GB584855A - Improvements in cap assembling apparatus - Google Patents

Abstract

584,855. Cap assembling apparatus. CROWN CORK & SEAL CO., Inc. April 17, 1944, No. 7110. Convention date, March 23, 1943. [Class 125 (iii)] An apparatus for providing a container closure cap shell with a cushion disk, to constitute for example a crown cap which includes a skirted metal shell and a disk of cork or cork composition, and for applying to the disk a facing or "spot" to protect the container contents from contact with the disk, is provided with means whereby the output of shell and disk assemblies from one part of the apparatus can be passed directly to the spotting apparatus or can be used to bye-pass it. Crown shells are contained in a hopper 53, Fig. 2, and cushion disks in a hopper 69. Shells pass to a feed disk 55 and thence to a step-by-step conveyer as in U.S.A. Specification 1,469,557 in which the shells rest on tracks and are moved by orbitally-moving racks. Adhesive is applied by spreaders 66, 67 and cushion disks fed from hopper 69 through a vibrated tube 70 are thrust into the shells by a plunger operated by an eccentric 74. The assemblies pass to a dial 83, Fig. 9, rotated synchronously with a vertical dial 88 to which it passes the assemblies; these are heated and held in recesses by spring plungers which keep the disks under pressure, the period of rotation of dial 88 allowing time for the adhesive to dry. From dial 88 the assemblies pass down a chute on to a disk 108 from which they are swept by mechanism 139 to a delivery conveyer 130. When, however, it is desired to apply a spot, a wall on the periphery of disk .108 is replaced by a tunnel 149 through which the assemblies pass to a disk 143 and thence to a rack conveyer 147, Fig. 9. While on this conveyer a punch on a vertical slide 157 punches a spot from a strip of adhesive spot material and deposits it on a disc which is previously heated. The assembly is then received in a pocket in a pressure dial 160 and is pressed by a reciprocable plunger 163. The assembly is then delivered by a belt to disk 108 and swept on to delivery belt 130. A device for removing assemblies through an opening in the tunnel in case of jamming by directing an air blast on them is described. A magnet may be positioned under disk 108 to prevent the shells from fluttering. The machine may be used to continuously assemble shells, disks and spots; to assemble shells and disks only; or to apply spots to shell and disk assemblies supplied independently. The machine may be in two twin parts delivering to a common delivery belt.