Detailed Introduction

This two-plate long strip connector mold is professionally designed for thin elongated electronic plastic connectors, solving bending deformation, inconsistent terminal slot size and ejection jamming issues during injection molding.

The mold is divided into front fixed mold plate and rear moving mold plate. The fixed side forms the outer contour of long strip connector, while the moving side carries integrated long strip core with dense terminal slot micro-structures. Four thick guide pins at the four corners realize high parallelism mold closing; built-in disc spring ejection mechanism provides uniform ejection force to avoid bending thin strip products during demolding. The long strip cavity adopts independent embedded design, which can be disassembled separately for micro slot polishing, repair or replacement without replacing the entire mold base. Multiple reserved cooling holes along the long cavity effectively balance mold temperature and reduce warpage of thin long plastic parts.

Complete Precision Machining Workflow

1. 5-axis CNC rough milling for mold base outline and long cavity rough forming
2. Vacuum heat treatment to homogenize steel hardness and reduce thermal deformation of long mold plates under continuous high-temperature injection
3. Precision surface grinding to control mold plate flatness and parallelism within ±0.002mm
4. Sinker EDM & wire cut WEDM for dense tiny terminal slots and fine linear contour of strip connector
5. Multi-stage mirror polishing to eliminate burrs on micro slots and reduce plastic adhesion
6. Optional PVD anti-wear coating for inserts molding glass-fiber reinforced high-temperature plastics

All mold components pass full 3D coordinate measuring inspection to meet strict drawing tolerance standards. Custom development is fully supported based on customer connector samples or engineering drawings: mold steel grade, strip length, terminal slot layout, spring ejection force and cooling circuit layout can be adjusted according to plastic material, product wall thickness and daily output requirements. The split two-plate layout simplifies installation and daily maintenance, significantly lowering reject rates of long thin electronic strip connectors.

Specification Table