SU406212A1 - DEVICE FOR ACCOUNTING OF PIECE PRODUCTS - Google Patents

Description

The invention relates to the electronics industry and can be used in automation and mechanics in the development of automated production control systems. A device for counting piecework containing several sensors connected to the corresponding meters is known. However, with simultaneous production on many walls of the same type, the use of a known device is economically unprofitable due to the high cost of electronic totalizers. In known devices, an electronic counter can be connected to only one sensor, due to the fact that information about the right products coming from the sensors is randomly distributed in time. The aim of the invention is to improve the reliability of the device. This goal is achieved by the fact that the proposed AND device includes parallel AND and OR circuits. The output of the “OR” circuit through the differentiating capacitance and the isolating diodes is connected to the input of the electronic counter. The output of the circuit "And through the coupling capacitor is connected to the primary winding of the transformer, the secondary winding of which is connected to the input of the amplifier. The output of the amplifier is through a differentiating circuit. And the isolating diode is connected to the input of an electronic counter. The drawing is a diagram of the device. IT contains the circuit "OR 1 consisting of diodes and resistance, circuit" AND 2, consisting of diodes and resistance, the first capacitor 3, diodes 4-6, the second capacitor 7, transformer format (p 8, amplifier 9, made on transistors 10 and 11 with the direct connection between the stages, the resistor 12 in the bias supply circuit to the base of the transistor 10, the load resistor 13 in the collector circuit of transistor 10, the load resistor 14 in the collector circuit of the transistor ill, the differentiation circuit 15 from the capacitor 16 and resistor 17 , pulse sensors 18, 19 and electronic counter 20. Ustr The operation works as follows: a) voltage pulses and Us., coming from sensors 18 and 19, do not coincide in time with one another. In this case, the pulses t / Bxi and in2, pass through the circuit I, (the first capacitor 3, in the form of short opposite-polarity pulses, arrive at diodes 4 and 5. The pulses of positive polarity correspond in time to the falling edges of the pulses coming from the sensors 18 and 19, is received as a counter that triggers the input 20. The negative polarity pulses are closed through the diode 4 to the ground.

as the pulses UBKI and f / Bx2, coming from sensors 18 and 19, in this case do not coincide in time with one another, at the output of circuit 2, and consequently, at subsequent cascades, up to diode 6, there are no pulses in danO | M case no. Consequently, two and ml hive a, and

b) The impulses of voltage 6аi and (7вх2), coming from the information sensors / 5 and 19, are completely combined (In time, one with the other.

In this case, the circuit / these pulses pass as a one-pulse, which is then differentiated by a capacitor 5 and in the form of short voltage and-current impulses fed to diodes 4 and 5, and then in the form of a short triggering pulse / positive polarity in time with the falling edge of the pulses coming from sensors 18 and 19, go through diode 5 to the input of counter 20. At the same time, under the influence of combined pulses {7in1 and t / Bx2, coming from sensors 18 and 19, the output of circuit 2 also a voltage pulse appears It passes through the coupling capacitor 7, and the primary winding of the transformer 8. Under the influence of this pulse, a voltage pulse also appears in the secondary winding, shifted relative to the “an / p of the primary winding” 180 °. Further, this positive voltage pulse arrives at the input of amplifier 9. As a result, at the output of the amplifier, at the collector of the transistor //, the voltage drops to zero time, equal to the duration of the incoming pulse. As a result, two short opposite-polarity pulses pass through the capacitor 16, corresponding in time to the front and rear edges of the positive pulse that has arrived at the input of the amplifier. In this case, a positive and, therefore, a triggering pulse, which passes through diode 6 and enters the input of counter 20, corresponds in time to the leading edge of the Impulses coming from the sensors. So in this

In the event that the counter input also passes two trigger pulses.

c) Voltage impulses f / sx i and t / Bx2, coming from information sensors V5 and 19,

partially combined with one another in time. In this case: In the case of these pulses, the output of the circuit / is merged into one pulse, which, having passed through capacitor 3,; diodes 4 and 5 arrive in the form of short polar voltage pulses. The diodes 4 and 5 are received as a result. a positive polarity pulse corresponding in time to the back front of the combined pulses f / cx 1 and f / oxz-. At this,

In the case of circuit 2, an impulse appears that is equal to the duration of the pulse f / 3xi and i / Bx 1-pulse combination; as a result, a voltage pulse also appears on the secondary winding of the transformer 8, under the influence of

KOTOiporo from the output of amplifier 9 to the input of counter 20 through capacitor 3 and diode 6 receives a short trigger pulse of positive polarity, aligned in time with the leading edge of the pulse,

at the output of the secondary winding of the transformer 5. Thus, in this case, two trigger pulses come to the input of the counter 20.

Subject invention

A device for counting piece products containing pulse sensors and an electronic counter, characterized in that, in order to increase the reliability of operation of the device, an OR, A, differentiating circuit, diodes, capacitors, amplifier and transformer are introduced into it; moreover, the pulse sensors are connected to the inputs in parallel

included AND and OR circuits, the output of which is connected through the first diode to an electronic counter connected through the second diode to the output of the amplifier, whose input is connected to the secondary winding of the transformer, the primary winding of which is connected via the second capacitor to the output of the circuit I.