A production control system for PVC decorative film

Abstract

This invention relates to the field of PVC film production technology and discloses a production control system for PVC decorative film, including a machine body. An operating table is fixedly installed on the side wall of the machine body. Several feeding rollers are rotatably installed on the top of the side wall of the machine body. A cutting blade is slidably installed on the top of the side wall of the operating table. A receiving platform is fixedly installed on the side of the machine body near the cutting blade. When the PVC film is cut, an electric push rod is activated, which generates a pushing force on the lower pressure table, causing the lower pressure table to move and drive the roller and the following block to move down synchronously. When the lower pressure table moves down a certain distance, the roller contacts the surface of the PVC film, forcing the roller to move relative to the lower pressure table. At this time, the roller continuously rolls on the surface of the PVC film, generating a pushing force on the bulging part of the PVC film surface, ensuring that each film directly contacts the pressure. At the same time, by reducing the gap, the film's contact with air is reduced, which can significantly slow down the volatilization and precipitation of plasticizers and extend the shelf life of the film.

Description

Technical Field

[0001] This invention relates to the field of PVC film production technology, specifically to a production control system for PVC decorative film. Background Technology

[0002] The production control system for PVC decorative film is based on PLC, linking servo equipment for the entire process of extrusion, printing, cutting, and winding. It monitors temperature, film thickness, tension, and color registration accuracy in real time, and can automatically correct deviations, issue fault alarms, and store process data. This achieves full-process automated and precise control, stabilizes product quality, and improves production efficiency. The inherent softness and lack of stiffness of PVC decorative film make it difficult to maintain flatness after cutting. During stacking, uneven gaps and bumps are likely to occur. The gaps between the film layers significantly increase the contact area between the PVC film and the air, causing the plasticizers in the soft PVC to evaporate and leach out more quickly. At the same time, oxygen and moisture accelerate the aging and degradation of the PVC polymer chains, making them prone to breakage during processing. To address these issues, the following solutions are proposed. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a production control system for PVC decorative film, including a machine body, an operating table fixedly installed on the side wall of the machine body, a plurality of feeding rollers rotatably installed on the top of the side wall of the machine body, a cutting blade slidably installed on the top of the side wall of the operating table, and a receiving platform fixedly installed on the side of the machine body near the cutting blade, and further including: The braking mechanism is fixedly installed on the side wall of the receiving platform; The braking mechanism includes an electric push rod fixedly connected to the bottom of the outer wall of the receiving platform, a downward block slidably connected to the side wall of the receiving platform, and a downward pressing platform rotatably connected to the side wall of the downward block. The protection mechanism is rotatably mounted on the bottom of the outer wall of the braking mechanism; The protection mechanism is slidably connected to the contact plate on the side wall of the lower pressure table; The support mechanism is slidably mounted on the outer wall of the protective mechanism. The support mechanism is slidably connected to the lifting plate on the inner wall of the contact plate.

[0004] Preferably, the braking mechanism includes: The movable component is fixedly installed on the side wall of the receiving platform; The contact component is slidably disposed on the side wall of the movable component; When the contact component comes into contact with the PVC film surface, the contact component is subjected to force and moves relative to the moving component.

[0005] Preferably, the protection mechanism includes: The auxiliary component is rotatably mounted on the bottom of the outer wall of the contact component; The leveraging component is slidably mounted on the side wall of the moving component; Among them, the lever component moves gradually as the contact component moves.

[0006] Preferably, the support mechanism includes: The lifting component is slidably mounted on the outer wall of the support component; When the auxiliary component rotates, the lifting component moves again.

[0007] Preferably, the moving component includes a spring fixedly connected to the bottom of the outer wall of the lower moving block; When the PVC film is cut, the electric push rod is activated, which pushes the lower pressure table, causing it to move. As the lower pressure table moves, the lower moving block moves down synchronously, putting pressure on the spring.

[0008] Preferably, the contact assembly includes a roller slidably connected to the side wall of the lower pressure table, a follower block slidably connected to the side wall of the lower pressure table, and a spring fixedly connected to the side wall of the follower block. When the lower pressure table moves down a certain distance, the roller comes into contact with the surface of the PVC film and exerts pressure on the roller, forcing the roller to move relative to the lower pressure table. At this time, the roller rolls continuously on the surface of the PVC film, generating a thrust on the bulging part of the PVC film surface.

[0009] Preferably, the auxiliary component includes a rotating rod rotatably connected to the bottom of the outer wall of the following block, a torsion spring sleeved on the inner wall of the rotating rod, and a telescopic rod rotatably connected to the top of the outer wall of the rotating rod; When the follower block moves relative to the lower pressure table, it drives the rotating rod to move synchronously. When the rotating rod moves a certain distance, it rotates under the elastic force of the torsion spring. At this time, the rotating rod gradually rotates to the bottom of the PVC film that has just been cut, while the roller is at the top of the PVC film. The two move synchronously, forming a certain clamping on the PVC film and playing an auxiliary role in flattening the bulging position on the surface of the PVC film.

[0010] Preferably, the leveraging component includes a second spring that is fixedly connected to the top of the outer wall of the contact plate; When the lower pressure table moves down a certain distance, the contact plate comes into contact with the PVC film. At this time, there is a certain gap between the roller and the PVC film. As the electric actuator outputs, the lower pressure table tilts under force, which puts pressure on the contact plate and the roller. The contact plate moves up relative to the lower pressure table and puts pressure on the second spring.

[0011] Preferably, the lifting assembly includes a limiting block fixedly connected to the side wall of the rotating rod, a compression rod fixedly connected to the top of the outer wall of the receiving platform, and a limiting block slidably connected to the top of the outer wall of the receiving platform. When the lower pressure platform moves down a certain distance, the lifting plate comes into contact with the compression rod and exerts downward pressure on the compression rod, causing the compression rod to be compressed. When the lifting plate comes into contact with the PVC film surface, the rotating rod rotates, causing the limiting block to move. At this time, under the elastic force of the compression rod, the lifting plate moves relative to the contact plate. During the rotation of the rotating rod, it exerts a pushing force on the limiting block, forcing the limiting block to move and come into contact with several grooves on the surface of the compression rod, thereby limiting the compression rod.

[0012] The present invention has the following beneficial effects: (1) When the PVC film is cut, the electric push rod is activated to generate a pushing force on the lower pressure table, causing the lower pressure table to move and drive the roller and the following block to move down synchronously. When the lower pressure table moves down a certain distance, the roller comes into contact with the surface of the PVC film, forcing the roller to move relative to the lower pressure table. At this time, the roller rolls continuously on the surface of the PVC film, generating a pushing force on the bulging position of the PVC film surface. Through the above components, it is ensured that each film is in direct contact with the pressure. At the same time, after the gap is reduced, the film is less in contact with the air, which can greatly slow down the volatilization and precipitation of plasticizer and extend the shelf life of the film.

[0013] (2) When the rotating rod moves a certain distance, it rotates under the elastic force of the torsion spring. At this time, the rotating rod gradually rotates to the bottom of the PVC film that has just been cut, while the roller is at the top of the PVC film. The two move synchronously, forming a certain clamping on the PVC film, which plays an auxiliary role in flattening the bulging position on the surface of the PVC film. When the rotating rod rotates, it generates a certain thrust on the telescopic rod, causing the telescopic rod to contract under force. Through the above components, the PVC film can be completely flattened and stretched, preventing the PVC film from retaining internal stress due to long-term bending, and stabilizing the physical structure of the film material.

[0014] (3) When the pressure table moves down a certain distance, the contact plate comes into contact with the PVC film. At this time, with the output of the electric push rod, the pressure table tilts. When the pressure table tilts, it exerts pressure on the contact plate and the roller, causing the roller to move. After the roller moves quickly, as the pressure table continues to move down, the contact plate moves upward relative to the pressure table and exerts pressure on the second spring, forcing the second spring to be compressed. Finally, the pressure table completes the pressure on the surface of the PVC film. Through the above components, a supporting force is applied to the roller, preventing the downward pressure of the roller from acting directly on the PVC film. At the same time, through hard contact, the normal sliding effect of the roller is effectively achieved.

[0015] (4) When the lifting plate comes into contact with the surface of the PVC film, the rotating rod rotates and drives the limiting block to move, so that the limiting block loses its restriction on the lifting plate. At this time, under the elastic force of the compression rod, the lifting plate moves relative to the contact plate. During the rotation of the rotating rod, it comes into contact with the limiting block and generates a pushing force on the limiting block, forcing the limiting block to move. After moving, the limiting block enters the inside of the compression rod and contacts several grooves on the surface of the compression rod, thereby restricting the compression rod. Through the above components, when the roller slides, there is a certain gap between the lifting plate and the PVC film, ensuring that the PVC film will not be subjected to additional resistance when the roller applies a pushing force to the PVC film. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 This is a schematic diagram of some parts in the braking mechanism of the present invention; Figure 4 This is a schematic cross-sectional view of the moving component of the present invention; Figure 5 This is a schematic cross-sectional view of the contact component and auxiliary component of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 This is a cross-sectional schematic diagram of the protection mechanism of the present invention; Figure 8 This is a schematic cross-sectional view of the support mechanism of the present invention; Figure 9 For the present invention Figure 8 Enlarged diagram of point B in the middle.

[0018] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Braking mechanism; 11. Moving component; 12. Contact component; 13. Machine body; 14. Operating table; 15. Feeding roller; 16. Cutting blade; 17. Receiving platform; 111. Electric push rod; 112. Lowering block; 113. Lowering platform; 114. Spring; 121. Roller; 122. Following block; 123. Spring one; 2. Protection mechanism; 21. Auxiliary component; 22. Assisting component; 211. Rotating rod; 212. Torsion spring; 213. Telescopic rod; 221. Contact plate; 222. Spring two; 3. Support mechanism; 31. Lifting component; 311. Lifting plate; 312. Limiting block; 313. Compression rod; 314. Limiting block. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1, please refer to Figures 1-7 This invention relates to a production control system for PVC decorative film, comprising a machine body 13, an operating table 14 fixedly mounted on the side wall of the machine body 13, a plurality of feeding rollers 15 rotatably mounted on the top of the side wall of the machine body 13, a cutting blade 16 slidably mounted on the top of the side wall of the operating table 14, and a receiving platform 17 fixedly mounted on the side of the machine body 13 near the cutting blade 16, and further comprising: Braking mechanism 1 is fixedly installed on the side wall of the receiving platform 17; The braking mechanism 1 includes an electric push rod 111 fixedly connected to the bottom of the outer wall of the receiving platform 17, a downward block 112 slidably connected to the side wall of the receiving platform 17, and a downward pressing platform 113 rotatably connected to the side wall of the downward block 112. Protection mechanism 2 is rotatably mounted on the bottom of the outer wall of braking mechanism 1; Among them, the protection mechanism 2 is slidably connected to the contact plate 221 on the side wall of the lower pressure table 113; Support mechanism 3 is slidably mounted on the outer wall of protection mechanism 2; Among them, the support mechanism 3 is slidably connected to the lifting plate 311 on the inner wall of the contact plate 221.

[0021] Braking mechanism 1 includes: The movable component 11 is fixedly installed on the side wall of the receiving platform 17; Contact component 12 is slidably disposed on the side wall of movable component 11; When the worker needs to cut the processed PVC film, the machine body 13 is started through the operating table 14. The machine body 13 drives several feeding rollers 15 to rotate. With the continuous rotation of the feeding rollers 15, the PVC film is pushed to the surface of the receiving table 17. At this time, when the PVC film is pushed to the target area, the cutting blade 16 moves down quickly to cut the PVC film accurately, ensuring that the cut PVC film is of consistent size. As the cutting blade 16 continues to cut, the cut PVC film is continuously stacked. When a certain number are stacked, the next process begins. When the PVC film is cut, the moving component 11 is started. At this time, the moving component 11 begins to move down, and the contact component 12 moves down accordingly. When the contact component 12 contacts the surface of the PVC film, the contact component 12 is subjected to force relative to the moving component 11 and moves.

[0022] Protection agency 2 includes: Auxiliary component 21 is rotatably disposed at the bottom of the outer wall of contact component 12; The leveraging component 22 is slidably disposed on the side wall of the movable component 11; When the contact component 12 moves relative to the moving component 11, it drives the auxiliary component 21 to move synchronously, and the lever component 22 moves gradually under the movement of the contact component 12.

[0023] Supporting mechanism 3 includes: The lifting component 31 is slidably disposed on the outer wall of the support component 22; During the downward movement of the moving component 11, pressure is exerted on the lifting component 31. When the auxiliary component 21 rotates, it loses its restriction on the lifting component 31, causing the lifting component 31 to move again.

[0024] Example 2, please refer to Figures 3-9 The present invention is a production control system for PVC decorative film. Based on the first embodiment, the moving component 11 includes a spring 114 fixedly connected to the bottom of the outer wall of the lower moving block 112. When the PVC film is cut, the electric push rod 111 is activated, which pushes the lower pressure table 113, causing the lower pressure table 113 to move under force. When the lower pressure table 113 moves, it drives the lower moving block 112 to move down synchronously. When the lower moving block 112 moves down, it puts pressure on the spring 114, causing the spring 114 to be compressed and accumulate potential energy.

[0025] The contact assembly 12 includes a roller 121 slidably connected to the side wall of the lower pressure table 113, a follower block 122 slidably connected to the side wall of the lower pressure table 113, and a spring 123 fixedly connected to the side wall of the follower block 122. When the lower pressure platform 113 moves downward, it drives the roller 121 and the following block 122 to move downward synchronously. When the lower pressure platform 113 moves downward a certain distance, the roller 121 comes into contact with the surface of the PVC film. Since the surface of the receiving platform 17 has a certain slope, as the lower pressure platform 113 continues to move downward, the roller 121 is subjected to the pressure of the lower pressure platform 113, which forces the roller 121 to move relative to the lower pressure platform 113. The following block 122 moves along with it, and when the following block 122 moves, it generates a pulling force on the spring 123, causing the spring 123 to be stretched and accumulate potential energy. At this time, the roller 121 rolls continuously on the surface of the PVC film, generating a pushing force on the bulging position of the PVC film surface. When the roller 121 rolls a certain distance, the roller 121 moves upward relative to the lower pressure platform 113, causing the lower pressure platform 113 to come into contact with the edge of the PVC film and apply sufficient pressure.

[0026] The auxiliary component 21 includes a rotating rod 211 rotatably connected to the bottom of the outer wall of the following block 122, a torsion spring 212 sleeved on the inner wall of the rotating rod 211, and a telescopic rod 213 rotatably connected to the top of the outer wall of the rotating rod 211. When the follower block 122 moves relative to the lower pressure table 113, it drives the rotating rod 211 to move synchronously, such as... Figure 7 As shown, before moving, the rotating rod 211 is restricted by the protrusion at point F of the lower pressure table 113, preventing it from rotating under the elastic force of the torsion spring 212. However, after moving a certain distance, the rotating rod 211 is freed from the restriction of the protrusion at point F, allowing it to rotate under the elastic force of the torsion spring 212. At this point, the rotating rod 211 gradually rotates to the bottom of the just-cut PVC film, while the roller 121 is at the top of the PVC film. The two move synchronously, forming a certain clamping effect on the PVC film and assisting in flattening the bulging areas on the surface of the PVC film. The rotating rod 211 provides an auxiliary function, and when it rotates, it exerts a certain thrust on the telescopic rod 213, causing the telescopic rod 213 to contract under force. When the roller 121 is about to finish rolling the PVC film surface, the rotating rod 211 is pushed by the telescopic rod 213, causing the rotating rod 211 to rotate again under force. At this time, the rotating rod 211 does not contact the PVC film. When the lower pressure table 113 moves upward, the rotating rod 211 does not contact the PVC film under the thrust of the telescopic rod 213, preventing the rotating rod 211 from exerting a thrust on the PVC film during the upward movement.

[0027] The lever component 22 includes a spring 222 that is fixedly connected to the top of the outer wall of the contact plate 221; When the lower pressure platform 113 moves downward, it drives the contact plate 221 and the second spring 222 to move downward synchronously. When the lower pressure platform 113 moves downward a certain distance, the contact plate 221 comes into contact with the PVC film. At this time, there is a certain gap between the roller 121 and the PVC film. At this time, with the output of the electric push rod 111, the lower pressure platform 113 is tilted by force. When the lower pressure platform 113 tilts, it exerts pressure on the contact plate 221 and the roller 121, causing the roller 121 to move under force. After the roller 121 moves rapidly, as the lower pressure platform 113 continues to move downward, the contact plate 221 moves upward relative to the lower pressure platform 113 and exerts pressure on the second spring 222, forcing the second spring 222 to be compressed and accumulate potential energy. Finally, the lower pressure platform 113 completes the pressure on the surface of the PVC film.

[0028] The lifting assembly 31 includes a limiting block 312 fixedly connected to the side wall of the rotating rod 211, a compression rod 313 fixedly connected to the top of the outer wall of the receiving platform 17, and a limiting block 314 slidably connected to the top of the outer wall of the receiving platform 17. When the lower pressure platform 113 moves downward, it drives the lifting plate 311 to move downward synchronously. When the lower pressure platform 113 moves down a certain distance, the lifting plate 311 comes into contact with the compression rod 313. At this time, the rotating rod 211 does not rotate, so the limiting block 312 keeps the lifting plate 311 in a limited state. Thus, the lifting plate 311 exerts downward pressure on the compression rod 313, causing the compression rod 313 to be compressed. When the lifting plate 311 comes into contact with the PVC film surface, as the rotating rod 211 rotates, it drives the limiting block 312 to move, causing the limiting block 312 to lose its restriction on the lifting plate 311. At this time, the lifting plate 311 is pressing... Under the elastic force of the retracting rod 313, the lifting plate 311 moves relative to the contact plate 221. During the rotation of the rotating rod 211, it comes into contact with the limiting block 314 and exerts a pushing force on the limiting block 314, forcing the limiting block 314 to move under force. This exerts pressure on the spring sheet between the limiting block 314 and the compression rod 313. After moving, the limiting block 314 enters the interior of the compression rod 313 and contacts several grooves on the surface of the compression rod 313, thereby restricting the compression rod 313. This causes the downward pressure of the lifting plate 311 to act on the surface of the compression rod 313, and at this time, the lifting plate 311 has a certain gap with the surface of the PVC film.

[0029] A specific application of this embodiment is as follows: When the worker needs to cut the processed PVC film, the machine body 13 is started through the operating table 14. The machine body 13 drives several feeding rollers 15 to rotate. With the continuous rotation of the feeding rollers 15, the PVC film is pushed to the surface of the receiving table 17. At this time, when the PVC film is pushed to the target area, the cutting blade 16 moves down quickly to cut the PVC film accurately, ensuring that the cut PVC film is of consistent size. As the cutting blade 16 continues to cut, the cut PVC film is continuously stacked. When a certain number are stacked, the next process begins.

[0030] Due to the inherent softness and insufficient stiffness of PVC decorative film, it is difficult to maintain flatness after cutting. Unevenness and unevenness naturally occur during stacking. The gaps between film layers significantly increase the contact area between the PVC film and air, causing plasticizers in the soft PVC to evaporate and leach out more quickly. Simultaneously, oxygen and moisture accelerate the aging and degradation of the PVC polymer chains, making them prone to breakage during processing. When the PVC film is cut, the electric actuator 111 is activated, generating a pushing force on the lower pressure table 113, causing it to move. As the lower pressure table 113 moves, it drives the lower moving block 112 to move synchronously downwards. The downward movement of the lower moving block 112 exerts pressure on the spring 114, causing it to compress and accumulate potential energy. As the lower pressure table 113 moves downwards, it drives the roller 121 and the following block 122 to move synchronously downwards. When the lower pressure table 113 has moved a certain distance downwards, the roller 121 and the following block 122 move synchronously downwards. When the PVC film surfaces come into contact, due to the slope of the receiving platform 17, as the lower pressure platform 113 continues to move downward, the roller 121 is subjected to the pressure of the lower pressure platform 113, forcing the roller 121 to move relative to the lower pressure platform 113. The follower block 122 moves along with it, and when the follower block 122 moves, it generates a pulling force on the spring 123, causing the spring 123 to be stretched and accumulate potential energy. At this time, the roller 121 rolls continuously on the PVC film surface, generating a pushing force on the bulging parts of the PVC film surface. When the roller 121 rolls a certain distance, the roller 121 moves upward relative to the lower pressure platform 113, causing the lower pressure platform 113 to contact the edge of the PVC film and apply sufficient pressure. Through the above components, the PVC film is pressed one by one, ensuring that each film is in direct contact with the pressure. At the same time, by reducing the gap, the film's contact with air is reduced, which can significantly slow down the volatilization and precipitation of plasticizers and extend the shelf life of the film.

[0031] Utilizing the aforementioned characteristic of the following block 122's movement, when the following block 122 moves relative to the lower pressure table 113, it drives the rotating rod 211 to move synchronously, such as... Figure 7As shown, before moving, the rotating rod 211 is restricted by the protrusion at point F of the lower pressure table 113, preventing it from rotating under the elastic force of the torsion spring 212. After moving a certain distance, the rotating rod 211 is freed from the restriction of the protrusion at point F, allowing it to rotate under the elastic force of the torsion spring 212. At this point, the rotating rod 211 gradually rotates to the bottom of the just-cut PVC film, while the roller 121 is at the top of the PVC film. Both move synchronously, clamping the PVC film and assisting in flattening the bulging areas on the PVC film surface. Furthermore, the rotation of the rotating rod 211 generates a certain thrust on the telescopic rod 213, causing it to contract. When the roller 121 is about to complete rolling the PVC film surface, the rotating rod 211 is pushed by the telescopic rod 213, causing it to rotate again. 1. The rotating rod 211 does not contact the PVC film. When the lower pressure table 113 moves upward, the rotating rod 211 does not contact the PVC film under the thrust of the telescopic rod 213. This prevents the rotating rod 211 from exerting a thrust on the PVC film during the upward movement. Since PVC itself is an insulating material, it is easy to accumulate static electricity during the cutting and conveying process. Relying on the static electricity, the stacked film layers will generate an adsorption force. At this time, when the roller 121 moves on the surface of the PVC film, it is easy to cause the PVC film to be squeezed and pushed to the side, causing the already misaligned PVC film layers to fold together and eventually form an overlapping bulge. The folded bulge has already caused bending. When the lower pressure table 113 presses down, it will leave irreversible creases at the bending points, causing irreversible structural damage. Through the above components, the PVC film can be completely flat and stretched, preventing the PVC film from retaining internal stress due to long-term bending and stabilizing the physical structure of the film material.

[0032] Utilizing the downward movement of the lower pressure platform 113, when the lower pressure platform 113 moves downward, it drives the contact plate 221 and the second spring 222 to move downward synchronously. When the lower pressure platform 113 moves downward a certain distance, the contact plate 221 comes into contact with the PVC film. At this time, there is a certain gap between the roller 121 and the PVC film. With the output of the electric actuator 111, the lower pressure platform 113 is tilted by force. When the lower pressure platform 113 tilts, it exerts pressure on the contact plate 221 and the roller 121, causing the roller 121 to move under force. After the roller 121 moves rapidly, as the lower pressure platform 113 continues to move downward, the contact plate 221 moves upward relative to the lower pressure platform 113, and exerts pressure on the second spring 222, forcing the second spring 222 to be compressed and accumulating potential energy. Finally, the pressure table 113 applies pressure to the surface of the PVC film. When the roller 121 comes into contact with the PVC film, it is subjected to pressure from the pressure table 113 as the pressure table 113 rotates, causing the roller 121 to slide on the surface of the PVC film. However, as the PVC film accumulates, the contact surface gradually softens when the roller 121 comes into contact with its surface again. As a result, when the roller 121 is subjected to pressure from the pressure table 113 again, it will directly exert downward pressure on the surface of the PVC film. In the end, the roller 121 cannot achieve normal sliding and cannot generate effective thrust on the surface of the PVC film. Through the above components, a supporting force is applied to the roller 121 to prevent the downward pressure of the roller 121 from acting directly on the PVC film. At the same time, through hard contact, the normal sliding effect of the roller 121 is effectively achieved.

[0033] Utilizing the downward movement of the pressing platform 113, the lifting plate 311 moves downward synchronously as the pressing platform 113 moves downward. When the pressing platform 113 moves a certain distance downward, the lifting plate 311 contacts the compression rod 313. At this time, the rotating rod 211 does not rotate, ensuring that the limiting block 312 maintains the limiting state of the lifting plate 311. Thus, the lifting plate 311 exerts downward pressure on the compression rod 313, causing the compression rod 313 to be compressed. When the lifting plate 311 contacts the PVC film surface, the rotation of the rotating rod 211 causes the limiting block 312 to move, causing the limiting block 312 to lose its restriction on the lifting plate 311. At this time, under the elastic force of the compression rod 313, the lifting plate 311 moves relative to the contact plate 221. During the rotation of the rotating rod 211, it contacts the limiting block 314 and exerts a pushing force on the limiting block 314, forcing the limiting block 311 to move. 4. The force causes movement and exerts pressure on the spring between the limiting block 314 and the compression rod 313. After movement, the limiting block 314 enters the compression rod 313 and contacts several grooves on the surface of the compression rod 313, thereby restricting the compression rod 313. This causes the downward pressure of the lifting plate 311 to act on the surface of the compression rod 313. At this time, the lifting plate 311 has a certain gap with the surface of the PVC film. When the contact plate 221 contacts the surface of the PVC film, it will exert a certain pressure on the edge of the PVC film. As a result, the PVC film at the bottom of the contact plate 221 cannot be pushed during the sliding of the roller 121, causing wrinkles to occur and affecting the flatness of the PVC film. Through the above components, when the roller 121 slides, there is a certain gap between the lifting plate 311 and the PVC film, ensuring that the PVC film will not be subjected to additional resistance when the roller 121 applies a pushing force to the PVC film.

[0034] The number of the above components is not limited. Those skilled in the art can set it freely according to actual needs, as long as the above components are installed at the corresponding component connection positions.

[0035] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A production control system for PVC decorative film, comprising a machine body (13), an operating table (14) fixedly disposed on the side wall of the machine body (13), a plurality of feeding rollers (15) rotatably disposed on the top of the side wall of the machine body (13), a cutting blade (16) slidably disposed on the top of the side wall of the operating table (14), and a receiving platform (17) fixedly disposed on the side of the machine body (13) near the cutting blade (16), characterized in that, Also includes: Braking mechanism (1), the braking mechanism (1) is fixedly installed on the side wall of the receiving platform (17); The braking mechanism (1) includes an electric push rod (111) fixedly connected to the bottom of the outer wall of the receiving platform (17), a downward block (112) slidably connected to the side wall of the receiving platform (17), and a downward pressing platform (113) rotatably connected to the side wall of the downward block (112). The protection mechanism (2) is rotatably disposed at the bottom of the outer wall of the braking mechanism (1); The protection mechanism (2) is slidably connected to the contact plate (221) on the side wall of the lower pressure table (113). Support mechanism (3), which is slidably disposed on the outer wall of the protective mechanism (2); The support mechanism (3) is slidably connected to the lifting plate (311) on the inner wall of the contact plate (221).

2. The PVC decorative film production control system according to claim 1, characterized in that: The braking mechanism (1) includes: A movable component (11) is fixedly disposed on the side wall of the receiving platform (17); Contact component (12), which is slidably disposed on the side wall of the movable component (11); When the PVC film is cut, the moving component (11) is activated, and the moving component (11) begins to move downward.

3. The PVC decorative film production control system according to claim 2, characterized in that: The protection mechanism (2) includes: Auxiliary component (21), which is rotatably disposed at the bottom of the outer wall of contact component (12); A leveraging component (22) is slidably disposed on the side wall of the movable component (11); When the contact component (12) moves relative to the moving component (11), it drives the auxiliary component (21) to move synchronously.

4. The PVC decorative film production control system according to claim 3, characterized in that: The support mechanism (3) includes: A lifting assembly (31) is slidably disposed on the outer wall of the lever assembly (22); During the downward movement of the moving component (11), pressure is generated on the lifting component (31).

5. The PVC decorative film production control system according to claim 4, characterized in that: The moving component (11) includes a spring (114) fixedly connected to the bottom of the outer wall of the lower moving block (112). The bottom of the outer wall of the electric push rod (111) is in contact with the top of the outer wall of the lower pressure table (113), and the end of the spring (114) away from the lower moving block (112) is fixedly connected to the top of the outer wall of the receiving platform (17).

6. The PVC decorative film production control system according to claim 5, characterized in that: The contact assembly (12) includes a roller (121) slidably connected to the side wall of the lower pressure table (113), a follower block (122) slidably connected to the side wall of the lower pressure table (113), and a spring (123) fixedly connected to the side wall of the follower block (122). The roller (121) is rotatably connected to the side wall of the follower block (122), and the end of the spring (123) away from the follower block (122) is fixedly connected to the side wall of the lower pressure table (113).

7. A production control system for PVC decorative film according to claim 6, characterized in that: The auxiliary component (21) includes a rotating rod (211) rotatably connected to the bottom of the outer wall of the following block (122), a torsion spring (212) is sleeved on the inner wall of the rotating rod (211), and a telescopic rod (213) is rotatably connected to the top of the outer wall of the rotating rod (211). The outer ends of the torsion spring (212) are fixedly connected to the outer walls of the follower block (122), and the end of the telescopic rod (213) away from the follower block (122) is rotatably connected to the side wall of the lower pressure table (113).

8. A production control system for PVC decorative film according to claim 6, characterized in that: The lever component (22) includes a spring 2 (222) fixedly connected to the top of the outer wall of the contact plate (221); The top of the outer wall of the contact plate (221) is in contact with the side wall of the roller (121), and the end of the second spring (222) away from the contact plate (221) is fixedly connected to the outer wall of the lower pressure table (113).

9. A production control system for PVC decorative film according to claim 7, characterized in that: The lifting assembly (31) includes a limiting block (312) fixedly connected to the side wall of the rotating rod (211), a compression rod (313) fixedly connected to the top of the outer wall of the receiving platform (17), and a limiting block (314) slidably connected to the top of the outer wall of the receiving platform (17). When the lower pressure plate (113) comes into contact with the PVC film surface, the limiting block (314) has lost the thrust of the rotating rod (211) and has completed its reset. The limiting block (314) no longer restricts the compression rod (313).

Images