Vacuum sizing spraying box for polyvinyl chloride pipe production line

Abstract

The invention discloses a vacuum sizing spray box for a polyvinyl chloride pipe production line, and relates to the technical field of vacuum sizing spray boxes, the vacuum sizing spray box comprises a polyvinyl chloride pipe vacuum sizing spray thrower, a spray box and a rotary guider, the polyvinyl chloride pipe vacuum sizing spray thrower comprises the spray box, and rotating guiders are detachably installed on the outer surfaces of the two sides of the spraying box, and clamping blocks are detachably installed on the upper inner surface and the lower inner surface of the right side of the spraying box. A water source is guided into a high-pressure atomization water spraying hole in cooperation with a water inlet pipe hole, the water source is guided in cooperation with an auxiliary water guiding pipe, then side face atomization spraying is conducted through an atomization auxiliary spraying head, the water source is broken and emitted through a water source breaking thorn head at one end of a high-pressure atomization head, and the water source spraying device has the advantage of conducting atomization spraying on the water source; the problem that the surface of the pipe is sunken due to the fact that the impact force of the water source is too large is solved, and the effect of atomizing and spraying the water source is achieved.

Description

technical field [0001] The invention relates to the technical field of a vacuum sizing spray box, in particular to a vacuum sizing spray box for a polyvinyl chloride pipe production line. Background technique [0002] The vacuum sizing box is an indispensable equipment in the plastic pipe production line, which plays a role in shaping and cooling. The existing vacuum sizing box generally includes a box body, and a spray system is arranged in the box body. After the tube blank of the pipe comes out from the extrusion port of the screw extruder die, it enters the sizing sleeve of the vacuum sizing box for finalization, and Cooled by spray water in the box. There are following problems at prior art: [0003] 1. When the pipe blank of the pipe comes out of the extrusion port of the screw extruder die, the surface of the pipe will contain a large amount of high temperature, and the pipe at high temperature will be in contact with oxygen for a long time, which will cause the sur...

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Problems solved by technology

[0005] The invention provides a vacuum sizing spray box for a polyvinyl chloride pipe production line, one of the purposes of which is to have the characteristics of extracting as much air as possible inside the pipe when vacuum cleaning the pipe, so as to solve the problem of high temperature The long-term contact of the pipe with oxygen will cause the surface of the pipe to oxidize and turn yellow; another purpose is to solve the problem that the bottom of the pipe is always squeezed during transportation, which may cause the pipe to rot. There is a problem of deformation on the bottom surface to achieve the effect of rotating the pipe to ensure that the surface on each angle of the pipe can be in contact with the bottom machine

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