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US4413983: Apparatus for assembling ring-type closures

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Filing Information

Inventor(s) Jerry W. Young · William R. Eddy · Raymond C. Taylor ·
Assignee(s) Sealright Co., Inc. ·
Attorney/Agent(s) Kokjer, Kircher, Bradley, Wharton, Bowman & Johnson ·
Primary Examiner James F. Coan ·
Application Number US6311353
Filing date 04/01/1981
Issue date 11/08/1983
Predicted expiration date 11/08/2000
U.S. Classifications 493/30  · 493/38  ·
International Classifications B31B 1702  ·
Kind CodeA
International Classifications 493109;108;102-107;158;159;156;149;150;334;30;38 ·
Related U.S. Application DataThis is a continuation of application Ser. No. 055,234, filed July 6, 1979, and now abandoned.
46 Claims, No Drawings


Abstract

An improved multi-station machine is disclosed for assembling ring-type closures from generally cylindrical paperboard cylinders and generally circular paperboard discs. The machine employs a rotatable dial plate, carrying eight mandrels and an improved ring clamping system, which dial plate is incrementally rotated by an automatic indexer assembly relative to the various operating stations which consist of a ring feed station, a disc feed station, an adhesive dispensing station, a curling station, a grooving station and a closure ejecting station. Means are provided for controlling the operation of the various stations so that they operate in substantial synchronism with one another and with the rotatable dial plate. The improved disc feed station automatically feeds the lowermost disc from a stack of discs to a position over a ring on the dial plate and simultaneously forms a peripheral skirt on the disc and positions it in an open end of the ring. The adhesive dispensing station employs a pair of tube pumps to dispense adhesive and lubricant on partially assembled ring-type closures. The grooving station automatically forms a peripheral groove and a corresponding radially inwardly extending rib in the cylindrical wall of an assembled ring-type closure. The closure ejecting station provides vacuum means for withdrawing a completed closure from a mandrel on the dial plate and pressurized air means for assisting in the automatic removal of the closure from the mandrel and for automatically propelling the thus removed mandrel from the machine. The ring feed station provides means for preventing the introduction of rings onto the dial plate in response to an indication of insufficient discs at the disc feed station. Control means are provided for manually indexing the dial plate as well as prevention of disc feed, and adhesive and lubricant dispensing if an appropriate ring is not present on the dial plate, as well as control means for preventing ring feed if sufficient discs are not available at the disc feed station. Various other control features are disclosed for the prevention of operator injury, material waste and machine jamming.

Independent Claims | See all claims (46)

  1. 1. Apparatus for assembling closures, each including a generally cylindrical ring, having a generally cylindrical outer surface and generally circular open ends, and a generally circular disc, said apparatus comprising:a plate having an upper surface and a lower surface and a plurality of ring receiving means on said upper surface each adapted for receiving one of said generally cylindrical rings thereon;plate drive means operatively related to said plate for rotating said plate about an axis of rotation;ring feed means positioned adjacent said plate for positioning one of said rings on a first one of said ring receiving means;disc feed means positioned adjacent said plate for positioning one of said generally circular discs within one of said open ends of one of said generally cylindrical rings on a second one of said ring receiving means;adhesive dispensing means positioned adjacent said plate for dispensing a quantity of adhesive at at least one location within one of said open ends of one of said rings on a third one of said ring receiving means;lubricant dispensing means positioned adjacent said plate for dispensing a quantity of lubricant on at least one of said rings;curling means positioned adjacent said plate for mutually curling one of said open circular ends of one of said rings and a respective one of said discs positioned therewithin into mutual engagement on a fourth one of said ring receiving means so as to thereby close one circular end of said ring and form a ring-type closure;grooving means positioned adjacent said plate for forming a generally circumferential groove in the generally cylindrical outer surface of a generally cylindrical ring of a ring-type closure on a fifth one of said ring receiving means; andejecting means positioned adjacent said plate for ejecting a ring-type closure from a sixth one of said ring receiving means.
  2. 39. Apparatus for assembling closures, each closure including a generally cylindrical ring, having a generally cylindrical outer surface and generally circular open ends, and a generally circular disc, said apparatus comprising:a rotatable member having a plurality of ring receiving means thereon, each ring receiving means being adapted for receiving one of said generally cylindrical rings thereon;drive means operatively related to said rotatable member for rotating said member about an axis of rotation to move each ring receiving means between successive stations;ring feed means for positioning one of said rings on each of said ring receiving means when same is at a first station;disc feed means for receiving a stack of the discs and positioning said circular discs one at a time within one of said open ends of each of said generally cylindrical rings when the ring receiving means carrying the ring is at a second station;curling means for mutually curling one of said open circular ends of each of said rings and a respective one of said discs positioned therewithin into mutual engagement when the ring receiving means carrying the ring and disc is at a third station, thereby closing one circular end of said ring to form a ring-type closure; andgrooving means for forming a generally circumferential groove in the generally cylindrical outer surface of each ring-type closure when the ring receiving means carrying the closure reaches a fourth station.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US2089126 CONTINENTAL CAN CO Kronquest Aug 1937
US2275571 GARDNER RICHARDSON COMPANY Sooy et al. Mar 1942
US2442527 JOHN G O NEIL Zesbaugh Jun 1948
US2471307 CROWN CORK SPECIALTY CORP Carvalho May 1949
US2642784 NAT PAPER BOTTLE CO INC Wittkuhns et al. Jun 1953
US2802407 Majer Aug 1957
US2916861 HARRY LEHMANN Lehmann Dec 1959
US3583624 PHILLIPS PETROLEUM CO Peacock Jun 1971

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