Plastic film winding roller

Abstract

The utility model discloses a plastic film winding roller, comprising a roller, wherein the two ends of the roller are respectively fixedly connected with a first rotating shaft and a second rotating shaft, two circular gears are respectively rotatably installed at the two ends of the inner wall of the roller, two first long toothed rods and two second long toothed rods are respectively symmetrically arranged at the two ends of the two circular gears, two pads are respectively fixedly installed between the two first long toothed rods and the two second long toothed rods, two clamping plates are respectively fixedly installed on the sides of the two pads close to each other, and two through holes are respectively opened on the outer surface of the roller at the two ends of the two pads. In the utility model, the end of the plastic film is fixed by the two clamping plates on the two pads to prevent creases from appearing after the plastic film is rolled up.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of plastic film processing, in particular to a plastic film winding roller. Background Art

[0002] Films made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins are used for packaging and as coating layers. Plastic packaging and plastic packaging products occupy an increasingly larger share in the market, especially composite plastic flexible packaging, which has been widely used in food, medicine, chemical and other fields, bringing great convenience to people's lives.

[0003] In the production and processing of plastic film, the plastic film after elongation and forming needs to be wound up by a winding roller. The existing winding method is to stick one end of the plastic film to the winding roller through tape. Since the plastic film itself is relatively thin, creases will be formed at the tape during the winding process. As the winding continues, creases will appear on each layer of the plastic film, affecting the quality of the product. Utility Model Content

[0004] The utility model aims to solve the problem that creases will appear at the adhesive tape sticking position of the existing plastic film after the plastic film is rolled up, and provides a plastic film rolling roller.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A plastic film winding roller comprises a roller, wherein the two ends of the roller are respectively fixedly connected with a first rotating shaft and a second rotating shaft, two circular gears are respectively rotatably installed at the two ends of the inner wall of the roller, two first long tooth rods and two second long tooth rods are respectively symmetrically provided at the two ends of the two circular gears, two pads are respectively fixedly installed between the two first long tooth rods and the two second long tooth rods, two clamping plates are respectively fixedly installed on the sides of the two pads close to each other, and two through holes are respectively provided on the outer surface of the roller at the two ends of the two pads.

[0007] As a further description of the above technical solution, one of the pads is fixedly mounted on one end of the two first long tooth rods, and the other pad is fixedly mounted on one end of the two second long tooth rods, and four springs are fixedly mounted between the two ends of the two pads on the side away from each other and the inner wall of the roller.

[0008] As a further description of the above technical solution, four limit rods are fixedly installed on the inner walls of both sides of the roller at the ends where the two first long tooth rods and the two second long tooth rods are far away from each other.

[0009] As a further description of the above technical solution, four clamping blocks are fixedly connected to the sides of the two pads that are away from each other, and four elongated holes are respectively opened on the rollers, and the four clamping blocks correspond to and match the four elongated holes.

[0010] As a further description of the above technical solution, a plurality of tooth grooves are respectively formed on the sides of the four clamping blocks that are away from each other.

[0011] As a further description of the above technical solution, a connecting shaft is fixedly connected to one side of one of the circular gears, a sliding rod is slidably installed on the outer surface of the connecting shaft and the inner wall of the first rotating shaft, and a knob is fixedly connected to one end of the sliding rod.

[0012] As a further description of the above technical solution, a plurality of first card grooves are evenly fixedly installed on the outer surface of the connecting shaft, and a plurality of first card blocks are evenly fixedly installed on the inner wall of the sliding rod close to the connecting shaft, and the plurality of first card blocks are respectively slidably installed in the plurality of first card grooves.

[0013] As a further description of the above technical solution, a circular groove is opened in the first rotating shaft, and a plurality of fixing rods are evenly fixedly installed on the inner wall of the circular groove on the side close to the roller, and a plurality of second clamping blocks are evenly fixedly installed on the outer surface of the sliding rod on the side close to the roller, and the plurality of second clamping blocks are respectively slidably installed in the gaps between the plurality of fixing rods.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] In the utility model, a plurality of second clamping blocks on the slide rod are separated from the gaps between the plurality of fixed rods by pulling the knob, and the plurality of first clamping blocks on the slide rod are turned to push the plurality of first clamping grooves, thereby driving the connecting shaft to rotate. Through the cooperation of two circular gears, two first long toothed rods and two second long toothed rods, the two pads are moved away from each other, and then one end of the plastic film is passed through the gap between the two clamping plates through the two long holes. The knob is loosened, and under the action of four springs, the two clamping blocks are moved closer to each other, so that one end of the plastic film is fixed, thereby preventing creases from occurring on the plastic film after it is rolled up. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure inside the roller of the utility model;

[0018] Figure 3 It is an exploded view of the structure of the connection between the slide rod and the connecting shaft of the utility model;

[0019] Figure 4It is a schematic diagram of the structure on the inner wall of the roller of the utility model;

[0020] Figure 5 It is a cross-sectional view of the internal structure of the first rotating shaft of the utility model.

[0021] Reference numerals: 10, roller; 101, through hole; 102, elongated hole; 103, limit rod; 11, first rotating shaft; 111, circular groove; 112, fixing rod; 12, sliding rod; 121, first clamping block; 122, second clamping block; 13, knob; 14, second rotating shaft;

[0022] 20. Pad; 21. Clamp; 22. Circular gear; 23. First long tooth rod; 24. Second long tooth rod; 25. Spring; 26. Connecting shaft; 261. First slot; 27. Clamp; 271. Tooth groove. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0024] Please refer to the attached Figure 1-Figure 5 As shown, the utility model provides a technical solution: a plastic film winding roller, comprising a roller 10, wherein the two ends of the roller 10 are respectively fixedly connected with a first rotating shaft 11 and a second rotating shaft 14, two circular gears 22 are rotatably installed at the two ends of the inner wall of the roller 10, two first long tooth rods 23 and two second long tooth rods 24 are symmetrically provided at the two ends of the two circular gears 22, two pads 20 are respectively fixedly installed between the two first long tooth rods 23 and the two second long tooth rods 24, two pads 20 are respectively fixedly installed on the sides of the two pads 20 close to each other, two clamping plates 21 are respectively fixedly installed, and two through holes 101 are respectively provided on the outer surface of the roller 10 at the two ends of the two pads 20, and one end of the plastic film is passed through the gap between the two clamping plates 21 through the two through holes 101, so as to fix one end of the plastic film and avoid creases during the winding process.

[0025] In this embodiment, one of the pads 20 is fixedly mounted on one end of the two first long tooth rods 23, and the other pad 20 is fixedly mounted on one end of the two second long tooth rods 24. Four springs 25 are fixedly mounted between the two ends of the two pads 20 that are away from each other and the inner wall of the roller 10. With the cooperation of the four springs 25 and the roller 10, one end of the plastic film can be fixed conveniently.

[0026] In this embodiment, four limiting rods 103 are fixedly installed on the inner walls of both sides of the roller 10 at the ends away from the two first long tooth rods 23 and the two second long tooth rods 24, so as to limit the two first long tooth rods 23 and the two second long tooth rods 24.

[0027] In this embodiment, four clamping blocks 27 are fixedly connected to the sides of the two pads 20 that are away from each other, and four elongated holes 102 are respectively opened on the roller 10. The four clamping blocks 27 correspond to and match the four elongated holes 102 respectively. By operating the two pads 20 to move away from each other, the four clamping blocks 27 are respectively extended from the four elongated holes 102, so as to facilitate the fixation of the paper tube mounted on the roller 10.

[0028] In this embodiment, a plurality of tooth grooves 271 are respectively formed on the sides of the four clamping blocks 27 that are away from each other to prevent the four clamping blocks 27 from sliding against the inner wall of the paper tube.

[0029] In this embodiment, a connecting shaft 26 is fixedly connected to one side of one of the circular gears 22 , a slide rod 12 is slidably mounted on the outer surface of the connecting shaft 26 and the inner wall of the first rotating shaft 11 , and a knob 13 is fixedly connected to one end of the slide rod 12 .

[0030] In this embodiment, a plurality of first slots 261 are evenly fixedly installed on the outer surface of the connecting shaft 26 , a plurality of first blocks 121 are evenly fixedly installed on the inner wall of the slide rod 12 close to the connecting shaft 26 , and the plurality of first blocks 121 are slidably installed in the plurality of first slots 261 .

[0031] In this embodiment, a circular groove 111 is opened in the first rotating shaft 11, and a plurality of fixing rods 112 are evenly fixedly installed on the inner wall of the circular groove 111 close to the roller 10. A plurality of second clamping blocks 122 are evenly fixedly installed on the outer surface of the sliding rod 12 close to the roller 10. The plurality of second clamping blocks 122 are respectively slidably installed in the gaps between the plurality of fixing rods 112.

[0032] The specific operation process of the utility model is as follows:

[0033] When the plastic film is rolled up, the second blocks 122 on the slide bar 12 are disengaged from the gaps between the fixed rods 112 by pulling the knob 13, and the first blocks 121 on the slide bar 12 are pushed into the first slots 261 by turning the knob 13, so as to drive the connecting shaft 26 to rotate, and the two round gears 22, the two first long toothed rods 23 and the two second long toothed rods 24 cooperate to make the two pads 20 move away from each other, and then one end of the plastic film passes through the gap between the two clamping plates 21 through the two long holes 102, and the knob 13 is released, and the four springs are engaged. Under the action of the force of 25, the two clamping plates 21 are brought close to each other to fix one end of the plastic film to prevent creases from appearing on the plastic film after rolling up; in addition, when it is necessary to roll up the paper roll, after pulling out the knob 13, the knob 13 is rotated to move the two pads 20 away from each other, so that the four clamping blocks 27 extend from the four elongated holes 102 respectively to fix the inner wall of the paper roll, and then the knob 13 is pushed to make the several second clamping blocks 122 on the slide rod 12 slide to the gap between the several fixing rods 112 to fix the four clamping blocks 27, so as to facilitate the use of the paper roll for rolling up.

[0034] The above description of the utility model in combination with the accompanying drawings is an exemplary description. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A plastic film winding roller, comprising a roller (10), characterized in that: The two ends of the roller (10) are respectively fixedly connected with a first rotating shaft (11) and a second rotating shaft (14); two circular gears (22) are respectively rotatably mounted on the two ends of the inner wall of the roller (10); two first long toothed rods (23) and two second long toothed rods (24) are respectively symmetrically arranged at the two ends of the two circular gears (22); two pads (20) are respectively fixedly mounted between the two first long toothed rods (23) and the two second long toothed rods (24); two clamping plates (21) are respectively fixedly mounted on the sides of the two pads (20) close to each other; and two through holes (101) are respectively opened on the outer surface of the roller (10) at the two ends of the two pads (20) and correspondingly.

2. A plastic film winding roller according to claim 1, characterized in that: One of the pads (20) is fixedly mounted on one end of two first long toothed rods (23), and the other pad (20) is fixedly mounted on one end of two second long toothed rods (24). Four springs (25) are respectively fixedly mounted between the two ends of the two pads (20) on a side away from each other and the inner wall of the roller (10).

3. The plastic film winding roller according to claim 1, characterized in that: Four limiting rods (103) are fixedly mounted on the inner walls of both sides of the roller (10) at the ends away from the two first long tooth rods (23) and the two second long tooth rods (24).

4. The plastic film winding roller according to claim 1, characterized in that: Four clamping blocks (27) are fixedly connected to the sides of the two pads (20) that are away from each other, and four elongated holes (102) are respectively opened on the roller (10), and the four clamping blocks (27) are respectively matched with the four elongated holes (102).

5. A plastic film winding roller according to claim 4, characterized in that: A plurality of tooth grooves (271) are respectively formed on one side of the four clamping blocks (27) that is away from each other.

6. The plastic film winding roller according to claim 1, characterized in that: A connecting shaft (26) is fixedly connected to one side of one of the circular gears (22); a sliding rod (12) is slidably mounted on the outer surface of the connecting shaft (26) and the inner wall of the first rotating shaft (11); and a knob (13) is fixedly connected to one end of the sliding rod (12).

7. A plastic film winding roller according to claim 6, characterized in that: A plurality of first card slots (261) are evenly and fixedly mounted on the outer surface of the connecting shaft (26), a plurality of first card blocks (121) are evenly and fixedly mounted on the inner wall of the sliding rod (12) close to the connecting shaft (26), and the plurality of first card blocks (121) are respectively slidably mounted in the plurality of first card slots (261).

8. The plastic film winding roller according to claim 6, characterized in that: A circular groove (111) is provided in the first rotating shaft (11), and a plurality of fixing rods (112) are evenly fixedly installed on the inner wall of the circular groove (111) on one side close to the roller (10), and a plurality of second clamping blocks (122) are evenly fixedly installed on the outer surface of the sliding rod (12) on one side close to the roller (10), and the plurality of second clamping blocks (122) are respectively slidably installed in the gaps between the plurality of fixing rods (112).

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