CN206843733U - The automatic needle-foot-lifting of sewing machine and automatically adjust foot pressure device - Google Patents

The automatic needle-foot-lifting of sewing machine and automatically adjust foot pressure device Download PDF

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Publication number
CN206843733U
CN206843733U CN201720427532.2U CN201720427532U CN206843733U CN 206843733 U CN206843733 U CN 206843733U CN 201720427532 U CN201720427532 U CN 201720427532U CN 206843733 U CN206843733 U CN 206843733U
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China
Prior art keywords
motor
presser feet
presser
crank
driven gear
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Active
Application number
CN201720427532.2U
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Chinese (zh)
Inventor
王汝仁
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Meiji Technology Group Co.,Ltd.
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Zhejiang Maqi Sewing Machine Co Ltd
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Priority to CN201720427532.2U priority Critical patent/CN206843733U/en
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Abstract

The utility model discloses a kind of automatic needle-foot-lifting of sewing machine and foot pressure device is automatically adjusted, including motor, motor realize driving by pedal or controller;The output shaft of motor is fixedly connected with driven gear;Driven gear is fixedly connected with sliding block by one end of pin cylinder lever connecting rod, the fixing end of the other end connection set square of pull bar, the swinging end of set square by screw pin;Sliding block is movably set in the slide block slot of crank;Crank is fixedly connected with presser feet set, is equipped with presser bar in presser feet set, spring is arranged with presser bar;Presser bar connects presser feet set by spring;The bottom of presser bar is fixedly connected with presser feet;The side of presser feet is provided with displacement sensor, and displacement sensor is fixedly installed on sewing machine case;Displacement sensor connects the controller of motor by wired or wireless way.The utility model can adjust foot pressure automatically according to the thickness of sewing, can reduce the requirement to operative skill, improve operating efficiency.

Description

The automatic needle-foot-lifting of sewing machine and automatically adjust foot pressure device
Technical field
It the utility model is related to a kind of annex of sewing machine, and in particular to a kind of automatic needle-foot-lifting of sewing machine and automatic tune Save foot pressure device.
Background technology
The presser feet of existing sewing machine lifts and put down mechanism using artificial, electromagnet or cylinder driving, and shortcoming is that work is strong Degree is big, and noise is big, and stroke can not control.
In addition, this presser feet is lifted and put down in mechanism, the pressure of presser feet is typically adjusted manually by nut, can not be automatic Regulation.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of automatic needle-foot-lifting of sewing machine and automatically adjusts pressure Foot press power apparatus, it can realize the automatic needle-foot-lifting function of sewing machine, and can automatically adjust presser feet according to the thickness of sewing Pressure.
In order to solve the above technical problems, the automatic needle-foot-lifting of the utility model sewing machine and automatically adjusting foot pressure device Technical solution be:
Including motor 1, motor 1 realizes driving by pedal or controller;The output shaft of motor 1 is fixedly connected with driven gear 5;Driven gear 5 passes through one end of the cylinder lever connecting rod 7 of pin 6, the fixing end of the other end connection set square 8 of pull bar 7, set square 8 Swinging end sliding block 11 is fixedly connected with by screw pin 10;Sliding block 11 is movably set in the slide block slot 12-1 of crank 12;Crank 12 are fixedly connected with presser feet set 14, are equipped with presser bar 16 in presser feet set 14, spring 15 is arranged with presser bar 16;Presser bar 16 is logical Cross spring 15 and connect presser feet set 14;The bottom of presser bar 16 is fixedly connected with presser feet 17;The side of presser feet 17 is provided with displacement sensing Device 18, displacement sensor 18 are fixedly installed on sewing machine case 20;Displacement sensor 18 connects electricity by wired or wireless way The controller of machine 1.
By motor 1 described in pedal-driven, the rotation of motor 1 drives driven gear 5 to rotate;The rotating band of driven gear 5 Dynamic pull bar 7 moves, so that set square 8 is swung;Set square 8 is in swing process with slide block slot of the movable slider 11 along crank 12 12-1 transverse shiftings, while drive crank 12 to move upwards;The motion of crank 12 drives presser bar 16 to move upwards, so as to realize The lift action of presser feet 17.
When the presser feet 17 encounters thicker sewing in sewing process, sewing makes presser feet 17 and presser bar 16 overcome spring 15 Elastic force move up;After displacement sensor 18 senses the change in location of presser feet 17, signal is sent to the controller of motor 1; The controller of motor 1 sends to motor 1 according to the position variation signal of presser feet 17 and instructed, and rotates motor 1;The rotation of motor 1 Driven gear 5 is driven to rotate;The rotation of driven gear 5 drives pull bar 7 to move, so that set square 8 is swung;Set square 8 exists Swing process drives crank 12 to move downward with slide block slot 12-1 transverse shiftings of the movable slider 11 along crank 12;Crank 12 Motion drive presser bar 16 move downward so that presser feet 17 moves down, so as to increase pressure of the presser feet 17 to sewing;
When the presser feet 17 encounters relatively thin sewing in sewing process, presser feet 17 and presser bar 16 are in the presence of spring 15 Move down;After displacement sensor 18 senses the change in location of presser feet 17, signal is sent to the controller of motor 1;Motor 1 Controller sends to motor 1 according to the position variation signal of presser feet 17 and instructed, and rotates motor 1;The rotation of motor 1 drives driven Gear 5 rotates;The rotation of driven gear 5 drives pull bar 7 to move, so that set square 8 is swung;Set square 8 is in swing process Slide block slot 12-1 transverse shiftings with movable slider 11 along crank 12, while drive crank 12 to move upwards;The motion band of crank 12 Dynamic pressure foot lever 16 moves upwards so that presser feet 17 moves up, so as to reduce pressure of the presser feet 17 to sewing.
The output shaft of the motor 1 connects driven gear 5 by driving gear 4;Driving gear 4 is nibbled with the phase of driven gear 5 Close.
The motor 1 is stepper motor or servomotor.
The motor 1 is fixedly connected with sewing machine case 20 by motor mounting plate 3.
What the utility model can reach has the technical effect that:
The utility model can adjust foot pressure automatically according to the thickness of sewing, can reduce and operative skill is wanted Ask, improve operating efficiency.
The height that the utility model can be lifted by motor control presser feet, therefore the height that presser feet lifts can be according to need Arbitrarily to set.
The utility model can mitigate the labor intensity of operating personnel.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description:
Fig. 1 is the automatic needle-foot-lifting of the utility model sewing machine and automatically adjusts the decomposing schematic representation of foot pressure device;
Fig. 2 is the outline drawing using sewing machine of the present utility model;
Fig. 3 is the schematic diagram of crank of the present utility model.
Description of reference numerals in figure:
1 is motor, and 2 be screw,
3 be motor mounting plate, and 4 be driving gear,
5 be driven gear, and 6 be pin,
7 be pull bar, and 8 be set square,
9 be screw, and 10 be screw pin,
11 be sliding block, and 12 be crank,
12-1 is slide block slot,
13 be fixing nut, and 14 be presser feet set,
15 be spring, and 16 be presser bar,
17 be presser feet, and 18 be displacement sensor,
19 be inductor mounting seat, and 20 be sewing machine case.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer The accompanying drawing of type embodiment, the technical scheme of the utility model embodiment is clearly and completely described.Obviously, it is described Embodiment is part of the embodiment of the present utility model, rather than whole embodiments.Based on described of the present utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained on the premise of without creative work, all belongs to In the scope of the utility model protection.Unless otherwise defined, technical term or scientific terminology used herein should be this reality With the ordinary meaning that there is the personage of general technical ability to be understood in new art." comprising " used herein etc. is similar The element that word means to occur before the word either cover the element for appearing in the word presented hereinafter or object and its wait by object Together, other elements or object are not excluded for." connection " either the similar word such as " connected " be not limited to physics or The connection of machinery, but electrical connection can be included, it is either directly or indirect." on ", " under " etc. is only used for table Show relative position relation, after the absolute position for being described object changes, then the relative position relation may also correspondingly change.
As shown in Figure 1 and Figure 2, the automatic needle-foot-lifting of the utility model sewing machine and foot pressure device is automatically adjusted, including Motor 1, motor 1 are fixedly connected with motor mounting plate 3 by multiple screws 2, and motor mounting plate 3 is fixedly connected with sewing machine case 20; Motor 1 realizes driving by pedal or controller;
The output shaft of motor 1 is fixedly connected with driving gear 4, and driving gear 4 is meshed with driven gear 5;
Driven gear 5 passes through screw 9 and connects set square 8 by one end of the cylinder lever connecting rod 7 of pin 6, the other end of pull bar 7 Fixing end, the swinging end of set square 8 are fixedly connected with sliding block 11 by screw pin 10;
Sliding block 11 is movably set in the slide block slot 12-1 of crank 12, as shown in Figure 3;
Crank 12 is fixedly connected with presser feet set 14 by fixing nut 13, and presser bar 16, presser bar are equipped with presser feet set 14 Spring 15 is arranged with 16;Presser bar 16 connects presser feet set 14 by spring 15;
The bottom of presser bar 16 is fixedly connected with presser feet 17;
The side of presser feet 17 is provided with displacement sensor 18, and displacement sensor 18 is fixedly connected by inductor mounting seat 19 Sewing machine case 20;Displacement sensor 18 connects the controller of motor 1 by wired or wireless way;
Motor 1 can be stepper motor or servomotor.
The operation principle of the utility model presser foot lifter is as follows:
By pedal-driven motor 1, the rotation of motor 1 drives driving gear 4 and driven gear 5 to rotate;Driven gear 5 Rotation drives pull bar 7 to move, so that set square 8 is swung;
Set square 8, with slide block slot 12-1 transverse shifting of the movable slider 11 along crank 12, while drives crank in swing process 12 motions upwards;
The motion of crank 12 drives presser bar 16 to move upwards, so that presser feet 17 lifts;
Sewing is put into below presser feet 17;Inverted by pedal-driven motor 1, put down presser feet 17 and push down sewing.
The operation principle of the utility model regulation foot pressure is as follows:
If presser feet 17 encounters thicker sewing in sewing process, sewing makes presser feet 17 and presser bar 16 overcome spring 15 Elastic force moves up;After displacement sensor 18 senses the change in location of presser feet 17, signal is sent to the controller of motor 1;Electricity The controller of machine 1 sends to motor 1 according to the position variation signal of presser feet 17 and instructed, and rotates forward motor 1;The rotation of motor 1 Turn to drive driving gear 4 and driven gear 5 to rotate;The rotation of driven gear 5 drives pull bar 7 to move, so that set square 8 is put It is dynamic;Set square 8, with slide block slot 12-1 transverse shifting of the movable slider 11 along crank 12, while drives crank 12 downward in swing process Motion;The motion of crank 12 drives presser bar 16 to move downward so that presser feet 17 moves down, so as to increase presser feet 17 to sewing Pressure.
If presser feet 17 encounters relatively thin sewing in sewing process, presser feet 17 and presser bar 16 in the presence of spring 15 to Lower movement;After displacement sensor 18 senses the change in location of presser feet 17, signal is sent to the controller of motor 1;The control of motor 1 Device processed sends to motor 1 according to the position variation signal of presser feet 17 and instructed, and rotates backward motor 1;The rotation of motor 1 drives master Moving gear 4 and driven gear 5 rotate;The rotation of driven gear 5 drives pull bar 7 to move, so that the backswing of set square 8; Set square 8 moves backward in swing process with slide block slot 12-1 of the movable slider 11 along crank 12, while drives crank 12 to transport upwards It is dynamic;The motion of crank 12 drives presser bar 16 to move upwards so that presser feet 17 moves up, so as to reduce presser feet 17 to sewing Pressure.
Preferably, the output shaft of motor 1 is directly connected to driven gear 5.
Although embodiment of the present utility model is hereinbefore described in detail, come for those skilled in the art Say it is readily apparent that various modifications and variations can be carried out to these embodiments.However, it is understood that this modification and change Change is belonged within the scope of the utility model and spirit described in claims.Moreover, described herein practicality is new Type can have other embodiments, and can be practiced or carried out in several ways.

Claims (6)

1. a kind of automatic needle-foot-lifting of sewing machine and automatically adjust foot pressure device, it is characterised in that:Including motor(1), electricity Machine(1)Driving is realized by pedal or controller;
Motor(1)Output shaft be fixedly connected with driven gear(5);Driven gear(5)Pass through pin(6)Cylinder lever connecting rod(7)One End, pull bar(7)The other end connection set square(8)Fixing end, set square(8)Swinging end pass through screw pin(10)It is fixed to connect Connect sliding block(11);Sliding block(11)It is movably set in crank(12)Slide block slot(12-1)It is interior;
Crank(12)It is fixedly connected with presser feet set(14), presser feet set(14)Inside it is equipped with presser bar(16), presser bar(16)On be arranged There is spring(15);Presser bar(16)Pass through spring(15)Connect presser feet set(14);The bottom of presser bar 16 is fixedly connected with presser feet (17);
Presser feet(17)Side be provided with displacement sensor(18), displacement sensor(18)It is fixedly installed on sewing machine case (20);Displacement sensor(18)Motor is connected by wired or wireless way(1)Controller.
2. the automatic needle-foot-lifting of sewing machine according to claim 1 and automatically adjust foot pressure device, it is characterised in that: Pass through motor described in pedal-driven(1), motor(1)Rotation drive driven gear(5)Rotation;Driven gear(5)Rotating band Dynamic pull bar(7)It is mobile, so that set square(8)Swing;
Set square(8)In swing process band movable slider(11)Along crank(12)Slide block slot(12-1)Transverse shifting, drive simultaneously Crank(12)Motion upwards;
Crank(12)Motion drive presser bar(16)Motion upwards, so as to realize presser feet(17)Lift action.
3. the automatic needle-foot-lifting of sewing machine according to claim 1 and automatically adjust foot pressure device, it is characterised in that: When the presser feet(17)Thick sewing is encountered in sewing process, sewing makes presser feet(17)And presser bar(16)Overcome spring(15)'s Elastic force moves up;Displacement sensor(18)Sense presser feet(17)Change in location after, to motor(1)Controller send letter Number;Motor(1)Controller according to presser feet(17)Position variation signal to motor(1)Instruction is sent, makes motor(1)Rotate; Motor(1)Rotation drive driven gear(5)Rotation;Driven gear(5)Rotation drive pull bar(7)It is mobile, so that three Gusset(8)Swing;Set square(8)In swing process band movable slider(11)Along crank(12)Slide block slot(12-1)Transverse shifting, Drive crank simultaneously(12)Move downward;Crank(12)Motion drive presser bar(16)Move downward so that presser feet(17)To Lower movement, so as to increase presser feet(17)To the pressure of sewing;
When the presser feet(17)Thin sewing, presser feet are encountered in sewing process(17)And presser bar(16)In spring(15)Effect Under move down;Displacement sensor(18)Sense presser feet(17)Change in location after, to motor(1)Controller send letter Number;Motor(1)Controller according to presser feet(17)Position variation signal to motor(1)Instruction is sent, makes motor(1)Rotate; Motor(1)Rotation drive driven gear(5)Rotation;Driven gear(5)Rotation drive pull bar(7)It is mobile, so that three Gusset(8)Swing;Set square(8)In swing process band movable slider(11)Along crank(12)Slide block slot(12-1)Transverse shifting, Drive crank simultaneously(12)Motion upwards;Crank(12)Motion drive presser bar(16)Motion upwards so that presser feet(17)To Upper movement, so as to reduce presser feet(17)To the pressure of sewing.
4. the automatic needle-foot-lifting of sewing machine according to claim 1 and automatically adjust foot pressure device, it is characterised in that: The motor(1)Output shaft pass through driving gear(4)Connect driven gear(5);Driving gear(4)With driven gear(5)Phase Engagement.
5. the automatic needle-foot-lifting of sewing machine according to claim 1 and automatically adjust foot pressure device, it is characterised in that: The motor(1)For stepper motor or servomotor.
6. the automatic needle-foot-lifting of sewing machine according to claim 1 and automatically adjust foot pressure device, it is characterised in that: The motor(1)Pass through motor mounting plate(3)It is fixedly connected with sewing machine case(20).
CN201720427532.2U 2017-04-22 2017-04-22 The automatic needle-foot-lifting of sewing machine and automatically adjust foot pressure device Active CN206843733U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720427532.2U CN206843733U (en) 2017-04-22 2017-04-22 The automatic needle-foot-lifting of sewing machine and automatically adjust foot pressure device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720427532.2U CN206843733U (en) 2017-04-22 2017-04-22 The automatic needle-foot-lifting of sewing machine and automatically adjust foot pressure device

Publications (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106978674A (en) * 2017-04-22 2017-07-25 浙江美机缝纫机有限公司 The automatic needle-foot-lifting of sewing machine and automatically adjust foot pressure device
CN111379085A (en) * 2019-12-02 2020-07-07 浙江广和缝纫机有限公司 Pressure adjusting device for presser foot of sewing machine
US11001951B2 (en) 2018-04-09 2021-05-11 Sigma Mattress Machinery (Zhejiang) Co., Ltd. Pressure adjustment mechanism of sewing machine presser foot

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106978674A (en) * 2017-04-22 2017-07-25 浙江美机缝纫机有限公司 The automatic needle-foot-lifting of sewing machine and automatically adjust foot pressure device
US11001951B2 (en) 2018-04-09 2021-05-11 Sigma Mattress Machinery (Zhejiang) Co., Ltd. Pressure adjustment mechanism of sewing machine presser foot
CN111379085A (en) * 2019-12-02 2020-07-07 浙江广和缝纫机有限公司 Pressure adjusting device for presser foot of sewing machine

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GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 317502 Zhongxiang Industrial Zone, Xinhe Town, Wenling City, Taizhou City, Zhejiang Province

Patentee after: Meiji Technology Group Co.,Ltd.

Address before: 317502 Zhongxiang Industrial Zone, Xinhe Town, Wenling City, Taizhou City, Zhejiang Province

Patentee before: ZHEJIANG MAQI SEWING MACHINE Co.,Ltd.

CP01 Change in the name or title of a patent holder