CN104499205A - Thread breaking detection device for sewing machine - Google Patents
Thread breaking detection device for sewing machine Download PDFInfo
- Publication number
- CN104499205A CN104499205A CN201510016574.2A CN201510016574A CN104499205A CN 104499205 A CN104499205 A CN 104499205A CN 201510016574 A CN201510016574 A CN 201510016574A CN 104499205 A CN104499205 A CN 104499205A
- Authority
- CN
- China
- Prior art keywords
- sewing machine
- parts
- detection device
- thread breaking
- breaking detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B51/00—Applications of needle-thread guards; Thread-break detectors
Abstract
The invention relates to a thread breaking detection device for a sewing machine. The thread breaking detection device for the sewing machine is relatively large in contact surface, not prone to abrasion in contact discharge with a spring of a gripper of the sewing machine and high in detection sensitivity.
Description
Technical field
The present invention relates to a kind of broken thread detector of Sewing machines
Background technology
The upper and lower through-drive of current industrial sewing machine adopts following 2 kinds of modes:
1, copper sheet (punch forming);
2, infrared electric eye;
Above frame mode 1, due to the copper sheet that copper sheet is thin, form through punch forming, spring on tension disk contacts with it and forms loop, the very little and easily loose contact of contact area, causes long-time short circuit dischange, the end face seriously corroded of copper sheet contact, cause loose contact, burn out detection performance is not good.
Frame mode 2, infrared electric eye is owing to being the principle work by infrared reflection, and Sewing machines uses for a long time, and greasy dirt and fine hair easily adhere on electric eye, easily report disconnection signal by mistake, and the cost of infrared electric eye is very high in addition, maintenance trouble.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of structure simple, broken thread detector easy for installation.
Wire-off detection device for sewing machine of the present invention, is made up of 5 parts, according to accompanying drawing, realizes burn out detection function.
Compared with prior art the beneficial effect of the invention is: wire-off detection device for sewing machine of the present invention, and reasonable in design is easy for installation, manufactures simple, with low cost, dependable performance.Operationally, the tension disk spring of Sewing machines fully contacts with copper piece contact surface, can not cause electric discharge corrosion spring and copper piece, can improve the overall serviceability of Sewing machines like this because of loose contact, accurately judge whether broken string, avoid the dress material made to occur defective products.
Accompanying drawing explanation
Figure of description 1 is the assembling schematic diagram of the broken thread detector of a kind of Sewing machines of the present invention;
In accompanying drawing 1:
1, M3 screw; 2, binding post; 3, broken string contact copper piece; 4, insulating washer; 5, M4 screw.
Detailed description of the invention
Below in conjunction with accompanying drawing 1 and embodiment 2, concrete mode of the present invention is described in further detail.Following instance for illustration of the present invention, but is not used for limiting the scope of the invention.
As shown in the figure, broken string contact copper piece (3) is fixed on casing by M4 screw (5), broken string contact copper piece (3) is insulated by insulating washer (4) and casing, break alarm holding wire is connected to binding post (2), is fixed on broken string contact copper piece (3) by screw (1).
Transmission designs of the present invention is rational in infrastructure, manufactures processing simple, and burn out detection contact surface is large, and detection perform is stablized.
The above is only the preferred embodiment of the present invention; it should be pointed out that the those of ordinary skill for this technology, under the premise without departing from the principles of the invention; can also make some improvement and distortion, these improve and distortion should be considered as protection scope of the present invention.
Claims (1)
1. the broken thread detector of a Sewing machines, it is characterized in that: parts 3 are fixed on head of sewing machine position by parts 5, parts 3 are insulated by parts 4 and casing, holding wire access terminal 2, terminal is fixed on above parts 3 by parts 1, when Sewing machines work, the spring on tension disk contacts with parts 3, forms loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016574.2A CN104499205A (en) | 2015-01-09 | 2015-01-09 | Thread breaking detection device for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016574.2A CN104499205A (en) | 2015-01-09 | 2015-01-09 | Thread breaking detection device for sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104499205A true CN104499205A (en) | 2015-04-08 |
Family
ID=52940652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510016574.2A Pending CN104499205A (en) | 2015-01-09 | 2015-01-09 | Thread breaking detection device for sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104499205A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60198191A (en) * | 1984-03-22 | 1985-10-07 | アイシン精機株式会社 | Needle thread cutting detector of sewing machine |
| JPS63242299A (en) * | 1987-03-31 | 1988-10-07 | ジューキ株式会社 | Yarn cutting detector |
| JPH0984982A (en) * | 1995-09-20 | 1997-03-31 | Kanto Sheet Seisakusho:Kk | Thread breakage detector for sewing machine |
| JP2000350878A (en) * | 1999-06-11 | 2000-12-19 | Janome Sewing Mach Co Ltd | Needle thread breakage detector of sewing machine |
| US20080022908A1 (en) * | 2006-07-28 | 2008-01-31 | Bernina International Ag | Device for monitoring the needle thread |
| CN201268772Y (en) * | 2008-10-13 | 2009-07-08 | 浙江宝石缝纫机股份有限公司 | Thread break induction detection device of sewing machine |
-
2015
- 2015-01-09 CN CN201510016574.2A patent/CN104499205A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60198191A (en) * | 1984-03-22 | 1985-10-07 | アイシン精機株式会社 | Needle thread cutting detector of sewing machine |
| JPS63242299A (en) * | 1987-03-31 | 1988-10-07 | ジューキ株式会社 | Yarn cutting detector |
| JPH0984982A (en) * | 1995-09-20 | 1997-03-31 | Kanto Sheet Seisakusho:Kk | Thread breakage detector for sewing machine |
| JP2000350878A (en) * | 1999-06-11 | 2000-12-19 | Janome Sewing Mach Co Ltd | Needle thread breakage detector of sewing machine |
| US20080022908A1 (en) * | 2006-07-28 | 2008-01-31 | Bernina International Ag | Device for monitoring the needle thread |
| CN201268772Y (en) * | 2008-10-13 | 2009-07-08 | 浙江宝石缝纫机股份有限公司 | Thread break induction detection device of sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150408 |
|
| WD01 | Invention patent application deemed withdrawn after publication |