A winding device for setting a mandrel

Abstract

The application provides a winding device for a sleeve core shaft, comprising a main shaft, a driving assembly and a plurality of positioning assemblies, wherein the driving assembly and the positioning assemblies are arranged in the main shaft respectively, the driving assembly is provided with an extension part which extends to the outside of the main shaft and drives the core shaft to move along the main shaft axially, and the positioning assembly moves along the main shaft axially and extends to the outside of the main shaft to limit the core shaft axially. The application solves the problem that the sleeve core shaft cannot move and position axially automatically after being sleeved on the winding shaft, and improves the work efficiency.

Description

Technical Field

[0001] This invention relates to the field of film production technology, and in particular to a winding device with a mandrel attached. Background Technology

[0002] After production, flexible roll materials need to be cut into different widths according to customer requirements. After cutting, the roll materials are wound on different mandrels of the winding machine. In the existing technology, the slitting machine generally uses two parallel winding shafts, so that the cut roll materials are wound on the mandrels at different positions in sequence, so that there are gaps between the mandrels for better winding.

[0003] When the mandrel has been wound with enough roll material, it needs to be replaced. Generally, it is done manually to load the new mandrel and adjust its position to correspond to the position of the cut roll material strip. Sometimes the diameter of the mandrel is large and the mandrel needs to be replaced frequently. Using manual labor is inefficient and it is not easy to align the mandrel with the roll material strip, which affects the product quality. Therefore, further improvements to the winding device are needed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a winding device for mounting a mandrel, which solves the problem in existing technologies that the mandrel cannot automatically move axially and be positioned after being mounted on the winding shaft.

[0005] According to an embodiment of the present invention, a winding device for sleeved mandrel includes a main shaft, a drive assembly and a plurality of positioning assemblies. The drive assembly and the positioning assemblies are respectively disposed inside the main shaft. The drive assembly is provided with an extension portion that extends to the outside of the main shaft and drives the mandrel to move axially along the main shaft. The positioning assemblies move axially along the main shaft and extend to the outside of the main shaft to axially limit the mandrel.

[0006] The technical principle of this invention is as follows: the drive component causes the mandrel sleeved on the main shaft to move axially along the main shaft, the positioning component axially positions the mandrels that move sequentially, and adjusts the axial position of the mandrels on the main shaft so that they correspond to the strips of roll material being cut.

[0007] Preferably, the drive assembly includes a conveyor belt, several rollers, several support frames, and several springs. The rollers are arranged side-by-side along the axial direction of the main shaft, with the roller axes parallel to the tangent of the main shaft. The support frame has a Y-shaped structure, with the two ends of the Y-shaped structure's fork rotatably connected to the ends of the rollers, and the straight section of the Y-shaped structure slidably connected to the main shaft, with the sliding direction perpendicular to the main shaft axis. The conveyor belt is sleeved on the rollers, with a portion of the conveyor belt protruding outside the main shaft. The springs are coaxially arranged with the straight sections of the support frames, with one end of the spring fixedly connected to the support frame and the other end of the spring fixedly connected to the main shaft. A first motor is connected to the rollers at the ends of the main shaft.

[0008] Preferably, the positioning assembly includes a sliding frame, a first sliding rod, a second sliding rod, a drive unit, a sensor, a second motor, and a controller. The sliding frame is an elongated structure parallel to the main shaft and is slidably connected to the main shaft. The first and second sliding rods are parallel to each other and spaced apart. The first and second sliding rods are slidably connected to the sliding frame, with the sliding direction perpendicular to the main shaft axis. The ends of the first and second sliding rods are movable outside the main shaft. The drive unit causes the first and second sliding rods to move relative to the sliding frame. The sensor is fixedly mounted on the sliding frame and detects the outside of the main shaft. The second motor is fixedly connected to the sliding frame and drives the sliding frame to move. The controller, second motor, drive unit, and sensor are electrically connected.

[0009] Preferably, the drive unit includes a third motor and a fourth motor, which are fixedly mounted on the sliding frame and drive the first sliding rod and the second sliding rod to slide, respectively.

[0010] Preferably, the positioning assembly further includes a fifth motor and an adjusting seat, the adjusting seat and the sliding frame being slidably connected; the second sliding rod and the adjusting seat being slidably connected; and the fifth motor driving the adjusting seat to slide on the sliding frame.

[0011] Preferably, a conductive slip ring is provided at the end of the spindle, and the first motor, second motor, third motor, fourth motor, fifth motor, sensor and conductive slip ring are electrically connected.

[0012] Preferably, the sensor is a contact sensor.

[0013] Compared to existing technologies, this invention has the following advantages: After the mandrel is sequentially sleeved on the main shaft, it is driven by the drive assembly to move axially. When the mandrel size is extremely large, it avoids the physical burden on workers caused by manual operation. When the mandrel moves to the corresponding position, the positioning assembly axially positions the mandrel to prevent it from moving axially relative to the main shaft. Furthermore, when the roll material is cut into different sizes, the positioning assembly can automatically adjust the axial position of the mandrel on the main shaft. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram showing the positions of the positioning component and the driving component in an embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the positioning component structure according to an embodiment of the present invention.

[0017] Figure 4 This is a schematic diagram of the first and second sliding rod driving structures according to an embodiment of the present invention.

[0018] Figure 5 This is a schematic diagram of the first motor connection according to an embodiment of the present invention.

[0019] In the above figures: 1. Main shaft; 2. First sliding rod; 3. Second sliding rod; 4. Sliding frame; 5. Adjusting seat; 6. Sensor; 7. Conveyor belt; 8. Roller; 9. Support frame; 10. Spring; 11. First motor; 12. Second motor; 13. Third motor; 14. Fourth motor; 15. Fifth motor; 16. Guide rail; 17. Sleeve; 18. Gear; 19. Drive assembly; 20. Positioning assembly; 21. First chamber; 22. Second chamber; 23. Mandrel; 24. Third chamber; 25. Conductive slip ring. Detailed Implementation

[0020] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] like Figure 1As shown in the figure, this embodiment of the invention proposes a winding device for mounting a mandrel, including a main shaft 1, a drive assembly 19, and several positioning assemblies 20. The drive assembly 19 and the positioning assemblies 20 are respectively disposed inside the main shaft 1. The drive assembly 19 is provided with an extension that extends to the outside of the main shaft 1, and the extension drives the mandrel 23 to move axially along the main shaft 1. The positioning assemblies 20 move axially along the main shaft 1 and extend to the outside of the main shaft 1 to axially limit the mandrel 23. In this example, three sets of positioning assemblies 20 can be provided, evenly distributed relative to the axial direction of the main shaft 1. When replacing the mandrel 23, a robotic arm can be used to mount the mandrel 23 onto the main shaft 1. At this time, the main shaft 1 is in a non-rotating state. Before replacement, the drive assembly 19 is rotated to the top position of the main shaft 1 to facilitate contact between the drive assembly 19 and the mandrel 23 and enhance friction. Generally, a pneumatic tensioning device is also provided inside the main shaft 1 to fix the mandrel 23 and the main shaft 1 relatively. After the spindle 23 moves to the corresponding position, the operator then activates the tensioning device. No technical improvements have been made to the tensioning device in this invention, therefore it will not be described in detail here. In this example, the spindle 1 is internally provided with a first chamber 21, a second chamber 22, and a third chamber 24. The drive assembly 19 and the positioning assembly 20 are respectively located in the first chamber 21 and the second chamber 22, while the tensioning device is located in the third chamber 24 to avoid interference between the tensioning device and the drive assembly 19 and the positioning assembly 20.

[0022] like Figure 1 As shown, preferably, the drive assembly 19 includes a conveyor belt 7, several rollers 8, several support frames 9, and several springs 10. The rollers 8 are arranged side by side along the axial direction of the main shaft 1, and the axes of the rollers 8 are tangent and parallel to the main shaft 1. The support frame 9 has a Y-shaped structure, with the two ends of the fork of the Y-shaped structure rotatably connected to the ends of the rollers 8, and the straight section of the Y-shaped structure slidably connected to the main shaft 1, with the sliding direction perpendicular to the axis of the main shaft 1. The conveyor belt 7 is sleeved on the rollers 8, and a portion of the conveyor belt 7 protrudes outside the main shaft 1. The springs 10 and the straight section of the support frame 9 are coaxially arranged, with one end of the spring 10 fixedly connected to the support frame 9 and the other end of the spring 10 fixedly connected to the main shaft 1. Figure 5As shown, the roller 8 at the end of the main shaft 1 is connected to a first motor 11. The roller 8 has an open cavity at one end. The first motor 11 is rotatably mounted in the cavity. The tail of the first motor 11 passes through the cavity opening and is fixedly connected to one of the forks of the Y-shaped structure. The rotating shaft of the first motor 11 passes through the roller 8 and is fixedly connected to it. The rotating shaft of the first motor 11 is rotatably connected to the other fork. This allows both rollers 8 at both ends of the main shaft 1 to be connected to the first motor 11, improving driving capability. In this example, only a portion of the conveyor belt 7 and roller 8 protrude outside the main shaft 1, ensuring sufficient friction between the conveyor belt 7 and the inner hole of the spindle 23. The conveyor belt 7 causes the spindle 23, which is sleeved on the main shaft 1, to move axially along the main shaft 1.

[0023] like Figure 3 , 4 As shown, preferably, the positioning assembly 20 includes a sliding frame 4, a first sliding rod 2, a second sliding rod 3, a drive unit, a sensor 6, a second motor 12, and a controller. The sliding frame 4 is a long strip structure parallel to the main shaft 1, and its length is equal to the width of the roll material. The sliding frame 4 is slidably connected to the main shaft 1. In this example, a guide rail 16 is provided inside the main shaft 1. The guide rail 16 has a T-shaped cross-section and is parallel to the axis of the main shaft 1. The sliding frame 4 is provided with a T-shaped groove, and the sliding frame 4 and the guide rail 16 are slidably engaged. The first sliding rod 2 and the second sliding rod 3 are parallel to each other and spaced apart, with the space corresponding to the length of the mandrel 23. The first sliding rod 2 and the second sliding rod 3 are slidably connected to the sliding frame 4, and the sliding direction is perpendicular to the axis of the main shaft 1. The ends of the first sliding rod 2 and the second sliding rod 3 can move to the outside of the main shaft 1. When the ends of the first sliding rod 2 and the second sliding rod 3 extend to the outside of the main shaft 1, they abut against the two ends of the mandrel 23, thereby restricting the axial movement of the mandrel 23. The drive unit causes the first sliding rod 2 and the second sliding rod 3 to move relative to the sliding frame 4. The sensor 6 is fixedly mounted on the sliding frame 4 and detects the outside of the main shaft 1. The second motor 12 is fixedly connected to the sliding frame 4 and drives the sliding frame 4 to move. The controller, the second motor 12, the drive unit, and the sensor 6 are electrically connected. In this example, the sliding frame 4 is provided with two sleeves 17, which are coaxial with the first sliding rod 2 and the second sliding rod 3 respectively, and one end of the sleeve 17 is fixedly connected to the sliding frame 4. A gear is provided on the output shaft of the second motor 12, and a corresponding rack tooth is provided on the guide rail 16, with the gear and the rack tooth meshing.

[0024] After the previously used mandrel 23 is removed, a new mandrel 23 needs to be fitted onto the main shaft 1. The mandrel 23 moves sequentially from one end of the main shaft 1 to the other. During loading, the first sliding rod 2 furthest from the loading end is in a protruding state from the main shaft 1. When the mandrel 23 passes the sliding frame 4 where the first sliding rod 2 is located, the sensor 6 senses it, and the second sliding rod 3 on the sliding frame 4 extends outward. Then, the first sliding rod 2 on the adjacent sliding frame 4 extends outward from the main shaft 1. After the next mandrel 23 passes the corresponding sensor 6, the second sliding rod 3 on the corresponding sliding frame 4 extends outward, and so on.

[0025] like Figure 3 , 4 As shown, preferably, the drive unit includes a third motor 13 and a fourth motor 14. The third motor 13 and the fourth motor 14 are fixedly mounted on the sliding frame 4 and drive the first sliding rod 2 and the second sliding rod 3 to slide, respectively. Gears 18 are provided on the output shafts of the third motor 13 and the fourth motor 14, and toothed racks are provided on the first sliding rod 2 and the second sliding rod 3. The gears 18 and the toothed racks mesh, thereby driving the first sliding rod 2 and the second sliding rod 3 to move when the third motor 13 and the fourth motor 14 rotate. An opening is provided on the sleeve 17 so that the gear 18 enters the sleeve 17 and meshes with the first sliding rod 2 and the second sliding rod 3.

[0026] like Figure 3 As shown, preferably, the positioning assembly 20 further includes a fifth motor 15 and an adjusting seat 5, the adjusting seat 5 and the sliding frame 4 being slidably connected. The second sliding rod 3 is slidably connected to the adjusting seat 5. The fifth motor 15 drives the adjusting seat 5 to slide on the sliding frame 4. A gear is provided on the output shaft of the fifth motor 15, and a rack is provided on the sliding frame 4; the gear and rack mesh. When the lengths of the mandrel 23 are different, the fifth motor 15 can be used to control the distance between the supports of the first sliding rod 2 and the second sliding rod 3, so that the mandrel 23 is precisely locked between the first sliding rod 2 and the second sliding rod 3. The sleeve 17 corresponding to the second sliding rod 3 is also fixed on the adjusting seat 5.

[0027] Preferably, a conductive slip ring 25 is provided at the end of the main shaft 1, and the first motor 11, the second motor 12, the third motor 13, the fourth motor 14, the fifth motor 15, the sensor 6, and the conductive slip ring 25 are electrically connected. The conductive slip ring 25 includes a stator and a rotor, the rotor and the main shaft 1 are coaxial and fixedly connected, and the rotor is connected to an external power source. This allows the positioning assembly 20 to automatically engage with the mandrel 23. When the roll material slitting width changes, the length of the mandrel 23 will change, and the distance between the two positioning assemblies 20 will also change.

[0028] Preferably, the sensor 6 is a contact sensor 6, with the contact head of the contact sensor 6 extending outside the main shaft 1, and the contact sensor 6 is triggered when the spindle 23 passes by.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A winding device with a mandrel sleeve, characterized in that: The assembly includes a main shaft (1), a drive assembly (19), and several positioning assemblies (20). The drive assembly (19) and the positioning assemblies (20) are respectively disposed inside the main shaft (1). The positioning assemblies (20) move axially along the main shaft (1) and extend to the outside of the main shaft (1) to axially limit the spindle (23). The drive assembly (19) includes a conveyor belt (7), several rollers (8), several support frames (9), and several springs (10). The rollers (8) are arranged side by side along the axial direction of the main shaft (1), and the axis of the rollers (8) is parallel to the axis of the support frame (9). The tangent of the main shaft (1) is parallel. The support frame (9) is a Y-shaped structure. The two ends of the Y-shaped structure fork are rotatably connected to the ends of the rollers (8). The straight section of the Y-shaped structure of the support frame (9) is slidably connected to the main shaft (1), and the sliding direction is perpendicular to the axis of the main shaft (1). The conveyor belt (7) is sleeved on the rollers (8), and part of the conveyor belt (7) protrudes to the outside of the main shaft (1). The spring (10) and the straight section of the support frame (9) are coaxially arranged. One end of the spring (10) is fixedly connected to the support frame (9), and the other end of the spring (10) is fixedly connected to the main shaft (1). The roller (8) at the end of the main shaft (1) is connected to a first motor (11); the positioning assembly (20) includes a sliding frame (4), a first sliding rod (2), a second sliding rod (3), a drive unit, a sensor (6), a second motor (12), and a controller. The sliding frame (4) is a long strip structure parallel to the main shaft (1), and the sliding frame (4) is slidably connected to the main shaft (1); the first sliding rod (2) and the second sliding rod (3) are parallel to each other and are spaced apart from each other. The first sliding rod (2) and the second sliding rod (3) are respectively connected to the roller (8) at the end of the main shaft (1). The sliding frame (4) is slidably connected, and the sliding direction is perpendicular to the axis of the main shaft (1). The ends of the first sliding rod (2) and the second sliding rod (3) can be moved to the outside of the main shaft (1). The driving unit causes the first sliding rod (2) and the second sliding rod (3) to move relative to the sliding frame (4). The sensor (6) is fixedly mounted on the sliding frame (4) and detects the outside of the main shaft (1). The second motor (12) is fixedly connected to the sliding frame (4) and drives the sliding frame (4) to move. The controller, the second motor (12), the driving unit, and the sensor (6) are electrically connected.

2. The winding device with a mandrel as described in claim 1, characterized in that: The drive unit includes a third motor (13) and a fourth motor (14). The third motor (13) and the fourth motor (14) are fixedly mounted on the sliding frame (4) and drive the first sliding rod (2) and the second sliding rod (3) to slide respectively.

3. A winding device for sleeved mandrel as described in claim 2, characterized in that: The positioning component (20) also includes a fifth motor (15) and an adjusting seat (5), the adjusting seat (5) and the sliding frame (4) being slidably connected; the second sliding rod (3) and the adjusting seat (5) being slidably connected; the fifth motor (15) drives the adjusting seat (5) to slide on the sliding frame (4).

4. A winding device with a mandrel as described in claim 3, characterized in that: A conductive slip ring (25) is provided at the end of the main shaft (1), and the first motor (11), the second motor (12), the third motor (13), the fourth motor (14), the fifth motor (15), the sensor (6) and the conductive slip ring (25) are electrically connected.

5. A winding device with a mandrel as described in claim 1, characterized in that: The sensor (6) is a contact sensor.

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