| 摘要 |
987,202. Coiling. MORGAN CONSTRUCTION CO. Nov. 8, 1963 [Nov. 13, 1962], No. 44147/63. Heading B3E A machine for forming a number of coils successively in a single location from a succession of non-concentric rings comprises means for continuously feeding the rings substantially horizontally to a position above a collecting table and allowing the rings to drop in the form of a helix to form a coil on the table, means to intercept the fall of the rings to the collecting table while the first coil is removed therefrom and being arranged temporarily to support the oncoming rings whereby when it is removed the accumulated rings fall to the collecting table for the formation of a second coil thereon. Overlapping rod rings 8 are moved along stationary support tracks 10 whilst resting on conveying chain 9 by a driven central toothed chain conveyer 4 to an accelerating tractor 54 comprising a lower endless driven chain unit 60 mounted on a beam 20 and an upper endless chain assembly 58 which is suspended from one end of a pair of levers 36, 38 pivotally mounted on a transverse shaft 24. The opposite ends of the levers are coupled to tension members 44, 46 which are spring biased to counteract some of the weight of the tractor 54 so as to maintain the upper chain in contact with the lower chain to ensure a positive grip on the rings. The linear speed of the chains 58, 60 is greater than that of the conveyer 4. The rings are discharged from the tractor 54 and gravitate down a substantially tubular member 82 over a reciprocable tongue-shaped interior guide means 94 on to a table 80. When the required size of coil has been completed a horizontally disposed flanged intermediate supporting plate 124, actuated by a two-way air cylinder 125, is advanced along guides through the wall of the member 82 to intercept any further rings and prevent them falling on to the coil. Subsequently the tongue 94 is lowered between roller guides 100 by pneumatic means 96 and a motor 106 energized to operate a single revolution crank which advances a pair of vertical plates 118, 119 attached to arms 116 via a lever 114 to push the completed coil on to a conveyer 92. The plates 18, 19 move through slots in the member 82 whilst the coil is pushed therefrom through an opening 90. Finally the tongue is raised and the plate 124 retracted, the piled up rings thereon falling over the tongue to commence a further coil. The leading end of the plate 124 is so shaped at 129, 130 that it will enter between two successive falling continuous helical rings so that a short section of the rod is trapped in the notch 131 thereof and is advanced thereby into the mouth of a shear unit 132, which may run continuously or be started by the rod entering the unit, to sever the ring. A known type of automatic weighing device 127 may be used when coils of a specific weight are required. The machine may be sequence controlled by a series of switches, solenoid operated valves and a time delay unit, Fig. 6 (not shown). |
