Presses – Automatic or material triggered control – Of material addition – deposition – or discharging
Patent
1982-05-20
1984-10-02
Wilhite, Billy J.
Presses
Automatic or material triggered control
Of material addition, deposition, or discharging
100215, 100218, 100902, B30B 932
Patent
active
044741081
ABSTRACT:
An automatic can crushing machine, preferably used for compressing standard aluminum 12 ounce beverage cans, is constructed of a housing having an angularly inclined feed chute for receiving a supply stack of cans to be crushed therein and an adjacent, parallel-arranged crushing station in which a piston reciprocates back and forth to crush the cans one at a time delivered from the feed chute. The feed chute is adapted to contain a serial stack of spent cans which are disposed, under the influence of gravity, to pass downward in the chute toward an ejection end. An ejector mechanism in the form of a plunger passes transversely through the ejection end of the chute to force a can about to be crushed through a delivery opening covered by a flap valve for deposit into a trough mounted in the crushing station. A crushing piston reciprocates within the trough. Movement of the crushing piston along the trough longitudinally compresses the can to approximately one-eighth of its original length over an outlet gap. When the piston begins it retraction stroke in the trough, the crushed can product is released and falls freely through the outlet gap into a suitable disposal receptacle. A leaf spring is positioned along the feed chute above the ejection end so that subsequent cans in the stack are disposed out of line with the can being ejected and, thus, tilting or nesting of the can being ejected is prevented.
REFERENCES:
patent: 2619150 (1952-11-01), Smith
patent: 2813569 (1957-11-01), Nelson
patent: 3412675 (1968-11-01), Killough et al.
patent: 3817169 (1974-06-01), Bischoff
patent: 3907087 (1975-09-01), Tanaka
patent: 3916780 (1975-11-01), Heiser
Peterson Christine A.
Wilhite Billy J.
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