Title:
METHOD AND DEVICE FOR FORMING FLANGE TO VESSEL PROPER THROUGH REVOLUTION
Document Type and Number:
Japanese Patent JPS589724
Kind Code:
A
Abstract:
A continuous rotary machine for roll flanging the ends of cylindrical container bodies transports the container bodies in a star wheel while applying a roll flanging tool head to the end portion of the container body in two stages. In the first stage, the tool head forms a small flange that acts as a stress ring to maintain the cylindrical body in circular configuration at the open end, and the stress ring is ironed. In the second stage, the tool head advances by a greater distance to form a larger portion of the flange, and this flange is ironed. Both ends of a cylindrical container body may be simultaneously flanged by this method, in which case the opposite flanging heads rotate in opposite directions at substantially the same speed. The rotary apparatus provides a spindle/ram assembly on a turret for supporting and moving the flanging heads. A cam operates the axially movable ram portion and is located radially outside the ram for greater accuracy in the cam profile. The turret is accurately maintained on a main shaft of the machine by a two rib supporting structure to assure radial alignment and by a locking key with expandable body in a keyway to assure axial alignment.
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Inventors:
RASUZURO EI GOMUBASU
Application Number:
JP11476882A
Publication Date:
January 20, 1983
Filing Date:
July 01, 1982
Export Citation:
Assignee:
RASUZURO EI GOMUBASU
International Classes:
B21D19/04; B21D51/26; (IPC1-7): B21D19/04
Domestic Patent References:
| JPS5127430A | 1976-03-08 |
Attorney, Agent or Firm:
Kyozo Yuasa
Next Patent: ELECTRIC INSULATING COMPOSITION AND POWER CABLE