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Patent Searching and Data


Title:
BAR CLAMPING DEVICE
Document Type and Number:
Japanese Patent JP2000288746
Kind Code:
A
Abstract:

To provide a bar clamping device capable of successively friction- joining bars to be successively hot nailed in the on-line condition.

A bar clamping device to friction-join a preceding bar M1 with a succeeding bar M2 which are successively conveyed in series one by one on a specified conveyance passage from a heating furnace to a rolling mill comprises a first clamping device 1 and a second clamping device 2. The first clamping device clamps the preceding bar and is moved together with the preceding bar, the second clamping device has an open annular portion (a C-ring), and is reciprocated between the working position YL and the waiting position YO with the succeeding bar passed through the open portion, and traces the first clamping device while clamping the succeeding bar at the working position and rotating the succeeding bar around the longitudinal axis, and presses a forward end portion of the succeeding bar against a rear end portion of the succeeding bar.


Inventors:
HATANAKA ATSUSHI
Application Number:
JP1999000099620
Publication Date:
October 17, 2000
Filing Date:
April 07, 1999
Export Citation:
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Assignee:
KAWASAKI STEEL CO
International Classes:
B21B1/16; B21B15/00; B23K20/12; (IPC1-7): B23K20/12; B21B1/16; B21B15/00
Attorney, Agent or Firm:
小林 英一