CN208844258U - A kind of weft accumulator main shaft synchronous control system - Google Patents
A kind of weft accumulator main shaft synchronous control system Download PDFInfo
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- CN208844258U CN208844258U CN201821283645.0U CN201821283645U CN208844258U CN 208844258 U CN208844258 U CN 208844258U CN 201821283645 U CN201821283645 U CN 201821283645U CN 208844258 U CN208844258 U CN 208844258U
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- weft accumulator
- main shaft
- angle
- loom
- encoder
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Abstract
The utility model discloses a kind of weft accumulator main shaft synchronous control systems, including at least two encoders, phase controller and driver: the phase controller is electrically connected at least two encoder and driver respectively；At least two encoder for detecting the rotation angle of loom main shaft and weft accumulator motor respectively；The phase controller is used to convert the rotary angle signal of loom main shaft and weft accumulator motor to the phase difference of angle and exports the weft accumulator motor rotational speed signal according to the adjusting offset；Driver, for receiving the weft accumulator motor rotational speed signal and driving the weft accumulator motor according to the speed signal.The utility model real-time detection loom main shaft angle, is controlled by Phase synchronization, drives weft accumulator motor, so that rotation angle of the weft accumulator around yarn, real-time tracking loom main shaft angle guarantee the synchronism of yarn releasing and loom wefting insertion, keep yarn tension constant, improves the quality of cloth.
Description
Technical field
The utility model relates to loom technical field more particularly to a kind of weft accumulator main shaft synchronous control systems.
Background technique
With the development of science and technology, since traditional weft accumulator is there are mechanical mechanism complexity, the problems such as later period maintenance is difficult,
Gradually substituted by electronic weft storage device.Conventional textile loom is after wefting insertion, by weft accumulator wefting insertion, tradition machinery formula weft accumulator,
Because it is with loom main shaft by machine driving, transmission ratio is fixed, it is ensured that weft accumulator and loom main shaft are fully synchronized,
Yarn tension mutation problems when wefting insertion being not present in this way；And by electronic weft storage device control stop yarn stick put down prevent yarn fly
Row, can make suddenly becoming larger for yarn tension in this way, and yarn is drawn Shen, cloth cover is be easy to cause flaw occur.
The patent of Publication No. CN2558669Y discloses a kind of coaxial yarn tension adjusting device, is related to shuttleless loom
The weft accumulator of weft yarn is provided.It by yarn storage drum, tubaeform elastic metallic drag ring, spring (8), tensioner bracket, tensioner seat,
Connection ring, the sliding rail on top cover of weft storage device plate, adjusting tensioner do the composition such as the adjusting screw being moved forward and backward and yarn porcelain eye,
It is technically characterized in that the small head end weldbonding of drag ring is suspended on tensioner bracket in connection ring, and through spring, tensioner
Bracket is packed into tensioner seat, and by a wire loop card jail, the inside middle portion of drag ring is contacted with yarn storage drum, and yarn is from therebetween across simultaneously
Frictional force is applied to yarn by the rubbing surface, most guides loom into through yarn porcelain eye afterwards.Tensioner bracket is mounted on weft accumulator top
On the sliding rail of cover board, it is moved forward and backward tensioner bracket by adjusting screw, changes the pressure of drag ring and weft accumulator yarn storage drum
Power is adjustable from the yarn tension passed through therebetween.But structure is complicated for device presence, the drawbacks such as inconvenient.
The patent of Publication No. CN205856746U discloses a kind of tension regulating system of weft accumulator.A kind of weft accumulator
Tension regulating system, including controller, receiver and weft accumulator；The weft accumulator, including ontology, and be arranged on the body
Tension detecting module, tension self-adjustment module and tension adjustment component；The controller and receiver signal transmit, and pass through
Receiver is adjusted the systemic presupposition tension of tension self-adjustment module；The tension detecting module detection yarn tension is simultaneously
Feed back to tension self-adjustment module；The tension self-adjustment module is by the feedback tension and system of the tension detecting module
Pre-set tension is compared, and drives the tension adjustment component operation.The tension regulating system can be to the tension on weft accumulator
It is monitored in real time and is adjusted in real time, to can guarantee that the tension force of weft accumulator is accurate, permanent.But the program, pass through meter
It is not smart enough control to calculate yarn tension, thereby increases and it is possible to influence the normal work of loom.
Utility model content
The purpose of this utility model is in view of the drawbacks of the prior art, to provide a kind of weft accumulator main shaft synchronous control system,
The synchronism that can guarantee yarn releasing and loom wefting insertion keeps yarn tension constant, improves the quality of cloth.
In order to achieve the goal above, the utility model uses following technical scheme:
A kind of weft accumulator main shaft synchronous control system, including at least two encoders, phase controller and driver:
The phase controller is electrically connected at least two encoder and driver respectively；
At least two encoder for detecting the rotation angle of loom main shaft and weft accumulator motor respectively；
The phase controller is used to convert angle for the rotary angle signal of loom main shaft and weft accumulator motor
Phase difference simultaneously exports the weft accumulator motor rotational speed signal according to the adjusting offset；
Driver, for receiving the weft accumulator motor rotational speed signal and driving the storage according to the speed signal
Latitude device motor.
Preferably, at least two encoder is the incremental encoder with ABZ signal.
Preferably, at least two encoder includes the first encoder and second encoder:
First encoder is installed on loom, for detecting the rotation angle of loom main shaft；
The second encoder and weft accumulator motor coaxle are installed, for detecting the rotation angle of motor.
Preferably, the phase controller includes:
First phase difference computing module is knitted for adjusting the rotation angle of the output after the loom main shaft frequency multiplication with described
The error of the practical rotation angle of cloth owner's axis obtains first speed value；
Second phase difference computing module, for adjusting the rotation of the loom Spindle rotation angle degree Yu the weft accumulator motor
Gyration error obtains second speed value；
Adder for the first speed value to be added with the second speed value, and will add up result and be believed with speed
Number output.
Preferably, the first phase difference computing module includes:
Angle multiplier unit, for controlling yarn releasing circle number；
Integrating network unit, for carrying out integrating cumulative to the first speed value and being converted to practical rotation angle.
Preferably, the first phase difference computing module includes:
First pi regulator, for adjusting the first speed value, so that the output of the loom main shaft rotates angle
The error of pre- practical rotation angle is close to zero.
Preferably, the second phase difference computing module includes:
Second pi regulator, for adjusting the second speed value.
Compared with prior art, the utility model real-time detection loom main shaft angle, is controlled by Phase synchronization, driving
Weft accumulator motor, so that rotation angle of the weft accumulator around yarn, real-time tracking loom main shaft angle guarantee yarn releasing and woven fabric power traction
The synchronism of latitude keeps yarn tension constant, improves the quality of cloth.
Detailed description of the invention
Fig. 1 is a kind of weft accumulator main shaft synchronous control system structure chart that embodiment one provides；
Fig. 2 is a kind of operation schematic diagram for phase controller that embodiment one provides.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Embodiment one
Present embodiment discloses a kind of weft accumulator main shaft synchronous control systems, as described in Figure 1, including the first encoder 101
With second encoder 102, phase controller 103 and driver 104:
The phase controller 103 respectively with first encoder 101 and the second encoder 102 and driver
104 electrical connections；
First encoder 101 is for detecting loom main shaft, and the second encoder 102 is for detecting weft accumulator electricity
The rotation angle of machine；
The phase controller 103 is used to convert angle for the rotary angle signal of loom main shaft and weft accumulator motor
Phase difference and the weft accumulator motor rotational speed signal is exported according to the adjusting offset；
Driver 104, for receiving the weft accumulator motor rotational speed signal and driving institute according to the speed signal
State weft accumulator motor.
Prevention yarn flight is put down to solve to control only yarn stick by electronic weft storage device, makes the suddenly change of yarn tension
Greatly, yarn is drawn Shen, and cloth cover is caused the problem of flaw occur, in order to solve the problems, such as that yarn Weft Insertion the present embodiment proposes one
The scheme of the main shaft synchronously control of kind weft accumulator, detects loom main shaft angle, is controlled by Phase synchronization, so that weft accumulator
Around the rotation angle of yarn, real-time tracking loom main shaft angle guarantees the synchronism of yarn releasing and loom wefting insertion, makes yarn tension
It is constant, improve the quality of cloth.
Preferably, the first encoder 101 and second encoder 102 are the incremental encoder with ABZ signal, the first coding
Device 101 is installed on loom, with main shaft synchronous rotary, also known as spindle encoder, is detected Spindle rotation angle degree, is sent phase to
The real-time angular signal of 103 main shaft of controller；Second encoder 102 is installed with weft accumulator motor coaxle, detects the rotation of motor
Angle, also known as weft accumulator motor encoder, i.e. weft accumulator feed back to phase controller 103 around the rotation angle of yarn.
Phase controller 103 receives the angle signal of spindle encoder and the angle signal of weft accumulator motor encoder, leads to
It is poor to cross two angular phases of detection, adjusts output speed signal in real time to driver, driver according to speed signal driving motor,
So that weft accumulator motor encoder angle real-time tracking spindle encoder angle, realizes that weft accumulator rotates angle real-time tracking around yarn
Loom main shaft angle guarantees the synchronism of yarn releasing and loom wefting insertion.
Driver 104, the speed preset signal of receiving phase controller output can be general general frequency conversion and drive
Dynamic device, or the motor driver of customization.
Weft accumulator motor in the present embodiment can use brshless DC motor BLDC, permanent magnet synchronous motor or three-phase
Asynchronous machine depends on the matching with motor driver 104 using what kind of motor.
Preferably, the phase controller includes:
First phase difference computing module is knitted for adjusting the rotation angle of the output after the loom main shaft frequency multiplication with described
The error of the practical rotation angle of cloth owner's axis obtains first speed value；
Second phase difference computing module, for adjusting the rotation of the loom Spindle rotation angle degree Yu the weft accumulator motor
Gyration error obtains second speed value；
Adder for the first speed value to be added with the second speed value, and will add up result and be believed with speed
Number output.
The velocity amplitude of the adjusted calculating of the present embodiment phase controller includes principal velocity and speed adjustment amount, the as first speed
Angle value and second speed value, principal velocity rotate the acquisition of angle error calculation by calculating loom, regulate the speed and knitted by calculating
Cloth machine rotation speed and weft accumulator motor rotation angle error calculation obtain, and are added above-mentioned velocity amplitude by adder,
Driver drives the speed of weft accumulator motor to run according to the speed signal, to complete loom Spindle rotation angle degree and storage latitude
Device motor rotates the real time subtraction control of angle around yarn.
Preferably, the first phase difference computing module includes:
Angle multiplier unit, for controlling yarn releasing circle number, specifically: θ 2=returns-changes (1 × m of θ), θ1=return-changeWherein, θ1Indicate the rotation angle of loom main shaft, K1 indicates the first encoder umber of pulse weekly, and n1 indicates a
The count value exported after frequency multiplication, a indicate frequency；θ2The output of main shaft rotates angle after expression frequency multiplication, and m indicates yarn releasing circle number；
Integrating network unit, for carrying out integrating cumulative to the first speed value and being converted to practical rotation angle.
Preferably, the first phase difference computing module includes:
First pi regulator, for adjusting the first speed value, so that the output of the loom main shaft rotates angle
For the error of pre- practical rotation angle close to zero, formula is as follows:
ω 1=Kpe1+Ki ∫ e1dt
Wherein, e1=sin (θ 2- θ 3)；θ 3=∫ ω 1dt；ω 1 indicates first speed value, and Kp indicates proportional gain, Ki
Indicate that integral gain, e1 indicate the output rotation angle of loom main shaft and the error of practical rotation angle, θ3Expression integrates back
The practical rotation angle of road feedback.
Preferably, the second phase difference computing module includes:
Angle calculation unit, for calculating the rotation angle of the weft accumulator motor, specifically: θ4=return-changeθ4Indicate the rotation angle of weft accumulator motor, k2 indicates second encoder umber of pulse weekly, and n2 indicates a frequency multiplication
The count value exported afterwards, a indicate frequency；
Second pi regulator, for adjusting second speed value, specifically: ω 2=Kpe2+Ki ∫ e1dt, wherein
E2=sin (θ2-θ4), ω 2 indicates second speed value, θ2The output of main shaft rotates angle after expression frequency multiplication, and e2 indicates woven fabric owner
The rotation angular error of axis rotation angle and the weft accumulator motor.
As shown in Fig. 2, being the operation schematic diagram of phase controller 102, by angle calculation 1 and 6, angle frequency multiplication 2, phase
Compare 3 and 7, pi regulator at live spindle angle, θ 1 and storage latitude motor angle θ 4 (i.e. winding angle), conversion formula is as follows,
K1, K2 are respectively the first encoder and second encoder umber of pulse weekly, and a indicates that frequency, the present embodiment are 4 frequencys multiplication, n1, n2
Respectively the first encoder and second encoder counted number of pulses:
Encoder Z signal is used to determine the zero degree position of angle simultaneously.
Angle frequency multiplication 2, for completing the control of yarn releasing circle number, the Uneven Width width of loom is different, the weft length needed
Difference, so needing the circle number of weft accumulator yarn releasing different when wefting insertion, in order to keep synchronous, it is necessary to so that main shaft and storage latitude motor
Rotating cycle has a proportionate relationship, general to store up the integral multiple that latitude motor rotating cycle is main shaft rotating cycle.The work of angle frequency multiplication 2
With being that main shaft is allowed to turn around (0-359 degree), integral multiple 0-359 degree is generated.
Conversion formula: θ 2=normalizes (1 × m of θ), and m is yarn releasing circle number, and θ 2 is the Spindle rotation angle degree after frequency multiplication.
Phase bit comparison 3, it compare the Spindle rotation angle degree θ 2 after frequency multiplication and the feedback angle θ 3 that is exported by integrating network 5 it
Between phase difference, output error signal e1, formula is as follows:
E1=sin (θ 2- θ 3) formula 2
Pi regulator 4, as the first pi regulator, when phase error signal e1 non-zero, pi regulator will work, and increase
It is big or reduce output speed signal ω 1, so that the Spindle rotation angle degree after frequency multiplication θ 2 and the feedback angle that is exported by integrating network 5
Phase difference between θ 3 approaches zero, and formula is as follows:
ω 1=Kpe1+Ki ∫ e1dt formula 3
Kp is proportional gain, and Ki is integral gain
Integrating network 5, effect are that angular velocity omega 1 is converted into corresponding angle, θ 3 by the way that integral is cumulative, and feedback arrives phase
Compare 3 and carries out phase bit comparison with the Spindle rotation angle degree θ 2 after frequency multiplication.Conversion formula is as follows:
θ 3=∫ ω 1dt formula 4
Similarly, weft accumulator motor rotation angle, θ 4 is obtained after angle calculation 6 by weft accumulator motor encoder ABZ signal
(i.e. around the rotation angle of yarn), and Spindle rotation angle degree θ 2 after frequency multiplication are conveyed to phase bit comparison 7, by phase difference formula e2
After=sin (θ 2- θ 4) is calculated, error signal e 2 is obtained, by pi regulator 8, i.e. the second pi regulator, controls output speed letter
Number ω 2.
Speed signal ω 1 is principal velocity, and speed signal ω 2 is speed adjustment amount, secondly it is defeated to be added calculating by adder 9
Out after speed signal ω, control driver runs motor according to this setting speed ω.So as to complete loom main shaft
Rotation angle and weft accumulator motor rotate the real time subtraction control of angle around yarn.
The present embodiment real-time detection loom main shaft angle, is controlled by Phase synchronization, drives weft accumulator motor, so that storage
Rotation angle of the latitude device around yarn, real-time tracking loom main shaft angle guarantee the synchronism of yarn releasing and loom wefting insertion, make yarn
Constant tension improves the quality of cloth.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (7)
1. a kind of weft accumulator main shaft synchronous control system, which is characterized in that including at least two encoders, phase controller and drive
Dynamic device:
The phase controller is electrically connected at least two encoder and driver respectively；
At least two encoder for detecting the rotation angle of loom main shaft and weft accumulator motor respectively；
The phase controller is used to convert the rotary angle signal of loom main shaft and weft accumulator motor to the phase of angle
Difference simultaneously exports the weft accumulator motor rotational speed signal according to the adjusting offset；
Driver, for receiving the weft accumulator motor rotational speed signal and driving the weft accumulator according to the speed signal
Motor.
2. a kind of weft accumulator main shaft synchronous control system as described in claim 1, which is characterized in that at least two coding
Device is the incremental encoder with ABZ signal.
3. a kind of weft accumulator main shaft synchronous control system as described in claim 1, which is characterized in that at least two coding
Device includes the first encoder and second encoder:
First encoder is installed on loom, for detecting the rotation angle of loom main shaft；
The second encoder and weft accumulator motor coaxle are installed, for detecting the rotation angle of motor.
4. a kind of weft accumulator main shaft synchronous control system as claimed in claim 3, which is characterized in that the phase controller packet
It includes:
First phase difference computing module, for adjusting the rotation angle of the output after the loom main shaft frequency multiplication and the loom
The error of the practical rotation angle of main shaft obtains first speed value；
Second phase difference computing module, for adjusting the rotation angle of the loom Spindle rotation angle degree Yu the weft accumulator motor
It spends error and obtains second speed value；
Adder, for the first speed value to be added with the second speed value, and it is defeated with speed signal to will add up result
Out.
5. a kind of weft accumulator main shaft synchronous control system as claimed in claim 4, which is characterized in that the first phase difference meter
Calculating module includes:
Angle multiplier unit, for controlling yarn releasing circle number；
Integrating network unit, for carrying out integrating cumulative to the first speed value and being converted to practical rotation angle.
6. a kind of weft accumulator main shaft synchronous control system as claimed in claim 4, which is characterized in that the first phase difference meter
Calculating module includes:
First pi regulator, for adjusting the first speed value, so that the output of the loom main shaft rotates the pre- reality of angle
Border rotates the error of angle close to zero.
7. a kind of weft accumulator main shaft synchronous control system as claimed in claim 4, which is characterized in that the second phase difference meter
Calculating module includes:
Second pi regulator, for adjusting the second speed value.
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| CN201821283645.0U CN208844258U (en) | 2018-08-09 | 2018-08-09 | A kind of weft accumulator main shaft synchronous control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108914336A (en) * | 2018-08-09 | 2018-11-30 | 宁波乐邦电气有限公司 | A kind of weft accumulator main shaft synchronous control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108914336A (en) * | 2018-08-09 | 2018-11-30 | 宁波乐邦电气有限公司 | A kind of weft accumulator main shaft synchronous control system |
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