A printing and cutting equipment that precisely controls the rotational speed of the pressing roller according to the thickness of the cardboard

Abstract

The invention relates to the technical field of cardboard printing, and discloses a printing and cutting device that precisely controls the speed of a pressure roller according to the thickness of the cardboard, including a frame, a fixed roller is fixedly arranged on the left side of the bottom of the frame, and a lower roller is arranged in the middle of the bottom of the frame. Drive shaft, the two ends of the lower drive shaft are provided with adjustment bearings, the outside of the adjustment bearings is movably connected with a connecting rod, the other end of the connecting rod is connected with a cutter, the end of the cutter near the lower drive shaft is provided with a spring, and the middle section of the lower drive shaft is provided with A lower driving motor is arranged, and the upper right gear of the lower driving shaft is connected with a lower roller shaft. The printing and cutting equipment precisely controls the speed of the pressure roller according to the thickness of the cardboard. The adjustment roller has a small displacement with the change of the thickness of the cardboard. The displacement is amplified by the lever, and then the capacitor voltage of the plate changes accordingly, and the distance change is changed into an electrical signal change and sent to the comparison circuit. It is further enlarged to adjust the speed of the motor, so as to precisely control the speed of the pressure roller to protect the knife, and to realize the convenient replacement of the cutting knife.

Description

technical field [0001] The invention relates to the technical field of cardboard printing, in particular to a printing and cutting device for precisely controlling the rotating speed of a pressing roller according to the thickness of the cardboard. Background technique [0002] Due to the wide application of cardboard packaging, the demand for printed cardboard in the market is increasing day by day. In the cardboard printing process, the printed cardboard needs to be cut according to the purpose, but due to the difference in the thickness of the processed cardboard during the cutting process, it often occurs because the replacement thickness is different. The cutting line does not adjust the speed of the press roller in time, resulting in the cutting of the cardboard not meeting the requirements, or even damage to the cutter head. Contents of the invention [0003] (1) Solved technical problems [0004] Aiming at the deficiencies of the prior art, the present invention p...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a printing and cutting equipment that precisely controls the speed of the pressure roller according to the thickness of the cardboard, which has the advantage of automatically adjusting the speed of the driving pressure roller according to the thickness of the cardboard, and solves the problem that the speed of the pressure roller cannot be automatically adjusted

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