High-efficiency film coating device for PVC wallboard

Abstract

The utility model relates to a PVC wallboard high -efficient laminating device, aims at solving the current traditional device's laminating pressure mostly is fixed value, cannot self -adaptation regulation pressure, when the board thickness increases, the extrusion force of pressure roller and board will increase significantly with the thickness, easy to lead to the protection film to appear tensile deformation or breakage because of the technical problem of too big stress, including support frame and cross bar, the cross bar rotation is connected between two side plates, and the surface fixed connection of cross bar has two movable frames, two movable frames between fixed connection has the fixed link, the central rotation of fixed link is connected with the inductive wheel, and the fixed link simultaneously penetrates the lower end of two adjusting frames and is connected with adjusting frame rotation, when the board thickness increases, the compression of auxiliary spring reduces, releases partial elasticity, so when extruding roller lifts along with the board, will not extrude extruding spring excessively, balances the extrusion degree of extruding spring, effectively avoids the damage of film to too big pressure.

Description

Technical Field

[0001] This utility model relates to the field of PVC wall panel processing technology, specifically to a high-efficiency PVC wall panel coating device. Background Technology

[0002] In the field of building decoration materials, PVC wall panels are widely used in interior wall decoration due to their properties such as moisture resistance, wear resistance, and easy cleaning. To further improve the surface performance of PVC wall panels, such as scratch resistance, aging resistance, and aesthetics, a film coating treatment is required during the production process. The protective film is applied to the surface of the wall panel through hot pressing or adhesive bonding to form a composite protective layer.

[0003] Current PVC wall panel laminating devices have significant drawbacks when processing panels of varying thicknesses: traditional devices typically use a fixed laminating pressure, which cannot be adaptively adjusted. As the panel thickness increases, the squeezing force between the pressure roller and the panel increases significantly, easily causing the protective film to stretch, deform, or break due to excessive stress, thus affecting the stability of the laminating effect for panels of different specifications. Therefore, a new technical solution is proposed to address this issue. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a high-efficiency PVC wall panel coating device to solve the technical problems that the coating pressure of the current traditional device is mostly a fixed value and cannot be adaptively adjusted. When the thickness of the board increases, the squeezing force between the pressure roller and the board will increase significantly with the increase of thickness, which will easily lead to the protective film being stretched, deformed or damaged due to excessive force.

[0005] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: A high-efficiency PVC wall panel coating device is designed, including a support frame and a crossbar. The crossbar is rotatably connected between two side panels, and two movable frames are fixedly connected to the surface of the crossbar. A fixed rod is fixedly connected between the two movable frames. A sensing wheel is rotatably connected to the center of the fixed rod. The fixed rod simultaneously passes through the lower ends of two adjusting frames and is rotatably connected to the adjusting frames. Several counterweight rods are fixedly connected between the two adjusting frames. The upper end of the adjusting frame is located below the top plate, and a constraint rod fixedly connected to the top of the adjusting frame passes through a constraint groove opened on the surface of the top plate. A constraint head is fixedly connected to the top of the constraint rod.

[0006] In this design, as the thickness of the sheet increases, the induction wheel drives the entire fixed rod and movable frame to rotate around the crossbar, causing the adjustment frame to move upward, which in turn pushes the top plate upward, reducing the compression of the auxiliary spring and releasing some of the elastic force. This prevents the extrusion roller from over-extruding the extrusion spring when the extrusion roller is lifted along with the sheet, thus balancing the degree of extrusion spring compression and effectively preventing the membrane from being damaged by excessive pressure. Furthermore, it can automatically adjust according to the thickness of the sheet, making it convenient and practical.

[0007] Preferably, the two side plates are fixedly connected to the side walls of the two support frames, and the two support frames are fixedly connected to the front and rear edges of the top of the base. A vertical rod is fixedly connected between the upper and lower inner walls of the support frames, and two top plates and one bottom plate are provided between the front and rear support frames.

[0008] In practical applications, the two side plates are fixed to the side walls of the support frame to provide rotational support for the crossbar; the support frame is fixed to the edge of the base to serve as the load-bearing frame of the entire device; the vertical rod connects the upper and lower inner walls of the support frame to provide vertical sliding guidance for the top and bottom plates; the top and bottom plates form an upper and lower working area for the film coating operation between the front and rear support frames, working together to adjust and apply the film coating pressure to the PVC wall panel.

[0009] Preferably, the front and rear end surfaces of the base plate are respectively penetrated by vertical rods on the inner side of the front and rear support frames, and the base plate is slidably connected to the vertical rods. A slot is provided at the center of the top of the base plate, and an extrusion roller is rotatably connected between the front and rear inner sidewalls of the base plate.

[0010] In practical applications, the sliding characteristics of the base plate allow it to flexibly adapt to plates of different thicknesses, ensuring that the extrusion roller is always in contact with the plate. The extrusion roller is rotatably connected to the inside of the base plate, and it contacts and rolls with the plate surface as the plate passes through, pressing the protective film onto the wall panel surface. The cooperation between the slot and the plug enables the quick connection between the base plate and the pressure assembly above, facilitating the assembly and maintenance of the device.

[0011] Preferably, the two top plates are respectively penetrated by vertical rods on the inner sides of the front and rear support frames, and the top plates are slidably connected to the vertical rods. An auxiliary spring is sleeved on the surface of the vertical rod above the top plate, and the two top plates are fixedly connected by a central rod.

[0012] In practical applications, the auxiliary spring is sleeved on the vertical rod, and its elasticity changes with the rise and fall of the top plate. Combined with the weight of the configuration block, the top plate can be quickly pushed down when the plate thickness decreases, and the compression of the compression spring can be readjusted to make the pressure on the bottom plate as stable as possible.

[0013] Preferably, the central rod passes through the rotating block and is rotatably connected to the rotating block. Telescopic rods are fixedly connected to both the upper and lower surfaces of the rotating block. Insert blocks are fixedly connected to the telescopic ends of the telescopic rods, and compression springs with different elastic forces are respectively sleeved on the surfaces of the upper and lower telescopic rods.

[0014] In practical applications, the rotating block rotates around the central rod, which can switch between the telescopic rods and compression springs on the upper and lower sides. Compression springs with different elastic forces can adapt to plates of different thicknesses, greatly improving the versatility of the device. The cooperation between the rotating block and the telescopic rod enables the rapid switching of springs, reducing operation time.

[0015] Preferably, the top of the top plate on both sides of the rotating block is fixedly connected with a protrusion, and the rotating block and the protrusion are simultaneously penetrated by a pin and slidably connected to the pin.

[0016] In practical applications, the protrusion is fixed to the top of the top plate, corresponding to the hole on the rotating block; the pin passes through the rotating block and the protrusion, fixing the position of the rotating block by friction, preventing it from rotating on its own due to vibration or force during the coating process, and ensuring that the selected compression spring remains in working condition.

[0017] Preferably, a conveying assembly is provided in the center of the base, and screws are threadedly connected to the front and rear outer walls of the base below the support frame. The screws penetrate the surface of the base and are rotatably connected to the limiting plate through the bearing seat. Slide rods are fixedly connected to both ends of the limiting plate, and the slide rods penetrate the surface of the base and are slidably connected to the base.

[0018] In practical applications, the conveying assembly is located in the center of the base. The rotation of the conveying rollers drives the PVC wall panel to move continuously, realizing the assembly line operation of the film coating process. When the screw is rotated, its threaded engagement with the base drives the limiting plate to move laterally. The slide bar provides lateral sliding guidance for the limiting plate, so that the distance between the two limiting plates can be adapted to the board of different widths, and the board is laterally positioned.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. This utility model, by setting up a movable frame and a fixed rod, allows the sensing wheel to drive the entire fixed rod and movable frame to rotate around the crossbar as the thickness of the sheet increases. This causes the adjusting frame to move upward, which in turn pushes the top plate upward, reducing the compression of the auxiliary spring and releasing some of the elastic force. In this way, the extrusion roller will not over-extract the extrusion spring when the extrusion roller is raised with the sheet, balancing the degree of extrusion spring compression and effectively preventing the film from being damaged by excessive pressure. Furthermore, it can automatically adjust according to the thickness of the sheet, making it convenient and practical.

[0021] 2. This utility model features a rotating block in the center of the top plate and two springs with different elastic forces on the upper and lower sides. A plug is also provided at the other end of the compression spring. During installation, the plug is simply inserted into the slot on the bottom plate and fixed with bolts, which is convenient and quick. Different compression springs can be used for coating of sheets with different thicknesses, thus improving the versatility of the device. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a partial structural schematic diagram of the present invention;

[0024] Figure 3 This is a structural schematic diagram of the support frame of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the adjustment frame of this utility model;

[0026] Figure 5 This is a schematic diagram of the telescopic rod structure of this utility model;

[0027] In the diagram: 1. Base; 101. Conveying assembly; 2. Limiting plate; 201. Screw; 202. Slide rod; 3. Support frame; 301. Vertical rod; 302. Auxiliary spring; 4. Base plate; 401. Extrusion roller; 402. Slot; 5. Top plate; 501. Center rod; 502. Constraint groove; 503. Protrusion; 6. Side plate; 601. Horizontal rod; 7. Movable frame; 8. Fixed rod; 801. Induction wheel; 9. Adjusting frame; 901. Constraint rod; 902. Constraint head; 10. Counterweight rod; 11. Rotating block; 111. Pin; 12. Telescopic rod; 121. Extrusion spring; 13. Insert block. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0029] Example 1: A high-efficiency film coating device for PVC wall panels, see [link / reference] Figures 1 to 5 It includes a support frame 3 and a crossbar 601. The crossbar 601 is rotatably connected between two side plates 6. The two side plates 6 are respectively fixedly connected to the side walls of the two support frames 3. Two movable frames 7 are fixedly connected to the surface of the crossbar 601. A fixed rod 8 is fixedly connected between the two movable frames 7. A sensing wheel 801 is rotatably connected to the center of the fixed rod 8. The fixed rod 8 also passes through the lower end of the two adjusting frames 9 and is rotatably connected to the adjusting frames 9.

[0030] In this technical solution, when the PVC wall panel is conveyed by the conveying assembly 101 to the area below the sensing wheel 801, the top surface of the wall panel contacts the sensing wheel 801, and the sensing wheel 801 rolls as the wall panel moves. If the wall panel thickness increases, it will push the sensing wheel 801 upward, causing the fixed rod 8 and the movable frame 7 to rotate upward around the crossbar 601. This causes the adjusting frame 9 to swing upward synchronously with the fixed rod 8 as the fulcrum. The linkage structure of the movable frame 7 and the adjusting frame 9 can respond to changes in the wall panel thickness in real time, providing a trigger signal for subsequent pressure adjustment and ensuring the sensitivity and accuracy of thickness detection. When the adjusting frame 9 moves upward, it pushes the top plate 5 upward, reducing the compression of the auxiliary spring 302 and releasing some of the elastic force. This prevents the extrusion roller 401 from over-extruding the extrusion spring 121 when the extrusion plate is lifted, balancing the degree of extrusion of the extrusion spring 121 and effectively preventing the film from being damaged by excessive pressure.

[0031] It should be noted that, as Figure 4 As shown, several counterweight rods 10 are fixedly connected between the two adjusting frames 9. The upper end of the adjusting frame 9 is located below the top plate 5, and the constraint rod 901 fixedly connected to the top of the adjusting frame 9 passes through the constraint groove 502 opened on the surface of the top plate 5. The top of the constraint rod 901 is fixedly connected to the constraint head 902. An auxiliary spring 302 is sleeved on the surface of the vertical rod 301 above the top plate 5. The counterweight rod 10 provides downward pulling force to the adjusting frame 9 through its own weight. It cooperates with the auxiliary spring 302 to quickly drive the top plate 5 to move downward after the thickness of the board decreases. On the one hand, it ensures that the sensing wheel 801 on the fixed rod 8 is always in contact with the board. On the other hand, it allows the bottom plate 4 and the extrusion roller 401 below to maintain pressure on the board, ensuring the adhesion force when the wall panel is covered with film.

[0032] Specifically, such as Figure 2 As shown, two support frames 3 are fixedly connected to the front and rear edges of the top of the base 1, respectively. A vertical rod 301 is fixedly connected between the upper and lower inner walls of the support frame 3. Two top plates 5 and a bottom plate 4 are provided between the front and rear support frames 3. The two top plates 5 are respectively penetrated by the vertical rod 301 on the inner side of the front and rear support frames 3, and the top plates 5 are slidably connected to the vertical rod 301. The two top plates 5 are fixedly connected by the central rod 501.

[0033] In this technical solution, the vertical rod 301 provides a vertical sliding track for the top plate 5, ensuring that the top plate 5 rises and falls in a straight line when under force, preventing the film material from being misaligned due to the offset of the top plate 5 during the film coating process; the central rod 501 connects the two top plates 5 into a whole, so that the force on both sides is even, avoiding unilateral tilting, and improving the durability of the device in high-frequency operation.

[0034] Furthermore, such as Figure 5As shown, the central rod 501 passes through the rotating block 11 and is rotatably connected to it. Telescopic rods 12 are fixedly connected to both the upper and lower surfaces of the rotating block 11. Insert blocks 13 are fixedly connected to the telescopic ends of the telescopic rods 12, and compression springs 121 with different elastic forces are respectively fitted onto the surfaces of the upper and lower telescopic rods 12. Protrusions 503 are fixedly connected to the tops of the top plates 5 on both sides of the rotating block 11. The rotating block 11 and protrusions 503 are simultaneously penetrated by pins 111 and slidably connected to them. After the pins 111 are pulled out, the rotating block 11 can rotate 180 degrees around the central rod 501. Different elastic forces of the compression springs 121 can be selected, for example, the upper spring stiffness is 3 N / mm, suitable for thicker wall panels, and the lower spring stiffness is 1.5 N / mm. m, suitable for thinner wall panels; after rotating to the position, insert pin 111 to fix rotating block 11. At this time, telescopic rod 12 is connected to slot 402 of base plate 4 through insert block 13. The elastic force of compression spring 121 is transmitted to base plate 4 through telescopic rod 12, providing downward pressure for film coating; the cooperation between rotating block 11 and pin 111 realizes quick switching of compression spring 121, which can adapt to wall panels of different thicknesses without disassembling components, shortening the adjustment time; telescopic rod 12 ensures that the elastic force of compression spring 121 is transmitted vertically, avoiding spring bending caused by lateral force, and improving the flatness of film coating; it should be noted that telescopic rod 12 is composed of two tubes with smooth surface, ensuring quick response during extension and retraction, and avoiding jamming due to self-friction.

[0035] It is worth noting that, such as Figure 3 As shown, the front and rear ends of the base plate 4 are penetrated by the vertical rods 301 on the inner side of the front and rear support frames 3, and the base plate 4 is slidably connected to the vertical rods 301. The top center of the base plate 4 is provided with a slot 402, and the front and rear inner sidewalls of the base plate 4 are rotatably connected to the compression rollers 401. The base plate 4 slides up and down along the vertical rods 301, and under the action of the compression spring 121, it presses the protective film onto the wall panel. At the same time, it rotates synchronously with the wall panel conveyor to reduce the film covering resistance. Meanwhile, the sliding design of the base plate 4 and the top plate 5 form a coordinated adjustment to ensure that wall panels of different thicknesses can pass through stably and be subjected to uniform compression.

[0036] It is worth describing, such as Figure 1 As shown, a conveying assembly 101 is provided in the center of the base 1. The conveying assembly 101 realizes the continuous conveying of the wall panel and forms an assembly line operation with the film coating mechanism. The front and rear outer side walls of the base 1 under the support frame 3 are threaded with screws 201. The screws 201 penetrate the surface of the base 1 and are rotatably connected to the limiting plate 2 through the bearing seat. Both ends of the limiting plate 2 are fixedly connected with slide rods 202. The slide rods 202 penetrate the surface of the base 1 and are slidably connected to the base 1. When the screws 201 are rotated, the threaded transmission causes the limiting plate 2 to move laterally along the slide rods 202. The distance between the two limiting plates 2 can be adjusted according to the width of the wall panel to perform lateral positioning of the wall panel, ensuring that the panel remains stable and upright when passing through, and improving the quality and stability of the film coating.

[0037] It is worth noting that the conveying assembly 101 mainly consists of a drive motor, a transmission chain, and several parallel conveying rollers. After the drive motor starts, it drives all the conveying rollers to rotate synchronously in the same direction via the chain. The PVC wall panel is placed on the surface of the conveying rollers, and continuous and stable conveying is achieved by the friction between the conveying rollers and the bottom surface of the wall panel, providing stable feeding power for the subsequent lamination process. The device also includes a lamination storage assembly and a cutting blade. The storage assembly is rotatably connected to the feed side of the lamination mechanism via an additional bracket, and is used to wind and store the protective film to be used. In actual use, the storage assembly unwinds the protective film synchronously with the wall panel conveying, guiding it to the upper surface of the wall panel to complete the lamination. When the end of the wall panel passes the cutting blade, the cutting blade moves rapidly under the drive of the drive assembly, cutting the protective film along the edge of the wall panel, thus achieving the lamination forming of a single wall panel. It should be noted that the aforementioned conveying assembly 101, lamination storage assembly, and cutting blade are all conventional functional components in the prior art. Their structure and working principle are common knowledge in the field and are not the innovative points of the technical solution claimed in this utility model; therefore, they will not be described in detail here.

[0038] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0039] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A high-efficiency film coating device for PVC wall panels, comprising a support frame (3) and a crossbar (601), characterized in that, The crossbar (601) is rotatably connected between two side plates (6), and two movable frames (7) are fixedly connected to the surface of the crossbar (601). A fixed rod (8) is fixedly connected between the two movable frames (7). A sensing wheel (801) is rotatably connected to the center of the fixed rod (8). The fixed rod (8) passes through the lower end of two adjusting frames (9) and is rotatably connected to the adjusting frames (9). Several counterweight rods (10) are fixedly connected between the two adjusting frames (9). The upper end of the adjusting frame (9) is located below the top plate (5), and a constraint rod (901) fixedly connected to the top of the adjusting frame (9) passes through a constraint groove (502) opened on the surface of the top plate (5). A constraint head (902) is fixedly connected to the top of the constraint rod (901).

2. The high-efficiency film coating device for PVC wall panels as described in claim 1, characterized in that, The two side plates (6) are fixedly connected to the side walls of the two support frames (3), and the two support frames (3) are fixedly connected to the front and rear edges of the top of the base (1). A vertical rod (301) is fixedly connected between the upper and lower inner walls of the support frame (3). Two top plates (5) and a bottom plate (4) are provided between the front and rear support frames (3).

3. The high-efficiency film coating device for PVC wall panels as described in claim 2, characterized in that, The front and rear ends of the base plate (4) are respectively penetrated by the vertical rods (301) inside the front and rear support frames (3), and the base plate (4) is slidably connected to the vertical rods (301). A slot (402) is provided at the center of the top of the base plate (4), and an extrusion roller (401) is rotatably connected between the front and rear inner sidewalls of the base plate (4).

4. The high-efficiency film coating device for PVC wall panels as described in claim 2, characterized in that, The two top plates (5) are respectively penetrated by the vertical rods (301) on the inner side of the front and rear support frames (3), and the top plates (5) are slidably connected to the vertical rods (301). An auxiliary spring (302) is sleeved on the surface of the vertical rods (301) above the top plates (5). The two top plates (5) are fixedly connected by the central rod (501).

5. The high-efficiency film coating device for PVC wall panels as described in claim 4, characterized in that, The central rod (501) passes through the rotating block (11) and is rotatably connected to the rotating block (11). The upper and lower surfaces of the rotating block (11) are fixedly connected with telescopic rods (12). The telescopic end of the telescopic rod (12) is fixedly connected with a plug (13). The surfaces of the upper and lower telescopic rods (12) are respectively fitted with compression springs (121) with different elastic forces.

6. The high-efficiency film coating device for PVC wall panels as described in claim 5, characterized in that, The top of the top plate (5) on both sides of the rotating block (11) is fixedly connected with a protrusion (503). The rotating block (11) and the protrusion (503) are simultaneously penetrated by a pin (111) and slidably connected to the pin (111).

7. The high-efficiency film coating device for PVC wall panels as described in claim 2, characterized in that, The base (1) has a conveying assembly (101) in the center. The front and rear outer walls of the base (1) below the support frame (3) are threaded with screws (201). The screws (201) penetrate the surface of the base (1) and are rotatably connected to the limiting plate (2) through the bearing seat. The two ends of the limiting plate (2) are fixedly connected with slide rods (202). The slide rods (202) penetrate the surface of the base (1) and are slidably connected to the base (1).

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