CN104911827A - Differential ratio adjustment mechanism for sewing machine - Google Patents
Differential ratio adjustment mechanism for sewing machine Download PDFInfo
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- CN104911827A CN104911827A CN201510331135.0A CN201510331135A CN104911827A CN 104911827 A CN104911827 A CN 104911827A CN 201510331135 A CN201510331135 A CN 201510331135A CN 104911827 A CN104911827 A CN 104911827A
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- differential
- connecting rod
- machine
- connecting pin
- differential ratio
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Abstract
The invention belongs to the technical field of sewing machines and particularly relates to a differential ratio adjustment mechanism for a sewing machine. The differential ratio adjustment mechanism comprises a differential swing connecting rod, one end of the differential swing connecting rod is fixedly arranged on a cloth feeding shaft, the other end of the differential swing connecting rod is provided with an arc-shaped sliding groove, one end of a connecting pin is arranged in the arc-shaped sliding groove, the other end of the connecting pin is connected with a differential connecting rod, the other end of the differential connecting rod is connected with a differential tooth frame, and the position of the connecting pin in the arc-shaped sliding groove is adjusted to achieve the adjustment of the differential ratio. The adjustment of the differential ratio is achieved through a crankshaft and connecting rod mechanism, the crankshaft and connecting rod mechanism is positioned in a machine casing; a machine head left cover only needs to be opened lightly, a screwdriver is utilized to unscrew a screw to perform movement up and down, so that the differential ratio of the machine can be adjusted conveniently; the number of plenty of parts is reduced, the structure is simplified, the machine casing processing is facilitated, the machine assembly difficulty is reduced, and the working efficiency is improved.
Description
Technical field:
The invention belongs to sewing machine technique field, refer in particular to the differential of a kind of Sewing machines and compare governor motion.
Background technology:
Under normal circumstances, feed dog is the same with the stroke of differential tooth to Sewing machines, is that is synchronous.But, at some special occasions, during as made thin material, need by regulating the differential stroke than controlling differential tooth different to realize different effects of making, as: the stroke of differential tooth is become large, then cloth can be strutted in the process of making; The stroke of differential tooth is diminished, then cloth can be sewed a kind of effect of fold.Existing differential governor motion is regulated in casing outside by the transmission mechanism of complexity.Due to the complexity of transmission mechanism, too increase difficulty to casing processing and assembling, casing repair rate is high, thus reduces production efficiency.Moreover because of consume part more, production cost also increases thereupon.
Summary of the invention:
The object of this invention is to provide a kind of adjustment simple, convenient, the differential of Sewing machines that structure simplifies compares governor motion.
The present invention is achieved in that
The differential of a kind of Sewing machines compares governor motion, comprise differential swing connecting bar, one end of differential swing connecting bar is installed on cloth pushing shaft, on the other end and is provided with arc chute, one end of connecting pin is arranged in arc chute, the other end is connected with differential connecting rod, the other end of differential connecting rod is connected with differential retainer, regulates the position of connecting pin in arc chute to realize the adjustment of differential ratio.
In technique scheme, one end of described connecting pin is embedded in differential swing connecting bar chute also with screw and washer locking.
In technique scheme, be provided with lining in another stomidium of described differential connecting rod, differential connecting rod and lining are connected on differential crank by screw.
In technique scheme, the other end of described differential connecting rod is connected with differential crank, and differential crank is fixed on differential retainer.
The advantage that the present invention gives prominence to compared to existing technology is:
1, the present invention realizes the adjustment of differential ratio by toggle, toggle is arranged on casing internal, only need have gentle hands gently to break head left cover screwdriver into two with one's hands to turn on screw and move up and down the differential ratio that just can regulate machine easily, decrease a large amount of number of parts, structure simplifies, both facilitate the assembly difficulty that casing processing again reduces machine, improve operating efficiency;
2, design of part of the present invention is fairly simple, can enhance productivity to a great extent and reduce production cost, improves the stability of structure.
Accompanying drawing illustrates:
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is the structural representation of crank connecting link of the present invention;
Fig. 3 is mechanism kinematic of the present invention.
Detailed description of the invention:
With specific embodiment, the invention will be further described below, see Fig. 1-3:
The differential of a kind of Sewing machines compares governor motion, comprise differential swing connecting bar 1, one end of differential swing connecting bar 1 is installed on cloth pushing shaft 3, on the other end by screw 2 and is provided with arc chute 4, one end of connecting pin 5 to be arranged in arc chute 4 and locked by screw 6 and packing ring 7, the other end is sleeved on outside differential connecting rod 8, differential connecting rod 8 can rotate around connecting pin 5.The other end of differential connecting rod 8 is connected with differential crank 9, and differential crank 9 is fixed by screws on differential retainer 10, and differential retainer 10 is provided with differential tooth 11.The position of connecting pin 5 in arc chute 4 is regulated to realize the adjustment of differential ratio.
Be provided with lining in another stomidium of described differential connecting rod 8, differential connecting rod 8 and lining are connected on differential crank 9 by screw 12.
The adjustment of differential ratio of the present invention is realized by toggle, formed, and differential linkage is arranged on casing internal by parts such as differential goods of furniture for display rather than for use connecting rod 1, differential connecting rods 8.During adjustment, gently break with have gentle hands the screw 6 that locking connecting pin 5 turned on by head left cover screwdriver into two with one's hands, increase differential ratio by up mobile for connecting pin 5, move down and reduce differential ratio, simple to operation.
Principles of Regulation are:
Up move in the arc chute 4 of connecting pin 5 in differential swing connecting bar 1, when cloth pushing shaft 3 pendulum angle is constant, the distance increased between connecting pin 5 and cloth pushing shaft 3 just can increase the amplitude of oscillation of connecting pin 5, because the other end of differential connecting rod 8 is connected with differential crank 9, therefore the movement travel of differential crank 9 becomes large, within the identical time, the stroke of differential tooth 11 is greater than work feed tooth 13, differential than increasing;
Otherwise then the distance reduced between connecting pin 3 and cloth pushing shaft 3 just reduces the amplitude of oscillation of connecting pin 5, and the movement travel of differential crank 9 diminishes, and within the identical time, the stroke of differential tooth 11 is less than work feed tooth 13, differential than reducing.
Above-described embodiment is only one of preferred embodiment of the present invention, not limits practical range of the present invention with this, therefore: all equivalence changes done according to shape of the present invention, structure, principle, all should be covered by within protection scope of the present invention.
Claims (4)
1. the differential of a Sewing machines compares governor motion, it is characterized in that: comprise differential swing connecting bar, one end of differential swing connecting bar is installed on cloth pushing shaft, on the other end and is provided with arc chute, one end of connecting pin is arranged in arc chute, the other end is connected with differential connecting rod, the other end of differential connecting rod is connected with differential retainer, regulates the position of connecting pin in arc chute to realize the adjustment of differential ratio.
2. a kind of Sewing machines according to claim 1 is differential than governor motion, it is characterized in that: one end of described connecting pin is embedded in differential swing connecting bar chute also with screw and washer locking.
3. a kind of Sewing machines according to claim 1 is differential than governor motion, it is characterized in that: be provided with lining in another stomidium of described differential connecting rod, differential connecting rod and lining are connected on differential crank by screw.
4. a kind of Sewing machines according to claim 1 or 3 differential than governor motion, is characterized in that: the other end of described differential connecting rod is connected with differential crank, and differential crank is fixed on differential retainer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510331135.0A CN104911827A (en) | 2015-06-15 | 2015-06-15 | Differential ratio adjustment mechanism for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510331135.0A CN104911827A (en) | 2015-06-15 | 2015-06-15 | Differential ratio adjustment mechanism for sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104911827A true CN104911827A (en) | 2015-09-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510331135.0A Pending CN104911827A (en) | 2015-06-15 | 2015-06-15 | Differential ratio adjustment mechanism for sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104911827A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970492A (en) * | 2016-08-03 | 2016-09-28 | 杰克缝纫机股份有限公司 | Differential cloth feeding adjustment mechanism and sewing machine |
| CN107151869A (en) * | 2017-04-12 | 2017-09-12 | 宁波艾克斯曼缝纫机有限公司 | Differential feed mechanism and its feeding adjusting method under flat seam machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7246564B2 (en) * | 2005-08-08 | 2007-07-24 | Shing Ray Sewing Machine Co., Ltd. | Differential feeding mechanism of the front and rear translation gears of a transverse shuttle-type sewing machine |
| CN101649529A (en) * | 2009-08-31 | 2010-02-17 | 浙江青本缝纫机有限公司 | Adjusting device for differential mechanism of straight flat seaming 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 |
| CN104775236A (en) * | 2015-04-30 | 2015-07-15 | 杰克缝纫机股份有限公司 | Sewing machine feeding mechanism |
| CN204608342U (en) * | 2015-04-30 | 2015-09-02 | 杰克缝纫机股份有限公司 | A kind of sewing machine feeding mechanism |
| CN204982303U (en) * | 2015-06-15 | 2016-01-20 | 杰克缝纫机股份有限公司 | Sewing machine's differential adjustment mechanism that compares |
-
2015
- 2015-06-15 CN CN201510331135.0A patent/CN104911827A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7246564B2 (en) * | 2005-08-08 | 2007-07-24 | Shing Ray Sewing Machine Co., Ltd. | Differential feeding mechanism of the front and rear translation gears of a transverse shuttle-type sewing machine |
| CN101649529A (en) * | 2009-08-31 | 2010-02-17 | 浙江青本缝纫机有限公司 | Adjusting device for differential mechanism of straight flat seaming 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 |
| CN104775236A (en) * | 2015-04-30 | 2015-07-15 | 杰克缝纫机股份有限公司 | Sewing machine feeding mechanism |
| CN204608342U (en) * | 2015-04-30 | 2015-09-02 | 杰克缝纫机股份有限公司 | A kind of sewing machine feeding mechanism |
| CN204982303U (en) * | 2015-06-15 | 2016-01-20 | 杰克缝纫机股份有限公司 | Sewing machine's differential adjustment mechanism that compares |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970492A (en) * | 2016-08-03 | 2016-09-28 | 杰克缝纫机股份有限公司 | Differential cloth feeding adjustment mechanism and sewing machine |
| CN105970492B (en) * | 2016-08-03 | 2019-01-11 | 杰克缝纫机股份有限公司 | Differential cloth-feeding regulating mechanism and sewing machine |
| CN107151869A (en) * | 2017-04-12 | 2017-09-12 | 宁波艾克斯曼缝纫机有限公司 | Differential feed mechanism and its feeding adjusting method under flat seam machine |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150916 |