Prepressing machine

Abstract

The invention discloses a prepressing machine. The prepressing machine comprises a rack; a prepressing mechanism, a spraying mechanism and a deviation rectifying mechanism are arranged on the rack; and the prepressing mechanism comprises a servo motor, a PLC program controller, a gear, multiple wire pressing wheels, a gear rack, two air cylinders, a fixing base, a wire pressing wheel synchronous shaft and a flattening roll, the servo motor and the two air cylinders are both electrically connected with the PLC program controller, the PLC program controller and the servo motor are both installedon the rack, the gear is installed on an output shaft of the servo motor, and the gear rack and the wire pressing wheel synchronous shaft are both installed on the fixing base. According to the prepressing machine, operation is convenient, paperboards are prepressed and softened before entering die-cutting wire pressing equipment, the paper surface strength is reduced, therefore, the condition that the efficiency is reduced and the cost is increased due to the fact that raw paper made of different materials is frequently replaced by manufacturers can be avoided, the common problems that the paperboards are burst and are prone to being broken are reduced, and great help for improving the quality of the corrugated paperboards is achieved.

Description

technical field [0001] The present invention relates to the technical field of mechanical equipment, and more specifically relates to a pre-pressing machine. Background technique [0002] The pre-pressing machine is used in the pre-pressing line of the corrugated cardboard production line. When producing corrugated paper, the cardboard is often prone to bursting. The bursting line refers to the cardboard being subjected to excessive die-cutting pressure when the product is die-cut or the finished product is folded. The bearing limit of the cardboard fiber is broken, and the fiber breaks or partially breaks at the indentation position. The corrugated cardboard production line bursting line has always been an important problem that plagues cardboard manufacturers. The folding resistance of cardboard is an important index for the quality inspection of corrugated cardboard. Its Whether it is qualified or not is related to the quality of the whole batch of cartons. There are many...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned defects in the prior art, and provide a pre-pressing machine, which is easy to operate. Before the cardboard enters the die-cutting line equipment, the device first performs pre-pressing and softening to reduce the surface strength of the paper, thereby avoiding It eliminates the efficiency reduction and cost increase caused by the frequent replacement of base paper of different materials by manufacturers, and reduces some common problems of cardboard bursting and easy breaking, which is of great help to improve the quality of corrugated cardboard

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