CN100480453C - Two needle sewing machine for angular seam - Google Patents
Two needle sewing machine for angular seam Download PDFInfo
- Publication number
- CN100480453C CN100480453C CNB031307418A CN03130741A CN100480453C CN 100480453 C CN100480453 C CN 100480453C CN B031307418 A CNB031307418 A CN B031307418A CN 03130741 A CN03130741 A CN 03130741A CN 100480453 C CN100480453 C CN 100480453C
- Authority
- CN
- China
- Prior art keywords
- arrow shaft
- grey cloth
- pin
- needle
- wire loop
- 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.)
- Expired - Fee Related
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Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B61/00—Loop holders; Loop spreaders; Stitch-forming fingers
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2207/00—Use of special elements
- D05D2207/02—Pneumatic or hydraulic devices
- D05D2207/04—Suction or blowing devices
Abstract
To provide a twin needle sewing machine for corner sewing capable of sewing without generating a crossing thread on an upper face of a fabric. The fabric is turned at the time of pausing of sewing by using right and left needles and a looper. When the fabric is sewed again after turning, a corner sewing is applied to the fabric. The twin needle sewing machine for corner sewing has an air blower which blows air to thread loops in a needle rear part so that the thread loops are separated from a looper orbit, and a hook for sliding the thread loops caught by the looper toward a looper base side. When the fabric is turned clockwise, the thread loops in a rear part of the right needle are separated from the looper orbit in a range from several stitches before turning of the fabric to several stitches after turning of the fabric. When the fabric is turned counterclockwise, the hook is advanced by several stitches before turning of the fabric, and the thread loops of the left needle caught by the looper are slid toward the looper base side and the thread loops of the left needle are caught by the right needle. The thread loops of the rear part of the left needle are separated from the looper orbit by several stitches after the turning of the fabric.
Description
Technical field
The present invention relates to angle seam 2 needle sewing machines, the Sewing machines of using during particularly about the formation double-locking needle tracking decorated in the inside of grey cloth.
Background technology
In the prior art, as angle seam 2 needle sewing machines, the technology of being showed in the clear 63-186688 communique of day open patent is for known.2 pins and arrow shaft about this Sewing machines has (Le-パ).These 2 pins are plugged in the cleansing pin line respectively, are run through needle plate.Arrow shaft along the pin penetration of needle plate from right-hand advance and retreat.In this Sewing machines, constitute the wire loop that arrow shaft seizure is formed at the pin rear portion.Make the operator, in case when making of being undertaken by left and right sides pin and arrow shaft stops, the rotation grey cloth is made by grey cloth is postrotational again, carries out angle seam on this grey cloth.In addition, this Sewing machines can be formed on the needle tracking that the grey cloth table back side is decorated.In this Sewing machines,, can form the double-locking needle tracking as not using the facial ornament line.
But, while as forming the double-locking needle tracking, carry out angle seam, as shown in figure 19 with 2 needle sewing machines with existing angle seam, on grey cloth W, the lap of the first needle tracking S1 and the second needle tracking S2 promptly overlaps line PT and becomes very showy, is damaged as the aesthetics of sewings.
Summary of the invention
Thereby problem of the present invention, its purpose promptly are to be provided at angle seam 2 needle sewing machines that do not produce the overlap joint line above the grey cloth.
For achieving the above object, angle seam provided by the present invention 2 needle sewing machines have the left and right sides pin plugging in the cleansing pin line respectively and run through needle plate and the arrow shaft along the pin penetration of needle plate from right-hand advance and retreat; Catch the wire loop at the rear portion be formed at pin by arrow shaft,, on this grey cloth, carry out angle seam by postrotational the making again of grey cloth in case grey cloth is rotated in making of being undertaken by described pin and arrow shaft; It is characterized in that, this Sewing machines also has the blowing of the wire loop at the rear portion that is formed at described pin, make hair-dryer that this wire loop breaks away from from the track of arrow shaft and can advance and retreat slide into the hook of the base portion side of arrow shaft towards arrow shaft configuration and wire loop that arrow shaft is caught; Make grey cloth when clockwise direction rotates, the severals pins before grey cloth rotation make hair-dryer work to the postrotational several pins of grey cloth, make the track disengaging from arrow shaft of the wire loop that is formed at right pin rear portion with this; When making grey cloth to counter rotation, before several pins of grey cloth rotation, hook is advanced, make the wire loop of the left pin that arrow shaft catches slide into the base portion side of arrow shaft, simultaneously catch this left side needlework ring with right pin, then, make hair-dryer work to the postrotational several pins of grey cloth, the wire loop that is formed at left pin rear portion is broken away from from the track of arrow shaft.
And preferably, hair-dryer is configured to and can slides to the left and right, the direction of rotating according to grey cloth changes the attached position of blowing of hair-dryer.
As according to the present invention, make grey cloth when clockwise direction rotates, make hair-dryer work by number pin before grey cloth rotation to grey cloth rotation back number pin, the wire loop that is formed at right pin rear portion is broken away from from the track of arrow shaft.Thus, postrotational several pins, can on grey cloth, form the double-locking needle tracking to grey cloth at the several pins before the grey cloth rotation in left pin side.In addition, in the time will making grey cloth, before severals pins of grey cloth rotation, hook is advanced, make of the base portion side slip of the wire loop of the left pin that arrow shaft catches, simultaneously, catch left needlework ring with right pin to arrow shaft to counter rotation.Then,, make hair-dryer work, the wire loop that is formed at left pin rear portion is broken away from from the track of arrow shaft to the postrotational several pins of grey cloth.Thus, between postrotational several pins, form the double-locking needle tracking to grey cloth in right pin side, on grey cloth at several pins from the grey cloth rotation.
In addition,, can dispose hair-dryer to the left and right slidably, so can change the attached position of blowing of hair-dryer according to the direction of rotation of grey cloth as according to the present invention.
Description of drawings
Fig. 1 is that expression is applicable to that angle seam of the present invention wants portion's stereogram with 2 needle sewing machines.
Fig. 2 is the perspective illustration of the needle plate shape of the aforementioned Sewing machines of expression.
Fig. 3 is the stereogram of expression by first process of the angle seam operation that aforementioned Sewing machines carried out.
Fig. 4 is the stereogram of expression by second process of the angle seam operation that aforementioned Sewing machines carried out.
Fig. 5 is the stereogram of expression by the 3rd process of the angle seam operation that aforementioned Sewing machines carried out.
Fig. 6 is the stereogram of expression by the 4th process of the angle seam operation that aforementioned Sewing machines carried out.
Fig. 7 is the stereogram of expression by the 5th process of the angle seam operation that aforementioned Sewing machines carried out.
Fig. 8 is the general view of the flat state of aforementioned the 5th process of expression.
Fig. 9 is the general view of expression by the 6th process of the angle seam operation that aforementioned Sewing machines carried out.
Figure 10 is the general view of expression by the 7th process of the angle seam operation that aforementioned Sewing machines carried out.
Figure 11 is the stereogram of expression by another first process of the angle seam operation that aforementioned Sewing machines carried out.
Figure 12 is the stereogram of expression by another second process of the angle seam operation that aforementioned Sewing machines carried out.
Figure 13 is the stereogram of expression by another the 3rd process of the angle seam operation that aforementioned Sewing machines carried out.
Figure 14 is the stereogram of expression by another the 4th process of the angle seam operation that aforementioned Sewing machines carried out.
Figure 15 is the stereogram of expression by another the 5th process of the angle seam operation that aforementioned Sewing machines carried out.
Figure 16 is the general view of the flat state of aforementioned another the 5th process of expression.
Figure 17 is the general view of expression by another the 6th process of the angle seam operation that aforementioned Sewing machines carried out.
Figure 18 is the general view of expression by another the 7th process of the angle seam operation that aforementioned Sewing machines carried out.
The general view of the machining state of Figure 19 angle seam operation that to be expression undertaken by existing Sewing machines.
The specific embodiment
Below with description of drawings example of the present invention.Fig. 1 has been to use angle seam of the present invention to want portion's stereogram with 2 needle sewing machines.On the cylinder head 1 of this Sewing machines, have can be up and down before and after four-way motion and the arrow shaft 3 of shaking, the needle plate 5 (with reference to Fig. 2) that is fixed in screwed hole 4 along the feeding tooth 2 of arrow F direction feeding grey cloth, in the direction of intersecting with grey cloth direction of feed F.Above cylinder head 1, disposing and passing through the shank 9 that left pin 6 and right pin 7 are installed in pin strain 8.Each pin 6,7 extends downwards, and its point runs through needle plate 5 by moving up and down of shank 9.Pin penetration 5a, the 5a of needle plate 5 as shown in Figure 2, are in along the base portion side of the needle board claw 5b of grey cloth direction of feed F extension.
The left side of the feeding tooth 2 on Fig. 1, promptly in the front of cylinder head 1, have the hook 15 that wire loop that arrow shaft 3 is caught slides.This hook 15 can be supported on the 1a of ditch portion that forms on the cylinder head 1 slidingly.The base end side of hook 15 has jut 15a, and this jut 15a is matched with two gangs of 16a of portion that form on an end of bell crank lever 16.Bell crank lever 16 is fixed on the cylinder head 1 rotationally by screw 17 with the level.
Cylinder 18 in the front-end configuration of cylinder head 1.On the piston rod 18a of cylinder 18, be installed with and make moving plate 19.This makes moving plate 19 is linked to bell crank lever 16 by band stepped screw 20 slotted hole 16b.Doing the installation site of moving plate 19 relative piston rod 18a can be regulated by nut 21.Cylinder 18 is connected in the source of high pressure air (not shown) by managing 22.Air Force by source of high pressure air is come is advanced and retreat the moving plate 19 of doing of piston rod 18a front end in the direction of arrow A, and bell crank lever 16 is that rotate at the center with band stepped screw 17 promptly, and hook 15 slides in the direction of arrow B.
Disposing hair-dryer 23 at the rear of cylinder head 1.The leading section of this hair-dryer 23 enters the inside of cylinder head 1 by ditch hole 16.The blow-off outlet of hair-dryer 23 is during rising, facing to the wire loop of pin rear portion formation, towards arrow shaft 3 lateral blowings.In addition, this hair-dryer 23 is installed on the carriage 24, and carriage 24 is fixed on the piston rod (not shown) of blade type cylinder.When the piston rod of blade type cylinder was advanced and retreat, hair-dryer 23 i.e. side-to-side movement in the direction of arrow C.Thus, can change the attached position of blowing of hair-dryer.And for preventing to feed to sewing of lubricating oil in the cylinder head 1, ditch hole 1b also has oil scraper ring member (not shown) with seam.
Secondly, the action of above-mentioned Sewing machines can be illustrated with reference to Fig. 3～Figure 17.In this Sewing machines, the grey cloth W that is pressed on needle plate 5 by the pressing plate (not shown) by feeding tooth 2 along the feeding of arrow F direction, as shown in Figure 3, by needlework 12,13 and the arrow shaft line 14 of the eyelet 3a of line hole 6a, 7a by pin 6,7 and arrow shaft 3 form to number needle tracking (first needle tracking) S1 of 406 expressions respectively.
When grey cloth W was rotated in the direction of the clock, as shown in Figure 4, the several pins before the grey cloth rotation changed to right pin 7 one sides with the attached position of blowing of hair-dryer 23, make hair-dryer 23 work.Hair-dryer 23 1 work, the wire loop that is formed at the rear portion of right pin 7 during rising becomes the state that breaks away from from the track of arrow shaft 3.Thereby, as this state arrow shaft 3 from right-hand turnover, as shown in Figure 5, arrow shaft 3 is caught less than the wire loop that is formed at right pin rear portion, and only can capture the wire loop that left pin rear portion forms.Then, the left pin 6 that descends through top dead-centre enters into by the arrow shaft 3 that retreats to left, arrives the arrow shaft line 14 of grey cloth W and the formed triangle of wire loop 12L of the left pin that arrow shaft 3 is caught from the eyelet 3a of arrow shaft 3.Thereafter, the arrow shaft line 14a in aforementioned triangle as shown in Figure 6, is caught by left pin 6.At this moment, right pin 7 just runs through grey cloth W simply.
As at this state-driven Sewing machines, as shown in Figure 7, promptly on grey cloth W, form to number the needle tracking Sa of 401 expressions by the needlework 12 of the line hole 6a that inserts logical left pin 6 and the arrow shaft line 14 of the eyelet 3a that inserts logical arrow shaft 3.Then, be in the top dead-centre state at pin 6,7, stop (with reference to Fig. 8) after the driving of Sewing machines, with the base end part SS of needle tracking for to make grey cloth W rotate predetermined angular (with reference to Fig. 9) to clockwise direction with the center.After this rotation, grey cloth W is pressed on needle plate 2, begins making of Sewing machines again by the pressing plate (not shown).At this moment, work at number pin chien shih hair-dryers 23, the base end part SS that makes the needle tracking Sa of numbering 401 be connected in needle tracking is formed on the grey cloth W., make hair-dryer 23 stop blowing, as shown in figure 10, then form 406 needle tracking (second needle tracking) S2 of being numbered originally thereafter.Thus, for the corner surface of needle tracking, only the residual sewing line (being numbered 401 needle tracking Sa, Sa) in the outside does not produce the overlap joint line.
In addition, make grey cloth W when inhour is rotated, when before the grey cloth rotation, counting pin, arrow shaft 3 turnover, making hook 15 actions.Thus, as shown in figure 11, slide into the base end side of arrow shaft 3 by each wire loop 12L, 13L of arrow shaft 3 seizure.Then, arrow shaft 3 through the left pin 6 that top dead-centre descends, enters into the triangle that the wire loop 12L by arrow shaft 3, the left pin of being caught from the eyelet 3a of arrow shaft 3 to arrow shaft line 14 and the arrow shaft 3 of grey cloth W forms when left retreats.At this moment, right pin 7 is caught the wire loop 12L of the left pin of being caught by arrow shaft 3, simultaneously, enters the formed triangle of wire loop 13L by arrow shaft 3, the arrow shaft line 14 from the eyelet 3a of arrow shaft 3 to grey cloth W and the right pin of being caught by arrow shaft 3.The wire loop 12L of the left pin that right pin 7 is caught when each pin 6,7 descends, deviates from from the arrow shaft 3 that retreats, and the wire loop 12LL of the left pin of deviating from from arrow shaft 3 as shown in figure 12, is lifting to grey cloth W side at the state of being caught by right pin 7.
, make the blowing of hair-dryer 23 attached position change to left pin 6 sides, make hair-dryer 23 work thereafter.Hair-dryer 23 1 work, the wire loop that forms at left pin 6 rear portions during rising the state that breaks away from from the track of arrow shaft 3.Thereby from right-hand turnover, as shown in figure 13, the wire loop that is formed at right pin rear portion is promptly caught by arrow shaft 3 this state such as arrow shaft 3, and the wire loop that is formed at left pin rear portion is not caught for arrow shaft 3.The pin 6,7 that descends through top dead-centre as shown in figure 14, then enters the formed triangle of wire loop 13L by the arrow shaft 3 that retreats into left, the right pin of catching from the eyelet 3a of arrow shaft 3 to arrow shaft line 14 and the arrow shaft 3 of grey cloth W.As at this state-driven Sewing machines, as shown in figure 15, insert the needlework 13 of the line hole 7a that leads to right pin 7 and the arrow shaft line 14 of the eyelet 3a of slotting logical arrow shaft 3 and promptly on grey cloth W, form to number the 401 needle tracking Sa that represent.
Then, being in the top dead-centre state at pin 6,7, stopping (with reference to Figure 16) after the driving to Sewing machines, is the center with the base end part SS of needle tracking, makes grey cloth W only rotate the angle (with reference to Figure 17) of regulation to counter-clockwise direction.After grey cloth W rotation, with the pressing plate (not shown) grey cloth is pressed on the needle plate 2, begin making of Sewing machines again.At this moment, continue the work of hair-dryer 23 between the number pin, linking to each other with the base end part SS of needle tracking on grey cloth W forms the needle tracking Sa that numbering 401 is represented., stop the air-supply of hair-dryer 23 thereafter, as shown in figure 18, then form originally to number the needle trackings (second needle tracking) of 406 expressions.Thus,, only stay sewing line (number table is shown 401 needle tracking Sa, Sa), do not produce the overlap joint line in the outside for the corner surface of needle tracking.
In the present embodiment, hook 15 makes each wire loop 12L, 13L slide into the base portion side of arrow shaft 3, but also is not limited only to like this, also can catch the wire loop 12L of left pin, only the wire loop 12L of left pin be slided with the right pin 7 that descends.In addition, in the present embodiment, the grey cloth anglec of rotation is 90 °, but also is not limited only to this, also can carry out with angle arbitrarily.Moreover, in the present embodiment, be to carry out the change that hair-dryer blows attached position with the blade type cylinder, also be not limited only to this, also can touch switch or manual operation is carried out by foot pedals or knee.
As mentioned above, as according to the present invention,, make sewings become attractive in appearance owing on the corner surface of the needle tracking that forms on the grey cloth, can not produce the overlap joint line.Particularly, because when making grey cloth, make the wire loop of the left pin of catching by arrow shaft before severals pins of grey cloth rotation slide into the base portion side of arrow shaft, simultaneously, catch left needlework ring, not the bight generation off-line of the needle tracking that can form from grey cloth with right pin to counter rotation.In addition, owing to can change the attached position of blowing of hair-dryer, can reduce the part number of configuration in the Sewing machines corresponding to the direction of rotation of grey cloth.
Claims (2)
1. angle seam 2 needle sewing machines, described Sewing machines have the left and right sides pin plugging in the cleansing pin line respectively and run through needle plate and the arrow shaft along the pin penetration of needle plate from right-hand advance and retreat; Catch the wire loop at the rear portion be formed at pin by arrow shaft,, on this grey cloth, carry out angle seam by postrotational the making again of grey cloth in case grey cloth is rotated in making of being undertaken by described pin and arrow shaft; It is characterized in that,
This Sewing machines also has the blowing of the wire loop at the rear portion that is formed at described pin, make hair-dryer that this wire loop breaks away from from the track of arrow shaft and can advance and retreat slide into the hook of the base portion side of arrow shaft towards arrow shaft configuration and wire loop that arrow shaft is caught;
Make grey cloth when clockwise direction rotates, the severals pins before grey cloth rotation make hair-dryer work to the postrotational several pins of grey cloth, make the track disengaging from arrow shaft of the wire loop that is formed at right pin rear portion with this;
When making grey cloth to counter rotation, before several pins of grey cloth rotation, hook is advanced, make the wire loop of the left pin that arrow shaft catches slide into the base portion side of arrow shaft, simultaneously catch this left side needlework ring with right pin, then, make hair-dryer work to the postrotational several pins of grey cloth, the wire loop that is formed at left pin rear portion is broken away from from the track of arrow shaft.
2. the angle seam of recording and narrating by claim 12 needle sewing machines is characterized in that, can dispose hair-dryer slidingly, and change the attached position of blowing of hair-dryer corresponding to the direction of rotation of grey cloth.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002138586A JP3845335B2 (en) | 2002-05-14 | 2002-05-14 | 2-needle sewing machine for corner stitching |
| JP138586/2002 | 2002-05-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1458313A CN1458313A (en) | 2003-11-26 |
| CN100480453C true CN100480453C (en) | 2009-04-22 |
Family
ID=29416868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031307418A Expired - Fee Related CN100480453C (en) | 2002-05-14 | 2003-05-13 | Two needle sewing machine for angular seam |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1367168B1 (en) |
| JP (1) | JP3845335B2 (en) |
| CN (1) | CN100480453C (en) |
| AT (1) | ATE302299T1 (en) |
| TW (1) | TW576442U (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5941271B2 (en) * | 2011-11-24 | 2016-06-29 | ペガサスミシン製造株式会社 | Pseudo double ring seam structure and multi-needle sewing machine forming the seam |
| CN103590201A (en) * | 2012-08-13 | 2014-02-19 | 顾飞龙 | Method for avoiding residual thread ends in sewing of overcast stitching machine |
| CN103911774A (en) * | 2013-01-06 | 2014-07-09 | 顾飞龙 | Sewing thread turn sewing method for sewing machine |
| JP2016202723A (en) * | 2015-04-27 | 2016-12-08 | Juki株式会社 | sewing machine |
| CN107723945A (en) * | 2017-10-18 | 2018-02-23 | 杰克缝纫机股份有限公司 | A kind of double needle machine turning sews control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0019048A1 (en) * | 1979-05-16 | 1980-11-26 | Dürkoppwerke Gmbh | Sewing machine for ornamental seams |
| CN86104982A (en) * | 1985-09-03 | 1987-03-04 | 三菱电机有限公司 | Two pin apparatus for sewing |
| EP0512145A1 (en) * | 1991-05-10 | 1992-11-11 | Dürkopp Adler Aktiengesellschaft | Method for producing a seam which changes direction |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63186688A (en) * | 1987-01-29 | 1988-08-02 | ペガサスミシン製造株式会社 | Sewing method of flat stitch sewing machine |
| JPH11276752A (en) * | 1998-03-29 | 1999-10-12 | Brother Ind Ltd | Sewing machine |
-
2002
- 2002-05-14 JP JP2002138586A patent/JP3845335B2/en not_active Expired - Fee Related
-
2003
- 2003-04-14 TW TW092205803U patent/TW576442U/en not_active IP Right Cessation
- 2003-04-22 AT AT03009182T patent/ATE302299T1/en not_active IP Right Cessation
- 2003-04-22 EP EP03009182A patent/EP1367168B1/en not_active Expired - Lifetime
- 2003-05-13 CN CNB031307418A patent/CN100480453C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0019048A1 (en) * | 1979-05-16 | 1980-11-26 | Dürkoppwerke Gmbh | Sewing machine for ornamental seams |
| CN86104982A (en) * | 1985-09-03 | 1987-03-04 | 三菱电机有限公司 | Two pin apparatus for sewing |
| EP0512145A1 (en) * | 1991-05-10 | 1992-11-11 | Dürkopp Adler Aktiengesellschaft | Method for producing a seam which changes direction |
Also Published As
| Publication number | Publication date |
|---|---|
| TW576442U (en) | 2004-02-11 |
| EP1367168B1 (en) | 2005-08-17 |
| CN1458313A (en) | 2003-11-26 |
| JP3845335B2 (en) | 2006-11-15 |
| EP1367168A1 (en) | 2003-12-03 |
| ATE302299T1 (en) | 2005-09-15 |
| JP2003326004A (en) | 2003-11-18 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090422 Termination date: 20130513 |