CN205636083U - Needle bar driving mechanism - Google Patents
Needle bar driving mechanism Download PDFInfo
- Publication number
- CN205636083U CN205636083U CN201620283360.1U CN201620283360U CN205636083U CN 205636083 U CN205636083 U CN 205636083U CN 201620283360 U CN201620283360 U CN 201620283360U CN 205636083 U CN205636083 U CN 205636083U
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- China
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- needle bar
- shank
- crank
- connecting rod
- drive device
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Abstract
The utility model provides a needle bar driving mechanism belongs to mechanical technical field. It has solved the current inconvenient scheduling problem of needle bar driving mechanism dismouting debugging. A needle bar driving mechanism, includes the needle bar frame, wear to establish needle bar on the needle bar frame, drive needle bar gliding slip actuating mechanism and drive needle bar frame wobbling swing actuating mechanism about in the needle bar frame, slip actuating mechanism including fix on the needle bar frame have the spout the deflector and in the spout gliding slider from top to bottom, the slider is connected with the needle bar. This needle bar driving mechanism has that dismouting debugging is convenient, the noise is little and wearing and tearing advantage such as few.
Description
Technical field
This utility model belongs to field of mechanical technique, relates to a kind of sewing machine, particularly relates to
A kind of needle bar drive device.
Background technology
Sewing machine is the machine sewed up by sewing by suture, including needle bar mechanism, take-up
Mechanism, feed mechanism, string-hooking mechanism, hold-down mechanism, Winder and lubricating arrangement etc..
Sewing machine according to frame mode or sewing technology mode can be divided into flat seam machine, chain seam machine,
Overedger, lockstitch button holder and closer etc..During sewing, particularly lockstitch button holder exists
During work, eedle is needed to meet keyhole stitch seam by swing.So shank is not
Only want to pump, also want to realize reciprocally swinging.
The open shank proposing a kind of sewing machine of Chinese patent literature data swings transmission knot
Structure [application number: 201120359984.4；Authorization Notice No.: CN202247298U], including
The needle bar frame being arranged in casing, the shank being slidably arranged on needle bar frame, needle bar frame upper end
Being rotationally connected with casing, the lower end of needle bar frame is fixedly installed for driving needle bar frame to swing
Needle bar frame slide block；Needle bar frame slide block connects has pendulum shaft component, pendulum shaft component to include driving balance staff,
Being arranged on the balance staff crank driving balance staff end, the end of balance staff crank connects wobble drive
Axle, wobble drive axle is connected with needle bar frame slide block.
Meanwhile, this patent documentation also disclosed the pin coordinated with above-mentioned shank swing gearing structure
Bar pumps mechanism, is included in the shank adapter sleeve being fixedly installed on shank, and pin
The needle bar drive device that bar adapter sleeve is connected.Needle bar drive device includes and actuating unit phase
The needle bar crank that is connected with spindle nose of main shaft connected and the end phase of needle bar crank
The driving crank connected, the connecting rod crank being connected with the end of driving crank, bent with connecting rod
The shank connecting rod crank that the end of handle is connected, the end of shank connecting rod crank is connected with shank
The protruding shaft of set is connected；The end of connecting rod crank is joined with the longitudinal slide being fixedly installed
Close.Being fixedly installed the first guide plate and the second guide plate in head, longitudinal chute sets respectively
It is placed on the first guide plate and the second guide plate, slides in longitudinal chute of the first guide plate
Being provided with the first guide runner, the interior slip of longitudinal chute of the second guide plate is provided with second and leads
To slide block；The end of connecting rod crank is arranged on the first guide runner and second by slide block axle and leads
Between slide block.
Although above-mentioned shank swing gearing structure achieve make shank in certain interval around
Needle bar frame connecting shaft swings, and when shank is positioned at diverse location, needle bar drive device can
Drive shank to move up and down to sew.But needle bar drive device uses double chute
Slide block structure, the first guide plate and the second guide plate are integrally fixed in casing, need narrow
Fixed guide plate is installed in little head shell, and needs debugging guide plate to make slide block in chute
Smooth and easy slip, this structure has the highest requirement, installation and debugging inconvenient maintenance to installation and debugging.
And chute slide block structure can produce sliding friction, during high-speed sewing, multiple cunnings
Wearing and tearing and noise with the use of increasing of dynamic assembly.
Summary of the invention
The purpose of this utility model is the problems referred to above existed for prior art, it is proposed that
A kind of needle bar drive device, solves the technical problem that it is how to make needle bar drive device dismount
Debugging is convenient.
The purpose of this utility model can be realized by following technical proposal:
A kind of needle bar drive device, the shank including needle bar frame, being located on needle bar frame,
Sliding drive mechanism and driving needle bar frame that driving shank slides up and down in needle bar frame are put
Dynamic swing driving mechanism, it is characterised in that described sliding drive mechanism includes being fixed on
The guide plate with chute on needle bar frame and the slide block slided up and down in chute, institute
State slide block to be connected with shank.
The driving force of sliding drive mechanism is except in addition to the driving component in shank direction, often
Also having the component in other directions, these component can make between shank with needle bar frame in relative fortune
Produce bigger friction time dynamic, affect the use of shank.After slider guide plate is set, drive
In power, the component in other directions can be partially offset, beneficially the up and down motion of shank.
So for the component eliminating other directions in driving force, it is necessary to installing when
Adjust the position of guide plate, make slide block and the shank smooth and easy slip of energy.During work, slide
The driving force of drive mechanism makes slide block slide up and down in chute, and slide block connects shank
And shank is located on needle bar frame, driving force makes shank slide up and down in needle bar frame simultaneously；
Swing driving mechanism makes shank swing by driving needle bar frame.
When assembling needle bar drive device, can first shank be arranged on needle bar frame, then
It is directed to plate be contained in advance on needle bar frame by securing member, then slide block is connected with shank
After slide block loaded in the chute of guide plate, then the position adjusting guide plate makes slide block slide
In groove and shank smooth and easy slip in needle bar frame, then it is directed to plate and fixes on needle bar frame,
The needle bar frame that finally will be equipped with shank, guide plate and slide block is installed to specify position, and
Make needle bar frame be connected with swing driving mechanism and shank is connected with sliding drive mechanism.Cause
For the installation and debugging of slider guide plate not in casing, motion space is unrestricted, installs
The process of debugging is convenient and swift.When needing repairing or safeguard guide plate slide block, Ke Yixian
Whole the pulling down of needle bar frame that will be equipped with shank, guide plate and slide block carries out individual part again
Dismounting maintenance or safeguard, maintenance adjust after again by whole for needle bar frame be installed to specify
Position.The dismounting debugging process of needle bar drive device is convenient and swift.
And, during high-speed sewing, this only one group of slider guide board component
Needle bar drive device more can efficiently reduce noise and mill than many groups slider guide board component
Damage.Because only that when the rigging error minimum of slide block and guide plate, slide block is in chute
Slide the noise and abrasion minimum produced.But tend not to disappear during practical set
Except this rigging error, and when the group number of slider guide board component is multiple, rigging error
It is the superposition often organizing slider guide board component rigging error, thus organizes slider guide plate group more
The noise of the needle bar drive device of part and abrasion are bigger.And one group of slider guide board component can
To efficiently reduce noise and abrasion.
In needle bar drive device, described sliding drive mechanism also includes needle rod holder, shank
Connecting rod, needle bar crank and main shaft, described main shaft is fixing with needle bar crank to be connected and can carry
Dynamic needle bar crank rotates；Described needle rod holder is fixedly connected on shank, on described needle rod holder
Having rotating shaft, the end of described rotating shaft is connected through the lower end of shank connecting rod with slide block；Institute
The end of the upper end and needle bar crank of stating shank connecting rod forms releasable connection.
During work, main axis drives needle bar crank to rotate, and needle bar crank rotates and drives pin
Bar link motion, shank link motion band movable slider and shank slide up and down.This structure
Effectively rotational motion mode is converted to up and down motion mode.Machine is driven at assembling shank
During structure, can first needle bar crank be fixedly connected on main shaft；Then shank is installed to
On needle bar frame, and structure according to needle rod holder is special during shank wears needle bar frame
Needle rod holder is fixed on shank by point, then makes the end of the rotating shaft on needle rod holder pass shank
The lower end of connecting rod is connected with slide block, then is put in the chute of guide plate by slide block, then adjusts
The position of whole guide plate makes slide block in chute and shank smooth and easy slip in needle bar frame；Gu
It is installed to needle bar frame after reserving guide plate specify position, makes upper end and the pin of shank connecting rod
The end of pole crank forms releasable connection, and makes needle bar frame be connected with swing driving mechanism.
When needing detachable maintaining, only need to be formed in shank small end and needle bar crank end can
Tear connection, and the releasing that needle bar frame is connected with swing driving mechanism open, after taking off needle bar frame
It is replaced safeguarding to parts again.The dismounting debugging process side of needle bar drive device
The most quick.
In needle bar drive device, it is connected between described shank connecting rod and needle bar crank and has biography
Dynamic crankshaft, the right-hand member of described driving crank is formed hinged through the end of needle bar crank, institute
State the left end of driving crank and formed hinged through the upper end of shank connecting rod；Described driving crank
Left end and the upper end of shank connecting rod between be provided with screw, it is bent that described screw inserts transmission
The left end of axle is also formed threaded, and make described shank connecting rod at the axis of driving crank
Fix on direction.
During installation, tighten screw and make shank connecting rod solid on the axis direction of driving crank
Fixed；During dismounting, shank connecting rod just can be taken off from driving crank by removable screw.Logical
Cross screw and driving crank make shank connecting rod form releasable connection with the end of needle bar crank,
The dismounting debugging process making needle bar drive device is convenient and swift.
In needle bar drive device, described needle bar frame has two installations being coaxially set
Hole, described shank is through installing hole and makes the axis of shank and the axis collinear of installing hole,
The axis of described chute is parallel with the axis of installing hole.
The axis of installing hole and the axis collinear of shank, the axis of chute and the axle of installing hole
Line is parallel, and the glide direction that can make slide block is consistent with the glide direction of shank, makes slide block
Effect with shank can reach smooth and easy slip when debugging, makes installation and debugging process convenient fast
Prompt.
In above-mentioned needle bar drive device, between described shank and needle bar frame, shank is set
Set, described shank set is fixedly mounted in installing hole.
Shank set makes will not directly contact between shank with needle bar frame, decreases shank and pin
The abrasion of bridge and the noise of generation.
In needle bar drive device, described needle bar drive device is arranged in casing, described
Swing driving mechanism includes motor, wobble crank, swing connecting bar, connecting rod and swinging axle,
Described motor is fixedly connected in casing, and described wobble crank is fixedly connected on the electricity of motor
On arbor, one end of described swing connecting bar is hinged with the end of wobble crank, described swing
The other end of connecting rod is hinged in connecting rod, and described connecting rod is formed with the right-hand member of swinging axle
Removable fixing connection, the left end of described swinging axle is fixedly connected on needle bar frame.
It is to turn before and after swinging axle by swing driving mechanism by the convert rotational motion of motor
Dynamic, it is achieved that to swing before and after needle bar frame and shank.During installation, first by motor, swing
Crank, swing connecting bar and connecting rod install, then the left end of swinging axle is solid with needle bar frame
Fixed connect, then in needle bar frame is installed to casing and make the right-hand member of swinging axle and be connected rod
Become removable fixing connection；During dismounting, first release the right-hand member of swinging axle and the company of connecting rod
Connect, then needle bar frame is extracted together with swinging axle, the dismounting of needle bar drive device
Debugging process is convenient and swift.
In needle bar drive device, the right-hand member of described needle bar frame arranges the connecting portion of protrusion,
The left end of described swinging axle is inserted in connecting portion, and described connecting portion is provided with steady pin,
Described steady pin is through connecting portion and is inserted in swinging axle；It is provided with in described connecting rod
Yoke configurations, the right-hand member of described swinging axle is fixedly connected with the connecting rod by yoke configurations.
Needle bar frame and swinging axle utilize steady pin to form a fixed connection, and are possible to prevent swinging axle
Coming off from needle bar frame when inserting connecting rod or extracting connecting rod, beneficially shank drives
The carrying out of motivation structure dismounting, makes needle bar drive device dismounting debugging process convenient and swift.Logical
Cross yoke configurations to fix or to dismantle swinging axle convenient and swift.
In needle bar drive device, the right-hand member of described driving crank is also associated with thread take-up crank,
Rotate in described casing and be provided with line-choosing connecting rod, the movable end of described line-choosing connecting rod and take-up
The end of crank is hinged, and the end of described thread take-up crank is fixedly installed thread take-up tension lever.
Thread take-up tension lever, thread take-up crank and line-choosing connecting rod and driving crank constitute Yarn taking-up mechanism.
Along with the motion of main shaft, the setting of thread take-up tension lever, thread take-up crank and line-choosing connecting rod achieves seam
Thread machine take-up motion.The setting of these parts simultaneously can't affect the peace of needle bar frame
Dress and the debugging efforts of slide block chute.Only need to first install take-up before needle bar frame is installed
Mechanism, then needle bar frame is installed.
In needle bar drive device, described swinging axle being set with axle sleeve, described axle sleeve is joined
Dress is on the housing.
Axle sleeve is set and can reduce rocking of swinging axle, increase the accuracy that shank swings,
Decrease simultaneously and rock brought noise.
In needle bar drive device, described swinging axle being set with back-up ring, described back-up ring is solid
Surely being connected on swinging axle, described back-up ring is resisted against on the axle sleeve of swinging axle left end.
Axle sleeve is typically fixedly mounted in casing, and back-up ring is possible to prevent swinging axle in the axial direction
Movement, improve needle bar drive device work stability.
Compared with prior art, this needle bar drive device has the advantage that
Be directed to plate be fixedly mounted on needle bar frame, and in the chute of guide plate arrange with
The slide block that shank connects, the mounting or dismounting debugging process making needle bar drive device is convenient and swift, and
Decrease shank and drive noise and the abrasion of structure.Shape between shank connecting rod and needle bar crank
The releasable connection become, forms the removable fixing structure such as be connected between connecting rod with swinging axle
The mounting or dismounting debugging process making needle bar drive device further is convenient and swift.Setting of Yarn taking-up mechanism
Putting the take-up motion achieving sewing machine, the setting of axle sleeve decreases rocking of swinging axle,
Be conducive to the operation of sewing machine.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of needle bar drive device；
Fig. 2 is the exploded view of needle bar drive device；
Fig. 3 is the partial sectional view of needle bar drive device；
Fig. 4 is needle bar drive device installation site schematic diagram.
In figure, 1, casing；2, needle bar frame；2a, installing hole；2b, connecting portion；3、
Shank；3a, shank set；4, sliding drive mechanism；4a, guide plate；4a1, chute；
4b, slide block；4c, needle rod holder；4c1, rotating shaft；4d, shank connecting rod；4e, screw；
4f, driving crank；4g, needle bar crank；4h, main shaft；5, swing driving mechanism；5a、
Motor；5b, wobble crank；5c, swing connecting bar；5d, connecting rod；5d1, clip are tied
Structure；5e, swinging axle；5f, steady pin；5g, axle sleeve；5h, back-up ring；6, take-up is bent
Handle；7, line-choosing connecting rod；8, thread take-up tension lever.
Detailed description of the invention
The following is specific embodiment of the utility model and combine accompanying drawing, to this utility model
Technical scheme be further described, but this utility model is not limited to these embodiments.
Embodiment one
As shown in Figure 1, Figure 2 and Figure 3, a kind of needle bar drive device, including needle bar frame 2,
The shank 3, the driving shank 3 that are arranged on needle bar frame 2 slide up and down in needle bar frame 2
Sliding drive mechanism 4 and drive needle bar frame 2 swing swing driving mechanism 5.Pin
The left end of bridge 2 has about two the installing hole 2a being coaxially set, and shank 3 passes
The axis collinear of installing hole 2a and its axis and installing hole 2a, shank 3 can installed
Slide up and down in the 2a of hole；Shank set 3a can also be set between shank 3 and needle bar frame 2,
Shank overlaps in 3a is arranged on installing hole 2a and is fixed on needle bar frame 2, and shank 3 is at pin
Slide up and down in bar set 3a.The right-hand member of needle bar frame 2 is provided with the connecting portion 2b of protrusion.
Sliding drive mechanism 4 includes guide plate 4a, slide block 4b, needle rod holder 4c, shank
Connecting rod 4d, screw 4e, driving crank 4f, needle bar crank 4g and main shaft 4h.Guide
Plate 4a is fixed on needle bar frame 2 and has chute 4a1, the axis of chute 4a1 and installation
The axis of hole 2a is parallel, and slide block 4b is equipped with chute 4a1 and slide block 4b can slided
Slide up and down in groove 4a1.Main shaft 4h and needle bar crank 4g is fixing to be connected, and main shaft
4h can drive needle bar crank 4g to rotate；Needle rod holder 4c is fixedly connected on shank 3, pin
Having rotating shaft 4c1 on bar cramp 4c, the end of rotating shaft 4c1 passes under shank connecting rod 4d
End is connected with slide block 4b, between upper end and the end of needle bar crank 4g of shank connecting rod 4d
Connect and have driving crank 4f.The right-hand member of driving crank 4f is through the end of needle bar crank 4g
Being formed hinged, the left end of driving crank 4f is formed hinged through the upper end of shank connecting rod 4d；
It is provided with screw 4e, spiral shell between left end and the upper end of shank connecting rod 4d of driving crank 4f
Nail 4e inserts the left end of driving crank 4f and is formed threaded, and makes shank connecting rod 4d
The axis direction of driving crank 4f is fixed.During work, main shaft 4h rotates and drives pin
Pole crank 4g rotates, and needle bar crank 4g rotates and drives shank connecting rod 4d motion, and shank is even
Bar 4d motion band movable slider 4b and shank 3 slide up and down.
Shown in as shown in Figure 1, Figure 3 and Figure 4, needle bar drive device is arranged in casing 1,
Swing driving mechanism 5 includes motor 5a, wobble crank 5b, swing connecting bar 5c, connection
Bar 5d and swinging axle 5e.Motor 5a is fixedly connected on casing 1, and wobble crank 5b is connected
On the motor shaft of motor 5a, one end of swing connecting bar 5c is hinged with wobble crank 5b,
The other end of swing connecting bar 5c is hinged in connecting rod 5d, and connecting rod 5d is fixedly connected on
The right-hand member of swinging axle 5e.Yoke configurations 5d1, swinging axle 5e it is provided with in connecting rod 5d
Right-hand member utilize that yoke configurations 5d1 and connecting rod 5d are fixing to be connected.The right side of swinging axle 5e
End is inserted in the endoporus of yoke configurations 5d1, then by locking member by yoke configurations 5d1 card
Swinging axle 5e is tightly made to be fixedly attached in connecting rod 5d.The left end of swinging axle 5e is inserted into
In the connecting portion 2b of needle bar frame 2, two steady pin 5f through connecting portion 2b and are inserted into
In swinging axle 5e, swinging axle 5e is made to form a fixed connection with needle bar frame 2.Can also be by
Wobble crank 5b is replaced by eccentric, eccentric be connected on the motor shaft of motor 5a and
Eccentric and the motor shaft eccentric setting of motor 5a, one end of swing connecting bar 5c has set
Hole and trepanning are placed on eccentric.For the ease of installing, by main shaft 4h and swinging axle 5e
And driving crank 4f is arranged in parallel.By swing driving mechanism 5 by motor 5a
Convert rotational motion be to rotate before and after swinging axle 5e, it is achieved that needle bar frame 2 and shank
Swing before and after 3.Also it is set with axle sleeve 5g, axle sleeve 5g on swinging axle 5e and is arranged on machine
On shell 1.Arranging of axle sleeve 5g can reduce rocking of swinging axle 5e, thus increases pin
The accuracy that bar 3 swings, reduces swinging axle 5e and rocks brought noise.Axle sleeve 5g
There are two two ends, left and right being separately positioned on swinging axle 5e, swinging axle 5e is cased with back-up ring
5h, back-up ring 5h can be fixed on swinging axle 5e by trip bolt, and back-up ring 5h is two
Between individual axle sleeve 5g and be resisted against on the axle sleeve 5g of swinging axle 5e left end.
The right-hand member of driving crank 4f is also associated with thread take-up crank 6, casing 1 rotates and arranges
Line-choosing connecting rod 7, the movable end of line-choosing connecting rod 7 is had to rotate even with the end of thread take-up crank 6
Connecing, the end of thread take-up crank 6 is fixedly installed thread take-up tension lever 8.Thread take-up tension lever 8, thread take-up crank
6 and line-choosing connecting rod 7 and driving crank 4f constitute Yarn taking-up mechanism.Along with main shaft 4h
Rotation, the setting of Yarn taking-up mechanism achieve sewing machine take-up motion.
When assembling needle bar drive device, first motor 5a is fixedly installed in casing 1,
Wobble crank 5b, swing connecting bar 5c and connecting rod 5d it are sequentially connected with again.Then by pin
Pole crank 4g is fixedly connected on main shaft 4h, then connection has thread take-up crank 6 and take-up
The line-choosing connecting rod 7 of bar 8 is connected in casing 1, then is passed by the right-hand member of driving crank 4f
Thread take-up crank 6 is hinged with needle bar crank 4g.Then shank 3 is pacified by installing hole 2a
It is contained on needle bar frame 2, by needle rod holder while shank 3 is installed on needle bar frame 2
4c is fixed on shank 3；Again the end of rotating shaft 4c1 fixing on needle rod holder 4c is worn
The lower end crossing shank connecting rod 4d is connected with slide block 4b.Then plate 4a it is directed to by fastening
Part is contained on needle bar frame 2 in advance, then is loaded by slide block 4b in the chute 4a1 of guide plate 4a,
Adjusting the position of guide plate 4a again makes slide block 4b in chute 4a1 and shank 3 is at shank
Smooth and easy slip in frame 2, then be directed to plate 4a and fix on needle bar frame 2.Then will pendulum
The left end of moving axis 5e is inserted in the connecting portion 2b of needle bar frame 2, then by two steady pins
5f is through connecting portion 2b and is inserted in swinging axle 5e, makes swinging axle 5e and needle bar frame 2
Form a fixed connection.Then will be equipped with shank 3, guide plate 4a, slide block 4b, shank
The needle bar frame 2 of connecting rod 4d and swinging axle 5e is installed to Handpiece Location, and makes swinging axle 5e
In yoke configurations 5d1 on the axle sleeve 5g being passed through in casing 1 and connecting rod 5d
Endoporus, while swinging axle 5e is installed in axle sleeve 5g by fixing for back-up ring 5h even
It is connected on swinging axle 5e, and makes back-up ring 5h be resisted against the axle sleeve 5g of swinging axle 5e left end
On；Swinging axle 5e is made to be fixedly attached to even the clamping of yoke configurations 5d1 by locking member again
On extension bar 5d.Finally screw 4e is inserted the left end of driving crank 4f and forms screw thread even
Connect, and make shank connecting rod 4d fixing on the axis direction of driving crank 4f.Thus
Complete the installation of needle bar drive device.
Because the installation and debugging of slide block 4b guide plate 4a can not complete in casing 1,
Motion space during installation and debugging is unrestricted, and the process of installation and debugging is convenient and swift.Need
When keeping in repair or safeguard guide plate 4a slide block 4b, can first will be equipped with shank 3,
Guide plate 4a, slide block 4b, the needle bar frame 2 of shank connecting rod 4d and swinging axle 5e whole are torn open
Go out casing 1 carry out the dismounting maintenance of individual part again or safeguard, dismount maintenance process side
The most quick.
And, during high-speed sewing, this needle bar drive device more can subtract effectively
Few noise and abrasion.Because only that the rigging error at slide block 4b and guide plate 4a is minimum
Time, slide block 4b slide in chute 4a1 produce noise and abrasion minimum.But in reality
Tend not to eliminate this rigging error during the assembling of border, and slide block 4b guide plate 4a
The group number of assembly is the most, and rigging error is the most, and the noise of needle bar drive device and abrasion are also
The biggest.And this needle bar drive device is only with one group of slide block 4b and guide plate 4a, institute
So that noise and abrasion can be efficiently reduced.
Specific embodiment described herein is only for example to this utility model spirit
Explanation.This utility model person of ordinary skill in the field can be to described concrete
Embodiment is made various amendment or supplements or use similar mode to substitute, but not
Spirit of the present utility model can be deviateed or surmount model defined in appended claims
Enclose.
Claims (10)
1. a needle bar drive device, including needle bar frame (2), the shank (3) being located on needle bar frame (2), drive the sliding drive mechanism (4) that shank (3) slides up and down in needle bar frame (2) and the swing driving mechanism (5) driving needle bar frame (2) to swing, it is characterized in that, described sliding drive mechanism (4) includes the guide plate (4a) with chute (4a1) being fixed on needle bar frame (2) and the slide block (4b) slided up and down in chute (4a1), described slide block (4b) is connected with shank (3).
Needle bar drive device the most according to claim 1, it is characterized in that, described sliding drive mechanism (4) also includes needle rod holder (4c), shank connecting rod (4d), needle bar crank (4g) and main shaft (4h), and described main shaft (4h) is fixing with needle bar crank (4g) to be connected and needle bar crank (4g) can be driven to rotate；Described needle rod holder (4c) is fixedly connected on shank (3), having rotating shaft (4c1) on described needle rod holder (4c), the end of described rotating shaft (4c1) is connected through the lower end of shank connecting rod (4d) with slide block (4b)；The upper end of described shank connecting rod (4d) forms releasable connection with the end of needle bar crank (4g).
Needle bar drive device the most according to claim 2, it is characterized in that, it is connected between described shank connecting rod (4d) and needle bar crank (4g) and has driving crank (4f), the right-hand member of described driving crank (4f) is formed hinged through the end of needle bar crank (4g), and the left end of described driving crank (4f) is formed hinged through the upper end of shank connecting rod (4d)；It is provided with screw (4e) between left end and the upper end of shank connecting rod (4d) of described driving crank (4f), described screw (4e) inserts the left end of driving crank (4f) and is formed threaded, and makes described shank connecting rod (4d) fixing on the axis direction of driving crank (4f).
Needle bar drive device the most according to claim 1, it is characterized in that, described needle bar frame (2) has two installing holes being coaxially set (2a), described shank (3) is through installing hole (2a) and makes the axis of shank (3) and the axis collinear of installing hole (2a), and the axis of described chute (4a1) is parallel with the axis of installing hole (2a).
Needle bar drive device the most according to claim 4, it is characterized in that, arranging shank set (3a) between described shank (3) and needle bar frame (2), described shank set (3a) is fixedly mounted in installing hole (2a).
Needle bar drive device the most according to claim 3, it is characterized in that, described needle bar drive device is arranged in casing (1), described swing driving mechanism (5) includes motor (5a), wobble crank (5b), swing connecting bar (5c), connecting rod (5d) and swinging axle (5e), described motor (5a) is fixedly connected in casing (1), described wobble crank (5b) is fixedly connected on the motor shaft of motor (5a), one end of described swing connecting bar (5c) is hinged with the end of wobble crank (5b), the other end of described swing connecting bar (5c) is hinged in connecting rod (5d), described connecting rod (5d) forms removable fixing be connected with the right-hand member of swinging axle (5e), the left end of described swinging axle (5e) is fixedly connected on needle bar frame (2).
Needle bar drive device the most according to claim 6, it is characterized in that, the right-hand member of described needle bar frame (2) arranges the connecting portion (2b) of protrusion, the left end of described swinging axle (5e) is inserted in connecting portion (2b), steady pin (5f) it is provided with, in described steady pin (5f) passes connecting portion (2b) and is inserted into swinging axle (5e) on described connecting portion (2b)；Being provided with yoke configurations (5d1) in described connecting rod (5d), the right-hand member of described swinging axle (5e) is connected by yoke configurations (5d1) and connecting rod (5d) are fixing.
Needle bar drive device the most according to claim 6, it is characterized in that, the right-hand member of described driving crank (4f) is also associated with thread take-up crank (6), the upper rotation of described casing (1) is provided with line-choosing connecting rod (7), the movable end of described line-choosing connecting rod (7) is hinged with the end of thread take-up crank (6), and the end of described thread take-up crank (6) is fixedly installed thread take-up tension lever (8).
Needle bar drive device the most according to claim 6, it is characterised in that be set with axle sleeve (5g) on described swinging axle (5e), described axle sleeve (5g) is fitted in described casing (1).
Needle bar drive device the most according to claim 9, it is characterized in that, back-up ring (5h) it is set with on described swinging axle (5e), described back-up ring (5h) is fixedly connected on swinging axle (5e), and described back-up ring (5h) is resisted against on the axle sleeve (5g) of swinging axle (5e) left end.
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| CN201620283360.1U CN205636083U (en) | 2016-04-07 | 2016-04-07 | Needle bar driving mechanism |
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| CN201620283360.1U CN205636083U (en) | 2016-04-07 | 2016-04-07 | Needle bar driving mechanism |
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| CN205636083U true CN205636083U (en) | 2016-10-12 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108251986A (en) * | 2018-03-19 | 2018-07-06 | 苏州强逸机械有限公司 | A kind of needle pole crank |
| CN109706640A (en) * | 2019-01-04 | 2019-05-03 | 杰克缝纫机股份有限公司 | A kind of sewing machine and its Yarn taking-up mechanism |
| CN109881384A (en) * | 2019-03-14 | 2019-06-14 | 杰克缝纫机股份有限公司 | A kind of sewing machine manually adjusting thread take up lever stroke |
| CN110983659A (en) * | 2019-12-25 | 2020-04-10 | 拓卡奔马机电科技有限公司 | Sewing machine and take-up and cloth-needling mechanism thereof |
| CN111020902A (en) * | 2019-12-27 | 2020-04-17 | 拓卡奔马机电科技有限公司 | Needle bar rotating template machine |
| WO2022206004A1 (en) * | 2021-04-02 | 2022-10-06 | 杰克科技股份有限公司 | Cloth-puncturing take-up module for sewing machine |
-
2016
- 2016-04-07 CN CN201620283360.1U patent/CN205636083U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108251986A (en) * | 2018-03-19 | 2018-07-06 | 苏州强逸机械有限公司 | A kind of needle pole crank |
| CN109706640A (en) * | 2019-01-04 | 2019-05-03 | 杰克缝纫机股份有限公司 | A kind of sewing machine and its Yarn taking-up mechanism |
| CN109881384A (en) * | 2019-03-14 | 2019-06-14 | 杰克缝纫机股份有限公司 | A kind of sewing machine manually adjusting thread take up lever stroke |
| CN110983659A (en) * | 2019-12-25 | 2020-04-10 | 拓卡奔马机电科技有限公司 | Sewing machine and take-up and cloth-needling mechanism thereof |
| CN111020902A (en) * | 2019-12-27 | 2020-04-17 | 拓卡奔马机电科技有限公司 | Needle bar rotating template machine |
| WO2022206004A1 (en) * | 2021-04-02 | 2022-10-06 | 杰克科技股份有限公司 | Cloth-puncturing take-up module for sewing machine |
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Effective date of registration: 20200929 Address after: 198 Xinggang East Road, Damaiyu street, Yuhuan City, Taizhou City, Zhejiang Province Patentee after: ZHEJIANG ZOJE SEWING MACHINE Co.,Ltd. Address before: 317604, Taizhou, Zhejiang province Yuhuan County barley island Street Hing Tung Road, No. 198 Patentee before: ZHEJIANG ZOJE SEWING MACHINE Co.,Ltd. Patentee before: ZHEJIANG JOYEE SEWING MACHINE Co.,Ltd. Patentee before: ZHEJIANG BSM SEWING MACHINE Co.,Ltd. |