Pipe end sealing device incapable of steel-plastic composite pipe

Abstract

The steel-plastic composite pipe end sealing device comprises a sealing heating ring, the inner side wall of one end of the sealing heating ring is provided with a composite inserting groove allowinga to-be-sealed steel-plastic composite pipe to be inserted, and a sealing ring used for sealing the pipe end of the to-be-sealed steel-plastic composite pipe is arranged in the composite inserting groove. An inner-diameter non-heating ring is arranged on the inner side wall of the sealing heating ring, a first cooling water channel is arranged in the inner-diameter non-heating ring, cooling watercan flow in the inner-diameter non-heating ring through the first cooling water channel, an outer-diameter non-heating ring is arranged on the outer side wall of the sealing heating ring, and a secondcooling water channel is arranged in the outer-diameter non-heating ring. Cooling water can flow in the outer-diameter non-heating ring through the second cooling water channel. The sealing device has the advantages that molten plastic of the pipe end of the steel-plastic composite pipe and the sealing ring cannot overflow, and the effect that a whole sealing pipe section is flat, smooth and freeof overflowing is achieved.

Description

technical field [0001] The invention relates to the technical field of steel-plastic composite pipe end sealing, in particular to a steel-plastic composite pipe end sealing device that does not overflow. Background technique [0002] The steel-plastic composite pipe has the characteristics of hygienic, non-fouling, corrosion-resistant, and non-rusting plastic pipes. At the same time, it has the advantages of high pressure bearing and impact resistance of the steel pipe. There will be flashing on the surface, which will affect the quality and appearance of the pipe end seal. Contents of the invention [0003] In order to solve the problems of the technologies described above, the present invention provides the following technical solutions: [0004] The invention provides a steel-plastic composite pipe end sealing device that does not overflow. [0005] It includes a sealing heating ring, the inner wall of one end of the sealing heating ring is provided with a composite s...

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Problems solved by technology

[0002] The steel-plastic composite pipe has the characteristics of hygienic, non-fouling, corrosion-resistant, and non-rusting plastic pipes. At the same time, it has the advantages of high pressure bearing and impact resistance of the steel pipe. There will be flashing on the surface, which will affect the quality and appearance of the pipe end seal

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