CN207919106U - A kind of route-variable sewing machine rocker structure - Google Patents

A kind of route-variable sewing machine rocker structure Download PDF

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Publication number
CN207919106U
CN207919106U CN201820035137.4U CN201820035137U CN207919106U CN 207919106 U CN207919106 U CN 207919106U CN 201820035137 U CN201820035137 U CN 201820035137U CN 207919106 U CN207919106 U CN 207919106U
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CN
China
Prior art keywords
connecting shaft
coil
crank
sewing machine
frame
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.)
Expired - Fee Related
Application number
CN201820035137.4U
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Chinese (zh)
Inventor
沈丰
沈建华
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 I Moriai Home Textile Co Ltd
Original Assignee
Zhejiang I Moriai Home Textile 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 I Moriai Home Textile Co Ltd filed Critical Zhejiang I Moriai Home Textile Co Ltd
Priority to CN201820035137.4U priority Critical patent/CN207919106U/en
Application granted granted Critical
Publication of CN207919106U publication Critical patent/CN207919106U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of route-variable sewing machine rocker structures,Belong to sewing machine field,Solve the problems, such as that caused needle platform stroke variation complicated for operation is inconvenient,Its key points of the technical solution are that including frame,It is rotationally connected with the upper axis of frame,And it is arranged in the needle platform of frame vertically,The needle platform coordinates with frame in sliding,Needle platform upper end is hinged with connecting rod,The small end is placed in connecting shaft and the two is in rotation connection,The connecting shaft is slidably connected on crank,The connecting shaft is equipped with permanent magnet,The magnetic pole of the permanent magnet is located at the both sides of connecting shaft glide direction,Straight line where the glide direction of the connecting shaft passes through the center line of upper axis,The crank is equipped with the coil for being drivingly connected axis sliding,The coil is electrically connected with controller,The coil is electrically connected with power supply with controller,The utility model is reasonable for structure,Achieve the purpose that transformation stroke can be reached by not having to dismounting,It is easy to operate and easy to use.

Description

A kind of route-variable sewing machine rocker structure
Technical field
The utility model is related to a kind of sewing machines, more specifically, it relates to a kind of route-variable sewing machine rocker structure.
Background technology
Sewing machine is formed one or more stitchings on sewing, is made one or more layers seam with one or more sewing thread The machine that material interweaves or unites by a seam.It is producing and a kind of mechanical equipment common in life.Sewing such as leather equal thickness is thicker The stroke of thick object sewing machine machine syringe needle of sewing piece used compared to the thin object of the sewing pieces such as cloth of sewing thinner thickness The stroke of syringe needle in sewing machine machine is longer.Moreover, the shift motion that line jumps device can be set as benchmark.Also thick object is used The length that the toggle-action lever and line of sewing machine jump device is longer compared with thin object sewing machine, and it is that will reach the standard grade to lead to before penetrating needle that line, which jumps device, The ring crossed has the function of adjusting the pulling force of line, but the driving principle of Liang Zhong mechanisms is identical with running not to have difference, so two Kind machine can be combined into a sewing machine, be allowed to that the thicker sewing piece of thickness can be sewed or sew thinner thickness seam It threads object.
Currently, to disclose a kind of sewing machine machine changeable and turn for the Chinese invention patent of Publication No. CN106471172A Changing device, it includes the toggle-action lever on the upper axis of sewing machine by replacement, the replacement for making the lifting track of needle platform change Toggle-action lever;The replacement line for the travel path that can be changed with the interaction of lifting track and generation for substituting toggle-action lever jumps device, to pass through tune Markingoff pin platform lifts track and line jumps the motion track of device stroke, can be changed or convert the machine of sewing machine.
But above-mentioned technical proposal needs, by after disassembling shell, original toggle-action lever and line to be jumped device dismounting, will be substituted later bent Shank and replacement line jump device and are installed on sewing machine, put in back shell, complete the variation of sewing machine machine, reach its needle platform stroke Change.Such operation needs artificial dismounting, complicated for operation, and the variation of needle platform stroke is inconvenient.
Utility model content
In view of the deficienciess of the prior art, the utility model lies in that provide a kind of route-variable sewing machine rocker structure, Achieve the purpose that transformation stroke can be reached by not having to dismounting, it is easy to operate and easy to use.
To achieve the above object, the utility model provides following technical solution:A kind of route-variable sewing machine rocking arm knot Structure, including frame, be rotationally connected with frame upper axis and the vertical needle platform for being arranged in frame, the needle platform and frame are in sliding Cooperation is moved, crank is fixedly connected on the upper axis, the crank is equipped with connecting shaft, when the upper axis driving crank rotation Line revolves round the sun centered on the above axis of connecting shaft, and needle platform upper end is hinged with connecting rod, and the small end is placed on company In spindle and the two is in rotation connection, and the connecting shaft is slidably connected on crank, and the connecting shaft is equipped with permanent magnet, institute The magnetic pole for stating permanent magnet is located at the both sides of connecting shaft glide direction, and the straight line where the glide direction of the connecting shaft passes through upper axis Center line, the crank is equipped with the coil for being drivingly connected axis sliding, and the coil is electrically connected with controller, the coil with Controller is electrically connected with power supply.
By using above-mentioned technical proposal, when connecting shaft slides into close to one end of upper axis, the radius of connecting shaft revolution Reduce, reduces from the stroke for causing connecting rod to push the reciprocating motion of needle platform;When connecting shaft slides into one end far from upper axis, even The radius of spindle revolution increases, and increases from the stroke for causing connecting rod to push the reciprocating motion of needle platform, and sewing is adjusted to reach The purpose of machine stroke;When needing to adjust stroke, sense of current in coil is generated to which control coil is powered using controller The direction in magnetic field can reach transformation stroke, operation to control the position of connecting shaft to have achieved the purpose that not having to dismounting It is simple easy to use.
The utility model is further arranged to:The sliding groove of swallow-tail form is offered on the crank, the connecting shaft is close One end of crank is equipped with the sliding shoe being adapted to sliding groove, and the permanent magnet is embedded in sliding shoe.
When sewing machine rocker structure works, connecting shaft periodically applies pressure and pulling force to connecting rod, to make connection The shearing force for the vertical direction that axis is subject to makes the connection structure of connecting shaft more stablize, makes company by using above-mentioned technical proposal Connection structure between spindle and crank is more stablized.
The utility model is further arranged to:The frame is equipped with fixed seat, and the upper axis is arranged in fixed seat simultaneously And the two is in rotation connection, on the upper axis coaxial arrangement there are two the conductive sheet of annular, the conductive sheet respectively with coil Both ends are electrically connected, and the fixed seat is equipped with two brushes being electrically connected to a power source, and the brush contacts at conductive sheet.
By using above-mentioned technical proposal, conductive sheet rotates under the drive of main shaft, and brush is slided in conductive sheet, makes coil Always it is powered, and so that coil is powered by brush, keep coil and power supply powered good, increase coil and be electrically connected to a power source The stability of structure.
The utility model is further arranged to:Groove there are two being opened up on inner wall, the electricity are offered in the fixed seat Brush is slidably connected in groove, and spring is equipped in the groove.
Because brush is easy to wear, shortening for its can be made in long-term use, to contact on conductive sheet and cause Coil can not be powered, and brush is still contacted at conduction using spring after brush is ground short by using above-mentioned technical proposal On piece makes coil be powered, and increases service life.
The utility model is further arranged to:The spring is copper spring, and the spring one end is electrically connected with brush, described The spring other end is electrically connected with coil.
By using above-mentioned technical proposal, so that brush is connected to always with coil using spring, extraneous factor is avoided to influence two Electrical connection between person makes coil more stablize with brush electric connection structure.
The utility model is further arranged to:Jumper wire device is hinged on the frame, the jumper wire device other end extends to Outside frame, wire jumper bar is hinged in the middle part of the jumper wire device, the wire jumper bar is hinged with connecting rod.
By using above-mentioned technical proposal, when connecting rod pumps under the drive of connecting shaft, wire jumper bar is driven It reciprocatingly slides in the vertical direction, makes wire jumper bar that jumper wire device be driven up and down reciprocatingly to swing and have the function that bracing wire;Connecting rod is needle platform Different trips are provided and provide different amplitudes of fluctuation simultaneously for jumper wire device, to provide the line of different length.
The utility model is further arranged to:Soft magnet core, the coil winding and soft magnet are equipped in the coil On core.
By using above-mentioned technical proposal, the magnetic field intensity generated after coil is powered is enhanced using soft magnet core, makes line The magnetic force for applying bigger to connecting shaft is enclosed, the position of connecting shaft is made more to stablize.
The utility model is further arranged to:The one end of the crank far from sliding groove offers mounting groove, the soft magnetism Iron core and coil are placed in mounting groove, and the end cap of closing mounting groove is fixedly connected on the crank.
By using above-mentioned technical proposal, crank is balanced as mass using soft magnet core and coil, is made in crank The heart is located on the straight line where upper axis, generates vibration when preventing crank from rotating because of off-centring.
In conclusion the utility model has the advantages that:Become the stroke of needle exchange platform, operation using Electromagnetic Control Simple easy to use, connection structure is stablized, with small vibration, the stability of electric connection structure, and service life is long.
Description of the drawings
Fig. 1 is the stereogram of the present embodiment;
Fig. 2 is the structural schematic diagram that the present embodiment is used to show brace and connecting rod framework;
Fig. 3 is the sectional view that the present embodiment is used to show brace and connecting rod framework.
Reference numeral:1, frame;11, wire jumper slot;2, brace and connecting rod framework;21, crank;211, connecting shaft;212, it slides Block;213, sliding groove;214, permanent magnet;215, soft magnet core;216, coil;217, wire winding;218, mounting groove;219, it holds Lid;22, connecting rod;23, needle platform;3, jumper wire construction;31, wire jumper bar;32, supporting rod;33, jumper wire device;4, upper axis;41, fixed seat; 411, groove;412, brush;413, spring;42, conductive sheet.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
The same or similar label correspond to the same or similar components in the attached drawing of the utility model embodiment;In this practicality In novel description, it is to be understood that if there is the orientation or positional relationship of the instructions such as term "upper", "lower", "left", "right" to be It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate Or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore retouched in attached drawing The term for stating position relationship only for illustration, should not be understood as the limitation to this patent, for the common skill of this field For art personnel, the concrete meaning of above-mentioned term can be understood as the case may be.
A kind of route-variable sewing machine rocker structure, as shown in Figure 1, including upper axis 4, brace and connecting rod framework 2,1 and of frame Jumper wire construction 3, wherein upper axis 4 is rotationally connected on frame 1 provides power for rocker structure, brace and connecting rod framework 2 is sewing needle Offer moves up and down stroke, and jumper wire construction 3 provides sewing thread for sewing needle.
As shown in Fig. 2, brace and connecting rod framework 2 includes crank 21, connecting rod 22 and needle platform 23, wherein crank 21 is fixedly connected on On upper axis 4.
As shown in figure 3,21 one end of crank offers the sliding groove 213 of swallow-tail form, the straight line where sliding groove 213 is by upper The center line of axis 4, sliding groove 213 slidably connect the sliding shoe 212 being adapted to sliding groove 213, are fixedly connected on sliding shoe 212 There is connecting shaft 211, connecting shaft 211 is parallel with upper axis 4, and one end of connecting rod 22 is placed in connecting shaft 211 and the two rotation connects It connects, the other end of connecting rod 22 is hinged with the upper end of needle platform 23, and needle platform 23 is presented lower sliding with frame 1 and coordinated.When upper axis 4 is with song Line revolves round the sun centered on 211 or more axis 4 of connecting shaft when handle 21 rotates, and connecting shaft 211 applies needle platform 23 by connecting rod 22 past The power moved again makes needle platform 23 ceaselessly move up and down.
As shown in figure 3, being inlaid with permanent magnet 214 in sliding shoe 212, the magnetic pole of permanent magnet 214 is located at the sliding of connecting shaft 211 The both sides in direction, the one end of crank 21 far from sliding groove 213 offer mounting groove 218, wire winding are equipped in mounting groove 218 217, the end cap 219 of closing mounting groove 218 is bolted to connection on crank 21;Wire winding 217 includes 216 He of coil Soft magnet core 215, coil 216 are wound on soft magnet core 215, and coil 216 is electrically connected to a power source, and coil 216 generates after being powered Magnetic field, when the magnetic direction that coil 216 generates is identical as the magnetic direction of permanent magnet 214, wire winding 217 is to sliding shoe 212 apply suction, and sliding shoe 212 is made to drive 211 upward axis 4 of connecting shaft close, and the radius that connecting shaft 211 revolves round the sun reduces, from leading The stroke that connecting rod 22 pushes the reciprocating motion of needle platform 23 is caused to reduce;When the magnetic for the magnetic direction and permanent magnet 214 that coil 216 generates When field direction is opposite, wire winding 217 applies repulsion to sliding shoe 212, and sliding shoe 212 is made to drive connecting shaft 211 along separate Upper axis 4 slides, and the radius that connecting shaft 211 revolves round the sun increases, and increases from the stroke for causing connecting rod 22 to push the reciprocating motion of needle platform 23, When needing to adjust stroke, sense of current generates the direction in magnetic field to which control coil 216 is powered in control coil 216, to The position for controlling connecting shaft 211 can reach transformation stroke, user easy to operate to have achieved the purpose that not having to dismounting Just.
As shown in figure 3, frame 1 is equipped with fixed seat 41, upper axis 4 is placed through in fixed seat 41 and the two connects in rotation It connecing, there are two the conductive sheets 42 of annular, two conductive sheets 42 to be electrically connected respectively with the both ends of coil 216 for coaxial arrangement on upper axis 4, It is set in fixed seat 41 there are two brush 412, two brushes 412 are contacted at respectively on two conductive sheets 42, and brush 412 is electrically connected with Controller, controller are electrically connected with power supply, utilize sense of current in controller control coil 216.In order to enhance the binding that is electrically connected The stability of structure is opened up on 41 inner wall of fixed seat there are two groove 411, and two brushes 412 are slidably connected to groove 411 respectively It is interior, it is equipped with spring 413 in two grooves 411, spring 413 is copper spring, and 413 one end of spring contacts on brush 412 and two Person is electrically connected, and 413 other end of spring is electrically connected with coil 216, and after brush 412 is ground short, still will using spring 413 Brush 412 is contacted at respectively on conductive sheet 42, so that coil 216 is powered, is increased service life.
As shown in Fig. 2, jumper wire construction 3 includes jumper wire device 33, wire jumper bar 31 and supporting rod 32, wherein 32 one end of supporting rod is solid Surely it is connected to frame 1(Referring to Fig. 1), jumper wire device 33 is sheathed on the one end of supporting rod 32 far from frame 1 and the two is rotatablely connected, The one end of jumper wire device 33 far from supporting rod 32 extends to outside frame 1, and frame 1 opens up the wire jumper slot 11 passed through for jumper wire device 33, jumps Wire casing 11 is in the strip being vertically arranged, and the space for determining rotation is provided for jumper wire device 33;31 upper end of wire jumper bar and jumper wire device 33 Middle part it is hinged, the lower end of wire jumper bar 31 is placed in connecting shaft 211.It is back and forth transported when connecting rod 22 is vertical under the action of crank 21 When dynamic, 33 reciprocally swinging of jumper wire device is driven by wire jumper bar 31, and amplitude of fluctuation changes with the sliding of connecting shaft 211, Keep the stroke of wire jumper connecting rod 22 also larger, the amplitude of fluctuation of jumper wire device 33 is also larger, and the sewing thread added is provided for sewing needle;When When 23 stroke of needle platform is smaller, keep the stroke of wire jumper connecting rod 22 also smaller, the amplitude of fluctuation of jumper wire device 33 is also smaller, is carried for sewing needle For adding few sewing thread, the sewing thread of appropriate amount is provided for sewing needle.
Specific working mode:When needing to reduce the stroke of needle platform 23, using controller make the magnetic field of wire winding 217 with forever The magnetic direction of magnet 214 is identical, drives 211 upward axis 4 of connecting shaft close sliding shoe 212, the radius that connecting shaft 211 revolves round the sun Reduce, reduces from the stroke for causing connecting rod 22 to push the reciprocating motion of needle platform 23, and the amplitude of fluctuation of jumper wire device 33 is made also to subtract It is small;When needing to increase the stroke of needle platform 23, the magnetic direction in the magnetic field and permanent magnet 214 of wire winding 217 is made using controller On the contrary, driving connecting shaft 211 far from upper axis 4 sliding shoe 212, the radius that connecting shaft 211 revolves round the sun increases, is pushed away from connecting rod 22 is caused The stroke of the reciprocating motion of dynamic needle platform 23 increases, and the amplitude of fluctuation of jumper wire device 33 is made also to increase.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but As long as all being protected by Patent Law in the right of the utility model.

Claims (8)

1. a kind of route-variable sewing machine rocker structure, including frame(1), be rotationally connected with frame(1)Upper axis(4)And It is arranged in frame vertically(1)Needle platform(23), the needle platform(23)With frame(1)Coordinate in sliding, the upper axis(4)Upper fixation It is connected with crank(21), the crank(21)It is equipped with connecting shaft(211), when the upper axis(4)Drive crank(21)When rotation The connecting shaft(211)The above axis(4)Centered on line revolve round the sun, the needle platform(23)Upper end is hinged with connecting rod(22), described Connecting rod(22)Upper end is placed on connecting shaft(211)Upper and the two is in rotation connection, it is characterized in that:The connecting shaft(211)It is sliding It is dynamic to be connected to crank(21)On, the connecting shaft(211)It is equipped with permanent magnet(214), the permanent magnet(214)Magnetic pole be located at Connecting shaft(211)The both sides of glide direction, the connecting shaft(211)Glide direction where straight line pass through upper axis(4)In Heart line, the crank(21)It is equipped with and is drivingly connected axis(211)The coil of sliding(216), the coil(216)It is electrically connected with control Device processed, the coil(216)It is electrically connected with power supply with controller.
2. a kind of route-variable sewing machine rocker structure according to claim 1, it is characterized in that:The crank(21)On open Sliding groove equipped with swallow-tail form(213), the connecting shaft(211)Close to crank(21)One end be equipped with and sliding groove(213)It is suitable The sliding shoe matched(212), the permanent magnet(214)It is embedded in sliding shoe(212)In.
3. a kind of route-variable sewing machine rocker structure according to claim 2, it is characterized in that:The frame(1)On set There is fixed seat(41), the upper axis(4)It is arranged in fixed seat(41)Upper and the two is in rotation connection, the upper axis(4)It is upper same There are two the conductive sheets of annular for axis setting(42), the conductive sheet(42)Respectively with coil(216)Both ends electrical connection, it is described solid Reservation(41)It is equipped with two brushes being electrically connected to a power source(412), the brush(412)Contact at conductive sheet(42).
4. a kind of route-variable sewing machine rocker structure according to claim 3, it is characterized in that:The fixed seat(41)On Offer groove there are two being opened up on inner wall(411), the brush(412)It is slidably connected to groove(411)It is interior, the groove (411)It is interior to be equipped with spring(413).
5. a kind of route-variable sewing machine rocker structure according to claim 4, it is characterized in that:The spring(413)For Copper spring, the spring(413)One end and brush(412)Electrical connection, the spring(413)The other end and coil(216)It is electrically connected It connects.
6. a kind of route-variable sewing machine rocker structure according to claim 1, it is characterized in that:The frame(1)Upper hinge It is connected to jumper wire device(33), the jumper wire device(33)The other end extends to frame(1)Outside, the jumper wire device(33)Middle part is hinged with jump Line bar(31), the wire jumper bar(31)With connecting rod(22)It is hinged.
7. a kind of route-variable sewing machine rocker structure according to claim 6, it is characterized in that:The coil(216)It is interior It is equipped with soft magnet core(215), the coil(216)Winding and soft magnet core(215)On.
8. a kind of route-variable sewing machine rocker structure according to claim 7, it is characterized in that:The crank(21)Far From sliding groove(213)One end offer mounting groove(218), the soft magnet core(215)And coil(216)It is placed in mounting groove (218)It is interior, the crank(21)On be fixedly connected with closing mounting groove(218)End cap(219).
CN201820035137.4U 2018-01-09 2018-01-09 A kind of route-variable sewing machine rocker structure Expired - Fee Related CN207919106U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820035137.4U CN207919106U (en) 2018-01-09 2018-01-09 A kind of route-variable sewing machine rocker structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820035137.4U CN207919106U (en) 2018-01-09 2018-01-09 A kind of route-variable sewing machine rocker structure

Publications (1)

Publication Number Publication Date
CN207919106U true CN207919106U (en) 2018-09-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820035137.4U Expired - Fee Related CN207919106U (en) 2018-01-09 2018-01-09 A kind of route-variable sewing machine rocker structure

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113186670A (en) * 2021-03-23 2021-07-30 绍兴市晶远花型设计有限公司 Embroidery machine driver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113186670A (en) * 2021-03-23 2021-07-30 绍兴市晶远花型设计有限公司 Embroidery machine driver

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GR01 Patent grant
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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180928

Termination date: 20190109

CF01 Termination of patent right due to non-payment of annual fee