CN108866846A - A kind of sewing machine trimming control method and mechanism and overedger - Google Patents
A kind of sewing machine trimming control method and mechanism and overedger Download PDFInfo
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- CN108866846A CN108866846A CN201810602769.9A CN201810602769A CN108866846A CN 108866846 A CN108866846 A CN 108866846A CN 201810602769 A CN201810602769 A CN 201810602769A CN 108866846 A CN108866846 A CN 108866846A
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
Abstract
The present invention provides a kind of sewing machine trimming control method, has long the end of a thread trimming mode, short-term head trimming mode and short-term head trimming compensation model；Under long the end of a thread trimming mode：When detection inductor has detected that sewing edge passes through, electronic control module starts timing and timing is completely preset in trimming after long the end of a thread standard trimming time M in electronic control module；Under short-term head trimming mode：When detecting inductor and having detected that sewing edge passes through, trimming at once；Under short-term head trimming compensation model：Electronic control module is compensated according to the current sewing parameter of sewing machine, by the quasi- trimming time T of the short-term leader being preset in electronic control module as the practical trimming time X of short-term head；When detection inductor has detected that sewing edge passes through, electronic control module starts timing and trimming after the practical trimming time X of short-term head is expired in timing.The application can be realized the effect of the short effect of trimming the end of a thread and trimming the end of a thread length, meet the needs of a variety of sewing technologies and specific sewing technology.
Description
Technical field
The present invention relates to a kind of sewing machine trimming control methods.
The invention further relates to a kind of sewing machine trimming control mechanisms for realizing above-mentioned sewing machine trimming control method.
The present invention further relate to it is a kind of include above-mentioned sewing machine trimming control mechanism overedger.
Background technique
Currently, overedger when sewing sewing, can be formed with front pigtail, the back edge in sewing at the leading edge of sewing
Place is formed with rear line pigtail, overedger trimming front pigtail and trimming short-term pigtail at the end of sewing when playing seam is needed, to improve
Sewing quality.It is divided into side suction trimming and chopper for trimming the thread cutting mechanism of front pigtail and rear line pigtail in existing computer overedger
Two kinds of trimming, such as a kind of compound money disclosed in Chinese utility model patent specification application No. is 201521073051.3
Overedger computer cutting facility knife group.It needs gas source to cooperate in general, trimming is inhaled in side, line pigtail is sucked in the edge of a knife, is passed through
Line pigtail is cut in the perseveration that cutter is inhaled in side；The structure that trimming is inhaled in such side is able to achieve the effect of front and back short-term head, but to work
Factory's configuration requirement is higher, and corresponding production cost is also higher.Chopper trimming needs to configure inductor, passes through inductor by sewing
Position after, control trimming driving source (such as electromagnet or cylinder) movement after preset time T is expired in the automatically controlled timing of overedger,
Realize trimming；The structure of such chopper trimming can be realized low cost, but its there is also following problems simultaneously：When by actually sewing
The influence of the revolving speed of motor, sewing needle away from, worker's manual operation gesture etc., so that required trimming time and preset time
T has in advance or delays, and is easy to cause trimming length unstable, cannot achieve the short-term head effect of low cost.
In addition, existing computer overedger trimming mode is single, the trimming effect and shakiness of short-term head can only be realized
Fixed, still, some specific sewing technologies need long the end of a thread, do not need short-term head instead, therefore existing trimming mode cannot expire
The demand of the current specific sewing technology of foot.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of sewing machine trimming controlling parties
Method is capable of providing a variety of trimming modes.
To achieve the above object, the present invention provides a kind of sewing machine trimming control method, includes the following steps：
S1, setting operation panel and the detection inductor for detecting sewing edge, the operation panel and detection sense
Device is answered all to be connected with the electronic control module of sewing machine；
S2, any one trimming mode in a variety of trimming modes, the trimming mode are selected by the operation panel
Including long the end of a thread trimming mode, short-term head trimming mode and short-term head trimming compensation model；
Under long the end of a thread trimming mode：When sewing machine is sewed, when detection inductor has detected that sewing edge passes through
When, electronic control module starts timing and timing be completely preset in long the end of a thread standard trimming time M in electronic control module after control sewing machine
In thread cutting mechanism execute trimming action；
Under the short-term head trimming mode：When sewing machine is sewed, when detection inductor has detected that sewing edge passes through
When, the thread cutting mechanism in electric control module controls sewing machine executes trimming action；
Under the short-term head trimming compensation model：When sewing machine is sewed, the electronic control module sewing current according to sewing machine
The practical trimming time X of parameter compensation calculation short-term head；When detection inductor has detected that sewing edge passes through, electronic control module is opened
Beginning timing and timing expire the thread cutting mechanism controlled in sewing machine after the practical trimming time X of short-term head and execute trimming action.
Preferably, the detection inductor includes the first inductor and the second inductor, first inductor, the second sense
The thread cutting mechanism of device and sewing machine is answered successively to arrange along the direction of sewing machine work feed forward from rear to preceding.
Further, long the end of a thread trimming mode includes the following steps：
A1, long the end of a thread standard trimming time M is previously provided in electronic control module；
A2, the first inductor of electric control module controls are opened；
A3, sewing machine sewing when, when the first inductor has detected that sewing edge passes through, electronic control module start timing,
And control thread cutting mechanism execution trimming action after long the end of a thread standard trimming time M is expired in timing.
Further, the short-term head trimming mode includes the following steps：
B1, the second inductor of electric control module controls are opened；
When B2, sewing machine sewing, when the second inductor has detected that sewing edge passes through, electronic control module controls seam at once
The thread cutting mechanism threaded in machine executes trimming action.
Further, the short-term head trimming compensation model includes the following steps：
C1, be previously provided in electronic control module short-term leader quasi- trimming time T, the first inductor and the second inductor it
Between spacing L1 and the second inductor and thread cutting mechanism between spacing L2, electronic control module obtains sewing from the second inductor
Place is transferred to the standard feeding time Y1 at thread cutting mechanism；
C2, the first inductor of electric control module controls and the second inductor are opened；
C3, sewing machine sewing when, the current sewing parameter of the sewing machine include current needle gage p, current rotating speed n and
Sewing is transferred to the time t at the second inductor from the first inductor, and the electronic control module calculates sewing from automatically
The practical feeding time Y2 being transferred at two inductors at thread cutting mechanism：
C4, compensation trimming time △ T is calculated：Δ T=| Y2-Y1 |；
C5, according to compensation trimming time △ T the quasi- trimming time T of the short-term leader is compensated into trimming practical for short-term head when
Between X：
As practical feeding time Y2>When standard feeding time Y1, the electronic control module judges that trimming postpones, and short-term head is practical
Trimming time X=short-term leader quasi- trimming time T+ compensates trimming time △ T；
As practical feeding time Y2<When standard feeding time Y1, the electronic control module judges that trimming shifts to an earlier date, and short-term head is practical
Trimming time X=short-term leader quasi- trimming time T- compensates trimming time △ T；
When C6, sewing machine sewing, when the first inductor or the second inductor have detected that sewing edge passes through, the electricity
Control module starts timing and timing is expired the thread cutting mechanism execution trimming controlled in sewing machine after the practical trimming time X of short-term head and moved
Make.
Further, the short-term head trimming compensation model includes the following steps：
D1, the quasi- trimming time T of short-term leader is previously provided in electronic control module, electronic control module obtains sewing from the first sense
Answer the standard feeding time Z1 being transferred at the second inductor at device；
D2, the first inductor of electric control module controls and the second inductor are opened；
When D3, sewing machine sewing, the current sewing parameter of the sewing machine includes that sewing is transferred from the first inductor
Time t to the second inductor, time t are that sewing is transferred to actually sending at the second inductor from the first inductor
Expect time Z2；
D4, compensation trimming time △ T is calculated：Δ T=| Z2-Z1 |=| t-Z1 |；
D5, according to compensation trimming time △ T the quasi- trimming time T of the short-term leader is compensated into trimming practical for short-term head when
Between X：
As practical feeding time Z2>When standard feeding time Z1, the electronic control module judges that trimming postpones, and short-term head is practical
Trimming time X=short-term leader quasi- trimming time T+ compensates trimming time △ T；
As practical feeding time Z2<When standard feeding time Z1, the electronic control module judges that trimming shifts to an earlier date, and short-term head is practical
Trimming time X=short-term leader quasi- trimming time T- compensates trimming time △ T；
When D6, sewing machine sewing, when the first inductor or the second inductor have detected that sewing edge passes through, the electricity
Control module starts timing and timing is expired the thread cutting mechanism execution trimming controlled in sewing machine after the practical trimming time X of short-term head and moved
Make.
Preferably, the maximum speed that sewing machine actual speed accelerates to setting is also previously provided in the electronic control module
Prejudge time Ta；In the step C3, when electronic control module judges that sewing crosses the second inductor, the current rotating speed n of sewing machine<Institute
When stating the maximum speed of setting, then the compensation trimming time △ T that electronic control module calculates is：Δ T=| Y2-Y1 |-Ta；Alternatively, institute
It states in step D3, when electronic control module judges that sewing crosses the second inductor, the current rotating speed n of sewing machine<The highest of the setting
When revolving speed, then the compensation trimming time △ T that electronic control module calculates is：Δ T=| t-Z1 |-Ta.
Further, the short-term head trimming compensation model includes the following steps：
F1, in the spacing being previously provided in electronic control module between sewing needle distance P, the second inductor and thread cutting mechanism
The signal processing delay time Tc of L2 and the second inductor；
F2, the second inductor of electric control module controls are opened；
When F3, sewing machine sewing, when sewing passes through the second inductor, the current rotating speed n of electronic control module acquisition sewing machine,
And starting timing, the practical trimming time X of short-term head is calculated as by electronic control module：X=L2/ (P*n)-Tc；To electronic control module timing
The thread cutting mechanism controlled in sewing machine after the full practical trimming time X of short-term head executes trimming action.
Further, first inductor is mounted on the seam platform of sewing machine, and second inductor is mounted on sewing
On the needle plate of machine, the thread cutting mechanism is chopper trimming component and the front side for being located at needle plate in sewing machine.
Preferably, second inductor is located in the left area of feeding tooth motion range on needle plate and neighbour is in cutting
Trimming stationary knife in line mechanism.
Preferably, first inductor and the second inductor all are used to detect the leading edge of sewing, and the sewing machine is cut
Line control method is formed in the preceding trimming control of front pigtail at sewing leading edge for thread cutting mechanism trimming.
The present invention also provides a kind of sewing machine trimming control mechanism, the sewing machine trimming control mechanism is for realizing as above
The sewing machine trimming control method, the sewing machine trimming control mechanism include incuding for detecting the detection at sewing edge
The electronic control module of device, operation panel, thread cutting mechanism and sewing machine, in the detection inductor, operation panel and thread cutting mechanism
Trimming driving source be all connected with electronic control module.
The present invention provides a kind of overedger again, and sewing machine trimming control machine as described above is equipped in the overedger
Structure.
As described above, sewing machine trimming control method of the present invention and mechanism and overedger, have below beneficial to effect
Fruit：
The application is capable of providing a variety of sewing modes, and then the short effect of trimming the end of a thread can be realized according to specific sewing technology
The effect of fruit and trimming the end of a thread length, and then meet the needs of current a variety of sewing technologies and specific sewing technology.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of sewing machine trimming control mechanism in the application.
Fig. 2 is the scheme of installation of the second inductor in Fig. 1.
Fig. 3 is the flow chart of sewing machine trimming control method embodiment one in the application.
Fig. 4 is the flow chart of sewing machine trimming control method embodiment two in the application.
Component label instructions
1 trimming stationary knife
2 first inductors
3 second inductors
4 third inductors
5 seam platforms
6 needle plates
7 needle plate cushion blocks
8 trimming switch blocks
9 the 4th inductors
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
It should be clear that structure, ratio, size etc. that this specification attached drawing is drawn, only to cooperate specification revealed interior
Hold, so that those skilled in the art understands and reads, is not intended to limit the invention enforceable qualifications, therefore does not have skill
Essential meaning in art, the modification of any structure, the change of proportionate relationship or the adjustment of size can be produced not influencing the present invention
Under raw effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents can cover.Together
When, cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, be merely convenient to chat
It states clearly, rather than to limit the scope of the invention, relativeness is altered or modified, and is changing technology without essence
It inside holds, when being also considered as the enforceable scope of the present invention.
In following embodiment, by the mobile direction definition of cloth feeding mechanism driving sewing is front direction when sewing, in sewing machine.
The application provides a kind of sewing machine trimming control method and the seam for realizing the sewing machine trimming control method
It threads machine trimming control mechanism, sewing machine trimming control method is mainly used for thread cutting mechanism trimming in sewing machine and is formed in sewing front
The preceding trimming control of front pigtail at edge.As shown in Figure 1, sewing machine trimming control mechanism includes the detection for detecting sewing edge
The electronic control module of inductor, operation panel, thread cutting mechanism and sewing machine, the thread cutting mechanism have trimming stationary knife 1, trimming
Moving knife and the trimming driving source of driving trimming moving knife movement, it is described to detect cutting in inductor, operation panel and thread cutting mechanism
Line driving source is all connected with electronic control module.In sewing process, stitched when detection inductor is never changed to by sewing covering
When material covers, the output signal for detecting inductor changes, and electronic control module judgement has the leading edge of sewing to pass through detection induction
Device；When detect inductor from by sewing covering change to do not covered by sewing when, the output signal for detecting inductor changes,
Electronic control module judgement has the back edge of sewing to pass through detection inductor；When the movement of electric control module controls trimming driving source, trimming
Moving knife and trimming stationary knife 1 are engaged, and thread cutting mechanism executes trimming action.
In the application, as shown in Figure 1, detection inductor includes for the first inductor 2 of preceding trimming control and the second sense
Answer device 3 and the third inductor 4 for the control of rear trimming, wherein the first inductor 2, the second inductor 3 and thread cutting mechanism
Direction along sewing machine work feed forward is successively arranged from rear to preceding, and third inductor 4 and thread cutting mechanism are along sewing machine work feed forward
Direction successively arrange from rear to preceding, and the sword of installation site neighbour trimming stationary knife 1 in thread cutting mechanism of third inductor 4
Mouth has certain distance between the two.Electronic control module judges to be according to the first inductor 2 and 3 feedback signal of the second inductor
The no leading edge for having sewing is by trimming control before the first inductor 2 and the second inductor 3, realization, and electronic control module is according to third
The feedback signal of inductor 4 is to determine whether trimming controls after having the back edge of sewing by third inductor 4, realizing.
Further, this application involves sewing machine trimming control method include the following steps：Step S1, operating surface is set
Plate and for detecting sewing edge detection inductor (as setting for preceding trimming control the first inductor 2 and second
Inductor 3), the operation panel and detection inductor are all connected with the electronic control module of sewing machine；Step S2, user passes through institute
It states operation panel and selects any one trimming mode in a variety of trimming modes, the trimming mode includes long the end of a thread trimming mould
Formula, short-term head trimming mode and short-term head trimming compensation model；It can be realized trimming the end of a thread length under long the end of a thread trimming mode
Effect under short-term head trimming mode and can realize the short effect of trimming the end of a thread under short-term head trimming compensation model, but short
The short better effect of trimming the end of a thread under the end of a thread trimming compensation model is stable, excellent.Below to the long line controlled for preceding trimming
Head trimming mode, short-term head trimming mode and the expansion narration of short-term head trimming compensation model.
One, long the end of a thread trimming mode
Under long the end of a thread trimming mode, the first inductor 2 is in the open state, and the second inductor 3 is in close state, preceding
Trimming control cuts the time based on the feedback signal of the first inductor 2.As shown in Figure 3 or Figure 4, long the end of a thread trimming mode packet
Include following steps：Step A1, long the end of a thread standard trimming time M is previously provided in electronic control module, long the end of a thread standard trimming
Time M is electronic control module with the feedback signal of the first inductor 2 to determine whether there is the leading edge of sewing to pass through the first inductor
2, and then the time that trimming moving knife is cut in thread cutting mechanism is controlled；Step A2, the first inductor of electric control module controls 2 open, the
Two inductors 3 are closed；Step A3, when sewing machine is sewed, when the first inductor 2 detects that the leading edge of sewing passes through, electricity
Control module starts timing and control thread cutting mechanism execution trimming action after long the end of a thread standard trimming time M is expired in timing, will stitch
Expect that the front pigtail at leading edge is cut, the long effect of trimming the end of a thread is realized, for special sewing technology.
Two, short-term head trimming mode
Under short-term head trimming mode, the second inductor 3 is in the open state, and preceding trimming control cuts the time with second
Based on the feedback signal of inductor 3.As shown in figure 4, short-term head trimming mode includes the following steps：Step B1, electronic control module control
Make the unlatching of the second inductor 3；Step B2, when sewing machine is sewed, when the second inductor 3 detects that the leading edge of sewing passes through
When, electronic control module controls the thread cutting mechanism in sewing machine at once and executes trimming action, and immediately execute preceding trimming cuts movement, will
Front pigtail at sewing leading edge is cut, and realizes the short effect of trimming the end of a thread.
Three, short-term head trimming compensation model mode one
Under short-term head trimming compensation model, the first inductor 2 is in the open state, and the second inductor 3 is in opening state
The time that cuts of state, the control of preceding trimming not only can be based on the feedback signal of the first inductor 2 but also can be with the anti-of the second inductor 3
Based on feedback signal.When to cut the time with the feedback signal of the first inductor 2 be main of current trimming control, involved in following step
Short-term leader quasi- trimming time T be from the first inductor 2 to have detected that sewing leading edge passes through before thread cutting mechanism executes
First standard trimming time T1 of trimming action；The time that cuts of current trimming control with the feedback signal of the second inductor 3 is
When main, quasi- trimming time T of short-term leader involved in following step is to have detected that sewing leading edge passes through from the second inductor 3
The second standard trimming time T2 of trimming action before thread cutting mechanism executes.In addition, under short-term head trimming compensation model, electricity
Control module according to the current sewing parameter of sewing machine, by the short-term leader being preset in electronic control module quasi- trimming time T it is (i.e. described
First standard trimming time T1 or the second standard trimming time T2) compensation is the practical trimming time X of short-term head, it cuts before Optimization Compensation
The time is cut when line；When detection inductor has detected that sewing edge passes through, electronic control module starts timing and timing is full short
The thread cutting mechanism controlled after the practical trimming time X of the end of a thread in sewing machine executes trimming action, realizes stable trimming line with this
Short effect.Below with regard to electronic control module by the feedback signal of the second inductor 3 come before controlling trimming cut the time for, it is right
Narration is unfolded in two preferred embodiments of short-term head trimming compensation model.
As shown in figure 3, short-term head trimming compensation model embodiment one includes the following steps：
Step C1, short-term leader quasi- trimming time T, the first inductor 2 and the second sense are previously provided in electronic control module
Answer the spacing L2 between the spacing L1 and the second inductor 3 and thread cutting mechanism between device 3, electronic control module obtains sewing from the
The standard feeding time Y1 being transferred at two inductors 3 at thread cutting mechanism；Short-term leader quasi- trimming time T is that the second standard is cut
Line time T2 is also when electronic control module has sewing leading edge to pass through the second sense according to the judgement of the feedback signal of the second inductor 3
It answers when device 3, cut the preset time for executing the preceding trimming action for cutting front pigtail at sewing leading edge to thread cutting mechanism.Step
C2, electric control module controls the first inductor 2 and the second inductor 3 are opened.Step C3, when sewing machine is sewed, the leading edge of sewing
The first inductor 2 is first passed through, at this point, electronic control module records the current sewing parameter of sewing machine and starts timing；Later, sewing
Leading edge is by the second inductor 3, at this point, electronic control module records sewing machine current sewing parameter and sewing from the first sense
The real time t being transferred at the second inductor 3 at device 2 is answered, sewing parameter includes current needle gage p, current rotating speed n；Therefore,
Electronic control module is according between spacing L1, the second inductor 3 and the thread cutting mechanism between the first inductor 2 and the second inductor 3
Spacing L2, sewing be transferred to from the first inductor 2 the real time t at second inductor 3 can calculate automatically sewing from
The practical feeding time Y2 being transferred at second inductor 3 at thread cutting mechanism：
Step C4, compensation trimming time △ T is calculated：Δ T=| Y2-Y1 |.Step C5, according to compensation trimming time △ T by described second
Standard trimming time T2 compensation is the practical trimming time X of short-term head：As practical feeding time Y2>When standard feeding time Y1, institute
It states electronic control module to judge trimming delay, delayed the compensation trimming time △ T, then short-term head practical trimming time X=second
Standard trimming time T2+ compensates trimming time △ T；As practical feeding time Y2<When standard feeding time Y1, the electronic control module
Judge trimming in advance, be advanced by the compensation trimming time △ T, then when practical the second standard of the trimming time X=trimming of short-term head
Between T2- compensate trimming time △ T；As practical feeding time Y2=standard feeding time Y1, then trimming time △ T=0 is compensated,
Electronic control module is to the second standard trimming time T2 uncompensation, then practical the second standard of the trimming time X=trimming time T2 of short-term head.
Step C6, when sewing machine is sewed, when the second inductor 3 detects that the leading edge of sewing passes through, the electronic control module starts
Timing and timing expire the thread cutting mechanism controlled in sewing machine after the practical trimming time X of short-term head and execute trimming action, will stitch
Expect that the front pigtail at leading edge is cut, realizes the short effect of trimming the end of a thread.Meanwhile in above-mentioned steps C1, electronic control module obtains seam
Material is transferred to there are two types of the modes of the standard feeding time Y1 at thread cutting mechanism from the second inductor 3：Mode one, standard are sent
Material time Y1 is pre-stored in electronic control module, and electronic control module directly reads standard feeding time Y1 when sewing；Mode two, standard
Feeding time Y1 is mainly calculated according to preset revolving speed N and needle gage P artificial before sewing, then can be pre- in electronic control module
First it is stored with the calculation formula of standard feeding time Y1：Y1=f (P, N), f (P, N) are preset revolving speed N's and needle gage P
Functional relation, when sewing, electronic control module calculates standard according to preset revolving speed N and needle gage P artificial before sewing automatically and send
Expect time Y1.
If the control of trimming cuts time, above-mentioned short-term head before electronic control module is come with the feedback signal of the first inductor 2
In each step of trimming compensation model embodiment one, short-term leader quasi- trimming time T is the first standard trimming time T1, and step
In C6, when the first inductor 2 detects that the leading edge of sewing passes through, the electronic control module starts timing and institute is expired in timing
It states the thread cutting mechanism controlled in sewing machine after the practical trimming time X of short-term head and executes trimming action.In addition, in above-mentioned steps C1,
The standard feeding time Y1 that electronic control module obtains is set or is calculated premised on the maximum speed of setting, still, step
Maximum speed that the current rotating speed n obtained in C3 is not necessarily set, the maximum speed that setting may be less than.Therefore, it is
The accuracy for calculating compensation trimming time △ T is improved, sewing machine actual speed is also previously provided in the electronic control module and adds
The anticipation time Ta of the speed extremely maximum speed of setting；In the step C3, when the edge of sewing passes through the second inductor 3, electricity
Control module judges the current rotating speed n<When the maximum speed of the setting, then electronic control module calculate compensation trimming time △ T
For：Δ T=| Y2-Y1 |-Ta.
As shown in figure 3, short-term head trimming compensation model embodiment two includes the following steps：
Step D1, the quasi- trimming time T of the short-term leader is previously provided in electronic control module, electronic control module obtains sewing
The standard feeding time Z1 being transferred to from the first inductor 2 at second inductor 3；Short-term leader quasi- trimming time T is the
Two standard trimming time T2 are also when electronic control module has sewing leading edge logical according to the judgement of the feedback signal of the second inductor 3
It is cut when crossing the second inductor 3, to thread cutting mechanism and executes the default of the preceding trimming action for cutting front pigtail at sewing leading edge
Time.Step D2, electric control module controls the first inductor 2 and the second inductor 3 are opened.Step D3, when sewing machine is sewed, sewing
Leading edge first pass through the first inductor 2, at this point, electronic control module record and starts timing at the current sewing parameter of sewing machine；It
Afterwards, the leading edge of sewing is by the second inductor 3, at this point, sewing parameter and sewing that electronic control module record sewing machine is current
The real time t being transferred to from the first inductor 2 at second inductor 3, sewing real time t current by sewing machine
Parameter determines that the current sewing parameter of sewing machine includes current needle gage p, current rotating speed n；Meanwhile real time t is also sewing
The practical feeding time Z2 being transferred to from the first inductor 2 at second inductor 3.Step D4, the compensation trimming time is calculated
△T：Δ T=| Z2-Z1 |=| t-Z1 |.Step D5, the second standard trimming time T2 is mended according to compensation trimming time △ T
It repays as the practical trimming time X of short-term head：As practical feeding time Z2>When standard feeding time Z1, the electronic control module judgement is cut
Wire delay has delayed the compensation trimming time △ T, then practical the second standard of the trimming time X=trimming time T2+ of short-term head is mended
Repay trimming time △ T；As practical feeding time Z2<When standard feeding time Z1, the electronic control module judges trimming in advance, in advance
The compensation trimming time △ T, then practical the second standard of the trimming time X=trimming time T2- of short-term head compensates the trimming time
△T；As practical feeding time Z2=standard feeding time Z1, then trimming time △ T=0 is compensated, electronic control module is marked to second
Quasi- trimming time T2 uncompensation, then practical the second standard of the trimming time X=trimming time T2 of short-term head.Step C6, sewing machine stitches
When threading, when the second inductor 3 detects that the leading edge of sewing passes through, the electronic control module starts timing and institute is expired in timing
It states the thread cutting mechanism controlled in sewing machine after the practical trimming time X of short-term head and executes trimming action, before at sewing leading edge
Line pigtail is cut, and realizes the short effect of trimming the end of a thread.Meanwhile in above-mentioned steps D1, electronic control module obtains sewing from the first inductor 2
Place is transferred to there are two types of the modes of the standard feeding time Z1 at the second inductor 3：Mode one, standard feeding time Z1 are prestored
In electronic control module, electronic control module directly reads standard feeding time Z1 when sewing；Mode two, standard feeding time Z1 master
It to be calculated according to preset revolving speed N and needle gage P artificial before sewing, then can be previously stored with standard in electronic control module
The calculation formula of feeding time Z1：Z1=f (P, N), f (P, N) are the functional relation of preset revolving speed N and needle gage P, seam
When threading, electronic control module calculates standard feeding time Z1 according to preset revolving speed N and needle gage P artificial before sewing automatically.
If the control of trimming cuts time, above-mentioned short-term head before electronic control module is come with the feedback signal of the first inductor 2
In each step of trimming compensation model embodiment two, short-term leader quasi- trimming time T is the first standard trimming time T1, and step
In C6, when the first inductor 2 detects that the leading edge of sewing passes through, the electronic control module starts timing and institute is expired in timing
It states the thread cutting mechanism controlled in sewing machine after the practical trimming time X of short-term head and executes trimming action.In addition, in above-mentioned steps D1,
The standard feeding time Z1 that electronic control module obtains is set or is calculated premised on the maximum speed of setting, still, step
Maximum speed that the current rotating speed n obtained in D3 is not necessarily set, the maximum speed that setting may be less than.Therefore, it is
The accuracy for calculating compensation trimming time △ T is improved, sewing machine actual speed is also previously provided in the electronic control module and adds
The anticipation time Ta of the speed extremely maximum speed of setting；In the step D3, when the edge of sewing passes through the second inductor 3, electricity
Control module judges the current rotating speed n<When the maximum speed of the setting, then electronic control module calculate compensation trimming time △ T
For：Δ T=| t-Z1 |-Ta.
Four, short-term head trimming compensation model mode two
The short-term head trimming compensation model includes the following steps：Step F1, sewing is previously provided in electronic control module
The signal processing delay time Tc of spacing L2 and the second inductor between needle pitch P, the second inductor and thread cutting mechanism；
Step F2, the second inductor of electric control module controls is opened, at this point, the first inductor can be closed, be used not as detection；Step F3,
When sewing machine is sewed, when sewing passes through the second inductor, electronic control module obtains the current rotating speed n of sewing machine and starts timing,
The practical trimming time X of short-term head is directly calculated as by electronic control module：X=L2/ (P*n)-Tc, corresponding practical needle number are L2/P-
n*Tc；The thread cutting mechanism controlled in sewing machine after the practical trimming time X of short-term head is expired in electronic control module timing executes trimming action.
Further, for above-mentioned long the end of a thread trimming mode and short-term head trimming mode, long the end of a thread trimming mode and short-term
Head trimming compensation model, difference is whether the second inductor 3 is opened, therefore can increase the second inductor 3 in electronic control module
One switch control parameter opened or closed；Such as：When the switch control parameter of the second inductor 3 is set as 0, the second induction
Device 3 is in close state；When the switch control parameter of the second inductor 3 is set as 1, the second inductor 3 is in the open state.
In conclusion the application is capable of providing the preceding trimming control of a variety of sewing modes, and then can be according to specific sewing
Technique realizes the effect of the short effect of trimming the end of a thread and trimming the end of a thread length, meets a variety of sewing technologies and specific sewing technology at present
Demand.
Further, rear trimming control method includes the following steps in the application：Step E1, it is set in advance in electronic control module
It is equipped with trimming time K after standard, to be electronic control module judged trimming time K with the feedback signal of third inductor 4 after the standard
Whether the back edge of sewing is had by time for cutting of trimming moving knife in third inductor 4, control thread cutting mechanism, after standard
Trimming time K can be 0；Step E2, electric control module controls third inductor 4 is opened；Step E3, when sewing machine is sewed, when the
When three inductors 4 detect that the back edge of sewing passes through, when electronic control module starts timing and trimming after the standard is expired in timing
Between after K control thread cutting mechanism execute trimming action, the rear line pigtail of sewing rear edge is cut, after the completion trimming.
In addition, in above-mentioned sewing machine trimming control mechanism, as shown in Figure 1, first inductor 2 is mounted on sewing machine
It stitches on platform 5；Second inductor 3 is mounted on the needle plate 6 of sewing machine, it is preferable that as shown in Fig. 2, second inductor 3
It is mounted on the needle plate cushion block 7 of lower section.Preferably, second inductor 3 is located at the left side of feeding tooth motion range on needle plate 6
In region, and trimming stationary knife 1 of the neighbour in thread cutting mechanism, the installation site region of this second inductor 3 can make the second sense
Answer position of the device 3 away from trimming stationary knife 1 closer；Under short-term head trimming mode, in conjunction with the common speed conditions of sewing machine and needle gage
Situation sets the installation site of the second optimal inductor 3, it will be able to preferably realize the short effect of set trimming the end of a thread.Institute
Stating thread cutting mechanism is chopper trimming component and the front side for being located at needle plate 6 in sewing machine.Sewing machine trimming control mechanism further includes
Be mounted on seam platform 5 on the 4th inductor 9, the 4th inductor 9 be located at the first inductor 2 dead astern side, with electronic control module phase
Connection, the 4th inductor 9 is for detecting whether have sewing leading edge and/or back edge to pass through, and electronic control module is according to the 4th induction
The output signal of device 9 carries out presser foot lifter control, automatic rise stitches control etc..As shown in Figure 1, the head position of sewing machine is equipped with and cuts
Wiretap component 8, trimming switch block 8 include and lower section the first inductor 2, the second inductor 3, third inductor 4 and
The one-to-one several transmitters of four inductor 9.
The present invention also provides a kind of overedger, sewing machine trimming control machine as described above is installed in the overedger
Structure.
In conclusion the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (13)
1. a kind of sewing machine trimming control method, it is characterised in that：Include the following steps：
S1, setting operation panel and the detection inductor for detecting sewing edge, the operation panel and detection inductor
All it is connected with the electronic control module of sewing machine；
S2, any one trimming mode in a variety of trimming modes is selected by the operation panel, the trimming mode includes
Long the end of a thread trimming mode, short-term head trimming mode and short-term head trimming compensation model；
Under long the end of a thread trimming mode：When sewing machine is sewed, when detection inductor has detected that sewing edge passes through, electricity
Control module starts timing and timing is completely preset in after long the end of a thread standard trimming time M in electronic control module and controls in sewing machine
Thread cutting mechanism executes trimming action；
Under the short-term head trimming mode：When sewing machine is sewed, when detection inductor has detected that sewing edge passes through, electricity
The thread cutting mechanism controlled in module control sewing machine executes trimming action；
Under the short-term head trimming compensation model：When sewing machine is sewed, the electronic control module sewing parameter current according to sewing machine
The practical trimming time X of compensation calculation short-term head；When detection inductor has detected that sewing edge passes through, electronic control module starts to count
When and timing expire the thread cutting mechanism execution trimming action controlled after the practical trimming time X of short-term head in sewing machine.
2. sewing machine trimming control method according to claim 1, it is characterised in that：The detection inductor includes first
The thread cutting mechanism of inductor and the second inductor, first inductor, the second inductor and sewing machine is sent forward along sewing machine
It successively arranges from rear to preceding in the direction of cloth.
3. sewing machine trimming control method according to claim 2, it is characterised in that：Long the end of a thread trimming mode includes
Following steps：
A1, long the end of a thread standard trimming time M is previously provided in electronic control module；
A2, the first inductor of electric control module controls are opened；
When A3, sewing machine sewing, when the first inductor has detected that sewing edge passes through, electronic control module starts timing and counts
When full long the end of a thread standard trimming time M after control thread cutting mechanism execute trimming action.
4. sewing machine trimming control method according to claim 2, it is characterised in that：The short-term head trimming mode includes
Following steps：
B1, the second inductor of electric control module controls are opened；
When B2, sewing machine sewing, when the second inductor has detected that sewing edge passes through, electronic control module controls sewing machine at once
In thread cutting mechanism execute trimming action.
5. sewing machine trimming control method according to claim 2, it is characterised in that：The short-term head trimming compensation model
Include the following steps：
C1, it is being previously provided in electronic control module between short-term leader quasi- trimming time T, the first inductor and the second inductor
Spacing L2 between spacing L1 and the second inductor and thread cutting mechanism, electronic control module obtain sewing from quilt from the second inductor
The standard feeding time Y1 being transferred at thread cutting mechanism；
C2, the first inductor of electric control module controls and the second inductor are opened；
When C3, sewing machine sewing, the current sewing parameter of the sewing machine includes current needle gage p, current rotating speed n and sewing
The time t being transferred at the second inductor from the first inductor, the electronic control module calculate sewing from the second sense automatically
Answer the practical feeding time Y2 being transferred at thread cutting mechanism at device：
C4, compensation trimming time △ T is calculated：Δ T=| Y2-Y1 |；
C5, the quasi- trimming time T of the short-term leader is compensated as the practical trimming time X of short-term head according to compensation trimming time △ T：
As practical feeding time Y2>When standard feeding time Y1, the electronic control module judges that trimming postpones, the short-term head practical trimming time
X=short-term leader quasi- trimming time T+ compensates trimming time △ T；
As practical feeding time Y2<When standard feeding time Y1, the electronic control module judges that trimming shifts to an earlier date, the practical trimming of short-term head
Time X=short-term leader quasi- trimming time T- compensates trimming time △ T；
When C6, sewing machine sewing, when the first inductor or the second inductor have detected that sewing edge passes through, the automatically controlled mould
BOB(beginning of block) timing and timing expire the thread cutting mechanism controlled in sewing machine after the practical trimming time X of short-term head and execute trimming action.
6. sewing machine trimming control method according to claim 2, it is characterised in that：The short-term head trimming compensation model
Include the following steps：
D1, the quasi- trimming time T of short-term leader is previously provided in electronic control module, electronic control module obtains sewing from the first inductor
Place is transferred to the standard feeding time Z1 at the second inductor；
D2, the first inductor of electric control module controls and the second inductor are opened；
When D3, sewing machine sewing, the current sewing parameter of the sewing machine includes that sewing is transferred to the from the first inductor
When time t at two inductors, time t are that sewing is transferred to the practical feeding at the second inductor from the first inductor
Between Z2；
D4, compensation trimming time △ T is calculated：Δ T=| Z2-Z1 |=| t-Z1 |；
D5, the quasi- trimming time T of the short-term leader is compensated as the practical trimming time X of short-term head according to compensation trimming time △ T：
As practical feeding time Z2>When standard feeding time Z1, the electronic control module judges that trimming postpones, the short-term head practical trimming time
X=short-term leader quasi- trimming time T+ compensates trimming time △ T；
As practical feeding time Z2<When standard feeding time Z1, the electronic control module judges that trimming shifts to an earlier date, the practical trimming of short-term head
Time X=short-term leader quasi- trimming time T- compensates trimming time △ T；
When D6, sewing machine sewing, when the first inductor or the second inductor have detected that sewing edge passes through, the automatically controlled mould
BOB(beginning of block) timing and timing expire the thread cutting mechanism controlled in sewing machine after the practical trimming time X of short-term head and execute trimming action.
7. sewing machine trimming control method according to claim 5 or 6, it is characterised in that：It is also pre- in the electronic control module
First it is provided with the anticipation time Ta that sewing machine actual speed accelerates to the maximum speed of setting；In the step C3, when automatically controlled mould
When block judges that sewing crosses the second inductor, the current rotating speed n of sewing machine<When the maximum speed of the setting, then electronic control module meter
The compensation trimming time △ T of calculation is：Δ T=| Y2-Y1 |-Ta；Alternatively, in the step D3, when electronic control module judges sewing mistake
When the second inductor, the current rotating speed n of sewing machine<When the maximum speed of the setting, then electronic control module calculate compensation trimming
Time △, T was：Δ T=| t-Z1 |-Ta.
8. sewing machine trimming control method according to claim 2, it is characterised in that：The short-term head trimming compensation model
Include the following steps：
F1, the spacing L2 being previously provided in electronic control module between sewing needle distance P, the second inductor and thread cutting mechanism, with
And second inductor signal processing delay time Tc；
F2, the second inductor of electric control module controls are opened；
When F3, sewing machine sewing, when sewing passes through the second inductor, electronic control module obtains the current rotating speed n of sewing machine and opens
The practical trimming time X of short-term head is calculated as by beginning timing, electronic control module：X=L2/ (P*n)-Tc；It is full short to electronic control module timing
The thread cutting mechanism controlled in sewing machine after the practical trimming time X of the end of a thread executes trimming action.
9. sewing machine trimming control method according to claim 2, it is characterised in that：First inductor is mounted on seam
It threads on the seam platform of machine, second inductor is mounted on the needle plate of sewing machine, and the thread cutting mechanism is chopper trimming component, simultaneously
The front side of needle plate in sewing machine.
10. sewing machine trimming control method according to claim 9, it is characterised in that：Second inductor is located at needle
On plate in the left area of feeding tooth motion range, and trimming stationary knife of the neighbour in thread cutting mechanism.
11. sewing machine trimming control method according to claim 2, it is characterised in that：First inductor and second
Inductor all is used to detect the leading edge of sewing, and the sewing machine trimming control method is formed in sewing for thread cutting mechanism trimming
The preceding trimming control of front pigtail at leading edge.
12. a kind of sewing machine trimming control mechanism, it is characterised in that：The sewing machine trimming control mechanism is wanted for realizing right
The described in any item sewing machine trimming control methods of 1-11 are sought, the sewing machine trimming control mechanism includes for detecting sewing side
The electronic control module for detecting inductor, operation panel, thread cutting mechanism and sewing machine of edge, the detection inductor, operation panel
All it is connected with electronic control module with the trimming driving source in thread cutting mechanism.
13. a kind of overedger, it is characterised in that：The control of sewing machine trimming described in claim 12 is installed in the overedger
Mechanism.
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| CN109371585A (en) * | 2018-11-30 | 2019-02-22 | 杰克缝纫机股份有限公司 | A kind of trimming control method |
| CN109487452A (en) * | 2019-01-21 | 2019-03-19 | 杰克缝纫机股份有限公司 | A kind of bobbin thread for sewing machine detection control method |
| CN110791885A (en) * | 2019-11-28 | 2020-02-14 | 杰克缝纫机股份有限公司 | Sewing machine electric control parameter adjusting method, device, equipment and readable storage medium |
| CN111691083A (en) * | 2019-03-13 | 2020-09-22 | 杰克缝纫机股份有限公司 | Inductor switching control method |
| CN111945311A (en) * | 2019-05-17 | 2020-11-17 | 杰克缝纫机股份有限公司 | Thread trimming control method, thread trimming system and sewing machine |
| CN112064210A (en) * | 2019-06-11 | 2020-12-11 | 杰克缝纫机股份有限公司 | Method for quickly adjusting parameters of thread trimming stub of sewing machine |
| CN112899908A (en) * | 2021-01-15 | 2021-06-04 | 台州市速普机电有限公司 | Overedger with three-light-eye automatic detection device and sewing method |
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