Tension adjusting device for packaging film processing

Abstract

The utility model discloses a tension adjusting device for packaging film processing, which belongs to the technical field of packaging film processing and comprises two groups of connecting plates, a first guide roller and a second guide roller are rotatably mounted on the sides, close to each other, of the two groups of connecting plates, a tensioning assembly is arranged on one side of the second guide roller, and the tensioning assembly comprises a threaded rod, a first guide roller, a second guide roller and a second guide roller. The outer side of the threaded rod is in threaded connection with a threaded plate, a fixing plate is fixedly installed on one side of the threaded plate, effective limiting conveying and winding can be conducted according to the width of the packaging film, and it can be ensured that the packaging film is stably conveyed along a set path all the time in the machining process. According to the packaging film tensioning device, the situation that the packaging film possibly deviates, twists and the like due to the fact that the packaging film is not limited is avoided, the tensioning degree of the packaging film is effectively adjusted, the packaging film can be kept flat in the follow-up machining process through the proper tensioning degree, undesirable phenomena such as wrinkles and corrugations are avoided, and the packaging film penetrating through the bottom of the tensioning roller can be buffered to a certain degree.

Description

Technical Field

[0001] This utility model relates to the field of packaging film processing technology, and in particular to a tension adjustment device for packaging film processing. Background Technology

[0002] Packaging film refers to films used for packaging goods, typically including polyethylene film, biaxially oriented polyester film (BOPET), BOPP film, and CPP film. When packaging goods, it adheres tightly to the product and is suitable for packaging goods of various shapes, resulting in aesthetically pleasing packaging and providing dust and moisture protection, thus enjoying widespread use. However, the tension of the packaging film during transport to processing equipment significantly impacts the molding process. Traditional processing equipment often struggles to precisely control tension, leading to large tension fluctuations during film transport. This can cause quality problems such as uneven thickness, stretching deformation, and wrinkles, severely affecting the film's performance and appearance, reducing product yield, and hindering effective film positioning. Furthermore, it is unsuitable for transporting films of varying widths; if the film width is too small, it may deviate during transport, affecting processing. Therefore, we propose a tension adjustment device for packaging film processing to address this issue. Utility Model Content

[0003] The purpose of this invention is to provide a tension adjustment device for packaging film processing to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A tension adjusting device for packaging film processing includes: two sets of connecting plates; a guide roller 1 and a guide roller 2 are rotatably mounted on one side of the two sets of connecting plates that are close to each other; a tensioning assembly is provided on one side of the guide roller 2; the tensioning assembly includes: a threaded rod; a threaded plate is threadedly connected to the outer side of the threaded rod; a fixing plate is fixedly mounted on one side of the threaded plate; a fixing frame is provided at the bottom of the fixing plate; a tensioning roller is rotatably mounted on one side of the fixing frame that is close to each other; two sets of limiting rings are slidably sleeved on the outer sides of both the guide roller and the tensioning roller; a fixing rod is fixedly mounted on the top of the two sets of limiting rings located on the same side; threaded blocks are fixedly mounted on the top of the four sets of fixing rods; a bidirectional lead screw is threadedly connected to the interior of the two sets of threaded blocks located on the same side; and a take-up roller is provided on one side of the tensioning assembly.

[0006] Preferably, multiple sets of telescopic cylinders are fixedly installed at the bottom of the fixing plate, and the bottom ends of the multiple sets of telescopic cylinders are respectively fixedly connected to the corresponding fixing frame. Springs are sleeved on the outer sides of the multiple sets of telescopic cylinders, and the two ends of the multiple sets of springs are respectively fixedly connected to the fixing plate and the fixing frame.

[0007] Preferably, the two sets of bidirectional lead screws are rotatably installed inside the two sets of connecting plates and fixing frames, and a motor is fixedly installed on one side of the connecting plate and fixing frame located on the front side. The output shafts of the two sets of motors are fixedly connected to the corresponding bidirectional lead screws.

[0008] Preferably, the threaded rod is rotatably installed inside the front connecting plate, and a second motor is fixedly installed on the top of the front connecting plate. The output shaft of the second motor is fixedly connected to the threaded rod. A base is fixedly installed at the bottom of the two sets of connecting plates, and two sets of brackets are fixedly installed on the top of the bases. A take-up roller is rotatably installed between the two sets of brackets. A third motor is fixedly installed on one side of the front bracket, and the output shaft of the third motor is fixedly connected to the take-up roller.

[0009] Preferably, two sets of limiting rods are slidably installed inside the two sets of threaded blocks on the same side, and the two sets of limiting rods on the same side are respectively fixedly installed inside the two sets of connecting plates and fixing frames.

[0010] Preferably, a slide rod is fixedly installed inside the connecting plate located on the rear side, and a slide plate is slidably installed on the outside of the slide rod, with one side of the slide plate being fixedly connected to the fixed plate.

[0011] This invention discloses a tension adjusting device for packaging film processing. It comprises a bidirectional lead screw, a motor, threaded blocks, a fixing rod, and limiting rings. By driving two sets of motors, the motors rotate the bidirectional lead screw, which in turn moves the two sets of threaded blocks on its outer sides. This causes the two sets of limiting rings on the same side to slide relative to each other on the outer sides of the guide roller and tension roller, respectively. This allows for effective limiting, conveying, and winding according to the width of the packaging film, ensuring that the film is consistently and stably conveyed along a predetermined path during processing. This avoids potential deviations and twisting of the packaging film due to lack of restraint, thus guaranteeing the flatness and uniformity of the film and improving processing quality.

[0012] In this invention, a tension adjusting device for packaging film processing is provided, comprising a second motor and a tensioning assembly. The second motor drives a threaded rod to rotate, which in turn moves an outer threaded plate up and down. This, in turn, moves a fixed plate on one side up and down, causing the tensioning roller at the bottom to press down on the packaging film. This effectively adjusts the tension of the packaging film. Appropriate tension ensures the packaging film remains flat during subsequent processing, preventing wrinkles, ripples, and other defects. It also ensures the packaging film will not break or be damaged due to stress concentration, and allows for more flexible production processes, quickly adapting to different process requirements and improving production efficiency. Springs and telescopic cylinders provide cushioning for the packaging film passing through the bottom of the tensioning roller, providing elastic buffering while maintaining appropriate tension and protecting the packaging film. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a tension adjustment device for packaging film processing proposed in this utility model;

[0014] Figure 2 This is a cross-sectional view of a tension adjustment device for packaging film processing proposed in this utility model;

[0015] Figure 3 This is a schematic diagram of the tensioning component structure proposed in this utility model.

[0016] In the diagram: 1. Connecting plate; 2. Guide roller 2; 3. Take-up roller; 4. Tensioning assembly; 401. Threaded rod; 402. Threaded plate; 403. Fixing plate; 404. Telescopic cylinder; 405. Spring; 406. Fixing frame; 407. Tensioning roller; 408. Slide plate; 409. Slide rod; 5. Guide roller 1; 6. Threaded block; 7. Fixing rod; 8. Limiting ring; 9. Limiting rod; 10. Bidirectional lead screw; 11. Motor 1; 12. Motor 2; 13. Motor 3. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figure 1-3A tension adjusting device for packaging film processing includes: two sets of connecting plates 1, with a guide roller 5 and a guide roller 2 rotatably mounted on one side of the two sets of connecting plates 1 that are close to each other, and a tensioning assembly 4 provided on one side of the guide roller 2. The tensioning assembly 4 includes: a threaded rod 401, a threaded plate 402 threadedly connected to the outer side of the threaded rod 401, a fixing plate 403 fixedly mounted on one side of the threaded plate 402, a fixing frame 406 provided at the bottom of the fixing plate 403, and a tensioning roller 407 rotatably mounted on one side of the fixing frame 406 that is close to each other. Two sets of limiting rings 8 are slidably sleeved on the outer side of both the guide roller and the tensioning roller 407. A fixing rod 7 is fixedly mounted on the top of the two sets of limiting rings 8 located on the same side. Threaded blocks 6 are fixedly mounted on the top of the four sets of fixing rods 7. A bidirectional screw 10 is threadedly connected inside the two sets of threaded blocks 6 located on the same side. A winding roller 3 is provided on one side of the tensioning assembly 4.

[0019] In this embodiment, multiple sets of telescopic cylinders 404 are fixedly installed at the bottom of the fixed plate 403. The bottom ends of the multiple sets of telescopic cylinders 404 are respectively fixedly connected to the corresponding fixed frame 406. Springs 405 are sleeved on the outer side of each set of telescopic cylinders 404. The two ends of the multiple sets of springs 405 are respectively fixedly connected to the fixed plate 403 and the fixed frame 406, which facilitates further cushioning of the packaging film. Two sets of bidirectional lead screws 10 are respectively rotatably installed inside the two sets of connecting plates 1 and fixed frames 406. Motors 11 are fixedly installed on one side of the connecting plate 1 and the fixed frame 406 located on the front side. The output shafts of the two sets of motors 11 are respectively fixedly connected to the corresponding bidirectional lead screws 10, which facilitates the rotation of the bidirectional lead screws 10 and facilitates the limiting ring 8 to limit the packaging film of different widths.

[0020] In this embodiment, the threaded rod 401 is rotatably installed inside the front connecting plate 1. A second motor 12 is fixedly installed on the top of the front connecting plate 1. The output shaft of the second motor 12 is fixedly connected to the threaded rod 401. A base is fixedly installed at the bottom of the two sets of connecting plates 1. Two sets of brackets are fixedly installed on the top of the bases. A winding roller 3 is rotatably installed between the two sets of brackets. A third motor 13 is fixedly installed on one side of the front bracket. The output shaft of the third motor 13 is fixedly connected to the winding roller 3 to facilitate the rotation of the winding roller 3 and to facilitate the winding of the packaging film. Two sets of limiting rods 9 are slidably installed inside the two sets of threaded blocks 6 on the same side. The two sets of limiting rods 9 on the same side are respectively fixedly installed inside the two sets of connecting plates 1 and the fixing frame 406 to prevent the limiting ring 8 from rotating when it moves. A slide rod 409 is fixedly installed inside the rear connecting plate 1. A slide plate 408 is slidably installed on the outside of the slide rod 409. One side of the slide plate 408 is fixedly connected to the fixing plate 403 to prevent the fixing plate 403 from rotating when it moves.

[0021] In this embodiment, during use, the operator sequentially passes the packaging film through the bottom of guide roller 5, the top of guide roller 2, the bottom of tension roller 407, and the outside of take-up roller 3. Two sets of motors 11 are driven, causing the bidirectional lead screw 10 to rotate. This causes the bidirectional lead screw 10 to move the two sets of threaded blocks 6 on the outer side, resulting in the two sets of limiting rings 8 on the same side sliding relative to each other on the outer sides of guide roller 5 and tension roller 407. This allows for effective limiting, conveying, and winding based on the width of the packaging film. The second motor 12 is then driven... This causes motor 12 to drive the threaded rod 401 to rotate, which in turn causes the threaded rod 401 to move the outer threaded plate 402 up and down. The threaded plate 402 then moves the fixed plate 403 on one side up and down, causing the tension roller 407 at its bottom to press down on the packaging film. This effectively adjusts the tension of the packaging film. When the tension roller 407 presses down, the spring 405 and the telescopic cylinder 404 provide a certain buffer to the packaging film passing through the bottom of the tension roller 407. This ensures that the packaging film is elastically buffered under appropriate tension, thus protecting the packaging film.

[0022] The foregoing has provided a detailed description of a tension adjusting device for packaging film processing according to this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A tension adjusting device for packaging film processing, characterized in that, Includes: two sets of connecting plates (1), with guide roller 1 (5) and guide roller 2 (2) rotatably mounted on one side of the two sets of connecting plates (1) that are close to each other, and a tensioning assembly (4) provided on one side of the guide roller 2 (2), the tensioning assembly (4) including: a threaded rod (401), a threaded plate (402) threadedly connected to the outer side of the threaded rod (401), a fixing plate (403) fixedly mounted on one side of the threaded plate (402), and a fixing bracket (406) provided at the bottom of the fixing plate (403). Tensioning rollers (407) are rotatably mounted on the side of the fixed frame (406) that are close to each other. Two sets of limiting rings (8) are slidably sleeved on the outer side of both the guide roller and the tensioning roller (407). Fixed rods (7) are fixedly mounted on the top of the two sets of limiting rings (8) on the same side. Threaded blocks (6) are fixedly mounted on the top of the four sets of fixed rods (7). Two sets of threaded blocks (6) on the same side are threadedly connected to bidirectional lead screws (10). A take-up roller (3) is provided on one side of the tensioning assembly (4).

2. The tension adjusting device for packaging film processing according to claim 1, characterized in that, Multiple sets of telescopic cylinders (404) are fixedly installed at the bottom of the fixed plate (403). The bottom ends of the multiple sets of telescopic cylinders (404) are respectively fixedly connected to the corresponding fixed frame (406). Springs (405) are sleeved on the outer side of the multiple sets of telescopic cylinders (404). The two ends of the multiple sets of springs (405) are respectively fixedly connected to the fixed plate (403) and the fixed frame (406).

3. The tension adjusting device for packaging film processing according to claim 1, characterized in that, The two sets of bidirectional lead screws (10) are rotatably installed inside the two sets of connecting plates (1) and fixing frames (406). Motors (11) are fixedly installed on one side of the connecting plates (1) and fixing frames (406) located on the front side. The output shafts of the two sets of motors (11) are fixedly connected to the corresponding bidirectional lead screws (10).

4. The tension adjusting device for packaging film processing according to claim 1, characterized in that, The threaded rod (401) is rotatably installed inside the front connecting plate (1). A second motor (12) is fixedly installed on the top of the front connecting plate (1). The output shaft of the second motor (12) is fixedly connected to the threaded rod (401). A base is fixedly installed at the bottom of the two sets of connecting plates (1). Two sets of brackets are fixedly installed on the top of the base. A take-up roller (3) is rotatably installed between the two sets of brackets. A third motor (13) is fixedly installed on one side of the front bracket. The output shaft of the third motor (13) is fixedly connected to the take-up roller (3).

5. The tension adjusting device for packaging film processing according to claim 1, characterized in that, Two sets of limiting rods (9) are slidably installed inside the two sets of threaded blocks (6) on the same side. The two sets of limiting rods (9) on the same side are respectively fixedly installed inside the two sets of connecting plates (1) and fixing brackets (406).

6. The tension adjusting device for packaging film processing according to claim 1, characterized in that, A slide rod (409) is fixedly installed inside the connecting plate (1) located on the rear side, and a slide plate (408) is slidably installed on the outside of the slide rod (409). One side of the slide plate (408) is fixedly connected to the fixing plate (403).

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