Welding device for socket pipe with plastic-wound structural wall and connecting technology thereof

Abstract

The invention discloses a welding device for a socket pipe with a plastic-wound structural wall and a connecting technology thereof. An inner cavity extruder is arranged on a right-side rail of a spindle box. The inner cavity extruder head of the inner cavity extruder penetrates through a spindle hole of the spindle box. An inner scraper which can move freely is arranged at the end of the inner cavity extruder head. Two upper-side outer clamping jaws are fixedly provided with upper semicircular dies, and two lower-side outer clamping jaws are fixedly provided with lower semicircular dies. The inner scraper extrudes, scrapes and forms the inner cavity of a socket head formed through rotational moulding when the socket head formed through rotational moulding is welded with the pipe with the plastic-wound structural wall, and cooling and setting are conducted through air. Compared with the prior art, the pipe with the plastic-wound structural wall and the socket head formed through rotational moulding are connected firmly, the pressure intensity of a whole pipe system is maintained the same, cracking or water seepage of local districts of the pipe system is avoided, secondary pollution of underground water is prevented effectively, industrialized production of the pipe with the plastic-wound structural wall and the socket head is achieved, line production is achieved, and the work efficiency is improved by 50%.

Description

technical field [0001] The invention relates to a welding device and a connecting process for a wall socket pipe of a plastic winding structure, and relates to the technical field of large-diameter fluid conveying pipes, and is applied to the connection between a wall pipe of a plastic winding structure and a socket plug. Background technique [0002] In recent years, with the popularization and application of plastic pipes, under the same pressure conditions, plastic pipes have gradually replaced concrete pipes and cast iron pipes due to their corrosion resistance and long service life; at the beginning, HDPE materials were used to make solid walls Although its performance is excellent, the production cost is very high, and it is difficult to popularize and apply it in a large area. Then, plastic winding structural wall pipes came into being, which not only maintained the performance of solid wall pipes, but also saved a lot of plastic raw materials. However, the plastic w...

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Problems solved by technology

However, the plastic winding structure wall pipes produced by the prior art are straight pipes. During construction, the connection of two adjacent pipes generally adopts welding, clamp connection or socket connection for on-site construction. The operating conditions of on-site construction are relatively Poor, the construction efficiency is relatively low, because the connection method is an outsourcing connection method, so that the pressure strength of the entire piping system cannot be consistent. In addition, the fluid in the piping system is cracked and leaking due to the damage of the outer wall. Occurs from time to time, and the effect of use is not completely satisfactory

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