US 7,402,037 B2Granted

Mold clamping unit

AssigneeLS Cable Ltd.

InventorsSung-wook Jung, Sung-chul Shin, Young-ju Kang, Byeong-geun Jang, Jin-young Kim

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Abstract

The mold clamping unit comprises a column mounted in a transfer means and moving in forward and backward direction; a mold clamping piston in which clamping operation and clamping-releasing operation are performed; plurality of column teeth disposed on a surface of the column along an axial direction of the column; center bore provided in a central of the mold clamping piston; clamping tooth seating groove with a plurality of clamping teeth inside the mold clamping piston contacting the center bore; rotating plate with plurality of clamping tooth guide grooves separated from the clamping teeth in the axial direction of the column; and a teeth rod positioned in each of the clamping tooth guide groove, wherein each teeth rod is connected to each clamping teeth during the rotation of the rotating plate, for moving each clamping tooth in a central or radial direction of the rotating plate and clamping of the clamping tooth and the column can proceed.

Claims15

Dependent claims

A mold clamping unit comprising:

a column mounted in a transfer means and moving in forward and backward directions;
a mold clamping piston in which a locking operation with the column;
a plurality of column teeth disposed on a surface of the column along an axial direction of the column, a space between the column teeth being defined as a column groove by the column teeth;
a center bore provided in a central portion of the mold clamping piston so that the column can penetrate and can move through the center bore when the column moves in forward and backward directions;
a clamping tooth seating groove provided inside the mold clamping piston contacting the center bore along a circumference of the center bore;
a plurality of clamping teeth seated in the clamping tooth seating groove in a circumferential direction;
a rotating plate in one side of the clamping teeth;
a plurality of clamping tooth guide grooves having a predetermined length provided on the rotating plate toward a center from an outer wall of the rotating plate;
and
a teeth rod positioned in each of the clamping tooth guide groove,
wherein each teeth rod is connected to each clamping teeth so that, when the rotating plate makes a rotational motion, each teeth rod can move in the clamping teeth guide groove, each clamping tooth can move in a central or radial direction of the rotating plate and clamping of the clamping tooth and the column can proceed.

8 more elements

A mold clamping unit comprising:

a first fixed platen and a second fixed platen separated from each other and disposed in parallel to each other;
a moving platen making a reciprocal motion and moving in a space between the first fixed platen and the second fixed platen;
a tie bar connecting the moving platen to the first and second fixed platens in a single unit and guiding moving of the moving platen;
a column whose one end is connected to the moving platen and in which column teeth having an uneven shape on a surface of the column along an axial direction and column grooves are sequentially arranged;
a mold clamping position in which a center bore is formed so that the column can penetrate the center bore and can move thereto and which transmits a mold clamping force to the column;
a plurality of clamping teeth which is provided in a position that is separated from each other in a circumferential direction of the column and which can be selectively attached or detached to or from the column groove of the column;
a rotating plate provided in a position that is separated from the clamping tooth in an axial direction of the column;
and
a teeth rod whose one end is connected to the clamping tooth and whose the other end is connected to the rotating plate, so as to transmit a rotation driving force of the rotating plate to each clamping teeth.

6 more elements

Dependencies are inferred from the claim text.