SU1214762A1 - Device for gripping flexible sheet material - Google Patents

Description

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The invention relates to the leather industry of light industry and can be used in devices for feeding a flexible sheet material into a predominantly bare, processing machines.

The purpose of the invention is to increase the reliability of the grip of a flexible sheet material.

In the proposed device, according to the goal, a probe is located in the center of the suction cup, which enables the gripping drive to be in contact with the material, the gripper being placed in the suction cavity, and the suction cup has a nozzle in the form of a truncated cone connected to the suction cup with its large base.

FIG. 1 shows a device for gripping a flexible sheet material j section, a general view; in FIG. 2, section A-A in FIG. one,

A device for gripping a flexible sheet material contains a vacuum suction cup 1, which, through adapter nick 2, is connected to a pneumatic cylinder 3. Inside the suction cup there is a tong clamp 5 consisting of levers 4 and 5 mounted with rotation on axes 6 and 7 fixed in the suction cup . At one end of the levers 4 and 5, clamping jaws 8 and 9 are installed. The other end of the levers through hinges 10 to 11 are pivotally connected to the rod 12 of the pneumatic cylinder, which drives the gripper. The suction device 1 has a nozzle 13, made in the form of a truncated cone, which promotes the formation of a gol fold inside the suction cup. The pneumatic cylinder body is made in the form of an ejector and consists of an outer 14 5, middle 15, inner i 16 sleeves and a pneumatic distributor 17. Between the outer sleeve 14 and adapter 2 an ejection nozzle 18 is installed. Inside the pneumatic distributor there are spools 19 and 20 that control the operation of the pneumatic cylinder and the ejector, and the spring 21, and in the exhaust cavity of the pneumatic cylinder, there is a spring of return stroke 22, In the pneumatic cylinder 23, there are two holes for pins 24 and 25 fixed in the lug 26, as well as the central opening A for supplying compressed (5th ozduha to devices inside gptoka core races 12 pnevmotsili

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Probe 27 is inserted, including a gripping drive in contact with the material.

The device works as follows

5 A transporting mechanism (not shown) brings the device to a pick-up, located in the pile in a pile or a cassette, and lowers it until it touches the area.

10 vol. At this time, the tong tong is open, the piston of the pneumatic cylinder is in the lower position under the action of the spring 225, the valve 19 blocks the channel B for supplying air to the working cavity of the pneumatic cylinder and the valve 20 blocks the channel B for supplying air to the ejector. Channel D serves for constant communication of the exhaust cavity of the pneumatic cylinder 20 with the atmosphere through the opening D in the spool 19.

Overcoming the resistance of the spring 21 transporting mechanism through the eyelet 26 and the pins 25 and 24 voz25 acts on the spool 20, which through the channel B supplies compressed air to the ejector, creating a vacuum inside the suction cup through the hole E. Under the action of the pressure that has been formed, the area of the mole that contacts with the suction pump is drawn into the suction cavity by an amount sufficient to form a fold. The fold formed acts on the probe 27, which moves the slide valve 19 and, through channel B, supplies compressed air to the working cavity of the pneumatic cylinder. The piston, having overcome the resistance of PRUKIN 22, goes up and

.. closes the tong grip, which zazhte-5aet crease gol. At the end of the stroke, the rod 12 of the pneumatic cylinder through the spool 19 closes the channel B and thereby stops the flow of compressed air into the ejector. The air flow rate decreases sharply 5 and the value of pressure in the system rises. These forces the pressure of the clamping force to reach the tongue claw and at the same time a signal is given, and the control panel

- a transport mechanism that lifts the mole and transports it to the processing machine.

To release, the cusps from the clamp jaws stop the supply of compressed air to the i-ry system and connect the working cavity of the pneumatic cylinder to atmospheric pressure.

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Under the action of the spring 22, the piston returns to its original position,

 g0ids / r

open tick tongs. Then loop

repeats.

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nat.2

Claims (1)

! CAPTURE DEVICE FLEXIBLE SHEET MATERIAL, predominantly a bolt containing a body mounted on it with the ability to move the suction cup, tick-borne grip and suction drive, characterized in that, in order to increase the grip reliability of the sheet material, it has a gripping drive and a probe located in the center of the suction cup and providing the engagement of the capture drive in contact with the material, the capture being placed in the cavity of the suction cup, and the suction cup has a nozzle in the form of a truncated cone connected to the suction cup with its large base.