A tensioning device for a tinplate web

Abstract

The application relates to a tensioning device for tinplate coiled material, which comprises a rack, a constant-pressure roller, a pressing assembly, a guide roller and an adjusting assembly, the constant-pressure roller is rotationally connected to the rack, the pressing assembly is used for pressing the coiled material around the constant-pressure roller on the constant-pressure roller, the adjusting assembly comprises two sliding sleeves and a driving piece, the guide roller is coaxially arranged with the constant-pressure roller, two ends of the guide roller are rotationally connected in the sliding sleeves respectively, the sliding sleeves are slidingly connected to the rack, and the driving piece can be used for driving the sliding sleeves to move to the other side of the constant-pressure roller. The application has the effects of facilitating the feeding operation of the tinplate coiled material and ensuring the safety of workers.

Description

Technical Field

[0001] This application relates to the field of coil conveying, and more particularly to a tensioning device for tinplate coils. Background Technology

[0002] During the production process, large roll material processing machines such as coating machines, laminating machines, and composite machines are generally equipped with tensioning mechanisms during the roll material conveying stage. Their function is to ensure that the conveyed roll material has sufficient tension and to prevent the roll material from slipping on the drive rollers inside the processing machine or from generating excessive deflection between the idler rollers.

[0003] Currently, Chinese utility model patent CN211310334 discloses a tensioning device for roll material conveying, including a tensioning mechanism comprising a fixed pressure roller, a movable pressure roller, a guide roller, and an adjusting device. The fixed pressure roller and the movable pressure roller are rotatably mounted on the frame, and the fixed and movable pressure rollers cooperate to press the roll material. The adjusting device is mounted on the frame and is used to adjust the distance between the fixed and movable pressure rollers. This utility model reduces slippage of the roll material during tensioning by adjusting the distance between the movable and fixed pressure rollers using an adjusting cone.

[0004] In actual production, the conveying direction and output direction of the coil are the same. Therefore, the coil will first pass between the moving pressure roller and the fixed pressure roller, and then wrap back onto the guide roller before being conveyed to the subsequent equipment. At this time, the coil forms an S-shaped path in the tensioning device, so that the coil can have a tensioning effect. Therefore, in the actual feeding process, the workers need to pre-load the end of the coil around the fixed pressure roller and the guide roller in sequence. Tinplate coil has high hardness and toughness and can withstand bending and stretching changes. It is difficult for workers to feed and fit the tinplate coil into an S-shaped path. Tinplate is prone to springback, which threatens the safety of workers. Utility Model Content

[0005] To facilitate the feeding of tinplate coils and ensure the safety of workers, this application provides a tensioning device for tinplate coils.

[0006] This application provides a tensioning device for tinplate coils, which adopts the following technical solution: A tensioning device for tinplate coils includes a frame, a pressure roller clamping assembly, a guide roller, and an adjusting assembly. The pressure roller is rotatably connected to the frame. The clamping assembly is used to press the coil that passes over the pressure roller onto the pressure roller. The adjusting assembly includes two sliding sleeves and a driving component. The guide roller is coaxially arranged with the pressure roller. Both ends of the guide roller are rotatably connected to the sliding sleeves. The sliding sleeves are slidably connected to the frame. The driving component can be used to move the sliding sleeves to the other side of the pressure roller.

[0007] By adopting the above technical solution, a guide roller that can be moved by a sliding sleeve and a driving component is set up. During the feeding stage, the guide roller can be moved to the other side of the pressure roller by the driving component, reducing the operational obstacles of the roll material going around the roller body. After feeding is completed, the guide roller is moved back to the working position, which reduces the safety risks caused by the roll material rebound during manual feeding. At the same time, the basic tension function of the roll material is guaranteed by the cooperation of the pressure roller, the pressing component and the guide roller.

[0008] Optionally, the sliding path of the sliding sleeve is an arc, with the axis of the pressure roller as the center and the distance between the guide roller and the pressure roller as the radius.

[0009] By adopting the above technical solution, the sliding path of the sliding sleeve is defined as an arc with the axis of the pressure roller as the center and the distance between the guide roller and the pressure roller as the radius. This design ensures that the distance between the guide roller and the pressure roller remains constant during the movement process. This facilitates the switching of the guide roller position during feeding and maintains the stability of the roller distance required for the tension of the roll material during the switching from feeding to the working state. It avoids tension fluctuations caused by the movement of the guide roller and ensures the consistency of the tensioning effect.

[0010] Optionally, the driving component includes an arc-shaped rack, a drive motor, a drive base, and a drive gear. The arc-shaped rack is coaxially arranged with the sliding path of the sliding sleeve and is mounted on the frame. The drive base is slidably connected to the frame along the sliding path of the sliding sleeve, and the sliding sleeve is rotatably connected to the drive base. The axis of the drive gear is parallel to the axis of the arc-shaped rack, and the drive gear is rotatably connected to the drive base. The drive gear meshes with the arc-shaped rack, and the drive motor is used to drive the drive gear to rotate.

[0011] By adopting the above technical solution, using structures such as arc-shaped racks, drive motors, and drive gears, a precise and stable power drive method is provided for the movement of the guide rollers. By driving the drive motor to rotate along the arc-shaped rack, the guide rollers can move smoothly along a preset arc path, replacing manual adjustment, improving the degree of automation of operation, reducing the frequency of manual contact with the roll material, further reducing safety hazards, and ensuring the accuracy of guide roller position adjustment.

[0012] Optionally, the adjustment assembly further includes a locking element, which includes a locking block and a locking cylinder. The locking block is slidably connected to the frame in a horizontal direction, and the locking cylinder is used to drive the locking block to move. The locking block is used to support the sliding sleeve when the equipment is in operation.

[0013] By adopting the above technical solution, the locking component supports the sliding sleeve when the equipment is working, which solves the problem that the guide roller may shift due to vibration or tension during operation. It also reduces the force on the drive motor, extends the service life of the drive motor, and the supporting effect of the locking block can stabilize the position of the sliding sleeve and the guide roller, ensuring the structural stability of the tensioning device during operation, avoiding tension fluctuations in the roll material or equipment failure caused by the displacement of the guide roller, and improving the working reliability of the device.

[0014] Optionally, when the equipment is in operation, the highest point of the pressure roller is higher than the highest point of the guide roller, and the lowest point of the guide roller is lower than the lowest point of the pressure roller.

[0015] By adopting the above technical solution, the height relationship between the pressure roller and the guide roller under the working state is limited, so that the roll material naturally forms a reasonable S-shaped path between the two. This path increases the contact area between the roll material and the roller body, ensures that the roll material is subjected to sufficient tension, and reduces the contact between the feed end of the roll material and the guide roller and the discharge end of the roll material and the pressure roller.

[0016] Optionally, the pressing assembly includes a pressing frame, a movable pressure roller, and a pressing cylinder. The pressing frame is rotatably connected to the machine frame, and the rotation axis of the pressing frame is parallel to the rotation axis of the fixed pressure roller. The movable pressure roller is rotatably connected to the pressing frame, and the rotation axis of the movable pressure roller is parallel to the rotation axis of the pressing frame. The pressing cylinder is used to change the distance between the movable pressure roller and the fixed pressure roller.

[0017] By adopting the above technical solution, the clamping assembly adjusts the distance between the moving pressure roller and the fixed pressure roller through the clamping cylinder, which solves the clamping requirements of tinplate coils of different specifications; by flexibly adjusting the pressure of the moving pressure roller, it can ensure that the coil is stably clamped and avoid slippage, while adapting to diverse production scenarios and improving the versatility of the device.

[0018] Optionally, the cylinder body of the clamping cylinder is rotatably connected to the frame, and the piston rod of the clamping cylinder is rotatably connected to the clamping frame.

[0019] By adopting the above technical solution, the cylinder body of the pressing cylinder is rotatably connected to the frame, and the piston rod is rotatably connected to the pressing frame, making the pressing cylinder more flexible when driving the pressing frame to rotate, and avoiding motion interference problems caused by mechanical hard connection; this design ensures the smoothness of the adjustment process of the moving pressure roller, reduces component wear, and improves the service life and operational reliability of the pressing assembly.

[0020] Optionally, the dynamic pressure roller is covered with a rubber coating to reduce hard contact with the roll material.

[0021] By adopting the above technical solution, a rubber layer is wrapped on the dynamic pressure roller, which solves the problem of surface scratches caused by hard contact between tinplate rolls and metal rollers; the elasticity of the rubber layer can buffer the pressure and protect the surface quality of the roll; at the same time, it increases the friction between the roller and the roll, further preventing the roll from slipping, thus taking into account both product quality and tension stability.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The design of the guide roller being able to move to the other side of the pressure roller via the drive component facilitates the feeding of tinplate coils. During the feeding stage, the guide roller avoids the coil path, reducing operational obstacles. After feeding is completed, it moves back to the working position, avoiding personnel safety threats caused by the high hardness and easy rebound of tinplate, reducing the risk of manual contact with the coil, and improving feeding efficiency by replacing manual adjustment with automated drive. 2. The guide roller moves along an arc path centered on the axis of the fixed pressure roller, ensuring that its distance from the fixed pressure roller remains constant. The height relationship between the fixed pressure roller and the guide roller allows the roll material to naturally form a stable S-shaped path, increasing the contact area to provide sufficient tension. Secondly, the locking component supports the sliding sleeve during operation, preventing the guide roller from shifting due to vibration or tension. The pressing assembly adjusts the distance of the moving pressure roller through a cylinder to adapt to the pressing requirements of different roll materials. These multiple designs work together to ensure the consistency of the tensioning effect and the stability of the equipment operation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a tensioning device used for tinplate coils.

[0024] Figure 2 yes Figure 1 A schematic diagram of the structure of the adjustment component.

[0025] Figure 3 yes Figure 2 A schematic diagram of the locking mechanism.

[0026] Figure 4 yes Figure 1 A schematic diagram of the structure of the intermediate clamping assembly.

[0027] Reference numerals: 1. Frame; 11. Arc groove; 12. Sliding groove; 2. Fixed pressure roller; 3. Pressing assembly; 31. Pressing frame; 32. Moving pressure roller; 33. Pressing cylinder; 34. Rubber coating layer; 4. Guide roller; 5. Adjusting assembly; 51. Sliding sleeve; 52. Driving component; 521. Arc rack; 522. Drive motor; 523. Drive base; 524. Drive gear; 53. Locking component; 531. Locking block; 532. Locking cylinder. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail.

[0029] This application discloses a tensioning device for tinplate coils. (Refer to...) Figure 1 and Figure 2 A tensioning device for tinplate coils includes a frame 1, a fixed pressure roller 2, a pressing assembly 3, a guide roller 4, and an adjusting assembly 5. The fixed pressure roller 2 is horizontally arranged, and its length is perpendicular to the feeding direction of the coil. The fixed pressure roller 2 is rotatably connected to the frame 1. The adjusting assembly 5 includes two sliding sleeves 51, a driving component 52, and two locking components 53. The length direction of the guide roller 4 is parallel to the length direction of the fixed pressure roller 2. The two sliding sleeves 51 are rotatably connected to the two ends of the guide roller 4, and the guide roller 4 is slidably connected to the frame 1. The sliding path of the guide roller 4 is an arc, and the sliding path of the guide roller 4 is circular with the axis of the fixed pressure roller 2 as the radius. The distance from the guide roller 4 to the fixed pressure roller 2 is the radius. The frame 1 has an arc groove 11, and the sliding sleeves 51 are located in the arc groove 11. The driving component 52 is used to drive the sliding sleeves 51 to move along the length direction of the arc groove 11. The pressing assembly 3 is used to press the coil onto the fixed pressure roller 2.

[0030] Reference Figure 1 and Figure 2 The driving component 52 includes an arc-shaped rack 521, a drive motor 522, a drive base 523, and a drive gear 524. The drive base 523 is slidably connected to the frame 1 along the path of the arc-shaped groove 11. The sliding sleeve 51 is rotatably connected to the drive base 523. The drive gear 524 is coaxially arranged with the sliding sleeve 51 and is rotatably connected to the drive base 523. The drive motor 522 is fixedly arranged on the drive base 523. The output shaft of the drive motor 522 is fixedly connected to the drive gear 524. The arc-shaped rack 521 is coaxially arranged with the arc-shaped groove 11 and is fixedly arranged on the frame 1. The arc-shaped rack 521 and the drive gear 524 are meshed.

[0031] Two locking elements 53 correspond to two sliding sleeves 51. The locking element 53 includes a locking block 531 and a locking cylinder 532. The inner side wall of the arc groove 11 is provided with a sliding groove 12, which extends horizontally. The locking block 531 is slidably connected in the sliding groove 12. The length direction of the locking cylinder 532 is parallel to the sliding direction of the locking block 531. When the equipment is in working condition, the height of the sliding sleeve 51 is higher than the height of the locking block 531. The locking block 531 is used to support the sliding sleeve 51. The highest position of the pressure roller 2 is higher than the highest position of the guide roller 4, and the lowest position of the guide roller 4 is lower than the lowest position of the pressure roller 2. The roll material passes around the pressure roller 2 and the guide roller 4 in sequence to form an S-shaped conveying path.

[0032] The pressing assembly 3 includes a pressing frame 31, a moving pressure roller 32, and a pressing cylinder 33. The pressing frame 31 is rotatably connected to the frame 1. The rotation axis of the pressing frame 31 is parallel to the rotation axis of the fixed pressure roller 2. The length direction of the moving pressure roller 32 is parallel to the length direction of the fixed pressure roller 2. The moving pressure roller 32 is rotatably connected to the pressing frame 31. The side wall of the moving pressure roller 32 is covered with a rubber coating layer 34. The rubber coating layer 34 is used to directly contact the roll material. The cylinder body of the pressing cylinder 33 is rotatably connected to the frame 1, and the piston rod of the pressing cylinder 33 is rotatably connected to the pressing frame 31.

[0033] The implementation principle of a tensioning device for tinplate coils according to an embodiment of this application is as follows: Before the coil is fed, the guide roller 4 is rotated by the drive component 52. The guide roller 4 moves to one side of the fixed pressure roller 2. The operator first passes the coil through the fixed pressure roller 2 and the moving pressure roller 32, and then it is located below the guide roller 4. The drive component 52 is started again, and the drive component 52 drives the guide roller 4 to move along the path of the arc groove 11 to the other side of the fixed pressure roller 2. At this time, the coil forms an S-shaped path. Finally, the pressing cylinder 33 drives the pressing frame 31 to move, so that the moving pressure roller 32 presses the coil.

[0034] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tensioning device for tinplate coils, characterized in that: The assembly includes a frame (1), a pressure roller (2), a pressing assembly (3), a guide roller (4), and an adjustment assembly (5). The pressure roller (2) is rotatably connected to the frame (1). The pressing assembly (3) is used to press the roll material that passes over the pressure roller (2) onto the pressure roller (2). The adjustment assembly (5) includes two sliding sleeves (51) and a drive component (52). The guide roller (4) is coaxially arranged with the pressure roller (2). The two ends of the guide roller (4) are rotatably connected to the sliding sleeves (51). The sliding sleeves (51) are slidably connected to the frame (1). The drive component (52) can be used to drive the sliding sleeves (51) to move to the other side of the pressure roller (2).

2. The tensioning device for tinplate coils according to claim 1, characterized in that: The sliding path of the sliding sleeve (51) is an arc, with the axis of the pressure roller (2) as the center and the distance between the guide roller (4) and the pressure roller (2) as the radius.

3. A tensioning device for tinplate coils according to claim 2, characterized in that: The driving component (52) includes an arc rack (521), a drive motor (522), a drive seat (523), and a drive gear (524). The arc rack (521) is coaxially arranged with the sliding path of the sliding sleeve (51). The arc rack (521) is mounted on the frame (1). The drive seat (523) is slidably connected to the frame (1) along the sliding path of the sliding sleeve (51). The sliding sleeve (51) is rotatably connected to the drive seat (523). The axis of the drive gear (524) is parallel to the axis of the arc rack (521). The drive gear (524) is rotatably connected to the drive seat (523). The drive gear (524) meshes with the arc rack (521). The drive motor (522) is used to drive the drive gear (524) to rotate.

4. A tensioning device for tinplate coils according to claim 3, characterized in that: The adjustment assembly (5) also includes a locking element (53), which includes a locking block (531) and a locking cylinder (532). The locking block (531) is slidably connected to the frame (1) in the horizontal direction. The locking cylinder (532) is used to drive the locking block (531) to move. The locking block (531) is used to support the sliding sleeve (51) when the equipment is in operation.

5. A tensioning device for tinplate coils according to claim 2, characterized in that: When the equipment is in operation, the highest point of the pressure roller (2) is higher than the highest point of the guide roller (4), and the lowest point of the guide roller (4) is lower than the lowest point of the pressure roller (2).

6. A tensioning device for tinplate coils according to claim 1, characterized in that: The pressing assembly (3) includes a pressing frame (31), a moving pressure roller (32), and a pressing cylinder (33). The pressing frame (31) is rotatably connected to the frame (1). The rotation axis of the pressing frame (31) is parallel to the rotation axis of the fixed pressure roller (2). The moving pressure roller (32) is rotatably connected to the pressing frame (31). The rotation axis of the moving pressure roller (32) is parallel to the rotation axis of the pressing frame (31). The pressing cylinder (33) is used to change the distance between the moving pressure roller (32) and the fixed pressure roller (2).

7. A tensioning device for tinplate coils according to claim 6, characterized in that: The cylinder body of the clamping cylinder (33) is rotatably connected to the frame (1), and the piston rod of the clamping cylinder (33) is rotatably connected to the clamping frame (31).

8. A tensioning device for tinplate coils according to claim 6, characterized in that: The dynamic pressure roller (32) is covered with a rubber coating layer (34) to reduce hard contact with the roll material.

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