Patent GB-191319685-A (GB)
Title: Improvements in or relating to Machines for Cutting-up Plastic Material and for Feeding same to a Wrapping Machine or the like.
Inventor: WADE HAROLD
IPC: B65B35/20
Filed: 1913-08-30
Granted: 1914-04-02
Abstract: 19,685. Wade, H., [Merrell, F. H., and Blackburn, W. K.]. Aug. 30. Packeting by wrapping-up.-Relates to an automatic machine for cutting slabs of plastic material such as soap, butter, confectionery, &c. of predetermined dimensions into a row of bricks or cubes, and for separating these cubes individually and delivering them to a receiver constituting part of a wrapping machine. The slab of material is forced through a series of fixed cutters 10 into a receiving tray. An intermittently operated pusher 14 acting upon the end of the cut slab then transfers the cut cubes individually to a separator A which separates a cube positively from the remainder and transfers it to a receiver 71 forming part of the wrapping machine. The pusher 14 is mounted on a carriage 14<1> guided on a rail 15 and is moved forward intermittently by a reciprocating rack bar 27 engaging with a spring detent 28. A second pusher 14 is mounted upon a carriage 14<11> guided on a second rail 15 and disposed as shown, the two carriages 14<1>, 14" being connected by an endless band 20. The rails 15 are secured to yokes 16, 16<1> pivotally mounted in bearings 18 and are adapted to be swung through half a revolution when the cubes have all been fed to the separator A, thereby bring- ing the first pusher out of engagement and the second pusher into position behind the table, ready to engage a fresh set of cubes. The ends of the band are adjustably connected to the carriage 14<11> and the carriage 14<1> is secured to the band by a pin passing through a hole in either of the projections and a hole in the band. As shown in Fig. 11, the separator A comprises a base 62 and skeleton sides 63 carried by links 64 and levers 66 pivoted to brackets 65. On moving the levers 66 about their pivots 67 by a rod 68, the separator is turned over until it occupies the position indicated in dotted lines, first causing the separation of the cube within it from the remainder; a plunger 73 presses upon and retains the adjacent cube during the separation. While the separator is turned over, the receiver is advanced through the skeleton frame pushing out the separated cube and transferring it to the wrapping machine where it is held by a gripping-device, in alinement with a wrapping well a, Fig. 12, through which it is subsequently forced together with a wrapper e by a plunger d. Motion is imparted to the various parts of the machine from a main shaft 31. Rigidly secured to the shaft are a cam 30 which operates the rack bar 27 through a lever 30' and rod 32<1>; a cam 70 adapted to operate the separator levers 66 through a sleeve 69 and rod 68; and a cam adapted to operate the plunger 73 through a spring lever 76, rod 75, and lever 74. The yokes 16, 16<1> are turned by a pawl 35, Fig. 5, carried by a segmental gear 34 loosely mounted upon one of the yoke spindles 17, engaging with notches 36, 36', in a disk 37 secured to the spindle, the gear 34 being rotated by a toothed segment 34<1> formed on a lever 42<1> which is oscillated by a reciprocating member 44 connected bv a link to the lever 60, Fig. 1; the disk 37 is normally locked by a detent lever 40 influenced by a spring 48 inserted between a tail lever 40<1> and a bellcrank lever 45 connected to the lever 40 by an adjustable rod 47, and is released by a projection 50 on the member 44 engaging a trip 49 secured to the pin 46 of the lever 45.