SU1207585A1 - Arrangement for separating a sheet from a stack and feeding it to the machining zone - Google Patents

Description

The invention relates to the field of cold metal forming and can be used to separate the sheet from the foot and feed it into the treatment area.

The purpose of the invention is to increase reliability in operation.

FIG. 1 shows a diagram of a device for separating a sheet from a foot and feeding it to a treatment zone; in fig. 2 - coupling the membrane with the spool.

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thirty

A device for separating the sheet from the foot and supplying it to the treatment zone contains a power cylinder 1 with a piston 2 fixed on the rod 3, at its free end a separating suction cup 4 is fixed. The stem 3 connects the upper cavity of the power cylinder to the suction cup 4.

The upper cavity of the power cylinder 1 is connected to pipeline 5 with a vacuum chamber 6, pipe 7 to the outlet 8 of the injector tube 9 and 25 by the opening 10 of the slide valve body 11. The lower cavity of the power cylinder 1 is connected by pipe 12 to the hole 13 of the valve spool 11, and pipe 14 is connected the opening 15 of the housing 11 with the outlet 16 of the injection tube 17. The opening 18 of the gold sleeve housing 11 is connected to the atmosphere, the core of the spool 19 has a longitudinal channel 20 in the area of the holes 13 and 15 of the valve housing in its original 5 position. The core of the spool 19 is constantly pressed to the initial position by the spring 2.1 and is connected by a common stem 22 to the diaphragm 23 behind. chamber 6. Compressed air from line 24 is supplied through an air valve 25 to the inlets of the injection pipes 9 and 17. The cavities of the spool body are connected to the atmosphere by openings 26 and 27. Compressed air from the injection pipes 9 and 17 is released into the atmosphere through nozzles 28 and 29. Position 30 marked sheet. The core 19 is made annular channels 31 and 32.50

A device for separating the sheet from the foot and feeding it to the treatment area works as follows.

When the valve 25 is opened, the compressed air rushes to the nozzles 28 to 29 55 of the injector tubes 9 and 17 and as a result of its outflow into the atmosphere at the outlets 8 and 16 of the injector tubes

There is a vacuum, which through pipeline 7 transports ect into the upper cavity of the power cylinder 1, through pipeline 5 into the vacuum chamber 6, through pipeline 14 into the hole 15 of the slide valve body 11, then through the longitudinal channel 20 in the middle of 1 Nick 19 and hole 13 through the pipeline 12 into the lower cavity of the power cylinder 1. Since at this moment no vacuum is formed in the upper cavity of the power cylinder due to its connection through the hollow rod 3 with the atmosphere, the piston 2 with the rod 3 rushes down and presses the suction cup 4 to the sheet product 30. C. of this moment under The suction device 4 also forms a vacuum, transferring to the upper cavity of the power cylinder 1. With the appearance of a certain amount of vacuum in the upper cavity of the power cylinder 1 and in the vacuum chamber 6, the membrane 23 is drawn into chamber b, carrying the rod 22 and the spool 19, compressing the spring 21.

When the core 19 reaches the extreme position, the hole 10 is connected to the opening 15 of the housing 11 through the annular channel 31 in the core 19, and the opening 13 to the opening 18 through the other annular channel 32 in the core 19 with the atmosphere. As a result, vacuum is lost in the lower cavity of the power cylinder 1, and it is enhanced in the upper cavity of the power cylinder 1. Due to this, a pressure difference arises in the cylinder cavity and the piston 2 moves upwards. The article 30, pressed against the suction cup 4, rises. At the end of the lift, the piston 2 remains in its extreme position until the valve 25 closes the access of compressed air from the line 24 to the inlets of the injection pipes 9 and 17. The raised sheet product otrashaet with the action of its own weight on the output link of the device transporting the product in the treatment area (not shown). Under the action of the spring 21, the membrane 23 with the core 19 is moved to the right, occupying a position preceding the beginning of the next working cycle, starting after the cylinder is retracted to its initial position above the foot, with and buildings 30.

The annual economic effect from using the invention on one automatic line will be about 25 thousand rubles.

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FIG. i

23 27 21 19

18 10

22

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Claims (1)

A DEVICE FOR SEPARATING A SHEET FROM A STOP AND GIVING IT TO THE PROCESSING AREA, containing a vacuum gripper having a movable power cylinder, a piston mounted in the cavity of the power cylinder, a hollow rod fixed at one end in the piston, and a hollow suction cup mounted on the free end of the hollow rod , a vacuum generating mechanism connected to the compressed air line, a spool having a hollow body in which at least four holes are made, and a core mounted in the body cavity with the possibility of movement and having two annular channels and one longitudinal channel, pipelines connecting the vacuum mechanism through the openings of the housing and the core channels with the piston cavities of the power cylinder, characterized in that, in order to increase reliability, the vacuum mechanism is made in the form of injection mats, one of Ko _with toryh connected to above the piston po- ® Lost cylinder crane connecting the compressed air pipe with the injection head and a vacuum chamber connected to the cavity above the piston of the jack and with m mechanism of creating a vacuum and having a spring-loaded membrane associated core via an additional rod. 'I SU <, „1207585