Rubber rod for secondary processing of plastic pipe and secondary processing process of plastic pipe

Abstract

The invention discloses a rubber rod for secondary processing of plastic pipes and secondary processing process of plastic pipes. The rubber rod includes a rubber rod body; one end of the rubber rod body is provided with an air inlet channel; the side wall of the rubber rod body is provided with a plurality of air outlets communicated with the air inlet channel. The processing process using the rubber bar comprises the steps of: 1, selecting a pipe to be bent; 2, heating the part to be bent of the pipe; 3, stuffing the rubber rod body into the pipe; 4, placing the pipe to be bent between a fixed mold and a movable mold, and assembling a fixed mold and the movable mold, thereby bending the pipe; 5, inflating the inside of the rubber rod body through the air inlet channel, and fitting the side wall of the bent part of the pipe with a cavity by the expanded rubber rod body; 6, discharging gas in the rubber rod body to restore the original size of the rubber rod body, so as to remove the rubber rod body from the pipe inside of the pipe; and 7, removing the pipe and cooling.

Description

technical field [0001] The invention relates to the field of plastic pipe processing, more specifically, it relates to a rubber rod for secondary processing of plastic pipes and a secondary processing technology of plastic pipes. Background technique [0002] Pipes are necessary materials for construction projects. Commonly used are water supply pipes, drain pipes, gas pipes, heating pipes, wire conduits, rainwater pipes, etc., and due to the particularity of some construction environments, it is necessary to bend part of the pipe fittings. At present, some factories The company will choose to manufacture corresponding molds to make the pipes be formed at one time during injection molding, but in this way, firstly, the structure of the mold will be too complicated and the production cost will be high. Secondly, this type of mold can only process one type of pipe , when another pipe needs to be processed, another mold needs to be designed. [0003] At present, some factories...

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Problems solved by technology

[0002] Pipes are necessary materials for construction projects. Commonly used are water supply pipes, drain pipes, gas pipes, heating pipes, wire conduits, rainwater pipes, etc., and due to the particularity of some construction environments, it is necessary to bend part of the pipe fittings. At present, some factories The company will choose to manufacture corresponding molds to make the pipes be formed at one time during injection molding, but in this way, firstly, the structure of the mold will be too complicated and the production cost will be high. Secondly, this type of mold can only process one type of pipe , when another pipe needs to be processed, another mold needs to be designed

[0003] At present, some factories will carry out secondary processing on the pipes processed by injection molding, so that the processed pipes are placed in a set of molds, and the purpose of bending the pipes is achieved by squeezing the parts of the pipes that need to be bent through the moving mold. This method will cause the pipe to be flattened or the surface to be dented during the process of the mold bending the pipe, and after processing, because the temperature at the bend of the pipe is high at this time, it is necessary to conduct a preliminary inspection of the pipe. cooling treatment to prevent deformation due to the low hardness of the pipe bend when the pipe is taken out, but this will seriously affect the processing efficiency

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