SU1326535A1 - Device for measuring the radius of wound reel - Google Patents

Abstract

The invention relates to a measurement technique of the textile industry. The purpose of the invention is to increase accuracy by allowing the measurement to start from an arbitrary angular coordinate of the coil to be wound. At the outputs 14 and 16 of the block 15, the assignment of the beginning and end of the measurement is set to the numbers. Corresponding to the beginning and end of the counting, and ff (Lg and fZ tri 11 22 3

Description

the difference between the numbers of the end and the beginning of the count is equal to the number of marks on the rotor 7 of the pulse sensor 5 of the rotation frequency of the winding shaft (roll) 6, corresponding to the angle of one radian. During rotation of the follower 2 and winding 6 shafts, readout pulses 4 and 8 of the read heads are received: jCTBeHHO at the input of the element 10 and the counting input of the counter 11. Once the number of pulses received at the counter 11 is compared with the number at the output 14 unit 15, at the output of the comparison element 12 a pulse is generated, which is stored by the memory element 17. The pulse from the element 17 is fed to the input of the element And 10, and the pulses from the output of the head 4 are fed to the same

one

The invention relates to a measurement technique of the textile industry.

The purpose of the invention is to increase accuracy by allowing the measurement to start from an arbitrary angular coordinate of the coil being wound.

FIG. 1 is a block diagram of a radius meter in FIG. 2 shows the construction of a rotary pulse frequency sensor for a follower shaft; in fig. 3 shows the layout of the read heads; in fig. 4 is a sequence diagram of the operation of the rotor pulse frequency sensor for the tracking shaft.

In the proposed meter (Fig. 1), the rotor impulse sensor 1 of the rotational speed of the follower shaft (roller) 2 consists of the rotor 3 and the read head 4, and the rotor impulse sensor 5 of the frequency of rotation of the take-up shaft (winding roll) 6 consists of the rotor 7 of the read head . 8. The fabric 9 bends around the follower roller 2 and winds into a roll 6. The reading head 4 is connected to the first input of the element AND 10. The reading head 8 is connected to the counting input of the counter 11. The number of impulse labels on the rotor is 7 times the number 157 (50Tff) ( 314, 628, 1256, etc.) so that on an arc of one radian is located

the input of the counter 22. When the shafts are rotated at an angle of century. one radian the number in the counter 11 becomes equal to the number at the output 16 of the block 15. The comparison element 13 is triggered, which includes the memory element 18. Element 18 sets memory element 17 to zero, and element 10 stops passing pulses from head 4 output. Counter 22 stops receiving pulses from head 4 output. Counter 22 records the number of pulses corresponding to the length of fabric wound in a roll on an arc in one radian, which corresponds to the radius of the wound-roll. Through the key 20 information from the counter. 22 is rewritten to register 21 ..

3 3; P. f-ly, 4 il.

the number of labels in multiples of decimal numbers. Lu 25 (50, 100, 200, etc.). The capacity of the counter 11 corresponds to the number of impulse labels per revolution of the rotor 7.

Counter 11 with its multi-bit output is connected to the first inputs of the First 12 and second 13 comparison elements. To the second input of the document 12

the multi-digit output of reference 14 is connected to the block 15 for setting the beginning and end of the measurement, and the multi-output output 16 of the end is compared with the second input of the element 13.

measuring unit 15. The outputs of the comparison elements 12 and 13 are connected to the information inputs of the memory elements 17 and 18. The output of the first memory element 17 is connected to the second input of the AND element 10, and the output of the memory element 18 is connected on the one side to the erasable input of the memory element 17, and on the other through the delay element 19 - to the common (control) input of the multi-bit key 20, which by its outputs is connected in parallel to register 21, and by inputs to counter 22 of pulses, the counting input of which is connected with the output of element I 10.

The erasing input of the counter 22 is connected to the pulse output 23 of the counter 11. The pulse output 23 signals the filling of the capacity of the counter 11.

3

The erasing input of the memory element 18 is connected to the same output 23 of the counter 11. The register 21, the multi-bit key 20 and the delay element 19 constitute the display unit.

In order to increase the resolution of the radius meter, the reading head 4 of the sensor of rotational speed of the sitting shaft consists of K reading elements (heads). FIG. 2 shows an example for three reading elements 4-1, 4-2 and 4-3. The impulse marks on the rotor are

two states, each of which lasts f

13265354

to the counting input of counter 22, and the radius reading begins. When turning on the swiveling shaft at an angle of one

sec during the angle L for the period of the pulse following 2 i.e. the rotor 3 has one tag covering half the length of the rotor circumference. The read elements are shifted by one related number in the counter 11 becomes equal to the number at the output 16 of the count end of the block 15 and, accordingly, at the time of the comparison element 13, an impulse appears, which by means of the memory element 18 erases the signal. ti and, accordingly, at the second output of the element 10, the signal disappears and the counter 22 stops counting the pulses from the read head 4. At the moment, the counter 22 15 contains a number corresponding to the length of the fabric wound in a roll on an arc of one radian or same thing equal to ra wound rolls on. Simultaneously, the signal from the output of the ele

on the other side of the 27 / K angle (Fig. 3) 20, the memory 18 18 by means of the delay element 19 acts on the common input of the multi-bit controlled

 where K is the number of reading elements, while reading elements taking into account the angular shift can be separated by different periods of the angular

location of impulse labels. Angle- 25 filling additional counter

The va diagram (FIG. 4) shows the joint operation of the matching elements, the outputs of which are connected to the inputs of the element OR 24, the output of which in this case is the common output of the read head 4.

The meter works as follows.

All the counters and the register are zeroed before starting, and the numbers of the beginning and end of the count are set at the outputs 14 and 16 of the task block 15, and the difference between the number of the count end and the start of the count is equal to the number of marks on the rotor 7 corresponding to the angle of one radian. For example, if the number of marks on the rotor 7 is equal to 314, then the difference between the number of the end and the beginning of the reference is 50, and the specific numbers of the beginning and the end of the reference can be 45 by enabling the beginning, for example, 12 and 62, 68 and 118, etc. .

During the rotation of the follower and the winding shafts from the matching heads 4 and 8 to the first input of the element I 10 and to

measurements from an arbitrary angular coordinate of the coil to be rolled, it. Equipped with a unit for setting the beginning and end of the measurement, an additional element-input input for the counter 11, respectively, 50 JOM memories, comparison elements and

but there are impulses. As soon as the number of pulses arriving at counter 11f is compared with the number at the outgoing counter pulse whose capacity is equal to the number of marks placed along the rotor circumference of the rotor pulse sensor hour de 14 of the start of counting of block 15, the rotating shaft of the take-up shaft is formed at the output of the comparison element 12 , when the pulse arriving at the input element is the output of the rotor pulse date

 17 of the memory and then to the second input of the rotational speed of the winding element I 10. The pulses from the junction connected to the counting input before the common head 4 begin to receive an additional pulse counter, i.e.

the counting input of the counter is a count of the radius. When the swabbing shaft is at an angle, the number in the counter 11 becomes equal to the number at the output 16 of the counting end of the block 15 and, accordingly, the output of the comparison element 13 appears a pulse, which by means of the memory element 18 erases the signal. and, accordingly, at the second output of element 10, the signal disappears and the counter 22 stops counting the pulses from the reading head 4. At the moment, counter 22 contains a number corresponding to the length of the fabric wound in a roll on an arc of one radian or the same equal to the wound radius o roll. At the same time, the signal from the output of the memory element 18 by means of the delay element 19 acts on the common input of the multi-bit controlled

20. thus the number from the key switch 22

is transferred to register 21. By

11, at its pulse output 23, a signal appears that erases the number in the memory element 18 and the contents of the counters 22 and 11. The device is ready for a new measurement cycle.

Claims (3)

1. The radius meter of the roll, which contains a rotary pulse frequency sensor of the winding shaft, a pulse counter, the counting input of which is connected to the output of the element And, the first input connected to the output of the rotary pulse frequency sensor of the rotation of the follower shaft, memory element and display unit, characterized in that, in order to improve the accuracy by making it possible to start measurements from an arbitrary angular coordinate of the coil to be rolled, it. equipped with a start and end measurement setting unit, an additional element-additional pulse counter, the capacity of which is equal to the number of marks placed along the circumference of the rotor of the rotor pulse rotary speed sensor of the winding shaft, while the output of the rotary pulse the formation output of which is connected to the first inputs of the comparison elements, and the pulse output of the overflow is connected to the erasures of the additional memory element and pulse counters, the outputs of the unit for specifying the beginning and end of measurement are connected to the second inputs of the corresponding comparison elements, the outputs connected to the information inputs of the corresponding memory elements t, the output of the additional memory element is connected to the control input of the display unit and to the erase input of the memory element, the output connected to V eye input AND gate, wherein the pulse counter outputs are connected to respective data inputs of the indication unit. 2, The meter according to claim 1, wherein the display unit consists of a register, a multi-bit key whose inputs are information inputs of the display unit, and a delay element, input which is the control input of the display unit, while the outputs of the multi-bit key are connected to the corresponding inputs of the register, and the output of the delay element is connected to the control inputs of the multi-bit key. 3. The meter according to claim 1, about t that is due to the fact that the rotor a pulsed rotational speed sensor of the follower shaft consists of K countershaft heads and an OR element, the output of which is the output of a rotary impulse frequency sensor the next shaft, while the adjacent reading heads are offset by one angle relative to the other, and the outputs of the reading heads are connected to the corresponding inputs of the OR element. "Meter according to claim 1, characterized in that, in order to increase the convenience of information processing, the number of impulse marks on the rotor of the impulse speed sensor winding shaft is a multiple of 5091 fie.Z Compiled by B. Kisin Editor E. Sligan Tehred A. Kravchuk Proofreader A. Zimokosov Order 3240/17 Circulation 590 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, Projecto st., 4 Phil