Patent GB-377526-A (GB)
Title: A method of and a machine for producing bundled small wood
IPC: C08C1/15
Filed: 1931-11-07
Abstract: 377,526. Cutting and bundling wood. SCHAPIRO, G., 18A, Pariser Strasse, Berlin. Nov. 7, 1931, No. 30954. Convention date, Nov. 21, 1930. [Class 94 (i).] In a machine for cutting and bundling wood, the split wood is conveyed, in the position it occupies after splitting, in the form of a stream to dividing and bundling apparatus. Cutting wood. Billets of wood are placed in a trough-like receiver of a conveyer 2, Fig. 2, and pass beneath an angular, verticallyreciprocated splitting knife 3. A resilient coverplate 4 holds the wood in an upright position during the return movement of the knife, and the wood passes along a trough 5 towards the bundling press in a stream with the split pieces in an upright position. Bundling wood. The bundling press is mounted for rotation about a vertical shaft 9 and comprises a rotary disc 12 carrying a semicylindrical gripper 13 adapted to co-operate with a counter-gripper 15 to divide a portion of split wood from the stream and assemble and hold it for bundling. The top surface of the end of the stream is controlled by a plate 21 which moves with it and is moved back by a quick return movement when a portion has been taken. As the counter-gripper 15 passes the end of the stream, it is swung inwardly for clearance and immediately reverts to the position shown in Fig. 2. The gripper 13 then carries off a portion and moves into close juxtaposition with the counter-gripper, as shown in Fig. 4. The counter-gripper, in this position, is actuated to exert pressure upon the bundle in a series of jerks before the bundling operation begins. Wire is fed from a reel 34, Fig. 2, past tensioning rollers 35, 36, across the front of the trough 5, the free end being held by grippers 37. When a portion of wood is separated by the gripper 13, the wire is carried round the bundle and the two ends are cut off by shears 63. Before the cutting operation, the free end is released by the grippers 37 and the tensioned wire between the bundle and the trough is drawn into them, in readiness for the next operation, by a hook 47, Fig. 7. The hook is mounted on a bar 48, one end of which is pivotally and adjustably mounted on a block sliding in a slotted guide 54, also adjustable by means of a screw 53. Another point of the bar is adjustably secured in a block 55 on a link 56, the other end of which is connected to a crank pin. The hook is caused to describe a closed path shown on the left of Fig. 7, and to thrust the tensioned wire between the jaws 37. The jaws are longitudinally movable in a clamping cone 38 by a cam 46 acting upon a roller 45 on a pressure slide 44. When the cam moves tho slide to the left, the jaws are resiliently closed by the action of a spring 41, when the pressure of the spring is released, springs 40 move the jaws to the right, and a spring 39 opens them. Twisting wires. The free ends of the wires are twisted together by jaws 72, Fig. 3, similar in construction to the jaws 37, and mounted on an arm 70 pivoted at 69 to a bracket 64. The arm 70 is actuated by a slotted guide 66 pivoted at 65 accommodating a sliding block 67 on a crank arm 68 on the shaft 9 ; the arm 70 also having a sliding block 71 in the guide. Rotation of the arm 68 causes the jaws 72 to follow the bundle in its circular travel, during which time the ends of the wires are twisted and released, and to return quickly to the starting point. The jaws are journalled in a sleeve of a bevel wheel 75, engaging, through gears 76, 77, a fixed toothed ring 78, so that rotation takes place during the forward travel. The jaws are opened and closed at the appropriate moments by axial movement of a pressure slide 73. The finished bundle falls through an opening 32 on to a delivery conveyer. The bundling and wire twisting devices may be duplicated.