CN105908386A - Stitch length adjusting device and sewing machine - Google Patents
Stitch length adjusting device and sewing machine Download PDFInfo
- Publication number
- CN105908386A CN105908386A CN201610492841.8A CN201610492841A CN105908386A CN 105908386 A CN105908386 A CN 105908386A CN 201610492841 A CN201610492841 A CN 201610492841A CN 105908386 A CN105908386 A CN 105908386A
- Authority
- CN
- China
- Prior art keywords
- needle gage
- connecting pin
- connecting rod
- stitch length
- feeding
- 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.)
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Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/22—Work-feeding means with means for setting length of stitch
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention belongs to the technical field of sewing equipment, and in particular discloses a stitch length adjusting device which comprises a spindle, a stitch length adjusting shaft and a connecting pin, wherein an adjusting sleeve which rotates synchronously with the stitch length adjusting shaft is arranged on the stitch length adjusting shaft; a stitch length eccentric gear is arranged on the spindle; the stitch length eccentric gear is connected with the connecting pin through a stitch length connecting rod; the connecting pin is further connected with a feeding crankshaft of a feeding mechanism through a feeding connecting rod; the connecting pin is connected with the adjusting sleeve; the stitch length adjusting shaft rotationally drives the adjusting sleeve to rotate; the connecting pin is driven to displace in the radial direction of the adjusting sleeve; furthermore the initial phase between the stitch length connecting rod and the feeding connecting rod can be changed; the stitch length can be adjusted along with variation of the inclination angle of the feeding crankshaft. The stitch length can be adjusted only by the simple connecting rod, the connecting pin and a sliding groove, cooperation of a plurality of high-precision eccentric cams is not needed, and moreover, the stitch length adjusting device is simple and convenient to mount, so that the problems that a conventional stitch length cloth feeding component is hard to process, low in precision, easy to block and the like can be solved.
Description
Technical field:
The invention belongs to sewing device technical field, refer in particular to a kind of sewing length adjustment device and sewing machine.
Background technology:
Used needle gage governor motion mainly by work feed bias, small eccentricity wheel, work feed connecting rod, eccentric,
Opening pin eccentric cam, open pin and lift torsion multiple parts such as axle composition, part is many and complicated, as shown in Figure 1.Its
Principle is: by will open pin lift torsion axle 1 press out in pin eccentric cam 2 draw-in groove, then rotate main drive shaft,
Change work feed bias 3, small eccentricity wheel 4, eccentric 5, the relative position relation opened between pin eccentric cam 2,
Change the initial phase between feeding connecting rod 6, feeding crank 7, it is achieved needle gage regulates.But to work feed bias 3,
Small eccentricity wheel 4, eccentric 5, open these eccentric elements of pin eccentric cam 2, if machining accuracy and assemble essence
Spend insufficient high, then be easily generated connection loosen, deform, the phenomenon such as friction, in fact it could happen that do not reach precision relatively
High feeding, or the phenomenon that the action such as stuck, burn is unstable.
Summary of the invention:
It is an object of the invention to provide a kind of installation simple, low cost, sewing needle distance regulation easy to adjust
Device.
The present invention is achieved in that
A kind of sewing length adjustment device, includes main shaft, and needle gage regulation axle, connecting pin, on needle gage regulation axle
It is provided with the regulating sleeve with needle gage regulation axle synchronous axial system, main shaft is provided with needle gage eccentric, needle gage
Eccentric is connected with connecting pin by needle gage connecting rod, and connecting pin is also by the feeding of feeding connecting rod Yu feed mechanism
Crank connects, and connecting pin is connected with regulating sleeve, and needle gage regulation axle rotates and drives regulating sleeve to rotate, and drives
Connecting pin radially produces displacement along regulating sleeve, and then changes the initial phase between needle gage connecting rod and feeding connecting rod
Position, drives the change at feeding crank angle of inclination to realize the regulation of needle gage size.
In above-mentioned a kind of sewing length adjustment device, the inner of described regulating sleeve is radially provided with chute,
Being provided with slide block in chute, slide block set is contained on connecting pin.
In above-mentioned a kind of sewing length adjustment device, the outer end of described needle gage regulation axle by locking knob or is pulled
Hands is connected with casing；Or be connected with adjustable plate, adjustable plate is fixed in casing.
In above-mentioned a kind of sewing length adjustment device, described regulating sleeve is locked at needle gage by securing member
On regulation axle；Or described regulating sleeve is integral type structure with needle gage regulation axle.
In above-mentioned a kind of sewing length adjustment device, described needle gage eccentric is locked by securing member and is leading
On axle；Or described needle gage eccentric is integral type structure with main shaft.
In above-mentioned a kind of sewing length adjustment device, one end of described needle gage connecting rod is connected on needle gage eccentric,
The other end is connected on connecting pin.
In above-mentioned a kind of sewing length adjustment device, the outer end of described needle gage regulation axle is connected with motor, passes through
Driven by motor rotates.
In above-mentioned a kind of sewing length adjustment device, one end of described feeding connecting rod is fixed on connecting pin, separately
One end is fixed on alignment pin, and alignment pin is connected with feeding crank.
In above-mentioned a kind of sewing length adjustment device, described regulating sleeve regulates axle synchronous axial system with needle gage.
Further object is that a kind of sewing machine of offer, including sewing length adjustment device as above.
The advantage that the present invention highlights compared to existing technology is:
1, the present invention arranges a single needle gage governor motion, and this needle gage governor motion is worked in coordination with cloth feeding mechanism
Coupling, the needle gage regulation of this mechanism can be by adjusting the inclination angle of the chute relatively horizontal orientation of regulating sleeve
Degree, i.e. can reach the purpose of needle gage size adjustment, owing to this mechanism only needs simple connecting rod and connecting pin and cunning
Groove, it is not necessary to multiple high accuracy eccentric cams cooperate and can realize metering needle away from, and simple installation, therefore
Improving the processing of existing needle gage work feed assembly difficulty, precision is low, easily blocks problem of waiting indefinitely；
2, mechanism of the present invention is simple, can effectively reduce the set-up time, keeps in repair easy accessibility, substituted for former
There is the precision component needed for needle gage regulation, greatly reduce processing cost and the time of part, to a certain extent
Reduce the purchase cost of enterprise；
3, the present invention is while ensureing needle gage size adjustment purpose, can effectively itself reduce into from mechanism
This, also at the sales volume that virtually can improve machine.
Accompanying drawing illustrates:
Fig. 1 is the schematic diagram of background technology.
Fig. 2 is the schematic diagram () of the present invention.
Fig. 3 is the schematic diagram (two) of the present invention.
Fig. 4 is the schematic diagram (three) of the present invention.
Fig. 5 is the exploded perspective view of the present invention.
Fig. 6 is the schematic diagram that the present invention is arranged in casing.
Fig. 7 is the schematic diagram of the regulating sleeve of the present invention.
In Fig. 1: 1, open pin and lift torsion axle；2, pin eccentric cam is opened；3, work feed is eccentric；4, small eccentricity wheel；
5, eccentric；6, feeding connecting rod；7, feeding crank.
In Fig. 2-7: 8, main shaft；9, needle gage regulation axle；10, connecting pin；11, regulating sleeve；12、
Needle gage eccentric；13, needle gage connecting rod；14, feeding connecting rod；15, feeding crank；16, chute；17、
Slide block；18, casing；19, alignment pin.
Detailed description of the invention:
With specific embodiment, the invention will be further described below, sees Fig. 27:
A kind of sewing length adjustment device, includes main shaft 8, needle gage regulation axle 9, connecting pin 10, adjusts at needle gage
It is provided with regulating sleeve 11 on nodal axisn 9, main shaft 8 is provided with needle gage eccentric 12, needle gage eccentric 12
Being connected with connecting pin 10 by needle gage connecting rod 13, connecting pin 10 is also by feeding connecting rod 14 and feed mechanism
Feeding crank 15 connect, connecting pin 10 is connected with regulating sleeve 11, needle gage regulation axle 9 rotate drive adjust
Joint sleeve 11 rotates, and drives connecting pin 10 radially to produce displacement along regulating sleeve 11, and then changes needle gage even
Initial phase between bar 13 and feeding connecting rod 14, drives the change at feeding crank 15 angle of inclination to realize pin
Regulation away from size.
The regulating sleeve 11 of the present invention can regulate axle 9 synchronous axial system with needle gage.
Specifically, one end of described needle gage connecting rod 13 is connected on needle gage eccentric 12, the other end is connected to
On connecting pin 10.On needle gage connecting rod 13, the connection end with needle gage eccentric 12, connecting pin 10 can be circular
Hole, it is also possible to be U-type groove.
One end of described feeding connecting rod 14 is fixed on connecting pin 10, the other end is fixed on alignment pin 19,
Alignment pin 19 is connected with feeding crank 15.
Connecting pin 10 is radially produced displacement and can be realized by following structure along regulating sleeve 11: described regulation
The inner of sleeve 11 is radially provided with chute 16, is provided with slide block 17, slide block 17 in chute 16
It is sleeved on connecting pin 10.
Except said structure, it is also possible to one end of connecting pin 10 to be provided with the sliding part slided along chute 16,
Sliding part and connecting pin 10 are integral structures, and the head at connecting pin 10 arranges back-up ring etc. for needle gage
Connecting rod 13 feeding connecting rod 14 carries out spacing part, needle gage connecting rod 13 feeding connecting rod 14 be arranged on back-up ring with
Between sliding part.
The outer end of the needle gage regulation axle 9 of the present invention is connected with casing 18 by locking knob or spanner；Or with tune
Joint plate connects, and adjustable plate is fixed in casing 18.
The rotation of needle gage regulation axle 9 can pass through manual hand manipulation, it is also possible to outside needle gage regulation axle 9
End is connected with motor, is rotated by driven by motor.
In order to realize the synchronous axial system of regulating sleeve 11 and needle gage regulation axle 9, described regulating sleeve 11 passes through
Securing member is locked in the plane on needle gage regulation axle 9.
In order to realize needle gage eccentric 12 and main shaft 8 synchronous axial system, described needle gage eccentric 12 is by fastening
Part is locked in the plane of main shaft 8.
The operation principle of the present invention:
Needle gage regulation axle 9 and casing 18 coaxial cooperation, needle gage one timing, the end of needle gage regulation axle 9 is passed through
Locking knob or spanner are fixed together with casing 18 or with the secured adjusted plate being arranged in casing 18,
Regulating sleeve 11 is fixed in the plane on needle gage regulation axle 9 by screw lock, and regulating sleeve 11 leaves
Have and be available for the chute 16 that slide block 17 reciprocatingly slides；Needle gage eccentric 12 is fixed on main shaft 8 flat by screw
On face, the one end of needle gage connecting rod 13 is enclosed within needle gage eccentric 12, and the other end passes through connecting pin 10 and send
Material connecting rod 14, slide block 17 coaxial cooperation together；Feeding connecting rod 14 passes through with alignment pin 19, connecting pin 10
Screw tightens together.
Metering needle away from time, by rotate needle gage regulation axle 9 drive regulating sleeve 11 to rotate together, change slide block
17 positions in regulating sleeve 11 chute 16, that is change between needle gage connecting rod 13 and feeding connecting rod 14
Initial phase, the angle of inclination of cloth feeding crank 15 changes simultaneously, thus can realize needle gage size
Regulation.By mating of this mechanism and feed mechanism, realize sewing feeding together.
The present invention also provides for a kind of sewing machine, including above-mentioned sewing length adjustment device.
Above-described embodiment is only one of presently preferred embodiments of the present invention, not limits the present invention's with this
Practical range, therefore: the equivalence change that all shapes under this invention, structure, principle are done, all should
Within being covered by protection scope of the present invention.
Claims (10)
1. a sewing length adjustment device, it is characterised in that: including main shaft, needle gage regulates axle, connecting pin,
Being provided with regulating sleeve on needle gage regulation axle, be provided with needle gage eccentric on main shaft, needle gage eccentric leads to
Crossing needle gage connecting rod to be connected with connecting pin, connecting pin is connected with the feeding crank of feed mechanism also by feeding connecting rod,
Connecting pin is connected with regulating sleeve, and needle gage regulation axle rotates and drives regulating sleeve to rotate, and drives connecting pin along adjusting
Joint sleeve radially produces displacement, and then changes the initial phase between needle gage connecting rod and feeding connecting rod, and drive is sent
The change at material crank angle of inclination realizes the regulation of needle gage size.
A kind of sewing length adjustment device the most according to claim 1, it is characterised in that: described regulating sleeve
The inner be radially provided with chute, in chute, be provided with slide block, slide block set is contained on connecting pin.
A kind of sewing length adjustment device the most according to claim 1, it is characterised in that: described needle gage regulates
The outer end of axle is connected with casing by locking knob or spanner；Or be connected with adjustable plate, adjustable plate is fixed on machine
On shell.
A kind of sewing length adjustment device the most according to claim 1, it is characterised in that: described regulating sleeve
It is locked on needle gage regulation axle by securing member；
Or regulating sleeve is integral type structure with needle gage regulation axle.
A kind of sewing length adjustment device the most according to claim 1, it is characterised in that: described needle gage is eccentric
Wheel is locked on main shaft by securing member；
Or needle gage eccentric is integral type structure with main shaft.
A kind of sewing length adjustment device the most according to claim 1, it is characterised in that: described needle gage connecting rod
One end be connected on needle gage eccentric, the other end is connected on connecting pin.
A kind of sewing length adjustment device the most according to claim 1, it is characterised in that: described needle gage regulates
The outer end of axle is connected with motor, is rotated by driven by motor.
A kind of sewing length adjustment device the most according to claim 1, it is characterised in that: described feeding connecting rod
One end be fixed on connecting pin, the other end is fixed on alignment pin, alignment pin is connected with feeding crank.
A kind of sewing length adjustment device the most according to claim 1, it is characterised in that: described regulating sleeve
Axle synchronous axial system is regulated with needle gage.
10. a sewing machine, it is characterised in that: include that the needle gage as described in any one of claim 19 is adjusted
Regulating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610492841.8A CN105908386B (en) | 2016-06-24 | 2016-06-24 | Needle pitch adjusting device and sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610492841.8A CN105908386B (en) | 2016-06-24 | 2016-06-24 | Needle pitch adjusting device and sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105908386A true CN105908386A (en) | 2016-08-31 |
| CN105908386B CN105908386B (en) | 2020-11-24 |
Family
ID=56759834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610492841.8A Active CN105908386B (en) | 2016-06-24 | 2016-06-24 | Needle pitch adjusting device and sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105908386B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106592116A (en) * | 2017-01-13 | 2017-04-26 | 湖南兴德缝制股份有限公司 | Sewing machine backstitch stitch length error adjustment structure |
| CN106757825A (en) * | 2017-01-19 | 2017-05-31 | 台州市飞龙机械有限公司 | A kind of needle gage adjuster |
| CN107012597A (en) * | 2017-04-28 | 2017-08-04 | 杰克缝纫机股份有限公司 | A kind of simple needle gage governor motion of sewing machine and sewing machine |
| CN109371578A (en) * | 2018-12-29 | 2019-02-22 | 杰克缝纫机股份有限公司 | Adjust the mechanism and its working method of sewing needle distance |
| WO2020147585A1 (en) * | 2019-01-14 | 2020-07-23 | 杰克缝纫机股份有限公司 | Cloth feeding mechanism of sewing machine and sewing machine |
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| GB1095275A (en) * | 1965-06-04 | 1967-12-13 | Utilex Tool Company Ltd | Swingable edge guide for a sewing machine |
| JP2007222282A (en) * | 2006-02-22 | 2007-09-06 | Juki Corp | Sewing machine |
| CN201155032Y (en) * | 2008-01-29 | 2008-11-26 | 耀大精密机械(深圳)有限公司 | Needle gauge compensation apparatus and sewing machine with bend sewing needle gauge compensation using the needle gauge compensation apparatus |
| CN102011274A (en) * | 2010-12-28 | 2011-04-13 | 浙江宝石机电股份有限公司 | Two-gear type stitch length adjusting device of sewing machine |
| CN203440614U (en) * | 2013-05-02 | 2014-02-19 | 新杰克缝纫机股份有限公司 | Control device for needle distance of sewing machine |
| CN104264378A (en) * | 2014-09-25 | 2015-01-07 | 杰克缝纫机股份有限公司 | Needle pitch adjusting mechanism of overedger |
| CN204097699U (en) * | 2014-09-25 | 2015-01-14 | 杰克缝纫机股份有限公司 | Overlock machine cloth feeding mechanism |
| CN204097698U (en) * | 2014-09-25 | 2015-01-14 | 杰克缝纫机股份有限公司 | Overlock machine needle gage governor motion |
| CN204097718U (en) * | 2014-10-23 | 2015-01-14 | 杰克缝纫机股份有限公司 | The needle gage adjustment structure that overlock machine is used and overlock machine |
| CN104499194A (en) * | 2015-01-20 | 2015-04-08 | 浙江中捷缝纫科技有限公司 | Sewing machine roller presser foot stitch and backstitch driving mechanism |
| CN206070127U (en) * | 2016-09-13 | 2017-04-05 | 台州市飞龙机械有限公司 | A kind of work feed component |
-
2016
- 2016-06-24 CN CN201610492841.8A patent/CN105908386B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1095275A (en) * | 1965-06-04 | 1967-12-13 | Utilex Tool Company Ltd | Swingable edge guide for a sewing machine |
| JP2007222282A (en) * | 2006-02-22 | 2007-09-06 | Juki Corp | Sewing machine |
| CN201155032Y (en) * | 2008-01-29 | 2008-11-26 | 耀大精密机械(深圳)有限公司 | Needle gauge compensation apparatus and sewing machine with bend sewing needle gauge compensation using the needle gauge compensation apparatus |
| CN102011274A (en) * | 2010-12-28 | 2011-04-13 | 浙江宝石机电股份有限公司 | Two-gear type stitch length adjusting device of sewing machine |
| CN203440614U (en) * | 2013-05-02 | 2014-02-19 | 新杰克缝纫机股份有限公司 | Control device for needle distance of sewing machine |
| CN104264378A (en) * | 2014-09-25 | 2015-01-07 | 杰克缝纫机股份有限公司 | Needle pitch adjusting mechanism of overedger |
| CN204097699U (en) * | 2014-09-25 | 2015-01-14 | 杰克缝纫机股份有限公司 | Overlock machine cloth feeding mechanism |
| CN204097698U (en) * | 2014-09-25 | 2015-01-14 | 杰克缝纫机股份有限公司 | Overlock machine needle gage governor motion |
| CN204097718U (en) * | 2014-10-23 | 2015-01-14 | 杰克缝纫机股份有限公司 | The needle gage adjustment structure that overlock machine is used and overlock machine |
| CN104499194A (en) * | 2015-01-20 | 2015-04-08 | 浙江中捷缝纫科技有限公司 | Sewing machine roller presser foot stitch and backstitch driving mechanism |
| CN206070127U (en) * | 2016-09-13 | 2017-04-05 | 台州市飞龙机械有限公司 | A kind of work feed component |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106592116A (en) * | 2017-01-13 | 2017-04-26 | 湖南兴德缝制股份有限公司 | Sewing machine backstitch stitch length error adjustment structure |
| CN106757825A (en) * | 2017-01-19 | 2017-05-31 | 台州市飞龙机械有限公司 | A kind of needle gage adjuster |
| CN107012597A (en) * | 2017-04-28 | 2017-08-04 | 杰克缝纫机股份有限公司 | A kind of simple needle gage governor motion of sewing machine and sewing machine |
| CN109371578A (en) * | 2018-12-29 | 2019-02-22 | 杰克缝纫机股份有限公司 | Adjust the mechanism and its working method of sewing needle distance |
| CN109371578B (en) * | 2018-12-29 | 2023-10-31 | 杰克科技股份有限公司 | Mechanism for adjusting needle distance of sewing machine and working method thereof |
| WO2020147585A1 (en) * | 2019-01-14 | 2020-07-23 | 杰克缝纫机股份有限公司 | Cloth feeding mechanism of sewing machine and sewing machine |
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| Publication number | Publication date |
|---|---|
| CN105908386B (en) | 2020-11-24 |
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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: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |
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