Polytetrafluoroethylene powder molding machine and molding method thereof

Abstract

The invention discloses a polytetrafluoroethylene powder forming machine and a forming method thereof. The polytetrafluoroethylene powder forming method comprises the following steps: (S1) a PLC judges if powder is fed according to a powder depth of a stirrer sensor; (S2) the PLC judges if the powder is stirred according to the powder depth of the stirrer sensor; and (S3) after the stirred powderis stood by a preset cooling time length, the PLC controls an execution mechanism to form the stirred powder through pressure. In the polytetrafluoroethylene powder forming machine and the forming method thereof, the PLC controls each execution mechanism to execute corresponding actions according to detecting results of each sensor, so that the steps of loading, stirring, cooling, filling, die cutting and ejection are finished with higher automation degree, the synchronous operation of multiple workpieces is realized, and the consistency of finished products and the production efficiency are improved.

Description

technical field [0001] The invention belongs to the technical field of polytetrafluoroethylene automatic molding control, and in particular relates to a polytetrafluoroethylene powder forming machine and a forming method of the polytetrafluoroethylene powder forming machine. Background technique [0002] PTFE material has outstanding corrosion resistance, and is widely used in the processing of butterfly valves, sealing sheets and other workpieces. However, due to the inherent characteristics of PTFE materials, such as high melt viscosity and powder surface charged and easy to agglomerate, the development of processing technology for PTFE materials is relatively slow. [0003] At the same time, the existing processing of PTFE materials usually requires manual intervention to complete the steps of feeding, stirring, cooling, filling, die-cutting, and ejection. Obviously, the above-mentioned steps completed by manual operation, on the one hand, require high manual operation r...