Patent GB-1067075-A (GB)
Title: Improvements in or relating to an apparatus for cutting-off lengths of rod or the like
Inventor: NARGAND JOHN WALTER
IPC: B23D25/00
Filed: 1965-07-14
Abstract: 1,067,075. Shearing. KAISER ALUMINUM & CHEMICAL CORPORATION. July 14, 1965, No. 29869/65. Heading B3W. An apparatus for dividing a continuously moving rod comprises a pair of rotating disc cutters (72), Fig. 2 (not shown), and a reciprocable guide 104 through which the rod passes and which moves the rod transversely of the cutting plane of the cutters to divide the rod and to direct the newly formed leading end of the rod into one of a plurality of delivery channels. The cutters (72) are mounted on a pair of intergeared spindles (68 and 74) driven through a belt 90 by a motor 84. The cutter assembly is mounted in a sub-frame (50, 52) which is pivotally mounted on pins (44, 44<SP>1</SP>) and which can be oscillated by a fluid cylinder 92 between the position shown in solid lines in Fig. 1 and the position shown in dotted lines. The rod guide comprises two blocks 104 which are each attached to a rod 114. The two rods 114 are joined by a yoke 112 to a fluid cylinder 108 by which the blocks can be moved between the solid line and the dotted line positions shown in Fig. 1. The rod to be cut enters the apparatus through a guide 16 which comprises a series of interconnected guide blocks of which the exit block is pivotally connected to the entry end of the inlet block 104. At the exit end of the apparatus is a diverter gate (12), Fig. 4 (not shown) which comprises a funnel divided into two convergent channels 120 by a baffle 119. There are spaced horizontal and vertical rollers (122, 124) at the exit end of the diverter gate. At the cutting point the rod is guided in the horizontal plane by guides (126) which each comprise a guide plate (130), Fig. 3 (not shown) attached to a mounting bracket (132, 134). The rod is guided in the vertical plane by two circular plates (128) one attached to each of the cutter mounts and rotating therewith. In each plate is an aperture (140) through which the cutter projects, Fig. 8 (not shown). Operation.-Assuming that a rod is passing through the apparatus along the path indicated by the solid line 14, when it is required to divide the rod, the cylinder 108 is actuated to retract the piston rod and carry the rod through the cutting zone. The peripheral speed of the cutters is not less than the linear speed of the rod. The trailing end of the cut-off length continues to pass into the left-hand side 18 of the diverter 12 and the newly formed leading end of the rod is directed into the right-hand side 18<SP>1</SP> of the diverter. Immediately after the guide blocks 104 reach the position shown in dotted lines in Fig. 1 the cylinder 92 is actuated to swing the cutter assembly to the position shown in dotted lines in Fig. 1 ready to divide the rod when it is moved through the cutting zone by reverse movement of the blocks 104. Movement of the guide blocks 104 may be initiated by limit switches associated with coilers receiving the rod from the exit shoots 18, 18<SP>1</SP> and oscillation of the cutter frame may be initiated by limit switches actuated when the guide blocks 104 reach their extreme position in either direction.