CN105274738A - Cloth feeding mechanism - Google Patents
Cloth feeding mechanism Download PDFInfo
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- CN105274738A CN105274738A CN201510856597.4A CN201510856597A CN105274738A CN 105274738 A CN105274738 A CN 105274738A CN 201510856597 A CN201510856597 A CN 201510856597A CN 105274738 A CN105274738 A CN 105274738A
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Abstract
The invention provides a cloth feeding mechanism, and belongs to the technical field of sewing machines. The problems that in the prior art, an up and down comprehensive cloth feeding mechanism is complex and high in manufacturing cost are solved. The cloth feeding mechanism comprises a main shaft, a needle rod, a pressing rod and feed dog drive shafts used for driving a feed dog to move, and the lower end of the pressing rod is fixedly connected with an outer pressing foot; the cloth feeding mechanism further comprises an inner pressing foot and a pressing foot connecting rod, the inner pressing foot is fixedly connected to the lower end of the pressing foot connecting rod, the needle rod is connected to the pressing foot connecting rod and can slide up and down on the pressing foot connecting rod, the needle rod is fixed in the radial direction relative to the pressing foot connecting rod, a front and back swing mechanism capable of driving the pressing foot connecting rod to swing forwards and backwards when the main shaft rotates is arranged between the pressing foot connecting rod and the main shaft, and an up and down moving mechanism capable of driving the pressing foot connecting rod to move up and down when the main shaft rotates is further arranged between the pressing foot connecting rod and the main shaft. The cloth feeding mechanism has the advantages of being simple in structure, low in manufacturing cost and the like.
Description
Technical field
The invention belongs to sewing machine technique field, relate to a kind of cloth feeding mechanism.
Background technology
One or more sewing thread used by Sewing machines, and sewing is formed one or more stitchings, makes the machine that one or more layers sewing interweaves or unites by a seam.
Existing comprehensive work feed thick material machine is comparatively large with upper and lower work feed thick material machine structural difference, and the equipment therefore simultaneously produced needed for two kinds of products is more, brings very large economic pressures to producer, and therefore indivedual producer often can only produce a kind of product.Namely enablely produce the Sewing machines of two kinds of work feed modes simultaneously, but due to the comprehensive work feed of tradition thick material machine and upper and lower work feed thick material machine architectural difference comparatively greatly, part is more, makes comprehensive work feed thick material machine manufacturing cost very high, greatly reduces the market competitiveness.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose and a kind ofly can realize comprehensive work feed and structure is simple, the cloth feeding mechanism of low cost of manufacture up and down.
Object of the present invention realizes by following technical proposal: a kind of cloth feeding mechanism, 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 also can slides up and down on presser feet connecting rod, this shank relative presser feet connecting rod radial direction is fixing, the swing mechanism of presser feet connecting rod swing can be driven when being provided with main axis between described presser feet connecting rod and main shaft, the up-down mechanism that presser feet connecting rod can be driven to move up and down when being also provided with main axis between described presser feet connecting rod and main shaft.
The principle that this cloth feeding mechanism realizes comprehensive work feed is 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, rotates by driven by motor.During main axis, 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 simultaneously, make the whole movement locus of presser feet connecting rod be elliptical path under the effect of up-down mechanism.And fix because shank is radial on presser feet connecting rod, interior presser feet is connected in presser feet connecting rod lower end, and therefore eedle, interior presser feet also can carry out front and back, 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 less, and just achieve the object of comprehensive work feed up and down, after improvement, structure is simple, has the advantage of low cost of manufacture.
In above-mentioned cloth feeding mechanism, described presser feet connecting rod comprises installation portion, lower installation portion and bar shaped tabular and the connecting portion of vertical direction setting, described upper installation portion and lower installation portion are all positioned at connecting portion side, described upper installation position is in connecting portion upper end, described lower installation position is in the middle part of connecting portion, described upper installation portion offers shank via hole, lower installation portion offers 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 above-mentioned cloth feeding mechanism, 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 also can rotates on casing, 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 promoting presser feet variation crank, the upper end of described lifting presser feet variation crank offers open slot, slide in described open slot 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, adjustment slide bar is provided with in described bar shaped slide opening, one end of described adjustment slide bar is stretched out bar shaped slide opening and is connected mutually with adjusting slider, the transmission component one making both link is provided with between the other end of described presser feet connecting rod swing axle and feed dog driving shaft.
In above-mentioned cloth feeding mechanism, 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 above-mentioned cloth feeding mechanism, 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 of the tabular that takes the shape of the letter U, the middle part of described presser feet feeding crank support is hinged on casing, the L-shaped tabular of described presser feet feeding crank, 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 link joint feature is hinged, the upper end thereof of described presser feet feeding crank is in one end of presser feet feeding crank connecting link, the described other end of 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 be connected in one end of power transmission shaft and drive axis time pressure foot lifting crank can be driven to swing around its link, described drive axis connects on casing, the transmission component two that main axis can drive drive axis is provided with between described power transmission shaft and main shaft.
In above-mentioned cloth feeding mechanism, described transmission component two comprises power transmission shaft crank, curved boom connecting rod, work feed eccentric wheel, swing seat, move up and down regulating shaft, 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 the one end of the regulating shaft that moves up and down, parallelly with the regulating shaft that moves up and down on described regulating shaft crank offer pin shaft hole one, 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 concentric, bearing pin is inserted with in pin shaft hole one and pin shaft hole two, 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 hinged.
In above-mentioned cloth feeding mechanism, this cloth feeding mechanism also comprises adjustment bidding quotation, adjustment screw, described adjustment screw is fixed on and moves up and down on regulating shaft, described casing rotates and is provided with an adjusting rod, one end of described adjusting rod is stretched out casing and is connected mutually with adjustment bidding quotation, the other end of described adjusting rod is positioned at casing and has the cam part of tabular, described adjustment screw be resisted against cam part top edge and regulate bidding quotation rotate counterclockwise time can lift adjustment screw drive move up and down regulating shaft rotate.Outer presser feet is with interior presser feet motion process for carry out alternatively up and down, and design is herein for regulating outer presser feet with the alternately amount of interior presser feet motion process.Regulate numerical value bidding quotation having and indicates this to replace amount size, 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 digital increase when being rotated counterclockwise, presser feet alternately measures increase.When sewing without gradient fabric, the presser feet amount of replacing is turned down, and machine stitching is smooth-going, and noise is less.When Sewing machines fabric have height stitch time, the presser feet amount of replacing tuned up, maximum alternately amount can be adjusted to 5.5mm.
In above-mentioned cloth feeding mechanism, the described regulating shaft that moves up and down also is fixed with lock-screw, described casing rotates and is 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 the tight lock part of tabular.When lock-screw is resisted against on tight lock part, the regulating shaft self that moves up and down when Sewing machines can be avoided to run up produces and rotates, and ensures alternately to measure the accuracy regulated.
In above-mentioned cloth feeding mechanism, described interior presser feet offers the eedle via hole passed for eedle.
Compared with prior art, this cloth feeding mechanism has the following advantages:
1, this cloth feeding mechanism just carries out less improvement, optimal design based on descending traditionally on the basis of compound feed mechanism, with less cost, just achieves comprehensive work feed function up and down, has stronger practicality.
2, this cloth feeding mechanism China and foreign countries presser feet with interior presser feet motion process for carry out alternatively up and down, and alternately amount for adjustable, fabric have height stitch time, the presser feet amount of replacing can be tuned up, thus guarantee has good sewing quality.
3, this cloth feeding mechanism also has the advantages such as structure is simple, stable, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is perspective view of the present invention.
Fig. 2 is the detonation configuration schematic diagram of up-down mechanism of the present invention.
Fig. 3 is partial enlarged drawing of the present invention.
Fig. 4 is the partial exploded view of swing mechanism of the present invention.
Fig. 5 is the perspective view of swing mechanism of the present invention.
Fig. 6 is the detonation configuration schematic diagram of transmission component two of the present invention.
Detailed description of the invention
This cloth feeding mechanism comprises main shaft 1, shank 2, depression bar 3, interior presser feet 6, presser feet connecting rod 7 and for parts such as the feed dog driving shafts 4 that drives feed dog to move.
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 end, interior presser feet 6 offers the eedle via hole 39 passed for eedle.Presser feet connecting rod 7 comprises installation portion 71, the connecting portion 73 that lower installation portion 72 and bar shaped tabular and vertical direction are arranged, upper installation portion 71 and lower installation portion 72 are all positioned at connecting portion 73 side, upper installation portion 71 is positioned at connecting portion 73 upper end, lower installation portion 72 is positioned in the middle part of connecting portion 73, upper installation portion 71 offers shank via hole 72a, lower installation portion 72 offers 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, shank 2 of the present invention is identical with tradition three synchronous Sewing machiness with the syndeton between main shaft 1, shank 2 is slided up and down on presser feet connecting rod 7 by main shaft 1 kinetic energy, presser feet connecting rod 7 radial direction is fixing relatively for shank 2, the swing mechanism that can drive presser feet connecting rod 7 swing when main shaft 1 rotates is provided with between presser feet connecting rod 7 and main shaft 1, the up-down mechanism that presser feet connecting rod 7 can be driven to move up and down when main shaft 1 rotates also is provided with between presser feet connecting rod 7 and main shaft 1.
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 around its axis rotation on casing, the middle part promoting 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 promoting presser feet variation crank 10, the upper end promoting presser feet variation crank 10 offers open slot 13, slide in open slot 13 and be 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, be provided with in bar shaped slide opening 15 and regulate slide bar 16, one end of slide bar 16 is regulated to stretch out bar shaped slide opening 15 and be connected mutually with adjusting slider 14, the transmission component one making both link is provided with between the other end of presser feet connecting rod swing axle 12 and feed dog driving shaft 4.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 of the tabular that takes the shape of the letter U, the middle part of presser feet feeding crank support 22 is hinged on casing, the L-shaped tabular of presser feet feeding crank 20, 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 portion 73 is hinged, the upper end thereof of presser feet feeding crank 20 is in 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 be connected in one end of power transmission shaft 40 and power transmission shaft 40 rotates time pressure foot lifting crank 41 can be driven to swing around its link, power transmission shaft 40 is rotationally connected on casing, the transmission component two that main shaft 1 rotational drives power transmission shaft 40 to rotate is provided with between power transmission shaft 40 and main shaft 1, 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, move up and down regulating shaft 27, 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 the one end of the regulating shaft 27 that moves up and down, parallelly with the regulating shaft 27 that moves up and down on regulating shaft crank 28 offer pin shaft hole 1, 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 concentric, bearing pin 32 is inserted with in pin shaft hole 1 and pin shaft hole 2 31, 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 end, 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 other end of work feed connecting rod 29 and the both ends of swing seat 26 hinged.
The outer presser feet 5 of this work-feeding mean of sewing machine with interior presser feet 6 motion process for carry out alternatively up and down, alternately amount is for adjustable, in order to the alternately amount in outer presser feet 5 and interior presser feet 6 motion process can be regulated, this cloth feeding mechanism also comprises adjustment bidding quotation 33, adjustment screw 34, adjustment screw 34 is fixed on and moves up and down on regulating shaft 27, casing rotates and is provided with an adjusting rod 35, one end of adjusting rod 35 is stretched out casing and is connected mutually with adjustment bidding quotation 33, the other end of adjusting rod 35 is positioned at casing and has the cam part 351 of tabular, adjustment screw 34 is resisted against the top edge of cam part 351 and can lifts adjustment screw 34 when regulating bidding quotation 33 to rotate counterclockwise and drive the regulating shaft 27 that moves up and down to rotate.
In order to realize locking function in alternately amount adjustment after completing, when preventing from running up, presser feet alternately measures change, as shown in Figure 1, also be fixed with lock-screw 36 moving up and down on regulating shaft 27, casing rotates and is 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 the tight lock part 371 of tabular.When lock-screw 36 is resisted against on tight lock part 371, the regulating shaft 27 self that moves up and down when Sewing machines can be avoided to run up produces and rotates, and ensures alternately to measure the accuracy regulated.
The principle that this cloth feeding mechanism realizes comprehensive work feed is 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 end, and main shaft 1 is connected with the motor of Sewing machines, rotates by driven by motor.Main shaft 1 can drive shank 2 to move up and down, and the syndeton between shank 2 with main shaft 1 is identical with traditional Sewing machines.When main shaft 1 rotates, the work feed eccentric wheel 25 on main shaft 1 is driven to rotate, because work feed connecting rod 29 one end is 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 end, and swing seat 26 and work feed eccentric wheel 25 are hinged, swing seat 26 are swung, drives 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 being connected in power transmission shaft 40 one end swings back and forth around power transmission shaft 40.Pressure foot lifting crank 41 is swung and is swung on casing by the zone of action dynamic pressure pin feeding crank support 22 of presser feet feeding crank connecting link 21, presser feet feeding crank 20 successively, because the upper end thereof of presser feet connecting rod 7 is on presser feet feeding crank support 22, therefore presser feet connecting rod 7 can be driven to move up and down when presser feet feeding crank support 22 swings, 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 present invention between feed dog driving shaft 4 with main shaft 1 is identical with conventional sewing machine.When feed dog driving shaft 4 carrys out back rotation, carry out back rotation by the zone of action dynamic pressure pin connecting rod swing axle 12 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 being connected in its one end to swing back and forth around presser feet connecting rod swing axle 12, then lifting presser feet variation crank 10 is driven to rotate in the middle part of it, move around before and after the lower end of lifting presser feet variation crank 10, now just drive before and after swing connecting bar seat 8 by pressure foot lifting variation connecting rod 9 and move around.And swing connecting bar seat 8 is connected on presser feet connecting rod 7, the front and back therefore just achieving 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 is fixed by radial direction on presser feet connecting rod 7, therefore the front and back of presser feet connecting rod 7 move around make interior presser feet 6, be connected in the eedle of shank 2 lower end also before and after move around.
In sum, mechanism is when 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 less, and just achieve the object of comprehensive work feed up and down, after improvement, structure is simple, has the advantage of low cost of manufacture.
Claims (9)
1. a cloth feeding mechanism, 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) and above also can slides up and down on presser feet connecting rod (7), presser feet connecting rod (7) radial direction is fixing relatively for this shank (2), the swing mechanism that can drive presser feet connecting rod (7) swing when main shaft (1) rotates is provided with between described presser feet connecting rod (7) and main shaft (1), the up-down mechanism that presser feet connecting rod (7) can be driven to move up and down when main shaft (1) rotates also is provided with between described presser feet connecting rod (7) and main shaft (1).
2. cloth feeding mechanism according to claim 1, it is characterized in that, described presser feet connecting rod (7) comprises installation portion (71), the connecting portion (73) that lower installation portion (72) and bar shaped tabular and vertical direction are arranged, described upper installation portion (71) and lower installation portion (72) are all positioned at connecting portion (73) side, 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, described upper installation portion (71) offers shank via hole (71a), lower installation portion (72) offers 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. cloth feeding mechanism 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 also can rotates on casing, 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 promoting presser feet variation crank (10), the upper end of described lifting presser feet variation crank (10) offers open slot (13), slide in described open slot (13) 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), be provided with in described bar shaped slide opening (15) and regulate slide bar (16), one end of described adjustment slide bar (16) is stretched out bar shaped slide opening (15) and is connected mutually with adjusting slider (14), the transmission component one making both link is provided with between the other end of described presser feet connecting rod swing axle (12) and feed dog driving shaft (4).
4. cloth feeding mechanism according to claim 3, it is characterized in that, the feed dog driving shaft crank (19) that described transmission component one comprises connecting crank (17), long-armed connecting rod (18) and is connected 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. cloth feeding mechanism 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), presser feet feeding crank support (22) of the tabular that takes the shape of the letter U, the middle part of described presser feet feeding crank support (22) is hinged on casing, the L-shaped tabular of described presser feet feeding crank (20), 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 thereof of described presser feet feeding crank (20) is in one end of presser feet feeding crank connecting link (21), the other end of described presser feet feeding crank connecting link (21) and one end of pressure foot lifting crank (41) are hinged, the other end of described pressure foot lifting crank (41) is link, described link be connected in one end of power transmission shaft (40) and power transmission shaft (40) rotates time pressure foot lifting crank (41) can be driven to swing around its link, described power transmission shaft (40) is rotationally connected on casing, the transmission component two that main shaft (1) rotational drives power transmission shaft (40) to rotate is provided with between described power transmission shaft (40) and main shaft (1).
6. cloth feeding mechanism 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), move up and down regulating shaft (27), regulating shaft crank (28), work feed connecting rod (29), described swing seat (26) takes the shape of the letter U tabular, the rotation of the described regulating shaft that moves up and down (27) arranges on casing, described regulating shaft crank (28) is connected in one end of the regulating shaft that moves up and down (27), described regulating shaft crank (28) is above parallel with the regulating shaft that moves up and down (27) offers pin shaft hole one (30), 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) concentric, bearing pin (32) is inserted with in pin shaft hole one (30) and pin shaft hole two (31), 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 other end of work feed connecting rod (29) and the both ends of swing seat (26) hinged.
7. cloth feeding mechanism according to claim 6, it is characterized in that, this cloth feeding mechanism also comprises adjustment bidding quotation (33), adjustment screw (34), described adjustment screw (34) is fixed on the regulating shaft that moves up and down (27), described casing rotates and is provided with an adjusting rod (35), one end of described adjusting rod (35) is stretched out casing and is connected mutually with adjustment bidding quotation (33), the other end of described adjusting rod (35) is positioned at casing and has the cam part (351) of tabular, described adjustment screw (34) be resisted against cam part (351) top edge and regulate bidding quotation (33) rotate counterclockwise time can lift adjustment screw (34) drive move up and down regulating shaft (27) rotate.
8. cloth feeding mechanism according to claim 7, it is characterized in that, the described regulating shaft that moves up and down (27) is also fixed with lock-screw (36), described casing rotates and is 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 the tight lock part (371) of tabular.
9. according to the cloth feeding mechanism in claim 1 to 8 described in any one, it is characterized in that, described interior presser feet (6) offers the eedle via hole (39) passed for eedle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510856597.4A CN105274738A (en) | 2015-11-21 | 2015-11-21 | Cloth feeding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510856597.4A CN105274738A (en) | 2015-11-21 | 2015-11-21 | Cloth feeding mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN105274738A true CN105274738A (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510856597.4A Pending CN105274738A (en) | 2015-11-21 | 2015-11-21 | Cloth feeding mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107227560A (en) * | 2017-08-07 | 2017-10-03 | 台州市三本缝制设备有限公司 | A kind of new microcephaly's sewing machine |
| CN109355815A (en) * | 2018-12-20 | 2019-02-19 | 安徽杰羽制鞋机械科技有限公司 | A kind of synchronous feeding mechanism of thickness material machine |
| CN110983639A (en) * | 2019-12-30 | 2020-04-10 | 拓卡奔马机电科技有限公司 | Cloth feeding device, cloth feeding device control method and wrist bending machine |
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2015
- 2015-11-21 CN CN201510856597.4A patent/CN105274738A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107227560A (en) * | 2017-08-07 | 2017-10-03 | 台州市三本缝制设备有限公司 | A kind of new microcephaly's sewing machine |
| CN107227560B (en) * | 2017-08-07 | 2019-11-01 | 台州市三本缝制设备有限公司 | A kind of novel microcephaly's sewing machine |
| CN109355815A (en) * | 2018-12-20 | 2019-02-19 | 安徽杰羽制鞋机械科技有限公司 | A kind of synchronous feeding mechanism of thickness material machine |
| CN110983639A (en) * | 2019-12-30 | 2020-04-10 | 拓卡奔马机电科技有限公司 | Cloth feeding device, cloth feeding device control method and wrist bending machine |
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