CN102433694B - Transmission mechanism of three-needle lockstitch sewing machine - Google Patents
Transmission mechanism of three-needle lockstitch sewing machine Download PDFInfo
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- CN102433694B CN102433694B CN 201110272828 CN201110272828A CN102433694B CN 102433694 B CN102433694 B CN 102433694B CN 201110272828 CN201110272828 CN 201110272828 CN 201110272828 A CN201110272828 A CN 201110272828A CN 102433694 B CN102433694 B CN 102433694B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 39
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- 238000009958 sewing Methods 0.000 title abstract description 23
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- 230000001360 synchronised effect Effects 0.000 abstract description 4
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- 230000015572 biosynthetic process Effects 0.000 description 2
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Abstract
The invention provides a transmission mechanism of a three-needle lockstitch sewing machine, which belongs to the technical field of lockstitch sewing machines and is used for solving the problems of wear, looseness and easiness in slipping of a synchronous belt of the conventional three-needle lockstitch sewing machine. The transmission mechanism of the three-needle lockstitch sewing machine comprises a transmission shaft, a left shuttle frame and a right shuttle frame, wherein the left shuttle frame is provided with a left rotating shuttle; the right shuttle frame is provided with a right rotating shuttle; the left shuttle frame and the right shuttle frame are provided with a worm and gear mechanism for driving the left rotating shuttle and the right rotating shuttle to rotate respectively; the transmission shaft is connected with the worm and gear mechanism, and is used for driving the two worm and gear mechanisms to rotate simultaneously; one side between the left shuttle frame and the right shuttle frame is provided with a middle shuttle frame; the middle shuttle frame is provided with a middle rotating shuttle; and a linkage device for driving the middle rotating shuttle to rotate through a gear set synchronously is arranged between the left rotating shuttle and the right rotating shuttle. According to the invention, the engaging transmission wear among gears is smaller, slippage is prevented, and the sewing effect of the sewing machine is enhanced.
Description
Technical field
The invention belongs to lock-type chain stitch flat seam machine technical field, relate to a kind of transmission mechanism of three-needle lock stitch seam plaining machine.
Background technology
Sewing machine for covering chain stitch mainly is with a sewing thread, forms a kind of stitching, the machine that makes one or more layers sewing interweave or unite by a seam at sewing; Usually make two kinds in thin material and thick material and make purposes, sewing machine for covering chain stitch can make the posts such as cotton, fiber crops, silk, hair, artificial fibre or make, the goods such as leather, plastics, paper; The shuttle that bottom line is housed in flat seam machine wears among formed line one ring of eedle line, has formed lock-type chain stitch.
In recent years, the flat seam machine that occurs a kind of single needle or crosspointer lock-type chain stitch in the existing market, such as China Patent No. be: the little pitch structure of a kind of double needle lockstitch machine that " 200720003863.X " provides, its concrete structure comprises left shuttle frame and the right shuttle frame that staggers before and after being fixed on the Sewing machines, and be separately fixed at rotating shuttle on the left and right shuttle frame, after being installed in needle holder, two pieces of eedles are fixed on the shank.When carrying out sewing work, utilize the connecting rod take-up, the rotating shuttle that staggers in front and back colludes respectively line, after the blanking, forms the trivial formula stitching of crosspointer, sewing is interweaved or is stitched together.Use this device can satisfy general sewing requirement, but because the develop rapidly of clothes industry, the trivial formula flat seam machine of two pins has not reached market for the more and more higher designing requirement of ornamental seam.
For above-mentioned this situation, a kind of flat seam machine of three pin lock-type chain stitchs appears in present stage, such as China Patent No. be: " 200710091205.5 " disclosed a kind of three-needle lock stitch seam plaining machine, the side of its concrete structure between left-handed shuttle and dextrorotation shuttle is provided with rotating shuttle in, drives simultaneously three's rotary work by a Timing Belt between left-handed shuttle, dextrorotation shuttle and middle rotating shuttle three.When carrying out sewing work, the connecting rod take-up, after motion is input to lower shaft, lower shaft drives left-handed shuttle rotation by helical gear, left-handed shuttle drives dextrorotation shuttle and the rotation of middle rotating shuttle by Timing Belt, finish after the rotation of three rotating shuttles and collude synchronously line process, when shank drives clamping and the needle holder of three pieces of eedles and move downward, form three pin lock-type chain stitchs.This flat seam machine utilizes the rotating shuttle of three synchronous rotaries to collude synchronously line, and three pin lock-type chain stitchs of formation make sewing thread that sewing firmly is stitched together, and the requirement of present market to ornamental seam that be content with very little.But be to finish being in transmission connection between left-handed shuttle, dextrorotation shuttle and the middle rotating shuttle three by a Timing Belt in above-mentioned flat seam machine, when flat seam machine service life is long, the Timing Belt that is connected between left-handed shuttle, dextrorotation shuttle and the middle rotating shuttle can cause the Timing Belt wearing and tearing lax because of the material of self service life, Timing Belt skids easily, and effect is made in impact; If the rotating shuttle rotating speed is too high, cause easily Timing Belt derailing transmission failure, can be to the machine cause danger that works.
Summary of the invention
The objective of the invention is for existing deficiency, provide a kind of and can avoid transmission slip between left-handed shuttle, dextrorotation shuttle and the middle rotating shuttle three, the transmission mechanism of the three-needle lock stitch seam plaining machine of effect is made in impact.
Purpose of the present invention can realize by following technical proposal: a kind of transmission mechanism of three-needle lock stitch seam plaining machine, comprise power transmission shaft, left shuttle frame and right shuttle frame, be provided with a left-handed shuttle at left shuttle frame, be provided with a dextrorotation shuttle at right shuttle frame, be respectively equipped with at left shuttle frame and right shuttle frame that a worm-and-wheel gear drives left-handed shuttle and the dextrorotation shuttle rotates, above-mentioned power transmission shaft is connected with worm-and-wheel gear and drives simultaneously two worm-and-wheel gears and rotates, it is characterized in that, side between left shuttle frame and right shuttle frame is provided with shuttle frame in, be provided with rotating shuttle at middle shuttle frame, between left-handed shuttle and dextrorotation shuttle, be provided with the linkage of rotating shuttle rotation in the synchronously drive of a gear train.
The transmission mechanism of this three-needle lock stitch seam plaining machine can drive left-handed shuttle, dextrorotation shuttle and the rotation of middle rotating shuttle synchronously by a linkage, three shuttles revolve to be finished shuttle by the gear train synchronous rotary in the linkage and revolves and collude synchronously line, the three pin lock-type chain stitchs that form make sewing thread that sewing firmly is stitched together, being in transmission connection between the gear train is difficult for skidding, stable drive.
In the transmission mechanism of above-mentioned three-needle lock stitch seam plaining machine, described linkage comprises a gap bridge tooth, tooth and be arranged on driving cog on the worm screw links, this driving cog is meshed with the gap bridge tooth, this gap bridge tooth is meshed with the interlock tooth, described gap bridge tooth is rotatably connected on the support, described interlock tooth is arranged on the middle shuttle frame, and the turning cylinder on the middle rotating shuttle is connected mutually with the interlock tooth.Power transmission shaft drives the driving cog that is arranged on the worm screw by a worm-and-wheel gear and rotates, this driving cog is meshed with the gap bridge tooth, driving the gap bridge tooth rotates, this gap bridge tooth is meshed with the interlock tooth, the moving interlock of gap bridge cingulum tooth rotates, turning cylinder on the middle rotating shuttle is connected mutually with the interlock tooth, and rotating shuttle rotated during the interlock cingulum was moving.
In the transmission mechanism of above-mentioned three-needle lock stitch seam plaining machine, offer a connecting hole on the described interlock tooth, the turning cylinder of above-mentioned middle rotating shuttle is plugged on the connecting hole and circumferentially is fixed in the connecting hole.Perisporium at the interlock tooth offers a fixing hole that is connected with connecting hole, and the center line of fixing hole is perpendicular to the center line of connecting hole, and turning cylinder of rotating shuttle wears in the fixing hole by bolt turning cylinder is fixed in the connecting hole in this.
In the transmission mechanism of above-mentioned three-needle lock stitch seam plaining machine, described worm-and-wheel gear comprise worm gear and with the joining worm screw of worm gear, described worm gear is provided with helical teeth one, is provided with the helical teeth two that is meshed with helical teeth one worm screw.
In the transmission mechanism of above-mentioned three-needle lock stitch seam plaining machine, described worm screw is a hollow bushing, and the turning cylinder of above-mentioned left-handed shuttle or dextrorotation shuttle can be pegged graft in the hollow bushing and circumferentially is fixed in the hollow bushing.Perisporium worm screw offers a fixing hole that is connected with sleeve pipe hollow, and the center line of fixing hole is perpendicular to the center line of sleeve pipe, and the turning cylinder of this rotating shuttle wears in the fixing hole by bolt turning cylinder is fixed in the sleeve pipe.
In the transmission mechanism of above-mentioned three-needle lock stitch seam plaining machine, the helical teeth two on the worm screw of described left shuttle frame and driving cog respectively coaxial line are positioned on the periphery wall of hollow bushing.The purpose that arranges like this be for the structural configuration of the helical teeth two on the worm screw and driving cog through gathering, and can rotate synchronously.
Compared with prior art, the transmission mechanism of this three-needle lock stitch seam plaining machine, between left-handed shuttle and dextrorotation shuttle, be provided with the linkage of rotating shuttle rotation in the synchronously drive of a gear train, this linkage meshes left-handed shuttle, dextrorotation shuttle and middle rotating shuttle transmission by a gap bridge tooth, interlock tooth and driving cog, the engaged transmission wearing and tearing are less between each gear, be difficult for skidding, improve the effect of making of flat seam machine; Even if under the rotating shuttle high speed rotating, can not cause transmission failure between each gear yet, can be to the machine cause danger that works.
Description of drawings
Fig. 1 is the perspective view of the transmission mechanism of this three-needle lock stitch seam plaining machine.
Among the figure, 1, power transmission shaft; 2, left shuttle frame; 3, right shuttle frame; 4, left-handed shuttle; 5, dextrorotation shuttle; 6, middle shuttle frame; 7, middle rotating shuttle; 8, gap bridge tooth; 9, interlock tooth; 10, driving cog; 11, worm gear; 12, worm screw; 13, helical teeth one; 14, helical teeth two.
The specific embodiment
Below be specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
As shown in Figure 1, the transmission mechanism of this three-needle lock stitch seam plaining machine is mainly by power transmission shaft 1, left shuttle frame 2 and right shuttle frame 3 form, be provided with a left-handed shuttle 4 at left shuttle frame 2, be provided with a dextrorotation shuttle 5 at right shuttle frame 3, be respectively equipped with a worm and gear at left shuttle frame 2 and right shuttle frame 3, this power transmission shaft 1 is located in respectively in the worm gear 11 of the worm gear 11 of left shuttle frame 2 and right shuttle frame 3, be provided with helical teeth 1 at worm gear 11, be provided with the helical teeth 2 14 that is meshed with helical teeth 1 worm screw 12, worm gear 11 drives worm screw 12 rotations by the engagement of helical teeth 1 and helical teeth 2 14, the worm screw 12 that is arranged in left shuttle frame 2 and the right shuttle frame 3 is a hollow bushing, also circumferentially be fixed on the hollow bushing in the turning cylinder grafting hollow bushing of left-handed shuttle 2 or dextrorotation shuttle 3, this turning cylinder with the fixed structure of hollow bushing is: the perisporium worm screw 11 offers a fixing hole that is connected with sleeve pipe hollow, the center line of fixing hole is perpendicular to the center line of sleeve pipe, and the turning cylinder of this rotating shuttle wears in the fixing hole by bolt turning cylinder is fixed in the sleeve pipe.
Side between left shuttle frame 2 and right shuttle frame 3 is provided with shuttle frame 6 in, is provided with rotating shuttle 7 at middle shuttle frame 6, is provided with the linkage of rotating shuttle 7 rotations in the synchronously drive of a gear train between left-handed shuttle 4 and dextrorotation shuttle 5; The concrete structure of this linkage comprises a gap bridge tooth 8, interlock tooth 9 and is arranged on driving cog 10 on the worm screw 12, this driving cog 10 and helical teeth 2 14 respectively coaxial line are positioned on the periphery wall of hollow bushing, this driving cog 10 is meshed with gap bridge tooth 8, this gap bridge tooth 8 is meshed with interlock tooth 9, described gap bridge tooth 8 is rotatably connected on the support, described interlock tooth 9 is arranged on the middle shuttle frame 6, and the turning cylinder on the middle rotating shuttle 6 is connected mutually with interlock tooth 9; Turning cylinder with the syndeton of interlock tooth 9 is: the perisporium at interlock tooth 9 offers a fixing hole that is connected with connecting hole, the center line of fixing hole is perpendicular to the center line of connecting hole, and turning cylinder of rotating shuttle 6 wears in the fixing hole by bolt turning cylinder is fixed in the connecting hole in this.
The course of work of the transmission mechanism of this three-needle lock stitch seam plaining machine is: power transmission shaft 1 is located in respectively in the worm gear 11 of the worm gear 11 of left shuttle frame 2 and right shuttle frame 3, power transmission shaft 1 drives the worm gear 11 of left shuttle frame 2 and the worm gear 11 of right shuttle frame 3 rotates simultaneously, be provided with helical teeth 1 at worm gear 11, be provided with the helical teeth 2 14 that is meshed with helical teeth 1 worm screw 12, worm gear 11 drives worm screw 12 rotations by the engagement of helical teeth 1 and helical teeth 2 14, these two worm screws 12 are a hollow bushing, also circumferentially be fixed on the hollow bushing in the turning cylinder grafting hollow bushing of left-handed shuttle 4 or dextrorotation shuttle 5, this worm screw 12 drives left-handed shuttle 4 or dextrorotation shuttle 5 rotates simultaneously, the periphery wall of a worm screw 12 be provided with one with the driving cog 10 of helical teeth 2 14 coaxial lines, this driving cog 10 is meshed with gap bridge tooth 8, this gap bridge tooth 8 is meshed with interlock tooth 9, turning cylinder on the middle rotating shuttle 7 is connected mutually with interlock tooth 9, driving cog 10 drives gap bridge tooth 8 and rotates, gap bridge tooth 8 drives interlock tooth 9 and rotates, and rotating shuttle 7 rotated during interlock tooth 9 drove; Left-handed like this shuttle 4, dextrorotation shuttle 5 and middle rotating shuttle 7 just can synchronous rotary be finished shuttle and are revolved and collude synchronously line, and three pin lock-type chain stitchs of formation make sewing thread that sewing firmly is stitched together.
Specific embodiment described herein only is to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (2)
1. the transmission mechanism of a three-needle lock stitch seam plaining machine, comprise power transmission shaft (1), left shuttle frame (2) and right shuttle frame (3), be provided with a left-handed shuttle (4) at left shuttle frame (2), be provided with a dextrorotation shuttle (5) at right shuttle frame (3), be respectively equipped with at left shuttle frame (2) and right shuttle frame (3) that a worm-and-wheel gear drives left-handed shuttle (4) and dextrorotation shuttle (5) rotates, above-mentioned power transmission shaft (1) is connected with worm-and-wheel gear and drives simultaneously two worm-and-wheel gears and rotates, it is characterized in that, side between left shuttle frame (2) and right shuttle frame (3) is provided with shuttle frame (6) in, be provided with rotating shuttle in (7) at middle shuttle frame (6), between left-handed shuttle (4) and dextrorotation shuttle (5), be provided with the linkage of rotating shuttle (7) rotation in the synchronously drive of a gear train, described linkage comprises a gap bridge tooth (8), interlock tooth (9) and be arranged on driving cog (10) on the worm screw, this driving cog (10) is meshed with gap bridge tooth (8), this gap bridge tooth (8) is meshed with interlock tooth (9), described gap bridge tooth (8) is rotatably connected on the support, described interlock tooth (9) is arranged on the middle shuttle frame (6), turning cylinder on the middle rotating shuttle (7) is connected mutually with interlock tooth (9), offer a connecting hole on the described interlock tooth (9), the turning cylinder of above-mentioned middle rotating shuttle (7) is plugged on the connecting hole and circumferentially is fixed in the connecting hole, described worm-and-wheel gear comprise worm gear (11) and with the joining worm screw of worm gear (11) (12), described worm gear (11) is provided with helical teeth one (13), be provided with the helical teeth two (14) that is meshed with helical teeth one (13) worm screw (12), described worm screw (12) is a hollow bushing, and the turning cylinder of above-mentioned left-handed shuttle (4) or dextrorotation shuttle (5) can be pegged graft in the hollow bushing and circumferentially is fixed in the hollow bushing.
2. the transmission mechanism of three-needle lock stitch seam plaining machine according to claim 1 is characterized in that, the helical teeth two (14) on the worm screw (12) of described left shuttle frame (2) and driving cog (10) respectively coaxial line are positioned on the periphery wall of hollow bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110272828 CN102433694B (en) | 2011-09-15 | 2011-09-15 | Transmission mechanism of three-needle lockstitch sewing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110272828 CN102433694B (en) | 2011-09-15 | 2011-09-15 | Transmission mechanism of three-needle lockstitch sewing machine |
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| Publication Number | Publication Date |
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| CN102433694A CN102433694A (en) | 2012-05-02 |
| CN102433694B true CN102433694B (en) | 2013-03-13 |
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| CN 201110272828 Expired - Fee Related CN102433694B (en) | 2011-09-15 | 2011-09-15 | Transmission mechanism of three-needle lockstitch sewing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102691185B (en) * | 2012-06-15 | 2016-08-24 | 贺传均 | A kind of rotating shuttle rotates sewing machine with eedle synchronous self-adapting |
| CN104911837A (en) * | 2015-06-19 | 2015-09-16 | 台州学院 | Transmission mechanism of three-needle lock stitch sewing machine |
| CN111118769B (en) * | 2020-03-23 | 2024-09-13 | 浙江镨美科智能刺绣设备有限公司 | Multi-head rotating shuttle driving system |
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| KR100229843B1 (en) * | 1997-11-24 | 1999-11-15 | 서명원 | Button feeding device with both width control function and centering function |
| JP4450198B2 (en) * | 2004-09-28 | 2010-04-14 | ブラザー工業株式会社 | Horizontal rotary hook |
| CN101021034B (en) * | 2007-03-20 | 2011-09-14 | 新杰克缝纫机股份有限公司 | Three-needle lock stitch seam plaining machine |
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Owner name: TAIZHOU ZHONGKE SARTORIUS CO., LTD. Free format text: FORMER OWNER: ZHANG JINFU Effective date: 20150421 |
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Effective date of registration: 20150421 Address after: The 1 District of Jiaojiang Xiachen street high Zhang village in Taizhou City, Zhejiang province 318010 No. 73 Patentee after: Taizhou plain Zhong Ke Sewing machines Co., Ltd Address before: The 1 District of Jiaojiang Xiachen street high Zhang village in Taizhou City, Zhejiang province 318010 No. 73 Patentee before: Zhang Jinfu |
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