Structure feature:
     The machine is made up of four machine heads, machine frame, electric control box and material -supporting frame etc. The left machine head has horizontal moving mechanism, and can move *0mm along the track under the control of the program. There are fixing mechanism, pressing mechanism, heating mechanism and head box etc on each machine head.

Function explanation:
     The machine is one of the necessary equipments processing PVC win-door, it can achieve the whole welding process independently. It features advanced technology, reliable function, and easy operation. It adopts PC control, pneumatic drive. The motion pair adopts non-oil lubricating bearing and linear ball bearing, and that make it of high precision, easy operation, convenient maintenance and wide processing range. One of the machine heads can be used for welding variable angles, so it meets users requirement for welding special shaped window like arch window. The 4 machine heads can be used alone or jointly. Through the arbitrary combination, it enable welding for such shapes as ┗ ┣ ┏┳ ┏┓ ┳ ┳┳ ┳┳┳ ┳┳╋ ╋╋╋ ╋╋ ╋ .It is the ideal equipment for welding of PVC win- doors.