A semi-linkage drive roller structure

Abstract

The utility model relates to a kind of half-linkage transmission roller structures, comprising: the pulley of being arranged at passive roller end, the pulley and the passive roller are assembled by bearing;The pulley is driven by external power input;The position of the passive roller close to the pulley is provided with magnet disc, the magnet disc is fixed with the passive roller;The end face of the pulley close to the side of the magnet disc is provided with first magnet group;The end face of the magnet disc close to the side of the pulley is provided with second magnet group;There is magnetic attraction between the first magnet group and the second magnet group.The above-mentioned half-linkage transmission roller structure has increased pulley and magnet disc, realizes the force transmission of non-contact by relying on the magnet set on both, drives pulley using external power equipment, and then carries out resistance compensation to passive roller by magnetic force, with the advantages such as simple structure.

Description

Technical Field

[0001] This utility model relates to a transmission structure, and more particularly to a semi-linkage transmission roller structure. Background Technology

[0002] During the slitting process of a slitting machine, the rotation of the driven roller relies on the friction between the slitting material and the driven roller. In actual processing scenarios, it is common to encounter situations where the wrap angle of the driven roller is too small, resulting in low friction between the slitting material and the roller surface. When the friction between the slitting material and the roller surface is less than the resistance of the driven roller's rotation, the linear velocity of the driven roller will be lower than the linear velocity of the material (speed loss), causing relative motion between the two. This means that the slitting material and the surface of the driven roller will slide relative to each other. For film products, this sliding can cause irreversible damage, such as scratches, deformation, and tears. Alternatively, during startup, due to inertia, if the starting speed of the driven roller is slightly slower than the winding speed of the material, the same problem will occur.

[0003] Generally speaking, the resistance of the roller rotation comes from the rolling friction of the bearing, which means that the resistance is not large. Therefore, a new transmission structure is needed to counteract the resistance when the passive roller rotates, thereby solving the problem of material loss during slitting when the passive roller wrap angle is too small. Utility Model Content

[0004] In view of the above situation, it is necessary to provide a semi-linkage drive roller structure that solves at least one of the above problems.

[0005] A semi-linkage drive roller structure, comprising:

[0006] A pulley is located at the end of the driven roller, and the pulley and the driven roller are assembled via bearings; the pulley is driven by an external power input.

[0007] A magnet disk is provided on the passive roller near the pulley, and the magnet disk is fixed to the passive roller;

[0008] A first magnet group is provided on the end face of the pulley near the magnet disk;

[0009] A second magnet assembly is provided on the end face of the magnet disk near the pulley;

[0010] There is a magnetic attraction between the first magnet group and the second magnet group.

[0011] As a further aspect of this utility model: there is a gap between the first magnet group and the second magnet group, and the size of the gap is 0.1mm-1mm.

[0012] As a further aspect of this utility model, the number of magnets in the first magnet group and the second magnet group is the same.

[0013] As a further embodiment of this utility model: the magnetic poles of the magnets in the first magnet group and the second magnet group are arranged in the manner of a Heilbeck array.

[0014] As a further embodiment of this invention: the magnet disk and the passive roller are fixed together by a key and a keyway.

[0015] The aforementioned semi-linkage transmission roller structure incorporates a pulley and a magnet disc. Non-contact force transmission is achieved by relying on the magnets mounted on both. An external power device drives the pulley, and magnetic force is used to compensate for the resistance of the passive roller. This structure has advantages such as simplicity. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0017] Figure 2 yes Figure 1 Sectional view of AA;

[0018] Figure 3 yes Figure 2 Enlarged view of section B in the middle. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "center," "longitudinal," "lateral," "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figures 1-3 As shown, this utility model provides a semi-linkage transmission roller structure, including a passive roller 1. Both ends of the passive roller 1 are fixed to the frame via bearings, and one end of the passive roller 1 extends outward from the frame. A pulley 2 is provided on the section of the passive roller 1 extending outward from the frame. The pulley 2 is assembled to the passive roller 1 via bearings 3, and the pulley 2 rotates freely on the passive roller 1.

[0023] On the driven roller 1, next to the pulley 2, there is a magnetic disk 4. The magnetic disk 4 is fixedly connected to the driven roller 1 and rotates together with the driven roller 1. It is easy to see that the driven roller 1, the pulley 2 and the magnetic disk 4 are coaxial.

[0024] A first magnet group 21 is provided on the end face of the pulley 2 facing the magnet disk 4; correspondingly, a second magnet group 41 is provided on the end face of the magnet disk 4 facing the pulley 2. In this embodiment, both the first magnet group 21 and the second magnet group 41 contain three identical magnets. These magnets are equidistant from the axis of the driven roller 1. When the pulley 2 and the magnet disk 4 rotate relative to each other, the magnets in the first magnet group 21 and the second magnet group 41 will interleave. When the pulley 2 acts as the driving component, under the action of magnetic force, the magnetic force between the first magnet group 21 and the second magnet group 41 generates a pulling force on the magnet disk 4. The direction of the pulling force is the same as the rotation direction of the pulley 2. This pulling force can counteract the resistance of the driven roller 1 during rotation, thereby avoiding the situation of speed difference in material cutting.

[0025] In this embodiment, the magnet is preferably a circular magnet with a diameter of 10 mm and a thickness of 3 mm.

[0026] Furthermore, there is a gap between the magnet disk 4 and the pulley 2, the size of which is 0.1-1mm. In this embodiment, based on the size of the magnets mentioned above, the gap size is preferably 0.5mm. That is, the two do not contact each other at all, and are only connected by torque generated by the two sets of magnets.

[0027] It should be noted that the force transmitted between the pulley 2 and the magnetic disk 4 can be achieved by replacing magnets with different magnetic forces, changing the number of magnets, and adjusting the gap between the magnetic disk 4 and the pulley 2.

[0028] Furthermore, the magnets are evenly distributed in a ring array on the pulley 2 and the magnet disk 4. The direction and number of their magnetic poles can be arranged according to Heilbeck's principle to achieve the effect of small volume, small quantity, and high magnetic force.

[0029] Furthermore, the magnet disk 4 and the passive roller 1 are fixedly assembled through keys and keyways. This structure facilitates the disassembly of the magnet disk 4 and improves the ease of replacing the magnet.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A semi-linkage transmission roller structure, characterized in that: include: A pulley (2) is provided at the end of the driven roller (1), and the pulley (2) and the driven roller (1) are assembled together by a bearing (3); the pulley (2) is driven by an external power input; A magnet disk (4) is provided on the passive roller (1) near the pulley (2), and the magnet disk (4) is fixed to the passive roller (1); A first magnet group (21) is provided on the end face of the pulley (2) near the magnet disk (4); A second magnet assembly (41) is provided on the end face of the magnet disk (4) near the pulley (2); There is a magnetic attraction between the first magnet group (21) and the second magnet group (41).

2. The semi-linkage transmission roller structure as described in claim 1, characterized in that: There is a gap between the first magnet group (21) and the second magnet group (41), and the gap size is 0.1mm-1mm.

3. The semi-linkage transmission roller structure as described in claim 1, characterized in that: The number of magnets in the first magnet group (21) and the second magnet group (41) is the same.

4. The semi-linkage transmission roller structure as described in claim 3, characterized in that: The magnetic poles of the magnets in the first magnet group (21) and the second magnet group (41) are arranged in the manner of a Heilbeck array.

5. The semi-linkage transmission roller structure as described in claim 1, characterized in that: The magnet disk (4) and the passive roller (1) are fixed together by a key and a keyway.

Images