Mold for preparing variable diameter glass fibre reinforced plastic pipeline

Abstract

The invention belongs to the field of die technique, and particularly discloses a die used for preparing variable-diameter FRP pipe. The main technical proposal is as follows: a long rotation shaft is started by a power mechanism; the rotation shaft is sleeved by at least two cylindrical dies; the cylindrical die consists of a cylinder part and a structure with the end in cone shape, wherein, the cone mouth of the cylindrical die is sleeved on the rotation shaft; the cone mouths of other cylindrical die are respectively sleeved on the cylinder part of the cylindrical die; and the other end of the cylindrical die is respectively and oppositely fixed with the rotation shaft. The die used for preparing the variable-diameter FRP pipe can directly produce the die which can directly produce the variable-diameter FRP pipeline which is integrated into a whole and has no joint seam, and overcomes the defects that the variable-diameter FRP pipeline which is prepared by manual pasting has non-uniform bearing performance and is easy to seep. The die can prepare variable-diameter FRP pipes of different specifications, greatly improves the utilization ratio of the die and reduces the production cost.

Description

technical field [0001] The invention belongs to the technical field of moulds, and in particular relates to a mold for preparing variable-diameter FRP pipes. Background technique [0002] At present, FRP pipes with variable diameters are all produced by segmental preparation and manual pasting. That is to produce pipe sections of different diameters and variable-diameter connecting pipe sections, and then connect the variable-diameter connecting pipe sections to pipes of different diameters through a manual pasting process to prepare variable-diameter FRP pipes. This variable-diameter pipe and its preparation process have the following defects: First, in the above-mentioned production process of the FRP pipe, the variable-diameter connecting pipe section and the connection between the connecting pipe section and the pipe section of different pipe diameters can only be pasted by hand. Therefore, there is a defect that the manufacturing process of the variable-diameter FRP pi...

AI Technical Summary

Problems solved by technology

This variable-diameter pipe and its preparation process have the following defects: First, in the above-mentioned production process of the FRP pipe, the variable-diameter connecting pipe section and the connection between the connecting pipe section and the pipe section of different pipe diameters can only be pasted by hand. Therefore, there is a defect that the manufacturing process of the variable-diameter FRP pipe is complicated and labor-intensive; secondly, due to manual pasting, the materials of the variable-diameter connecting pipe section and the connecting joint between the connecting pipe section and the FRP pipe section are not the same , and the two are connected by paste, so the pressure-bearing perform...

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