Position limiting structure for polycarbonate plate film covering

Abstract

The utility model relates to the technical field of limiting structure, and disclose a limiting structure for polycarbonate board film covering, the utility model scheme, including high density polyethylene board, the lower part of high density polyethylene board is provided with two -way screw rod, the outside wall of two -way screw rod even screw joint has two groups of internal thread sliding plate, the utility model discloses the limiting plate design of being slidable relatively, cooperation hand wheel drive adjusts the interval, can nimble adaptation different width's polycarbonate board, the flexible contact of silica gel pad outside limiting plate avoids rigid friction damage polycarbonate board surface, and can through the slight elasticity of silica gel pad fill the gap between polycarbonate board and silica gel pad, effectively prevent polycarbonate board in dynamic conveying left and right deviation, guarantee film alignment accuracy, and the surface of high density polyethylene board is smooth, low friction coefficient characteristic, realizes the limiting at the same time, will not produce additional blocking to the displacement of polycarbonate board.

Description

Technical Field

[0001] This utility model belongs to the field of limiting structure technology, specifically a limiting structure for polycarbonate sheet coating. Background Technology

[0002] Polycarbonate sheets are widely used in construction, electronics, and other fields due to their good light transmittance and high impact resistance. However, their surfaces are easily scratched and contaminated, making lamination a crucial process for ensuring product quality. In continuous lamination production, the sheets need to move continuously with the winding machine. If the positioning accuracy is insufficient, lateral deviations can easily occur, leading to misalignment of the film, wrinkling at the edges, or even surface damage caused by rigid friction between the sheets and the equipment, directly affecting the product qualification rate.

[0003] Traditional limiting structures often have two problems: first, the fixed baffle has poor adaptability and is difficult to be compatible with polycarbonate sheets of different widths; second, the rigid contact or friction control is not good, either the limiting function is lost due to excessive gap, or the sheet conveying is obstructed and the surface is scratched due to excessive friction. To address these issues, we propose a limiting structure for polycarbonate sheet coating. Utility Model Content

[0004] The purpose of this invention is to provide a limiting structure for coating polycarbonate sheets, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a limiting structure for polycarbonate sheet coating, comprising a high-density polyethylene sheet, a bidirectional screw rod disposed below the high-density polyethylene sheet, two sets of internally threaded sliding plates uniformly screwed onto the outer wall of the bidirectional screw rod, two sets of sliding plates uniformly disposed on the top of the internally threaded sliding plates, the sliding plates penetrating the top of the high-density polyethylene sheet and connecting to a limiting plate, a silicone pad disposed on the outer side of the limiting plate, a hexagonal prism disposed on the front side of the bidirectional screw rod, a handwheel sleeved on the outer side of the hexagonal prism, a limiting disc disposed on the front side of the hexagonal prism, a high-strength spring disposed between the handwheel and the limiting disc, a locking hole opened on the front side of the hexagonal prism, a pin installed between the handwheel and the hexagonal prism, a spring installed between the pin and the handwheel, and the pin corresponding to the locking hole.

[0006] Preferably, the bottom of the high-density polyethylene board is provided with a base plate, and two sets of sliding grooves are evenly opened through the top of the base plate and the high-density polyethylene board. The sliding plate is disposed in the sliding groove, and a groove is opened on the front side of the base plate. The handwheel is disposed in the groove.

[0007] Preferably, the handwheel has a hexagonal slot through its front side, the hexagonal prism has a hexagonal slot through its front side, and the high-strength spring is located on the outer ring of the hexagonal prism.

[0008] Preferably, the groove is provided with an anti-slip inner liner, and the inner sidewall of the anti-slip inner liner is in contact with the outer sidewall of the handwheel.

[0009] Preferably, the handwheel has a handle inside, the pin is located at the bottom of the handle, the top of the hexagonal slot has a through hole, the bottom of the pin has a through hole that fits with the top of the hexagonal prism, the spring is located between the handle and the handwheel and is located on the outer ring of the pin, and the spring is in a stretched state.

[0010] Preferably, two sets of support sleeves are evenly sleeved on the outer side of the bidirectional lead screw, and the two sets of support sleeves are evenly arranged at the bottom of the base plate. A set of support plates is provided on both the left and right sides of the bottom of the base plate, and two sets of fixing ears are evenly arranged on the opposite sides of the two sets of support plates.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: the relatively sliding limiting plate design, combined with the handwheel drive to adjust the spacing, can flexibly adapt to polycarbonate sheets of different widths; the silicone pad on the outside of the limiting plate forms a flexible contact, which not only avoids rigid friction damage to the surface of the polycarbonate sheet, but also fills the gap between the polycarbonate sheet and the silicone pad with slight elasticity, effectively preventing the polycarbonate sheet from shifting left and right during dynamic conveying, ensuring the accuracy of film alignment, and combined with the smooth surface and low coefficient of friction of the high-density polyethylene sheet, it does not produce additional resistance to the displacement of the polycarbonate sheet while achieving the limiting, ensuring synchronization with the traction rhythm of the winding machine and avoiding conveying jams.

[0012] The handwheel drive, combined with quick locking and unlocking functions, allows for the adjustment and fixing of the baffle spacing without the need for complex tools, significantly reducing changeover time. It is especially suitable for small-batch, multi-specification production scenarios, improving operational efficiency. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram: Figure 1 This is a schematic diagram of the limiting structure for polycarbonate sheet coating of this utility model; Figure 2 This is a front sectional view of the limiting structure for polycarbonate sheet coating of this utility model; Figure 3 This is a right-side cross-sectional view of the limiting structure for polycarbonate sheet coating of this utility model.

[0015] In the diagram: 1. Base plate; 11. Internal threaded sliding plate; 12. Support plate; 13. Fixing ear; 14. High-density polyethylene plate; 15. Limiting plate; 16. Silicone pad; 17. Handwheel; 18. Limiting disc; 19. Two-way lead screw; 2. Anti-slip inner lining pad; 21. High-strength spring; 22. Handle; 23. Pin; 24. Spring; 25. Locking hole; 26. Hexagonal prism; 27. Support sleeve; 3. Sliding plate. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-3 A limiting structure for polycarbonate sheet coating includes a high-density polyethylene sheet 14. A bidirectional screw 19 is rotatably mounted below the high-density polyethylene sheet 14. Two sets of internally threaded sliding plates 11 are evenly screwed onto the outer wall of the bidirectional screw 19. Two sets of sliding plates 3 are evenly fixed on the top of the internally threaded sliding plates 11. The sliding plates 3 penetrate the top of the high-density polyethylene sheet 14 and connect to a limiting plate 15. A silicone pad 16 is fixed on the outer side of the limiting plate 15. When the bidirectional screw 19 rotates, it drives the two sets of internally threaded sliding plates 11 to move inward synchronously. This causes the limiting plate 15 to move inward via the sliding plates 3. By adjusting the position of the limiting plate 15, it can be adapted to polycarbonate sheets of different widths. The front and rear sides of the polycarbonate sheet are limited by the limiting plate 15. The silicone pad 16 can prevent hard friction between the polycarbonate sheet and the limiting plate 15, thereby protecting the polycarbonate sheet from scratches. A hexagonal prism 26 is fixedly installed on the front side of the bidirectional lead screw 19. A handwheel 17 is slidably sleeved on the outer side of the hexagonal prism 26. A limiting plate 18 is fixedly installed on the front side of the hexagonal prism 26. A high-strength spring 21 is fixedly installed between the handwheel 17 and the limiting plate 18. A locking hole 25 is opened on the front side of the hexagonal prism 26. A pin 23 is installed between the handwheel 17 and the hexagonal prism 26. A spring 24 is installed between the pin 23 and the handwheel 17. The pin 23 corresponds to the locking hole 25.

[0018] A base plate 1 is fixedly installed at the bottom of a high-density polyethylene board 14. Two sets of sliding grooves are evenly opened through the top of the base plate 1 and the high-density polyethylene board 14. A sliding plate 3 is fixedly installed in the sliding groove. A groove is opened on the front side of the base plate 1. A handwheel 17 is rotatably installed in the groove. A hexagonal slot is opened through the front side of the handwheel 17. A hexagonal slot is opened through the front side of the hexagonal prism 26. A high-strength spring 21 is located on the outer ring of the hexagonal prism 26. An anti-slip inner liner 2 is fixedly installed in the groove. The inner side wall of the anti-slip inner liner 2 is in contact with the outer side wall of the handwheel 17. The inner side of the handwheel 17... A handle 22 is slidably mounted on the part of the lock. A pin 23 is fixedly mounted on the bottom of the handle 22. A through hole is opened through the top of the hexagonal slot. The bottom through hole of the pin 23 fits against the top of the hexagonal prism 26. A spring 24 is fixedly mounted between the handle 22 and the handwheel 17, and is located on the outer ring of the pin 23. The spring 24 is in a stretched state. By pulling the handwheel 17 forward, it moves forward along the outer side of the hexagonal prism 26. At this time, the handwheel 17 will compress the high-strength spring 21. When the handwheel 17 moves forward and separates from the anti-slip inner liner 2, the pin 23 will engage with the lock. With the fixed holes 25 aligned, the spring 24 uses its own rebound force to drive the pin 23 through the handle 22 into the locking hole 25, thereby locking the handwheel 17 in position. Then, rotating the handwheel 17 will drive the double-acting screw 19 to rotate through the hexagonal prism 26. Two sets of support sleeves 27 are evenly rotated and sleeved on the outer side of the double-acting screw 19. The two sets of support sleeves 27 are evenly fixedly set at the bottom of the base plate 1. A set of support plates 12 is fixedly set on both the left and right sides of the bottom of the base plate 1. Two sets of fixing ears 13 are evenly fixedly set on the opposite sides of the two sets of support plates 12. The support sleeve 27 supports the rotation of the bidirectional lead screw 19. The entire limiting structure is fixed on the working table of the laminating machine by means of bolts through the fixing lug 13 and screwed into the threaded hole. During lamination, the polycarbonate sheet and protective film are guided onto the high-density polyethylene sheet 14 by the external winding machine for dynamic lamination. The limiting plate 15 is located on the outside of the polycarbonate sheet. Thanks to the smoothness of the surface of the high-density polyethylene sheet 14, the polycarbonate sheet can move smoothly and steadily on the high-density polyethylene sheet 14.

[0019] Working principle: By using bolts to thread the fixing lug 13 into the threaded holes on the external laminating machine's worktable, the entire limiting structure is fixed to the laminating machine's worktable. During lamination, the polycarbonate sheet and protective film are guided onto the high-density polyethylene sheet 14 by the external winding machine for dynamic lamination. The limiting plate 15 is positioned on the outside of the polycarbonate sheet. Benefiting from the smoothness of the surface of the high-density polyethylene sheet 14, the polycarbonate sheet can move smoothly and steadily on the high-density polyethylene sheet 14. By pulling the handwheel 17 forward, it moves forward along the outside of the hexagonal prism 26. At this time, the handwheel 17 will compress the high-strength spring 21. After the handwheel 17 moves forward and separates from the anti-slip inner liner 2, the pin 2... 3 will align with the locking hole 25. At this time, the spring 24 uses its own rebound force to drive the pin 23 to insert into the locking hole 25 through the handle 22, thereby locking the position of the handwheel 17. Then, turning the handwheel 17 will drive the double-acting screw 19 to rotate through the hexagonal prism 26. When the double-acting screw 19 rotates, it will drive the two sets of internal threaded slide plates 11 to move inward synchronously. This will drive the limiting plate 15 to move inward through the slide plate 3. By adjusting the position of the limiting plate 15, it can be adapted to polycarbonate plates of different widths. The limiting plate 15 limits the front and rear sides of the polycarbonate plate. The silicone pad 16 can prevent hard friction between the polycarbonate plate and the limiting plate 15, thereby protecting the polycarbonate plate from scratches.

[0020] Once the position of the limiting plate 15 is determined, by pulling the handle 22 upward, the pin 23 is separated from the locking hole 25. The high-strength spring 21 can then use its own rebound to push the handwheel 17 backward into the groove of the bottom plate 1 and make it tightly fit with the anti-slip inner liner 2, thereby fixing the handwheel 17 in the groove and preventing the handwheel 17 from rotating and affecting the limiting accuracy of the limiting plate 15.

Claims

1. A limiting structure for coating polycarbonate sheets, characterized in that, The system includes a high-density polyethylene (HDPE) sheet (14), with a bidirectional screw rod (19) located below the HDPE sheet (14). Two sets of internally threaded sliding plates (11) are evenly screwed onto the outer wall of the bidirectional screw rod (19). Two sets of sliding plates (3) are evenly arranged on the top of the internally threaded sliding plates (11). The sliding plates (3) penetrate the top of the HDPE sheet (14) and connect to a limiting plate (15). A silicone pad (16) is provided on the outer side of the limiting plate (15). A hexagonal prism is provided on the front side of the bidirectional screw rod (19). 26), a handwheel (17) is sleeved on the outside of the hexagonal prism (26), a limiting plate (18) is provided on the front side of the hexagonal prism (26), a high-strength spring (21) is provided between the handwheel (17) and the limiting plate (18), a locking hole (25) is opened on the front side of the hexagonal prism (26), a pin (23) is installed between the handwheel (17) and the hexagonal prism (26), a spring (24) is installed between the pin (23) and the handwheel (17), and the pin (23) corresponds to the locking hole (25).

2. The limiting structure for polycarbonate sheet coating according to claim 1, characterized in that: The bottom of the high-density polyethylene board (14) is provided with a base plate (1), and two sets of sliding grooves are evenly opened through the top of the base plate (1) and the high-density polyethylene board (14). The sliding plate (3) is set in the sliding groove, and a groove is opened on the front side of the base plate (1). The handwheel (17) is set in the groove.

3. The limiting structure for polycarbonate sheet coating according to claim 2, characterized in that: The handwheel (17) has a hexagonal slot through the front side, the hexagonal prism (26) has a hexagonal slot through the front side, and the high-strength spring (21) is located on the outer ring of the hexagonal prism (26).

4. The limiting structure for polycarbonate sheet coating according to claim 3, characterized in that: An anti-slip inner liner (2) is provided in the groove, and the inner sidewall of the anti-slip inner liner (2) is in contact with the outer sidewall of the handwheel (17).

5. The limiting structure for polycarbonate sheet coating according to claim 4, characterized in that: The handwheel (17) has a handle (22) inside. The pin (23) is located at the bottom of the handle (22). The top of the hexagonal slot has a through hole. The bottom of the pin (23) has a through hole that fits against the top of the hexagonal prism (26). The spring (24) is located between the handle (22) and the handwheel (17) and is located on the outer ring of the pin (23). The spring (24) is in a stretched state.

6. The limiting structure for polycarbonate sheet coating according to claim 1, characterized in that: Two sets of support sleeves (27) are evenly sleeved on the outer side of the bidirectional lead screw (19). The two sets of support sleeves (27) are evenly arranged at the bottom of the base plate (1). A set of support plates (12) is arranged on both the left and right sides of the bottom of the base plate (1). Two sets of fixing ears (13) are evenly arranged on the opposite sides of the two sets of support plates (12).

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