CN103046239B - Cloth feeding device of sewing machine - Google Patents
Cloth feeding device of sewing machine Download PDFInfo
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- CN103046239B CN103046239B CN201110311513.0A CN201110311513A CN103046239B CN 103046239 B CN103046239 B CN 103046239B CN 201110311513 A CN201110311513 A CN 201110311513A CN 103046239 B CN103046239 B CN 103046239B
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- cloth feeding
- connecting rod
- feeding device
- rotating shaft
- upper cloth
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Abstract
The invention discloses a cloth feeding device of a sewing machine. The cloth feeding device comprises a main transmission mechanism, a vertical direction transmission mechanism, a transverse direction transmission mechanism and a cloth feeding mechanism. The main transmission mechanism comprises a rotating shaft connected with a machine body in penetrating mode. The vertical direction transmission mechanism comprises a swing arm and a connection rod group. The swing arm is provided with a location end and a free end. The location end is connected with the machine body in pivot mode, and the connection rod group is connected with the free end. The transverse direction transmission mechanism comprises a guide piece, a horizontal moving piece and a connection rod assembly. The guide piece is fixed on the machine body and is provided with a through hole for the horizontal moving piece to be connected in sliding mode, and the connection rod assembly is connected with the horizontal moving piece. The cloth feeding mechanism comprises a press rod. One end of the press rod is connected with the free end and is driven to generate vertical movement, and the middle section is connected with the horizontal moving piece in sliding mode and driven to simultaneously generate transverse movement. Therefore, the cloth feeding device can increase moving distance of an object to be sewn in the horizontal state and effectively transports the object to be sewn.
Description
Technical field
The present invention about a kind of cloth-feeding device, espespecially a kind of upper cloth feeding device of Sewing machines.
Background technology
The upper cloth feeding device of existing Sewing machines, as No. 07-328258, Japanese Patent Laid-Open disclose, it mainly comprises the bearings platform being fixed on body, a circular port is offered in the side of bearings platform, and be equiped with in this circular port can a cylindrical bearing of pivotable therein, a perforation is offered in the radial direction of cylindrical bearing, separately offer at the corresponding aforementioned punch position of bearings platform the elongate slot running through circular port respectively, upper elongate slot is sequentially penetrated with a pressure bar, perforation and lower elongate slot, and connect a work feed presser feet top in the bottom of pressure bar and be then connected with a lifting and swinging mechanism.Order about pressure bar through lifting and swinging mechanism during use to move up and down together with work feed presser feet, coordinate simultaneously cylindrical bearing can in the circular port of bearings platform rotary oscillation, and enable pressure bar and work feed presser feet move forward and backward to transfer object to be sewn simultaneously.
But, the upper cloth feeding device of known Sewing machines, because the lower surface of work feed presser feet is on the one hand skewed with object to be sewn, carry out elliptical motion on the other hand, therefore, under the state that relative object to be sewn is level below work feed presser feet, be of short duration with the time of all pressing object to be sewn of the teeth portion of work feed presser feet.Therefore the strength of its cloth-feeding device conveyance object to be sewn is faint, and stroke is little, therefore not easily efficient and positively transport object to be sewn, and the defect problem having sewing quality to reduce.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is the upper cloth feeding device providing a kind of Sewing machines, it is by the associating start by above-below direction transmission mechanism and fore-and-aft direction transmission mechanism, the transfer distance of cloth feeding mechanism growth to the level of object to be sewn can be made, and efficiently object to be sewn is transported.
For solving the problems of the technologies described above, technical scheme of the present invention is achieved in that a kind of upper cloth feeding device of Sewing machines, described Sewing machines has a body, this upper cloth feeding device comprises a main drive gear, an above-below direction transmission mechanism, a fore-and-aft direction transmission mechanism and a cloth feeding mechanism, this main drive gear comprises a rotating shaft, body described in this rotating shaft cross-under; This above-below direction transmission mechanism connects this rotating shaft and is driven, and this above-below direction transmission mechanism comprises a swing arm and a connection rod set, and this swing arm has a positioning end and a free end, and this positioning end is articulated in described body, and one end of this connection rod set connects this free end; This fore-and-aft direction transmission mechanism connects this rotating shaft and is driven, this fore-and-aft direction transmission mechanism comprises a guide member, a horizontal displacement member and a link assembly, this guide member is fixed on described body and is provided with for the sliding perforation of this horizontal displacement member, and one end of this link assembly connects this horizontal displacement member; This cloth feeding mechanism comprises a pressure bar, and one end of this pressure bar is connected to this free end of this swing arm and is driven and produce and move up and down, and the stage casing of this pressure bar is slipped this horizontal displacement member and driven and produce movable simultaneously.
In order to reach above-mentioned object, the invention provides the upper cloth feeding device of another kind of Sewing machines, described Sewing machines has a body, this upper cloth feeding device comprises a main drive gear, an above-below direction transmission mechanism, a fore-and-aft direction transmission mechanism and a cloth feeding mechanism, this main drive gear comprises a rotating shaft, body described in this rotating shaft cross-under; This above-below direction transmission mechanism comprises one first power transmission shaft, a first connecting rod group, a swing arm and a second connecting rod group, the two ends of this first connecting rod group connect this rotating shaft and this first power transmission shaft respectively, this swing arm has a positioning end and a free end, this positioning end is articulated in described body, and the two ends of this second connecting rod group connect this free end of this first power transmission shaft and this swing arm respectively; This fore-and-aft direction transmission mechanism comprises a second driving shaft, a first connecting rod assembly, a guide member, a horizontal displacement member and a second connecting rod assembly, the two ends of this first connecting rod assembly connect this rotating shaft and this second driving shaft respectively, this guide member is fixed on described body and is provided with for the sliding perforation of this horizontal displacement member, and the two ends of this second connecting rod assembly connect this second driving shaft and this horizontal displacement member respectively; This cloth feeding mechanism comprises a pressure bar, and one end of this pressure bar is connected to this free end of this swing arm and is driven and produce and move up and down, and the stage casing of this pressure bar is slipped this horizontal displacement member and driven and produce movable simultaneously.
The technique effect that the present invention reaches is as follows: be configured in main drive gear by seam apart from guiding mechanism, and make the adjustment of user and operate more convenient simple and easy.The composition structure of single unit system is simple, and the power transmission between each assembly is stablized, and therefore can reduce the cost of maintenance process simulation.
Accompanying drawing explanation
Fig. 1 is upper cloth feeding device of the present invention combination schematic diagram.
Fig. 2 is spindle drive exploded view of the present invention.
Fig. 3 is above-below direction transmission mechanism exploded view of the present invention.
Fig. 4 is fore-and-aft direction transmission mechanism exploded view of the present invention.
Fig. 5 is cloth feeding mechanism exploded view of the present invention.
Fig. 6 is that seam of the present invention is apart from guiding mechanism exploded view.
Fig. 7 is that the present invention is applied to Sewing machines using state figure.
Fig. 8 is cloth feeding mechanism of the present invention and lower cloth-feeding device movement locus figure.
[primary clustering symbol description]
10 ... main drive gear
11 ... rotating shaft 12 ... first eccentric wheel
13 ... second eccentric wheel 14 ... handwheel
20 ... above-below direction transmission mechanism
21 ... first power transmission shaft 22 ... first connecting rod group
221 ... first connecting rod 222 ... wobble component
23 ... swing arm 231 ... positioning end
232 ... free end 24 ... second connecting rod group
241 ... second connecting rod 242 ... shake assembly
243 ... roller 244 ... pivot
245 ... axostylus axostyle 25 ... pivot
30 ... fore-and-aft direction transmission mechanism
31 ... second driving shaft 32 ... first connecting rod assembly
321 ... first connecting rod part 322 ... swing component
323 ... pivot 33 ... guide member
331 ... perforation 34 ... horizontal displacement member
341 ... major axis 342 ... minor axis
343 ... axis hole 35 ... second connecting rod assembly
351 ... second connecting rod part 352 ... shake part
353 ... pivot
40 ... cloth feeding mechanism
41 ... pressure bar 42 ... work feed presser feet
43 ... convex block 431 ... conduit
44 ... locating part 441 ... guide groove
50 ... seam is apart from guiding mechanism
51 ... seam is apart from eccentric wheel 511 ... guide rail
52 ... buckle 53 ... fast pulley
54 ... spring 55 ... alignment pin
7 ... lower cloth-feeding device
8 ... Sewing machines body.
Detailed description of the invention
Detailed description for the present invention and technology contents, coordinate graphic being described as follows, but institute's accompanying drawings only provides with reference to and use is described, is not used for the present invention's in addition limitr.
Refer to shown in Fig. 1, the invention provides a kind of upper cloth feeding device of Sewing machines, the Sewing machines of the present embodiment is three needle ring seam sewing machines, and this upper cloth feeding device mainly comprises main drive gear 10, above-below direction transmission mechanism 20, fore-and-aft direction transmission mechanism 30 and a cloth feeding mechanism 40.
Refer to shown in Fig. 2, main drive gear 10 comprises rotating shaft 11,1 first eccentric wheel 12,1 second eccentric wheel 13 and a handwheel 14, rotating shaft 11 through axle sleeve cross-under in body 8 center (as shown in Figure 7), handwheel 14 is fixed on the right end position of rotating shaft 11, and the first eccentric wheel 12 and the second eccentric wheel 13 are fixed on the region, stage casing of rotating shaft 11 with front and back configuration mode.
Refer to shown in Fig. 3, above-below direction transmission mechanism 20 comprises one first power transmission shaft 21, first connecting rod group 22, swing arm 23 and a second connecting rod group 24; First power transmission shaft 21 is through axle sleeve and locating ring (in figure dotted line person) cross-under and be positioned at body 8 and be parallel to each other with aforementioned rotation axis 11; First connecting rod group 22 comprises first connecting rod 221 and a wobble component 222, one end of first connecting rod 221 is socketed on aforementioned first eccentric wheel 12, the other end of first connecting rod 221 is then connected with one end of wobble component 222 through a pivot 223, and the other end of wobble component 222 is then fixed on the right end of the first power transmission shaft 21 in the urgent mode of screw.
Second connecting rod group 24 comprises a second connecting rod 241, and shakes assembly 242 and a roller 243, the left distal end following that one end of shake assembly 242 is fixed on the first power transmission shaft 21 in the urgent mode of screw swings, the other end of shake assembly 242 is connected with one end of second connecting rod 241 through a pivot 244, and roller 243 is connected to the other end of second connecting rod 241 through an axostylus axostyle 245.
Swing arm 23 has positioning end 231 and a free end 231, and the positioning end 231 of swing arm 23 is articulated in body 8 inside through a pivot 25, and the free end 231 of swing arm 23 is sheathed is articulated in aforementioned axostylus axostyle 245.
Refer to shown in Fig. 4, fore-and-aft direction transmission mechanism 30 comprises second driving shaft 31, first connecting rod assembly 32, guide member 33, horizontal displacement member 34 and a second connecting rod assembly 35; Second driving shaft 31 is through axle sleeve and locating ring (in figure dotted line person) cross-under and be positioned at body 8 and be parallel to each other with aforementioned rotation axis 11 and the first power transmission shaft 21; First connecting rod assembly 32 comprises first connecting rod part 321 and a swing component 322, one end of first connecting rod part 321 is socketed in aforementioned second eccentric wheel 13, the other end of first connecting rod part 321 is connected with one end of swing component 322 through a pivot 323, and the other end of swing component 322 is fixed on the right end of second driving shaft 31 through screw.
Second connecting rod assembly 35 comprises second connecting rod part 351 and a shake part 352, and one end of shake part 352 is fixed on the left distal end of second driving shaft 31 through screw, the other end of shake part 352 is connected with one end of second connecting rod part 351 through a pivot 353.Guide member 33 is roughly in a rectangular blocks, and it is fixed on the inside of body 8 through the solid assembly of the spiral shells such as screw, offers a cross-perforating 331 in the centre position of guide member 33.
Horizontal displacement member 34 is made up of with a longitudinal minor axis 342 of the one end being connected to major axis 341 a horizontal major axis 341, and in a L-shaped, wherein the aforesaid perforation 331 of major axis 341 cross-under also can move back and forth as horizontal direction relative to guide member 33, and minor axis 342 offers an axis hole 343.
Refer to shown in Fig. 5, cloth feeding mechanism 40 comprises pressure bar 41, work feed presser feet 42 and a convex block 43, convex block 43 can connect or be molded directly within the top of pressure bar 41, be provided with a conduit 431 in the Lower Half of convex block 43, this conduit 431 is for the accommodating movement of aforesaid roller 243 (as shown in Figure 3); Work feed presser feet 42 is fixed on the bottom position of pressure bar 41 in the mode of tightening, and the axis hole 343 (as shown in Figure 4) of this pressure bar 41 cross-under aforementioned levels moving member 34 also can move back and forth as above-below direction relative to horizontal displacement member 34.
Another cloth feeding mechanism 40 more comprises a locating part 44, it is fixed on the inside of body 8 through the solid assembly of the spiral shells such as screw, this locating part 44 offers the guide groove 441 embedded for aforementioned convex block 43 first half, by avoid pressure bar 41 and beat that convex block 43 is making to produce in the process moved back and forth up and down left and right directions to rock.
Refer to shown in Fig. 6, upper cloth feeding device of the present invention more comprises a seam apart from guiding mechanism 50, this seam is socketed in aforesaid rotating shaft 11 apart from guiding mechanism 50 and corresponds to the first connecting rod assembly 32 of aforesaid fore-and-aft direction transmission mechanism 30 and the second eccentric wheel 13 arranges (as shown in Figure 1), seam comprises a seam apart from eccentric wheel 51 apart from guiding mechanism 50, one buckle 52, one fast pulley 53, one spring 54 and two alignment pins 55, seam is socketed in rotating shaft 11 outside apart from the side of eccentric wheel 51 and is contained in the second eccentric wheel 13 inside, seam is provided with apart from the opposite side of eccentric wheel 51 guide rail 511 be embedded for buckle 52, fast pulley 53 is fixed by socket rotating shaft 11 and is positioned at a side of buckle 52, spring 54 is fixed on seam apart from eccentric wheel 51 and one end is elasticity supports at buckle 52.The other end of one of them alignment pin 55 cross-under spring 54 is also fixed on the side of seam apart from eccentric wheel 51, and another alignment pin 55 is fixed on seam another side apart from eccentric wheel 51, and this two alignment pin 55 is mainly used for the minimum of a value of opposite joint distance and maximum and limits.Buckle 52 is pushed open with instrument (scheming not shown) during use, rotate handwheel 14 with hand and make rotating shaft 11 produce rotation, utilize the second eccentric wheel 13 and the adjustment of seam apart from the eccentric distance of eccentric wheel 51, first connecting rod assembly 32 can be made to produce different amplitude of fluctuation.
Refer to shown in the 7th and Fig. 8, upper cloth feeding device of the present invention can be installed on a Sewing machines body 8 with once cloth-feeding device 7 jointly, motor (the scheming not shown) rotating shaft 11 to main drive gear 10 is utilized to drive during use, rotating shaft 11 will be made to drive the first eccentric wheel 12 and the second eccentric wheel 13 to rotate together, now the first eccentric wheel 12 drives first connecting rod group 22 to do reciprocating swing with its offset, and the first power transmission shaft 21 is followed rotate, drive second connecting rod group 24 to do reciprocating swing simultaneously, the positioning end 231 of swing arm 23 is utilized to be articulated on body 8 through pivot 25, and the free end 232 of swing arm 23 connects roller 243 through axostylus axostyle 245 cross-under, and roller 243 is contained in the conduit 431 of convex block 43, carry out in reciprocating type mobile process at second connecting rod 241, pressure bar 41 and work feed presser feet 42 will be made to do longitudinally to move up and down.
Another second eccentric wheel 13 drives first connecting rod assembly 32 to do reciprocating swing with its offset, and second driving shaft 31 is followed rotate, drive second connecting rod assembly 35 to do reciprocating swing simultaneously, guide member 33 is utilized to be fixed on body 8, and horizontal displacement member 34 is located in the perforation 331 of guide member 33, only can do moving back and forth of horizontal direction, by region, the stage casing cross-under of pressure bar 41 in the axis hole 343 of horizontal displacement member 34, pressure bar 41 does horizontal moving back and forth by following the mobile of horizontal displacement member 34, longitudinal direction due to pressure bar 41 and work feed presser feet 42 moves up and down and moving back and forth of transverse direction is synchronous start, and coordinate position to transport object to be sewn together at the lower cloth-feeding device 7 of body 8 bottom, and work feed presser feet 42 can be allowed to produce the movement locus of capsule shape or ellipse.
In sum, the upper cloth feeding device of Sewing machines of the present invention, really can reach the application target of expection.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.
Claims (19)
1. a upper cloth feeding device for Sewing machines, described Sewing machines has a body, and this upper cloth feeding device comprises:
One main drive gear, comprises a rotating shaft, body described in this rotating shaft cross-under;
One above-below direction transmission mechanism, comprises a swing arm and two connection rod set, and this swing arm has a positioning end and a free end, and this positioning end is articulated in described body, and first connecting rod group wherein connects this rotating shaft and driven, and one end of second connecting rod group connects this free end;
One fore-and-aft direction transmission mechanism, comprise a guide member, a horizontal displacement member and two link assemblies, this guide member is fixed on described body and is provided with for the sliding perforation of this horizontal displacement member, first connecting rod assembly wherein connects this rotating shaft and is driven, and one end of second this link assembly connects this horizontal displacement member; And
One cloth feeding mechanism, comprises a pressure bar, and one end of this pressure bar is connected to this free end of this swing arm and is driven and produce and move up and down, and the stage casing of this pressure bar is slipped this horizontal displacement member and driven and produce movable simultaneously.
2. the upper cloth feeding device of Sewing machines as claimed in claim 1, it is characterized in that, described Sewing machines is three needle ring seam sewing machines.
3. the upper cloth feeding device of Sewing machines as claimed in claim 1, it is characterized in that, this main drive gear more comprises and is socketed in this rotating shaft and one first eccentric wheel and one second eccentric wheel of following rotation, this first eccentric wheel is connected with this above-below direction transmission mechanism, and this second eccentric wheel is connected with this fore-and-aft direction transmission mechanism.
4. the upper cloth feeding device of Sewing machines as claimed in claim 1, it is characterized in that, this above-below direction transmission mechanism more comprises one first power transmission shaft, this the first power transmission shaft cross-under and be positioned at described body and be parallel to each other with this rotating shaft, this second connecting rod group comprises a connecting rod, shake assembly and a roller, one end of this shake assembly connects this first power transmission shaft, the other end of this shake assembly is connected with this connecting rod through a pivot, this roller is connected to the other end of this connecting rod through an axostylus axostyle, and this free end of this swing arm is sheathed is articulated in this axostylus axostyle.
5. the upper cloth feeding device of Sewing machines as claimed in claim 4, it is characterized in that, this cloth feeding mechanism more comprises a convex block, and this convex block is connected to the end of this pressure bar, and this convex block is provided with the conduit for the accommodating movement of this roller.
6. the upper cloth feeding device of Sewing machines as claimed in claim 1, it is characterized in that, this fore-and-aft direction transmission mechanism more comprises a second driving shaft, this second driving shaft cross-under and be positioned at described body and be parallel to each other with this rotating shaft, this second connecting rod assembly comprises a link member and a shake part, one end of this shake part connects this second driving shaft, and the other end of this shake part is connected with one end of this link member through a pivot.
7. the upper cloth feeding device of Sewing machines as claimed in claim 1, is characterized in that, this horizontal displacement member has a major axis and is connected the minor axis of one end of this major axis, and this perforation of this this guide member of major axis cross-under, this minor axis offers the axis hole that this pressure bar of confession slips.
8. the upper cloth feeding device of Sewing machines as claimed in claim 1, it is characterized in that, this cloth feeding mechanism more comprises a convex block and a locating part, and this convex block is connected to the end of this pressure bar, this locating part is fixed on described body, and this locating part offers the guide groove embedded for this convex block.
9. the upper cloth feeding device of Sewing machines as claimed in claim 1, is characterized in that, more comprises a seam apart from guiding mechanism, and this seam is socketed in this rotating shaft apart from guiding mechanism and corresponds to this fore-and-aft direction transmission mechanism and arranges.
10. the upper cloth feeding device of Sewing machines as claimed in claim 9, it is characterized in that, this seam comprises a seam apart from eccentric wheel, a buckle, a fast pulley and a spring apart from guiding mechanism, this seam is socketed in this rotating shaft apart from eccentric wheel and is provided with the guide rail be embedded for this buckle, this fast pulley is socketed in this rotating shaft and is positioned at a side of this buckle, and this spring is fixed on this seam apart from eccentric wheel and one end is elasticity supports at this buckle.
The upper cloth feeding device of 11. 1 kinds of Sewing machiness, described Sewing machines has a body, it is characterized in that, this upper cloth feeding device comprises:
One main drive gear, comprises a rotating shaft, body described in this rotating shaft cross-under;
One above-below direction transmission mechanism, comprise one first power transmission shaft, a first connecting rod group, a swing arm and a second connecting rod group, the two ends of this first connecting rod group connect this rotating shaft and this first power transmission shaft respectively, this swing arm has a positioning end and a free end, this positioning end is articulated in described body, and the two ends of this second connecting rod group connect this free end of this first power transmission shaft and this swing arm respectively;
One fore-and-aft direction transmission mechanism, comprise a second driving shaft, a first connecting rod assembly, a guide member, a horizontal displacement member and a second connecting rod assembly, the two ends of this first connecting rod assembly connect this rotating shaft and this second driving shaft respectively, this guide member is fixed on described body and is provided with for the sliding perforation of this horizontal displacement member, and the two ends of this second connecting rod assembly connect this second driving shaft and this horizontal displacement member respectively; And
One cloth feeding mechanism, comprises a pressure bar, and one end of this pressure bar is connected to this free end of this swing arm and is driven and produce and move up and down, and the stage casing of this pressure bar is slipped this horizontal displacement member and driven and produce movable simultaneously.
The upper cloth feeding device of 12. Sewing machiness as claimed in claim 11, it is characterized in that, this main drive gear more comprises and is socketed in this rotating shaft and one first eccentric wheel and one second eccentric wheel of following rotation, this first eccentric wheel is connected with this above-below direction transmission mechanism, and this second eccentric wheel is connected with this fore-and-aft direction transmission mechanism.
The upper cloth feeding device of 13. Sewing machiness as claimed in claim 11, it is characterized in that, this the first power transmission shaft cross-under and be positioned at described body and be parallel to each other with this rotating shaft, this second connecting rod group comprises a second connecting rod, shake assembly and a roller, one end of this shake assembly connects this first power transmission shaft, the other end of this shake assembly is connected with this second connecting rod through a pivot, this roller is connected to the other end of this second connecting rod through an axostylus axostyle, and this free end of this swing arm is sheathed is articulated in this axostylus axostyle.
The upper cloth feeding device of 14. Sewing machiness as claimed in claim 13, it is characterized in that, this cloth feeding mechanism more comprises a convex block, and this convex block is connected to the end of this pressure bar, and this convex block is provided with the conduit for the accommodating movement of this roller.
The upper cloth feeding device of 15. Sewing machiness as claimed in claim 11, it is characterized in that, this second driving shaft cross-under and be positioned at described body and be parallel to each other with this rotating shaft, this second connecting rod assembly comprises a second connecting rod part and a shake part, one end of this shake part connects this second driving shaft, and the other end of this shake part is connected through pivot one end with this second connecting rod part.
The upper cloth feeding device of 16. Sewing machiness as claimed in claim 11, it is characterized in that, this horizontal displacement member has a major axis and the minor axis of one end being connected this major axis, this perforation of this this guide member of major axis cross-under, and this minor axis offers for the sliding axis hole of this pressure bar.
The upper cloth feeding device of 17. Sewing machiness as claimed in claim 11, it is characterized in that, this cloth feeding mechanism more comprises a convex block and a locating part, and this convex block is connected to the end of this pressure bar, this locating part is fixed on described body, and this locating part offers the guide groove embedded for this convex block.
The upper cloth feeding device of 18. Sewing machiness as claimed in claim 11, is characterized in that, more comprises a seam apart from guiding mechanism, and this seam is socketed in this rotating shaft apart from guiding mechanism and corresponds to this fore-and-aft direction transmission mechanism and arranges.
The upper cloth feeding device of 19. Sewing machiness as claimed in claim 18, it is characterized in that, this seam comprises a seam apart from eccentric wheel, a buckle, a fast pulley and a spring apart from guiding mechanism, this seam is socketed in this rotating shaft apart from eccentric wheel and is provided with the guide rail be embedded for this buckle, this fast pulley is socketed in this rotating shaft and is positioned at a side of this buckle, and this spring is fixed on this seam apart from eccentric wheel and one end is elasticity supports at this buckle.
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CN201110311513.0A CN103046239B (en) | 2011-10-14 | 2011-10-14 | Cloth feeding device of sewing machine |
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CN201110311513.0A CN103046239B (en) | 2011-10-14 | 2011-10-14 | Cloth feeding device of sewing machine |
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CN103046239A CN103046239A (en) | 2013-04-17 |
CN103046239B true CN103046239B (en) | 2015-03-25 |
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CN201110311513.0A Active CN103046239B (en) | 2011-10-14 | 2011-10-14 | Cloth feeding device of sewing machine |
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CN113493964B (en) * | 2020-04-07 | 2022-10-04 | 杰克科技股份有限公司 | Upper front-back driving mechanism for upper feeding teeth in sewing machine and sewing machine |
Citations (3)
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US4364321A (en) * | 1980-09-20 | 1982-12-21 | Durkoppwerke Gmbh | Fabric top feeder for a sewing machine |
CN101736530A (en) * | 2008-11-11 | 2010-06-16 | 高林股份有限公司 | Shifting gear transmission device of cylindrical sewing machine |
CN201605417U (en) * | 2010-01-04 | 2010-10-13 | 名匠缝纫机股份有限公司 | Cloth feed control mechanism of small-traverse-tube sewing machine |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS63189194A (en) * | 1987-01-30 | 1988-08-04 | ジューキ株式会社 | Stitch pitch control mechanism of overlock sewing machine |
JPH1157263A (en) * | 1997-08-19 | 1999-03-02 | Yamato Sewing Mach Co Ltd | Cloth feed drive unit of sewing machine |
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2011
- 2011-10-14 CN CN201110311513.0A patent/CN103046239B/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4364321A (en) * | 1980-09-20 | 1982-12-21 | Durkoppwerke Gmbh | Fabric top feeder for a sewing machine |
CN101736530A (en) * | 2008-11-11 | 2010-06-16 | 高林股份有限公司 | Shifting gear transmission device of cylindrical sewing machine |
CN201605417U (en) * | 2010-01-04 | 2010-10-13 | 名匠缝纫机股份有限公司 | Cloth feed control mechanism of small-traverse-tube sewing machine |
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