SU1442463A1 - Apparatus for counting packages - Google Patents

Abstract

The invention relates to devices for counting or recording the quantity of products to be packaged and is intended for use in mechanical engineering, metallurgy, textile, woodworking, and food industry, in particular for metering metal baskets with milk containers on automatic milk filling lines. The purpose of the invention is to increase reliability. The signal of the position converter 1 sets the counting trigger 9 to the initial state, the signal of the position converter 2 switches the counting trigger, which outputs the signal to the pulse counter 13, and the packing is counted. The transducer 3 of the position through the trigger 8 prohibits the counting of 13 pulses to the counter, if there is no packing in the counting zone. The device eliminates the possibility of skipping packaging in the case of non-simultaneity operation of transducers 1, 2 position. 2 Il. y (l

Description

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The invention relates to devices for counting or recording the quantity of products to be packaged, and is intended for use in mechanical engineering, metallurgy, textile, woodworking, and food industry enterprises, in particular, to account for metal baskets of milk containers on automatic milk filling lines.

The purpose of the invention is to increase reliability.

FIG. 1 shows a block diagram of the package counting device; in fig. 2 - device (sensor unit), general view.

The package counting device contains three transducers of 1-3 positions, two of which (1 and 2) are installed one after the other in the direction of travel of the packages, the outputs of each transducer are connected to the corresponding inputs of inverters 4-6. The output of the first inverter 4 through the pulse shaper 7 is connected to the inputs of the trigger 8 and the counting flip-flop 9. The output of the third inverter 5 is connected to the first input of the And 10 element, and the output of the second inverter 6 is connected to the inputs of the pulse shaper 11 and the 12 element. Delay output the latter is connected to the second input of the element I 10, and the output of the driver 11 pulses through the trigger 8 is connected to the third input of the element 10. The output of the element 10 through the counting trigger 9 is connected to the input of the counter 13 pulses.

Transducers 2 and 3 are located in one plane perpendicular to the direction of movement of the packages, and transducer 1 is positioned in a parallel plane.

The sensor unit is designed as a carrier frame with structural references to the conveyor 14, along which the packages 15 are moved.

The design provides for two upper sensors 16 and 17 and one lateral sensor 18 which are mounted on the frame with the possibility of installation in grooves during the adjustment process.

The sensors are levers that rotate at working angles up to 40 ° relative to the axes.

The portions of the arms of the sensors 16-18, which are in contact with the packages 15 moving along the conveyor 14, are recessed beyond the dimensions of the packages by an adjustable amount. Opposite parts of the levers of the sensors 16-18 are made in the form of flags.

The levers 19 return to their initial position until the catcher stops 19 by means of springs 20.

When the levers are rotated by moving packages at an angle of 40 °, the flags without making mechanical contact enter the slots of transducers 1-3 positions for sensors 16-18, respectively. Position transducers 1-3 translate information about the rotation of the lever corresponding to

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sensors in a discrete electrical signal, while reacting to the presence (absence) of a lever lever in the slot.

The device works as follows.

In the initial state, the output level of the transducers 1–3 is set to level “1, the output of the inverters 4-6 is set to level“ O. When the package 15 moves, on the conveyor 14, it deflects the lever of the position converter 1 with its front wall, at the output of which the level "O is formed", the level of "1 is set at the output of the inverter, and the pulse shaper 7 is started. There is an impulse that triggered the trigger 8 and the counting trigger 9, which sets the levels “1.

With further movement of the package 15, the lever of the transducer 1 position slides off its front wall and the output level of the transducer 1 position is set to the initial level "1. Moving forward with the front wall at the same time deflects the levers of transducers 2 and 3, at the output of which levels "O" appear and at the output of inverters 5 and 6, respectively, levels "1. When a scientific research institute emerges, the output of the inverter 6 of the level 1 starts the second shaper 11 of the pulses, producing a pulse that resets the trigger 8, the output of which is set to the level "O." This level arrives at the first input of the AND 10 element, prohibiting its triggering, thereby preventing the switching of the counting flip-flop 9, which in this case does not emit a signal to the counter 13 pulses. At the same time, the level “1 of the inverter 6 through the delay element 12 is fed to the third input of the element AND 10. At the same time, from the inverter 5, the level“ 1 goes to the second input of the element I 10, but since the first input of this element is the level “O at its output, the state does not change. Upon further movement of the package, the lever of the transducer 2 of the position slides off the front wall of the package 15 and at the output of the transducer 2 of the position the level "1." The lever of the 3 position transducer, which is located on the side wall of the package, remains deflected while the package 15 is in the counting zone.

Then, the pack 15, when moving already in the rear wall, deflects the lever of the position converter 1, the signal of which through the inverter 4 starts the pulse shaper 7, generates a pulse that confirms the level "1 at the output of the counting trigger 9 and switches the trigger 8, at the output of which the level is set" 1, which enters the first input of the element 10. After further movement of the package 15 by the rear wall, the transducer lever 2 is deflected, the signal from which, after inversion by inverter 5 (level "1) t to the second input of the element AND 10. At the same time, the level "1 is set at all three inputs of the element 10 and the element 10 is triggered, resulting in the flip-flop 9 switching and the level 0 appears at its output, resulting in a unit count of counter 13 pulses.

Further, if the previous and next packages 15 closely adjoin each other or if the gap between the packages 15 does not exceed a certain value, at which the lever of the 3 position transducer does not fall into the gap between the packages 15, then the device counts the packages 15 from their back walls similar to that described.

The proposed device is more

reliable in comparison with the known ones, since the counting of the package 15 is carried out by one transducer 1 position, and not simultaneously by two, as in the known device, which excludes the possibility of skipping the package 15 in case of non-simultaneous operation of the transducers 1 and 2 position, for example, for the curvature of packages.

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Claims (1)

Claims: Package counting device containing three position converters, two of which are installed one after the other in the course of the package movement, the AND element, a pulse counter connected to the output of the counting trigger, whose input is connected to the output of the AND element, characterized in that increase reliability, it is equipped with three inverters, two pulse shapers, a delay element and a trigger; the output of the first position transmitter is connected in series through the first inverter and pulse shaper to the trigger and counting trigger inputs, the output of the second position converter is sequentially connected via the second inverter and the pulse shaper to the trigger reset input, the output of the third position converter is connected in series via the third inverter to the first input of the element, the output of the second inverter is connected through a delay element the second input element And, the third input of which is connected to the trigger output, the second and third position transducers are located in the same plane, perpendicular to the movement of the packages, and the first position transducer is located in a parallel plane. fue. 2