CN110295460A - It backstitches control method, backstitch control system and sewing machine - Google Patents
It backstitches control method, backstitch control system and sewing machine Download PDFInfo
- Publication number
- CN110295460A CN110295460A CN201910666515.8A CN201910666515A CN110295460A CN 110295460 A CN110295460 A CN 110295460A CN 201910666515 A CN201910666515 A CN 201910666515A CN 110295460 A CN110295460 A CN 110295460A
- Authority
- CN
- China
- Prior art keywords
- panel seat
- needle gage
- duration
- swing
- swing panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/22—Work-feeding means with means for setting length of stitch
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B55/00—Needle holders; Needle bars
- D05B55/14—Needle-bar drives
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/10—Electrical or electromagnetic drives
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/20—Control devices responsive to the number of stitches made
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses one kind to backstitch control method, backstitches control system and sewing machine.This method comprises: step S1: obtaining swing panel seat from initial position and accelerate the first duration spent to zero needle gage position with starting acceleration, execute step S2；Step S2: judging whether the first duration is greater than preset duration threshold value, if so, executing step S3；Step S3: adjustment backstitches electromagnet pulling force, and swing panel seat is made, to the second duration of retarded motion, to execute step S4, wherein backstitch electromagnet and be connected to swing panel seat by original；Step S4: control swings panel seat and continues by original to moving to final position, and the acceleration in motion process is not more than starting acceleration.This method is by doing deceleration processing in swing panel seat movement to when swinging the monitoring of panel seat movement duration, determining that the practical needle gage situation for swinging panel seat, needle gage are larger halfway, reduce the end speed swung when panel seat moves to final position compared with the prior art, the noise of generation can be reduced.
Description
Technical field
The present invention relates to technical field is backstitched, in particular to one kind backstitches control method, backstitches control system and sewing machine.
Background technique
Sewing machine is to form one or more stitchings with one or more sewing thread, on sewing, make one or more layers seam
The machine that material interweaves or unites by a seam.Sewing machine is generally all made of feed device, base, transmission and four part of attachment, is passed through
The movement of each mechanism reasonably cooperates, and cycle operation unites by a seam sewing.
Existing flat seam machine backstitches electromagnet structure when backstitching process, after backstitching electromagnet energization, passes through existing driver
Structure pulls swing panel seat to move from positive needle gage stop point to negative needle gage, until feed regulator and the collision of bidding quotation stud reach negative needle
Away from stop point, it is approximately to stop after an even accelerator and feed regulator and the collision of bidding quotation stud that whole process, which swings panel seat,
Only.And the end speed when feed regulator moves to negative needle gage it is larger when, the generation of feed regulator and bidding quotation stud is acutely touched
It hits, biggish noise can be generated, and stroke speed is bigger, sound is louder, clothes factory especially more in short distance joint stabilizing process,
It is especially prominent to stitch noise.This aspect can generate biggish noise pollution, can be to part zero on the other hand due to biggish collision
The part service life has a negative impact.
Therefore, how noise is reduced, be a technical problem that technical personnel in the field need to solve at present.
Summary of the invention
In view of this, the object of the present invention is to provide one kind to backstitch control method and system, the process of backstitching can reduce
In noise.It is a further object of the present invention to provide a kind of including the above-mentioned sewing machine for backstitching control system.
To achieve the above object, the invention provides the following technical scheme:
One kind backstitching control method, comprising:
Step S1: it obtains to swing panel seat and accelerate with starting acceleration from initial position and is spent to zero needle gage position
First duration executes step S2；
Step S2: judging whether first duration is greater than preset duration threshold value, if so, executing step S3, wherein described
Preset duration threshold value moves to zero by initial position in the same direction according to default needle gage with the starting acceleration for the swing panel seat
The duration that needle gage position is spent；
Step S3: adjustment backstitches the pulling force of electromagnet, executes the swing panel seat to the second duration of retarded motion, by original
Step S4, wherein the electromagnet that backstitches is connected to the swing panel seat；
Step S4: the control swing panel seat continues by original to moving to final position, and the acceleration in motion process
No more than the starting acceleration.
Preferably, in the step S4, the control swing panel seat continues specific to final position is moved to by original
Include:
The pulling force for backstitching electromagnet described in adjustment again, accelerates the swing panel seat to the final position.
It is preferably, described to accelerate the swing panel seat to the final position in the step S4 specifically:
Accelerate the swing panel seat to the final position with identical as the starting acceleration.
Preferably, before the step S1 further include:
After the initial tensile force that the swing panel seat is subject to is enlarged to default pulling force, the swing panel seat is controlled from initial bit
Setting in motion is set to move with the starting acceleration；
In the step S4, the end speed swung when panel seat moves to final position is less than initial end speed, wherein
The initial end speed be the swing panel seat according to the corresponding initial acceleration of the initial tensile force according to same needle away from the same direction
Initial terminal velocity when moving to final position from initial position.
Preferably, between the step S2 and the step S3 further include:
Step S21: determine the swing panel seat according to the corresponding initial acceleration of the initial tensile force according to same needle away from
The default total duration in final position is moved to from initial position in the same direction and calculates third duration, and when third is a length of described default
Total duration subtracts the difference that first duration obtains, and executes step S22；
Step S22: institute is calculated in conjunction with acceleration situation of the swing panel seat between zero needle gage position and final position
The second duration is stated, the swing panel seat a length of third duration when always moving between zero needle gage and final position is made.
It is preferably, described to accelerate the swing panel seat to the final position in the step S4 specifically:
Make the swing panel seat with the second acceleration movement position to terminal, and the swing panel seat is made to move to terminal position
End speed when setting no more than the swing panel seat with the starting acceleration according to corresponding default needle gage in the same direction by initial bit
Set the end speed for moving to final position.
Preferably, the pulling force that electromagnet is backstitched described in the adjustment specifically includes:
The open/close states of electromagnet are backstitched described in switching.
One kind backstitching control system, comprising:
Timing module is accelerated with starting acceleration to zero needle gage position institute for obtaining swing panel seat from initial position
The first duration spent drives judgment module；
The judgment module, for judging whether first duration is greater than preset duration threshold value, if so, the first control of driving
Molding block, wherein the preset duration threshold value be the swing panel seat with the starting acceleration according to default needle gage in the same direction by
Initial position moves to the duration that zero needle gage position is spent；
First control module transports the swing panel seat to slowing down by original for adjusting the pulling force for backstitching electromagnet
Dynamic second duration, drives the second control module, wherein the electromagnet that backstitches is connected to the swing panel seat；
Second control module continues by original to moving to final position for controlling the swing panel seat, and moves
Acceleration in the process is not more than the starting acceleration.
Preferably, the timing module includes the sensing that zero needle gage position whether is moved to for detecting the swing panel seat
Device assembly, according to the signal timing of the sensor module.
A kind of sewing machine, including sewing component further include as described above backstitching control system.
It is provided by the invention to backstitch control method, by the monitoring to panel seat movement duration is swung, determining pendulum can be corresponded to
The practical needle gage situation of movable plate seat, and deceleration processing is carried out in the movement midway for swinging panel seat when needle gage is larger, make oscillating deck
End speed when seat moves to final position reduces compared with the prior art, corresponding to reduce feed regulator and the collision of bidding quotation stud
When end speed, the loss of momentum in collision process becomes smaller, and impact severity reduces, and reduces the noise of generation, can not influence
Finally realizing while backstitching response speed reduces the effect for backstitching noise, is conducive to extend feed regulator and bidding quotation stud etc.
The service life of part.
It is provided by the invention to backstitch control system and including the above-mentioned sewing machine for backstitching control system, can reduce and backstitch
Noise in the process.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is V-T comparison diagram when swing panel seat starting acceleration is identical；
Fig. 2 is V-T comparison diagram when swing panel seat needle gage is identical；
Fig. 3 is that flush joint backstitches structure front elevation；
Fig. 4 is schematic diagram when feed regulator is in positive needle gage stop point with bidding quotation stud；
Fig. 5 is schematic diagram when feed regulator is in negative needle gage stop point with bidding quotation stud；
Fig. 6 is that flush joint backstitches bottom surface structure figure；
Fig. 7 is sensor module detail view；
Fig. 8 is the program flow diagram of control method provided by the present invention；
Fig. 9 is another program flow diagram of control method provided by the present invention.
Fig. 3 is into Fig. 7:
1- feed regulator, 2- bidding quotation stud, 3- sensor module, 4- backstitch component, 5- sensor stand, and 6- Hall passes
Sensor, 7- magnet, 8- swing panel seat, 9- reset tension spring.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Core of the invention is to provide one kind and backstitches control method and system, can reduce the noise during backstitching.
Another core of the invention is to provide a kind of including the above-mentioned sewing machine for backstitching control system.
In the description of the present invention, the ordinal numbers such as term " first ", " second ", " third " are used for description purposes only, without
It can be interpreted as indication or suggestion relative importance.
In a kind of specific embodiment provided by the present invention for backstitching control method, specifically includes the following steps:
Step S1: it obtains to swing panel seat and accelerate with starting acceleration from initial position and is spent to zero needle gage position
First duration executes step S2.
Wherein, it should be noted that in sewing machine, the movement of the speed and feed regulator that swing panel seat is positively correlated:
The speed for swinging panel seat becomes larger, and the speed of feed regulator is also opposite to be increased, and the speed for swinging panel seat becomes smaller, feed regulator
Speed is also opposite to be reduced.Therefore, the movement velocity for swinging panel seat is controlled in the present embodiment, i.e., accordingly has adjusted feed regulator
Movement velocity, the present embodiment do momentum calculating with the speed for swinging panel seat.In addition, moving to positive needle gage limit position when swinging panel seat
When setting, feed regulator just moves to positive needle gage stop point and bidding quotation stud is hit；Negative needle gage pole is moved to when swinging panel seat
When extreme position, feed regulator just moves to negative needle gage stop point and bidding quotation stud is hit.
Wherein, when initial position is positive needle gage extreme position, final position is accordingly negative needle gage extreme position；When initial
Position be negative needle gage extreme position when, final position is accordingly positive needle gage extreme position.No matter the direction of motion of panel seat is swung such as
What, initial position setting in motion initial time can be greater than 0 starting acceleration setting in motion.
Wherein, it should be noted that swing panel seat by a motion process of initial position one-way movement position to terminal
(negative needle gage extreme position is moved to through zero needle gage position by positive needle gage extreme position, or by negative needle gage extreme position through zero needle gage
Position moves to positive needle gage extreme position) in, swing panel seat moved between positive needle gage and zero needle gage displacement, zero needle gage transport
The dynamic displacement moved between negative needle gage is identical.In addition, swinging the needle gage variation of panel seat, total displacement (total angle) meeting of movement
It changes, the positive needle gage extreme position, negative needle gage extreme position and needle gage for swinging panel seat have corresponding relationship.For example,
Needle gage is 5, and 50 ° are displaced between positive needle gage and zero needle gage, and 50 °, 100 ° of total displacement are displaced between zero needle gage and negative needle gage；Needle gage is
2.5, it is displaced 30 ° between positive needle gage and zero needle gage, 30 °, 60 ° of total displacement are displaced between zero needle gage and negative needle gage.
Wherein, for the determination of the first duration, the sensor group in the timing module in control system can specifically be passed through
Part and timing unit realize that sensor module can be set on swinging panel seat.Timing module is detected according to sensor
Timing is carried out at the time of when at the time of when oscillating deck seat being located at initial position and positioned at zero needle gage position.
Step S2: judging whether first duration is greater than preset duration threshold value, if so, executing step S3.Wherein, described
Preset duration threshold value moves to zero by initial position in the same direction according to default needle gage with the starting acceleration for the swing panel seat
The duration that needle gage position is spent.
Wherein, refer to that the initial position for swinging panel seat movement is positive needle gage extreme position in the same direction, by the positive needle gage limit
Position is moved to negative needle gage extreme position；The needle gage extreme position alternatively, initial position is negative, from negative needle gage extreme position to just
The movement of needle gage extreme position.
Wherein, it in sewing machine, swings panel seat connection and backstitches electromagnet, feed regulator is connected by link mechanism to be resetted
Spring.During swing panel seat is moved by positive needle gage extreme position towards negative needle gage extreme position, reset tension spring generates and pendulum
The movable plate seat direction of motion opposite pulling force is identical as the panel seat direction of motion is swung to panel seat application is swung when backstitching electromagnet starting
Pulling force；Swing panel seat by negative needle gage extreme position towards positive needle gage extreme position movement during, reset tension spring generate with
The identical pulling force of the panel seat direction of motion is swung, applies and swing the panel seat direction of motion phase when backstitching electromagnet starting to swing panel seat
Anti- pulling force.The voltage of electromagnet is backstitched by adjusting, can accordingly adjust and backstitch electromagnet to the pulling force size for swinging panel seat,
The reset tension spring that panel seat is subject to and the resultant force size for backstitching electromagnet are swung to adjust, with the corresponding acceleration for adjusting swing panel seat
Degree.
Wherein, it is backstitching process or is backstitching in reseting procedure, swinging panel seat by initial position and move to the total of final position
Duration is usually minimum, measures in milliseconds, and typically not greater than 1 second.Therefore, each accelerated motion section for swinging panel seat can directly be considered as
It is uniformly accelerated motion section, each retarded motion section can be considered as uniformly retarded motion section.Add for swinging panel seat from initial position
Speed moves to the process of zero needle gage position, can be considered as and carry out uniformly accelerated motion always with starting acceleration.Certainly, by adjusting
The voltage of electromagnet is backstitched, can also make the movement of oscillating deck seat is accurately uniformly accelerated motion or uniformly retarded motion.
Wherein, the preset duration threshold value be the swing panel seat with the starting acceleration according to default needle gage in the same direction by
Initial position moves to the duration that zero needle gage position is spent.The starting acceleration of one swing panel seat is determined with the direction of motion
Afterwards, preset duration threshold value is i.e. corresponding determines, corresponding relationship can prestore in the controls.
Specifically as shown in Figure 1, it indicates to swing panel seat in needle gage difference, moved in the same direction with identical starting acceleration a4
When Velocity-time figure.Wherein, when needle gage is default needle gage, panel seat is swung by corresponding initial position and moves to zero needle gage
The when a length of TA spent when position0, TA0It as swings corresponding when panel seat is moved under the direction of motion with starting acceleration a4
Preset duration threshold value.Under default needle gage, when continuing to move to final position by zero needle gage position, the end speed for swinging panel seat reaches
To VA1, speed VA1The datum quantity that can be used as a measurement noise, in speed VA1When the corresponding noise generated still can be with
Receive.When the end speed for swinging panel seat is greater than VA1When, especially when the end speed for swinging panel seat is more than VA1When more, feeding
The moving velocity degree of adjuster is also relatively bigger, and feed regulator and the loss of momentum of bidding quotation stud collision process are opposite bigger,
Noise in environment more allows staff to be difficult to receive；When the end speed for swinging panel seat is less than VA1When, the movement of feed regulator
End speed is also relatively small, and the loss of momentum of feed regulator and bidding quotation stud collision process is relatively small, and noise is relatively small,
It does not need to do midway deceleration processing.
As shown in Figure 1, swinging the first duration TC spent when panel seat moves to zero needle gage position from corresponding initial position0
< preset duration threshold value TA0, then needle gage (2 × 1/2 × a4 × TC of panel seat at this time is swung02) be less than default needle gage (2 × 1/2 ×
a4×TA02), if not adjusting the acceleration a4 of oscillating deck seat at this time, the end speed (VC of panel seat is swung1=a4 × TC1) can be small
End speed (VA under default needle gage1=a4 × TA1), the noise of generation, which will not be greater than, swings panel seat VA1When feed regulator
The noise generated is hit with bidding quotation stud.
As shown in Figure 1, swinging the first duration TB spent when panel seat moves to zero needle gage position from corresponding initial position0
> preset duration threshold value TA0, then needle gage (2 × 1/2 × a4 × TB of panel seat at this time is swung02) be greater than default needle gage (2 × 1/2 ×
a4×TA02), if not adjusting the acceleration a4 of oscillating deck seat at this time, the end speed (VB of panel seat is swung1'=a × TB1) can be big
End speed (VA under default needle gage1=a × TA1), feed regulator and bidding quotation stud hit the noise generated also relatively
Greatly.
Step S3: adjustment backstitches the pulling force of electromagnet, executes the swing panel seat to the second duration of retarded motion, by original
Step S4, wherein the electromagnet that backstitches is connected to the swing panel seat.
As shown in Figure 1, the first duration spent when swinging panel seat and moving to zero needle gage position from corresponding initial position
TB0> preset duration threshold value TA0In the case where, by adjusting the pulling force for backstitching electromagnet to switch the acceleration and deceleration feelings for swinging panel seat
Condition makes swing panel seat become the state of acceleration < 0 from the state of the acceleration > 0 before zero needle gage position, carries out one section and subtract
Speed movement.
Step S4: the control swing panel seat continues by original to moving to final position, and the acceleration in motion process
No more than the starting acceleration.
The the first duration TB spent when swinging panel seat and moving to zero needle gage position from initial position0> preset duration threshold value
TA0In the case where, when swing panel seat is moved from initial position to final position, an overall process for swinging panel seat movement includes:
First stage: the first duration-second stage is accelerated between zero needle gage position in initial position: being subtracted by zero needle gage position
Speed movement the second duration-phase III: continue to move to final position.
Wherein, (the panel seat mistake dynamic through the subsequent reforwarding of the second duration of retarded motion is swung for the phase III in i.e. step S4
Journey), acceleration is less than starting acceleration, and starting acceleration is greater than 0, then the stage may be that progress acceleration is greater than 0 and little
In the accelerated motion of starting acceleration, it is also possible to retarded motion of the acceleration less than 0 is carried out, as long as terminal position can be moved to
It sets.
Specifically, identical with needle gage with reference to Fig. 1, starting acceleration is identical, the direction of motion is identical and carries out even acceleration always
The end speed VB of the swing panel seat of movement1' compare, due to the presence in this decelerating phase of second stage, move to final position
When, the practical end speed for swinging panel seat is centainly less than VB1' or even the end speed may be less than VA1, as shown in Figure 1, even if should
End speed is greater than VA1VB1, but it is not more than VB1', thus compared with the existing technology in even acceleration always under needle gage
The noise generated in the case where movement, the present embodiment opposite can reduce noise, reduce more than VA1Amount.
As it can be seen that in the present embodiment, by the monitoring to panel seat movement duration is swung, the reality for determining and swinging panel seat can be corresponded to
Border needle gage situation, and deceleration processing is carried out in the movement midway for swinging panel seat when needle gage is larger, so that swing panel seat is moved to end
End speed when point position reduces compared with the prior art, the corresponding end speed reduced when feed regulator is collided with bidding quotation stud
It spends, the loss of momentum in collision process becomes smaller, and impact severity reduces, and reduces the noise of generation, can not influence to backstitch response
Finally realizing while speed reduces the effect for backstitching noise, is conducive to extend making for the parts such as feed regulator and bidding quotation stud
Use the service life.
Optionally, in the step S4, the control swing panel seat continues specific to final position is moved to by original
Include:
The pulling force for backstitching electromagnet described in adjustment again, accelerates the swing panel seat to the final position.
It is left after undergoing second stage between zero needle gage position to terminal position due in the phase III, needing to complete
Displacement, carry out retarded motion always in the phase III, speed may be decreased to less than 0 and lead to swing panel seat counter motion, and
The time that phase III spends may be relatively long, thus is difficult to control.By the phase III by the way of accelerating, dropping
It can solve problem above while low noise.
It is further, described to accelerate the swing panel seat to the final position in the step S4 specifically:
Accelerate the swing panel seat to the final position with identical as the starting acceleration.
The starting acceleration of the acceleration and swing panel seat of phase III in the first stage is set to be set as identical value, convenient for pendulum
The end speed of movable plate seat and the calculating for spending the parameters such as time.
Further, before step S1 further include:
After the initial tensile force that the swing panel seat is subject to is enlarged to default pulling force, the swing panel seat is controlled from initial bit
Setting in motion is set to move with the starting acceleration；
In the step S4, the end speed swung when panel seat moves to final position is less than initial end speed, wherein
The initial end speed be the swing panel seat according to the corresponding initial acceleration of the initial tensile force according to same needle away from the same direction
Initial terminal velocity when moving to final position from initial position.
Wherein, initial tensile force is to swing the panel seat pulling force that is subject to originally, by it by backstitching electromagnet and reset
The adjustment of spring is enlarged to default pulling force, make to swing panel seat using this preset pulling force corresponding acceleration as actual starting plus
Speed is moved, and then carries out step S1 again to step S4.
Specifically as shown in Fig. 2, (that is, displacement and the line B ' of the area representative that line B and t axis surround in the identical situation of needle gage
It is identical as the displacement that area that t axis surrounds represents), when the starting acceleration that swings panel seat has been determined, (line B is corresponding at 0 moment
Acceleration) greater than after initial acceleration (acceleration of line B '), the deceleration that second stage is carried out for needing to be implemented step S3 is transported
Dynamic swing panel seat can shorten and swing the time needed for panel seat has moved the needle gage.Meanwhile in step s 4, using originally
The corresponding initial end speed VB of initial tensile force2' as referring to the acceleration situation for swinging panel seat is controlled, make actual end speed
Less than VB2 '.After carrying out increasing processing to initial tensile force in the prior art, compared with the prior art with the even acceleration of initial tensile force
The case where moving to final position can reduce the shock momentum of bidding quotation stud and feed regulator, backstitch noise reduction to reach
Requirement.
Further, between the step S2 and the step S3 further include:
Step S21: determine the swing panel seat according to the corresponding initial acceleration of the initial tensile force according to same needle away from
The default total duration in final position is moved to from initial position in the same direction and calculates third duration, and when third is a length of described default
Total duration subtracts the difference that first duration obtains, and executes step S22；
Step S22: institute is calculated in conjunction with acceleration situation of the swing panel seat between zero needle gage position and final position
The second duration is stated, the swing panel seat a length of third duration when always moving between zero needle gage and final position is made.
As shown in Fig. 2, (that is, the displacement for the area representative that line B and t axis surround and line B ' and t axis in the identical situation of needle gage
The displacement that the area surrounded represents is identical), the starting acceleration due to swinging panel seat is greater than the initial acceleration under initial tensile force,
The deceleration and the acceleration of phase III for carrying out second stage, always may be implemented in total duration (TB2) reduce in identical situation
Swing the end speed (VB of panel seat2' become VB2).If measuring feed regulator momentum change to swing the momentum change of panel seat, move
Amount is by △ P1=M × VB2' (M be system inertia quality) be reduced to △ P2=M × VB2。
Specifically, since needle gage determines that is, total displacement X is known, and initial acceleration a0 is also known, according to displacement
Formula X=1/2 × a0 × TB22 can determine default total duration TB2.Third duration △ t3=TB is calculated again2-TB0(when first
Long TB0Know in step sl).In turn, according to known electromagnet and the reset tension spring of backstitching to the active force for swinging panel seat
Situation can determine the acceleration a2 (less than 0) and the acceleration a3 of phase III (being greater than 0) of second stage, the second duration △
T2=TB3-TB0, then according to displacement formula:
X × 1/2=VB0×△t2+1/2×a2×△t22+(VB0+a2×△t2)×(△t3-△t2)+1/2×a3×
(△ t3- △ t2) 2, can obtain unique unknown quantity △ t2.
The total duration that the present embodiment can guarantee to swing panel seat is with initial tensile force uniformly accelerated motion same needle away from corresponding
Default total duration, to reduce the influence to other links in backstitching, while can reduce noise.
In another specific embodiment, described to accelerate the swing panel seat to the end in the step S4
Point position specifically:
Make the swing panel seat with the second acceleration movement position to terminal, and the swing panel seat is made to move to terminal position
End speed when setting no more than the swing panel seat with the starting acceleration according to corresponding default needle gage in the same direction by initial bit
Set the end speed for moving to final position.
In the present embodiment, as shown in Figure 1, it finally makes the end speed VB of swing panel seat1It is adjusted to be less than VA1, so as to lean on
Guarantee noise in acceptable range.
Based on any of the above embodiments, the pulling force that electromagnet is backstitched described in the adjustment specifically includes: switching institute
State the open/close states for backstitching electromagnet.
In the present embodiment, panel seat is swung in the motion process backstitched, the voltage for backstitching electromagnet can be without
It adjusts, if backstitching electromagnet unlatching, a voltage is kept to work, respectively open in section that voltage value can be in this process
It is same.When switching swings the acceleration and deceleration situation of panel seat, the voltage value size for backstitching electromagnet is not adjusted repeatedly, is led to
The open/close states realization that switching backstitches electromagnet is crossed, i.e., the electromagnet that backstitches of starting is become into closed state or falling closing
Seam electromagnet becomes starting state, the swing panel seat of accelerated motion is accordingly become retarded motion or by the swing of retarded motion
Panel seat becomes accelerating, and convenient for control, is conducive to improve working efficiency.When backstitching electromagnet starting, electromagnet pair is backstitched
The pulling force for swinging panel seat is greater than synchronization reset tension spring to the pulling force for swinging panel seat.
It is specific as shown in Figure 1, swinging panel seat by positive needle for needing to undergo the swing panel seat for accelerating, slowing down, further accelerating
When moving away from extreme position to negative needle gage extreme position, the stress and movement for swinging panel seat include: the first stage: backstitching electromagnet
For open state, accelerated motion-second stage in the case where backstitching electromagnet and reset tension spring collective effect: backstitches electromagnet and be switched to
Closed state simultaneously keeps the state, the second duration of retarded motion-phase III under the action of reset tension spring: backstitches electromagnet and cuts
It is changed to open state and keeps the state, accelerated in the case where backstitching electromagnet and reset tension spring collective effect；Swinging panel seat
When moving from negative needle gage extreme position to positive needle gage extreme position, the movement for swinging panel seat includes: the first stage: backstitching electromagnet
It is in off state, accelerated motion-second stage under reset tension spring effect: backstitching electromagnet and be switched to open state and keep being somebody's turn to do
State in reset tension spring and backstitches the second duration of retarded motion-phase III under electromagnet collective effect: backstitching electromagnet switching
It is in off state and is kept the state, is accelerated under reset tension spring effect.
In addition to above-mentioned control method, the present invention also provides one kind to backstitch control system, specifically can be used to implement above
Control method in any embodiment.The control system specifically includes:
Timing module is accelerated with starting acceleration to zero needle gage position institute for obtaining swing panel seat from initial position
The first duration spent drives judgment module；
The judgment module, for judging whether first duration is greater than preset duration threshold value, if so, the first control of driving
Molding block, wherein the preset duration threshold value be the swing panel seat with the starting acceleration according to default needle gage in the same direction by
Initial position moves to the duration that zero needle gage position is spent；
First control module transports the swing panel seat to slowing down by original for adjusting the pulling force for backstitching electromagnet
Dynamic second duration, drives the second control module, wherein the electromagnet that backstitches is connected to the swing panel seat；
Second control module continues by original to moving to final position for controlling the swing panel seat, and moves
Acceleration in the process is not more than the starting acceleration.
Specifically, the timing module includes the sensing that zero needle gage position whether is moved to for detecting the swing panel seat
Device assembly, according to the signal timing of the sensor module.
More specifically, the sensor module includes Hall sensor and/or photoelectric sensor.
Conventional sewing machine in compared with the prior art backstitches the sensor group increased newly in control system sewing machine using this
Part, sensor module can specifically be fixed on existing backstitch near component.More specifically, sensor stand is fixed on sewing machine
On bottom plate, Hall sensor is fixed on sensor stand, and magnet, which is fixed on, to be swung on panel seat.Panel seat is swung in zero needle gage position
When, Hall sensor can detecte magnet signal, while timing module timing stops obtaining the first duration.Due to having zero needle
Away from detection sensor, control more stable.Certainly, Hall sensor and magnet positions detection mode can use Photoelectric Detection position
The substitution such as sensor.It wherein, can be by the sensing added for swinging initial time of the panel seat from initial position setting in motion
Device assembly is realized, the set-up mode of the above Hall sensor is specifically referred to；It can also be according to backstitching electromagnet or sewing machine
The operating condition of middle other component is determined, independent of the sensor module added.
In addition to above-mentioned control method and system, the present invention also provides a kind of sewing machine, including sewing component and control is backstitched
System processed, be specifically as follows in any of the above embodiment it is described backstitch control system, beneficial effect can accordingly with reference to
Upper each embodiment.Refer to the prior art for the other component of the sewing machine, and repeats no more herein.
A kind of concrete application process of sewing machine provided by the present invention is as follows, is tuning up the stress for swinging panel seat to tune up
After initial acceleration to starting acceleration, (1) is entered step:
(1) it is switched on, enters step (2)；
(2) control system is run, and enters step (3)；
(3) judge whether to backstitch, if so, entering step (4), otherwise enter step (8)；
(4) control system control backstitches electromagnet energization, swings panel seat and starts to transport to negative needle gage from positive needle gage extreme position
It is dynamic, while control system starts timing, control system terminates timing while the sensor in zero needle gage position receives signal,
Time interval is the first duration, judges whether the first duration is greater than corresponding preset duration threshold value, if so, (5) are entered step, it is no
Then, (7) are entered step；
(5) control system control backstitches electromagnet and closes regular hour (corresponding second duration), backstitches mechanism and starts
Reduction of speed backstitches electromagnet later and continues to be powered actuation on earth, after moving to negative needle gage extreme position, backstitches electromagnet power-off,
Under the action of reset tension spring, swings panel seat and start to be moved from negative needle gage extreme position to positive needle gage extreme position, enter step
(6)；
The sensor of (6) zero needle gage positions receives signal, backstitches electromagnet and opens certain time (when corresponding second
It is long), it backstitches mechanism and starts reduction of speed, then, backstitch electromagnet and close until swinging panel seat returns to positive needle gage extreme position.
(7) it backstitches electromagnet and continues to be powered actuation on earth, after moving to negative needle gage extreme position, backstitch electromagnet power-off,
Under the action of reset tension spring, swings panel seat and start to move reset from negative needle gage extreme position to positive needle gage extreme position.
(8) judge whether to shut down, if so, then main shaft stalling is shut down, otherwise, enter step (2).
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
It backstitches control method to provided by the present invention above, backstitch control system and sewing machine is described in detail.
Used herein a specific example illustrates the principle and implementation of the invention, and the explanation of above embodiments is only used
In facilitating the understanding of the method and its core concept of the invention.It should be pointed out that for those skilled in the art,
Without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention, these improvement and modification
It falls into the protection scope of the claims in the present invention.
Claims (10)
1. one kind backstitches control method characterized by comprising
Step S1: obtain swing panel seat from initial position with starting acceleration accelerate to zero needle gage position spent first
Duration executes step S2；
Step S2: judging whether first duration is greater than preset duration threshold value, if so, executing step S3, wherein described default
Duration threshold value moves to zero needle gage by initial position in the same direction according to default needle gage with the starting acceleration for the swing panel seat
The duration that position is spent；
Step S3: adjustment backstitches the pulling force of electromagnet, and the swing panel seat is made, to the second duration of retarded motion, to execute step by original
S4, wherein the electromagnet that backstitches is connected to the swing panel seat；
Step S4: the control swing panel seat continues by original to moving to final position, and the acceleration in motion process is little
In the starting acceleration.
2. according to claim 1 backstitch control method, which is characterized in that in the step S4, the control pendulum
Movable plate seat continues to specifically include by original to final position is moved to:
The pulling force for backstitching electromagnet described in adjustment again, accelerates the swing panel seat to the final position.
3. according to claim 2 backstitch control method, which is characterized in that described to make the swing in the step S4
Panel seat is accelerated to the final position specifically:
Accelerate the swing panel seat to the final position with identical as the starting acceleration.
4. according to any one of claims 1 to 3 backstitch control method, which is characterized in that also wrapped before the step S1
It includes:
After the initial tensile force that the swing panel seat is subject to is enlarged to default pulling force, controls the swing panel seat and opened from initial position
Movement begin with starting acceleration movement；
In the step S4, the end speed swung when panel seat moves to final position is less than initial end speed, wherein described
Initial end speed be the swing panel seat according to the corresponding initial acceleration of the initial tensile force according to same needle away from the same direction from first
Beginning position moves to initial terminal velocity when final position.
5. according to claim 4 backstitch control method, which is characterized in that between the step S2 and the step S3 also
Include:
Step S21: determine the swing panel seat according to the corresponding initial acceleration of the initial tensile force according to same needle away from the same direction
The default total duration in final position is moved to from initial position and calculates third duration, and when third is a length of described when presetting total
It is long to subtract the difference that first duration obtains, execute step S22；
Step S22: described the is calculated in conjunction with the acceleration situation of the swing panel seat between zero needle gage position and final position
Two durations make the swing panel seat a length of third duration when always moving between zero needle gage and final position.
6. according to claim 2 backstitch control method, which is characterized in that described to make the swing in the step S4
Panel seat is accelerated to the final position specifically:
When making the swing panel seat with the second acceleration movement position to terminal, and the swing panel seat being made to move to final position
End speed transported in the same direction by initial position according to corresponding default needle gage with the starting acceleration no more than the swing panel seat
The end speed of dynamic position to terminal.
7. according to any one of claims 1 to 3 backstitch control method, which is characterized in that backstitch electricity described in the adjustment
The pulling force of magnet specifically includes:
The open/close states of electromagnet are backstitched described in switching.
8. one kind backstitches control system characterized by comprising
Timing module is accelerated to zero needle gage position with starting acceleration from initial position for acquisition swing panel seat and is spent
The first duration, drive judgment module；
The judgment module, for judging whether first duration is greater than preset duration threshold value, if so, driving the first control mould
Block, wherein the preset duration threshold value be the swing panel seat with the starting acceleration according to default needle gage in the same direction by initial
Position moves to the duration that zero needle gage position is spent；
First control module makes the swing panel seat by original to retarded motion for adjusting the pulling force for backstitching electromagnet
Two durations drive the second control module, wherein the electromagnet that backstitches is connected to the swing panel seat；
Second control module continues by original for controlling the swing panel seat to moving to final position, and motion process
In acceleration be not more than the starting acceleration.
9. according to claim 8 backstitch control system, which is characterized in that the timing module includes described for detecting
The sensor module whether panel seat moves to zero needle gage position is swung, according to the signal timing of the sensor module.
10. a kind of sewing machine, including sewing component, which is characterized in that further include backstitching control system described in claim 8 or 9
System.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910666515.8A CN110295460B (en) | 2019-07-23 | 2019-07-23 | Backstitch control method, backstitch control system and sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910666515.8A CN110295460B (en) | 2019-07-23 | 2019-07-23 | Backstitch control method, backstitch control system and sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110295460A true CN110295460A (en) | 2019-10-01 |
| CN110295460B CN110295460B (en) | 2021-04-27 |
Family
ID=68031725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910666515.8A Active CN110295460B (en) | 2019-07-23 | 2019-07-23 | Backstitch control method, backstitch control system and sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110295460B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113890431A (en) * | 2021-09-30 | 2022-01-04 | 浙江众邦机电科技有限公司 | Cloth feeding motor control method and system for sewing machine, sewing machine and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06292778A (en) * | 1993-04-08 | 1994-10-21 | Brother Ind Ltd | Sewing machine |
| JPH0871286A (en) * | 1994-09-08 | 1996-03-19 | Brother Ind Ltd | Silencing structure for sewing machine |
| CN1399026A (en) * | 2001-07-19 | 2003-02-26 | 重机公司 | Needle-feeding sewing machine |
| CN1460739A (en) * | 2002-03-21 | 2003-12-10 | 日星产业缝裁株式会社 | Apparatus and method for controlling feed and direction in sewing machine |
| CN103510295A (en) * | 2013-09-28 | 2014-01-15 | 新杰克缝纫机股份有限公司 | Sewing machine reverse sewing buffer gear |
-
2019
- 2019-07-23 CN CN201910666515.8A patent/CN110295460B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06292778A (en) * | 1993-04-08 | 1994-10-21 | Brother Ind Ltd | Sewing machine |
| JPH0871286A (en) * | 1994-09-08 | 1996-03-19 | Brother Ind Ltd | Silencing structure for sewing machine |
| CN1399026A (en) * | 2001-07-19 | 2003-02-26 | 重机公司 | Needle-feeding sewing machine |
| CN1460739A (en) * | 2002-03-21 | 2003-12-10 | 日星产业缝裁株式会社 | Apparatus and method for controlling feed and direction in sewing machine |
| CN103510295A (en) * | 2013-09-28 | 2014-01-15 | 新杰克缝纫机股份有限公司 | Sewing machine reverse sewing buffer gear |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113890431A (en) * | 2021-09-30 | 2022-01-04 | 浙江众邦机电科技有限公司 | Cloth feeding motor control method and system for sewing machine, sewing machine and storage medium |
| CN113890431B (en) * | 2021-09-30 | 2024-05-10 | 浙江众邦机电科技有限公司 | Method and system for controlling cloth feeding motor of sewing machine, sewing machine and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110295460B (en) | 2021-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103925092B (en) | Vehicle console device | |
| CN110295460A (en) | It backstitches control method, backstitch control system and sewing machine | |
| CN1239766C (en) | Weft yarn deflection brake and method for controlling weft insertion into weaving machine | |
| KR100688407B1 (en) | Sewing machine and recording medium on which pulse motor control program is recorded | |
| JP2008011971A (en) | Sewing machine | |
| CN102296411B (en) | Apparatus for determining status of weft insertion and weft insertion controller in jet loom | |
| CN102926118A (en) | Automatic bottom starting control system for flat knitting machine | |
| JP2001173468A (en) | Control method for solenoid valve device for internal combustion engine | |
| JP2006299443A (en) | Controlling device of moving member of loom | |
| JPH03950A (en) | Mixture feed device for internal combustion engine | |
| JPH05507980A (en) | Solenoid operation control method and device | |
| CN203212760U (en) | Automatic bottom-starting knitting control system of flat knitting machine | |
| US6776112B2 (en) | Sewing machine comprising a device for steering towards the end of a seam | |
| CN109023746B (en) | Method and device for adjusting stitch length of flat sewing machine | |
| JP5366730B2 (en) | Combination weigher and driving method of hopper gate in combination weigher | |
| JPS6359715B2 (en) | ||
| CN1399022A (en) | Control method and system for weft braking mechanism capable of regulating mechanical tension of yarn in loom automatically | |
| US6341569B2 (en) | Sewing machine having means for estimating mass of sewing material | |
| CN110165949A (en) | A kind of continuous vegetable transfer machine system motor open-loop control method | |
| CN1570246A (en) | Solenoid for realizing sewing operation and its control method | |
| CN114960800A (en) | Deflection adjusting system and method | |
| JP2006211749A (en) | Speed controller for stepping motor and its speed control method | |
| CN101298715A (en) | Digital accurate follow-up control method of rapier loom electric twisted edge | |
| CN110221209B (en) | Durability test method for motor with periodic step load | |
| KR20120054529A (en) | Sewing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 318000 no.1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |
|
| CP03 | Change of name, title or address |