CN102154788A - Trimming and presser foot lifting device of bar tack sewing machine - Google Patents

Trimming and presser foot lifting device of bar tack sewing machine Download PDF

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Publication number
CN102154788A
CN102154788A CN2011100803444A CN201110080344A CN102154788A CN 102154788 A CN102154788 A CN 102154788A CN 2011100803444 A CN2011100803444 A CN 2011100803444A CN 201110080344 A CN201110080344 A CN 201110080344A CN 102154788 A CN102154788 A CN 102154788A
Authority
CN
China
Prior art keywords
trimming
presser foot
crank
cam
foot lifting
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.)
Pending
Application number
CN2011100803444A
Other languages
Chinese (zh)
Inventor
王德勤
陆少金
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHANGZHOU INDUSTRIAL SEWING MACHINES Co Ltd
Original Assignee
CHANGZHOU INDUSTRIAL SEWING MACHINES Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHANGZHOU INDUSTRIAL SEWING MACHINES Co Ltd filed Critical CHANGZHOU INDUSTRIAL SEWING MACHINES Co Ltd
Priority to CN2011100803444A priority Critical patent/CN102154788A/en
Publication of CN102154788A publication Critical patent/CN102154788A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a trimming and presser foot lifting device of a bar tack sewing machine. The device comprises a head and is characterized in that a motor base is fixed at the front end of the head; a stepping motor is fixed at one side of the motor base; a trimming crank with a trimming crank ball at the end is movably arranged at the other side of the motor base; a trimming groove cam and a presser foot lifting cam are sleeved on the output shaft of the stepping motor in sequence; the trimming groove cam is provided with an inner roll groove; the trimming crank ball is arranged in the inner roll groove and can roll along the inner roll groove in a ring-shaped manner; and the presser foot lifting cam is connected with a presser foot lifting crank connecting rod by a presser foot lifting crank shaft. The device has the following beneficial effects: the trimming groove cam and the presser foot lifting cam are separately arranged, are simple to process and are convenient to install; the numerical values of trimming and presser foot lifting can be conveniently adjusted and the aim of independently adjusting the length of the thread head during trimming, the time spent on lifting the presser foot and the height to which the presser foot is lifted is achieved, thus being beneficial to improvement of the control precision of trimming and presser foot lifting.

Description

Reinforce seam sewing machine thread-trimming lifter-presser foot device
Technical field
The present invention relates to the sewing machine technique field, especially a kind of reinforcing seam sewing machine thread-trimming lifter-presser foot device.
Background technology
Reinforce seam sewing machine and be a kind of need reinforcement seam and have the Sewing machines of pattern repeat seam among a small circle such as clothes case and bag that is used for,, have accurate localization, functions such as presser foot lifter, automatic shearing automatically by computer program control.The presser foot lifter and the used cam of trimming of similar products at home and abroad have adopted same part at present, by console presser feet and the trimming action simultaneously of a cam link mechanism, this version, its weak point is to install comparatively trouble of location, presser foot lifter cam and trimming cam can't be adjusted respectively, realize difficulty of precision control ratio.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiency in the prior art, a kind of reinforcing seam sewing machine thread-trimming lifter-presser foot device is provided, can't adjust respectively to solve on the present reinforcing seam sewing machine presser foot lifter cam and trimming cam, the precision control ratio is the problem of difficulty.
The technical solution adopted for the present invention to solve the technical problems is: a kind of reinforcing seam sewing machine thread-trimming lifter-presser foot device, comprise head, the head front end is fixed with motor cabinet, motor cabinet is fixed with stepper motor on one side, the another side is provided with the trimming crank that the end has trimming crank ball, be set with trimming grooved cam and presser foot lifter cam on the output shaft of stepper motor successively, the trimming grooved cam has interior slot rolling, trimming crank ball is positioned at described slot rolling and can rolls along the slot rolling annular, and the presser foot lifter cam is connected with the presser foot lifter crank connecting link by the presser foot lifter crank axle.
Specifically, described trimming crank middle part is provided with the crank cover, is fixed with crank ball axle on the motor cabinet, and crank cover turning set is on crank ball axle; Described presser foot lifter cam fixes by fixed axis and trimming grooved cam.
The invention has the beneficial effects as follows: the present invention separates setting with the trimming grooved cam with the presser foot lifter cam, processing is simple, be convenient to install, can conveniently adjust the numerical value of trimming and presser foot lifter, the purpose of the height of the time of the end of a thread length, presser foot lifter and presser foot lifter when realizing regulating trimming separately, thus help improving the control accuracy of trimming and presser foot lifter.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of trimming crank of the present invention and trimming grooved cam.
Fig. 3 is the structural representation of presser foot lifter cam of the present invention.
Fig. 4 is the decomposition texture schematic diagram of trimming crank of the present invention, trimming grooved cam and presser foot lifter cam.
1. heads, 2. motor cabinets, 3. stepper motors, 4. trimming crank balls, 5. trimming cranks, 6. trimming grooved cams, 60. interior slot rolling 7. presser foot lifter cams 8. presser foot lifter crank axles 9. presser foot lifter crank connecting links 10. cranks overlap 11. crank ball axles, 12. fixed axis among the figure
The specific embodiment
The present invention is further illustrated with preferred embodiment in conjunction with the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
As Fig. 1~a kind of reinforcing seam sewing machine thread-trimming lifter-presser foot device shown in Figure 4, comprise head 1, be fixed with motor cabinet 2 at head 1 front end, be fixed with stepper motor 3 on wallboard one side of motor cabinet 2, the output shaft of stepper motor 3 passes the wallboard of motor cabinet 2, the another side of the wallboard of motor cabinet 2 is provided with trimming crank 5, be equipped with crank cover 10 at trimming crank 5 middle parts, be fixed with crank ball axle 11 on the wallboard of motor cabinet 2, crank overlaps 10 turning sets on crank ball axle 11 and trimming crank 5 can be rotated around crank ball axle 11, be fixed with trimming crank ball 4 in the end of trimming crank 5, be set with trimming grooved cam 6 and presser foot lifter cam 7 on the output shaft of stepper motor 3 successively, this presser foot lifter cam 7 fixes by a fixed axis 12 and trimming grooved cam 6, after presser foot lifter cam 7 is sleeved on the output shaft of stepper motor 3, available dog screw is adjusted to correct angle position with it, the interior slot rolling 60 that on trimming grooved cam 6, has an annular, trimming crank ball 4 is positioned at described slot rolling 60 and can makes annular along slot rolling 60 and roll, thereby drive trimming crank 5 and do corresponding oscillating motion, thereby make on the Sewing machines and cut off the end of a thread with the blade of trimming crank 5 interlocks, presser foot lifter cam 7 then is connected with presser foot lifter crank connecting link 9 by presser foot lifter crank axle 8, motion by presser foot lifter cam 7 drives the corresponding swing of presser foot lifter crank connecting link 9 dos, realizes that the height of sewing-machine foot is regulated.
The present invention separates setting with the trimming grooved cam with the presser foot lifter cam, processing is simple, save material, reduced the requirement that is associated between the single part, be convenient to install, the more important thing is and an original cam is controlled trimming simultaneously and two actions of presser foot lifter are separated, can conveniently adjust the numerical value of trimming and presser foot lifter, the end of a thread length, the time of presser foot lifter and the height of presser foot lifter when realizing regulating trimming separately, thus help improving the control accuracy of trimming and presser foot lifter action.
The foregoing description only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the personage that is familiar with this technology can understand content of the present invention and is implemented; can not limit protection scope of the present invention with this; all equivalences that spirit essence is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.

Claims (3)

1. reinforce seam sewing machine thread-trimming lifter-presser foot device for one kind, comprise head (1), it is characterized in that: head (1) front end is fixed with motor cabinet (2), motor cabinet is fixed with stepper motor (3) on (2) one sides, the another side is provided with the trimming crank (5) that the end has trimming crank ball (4), be set with trimming grooved cam (6) and presser foot lifter cam (7) on the output shaft of stepper motor (3) successively, trimming grooved cam (6) has interior slot rolling (60), trimming crank ball (4) is positioned at described slot rolling (60) and can rolls along slot rolling (60) annular, and presser foot lifter cam (7) is connected with presser foot lifter crank connecting link (9) by presser foot lifter crank axle (8).
2. reinforcing seam sewing machine thread-trimming lifter-presser foot device according to claim 1, it is characterized in that: described trimming crank (5) middle part is provided with crank cover (10), be fixed with crank ball axle (11) on the motor cabinet (2), crank cover (10) turning set is on crank ball axle (11).
3. reinforcing seam sewing machine thread-trimming lifter-presser foot device according to claim 1 is characterized in that: described presser foot lifter cam (7) fixes by fixed axis (12) and trimming grooved cam (6).
CN2011100803444A 2011-03-31 2011-03-31 Trimming and presser foot lifting device of bar tack sewing machine Pending CN102154788A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011100803444A CN102154788A (en) 2011-03-31 2011-03-31 Trimming and presser foot lifting device of bar tack sewing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011100803444A CN102154788A (en) 2011-03-31 2011-03-31 Trimming and presser foot lifting device of bar tack sewing machine

Publications (1)

Publication Number Publication Date
CN102154788A true CN102154788A (en) 2011-08-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011100803444A Pending CN102154788A (en) 2011-03-31 2011-03-31 Trimming and presser foot lifting device of bar tack sewing machine

Country Status (1)

Country Link
CN (1) CN102154788A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103320974A (en) * 2012-03-20 2013-09-25 贺欣机械厂股份有限公司 Press foot and wire cutting drive device of sewing machine
CN103469502A (en) * 2013-09-23 2013-12-25 星锐缝纫机(嘉兴)有限公司 Automatic thread cutting device of sewing machine
CN103556407A (en) * 2013-10-28 2014-02-05 阮孟定 Sewing machine part driving device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2166145Y (en) * 1993-08-27 1994-05-25 上海缝纫机四厂 Thread-dividing mechanism button-sewing machine
CN2646176Y (en) * 2003-11-04 2004-10-06 东莞市寮步恒昌机械厂 Presser plate regulating mechanism of computerised spininess quilter
CN1757812A (en) * 2004-10-08 2006-04-12 重机公司 Sewing machine
CN2828080Y (en) * 2005-08-29 2006-10-18 中捷缝纫机股份有限公司 Mechanism for lifting pressre of sewing machine
CN101634088A (en) * 2009-06-04 2010-01-27 浙江新杰克缝纫机股份有限公司 Driving structure of thread-trimming lifter-presser foot of sewing machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2166145Y (en) * 1993-08-27 1994-05-25 上海缝纫机四厂 Thread-dividing mechanism button-sewing machine
CN2646176Y (en) * 2003-11-04 2004-10-06 东莞市寮步恒昌机械厂 Presser plate regulating mechanism of computerised spininess quilter
CN1757812A (en) * 2004-10-08 2006-04-12 重机公司 Sewing machine
CN2828080Y (en) * 2005-08-29 2006-10-18 中捷缝纫机股份有限公司 Mechanism for lifting pressre of sewing machine
CN101634088A (en) * 2009-06-04 2010-01-27 浙江新杰克缝纫机股份有限公司 Driving structure of thread-trimming lifter-presser foot of sewing machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103320974A (en) * 2012-03-20 2013-09-25 贺欣机械厂股份有限公司 Press foot and wire cutting drive device of sewing machine
CN103320974B (en) * 2012-03-20 2015-03-18 贺欣机械厂股份有限公司 Press foot and wire cutting drive device of sewing machine
CN103469502A (en) * 2013-09-23 2013-12-25 星锐缝纫机(嘉兴)有限公司 Automatic thread cutting device of sewing machine
CN103469502B (en) * 2013-09-23 2015-06-10 星锐缝纫机(嘉兴)有限公司 Automatic thread cutting device of sewing machine
CN103556407A (en) * 2013-10-28 2014-02-05 阮孟定 Sewing machine part driving device

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PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20110817

C02 Deemed withdrawal of patent application after publication (patent law 2001)