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Patent Searching and Data


Title:
NEEDLE GRINDING DEVICE
Document Type and Number:
Japanese Patent JPS6261748
Kind Code:
A
Abstract:

PURPOSE: To prevent formation of a stepped section and occurrence of baneful thermal influences at the pointed end section of a needle, by inclining the feeding direction of needles held between a feeding table and turning table by a prescribed angle to the axis of a drum-like grindstone when numerous needles are simultaneously ground while they are contacted with the grindstone.

CONSTITUTION: A feeding wheel 4 and turning table 5 which hold numerous needles 3 at once are provided on an inclined base 9 which is rotatable around the center of a drum-like grindstone 1. When the needles 3 are contacted with the grindstone 1 and ground, the needles 3 are rotated and fed under a condition where the axis 6 of the feeding wheel 4 is inclined by 5°W30° to the axis A normal to the axis 2 of the grindstone 1. Therefore, formation of a stepped section and occurrence of baneful thermal influences at the pointed end sections of the needles can be prevented.


Inventors:
MATSUTANI KANJI
Application Number:
JP20054485A
Publication Date:
March 18, 1987
Filing Date:
September 12, 1985
Export Citation:
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Assignee:
MATSUTANI SEISAKUSHO
International Classes:
B21G1/12; B21G3/12; B24B19/16; (IPC1-7): B21G1/12; B24B19/16
Domestic Patent References:
JPS5216813U1977-02-05
JPS2915182Y1
Attorney, Agent or Firm:
Shukichi Nakagawa