Plastic film tensioning and winding equipment

Abstract

The utility model discloses plastic film tensioning and winding equipment which comprises an operation table, four supporting legs are fixedly installed at the four corners of the lower end of the operation table respectively, a fixed plate and a movable plate are arranged at the two ends of the operation table respectively, and a winding roller is rotationally installed between the fixed plate and the movable plate. An L-shaped limiting rod is arranged at the lower end of the winding roller, a U-shaped sliding rod is slidably installed on the fixing plate, a distance sensor is fixedly installed at the position, at the lower end of the L-shaped limiting rod, of the U-shaped sliding rod, a fixing block is fixedly installed on the side, close to the movable plate, of the operation table, and a one-way lead screw is rotatably installed between the fixing plate and the fixing block; the one-way lead screw is sleeved with a push rod in a threaded mode, and one end of the push rod is arranged at one end of the winding roller in a sliding and sleeving mode. According to the plastic film winding device, the L-shaped limiting rod is matched with the distance sensor on the U-shaped sliding rod, so that when a plastic film is wound to a certain size, the plastic film is automatically separated from the winding roller, and the convenience of the device is improved.

Description

Technical Field

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

[0002] Plastic film refers to film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, which is used for packaging and as a coating layer.

[0003] When the existing plastic film tensioning and winding equipment is in use, after the plastic film is rolled up, the winding roller needs to be manually operated to stop rotating. Due to manual operation, the size of the rolled plastic film cannot be controlled, which easily leads to different sizes of the rolled plastic film, affecting the quality of the product. Utility Model Content

[0004] The utility model aims to solve the problem that the existing equipment cannot automatically separate the plastic film from the winding roller when the film is rolled to a certain size, resulting in inaccurate size of the rolled plastic film, and proposes a plastic film tensioning and winding device.

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

[0006] A plastic film tensioning and winding device comprises an operating table, four supporting legs are fixedly installed at the four corners of the lower end of the operating table, a fixed plate and a movable plate are respectively provided at both ends of the operating table, a winding roller is rotatably installed between the fixed plate and the movable plate, an L-shaped limit rod is provided at the lower end of the winding roller, a U-shaped sliding rod is slidably installed on the fixed plate, a distance sensor is fixedly installed on the lower end of the L-shaped limit rod of the U-shaped sliding rod, a fixed block is fixedly installed on the side of the operating table close to the movable plate, a one-way screw is rotatably installed between the fixed plate and the fixed block, a push rod is threadedly sleeved on the one-way screw, and one end of the push rod is slidably sleeved on one end of the winding roller.

[0007] As a further description of the above technical solution, a second motor is fixedly installed on one side of the fixed plate, the output end of the second motor rotates through the outer surface of the fixed plate and is fixedly connected to the one-way screw rod, and the lower end of the push rod is slidably connected to the upper surface of the operating table.

[0008] As a further description of the above technical solution, a convex groove is provided on the side of the fixed plate close to the winding roller, one end of the L-shaped limit rod is slidably installed in the convex groove, a first spring is fixedly installed between one end of the L-shaped limit rod and the lower side of the inner wall of the convex groove, and a sliding hole is provided on the side of the movable plate of the operating table close to the winding roller, and the other end of the L-shaped limit rod is slidably installed in the sliding hole.

[0009] As a further description of the above technical solution, a sliding groove is opened on the side of the fixed plate away from the convex groove, and the other end of the U-shaped sliding rod away from the distance sensor is slidably installed in the sliding groove, and a threaded rod is threadedly installed on the U-shaped sliding rod. The threaded rod passes through the outer surface of the U-shaped sliding rod, and the end of the threaded rod away from the fixed plate is fixedly connected with a knob.

[0010] As a further description of the above technical solution, an elongated hole is provided on the side of the operating table close to the sliding hole, and an accommodating groove is provided on the side of the elongated hole away from the sliding hole. The lower end of the movable plate is rotatably installed in the elongated hole, and two rotating blocks are rotatably installed on the side of the movable plate away from the winding roller and on the accommodating groove respectively, and a second spring is fixedly installed between the two rotating blocks.

[0011] As a further description of the above technical solution, a first motor is fixedly installed on the side of the fixed plate away from the winding roller, and the output end of the first motor rotates through the outer surface of the fixed plate, and the output end of the first motor is fixedly connected to one end of the winding roller.

[0012] As a further description of the above technical solution, two support blocks are fixedly installed on both ends of the operating table on one side of the fixed plate and the movable plate, respectively, and a bidirectional screw rod is rotatably installed between the two support blocks. The threads at both ends of the bidirectional screw rod are arranged in opposite directions, and two limit plates are threadedly sleeved on both ends of the bidirectional screw rod. One end of the bidirectional screw rod rotates and passes through the outer surface of one of the support blocks, and one end of the bidirectional screw rod is fixedly connected to a rocker.

[0013] As a further description of the above technical solution, four rotating wheels are rotatably installed on one side of the upper end of the limit plate, and the four rotating wheels are arranged in a rectangle on the limit plate. A baffle rod is fixedly installed between the lower ends of the two support blocks, and the lower end of the limit plate is slidably sleeved on the outer surface of the baffle rod.

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

[0015] 1. In the utility model, when the winding roller winds up the plastic film to the required size, the outer layer of the plastic film will push the L-shaped limit rod to slide downward in the convex groove. When the L-shaped limit rod slides downward and fits the surface of the distance sensor, the distance sensor transmits a signal to stop the first motor from rotating, and at the same time transmits a signal to rotate the second motor, so that the one-way screw rod rotates, and further the push rod pushes the plastic film on the winding roller to move on the winding roller, so that one end of the plastic film pushes the movable plate to rotate, thereby making the plastic film detach from the winding roller, which is convenient for controlling the size of the plastic film after winding.

[0016] 2. In the utility model, the two limit plates on the bidirectional screw and the eight rotating wheels on the two limit plates cooperate to limit the two ends of the rolled plastic film, thereby preventing the plastic film from shifting and deviating during rolling, resulting in irregularity of the rolled plastic film. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure on the fixed plate of the utility model;

[0019] Figure 3 It is a schematic diagram of the internal structure of the fixing plate of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure inside the long hole of the utility model.

[0021] Reference numerals: 10, operating table; 101, elongated hole; 102, receiving groove; 103, sliding hole; 11, supporting leg; 12, first spring; 13, L-shaped limiting rod;

[0022] 20. Winding roller; 21. Fixed plate; 211. Convex groove; 212. Slide groove; 22. Moving plate; 23. Rotating block; 24. Second spring; 25. Fixed block; 26. One-way screw rod; 27. Push rod; 28. First motor; 29. ​​Second motor;

[0023] 30. Support block; 31. Bidirectional screw rod; 32. Stop rod; 33. Limit plate; 34. Rotating wheel; 35. Rocker;

[0024] 40. U-shaped sliding rod; 41. distance sensor; 42. threaded rod; 43. knob. DETAILED DESCRIPTION

[0025] 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.

[0026] Please refer to the attached Figure 1-Figure 4As shown, the utility model provides a technical solution: a plastic film tensioning and winding device, comprising an operating table 10, four supporting legs 11 are fixedly installed at the four corners of the lower end of the operating table 10, and a fixed plate 21 and a movable plate 22 are respectively provided at both ends of the operating table 10. A winding roller 20 is rotatably installed between the fixed plate 21 and the movable plate 22, and an L-shaped limiting rod 13 is provided at the lower end of the winding roller 20. A U-shaped sliding rod 40 is slidably installed on the fixed plate 21, and the U-shaped sliding rod 40 is slidably installed on the L-shaped limiting rod 13. A distance sensor 41 is fixedly installed at the lower end, and a fixed block 25 is fixedly installed on the side of the operating table 10 close to the movable plate 22. A one-way screw 26 is rotatably installed between the fixed plate 21 and the fixed block 25. A push rod 27 is threadedly sleeved on the one-way screw 26, and one end of the push rod 27 is slidably sleeved on one end of the winding roller 20. Through the cooperation of the L-shaped limit rod 13 and the distance sensor 41 on the U-shaped slide rod 40, the plastic film is automatically detached from the winding roller 20 when the plastic film is rolled to a certain size.

[0027] In this embodiment, a second motor 29 is fixedly installed on one side of the fixed plate 21. The output end of the second motor 29 rotates through the outer surface of the fixed plate 21 and is fixedly connected to the one-way screw 26. The lower end of the push rod 27 is slidably connected to the upper surface of the operating table 10. By starting the second motor 29 to drive the one-way screw 26 to rotate, the push rod 27 can slide on the winding roller 20, pushing the plastic film on the winding roller 20 to slide on the winding roller 20.

[0028] In this embodiment, a convex groove 211 is provided on the side of the fixed plate 21 close to the winding roller 20, and one end of the L-shaped limit rod 13 is slidably installed in the convex groove 211. A first spring 12 is fixedly installed between one end of the L-shaped limit rod 13 and the lower side of the inner wall of the convex groove 211 to facilitate the resetting of the L-shaped limit rod 13. A sliding hole 103 is provided on the side of the movable plate 22 of the operating table 10 close to the winding roller 20, and the other end of the L-shaped limit rod 13 is slidably installed in the sliding hole 103.

[0029] In this embodiment, a sliding groove 212 is provided on one side of the fixed plate 21 away from the convex groove 211, and the other end of the U-shaped slide bar 40 away from the distance sensor 41 is slidably installed in the sliding groove 212, and a threaded rod 42 is threadedly installed on the U-shaped slide bar 40, and the threaded rod 42 passes through the outer surface of the U-shaped slide bar 40. A knob 43 is fixedly connected to the end of the threaded rod 42 away from the fixed plate 21, and the position of the U-shaped slide bar 40 on the fixed plate 21 can be adjusted by the knob 43 and the threaded rod 42.

[0030] In this embodiment, an elongated hole 101 is provided on the side of the operating table 10 close to the sliding hole 103, and a receiving groove 102 is provided on the side of the elongated hole 101 away from the sliding hole 103. The lower end of the movable plate 22 is rotatably installed in the elongated hole 101, and two rotating blocks 23 are rotatably installed on the side of the movable plate 22 away from the winding roller 20 and the receiving groove 102 respectively. A second spring 24 is fixedly installed between the two rotating blocks 23. When the push rod 27 pushes the plastic film on the winding roller 20 to move, one end of the plastic film pushes the movable plate 22 to rotate, thereby facilitating the removal of the plastic film from the winding roller 20.

[0031] In this embodiment, a first motor 28 is fixedly installed on one side of the fixed plate 21 away from the winding roller 20 , and the output end of the first motor 28 rotates through the outer surface of the fixed plate 21 , and the output end of the first motor 28 is fixedly connected to one end of the winding roller 20 .

[0032] Specifically, when the equipment is used to roll up the plastic film, the threaded rod 42 is adjusted by turning the knob 43 to adjust the U-shaped slide bar 40 to the specified position, and then the knob 43 is adjusted to make the threaded rod 42 close to the surface of the fixed plate 21 to fix the U-shaped slide bar 40, and then the first motor 28 is started to drive the winding roller 20 to rotate. When the size of the plastic film reaches the specified size, the outer layer of the plastic film will push the L-shaped limit rod 13 to slide down in the convex groove 211. When the L-shaped limit rod 13 slides down and fits the surface of the distance sensor 41, the distance sensor 41 transmits a signal to stop the first motor 28 and at the same time transmits a signal to rotate the second motor 29, so that the one-way screw rod 26 rotates, and further the push rod 27 pushes the plastic film on the winding roller 20 to move on the winding roller 20, so that one end of the plastic film pushes the movable plate 22 to rotate in the elongated hole 101, thereby making the plastic film separate from the winding roller 20, which is convenient for controlling the size of the plastic film after winding.

[0033] In this embodiment, two support blocks 30 are fixedly installed at both ends of the operating table 10 on one side of the fixed plate 21 and the movable plate 22, and a bidirectional screw rod 31 is rotatably installed between the two support blocks 30. The threads at both ends of the bidirectional screw rod 31 are set in opposite directions, and two limit plates 33 are threadedly sleeved on both ends of the bidirectional screw rod 31. One end of the bidirectional screw rod 31 rotates to penetrate the outer surface of one of the support blocks 30, and one end of the bidirectional screw rod 31 is fixedly connected to a rocker 35. The bidirectional screw rod 31 is driven to rotate by rotating the rocker 35, so that the two limit plates 33 move relative to each other on the bidirectional screw rod 31, thereby adjusting the distance between the two limit plates 33 according to the width of the plastic film, limiting the two ends of the rolled plastic film, and preventing the plastic film from shifting and deviating during rolling.

[0034] In this embodiment, four rotating wheels 34 are rotatably installed on one side of the upper end of the limit plate 33, and the four rotating wheels 34 are arranged in a rectangular shape on the limit plate 33. A blocking rod 32 is fixedly installed between the lower ends of the two support blocks 30. The lower end of the limit plate 33 is slidably sleeved on the outer surface of the blocking rod 32. The limit plate 33 is limited by the blocking rod 32 to prevent the limit plate 33 from shaking when the equipment is running.

[0035] 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 tensioning and winding device, comprising an operating table (10), It is characterized in that Four supporting legs (11) are fixedly mounted at the four corners of the lower end of the operating platform (10), and a fixed plate (21) and a movable plate (22) are respectively provided at both ends of the operating platform (10). A winding roller (20) is rotatably mounted between the fixed plate (21) and the movable plate (22), and an L-shaped limiting rod (13) is provided at the lower end of the winding roller (20). A U-shaped sliding rod (40) is slidably mounted on the fixed plate (21), and the U-shaped sliding rod (40) is slidably mounted on the fixed plate (21). A distance sensor (41) is fixedly installed at the lower end of the L-shaped limit rod (13) of the rod (40); a fixed block (25) is fixedly installed on the side of the operating table (10) close to the movable plate (22); a one-way screw rod (26) is rotatably installed between the fixed plate (21) and the fixed block (25); a push rod (27) is threadedly sleeved on the one-way screw rod (26); one end of the push rod (27) is slidably sleeved on one end of the winding roller (20).

2. A plastic film tensioning and winding device according to claim 1, It is characterized in that A second motor (29) is fixedly mounted on one side of the fixed plate (21); an output end of the second motor (29) rotates through the outer surface of the fixed plate (21) and is fixedly connected to the one-way screw rod (26); and a lower end of the push rod (27) is slidably connected to the upper surface of the operating table (10).

3. A plastic film tensioning and winding device according to claim 1, It is characterized in that A convex groove (211) is provided on one side of the fixed plate (21) close to the winding roller (20), one end of the L-shaped limiting rod (13) is slidably installed in the convex groove (211), a first spring (12) is fixedly installed between one end of the L-shaped limiting rod (13) and the lower side of the inner wall of the convex groove (211), and a sliding hole (103) is provided on one side of the movable plate (22) of the operating table (10) close to the winding roller (20), and the other end of the L-shaped limiting rod (13) is slidably installed in the sliding hole (103).

4. A plastic film tensioning and winding device according to claim 1, It is characterized in that A sliding groove (212) is provided on one side of the fixing plate (21) away from the convex groove (211); the other end of the U-shaped sliding rod (40) away from the distance sensor (41) is slidably installed in the sliding groove (212); a threaded rod (42) is threadedly installed on the U-shaped sliding rod (40); the threaded rod (42) passes through the outer surface of the U-shaped sliding rod (40); and one end of the threaded rod (42) away from the fixing plate (21) is fixedly connected to a knob (43).

5. A plastic film tensioning and winding device according to claim 1, It is characterized in that The operating table (10) is provided with an elongated hole (101) on one side close to the sliding hole (103), and a receiving groove (102) is provided on one side of the elongated hole (101) away from the sliding hole (103). The lower end of the movable plate (22) is rotatably mounted in the elongated hole (101), and two rotating blocks (23) are rotatably mounted on the side of the movable plate (22) away from the winding roller (20) and the receiving groove (102), respectively, and a second spring (24) is fixedly mounted between the two rotating blocks (23).

6. A plastic film tensioning and winding device according to claim 1, It is characterized in that A first motor (28) is fixedly mounted on one side of the fixed plate (21) away from the winding roller (20); the output end of the first motor (28) rotates and penetrates the outer surface of the fixed plate (21); the output end of the first motor (28) is fixedly connected to one end of the winding roller (20).

7. A plastic film tensioning and winding device according to claim 1, It is characterized in that Two support blocks (30) are fixedly installed at both ends of the operating table (10) on one side of the fixed plate (21) and the movable plate (22), respectively; a bidirectional screw rod (31) is rotatably installed between the two support blocks (30); threads at both ends of the bidirectional screw rod (31) are arranged in opposite directions; two limit plates (33) are respectively threadedly sleeved at both ends of the bidirectional screw rod (31); one end of the bidirectional screw rod (31) rotatably penetrates the outer surface of one of the support blocks (30), and one end of the bidirectional screw rod (31) is fixedly connected to a rocker (35).

8. A plastic film tensioning and winding device according to claim 7, It is characterized in that Four rotating wheels (34) are rotatably mounted on one side of the upper end of the limiting plate (33), and the four rotating wheels (34) are arranged in a rectangular shape on the limiting plate (33). A blocking rod (32) is fixedly mounted between the lower ends of the two supporting blocks (30), and the lower end of the limiting plate (33) is slidably sleeved on the outer surface of the blocking rod (32).

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