Elastic device for fixing filter plate

The utility model relates to the technical field of wave soldering machines, and discloses an elastic device for fixing a filter plate, which comprises a soldering machine body, a conveying frame is fixedly mounted in the soldering machine body in a penetrating manner, a drying box is fixedly mounted on the inner side wall of the soldering machine body, and penetrating through holes are formed in the left side and the right side of the drying box. A user pushes a push plate to drive one end of a fixed bolt to be separated from the interior of an insertion hole, so that the limiting of the filter plate is conveniently relieved, and the user can conveniently take out the filter plate for cleaning; a user pushes a pushing plate to drive a fixing plug pin to move backwards, after the user puts a filter plate into a mounting hole, the user loosens the fixing plug pin, the fixing plug pin is inserted into an inserting hole under the action of resilience force of a spring to fix the filter plate, and the device is s