CN109457401A - Sewing machine and its feeding adjusting device - Google Patents
Sewing machine and its feeding adjusting device Download PDFInfo
- Publication number
- CN109457401A CN109457401A CN201910037679.4A CN201910037679A CN109457401A CN 109457401 A CN109457401 A CN 109457401A CN 201910037679 A CN201910037679 A CN 201910037679A CN 109457401 A CN109457401 A CN 109457401A
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- China
- Prior art keywords
- feeding
- falling
- feed spool
- falling feeding
- eccentric wheel
- Prior art date
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Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/10—Work-feeding means with rotary circular feed members
- D05B27/18—Feed cups
Abstract
A kind of the invention discloses sewing machine and its feeding adjusting device, the regulating device include: transmission connection in the feed spool that falls for swinging long connecting rod, swing long connecting rod swing and are able to drive the rotation of falling feed spool；The eccentric wheel of falling feeding, it which is provided with limit hole, limit hole is placed in down feed spool, and limit hole is that can limit strip-shaped hole of the eccentric wheel of falling feeding relative to the axis linear motion of falling feeding, and the both ends of limit hole can be contacted respectively with feed spool by line or face contact limits；For making the crank of falling feed spool of the eccentric wheel of falling feeding Yu the synchronous rotation of falling feed spool；Actuator for driving the wobbler action of falling feeding, to change limit hole with the diametrically opposite position of feed spool, the wobbler action of falling feeding can drive feed spool rotation.Since in switching, the collision between limit hole and feed spool is that line contact or face contact, compared with the prior art in feed regulator and adjust the point contact collision of stud, the noise of generation and abrasion during backstitching can be reduced.
Description
Technical field
The present invention relates to technical field of sewing equipment, in particular to a kind of feeding adjusting device.In addition, the present invention also relates to
And a kind of sewing machine including above-mentioned feeding adjusting device.
Background technique
In used flat seam machine feed regulation, as shown in Figure 1 to Figure 3, rotated by upper axis 05 and feeding eccentric wheel 06
It drives feeding connecting rod 07 to swing, then by swing seat 04, swing long connecting rod 08 and the collective effect for swinging short connecting rod 09, makes to send
Expect that crank 010 and feed spool 011 are swung, to realize work feed effect.When needing the when of falling feeding, actuator pulls swing seat 04,
The phase for swinging long connecting rod 08 and swing short connecting rod 09 is set to change, to realize that feeding crank 010 and feed spool 011 are reversed
Movement, it is final to realize the effect of falling feeding.Meanwhile it will pull the company of backstitching when realizing that the during of falling feeding, swing seat 04 swing
Bar 03 moves, and so that feed regulator 01 and feeding is adjusted stud 02 and collides in B1 point, after the movement of falling feeding is completed, pendulum
Dynamic seat 04 resets, and so that feed regulator 01 and feeding adjusting stud 02 is collided in A1 point by backstitching connecting rod 03.
It is point contact that feed regulator 01 and feeding, which adjust stud 02, during realizing entire backstitch, as shown in figure 3,
Feed regulator 01 and feeding adjust stud 02 and generate noise very big twice after the collision of B1 and A1 point.Moreover, feeding is adjusted
Device 01 and feeding adjust stud 02 and are chronically at point contact state, will lead to feed regulator 01 and feeding adjusts stud 02 and wears
Seriously, it causes needle gage size abnormal, influences sewing efficiency.
Therefore, how the feeding adjusting device that noise is smaller, abrasion is less during a kind of backstitch is provided, is this field
The current technical issues that need to address of technical staff.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of feeding adjusting device, noise is smaller during backstitching, wears
It is less.It is a further object of the present invention to provide a kind of sewing machine including above-mentioned feeding adjusting device, noise during backstitching
It is smaller, abrasion it is less.
To achieve the above object, the invention provides the following technical scheme:
One kind feeding adjusting device, including swing long connecting rod and feed spool, comprising:
It is sequentially connected in the feed spool that falls for swinging long connecting rod, the swing long connecting rod swing is able to drive described send
Expect axis rotation；
The eccentric wheel of falling feeding, the eccentric wheel of falling feeding are equipped with limit hole, and the limit hole is placed in the feeding
On axis, the limit hole is that can limit the strip-shaped hole of the eccentric wheel of falling feeding relative to the axis linear motion of falling feeding,
And the both ends of the limit hole can be contacted respectively with the feed spool by line or face contact limits；
For making the crank of falling feed spool of the eccentric wheel of falling feeding and the synchronous rotation of falling feed spool, it is connected to described
Between the eccentric wheel of falling feeding and the feed spool；
For driving the wobbler action of falling feeding, to change the limit hole and the feed spool diametrically
The actuator of position, in the feed spool, the wobbler action of falling feeding being capable of band for the eccentric wheel of the falling feeding transmission connection
Move the feed spool rotation.
Preferably, further includes:
The connecting rod of falling feeding, one end of the connecting rod of falling feeding are rotationally sheathed on the eccentric wheel of falling feeding, it is described fall
Feeding connecting rod is swung with the eccentric rotary of the eccentric wheel of falling feeding；
The crank of falling feeding, one end of the crank of falling feeding is fixedly connected with feed spool and the other end is articulated with the feeding
Connecting rod, the crank of falling feeding are swung with the swing of the connecting rod of falling feeding, and then drive the feed spool rotation.
Preferably, the outer peripheral surface of the eccentric wheel of falling feeding includes cylindrical surface, and one end fixation of the connecting rod of falling feeding is set
There is connection ring, the connection ring is to be pivotably engages with the annulus being sheathed on the cylindrical surface.
Preferably, the eccentric wheel of falling feeding includes eccentric wheel ontology and the locating rod for being fixed on the eccentric wheel ontology,
The limit hole is set on the eccentric wheel ontology, and the connecting rod of falling feeding is sheathed on the eccentric wheel ontology, described to send
Material axis crank is fixed on the feed spool, and the straight in the locating rod and the crank of falling feed spool, which slides, to be connected
It connects, the extending direction of the straight is parallel to the extending direction of the limit hole, to limit described in the actuator driving
Glide direction of the eccentric wheel of falling feeding relative to feed spool.
Preferably, the actuator includes the company of the electromagnet of falling feeding and the output end for being connected to the electromagnet of falling feeding
Bar assembly, the link assembly are equipped with pin shaft, and the pin shaft is connected on the connecting rod of falling feeding.
Preferably, the actuator further includes the elastic component being connected in the locating rod；
When the electromagnet of falling feeding is powered, the link assembly drives the eccentric wheel of falling feeding to overcome the elastic component
Reset force movement, make one end of the limit hole with it is described feed spool contact；
When the electromagnet of falling feeding powers off, the reset force of the elastic component drives the wobbler action of falling feeding, makes
The other end of the limit hole is contacted with the feed spool.
Preferably, the connecting hole on the connecting rod of falling feeding is placed on the pin shaft.
Preferably, the link assembly includes the electromagnet of falling feeding connecting rod, the electromagnet of falling feeding crank and the electromagnetism of falling feeding
Iron pull rod, the electromagnet of the falling feeding connecting rod are fixedly connected on the output end of the electromagnet of falling feeding, the electromagnetism of falling feeding
One end of iron crank is articulated with the electromagnet of the falling feeding connecting rod and the other end is articulated with the electromagnet of the falling feeding pull rod, described
It is rotationally connected on limited post in the middle part of the electromagnet of falling feeding crank, the pin shaft is set on the electromagnet of the falling feeding pull rod.
A kind of sewing machine, including fall feeding adjusting device, it is described fall feeding adjusting device be as described in any one of the above embodiments
Feeding adjusting device.
Feeding adjusting device provided by the invention is adjusted in switching feeding and the during of falling feeding by actuator
Position of the eccentric wheel of falling feeding relative to feed spool, thus change the position of the connecting rod of falling feeding, the crank of falling feeding position with
And the angle of feed spool, it realizes switching, will realize that switching is replaced with by swing seat swing in the prior art and be sent by adjusting
Expect that eccentric wheel realizes switching relative to the position of feed spool, long connecting rod is swung in handoff procedure without movement, there is no existing
Have to swing the upper axis movement of long connecting rod drive in technology and then feed regulator is made to adjust stud with feeding and switches asking for contact point
Topic.After the eccentric wheel of falling feeding is determined relative to the position of feed spool, the swing for swinging long connecting rod can be transferred to down feeding
The rotation of axis, the eccentric wheel of falling feeding can drive feed spool to rotate, and realize normal feeding.
Since in switching, the collision between limit hole and feed spool is that line contacts or face contact, compared to existing
The point contact of feed regulator and adjusting stud in technology is collided to limit, and can greatly be reduced and be backstitched making an uproar for generation in the process
Sound so as to improve the working environment of staff, and advantageously reduces abrasion to prolong the service life.
It is provided by the invention including it is above-mentioned fall feeding adjusting device sewing machine, during backstitching noise it is smaller, abrasion compared with
It is few.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the first structure diagram of feed regulation in the prior art；
Fig. 2 is the second structural schematic diagram of feed regulation in the prior art；
Fig. 3 is the structural schematic diagram of feed regulator part in feed regulation in the prior art；
Fig. 4 is first structure diagram when feeding adjusting device provided by the present invention is applied to sewing machine；
Fig. 5 is the structural schematic diagram of feeding adjusting device provided by the present invention；
Fig. 6 is the connection structure diagram that long connecting rod and feeding crank are swung in feeding adjusting device provided by the present invention；
Fig. 7 is the connection structure diagram of the eccentric wheel of falling feeding and feed spool in feeding adjusting device provided by the present invention；
Fig. 8 is the connection structure of the crank of falling feed spool and the eccentric wheel of falling feeding in feeding adjusting device provided by the present invention
Figure；
Fig. 9 is the crank of falling feed spool, the eccentric wheel of falling feeding and the company of falling feeding in feeding adjusting device provided by the present invention
First connection structure diagram of bar；
Figure 10 is the crank of falling feed spool, the eccentric wheel of falling feeding and the company of falling feeding in feeding adjusting device provided by the present invention
Second connection structure diagram of bar；
Figure 11 is the connection structure diagram of the connecting rod of falling feeding and the crank of falling feeding in feeding adjusting device provided by the present invention；
Figure 12 is the connection of the connecting rod of falling feeding, the crank of falling feeding and feed spool in feeding adjusting device provided by the present invention
Structure chart；
Figure 13 is the side view of feeding adjusting device provided by the present invention；
Figure 14 is elastic component, the electromagnet of falling feeding and the eccentric wheel of falling feeding in feeding adjusting device provided by the present invention
Connection structure diagram；
Figure 15 is the connection structure diagram of elastic component and the eccentric wheel of falling feeding in feeding adjusting device provided by the present invention.
Fig. 1 is into Fig. 3:
01- feed regulator, 02- feeding adjust stud, and 03- backstitches connecting rod, 04- swing seat, the upper axis of 05-, and 06- feeding is inclined
Heart wheel, 07- feeding connecting rod, 08- swing long connecting rod, and 09- swings short connecting rod, 010- feeding crank, 011- feed spool；
Fig. 4 is into Figure 15:
The upper axis of 1-, 2- feeding eccentric wheel, 3- feeding connecting rod, 4- swing seat, 5- swing short connecting rod, and 6- swings long connecting rod, 7-
Feeding crank, 8- fall feed spool, the 9- crank of falling feed spool, 91- straight, the 10- eccentric wheel of falling feeding, 101- limit hole,
102- locating rod, 103- eccentric wheel ontology, the 11- connecting rod of falling feeding, the 12- crank of falling feeding, 13- feed spool, the 14- electromagnetism of falling feeding
Iron, the 15- electromagnet of falling feeding connecting rod, the 16- electromagnet of falling feeding crank, the 17- electromagnet of falling feeding pull rod, 171- pin shaft, 18- bullet
Property part.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Core of the invention is to provide a kind of feeding adjusting device, and noise is smaller during backstitching, it is less to wear.This hair
Bright another core is to provide a kind of sewing machine including above-mentioned feeding adjusting device, and noise is smaller during backstitching, wears
It is less.
In a kind of specific embodiment of feeding adjusting device provided by the present invention, Fig. 4 to Figure 15 is please referred to, including swing
Long connecting rod 6, feed spool 13, feed spool 8, the eccentric wheel of falling feeding 10, the crank of falling feed spool 9 and actuator.
The transmission connection of feed spool 8 swings the swing of long connecting rod 6 and is able to drive down 8 rotation of feed spool in swinging long connecting rod 6.
Optionally, feeding crank 7, which is rotationally connected with, swings long connecting rod 6, and feed spool 8 is fixedly connected on feeding crank 7,
Swing long connecting rod 6 drive under, feeding crank 7 by fall feed spool 8 rotation center centered on swung, in feeding crank 7
Drive 8 rotation of feed spool during swing.It, specifically can be with reference to existing for swinging the movement of long connecting rod 6 in sewing machine
There is technology, as shown in fig. 6, swinging long connecting rod 6 is connected to feeding connecting rod 3, the transmission connection of feeding connecting rod 3 swings long connect in upper axis 1
Bar 6 can make 7 reciprocally swinging of feeding crank by the reciprocating drive of feeding connecting rod 3 to feeding crank 7.In addition, the swing is long
Connecting rod 6 specifically can be set in swing seat 4.
Certainly, feed spool 8 can also realize the transmission connection with swing long connecting rod 6 by other link assemblies.
The eccentric wheel of falling feeding 10 is equipped with limit hole 101, and 101 empty set of limit hole is on feed spool 8, limit hole 101
It is adjustable with the relative position of feed spool 8.Wherein, referring to FIG. 7, limit hole 101 is specifically as follows, can to limit down feeding inclined
Strip-shaped hole of the heart wheel 10 relative to 8 linear movement of feed spool, and the both ends of limit hole 101 can be logical with feed spool 8 respectively
Cross line contact or face contact limit.Preferably, limit hole 101 can be slotted hole, to be further reduced impact damage and make an uproar
Sound.
The crank of falling feed spool 9 is connected between the eccentric wheel of falling feeding 10 and feed spool 8 so that the eccentric wheel of falling feeding 10 with
Feed spool 8 rotates synchronously.In the feeding process, by the position-limiting action of the crank of falling feed spool 9, the eccentric wheel of falling feeding 10 is fallen
Both feed spools 8 are rotated synchronously relative to the rotation center of feed spool 8.
Actuator is for driving the eccentric wheel of falling feeding 10 to move, to change limit hole 101 and feed spool 8 is diametrically
Position, to realize feeding and the switching of feeding.The eccentric wheel of falling feeding 10 is sequentially connected in feed spool 13, the eccentric wheel of falling feeding
10 movements are able to drive 13 rotation of feed spool.
The when of falling feeding process, is being switched by feeding process, actuator drives the eccentric wheel of falling feeding 10 to move, makes limit hole 101
In it is default fall feeding position move to down at feed spool 8,13 corresponding sports of feed spool to the initial position of falling feeding.Backstitching knot
Shu Hou, when by the switching of falling feeding process feeding process, actuator drives the eccentric wheel of falling feeding 10 to move, and makes in limit hole 101
Default feeding position moves to down at feed spool 8, the initial position of 13 corresponding sports of feed spool to feeding.
Specific other end is the end face B referring to FIG. 7, an end face of limit hole 101 is the end face A, in the end face A and the end face B
One of for it is default fall feeding position, another one is default feeding position.
It is default feeding position with the end face A, the end face B is to be illustrated for presetting feeding position.Such as Fig. 4 and Fig. 5 institute
Show, in the feeding process, the eccentric wheel of falling feeding 10 is tangent in the end face A with feed spool 8, and upper axis 1 and feeding eccentric wheel 2 rotate band
Dynamic feeding connecting rod 3 is swung, and then by swing seat 4, swing long connecting rod 6 and the collective effect for swinging short connecting rod 5, makes feeding crank
7 swing and feed spool 8 are driven down to rotate, meanwhile, the crank of falling feed spool 9 drives the eccentric wheel of falling feeding 10 around 8 axle center of feed spool
Rotation drives feed spool 13 to rotate, realizes normal feeding function to drive.When needing the when of falling feeding, actuator promotion is sent
Expect eccentric wheel 10, keeps the eccentric wheel of falling feeding 10 tangent in the end face B with feed spool 8, the corner of feed spool 13 accordingly adjusts, with reality
The now function of falling feeding.After feeding process, the eccentric wheel of falling feeding 10 is tangent in the end face A with feed spool 8.
In the present embodiment, in switching feeding and the during of falling feeding, 10 phase of the eccentric wheel of falling feeding is adjusted by actuator
For falling the position of feed spool 8, to change the position of the connecting rod of falling feeding 11, the position of the crank of falling feeding 12 and feed spool 13
Angle, realize switching, will in the prior art by swing seat 4 swing realize switching replace with by adjust the eccentric wheel of falling feeding
The 10 position realization switching relative to feed spool 8 swings long connecting rod 6 without movement, there is no existing skills in handoff procedure
The problem of long connecting rod 6 drives upper axis movement and then feed regulator and feeding is made to adjust stud switching contact point is swung in art.?
After the eccentric wheel of falling feeding 10 is determined relative to the position of feed spool 8, the swing for swinging long connecting rod 6 can be transferred to down feed spool
8, the rotation of the eccentric wheel of falling feeding 10 can drive feed spool 13 to rotate, and realize normal feeding.
Since in switching, the collision between limit hole 101 and feed spool 8 is that line contacts or face contact, compared to
Feed regulator in the prior art and the point contact for adjusting stud are collided to limit, and can greatly be reduced and be generated during backstitching
Noise, so as to improve the working environment of staff, and advantageously reduce abrasion to prolong the service life.
On the basis of the above embodiments, feeding adjusting device can also include the connecting rod of falling feeding 11 and the crank of falling feeding
12.One end of the connecting rod of falling feeding 11 is rotatably sleeved on the eccentric wheel of falling feeding 10, and one end of the crank of falling feeding 12 is fixed to be connected
Feeding axis 13 and the other end are hinged on the connecting rod of falling feeding 11.The connecting rod of falling feeding 11 with the eccentric wheel of falling feeding 10 eccentric rotary
And swing, the crank of falling feeding 12 is swung with the swing of the connecting rod of falling feeding 11, and then drives 13 rotation of feed spool.Specifically, it limits
With when feed spool 8 contacts, the eccentric wheel of falling feeding 10 is in eccentric state, limit hole relative to feed spool 8 for the one end in position hole 101
For 101 other end with when feed spool 8 contacts, the eccentric wheel of falling feeding 10 is also in eccentric state relative to feed spool 8.
In the feeding process or in feeding process, in feed spool 13, the crank of falling feeding 12 and the eccentric wheel of falling feeding
Under 10 constraint and under the eccentric drive of the eccentric wheel of falling feeding 10, the connecting rod of falling feeding 11 is swung, while driving feeding
Crank 12 is swung, and the crank of falling feeding 12 drives 13 rotation of feed spool, utilizes the eccentric motion of the eccentric wheel of falling feeding 10 and two
Connecting rod is the transmission realized between feed spool 13 and the eccentric wheel of falling feeding 10, and structure is simple.
The when of falling feeding process, is being switched by feeding process, actuator drives the eccentric wheel of falling feeding 10 to move, makes limit hole 101
In it is default fall feeding position move to down at feed spool 8, and pass through the crank of falling feed spool 9 limit.After switching, the bias of falling feeding
Wheel 10 is in eccentric state, the connecting rod of falling feeding 11, the crank of falling feeding 12 and feed spool 13 relative to the rotation center of feed spool 8
Corresponding sports are to the initial position of falling feeding.After backstitching, when by the switching of falling feeding process feeding process, actuator drives
Feeding eccentric wheel 10 moves, and moves to down the default feeding position in limit hole 101 at feed spool 8 and by the crank of falling feeding
12 limits.After switching, the eccentric wheel of falling feeding 10 relative to feed spool 8 rotation center be in eccentric state, the connecting rod of falling feeding 11,
The crank of falling feeding 12 and 13 corresponding sports of feed spool to feeding initial position.
Be still default feeding position with the end face A as shown in Fig. 4, Fig. 5, Fig. 7, the end face B be it is default fall feeding position for into
Row explanation.As shown in Figure 4 and Figure 5, in the feeding process, the eccentric wheel of falling feeding 10 and feed spool 8 are tangent in the end face A, upper axis 1
Rotating with feeding eccentric wheel 2 drives feeding connecting rod 3 to swing, and then passes through swing seat 4, swings long connecting rod 6 and swings short connecting rod 5
Collective effect swings feeding crank 7 and feed spool 8 is driven down to rotate, meanwhile, the crank of falling feed spool 9 drives the bias of falling feeding
Wheel 10 is rotated around 8 axle center of feed spool, to drive the connecting rod of falling feeding 11 and the crank of falling feeding 12 to swing, due to the crank of falling feeding
12 with feed spool 13 be to be fixedly connected, and the crank of falling feeding 12 drives feed spool 13 to rotate, and realizes normal feeding function.When needs fall
When feeding, actuator pushes the eccentric wheel of falling feeding 10, make the eccentric wheel of falling feeding 10 and feed spool 8 in the end face B tangent, feed spool
13 corner accordingly adjusts, to realize the function of falling feeding.After feeding process, the eccentric wheel of falling feeding 10 and feed spool
8 is tangent in the end face A.
On the basis of the above embodiments, Fig. 8 and Fig. 9 are please referred to, the outer peripheral surface of the eccentric wheel of falling feeding 10 may include circle
Cylinder, one end of the connecting rod of falling feeding 11 are fixed with connection ring, and connection ring is to be pivotably engages with to be sheathed on cylindrical surface
Annulus, wherein annulus refers to that the inner peripheral surface of connection ring is cylindrical surface, the inner peripheral surface by the annulus and the bias of falling feeding
Cylindrical surface on wheel 10 fits cooperation.
In the present embodiment, by the cooperation between the eccentric wheel of falling feeding 10 and the connecting rod of falling feeding 11 by cylindrical surface, compared to
It is set as irregular shape, can be easy to process, and the eccentric wheel of falling feeding 10 wears small, sewing with 8 long-term work of feed spool
Performance is more stable, it is ensured that the stationarity of transmission.
On the basis of the above embodiments, referring to FIG. 8, the eccentric wheel of falling feeding 10 can specifically include eccentric wheel ontology
103 and it is fixed on the locating rod 102 of eccentric wheel ontology 103, limit hole 101 is arranged on eccentric wheel ontology 103, the connecting rod of falling feeding
11 are sheathed on eccentric wheel ontology 103, and the crank of falling feed spool 9 is fixed on down on feed spool 8.Locating rod 102 and the song of falling feed spool
Straight 91 on handle 9 is slidably connected, and the extending direction of straight 91 is parallel to the extending direction of limit hole 101, with limit
Glide direction of the actuator processed driving eccentric wheel of falling feeding 10 relative to feed spool 8, at this point, the crank of falling feed spool 9 is to sending
Expect that eccentric wheel 10 other than having circumferential limit function, also has radially-directed effect, 10 diameter of the eccentric wheel of falling feeding can be improved
To the stationarity of movement.
Based on any of the above embodiments, actuator specifically can connect on the connecting rod of falling feeding 11.Due to sending
Expect that connecting rod 11 and the rotation of the eccentric wheel of falling feeding 10 are socketed, drives the connecting rod of falling feeding 11 mobile or translation can drive the bias of falling feeding
Wheel 10 is mobile or translates, to change the relative position of limit hole 101 with feed spool 8, can be convenient the connection of actuator, drives
Moving part is connected directly between down on feed spool 8 without the eccentric wheel of falling feeding 10 is needed guiding through.
On the basis of the above embodiments, Fig. 5 and Figure 13 are please referred to, actuator can specifically include the electromagnet of falling feeding 14
With the link assembly for the output end for being connected to the electromagnet of falling feeding 14, link assembly is equipped with pin shaft 171, the pin shaft 171 connection
In on the connecting rod of falling feeding 11.Optionally, when the electromagnet of falling feeding 14 is powered, link assembly drives the eccentric wheel of falling feeding 10 to move to
Default feeding position, when the electromagnet of falling feeding 14 powers off, link assembly drives the eccentric wheel of falling feeding 10 to move to default feeding
Position.It is controlled using electromagnet, advantageously ensures that switch speed, it is ensured that the timeliness of switching.
On the basis of the above embodiments, referring to FIG. 10, the connecting hole empty set on the connecting rod of falling feeding 11 is in actuator
On pin shaft 171, between connecting hole and pin shaft 171 there is certain gap can subtract then when the crank of falling feeding 12 is swung
Shock between few connecting hole and pin shaft 171, to reduce environmental noise.
On the basis of the above embodiments, as shown in Figure 14 and Figure 15, actuator specifically can also include being connected to positioning
Elastic component 18 on bar 102.When the electromagnet of falling feeding 14 is powered, link assembly drives the eccentric wheel of falling feeding 10 to overcome elastic component 18
Reset force movement, contact one end of limit hole 101 with feed spool 8.When the electromagnet of falling feeding 14 powers off, elastic component 18
Reset force drives the eccentric wheel of falling feeding 10 to move, and contacts the other end of limit hole 101 with feed spool 8, thus by elasticity
The external motivating force of part 18 or the electromagnet of falling feeding 14 reliably realizes the radially fixed of the eccentric wheel of falling feeding 10.
On the basis of the above embodiments, link assembly can specifically include the electromagnet of falling feeding connecting rod 15, the electricity of falling feeding
Magnet crank 16 and the electromagnet of falling feeding pull rod 17, the electromagnet of falling feeding connecting rod 15 are fixedly connected on the defeated of the electromagnet of falling feeding 14
Outlet, one end of the electromagnet of falling feeding crank 16 is articulated with the electromagnet of falling feeding connecting rod 15 and the other end is articulated with the electromagnetism of falling feeding
The middle part of iron pull rod 17, the electromagnet of falling feeding crank 16 is rotationally connected on limited post, and pin shaft 171 is arranged in the electromagnet of falling feeding
On pull rod 17.
The electromagnet of falling feeding 14 starts, and the electromagnet of falling feeding connecting rod 15 is pushed or pulled, the electromagnet of falling feeding crank
16 are swung in the drive of the electromagnet of falling feeding connecting rod 15 around limited post, and the swing drive of the electromagnet of falling feeding connecting rod 15 is sent
Expect that electromagnet pull rod 17 moves, the electromagnet of falling feeding pull rod 17 pushes the eccentric wheel of falling feeding 10, to realize switching.
In the present embodiment, by the setting of link mechanism, the electromagnet of falling feeding 14 and the eccentric wheel of falling feeding 10 can be improved
Between position setting flexibility.
Certainly, in other embodiments, locating rod 102 and the crank of falling feed spool 9 can also be by mating and pass through
Frictional force realizes locking radial.In switching, actuator drives the eccentric wheel of falling feeding 10 to move relative to feed spool 8, positioning
Bar 102 overcomes the frictional force between the crank of falling feed spool 9 to slide relative to the crank of falling feed spool 9, and after the completion of the switching in,
Locating rod 102 is mutually locked by frictional force to keep opposing stationary with the crank of falling feed spool 9.
In addition to above-mentioned feeding adjusting device, the present invention also provides a kind of sewing machine, which includes the tune of falling feeding
Regulating device, be specifically as follows provided in any of the above embodiment fall feeding adjusting device, beneficial effect can accordingly with reference to
Upper each embodiment.Refer to the prior art for the structure of other each sections of the sewing machine, and repeats no more herein.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
To sewing machine provided by the present invention and its, feeding adjusting device is described in detail above.It is used herein
A specific example illustrates the principle and implementation of the invention, and the above embodiments are only used to help understand
Method and its core concept of the invention.It should be pointed out that for those skilled in the art, not departing from this
, can be with several improvements and modifications are made to the present invention under the premise of inventive principle, these improvement and modification also fall into the present invention
In scope of protection of the claims.
Claims (9)
1. one kind feeding adjusting device, including swing long connecting rod (6) and feed spool (13) characterized by comprising
It is sequentially connected and swings falling feed spool (8) for long connecting rod (6) in described, the swing long connecting rod (6) swings and is able to drive institute
State down feed spool (8) rotation；
The eccentric wheel of falling feeding (10), the eccentric wheel of falling feeding (10) are equipped with limit hole (101), and the limit hole (101) is empty
It is placed on feed spool (8), the limit hole (101) is that can limit the eccentric wheel of falling feeding (10) relative to described
The strip-shaped hole of feed spool (8) linear movement, and the both ends of the limit hole (101) can respectively with it is described fall feed spool (8)
Pass through line contact or face contact limit；
For making the eccentric wheel of falling feeding (10) and the crank of falling feed spool (9) that feed spool (8) rotate synchronously, connection
Between the eccentric wheel of falling feeding (10) and feed spool (8)；
For driving the eccentric wheel of falling feeding (10) movement, to change the limit hole (101) and feed spool (8)
The actuator of diametrically opposite position, the eccentric wheel of falling feeding (10) transmission connection is in the feed spool (13), the feeding
Eccentric wheel (10) movement is able to drive the feed spool (13) rotation.
2. feeding adjusting device according to claim 1, which is characterized in that further include:
The connecting rod of falling feeding (11), one end of the connecting rod of falling feeding (11) are rotationally sheathed on the eccentric wheel of falling feeding
(10), the connecting rod of falling feeding (11) swings with the eccentric rotary of the eccentric wheel of falling feeding (10)；
One end of the crank of falling feeding (12), the crank of falling feeding (12) is fixedly connected with feed spool (13) and the other end is articulated with institute
It states the connecting rod of falling feeding (11), the crank of falling feeding (12) swings with the swing of the connecting rod of falling feeding (11), and then drives
Feed spool (13) rotation.
3. feeding adjusting device according to claim 2, which is characterized in that the periphery of the eccentric wheel of falling feeding (10)
Face includes cylindrical surface, and one end of the connecting rod of falling feeding (11) is fixed with connection ring, and the connection ring is to be rotatably engaged
In the annulus being sheathed on the cylindrical surface.
4. feeding adjusting device according to claim 2 or 3, which is characterized in that the eccentric wheel of falling feeding (10) packet
It includes eccentric wheel ontology (103) and is fixed on the locating rod (102) of the eccentric wheel ontology (103), the limit hole (101) is set to
On the eccentric wheel ontology (103), the connecting rod of falling feeding (11) is sheathed on the eccentric wheel ontology (103), described to send
Material axis crank (9) be fixed on it is described fall feed spool (8) on, the locating rod (102) with it is straight on the crank of falling feed spool (9)
Line sliding slot (91) is slidably connected, and the extending direction of the straight (91) is parallel to the extending direction of the limit hole (101),
The glide direction of the eccentric wheel of falling feeding (10) relative to feed spool (8) is driven to limit the actuator.
5. feeding adjusting device according to claim 4, which is characterized in that the actuator includes the electromagnet of falling feeding
(14) and be connected to the electromagnet of falling feeding (14) output end link assembly, the link assembly is equipped with pin shaft
(171), the pin shaft (171) is connected on the connecting rod of falling feeding (11).
6. it is according to claim 5 fall feeding adjusting device, which is characterized in that the actuator further include be connected to it is described
Elastic component (18) in locating rod (102)；
When the electromagnet of falling feeding (14) is powered, the link assembly drives the eccentric wheel of falling feeding (10) to overcome the bullet
Property part (18) reset force movement, make one end of the limit hole (101) with it is described feed spool (8) contact；
When the electromagnet of falling feeding (14) powers off, the reset force of the elastic component (18) drives the eccentric wheel of falling feeding (10)
Movement contacts the other end of the limit hole (101) with feed spool (8).
7. feeding adjusting device according to claim 5, which is characterized in that the connection on the connecting rod of falling feeding (11)
Hole is placed on the pin shaft (171).
8. feeding adjusting device according to claim 5, which is characterized in that the link assembly includes the electromagnetism of falling feeding
Iron connecting rod (15), the electromagnet of falling feeding crank (16) and the electromagnet of falling feeding pull rod (17), the electromagnet of the falling feeding connecting rod
(15) it is fixedly connected on the output end of the electromagnet of falling feeding (14), one end of the electromagnet of the falling feeding crank (16) is hinged
In the electromagnet of the falling feeding connecting rod (15) and the other end is articulated with the electromagnet of the falling feeding pull rod (17), the electricity of falling feeding
Magnet crank is rotationally connected on limited post in the middle part of (16), and the pin shaft (171) is set to the electromagnet of the falling feeding pull rod
(17) on.
9. a kind of sewing machine, including fall feeding adjusting device, which is characterized in that it is described fall feeding adjusting device be claim 1
To 8 described in any item feeding adjusting devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910037679.4A CN109457401B (en) | 2019-01-15 | 2019-01-15 | Sewing machine and reverse feeding adjusting device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910037679.4A CN109457401B (en) | 2019-01-15 | 2019-01-15 | Sewing machine and reverse feeding adjusting device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109457401A true CN109457401A (en) | 2019-03-12 |
| CN109457401B CN109457401B (en) | 2021-03-09 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910037679.4A Active CN109457401B (en) | 2019-01-15 | 2019-01-15 | Sewing machine and reverse feeding adjusting device thereof |
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| CN (1) | CN109457401B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989184A (en) * | 2019-04-25 | 2019-07-09 | 杰克缝纫机股份有限公司 | Backstitch regulating mechanism and the sewing machine using the mechanism |
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| CN102797119B (en) * | 2012-08-29 | 2014-07-23 | 池州市旭豪机械有限公司 | Forward and reverse feeding device for industrial column type sewing machine |
| CN204959246U (en) * | 2015-09-19 | 2016-01-13 | 浙江中捷缝纫科技有限公司 | Sewing machine's backstitch structure |
| CN207699793U (en) * | 2018-01-05 | 2018-08-07 | 杰克缝纫机股份有限公司 | A kind of gapless drive mechanism of falling feeding automatically |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB125070A (en) * | 1918-03-30 | 1920-01-29 | Martin Hemleb | Reversible Feeding Mechanism for Sewing Machines. |
| US3157141A (en) * | 1961-10-09 | 1964-11-17 | Singer Co | Feed adjusting and reversing mechanism for sewing machines |
| US3949691A (en) * | 1975-04-25 | 1976-04-13 | The Singer Company | Automatic back-tack mechanism |
| CN201924162U (en) * | 2010-12-07 | 2011-08-10 | 陈瑞文 | Sewing machine switching control mechanism capable of synchronously controlling rotation directions of feeding wheels and needle feeding direction |
| CN102797119B (en) * | 2012-08-29 | 2014-07-23 | 池州市旭豪机械有限公司 | Forward and reverse feeding device for industrial column type sewing machine |
| CN204959246U (en) * | 2015-09-19 | 2016-01-13 | 浙江中捷缝纫科技有限公司 | Sewing machine's backstitch structure |
| CN207699793U (en) * | 2018-01-05 | 2018-08-07 | 杰克缝纫机股份有限公司 | A kind of gapless drive mechanism of falling feeding automatically |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109989184A (en) * | 2019-04-25 | 2019-07-09 | 杰克缝纫机股份有限公司 | Backstitch regulating mechanism and the sewing machine using the mechanism |
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| Publication number | Publication date |
|---|---|
| CN109457401B (en) | 2021-03-09 |
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Address after: 318000 no.1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |
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