MECHANISM FOR SEPARATING A CONTAINER CLOSURE FROM A STACK OF CLOSURES
First Claim
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1. A container closure lining machine including a feed stack member for storing unlined closure elements;
- a rotary chuck member upon which unlined closure elements are deposited for receiving lining compositions;
a hopper member beneath said stack of closure elements supporting a pair of spaced, reciprocating feed slide bar members for engaging opposite sides of said closures and delivering said closures in a reciprocating motion from said stack member to said chuck;
arms pivoted on said hopper member and overlying each of the said feed slide bar members;
cam tracks formed in each of the said feed bars;
a pair of cutoff knives, each attached near one end of each of said arms and directed inwardly; and
, a cam roller attached to each of the other ends of said arms and working in each of said cam tracks;
said cam tracks in said feed bars being curved in a direction which is at an angle to the reciprocating direction of said bars causing said knives to move transversely to the reciprocating motion of the bars whereby closures will be cut from the said feed stack by said knives and the velocity of contact of the said cutoff knives with said closures is thereby reduced.
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Abstract
A closure feed mechanism for reciprocating slide-type container closure lining machines. It is provided with cut-off knives which separate the lowermost closure from the closure in the feed stack by causing the knives to advance transverse to the motion of the slide rather than advance longitudinally at the speed of the slide. As a result, knives approach the closures with one-half of their prior velocities, and denting or bending the closures is substantially eliminated.
24 Citations
2 Claims
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1. A container closure lining machine including a feed stack member for storing unlined closure elements;
- a rotary chuck member upon which unlined closure elements are deposited for receiving lining compositions;
a hopper member beneath said stack of closure elements supporting a pair of spaced, reciprocating feed slide bar members for engaging opposite sides of said closures and delivering said closures in a reciprocating motion from said stack member to said chuck;
arms pivoted on said hopper member and overlying each of the said feed slide bar members;
cam tracks formed in each of the said feed bars;
a pair of cutoff knives, each attached near one end of each of said arms and directed inwardly; and
, a cam roller attached to each of the other ends of said arms and working in each of said cam tracks;
said cam tracks in said feed bars being curved in a direction which is at an angle to the reciprocating direction of said bars causing said knives to move transversely to the reciprocating motion of the bars whereby closures will be cut from the said feed stack by said knives and the velocity of contact of the said cutoff knives with said closures is thereby reduced.
- a rotary chuck member upon which unlined closure elements are deposited for receiving lining compositions;
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2. The lining machine of claim 1 wherein the vertical position of said knives is adjusted by shims interposed between the arms and the said knives.
Specification
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Current AssigneeW R Grace & Company - CONN (WR Grace & Company)
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Original AssigneeEdwin E. Keene, William B. Harrison
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InventorsHarrison, William B., Keene, Edwin E.
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Primary Examiner(s)Coleman, Samuel F.
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Application NumberUS05/229,212Time in Patent Office657 DaysField of Search221/238,251,297 133/4,5US Class Current221/251CPC Class CodesB65G 59/062 by means of reciprocating o...
