CN105696207B - The presser foot lifter control method of sewing machine - Google Patents

The presser foot lifter control method of sewing machine Download PDF

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Publication number
CN105696207B
CN105696207B CN201610297959.5A CN201610297959A CN105696207B CN 105696207 B CN105696207 B CN 105696207B CN 201610297959 A CN201610297959 A CN 201610297959A CN 105696207 B CN105696207 B CN 105696207B
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China
Prior art keywords
foot lifter
presser foot
presser
sewing machine
pedal
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CN201610297959.5A
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Chinese (zh)
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CN105696207A (en
Inventor
甘海春
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Zhejiang Zobow Mechanical and Electrical Tech Co Ltd
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Zhejiang Zobow Mechanical and Electrical Tech Co Ltd
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Priority to CN201610297959.5A priority Critical patent/CN105696207B/en
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    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B29/00Pressers; Presser feet
    • D05B29/02Presser-control devices
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B69/00Driving-gear; Control devices
    • D05B69/10Electrical or electromagnetic drives

Abstract

The present invention provides a kind of presser foot lifter control method of sewing machine comprising following steps:1)During the work time, the master controller of sewing machine detects whether sewing machine is to stop sewing state to sewing machine in real time, if it is carries out step 2)If otherwise continuing to detect;2)The presser feet height fed back by presser feet height detecting device judges whether there is cloth below presser feet;Step 3 is carried out if being judged as YES)If being judged as otherwise completing full presser foot lifter;3)Pedal current state is obtained, judges whether pedal current state and the pedal pre-existing state in the master controller are consistent, the pedal pre-existing state carries out the signal of half lift as presser feet is started;If half presser foot lifter is then completed in judgement, if judging otherwise to complete full presser foot lifter.The present invention improves presser foot lifter efficiency.

Description

The presser foot lifter control method of sewing machine
Technical field
The present invention relates to sewing machine technique fields, more particularly to a kind of presser foot lifter control method of sewing machine.
Background technology
With the continuous development of industry, the intelligence degree of sewing machine is also higher and higher, while to habilimentation and sewing The requirement of working efficiency is also higher and higher, especially the working efficiency of operation sewing machine.For flat seam machine due to sewing When be frequently necessary to carry out sewing the sewing of L-shaped corner, that is, while being sewn into edge, needs to execute and lifts presser feet, rotates 90 ° of sewing (specific angle is depending on different sewings), then put down the process that presser feet continues sewing.This process is for artificial knee The sewing machine of reclining is more advantageous, can be slightly lifted by control presser feet taking human as knee is pushed, then adjusts the position of sewing, and Quick set-down presser feet;And for the machine of electronic presser foot lifter, in particular with the machine of the electronic presser foot lifter of electromagnet, each presser feet Presser feet must be made to be raised to the scheduled height of machinery completely when lifting, after worker rotates sewing, then put down presser feet.This both of which Centre takes and differs greatly.
Chinese patent 201310113929.0 discloses a kind of built-in automatic needle-foot-lifting mechanism of sewing machine, including with lower part Part:Casing, the casing include a uprights, and a cavity is equipped in uprights;Linear actuator is fixedly mounted on the sky Intracavitary, linear actuator include one can be with the draw bar of straight reciprocating motion;The rear pin hole of lever and the end of draw bar afterwards It is hinged, pin hole is rotatably connected to by axis pin on casing before first, and the distance of pin hole is more than the before rear pin hole to first Distance of the pin hole to pin hole before first before two;Preceding lever includes three pin holes, and the first pin hole is rotatably connected to by axis pin On casing;Second pin hole is hinged with presser feet lifter plate;Pin hole is hinged before the rear end of pull rod and the second of rear lever, pull rod Front end and the third pin hole of preceding lever are hinged.Sewing machine disclosed in this patent is electronic presser foot lifter, electronic using electromagnet Presser foot lifter must make presser feet be raised to the scheduled height of machinery completely, after worker rotates sewing, then put down when each presser feet lifts Presser feet.
Therefore, it is necessary to a kind of presser foot lifter control methods improving presser foot lifter efficiency.
Invention content
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of controls of the presser foot lifter of sewing machine Method, for solving the problems, such as that lifting pressre of sewing machine efficiency is low in the prior art.
In order to achieve the above objects and other related objects, the present invention provides a kind of presser foot lifter control method of sewing machine, institute Presser foot lifter control method is stated to include the following steps:
1) during the work time, the master controller of sewing machine detects whether sewing machine is to stop sewing shape to sewing machine in real time State if it is carries out step 2), if otherwise continuing to detect;
2) the presser feet height fed back by presser feet height detecting device judges whether there is cloth below presser feet;If being judged as YES Step 3) is then carried out, if being judged as otherwise completing full presser foot lifter;
3) pedal current state is obtained, judges whether is pedal pre-existing state in pedal current state and the master controller Unanimously, the pedal pre-existing state carries out half signal lifted as presser feet is started;If half presser foot lifter is then completed in judgement, if judging Otherwise full presser foot lifter is completed.
Preferably, the pedal pre-existing state is:Pedal is partly counter, which to be stepped on, pedal is all-trans steps on or pedal neutrality is motionless.
Preferably, the detailed process of half presser foot lifter of completion is in the step 3):The pedal current state is stepped on described When plate pre-existing state is identical, the main controller controls reduce the driving force for completing presser foot lifter, and in real time by presser feet height Presser feet height is compared when the presser feet height of degree detection device feedback is lifted with preset half, until presser feet height detecting device is anti- Presser feet height is equal when the presser feet height of feedback is lifted with preset half, stops presser foot lifter action, so far completes half presser foot lifter.
Preferably, the driving force for completing presser foot lifter is generated by electromagnet, is believed by the pulse of solenoid driver circuit Number change width controls the size variation of presser foot lifter driving force.
Preferably, the control process of the presser foot lifter driving force size variation is:The pulse of the solenoid driver circuit Signal is rectangular pulse, and the length of the top duration of rectangular pulse is corresponding with presser foot lifter driving force size.
As described above, the presser foot lifter control method of the sewing machine of the present invention, has the advantages that:Using to pedal shape The analysis of state, lifts replacement presser feet with presser feet half and lifts entirely, improves presser feet efficiency of movement with this, and presser feet half is lifted by controlling presser foot lifter Driving force come realize automatically, further improve presser foot lifter efficiency of movement, raising working efficiency.
Description of the drawings
Fig. 1 is shown as the flow chart of the presser foot lifter control method of the sewing machine of the present invention.
Fig. 2 is shown as the system block diagram of the presser foot lifter control method of the sewing machine of the present invention.
Fig. 3 is shown as the pulse signal schematic diagram of the solenoid driver circuit of the present invention.
Component label instructions
1 master controller
2 pedals
3 presser feet height sensors
4 presser foot lifter electromagnet
Specific implementation mode
Illustrate that embodiments of the present invention, those skilled in the art can be by this explanations by particular specific embodiment below Content disclosed by book understands other advantages and effect of the present invention easily.
It please refers to Fig.1 to Fig.3.It should be clear that structure, ratio, size etc. depicted in this specification institute attached drawing, only to Coordinate the revealed content of specification, so that those skilled in the art understands and reads, being not limited to the present invention can be real The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size It is whole, in the case where not influencing the effect of present invention can be generated and the purpose that can reach, should all still fall in disclosed skill In the range of art content can cover.Meanwhile in this specification it is cited as "upper", "lower", "left", "right", " centre " and The term of " one " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness It is altered or modified, in the case where changing technology contents without essence, when being also considered as the enforceable scope of the present invention.
The present invention provides a kind of presser foot lifter control method of sewing machine, this presser foot lifter control method uses control shown in Fig. 2 System processed, control system include detecting the presser feet height sensors 3 of presser feet height, presser feet being driven to lift the presser foot lifter electromagnetism fallen Iron 4, pedal 2, above-mentioned each mechanism are connected with the master controller of sewing machine 1, realize the presser foot lifter control method of the present invention, packet Include following steps:As shown in Figure 1,
1) during the work time, whether detection sewing machine is to stop sewing shape to the master controller 1 of sewing machine to sewing machine in real time State if it is carries out step 2), if otherwise continuing to detect;
2) pressure is judged by the presser feet height of presser feet height detecting device (the present embodiment is presser feet height sensors 3) feedback Whether underfooting side has cloth;Step 3) is carried out if being judged as YES, if being judged as otherwise completing full presser foot lifter;
3) current state for obtaining pedal 2, judges pedal current state and the pedal pre-existing state in the master controller 1 Whether consistent, the pedal pre-existing state carries out the signal of half lift as presser feet is started;If half presser foot lifter is then completed in judgement, sentence If otherwise disconnected complete full presser foot lifter.Pedal pre-existing state in the present embodiment is:Pedal is partly counter, which to be stepped on, pedal is all-trans steps on or pedal It is neutral motionless, pedal pre-existing state is set as needed.
The present invention sewing machine presser foot lifter control method, using judge pedal current state determine be full presser foot lifter also Half presser foot lifter, with this substitute it is existing no matter pedal is in that state will carry out full presser foot lifter, half presser foot lifter its acted The journey time is short, therefore, so that half presser foot lifter is substituted full presser foot lifter, improves presser foot lifter efficiency, namely improve the work of sewing machine Efficiency.
Above-mentioned steps 3) in complete half presser foot lifter detailed process be:See shown in Fig. 1 and Fig. 2, pedal current state and institute State pedal pre-existing state it is identical when, the control of master controller 1 reduces the driving force for completing presser foot lifter, and in real time examines presser feet height Presser feet height is compared when surveying the presser feet height of device feedback and preset half lift, until presser feet height detecting device feedback Presser feet height is equal when presser feet height is lifted with preset half, stops presser foot lifter action, so far completes half presser foot lifter.The present embodiment is logical It crosses and reduces the driving force of presser foot lifter to realize half presser foot lifter, be easy to accurately control, improve efficiency.
The driving force of completion presser foot lifter in the present embodiment is generated by electromagnet, presser foot lifter electromagnet 4 as shown in Figure 2, Changed by the pulse signal width of solenoid driver circuit to control the size variation of presser foot lifter driving force.It is lifted in the present embodiment The control process of presser feet driving force size variation is:As shown in Figure 3, the pulse signal of solenoid driver circuit is rectangular pulse, The length of the top duration of rectangular pulse is corresponding with presser foot lifter driving force size.It refers specifically to:Pulse signal waveform is in The time of high level becomes larger, that is, the time for maintaining presser feet to lift is elongated, then output just becomes larger to the power of presser feet;Conversely, pulse is believed The time that number waveform is in high level becomes smaller, then maintains the time that presser feet lifts to shorten, that is, export and just become smaller to the pressure of presser feet.
This implementation is specially:Master controller 1 is sentenced by judging the state for the presser feet height sensors 3 being installed on presser feet The height that disconnected presser feet lifts, if presser feet lift it is excessively high (driving force of solenoid actuated presser foot lifter be more than presser feet on reset bullet Spring), then master controller 1 will reduce the time of high level in pulse signal waveform, then the power of presser foot lifter will become smaller, when presser feet lifts Lift power be less than when being installed on resetting spring on presser feet, presser feet will press down, until pressing on cloth.Above-mentioned presser feet height Detection device may be the inductor for the pressure type being installed on needle plate, and master controller can be by perceiving presser feet to needle plate Pressure come with presser feet height match, the pressure of presser foot lifter electromagnet is controlled with this.
In conclusion the presser foot lifter control method of the sewing machine of the present invention, determines to be using pedal current state is judged Full presser foot lifter or half presser foot lifter, with this substitute it is existing no matter pedal be in that state will carry out full presser foot lifter, half lifts and presses Its action process time of foot is short, therefore, so that half presser foot lifter is substituted full presser foot lifter, improves presser foot lifter efficiency, namely improve seam It threads the working efficiency of machine.So the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe The personage for knowing this technology can all carry out modifications and changes to above-described embodiment without violating the spirit and scope of the present invention.Cause This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as At all equivalent modifications or change, should by the present invention claim be covered.

Claims (5)

1. a kind of presser foot lifter control method of sewing machine, special for the presser foot lifter control with turning sewing during sewing Sign is that the presser foot lifter control method includes the following steps:
1)During the work time, the master controller of sewing machine detects whether sewing machine is to stop sewing state to sewing machine in real time, such as Fruit is to carry out step 2)If otherwise continuing to detect;
2)The presser feet height fed back by presser feet height detecting device judges whether there is cloth below presser feet;If being judged as YES into Row step 3)If being judged as otherwise completing full presser foot lifter;
3)Obtain pedal current state, judge pedal pre-existing state in pedal current state and the master controller whether one It causes, the pedal pre-existing state carries out the signal of half lift as presser feet is started;If half presser foot lifter is then completed in judgement, judge if not Then complete full presser foot lifter.
2. the presser foot lifter control method of sewing machine according to claim 1, it is characterised in that:The pedal pre-existing state For:Pedal is partly counter, which to be stepped on, pedal is all-trans steps on or pedal neutrality is motionless.
3. the presser foot lifter control method of sewing machine according to claim 1, it is characterised in that:The step 3)It is middle to complete half The detailed process of presser foot lifter is:When the pedal current state is identical as the pedal pre-existing state, the main controller controls Reduce the driving force for completing presser foot lifter, and in real time by the presser feet height of presser feet height detecting device feedback and preset half Presser feet height is compared when lift, until presser feet height when the presser feet height of presser feet height detecting device feedback is lifted with preset half It is equal, stop presser foot lifter action, so far completes half presser foot lifter.
4. the presser foot lifter control method of sewing machine according to claim 3, it is characterised in that:The drive for completing presser foot lifter Power is generated by electromagnet, is changed by the pulse signal width of solenoid driver circuit to control the size of presser foot lifter driving force Variation.
5. the presser foot lifter control method of sewing machine according to claim 4, it is characterised in that:The presser foot lifter driving force is big The control process of small variation is:The pulse signal of the solenoid driver circuit is rectangular pulse, and the top of rectangular pulse continues The length of time is corresponding with presser foot lifter driving force size.
CN201610297959.5A 2016-05-06 2016-05-06 The presser foot lifter control method of sewing machine Active CN105696207B (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018015426A (en) * 2016-07-29 2018-02-01 ブラザー工業株式会社 Sewing machine and control method of sewing machine
CN108103675B (en) * 2017-12-14 2020-07-07 浙江众邦机电科技有限公司 Chain type lockstitch sewing machine and presser foot lifting control method and system thereof
CN112411042B (en) * 2020-10-20 2022-07-05 诸暨玛雅电器机械有限公司 Presser foot self-adaption method
CN115323632B (en) * 2021-05-11 2023-06-13 杰克科技股份有限公司 Sewing machine control method

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US5495817A (en) * 1995-05-22 1996-03-05 Blough-Wagner Manufacturing Co., Inc. Pedal mechanism for operating presser and motor in sewing machines
US5899157A (en) * 1997-03-25 1999-05-04 Brother Kogyo Kabushiki Kaisha Presser foot device of sewing machine having a presser foot ascent detection device and a control mechanism
CN1417398A (en) * 2001-10-30 2003-05-14 重机公司 Stitch elevator for sewing machine
CN201125318Y (en) * 2007-10-19 2008-10-01 杜明兴 Sewing machine lift presser foot clearance convenient adjusting structure
CN101713130A (en) * 2008-10-03 2010-05-26 Juki株式会社 Seamer
CN103866496A (en) * 2014-03-31 2014-06-18 新杰克缝纫机股份有限公司 Sewing material detecting device and automatic presser foot height adjusting system for sewing machine
CN203890638U (en) * 2014-05-21 2014-10-22 湖南省兴德缝制自动化有限公司 Automatic lifting device for sewing machine presser foot component
CN105420937A (en) * 2015-09-20 2016-03-23 浙江中捷缝纫科技有限公司 Presser foot lifting control device for sewing machine
CN105463710A (en) * 2015-12-25 2016-04-06 杰克缝纫机股份有限公司 Presser foot lifting mechanism of sewing machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5495817A (en) * 1995-05-22 1996-03-05 Blough-Wagner Manufacturing Co., Inc. Pedal mechanism for operating presser and motor in sewing machines
US5899157A (en) * 1997-03-25 1999-05-04 Brother Kogyo Kabushiki Kaisha Presser foot device of sewing machine having a presser foot ascent detection device and a control mechanism
CN1417398A (en) * 2001-10-30 2003-05-14 重机公司 Stitch elevator for sewing machine
CN201125318Y (en) * 2007-10-19 2008-10-01 杜明兴 Sewing machine lift presser foot clearance convenient adjusting structure
CN101713130A (en) * 2008-10-03 2010-05-26 Juki株式会社 Seamer
CN103866496A (en) * 2014-03-31 2014-06-18 新杰克缝纫机股份有限公司 Sewing material detecting device and automatic presser foot height adjusting system for sewing machine
CN203890638U (en) * 2014-05-21 2014-10-22 湖南省兴德缝制自动化有限公司 Automatic lifting device for sewing machine presser foot component
CN105420937A (en) * 2015-09-20 2016-03-23 浙江中捷缝纫科技有限公司 Presser foot lifting control device for sewing machine
CN105463710A (en) * 2015-12-25 2016-04-06 杰克缝纫机股份有限公司 Presser foot lifting mechanism of sewing machine

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