SU797826A1 - Device for separating sheet blanks from pile - Google Patents

Description

one

The invention relates to the automation of sheet metal forming and can be used to load strip blanks of the working area of the press.

A device for separating sheet blanks from the foot is known, comprising a lifting table for a stack of sheets, associated with power cylinders mounted on the base, lifting, located with lifting table supporting plate supporting the carriage with gripping bodies connected with the drive of its movement, made in the form of a power cylinder, through the transmission mechanism 1.

The known device has a large size and not enough Nchdezhno work.

The purpose of the invention is to reduce the size and increase the reliability of the device.

The goal is achieved. By the fact that the drive for moving the carriage is located under the lifting table, the transmission mechanism is made in the form of a drum mounted on the base and driven into rotational movement by the drive of the drum carriage, two mounted on the supporting

a slab of blocks located on both sides of the carriage, and a cable connected to it, which clasps the drum and slung over the blocks.

FIG. 1 shows the proposed device, a general view; in fig. 2, section A-A in FIG. one.

A device for separating sheet blanks from a foot contains

0 base 1 with guide posts 2, on which a support plate (guide plate) 3, a lifting table 4, two power cylinders 5 are placed, the rods 6 of which (plungers) are connected 5 with the lifting table 4.

On the support (guide) plate 3, a feed carriage 7 is installed with a sliding grip body 8. A sensor 9, which interacts with a pin 10 mounted on a lifting table 4, and spring snappers 11, are fixed to the guide-joints 2.

On base 1, a rod 12 is mounted with a piston 13 of a power cylinder, the housing 14 of which is mounted (5VL is movable and is kinematically connected with the shaft 15 of the Ifc drum, for example, using a rack and pinion gear.

On base 1, sensors 17 and 18 are fixed on both sides of housing 14.

The working cavities of the power cylinder through the spool 19, controlled by the electromagnetic coil 20, are connected to the working medium supply system, and the working cavities of the power cylinders 5 are connected through the spool 21, controlled by the electromagnetic coil 22 to the working medium supply system.

Blocks 23 and 24 are fixed on the guide posts 2, through which. The cable 25 is connected over the feeding carriage 7 and wound around the drum 16.

The device for separating sheet blanks from the foot can operate in two modes.

The device in the first mode works as follows.

The stack of blanks of the blanks is installed on the lifting table 4. The housing 14 is in the extreme right position and acts on the sensor 18, which sends a signal to connect the electromagnetic coil 22 to the electrical network.

The electromagnetic yoke 22 includes a spool 21 that connects the source of supply of the working medium to the working cavity of the power cylinders 5, which move the lifting table 4 with the stack of sheet blanks upward until the top sheet blank touches the supporting (guide) plate 3, after which the electromagnetic KaTSTUKa is turned on 20, and the working medium through the spool 19 enters the working cavity of the power cylinder.

The housing 14 moves to the left and through the rack and pinion transmission and the cable 25 moves the feeding carriage 7 along the disputed (guide) plate 3.

At this time, the lift table 4 is lowered, and the top sheet: the workpiece is on the spring cutters, 11. With the further movement of the feed carriage 7 to the left, the gripping body B acts on the sheet stock and moves it along the spring cutters 11 to the working area of the press (in the drawing not shown). at the end of the stroke, the housing 14 is inactive on the sensor 17, which (gives the command to switch the spool 19. The housing 14 moves to the right and returns the feeding carriage 7 to its original position.

After the stack of sheet blanks is used up, pin 10 acts on sensor 9, which sends a signal to shut off the device drives.

After loading the lift table 4, the cycle is repeated.

In the second mode, the device operates as follows.

The lifting table 4 is moved upward from the stack-shaped blanks until the upper sheet blank touches the supporting (directional) plate 3. Then the spool 19 is turned on, and the feeding carriage 7 is gripped by the gripping member 8 and the upper sheet 5 is moved from the foot to the working area press. At the end of the working stroke, the housing 14 acts on the sensor 17, which delivers the reverse movement of the housing 14. 0 In the far right position, the housing 14 acts on the sensor 18, which signals the working stroke of the housing 14 ..

Then the cycle is repeated.

Claims (1)

1. USSR author's certificate No. 385654, cl. B 21 D 43/24, 1971.