CN103184660B - Thread releasing device for sewing machine - Google Patents
Thread releasing device for sewing machine Download PDFInfo
- Publication number
- CN103184660B CN103184660B CN201310090055.1A CN201310090055A CN103184660B CN 103184660 B CN103184660 B CN 103184660B CN 201310090055 A CN201310090055 A CN 201310090055A CN 103184660 B CN103184660 B CN 103184660B
- Authority
- CN
- China
- Prior art keywords
- top board
- thread
- loose ends
- electromagnet
- sewing machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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 thread-loosening device for sewing machine.
Background technology:
On Sewing machines, be generally all provided with tension disk.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 finishes, during automatic shearing, tension disk can not unclamp automatically, needs to arrange thread-loosening device control tension disk and automatically unclamps.In prior art, what thread-loosening device adopted is guy structure.This structure exists: unstable, make when trimming different in sizely, and reduced the weak points such as quality of Sewing machines.
Summary of the invention:
The object of this invention is to provide a kind of stable performance, can when presser foot lifter or trimming, all can realize the thread-loosening device for sewing machine of loose ends action.
The present invention is achieved in that
A kind of thread-loosening device for sewing machine, include the loose ends top board that can rotate around the axis, electromagnet and be used for backing down the auxiliary nail of loose ends that tension disk carries out loose ends, the axis conllinear of the iron core of electromagnet and the auxiliary nail of loose ends or be arranged in parallel, loose ends top board can be rotated around the axis by presser foot lifting device or solenoid actuated respectively and then drive the auxiliary screw top open tension device of loose ends to carry out loose ends action, the action of electromagnet is controlled by controller, described loose ends top board is to be provided with top board one and top board two on the external cylindrical surface of hollow circular cylinder, top board one is arranged on the presser feet lifter plate top of presser foot lifting device, top board two is arranged between the auxiliary nail of loose ends and the iron core of electromagnet, the baseplane of described top board one is connected with the contact of the presser feet lifter plate of presser foot lifting device, one side plane of described top board two touches and is connected with the auxiliary nail joint of loose ends, opposite side plane is connected with the iron core contact of electromagnet.
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, spring suspension screw axis is parallel with shaft axis, on spring suspension screw, is arranged with reduction torsion spring, and one end of reduction torsion spring holds out against on loose ends top board.
Above-mentioned rotating shaft is axial screw, and axial screw is arranged on loose ends top board on casing.
One end of above-mentioned spring suspension screw is arranged on casing.
The present invention compared to existing technology outstanding advantage is:
1, thereby the present invention all can drive loose ends top board to back down tension disk around axial screw rotation by presser foot lifting device and electromagnet and realize loose ends, and presser foot lifter drives and electromagnet drives as 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 is consistent, has promoted the quality of Sewing machines, is applicable in various flat seam machine.
Accompanying drawing explanation:
Fig. 1 is the schematic diagram after the present invention installs;
Fig. 2 is that the present invention installs the schematic diagram after rear 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 invention will be further described below, referring to Fig. 1-6:
A kind of thread-loosening device for sewing machine, include the loose ends top board 10 that can rotate around the axis, electromagnet 20 and be used for backing down the auxiliary nail 40 of loose ends that tension disk 30 carries out loose ends, the iron core 201 of electromagnet 20 is with the axis conllinear of the auxiliary nail 40 of loose ends or be arranged in parallel, loose ends top board 10 can be driven to rotate around the axis and then drive the auxiliary nail 40 of loose ends to back down tension disk 30 by presser foot lifting device 50 or electromagnet 20 respectively and carry out loose ends action, and the action of electromagnet 20 is controlled by controller.Presser foot lifting device 50 or electromagnet 20 drive loose ends top board 10 to be separate action, non-interference.In the auxiliary nail installing hole of the loose ends that is arranged on casing 70 of the auxiliary nail 40 of loose ends, the tension releasing pin 301 of top, one end tension disk 30 of the auxiliary nail 40 of loose ends.
Above-mentioned loose ends top board 10 is to be provided with top board 1 and top board 2 102 on the external cylindrical surface of hollow circular cylinder 103, 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 auxiliary nail 40 of loose ends and the iron core 201 of electromagnet 20, and the hole of hollow circular cylinder 103 is loose ends top board 10 and is arranged on the installing hole on axial screw.Top board 1 is integral type structure with top board 2 102, one-body molded with hollow circular cylinder 103.Angle angle between top board 1 and 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 auxiliary nail 40 contacts of loose ends, 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, on spring suspension screw 60, are arranged with reduction torsion spring, and one end of reduction torsion spring holds out against on loose ends top board 10.Reduction torsion spring can make to automatically reset after the each rotation of loose ends top board 10, and noise is little.
Above-mentioned rotating shaft is axial screw, and axial screw is arranged on loose ends top board 10 on casing 70.
One end of above-mentioned spring suspension screw 60 is arranged on casing 70.
Operation principle of the present invention:
1, when presser foot lifter, while carrying out 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 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 upper process of moving, loose ends top board can rotate counterclockwise around axial screw, drive the auxiliary 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 auxiliary nail 40 of loose ends, and then realize the action of loose ends;
2, when electric cabinet is controlled Sewing machines trimming, electromagnet 20 energisings, the iron core 201 of electromagnet 20 is protruding to be acted in the plane of top board 2 102 of loose ends top board 10, top board 2 102 drives loose ends top board 10 to rotate 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 nothings are interfered, the auxiliary nail 40 of top board 2 102 top loose ends, the tension releasing pin 301 of the auxiliary nail 40 top tension disks 30 of loose ends, and then realize the action of loose ends.
Above-described embodiment is only one of preferred embodiment of the present invention, not with this, limits practical range of the present invention, therefore: all equivalences of doing according to shape of the present invention, structure, principle change, within all should being covered by protection scope of the present invention.
Claims (5)
1. a thread-loosening device for sewing machine, it is characterized in that: include the loose ends top board that can rotate around the axis, electromagnet and be used for backing down the auxiliary nail of loose ends that tension disk carries out loose ends, the axis conllinear of the iron core of electromagnet and the auxiliary nail of loose ends or be arranged in parallel, loose ends top board can be rotated around the axis by presser foot lifting device or solenoid actuated respectively and then drive the auxiliary screw top open tension device of loose ends to carry out loose ends action, the action of electromagnet is controlled by controller, described loose ends top board is to be provided with top board one and top board two on the external cylindrical surface of hollow circular cylinder, top board one is arranged on the presser feet lifter plate top of presser foot lifting device, top board two is arranged between the auxiliary nail of loose ends and the iron core of electromagnet, the baseplane of described top board one is connected with the contact of the presser feet lifter plate of presser foot lifting device, one side plane of described top board two touches and is connected with the auxiliary nail joint of loose ends, opposite side plane is connected with the iron core contact of electromagnet.
2. a kind of thread-loosening device for sewing machine according to claim 1, is characterized in that: a side of described loose ends top board is provided with resetting means.
3. a kind of thread-loosening device for sewing machine according to claim 2, it is characterized in that: described resetting means is: the spring suspension screw that is arranged on rotating shaft one side, spring suspension screw axis is parallel with shaft axis, on spring suspension screw, be arranged with reduction torsion spring, one end of reduction torsion spring holds out against on loose ends top board.
4. according to a kind of thread-loosening device for sewing machine described in claim 1 or 3, it is characterized in that: described rotating shaft is axial screw, and axial screw is arranged on loose ends top board on casing.
5. a kind of thread-loosening device for sewing machine according to claim 3, is characterized in that: one end of described spring suspension screw is arranged on 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 CN103184660A (en) | 2013-07-03 |
| CN103184660B true 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) |
Families Citing this family (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 |
| CN209722475U (en) * | 2019-03-11 | 2019-12-03 | 浙江翔科缝纫机股份有限公司 | A kind of automatic needle-foot-lifting thread releasing 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH071111Y2 (en) * | 1989-03-03 | 1995-01-18 | 蛇の目ミシン工業株式会社 | Thread tension release device for sewing machine with embroidery function |
-
2013
- 2013-03-20 CN CN201310090055.1A patent/CN103184660B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| JP平2-116281U 1990.09.18 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103184660A (en) | 2013-07-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207629694U (en) | A kind of fixture of spindle processing Quick-clamped | |
| CN207890798U (en) | A kind of patch cord coiler | |
| CN103184660B (en) | Thread releasing device for sewing machine | |
| CN103008946A (en) | Automobile wheel casing positioning and clamping mechanism | |
| CN204248446U (en) | A kind of floating type automatic positioning equipment | |
| CN108500675A (en) | A kind of clamping device of axial workpiece | |
| CN203144690U (en) | Sewing machine line loosening device | |
| CN104924173A (en) | Apparatus for automatically polishing casting | |
| CN104878528A (en) | Bottom thread control mechanism for sewing machine | |
| CN202551611U (en) | Bearing plate structure of plug-in machine | |
| CN103624565B (en) | Manually centering machine | |
| CN204715090U (en) | A kind of limit-type automatic airer | |
| CN203293000U (en) | Screw polishing machine | |
| CN201769062U (en) | Quick positioning turn plate | |
| CN105332172A (en) | Thread loosening device | |
| CN204530155U (en) | Needle bar of sewing machine switching mechanism | |
| CN103707095A (en) | Fan-shaped clamping device | |
| CN203955995U (en) | A kind of rotary riveting frock clamp | |
| CN208147527U (en) | A kind of Universal motor of Simple And Practical | |
| CN202840859U (en) | Polishing device of motor rotor excircle | |
| CN202317971U (en) | Rotatable jig for pin grinding machines | |
| CN203210835U (en) | Double-side pad printing jig | |
| CN202825266U (en) | Clamping device for improving drilling precision of pin tumbler lock bodies | |
| CN207517515U (en) | A kind of coil automatic wire twisting fixture | |
| CN203650304U (en) | Composite clamping device |
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 |
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. |
|
| CP03 | Change of name, title or address |