CN209798269U - Bottom thread allowance detection device and sewing machine - Google Patents
Bottom thread allowance detection device and sewing machine Download PDFInfo
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- CN209798269U CN209798269U CN201920517446.XU CN201920517446U CN209798269U CN 209798269 U CN209798269 U CN 209798269U CN 201920517446 U CN201920517446 U CN 201920517446U CN 209798269 U CN209798269 U CN 209798269U
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Abstract
The utility model belongs to the technical field of sewing equipment, in particular to a bottom thread allowance detection device and a sewing machine; the bobbin thread allowance detection device comprises a bottom plate, a rotating shuttle assembly and a rotating shuttle shaft, wherein a shuttle peg is arranged in the rotating shuttle assembly, a detection hole penetrating through the side wall of the rotating shuttle assembly is formed in the side wall, opposite to a bobbin body of the shuttle peg, of the rotating shuttle assembly, a bobbin thread allowance detector is arranged on the bottom plate on one side of the rotating shuttle assembly, and the bobbin thread allowance detector is arranged right opposite to the detection hole; the utility model discloses an emission beam just jets into to the inspection hole, and it is high to detect the precision.
Description
The technical field is as follows:
the utility model belongs to the technical field of make up equipment, refer in particular to a bottom line surplus detection device and sewing machine.
Background art:
A sewing machine is a machine that interweaves or stitches one or more layers of material by applying a seam to form one or more stitches in the material. The bobbin thread is required to be used in the sewing process of the sewing machine, and is wound on the bobbin, and the bobbin is arranged in the rotating shuttle assembly. During sewing, the rotating shuttle component and the machine needle are mutually matched, and the sewing thread and the bottom thread are interwoven and linked to be sewn on the sewing material to form a stitch. Since the length of the bobbin thread wound around the bobbin is constant, typically 20m to 50m, while the thread is typically longer, typically 3000m to 4000 m. The bobbin thread allowance on the bobbin cannot be detected in real time in the sewing process, the sewing machine still continues to work after the thread on the bobbin is used up, so that the stitch cannot be formed, a needle hole can be left on the sewing material, the labor intensity of workers in reworking is increased, and particularly, the sewing material can be scrapped after the needle hole is left on some precious sewing materials, so that the waste of the sewing material is caused.
In order to improve the above phenomenon, chinese patent (publication No. CN 107653582a, published 2018-02-02) discloses a detection structure for bobbin upper bobbin thread of a sewing machine, the bobbin comprises a cylinder with a through hole, the through hole is arranged along the axis of the cylinder, two ends of the cylinder are respectively provided with a baffle extending outwards along the radial direction of the cylinder, a winding slot is formed between the two baffles, and the detection structure comprises an electric control module and a photoelectric sensor connected with the electric control module; the bottom in wire winding groove is equipped with reflector layer one, and the side that two baffles are relative of definition is the medial surface, and another side is the lateral surface, has reflector layer two in two baffles on the lateral surface of at least one baffle, and it has at least one light trap to open on the baffle of reflector layer two to have, photoelectric sensor can launch the beam respectively to foretell reflector layer two and reflector layer one, reflector layer two and reflector layer one can return foretell transmission beam reflection to photoelectric sensor respectively.
The photoelectric sensor is arranged on the front side of the shuttle peg, further optimization design of the sewing machine is influenced, if a rotating shuttle device is automatically changed, in addition, the direction of emitting light beams emitted by the photoelectric sensor is obliquely upward, so that the detection error is large, and the monitoring is not accurate enough.
the invention content is as follows:
The utility model aims at providing a detect the precision height, be difficult for influencing sewing machine's further optimal design's bottom line surplus detection device and sewing machine.
The utility model discloses a realize like this:
one of the purposes of the utility model is to provide a bottom line surplus detection device, including bottom plate, rotating shuttle subassembly, rotating shuttle axle, be provided with the cop latch in the rotating shuttle subassembly, be provided with the inspection hole that runs through rotating shuttle subassembly lateral wall on the rotating shuttle subassembly on the lateral wall relative with the bobbin of cop latch, be provided with bottom line surplus detector on the bottom plate of rotating shuttle subassembly one side, bottom line surplus detector is just setting up to the inspection hole.
In the above-mentioned bobbin thread residue amount detection device, the bobbin thread residue amount detector is a photoelectric sensor, the photoelectric sensor can emit a light beam to pass through the detection hole to the bobbin, and the bobbin can reflect the emitted light beam back to the photoelectric sensor.
In the above bobbin thread residue detection device, the photoelectric sensor is fixedly arranged on the bottom plate through the mounting seat.
in foretell bottom line surplus detection device, the mount pad includes side connecting plate and sensor side-mounting board, and side connecting plate, sensor side-mounting board all are L shape, and the curb plate of side connecting plate sets firmly on the leading flank of bottom plate, and the curb plate of side connecting plate is two and the curb plate of sensor side-mounting board is three to be connected, and photoelectric sensor sets up on the curb plate of sensor side-mounting board is four.
In the above-mentioned bobbin thread residue detection device, be provided with the mounting hole on photoelectric sensor's the diagonal, be provided with two bar holes in the corresponding position on curb plate four, two screws pass corresponding mounting hole, bar hole spiro union respectively and fix photoelectric sensor on sensor side-mounting board on the back connecting plate.
In the above device for detecting the remaining amount of the bottom line, the bottom plate is provided with the air blowing pipe, the air outlet end of the air blowing pipe faces the transmitting end and the receiving end of the photoelectric sensor, and the air inlet end of the air blowing pipe is connected with the air source through the control valve.
In the above bobbin thread residue detector, the bobbin thread residue detector is a detecting rod, and a detecting head of the detecting rod is aligned with the detecting hole.
In the above bobbin thread residue amount detection device, the rotating shuttle assembly includes a bobbin case, a rotating shuttle main body and a bobbin bladder, and a through hole is formed at a notch of the bobbin case and a corresponding window of the bobbin bladder to form a detection hole.
another object of the present invention is to provide a sewing machine, which includes the above-mentioned bobbin thread residue detecting device.
Compared with the prior art, the utility model outstanding advantage is:
1. the utility model discloses bottom line surplus detector is located the bottom plate of lateral wall one side of rotating shuttle subassembly, reduces the restriction to the further optimal design of sewing machine, if does not have the influence to the installation of automatic rotating shuttle device etc..
2. the utility model discloses an emission beam just jets into to the inspection hole, and it is high to detect the precision.
Description of the drawings:
Fig. 1 is a schematic view of the present invention;
FIG. 2 is one of the schematic diagrams of the bottom plate of the present invention after being disassembled;
Fig. 3 is a second schematic view of the bottom plate of the present invention after being disassembled;
Fig. 4 is a schematic view of the rotating shuttle main body of the present invention;
FIG. 5 is a schematic view of the shuttle bladder of the present invention;
Fig. 6 is a schematic view of the bobbin case of the present invention;
Fig. 7 is a schematic view of the inventive bobbin;
Fig. 8 is a schematic view of a side mounting plate of the present invention;
Fig. 9 is a schematic view of the sensor-side mounting plate of the present invention.
in the figure: 1. a base plate; 2. a rotating shuttle assembly; 3. a rotating shuttle shaft; 4. a bobbin; 5. a rotating shuttle main body; 6. a shuttle bladder; 7. a bobbin case; 8. a winding cylinder; 9. an upper baffle plate; 10. a lower baffle plate; 11. a detection hole; 12. a photosensor; 13. emitting a light beam; 14. a side connection plate; 15. a sensor-side mounting plate; 16. a first side plate; 17. a second side plate; 18. a side plate III; 19. a side plate IV; 20. a notch; 21. a window; 22. a through hole; 23. a first strip-shaped hole; 24. a strip-shaped hole II; 25. a strip-shaped hole III; 26. and a rear connecting plate.
The specific implementation mode is as follows:
The invention will now be further described with reference to specific embodiments, with reference to figures 1 to 9:
The utility model provides a bottom line surplus detection device, comprising a base plate 1, rotating shuttle subassembly 2, rotating shuttle axle 3, be provided with cop latch 4 in rotating shuttle subassembly 2, rotating shuttle subassembly 2 includes rotating shuttle main part 5, shuttle courage 6 and bobbin case 7, cop latch 4 includes winding barrel 8 and is located winding barrel 8 both ends and radially outwards extends last baffle 9 and lower baffle 10 that forms along winding barrel 8, be provided with the inspection hole 11 that runs through rotating shuttle subassembly 2 lateral wall on rotating shuttle subassembly 2 on the lateral wall relative with bobbin 8 of cop latch 4, be provided with bottom line surplus detector on bottom plate 1 of rotating shuttle subassembly 2 one side, bottom line surplus detector just sets up to inspection hole 11, bottom line surplus detector is connected with sewing machine's control.
the utility model discloses bottom line surplus detector is located bottom plate 1 of lateral wall one side of rotating shuttle subassembly 2, has avoided the influence to the further optimal design of sewing machine, if: and the automatic rotating shuttle changing device is arranged at the front side of the rotating shuttle component 2. In addition, the bottom line allowance detector is arranged right opposite to the detection hole 11, so that the detection precision is improved.
Furthermore, the detection hole 11 of the present invention is formed by disposing a through hole 22 on the bobbin case 7 corresponding to the notch 20 of the rotating shuttle main body 5 and the window 21 on the bobbin container 6. Wherein the notch 20 of the rotating shuttle main body 5 and the corresponding window 21 on the shuttle bladder 6 are present per se. Only one through hole 22 needs to be processed on the shuttle shell 7, the improvement on the rotating shuttle component 2 is small, and the structural modification cost is reduced. The size of the detection hole 11 is such that the bottom line allowance detector can normally detect the bottom line allowance. The through hole 22 is a waist-shaped hole, and may be a hole with other shapes, such as a circular hole, a polygonal hole, etc. The slotted holes are preferred in this embodiment. The long axis of the waist-shaped hole is arranged along the circumferential direction of the side wall of the bobbin case 7.
Further, as one embodiment of the bobbin residual quantity detector, the bobbin residual quantity detector is a photoelectric sensor 12, the photoelectric sensor 12 can emit a light beam 13 to the bobbin body 8 through the detection hole 11, and the bobbin body 8 can reflect the emitted light beam 13 back to the photoelectric sensor 12. At this time, the detection hole 11 is required to satisfy emission and reflection of the emission beam 13 of the photosensor 12.
since the bobbin 4 itself is made of a material (stainless steel) having a reflecting effect, when the bobbin 4 has an insufficient amount of the bobbin thread, the emitted light beam 13 of the photosensor 12 can be reflected by the bobbin 8. Of course, when the bobbin 4 is made of plastic or other material having no transmitting function, a reflective layer is applied to the bobbin body 8.
Further, the photoelectric sensor 12 is fixed on the bottom plate 1 through a mounting seat. The concrete structure is as follows: the mounting seat comprises a side connecting plate 14 and a sensor side mounting plate 15, the side connecting plate 14 and the sensor side mounting plate 15 are both L-shaped, a first side plate 16 of the side connecting plate 14 is fixedly arranged on the front side face of the bottom plate 1, a second side plate 17 of the side connecting plate 14 is connected with a third side plate 18 of the sensor side mounting plate 15, and the photoelectric sensor 12 is arranged on a fourth side plate 19 of the sensor side mounting plate 15.
In order to adjust photoelectric sensor 12's position, make it just to inspection hole 11 setting, the utility model discloses be provided with on curb plate 16 along controlling two bar holes 23 that the direction set up, adjust photoelectric sensor 12's position about through bar hole 23, be provided with two bar holes two 24 along the fore-and-aft direction on curb plate three 18, adjust photoelectric sensor 12's fore-and-aft direction through two bar holes two 24.
Further, the diagonal line of the photoelectric sensor 12 is provided with a mounting hole, two strip-shaped holes are arranged at corresponding positions on the side plate four 19, for convenience of distinguishing, the two strip-shaped holes are called as a strip-shaped hole three 25, and two screws respectively penetrate through the corresponding mounting hole and the strip-shaped hole three 25 to be screwed on the rear connecting plate 26 to fix the photoelectric sensor 12 on the sensor side mounting plate 15. The angle of the receiving end and the emitting end of the photoelectric sensor 12 opposite to the detection hole 11 can be adjusted through the two strip-shaped holes 25.
the operation principle of the bottom line margin detection by the photoelectric sensor 12 is as follows: the photoelectric sensor 12 is connected with a controller of the sewing machine, when the margin of the bobbin thread on the bobbin 4 is large, the emission beam 13 emitted by the photoelectric sensor 12 irradiates on the bobbin thread and can not be reflected, namely the photoelectric sensor 12 can not receive the reflection signal, and at the moment, the sewing machine continuously works. When the bottom thread allowance on the bobbin 4 can be exposed out of the bobbin body 8, at the moment, the emission light beam 13 emitted by the photoelectric sensor 12 is reflected back to the photoelectric sensor 12 after irradiating on the bobbin body 8, the photoelectric sensor 12 receives a signal and sends the signal to the controller, and the controller recognizes that the bottom thread allowance of the bobbin 4 is insufficient and controls the sewing machine to stop.
Since the sewing machine generates a large amount of thread and dust during sewing, the thread and dust are accumulated on the receiving end and the emitting end of the photoelectric sensor 12, which seriously affects the detection accuracy of the photoelectric sensor 12. In order to clean photoelectric sensor 12's receiving terminal and transmitting terminal in time, the utility model discloses be provided with the gas blow pipe on the bottom plate 1, the end of giving vent to anger of gas blow pipe is connected with the air supply through control valve towards photoelectric sensor's transmission and receiving terminal, the inlet end of gas blow pipe.
When cleaning is needed, the controller controls the control valve to be opened, at the moment, compressed gas in the gas source blows towards the photoelectric sensor through the control valve and the blowing pipe, and dust, thread hair and the like accumulated on the receiving end and the transmitting end of the photoelectric sensor 12 are blown off. After cleaning is finished, the controller controls the control valve to close and disconnect the air blowing pipe and the air source.
The gas blowing pipe is generally set as a metal pipe or a plastic pipe, and the metal pipe and the plastic pipe are not easy to deform under the action of compressed gas, so that the gas outlet end of the gas blowing pipe is ensured to be blown against the transmitting end and the receiving end of the photoelectric sensor 12 all the time.
The utility model discloses an air blow pipe simple structure, clean effectual to can blow automatically and clean, effectively improve the control precision of clean efficiency and bottom line surplus.
Further, as another embodiment of the bobbin thread residue detector, the bobbin thread residue detector is a probe rod, and a probe head of the probe rod is aligned with the detection hole 11. The detection rod is connected with the controller, and when the detection rod detects that the allowance of the bottom thread is insufficient, the controller controls the sewing machine to stop.
Another object of the present invention is to provide a sewing machine, which includes the above-mentioned bobbin thread residue detecting device.
the above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.
Claims (9)
1. The utility model provides a bottom line surplus detection device, includes bottom plate (1), rotating shuttle subassembly (2), rotating shuttle axle (3), is provided with shuttle peg (4), its characterized in that in rotating shuttle subassembly (2): a detection hole (11) penetrating through the side wall of the rotating shuttle component (2) is formed in the side wall, opposite to the winding barrel (8) of the shuttle peg (4), of the rotating shuttle component (2), a bottom line allowance detector is arranged on the bottom plate (1) on one side of the rotating shuttle component (2), and the bottom line allowance detector is arranged right opposite to the detection hole (11).
2. the bottom line margin detecting device according to claim 1, wherein: the bobbin thread allowance detector is a photoelectric sensor (12), the photoelectric sensor (12) can emit a light beam (13) to penetrate through a detection hole (11) to the winding barrel body (8), and the winding barrel body (8) can reflect the emitted light beam (13) to return to the photoelectric sensor (12).
3. the bottom line margin detecting device according to claim 2, wherein: the photoelectric sensor (12) is fixedly arranged on the bottom plate (1) through a mounting seat.
4. the bottom line margin detecting device according to claim 3, wherein: the mounting base comprises a side connecting plate (14) and a sensor side mounting plate (15), the side connecting plate (14) and the sensor side mounting plate (15) are L-shaped, a first side plate (16) of the side connecting plate (14) is fixedly arranged on the front side face of the base plate (1), a second side plate (17) of the side connecting plate (14) is connected with a third side plate (18) of the sensor side mounting plate (15), and the photoelectric sensor (12) is arranged on a fourth side plate (19) of the sensor side mounting plate (15).
5. the bottom line margin detecting device according to claim 4, wherein: and mounting holes are formed in diagonal lines of the photoelectric sensor (12), two strip-shaped holes are formed in corresponding positions on the four side plates (19), and two screws respectively penetrate through the corresponding mounting holes and the corresponding strip-shaped holes to be screwed on the rear connecting plate (26) to fix the photoelectric sensor (12) on the sensor side mounting plate (15).
6. The bottom line margin detecting device according to claim 1, wherein: the photoelectric sensor is characterized in that the bottom plate (1) is provided with an air blowing pipe, the air outlet end of the air blowing pipe faces the transmitting end and the receiving end of the photoelectric sensor (12), and the air inlet end of the air blowing pipe is connected with an air source through a control valve.
7. The bottom line margin detecting device according to claim 1, wherein: the bottom line allowance detector is a detection rod, and a detection head of the detection rod is aligned to the detection hole (11).
8. The bottom line margin detecting device according to claim 1, wherein: the rotating shuttle component (2) comprises a shuttle shell (7), a rotating shuttle main body (5) and a shuttle bladder (6), wherein a through hole (22) is formed in the position, corresponding to a notch (20) of the rotating shuttle main body (5) and a window (21) on the shuttle bladder (6), of the shuttle shell (7) to form a detection hole (11).
9. A sewing machine characterized by: comprising the bobbin thread residue detecting device according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920517446.XU CN209798269U (en) | 2019-04-16 | 2019-04-16 | Bottom thread allowance detection device and sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920517446.XU CN209798269U (en) | 2019-04-16 | 2019-04-16 | Bottom thread allowance detection device and sewing machine |
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| Publication Number | Publication Date |
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| CN209798269U true CN209798269U (en) | 2019-12-17 |
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| CN201920517446.XU Active CN209798269U (en) | 2019-04-16 | 2019-04-16 | Bottom thread allowance detection device and sewing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114717759A (en) * | 2021-01-05 | 2022-07-08 | 杰克科技股份有限公司 | Bottom thread detection structure of sewing machine |
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2019
- 2019-04-16 CN CN201920517446.XU patent/CN209798269U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114717759A (en) * | 2021-01-05 | 2022-07-08 | 杰克科技股份有限公司 | Bottom thread detection structure of sewing machine |
| CN114717759B (en) * | 2021-01-05 | 2023-10-24 | 杰克科技股份有限公司 | Bottom line detection structure of sewing machine |
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