CN107164884A - A kind of middle presser foot device of sewing machine and sewing machine - Google Patents

A kind of middle presser foot device of sewing machine and sewing machine Download PDF

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Publication number
CN107164884A
CN107164884A CN201710511762.1A CN201710511762A CN107164884A CN 107164884 A CN107164884 A CN 107164884A CN 201710511762 A CN201710511762 A CN 201710511762A CN 107164884 A CN107164884 A CN 107164884A
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CN
China
Prior art keywords
sewing machine
depression bar
motor
foot device
presser foot
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
CN201710511762.1A
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Chinese (zh)
Inventor
陈建
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.)
Bullmer Electromechanical Technology Co Ltd
Original Assignee
Bullmer Electromechanical Technology 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 Bullmer Electromechanical Technology Co Ltd filed Critical Bullmer Electromechanical Technology Co Ltd
Priority to CN201710511762.1A priority Critical patent/CN107164884A/en
Publication of CN107164884A publication Critical patent/CN107164884A/en
Pending legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B29/00Pressers; Presser feet
    • D05B29/02Presser-control devices

Abstract

The invention provides a kind of sewing machine and the middle presser foot device of sewing machine, belong to technical field of sewing equipment.It solves the technical problems such as the middle presser foot device regulation inconvenience of existing sewing machine.The middle presser foot device of this sewing machine includes depression bar and is connected to be installed with bogie, bogie on the presser feet of depression bar lower end, depression bar have connector;Middle presser foot device also includes motor and pendulum is pitched, and one end of pendulum fork is installed on the output shaft of motor, and the other end of pendulum fork has prong and the side of the prong dorsad driving motor output shaft;Connector is plugged in the prong of pendulum fork.The drive mechanism of middle presser feet is simplified in the present invention, motor driving pendulum fork is swung to drive depression bar reciprocating linear to act, simple in construction, is adjusted easy to maintenance;Pass through motor independence drive control depression bar and presser feet so that it, which pumps, to be controlled by the automatically controlled parameter adjustment of motor, very convenient.

Description

A kind of middle presser foot device of sewing machine and sewing machine
Technical field
The invention belongs to technical field of sewing equipment, it is related to the middle presser foot device of a kind of sewing machine and sewing machine.
Background technology
Sewing machine is to use one or more sewing thread, and one or more stitchings are formed on sewing, one or more layers is stitched The machine that material interweaves or united by a seam.Fabric and leather, plastics, the paper such as function of sewing sewing cotton, fiber crops, silk, hair, staple fibre Deng product, the stitching neat appearance stitched out, it is smooth firmly, sewing velocity is fast, easy to use, therefore is used widely.Sewing Machine generally comprises support, is provided with workbench in the upper surface of support, the presser feet for compress material is provided with above workbench, And the head with shank;Some are used for the sewing machine for sewing pattern design, and presser feet is pressed in the outer rim of sewing pattern, by being pressed Scope is larger, when eedle is extracted from the cloth of sewing, easily takes up the cloth at eedle, influences the quality of tailoring pattern, Therefore, by setting a middle presser feet at eedle, make in sewing process that cloth is pushed down by middle presser feet around eedle, improve sewing Quality.Presser feet pumps with shank in during general sewing machine sewing, at the end of sewing in presser feet lift certain altitude with Convenient sewing fabric is picked and placeed, and the middle presser feet action of sewing machine in the prior art is driven by being consolidated in the cam of sewing machine upper shaft mostly Dynamic, control is combined in middle feet motion track by cam face and associated linkages, and its movement locus is relatively fixed, generally " V " Word shape, it is impossible to adapt to the sewing demand of various fabrics.
China's patent (notification number:CN203113060U;The day for announcing:2013-08-07) disclose a kind of middle pressure of sewing machine Foot driving device, including the depression bar being connected in head of sewing machine and with middle presser feet and the power drive being enclosed on depression bar, Power drive can drive above-mentioned depression bar to move up and down, and spring is also cased with depression bar, the two ends of spring are respectively in depression bar and head Internal and have the trend that moves down in the elastic force effect down-pressed pole of spring, presser feet drive device is the driving dress with big presser feet in this Put what is be independently arranged, after the big presser feet of sewing machine compresses cloth, drive depression bar to overcome spring by power drive Elastic force is acted on and lifts middle presser feet, and second block of cloth is placed between big presser feet and middle presser feet by operating personnel again, Zhi Houzai Power drive is cut off, second block of cloth of presser feet is compressed during depression bar is moved down and will driven under the elastic force effect of spring, is then stitched Machine of threading carries out style sewing to two blocks of clothes again;In the presser feet drive device, tubular depression bar set is fixed with head, it is above-mentioned Depression bar be enclosed in depression bar set, power drive includes seal and the cylinder body being connected with depression bar, and cylinder body is enclosed on depression bar and puts, The quantity of seal is two, and seal is axially disposed between cylinder body and depression bar set along depression bar, the cylinder body between two seals Sidepiece has the air inlet run through.
In above-mentioned patent document;Middle presser feet is driven by cylinder, and is resetted by spring, the mechanism element rate of exchange It is many, complicated and adjust it is cumbersome.
The content of the invention
The present invention is directed to the above mentioned problem of existing technology presence there is provided a kind of middle presser foot device of sewing machine, of the invention Technical problem to be solved is:How the terseness of middle foot pressing mechanism of sewing machine and the convenience of regulation are improved.
The purpose of the present invention can be realized by following technical proposal:
A kind of middle presser foot device of sewing machine, including depression bar and the presser feet for being connected to depression bar lower end, it is characterised in that described Being installed with depression bar on bogie, the bogie has connector;Medium pressure pin mechanism also includes motor and pendulum is pitched, One end of the pendulum fork is installed on the output shaft of the motor, and the other end of the pendulum fork has prong and the prong is carried on the back To the side of the driving motor output shaft;The connector is plugged in the prong of the pendulum fork.
Its principle is as follows:Depression bar is vertically slidable in the technical program is arranged on the casing of sewing machine, and motor is fixed Be connected on the casing of sewing machine, the output shaft of motor can reciprocating rotation reciprocally swinging is pitched with band movable pendulum, put the pendulum of fork Dynamic lifting moves down bogie, so as to drive depression bar and presser feet to move back and forth up and down.Sewing machine is in sewing, motor Output shaft with by a small margin rotational angle act, band movable pendulum fork swings by a small margin, so as to drive depression bar and presser feet short-range Up and down reciprocatingly move along a straight line, while not influenceing sewing cloth feeding mobile, it is to avoid suture needle takes up cloth;Sewing machine sewing terminates When, driving motor output shaft rotates larger angle, to drive depression bar and presser feet significantly to move upwards, to realize lifting presser feet, The convenient purpose taken out and place sewing cloth.The drive mechanism of middle presser feet, motor driving are simplified in the technical program Pendulum fork is swung to drive depression bar reciprocating linear to act, simple in construction, is adjusted easy to maintenance;Pass through motor independence drive control Depression bar and presser feet so that it, which pumps, to be controlled by the automatically controlled parameter adjustment of motor, according to motor The change of rotational angle is very convenient come presser feet minimum point, peak, up and down motion stroke, presser lifting amount etc. in controlling; It is electric simultaneously compared with common middle presser foot device can be only formed " V " zigzag motion track (middle presser feet minimum point is a moment) The middle presser feet of control control can form various movement locus (middle presser feet minimum point can be stopped certain time), so as to adapt to various The sewing demand of sewing fabric, use is more extensive.
In the middle presser foot device of above-mentioned sewing machine, the bogie is socketed in the depression bar by fastening bolt Portion, the side of the bogie has vertical connecting portion upward, and the connector is horizontally installed on the connecting portion.So It is easy to the assembly connection of connector and pendulum fork, can realizes that motor driving pendulum fork is swung to drive depression bar past by the structure The purpose of complex line action, and it is simple and compact for structure.
In the middle presser foot device of above-mentioned sewing machine, the prong of the pendulum fork is U-shaped, and the connector is in cuboid, institute The thickness of connector is stated less than the spacing between the prong two side.Connector is embedded the prong in pendulum fork in said structure It is interior, with certain activity space, when the prong of pendulum fork is in arc trajectory, it still is able to drive bogie, depression bar and presser feet in straight Line is moved.
In the middle presser foot device of above-mentioned sewing machine, the end of the pendulum fork has adapter sleeve, and the adapter sleeve is set in Have on the output shaft of the motor, on the outer peripheral face of the adapter sleeve in the screwed hole run through, the screwed hole and be spirally connected There is jackscrew.Pendulum fork is connected on the output shaft of motor by adapter sleeve, then is fastened by jackscrew, and assembling is simple, and connection is steady Gu.
In the middle presser foot device of above-mentioned sewing machine, sewing machine includes slip cap on head, the depression bar and is provided with sliding sleeve, institute Sliding sleeve is stated to be connected on the head.It so ensure that the reliability of depression bar movement.
In the middle presser foot device of above-mentioned sewing machine, the head is provided with fixed on chute, the outer peripheral face of the depression bar There is guide pad, the guide pad is slidably arranged in the chute.So further ensure that depression bar is moved back and forth up and down steady Determine reliability.
In the middle presser foot device of above-mentioned sewing machine, the motor is servomotor or stepper motor.Servomotor With the convenient adjustment of stepper motor, control precisely reliable.
The present invention also provides a kind of sewing machine, has above-mentioned middle presser foot device in the sewing machine.
Compared with prior art, the present invention has advantages below:
1st, the drive mechanism of middle presser feet is simplified in the present invention, motor driving pendulum fork swings to drive depression bar back and forth straight Line is acted, simple in construction, is adjusted easy to maintenance.
2nd, motor independence drive control depression bar and presser feet are passed through in the present invention so that it, which pumps, to lead to Overdrive the automatically controlled parameter adjustment control of motor, presser feet minimum point in being controlled according to the change of motor rotational angle, most High point, up and down motion stroke, presser lifting amount etc., it is very convenient.
3rd, the middle presser feet of automatically controlled control can form various movement locus in the present invention, pass through the change of automatically controlled parameter, presser feet It can be stopped certain time in minimum point, and common middle presser foot device can be only formed " V " zigzag motion track, wherein presser feet is minimum Point is a moment, and presser foot device adapts to the sewing demand of various sewing fabrics in this, and use is more extensive.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of presser foot device in this.
Fig. 2 is the configuration schematic diagram of presser foot device in this.
In figure, 1, depression bar;2nd, presser feet;3rd, bogie;31st, connector;32nd, connecting portion;4th, motor;5th, pendulum fork;51、 Prong;52nd, adapter sleeve;53rd, screwed hole;54th, jackscrew;6th, fastening bolt;7th, sliding sleeve;8th, guide pad.
Embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described, But the present invention is not limited to these embodiments.
Embodiment one
As depicted in figs. 1 and 2, sewing machine includes casing and head, and the middle presser foot device of this sewing machine includes motor 4th, slip cap is provided with sliding sleeve 7 on pendulum fork 5, depression bar 1 and the presser feet 2 for being connected to the lower end of depression bar 1, depression bar 1, and sliding sleeve 7 is connected to head On;Head is provided with chute, the outer peripheral face of depression bar 1 and is installed with guide pad 8, and guide pad 8 is slidably arranged in chute;Depression bar 1 On be installed with bogie 3, bogie 3 have connector 31, pendulum fork 5 one end be installed on the output shaft of motor 4, put The other end of fork 5 has prong 51 and the side of the prong 51 dorsad output shaft of motor 4;Connector 31 is plugged on pendulum fork 5 Prong 51 in, depression bar 1 is vertically slidable to be arranged on the casing of sewing machine, and motor 4 is fixedly connected on the casing of sewing machine On, the output shaft of motor 4 can reciprocating rotation 5 reciprocally swingings are pitched with band movable pendulum, the swing of pendulum fork 5 is to lift or move down drive Moving frame 3, so as to drive depression bar 1 and presser feet 2 to move back and forth up and down.Sewing machine is in sewing, and the output shaft of motor 4 is with small The rotational angle action of amplitude, band movable pendulum fork 5 is swung by a small margin, so as to drive depression bar 1 and presser feet 2 short-range up and down reciprocatingly straight Line is moved, while not influenceing sewing cloth feeding mobile, it is to avoid suture needle takes up cloth;At the end of sewing machine is sewed, driving electricity The output shaft rotation larger angle of machine 4, to drive the significantly motion upwards of depression bar 1 and presser feet 2, to realize lifting presser feet 2, conveniently takes Go out and place the purpose of sewing cloth.
Specifically, as depicted in figs. 1 and 2, bogie 3 is socketed in the middle part of depression bar 1, bogie 3 by fastening bolt 6 Side there is vertical connecting portion 32 upward, connector 31 is horizontally installed on connecting portion 32, be so easy to connector 31 with The assembly connection of pendulum fork 5, can realize that the driving pendulum of motor 4 fork 5 is swung to drive the reciprocating linear of depression bar 1 to move by the structure The purpose of work, and it is simple and compact for structure;The prong 51 of pendulum fork 5 is U-shaped, and connector 31 is in cuboid, the thickness of connector 31 Less than the spacing between the two side of prong 51, connector 31, which is embedded in the prong 51 of pendulum fork 5, has certain activity space, pendulum When the prong 51 of fork 5 is in arc trajectory, it still is able to drive bogie 3, depression bar 1 and presser feet 2 to move linearly;The end of pendulum fork 5 With adapter sleeve 52, adapter sleeve 52 is set on the output shaft of motor 4, has the spiral shell run through on the outer peripheral face of adapter sleeve 52 Jackscrew 54 is bolted with pit 53, screwed hole 53, pendulum fork 5 is connected to by adapter sleeve 52 on the output shaft of motor 4, then is led to Cross jackscrew 54 to fasten, assembling is simple, stable connection.
Motor 4 in the present embodiment is servomotor or stepper motor, and convenient adjustment, control is precisely reliable.
Embodiment two
The present embodiment provides the middle presser foot device having in a kind of sewing machine, the sewing machine in embodiment one.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Although more having used 1, depression bar herein;2nd, presser feet;3rd, bogie;31st, connector;32nd, connecting portion;4th, drive Motor;5th, pendulum fork;51st, prong;52nd, adapter sleeve;53rd, screwed hole;54th, jackscrew;6th, fastening bolt;7th, sliding sleeve;8th, guide pad etc. Term, but it is not precluded from the possibility using other terms.It is used for the purpose of more easily describing and explaining using these terms The essence of the present invention;Any additional limitation is construed as all to disagree with spirit of the present invention.

Claims (8)

1. a kind of middle presser foot device of sewing machine, including depression bar (1) and the presser feet (2) for being connected to depression bar (1) lower end, its feature exist In being installed with the depression bar (1) on bogie (3), the bogie (3) has connector (31);Medium pressure pin mechanism Also include motor (4) and pendulum fork (5), one end of the pendulum fork (5) is installed on the output shaft of the motor (4), The other end of the pendulum fork (5) has prong (51) and the side of the prong (51) dorsad motor (4) output shaft;Institute Connector (31) is stated to be plugged in the prong (51) of the pendulum fork (5).
2. the middle presser foot device of sewing machine according to claim 1, it is characterised in that the bogie (3) passes through fastening Bolt (6) is socketed in the middle part of the depression bar (1), and the side of the bogie (3) has vertical connecting portion (32) upward, institute Connector (31) is stated to be horizontally installed on the connecting portion (32).
3. the middle presser foot device of sewing machine according to claim 2, it is characterised in that the prong (51) of the pendulum fork (5) U-shaped, the connector (31) is in cuboid, and the thickness of the connector (31) is less than between the prong (51) two side Spacing.
4. the middle presser foot device of the sewing machine according to claim 1 or 2 or 3, it is characterised in that the end of the pendulum fork (5) Portion has adapter sleeve (52), and the adapter sleeve (52) is set on the output shaft of the motor (4), the adapter sleeve (52) Outer peripheral face on have in the screwed hole (53) that runs through, the screwed hole (53) and be bolted with jackscrew (54).
5. the middle presser foot device of the sewing machine according to claim 1 or 2 or 3, it is characterised in that sewing machine includes head, Slip cap is provided with sliding sleeve (7) on the depression bar (1), and the sliding sleeve (7) is connected on the head.
6. the middle presser foot device of sewing machine according to claim 5, it is characterised in that the head is provided with chute, institute Guide pad (8) is installed with the outer peripheral face for stating depression bar (1), the guide pad (8) is slidably arranged in the chute.
7. the middle presser foot device of the sewing machine according to claim 1 or 2 or 3, it is characterised in that the motor (4) For servomotor or stepper motor.
8. a kind of sewing machine, it is characterised in that the sewing machine has the middle presser feet described in the claims 1-7 any one Mechanism.
CN201710511762.1A 2017-06-27 2017-06-27 A kind of middle presser foot device of sewing machine and sewing machine Pending CN107164884A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710511762.1A CN107164884A (en) 2017-06-27 2017-06-27 A kind of middle presser foot device of sewing machine and sewing machine

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Application Number Priority Date Filing Date Title
CN201710511762.1A CN107164884A (en) 2017-06-27 2017-06-27 A kind of middle presser foot device of sewing machine and sewing machine

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112226918A (en) * 2020-10-24 2021-01-15 深圳市雅诺科技股份有限公司 Electronic middle presser foot mechanism of sewing machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4915044A (en) * 1988-06-07 1990-04-10 Ssmc Inc. Cloth presser mechanism with rack and pinion needle rod-drive
CN102182017A (en) * 2011-05-04 2011-09-14 张章生 Middle presser foot mechanism of sewing machine
CN103757826A (en) * 2013-12-30 2014-04-30 张章生 Sewing machine and flexible medium presser foot driving mechanism
CN205242030U (en) * 2015-12-24 2016-05-18 拓卡奔马机电科技有限公司 Presser foot device and sewing machine in modularization
CN205874676U (en) * 2016-08-12 2017-01-11 浙江青本缝纫机有限公司 Presser foot's drive structure
CN106637701A (en) * 2017-03-06 2017-05-10 苏州沃瑞豪兹自动化设备有限公司 Industrial sewing machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4915044A (en) * 1988-06-07 1990-04-10 Ssmc Inc. Cloth presser mechanism with rack and pinion needle rod-drive
CN102182017A (en) * 2011-05-04 2011-09-14 张章生 Middle presser foot mechanism of sewing machine
CN103757826A (en) * 2013-12-30 2014-04-30 张章生 Sewing machine and flexible medium presser foot driving mechanism
CN205242030U (en) * 2015-12-24 2016-05-18 拓卡奔马机电科技有限公司 Presser foot device and sewing machine in modularization
CN205874676U (en) * 2016-08-12 2017-01-11 浙江青本缝纫机有限公司 Presser foot's drive structure
CN106637701A (en) * 2017-03-06 2017-05-10 苏州沃瑞豪兹自动化设备有限公司 Industrial sewing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112226918A (en) * 2020-10-24 2021-01-15 深圳市雅诺科技股份有限公司 Electronic middle presser foot mechanism of sewing machine

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Application publication date: 20170915