SU1719282A1 - Vibrating device to convey single flat parts - Google Patents

Abstract

The invention relates to general engineering, in particular to devices for transporting flat piece goods, and can be used in automatic feeding systems for process equipment. The goal is to increase device performance. The vibrating device for transporting flat pieces contains a tray (L) 1 mounted on jet mass 3 on springs 4 (L) 1 with nozzles (C) 2 inclined towards the transport side. Under L 1 with a gap installed pnevmokamera (P) 5 with a perforated upper wall. The pitch of the holes 6 in the perforation is equal to the pitch C 2. The clearance and the position of P 5 relative to L 1 are adjusted in the vertical and horizontal planes with the help of guides 7, 8 and screws 9, 10. The oscillatory movement L 1 receives from the pulsing pneumatic actuator the pneumatic actuator is supplied to П 5, passes through the openings 6 and then through C 2 acts on the transported part. At the same time, the air stream, exit from the pneumatic actuator, acts on L 1, causing it to move on the springs 4. Simultaneous action of the air jet on the transported part and moving it under the action of inertial forces from the oscillatory movement L 1 increases the productivity of the device. 2.z.p. f-ly, 1 ill. Yo

Description

The invention relates to general engineering, in particular to devices for transporting flat piece parts, and can be used in automatic power supply systems of technological equipment.

A device is known for pneumatically transporting flat parts, comprising a tray, the surface of which is equipped with nozzles inclined in the direction of movement of the parts, a pneumatic chamber located in the lower part of the tray, inside which a plate connected to a vibrator is mounted on elastic suspensions, and the pneumatic chamber is closed from below with an elastic membrane connected to stove. The movement of parts is carried out due to air pulses resulting from the reciprocating movement of the tray, which performs the function of a piston.

However, the tray has a mass many times greater than the mass of the transporting parts, which requires large amounts of electricity to communicate the reciprocating movement of the tray. In addition, the speed of transportation of parts here is low, since their movement is carried out only under the influence of pulsating jets of air.

Closest to the proposed one is a jet-vibration device for transporting goods, containing a tray with nozzles inclined in the direction of movement of the parts, united by a common chamber located in the lower part of the tray, into which air is supplied, and rigidly connected to the tray, equipped with a pneumatic vibrator, an exhaust chamber the pulsator of which is connected by an air duct to the common chamber of the tray.

Thus, in the known design, the movement of parts is carried out cyclically due to oscillations of the tray in the horizontal plane and periodically repeated air pulses.

In the first half of the cycle, the part moves forward together with the tray, being on its bearing surface, and in the second half of the cycle, with the reverse movement of the tray, again forward due to inertia and aerodynamic effects of air jets.

However, the tray is rigidly connected to the camera, the total mass of which is many times greater than the mass of the transported parts, which requires large amounts of electricity to set the system in motion, as well as inefficient transportation of parts, since the bearing surface oscillates only in the horizontal plane.

The aim of the invention is to increase the efficiency of transportation of parts and reduce energy consumption.

This goal is achieved by the fact that in the vibrating device for transporting flat piece parts containing a tray mounted on a fixed base with the possibility of reciprocating movement with nozzles for supplying compressed air inclined towards the side of transportation, a vibrodrive and a pneumatic chamber located under the tray and connected to a pneumatic pulsator , the pneumatic chamber is made with a perforated upper wall and is installed with a gap relative to the tray on a fixed base with the possibility of horizontal and vertical movements, and the step of perforation of the upper wall of the rave: t step of perforation of the tray.

In addition, the tray is mounted on a fixed base by means of elastic elements of the reactive mass and shock absorbers.

In addition, the elastic elements are made in the form of inclined springs.

In the proposed device, the tray is made separately from the pneumatic chamber and the vibrational movement from the vibrodrive is directly informed to it, and the pneumatic chamber remains stationary, and there is a gap between them so that the tray does not touch the pneumatic chamber during operation. In addition, the presence of springs (in the form of flat springs) installed at an angle to the base, allows the tray to oscillate along a curved path, which consists of the vertical and horizontal components of the vibrations. The vertical component of the oscillations reduces the friction force between the tray and the transported part during the movement, tossing the latter, i.e. carries out the regime with a tossing, and blowing with a pulsating stream of air allows to increase the flight time of a part on an air cushion. All this allows you to increase the efficiency of transportation of parts and reduce energy consumption for putting the tray in motion, and therefore the whole device.

The presence of reactive mass completely eliminates or minimizes the dynamic loads arising from vibration of the tray on the base, which does not cause a negative impact on the environment and maintenance personnel.

The drawing shows a device, General view.

The vibration device for transporting flat piece parts consists of a tray 1, equipped with nozzles 2, and a reactive mass 3, interconnected by springs 4, made in the form of flat springs and installed at an angle to the reactive mass 3. An air chamber 5 is installed under the tray with a gap, the upper the wall of which is perforated, and the pitch of the holes 6 of the perforation is equal to the pitch of the nozzles on the tray 1. The gap 1 and the position of the air chamber 5 relative to the tray 1 is adjustable in the vertical and horizontal planes in the guides 7 and 8 with screws 9 and 10. The clearance should be minimal so that at a certain point in time the air entering the pneumatic chamber flows out of the perforation holes 6 directly into the nozzles 2 of the tray 1 and so that the tray does not touch the pneumatic chamber during operation.

Tray 1 receives oscillatory motion, for example, from a pulsating pneumatic actuator (not shown), which through the duct 11 exerts a pulsating effect on the springs with compressed air 4. The reactive mass 3 is mounted on elastic elements 12 made, for example, of rubber. "

The nozzle 2 of the tray 1 is made with an inclination in the direction of movement of the part 13.

To eliminate the possible descent of parts 13 from the tray 1, the latter is equipped with sides 14 along the longitudinal sides. The supply of compressed air pulses to the pneumatic chamber 5 and to the springs 4 is performed cyclically.

The operation of the device consists of periodically repeating cycles and is carried out as follows.

In the initial state, the part 13 is located on the surface of the tray 1, which is located relative to the pneumatic chamber 5 so that its nozzles 2 are shifted back relative to the perforation holes 6 of the upper wall of the pneumatic chamber by the magnitude of the oscillation amplitude. This arrangement is achieved by pre-adjusting the position of the air chamber 5 in the guides 8 by means of adjusting screws

10.

When applying a pulse of compressed air acting on the spring 4, the tray 1 is notified of the oscillatory movement forward in the direction of movement of the part 13. Moving forward by the magnitude of the oscillation amplitude, the tray 1 together with the part 13 occupies a position where its nozzle 2 coincides with the perforation holes 6 of the upper the walls of the pneumatic chamber 5. At this moment, the part 13 is torn off from the tray 1 and at the same time a pulse of compressed air is supplied to the pneumatic chamber 5, which, through the combined holes (of the tray and chamber), acts under the support rhnost details, after which the tray 1 performs reverse, and part continues to move forward due to the inertia forces. and jets of compressed air until the next cycle.

The movement of parts on such a device is continuous. In the first half of the cycle, the part moves along with the tray, being on its bearing surface, making a forward movement, and in the second half of the cycle, when the tray moves backward, again forward on an air cushion due to inertia forces and aerodynamic action of compressed air jets.

The proposed device can work not only in the jet-vibrational, but also in the jet, with a pulsating air supply to the pneumatic chamber, or in vibration modes.

The setup of the device consists in the correct selection of the required parameters (amplitude and frequency of oscillations, air pressure in the pneumatic chamber) and is regulated by the corresponding drive chokes. Since all these parameters are interconnected, tuning and adjustment should be carried out during operation of the device to obtain the required quality and performance.

The adjustment of the position of the pneumatic chamber relative to the tray should be carried out after establishing the required oscillation amplitude by shifting the pneumatic chamber by an appropriate amount back with the adjusting screws 10.

Using the proposed device can reduce energy consumption by reducing the mass of the vibrating parts of the device and increase the efficiency of moving parts on trays of this type, increasing the speed of transportation by introducing flat springs (springs) into the device that implement the toss-up mode,

Claims (3)

Claim 1. Vibration device for trans. porting of flat piece parts, comprising a tray mounted on a fixed base with a reciprocating movement with inclined nozzles for supplying compressed air, a vibratory actuator and a pneumatic chamber located under the tray and connected to a pneumatic pulsator, characterized in that, in order to increase productivity , the pneumatic chamber is made with a perforated upper wall and is installed with a gap relative to the tray on a fixed base with the possibility of horizontal Foot and vertical displacement, wherein the step of perforation of the upper wall of the tray is perforation step. 2. The device pop. 1, due to the fact that the tray is mounted on a fixed base by means of elastic elements, reactive mass and shock absorbers. 3. The device according to paragraphs. 1 and 2, which implies that the elastic elements are made in the form of inclined springs.