SU1429145A1 - Device for registering moving articles - Google Patents

Abstract

The invention relates to the field of automation and computer technology and can be used to account for the number of movable products in transport sections in general and other types of industry, in particular in the sugar industry for

Description

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accounting for bags of sugar transported from the packaging department to the finished goods warehouse. The aim of the invention I is to improve the accuracy of the counting: device. The device for counting movable products contains the first and second sensors 1 and 2, the displacement transducer to frequency 3, the first element AND 4, the first element NOT 5, the first pulse distributor 6, the first block 7 of switches, the second and fourth elements AND 8, 9. and 10 first element OR 11, delay element 12, second element NOT 13, first counter 14, fifth element AND 15, first waiting multivibrator 16, second counter 17, sixth, seventh and eighth elements And 18, 19 and 20, the third element is NOT 21, the second element is OR 22, the registration unit is 23, the ninth element is AND 24, and Werth

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The invention relates to automation and computer technology and can be used to account for the number of goods transported through transport sections in the food and other industries, particularly in the sugar industry, to account for bags of sugar transported from the packaging compartment to the finished goods warehouse.

The purpose of the invention is to increase the accuracy of the device count.

FIG. 1 shows a functional diagram of the device; in fig. 2 — receiving and feeding conveyors, sensors, and a displacement transducer to frequency.

The device contains the receiving first sensor 1, the second sensor 2, the transducer 3 moving to frequency, the first element AND 4, the first element NOT 5, the first distributor 6 pulses, the first block 7 switches, the second 8, the third 9 and the fourth 10 elements And, the first element OR 11, delay element 12, second element NOT 13, first counter 14, five elements AND 15, first waiting multivibrator 16, second counter 17, sixth 18, seventh 19 and eighth 20 elements

the element NOT 25, the third element OR 26, the second pulse distributor 27, the second switch block 28, the trigger 29, the tenth element AND 30, the second waiting multivibrator 31, the third counter -32, the third block 33 switches, the fifth element HE 34 and the executive element 35, Sensors 1 and 2 are located above the receiving and feeding conveyors, respectively. In the case of passing more unlabelled products than allowed, the feeding conveyor automatically stops and after a pause, the duration of which is set by the third counter 32, is automatically turned on, thereby forming a gap between the products, which can be oriented relative to sensors 1 and 2 . 2 Il.

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) And, the third element is NOT 21, the second element is OR 22, the registration unit 23, the ninth element AND 24, the fourth element NOT 25, the third element ШШ 26, the second pulse distributor 27, the second block 28 of switches, trigger 29, ten of the AND element 30, the second standby multivibrator 31, the third counter 32, the third switch unit 33, the fifth element NO 34 and the actuator 35. Sensors 1 and 2 are located above the first 36 and second 37 conveyors, respectively. Before the device starts operation, the pulse distributors, counters and the registration unit are zeroed (zeroing circuits are not shown).

The device works as follows. °

At the moment when the leading edge of the bag approaches the counting zone, the first sensor 1 generates a resolution signal, which is fed to the input of the first element AND 4. At its other input, when receiving receiving conveyor 36, a sequence of pulses is received from the converter 3, moving to frequency, the pulses are outputting the first element And 4 comes only in the period of the bag in the zone

accounts. From the output of the first element And 4 pulses arrive at the first input of the first distributor 6 pulses, the outputs of which through the first first block of 7 switches are connected to the inputs of the second 8, third 9 and fourth 10 elements I. First; the second distributor 6 pulses and elements And 8-10 form the recognition of one, two and three bags. Standard bags are used to pack the sugar sand. The number of pulses per bag varies depending on the location of the bag on the conveyor. The bag can be located across the conveyor (bag axis, perpendicular to the conveyor axis) 5 in this case the number of pulses per bag is minimal and equal to pulses, at an angle to the conveyor axis (bag diagonal is parallel to the conveyor axis), in this case the number of pulses is maximum and equal N. Thus, if there is a single bag on the conveyor, its length is from n to N pulses, regardless of its orientation on the conveyor. The second element And 8 is tuned to a single bag, its inputs are connected through the first block 7 of the controllers to the codes of the distributor 6 pulses of the corresponding (n-1) th pulse. Since the bag has a minimum length, all single items on a conveyor belt with a length of less (p-1) are not counted. The third element And 9 is configured for two bags without a gap, its inputs are connected through the switch block 7 to the outputs of the distributor 6 pulses of the corresponding (N + 1) th pulse. The outputs of the elements And 8-10 are connected to the input of the first element OR 11, the output of which is connected to the input of the first counter 14, which stores one pulse in the case of a single bag, two bags without a gap, and three pulses without a gap through the three bags . The first 14 and second 17 counters, the second 13 and third 21 elements NOT, the fifth 15, the sixth 18, the seventh 19 and the eighth 20 elements AND, the second element OR 22, the first waiting multivibrator 16 and the first delay element 12 together form a pulse-number generator. The master is the first counter 14.

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The element 15 controls the operation of the standby multivibrator 16, the pulses from the output of which are fed to the input of the second counter 17 and the registration unit 23. If there is a single bag, then (n - 1) the impulse is exhausted by the second element And 8 and is remembered by the counter 14. At its first exit

Q; set the signal corresponding to the log. Oh, and on the second - the corresponding log. 1. Since the first output of the first counter 14 signal log. Oh, then on

On the inlet of the p element 15, a log is established. 1. After passing a single bag, a log is set at the output of the first element NOT 5. 1, which, arriving at the second input of the first distributor of 6 pulses, sets it to O and simultaneously enters the input of the fifth element 15, the log is set at all three inputs. 1. From the output element And 15 signal log. 1 is fed to the input of the waiting multivibrator 16 and starts it. The first impulse produced by it goes to the registration unit 23 and to the input of the counter 17, at the first output of which a log is set. 1. At the output of the sixth element And 18 set log. 1, which, after passing through the second element OR 22, is inverted by the third element HE 21, and a log is set at the input of the fifth element AND 15. Oh, the first standby multivibrator 16 is turned off. With the element 12 of the delay signal is received log. 1, which resets the counters 14 and 17 to the zero state. One pulse arrives at the registration unit 23, thus the passage of one bag is fixed. In the case of the passage of two bags without a gap, the counter 14 receives two pulses and a log is set at its third output. one.

At the same time (n - 1) the impulse is allocated by the second element I 8, and (N + 1) the impulse is the third element I 9. After the break, the value of two bags without a gap at the output of the first element NO 5 is set to a log, 1, which goes to the second entrance

 the distributor 6 pulses and sets it to O, and, arriving at the second input of the fifth element AND 15, the output of which is set

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5log 1, starts the first waiting 1 1U: Litivibrator 16. After out produces r two pulses, a log, .1, is set to the height of the seventh element And 19, which, through the second element OR 22, goes to the third element HE 21, where the inversion is set and the log is set at the input of the fifth element 115. A. Accordingly, a log is also set at the output. O and the first standby multivibrator 16 is turned off. At the 6jioK 23 registration, two pulses arrive and the passage of two Sacks is detected. In the case of the passage of three bags without a gap, the device works similarly, only the third pulse arriving at the input of the counter, 4 1A, is the fourth element || M and 10.

The bag flow is formed in the following manner.

I The second sensor 2 is installed on the feeding conveyor 37. At the moment when the leading edge of the bag approaches the zone of the sensor 2, it generates a resolution signal that goes to the input of the ninth element I 24, to another input of which, with the conveyor 36 running, a pulse sequence from the 3 displacement transducer into the frequency, and the pulses at the output of the ninth element AND 24 arrive only at the moment of finding the bag in the zone of the sensor 2. From the output of the element 24 and they arrive at the first input of the second distributor 27 pulses. Since the speed of the feeding conveyor 37 is less than the speed of the receiving conveyor 36, and the transducer 3 moving to frequency is installed on the receiving conveyor 36, the maximum and minimum number of pulses per one bag (depending on its location on the conveyor) will be higher. Let K - pulses correspond to the minimum bag length. If the system is configured to allow three bags to pass without discharging, then the outputs of the second distributor 27 pulses of 3, 5 and K-pulses, respectively, through the switch block 28 are connected to the second trigger input 29. In the case of three bags passing without breaking the log, 1 enters the second input of the trigger 29 and sets it to the (forward) first

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exit log. 1, which enters the input of the tenth element I 30, and the actuating element 35, which includes the feeding conveyor 37, as the receiving conveyor 36 continues to operate, a gap is formed between the bags.

Feeder stopping time

Q conveyor 37 is set by a time relay consisting of the elements NOT 34, AND 30, the second multivibra-waiting device 31, the third counter 32 and the third block 33. of the switches. Overhead

15 time depends on which output of the third counter 32 through the switch block 33 connects the inputs of the fifth element NOT 34 and the third element OR 26. At the initial position, the input of the NE 34 element is fed to the input log. O, which is inverted, and the input of the fifth element

And 30 enters the log. 1, a log is also set at the output. one,

25 which starts the standby multivibrator 31, from the output of which the pulses arrive at the input of the third counter 32. The frequency of the pulses is about 0.5 Hz. Since the stop time

30 of the feeding conveyor 37 is set to 2 seconds, a fourth output of the counter, 32, (the log. 1 is set on it after the fourth pulse is received) through the switch block 33 and the fifth element 34 is NOT 34 to the input

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the input of the second distributor is 27 pulses and resets it to

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element And 30 enters the log. Oh, and the standby multivibrator 31 is turned off.

In addition, the log. 1 enters through the third element OR 26 to the second

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a log is set at the zero output of the pulse distributor 27. 1, which, arriving at the first input of the trigger 29, resets it, while a log is set at its first output. O, the actuator 35 includes a feed conveyor 37, a log is set at the second (inverse) output. 1, which resets to counter 32 and the circuit returns to its original state. Thus, in the case of passing without breaking more bags than allowed, the supply conveyor automatically stops and after a pause, the duration of which is specified by the third counter 32, automatically turns on, thereby forming a gap between the bags. The system uses optical sensors operating in the infra red range, it is possible to use isotope and ultrasonic sensors. Integral elements can be used as base elements, which ensures high reliability of T1 low power consumption.

Claims (1)

Claims of the Invention A device for tracking movable products, comprising sensors, a converter for moving to frequency, first and second elements AND, first, second, third and fourth elements NOT, first and second. the second counters, the first element OR, the trigger, the actuating element, the registration unit, the output of the first sensor is connected to the input of the first element NOT and the first input of the first element AND whose second input is connected to the output of the displacement transducer to frequency, the output of the second sensor is connected to the input of the fourth element NOT, the first output of the trigger is connected to the input of the actuator, which is distinguished by the fact that, in order to increase the counting accuracy, the elements AND, the fifth element NOT, the distributors, pulses, switch block, the second and third elements OR, the third counter, the waiting multivibrators and delay elements, the output of the first element I are connected to the first input of the first pulse distributor, the outputs of which are connected to the corresponding inputs of the first switch block, the first, second and third outputs of which are connected respectively to the inputs of the second, the third and fourth elements AND, the outputs of which are connected through the first element OR to the first input of the first counter, the output of the first element is NOT connected to the second input of the first distributor by it pulses, the first input of the n ele five 0 And through a delay element to the first input of the second counter and to the second input of the first counter, the first output of which is NOT connected via the second element to the second input of the fifth And element, the output of which is connected to the registration unit and the second input of the second through the first waiting multivibrator counters, the first, second and third outputs of which are connected to the first inputs of the sixth, seventh and eighth elements And, respectively, the second inputs of which are connected respectively to the second third and fourth outputs of the first counter a, the outputs of the sixth, seventh and eighth elements AND are connected via serially connected second element OR and the third element NOT to the third input of the fifth element AND, the outputs of the displacement transducer to frequency and the second sensor are connected respectively to the first and second inputs 9 that element AND whose output is connected to the first input of the second pulse distributor, the output of the fourth element is NOT connected to the first input of the third OR element, the output of which is connected to the second input of the second pulse distributor, The first output of which is connected to the first input of the trigger, the second input of which is connected to the output of the second switch block, the inputs of which are connected to the corresponding outputs of the second pulse distributor, starting from the second, the first output of the trigger is connected to the first input of the tenth element I, which through the second waiting multivibrator connected to the first input of the third counter ,. the second input of which is connected to the second output of the trigger, the outputs of the third counter through the third block of switches. connected to the second input of the rpeTberof of the OR element and, through the fifth element, NOT to the second input of the tenth element 0. -. 0 five 0 five ig.2 J7