CN105442202B - A kind of thread releasing mechanism for sewing machine and its loose ends method - Google Patents
A kind of thread releasing mechanism for sewing machine and its loose ends method Download PDFInfo
- Publication number
- CN105442202B CN105442202B CN201511000105.8A CN201511000105A CN105442202B CN 105442202 B CN105442202 B CN 105442202B CN 201511000105 A CN201511000105 A CN 201511000105A CN 105442202 B CN105442202 B CN 105442202B
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- thread tension
- steel wire
- disc
- loose ends
- tension releasing
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B47/00—Needle-thread tensioning devices; Applications of tensometers
- D05B47/04—Automatically-controlled tensioning devices
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention belongs to sewing machine technique field, a kind of thread releasing mechanism for sewing machine and its loose ends method are refered in particular to, the mounting hole that the lower end that the clamp of each clamp device assembly is endured passes through strip-shaped hole on thread tension releasing disc and crosses on line plate is connect with line crossing bracket；One end of resetting spring is connected on line crossing bracket, the other end is connected on thread tension releasing disc, and the thread tension releasing disc is also connect with one end of steel wire rope；Driver driving steel wire rope, which moves downward, drives thread tension releasing disc to move down, and the thread tension disc that the loose ends piece on thread tension releasing disc acts on clamp device assembly is made to complete loose ends action；After the completion of loose ends, loose ends sheet reset is driven under the action of resetting spring；The present invention pulls downward on thread tension releasing disc by steel wire rope, the thread tension disc that the loose ends piece on thread tension releasing disc acts on clamp device assembly is set to complete loose ends action, after steel wire rope external force disappears, thread tension releasing disc is pulled to move up reset by resetting spring, thread tension disc also resets again clamp and completes entire loose ends process, simple to operate.
Description
Technical field：
The invention belongs to sewing machine technique field, a kind of thread releasing mechanism for sewing machine and its loose ends method are refered in particular to.
Background technology：
In normal work, suture is located between two thread tension discs in clamp device assembly sewing machine, when sewer makes knots
Shu Shi needs presser foot lifter loose ends to take out cloth.At this point, carrying out loose ends by thread-loosening device.Loose ends side on existing sewing machine
Formula is so that thread tension releasing disc is moved down by thread tension releasing lever rod drives loose ends crank, and the loose ends piece on thread tension releasing disc is made to act on two clamps
Between piece, two thread tension discs are separately completed into loose ends action.For existing thread releasing mechanism there is complicated, number of parts is more, peace
The defects of dress trouble, production cost is high.
Invention content：
The object of the present invention is to provide a kind of thread releasing mechanism for sewing machine simple in structure, easy to adjust and its loose ends methods.
The invention is realized in this way：
A kind of thread releasing mechanism for sewing machine includes the line crossing bracket being fixed on casing, was disposed on line crossing bracket
Line plate, thread tension releasing disc cross line plate and are provided with several, and be arranged at intervals on line crossing bracket above and below, are provided on thread tension releasing disc and mistake
Line plate one-to-one clamp device assembly is provided with strip-shaped hole corresponding with clamp device assembly on the thread tension releasing disc and acts on
The loose ends piece of thread tension disc in corresponding clamp device assembly, the lower end that the clamp of each clamp device assembly is endured pass through on thread tension releasing disc
Strip-shaped hole and the mounting hole crossed on line plate are connect with line crossing bracket；One end of resetting spring is connected on line crossing bracket, the other end connects
On thread tension releasing disc, the thread tension releasing disc is also connect with one end of steel wire rope；When needing loose ends, driver driving steel wire rope moves downward
It drives thread tension releasing disc to move down, the thread tension disc that the loose ends piece on thread tension releasing disc acts on clamp device assembly is made to complete loose ends action；Pine
After the completion of line, loose ends sheet reset, the thread tension disc of clamp device assembly is driven also to reset under the action of resetting spring.
In the above-mentioned technical solutions, it is set with steel wire loop outside the steel wire rope, one end of steel wire loop is fixed on steel wire
It restricts on fixed frame, fixation rack for steel wire rope is fixed on casing.
In the above-mentioned technical solutions, the upper end of the steel wire loop is connected with fixing sleeve, is arranged on fixation rack for steel wire rope
There are fixing sleeve mounting hole, one end setting of fixing sleeve to be fixed in fixing sleeve mounting hole, and by screw.
In the above-mentioned technical solutions, be provided with steel wire head on the end of the steel wire rope, on thread tension releasing disc bending be formed with
Steel wire head mounting plate is provided with the elongate holes of connection on steel wire head mounting plate and thread tension releasing disc, and on thread tension releasing disc
The end set of elongate holes have convenient for steel wire head by through hole, the width of elongate holes is less than the size of steel wire head, steel
Silk head limit is in the upper plane of steel wire head mounting plate.
In the above-mentioned technical solutions, the lower end that the clamp is endured is set with adjusting set, and the upper end of adjusting set is provided with annular
Convex edge, annular convex edge is located at the upper plane of thread tension releasing disc, lower end is arranged in the strip-shaped hole of thread tension releasing disc, the upper plane of annular convex edge with
Corresponding thread tension disc connects, the lower plane of adjusting set is connected with line plate is crossed.
In the above-mentioned technical solutions, extend outwardly simultaneously bending formation upper spring seat on the line crossing bracket, on thread tension releasing disc outward
Extend and bending forms lower spring cup, the upper end of resetting spring is hung on upper spring seat upper and lower end and is hung on lower spring cup.
A kind of loose ends method of thread releasing mechanism for sewing machine, including have the following steps：
(1) when needing loose ends, steel wire rope is pulled downward on by driver, steel wire rope drives thread tension releasing disc to move down, makes loose ends
Loose ends piece on plate acts between two thread tension discs of clamp device assembly two thread tension discs strutting realization loose ends；
(2) after completing loose ends, the event resolves of driver, the resetting spring between thread tension releasing disc and line crossing bracket resets,
Thread tension releasing disc is pulled upwardly, two thread tension discs of clamp device assembly reset clamp, complete entire loose ends action.
The advantage that the present invention protrudes compared with prior art is：
1, the present invention pulls downward on thread tension releasing disc by steel wire rope, and the loose ends piece on thread tension releasing disc is made to act on clamp device assembly
Thread tension disc completes loose ends action, after steel wire rope external force disappears, pulls thread tension releasing disc to move up reset, thread tension disc by resetting spring
It resets again clamp and completes entire loose ends process, it is simple to operate；
2, the configuration of the present invention is simple, part is few, easy to assembly, reduces production cost.
Description of the drawings：
Fig. 1 is the positive stereoscopic diagram of the present invention；
Fig. 2 is the reverse side stereoscopic schematic diagram of the present invention；
Fig. 3 is the front view of the present invention；
Fig. 4 is the A-A sectional views of Fig. 3；
Fig. 5 is the schematic diagram of the thread tension releasing disc of the present invention.
Specific implementation mode：
With specific embodiment, the invention will be further described below, referring to Fig. 1-5：
A kind of thread releasing mechanism for sewing machine includes the line crossing bracket 1 being fixed on casing, is disposed on line crossing bracket 1
Line plate 2, thread tension releasing disc 3 are crossed, line plate 2 is crossed and crosses line plate for two, line plate 2 is crossed and is arranged at intervals with several above and below on line crossing bracket 1,
There are five the present embodiment settings, is provided on thread tension releasing disc 3 and crosses 2 one-to-one clamp device assembly 4 of line plate, the thread tension releasing disc
The pine of the thread tension disc 6 in corresponding clamp device assembly 4 is provided with 4 corresponding strip-shaped hole 5 of clamp device assembly and acted on 3
Line piece 7 is provided with through-hole in each cross on line plate 2, threaded hole corresponding with clamp device assembly 4 is provided on line crossing bracket 1,
The lower end that the clamp of each clamp device assembly 4 endures 8 sequentially passes through the strip-shaped hole 5 on thread tension releasing disc 3, the through-hole on mistake line plate 2 is spirally connected
In the threaded hole of line crossing bracket 1；One end of resetting spring 9 is connected on line crossing bracket 1, the other end is connected on thread tension releasing disc 3, described
Thread tension releasing disc 3 is also connect with one end of steel wire rope 10；When needing loose ends, driver driving steel wire rope 10 moves downward drive thread tension releasing disc
3 move down, and the thread tension disc 6 that the loose ends piece 7 on thread tension releasing disc 3 acts on clamp device assembly 4 is made to complete loose ends action；Loose ends is completed
Afterwards, thread tension releasing disc 3 is driven to reset under the action of resetting spring 9, the thread tension disc 6 of clamp device assembly 4 also resets.
In the above-mentioned technical solutions, it is set with steel wire loop 11 outside the steel wire rope 10, one end of steel wire loop 11 is fixed
On fixation rack for steel wire rope 12, fixation rack for steel wire rope 12 is fixed on casing.
In the above-mentioned technical solutions, the upper end of the steel wire loop 11 is connected with fixing sleeve 13, in fixation rack for steel wire rope 12
On be provided with fixing sleeve mounting hole, one end setting of fixing sleeve 13 is fixed in fixing sleeve mounting hole, and by screw.Screw
Bottom is acted on to be fixed with the outer cylinder of fixing sleeve 13.
In the above-mentioned technical solutions, it is provided with steel wire head 14 on the end of the steel wire rope 10, the bending shape on thread tension releasing disc 3
At there is steel wire head mounting plate 15, be provided with the elongate holes 16 of connection on steel wire head mounting plate 15 and thread tension releasing disc 3, and positioned at
The end set of elongate holes 16 on thread tension releasing disc 3 have convenient for steel wire head 14 by through hole 17, the width of elongate holes 16
Less than the size of steel wire head 14, steel wire head 14 limits in the upper plane of steel wire head mounting plate 15.
In the above-mentioned technical solutions, the clamp endures 8 lower end and is set with adjusting set 18, and the upper end of adjusting set 18 is provided with
Annular convex edge 19, annular convex edge 19 is located at the upper plane of thread tension releasing disc 3, lower end is arranged 5 in the strip-shaped hole of thread tension releasing disc 3, convex annular
Upper plane along 19 is connected with 18 lower planes of the contact connectio of corresponding thread tension disc 6, adjusting set with line plate 2 is crossed.By clamp
Spring in device assembly 4 holds out against thread tension disc 6 in the upper plane of annular convex edge 19, while also driving 18 lower planes of adjusting set
It holds out against on crossing line plate 2.
In the above-mentioned technical solutions, extend outwardly simultaneously bending formation upper spring seat 20 on the line crossing bracket 1, on thread tension releasing disc 3
Extend outwardly and bending forms lower spring cup 21, the upper end of resetting spring 9 is hung on 20 upper and lower end of upper spring seat and is hung on lower bullet
On spring abutment 21.The resetting spring 9 of the present embodiment stretches under external force using extension spring, and external force resets after disappearing.
Upper spring seat 20 and the position of lower spring cup 21 can also be exchanged, resetting spring uses compressed spring, in outer force effect
Lower compression, external force reset after disappearing.
A kind of loose ends method of thread releasing mechanism for sewing machine, including have the following steps：
(1) when needing loose ends, steel wire rope 10 is pulled downward on by driver, steel wire rope 10 drives thread tension releasing disc 3 to move down, makes
Loose ends piece 7 on thread tension releasing disc 3 acts between two thread tension discs 6 of clamp device assembly 4 two thread tension discs 6 strutting realization loose ends；
(2) after completing loose ends, the event resolves of driver, the resetting spring 9 between thread tension releasing disc 3 and line crossing bracket 1 is answered
Position, thread tension releasing disc 3 is pulled upwardly, and two thread tension discs 6 of clamp device assembly 4 reset clamp, completes entire loose ends action.
The driver of the present invention can be shared with the driver in presser foot lifting device, and loose ends is carried out while presser foot lifter.
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 (6)
1. a kind of thread releasing mechanism for sewing machine, it is characterised in that：Include the line crossing bracket being fixed on casing, on line crossing bracket successively
It was provided with line plate, thread tension releasing disc, line plate is crossed and is provided with several, and be arranged at intervals on line crossing bracket above and below, set on thread tension releasing disc
It is equipped with and crosses the one-to-one clamp device assembly of line plate, strip-shaped hole corresponding with clamp device assembly is provided on the thread tension releasing disc
And the loose ends piece of the thread tension disc in corresponding clamp device assembly is acted on, the lower end that the clamp of each clamp device assembly is endured passes through pine
Strip-shaped hole on line plate and the mounting hole excessively on line plate are connect with line crossing bracket；One end of resetting spring is connected on line crossing bracket, is another
One end is connected on thread tension releasing disc, and the thread tension releasing disc is also connect with one end of steel wire rope；When needing loose ends, driver drives steel wire rope
It moves downward and thread tension releasing disc is driven to move down, the thread tension disc that the loose ends piece on thread tension releasing disc acts on clamp device assembly is made to complete loose ends
Action；After the completion of loose ends, loose ends sheet reset, the thread tension disc of clamp device assembly is driven also to reset under the action of resetting spring；
Be provided with steel wire head on the end of the steel wire rope, on thread tension releasing disc bending be formed with steel wire head mounting plate, in steel wire head
It is provided with the elongate holes of connection on mounting plate and thread tension releasing disc, and has just in the end set of the elongate holes on thread tension releasing disc
In steel wire head by through hole, the width of elongate holes is less than the size of steel wire head, and steel wire head is limited in steel wire head mounting plate
Upper plane on.
2. a kind of thread releasing mechanism for sewing machine according to claim 1, it is characterised in that：It is set with steel wire outside the steel wire rope
One end of rope sling, steel wire loop is fixed on fixation rack for steel wire rope, and fixation rack for steel wire rope is fixed on casing.
3. a kind of thread releasing mechanism for sewing machine according to claim 2, it is characterised in that：The upper end of the steel wire loop connects
There is fixing sleeve, fixing sleeve mounting hole is provided on fixation rack for steel wire rope, one end of fixing sleeve is arranged in fixing sleeve mounting hole,
And it is fixed by screw.
4. a kind of thread releasing mechanism for sewing machine according to claim 1, it is characterised in that：The lower end that the clamp is endured is set with
The upper end of adjusting set, adjusting set is provided with annular convex edge, and annular convex edge is located at the upper plane of thread tension releasing disc, lower end is arranged in thread tension releasing disc
Strip-shaped hole in, the upper plane of annular convex edge is connected with corresponding thread tension disc, the lower plane of adjusting set is contacted with line plate is crossed
Connection.
5. a kind of thread releasing mechanism for sewing machine according to claim 1, it is characterised in that：Extend outwardly simultaneously on the line crossing bracket
Bending forms upper spring seat, extends outwardly on thread tension releasing disc and bending forms lower spring cup, the upper end of resetting spring is hung on bullet
Spring abutment upper and lower end is hung on lower spring cup.
6. a kind of loose ends method of thread releasing mechanism for sewing machine, it is characterised in that：Including having the following steps：
(1) when needing loose ends, steel wire rope is pulled downward on by driver, steel wire rope drives thread tension releasing disc to move down, makes on thread tension releasing disc
Loose ends piece act between two thread tension discs of clamp device assembly two thread tension discs strutted into realization loose ends；
(2) after completing loose ends, the event resolves of driver, the resetting spring between thread tension releasing disc and line crossing bracket resets, will be loose
Line plate is pulled upwardly, and two thread tension discs of clamp device assembly reset clamp, completes entire loose ends action；
Be provided with steel wire head on the end of the steel wire rope, on thread tension releasing disc bending be formed with steel wire head mounting plate, in steel wire head
It is provided with the elongate holes of connection on mounting plate and thread tension releasing disc, and has just in the end set of the elongate holes on thread tension releasing disc
In steel wire head by through hole, the width of elongate holes is less than the size of steel wire head, and steel wire head is limited in steel wire head mounting plate
Upper plane on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511000105.8A CN105442202B (en) | 2015-12-28 | 2015-12-28 | A kind of thread releasing mechanism for sewing machine and its loose ends method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511000105.8A CN105442202B (en) | 2015-12-28 | 2015-12-28 | A kind of thread releasing mechanism for sewing machine and its loose ends method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105442202A CN105442202A (en) | 2016-03-30 |
| CN105442202B true CN105442202B (en) | 2018-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511000105.8A Active CN105442202B (en) | 2015-12-28 | 2015-12-28 | A kind of thread releasing mechanism for sewing machine and its loose ends method |
Country Status (1)
| Country | Link |
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| CN (1) | CN105442202B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105780314B (en) * | 2016-04-28 | 2019-05-14 | 杰克缝纫机股份有限公司 | The driving mechanism and sewing machine of presser foot lifter loose ends routing in sewing machine |
| CN106283423A (en) * | 2016-08-26 | 2017-01-04 | 杰克缝纫机股份有限公司 | A kind of sewing machine and hook line secant method |
| CN108085884B (en) * | 2018-01-17 | 2021-01-26 | 杰克缝纫机股份有限公司 | Wire bonding and loosening structure of sewing machine |
| CN108625053B (en) * | 2018-08-20 | 2023-10-31 | 美机科技集团有限公司 | Loose thread wire bonding mechanism and sewing machine with same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011072354A (en) * | 2009-09-29 | 2011-04-14 | Brother Industries Ltd | Thread tension device of sewing machine |
| CN103290625A (en) * | 2012-02-28 | 2013-09-11 | 顾飞龙 | Method for reducing thread using amount during thread shearing of overlock sewing machine |
| CN203741550U (en) * | 2013-08-30 | 2014-07-30 | 深圳市雅诺科技股份有限公司 | Thread release device and sewing equipment adopting same |
| CN204237982U (en) * | 2014-10-28 | 2015-04-01 | 星锐缝纫机(嘉兴)有限公司 | The loose ends structure of Sewing machines |
| CN104499203A (en) * | 2015-01-08 | 2015-04-08 | 杰克缝纫机股份有限公司 | Thread releasing device allowing automatic thread shearing and automatic press foot lifting |
| CN204434913U (en) * | 2015-01-08 | 2015-07-01 | 杰克缝纫机股份有限公司 | The thread-loosening device of flat-seam automatic shearing |
-
2015
- 2015-12-28 CN CN201511000105.8A patent/CN105442202B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011072354A (en) * | 2009-09-29 | 2011-04-14 | Brother Industries Ltd | Thread tension device of sewing machine |
| CN103290625A (en) * | 2012-02-28 | 2013-09-11 | 顾飞龙 | Method for reducing thread using amount during thread shearing of overlock sewing machine |
| CN203741550U (en) * | 2013-08-30 | 2014-07-30 | 深圳市雅诺科技股份有限公司 | Thread release device and sewing equipment adopting same |
| CN204237982U (en) * | 2014-10-28 | 2015-04-01 | 星锐缝纫机(嘉兴)有限公司 | The loose ends structure of Sewing machines |
| CN104499203A (en) * | 2015-01-08 | 2015-04-08 | 杰克缝纫机股份有限公司 | Thread releasing device allowing automatic thread shearing and automatic press foot lifting |
| CN204434913U (en) * | 2015-01-08 | 2015-07-01 | 杰克缝纫机股份有限公司 | The thread-loosening device of flat-seam automatic shearing |
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| Publication number | Publication date |
|---|---|
| CN105442202A (en) | 2016-03-30 |
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Effective date of registration: 20201203 Address after: Room 307, administrative service center, cluster district, No. 9, east section of Jianan Avenue, Taizhou, Zhejiang Province Patentee after: ZHEJIANG JIEKE INTELLIGENT SEWING TECHNOLOGY Co.,Ltd. Address before: 318000 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |
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