A kind of embossing device for preparing polyvinyl chloride film

Abstract

The utility model relates to a kind of embossing device for polyvinyl chloride film preparation applied to the technical field of film embossing, realize first electric guide rail and second electric guide rail are opened simultaneously, to synchronously drive the up-down movement adjustment of the two sides end connecting shaft of embossing roller, when first gear moves down, second gear rotates clockwise, third gear moves left with it, so that multiple gears always keep meshing connection state, when the distance between embossing roller and pressure roller reaches preset value, the distance between embossing roller and pressure roller is measured by laser ranging sensor, signal is transmitted to controller, to stop the operation of first electric guide rail and second electric guide rail, when this, accurate adjustment of interval is automatically completed, it is applicable to the film of different thicknesses, subsequently open first servo motor drive and the connecting shaft connected with pressure roller, by multiple gears meshing connection in turn, drive the connecting shaft connected with embossing roller synchronous reverse rotation, embossing processing is carried out to polyvinyl chloride film.

Description

Technical Field

[0001] This utility model relates to an embossing device, and more particularly to an embossing device for the preparation of polyvinyl chloride films applied in the field of film embossing technology. Background Technology

[0002] Polyvinyl chloride (PVC) film is widely used in packaging, building materials, electronics, daily necessities, and many other fields due to its excellent physicochemical properties. Embossing is an important step in the deep processing of PVC film. By pressing specific patterns onto the film surface, the film's aesthetics, anti-slip properties, and functionality can be improved, expanding its application scenarios.

[0003] Chinese patent CN219523039U discloses an embossing device for preparing polyvinyl chloride film, including a support frame, a lower embossing roller, an upper embossing roller, a traction mechanism, and an air-cooling structure. The support frame is composed of a lower support plate, a side support plate, and an upper support plate. The design has the advantages of simple structure, easy manufacturing, practicality, and high efficiency.

[0004] Chinese patent CN211746904U discloses a film embossing device. This device heats the film to above the glass transition temperature of the material using a heating plate, and performs embossing in a softened state, which can achieve a better embossing effect. Then, the feed roller of the original filter rod forming machine is modified into a gear-shaped take-off rubber roller, and the installation distance between the embossing roller and the take-off roller is kept at more than 200mm. This allows the embossed film to be made into a qualified filter rod in a uniformly folded state, which meets the requirements of the cooling section of the new type of heated non-combustible cigarette film.

[0005] The distance between the embossing roller and the pressure roller in the embossing mechanism is mostly adjusted manually, which has the problems of low precision and poor efficiency. It is difficult to adapt to the embossing requirements of films with different thicknesses, and it is easy to cause the embossing to be too shallow or too deep, affecting product consistency. Utility Model Content

[0006] The technical problem to be solved by this utility model in view of the above-mentioned prior art is that the distance between the embossing roller and the pressure roller of the embossing mechanism is mostly adjusted manually, which has the problems of low precision and poor efficiency. It is difficult to adapt to the embossing requirements of films with different thicknesses, and it is easy to cause the embossing to be too shallow or too deep, affecting the consistency of the product.

[0007] To address the aforementioned problems, this utility model provides an embossing device for preparing polyvinyl chloride film, comprising a device body. The device body contains two symmetrically arranged connecting shafts, with an embossing roller and a pressure roller respectively connected to each shaft. A roller shaft and a winding shaft, rotatably connected to the inner wall of the device body, are located in front of the pressure roller. One end of the device body has a movable opening, with a connecting shaft near the opening passing through it. A first electric guide rail is embedded in the other end of the device body, and the upper connecting shaft is rotatably connected to the movable end of the first electric guide rail. Symmetrically arranged at the outer opening of the movable opening are fixed connections to the outer wall of the device body. The two electric guide rails are connected to a rotating shaft at their movable ends. A connecting plate is sleeved between the two rotating shafts and is rotatably connected to the connecting shaft located on the upper side. A first gear and a fourth gear are fixedly connected to the surfaces of the two connecting shafts respectively. A second gear and a third gear are provided between the first gear and the fourth gear. The first gear, the second gear, the third gear and the fourth gear are meshed with each other in sequence. An extension shaft is connected to each of the first gear, the second gear, the third gear and the fourth gear. A connecting plate is rotatably connected between two adjacent extension shafts. A laser rangefinder is embedded in the bottom wall of the embossing roller.

[0008] In the above-mentioned embossing device, the embossing roller and the pressure roller are connected by a gear-driven electric guide rail to achieve automatic and precise adjustment of the distance. The gear meshing structure maintains transmission stability when adjusting the distance, avoiding the errors of traditional manual adjustment. Furthermore, a laser distance sensor is installed on the embossing roller to precisely adjust the distance between the embossing roller and the pressure roller.

[0009] As a further supplement to this application, two brackets are fixedly connected to the side of the device body. A first servo motor and a second servo motor are fixedly connected to the two brackets respectively. The output end of the first servo motor is connected to the extension shaft on the fourth gear, and the output end of the second servo motor is connected to the take-up shaft.

[0010] As a further supplement to this application, a set of limiting plates is symmetrically installed on the outer wall of the pressure roller near the roller shaft and on the bottom wall of the roller shaft, and the limiting plates are in contact with the side walls of the pressure roller and the roller shaft, respectively. Each set of two limiting plates is rotatably connected to a threaded rod at one end away from each other.

[0011] As a further supplement to this application, the device body has symmetrically opened threaded holes at both ends corresponding to multiple threaded rods, and the threaded rods pass through the threaded holes and are threadedly connected to them.

[0012] As a further supplement to this application, an embossing mold with an opening at one end is fitted onto the surface of the embossing roller, and the side end of the embossing mold is fixed to the embossing roller by screws.

[0013] As a further supplement to this application, the two ends of the embossing roller are symmetrically fixedly connected with threaded interfaces, the surface of the connecting shaft is fitted with a threaded sleeve, and the connecting shaft and the threaded interface are spliced ​​together and fixed by a nut thread.

[0014] As a further supplement to this application, a controller for controlling the first servo motor, the second servo motor, the first electric guide rail, the second electric guide rail, and the laser rangefinder is fixedly connected to the main body of the device.

[0015] In summary, the controller simultaneously activates the first and second electric guide rails, thereby synchronously driving the connecting shafts on both sides of the embossing roller to move up and down for adjustment. When the first gear moves down, the second gear rotates clockwise, and the third gear moves to the left, ensuring that the first, second, third, and fourth gears remain engaged. When the embossing roller is adjusted to a pre-set distance from the pressure roller, and the distance between the embossing roller and the pressure roller reaches the preset value, the embossing roller rotates to its initial rotation angle. At this point, the laser emitted by the laser rangefinder is perpendicular to the pressure roller, and the distance between the embossing roller and the pressure roller is measured by the laser rangefinder. The laser rangefinder transmits a signal to the controller to stop the operation of the first and second electric guide rails. At this time, the spacing between the embossing roller and the pressure roller is automatically and precisely adjusted to suit polyvinyl chloride films of different thicknesses. Then, the controller starts the first servo motor to drive the connecting shaft connected to the pressure roller. Through the sequential meshing of the fourth gear, third gear, second gear and first gear, the connecting shaft connected to the embossing roller rotates synchronously in the opposite direction, thereby embossing the polyvinyl chloride film. At the same time, the second servo motor is started to drive the winding shaft to wind up the processed polyvinyl chloride film. Attached Figure Description

[0016] Figure 1 These are isometric views of the embossing device according to the first and second embodiments of this application; Figure 2 This is a schematic diagram of the embossing roller adjustment mechanism according to the first embodiment of this application; Figure 3 This is a schematic diagram of the internal installation structure of the device according to the first embodiment of this application; Figure 4 This is a bottom view of the device according to the second embodiment of this application; Figure 5 This is a schematic diagram of the installation of the laser rangefinder sensor according to the first embodiment of this application; Figure 6 This is a schematic diagram of the installation of the embossing roller and the connecting shaft according to the second embodiment of this application; Figure 7 This is a schematic diagram of the embossing mold installation structure according to the second embodiment of this application.

[0017] Explanation of the labels in the diagram: 1. Device body; 2. Embossing roller; 3. Pressure roller; 4. Roller shaft; 5. Rewinding shaft; 6. First electric guide rail; 7. Second electric guide rail; 8. Connecting shaft; 9. First servo motor; 10. Threaded rod; 11. Second servo motor; 12. Rotating shaft; 13. First gear; 14. Connecting plate; 15. Extension shaft; 16. Second gear; 17. Third gear; 19. Fourth gear; 20. Connecting plate; 21. Movable opening; 22. Limiting plate; 23. Embossing mold; 24. Laser rangefinder sensor; 25. Nut; 26. Threaded sleeve; 27. Threaded interface; 28. Screw. Detailed Implementation

[0018] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0019] First implementation method: Figure 1-3 and Figure 5 The diagram illustrates an embossing device for preparing polyvinyl chloride (PVC) film, comprising a device body 1. The device body 1 contains two symmetrically arranged connecting shafts 8, with an embossing roller 2 and a pressure roller 3 fixedly connected to each shaft 8. A roller shaft 4 and a winding shaft 5, rotatably connected to the inner wall of the device body 1, are located in front of the pressure roller 3. One end of the device body 1 has a movable opening 21, with the connecting shaft 8 near the opening 21 passing through it. The other end of the device body 1 has a first electric guide rail 6 embedded within it. The upper connecting shaft 8 is rotatably connected to the movable end of the first electric guide rail 6. Second electric guide rails 7, symmetrically arranged at the outer opening of the movable opening 21 and fixedly connected to the outer wall of the device body 1, are also present. The movable ends of 7 are rotatably connected to the rotating shafts 12, and a connecting plate 14 is sleeved between the two rotating shafts 12. The connecting plate 14 is rotatably connected to the connecting shaft 8 located on the upper side. The surfaces of the two connecting shafts 8 are respectively fixedly connected to the first gear 13 and the fourth gear 19. The first gear 13 and the fourth gear 19 are provided with the second gear 16 and the third gear 17. The first gear 13, the second gear 16, the third gear 17 and the fourth gear 19 are meshed and connected in sequence. The first gear 13, the second gear 16, the third gear 17 and the fourth gear 19 are all connected to the extension shafts 15. The two adjacent extension shafts 15 are rotatably connected to the connecting plate 20. The bottom wall of the embossing roller 2 is embedded with a laser range sensor 24. Two brackets are fixedly connected to the side of the device body 1. The first servo motor 9 and the second servo motor 11 are fixedly connected to the two brackets respectively. The output end of the first servo motor 9 is connected to the extension shaft 15 on the fourth gear 19, and the output end of the second servo motor 11 is connected to the take-up shaft 5. A controller for controlling the first servo motor 9, the second servo motor 11, the first electric guide rail 6, the second electric guide rail 7 and the laser rangefinder 24 are fixedly connected to the device body 1.

[0020] Working principle: First, the controller simultaneously activates the first electric guide rail 6 and the second electric guide rail 7, thereby synchronously driving the connecting shafts 8 at both ends of the embossing roller 2 to move up and down for adjustment. When the first gear 13 moves down, the second gear 16 rotates clockwise, and the third gear 17 moves to the left accordingly, so that the first gear 13, the second gear 16, the third gear 17, and the fourth gear 19 always remain in a meshed connection state. When the embossing roller 2 is adjusted to the preset distance value between itself and the pressure roller 3, when the distance between the embossing roller 2 and the pressure roller 3 reaches the preset value, the embossing roller 2 rotates to the initial rotation angle (0°). The laser emitted by the laser rangefinder 24 is perpendicular to the pressure roller 3. The laser rangefinder 24 measures the distance between the embossing roller 2 and the pressure roller 3. The laser rangefinder 24 transmits a signal to the controller to stop the operation of the first electric guide rail 6 and the second electric guide rail 7. At this time, the precise adjustment of the distance between the embossing roller 2 and the pressure roller 3 is automatically completed, so that it can be used for polyvinyl chloride films of different thicknesses. Then, the controller starts the first servo motor 9 to drive the connecting shaft 8 connected to the pressure roller 3. Through the sequential meshing of the fourth gear 19, the third gear 17, the second gear 16 and the first gear 13, the connecting shaft 8 connected to the embossing roller 2 is driven to rotate synchronously in the opposite direction, thereby embossing the polyvinyl chloride film. At the same time, the second servo motor 11 is started to drive the winding shaft 5 to wind up the processed polyvinyl chloride film. This invention achieves automated and precise adjustment of the distance between the embossing roller 2 and the pressure roller 3 via a gear-driven electric guide rail. The gear meshing structure maintains transmission stability during distance adjustment, avoiding errors associated with traditional manual adjustment. Furthermore, a laser distance sensor 24 is installed on the embossing roller 2 to precisely adjust the distance between the embossing roller 2 and the pressure roller 3.

[0021] Second implementation method: Figure 1 , Figure 4 and Figures 6-7 As shown, a set of limiting plates 22 are symmetrically installed on the outer wall of the pressure roller 3 near the roller shaft 4 and on the bottom wall of the roller shaft 4, respectively. The limiting plates 22 are in contact with the side walls of the pressure roller 3 and the roller shaft 4, respectively. Each set of two limiting plates 22 are rotatably connected to a threaded rod 10 at one end away from each other. The two ends of the device body 1 are symmetrically provided with screw holes corresponding to multiple threaded rods 10, and the threaded rods 10 pass through the screw holes and are threadedly connected to them. The surface of the embossing roller 2 is fitted with an embossing mold 23 with a sleeve opening at one end. The side end of the embossing mold 23 is threadedly fixed to the embossing roller 2 by screws 28. The two ends of the embossing roller 2 are symmetrically fixedly connected with threaded interfaces 27. The surface of the connecting shaft 8 is fitted with a threaded sleeve 26, and the connecting shaft 8 is spliced ​​with the threaded interface 27 and then threadedly fixed by nuts 25. The installation methods of the pressure roller 3, roller shaft 4 and winding shaft 5 are the same as the installation method of the embossing roller 2. This device is selectively provided by this technical field.

[0022] Working principle: First, select the corresponding embossing mold 23 according to the required embossing style, put it on the surface of the embossing roller 2, and fix it to the embossing roller 2 with screws 28. Then, after the embossing roller 2 is clamped between the two corresponding connecting shafts 8, the connecting shafts 8 are spliced ​​with the corresponding threaded interface 27. Then, tighten the nut 25 to fix it with threads, so that the embossing roller 2 can be installed quickly and easily disassembled. At this time, before using the device body 1, the threaded rods 10 on both sides can be tightened according to the width of the polyvinyl chloride film to be embossed, and the position of the limiting plate 22 can be adjusted so that the two limiting plates 22 of each group contact the two sides of the polyvinyl chloride film respectively, limiting the polyvinyl chloride film and preventing misalignment during rolling, which would affect the embossing effect. This invention features a design that allows for the disassembly and assembly of the embossing roller 2 and the pressure roller 3 within the main body 1, facilitating their replacement and broadening their applicability. Furthermore, a set of limiting plates 22 are provided on the side walls of the pressure roller 3 and the roller shaft 4 to limit the movement of the PVC film during transport, preventing misalignment from affecting the embossing effect.

[0023] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. An embossing device for preparing polyvinyl chloride film, comprising a device body (1), characterized in that: The device body (1) is provided with two symmetrical connecting shafts (8), and the two connecting shafts (8) are respectively connected to an embossing roller (2) and a pressure roller (3). The pressure roller (3) is provided with a roller shaft (4) and a winding shaft (5) that are rotatably connected to the inner wall of the device body (1) in front of it. One end of the device body (1) is provided with a movable opening (21), and the connecting shaft (8) on the side near the movable opening (21) passes through the movable opening (21). The other end of the device body (1) is embedded with a first electric guide rail (6). The connecting shaft (8) on the upper side is rotatably connected to the movable end of the first electric guide rail (6). The outer opening of the movable opening (21) is symmetrically provided with a second electric guide rail (7) that is fixedly connected to the outer wall of the device body (1). The movable ends of the two second electric guide rails (7) are rotatably connected to a rotating shaft (12). A connecting plate (14) is sleeved between the two rotating shafts (12), and the connecting plate (14) is rotatably connected to the connecting shaft (8) located on the upper side. The surfaces of the two connecting shafts (8) are respectively fixedly connected with a first gear (13) and a fourth gear (19). A second gear (16) and a third gear (17) are provided between the first gear (13) and the fourth gear (19), and the first gear (13), the second gear (16), the third gear (17) and the fourth gear (19) are meshed and connected in sequence. An extension shaft (15) is connected to each of the first gear (13), the second gear (16), the third gear (17) and the fourth gear (19). A connecting plate (20) is rotatably connected between two adjacent extension shafts (15). A laser range sensor (24) is embedded in the bottom wall of the embossing roller (2).

2. The embossing device for preparing polyvinyl chloride film according to claim 1, characterized in that: The device body (1) has two brackets fixedly connected to its side. A first servo motor (9) and a second servo motor (11) are fixedly connected to the two brackets respectively. The output end of the first servo motor (9) is connected to the extension shaft (15) on the fourth gear (19), and the output end of the second servo motor (11) is connected to the winding shaft (5).

3. The embossing device for preparing polyvinyl chloride film according to claim 1, characterized in that: A set of limiting plates (22) are symmetrically installed on the outer wall of the pressure roller (3) near the roller shaft (4) and on the bottom wall of the roller shaft (4). The limiting plates (22) are in contact with the side walls of the pressure roller (3) and the roller shaft (4), respectively. Each set of two limiting plates (22) is rotatably connected to a threaded rod (10) at one end away from each other.

4. The embossing device for preparing polyvinyl chloride film according to claim 1, characterized in that: The device body (1) has symmetrically opened screw holes at both ends corresponding to multiple threaded rods (10), and the threaded rods (10) pass through the screw holes and are threadedly connected to them.

5. The embossing device for preparing polyvinyl chloride film according to claim 1, characterized in that: The embossing roller (2) is fitted with an embossing mold (23) with an opening at one end. The side end of the embossing mold (23) is threaded to the embossing roller (2) by screws (28).

6. The embossing device for preparing polyvinyl chloride film according to claim 1, characterized in that: The embossing roller (2) has threaded interfaces (27) symmetrically fixed at both ends. The connecting shaft (8) is fitted with a threaded sleeve (26), and the connecting shaft (8) and the threaded interface (27) are spliced ​​together and fixed by a nut (25) thread.

7. The embossing device for preparing polyvinyl chloride film according to claim 1, characterized in that: The device body (1) is fixedly connected to a controller that controls the first servo motor (9), the second servo motor (11), the first electric guide rail (6), the second electric guide rail (7), and the laser rangefinder (24).

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