Crease-resistant device for polyurethane film

Abstract

The utility model discloses a polyurethane film anti-wrinkling device which comprises a supporting frame, second connecting plates are symmetrically and slidably connected to the interior of the supporting frame, a jacking roller is rotatably connected between the two second connecting plates, a first connecting plate is fixedly connected to the bottoms of the second connecting plates, and telescopic springs are symmetrically and fixedly connected to the top of the first connecting plate. The film tensioning device has the advantages that the first connecting plate can drive the jacking roller to move through the second connecting plate under the elastic force effect of the telescopic spring, the jacking roller can always provide appropriate tension for a film, manual operation is not needed, it is guaranteed that the film is in a tensioned state all the time, and the film tensioning effect is improved. And the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of film production, in particular to an anti-wrinkle device for a polyurethane film. Background Art

[0002] Film blowing refers to heating and melting plastic particles and blowing them into a film, and then passing through a herringbone plate to obtain a finished sheet film with a two-layer structure. The existing film blowing machine includes an extruder, a film head, an air ring, a calender roller, a traction roller, and a winding roller. During the transportation of the film, wrinkles and unevenness easily appear on the surface of the film. When using slitting machines, winders and other machines to process wrinkled and uneven films, the film is easily damaged. At the same time, the film will be uneven at both ends when the film is wound on the winding roller, causing wrinkles in the film, affecting the quality and appearance of the final rolled film product. The existing utility model patent with application number: CN201921112610.5 proposes a polyurethane film anti-wrinkle device. It includes a first smoothing mechanism and a second smoothing mechanism, the first smoothing mechanism and the second smoothing mechanism have the same structure and are symmetrically arranged on the left and right sides of the winding device, the first smoothing mechanism and the second smoothing mechanism both include a chassis, a symmetrically arranged first cylinder and a second cylinder are slid on the chassis, a fixed connecting rod is arranged between the first cylinder and the second cylinder, the ends of the telescopic rods of the first cylinder and the second cylinder are fixedly connected with arc-shaped smoothing claws, the front and rear ends of the chassis are symmetrically arranged with a third cylinder and a fourth cylinder, the ends of the telescopic rods of the third cylinder and the fourth cylinder are fixedly connected with a push plate, the push plate on the telescopic rod of the third cylinder is fixedly connected to the first cylinder, and the push plate on the telescopic rod of the fourth cylinder is fixedly connected to the second cylinder. Wrinkles and unevenness of the film are avoided, and the quality and appearance of the film are guaranteed. During use, the device in the above patent is difficult to adjust and control the tension of the film itself according to the quality of the film. Due to excessive stretching force, the film may be deformed and broken due to winding during storage, reducing the practicality of the device. Therefore, an anti-wrinkle device for polyurethane film is provided to solve the above problem. Utility Model Content

[0003] The purpose of the utility model is to provide an anti-wrinkle device for polyurethane film, so as to solve the problem that the device proposed in the above background technology is difficult to adjust and control the tension of the film itself according to the quality of the film during use, and the film may be deformed and broken due to winding during the storage process due to excessive stretching force, thereby reducing the practicability of the device.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] The utility model provides an anti-wrinkle device for a polyurethane film, comprising a support frame, wherein a second connecting plate is symmetrically and slidably connected inside the support frame, a tightening roller is rotatably connected between two of the second connecting plates, a first connecting plate is fixedly connected to the bottom of the second connecting plate, and a telescopic spring is symmetrically and fixedly connected to the top of the first connecting plate.

[0006] First, the end of the polyurethane film is passed around the upper part of the driving roller, then passed around the lower part of the tensioning roller, and finally connected to the winding roller, the servo motor is started to drive the rotating shaft to rotate, and the rotating shaft drives the winding roller to rotate to realize the winding of the polyurethane film. During the winding process of the polyester film, the first connecting plate drives the second connecting plate to move under the elastic force of the telescopic spring, and the second connecting plate drives the tensioning roller to move downward, so that the tensioning roller can always provide a suitable tension to the film, and this operation does not need to be performed manually, ensuring that the film is always in a tensioned state, effectively preventing the polyurethane film from wrinkling when it is rolled up, and improving the winding quality of the polyurethane film, rotating the turntable drives the rotating rod to rotate, the rotating rod drives the first bevel gear to rotate, and the threaded rod is driven to rotate under the action of the first bevel gear and the second bevel gear, and the threaded rod is driven to rotate, and the threaded rod pushes the cleaning plate to move through the moving rod to clean the outside of the film, thereby improving the practicability of the device.

[0007] As a preferred solution of the utility model, a first vertical plate and a second vertical plate are fixedly connected to the top of the support frame, and a transmission roller is rotatably connected between the first vertical plate and the second vertical plate.

[0008] First, the end of the polyurethane film is passed around the upper part of the driving roller, then passed around the lower part of the tensioning roller, and finally connected to the winding roller.

[0009] As a preferred solution of the utility model, a servo motor is fixedly connected to the outer side of the second vertical plate, a rotating shaft is rotatably connected between the first vertical plate and the second vertical plate, a winding roller is fixedly connected to the outer side of the rotating shaft, and the output end of the servo motor is fixedly connected to the rotating shaft.

[0010] The servo motor is started to drive the rotating shaft to rotate, and the rotating shaft drives the winding roller to rotate to realize the winding of the polyurethane film.

[0011] As a preferred solution of the utility model, a threaded rod is rotatably connected inside the support frame, a moving rod is threadedly connected outside the threaded rod, and a cleaning plate is fixedly connected to the top of the moving rod.

[0012] The threaded rod pushes the cleaning plate to move through the moving rod to clean the outer side of the film.

[0013] As a preferred solution of the utility model, the support frame is internally rotatably connected with a rotating rod, one end of the rotating rod is fixedly connected with a first bevel gear, the outer side of the threaded rod is fixedly connected with a second bevel gear, the second bevel gear is meshingly connected with the first bevel gear, and the other end of the rotating rod is fixedly connected with a turntable.

[0014] The rotating disk drives the rotating rod to rotate, the rotating rod drives the first bevel gear to rotate, and the threaded rod is driven to rotate under the action of the first bevel gear and the second bevel gear.

[0015] As a preferred solution of the utility model, the support frame is internally equidistantly slidably connected with a limit rod, the limit rod is fixedly connected to the cleaning plate, and the bottom of the limit rod is fixedly connected to the limit plate.

[0016] It is convenient to limit the cleaning plate to prevent the cleaning plate from shifting during movement.

[0017] The beneficial effect achieved by the utility model is that: through the arrangement of the telescopic spring, the second connecting plate and the tensioning roller, the first connecting plate can drive the tensioning roller to move through the second connecting plate under the elastic force of the telescopic spring, so that the tensioning roller can always provide a suitable tension to the film, and this operation does not need to be performed manually, ensuring that the film is always in a tensioned state, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the internal three-dimensional structure of the utility model;

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the moving rod in the utility model;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the tension roller in the utility model;

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the cleaning plate in the utility model.

[0024] In the figure: 1. support frame; 2. first vertical plate; 3. second vertical plate; 4. servo motor; 5. first connecting plate; 6. winding roller; 7. driving roller; 8. second connecting plate; 9. rotating shaft; 10. tightening roller; 11. limiting rod; 12. limiting plate; 13. cleaning plate; 14. rotating rod; 15. turntable; 16. moving rod; 17. first bevel gear; 18. second bevel gear; 19. threaded rod; 20. telescopic spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1 to 5 The utility model provides an anti-wrinkle device for polyurethane film, including a support frame 1, a second connecting plate 8 is symmetrically and slidably connected inside the support frame 1, a tightening roller 10 is rotatably connected between the two second connecting plates 8, a first connecting plate 5 is fixedly connected to the bottom of the second connecting plate 8, and a telescopic spring 20 is symmetrically and fixedly connected to the top of the first connecting plate 5.

[0027] It can be understood that the end of the polyurethane film is first passed around the upper part of the transmission roller 7, then passed around the lower part of the tensioning roller 10, and finally connected to the winding roller 6, and the servo motor 4 is started to drive the rotating shaft 9 to rotate, and the rotating shaft 9 drives the winding roller 6 to rotate to realize the winding of the polyurethane film. During the winding process of the polyester film, the first connecting plate 5 drives the second connecting plate 8 to move under the elastic force of the telescopic spring 20, and the second connecting plate 8 drives the tensioning roller 10 to move downward, so that the tensioning roller 10 can always provide a suitable tension to the film, and this operation does not need to be performed manually, ensuring that the film is always in a tensioned state, effectively preventing the polyurethane film from wrinkling when it is rolled up, and improving the winding quality of the polyurethane film, rotating the turntable 15 drives the rotating rod 14 to rotate, and the rotating rod 14 drives the first bevel gear 17 to rotate, and under the action of the first bevel gear 17 and the second bevel gear 18, drives the threaded rod 19 to rotate, and the threaded rod 19 drives the cleaning plate 13 to move through the moving rod 16 to clean the outside of the film, thereby improving the practicability of the device.

[0028] Furthermore, a first vertical plate 2 and a second vertical plate 3 are fixedly connected to the top of the support frame 1 , and a transmission roller 7 is rotatably connected between the first vertical plate 2 and the second vertical plate 3 .

[0029] It can be understood that the end of the polyurethane film is first passed around the upper part of the driving roller 7 , then passed around the lower part of the tensioning roller 10 , and finally connected to the winding roller 6 .

[0030] Furthermore, a servo motor 4 is fixedly connected to the outer side of the second vertical plate 3 , a rotating shaft 9 is rotatably connected between the first vertical plate 2 and the second vertical plate 3 , a winding roller 6 is fixedly connected to the outer side of the rotating shaft 9 , and the output end of the servo motor 4 is fixedly connected to the rotating shaft 9 .

[0031] It can be understood that the servo motor 4 is started to drive the rotating shaft 9 to rotate, and the rotating shaft 9 drives the winding roller 6 to rotate to realize the winding of the polyurethane film.

[0032] Furthermore, a threaded rod 19 is rotatably connected inside the support frame 1 , a movable rod 16 is threadedly connected to the outer side of the threaded rod 19 , and a cleaning plate 13 is fixedly connected to the top of the movable rod 16 .

[0033] It is understandable that the threaded rod 19 pushes the cleaning plate 13 to move through the moving rod 16 to clean the outer side of the film.

[0034] Furthermore, the support frame 1 is internally rotatably connected to a rotating rod 14, one end of which is fixedly connected to a first bevel gear 17, the outer side of the threaded rod 19 is fixedly connected to a second bevel gear 18, the second bevel gear 18 is meshingly connected to the first bevel gear 17, and the other end of the rotating rod 14 is fixedly connected to a turntable 15.

[0035] It can be understood that the rotating disk 15 drives the rotating rod 14 to rotate, the rotating rod 14 drives the first bevel gear 17 to rotate, and the threaded rod 19 is driven to rotate under the action of the first bevel gear 17 and the second bevel gear 18.

[0036] Furthermore, a limiting rod 11 is equidistantly slidably connected inside the support frame 1 , the limiting rod 11 is fixedly connected to the cleaning plate 13 , and the bottom of the limiting rod 11 is fixedly connected to the limiting plate 12 .

[0037] It can be understood that it is convenient to limit the cleaning plate 13 to prevent the cleaning plate 13 from shifting during the movement.

[0038] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0040] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyurethane film anti-wrinkle device, comprising a support frame (1), characterized in that: The support frame (1) is symmetrically and slidably connected to a second connecting plate (8) inside, a tightening roller (10) is rotatably connected between the two second connecting plates (8), the bottom of the second connecting plate (8) is fixedly connected to a first connecting plate (5), and the top of the first connecting plate (5) is symmetrically and fixedly connected to a telescopic spring (20).

2. The anti-wrinkle device for polyurethane film according to claim 1, characterized in that: The top of the support frame (1) is fixedly connected to a first vertical plate (2) and a second vertical plate (3), and a transmission roller (7) is rotatably connected between the first vertical plate (2) and the second vertical plate (3).

3. The anti-wrinkle device for polyurethane film according to claim 2, characterized in that: A servo motor (4) is fixedly connected to the outer side of the second vertical plate (3); a rotating shaft (9) is rotatably connected between the first vertical plate (2) and the second vertical plate (3); a winding roller (6) is fixedly connected to the outer side of the rotating shaft (9); and an output end of the servo motor (4) is fixedly connected to the rotating shaft (9).

4. The anti-wrinkle device for polyurethane film according to claim 1, characterized in that: The support frame (1) is rotatably connected to a threaded rod (19) inside, the threaded rod (19) is threadedly connected to a moving rod (16) outside, and the top of the moving rod (16) is fixedly connected to a cleaning plate (13).

5. The anti-wrinkle device for polyurethane film according to claim 4, characterized in that: The support frame (1) is rotatably connected to a rotating rod (14) inside, one end of the rotating rod (14) is fixedly connected to a first bevel gear (17), the outer side of the threaded rod (19) is fixedly connected to a second bevel gear (18), the second bevel gear (18) is meshingly connected to the first bevel gear (17), and the other end of the rotating rod (14) is fixedly connected to a rotating disk (15).

6. The anti-wrinkle device for polyurethane film according to claim 5, characterized in that: The support frame (1) is equidistantly slidably connected to a limit rod (11) inside, the limit rod (11) is fixedly connected to a cleaning plate (13), and the bottom of the limit rod (11) is fixedly connected to a limit plate (12).

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