CN106012321A - Differential cloth-feed adjusting structure and sewing machine - Google Patents
Differential cloth-feed adjusting structure and sewing machine Download PDFInfo
- Publication number
- CN106012321A CN106012321A CN201610629468.6A CN201610629468A CN106012321A CN 106012321 A CN106012321 A CN 106012321A CN 201610629468 A CN201610629468 A CN 201610629468A CN 106012321 A CN106012321 A CN 106012321A
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- China
- Prior art keywords
- differential
- cloth
- sewing machine
- feeding
- crank
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Classifications
-
- 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
- D05B27/08—Work-feeding means with feed dogs having horizontal and vertical movements with differential feed motions
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B1/00—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both
- D05B1/08—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both for making multi-thread seams
- D05B1/18—Seams for protecting or securing edges
- D05B1/20—Overedge seams
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/02—Mechanical drives
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention provides a differential cloth-feed adjusting structure and a sewing machine. The differential cloth feed adjusting structure comprises a differential ratio adjusting part and a driving part, wherein the differential ratio adjusting part comprises a manual adjusting component, a differential connecting piece and a cloth-feed connecting rod; the manual adjusting component is in transmission connection with the differential connecting piece; one end of the cloth-feed connecting rod is hinged to the differential connecting piece and a differential connecting rod, so as to form a differential hinge point; the manual adjusting component is used for changing the position of the differential hinge point through the differential connecting piece; the differential connecting rod is connected to a differential feed dog rack; the differential feed dog rack is connected with a differential feed dog; the driving part comprises a feed connecting rod arranged on a spindle of the sewing machine, a cloth-feed shaft, a cloth-feed crank and a differential swing rod; the cloth-feed crank and the differential swing rod are fixed on the cloth-feed shaft in such a manner that preset included angles are formed between the cloth-feed crank and the differential swing rod; the feed connecting rod is connected with the cloth-feed crank; the differential swing rod is hinged to the other end of the cloth-feed connecting rod. According to the differential cloth-feed adjusting structure and the sewing machine, all the parts are easy to machine, and simple to mount, and the precise adjustment of the differential ratio is guaranteed.
Description
Technical field
The present invention relates to sewing machine technique field, particularly relate to a kind of differential cloth-feeding adjustment structure and sewing machine.
Background technology
Overedger is the one of sewing machine, and its stitching can be divided into single line, two-wire, three lines, four lines, five lines and six lines etc., main
Bound edge to be used for, to prevent the margin to seam of clothing from fluffing, overedger also can apply to sew up T-shirt, gym suit, underwear, the face such as knitting
Material.For improving the work efficiency of overedger, in overedger, it is equipped with differential material feeding device, utilizes differential cloth-feeding tooth and active work feed
Tooth movement velocity difference realizes differential feed..
Chinese patent 200610117968.8 discloses the differential material feeding device of a kind of sewing machine, and it includes being located at sewing machine
Feeding tooth and differential tooth it is respectively equipped with, on sewing machine on feeding retainer on frame and differential retainer, feeding retainer and differential retainer
Being additionally provided with power spindle and power transmission shaft, power spindle drives drive axis, power transmission shaft and above-mentioned feeding by drive mechanism
Being provided with the feed mechanism when drive axis can make feeding retainer translate in frame between retainer, described power transmission shaft is with above-mentioned
Differential retainer between be provided with the differential attachment when drive axis can make differential retainer translate in frame.Difference in this patent
Motivation structure realizes the regulation of differential ratio by how inter-agency slip, and the processing technique forming each mechanism slided requires height,
Difficulty of processing is big, and production cost is high.
Accordingly, it would be desirable to a kind of cost of parts is low and coordinates the differential cloth-feeding adjustment structure stable, differential degree of regulation is high.
Summary of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of differential cloth-feeding adjustment structure and
Sewing machine, is used for solving in prior art each cost of parts problem high, unmanageable in differential cloth-feeding adjustment structure.
For achieving the above object and other relevant purposes, the present invention provides the differential cloth-feeding regulation knot of a kind of use in sewing machine
Structure, comprising:
Differential than regulation part, including manual adjusting part, differential in flakes with work feed connecting rod, manual adjusting part and differential
In flakes transmission be connected, one end of work feed connecting rod with described differential in flakes and differential connecting rod three be hinged formed differential hinged
Point, described manual adjusting part is by the described differential position changing differential pin joint in flakes, and described differential connecting rod is with differential
Retainer is connected, and differential retainer is connected with differential cloth-feeding tooth；
Drive part, including the feeding connecting rod on the main shaft being located at sewing machine, cloth pushing shaft and cloth feeding crank and differential pendulum
Bar, cloth feeding crank and differential fork are fixed on cloth pushing shaft with predetermined angle intersection, and feeding connecting rod is connected with cloth feeding crank,
Differential fork is hinged with the other end of described work feed connecting rod.
Preferably, the size of described predetermined angle and the active feed dog in described differential cloth-feeding tooth and described sewing machine
Initial phase difference mates.
Preferably, described cloth feeding crank and described differential fork are single piece.
Preferably, described manual adjusting part includes manual adjustment, rotating differential regulation axle and described differential company
Sheet, described manual adjustment includes the adjusting rod that can stir and the controllable register being arranged in the casing of described sewing machine, regulation
There is on baffle plate the regulating tank with regulation scale, adjusting rod has the short axle being located in regulating tank that slides, and by fixed
Position part positions described adjusting rod, and described adjusting rod is connected with described differential regulation axle, and differential regulation axle is provided with differential crank, poor
Dynamic crank differential is connected in flakes with described.
Preferably, described manual adjusting part include differential crank, described differential in flakes, manual adjusting knob, adjustment pin and
It is fixedly linked with the regulating part of chute, described regulating part and the regulation axle being connected with described manual adjusting knob, described adjustment pin
In being located in described chute and sliding in chute with the rotation of regulating part, described chute is by the circular arc phase of multistage different inner diameters
The C-shaped even constituted, the center of circle of all circular arcs is the center of rotation of described regulating part, every section of corresponding differential ratio of circular arc；Described
One end rotational positioning of differential crank, the other end of differential crank differential is the most all hinged in described adjustment pin with described.
Preferably, adjacent described circular arc is connected by small arc-shaped transition.
Preferably, described manual adjusting part include differential crank, described differential in flakes, manual adjusting knob, adjustment pin and
It is fixedly linked with the regulating part of chute, described regulating part and the regulation axle being connected with described manual adjusting knob, described adjustment pin
Be located in described chute and slide in chute with the rotation of regulating part, the two ends of chute corresponding differential than respectively 1:2 with
1:0.7, described chute is to be compared from 1:2 gradual change to the circular arc of 1:0.7 matching by differential, and the center of circle deviation of chute is described
The center of rotation of regulating part；One end rotational positioning of described differential crank, the other end of differential crank is differential the most equal with described
It is hinged in described adjustment pin.
Preferably, described manual adjusting part also includes the locked component locking described manual adjusting knob, described locking group
Part includes radially being located on described manual adjusting knob and liftable button, and is placed in the annular in described manual adjusting knob
Locking piece, the inner circumferential of locking piece is provided with a circle locking teeth, the end of described button be provided with coordinate with locking teeth locking
Projection, pushes button and can unlock protruding with locking teeth.
The present invention also provides for a kind of sewing machine, and described sewing machine uses the differential cloth-feeding regulation of use in sewing machine as above
Structure realizes the regulation of differential ratio.
As it has been described above, the differential cloth-feeding adjustment structure of the present invention and sewing machine, have the advantages that employing work feed
Connecting rod with differential in flakes and differential connecting rod three be hinged formation differential pin joint, manually adjusting part changes differential
The position of pin joint, changes differential ratio with this, and the present invention uses hinged linked manner to substitute existing sliding type, and it is poor to be formed
Each part of dynamic pin joint is easily processed, and installs simple, and ensure that the accurate regulation of differential ratio.
Accompanying drawing explanation
Fig. 1 is shown as the differential cloth-feeding adjustment structure schematic diagram of the present invention.
Fig. 2 is shown as the exploded perspective view of the differential cloth-feeding adjustment structure of the present invention.
Fig. 3 is shown as the fundamental diagram of the differential cloth-feeding adjustment structure of the present invention.
Fig. 4 is shown as an enforcement illustration of the manual adjusting part of the present invention.
Fig. 5 is shown as another enforcement illustration of the manual adjusting part of the present invention.
Element numbers explanation
1 main shaft
2 differential retainers
3 cloth pushing shafts
4 differential connecting rods
5 work feed connecting rods
6 differential in flakes
7 differential forks
8 cloth feeding cranks
9 differential cranks
10 feeding connecting rods
11 differential regulation axles
12 adjusting rods
13 differential cloth-feeding teeth
14 work feeds are eccentric
15 knobs
16 controllable registers
17 keepers
18 locating shafts
19 adjustment pins
20 regulating parts
21 regulation axles
22 locking pieces
221 locking teeths
201 chutes
23 locking plates
24 manual adjusting knobs
25 buttons
101 jointed shafts
102 short axles
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention being described below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
Refer to Fig. 1 to Fig. 5.It should be clear that structure depicted in this specification institute accompanying drawing, ratio, size etc., the most only in order to
Coordinating the content disclosed in description, understand for those skilled in the art and read, being not limited to the present invention can be real
The qualifications executed, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the tune of size
Whole, under not affecting effect that the present invention can be generated by and the purpose that can reach, all should still fall in disclosed skill
In the range of art content can contain.Meanwhile, in this specification cited as " on ", D score, "left", "right", " middle " and
The term of " one " etc., is merely convenient to understanding of narration, and is not used to limit the enforceable scope of the present invention, its relativeness
It is altered or modified, is changing under technology contents without essence, when being also considered as the enforceable category of the present invention.
As shown in Figures 1 and 2, the present invention provides the differential cloth-feeding adjustment structure of a kind of use in sewing machine, comprising:
Differential than regulation part, including manual adjusting part, differential in flakes 6 and work feed connecting rod 5, manual adjusting part and difference
Dynamic 6 transmissions in flakes are connected, one end of work feed connecting rod 5 with differential in flakes 6 and differential connecting rod 4 three be hinged formed differential hinged
Point, work feed connecting rod 5 in the present embodiment, differential in flakes 6 and differential connecting rod 4 be jointly hinged on jointed shaft 101, manually regulation group
Part is by described differential 6 position changing differential pin joint in flakes, and described differential connecting rod 4 is connected with differential retainer 2, differential tooth
Frame 2 is connected with differential cloth-feeding tooth 13；
Drive part, including cloth pushing shaft 3, cloth feeding crank 8 and differential fork 7, and is located at sending on the main shaft 1 of sewing machine
Material connecting rod 10, both cloth feeding crank 8 and differential fork 7 with predetermined angle intersect be fixed on cloth pushing shaft 3, feeding connecting rod 10 with give
Cloth crank 8 is connected, and differential fork 7 is hinged on short axle 102 with the other end of work feed connecting rod 5.
The present invention use work feed connecting rod 5 with differential in flakes 6 and differential connecting rod 4 three be hinged the differential pin joint of formation,
Manually adjusting part changes the position of differential pin joint, changes differential ratio with this, and the present invention uses hinged linkage side
Formula substitutes existing sliding type, and each part forming differential pin joint is easily processed, and installs simple, and ensure that differential ratio
Precisely regulation.
Above-mentioned cloth feeding crank 8 and differential fork 7 are arranged with predetermined angle, the size of this predetermined angle and differential cloth-feeding tooth 3
Mate with the initial phase difference of the active feed dog in sewing machine, poor to guarantee that actively feed dog and differential cloth-feeding transposition of teeth complete
Dynamic work feed.Cloth feeding crank 8 and differential fork 7 in the present embodiment are single piece, guarantee cloth feeding crank 8 and differential fork during production
Angle between 7, is so easily installed；Can also be two independent parts, so it needs to be determined that two installing when
Angle between person.
As a specific embodiment of above-mentioned manual adjusting part, as shown in Fig. 1 and Fig. 4, above-mentioned manual adjusting part bag
Including manual adjustment, rotating differential regulation axle 11 and above-mentioned differential in flakes 6, manual adjustment includes the adjusting rod that can stir
12 and the controllable register 16 that is arranged in the casing of sewing machine, controllable register 16 has the regulating tank with regulation scale, adjusts
There is on pole 12 the short axle being located in regulating tank that slides, and by location, keeper 15 location adjusting rod, differential regulation axle
11 are provided with differential crank 9, and differential crank 9 differential 6 is connected in flakes with described.The present embodiment utilizes and manually pulls above-mentioned tune up and down
Pole 12, utilizes adjusting rod 12 to drive differential regulation axle 11 to rotate, and then makes differential crank 9 swing, and 6 is driven in flakes by differential
Above-mentioned differential pin joint position change, changes differential ratio with this, after being positioned by adjusting rod 12 by keeper 15, above-mentioned differential
Pin joint position locks.The trimming bolt 17 finely tuned by adjusting rod about 12 it is additionally provided with on the controllable register 16 of the present embodiment, logical
Cross and turn trimming bolt 17 and can change the height of adjusting rod.
Utilize the manual adjusting part of the present embodiment, the concrete work of the differential cloth-feeding adjustment structure of the use in sewing machine of the present invention
Being: as shown in Figure 3 that in figure, Q represents above-mentioned differential regulation axle 11 as principle, QF represents above-mentioned differential crank 9, and FR represents above-mentioned difference
Dynamic in flakes 6, RE ' above-mentioned work feed connecting rod 5, RG is represented ' represent differential connecting rod 4, R represents above-mentioned differential pin joint, and D represents above-mentioned sending
Cloth beam 3, E ' D represents differential fork 7, and DC represents cloth feeding crank 8, and BC represents feeding connecting rod 10, and AB represents feeding offset, A generation
The main shaft 1 of table sewing machine, I represents and makes what differential retainer moved up and down to lift tooth slide block, and M ' represents differential tooth 13, and K H ' represents differential
Retainer 2.Shown in Fig. 1, the main shaft 1 of sewing machine drives feeding connecting rod 10 to swing by work feed eccentric 14, and feeding connecting rod 10 carries
Dynamic cloth feeding crank 8 swings, and cloth feeding crank 8 drives cloth pushing shaft 3 to rotate, and cloth pushing shaft 3 drives differential fork 7 to swing, and differential fork 7 carries
Dynamic work feed connecting rod 5 swings, and work feed connecting rod 5 drives differential connecting rod 4 to seesaw, and moves before and after i.e. realizing differential retainer 2.Differential
Than Principles of Regulation: drive differential regulation axle 11 to rotate by adjusting rod 12, differential regulation axle 11 drives differential crank 9 to swing, poor
Dynamic crank 9 drives and differential 6 moves up and down in flakes, differential 6 drives differential connecting rods 4, work feed connecting rod 5, differential 6 threes in flakes in flakes
Sharing the change in location of differential pin joint R, differential pin joint change in location drives work feed connecting rod 5 to become with the angle of differential fork 7
Change, thus regulate differential ratio.
As the second embodiment of above-mentioned manual adjusting part, as shown in Figure 5, the manual adjusting part bag in the present embodiment
Include differential crank 9, manual adjusting knob 24, adjustment pin 19 and the regulating part 20 with chute 201, described regulating part 20 and with described
The regulation axle 21 that manual adjusting knob 24 is connected is fixedly linked, in described adjustment pin 19 is located in described chute 201 and with regulating part
The rotation of 20 is slided in chute 201, and described chute 201 is the C-shaped constituted that is connected by the circular arc of multistage different inner diameters, all circles
The center of circle of arc is the center of rotation of regulating part 20, every section of corresponding differential ratio of circular arc；One end rotational positioning of differential crank 9,
The differential crank of the present embodiment is rotatably installed on locating shaft 18, the other end of differential crank 9 with differential in flakes 6 be all hinged on described
In adjustment pin 19.The present embodiment utilizes the corresponding different differential ratio of different arc sections to realize the regulation of differential ratio, this enforcement
In example, chute 201 is made up of five sections of circular arcs, and adjacent circular arc is connected by small arc-shaped transition, it is ensured that the end of adjustment pin 19 can be
Different circular arcs in chute 201 are intersegmental to be moved freely, every section of corresponding differential ratio of circular arc, be respectively as follows: 1:0.7,1:1,1:
1.4、1:1.7、1:2.The active force that in the present embodiment, adjustment pin 19 is intersegmental with the circular arc contacted in chute 201 is designated as the first work
Firmly, the active force between adjustment pin 19 and differential crank 9 is the second active force, adjustment pin 19 and differential active force between 6 in flakes
Be the 3rd active force, then the second active force and the 3rd active force make a concerted effort with the first active force to make a concerted effort be zero, three active forces support
Disappear and make adjustment pin self-locking in every section of circular arc, will not produce and self move, facilitate the regulation of differential ratio.
For preventing manual adjusting knob 24 from being misrouted dynamic outside sewing machine, the present embodiment also include for lock above-mentioned manually
The locked component of adjusting knob 24, locked component includes radially being located on manual adjusting knob 24 and liftable button 25, and
The locking piece 22 of the annular being placed in described manual adjusting knob 24, the inner circumferential of locking piece 22 is provided with a circle locking teeth 221, presses
The end of key 25 is provided with the projection coordinating locking with locking teeth 221, and the projection of the present embodiment is placed on locking plate 23, pushes button
Projection can be unlocked by 25 with locking teeth 221, rotatable manual adjusting knob 24, it is achieved differential than regulation.
The differential of the present embodiment than Principles of Regulation is: presses regulating key 25 and makes locking plate 23 disengaged from locking member 22, rotates
Manual adjusting knob 24 drives regulating part 20 together fixed thereto to rotate, and regulating part 20 rotarily drives the adjustment pin in chute
19 slide, and change the position of adjustment pin 19, and the change in location of adjustment pin 19 drives differential 6 swing in flakes, differential 6 swings in flakes to change
Become the position of above-mentioned differential pin joint, thus realize the regulation to differential ratio.
As the 3rd embodiment of above-mentioned manual adjusting part, the present embodiment and the second embodiment approximation, difference exists
In: the shape of the chute on above-mentioned regulating part, in the present embodiment, corresponding differential ratio respectively 1:2 and 1:0.7 in the two ends of chute, sliding
Groove be by differential than from 1:2 gradual change to the circular arc of 1:0.7 matching, and in the rotation of the center of circle deviation regulating part of chute
The heart.In the present embodiment, chute always hangs down with contact surface with the direction of the contact surface elastic force (only finger pressure or holding power) of adjustment pin
Directly, the face that i.e. adjustment pin 19 contacts with chute 201 is all arc surface, so the direction of chute 201 elastic force is by adjustment pin 19
Pointing to the center of circle of adjustment pin 19 and chute contact-segment circular arc, adjustment pin 19 is designated as the first work with the contact surface active force of chute 201
Firmly, the active force between adjustment pin 19 and differential crank 9 is the second active force, adjustment pin 19 and differential active force between 6 in flakes
Be the 3rd active force, then the second active force and the 3rd active force make a concerted effort with the first active force to make a concerted effort be zero, three active forces support
Disappear and make adjustment pin self-locking in every section of circular arc, will not produce and self move, facilitate the regulation of differential ratio.
Manual adjusting part in the present embodiment also includes the locked component locking manual adjusting knob, and locked component includes footpath
To being located on manual adjusting knob and liftable button, and be placed in the locking piece of annular in manual adjusting knob, locking
The inner circumferential of part is provided with a circle locking teeth, and the end of button is provided with the projection coordinating locking with locking teeth, and pushing button can be by
Protruding and locking teeth unlocks.
The present invention also provides for a kind of sewing machine, and described sewing machine uses the differential cloth-feeding regulation of use in sewing machine as above
Structure realizes the regulation of differential ratio.
In sum, differential cloth-feeding adjustment structure of the present invention and sewing machine, its use feeding connecting rod with differential in flakes and
Differential connecting rod three is hinged and forms differential pin joint, and manually adjusting part changes the position of differential pin joint, with this
Changing differential ratio, the present invention uses hinged linked manner to substitute existing sliding type, forms each part of differential pin joint
Easily processing, installs simple, and ensure that the accurate regulation of differential ratio.So, the present invention effectively overcomes of the prior art
Various shortcoming and have high industrial utilization.
The principle of above-described embodiment only illustrative present invention and effect thereof, not for limiting the present invention.Any ripe
Above-described embodiment all can be modified under the spirit and the scope of the present invention or change by the personage knowing this technology.Cause
This, have usually intellectual such as complete with institute under technological thought without departing from disclosed spirit in art
All equivalences become are modified or change, and must be contained by the claim of the present invention.
Claims (9)
1. the differential cloth-feeding adjustment structure of a use in sewing machine, it is characterised in that including:
Differential than regulation part, including manual adjusting part, differential (6) in flakes and work feed connecting rod (5), manual adjusting part and difference
Dynamic (6) transmission in flakes is connected, and one end of work feed connecting rod (5) is hinged with described differential (6) in flakes and differential connecting rod (4) three
Forming differential pin joint, described manual adjusting part changes the position of differential pin joint by described differential (6) in flakes, described
Differential connecting rod (4) is connected with differential retainer (2), and differential retainer (2) is connected with differential cloth-feeding tooth (13)；
Drive part, including the feeding connecting rod (10) on the main shaft (1) being located at sewing machine, cloth pushing shaft (3) and cloth feeding crank (8)
Both are fixed on cloth pushing shaft (3) with predetermined angle intersection with differential fork (7), cloth feeding crank (8) and differential fork (7), send
Material connecting rod (10) is connected with cloth feeding crank (8), and differential fork (7) is hinged with the other end of described work feed connecting rod (5).
The differential cloth-feeding adjustment structure of use in sewing machine the most according to claim 1, it is characterised in that: described predetermined angle
Size is mated with the initial phase difference of the active feed dog in described differential cloth-feeding tooth (13) and described sewing machine.
The differential cloth-feeding adjustment structure of use in sewing machine the most according to claim 1, it is characterised in that: described cloth feeding crank
And described differential fork (7) is single piece (8).
The differential cloth-feeding adjustment structure of use in sewing machine the most according to claim 1, it is characterised in that: described manual regulation group
Part includes manual adjustment, rotating differential regulation axle (11) and described differential (6) in flakes, and described manual adjustment includes can
The adjusting rod (12) stirred and the controllable register (16) being arranged in the casing of described sewing machine, controllable register has band on (16)
There is the regulating tank of regulation scale, adjusting rod (12) has the short axle being located in regulating tank that slides, and by keeper (15)
Positioning described adjusting rod (12), described adjusting rod (12) is connected with described differential regulation axle (11), differential regulation axle (11) sets
Differential crank (9), differential crank (9) is had to be connected with described differential (6) in flakes.
The differential cloth-feeding adjustment structure of use in sewing machine the most according to claim 1, it is characterised in that: described manual regulation group
Part includes differential crank (9), described differential (6) in flakes, manual adjusting knob (24), adjustment pin (19) and with chute (201)
Regulating part (20), described regulating part (20) and the regulation axle (21) being connected with described manual adjusting knob (24) are fixedly linked, described
In adjustment pin (19) is located in described chute (201) and slide in chute (201) with the rotation of regulating part (20), described chute
(201) for the C-shaped constituted that is connected by the circular arc of multistage different inner diameters, the center of circle of all circular arcs is the rotation of described regulating part (20)
Center, every section of corresponding differential ratio of circular arc；One end rotational positioning of described differential crank (9), the other end of differential crank (9)
All it is hinged in described adjustment pin (19) with described differential (6) in flakes.
The differential cloth-feeding adjustment structure of use in sewing machine the most according to claim 5, it is characterised in that: adjacent described circular arc leads to
Too small arc transition is connected.
The differential cloth-feeding adjustment structure of use in sewing machine the most according to claim 1, it is characterised in that: described manual regulation group
Part includes differential crank (9), described differential (6) in flakes, manual adjusting knob (24), adjustment pin (19) and with chute (201)
Regulating part (20), described regulating part (20) and the regulation axle (21) being connected with described manual adjusting knob (24) are fixedly linked, described
In adjustment pin (19) is located in described chute and slide in chute with the rotation of regulating part (20), the two ends pair of chute (201)
Answering differential ratio respectively 1:2 and 1:0.7, described chute (201) is for being compared from 1:2 gradual change to the circle of 1:0.7 matching by differential
Arc, and the center of rotation in the center of circle described regulating part of deviation (20) of chute (201)；One end of described differential crank (9) rotates
Location, the other end of differential crank (9) and described differential (6) in flakes are all hinged in described adjustment pin.
8. according to the differential cloth-feeding adjustment structure of the use in sewing machine described in claim 5 or 7, it is characterised in that: described manual tune
Joint assembly also includes the locked component locking described manual adjusting knob (24), and described locked component includes radially being located in described hands
Move on adjusting knob (24) and liftable button (25), and the locking piece of the annular being placed in described manual adjusting knob (24)
(22), the inner circumferential of locking piece (22) is provided with a circle locking teeth (221), and the end of described button (25) is provided with and locking teeth
(221) coordinating the projection of locking, push button (25) can unlock protruding with locking teeth (221).
9. a sewing machine, it is characterised in that: described sewing machine uses the use in sewing machine as described in any one of claim 1 to 7
Differential cloth-feeding adjustment structure realize the regulation of differential ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610629468.6A CN106012321B (en) | 2016-08-03 | 2016-08-03 | Differential cloth-feeding adjustment structure and sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610629468.6A CN106012321B (en) | 2016-08-03 | 2016-08-03 | Differential cloth-feeding adjustment structure and sewing machine |
Publications (2)
| Publication Number | Publication Date |
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| CN106012321A true CN106012321A (en) | 2016-10-12 |
| CN106012321B CN106012321B (en) | 2019-03-01 |
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|---|---|---|---|
| CN201610629468.6A Active CN106012321B (en) | 2016-08-03 | 2016-08-03 | Differential cloth-feeding adjustment structure and sewing machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988031A (en) * | 2017-06-02 | 2017-07-28 | 杰克缝纫机股份有限公司 | A kind of sewing machine |
| CN107904801A (en) * | 2017-12-05 | 2018-04-13 | 杰克缝纫机股份有限公司 | A kind of differential adjustment frame and differential attachment |
| CN107916500A (en) * | 2017-12-07 | 2018-04-17 | 宁波三合鑫自动化有限公司 | Roll up S type bottom special mechanisms |
| CN108385288A (en) * | 2018-05-21 | 2018-08-10 | 杰克缝纫机股份有限公司 | A kind of sewing machine and its cloth feeding mechanism |
| CN112411025A (en) * | 2019-08-23 | 2021-02-26 | 杰克缝纫机股份有限公司 | Driving structure of upper feeding front shaft and rear shaft of sewing machine |
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| CN107904801B (en) * | 2017-12-05 | 2020-08-04 | 杰克缝纫机股份有限公司 | Differential adjusting frame and differential mechanism |
| CN107916500A (en) * | 2017-12-07 | 2018-04-17 | 宁波三合鑫自动化有限公司 | Roll up S type bottom special mechanisms |
| CN107916500B (en) * | 2017-12-07 | 2023-03-14 | 宁波三合鑫自动化有限公司 | Special mechanism for rolling S-shaped lower hem |
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| CN108385288B (en) * | 2018-05-21 | 2020-11-27 | 杰克缝纫机股份有限公司 | Sewing machine and cloth feeding mechanism thereof |
| CN112411025A (en) * | 2019-08-23 | 2021-02-26 | 杰克缝纫机股份有限公司 | Driving structure of upper feeding front shaft and rear shaft of sewing machine |
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