SU1550554A1 - Device for counting objects transferred by conveyer - Google Patents

Abstract

The invention relates to a computing and information technology and is intended to count objects moved by a conveyor. The purpose of the invention is to expand the field of application of the device by realizing the possibility of separately counting metallic and non-metallic objects moving in a continuous flow, while simultaneously measuring their length. The device for counting objects moved by the conveyor contains a light source 1, a photodetector 2, the first, second and third pulse shapers 3, 5 and 8, a sensor 7, a single vibrator 4, a pulse generator 6, element 9, the first, second and third counters 10 , 11 and 12, the recording unit 13. The application of the invention allows the counting of various objects moving in a continuous flow. 4 il.

Description

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The invention relates to a computing and information technology and is intended to count objects moved by a conveyor.

The purpose of the invention is to expand the field of application of the device by realizing the possibility of separately counting metallic and non-metallic objects moving in a continuous flow, while simultaneously measuring their length.

FIG. 1 and 2 shows the proposed device, a general view; in fig. 3 is a block diagram of it; in FIG. 4 - time diagrams of his work.

The device for counting objects moved by the conveyor contains a light source 1, a Photodetector 2, a first pulse shaper 3, a single vibrator 4, a second pulse shaper 5, a pulse generator 6, a sensor 7 for detecting the presence of metal, a third pulse shaper 8, element 9, the first 10, a second 11 and a third 12 counters, a registration unit 13, a presser bar 14 with a hole 15, an A-shaped plate 16, a conveyor 17 with a conveyor belt 18 that moves objects 19.

The device works as follows.

A clamping bar 14 with a hole J5 in which the radiation source 1 is installed is located on one side of the conveyor J7, and the L-shaped plate 16 is on the other. Opposite the light source 1, on the other side of the conveyor 17, a photodetector 2 and a sensor 7, determining metal, are installed. Being moved by the conveyor belt 18, the object 19 is oriented by the clamping plate 14 on the L-shaped plate 16 so that one side of it, crawls along it, lifts up and then, after passing the top, lowers. When the object 19 passes the top of the L-shaped plate 16, the optical communication channel between the light source 1 and the photoreceiver 2 is cut off. The plate 16 creates a gap between the objects 19, which move in a continuous flow. Before starting, the first 10, second 11 and third 12 counters are set to the zero state. In the absence of object 19 in the zone of the optical communication channel between the photodetector 2 and the radiation source 1, from the output of the photoreceiver 2, lower

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the signal is of a constant magnitude. As the objects 19 move at a low speed, when the object 19 enters the zone (or exit) of the optical communication link, the signal at the output of the photoreceiver 2 begins to decrease (or increase) linearly (Fig. 4, a). the signal is applied to the inputs of the first 3 and second 5 pulse shapers. The response thresholds of the first and second formers 3 and 5 are selected- H-, I in the area of the decrease (increase) in the signal from the photodetector 2. Thus, when an object enters the zone of the optical communication channel, the former 3 (Fig. 4, b) fa switches first the second is the shaper 5 (Fig. 4, d), and when the item leaves the zone, the shaper 5 is first zeroed, and the second is shaper 2. From the second output of the shaper 3, the signal goes to the first input of the recording unit 13 and prohibits its operation for the duration an item 19 between the light source 1 and the photodetector 2, and from the first output, the signal is fed to the launch input of the one-shot 4. The latter forms a zeroing pulse (Fig. 4c), which at the first output goes to the first zeroing input of the first counter 10, and from the second output is fed to the second input of the element 9. Signal From the first output of the second shaper 5, it enters the trigger input of the generator 6 pulses, the output of which receives pulses (Fig. 4e) at the second input of the counter 10 until the object 19 moves in the zone of the optical communication channel between J light source and photoreceiver 2. TDC manner, the output of the first counter 10 is generated code corresponding to the length of the object. This code from the output of the counter 0 is fed to the input unit 13 of the registration. From the second output of the imaging unit 5, the signal is fed to the input of the second counter 11, the output of which forms a code corresponding to the sequence number of the object 19, which passes between the light source 1 and the photodetector 2.

With the passage of a metal object simultaneously with the signal of the photodetector 2, a signal is generated from the sensor 7, from the output of which

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Claims (1)

Claim A device for counting objects transported by a conveyor, containing a light source that is optically coupled to a photodetector, the output of which is connected to the input of the first pulse shaper, the first output of which is connected to the input of a single vibrator, the first output of which is connected to the first input of the first counter, element I, second and third counters, excellent ay. Furthermore, in order to expand the scope of the device by making it possible to separately count metallic and nonmetallic objects moving in a continuous flow, while measuring their length, the second and third shapers, pulses, and a pulse generator are introduced into it, a sensor and a recording unit, the output of the photodetector is connected to the input of the second pulse shaper, the first output of which is connected through the pulse generator to the second input of the first counter, the second output of the second shaper the pulse is connected to the input of the second counter, the sensor through the third pulse shaper. connected to the first input of the element And, the second input of which is connected to the second output of the one-shot, and the output of the element And is connected to the input of the third 20 counter, the second output of the first pulse shaper is connected to the first input of the block registration, the second, third and fourth inputs of which are connected to the outputs of the first, second and 25 third counters, on one side of the conveyor above the conveyor belt and parallel to it at the level of objects installed a clamping bar made in the form of a sheet with right and left ends bent 30 outward of the conveyor, an A-shaped plate with a vertex located above the conveyor belt, in the clamping bar below 25 the upper plane of the object moved by the conveyor, and above the vertex Λ -shaped plate and opposite it, a hole is made in which a light source is installed, on the other side of the conveyor, a light detector / sensor and a sensor are fixed on it. FIG. 1 1 550554 I ...............- I ίπππππππ | 1 1 1 g figl