Insert molding die, insert molding apparatus and insert molding method
AssigneeDenso Corporation
InventorsTsuyoshi Arai, Masayuki Furuhashi, Sayaka Okabe
Life of this patent
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Abstract
An insert molding die, an insert molding apparatus and an insert molding method are disclosed, wherein a pair of dies 10a, 10b are arranged in a manner capable of clamping, from axis X side, an insert part 2 arranged along axis X to be insert molded. The dies 10a, 10b include first separated dies 10a1, 10b1, second separated dies 10a2, 10b2 and third separated dies 10a3, 10b3 adapted to perform the clamp operation independently of each other.
Claims9
An insert molding die comprising:
- first and second dies arranged to clamp a molded part to be insert molded;
- wherein the first and second dies are separated from each other to permit independent clamping operation.
An insert molding apparatus comprising:
- a molding die, an extrusion die for sending the molten resin material toward the clamping surfaces of the molding die and a support unit for supporting the insert part in position on the molded part to be insert molded at the position where the molten resin material is extruded by the extrusion die;
- wherein the molding die includes first and second dies arranged to permit the clamping of the molded part, and
- wherein the first and second dies are separated from each other to permit independent clamping operation.
An insert molding method:
- wherein an insert part is supported in the molten resin material extruded in the shape of pipe, and while sucking the air, the insert part is shaped by first and second dies separated from each other to permit independent clamping operation;
- wherein the molten resin material extruded in the shape of pipe is clamped by a part of separated dies of the first and second dies, and the molten resin material is pressed against the neighborhood of the support side of the insert part thereby to seal the open forward end of the molten resin material;
- wherein the air is then sucked while at the same time clamping another separated die of the first and second dies thereby to cover and shape the molten resin material around the insert part;
- and
- wherein the clamping operation is performed by a separated die in standby state among the first and second dies so that the molten resin material extruded in the shape of pipe is cut off thereby to eject the molded part covered with the molten resin material.
An insert molding method for performing the extrusion molding using an insert molding apparatus configured to reciprocate between the position where the molded part after clamping by the molding die is cooled and ejected and the position where the molten resin material is extruded against the insert part by an extrusion die,
- wherein the molten resin material is extruded against the insert part at the position where the molten resin material is to be extruded against the insert part on the one hand, while the molded part after clamping by the molding die is cooled and ejected at the position where the molded part after clamping by the molding die is to be cooled and ejected on the other hand;
- and
- wherein the molding die is then brought to the position where the molten resin material is extruded against the insert part, followed by clamping the molding die at the particular extruding position through the extruded molten resin material, and the molding die thus clamped is brought to the position where the molded part is cooled and ejected on the one hand, while the insert part next to be insert molded is supported at the position where the molten resin material is extruded in the shape of pipe against the insert part on the other hand.
Dependencies are inferred from the claim text.