; 11. Paint roller; 12. Locking block one; 13. Sliding rod; 14. Locking block two; 15. Spring one; 16. Locking block three; 17. Spring two; 18. Connecting rod two; 19. Locking shaft; 20. Gear one; 21. Connecting rod three; 22. Pressing device; 23. Gear two; 24. Spring three; 25. Puller; 26. Connecting block one; 27. Support rod; 28. Push rod; 29. Connecting block two. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Reference Figure 1 - Figure 3The present invention provides an embodiment of a multilayer composite hot pressing molding device for high-barrier PET film, comprising a machine body 1, which supports the entire structure, a control console 3 on the outer wall of the machine body 1, which controls the hot pressing device, a pressure gauge 4 on the outer wall of the machine body 1, a hot pressing plate 5 inside the machine body 1, which is used for hot pressing composite materials, the pressure gauge 4 for displaying the pressure of the hot pressing plate 5, and a quick-release coating assembly inside the machine body 1.
[0028] The quick-release coating assembly includes a connecting rod 9, which supports the coating roller 11 and enables it to rotate. The connecting rod 9 is located inside the machine body 1. The coating roller 11 is rotatably connected to the outer wall of the connecting rod 9. The coating roller 11 is used to apply thin-film coating. A feeder 8 is attached to the outer wall of the coating roller 11. The feeder 8 is used to apply anti-sticking agent onto the coating roller 11. A sliding rod 13 is fixedly connected to one end of the connecting rod 9. The sliding rod 13 provides sliding space for the locking block 12. A locking block 14 is fixedly connected to one end of the sliding rod 13. The locking block 14 locks the locking block 16, thus locking the quick-release device. A spring 15 is fixedly connected to one end of the locking block 14. Spring 15 is used to push the second locking block 14. The outer wall of the sliding rod 13 is slidably connected to the first locking block 12. The first locking block 12 is used to help the third locking block 16 disengage from the second locking block 14. The outer wall of the sliding rod 13 is fitted with the third locking block 16. The third locking block 16 is used to lock the first connecting rod 9. One end of the third locking block 16 is fixedly connected to the second connecting rod 18. The second connecting rod 18 is used to guide the sliding direction of the third locking block 16. One end of the second connecting rod 18 is fixedly connected to the locking shaft 19. The locking shaft 19 is used to prevent the third locking block 16 from disengaging from the body 1. The outer wall of the second connecting rod 18 is fitted with the second spring 17. The second spring 17 is used to allow the third locking block 16 to retract.
[0029] Reference Figure 4 - Figure 6Inside the machine body 1, there is a connecting rod 3 21. The connecting rod 3 21 is used to connect gear 1 20 and gear 2 23. One end of the connecting rod 3 21 is fixedly connected to gear 1 20, which is used to conveniently fix the lifting device. The other end of the connecting rod 3 21 is fixedly connected to gear 2 23, which is used to control the lifting and lowering of tension roller 10. A presser 22 is provided on the outer wall of gear 2 23. The presser 22 is used to press down tension roller 10. A push rod 28 is fixedly connected to the lower surface of the presser 22. The push rod 28 is used to push connecting block 2 29. The lower surface of the push rod 28 is fixedly connected to connecting block 29, which is used to squeeze support rod 27. The lower surface of connecting block 29 is fixedly connected to support rod 27, which is used to support tension roller 10. The lower surface of support rod 27 is fixedly connected to connecting block 26, which is used to lift support rod 27. The lower surface of connecting block 26 is fixedly connected to spring 3 24. A support rod 27 is used to support the support rod 27 and provide it with downward pressure space. A puller 25 is fixedly connected to the lower surface of spring 3 24. The puller 25 is used to lift spring 3 24. A control plate 2 is set on one side of the machine body 1. The control plate 2 is used to start the mechanical control of material conveying. A support plate 6 is fixedly connected to the inner wall of the machine body 1. The support plate 6 is used to support the material being hot-pressed. A tension roller 10 is rotatably connected to the outer wall of the support rod 27. The tension roller 10 is used to control the material tension. A pressure gauge 4 is set above the control console 3. A conveyor belt 7 is set inside the machine body 1. The conveyor belt 7 is used to convey the hot-pressed material. The pressure gauge 4 is set above the control console 3. The feeder 8 is set inside the machine body 1. A clamping shaft 19 is set above clamping block 3 16. The support rod 27 is set above spring 3 24. The feeder 8 is set above connecting rod 1 9. Gear 1 20 is set on one side of the outer wall of the machine body 1. The hot pressing plate 5 is set above the support plate 6. The feeder 8 is set above the conveyor belt 7.
[0030] Working principle: When the machine is needed, first fill the feeder 8 with anti-sticking agent. Then, by rotating gear 1 20, the connecting rod 3 21 drives gear 2 23 to rotate, causing the presser 22 to press down and the puller 25 to pull up. The push rod 28 continuously presses down the tension roller 10, and the spring 3 24 is continuously compressed, causing the height of the tension roller 10 to decrease. Adjust the tension roller 10 to a suitable height to control the tension. Push gear 1 20 into the groove of the machine body to fix it. Then, start the machine through the control board 2. The conveyor belt 7 begins to convey the material to be hot-pressed towards the hot press plate 5. When the material is conveyed to the tension roller 10, it is ensured to be straightened without wrinkles. As it continues to be conveyed past the coating roller 11, the coating roller 11 applies the anti-sticking agent pre-loaded in the feeder 8 to the surface of the conveyed material. Finally, the conveyor belt 7 delivers the material above the support plate 6. Platform 3 controls the hot press plate 5 to work, hot pressing the material on the support plate 6. The pressure gauge 4 will display the current temperature of the hot press plate 5 and the pressure after pressing down. Since the material is coated with anti-sticking agent beforehand, it will not stick to the hot press plate 5. Since the paint roller 11 is frequently coated with anti-sticking agent, it needs to be removed and cleaned regularly. At this time, the connecting rod 9 can be pushed. Due to the pressure of the connecting rod 9, the locking block 16 can only be squeezed. The locking block 16 slides along the surface of the locking block 12 to the other side. The spring 15 will push the locking block 2 14 backward. The locking block 16 and the locking block 12 slide to the other end of the sliding rod 13 due to the influence of the spring 15 pushing the locking block 2 14. The locking block 16 will slide out along the other side of the locking block 12 and thus disengage from the locking block 2 14. The connecting rod 9 can then be removed from the machine body 1, and the paint roller 11 can be replaced or cleaned.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multilayer composite hot pressing molding equipment for high-barrier PET film, comprising a machine body (1), characterized in that: The outer wall of the machine body (1) is provided with a control console (3), the inside of the machine body (1) is provided with a hot press plate (5), the outer wall of the machine body (1) is provided with a pressure gauge (4), and the inside of the machine body (1) is provided with a quick-release application assembly. The quick-release coating assembly includes a connecting rod (9), which is located inside the machine body (1). A paint roller (11) is rotatably connected to the outer wall of the connecting rod (9). A feeder (8) is attached to the outer wall of the paint roller (11). A sliding rod (13) is fixedly connected to one end of the connecting rod (9). A locking block (14) is fixedly connected to one end of the sliding rod (13). A spring (15) is fixedly connected to one end of the locking block (14). A locking block (12) is slidably connected to the outer wall of the sliding rod (13). A locking block (16) is attached to the outer wall of the sliding rod (13). A connecting rod (18) is fixedly connected to one end of the locking block (16). A locking shaft (19) is fixedly connected to one end of the connecting rod (18). A spring (17) is sleeved on the outer wall of the connecting rod (18).
2. The multilayer composite hot pressing molding equipment for high-barrier PET film according to claim 1, characterized in that: The body (1) is provided with a connecting rod three (21) inside. One end of the connecting rod three (21) is fixedly connected to a gear one (20), and the other end of the connecting rod three (21) is fixedly connected to a gear two (23). A presser (22) is provided on the outer wall of the gear two (23). A push rod (28) is fixedly connected to the lower surface of the presser (22). A connecting block two (29) is fixedly connected to the lower surface of the push rod (28). A support rod (27) is fixedly connected to the lower surface of the connecting block two (29). A connecting block one (26) is fixedly connected to the lower surface of the support rod (27). A spring three (24) is fixedly connected to the lower surface of the connecting block one (26). An up puller (25) is fixedly connected to the lower surface of the spring three (24).
3. The multilayer composite hot pressing molding equipment for high-barrier PET film according to claim 1, characterized in that: A control panel (2) is provided on one side of the body (1), and a support plate (6) is fixedly connected to the inner wall of the body (1).
4. The multilayer composite hot pressing molding equipment for high-barrier PET film according to claim 2, characterized in that: The outer wall of the support rod (27) is rotatably connected to a tension roller (10), and a conveyor belt (7) is provided inside the machine body (1).
5. The multilayer composite hot pressing molding equipment for high-barrier PET film according to claim 3, characterized in that: The pressure gauge (4) is located above the control console (3), and the feeder (8) is located inside the machine body (1).
6. The multilayer composite hot pressing molding equipment for high-barrier PET film according to claim 2, characterized in that: The locking shaft (19) is positioned above the locking block three (16), and the support rod (27) is positioned above the spring three (24).
7. The multilayer composite hot pressing molding equipment for high-barrier PET film according to claim 2, characterized in that: The feeder (8) is located above the connecting rod (9), and the gear (20) is located on one side of the outer wall of the machine body (1).
8. The multilayer composite hot pressing molding equipment for high-barrier PET film according to claim 3, characterized in that: The hot press plate (5) is positioned above the support plate (6), and the feeder (8) is positioned above the conveyor belt (7).