Diaphragm compounding device and pole piece processing system

The utility model provides a diaphragm compounding device and a pole piece processing system, the diaphragm compounding device is used for compounding two layers of diaphragms on two opposite side edges of a pole piece, and the diaphragm compounding device comprises two clamping units and a heating unit; each clamping unit comprises an upper pressing plate and a lower pressing plate which are arranged on the two sides of the two layers of diaphragms respectively, the upper pressing plates and the lower pressing plates are provided with clamping parts protruding outwards corresponding to the diaphragms, and the two layers of diaphragms on each side are clamped between the two clamping parts; and the heating unit is arranged on the upper pressing plate and/or the lower pressing plate. According to the diaphragm compounding device disclosed by the utility model, the upper pressing plate and the lower pressing plate are arranged, the convex clamping parts corresponding to the diaphragms are arranged on the upper