CN113529297A - Air blowing type bird nest prevention device and using method - Google Patents
Air blowing type bird nest prevention device and using method Download PDFInfo
- Publication number
- CN113529297A CN113529297A CN202010305893.6A CN202010305893A CN113529297A CN 113529297 A CN113529297 A CN 113529297A CN 202010305893 A CN202010305893 A CN 202010305893A CN 113529297 A CN113529297 A CN 113529297A
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- driver
- air
- wire
- air duct
- thread
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
- D05B65/06—Devices for severing the needle or lower thread and for disposing of the severed thread end ; Catching or wiping devices for the severed thread
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/08—Fluid drives, e.g. pneumatic
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Massaging Devices (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention belongs to the technical field of sewing equipment, in particular to an air blowing type bird nest prevention device and a using method thereof; the first driver is connected with the wire hook to drive the wire hook to hook the wire and to clamp the wire by matching with the wire pressing sheet, the air blowing pipe is provided with a wire hooking hole, the first driver is connected with the second driver, the second driver can drive the first driver to move the clamped wire into the wire hooking hole, the air blowing pipe is provided with more than one air blowing source, the air blowing source blows air into the air blowing pipe, and a channel for blowing out the head of the wire is formed in the air blowing pipe; the invention adopts the blowing mode to blow the thread end away from the blowing pipe for cleaning, and is convenient to maintain at ordinary times.
Description
The technical field is as follows:
the invention belongs to the technical field of sewing equipment, and particularly relates to an air blowing type bird nest prevention device and a using method thereof.
Background art:
when a sewing machine sews cloth, a thread end with a certain length needs to be left at the needle eye of a needle when the sewing machine starts to sew, so that the thread end cannot be separated from the needle eye when the sewing is started, but the thread end can be piled up on the cloth to form a nest-shaped thread group.
In order to achieve the effect of preventing the bird nest, different bird nest preventing structures of the sewing machine appear in the market, the thread end generated by the bird nest preventing structure is mainly an air suction mode in the current cleaning mode, if the Chinese utility model patent with the authorization publication number of CN 209144401U discloses the bird nest preventing structure of the sewing machine, the thread end generated by the bird nest preventing structure is sucked away by the thread end remained on the thread through the air suction nozzle, and the clean working environment is ensured. The air suction structure comprises a pneumatic air suction structure and an electric air suction structure, the pneumatic air suction structure sucks the thread ends into the special collecting barrel through negative pressure generated by the air pump, but the structure needs to be provided with the air pump and the air valve, and the cost is high. The electric air suction structure adopts a high-rotating-speed motor to vacuumize to generate negative pressure and suck the thread end into a special collecting barrel, but the structure needs to be provided with the electric air suction barrel, so that the problems of high cost, high noise, high energy consumption, easy blockage, heating and the like exist.
The invention content is as follows:
the invention aims to provide an air blowing type bird nest prevention device which does not need to be provided with an air source and an electric air suction barrel and is low in cost and a using method.
The invention is realized by the following steps:
the invention provides an air blowing type bird nest prevention device which comprises a first driver, a second driver, wire hooks, a wire pressing piece and an air blowing pipe, wherein the first driver is connected with the wire hooks to drive the wire hooks to move to hook wires and cooperate with the wire pressing piece to clamp the wires, the air blowing pipe is provided with wire hooking holes, the first driver is connected with the second driver, the second driver can drive the first driver to move the clamped facial wires into the wire hooking holes, the air blowing pipe is provided with more than one air blowing source, the air blowing source blows air into the air blowing pipe, and a channel for blowing the heads of the facial wires out is formed in the air blowing pipe.
In foretell bird's nest device is prevented to air blowing formula, form first wind channel, wind channel pivot, second wind channel and the third wind channel that connects gradually in the gas blow pipe, the air blowing source is provided with two, is first air blowing source, second air blowing source respectively, and first air blowing source is connected with first wind channel, collude the line hole setting on the wind channel pivot, still be provided with the fourth wind channel on the wind channel pivot, this fourth wind channel and wind channel pivot inner chamber intercommunication, the second air blowing source is connected on the fourth wind channel.
In the above blowing type bird nest prevention device, the second air duct is a curved duct, and an outlet end of the fourth air duct is arranged downward.
In the above blowing type bird nest prevention device, an included angle between the axis of the fourth air duct and the direction of the air flow is an acute angle.
In the above blowing type bird nest prevention device, an included angle between the axis of the hook wire hole and the direction of the air flow is an acute angle.
In the above blowing type bird nest prevention device, the blowing source is a fan, a blower or an air pump.
In the above blowing type bird nest prevention device, the first driver includes a first driving shaft, the first driving shaft is connected with one end of a rotating arm, the other end of the rotating arm is hinged with one end of a first connecting rod, the first connecting rod is arranged on the first guide rail, and the other end of the first connecting rod is connected with the wire hook.
In foretell bird's nest device is prevented to formula of blowing, the second driver includes the second drive shaft, and the second drive shaft is connected with the one end of connecting rod two, and the second drive shaft drives connecting rod two and rotates, is provided with the bar hole at the other end of connecting rod two, is provided with connecting portion on the first driver, and connecting portion swing joint is downthehole at the bar, the first drive shaft of first driver passes the bar hole and is connected with the rotor arm, first driver setting is on the second guide rail.
In the blowing type bird's nest prevention device, the line pressing piece is located below the line hook, one end of the line pressing piece is fixedly arranged on the first guide rail, the other end of the line pressing piece is arranged in a hanging mode, and the line hook is in surface-to-surface contact with the line pressing piece when clamping lines.
The invention also aims to provide a using method of the air blowing type bird nest prevention device, which comprises the following steps:
(1) after finishing trimming the last sewing, the controller controls the first driver to act, a first driving shaft of the first driver drives the thread hook to extend outwards to the lower part of the needle, and the thread end of the upper thread below the needle eye of the needle is hooked;
(2) the controller controls the first driving shaft to rotate reversely, and drives the wire hook to reset until the wire hook is matched with the wire pressing piece to clamp the hooked wire end;
(3) the controller controls the machine to start, the needle starts to perform sewing work, when the thread end sewn on the sewing material touches the thread cutting knife on the presser foot, the thread end is cut off, and the thread end is left between the thread hook and the thread pressing plate;
(4) the controller controls a second driving shaft of the second driver to act, and the second driving shaft drives the first driver, the wire hook and the wire pressing piece to move along the second guide rail, so that the wire end is positioned in the wire hooking hole;
(5) the controller controls the first blowing source to blow air, and controls the first driving shaft (13) of the first driver to act to drive the wire hook to act, so that the wire end clamped between the wire hook and the wire pressing sheet is blown into the second air channel by the first blowing source;
(6) the controller timely controls the second air blowing source to blow air into the fourth air duct, and the thread ends are blown out from the second air duct and the third air duct and collected.
Compared with the prior art, the invention has the outstanding advantages that:
1. the invention adopts the blowing mode to blow the thread end away from the blowing pipe for cleaning, and the maintenance is convenient at ordinary times;
2. the invention avoids the dependence on an air source, and has the advantages of low cost, low noise, low energy consumption and the like compared with an electric air suction structure;
3. the thread hooking component can be integrally contracted, and can be retracted upwards when not used at ordinary times so as to increase the operation space.
Description of the drawings:
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a state diagram of the use of the present invention;
fig. 3 is a schematic view of the air duct hinge of the present invention connected with a second air duct and a fourth air duct.
In the figure: 1. a first driver; 2. a second driver; 3. a wire hook; 4. pressing line sheets; 5. a needle; 6. A wire hooking hole; 7. a first air duct; 8. an air duct hub; 9. a third air duct; 10. a first blowing source; 11. a second blowing source; 12. a fourth air duct; 13. a first drive shaft; 14. a rotating arm; 15. a first connecting rod; 16. a first guide rail; 17. a second drive shaft; 18. a second connecting rod; 19. a strip-shaped hole; 20. a second guide rail; 21. a housing; 22. and a second air duct.
The specific implementation mode is as follows:
the invention will now be further described by way of specific examples, with reference to figures 1 to 3:
the utility model provides a bird's nest device is prevented to air blowing formula, includes first driver 1, second driver 2, line colludes 3, line ball 4 and gas blow pipe, first driver 1 is connected with line colludes 3 and is driven the motion of line collude 3 and colludes the line and collude the line and realize pressing from both sides the line with line ball 4 cooperation, and the connection of first driver 1 here and line collude 3 is direct connection or indirect connection. The first driver 1 driving wire hook 3 moves towards the direction of the needle 5 to the lower part of the needle 5 to hook the upper wire, and the first driver 1 driving wire hook 3 moves away from the direction of the needle 5 to the position matched with the wire pressing sheet 4 to clamp the wire with the wire pressing sheet 4. The air blowing pipe is provided with a wire hooking hole 6, and the outer ends of the wire hook 3 and the wire pressing piece 4 can penetrate through the wire hooking hole 6. The first driver 1 is connected to the second driver 2, where the connection of the first driver 1 to the second driver 2 is a direct or indirect connection. The second driver 2 can drive the first driver 1, the wire hook 3 and the wire pressing piece 4 to move the clamped facial wires to the wire hooking hole 6, more than one air blowing source is connected to the air blowing pipe, the air blowing source blows air towards the air blowing pipe, and a channel for blowing out the head of the facial wires outwards is formed in the air blowing pipe. When the first driver 1 is directly connected with the wire hook 3, the first driver 1 can be an air cylinder or a linear motor, etc.
In order to avoid the dependence on the air source, the first driver 1 and the second driver 2 of the invention both adopt motors, preferably stepping motors.
Further, a first air duct 7, an air duct hinge 8, a second air duct 22 and a third air duct 9 are formed in the air blowing pipe, two air blowing sources are provided, namely a first air blowing source 10 and a second air blowing source 11, the first air blowing source 10 and the second air blowing source 11 can be fans or blowers or air pumps and other components capable of generating air pressure difference to form air flow, and the fans are preferred in the embodiment. The first air blowing source 10 is connected with the first air duct 7, the hook hole 6 is arranged on the air duct hinge 8, a fourth air duct 12 is further arranged on the air duct hinge 8, the inner cavity of the fourth air duct 12 is communicated with the inner cavity of the air duct hinge 8, and a second air blowing source 11 is arranged on the fourth air duct 12.
In this embodiment, the second air duct 22 is a curved duct, and the outlet end of the fourth air duct 9 is disposed downward, wherein the outlet end is disposed downward for collecting the thread ends.
In order to enable the wind blown by the second blowing source 11 to enter the second wind channel 22 and the third wind channel 9, an included angle between the axis of the fourth wind channel 12 and the airflow direction is an acute angle. In order to enable the thread end to be smoothly blown down in the blowing pipe, an included angle between the axis of the thread hooking hole 6 and the air flow direction is an acute angle. The direction indicated by the arrow in fig. 3 is the direction of the air flow.
The power of the second blowing source 11 is greater than the power of the first blowing source 10. The first blowing source 10 plays a role in blowing off the thread ends, the second blowing source 11 blows the accumulated thread ends in the blowing pipe outwards by means of high wind pressure, and the action of the second blowing source 11 is timely controlled by the controller.
As shown in fig. 1 and 2, the first driver 1 includes a first driving shaft 13, the first driving shaft 13 is connected to one end of a rotating arm 14, the other end of the rotating arm 14 is hinged to one end of a first connecting rod 15, the first connecting rod 15 is disposed on a first guide rail 16, and the other end of the first connecting rod 15 is connected to the hook 3. The wire hook 3 of the present embodiment is driven by the first driver 1 to reciprocate linearly. The wire hook 3 is of a strip-shaped sheet structure and comprises a body, an installation part positioned at one end of the body and a hook part positioned at the other end of the body. The mounting portion is used for connecting with the first connecting rod 15. The line pressing piece 4 is located below the line hook 3, one end of the line pressing piece 4 is fixedly arranged on the first guide rail 16, the other end of the line pressing piece 4 is arranged in a suspended mode, the line hook 3 and the line pressing piece 4 are in surface-to-surface contact when clamping lines, the lines are clamped firmly, and the reliability of line cutting of the presser foot blade can be guaranteed. The first driver 1 of the present invention can also be connected to the wire hook 3 in a rack and pinion manner.
The second driver 2 comprises a second driving shaft 17, the second driving shaft 17 is connected with one end of a second connecting rod 18, the second driving shaft 17 drives the second connecting rod 18 to rotate, a strip-shaped hole 19 is formed in the other end of the second connecting rod 18, a connecting part is arranged on the first driver 2 and movably connected in the strip-shaped hole 19, the connecting part comprises a convex column, a clamping block and the like, the first driving shaft 13 of the first driver 1 penetrates through the strip-shaped hole 19 to be connected with the rotating arm 14, and the first driver 1 is arranged on a second guide rail 20. The drive shaft 17 of second driver 2 rotates, drives two 18 rotations of connecting rod, and first driver 2 has converted the linear motion into with rotating under the effect of second guide rail 20 and bar hole 19, connecting portion, and then drives second driver 2 and leads 20 rail removal along the second. In order to make the structure compact, the first blowing source 10 and the second blowing source 11 of the present invention are fixedly arranged on the second guide rail 20. The second guide rail 20 is mounted on the rear side of the cabinet 21 by a mounting bracket. The second driver 2 can move upwards to expand the operation space when the hooking and clamping assembly (including the first driver 1, the wire hook 3, the wire pressing piece 4 and the first guide rail 16) is not used. The second drive 2 according to the invention can also be connected to the first drive 1 by means of a rack-and-pinion arrangement.
The using method of the invention comprises the following steps:
(1) after finishing trimming the last sewing, the controller controls the first driver 1 to act, and a first driving shaft 13 of the first driver 1 drives the thread hook 3 to extend outwards to the lower part of the needle 5 so as to hook the thread end of the upper thread below the needle eye of the needle 5;
(2) the controller controls the first driving shaft 13 to rotate reversely to drive the thread hook 3 to reset until the thread hook is matched with the thread pressing piece 4 to clamp the hooked upper thread;
(3) the controller controls the machine to start, the needle 5 starts to perform sewing work, when the thread head sewn on the sewing material touches the thread cutting knife on the presser foot, the thread head is cut off, and the thread head is left between the thread hook 3 and the thread pressing plate 4;
(4) the controller controls a second driving shaft 17 of the second driver 2 to act, and the second driving shaft 17 drives the first driver 1, the wire hook 3 and the wire pressing piece 4 to move along a second guide rail 20, so that the wire head is positioned in the wire hooking hole 6;
(5) the controller controls the first air blowing source 10 to blow air, and controls the first driving shaft 13 of the first driver 1 to act to drive the wire hook 4 to act, so that the wire end clamped between the wire hook 3 and the wire pressing sheet 4 is blown into the second air channel 22 by the first air blowing source 10;
(6) the controller timely controls the second air blowing source 11 to blow air into the fourth air duct 12, and the thread ends are blown out and collected from the second air duct 22 and the third air duct 9. The timely control may be setting a blowing time in the controller, blowing at a certain interval, or setting a sensor in the blowing pipe, and when the sensor senses that more thread ends are accumulated in the blowing pipe, the controller controls the second blowing source 11 to blow, or according to the experience of operation, pressing a blowing button on the controller to control the action of the second blowing source 11.
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 invention are covered by the protection scope of the invention.
Claims (10)
1. The utility model provides a bird's nest device is prevented to air blowing formula which characterized in that: including first driver (1), second driver (2), line collude (3), line ball piece (4) and gas blow pipe, first driver (1) colludes (3) with the line and is connected the drive line and collude (3) action and collude the line and carry out the double-layered line with line ball piece (4) cooperation, be provided with on the gas blow pipe and collude line hole (6), first driver (1) is connected with second driver (2), and second driver (2) can drive first driver (1) and remove the facial line that will clip and move to colluding in line hole (6), be provided with the more than one on the gas blow pipe and blow the air supply, blow in the gas blow source towards the gas blow pipe, form the passageway that the line head outwards blew out in the gas blow pipe.
2. The blowing type bird nest prevention device according to claim 1, characterized in that: the air blowing pipe is internally provided with a first air duct (7), an air duct pivot (8), a second air duct (22) and a third air duct (9) which are sequentially connected, the number of the air blowing sources is two, the first air blowing source (10) and the second air blowing source (11) are respectively arranged, the first air blowing source (10) is connected with the first air duct (7), the hook hole (6) is formed in the air duct pivot (8), the air duct pivot (8) is further provided with a fourth air duct (12), the fourth air duct (12) is communicated with an inner cavity of the air duct pivot (8), and the second air blowing source (11) is connected to the fourth air duct (12).
3. The blowing type bird nest prevention device according to claim 2, wherein: the second air duct (22) is a bent duct, and the outlet end of the fourth air duct (12) is arranged downwards.
4. The blowing type bird nest prevention device according to claim 2 or 3, wherein: and an included angle between the axis of the fourth air duct (12) and the airflow direction is an acute angle.
5. An air blowing type bird nest preventing device according to claim 1, 2 or 3, wherein: the included angle between the axis of the line hooking hole (6) and the airflow direction is an acute angle.
6. An air blowing type bird nest preventing device according to claim 1, 2 or 3, wherein: the blowing source is a fan or a blower or an air pump.
7. The blowing type bird nest prevention device according to claim 1, characterized in that: the first driver (1) comprises a first driving shaft (13), the first driving shaft (13) is connected with one end of a rotating arm (14), the other end of the rotating arm (14) is hinged to one end of a first connecting rod (15), the first connecting rod (15) is arranged on a first guide rail (16), and the other end of the first connecting rod (15) is connected with the wire hook (3).
8. The blowing type bird nest prevention device according to claim 7, wherein: second driver (2) include second drive shaft (17), and second drive shaft (17) are connected with the one end of connecting rod two (18), and second drive shaft (17) drive connecting rod two (18) and rotate, are provided with bar hole (19) at the other end of connecting rod two (18), are provided with connecting portion on first driver (1), and connecting portion swing joint is in bar hole (19), first drive shaft (13) of first driver (1) pass bar hole (19) and are connected with rotor arm (14), first driver (1) sets up on second guide rail (20).
9. The blowing type bird nest prevention device according to claim 7, wherein: the wire pressing piece (4) is located below the wire hook (3), one end of the wire pressing piece (4) is fixedly arranged on the first guide rail (16), the other end of the wire pressing piece is arranged in a suspended mode, and the wire hook (3) is in surface-to-surface contact with the wire pressing piece (4) during wire clamping.
10. A use method of an air blowing type bird nest prevention device is characterized in that: the method comprises the following steps:
(1) after finishing trimming after the last sewing, the controller controls the first driver (1) to act, a first driving shaft (13) of the first driver (1) drives the thread hook (3) to extend outwards to the lower part of the needle (5), and the thread end of the upper thread below the needle eye of the needle (5) is hooked;
(2) the controller controls the first driving shaft (13) to rotate reversely to drive the thread hook (3) to reset until the thread hook is matched with the thread pressing piece (4) to clamp the hooked upper thread;
(3) the controller controls the machine to start, the needle (5) starts to perform sewing work, when the thread end sewn on the sewing material touches the thread cutting knife on the presser foot, the upper thread is cut off, and the thread end is left between the thread hook (3) and the thread pressing plate (4);
(4) the controller controls a second driving shaft (17) of the second driver (2) to act, and the second driving shaft (17) drives the first driver (1), the wire hook (3) and the wire pressing piece (4) to move along a second guide rail (20) so that a wire head is positioned in the wire hooking hole (6);
(5) the controller controls the first air blowing source (10) to blow air, and controls the first driving shaft (13) of the first driver (1) to act to drive the wire hook (4) to act, so that a wire end clamped between the wire hook (3) and the wire pressing sheet (4) is blown into the second air channel (22) by the first air blowing source (10);
(6) the controller timely controls the second air blowing source (11) to blow air into the fourth air duct (12), and the thread ends are blown out from the second air duct (22) and the third air duct (9) and collected.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010305893.6A CN113529297A (en) | 2020-04-17 | 2020-04-17 | Air blowing type bird nest prevention device and using method |
| PCT/CN2020/111356 WO2021208319A1 (en) | 2020-04-17 | 2020-08-26 | Air-blowing bird's nest prevention device and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010305893.6A CN113529297A (en) | 2020-04-17 | 2020-04-17 | Air blowing type bird nest prevention device and using method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113529297A true CN113529297A (en) | 2021-10-22 |
Family
ID=78083596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010305893.6A Pending CN113529297A (en) | 2020-04-17 | 2020-04-17 | Air blowing type bird nest prevention device and using method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113529297A (en) |
| WO (1) | WO2021208319A1 (en) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2539676B2 (en) * | 1988-12-05 | 1996-10-02 | シンガー日鋼株式会社 | Needle threading device for sewing machine |
| JP3876016B2 (en) * | 1996-05-14 | 2007-01-31 | Ｊｕｋｉ株式会社 | Thread trimming method and apparatus for sewing machine |
| CN201981362U (en) * | 2011-02-23 | 2011-09-21 | 大和缝纫机(宁波)有限公司 | Air blowing type turned edge-resistant machine |
| CN204780202U (en) * | 2015-07-08 | 2015-11-18 | 杭州天策服装设备成套有限公司 | Computer flush joint machine is automatic to be cutd off end of a thread and prevents bird's nest device |
| CN207313882U (en) * | 2017-09-21 | 2018-05-04 | 强信机械科技(莱州)有限公司 | One kind inhales the anti-Bird's Nest device of wire type |
| WO2019101033A1 (en) * | 2017-11-27 | 2019-05-31 | 强信机械科技(莱州)有限公司 | Sewing machine and bird's nest prevention device thereof, and sewing machine presser foot |
| CN207512388U (en) * | 2017-11-27 | 2018-06-19 | 强信机械科技(莱州)有限公司 | Sewing machine and its anti-Bird's Nest device |
| CN207828537U (en) * | 2018-01-18 | 2018-09-07 | 强信机械科技(莱州)有限公司 | A kind of sewing machine with anti-Bird's Nest device |
| CN208201321U (en) * | 2018-04-02 | 2018-12-07 | 强信机械科技(莱州)有限公司 | A kind of anti-Bird's Nest device of use in sewing machine |
| CN108251987A (en) * | 2018-04-23 | 2018-07-06 | 浙江美机缝纫机有限公司 | Sewing machine removes Bird's Nest device |
| CN209508601U (en) * | 2018-11-05 | 2019-10-18 | 杰克缝纫机股份有限公司 | A kind of sewing machine |
| CN109778446B (en) * | 2019-02-22 | 2021-04-13 | 杰克缝纫机股份有限公司 | Bird nest preventing device of sewing machine |
| CN212103242U (en) * | 2020-04-17 | 2020-12-08 | 浙江沪龙科技股份有限公司 | Air blowing type bird nest prevention device |
-
2020
- 2020-04-17 CN CN202010305893.6A patent/CN113529297A/en active Pending
- 2020-08-26 WO PCT/CN2020/111356 patent/WO2021208319A1/en active Application Filing
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| WO2021208319A1 (en) | 2021-10-21 |
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