A tensioning structure for a sheet cutting machine

Abstract

This utility model relates to the field of sheet cutting machine technology, specifically to a tightening structure for a sheet cutting machine, including a connecting roller. Threaded rods are installed on both sides of the outer wall of the connecting roller. A movable disc is installed at the end of the threaded rod away from the connecting roller. A side plate is rotatably connected to the outer side of the movable disc. Adjustment grooves are formed at both ends inside the side plate. An adjustment block is slidably connected to the inner side of the adjustment groove. A tightening and locking mechanism is installed on the adjustment block and the threaded rod. The tightening and locking mechanism includes a movable tightening component and a positioning component. The movable tightening component is used for tightening operations, and the positioning component is used for positioning the movable tightening component. This utility model has a simple structure and is easy to operate. Operators can freely adjust the position of the tightening rod without restriction, improving the accuracy of tightening adjustment. The locking and unlocking operation after adjustment is also time-saving and labor-saving, further improving adjustment accuracy and practicality.

Description

Technical Field

[0001] This utility model relates to the field of tension cutting machine technology, and specifically to a tensioning structure for a tension cutting machine. Background Technology

[0002] A sheet cutting machine is a processing machine used in industrial production to cut various raw materials using mechanical principles and equipment power. This machine has many different names depending on local customs, generally including: cutting machine, slitting machine, cross-cutting machine, cutting machine, blanking machine, paper cutter, etc. Based on automation, it can be classified as manual sheet cutting machine, semi-automatic sheet cutting machine, and fully automatic sheet cutting machine. It can be used for cutting ITO conductive film, fiberglass resin board, plastic film, PVC film, film, floor tiles, copper foil, aluminum sheet, paper, and sticker materials. Currently, in existing sheet cutting machines, the outer layer circumference is larger than the inner layer during winding, with the deviation increasing towards the outermost layer. This affects the size of the cut product and causes significant inconvenience to subsequent processing steps. Therefore, a tightening device is needed to solve these problems. However, existing tightening devices lack limiting measures, which can easily lead to unstable tightening during rotation, reducing the working efficiency of the tightening structure.

[0003] To address the aforementioned technical problems, Chinese Patent No. CN221916636U discloses a tightening structure for a sheet cutter, specifically including a rotating double-headed screw, a tightening component mounted on a rotating bracket that can be tightened and opened to control the sheet cutting length of the sheet cutter, and a limiting component that can fix the tightening component. The tightening component is located on the outer ring of the double-headed screw.

[0004] Although the existing technical solution described above fixes the tightening structure after the tightening work is completed, preventing deflection and movement, it requires aligning the limiting groove with the guide groove to lock the tightening structure. However, there is a certain distance between the two adjacent sets of guide grooves, making it impossible to accurately adjust the tightening position of the tightening structure. The adjustment and locking are limited, which in turn affects the practicality of the device. Utility Model Content

[0005] The purpose of this utility model is to provide a tightening structure for a sheet cutting machine, so as to solve the problem mentioned in the background art that when the tightening device locks the tightening structure, the limiting groove needs to be aligned with the guide groove for positioning, and there is a certain distance between the two adjacent sets of guide grooves, making it impossible to accurately adjust the tightening position of the tightening structure. The adjustment and locking are limited, which in turn affects the practicality of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A tensioning structure for a sheet cutting machine includes a connecting roller. Threaded rods are installed on both sides of the outer wall of the connecting roller. A movable disc is installed at the end of the threaded rod away from the connecting roller. A side plate is rotatably connected to the outer side of the movable disc. Adjustment grooves are formed at both ends inside the side plate. Adjustment blocks are slidably connected to the inner sides of the adjustment grooves. A tensioning locking mechanism is installed on the adjustment blocks and the threaded rods. The tensioning locking mechanism includes a movable tensioning component and a positioning component. The movable tensioning component is used for performing the tensioning operation, and the positioning component is used for positioning the movable tensioning component.

[0008] As a preferred embodiment of this utility model, the movable tightening assembly includes an adjusting seat threadedly connected to the outer wall of the threaded rod. Movable rods are fixedly connected to both sides of the outer wall of the adjusting seat. Two sets of connecting plates are rotatably connected to the outer walls of the two sets of movable rods. A connecting seat is hinged to the end of the connecting plate away from the adjusting seat. One side of the connecting seat is fixedly connected to one side of the adjusting block. A tightening rod is installed between the two sets of opposite connecting seats.

[0009] As a preferred embodiment of this utility model, a placement plate is installed on one side of the outer wall of one of the side plates. A rotating disk is rotatably connected inside the placement plate. One side of the rotating disk is fixedly connected to one side of the movable disk. An operating rod is installed on one side of the movable disk. An operating cylinder is slidably connected to the other end of the outer wall of the operating rod. A handle is installed at the end of the operating cylinder away from the placement plate. Limiting grooves are formed on both sides of the inner wall of the operating cylinder. Limiting blocks are installed at both ends of the outer wall of the operating rod. The limiting blocks and the limiting grooves are slidably connected.

[0010] As a preferred embodiment of this utility model, the positioning component includes a linkage plate rotatably connected to one end of the outer wall of the operating cylinder, a positioning groove is provided on the outer wall of the placement plate around the rotating plate, the positioning groove has a circular cross-section, and a locking seat is installed on one side of the outer wall of the rotating plate.

[0011] As a preferred embodiment of this utility model, a reset groove is provided on one side of the locking seat. The cross-section of the reset groove is T-shaped. One end of the linkage plate is slidably connected to the reset groove. A pressure rod is installed on the other end of the outer wall of the linkage plate. A rubber column corresponding to the positioning groove is installed on the other end of the pressure rod.

[0012] As a preferred embodiment of this utility model, the locking seat has a pressing groove on one side of the reset groove, and a pressing block slidably connected to the pressing groove is installed on one side of the outer wall of the linkage plate. The locking seat has a sliding groove on one side of the pressing groove, and a sliding block is slidably connected to the inner side of the sliding groove. A groove is formed on one side of the sliding block, and a toggle rod is rotatably connected to the inner side of the groove. A toggle plate is fixedly sleeved on one section of the outer wall of the toggle rod. A torsion spring is installed between one end of the toggle rod and the inner wall of the groove. A binding groove is formed on one side of the outer wall of the sliding block, and a first spring is installed between the inner wall of the binding groove and the inner wall of the sliding groove. A rubber pad is installed on one end of the inner wall of the pressing groove. Corresponding inclined surfaces are formed on the opposite ends of the pressing block and the sliding block. An abutment groove is formed on the outer wall of the pressing block at its inclined surface, and the abutment groove is slidably connected to the toggle plate.

[0013] As a preferred embodiment of this utility model, a pull rod is installed on one side of the outer wall of the sliding block, and a pull groove is provided on one side of the outer wall of the locking seat. The pull rod and the pull groove are slidably connected, and a pull ring is rotatably connected to one end of the pull rod extending to the outside of the pull groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, the tightening operation is performed by a movable tightening component, and the positioning component positions the movable tightening component. The structure is simple and the operation is convenient. The operator can freely adjust the position of the tightening rod without restriction, which improves the accuracy of tightening adjustment. The locking and unlocking operation after adjustment is also time-saving and labor-saving, further improving the adjustment accuracy and practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial three-dimensional structural diagram of the placement plate and rotating plate of this utility model;

[0018] Figure 3 This is a partial cross-sectional view of the locking seat of this utility model.

[0019] In the diagram: 1. Connecting roller; 2. Threaded rod; 3. Movable disc; 4. Side plate; 5. Adjusting block; 6. Adjusting seat; 7. Connecting plate; 8. Connecting seat; 9. Placement disc; 10. Rotary disc; 11. Operating lever; 12. Linkage plate; 13. Locking seat; 14. Rubber column; 15. Extrusion block; 16. Sliding block; 17. Paddle plate; 18. Rubber pad; 19. Pull rod; 20. Tightening rod; 21. Limiting block; 22. Operating cylinder. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to 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.

[0021] Example: Please refer to Figures 1-3 This utility model provides a technical solution:

[0022] A tensioning structure for a sheet cutting machine includes a connecting roller 1. Threaded rods 2 are installed on both sides of the outer wall of the connecting roller 1. A movable disc 3 is installed at the end of the threaded rod 2 away from the connecting roller 1. A side plate 4 is rotatably connected to the outer side of the movable disc 3. Adjustment grooves are opened at both ends inside the side plate 4. An adjustment block 5 is slidably connected to the inner side of the adjustment groove. A tensioning locking mechanism is installed on the adjustment block 5 and the threaded rod 2. The tensioning locking mechanism includes a movable tensioning component and a positioning component. The movable tensioning component is used for tensioning operations, and the positioning component is used for positioning the movable tensioning component. During use, the device can perform tensioning operations through the movable tensioning component and position the movable tensioning component. The structure is simple and easy to operate. Operators can freely adjust the position of the tensioning rod 20 without restriction, improving the precision of tensioning adjustment. The locking and unlocking process after adjustment is also time-saving and labor-saving, further improving adjustment precision and practicality.

[0023] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the movable tightening assembly includes an adjusting seat 6 threaded to the outer wall of the threaded rod 2. Movable rods are fixedly connected to both sides of the outer wall of the adjusting seat 6. Two sets of connecting plates 7 are rotatably connected to the outer walls of the two sets of movable rods. A connecting seat 8 is hinged to the end of the connecting plate 7 away from the adjusting seat 6. One side of the connecting seat 8 is fixedly connected to one side of the adjusting block 5. A tightening rod 20 is installed between the two sets of opposite connecting seats 8. A placement plate 9 is installed on one side of the outer wall of one set of side plates 4. A rotating disk 10 is rotatably connected inside the placement plate 9. One side of the rotating disk 10 is fixedly connected to one side of the movable disk 3. An operating rod 11 is installed on one side of the movable disk 3. An operating cylinder 22 is slidably connected to the other end of the outer wall of the operating rod 11. A handle is installed on the end of the operating cylinder 22 away from the placement plate 9. Limiting grooves are provided on both sides of the inner wall of the operating cylinder 22. Limiting blocks 21 are installed at both ends of the outer wall of the operating rod 11. The limiting blocks 21 and the limiting grooves are slidably connected. First, when it is necessary to adjust the position of the tightening rod 20, the handle on the operating cylinder 22 can be held in conjunction with the limiting blocks 21 and the limiting grooves to drive the operating rod 11 and the rotating disk 10 to rotate. This causes the movable disk 3 to drive the two sets of threaded rods 2 and the connecting rollers 1 to rotate, so that each set of connecting plates 7 deflects and moves accordingly. The other end of the connecting plate 7 can also move at an angle on the connecting seat 8. When the two adjacent sets of connecting plates 7 are in the telescopic movement, the connecting seat 8 can drive the adjusting block 5 to slide inside the adjusting groove to ensure the smoothness of the movement. The tightening rod 20 can move accordingly during the process to achieve tightening or releasing movement.

[0024] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the positioning assembly includes a linkage plate 12 rotatably connected to one end of the outer wall of the operating cylinder 22. The outer wall of the placement plate 9 is provided with a positioning groove on the periphery of the rotating plate 10. The positioning groove has a circular cross-section. A locking seat 13 is installed on one side of the outer wall of the rotating plate 10. A reset groove is provided on one side of the locking seat 13. The reset groove has a T-shaped cross-section. One end of the linkage plate 12 is slidably connected to the reset groove. A pressure rod is installed on the other end of the outer wall of the linkage plate 12. A rubber column 14 corresponding to the positioning groove is installed on the other end of the pressure rod. After adjusting the tightening rod 20, the operating cylinder 22 can be pushed by holding the handle, so that the linkage plate 12 is pushed towards the placement plate 9, so that the squeezing block 15 on the linkage plate 12 is squeezed into the squeezing groove. This causes the squeezing block 15 and the inclined surface on the sliding block 16 to abut against each other, forcing the sliding block 16 to move inside the sliding groove and stretch the first spring. When the inclined surface on the squeezing block 15 contacts the lever 17, it can be squeezed into the groove, causing the torsion spring and the lever to retract.

[0025] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, a squeezing groove is formed inside the locking seat 13 on one side of the reset groove. A squeezing block 15, which is slidably connected to the squeezing groove, is installed on one side of the outer wall of the linkage plate 12. A sliding groove is formed inside the locking seat 13 on one side of the squeezing groove. A sliding block 16 is slidably connected inside the sliding groove. A groove is formed on one side of the sliding block 16. A toggle rod is rotatably connected inside the groove. A toggle plate 17 is fixedly sleeved on one section of the outer wall of the toggle rod. A torsion spring is installed between one end of the toggle rod and the inner wall of the groove. A binding groove is formed on the outer wall of the sliding block 16 on one side of the groove. A first spring is installed between the inner wall of the binding groove and the inner wall of the sliding groove. A rubber pad 18 is installed at one end of the inner wall of the squeezing groove. A pair of... The outer wall of the pressing block 15 has an abutment groove on its inclined surface. The abutment groove is slidably connected to the lever plate 17. Furthermore, during the pressing process, the pressing block 15 also presses the rubber pad 18 to retract until the groove port is aligned with the abutment groove port. Then, the torsion spring can drive the lever plate 17 to pop out to the inside of the abutment groove. At this time, the linkage plate 12 is released, and the first spring and the rubber pad 18 are reset so that the lever plate 17 abuts against the outer wall of the abutment groove. At this time, the pressure rod also presses the rubber column 14 into the inner side of the positioning groove. The rubber column 14 is pressed tightly against the inner wall of the positioning groove, increasing the friction and preventing the operating rod 11, the rotating disk 10 and the movable disk 3 from deflecting and moving again, so that the threaded rod 2 cannot move and the position of the tightening rod 20 after adjustment is locked.

[0026] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, a pull rod 19 is installed on one side of the outer wall of the sliding block 16, and a groove is opened on one side of the outer wall of the locking seat 13. The pull rod 19 is slidably connected to the groove. A pull ring is rotatably connected to one end of the pull rod 19 extending to the outside of the groove. Furthermore, when further adjustment is needed, the pull ring can be fastened to drive the pull rod 19 to move inside the groove, so that the sliding block 16 is actively retracted into the sliding groove, allowing the lever 17 to be pulled out from the inside of the abutment groove. After the lever 17 moves away from the inside of the abutment groove, the rubber pad 18 can return to its original position and spring back, squeezing out the compression block 15. At this time, the rubber column 14 also moves away from the inside of the positioning groove. Then, the handle can be held again to control the rotation of the rotating disk 10 and the movable disk 3 to adjust the position of the tightening rod 20.

[0027] The implementation principle of the tensioning structure of a sheet cutting machine according to an embodiment of this application is as follows: When it is necessary to adjust the position of the tensioning rod 20, the handle on the operating cylinder 22 can be held in conjunction with the limiting block 21 and the limiting groove to drive the operating rod 11 and the rotating disk 10 to rotate. This causes the movable disk 3 to also drive the two sets of threaded rods 2 and the connecting roller 1 to rotate, causing each set of connecting plates 7 to deflect and move accordingly. The other end of the connecting plate 7 can also move at an angle on the connecting seat 8. When the two adjacent sets of connecting plates 7 are in telescopic movement, the connecting seat 8 can drive the adjusting block 5 to move in the adjusting groove. Side sliding ensures smooth movement. The tightening rod 20 can move during the process to achieve tightening or releasing motion. After adjusting the tightening rod 20, the handle can be held to push the operating cylinder 22, causing the linkage plate 12 to move towards the placement plate 9. This allows the pressing block 15 on the linkage plate 12 to be squeezed into the pressing groove, causing the pressing block 15 and the inclined surface on the sliding block 16 to abut against each other. This forces the sliding block 16 to move inside the sliding groove and stretch the first spring. When the inclined surface on the pressing block 15 contacts the lever 17, it can be squeezed into the groove. This causes the torsion spring and the actuating lever to retract. During the pushing process, the squeezing block 15 also squeezes the rubber pad 18 to retract until the groove port is aligned with the abutment groove port. Then, the torsion spring can drive the lever 17 to pop out to the inside of the abutment groove. At this time, the linkage plate 12 is released, and the first spring and the rubber pad 18 return to their original positions, allowing the lever 17 to abut against the outer wall of the abutment groove. At this time, the pressure rod also presses the rubber column 14 into the inner side of the positioning groove. The rubber column 14 is pressed tightly against the inner wall of the positioning groove, increasing the friction and preventing the operating lever 11, the rotating disk 10, and the movable disk 3 from deflecting or moving again. To prevent the threaded rod 2 from moving, the position of the tightening rod 20 after adjustment is locked. When further adjustment is needed, the pull ring can be fastened to drive the pull rod 19 to move inside the pull groove, so that the sliding block 16 is actively retracted into the sliding groove, allowing the lever 17 to be pulled out from the inside of the abutment groove. After the lever 17 moves away from the inside of the abutment groove, the rubber pad 18 can return to its original position and spring back, squeezing out the compression block 15. At this time, the rubber column 14 also moves away from the inside of the positioning groove. Then, the handle can be held again to control the rotation of the rotating disk 10 and the movable disk 3 to adjust the position of the tightening rod 20.

[0028] 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 tightening structure of a sheet cutting machine comprising a connecting roller (1), characterized in that: Threaded rods (2) are installed on both sides of the outer wall of the connecting roller (1). A movable disc (3) is installed at the end of the threaded rod (2) away from the connecting roller (1). A side plate (4) is rotatably connected to the outer side of the movable disc (3). An adjustment groove is opened at both ends inside the side plate (4). An adjustment block (5) is slidably connected to the inner side of the adjustment groove. A tightening and locking mechanism is installed on the adjustment block (5) and the threaded rod (2). The tightening and locking mechanism includes a movable tightening component and a positioning component. The movable tightening component is used to perform tightening operation, and the positioning component is used to position the movable tightening component.

2. The tightening structure of a sheet cutting machine according to claim 1, wherein: The movable tightening assembly includes an adjusting seat (6) threaded to the outer wall of the threaded rod (2). Movable rods are fixedly connected to both sides of the outer wall of the adjusting seat (6). Two sets of connecting plates (7) are rotatably connected to the outer walls of the two sets of movable rods. A connecting seat (8) is hinged to the end of the connecting plate (7) away from the adjusting seat (6). One side of the connecting seat (8) is fixedly connected to one side of the adjusting block (5). A tightening rod (20) is installed between the two sets of connecting seats (8) opposite to each other.

3. A tightening structure of a sheet cutting machine according to claim 2, characterized in that: A placement plate (9) is installed on one side of the outer wall of one of the side plates (4). A rotating plate (10) is rotatably connected inside the placement plate (9). One side of the rotating plate (10) is fixedly connected to one side of the movable plate (3). An operating rod (11) is installed on one side of the movable plate (3). An operating cylinder (22) is slidably connected to the other end of the outer wall of the operating rod (11). A handle is installed at the end of the operating cylinder (22) away from the placement plate (9). Limiting grooves are opened on both sides of the inner wall of the operating cylinder (22). Limiting blocks (21) are installed at both ends of the outer wall of the operating rod (11). The limiting blocks (21) are slidably connected to the limiting grooves.

4. The tightening structure of a sheet cutter according to claim 3, characterized in that: The positioning component includes a linkage plate (12) rotatably connected to one end of the outer wall of the operating cylinder (22). The outer wall of the placement plate (9) is provided with a positioning groove located around the rotating plate (10). The positioning groove has a circular cross-section. A locking seat (13) is installed on one side of the outer wall of the rotating plate (10).

5. The tightening structure of a sheet cutter according to claim 4, characterized in that: A reset groove is provided on one side of the locking seat (13). The cross-section of the reset groove is T-shaped. One end of the linkage plate (12) is slidably connected to the reset groove. A pressure rod is installed on the other end of the outer wall of the linkage plate (12). A rubber column (14) corresponding to the positioning groove is installed on the other end of the pressure rod.

6. The tightening structure of a sheet cutter according to claim 5, characterized in that: The locking seat (13) has a pressing groove on one side of the reset groove. A pressing block (15) that is slidably connected to the pressing groove is installed on one side of the outer wall of the linkage plate (12). The locking seat (13) has a sliding groove on one side of the pressing groove. A sliding block (16) is slidably connected to the inner side of the sliding groove. A groove is provided on one side of the sliding block (16). A toggle rod is rotatably connected to the inner side of the groove. A toggle plate (17) is fixedly sleeved on one section of the outer wall of the toggle rod. A torsion spring is installed between one end of the lever and the inner wall of the groove. A binding groove is provided on one side of the outer wall of the sliding block (16) located in the groove. A first spring is installed between the inner wall of the binding groove and the inner wall of the sliding groove. A rubber pad (18) is installed at one end of the inner wall of the squeezing groove. Corresponding inclined surfaces are provided at the opposite ends of the squeezing block (15) and the sliding block (16). An abutment groove is provided on the outer wall of the squeezing block (15) located at its inclined surface. The abutment groove is slidably connected to the lever plate (17).

7. The tightening structure of a sheet cutter according to claim 6, characterized in that: A pull rod (19) is installed on one side of the outer wall of the sliding block (16), and a groove is provided on one side of the outer wall of the locking seat (13). The pull rod (19) is slidably connected to the groove, and a pull ring is rotatably connected to one end of the pull rod (19) extending to the outside of the groove.

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