SU660763A1 - Measured-out blank feeding arrangement - Google Patents

Description

(gate) 8, mounted on the rod with the possibility of reciprocating movement in the cycle of the cross-wedge rolling mill. The cutter 9 is made in the form of a strip with a through transverse cutout facing the base and is installed in the guide 10 in the same way with the possibility of reciprocating movement of the pneumatic cylinder 11 by the rod controlled by the action of the tab 12 on the contactless limit switches 13 and 14. The stop 15 is hinged on the cutter with the roller 16 with the possibility of rotation about the axis 17 by means of a pneumatic cylinder rod 18, controlled by the action of the petal 19 on the contactless limit switches 20 and 21.

The bases are rigidly fixed to the strips 22 and 23, fixedly hinged on the axis, perpendicular to the horizontal plane of the base 24 and the spring-loaded spring 25 with the possibility of acting on the limit switch 26.

On the base, a guide 27 is fixed with the possibility of separating the non-dimensional blank 28 from the total flow and a window 29 is made.

The device works as follows.

The blanks 4 from the tank (not shown) under pressure on the receiving tray 2 fall into the cutter 9 cutout and abut against the stop 15. During the working stroke, the cutter separates one workpiece from the total flow with the help of a pneumatic cylinder 11 and moves it along the guide 27 in the drive 5. delaying subsequent in the device control the length of the workpieces.

At the end of the stroke of the shutter, the petal 12 acts on the limit switch 14, which opens the control circuit of the pneumatic cylinder 11. The cutter returns to its original position to receive the subsequent workpiece, and the petal 12 acts on the limit switch 13, which closes the control circuit of the pneumatic cylinder 11. The shut-off valve starts the stroke and the cycle repeats.

When filling blanks of the drive 5, the sensor 6 turns off the Cutter from work.

When a cutter 9 of the workpiece gets into the notch, its nominal length is limited to one end of the workpiece against the support 15, and the other one enters the gap between the slats. At the beginning of the working stroke of the shutter, the end of the non-gauge workpiece rests on the bar 23, which, overcoming the resistance of the spring 25, turns on the axis 24 and presses the limit switch 26, which opens the control circuit of the pneumatic cylinder 11 and closes the control circuit with the pneumatic cylinder 18. The shut-off valve returns to its original the position, and the pneumatic cylinder stem 18 coBepina moves forward and presses roller 16,

which lifts the stop 15, turning it around the axis 17. The cutter cutout opens and the nonmeasured workpiece 28 under the pressure of the followers along the guide 27 is pushed onto the base 1. At the end of the forward stroke of the rod, the petal 19 acts on the limit switch 21, opening the pneumatic cylinder control circuit 18. .. The rod of the pneumatic cylinder 18 returns to its original position, and the stop 15 is lowered onto the non-dimensional blank and, when it comes off from the guide 27, delays the subsequent blank in the shut-off device. The petal 19 acts on the limit switch 20, which closes the control circuit of the pneumatic cylinder 11, and the shut-off valve starts the working stroke, and the non-dimensional blank 28 is dropped into the window 29.

When a billet cutter hits the cutout, the nominal end of the billet is shorter, abutting against the stop 15, and the end of the subsequent billet also falls into the gap between the slats. At the beginning of the working stroke of the trimmer, the subsequent preform with the other end abuts against the bar 23 and the process for removing the short preform proceeds as described.

The pusher 8 by means of the pneumatic cylinder 7 pushes the workpiece from the accumulator 5 to the tray 4 in the work cycle of the cross-wedge rolling mill.

The advantage of the feeder, which rejects non-gage blanks without stopping the technological process, over similar mechanisms known to us is its reliability in operation, which will improve the performance of the cross-wedge rolling mill and improve the quality of the manufactured products.

The expected economic effect that can be obtained by introducing the mechanism for feeding blanks to the cross-rolling mill at the machine-building enterprises will amount to 36 thousand rubles.

Claims (2)

Invention Formula A device for feeding dimensional workpieces, for example, to a cross-rolling mill, which contains pockets, guiding and receiving chutes mounted on the base, a cutter with a stop mounted on it, which can be forward and backward in the direction perpendicular to the axis of the chutes and the cutter movement actuator , characterized in that, in order to increase reliability and productivity, it is equipped with a drive for turning the stop around an axis parallel to the axis of the receiving tray, and a mechanism for rejecting non-dimensional blanks, in the form of two strips parallel to the axis of the receiving tray, placed between the guide the tray and the cutter, and the limit switch, with one of the slats fixedly mounted on the base from the forward stroke of the rebooter, and the second plate mounted on the base from the reverse of the cutter rotatably around an axis perpendicular to the plane of the base, and spring-loaded in the direction of its rotation, wherein the limit switch is mounted with the possibility of contact with the second plate and electrically connected with the actuator of the shutter and the drive of the stop. 2. The device according to 11. 1, characterized in that the drive for moving the stop is made in the form of a roller mounted on the base of the ram and a roller mounted on the stop with the possibility of interaction with the rod. Sources of information taken into account in the examination 1. Sat. "Abrasive machining and processing of metals by cutting and pressure," Science and Technology, Minsk, 1975, p. 98-100.