CN106592115A - Sewing machine - Google Patents
Sewing machine Download PDFInfo
- Publication number
- CN106592115A CN106592115A CN201610899884.8A CN201610899884A CN106592115A CN 106592115 A CN106592115 A CN 106592115A CN 201610899884 A CN201610899884 A CN 201610899884A CN 106592115 A CN106592115 A CN 106592115A
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- CN
- China
- Prior art keywords
- conveyor belt
- roller
- sewn object
- feed
- sewing machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/10—Work-feeding means with rotary circular feed members
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B35/00—Work-feeding or -handling elements not otherwise provided for
- D05B35/02—Work-feeding or -handling elements not otherwise provided for for facilitating seaming; Hem-turning elements; Hemmers
Abstract
The present invention is well performed with hemming. The sewing machine (10) sews the folded-back portion (C1) of the end edge portion of the workpiece (C) to the non-folded portion (C2), and comprises the following: a roller mechanism (30) includes a first roller pair (31), a second roller pair (32), and first and second feed motors (33, 34) which independently drive the first roller pair and the second roller pair ), the first roller pair (31) is conveyed up and down in the feeding direction on the upstream side in the feeding direction of the workpiece to be sewn at the drop position, the second roller pair (32) is conveyed on the downstream side in the feeding direction downstream of the object to be sewn in the feeding direction with respect to the drop position; and a control device (90) that controls the feed rate corresponding to the first and second feed motors and controls the tension of the object to be sewn.
Description
Technical field
The present invention relates to a kind of sewing machine for being suitable for edging sewing.
Background technology
A kind of known sewing machine for being suitable for edging sewing, the sewing machine are opened in cylindrical portion, the peristome of clothes
Peristoma portion turns back and the part after turning back is sutured (for example, referring to patent documentation 1) along the mode of opening edge wraparound.
The sewing of above-mentioned edging is for underwear mostly, the dress material with retractility such as shows solicitude for and carry out.If will as above institute
The dress material with retractility stated is conveyed by feeding tooth, then send part back to compared to feeding tooth directly contact, with
The non-fold back portion of cloth pressing contact occurs to postpone, and is sewed, there are following problems in the state of twisting, i.e.
There is fold etc. in finished goods and cause the reduction of quality of sewing.
Patent documentation 1：Japanese Unexamined Patent Publication 2014-57818 publications
Currently, in order to reduce above-mentioned torsion, operator is by the direction of feed upstream compared with needle downing position of dress material
The part of side is pulled while being sewed, thus the difference to sending part and non-fold back portion back to suppresses.
But, during sewing, operator has to last for pulling dress material the method, by the pact of the operation
Beam, therefore preparation work of next sewing etc. cannot be carried out, cause the reduction of working performance, and cause the increasing of homework burden
Plus.
Further, since manually operation carries out the pulling operation of dress material, therefore edging width (width of fold back portion)
It is unstable, there is sometimes the reduction of quality of sewing due to the technical ability of operator.
Especially, the situation of edging sewing is carried out in the edge of the opening to being formed between surface material distribution and back side cloth
Under, the shape of cloth, state, cloth species are different sometimes, it is possible to therefore and there is the variation of edging width.
The content of the invention
It is an object of the invention to provide a kind of sewing machine that can carry out good edging sewing, with following (1)
The arbitrary feature of～(5).
(1)
A kind of sewing machine, the fold back portion of the end edge portion of sewn object is sutured by which to non-fold back portion,
The sewing machine is characterised by possessing：
Roller mechanism, the roller mechanism possess the first roller to, the second roller to and to first roller to second roller pair
First and second feed motor being independently driven, first roller is in the sewn object relative to needle downing position
Direction of feed upstream side by the sewn object clip up and down and to direction of feed downstream convey, second roller is to relative
The sewn object is clipped up and down and to the feeding side in the direction of feed downstream of the sewn object of the needle downing position
Downstream side conveying；And
Control device, its control feed speed corresponding to first and second feed motor, is carried out for described
The tension force of sewn object.
(2)
According to the sewing machine that above-mentioned (1) is recorded, it is characterised in that
In first roller to, and second roller pair between, possessing：
Upper conveyor belt mechanism, which is contacted from top with the sewn object, by the sewn object under the direction of feed
The conveying of trip side；And
Lower conveyor belt mechanism, which is contacted with the sewn object from below, by the sewn object under the direction of feed
The conveying of trip side.
(3)
According to the sewing machine that above-mentioned (2) are recorded, it is characterised in that
The upper conveyor belt mechanism has：First upper conveyor belt mechanism, which is relative to entering described in the needle downing position
Direction upstream side is provided with upper conveyor belt；And the second upper conveyor belt mechanism, which is relative to described in the needle downing position
Direction of feed downstream is provided with upper conveyor belt,
The lower conveyor belt mechanism has：First lower conveyor belt mechanism, which is relative to entering described in the needle downing position
Direction upstream side is provided with lower conveyor belt；And the second lower conveyor belt mechanism, which is relative to described in the needle downing position
Direction of feed downstream is provided with lower conveyor belt.
(4)
A kind of sewing machine, the fold back portion of the end edge portion of sewn object is sutured by which to non-fold back portion,
The sewing machine is characterised by,
There is sewing width adjustment mechanism, the sewing in the direction of feed upstream side of the sewn object relative to needle downing position
Width adjustment mechanism possesses：Turn back plate, and which is configured between the fold back portion and the non-fold back portion；First and second folder
Roller is held, their described non-fold back portions and the fold back portion of downside from the upside for clipping the plate that turns back up and down；And
Roller travel mechanism, which can respectively around along orthogonal with the direction of feed by first niproll and second niproll
The centrage in direction be rotatably supported, and make first niproll and second folder along the centerline direction
Hold roller to move to opposite direction each other,
The sewing machine possesses：
Width detection portion, the width in its direction orthogonal with the direction of feed to the fold back portion are detected；
And
Control device, its detection width with the fold back portion detected by the width detection portion are accordingly, right
The shift action of described first and second niproll realized by the roller travel mechanism is controlled.
(5)
According to the sewing machine that above-mentioned (4) are recorded, it is characterised in that
The sewing width adjustment mechanism possesses position adjusting mechanism, and the position adjusting mechanism is along with the direction of feed just
The direction of friendship is adjusted to the position of the fold back portion of the end edge portion of the sewn object.
The effect of invention
In the present invention, control device to the feed speed of the first roller mechanism of the direction of feed upstream side of needle downing position and
The feed speed of second roller mechanism in direction of feed downstream is controlled and carries out the tension force for sewn object, therefore
Staff is independent of, and tension force can be stably continuously applied to sewn object, can be mitigated the burden of operator, and effectively press down
The generation that system is reversed.
Further, since pass through the first roller mechanism and the second roller mechanism applies tension force to sewn object, it is right therefore, it is possible to reduce
The dependence of the technical ability of operator, and quality of sewing is stably maintained high-quality.
Further, since operator is unfettered, therefore, it is possible to concurrently be prepared other operations such as operation, seam can be made
The efficiency of manufacturing is improved
In addition, being accordingly to roller with the detection width of the fold back portion of the sewn object detected by width detection portion
In the case of the structure that the shift action of first and second niproll of travel mechanism is controlled, first and second niproll is certainly
The width of the fold back portion of sewn object is adjusted by ground, sewn object is realized therefore, it is possible to be maintained target width
The raising of quality of sewing.
Description of the drawings
Fig. 1 is the front view of the sewing machine involved by first embodiment.
Fig. 2 is the oblique view of the needle downing position periphery of the sewing machine of Fig. 1.
Fig. 3 is the top view of width adjustment mechanism.
Fig. 4 is the side of width adjustment mechanism.
Fig. 5 is the figure that cloth guide portion is observed from cloth direction of feed.
Fig. 6 is the block diagram of the control system for representing sewing machine.
Fig. 7 is the explanatory diagram of sewn object.
Fig. 8 is the flow chart by sewing the edging width control system that width adjustment mechanism is realized.
Fig. 9 is the front view of the sewing machine involved by second embodiment.
Figure 10 is the oblique view of the cloth pressing periphery of Fig. 1.
The explanation of label
10th, 10A sewing machines
11 suture needles
15 sewing machine electromotors
30 roller mechanisms
31 first rollers pair
32 second rollers pair
33 first feed motors
34 second feed motors
40th, 40A upper conveyor belts mechanism
41 first upper conveyor belt mechanisms
42 second upper conveyor belt mechanisms
50th, 50A lower conveyor belts mechanism
51 first lower conveyor belt mechanisms
52 second lower conveyor belt mechanisms
60 width adjustment mechanisms
61 first niprolls
62 second niprolls
63 turn back plate
64 roller travel mechanisms
65 position adjusting mechanisms
67 cloth guide portions
90 control devices
91 CPU
Side roller on 311 first
Side roller on 321 first
312 second time side roller
322 second time side roller
411 first upper conveyor belts
411A upper conveyor belts
412 first upper conveyor belt motor
415th, 415A abuts belt wheel
421 second upper conveyor belts
422 second upper conveyor belt motor
425 abut belt wheel
511 first lower conveyor belts
511A lower conveyor belts
512 first lower conveyor belt motor
515th, 515A abuts belt wheel
521 first lower conveyor belts
522 second lower conveyor belt motor
525 abut belt wheel
641st, 642 support tube
643 support blocks
645 width adjusting motor
651 position adjustments motor
661 first position detection sensors (width detection portion)
662 second position detection sensors (width detection portion)
C sewn objects
C1 fold back portions
The non-fold back portions of C2
C3 creased portions
H edging width
Specific embodiment
[first embodiment]
Below, based on Fig. 1 to Fig. 8, the sewing machine 10 of the first embodiment as the present invention is illustrated.
Fig. 1 is the structure for the part for omitting sewing machine 10 and the front view that illustrates.The sewing machine is stitched as circumferential weld
Thread a kind of decoration seam sewing machine of machine, become and be particularly suitable for carrying out the structure of conveying of sewn object to be applied with improvement
The construction of edging sewing.
Above-mentioned sewing machine 10 possesses：Needle bar 12, which enters to three suture needles 11 (only illustrating in FIG) in bottom
Row keeps；Needle bar reciprocating mechanism, which moves up and down needle bar 12；Looper mechanism, which is to reaching the standard grade through each suture needle 11
Caught and be wound with looper line；Wire grip (spreader) mechanism, its along three suture needles 11 orientation to dress
Ornamental thread carries out bracing wire；Cloth pressing 13, which is pressed to sewn object from top in needle downing position；Roller mechanism 30, which has
First roller to 31 and second roller to 32, first roller is to 31 in the direction of feed upstream side of the sewn object relative to needle downing position
Sewn object is clipped up and down and sewn object is conveyed to direction of feed downstream, second roller is to 32 relative to the pin position that falls
Sewn object is clipped and sewn object is defeated to direction of feed downstream by the direction of feed downstream of the sewn object put up and down
Send；Upper conveyor belt mechanism 40, its first roller to 31 and second roller to 32 between contact from top with sewn object, this is stitched
Thing processed is conveyed to direction of feed downstream；Lower conveyor belt mechanism 50, its first roller to 31 and second roller to 32 between from below
Contact with sewn object, the sewn object is conveyed to direction of feed downstream；Sewing width adjustment mechanism 60, which is to being sewn
The width (edging width) of the fold back portion of the end edge portion of thing is adjusted；Sewing machine stand 14, which carries out propping up to above-mentioned each structure
Support is housed；And control device 90, which carries out the action control of above-mentioned each structure.
Sewing machine stand 14 possesses：Sewing machine base portion 141, which is located at bottom；Longitudinal body portion 142, which is from sewing machine bottom
Portions 141 are erected；And sewing machine arm 143, which is parallel with sewing machine base portion 141 from the upper end in longitudinal body portion 142
Stretch out on ground.
In addition, stretching out direction leading section in sewing machine base portion 141, possess towards this and stretch out what direction was further stretched out
Cylindric air cylinder base 144.And, the needle plate that the top of the air cylinder base 144 is provided with upper surface level (saves sketch map
Show), the upper surface along the needle plate is conveyed to sewn object, and is sewed on the needle plate.
Below, by it is parallel with the upper surface of needle plate, and the direction that conveyed to sewn object is set to X-direction, will be with
The upper surface of needle plate is parallel, and the direction orthogonal with X-direction is set to Y direction (direction vertical with the paper of Fig. 1), will be with
The orthogonal vertical above-below direction of both X-direction and Y direction is set to Z-direction.In addition, by X-direction and to sewn object
The direction for being conveyed is set to " direction of feed downstream ", and its opposite direction is set to " direction of feed upstream side ", by Y direction,
And the left-hand side towards direction of feed downstream is set to " left side ", and right-hand side is set to " right side ".
Above-mentioned needle bar reciprocating mechanism is known structure, is possessed：Sewing machine electromotor 15 (with reference to Fig. 6)；Upper axle, its
Along Y direction, rotated by the sewing machine electromotor 15；And crank mechanism, the revolving force of upper axle is transformed to up and down by which
Mobile driving force and apply to needle bar 12, therefore omit detailed description.
Needle bar 12 is kept to three suture needles 11 with the state arranged along Y direction in its bottom.
Looper mechanism possesses：Lower axle, its along Y direction, via conveyer mechanism together with upper axle linkage rotation；Cam
Mechanism, which is by reciprocating rotation that the rotation transformation of lower axle is around X-axis；And looper, which carries out turning for rotational action from around X-axis
Dynamic wrist is applied in the straight reciprocating action along Y direction.
Looper and is inserted with looper line in the leading section in the downside of needle plate by sharp leading section towards left.
And, looper is before when three suture needles 11 decline and then protrudes into the wire loop that each is reached the standard grade and catches to respectively reaching the standard grade, three
Root suture needle 11 protrudes into looper the wire loop of the looper line produced when retreating and loop wire of fighting each other is caught, above-mentioned by repetition
Action and will reach the standard grade and mutually wind with looper line and form stitching.
Wire grip mechanism possesses：Wire grip, which can be supported by sewing machine arm 143 in which turn about the Z axis；Wire grip axle,
Which carries out the reciprocating rotation around Y-axis by the moment of torsion transmitted via cam mechanism from upper axle；And crank mechanism, which is by bracing wire
The reciprocating rotation of device axle is transformed to reciprocating rotation action about the z axis and applies to wire grip.
Wire grip possesses the hook portion for engaging decorative thread in leading section, and the leading section is reciprocal along Y direction, will can fill
Ornamental thread along Y direction it is reciprocal in the state of decorative thread is sewed up to reaching the standard grade.
Cloth pressing 13 is equipped in the bottom of the foot-pressing bar 131 that can be supported by sewing machine arm 143 up or down,
Press pressure downwards is applied in by spring (not shown).
Cloth pressing 13 is arranged at the needle downing position on needle plate, and being formed with three suture needles 11 is carried out falling the peristome of pin.
In addition, in the cloth pressing 13, in order that the first upper conveyor belt of the upper conveyor belt mechanism 40 for describing below
411 and second upper conveyor belt 421 can with abutted by the sewn object that the cloth pressing 13 is pressed, at the both ends of X-direction
Otch 132,133 is formed respectively, and the abutting belt wheel 415 of the upper conveyor belt mechanism 40 for describing below can be pivotally supported around Y-axis
In otch 132, the abutting belt wheel 425 of the upper conveyor belt mechanism 40 for describing below can be rotationally supported at otch 133 around Y-axis
Interior (with reference to Fig. 3 and Figure 10).
[roller mechanism]
Roller mechanism 30 possesses：First and second roller is to 31,32；And first and second feed motor 33,34, they are right
Each roller is driven (with reference to Fig. 6) respectively to 31,32.
Above-mentioned first roller is to 31 by can be around side roller 311 on first that Y-axis is rotatably supported by bracing frame (not shown) and
Once side roller 312 is constituted.On first, side roller 311 and first time side roller 312 are configured to, across height identical with the upper surface of needle plate
Horizontal plane and the contact of respective outer peripheral face or be close to, folder sewn object between them is sent to direction of feed downstream
Go out.
Second roller is to 32 by can be under side roller 321 and second on second that Y-axis is rotatably supported by bracing frame (not shown)
Side roller 322 is constituted.On second, side roller 321 and second time side roller 322 are configured to, across with the mutually level water of the upper surface of needle plate
Plane and the contact of respective outer peripheral face are close to, and folder sewn object between them is sent to direction of feed downstream.
Therefore, preferably at least its outer peripheral face of each roller 311,312,321,322 possesses elasticity, using elastic force by sewn object
Clamping.In addition, its outer peripheral face is preferably the big material of frictional resistance.
In addition, each roller 311,312,321,322 only right part is supported, left part becomes free end.Thereby, it is possible to
From free end side between side roller on first 311 and first time side roller 312 and from free end side to side roller on second 321 and second
Sewn object is inserted between lower side roller 322.
In addition, first and second roller applies the first feed motor 33 or the second to 31,32 only downward side rollers 312,322
The moment of torsion of feed motor 34, upper side roller 311,321 carry out driven rotation.
That is, the first roller is attached to the transmission belt wheel (not shown) linked with one end, Jing to 31 first time side roller 312
Moment of torsion is applied in from the first feed motor 33 by Timing Belt 35.The driving direction of first time side roller 312 is counterclockwise in FIG
Direction, in the feeding of sewn object, on first, side roller 311 and first time side roller 312 carry out driven rotation in reverse direction.
Similarly, the second roller to 32 second time side roller 322 be attached to one end link conveyer belt (not shown)
Wheel, is applied in moment of torsion from the second feed motor 34 via Timing Belt 36.The driving direction of second time side roller 322 is in FIG
Counterclockwise, in the feeding of sewn object, on second, side roller 321 and second time side roller 322 carry out driven rotation in reverse direction
Turn.
In addition, be attached to help roll 37 to 31 lower section in the first roller, the help roll 37 can be rotated around Y-axis, and left end
Portion is supported in a cantilevered fashion.
Edging sewing is generally carried out in the way of the peristome wraparound by sewn object.As described above, in order that while around
Return the sewn object of feeding on one side not with air cylinder base 144 around other mechanism contacts, interference, help roll 37 is right from inner side
Sewn object is guided, and prevents sewn object from getting too close to air cylinder base 144.
[upper conveyor belt mechanism]
Upper conveyor belt mechanism 40 possesses：First upper conveyor belt mechanism 41, which is in the direction of feed relative to needle downing position
Trip side, by the first upper conveyor belt 411 for being abutted above the sewn object from needle plate by sewn object to feeding side
Downstream side conveying；And the second upper conveyor belt mechanism 42, its in the direction of feed downstream relative to needle downing position, by from
The second upper conveyor belt 421 abutted above sewn object on needle plate is defeated to direction of feed downstream by sewn object
Send.
First upper conveyor belt mechanism 41 possesses：First upper conveyor belt 411；First upper conveyor belt motor 412, which becomes
The driving source conveyed to sewn object by one upper conveyor belt 411；Driving pulley 413, it is electronic which is arranged at the first upper conveyor belt
The output shaft of machine 412；Tensioning wheel 414, which throughout applies tension force to the first upper conveyor belt 411；And belt wheel 415 is abutted, its
The first upper conveyor belt 411 is made to abut with sewn object side.
First upper conveyor belt 411 is endless loops conveyer belt, be configured to pass abutting belt wheel 415 and in the attached of needle downing position
Closely, and its direction of feed upstream side is abutted from top with the sewn object on needle plate.In addition, first upper conveyor belt 411
By the first upper conveyor belt motor 412, sewn object is conveyed towards direction of feed downstream.
First upper conveyor belt motor 412 outputting it axle towards in the state of parallel with Y direction, by being fixed on seam
The bracing frame (not shown) of frame of threading 14 is supported.And, set up to have on first in the driving pulley 413 of its output shaft equipment and transmit
Band 411, rotates first upper conveyor belt 411.
Abutting belt wheel 415 swims the inner side of the otch 132 of the end of side in feed direction, can be around Y-axis rotatably by front
The cloth pressing 13 stated is supported.The abutting belt wheel 415 is configured at cloth pressing 13 at appropriate heights, so that transmitting on first
Abutted with the sewn object on needle plate with the pressure that abuts for specifying with 411.
Each tensioning wheel 414 is in order to being erected at driving pulley 413 and abutting the first upper conveyor belt 411 between belt wheel 415
Apply tension force, be configured to everywhere from the inside or outside of which be tensioned and abut.Each tensioning wheel 414 can be around Y-axis rotatably by quilt
The bracing frame (not shown) that sewing machine stand 14 is supported is supported.
Second upper conveyor belt mechanism 42 possesses：Second upper conveyor belt 421；Second upper conveyor belt motor 422, which becomes
The driving source conveyed to sewn object by two upper conveyor belts 421；Driving pulley (omits diagram), and which is arranged on second and transmits
Output shaft with motor 422；And belt wheel 425 is abutted, which makes the second upper conveyor belt 421 abut with sewn object side.
Second upper conveyor belt 421 is endless loops conveyer belt, be configured to pass abutting belt wheel 425 and in the attached of needle downing position
Closely, and its direction of feed downstream is abutted from top with the sewn object on needle plate.In addition, second upper conveyor belt 421
By the second upper conveyor belt motor 422, sewn object is conveyed towards direction of feed downstream.
Second upper conveyor belt motor 422 outputting it axle towards in the state of parallel with Y direction, by being fixed on seam
The bracing frame (not shown) of frame of threading 14 is supported.And, setting up in the driving pulley of its output shaft equipment has the second upper conveyor belt
421, rotate second upper conveyor belt 421.
Belt wheel 425 is abutted in the inner side of the otch 133 of the end in direction of feed downstream, can be around Y-axis rotatably by front
The cloth pressing 13 stated is supported.The abutting belt wheel 425 is configured at cloth pressing 13 at appropriate heights, so that transmitting on second
Abutted with the sewn object on needle plate with the pressure that abuts for specifying with 421.
[lower conveyor belt mechanism]
Lower conveyor belt mechanism 50 possesses：First lower conveyor belt mechanism 51, which is in the direction of feed relative to needle downing position
Trip side, by the first lower conveyor belt 511 for being abutted below the sewn object from needle plate by sewn object to feeding side
Downstream side conveying；And the second lower conveyor belt mechanism 52, its in the direction of feed downstream relative to needle downing position, by from
The second lower conveyor belt 521 abutted below sewn object on needle plate is defeated to direction of feed downstream by sewn object
Send.
First lower conveyor belt mechanism 51 possesses：First lower conveyor belt 511；First lower conveyor belt motor 512, which becomes
The driving source conveyed to sewn object by one lower conveyor belt 511；Driving pulley 513, it is electronic which is arranged at the first lower conveyor belt
The output shaft of machine 512；Tensioning wheel 514, which throughout applies tension force to the first lower conveyor belt 511；Belt wheel 515 is abutted, which makes the
One lower conveyor belt 511 is abutted with sewn object side；And transfer tape 516 and transmission belt wheel 517, they are electric by the first lower conveyor belt
The moment of torsion of motivation 512 is transferred to the first lower conveyor belt 511.
First lower conveyor belt 511 is endless loops conveyer belt, be configured to pass abutting belt wheel 515 and in the attached of needle downing position
Closely, and its direction of feed upstream side is abutted with the sewn object on needle plate from below.In addition, first lower conveyor belt 511
By the first lower conveyor belt motor 512, sewn object is conveyed towards direction of feed downstream.
Abut the lower position that belt wheel 515 is configured at the abutting belt wheel 415 of the first upper conveyor belt mechanism 41.That is, in the position
Put, needle plate and air cylinder base 144 form otch, in the inner side of the otch, abutting belt wheel 515 can rotatably be supported around Y-axis.
And, abut belt wheel 515 in order to via the first lower conveyor belt 511 with specify abutting pressure abutted with sewn object and
Which is highly set.
Each tensioning wheel 514 is in order to being erected at transmission belt wheel 517 and abutting the first lower conveyor belt 511 between belt wheel 515
Apply tension force, be configured to everywhere from the inside or outside of which be tensioned and abut.Each tensioning wheel 514 can be around Y-axis rotatably by quilt
The bracing frame (not shown) and air cylinder base 144 that sewing machine stand 14 is supported is supported.
Transmission belt wheel 517, can be around Y-axis rotatably by being arranged at sewing machine stand 14 not in the side of air cylinder base 144
The bracing frame of diagram is supported.Being set up in the transmission belt wheel 517 together has the first lower conveyor belt 511 and transfer tape 516, by transfer tape
516 moment of torsion is transferred to the first lower conveyor belt 511.
First lower conveyor belt motor 512 outputting it axle towards in the state of parallel with Y direction, by being fixed on seam
The bracing frame (not shown) of frame of threading 14 is supported.And, setting up in the driving pulley 513 of its output shaft equipment has transfer tape 516,
Rotate transfer tape 516 via transmission belt wheel 517, so that the first lower conveyor belt 511 is defeated to aforesaid direction by sewn object
Send.
Second lower conveyor belt mechanism 52 possesses：Second lower conveyor belt 521；Second lower conveyor belt motor, 522 (reference picture
6), which becomes the driving source conveyed to sewn object by the second lower conveyor belt 521；Driving pulley (omits diagram), its setting
In the output shaft of the second lower conveyor belt motor 522；Tensioning wheel 524, which throughout applies tension force to the second lower conveyor belt 521；
Belt wheel 525 is abutted, which makes the second lower conveyor belt 521 abut with sewn object side；And transfer tape 526 and transmission belt wheel 527, it
The moment of torsion of the second lower conveyor belt motor 522 is transferred to into the second lower conveyor belt 521.
Second lower conveyor belt 521 is endless loops conveyer belt, be configured to pass abutting belt wheel 525 and in the attached of needle downing position
Closely, and its direction of feed downstream is abutted with the sewn object on needle plate from below.In addition, second lower conveyor belt 521
By the second lower conveyor belt motor 522, sewn object is conveyed towards direction of feed downstream.
Abut the lower position that belt wheel 525 is configured at the abutting belt wheel 425 of the second upper conveyor belt mechanism 42.That is, in the position
Put, needle plate and air cylinder base 144 form otch, in the inner side of the otch, abutting belt wheel 525 can rotatably be supported around Y-axis.
And, belt wheel 525 is abutted in order to right so that the abutting pressure for specifying is abutted with sewn object via the second lower conveyor belt 521
Which is highly set.
Each tensioning wheel 524 is in order to being erected at transmission belt wheel 527 and abutting the second lower conveyor belt 521 between belt wheel 525
Apply tension force, be configured to everywhere from the inside or outside of which be tensioned and abut.Each tensioning wheel 524 can be around Y-axis rotatably by quilt
The bracing frame (not shown) and air cylinder base 144 that sewing machine stand 14 is supported is supported.
Transmission belt wheel 527, can be around Y-axis rotatably by being arranged at sewing machine stand 14 not in the side of air cylinder base 144
The bracing frame of diagram is supported.Being set up in the transmission belt wheel 527 together has the second lower conveyor belt 521 and transfer tape 526, by transfer tape
526 moment of torsion is transferred to the second lower conveyor belt 521.
Second lower conveyor belt motor 522 outputting it axle towards in the state of parallel with Y direction, by being fixed on seam
The bracing frame (not shown) of frame of threading 14 is supported.And, setting up in the driving pulley of its output shaft equipment has transfer tape 526, Jing
Rotate transfer tape 526 by transmission belt wheel 527, so that sewn object is conveyed by the second lower conveyor belt 521 to aforesaid direction.
[sewing width adjustment mechanism]
Fig. 2 is the oblique view for sewing width adjustment mechanism 60, and Fig. 3 is top view, and Fig. 4 is side view.
Sewing width adjustment mechanism 60 is following mechanisms, i.e. in sewing, to being conveyed by each conveyer mechanism 40,50
Sewn object C carry out edging sewing in the case of, for fold back portion C1 width (direction orthogonal with direction of feed,
That is, the width in Y direction) it is adjusted.
As illustrated, sewing width adjustment mechanism 60 possesses：Turn back plate 63, and which is configured at folding at the position of the pin that makes a reservation for fall
Return between part C1 and non-fold back portion C2；First and second niproll 61,62, they are from the upside for clipping the plate 63 that turns back up and down
Non- fold back portion C2 and downside fold back portion C1；Roller travel mechanism 64, which is by the first niproll 61 and the second niproll 62
Can rotatably be supported around the centrage along Y direction respectively, and 61 He of the first niproll is made along centerline direction
Second niproll 62 is moved to opposite direction each other；And position adjusting mechanism 65, its ora terminalis along Y direction to sewn object C
The position of fold back portion C3 in portion is adjusted.
The external diameter of above-mentioned first and second niproll 61,62 is equal, clips mutually level with the upper surface of needle plate flat
Plate is turned back plate 63 and is closely configured with its upper side and lower side.In addition, in the Y direction of first and second niproll 61,62
Length, be set abundant length compared with the width (edging width) of the fold back portion of sewn object C.
Roller travel mechanism 64 possesses：Support tube 641, which is pivotably supported the first niproll 61；Support tube 642, which can
Pivotally support the second niproll 62；Support block 643, which is in the state of making each support tube 641,642 parallel and close to propping up
Support cylinder 641,642 is supported；And width adjusting motor 645, its via with the tooth bar for being formed at each support tube 641,642
Tooth 641a, 642a engagement little gear 644 and make each support tube 641,642 along Y direction move.
Support tube 641,642 can independently pivotally support the first niproll 61, the second niproll 62 in its left part.
In addition, each support tube 641,642 is cylindrical shape, the first niproll 61 or the second niproll 62 can be supported with one heart.
Supported hole is formed with support block 643, the supported hole carries out propping up to each support tube 641,642 with the state of insertion
Support, under the holding state realized by supported hole, state alignment of each support tube 641,642 to be close to up and down, in addition, wherein
Heart line direction is parallel with Y direction.
In addition, the supported hole of support block 643, can move each support tube 641,642 along its insertion direction (Y direction)
It is dynamic.Additionally, be formed between each supported hole and each support tube 641,642 of support block 643 keyway construction, be supported so that
Obtain each support tube 641,642 not rotate relative to support block 643.
In the periphery of the other end of each support tube 641,642, rack tooth 641a, 642a are formed with along Y direction.And
And, each support tube 641,642 is equipped on support block 643 in the way of mutual rack tooth 641a, 642a are relative.
And, for rack tooth 641a, 642a relative to each other of each support tube 641,642, little gear 644 with both sides
The mode of engagement is configured between each support tube 641,642.
The little gear 644 is installed on the output shaft of width adjusting motor 645.It is electronic therefore, it is possible to pass through width adjusting
The driving of machine 645, makes the first niproll 61 and the second niproll 62 along Y direction mutually reciprocal via each support tube 641,642
Direction moves.
As shown in figure 4, between the first niproll 61 and the second niproll 62, the plate 63 that turns back is with the state along X-Y plane
Configured, sewn object C turns back in the right part for turning back plate 63, becoming fold back portion C1, upside on the downside of which becomes non-folding
Return part C2 and convey to direction of feed downstream.If sewn object C is conveyed to direction of feed downstream, the first niproll
61 and second niproll 62 be in close contact with sewn object, therefore mutually rotate in reverse direction.And, in this condition,
For example, if by the first niproll 61 to the right, the second niproll 62 move to the left in the way of to width adjusting motor 645
It is driven, then fold back portion C1 of sewn object C is pulled to the left, and non-fold back portion C2 is pulled to the right, is made
The width of fold back portion C1 is edging width h extensions.In addition, if by width adjusting motor 645 to above-mentioned opposite direction
It is driven, then reduces edging width h.
Position adjusting mechanism 65 carries out mounting support to roller travel mechanism 64, also via 643 pairs of the first niprolls of support block
61st, the second niproll 62 and each support tube 641,642 are supported.And, position adjusting mechanism 65 possesses：Tie can these
Sliding guide portion and apply electronic along the position adjustments of the shift action of the Y direction that structure is integrally moved along Y direction
Machine 651 (with reference to Fig. 6), is configured to make the first niproll 61 and the second niproll 62 simultaneously to identical in Y direction
Move and carry out position adjustments in direction.
In addition, as shown in figure 3, in the direction of feed upstream side of the first niproll 61 and the second niproll 62 and the plate that turns back
63 lower section is configured with：First position detection sensor 661, the leading section turned back of its fold back portion C1 to sewn object C
Detected position in the Y direction of (left part)；And second position detection sensor 662, its end to sewn object C
Detected position in the Y direction of the creased portion C3 of edge.
Above-mentioned each position detection sensor 661,662 is multiple photo detectors along the so-called of Y direction arrangement formation
Line sensor.
And, first position detection sensor 661 is relative with fold back portion C1 of sewn object C.For example, in first position
Detection sensor 661 sets up illuminating source, and the lower surface to the plate 63 that turns back carries out light irradiation from below.By make to turn back plate 63 by
Light reflects good material and is formed, and blocks as the plate 63 that turns back is folded back part C1, therefore first position detection sensor 661 pairs
The photo detector for becoming the high part of light reception intensity and low portion boundary is determined, thus, it is possible to fold back portion C1
Detected position in the Y direction of the leading section turned back.
In addition, second position detection sensor 662 compared with first position detection sensor 661 is arranged at and is slightly closer to
The position of support block 643, it is relative with the creased portion C3 of the end edge portion of sewn object C.The second position detection sensor 662 by
Blocked by creased portion C3 in the photo detector of a part, therefore become light by 661 pairs by first position detection sensor
The photo detector of the high part of intensity and low portion boundary is determined, so as to 662 energy of second position detection sensor
It is enough that position in the Y direction of creased portion C3 is detected.
And, first position detection sensor 661 is to the position in the Y direction of the leading section turned back of fold back portion C1
Detected, second position detection sensor 662 is detected to the position in the Y direction of creased portion C3, thus, it is possible to
Obtain the distance between the two positions, i.e. edging width h.
Therefore, first and second position-detection sensor 661,662 is used as orthogonal with direction of feed to fold back portion C1
The width " the width detection portion " detected in direction work.
In addition, in the direction of feed downstream of sewing width adjustment mechanism 60 and with the first upper conveyor belt mechanism 41 the
The upstream side compared with the abutted position of sewn object of one upper conveyor belt 411 is configured with cloth guide portion 67, and the cloth is guided
Portion 67 is to the position in the Y direction of the leading section turned back of fold back portion C1 of sewn object C and the Y-axis side of creased portion C3
Position upwards is specified.
The cloth guide portion 67 is as shown in figure 5, possess in the first guided plate 671 of the longer rectangle of Y direction, and at which
Second guided plate 676 of the upper stacked rectangle longer in Y direction.These guided plates 671,676 are by along Y direction
Elongated hole and be installed on sewing machine base portion 141, be able to carry out position adjustments along Y direction.
First guided plate 671 possesses the side of sidewall portion 672 for vertically erecting, and the upper end of side of sidewall portion 672 in its left part
Portion squarely bends to the right and forms reflex part 673.
In addition, the second guided plate 676 possesses the side of sidewall portion 677 for vertically erecting in its left part, the side of sidewall portion 677 and
The side of sidewall portion 672 of one guided plate 671 is compared and is configured in right.
And, the creased portion C3 of the side of sidewall portion 677 of the second guided plate 676 face and sewn object C to the left be close to or
Abut and its position is specified, the side of sidewall portion 672 of the first guided plate 671 is in its right flank and the reflex part of sewn object C
The leading section of C1 is divided to be close to or abut and specify to its position.
[control system of sewing machine]
As shown in fig. 6, components described below is connected with via imput output circuit (not shown) in control device 90：Display surface
Plate 94, its state to the various settings related to sewing, current sewing machine show；Configuration switch 95, which is attached to
Display floater 94, as the picture and selecting for carrying out various settings or the setting for being used for input into line command, numerical value input
Unit；And activate switch 98, the beginning of its input sewing.
Activate switch 98 is, by input operation, the driving instruction of sewing action to be input into the unit of control device 90.
That is, if carrying out the input of activate switch 98, control device 90 enters to exercise the action control that sewing starts.
Following setting inputs are carried out from configuration switch 95 by operator, i.e. the first feed motor 33 and the second feeding electricity
34 respective feed speed of motivation, the first upper conveyor belt motor 412, the second upper conveyor belt motor 422, the first lower conveyor belt
522 respective conveyer belt transporting velocity of motor 512 and the second lower conveyor belt motor, the edging width of sewn object C, stitched
Position of creased portion C3 of thing processed etc..
In addition, control device 90 via drive circuit 15a, 33a, 34a, 412a, 422a, 512a, 522a, 645a,
651a and being connected to become the sewing machine electromotor 15 of its control object, the first feed motor 33, second feed it is electronic
Under machine 34, the first upper conveyor belt motor 412, the second upper conveyor belt motor 422, the first lower conveyor belt motor 512, second
Conveyer motor 522, width adjusting motor and position adjustments motor.
In addition, being connected with first position detection sensor 661 and second position detection sensor 662 in control device 90.
In addition, the encoder 16 detected to its shaft angle degree is equipped with upper axle, the encoder 16 and control device 90
Connection.
And, above-mentioned encoder 16, drive circuit 15a, 33a, 34a, 412a, 422a, 512a, 522a, 645a, 651a,
First position detection sensor 661 and second position detection sensor 662 are connected with control device 90 via interface (not shown)
Connect.
And, control device 90 possesses：CPU 91, which carries out various controls；And memorizer 92, which is written with and performs seam
Thread machine 10 action control control program.
[tension force realized by roller mechanism]
As shown in fig. 7, in the case where sewn object C is underwear, carrying out edging sewing with the end edge portion along its peristome H
In case of illustrate.
During edging sewing, the end edge portion sewed by an edge applies tension force carries out decoration sewing.Therefore,
Sewing machine 10 carries out the tension force realized by roller mechanism 30.
Sewn object C inserts first time side roller 312, second time side roller 322 and auxiliary in the inner side of its peristome H to become
The mode of the state of roller 37 is arranged at sewing machine 10.And, sewed in the way of along the end edge portion wraparound of peristome H.
Now, control device 90 is fed with the feed speed ratio for becoming second time side roller 322 in direction of feed downstream
The mode that first time side roller 312 of direction upstream side is fast is controlled, thus the second roller to 32 and first roller to 31 between, quilt
Sewing object is subject to tension force while being conveyed.
The second roller in the tension force to 32 feed speed and the first roller to 31 feed speed can by setting
Switch 95 and independently setting speed value, are registered in memorizer 92.
In addition, if 32 feed speed is passed through configuration switch 95 and is set as basic feed speed the second roller
Fixed, then control device 90 can also be subtracted each other or be made the basic feed speed and be multiplied by from basic feed speed with certain subtraction value
Certain reduction ratio, automatically calculates feed speed of first roller to 31, each feed speed is registered in memorizer 92.Separately
Outward, in this case, it is also possible to the subtraction value of computing will be automatically carried out by control device 90 or ratio is reduced beforehand through setting
Surely switch 95 is set, and is registered in memorizer 92.
In addition, as shown in fig. 7, in the case of the stylolitic structure for the front of clothes and back coat of sewn object C, existing sometimes
In front path K1 and rear path K2, sewing state changes the end edge portion of peristome H.In situations as mentioned above, may be used
In front path K1 and rear path K2, independently to set feed speed and first roller feed speed to 31 of second roller to 32
(or basic feed speed, subtraction value, reduce ratio etc.).
And, when being sewed for front path K1 and rear path K2, setting value can be switched and carry out tension force.
With regard to the switching of above-mentioned setting value, the situation of pin number for example, is determined in front path K1 and rear path K2 respectively
Under, counting can be carried out to pin number while sewing, if having carried out the sewing with the pin number corresponding amount of front path K1,
Then it is controlled to and automatically switches setting value.
In addition, in the case where being the stylolitic structure of front of clothes and back coat of sewn object C, in front of clothes and back coat
Suture location N, sewn object is thickening.Therefore, using the situation, sewn object transport path and with needle downing position phase
Position sensors configured than becoming upstream side, the sensor is by optical profile type or contact to the thickness of sewn object
Variation is detected, suture location N is detected, can be based on testing result and be controlled to, if suture location N reaches
Pin position, then switch over to setting value.
[the conveyer belt conveying control of cascading conveyors mechanism]
The tension force realized by roller mechanism 30 efficiently reduces fold back portion C1 of sewn object C and non-fold back portion C2
Torsion, but in order to more directly suppress reverse generation, by control device 90 carry out by upper conveyor belt mechanism 40 and under pass
The conveyer belt conveying control of the sewn object that tape-feed 50 is realized.
That is, sewn object C carries out defeated in the state of fold back portion C1 is located at upside positioned at downside, non-fold back portion C2
Send, but in order to the feed speed for reducing fold back portion C1 and non-fold back portion C2 it is poor, to upper conveyor belt mechanism 40 and lower conveyor belt
The conveyer belt transporting velocity of mechanism 50 is controlled.
Alternatively, it is also possible to swim side and downstream in feed direction, speed difference is set in conveyer belt transporting velocity and is entered
Row conveying.
Specifically, with regard to the first upper conveyor belt motor 412, the second upper conveyor belt motor 422, the first lower conveyor belt
Motor 512 and the second lower conveyor belt motor 522, can pass through the independently setting speed value of configuration switch 95, be registered in and deposit
In reservoir 92.
For example, in the case where the upside of sewn object C occurs to postpone, by the transmission of the first upper conveyor belt motor 412
It is set as the value faster than the first lower conveyor belt motor 512 with transporting velocity, by the conveyer belt of the second upper conveyor belt motor 422
Transporting velocity is set as the value faster than the second lower conveyor belt motor 522.
In addition, in the case where the downside of sewn object C occurs to postpone, by the transmission of the first upper conveyor belt motor 412
It is set as the value slower than the first lower conveyor belt motor 512 with transporting velocity, by the conveyer belt of the second upper conveyor belt motor 422
Transporting velocity is set as the value slower than the second lower conveyor belt motor 522.
In addition, it would be desirable to which the conveyer belt transporting velocity for accelerating a side is set as basic transmission band transporting velocity, with regard to hope
Slow down the conveyer belt transporting velocity of a side, control device 90 can from the basic transmission with transporting velocity with certain subtraction value phase
Subtracting or making the basic transmission certain reduction ratio to be multiplied by with transporting velocity, automatically calculated, each conveyer belt is conveyed
Speed is registered in memorizer 92.In addition, in this case, it is also possible to will automatically carry out subtracting each other for computing by control device 90
Value reduces ratio, which conveyer belt transporting velocity will accelerate up and down, is set by configuration switch 95 in advance, is registered in and deposits
Reservoir 92.
In addition, as illustrated as the former, in the sewn object C shown in Fig. 7, sometimes in front path K1 and rear path K2, seam
State processed changes, therefore in front path K1 and rear path K2, can independently set the conveyer belt conveying of each motor
Speed (or basic transmission band transporting velocity, subtraction value, reduce ratio, will up and down which conveyer belt transporting velocity accelerate etc.).
And, when sewing to front path K1 and rear path K2, above-mentioned setting value can be switched and transmitted
Band conveying control.
With regard to the switching of above-mentioned setting value, the situation of pin number for example, is determined in front path K1 and rear path K2 respectively
Under, counting can be carried out to pin number while sewing, if having carried out the sewing with the pin number corresponding amount of front path K1,
Then it is controlled to and automatically switches setting value.
In addition, as illustrated as the former, in the case where being the stylolitic structure of front of clothes and back coat of sewn object C, pass through
The sensor of optical profile type or contact is detected to suture location N of front of clothes and back coat, if being controlled to suture location N
Needle downing position is reached, then setting value is switched over.
[by sewing the edging width control system that width adjustment mechanism is realized]
The edging width by sewing the realization of width adjustment mechanism 60 that flow chart based on Fig. 8 is carried out to control device 90
Control is illustrated.Process shown in the Fig. 8 is repeated with the tiny time cycle for specifying during sewing.
First, control device 90 carries out the reading of first and second position-detection sensor 661,662, obtains sewn object
The position (step S1) of turn back leading section and the creased portion C3 of fold back portion C1 of C.
And, the Y direction width based on this to fold back portion C1 is that edging width is calculated, to the detection edging width
Whether degree is judged (step S3) as the permissible range of benchmark in using the setting value of edging width set in advance.
Now, detection edging width in using the setting value of edging width as the situation outside the permissible range of benchmark
Under, width adjusting motor 645 is driven to the direction of rotation for making edging width become setting value and is carried out edging width
Correction (step S5), end process.
In addition, detection edging width in using the setting value of edging width as the situation in the permissible range of benchmark
Under, to the position of creased portion C3 whether setting position the allowing as benchmark in creased portion C3 that will be set in advance
Scope is judged (step S7).
And, the position of the creased portion C3 for detecting in using setting position as the feelings outside the permissible range of benchmark
Under condition, position adjustments motor 651 is made to be driven to the direction of rotation for becoming setting position and carry out the position of creased portion C3
Correction (step S9) is put, end is processed.
In addition, the position of the creased portion C3 for detecting in using setting position as the feelings in the permissible range of benchmark
Under condition, directly terminate to process.
During sewing, control device 90 repeats these process with the tiny time cycle, thus to sewn object C
Edging width h and sewn object C creased portion C3 location-appropriate maintained.
[technique effect of first embodiment]
In sewing machine 10, feeding speed of the control device 90 to the first roller of the direction of feed upstream side of needle downing position to 31
Second roller in degree and direction of feed downstream is controlled to 32 feed speed and carries out the tension force control for sewn object C
System, therefore staff is independent of, tension force can be stably continuously applied to sewn object, can mitigate the burden of operator, and
Effectively suppress the generation reversed.
Further, since by the first roller to 31 and second roller the 32 couples of sewn object C are applied with tension force, it is right therefore, it is possible to reduce
The dependence of the technical ability of operator, and quality of sewing is stably maintained high-quality.
Further, since operator is unfettered, therefore, it is possible to concurrently be prepared other operations such as operation, seam can be made
The efficiency of manufacturing is improved.
In addition, sewing machine 10 the first roller to 31 and second roller to 32 between possess upper conveyor belt mechanism 40 and lower conveyor belt
Mechanism 50, therefore, it is possible to be subtracted by the adjustment of upper conveyor belt 411,421 and the conveyer belt transporting velocity of lower conveyor belt 511,521
The difference of the feed speed between fold back portion C1 and non-fold back portion C2 in few sewn object C, can carry out reversing less
The sewing of high-quality.
Also, side is swum in feed direction by above-mentioned upper conveyor belt mechanism 40 and downstream possesses the first upper conveyor belt mechanism 41
With the second upper conveyor belt mechanism 42, lower conveyor belt mechanism swims side in feed direction and downstream possesses the first lower conveyor belt mechanism
51 and the second lower conveyor belt mechanism 52, therefore also allow for the generation of the delay of sewn object C and fold back portion C1 can be realized
With the optimization of the feed speed of non-fold back portion C2, the sewing of the high-quality that can carry out reversing less.
In addition, sewing machine 10 possesses sewing width adjustment mechanism 60, control device 90 with based on as width detection portion
The detection edging width of fold back portion obtained from the detection of first and second position-detection sensor 661,662 is accordingly right
The shift action of first and second niproll 61,62 realized by roller travel mechanism 64 is controlled, therefore, it is possible to by edging width
Degree is maintained desired value and is sewed, and can carry out the edging sewing sewing of higher quality.
In addition, the position of control device 90 and fold back portion obtained from the detection based on second position detection sensor 662
The shift action for putting roller travel mechanism 64 accordingly to being realized by position adjusting mechanism 65 is controlled, therefore, it is possible to will be by
The creased portion C3 of sewing object C is maintained target location and is sewed, and can carry out the edging sewing sewing of higher quality.
[second embodiment]
Front view based on Fig. 9 is illustrated to the sewing machine 10A as second embodiment of the present invention.In the sewing
In machine 10A, to 10 identical structure of aforesaid sewing machine mark identical label and the repetitive description thereof will be omitted.
Additionally, in the explanation of following sewing machine 10A, mainly only illustrating to the aspect different from sewing machine 10.
With regard to the sewing machine 10 of first embodiment, direction of feed upstream side of the upper conveyor belt mechanism 40 by needle downing position
The first upper conveyor belt 411 and direction of feed downstream the second upper conveyor belt 421 and sewn object C is conveyed, pass down
First lower conveyor belt 511 of direction of feed upstream side of the tape-feed 50 by needle downing position and the second of direction of feed downstream
Lower conveyor belt 521 is conveyed to sewn object C.On the other hand, with regard to second embodiment sewing machine 10A upper conveyor belt
Mechanism 40A, from the upstream side of needle downing position to downstream by a upper conveyor belt 411A near the needle downing position from
Top is abutted with the sewn object on needle plate and is conveyed.
In addition, with regard to the lower conveyor belt mechanism 50A of sewing machine 10A, from the upstream side of needle downing position to downstream by
Abutted with the sewn object on needle plate through a lower conveyor belt 511A near needle downing position from below and conveyed.
That is, above-mentioned upper conveyor belt mechanism 40A possesses：Upper conveyor belt 411A；Upper conveyor belt motor (omit diagram), its into
For the driving source that upper conveyor belt 411A is conveyed to sewn object；Driving pulley (omits diagram), and it is electronic which is arranged at upper conveyor belt
The output shaft of machine；Tensioning wheel 414A, which throughout applies tension force to upper conveyor belt 411A；And two abutting belt wheel 415A, it
Upper conveyor belt 411A is abutted with sewn object side.
Upper conveyor belt 411A is endless loops conveyer belt, is configured to pass two abutting belt wheel 415A in the attached of needle downing position
Closely abut from top with the sewn object on needle plate.In addition, upper conveyor belt 411A is by upper conveyor belt motor, with stitched
The abutted position of thing processed is conveyed towards direction of feed downstream.
Two abutting belt wheel 415A are rotatably supported at the end and downstream of the direction of feed upstream side of cloth pressing 13
The end of side, is configured to upper conveyor belt 411A through the vicinity of needle downing position and the downside of cloth pressing 13.
Each tensioning wheel 414A is configured to from the inside or outside of which be tensioned and support in order to set up upper conveyor belt 411A, everywhere
Connect.
Lower conveyor belt mechanism 50A possesses：Lower conveyor belt 511A；Lower conveyor belt motor (omits diagram), and which is passed under becoming
Send the driving source conveyed to sewn object with 511A；Driving pulley (omits diagram), and which is arranged at the defeated of lower conveyor belt motor
Shaft；Tensioning wheel 514A, which throughout applies tension force to lower conveyor belt 511A；And two abutting belt wheel 515A, they make down
Conveyer belt 511A is abutted with sewn object side.
Lower conveyor belt 511A is endless loops conveyer belt, is configured to pass two abutting belt wheel 515A in the attached of needle downing position
Closely, and from its direction of feed upstream side abutted with the sewn object on needle plate to downstream from below.In addition, the lower transmission
Band 511A is conveyed towards direction of feed downstream in the abutted position with sewn object by lower conveyor belt motor.
Two abutting belt wheel 515A are independently configured the underface of two abutting belt wheel 415A in upper conveyor belt mechanism 40A
Position.Needle plate is formed with groove in the position that lower conveyor belt 511A is passed through, and two abutting belt wheel 515A can be pivotally supported around Y-axis
In air cylinder base 144.
Each tensioning wheel 514 is configured to be tensioned from the inside or outside of which to apply tension force to lower conveyor belt 511A everywhere
And abut.
In above-mentioned sewing machine 10A, it is impossible to carry out independent biography in the direction of feed upstream side and downstream of needle downing position
Band conveying is sent, but can be obtained in addition and 10 identical effect of sewing machine.
Additionally, in above-mentioned first and second embodiment, the sewing machine to being sewed by three suture needles is carried out
Illustrate, but be not limited to this, it is also possible to be applied to any sewing machine for possessing many suture needles more than or equal to two.
Claims (5)
1. a kind of sewing machine, the fold back portion of the end edge portion of sewn object is sutured by which to non-fold back portion,
The sewing machine is characterised by possessing：
Roller mechanism, the roller mechanism possess the first roller to, the second roller to and to first roller to second roller to independence
First and second feed motor for being driven, first roller is to entering in the sewn object relative to needle downing position
The sewn object is clipped up and down to direction upstream side and conveyed to direction of feed downstream, second roller is to relative to institute
The direction of feed downstream for stating the sewn object of needle downing position clips and the sewn object under the direction of feed up and down
The conveying of trip side；And
Control device, its control feed speed corresponding to first and second feed motor, carries out being stitched for described
The tension force of thing processed.
2. sewing machine according to claim 1, it is characterised in that
In first roller to, and second roller pair between, possessing：
Upper conveyor belt mechanism, which is contacted from top with the sewn object, by the sewn object to the direction of feed downstream
Conveying；And
Lower conveyor belt mechanism, which is contacted with the sewn object from below, by the sewn object to the direction of feed downstream
Conveying.
3. sewing machine according to claim 2, it is characterised in that
The upper conveyor belt mechanism has：First upper conveyor belt mechanism, which is in the feeding side relative to the needle downing position
Upper conveyor belt is provided with to the upstream side；And the second upper conveyor belt mechanism, which is in the feeding relative to the needle downing position
Direction downstream is provided with upper conveyor belt,
The lower conveyor belt mechanism has：First lower conveyor belt mechanism, which is in the feeding side relative to the needle downing position
Lower conveyor belt is provided with to the upstream side；And the second lower conveyor belt mechanism, which is in the feeding relative to the needle downing position
Direction downstream is provided with lower conveyor belt.
4. a kind of sewing machine, the fold back portion of the end edge portion of sewn object is sutured by which to non-fold back portion,
The sewing machine is characterised by,
There is sewing width adjustment mechanism, the sewing width in the direction of feed upstream side of the sewn object relative to needle downing position
Governor motion possesses：Turn back plate, and which is configured between the fold back portion and the non-fold back portion；First and second clamping
Roller, their described non-fold back portions and the fold back portion of downside from the upside for clipping the plate that turns back up and down；And roller
Travel mechanism, which can respectively around along orthogonal with the direction of feed by first niproll and second niproll
The centrage in direction is rotatably supported, and makes first niproll and second clamping along the centerline direction
Roller is moved to opposite direction each other,
The sewing machine possesses：
Width detection portion, the width in its direction orthogonal with the direction of feed to the fold back portion are detected；And
Control device, its detection width with the fold back portion detected by the width detection portion accordingly, to by institute
The shift action of described first and second niproll that Shu Gun travel mechanisms realize is controlled.
5. sewing machine according to claim 4, it is characterised in that
The sewing width adjustment mechanism possesses position adjusting mechanism, and the position adjusting mechanism is along orthogonal with the direction of feed
Direction is adjusted to the position of the fold back portion of the end edge portion of the sewn object.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-204168 | 2015-10-16 | ||
| JP2015204168A JP2017074269A (en) | 2015-10-16 | 2015-10-16 | sewing machine |
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|---|---|
| CN106592115A true CN106592115A (en) | 2017-04-26 |
Family
ID=58550459
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610899884.8A Withdrawn CN106592115A (en) | 2015-10-16 | 2016-10-14 | Sewing machine |
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| CN (1) | CN106592115A (en) |
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| CN114921911B (en) * | 2022-03-29 | 2024-02-27 | 上海鲍麦克斯电子科技有限公司 | Sewing machine capable of automatically identifying strand positions and control method |
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|---|---|---|---|---|
| CN109281077A (en) * | 2017-07-19 | 2019-01-29 | Juki株式会社 | Sewing machine |
| CN109281075A (en) * | 2017-07-19 | 2019-01-29 | Juki株式会社 | Sewing machine |
| CN109281075B (en) * | 2017-07-19 | 2023-03-28 | Juki株式会社 | Sewing machine |
| CN107740229A (en) * | 2017-11-27 | 2018-02-27 | 石柱土家族自治县西琴伞业有限公司 | Flatcar sewing machine umbrella cloth draw-gear |
| CN108130658A (en) * | 2017-12-28 | 2018-06-08 | 苏州匠博智能科技有限公司 | A kind of wrapped belt transmission and fin-folding mechanism |
| CN108130658B (en) * | 2017-12-28 | 2023-12-29 | 苏州匠博智能科技有限公司 | Wrapping band conveying and tail folding mechanism |
| CN110359185A (en) * | 2018-04-09 | 2019-10-22 | Juki株式会社 | Sewing system |
| CN110359185B (en) * | 2018-04-09 | 2022-06-24 | Juki株式会社 | Sewing system |
| TWI824120B (en) * | 2019-03-07 | 2023-12-01 | 日商大和縫紉製造股份有限公司 | Round fabric hem sewing machine |
| CN111926471A (en) * | 2019-05-13 | 2020-11-13 | Juki株式会社 | Needle feed sewing machine |
| CN111926471B (en) * | 2019-05-13 | 2023-09-05 | Juki株式会社 | Needle feeding sewing machine |
| CN113005650A (en) * | 2019-12-18 | 2021-06-22 | Juki株式会社 | Sewing system |
| CN113005650B (en) * | 2019-12-18 | 2023-07-25 | Juki株式会社 | Sewing system |
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