Compression device for waste plastic bags

The invention relates to a compression device, in particular to a compression device for waste plastic bags. The compression device for the waste plastic bags has a good compression effect and easy operation. The compression device comprises a base, a box body, a 7-shaped plate, a U-shaped plate, sliding rails, sliding blocks, a connecting plate, a screw rod, a nut, a gear ring, a pressing plate and the like. The box body is connected to the left side of the top of the base, and a discharging outlet is formed in the left side of the box body. The 7-shaped plate is connected to the right side of the top of the base, the U-shaped plate and a cylinder are installed at the top of the inner side of the 7-shaped plate, the cylinder is located on the left side of the U-shaped plate, and the sliding rails are installed on the left and right sides in the U-shaped plate. The pressing plate can be driven by the positive and negative rotation of a motor to move up and down to compress the waste plastic bags, the inner wa