SU1080960A1 - Machine for working the ends of wooden posts for railway cars - Google Patents

Description

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 The invention relates to the woodworking industry. A known machine for processing the ends of wood blanks, comprising a tactile cutting mechanism with knives fixed to the plates mounted on a shaft with the possibility of reciprocating movement of the knives in the vertical plane, and an actuator lj. Also known is a machine for treating the ends of wooden wagon racks including a frame, a mechanism for centering and fixing blanks, a cutting mechanism with knives, copiers with rolls and a drive 23. The disadvantages of the known machines are low productivity and design complexity. The purpose of the invention is to increase productivity and simplify the design of the machine. This goal is achieved by the fact that the machine is equipped with a double-shouldered carriage with chages and a box-shaped guide mounted on the frame, on the outer planes of which copiers are located, and the inner-mounted carriage is mounted in a screw pair with using an electric motor, let us take on the carriage the articulated double-arm levers on mutually perpendicular planes, on one arm of which rollers interacting with copiers are installed in pairs, and on others - knives of the cutting mechanism. FIG. 1 schematically shows the proposed machine, side view; in fig. 2 - the same, top view; in fig. 3 is a section A-A in FIG. one; in fig. - two shoulders carriage lever, side view; in fig. 5 the same, top view. The machine for treating the ends of wooden car racks contains the frame 1, the mechanism 2 centering and fixing the workpieces 3, the box-shaped guide k with the copiers 5 on its outer surfaces and the drive 6. Inside the guide k there is a movable carriage 7 of the cutting mechanism 8, which contains mounted on a carriage 7 in mutually perpendicular planes by means of axles 9 two shoulders levers 10. On one shoulders of two shoulders levers knives 11 are mounted, on the other - copy rollers 12. Inside the guide k is rigidly fixed support Fifth 13 for the workpiece. The drive 6 comprises an electric motor C, a screw pair consisting of a screw 15 and a nut 16; and an electromechanical brake 17. At the ends of the stroke of the carriage 7, on the guide 4, limit switches 18 and 19 are installed, electrically connected to the control circuit of the drive 6. The machine is operated as follows. The wooden billet 3 of the carriage rack is inserted into the mechanism 2, centering and fixing, and is fed into the guide board up to the stop into the supporting spot 13. The billet is clamped in mechanism 2 and the drive 6 is turned on. At the same time, the electric motor 1 rotates the screw 15 through the nut 16, moves carriage 7 in guide 4 in the direction of the mounted drive. At the beginning of the working stroke, the carriage-7-rollers-12 are driven over the inclined sections of the copiers 5 and the two shoulders levers 10 turn on the axles 9 inward of the guide. The knives 11 of the cutting mechanism 8 cut from four sides into the workpiece 3 ds as long as the rollers 12 do not go over to the straight sections of the copiers 5, while moving along which the knives 11 cut the wood from the end of the workpiece 3. At the end of the stroke, the carriage 7 interacts with the end a switch 19 which, by switching its contacts, switches off the electric motor 14 and turns on the electromechanical brake 17. After the motor stops, the drive 6 is turned on to reverse, and the carriage 7 moves to its original position. At the same time, when the rollers 12 pass through the inclined sections of the copiers 5, the two shoulders levers 1P turn and the knives 11 are divorced. At the end of the stroke, the carriage 7 interacts with the switch 18, which, by switching its contacts, disconnects the electric motor 14 and turns on the electromechanical brake 17. The finished carriage Slug is released in mechanical low 2 from fixing, removed from the machine, laying another workpiece, and repeating the cycle yut. .

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Claims (1)

MACHINE FOR PROCESSING ENDS OF WOODEN wagon racks vklyuchayu- conductive base frame, and a centering mechanism for fixing workpieces with knives cutting mechanism, copiers with rollers and a drive, characterized in that, in order to increase ^Manu-: clusive and simplifying its structure, the machine is provided with a carriage with two shoulder levers and a box-shaped guide mounted on the bed, on the outer planes of which copiers are located, and inside the guide there is a carriage with a drive, which is made in the form of a screw pair with an electric motor, with it is pivotally mounted on the carriage in mutually perpendicular planes _of double-arm levers, one on the shoulders of the rollers pairs which, interacting with the cams, while others - knives cutting mechanism.