CN104264383A - Needle bar mechanism of overedger - Google Patents
Needle bar mechanism of overedger Download PDFInfo
- Publication number
- CN104264383A CN104264383A CN201410498233.9A CN201410498233A CN104264383A CN 104264383 A CN104264383 A CN 104264383A CN 201410498233 A CN201410498233 A CN 201410498233A CN 104264383 A CN104264383 A CN 104264383A
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- China
- Prior art keywords
- needle bar
- shank
- crank
- driven shaft
- axis
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Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B55/00—Needle holders; Needle bars
- D05B55/14—Needle-bar drives
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention provides a needle bar mechanism of an overedger. The needle bar mechanism comprises a driven shaft; the driven shaft is driven by a driving system to rotating back and forth about an axis; a needle bar crank fixedly sleeves the driven shaft; a crank pin is mounted on one end, far away from the driven shaft, of the needle bar crank; the crank pin is inserted in the guide groove of a needle bar retainer and slides in the guide groove; the needle bar retainer is fixedly connected with a needle bar; the axis of the needle bar is perpendicular to that of the driven shaft; at least one needle bar sleeve sleeves the needle bar; the needle bar slides in the needle bar sleeve along the axis; the needle bar sleeve is fixedly connected with a housing. The needle bar mechanism of the overedger has the advantages that a novel slider needle bar mechanism is adopted so that the stroke of the needle bar is more accurate, the machining requirement on each part of the needle bar mechanism is low so that the cost of the whole needle bar mechanism is reduced under the premise of guaranteeing the accuracy of the travel bar stroke, and meanwhile, the structure of two needle bar sleeves is adopted so that the abrasion of the needle bar caused by the high-speed running of the machine is reduced and the machining precision of the needle bar is reduced.
Description
Technical field
The present invention relates to a kind of overlock-seaming machine needle rod mechanism.
Background technology
Overlock machine is one of main sewing device of garment enterprise, is used for trimming, sewing up fabric edge, wraps up, decoherence to prevent the yarn of fabric with specific stitching to fabric edge in clothes processing.If overlock machine in use rotating speed too high very easily generation shank stuck phenomenon, therefore the required precision in the manufacture process of overlock machine of the needle bar mechanism of overlock machine is very high.
The needle bar mechanism of existing overlock machine has two kinds, slide bar type and sleeve type.Two kinds are divided in slide bar type, a kind of needle bar mechanism is sliding block type structure, in whole needle bar mechanism, only has a shank sleeve, the distance of the guiding constraint effect played due to shank sleeve is shorter, cause when overlock machine high speed rotating, a shank sleeve subjects larger restraining force, if the machining accuracy of shank and shank sleeve slightly deviation, very easily aggravate the wearing and tearing of shank, and then require that the machining accuracy of shank is higher, cause shank comparatively difficult in processing, the cost of whole needle bar mechanism is higher.Another kind of needle bar mechanism is link rod structure, and have two shank sleeves to play guiding constraint effect, lower to the processing request of shank, its wearing and tearing are less, but because of the cause of planar linkage formula mechanism, causes the stroke accuracy of shank not high.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of overlock-seaming machine needle rod mechanism, high for solving needle bar mechanism requirement on machining accuracy of the prior art, the coarse problem of needle bar stroke.
For achieving the above object and other relevant objects, the invention provides a kind of overlock-seaming machine needle rod mechanism, it comprises driven shaft, driven shaft under the drive of drive system around axis reciprocating rotation, driven shaft is fixed with needle bar crank, needle bar crank is equipped with crank-pin away from one end of driven shaft, crank-pin inserts in the gathering sill of shank retainer, crank-pin slides in gathering sill, shank retainer is fixedly connected with shank, the axis of shank and the axes normal of driven shaft, on shank, cover has at least one shank sleeve, shank in shank sleeve along axial sliding movement, shank sleeve is fixedly connected with casing.
Preferably, the axis of crank-pin and the axis being parallel of driven shaft, gathering sill extends along the direction vertical with shank axis, the opening surface of gathering sill is to needle bar crank, the middle part of crank-pin is provided with inserting paragraph, and the outer surface of inserting paragraph matches with the inner surface of gathering sill, and the two ends of crank-pin are provided with the flange extended radially outward, shank retainer between two flanges, flange restriction shank retainer along crank pin to relative motion.
Preferably, the axis of crank-pin and the axis being parallel of driven shaft, gathering sill extends along the direction vertical with shank axis, the opening needle bar crank dorsad of gathering sill, needle bar crank is provided with two and extends blocking arm, the two ends of crank-pin are inserted two respectively and are extended in blocking arm, and gathering sill extends between blocking arm at two.
Further preferably, this needle bar mechanism also comprises slide block guide bracket, and slide block guide bracket and casing are fixed, and slide block guide bracket is provided with chute, and the axis of chute and the axis being parallel of shank, shank retainer also overlaps slide block, and slide block slides in chute.
Further preferred, the quantity of shank sleeve is two, lays respectively at above and below shank retainer.
Further preferred, drive system comprises main shaft, the axis of main shaft and the axis being parallel of driven shaft, main shaft is connected with driven shaft fixed mount by driving crank, one end eccentric bushing of driving crank is on main shaft, the other end and the driven shaft fixed mount of driving crank are hinged, and the turning cylinder of driving crank and the axis being parallel of main shaft, driven shaft fixed mount is fixedly connected with driven shaft.
Further preferred, on driven shaft, cover has driven shaft sleeve, and driven shaft sleeve is fixedly connected with casing.
As mentioned above, overlock-seaming machine needle rod mechanism of the present invention, has following beneficial effect:
This overlock-seaming machine needle rod mechanism, by adopting novel slide block type needle bar mechanism, makes the stroke of shank more accurate, and low to the processing request of each parts of needle bar mechanism, reduces the cost of whole needle bar mechanism under the prerequisite that ensure that needle bar stroke precision; Meanwhile, wearing and tearing to shank when adopting the structure of two shank sleeves to decrease machine at high speeds running, reduce the machining accuracy of shank.
Accompanying drawing explanation
Fig. 1 is shown as the structural representation of overlock-seaming machine needle rod mechanism of the present invention.
Fig. 2 is shown as the partial exploded view of a kind of detailed description of the invention of the overlock-seaming machine needle rod mechanism shown in Fig. 1.
Fig. 3 is shown as the structural representation of the another kind of detailed description of the invention of the overlock-seaming machine needle rod mechanism shown in Fig. 1.
Fig. 4 is shown as the combination schematic diagram of the shank retainer of the overlock-seaming machine needle rod mechanism shown in Fig. 3, slide block guide bracket and crank-pin.
Element numbers explanation
1 driven shaft
2 needle bar cranks
21 extend blocking arm
3 crank-pins
31 inserting paragraphs
32 flanges
4 shank retainers
41 gathering sills
5 shanks
6 shank sleeves
7 main shafts
8 driving cranks
9 driven shaft fixed mounts
10 driven shaft sleeve
11 slide blocks
12 slide block guide brackets
121 chutes
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this description can understand other advantages of the present invention and effect easily.
Refer to Fig. 1 to Fig. 4.Notice, structure, ratio, size etc. that this description institute accompanying drawings illustrates, content all only in order to coordinate description to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, still all should drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, quote in this description as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
As shown in Figures 1 to 4, the invention provides a kind of overlock-seaming machine needle rod mechanism, it comprises driven shaft 1, driven shaft 1 under the drive of drive system around axis reciprocating rotation, driven shaft 1 is fixed with needle bar crank 2, needle bar crank 2 is equipped with crank-pin 3 away from one end of driven shaft 1, crank-pin 3 inserts in the gathering sill 41 of shank retainer 4, crank-pin 3 slides in gathering sill 41, shank retainer 4 is fixedly connected with shank 5, the axis of shank 5 and the axes normal of driven shaft 1, on shank 5, cover has at least one shank sleeve 6, shank 5 in shank sleeve 6 along axial sliding movement, shank sleeve 6 is fixedly connected with casing.
Driven shaft 1 is around axis reciprocating rotation under the drive of drive system, and driven shaft 1 drives needle bar crank 2, crank-pin 3 reciprocating rotation together, and crank-pin 3 slides in gathering sill 41, thus makes shank retainer 4 together with the axial sliding movement of shank 5 along shank 5.Shank sleeve 6 plays the effect that restriction shank 5 can only move up and down along the axis of shank 5.The reciprocating rotation of driven shaft 1 is converted into moving up and down of shank 5 by said mechanism, this slider type needle linkage, compared with existing shank four-bar mechanism, the stroke of slider type needle linkage is more accurate, be adapted to high speed situation, and low to the processing request of each parts of needle bar mechanism, under the prerequisite that ensure that needle bar stroke precision, finally reduce the cost of whole needle bar mechanism.
As shown in Figure 2, crank-pin 3 is as follows with a kind of detailed description of the invention of the syndeton of shank retainer 4.The axis of crank-pin 3 and the axis being parallel of driven shaft 1, gathering sill 41 extends along the direction with shank 5 axes normal, the opening surface of gathering sill 41 is to needle bar crank 2, the middle part of crank-pin 3 is provided with inserting paragraph 31, the outer surface of inserting paragraph 31 matches with the inner surface of gathering sill 41, the two ends of crank-pin 3 are provided with the flange 32 extended radially outward, and shank retainer 4 is between two flanges 32, and flange 32 limits the relative motion of shank retainer 4 along crank-pin 3 axis.The flange 32 at crank-pin 3 two ends, shank retainer 4 is stuck in the middle of two flanges 32, make shank retainer 4 can not along the axis direction relative movement of crank-pin 3, and the coordinating of inserting paragraph 31 and gathering sill 41, crank-pin 3 can accurately be slided along gathering sill 41, said structure can limit the slip of crank-pin 3 relative to shank retainer 4 better, thus makes the stroke of whole needle bar mechanism more accurate.
As shown in Figure 3 to Figure 4, crank-pin 3 is as follows with the another kind of detailed description of the invention of the syndeton of shank retainer 4.The axis of crank-pin 3 and the axis being parallel of driven shaft 1, gathering sill 41 extends along the direction with shank 5 axes normal, the opening needle bar crank 2 dorsad of gathering sill 41, needle bar crank 2 is provided with two and extends blocking arm 21, the two ends of crank-pin 3 are inserted two respectively and are extended in blocking arm 21, and gathering sill 41 extends between blocking arm 21 at two.Two of needle bar crank 2 extend blocking arms 21, are clipped in the middle by shank retainer 4, make shank retainer 4 can not along the axis direction relative movement of crank-pin 3.
Wherein, this needle bar mechanism also can comprise slide block guide bracket 12, and slide block guide bracket 12 and casing are fixed, and slide block guide bracket 12 is provided with chute 121, the axis of chute 121 and the axis being parallel of shank 5, and shank retainer 4 also overlaps slide block 11, and slide block 11 slides in chute 121.When needle bar crank 2 drives crank-pin 3 reciprocally swinging, crank-pin 3 slides along gathering sill 41, drives shank retainer 4 and shank 5 to slide up and down simultaneously.By the setting of the chute 121 of slide block guide bracket 12, when the sliding up and down of shank retainer 4 and shank 5, shank retainer 4 and shank 5 are not merely by shank sleeve 6 limit slippage track, also by chute 121 limit slippage track, more steady when making shank retainer 4 and shank 5 slide up and down like this, thus make the stroke of whole needle bar mechanism more accurate.
The quantity of shank sleeve 6 is two, lays respectively at above and below shank retainer 4.All overlap in the top and bottom of shank 5 and have shank sleeve 6, sliding up and down of shank 5 can be limited better.In machine operation procedure, adopt two shank sleeves 6 as the guiding of shank 5, can reduce the wearing and tearing of shank 5, simultaneously due to the change of shank 5 shape, the machining accuracy of shank 5 is reduced, and shorter during machining work consuming, cost is lower.
Drive the drive system of driven shaft 1 can be realized by following structure.This drive system comprises main shaft 7, the axis of main shaft 7 and the axis being parallel of driven shaft 1, main shaft 7 is connected with driven shaft fixed mount 9 by driving crank 8, one end eccentric bushing of driving crank 8 is on main shaft 7, the other end and the driven shaft fixed mount 9 of driving crank 8 are hinged, the turning cylinder of driving crank 8 and the axis being parallel of main shaft 7, driven shaft fixed mount 9 is fixedly connected with driven shaft 1.
Because main shaft 7 is eccentric shaft, therefore when main shaft 7 rotates, drive driving crank 8 reciprocating motion, driving crank 8 drives driven shaft fixed mount 9, driven shaft 1 reciprocating rotation together, and the continuous rotation of main shaft 7 is converted into the reciprocating rotation of driven shaft 1 by this drive system.
Separately, on driven shaft 1, cover has driven shaft sleeve 10, and driven shaft sleeve 10 is fixedly connected with casing.
In sum, overlock-seaming machine needle rod mechanism of the present invention, by adopting novel slide block type needle bar mechanism, makes the stroke of shank more accurate, and low to the processing request of each parts of needle bar mechanism, under the prerequisite that ensure that needle bar stroke precision, reduce the cost of whole needle bar mechanism; Meanwhile, wearing and tearing to shank when adopting the structure of two shank sleeves to decrease machine at high speeds running, reduce the machining accuracy of shank.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (7)
1. an overlock-seaming machine needle rod mechanism, it is characterized in that: it comprises driven shaft, described driven shaft under the drive of drive system around axis reciprocating rotation, described driven shaft is fixed with needle bar crank, described needle bar crank is equipped with crank-pin away from one end of described driven shaft, described crank-pin inserts in the gathering sill of shank retainer, described crank-pin slides in described gathering sill, described shank retainer is fixedly connected with shank, the axis of described shank and the axes normal of described driven shaft, on described shank, cover has at least one shank sleeve, described shank in described shank sleeve along axial sliding movement, described shank sleeve is fixedly connected with casing.
2. overlock-seaming machine needle rod mechanism according to claim 1, it is characterized in that: the axis of described crank-pin and the axis being parallel of described driven shaft, described gathering sill extends along the direction vertical with described shank axis, the opening surface of described gathering sill is to described needle bar crank, the middle part of described crank-pin is provided with inserting paragraph, the outer surface of described inserting paragraph matches with the inner surface of described gathering sill, the two ends of described crank-pin are provided with the flange extended radially outward, described shank retainer is between described two flanges, described flange limit described shank retainer along described crank pin to relative motion.
3. overlock-seaming machine needle rod mechanism according to claim 1, it is characterized in that: the axis of described crank-pin and the axis being parallel of described driven shaft, described gathering sill extends along the direction vertical with described shank axis, the opening described needle bar crank dorsad of described gathering sill, described needle bar crank is provided with two and extends blocking arm, the two ends of described crank-pin are inserted two respectively and are extended in blocking arm, and described gathering sill extends between blocking arm at described two.
4. overlock-seaming machine needle rod mechanism according to claim 3, it is characterized in that: this needle bar mechanism also comprises slide block guide bracket, described slide block guide bracket and casing are fixed, described slide block guide bracket is provided with chute, the axis of described chute and the axis being parallel of described shank, described shank retainer also overlaps and has slide block, and described slide block slides in described chute.
5. the overlock-seaming machine needle rod mechanism according to any one of Claims 1-4, is characterized in that: the quantity of described shank sleeve is two, lays respectively at above and below described shank retainer.
6. the overlock-seaming machine needle rod mechanism according to any one of Claims 1-4, it is characterized in that: described drive system comprises main shaft, the axis of described main shaft and the axis being parallel of described driven shaft, described main shaft is connected with driven shaft fixed mount by driving crank, one end eccentric bushing of described driving crank is on described main shaft, the other end and the described driven shaft fixed mount of described driving crank are hinged, the turning cylinder of described driving crank and the axis being parallel of described main shaft, described driven shaft fixed mount is fixedly connected with described driven shaft.
7. the overlock-seaming machine needle rod mechanism according to any one of Claims 1-4, is characterized in that: on described driven shaft, cover has driven shaft sleeve, and described driven shaft sleeve is fixedly connected with described casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410498233.9A CN104264383B (en) | 2014-09-25 | 2014-09-25 | Overlock-seaming machine needle rod mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410498233.9A CN104264383B (en) | 2014-09-25 | 2014-09-25 | Overlock-seaming machine needle rod mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104264383A true CN104264383A (en) | 2015-01-07 |
| CN104264383B CN104264383B (en) | 2016-05-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410498233.9A Active CN104264383B (en) | 2014-09-25 | 2014-09-25 | Overlock-seaming machine needle rod mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104264383B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107653591A (en) * | 2017-11-14 | 2018-02-02 | 常州武鼎地毯机械有限公司 | Dynamic balancing high-speed main spindle device and the rug-overtufting machine with the main shaft device |
| CN109706643A (en) * | 2019-01-24 | 2019-05-03 | 李永坚 | Needle bar part connection component |
| CN110438677A (en) * | 2019-09-10 | 2019-11-12 | 上海博岙机电制造有限公司 | The shank linkage carriage of crosspointer longitudinal direction colour changing computer embroidery machine |
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| JPS6088217A (en) * | 1983-10-20 | 1985-05-18 | Brother Ind Ltd | Supporting device for reciprocating shaft |
| JPH06105974A (en) * | 1992-09-24 | 1994-04-19 | Brother Ind Ltd | Sewing machine |
| JP2003000980A (en) * | 2001-06-21 | 2003-01-07 | Juki Corp | Needlebar drive unit of sewing machine |
| CN202055018U (en) * | 2011-04-29 | 2011-11-30 | 新杰克缝纫机股份有限公司 | Slide bar type needle bar transmission device of overlock machine |
| CN202298106U (en) * | 2011-08-18 | 2012-07-04 | 俞竟贤 | Packing machine |
| CN204097717U (en) * | 2014-09-25 | 2015-01-14 | 杰克缝纫机股份有限公司 | Overlock-seaming machine needle rod mechanism |
-
2014
- 2014-09-25 CN CN201410498233.9A patent/CN104264383B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6088217A (en) * | 1983-10-20 | 1985-05-18 | Brother Ind Ltd | Supporting device for reciprocating shaft |
| JPH06105974A (en) * | 1992-09-24 | 1994-04-19 | Brother Ind Ltd | Sewing machine |
| JP2003000980A (en) * | 2001-06-21 | 2003-01-07 | Juki Corp | Needlebar drive unit of sewing machine |
| CN202055018U (en) * | 2011-04-29 | 2011-11-30 | 新杰克缝纫机股份有限公司 | Slide bar type needle bar transmission device of overlock machine |
| CN202298106U (en) * | 2011-08-18 | 2012-07-04 | 俞竟贤 | Packing machine |
| CN204097717U (en) * | 2014-09-25 | 2015-01-14 | 杰克缝纫机股份有限公司 | Overlock-seaming machine needle rod mechanism |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107653591A (en) * | 2017-11-14 | 2018-02-02 | 常州武鼎地毯机械有限公司 | Dynamic balancing high-speed main spindle device and the rug-overtufting machine with the main shaft device |
| CN109706643A (en) * | 2019-01-24 | 2019-05-03 | 李永坚 | Needle bar part connection component |
| CN109706643B (en) * | 2019-01-24 | 2021-08-31 | 李永坚 | Sewing machine needle bar part connecting assembly |
| CN110438677A (en) * | 2019-09-10 | 2019-11-12 | 上海博岙机电制造有限公司 | The shank linkage carriage of crosspointer longitudinal direction colour changing computer embroidery machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104264383B (en) | 2016-05-18 |
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Address after: 318010 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. |