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Coiled core pipe with uniform and rough surface

A technology with uniform surface and core tube, applied in the field of core tube, can solve the problems of copper and aluminum foil wrinkle, poor primer and other problems, achieve the effect of uniform thickness, good starting primer, and improved quality

Inactive Publication Date: 2019-11-15
SUZHOU TIANYU PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the invention provides a winding core tube with a uniform and rough surface, which has the advantages of avoiding wrinkles when the copper and aluminum foil is rewound, and can straighten the uneven surface of the copper and aluminum foil, etc., and solves the problem of When the existing device is rewinding the copper and aluminum foil, the copper and aluminum foil will wrinkle, and it is not easy to start the bottoming problem

Method used

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  • Coiled core pipe with uniform and rough surface
  • Coiled core pipe with uniform and rough surface
  • Coiled core pipe with uniform and rough surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] see Figure 5 , the diameter range of the spray particle 02 is 2-8 mm. At this time, when the copper and aluminum foil with a thickness of less than 6 mm is retracted, compared with the unset spray particle 02, the copper and aluminum foil has just touched the spray particle 02. When the friction coefficient is low, it is conducive to the straightening and leveling of the copper and aluminum foil, and it is helpful for the starting of the copper and aluminum foil to make a bottom.

Embodiment 2

[0028] see Image 6 , the diameter range of the spray particle 02 is 9-15 um, at this time, when the copper and aluminum foil with a thickness of more than 6 um is retracted, due to the large distance between the spray particles 02, a gap is formed, and there is an exhaust passage. As a result, the gas can be discharged as soon as possible when the copper and aluminum foil is turned, and the wrinkle and bulging phenomenon of the copper and aluminum foil is greatly reduced. Compared with the case where the spray particles 02 are not installed, the copper and aluminum foil is not tightly attached to the rotating cylinder 01. The frictional force between the copper aluminum foil and the flat rough surface formed by spraying particles 02 on the surface of the rotating cylinder 01 is increased, which can prevent the copper and aluminum foil from sliding on the rotating cylinder 01 after being rolled.

[0029] When using the present invention:

[0030] When in use, first select the...

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Abstract

The invention discloses a coiled core pipe with a uniform and rough surface. The coiled core pipe comprises a rotating cylinder, wherein a circular through hole is formed in the inner side of the rotating cylinder; a rotating sleeve is fixedly connected to the circular through hole of the rotating cylinder, and a circular through hole is formed in the outer side of the rotating sleeve; a connecting shaft is fixedly connected to the circular through hole of the rotating sleeve, and the length of the connecting shaft is greater than that of the rotating cylinder; and spraying particles are sprayed on the outer side of the rotating cylinder. According to the coiled core pipe with the uniform and rough surface, by arranging the spraying particles, when a copper aluminum foil is rotated, heading and priming can be well performed on the copper aluminum foil; when the rotating cylinder rotates the copper aluminum foil, the spraying particles are capable of straightening out an uneven surfaceof the copper aluminum foil, so that the phenomenon of wrinkling when the copper aluminum foil is rotated is avoided; and moreover, the spraying particles can be selected according to different thicknesses of the copper aluminum foils, so that friction force between the copper aluminum foil and the rotating cylinder is increased when the copper aluminum foil is rotated.

Description

technical field [0001] The invention relates to the technical field of core tubes, in particular to a core tube with a uniform and rough surface. Background technique [0002] Copper-aluminum foil is an essential material used in power batteries. Copper-aluminum foil is an active metal. In dry air, a dense oxide film is formed on the surface of copper-aluminum immediately, so that copper-aluminum will not be further oxidized and can withstand water; but The powder of copper and aluminum is very flammable when mixed with air; molten copper and aluminum can react violently with water; copper and aluminum are amphoteric and are easily soluble in strong alkali and dilute acid. With good ductility, products are often made into rods, flakes, foils, powders, ribbons and filaments. The content of copper and aluminum in the earth's crust is second only to oxygen and silicon, ranking third. The most abundant metal element in . In the development process of the three important indust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H75/26
CPCB65H75/26B65H75/14B21C47/28B21C47/02B65H23/24B65H27/00B65H2701/1732
Inventor 钱晓人
Owner SUZHOU TIANYU PLASTIC
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