Patent GB-297730-A (GB)
Title: Improvements in machines for applying a lining compound to can ends
IPC: B05C13/02
Filed: 1928-08-21
Abstract: 297,730. Peters, J. F. Sept. 26, 1927, [Convention date]. Coating-machines.-In a machine for applying a lining compound to the peripheral flanges of can-ends, the can-ends are fed to a device which transfers them to a movable carrier for conveyance beneath a die to which the lining compound has been applied, whereupon they are raised from the carrier into contact with the die to receive the lining and are subsequently lowered to effect their removal from the carrier and transferred to ejecting and delivery devices. The can-ends 50, Fig. 3, are stacked in a magazine 51 comprising supporting-rods 52 mounted above a table 23. Adjacent to the bottom of the magazine 51 is mounted a rotating disc 48 provided with a peripheral spiral groove 49 which engages the edge of the lowermost end and lowers it, whereupon it is engaged by an upwardly projecting finger 55, Fig. 1, on one of a series of pockets 54 carried by a rotating turret 53 mounted upon a vertical shaft 32. From the turret 53 the can-ends are delivered successively to a rotating carrier comprising a vertical sleeve 60 surrounding a vertical bearing-post 61 on a transverse web 22 of the machine frame. Projecting from the sleeve 60 is a spider frame 63 carrying at the end of each limb a tubular bearing 64 in which a slidablecan-end support 65 is guided by a key 66. The members 65 are raised and lowered through apertures 71 in a table 70 which is secured around the sleeve 60 and rotates with it, the vertical movement of the members 65 being effected by a circular cam 74 fixed upon the web 22 and engaging rollers 72 at their bottom ends. Above each can-end support 65 a web 77 on the sleeve 60 supports a lining-die 75 which is adjustable vertically within a bearing 76 and otherwise has no vertical movement. A presser member 94 mounted on a shaft 95 extending through the centre of the die 75 is movable vertically by a roller 97 on a block 96 at the top of the shaft engaging within a groove 98 on a stationary can 99 secured at the top of the fixed support 61. The lining compound is applied to the lower annular surfaces of the dies when the presser members 94 are in their inner position, the dies being carried over a roller 82, Fig. 1, rotating in a tank 81 containing the compound. The can-end received from the turret 53 is carried round on a support 65 until the latter is raised by the cam 74, whereupon the presser member 94 above the can-end is lowered beneath its die and presses the can-end upon a plate 67 mounted on the upper end of its support 65. The can-end is pressed firmly upon the plate 67 against the yielding pressure of spring 69, Fig. 7, disposed on the underside of the plate. Preferably the peripheral edge of the plate 67 is provided with a necess 101 to enable the central portion of its surface to engage the corresponding part of the can-end. The continued rotation of the carrier turret above the cam causes the can-end to be brought into engagement with its die 75 to receive the lining compound, after which its support 65 is lowered. and the can-end is stripped from the die by a downward movement of the rod 95, and presser member 94. Further rotary movement of the carrier causes the can-end support to be lowered within its hole 71 in the plate 70, the hole being made smaller than the can-end in diameter so that the latter is stripped from its support and rests upon the plate 70. The released can-end is received within a pocket 104 in a rotating discharge turret 101 and is engaged by an adjacent arm 105 which carries it across the table 23 against a circular guide-rail 106 into the discharging position, where it falls through an opening 107 on to a conveyor chain 108 and thence to a drier or other mechanism. The machine is driven by a motor 29 coupled to a rotating shaft 32 which is geared to the rotary members of the machine.