Patent GB-652712-A (GB)
Title: Improvements in automatic feeders for feeding material or articles through a machine
Inventor: SYKES THOMAS ROBERT
IPC: B65G23/00
Filed: 1948-06-04
Abstract: 652,712. Bundling machines. TORONTO STAR, Ltd June 4, 1948, No. 15171. [Class 94(i)] [Also in Group XXX] An automatic feeder for feeding material or articles through a machine, comprises in combination with the machine an endless roller slot conveyer extending to adjacent the machine, means to impart positive rotation to the rollers of the conveyer arriving adjacent the machine to accelerate material being fed along the conveyer into the machine, said means being operable to free said rollers from positive rotation, control means actuated by the entry of material into the machine to effect operation of said roller rotating means to free the rollers arriving adjacent the machine from positive rotation, and means for moving the material out of the machine upon completion of the machine function, the roller rotating means being operated upon completion of the machine cycle to recommence positive rotation of the conveyer rollers. The articles are fed along a roller conveyer, the rollers 45 of which being interconnected by links 44. The discharge end has a brake shoe 70 mounted on shafts 68 and 69 and connected by a linkage to a saw 82 by means of which the brake shoe is raised by cams 73 into contact with the rollers and causes their rotation. A driven roller 64 is mounted slightly above and at the end of the conveyer to prevent the wrapper following the article. The baling machine comprises uprights with cross-bar and bed plate and between the uprights a ram can be operated . to exert a pressure on the article on the bed plate. A slide 6 with a groove 7 for the tying wire on the bed plate has two vertically slidable folder arms opertaed by rams. The slide is moved laterally by a ram to push the article against an upright and at each end of the bed plate is a roller table which can be lifted about shafts 95 and 105 by the operation of a piston acting on a shaft 122. The article on passing to the bed plate operates a switch 127 which commences the tying cycle. The piston operating the roller tables lowers them below the bed plate. The article is stopped by a bundle stop 132 which projects temporarily above the bed plate and stops the article in the correct position for first tie when set for double tie. Beneath the cross-bar 112 is a micro-switch 133 having a spring-urged plunger 136. The switch is used for single tie and is associated with a stop cylinder 139 with a piston 142 which temporarily projects into the feeding path for a single tie. A micro-switch 144 and stop 145 are provided for the second part of the double tie, they are operated in parallel with switch 127 and stop 133 and article stop cylinders 131, 139, 146, controlled by solenoid valves, and a clutch operating cylinder and another cylinder are connected in parallel with the slide operating ram by air links connected to a main air valve. The bed plate rain is also connected in parallel with the slide operating ram. The main valve normally operates a piston 82 to drive rollers by means of belts 100, 111 and to raise the brake shoe simultaneously, the piston moves upwardly and article stops rise. The article depresses plunger to operate main valve to start machine cycle, on completion the valve is released, and the cylinder lifts the article clear of the bed plate and on to the table roller. The conveyers are all driven from sprockets on a shaft 52 of the motor 50. Specifications 547,364 and 615,491 are referred to.