SU1247667A1 - Weighing device for determining quantity of items having equal mass - Google Patents

Abstract

The invention relates to weighing technology, and allows you to increase the speed of the device, which consists of a load-receiving platform 1, a mass converter 2 into a number of pulses, control circuit 3, a batch of mass meter 4, an indicator 5 of cyclical meters 6 and 13, a switch 7 object, encoder 8, indicator 9 mass of one object, schemes 10 and 14 coincidence, counter 11 of the number of objects in a batch, indicator 12 of the number of objects in a batch, schemes OR 15 and trigger 16. In the reduction of new elements and the formation of new connections between the elements of the device allows us to increase the speed of the device’s counting circuit, which is limited only by the response time of the elements included in its composition, which allows us to increase the performance of the weighing device. 1 il. (L K9 yd Qb Q

Description

one

The invention relates to weighing equipment, namely, devices for determining the number of objects of equal weight in a batch.

The purpose of the invention is to increase the speed.

The drawing shows a structural block diagram of the device.

The device with, &to; from the load-receiving platform 1, the mass converter 2 into the number of pulses, control circuit 3, counter 4 mass of the batch of objects, indicator 5 masss of the batch of objects, cyclic counter 6, switch 7 sets the mass of one object, encoder.8 , the indicator 9 of the mass of one object, the coincidence circuit 10, the counter 11 of the number of objects in a batch, the indicator 12 of the number of objects in a batch, the additional cyclic counter 13, the additional coincidence circuit 14, the two-input circuit SHIII 15 and the trigger 16; the matching circuit 14 is connected to the first input of the OR circuit 15 and the first input of the trigger 16, and the output of the circuit 10 of the coincidence circuit is connected to the second input of the OR circuit 15 and to the second input of the trigger 16, whose outputs are connected to the reset buses at zero cyclic counters 6 and 13, and the output of the circuit OR 15 is connected to the input of the counter 11 of the number of objects. Cyclic counters 6 and 13, the matching schemes 10 and 14, the OR circuit 15 and the trigger 16 form the counting circuit 17.

Weight device operates as follows.

Using switch 7, a number is set corresponding to the mass of one item, the counters 6 and 13 are in the zero state. The trigger state 16 is arbitrary. A batch of items, the number of which must be determined, shall be placed on the load-receiving platform.1. The force created by the mass of the batch of objects is perceived by the converter 2, which converts its proportional number of pulses to the control circuit 3, from which the pulses arrive at the counter 4 of the mass of the batch of objects and at the counting inputs of cyclic counters 6 and 13 of the counting circuit 17.

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Counters 6 and 13, the capacitances of which are the same, count the pulses alternately. For example, if, before starting the measurement, the trigger 16 is 5 seconds in the single state, then with its direct output it locks the counter 13 (along the reset circuit to zero), and the inverse output removes the interlock (also along the reset circuit to zero) from the counter 6, which begins to count. When the codes of the counter 6 and the encoder 8 coincide, the coincidence circuit 10 generates a pulse, which through the OR 15 circuit records to the counter 11

15 of the number of items and simultaneously enters the first installation input of the trigger 16, the trigger 16 goes into the opposite state (zero) and. its inverse output

20 zeroes counter 6 and direct output (removes the lock from counter 13, which 11 starts to count pulses. Now the comparison operation is performed by circuit 14, which, when coincident

25 codes generates a pulse and, through the OR 15 circuit, writes it into the counter 11 of the number of objects. At the same time, this emulsion enters the second setup input of the trigger

30 16, setting it to initial

initial (single) state, etc. Then, the operation of the counting circuit 17 is repeated. The counter 11 of the number of items continues to count pulses.

35 as long as the mass measurement cycle of the batch is not completed. Indication of the values of the mass of batches of objects, the mass of one object and the number of objects in the batch is carried out with the help of indicators 5, 9 and 12, respectively.

Thus, the speed of the counting circuit of the proposed device is limited only by the time it takes for the 5 elements to be included in its composition, which makes it possible to increase the performance of the weighing device to determine the number of objects of equal weight.

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Claims (1)

Invention Formula - A weight device for determining the number of objects equal to the mass, containing a weighing platform with a mass converter in the number of pulses, the input and output of which are connected to the control circuit the first output of which is connected via a mass meter of a batch of objects to the mass indicator of a batch of objects, and the second output is connected to a cyclic counter, the outputs of which are connected to one input of the coincidence circuit, to the other inputs of which are connected the outputs of the encoder of the mass target switch one item, and a counter for the number of items in a batch with an indicator, characterized in that, in order to improve speed, an additional loop counter, the capacity of which orogo equal capacitance cyclic C4et0 five The input connected to the second output of the control circuit, an additional matching circuit, whose inputs are connected respectively to the outputs of the encoder and the additional cyclic counter, the two-input OR circuit and the trigger, the first inputs of which are connected to the output of the matching circuit, and the second inputs to the output of the additional a matching circuit, the output of the two-input circuit OR is connected to the input of the counter of the number of objects., the direct output is triggered, 5 is connected to the reset input of the additional cyclic counter, and the inverted output is connected to house cyclic counter reset.