High-stability precise winding and unwinding device

Abstract

The utility model discloses a high-stability precise receiving and unwinding device, brackets of an unwinding part and a receiving part of the high-stability precise receiving and unwinding device are connected to a rack in a left-right moving manner and are arranged in a linkage manner, a linkage device for pushing the two brackets to synchronously move left and right is further arranged at the joint of the two brackets, and a swing arm frame is connected to the top of the receiving part in a front-back moving manner; a pair of swing arms and a second driving mechanism for driving the swing arms to move are arranged on the swing arm frame, an approaching roller is rotationally connected between the two swing arms, a third driving mechanism for driving the swing arm frame to move front and back is further arranged on the roll receiving part, and a first cutter mechanism and a second cutter mechanism which are arranged corresponding to an A shaft and a B shaft of the unwinding part are arranged on the unwinding part. The overall layout and structure of the winding and unwinding device are optimized, and the winding and unwinding device can better adapt to changes of the winding diameter and the width of a coiled material.

Description

Technical Field

[0001] This utility model relates to a highly stable precision winding and unwinding device. Background Technology

[0002] In existing unwinding and rewinding devices, the unwinding section and the rewinding section are fixed on the frame. When changing to rolls with different diameters and widths, the rolls need to be adjusted in position via a linkage device to avoid asymmetry between the rolls and the roll width. The precision required for this position adjustment is high, which brings inconvenience to continuous production. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a highly stable and precise unwinding and rewinding device, which optimizes the overall layout and structure of the unwinding and rewinding device and can better adapt to changes in the diameter and width of the roll material.

[0004] The technical solution of this utility model is: a high-stability precision unwinding and rewinding device, including a frame and an unwinding part and a rewinding part arranged on the frame. The supports of the unwinding part and the rewinding part are both movably connected to the frame and linked together. A linkage device is also provided at the connection of the two supports. The linkage device pushes the two supports to move synchronously left and right.

[0005] The top of the receiving section is connected to a swing arm frame that moves back and forth. The swing arm frame is equipped with a pair of swing arms and a second drive mechanism that drives the swing arms to move. A proximity roller is rotatably connected between the two swing arms. The proximity roller is driven to rotate by a first drive motor. The receiving section is also equipped with a third drive mechanism that drives the swing arm frame to move back and forth. The second drive mechanism and the third drive mechanism cooperate to ensure that the proximity roller always abuts against the roll material on the unwinding section.

[0006] The unwinding section is equipped with a cutting device, which consists of a first cutting mechanism and a second cutting mechanism. The first cutting mechanism and the second cutting mechanism are respectively set to the A and B axes of the unwinding section.

[0007] Specifically, the linkage device is a actuator.

[0008] Specifically, the second drive mechanism is a low-friction cylinder.

[0009] Specifically, the third drive mechanism consists of a movable seat movably connected to the top of the receiving section and a reducer equipped with a servo motor disposed in the receiving section. The bottom of the movable seat is provided with a rack, and the output shaft of the reducer is provided with a gear corresponding to the rack, and the gear meshes with the rack.

[0010] Furthermore, the frame is provided with guide rails corresponding to the two supports, and the bottom of each of the two supports is provided with a slider, which is matched on the corresponding guide rail.

[0011] Furthermore, the A and B axes of the unwinding section are driven by servo motors equipped with encoders.

[0012] The beneficial effects of this utility model are: when the roll position needs to be adjusted, the linkage device moves the unwinding part and the rewinding part at the same time, which can avoid the asymmetry between the roller and the roll width, thereby improving the success rate of paper splicing when changing the roll.

[0013] The second and third drive mechanisms work together to ensure that the proximity roller always abuts against the roll material on the unwinding section, so as to ensure that the proximity roller works stably when the roll diameter decreases during roll material replacement and unwinding.

[0014] The cutting device has been moved from the receiving section to the unwinding section, which increases the utilization rate of old rolls when replacing them on the A and B axes of the unwinding section, simplifies the structure of the receiving section, and provides sufficient installation space for the drive mechanism of the moving seat. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the unwinding section of this utility model.

[0017] In the diagram: 1. Frame; 2. Unwinding section; 3. Receiving section; 4. Support; 5. Linkage device; 6. Proximity roller; 7. Swing arm; 8. Second drive mechanism; 9. Third drive mechanism; 10. First cutting mechanism; 11. Second cutting mechanism; 12. Guide rail; 13. Slider; 14. Detailed Implementation

[0018] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0019] Combination Figure 1 and Figure 2 As shown, a high-stability precision unwinding and rewinding device includes a frame 1 and an unwinding section 2 and a rewinding section 3 disposed on the frame 1. The supports 4 of the unwinding section 2 and the rewinding section 3 are both movably connected to the frame 1 and linked together. A linkage device 5 is also provided at the connection point of the two supports 4. The linkage device 5 pushes the two supports 4 to move left and right synchronously. When it is necessary to adjust the position of the roll material, the linkage device 5 moves the unwinding section 2 and the rewinding section 3 at the same time to avoid asymmetry between the roll material and the roller 6, thereby improving the success rate of paper splicing when changing the roll material.

[0020] The top of the receiving section 3 is connected to a swing arm frame 7 that moves back and forth. The swing arm frame 7 is provided with a pair of swing arms 8 and a second drive mechanism 9 that drives the swing arms 8 to move. A proximity roller 6 is rotatably connected between the two swing arms 8. The proximity roller 6 is driven to rotate by a first drive motor. The receiving section 3 is also provided with a third drive mechanism 10 that drives the swing arm frame 7 to move back and forth. The second drive mechanism 9 and the third drive mechanism 10 cooperate to ensure that the proximity roller 6 always abuts against the roll material on the unwinding section 2, so as to ensure that the proximity roller 6 works stably when the roll diameter decreases during roll material replacement and unwinding.

[0021] The unwinding section 2 is equipped with a cutting device, which consists of a first cutting mechanism 11 and a second cutting mechanism 12. The first cutting mechanism 11 and the second cutting mechanism 12 are respectively set to the A and B axes of the unwinding section 2. The cutting device has been changed from being installed on the receiving section 3 to being installed on the unwinding section 2 in order to increase the utilization rate of the old roll when the A and B axes of the unwinding section 2 are replaced.

[0022] In another embodiment, combined Figure 1 and Figure 2 As shown, the pusher of the linkage device 5 is connected to the bracket 4 of the unwinding section 2.

[0023] In another embodiment, such as Figure 1 As shown, the second drive mechanism 9 is a low-friction cylinder.

[0024] In another embodiment, such as Figure 1 As shown, the third drive mechanism 10 consists of a movable seat movably connected to the top of the receiving section 3 and a reducer equipped with a servo motor disposed in the receiving section 3. The bottom of the movable seat is provided with a rack, and the output shaft of the reducer is provided with a gear corresponding to the rack, and the gear meshes with the rack.

[0025] In another embodiment, combined Figure 1 and Figure 2 As shown, the frame 1 is provided with guide rails 13 corresponding to two supports 4, and the bottom of the two supports 4 is provided with sliders 14. The sliders 14 are matched on the corresponding guide rails 13 to ensure smooth left and right displacement of the two supports 4.

[0026] In another embodiment, such as Figure 1 As shown, the A and B axes of the unwinding section 2 are driven by servo motors equipped with encoders. The servo motors equipped with encoders control the rotation speed of the A and B axes to adapt to different production speeds and flip the old and new rolls. When flipping and replacing, the aluminum rollers of the cutting device corresponding to the A and B axes start rotating in advance to reach the production speed, so as to avoid the resistance generated when suddenly rotating at high speed from a standstill, which may cause the roll to wrinkle or slip, and ensure that the cutting blade cuts smoothly.

Claims

1. A high-stability precision unwinding and rewinding device, comprising a frame (1) and an unwinding section (2) and a rewinding section (3) disposed on the frame (1), characterized in that, The brackets (4) of the unwinding section (2) and the receiving section (3) are both moved left and right and connected to the frame (1) and linked together. A linkage device (5) is also provided at the connection of the two brackets (4). The linkage device (5) pushes the two brackets (4) to move left and right synchronously. The top of the receiving section (3) is connected to a swing arm frame (7) that moves back and forth. The swing arm frame (7) is provided with a pair of swing arms (8) and a second drive mechanism (9) that drives the swing arms (8) to move. A proximity roller (6) is rotatably connected between the two swing arms (8). The proximity roller (6) is driven to rotate by a first drive motor. The receiving section (3) is also provided with a third drive mechanism (10) that drives the swing arm frame (7) to move back and forth. The second drive mechanism (9) and the third drive mechanism (10) cooperate to ensure that the proximity roller (6) always abuts against the roll material on the unwinding section (2). The unwinding section (2) is provided with a cutting device, which consists of a first cutting mechanism (11) and a second cutting mechanism (12). The first cutting mechanism (11) and the second cutting mechanism (12) are respectively set to the A and B axes of the unwinding section (2).

2. The high-stability precision unwinding and rewinding device as described in claim 1, characterized in that, The pusher of the linkage device (5) is connected to the bracket (4) of the unwinding section (2).

3. The high-stability precision unwinding and rewinding device as described in claim 2, characterized in that, The second drive mechanism (9) is a low-friction cylinder.

4. The high-stability precision unwinding and rewinding device as described in claim 3, characterized in that, The third drive mechanism (10) consists of a movable seat movably connected to the top of the receiving section (3) and a reducer equipped with a servo motor disposed in the receiving section (3). The bottom of the movable seat is provided with a rack, and the output shaft of the reducer is provided with a gear corresponding to the rack. The gear meshes with the rack.

5. The high-stability precision unwinding and rewinding device as described in claim 4, characterized in that, The frame (1) is provided with guide rails (13) corresponding to the two supports (4), and the bottom of the two supports (4) is provided with sliders (14), which are matched on the corresponding guide rails (13).

6. The high-stability precision unwinding and rewinding device as described in claim 5, characterized in that, The A and B axes of the unwinding section (2) are driven by servo motors equipped with encoders.

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