SU1553457A1 - Jigging bin feeder - Google Patents

Abstract

The invention relates to a vibration technique, namely to vibratory bunker feeders, intended for the single issue of parts in the treatment area. The purpose of the invention is to improve the performance of the feeder when working with complex shaped parts. The vibratory bunker feeder contains a base 1 on which an electric motor (ED) 2 is fixed. The shaft 4 of the ED 2 is connected to a bin-bin 6 mounted on elastic elements 7. On the base 1 a pre-bunker 9 is fixed, the outlet 8 of which is formed by two the inclined planes 10 and 11. Under the opening 8, an inclined bottom 12 is fixed, on which the mechanism of portion dispensing of parts is mounted. The latter is made in the form of a power cylinder with a pusher. The outlet opening 8 is displaced relative to the axis of the bowl-bin 6. During operation of the feeder, as the bowl-bin 6 is emptied, the mechanism 13 of single piece dispensing is activated. Due to this, the oscillation amplitude of the feeder is maintained at a stable maximum level. This, in turn, improves the performance of the feeder as a whole. 2 hp f-ly, 5 ill.

Description

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details. The latter is made in the form of a power cylinder with a pusher. The outlet opening 8 is displaced relative to the axis of the bowl-bin 6. During operation, the feeder as the bowl-bin 6 is emptied, the mechanism 13 for issuing parts is activated. Due to this, the oscillation amplitude of the feeder is maintained at a stable maximum level. This, in turn, improves the performance of the feeder as a whole. 2 hp f-ly, 5 ill.

The invention relates to a vibration technique, namely to vibratory bunker feeders, intended for the single issue of parts in the treatment area.

The aim of the invention is to improve the performance of the feeder when working with items of complex shape.

FIG. 1 schematically depicted

the proposed vibratory hopper feeder incision; in fig. 2 is a view A of FIG. 1; FIG. 3 is a motor starting circuit; in fig. 4 is a circuit diagram of an electric cylinder control circuit; in fig. 5 diagram of the operation of the device.

The vibratory bunker feeder contains a base 1, on which the motor case 2 is fixed, which plays the role of an excitation oscillator,. A bracket 3 is fixed on the base 1. The shaft 4 of the electric motor 2 is connected via an elastic connection 5 (made, for example, in the form of a bellows) to a hopper 6 mounted on inclined elastic elements 7 on the base 1 "Outlet 8 of a pre-bunker 9 mounted on a bracket. 3, formed by two inclined walls 10 and 11, installed with a gap one relative to the other, and offset from the axis of the bowl-bin 6. Under the opening 8 there is an inclined bottom 12 attached to the base 1, The mechanism 12 for dispensing parts is fixed on the bottom 12 in the form of a power cylinder 1 with a pusher 15 attached to K. STOCK 16 POWER CYLIN-

core 1. On the basis of 1 also fixed sensors 17 and 18 of the amplitude of oscillations. In order for the shaft 4 of the electric motor 2 to perform torsional oscillations, two windings 19 and 20 of the stator 21 of the electric motor 2 are connected in series oppositely, and the winding 22 is connected via a resistor 23 to a constant voltage source

The electric control circuit of the power cylinder 14 consists of a control key 2k, including a diode 25, which through a resistor 26 is connected to a resistor 27 and the base of the transistor 28, whose collector is connected to a resistor 29 and through a switching capacitance 30 to the first input of a pulse amplifier 31, of the optocoupler 32, one of the inputs of which is connected to the resistor 33, and the second to the thyristor 34. The control input of the thyristor 34 (the second control input of the pulse amplifier 31) is connected to the output of the integrator 35. The output of the opgron 32 of the pulse usi It is connected to the diagonal of the bridge 36. The output of the pulse amplifier 31 is connected to the drive input of the power cylinder 14. Sensor 17 is connected to the input of switch 24, and sensor 18 is connected to the input of integrator 35. The latter consists of transistor 37, resistors 38-40 and the capacitor 41. The resistor 39 is also connected to the diode 42. The sensors 17 and 18 are installed opposite the protrusion 43 connected to the bowl-bin 6.

Vibrating feeder works as follows.

The parts are poured into the pre-bunker 9. A alternating voltage of the required frequency is applied to the windings 19 and 20, and a constant voltage is applied through the rheostat 23 to the winding 22. The shaft 4 of the electric motor 2 oscillates around its axis o in this case. These vibrations are transmitted through the elastic coupling 5 and the elastic elements 7 to the bowl-bin 6. Under the action of the screw vibrations of the workpiece, they move upward along the screw tray of the bowl-bunker 6, If in The bunker 6 contains the mass of parts smaller than the specified maximum permissible value (or there are no parts at all), the amplitude of oscillations of the bowl & because it is not too large does not fall into the zone of operation of the sensor 18. With

the output of sensor 18, the negative polarity signal is fed to the input of integrator 35. Since the integration constant o, (resistor 39 and capacitor H) is chosen less than the integration constant (resistor 38 and capacitor 1), the voltage across the capacitor will begin to decrease reaching a predetermined value at which the transistor 37 breaks off. From the output of the integrator 35 (collector of transistor 31), the second control input of the pulse amplifier 31 receives a signal that opens the thyristor 3. The current passing through the thyristor 3 goes to the control input (to the LED) of the optron 32. The output of the optocoupler (thyristor) 32 closes the diagonal of the bridge 36 and thus turns on the drive of the power cylinder 14; in the bowl-bunker 6.

As the bowl-bin 6 is filled with details, the amplitude of its oscillations increases (the oscillating projection kj falls into the zone B of operation of the sensor 18). In this case, positive polarity pulses from the output of the sensor 18 are fed to the input of the integrator 35. A constant voltage (+ Un) through the resistor 38 will be integrated by the capacitor Jfl and when the preset value is reached, the transistor 37 closes, disconnecting the control signal to the control input thyristor 3. The thyristor 3 is held in the open state by the current flowing through the LED of the optocoupler 32. The switching capacitor 30 is charged through the open thyristor 3 and the resistor 29.

As the mass of parts is reached

Yu

From the output of the sensor 17, a positive pulse arrives at the base of the transistor 28 of the control key 2k and closes it. Through the open transistor 28, the reverse voltage on the capacitor 30 is applied to the open thyristor 3 of the pulse signal 31 and closes it. This stops the supply of current to the input of the optocoupler 32, the thyristor of which engages and breaks diagonal bridge 36, turning off the power cylinder drive I. The rod 16 returns to the original 5 position. The possibility of a regulated feed of parts into the bowl-hopper by constantly maintaining the very maximum amplitude of oscillations at the same time makes it possible to increase the performance of the feeder as a whole.

20

25

thirty

35

40

Claims (3)

1. A vibrating bunker pit containing a bowl-bunker, bunker and vibro drive mounted on the bases on elastic elements, characterized in that, in order to improve the performance of the feeder with working with complex parts, the mechanism of batch extension and an inclined bottom is attached bent to the base and located under the exit hole of the pre-barrel, the outlet opening of the pre-kera is formed by two inclined walls installed with a gap one relative to the other, and offset relative to the axis of the bowl-bunker, etc. batch dispensing of the hoists is installed on inclined bottoms 2. Vibrating feeder according to claim. Characterized in that, the batch issuing parts is filled in the form of a power cylinder with in the bowl-bin 6 specified by the pusher attached to the rod value (rod 15 of the power cylinder I can also perform several reciprocating strokes) the protrusion 3 with 50 oscillating with the maximum amplitude power cylinder. 3. Vibrating feeder in PP 1 and 2, characterized in that it is equipped with sensors of amplitude of oscillations of the bowl-bin and the control mechanism of the power cylinder, connected by means of an electric circuit falls into zone B of sensor 17 triggering. The first one arrives at This, from the output of the sensor 17, a positive pulse arriving at the base of the transistor 28 of the control key 2k, opens it. Through the open transistor 28, the reverse voltage across the capacitor 30 is applied to the open thyristor 3 of the pulse amplifier 31 and closes it. This stops the supply of current to the input of the optocoupler 32, whose thyristor closes and breaks the diagonal of the bridge 36, turning off the actuator of the power cylinder I. The rod 16 returns to its original position. The possibility of adjustable feeding of parts into the bowl-bin and thus maintaining the maximum amplitude of oscillations at all times improves the performance of the feeder as a whole. 0 five 0 five 0 Invention Formula 1. A vibrating bunker feeder containing a bin-bin, a pre-bin and a vibrodrive mounted on a base on elastic elements, in order to increase the feeder performance when working with complex shaped parts, it is equipped with a batch part dispensing mechanism and an inclined bottom attached to the base and located under the outlet of the pre-bunker, while the outlet of the pre-bunker is formed by two inclined walls installed with a gap one relative to the other, and is offset relative to axis of the hopper bowl with the dispensing mechanism of the batch of parts mounted on the inclined bottom. 2. The vibrating feeder according to claim t, characterized in that the mechanism of portion dispensing parts is made in the form of a power cylinder with pusher attached to the stem pusher attached to the stem power cylinder. 3. Vibrating feeder on PP. 1 and 2, characterized in that it is equipped with sensors for the amplitude of oscillations of the bowl-bin and the control mechanism of the ram connected by means of an electrical circuit. B gff xoaffutoaoe G 9newa9 pannapp -dbu-dutsfi udQHni / nn ogodaipe gogndu B fuH + IDI h 3 t. SCHI Illl II mDtUniVBOH I II 6t & P 92 si Li .J And + 2 gp & No. W J FIG. five