Prepressing machine for plywood production line

Abstract

The invention belongs to the technical field of prepressing machines, and particularly relates to a prepressing machine for a plywood production line. The prepressing machine comprises a workbench, wherein a supporting plate and a prepressing unit are arranged on the workbench; the prepressing unit comprises a driving plate, a driven plate and lead screws; the upper plate surface of the driving plate is fixedly connected to the lower plate surface of a first plate through bolts, the inner sides of the four corners of the driving plate are connected to the four lead screws through first ball seats, and the four corners of the driving plate are in clearance fit with the outer rings of four supporting columns; one end of each lead screw is hinged to the supporting plate, and the other end ofeach lead screw is hinged to the workbench; the driven plate is arranged below the driving plate, the inner sides of the four corners of the driven plate are connected to the four lead screws throughsecond ball seats, the four corners of the driven plate are in clearance fit with the outer rings of the four supporting columns, and the rotating direction of balls in the second ball seats is opposite to the rotating direction of balls in the first ball seats; and through the cooperation among the supporting plate, an air cylinder and the prepressing unit, prepressing treatment of plywood is realized.

Description

technical field [0001] The invention belongs to the technical field of pre-pressing machines, in particular to a pre-pressing machine for a plywood production line. Background technique [0002] The pre-pressing machine is an auxiliary machine of the plywood production line. It is a mechanical device for preliminary bonding before gluing in order to shorten the hot-pressing cycle and improve the quality of the boards during the production process. The pre-pressing machine belongs to the pressure machine. The pre-pressing machine mainly cold-presses the veneer after gluing and assembling for a short time to make it preliminarily shaped, and then sends it to the hot-pressing machine for hot-pressing and gluing. It is an important equipment and an important link to improve the quality of plywood. The pre-pressing machine is generally composed of a frame, a fixed beam, a movable beam, a plate ejection device, an oil cylinder, a hydraulic system, and an electric control device. ...

AI Technical Summary

Problems solved by technology

[0006] In order to make up for the deficiencies in the prior art and to solve the problems of low pre-pressing efficiency of the board and failure of the air in the board to be effectively driven out, resulting in swelling of the board surface after hot pressing and failure of board production, the present invention proposes a Pre-pressing machine for plywood production line

Images