Tunnel slider for injection molding of an automotive door frame interior

Abstract

This utility model belongs to the field of mold technology, and in particular to a tunnel slider for an injection mold of automotive door frame interior trim. It includes a slider mechanism, comprising a main slider and a fixed block. The fixed block has an inclined guide post extending into the main slider at one end. One side of the main slider has at least one insert slider. This utility model achieves efficient demolding of complex undercut structures through the synergistic design of the inclined guide post and multiple insert sliders, significantly improving product yield. The staged demolding method effectively reduces local stress and avoids product damage. The design of wear-resistant blocks one and two extends the mold's service life, simplifies maintenance, and improves production efficiency. The guiding system composed of wear-resistant block one and pressure strips ensures motion accuracy, and the limit block prevents the main slider from overtravel, ensuring safe operation. The overall structure is compact and reliable, widely applicable to the production of plastic parts with side concave features, significantly reducing debugging difficulty and production costs, and meeting the needs of large-scale stable production.

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