A device for recycling thin films

Abstract

The utility model discloses a device of recycling of film again, include: rubbing crusher, have feed inlet and mechanical material winding unit, the feed side of feed inlet is provided with cutting mechanism, and the base of cutting mechanism is sequentially provided with unwinding roller, cutting unit and feeding unit along the feed direction, and the feeding unit includes the feeding port surrounded by paired first baffle and second baffle, and the feeding port is located above the feed inlet, and at least one of paired first baffle is separated from another along the feed direction, and paired second baffle is separated from another along the extension direction of first baffle. The recycling film of sheet material larger is cut into strip membrane through cutting mechanism, and the traction force produced by the mechanical material winding unit of rubbing crusher is combined, and the strip membrane is wound into rubbing crusher and is smashed, and the feeding unit is adjusted the size of feeding port through first baffle and second baffle, and the feeding end of strip membrane is conveniently sent to the feed inlet of rubbing crusher, and the strip membrane is gathered and is suitable for the feed inlet of different caliber size.

Description

Technical Field

[0001] This utility model relates to the field of recycling equipment technology, and in particular to a device for recycling thin films. Background Technology

[0002] With people's increasing demands for quality of life and growing environmental awareness, PETG is gradually replacing materials such as PET, PP, PVC, PMMA, and PC in the decorative film industry. However, in actual production, the cost of raw material PETG is higher than that of PET, PP, PVC, PMMA, and PC, and the utilization rate of waste generated during production is poor. Therefore, effective recycling and reuse of PETG has become an urgent need.

[0003] Physical recycling methods, such as crushing and blending the recycled material with other materials, are common. However, larger pieces of recycled material are difficult to feed into the crushing process. If the material is forcibly wound in and mechanically crushed using the mechanical winding force of the crusher, it will inevitably have a negative impact on the lifespan and fineness of the crusher. Therefore, pretreatment is necessary for larger pieces of recycled material before crushing. Utility Model Content

[0004] The purpose of this invention is to overcome the defects in the existing technology and provide a device for recycling film. The device cuts larger recycled film sheets into strips using a cutting mechanism. Combined with the traction force generated by the mechanical winding unit of the pulverizer, the strips are wound into the pulverizer for pulverization. The feeding unit adjusts the size of the feeding port through the first and second baffles to facilitate feeding the feed end of the strip to the feed port of the pulverizer and gathers the strip to fit the feed port of different diameters.

[0005] To achieve the above-mentioned technical effects, the technical solution of this utility model is: a device for recycling thin films, comprising:

[0006] The crusher has a feed inlet and a mechanical winding unit;

[0007] A cutting mechanism is provided on the feeding side of the feed inlet. The base of the cutting mechanism is provided with an unwinding roller, a cutting unit and a feeding unit in sequence along the feeding direction. The feeding unit includes a feeding port surrounded by a pair of first baffles and second baffles. The feeding port is located above the feed inlet. At least one of the pair of first baffles is close to or separate from the other along the feeding direction. The pair of second baffles are close to or separate from each other along the extension direction of the first baffle.

[0008] A preferred technical solution is that the feeding unit further includes a telescopic component, the telescopic end of which is fixedly connected to both sides of one of the first baffles, and the base is provided with a first guide extending along the feeding direction, wherein one of the first baffles is in concave-convex cooperation with the first guide and moves reciprocally along it.

[0009] A preferred technical solution is that the feeding unit further includes a screw, a first slider, and a driving component. The extension direction of the screw is consistent with the extension direction of the first baffle. The first end of the screw is connected to the driving component, and the second end is rotatably connected to the base. The first slider is connected to one end of a pair of second baffles and reciprocates along the axial direction of the screw. The other end of the second baffle is in concave-convex engagement with the first baffle or the base and is slidably connected.

[0010] A preferred technical solution is that the feeding unit further includes a first guide roller, the height of the axis of the first guide roller from the base is greater than the height of the operating surface of the cutting unit from the base, and the first guide roller is located above the screw.

[0011] A preferred technical solution is that the cutting unit includes a cutting platform, a cutting component, and a guide roller, wherein the guide roller is respectively disposed on the infeed side and the discharge side of the cutting platform, and the cutting component is located above the cutting platform;

[0012] The cutting assembly includes a second guide, a first connecting rod, a second connecting rod, and a cutter. The second guide extends laterally along the cutting platform. The third end of the first connecting rod is slidably connected to the second guide via a second slider, and the fourth end is rotatably connected to the second connecting rod via a rotating shaft. The extending direction of the rotating shaft is consistent with the extending direction of the second guide. The cutter is disposed at the end of the second connecting rod opposite to the end connected to the fourth end.

[0013] A preferred technical solution is that the cutter is detachably connected to the second connecting rod, and the cutting edge of the cutter faces the unwinding roller.

[0014] A preferred technical solution is that the cutting platform is provided with a cutting through groove, the cutting through groove extends longitudinally along the cutting platform and is arranged sequentially in the transverse direction, and the cutter corresponds to the cutting through groove and extends along its groove depth.

[0015] A preferred technical solution is that the guide roller is a lifting roller.

[0016] A preferred technical solution is that the fixed end of the unwinding roller is rotatably connected to the base via a supporting vertical rod, the mating end extends radially along the supporting vertical rod, and the base is provided with a limiting groove and a tightening screw that mate with the mating end.

[0017] A preferred technical solution is that the limiting groove includes an inner groove and an outer groove arranged coaxially, the inner groove and the outer groove are in concave-convex fit, the groove opening of the outer groove is facing away from the cutting unit, a first limiting hole is provided on the top side of the outer groove, the inner groove and the outer groove are rotatably connected, the groove opening edge of the inner groove is provided with a second limiting hole corresponding to the first limiting hole, and the tightening screw passes through the first limiting hole and is threadedly connected to the second limiting hole.

[0018] The advantages and beneficial effects of this utility model are as follows:

[0019] The device for recycling the film has a reasonable structure. The cutting mechanism cuts the larger recycled film sheets into strips. Combined with the traction force generated by the mechanical winding unit of the pulverizer, the strips are wound into the pulverizer for pulverization. The feeding unit uses a feeding port surrounded by a pair of first and second baffles to adjust the size of the feeding port so that the feed end of the strip is fed to the feed port of the pulverizer. The feeding unit also gathers the strip to fit the feed port of different diameters. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the cutting mechanism in the film recycling device of this utility model;

[0021] Figure 2 This is another structural diagram of the cutting mechanism;

[0022] Figure 3 This is a partial view of the limiting groove and the engagement of the tightening screw with the unwinding roller;

[0023] Figure 4 This is a schematic diagram of the film recycling channel.

[0024] In the diagram: 1. Unwinding roller; 2. Slitting unit; 2a. Cutting platform; 2b. Cutting assembly; 2c. Guide pressure roller; 3. Feeding unit; 10. Limiting groove; 11. Tightening screw; 12. Second limiting hole; 20. Cutting through groove; 21. First connecting rod; 22. Second connecting rod; 23. Cutter; 24. Second slider; 25. Second guide; 30. First guide roller; 31. First baffle; 32. Second baffle; 33. Screw; 34. First slider; 35. Telescopic component; 100. Base; 101. Inner slot; 102. Outer slot; 300. Feeding port; 311. First guide; 330. Drive component. Detailed Implementation

[0025] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0026] The terms "above" and "below" are used with reference to the normal operating state of the film recycling device and are only for the convenience of describing this utility model and simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] like Figures 1-4 As shown, the film recycling device of this utility model includes a crusher (not shown) and a cutting mechanism. The crusher has a feed inlet and a mechanical winding unit. The cutting mechanism is located on the feed side of the feed inlet. The base 100 of the cutting mechanism is arranged with an unwinding roller 1, a cutting unit 2 and a feeding unit 3 in sequence along the feed direction (indicated by the arrow in the figure). The feeding unit 3 includes a feeding port 300 surrounded by a pair of first baffles 31 and second baffles 32. The feeding port 300 is located above the feed inlet. At least one of the pair of first baffles 31 is close to or separate from the other along the feed direction. The pair of second baffles 32 are close to or separate from each other along the extension direction of the first baffles 31.

[0029] The larger recycled film sheets are cut into strips by the cutting mechanism. Combined with the traction force generated by the mechanical winding unit of the pulverizer, the strips are wound into the pulverizer for pulverization. The feeding unit 3 uses a feeding port 300 surrounded by a pair of first baffles 31 and second baffles 32 to adjust the size of the feeding port 300 so that the feed end of the strip is fed to the feed port of the pulverizer and the strip is gathered to fit the feed port of different diameters.

[0030] The feeding unit 3 also includes a telescopic member 35, the telescopic end of which is fixedly connected to both sides of a first baffle 31. The base 100 is provided with a first guide member 311 extending along the feeding direction. One of the first baffles 31 is in concave-convex fit with the first guide member 311 and moves back and forth along it. Specifically, the first baffle 31 connected to the telescopic end of the telescopic member 35 is a movable baffle, and the other first baffle 31 is a fixed baffle, which simplifies the structure of the feeding unit 3. The feeding end of the strip film passes through the feeding port 300. By the pair of first baffles 31 approaching each other and the pair of second baffles 32 approaching each other, the strip film is gathered and guided to the feeding port.

[0031] The pulverizer was purchased from Quanzhou Juyuan Plastic Machinery Co., Ltd., model JY-550A#. The pulverizer has an open feed inlet.

[0032] The feeding unit 3 also includes a screw 33, a first slider 34, and a drive unit 330. The extension direction of the screw 33 is consistent with the extension direction of the first baffle 31. The first end of the screw 33 is connected to the drive unit 330, and the second end is rotatably connected to the base 100. The first slider 34 is connected to one end of a pair of second baffles 32 and reciprocates along the axial direction of the screw 33. The other end of the second baffle 32 is in a concave-convex fit with the first baffle 31 or the base 100 and is slidably connected. The screw 33 is a bidirectional screw, and the first sliders 34 are arranged in pairs. Driven by the drive unit 330, the first sliders 34 reciprocate along the axial direction of the screw 33, thus bringing the pairs of second baffles 32 closer together or apart. To simplify the structure, the other end of the second baffle 32 is in a concave-convex fit with a fixed baffle and is slidably connected. The drive unit 330 is a motor.

[0033] The feeding unit 3 also includes a first guide roller 30. The height of the axis of the first guide roller 30 from the base 100 is greater than the height of the operating surface of the cutting unit 2 from the base 100. The first guide roller 30 is located above the screw 33. The first guide roller 30 adjusts the guiding position of the cut strip film, so as to turn the strip film and let it enter the next processing unit.

[0034] The cutting unit 2 includes a cutting platform 2a, a cutting assembly 2b, and a guide roller 2c. The guide roller 2c is located on the inlet and outlet sides of the cutting platform 2a, respectively. The cutting assembly 2b is located above the cutting platform 2a. The cutting assembly 2b includes a second guide 25, a first connecting rod 21, a second connecting rod 22, and a cutter 23. The second guide 25 extends laterally along the cutting platform 2a. The third end of the first connecting rod 21 is slidably connected to the second guide 25 via a second slider 24, and the fourth end is rotatably connected to the second connecting rod 22 via a rotating shaft. The extension direction of the rotating shaft is consistent with the extension direction of the second guide 25. The cutter 23 is located at the end of the second connecting rod 22 opposite to the end connected to the fourth end. The lowest point of the guide roller 2c is located below the operating surface of the cutting platform 2a, thereby adjusting the tension of the recycled film and improving the cutting efficiency. Furthermore, the guide roller 2c is a lifting roller, which facilitates the feeding of the recycled film before the device starts operating, and then adjusting its tension to form a film-feeding channel after feeding. The cutting assembly 2b, through the combination of the second guide 25 and the second slider 24, is suitable for cutting recycled films of different widths or into strips of different widths. Furthermore, the cutting platform 2a is provided with a cutting through groove 20, which extends longitudinally along the platform and is arranged sequentially laterally. The cutter 23 corresponds to the cutting through groove 20 and extends along its depth. The combination of the first connecting rod 21, the second connecting rod 22, and the cutter 23 allows for adjustment of the cutting angle of the cutter 23 on the recycled film and the depth to which the cutter 23 extends into the cutting through groove 20. The cutter 23 is detachably connected to the second connecting rod 22, and the blade of the cutter 23 faces the unwinding roller 1 for easy cleaning or replacement.

[0035] like Figure 3 As shown, to facilitate the support and replacement of the recycled film roll and smoothly proceed to the next process, the fixed end of the unwinding roller 1 is rotatably connected to the base 100 via a support vertical rod (not labeled). The mating end extends radially along the support vertical rod. The base 100 is provided with a limiting groove 10 that mates with the mating end and a tightening screw 11. Specifically, the limiting groove 10 includes an inner groove 101 and an outer groove 102 arranged coaxially. The inner groove 101 and the outer groove 102 mate with each other. The opening of the outer groove 102 faces away from the cutting unit 2. A first limiting hole is provided on the top side of the outer groove 102. The inner groove 101 and the outer groove 102 are rotatably connected. The edge of the opening of the inner groove 101 is provided with a second limiting hole 12 that corresponds one-to-one with the first limiting hole. The tightening screw 11 passes through the first limiting hole and is threadedly connected to the second limiting hole 12. The thread is not shown in the figure and is omitted from the drawing.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An apparatus for recycling thin films, comprising: The crusher has a feed inlet and a mechanical winding unit; The feature is that a cutting mechanism is provided on the feeding side of the feeding port, and the base of the cutting mechanism is provided with an unwinding roller, a cutting unit and a feeding unit in sequence along the feeding direction; the feeding unit includes a feeding port surrounded by a pair of first baffles and second baffles, the feeding port is located above the feeding port, at least one of the pair of first baffles is close to or separate from the other along the feeding direction, and the pair of second baffles are close to or separate from each other along the extension direction of the first baffles.

2. The apparatus for film recycling according to claim 1, characterized in that, The feeding unit also includes a telescopic component, the telescopic end of which is fixedly connected to both sides of one of the first baffles. The base is provided with a first guide extending along the feeding direction, and one of the first baffles is in concave-convex cooperation with the first guide and moves reciprocally along it.

3. The apparatus for film recycling according to claim 1 or 2, characterized in that, The feeding unit further includes a screw, a first slider, and a driving component. The extension direction of the screw is consistent with the extension direction of the first baffle. The first end of the screw is connected to the driving component, and the second end is rotatably connected to the base. The first slider is connected to one end of a pair of second baffles and reciprocates along the axial direction of the screw. The other end of the second baffle is in concave-convex fit with the first baffle or the base and is slidably connected.

4. The apparatus for film recycling according to claim 3, characterized in that, The feeding unit further includes a first guide roller, the height of the axis of the first guide roller from the base is greater than the height of the operating surface of the cutting unit from the base, and the first guide roller is located above the screw.

5. The apparatus for film recycling according to claim 1 or 4, characterized in that, The cutting unit includes a cutting platform, a cutting assembly, and guide rollers. The guide rollers are respectively located on the infeed side and the discharge side of the cutting platform, and the cutting assembly is located above the cutting platform. The cutting assembly includes a second guide, a first connecting rod, a second connecting rod, and a cutter. The second guide extends laterally along the cutting platform. The third end of the first connecting rod is slidably connected to the second guide via a second slider, and the fourth end is rotatably connected to the second connecting rod via a rotating shaft. The extending direction of the rotating shaft is consistent with the extending direction of the second guide. The cutter is disposed at the end of the second connecting rod opposite to the end connected to the fourth end.

6. The apparatus for film recycling according to claim 5, characterized in that, The cutter is detachably connected to the second connecting rod, and the cutting edge of the cutter faces the unwinding roller.

7. The apparatus for film recycling according to claim 5 or 6, characterized in that, The cutting platform is provided with a cutting through groove, which extends longitudinally along the cutting platform and is arranged sequentially in the transverse direction. The cutter corresponds to the cutting through groove and extends along its groove depth.

8. The apparatus for film recycling according to claim 5, characterized in that, The guide roller is a lifting roller.

9. The apparatus for recycling thin films according to claim 1, characterized in that, The fixed end of the unwinding roller is rotatably connected to the base via a support vertical rod, and the mating end extends radially along the support vertical rod. The base is provided with a limiting groove and a tightening screw that mate with the mating end.

10. The apparatus for recycling thin films according to claim 9, characterized in that, The limiting groove includes an inner groove and an outer groove arranged coaxially. The inner groove and the outer groove are in a concave-convex fit. The opening of the outer groove faces away from the cutting unit. A first limiting hole is provided on the top side of the outer groove. The inner groove and the outer groove are rotatably connected. A second limiting hole is provided on the edge of the opening of the inner groove, which corresponds one-to-one with the first limiting hole. The tightening screw passes through the first limiting hole and is threadedly connected to the second limiting hole.

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