Straight twister air ring measurement apparatus
Technical field
It is especially relevant with a kind of straight twister air ring measurement apparatus the invention belongs to textile machine straight twister technical field.
Background technology
Yarn is twisted together on textile machine straight twister, a yarns among spindle, spindle is outer one, in ingot
During sub rotation at a high speed, the yarn outside spindle produces air ring, if the diameter of air ring is too small, yarn easily connects with ingot tank wall
Touch cause broken yarn, if air ring diameter is excessive, air ring torque is bigger, and spindle motor electric current is bigger, current of electric more it is big just
More power consumptions are produced, tries one's best small and does not allow air ring is too small to touch ingot tank wall so to control air ring diameter, at present
Existing method is to measure the size of air ring diameter indirectly by the electric current of spindle motor, but is measured indirectly by electric current
Air ring size is not very stable and direct, because motor current size is more than relevant with air ring diameter, and is supplied with motor
The relevant system of piezoelectric voltage, motor fret degree, the difference of mechanical rotating friction force etc..
The content of the invention
The purpose of the present invention is intended to overcome lacking for the existing less stable by way of current of electric measures air ring diameter
Fall into, there is provided a kind of to measure the straight twister air ring measurement apparatus that directly and stability is good, precision is high.
Therefore, the present invention uses following technical scheme:Straight twister air ring measurement apparatus, it is characterized in that, described measurement dress
Put including generating laser, transverse by emitters travel mechanism, laser pickoff, receiver transverse moving mechanism and control system,
Transverse by emitters travel mechanism includes transmitter motor and transmitter synchronization tape loop, transmitter motor driving transmitter synchronization band
Loop reciprocating rotating, generating laser are fixedly installed on transmitter synchronization tape loop;The receiver transverse moving mechanism bag
Receiver motor and receiver synchronization tape loop are included, receiver synchronization tape loop drives reciprocating rotating, laser by receiver motor
Receiver is fixedly installed on receiver synchronization tape loop, and transmitter synchronization tape loop and receiver synchronization tape loop are in laterally
Set and the two synchronous tape loop parallel both sides for being divided into spindle outer yarn air ring spaced apart, generating laser and swash
The position of optical receiver is corresponding, i.e., laser transmitter projects go out laser beam alignment laser pickoff, and generating laser and
Laser pickoff synchronizing moving under the driving of respective transmitter motor and receiver motor, described control system are monolithic
Machine, driver of the single-chip microcomputer with the generating laser, laser pickoff, the driver of transmitter motor and receiver motor
Carry out data connection.
As the supplement to above-mentioned technical proposal and perfect, present invention additionally comprises following technical characteristic.
The laser beam that described generating laser is sent is point-like micropower laser, turns into some straight lines after launching.
Operation principle of the present invention:Single-chip microcomputer control transmitter motor and receiver motor drive transmitter synchronization to take back simultaneously
Road and receiver synchronization tape loop gyration so that generating laser and laser pickoff synchronizing moving in the same direction;Sent out in laser
During emitter and laser pickoff synchronizing moving in the same direction, the laser received according to laser pickoff can be defined as following three
Kind:When the laser beam that generating laser is sent is emitted directly toward laser pickoff, i.e. laser beam is located at the outer of ballooning of yarn, and centre does not have
There is any stop, this state is defined as strong light state;When the laser beam that generating laser is sent is stopped by space,
That is between ballooning of yarn and ingot tank wall, the laser pickoff that blocks of midfeather connects laser beam to laser beam
Receive, this state is defined as dim light state;When the laser beam that generating laser is sent receives the stop of ingot tank tank skin, i.e. laser connects
Receive device and do not receive the laser that laser transmitter projects come completely, this state is defined as no light condition;According to above-mentioned three kinds of feelings
Condition, when setting the conversion since strong light state to dim light state, single-chip microcomputer is sent to the arteries and veins of transmitter motor and receiver motor
It is PN1 to rush number, sets umber of pulse that single-chip microcomputer when starting to change from dim light state to no light condition is sent as PN2, setpoint distance
Umber of pulse conversion coefficient is K, and the external diameter of ingot tank tank skin is D, therefore can show that the radius R of air ring is:R=(PN2-PN1)*K+
D/2, by, it is recognised that range pulse number conversion coefficient K is industry known numeric value, outer diameter D can be by measuring ingot tank in formula
Tank skin external diameter directly measures, and PN2 is constant for machinery, as long as because machine is carried out, mechanical structure is with regard to constant, only
Need to once it be measured when working at the beginning, as long as so measuring PN1 numerical value in the course of the work, PN1 is sent out according to laser
The umber of pulse of the point of emitter and laser pickoff when strong light state starts to dim light State Transferring can be drawn, and then be calculated
Current air ring radius and diameter.
The present invention can reach following beneficial effect:This detection means is adapted to the air ring measurement of different yarns, is not required to
Arrange parameter is wanted, and the size for the detection air ring diameter that can directly stablize, precision is high, and easy to detect, principle is simple, no matter while
When voltage, mechanical wear change, measurement accuracy is not influenceed.
Brief description of the drawings
Fig. 1 is principle schematic diagram of the present invention.
Fig. 2 is the connection diagram of the present invention.
Fig. 3 is the schematic diagram of heretofore described strong light state.
Fig. 4 is the schematic diagram of heretofore described dim light state.
Fig. 5 is the schematic diagram of heretofore described no light condition.
Embodiment
The embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
As shown in Fig. 1 ~ Fig. 5, the present invention includes generating laser 1, transverse by emitters travel mechanism, laser pickoff 9, connect
Device transverse moving mechanism and control system are received, transverse by emitters travel mechanism includes transmitter motor 3 and transmitter synchronization is taken back
Road 2, transmitter motor 3 drive the reciprocating rotating of transmitter synchronization tape loop 2, and generating laser 1 is fixedly installed in transmitter synchronization
On tape loop 2;The receiver transverse moving mechanism includes receiver motor 7 and receiver synchronization tape loop 8, and receiver is synchronous
Tape loop 8 drives reciprocating rotating by receiver motor 7, and laser pickoff 9 is fixedly installed on receiver synchronization tape loop 8, hair
Emitter synchronization tape loop 2 is in laterally setting with receiver synchronization tape loop 8 and two synchronous tape loops are spaced apart parallel
It is divided into the both sides of spindle outer yarn air ring 6, the position of generating laser 1 and laser pickoff 9 is corresponding, i.e. Laser emission
Laser beam 4 that device 1 is launched is directed at laser pickoff 9, and laser beam 4 is point-like micropower laser, after what is sent launch into
For some straight lines, and generating laser 1 and laser pickoff 9 are under the driving of respective transmitter motor 3 and receiver motor 7
Synchronizing moving, described control system are single-chip microcomputer 10, single-chip microcomputer 10 with the generating laser 1, laser pickoff 9, hair
The driver of emitter motor 3 carries out data with the driver of receiver motor 7 and connected.
Operation principle of the present invention:The control transmitter motor 3 of single-chip microcomputer 10 and receiver motor 7 drive transmitter synchronization simultaneously
Tape loop 2 and the gyration of receiver synchronization tape loop 8 so that 9 synchronizing moving in the same direction of generating laser 1 and laser pickoff;
During 9 synchronizing moving in the same direction of generating laser 1 and laser pickoff, the laser that is received according to laser pickoff 9 can be with
It is defined as following three kinds:When the laser beam 4 that generating laser 1 is sent is emitted directly toward laser pickoff 9, i.e. laser beam 4 is located at yarn
Outside thread balloon 6, centre is defined as strong light state 11 without any stop, this state;When the laser beam that generating laser 1 is sent
4 are stopped by space, i.e., laser beam 4 is located between ballooning of yarn 6 and the outer wall of ingot tank 5, the stop of midfeather
Reception of the laser pickoff 9 to laser beam 4, this state are defined as dim light state 12;When the laser beam that generating laser 1 is sent
4 receive the stop of the tank skin of ingot tank 5, i.e. laser pickoff 9 does not receive the laser that generating laser 1 launches completely, this
State is defined as no light condition 13;According to above-mentioned three kinds of situations, when setting the conversion since strong light state to dim light state, monolithic
It is PN1 that machine 10, which is sent to transmitter motor 3 and the umber of pulse of receiver motor 7, is set since dim light state to no light condition
The umber of pulse that single-chip microcomputer 10 is sent when changing is PN2, and setpoint distance umber of pulse conversion coefficient is K, and the external diameter of ingot tank tank skin is D,
Therefore it can show that the radius R of air ring 6 is:R=(PN2-PN1)* K+D/2, by formula it is recognised that range pulse number convert
COEFFICIENT K is industry known numeric value, and outer diameter D can directly be measured by measuring the tank skin external diameter of ingot tank 5, and PN2 is for machinery
It is constant, as long as because machine is carried out, mechanical structure only need to once measure with regard to constant when working at the beginning, so
As long as measuring PN1 numerical value in the course of the work, PN1 is according to generating laser 1 and laser pickoff 9 in strong light state to dim light
The umber of pulse of point when State Transferring starts can be drawn, and then calculate the current radius of air ring 6 and diameter.
During present invention work, single-chip microcomputer 10 drives generating laser 1 to send laser beam 4 by triode, and single-chip microcomputer 10 is controlled
The driver work of the driver and receiver motor 7 of transmitter motor 3 processed, drives transmitter motor 3 and receiver electricity respectively
Machine 7 works asynchronously, and makes generating laser 1 and laser pickoff 9 same in the transmitter synchronization band and receiver of respective corresponding installation
Step takes synchronizing moving, the laser beam 4 that generating laser 1 is sent is directed at laser pickoff 9 all the time, laser pickoff 9 will connect
The laser signal received sends a/d converter to, and data are compared by multiple comparators, and by useful data-signal
It is sent to single-chip microcomputer 10, single-chip microcomputer 10 is analyzed the data received and the public affairs by originally having been programmed on single-chip microcomputer 10
Formula is calculated, and is finally drawn the size data of ballooning of yarn 6, is shown by the display of computer or single-chip microcomputer 10.