Feeding device for digital printer

Abstract

The present invention provides a feeding device of digital printer, which comprises the following components: a feeding part which includes a supporting plate that is fixedly installed at the lower part of frame conveying table, a compressing arm that is rotatablely installed with compressing roller contacting with medium, and an elastic component that is installed on the other end of the compressing arm for elastically supporting the compressing arm; an acting component which is installed between the supporting plate and compressing arm of the feeding part and executes reciprocating motion when a central part is taken as a reference for leading to the selective contacting of the compressing roller to the medium; an operating component which is simultaneously inserted into the middle partof the acting component, rotates and lifts the compression roller; and a locking component which is fixed on a fixed position with a mode that the compressing roller of the feeding part does not contact the medium. In the feeding device which presses the medium repeatedly and simultaneously feeds, the feeding device at the position which does not require movement is locked, and the compressing roller is divided without contacting the medium thereby preventing the abrasion of compressing roller.

Description

technical field [0001] The present invention relates to a supply device for a digital printing machine, and in more detail relates to a supply device that repeatedly presses the medium while supplying the supply device. contact, thereby preventing wear of the pinch roller on the supply device of digital printing presses. Background technique [0002] Generally, the following latest digital printing machine (Digital Printing Machine) is known, that is, using the following subtractive mixing technology, the digital control part digitizes the required output signal, and red (Magenta, M), yellow ( The so-called three primary colors (Yellow, Y) and Cyan (Cyan, C) are supplied to the printing head (Head) that ejects the ink, and the color is sprayed on the printing paper (Media) to form a subtractive mixing technology of various colors, and draw the desired color of the user. The latest printing device of the pattern. [0003] By using the above-mentioned subtractive mixing tech...

AI Technical Summary

Problems solved by technology

[0017] In addition, when the size of the medium is small, in the supply device, the pinch roller of the supply device at a position that does not need to operate is in contact with the conveying roller, and there is a problem that the pinch roller continues to be worn.

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