Fast Mould Change and Fast Cycle

Mechanical Structure and Pipeline System:

The steam chamber has a heat insulation die-mold cavity system, and an inner heat insulation system made from new macromolecular thermal insulation material is arranged inside the die-mold cavity, which can reduce heat loss of die cavity in the heating process and repeated heat wastes caused by rapid temperature drop in the demoulding process, therefore steam consumption can be saved by 30%.

All types are configured vertically with double hopper, each hopper is provided with 18 discharge holes, and the dimension of connector is DN25. Through a rotary level switch, the equipment has alarm and halt function if lack of materials, and also realizes the functions of pressure feed, vacuum feed and batch feed.

The quick couplings of the filling gun are quickly inserted, made from stainless steel. Three quick couplings are configured for totally matching with discharge holes of the hopper (namely three ways of compressed air for opening the gun, closing the gun, and feeding), which enables the quick couplings to be connected into the material gun conveniently.

Templates are made from high-strength steel plates, which are chamfered and welded by gas shielding welding process, and are treated by high temperature annealing after welded.

With diameter of Φ100mm*4, the guide rods of the equipment are made from 45# steel by high-frequency quenching, with thickness of hard chromium layer at 0.04-0.06mm.

Hydraulic System:

A digital encoder is used to control the stroke distance of mold opening and clamping, which is stable in speed conversion without pause and impact, realizes the safety protection function of mechanical, hydraulic and electrical triple interlocking, and meets the safety standard.   

Steam Heating System:

It is provided with a long-range control steam reducing valve for stabilizing flow, with control accuracy at ±0.2bar.

FY patented pilot-operated proportional control steam valve and balance valve are adopted to control pulse heating of main steam valve, the heating process is stable, and realizes low pressure big flow heating process in a real sense, so the steam consumption is less.

Electro-pneumatic proportional valve is conducive to control steam inlet pressure, ejection pressure, feed pressure and compression pressure of the hopper by adjusting pressure of compressed air, setting by touch screen.

Pressure sensor can achieve cavity pressure feedback, which is accurate.

The single equipment is provided with an efficient energy recycling system to assist the central vacuum system, which can greatly increase the vacuum efficiency, as the power consumption of vacuum is reduced over 50%, and vacuum cooling period is shorted greatly. Because the moisture content of products is not larger than 7%, the high temperature demoulding is achievable (with cavity temperature at 75¡æ).

Electrical Control System:

Electrical control system is equipped with premium brand PLC, realize real-time monitoring for operating status of equipment, and have several fault alarm and running protection functions.   

To use automatic protection and alarm systems such as numeric parameter display, fault detection, false alarm for position data, multi-mode running lights, detection and protection of motor running status can monitor each action of parts in production. It is available for upgrading of network management, networking with office computer for convenient management.

It only needs a stop period about half an hour to change molds quickly, which greatly improves the capacity of equipment, and eliminates potential safety hazards in installation of mold accessories inside the conventional eps making machines.

HANGZHOU FANGYUAN PLASTICS MACHINERY CO.,LTD.

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