CN104372538A - Bottom wire detection control system and method based on optical fiber sensor and applied to industrial sewing machine - Google Patents
Bottom wire detection control system and method based on optical fiber sensor and applied to industrial sewing machine Download PDFInfo
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- CN104372538A CN104372538A CN201410567532.3A CN201410567532A CN104372538A CN 104372538 A CN104372538 A CN 104372538A CN 201410567532 A CN201410567532 A CN 201410567532A CN 104372538 A CN104372538 A CN 104372538A
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- fibre optical
- bottom line
- peg
- spindle
- optical sensor
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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
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/08—Loop takers, e.g. loopers for lock-stitch sewing machines
- D05B57/10—Shuttles
- D05B57/14—Shuttles with rotary hooks
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/26—Bobbin holders or casings; Bobbin holder or case guards; Bobbin discharge devices
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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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- 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)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention provides a bottom wire detection control system based on an optical fiber sensor and applied to an industrial sewing machine. The system comprises an electric control module, a rotating shuttle and a motor. The rotating shuttle comprises a shuttle case and a shuttle core. The shuttle core comprises a winding post and flanges arranged at the two ends of the winding post. A reflective sheet is fixed to the outer circumferential face of the winding post, and bottom wires are wound around the winding post. The optical fiber sensor is fixed to a shuttle support. The shuttle case is provided with an optical fiber emitter inlet and a gap, wherein the optical fiber emitter inlet and the gap are communicated with each other. The optical fiber sensor is connected with the electric control module through a signal conditioning control circuit. The electric control module is also connected with the motor through an output circuit. The bottom wire detection control system applied to the industrial sewing machine can judge whether the shuttle core is not installed in the shuttle case and whether the bottom wires on the shuttle core are enough according to optical signals of reflected light detected by the optical fiber sensor; meanwhile, the optical fiber sensor is adopted as a detection element, so that the system is high in sensitivity, higher and more reliable in detection performance and higher in anti-electromagnetic-interference capability.
Description
Technical field
The present invention relates to a kind of bobbin thread for sewing machine detection technique, particularly relate to a kind of industrial sewing machine bottom line detecting and controlling system based on Fibre Optical Sensor and method.
Background technology
One or more sewing thread used by Sewing machines, and sewing is formed one or more stitchings, makes the machine that one or more layers sewing interweaves or unites by a seam.Sewing function makes the goods such as the fabrics such as cotton, fiber crops, silk, hair, artificial fibre and leather, plastics, paper, and the stitching neat appearance of stitching out, firmly smooth, sewing velocity is fast, easy to use.Sewing machines is divided into domestic sewing machine and industrial sewing machine two kinds, and wherein, industrial sewing machine major part belongs to general Sewing machines, comprises flat seam machine, chain seam machine, quilting machines, overlock machine and flat seaming machine etc.
Sewing machines when sewing fabric, the rotating shuttle of Sewing machines and eedle cooperatively interact with by bottom line and upper thread mutually intertexture lock-stitch on fabric, thus form stitching.Upper thread is located in the pinprick of eedle, eedle do rise, descending motion; Rotating shuttle is made up of bobbin case and peg or spindle, and peg or spindle is housed in bobbin case, and bottom line is wrapped on peg or spindle.Longer and the upper thread of upper thread is generally all mounted in the outside of Sewing machines, and namely whether sewing personnel can be observed upper thread by naked eyes and be finished; And rotating shuttle is generally mounted in the base plate of Sewing machines, and the base line length that peg or spindle is wound around is also very limited, therefore sewing personnel are difficult to observe the surplus of bottom line on peg or spindle by naked eyes or whether have installation peg or spindle, unless occurred in sewing process in coil without bottom line phenomenon, so just judge that bottom line is finished or judges not install peg or spindle, but, now on sewing, form one section of stitching floated on sewing, thus affect sewing quality and efficiency.Therefore, bottom line supervising device is installed in industrial sewing machine and just seems extremely important, carry out reminding user with this and change peg or spindle in time or peg or spindle is installed, thus ensure sewing quality and efficiency, reduce frequency of doing over again.
Chinese invention patent application description CN103334241A discloses a kind of use in sewing machine bottom line supervising device, described Sewing machines comprises base plate, and the rotating shuttle be arranged on described base plate, described rotating shuttle comprises bobbin case and peg or spindle, the wrapping post of described peg or spindle is housed in bobbin case completely, the wrapping post of described peg or spindle is provided with reflective surface, the sidewall of described bobbin case is offered a loophole; Described base plate is provided with a photoelectric sensor, described photoelectric sensor is positioned at the outside of described bobbin case, and described photoelectric sensor is made up of receiver and transmitter, and described receiver and transmitter are all facing to described loophole.This use in sewing machine bottom line supervising device is when bottom line runs low, and the reflective surface on shuttle peg winding post can reveal gradually, thus the signal that receiver is received changes, and judges whether bottom line is finished with this.But there is following defect in actual use in above-mentioned use in sewing machine bottom line supervising device:
1, when in rotating shuttle during neglected loading peg or spindle, then receiver does not receive signal, itself and have situation during bottom line to be living, therefore it can not judge whether neglected loading peg or spindle;
2, in bottom line observation process, photoelectric sensor is easily subject to extraneous electromagnetic interference, and the sensitivity of photoelectric sensor is not high, thus causes bottom line monitoring accuracy low, and device whole monitoring is unreliable;
3, inscribe at some time; when receiver receives the reverberation from the reflective surface of shuttle peg winding post; bottom line on shuttle peg winding post exhausts; therefore after Sewing machines is made shutdown action and changed peg or spindle; again the sewing made has one section of stitching seam, thus cause sewing unsightly or damage.
Summary of the invention
Whether the shortcoming of prior art in view of the above, the object of the present invention is to provide and a kind ofly can detect whether neglected loading peg or spindle, also can detect bottom line on peg or spindle and be finished and the high industrial sewing machine bottom line detecting and controlling system based on Fibre Optical Sensor of accuracy of detection.
For achieving the above object, the invention provides a kind of industrial sewing machine bottom line detecting and controlling system based on Fibre Optical Sensor, comprise the electronic control module of Sewing machines, be arranged on the rotating shuttle in Sewing machine shuttle frame, and for driving the motor of Sewing machines action, described rotating shuttle comprises bobbin case and is arranged on the peg or spindle in bobbin case, described peg or spindle comprises wrapping post and is located at the flange at wrapping post two ends, the outer peripheral face of described wrapping post is fixed with a reflective sheeting, and wrapping post is wound with bottom line, described shuttle frame is fixed with a Fibre Optical Sensor, bobbin case is provided with the fibre optical transmission entrance and breach that are interconnected, when in bobbin case without peg or spindle time, described Fibre Optical Sensor is just to fibre optical transmission entrance and breach, when having peg or spindle in bobbin case and bottom line amount is enough, described Fibre Optical Sensor is just to fibre optical transmission entrance and from the bottom line the wrapping post that fibre optical transmission porch is exposed, when have peg or spindle in bobbin case and bottom line quantity not sufficient time, described Fibre Optical Sensor is just to fibre optical transmission entrance and from the reflective sheeting the wrapping post that fibre optical transmission porch is exposed, described Fibre Optical Sensor is connected with electronic control module by a signal condition control circuit, and described electronic control module is also connected with motor by an output circuit.
Further, described shuttle frame is provided with an installing plate upwards extended, and offers a holddown groove in this installing plate, and described Fibre Optical Sensor to be located in described holddown groove and to be tight fit with holddown groove.
Preferably, described bobbin case comprises a bobbin case body in the form of annular discs and from the outward flange of bobbin case body to the rib of downward-extension, described fibre optical transmission entrance is located on rib, form described breach between the two ends of described rib, described fibre optical transmission entrance and breach symmetry are located at the both sides of bobbin case body.
Further, the outer peripheral face of described wrapping post offers a circumferential slot distributed along the circumference of wrapping post, in this circumferential slot, be wound with bottom line.
Preferably, the outer peripheral face of described wrapping post offers a groove, described reflective sheeting is positioned at this groove and pastes with wrapping post and is connected.
Preferably, the degree of depth of described groove is greater than the degree of depth of circumferential slot.
As mentioned above, the industrial sewing machine bottom line detecting and controlling system based on Fibre Optical Sensor that the present invention relates to, has following beneficial effect:
This industrial sewing machine bottom line detecting and controlling system the optical signal of reverberation detected by Fibre Optical Sensor can to judge in bobbin case that whether the bottom line amount on whether neglected loading peg or spindle and peg or spindle is enough, when not installing the bottom line quantity not sufficient on peg or spindle or peg or spindle in bobbin case, electronic control module can control motor stalls by output circuit, namely control Sewing machines to quit work, machinist carries out installation peg or spindle again or changes peg or spindle, thus the regularity of stitching and aesthetics on guarantee sewing, improve sewing efficiency and quality; In addition, adopt Fibre Optical Sensor as detecting element in this control system, owing to employing prism in the reflector of Fibre Optical Sensor, therefore Fibre Optical Sensor and photoelectric sensor of the prior art are Comparatively speaking, it is highly sensitive, detection perform is higher, more reliable, and its anti-electromagnetic interference capability is strong, thus improve the accuracy of detection of whole control system, ensure the reliability that bottom line detects.
Another object of the present invention is to provide a kind of and can detect whether neglected loading peg or spindle, also can detect bottom line on peg or spindle and whether be finished and the high industrial sewing machine bottom line detection control method based on Fibre Optical Sensor of accuracy of detection.
For achieving the above object, the invention provides a kind of industrial sewing machine bottom line detection control method based on Fibre Optical Sensor, comprise industrial sewing machine bottom line detecting and controlling system as above, described industrial sewing machine bottom line detection control method comprises the steps:
A, in signal condition control circuit, pre-set basic parameter, described basic parameter for Fibre Optical Sensor receive the reflected light signal reflected from reflective sheeting after the measurement parameter that obtains;
The light source of B, Fibre Optical Sensor inside sends light, and light is irradiated to fibre optical transmission porch after the Optical Fiber Transmission in Fibre Optical Sensor, and Fibre Optical Sensor receives the sensed light signal that fires back from fibre optical transmission entrance place and exports a detected parameters;
Detected parameters is transferred to signal condition control circuit by C, Fibre Optical Sensor, signal condition control circuit exports a consequential signal after detected parameters and described basic parameter being compared, and whether electronic control module reception result signal also controls motor according to this consequential signal by output circuit and rotate;
When detected parameters is zero, described consequential signal is " without peg or spindle ", then electronic control module controls motor stalls by output circuit;
When detected parameters non-vanishing and different from basic parameter time, described consequential signal is " have peg or spindle and bottom line amount is enough ", then electronic control module judges that bottom line is not finished and controls motor by output circuit and is rotated further;
When detected parameters non-vanishing and identical with basic parameter time, described consequential signal is " having peg or spindle and bottom line quantity not sufficient ", then electronic control module judges that bottom line runs low and controls motor stalls by output circuit.
Further, described electronic control module is also connected with a user interface by described output circuit, and this user interface is a display screen; When consequential signal is for " without peg or spindle " or " having peg or spindle and bottom line quantity not sufficient ", the mode with Word message on described display screen shows error information.
Preferably, described display screen also shows error information in the mode of icon information.
As mentioned above, the industrial sewing machine bottom line detection control method based on Fibre Optical Sensor that the present invention relates to, has following beneficial effect:
This industrial sewing machine bottom line detection control method the optical signal of reverberation detected by Fibre Optical Sensor can to judge in bobbin case that whether the bottom line amount on whether neglected loading peg or spindle and peg or spindle is enough, when not installing the bottom line quantity not sufficient on peg or spindle or peg or spindle in bobbin case, electronic control module can control motor stalls by output circuit, namely control Sewing machines to quit work, machinist carries out installation peg or spindle again or changes peg or spindle, thus the regularity of stitching and aesthetics on guarantee sewing, improve sewing efficiency and quality; In addition, adopt Fibre Optical Sensor as detecting element in this control method, owing to employing prism in the reflector of Fibre Optical Sensor, therefore Fibre Optical Sensor and photoelectric sensor of the prior art are Comparatively speaking, it is highly sensitive, detection perform is higher, more reliable, and its anti-electromagnetic interference capability is strong, thus improve the accuracy of detection of whole control method, ensure the reliability that bottom line detects.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is structural representation of the present invention.
Fig. 3 is the structural representation of rotating shuttle and shuttle frame in Fig. 2.
Fig. 4 is the top view of Fig. 2.
Fig. 5 is the structural representation of Fibre Optical Sensor and rotating shuttle in the present invention.
Fig. 6 is the structural representation of peg or spindle in the present invention.
Fig. 7 is the structural representation of bobbin case in the present invention.
Fig. 8 is the top view of Fig. 5.
Fig. 9 is the structural representation of Fibre Optical Sensor and peg or spindle in Fig. 8.
Element numbers explanation
1 electronic control module
2 shuttle framves
21 installing plates
22 holddown grooves
3 rotating shuttles
31 bobbin cases
311 fibre optical transmission entrances
312 breach
313 bobbin case body
314 ribs
32 peg or spindles
321 wrapping posts
322 flanges
323 reflective sheetings
324 circumferential slots
325 grooves
4 motors
5 Fibre Optical Sensors
6 signal condition control circuits
7 output circuits
8 user interfaces
9 needle plates
10 shanks
11 eedles
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this description can understand other advantages of the present invention and effect easily.
Notice, structure, ratio, size etc. that this description institute accompanying drawings illustrates, content all only in order to coordinate description to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, still all should drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, quote in this description as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
The invention provides a kind of industrial sewing machine bottom line detecting and controlling system based on Fibre Optical Sensor, whether enough for detecting in bobbin case the bottom line amount that whether neglected loading peg or spindle and peg or spindle are wound around.As depicted in figs. 1 and 2, described industrial sewing machine bottom line detecting and controlling system comprise Sewing machines electronic control module 1, be arranged on rotating shuttle 3 in Sewing machine shuttle frame 2 and for driving the motor 4 of Sewing machines action, described shuttle frame 2 is positioned at the below of sewing machine needle board 9, the top of sewing machine needle board 9 is provided with shank 10, and the lower end of shank 10 is provided with eedle 11; See Fig. 5 to Fig. 7, the peg or spindle 32 that described rotating shuttle 3 comprises bobbin case 31 and is arranged in bobbin case 31, described peg or spindle 32 comprises wrapping post 321 and is located at the flange 322 at wrapping post 321 two ends, the outer peripheral face of described wrapping post 321 is fixed with a reflective sheeting 323 and wrapping post 321 is wound with bottom line; See Fig. 3 and Fig. 4, described shuttle frame 2 is fixed with a Fibre Optical Sensor 5, bobbin case 31 is provided with the fibre optical transmission entrance 311 and breach 312 that are interconnected, described Fibre Optical Sensor 5 be positioned at bobbin case 31 outside and just to the fibre optical transmission entrance 311 on bobbin case 31; As shown in Figure 8 and Figure 9, when in bobbin case 31 without peg or spindle 32 time, described Fibre Optical Sensor 5 is just to fibre optical transmission entrance 311 and breach 312; When having peg or spindle in bobbin case 31 and bottom line amount is enough, described Fibre Optical Sensor 5 is just to the bottom line on fibre optical transmission entrance 311 and the wrapping post 321 that exposes from fibre optical transmission entrance 311; When have peg or spindle in bobbin case 31 and bottom line quantity not sufficient time, described Fibre Optical Sensor 5 is just to the reflective sheeting 323 on fibre optical transmission entrance 311 and the wrapping post 321 that exposes from fibre optical transmission entrance 311; Described Fibre Optical Sensor 5 is connected with electronic control module 1 by a signal condition control circuit 6, and described electronic control module 1 is also connected with motor 4 by an output circuit 7.
In above-mentioned control system, electronic control module 1 is connected with Fibre Optical Sensor 5 by signal condition control circuit 6, thus provides power supply for Fibre Optical Sensor 5; Fibre Optical Sensor 5 inside is integrated with light source, light source sends light, the Optical Fiber Transmission back reflection of light in Fibre Optical Sensor 5 is to fibre optical transmission entrance 311 place on bobbin case 31, simultaneously light reflects to Fibre Optical Sensor 5 (described detected object is the bottom line or reflective sheeting 323 that expose from fibre optical transmission entrance 311) by the detected object at fibre optical transmission entrance 311 place again, therefore Fibre Optical Sensor 5 receives the sensed light signal reflected from fibre optical transmission entrance 311 place.Sensed light signal through the modulator of the optical fiber feeding Fibre Optical Sensor 5 of Fibre Optical Sensor 5, thus obtains detected parameters; Signal condition control circuit 6 receives the detected parameters from Fibre Optical Sensor 5, and the judgement whether having the bottom line amount of installing on peg or spindle 32 and peg or spindle 32 whether enough is made in bobbin case 31 according to the size of detected parameters, electronic control module 1 receives the output signal from signal condition control circuit 6 and controls motor 4 the need of stopping operating according to this output signal.
The invention still further relates to a kind of industrial sewing machine bottom line detection control method based on Fibre Optical Sensor, comprise industrial sewing machine bottom line detecting and controlling system as above, described industrial sewing machine bottom line detection control method comprises the steps:
A, in signal condition control circuit 6, pre-set basic parameter, described basic parameter for Fibre Optical Sensor 5 receive the reflected light signal reflected from reflective sheeting 323 after the measurement parameter that obtains;
The light source of B, Fibre Optical Sensor 5 inside sends light, light is irradiated on the detected object that exposes from fibre optical transmission entrance 311 after the Optical Fiber Transmission in Fibre Optical Sensor 5, light reflects to Fibre Optical Sensor 5 by detected object, therefore Fibre Optical Sensor 5 receives the sensed light signal that fires back from fibre optical transmission entrance 311 place detected object and exports a detected parameters;
Detected parameters is transferred to signal condition control circuit 6 by C, Fibre Optical Sensor 5, signal condition control circuit 6 exports a consequential signal after detected parameters and described basic parameter being compared, and whether electronic control module 1 reception result signal also controls motor 4 according to this consequential signal by output circuit 7 and rotate;
When detected parameters is zero, described consequential signal is " without peg or spindle ", then electronic control module 1 controls motor 4 by output circuit 7 and stops operating;
When detected parameters non-vanishing and different from basic parameter time, described consequential signal is " have peg or spindle and bottom line amount is enough ", then electronic control module 1 judges that bottom line is not finished and controls motor 4 by output circuit 7 and is rotated further;
When detected parameters non-vanishing and identical with basic parameter time, described consequential signal is " having peg or spindle and bottom line quantity not sufficient ", then electronic control module 1 judges that bottom line runs low and controls motor 4 by output circuit 7 and stops operating.
Specifically, when being provided with peg or spindle 32 in bobbin case 31 and bottom line amount on the wrapping post 321 of peg or spindle 32 is enough, then bottom line is wound around the wrapping post 321 of full peg or spindle 32, reflective sheeting 323 on wrapping post 321 is covered by bottom line completely, now, Fibre Optical Sensor 5 receives the sensed light signal that the bottom line that exposes since fibre optical transmission entrance 311 place reflects.The intensity of described sensed light signal is non-vanishing, but because bottom line is different to light reflectance and reflective sheeting on wrapping post 321 323 pairs of light reflectance, therefore compared with the reflected light signal that reflects of sensed light signal and reflective sheeting 323, the luminous intensity of sensed light signal, wavelength, frequencies etc. all there occurs change, thus the detected parameters making Fibre Optical Sensor 5 export is not identical with basic parameter, therefore signal condition control circuit 6 is by exporting the consequential signal of " have peg or spindle and bottom line amount is enough " after Determination optical signal and basic parameter, now, electronic control module 1 does not make instruction, motor 4 is rotated further, Sewing machines maintenance operating state.
When in bobbin case 31, peg or spindle 32 is installed and bottom line quantity not sufficient on the wrapping post 321 of peg or spindle 32 time, the bottom line then wrapping post 321 is wound around is less, reflective sheeting 323 on wrapping post 321 not completely cover by bottom line or block, now, Fibre Optical Sensor 5 receives the sensed light signal that the reflective sheeting 323 that exposes since fibre optical transmission entrance 311 place reflects.The intensity of described sensed light signal is non-vanishing, and compared with the reflected light signal that reflects of sensed light signal and reflective sheeting 323, the luminous intensity, wavelength, frequency etc. of sensed light signal do not change, therefore the detected parameters that Fibre Optical Sensor 5 exports is identical with basic parameter, therefore signal condition control circuit 6 is by exporting the consequential signal of " having peg or spindle and bottom line quantity not sufficient " after Determination optical signal and basic parameter, now, electronic control module 1 controls motor 4 and stops operating, and machinist carries out the operation changing peg or spindle 32.
When causing not installing peg or spindle 32 in bobbin case 31 because of artificial problem, when light then in Fibre Optical Sensor 5 reflexes to fibre optical transmission entrance 311 place on bobbin case 31, light directly penetrates from the breach 312 of bobbin case 31 other end, therefore light can not reflect to Fibre Optical Sensor 5 by fibre optical transmission entrance 311 place, therefore the intensity of sensed light signal that Fibre Optical Sensor 5 receives is zero, namely the detected parameters that Fibre Optical Sensor 5 exports also is zero, signal condition control circuit 6 exports one after receiving zero detected parameters that Fibre Optical Sensor 5 transmits " without peg or spindle " consequential signal, now, electronic control module 1 controls motor 4 and stops operating, machinist carries out the operation of installing peg or spindle 32.
In sum, the industrial sewing machine bottom line detecting and controlling system based on Fibre Optical Sensor 5 that the present invention relates to and method the optical signal of reverberation detected by Fibre Optical Sensor 5 can to judge in bobbin case 31 whether neglected loading peg or spindle 32, and whether bottom line amount on peg or spindle 32 is enough, when not installing the bottom line quantity not sufficient on peg or spindle 32 or peg or spindle 32 in bobbin case 31, electronic control module 1 can control motor 4 by output circuit 7 and stop operating, namely control Sewing machines to quit work, machinist carries out installation peg or spindle 32 again or changes peg or spindle 32, the control system that the present invention relates to and method automaticity high, decrease the mechanical positioning caused because of the neglected loading of peg or spindle 32, also reduce the crack caused because of the disappearance of bottom line, operative employee does over again phenomenon, thus the regularity of stitching and aesthetics on guarantee sewing, improve sewing efficiency and quality, reduce the labour intensity of operator, bring convenience to client.In addition, adopt Fibre Optical Sensor 5 as detecting element in this control system and method, prism is employed in reflector due to Fibre Optical Sensor 5, therefore Fibre Optical Sensor 5 and photoelectric sensor of the prior art are Comparatively speaking, it is highly sensitive, detection perform is higher, more reliable, and its anti-electromagnetic interference capability is strong, thus improve the accuracy of detection of whole control system, ensure the reliability that bottom line detects.
Further, as shown in Figure 1, described electronic control module 1 is also connected with a user interface 8 by described output circuit 7, when the bottom line on neglected loading peg or spindle 32 in bobbin case 31 or peg or spindle 32 runs low, user interface 8 provides corresponding error information for user, installs peg or spindle 32 or change peg or spindle 32 with reminding user; In the present embodiment, described user interface 8 is a display screen, when signal condition control circuit 6 export consequential signal for " without peg or spindle " or " having peg or spindle and bottom line quantity not sufficient " time, the mode that electronic control module 1 is also controlled with Word message on display screen by output circuit 7 shows error information.Preferably, described display screen also shows error information in the mode of icon information.
Further, because the space of Sewing machines inside is very limited, in order to the original inner space of Sewing machines can be made full use of, as shown in Figure 3 and Figure 4, described shuttle frame 2 is provided with an installing plate upwards extended 21, offers a holddown groove 22 in this installing plate 21, described Fibre Optical Sensor 5 to be located in described holddown groove 22 and to be tight fit with holddown groove 22, thus be convenient to the installation of Fibre Optical Sensor 5, take up room to reduce it, make overall structure compacter.
Preferably, see Fig. 7, described bobbin case 31 comprises a bobbin case body in the form of annular discs 313 and from the outward flange of bobbin case body 313 to the rib 314 of downward-extension, described fibre optical transmission entrance 311 is located on rib 314, form described breach 312 between the two ends of described rib 314, described fibre optical transmission entrance 311 and breach 312 symmetry are located at the both sides of bobbin case body 313.
Further, see Fig. 6, the outer peripheral face of described wrapping post 321 offers a circumferential slot 324 distributed along the circumference of wrapping post 321, bottom line is wound with in this circumferential slot 324, when light sensor detects the sensed light signal that reflective sheeting 323 reflects, remaining bottom line is also had in circumferential slot 324, thus when avoiding reporting an error bottom line quantity not sufficient being detected, in circumferential slot 324, remaining bottom line still can ensure to stitch complete operation, and sewing can not be damaged, and then ensure aesthetics and the regularity of stitching on sewing.
Preferably, described reflective sheeting 323 with the syndeton of peg or spindle 32 is: as shown in Figure 6, the outer peripheral face of described wrapping post 321 offers a groove 325, described reflective sheeting 323 is positioned at this groove 325 and pastes with wrapping post 321 and is connected; And the degree of depth of described groove 325 is greater than the degree of depth of circumferential slot 324.
In sum, the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (9)
1. the bottom line detecting and controlling system of the industrial sewing machine based on Fibre Optical Sensor, comprise the electronic control module (1) of Sewing machines, be arranged on the rotating shuttle (3) in Sewing machine shuttle frame (2), and for driving the motor (4) of Sewing machines action, described rotating shuttle (3) comprises bobbin case (31) and is arranged on the peg or spindle (32) in bobbin case (31), described peg or spindle (32) comprises wrapping post (321) and is located at the flange (322) at wrapping post (321) two ends, the outer peripheral face of described wrapping post (321) is fixed with a reflective sheeting (323), and wrapping post (321) is wound with bottom line, it is characterized in that: described shuttle frame (2) is fixed with a Fibre Optical Sensor (5), bobbin case (31) is provided with the fibre optical transmission entrance (311) and breach (312) that are interconnected, time in the bobbin case (31) without peg or spindle (32), described Fibre Optical Sensor (5) is just to fibre optical transmission entrance (311) and breach (312), when having peg or spindle in bobbin case (31) and bottom line amount is enough, described Fibre Optical Sensor (5) is just to the bottom line on fibre optical transmission entrance (311) and the wrapping post (321) that exposes from fibre optical transmission entrance (311), when have peg or spindle in bobbin case (31) and bottom line quantity not sufficient time, described Fibre Optical Sensor (5) is just to the reflective sheeting (323) on fibre optical transmission entrance (311) and the wrapping post (321) that exposes from fibre optical transmission entrance (311), described Fibre Optical Sensor (5) is connected with electronic control module (1) by a signal condition control circuit (6), and described electronic control module (1) is also connected with motor (4) by an output circuit (7).
2. industrial sewing machine bottom line detecting and controlling system according to claim 1, it is characterized in that: described shuttle frame (2) is provided with an installing plate upwards extended (21), offer a holddown groove (22) in this installing plate (21), described Fibre Optical Sensor (5) to be located in described holddown groove (22) and to be tight fit with holddown groove (22).
3. industrial sewing machine bottom line detecting and controlling system according to claim 1, it is characterized in that: described bobbin case (31) comprises a bobbin case body (313) in the form of annular discs and from the outward flange of bobbin case body (313) to the rib (314) of downward-extension, described fibre optical transmission entrance (311) is located on rib (314), form described breach (312) between the two ends of described rib (314), described fibre optical transmission entrance (311) and breach (312) symmetry are located at the both sides of bobbin case body (313).
4. industrial sewing machine bottom line detecting and controlling system according to claim 1, it is characterized in that: the outer peripheral face of described wrapping post (321) offers a circumferential slot (324) distributed along the circumference of wrapping post (321), this circumferential slot is wound with bottom line in (324).
5. industrial sewing machine bottom line detecting and controlling system according to claim 4, it is characterized in that: the outer peripheral face of described wrapping post (321) offers a groove (325), described reflective sheeting (323) is positioned at this groove (325) and pastes with wrapping post (321) and is connected.
6. industrial sewing machine bottom line detecting and controlling system according to claim 5, is characterized in that: the degree of depth of described groove (325) is greater than the degree of depth of circumferential slot (324).
7. the industrial sewing machine bottom line detection control method based on Fibre Optical Sensor, it is characterized in that: comprise the industrial sewing machine bottom line detecting and controlling system as described in any one of claim 1-6, described industrial sewing machine bottom line detection control method comprises the steps:
A, in signal condition control circuit (6), pre-set basic parameter, described basic parameter for Fibre Optical Sensor (5) receive the reflected light signal reflected from reflective sheeting (323) after the measurement parameter that obtains;
The light source of B, Fibre Optical Sensor (5) inside sends light, light is irradiated to fibre optical transmission entrance (311) place after the Optical Fiber Transmission in Fibre Optical Sensor (5), and Fibre Optical Sensor (5) receives the sensed light signal that fires back from fibre optical transmission entrance (311) place and exports a detected parameters;
Detected parameters is transferred to signal condition control circuit (6) by C, Fibre Optical Sensor (5), signal condition control circuit (6) exports a consequential signal after detected parameters and described basic parameter being compared, and whether electronic control module (1) reception result signal is also controlled motor (4) according to this consequential signal rotated by output circuit (7);
When detected parameters is zero, described consequential signal is " without peg or spindle ", then electronic control module (1) controls motor (4) by output circuit (7) and stops operating;
When detected parameters non-vanishing and different from basic parameter time, described consequential signal is " have peg or spindle and bottom line amount is enough ", then electronic control module (1) judges that bottom line is not finished and controls motor (4) by output circuit (7) and is rotated further;
When detected parameters non-vanishing and identical with basic parameter time, described consequential signal is " having peg or spindle and bottom line quantity not sufficient ", then electronic control module (1) judges that bottom line runs low and controls motor (4) by output circuit (7) and stops operating.
8. industrial sewing machine bottom line detection control method according to claim 7, it is characterized in that: described electronic control module (1) is also connected with a user interface (8) by described output circuit (7), this user interface (8) is a display screen; When consequential signal for " without peg or spindle " or " having peg or spindle and bottom line quantity not sufficient " time, the mode with Word message on described display screen shows error information.
9. industrial sewing machine bottom line detection control method according to claim 8, is characterized in that: on described display screen also in the mode of icon information to show error information.
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