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Pinch roller contact-type synchronous drawing apparatus for separation membrane production

A synchronous stretching and contact technology, which is applied in the field of pinch roller contact synchronous stretching device, achieves the effects of energy saving, simple structure and stable mechanical properties

Inactive Publication Date: 2014-06-25
NANTONG TIANFENG NEW ELECTRONICS MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mechanism of horizontal and vertical stretching of the diaphragm at the same time and simultaneous finishing of the diaphragm is rarely reported in the existing literature

Method used

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  • Pinch roller contact-type synchronous drawing apparatus for separation membrane production

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Such as figure 1 , is a structural schematic diagram of the present invention, which is a nip roller contact synchronous stretching device for diaphragm production. As shown in the figure, it is arranged and installed along the unfolded diaphragm product roll 10, including: a guide roller 1, at least Two telescopic rollers 2, two telescopic rollers are selected in this figure, also have a receiving roller 9 and a trimming device 4; the connection method is: the unfolded diaphragm product roll 10 is tightly covered from the surface of the guide roller 1 Pass, pass up and down between the telescopic rollers 2 according to the wave shape, pass closely from the surface of the receiving roller 9, and finally pass between the cutting knives of the trimming device 4.

[0020] In addition to the above-mentioned main device, the guide rollers, telescopic rollers and rec...

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Abstract

The invention discloses a pinch roller contact-type synchronous drawing apparatus for separation membrane production. The apparatus is installed successively along spread separation membrane product rolls and comprises a guide roller, at least two expanding rollers, an undertake roller and a trimming device; the spread separation membrane product rolls tightly cover and pass the surface of the guide roller, wavily pass through the expanding rollers, tightly cover and pass the surface of the undertake roller, and pass through tools of the trimming device. Separation membrane or millipore membrane products are main raw materials of battery separation membranes, and when the separation membrane is prepared, the product mechanic strength is improved in drawing technology. The apparatus disclosed by the invention is special for drawing of separation membrane products, and also is capable of performing transverse and longitudinal drawing at the same time, thereby substantially improving the mechanical strength of the separation membrane products.

Description

technical field [0001] The invention relates to a nip roller contact type synchronous stretching device used for diaphragm production, and belongs to the technical field of diaphragm preparation machinery. Background technique [0002] The service life of lithium batteries has always been the focus of the development of the lithium battery industry, especially when lithium batteries are used in smart phones, making related products in use for a long time is the focus of research and development of lithium battery manufacturers. One way to do this is to enhance the mechanical properties of lithium battery separators. The improvement of the high temperature resistance strength and porosity of the lithium battery separator can greatly improve the service life of the lithium battery. [0003] Lithium battery separator and its microporous products are the necessary outer membrane structure for lithium batteries. Its main function is to isolate the positive and negative electrod...

Claims

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Application Information

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IPC IPC(8): B29C55/16
Inventor 范建国黄献中
Owner NANTONG TIANFENG NEW ELECTRONICS MATERIALS