Patent GB-947685-A (GB)
Title: Improvements in work receiving and discharging units
Inventor: LAKINS FRANKLIN DUDLEY
IPC: B65G47/74
Filed: 1962-09-14
Abstract: 947,685. Grinding. LIPE-ROLLWAY CORPORATION. Sept. 14, 1962, No. 35191/62. Heading B3D. A discharge unit, for receiving and discharging workpieces continuously fed into said unit in substantially abutting relationship by a bar working machine such as a centreless grinder, includes a table positioned to receive workpieces fed out of said bar working machine, said table being carried by a frame, means supporting said table for oscillation from a work receiving to a work discharging position, said means being selectively operable alternatively to permit either clockwise or counterclockwise oscillation of said table from said work receiving position, said oscillation taking place about axes positioned so as to discharge said workpieces without interfering with the infeed of the next abutting workpiece. Plates 46 have ears 42, 44 secured by pins 48 to the flattened ends 39 of bolts 36, 38 affixed, in the desired position of vertical adjustment, by nuts 40 to cross-members 34 on the tops of pedestals 30, 32. The plates 46 carry rails 49, 50 formed with elongated slots 52, 54. A frame comprises end plates 10, 12 and side members 14, 16, the latter having depending ears 18, 20. Rollers 56, 58 are retained by pins 59 passing through the rails 49, 50 and ears 18, 20 so that the frame is free to move horizontally on the pedestals 30, 32. A work receiving table 62 comprises an inverted channel member. Plates 64, 66 fixed between the side members 14, 16 carry doubleacting pneumatic cylinders 68, 70, 72, 74. The rods of cylinders 68, 72 are connected by brackets 76 and pins 78 to arms 80, 82 secured to the table 62 and the rods of cylinders 70, 74 are connected by brackets 84 and pins 86 to arms 88 secured to the table 62. When air is supplied to lower the rods of cylinders 68, 72, the table 62 is tilted about the pins 86 so as to discharge the workpiece carried by the table on to ramps 92 secured to the frame above a conveyer for returning the workpiece to the machine for further machining. When air is supplied to lower the rods of cylinders 70, 74 the table 62 is tilted about the pins 78 so as to discharge the workpiece carried by the table on to ramps 96 secured to the frame above a conveyer for taking away finished workpieces. To permit the tilting of the table, the brackets 76 have elongated slots receiving the pins 78. Upward movement of the table 62 is limited by stop feet 100, 102, 104 (not shown), 106 carried by bolts 108, 110, 112, 114 secured, in the desired position of vertical adjustment, by nuts 123, 124 to arms 116, 118, 120, 122 secured to the upper side of a member 125 extending between and secured to the end plates 10, 12. Angle members adjustably secured to the member 125 depend from the member so as to form therewith a guide channel for the workpiece. The end plate 12 has an aperture 133, the centre line of which is aligned with the centre line of the workpiece in the bar machining machine so that as that machine feeds the workpiece forwardly it will pass through the aperture 133. The table 62 is spaced below the inner diameter of the discharge tube of the bar machining machine so that when the workpiece has completely entered the apparatus it will drop a perceptable distance on to the table 62. The actuator 135 of a sensing switch 136 is positioned in the path of movement of a workpiece entering the apparatus so that when the workpiece has completely entered and dropped on to the table 62, the actuator which has been held open by the workpiece momentarily closes, thus initiating a discharge cycle through the control system of the apparatus. The cylinders 68, 72 are controlled by a valve 142 and cylinders 70, 74 by a valve 140. With a selector switch 144 placed by the operator in the position shown, actuation of the switch 136 by the workpiece falling on to the table 62 energizes solenoid 156 actuating valve 142, whereby the table 62 tilts clockwise; it then actuates limit switch 148 energizing return solenoid 162 actuating valve 142 whereby the table 62 returns to its horizontal position. With the switch 144 in the other position, switch 136 causes counterclockwise tilting of the table 62 and limit switch 146 returns the table 62 to its horizontal position.