Automatic tension adjusting device for environment-friendly plastic film

Abstract

The utility model discloses an automatic tension adjusting device for an environment-friendly plastic film, and relates to the technical field of tension adjusting devices. The device comprises a base, wherein an adjusting mechanism and a self-adaptive mechanism are arranged on the base; the device comprises a base, rolling assemblies are arranged on the base, the top of the base is fixedly connected with two rolling assemblies, the adjusting mechanism comprises two rectangular frames fixedly connected to the top of the base, moving blocks are arranged in the two rectangular frames, and round holes are formed in the two moving blocks. According to the tension adjusting device, the adjusting mechanism is arranged, so that the problems that in the using process of an existing tension adjusting device, when the existing tension adjusting device is used for environment-friendly plastic films with different thicknesses, due to the fact that the elasticity of a spring is inconvenient to adjust, thick films are prone to being wound loosely and broken, the production efficiency and the product quality are seriously affected, and the production cost is lowered are solved. And the application of the device in diversified film production scenes is greatly restricted.

Description

Technical Field

[0001] This utility model belongs to the technical field of tension adjustment devices, and in particular relates to an environmentally friendly automatic tension adjustment device for plastic films. Background Technology

[0002] As environmental protection concepts gain wider acceptance, the demand for environmentally friendly plastic films continues to grow in the market. In the production process of environmentally friendly plastic films, the winding process is crucial. Due to the material characteristics of environmentally friendly plastic films, their tension is easily affected by various factors during the winding process, such as slight differences in the thickness of the film itself, fluctuations in the winding speed, and mechanical vibrations during equipment operation. If the tension is too high during winding, the film will be overstretched, resulting in thinning or cracking, which seriously affects product quality. If the tension is too low, the film will be loosely wound, affecting subsequent storage and transportation. Therefore, it is necessary to adjust the tension.

[0003] However, existing tension adjustment devices are prone to quality problems such as loose winding of thicker films and tearing of thinner films when used with environmentally friendly plastic films of varying thicknesses due to the inconvenience of adjusting the spring force. This seriously affects production efficiency and product quality, and greatly restricts the application of the device in diverse film production scenarios. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic tension adjustment device for environmentally friendly plastic films. By setting up an adjustment mechanism, it solves the problem that existing tension adjustment devices are prone to quality problems such as loose winding of thicker films and tearing of thinner films when dealing with environmentally friendly plastic films of different thicknesses. This is because the spring force adjustment is inconvenient and the existing tension adjustment devices are prone to quality problems such as loose winding of thicker films and tearing of thinner films. This seriously affects production efficiency and product quality and greatly restricts the application of the device in diverse film production scenarios.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is an environmentally friendly automatic tension adjustment device for plastic film, including a base, on which an adjustment mechanism and an adaptive mechanism are provided;

[0007] The base is provided with a winding assembly, and two support plates are fixedly connected to the top of the base. The adjustment mechanism includes two rectangular frames fixedly connected to the top of the base. Each of the two rectangular frames is provided with a movable block, and each of the two movable blocks has a circular hole. Threaded rods are fixedly connected to the inner walls of the two rectangular frames, and the two threaded rods pass through the two circular holes respectively. The adaptive mechanism includes a rotating shaft rotatably connected between the two movable blocks.

[0008] Furthermore, each of the two threaded rods has a handle threadedly connected to its outer wall, and each of the two handles has a rotating plate rotatably connected to its outer wall. Each of the two rotating plates has a rotating groove on its inner wall, and each of the two handles has a retaining ring fixedly connected to its outer wall. The two retaining rings are rotatably connected to the two rotating grooves respectively.

[0009] Furthermore, each of the two threaded rods is fitted with a spring, the top of each spring is fixedly connected to two rotating plates, and the bottom of each spring is fixedly connected to two moving blocks.

[0010] Furthermore, two guide rollers are rotatably connected between the two support plates, and a film body is disposed between the two guide rollers. The end of the film body is wound around the winding assembly. An adjusting roller is fixedly connected to the outer wall of the rotating shaft. The outer wall of the adjusting roller is in contact with the film body. Two sliding grooves are provided on both rectangular frames.

[0011] Furthermore, slide rods are fixedly connected to the front and rear sides of the two movable blocks, and several slide rods pass through several slide grooves on the side away from the two movable blocks, and limit blocks are fixedly connected to the side of the slide rods away from the two movable blocks.

[0012] This utility model has the following beneficial effects:

[0013] 1. By setting an adjustment mechanism, when it is necessary to adjust the spring constant, the handle can be turned. If the film body is thick, turn the handle counterclockwise to move it downward under the action of the threaded rod, thereby driving the rotating plate to move downward, shortening the spring and increasing the spring constant. If the film body is thin, turn the handle clockwise. Similarly, turn it to move the rotating groove upward, increasing the spring constant. This can prevent the thinner film from being damaged due to excessive tension, ensuring the integrity and quality of the thinner film during the winding process, reducing the scrap rate, and avoiding problems such as looseness and wrinkles in the thicker film. It provides sufficient tension for film winding, ensures the winding quality of thick film, and makes the wound film roll have a neat appearance and stable structure, which is convenient for subsequent storage and transportation.

[0014] 2. By setting an adaptive mechanism, when the film is wound thicker, the tension on the film is also greater. As the film passes through the bottom of the adjusting roller, the adjusting roller will move upward under this tension, and the moving block will also move upward. At this time, the spring with the adjusted elastic coefficient is compressed as the film body is wound, realizing automatic tension adjustment. This can prevent the film from being overstretched or broken due to excessive tension, ensuring that the thick film is wound tightly without damaging the material, reducing manual intervention, enabling continuous production, reducing equipment wear and tear, and effectively improving production efficiency.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0018] Figure 2 This is a partial structural schematic diagram of the present invention;

[0019] Figure 3 This is a partial cross-sectional view of the adjustment mechanism of this utility model;

[0020] Figure 4 This utility model Figure 3 A magnified structural diagram of A in the middle;

[0021] Figure 5 This utility model Figure 2 A magnified structural diagram of B in the diagram.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Base; 101. Winding assembly; 102. Support plate; 103. Guide roller; 104. Film body; 2. Adjustment mechanism; 211. Rectangular frame; 212. Moving block; 213. Circular hole; 214. Threaded rod; 215. Handle; 216. Rotating plate; 217. Rotating groove; 218. Snap ring; 219. Spring; 3. Adaptive mechanism; 311. Rotating shaft; 312. Adjusting roller; 313. Slide groove; 314. Slide rod; 315. Limiting block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5As shown, this utility model is an environmentally friendly plastic film tension automatic adjustment device, including a base 1, an adjustment mechanism 2 and an adaptive mechanism 3 on the base 1, a winding assembly 101 on the base 1, two support plates 102 fixedly connected to the top of the base 1, two guide rollers 103 rotatably connected between the two support plates 102, a film body 104 disposed between the two guide rollers 103, and the end of the film body 104 wound around the winding assembly 101. The adjustment mechanism 2 includes two rectangular frames 211 fixedly connected to the top of the base 1, each rectangular frame 211 having a movable block 212, each movable block 212 having a round hole 213, and each rectangular frame 211 having a threaded rod 214 fixedly connected to the inner wall of the two rectangular frames 211, the two threaded rods 214 respectively passing through the two round holes 213, and each threaded rod 214 having a handle 21 threadedly connected to the outer wall of the two threaded rods 214. 5. Rotating plates 216 are rotatably connected to the outer walls of both handles 215. Rotating grooves 217 are opened on the inner walls of both rotating plates 216. Snap rings 218 are fixedly connected to the outer walls of both handles 215. The two snap rings 218 are rotatably connected to the two rotating grooves 217 respectively. Springs 219 are sleeved on both threaded rods 214. The tops of the two springs 219 are fixedly connected to the two rotating plates 216 respectively, and the bottoms of the two springs 219 are fixedly connected to the two moving blocks 212 respectively. By setting the adjustment mechanism 2, the thinner film can be prevented from being damaged due to excessive tension, ensuring the integrity and quality of the thinner film during the winding process, reducing the scrap rate, and avoiding problems such as looseness and wrinkles in thicker films. Sufficient tension is provided for film winding to ensure the quality of thick film winding, making the wound film roll have a neat appearance and stable structure, facilitating subsequent storage and transportation.

[0026] The adaptive mechanism 3 includes a rotating shaft 311 rotatably connected between two moving blocks 212. An adjusting roller 312 is fixedly connected to the outer wall of the rotating shaft 311. The outer wall of the adjusting roller 312 is in contact with the film body 104. Two sliding grooves 313 are opened on each of the two rectangular frames 211. Sliding rods 314 are fixedly connected to the front and rear sides of the two moving blocks 212. Several sliding rods 314 pass through several sliding grooves 313 on the side away from the two moving blocks 212. Limiting blocks 315 are fixedly connected to the side of several sliding rods 314 away from the two moving blocks 212. By setting the adaptive mechanism 3, the film can be prevented from being overstretched or broken due to excessive tension, ensuring that the thick film is tightly wound without damaging the material, reducing manual intervention, realizing continuous production, reducing equipment wear, and effectively improving production efficiency.

[0027] A specific application of this embodiment is as follows: In use, first, according to the thickness of the film body 104 to be wound, turn the handle 215. If the film body 104 is thicker, turn the handle 215 counterclockwise, causing it to move downwards under the action of the threaded rod 214, thereby driving the rotating plate 216 downwards, shortening the spring 219, and thus increasing the elastic coefficient of the spring 219. If the film body 104 is thinner, turn the handle 215 clockwise. Similarly, this causes the rotating groove 217 to move upwards, increasing the elastic coefficient of the spring 219. After the section is completed, the winding assembly 101 can be started to wind up the film body 104. During winding, the guide roller 103 will guide it. As winding proceeds, the film on the winding roller will become thicker and thicker. When the film is wound thicker, the tension on the film is also greater. The film passes through the bottom of the adjusting roller 312. Under the action of this tension, the adjusting roller 312 will move upward, and the moving block 212 will also move upward. At this time, the spring 219 with the elastic coefficient adjusted is compressed as the film body 104 is wound up, realizing automatic tension adjustment.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An environmentally friendly automatic tension adjustment device for plastic film, characterized in that: Includes a base (1), on which an adjustment mechanism (2) and an adaptive mechanism (3) are provided; The base (1) is provided with a winding assembly (101), and two support plates (102) are fixedly connected to the top of the base (1). The adjustment mechanism (2) includes two rectangular frames (211) fixedly connected to the top of the base (1). Each of the two rectangular frames (211) is provided with a moving block (212). Each of the two moving blocks (212) is provided with a round hole (213). Each of the two rectangular frames (211) is fixedly connected with a threaded rod (214). The two threaded rods (214) pass through the two round holes (213) respectively. The adaptive mechanism (3) includes a rotating shaft (311) rotatably connected between the two moving blocks (212).

2. The environmentally friendly plastic film tension automatic adjustment device according to claim 1, characterized in that, Each of the two threaded rods (214) has a handle (215) threadedly connected to its outer wall, and each of the two handles (215) has a rotating plate (216) rotatably connected to its outer wall.

3. The environmentally friendly plastic film tension automatic adjustment device according to claim 2, characterized in that, The inner walls of the two rotating plates (216) are provided with rotating grooves (217), and the outer walls of the two handles (215) are fixedly connected with retaining rings (218), and the two retaining rings (218) are rotatably connected to the two rotating grooves (217) respectively.

4. The environmentally friendly plastic film tension automatic adjustment device according to claim 3, characterized in that, Springs (219) are fitted on both threaded rods (214). The tops of the two springs (219) are fixedly connected to two rotating plates (216) respectively, and the bottoms of the two springs (219) are fixedly connected to two moving blocks (212) respectively.

5. The environmentally friendly plastic film tension automatic adjustment device according to claim 4, characterized in that, Two guide rollers (103) are rotatably connected between the two support plates (102), and a film body (104) is disposed between the two guide rollers (103). The end of the film body (104) is wound around the winding assembly (101).

6. The environmentally friendly plastic film tension automatic adjustment device according to claim 5, characterized in that, An adjusting roller (312) is fixedly connected to the outer wall of the rotating shaft (311). The outer wall of the adjusting roller (312) is in contact with the film body (104). Two grooves (313) are opened on each of the two rectangular frames (211).

7. The environmentally friendly plastic film tension automatic adjustment device according to claim 6, characterized in that, Slide rods (314) are fixedly connected to the front and rear sides of the two movable blocks (212). Several slide rods (314) pass through several slide grooves (313) on the side away from the two movable blocks (212). Limiting blocks (315) are fixedly connected to the side of several slide rods (314) away from the two movable blocks (212).

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