Teeth cushion height stepless adjuster for paper delivery roller of printer

Abstract

The invention discloses a teeth cushion height stepless adjuster for a paper delivery roller of a printer, which comprises a longitudinal pressing mechanism, a transverse pressing mechanism and a wedged strip tightly close to the bottom surface of a teeth cushion mounting plate, wherein the teeth cushion mounting plate is elastically connected to the paper delivery roller through the longitudinalpressing mechanism and the transverse pressing mechanism; the bottom surface of the teeth cushion mounting plate is a wedged surface with a lower gradient; the top surface of the wedged strip is a wedged surface with an upper gradient matched with the lower gradient; the inclined angles of the bottom wedged surface of the teeth mounting board and the top wedged surface of the wedged strip are completely matched; the wedged strip is mounted on the paper feeding roller and can move horizontally through a longitudinal adjusting mechanism; and the wedged surface of the bottom surface of the toothcushion mounting plate and the wedged surface tightly close to the top surface of the wedged strip can slide mutually. The tooth cushion height stepless adjuster provided by the invention can realizestepless adjustment to teeth cushion height, the efficiency can be improved by more than 80 percent, and the printing effect is greatly improved.

Description

technical field [0001] The invention relates to a stepless adjustment device for the height of the tooth pad used for the paper transfer cylinder of the printing machine. Background technique [0002] A general sheet-fed lithographic printing machine includes a tooth pad for the impression cylinder, a tooth pad for the paper transfer cylinder, a tooth pad mounting plate for installing the tooth pad of the paper transfer cylinder, and several planes of different sizes processed on its outer surface. round stick. [0003] For sheet-fed offset printing presses, more and more short-run jobs are being printed, and the paper thickness of different jobs is often different. In order to ensure good paper transfer and printing accuracy, the height of the tooth pad must be adjusted according to the paper thickness. Usually, when adjusting the height of the tooth pad, the height of the tooth pad of the impression cylinder is not adjusted, but the height of the tooth pad of the paper t...

AI Technical Summary

Problems solved by technology

[0005] The disadvantages of the above-mentioned prior art are: the whole process of adjusting the height of the tooth pads of the paper transfer cylinder is time-consuming, laborious, and inefficient, and because the outer surface of the round bar can only process a limited number of positioning planes, the height of the tooth pads can only be adjusted to a limited number of positions in stages. Several gears, unable to adapt to the stepless adjustment requirements of various paper thicknesses, it is difficult to guarantee the paper transmission accuracy and printing effect

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