A winding-off device with adjustment function

Abstract

The utility model discloses a kind of unwinding device with adjusting function, it is related to unwinding device technical field, the device is directly placed in U-shaped support block by air inflation shaft and the first bearing of rotating rod surface, and cooperate with limit bolt quick locking, greatly simplify the operation of assembly and disassembly, improve the efficiency of changing volume, utilize magnetic-powder brake, second gear and third gear meshing transmission, can accurately, stably control the unwinding tension of air inflation shaft, ensure the tension constant in material conveying process, avoid wrinkle or tensile deformation due to speed fluctuation, simultaneously, rotate first hand wheel drive screw rod rotation, make threaded block drive slider accurate sliding along guide rail, slider is again through the cooperation of universal joint and air inflation shaft, realize the flexible adjustment of air inflation shaft longitudinal angle, can effectively adapt to the working condition that material left and right sides tension is not balanced, timely correct deviation phenomenon, to significantly improve the alignment accuracy of material in composite hot-pressing process.

Description

Technical Field

[0001] This utility model belongs to the technical field of unwinding devices, and specifically relates to an unwinding device with an adjustment function. Background Technology

[0002] In the material processing process, the unwinding device is a key component to ensure a stable supply of substrate or coating materials. The unwinding device usually uses an air shaft as the core component for bearing and releasing the roll material. During unwinding, both ends of the air shaft need to be installed on fixed support seats. The unwinding tension is controlled by external drive elements, and the tension of the material unwinding is maintained by the tension adjustment mechanism.

[0003] Traditional unwinding devices rely solely on brakes for speed control, which cannot independently compensate for tension fluctuations on both sides of the material. The tension on both sides is often inconsistent, and there is a lack of longitudinal angle adjustment methods, which can easily lead to deviation and wrinkling, directly affecting the bonding quality and finished product qualification rate of composite products. To solve the above problems, we provide an unwinding device with adjustment function. Utility Model Content

[0004] The purpose of this utility model is to provide an unwinding device with an adjustable function to solve the problems mentioned in the background art. Traditional unwinding devices rely solely on brakes to control speed, which cannot independently compensate for tension fluctuations on the left and right sides of the material. The tension on both sides is often inconsistent, and there is a lack of longitudinal angle adjustment means, which can easily lead to deviation and wrinkling, directly affecting the bonding quality and finished product qualification rate of composite products.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an unwinding device with an adjustable function, comprising a support frame, a magnetic powder brake bolted to one side of the support frame, a first gear fixedly connected to one end of the magnetic powder brake, a second gear rotatably connected to one side of the support frame, the surface of the first gear meshing with the second gear through teeth, a guide rail fixedly connected to the top of the support frame, a slider slidably connected to the top of the guide rail, a threaded rod rotatably connected inside the slider, a first handwheel fixedly connected to one end of the threaded rod, and the top of the guide rail... A threaded block is fixedly connected, and the inside of the threaded block is threadedly connected to a threaded rod. A U-shaped support block is fixedly connected to the top of both the support frame and the slider. A limit bolt is threadedly connected to the back of the U-shaped support block. An air shaft is provided on the top of the support frame. A universal joint is bolted to one end of the air shaft, and a rotating rod is bolted to the other end of the universal joint. A first bearing is slidably sleeved on the surface of both the rotating rod and the air shaft. The first bearing is placed inside the U-shaped support block. A third gear is fixedly sleeved on the surface of the rotating rod, and the surface of the third gear meshes with a second gear through its teeth.

[0006] Preferably, a swing arm is rotatably connected to the inner side of the support frame, a mounting bracket is rotatably connected to the top of the swing arm, and two rollers are rotatably connected to the top of the mounting bracket.

[0007] Preferably, one end of the air shaft is fixedly sleeved with a fixed sleeve, one side of the slider is fixedly connected to a side plate, one side of the side plate is bolted to a guide rod, the other end of the guide rod is rotatably connected to a threaded shaft, the other end of the threaded shaft is fixedly connected to a second handwheel, a sliding sleeve is slidably sleeved on the surface of the guide rod, one end of the sliding sleeve is threadedly connected to the threaded shaft, a support rod is fixedly connected to the top of the sliding sleeve, and a second bearing is rotatably connected to the top of the support rod, the surface of the second bearing being engaged with the annular groove of the fixed sleeve.

[0008] Preferably, the bottom of the sliding sleeve is threaded with a positioning bolt, and the bottom of the guide rod is provided with a groove that matches the positioning bolt.

[0009] This utility model has the following beneficial effects: This device simplifies assembly and disassembly by placing the first bearing on the surface of the air shaft and rotating rod directly into the U-shaped support block and quickly locking it with limit bolts, thus improving roll-changing efficiency. Utilizing a magnetic powder brake and the meshing transmission of the second and third gears, it can precisely and smoothly control the unwinding tension of the air shaft, ensuring constant tension during material transport and preventing wrinkles or stretching deformation caused by speed fluctuations. Simultaneously, rotating the first handwheel drives the threaded rod to rotate, causing the threaded block to drive the slider to slide precisely along the guide rail. The slider, through the cooperation of the universal joint and the air shaft, enables flexible adjustment of the longitudinal angle of the air shaft, effectively adapting to uneven tension on both sides of the material and promptly correcting deviation, thereby significantly improving the alignment accuracy of the material during composite hot pressing. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is an exploded view of a partial structure of this utility model; Figure 3 This is an exploded view of a partial structure of this utility model; Figure 4 This is a partial three-dimensional structural view of the present invention; Figure 5 This is an exploded view of a partial structure of this utility model.

[0011] Reference numerals: 1. Support frame; 2. Magnetic powder brake; 3. First gear; 4. Second gear; 5. Guide rail; 6. Slider; 7. Threaded rod; 8. Threaded block; 9. U-shaped support block; 10. Limit bolt; 11. Air shaft; 12. Universal joint; 13. Rotating rod; 14. First bearing; 15. Third gear; 16. First handwheel; 17. Fixing sleeve; 18. Side plate; 19. Guide rod; 20. Threaded shaft; 21. Second handwheel; 22. Sliding sleeve; 23. Positioning bolt; 24. Slide groove; 25. Support rod; 26. Second bearing; 27. Swing arm; 28. Mounting bracket; 29. ​​Roller. Detailed Implementation

[0012] The present invention will be further described in detail below with reference to the accompanying drawings.

[0013] Example 1: refer to Figure 1-5 An adjustable unwinding device includes a support frame 1. A magnetic powder brake 2 is bolted to one side of the support frame 1. The magnetic powder brake 2 is a mature existing technology. The unwinding tension is precisely controlled by a controller, and its working principle will not be elaborated here. A first gear 3 is fixedly connected to one end of the magnetic powder brake 2. A second gear 4 is rotatably connected to one side of the support frame 1. The surface of the first gear 3 meshes with the second gear 4 through teeth. A guide rail 5 is fixedly connected to the top of the support frame 1. A slider 6 is slidably connected to the top of the guide rail 5. A threaded rod 7 is rotatably connected inside the slider 6. A first handwheel 16 is fixedly connected to one end of the threaded rod 7. The top of the guide rail 5... A threaded block 8 is fixedly connected, and the inside of the threaded block 8 is threadedly connected to the threaded rod 7. A U-shaped support block 9 is fixedly connected to the top of both the support frame 1 and the slider 6. A limit bolt 10 is threadedly connected to the back of the U-shaped support block 9. An air shaft 11 is provided on the top of the support frame 1. A universal joint 12 is bolted to one end of the air shaft 11, and a rotating rod 13 is bolted to the other end of the universal joint 12. A first bearing 14 is slidably sleeved on the surfaces of the rotating rod 13 and the air shaft 11. The first bearing 14 is placed inside the U-shaped support block 9. A third gear 15 is fixedly sleeved on the surface of the rotating rod 13. The surface of the third gear 15 meshes with the second gear 4 through its teeth.

[0014] Specifically, the device simplifies assembly and disassembly operations and improves roll changing efficiency by placing the first bearing 14 on the surface of the air shaft 11 and rotating rod 13 directly into the U-shaped support block 9 and quickly locking it with the limiting bolt 10. The magnetic powder brake 2, the second gear 4 and the third gear 15 mesh to drive the transmission, which can accurately and smoothly control the unwinding tension of the air shaft 11, ensuring constant tension during material conveying and avoiding wrinkles or stretching deformation caused by speed fluctuations. At the same time, rotating the first handwheel 16 drives the threaded rod 7 to rotate, so that the threaded block 8 drives the slider 6 to slide precisely along the guide rail 5. The slider 6 then cooperates with the air shaft 11 through the universal joint 12 to achieve flexible adjustment of the longitudinal angle of the air shaft 11. It can effectively adapt to the working conditions of uneven tension on the left and right sides of the material, correct the deviation phenomenon in time, and thus significantly improve the alignment accuracy of the material during the composite hot pressing process.

[0015] refer to Figure 2 The inner side of the support frame 1 is rotatably connected to a swing arm 27, and the top of the swing arm 27 is rotatably connected to a mounting frame 28. The top of the mounting frame 28 is rotatably connected to two rollers 29. By rotating the swing arm 27 and the mounting frame 28, the swing arm can closely follow the air shaft 11 to adjust and swing, so that the rollers 29 can stably support the air shaft 11 and rotate in coordination with the air shaft 11.

[0016] refer to Figure 4 and Figure 5 One end of the air shaft 11 is fixedly sleeved with a fixed sleeve 17. A side plate 18 is fixedly connected to one side of the slider 6. A guide rod 19 is bolted to one side of the side plate 18. The other end of the guide rod 19 is rotatably connected to a threaded shaft 20. The other end of the threaded shaft 20 is fixedly connected to a second handwheel 21. A sliding sleeve 22 is slidably sleeved on the surface of the guide rod 19. One end of the sliding sleeve 22 is threadedly connected to the threaded shaft 20. A support rod 25 is fixedly connected to the top of the sliding sleeve 22. A second bearing 26 is rotatably connected to the top of the support rod 25. The surface of the second bearing 26 is engaged in the annular groove of the fixed sleeve 17. The bottom is threaded with a positioning bolt 23. The bottom of the guide rod 19 is provided with a groove 24 that matches the positioning bolt 23. By rotating the second handwheel 21, the threaded shaft 20 is rotated, which causes the threaded shaft 20 to drive the sliding sleeve 22 to slide on the surface of the guide rod 19. The sliding sleeve 22 drives the positioning bolt 23 to slide in the groove 24. At the same time, the sliding sleeve 22 drives the fixed sleeve 17 to move through the support rod 25 and the second bearing 26, which causes the fixed sleeve 17 to drive the air shaft 11 and the rotating rod 13 to move laterally for adjustment. This also facilitates the lateral adjustment of the material wound by the air shaft 11.

[0017] Brief description of the usage process: When the material is hot-pressed, the first bearing 14 on the surface of the air shaft 11 and the rotating rod 13 is placed inside the U-shaped support block 9. The limit bolt 10 is turned to limit the first bearing 14. The material is unwound through the air shaft 11. The unwinding tension of the air shaft 11 is controlled by the magnetic powder brake 2, the second gear 4 and the third gear 15. The first handwheel 16 is turned to drive the threaded rod 7 to rotate. The threaded rod 7 drives the slider 6 to slide on the top of the guide rail 5 through the threaded block 8. The slider 6 adjusts the longitudinal angle of one end of the air shaft 11 through the cooperation of the universal joint 12, and it is convenient to adjust according to the different tensions on the left and right sides of the material.

[0018] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. An unwinding device with adjustable function, comprising a support frame (1), characterized in that: A magnetic powder brake (2) is bolted to one side of the support frame (1). A first gear (3) is fixedly connected to one end of the magnetic powder brake (2). A second gear (4) is rotatably connected to one side of the support frame (1). The surface of the first gear (3) meshes with the second gear (4) through teeth. A guide rail (5) is fixedly connected to the top of the support frame (1). A slider (6) is slidably connected to the top of the guide rail (5). A threaded rod (7) is rotatably connected inside the slider (6). A first handwheel (16) is fixedly connected to one end of the threaded rod (7). A threaded block (8) is fixedly connected to the top of the guide rail (5). The inside of the threaded block (8) is threadedly connected to the threaded rod (7). The top of the support frame (1) and the slider (6) are both fixedly connected to a U-shaped support block (9). The back of the U-shaped support block (9) is threaded with a limit bolt (10). The top of the support frame (1) is provided with an air shaft (11). One end of the air shaft (11) is bolted with a universal joint (12). The other end of the universal joint (12) is bolted with a rotating rod (13). The surfaces of the rotating rod (13) and the air shaft (11) are both slidably fitted with a first bearing (14). The first bearing (14) is placed inside the U-shaped support block (9). The surface of the rotating rod (13) is fixedly fitted with a third gear (15). The surface of the third gear (15) meshes with the second gear (4) through its teeth.

2. The unwinding device with adjustment function according to claim 1, characterized in that: The inner side of the support frame (1) is rotatably connected to a swing arm (27), the top of the swing arm (27) is rotatably connected to a mounting frame (28), and the top of the mounting frame (28) is rotatably connected to two rollers (29).

3. The unwinding device with adjustment function according to claim 1, characterized in that: One end of the air shaft (11) is fixedly sleeved with a fixed sleeve (17). One side of the slider (6) is fixedly connected with a side plate (18). One side of the side plate (18) is bolted with a guide rod (19). The other end of the guide rod (19) is rotatably connected with a threaded shaft (20). The other end of the threaded shaft (20) is fixedly connected with a second handwheel (21). The surface of the guide rod (19) is slidably sleeved with a sliding sleeve (22). One end of the sliding sleeve (22) is threadedly connected to the threaded shaft (20). The top of the sliding sleeve (22) is fixedly connected with a support rod (25). The top of the support rod (25) is rotatably connected with a second bearing (26). The surface of the second bearing (26) is inserted into the annular groove of the fixed sleeve (17).

4. The unwinding device with adjustment function according to claim 3, characterized in that: The bottom of the sliding sleeve (22) is threaded with a positioning bolt (23), and the bottom of the guide rod (19) is provided with a groove (24) that matches the positioning bolt (23).

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