CN211848422U - Sewing machine and broken thread detection device thereof - Google Patents
Sewing machine and broken thread detection device thereof Download PDFInfo
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- CN211848422U CN211848422U CN202020259426.XU CN202020259426U CN211848422U CN 211848422 U CN211848422 U CN 211848422U CN 202020259426 U CN202020259426 U CN 202020259426U CN 211848422 U CN211848422 U CN 211848422U
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Abstract
The utility model discloses a sewing machine and broken string detection device thereof, broken string detection device includes: the mounting plate is used for being mounted on a shell of the sewing machine; the detection assembly is arranged on the mounting plate and provided with a thread passing hole for a thread to pass through, and the detection assembly is also provided with a probe for emitting a light beam; the main control is connected with the probe, when the light beam is cut by the suture, the main control judges that the suture is not broken, and when the light beam is not cut by the suture, the main control judges that the suture is broken. The thread breakage detection device judges whether the suture is broken or not by detecting whether the suture moves or not, and the detection precision is high.
Description
Technical Field
The utility model relates to a sewing machine technical field, in particular to sewing machine and broken string detection device thereof.
Background
The existing sewing machine is usually stopped by the operation of an operator when sewing broken threads. When an operator recognizes the broken wire and controls the machine to stop, the machine runs a part of empty needles, and the quality problems of fabric damage and the like can be caused. Some mechanical devices are also available in the market, and the mechanical devices are contacted with the induction copper sheet through a take-up spring to detect wire breakage and then stop the machine. However, the sensor has the problems that the take-up spring is easy to break, the service life is short, and the detection precision is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a sewing machine and broken string detection device thereof judges whether the suture is broken string through detecting whether the suture moves to it is higher to detect the precision.
In order to achieve the above object, the utility model provides a pair of broken string detection device, include:
the mounting plate is used for being mounted on a shell of the sewing machine;
the detection assembly is arranged on the mounting plate and provided with a thread passing hole for a thread to pass through, and the detection assembly is also provided with a probe for emitting a light beam;
the main control is connected with the probe, when the light beam is cut by the suture, the main control judges that the suture is not broken, and when the light beam is not cut by the suture, the main control judges that the suture is broken.
Optionally, the plurality of thread passing holes are sequentially arranged in the vertical direction and used for the thread to sequentially penetrate through, and the number of the thread passing holes is greater than 1.
Optionally, the number of the wire through holes is two.
Optionally, the two probes are respectively disposed at the middle ends of the two wire passing holes, one of the probes is used for emitting a light beam, and the other probe is used for receiving the light beam.
Optionally, the probe includes a transmitting end and a receiving end, the transmitting end and the receiving end are respectively disposed at the middle ends of the two wire passing holes, the transmitting end is configured to emit a light beam, and the receiving end is configured to receive the light beam.
Optionally, a fastening portion is further included to provide both the detection assembly and the mounting plate to the housing.
Optionally, both the detection assembly and the mounting plate are removably mounted to the housing.
Optionally, the main control is further connected with a driving part of the sewing machine, and when the main control judges that the thread is broken, the driving part is controlled to stop running.
The utility model also provides a sewing machine, including above-mentioned arbitrary one broken string detection device.
Optionally, the yarn guide device further comprises a take-up lever and a yarn clamping assembly, the yarn breakage detection device is located below the take-up lever, and the yarn breakage detection device is located on one side, close to the needle, of the yarn clamping assembly.
Compared with the prior art, the utility model provides a broken string detection device, the detection subassembly sets firmly in the mounting panel, and the detection subassembly is equipped with the line passing hole that is used for the suture to wear to establish, and the detection subassembly is equipped with the probe, and the probe is used for launching the beam; when the sewing machine moves to drive the suture to move continuously, the light beam is cut when the suture moves, so that dynamic signal input is generated, the dynamic signal is converted into a voltage signal through the detection probe, the main control judges whether the suture is in a broken line state or not through identifying the voltage signal, when the suture is broken, the suture stops moving at the moment, the light beam is cut, and the main control does not identify the signal input, namely judges that the suture is in the broken line state; therefore, the suture motion detection is carried out through the light-sensitive probe, the detection precision is high, and the suture can be timely known to be in a broken state; meanwhile, the problem that the thread take-up spring is broken due to the fact that the thread take-up spring frequently contacts the induction copper sheet in the prior art can be solved by adopting the light-sensitive probe to detect the broken thread of the sewing thread.
The utility model provides a sewing machine with broken string detection device possesses above-mentioned beneficial effect, and this paper here will not be repeated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a structural view of a head part of a sewing machine provided with a thread breakage detecting device according to an embodiment of the present invention;
fig. 2 is a schematic view of a disconnection detecting device according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating the operation of a probe of the disconnection detecting device according to the embodiment of the present invention;
fig. 4 is a schematic view of the disconnection detecting device provided in the embodiment of the present invention when a wire is passed.
Wherein:
the device comprises a machine head 1, a take-up lever 2, a wire clamping assembly 3, a machine needle 4, a broken wire detection device 5, a mounting plate 10, a detection assembly 11, a fastening part 12, a wire passing hole 13, a probe 14, a suture 15 and a light beam 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
The embodiment of the utility model provides a broken string detection device 5, refer to specification attached drawing 1 to fig. 4, including mounting panel 10, determine module 11 and master control, mounting panel 10 can regard as broken string detection device 5's benchmark, installs in sewing machine's casing.
The mounting plate 10 may be embodied as a metal plate, the detecting member 11 is mounted on the mounting plate 10, and both the mounting plate 10 and the detecting member 11 may be detachably mounted to the housing using fastening portions 12 such as bolts in order to facilitate detachment of the thread breakage detecting device 5 from the housing of the sewing machine.
Of course, the mounting plate 10 and the detecting component 11 can also be fixed by welding or the like, so that the mounting plate 10 and the detecting component 11 are integrated and can be detachably mounted compared with the case.
The detection assembly 11 is provided with a thread passing hole 13, and the thread passing hole 13 is used for a thread 15 to pass through; with reference to the attached figure 4 of the specification, in the sewing process of the sewing machine, after a thread 15 passes through the thread clamping assembly 3, the thread passing through hole of the take-up lever 2 is penetrated, then the thread passing hole 13 of the detection assembly 11 is penetrated, and finally the thread passes into the machine needle 4. The number of the thread passing holes 13 is at least two, the at least two thread passing holes 13 are used for the thread 15 to pass through, and the specific arrangement mode of the two thread passing holes 13 will be given below.
The sensing assembly 11 is also provided with a probe 14, the probe 14 being arranged to emit a light beam 16. The probe 14 is connected to the master control which determines that the suture 15 is not broken when the beam 16 is cut by the suture 15 and that the suture 15 is broken when the beam 16 is not cut by the suture 15. The probe 14 may be embodied as an infrared probe or other photoelectric probe capable of emitting light.
When the sewing machine moves to drive the suture 15 to move continuously, the suture 15 can cut the light beam 16 when moving, so that dynamic signal input is generated, the dynamic signal is converted into a voltage signal through the detection probe 14, the main controller judges whether the suture 15 is in a broken line state or not through identifying the voltage signal, when the suture 15 is broken, the motion of the suture 15 is stopped, the light beam 16 is cut, and the main controller does not identify the signal input, namely, the suture is judged to be in the broken line state; therefore, the motion detection of the suture 15 is performed by the light-sensitive probe 14, the detection precision is high, and the state of the broken suture 15 can be known in time.
In order to ensure the trend of the suture 15 in the thread passing holes 13, the thread passing holes 13 can be sequentially arranged along the vertical direction, and the suture 15 can sequentially penetrate through the thread passing holes 13 from top to bottom, so that the trend of the suture 15 at the position of the thread passing holes 13 is ensured to be reliable, and the detection of the probe 14 is accurate.
Referring to the attached fig. 2 of the specification, the number of the wire through holes 13 is two, and the two wire through holes 13 are respectively disposed at the upper end and the lower end of the detection assembly 11. The detecting component 11 is substantially plate-shaped, and the upper and lower ends thereof are respectively provided with a support lug, and the support lug is provided with a wire passing hole 13.
The two probes 14 can be respectively disposed at the middle ends of the two wire through holes 13, as shown in fig. 2, the two probes 14 are respectively disposed at two sides of the connection line of the two wire through holes 13, one probe 14 is used for emitting a light beam 16, and the other probe 14 is used for receiving the light beam 16. With reference to fig. 3, the probe 14 on the left side emits a light beam 16, and the probe 14 on the right side receives the light beam, so that an optical axis is formed between the two probes 14; similarly, when the sewing machine moves to drive the sewing thread 15 to move continuously, the sewing thread 15 can cut the optical axis when moving, dynamic signal input is generated, the dynamic signal is converted into a voltage signal through the detection probe 14, the main control judges whether the sewing thread 15 is in a broken state or not through recognizing the voltage signal, when the sewing thread 15 is broken, the sewing thread 15 stops moving at the moment, the cutting of the optical axis is stopped, and the main control does not recognize the signal input, namely, the sewing thread is judged to be in the broken state.
In addition to the two probes 14, the probe 14 may include a transmitting end and a receiving end, both of which are respectively disposed at the middle ends of the two wire passing holes 13, and both of which are respectively located at both sides of the connection line of the two wire passing holes 13, and the specific positions of the transmitting end and the receiving end may refer to the positions of the two probes 14.
A transmitting end for transmitting a light beam 16, and a receiving end for receiving the light beam 16; i.e., with one probe 14. It will be appreciated that the operation of the probe 14, including the transmitting and receiving ends, is similar to the operation of the two probes 14 described above and will not be described in further detail herein.
The main control is also connected with a driving part of the sewing machine, and when the main control judges that the thread 15 is broken, the driving part is controlled to stop running. That is, when the movement of the sewing thread 15 is stopped, the sewing thread 15 stops cutting the optical axis, the main control does not recognize the signal input, and the main control judges that the sewing thread is in the thread breakage state, and then the main control controls the driving part to stop running and stops sewing, thereby avoiding the problem of missing needles.
The utility model provides a sewing machine with a broken thread detection device, which comprises the broken thread detection device described in the above embodiment; other parts of the sewing machine can be referred to the prior art and are not expanded herein.
Referring to the attached figure 1 of the specification, the sewing machine further comprises a take-up lever 2 and a thread clamping assembly 3, the take-up lever 2, the thread clamping assembly 3, a needle 4 and a thread breakage detection device 5 are all located at the machine head 1 of the sewing machine, the thread breakage detection device 5 is located below the take-up lever 2, and the thread breakage detection device 5 is located on one side, close to the needle 4, of the thread clamping assembly 3. The take-up lever 2, the thread clamping device assembly 3 and the thread breakage detection device 5 are all located above the needle 4, and the specific setting mode and the working process of the take-up lever 2 and the thread clamping device assembly 3 can refer to the prior art, and are not described in detail herein.
The sewing machine and the thread breakage detecting device thereof provided by the utility model are described in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. A disconnection detecting device, comprising:
the mounting plate (10), the said mounting plate (10) is used for mounting to the chassis of the Sewing machines;
the detection assembly (11) is mounted on the mounting plate (10), the detection assembly (11) is provided with a thread passing hole (13) for a thread (15) to penetrate through, the detection assembly (11) is further provided with a probe (14), and the probe (14) is used for emitting a light beam (16);
the main control is connected with the probe (14), judges that the suture (15) is not broken when the light beam (16) is cut by the suture (15), and judges that the suture (15) is broken when the light beam (16) is not cut by the suture (15).
2. The broken string detection device according to claim 1, wherein a plurality of the string through holes (13) are sequentially arranged along a vertical direction for the strings (15) to sequentially penetrate through, and the number of the plurality of the string through holes is greater than 1.
3. The disconnection detecting device according to claim 2, wherein the number of the wire through holes (13) is two.
4. A disconnection detecting device according to claim 2 or 3, wherein two of said probes (14) are respectively disposed at the middle ends of two of said wire through holes (13), one of said probes (14) is configured to emit a light beam (16), and the other of said probes (14) is configured to receive the light beam (16).
5. A disconnection detecting device according to claim 2 or 3, wherein the probe (14) comprises a transmitting end and a receiving end, the transmitting end and the receiving end are respectively arranged at the middle ends of the two wire through holes (13), the transmitting end is used for transmitting a light beam (16), and the receiving end is used for receiving the light beam (16).
6. A disconnection detecting device according to any of claims 1-3, further comprising a fastening portion (12) for providing both the detecting member (11) and the mounting plate (10) to the housing.
7. The disconnection detecting device according to claim 6, wherein both the detecting member (11) and the mounting plate (10) are detachably mounted to the housing.
8. The thread breakage detection device according to any one of claims 1 to 3, wherein the main control is further connected with a driving part of the sewing machine, and when the main control judges that the thread (15) is broken, the driving part is controlled to stop running.
9. A sewing machine comprising the thread breakage detection device according to any one of claims 1 to 8.
10. Sewing machine as in claim 9, characterized in that it also comprises a take-up lever (2) and a gripper assembly (3), said thread breakage detection device (5) being located below said take-up lever (2), said thread breakage detection device (5) being located on the side of said gripper assembly (3) close to the needle (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020259426.XU CN211848422U (en) | 2020-03-05 | 2020-03-05 | Sewing machine and broken thread detection device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020259426.XU CN211848422U (en) | 2020-03-05 | 2020-03-05 | Sewing machine and broken thread detection device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211848422U true CN211848422U (en) | 2020-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020259426.XU Active CN211848422U (en) | 2020-03-05 | 2020-03-05 | Sewing machine and broken thread detection device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211848422U (en) |
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2020
- 2020-03-05 CN CN202020259426.XU patent/CN211848422U/en active Active
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Address after: 318000 no.1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318000 no.1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee before: JACK SEWING MACHINE Co.,Ltd. |