Pressing device for production of wrapping film

Abstract

The utility model discloses a hold-down device for production of a wrapping film, which comprises a support, a support column comprises a support column and a base, the top end of the support column is connected with a disc, the side surface of the disc is fixedly provided with a connector, and limiting compression rollers are circumferentially arrayed between the two discs. The limiting compression rollers comprise the first compression roller, the second compression roller and the third compression roller, the three compression rollers are arranged in a triangular shape, the surfaces of the limiting compression rollers are sleeved with movable sleeve shells, a storage box is fixed to the top face of the base through bolts, the compression rollers are arranged on the disc at equal intervals in a circumferential array mode, and the number of the compression rollers is three. Tension adjustment and pressing treatment during winding of the winding film are achieved, when the disc rotates, the height of the pressing roller changes accordingly, so that the pressure on the winding film is changed, meanwhile, in the height adjustment process of the pressing roller, pressure is applied to the winding film all the time, it is guaranteed that the surface of the winding film is smooth and free of wrinkles, and the surface quality of a product is further improved.

Description

Technical Field

[0001] This utility model relates to the field of stretch film production, specifically a pressing device for stretch film production. Background Technology

[0002] In the pressing device used in the production of stretch film, the main function of the pressing device is to ensure that the stretch film remains flat, aligned and stable during the production process, and to prevent wrinkles, deviations or accumulation. The pressing device flattens the stretch film by applying a certain pressure, eliminating wrinkles that may occur during the production process and ensuring that the surface of the stretch film is smooth.

[0003] In the prior art, publication number "CN210759354U" discloses a pressing device for stretch film production. This pressing device can press and fix the stretch film, preventing its displacement and effectively solving the problems mentioned in the background art. It includes a base, which is generally flat and rectangular. Vertical plates are fixed to the upper surfaces of the left and right sides of the base. Rectangular notches are embedded downwards on the upper surfaces of the plates, and sliding plates are installed within these notches. Vertical strip sliders are provided on the front and rear sides of the sliding plates. Strip grooves that mate with the strip sliders are embedded on the front and rear sides of the rectangular notches. Longitudinal cylindrical pressure rods are fixed to the top of the sliding plates. Clamping components that mate with the ends of the pressure rods are provided on the upper surfaces of the plates on the front and rear sides of the rectangular notches. It is simple to operate, convenient to use, and suitable for various applications.

[0004] However, existing technologies still have significant shortcomings. Traditional pressing devices are usually fixed in size, making it difficult to adapt to wrapping films of different thicknesses. Furthermore, when adjusting the device, it is usually necessary to manually adjust the height or pressure of the pressure roller, which is cumbersome and time-consuming. It cannot achieve automated adjustment and relies on manual operation, which increases the difficulty of operation and the probability of errors. Utility Model Content

[0005] The purpose of this invention is to provide a pressing device for producing stretch film, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressing device for stretch film production, comprising a bracket, the bracket including a support column and a base, a disc connected to the top of the support column, a connector fixed to the side of the disc, a circumferential array of limiting pressure rollers between two discs, the limiting pressure rollers including a first pressure roller, a second pressure roller and a third pressure roller, and the three pressure rollers are arranged in a triangular shape, a movable sleeve is fitted onto the surface of the limiting pressure roller, and a storage box is bolted to the top surface of the base.

[0007] Preferably, the bottom surface of the support column is perpendicular to the top surface of the base, and the connector on the side of the disc is connected to the bearing at the top interface of the support column.

[0008] Preferably, both the disc and the limiting pressure roller have flow cavities inside, and the flow cavity inside the limiting pressure roller is connected to the flow cavity inside the disc.

[0009] Preferably, the top interface of the storage box is flanged with a connecting pipe, and the connecting pipe is a tee pipe, with the water outlet end of the connecting pipe fitted into the interface on the side of the connector.

[0010] Preferably, a drive motor is fixed on the top surface of the base, and sprockets are respectively installed on the rotating end of the drive motor and the surface of the connector.

[0011] Preferably, the rotating end of the drive motor and the connecting head are aligned with each other, and a chain is fitted onto the surface of the sprocket.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The system employs three sets of pressure rollers arranged in an equidistant circular array on a disc. This allows for tension adjustment and clamping during the winding of the stretch film. As the disc rotates, the height of the pressure rollers changes, altering the pressure applied to the stretch film. Increasing the roller height increases the pressure and tension, while decreasing the height decreases the pressure and tension. Throughout the height adjustment process, the rollers maintain pressure on the stretch film, ensuring a smooth, wrinkle-free surface and further improving the product's surface quality. This simple rotation of the mechanical structure allows for quick and convenient adjustment, enabling flexible control of the stretch film tension and clamping force to meet diverse production needs. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a schematic diagram of the overall design of this utility model;

[0016] Figure 3 This is a side view of the present invention;

[0017] Figure 4 This is a front view of the present invention;

[0018] Figure 5 This is a cross-sectional schematic diagram of the present invention;

[0019] Figure 6 This is a schematic diagram of the film compression of this utility model.

[0020] In the diagram: 1. Bracket; 11. Support column; 12. Base; 2. Limiting pressure roller; 21. First pressure roller; 22. Second pressure roller; 23. Third pressure roller; 3. Disc; 31. Connector; 4. Movable sleeve; 5. Flow chamber; 6. Sprocket; 7. Chain; 8. Drive motor; 9. Connecting pipe; 10. Storage box. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-6 This utility model provides a technical solution:

[0023] Example 1: A pressing device for stretch film production: including a bracket 1, the bracket 1 including a support column 11 and a base 12. The pressing device ensures that the stretch film remains flat, aligned and stable during the production process, preventing wrinkles, displacement or accumulation. The pressing structure is located on the bracket 1. The bracket 1 includes a support column 11 and a base 12. The support column 11 is used to fix the disc 3. The pressing structure is used to fix the bracket 1 to the equipment. The bracket 1 is made of a high-rigidity material such as steel to ensure its stability and durability. The bracket 1 can be installed at the usage position on the stretch film production line.

[0024] A disc 3 is connected to the top of the support column 11. A connector 31 is fixed to the side of the disc 3. The bottom surface of the support column 11 is perpendicular to the top surface of the base 12. The connector 31 on the side of the disc 3 is connected to the bearing at the interface at the top of the support column 11. A limiting pressure roller 2 is arranged in a circumferential array between the two discs 3. The limiting pressure roller 2 includes a first pressure roller 21, a second pressure roller 22, and a third pressure roller 23. The three pressure rollers are arranged in a triangular shape. A movable sleeve 4 is fitted onto the surface of the limiting pressure roller 2. The limiting pressure roller 2 is a pressing device. The main structure includes a limiting pressure roller 2 comprising a first pressure roller 21, a second pressure roller 22, and a third pressure roller 23. The three pressure rollers are arranged in a triangular pattern. The limiting pressure roller 2 is located between and connected to two discs 3. The movable sleeve 4 can rotate on the surface of the pressure rollers. When pressing the stretch film, the film must first pass under the first pressure roller 21, then upwards around the top of the second pressure roller 22, then downwards around the bottom of the third pressure roller 23, and finally be wound up from the back of the device. The discs 3 serve as the mounting base for the pressure rollers. High-rigidity materials such as steel or aluminum alloy are commonly used to ensure stability and durability. The diameter and thickness of the disc 3 are designed according to the number of pressure rollers and the width of the wrapping film. The disc 3 can rotate at the top of the support column 11 according to the pressing requirements. When the disc 3 rotates, the height of the pressure rollers changes accordingly, thereby changing the pressure on the wrapping film. When the height of the pressure rollers increases, the pressure on the wrapping film increases, and the tension increases. Similarly, when the height of the pressure rollers decreases, the pressure on the wrapping film decreases, and the tension decreases. At the same time, the pressure rollers always apply pressure to the wrapping film during the height adjustment process to ensure its flatness and alignment, thus completing the pressing process. Through the simple rotation of the mechanical structure, flexible adjustment of the tension and pressing force of the wrapping film is achieved to adapt to different production needs. While adjusting the height, the pressure rollers always apply uniform pressure to the wrapping film to ensure its surface is flat and wrinkle-free, further improving the surface quality of the product. In addition, the structure is simple and easy to operate. The height of the pressure rollers can be adjusted by rotating the disc 3, reducing manual intervention and improving production efficiency.

[0025] Example 2:

[0026] Based on Embodiment 1, a drive motor 8 is fixed on the top surface of the base 12. A sprocket 6 is installed on the rotating end of the drive motor 8 and the surface of the connector 31, respectively. The rotating end of the drive motor 8 and the connector 31 are flush with each other. A chain 7 is sleeved on the surface of the sprocket 6. To further explain, the connector 31 on the side of the disc 3 is located at the connection port of the support column 11 and is connected by a bearing to ensure that the disc 3 can rotate on the support column 11, thereby adjusting the position of the pressure roller. The drive motor 8 provides power for the rotation of the disc 3. The chain 7 connects the rotating end of the drive motor 8 and the sprocket 6 on the connector 31. When the drive motor 8 is working, the connector 31 can rotate together with the disc 3 under the transmission action of the chain 7 and the sprocket 6.

[0027] The storage box 10 is bolted to the top surface of the base 12. Both the disc 3 and the limiting pressure roller 2 have flow chambers 5 inside, and the flow chamber 5 inside the limiting pressure roller 2 is interconnected with the flow chamber 5 inside the disc 3. It is worth noting that during the production of the stretch film, the coolant in the storage box 10 can be extracted and passed through the flow chambers 5 inside the three pressure rollers, and finally discharged into the storage box 10 on the other side. This effectively and rapidly cools the temperature of the stretch film during production, allowing the heat from the stretch film passing through the limiting pressure roller 2 to be absorbed by the limiting pressure roller 2, and then cooled by the coolant. The coolant is evenly distributed to each pressure roller through the disc 3, effectively carrying away the heat from the pressure rollers and the stretch film, preventing deformation or adhesion due to high temperature. The storage box 10... A connecting pipe 9 is connected to the flange at the top interface. The connecting pipe 9 is a three-way connector, and the outlet end of the connecting pipe 9 is fitted into the interface on the side of the connector 31. Further explanation: The storage tank 10 includes components such as an extraction pump. The connecting pipe 9 is connected to the outlet interface of the storage tank 10. The outlet end of the connecting pipe 9 is located inside the connector 31. The two are movably connected. The connector 31 is a rotary joint with a sealing ring and bearing inside. One end of the rotary joint is connected to the coolant inlet pipe, and the other end is connected to the disc 3 connector 31. The internal sealing ring ensures that the liquid does not leak and allows the fluid to pass through during rotation. The connecting pipe 9 can maintain the seal between the coolant inlet pipe and the disc 3 while the disc 3 rotates to prevent coolant leakage.

[0028] Working principle: The clamping structure is used to fix the bracket 1 to the equipment. The limiting pressure roller 2 includes a first pressure roller 21, a second pressure roller 22, and a third pressure roller 23. The overall layout of the three pressure rollers is triangular. The limiting pressure roller 2 is located between two discs 3 and is connected to the discs 3. The movable sleeve 4 can rotate on the surface of the pressure rollers. When clamping the stretch film, the stretch film needs to first pass under the first pressure roller 21, then go up over the top of the second pressure roller 22, then go down over the bottom of the third pressure roller 23, and finally be rolled up from the back of the device. The discs 3 can rotate at the top of the support column 11 according to the clamping requirements. When the discs 3 rotate, the height of the pressure rollers changes accordingly, thereby changing the pressure on the stretch film. Chain 7 connects the rotating end of drive motor 8 to sprocket 6 on connector 31. When drive motor 8 is working, under the transmission action of chain 7 and sprocket 6, connector 31 and disc 3 can rotate together. During the production of stretch film, coolant in storage box 10 can be extracted and passed through the flow chamber 5 inside the three pressure rollers, and finally discharged into storage box 10 on the other side. This can effectively and quickly cool down the temperature of stretch film during production. The heat of stretch film passing through limit pressure roller 2 is absorbed by limit pressure roller 2, and then cooled by coolant. Coolant is evenly distributed to each pressure roller through disc 3, effectively removing heat from pressure rollers and stretch film, and preventing deformation or adhesion caused by high temperature.

[0029] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pinch device for the production of a wrapping film, characterized in that: The system includes a bracket (1), which includes a support column (11) and a base (12). A disc (3) is connected to the top of the support column (11). A connector (31) is fixed to the side of the disc (3). A circumferential array of limiting pressure rollers (2) is formed between the two discs (3). The limiting pressure rollers (2) include a first pressure roller (21), a second pressure roller (22), and a third pressure roller (23). The three pressure rollers are arranged in a triangular shape. A movable sleeve (4) is fitted onto the surface of the limiting pressure rollers (2). A storage box (10) is bolted to the top surface of the base (12).

2. The compacting device for the production of wrapping film according to claim 1, characterized in that: The bottom surface of the support column (11) is perpendicular to the top surface of the base (12), and the connector (31) on the side of the disc (3) is connected to the bearing at the top interface of the support column (11).

3. The compacting device for the production of wrapping film according to claim 1, characterized in that: Both the disc (3) and the limiting pressure roller (2) have flow cavities (5) inside, and the flow cavities (5) inside the limiting pressure roller (2) are interconnected with the flow cavities (5) inside the disc (3).

4. The compacting device for the production of wrapping film according to claim 1, characterized in that: The top interface of the storage box (10) is connected to a flange with a connecting pipe (9), and the connecting pipe (9) is a three-way pipe, and the water outlet end of the connecting pipe (9) is fitted into the interface on the side of the connector (31).

5. The compacting device for the production of wrapping film according to claim 1, characterized in that: A drive motor (8) is fixed on the top surface of the base (12), and sprockets (6) are respectively installed on the rotating end of the drive motor (8) and the surface of the connector (31).

6. The compacting device for the production of wrapping film according to claim 5, characterized in that: The rotating end of the drive motor (8) and the connector (31) are aligned with each other, and the surface of the sprocket (6) is fitted with a chain (7).

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