Flattening device for plastic film processing
By designing a flattening device, which utilizes components such as a pressure plate, servo motor, felt, and air jet pipe, the problem of uneven plastic film surface was solved, achieving straightening and flattening of the film and extending its service life.
Patent Information
- Application Number
- CN202423073705.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-12
AI Technical Summary
The uneven surface of plastic film after extrusion makes it prone to wrinkles and tearing, thus shortening its service life.
A flattening device was designed, including a pressure plate, a servo motor, a velvet cloth, an air jet pipe, and a third roller. By adjusting the film thickness, increasing the tension, using hot air to eliminate wrinkles, and implementing automatic cutting functions, the film can be straightened and flattened.
It effectively reduces wrinkles on the film surface, improves service life, and increases film smoothness and production efficiency.
Smart Images
Figure CN223777782U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic film processing technology, specifically a flattening device for plastic film processing. Background Technology
[0002] Films made of polyvinyl chloride, polyethylene, polypropylene, polystyrene, and other resins are used for packaging and as a coating layer. Plastic packaging and plastic packaging products are taking up an increasingly large share of the market, especially composite plastic flexible packaging, which has been widely used in the food, pharmaceutical, and chemical industries.
[0003] The production of plastic film begins with the raw materials being extruded into a film prototype using an extruder. Next, the film undergoes processes such as stretching to improve its properties. After these processes, a set of high-precision rollers are used to flatten the film, and finally, it is wound up and packaged.
[0004] After plastic film is extruded in an extruder, the surface of the newly formed film will be uneven, resulting in wrinkles. During subsequent use, the wrinkled parts of the film are more prone to tearing than the smooth parts, thus shortening the service life of the film.
[0005] Therefore, a flattening device for plastic film processing is proposed to address the above problems. Utility Model Content
[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A flattening device for processing plastic film according to this utility model includes a base, a pair of first support plates fixedly connected to the top of the base; a first roller rotatably connected to the end of the first support plate; a pair of second support plates slidably connected to the surface of the base; a second roller rotatably connected to the end of the second support plate; a support frame fixedly connected to the top of the first support plate; a cylinder fixedly connected to the top of the support frame; a round rod fixedly connected to the output end of the cylinder; the round rod passes through and is slidably connected to the support frame; the bottom of the round rod is fixedly... A pressure plate is attached; the pressure plate and the inner wall of the support frame are slidably connected; a pair of upright plates are fixedly connected to the middle of the base; a winding roller is rotatably connected to the end of the upright plate; an adjustment component is provided at the end of the base; by adding a pressure plate, the film thickness can be adjusted before the second roller, thereby reducing the unevenness of the film thickness. When the pressure plate moves the film, it provides assistance, thereby increasing the straightening of the film during movement. It can generate tension on the film, so that the film is straightened and then flattened by the first and second rollers, which can reduce the wrinkles on the surface. When the wrinkles are reduced, the film tearing can be reduced, thereby increasing the service life of the film.
[0008] Preferably, the adjustment assembly includes a fixed plate; the fixed plate and the base are fixedly connected; a servo motor is fixedly connected to the side wall of the fixed plate; a threaded rod is fixedly connected to the output end of the servo motor; the threaded rod is through-hole and rotatably connected to the fixed plate; a push plate is fixedly connected to the inner wall of the second support plate; the threaded rod is through-hole and threadedly connected to the push plate; by adding a servo motor, the thickness of the film can be flexibly adjusted, so that when the requirements for the film are different, the servo motor can be used to quickly adjust the second roller, increasing the rate of flattening the film. At the same time, by cooperating the pressure plate and the second roller, the thickness of the film can be adjusted multiple times, thereby increasing the flatness of the film.
[0009] Preferably, a fleece is fixed to the bottom of the pressure plate; the fleece and the pressure plate are arranged correspondingly; the fleece is flexible, so it reduces scratches on the film when in contact with the film, thereby reducing damage to the film.
[0010] Preferably, the support frame has a jet pipe fixed to its side wall; the top of the jet pipe is connected to an air guide pipe; by adding a jet pipe to blow hot air onto the film, the wrinkles on the film surface can be smoothed out by themselves, thereby reducing the wrinkles that have solidified on the film and increasing the smoothness of the film surface.
[0011] Preferably, a pair of spring telescopic rods are fixedly connected inside the upright plate; a third roller is rotatably connected to the end of the spring telescopic rod; the third roller is located below the take-up roller; by adding the third roller, the gas trapped between the film and the take-up roller can be squeezed out, thereby reducing wrinkles caused by the presence of gas inside the film.
[0012] Preferably, a blade is slidably connected to the end of the pressure plate; a compression spring is slidably connected to the top of the pressure plate; the compression spring and the blade are fixedly connected; by adding a blade, the film can be quickly cut when the take-up roller needs to be replaced; when the blade is not in use, the compression spring will return the blade to its original height, so that the blade will not come into contact with the film when the pressure plate and the film are in contact.
[0013] The advantages of this utility model are:
[0014] 1. The plastic film processing flattening device of this utility model can adjust the film thickness before the second roller by adding a pressure plate, thereby reducing the film thickness variation. When the pressure plate moves the film, it provides assistance, thereby increasing the straightening of the film during movement. It can also generate tension on the film, so that the film is straightened before being flattened by the first and second rollers, which can reduce the wrinkles on the surface. When the wrinkles are reduced, the film tearing can be reduced, thereby increasing the service life of the film.
[0015] 2. The plastic film processing flattening device of this utility model can flexibly adjust the thickness of the film by adding a servo motor. When the requirements for the film are different, the servo motor can be used to quickly adjust the second roller, increasing the flattening rate of the film. At the same time, by cooperating the pressure plate and the second roller, the thickness of the film can be adjusted multiple times, thereby increasing the flatness of the film. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. 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 main body of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the fixing plate in this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the third roller in this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the pressure plate of this utility model;
[0021] Figure 5 This is a schematic diagram of the blade in this utility model.
[0022] In the diagram: 1. Base; 11. First support plate; 12. First roller; 13. Second roller; 14. Support frame; 15. Cylinder; 16. Round rod; 17. Pressure plate; 18. Second support plate; 19. Vertical plate; 101. Take-up roller; 102. Adjustment assembly; 2. Fixed plate; 21. Servo motor; 22. Threaded rod; 23. Push plate; 3. Flannel; 4. Air jet pipe; 41. Air guide pipe; 5. Spring telescopic rod; 51. Third roller; 6. Blade; 61. Compression spring. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0024] Specific implementation examples are given below.
[0025] like Figures 1 to 5 As shown in the embodiment of this utility model, a flattening device for processing plastic film includes a base 1. A pair of first support plates 11 are fixedly connected to the top of the base 1. A first roller 12 is rotatably connected to the end of the first support plate 11. A pair of second support plates 18 are slidably connected to the surface of the base 1. A second roller 13 is rotatably connected to the end of the second support plate 18. A support frame 14 is fixedly connected to the top of the first support plate 11. A cylinder 15 is fixedly connected to the top of the support frame 14. A round rod 16 is fixedly connected to the output end of the cylinder 15. The round rod 16 passes through the support frame 14. The base 1 is slidably connected to the support frame 14; a pressure plate 17 is fixedly connected to the bottom of the round rod 16; the pressure plate 17 and the inner wall of the support frame 14 are slidably connected; a pair of upright plates 19 are fixedly connected to the middle of the base 1; a winding roller 101 is rotatably connected to the end of the upright plate 19; an adjustment component 102 is provided at the end of the base 1; during operation, the second roller 13 is first moved closer to the first roller 12 using the adjustment component 102 to fix the distance between the first roller 12 and the second roller 13, and then the cylinder 15 is activated to move the round rod 16 downward. When the round rod 16 moves downward, it will push the pressure plate 17, at which time the pressure plate 17 will... The rod 16 moves closer to the first roller 12. When the distance between the pressure plate 17 and the first roller 12 reaches the required standard, the rod 16 stops moving. The film is then placed through the gap between the first roller 12 and the pressure plate 17, then through the gap between the first roller 12 and the second roller 13, and finally wound onto the surface of the take-up roller 101. When the take-up roller 101 winds and winds the film, it pulls the film. At this time, the film is first squeezed by the support frame 14 and the first roller 12. Since the pressure plate 17 is fixed, the resistance increases when the film comes into contact with the pressure plate 17. At this time, the film is stretched, causing the film's interior to... Tension is generated to straighten the film, which is then squeezed by the first roller 12 and the second roller 13 to flatten it and finally collected by the take-up roller 101. By adding a pressure plate 17, the film thickness can be adjusted before the second roller 13 to reduce the film thickness variation. When the pressure plate 17 moves the film, it provides assistance to increase the straightening of the film during movement. It can generate tension on the film so that the film is straightened and then flattened by the first roller 12 and the second roller 13, which can reduce the wrinkles on the surface. When the wrinkles are reduced, the film tearing can be reduced, thereby increasing the service life of the film.
[0026] like Figure 2As shown, the adjustment assembly 102 includes a fixed plate 2; the fixed plate 2 and the base 1 are fixedly connected; a servo motor 21 is fixedly connected to the side wall of the fixed plate 2; a threaded rod 22 is fixedly connected to the output end of the servo motor 21; the threaded rod 22 is through-hole and rotatably connected to the fixed plate 2; a push plate 23 is fixedly connected to the inner wall of the second support plate 18; the threaded rod 22 is through-hole and threadedly connected to the push plate 23; during operation, when it is necessary to adjust the distance between the second rollers 13, the servo motor 21 can be controlled to rotate the threaded rod 22. At this time, the second support plate 18 will slide along the surface of the base 1 to adjust the distance between the first roller 12 and the second roller 13, so that the film is pressed between the pressure plate 17 and the first roller 12. After extrusion, the film is further pressed by the first roller 12 and the second roller 13. This allows for the limitation of the film thickness during flattening, thereby increasing the flexibility of film thickness. When adjusting the second roller 13, the distance between the pressure plate 17 and the first roller 12 needs to be adjusted to be slightly larger than the distance between the first roller 12 and the second roller 13. This allows for the adjustment of the thickness by coordinating the first roller 12 and the second roller 13. By adding a servo motor 21, the film thickness can be flexibly adjusted. When the requirements for the film are different, the servo motor 21 can be used to quickly adjust the second roller 13, increasing the flattening rate of the film. At the same time, by coordinating the pressure plate 17 and the second roller 13, the film thickness can be adjusted multiple times, thereby increasing the flatness of the film.
[0027] like Figures 1 to 4 As shown, a velvet cloth 3 is fixed to the bottom of the pressure plate 17; the velvet cloth 3 and the pressure plate 17 are arranged correspondingly; during operation, by adding the velvet cloth 3, the movement resistance of the film on the pressure plate 17 can be increased. When the velvet cloth 3 contacts the film, the fibers on the surface will be adsorbed on the surface of the film, increasing the contact area between the film and the velvet cloth 3; because the fibers on the surface of the velvet cloth 3 are flexible, they reduce scratches on the film when in contact with the film, thereby reducing damage to the film.
[0028] like Figures 1 to 4 As shown, a jet pipe 4 is fixed to the side wall of the support frame 14; a guide pipe 41 is connected to the top of the jet pipe 4; during operation, after the film passes through the pressure plate 17, the guide pipe 41 is connected to a hot air generator to transmit hot air through the guide pipe 41 to the inside of the jet pipe 4 and then spray it onto the surface of the film. The hot air heats the film, causing the wrinkles that have solidified during processing to be smoothed out again, thereby eliminating the wrinkles; by adding the jet pipe 4 to blow hot air out of the film, the wrinkles on the surface of the film can be smoothed out by themselves, thereby reducing the elimination of the solidified wrinkles on the film and increasing the smoothness of the film surface.
[0029] like Figure 3As shown, a pair of spring telescopic rods 5 are fixedly connected inside the upright plate 19; a third roller 51 is rotatably connected to the end of the spring telescopic rod 5; the third roller 51 is located below the take-up roller 101; during operation, when the take-up roller 101 winds up the film, the outer wall of the film will contact the third roller 51, causing the third roller 51 to roll. As the take-up roller 101 continuously winds up the film, it will generate a pushing force on the third roller 51. At this time, the spring telescopic rods 5 will retract but will still generate a pushing force on the third roller 51, causing the third roller 51 to rotate against the film surface; by adding the third roller 51, the gas trapped between the film and the take-up roller 101 can be squeezed out, thereby reducing wrinkles caused by the presence of gas inside the film.
[0030] like Figure 5 As shown, a blade 6 is slidably connected to the end of the pressure plate 17; a compression spring 61 is slidably connected to the top of the pressure plate 17; the compression spring 61 and the blade 6 are fixedly connected; during operation, when the take-up roller 101 is about to reach its limit, the blade 6 is pressed down to puncture the film, and then the blade 6 slides along the pressure plate 17 to cut the film, which can then be replaced after the take-up roller 101 has finished winding; by adding the blade 6, the film can be quickly cut when the take-up roller 101 needs to be replaced. When the blade 6 is not in use, the compression spring 61 will return the blade 6 to its original height, so that the blade 6 will not contact the film when the pressure plate 17 and the film are in contact.
[0031] Working principle: First, the adjustment component 102 is used to move the second roller 13 closer to the first roller 12, thereby fixing the distance between the first roller 12 and the second roller 13. Then, the cylinder 15 is activated to move the round rod 16 downward. When the round rod 16 moves downward, it pushes the pressure plate 17, which then moves closer to the first roller 12. When the distance between the pressure plate 17 and the first roller 12 reaches the required standard, the movement of the round rod 16 is stopped. Then, the film is placed through the gap between the first roller 12 and the pressure plate 17, then through the gap between the first roller 12 and the second roller 13, and finally wound onto the surface of the take-up roller 101. When the take-up roller 101 winds and takes the film, it pulls the film. The film is first squeezed by the support frame 14 and the first roller 12. Since the pressure plate 17 is fixed, the resistance increases when the film contacts the pressure plate 17, causing the film to be stretched and internal tension to straighten it. Subsequently, the film is squeezed by the first roller 12 and the second roller 13 to flatten it, and finally, it is collected by the take-up roller 101. When it is necessary to adjust the distance between the second rollers 13, the servo motor 21 can be controlled to rotate the threaded rod 22. At this time, the second support plate 18 will slide along the surface of the base 1, thereby adjusting the distance between the first roller 12 and the second roller 13. This ensures that after the film is squeezed by the pressure plate 17 and the first roller 12, it is then compressed by the first roller 13. Roller 12 and second roller 13 press the film, thereby limiting the film thickness during flattening and increasing film thickness flexibility. Adjusting the second roller 13 requires adjusting the distance between the pressure plate 17 and the first roller 12 to be slightly larger than the distance between the first roller 12 and the second roller 13, thus coordinating the first roller 12 and the second roller 13 to adjust the thickness. Adding a velour cloth 3 increases the resistance to film movement on the pressure plate 17. When the cloth 3 contacts the film, the fibers on its surface adhere to the film surface, increasing the contact area between the film and the cloth 3. After the film passes through the pressure plate 17, the air duct 41 connects to a hot air generator, transferring hot air through the air duct 41 to the jet pipe 4. The hot air is then sprayed onto the film surface, heating the film and smoothing out the wrinkles that have solidified during processing, thus eliminating the wrinkles. When the take-up roller 101 winds up the film, the outer wall of the film comes into contact with the third roller 51, causing the third roller 51 to roll. As the take-up roller 101 continuously winds up the film, it exerts a pushing force on the third roller 51. At this time, the spring telescopic rod 5 will retract but will still exert a pushing force on the third roller 51, causing the third roller 51 to rotate against the film surface. When the take-up roller 101 is about to reach its limit, the blade 6 is pressed down to puncture the film. Then the blade 6 slides along the pressure plate 17 to cut the film. The take-up roller 101 can be replaced after it has finished winding up the film.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A calendering device for processing plastic films, comprising a base (1), characterized in that: The base (1) top fixed connection has a pair of first support plate (11), the first support plate (11) end rotation connection has first roller (12), the base (1) surface sliding connection has a pair of second support plate (18), the second support plate (18) end rotation connection has second roller (13), the first support plate (11) top fixed connection has support frame (14), the support frame (14) top fixed connection has pneumatic cylinder (15), the pneumatic cylinder (15) output fixed connection has round bar (16), the round bar (16) in support frame (14) through arrangement and sliding connection, the round bar (16) bottom fixed connection has pressing plate (17), the pressing plate (17) and support frame (14) inner wall is sliding connection, the base (1) middle fixed connection has a pair of vertical plate (19), the vertical plate (19) end rotation connection has winding roller (101), the base (1) end is provided with adjusting assembly (102).
2. The flattening device for plastic film processing according to claim 1, characterized in that: The adjusting assembly (102) includes fixed plate (2), the fixed plate (2) and base (1) are fixedly connected, the fixed plate (2) side wall is fixedly connected with servo motor (21), the servo motor (21) output is fixedly connected with threaded rod (22), the threaded rod (22) is throughly arranged on the fixed plate (2) and rotationally connected, the second support plate (18) inner wall is fixedly connected with push plate (23), the threaded rod (22) is throughly arranged in the push plate (23) and is screw connected.
3. The flattening device for plastic film processing according to claim 2, characterized in that: The pressing plate (17) bottom fixed connection has flannel (3), the flannel (3) and pressing plate (17) are correspondingly arranged.
4. The flattening device for plastic film processing according to claim 3, characterized in that: The support frame (14) side wall is fixedly connected with air jet pipe (4), and the air jet pipe (4) top is communicated with air guide pipe (41).
5. The flattening device for plastic film processing according to claim 4, characterized in that: The vertical plate (19) is internally fixedly connected with a pair of spring telescopic rods (5), the spring telescopic rod (5) end rotation connection has third roller (51), the third roller (51) is located below the winding roller (101).
6. The flattening device for plastic film processing according to claim 5, characterized in that: The end of the pressing plate (17) is slidingly connected with a blade (6), the top of the pressing plate (17) is slidingly connected with a compression spring (61), and the compression spring (61) and the blade (6) are in fixed connection.