1976-06-21
1978-07-18
Coan, James F.
93 583, B31B 120
Patent
active
041008448
ABSTRACT:
Precision male and female dies with the respective tool for manufacturing folding box blanks, are produced by photographic reproduction processes. The contour and the fold lines of a particular box blank are first drawn as an original on a light transparent film. This original forms a standard blank or standard film which is then used to produce an image of the punching knife location and of the positions of the embossing line projections on the male die. The same original is also used to produce an image of the respective groove configurations in the female die. The punching knives are then inserted into a support plate in accordance with these images. Similarly the grooves and embossing lines are produced in accordance with the respective images.
REFERENCES:
patent: 2586744 (1952-02-01), Troth
patent: 3170342 (1965-02-01), Downie
patent: 3289516 (1966-12-01), Bohrer et al.
patent: 3292513 (1966-12-01), Palmer
Coan James F.
Fasse W. G.
R & S Stanzformen GmbH
Roberts W. W.
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