CN105420948B - A kind of thread cutting mechanism of sewing machine driving device - Google Patents
A kind of thread cutting mechanism of sewing machine driving device Download PDFInfo
- Publication number
- CN105420948B CN105420948B CN201511009327.6A CN201511009327A CN105420948B CN 105420948 B CN105420948 B CN 105420948B CN 201511009327 A CN201511009327 A CN 201511009327A CN 105420948 B CN105420948 B CN 105420948B
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- Prior art keywords
- guide
- driver
- plate
- guide rod
- fixed
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Classifications
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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
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2207/00—Use of special elements
- D05D2207/05—Magnetic devices
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention belongs to technical field of sewing machines, refer in particular to a kind of thread cutting mechanism of sewing machine driving device, include the driver being fixed on casing, connecting plate is connected on the motion bar of driver, connecting plate is connect with guide rod, the spring base being fixed on casing is provided on guide rod, reset spring is sleeved on outside guide rod, and one end of reset spring is held out against on spring base, the other end is held out against on retaining ring, retaining ring is fixed on the guide bar, adjust the elastic force that the position of retaining ring on the guide bar adjusts reset spring in turn, it is additionally provided with guide block on the guide bar, guide block is connect by trimming connecting rod with cutter plate driver bar, the motion bar movement of driver drives guide rod mobile, compression reseting spring, guide block drives the movement of cutter plate driver bar with guide rod is mobile；The present invention passes through the installation site for changing the mobile trimming electromagnet targeting part of trimming electromagnet structure, and changes the connection type of electromagnet and targeting part.
Description
Technical field:
The invention belongs to technical field of sewing machines, refer in particular to a kind of thread cutting mechanism of sewing machine driving device.
Background technique:
Existing flat-seam trimming electromagnet structure is that external form is larger, therefore the space occupied is big, and cost is also higher.Lower trimming
Knife connecting rod is earlier (leaning on machine head direction), and existing trimming electromagnet installation is general rearward, it is necessary to very long connecting rod
It goes to connect with trimming connecting rod, cause unstable.Therefore, higher to the required precision of electromagnet, not so it is easy to appear stuck feelings
Condition causes sewing machine trimming function can not work normally.
Summary of the invention:
The object of the present invention is to provide a kind of stable structure, be less prone to stuck situation thread cutting mechanism of sewing machine driving dress
It sets.
The present invention is implemented as follows:
A kind of thread cutting mechanism of sewing machine driving device includes the driver being fixed on casing, the motion bar of driver
On be connected with connecting plate, connecting plate is connect with guide rod, and the spring base being fixed on casing, reset spring are provided on guide rod
It is sleeved on outside guide rod, and one end of reset spring is held out against on spring base, the other end is held out against on retaining ring, retaining ring, which is fixed on, leads
To on bar, the elastic force that the position of retaining ring on the guide bar adjusts reset spring in turn is adjusted, is additionally provided with guide block on the guide bar,
Guide block is connect by trimming connecting rod with cutter plate driver bar, and the motion bar movement of driver drives guide rod mobile, and compression resets bullet
Spring, guide block drive cutter plate driver bar to act with guide rod is mobile.
In the above-mentioned technical solutions, the guide plate that one end is fixed on casing, guide plate are additionally provided on the guide rod
Positioned at the outer end of guide block.
In the above-mentioned technical solutions, the guide plate is connect with spring base by intermediate plate, and the intermediate plate is fixed on machine
On shell, and guide plate is connect by intermediate plate with casing with spring base.
In the above-mentioned technical solutions, the connecting plate is connect by crank block with guide rod, between crank block and spring base
Guide rod outside be set with crash roll.
In the above-mentioned technical solutions, the connecting plate is also connect with one end of wirerope, the other end and loose ends of wirerope
Mechanism connection.
In the above-mentioned technical solutions, it is set with wirerope shell outside the wirerope, one end of wirerope shell passes through pressure
Plate is fixed on a mounting board, and mounting plate is fixed on casing.
In the above-mentioned technical solutions, it is provided with vertical plate on the connecting plate, wirerope mounting hole, steel is provided on vertical plate
The head of cord is provided with spacing head, and the size of spacing head is greater than the aperture of wirerope mounting hole.
In the above-mentioned technical solutions, the driver is fixed on casing by mounting base.
In the above-mentioned technical solutions, the outer end of the motion bar of the driver is provided with opening, one end setting of connecting plate
One end of motion bar and connecting plate is connected in opening, and through axial screw.
In the above-mentioned technical solutions, it is set with dust cover outside the motion bar, one end of dust cover is fixed on drive side
On face.
The advantage that the present invention protrudes compared with prior art is:
The present invention passes through the installation site for changing the mobile trimming electromagnet targeting part of trimming electromagnet structure, and changes electricity
The connection type of magnet and targeting part.Both it is big to have solved the problems, such as that electromagnet with trimming connecting rod connect unstable and possessive volume
The problem of, while the electromagnet (the concentricity no requirement (NR) to electromagnetic core) of single head can be used, electromagnet card will not occur
Dead phenomenon.
Detailed description of the invention:
Fig. 1 is one of stereoscopic schematic diagram of the invention；
Fig. 2 is the two of stereoscopic schematic diagram of the invention；
Fig. 3 is one of the schematic diagram that the present invention is mounted on casing；
Fig. 4 is the two of the schematic diagram that the present invention is mounted on casing.
Specific embodiment:
With specific embodiment, the invention will be further described below, referring to Fig. 1-4:
A kind of thread cutting mechanism of sewing machine driving device includes the driver 2 being fixed on casing 1, the activity of driver 2
Connecting plate 4 is connected on bar 3, connecting plate 4 is connect with guide rod 6 by crank block 5, is provided on guide rod 6 and is fixed on casing 1
On spring base 7, reset spring 8 is sleeved on outside guide rod 6, and one end of reset spring 8 is held out against on spring base 7, the other end
It holds out against on retaining ring 9, retaining ring 9 is fixed on guide rod 6, is adjusted position of the retaining ring 9 on guide rod 6 and is adjusted reset spring in turn
8 elastic force is additionally provided with guide block 10 on guide rod 6, and guide block 10 is connect by trimming connecting rod 11 with cutter plate driver bar 12, cutterhead
The middle part of drive rod 12 is connect by cutterhead screw with casing 1, and cutter plate driver bar 12 can be swung around cutterhead screw, cutter plate driver
The other end of bar 12 and the knife rest 28 of thread cutting mechanism connect, and the movement of motion bar 3 of driver 2 drives guide rod 6 mobile, and compression is multiple
Position spring 8, guide block 10 drives cutter plate driver bar 12 to swing around cutterhead screw with guide rod 6 is mobile, and then drives thread cutting mechanism
Knife rest 28 and trimming action is carried out loaded on the blade 29 on knife rest 28 is mobile.
The present invention separates the targeting part on driver 2 with 2 ontology of driver, and driver 2 may be implemented and be mounted on
Afterwards, preceding, this structure has the advantages that one, does not account for lateral volume targeting part；Two, targeting part is close to trimming connecting rod
11, structure is more stable.Wherein part of the targeting part between trimming connecting rod 11 and driver 2.
In the above-mentioned technical solutions, it is additionally provided with the guide plate 13 that one end is fixed on casing 1 on the guide rod 6, leads
It is located at the outer end of guide block 10 to plate 13.Reset spring 8, retaining ring 9, guide block 10 are between guide plate 13, spring base 7.
In the above-mentioned technical solutions, the guide plate 13 is connect with spring base 7 by intermediate plate 14, and the intermediate plate 14 is solid
It is scheduled on casing 1, and guide plate 13 is connect by intermediate plate 14 with casing 1 with 7, spring.Guide plate 13, spring base 7 and centre
Plate 14 is an integral structure, and is respectively formed guide plate 13 and spring base 7 by 14 both ends bending of intermediate plate, integral structure is being processed
It is easy to control the concentricity of guide plate 13 and the hole on spring base 7 in the process, is also possible to split type structure.Intermediate plate 14 passes through
Screw is fixed on casing 1.
In the above-mentioned technical solutions, crash roll 15 is set with outside the guide rod 6 between the crank block 5 and spring base 7.
In the above-mentioned technical solutions, the connecting plate 4 is also connect with one end of wirerope 16, the other end of wirerope 16 with
Thread releasing mechanism connection.The motion bar 3 of driver 2 also drives wirerope 16 while driving 4 movement of connection, realizes loose ends function
Energy.
In the above-mentioned technical solutions, wirerope shell 17, one end of wirerope shell 17 are set with outside the wirerope 16
It is fixed on mounting plate 19 by pressing plate 18, mounting plate 19 is fixed on casing 1.
In the above-mentioned technical solutions, it is provided with vertical plate 20 on the connecting plate 4, wirerope installation is provided on vertical plate 20
Hole 21, the head of wirerope 16 are provided with spacing head 22, and the size of spacing head 22 is greater than the aperture of wirerope mounting hole 21.
In the above-mentioned technical solutions, the driver 2 is fixed on casing 1 by mounting base 23.
In the above-mentioned technical solutions, the outer end of the motion bar 3 of the driver 2 is provided with opening 24, one end of connecting plate 4
Motion bar 3 is connect by setting in opening 24, and through axial screw 25 with one end of connecting plate 4.
Connection between driver 2 of the invention and targeting part has certain flexibility, in actuator body and work
In the case that concentricity between lever 3 is bad, stuck situation will not occur.
In the above-mentioned technical solutions, it is set with dust cover 26 outside the motion bar 3, one end of dust cover 26 is fixed on driving
On the end face of device 2.Fixed form, which can be, is directly fixed by screw or one end of dust cover 26 is pressed by dust-proof pressing plate 27
Firmly, then dust-proof pressing plate 27 is fixed on the end face of driver 2 by screw.
Driver 2 of the invention is electromagnet, then motion bar 3 is iron core；Or be cylinder, then motion bar 3 is cylinder rod,
It can be other drivers.
The working principle of the invention (by taking driver 2 is electromagnet as an example):
When work of electromagnet, iron core is moved to X-direction, while connecting plate 4 moves to drive guide rod 6 to X-direction
It is moved to X-direction, due to the limitation of retaining ring 9, reset spring 8 on guide rod 6 can be compressed with work of electromagnet, guide rod
Guide block 10 on 6 drives cutter plate driver bar 12 by trimming connecting rod 11, realizes trimming function.Wirerope shell 17 passes through pressing plate 18
It is fixed with mounting plate 19, while wirerope 16 is driven by the vertical plate 20 on connecting plate 4, loose ends is realized while cutterhead trimming
Function.
After the completion of trimming, driving source electromagnet can be powered off, at this point, compressed reset spring 8 can be replied to retaining ring 9 one
Power moves retaining ring 9 to the opposite direction of X, and retaining ring 9 drives guide rod 6, guide block 10, crank block 5, and crash roll 15 is transported in electromagnet
Antihunt action, plunger return, so iterative motion always are played during row.
The pressure size of reset spring 8 can be adjusted by adjusting position of the retaining ring 9 on guide rod 6, to adapt to not
With the use under operating condition, the position of cutter plate driver bar 12, side can be adjusted by adjusting position of the guide block 10 on guide rod 6
It is debugged when cutterhead is just installed.
Position of the guide block 10 on guide rod 6 is unlimited, can arbitrarily adjust electromagnet in the horizontal direction in a certain range
Position, can equally realize trimming function by adjusting position of the guide block 10 on guide rod 6 after fixed electromagnet.
Above-described embodiment is only one of presently preferred embodiments of the present invention, and but not intended to limit the scope of the present invention, therefore:
The equivalence changes that all shape, structures under this invention, principle are done, should all be covered by within protection scope of the present invention.
Claims (8)
1. a kind of thread cutting mechanism of sewing machine driving device, it is characterised in that: include the driver being fixed on casing, driver
The front end of motion bar be sequentially arranged connecting plate, guide rod, be connected with connecting plate on the motion bar of driver, connecting plate with lead
It is connected to bar, is provided with the spring base being fixed on casing on guide rod, reset spring is sleeved on outside guide rod, and reset spring
One end hold out against on spring base, the other end is held out against on retaining ring, retaining ring is fixed on the guide bar, adjusts retaining ring on the guide bar
Position so that adjust the elastic force of reset spring, be additionally provided with guide block on the guide bar, guide block is driven by trimming connecting rod and cutterhead
The motion bar movement of lever connection, driver drives guide rod mobile, compression reseting spring, and guide block is with the mobile band moving knife of guide rod
The movement of dish driving bar, the outer end of the motion bar of the driver are provided with opening, and one end of connecting plate is arranged in opening, and leads to
Axial screw is crossed to connect one end of motion bar and connecting plate；The connecting plate is connect by crank block with guide rod, crank block
Crash roll is set with outside guide rod between spring base.
2. a kind of thread cutting mechanism of sewing machine driving device according to claim 1, it is characterised in that: on the guide rod also
It is provided with the guide plate that one end is fixed on casing.
3. a kind of thread cutting mechanism of sewing machine driving device according to claim 2, it is characterised in that: the guide plate and bullet
Spring abutment is connected by intermediate plate, and the intermediate plate is fixed on casing, and guide plate and spring base are connected by intermediate plate and casing
It connects.
4. a kind of thread cutting mechanism of sewing machine driving device according to claim 1, it is characterised in that: the connecting plate also with
One end of wirerope connects, and the other end of wirerope is connect with thread releasing mechanism.
5. a kind of thread cutting mechanism of sewing machine driving device according to claim 4, it is characterised in that: the wirerope housing
Equipped with wirerope shell, one end of wirerope shell is fixed on a mounting board by pressing plate, and mounting plate is fixed on casing.
6. a kind of thread cutting mechanism of sewing machine driving device according to claim 4, it is characterised in that: set on the connecting plate
It is equipped with vertical plate, wirerope mounting hole is provided on vertical plate, the head of wirerope is provided with spacing head, and the size of spacing head is greater than
The aperture of wirerope mounting hole.
7. a kind of thread cutting mechanism of sewing machine driving device according to claim 1, it is characterised in that: the driver is logical
Mounting base is crossed to be fixed on casing.
8. a kind of thread cutting mechanism of sewing machine driving device according to claim 1, it is characterised in that: outside the motion bar
It is set with dust cover, one end of dust cover is fixed on driver end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511009327.6A CN105420948B (en) | 2015-12-29 | 2015-12-29 | A kind of thread cutting mechanism of sewing machine driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511009327.6A CN105420948B (en) | 2015-12-29 | 2015-12-29 | A kind of thread cutting mechanism of sewing machine driving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105420948A CN105420948A (en) | 2016-03-23 |
| CN105420948B true CN105420948B (en) | 2019-07-09 |
Family
ID=55499471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511009327.6A Active CN105420948B (en) | 2015-12-29 | 2015-12-29 | A kind of thread cutting mechanism of sewing machine driving device |
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| Country | Link |
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| CN (1) | CN105420948B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839300B (en) * | 2016-04-28 | 2018-12-04 | 杰克缝纫机股份有限公司 | Integrate the driving mechanism and sewing machine of trimming, loose ends, routing and presser foot lifter |
| CN105714485B (en) * | 2016-04-28 | 2019-03-22 | 杰克缝纫机股份有限公司 | The thread cutting mechanism of use in sewing machine |
| CN105970506B (en) * | 2016-06-07 | 2018-12-04 | 杰克缝纫机股份有限公司 | A kind of upper thread cutting mechanism of sewing machine |
| CN105908397B (en) * | 2016-06-29 | 2019-02-19 | 拓卡奔马机电科技有限公司 | The driving device and sewing machine of thread cutting mechanism of sewing machine |
| CN109930312B (en) * | 2017-12-16 | 2021-06-01 | 杰克缝纫机股份有限公司 | Lower trimming mechanism directly driven by cylinder |
| CN110130012B (en) * | 2019-07-01 | 2021-03-30 | 浙江龙泰缝纫设备有限公司 | Thread cutting device of sewing machine |
| CN112210909A (en) * | 2020-10-14 | 2021-01-12 | 刘爱鸣 | Thread cutting device for garment processing |
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| CN202865569U (en) * | 2012-08-11 | 2013-04-10 | 新杰克缝纫机股份有限公司 | Electromagnet trimming mechanism of overlock machine |
| CN203411771U (en) * | 2013-08-27 | 2014-01-29 | 中捷缝纫机股份有限公司 | Trimming driving device of sewing machine |
| CN103993434A (en) * | 2014-06-05 | 2014-08-20 | 新杰克缝纫机股份有限公司 | Thread trimming driving mechanism of sewing machine |
| CN204434915U (en) * | 2015-01-08 | 2015-07-01 | 杰克缝纫机股份有限公司 | The thread-loosening device of a kind of automatic shearing and automatic needle-foot-lifting |
| CN204875126U (en) * | 2015-08-22 | 2015-12-16 | 台州市三本缝制设备有限公司 | Automatic trimming top cop latch device of sewing machine circular knife |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201620263U (en) * | 2010-02-26 | 2010-11-03 | 顾飞龙 | Thread cutting structure of extending wrist type industrial sewing machine |
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2015
- 2015-12-29 CN CN201511009327.6A patent/CN105420948B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202865569U (en) * | 2012-08-11 | 2013-04-10 | 新杰克缝纫机股份有限公司 | Electromagnet trimming mechanism of overlock machine |
| CN203411771U (en) * | 2013-08-27 | 2014-01-29 | 中捷缝纫机股份有限公司 | Trimming driving device of sewing machine |
| CN103993434A (en) * | 2014-06-05 | 2014-08-20 | 新杰克缝纫机股份有限公司 | Thread trimming driving mechanism of sewing machine |
| CN204434915U (en) * | 2015-01-08 | 2015-07-01 | 杰克缝纫机股份有限公司 | The thread-loosening device of a kind of automatic shearing and automatic needle-foot-lifting |
| CN204875126U (en) * | 2015-08-22 | 2015-12-16 | 台州市三本缝制设备有限公司 | Automatic trimming top cop latch device of sewing machine circular knife |
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| Publication number | Publication date |
|---|---|
| CN105420948A (en) | 2016-03-23 |
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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. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |