CN103741380A - Upper and lower synchronous feeding mechanisms of thin-material lockstitch sewing machine and feeding method thereof - Google Patents
Upper and lower synchronous feeding mechanisms of thin-material lockstitch sewing machine and feeding method thereof Download PDFInfo
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- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to upper and lower synchronous feeding mechanisms of a thin-material lockstitch sewing machine and a feeding method thereof. The mechanisms are designed aiming at that the similar product mechanisms are not easy to adjust and high in synchronous feeding difficulty. The design key points of the mechanisms are that the upper pin shaft hole of an upper feeding oscillating plate seat is connected to the housing of the lockstitch sewing machine through a pin shaft, while swinging around the pin shaft, the upper feeding oscillating plate seat drives the upper synchronous feeding mechanism to change the swing amplitude so as to change the distance of travel of upper feeding teeth, a lower feeding oscillating plate seat swings around the pin shaft and thus drives the lower feeding mechanism to change the swing amplitude and also to change the distance of travel of lower feeding teeth, a synchronous connecting rod eccentric pin and a synchronous connecting rod are provided so that the upper and lower feeding teeth move synchronously, and under the error influence of the upper synchronous feeding mechanism and the lower synchronous feeding mechanism, the center distance of the synchronous connecting rod is adjusted by the synchronous connecting rod eccentric pin so that the upper synchronous feeding mechanism and the lower synchronous feeding mechanism run synchronously. The manufacturing cost of the upper and lower synchronous feeding mechanisms of the thin-material lockstitch sewing machine is low, the feeding method is feasible, the labor efficiency is effectively improved, and therefore, the upper and lower synchronous feeding mechanisms and the feeding method are suitable for popularization and application.
Description
Technical field
The present invention relates to industrial sewing machine, belong to the upper and lower synchronous feeding mechanism of thin material flat seam machine.
Technical background
At present, the traditional thin material industrial flat bed sewing machine field upper and lower differential feed of general employing mechanism, this type of upper and lower differential feed mechanism is as the application number 200910045716.2 disclosing in Chinese patent literature, Granted publication day 2012.11.14, denomination of invention " has differential feed mechanism on the Sewing machines of contraction joint function and uses the upper feeding of this mechanism mechanism of crumpling "; Gai Shang differential feed mechanism comprises pads swing axis, crank, presser feet wobble crank, cloth pushing shaft, cloth feeding crank, crank connecting link, presser feet connecting rod I, presser feet connecting rod II, outer presser feet; Also comprise and regulate fork axle; Be installed on and regulate the adjusting fork that on fork axle, also adjustable adjusting fork axle swings, described adjusting fork axle is connected with crank by a connecting rod I; The other end of crank connecting link and described slide crank are dynamically connected.But above-mentioned this type of mechanism is comparatively complicated, be difficult for regulating, cost is higher, is not suitable for promoting the use of, and is difficult to meet the demand of most of clothes manufacturer to upper and lower layer cloth feeding Complete Synchronization.
Summary of the invention
One of technical problem to be solved by this invention is to provide the upper and lower synchronous feeding mechanism of a kind of thin material flat seam machine and feeding method thereof, make feed mechanism Complete Synchronization, to solve the demand of thin material garment market for upper and lower synchronous feeding mechanism, the present invention is achieved by the following technical solutions.
In a kind of thin material flat seam machine, lower synchronous feeding mechanism, this mechanism comprises and is provided with stitch length knob, needle gage screw rod, needle gage adjuster, the connecting rod of falling feeding, feeding crank, long oscillating deck, interior oscillating deck, outer oscillating deck, crank connecting link, and upper synchronous feeding mechanism and lower synchronous feeding mechanism, described upper synchronous feeding mechanism comprises that feeding swings panel seat, upper feeding rear crank, upper feed spool, upper axle, upper feeding connecting rod, upper feeding fork-shaped crank, crank before upper feeding, upper feeding balance staff, upper feeding retainer, upper feeding tooth, upper feeding fork, described lower synchronous feeding mechanism comprises that lower feeding swings panel seat, lower feed spool, lower feeding connecting rod, lower feeding tooth, described upper feeding fork drives the front crank of upper feeding, the interlock of upper feeding fork-shaped crank by upper feeding balance staff, and before upper feeding, crank and upper feeding fork-shaped crank are hinged, and upper feeding fork-shaped crank is provided with feed spool, and crank of tooth frame is provided with lower feed spool, its main points are that the upper pin hole of the upper feeding swing panel seat of described upper synchronous feeding mechanism connects the casing of flat seam machine by bearing pin, and described upper feeding swings panel seat when bearing pin is put, and in drive, feed mechanism changes amplitude of fluctuation, the stroke of feeding tooth in change.
The downside pin axis hole of the lower feeding swing panel seat of described lower synchronous feeding mechanism connects the casing of flat seam machine by bearing pin, described lower feeding swings panel seat when bearing pin swings, and drives down charging mechanism to change amplitude of fluctuation, the stroke of feeding tooth under changing.
Described synchronising (connecting) rod connects feeding by bearing pin and swings panel seat, lower feeding swing panel seat, makes described upper and lower feeding swing panel seat and synchronously swings, and realizes the synchronous feeding of upper and lower synchronous feeding mechanism.
Described synchronising (connecting) rod cam pin one end is installed and is connected lower feeding swing panel seat, and the other end connects synchronising (connecting) rod.
Described synchronising (connecting) rod swings panel seat with upper feeding respectively, lower feeding swings panel seat and is connected, and when lower feeding swings panel seat swing state, in drive, feeding swings the synchronous swing of panel seat, and in interlock, feeding tooth, lower feeding tooth are synchronized with the movement.
The upper synchronous feeding mechanism that described synchronous feeding mechanism brings in order to eliminate part's machining errors, lower synchronous feeding mechanism error effect, by synchronising (connecting) rod cam pin, be used for regulating the centre-to-centre spacing of synchronising (connecting) rod, make synchronous feeding mechanism, the operation of lower synchronous feeding mechanism synchronously.That is to say that described upper synchronous feeding mechanism, lower synchronous feeding mechanism error are regulated the centre-to-centre spacing of synchronising (connecting) rod by the synchronising (connecting) rod cam pin being provided with, make synchronous feeding mechanism, the operation of lower synchronous feeding mechanism implement synchronous.
One end of the described connecting rod of falling feeding is connected with needle gage adjuster, the other end swings panel seat with lower feeding and is connected, one end of crank connecting link is connected with lower feeding connecting rod, the other end swings panel seat by lower feeding and is connected with long oscillating deck one end, the other end of long oscillating deck is connected with feeding crank, and feeding crank is arranged at lower feed spool; Long oscillating deck and lower feeding swing panel seat and are connected as a single entity, the connecting rod of falling feeding, crank connecting link, synchronising (connecting) rod synchronous interaction.Thereby further make lower feed spool, upper feed spool, upper axle by the connecting rod of falling feeding, crank connecting link, synchronising (connecting) rod, and the upper feeding at synchronising (connecting) rod two ends swing panel seat, lower feeding swings panel seat and realizes interlock and synchronous feeding.
The connecting rod of the falling feeding side that described lower feeding swings panel seat is " T " font, and projection and the lower feed spool of described " T " font offset.The structure that above-mentioned lower feeding swings panel seat plays function and the object of lower feeding swing panel seat and lower feed spool stroke limit.
When described upper feeding swing panel seat is connected with synchronising (connecting) rod one end, upper feeding swings panel seat and is connected with one end of upper feeding rear crank, upper feeding connecting rod respectively by interior oscillating deck, outer oscillating deck, and the other end of upper feeding rear crank, upper feeding connecting rod is arranged at respectively feed spool, upper axle; Going up feeding swings in the notch of panel seat and is provided with outer oscillating deck, in the notch of outer oscillating deck, be provided with interior oscillating deck, one end of outer oscillating deck swings panel seat with upper feeding and is connected simultaneously, the other end is connected with upper feeding connecting rod, interior oscillating deck simultaneously, and upper feeding swings panel seat, interior oscillating deck, outer oscillating deck synchronous interaction.Said structure is that upper feeding swings the concrete structure that panel seat drives upper feed spool, upper axle to link, and the structure that notch is nested has successively reduced taking of the space of components such as interior oscillating deck, outer oscillating deck.
The present invention solves the technical problem of existing similar feed mechanism Complete Synchronization, and feeding is comparatively steady, sensitive, quick, and more for convenience, structure is comparatively compact in maintenance, and manufacturing cost is lower, raises labour efficiency, and feeding method is feasible, is applicable to applying.
Accompanying drawing explanation
Fig. 1 is structure diagram of the present invention.
Fig. 2 is the left side structure enlarged drawing of Fig. 1.
Fig. 3 is the right side structure enlarged drawing of Fig. 1.
Fig. 4 is that the part parts in Fig. 1 connect sketch.
Part name in accompanying drawing and sequence number: 1, stitch length knob, 2, needle gage screw rod, 3, needle gage adjuster, 4, the connecting rod of falling feeding, 5, lower feeding swings panel seat, 501, downside pin axis hole, 6, lower feed spool, 7, feeding crank, 8, long oscillating deck, 9, synchronising (connecting) rod cam pin, 10, short oscillating deck, 11, synchronising (connecting) rod, 12, upper feeding swings panel seat, 1201, upper pin hole, 13, interior oscillating deck, 14, outer oscillating deck, 15, upper feeding rear crank, 16, upper feed spool, 17, upper axle, 18, upper feeding connecting rod, 19, lower feeding connecting rod, 20, upper feeding fork-shaped crank, 21, crank before upper feeding, 22, upper feeding balance staff, 23, upper feeding retainer, 24, upper feeding tooth, 25, upper feeding fork, 26, lower feeding tooth, 27, retainer, 28, crank of tooth frame.
The specific embodiment
Embodiment is take the feeding method of thin material flat seam machine synchronous feeding mechanism as example, as shown in Figure 1 to 4, this synchronous feeding mechanism is provided with synchronous feeding mechanism and lower synchronous feeding mechanism, the upper pin hole 1201 that the upper feeding of upper synchronous feeding mechanism swings panel seat 12 is mounted on the (casing of bearing pin described in Fig. 1 and flat seam machine on the casing of flat seam machine by bearing pin, and thin material flat seam machine and electric device are not drawn), when described upper feeding swings panel seat when bearing pin swings, in drive, feed mechanism changes amplitude of fluctuation, the stroke of feeding tooth 24 in change.
The downside pin axis hole 501 that the lower feeding of lower synchronous feeding mechanism swings panel seat 5 is mounted on by bearing pin on the casing of flat seam machine, when described lower feeding swings panel seat when bearing pin swings, drives down charging mechanism to change amplitude of fluctuation, changes the stroke of lower feeding tooth 26.
Synchronising (connecting) rod 11 connects feeding by bearing pin and swings panel seat 12, lower feeding swing panel seat 5, makes described upper and lower feeding swing panel seat and synchronously swings, and realizes the synchronous feeding of upper and lower synchronous feeding mechanism.
Synchronising (connecting) rod cam pin 9 one end are installed and are connected lower feeding swing panel seat 5, the other end is connected to synchronising (connecting) rod 11, by synchronising (connecting) rod 11, directly upper feeding swing panel seat 12, lower feeding are swung to panel seat 5 and connect respectively, when swinging panel seat 5 swing state, in drive, feeding swings the synchronous swing of panel seat 12, and in interlock, feeding tooth 24, lower feeding tooth 26 are synchronized with the movement.Simultaneously, the upper synchronous feeding mechanism bringing in order to eliminate part's machining errors, lower synchronous feeding mechanism error effect, lower feeding swings panel seat 5 and is provided with synchronising (connecting) rod cam pin 9 with the junction of synchronising (connecting) rod 11, be used for regulating the centre-to-centre spacing of synchronising (connecting) rod 11, make synchronous feeding mechanism, the operation of lower synchronous feeding mechanism synchronously; Described thin material is delivered to and in flat seam machine, is completed next process through lower feed spool 6, upper feed spool 16, upper axle 17.
The course of action of lower synchronous feeding mechanism: when upper axle 17 rotates one week, drive lower feeding connecting rod 19 to swing, the scope that drives long oscillating deck 8 to limit along short oscillating deck 10 swings, the feeding crank 7 that band is automatically connected on long oscillating deck 8 carries out reciprocally swinging, and drive the lower feed spool 6 and the crank of tooth frame 28 that are fixedly connected with it to carry out the swing of equal angular, thereby driven the retainer 27 being connected on crank of tooth frame 28 and the lower feeding tooth 26 being fixedly connected on retainer 27 to move back and forth, completed a feeding circulation.
Simultaneously, when upper axle 17 rotates one week, in drive, feeding connecting rod 18 swings, the scope that in driving, oscillating deck 13 limits along outer oscillating deck 14 swings, the upper feeding rear crank 15 that band is automatically connected on interior oscillating deck 13 carries out reciprocally swinging, and drive the upper feed spool 16 and the upper feeding fork-shaped crank 20 that are fixedly connected with it to carry out the swing of equal angular, thereby the upper feeding balance staff 22 that has driven the front crank 21 of the upper feeding being connected on feeding fork-shaped crank 20 and be fixedly linked with it, upper feeding fork 25, upper feeding retainer 23 and upper feeding tooth 24 move back and forth, complete a upper feeding circulation.
The operation principle of upper and lower synchronous feeding is: when needle gage screw rod 2 being screwed into innermost end by stitch length knob 1, needle gage is zero, when now going up axle 17 and rotating, lower feeding tooth 26 can not seesaw, by the connection of synchronising (connecting) rod 11 and the adjusting of synchronising (connecting) rod cam pin 9, upper feeding tooth 24 also keeps identical zero needle gage with lower feeding tooth 26; When needle gage screw rod 2 is during to inner rotary, by the drive of needle gage adjuster 3 and the connecting rod of falling feeding 4, the angle that makes lower feeding swing panel seat 5 progressively strengthens, thereby makes the also progressively increasing of stroke of lower feeding tooth 26; When lower feeding swings panel seat 5 angles increasing, by the drive of synchronising (connecting) rod 11, the angle that makes feeding swing panel seat 12 also synchronously strengthens, the therefore variation of needle gage, and upper synchronous feeding mechanism, lower synchronous feeding mechanism have all kept identical stroke.
Claims (9)
1. in a thin material flat seam machine, lower synchronous feeding mechanism, this mechanism comprises stitch length knob (1), needle gage screw rod (2), needle gage adjuster (3), the connecting rod of falling feeding (4), feeding crank (7), long oscillating deck (8), interior oscillating deck (13), outer oscillating deck (14), crank connecting link, and upper synchronous feeding mechanism and lower synchronous feeding mechanism, described upper synchronous feeding mechanism comprises that feeding swings panel seat (12), upper feeding rear crank (15), upper feed spool (16), upper axle (17), upper feeding connecting rod (18), upper feeding fork-shaped crank (20), crank (21) before upper feeding, upper feeding balance staff (22), upper feeding retainer (23), upper feeding tooth (24), upper feeding fork (25), described lower synchronous feeding mechanism comprises that lower feeding swings panel seat (5), lower feed spool (6), lower feeding connecting rod (19), lower feeding tooth (26), described upper feeding fork (25) is by crank (21), upper feeding fork-shaped crank (20) interlock before feeding in upper feeding balance staff (22) drive, before upper feeding, crank (21) is hinged with upper feeding fork-shaped crank (20), upper feeding fork-shaped crank (20) is provided with feed spool (16), and crank of tooth frame (28) is provided with lower feed spool (6), it is characterized in that:
The upper pin hole (1201) of the upper feeding swing panel seat (12) of described upper synchronous feeding mechanism connects the casing of flat seam machine by bearing pin, described upper feeding swings panel seat when bearing pin is put, in drive, feed mechanism changes amplitude of fluctuation, the stroke of feeding tooth (24) in change;
The downside pin axis hole (501) of the lower feeding swing panel seat (5) of described lower synchronous feeding mechanism connects the casing of flat seam machine by bearing pin, described lower feeding swings panel seat when bearing pin swings, drive down charging mechanism to change amplitude of fluctuation, change the stroke of lower feeding tooth (26);
Described synchronising (connecting) rod (11) connects feeding by bearing pin and swings panel seat (12), lower feeding swing panel seat (5), makes described upper and lower feeding swing panel seat and synchronously swings, and realizes the synchronous feeding of upper and lower synchronous feeding mechanism;
Described synchronising (connecting) rod cam pin (9) one end is installed and is connected lower swing panel seat (5), and the other end connects synchronising (connecting) rod (11).
2. the upper and lower synchronous feeding mechanism of thin material flat seam machine according to claim 1, it is characterized in that described synchronising (connecting) rod (11) swings panel seat (12) with upper feeding respectively, lower feeding swings panel seat (5) and is connected, when lower feeding swings panel seat (5) swing state, in drive, feeding swings the synchronous swing of panel seat (12), and in interlock, feeding tooth (24), lower feeding tooth (26) are synchronized with the movement.
3. the upper and lower synchronous feeding mechanism of thin material flat seam machine according to claim 1, it is characterized in that described upper synchronous feeding mechanism, lower synchronous feeding mechanism error are regulated the centre-to-centre spacing of synchronising (connecting) rod (11) by synchronising (connecting) rod cam pin (9), make synchronous feeding mechanism, the operation of lower synchronous feeding mechanism implement synchronous.
4. the upper and lower synchronous feeding mechanism of thin material flat seam machine according to claim 1, the one end that it is characterized in that the described connecting rod of falling feeding (4) is connected with needle gage adjuster (3), the other end swings panel seat (5) with lower feeding and is connected, one end of crank connecting link is connected with lower feeding connecting rod (19), the other end swings panel seat (5) by lower feeding and is connected with long oscillating deck (8) one end, the other end of long oscillating deck (8) is connected with feeding crank (7), and feeding crank (7) is arranged at lower feed spool (6); Long oscillating deck (8) is connected as a single entity with lower swing panel seat (5), the connecting rod of falling feeding (4), crank connecting link, synchronising (connecting) rod (11) synchronous interaction.
5. the upper and lower synchronous feeding mechanism of thin material flat seam machine according to claim 4, is characterized in that the connecting rod of falling feeding (4) side that described lower feeding swings panel seat (5) is " T " font, and projection and the lower feed spool (6) of described " T " font offset.
6. the upper and lower synchronous feeding mechanism of thin material flat seam machine according to claim 1, when it is characterized in that described upper feeding swing panel seat (12) is connected with synchronising (connecting) rod (11) one end, upper feeding swings panel seat (12) and is connected with one end of upper feeding rear crank (15), upper feeding connecting rod (18) respectively by interior oscillating deck (13), outer oscillating deck (14), and the other end of upper feeding rear crank (15), upper feeding connecting rod (18) is arranged at respectively feed spool (16), upper axle (17); Go up feeding swing panel seat (12) notch in be provided with outer oscillating deck (14), in the notch of outer oscillating deck (14), be provided with interior oscillating deck (13), one end of outer oscillating deck (14) swings panel seat (12) with upper feeding and is connected simultaneously, the other end is connected with upper feeding connecting rod (18), interior oscillating deck (13) simultaneously, and upper feeding swings panel seat (12), interior oscillating deck (13), outer oscillating deck (14) synchronous interaction.
7. a feeding method for the upper and lower synchronous feeding mechanism of thin material flat seam machine according to claim 1, this synchronous feeding mechanism is provided with synchronous feeding mechanism and lower synchronous feeding mechanism, it is characterized in that:
Described synchronising (connecting) rod (11) directly swings panel seat (12) by upper feeding respectively, lower feeding swings panel seat (5) and connects, when lower feeding swings panel seat (5) swing state, in drive, swing the synchronous swing of panel seat (12), in interlock, feeding tooth (24), lower feeding tooth (26) are synchronized with the movement; The junction of lower feeding swing panel seat (5) and synchronising (connecting) rod (11) is provided with the centre-to-centre spacing of synchronising (connecting) rod cam pin (9) adjusting synchronising (connecting) rod (11), makes synchronous feeding mechanism, the operation of lower synchronous feeding mechanism synchronously; Described thin material is delivered to and in flat seam machine, is completed next process through lower feed spool (6), upper feed spool (16), upper axle (17);
The course of action of lower synchronous feeding mechanism: when upper axle (17) rotates one week, drive lower feeding connecting rod (19) to swing, the scope that drives long oscillating deck (8) to limit along short oscillating deck (10) swings, the feeding crank (7) that band is automatically connected on long oscillating deck (8) carries out reciprocally swinging, and drive the lower feed spool (6) and the crank of tooth frame (28) that are fixedly connected with it to carry out the swing of equal angular, thereby the lower feeding tooth (26) that has driven the retainer (27) being connected on crank of tooth frame (28) and be fixedly connected on retainer (27) moves back and forth, complete a feeding circulation.
8. according to claim 7 in thin material flat seam machine, the feeding method of lower synchronous feeding mechanism, it is characterized in that: when upper axle (17) rotates one week, in drive, feeding connecting rod (18) swings, the scope that in driving, oscillating deck (13) limits along outer oscillating deck (14) swings, the upper feeding rear crank (15) that band is automatically connected on interior oscillating deck (13) carries out reciprocally swinging, and drive the upper feed spool (16) and the upper feeding fork-shaped crank (20) that are fixedly connected with it to carry out the swing of equal angular, thereby the upper feeding balance staff (22) that has driven the front crank (21) of the upper feeding being connected on feeding fork-shaped crank (20) and be fixedly linked with it, upper feeding fork (25), upper feeding retainer (23) and upper feeding tooth (24) move back and forth, complete a upper feeding circulation.
9. the feeding method of the upper and lower synchronous feeding mechanism of thin material flat seam machine according to claim 8, it is characterized in that: the operation principle of upper and lower synchronous feeding mechanism is: when needle gage screw rod (2) being screwed into innermost end by stitch length knob (1), needle gage is zero, while now going up axle (17) rotation, lower feeding tooth (26) can not seesaw, by the connection of synchronising (connecting) rod (11) and the adjusting of synchronising (connecting) rod cam pin (9), upper feeding tooth (24) also keeps identical zero needle gage with lower feeding tooth (26); When needle gage screw rod (2) is during to inner rotary, by the drive of needle gage adjuster (3) and the connecting rod of falling feeding (4), the angle that makes lower feeding swing panel seat (5) progressively strengthens, thereby the stroke of lower feeding tooth (26) is also progressively strengthened; When lower feeding swings the increasing of panel seat (5) angle, by the drive of synchronising (connecting) rod (11), the angle that makes feeding swing panel seat (12) also synchronously strengthens, the therefore variation of needle gage, and upper synchronous feeding mechanism, lower synchronous feeding mechanism have all kept identical stroke.
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| CN201310714257.9A CN103741380B (en) | 2013-12-20 | 2013-12-20 | The upper and lower synchronous feeding mechanism of thin material flat seam machine and feeding method thereof |
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| CN201310714257.9A CN103741380B (en) | 2013-12-20 | 2013-12-20 | The upper and lower synchronous feeding mechanism of thin material flat seam machine and feeding method thereof |
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| CN105019152A (en) * | 2015-06-30 | 2015-11-04 | 拓卡奔马机电科技有限公司 | Cloth delivery mechanism |
| CN105297294A (en) * | 2015-11-12 | 2016-02-03 | 蔡金财 | Up-down differential feeding adjustable cuff sewing machine and electric and manual adjusting method thereof |
| CN106319773A (en) * | 2016-10-19 | 2017-01-11 | 浙江中捷缝纫科技有限公司 | Up-down synchronous and differential feeding mechanism of sewing machine |
| CN106702602A (en) * | 2016-10-10 | 2017-05-24 | 阮晨航 | Lockstitch sewing machine |
| CN106835514A (en) * | 2016-10-10 | 2017-06-13 | 阮晨航 | The cloth-dragging wheel and tooth of a kind of flat seam machine are adjusted in synchronism system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106702602A (en) * | 2016-10-10 | 2017-05-24 | 阮晨航 | Lockstitch sewing machine |
| CN106835514A (en) * | 2016-10-10 | 2017-06-13 | 阮晨航 | The cloth-dragging wheel and tooth of a kind of flat seam machine are adjusted in synchronism system |
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| CN103741380B (en) | 2015-09-30 |
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