Production process and device of solar foaming insulation pipe
A production process and a technology for thermal insulation pipes, which are applied in the field of production technology and equipment of solar foam thermal insulation pipes, can solve the problems of freeze cracking, poor thermal insulation performance, and easy freezing of thermal insulation pipes, and achieve the effects of changing easy freezing and improving production efficiency.
Inactive Publication Date: 2016-07-27
杜连合
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Problems solved by technology
However, the produced insulation pipes have the disadvantages of easy freezing, cracking and poor thermal insulation performance.
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[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0018] see figure 1 with figure 2 , in the embodiment of the present invention, a kind of solar foam insulation tube production process, the steps are:
[0019] (1) Firstly, the material is extruded from the inner tube extruder, then shaped by the vacuum sizing forming machine, then pulled out by the first tractor, and sent to the co-extrusion head;
[0020] (2) Low-density polyethylene high-pressure foaming material and foaming regulator are fully mixed; ...
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The invention discloses a production process and device of solar foaming insulation pipe. The process steps are as below: first, extruding the materials from an inner tube extruder, then molding by a vacuum sizing molding machine, pulling by a first tractor, and sending the materials into a coextrusion-type head; thoroughly mixing a low density polyethylene high pressure foam material and a foaming regulator; adding the mixed material into a foam extruder, sufficiently melting in the foaming extruder by high pressure and high temperature of a lengthening mixing screw combined with the auxiliary catalysis of liquefied butane gas to reach a coextrusion head; integrating the material extruded by a sheath extruder and the material extruded by the foaming extruder within the coextrusion head; coating an inner tube sent by a first tractor with the extruded material, foaming, sending into a first cooling air bellows and a second cooling air bellows for shaping; and pulling out by a second tractor, and conveying the shaped tubing to a winding machine. The invention substantially increases production efficiency and has good insulating pipe performance.
Description
technical field [0001] The invention belongs to the manufacturing field of heat preservation pipes, in particular to a production process and equipment for solar foam heat preservation pipes. Background technique [0002] PE insulation pipe production line is a kind of plastic pipe production line, with unique design, adopts BM separate high-efficiency screw, high degree of automation, convenient operation, continuous production, stable and reliable. It is mainly composed of extruder, machine head, cooling water tank, tractor, cutting machine, tube clamping machine, bracket and electrical control part, etc. The middle layer is polyurethane foam layer, and the inner layer is steel pipe. The PE insulation pipe production line is mainly used for the production of large-diameter PE insulation pipes, and can also produce water supply pipes and drainage pipes. The pipe has many characteristics such as non-toxic, odorless, non-corrosive, anti-aging, and good weather resistance. Th...
Claims
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IPC IPC(8): B29C44/32B29C47/00
Inventor 杜连合
Owner 杜连合