A film roll device

Abstract

This utility model discloses a film roll device, including a base. A film roll frame that can be adjusted vertically is mounted on the top of the base. A pressure roller and an adjusting roller for monitoring film tension are mounted on the inner side of the film roll frame. A tension adjustment mechanism for adjusting the rotational friction of the adjusting roller to achieve uniform tension control is mounted on the outer side of the film roll frame. This utility model utilizes the gap between the pressure roller and the adjusting roller to transport the film. The pressure roller monitors the film tension, while the adjusting roller adjusts its friction through the tension adjustment mechanism. This allows the film to be transported under a fixed pressure on the pressure roller, achieving uniform tension control without frequent manual adjustments. Furthermore, the film roll frame can be raised and lowered on the base, effectively improving the practicality of the device during use.

Description

Technical Field

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

[0002] Film production roll winding refers to the process of winding continuously produced film material into rolls using a specialized film winding device during film manufacturing. This process typically occurs at the end of the film production line. After the film is continuously output from production equipment (such as extruders, coating machines, etc.), it is wound onto a reel by the film winding device to form a roll product that is easy to store, transport, and process later. During the film winding process, it is necessary to precisely control the tension and speed of the film to ensure that the film does not wrinkle, loosen, or break, while also ensuring the neatness and quality of the roll. The film winding device typically includes components such as a reel, drive mechanism, tension control system, and support. These components work together to achieve efficient film winding.

[0003] Currently, membrane roll devices are generally controlled manually, and tension is judged solely by visually observing the tightness of the film, often resulting in uneven tension. In addition, the height of the membrane roll device is fixed and cannot be adjusted, making it impractical.

[0004] Therefore, a membrane roll device is proposed to solve the above problems. Summary of the Invention

[0005] Technical problem to be solved by the utility model In view of the shortcomings of the prior art, the purpose of this utility model is to provide a film roll device, which aims to solve the problems that the existing film roll devices are generally controlled by manual adjustment, and the tension is judged only by visual observation of the film tension, which often results in uneven tension. At the same time, the height of the film roll device is fixed and cannot be adjusted, which makes it less practical.

[0006] Technical solution To achieve the above objectives, this utility model provides the following technical solution: A film roll device includes a base, on the top of which a film roll frame that can be adjusted vertically is mounted. A pressure roller and an adjusting roller for monitoring film tension are mounted on the inner side of the film roll frame. A tension adjustment mechanism for adjusting the rotational friction of the adjusting roller to achieve uniform tension control is mounted on the outer side of the film roll frame.

[0007] Furthermore, pulleys are installed at the four corners of the base to facilitate the movement of the device, and brake pedals for foot braking are installed on the pulleys.

[0008] Through the above technical solution, this device is easy and labor-saving to move, and its position can be fixed, effectively avoiding manual handling.

[0009] Furthermore, a forward and reverse motor is embedded in the top center of the base, and a lead screw driven by the forward and reverse motor is installed in the top center of the base. A threaded sleeve is threadedly connected to the outer ring surface of the lead screw, and the top of the threaded sleeve is fixedly connected to the bottom of the film roll holder.

[0010] With the above technical solution, when the lead screw is driven to rotate by the forward and reverse motors, the threaded sleeve can move up and down on the lead screw, thereby driving the film roll frame to adjust up and down.

[0011] Furthermore, telescopic rods are installed at the four corners of the top of the base, and screws for tightening and fixing the telescopic rods to extend the telescopic length are installed on the outer side of each telescopic rod. The tops of the four telescopic rods are respectively fixedly connected to the four corners of the bottom of the film roll frame.

[0012] Through the above technical solution, the four telescopic rods can ensure stable lifting and lowering adjustment on the film roll frame, while the screws are used to fix the height of the telescopic rods, so as to achieve stable support for the film roll frame after the height is adjusted.

[0013] Furthermore, a rotating shaft is installed at the higher end of the inner side of the film roll frame, and a film disc is fitted on the outer ring surface of the rotating shaft. The rotating shaft passes through to one end of the film disc and is tightened and fixed to the outer side of the film disc by bolts. A motor for driving the rotating shaft to rotate is installed at one end of the outer side of the film roll frame.

[0014] With the above technical solution, when the forward and reverse drive shafts rotate, the diaphragm disc will also rotate with the shafts. At the same time, the diaphragm disc can be disassembled by removing the bolts.

[0015] Furthermore, a guide roller is rotatably mounted between the two sides of the lower inner end of the film roll frame, and fixed plates are symmetrically mounted at both ends of the top of the film roll frame. The pressure roller is rotatably mounted between the inner sides of the two fixed plates, and the adjusting roller is rotatably mounted below the bottom of the pressure roller.

[0016] With the above technical solution, one end of the film passes around the bottom of the guide roller and the adjusting roller in sequence, extends into the gap between the pressure roller and the adjusting roller, and finally passes around the top of the pressure roller and is coiled on the film reel, thus realizing the film winding stroke of the device.

[0017] Furthermore, a pressure sensor is installed on the outer surface of the fixed plate, and the sensing end of the pressure sensor extends into the interior of the fixed plate and contacts the pressure roller.

[0018] Through the above technical solution, during the process of the film being transported from the pressure roller to the film reel for winding, the pressure of the film on the pressure roller can be monitored by the pressure sensor, thereby enabling the identification of the film tension pressure.

[0019] Furthermore, a cylinder is installed on the tension adjustment mechanism. The cylinder is mounted on the outer side of the film roll frame. A telescopic column is installed on the top of the cylinder's push rod, and an arc-shaped cover is installed on the top of the telescopic column. A spring is installed between the top of the arc-shaped cover and the top of the push rod. The spring is sleeved on the outer ring surface of the telescopic column. A brake pad is installed on the inner side of the arc-shaped cover. A brake disc is installed at one end of the adjusting roller. The brake disc is located above the top of the arc-shaped cover and its size matches the inner size of the brake pad. A control panel capable of controlling the motor, pressure sensor, and cylinder is installed on one end of the outer side of the base.

[0020] With the above technical solution, once the pressure value is set, the cylinder can drive the brake pads to move up and down, controlling the friction of the regulating tank, thereby enabling the membrane to maintain a stable tension for transport.

[0021] Beneficial effects Compared with the prior art, the beneficial effects of this utility model are: In this utility model, the film winding device achieves the following effects: 1. When the screw of this device rotates, it can drive the threaded sleeve to move upward, thereby adjusting the height of the film winding frame. The screw can also be used to fix the height, thus adapting to the film feeding height and effectively improving the practicality of the device during use; 2. When the film is conveyed in the gap between the pressure roller and the adjusting roller, the pressure sensor can monitor the tension pressure of the film on the pressure roller, and the cylinder can drive the brake pad to fit against the brake disc to control the friction force, thereby controlling the rotational friction force of the adjusting roller. This ensures that the film is always conveyed with a fixed tension on the pressure roller, achieving uniform control of the tension without frequent manual adjustment, thus improving the film winding efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a film roll device according to the present invention; Figure 2 This is a schematic diagram of the base and top component structure of a membrane roll device according to the present invention; Figure 3 This is a schematic diagram of the unfolded structure of a film roll holder and some components of a film roll device according to the present invention; Figure 4 This is an enlarged structural schematic diagram of the tension adjustment mechanism of a film roll device according to the present invention.

[0023] In the diagram: 1. Base; 11. Pulley; 12. Telescopic rod; 13. Screw; 14. Lead screw; 15. Threaded sleeve; 2. Film roll holder; 21. Control panel; 22. Rotary shaft; 23. Motor; 24. Film disc; 25. Guide roller; 26. Fixing plate; 27. Pressure roller; 28. Pressure sensor; 29. ​​Adjusting roller; 3. Tension adjustment mechanism; 31. Brake disc; 32. Cylinder; 33. Arc-shaped cover; 34. Brake pad; 35. Spring. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are provided. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0026] Example 1 Please see Figure 1-4 This embodiment provides a film roll device, including a base 1. A film roll frame 2 that can be adjusted up and down is installed on the top of the base 1. A pressure roller 27 and an adjusting roller 29 for monitoring the tension pressure of the film are installed on the inner side of the film roll frame 2. A tension adjustment mechanism 3 that can adjust the rotational friction of the adjusting roller 29 to achieve uniform tension control is installed on the outer side of the film roll frame 2. The film is conveyed by the gap between the pressure roller 27 and the adjusting roller 29. The pressure roller 27 monitors the tension pressure of the film, while the adjusting roller 29 adjusts its friction through the tension adjustment mechanism 3, so that the film is conveyed under a fixed pressure on the pressure roller 27, achieving uniform tension control without frequent manual adjustment. At the same time, the film roll frame 2 can be raised and lowered on the base 1, which can effectively improve the practicality of the device during use. Pulleys 11 are installed at the four corners of the base 1 to facilitate the movement of the device. Each pulley 11 is equipped with a brake pedal for foot braking.

[0027] Example 2 Please see Figure 1-2Based on Embodiment 1, this embodiment further specifies that a forward and reverse motor is embedded at the top center of the base 1, and a lead screw 14 driven by the forward and reverse motor is installed at the top center of the base 1. A threaded sleeve 15 is threadedly connected to the outer ring surface of the lead screw 14. The top of the threaded sleeve 15 is fixedly connected to the bottom of the film roll 2. Telescopic rods 12 are installed at the four corners of the top of the base 1. Screws 13 for tightening and fixing the telescopic length of the telescopic rods 12 are installed on the outer surface of each telescopic rod 12. The tops of the four telescopic rods 12 are fixedly connected to the four corners of the bottom of the film roll 2. When the forward and reverse motor drives the lead screw 14 to rotate, the threaded sleeve 15 moves up and down on the lead screw 14, thereby driving the film roll 2 to adjust its height. At the same time, the four telescopic rods 12 will also extend and retract accordingly. When the height is fixed, the screws 13 on the four telescopic rods 12 are tightened. The four telescopic rods 12 provide stable support for the film roll 2, thereby realizing the height adjustment of the film roll 2.

[0028] Example 3 Please see Figure 3 Based on Example 1, this embodiment further specifies that a pressure sensor 28 is installed on the outer side of the fixing plate 26. The sensing end of the pressure sensor 28 extends into the interior of the fixing plate 26 and contacts the pressure roller 27. During the process of the film being transported from the pressure roller 27 to the film tray 24 for winding, the pressure of the film on the pressure roller 27 can be monitored by the pressure sensor 28, thereby enabling the identification of the tension pressure of the film.

[0029] Example 4 Please see Figure 1 , Figure 3 and Figure 4This embodiment, based on embodiment 1, further specifies that a cylinder 32 is installed on the tension adjustment mechanism 3. The cylinder 32 is installed on the outer side of the film roll frame 2. A telescopic column is installed on the top of the push rod of the cylinder 32, and an arc-shaped cover 33 is installed on the top of the telescopic column. A spring 35 is installed between the top of the arc-shaped cover 33 and the top of the push rod. The spring 35 is sleeved on the outer ring surface of the telescopic column. A brake pad 34 is installed on the inner side of the arc-shaped cover 33. A brake disc 31 is installed at one end of the adjusting roller 29. The brake disc 31 is located above the top of the arc-shaped cover 33 and its size matches the inner size of the brake pad 34. A device capable of connecting is installed at one end of the outer side of the base 1. The control panel 21, which controls the motor 23, pressure sensor 28, and cylinder 32, allows the user to set the required pressure value. The pressure sensor 28 monitors the pressure of the film on the pressure roller 27. When the pressure sensor 28 detects that the pressure is less than the set value, the cylinder 32 pushes the brake pad 34 inside the arc-shaped cover 33 to generate a gradually increasing frictional force with the brake disc 31, so that the pressure value reaches the set value. When the pressure sensor 28 detects that the pressure value is too high, the cylinder 32 drives the brake pad 34 to move downward to reduce the frictional force between it and the brake disc 31, thereby achieving uniform control of the tension and improving the film winding efficiency without the need for frequent manual adjustments.

[0030] Working principle: When using this film roll device, the film is first wound around the bottom of the guide roller 25 and then around the bottom of the adjusting roller 29 and inserted into the gap between the pressure roller 27 and the adjusting roller 29. Finally, it is wound around the top of the pressure roller 27 and onto the film roll 24. When the motor 23 drives the shaft 22 to rotate, the film disc 24 rotates to evenly wind the film. At this time, the pressure of the film on the pressure roller 27 is monitored by the pressure sensor 28. The tension pressure value of the film is set by the control panel 21. When the pressure sensor 28 detects that the pressure is less than the set value, the cylinder 32 pushes the brake pad 34 inside the arc-shaped cover 33 to generate a gradually increasing frictional force with the brake disc 31, so that the pressure value reaches the set value. When the pressure sensor 28 detects that the pressure value is too high, the cylinder 32 drives the brake pad 34 to move downward to reduce the frictional force between it and the brake disc 31, thereby achieving uniform control of the tension and improving the film winding efficiency without the need for frequent manual adjustments. When the height of the film roll 2 needs to be adjusted according to the height of the film production equipment, the forward and reverse motors on the top of the base 1 can be started to drive the lead screw 14 to rotate. At this time, the threaded sleeve 15 and the telescopic rod 12 move up and down simultaneously, and the height can be fixed by tightening the screw 13, so as to adapt to the film feeding height and effectively improve the practicality of the device in use.

[0031] All technical features in this embodiment can be freely combined according to actual needs.

[0032] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A film roll device, comprising a base (1), characterized in that: The top of the base (1) is equipped with a film roll frame (2) that can be adjusted up and down. The inner side of the film roll frame (2) is equipped with a pressure roller (27) for monitoring the film tension pressure and an adjusting roller (29). The outer side of the film roll frame (2) is equipped with a tension adjustment mechanism (3) that can adjust the rotational friction of the adjusting roller (29) to achieve uniform tension control.

2. The film roll device according to claim 1, characterized in that: At each of the four corners of the base (1), there are pulleys (11) to facilitate the movement of the device. Each pulley (11) is equipped with a brake pedal that can be braked by foot.

3. The film roll device according to claim 1, characterized in that: A forward and reverse motor is embedded in the top center of the base (1), and a lead screw (14) driven by the forward and reverse motor is installed in the top center of the base (1). A threaded sleeve (15) is threadedly connected to the outer ring surface of the lead screw (14), and the top of the threaded sleeve (15) is fixedly connected to the bottom of the film roll frame (2).

4. The film roll device according to claim 1, characterized in that: Telescopic rods (12) are installed at the four corners of the top of the base (1). Screws (13) for tightening and fixing the telescopic rods (12) are installed on the outer side of the telescopic rods (12). The tops of the four telescopic rods (12) are respectively fixedly connected to the four corners of the bottom of the film roll frame (2).

5. A film roll device according to claim 1, characterized in that: A rotating shaft (22) is installed on the higher end of the inner side of the film roll frame (2). A film disc (24) is fitted on the outer ring surface of the rotating shaft (22). The rotating shaft (22) passes through to one end of the film disc (24) and is tightened and fixed on the outer side of the film disc (24) by bolts. A motor (23) for driving the rotating shaft (22) to rotate is installed on one end of the outer side of the film roll frame (2).

6. A film roll device according to claim 4, characterized in that: A guide roller (25) is rotatably mounted between the two sides of the lower inner end of the film roll frame (2). Fixed plates (26) are symmetrically mounted at both ends of the top of the film roll frame (2). The pressure roller (27) is rotatably mounted between the inner sides of the two fixed plates (26). The adjusting roller (29) is rotatably mounted below the bottom of the pressure roller (27).

7. A film roll device according to claim 6, characterized in that: A pressure sensor (28) is installed on the outer side of the fixed plate (26), and the sensing end of the pressure sensor (28) extends into the interior of the fixed plate (26) and contacts the pressure roller (27).

8. A film roll device according to claim 1, characterized in that: A cylinder (32) is installed on the tension adjustment mechanism (3). The cylinder (32) is installed on the outer side of the film roll frame (2). A telescopic column is installed on the top of the top rod of the cylinder (32), and an arc-shaped cover (33) is installed on the top of the telescopic column. A spring (35) is installed between the top of the arc-shaped cover (33) and the top of the top rod. The spring (35) is sleeved on the outer ring surface of the telescopic column. A brake pad (34) is installed on the inner side of the arc-shaped cover (33). A brake disc (31) is installed at one end of the adjusting roller (29). The brake disc (31) is located above the top of the arc-shaped cover (33) and its size matches the inner size of the brake pad (34). A control panel (21) capable of linking and controlling the motor (23), pressure sensor (28), and cylinder (32) is installed on one end of the outer side of the base (1).

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