CN112030388A - Automatic shuttle changing mechanism of sewing machine - Google Patents
Automatic shuttle changing mechanism of sewing machine Download PDFInfo
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- CN112030388A CN112030388A CN202010980594.2A CN202010980594A CN112030388A CN 112030388 A CN112030388 A CN 112030388A CN 202010980594 A CN202010980594 A CN 202010980594A CN 112030388 A CN112030388 A CN 112030388A
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- sewing machine
- telescopic
- cylinder
- rod
- disc
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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
- D05B59/04—Devices for changing the bobbin
-
- 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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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The automatic shuttle changing mechanism of the sewing machine comprises a mounting plate (2) connected with the lower portion of the sewing machine (1), and is characterized in that a grooved pulley rotary table (3), a clamping jaw (4) and a bottom line detection device (5) are mounted on the mounting plate (2), a replaceable and synchronously rotating shuttle shell mounting disc (6) is mounted on the grooved pulley rotary table (3), a circle of shuttle shell seat (7) is mounted on the shuttle shell mounting disc (6), arc-shaped groove teeth of the grooved pulley rotary table (3) are meshed with half-moon-shaped positioning teeth (9) at the center of a driving disc (8) to realize positioning, a driving shaft (10) is mounted on the driving disc (8), the driving shaft rotates a circle along with the driving disc to drive the mounting disc (6) to rotate a station, and the driving disc (8) is driven by a rotary table motor (11) mounted on the mounting plate (2. The invention has simple structure, small volume and large capacity, and can install 9 bobbin cases at one time. Greatly prolongs the bobbin case replacement time.
Description
Technical Field
The invention relates to clothing machinery, in particular to a sewing machine technology, and specifically relates to an automatic shuttle changing mechanism of a sewing machine.
Background
At present, industrial sewing machines are widely applied to garment manufacturing, preparation of end sockets of various connecting belts (such as safety belts) and the like. Generally speaking, a sewing machine for sewing a flat seam has an upper shuttle and a lower shuttle, the upper shuttle has a large capacity and a long replacement period, the lower shuttle is influenced by the size of a shuttle peg and needs to be replaced frequently, and the traditional manual replacement widely cannot meet the requirement of mass production. There is a need for improvement.
Disclosure of Invention
The invention aims to design an automatic shuttle changing mechanism of a sewing machine aiming at the problems of complex structure and small capacity of the existing shuttle changing mechanism.
The technical scheme of the invention is as follows:
an automatic shuttle changing mechanism of a sewing machine comprises a mounting plate 2 connected with the lower part of a sewing machine 1, and is characterized in that a sheave turntable 3, a clamping jaw 4 and a bottom line detection device 5 are mounted on the mounting plate 2, a replaceable and synchronously rotating bobbin case mounting plate 6 is mounted on the sheave turntable 3, a circle of bobbin case seat 7 is mounted on the mounting plate 6, arc-shaped groove teeth of the sheave turntable 3 are meshed with half-moon-shaped positioning teeth 9 at the center of a driving plate 8 to realize positioning, a driving shaft 10 is mounted on the driving plate 8, the driving shaft drives the mounting plate 6 to rotate a station along with one circle of rotation of the driving plate, and the driving plate 8 is driven by a turntable motor 11 mounted on the mounting plate 2; the clamping jaw 4 comprises a poking pendulum 25, the poking pendulum 25 is arranged on an output shaft 13 of a clamping jaw motor 12, the clamping jaw motor 12 is arranged on a clamping jaw seat 14, and a box sleeve 16 for clamping the shuttle shell 15 is arranged on the clamping jaw seat 14; the clamping jaw seat 14 is connected with a connecting plate 17, the connecting plate 17 is fixedly connected with an expansion link 18, the expansion link 18 penetrates through a rotary table 19 to be connected with an expansion propulsion cylinder 20 arranged on the back surface of the mounting plate 2, the rotary table 19 is rotatably arranged on a rotary table seat 21, a connecting rod is fixed on the rotary table 19, and one end of the connecting rod is connected with a bearing 24 at one end of a station switching cylinder 23; the bottom line detection device 5 is composed of a detection cylinder 26 and a detection head 27, the detection cylinder 27 is installed on the installation plate 2, and the detection head 27 is installed on a cylinder rod of the detection cylinder 27.
The number of the bobbin case seats 7 is 10, the center of each bobbin case seat 7 is provided with a positioning rod 701, and the periphery of each bobbin case seat 7 is provided with three positioning claws 702
The cartridge case 16 consists of three cartridge claws.
The jaw receptacle 14 is also fitted with a proximity switch 401.
The number of the telescopic rods 18 is at least 2, preferably four.
The rotary disc 19 is fixedly connected with the station switching disc 22 through a transition disc 30 and synchronously rotates, the transition disc 30 is rotatably arranged on the mounting seat 21, the station switching disc 22 is fixedly provided with a connecting rod, and one end of the connecting rod is connected with a bearing 24 at one end of the station switching air cylinder 23.
One end of the telescopic rod 18 penetrates through the turntable 19 to be connected with a telescopic driving disc 28, the telescopic driving disc 28 is connected with a cylinder rod of the telescopic propelling cylinder 20 through a polished rod bolt 29, the diameter of the cylinder rod is larger than that of the polished rod bolt 29 so as to push the telescopic driving disc 28 to move forwards and further push the telescopic rod 18 to extend outwards, and a bolt head of the polished rod bolt 29 drives the telescopic driving disc 28 to retract so as to drive the telescopic rod 18 to retract.
The bobbin case mounting plate 6 is locked on the sheave turntable 3 through the locking spiral plate 31, and the bobbin case mounting plate 6 can be taken down from the sheave turntable 3 by loosening the locking spiral plate 31 so as to replace the bobbin case 15.
The invention has the beneficial effects that:
the invention has simple structure, small volume and large capacity, and can install 9 bobbin cases at one time. Greatly prolongs the bobbin case replacement time.
Drawings
Fig. 1 is a schematic structural view of the installation and use state of the invention.
Fig. 2 is a schematic structural diagram of the present invention.
Figure 3 is a schematic view of the structure of the jaw of the present invention.
Fig. 4 is a schematic view of the jaw drive mechanism (jaw advancing mechanism and ascent and descent drive mechanism) of the present invention.
Figure 5 is a schematic view of the jaw retraction drive mechanism of the present invention.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1-5.
An automatic shuttle changing mechanism of a sewing machine comprises a mounting plate 2 connected with the lower part of the sewing machine 1, as shown in figure 1, a grooved wheel rotating disc 3, a clamping jaw 4 and a bottom line detection device 5 are mounted on the mounting plate 2, a replaceable and synchronously rotating bobbin case mounting disc 6 is mounted on the grooved wheel rotating disc 3, the bobbin case mounting disc 6 is locked on the grooved wheel rotating disc 3 through a locking spiral disc 31, and the bobbin case mounting disc 6 can be taken down from the grooved wheel rotating disc 3 by loosening the locking spiral disc 31 so as to change a bobbin case 15, as shown in figure 2. A circle of 10 bobbin case seats 7 are arranged on the mounting plate 6, wherein the bobbin case 15 is arranged in 9 bobbin case seats 7, a vacant position is used for placing the bobbin case 15 to be taken down on the sewing machine 1, a positioning rod 701 is arranged at the center of each bobbin case seat 7, and three positioning claws 702 are arranged on the periphery of each bobbin case seat. The arc-shaped groove teeth of the sheave turntable 3 are meshed with half-moon-shaped positioning teeth 9 in the center of the driving disc 8 to realize positioning, a driving shaft 10 is installed on the driving disc 8, the driving shaft rotates for a circle along with the driving disc to drive the mounting disc 6 to rotate for a station, when the bobbin cases in the bobbin case seat 7 are all empty bobbin cases, the system can remind an operator to replace the bobbin case mounting disc 6, and the new bobbin case mounting disc 6 provided with 9 bobbin cases with threads is reloaded on the sheave turntable 3. The driving disk 8 is driven by a turntable motor 11 mounted on the back of the mounting plate 2. The clamping jaw 4 is shown in fig. 3 and comprises a poking pendulum 25 and a proximity switch 401, the poking pendulum 25 is arranged on an output shaft 13 of a clamping jaw motor 12, the proximity switch 401 and the clamping jaw motor 12 are both arranged on a clamping jaw seat 14, and a box sleeve 16 (three box jaws can be used for replacing a box body) for clamping the shuttle shell 15 is arranged on the clamping jaw seat 14; the clamping jaw seat 14 is connected with a connecting plate 17, as shown in fig. 4, the connecting plate 17 is fixedly connected with telescopic rods 18, the number of the telescopic rods 18 is at least 2, preferably four, the telescopic rods 18 penetrate through a rotary table 19 to be connected with a telescopic propulsion cylinder 20 arranged on the back surface of the mounting plate 2, the rotary table 19 is rotatably arranged on a rotary table seat 21, a connecting rod is fixed on the rotary table 19, and one end of the connecting rod is connected with a bearing 24 at one end of a station switching cylinder 23; specifically, the rotary table 19 may be fixed to and synchronously rotate with a station switching table 22 through a transition table 30, the transition table 30 may be rotatably mounted on a mounting base 21, the station switching table 22 is fixed with a connecting rod, one end of the connecting rod is connected to a bearing 24 at one end of a station switching cylinder 23, as shown in fig. 5, one end of the telescopic rod 18 passes through the rotary table 19 and is connected to a telescopic driving table 28, the telescopic driving table 28 is connected to a cylinder rod of a telescopic propulsion cylinder 20 through a polished rod bolt 29, the diameter of the cylinder rod is greater than the polished rod diameter of the polished rod bolt 29 so as to push the telescopic driving table 28 to move forward and push the telescopic rod 18 to extend outward, and the bolt head of the polished rod bolt 29 drives the telescopic driving table 28 to retract. The bottom line detection device 5 is composed of a detection cylinder 26 and a detection head 27, the detection cylinder 27 is installed on the installation plate 2, and the detection head 27 is installed on a cylinder rod of the detection cylinder 27, as shown in fig. 2.
The automatic bobbin changing mechanism is used for automatically changing the bobbin of the bottom thread of the sewing machine. The main functions realized are as follows:
the sheave realizes intermittent rotation. The cylinder realizes the lifting and the action of the swing angle. The sliding table cylinder drives the displacement detection GT to detect whether the bottom line is used up or not. And a bobbin clamping jaw is clamped.
The working principle of the invention is as follows:
1. the bobbin case gripper 4 is positioned above the bobbin case base 7 of the bobbin case mounting plate 6 at the initial position, and the telescopic rod 18 is in a contracted state.
2. When the bobbin thread inspection GT detection head 27 detects that the bobbin thread is used up in the bobbin case of the sewing machine 1. At this time, the telescopic rod 18 is pushed out by the telescopic pushing cylinder 20, then the station switching cylinder 23 acts to drive the clamping jaw 4 to rotate 90 degrees, the clamping jaw 4 moves to the upper portion of the bobbin case on the sewing machine, the telescopic pushing cylinder 20 retracts the telescopic rod 18, so that the clamping jaw 4 is inserted into the bobbin case 15, the shuttle pendulum 25 acts to clamp a clamping piece on the bobbin case 15, the telescopic pushing cylinder 20 stretches the telescopic rod 18 to drive the clamping jaw 4 to take the bobbin case 15 out of the sewing machine, at this time, the station switching cylinder 23 acts to drive the clamping jaw 4 to rotate 90 degrees reversely, and the clamping jaw 4 aligns the clamped bobbin case with the bobbin case seat 7 without the bobbin case. The telescopic pushing cylinder 20 retracts the telescopic rod 18, inserts the bobbin case 15 into the bobbin case seat 7, rotates the dial pendulum 25 in the opposite direction, releases the jaws, and places the bobbin case in the bobbin case seat 7. The telescopic rod 18 is extended out by the telescopic pushing cylinder 20 to be in a standby state, at the moment, the turntable motor 11 acts to drive the geneva turntable 3 to rotate a station, the bobbin case 15 with the thread is aligned with the clamping jaw 4, the telescopic pushing cylinder 20 retracts the telescopic rod 18 to drive the clamping jaw 4 to retract into the loose case 15 inserted into the bobbin case seat 7 again, the poking pendulum 25 rotates to clamp a clamping piece on the bobbin case 15, after the shuttle case is aligned, the telescopic pushing cylinder 20 extends the telescopic rod 18, the station switching cylinder 23 acts to drive the clamping jaw 4 to rotate 90 degrees so that the bobbin case 15 on the clamping jaw 4 corresponds to the bobbin case seat which is empty on the sewing machine 1, the telescopic pushing cylinder 20 retracts the telescopic rod 18 into the bobbin case seat on the sewing machine 1, the poking pendulum 25 discloses the clamping piece, the telescopic rod 18 is extended out by the telescopic pushing cylinder 20, the station switching cylinder 23 acts to drive the clamping jaw 4 to rotate 90 degrees reversely to be in the standby state, and the bottom thread inspection GT detection head 27 waits for the bottom thread inspection GT to, and the operation is circulated again until 9 bobbin cases 15 are replaced, and the operator is prompted to replace the bobbin case mounting plate 6.
The parts not involved in the present invention are the same as or can be implemented using the prior art.
Claims (8)
1. An automatic shuttle changing mechanism of a sewing machine comprises a mounting plate (2) connected with the lower part of the sewing machine (1), and is characterized in that a sheave turntable (3), a clamping jaw (4) and a bottom line detection device (5) are mounted on the mounting plate (2), a replaceable and synchronously rotating shuttle shell mounting disc (6) is mounted on the sheave turntable (3), a circle of shuttle shell seat (7) is mounted on the shuttle shell mounting disc (6), arc-shaped groove teeth of the sheave turntable (3) are meshed with half-moon-shaped positioning teeth (9) in the center of a driving disc (8) to realize positioning, a driving shaft (10) is mounted on the driving disc (8), the driving shaft rotates along with the driving disc for a circle to drive the mounting disc (6) to rotate for a station, and the driving disc (8) is driven by a turntable motor (11) mounted on the mounting plate (2); the clamping jaw (4) comprises a poking pendulum (25), the poking pendulum (25) is installed on an output shaft (13) of a clamping jaw motor (12), the clamping jaw motor (12) is installed on a clamping jaw seat (14), and a box sleeve (16) for clamping the shuttle shell (15) is arranged on the clamping jaw seat (14); the clamping jaw seat (14) is connected with a connecting plate (17), the connecting plate (17) is fixedly connected with a telescopic rod (18), the telescopic rod (18) penetrates through a rotary table (19) to be connected with a telescopic propulsion cylinder (20) arranged on the back of the mounting plate (2), the rotary table (19) is rotatably arranged on a rotary table seat (21), a connecting rod is fixed on the rotary table (19), and one end of the connecting rod is connected with a bearing (24) at one end of a station switching cylinder (23); the bottom line detection device (5) is composed of a detection cylinder (26) and a detection head (27), the detection cylinder (27) is installed on the installation plate (2), and the detection head (27) is installed on a cylinder rod of the detection cylinder (27).
2. The automatic shuttle changing mechanism of sewing machine according to claim 1, wherein the number of the bobbin case seats (7) is 10, each bobbin case seat (7) is provided with a positioning rod (701) at the center and three positioning claws (702) at the periphery.
3. The sewing machine automatic shuttle changing mechanism according to claim 1, wherein the cartridge case (16) is composed of three cartridge claws.
4. The sewing machine automatic shuttle changing mechanism according to claim 1, wherein the jaw seat (14) is further provided with a proximity switch (401).
5. The automatic shuttle changing mechanism of sewing machine according to claim 1, wherein the number of said telescopic rods (18) is at least 2, preferably four.
6. The automatic shuttle changing mechanism of sewing machine according to claim 1, wherein the rotary plate (19) is fixed and synchronously rotated with the station switching plate (22) through a transition plate (30), the transition plate (30) is rotatably mounted on the mounting seat (21), the station switching plate (22) is fixed with a connecting rod, and one end of the connecting rod is connected with a bearing (24) at one end of the station switching cylinder (23).
7. The automatic shuttle changing mechanism of the sewing machine according to claim 1, wherein one end of the telescopic rod (18) passes through the rotary table (19) and is connected with the telescopic driving disc (28), the telescopic driving disc (28) is connected with the cylinder rod of the telescopic propelling cylinder (20) through the polished rod bolt (29), the diameter of the cylinder rod is larger than that of the polished rod bolt (29) so as to push the telescopic driving disc (28) to move forward, thereby pushing the telescopic rod (18) to extend outwards, and the bolt head of the polished rod bolt (29) drives the telescopic driving disc (28) to retract, thereby driving the telescopic rod (18) to retract.
8. The automatic shuttle changing mechanism of sewing machine according to claim 1, wherein the bobbin case mounting plate (6) is locked on the sheave turntable (3) by a locking spiral (31), and the bobbin case mounting plate (6) can be removed from the sheave turntable (3) by releasing the locking spiral (31) so as to replace the bobbin case (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010980594.2A CN112030388B (en) | 2020-09-17 | 2020-09-17 | Automatic shuttle changing mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010980594.2A CN112030388B (en) | 2020-09-17 | 2020-09-17 | Automatic shuttle changing mechanism of sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112030388A true CN112030388A (en) | 2020-12-04 |
| CN112030388B CN112030388B (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010980594.2A Active CN112030388B (en) | 2020-09-17 | 2020-09-17 | Automatic shuttle changing mechanism of sewing machine |
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| CN (1) | CN112030388B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5829484A (en) * | 1981-08-14 | 1983-02-21 | 岩瀬プリンス株式会社 | Automatic exchange apparatus of lower yarn bobbin in sewing machine |
| US5775243A (en) * | 1996-09-16 | 1998-07-07 | Kinoshita; Haruhiko | Thread exchanger device for sewing machine |
| CN2299687Y (en) * | 1997-06-25 | 1998-12-09 | 萧如文 | Intermittent driving wheel with omnibearing dog and improved structure of driving pin thereof |
| DE102006045061A1 (en) * | 2006-09-21 | 2008-03-27 | Zsk Stickmaschinen Gmbh | Embroidery, quilting or sewing machine, has upper and under thread system, and device is provided for changing under thread |
| CN204959271U (en) * | 2015-09-14 | 2016-01-13 | 浙江中捷缝纫科技有限公司 | Bobbin case automatic exchange device |
| CN107541868A (en) * | 2017-09-20 | 2018-01-05 | 杰克缝纫机股份有限公司 | A kind of simple automatic shuttle changing core apparatus and sewing device |
| CN108642739A (en) * | 2018-06-28 | 2018-10-12 | 苏州琼派瑞特电子科技有限公司 | A kind of automatic shuttle changing core machine peg or spindle replacement mechanism |
-
2020
- 2020-09-17 CN CN202010980594.2A patent/CN112030388B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5829484A (en) * | 1981-08-14 | 1983-02-21 | 岩瀬プリンス株式会社 | Automatic exchange apparatus of lower yarn bobbin in sewing machine |
| US5775243A (en) * | 1996-09-16 | 1998-07-07 | Kinoshita; Haruhiko | Thread exchanger device for sewing machine |
| CN2299687Y (en) * | 1997-06-25 | 1998-12-09 | 萧如文 | Intermittent driving wheel with omnibearing dog and improved structure of driving pin thereof |
| DE102006045061A1 (en) * | 2006-09-21 | 2008-03-27 | Zsk Stickmaschinen Gmbh | Embroidery, quilting or sewing machine, has upper and under thread system, and device is provided for changing under thread |
| CN204959271U (en) * | 2015-09-14 | 2016-01-13 | 浙江中捷缝纫科技有限公司 | Bobbin case automatic exchange device |
| CN107541868A (en) * | 2017-09-20 | 2018-01-05 | 杰克缝纫机股份有限公司 | A kind of simple automatic shuttle changing core apparatus and sewing device |
| CN108642739A (en) * | 2018-06-28 | 2018-10-12 | 苏州琼派瑞特电子科技有限公司 | A kind of automatic shuttle changing core machine peg or spindle replacement mechanism |
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| Publication number | Publication date |
|---|---|
| CN112030388B (en) | 2021-08-31 |
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