Cutting – With product handling means – Means to move – guide – or permit free fall or flight of product
Patent
1986-02-20
1989-04-25
Schran, Donald R.
Cutting
With product handling means
Means to move, guide, or permit free fall or flight of product
83 15, 83371, 83572, 83658, 83171, B26D 710
Patent
active
048236608
ABSTRACT:
A device and method for cutting labels from a strip of heat meltable material comprises a frame, a die plate mounted for resilient movement on the frame and a punch mounted for movement toward and away from the die plate. The punch carries a cutting edge which cooperates with a die surface of the die plate to cut a label. A reciprocating device includes a spring loaded plunger which moves the die plate with its cutting edge into contact with the die surface of the die plate. The die plate is spring mounted to the frame so that excess movement of the punch toward the die plate is absorbed by the springs of the die plate. Any additional excess movement is absorbed by the spring loaded plunger. The die plate may also be provided with a hole conforming substantially to the outer contour of the label. The edge follows the contour of the hole but it is dimensioned slightly larger than the hole so that a margin of die surface remains around the hole against which the cutting edge operates. A slight radius is cut at the edge of the hole in the die plate. In this way when labels which were cut out by the cutting edge are pushed through the hole in the die plate, they do not leave residues of heat meltable material at the edge of the hole. The cutting edge of the punch is heated to facilitate cutting of the heat meltable material and to render the edges to be fray proof and heat sealed to prevent fraying of edges in wearing and washing with three types of seals, soft, medium and heavy. When the device is deactivated, a retracting mechanism lifts the punch with its heater away from the die plate. This avoids overheating the heatable material which may still be in the vicinity of the die plate.
REFERENCES:
patent: 3623209 (1971-11-01), Zuhlke et al.
patent: 3732770 (1973-05-01), Ottavan
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