Net changing device for plastic molten solution filter

The utility model discloses a plastic melt filter screen changing device comprising a front module. A feed channel arranged inside the front module is respectively communicated to the mainframe charging barrel and the discharging channel of the rear module. The discharging channel is linked with a shaping die head. A filter screen is installed between the front and rear modules. The outlet side of the filter screen is provided with a gear hauling device comprising a driving gear connected on a motor and a follower gear working with the driving gear. The filter screen is sandwiched between the driving gear and the follower gear. With this design, the labour intensity and operation difficulty for the staff is effectively reduced, and the production efficiency of single machine is improved. Thus, the effects of the cost reduction and economic benefit increasing are achieved. Thereby, the utility model is widely applicable for plastic sheet machines.