A forming process of steel wire reinforced composite pipe

Abstract

The invention discloses a molding process of a steel wire reinforced composite pipe, which comprises the following steps: S1, a core pipe extruder melts and extrudes the core plastic and forms a core pipe through a core pipe mold; S2, the core pipe passes through a first cooling box Cooling; S3, the first pulling machine pulls the core tube according to V 管0 Axial conveying; S4, the wire winding machine winds the forward and reverse steel wires on the core tube in turn, and the winding speed of the forward and reverse steel wires is V 绕0 ; S5, the rubber layer extruder extrudes the rubber material and coats it on the surface of the core tube through the rubber coating die to form a rubber layer and air-cools it; S6, the outer layer extruder melts and extrudes the outer layer of plastic and passes it through the covering die Coated on the outer surface of the rubber layer and cooled by air; S7, cooling in the second cooling box; S8, pulling the composite pipe axially transported by the second tractor; S9, sawing the composite pipe to a fixed length, and the steel wire winding machine runs along the pipe in this process The direction moves longitudinally, and the relative speed of the forward steel wire and the reverse steel wire and the core tube is reduced, providing enough time for changing discs.

Description

technical field [0001] The invention relates to the field of composite pipes, in particular to a forming process of a steel wire reinforced composite pipe. Background technique [0002] In the production of steel wire reinforced composite pipe, it is necessary to use a steel wire winding machine to wind the steel wire on the outer surface of the core pipe of the composite pipe, so as to form a steel wire reinforcement layer on the outer surface of the core pipe, and then coat the outer surface of the steel wire reinforcement layer with steel wire. The glue is then coated with an outer plastic layer to finally form a steel mesh reinforced composite pipe. In the production process of composite pipes, there are the following disadvantages: [0003] 1. The current wire winding requires the use of a wire winding machine. During the winding process of the wire winding machine, multiple wires are paid off from the pay-off reel. After the wire is paid off to a certain amount, the p...

AI Technical Summary

Problems solved by technology

[0003] 1. The current steel wire winding requires the use of a steel wire winding machine. During the winding process of the steel wire winding machine, multiple steel wires are released from the single pay-off reel. After a certain amount of wire is released, the single pay-off reel needs Replacement, and the time for changing the single pay-off reel is relatively tight, and skilled operators are needed to complete it. Therefore, in order to ensure sufficient time for changing the reel, the pulling speed of the entire composite pipe production line should not be too fast; the speed is too fast The speed of winding must also be increased, which affects the worker's disk changing operation;

[0004] 2. In the wire winding machine, the steel wire needs to change direction and bend more times, which leads to messy routing and requires a large traction force, which also affects the strength of the steel wire;

[0005] 3. During the production process of the current composite pipe, since the core pipe and the formed composite pipe are both drawn and formed horizontally, the core pipe will always have a certain deformation due to the influence of gravity, especially when the core pipe is cooled after forming They are all cooled from the outside to the inside, so the deformation of the inner wall of the core tube is more serious

Images