A reel-up and down reel adapted to different diameter reels
The automated adjustment of the unwinding roller is achieved through the cylinder-driven inclined transmission assembly and wedge block groove design, which solves the problems of low efficiency and inconsistent accuracy of manual adjustment, and improves the adaptability and ease of operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI JIOU ELECTRIC POWER TECH CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-05-29
AI Technical Summary
The existing method of manually rotating the wire screw to adjust the position of the limit block of the unwinding roller is inefficient, and the adjustment accuracy is easily affected by the operator, resulting in inconsistent fixing and unwinding quality, and it is difficult to adapt to rolls of different diameters.
The linear motion of the moving shaft is driven by a cylinder, and the radial synchronous expansion or contraction of the arc plate is converted by the inclined plane transmission component. Combined with the design of wedge blocks and wedge grooves, the stable synchronous adjustment of the arc plate is achieved, and the winding and unwinding operation of the drum is realized by the rotation of the main shaft driven by the motor.
It improves adjustment efficiency and accuracy, reduces manual intervention, enhances the versatility and flexibility of the equipment, and ensures the stability and precision of the roll winding and unwinding process.
Smart Images
Figure CN224298434U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of take-up and unwind roll technology, specifically a take-up and unwind roll that can adapt to rolls of different diameters. Background Technology
[0002] In many industrial production fields such as roll material processing, packaging, and printing, unwinding rollers are key equipment components that bear the responsibility of supporting and unwinding roll materials. Because the diameter of the roll material used in different production batches and product specifications varies, unwinding rollers need to be able to adapt to rolls of different diameters to ensure the continuity and stability of the production process.
[0003] Chinese utility model patent CN217616922U discloses an adjustable unwinding roller. By rotating the thread-matching screw, two limiting blocks move towards or away from each other, thus fixing and unwinding unwinding drums of different sizes. However, this unwinding roller uses manual rotation of the thread-matching screw to adjust the position of the two limiting blocks, thereby changing the distance between the unwinding plate and the unwinding roller. This manual adjustment method is not only inefficient, but also consumes a lot of time and manpower in production scenarios that require frequent changes of drums of different diameters, affecting production efficiency. Furthermore, the precision of manual adjustment is difficult to guarantee; it depends on the operator's skill level and experience. Different operators may produce inconsistent adjustment results due to differences in operating techniques and force, thus affecting the unwinding roller's fixing effect on the drum and the unwinding quality.
[0004] Therefore, this application provides a take-up and untake-up roller that can adapt to drums of different diameters to solve the above problems. Utility Model Content
[0005] This application provides a take-up and unwinding roller that can adapt to drums of different diameters, aiming to solve the problems mentioned in the background art, such as the low efficiency and the fact that the adjustment accuracy of the existing unwinding roller is easily affected by the operator, resulting in inconsistent results and affecting the fixing and unwinding quality.
[0006] To achieve the above objectives, this application provides the following technical solution: a take-up and unwinding roller adaptable to drums of different diameters, comprising a base, a main shaft rotatably connected to the base, a fixed plate fixedly sleeved on the main shaft, four arc-shaped plates disposed on the fixed plate away from the main shaft and sliding radially along the fixed plate, and an adjustment structure disposed on the base and the main shaft;
[0007] The adjustment structure includes a movable shaft disposed inside the four arc-shaped plates, a cylinder fixedly installed on the side of the base away from the main shaft for driving the movable shaft to move, and an inclined plane transmission assembly disposed between the four arc-shaped plates and the movable shaft for causing the four arc-shaped plates to expand or contract synchronously in the radial direction as they move with the movable shaft. The piston rod of the cylinder passes through the main shaft and is fixedly connected to the movable shaft. By driving the movable shaft to perform linear motion through the cylinder, and then using the inclined plane transmission assembly to convert the linear motion of the movable shaft into the radial synchronous expansion or contraction of the four arc-shaped plates, this electric adjustment method significantly improves the adjustment efficiency, reduces manual intervention, and makes the operation simpler and faster.
[0008] Preferably, in order to achieve synchronous expansion or contraction of the four arc-shaped plates to accommodate drums of different diameters, the inclined plane transmission assembly includes four wedge blocks fixedly disposed on the outside of the moving shaft and corresponding to the four arc-shaped plates, and wedge grooves fixedly installed on the side of the arc-shaped plates near the moving shaft for the wedge blocks to slide at an inclination. With this design, when the moving shaft moves, the wedge blocks slide at an inclination within the wedge grooves, which can push the arc-shaped plates to expand or contract radially. This design achieves synchronous adjustment of the arc-shaped plates, improves adjustment efficiency and accuracy, and enables the take-up and untake-off rollers to adapt to drums of different diameters, enhancing the versatility and flexibility of the equipment.
[0009] Preferably, to ensure the stability of the curved plate's movement, a guide block is fixedly installed on the side of the curved plate near the fixed plate. The fixed plate has a guide groove for the guide block to slide and guide. The combined design of the guide groove and the guide block allows the guide block to slide and guide along the guide groove when the curved plate moves. This design restricts the direction of movement of the curved plate, allowing it to move radially only along the direction of the guide groove, thereby ensuring the stability of the movement and improving the stability of the curved plate's movement. This makes the winding and unwinding process of the drum smoother and more accurate, improving the overall performance and reliability of the equipment.
[0010] Preferably, to prevent the guide block from detaching from the guide groove, a stop block is fixedly installed on the guide block. The stop block is located on the side of the guide groove away from the arc-shaped plate, and the width of the stop block is greater than the width of the guide groove. With this design, when the guide block moves along the guide groove to near the end of the guide groove, the stop block will abut against the edge of the guide groove, thereby preventing the guide block from continuing to move and detaching from the guide groove. This prevents the guide block from detaching from the guide groove during movement and ensures the stability and safety of the arc-shaped plate movement.
[0011] Preferably, in order to drive the main shaft and enable the take-up and untake-up rollers to perform take-up and untake-up operations, the take-up and untake-up rollers further include a drive assembly mounted on the machine base for rotating the main shaft; the drive assembly is connected to the main shaft and provides rotational power, thereby enabling the main shaft to rotate.
[0012] Preferably, to facilitate the driving of the spindle, the drive assembly includes a connecting bevel gear disposed within the machine base and fixedly sleeved on the spindle, a drive bevel gear passing through the machine base and rotatably connected to the machine base, a drive shaft fixedly sleeved on the drive shaft and meshing with the connecting bevel gear, and a motor fixedly mounted on the machine base for driving the drive shaft to rotate; the spindle can be rotated by the motor driving the drive shaft to rotate, and then by the drive shaft driving the drive bevel gear to rotate, and then by the meshing relationship driving the connecting bevel gear to rotate.
[0013] The take-up and untake-up rollers, which can adapt to drums of different diameters, are driven by a cylinder to make linear motion of the moving shaft. Then, the linear motion of the moving shaft is converted into the radial synchronous expansion or contraction of four arc plates by the inclined plane transmission component. This electric adjustment method significantly improves the adjustment efficiency, reduces manual intervention, and makes the operation simpler and faster.
[0014] This take-up and unwind roll, adaptable to drums of different diameters, uses a sloped transmission assembly composed of wedge blocks and wedge grooves to ensure that minute movements of the moving shaft can be converted into radial displacement of the arc plate, thereby improving adjustment efficiency and accuracy. This allows the take-up and unwind roll to adapt to drums of different diameters, enhancing the versatility and flexibility of the equipment. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of a take-up and unwinding roller that can adapt to drums of different diameters;
[0016] Figure 2 This is a cross-sectional structural diagram of a take-up and unwinding roller that can adapt to drums of different diameters;
[0017] Figure 3 This is a cross-sectional view of the main shaft in a take-up and unwinding roller that can adapt to drums of different diameters.
[0018] Figure 4 This is a cross-sectional schematic diagram of an adjustment structure in a take-up and unwinding roller that can adapt to drums of different diameters.
[0019] In the picture:
[0020] 1. Base;
[0021] 2. Spindle;
[0022] 3. Fixing plate; 31. Guide groove;
[0023] 4. Curved plate; 41. Guide block; 42. Stop block;
[0024] 5. Adjustment structure; 51. Moving shaft; 52. Inclined plane transmission assembly; 521. Wedge block; 522. Wedge groove; 53. Cylinder;
[0025] 6. Drive assembly; 61. Connecting bevel gear; 62. Drive bevel gear; 63. Drive shaft; 64. Motor. Detailed Implementation
[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0027] This embodiment provides a take-up and untake-up roller that can adapt to drums of different diameters, such as... Figures 1-4 As shown, the take-up and unwinding roller includes a base 1, a main shaft 2 rotatably connected to the base 1, a fixed plate 3 fixedly sleeved on the main shaft 2, four arc-shaped plates 4 disposed on the side of the fixed plate 3 away from the main shaft 2 and sliding radially along the fixed plate 3, and an adjustment structure 5 disposed on the base 1 and the main shaft 2; the adjustment structure 5 includes a moving shaft 51 disposed on the inner side of the four arc-shaped plates 4, a cylinder 53 fixedly installed on the side of the base 1 away from the main shaft 2 for driving the moving shaft 51 to move, and an inclined plane transmission assembly 52 disposed between the four arc-shaped plates 4 and the moving shaft 51 for moving with the moving shaft 51 to synchronously expand or contract the four arc-shaped plates 4 radially. The piston rod of the cylinder 53 passes through the main shaft 2 and is fixedly connected to the moving shaft 51.
[0028] When in use, if it is necessary to adapt to drums of different diameters, first start the cylinder 53. Since the piston rod of the cylinder 53 passes through the main shaft 2 and is fixedly connected to the moving shaft 51, the extension and retraction of the piston rod of the cylinder 53 will drive the moving shaft 51 to move linearly inside the four arc plates 4. At this time, the inclined plane transmission assembly 52 set between the four arc plates 4 and the moving shaft 51 begins to play its role. It uses the inclined plane cooperation principle to convert the linear motion of the moving shaft 51 into the synchronous expansion or contraction motion of the four arc plates 4 along the radial direction of the fixed plate 3 to adapt to drums of different diameters.
[0029] Specifically, the inclined plane transmission assembly 52 includes four wedge blocks 521 fixedly disposed on the outside of the moving shaft 51 and corresponding to the four arc plates 4, and a wedge groove 522 fixedly disposed on the side of the arc plate 4 near the moving shaft 51 for allowing the wedge blocks 521 to slide at an inclination.
[0030] When the arc plate 4 needs to be adjusted to accommodate drums of different diameters, the cylinder 53 is activated to drive the moving shaft 51 to move linearly. Since the wedge block 521 is fixed on the outside of the moving shaft 51, it will move along with the moving shaft 51. When the wedge block 521 moves, its inclined surface will slide relative to the inclined surface of the wedge groove 522 on the arc plate 4. According to the principle of inclined plane transmission, this relative sliding will generate a radial component force along the arc plate 4, pushing the arc plate 4 to move radially along the fixed plate 3. When the moving shaft 51 moves towards the fixed plate 3, the inclined surface of the wedge block 521 will squeeze the inclined surface of the wedge groove 522, causing the arc plate 4 to expand outward, thereby increasing the diameter of the take-up and unwinding rollers to accommodate drums of larger diameters. When the moving shaft 51 moves towards the fixed plate 3, the squeezing effect between the wedge block 521 and the wedge groove 522 weakens, and the arc plate 4 contracts inward under its own weight, reducing the diameter of the take-up and unwinding rollers to accommodate drums of smaller diameters.
[0031] To ensure the stability of the movement of the arc plate 4, a guide block 41 is fixedly installed on the side of the arc plate 4 near the fixed plate 3. The fixed plate 3 has a guide groove 31 for the guide block 41 to slide and guide. The combination design of the guide groove 31 and the guide block 41 allows the guide block 41 to slide and guide along the guide groove 31 when the arc plate 4 is moving. This design restricts the direction of movement of the arc plate 4, making it only able to move radially along the direction of the guide groove 31, thereby ensuring the stability of the movement and improving the stability of the movement of the arc plate 4. This makes the winding and unwinding process of the drum smoother and more accurate, and improves the overall performance and reliability of the equipment.
[0032] In addition, to prevent the guide block 41 from detaching from the guide groove 31, a stop block 42 is fixedly installed on the guide block 41. The stop block 42 is located on the side of the guide groove 31 away from the arc plate 4, and the width of the stop block 42 is greater than the width of the guide groove 31. With this design, when the guide block 41 moves along the guide groove 31 to near the end of the guide groove 31, the stop block 42 will abut against the edge of the guide groove 31, thereby preventing the guide block 41 from continuing to move and detaching from the guide groove 31. This prevents the guide block 41 from detaching from the guide groove 31 during movement, ensuring the stability and safety of the movement of the arc plate 4.
[0033] Furthermore, the take-up and unwinding rollers also include a drive assembly 6 mounted on the base 1 for rotating the main shaft 2. The drive assembly 6 includes a connecting bevel gear 61 mounted inside the base 1 and fixedly sleeved on the main shaft 2, a drive bevel gear 62 fixedly sleeved on the drive shaft 63 and meshing with the connecting bevel gear 61, a drive shaft 63 passing through the base 1 and rotatably connected to the base 1, and a motor 64 fixedly mounted on the base 1 for driving the drive shaft 63 to rotate.
[0034] When the winding and unwinding operation of the drum is required, the motor 64 is started. The motor 64 drives the drive shaft 63 to rotate on the machine base 1. At this time, the drive bevel gear 62, which is fixedly sleeved on the drive shaft 63, rotates synchronously. Since the drive bevel gear 62 and the connecting bevel gear 61 mesh with each other, according to the bevel meshing transmission action, the rotation of the drive bevel gear 62 will drive the connecting bevel gear 61 to rotate, thereby transmitting power to the main shaft 2, causing the main shaft 2 to rotate on the machine base 1. After the main shaft 2 rotates, it drives the fixed plate 3, which is fixedly sleeved on it, and the four radially sliding arc plates 4 to rotate together. When the arc plates 4 have been adjusted to the position that adapts to the current drum diameter by the adjustment structure 5, the rotating arc plates 4 can stably support the drum and drive the drum to rotate, thereby realizing the winding and unwinding operation of the drum.
[0035] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.
Claims
1. A take-up and unwinding roller adaptable to drums of different diameters, comprising a base (1), a main shaft (2) rotatably connected to the base (1), a fixing plate (3) fixedly sleeved on the main shaft (2), four arc-shaped plates (4) disposed on the side of the fixing plate (3) away from the main shaft (2) and sliding radially along the fixing plate (3), and an adjustment structure (5) disposed on the base (1) and the main shaft (2); Its features are: The adjustment structure (5) includes a movable shaft (51) disposed inside the four arc-shaped plates (4), a cylinder (53) fixedly installed on the side of the base (1) away from the main shaft (2) for driving the movable shaft (51) to move, and an inclined plane transmission assembly (52) disposed between the four arc-shaped plates (4) and the movable shaft (51) for moving with the movable shaft (51) to make the four arc-shaped plates (4) expand or contract synchronously in the radial direction. The piston rod of the cylinder (53) passes through the main shaft (2) and is fixedly connected to the movable shaft (51).
2. The take-up and unwinding roller adaptable to drums of different diameters according to claim 1, characterized in that: The inclined plane transmission assembly (52) includes four wedge blocks (521) fixedly disposed on the outside of the moving shaft (51) and corresponding to the four arc plates (4), and a wedge groove (522) fixedly installed on the side of the arc plate (4) near the moving shaft (51) for the wedge blocks (521) to slide at an inclination.
3. The take-up and unwinding roller adaptable to drums of different diameters according to claim 2, characterized in that: A guide block (41) is fixedly installed on the side of the arc plate (4) near the fixed plate (3), and a guide groove (31) is provided on the fixed plate (3) for the guide block (41) to slide and guide.
4. The take-up and unwinding roller adaptable to drums of different diameters according to claim 3, characterized in that: A stop block (42) is fixedly installed on the guide block (41). The stop block (42) is located on the side of the guide groove (31) away from the arc plate (4), and the width of the stop block (42) is greater than the width of the guide groove (31).
5. The take-up and unwinding roller adaptable to drums of different diameters according to claim 1, characterized in that: The take-up and untake-down rollers also include a drive assembly (6) mounted on the base (1) for rotating the main shaft (2).
6. The take-up and unwinding roller adaptable to drums of different diameters according to claim 5, characterized in that: The drive assembly (6) includes a connecting bevel gear (61) disposed in the base (1) and fixedly sleeved on the main shaft (2), a drive bevel gear (62) passing through the base (1) and rotatably connected to the base (1), a drive shaft (63) fixedly sleeved on the drive shaft (63) and meshing with the connecting bevel gear (61), and a motor (64) fixedly mounted on the base (1) for driving the drive shaft (63) to rotate.