Contactless assisted roller rotation structure
Patent Information
- Application Number
- CN202522678327.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-17
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-17
AI Technical Summary
[0002]隔膜分切机的被动辊的转动依靠分切材料与其的摩擦力，隔膜分切机作业时，膜面张力小会导致施加于辊面的正压力不足，根据摩擦力计算公式(摩擦力＝正压力×摩擦系数)，正压力不足会使带动辊子转动的摩擦力减小，进而引发辊子与膜面打滑(丢速现象)，直接增加膜面划伤风险
[0022]上述无接触助力辊子转动结构采用了磁性传动结构，利用了两个相互垂直的磁性转盘，利用磁力传动，为辊子提供动力来源，并且助力仅为辊子提供转动辅助，辊子主速度仍由其与膜面的摩擦力决定，天然契合主机线速度，无需额外调节匹配，解决分切材料张力不足带来的丢速现象。并且，在两个转盘之间不相互接触的前提下，消除拆卸束缚，操作效率大幅提升。
Smart Images
Figure CN224900398U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a contactless transmission structure, and more particularly to a contactless assist roller rotation structure. Background Technology
[0002] The rotation of the passive roller of the diaphragm slitting machine relies on the friction between the slitting material and the roller. When the diaphragm slitting machine is operating, a small film surface tension will result in insufficient positive pressure applied to the roller surface. According to the friction calculation formula (friction force = positive pressure × friction coefficient), insufficient positive pressure will reduce the friction force that drives the roller to rotate, which will cause the roller to slip on the film surface (speed loss phenomenon), directly increasing the risk of scratches on the film surface. Utility Model Content
[0003] In view of the above situation, it is necessary to provide a contactless assist roller rotation structure that solves at least one of the above problems.
[0004] A contactless assist roller rotation structure includes a support, a roller mounted on the support via bearings, and further includes:
[0005] A drive assembly is mounted on the bracket, and the drive assembly includes a first turntable;
[0006] A second turntable is provided on the roller;
[0007] The first and second turntables are perpendicular in axis.
[0008] The first turntable and the second turntable are not in contact and there is a magnetic force between them.
[0009] As a further embodiment of this utility model: a first magnet group is provided on the end face of the first turntable;
[0010] A second magnet assembly is provided on the circumferential surface of the second turntable;
[0011] The end face of the first turntable is aligned with the circumferential face of the second turntable.
[0012] As a further embodiment of this utility model: a first magnet group is provided on the circumferential surface of the first turntable;
[0013] A second magnet assembly is provided on the end face of the second turntable;
[0014] The circumferential surface of the first turntable is aligned with the end face of the second turntable.
[0015] As a further embodiment of this utility model: the drive assembly is disposed on the side of the bracket facing the roller;
[0016] The second turntable is located on the roller near one end of the drive assembly.
[0017] As a further embodiment of this utility model, it also includes a fixing base;
[0018] The end of the bracket furthest from the roller is rotatably connected to the fixed base.
[0019] As a further embodiment of this utility model: a cylinder is provided on the fixed base, and the movable end of the cylinder is connected to the bracket;
[0020] The connection between the movable end of the cylinder and the bracket is located between the roller and the fixed base.
[0021] The drive assembly includes a motor that drives the first turntable to rotate.
[0022] The aforementioned contactless assist roller rotation structure employs a magnetic transmission mechanism, utilizing two mutually perpendicular magnetic turntables. Magnetic force powers the rollers, and the assist only provides rotational support; the roller's main speed is still determined by its friction with the film surface. This naturally aligns with the main machine's linear speed, eliminating the need for additional adjustments and resolving speed loss issues caused by insufficient tension in the slitting material. Furthermore, by ensuring the two turntables do not contact each other, disassembly constraints are eliminated, significantly improving operational efficiency. Attached Figure Description
[0023] Figure 1 This is a first structural schematic diagram of an embodiment of the present utility model;
[0024] Figure 2 This is a second structural schematic diagram of an embodiment of the present utility model. Detailed Implementation
[0025] 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 for explaining this utility model and are not intended to limit this utility model.
[0026] 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.
[0027] 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.
[0028] like Figures 1-2 As shown, this utility model provides a contactless assist roller rotation structure, including a bracket 100, a roller 200 mounted on the bracket 100 via bearings, and further comprising:
[0029] A drive assembly 300 is mounted on a bracket 100 and includes a first turntable 310.
[0030] A second turntable 210 is provided on roller 200;
[0031] The first turntable 310 and the second turntable 210 are perpendicular in axis;
[0032] The first turntable 310 and the second turntable 210 are not in contact, and there is a magnetic force between them.
[0033] Due to the magnetism between the two turntables, when the first turntable 310 rotates, the second turntable 210 receives continuous rotational assistance due to the magnetic force. The entire assistance process is contactless; compared to traditional belt and coupling drives, there is no physical connection, and it does not hinder the disassembly of the rollers. Furthermore, because it is a contactless transmission, it requires virtually no maintenance.
[0034] Furthermore, a first magnet assembly 311 is provided on the end face of the first turntable 310;
[0035] A second magnet assembly 211 is provided on the circumferential surface of the second turntable 210;
[0036] The end face of the first turntable 310 is aligned with the circumferential face of the second turntable 210.
[0037] Alternatively, a first magnet group 311 is provided on the circumferential surface of the first turntable 310;
[0038] A second magnet assembly 211 is provided on the end face of the second turntable 210;
[0039] The circumferential surface of the first turntable 310 is aligned with the end face of the second turntable 210.
[0040] The two structures described above are based on the same principle, only their corresponding surfaces are reversed.
[0041] Furthermore, the drive assembly 300 is disposed on the side of the support 100 facing the roller 200;
[0042] The second turntable 210 is located on the roller 200 at one end near the drive assembly 300.
[0043] Furthermore, it also includes a mounting base 400;
[0044] The end of the bracket 100 away from the roller 200 is rotatably connected to the fixed base 400.
[0045] Furthermore, a cylinder 500 is installed on the fixed base 400, and the movable end of the cylinder 500 is connected to the bracket 100;
[0046] The connection between the movable end of the cylinder 500 and the bracket 100 is located between the roller 200 and the fixed seat 400. When the movable end of the cylinder 500 extends or retracts, the bracket 100 will swing around its connection point with the fixed seat 400, thereby adjusting the position of the roller 200, thus adjusting the wrap angle between the slitting material and the roller and the film tension of the slitting material, thereby increasing or decreasing the static friction between the slitting material and the roller.
[0047] Furthermore, the drive assembly 300 includes a motor 320, which drives the first turntable 310 to rotate. The drive assembly 300 only assists the rotation of the roller; the main speed of the roller is still determined by its friction with the film surface, naturally matching the linear speed of the main machine without the need for additional adjustment. This is mainly achieved by controlling the rotational speed of the motor 320 to match the rotational speed of the first turntable 310 with the linear speed of the main machine.
[0048] 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 contactless assist roller rotation structure, comprising a bracket (100) and a roller (200) mounted on the bracket (100) via bearings, characterized in that: Also includes: A drive assembly (300) is disposed on the bracket (100), the drive assembly (300) including a first turntable (310); A second turntable (210) is provided on the roller (200); The first turntable (310) and the second turntable (210) are perpendicular in axis; The first turntable (310) and the second turntable (210) are not in contact and there is magnetic force between them.
2. The contactless assist roller rotation structure as described in claim 1, characterized in that: A first magnet group (311) is provided on the end face of the first turntable (310); A second magnet assembly (211) is provided on the circumferential surface of the second turntable (210); The end face of the first turntable (310) is aligned with the circumferential face of the second turntable (210).
3. The contactless assist roller rotation structure as described in claim 1, characterized in that: A first magnet group (311) is provided on the circumferential surface of the first turntable (310); A second magnet assembly (211) is provided on the end face of the second turntable (210); The circumferential surface of the first turntable (310) is aligned with the end face of the second turntable (210).
4. The contactless assist roller rotation structure as described in claim 1, characterized in that: The drive assembly (300) is disposed on the side of the bracket (100) facing the roller (200); The second turntable (210) is located on the roller (200) at one end near the drive assembly (300).
5. The contactless assist roller rotation structure as described in claim 1, characterized in that: It also includes a mounting base (400); The end of the bracket (100) away from the roller (200) is rotatably connected to the fixed base (400).
6. The contactless assist roller rotation structure as described in claim 5, characterized in that: A cylinder (500) is mounted on a fixed base (400), and the movable end of the cylinder (500) is connected to the bracket (100); The connection between the movable end of the cylinder (500) and the bracket (100) is located between the roller (200) and the fixed seat (400).
7. The contactless assist roller rotation structure as described in claim 1, characterized in that: The drive assembly (300) includes a motor (320) that drives the first turntable (310) to rotate.