Apparatus and method for trimming a can body

Details Apparatus and method for trimming a can body Apparatus and method for trimming a can body

1989-11-13

1991-10-08

Smith, James G.

Turning

Severing or cut-off

Processes

82 48, 82 53, 82 56, 82 58, B23B 100

Patent

active

050543415

ABSTRACT:
Apparatus and method for trimming away a portion of the open end of an untrimmed can body to form a trimmed can body and a trimmed away portion using a plurality of can trimming apparatuses which are mounted on a turret which is secured to a main drive shaft for rotation therewith. Each of the can trimming apparatus has mechanisms for cutting the untrimmed can body to form a trimmed can body and a trimmed away portion; for separating the trimmed can body from the trimmed away portion by moving both in one axial direction and then only the trimmed can body in the opposite axial direction; for loading untrimmed can bodies onto each can processing apparatus and for unloading trimmed can bodies therefrom and for cutting, knurling and disposing of the trimmed away portions. A collapsibe mandrel is provided and comprises a hollow support member having a plurality of axially and radially outwardly extending resilient fingers integral therewith and a bearing surface mounted on an adjustable elongated hollow member in contact with the resilient fingers to control the radially outward extent thereof. Also, an annular spacer is located between a first knife and a first knurling roller to provide a space for the portion to be trimmed away prior to the knurling operation. A positive can body loading and unloading system is also provided.

REFERENCES:
patent: 1421263 (1922-06-01), Lea
patent: 3425251 (1969-02-01), Maytag
patent: 4014228 (1977-03-01), Dean
patent: 4181050 (1980-01-01), Stroobants et al.

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