CN107740232A - Wire-off detection device for sewing machine, detection method and sewing machine - Google Patents
Wire-off detection device for sewing machine, detection method and sewing machine Download PDFInfo
- Publication number
- CN107740232A CN107740232A CN201710975277.XA CN201710975277A CN107740232A CN 107740232 A CN107740232 A CN 107740232A CN 201710975277 A CN201710975277 A CN 201710975277A CN 107740232 A CN107740232 A CN 107740232A
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- sewing machine
- wire
- detection device
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- image
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Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/36—Devices for stopping drive when abnormal conditions occur, e.g. thread breakage
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2305/00—Operations on the work before or after sewing
- D05D2305/32—Measuring
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
This application discloses a kind of wire-off detection device for sewing machine, detection method and sewing machine, belongs to sewing machine technique field.The present apparatus solves original broken thread detector and uses unsafe problem.This wire-off detection device for sewing machine includes support, has on support and crosses line mouth for what line passed through, support is provided with circuit board, and circuit board is provided with the camera relative with crossing line mouth.Due in the present apparatus, judging whether break by camera to realize, rather than realized by short-circuit conductivity principle, therefore, the present apparatus uses safer.
Description
Technical field
The invention belongs to sewing machine technique field, is related to a kind of wire-off detection device for sewing machine and sewing machine.
Background technology
Chinese invention patent (publication number:CN1962990B, publication date:2011.05.04) disclose a kind of sewing machine broken string
Detection means, including mounting seat, the torsion spring being arranged in mounting seat, there is a feeler lever in one end of torsion spring, set on feeler lever
There is a cable-through hole passed through for sewing thread, a sensing chip with torsion spring insulation set, torsion spring and sense are also equipped with mounting seat
Answer piece to be connected in the two poles of the earth of power supply by wire respectively, one is also in series with the circuit between torsion spring and sensing chip and receives electricity
The I/O units of signal are flowed, for judging whether that the control system of broken string is connected with I/O units.
The broken thread detector is arranged on head, torsion spring and sensing chip is exposed and equal conduction, in actual mechanical process,
Electric leakage easily be present, it is more dangerous.
The content of the invention
The present invention is in view of the above-mentioned problems, propose a kind of wire-off detection device for sewing machine safe to use, its technical scheme
It is as follows:
Wire-off detection device for sewing machine, including support, have on described support and cross line mouth for what line passed through, its feature exists
In described support is provided with circuit board, and described circuit board is provided with the camera relative with crossing line mouth.
During the use of this broken thread detector, sewing threads are crossed into line mouth through on support, in sewing process, electricity
Camera on the plate of road is shot to sewing threads, judges whether to break.Due in the present apparatus, being realized by camera
Whether judge broken string, rather than realized by short-circuit conductivity principle, therefore, the present apparatus uses safer.
In addition, as needed, the present apparatus can also shoot the pattern of multiframe sewing threads by camera, at system
Reason, calculates and uses line length.
In above-mentioned wire-off detection device for sewing machine, optical lens, described optical lens are additionally provided with described support
Mirror includes imaging section, and described imaging section is located at camera and crossed between line mouth.
The setting of optical lens imaging section so that camera is to more preferable with the shooting effect of line so that the detection of the present apparatus
Effect is more preferable.
In above-mentioned wire-off detection device for sewing machine, optical lens, described optical lens are additionally provided with described support
Mirror includes assisted parts, and described circuit board is provided with light-emitting component, and described assisted parts is located at light-emitting component and crossed between line mouth.
Light is radiated on sewing threads by assisted parts, improves the shooting effect of camera by light-emitting component so that this
The Detection results of device are more preferable.
In above-mentioned wire-off detection device for sewing machine, described support includes base and lid, and described circuit board is set
Put on base.
Support is set to include base and lid so that the sealing of the present apparatus is preferable, so that the imaging effect of camera
More preferably, the Detection results of the present apparatus are improved.
The invention also provides a kind of sewing machine wire break detection method safe to use, its technical scheme are as follows:
Sewing machine wire break detection method, it is characterised in that comprise the following steps:
A, with camera line for shooting, image is obtained;
B, system process images, testing result is exported.
In this sewing machine wire break detection method, due to by camera detection line situation, therefore using safer.
Multiple image is analyzed system, exports testing result.
In above-mentioned sewing machine wire break detection method, in step B, if image does not change in T1 time ranges,
Output broken string result.
When detecting sewing threads and whether breaking, preset time T 1 in systems.When broken string, it is normally at camera
Sewing threads transfixion, therefore, in the range of time T1, if constant always with line image, judge sewing threads send out
Raw broken string situation, system output broken string result.
In above-mentioned sewing machine wire break detection method, in step B, if image changes in T2 time ranges,
Output line length result.
This method also can detect that with line length, i.e., carries out comparing calculation, output line length result to multiple image.
In above-mentioned sewing machine wire break detection method, in step B, if image does not change in T3 time ranges,
The image that erasing part has stored.
In order to avoid unwanted picture takes storage area, therefore, T3 is preset in systems, is deleted image has partly been stored
Remove, ensure that system there are enough storage areas to store new view data.
The invention also provides a kind of sewing machine safe to use, its technical scheme are as follows:
Sewing machine, it is characterised in that including above-mentioned wire-off detection device for sewing machine.
In this sewing machine, above-mentioned wire-off detection device for sewing machine has been used so that using more convenient.
Brief description of the drawings
Fig. 1 is the structural representation of wire-off detection device for sewing machine;
Fig. 2 is the explosive view of wire-off detection device for sewing machine;
Fig. 3 is another explosive view of wire-off detection device for sewing machine;
In figure, 1, support;11st, line mouth is crossed;12nd, base;13rd, lid;14th, line crossing bracket;15th, threading opening;16th, the first bottom
Seat;17th, second base;2nd, circuit board;3rd, camera;4th, optical lens;41st, imaging section;42nd, assisted parts;5th, light-emitting component.
Embodiment
As shown in Figure 1 to Figure 3, this wire-off detection device for sewing machine includes support 1.Support 1 includes base 12 and is fixed on
Lid 13 on base 12.Support 1 includes base 12 and lid 13, and circuit board 2 is arranged on base 12.Support 1 is set to include
Base 12 and lid 13 so that the sealing of the present apparatus is preferable, so that the imaging effect of camera 3 is more preferable, improves the present apparatus
Detection results.
Specifically, base 12 includes first base 16 and second base 17, circuit board 2 is arranged on first base 16 and second
Between base 17.Circuit board 2 is provided with the camera 3 relative with crossing line mouth 11.
Optical lens 4 is additionally provided with support 1, optical lens 4 includes imaging section 41 and assisted parts 42.Imaging section 41, which is located at, to be taken the photograph
As first 3 and between crossing line mouth 11, circuit board 2 is provided with light-emitting component 5, assisted parts 42 be located at light-emitting component 5 and mistake line mouth 11 it
Between.The setting of the imaging section 41 of optical lens 4 so that camera 3 is to more preferable with the shooting effect of line so that the detection effect of the present apparatus
Fruit is more preferable.In addition, light is radiated on sewing threads by assisted parts 42, improves the shooting effect of camera 3 by light-emitting component 5
Fruit so that the Detection results of the present apparatus are more preferable.
Have on support 1 and cross line mouth 11 for what line passed through, specifically, support 1 is provided with two line crossing brackets 14, line crossing bracket 14
It is provided with threading opening 15.Camera 3 is between two line crossing brackets 14.In use, sewing threads are through two line crossing brackets 14
Threading opening 15, and by crossing line mouth 11 on support 1.
During the use of this broken thread detector, sewing threads are crossed into line mouth 11, sewing process through on support 1
In, the camera 3 on circuit board 2 is shot to sewing threads, judges whether to break.Due in the present apparatus, passing through shooting
First 3 realize to realize whether judge broken string, rather than by short-circuit conductivity principle, and therefore, the present apparatus uses safer.Separately
Outside, as needed, the present apparatus can also shoot the pattern of multiframe sewing threads by camera 3, handled by system, calculate use
Line length.
The invention also provides a kind of sewing machine wire break detection method safe to use, comprise the following steps:
A, with 3 line for shooting of camera, image is obtained;
B, system process images, testing result is exported.
In step B, if image does not change in T1 time ranges, output broken string result.It is in detection sewing threads
During no broken string, preset time T 1 in systems.When broken string, the sewing threads transfixion that is normally at camera 3, because
This, in the range of time T1, if constant always with line image, judges that broken string situation occurs for sewing threads, system output is disconnected
Knot fruit.
In step B, if image changes in T2 time ranges, output line length result.This method can also be examined
Measure and use line length, i.e., comparing calculation, output line length result are carried out to multiple image.
In step B, if image does not change in T3 time ranges, the image that part has stored is wiped.In order to avoid
Unwanted picture takes storage area, therefore, presets T3 in systems, will partly store image-erasing, ensured that system has enough
Storage area stores new view data.The general value for setting T1 is more than T3 value.
In this sewing machine wire break detection method, due to by the detection of camera 3 line situation, therefore using more pacifying
Entirely.Multiple image is analyzed system, exports testing result.
The invention also provides a kind of sewing machine safe to use, including above-mentioned wire-off detection device for sewing machine.
In this sewing machine, above-mentioned wire-off detection device for sewing machine has been used so that using more convenient.
Claims (9)
- Have 1. wire-off detection device for sewing machine, including support (1), on described support (1) and cross line mouth (11) for what line passed through, Characterized in that, described support (1) is provided with circuit board (2), described circuit board (2) is provided with crossing line mouth (11) relatively Camera (3).
- 2. wire-off detection device for sewing machine according to claim 1, it is characterised in that be additionally provided with described support (1) Optical lens (4), described optical lens (4) include imaging section (41), and described imaging section (41) is located at camera (3) and mistake Between line mouth (11).
- 3. wire-off detection device for sewing machine according to claim 1 or 2, it is characterised in that also set on described support (1) There is optical lens (4), described optical lens (4) includes assisted parts (42), and described circuit board (2) is provided with light-emitting component (5), described assisted parts (42) is located at light-emitting component (5) and crossed between line mouth (11).
- 4. wire-off detection device for sewing machine according to claim 1 or 2, it is characterised in that described support (1) includes bottom Seat (12) and lid (13), described circuit board (2) are arranged on base (12).
- 5. sewing machine wire break detection method, it is characterised in that comprise the following steps:A, with camera (3) line for shooting, image is obtained;B, system process images, testing result is exported.
- 6. sewing machine wire break detection method according to claim 5, it is characterised in that in step B, if image is in the T1 times In the range of do not change, then output broken string result.
- 7. sewing machine wire break detection method according to claim 5, it is characterised in that in step B, if image is in the T2 times In the range of change, then output line length result.
- 8. sewing machine wire break detection method according to claim 5, it is characterised in that in step B, if image is in the T3 times In the range of do not change, then the image that has stored of erasing part.
- 9. sewing machine, it is characterised in that including the wire-off detection device for sewing machine as described in claim 1-4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201710975277.XA CN107740232B (en) | 2017-10-16 | 2017-10-16 | Sewing machine broken thread detection device and detection method and sewing machine |
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CN201710975277.XA CN107740232B (en) | 2017-10-16 | 2017-10-16 | Sewing machine broken thread detection device and detection method and sewing machine |
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CN106093052A (en) * | 2016-06-03 | 2016-11-09 | 南京航空航天大学 | A kind of broken yarn detection method |
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JPH07117927A (en) * | 1993-10-28 | 1995-05-09 | Fukui Keihen Kogyo Kk | Thread breakage detecting method and device thereof |
JP2000000386A (en) * | 1998-06-15 | 2000-01-07 | Brother Ind Ltd | Thread cut detector for sewing machine |
EP1083255A1 (en) * | 1999-09-07 | 2001-03-14 | Pegasus Sewing Machine Mfg. Co., Ltd. | Apparatus for detecting thread breakage in sewing machine |
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