Disc winding and unwinding device

Abstract

The utility model discloses a disc winding and unwinding device which comprises a support, a left disc and a right disc are symmetrically arranged on the two sides of the support, a first left inflatable top and a second left inflatable top are symmetrically arranged on the left disc, a first right inflatable top and a second right inflatable top are correspondingly arranged on the right disc, the first left inflatable top is connected with a first driving motor, and the second left inflatable top is connected with a second driving motor. The second left inflatable top head is connected with a second driving motor, and a fluted disc is arranged on one side of the right disc and meshed with a motor reducer. The material shaft is reasonable and ingenious in structural design, the two ends of the material shaft are connected and fixed through the left inflatable ejector head and the right inflatable ejector head, a center shaft is omitted, so that the diameter of materials capable of being wound on the material shaft can be enlarged, the motor reducer is meshed with the fluted disc, on one hand, the left disc and the right disc can be driven to rotate, and the material shaft is convenient to replace; and the left disc and the right disc can be locked, vibration is reduced, and wrinkles of materials are avoided.

Description

Technical Field

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

[0002] Traditionally, printing presses use tower-type winding devices. When dual winding rollers are installed, a central shaft limits the diameter that one winding roller can wind. If the roll diameter is too large, vibration can easily occur, causing wrinkles in the wound material and affecting product quality. Furthermore, the presence of the central shaft creates numerous obstacles during roll changes, making manual operation cumbersome and posing a risk of being caught in the shaft. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, this utility model provides a disc winding and unwinding device that eliminates the central shaft, can enlarge the diameter of the material roll, and is convenient and safe to use.

[0004] To achieve this objective, the structure adopted by this utility model is as follows: a disc winding and unwinding device, including a support frame, with a left disc and a right disc symmetrically arranged on both sides of the support frame. A first left air expansion head and a second left air expansion head are symmetrically arranged on the left disc, and a first right air expansion head and a second right air expansion head are correspondingly arranged on the right disc. The first left air expansion head is connected to a first drive motor, and the second left air expansion head is connected to a second drive motor.

[0005] A toothed disc is provided on one side of the right disc, and the toothed disc meshes with the motor reducer, which is fixed on the bracket.

[0006] One or more connecting frames are provided between the left and right disks, and the connecting frames connect the edges of the left and right disks.

[0007] The first drive motor and the second drive motor are connected to the motor wall plate. The left disc and the motor wall plate are connected to each other through a connecting shaft. The first drive motor is connected to one end of the connecting shaft through a transmission belt, and the other end of the connecting shaft is connected to the first left air expansion head through a transmission belt. A bushing is provided on the outside of the connecting shaft. One end of the bushing is connected to the second drive motor through a transmission belt, and the other end is connected to the second left air expansion head through a transmission belt.

[0008] One end of the first left air expansion mandrel is connected to the first cylinder via an air expansion mandrel movable connection structure; the second left air expansion mandrel is connected to the second cylinder via the same air expansion mandrel movable connection structure.

[0009] Its beneficial effects are: the structure of this utility model is reasonable and ingenious. The two ends of the material shaft are connected and fixed by the left and right air expansion heads. Since the central shaft is eliminated, the diameter of the material that can be wound on the material shaft can be expanded. The motor reducer meshes with the gear plate, which can drive the rotation of the left and right discs on the one hand, making it convenient to replace the material shaft. At the same time, when winding, the left and right discs can be locked to reduce the generation of vibration and prevent the material from wrinkling. Attached Figure Description

[0010] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:

[0011] Figure 1 This is the front view of this utility model;

[0012] Figure 2 It is the movable connection structure of the air-expanded mandrel. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0014] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components; a fixed connection can be welding or adhesive bonding. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0016] like Figure 1The disc winding and unwinding device shown includes a support 1. A left disc 2 and a right disc 3 are symmetrically arranged on both sides of the support 1, and are connected to the support 1 via bearings. A first left air-expanding head 5 and a second left air-expanding head 7 are symmetrically arranged on the left disc 2. A first right air-expanding head 6 and a second right air-expanding head 8 are arranged on the right disc 3 corresponding to the first left air-expanding head 5 and the second left air-expanding head 7. The material shaft is fixed at both ends by the left and right air-expanding heads. The first left air-expanding head 5 is connected to a first drive motor 17, and the second left air-expanding head 7 is connected to a second drive motor 16. Driven by the drive motors, the material shaft winds and unwinds. Since there is no central shaft between the left disc 2 and the right disc 3, the material diameter of the material shaft connected between the air-expanding heads can be larger, improving winding and unwinding efficiency.

[0017] A toothed disc 13 is provided on one side of the right disc 3. The toothed disc 13 meshes with the motor reducer 14. The motor reducer 14 is fixed on the bracket 1. When the material shaft needs to be replaced, the left disc 2 and the right disc 3 are rotated by the drive of the motor reducer 14 to move the material shaft to a suitable position for easy replacement. During the winding and unwinding operation, the tight meshing of the motor reducer 14 and the toothed disc 13 locks the right disc 3, reducing the generation of vibration and preventing the material from wrinkling due to vibration.

[0018] One or more connecting frames 4 are provided between the left disk 2 and the right disk 3. The connecting frames 4 connect the edges of the left disk 2 and the right disk 3, reinforcing the overall structure while reducing the impact on the diameter of the material shaft. Guide rollers are provided on the connecting frames 4 to redirect and transfer the material.

[0019] The first drive motor 17 and the second drive motor 16 are connected to the motor wall plate 15. The left disc 2 and the motor wall plate 15 are connected to each other through a connecting shaft 12. Bearings are provided at both ends of the connecting shaft 12. The first drive motor 17 is connected to one end of the connecting shaft 12 through a transmission belt, and the other end of the connecting shaft 12 is connected to the first left air expansion head 5 through a transmission belt. A bushing 11 is provided on the outside of the connecting shaft 12. The bushing 11 is connected to the connecting shaft 12 through a bearing. One end of the bushing 11 is connected to the second drive motor 16 through a transmission belt, and the other end is connected to the second left air expansion head 7 through a transmission belt.

[0020] One end of the first left air expansion mandrel 5 is connected to the first cylinder 10 via an air expansion mandrel movable connection structure; the second left air expansion mandrel 7 is connected to the second cylinder 9 via the air expansion mandrel movable connection structure.

[0021] like Figure 2As shown, the movable connection structure of the air expansion mandrel includes an air expansion mandrel rod 18, which is mounted on the first left air expansion mandrel 5 or the second left air expansion mandrel 7. The end of the air expansion mandrel rod 18 is connected to the piston rod of the first cylinder 17 or the second cylinder 16, enabling the air expansion mandrel rod 18 to extend and retract. A mandrel sleeve 20 is fitted around the outside of the air expansion mandrel rod 18. A movable connection structure, such as a limiting groove, is provided between the air expansion mandrel rod 18 and the mandrel sleeve 20. A transmission belt is connected to the outside of the mandrel sleeve 20, which drives the mandrel sleeve 20 and the air expansion mandrel rod 18 to rotate synchronously. A dust cover 19 is provided on the outside of the mandrel sleeve 20. The dust cover 19 and the mandrel sleeve 20 are connected to each other through one or more bearings. The first cylinder 10 and the second cylinder 9 are connected to their corresponding dust covers 19. The dust cover 19 is connected to the left disc 2.

[0022] Based on the above description and inspired by this utility model, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A disc winding and unwinding device, comprising a support (1), characterized in that, The bracket (1) has a left disc (2) and a right disc (3) symmetrically arranged on both sides. The left disc (2) has a first left air expansion head (5) and a second left air expansion head (7) symmetrically arranged on it. The right disc (3) has a first right air expansion head (6) and a second right air expansion head (8) correspondingly arranged on it. The first left air expansion head (5) is connected to the first drive motor (17), and the second left air expansion head (7) is connected to the second drive motor (16). The first drive motor (17) and the second drive motor (16) are connected to the first drive motor (17) and the second drive motor (16). On the motor wall plate (15), the left disc (2) and the motor wall plate (15) are connected to each other by a connecting shaft (12). The first drive motor (17) is connected to one end of the connecting shaft (12) by a transmission belt, and the other end of the connecting shaft (12) is connected to the first left air expansion head (5) by a transmission belt. A bushing (11) is provided on the outside of the connecting shaft (12). One end of the bushing (11) is connected to the second drive motor (16) by a transmission belt, and the other end is connected to the second left air expansion head (7) by a transmission belt.

2. The disc winding and unwinding device according to claim 1, characterized in that, A gear plate (13) is provided on one side of the right disc (3). The gear plate (13) meshes with the motor reducer (14), and the motor reducer (14) is fixed on the bracket (1).

3. The disc winding and unwinding device according to claim 1, characterized in that, One or more connecting frames (4) are provided between the left disk (2) and the right disk (3), and the connecting frames (4) connect the edges of the left disk (2) and the right disk (3).

4. The disc winding and unwinding device according to claim 1, characterized in that, The first left air expansion head (5) is connected to the first cylinder (10) through the air expansion head movable connection structure; the second left air expansion head (7) is connected to the second cylinder (9) through the air expansion head movable connection structure.

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