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Paper feeding device

A paper feeding and snapping device technology, applied in printing devices, printing, etc., can solve problems such as paper or paper boxes cannot be taken out smoothly, paper jams, paper breaks, etc.

Inactive Publication Date: 2012-11-28
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional printers usually produce paper jams during use. When users take out unprinted blank paper from the paper tray (the purpose may be to replace different types of paper or encounter paper jams), If the engagement between the pickup roller and the paper is not released, the mechanism may be locked and the paper or paper cassette cannot be taken out smoothly.
At this time, if the user forcibly pulls out the paper or paper cassette, it will usually cause the paper part to break in the printer and cause a mechanical failure, causing the printer to fail to work normally.

Method used

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Experimental program
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Embodiment Construction

[0014] see figure 1 and figure 2 , a preferred embodiment of the paper feeding device of the present invention is used to prevent paper jams during paper feeding, including a paper fetching device 100 , a delayed snapping device 200 and a one-way snapping device 300 . The paper picking device 100 includes two paper picking wheels 110 and a driving wheel 120. Under normal working conditions, the driving wheel 120 rotates in the counterclockwise direction and passes through the delayed snapping device 200, the one-way snapping device 300 and several transmission gears. The two pick-up rollers 110 are driven to rotate clockwise to perform the pick-up operation.

[0015] see Figure 2 to Figure 5 , the delayed meshing device 200 includes a first gear 210 and a first coupling 220 rotatable relative to the first gear 210 . The one-way meshing device 300 includes a second gear 310 and a third gear 320 installed on the first coupling 220 and can be installed on the first coupling ...

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PUM

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Abstract

The invention discloses a paper feeding device to prevent paper jam in the paper feeding process. The paper feeding device comprises a biting delay device and a one-way biting device, wherein the biting delay device comprises a first gear and a first coupler sleeved on the first gear; the first gear can rotate relative to the first coupler; the one-way biting device comprises a third gear sleeved on the first coupler; when the paper feeding device normally works, the first gear rotates along a first direction relative to the first coupler and drives the first coupler to rotate along the first direction; and when the paper feeding device has a paper jam, the first gear rotates along a second direction relative to the first coupler and drives the first coupler to rotate along the second direction, the first gear stops rotating, and the first coupler rotates along the second direction relative to the first gear until the paper jammed is pulled out.

Description

technical field [0001] The invention relates to a paper feeding device, in particular to a paper feeding device which can prevent a printer from jamming during the paper feeding process. Background technique [0002] Traditional printers usually produce paper jams during use. When users take out unprinted blank paper from the paper tray (the purpose may be to replace different types of paper or encounter paper jams), If the engagement between the pick-up roller and the paper is not released, the mechanism may be locked and the paper or the paper cassette cannot be taken out smoothly. At this time, if the user forcibly pulls out the paper or the paper cassette, it will usually cause a part of the paper to break in the printer and cause a mechanical failure, causing the printer to fail to work normally. Contents of the invention [0003] In view of the above, it is necessary to provide a paper feeding device that can prevent the printer from jamming during paper feeding. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J13/00
Inventor 苏良庆
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD