CN105274739B - Sewing machine - Google Patents
Sewing machine Download PDFInfo
- Publication number
- CN105274739B CN105274739B CN201510414155.4A CN201510414155A CN105274739B CN 105274739 B CN105274739 B CN 105274739B CN 201510414155 A CN201510414155 A CN 201510414155A CN 105274739 B CN105274739 B CN 105274739B
- Authority
- CN
- China
- Prior art keywords
- sewing
- pressure
- cam
- foot
- sewing machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000009958 sewing Methods 0.000 title claims abstract description 63
- 239000000463 material Substances 0.000 claims abstract description 17
- 230000001737 promoting effect Effects 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 3
- 230000004913 activation Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/02—Presser-control devices
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The present invention relates to a kind of sewing machine, which includes: at least one sewing foot, for pushing material to be sewed during sewing；Pressure-regulating device, for presetting down force pressure, which is applied on material to be sewed by the sewing foot when pushing the material wait sew；Lifting device, for promoting the sewing foot.The sewing machine includes the shared driving device (12) for the pressure-regulating device and the lifting device.Cam disc (13) is un-rotatably arranged in the drive shaft of the shared driving device, the cam disc (13) cooperates with cam lever (14), on the one hand it is used to promote the sewing foot, is on the other hand used to drive the pressure-regulating device.To reduce use in sewing machine in the constructions cost of pressure-regulating device and lifting device.
Description
Technical field
The present invention relates to a kind of sewing machines.
Background technique
A kind of sewing machine of this type known from 2 105 526 B1 of EP.202 658 372 U of CN discloses one kind
Sewing foot lifting device with stepper motor, the stepper motor are cooperated by cam disc with other components of lifting device.
Summary of the invention
Therefore the purpose of the present invention is reduce the expenditure of construction pressure-regulating device and lifting device.
The purpose realizes that the sewing machine includes: at least one sewing foot, for stitching by sewing machine according to the present invention
Material to be sewed is pushed during system；Pressure-regulating device, for presetting down force pressure, the sewing foot push it is to be sewed
The down force pressure is applied on the material to be sewed when material；Lifting device, for promoting the sewing foot；For described
Pressure-regulating device and the shared driving device for being used for the lifting device, wherein cam disc is un-rotatably arranged in institute
It states in the drive shaft of shared driving device, the cam disc cooperates with cam lever, to promote the sewing foot and driving institute
State pressure-regulating device.
According to the present invention, the shared driving device for pressure-regulating device and for lifting device significantly simplifies seam
The mechanism that threads makes.Driving device can be saved.Relevant control unit can also be saved.The shared driving device is configurable to not
It will lead to the damage of the essentially independent function to " foot promotion " and " pressure adjusting ".By saving driving device, construction becomes
It is more economical and whole more compact.
Cam disc cooperates in this way with the cam lever, so that carrying out along a direction of rotation of the cam disc
The promotion of the sewing foot, the driving of the pressure-regulating device is carried out along another direction of rotation of the cam disc, in this way
Cooperation can lead to for foot promoted and for pressure controlled mechanical transmission component advantageous uncoupling.
" minimum down force pressure " cam lever position is preset by the cam recess portion of the cam disc, this allows determining minimum
Down force pressure is default.
It promotes axis to be used to transmit handover operation power from the cam lever to the sewing foot, this allows driving device far from seam
Foot arrangement processed.
The driving device is configured to stepper motor, this particularly allows default down force pressure grade.This can be used for adapting to
Corresponding sewing environment.The fine grade of hoisting depth is also advantageous.When sewing thick material, high promotion can be preconditioned
Highly.When sewing is compared with thin material, low hoisting depth can be preconditioned.
The drive shaft of the shared driving device is convex in " minimum down force pressure " cam lever position and " maximum down force pressure "
The adjustable range taken turns between bar position is greater than 180 °, this allow fine default down force pressure without too high positioning accuracy or
The driving stage is divided again.
Detailed description of the invention
The embodiment of the present invention will be described in more detail by means of attached drawing below, in the accompanying drawings:
Fig. 1 three-dimensionally shows the main view of sewing machine；
Fig. 2 three-dimensionally shows the component of the sewing machine according to Fig. 1, and there is the pressure for presetting down force pressure to adjust dress
It sets, the lifting device for promoting sewing foot and for the shared driving device of these devices, the down force pressure is in sewing underfooting
It is applied to when pressing the material wait sew on the material to be sewed；
Fig. 3 shows the flat of component according to fig. 2 from direction of observation III, being located at " minimum down force pressure " position
Face figure；
Fig. 4 shows the component in " most big foot promotion " position with the visual angle similar to Fig. 3；And
Fig. 5 shows the component in " maximum down force pressure " position with the visual angle similar to Fig. 3.
Specific embodiment
Sewing machine 1 has frame 2, arm 3 and head 4, they are formed together the overall C-shaped configuration of sewing machine 1 with substrate 5.Arm
Axis is driven by the main drive not being shown specifically, and the shank 6 that arm axle driving is fixed with eedle 7 thereon moves up and down.Eedle 7
By the pin hole in needle plate, which forms a part of support plate 8 herein, which is the upper of the substrate 5 of sewing machine 1
Side.
Sewing machine 1 has sewing foot 9, and to push material to be sewed during sewing, the sewing foot is also referred to as pressed
Foot.The sewing foot 9 is mounted on presser bar 10.
The component integrally indicated by appended drawing reference 11 in Fig. 2 is for presetting down force pressure and promoting sewing foot, the pushing
Pressure is applied on material to be sewed by sewing foot 9 when pushing the material wait sew.
Component 11 includes the lifting device and use for presetting the pressure-regulating device of down force pressure, for promoting sewing foot
In the shared driving device of the two devices.Pressure-regulating device and lifting device described in detail below.Shared driving device
It is configured to stepper motor 12.
The drive shaft of stepper motor 12 is non-rotatably connected to cam disc 13.Cam disc 13 cooperates with cam lever 14 to mention
Rise sewing foot 9 and driving pressure regulating device.Cam lever 14, which is non-rotatably connected to, promotes axis 15, promotes axis 15 and sewing machine
Arm axle in 1 arm 3 is extended in parallel and is pivotally mounted on the frame of sewing machine 1.Lift lever 16 un-rotatably connects
It is connected to and promotes axis 15, which cooperates with presser foot driver 17, which is rigidly connected to presser bar 10.
The promotion axis 15 is used to transmit handover operation power from cam lever 14 to sewing foot 9.
Promote axis 15 and be connected to pull rod 18 in articulated manner, pull rod 18 at one end opposite with cam lever 14 relative to
It is eccentric to promote axis longitudinal axis, which is pressurized from above by presser bar 10 by bushing 19, to press unshowned seam in Fig. 2
Foot 9 processed.
Compressed spring 21 is arranged between another bushing 20 and presser foot driver 17, the bushing 20 be fixed to frame and
Presser bar 10 passes through the bushing 20, which spirals about a part of presser bar 10.
Fig. 1 and Fig. 2 shows the components 11 of " minimum down force pressure " activation point.The cam door bolt 22 of cam lever 14 has moved
Into the cam recess portion 23 of cam disc 13, this defines " minimum down force pressure " cam lever positions.Promoting the relevant of axis 15
Pivot position, pull rod 18 apply minimal compression power on bushing 19.Compressed spring 21 is by minimally prestress.The compression
The power of spring 21 is transmitted to presser bar 10 by presser foot driver 17, to generate the corresponding of sewing foot 9 during sewing machine 1 operates
Minimum down force pressure.In " minimum down force pressure " activation point, lift lever 16 is detached from from presser foot driver 17.
Fig. 4 shows " most big foot promotion " activation point.To reach the position from " minimum down force pressure " position of Fig. 3, grasp
Make stepper motor 12 so that its drive shaft turns over about 300 ° in the counterclockwise direction, as shown in Figures 3 and 4.Cam door bolt 22 is thus along suitable
Clockwise moves to cam region 24 on cam disc 13, and cam disc 13 is as leverage convex in cam region 24
On wheel door bolt 22.In the position, lift lever 16 along be fixed to frame bushing 20 direction, resist compressed spring 21 compressing force to
Upper pressing presser foot driver 17, and presser bar 10 is made to promote sewing foot 9.Meanwhile pull rod 18 is located at inactive (not working) position
It sets.
Fig. 5 shows " maximum down force pressure " activation point.Compared to Fig. 3, stepper motor 12, which changes into its drive shaft, makes cam
Disk 13-is compared is pivoted past about 210 ° according to the position-of Fig. 3 along clockwise direction.The cam door bolt 22 of cam lever 14 in this case
" maximum down force pressure " cam region 25 is advanced on cam disc 13 in the counterclockwise direction.In the position, pull rod 18 is due to inclined
The heart is connected to lift lever 15 and moves downward, and correspondingly applies pulling force on bushing 19, and the bushing 19 is correspondingly by pull rod 18
Farthest it is pressed downward.Compressed spring 21 is by farthest prestress as a result,.The result is that presser bar 10 and sewing foot 9
Apply maximum down force pressure on material to be sewed during sewing machine 1 operates.In " maximum down force pressure " position, lift lever
16 are detached from from presser foot driver 17.
Cam disc 13 and the therefore cooperation in this way of cam lever 14, so that the promotion of sewing foot 9 is along a rotation side of cam disc
To progress, another direction of rotation of the drives edge of pressure-regulating device is carried out.
Spacer step in " minimum down force pressure " cam lever position (Fig. 3) and " maximum down force pressure " cam lever position (Fig. 5)
Adjustable range into the drive shaft of motor 12 is greater than 180 °.
In " maximum down force pressure " position, cam region 25 is also used as backstop, for use in the positioning of stepper motor 12.For
This, stepper motor 12 is moved to " maximum down force pressure " activation point, is formed until cam door bolt 22 is rested in by cam region 25
Backstop on.The cam region 25 for being configured to backstop is not needed using the other positioning that may be formed by light barrier or inductive switch
Sensor.
Stepper motor 12 for example can pass through the pedal-driven of the sewing machine 1 promoted for foot by operator.
To preset down force pressure, can be preconditioned by the control device 26 schematically shown in Fig. 1.Control dress
It sets 26 and stepper motor 12 is signally attached in not specifically illustrated mode.
Claims (5)
1. a kind of sewing machine (1), the sewing machine include:
At least one sewing foot (9), for pushing material to be sewed during sewing,
Pressure-regulating device, for presetting down force pressure, the sewing foot (9) is when pushing the material wait sew by the pushing
Pressure is applied on the material to be sewed,
Lifting device, for promoting the sewing foot (9),
It is used for the shared driving device (12) of the pressure-regulating device and the lifting device,
Wherein, cam disc (13) is un-rotatably arranged in the drive shaft of the shared driving device (12), the cam disc
(13) it cooperates with cam lever (14), is on the one hand used to promote the sewing foot (9), be on the other hand used to that the pressure is driven to adjust
Device, and
Wherein, the cam disc (13) cooperates in this way with the cam lever (14), so that along the cam disc (13)
A direction of rotation promote the sewing foot (9), and described in driving along another direction of rotation of the cam disc (13)
Pressure-regulating device.
2. sewing machine according to claim 1, which is characterized in that the cam disc (13) has cam recess portion (23), uses
In default " minimum down force pressure " cam lever position.
3. sewing machine according to claim 1, which is characterized in that including promoting axis (15), to be used for from the cam lever
(14) handover operation power is transmitted to the sewing foot (9).
4. sewing machine according to claim 1, which is characterized in that the shared driving device (12) is configured to stepping electricity
Machine.
5. sewing machine according to claim 1, which is characterized in that the drive shaft of the shared driving device (12) is " most
Adjustable range between small down force pressure " cam lever position and " maximum down force pressure " cam lever position is greater than 180 °.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014213877.9A DE102014213877A1 (en) | 2014-07-16 | 2014-07-16 | sewing machine |
| DE102014213877.9 | 2014-07-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105274739A CN105274739A (en) | 2016-01-27 |
| CN105274739B true CN105274739B (en) | 2019-07-19 |
Family
ID=53514092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510414155.4A Active CN105274739B (en) | 2014-07-16 | 2015-07-15 | Sewing machine |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2975169B1 (en) |
| JP (1) | JP6518534B2 (en) |
| KR (1) | KR20160009497A (en) |
| CN (1) | CN105274739B (en) |
| DE (1) | DE102014213877A1 (en) |
| TW (1) | TWI681091B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6603525B2 (en) * | 2015-09-18 | 2019-11-06 | Ｊｕｋｉ株式会社 | sewing machine |
| CN106637710B (en) * | 2016-12-16 | 2023-01-03 | 浙江中捷缝纫科技有限公司 | Presser foot drive arrangement |
| CN106757826B (en) * | 2016-12-22 | 2022-09-30 | 浙江中捷缝纫科技有限公司 | Pressing device of sewing machine presser foot |
| CN108411504B (en) * | 2017-02-10 | 2022-01-07 | Juki株式会社 | Sewing machine |
| DE102018206088A1 (en) * | 2018-04-20 | 2019-10-24 | Dürkopp Adler AG | sewing machine |
| CN111379083A (en) * | 2018-12-30 | 2020-07-07 | 浙江中捷缝纫科技有限公司 | Presser foot lifting device, sewing machine and control method of presser foot lifting device |
| CN111304839A (en) * | 2020-03-26 | 2020-06-19 | 浙江广和缝纫机有限公司 | Presser foot pressure control device of sewing machine |
| CN116065307A (en) * | 2020-10-07 | 2023-05-05 | 浙江杜马缝纫机股份有限公司 | Flat seaming machine and winding device thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06238078A (en) * | 1993-02-22 | 1994-08-30 | Brother Ind Ltd | Sewing machine |
| JPH07231991A (en) * | 1994-02-22 | 1995-09-05 | Tokai Ind Sewing Mach Co Ltd | Fabric presser assembly of sewing machine |
| CN1199109A (en) * | 1997-05-09 | 1998-11-18 | 株式会社巴鲁丹 | Presser foot device for sewing machine |
| CN1676716A (en) * | 2004-03-31 | 2005-10-05 | 兄弟工业株式会社 | Presser foot lifting device for sewing machine |
| CN101139781A (en) * | 2007-10-18 | 2008-03-12 | 中捷缝纫机股份有限公司 | Automatic sewing device |
| CN101545179A (en) * | 2008-03-29 | 2009-09-30 | 杜尔克普-阿德勒股份公司 | Sewing machine |
| CN103382628A (en) * | 2012-05-02 | 2013-11-06 | 密涅瓦博斯科维采公司 | Sewing machine |
| CN103710888A (en) * | 2012-09-28 | 2014-04-09 | 兄弟工业株式会社 | Sewing machine and sewing machine controlling method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3682360B2 (en) * | 1997-05-09 | 2005-08-10 | 株式会社バルダン | Sewing machine presser foot |
| JP2002159769A (en) * | 2000-11-24 | 2002-06-04 | Janome Sewing Mach Co Ltd | Sewing machine provided with presser bar pressure regulator and sewing machine provided with presser bar lifter |
| TWM377431U (en) * | 2009-07-24 | 2010-04-01 | Rui-Wen Chen | Cutting device of sewing machine |
| CN202658372U (en) * | 2012-05-04 | 2013-01-09 | 东莞市顺机机械科技有限公司 | Middle presser foot lifting mechanism for sewing machine |
-
2014
- 2014-07-16 DE DE102014213877.9A patent/DE102014213877A1/en not_active Withdrawn
-
2015
- 2015-07-07 EP EP15175573.3A patent/EP2975169B1/en active Active
- 2015-07-08 KR KR1020150096920A patent/KR20160009497A/en unknown
- 2015-07-14 JP JP2015140272A patent/JP6518534B2/en active Active
- 2015-07-15 TW TW104122900A patent/TWI681091B/en active
- 2015-07-15 CN CN201510414155.4A patent/CN105274739B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06238078A (en) * | 1993-02-22 | 1994-08-30 | Brother Ind Ltd | Sewing machine |
| JPH07231991A (en) * | 1994-02-22 | 1995-09-05 | Tokai Ind Sewing Mach Co Ltd | Fabric presser assembly of sewing machine |
| CN1199109A (en) * | 1997-05-09 | 1998-11-18 | 株式会社巴鲁丹 | Presser foot device for sewing machine |
| CN1676716A (en) * | 2004-03-31 | 2005-10-05 | 兄弟工业株式会社 | Presser foot lifting device for sewing machine |
| CN1676716B (en) * | 2004-03-31 | 2010-08-18 | 兄弟工业株式会社 | Presser foot lifting device for sewing machine |
| CN101139781A (en) * | 2007-10-18 | 2008-03-12 | 中捷缝纫机股份有限公司 | Automatic sewing device |
| CN101545179A (en) * | 2008-03-29 | 2009-09-30 | 杜尔克普-阿德勒股份公司 | Sewing machine |
| CN103382628A (en) * | 2012-05-02 | 2013-11-06 | 密涅瓦博斯科维采公司 | Sewing machine |
| CN103710888A (en) * | 2012-09-28 | 2014-04-09 | 兄弟工业株式会社 | Sewing machine and sewing machine controlling method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6518534B2 (en) | 2019-05-22 |
| DE102014213877A1 (en) | 2016-01-21 |
| CN105274739A (en) | 2016-01-27 |
| EP2975169A1 (en) | 2016-01-20 |
| TWI681091B (en) | 2020-01-01 |
| JP2016022382A (en) | 2016-02-08 |
| KR20160009497A (en) | 2016-01-26 |
| EP2975169B1 (en) | 2017-11-29 |
| TW201612377A (en) | 2016-04-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210811 Address after: Bielefeld, Germany Patentee after: Durkep Adler Co.,Ltd. Address before: Bielefeld, Germany Patentee before: Dukepu Aihua JSC |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Bielefeld, Germany Patentee after: Dukepu Aihua Co.,Ltd. Country or region after: Germany Address before: Bielefeld, Germany Patentee before: Durkep Adler Co.,Ltd. Country or region before: Germany |