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Paper feeding roll with non-bloomed surface

A technology of paper feed roller and rubber roller, which is applied in the directions of pile separation, layered products, transportation and packaging, etc., can solve the problem of frost spray on the surface of the paper feed wheel, and achieve the effect of reducing frost spray and excellent wear resistance.

Active Publication Date: 2015-06-24
BEIJING LASER HI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a paper feed wheel with no frost on the surface, so as to solve the problem of frost spray on the surface of the paper feed wheel in the prior art

Method used

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Embodiment Construction

[0026] Table 1 is a specific embodiment of the present invention and two prior art (comparative example 1 and comparative example 2) formula and performance test method, data, the content of various compositions can be in the technical scheme of above-mentioned summary of the invention part Test options within the range mentioned in order to obtain products with better performance.

[0027] Table 1

[0028]

[0029] The raw materials used in the above rubber composition are all commercially available products.

[0030] Butadiene rubber and natural rubber in Table 1 can also be used alone.

[0031] The making of paper feed wheel (cover) of the present invention adopts well-known rubber production technology to carry out. The various components in the rubber composition are mixed according to the usual process, and then molded into a long tube shape. The molding temperature is 150°C. The vulcanization time depends on the amount of the vulcanization system. Usually, the vulc...

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PUM

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Abstract

The invention discloses a paper feeding roll with a non-bloomed surface, which consists of a plastic framework and a rubber roll or sleeve sleeved on the plastic framework, wherein the rubber roll or sleeve is made of a rubber composition which comprises high-wear resistance rubber, a non-bloomed rubber vulcanization system applicable to cis-polybutadiene, natural rubber or the composition of the cis-polybutadiene and the natural rubber, and more than one antioxidant. The paper feeding roll has the advantages that: the two selected kinds of rubber, namely the cis-polybutadiene and the natural rubber, have high wear resistance and the compatibility of the two kinds of rubber are very high; through combination and dose control, the rubber vulcanization system can be consumed in a vulcanization reaction as fully as possible so as to fully vulcanize the rubber roll of the paper feeding roll without being sprayed out from the surface of the rubber due to over dose; and the dose of anti-aging agents is reduced as much as possible, and the ratio of the two kinds of anti-aging agents are regulated to further reduce the blooming of the rubber sleeve on the premise of maintaining the aging performance of the rubber sleeve.

Description

technical field [0001] The invention relates to a paper feed wheel in a paper pickup system such as a printer, a copier, and an all-in-one machine, and more particularly relates to a paper feed wheel for feeding a single sheet of paper into a copying or printing device. Background technique [0002] As we all know, in office equipment such as modern printers, copiers, fax machines and all-in-one machines, a stack of paper is pre-placed in the paper tray, and when working, a single sheet of paper is fed from the stack to the area where copying or printing is performed. In this process, the separation and transmission of the paper are all achieved by the friction of the rubber wheel (sleeve) on the surface of the paper feed wheel. [0003] The material used to make the rubber wheel (sleeve) on the surface of the paper feed wheel must meet the following strict and even contradictory requirements: [0004] 1. High friction: During the service life, the friction is always high t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B25/08C08L9/00C08L7/00B65H3/06B65H5/06
Inventor 张文芳
Owner BEIJING LASER HI TECH CO LTD
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