CN203668637U - Cloth conveying mechanism of sewing machine - Google Patents
Cloth conveying mechanism of sewing machine Download PDFInfo
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- CN203668637U CN203668637U CN201320894528.9U CN201320894528U CN203668637U CN 203668637 U CN203668637 U CN 203668637U CN 201320894528 U CN201320894528 U CN 201320894528U CN 203668637 U CN203668637 U CN 203668637U
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Abstract
The utility model provides a cloth conveying mechanism of a sewing machine, and belongs to the technical field of sewing machines. The cloth conveying mechanism solves the problem that in the prior art, an up-and-down comprehensive cloth conveying structure is complex in structure and high in manufacturing cost. The cloth conveying mechanism comprises a main shaft, a needle rod, a pressing rod and a cloth conveying tooth drive shaft driving cloth conveying teeth to move. An outer presser foot is fixedly connected to the lower end of the pressing rod, the cloth conveying mechanism further comprises an inner presser foot and a presser foot connection rod, the inner presser foot is fixedly connected with the lower end of the presser foot connection rod, the needle rod is connected to the presser foot connection rod and can slide up and down on the presser foot connection rod, the needle rod is fixed in the radial direction relative to the presser foot connection rod, a front-and-back swing mechanism capable of driving the presser foot connection rod to swing front and back when the main shaft rotates is arranged between the presser foot connection rod and the main shaft, and an up-and-down moving mechanism capable of driving the presser foot connection rod to move up and down when the main shaft rotates is further arranged between the presser foot connection rod and the main shaft. The cloth conveying mechanism has the advantages of being simple in structure, low in manufacturing cost, and the like.
Description
Technical field
The utility model belongs to sewing machine technique field, relates to a kind of cloth feeding mechanism of Sewing machines.
Background technology
Sewing machines is to use one or more sewing thread, forms one or more stitchings on sewing, the machine that makes one or more layers sewing interweave or unite by a seam.
Thick stuff sewing machine is to use a kind of Sewing machines very widely, and it is mainly applicable to the super-thick material article such as various container bags, hanging belt, safety belt, tent, leather and makes.At present, the feeding style of thick stuff sewing machine is divided into upper and lower compound feed and two kinds of comprehensive work feed modes up and down, and upper and lower compound feed is presser feet work feed together with feed dog, and two is synchronous, comprehensive work feed mode is eedle, presser feet, feed dog work feed together up and down, and three is synchronous.Two kinds of different work feed modes adapt to different sewings, upper and lower compound feed is mainly applicable to two-layer to multilayer leather-like Sewing machines, and comprehensive work feed mode is because eedle participates in feeding simultaneously, is more better than multilayer class sewing, in Sewing machines process, sewing is difficult for dislocation up and down, and layered suture performance is better.
The thick material machine of existing comprehensive work feed is larger with the upper and lower thick material machine of work feed structural difference, therefore produces the required equipment of two kinds of products more simultaneously, has brought very large economic pressures to producer, and therefore indivedual producers often can only produce a kind of product.Enable to produce the Sewing machines of two kinds of work feed modes, but because the thick material machine of the comprehensive work feed of tradition is larger with the upper and lower thick material machine of work feed architectural difference, part is more, makes the thick material machine of comprehensive work feed manufacturing cost very high, greatly reduces the market competitiveness simultaneously.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of cloth feeding mechanism of the Sewing machines that can realize comprehensive work feed up and down and simple in structure, low cost of manufacture.
The purpose of this utility model can realize by following technical proposal: a kind of cloth feeding mechanism of Sewing machines, comprise main shaft, shank, depression bar and the feed dog driving shaft for driving feed dog to move, the lower end of described depression bar is fixed with outer presser feet, it is characterized in that, this cloth feeding mechanism also comprises interior presser feet and presser feet connecting rod, described interior presser feet is connected in presser feet connecting rod lower end, described shank is connected on presser feet connecting rod and can on presser feet connecting rod, slides up and down, the relative presser feet connecting rod of this shank is radially fixing, between described presser feet connecting rod and main shaft, be provided with the swing mechanism that can drive the swing of presser feet connecting rod when main shaft rotates, between described presser feet connecting rod and main shaft, be also provided with the up-down mechanism that can drive presser feet connecting rod to move up and down when main shaft rotates.
This cloth feeding mechanism is realized the principle of comprehensive work feed up and down: interior presser feet is fixed by screws on presser feet connecting rod, plays work feed effect.The eedle of Sewing machines is connected in shank lower end, and main shaft is connected with the motor of Sewing machines, can rotate by driven by motor.When main shaft rotates, shank slides up and down on presser feet connecting rod, and presser feet connecting rod seesaws under the effect of swing mechanism, moves up and down under the effect of up-down mechanism simultaneously, and making the whole movement locus of presser feet connecting rod is elliptical path.And radially fixing on presser feet connecting rod due to shank, interior presser feet is connected in presser feet connecting rod lower end, and before and after therefore eedle, interior presser feet also can carry out, upper and lower motion, work feed together with feed dog, realizes comprehensive work feed up and down.This Sewing machines, compared with the comprehensive cloth-feeding sewing machine of tradition, improves littlely, has just realized the object of comprehensive work feed up and down, simple in structure after improving, and has advantages of low cost of manufacture.
In the cloth feeding mechanism of above-mentioned Sewing machines, the connecting portion that described presser feet connecting rod comprises installation portion, lower installation portion and bar shaped is tabular and vertical direction arranges, described upper installation portion and lower installation portion are all positioned at connecting portion one side, described upper installation position is in connecting portion upper end, described lower installation position is in connecting portion middle part, on described upper installation portion, offer shank via hole, on lower installation portion, offer lower needle bar via hole, the upper end of described shank is located in described upper shank via hole, and the middle part of shank is located in described lower needle bar via hole.
In the cloth feeding mechanism of above-mentioned Sewing machines, described swing mechanism comprises swing connecting bar seat, pressure foot lifting variation connecting rod, promote presser feet variation crank, presser feet wobble crank and presser feet connecting rod swing axle, described presser feet connecting rod swing axle is horizontally set on casing and can on casing, rotates, the middle part of described lifting presser feet variation crank is hinged on casing, described swing connecting bar seat is connected on presser feet connecting rod, one end of described pressure foot lifting variation connecting rod is hinged on swing connecting bar seat, the other end of pressure foot lifting variation connecting rod is hinged on the lower end that promotes presser feet variation crank, the upper end of described lifting presser feet variation crank offers open slot, in described open slot, slide and be provided with adjusting slider, the upper end of described presser feet wobble crank is connected in one end of presser feet connecting rod swing axle, the lower end of presser feet wobble crank offers bar shaped slide opening, in described bar shaped slide opening, be provided with adjusting slide bar, one end of described adjusting slide bar is stretched out bar shaped slide opening and is connected mutually with adjusting slider, between the other end of described presser feet connecting rod swing axle and feed dog driving shaft, be provided with the transmission component one that both are linked.
In the cloth feeding mechanism of above-mentioned Sewing machines, described transmission component one comprises connecting crank, long-armed connecting rod and is connected in the feed dog driving shaft crank on feed dog driving shaft, one end of described connecting crank is fixed on the end of presser feet connecting rod, the other end of described connecting crank is hinged on the upper end of long-armed connecting rod, and the lower end of described long-armed connecting rod is hinged on feed dog driving shaft crank.
In the cloth feeding mechanism of above-mentioned Sewing machines, described up-down mechanism comprises pressure foot lifting crank, power transmission shaft, presser feet feeding crank, presser feet feeding crank connecting link, the presser feet feeding crank support that takes the shape of the letter U tabular, the middle part of described presser feet feeding crank support is hinged on casing, described presser feet feeding crank is L-shaped tabular, the middle part of described presser feet feeding crank, the both ends of presser feet feeding crank connecting link, the upper end three of presser feet connecting rod connecting portion is hinged, the upper end of described presser feet feeding crank is hinged on one end of presser feet feeding crank connecting link, the other end of described presser feet feeding crank connecting link and one end of pressure foot lifting crank are hinged, the other end of described pressure foot lifting crank is link, described link is connected in when one end of power transmission shaft and power transmission shaft rotate and can drives pressure foot lifting crank to swing around its link, described power transmission shaft is rotationally connected on casing, between described power transmission shaft and main shaft, be provided with the transmission component two that main shaft rotational drives power transmission shaft to rotate.
In the cloth feeding mechanism of above-mentioned Sewing machines, described transmission component two comprises power transmission shaft crank, curved boom connecting rod, work feed eccentric wheel, swing seat, regulating shaft moves up and down, regulating shaft crank, work feed connecting rod, described swing seat takes the shape of the letter U tabular, the described regulating shaft that moves up and down rotates and arranges on casing, described regulating shaft crank is connected in one end of the regulating shaft that moves up and down, offer pin shaft hole one parallel with the regulating shaft that moves up and down on described regulating shaft crank, there is pin shaft hole two at the middle part of described swing seat, described pin shaft hole one and described pin shaft hole two concentrics, in pin shaft hole one and pin shaft hole two, be inserted with bearing pin, described work feed eccentric wheel is set on machine spindle, one end of described work feed connecting rod is socketed on work feed eccentric wheel, described power transmission shaft crank is connected in end part of driving shaft, one end of described curved boom connecting rod is hinged on power transmission shaft crank, the other end of described curved boom connecting rod, the other end of work feed connecting rod and the both ends of swing seat are hinged.
In the cloth feeding mechanism of above-mentioned Sewing machines, the cloth feeding mechanism of this Sewing machines also comprises adjusting bidding quotation, adjustment screw, described adjustment screw is fixed on and moves up and down on regulating shaft, on described casing, rotate and be provided with an adjusting rod, one end of described adjusting rod is stretched out casing and is connected mutually with regulating bidding quotation, the other end of described adjusting rod is positioned at casing and has tabular cam part, and described adjustment screw is resisted against the top edge of cam part and in the time regulating bidding quotation to rotate counterclockwise, can lifts adjustment screw and drives the regulating shaft that moves up and down to rotate.Outer presser feet is that alternatively up and down carries out with interior presser feet motion process, and design is herein for regulating the alternately amount of outer presser feet with interior presser feet motion process.Regulate on bidding quotation and have and indicate this alternately to measure big or small numerical value, its adjustable range is 2-5.5, is divided into 8 parts by 2-5.5, every part of interval 0.5, and numeral is ascending by arranged evenly clockwise, and while being rotated counterclockwise, numeral increases, and presser feet replaces amount and increases.In the time sewing without gradient fabric, presser feet alternately amount is turned down, and machine stitching is smooth-going, and noise is less.When Sewing machines fabric has height while stitching, by presser feet alternately amount tune up, maximum alternately amount can be adjusted to 5.5mm.
In the cloth feeding mechanism of above-mentioned Sewing machines, on the described regulating shaft that moves up and down, be also fixed with lock-screw, on described casing, rotate and be provided with check lock lever, one end of described check lock lever is stretched out casing and is connected with locking bidding quotation, and the other end of described check lock lever is positioned at casing and has tabular tight lock part.When lock-screw is resisted against on tight lock part, the regulating shaft self that moves up and down can avoid Sewing machines to run up time rotates, and ensures the accuracy that alternately amount regulates.
In the cloth feeding mechanism of above-mentioned Sewing machines, on described interior presser feet, offer the eedle via hole passing for eedle.
Compared with prior art, the cloth feeding mechanism of this Sewing machines has the following advantages:
1, the cloth feeding mechanism of this Sewing machines just carries out less improvement based on descend traditionally on the basis of compound feed mechanism, and optimal design, with less cost, has just realized up and down comprehensively work feed function, has stronger practicality.
2, the cloth feeding mechanism of this Sewing machines China and foreign countries presser feet is that alternatively up and down carries out with interior presser feet motion process, and alternately amount for adjustable, in the time that fabric has height and stitches, can by presser feet alternately amount tune up, thereby ensure to have good sewing quality.
3, the cloth feeding mechanism of this Sewing machines also has the advantages such as simple in structure, stable, low cost of manufacture.
Brief description of the drawings
Fig. 1 is perspective view of the present utility model.
Fig. 2 is the blast structural representation of the utility model up-down mechanism.
Fig. 3 is partial enlarged drawing of the present utility model.
Fig. 4 is the partial exploded view of the utility model swing mechanism.
Fig. 5 is the perspective view of the utility model swing mechanism.
Fig. 6 is the blast structural representation of the utility model transmission component two.
In figure, 1, main shaft; 2, shank; 3, depression bar; 4, feed dog driving shaft; 5, outer presser feet; 6, interior presser feet; 7, presser feet connecting rod; 71, upper installation portion; 71a, upper shank via hole; 72, lower installation portion; 72a, lower needle bar via hole; 73, connecting portion; 8, swing connecting bar seat; 9, pressure foot lifting variation connecting rod; 10, promote presser feet variation crank; 11, presser feet wobble crank; 12, presser feet connecting rod swing axle; 13, open slot; 14, adjusting slider; 15, bar shaped slide opening; 16, regulate slide bar; 17, connecting crank; 18, long-armed connecting rod; 19, feed dog driving shaft crank; 20, presser feet feeding crank; 21, presser feet feeding crank connecting link; 22, presser feet feeding crank support; 23, power transmission shaft crank; 24, curved boom connecting rod; 25, work feed eccentric wheel; 26, swing seat; 27, the regulating shaft that moves up and down; 28, regulating shaft crank; 29, work feed connecting rod; 30, pin shaft hole one; 31, pin shaft hole two; 32, bearing pin; 33, regulate bidding quotation; 34, adjustment screw; 35, adjusting rod; 351, cam part; 36, lock-screw; 37, check lock lever; 371, tight lock part; 38, locking bidding quotation; 39, eedle via hole; 40, power transmission shaft; 41, pressure foot lifting crank.
Detailed description of the invention
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
The cloth feeding mechanism of this Sewing machines comprises main shaft 1, shank 2, depression bar 3, interior presser feet 6, presser feet connecting rod 7 and for driving the parts such as feed dog driving shaft 4 of feed dog motion.
As shown in Figure 1, the lower end of depression bar 3 is fixed with outer presser feet 5, and interior presser feet 6 is connected in presser feet connecting rod 7 lower ends, offers the eedle via hole 39 passing for eedle on interior presser feet 6.Presser feet connecting rod 7 comprises installation portion 71, lower installation portion 72 and the connecting portion 73 that bar shaped is tabular and vertical direction arranges, upper installation portion 71 and lower installation portion 72 are all positioned at connecting portion 73 1 sides, upper installation portion 71 is positioned at connecting portion 73 upper ends, lower installation portion 72 is positioned at connecting portion 73 middle parts, on upper installation portion 71, offer shank via hole 72a, on lower installation portion 72, offer lower needle bar via hole 72a, the upper end of shank 2 is located in shank via hole 72a, the middle part of shank 2 is located in lower needle bar via hole 72a, this shank 2 is connected on presser feet connecting rod 7, syndeton between the utility model shank 2 and main shaft 1 is identical with tradition three synchronous Sewing machiness, shank 2 slides up and down on presser feet connecting rod 7 by main shaft 1 kinetic energy, the relative presser feet connecting rod 7 of shank 2 is radially fixing, between presser feet connecting rod 7 and main shaft 1, be provided with the swing mechanism that can drive 7 swings of presser feet connecting rod when main shaft 1 rotates, between presser feet connecting rod 7 and main shaft 1, be also provided with the up-down mechanism that can drive presser feet connecting rod 7 to move up and down when main shaft 1 rotates.
Particularly, as shown in Figure 4 and Figure 5, swing mechanism comprises swing connecting bar seat 8, pressure foot lifting variation connecting rod 9, promote presser feet variation crank 10, presser feet wobble crank 11 and presser feet connecting rod swing axle 12, presser feet connecting rod swing axle 12 is horizontally set on casing, presser feet connecting rod swing axle 12 can rotate around its axle center on casing, the middle part that promotes presser feet variation crank 10 is hinged on casing, swing connecting bar seat 8 is connected on presser feet connecting rod 7, one end of pressure foot lifting variation connecting rod 9 is hinged on swing connecting bar seat 8, the other end of pressure foot lifting variation connecting rod 9 is hinged on the lower end that promotes presser feet variation crank 10, the upper end that promotes presser feet variation crank 10 offers open slot 13, the interior slip of open slot 13 is provided with adjusting slider 14, the upper end of presser feet wobble crank 11 is connected in one end of presser feet connecting rod swing axle 12, the lower end of presser feet wobble crank 11 offers bar shaped slide opening 15, in bar shaped slide opening 15, be provided with and regulate slide bar 16, regulate one end of slide bar 16 stretch out bar shaped slide opening 15 and be connected mutually with adjusting slider 14, between the other end of presser feet connecting rod swing axle 12 and feed dog driving shaft 4, be provided with the transmission component one that both are linked.Wherein transmission component one comprises connecting crank 17, long-armed connecting rod 18 and is connected in the feed dog driving shaft crank 19 on feed dog driving shaft 4, one end of connecting crank 17 is fixed on the end of presser feet connecting rod 7, the other end of connecting crank 17 is hinged on the upper end of long-armed connecting rod 18, and the lower end of long-armed connecting rod 18 is hinged on feed dog driving shaft crank 19.
As shown in Figures 2 and 3, up-down mechanism comprises pressure foot lifting crank 41, power transmission shaft 40, presser feet feeding crank 20, presser feet feeding crank connecting link 21, the presser feet feeding crank support 22 that takes the shape of the letter U tabular, the middle part of presser feet feeding crank support 22 is hinged on casing, presser feet feeding crank 20 is L-shaped tabular, the middle part of presser feet feeding crank 20, the both ends of presser feet feeding crank connecting link 21, the upper end three of presser feet connecting rod 7 connecting portions 73 is hinged, the upper end of presser feet feeding crank 20 is hinged on one end of presser feet feeding crank connecting link 21, the other end of presser feet feeding crank connecting link 21 and one end of pressure foot lifting crank 41 are hinged, the other end of pressure foot lifting crank 41 is link, link is connected in when one end of power transmission shaft 40 and power transmission shaft 40 rotate and can drives pressure foot lifting crank 41 to swing around its link, power transmission shaft 40 is rotationally connected on casing, between power transmission shaft 40 and main shaft 1, be provided with the transmission component two that main shaft 1 rotational drives power transmission shaft 40 to rotate, as shown in Figure 6, this transmission component two comprises power transmission shaft crank 23, curved boom connecting rod 24, work feed eccentric wheel 25, swing seat 26, regulating shaft 27 moves up and down, regulating shaft crank 28, work feed connecting rod 29, swing seat 26 takes the shape of the letter U tabular, the regulating shaft 27 that moves up and down rotates and arranges on casing, regulating shaft crank 28 is connected in one end of the regulating shaft 27 that moves up and down, offer pin shaft hole one 30 parallel with the regulating shaft 27 that moves up and down on regulating shaft crank 28, there is pin shaft hole 2 31 at the middle part of swing seat 26, pin shaft hole 1 and pin shaft hole 2 31 concentrics, in pin shaft hole 1 and pin shaft hole 2 31, be inserted with bearing pin 32, work feed eccentric wheel 25 is set on machine spindle 1, one end of work feed connecting rod 29 is socketed on work feed eccentric wheel 25, power transmission shaft crank 23 is connected in power transmission shaft 40 ends, one end of curved boom connecting rod 24 is hinged on power transmission shaft crank 23, the other end of curved boom connecting rod 24, the both ends of the other end of work feed connecting rod 29 and swing seat 26 are hinged.
The outer presser feet 5 of this work-feeding mean of sewing machine is that alternatively up and down carries out with interior presser feet 6 motion processes, alternately amount is for adjustable, in order to regulate the alternately amount in outer presser feet 5 and interior presser feet 6 motion processes, the cloth feeding mechanism of this Sewing machines also comprises adjusting bidding quotation 33, adjustment screw 34, adjustment screw 34 is fixed on and moves up and down on regulating shaft 27, on casing, rotate and be provided with an adjusting rod 35, one end of adjusting rod 35 is stretched out casing and is connected mutually with regulating bidding quotation 33, the other end of adjusting rod 35 is positioned at casing and has tabular cam part 351, adjustment screw 34 is resisted against the top edge of cam part 351 and in the time regulating bidding quotation 33 to rotate counterclockwise, can lifts adjustment screw 34 and drives the regulating shaft 27 that moves up and down to rotate.
In order to realize locking function in amount alternately after having regulated, while preventing from running up, presser feet replaces quantitative change, as shown in Figure 1, on regulating shaft 27, be also fixed with lock-screw 36 moving up and down, on casing, rotate and be provided with check lock lever 37, one end of check lock lever 37 is stretched out casing and is connected with locking bidding quotation 38, and the other end of check lock lever 37 is positioned at casing and has tabular tight lock part 371.When lock-screw 36 is resisted against on tight lock part 371, the regulating shaft 27 that moves up and down can avoid Sewing machines to run up time self rotates, and ensures the accuracy that alternately amount regulates.
The cloth feeding mechanism of this Sewing machines is realized the principle of comprehensive work feed up and down: interior presser feet 6 is fixed by screws on presser feet connecting rod 7, plays work feed effect.The eedle of Sewing machines is connected in shank 2 lower ends, and main shaft 1 is connected with the motor of Sewing machines, can rotate by driven by motor.Main shaft 1 can drive shank 2 to move up and down, and the syndeton between shank 2 and main shaft 1 is identical with traditional Sewing machines.When main shaft 1 rotates, drive the work feed eccentric wheel 25 on main shaft 1 to rotate, because work feed connecting rod 29 one end are socketed on work feed eccentric wheel 25, therefore the rotational of main shaft 1 becomes the stretching motion of work feed connecting rod 29 other ends, and swing seat 26 is hinged with work feed eccentric wheel 25, swing seat 26 is swung, drive power transmission shaft crank 23 to swing by curved boom connecting rod 24, now power transmission shaft 40 carrys out back rotation, and the pressure foot lifting crank 41 that is connected in power transmission shaft 40 one end swings back and forth around power transmission shaft 40.Pressure foot lifting crank 41 swings the effect by presser feet feeding crank connecting link 21, presser feet feeding crank 20 successively and drives presser feet feeding crank support 22 to swing on casing, because the upper end of presser feet connecting rod 7 is hinged on presser feet feeding crank support 22, therefore when presser feet feeding crank support 22 swings, can drive presser feet connecting rod 7 to move up and down, in realizing, presser feet 6 moves up and down.
In addition on the one hand, rotate simultaneously at main shaft 1, main shaft 1 can drive feed dog driving shaft 4 to rotate, and how main shaft 1 drives feed dog driving shaft 4 to rotate as prior art, and the syndeton in the utility model between feed dog driving shaft 4 and main shaft 1 is identical with traditional Sewing machines.When feed dog driving shaft 4 carrys out back rotation, drive presser feet connecting rod swing axle 12 to carry out back rotation by the effect of feed dog driving shaft crank 19, long-armed connecting rod 18 and connecting crank 17 successively.The rotation of presser feet connecting rod swing axle 12 drives the presser feet wobble crank 11 that is connected in its one end to swing back and forth around presser feet connecting rod swing axle 12, then drive and promote presser feet variation crank 10 around its middle part rotation, the front and back, lower end that promote presser feet variation crank 10 move around, and now just can change connecting rod 9 by pressure foot lifting and drive swing connecting bar seat 8 front and back to move around.And swing connecting bar seat 8 is connected on presser feet connecting rod 7, the front and back of therefore just having realized presser feet connecting rod 7 move around.And interior presser feet 6 is connected in the lower end of presser feet connecting rod 7, and shank 2 radially fixed on presser feet connecting rod 7, and therefore the move around eedle that makes interior presser feet 6, be connected in shank 2 lower ends of the front and back of presser feet connecting rod 7 moves around before and after also.
In sum, this mechanism is in the time that main shaft 1 rotates, presser feet 6 and eedle is existing moves up and down in driving, also there is the motion of fore-and-aft direction simultaneously, the whole movement locus of interior presser feet 6 and eedle is elliptical path, make interior presser feet 6, eedle work feed together with feed dog three, realize comprehensive work feed up and down.This Sewing machines, compared with the comprehensive cloth-feeding sewing machine of tradition, improves littlely, has just realized the object of comprehensive work feed up and down, simple in structure after improving, and has advantages of low cost of manufacture.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendments or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used main shaft 1, shank 2, depression bar 3, feed dog driving shaft 4, outer presser feet 5, interior presser feet 6, presser feet connecting rod 7, upper installation portion 71, upper shank via hole 72a, lower installation portion 72 herein, , lower needle bar via hole 72a, connecting portion 73, swing connecting bar seat 8, pressure foot lifting variation connecting rod 9, promote presser feet variation crank 10, presser feet wobble crank 11, presser feet connecting rod swing axle 12, open slot 13, adjusting slider 14, bar shaped slide opening 15, regulate slide bar 16, connecting crank 17, long-armed connecting rod 18, feed dog driving shaft crank 19, presser feet feeding crank 20, presser feet feeding crank connecting link 21, presser feet feeding crank support 22, power transmission shaft crank 23, curved boom connecting rod 24, work feed eccentric wheel 25, swing seat 26, regulating shaft 27 moves up and down, regulating shaft crank 28, work feed connecting rod 29, pin shaft hole 1, pin shaft hole 2 31, bearing pin 32, regulate bidding quotation 33, adjustment screw 34, adjusting rod 35, cam part 351, lock-screw 36, check lock lever 37, tight lock part 371, locking bidding quotation 38, eedle via hole 39, pressure foot lifting crank 41, power transmission shaft 40 terms such as grade, but do not get rid of the possibility that uses other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (9)
1. the cloth feeding mechanism of a Sewing machines, comprise main shaft (1), shank (2), depression bar (3) and the feed dog driving shaft (4) for driving feed dog to move, the lower end of described depression bar (3) is fixed with outer presser feet (5), it is characterized in that, this cloth feeding mechanism also comprises interior presser feet (6) and presser feet connecting rod (7), described interior presser feet (6) is connected in presser feet connecting rod (7) lower end, described shank (2) is connected to presser feet connecting rod (7) above and can on presser feet connecting rod (7), slides up and down, this shank (2) relatively presser feet connecting rod (7) is radially fixing, between described presser feet connecting rod (7) and main shaft (1), be provided with the swing mechanism that can drive presser feet connecting rod (7) swing when main shaft (1) rotates, between described presser feet connecting rod (7) and main shaft (1), be also provided with the up-down mechanism that can drive presser feet connecting rod (7) to move up and down when main shaft (1) rotates.
2. the cloth feeding mechanism of Sewing machines according to claim 1, it is characterized in that, described presser feet connecting rod (7) comprises installation portion (71), lower installation portion (72) and the connecting portion (73) that bar shaped is tabular and vertical direction arranges, described upper installation portion (71) and lower installation portion (72) are all positioned at connecting portion (73) one sides, described upper installation portion (71) is positioned at connecting portion (73) upper end, described lower installation portion (72) is positioned at connecting portion (73) middle part, on described upper installation portion (71), offer shank via hole (71a), on lower installation portion (72), offer lower needle bar via hole (72a), the upper end of described shank (2) is located in described upper shank via hole (71a), the middle part of shank (2) is located in described lower needle bar via hole (72a).
3. the cloth feeding mechanism of Sewing machines according to claim 2, it is characterized in that, described swing mechanism comprises swing connecting bar seat (8), pressure foot lifting variation connecting rod (9), promote presser feet variation crank (10), presser feet wobble crank (11) and presser feet connecting rod swing axle (12), described presser feet connecting rod swing axle (12) is horizontally set on casing and can on casing, rotates, the middle part of described lifting presser feet variation crank (10) is hinged on casing, described swing connecting bar seat (8) is connected on presser feet connecting rod (7), one end of described pressure foot lifting variation connecting rod (9) is hinged on swing connecting bar seat (8), the other end of pressure foot lifting variation connecting rod (9) is hinged on the lower end that promotes presser feet variation crank (10), the upper end of described lifting presser feet variation crank (10) offers open slot (13), in described open slot (13), slide and be provided with adjusting slider (14), the upper end of described presser feet wobble crank (11) is connected in one end of presser feet connecting rod swing axle (12), the lower end of presser feet wobble crank (11) offers bar shaped slide opening (15), in described bar shaped slide opening (15), be provided with and regulate slide bar (16), one end of described adjusting slide bar (16) is stretched out bar shaped slide opening (15) and is connected mutually with adjusting slider (14), between the other end of described presser feet connecting rod swing axle (12) and feed dog driving shaft (4), be provided with the transmission component one that both are linked.
4. the cloth feeding mechanism of Sewing machines according to claim 3, it is characterized in that, described transmission component one comprises connecting crank (17), long-armed connecting rod (18) and is connected in the feed dog driving shaft crank (19) on feed dog driving shaft (4), one end of described connecting crank (17) is fixed on the end of presser feet connecting rod (7), the other end of described connecting crank (17) is hinged on the upper end of long-armed connecting rod (18), and the lower end of described long-armed connecting rod (18) is hinged on feed dog driving shaft crank (19).
5. the cloth feeding mechanism of Sewing machines according to claim 4, it is characterized in that, described up-down mechanism comprises pressure foot lifting crank (41), power transmission shaft (40), presser feet feeding crank (20), presser feet feeding crank connecting link (21), the presser feet feeding crank support (22) that takes the shape of the letter U tabular, the middle part of described presser feet feeding crank support (22) is hinged on casing, described presser feet feeding crank (20) is L-shaped tabular, the middle part of described presser feet feeding crank (20), the both ends of presser feet feeding crank connecting link (21), the upper end three of presser feet connecting rod (7) connecting portion (73) is hinged, the upper end of described presser feet feeding crank (20) is hinged on one end of presser feet feeding crank connecting link (21), one end of the other end of described presser feet feeding crank connecting link (21) and pressure foot lifting crank (41) is hinged, the other end of described pressure foot lifting crank (41) is link, described link is connected in when one end of power transmission shaft (40) and power transmission shaft (40) rotate and can drives pressure foot lifting crank (41) to swing around its link, described power transmission shaft (40) is rotationally connected on casing, between described power transmission shaft (40) and main shaft (1), be provided with the transmission component two that main shaft (1) rotational drives power transmission shaft (40) to rotate.
6. the cloth feeding mechanism of Sewing machines according to claim 5, it is characterized in that, described transmission component two comprises power transmission shaft crank (23), curved boom connecting rod (24), work feed eccentric wheel (25), swing seat (26), regulating shaft (27) moves up and down, regulating shaft crank (28), work feed connecting rod (29), described swing seat (26) takes the shape of the letter U tabular, the described regulating shaft that moves up and down (27) rotates and arranges on casing, described regulating shaft crank (28) is connected in one end of the regulating shaft that moves up and down (27), upper the offer pin shaft hole one (30) parallel with the regulating shaft that moves up and down (27) of described regulating shaft crank (28), there is pin shaft hole two (31) at the middle part of described swing seat (26), described pin shaft hole one (30) and described pin shaft hole two (31) concentrics, in pin shaft hole one (30) and pin shaft hole two (31), be inserted with bearing pin (32), described work feed eccentric wheel (25) is set on machine spindle (1), one end of described work feed connecting rod (29) is socketed on work feed eccentric wheel (25), described power transmission shaft crank (23) is connected in power transmission shaft (40) end, one end of described curved boom connecting rod (24) is hinged on power transmission shaft crank (23), the other end of described curved boom connecting rod (24), the both ends of the other end of work feed connecting rod (29) and swing seat (26) are hinged.
7. the cloth feeding mechanism of Sewing machines according to claim 6, it is characterized in that, the cloth feeding mechanism of this Sewing machines also comprises adjusting bidding quotation (33), adjustment screw (34), described adjustment screw (34) is fixed on the regulating shaft that moves up and down (27), on described casing, rotate and be provided with an adjusting rod (35), one end of described adjusting rod (35) is stretched out casing and is connected mutually with regulating bidding quotation (33), the other end of described adjusting rod (35) is positioned at casing and has tabular cam part (351), described adjustment screw (34) is resisted against the top edge of cam part (351) and in the time regulating bidding quotation (33) to rotate counterclockwise, can lifts adjustment screw (34) and drives the regulating shaft (27) that moves up and down to rotate.
8. the cloth feeding mechanism of Sewing machines according to claim 7, it is characterized in that, on the described regulating shaft that moves up and down (27), be also fixed with lock-screw (36), on described casing, rotate and be provided with check lock lever (37), one end of described check lock lever (37) is stretched out casing and is connected with locking bidding quotation (38), and the other end of described check lock lever (37) is positioned at casing and has tabular tight lock part (371).
9. according to the cloth feeding mechanism of the Sewing machines described in any one in claim 1 to 8, it is characterized in that, on described interior presser feet (6), offer the eedle via hole (39) passing for eedle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320894528.9U CN203668637U (en) | 2013-12-31 | 2013-12-31 | Cloth conveying mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320894528.9U CN203668637U (en) | 2013-12-31 | 2013-12-31 | Cloth conveying mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203668637U true CN203668637U (en) | 2014-06-25 |
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ID=50964953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320894528.9U Withdrawn - After Issue CN203668637U (en) | 2013-12-31 | 2013-12-31 | Cloth conveying mechanism of sewing machine |
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| Country | Link |
|---|---|
| CN (1) | CN203668637U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103668797A (en) * | 2013-12-31 | 2014-03-26 | 浙江宝石机电股份有限公司 | Cloth feeding mechanism for sewing machine |
| CN105887348A (en) * | 2016-06-23 | 2016-08-24 | 钟治超 | Feeding mechanism of sewing machine |
| CN107761258A (en) * | 2017-12-05 | 2018-03-06 | 浙江中捷缝纫科技有限公司 | A kind of work feed governor motion of sewing machine |
| CN107956047A (en) * | 2017-12-29 | 2018-04-24 | 杰克缝纫机股份有限公司 | A kind of sewing machine |
-
2013
- 2013-12-31 CN CN201320894528.9U patent/CN203668637U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103668797A (en) * | 2013-12-31 | 2014-03-26 | 浙江宝石机电股份有限公司 | Cloth feeding mechanism for sewing machine |
| CN103668797B (en) * | 2013-12-31 | 2015-09-02 | 浙江宝石机电股份有限公司 | A kind of cloth feeding mechanism of Sewing machines |
| CN105887348A (en) * | 2016-06-23 | 2016-08-24 | 钟治超 | Feeding mechanism of sewing machine |
| CN107761258A (en) * | 2017-12-05 | 2018-03-06 | 浙江中捷缝纫科技有限公司 | A kind of work feed governor motion of sewing machine |
| CN107761258B (en) * | 2017-12-05 | 2024-02-06 | 浙江中捷缝纫科技有限公司 | Cloth feeding adjusting mechanism of sewing machine |
| CN107956047A (en) * | 2017-12-29 | 2018-04-24 | 杰克缝纫机股份有限公司 | A kind of sewing machine |
| CN107956047B (en) * | 2017-12-29 | 2020-07-28 | 杰克缝纫机股份有限公司 | Sewing machine |
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Effective date of registration: 20151204 Address after: Taizhou City, Zhejiang province 318000 Jiaojiang Xiachen street, Airport Road No. 1 Patentee after: ZHEJIANG GEMSY MECHANICAL & ELECTRICAL CO., LTD Address before: 318000, No. 638, East Ring Road, Taizhou Economic Development Zone, Jiaojiang District, Zhejiang, Taizhou Patentee before: Zhejiang Gemsy Mechanical and Electrical Co., Ltd. |
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Granted publication date: 20140625 Effective date of abandoning: 20150902 |
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| AV01 | Patent right actively abandoned |