Design of injection mould for clamping strip of refrigerator zero-degree room
By analyzing the structural characteristics of the clamping strip of the refrigerator zero-degree room,the design process of the injection mould was introduced.Through preliminary analy-sis,the gating system of"hot runner+ordinary runner"was determined.A"slider+inclined ejector pin"lateral core-pulling mechanism was designed to realize the demoulding of the external groove.The forming structure of the slider was composed of a large slider and four slider inserts.Because of the long demoulding stroke of the slider,the slider seat was used to extend the stroke and reduce the cost.The inclined ejector mechanism was consisted of the inclined ejector guide block and the inclined ejector seat with a safe distance of 3 mm.The combined ejection of"ejector pin+inclined ejector pin"was adopted to ensure that the plastics were uniformly stressed.Practice has proved that qualified products with complete filling and good surface quality could be obtained by using the injection mould.
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维普
