Protective film attachment production device

Abstract

The utility model belongs to the production technology field of protection film, provide a kind of protection film laminating production device, including rack, first roll stock component, second roll stock component, laminating mechanism and winding mechanism respectively installed on rack, first roll stock component includes drying furnace and a plurality of first guide roller of rotation connection with rack installed on the top of rack, each first guide roller is spaced apart and arranged on rack, second roll stock component includes second unwinding shaft and a plurality of second guide roller of rotation connection with rack, second unwinding shaft is arranged at one end of rack, each second guide roller is spaced apart and arranged on rack, laminating mechanism includes respectively with the first laminating roller and second laminating roller of rotation connection of rack, first laminating roller and second laminating roller are oppositely spaced apart and arranged in the middle part of rack, winding mechanism is arranged at one end of rack away from second unwinding shaft, for winding the protection film base material after laminating. The protection film laminating production device has the characteristics of simple and compact structure and stable production quality.

Description

Technical Field

[0001] This utility model relates to the field of protective film production technology, and in particular to a protective film lamination production device. Background Technology

[0002] Protective film is a material used to protect the surface of goods. It is applied to the surfaces of various metals, aluminum composite panels, plastic sheets, coated steel, stainless steel sheets, aluminum profiles, stone, glass, instruments, furniture, and other products to protect the surface during manufacturing, transportation, secondary processing, storage, and use, preventing contamination, scratches, and slowing down oxidation. The application of protective film not only improves the appearance quality of products and facilitates material processing, but also increases material utilization and reduces production costs.

[0003] Currently, protective films are generally composed of two or more layers of film laminated or bonded together. They are typically produced using two methods: blow molding or cast co-extrusion and lamination. Because laminated protective films possess the combined properties of each individual material, they exhibit good heat-sealing, airtightness, and heat resistance after lamination. They also have good printability and excellent mechanical properties, meeting usage requirements in terms of tensile strength, impact resistance, and bending resistance. Therefore, laminated protective films occupy a significant market share. However, the lamination process requires the films to be pressed and bonded smoothly and evenly to ensure a thorough and complete bond between the two or more layers. Existing lamination devices are complex in structure and cumbersome to operate. Furthermore, they often fail to efficiently and fully press and bond the two or more layers together, resulting in incomplete adhesion and even air bubbles and wrinkles on the laminated protective film, thus failing to meet the requirements for effective lamination.

[0004] The technical problem to be solved by this application is: how to solve the problems of complex structure and unstable production quality of existing protective film bonding devices. Summary of the Invention

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a protective film lamination production device, which has the characteristics of simple and compact structure and stable production quality.

[0006] The technical solution adopted by this utility model is as follows: a protective film laminating production device, including a frame, a first roll assembly, a second roll assembly, a laminating mechanism, and a winding mechanism respectively installed on the frame. The first roll assembly includes a drying oven installed on the top of the frame and a plurality of first guide rollers rotatably connected to the frame. The first guide rollers are spaced apart on the frame. The second roll assembly includes a second unwinding shaft and a plurality of second guide rollers rotatably connected to the frame. The second unwinding shaft is located at one end of the frame, and the second guide rollers are spaced apart on the frame. The laminating mechanism includes a first laminating roller and a second laminating roller rotatably connected to the frame respectively. The first laminating roller and the second laminating roller are spaced apart and arranged in the middle of the frame. The winding mechanism is located at the end of the frame away from the second unwinding shaft and is used to wind up the laminated protective film substrate.

[0007] The protective film laminating production apparatus of this application involves a first film material undergoing upstream processes such as unwinding and adhesive coating, followed by a drying oven to remove moisture from the first film material and adhesive. This prevents air bubbles from forming in the laminated protective film substrate. Furthermore, the residual heat from the dried first film material and adhesive enhances adhesion. In addition, the dried first film material is stretched and expanded by the first guide rollers, while the second film material, after being unwound from the second unwinding shaft, is stretched and expanded by the second guide rollers. The stretched and expanded first and second film layers are then introduced between the first and second laminating rollers for bonding to obtain the protective film substrate. This process avoids defects such as wrinkles and air bubbles in the laminated protective film substrate, thus improving the quality of protective film laminating production.

[0008] In some embodiments, the second roll assembly further includes a preheating box disposed between the second unwinding shaft and the first bonding roller.

[0009] Using the above technical solution, the preheating box can preheat the second film material, so that the first film material and the second film material can be bonded at a suitable temperature, further improving the bonding quality.

[0010] In some implementations, a smoke exhaust pipe is provided on the top of the preheating box, and a fan is provided on one side of the preheating box, with the fan connected to the smoke exhaust pipe.

[0011] By adopting the above technical solution, the preheating box can be equipped with a smoke exhaust pipe and a fan to discharge the gas generated during the heating process into the workshop for centralized treatment, thereby reducing air pollution in the production workshop.

[0012] In some embodiments, the second roll assembly further includes a fixed base and a movable frame. The fixed base is located at the end of the frame away from the take-up shaft, and the movable frame is slidably connected to the fixed base. The second unwind shaft is rotatably mounted on the movable frame, and the movable frame can reciprocate along the axial direction of the second unwind shaft.

[0013] By adopting the above technical solution, by setting the second unwinding shaft on the movable frame, the unwinding tension can be kept stable, wrinkles can be reduced or eliminated, and the second film material can be kept flat during the unwinding process.

[0014] In some embodiments, the first roll assembly further includes a first feeding power unit mounted on the frame, which drives all or part of the first guide rollers to rotate.

[0015] By adopting the above technical solution, the first feeding power component can maintain the tension of the first membrane material and prevent the second membrane material from wrinkling.

[0016] In some embodiments, the bonding mechanism further includes a bonding power member, which is connected to the first bonding roller and / or the second bonding roller for driving the first bonding roller and / or the second bonding roller to rotate.

[0017] By adopting the above technical solution, the first bonding roller and / or the second bonding roller are driven to rotate by the bonding power component, so that the first film material and the second film material are bonded under roller pressure, so that the film material is evenly pressed during bonding and the bonding quality is improved.

[0018] In some embodiments, the bonding mechanism further includes a plurality of third guide rollers rotatably connected to the frame, with each third guide roller spaced apart between the first bonding roller and the winding mechanism.

[0019] Using the above technical solution, the third guide roller can guide the laminated protective film substrate to flow along a preset path, and can also keep the laminated protective film substrate in a taut state to facilitate subsequent winding operations.

[0020] In some embodiments, the winding mechanism includes a winding seat, a winding shaft, and a winding power component. The winding seat is located at the end of the frame away from the second unwinding shaft. The winding shaft is rotatably connected to the winding seat. The winding power component is drively connected to the winding shaft and is used to drive the winding shaft to rotate.

[0021] Using the above technical solution, the winding power component drives the winding shaft to rotate, so that the laminated protective film substrate is wound onto the surface of the winding shaft.

[0022] In some embodiments, the winding mechanism further includes a swing frame, a pressure roller, and a swing power component. The swing frame is disposed at one end of the frame near the winding seat and is hinged to the frame. The pressure roller is rotatably disposed on the swing frame, and the swing power component is used to drive the swing frame to rotate so that the pressure roller moves closer to or away from the winding shaft.

[0023] By adopting the above technical solution, the pressure roller keeps in contact with the protective film substrate on the surface of the winding shaft during the winding process, which can keep the protective film substrate in a flat and tight state during the winding process, thereby improving the winding quality of the protective film substrate.

[0024] In some embodiments, the winding mechanism further includes a curved roller disposed on a swing frame, the curved roller being rotatably connected to the swing frame, and the curved roller being disposed on the side of the pressure roller close to the first bonding roller.

[0025] By adopting the above technical solution, the bending roller can improve the flatness of the protective film substrate and assist in correction, thus ensuring the quality of the protective film substrate winding. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a protective film laminating production device according to a preferred embodiment of the present invention; Figure 2 for Figure 1 The diagram shows another view of the protective film lamination production device. Figure 3 for Figure 2 The diagram shows a cross-sectional view of the protective film lamination production device along its central axis.

[0027] In the diagram: 100, Protective film laminating production device; 10, Frame; 20, First roll assembly; 21, Drying oven; 22, First guide roller; 23, First feeding power component; 30, Second roll assembly; 31, Second unwinding shaft; 32, Second guide roller; 33, Preheating box; 34, Exhaust pipe; 35, Fan; 36, Fixed base; 37, Moving frame; 40, Laminating mechanism; 41, First laminating roller; 42, Second laminating roller; 43, Laminating power component; 44, Third guide roller; 50, Rewinding mechanism; 51, Rewinding seat; 52, Rewinding shaft; 53, Rewinding power component; 54, Swinging frame; 55, Pressure roller; 56, Swinging power component; 57, Bending roller. Detailed Implementation

[0028] 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.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. When the number of elements is referred to as "multiple," it can be any number of two or more. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] Please see Figure 1 and Figure 3 A protective film laminating production apparatus 100, a preferred embodiment of the present invention, includes a frame 10, a first roll assembly 20, a second roll assembly 30, a laminating mechanism 40, and a winding mechanism 50, all mounted on the frame 10. The first roll assembly 20 includes a drying oven 21 mounted on the top of the frame 10 and a plurality of first guide rollers 22 rotatably connected to the frame 10. The first guide rollers 22 are spaced apart on the frame 10. The second roll assembly 30 includes a second unwinding shaft 31 and a plurality of second guide rollers 32 rotatably connected to the frame 10. The second unwinding shaft 31 is located at one end of the frame 10, and the second guide rollers 32 are spaced apart on the frame 10. The laminating mechanism 40 includes a first laminating roller 41 and a second laminating roller 42 rotatably connected to the frame 10. The first laminating roller 41 and the second laminating roller 42 are spaced apart and positioned opposite each other in the middle of the frame 10. The winding mechanism 50 is located at the end of the frame 10 away from the second unwinding shaft 31 and is used to wind up the laminated protective film substrate. The protective film laminating production apparatus 100 of this application involves a first film material undergoing upstream processes such as unwinding and adhesive application. The first film material and adhesive are then dried in a drying oven 21 to remove moisture, preventing air bubbles from forming on the laminated protective film substrate. The residual heat from the dried first film material and adhesive further enhances adhesion. Additionally, the dried first film material is stretched and expanded by the first guide rollers 22, while the second film material, after being unwound from the second unwinding shaft 31, is stretched and expanded by the second guide rollers 32. The stretched and expanded first and second film layers are then introduced between the first laminating roller 41 and the second laminating roller 42 for bonding to obtain the protective film substrate. This process avoids defects such as wrinkles and air bubbles on the laminated protective film substrate, improving the quality of the protective film laminating production.

[0032] Optionally, the drying oven 21 is a tunnel oven, and the extension length of the drying oven 21 can be set according to the drying efficiency and site requirements, without specific limitations. Similarly, the number and setting position of the first guide rollers 22 can also be increased, decreased, and adjusted according to actual needs, without limiting the number and setting position as shown in the attached figure.

[0033] To further improve the bonding quality of the protective film substrate, the second roll assembly 30 also includes a preheating box 33, which is disposed between the second unwinding shaft 31 and the first bonding roller 41. The preheating box 33 can preheat the second film material, so that the first film material and the second film material can be bonded at a suitable temperature, further improving the bonding quality.

[0034] Furthermore, such as Figure 1 As shown, to reduce air pollution, a smoke exhaust pipe 34 is installed on the top of the preheating box 33, and a fan 35 is installed on one side of the preheating box 33, with the fan 35 connected to the smoke exhaust pipe 34. By equipping the preheating box 33 with the smoke exhaust pipe 34 and the fan 35, the gases generated during the heating process can be discharged from the workshop for centralized treatment, thereby reducing air pollution in the production workshop.

[0035] Furthermore, the second roll assembly 30 also includes a fixed base 36 and a movable frame 37. The fixed base 36 is located at the end of the frame 10 away from the take-up shaft 52. The movable frame 37 is slidably connected to the fixed base 36. The second unwinding shaft 31 is rotatably mounted on the movable frame 37, and the movable frame 37 can reciprocate along the axial direction of the second unwinding shaft 31. By mounting the second unwinding shaft 31 on the movable frame 37, the unwinding tension can be kept stable, wrinkles can be reduced or eliminated, and the second film material can be kept flat during unwinding.

[0036] Optionally, to maintain tension during the conveying of the first film material, the first roll assembly 20 further includes a first feeding power component 23, which is mounted on the frame 10 and drives all or part of the first guide rollers 22 to rotate. The first feeding power component 23 can maintain tension in the first film material and prevent wrinkles from forming in the second film material.

[0037] In this embodiment, the first feeding power component 23 is a motor.

[0038] Please refer to the following: Figure 1 The bonding mechanism 40 also includes a bonding power component 43, which is connected to the first bonding roller 41 and / or the second bonding roller 42 for driving the first bonding roller 41 and / or the second bonding roller 42 to rotate. By driving the first bonding roller 41 and / or the second bonding roller 42 to rotate through the bonding power component 43, the first film material and the second film material are bonded under roller pressure, so that the film material is evenly compressed during bonding, thereby improving the bonding quality.

[0039] Optionally, the power component 43 can be a motor.

[0040] Preferably, the bonding mechanism 40 further includes a plurality of third guide rollers 44 rotatably connected to the frame 10, with each third guide roller 44 spaced apart between the first bonding roller 41 and the winding mechanism 50. The third guide rollers 44 can guide the bonded protective film substrate along a preset path and can also keep the bonded protective film substrate in a taut state to facilitate subsequent winding operations.

[0041] Please see Figure 2 and Figure 3 Specifically, the winding mechanism 50 includes a winding seat 51, a winding shaft 52, and a winding power component 53. The winding seat 51 is located at the end of the frame 10 away from the second unwinding shaft 31. The winding shaft 52 is rotatably connected to the winding seat 51. The winding power component 53 is drively connected to the winding shaft 52 and is used to drive the winding shaft 52 to rotate. The winding power component 53 drives the winding shaft 52 to rotate, so that the laminated protective film substrate is wound onto the surface of the winding shaft 52.

[0042] Furthermore, the winding mechanism 50 also includes a swing frame 54, a pressure roller 55, and a swing power component 56. The swing frame 54 is located at one end of the frame 10 near the winding seat 51 and is hinged to the frame 10. The pressure roller 55 is rotatably mounted on the swing frame 54. The swing power component 56 drives the swing frame 54 to rotate, so that the pressure roller 55 moves closer to or away from the winding shaft 52. During the winding process, the pressure roller 55 maintains contact with the protective film substrate on the surface of the winding shaft 52, which can keep the protective film substrate in a flat and tight state during the winding process, thereby improving the winding quality of the protective film substrate.

[0043] Furthermore, the winding mechanism 50 also includes a curved roller 57 mounted on the swing frame 54. The curved roller 57 is rotatably connected to the swing frame 54 and is positioned on the side of the pressure roller 55 near the first bonding roller 41. The curved roller 57 can improve the flatness of the protective film substrate and assist in correction, ensuring the quality of the protective film substrate winding.

[0044] Optionally, the swing power component 56 is a pneumatic cylinder or a hydraulic cylinder, and the winding power component 53 is a motor.

[0045] Finally, it should be noted that the above description is merely 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 protective film laminating production apparatus, comprising a frame (10), a first roll assembly (20), a second roll assembly (30), a laminating mechanism (40), and a winding mechanism (50) respectively mounted on the frame (10), characterized in that, The first roll assembly (20) includes a drying oven (21) mounted on the top of the frame (10) and a plurality of first guide rollers (22) rotatably connected to the frame (10). Each of the first guide rollers (22) is spaced apart on the frame (10). The second roll assembly (30) includes a second unwinding shaft (31) and a plurality of second guide rollers (32) rotatably connected to the frame (10). The second unwinding shaft (31) is located at one end of the frame (10), and each of the second guide rollers (32) is spaced apart on the frame (10). The bonding mechanism (40) includes a first bonding roller (41) and a second bonding roller (42) rotatably connected to the frame (10). The first bonding roller (41) and the second bonding roller (42) are spaced apart relative to each other in the middle of the frame (10). The winding mechanism (50) is located at one end of the frame (10) away from the second unwinding shaft (31) and is used to wind up the bonded protective film substrate.

2. The protective film laminating production apparatus according to claim 1, characterized in that, The second roll assembly (30) also includes a preheating box (33) disposed between the second unwinding shaft (31) and the first bonding roller (41).

3. The protective film lamination production apparatus according to claim 2, characterized in that, The preheating box (33) is provided with a smoke exhaust pipe (34) at the top, and a fan (35) is provided on one side of the preheating box (33). The fan (35) is connected to the smoke exhaust pipe (34).

4. The protective film lamination production apparatus according to claim 1, characterized in that, The second roll assembly (30) also includes a fixed seat (36) and a movable frame (37). The fixed seat (36) is located at one end of the frame (10) away from the take-up shaft (52). The movable frame (37) is slidably connected to the fixed seat (36). The second unwinding shaft (31) is rotatably mounted on the movable frame (37). The movable frame (37) can reciprocate along the axial direction of the second unwinding shaft (31).

5. The protective film lamination production apparatus according to claim 1, characterized in that, The first roll assembly (20) also includes a first feeding power unit (23), which is mounted on the frame (10) and drives all or part of the first guide rollers (22) to rotate.

6. The protective film lamination production apparatus according to claim 1, characterized in that, The bonding mechanism (40) further includes a bonding power component (43), which is connected to the first bonding roller (41) and / or the second bonding roller (42) for driving the first bonding roller (41) and / or the second bonding roller (42) to rotate.

7. The protective film lamination production apparatus according to claim 1, characterized in that, The bonding mechanism (40) further includes a plurality of third guide rollers (44) rotatably connected to the frame (10), and each of the third guide rollers (44) is spaced apart between the first bonding roller (41) and the winding mechanism (50).

8. The protective film laminating production apparatus according to claim 1, characterized in that, The winding mechanism (50) includes a winding seat (51), a winding shaft (52), and a winding power component (53). The winding seat (51) is located at one end of the frame (10) away from the second unwinding shaft (31). The winding shaft (52) is rotatably connected to the winding seat (51). The winding power component (53) is drively connected to the winding shaft (52) and is used to drive the winding shaft (52) to rotate.

9. The protective film laminating production apparatus according to claim 8, characterized in that, The winding mechanism (50) further includes a swing frame (54), a pressure roller (55) and a swing power component (56). The swing frame (54) is located at one end of the frame (10) near the winding seat (51). The swing frame (54) is hinged to the frame (10). The pressure roller (55) is rotatably mounted on the swing frame (54). The swing power component (56) is used to drive the swing frame (54) to rotate so that the pressure roller (55) moves closer to or away from the winding shaft (52).

10. The protective film laminating production apparatus according to claim 9, characterized in that, The winding mechanism (50) further includes a curved roller (57) disposed on the swing frame (54), the curved roller (57) being rotatably connected to the swing frame (54), and the curved roller (57) being disposed on the side of the pressure roller (55) close to the first bonding roller (41).

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