CN104652045A - Sewing machine - Google Patents

Sewing machine Download PDF

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Publication number
CN104652045A
CN104652045A CN201510065764.3A CN201510065764A CN104652045A CN 104652045 A CN104652045 A CN 104652045A CN 201510065764 A CN201510065764 A CN 201510065764A CN 104652045 A CN104652045 A CN 104652045A
Authority
CN
China
Prior art keywords
sewing machines
presser
presser foot
rod
feet
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
CN201510065764.3A
Other languages
Chinese (zh)
Inventor
梅迪
薛秀尧
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.)
Zhejiang Lejiang Machine Co Ltd
Original Assignee
Zhejiang Lejiang Machine 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 Zhejiang Lejiang Machine Co Ltd filed Critical Zhejiang Lejiang Machine Co Ltd
Priority to CN201510065764.3A priority Critical patent/CN104652045A/en
Publication of CN104652045A publication Critical patent/CN104652045A/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
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B29/00Pressers; Presser feet
    • D05B29/06Presser feet
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B69/00Driving-gear; Control devices
    • D05B69/02Mechanical drives

Abstract

The invention discloses a sewing machine, and aims to mainly solve the problems of complex structure, need of manually adjusting the sewing machine or amending a program of the sewing machine, time consuming and labor consuming of the conventional sewing machine of which a presser foot can be adjusted according to the thickness of a fabric. An elastic member is abutted against an auxiliary presser foot of the sewing machine; the auxiliary presser foot does not move at ordinary times during sewing; if the fabric which becomes thick abruptly comes across, the auxiliary presser foot overcomes the elasticity to adjust the height per se; the movement position of a middle presser foot is driven through a bracket and a rotary frame, so that the middle presser foot can also automatically adapt to the change of sewing thickness; the sewing machine has a simple mechanism, can automatically adapt to the change of the thickness of the fabric (for example down coats, cotton clothes and the like) and is stable in operation and has a good use effect.

Description

A kind of Sewing machines
Technical field
The present invention relates to a kind of Sewing machines.
Background technology
Sewing machines has the upper axle be supported in horn, be supported in lower drive shaft in support and rotary shuttle shaft.Upper axle rotates in horn, for driving eedle and thread take-up tension lever.Lower drive shaft and rotary shuttle shaft rotate in support.Lower drive shaft is for driving cloth conveying teeth, and rotary shuttle shaft is for driving rotating shuttle.Eedle keeps upper thread, and liter, decline on the leading section of horn.Thread take-up tension lever and eedle synchronously rise, decline.The upper thread that thread take-up tension lever makes eedle keep when declining relaxes, and when rising, this upper thread is tightened.Cloth conveying teeth comes and goes action along fore-and-aft direction, rearward carries the cloth on needle plate.Rotating shuttle collecting bottom line, rotates in the below of needle plate.When eedle declines, upper thread is at the below forming surface wire loop of needle plate.Rotating shuttle capture surface wire loop, makes upper thread ring and bottom line interlock.In Sewing machines, synchronously rotated by upper axle, lower drive shaft and rotary shuttle shaft, upper and lower power transmission shaft eedle, thread take-up tension lever, cloth conveying teeth and rotating shuttle co-operating, thus the cloth on needle plate to be made.
The Deutsche Bundespatent that the patent No. is " DE3043141A1 " discloses a kind of Sewing machines, its pressing plate (i.e. presser feet) can regulate according to the thickness of fabric, but this sewing machine structure is complicated, and need the program of manual adjustment Sewing machines or amendment Sewing machines, waste time and energy.
Summary of the invention
In order to overcome the deficiency of background technology, the invention provides a kind of Sewing machines, mainly solving traditional presser feet can carry out the Sewing machines that regulates, its complex structure according to the thickness of fabric, and need the program of manual adjustment Sewing machines or amendment Sewing machines, the problem wasted time and energy.
The technical solution adopted in the present invention is:
A kind of Sewing machines, comprise housing, main drive gear is provided with in described housing, transmission mechanism and head operating mechanism, described main transmission comprises motor, described motor-driven final drive shaft, described transmission mechanism comprises swing arm, described head operating mechanism comprises eedle, middle presser feet and auxiliary presser foot, described final drive shaft drives described eedle and middle presser feet to do upper and lower straight reciprocating motion by described swing arm, also comprise elastic component, the lifting bar driven by actuator, support, rotating turret, the first connecting rod be connected with described swing arm, the second connecting rod be connected with described auxiliary presser foot and the third connecting rod be connected with described middle presser feet,
Described elastic component to be located between described middle presser feet and inner walls and to be provided downward power to described middle presser feet;
Described lifting bar is used for presser feet in described in lifting;
Described support one end is hinged on described inner walls, and the other end is articulated with described rotating turret middle-end, the upper and lower two ends of described rotating turret respectively with described first connecting rod and second connecting rod hinged; On the hinged and same jointed shaft of described third connecting rod, described rotating turret and described support.
Described actuator is electromagnetic valve.
Described swing arm is provided with at least one adjustment hole, and described first connecting rod is connected with described adjustment hole by screw.
The adjustment hole center of circle described in each to be positioned on same line and coaxial with described swing arm.
Described elastic component is stage clip.
Described inner walls upper end is corresponding with described auxiliary presser foot is provided with presser feet guide rod, and described elastic component is sheathed on outside described presser feet guide rod and two ends compress with described presser feet guide rod and auxiliary presser foot respectively and coordinate up and down.
Also comprise the pressure regulating screw and look nut of working in coordination, described look nut is installed on described housing exterior walls, and described pressure regulating screw one end is connected with described presser feet guide rod, and the other end stretches out housing and communicates with the external world.
Described inner walls is provided with boss, and described auxiliary presser foot upper end is corresponding with described boss is provided with pressing plate, and described pressing plate is provided with adjustment screw, presses bottom described adjustment screw with described pressing plate top.
Described lifting bar is located at described pressing plate lower end and is compressed with described pressing plate and coordinates.
Described boss inwall is provided with gathering sill, correspondingly with described gathering sill on described auxiliary presser foot is provided with the guide pad be slidably matched.
The invention has the beneficial effects as follows: the invention provides a kind of Sewing machines, on its auxiliary presser foot, top is pressed with elastic component, when sewing, auxiliary presser foot does not move at ordinary times, if when running into fabric thickening suddenly, auxiliary presser foot can overcome elastic force adjustment oneself height, the movement position of presser feet in being driven by support and rotating turret, thus make middle presser feet also automatically can adapt to varied in thickness of sewing, this Sewing machines mechanism is simple, automatically caliper variation (as down jackets and cotton clothes etc.) can be adapted to, stable, result of use is good.
Accompanying drawing explanation
Fig. 1 is the perspective view of one embodiment of the invention.
Fig. 2 is Figure 1A place enlarged drawing.
Fig. 3 is the partial schematic diagram of one embodiment of the invention.
Fig. 4 is the partial schematic diagram of the housing of one embodiment of the invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described: as shown in the figure, a kind of Sewing machines, comprise housing, main drive gear is provided with in described housing, transmission mechanism and head operating mechanism, described main transmission comprises motor, described motor-driven final drive shaft 1, described transmission mechanism comprises swing arm 11, described head operating mechanism comprises eedle 12, middle presser feet 13 and auxiliary presser foot 14, described final drive shaft 1 drives described eedle 12 and middle presser feet 13 to do upper and lower straight reciprocating motion by described swing arm 11, also comprise elastic component 15, the lifting bar 16 driven by actuator, support 17, rotating turret 18, the first connecting rod 111 be connected with described swing arm 11, the second connecting rod 141 be connected with described auxiliary presser foot 14 and the third connecting rod 131 be connected with described middle presser feet 13, described elastic component 15 to be located between described middle presser feet 13 and inner walls and to be provided downward power to described middle presser feet 13, described lifting bar 16 is for presser feet 13 middle described in lifting, described support 17 one end is hinged on described inner walls, and the other end is articulated with described rotating turret 18 middle-end, described rotating turret about 18 two ends respectively with described first connecting rod 111 and second connecting rod 141 hinged, on the hinged and same jointed shaft of described third connecting rod 131, described rotating turret 18 and described support 17.When sewing, main shaft drives swing arm to swing, swing arm drives support by first connecting rod, during support drives, presser feet moves up and down, and simultaneously main shaft also drives eedle to move up and down and middle presser feet and eedle are synchronized with the movement, because elastic component is applied with downward power to auxiliary presser foot, so auxiliary presser foot does not move, but driving support lift by leg-of-mutton rotating turret, one end that rotating turret is connected with auxiliary presser foot is motionless, and the other end swings and takes up Central Asia pin; After sewing terminates, actuator drives lifting bar to be lifted by auxiliary presser foot, and now, support and Central Asia pin lift by auxiliary presser foot, and achieve synchronously lifting of auxiliary presser foot and middle presser feet, main shaft still can normally rotate; Under sewing state, if it is thickening suddenly to run into fabric, the elastic force that auxiliary presser foot can overcome elastic component rises, and drives phase place adjustment and then the limit of sports record position of presser feet in affecting of support and rotating turret, thus makes middle presser feet also automatically can adapt to the varied in thickness of fabric.Rotating turret is preferably right angled triangle, more stable.The invention provides a kind of Sewing machines, on its auxiliary presser foot, top is pressed with elastic component, when sewing, auxiliary presser foot does not move at ordinary times, if when running into fabric thickening suddenly, auxiliary presser foot can overcome elastic force adjustment oneself height, the movement position of presser feet in being driven by support and rotating turret, thus making middle presser feet also automatically can adapt to varied in thickness of sewing, this Sewing machines mechanism is simple, automatically can adapt to caliper variation (as down jackets and cotton clothes etc.), stable, result of use is good.When processing the fabric such as down jackets and cotton clothes, auxiliary presser foot is used for the band velvet fabric heaved to compress, and middle presser feet is used for when eedle puncture cloth, and middle presser feet and cloth compress, so that stitching is stable.
In the present invention, as shown in the figure, described actuator is electromagnetic valve 2.Adopt electromagnetic valve to drive lifting bar, when electromagnetic valve is connected, electromagnet action is backward drive auxiliary presser foot thus drive lifting bar rises, and also can adopt cylinder etc. here, electromagnetic valve is preferred version, and result of use is better.
In the present invention, as shown in the figure, described swing arm 11 is provided with at least one adjustment hole 112, and described first connecting rod 111 is connected with described adjustment hole 112 by screw.By be arranged on can regulate above different adjustment holes in the amplitude of fluctuation of presser feet, use convenient.
In the present invention, as shown in the figure, adjustment hole 112 center of circle described in each to be positioned on same line and coaxial with described swing arm 11.Be convenient to processing, and convenient when using.
In the present invention, as shown in the figure, described elastic component 15 is stage clip.Here also can adopt other elastic components, as extension spring, rubber ring etc., stage clip is preferred version, and cost is lower and result of use good.
In the present invention, as shown in the figure, described inner walls upper end is corresponding with described auxiliary presser foot 14 is provided with presser feet guide rod 31, and described elastic component 15 is sheathed on outside described presser feet guide rod 31 and two ends compress with described presser feet guide rod 31 and auxiliary presser foot 14 respectively and coordinate up and down.Fix stage clip by presser feet guide rod 31, working stability, can not deviate from, result of use is better.
In the present invention, as shown in the figure, also comprise the pressure regulating screw 42 and look nut 43 of working in coordination, described look nut 43 is installed on described housing exterior walls, and described pressure regulating screw 42 one end is connected with described presser feet guide rod 31, and the other end stretches out housing and communicates with the external world.Housing just can regulate presser feet guide rod length by pressure regulating screw need not be opened, and then the rate of tension of adjustment stage clip, easy to use.
In the present invention, as shown in the figure, described inner walls is provided with boss 41, and described auxiliary presser foot 14 upper end is corresponding with described boss 41 is provided with pressing plate 142, and described pressing plate 142 is provided with adjustment screw 143, pushes up press bottom described adjustment screw 143 with described pressing plate 142.Can adjust the height of auxiliary presser foot, structure is simple, and result of use is better.
In the present invention, as shown in the figure, described lifting bar 16 is located at described pressing plate 142 lower end and is compressed with described pressing plate 142 and coordinates.
In the present invention, as shown in the figure, described boss 41 inwall is provided with gathering sill 411, correspondingly with described gathering sill 411 on described auxiliary presser foot 14 is provided with the guide pad 144 be slidably matched.In auxiliary presser foot rising with when pressing down, can come spacing soon by the guiding of sliding in gathering sill, run more stable, result of use is good.
Embodiment should not be considered as limitation of the present invention, but any improvement done based on spirit of the present invention, all should within protection scope of the present invention.

Claims (10)

1. a Sewing machines, comprise housing, main drive gear is provided with in described housing, transmission mechanism and head operating mechanism, described main transmission comprises motor, described motor-driven final drive shaft (1), described transmission mechanism comprises swing arm (11), described head operating mechanism comprises eedle (12), middle presser feet (13) and auxiliary presser foot (14), described final drive shaft (1) drives described eedle (12) and middle presser feet (13) to do upper and lower straight reciprocating motion by described swing arm (11), it is characterized in that: also comprise elastic component (15), the lifting bar (16) driven by actuator, support (17), rotating turret (18), the first connecting rod (111) be connected with described swing arm (11), the second connecting rod (141) be connected with described auxiliary presser foot (14) and the third connecting rod (131) be connected with described middle presser feet (13),
Described elastic component (15) to be located between described middle presser feet (13) and inner walls and to be provided downward power to described middle presser feet (13);
Described lifting bar (16) is for presser feet (13) middle described in lifting;
Described support (17) one end is hinged on described inner walls, and the other end is articulated with described rotating turret (18) middle-end, described rotating turret (18) up and down two ends respectively with described first connecting rod (111) and second connecting rod (141) hinged; On described third connecting rod (131), described rotating turret (18) and the hinged and same jointed shaft of described support (17).
2. a kind of Sewing machines according to claim 1, is characterized in that: described actuator is electromagnetic valve (2).
3. a kind of Sewing machines according to claim 1, is characterized in that: described swing arm (11) is provided with at least one adjustment hole (112), and described first connecting rod (111) is connected with described adjustment hole (112) by screw.
4. a kind of Sewing machines according to claim 3, is characterized in that: adjustment hole described in each (112) center of circle to be positioned on same line and coaxial with described swing arm (11).
5. a kind of Sewing machines according to claim 1, is characterized in that: described elastic component (15) is stage clip.
6. a kind of Sewing machines according to claim 5, it is characterized in that: described inner walls upper end is corresponding with described auxiliary presser foot (14) is provided with presser feet guide rod (31), described elastic component (15) is sheathed on described presser feet guide rod (31) outside and up and down two ends compress with described presser feet guide rod (31) and auxiliary presser foot (14) respectively and coordinate.
7. a kind of Sewing machines according to claim 6, it is characterized in that: also comprise the pressure regulating screw (42) and look nut (43) of working in coordination, described look nut (43) is installed on described housing exterior walls, described pressure regulating screw (42) one end is connected with described presser feet guide rod (31), and the other end stretches out housing and communicates with the external world.
8. a kind of Sewing machines according to claim 1, it is characterized in that: described inner walls is provided with boss (41), described auxiliary presser foot (14) upper end is corresponding with described boss (41) is provided with pressing plate (142), described pressing plate (142) is provided with adjustment screw (143), and described adjustment screw (143) bottom is pushed up with described pressing plate (142) and pressed.
9. a kind of Sewing machines according to claim 8, is characterized in that: described lifting bar (16) is located at described pressing plate (142) lower end and is compressed with described pressing plate (142) and coordinates.
10. a kind of Sewing machines according to claim 8, is characterized in that: described boss (41) inwall is provided with gathering sill (411), and described auxiliary presser foot (14) is above corresponding with described gathering sill (411) is provided with the guide pad (144) be slidably matched.
CN201510065764.3A 2015-02-09 2015-02-09 Sewing machine Pending CN104652045A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510065764.3A CN104652045A (en) 2015-02-09 2015-02-09 Sewing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510065764.3A CN104652045A (en) 2015-02-09 2015-02-09 Sewing machine

Publications (1)

Publication Number Publication Date
CN104652045A true CN104652045A (en) 2015-05-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510065764.3A Pending CN104652045A (en) 2015-02-09 2015-02-09 Sewing machine

Country Status (1)

Country Link
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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0368869B1 (en) * 1987-07-27 1992-04-15 G.M. Pfaff Aktiengesellschaft Sewing machine with top transport device
JPH078655A (en) * 1990-06-29 1995-01-13 Gm Pfaff Ag Fabric holding-down apparatus for stitch forming machine
CN1891887A (en) * 2005-06-28 2007-01-10 杜尔克普-阿德勒股份公司 Sewing machine
CN102296430A (en) * 2010-06-28 2011-12-28 Juki株式会社 Loading and feeding mechanism for sewing machine
CN203113060U (en) * 2012-12-28 2013-08-07 中捷缝纫机股份有限公司 Middle presser foot driving device in sewing machine
CN203187943U (en) * 2013-02-04 2013-09-11 西安标准工业股份有限公司 Adjustable follow-up pressing foot
CN203513976U (en) * 2013-08-07 2014-04-02 台州斯诺克电子科技有限公司 Guide device for press pin in sewing machine
CN203700723U (en) * 2013-12-30 2014-07-09 张章生 Sewing machine and flexible middle presser foot driving mechanism thereof
CN204455512U (en) * 2015-02-09 2015-07-08 浙江乐江机械有限公司 A kind of Sewing machines

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0368869B1 (en) * 1987-07-27 1992-04-15 G.M. Pfaff Aktiengesellschaft Sewing machine with top transport device
JPH078655A (en) * 1990-06-29 1995-01-13 Gm Pfaff Ag Fabric holding-down apparatus for stitch forming machine
CN1891887A (en) * 2005-06-28 2007-01-10 杜尔克普-阿德勒股份公司 Sewing machine
CN102296430A (en) * 2010-06-28 2011-12-28 Juki株式会社 Loading and feeding mechanism for sewing machine
CN203113060U (en) * 2012-12-28 2013-08-07 中捷缝纫机股份有限公司 Middle presser foot driving device in sewing machine
CN203187943U (en) * 2013-02-04 2013-09-11 西安标准工业股份有限公司 Adjustable follow-up pressing foot
CN203513976U (en) * 2013-08-07 2014-04-02 台州斯诺克电子科技有限公司 Guide device for press pin in sewing machine
CN203700723U (en) * 2013-12-30 2014-07-09 张章生 Sewing machine and flexible middle presser foot driving mechanism thereof
CN204455512U (en) * 2015-02-09 2015-07-08 浙江乐江机械有限公司 A kind of Sewing machines

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王文博: "《服装机械设备使用维修手册》", 31 March 2010 *

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Application publication date: 20150527