CN109943991A - Baseline detection method, bobbin thread detection device and sewing machine - Google Patents
Baseline detection method, bobbin thread detection device and sewing machine Download PDFInfo
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- CN109943991A CN109943991A CN201910344134.8A CN201910344134A CN109943991A CN 109943991 A CN109943991 A CN 109943991A CN 201910344134 A CN201910344134 A CN 201910344134A CN 109943991 A CN109943991 A CN 109943991A
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Abstract
The invention discloses a kind of baseline detection method, device and sewing machines.This method is applied to sewing machine, and sewing machine includes: shuttle, and peg or spindle is equipped with the wrapping post for winding baseline；Reflecting component on wrapping post；Photoelectric sensor, reflecting component can expose back reflection light beam to photoelectric sensor, and photoelectric sensor generates peg or spindle reflection signal after receiving the reflected beams.This method comprises: being issued warning signal when the peg or spindle for receiving photoelectric sensor for the first time reflects signal, wherein when receiving peg or spindle reflection signal for the first time, the initial residual base line length on wrapping post is greater than 0.In the detection method, when the baseline on wrapping post also remains certain length, according to the cooperation of photoelectric sensor and reflecting component, warning information can be issued, to remind staff to prepare spare shuttle in time to replace in advance in baseline surplus deficiency, be conducive to avoid invalid operation caused by due to running empty needle, and advantageously reduce the waste of substandard products generation and cloth.
Description
Technical field
The present invention relates to technical field of sewing equipment, in particular to a kind of baseline detection method, bobbin thread detection device and
Sewing machine.
Background technique
At work, shuttle peg base line judges shuttle peg base line line using macroscopic mode for a kind of typical industrial sewing machine
Amount.However, working as, baseline is used up but operating personnel forgets that preparing peg or spindle in time replaces, and just be will appear and is run empty needle, broken string etc. now
As will cause and frequently do over again and the waste of fabric.
Therefore, how peg or spindle is replaced much sooner, 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 a kind of baseline detection method, advantageously ensure that staff more and
When replace peg or spindle.The object of the present invention is to provide a kind of bobbin thread detection device and the sewing machine of the application above method, sewing
Advantageously ensure that staff replaces peg or spindle much sooner in the process.
To achieve the above object, the invention provides the following technical scheme:
A kind of baseline detection method, is applied to sewing machine, and the sewing machine includes:
Shuttle, peg or spindle are equipped with the wrapping post for winding baseline；
Reflecting component on the wrapping post；
Photoelectric sensor, the reflecting component can expose back reflection light beam to the photoelectric sensor, the photoelectric transfer
Sensor generates peg or spindle reflection signal after receiving the reflected beams；
This method comprises:
It is issued warning signal when the peg or spindle for receiving the photoelectric sensor for the first time reflects signal, wherein for the first time
When receiving the peg or spindle reflection signal, the initial residual base line length on the wrapping post is greater than 0.
Preferably, the initial residual base line length is to prestore definite value.
Preferably, comprising:
When receiving a simulation sewing signal, simulation sewing is carried out to current residual baseline on the wrapping post,
In, the simulation sewing signal includes the peg or spindle reflection signal received for the first time；
Judge whether the current residual baseline can be stitched to corresponding current expection according to the result of the simulation sewing
Position, if so, when the eedle of determination sewing component is stitched to the current intended position, on prestoring tailoring pattern locating for correspondence
Current intended position, and the information of the current intended position is shown on tailoring pattern in described prestore.
Preferably, further includes:
The real time position of the eedle is shown on tailoring pattern in described prestore.
Preferably, the result according to the simulation sewing judges whether the current residual baseline can be stitched to correspondence
Current intended position in, if so, also carry out:
Determine total time needed for the eedle is stitched to the current intended position from current location, and with it is described required total when
Between carry out countdown show.
Preferably, the simulation sewing signal further includes the complete signal of seam that the sewing component is sent, wherein is connect for the first time
After receiving the peg or spindle reflection signal, a sewing is received per corresponding when completely having stitched a line segment in the sewing component
The complete signal of the seam that component issues；
The initial residual base line length is greater than the length for prestoring any one line segment in tailoring pattern；
The corresponding current intended position of the current residual baseline is the final position of next line segment.
Preferably, described to judge whether current residual baseline be stitched to current intended position according to simulation sewing result
In, if it is not, then:
When the eedle is stitched to the corresponding current line segment terminal of the current intended position, sent to the sewing component
Stop sewing signal.
A kind of bobbin thread detection device, is applied to sewing machine, and the sewing machine includes:
Shuttle, peg or spindle are equipped with the wrapping post for winding baseline；
Reflecting component on the wrapping post；
Photoelectric sensor, the reflecting component can expose back reflection light beam to the photoelectric sensor, the photoelectric transfer
Sensor generates peg or spindle reflection signal after receiving the reflected beams；
The bobbin thread detection device includes:
Processing module, for issuing early warning letter when the peg or spindle for receiving the photoelectric sensor for the first time reflects signal
Number, wherein when receiving the peg or spindle reflection signal for the first time, the initial residual base line length on the wrapping post is greater than 0.
Preferably, the processing module includes:
Simulation sewing unit, for when receiving simulation and sewing signal, to current residual bottom on the wrapping post
Line carries out simulation sewing, drives judging unit, wherein the simulation sewing signal includes that the peg or spindle that receives for the first time is anti-
Signal is penetrated, the initial residual base line length is to prestore definite value；
Judging unit, for judging whether the current residual baseline can be stitched to pair according to the result of the simulation sewing
The current intended position answered, if so, the first prewarning unit of driving and the second prewarning unit；
First prewarning unit, it is corresponding on prestoring tailoring pattern when for determining that eedle is stitched to the current intended position
Locating current intended position, and the information of the current intended position is shown on tailoring pattern in described prestore；
Second prewarning unit, for determining that the eedle of sewing component is stitched to needed for the current intended position from current location
Total time, and countdown is carried out with the required total time and is shown.
A kind of sewing machine, including control system and shuttle, the control system baseline as described in any one of the above embodiments
Detection method, the wrapping post of the shuttle is multi-diameter shaft, and the reflecting component is set at least one shaft part on the wrapping post
On；When the peg or spindle that the control system receives the photoelectric sensor for the first time reflects signal, the initial residual baseline
The starting point of the baseline of length is located at the point of intersection of two shaft parts.
Baseline detection method provided by the invention, when the baseline on wrapping post also remains certain length, according to photoelectric transfer
The cooperation of sensor and reflecting component can issue warning information, to remind staff to prepare in time in advance in baseline surplus deficiency
Spare shuttle can shorten overall time of the shuttle from preparing to replacement, be conducive to avoid making because running empty needle to be replaced
At invalid operation, and advantageously reduce substandard products generate and cloth waste.
The sewing machine of bobbin thread detection device provided by the invention and the application above method, advantageously ensures that in sewing process
Staff replaces peg or spindle much sooner.
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 a kind of schematic diagram of tailoring pattern applied by detection method provided by the present invention；
Fig. 2 is a kind of prompt information that detection method provided by the present invention is shown in the application；
Fig. 3 is a kind of relationship of detection method provided by the present invention eedle physical location and current intended position in the application
Figure；
Fig. 4 is the light schematic diagram of photoelectric sensor in sewing machine provided by the present invention；
Fig. 5 is the structure chart of the first peg or spindle in sewing machine provided by the present invention；
Fig. 6 is the main view of the first peg or spindle in sewing machine provided by the present invention；
Fig. 7 is the sectional view along A-A of Fig. 6；
Fig. 8 is the main view of second of peg or spindle in sewing machine provided by the present invention；
Fig. 9 is the main view of the third peg or spindle in sewing machine provided by the present invention；
Figure 10 is the structure chart of sewing machine provided by the present invention；
Figure 11 is the schematic diagram of detection device provided by the present invention；
Figure 12 is the flow chart of detection method embodiment provided by the present invention.
Fig. 4 is into Figure 11:
1- photoelectric sensor, 11- detect light beam, 2- rotating shuttle, 21- peg or spindle, 22- end plate, 23- wrapping post, 24- partition, 25-
Groove, 26- loophole, 27- small diameter portion, 29- baseline reserve portion, the first groove of 210-, the second groove of 211-, 3- bottom plate, 4-
Two prewarning units, 5- blowning installation, 51- pressing plate, 52- tracheae, 6- reflecting component, 7- simulation sewing unit, 8- judging unit, 9- the
One prewarning unit.
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 a kind of baseline detection method, advantageously ensures that staff's more shuttle changing much sooner
Core.Core of the invention is to provide the sewing machine of a kind of bobbin thread detection device and the application above method, advantageous in sewing process
Peg or spindle is replaced much sooner in guarantee staff.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Baseline detection method provided by the present invention is applied to sewing machine, which includes: shuttle, reflecting component, photoelectric transfer
Sensor.Baseline detection method can be realized by bobbin thread detection device.
The peg or spindle of shuttle is equipped with the wrapping post for winding baseline, and reflecting component is arranged on the wrapping post.Photoelectric sensing
Device includes transmitter and receiver, and transmitter is used to emit to wrapping post detection light beam, and reflecting component can expose back reflection light
Beam is to photoelectric sensor, and receiver is for receiving the reflected beams.It is anti-that photoelectric sensor generates peg or spindle after receiving the reflected beams
Penetrate signal.
In the baseline detection method, comprising the following steps:
It is issued warning signal when the peg or spindle for receiving photoelectric sensor for the first time reflects signal.Wherein, it is connect for the first time
When receiving peg or spindle reflection signal, the initial residual base line length on the wrapping post is greater than 0.
Wherein, after the completion of coiling, baseline covers reflecting component, and reflecting component is unable to the inspection that retroreflective photoelectric sensor is sent
Survey light beam.With the continuous consumption of baseline, reflecting component, which can be gradually exposed, to be come.The reflecting component exposed can be with photoelectric sensor phase
Cooperation, the detection light beam that retroreflective photoelectric sensor is sent form the reflected beams.
Wherein, the peg or spindle of the photoelectric sensor received for the first time reflects signal, and usually photoelectric sensor is for the first time
It receives and generates after the reflected beams.When receiving peg or spindle reflection signal for the first time, initial residual baseline on the wrapping post
Length need to guarantee that occurrence can be configured according to actual needs greater than 0.
Wherein, pre-warning signal can be realized according to its form by warning pieces such as display, indicator light, buzzers.Example
Such as, remaining initial residual base line length is shown by display, using as warning information.
In the embodiment, when the baseline on wrapping post also remains certain length, according to photoelectric sensor and reflecting component
Cooperation, can issue warning information, to remind staff to prepare spare shuttle in time to carry out in advance in baseline surplus deficiency
Replacement can shorten overall time of the shuttle from preparing to replacement, be conducive to avoid invalid operation caused by due to running empty needle, and
Advantageously reduce the waste of substandard products generation and cloth.
Further, initial residual base line length is set as prestoring definite value.When receiving peg or spindle reflection signal for the first time,
Initial residual base line length on wrapping post be greater than 0 and the length value be it is known, convenient for the progress of subsequent control step.
In addition, the quantitative setting in order to realize initial residual base line length, needs staff's control when winding baseline
The canoe of good baseline and the relationship of reflecting component position, it is preferred to use the shuttle in sewing machine that the present invention hereinafter provides.
Further, this method comprises:
When receiving a simulation sewing signal, simulation sewing is carried out to current residual baseline on wrapping post；
Judge whether current residual baseline can be stitched to corresponding current intended position according to the result that above-mentioned simulation sews,
If so, when the eedle of determination sewing component is stitched to current intended position, it is current pre- locating for correspondence on prestoring tailoring pattern
Phase position, and show on prestoring tailoring pattern the information of current intended position.Specifically, which can be used as warning information
One kind.
Wherein, prestoring tailoring pattern is the pattern for finally requiring to realize after pre-stored sewing in bobbin thread detection device,
The pattern is made of several line segments.Wherein, it has set seam position and to adjacent setting cutting position has been set to a line segment, it can also be with
It says, adjacent set twice is a line segment between trimming position.In addition, in actually sewing, caused by machine or environment
Unexpected broken position in non-setting trimming position, is not belonging to setting trimming position.
Wherein, simulation sewing specifically can use the cloth parameter prestored in bobbin thread detection device and tailoring pattern data are complete
At.Cloth parameter may include fabric thickness；Cloth in current sewing speed, when front wires baseline and current eedle situation
Under, sew line amount consumed by certain length stitching and time (including sewing time and sky send the time)；It can also include other
Parameter.Tailoring pattern data may include in pattern stitching sew sequence, need trimming number, trimming position, every time
The base line length consumed by the end of a thread on cloth is sewed after trimming and is counted per the needle number to be sewed etc. between trimming twice
According to.
In addition, in simulation sewing scheme:
Trimming is set next time to adjacent in the peg or spindle reflection signal opportunity pin position for receiving photoelectric sensor for the first time
The line amount L of required consumption between position0:
L0=m0×(P+H) (1)
In formula (1):
m0: signal opportunity pin position, which is reflected, in the peg or spindle for receiving photoelectric sensor for the first time cuts to adjacent setting next time
The needle number for needing to sew between line position；
P: needle gage；
H: fabric thickness.
The base line length of the estimated consumption of line segment and each sewing machine data have following relationship:
L=[m1×(P+H)+(d1+d2)×m2] (2)
In formula (2):
m1: line segment needs the needle number sewed；
P: needle gage；
H: fabric thickness；
d1: the bottom stub consumed when trimming；
d2: the bottom stub consumed when playing seam；
m2: the number of trimming.
Each parameters relationship in temporal characteristics is as follows:
In formula (3):
T: peg or spindle is received for the first time and reflects signal to the duration stopped when sewing；
N: the revolving speed for component of sewing；
m1: peg or spindle is received for the first time reflects signal to the needle number stopped when sewing；
T: time used in sewing trimming of component；
m2: peg or spindle is received for the first time reflects signal to the number for stopping trimming when sewing；
T1: after early warning, between eedle and current intended position, eedle sky send the required time.
Wherein, time T required for eedle sky is sent1Are as follows:
T1=max (t1×L2, t2×L3) (4)
In formula (4):
t1: required time when X feeding motor sky work feed material list bit length；
L2: sky send position X-direction to need mobile distance；
t2: required time when Y feeding motor sky work feed material list bit length；
L3: sky send position Y-direction to need mobile distance；
Note: because of t1With t2It can be as motor speed and associated actuator than not being main contents, here not obtained by calculating
It is described in detail.
Wherein, the simulation sewing signal includes the peg or spindle reflection signal received for the first time, it is, of course, also possible to wrap
Include the control signal of the other component received.When simulation sewing signal is more than one, primary simulation sewing letter is often received
Number, then it is corresponding to carry out primary simulation sewing, according to result of this simulation sewing determine current residual baseline corresponding at this time with
And current intended position.That is, the remaining baseline of synchronization is corresponding current residual baseline, together for analog signal
The desired location at one moment is corresponding current intended position.
In addition, current intended position is set according to the setting rule that prestores in bobbin thread detection device, it is current pre-
Phase position is specifically as follows the amount changed according to eedle physical location.In conjunction with Fig. 1, sewing direction is detected by O to F in baseline
When device receives peg or spindle reflection signal for the first time, eedle is located at A point, and in actually sewing, eedle has been sewed in line segment OB
Line segment after OA, A point is not sewed also.If current intended position is set as the final position of next line segment, (it is stitched at this time
When A point), C point is current intended position, and when eedle has stitched C point, D point becomes current intended position；If current intended position
Be set as the final position of lower two line segments, then at this time (when being stitched to A point), D point is current intended position, and when eedle has stitched C
When point, F point becomes current intended position；The rest may be inferred can determine current intended position under each position of eedle.Or
Position (n > 0) after position when current intended position may be arranged as receiving simulation sewing signal at length n, example
Such as, n 2mm, then in Fig. 1, current intended position is the position at 2mm after A point.Certainly, in other embodiments, examined in baseline
When survey device receives peg or spindle reflection signal for the first time, eedle may also be located at O point, that is, be exactly completed the seam of a line segment
It threads.
Display for current intended position, still by taking Fig. 1 as an example, the corresponding current intended position of setting current residual baseline
For the final position of next line segment.At this point, eedle is located on OB, current intended position is the C point prestored on tailoring pattern, is shown
Show that device can show content as shown in Figure 2, wherein five-pointed star is the current intended position of eedle, and background patterns (line chart) are i.e.
Tailoring pattern is prestored for what is completed.
In the present embodiment, sewing feature is simulated by display, that is, prestores the opposite position of tailoring pattern and current intended position
Relationship is set, the target position that staff currently sews can be intuitively prompted.
Further, this method further include:
The real time position of eedle is shown on prestoring tailoring pattern.
Wherein, on display, the real time position of eedle be it is dynamic, it is synchronous with real time position of the eedle on entity cloth
It is mobile.Eedle real time position label can be indicated from current intended position label with different labels.Specifically as shown in figure 3, seam
It threads during line segment CD, desired location is marked as D point and with five-pointed star before setting, and the small triangle for representing eedle is constantly moved to D point
It is dynamic.
It, can be with by prestoring tailoring pattern while showing current intended position, eedle real time position in the present embodiment
The positional relationship between eedle real time position and current intended position is embodied, staff can be made more to intuitively understand sewing
Process.
Further, in step: judging whether the current residual baseline can stitch according to the result of the simulation sewing
Extremely in corresponding current intended position, if so, also carrying out:
Total time needed for the eedle of determining sewing component is stitched to the current intended position from current location, and it is required with this
Total time countdown is carried out to show.For example, required total time is 10s, then countdown is carried out by initial time of 10s on display
Display.Specifically, which shows the one kind that can be used as warning information.
Wherein, the amount when countdown is arranged, after corresponding current intended position has been determined, in formula (3) on the right side of equation
It is known quantity, then can determines the value of duration T according to formula (3).
In the present embodiment, by the setting of countdown function, personnel time's information can be more clearly reminded, just
In staff to the control of time.
Further, the simulation sewing signal further includes the complete signal of seam that sewing component is sent.Wherein, it receives for the first time
After reflecting signal to the peg or spindle, a sewing portion is received per corresponding when completely having stitched a line segment in the sewing component
The complete signal of the seam that part issues.Meanwhile the corresponding current intended position of the current residual baseline is next line segment
Final position
That is, this method loop to determine in utilization for the baseline of initial base line length, so that baseline
Producing level maximizes, it is possible to reduce the waste of baseline.
In addition, the initial residual base line length is greater than the length for prestoring any one line segment in tailoring pattern.Such as
This setting, it is ensured that if receive the peg or spindle reflection signal for the first time, eedle is located at the middle part of a line segment, such as Fig. 1
In A point, the baseline of initial residual base line length can centainly stitch the remaining part of the line segment, the i.e. part AB.
Wherein, sewing component has completely stitched a line segment and has referred to that the part of sewing includes stitching from a setting trimming position
The complete line segment of extremely next setting trimming position, and complete line segment only one.In Fig. 1, being stitched to D by C is completely to have stitched one
Line segment, being stitched to F by D is completely to have stitched a line segment, and need especially to define, since A is not setting trimming position, from A
Being stitched to B not includes complete line segment, so be not belonging to completely stitch a line segment, be stitched to C from A and be only and completely stitched a line segment
(including complete line segment BC).
A kind of concrete application process of the present embodiment institute providing method is as follows:
Step S1: issuing warning signal when the peg or spindle for receiving the photoelectric sensor for the first time reflects signal,
I=0 is enabled, step S2 is executed；
Step S2: judge whether expected residual base line length Si+2=Si-Li-Li+1>=0, if so, executing step S3；
Step S3: it when receiving the complete signal of seam that the sewing component issues, enables i be equal to current i and adds 1, execute step
Rapid S4；
Step S4: judge whether expected residual base line length Si+2=S 'i+1-Li+1>=0, if so, issuing warning signal, weight
The step S3 is executed again.
Wherein, when i is 0, S0For initial residual base line length and it is greater than L0, L0It is pre- for sewing initial segment remainder AB
Count the base line length of consumption；When i is positive integer, Si+2For the expected residual base line length after sewing i+1 line segment, S 'i+1For
It sews the real surplus base line length after i-th of line segment, Li+1For the base line length of the estimated consumption of sewing i+1 line segment.
Wherein, for i-th of line segment, its expected residual base line length previous calculated after i-th of line segment of sewing of sewing
Si+1, when not occurring failure in sewing process, then after i-th of line segment of sewing, S 'i+1=Si+1；Occur in sewing process
When the failures such as broken string, then after i-th of line segment of sewing, S 'i+1=Si+1Waste length.
For example, calculating expected residual base line length S in step S43> 0 is repeated after sewing component has stitched the 2nd line segment
Execute step S3, i=2；Then, in step S4, expected residual base line length S is calculated4=S '3-L3When, for length therein
S′3If being normal, S ' in the process for the 2nd line segment of sewing3=S3If gone out during sewing the 2nd line segment
Show failure, then S '3It is less than expected residual amount S3, then S '3=S3Wastage.
Wherein, issue warning signal may include mentioned above current intended position being shown on prestoring tailoring pattern
Information and by eedle from current location be stitched to total time needed for current intended position carry out countdown show.
Further, in step: judging whether current residual baseline can be stitched to current expection according to simulation sewing result
When position, if it is not, then:
When eedle is stitched to the corresponding current line segment terminal of the current intended position, sends and stop to the sewing component
Sewing signal.
That is, step S2: judging whether expected residual base line length S in above-mentioned concrete applicationi+2=Si-Li-Li+1>=0,
If so, step S3 is executed, and otherwise, when the sewing component is stitched to the corresponding current line segment terminal of the current intended position,
It is sent to the sewing component and stops sewing signal；In above-mentioned steps S4: judging whether expected residual base line length Si+2=S
′i+1-Li+1>=0, if so, issuing warning signal, the step S3 is repeated, otherwise, is sent to the sewing component and stops seam
It threads signal.
In addition, can be believed while sending stopping sewing signal to control sewing component stopping sewing with display alarm
Breath, to remind user to replace peg or spindle.
Specifically, as shown in Figure 1:
If eedle receives simulation sewing signal when being located at the point A in the middle part of line segment OB, corresponding current line segment is whole
Point is B point, and current intended position is C point, if it is determined that current residual baseline cannot be stitched to C point, then when eedle is stitched to B point, to
Component of sewing, which is sent, stops sewing signal, and sewing component is made to stop sewing；
If eedle receives simulation sewing signal, corresponding current line segment when being located at the terminal C point of line segment BC line segment
Terminal is C point, and current intended position is D point, if it is determined that current residual baseline cannot be stitched to D point, since eedle is in C at this time
Point then sends immediately to sewing component and stops sewing signal.
That is, being only that the peg or spindle received for the first time reflects signal and eedle is located at one in simulation sewing signal
When the middle part of line segment, after determining that current residual baseline cannot be used for being stitched to current intended position, eedle needs to sew again one section
Until the terminal of current line segment, stopping sewing signal is then retransmited；And signal is sewed for the simulation in the case of other, due to
It is to be judged when eedle is in the terminal of current line segment, is determining that it is current pre- that current residual baseline cannot be used for being stitched to
Behind phase position (terminal of i.e. next line segment), eedle is also still in the terminal of current line segment, and eedle is not necessarily to after judgement
It sews again, can directly generate and send stopping sewing signal.
In addition, cannot be used for being stitched to current intended position in judgement current residual baseline from the point of view of display shows situation
After (that is, final position of next line segment), the label for representing desired location does not then move to the final position of next line segment, and
It is to rest on current line segment final position, the dynamic tick marks for representing eedle reach current line segment final position and coincide with representative in advance
When the label of phase position, control sewing component shuts down, and stops sewing, while can replace bottom by display reminding on a display screen
The text of line.Specifically as shown in figure 3, during sewing line segment CD, eedle real time position marks small triangle constantly mobile to D point,
When small triangle coincides with D point with the five-pointed star for representing desired location, after determining the DF that no longer sews, five-pointed star is no longer moved, and
Component of sewing stops sewing.But if small triangle and five-pointed star coincide with D point and determine that current residual baseline is enough sewed DF,
Five-pointed star moves to F point, and small triangle continues mobile towards F on line segment DF.
Bobbin thread detection device provided by the present invention, is applied to sewing machine, and the sewing machine includes:
Shuttle, peg or spindle are equipped with the wrapping post for winding baseline；
Reflecting component on the wrapping post；
Photoelectric sensor, the reflecting component can expose back reflection light beam to the photoelectric sensor, the photoelectric transfer
Sensor generates peg or spindle reflection signal after receiving the reflected beams.
The bobbin thread detection device is corresponding to realize that the baseline detection method provided in above each embodiment, beneficial effect are specific
It can be with reference to above each embodiment.
Specifically, which includes:
Processing module, for issuing early warning letter when the peg or spindle for receiving the photoelectric sensor for the first time reflects signal
Number, wherein when receiving the peg or spindle reflection signal for the first time, the initial residual base line length on the wrapping post is greater than 0.
Further, processing module specifically includes:
Simulation sewing unit, for when receiving simulation and sewing signal, to current residual bottom on the wrapping post
Line carries out simulation sewing, drives judging unit, wherein the simulation sewing signal includes that the peg or spindle that receives for the first time is anti-
Signal is penetrated, the initial residual base line length is to prestore definite value；
Judging unit, for judging whether the current residual baseline can be stitched to pair according to the result of the simulation sewing
The current intended position answered, if so, the first prewarning unit of driving and the second prewarning unit；
First prewarning unit, it is corresponding on prestoring tailoring pattern when for determining that eedle is stitched to the current intended position
Locating current intended position, and the information of the current intended position is shown on tailoring pattern in described prestore；
Second prewarning unit, for determining that the eedle of sewing component is stitched to needed for the current intended position from current location
Total time, and countdown is carried out with the required total time and is shown.
In addition to above-mentioned baseline detection method and device, the present invention also provides a kind of sewing machines, specifically include control system
System and shuttle.Wherein, the above-mentioned baseline detection method of the control system is specifically as follows the detection of any of the above baseline
Method.Wherein, as shown in Fig. 4 to Figure 10, the wrapping post 23 of the shuttle is multi-diameter shaft, and the reflecting component is set to the coiling
On at least one shaft part on column 23.Signal is reflected in the peg or spindle that the control system receives the photoelectric sensor for the first time
When, the starting point of the baseline of initial residual base line length is located at the point of intersection of two shaft parts, that is, control system receives for the first time
When the peg or spindle of the photoelectric sensor reflects signal, the baseline on what a proper shaft part has been stitched, and baseline breaks in the friendship of two shaft parts
At point.Preferably, the baseline of the initial residual base line length is wound on one of them described shaft part of the wrapping post 23.
Specifically, shuttle is specifically as follows shuttle or rotating shuttle.Shuttle includes peg or spindle, and peg or spindle includes that wrapping post 23 and setting exist
The end plate 22 at 23 both ends of wrapping post, wrapping post 23 are multi-diameter shaft.Wherein, multi-diameter shaft refers to that wrapping post 23 exists extremely in the axial direction
Few two shaft parts.Wherein, shaft part refers to that part on wrapping post 23 between the adjacent shaft shoulder or end plate 22 and axial distance should
Part between the nearest shaft shoulder of end plate 22.In general, the radial dimension of adjacent shaft part is different.In addition, each shaft part is preferably cylinder
Body or torus, specific as shown in Figure 6 and Figure 7, there are three shaft parts for tool on wrapping post 23.
Due to, with different shaft parts, the region of wrapping post can be directly distinguished according to the structure of wrapping post on wrapping post,
It can demarcate to wrapping post at docking between shaft part, the winding position of baseline can be distinguished, can be convenient ground
It realizes and the length of initial residual baseline is controlled.
Reflecting component 6 is arranged on wrapping post 23, and reflecting component 6 is arranged at least one shaft part on wrapping post 23.
By setting multi-diameter shaft for wrapping post 23, there is apparent region division on wrapping post 23, baseline is in wrapping post
On position can clearly be distinguished, facilitate the positional relationship of the reflective sheet of determining baseline, be convenient for Guarantee control system first
When the secondary peg or spindle reflection signal for receiving the photoelectric sensor, the length of unconsumed baseline is initial surplus on wrapping post
Remaining base line length S0。
More specifically, as shown in fig. 7, the axial middle part protrusion of wrapping post 23 forms partition 24, be located on wrapping post 23 every
The two sides of plate 24 respectively form a groove 25, are equipped with reflecting component 6 at least one of which groove 25.
Referring to FIG. 8, the trench structure formed between wrapping post 23 and end plate 22 is divided into two parts, an end by partition 24
The first groove 210 is formed between plate 22 and partition 24, forms the second groove 211 between another end plate 22 and partition 24, second
Reflecting component 6 is equipped in groove 211.When around baseline, it is assumed that baseline first can be by baseline gear the around, partition 24 from the first groove 210
One groove 210, to the first groove 210 around full length be S0Baseline after, further around to the second groove of another side 211, it is last until
Around completely entire peg or spindle.
By the way that the relative position of reflecting component and receiver is arranged, when sewing work, shuttle peg base line gradually exhausts, and can first disappear
The baseline for consuming the second groove 211, when ruing out of the baseline of the second groove 211, receiver receives the second groove for the first time just
The reflected beams of reflecting component 6 in 211, correspondingly, the peg or spindle that control system receives the photoelectric sensor for the first time are anti-
Signal is penetrated, the length of the also unconsumed baseline of the first groove 210 is initial residual base line length S0。
By the way that partition 24 is arranged in the middle part of shuttle peg winding column 23,23 part of shuttle peg winding column is divided into two regions, is convenient for
Processing, position of the baseline on wrapping post can be clearly distinguished.
Further, as shown in figure 8, partition 24 is to have ring structure jaggy, partition 24 is coaxially set with wrapping post 23
It sets, the indentation, there of partition 24 is arranged in reflecting component 6, and reflecting component 6 is inserted into two grooves 25.
Wherein, 24 radially protruding of partition can limit the volume of groove in the height of 23 rest part of wrapping post, and then limit
Determine the initial residual baseline of baseline, which can specifically be configured according to actual needs.Optionally, lacking on partition 24
Mouth can be set two, and be separated by 180 degree, correspondingly, on each notch be correspondingly arranged a reflecting component 6.
Wherein, the axial length of two grooves 25 can be configured according to actual needs, specifically can be identical, can also be with
For small one and large one, as shown in Figure 8.
Or referring to FIG. 9, wrapping post 23 includes the small diameter portion 27 being arranged in the middle part of axial direction and is arranged in small diameter portion 27
Axial sides large-diameter portion.
Wherein, it should be noted that for two large diameter portion and small diameter portions 27, the radial dimension of small diameter portion 27 is minimum, and two
The radial dimension of a large-diameter portion is all larger than small diameter portion 27, and still, the radial dimension of two large-diameter portions can be identical, can also not
Together.Large diameter portion and small diameter portion 27 is preferably cylindrical body.
Wherein, it should be noted that when around baseline, baseline can be first wound on small diameter portion 27, then cover two sides
Large-diameter portion.According to baseline total amount, after coiling, two large-diameter portions can be covered by baseline, can also be with only one
Large-diameter portion is covered by baseline.By the way that the relative position of reflecting component and receiver is arranged, when the baseline on large-diameter portion runs out of, dew
The reflection detection light beam of reflecting component 6 out, at this point, receiver receives the reflected beams of reflecting component 6 for the first time, correspondingly, control
System receives the peg or spindle reflection signal of the photoelectric sensor for the first time, the length of also unconsumed baseline on small diameter portion
As initial baseline surplus length S0。
Using the wrapping post 23 in the present embodiment, the shaft part for being set as the reserved portion 29 of baseline can be more easily distinguished
Position, without considering the initial position region of coiling.
Further, reflecting component 6 is arranged on large-diameter portion.That is, being not provided with reflecting component 6 on small diameter portion 27.
Wherein, specifically, mounting portion can be set on large-diameter portion 28, is specifically as follows mounting groove or mounting plane,
Reflecting component 6 is arranged in the mounting portion.The mounting portion specifically should match setting with the position of loophole 26, to guarantee light beam energy
It is enough to be irradiated on wrapping post 23 through loophole 26.
Reflecting component 6 is arranged on large-diameter portion 28, may further ensure that receiver is that have baseline on small diameter portion 27
Under the conditions of received the reflected beams.
Further, which further includes blowning installation 5 and gas source.Optionally, blowning installation 5 may include tracheae and
Pressing plate.Transmitter and/or receiver of the gas outlet of blowning installation 5 towards photoelectric sensor 1.Blowning installation 5 is connected to gas source.
The blowning installation 5 can clear up the light outlets of photoelectric sensor 1 and/or receive the sundries of optical port, prevent photoelectric sensing
Failure due to line hair blocks of device 1, is conducive to the stability for improving photoelectric sensor 1, cleaning operation is convenient, scale removal process pair
The normal operation of photoelectric sensor 1 does not influence substantially, can be cleared up while photoelectric sensor 1 is run.In addition, answering
When for sewing devices such as template machines with gas source, gas source can directly utilize the gas source being arranged originally in sewing device, example
It can be such as the air pump in template machine, i.e., directly install blowning installation 5 additional on existing machines, structure is simple, easy for installation.
Sewing machine provided by the present invention be pattern sewing machine when, can specifically include photoelectric sensor, photoelectric sensor mounting plate,
The components such as control system, the shuttle of customization as shown in FIG. 6, sewing machine base and shuttle race, matched screw.Photoelectric sensor peace
Loading board is mounted in the sewing machine base plane after finishing by screw, the laser that photoelectric sensor is launched, through seam
It threads the hole of the revised hole of machine bottom case and shuttle race, is then passed through the gap between Suo Tuo and ox horn, is then passed through shuttle side opening, finally
Laser is penetrated on the reflecting component on roll.
The pattern sewing machine is as follows to a kind of concrete application process of above-mentioned baseline detection method:
Fabric thickness H is inputted to control system, starting sewing machine starts to sew, with the consumption of baseline, the second groove 211
In baseline be first depleted that at this moment, without the blocking of baseline between laser and reflecting component, laser is able to direct irradiation anti-
On light part, laser passes through diffusing reflection, some light senses along backtracking by photoelectric sensor, photoelectric sensor to
Control system issues signal, and control system receives signal, and display screen starts the line amount of prompting residue.Wherein, in design partition 24
When height, remaining line amount is controlled by the space of the first groove 210, and because partition 24 in wrapping post middle position, the
The space of one groove 210 is controlled by the height of partition 24.Power, the thickness of line and sewing one when considering bobbin for winding ground thread
After the line amount of patterns etc. factor, the height of reasonable partition 24 is designed.
The present apparatus uses photoelectric sensor baseline testing principle, in conjunction with pattern sewing machine design feature, cooperates control system, can be with
It realizes the detection of the baseline surplus of pattern sewing machine, realizes when baseline surplus deficiency, system is sent out by simulation sewing to user
Early warning countdown out reminds user to prepare spare shuttle in advance, shortens the bobbin changer time；When surplus is insufficient for next
When stitching is sewed, machine stops working, and prompting changing baseline.
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.
Detailed Jie has been carried out to sewing machine provided by the present invention, bobbin thread detection device and baseline detection method above
It continues.Used herein a specific example illustrates the principle and implementation of the invention, and the explanation of above embodiments is only
It is to be used to help understand method and its core concept of the invention.It should be pointed out that for those skilled in the art
For, it without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention, these improve and repair
Decorations are also fallen within the protection scope of the claims of the present invention.
Claims (10)
1. a kind of baseline detection method, which is characterized in that be applied to sewing machine, the sewing machine includes:
Shuttle, peg or spindle are equipped with the wrapping post for winding baseline；
Reflecting component on the wrapping post；
Photoelectric sensor, the reflecting component can expose back reflection light beam to the photoelectric sensor, the photoelectric sensor
Peg or spindle is generated after receiving the reflected beams reflects signal；
This method comprises:
It is issued warning signal when the peg or spindle for receiving the photoelectric sensor for the first time reflects signal, wherein receive for the first time
When reflecting signal to the peg or spindle, the initial residual base line length on the wrapping post is greater than 0.
2. baseline detection method according to claim 1, which is characterized in that the initial residual base line length is to prestore to determine
Value.
3. baseline detection method according to claim 2 characterized by comprising
When receiving a simulation sewing signal, simulation sewing is carried out to current residual baseline on the wrapping post, wherein institute
Stating simulation sewing signal includes the peg or spindle reflection signal received for the first time；
Judge whether the current residual baseline can be stitched to corresponding current intended position according to the result of the simulation sewing,
If so, when determining that the eedle of sewing component is stitched to the current intended position, it is corresponding locating on prestoring tailoring pattern to work as
Preceding desired location, and the information of the current intended position is shown on tailoring pattern in described prestore.
4. baseline detection method according to claim 3, which is characterized in that further include:
The real time position of the eedle is shown on tailoring pattern in described prestore.
5. baseline detection method according to claim 3, which is characterized in that the result according to the simulation sewing is sentenced
Whether the current residual baseline that breaks can be stitched in corresponding current intended position, if so, also carrying out:
Determine total time needed for the eedle is stitched to the current intended position from current location, and with the required total time into
Row countdown is shown.
6. according to the described in any item baseline detection methods of claim 3 to 5, which is characterized in that the simulation sewing signal is also
The complete signal of seam sent including the sewing component, wherein after receiving the peg or spindle reflection signal for the first time, in the sewing
Component is per the complete signal of the seam for receiving a sewing component and issuing corresponding when completely having stitched a line segment；
The initial residual base line length is greater than the length for prestoring any one line segment in tailoring pattern；
The corresponding current intended position of the current residual baseline is the final position of next line segment.
7. baseline detection method according to claim 6, which is characterized in that described current according to simulation sewing result judgement
Whether remaining baseline can be stitched in current intended position, if it is not, then:
When the eedle is stitched to the corresponding current line segment terminal of the current intended position, sends and stop to the sewing component
Sewing signal.
8. a kind of bobbin thread detection device, which is characterized in that be applied to sewing machine, the sewing machine includes:
Shuttle, peg or spindle are equipped with the wrapping post for winding baseline；
Reflecting component on the wrapping post；
Photoelectric sensor, the reflecting component can expose back reflection light beam to the photoelectric sensor, the photoelectric sensor
Peg or spindle is generated after receiving the reflected beams reflects signal；
The bobbin thread detection device includes:
Processing module, for being issued warning signal when the peg or spindle for receiving the photoelectric sensor for the first time reflects signal,
In, when receiving the peg or spindle reflection signal for the first time, the initial residual base line length on the wrapping post is greater than 0.
9. bobbin thread detection device according to claim 8, which is characterized in that the processing module includes:
Simulation sewing unit, for when receiving simulation and sewing signal, to current residual baseline on the wrapping post into
Row simulation sewing, drives judging unit, wherein the simulation sewing signal includes the peg or spindle reflection letter received for the first time
Number, the initial residual base line length is to prestore definite value；
Judging unit, it is corresponding for judging whether the current residual baseline can be stitched to according to the result of the simulation sewing
Current intended position, if so, the first prewarning unit of driving and the second prewarning unit；
First prewarning unit, when for determining that eedle is stitched to the current intended position, on prestoring tailoring pattern locating for correspondence
Current intended position, and the information of the current intended position is shown on tailoring pattern in described prestore；
Second prewarning unit, when for determining that the eedle of sewing component is stitched to total needed for the current intended position from current location
Between, and countdown is carried out with the required total time and is shown.
10. a kind of sewing machine, including control system and shuttle, which is characterized in that the control system claim 1 to 7
Described in any item baseline detection methods, the wrapping post of the shuttle is multi-diameter shaft, and the reflecting component is set to the wrapping post
On at least one shaft part on；When the peg or spindle that the control system receives the photoelectric sensor for the first time reflects signal,
The starting point of the baseline of the initial residual base line length is located at the point of intersection of two shaft parts.
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| CN201910344134.8A CN109943991A (en) | 2019-04-26 | 2019-04-26 | Baseline detection method, bobbin thread detection device and sewing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110565284A (en) * | 2019-09-20 | 2019-12-13 | 杰克缝纫机股份有限公司 | roller machine, bobbin winding allowance detection device and use method thereof |
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