Method for producing a metal elements-resin insert, a connector block for injectors, and a method for producing the connector block

A method of producing a connector block for supplying electric signals to a plurality of electric devices through a plurality of conductive metal elements embedded in a resin material, said method comprising steps of:

• placing said conductive metal elements in place within a first cavity of a first mold assembly;
• injecting molten resin into said first cavity of said first mold assembly to preform a plurality of support members at a plurality of positions and hold said conductive metal elements fixedly by said support members at said plurality of positions;
• removing said fixedly held conductive metal elements from said first mold assembly and placing said removed conductive metal elements and said support members in place within a second cavity of a second mold assembly;
• and
• injecting molten resin into said second cavity of said second mold assembly to embed said conductive metal elements and said support members substantially wholly within said molten resin wherein said first mold assembly is provided with a protrusion extending into said first cavity and a hole forming a part of said first cavity so that after said first injecting step at least one of said support members is provided with a support pin aperture and a positioning protrusion corresponding to said protrusion and said hole, respectively, wherein said second mold assembly is provided with a support pin extending into said second cavity, and wherein said removing and placing step includes a step of engaging said support pin aperture of said support member with said support pin of said second mold assembly to support said support member in said second cavity with said positioning protrusion of said support member in contact with an inner wall of said second mold assembly.

A method of producing a connector block for supplying electric signals to a plurality of electric devices through a plurality of conductive metal elements embedded in a resin material, said method comprising steps of:

• injecting molten resin into a first cavity of a first mold assembly to preform a plurality of support members for said conductive metal elements;
• fixedly holding said conductive metal elements in a bundle at a plurality of spaced positions by said support members so that said conductive metal elements extend parallel to one another;
• placing said held conductive metal elements bundle in position within a second cavity of a second mold assembly, said second cavity being in a shape which corresponds to said connector block and enables said support members to contact an inner wall of said second mold assembly only at plural locations;
• and
• injecting molten resin into said second cavity of said second mold assembly to substantially cover all of said conductive metal elements and said support members by said injected molten resin except for portions thereof at which said electric signals are received and supplied to said electric devices wherein said first mold assembly is provided with a protrusion extending into said first cavity and a hole forming a part of said first cavity so that after said first injecting step at least one of said support members is provided with a support pin aperture and a positioning protrusion corresponding to said protrusion and said hole, respectively, wherein said second mold assembly is provided with a support pin extending into said second cavity, and wherein said removing and placing step includes a step of engaging said support pin aperture of said support member with said support pin of said second mold assembly to support said support member in said second cavity with said positioning protrusion of said support member in contact with an inner wall of said second mold assembly.