CN103184660A - Thread releasing device for sewing machine - Google Patents
Thread releasing device for sewing machine Download PDFInfo
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- CN103184660A CN103184660A CN2013100900551A CN201310090055A CN103184660A CN 103184660 A CN103184660 A CN 103184660A CN 2013100900551 A CN2013100900551 A CN 2013100900551A CN 201310090055 A CN201310090055 A CN 201310090055A CN 103184660 A CN103184660 A CN 103184660A
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- top board
- loose ends
- thread
- electromagnet
- sewing machines
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Abstract
The invention belongs to the technical field of sewing machine accessories, and particularly relates to a thread releasing device for a sewing machine. The thread releasing device comprises thread releasing top plates capable of rotating around a rotating shaft, an electromagnet and a thread releasing auxiliary nail used for pushing a thread clamping device open to release the thread, wherein the electromagnet core and the axial line of the thread releasing auxiliary nail are collinear or arranged in parallel; the thread releasing top plates can be respectively driven by a foot lifting and pressing device or the electromagnet to rotate around the rotating shaft, so as to drive the thread releasing auxiliary nail to push the thread clamping device open to release the thread; and the action of the electromagnet is controlled by a controller. According to the invention, through the foot lifting and pressing device and the electromagnet, the thread releasing top plates can be driven to rotate around a shoulder screw and push the thread clamping device open, so as to realize thread releasing, and foot lifting and pressing driving and electromagnet driving are mutually independent and not influenced; and the thread releasing device is stable in performance, consistent in thread trimming length, and suitable for various flat sewing machines, and improves the quality of the sewing machine.
Description
Technical field:
The invention belongs to Sewing machines accessory technical field, refer in particular to a kind of Sewing machines thread-loosening device.
Background technology:
Generally all be provided with tension disk on the Sewing machines.The effect of tension disk is that tension disk clamps upper thread when Sewing machines is worked, and makes upper thread have suitable elasticity; After sewing finished, during automatic shearing, tension disk can not unclamp automatically, then needed to arrange thread-loosening device control tension disk and unclamped automatically.In the prior art, what thread-loosening device adopted is guy structure.This structure exists: instability, make when trimming different in sizely, and reduced the weak points such as quality of Sewing machines.
Summary of the invention:
The purpose of this invention is to provide a kind of stable performance, can when presser foot lifter or trimming, all can realize the Sewing machines thread-loosening device of loose ends action.
The present invention is achieved in that
A kind of Sewing machines thread-loosening device, include the loose ends top board that can rotate around the axis, electromagnet and being used for backs down the auxilliary nail of loose ends that tension disk carries out loose ends, the iron core of electromagnet and loose ends are assisted the axis conllinear of nail or are be arranged in parallel, the loose ends top board can be rotated around the axis and then drive the auxilliary screw top open tension device of loose ends respectively and carry out the loose ends action by presser foot lifting device or solenoid actuated, the action of electromagnet is controlled by controller.
Above-mentioned loose ends top board is that the external cylindrical surface of hollow circular cylinder is provided with top board one and top board two, and top board one is arranged on the presser feet lifter plate top of presser foot lifting device, and top board two is arranged between the iron core of the auxilliary nail of loose ends and electromagnet.
The baseplane of above-mentioned top board one is connected with the contact of the presser feet lifter plate of presser foot lifting device.
The auxilliary nail joint of one side plane of above-mentioned top board two and loose ends touch is connected, the opposite side plane contacts with the iron core of electromagnet and is connected.
One side of above-mentioned loose ends top board is provided with resetting means.
Above-mentioned resetting means is: be arranged on the spring suspension screw of rotating shaft one side, the spring suspension screw axis is parallel with shaft axis, is arranged with reduction torsion spring at the spring suspension screw, and an end of reduction torsion spring holds out against on the loose ends top board.
Above-mentioned rotating shaft is axial screw, and axial screw is arranged on the loose ends top board on the casing.
One end of above-mentioned spring suspension screw is arranged on the casing.
The advantage that the present invention gives prominence to compared to existing technology is:
1, thereby the present invention all can drive the loose ends top board by presser foot lifting device and electromagnet and back down tension disk realization loose ends around the axial screw rotation, and presser foot lifter drives and electromagnet drives to separate, is independent of each other;
2, the present invention adopts spring reset, and noise is little;
3, stable performance of the present invention, trimming length unanimity has promoted the quality of Sewing machines, is applicable on the various flat seam machine.
Description of drawings:
Fig. 1 is the schematic diagram after the present invention installs;
Fig. 2 is the schematic diagram after the present invention installs back dismounting presser feet;
Fig. 3 is one of schematic diagram of the top board one of the present invention presser feet lifter plate top that is arranged on presser foot lifting device;
Fig. 4 be the top board one of the present invention presser feet lifter plate top that is arranged on presser foot lifting device schematic diagram two;
Fig. 5 is one of schematic diagram of loose ends top board of the present invention;
Fig. 6 be loose ends top board of the present invention schematic diagram two.
The specific embodiment:
With specific embodiment the present invention is further described below, referring to Fig. 1-6:
A kind of Sewing machines thread-loosening device, include the loose ends top board 10 that can rotate around the axis, electromagnet 20 and being used for backs down the auxilliary nail 40 of loose ends that tension disk 30 carries out loose ends, the iron core 201 of electromagnet 20 is assisted the axis conllinear of nail 40 with loose ends or is be arranged in parallel, loose ends top board 10 can be respectively driven rotate around the axis and then drive the auxilliary nail 40 of loose ends by presser foot lifting device 50 or electromagnet 20 and backs down tension disk 30 and carry out the loose ends action, and the action of electromagnet 20 is controlled by controller.It is separate action that presser foot lifting device 50 or electromagnet 20 drive loose ends top board 10, mutually noninterfere.In the auxilliary nail of the loose ends that is arranged on casing 70 installing hole of the auxilliary nail 40 of loose ends, the tension releasing pin 301 of an end top tension disk 30 of the auxilliary nail 40 of loose ends.
Above-mentioned loose ends top board 10 is that the external cylindrical surface of hollow circular cylinder 103 is provided with top board 1 and top board 2 102, top board 1 is arranged on presser feet lifter plate 501 tops of presser foot lifting device 50, top board 2 102 is arranged between the iron core 201 of the auxilliary nail 40 of loose ends and electromagnet 20, and the hole of hollow circular cylinder 103 is loose ends top board 10 and is installed in installing hole on the axial screw.Top board 1 is integral structure with top board 2 102, and is one-body molded with hollow circular cylinder 103.Angle angle between top board 1 and the top board 2 102 can design according to actual conditions.
The baseplane of above-mentioned top board 1 is connected with 501 contacts of the presser feet lifter plate of presser foot lifting device 50.
One side plane of above-mentioned top board 2 102 is connected with auxilliary nail 40 contacts of loose ends, the opposite side plane is connected with iron core 201 contacts of electromagnet 20.
One side of above-mentioned loose ends top board 10 is provided with resetting means.
Above-mentioned resetting means is: be arranged on the spring suspension screw 60 of rotating shaft one side, spring suspension screw 60 axis are parallel with shaft axis, are arranged with reduction torsion spring at spring suspension screw 60, and an end of reduction torsion spring holds out against on loose ends top board 10.Reduction torsion spring automatically resets after can making loose ends top board 10 each rotations, and noise is little.
Above-mentioned rotating shaft is axial screw, and axial screw is arranged on loose ends top board 10 on the casing 70.
One end of above-mentioned spring suspension screw 60 is arranged on the casing 70.
Operation principle of the present invention:
1, when presser foot lifter, when carrying out the presser foot lifter action by portable presser foot lifter handle or by knee control device presser foot lifter or other device drives, presser feet lifter plate 501 on the presser foot lifting device 50 can move up, because top board 1 is arranged on presser feet lifter plate 501 tops, presser feet lifter plate 501 is given one 101 one power that make progress of top board in the process of moving, the loose ends top board namely can rotate counterclockwise around axial screw, drive the auxilliary nail 40 of top board 2 102 top loose ends, the tension releasing pin 301 of the other end top tension disk 30 of the auxilliary nail 40 of loose ends, and then the action of realization loose ends;
2, when electric cabinet control Sewing machines trimming, electromagnet 20 energisings, the iron core 201 of electromagnet 20 is protruding to be acted on the plane of top board 2 102 of loose ends top board 10, top board 2 102 drives loose ends top board 10 and rotates counterclockwise, because top board 1 is arranged on presser feet lifter plate 501 tops, when loose ends top board 10 rotates counterclockwise, top board 1 is in reverse to 501 motions of presser feet lifter plate and can act on presser feet lifter plate 501, presser foot lifting device 50 there is not interference, the auxilliary nail 40 of top board 2 102 top loose ends, the tension releasing pin 301 of the auxilliary nail of loose ends 40 top tension disks 30, and then the action of realization loose ends.
Above-described embodiment is one of preferred embodiment of the present invention only, is not to limit practical range of the present invention with this, so: all equivalences of doing according to shape of the present invention, structure, principle change, and all should be covered by within protection scope of the present invention.
Claims (8)
1. Sewing machines thread-loosening device, it is characterized in that: include the loose ends top board that can rotate around the axis, electromagnet and being used for backs down the auxilliary nail of loose ends that tension disk carries out loose ends, the iron core of electromagnet and loose ends are assisted the axis conllinear of nail or are be arranged in parallel, the loose ends top board can be rotated around the axis and then drive the auxilliary screw top open tension device of loose ends respectively and carry out the loose ends action by presser foot lifting device or solenoid actuated, the action of electromagnet is controlled by controller.
2. a kind of Sewing machines thread-loosening device according to claim 1, it is characterized in that: the external cylindrical surface that described loose ends top board is hollow circular cylinder is provided with top board one and top board two, top board one is arranged on the presser feet lifter plate top of presser foot lifting device, and top board two is arranged between the iron core of the auxilliary nail of loose ends and electromagnet.
3. a kind of Sewing machines thread-loosening device according to claim 2 is characterized in that: the baseplane of described top board one is connected with the presser feet lifter plate contact of presser foot lifting device.
4. a kind of Sewing machines thread-loosening device according to claim 2 is characterized in that: a side plane of described top board two touch with the auxilliary nail joint of loose ends is connected, the opposite side plane contacts with the iron core of electromagnet and is connected.
5. a kind of Sewing machines thread-loosening device according to claim 1, it is characterized in that: a side of described loose ends top board is provided with resetting means.
6. a kind of Sewing machines thread-loosening device according to claim 5, it is characterized in that: described resetting means is: the spring suspension screw that is arranged on rotating shaft one side, the spring suspension screw axis is parallel with shaft axis, be arranged with reduction torsion spring at the spring suspension screw, an end of reduction torsion spring holds out against on the loose ends top board.
7. according to claim 1 or 6 described a kind of Sewing machines thread-loosening devices, it is characterized in that: described rotating shaft is axial screw, and axial screw is arranged on the loose ends top board on the casing.
8. a kind of Sewing machines thread-loosening device according to claim 6, it is characterized in that: an end of described spring suspension screw is arranged on the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310090055.1A CN103184660B (en) | 2013-03-20 | 2013-03-20 | Thread releasing device for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310090055.1A CN103184660B (en) | 2013-03-20 | 2013-03-20 | Thread releasing device for sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103184660A true CN103184660A (en) | 2013-07-03 |
| CN103184660B CN103184660B (en) | 2014-07-16 |
Family
ID=48676089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310090055.1A Active CN103184660B (en) | 2013-03-20 | 2013-03-20 | Thread releasing device for sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103184660B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108796861A (en) * | 2017-05-02 | 2018-11-13 | 天津宝盈电脑机械有限公司 | A kind of independent driving sewing machine head |
| CN110219101A (en) * | 2019-03-18 | 2019-09-10 | 浙江翔科缝纫机股份有限公司 | A kind of sewing machine and presser foot lifter thread releasing mechanism |
| WO2020181904A1 (en) * | 2019-03-11 | 2020-09-17 | 浙江翔科缝纫机股份有限公司 | Automatic pressing foot lifting thread-loosening mechanism and sewing machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02116281U (en) * | 1989-03-03 | 1990-09-18 | ||
| CN1231355A (en) * | 1998-04-07 | 1999-10-13 | 重机株式会社 | Thread loosing device for sewing machine |
| CN101139785A (en) * | 2007-09-26 | 2008-03-12 | 中捷缝纫机股份有限公司 | Control device for thread gripper of sewing machine |
| CN101314897A (en) * | 2008-04-25 | 2008-12-03 | 中捷缝纫机股份有限公司 | Control device for yarn trapper in sewing machine |
| CN203144690U (en) * | 2013-03-20 | 2013-08-21 | 新杰克缝纫机股份有限公司 | Sewing machine line loosening device |
-
2013
- 2013-03-20 CN CN201310090055.1A patent/CN103184660B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02116281U (en) * | 1989-03-03 | 1990-09-18 | ||
| CN1231355A (en) * | 1998-04-07 | 1999-10-13 | 重机株式会社 | Thread loosing device for sewing machine |
| CN101139785A (en) * | 2007-09-26 | 2008-03-12 | 中捷缝纫机股份有限公司 | Control device for thread gripper of sewing machine |
| CN101314897A (en) * | 2008-04-25 | 2008-12-03 | 中捷缝纫机股份有限公司 | Control device for yarn trapper in sewing machine |
| CN203144690U (en) * | 2013-03-20 | 2013-08-21 | 新杰克缝纫机股份有限公司 | Sewing machine line loosening device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108796861A (en) * | 2017-05-02 | 2018-11-13 | 天津宝盈电脑机械有限公司 | A kind of independent driving sewing machine head |
| WO2020181904A1 (en) * | 2019-03-11 | 2020-09-17 | 浙江翔科缝纫机股份有限公司 | Automatic pressing foot lifting thread-loosening mechanism and sewing machine |
| CN110219101A (en) * | 2019-03-18 | 2019-09-10 | 浙江翔科缝纫机股份有限公司 | A kind of sewing machine and presser foot lifter thread releasing mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103184660B (en) | 2014-07-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JACK SEWING CO., LTD. Free format text: FORMER NAME: NEW JACK SEWING MACHINE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 318000 Taizhou Airport Road, Jiaojiang District, Zhejiang, No. 15 Patentee after: JACK SEWING MACHINE CO., LTD. Address before: 318000 Taizhou Airport Road, Jiaojiang District, Zhejiang, No. 15 Patentee before: New Jack Sewing Machine Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
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. |