Fire stopping collar core material forming die

Abstract

The invention relates to the technical field of fire stopping collar machining equipment, and particularly discloses a fire stopping collar core material forming die. The fire stopping collar core material forming die comprises a male die, a female die, a stripper die, a die core and a connecting flange, wherein one end of the die core is fixed in the center of the connecting flange; the female die sleeves the die core and one end of the female die is fixed with the connecting flange; a die cavity capable of pressing out a fire stopping collar core material is formed between the die core and the female die; connecting legs which are spaced from one another are arranged at one end of the stripper die; the stripper die is inserted in the die cavity and the connecting legs of the stripper die penetrate through the connecting flange to be connected with a stripper die connecting plate; one end of the male die is connected with a male die connecting plate; and the other end of the male die can be inserted in the die cavity and is in sliding fit with the die cavity. Edge chipping, corner chipping and the like of a fire stopping collar core material produced by the die disclosed by the invention are not caused easily, the forming quality is high, and the fire stopping collar core material can be conveniently assembled with a fire stopping collar main body in the later period.

Description

technical field [0001] The invention relates to the technical field of fire-stop ring processing equipment, in particular to a mold for forming a core material of a fire-stop ring. Background technique [0002] The core material of the fire-stop ring is an important part of the fire-stop ring, and the density of the core material must be controlled within a certain range in order to achieve a suitable cost performance. Too dense will affect the effect of flame retardant expansion, but also increase the cost. Too loose will increase the difficulty of demoulding after molding, and it will also easily lead to serious dimensional shrinkage of the core material after drying, which will affect the assembly quality. At present, the core material forming molds for fire retardant rings on the market all use a set of forming molds to produce two semi-cylindrical bodies at a time. Due to the influence of the frictional resistance factors increased by the sharp corners of the two semic...

AI Technical Summary

Problems solved by technology

Too dense will affect the effect of flame retardant expansion, but also increase the cost

Too loose will increase the difficulty of demoulding after molding, and it will also easily lead to severe shrinkage of the core material after drying, which will affect the assembly quality

At present, the core material forming molds for fire retardant rings on the market all use a set of forming molds to produce two semi-cylindrical bodies at a time. Due to the influence of the frictional resistance factors increased by the sharp corners of the two semicircles, it is easy to cause loose core materials Defects such as straight edge sinking and edge chipping occur during the returning process, which will not only affect the appearance quality of the product after being installed in the main body, but also require rework and replenishment to meet the quality requirements, increasing labor costs and reducing production efficiency

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