Winding roller for EVA plastic film production

Abstract

The utility model discloses a wind-up roll for EVA plastic film production, which comprises a roll body and a mounting plate, the roll body is positioned on one side of the mounting plate, a pressing assembly is mounted outside the roll body, the pressing assembly comprises two rotating rings which are slidably sleeved on two sides of the outer wall of the circumference of the roll body, and the two rotating rings are connected with the mounting plate. Limiting frames are fixedly connected to the bottoms of the circumferential outer walls of the two rotating rings correspondingly, mounting blocks are slidably connected to the interiors of the two limiting frames correspondingly, first springs are fixedly connected between the two mounting blocks and the two limiting frames correspondingly, and rotating shafts are rotationally connected to the outer walls of the sides, close to each other, of the two mounting blocks correspondingly; according to the film winding device, the pressing assembly is arranged, after winding work is completed, the movable ends of films can be fixed, operation is more convenient, the films can be better attached in the winding process, and more films can be wound by the roller body.

Description

Technical Field

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

[0002] During the production process of EVA plastic film, the winding roller rotates through the central axis to wind the produced film onto the roller body.

[0003] After searching, the utility model with Chinese patent publication number CN215905527U discloses a winding device for EVA plastic film production, including two symmetrical fixed seats, a bottom plate tightly welded between the two fixed seats near the bottom, a winding roller fixing mechanism is provided between the two fixed seats, a winding roller is provided above the bottom plate, and a transmission mechanism is provided on one side of the winding roller.

[0004] When the above-mentioned winding device is in use, after winding is completed, one end of the film loses its restriction, and it is necessary to press the movable end first, and then use connecting parts such as tape to fix the movable end at the same time, otherwise it will become loose, thereby increasing the subsequent secondary tightening process. The operation is relatively cumbersome and there is room for improvement. Utility Model Content

[0005] The purpose of the utility model is to provide a winding roller for producing EVA plastic film, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a winding roller for the production of EVA plastic film, comprising a roller body and a mounting plate, the roller body being located on one side of the mounting plate, a clamping assembly being installed on the outside of the roller body, the clamping assembly comprising two rotating rings slidingly sleeved on both sides of the circumferential outer wall of the roller body, a limit frame being fixedly connected to the bottom of the circumferential outer wall of the two rotating rings, a mounting block being slidingly connected inside the two limit frames, a spring being fixedly connected between the two mounting blocks and the two limit frames, the outer walls of the two mounting blocks on one side close to each other being rotatably connected to a rotating shaft, the two rotating shafts being arranged in a rectangular shape, the two rotating shafts being slidingly sleeved with the same pressure roller, and the pressure roller being able to contact the outer wall of the roller body.

[0007] As a further preferred embodiment of the present technical solution, a spring 2 is fixedly connected to the inner walls on both sides of the pressure roller, and the two springs 2 are fixedly connected to the two rotating shafts respectively.

[0008] After the winding work is completed, the movable end of the film can be fixed, making the operation more convenient. It can also make the films closer together during the winding process, so that the roller can wind more film. Since a bearing is installed inside the rotating ring, the roller can only drive the inner ring of the rotating ring to rotate. There are multiple components at its bottom. Under the action of gravity, the rotating ring can always remain in a relatively stationary state. As the amount of plastic film increases, the diameter of the roller gradually increases, which will push the pressure roller to move downward. Once the spring is compressed and shortened, its reaction force will be applied to the wound film through the pressure roller, ensuring that the newly wound film is closer to the previous film. This reciprocating process is achieved. Since the rotating shaft is rotatably connected to the mounting block, it can rotate with the rotation of the roller, so the roller cannot drive the pressure roller to flip upward. After the winding is completed, the movable end of the film can also be pressed by the pressure roller and will not loosen. Because the rotating shaft is rectangular, it can drive the pressure roller to rotate and slide at the same time. Therefore, pushing the rotating ring drives the rotating shaft to move outward, and it can be quickly removed.

[0009] As a further preferred embodiment of the present technical solution, a sliding rod is fixedly connected to the inside of each of the two limit frames, and the two mounting blocks are slidably sleeved on the outside of the two sliding rods respectively.

[0010] As a further preferred embodiment of the present technical solution, two transmission assemblies are installed outside the roller body, and the two transmission assemblies are respectively located on both sides of the roller body.

[0011] As a further preferred embodiment of the present technical solution, the transmission assembly includes a coupling rotatably connected inside the mounting plate, a transmission pin is coaxially fixed to the outer wall of one side of the coupling, a receiving plate is fixedly connected to the outer wall of one side of the mounting plate, the inner diameter of the receiving plate is consistent with the diameter of the roller body, and a card slot adapted to the transmission pin is opened on the outer wall of one side of the roller body, and the mounting plate can be fixedly connected to an external device.

[0012] Place the roller body on the receiving plate and adjust the position of the transmission pin to keep it vertical. Therefore, when the roller body is placed, the slot at its end will be mounted on the outside of the transmission pin. The installation and disassembly process is simple enough. If you want the roller body to start winding, just drive the coupling to rotate through the external transmission device, and the coupling can drive the roller body to rotate through the transmission pin.

[0013] As a further preferred embodiment of the present technical solution, a positioning assembly is installed on the outside of the roller body, and the positioning assembly includes a receiving groove opened on the outer wall of the roller body. A positioning strip is slidably inserted into the receiving groove, and there is an interference fit between the positioning strip and the receiving groove.

[0014] As a further preferred embodiment of the present technical solution, a rubber sheet is provided on the outside of the plug-in end of the positioning strip.

[0015] The utility model provides a winding roller for producing EVA plastic film, which has the following beneficial effects:

[0016] (1) The present invention can fix the movable end of the film after the winding work is completed by setting a clamping component, making the operation more convenient and making the films closer together during the winding process, so that the roller can wind more films. Since a bearing is installed inside the rotating ring, the roller can only drive the inner ring of the rotating ring to rotate. There are multiple components at the bottom of the rotating ring. Under the action of gravity, the rotating ring can always remain in a relatively static state. As the amount of plastic film increases, the diameter of the roller gradually increases, which will push the pressure roller to move downward. Once the spring is compressed and shortened, its reaction force will be applied to the wound film through the pressure roller, ensuring that the newly wound film is closer to the previous film. In this way, the rotating shaft is rotatably connected to the mounting block, so that it can rotate with the rotation of the roller body. Therefore, the roller body cannot drive the pressure roller to flip upward. After the winding is completed, the movable end of the film can also be pressed by the pressure roller and will not be loose. Since the rotating shaft is rectangular, it can drive the pressure roller to rotate and slide at the same time. Therefore, the rotating ring is pushed to drive the rotating shaft to move outward, and it can be quickly removed.

[0017] (2) The utility model places the roller body in the receiving plate by setting a transmission component and adjusts the position of the transmission pin to keep it in a vertical state. Therefore, when the roller body is placed, the groove at its end will be sleeved on the outside of the transmission pin. The installation and disassembly process is simple enough. If the roller body wants to start winding, it only needs to drive the coupling to rotate through the external transmission device, and the coupling can drive the roller body to rotate through the transmission pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is an enlarged structural diagram of the transmission component of the present utility model;

[0020] Figure 3 This is a schematic diagram of the enlarged internal structure of the pressure roller of the present invention;

[0021] Figure 4 This is an enlarged structural diagram of the positioning component of the present utility model;

[0022] Figure 5 For the utility model Figure 1 A in the middle is an enlarged structural diagram;

[0023] In the figure: 1. Roller body; 2. Mounting plate; 3. Clamping assembly; 4. Positioning assembly; 5. Transmission assembly; 301. Rotating ring; 302. Limiting frame; 303. Mounting block; 304. Sliding rod; 305. Spring 1; 306. Rotating shaft; 307. Pressure roller; 308. Spring 2; 401. Receiving groove; 402. Positioning strip; 501. Coupling; 502. Transmission pin; 503. Attachment plate; 504. Slot. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0025] The utility model provides a technical solution: Figure 3 and Figure 5 As shown, in this embodiment, a winding roller for producing EVA plastic film includes a roller body 1 and a mounting plate 2, the roller body 1 is located on one side of the mounting plate 2, and a clamping assembly 3 is installed on the outside of the roller body 1, and the clamping assembly 3 includes two rotating rings 301 slidingly sleeved on both sides of the circumferential outer wall of the roller body 1, and the bottom of the circumferential outer wall of the two rotating rings 301 is fixedly connected to a limit frame 302, and the inside of the two limit frames 302 is slidingly connected to a mounting block 303, and a spring 305 is fixedly connected between the two mounting blocks 303 and the two limit frames 302, and the outer walls of the two mounting blocks 303 on one side close to each other are rotatably connected to a rotating shaft 306, and the two rotating shafts 306 are both rectangular. The two rotating shafts 306 are slidingly sleeved with the same pressure roller 307, and the pressure roller 307 can contact the outer wall of the roller body 1.

[0026] A second spring 308 is fixedly connected to the inner walls of both sides of the pressure roller 307 , and the two second springs 308 are fixedly connected to the two rotating shafts 306 respectively.

[0027] like Figure 5 As shown, a slide rod 304 is fixedly connected to the inside of each of the two limit frames 302, and two mounting blocks 303 are slidably mounted on the outside of the two slide rods 304, which can prevent the spring 1 305 from bending and the position of the mounting block 303 from changing.

[0028] Since the rotating ring 301 is equipped with a bearing, the roller body 1 can only drive the inner ring of the rotating ring 301 to rotate. There are multiple components at the bottom of the rotating ring 301. Under the action of gravity, the rotating ring 301 can always remain relatively stationary. As the amount of plastic film increases, the diameter of the roller body 1 gradually increases, which will push the pressure roller 307 to move downward. The spring 1 305 is compressed and shortened, and its reaction force is applied to the wound film through the pressure roller 307 to ensure that the newly wound film is more closely attached to the previous film. This reciprocating process is achieved. Since the rotating shaft 306 is rotatably connected to the mounting block 303, it can rotate with the rotation of the roller body 1. Therefore, the roller body 1 cannot drive the pressure roller 307 to flip upward. After the film is wound, the movable end can also be pressed by the pressure roller 307 and will not be loose. Because the rotating shaft 306 is rectangular, it can drive the pressure roller 307 to rotate and slide at the same time. Therefore, the rotating ring 301 is pushed to drive the rotating shaft 306 to move outward, and the film can be quickly removed.

[0029] like Figure 1 and Figure 2 As shown, two transmission assemblies 5 are installed on the outside of the roller body 1, and the two transmission assemblies 5 are respectively located on both sides of the roller body 1.

[0030] The transmission assembly 5 includes a coupling 501 that is rotatably connected to the inside of the mounting plate 2, a transmission pin 502 is coaxially fixed to the outer wall of one side of the coupling 501, and a receiving plate 503 is fixedly connected to the outer wall of one side of the mounting plate 2. The inner diameter of the receiving plate 503 is consistent with the diameter of the roller body 1, and a card slot 504 that is adapted to the transmission pin 502 is opened on the outer wall of one side of the roller body 1. The mounting plate 2 can be fixedly connected to external equipment.

[0031] Place the roller body 1 on the receiving plate 503 and adjust the position of the transmission pin 502 to keep it in a vertical state. Therefore, when the roller body 1 is placed, the slot 504 at its end will be sleeved on the outside of the transmission pin 502. The installation and disassembly process is simple enough. If you want the roller body 1 to start winding, just drive the coupling 501 to rotate through the external transmission device, and the coupling 501 can drive the roller body 1 to rotate through the transmission pin 502.

[0032] like Figure 1 and Figure 4 As shown, a positioning assembly 4 is installed on the outside of the roller body 1. The positioning assembly 4 includes a receiving groove 401 opened on the outer wall of the roller body 1. A positioning strip 402 is slidably inserted into the receiving groove 401. The positioning strip 402 and the receiving groove 401 are interference fit.

[0033] A rubber sheet is provided on the outside of the plug-in end of the positioning strip 402, which is beneficial to increase the friction between the positioning strip 402 and the film, and is beneficial to improve the positioning effect.

[0034] One end of the processed plastic film is wound around the outside of the roller body 1 so that the film covers the outside of the receiving groove 401. Then the positioning bar 402 is pressed toward the inside of the receiving groove 401, and the movable end of the film will be pressed tightly in the receiving groove 401, so that the winding work can proceed smoothly.

[0035] The utility model provides a winding roller for EVA plastic film production, and the specific working principle is as follows:

[0036] When the device is working, one end of the processed plastic film is wound around the outside of the roller body 1, and the film covers the outside of the receiving groove 401. Then, the positioning bar 402 is pressed toward the inside of the receiving groove 401, and the movable end of the film will be pressed tightly in the receiving groove 401, so that the winding work can proceed smoothly. Then, the roller body 1 is placed on the receiving plate 503, and the position of the transmission pin 502 is adjusted to keep it in a vertical state. Therefore, when the roller body 1 is placed, the card slot 504 at its end will be sleeved on the outside of the transmission pin 502. The installation and disassembly process is simple enough. If you want to start winding the roller body 1, just drive the coupling 501 to rotate through the external transmission device, and the coupling 501 can drive the roller body 1 to rotate through the transmission pin 502. Since the rotating ring 301 is equipped with a bearing, the roller body 1 can only drive the inner ring of the rotating ring 301 to rotate, and its bottom is The roller 307 is pressed against the roller 308 and the film is then moved back and forth, and the film is then moved back and forth, and the film is then moved back and forth, and the film is then moved back and forth, and the film is then moved back and forth, and the film is then moved back and forth, and the film is then moved back and forth, and the film is then moved back and forth, and the film is then moved back and forth, and the film is then moved back and forth, and the film is then moved back and forth, and the film is then moved back and forth, and the film is then moved back and forth, and the film is then moved back and forth, and the film is then moved back and forth, and the film is then moved back and forth, and the film is then moved back and forth, and the film is then moved back and forth, and the film is then moved back and forth, and the film is then moved back and forth, and the film is then moved back and forth, and the film is then moved back and forth, and the film is then moved back and forth, and the film is

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A winding roller for producing EVA plastic film, comprising a roller body (1) and a mounting plate (2), characterized in that: The roller body (1) is located on one side of the mounting plate (2). A pressing assembly (3) is installed on the outside of the roller body (1). The pressing assembly (3) comprises two rotating rings (301) slidably sleeved on both sides of the circumferential outer wall of the roller body (1). The bottom of the circumferential outer wall of the two rotating rings (301) is fixedly connected to a limit frame (302). The inside of the two limit frames (302) is slidably connected to a mounting block (303). A spring (305) is fixedly connected between the two mounting blocks (303) and the two limit frames (302). The outer walls of the two mounting blocks (303) on one side close to each other are rotatably connected to a rotating shaft (306). The two rotating shafts (306) are both rectangular. The two rotating shafts (306) are slidably sleeved with the same pressing roller (307). The pressing roller (307) can contact the outer wall of the roller body (1).

2. The winding roller for producing EVA plastic film according to claim 1, characterized in that: A second spring (308) is fixedly connected to the inner walls of both sides of the pressure roller (307), and the two second springs (308) are fixedly connected to the two rotating shafts (306) respectively.

3. The winding roller for producing EVA plastic film according to claim 1, characterized in that: A sliding rod (304) is fixedly connected to the inside of each of the two limit frames (302), and the two mounting blocks (303) are respectively slidably sleeved on the outside of the two sliding rods (304).

4. The winding roller for producing EVA plastic film according to claim 1, characterized in that: Two transmission assemblies (5) are installed outside the roller body (1), and the two transmission assemblies (5) are respectively located on both sides of the roller body (1).

5. The winding roller for producing EVA plastic film according to claim 4, characterized in that: The transmission assembly (5) comprises a coupling (501) rotatably connected to the interior of the mounting plate (2); a transmission pin (502) is coaxially fixed to the outer wall of one side of the coupling (501); a receiving plate (503) is fixedly connected to the outer wall of one side of the mounting plate (2); the inner diameter of the receiving plate (503) is consistent with the diameter of the roller body (1); and a slot (504) adapted to the transmission pin (502) is provided on the outer wall of one side of the roller body (1); and the mounting plate (2) can be fixedly connected to an external device.

6. The winding roller for producing EVA plastic film according to claim 1, characterized in that: A positioning assembly (4) is installed on the outside of the roller body (1), and the positioning assembly (4) includes a receiving groove (401) provided on the circumferential outer wall of the roller body (1). A positioning strip (402) is slidably inserted into the receiving groove (401), and an interference fit is formed between the positioning strip (402) and the receiving groove (401).

7. The winding roller for producing EVA plastic film according to claim 6, characterized in that: A rubber sheet is provided on the outside of the plug-in end of the positioning strip (402).

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