CN109338603A - Sewing machine backstitches mechanism and sewing machine - Google Patents
Sewing machine backstitches mechanism and sewing machine Download PDFInfo
- Publication number
- CN109338603A CN109338603A CN201811244556.XA CN201811244556A CN109338603A CN 109338603 A CN109338603 A CN 109338603A CN 201811244556 A CN201811244556 A CN 201811244556A CN 109338603 A CN109338603 A CN 109338603A
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- Prior art keywords
- eccentric wheel
- sewing machine
- feed
- main shaft
- eccentric
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Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/02—Work-feeding means with feed dogs having horizontal and vertical movements
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/24—Feed-dog lifting and lowering devices
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/02—Mechanical drives
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/10—Electrical or electromagnetic drives
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
What the present invention provided a kind of sewing machine backstitches mechanism and sewing machine comprising: main shaft, work feed component and lift dental assembly, main shaft in work feed component cloth pushing shaft, lift the feed lifting rock shaft in dental assembly and be parallel to each other；Offset assembly, including the first eccentric wheel, the second eccentric wheel and the phase adjusted part being set on the main shaft, first eccentric wheel is fixedly linked with the main shaft and being connected with the feed lifting rock shaft makes feed dog pump, and the second eccentric wheel is connected with the cloth pushing shaft makes feed dog front-rear reciprocation movement；Second eccentric wheel and the first eccentric wheel axially position and when the first eccentric wheel is with the main axis, are able to drive the rotation of the second eccentric wheel；Phase adjusted part is connected with actuator, the main shaft described in the drive lower edge of actuator is axially moved, second eccentric wheel slides axially with phase adjusted part to be connected, and the generation of the second eccentric wheel circumferentially rotates in sliding axially, so that the eccentric phase of the second eccentric wheel is changed half period, completes positive seam process and backstitch the alternating of process.Present invention reduces noises when backstitching, and improve the aesthetics of stitching.
Description
Technical field
Technical field is backstitched the present invention relates to sewing machine, backstitches mechanism and sewing more particularly to a kind of sewing machine
Machine.
Background technique
Existing sewing machine, as shown in Figure 1, sewing machine backstitch the realization process of function automatically under a certain needle gage: backstitching electricity
Magnet (not shown) is powered, and pulls work feed swing seat 5 to rotate around fixed pin by the pull rod of falling feeding 1, and work feed swing seat 5 turns
It is dynamic to drive feed regulator 2 to rotate by the pull rod of falling feeding 23, and then adjust the upper arc surface of feed regulator 2 and needle gage
Stud 1 is in contact, so that limit the rotational angle that work feed swing seat 5 backstitches to realize sewing machine backstitches function.Due to automatic
When backstitching, backstitch that the electromagnet response time is very short (millisecond rank), and the kinetic energy being applied on feed regulator 2 is very big, feeding tune
It the head of section device 2 and needle gage adjusting stud 1, will there are rigid collision (several milliseconds of speed by feed regulator 2 is reduced to zero)
Very big impact is generated, is exactly the very big sound in reflection to machine, and needle gage is bigger, the sound is bigger.
In addition, backstitching all is to limit work feed swing seat 5 by the upper arc surface of feed regulator 2 in differing needles away under
Corner, due to part manufacturing error, when actual installation, can only guarantee just to stitch and backstitch under a certain needle gage (being assumed to be A needle gage)
Needle gage is overlapped, and it is more that needle gage when machine operation deviates A needle gage, just stitching and backstitching pinprick be overlapped it is poorer, to affect stitching
Aesthetics.
Therefore, it is necessary to a kind of low noise, just stitch and backstitch pinprick be overlapped can be overlapped backstitch mechanism.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of sewing machine backstitch mechanism and
Sewing machine, noise is big when for solving the problems, such as to backstitch in the prior art, backward stitch is inaesthetic.
In order to achieve the above objects and other related objects, what the present invention provided a kind of sewing machine backstitches mechanism comprising:
Main shaft and the work feed component and lift dental assembly of driving feed dog movement, cloth pushing shaft in main shaft and work feed component,
Feed lifting rock shaft in lift dental assembly is parallel to each other；
Offset assembly, including be set to the main shaft on the first eccentric wheel, the second eccentric wheel and phase adjusted part, first
Eccentric wheel is fixedly linked with the main shaft and being connected with the feed lifting rock shaft makes feed dog pump, the second eccentric wheel with
The cloth pushing shaft, which is connected, makes feed dog front-rear reciprocation movement；
Second eccentric wheel and the first eccentric wheel axially position and the first eccentric wheel are with being capable of band when the main axis
Dynamic second eccentric wheel rotation；Phase adjusted part is connected with actuator, the main shaft described in the drive lower edge of actuator is axially moved, institute
It states the second eccentric wheel and slides axially with phase adjusted part and be connected, and the generation of the second eccentric wheel circumferentially rotates in sliding axially, and makes
The eccentric phase of second eccentric wheel changes half period, completes positive seam process and backstitches the alternating of process.
Preferably, reset spring is equipped between the phase adjusted part and the main shaft.
Preferably, the actuator is electromagnet.
Preferably, second eccentric wheel is connected with the first eccentric wheel by concaveconvex structure, convex in the concaveconvex structure
Axial limiting is played in groove, and the groove width of the groove in the circumferential meets: second eccentric wheel is in the phase adjusted
Part drives and circumferentially rotates described in lower make.
Preferably, second eccentric wheel is equipped with pillar, and the phase adjusted part is equipped with axially extending guide groove,
The pillar is placed in the guide groove and can slide along guide groove, and the both ends center line of the guide groove is symmetrically distributed in phase
The two sides of regulating part axis.
Preferably, the pillar is connected by support frame with second eccentric wheel.
Preferably, first eccentric wheel is connected by lifting tooth connecting rod with the feed lifting rock shaft.
Preferably, second eccentric wheel is connected by work feed connecting rod, work feed swing seat with the cloth pushing shaft.
The present invention also provides a kind of sewing machines, backstitch mechanism with sewing machine as described above.
As described above, sewing machine of the invention backstitches mechanism and sewing machine, have the advantages that using phase tune
The axial movement of part is saved circumferentially rotate the second eccentric wheel, and then work feed eccentric phase is changed into half period, i.e., from positive seam
State becomes backstitching state, during eccentric phase changes, feed lifting rock shaft proper motion, and the up and down motion and send that feed lifting rock shaft drives
Cloth is shaft-driven to change moving forward and backward for phase, and two motion synthesis obtain backstitching the feed dog path under state together, real
Now backstitch；Due to only changing the phase of work feed bias, work feed component is simultaneously had not been changed, thus is just being stitched feed dog path and backstitched and sending
Cloth tooth track can be overlapped well with the interface point of needle plate plane, so as to improve the aesthetics of stitching；In addition no setting is required spiral shell
Column, also with regard to noiseless generation.
Detailed description of the invention
Fig. 1 is shown as sewing machine in the prior art and backstitches structural scheme of mechanism.
What Fig. 2 was shown as sewing machine of the invention backstitches structural scheme of mechanism.
Fig. 3 is shown as offset assembly schematic diagram of the invention.
Fig. 4 is shown as phase adjusted part schematic diagram of the invention.
Fig. 5 shows the feed dog path schematic diagram being positive when stitching.
Feed dog path schematic diagram when Fig. 6 is shown as backstitching.
Fig. 7 is shown as the phase change schematic diagram of work feed bias of the invention.
Component label instructions
1 needle gage adjusts stud
2 feed regulators
3 pull rods of falling feeding two
4 pull rods of falling feeding one
5 work feed swing seats
6 main shafts
7 feed lifting rock shafts
8 cloth pushing shafts
9 offset assemblies
91 first eccentric wheels
911 grooves
92 second eccentric wheels
921 protrusions
93 pillars
94 phase adjusted parts
941 guide grooves
95 support frames
10 work feed connecting rods
11 lift tooth connecting rods
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
Fig. 1 is please referred to Fig. 7.It should be clear that structure, ratio, size etc. depicted in this specification institute attached drawing, only to
Cooperate the revealed content of specification, so that those skilled in the art understands and reads, being not intended to limit the invention can be real
The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influencing the effect of present invention can be generated and the purpose that can reach, it should all still fall in disclosed skill
In the range of art content can cover.Meanwhile in this specification it is cited as "upper", "lower", "left", "right", " centre " and
The term of " one " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness
It is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
For sewing machine during sewing, the direction of advance of cloth is front-rear direction, and the direction of motion of eedle is up and down direction
(or for vertically to)；Feed dog motion profile is closed by pumping for feed dog with the front-rear reciprocation movement of feed dog
At pumping for feed dog drives completion by lift dental assembly, and the front-rear reciprocation movement of feed dog is by work feed Component driver
It completes.
Left side is feed dog path coordinate in Fig. 5, centre is work feed rule coordinate, right side is to lift tooth rule coordinate, in Fig. 6
Right side is feed dog path coordinate, centre be lift tooth rule coordinate, left side is work feed rule coordinate, in feed dog path coordinate system
AB to for needle plate plane extending direction, that is, horizontal direction, CD to for shank axis direction i.e. vertically to.
The decomposition for being illustrated in figure 5 the feed dog path of (being inverse time Needle cloth-feeding in the present embodiment) when just stitching under A needle gage is former
Reason；The decomposition principle for the feed dog path that Fig. 6 is shown when backstitching under A needle gage (being up time Needle cloth-feeding in the present embodiment).See Fig. 5
It is shown, an initial point is set on the feed dog path line just stitched, it, can be by the work feed of sewing machine since the moment where initial point
Tooth motion profile decomposes are as follows: the work feed rule of horizontal direction and the lift tooth rule of vertical direction.If the work feed rule in Fig. 5 is mentioned
The preceding or delay half period then work feed rule in available Fig. 6, the lift tooth rule in work feed rule and Fig. 5 in Fig. 6
Two motion synthesis get up can be obtained by backstitch feed dog path line (the i.e. feed dog in Fig. 6 of (up time Needle cloth-feeding) under A needle gage
Solid line in trajectory coordinates).Solid line is feed dog path line when backstitching in feed dog path coordinate in Fig. 6, and dotted line is positive seam
When feed dog path line (the feed dog path line in Fig. 5), can see from the comparison of solid line and dotted line, by change give
The phase of cloth, work feed drive mechanism have not been changed, feed dog path line when positive seam and feed dog path line and needle plate when backstitching
The interface point of plane can be overlapped well, show as A, B two o'clock in Fig. 6, so as to improve the aesthetics of stitching；And it is not necessarily to
Needle gage is set and adjusts stud and feed regulator, avoids the noise that the hard contact of the two generates.
It can be seen that: it can be achieved with work feed rule change half period to backstitch function；The eccentric phase of work feed is changed
Become half period, and during work feed eccentric phase changes, feed dog is moved to from the initial point just stitched and backstitches starting point (see figure
Shown in 6), the adjustment backstitched is realized with this.
As shown in Figures 2 and 3, what the present invention provided a kind of sewing machine backstitches mechanism comprising:
Main shaft 6 and the work feed component and lift dental assembly of driving feed dog movement, main shaft 6 and the work feed in work feed component
Feed lifting rock shaft 7 in axis 8, lift dental assembly is parallel to each other；
Offset assembly 9, including the first eccentric wheel 91, the second eccentric wheel 92 and phase tune being set on the main shaft 6
Part 94 is saved, the first eccentric wheel 91 is fixedly linked with the main shaft 6 and being connected with the feed lifting rock shaft 7 transports feed dog up and down reciprocatingly
Dynamic, the second eccentric wheel 92 is connected with the cloth pushing shaft 8 makes feed dog front-rear reciprocation movement；
Second eccentric wheel 92 and 91 axially position of the first eccentric wheel and when the first eccentric wheel 91 is rotated with the main shaft 6
It is able to drive the rotation of the second eccentric wheel 92；Phase adjusted part 94 is connected, under the drive of actuator with actuator (being unillustrated)
It is axially moved along the main shaft 6, second eccentric wheel 92 slides axially with phase adjusted part 94 is connected, and slides axially
The generation of second eccentric wheel 92 circumferentially rotates, and the eccentric phase of the second eccentric wheel 92 is made to change half period, completes just to stitch to change to backstitch
Or it backstitches and changes positive seam.
The present invention circumferentially rotates the second eccentric wheel 92 using the axial movement of phase adjusted part 94, and then work feed is inclined
Heart phase change half period becomes backstitching state from positive gap-like state, during work feed eccentric phase changes, feed lifting rock shaft 7
Proper motion, the change phase that the up and down motion and cloth pushing shaft 8 that feed lifting rock shaft 7 drives drive move forward and backward, two motion synthesis
It obtains backstitching the feed dog path under state together, realization backstitches, i.e., the present invention is able to achieve the feed dog rail backstitched in Fig. 6
Mark；Due to only changing the phase of work feed bias, work feed component is simultaneously had not been changed, thus is just being stitched feed dog path and backstitched feed dog
Track can be overlapped well with the interface point of needle plate plane, so as to improve the aesthetics of stitching；In addition no setting is required stud,
With regard to noiseless generation.
It is equipped with reset spring (being unillustrated) between phase adjusted part 94 and the main shaft 6 in the present embodiment, reset spring
It is arranged and is resetted convenient for the axial of phase adjusted part 94.Above-mentioned actuator is electromagnet, or other power provide part, only need
Phase condition part 94 can be driven to be axially moved when replacement backstitches.
In the present embodiment, above-mentioned first eccentric wheel 91 is connected by lifting tooth connecting rod 11 with the feed lifting rock shaft 7, when 6 turns of main shaft
When dynamic, drive feed lifting rock shaft 7 to swing by the first eccentric wheel 91, lift tooth connecting rod, realize the up and down motion of feed dog.Above-mentioned second partially
Heart wheel 92 is connected by work feed connecting rod 10, work feed swing seat 5 with the cloth pushing shaft 8, when main shaft 6 rotates, passes through the second bias
Wheel 92, work feed connecting rod 10, work feed swing seat 5 drive cloth pushing shaft 8 to swing, and realize moving forward and backward for feed dog.
It is connected to realize that above-mentioned second eccentric wheel 92 slides axially with phase adjusted part 94, and second inclined in sliding axially
The generation of heart wheel 92 circumferentially rotates, and as shown in Fig. 3 and Fig. 4, the second eccentric wheel 92 is equipped with pillar 93, the phase in the present embodiment
Regulating part 94 is equipped with axially extending guide groove 941, and pillar 93 is placed in the guide groove 941 and can be sliding along guide groove 941
Dynamic, the both ends center line of the guide groove 941 is symmetrically distributed in the two sides of phase adjusted part axis；As shown in Figure 7, when positive seam,
Pillar 93 is located at the first end of guide groove 941 on phase adjusted part 94, and the bias of the second eccentric wheel 92 and main shaft 6 is located at spindle shaft
The top of line；When phase adjusted part 94 is axially moved, pillar 93 slides into second end from the first end of guide groove 941, and leads
There is radial difference to the both ends of slot 941, also just cause circumferentially rotating for the second eccentric wheel 92, the bias of the second eccentric wheel 92 is located at
The lower section (work feed eccentricity is backstitched in figure) of main-shaft axis, changes the eccentric phase of the second eccentric wheel 92, that is, realizes
Stating makes the eccentric phase of the second eccentric wheel 92 change half period.
To be easily installed pillar in the present embodiment, above-mentioned pillar 93 passes through support frame 95 and 92 phase of the second eccentric wheel
Even, there is between pillar and the second eccentric wheel 92 axial distance when support frame 95, meet the axial movement of above-mentioned phase adjusted part 94.
Above-mentioned phase adjusted part 94 is equipped with symmetrical two guide grooves 941, the connection of the second eccentric wheel 92 in the present embodiment
Two above-mentioned pillars 93, the setting of two groups of pillars and guide groove, it can be ensured that the second eccentric wheel 92 circumferentially rotates and phase adjusted part
It does not rotate.If pillar and guide groove are one group, phase adjusted part and main shaft radial positioning can be made, i.e. phase adjusted part can be opposite
Main shaft is axially moved without can be carried out rotation.
Second eccentric wheel 92 structure being connected that slides axially with phase adjusted part 94 is without being limited thereto, need to only meet phase tune
Section part 94 drives the second eccentric wheel 92 to circumferentially rotate when sliding axially, and realizes that the eccentric phase of the second eccentric wheel 92 changes half week
Phase.
To make above-mentioned first eccentric wheel be able to drive the rotation of the second eccentric wheel, the second eccentric wheel 92 in the present embodiment when rotating
It is connected with the first eccentric wheel 91 by concaveconvex structure, and 921 axial limiting of protrusion in the concaveconvex structure is in groove 911,
And the groove width of the groove 911 in the circumferential meets: on second eccentric wheel 92 is made under the phase adjusted part 94 drive
It states and circumferentially rotates.The present embodiment protrusions 921 are located on the second eccentric wheel 92, and groove 911 is located at the first eccentric wheel 91, can pass through
The design of groove 911 makes raised 921 axial limitings in groove 911, avoiding transporting when phase adjusted part 94 far from the second eccentric wheel
When dynamic, the second eccentric wheel is driven to be axially moved, is detached from the second eccentric wheel 92 and the first eccentric wheel 91.Above-mentioned protrusion can also be set
It sets on the first eccentric wheel, and groove is arranged on the second eccentric wheel, and male-female engagement is only needed to realize that the first eccentric wheel drives second
Eccentric wheel rotation.
To make 91 axial limiting of above-mentioned second eccentric wheel 92 and the first eccentric wheel, it is ensured that above-mentioned phase adjusted part 94 is along axis
It is not separated to the first eccentric wheel 91 during movement and the second eccentric wheel 92；Above-mentioned raised 921 axis can be used in the present embodiment
Realize that groove 911 can be T-slot or dovetail groove to the structure for being limited in groove 911；It also can be used and limit be set on main shaft
The limit plate of position the second eccentric wheel 92 axial movement ensures the entirety of 91 axial direction of the second eccentric wheel 92 and the first eccentric wheel with this
Property, prevent the first eccentric wheel 91 and the second eccentric wheel 92 from separating.
The present invention also provides a kind of sewing machines, backstitch mechanism with sewing machine as described above, can pass through above-mentioned phase
Work feed eccentric phase is changed half period circumferentially rotate the second eccentric wheel 92 by the axial movement of position regulating part 94,
It realizes positive gap-like state and backstitches the transformation of state.
In conclusion sewing machine of the invention backstitches mechanism and sewing machine, using the axial movement of phase adjusted part come
The second eccentric wheel is circumferentially rotated, and then work feed eccentric phase is changed into half period, positive gap-like state can be realized and backstitches shape
The replacement of state；During eccentric phase changes, feed lifting rock shaft proper motion, the up and down motion and cloth pushing shaft driving of feed lifting rock shaft driving
Change phase move forward and backward, two motion synthesis obtain backstitching the feed dog path under state together, realization backstitches；By
In the phase for only changing work feed bias, work feed component is simultaneously had not been changed, thus is just being stitched feed dog path and backstitched feed dog path
It can be overlapped well with the interface point of needle plate plane, so as to improve the aesthetics of stitching；In addition no setting is required stud, also with regard to nothing
Noise generates.So the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (9)
1. a kind of sewing machine backstitches mechanism characterized by comprising
Main shaft and the work feed component and lift dental assembly of driving feed dog movement, main shaft and cloth pushing shaft, the lift tooth in work feed component
Feed lifting rock shaft in component is parallel to each other；
Offset assembly, it is eccentric including the first eccentric wheel, the second eccentric wheel and the phase adjusted part being set on the main shaft, first
Wheel is fixedly linked and being connected with the feed lifting rock shaft makes feed dog pump with the main shaft, the second eccentric wheel with it is described
Cloth pushing shaft, which is connected, makes feed dog front-rear reciprocation movement；
Second eccentric wheel and the first eccentric wheel axially position and when the first eccentric wheel is with the main axis is able to drive
The rotation of two eccentric wheels；Phase adjusted part is connected with actuator, the main shaft described in the drive lower edge of actuator is axially moved, and described the
Two eccentric wheels slide axially with phase adjusted part to be connected, and the generation of the second eccentric wheel circumferentially rotates in sliding axially, and makes second
The eccentric phase of eccentric wheel changes half period, completes positive seam process and backstitches the alternating of process.
2. sewing machine according to claim 1 backstitches mechanism, it is characterised in that: the phase adjusted part and the main shaft
Between be equipped with reset spring.
3. sewing machine according to claim 2 backstitches mechanism, it is characterised in that: the actuator is electromagnet.
4. sewing machine according to claim 1 backstitches mechanism, it is characterised in that: second eccentric wheel and the first bias
Wheel is connected by concaveconvex structure, the protrusion in the concaveconvex structure is axial to be limited in groove, and the groove is in the circumferential
Groove width meets: second eccentric wheel circumferentially rotates described in work under phase adjusted part drive.
5. sewing machine according to claim 1 backstitches mechanism, it is characterised in that: second eccentric wheel is equipped with convex
Column, the phase adjusted part are equipped with axially extending guide groove, and the pillar is placed in the guide groove and can be along guide groove
Sliding, the both ends center line of the guide groove are symmetrically distributed in the two sides of phase adjusted part axis.
6. sewing machine according to claim 5 backstitches mechanism, it is characterised in that: the pillar by support frame with it is described
Second eccentric wheel is connected.
7. sewing machine according to claim 1 backstitches mechanism, it is characterised in that: first eccentric wheel is connected by lift tooth
Bar is connected with the feed lifting rock shaft.
8. sewing machine according to claim 1 backstitches mechanism, it is characterised in that: second eccentric wheel is connected by work feed
Bar, work feed swing seat are connected with the cloth pushing shaft.
9. a kind of sewing machine, which is characterized in that have falling such as claim 1 to the described in any item sewing machines of claim 8
Stitch mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811244556.XA CN109338603B (en) | 2018-10-24 | 2018-10-24 | Sewing machine and backstitch mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811244556.XA CN109338603B (en) | 2018-10-24 | 2018-10-24 | Sewing machine and backstitch mechanism thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109338603A true CN109338603A (en) | 2019-02-15 |
| CN109338603B CN109338603B (en) | 2020-11-27 |
Family
ID=65311440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811244556.XA Active CN109338603B (en) | 2018-10-24 | 2018-10-24 | Sewing machine and backstitch mechanism thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109338603B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112981738A (en) * | 2019-12-13 | 2021-06-18 | 杰克缝纫机股份有限公司 | Lifting tooth height adjusting mechanism and overedger |
| CN113445215A (en) * | 2020-03-27 | 2021-09-28 | 杰克缝纫机股份有限公司 | Cloth feeding mechanism with adjustable cloth feeding time sequence and sewing machine |
| CN114000266A (en) * | 2020-07-28 | 2022-02-01 | 杰克缝纫机股份有限公司 | Adjusting structure in cloth feeding mechanism of sewing machine |
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| CN105019152A (en) * | 2015-06-30 | 2015-11-04 | 拓卡奔马机电科技有限公司 | Cloth delivery mechanism |
| CN204825280U (en) * | 2015-02-03 | 2015-12-02 | 上海富山精密机械科技有限公司 | Sewing machine's gauge needle directly drives control mechanism |
| CN107227560A (en) * | 2017-08-07 | 2017-10-03 | 台州市三本缝制设备有限公司 | A kind of new microcephaly's sewing machine |
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|---|---|---|---|---|
| FR2028501A1 (en) * | 1969-01-17 | 1970-10-09 | Textil Financ Auxiliaire | Fabric feed reversal device for sewing machines - machines |
| CN101864645A (en) * | 2009-04-20 | 2010-10-20 | Juki株式会社 | Cloth feeding device of sewing machine |
| CN204825280U (en) * | 2015-02-03 | 2015-12-02 | 上海富山精密机械科技有限公司 | Sewing machine's gauge needle directly drives control mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112981738A (en) * | 2019-12-13 | 2021-06-18 | 杰克缝纫机股份有限公司 | Lifting tooth height adjusting mechanism and overedger |
| CN112981738B (en) * | 2019-12-13 | 2022-07-05 | 杰克科技股份有限公司 | Lifting tooth height adjusting mechanism and overedger |
| CN113445215A (en) * | 2020-03-27 | 2021-09-28 | 杰克缝纫机股份有限公司 | Cloth feeding mechanism with adjustable cloth feeding time sequence and sewing machine |
| CN113445215B (en) * | 2020-03-27 | 2023-01-20 | 杰克科技股份有限公司 | Cloth feeding mechanism with adjustable cloth feeding time sequence and sewing machine |
| CN114000266A (en) * | 2020-07-28 | 2022-02-01 | 杰克缝纫机股份有限公司 | Adjusting structure in cloth feeding mechanism of sewing machine |
| CN114000266B (en) * | 2020-07-28 | 2023-06-09 | 杰克科技股份有限公司 | Adjusting structure in cloth feeding mechanism of sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109338603B (en) | 2020-11-27 |
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Address after: 318010 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. |