CN108442043A - The fabric transfer device of sewing machine - Google Patents
The fabric transfer device of sewing machine Download PDFInfo
- Publication number
- CN108442043A CN108442043A CN201711475221.4A CN201711475221A CN108442043A CN 108442043 A CN108442043 A CN 108442043A CN 201711475221 A CN201711475221 A CN 201711475221A CN 108442043 A CN108442043 A CN 108442043A
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- fabric
- feeding
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- band
- sewing machine
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- 239000004744 fabric Substances 0.000 title claims abstract description 214
- 238000009958 sewing Methods 0.000 title claims abstract description 175
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 230000001360 synchronised effect Effects 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 27
- 238000004804 winding Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- 210000002683 foot Anatomy 0.000 description 39
- 230000007423 decrease Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000001595 contractor effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000000699 topical effect Effects 0.000 description 1
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
- D05B27/06—Work-feeding means with feed dogs having horizontal and vertical movements arranged above and below the workpieces
Abstract
The present invention provides a kind of fabric transfer device of sewing machine, have feeding feeding tooth and presser feet under fabric, left and right sides exterior arrangement in the direction substantially orthogonal with sewing direction of travel of presser feet has feeding band on pair of right and left fabric, it acts on fabric upper surface, the transfer fabric is forced along sewing direction of travel and in the length range contacted with needle plate in presser feet lower surface, is also equipped with：Make on above-mentioned fabric the gearing synchronous with feeding feeding tooth under fabric of feeding band and the belt drive mechanisms of intermittent drive and the band that feeding band is moved up and down with the driving lifting linkage of presser feet on fabric is made to move up and down driving mechanism, only implement the low cost improvement for adding this degree of attachment to having sewing machine, using part or comprehensive fabric for coating or being pasted with rubber etc. as in the case of sewing object, it can reliably and successfully be transferred if even if the sewing part of fabric is by the transfer resistance generated by friction and obtain completing preferable sewed product.
Description
Technical field
The present invention relates to a kind of for example using two pointer type horizontal cyclinder shaped double-thread overlock sewing machine as the shifting of the fabric of the sewing machine of representative
Device is sent, it is suitable for being processed into cricoid round shape object plane to first suturing front and rear body cloth as T-shirt or sport shirt etc.
The end of material carries out situations such as the anti-end stitching sewing burst at the seams.
Background technology
Such as the two pointer type double-thread overlock sewing machine for being used for the end stitching sewing of round shape object plane material has：Needle plate,
Guide the sewing part (end edge portion is made to turn back to the back side of fabric and overlap coincidence fabric components) of round shape object plane material along
Defined sewing direction of travel feeding；Multiple (two) eedles configure side by side on the direction orthogonal with sewing direction of travel,
Can by by be formed in above-mentioned needle plate fall needle portion in a manner of move up and down；Feeding feeding tooth, configures upper under fabric
The lower part for stating needle plate acts on the lower surface for being placed on the fabric on needle plate, is intermittently forced along sewing direction of travel
Transfer the fabric；Presser feet, it is opposite with feeding tooth with the lower feeding, it is configured in a manner of it can drive lifting in the upper of above-mentioned needle plate
Side；And looper, can between a side of the parallel direction of above-mentioned eedle and the other side along with sewing traveling side
Moving back and forth is carried out to substantially orthogonal direction.Moreover, on one side as the action of feeding feeding tooth under above-mentioned fabric is providing
Sewing direction of travel on along the upper surface of needle plate intermittently feed fabric, on one side using two moving up and down for eedle and
Under needle plate formed eedle wire loop, and by looper into out capture these eedle wire loops, the looper kept by looper
Line carries out around ring the eedle wire loop of the crawl, thus in the complete cycle shape of the sewing part of round shape object plane material (overlapping fabric components)
At the stitching of double-locked stitch, to carry out end stitching sewing.
The fabric transfer device of two pointer type double-thread overlock sewing machine with structure as described above is only to feed to use under fabric
Feeding tooth configures in the lower part of needle plate, acts on fabric lower surface, intermittently forces transfer should along sewing direction of travel
Fabric, when the lower feeding force transfer with feeding tooth, the upper surface of fabric and the presser feet lower surface for being located at lifting position
Sliding contact and transferred.
Therefore, be in sewing object fabric least for decorated, designed or reinforced in the sewing part etc. and locally
Or in the case of comprehensively coating or being pasted with the fabric of the larger material piece of the friction coefficient such as rubber, when above-mentioned lower feeding
When force transfer with feeding tooth, the transfer resistance generated by the friction between fabric upper surface and presser feet lower surface becomes
It is very big, fabric can not be fed by defined spacing, generate extra fold in sewing part or seam can not be fed as the crow flies
System partly and when fabric is fed generates a problem that sewing part is winding, and result can not avoid that sewed product can be caused
Appearance and quality decline the bad situation of completion.
In order to reduce when lower feeding as described above force transfer with feeding tooth because under fabric upper surface and presser feet
Friction between surface and the transfer resistance generated, it is reliable and swimmingly carry out fabric transfer, a kind of fabric was proposed in the past to be moved
Send device, above needle plate with lower feeding with the opposite upper feeding of position setting roller or endless belt etc. of feeding tooth with rotary body come
Presser feet is substituted, and rotary body rotation is driven by stepping motor etc., by feeding rotary body on this and lower feeding with sending
Expect that fabric is clamped in tooth, force to transfer the fabric along sewing direction of travel (referring for example to patent document 1).
In addition, also proposed a kind of fabric transfer device in the past, lower feeding is set and substitutes sewing machine bottom with endless belt
Lower feeding feeding tooth inside seat, and the position setting opposite in the top of needle plate and above-mentioned lower feeding endless belt acts on
Upper feeding endless belt in fabric upper surface, can respectively drive these upper and lower endless belts, it is clear that can eliminate due to friction
The transfer resistance of generation, it is reliable and straight line feeding successfully is carried out to sewing part, and can also carry out curve feeding (such as
With reference to patent document 2).
Existing technical literature
Patent document
Patent document 1：Japanese Patent Publication 57-58194 bulletins
Patent document 2：Japanese Patent Publication 3-15918 bulletins
Invention content
In the fabric transfer device of the existing sewing machine with structure shown in above patent document 1 and 2, due to that can incite somebody to action
Fabric is clamped in lower feeding feeding tooth and upper feeding and carries out pressure transfer between rotary body or up and down between endless belt, so
By the portion of sewing unit branch office of fabric or comprehensively coat or be pasted with the larger material piece of the friction coefficient such as rubber fabric make
In the case of for sewing object, also face can be fed reliably and successfully in the state of not because of the transfer resistance of friction generation
The sewing part of material can obtain completing appearance and quality preferably completes sewed product to not generate the unfavorable condition of feeding.
However, above-mentioned existing fabric transfer device is for the essential structure for passing by the sewing machine in the presence of (existing), i.e.
The existing sewing machine for having needle plate, eedle, fabric presser feet and lower feeding feeding tooth, with the lower feeding opposite position of feeding tooth
The upper feeding of configuration roller or endless belt etc. is set with rotary body to substitute presser feet, or feeding is annular under setting in sewing machine base
Bring the lower feeding feeding tooth of replacement, and the feeding annular in the opposite position setting in the top of the lower feeding endless belt
Band, fabric transfer device more than existing like this, it is necessary to the periphery including the internal mechanism of sewing machine base
Partial construction is also substantially transformed.In this way, still to design, make the sewing machine of new architecture, for makers-up there is also
Following problem：It does not simply fail to utilize existing sewing machine, but also must buy again and setting up cost higher new architecture
Sewing machine, financial burden increase.
The present invention is to complete in view of the above problems, its purpose is to provide a kind of fabric transfer device of sewing machine,
It is not transformed substantially having sewing machine, and the low cost for only implementing this degree of additional attachment to having sewing machine improves,
Even if using locally or comprehensively coating or being pasted with the fabric of the larger material piece of the friction coefficient such as rubber as sewing object
In the case of, it also can reliably and successfully transfer the sewing part of fabric and obtain completing preferable sewed product.
To achieve the goals above, the present invention relates to a kind of fabric transfer device of sewing machine, have：Needle plate is used
In placement fabric, and guide the feeding that direction of travel is sewed to regulation of the fabric；Eedle keeps eedle line, can be with
Be formed in above-mentioned needle plate fall needle portion by way of move up and down；Feeding feeding tooth, configures in above-mentioned needle plate under fabric
Lower part, act on the fabric lower surface being placed on the needle plate, intermittently along above-mentioned sewing direction of travel force move
Give the fabric；And presser feet, opposite with above-mentioned feeding tooth, configuration can drive lifting extremely by face in the top of above-mentioned needle plate
Material presses on the down position of above-mentioned needle plate and releases the lifting position of pressing, the feature of the fabric transfer device of above-mentioned sewing machine
It is：Left and right sides exterior arrangement in the direction substantially orthogonal with sewing direction of travel of above-mentioned presser feet has pair of right and left fabric
Upper feeding band, on a pair of fabric feeding the fabric upper surface being placed on above-mentioned needle plate is acted on band, in above-mentioned pressure
Underfooting surface forces to transfer the fabric along sewing direction of travel and in the length range contacted with above-mentioned needle plate, is also equipped with：
Upper feeding tape drive mechanism makes the action of feeding band and feeding feeding tooth under above-mentioned fabric on the pair of right and left fabric
It synchronizes and interlocks and intermittently carry out drive actions；And band moves up and down driving mechanism, makes on above-mentioned pair of right and left fabric
Feeding band is moved up and down with the driving lifting linkage of above-mentioned presser feet in a manner of contacting or detaching with fabric upper surface.
According to the fabric transfer device of sewing machine of the present invention characterized above, make lower feeding feeding
Tooth acts on the lower surface of the sewing part for the fabric being placed on needle plate, and feeding band on pair of right and left fabric is made to make
Upper surface for sewing part can make fabric driving these feeding teeth and conveyer belt in a manner of synchronous interlock
Sewing part with the sliding contact of presser feet lower surface while carry out pressure transfer.Therefore, will portion of sewing unit branch office or comprehensively
In the case of the fabric conduct sewing object for coating or being pasted with the larger material piece of the friction coefficient such as rubber, even if with fabric
Sewing part and presser feet lower surface sliding contact and by frictional resistance, can not also cause feeding to stagnate etc. and it is reliable and
It is successfully transferred, so as to not generate the unfavorable condition of feeding, obtains appearance and quality preferably completes sewed product.
Moreover, not being transformed substantially having sewing machine, keep having the essential structure that sewing machine has as former state, only
Implement will on pair of right and left fabric feeding with, feeding tape drive mechanism and band move up and down each structure such as driving mechanism on this
The simple and inexpensive improvement of this degree is added as attachment, it will be able to which providing one kind will produced because rubbing as described above
The raw transfer increased fabric of resistance as sewing object in the case of play reliable and smoothly fabric transfer function sewing
The fabric transfer device of machine.
In the fabric transfer device of sewing machine of the present invention, the feeding band preferably on above-mentioned pair of right and left fabric
Between centre position and the position at rear portion is provided with median surface than the sewing direction of travel downstream end of above-mentioned presser feet lower surface
Feeding band on material, on the intermediate fabric feeding act on upper table among the sewing unit by the fabric after above-mentioned presser feet with band
Face further forces to transfer the fabric towards sewing direction of travel downstream.
In this case, feeding acts on upper surface among the sewing unit of fabric with band on intermediate fabric, can be to hold
Continue the mode sent out to sewing direction of travel downstream to force to transfer among the sewing unit, though the fabric by it is adjoint under presser feet
The sliding contact on surface and the frictional resistance that generates are also by feeding feeding tooth under feeding band on pair of right and left fabric and fabric
Successfully it is transferred to the sewing direction of travel downstream end of presser feet lower surface.Even the larger fabric of frictional resistance as a result,
Can be more reliable and successfully the sewing part be transferred along prescribed direction.
In particular, further preferably feeding band feeds front end and above-mentioned pair of right and left face with it on above-mentioned intermediate fabric
Overlapped that mode is arranged for part on sewing direction of travel for the feeding terminal part of feeding band on material, in this case, can
Make by feeding under feeding band on pair of right and left fabric and fabric intermittently to be forced the sewing part of transfer without stopping with feeding tooth
The feeding front end of feeding band on intermediate fabric is swimmingly migrated to stagnantly, further can reliably avoid feeding bad feelings
The generation of condition.
In addition, on intermediate fabric in the fabric transfer device of the sewing machine of feeding band, preferably above-mentioned median surface
On material on feeding band and above-mentioned pair of right and left fabric feeding with band by above-mentioned band moves up and down driving mechanism integrally on
Lower movement.
It in this case, can when fabric is placed on needle plate or removes the fabric after sewing from needle plate
Moving up and down driving mechanism using single band makes on pair of right and left fabric on feeding band and intermediate fabric feeding with integrated
Ground moves up and down, and is capable of the rationalization of simplification and the action of implementation mechanism.
In addition, in the fabric transfer device of sewing machine of the present invention, feeding band driving on preferably above-mentioned fabric
Mechanism includes：The drive shaft of positive and negative reciprocating rotary is linkedly carried out with machine spindle；With the oscillating rod of drive shaft connection；Through
The clutch plate being connect with the oscillating rod by connecting rod；By fix the single direction rotation clutch of the clutch plate intermittently only to
The clutch shaft that one direction is driven to rotate；And it is installed in the volume of feeding band on the clutch shaft, above-mentioned fabric
Around with pulley.
In this case, by by the winding pulley of feeding band on above-mentioned fabric, being mounted on via oscillating rod, even
Bar, clutch plate and single direction rotation clutch and will linkedly carry out positive and negative reciprocating rotary with high-speed rotating machine spindle
The positive and negative reciprocating rotary of drive shaft becomes only on the clutch shaft of a direction intermittent rotary, can make to feed on each fabric and use
Band is synchronous with the feeding action of the feeding tooth of feeding under fabric and is intermittently driven, with for example using stepping motor into
The case where row driving, is compared, can be so that the feeding band more accurate timing synchronous with lower feeding feeding tooth on above-mentioned fabric
Drive control is carried out at high speed.
Also, in the fabric transfer device of sewing machine of the present invention, preferably above-mentioned band moves up and down driving mechanism
Including cylinder, the yoke which makes one keep above-mentioned each upper feeding band is pacified relative to the yoke for being fixed on sewing machine main body
Fill platform lifting.
It in this case, can when fabric is placed on needle plate or removes the fabric after sewing from needle plate
Each upper feeding is set integrally to be moved up and down with band by the action of cylinder, the case where with making each upper feeding be moved up and down respectively with band
It compares, it being capable of more simplified placement for fabric or the operation removed.
Description of the drawings
Fig. 1 is the stereogram for the two pointer type horizontal cyclinder shaped double-thread overlock sewing machine entirety that embodiments of the present invention are related to.
Fig. 2 is the enlarged plan view of the ibid major part of two pointer type horizontal cyclinder shaped double-thread overlock sewing machine.
Fig. 3 is the vertical profile front view along the line A-A of Fig. 2.
Fig. 4 is the longitudinal cross-sectional side view along the line B-B of Fig. 2.
Fig. 5 is the front view of object to be sewn.
Fig. 6 is the enlarged drawing of an exemplary major part of the stitching construction for indicating sewing part.
Reference sign
1 eedle
2 needle plates
4 presser feets
4a presser feets lower surface
Feeding feeding tooth under 5 fabrics
Feeding endless belt on 6L, 6R, 6C fabric
9 yokes
10 clutch shafts
The big pulley of 11L, 11R, 11C tape wrapping
13 yoke erecting beds
15 bands move up and down driving mechanism
Feeding tape drive mechanism on 16
30 drive shafts
31 oscillating rods
32 connecting rods
33 clutch plates
34 single direction rotation clutches
M double-thread overlock sewing machines
W sewing fabrics (round shape object plane material)
W2 sews part
Y sews direction of travel
Specific implementation mode
In the following, being based on attached drawing, embodiments of the present invention will be described.
Fig. 1 is the stereogram for the two pointer type horizontal cyclinder shaped double-thread overlock sewing machine entirety that embodiments of the present invention are related to, Fig. 2
It is the enlarged plan view of the major part of the two pointer type horizontal cyclinder shaped double-thread overlock sewing machine, Fig. 3 and Fig. 4 are the line A-As along Fig. 2
And the longitudinal section view of line B-B.
In above-mentioned two pointer type horizontal cyclinder shaped double-thread overlock sewing machine M, sewing machine horn portion 21 and sewing machine base portion 22 are from seam
It threads the top of owner's body 20 and lower part extends generally parallel with one another setting towards left side.Inside in sewing machine horn portion 21,
It is assembled with machine spindle, makes the eedle of left and right two 1,1 configured side by side on the direction substantially orthogonal with sewing direction of travel Y
The presser feet 4 of needle drive, fabric that (with reference to Fig. 4) pumps drives the presser feet of 4 oscilaltion of presser feet to lift
Driving mechanism, the power transfer mechanism etc. for those each driving mechanisms, but due to those driving mechanisms or power transfer mechanism
It is well known, so illustration omitted and detailed description.
Upper surface part in sewing machine base portion 22 is fixed with needle plate 2, which has form needle downing position to fall needle tray
Portion is assembled in the sewing machine base portion 22 of the lower section of the needle plate 2：With fabric W (the detailed feelings being placed on needle plate 2
Condition will be described later) lower surface contact action, along sewing direction of travel Y intermittently forces transfer fabric W
Fabric under feeding use feeding tooth 5；Keep looper thread, substantially orthogonal with the path that pumps of above-mentioned eedle 1,1
Left and right directions on carry out moving back and forth looper, thread cutter etc..Here, due to looper, thread cutter, looper into move back
Structure or the action etc. for making mechanism are well known, so illustration omitted and detailed description.
In the two pointer type double-thread overlock sewing machine M of above structure, in addition under above-mentioned fabric feeding with feeding tooth 5 with
Outside, it is additionally provided with the upper surface for acting on fabric W and forces to transfer a left side of fabric W towards the downstream of sewing direction of travel Y
Feeding, which is used to feed on endless belt 6L, 6R and intermediate fabric, on right a pair of fabric uses endless belt 6C, feeding ring on these three fabrics
Shape constitutes the fabric transfer device of double-thread overlock sewing machine M with feeding feeding tooth 5 under 6L, 6R, 6C and above-mentioned fabric.
In addition, being also equipped with：It is upper feeding use tape drive mechanism 16, make feeding endless belt 6L, 6R on above three fabric,
6C intermittently carries out drive actions with gearing synchronous with action (circulation action) of feeding tooth 5 is fed under above-mentioned fabric；With
And band moves up and down driving mechanism 15, makes the driving of feeding endless belt 6L, 6R, 6C and above-mentioned presser feet 4 on these three fabrics
It moves up and down to lifting linkage to be switched to the state contacted with the upper surfaces fabric W and be detached upward from the upper surfaces fabric W
State.
As Fig. 2 and Fig. 3 express, on above-mentioned pair of right and left fabric feeding with endless belt 6L, 6R relative to above-mentioned pressure
The configuration of foot 4 is outside the left and right sides in the direction substantially orthogonal with sewing direction of travel Y.It feeds and uses on these pair of right and left fabrics
Endless belt 6L, 6R are set by the following manner：Above-mentioned presser feet 4 lower surface 4a along sewing direction of travel Y and above-mentioned needle plate 2
The upper surface of transfer fabric W, and the sewing traveling side of the lower surface 4a in above-mentioned presser feet 4 are forced in the length range L of contact
To the rear part of the downstreams Y from the upper surface of fabric W gradually to far from diagonally above and backward.
On the other hand, as Fig. 2 and Fig. 4 express, on above-mentioned intermediate fabric feeding with endless belt 6C configure above-mentioned
Centre position of the feeding between endless belt 6L, 6R on pair of right and left fabric.Feeding endless belt 6C's gives on the intermediate fabric
The position for sending front end to lean on rear portion slightly positioned at the downstreams sewing direction of travel Y of the lower surface 4a than above-mentioned presser feet 4, acts on
It is further strong with the state sent out towards sewing direction of travel Y by the sewing unit upper surface of the fabric W after above-mentioned presser feet 4
System transfers fabric W.
In addition, on above-mentioned pair of right and left fabric feeding be wound with endless belt 6L, 6R be located at path pulley 8L, 8R with it is big
Between diameter pulley 11L, 11R, the path pulley 8L, 8R are pivotally supported on the sewing direction of travel Y of pair of right and left supporting station 7L, 7R
Swim end, major diameter pulley 11L, the 11R the downstream upper portion of the sewing direction of travel Y of path pulley 8L, 8R be installed in by
The clutch shaft 10 that yoke 9 supports.On the other hand, feeding is wound with endless belt 6C and is located at path and slides on above-mentioned intermediate fabric
Between taking turns 8C and major diameter pulley 11C, path pulley 8C is pivotally supported in via connecting member 12 and above-mentioned pair of right and left supporting station
In left side supporting station 7L link the sewing direction of travel Y upstream end thereofs of fixed intermediate support platform 7C, major diameter pulley 11C exists
The downstream upper portion of the sewing direction of travel Y of path pulley 8C is installed in above-mentioned clutch shaft 10.
On making above three fabric the driving lifting linkage of feeding endless belt 6L, 6R, 6C and above-mentioned presser feet 4 and face
The state and move up and down drive from the band switched between the state that the upper surfaces fabric W detach upward that the upper surfaces material W contact
Motivation structure 15 includes cylinder, to drive above-mentioned yoke 9 relative to being fixed on sewing machine horn portion 21 (sewing machine main body 20)
Yoke erecting bed 13 via the mode for sliding up and down the lifting of guide rail 14 be erected at above-mentioned yoke 9 and above-mentioned yoke erecting bed 13 it
Between.
In addition, making feeding endless belt 6L, 6R, 6C and feeding feeding tooth 5 under above-mentioned fabric on above three fabric
Synchronous interlock of action and the upper feeding tape drive mechanism 16 for intermittently carrying out drive actions include above-mentioned clutch shaft 10, with
And on the clutch shaft 10 for wind feeding endless belt 6L, 6R, 6C on each fabric major diameter pulley 11L,
11R, 11C, the clutch shaft 10 with the machine spindle in above-mentioned sewing machine horn portion 21 by linkedly carrying out positive and negative reciprocating rotary
The drive shaft 30 turned and the drive shaft 30 link and carry out the oscillating rod 31 of reciprocally swinging, via connecting rod 32 and the oscillating rod 31
The clutch plate 33 of connection and be screwed on the clutch plate 33 one end single direction rotation clutch 34 driving only
It is intermittently rotated to a direction.
In addition, being arranged between above-mentioned pair of right and left supporting station 7L, 7R and protruding portion 9l, 9r for being connect with above-mentioned yoke 9
There are spring 35L, 35R, exerts a force so as to above-mentioned pair of right and left supporting station 7L, 7R and link fixed centre with left side supporting station 7L
Supporting station 7C is swung downwards centered on above-mentioned clutch shaft 10, as a result, feeding ring on the fabric of above-mentioned left side and centre
Shape makes it sew the upstream of direction of travel Y with feeding endless belt 6R on 6L, 6C and right side fabric by above-mentioned spring 35R
Side end is flexibly contacted with the upper surface of fabric W.
Then, to using two pointer type horizontal cyclinder shaped double-thread overlock sewing machine M of the present embodiment formed as described above
The sewing action for carrying out the end stitching sewing of the round shape object plane material W such as T-shirt end illustrates.
In addition here, to as sewing object, using as shown in Figure 5 in order in the sewing part W2 of T-shirt end into luggage
Decorations, design are reinforced etc. and the case where being partially coated with the round shape object plane material W of the larger sheet rubber R of such as friction coefficient is said
It is bright.
First, rise the cylinder for linkedly carrying out contractive action by the position pressed to releasing with the above-mentioned presser feet 4 of driving
15 make feeding on above three fabric be moved upward with endless belt 6L, 6R, 6C.It in this state, will be in round shape object plane material W
End coincidence fabric components (sewing part) W2 for making fabric end edge portion turn back to fabric back side and overlapping be placed on needle plate 2
It drives above-mentioned presser feet 4 to decline after upper, and feeding ring on above three fabric is made by the elongation of above-mentioned cylinder 15 action
Shape band 6L, 6R, 6C are moved downwards, make the sewing part of the upstream end thereof and round shape object plane material W of their sewing direction of travel Y
The upper surface of W2 contacts.
In this state, horizontal cyclinder shaped double-thread overlock sewing machine M is made to proceed by spinning movement, thus round shape object plane material W
Sewing part W2 by feeding feeding tooth 5 under the fabric for the lower surface for acting on sewing part W2 and acting on upper surface
Feeding is intermittently forced to transfer with endless belt 6L, 6R towards sewing direction of travel Y on presser feet 4 and pair of right and left fabric, and
Pass through the rise and fall action of the left and right eedle 1,1 generated with the spinning movement of sewing machine M, moving back and forth of looper etc. one
The sewing action of consecutive carries out end stitching sewing, in the complete cycle of sewing part (overlapping fabric components) W2 of round shape object plane material W
Form the stitching A of double-locked stitch as shown in FIG. 6.
When end stitching as described above sews, lower feeding feeding tooth 5 acts on the sewing part of round shape object plane material W
The lower surface of W2, and feeding acts on the sewing part W2 of round shape object plane material W with endless belt 6L, 6R on pair of right and left fabric
Upper surface can make sewing part W2's driving these feeding teeth 5 and endless belt 6L, 6R in a manner of synchronous interlock
The sewing part W2 of transfer round shape object plane material W is forced while upper surface and the lower surface 4a sliding contacts of presser feet 4.
Therefore, the round shape object plane material W of the larger sheet rubber R of friction coefficient will be partially coated in sewing part W2 as seam
In the case of object processed, even if the sewing part W2 of round shape object plane material W is rubbed with the 4a sliding contacts of presser feet lower surface
Resistance also can not will produce the bad feelings of feeding reliably and successfully to the downstreams sewing direction of travel Y transfer sewing part W2
Condition preferably completes sewed product to obtain appearance and quality.
Also, presser feet is moved to by feeding feeding tooth 5 under feeding endless belt 6L, 6R on pair of right and left fabric and fabric
The sewing part W2 of the sewing direction of travel downstream end of lower surface 4a, by the intermediate upper surface for acting on sewing part W2
Feeding is forced to transfer with endless belt 6C in a manner of continuing to send out to sewing direction of travel downstream on intermediate fabric, at defined end
Not will produce transfer before portion's stitching sewing finishing and the bad situation of feeding such as stagnate, can it is reliable, smoothly and have good stability
Ground transfer sewing part W2.
In addition, existing sewing machine is not transformed substantially, keep having the basic structure that sewing machine has as former state
That is needle plate 2, eedle 1,1, fabric presser feet 4, the lower internal mechanism etc. fed with feeding tooth 5, sewing machine base portion 22, only implementing will
Feeding is with endless belt 6L, 6R, 6C, feeding moves up and down driving mechanism 15 etc. with tape drive mechanism 16 and band on this on three fabrics
Each structure is appended to the simple and inexpensive improvement of this degree in existing sewing machine as attachment, it will be able to obtain will be because such as
It is also played in the case that the increased fabric of transfer resistance is as sewing object caused by the friction reliably and smoothly
Fabric transfers the fabric transfer device of the sewing machine of function.
Also, will not there is no topical application in sewing part W2 or paste the common fabric of the larger sheet rubber R of friction coefficient
In the case of as sewing object, it can also use as follows：Make feeding endless belt 6L, 6R on above three fabric,
Upward on the other hand separate mobile makes presser feet 4 decline, thus under to 6C in a manner of it will not be contacted with fabric upper surface
The feeding lower surface 4a sliding contacts of fabric upper surface and presser feet 4 when the transfer sewing part W2 of feeding tooth 5, carry out common seam
Braking is made.
In addition, in the above-described embodiment, on intermediate fabric feeding be located at than above-mentioned with the feeding front end of endless belt 6C
The position at rear portion is leaned in the downstreams sewing direction of travel Y of the lower surface 4a of presser feet 4 slightly, acts on by after above-mentioned presser feet 4
Fabric W sewing unit upper surface, further forces to transfer fabric W with the state sent out towards sewing direction of travel Y, still
It can also be configured to, the feeding feeding front end of endless belt 6C and feeding ring on pair of right and left fabric on above-mentioned intermediate fabric
Feeding terminal part of the shape with 6L, 6R locally overlaps on sewing direction of travel Y.
In this case, can make to be fed under endless belt 6L, 6R and fabric by feeding on above-mentioned pair of right and left fabric
Intermittently force the sewing part W2 of transfer annular without feeding on intermediate fabric is stagnantly successfully migrated to feeding tooth 5
Feeding front end with 6C further can reliably avoid the generation of feeding unfavorable condition.
In addition, as the present invention fabric transfer device, can only include pair of right and left fabric on feeding endless belt 6L,
6R can be not provided with feeding endless belt 6C on above-mentioned intermediate fabric.
In addition, in the above-described embodiment, to using the single direction rotation clutch mechanism conduct interlocked with machine spindle
Feeding is illustrated with the driving mechanism of endless belt 6L, 6R, 6C on fabric, and but not limited to this, can also be using stepping
The driving mechanism that motor is driven.
Also, in the above-described embodiment, it is suitable for two pointer type horizontal cyclinder shaped double-thread overlock sewing machine, but can also be applied
In sewing machine for covering chain stitch etc., or suitable for double-thread overlock sewing machine or sewing machine for covering chain stitch with upper feeding mechanism.
Claims (8)
1. a kind of fabric transfer device of sewing machine, has：Needle plate is used to place fabric, and guides the fabric to rule
Surely the feeding of direction of travel is sewed；Eedle, keep eedle line, can by by be formed in the needle plate fall needle portion in a manner of
It moves up and down；Feeding feeding tooth, configures in the lower part of the needle plate, acts on the face being placed on the needle plate under fabric
Expect lower surface, intermittently forces to transfer the fabric along the sewing direction of travel；And presser feet, with the feeding tooth phase
To, configuration in the top of the needle plate, can drive lifting to the down position that fabric is pressed on to the needle plate and release by
The fabric transfer device of the lifting position of pressure, the sewing machine is characterized in that：
Left and right sides exterior arrangement in the direction substantially orthogonal with sewing direction of travel of the presser feet has pair of right and left fabric
Upper feeding band, on a pair of fabric feeding the fabric upper surface being placed on the needle plate is acted on band, in the pressure
Underfooting surface forces to transfer the fabric along sewing direction of travel and in the length range contacted with the needle plate,
It is also equipped with：Feeding tape drive mechanism on fabric, make on the pair of right and left fabric feeding with band under the fabric to
It send to be synchronized with the action of feeding tooth and interlocks and intermittently carry out drive actions；And band moves up and down driving mechanism, makes institute
Feeding band on pair of right and left fabric is stated with the driving lifting linkage of the presser feet to contact or detach with fabric upper surface
Mode moves up and down.
2. the fabric transfer device of sewing machine according to claim 1, it is characterised in that：
The centre position of feeding interband and than the sewing direction of travel of the presser feet lower surface on the pair of right and left fabric
Downstream end is provided with feeding band on intermediate fabric by the position at rear portion, and feeding is acted on band on the intermediate fabric passes through institute
Upper surface among the sewing unit of the fabric after presser feet is stated, further forces to transfer the face towards the rear of sewing direction of travel
Material.
3. the fabric transfer device of sewing machine according to claim 1, it is characterised in that：
On the intermediate fabric feeding band with its feed front end on the pair of right and left fabric feeding band give made arrangements for his funeral
Overlapped that mode is arranged for part on sewing direction of travel for end.
4. the fabric transfer device of sewing machine according to claim 2, it is characterised in that：
Feeding moves up and down driving with band by the band on feeding band and the pair of right and left fabric on the intermediate fabric
Mechanism and integrally move up and down.
5. the fabric transfer device of sewing machine according to claim 1 or 2, it is characterised in that：
Feeding includes with tape drive mechanism on the fabric：The driving of positive and negative reciprocating rotary is linkedly carried out with machine spindle
Axis；With the oscillating rod of drive shaft connection；The clutch plate being connect with the oscillating rod via connecting rod；By fixing the clutch plate
The clutch shaft that is intermittently only driven to rotate to a direction of single direction rotation clutch；And it is installed in the clutch
The winding pulley of feeding band on axis, the described fabric.
6. the fabric transfer device of sewing machine according to claim 4, it is characterised in that：
Feeding includes with tape drive mechanism on the fabric：The driving of positive and negative reciprocating rotary is linkedly carried out with machine spindle
Axis；With the oscillating rod of drive shaft connection；The clutch plate being connect with the oscillating rod via connecting rod；By fixing the clutch plate
The clutch shaft that is intermittently only driven to rotate to a direction of single direction rotation clutch；And it is installed in the clutch
The winding pulley of feeding band on axis, the described fabric.
7. the fabric transfer device of sewing machine according to claim 1 or 2, it is characterised in that：
It includes cylinder that the band, which moves up and down driving mechanism, which makes the yoke of feeding band on one holding each fabric
It is lifted relative to the yoke erecting bed for being fixed on sewing machine main body.
8. the fabric transfer device of sewing machine according to claim 4, it is characterised in that：
It includes cylinder that the band, which moves up and down driving mechanism, which makes the yoke of feeding band on one holding each fabric
It is lifted relative to the yoke erecting bed for being fixed on sewing machine main body.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-043272 | 2017-02-16 | ||
| JP2017043272A JP2018130517A (en) | 2017-02-16 | 2017-02-16 | Fabric transfer device for sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108442043A true CN108442043A (en) | 2018-08-24 |
Family
ID=63190863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711475221.4A Pending CN108442043A (en) | 2017-02-16 | 2017-12-29 | The fabric transfer device of sewing machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2018130517A (en) |
| CN (1) | CN108442043A (en) |
| TW (1) | TW201840923A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045050A (en) * | 2022-07-12 | 2022-09-13 | 广东智能体科技有限公司 | Embedding and clamping robot for garment production |
-
2017
- 2017-02-16 JP JP2017043272A patent/JP2018130517A/en active Pending
- 2017-12-29 CN CN201711475221.4A patent/CN108442043A/en active Pending
-
2018
- 2018-01-08 TW TW107100652A patent/TW201840923A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| TW201840923A (en) | 2018-11-16 |
| JP2018130517A (en) | 2018-08-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180824 |