CN103114390A - Sewing machine with adjustable needle rod and take-up stroke - Google Patents
Sewing machine with adjustable needle rod and take-up stroke Download PDFInfo
- Publication number
- CN103114390A CN103114390A CN2011103651320A CN201110365132A CN103114390A CN 103114390 A CN103114390 A CN 103114390A CN 2011103651320 A CN2011103651320 A CN 2011103651320A CN 201110365132 A CN201110365132 A CN 201110365132A CN 103114390 A CN103114390 A CN 103114390A
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- needle bar
- take
- stroke
- sewing machines
- modulation
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Abstract
The invention relates to a sewing machine with an adjustable needle rod and a take-up stroke. The sewing machine comprises a machine body, a main shaft transmission mechanism, a take-up transmission mechanism, a crank and a needle rod transmission mechanism. The main shaft transmission mechanism comprises a rotary shaft and a bob-weight cam connected with the rotary shaft in a sleeved mode, wherein the rotary shaft is connected with the machine body in a penetrating mode. The take-up transmission mechanism comprises a balance arranged at one side of the bob-weight cam, an eccentric shaft located in a shaft hole and a swinging arm, wherein one end of the swinging arm is in pivot connection with the eccentric shaft, and the other end of the swinging arm is in pivot connection with the balance. One end of the crank penetrates through the balance and is fixed on the bob-weight cam. The needle rod transmission mechanism comprises an eccentric wheel, the needle rod connected with the machine body in a sliding mode and a connecting rod, wherein the eccentric wheel is connected with the other end of the crank in a positioning and sleeved mode, one end of the connecting rod is in pivot connection with the eccentric wheel, and the other end of the connecting rod is in connection with the needle rod. The sewing machine can be adjustably used according to stitching requirements of fabrics with different thicknesses.
Description
Technical field
The present invention relates to a kind of Sewing machines, but the Sewing machines of espespecially a kind of modulation needle bar and take-up stroke.
Background technology
Known Sewing machines mainly comprises a body, a mainshaft mechanism, a thread take-up mechanism, a bent axle and a needle bar mechanism, body offers an axis hole, mainshaft mechanism comprises a rotating shaft and a weighted cam, rotating shaft is connected to described internal body, in the axis hole that thread take-up mechanism comprises the Libra that is equipped on described weighted cam side, be connected to described body and the body of rod, the end that are fixed be articulated in the swing arm that the described body of rod and the other end are articulated in described Libra; One end of bent axle wears described Libra and is fixed on described weighted cam; Described needle bar mechanism comprises the needle bar that slips body, the other end that two ends connect respectively described bent axle and a connecting rod of described needle bar.
Yet, known Sewing machines only can be applicable to single thickness or the charge car of micro-varied in thickness is sewed on, during for the cloth sewing of different-thickness, shift motion and sewing effect and sewing performance close association due to shift motion and the take-up of needle bar, therefore general clothing manufacturing producer is all that the Sewing machines of buying in addition other various different sizes uses, and so will cause the acquisition cost of equipment or machine to increase substantially; In addition due to the purchasing in a large number of this machine, certainly will need again to prepare the arrangement that larger factory building space provides each held sewing machine, more cause improving constantly of factory building cost.
Summary of the invention
In view of this, but the object of the present invention is to provide the Sewing machines of a kind of modulation needle bar and take-up stroke, it is by eccentric shaft and eccentric setting, can adjust use in response to the sewing demand of the cloth of various different-thickness.
In order to reach above-mentioned purpose, but the invention provides the Sewing machines of a kind of modulation needle bar and take-up stroke, but the Sewing machines of described modulation needle bar and take-up stroke comprises:
One body, it offers an axis hole;
One spindle drive, the weighted cam that it comprises a rotating shaft and is socketed on described rotating shaft, and rotating shaft is connected to described body;
One Drive mechanism of thread-taking-up mechanism, it comprises the Libra that is equipped on described weighted cam side, be positioned an eccentric shaft, an end in described axis hole is articulated in the swing arm that described eccentric shaft and the other end are articulated in described Libra;
One bent axle, one end wear described Libra and are fixed on described weighted cam; And
One needle bar transmission mechanism, it comprises that positioning sleeve is connected to an eccentric wheel of the described bent axle other end, slips a needle bar, a described eccentric wheel of end pivot joint of described body and the connecting rod that the other end connects described needle bar.
As preferred version, but the Sewing machines of wherein said modulation needle bar and take-up stroke is a single needle sewing machine for covering chain stitch.
As preferred version, wherein said eccentric shaft comprises that a standard shaft section reaches an off-axis section that is formed with eccentric distance with described standard shaft section, and described standard shaft section is connected in the axis hole of described body, and described swing arm is articulated on described off-axis section.
As preferred version, wherein said standard shaft section has one first plane of orientation and reaches one second plane of orientation that is formed with gun parallax with described the first plane of orientation, and described the first plane of orientation or the second plane of orientation wear described body with a bolting element and fix.
As preferred version, the end of wherein said off-axis section is provided with a profile groove.
As preferred version, wherein said bent axle has one first axostylus axostyle and is formed with one second axostylus axostyle of spacing distance with described the first axostylus axostyle, and described the first axostylus axostyle wears described Libra and weighted cam and fixes, and described the second axostylus axostyle is socketed on described eccentric wheel.
As preferred version, wherein said needle bar transmission mechanism also comprises a latch, the crankshaft end-face of described the second axostylus axostyle outer peripheral edges is provided with a jack, described eccentric wheel is provided with one first locating hole and reaches one second locating hole that is formed with gun parallax with described the first locating hole, and described the first locating hole or the second locating hole wear and fix corresponding to described jack and with described latch.
As preferred version, the end of wherein said the second axostylus axostyle is provided with a groove.
As preferred version, wherein said needle bar transmission mechanism also comprises a needle bar bearing, and described connecting rod connects described needle bar by described needle bar bearing.
But the Sewing machines of modulation needle bar provided by the present invention and take-up stroke utilizes the shareable attribute of main element, reduces significantly the purchase cost of equipment or machine; By the profile groove setting of eccentric shaft end face, eccentric shaft is carried out the rotation adjustment of eccentric direction; Utilization is provided with jack with the grafting after providing latch to wear eccentric wheel at crankshaft end-face, thereby can reach the effect of rapid adjustment conversion and stable bond; By the groove setting of crankshaft end-face, bent axle is carried out the rotation adjustment of eccentric direction.
Description of drawings
Fig. 1 is the combination schematic diagram of Sewing machines of the present invention;
Fig. 2 is the constitutional diagram of needle bar mechanism of the present invention and thread take-up mechanism;
Fig. 3 is the exploded view of thread take-up mechanism of the present invention;
Fig. 4 is the exploded view of needle bar of the present invention mechanism;
Fig. 5 is the schematic diagram of the first pattern needle bar displacement stroke of the present invention;
Fig. 6 is the schematic diagram of the first pattern Libra displacement stroke of the present invention;
Fig. 7 is the schematic diagram of the second pattern needle bar displacement stroke of the present invention;
Fig. 8 is the schematic diagram of the second pattern Libra displacement stroke of the present invention.
[main element symbol description]
Body-10; Base-11; Upper arm body-12; The first axis hole-121; The second axis hole-122;
Spindle drive-20; Rotating shaft-21; Weighted cam-22; The first through hole-221; The second through hole-222;
Drive mechanism of thread-taking-up mechanism-30; Libra-31; The first perforation-311; The second perforation-312; Cable-through hole-313; Eccentric shaft 32; Standard shaft section-321; The first plane of orientation-3211; The second plane of orientation-3212; Off-axis section-322; Profile groove-323; Swing arm-33;
Bent axle-40; The first axostylus axostyle 41; The second axostylus axostyle-42; Groove-421; Jack-43;
Needle bar transmission mechanism-50; Eccentric wheel-51; The first locating hole-511; The second locating hole-512; Latch-52;
Needle bar-53; Connecting rod-54; Needle bar bearing-55;
Move up and down stroke-L1; Move up and down stroke-L2; Move up and down stroke-L3; Move up and down stroke-L4.
The specific embodiment
Relevant detailed description of the present invention and technology contents coordinate description of drawings as follows, yet accompanying drawing only provides the use of reference with explanation, are not for restriction the present invention.
See also Fig. 1 to Fig. 4, but the invention provides the Sewing machines of the stroke of a kind of modulation needle bar and take-up, the Sewing machines of the present embodiment is a single needle sewing machine for covering chain stitch, and it mainly comprises a body 10, a spindle drive 20, a Drive mechanism of thread-taking-up mechanism 30, a bent axle 40 and a needle bar transmission mechanism 50.
Consult shown in Figure 3, Drive mechanism of thread-taking-up mechanism 30 comprises a Libra 31, an eccentric shaft 32 and a swing arm 33, Libra 31 is to be equipped on the outer side edges of weighted cam 22, and is provided with one first perforation 311,1 second perforation 312 and one cable-through hole 313 thereon, and this cable-through hole 313 provides wearing of needlework.Eccentric shaft 32 mainly consists of by a standard shaft section 321 and with 322 of off-axis sections that described standard shaft section 321 is formed with eccentric distance, standard shaft section 321 has one first plane of orientation 3211 and reaches one second plane of orientation 3212 that is formed with gun parallax with described the first plane of orientation 3211, this standard shaft section 321 is connected in the second axis hole 122 of described upper arm body 12, and optionally with the first plane of orientation 3211 or the second plane of orientation 3212 as fixed pan, and be locked in upper arm body 12 with bolting elements such as screws; Separately be provided with a profile groove 323 in off-axis section 322 ends, to adjust the use of eccentric directions as eccentric shaft 32.One end of swing arm 33 is sheathed to be articulated on the off-axis section 322 of eccentric shaft 32, and the other end of swing arm 33 wears in the second perforation 312 that is articulated in Libra 31.
Consult shown in Figure 4, bent axle 40 has one first axostylus axostyle 41 and reaches one second axostylus axostyle 42 that is formed with spacing distance with described the first axostylus axostyle 41, the axial line of the axial line of the first axostylus axostyle 41 and the second axostylus axostyle 42 is parallel each other, the first axostylus axostyle 41 wears in first perforation 311 and the second through hole 222 of weighted cam 22 of Libra 31, and is locked on weighted cam 22 with bolting elements such as screws; Be provided with a groove 421 in the end of the second axostylus axostyle 42, to adjust the use of eccentric direction as bent axle 40, separately bent axle 40 end faces in the second axostylus axostyle 42 outer peripheral edges are provided with a jack 43.
Needle bar transmission mechanism 50 comprises an eccentric wheel 51, a latch 52, a needle bar 53, a connecting rod 54 and a needle bar bearing 55, eccentric wheel 51 is socketed on the second axostylus axostyle 42 of bent axle 40, and be provided with one first locating hole 511 and be formed with one second locating hole 512 of gun parallax with the first locating hole 511 on eccentric wheel 51, latch 52 optionally penetrates and is fixed in jack 43 with the first locating hole 511 or the second locating hole 512.Needle bar 53 can be slidably connected to upper arm body 12 by axle sleeve; One end of connecting rod 54 is articulated on eccentric wheel 51, and the other end connects needle bar 53 by needle bar bearing 55.
See also Fig. 5 and shown in Figure 6, needle bar and Libra displacement stroke schematic diagram for the first pattern of the present invention, the present embodiment be in thick cloth needle bar and the take-up stroke used, wherein eccentric shaft 32 admittedly locks as setting the plane take the first plane of orientation 3211, and eccentric wheel 51 comes penetrate and be fixed in jack 43 for latch 52 with the first locating hole 511; When rotating shaft 21 is rotated transmission, utilize weighted cam 22 and bent axle 40 to drive Drive mechanism of thread-taking-up mechanism 30 and 50 starts of needle bar transmission mechanism, this moment, the stroke L1 that moves up and down of its needle bar 53 was generally 30.7mm, and the stroke L2 that moves up and down of cable-through hole 313 is generally 59.7mm.
See also Fig. 7 and shown in Figure 8, the needle bar of the second pattern of the present invention and Libra displacement stroke schematic diagram, the present embodiment is thick needle bar and the take-up stroke of using to special thick cloth, embed profile groove 323 with screwdriver (scheming not shown) during adjustment interior so that eccentric shaft 32 is rotated, change take the second plane of orientation 3212 of eccentric shaft 32 to come admittedly to be locked as setting the plane; In like manner also embed groove 421 with screwdriver (scheming not shown) interior so that bent axle 40 is rotated, the second locating hole 512 that changes with eccentric wheel 51 penetrate and be fixed in jack 43 for latch 52; When rotating shaft 21 is rotated transmission, utilize weighted cam 22 and bent axle 40 to drive Drive mechanism of thread-taking- up mechanism 30 and 50 starts of needle bar transmission mechanism, this moment, the stroke L3 that moves up and down of its needle bar 53 was generally 35mm, and the stroke L4 that moves up and down of cable-through hole 313 is generally 63mm.
The above is only preferred embodiment of the present invention, is not to limit the scope of the claims of the present invention, therefore such as use equivalence that specification of the present invention and accompanying drawing content do to change and modify etc., all should in like manner be included in scope of patent protection of the present invention.
Claims (9)
1. but the Sewing machines of a modulation needle bar and take-up stroke it is characterized in that, but the Sewing machines of described modulation needle bar and take-up stroke comprises:
One body, it offers an axis hole;
One spindle drive, the weighted cam that it comprises a rotating shaft and is socketed on described rotating shaft, and rotating shaft is connected to described body;
One Drive mechanism of thread-taking-up mechanism, it comprises the Libra that is equipped on described weighted cam side, be positioned an eccentric shaft, an end in described axis hole is articulated in the swing arm that described eccentric shaft and the other end are articulated in described Libra;
One bent axle, one end wear described Libra and are fixed on described weighted cam; And
One needle bar transmission mechanism, it comprises that positioning sleeve is connected to an eccentric wheel of the described bent axle other end, slips a needle bar, a described eccentric wheel of end pivot joint of described body and the connecting rod that the other end connects described needle bar.
2. but the Sewing machines of modulation needle bar and take-up stroke as claimed in claim 1, it is characterized in that, but the Sewing machines of described modulation needle bar and take-up stroke is a single needle sewing machine for covering chain stitch.
3. but the Sewing machines of modulation needle bar and take-up stroke as claimed in claim 1, it is characterized in that, described eccentric shaft comprises that a standard shaft section reaches an off-axis section that is formed with eccentric distance with described standard shaft section, and described standard shaft section is connected in the axis hole of described body, and described swing arm is articulated on described off-axis section.
4. but the Sewing machines of modulation needle bar as claimed in claim 3 and take-up stroke, it is characterized in that, described standard shaft section has one first plane of orientation and reaches one second plane of orientation that is formed with gun parallax with described the first plane of orientation, and described the first plane of orientation or the second plane of orientation wear described body with a bolting element and fix.
5. but the Sewing machines of modulation needle bar and take-up stroke as claimed in claim 3, is characterized in that, the end of described off-axis section is provided with a profile groove.
6. but the Sewing machines of modulation needle bar and take-up stroke as claimed in claim 1, it is characterized in that, described bent axle has one first axostylus axostyle and reaches one second axostylus axostyle that is formed with spacing distance with described the first axostylus axostyle, described the first axostylus axostyle wears described Libra and weighted cam and fixes, and described the second axostylus axostyle is socketed on described eccentric wheel.
7. but the Sewing machines of modulation needle bar and take-up stroke as claimed in claim 6, it is characterized in that, described needle bar transmission mechanism also comprises a latch, the crankshaft end-face of described the second axostylus axostyle outer peripheral edges is provided with a jack, described eccentric wheel is provided with one first locating hole and reaches one second locating hole that is formed with gun parallax with described the first locating hole, and described the first locating hole or the second locating hole wear and fix corresponding to described jack and with described latch.
8. but the Sewing machines of modulation needle bar and take-up stroke as claimed in claim 6, is characterized in that, the end of described the second axostylus axostyle is provided with a groove.
9. but the Sewing machines of modulation needle bar and take-up stroke as claimed in claim 6, is characterized in that, described needle bar transmission mechanism also comprises a needle bar bearing, and described connecting rod connects described needle bar by described needle bar bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110365132.0A CN103114390B (en) | 2011-11-17 | 2011-11-17 | Sewing machine with adjustable needle rod and take-up stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110365132.0A CN103114390B (en) | 2011-11-17 | 2011-11-17 | Sewing machine with adjustable needle rod and take-up stroke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103114390A true CN103114390A (en) | 2013-05-22 |
| CN103114390B CN103114390B (en) | 2015-03-11 |
Family
ID=48412810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110365132.0A Expired - Fee Related CN103114390B (en) | 2011-11-17 | 2011-11-17 | Sewing machine with adjustable needle rod and take-up stroke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103114390B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103695732A (en) * | 2013-11-26 | 2014-04-02 | 宁波瑞铭机械有限公司 | Connecting rod of sewing machine and preparation method thereof |
| CN103981645A (en) * | 2014-05-30 | 2014-08-13 | 新杰克缝纫机股份有限公司 | Overedger needle bar stroke adjusting mechanism and overedger |
| CN105133211A (en) * | 2015-10-08 | 2015-12-09 | 叶军忠 | Driving mechanism for thread selecting device in intelligent-alignment sweater sewing machine |
| CN106120191A (en) * | 2016-08-19 | 2016-11-16 | 浙江恒强针车集团有限公司 | Sewing machine self-lubricating oil storage linkage |
| CN107059267A (en) * | 2017-06-16 | 2017-08-18 | 杰克缝纫机股份有限公司 | A kind of simple take-up governor motion of sewing machine and sewing machine |
| CN107090673A (en) * | 2017-06-16 | 2017-08-25 | 杰克缝纫机股份有限公司 | A kind of simple take-up governor motion of sewing machine and sewing machine |
| CN112877928A (en) * | 2021-01-28 | 2021-06-01 | 星锐缝纫机(嘉兴)有限公司 | Sewing machine structure |
| CN113896049A (en) * | 2020-06-22 | 2022-01-07 | 东华大学 | Automatic thread take-up device |
Citations (6)
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| JPS59214487A (en) * | 1983-05-19 | 1984-12-04 | ブラザー工業株式会社 | Link balance mechanism of sewing machine |
| JPS62202524U (en) * | 1986-06-17 | 1987-12-24 | ||
| JPH02119892A (en) * | 1988-10-28 | 1990-05-07 | Juki Corp | Movement adjusting device for thread take-up lever |
| JPH09155087A (en) * | 1995-12-04 | 1997-06-17 | Brother Ind Ltd | Upper shaft mechanism for sewing machine |
| CN1368572A (en) * | 2001-01-29 | 2002-09-11 | 重机株式会社 | Needle-bar travel regulating device |
| CN101525821A (en) * | 2008-03-06 | 2009-09-09 | Juki株式会社 | Sewing machine |
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2011
- 2011-11-17 CN CN201110365132.0A patent/CN103114390B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59214487A (en) * | 1983-05-19 | 1984-12-04 | ブラザー工業株式会社 | Link balance mechanism of sewing machine |
| JPS62202524U (en) * | 1986-06-17 | 1987-12-24 | ||
| JPH02119892A (en) * | 1988-10-28 | 1990-05-07 | Juki Corp | Movement adjusting device for thread take-up lever |
| JPH09155087A (en) * | 1995-12-04 | 1997-06-17 | Brother Ind Ltd | Upper shaft mechanism for sewing machine |
| CN1368572A (en) * | 2001-01-29 | 2002-09-11 | 重机株式会社 | Needle-bar travel regulating device |
| CN101525821A (en) * | 2008-03-06 | 2009-09-09 | Juki株式会社 | Sewing machine |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103695732A (en) * | 2013-11-26 | 2014-04-02 | 宁波瑞铭机械有限公司 | Connecting rod of sewing machine and preparation method thereof |
| CN103695732B (en) * | 2013-11-26 | 2015-11-18 | 宁波瑞铭机械有限公司 | A kind of linking sewing machine and preparation method thereof |
| CN103981645A (en) * | 2014-05-30 | 2014-08-13 | 新杰克缝纫机股份有限公司 | Overedger needle bar stroke adjusting mechanism and overedger |
| CN105133211A (en) * | 2015-10-08 | 2015-12-09 | 叶军忠 | Driving mechanism for thread selecting device in intelligent-alignment sweater sewing machine |
| CN106120191A (en) * | 2016-08-19 | 2016-11-16 | 浙江恒强针车集团有限公司 | Sewing machine self-lubricating oil storage linkage |
| CN107059267A (en) * | 2017-06-16 | 2017-08-18 | 杰克缝纫机股份有限公司 | A kind of simple take-up governor motion of sewing machine and sewing machine |
| CN107090673A (en) * | 2017-06-16 | 2017-08-25 | 杰克缝纫机股份有限公司 | A kind of simple take-up governor motion of sewing machine and sewing machine |
| CN107059267B (en) * | 2017-06-16 | 2019-07-12 | 杰克缝纫机股份有限公司 | A kind of simple take-up regulating mechanism of sewing machine and sewing machine |
| CN107090673B (en) * | 2017-06-16 | 2019-09-13 | 杰克缝纫机股份有限公司 | A kind of simple take-up regulating mechanism of sewing machine and sewing machine |
| CN113896049A (en) * | 2020-06-22 | 2022-01-07 | 东华大学 | Automatic thread take-up device |
| CN112877928A (en) * | 2021-01-28 | 2021-06-01 | 星锐缝纫机(嘉兴)有限公司 | Sewing machine structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103114390B (en) | 2015-03-11 |
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Granted publication date: 20150311 Termination date: 20181117 |