Two-stage stroke core-pulling structure in refrigerator foam mold

Abstract

The invention discloses a second level stroke core-pulling structure in a foaming mold of a refrigerator. The second level stroke core-pulling structure in the foaming mold of the refrigerator is characterized in that a core-pulling block which can slide relative to a swelling plate in the core-pulling direction is arranged in the middle part of the swelling plate in a sliding sleeve mode, and the core-pulling block is fixed on a core-pulling block fixing base; the swelling plate is provided with a limiting block, the two ends of the core-pulling block fixing base are limited inside a limiting groove of the limiting block, the width of the limiting groove is used for limiting the displacement distance of the core-pulling block fixing base relative to the swelling plate in the core-pulling direction, and the core-pulling block fixing base can drive the swelling plate to move in the core-pulling direction through the limiting block. According to the second level stroke core-pulling structure in the foaming mold of the refrigerator, the second level stroke can be formed through the transmission of the limiting block, design difficulty is lowered, the mold can be assembled simply and conveniently, materials are reduced, meanwhile, stability and strength are enhanced, and working efficiency is greatly improved.

Description

technical field [0001] The invention relates to a box body foaming mold. Background technique [0002] At present, most of the box foaming molds have adopted the expansion and contraction mechanism. This structure has a small amount of foaming deformation and is convenient for production and maintenance. However, some special or complex refrigerator boxes have to be added to the expansion and contraction mechanism due to production needs. A core-pulling mechanism is installed to further improve the foaming quality of the cabinet. Usually the stroke of the expansion and contraction mechanism is controlled at about 5mm, otherwise the gap between the main body and the expansion plate will cause the foaming effect of the box to be unsatisfactory, and the stroke of the core-pulling mechanism is usually relatively large, about 15mm, but in the prior art A set of actuators cannot complete two strokes at the same time. Moreover, the cavity space of the box foaming mold is limited,...

AI Technical Summary

Problems solved by technology

Usually the stroke of the expansion and contraction mechanism is controlled at about 5mm, otherwise the gap between the main body and the expansion plate will cause the foaming effect of the box to be unsatisfactory, and the stroke of the core-pulling mechanism is usually relatively large, about 15mm, but in the prior art A set of actuators cannot complete two strokes at the same time

Moreover, the inner cavity space of the box foaming mold is limited, so arranging two sets of mechanisms in this limited space is not only difficult in design, but also difficult to start with when the mold is assembled and maintained.

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