CN104790133A - Thread breakage detecting device - Google Patents
Thread breakage detecting device Download PDFInfo
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- CN104790133A CN104790133A CN201510234941.6A CN201510234941A CN104790133A CN 104790133 A CN104790133 A CN 104790133A CN 201510234941 A CN201510234941 A CN 201510234941A CN 104790133 A CN104790133 A CN 104790133A
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- tube
- photoelectric tube
- reflecting plate
- detecting device
- thread breakage
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Abstract
The invention discloses a thread breakage detecting device. The thread breakage detecting device is arranged at one side of a bottom thread between a table board and a shuttle of a sewing machine. The thread breakage detecting device comprises a pair of reflectors which are arranged in parallel, wherein the reflectors are parallel to the bottom thread, a shell is connected to one reflector, a luminescent tube and a photoelectric tube are arranged in the shell, the luminescent tube and the photoelectric tube are separated through a light screen, columnar lenses are arranged on the luminescent tube and the photoelectric tube respectively, a socket is connected to the bottom of the luminescent lamp and the bottom of the photoelectric tube, and the bottom thread is located at one side of the luminescent tube and the photoelectric tube. Once thread breakage occurs when a workpiece is sewn through the sewing machine, an electric signal is output by the device instantly, a stopping signal is output after the electric signal is shaped and amplified and passes through a comparison circuit, the sewing machine stops instantly, in this way, the quality of products is guaranteed, and meanwhile production efficiency is improved. The thread breakage detecting device is small in size and can be installed in a narrow space conveniently.
Description
Technical field
The present invention relates to Sewing machines field, in particular to a kind of broken thread detector for industrial Sewing machines.
Background technology
When originally workpiece generation broken string made by the industrial Sewing machines of use (as intelligent template machine), shut down by manually cutting off the electricity supply.Due to the turn up 2500-4000rpm of Sewing machines, the workpiece made in manual stoppage's process often hollow joint one segment length.Like this, made workpiece be fallen back on original position and dismantle bottom line and upper thread, just can restart to make.So not only time-consuming but also the quality of workpiece can be affected.
Summary of the invention
The object of the invention is to the above problem overcoming prior art existence, provide a kind of broken thread detector, when broken string occurs Sewing machines in the process of making workpiece, this device exports a signal of telecommunication at once, and Sewing machines stops at once.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of broken thread detector, be arranged on the bottom line side between sewing machine table and shuttle, comprise pair of parallel reflecting plate, described reflecting plate is parallel with described bottom line, and one of them reflecting plate is connected with housing, is provided with luminous tube and photoelectric tube in described housing, and separated by a shadow shield, described luminous tube and photoelectric tube are respectively equipped with lens pillar, are connected with socket bottom described luminous tube and photoelectric tube, described bottom line is positioned at described luminous tube and photoelectric tube side.
Preferably, described housing is connected on described reflecting plate by a slim nut.
Preferably, described reflecting plate is horizontal n shape, and be parallel reflecting plate up and down, sidepiece is fixed on sewing machine frame.
Further, described lens pillar is the semicylindrical lens of single focal line, and the focal line of two pieces of lens pillars on the same line.
The invention has the beneficial effects as follows:
When broken string occurs Sewing machines in the process of making workpiece, this device exports a signal of telecommunication at once, after shaping, amplification and comparison circuit, then outputting parking signal, Sewing machines stops at once, thus ensure that product quality, improves production efficiency simultaneously.This device volume is little, easy for installation in narrow space.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of description, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is broken thread detector annexation schematic diagram;
Fig. 2 is broken thread detector front view;
Fig. 3 is broken thread detector left view.
Number in the figure illustrates: 1, socket, 2, slim nut, 3, photoelectric tube 4. lens pillar, and 5. shadow shield, 6, luminous tube, 7. housing, 8, reflecting plate, 9, bottom line, 10, sewing machine table, 11, shuttle.
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Shown in Fig. 3, a kind of broken thread detector, is arranged on bottom line 9 side between sewing machine table 10 and shuttle 11, comprise reflecting plate 8, described reflecting plate 8 is horizontal n shape, the reflecting plate 8 that upper plane A, lower plane B are parallel, and sidepiece is fixed on sewing machine frame.The upper plane A of described reflecting plate 8 is parallel with described bottom line 9, the lower plane B of reflecting plate 8 is connected with housing 7 by slim nut 2, luminous tube 6 and photoelectric tube 3 is provided with in described housing 7, and separated by a shadow shield 5, lens pillar 4 is respectively equipped with before described luminous tube 6 and photoelectric tube 3, described lens pillar 4 is semicylindrical lenses of single focal line, and the focal line of two pieces of lens pillars 4 on the same line.Be connected with socket 1 bottom described luminous tube 6 and photoelectric tube 3, described bottom line 9 is positioned at described luminous tube 6 and photoelectric tube 3 side.
Socket 1 is a four-core socket, and four pin of its upper end weld with the pin of luminous tube 6 and photoelectric tube 3 respectively, and four core plugs can be plugged in its lower end, and four core plugs are connected with circuit board.Photoelectric tube 3 is that the optical signal received is converted to the signal of telecommunication, exports the signal of telecommunication, and be input to circuit board by four core plugs by two lines of four-core socket.Luminous tube 6 is followed that circuit board is connected by four-core socket with another two lines of plug and obtains power supply.Lens pillar 4 has two pieces, and be arranged on respectively before luminous tube 6 and photoelectric tube 3, the focal line of two pieces of lens pillars must be on the same line.Shadow shield 5 is the centres being interposed between two pieces of lens pillars 4, and its effect is that the light blocking luminous tube 6 transmitting shines directly on photoelectric tube 3, and positions luminous tube 6 and photoelectric tube 3, makes to set a setting angle to luminous tube 6 and photoelectric tube 3.Housing 7 epoxy resin manufactures, and it is fixing lens pillar 4, luminous tube 6, photoelectric tube 3, shadow shield 5 and socket 1.
The A face of reflecting plate 8 is that beam reflection that luminous tube 6 is launched is to photoelectric tube 3 li.Thread break detector is with the B face of slim nut 2 fixation reflex plate 8.The A face of reflecting plate 8 must be parallel with B face.Reflecting plate 8 is fixed in the frame of Sewing machines by the securing member such as bolt, spring washer.
During the circuit ON of luminous tube 6, the light that luminous tube is launched is become band by lens pillar 4 pack, forms the bottom line searchlighting region of required length and width.Adopt this spline structure, can reach and just can obtain required large intensity of illumination with little luminous flux, so just can improve detection accuracy.
Broken thread detector is mounted between sewing machine table 10 and shuttle 11, and bottom line 9 is parallel with A face, and that is bottom line 9 is parallel with the focal line of lens pillar 4.Focal line, after collinear two pieces of lens pillars 4, distinguishes device luminous tube 6 and photoelectric tube 3.The main shaft of Sewing machines when 170-190 spends, the circuit ON of luminous tube 6, the light that at this moment luminous tube 6 is launched is become band by lens pillar 4 pack, in the path that bottom line 9 moves, form the bottom line 9 searchlighting region of required length and width band shape; Pass through another block lens pillar 4 by the reverberation of bottom line 9 simultaneously, effectively carry out optically focused, make photoelectric tube 3 obtain required luminous flux.Photoelectric tube 3 converts the signal of telecommunication to optical signal and exports, and is input to circuit board by holding wire.Input the signal of telecommunication through shaping, amplification and comparison circuit determine whether export executive signal.
Luminous tube 6 is bulb or semiconductor light-emitting-diode etc., element that namely can be luminous after energising.
Photoelectric tube 3 is phototransistor, light-sensitive element etc., light quantity can be transformed into the element of electricity.
During normal work, photoelectric tube 3 obtains reflecting plate 8 simultaneously and bottom line 9 reflects the light of coming, and optical signal is converted to signal of telecommunication output, is input to circuit board by holding wire; When bottom line 9 ruptures, photoelectric tube 3 acquisition reflecting plates 8 reflect the light of coming, and photoelectric tube 3 converts telecommunications to optical signal and is also input to circuit board by holding wire.Because the luminous flux of two kinds of situations also exists difference, can be differentiated by the comparison circuit of circuit board.Like this, when normal work, control circuit does not export executive signal; When breaking, circuit exports executive signal, and Sewing machines is stopped at once.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a broken thread detector, it is characterized in that: be arranged on bottom line (9) side between sewing machine table (10) and shuttle (11), comprise pair of parallel reflecting plate (8), described reflecting plate (8) is parallel with described bottom line (9), one of them reflecting plate (8) is connected with housing (7), luminous tube (6) and photoelectric tube (3) is provided with in described housing (7), and separated by a shadow shield (5), described luminous tube (6) and photoelectric tube (3) are respectively equipped with lens pillar (4), described luminous tube (6) is connected with socket (1) with photoelectric tube (3) bottom, described bottom line (9) is positioned at described luminous tube (6) and photoelectric tube (3) side.
2. broken thread detector according to claim 1, is characterized in that: described housing (7) is connected on described reflecting plate (8) by a slim nut (2).
3. broken thread detector according to claim 1, is characterized in that: described reflecting plate (8) is horizontal n shape, and be parallel reflecting plate (8) up and down, sidepiece is fixed on sewing machine frame.
4. broken thread detector according to claim 1, is characterized in that: described lens pillar (4) is the semicylindrical lens of single focal line, and the focal line of two pieces of lens pillars (4) on the same line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510234941.6A CN104790133A (en) | 2015-05-11 | 2015-05-11 | Thread breakage detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510234941.6A CN104790133A (en) | 2015-05-11 | 2015-05-11 | Thread breakage detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104790133A true CN104790133A (en) | 2015-07-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510234941.6A Pending CN104790133A (en) | 2015-05-11 | 2015-05-11 | Thread breakage detecting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104790133A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106521836A (en) * | 2015-09-10 | 2017-03-22 | 天津宝盈电脑机械有限公司 | Bottom thread breakage detection device |
| CN107740232A (en) * | 2017-10-16 | 2018-02-27 | 杭州琦星机器人科技有限公司 | Wire-off detection device for sewing machine, detection method and sewing machine |
| CN113161074A (en) * | 2021-05-13 | 2021-07-23 | 安徽持质恒智能设备有限公司 | Broken line detection system and method for frame-type strander |
Citations (5)
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|---|---|---|---|---|
| CN86210059U (en) * | 1986-12-10 | 1987-12-16 | 徐荫厚 | Photoelectric weft detector |
| JP2002369990A (en) * | 2001-06-15 | 2002-12-24 | Brother Ind Ltd | Thread breakage detecting device of sewing machine |
| CN102191635A (en) * | 2010-03-16 | 2011-09-21 | 上海富山精密机械科技有限公司 | Automatic tangent detection structure installed on industrial overedger |
| CN203857971U (en) * | 2014-05-08 | 2014-10-01 | 台州市速普机电有限公司 | Photoelectric control-based automatic thread-cutting detection mechanism of industrial sewing machine |
| CN204690293U (en) * | 2015-05-11 | 2015-10-07 | 吴江万工机电设备有限公司 | Broken thread detector |
-
2015
- 2015-05-11 CN CN201510234941.6A patent/CN104790133A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86210059U (en) * | 1986-12-10 | 1987-12-16 | 徐荫厚 | Photoelectric weft detector |
| JP2002369990A (en) * | 2001-06-15 | 2002-12-24 | Brother Ind Ltd | Thread breakage detecting device of sewing machine |
| CN102191635A (en) * | 2010-03-16 | 2011-09-21 | 上海富山精密机械科技有限公司 | Automatic tangent detection structure installed on industrial overedger |
| CN203857971U (en) * | 2014-05-08 | 2014-10-01 | 台州市速普机电有限公司 | Photoelectric control-based automatic thread-cutting detection mechanism of industrial sewing machine |
| CN204690293U (en) * | 2015-05-11 | 2015-10-07 | 吴江万工机电设备有限公司 | Broken thread detector |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106521836A (en) * | 2015-09-10 | 2017-03-22 | 天津宝盈电脑机械有限公司 | Bottom thread breakage detection device |
| CN107740232A (en) * | 2017-10-16 | 2018-02-27 | 杭州琦星机器人科技有限公司 | Wire-off detection device for sewing machine, detection method and sewing machine |
| CN107740232B (en) * | 2017-10-16 | 2023-02-28 | 琦星智能科技股份有限公司 | Sewing machine broken thread detection device and detection method and sewing machine |
| CN113161074A (en) * | 2021-05-13 | 2021-07-23 | 安徽持质恒智能设备有限公司 | Broken line detection system and method for frame-type strander |
| CN113161074B (en) * | 2021-05-13 | 2024-01-26 | 安徽持质恒智能设备有限公司 | Broken wire detection system and method for frame strander |
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Application publication date: 20150722 |
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| WD01 | Invention patent application deemed withdrawn after publication |