Patent GB-1267522-A (GB)
Title: Improvements in and relating to coin wrapping machines
IPC: B65B11/36
Filed: 1969-04-10
Abstract: 1,267,522. Packaging coins. BROACH SYSTEMS Inc. 10 April, 1969 [12 Sept., 1968], No. 18378/69. Heading B8C. A coin wrapping machine comprises means for assembling a plurality of coins on edge adjacent one another to form a roll of loose coins, means for moving the roll of loose coins from the coin assembling means to coin wrapping means adapted to wrap a sheet of film material around the coin roll. As shown in Figs. 2 and 4, loose coins are fed into an open-topped hopper 10 in which they pass by gravity and by means of a vibrator 17, to a bucket chain conveyer 20 which deposits the coins on to an upper plate 31 of a section 30 having apertures which permit some of the coins to pass to a lower plate 32. The coins then move in rows 43, 44 on a coin-turning section 40 comprising ribbed upper and lower plates 41, 42 which terminate in a turning section 45, Figs. 7, 8, 9, where the coins are delivered on edge to tracks 46, 47 which converge to a gathering station 48 covered by a transparent plate 49. The sections 30 and 40 of the machine are adjustable in height by means of piston-and-cylinder devices 426, 430 and 437. A spring-loaded cover 57 holds the coins in position to be raised by a mechanism 50 comprising a movable plate 501, Figs. 18, 20, having a surface 52 and a pair of gripping members 54, 55 by which a roll 56 of coins is moved into a cavity 63 of a wrapping head 60. A movable bar 57 prevents more than one roll 56 from being lifted for each upward movement of the plate 501. The plate 501 is moved to raised and lowered positions by means of a cam 530, Fig. 12, which is driven by a motor 514, the cam having a track 531 which is engaged by a roller 532 on a lever 507 connected through a link 506, a crank 505 and an arm 502 with the plate 501, such that for one revolution of cam 530 the plate 501 moves one roll of coins into the head 60 and returns to its original position to receive the next roll. The cavity 63 is covered during loading by a canvas belt 61 which extends around the head and over which is fed a cut layer of wrapping film 62 fed from a film feeding mechanism 80 and the head 60 is thereafter rotated to wrap the film 62 around the roll, the belt remaining stationary and locking bars 64 confining the roll during rotation of the head. When the head reaches the position of cavity 63a the wrapped roll is expelled by the tension of the belt 61 on to a conveyer 67. During rotation of the head 60, a pair of fingers 65 on the head, grips the ends of the wrapping film while it is being rolled around the roll, to thereby twist the ends. The wrapping head 60, Figs. 15, 16, comprises a pair of spaced plates 601, 602 on a shaft 630 and in which the cavities 63 are provided and on which the bars 64 are pivoted by pins 604 each of which carries an arm 605 having thereon a roller 606 riding in a cam-track 507 in a cam-plate 608. The cam-plate 608 is connected through a linkage 611, 612, 617 with a cam-plate 619 on a drive-shaft 536 which also drives the head 60 through a Geneva mechanism and reduction gearing 617, 618. The conveyer feeds the roll on to a chain conveyer 71, Fig. 30, of a sealing section 70 and passes between a pair of hot-plates 75 which compress and seal the twisted ends of the film. Thereafter the roll falls on to a shoot 76 and into a discharge passage 77. The mechanism 80 comprises a supply roll 81 of plastics film which is guided by rollers to a location between a fixed knife 82, Fig. 12, and a rotating knife 83. The mechanism 80 also includes spaced vertical pleater bars 851 between which the film passes in scallop form to the knives 82 and 83. Specifications 1,267,523, 1,267,524, 1,267,525 and 1,267,526 are referred to.