SU1046124A1 - Apparatus for feed and removal of blanks from press working zone - Google Patents

Abstract

The lifting arrangement is driven by a cam, which transmits its movement via a roller to a gear rack. A gear transmission, which is mounted in a frame, increases the vertical movement and transmits it to a second gear rack. The second gear rack carries a beam on which a carriage is supported on rollers. The carriage carries the grip arms of the lifting arrangement. The linear drive of the carriage is by means of a second cam and a lever system.

Description

2, the device according to claim 1, characterized in that the stroke multiplier is made in the form of a casing installed in the casing of the shaft with three successively arranged gear wheels, two gear racks, with

.10t6l2t

In this case, the middle gear wheel is installed with the possibility of interaction with the pusher, and the extreme gear wheels - with the possibility of interaction with the rack bars.

I

The invention relates to the automation and mechanization of metal forming.

A device for feeding and removing workpieces from the working area of the press is known, which contains a carriage in the vertical and horizontal planes of a carriage with grabs associated with a drive made in the form of a pusher and a cam mounted with the possibility of interaction with the pusher (U5 PS 3199 3h

The disadvantages of the known device are the complexity of the design and significant wear of parts.

The purpose of the invention is to increase the reliability of the device.

The goal is achieved by the fact that in the device for feeding and removing blanks from the working area of the press, there is a slide carriage movable in vertical and horizontal planes connected with an actuator made in the form of a pusher and a cam mounted with the possibility of interaction with the pusher. made in the form of a toothed rack, the device is equipped with a stroke multiplier, a lifting rod associated with the grabs and a lifting beam, the splice plate is arranged to interact with the stroke multiplier, and the lift bar Alka with the ability to interact with the lifting rod.

The stroke multiplier is made in the form of a casing installed in the shaft casing with three consecutive gears, two gear racks, while the middle gear wheel is installed with the possibility of interaction with the pusher, and the extreme gear wheels - with

the ability to interact with gear racks. I

FIG. 1 schematically shows the proposed device, side view, 5 in FIG. 2, the same, front view; in fig. 3 lifting beam in the form of a profiled rail.

. At the actuator 1, on the common shaft 2 there is a cam 3 for longitudinal movement 0 and a cam k for vertical movement. The cam 3 actuates by means of a mechanism (not shown) carriage 5, which in the guide box 6 and on the rollers 7, axis 5 has a horizontal input or output, e of the cam k for a vertical stroke, the movement is transmitted through the roller 8 to the telcator 9 in the form a toothed rack actuating a toothed wheel 01 in the housing 11. At both ends

gears 10 through articulated. the shafts 12 and 13 the rotational movement. with multiplication of the strokes is transmitted to both

toothed wheels 14 and 15 in shells 5 TB and 17. The rotational movement of gears 14 and 15 is transmitted to gear racks 18 and 19f rigidly connected to the lifting bar 20, as.: reciprocating motion. 0 The lifting beam can be a straight or profiled rail. On the lifting beam 20, the roller 21 moves attached to the lifting bar 22. The lifting rod 22 na5 is guided in the carriage 5 by a ball pin with a pin 23 and transmits the vertical movement of the lifting beam 20 to the grapples 24 of the mechanism. With a large range of the number of press strokes that cause large acceleration forces, a pneumatic working cylinder 25 is designed,: the pressing roller 8 against the cam 4.

Due to the fact that the lifting beam 20 is a straight or

3

profiled rail for vertical movement. There are various possibilities if we ignore the variability of cam k or stroke multiplier 26. The stroke multiplier 26 consists of a pusher 9 in the form of a toothed rack, a gear wheel 10, an articulated shaft 12 and 13. gear wheels 14 and 15, and gear racks 18 and 19. If the lifting beam 20 is straight, then the vertical movement accurately transmitted on cam

the disk 4 and the multiplied or doubled is transmitted in accordance with the multiplier 2b of the stroke onto the grapples 2. If the lifting beam 20 is the profiled rail of FIG. 3) i then you can achieve a larger vertical stroke.

It is recognized as an invention according to the results of the examination carried out by the Office for the Invention of the German Democratic Republic.

Claims (2)

1. DEVICE FOR SUBMITTING AND REMOVING PROCESSES FROM THE WORK AREA OF THE PRESS, comprising a carriage movable in vertical and horizontal planes with grabs associated with a drive made in the form of a pusher and a cam installed with the possibility of interaction with the pusher, characterized in that the pusher made in the form of a gear rack, the device is equipped with a stroke multiplier, a lifting rod associated with grabs and a lifting beam, the pusher is installed with the possibility of interaction with the stroke multiplier, and the lifting beam with the possibility of awn interaction with the lifting rod. SU ... 1046124 • 1046124 2. The device according to π. 1, characterized in that the stroke multiplier is made in the form of a casing installed in a shaft casing with three gears in series, two gear racks, while the middle gear is installed with the possibility of interaction with the pusher, and the extreme gears with the possibility of interaction with toothed racks.