EVA two-color foam molding machine and medium-mold translation device thereof

Abstract

The invention discloses an EVA two-color foam molding machine and a medium-mold translation device thereof. The medium-mold translation device comprises two mold sliding frames, two transmission chainsets, two carrying plates and a synchronous shaft, wherein the two mold sliding frames are connected with guide columns of the foam molding machine and horizontally extend front and back; the top ofeach mold sliding frame is provided with a sliding groove extending front and back; the two transmission chain sets are built in the mold sliding frames on the corresponding sides, and the transmission directions of the two transmission chain sets are parallel to the extending direction of the sliding grooves; the bottoms of the carrying plates are fixedly connected with the transmission chain sets correspondingly; the tops of the carrying plates protrude relative to the sliding grooves; the tops of the carrying plates are provided with positioning columns; the tops of carrying plates are connected with rolling wheels which are in rolling fit with the top surfaces of the mold sliding frames; and the synchronous shaft is horizontally connected to the same side of the two transmission chainsets and driven by a power mechanism. The friction resistance is low, smoothness is achieved, the hardness and abrasion resistance requirements of the mold sliding frames and the carrying plates are low, the service life is long, the transmission chain set are not translocated horizontally front and rear and left and right, the carrying plates are not deviated in the front-back translation process, and monochrome and dichromatism can be achieved.

Description

technical field [0001] The invention relates to the technical field of rubber and plastic processing equipment, in particular to an EVA two-color foam molding machine and a middle mold translation device. Background technique [0002] Footwear is an indispensable product in our daily life, and my country is also a major producer of footwear, so it has a large demand for various types of shoe machines, and there are more EVA foam molding machines involved. EVA two-color foam molding machine generally includes an upper mold base, a lower mold base and a sliding middle mold frame that can translate back and forth. The mechanism slides back and forth. This kind of sliding form mechanism has high requirements on the hardness and wear resistance of the chute and the sliding mold base. It needs to be treated with wear resistance and adopts nodular cast iron, otherwise the service life will be short, and the driving pressure of the mold transfer cylinder will be too high. Higher, t...

AI Technical Summary

Problems solved by technology

EVA two-color foam molding machine generally includes an upper mold base, a lower mold base and a sliding middle mold frame that can translate back and forth. The mechanism slides back and forth. This kind of sliding form mechanism has high requirements on the hardness and wear resistance of the chute and the sliding mold base. It needs to be treated with wear resistance and adopts nodular cast iron, otherwise the service life will be short, and the driving pressure of the mold transfer cylinder will be too high. Higher, the load on the chute structure is also very large, it is easy to cause the chute to be damaged, and the linearity of motion cannot be guaranteed and the mold clamping operation cannot be performed.

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