CN110359190A - A kind of bobbin thread for sewing machine consumption amount estimating method - Google Patents
A kind of bobbin thread for sewing machine consumption amount estimating method Download PDFInfo
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- CN110359190A CN110359190A CN201910661123.2A CN201910661123A CN110359190A CN 110359190 A CN110359190 A CN 110359190A CN 201910661123 A CN201910661123 A CN 201910661123A CN 110359190 A CN110359190 A CN 110359190A
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- sewing
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B59/00—Applications of bobbin-winding or -changing devices; Indicating or control devices associated therewith
- D05B59/02—Devices for determining or indicating the length of thread still on the bobbin
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- Sewing Machines And Sewing (AREA)
Abstract
The present invention provides a kind of bobbin thread for sewing machine consumption amount estimating method, before including the following steps: sewing, the baseline consumption penalty function f (T) based on sewing thickness T is prestored in the electronic control module of sewing machine, the baseline consumption penalty function f (T) is baseline amount consumed by one needle sewing of every sewing；Seam is started；After sewing, the electronic control module of sewing machine obtains the sewing needle number n and needle gage p for having started to be stitched in sewing this section of sewing process of end automatically, and the electronic control module of sewing machine calculates baseline consumption Y:Y=(n-1) * p+n*f (T) in this section of sewing process automatically.The application is in calculating sewing process when baseline consumption, baseline consumption penalty function f (T) is added to be modified baseline consumption Y, consider influence of the sewing thickness to baseline consumption, and then the computational accuracy of baseline consumption in sewing process is improved, ultimately facilitate the detection accuracy for improving baseline surplus.
Description
Technical field
The present invention relates to sewing machine fields, more particularly to a kind of bobbin thread for sewing machine consumption amount estimating method.
Background technique
When sewing sewing, the rotating shuttle and eedle of sewing machine cooperate so that baseline and upper thread are interleaved with each other company sewing machine
Eyelet is threaded on sewing, to form stitching.Upper thread is threaded through in the pinprick of eedle, and eedle does up and down campaign；Rotating shuttle by
Bobbin case and peg or spindle are constituted, and peg or spindle is housed in bobbin case, and baseline is wrapped on peg or spindle.Upper thread is generally longer, there is 3000m-
4000m, and user can observe the number of upper thread line amount at any time in sewing process, therefore upper thread can be replaced in time.But due to seam
It threads the limitation of machine space and mechanism principle, baseline is generally shorter, only 20m-50m, in order to avoid generating ceases to be busy mark on sewing,
Need to monitor the baseline surplus on peg or spindle, convenient for replacement peg or spindle in time.
Further, in some sewing machines, the consumption of baseline in sewing process can be calculated, calculates shuttle for assisting
Baseline surplus on core.Currently, sewing machine electronic control module is inaccurate to the calculating of baseline consumption, only consider when calculating
Sewing needle number and needle gage, do not consider influence of the sewing thickness to baseline consumption, so that the calculating of baseline consumption is not
It is enough accurate, the baseline surplus on peg or spindle finally cannot be precisely calculated, be unfavorable for the raising of sewing quality.
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 bobbin thread for sewing machine to consume meter
Calculation method considers influence of the sewing thickness to baseline consumption, improves the computational accuracy of baseline consumption.
To achieve the above object, the present invention provides a kind of bobbin thread for sewing machine consumption amount estimating method, includes the following steps:
1) before, sewing, the baseline consumption penalty function f based on sewing thickness T is prestored in the electronic control module of sewing machine
(T), the baseline consumption penalty function f (T) is baseline amount consumed by one needle sewing of every sewing；
2) seam, has been started；
3) after, sewing, the electronic control module of sewing machine obtains automatically has started to be stitched to sewing this section of sewing process of end
In sewing needle number n and needle gage p, and the electronic control module of sewing machine calculates baseline consumption Y in this section of sewing process automatically:
Y=(n-1) * p+n*f (T).
Further, in the step 1), the baseline consumption penalty function f (T) are as follows: f (T)=2* λ * T, λ is warp
Test constant value.
Further, the value range of the empirical value λ are as follows: 0 < λ < 1.
Further, empirical value λ=0.5.
As described above, bobbin thread for sewing machine consumption amount estimating method of the present invention, has the advantages that
The application when baseline consumption, is added baseline consumption penalty function f (T) and disappears to baseline in calculating sewing process
Consumption Y is modified, and considers influence of the sewing thickness to baseline consumption, and then improve the meter of baseline consumption in sewing process
Precision is calculated, the detection accuracy for improving baseline surplus is ultimately facilitated.
Detailed description of the invention
Structural schematic diagram of the Fig. 1 between sewing and baseline consumption.
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.
Sewing machine (such as flat seam machine, template machine etc.) is when being sewed, 200 weave in of upper thread 100 and baseline, such as
Shown in Fig. 1, so that sewing 300 be sutured and form stitching on sewing 300.From fig. 1, it can be seen that completing the baseline once sewed
200 consumption also has very big pass with the thickness of sewing 300 in addition to related with the length of stitching formed on sewing 300
System.Based on this, the application provides a kind of bobbin thread for sewing machine consumption amount estimating method comprising following step:
1) before, sewing, the baseline consumption penalty function f based on sewing thickness T is prestored in the electronic control module of sewing machine
(T), the baseline consumption penalty function f (T) is baseline amount consumed by one needle sewing of every sewing；
2) seam, has been started；
3) after, sewing, the electronic control module of sewing machine obtains automatically has started to be stitched to sewing this section of sewing process of end
In sewing needle number n and needle gage p, and the electronic control module of sewing machine calculates baseline consumption Y in this section of sewing process automatically:
Y=(n-1) * p+n*f (T).
The consumption of baseline 200 in the sewing process that above-mentioned bobbin thread for sewing machine consumption amount estimating method calculates, sewing
Machine the first needle opportunity of sewing is needled into sewing 300, sewing machine sew the second needle when sewing 300 on be formed with the line of a needle gage
Mark.Therefore, after primary sewing, as shown in Figure 1, sewing machine has been sewed, n needle will form n-1 needle gage on sewing 300
Stitching, length x=(n-1) * p of this section of stitching, sewing n needle sewing 300 consume baseline amount be n*f (T).The application is added
The stitch length x formed on sewing 300 after primary sewing is modified to actual by baseline consumption penalty function f (T)
Baseline consumption Y:Y=x+n*f (T)=(n-1) * p+n*f (T).Therefore, the application secondary seam after calculating certain sewing
When the amount of baseline 200 consumed by threading, the influence of the thickness T of sewing 300 to the consumption of baseline 200 is considered, and then improve seam
The computational accuracy of baseline consumption during threading ultimately facilitates the detection accuracy for improving baseline surplus.
Further, as shown in Figure 1, the application calculates one needle of every sewing with depth t of the baseline 200 in sewing 300
Baseline amount f (T) consumed by sewing 300, one needle of every sewing will form depth t of two baselines 200 in sewing 300, therefore f
(T)=2t=2* λ * T, t=λ * T, λ is empirical value.Empirical value λ can be carried out big by the sewing to different thick material
It measures and obtains average value after testing, in the present embodiment, the value range of empirical value λ are as follows: 0 < λ < 1；More preferably, empirical value
λ=0.5.Therefore, Y=(n-1) * p+n*f (T)=(n-1) * p+n*2*0.5*T=(n-1) * p+n*T=x+n*T, i.e., successively stitch
The actual consumption length of baseline 200 is that the length x of this section of stitching on sewing 300 adds the needle number n of this section of sewing multiplied by seam after threading
Expect thickness T.
Further, before sewing starts, the control panel in sewing machine can be used to be manually entered sewing thickness T for user
Electronic control module, alternatively, being obtained automatically by the sewing thickness detection apparatus configured in sewing machine by electronic control module in sewing process
Taking sewing thickness T, electronic control module calculates the required baseline consumption Y of this time sewing after sewing according to sewing thickness T automatically,
Its calculated result is more accurate, to improve the precision of baseline detection, avoids forming ceases to be busy mark on sewing 300, improves sewing
Quality.
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 (4)
1. a kind of bobbin thread for sewing machine consumption amount estimating method, it is characterised in that: include the following steps:
1) before, sewing, the baseline consumption penalty function f (T) based on sewing thickness T is prestored in the electronic control module of sewing machine,
The baseline consumption penalty function f (T) is baseline amount consumed by one needle sewing of every sewing；
2) seam, has been started；
3) after, sewing, the electronic control module of sewing machine obtains automatically have been started to be stitched in sewing this section of sewing process of end
Sewing needle number n and needle gage p, and the electronic control module of sewing machine calculates baseline consumption Y in this section of sewing process automatically:
Y=(n-1) * p+n*f (T).
2. bobbin thread for sewing machine consumption amount estimating method according to claim 1, it is characterised in that: in the step 1), institute
State baseline consumption penalty function f (T) are as follows: f (T)=2* λ * T, λ is empirical value.
3. bobbin thread for sewing machine consumption amount estimating method according to claim 2, it is characterised in that: the empirical value λ
Value range are as follows: 0 < λ < 1.
4. bobbin thread for sewing machine consumption amount estimating method according to claim 3, it is characterised in that: the empirical value λ
=0.5.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910661123.2A CN110359190A (en) | 2019-07-22 | 2019-07-22 | A kind of bobbin thread for sewing machine consumption amount estimating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910661123.2A CN110359190A (en) | 2019-07-22 | 2019-07-22 | A kind of bobbin thread for sewing machine consumption amount estimating method |
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| CN110359190A true CN110359190A (en) | 2019-10-22 |
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| CN201910661123.2A Pending CN110359190A (en) | 2019-07-22 | 2019-07-22 | A kind of bobbin thread for sewing machine consumption amount estimating method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111636155A (en) * | 2020-06-09 | 2020-09-08 | 拓卡奔马机电科技有限公司 | Buttonhole bottom line consumption calculation method of buttonholing machine |
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| US5044292A (en) * | 1989-06-09 | 1991-09-03 | Janome Sewing Machine Co., Ltd. | Sewing machine with lower thread supply control means |
| JP3731155B2 (en) * | 2002-01-18 | 2006-01-05 | 蛇の目ミシン工業株式会社 | Sewing machine with lower thread required amount calculation function |
| JP3770606B2 (en) * | 2003-05-02 | 2006-04-26 | 蛇の目ミシン工業株式会社 | Sewing machine with lower thread required amount calculation function |
| CN206828773U (en) * | 2017-01-24 | 2018-01-02 | 深圳市梵思诺时尚服饰有限公司 | Sewing device |
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2019
- 2019-07-22 CN CN201910661123.2A patent/CN110359190A/en active Pending
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| US4566396A (en) * | 1984-09-27 | 1986-01-28 | Tokyo Juki Industrial Co., Ltd | Thread feed mechanism in sewing machine |
| US5044292A (en) * | 1989-06-09 | 1991-09-03 | Janome Sewing Machine Co., Ltd. | Sewing machine with lower thread supply control means |
| JP2727017B2 (en) * | 1989-06-09 | 1998-03-11 | 蛇の目ミシン工業株式会社 | Sewing machine lower thread supply control device |
| JP3731155B2 (en) * | 2002-01-18 | 2006-01-05 | 蛇の目ミシン工業株式会社 | Sewing machine with lower thread required amount calculation function |
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Application publication date: 20191022 |