SU723388A1 - Weigh-measuring apparatus for loads suspended in conveyer grips - Google Patents

Description

Inequity regarding weighing and measuring equipment. Weight measuring devices are known that contain strain gauges, a seeding unit, a reversible control unit, a counter and a digital-analog converter (1. These devices make digital compensation for tare weight, however, they have low reliability and quick action. The closest technical entity to the model is a weight measuring device containing a load platform with a weight-analog converter connected to the first input of the comparison element whose second input is connected via a key and a digital-to-analog converter The display and recording devices connected to the output of the comparator node via an analog-digital converter are not compatible with the output of the memory unit. However, the known device does not provide the required reliability and has an unsatisfactory speed.This is due to the fact that when cargo arrives at the load-bearing site from Several sources — the device e can compensate for the tare weights, i.e., under these conditions, is unreliable. This disadvantage is especially pronounced, for example, in the manufacture of glass fiber, where These are additional overhead costs associated with manual marking of reels with used fiberglass. and their subsequent formation at the weighing site, as well as the impossibility of automating technological, fiberglass production processes. The purpose of the invention is to increase reliability and speed. The goal is achieved by introducing a load presence sensor on the conveyor hook, a conveyor hook pass sensor, a manipulator, a switch, a trigger and a reversing counter, with the load presence sensor on the conveyor hook being connected to the first trigger input, to the second input and input the memory unit is connected to the output of the reversible counter, and the trigger output is connected to the first input of the switch, to the second input of which, to the control input of the key and the input of the manipulator, the sensor of the passage of the grippers is connected to nveyera, wherein the switch output is connected to the subtrahend: / down counter input, 1st-sum.1iruyu11i input coupled to an output of the memory unit.

The drawing shows a structural block diagram of the device. The presented variant is intended for weighing the dog.

The device contains a conveyor 1 with grippers 2 rigidly attached to it, which the operator hangs bins 3 with fiberglass, a manipulator 4, interacts with a converter L An analogue weight connected through element 6 of comparison with analog-digital converter 7 connected to node 8 display and registration and control input of the computational control unit (UHF) 9. Sensor 10 of the presence of a reel 2 with fiberglass on the grip 2 is connected via control trigger 11 to a commutator 12 connected to a reversible counter 13 connected to block 1 4 memory, which is connected to the key 16 via the digital-to-analog converter 15, turned on by the second sensor 17 passing the grips-2.

The device works as follows.

The operator, after running fiberglass on 3 of the glass-melting vessel (not shown in the drawing), hangs this reel 3 on the pick-up conveyor 1 passing by his work station. At the same time, the sensor 10, made for example in the form of a limit switch, works particular case under the influence of the weight of the reel) and translates the control trigger 11 into a single state. In turn, the signal from the output of the control trigger 11, acting on the switch 12, made, for example, in the form of a block of elements of coincidence, realizes the connection of the sensors 17 of the grippers to the reversible counter 13. In the reversible counter 13 in the initial state, in binary code the number code is written corresponding to the number of the workplace on which the reel with fiberglass is currently built up and is suspended on the grip 2. The number of each workplace is chosen based on the distance along the length of the conveyor between the working time and Hanging and fixed length between adjacent grippers 2. In this case, gripper 2, on which bobbin 3 with fiberglass is installed, fixed by sensor 10, will pass by sensor 17 through the number of grips corresponding to the selected work station number, All signals in the form of single pulses (in In the particular case of the sensor, the passage of the grips can be performed on the magnetic-induction principle), corresponding in total to the number of the workplace, are fed to the subtracting input of the reversible counter 13. The output of the gripper 2, to which the rum is installed a reel 3 with fiberglass, by the sensor 17 the reversible counter 13 is zeroed, the signal from its output acts on the control trigger 11, bringing it to the zero state and thus breaking through the switch 12, the connection between the counter 13 and the sensor 17, as well as - to the memory block 14. The binary number corresponding to the number of the workplace is rewritten by the summing Bxoziy of the counter 13. In addition, the signal from the output of the counter 13 at the moment of its zeroing, affects the memory block, reads the code from it corresponding weight of an empty reel at the workplace in question. This code of the number is converted in the digital-to-analog converter 15 to the equivalent voltage, which then through the open signal from the sensor 17, the key 15 is fed to subtracting the input of the comparison element 6. The summing input of the comparison element 6 receives a signal from the weight-analog converter 5, corresponding to the total weight of the reel 3 with fiberglass installed by the manipulator 4 to the load-receiving area as it passes the weighing section, according to signals from the sensor 17.

The comparison element 6 subtracts the tare weight (reels-) from the total weight of the reel 3 with fiberglass and after converting the signal from the output of the comparison element 6 to the analog-digital converter 7. The net weight of the fiberglass is digitally recorded by the node 8, and is also fed to the input UVM 9 to determine the fiberglass operating time at a given workplace for a certain time (s, day, etc.).

Similarly, the device operates in different workplaces with the only difference that they will have their respective elements: a reel presence sensor, a control trigger and a reversible counter. Despite the fact that the use of fiberglass is conducted simultaneously at workplaces (in parallel), the device operates (determines weight) at each moment when the gripper 2 passes by the sensor 17 in one place (sequentially).

 the invention

Weighing device for goods suspended in grippers

A junction box containing a load-receiving pad with a converter is connected to the input element of the reference element, the second and the course of which is connected to the output of the memory unit via a key and digital-analog converter, and indicating and recording devices connected to the reference of the comparison node through an analog-digital converter , characterized in that in order to increase reliability and speed, a load presence sensor is introduced on the conveyor hook, a conveyor hook passage sensor, a manipulator, a KOMNp / tator, a trigger and eversivny counter, wherein the presence of the load sensor output to capture the conveyor connected to the first input flip-flop.

to STOpO ry input of which and V. OTs

of the PA / ggi unit is connected to the POWER of the reversible counter, and the trigger output is connected to the first input of the KOMv -TaTOpc to the second; This is a comz-tat. connected to the subtraction; c11; cr at the input of the reversible counter, the summing input of which is connected to the output of the memory block.

Sources of information taken into account in the examination

1. USSR author's certificate 250486, cl. G 01 G 19/34, 1967, 2, USSR Copyright Certificate

ft 474695, cl. G 01 G 23/16, 1973 (prototype),

Claims (1)

Claim A weighing device for goods suspended in the Xnzeyer grips containing a load receiving area with a weight-analog converter connected to the first input of the comparison element, the second input of which is connected via the key and digital-to-analog converter to the output of the memory unit, and indicating and recording devices connected to the output of the comparison unit through An analog-to-digital converter, characterized in that in order to increase reliability and speed, a load presence sensor is introduced into it on the conveyor gripper, a pass sensor the conveyor grips, manipulator, switch, trigger and reversible counter, and the output of the load sensor on the conveyor gripper is connected to the first input of the trigger, the second input of which and the input of the memory block is connected to the output of the reverse counter, and the trigger output is connected to the first input of the switch to the second input of which, the control? "the subject of the key input and the input of the manipulator is connected to the sensor for passing the conveyor grips, while the output of the switch is connected to the subtracting input of the reversible counter, the sum <q cerned connected to the output of the storage unit.