Vacuum water tank discharging end with pipe online roundness correction function

Abstract

The invention relates to the technical field of vacuum shaping water tanks, in particular to a vacuum water tank discharging end with a pipe online roundness correction function, which comprises a vacuum water tank, the discharging end of the vacuum water tank is provided with a discharging end, the discharging end comprises a sealing assembly and a roundness correction assembly, and the roundness correction assembly is rotatably connected with the sealing assembly. The sealing assembly is used for blocking the discharging end of the vacuum water tank, the sealing assembly comprises a sealing fixing ring and a sealing piece, the sealing piece is arranged in a ring hole of the sealing fixing ring, and the sealing fixing ring is fixed to the vacuum water tank; the roundness correction assembly is used for conducting roundness correction on the pipe at the discharging end of the vacuum water tank. Roundness correction is conducted on the pipes while the pipes are continuously and efficiently discharged, the automation degree is high, and the production efficiency is improved; meanwhile, circumferential all-directional rounding clamping of the pipe is achieved, and the rounding qualification rate of the pipe is high; automatic centering is achieved, rounding clamping of pipes with different outer diameter specifications is achieved, and universality is high.

Description

technical field [0001] The invention relates to the technical field of vacuum shaped water tanks, in particular to a discharge end of a vacuum water tank with online rounding of pipes. Background technique [0002] In the production process of polyolefin pipes, the pipes are first extruded from the extruder, and then enter the vacuum box with cooling and sizing under the traction of the tractor for vacuum sizing, and then enter the spray water tank for cooling and shaping. However, the temperature of the pipe extruded from the extruder is relatively high. During the cooling process of the pipe, it will sag and deform under its own weight due to insufficient cooling, so that the pipe is elliptical. The ellipticity of plastic pipes is an important indicator for checking whether the pipes are qualified. The ovality of pipes is measured according to the provisions of GB / T 8806 on the maximum outer diameter and minimum outer diameter of the same section. The calculation formula o...

AI Technical Summary

Problems solved by technology

The defects of this rounding method are: 1. The position of the roller is fixed, and it can only correct the specific position of the pipe in contact with the roller. Because the thermal deformation parts of the pipe are different, the elliptical deformation part of the pipe is not the same. It is a symmetrical arrangement. This method cannot realize the rounding of the entire section of the pipe, and there are still cases where the pipe is not round.

2. There is a lot of manual operation in the circle adjustment process, and the adjustment of the screw rod requires manual operation. Since the pipe from the discharge end of the shaped water tank is continuously moving in a straight line along the axial direction, the only way to increase the circle adjustment time of plastic pipes is by reducing the production speed of the entire production line. , in order to realize the calibration operation process, the production efficiency is low

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