CN102383233A - Automatic yarn-breaking control device and automatic yarn-breaking control method of warping machine - Google Patents
Automatic yarn-breaking control device and automatic yarn-breaking control method of warping machine Download PDFInfo
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- CN102383233A CN102383233A CN2010102681803A CN201010268180A CN102383233A CN 102383233 A CN102383233 A CN 102383233A CN 2010102681803 A CN2010102681803 A CN 2010102681803A CN 201010268180 A CN201010268180 A CN 201010268180A CN 102383233 A CN102383233 A CN 102383233A
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Abstract
The invention discloses an automatic yarn-breaking control device and an automatic yarn-breaking control method of a warping machine. The automatic yarn-breaking control device comprises a yarn separating sheet and a bracket, and also comprises an image sensing device, a light source and an image collecting processing and yarn breaking control device; the yarn separating sheet is arranged on the middle part of the bracket, the image sensing device and the light source are respectively arranged on the bracket and at two sides of the yarn separating sheet, the light source and the image sensing device are arranged inside the same plane, the image sensing device is electrically connected with the image collecting processing and yarn breaking control device, and the image collecting processing and yarn breaking control device is used for receiving and processing image data transmitted by the image sensing device and for controlling the automatic stop of the warping machine when a yarn is broken. The automatic yarn-breaking control device has high automatic yarn breaking detection sensitivity and high broken yarn identification rate, can effectively reduce the woven flaws caused by the unstop of the warping machine when the yarn is broken, can reduce the defective rate of the product and can further reduce the production cost.
Description
Technical field
The present invention relates to a kind of warping machines spider watcher and method, particularly relate to a kind of warping machines digital scan spider watcher and method.
Background technology
The broken yarn self-stop of existing warping machines generally adopts two kinds of spider watchers simultaneously.A kind of is spring contact formula broken yarn self-stop switch integrated on Creel tensioner.The yarn certain force of strain that has been in operation is broken off spring contact; Thereby make Automatic stop switch be in off-state,, lose the contact of tension force rear spring contact in case yarn breaks off; Automatic stop switch is in connection; The action of creel yarn break controller, the normally-closed contact of this creel yarn break controller in the machine control loop breaks off, thereby makes warping machines stop.But the sensitivity of spring contact formula broken yarn self-stop switch is relatively poor, and the broken yarn discrimination is not high, thereby it is higher to make that broken yarn does not stop rate, thereby the warping broken yarn is not processed, and then causes and the broken end fault when compiling braiding, occurs.Another kind of equipment is to add a blowing device on yarn top; Yarn is slabbing behind collection yarn plate yarn sley; Be called yarn sheet, a blower is set above this yarn sheet, blower has the downward blowhole of a row; Air blast of end configuration of blower is to the blowhole air blast, and wind blows to yarn sheet through blowhole row.The LASER Discharge Tube that is arranged on the yarn sheet opposite side is launched a linear laser; Receiving tube receives laser, in case the yarn disconnection, when blowing device is blown over this linear laser with broken yarn; Thereby making continuous laser beam produce interrupts; Thereby receiving tube do not receive laser, and the automatic stop controller action should break off from the normally-closed contact of stop controller in the machine control loop machine was stopped.This kind method subject matter is because broken yarn is easy and the yarn on next door twists together, thereby makes this broken yarn can not blow, and continuous laser beam is produced interrupt, thereby cause detection less than broken yarn.
Summary of the invention
The technical problem that the present invention will solve is relatively poor in order to overcome the broken string automatic stop detection sensitivity of the prior art that the broken string automatic stop detects; The broken yarn discrimination is not high; Thereby make broken yarn not stop the defective that rate is higher and can't confirm the position of broken yarn; Provide a kind of broken string discrimination high, the warping machines spider watcher and the method for broken string position can be provided.
The present invention solves above-mentioned technical problem through following technical proposals:
The invention provides a kind of warping machines spider watcher; This warping machines spider watcher comprises a yarn sley and a support, is characterized in that this warping machines spider watcher also comprises: an image sensing device, a light source and an image acquisition and processing and broken string control device;
Said yarn sley is arranged on the middle part of this support; Described image sensing device and light source are arranged on this support and are located at the both sides of this yarn sley respectively; Wherein this light source and image sensing device are positioned at same plane; Said image sensing device is electrically connected with image acquisition and processing and broken string control device, and wherein this image acquisition and processing and broken string control device are used to receive and handle the view data of this image sensing device transmission and control the automatic stop of warping machines broken string.
Preferably, image sensing device is a ccd image sensor array and a camera lens that is positioned at same plane.
Preferably, image sensing device is a contact-type image sensor array.
Preferably, light source is monochromatic light, infrared light or ultraviolet light.
Preferably, light source is spot light, line source or area source.
The present invention also provides another kind of warping machines spider watcher; This warping machines spider watcher comprises a yarn sley and a support, is characterized in that this warping machines spider watcher also comprises: an image sensing device, a light source and an image acquisition and processing and broken string control device;
Said yarn sley, imageing sensor and light source are arranged on this support; Wherein this yarn sley is arranged on the below of image sensing device and light source; And the light warp yarn travel plane of this light emitted reflexes to this image sensing device; Described this image sensing device is electrically connected with image acquisition and processing and broken string control device, and wherein this image acquisition and processing and broken string control device are used to receive and handle the view data of this image sensing device transmission and control the warping machines broken yarn self-stop.
Preferably, image sensing device is a ccd image sensor array and a camera lens that is positioned at same plane one.
Preferably, image sensing device is a contact-type image sensor array.
Preferably, light source is monochromatic light, infrared light or ultraviolet light.
Preferably, light source is spot light, line source or area source.
The present invention should provide a kind of operation method of aforesaid warping machines spider watcher, was characterized in may further comprise the steps:
S
101, image sensing device collection and generate the view data of yarn sheet, and send that this view data to image collection is handled and the broken string control device;
S
102, image collection is handled and the broken string control device is handled the view data that receives, whether having broken string or heavy yarn take place, if detect broken string or heavy yarn, return step S if searching
101, otherwise get into step S
103
S
103, image collection is handled and broken string control device control warping machines is shut down and prompting broken string position.
Positive progressive effect of the present invention is:
Provide a kind of broken string automatic stop detection sensitivity high, the broken yarn discrimination is high, and warping machines spider watcher and the method that can confirm the position of broken yarn; Effectively reduce the generation of not shutting down the establishment fault that causes owing to broken yarn, reduced the product defect rate, thereby reduced production cost; In addition because the position of broken yarn is provided; Thereby reduced the time that the workman seeks broken yarn, improved and sought the speed of broken yarn, thereby improved production efficiency.
Description of drawings
Fig. 1 is the structure chart of first preferred embodiment of warping machines spider watcher of the present invention.
Fig. 2 is the electrical schematic diagram of warping machines broken yarn self-stop of the present invention.
Fig. 3 is the structure chart of second preferred embodiment of warping machines spider watcher of the present invention.
Fig. 4 is the flow chart of warping machines broken yarn self-stop method of the present invention.
The specific embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to specify technical scheme of the present invention.
Shown in Figure 1 is the structure chart of first preferred embodiment of warping machines spider watcher of the present invention; Wherein the warping machines thread break stop motion among this embodiment comprises appliance stand 1, light source bracket 2, light source 3; Yarn sley support 4; Yarn sley 5, image sensing device 6, this image sensing device 6 is electrically connected with broken string control device 10 with image acquisition and processing through image transmission line 9.
Wherein this yarn sley 5 is arranged at the central authorities of appliance stand 1 through yarn sley support 4, and light source 3 is installed below this appliance stand 1, and the direction of this light source 3 is vertical with the yarn direct of travel.The top of this appliance stand 1 is provided with image sensing device 6, and wherein the direction of this image sensing device 6 and light source 3 are parallel and guarantee that light source 3 and image sensing device 6 are positioned at same plane.
This image acquisition and processing and broken string control device 10 are used to receive and handle the view data that this image sensing device sends; And control warping machines broken string automatic stop; Wherein for this image acquisition and processing and broken string control device 10, those skilled in the art can use the circuit of prior art or device to reach corresponding effects.
Wherein this image sensing device 6 is formed with camera lens 7 by being positioned at conplane CCD (charge-coupled image sensor) imageing sensor 8; In addition; This image sensing device 6 can also use CIS (contact-type image sensor) to come replaced C CD imageing sensor 8 and camera lens 7, thereby reaches the effect that same image generates.
What light source 3 adopted in the present embodiment in addition is a white light line source, and wherein the length of this white light line source is more than or equal to the width of the yarn sheets that form through yarn sley 5 backs, and this line source can use fluorescent tube, CCFL or power saving fluorescent lamps etc.In addition, any monochromatic source, infrared light supply or ultraviolet source etc. and any spot light, line source or area source can be applied among the present invention.
Among this embodiment, the operation principle of warping machines spider watcher is following:
The yarn of warping machines distributes through slabbing after the yarn sley on the yarn sley support 45, promptly forms yarn sheet, and under the irradiation of light source 3, the plane of this yarn sheet is imaged on ccd image sensor 8 through camera lens 7.Collect the image of distribution of yarn at this ccd image sensor 8 after; The view data of this yarn sheet is sent to image acquisition and processing through data line 9 and the control device 10 that breaks carries out after image processing and the computing; Can access current number of yarns and thickness of yarn through yarn sley 5; In case when the situation that has yarn to break off perhaps heavy yarn occurred, promptly the result of the image operation of image acquisition and processing and broken string control device 10 lacked a yarns or the yarn image abnormity is arranged at this moment, the image acquisition and processing and the control device 10 control warping machiness parkings of breaking then; Meanwhile; This image acquisition and processing is also passed through with broken string control device 10 to calculate the position of broken yarn and send position indicating information, thereby make things convenient for the workman to handle broken yarn faster after image processing and the computing.
The electrical principle of warping machines broken yarn self-stop is as shown in Figure 2 in addition; Wherein when the result of image operation of image acquisition and processing and broken string control device 10 are few yarns or when the yarn image abnormity is arranged; When promptly having yarn disconnection or heavy yarn situation to occur; This image acquisition and processing is broken off with the normally-closed contact 11 that broken string control device 10 is controlled in the warping machines control loops, makes warping machines control 12 loop open circuit, thereby warping machines is stopped.
Shown in Figure 3 is the structure chart of second preferred embodiment of warping machines spider watcher of the present invention; Wherein the warping machines thread break stop motion among this embodiment comprises appliance stand 1, light source bracket 2, light source 3; Yarn sley support 4; Yarn sley 5, image sensing device 6, this image sensing device 6 is electrically connected with broken string control device 10 with image acquisition and processing through image transmission line 9.
Wherein this yarn sley 5 places appliance stand 1 through yarn sley support 4; This light source 3 is located at the top of yarn sley 5 through light source bracket 2; This image sensing device 6 also is located at the top of yarn sley 5 in addition; And this light source 3 and yarn travel plane, promptly the position of the surface of yarn sheet and image sensing device 6 relation satisfies the minute surface reflection.
Wherein this image acquisition and processing and broken string control device 10 are used to receive and handle the view data that this image sensing device sends; And control warping machines broken string automatic stop; Wherein for this image acquisition and processing and broken string control device 10, those skilled in the art can use the circuit of prior art or device to reach corresponding effects.
Wherein this image sensing device 6 is formed with camera lens 7 by being positioned at conplane ccd image sensor 8, and in addition, this image sensing device 6 can also use CIS to come replaced C CD imageing sensor 8 and camera lens 7, thereby reaches the effect that same image generates.
What light source 3 adopted in the present embodiment in addition is a white light line source, and wherein the length of this white light line source is more than or equal to the width of the yarn sheets that form through yarn sley 5 backs, and this line source can use fluorescent tube, CCFL or power saving fluorescent lamps etc.In addition, any monochromatic source, infrared light supply or ultraviolet source etc. and any spot light, line source or area source can be used in the present invention.
Among this embodiment, the operation principle of warping machines spider watcher is following:
The yarn of warping machines distributes through slabbing after the yarn sley on the yarn sley support 45, through forming yarn sheet and light source 3 after the reflection of the surface of the yarn sheet that is formed by the yarn through yarn sley 5, is imaged on ccd image sensor through camera lens 7 again.Collect the image of distribution of yarn at this ccd image sensor 8 after; The view data of this yarn sheet is sent to image acquisition and processing through data line 9 and the control device 10 that breaks carries out after image processing and the computing; Can access current number of yarns and thickness of yarn through yarn sley 5; In case when having the perhaps heavy yarn situation of yarn disconnection to occur, promptly the result of the image operation of the image acquisition and processing and the control device 10 that breaks lacks a yarns or the yarn image abnormity is arranged at this moment, the image acquisition and processing and the control device 10 that breaks are controlled the warping machiness parking then; Meanwhile; This image acquisition and processing is also passed through with broken string control device 10 to calculate the position of broken yarn and send position indicating information, thereby make things convenient for the workman to handle broken yarn faster after image processing and the computing.
Shown in Figure 4 is the flow chart of warping machines broken yarn self-stop method of the present invention, comprising step:
Though more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited appended claims.Those skilled in the art can make numerous variations or modification to these embodiments under the prerequisite that does not deviate from principle of the present invention and essence, but these changes and modification all fall into protection scope of the present invention.
Claims (11)
1. warping machines spider watcher; This warping machines spider watcher comprises a yarn sley and a support; It is characterized in that this warping machines spider watcher also comprises: an image sensing device, a light source and an image acquisition and processing and broken string control device;
Said yarn sley is arranged on the middle part of this support; Described image sensing device and light source are arranged on this support and are located at the both sides of this yarn sley respectively; Wherein this light source and image sensing device are positioned at same plane; Said image sensing device is electrically connected with image acquisition and processing and broken string control device, and wherein this image acquisition and processing and broken string control device are used to receive and handle the view data of this image sensing device transmission and control the automatic stop of warping machines broken string.
2. warping machines spider watcher as claimed in claim 1 is characterized in that, image sensing device is a ccd image sensor array and a camera lens that is positioned at same plane.
3. warping machines spider watcher as claimed in claim 1 is characterized in that, image sensing device is a contact-type image sensor array.
4. warping machines spider watcher as claimed in claim 1 is characterized in that, light source is monochromatic light, infrared light or ultraviolet light.
5. warping machines spider watcher as claimed in claim 1 is characterized in that, light source is spot light, line source or area source.
6. warping machines spider watcher; This warping machines spider watcher comprises a yarn sley and a support; It is characterized in that this warping machines spider watcher also comprises: an image sensing device, a light source and an image acquisition and processing and broken string control device;
Said yarn sley, imageing sensor and light source are arranged on this support; Wherein this yarn sley is arranged on the below of image sensing device and light source; And the light warp yarn travel plane of this light emitted reflexes to this image sensing device; Described this image sensing device is electrically connected with image acquisition and processing and broken string control device, and wherein this image acquisition and processing and broken string control device are used to receive and handle the view data of this image sensing device transmission and control the warping machines broken yarn self-stop.
7. warping machines spider watcher as claimed in claim 6 is characterized in that, image sensing device is a ccd image sensor array and a camera lens that is positioned at same plane one.
8. warping machines spider watcher as claimed in claim 6 is characterized in that, image sensing device is a contact-type image sensor array.
9. warping machines spider watcher as claimed in claim 6 is characterized in that, light source is monochromatic light, infrared light or ultraviolet light.
10. warping machines spider watcher as claimed in claim 6 is characterized in that, light source is spot light, line source or area source.
11. the operation method like each described warping machines spider watcher in claim 1 or 6 is characterized in that, may further comprise the steps:
S
101, image sensing device collection and generate the view data of yarn sheet, and send that this view data to image collection is handled and the broken string control device;
S
102, image collection is handled and the broken string control device is handled the view data that receives, whether having broken string or heavy yarn take place, if detect broken string or heavy yarn, return step S if searching
101, otherwise get into step S
103
S
103, image collection is handled and broken string control device control warping machines is shut down and prompting broken string position.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102681803A CN102383233A (en) | 2010-09-02 | 2010-09-02 | Automatic yarn-breaking control device and automatic yarn-breaking control method of warping machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102681803A CN102383233A (en) | 2010-09-02 | 2010-09-02 | Automatic yarn-breaking control device and automatic yarn-breaking control method of warping machine |
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| CN102383233A true CN102383233A (en) | 2012-03-21 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510230A (en) * | 2012-06-20 | 2014-01-15 | 吴江市金真缝纫机有限公司 | Fixed bobbin creel |
| CN107475833A (en) * | 2017-08-30 | 2017-12-15 | 安徽华茂纺织股份有限公司 | Spinning frame single ingot broken wire detection system and method based on image analysis technology |
| CN107904737A (en) * | 2017-11-28 | 2018-04-13 | 长乐万达纺织机械有限公司 | Broken yarn self-stop device for warping based on WIFI communications |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4320874C1 (en) * | 1993-06-23 | 1995-02-02 | Inspec Gmbh | Method for monitoring and in particular counting a family of elongated objects located adjacent to one another |
| DE3832984C2 (en) * | 1988-09-29 | 1997-04-24 | Akzo Gmbh | Method and device for indicating yarn breakage in yarn sheets |
| WO2004072342A1 (en) * | 2003-02-17 | 2004-08-26 | F.I.R.S.T. S.P.A. | Optical system for controlling the unbroken condition of warp yarns in a weaving loom |
| CN1699657A (en) * | 2004-05-18 | 2005-11-23 | 津田驹工业株式会社 | Yarn sheet abnormal checking device |
| JP2006193313A (en) * | 2005-01-17 | 2006-07-27 | Tsudakoma Corp | Method for setting thread break detector in creel device, thread break detection method, and thread break detector in creel device |
| US20090260402A1 (en) * | 2008-04-17 | 2009-10-22 | Eltex Of Sweden Ab | Monitoring apparatus |
| CN201443003U (en) * | 2008-12-30 | 2010-04-28 | 沈阳纺织机械厂有限公司 | Tension detecting and controlling system of large V-shaped creel of warping machine |
| CN201512635U (en) * | 2009-09-24 | 2010-06-23 | 海宁万方经编有限公司 | Yarn-break auto-stop device of warper |
| CN201546095U (en) * | 2009-10-12 | 2010-08-11 | 上海祥网瑞电子科技有限公司 | Transmission-type woven cloth detecting equipment |
| CN201546094U (en) * | 2009-09-22 | 2010-08-11 | 上海祥网瑞电子科技有限公司 | Fabric detection device |
| CN202039177U (en) * | 2010-09-02 | 2011-11-16 | 上海驰网工业科技有限公司 | Broken yarn self-stop device for warping machine |
-
2010
- 2010-09-02 CN CN2010102681803A patent/CN102383233A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3832984C2 (en) * | 1988-09-29 | 1997-04-24 | Akzo Gmbh | Method and device for indicating yarn breakage in yarn sheets |
| DE4320874C1 (en) * | 1993-06-23 | 1995-02-02 | Inspec Gmbh | Method for monitoring and in particular counting a family of elongated objects located adjacent to one another |
| WO2004072342A1 (en) * | 2003-02-17 | 2004-08-26 | F.I.R.S.T. S.P.A. | Optical system for controlling the unbroken condition of warp yarns in a weaving loom |
| CN1699657A (en) * | 2004-05-18 | 2005-11-23 | 津田驹工业株式会社 | Yarn sheet abnormal checking device |
| JP2006193313A (en) * | 2005-01-17 | 2006-07-27 | Tsudakoma Corp | Method for setting thread break detector in creel device, thread break detection method, and thread break detector in creel device |
| US20090260402A1 (en) * | 2008-04-17 | 2009-10-22 | Eltex Of Sweden Ab | Monitoring apparatus |
| CN201443003U (en) * | 2008-12-30 | 2010-04-28 | 沈阳纺织机械厂有限公司 | Tension detecting and controlling system of large V-shaped creel of warping machine |
| CN201546094U (en) * | 2009-09-22 | 2010-08-11 | 上海祥网瑞电子科技有限公司 | Fabric detection device |
| CN201512635U (en) * | 2009-09-24 | 2010-06-23 | 海宁万方经编有限公司 | Yarn-break auto-stop device of warper |
| CN201546095U (en) * | 2009-10-12 | 2010-08-11 | 上海祥网瑞电子科技有限公司 | Transmission-type woven cloth detecting equipment |
| CN202039177U (en) * | 2010-09-02 | 2011-11-16 | 上海驰网工业科技有限公司 | Broken yarn self-stop device for warping machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510230A (en) * | 2012-06-20 | 2014-01-15 | 吴江市金真缝纫机有限公司 | Fixed bobbin creel |
| CN107475833A (en) * | 2017-08-30 | 2017-12-15 | 安徽华茂纺织股份有限公司 | Spinning frame single ingot broken wire detection system and method based on image analysis technology |
| CN107904737A (en) * | 2017-11-28 | 2018-04-13 | 长乐万达纺织机械有限公司 | Broken yarn self-stop device for warping based on WIFI communications |
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Application publication date: 20120321 |