Metal working – Venetian blind assembling
Patent
1992-05-04
1993-09-14
Eley, Timothy V.
Metal working
Venetian blind assembling
B23P 1904
Patent
active
052437442
ABSTRACT:
In a machine for producing venetian blinds, a strip of slat material is intermittently fed by a feeding device to a mounting station where slats (20, 20') are mounted in a number of ladder tapes (17) at threading stations (12). Punching devices (30) for punching the strip of slat material comprise, respectively a punching tool (30) which is movable laterally relative to longitudinal direction of the strip of slat material between an operative position in which the die (32) and punch (33) of the punching tool are in the correct position for punching the strip of slat material, and an inoperative position in which the die and punch of the punching tool are positioned laterally outside the strip of slat material. The punching devices can have at least one cutoff or separating punching tool for cutting or separating individual slats (20) from the strip of slat material. A moving or driving mechanism (40-42) moves each punching tool between the operative position and the inoperative position.
REFERENCES:
patent: 3824657 (1974-07-01), Nilsson
patent: 4665599 (1987-05-01), Nilsson
patent: 5060353 (1991-10-01), Nilsson
patent: 5127138 (1992-07-01), Lim
AB Sani-Maskiner
Eley Timothy V.
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