Rubber pipe and plate continuous foaming and molding equipment

Abstract

The invention discloses a rubber pipe and plate continuous foaming and molding equipment. In the invention, an infrared preheating section, a plurality of hot air circulating heating sections and a heat insulating and cooling section are sequentially arranged along a production line direction, wherein main bodies of all the sections are all rectangular box bodies, and the frameworks of the box bodies are all formed by welding profile steel; the inner surfaces and the outer surfaces of the box bodies are all sealed by thin plates to form jacket structures; heat insulating material is filled and compacted in the jacket spaces; and each the box body is internally provided with a conveying roller way. The foaming, molding and shaping equipment comprising three processes of infrared ray heating, hot air circulating heating and cold / hot air circulating heat insulating and cooling adopts a technology that the preheating box bodies can be opened, closed and sealed; and the structures of the four-inlet-air / four-return-air channel type heating sections and the four-inlet-air / one-return-air channel type heat insulating and cooling section can realize quick and uniform preheating, gradual and uniform heating and slow and uniform cooling and improve the product molding quality.

Description

technical field [0001] The invention relates to the field of machinery manufacturing equipment, in particular to a continuous foaming and shaping equipment specially used for producing rubber and plastic foam pipes and plates. Background technique [0002] Rubber and plastic continuous foaming and molding and shaping equipment is one of the main special equipment for foaming, molding and shaping for the manufacture of rubber and plastic pipes and plates. "Rubber-plastic" here refers to rubber or rubber-plastic blended materials as the main raw material as the foaming material. [0003] In the prior art, the Chinese patent "Heating Furnace in Rubber-Plastic Foaming Production Line" (CN 201053818Y) provides a five-stage heating furnace equipment for producing rubber-plastic foam sheets. The structural feature of the three-return air hot air circulation is to improve the uniformity of the temperature in the furnace. In this heating furnace, two air inlet passages and three re...

AI Technical Summary

Problems solved by technology

This technology has the following disadvantages: first, the distance between the air inlet channel and the air outlet channel is relatively close, the heat utilization rate is low, and the energy consumption is large; Long diffusion heat transfer time and longer heating furnace, especially for thicker rubber and plastic plates; third, no heating furnace insulation technology involved

The disadvantages of these three technologies are: first, the heating system is all installed on the inner wall of the furnace, which is inconvenient for maintenance; Hot air flows to the outlet, causing heat loss

The disadvantage of this technology is that only the mechanical door is used to adjust the air volume.

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