Summary of the invention
For the complex structure that overcomes the auxiliary mop mechanism of existing sewing machine and manufacturing and installation specification high price costliness are unfavorable for the deficiency promoted, the invention provides a kind of simple in structure, guarantee sewing product quality, the auxiliary mop mechanism of Sewing machines economical and practical, that be beneficial to popularization.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of Sewing machines is assisted mop mechanism, comprise pedestal, swing mechanism, one-directional rotation mechanism that connects with main frame and the governor motion that connects with main frame, its design feature is: the main frame line shaft is given transmission of power connecting rod and is taken turns Intraabdominal rotation lock part with the compress that connecting rod is connected as one by the wobble component at axle in the pedestal and two ends thereof, make described connecting rod and rotation lock part reciprocating, cause being pressed in the compress wheel one-directional rotation intermittently on the cloth, satisfy cloth this technological requirement of can only folk prescription marching forward.Described compress wheel connects with the lifting of this compress wheel and the depression bar of pressure regulating mechanism by the support that connects with it.Like this, can need determine whether the work of compress wheel according to the number of plies (thickness) of cloth, further determine landing again or mention the compress wheel, can also suitably regulate the pressure of depression bar, the feeding requirement of thick material, thick material chain seam machine in reaching according to work feed speed to the compress wheel.
Described compress wheel one-directional rotation mechanism is by cloth wheel and Intraabdominal rotation lock assembly thereof and the wheel rotating shaft of play cloth and cloth wheel long stent down and compress wheel connecting rod connects or cooperation forms.Wherein, the cloth wheel long stent that is enclosed within down in the rotating shaft of cloth wheel is the support member of following cloth wheel; Being enclosed within down compress wheel connecting rod in the rotating shaft of cloth wheel and the rotation lock sheet that is connected as one with it is power transfer assembly.
Described cloth is down taken turns Intraabdominal rotation lock assembly and is made of movingly little spring in rotation lock sheet and the boss side surfaces hole thereof and the rotation lock roller between the boss side surfaces.
Described rotation lock sheet is that a positive middle part is annular and the hexahedron that encircles three radiant type boss of outer evenly distribution, and centre bore is arranged in the ring, and screwed hole is arranged outside the ring.The end face of three boss of described rotation lock sheet is on same periphery, a side of each boss is a datum level, another side is the inclined plane, boss side surfaces has spring eye, the datum level and the inclined plane of adjacent lands are connected as one by curved surface, and the angle between the adjacent datum level is 120 degree.
One of described axle head wobble component (left end), wobble crank one end connects with swinging axle, and the other end connects with eccentric ratio; Eccentric ratio connects with the main frame line shaft by eccentric shaft bearing and eccentric wheel.
Two (right-hand members) of described axle head wobble component, wobble crank one end connects with swinging axle, and the other end connects with the swing long connecting rod; The swing long connecting rod other end connects with compress wheel connecting rod.
Described compress wheel governor motion is connected by the pressure adjusting part of depression bar and support thereof and lifting assembly, compress wheel and constitutes.
The support of described depression bar and the formation of lifting assembly are: depression bar passes the vertical hole of lining under cloth wheel load bridge and Intraabdominal big spring and cloth wheel load rod guidance piece and the cloth wheel carrier in proper order, wherein depression bar and cloth wheel load rod guidance piece are connected as one, the eccentric disk of wrench shaft is fixed on the cloth wheel load rod guidance piece, and the other end passes cloth wheel load bridge side cinclides and connects with wall spanner outward.
The formation of described compress wheel pressure adjusting part is: tubular type fine thread cloth wheel is regulated bolt and is bolted in the vertical hole of cloth wheel load bridge, pipe box depression bar and end face is being pressed big spring in it, and the depression bar lower end is inserted in the vertical hole of cloth wheel long stent that is linked together with play cloth wheel by short screw is two-way and fixed.
The described wheel of cloth down wheel hub outer circumference surface is provided with inclination strip tooth.
The invention has the beneficial effects as follows, thick material, thick material even super-thick material chain seam machine during the auxiliary mop mechanism of Sewing machines of the present invention is applicable to, test show the auxiliary mop mechanism of Sewing machines of the present invention can force feed thin layer (as dacron terylene) to 16 layers of denim.Only rely on the feed dog work feed can only send following which floor, above which floor cloth or send motionless or speed slow, levels is asynchronous.Adopt Sewing machines of the present invention to assist mop mechanism, not only levels is synchronous, and each layer cloth not fold, do not misplace.The auxiliary mop mechanism structure of Sewing machines of the present invention is simple, rely on modern technologies and equipment, make and install product of the present invention and can reach, and price is promoted the use of the product quality that product of the present invention will improve apparel industry well below imported product than higher required precision.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structure and the assembly relation schematic diagram of the auxiliary mop mechanism of Sewing machines of the present invention.
Fig. 2 is the auxiliary mop mechanism of a Sewing machines of the present invention assembling moulding stereogram.
Fig. 3 is following cloth wheel and related components connecting relation enlarged drawing thereof shown in Fig. 1 and Fig. 2.
2. times cloth wheels among the figure 3. play cloth wheel rotating shaft, 4. rotation lock sheet, 6 rotation lock rollers, 7. short screw, 8. long spiro nail, 16. the swing long connecting rod, 18. wobble cranks, 19 wobble crank screws, 20. the wobble crank nut, 21. wobble crank pins, 22. swinging axles, 23. the swinging axle bearing, 24. spanners, 25. wrench shafts, 27. cloth wheel long stent, 28. cloth wheel is regulated bolt, lining under the 31. cloth wheel carriers, 32. cloth wheel connecting rod pin, 34. cloth wheel load rod guidance pieces, 36. cloth wheel load bridges, 37. cloth wheel load bridge long spiro nail, 40. pedestals, 41. soket head cap screws, 42. eccentric ratio, 43. eccentric wheel, 45. eccentric shaft bearings, 46. flat shims, 48 compresses wheel connecting rod, 52. cloth wheel connecting rod nut, 53 little springs, 55. big springs.
The specific embodiment
Sewing machines of the present invention is assisted mop mechanism, the one-directional rotation mechanism that comprises the swing mechanism that constitutes by the wobble component that is installed in swinging axle 22 on the pedestal 40 and two ends thereof, constitutes by cloth wheel and Intraabdominal rotation lock assembly thereof down, be the governor motion of the main following cloth wheel that constitutes by depression bar and guide block thereof and big spring, described swing mechanism by compress wheel connecting rod 48 connects with one-directional rotation mechanism, described one-directional rotation mechanism takes turns long stent 27 by cloth and takes turns governor motion with following cloth and connect.Be their concrete structure below.
1. the connecting relation at swinging axle and two ends thereof (swing mechanism).
As depicted in figs. 1 and 2, the swinging axle bearing 23 that is installed on the swinging axle 22 is fixed in the hole at pedestal 40 two ends.Pedestal 40 adopts soket head cap screws 41 to connect (the external connection of arrow c representative) with host machine casing by two holes at trailing flank middle part and two holes of right-hand member.
Swinging axle 22 left ends connect the location with wobble crank 18a top with screw 19.
It is fastening by wobble crank nut 20a and wobble crank pin 21a that wobble crank 18a bottom slotted eye is aimed at 42 times stomidiums of eccentric ratio.
Eccentric wheel 43 is installed in the eccentric ratio 42 upper end eccentric shaft bearings 45, and this eccentric ratio 42 connects (the arrow A representative externally connects) by eccentric wheel 43 and eccentric shaft bearing 45 with the main frame line shaft.
Swinging axle 22 right-hand members and wobble crank 18b right part are located with screw attachment.
It is fastening by wobble crank nut 20b and wobble crank pin 21b that the slotted eye of wobble crank 18b is aimed at the hole of swinging long connecting rod 16 upper ends.
Compress wheel connecting rod 48 (see figure 3) left end hole sequence alignment flat shims 46 and 16 times stomidiums of swing long connecting rod are fastening by cloth wheel connecting rod pin 32 and cloth wheel connecting rod nut 52.
The connecting relation (one-directional rotation mechanism) at 2 times cloth wheel constructions and two ends thereof.
As Fig. 1, shown in Figure 3, rotation lock sheet (4a, 4b) is the hexahedron of a middle part for annular and outer three radiant type boss (the approximate herringbone) that evenly distribute of ring.In this rotation lock sheet middle part ring centre bore is arranged, ring is outer to have three screwed holes, each boss side surfaces that the hole that little spring 53 is installed is arranged.
The end face of three boss is on same cylinder periphery, and a side of each boss is a datum level, and another side is the inclined plane.The datum level and the inclined plane of adjacent lands are connected as one by curved surface, and the angle between the adjacent datum level is 120 degree.
As Fig. 1, shown in Figure 3, following cloth is taken turns 2 formers middle part axis hole (this axis hole is by cloth wheel rotating shaft 3 coverings down in the drawings), and the wheel hub outer circumference surface is provided with inclination strip tooth.Wheel hub inner ring and former side are the abdominal cavities.
Earlier put down rotation lock sheet (4a, 4b) into cloth respectively during installation and take turns abdominal cavity, 2 left and right sides, after little spring 53 is put in the rotation lock sheet boss side surfaces hole, again rotation lock roller (6a, 6b) is placed on respectively on the rotation lock sheet side.
As shown in Figure 3, respective aperture and the side of the centre bore of compress wheel connecting rod 48 and three aperture aligning rotation lock sheet 4a are close to, and three apertures that three long spiro nails 8 in left side pass compress wheel connecting rod 48 are bolted in the corresponding screwed hole of rotation lock sheet 4a.Compress wheel connecting rod 48 and rotation lock sheet 4a are connected as one.
As shown in Figure 1, two clamping plate of cloth wheel long stent 27 stick the left surface of compress wheel connecting rod 48 and the right flank and the Intraabdominal rotation lock sheet 4b thereof of following cloth wheel 2.Three apertures that three long spiro nails 8 in right side pass cloth wheel long stent 27 are bolted in the corresponding screwed hole of rotation lock sheet 4b.
Cloth wheel long stent 27, rotation lock sheet 4b are passed in the rotating shaft 3 of following cloth wheel from right to left, cloth wheel 2, rotation lock sheet 4a and compress are taken turns the centre bore of connecting rod 48 down.Two snap rings are stuck in down in the draw-in groove at cloth wheel rotating shaft 3 two ends.
The described wheel of cloth down (2) Intraabdominal rotation lock assembly is made of movingly little spring (53) in rotation lock sheet (4a, 4b) and the boss side surfaces hole thereof and the rotation lock roller (6a, 6b) between the boss side surfaces.
Following cloth wheel 2 and Intraabdominal rotation lock assembly thereof and the wheel rotating shaft 3 of following cloth and cloth wheel long stent 27 and compress wheel connecting rod 48 are according to determining to require to connect or cooperate to form one-directional rotation mechanism (referring to Fig. 2).
The governor motion of 3 times cloth wheels
As shown in Figure 1, depression bar passes the vertical hole of lining 31 under cloth wheel load bridge 36 and Intraabdominal big spring 55 and cloth wheel load rod guidance piece 34 and the cloth wheel carrier in proper order.Depression bar and cloth wheel load rod guidance piece 34 are connected as one, and the eccentric disk of wrench shaft 25 is fixed on the cloth wheel load rod guidance piece 34, and the other end passes cloth wheel load bridge 36 side cinclides and connects with wall spanner 24 outward, forms the support and the lifting assembly of depression bar.Lining 31 is fixed in cloth wheel load bridge 36 vertical hole inwalls under the cloth wheel carrier.When determining whether under the needs that according to fabric thickness the cloth wheel is drawn cloth, can turn the eccentric disk of spanner 24 by wrench shaft 25 and drive cloth wheel load rod guidance piece 34 and depression bar and will play cloth wheel 2 to drop on the cloth or to mention from cloth.
Tubular type fine thread cloth wheel is regulated bolt 28 and is bolted in that its interior pipe box of cloth wheel load bridge 36 vertical holes depression bar and end face is being pressed big spring 55.The depression bar lower end is inserted in the cloth wheel long stent 27 vertical holes two-way fixing by short screw 7, thereby vertical depression bar and following cloth wheel 2 are linked together.The pressure of big spring 55 passes to down cloth wheel 2 by cloth wheel load rod guidance piece 34 and depression bar.
The otic placode of cloth wheel load bridge 36 and side plate connect (the arrow B representative externally connects) by cloth wheel load bridge long spiro nail 37 with host machine casing.
The course of work of 4 cloth-dragging wheels
That the main frame line shaft drives eccentric wheel 43 rotation-drives eccentric ratios is 42 reciprocating-drive wobble crank 18a swing-drive swinging axle 22 left-right rotation-drives wobble crank 18b reciprocating motion-drives swing long connecting rod 16 swing-drive compress wheel connecting rod 48 and rotation lock sheet 4a around following cloth take turns rotating shaft 3 rotate up and down-cause the following cloth that is pressed on the cloth take turns 2 intermittence one-directional rotation-following cloth take turns 2 inclination strip teeth and spur the cloth folk prescription to mobile.
Following cloth wheel is also referred to as compress wheel or cloth-dragging wheel.
5. play cloth to take turns 2 one-directional rotation principles
Under state shown in Figure 3, (compress wheel connecting rod 48 lifts with swing long connecting rod 16 union ends when compress wheel connecting rod 48 clockwise rotates around the rotating shaft 3 of following cloth wheel, referring to Fig. 2, Fig. 3) time, the rotation lock sheet 4a that is connected as one with compress wheel connecting rod 48 also clockwise rotates, the rotation lock roller 6a that is equivalent to be positioned at rotation lock sheet 4a side moves to rotation lock sheet boss side surfaces aperture counterclockwise, little spring 53 is a compressive state, the periphery of described rotation lock roller 6a and following cloth are taken turns between 2 inner rings gapped, do not rub, following cloth wheel 2 does not rotate.
Under state shown in Figure 3, when compress wheel connecting rod 48 rotates counterclockwise (compress wheel connecting rod 48 and swing long connecting rod 16 union ends whereabouts around the rotating shaft 3 of following cloth wheel, referring to Fig. 2, in the time of Fig. 3), the rotation lock sheet 4a that is connected as one with compress wheel connecting rod 48 also rotates counterclockwise, the rotation lock roller 6a that is equivalent to be positioned at rotation lock sheet 4a side moves to rotation lock sheet boss datum level clockwise, little spring 53 is a stretched condition, the periphery of described rotation lock roller 6a and following cloth are taken turns between 2 inner rings very close to each other, come in contact friction between the two, following cloth wheel 2 is along with rotation lock sheet 4a rotates counterclockwise.
When briefly compress wheel connecting rod 48 and rotation lock sheet 4a clockwise rotated, rotation lock roller 6a did not block (not locking) inner ring of cloth wheel 2 down, and following cloth wheel 2 does not rotate; When compress wheel connecting rod 48 and rotation lock sheet 4a rotated counterclockwise, rotation lock roller 6a blocked (locking) inner ring of cloth wheel 2 down, and following cloth wheel 2 is along with rotation lock sheet 4a rotates counterclockwise.
Play intermittently one-directional rotation of cloth wheel 2 in sum.