Document Type and Number:
Japanese Patent JPH0456697
Kind Code:
B2
Abstract:
PURPOSE:To improve the patterning efficiency by inscribing a core bar synchronizing with the rotational direction of a stamping roll and also opposed to it, to a hollow part of a section and rotating it. CONSTITUTION:A core bar handle part 1a is fixed to an erecting fixed column 4, and also to its tip, a core bar 1 for supporting axially a freely rotatable roll-shaped core bar head part 1b is fixed. A section 5 is fitted to the core bar 1, and on the upper side and the lower side of a fitted end 5b, a pair of stamping rolls 2 are provided so as to be vertical and opposed to the section 5. Also, carrying rolls 4 for pressure-welding vertically the section are provided at a suitable interval before and behind the stamp-rolls 2. The stamping roll 2 is provided with a stamping roll on the tip, and can execute an ascent, a descent and a pressure adjustment by a hydraulic pressure, an air pressure, etc. By this mechanism, the section 5 is carried between the stamping rolls 2 and the carrying rolls 3 which are rotated synchronously. According to this method, the efficiency for patterning can be improved and the cost can be reduced.
Inventors:
TAKANISHI KYOSHI
TAKAHATA MASAHIKO
TAKAHATA MASAHIKO
Application Number:
JP19215284A
Publication Date:
September 09, 1992
Filing Date:
September 13, 1984
Export Citation:
Assignee:
SHIN NIKKEI CO LTD
International Classes:
B21D31/00; B21B17/02; B21D22/02; B21H8/00; B44B5/00
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