FEED PRE-COMPRESSION DEVICE FOR USE IN CROPPING MACHINE

摘要

A feed pre-compression device for use in a cropping machine, comprising a vacuum cover provided above a feed-end conveyor belt (13), wherein the vacuum cover comprises a top plate (14) and side plates (12); the top plate is provided with vent holes that are stepped holes; a stop block (15) is provided on each vent hole; the upper end of the stop block is connected with an air cylinder (6); the upper end of the top plate is further connected with a lifting mechanism; the side plate is made of a resilient material, and is provided with symmetrical air pumping openings (18); the air pumping opening is connected with a vacuum pumping mechanism; the clamping mechanisms that are symmetrically distributed are further provided on the racks at the two sides of the conveyor be each clamping mechanism comprises moving blocks (2); the moving block can move on the rack (1) in the Y direction; the moving block is provided with clamping arms (7); the clamping arm is driven by a clamping air cylinder (8). By using the vacuum cover to perform vacuum pumping and compression on multiple layers of materials to be cut, the multiple layers of materials to be cut can be compressed and attached in a vacuum pumping manner, and thus the multiple layers of materials are cropped at one time, and the cropping efficiency is improved.