CN104131420B - A kind of Sewing machines automatic pressure-transforming pin mechanism - Google Patents
A kind of Sewing machines automatic pressure-transforming pin mechanism Download PDFInfo
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- CN104131420B CN104131420B CN201410387542.9A CN201410387542A CN104131420B CN 104131420 B CN104131420 B CN 104131420B CN 201410387542 A CN201410387542 A CN 201410387542A CN 104131420 B CN104131420 B CN 104131420B
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- presser feet
- motor
- hinged
- free end
- connecting rod
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Abstract
The present invention relates to a kind of Sewing machines automatic pressure-transforming pin mechanism, it is characterized in that: comprise presser feet height adjustment assembly, presser feet stroke adjustment assembly; The output shaft of the first motor of height adjusting mechanism of presser foot is connected with the first power transmission shaft, and fork is curved bar, and its crooked position is provided with and is fixedly hinged a little; Fixed bar has stiff end and free end, stiff end and sewing-machine equipment hinged fixing, free end can rotate around stiff end, and fork props up fixed bar bottom, drives fixed bar to rotate around stiff end, regulates the upper-lower position of free end; The output shaft of the second motor of presser feet stroke adjustment assembly is connected with second driving shaft, second motor rotates, driven by second driving shaft, link assembly and adjust machine, drive connecting plate to do oscillating motion around the free end of fixed bar, regulate the height of third connecting rod and presser feet; The top of depression bar is provided with saddle and back-moving spring, and back-moving spring applies pressure downwards and keeps presser feet up and down without beating.The automation that present invention achieves presser feet height regulates, and structure is simple simultaneously, easy to adjust.
Description
Technical field
The present invention relates to a kind of Sewing machines automatic pressure-transforming pin mechanism, belong to sewing machine technique field.
Background technology
Along with the raising of making industrial level, common industrial sewing machine can not meet the demand of existing market, seam quality does not reach the satisfaction of client, stitching obviously affects client's aesthetic conceptions, same sewing exists fabric thickness when differing, common sewing-machine foot height is fixing, can not good compress, causes that broken string, flotation line, bouncing pilotage etc. are bad makes effect.
Also more advanced industrial sewing machine is had can to regulate presser feet height, or the height of presser feet in adopting the mode of manual adjustments to regulate, very inconvenient; Or structure is very complicated, control very complicated, with high costs, regulating effect is not good yet yet.
Summary of the invention
The present invention needs: existing Sewing machines, when regulating presser feet height, or takes manual adjustments, very inconvenient, or structure is very complicated, controls also very complicated, causes with high costs, and regulating effect is not good yet simultaneously.
The present invention takes following technical scheme:
A kind of Sewing machines automatic pressure-transforming pin mechanism, comprises presser feet height adjustment assembly, presser feet stroke adjustment assembly; Described height adjusting mechanism of presser foot comprises the first motor 23, the output shaft of described motor is connected with the first power transmission shaft 17, described first power transmission shaft 17 is connected with crank 1, crank 1 is hinged with first connecting rod 2, connecting rod 2 is hinged with fork 3, fork 3 is curved bar, and its crooked position is provided with a C that is fixedly hinged; Fixed bar 9 has stiff end and free end B, stiff end and sewing-machine equipment hinged fixing, free end B can rotate around stiff end, and fork 3 props up fixed bar 9 bottom, drives fixed bar 9 to rotate around stiff end, regulates the upper-lower position of free end B; Described presser feet stroke adjustment assembly comprises the second motor 22, the output shaft of described second motor 22 is connected with second driving shaft 21, second driving shaft 21 is connected with link assembly 18, link assembly 18 is connected with adjuster 13, adjust machine 13 and second connecting rod 11 hinged, second connecting rod 11 and connecting plate 10 upper end thereof, connecting plate 10 is bool, the free end B of its crooked position and fixed bar 9 is hinged, connecting plate 10 lower end and third connecting rod 8 hinged, third connecting rod 8 is hinged with depression bar 6, and depression bar 6 bottom is connected with presser feet 7; Second motor 22 rotates, and is driven and adjusts machine 13, drive connecting plate 10 to do oscillating motion around the free end B of fixed bar 9, regulate the height of third connecting rod 8 and presser feet 7 by second driving shaft 21, link assembly 18; The top of depression bar 6 is provided with saddle 4 and back-moving spring 25, and back-moving spring 25 applies pressure downwards and keeps presser feet about 7 without beating.
The feature of the technical program is: adopt first, second motor as power source, in two steps the adjustment of presser feet height and presser feet stroke adjustment are carried out to the height of presser feet, and actually providing concrete driving member and connecting mode thereof, the automation achieving the high-precision large-range of presser feet height regulates.Transmission mechanism of the present invention, parts coordinate succinct, and structure is simple, and presser feet height is easy to adjust.
Further, the up-down adjustment scope of described presser feet 7 is 0-7mm.
Further, first, second motor described is stepper motor.
Further, described first power transmission shaft 17, second driving shaft 21 are parallel to each other, and all perpendicular with depression bar 6.
Beneficial effect of the present invention is:
1) can by presser feet height in electric control operation panel free setting, without the need to manual adjustment;
2) same style make in process, different according to the thickness of fabric, can presser feet height in free setting, reach desirable compress effect, avoid the bad effects of making such as broken string, flotation line, bouncing pilotage, meet sewing performance requirement;
3) adjustable range is large, and degree of regulation is high.
4) motor is adopted automatically to regulate as power source, and transmission mechanism, parts coordinate succinct, and structure is simple, and presser feet height is easy to adjust.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of Sewing machines automatic pressure-transforming pin mechanism of the present invention.
Fig. 2 is Sewing machines automatic pressure-transforming pin mechanism of the present invention front schematic view.
In figure: 1 crank, 2 first connecting rods, 3 forks, 4 saddles, 5 second connecting plates, 6 depression bars, 7 presser feets, 8 third connecting rods, 9 fixed bars, 10 connecting plates, 11 second connecting rods, 12 connectors, 13 adjusters, 14 gears, 15 gears, 16 cams, 17 first power transmission shafts, 18 link assemblies, 19 sensing chips, 20 inductors, 21 second driving shafts, 22 second motor, 23 first motor, 24 power transmission shafts, 25 back-moving springs.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the present invention is further described.
See Fig. 1-2, a kind of Sewing machines automatic pressure-transforming pin mechanism, comprises presser feet height adjustment assembly, presser feet stroke adjustment assembly; Described height adjusting mechanism of presser foot comprises the first motor 23, the output shaft of described motor is connected with the first power transmission shaft 17, described first power transmission shaft 17 is connected with crank 1, crank 1 is hinged with first connecting rod 2, connecting rod 2 is hinged with fork 3, fork 3 is curved bar, and its crooked position is provided with a C that is fixedly hinged; Fixed bar 9 has stiff end and free end B, stiff end and sewing-machine equipment hinged fixing, free end B can rotate around stiff end, and fork 3 props up fixed bar 9 bottom, drives fixed bar 9 to rotate around stiff end, regulates the upper-lower position of free end B; Described presser feet stroke adjustment assembly comprises the second motor 22, the output shaft of described second motor 22 is connected with second driving shaft 21, second driving shaft 21 is connected with link assembly 18, link assembly 18 is connected with adjuster 13, adjust machine 13 and second connecting rod 11 hinged, second connecting rod 11 and connecting plate 10 upper end thereof, connecting plate 10 is bool, the free end B of its crooked position and fixed bar 9 is hinged, connecting plate 10 lower end and third connecting rod 8 hinged, third connecting rod 8 is hinged with depression bar 6, and depression bar 6 bottom is connected with presser feet 7; Second motor 22 rotates, and is driven and adjusts machine 13, drive connecting plate 10 to do oscillating motion around the free end B of fixed bar 9, regulate the height of third connecting rod 8 and presser feet 7 by second driving shaft 21, link assembly 18; The top of depression bar 6 is provided with saddle 4 and back-moving spring 25, and back-moving spring 25 applies pressure downwards and keeps presser feet about 7 without beating.
The up-down adjustment scope of described presser feet 7 is 0-7mm.
First, second motor described is stepper motor.
Described first power transmission shaft 17, second driving shaft 21 are parallel to each other, and all perpendicular with depression bar 6.
According to presser feet height in the requirement free setting of fabric different-thickness, desirable compress effect can be reached, meets sewing performance requirement making in process of same style simultaneously.
The present invention adopts first, second motor as power source, in two steps the adjustment of presser feet height and presser feet stroke adjustment are carried out to the height of presser feet, and actually providing concrete driving member and connecting mode thereof, the automation achieving the high-precision large-range of presser feet height regulates.Transmission mechanism of the present invention, parts coordinate succinct, and structure is simple, and presser feet height is easy to adjust.
Invention achieves following object: can by presser feet height in electric control operation panel free setting, without the need to manual adjustment; Same style make in process, different according to the thickness of fabric, can presser feet height in free setting, reach desirable compress effect, avoid the bad effects of making such as broken string, flotation line, bouncing pilotage, meet sewing performance requirement.
Compared with prior art there is structure simpler, adjust easier, the advantages such as cost is cheaper.
Claims (4)
1. a Sewing machines automatic pressure-transforming pin mechanism, is characterized in that:
Comprise presser feet height adjustment assembly, presser feet stroke adjustment assembly;
Described height adjusting mechanism of presser foot comprises the first motor (23), the output shaft of described motor is connected with the first power transmission shaft (17), described first power transmission shaft (17) is connected with crank (1), crank (1) is hinged with first connecting rod (2), first connecting rod (2) is hinged with fork (3), fork (3) is curved bar, and its crooked position is provided with the point (C) that is fixedly hinged; Fixed bar (9) has stiff end and free end (B), stiff end and sewing-machine equipment hinged fixing, free end (B) can rotate around stiff end, fork (3) props up fixed bar (9) bottom, drive fixed bar (9) to rotate around stiff end, regulate the upper-lower position of free end (B);
Described presser feet stroke adjustment assembly comprises the second motor (22), the output shaft of described second motor (22) is connected with second driving shaft (21), second driving shaft (21) is connected with link assembly (18), link assembly (18) is connected with adjuster (13), adjust machine (13) and second connecting rod (11) hinged, second connecting rod (11) and connecting plate (10) upper end thereof, connecting plate (10) is bool, the free end (B) of its crooked position and fixed bar (9) is hinged, connecting plate (10) lower end and third connecting rod (8) hinged, third connecting rod (8) is hinged with depression bar (6), depression bar (6) bottom is connected with presser feet (7), second motor (22) rotates, by second driving shaft (21), link assembly (18) driving regulator (13), drive connecting plate (10) free end (B) around fixed bar (9) to do oscillating motion, regulate the height of third connecting rod (8) and presser feet (7),
The top of depression bar (6) is provided with saddle (4) and back-moving spring (25), and back-moving spring (25) applies pressure downwards and keeps presser feet (7) up and down without beating.
2. Sewing machines automatic pressure-transforming pin mechanism as claimed in claim 1, is characterized in that: the up-down adjustment scope of described presser feet (7) is 0-7mm.
3. Sewing machines automatic pressure-transforming pin mechanism as claimed in claim 1, is characterized in that: first, second motor described is stepper motor.
4. Sewing machines automatic pressure-transforming pin mechanism as claimed in claim 1, is characterized in that: described first power transmission shaft (17), second driving shaft (21) are parallel to each other, and all perpendicular with depression bar (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410387542.9A CN104131420B (en) | 2014-08-08 | 2014-08-08 | A kind of Sewing machines automatic pressure-transforming pin mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410387542.9A CN104131420B (en) | 2014-08-08 | 2014-08-08 | A kind of Sewing machines automatic pressure-transforming pin mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104131420A CN104131420A (en) | 2014-11-05 |
| CN104131420B true CN104131420B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410387542.9A Expired - Fee Related CN104131420B (en) | 2014-08-08 | 2014-08-08 | A kind of Sewing machines automatic pressure-transforming pin mechanism |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463709B (en) * | 2015-12-23 | 2017-10-20 | 浙江美机缝纫机有限公司 | A kind of middle foot pressing mechanism of sewing machine of anti-chiseling down |
| CN106192229B (en) * | 2016-09-26 | 2022-06-28 | 浙江中捷缝纫科技有限公司 | Presser foot height adjusting device of sewing machine |
| CN106521819A (en) * | 2016-12-28 | 2017-03-22 | 浙江绅仕镭集团有限公司 | Head structure and knitting machine |
| CN106637701B (en) * | 2017-03-06 | 2019-09-03 | 苏州沃瑞豪兹自动化设备有限公司 | Industrial sewing machine |
| CN108193386B (en) | 2018-04-09 | 2023-12-15 | 浙江鸿立缝制设备有限公司 | Pressure regulating mechanism for lifting presser foot of sewing machine |
| CN110685074B (en) * | 2019-10-22 | 2020-06-30 | 浙江大学 | Industrial sewing machine stitch shape keeping method for flexible fabric |
| CN111286874B (en) * | 2020-04-10 | 2021-10-22 | 杰克缝纫机股份有限公司 | Automatic formula presser foot pressure adjusting device and sewing machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR910700375A (en) * | 1989-01-27 | 1991-03-15 | 틸만스; 클라인 | Sewing machine with upper feeder |
| JPH09299643A (en) * | 1996-05-13 | 1997-11-25 | Juki Corp | Sewing machine |
| JP2007282747A (en) * | 2006-04-14 | 2007-11-01 | Juki Corp | Sewing machine |
| CN201317859Y (en) * | 2008-12-10 | 2009-09-30 | 庄卫东 | Presser bar lifting mechanism for electric sewing machine |
| CN103590198A (en) * | 2012-08-15 | 2014-02-19 | 上海贵衣缝纫设备有限公司 | Press foot adjusting structure for extremely thick material in pattern sewing machine |
| CN204058892U (en) * | 2014-08-08 | 2014-12-31 | 上海富山精密机械科技有限公司 | A kind of Sewing machines automatic pressure-transforming pin mechanism |
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2014
- 2014-08-08 CN CN201410387542.9A patent/CN104131420B/en not_active Expired - Fee Related
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| CN104131420A (en) | 2014-11-05 |
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