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A kind of h-core surface rough rolling core tube

A technology with rough surface and winding core tube, which is applied in the field of winding core tube, can solve the problems of extremely thin film wrinkles, affect the winding quality of extremely thin film, and uneven winding, so as to achieve smooth winding, improve winding quality, reduce The effect of the possibility of movement

Active Publication Date: 2022-04-19
SUZHOU TIANYU PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that the surface of the above-mentioned core tube is smooth, and the Ra of the surface of the core tube is generally about 0.1 μm. When the extremely thin copper foil and aluminum foil are rolled, the extremely thin film will have wrinkles. Or there is an air bulge between the core tube and the pole film, resulting in uneven winding and affecting the winding quality of the pole film

Method used

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  • A kind of h-core surface rough rolling core tube
  • A kind of h-core surface rough rolling core tube
  • A kind of h-core surface rough rolling core tube

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Embodiment Construction

[0029] The following is attached Figure 1-3 The application is described in further detail.

[0030] The embodiment of the present application discloses an H-CORE surface rough rolling core tube. refer to figure 1 , a H-CORE surface rough core tube includes a core tube body 1, a tube sleeve 2 is set on the core tube body 1, and a rough layer 3 is provided on the surface of the tube sleeve 2, and the rough layer 3 is composed of several irregular The surface roughness of the sleeve 2 is in the range of 2-10 μm.

[0031] refer to figure 1 , the sleeve 2 is a mixed material, coated with resin on the outside, and has multiple components inside. The specific components include plastic granules, glass fibers and other formulas. Various components have different tensile and stress change properties. During the process, the resin is in a molten state, and the fluidity and stress changes of the internal components make the surface of the sleeve 2 form a rough layer 3. At the same ...

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Abstract

The present application relates to the field of core tubes, in particular to a H-CORE surface rough core tube, which includes a core tube body, a core tube body is provided with a sleeve, and the length of the sleeve is shorter than the core tube body. A rough layer is provided on the surface of the sleeve, and the surface roughness of the rough layer ranges from 2-10 μm. The rough layer is composed of several particles, and the particles are irregular in shape. The application has the effect of improving the winding quality of the extremely thin film.

Description

technical field [0001] The present application relates to the field of core tubes, in particular to a core tube with H-CORE rough surface. Background technique [0002] A core tube is a tube used to roll various strip products such as film, tape or paper. In the production process of lithium batteries, copper foil and aluminum foil with a thickness of less than or equal to 6 μm are needed. The core tube can store copper foil, aluminum foil and other extremely thin films into rolls, so as to facilitate the transportation and use of copper foil and aluminum foil. [0003] The Chinese patent with the notification number CN205772475U discloses a coil core tube, including a tube body, the tube body includes an inner tube body and an outer tube body sleeved on the inner tube body, the cross-sectional shape of the inner tube body is polygonal, each The edge of the inner pipe body is extended to the inner wall of the outer pipe body by a reinforcing piece, and the cross-sectional s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H75/14B65H75/18B65H75/28B65H23/34B65H18/10
CPCB65H75/14B65H75/18B65H75/28B65H23/34B65H18/10
Inventor 钱晓人
Owner SUZHOU TIANYU PLASTIC