Production process and device for machining PE double-wall corrugated pipe with socket and spigot on line

Abstract

The invention discloses a production process and device for machining a PE double-wall corrugated pipe with a socket and a spigot on line. A manner for forming the continuous pipe includes sequential circulation of a straight pipe section, a socket / spigot section, a symmetric socket / spigot section, a straight pipe section, a spigot / socket section and a symmetric spigot / socket section. When the formed continuous pipe is cut, the pipe is cut in the symmetric axis position of the socket / spigot section and the symmetric socket / spigot section so that a unit pipe with one end being a spigot section, the other end being a socket section and the middle being a straight pipe section can be obtained. The production process and device have the beneficial effects that when the pipe is produced, due to the fact that the structures of the spigot / socket section and the symmetric spigot / socket section are symmetric, a transitional part does not need to be designed, and no waste is generated in the whole manufacturing process.

Description

technical field

[0001] The invention relates to the field of plastic pipe processing technology, in particular to a production technology of PE double-wall corrugated pipe. Background technique

[0002] PE double-wall corrugated pipe is a kind of plastic structural wall pipe with polyethylene as raw material, processed by extrusion and special molding process, with smooth inner wall and closed corrugated outer wall.

[0003] PE double-wall corrugated pipes are generally connected by sockets. One end of the pipe is a socket, and the other end is a socket. The socket and socket are made online. When the pipe is formed, when the tube blank is extruded from the mold, a group of forming modules that move circularly along the track of the bellows forming machine are controlled by the forming process to form a pipe with a smooth inner wall and the same outer wall shape as the cavity of the forming module. In the prior art, the general process design is to process a pipe every time...

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