Corrugated pipe forming apparatus
AssigneeDong-A Flexible Metal Tubes Co., Ltd.
InventorJinrim CHOI
Life of this patent
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Abstract
The present disclosure relates to a corrugated pipe forming apparatus including: a support block rotated by power of a motor; a bearing including an outer ring connected to an inner peripheral surface of the support block and an inner ring; a dies inserted into the inner ring in which at least a portion thereof is disposed inside of the support block, a screw protrusion forming a valley on a surface of the smooth pipe is formed; and a fastening ring. In the support block, a shielding wall covering a first gap formed between the first sidewall of the outer ring and the inner ring is formed to protrude inwardly from the first lateral side, and thus leakage of lubricating oil injected into the bearing is prevented.
Claims14
A corrugated pipe forming apparatus comprising:
- a support block rotated by power of a motor, in which a circular opening is formed therein;
- a bearing including an outer ring fixedly connected to an inner peripheral surface of the support block and an inner ring disposed to rotate relative to the outer ring;
- a dies disposed in the circular opening of the support block, in which a circular hole is formed through which a smooth pipe enters, a screw protrusion forming a valley on a surface of the smooth pipe is formed on an inner peripheral surface thereof, and at least a portion thereof is inserted into the inner ring and connected to the inner ring;
- and
- a fastening ring disposed to face the dies in the circular opening of the support block and connected to the dies, in which a hollow through which the smooth tube passes is formed,
- wherein the support block has a shielding wall formed to protrude toward the fastening ring on a first lateral side thereof, and the shielding wall is formed to cover a first gap formed between a first sidewall of the outer ring and a first sidewall of the inner ring.
Dependencies are inferred from the claim text.