CN101387048B

CN101387048B - Sewing machine for buttoning

Info

Publication number: CN101387048B
Application number: CN2008101704730A
Authority: CN
Inventors: 植田昌彦; 小田洋
Original assignee: Juki Corp
Current assignee: Juki Corp
Priority date: 2001-11-30
Filing date: 2002-12-02
Publication date: 2012-06-27
Anticipated expiration: 2022-12-02
Also published as: CN101387048A; CN100469965C; KR20030044874A; KR100986854B1; JP2003164679A; JP3868805B2; CN1504596A

Abstract

A sewing machine 1 for buttoning is provided with a needle bar stroke mechanism 10 for vertically stroking a needle 5, a needle bar rock mechanism 11 for horizontally rocking the needle 5, a button feed mechanism 30 for longitudinally feeding buttons 200, a cloth feed mechanism 50 for longitudinally feeding cloth 300, a controller 150 for controlling the needle bar stroke mechanism 10, the needlebar rock mechanism 11, the button feed mechanism 30 and the cloth feed mechanism 50. The controller 150 controls the cloth feed mechanism 50 so as to make the pitch Pa in the area A and that Pc in the area C smaller than that Pb in the area B in the buttoning operation. The sewing machine for buttoning has a beautiful appearance along with higher productivity and reduces the amount of thread.

Description

Sewing machine for buttoning

The application be that December 2, application number in 2002 are 021548382 the applying date, name is called the dividing an application of application of " sewing machine for buttoning ".

Technical field

The present invention relates to a kind of making under flat condition and be under the state of having hanged at the button on the cloth with seam button tailor's tack between button hole and the cloth, opposite joint button line imposes on around buckleing the sewing machine for buttoning that knot is made with making in a zigzag.

Background technology

As everyone knows, in the past, the sewing machine for buttoning that after stitching a button on the cloth, around the seam button line that is connected in button and cloth, winds the line was arranged.Shown in figure 13; Sewing machine for buttoning; Button 500 nail in 501 last times of cloth; With about two groups of seam button lines 502,503 arranged side by side is connected the hole of button 500 with cloth 501, and the eedle that swings when being used in coiling makes it stride across seam to detain method enforcement of line 502,503 and make around buckleing to tie.Button 500 is placed on the cloth 501, and keeps from the state of cloth 501 protrusions.

But,, then just make and move, and the local considerably less part of the number of turns of making around the button knot can form ugly the making of outward appearance around the button knot if the number of turns of making around the button knot is few.And, can not keep stitching button line 502,503 with respect to the state that cloth 501 has hanged, make button 500 paste cloth 501, thereby reduced the quality of sewings.In order following closely button 500 on cloth 501, just must to increase around detaining and tie the number of turns of making to use to make to tie seam button line 502,503 and maintain the state ground that the protrusion that contact with cloth 501 comes out to button 500 tight around button knot.But one increases the number of turns of making around the button knot, has just increased the use amount of suture.And the number of turns is many, has then prolonged with nail catcher to make relevant operation around the button knot, and has reduced its productivity ratio.

Therefore, the objective of the invention is to implement both to reduce the use amount of suture, boost productivity again, and have the nail catcher of aesthetic property.

Patent documentation 1:JP4-17883A

Patent documentation 2:JP1-91893A

Summary of the invention

In order to address the above problem, the present invention's 1 invention is for example like Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 7 and shown in Figure 8; Be a kind of under the state that keeps flat button 200; Between buttonhole and cloth 300 with seam button line (for example a left side seam buckle line 205 and right seam buckle line 206) Button nail on cloth, then, opposite joint button line is made to impose on around buckleing with zigzag and is tied the sewing machine for buttoning of making 1 under the state that button is stood; It is characterized in that having:

Move the relative position of above-mentioned eedle and button and cloth relative moving mechanism (for example shank wabbler mechanism 11, send deduction structure 30 and cloth feeding mechanism 50),

Stitching when the button knot is made; Control above-mentioned relative moving mechanism, make the above-mentioned first area in the second area (for example regional A or regional F) of the first area that is divided into the button side between button and the cloth (for example zone C or region D), cloth side and other the 3rd zone (for example area B or area E) and/or second area around the density of button knot suture the big controlling organization (for example control device 150) of density around button knot suture than above-mentioned the 3rd zone.

In the present invention's 1 described invention, use the method that relatively moves above-mentioned eedle and button and cloth position by relative moving mechanism, on seam button line, implement to make around buckleing knot.At this and since first area and/or second area around the density of button knot suture than the 3rd zone to tie suture density around button big, so; On first area and/or second area, seam button line around many around buckleing the knot suture, when in the first area many around the time, just increase around of the friction of button knot suture with seam button line; Can and can not support seam securely and buckle line around button knot suture from the line landing of seam button; In addition, when second area many around the time, by supporting seam button line securely around button knot suture.On the other hand, in the 3rd zone, control is used the line amount around button knot suture, and can realize shortening the time of making around the button knot.Promptly; Because it is many around tying suture and strengthen density near cloth or button around button; So can keep fully stitching the state that the button line has hanged with respect to cloth, and implement to have the nail catcher of aesthetic property, and; Since near middle around button knot suture around getting less and density is little, so can reach the purpose of boosting productivity and reducing use cost.

In addition, the ratio in first area, second area and the 3rd zone is not defined, and can be various, for example, can be assigned as from the order of first area: 1:1:3, or 2:2:1, or 2:3:5 etc.In addition, during a side in not having first area and second area at least, when for example not having second area, first area and the 3rd zone be by the ratio division of regulation, also can be for example be assigned to from the order of first area: 3:7,7:3 etc.In addition, to there is no need be ratio of integers to its ratio.

2 invention according to the present invention is in the present invention's 1 described sewing machine for buttoning, it is characterized in that:

Above-mentioned controlling organization; Control above-mentioned eedle up-down mechanism and above-mentioned relative moving mechanism; The method of the spacing that the zigzag of making around button knot with change is made, make above-mentioned first area and/or second area around the button knot make density than above-mentioned the 3rd zone to make density around the button knot big.

2 described inventions according to the present invention; Since near button and/or cloth to make spacing little; And near the spacing the pars intermedia of button and cloth is big; So near button and/or the cloth on seam button line around buckle the knot suture around many, on the contrary, near the seam button line pars intermedia, tie suture around lacking around buckleing.That is, obtained same effect with the present invention's 1 said invention.

The present invention's 3 described inventions are in the present invention's 2 described sewing machine for buttoning, it is characterized in that:

Above-mentioned making around the button knot is between button and cloth, to form with making to move back and forth to make in a zigzag,

Above-mentioned controlling organization, the spacing change of location of control when from the button to the cloth, making makes the spacing change of location when cloth expects that button is made different.

3 described inventions according to the present invention, for example, when cloth expects that button is made; Reduced ratio with respect to the pars intermedia of button and/or cloth environs; And near button and/or cloth on a large scale in reduced spacing, and on seam button line, carrying out securely making near button and/or the cloth, on the other hand around buckle to tie; When from the button to the cloth, making; Increase is with respect to the ratio of the pars intermedia of button and/or cloth environs, and in the increasing spacing on a large scale of pars intermedia, can carry out making of pars intermedia fast.Therefore, can reach both fully to have kept stitching and detain the hanged state of line, can boost productivity and reduce the purpose of suture use cost again with respect to cloth.

The present invention's 4 described inventions;, be under the state that keeps flat button 200 for example like Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 7 and shown in Figure 8, between buttonhole and cloth 300 with seam button line (for example a left side seam buckle line 205 and right the seam buckled line 206) Button nail on cloth; Then; Opposite joint button line applies around buckleing the sewing machine for buttoning 1 that knot is made with making in a zigzag under the state that stands button, it is characterized in that having:

Control above-mentioned relative moving mechanism and make above-mentioned eedle detain the controlling organization that descends at least in the line once at seam.

At this, so-called " in the seam button line " is meant " seam the buckle in the line group " that be made up of many seam button lines, and, when having a plurality of seam button line group, be meant " in the seam button line group " and " seam is buckled the line group and stitched and buckle between the line group ".

4 described inventions according to the present invention, because the eedle that in seam button line, descended at least a time, so prevented to make skew because of the suture that has passed through seam button line makes around buckleing knot.That is, prevent near button or cloth to draw seam button line to make to squint around buckle the pars intermedia that knot makes to buttonhole and cloth because of stretching of reeling around button knot suture.Therefore, kept the hanged state of seam button line, and kept having the nail catcher of aesthetic property with respect to cloth.

The present invention's 5 described inventions are in the present invention's 4 described sewing machine for buttoning, it is characterized in that:

Above-mentioned controlling organization is controlled near the seam button line of above-mentioned eedle button and/or cloth and is descended.

5 described inventions according to the present invention form making around buckleing to tie of button side by what pass seam button line around buckle the knot suture, can prevent to squint to the pars intermedia of buttonhole and cloth.Therefore, can keep nail catcher with aesthetic property.

6 described inventions according to the present invention, because the eedle that in seam button line, descended at least a time, so prevented to make skew because of the suture that passes seam button line makes around buckleing knot.That is, prevent near button or cloth, to draw seam button line, make pars intermedia skew to buttonhole and cloth and make around detaining knot because of stretching of coiling around button knot suture.Therefore, kept the hanged state of seam button line, and kept having the nail catcher of aesthetic property with respect to cloth.

Technical scheme of the present invention is:

The first, a kind of sewing machine for buttoning; This sewing machine for buttoning is to make under flat condition be under the state of having hanged at the button on the cloth with seam button tailor's tack between button hole and the cloth; Opposite joint button line imposes on around buckleing the sewing machine for buttoning that knot is made with making in a zigzag; It is characterized in that; Have: have the shank wabbler mechanism, send deduction structure and cloth feeding mechanism and move the relative moving mechanism of the relative position of said eedle and button and cloth; And controlling organization; This controlling organization with, when button knot is made, control said relative moving mechanism, make the first area that is being divided into the button side between button and cloth and the second area of, cloth side around the density of button knot sewing line than between first area and second area and the said first area in other the 3rd zone and/or said second area control said relative moving mechanism around the density of button knot sewing line than the big mode of density of tying sewing line around button in said the 3rd zone.

The second, a kind of sewing machine for buttoning; This sewing machine for buttoning be make under flat condition between button hole and the cloth with about seam button tailor's tack be under the state of having hanged at the button on the cloth; To about seam button line tie the sewing machine for buttoning made from making in a zigzag to impose on around buckle; It is characterized in that; Have: have the shank wabbler mechanism, send deduction structure and cloth feeding mechanism and move said eedle and the relative position of button and cloth relative moving mechanism, control said relative moving mechanism with the pin mode once that between near the seam button line the cloth, about said, falls at least, make it detain line decline pin controlling organization once at seam at least.

Description of drawings

Fig. 1 is applicable to the summary outward appearance of sewing machine for buttoning of the present invention and the control system diagram of this Sewing machines.

Fig. 2 is the up and down stereogram of the specific embodiment of actuation mechanism and needle bar swinging mechanism of eedle.

Fig. 3 is to be the stereogram of master's specific embodiment with button travel mechanism.

Fig. 4 is the stereogram of the specific embodiment of cloth feeding mechanism.

Fig. 5 is the specific embodiment of cloth feeding mechanism, and removes the side view of a part of parts.

Fig. 6 is that the position relation with button and cloth when nail catcher is made is master's a side view.

Fig. 7 concerns to be master's vertical view in the position with button and cloth when the button knot is made.

Fig. 8 is the skeleton diagram that is divided into seam into and returns seam making around button knot.

Fig. 9 is the practical implementation illustration that is shown in the picture on the display unit.

Figure 10 is the flow chart of the processing procedure of control device.

Figure 11 is that the state with the button after button knot is made, seam button line is master's a side view.

Figure 12 is used to explain descend one time sketch map of eedle.

Figure 13 is used to explain in the past around the sketch map of detaining the tie lines mark.

Among the figure: 1-Sewing machines (sewing machine for buttoning), 5-Sewing needles (eedle), 10-eedle up-down mechanism, 11-needle bar swinging mechanism (relative moving mechanism); 30-send deduction structure (relative moving mechanism), 50-cloth feeding mechanism (relative moving mechanism), 100-button travel mechanism; 150-control device (controlling organization), 200-button, 201,202,203,204-hole; 205-left side seam button line, 206-right seam button line, A, F-zone (second area); B, E-zone (the 3rd zone), C, D-zone (first area), Pa, Pb, Pc, Pd, Pe, Pf-spacing.

The specific embodiment

Below, with reference to description of drawings specific embodiment of the present invention.But scope of invention is not limited to example among the figure.

As shown in Figure 1; Sewing machines 1, the eedle 5 of the bottom that have board portion 2, uprightly be located at vertical main body section 3 on the rearward end of board portion 2, the shank 9 that stretches out from the slightly parallel chain-drive section that stretches out of the top and the board portion 2 of vertical main body section 34, from the leading section of chain-drive section 4 downwards, is installed in shank 9, be located at eedle 5 in the board portion 2 under rotating shuttle (omitting diagram) and the control device 150 of controlling Sewing machines 1 integral body.

Sewing machines 1 is to use the eedle that moves up and down with shank 95 and the co-operating of rotating shuttle automatically to go up the Sewing machines of buttoning button at cloth (that is sewn object).Be well-known technology, its detailed description of Therefore, omited owing to use the action of rotating shuttle and eedle 5 to form to make.

Like Fig. 2 and shown in Figure 3; Sewing machines 1; Has driving (promptly with the eedle up-down mechanism of the moving up and down eedle 5 of the shank that can move up and down neatly 9; The eedle device that moves up and down) 10 the needle bar swinging mechanism (that is relative moving mechanism) 11 that eedle 5 swung to the left and right with the eedle 5 of shank 9 one startings of swing to the left and right.

Eedle up-down mechanism 10 has the main shaft 7 of the power of Spindle Motor 14 as drive source, transmission main shaft motor 14, the crank mechanism 18 of using the power that transmits through main shaft 7 that shank 9 is moved up and down.Spindle Motor 14 is fixed in the Sewing machines.Main shaft 7 is fixed on the driving output shaft of Spindle Motor 14.Main shaft 7 extends forwards, backwards, and can be supported in rotationally in the chain-drive section 4 flexibly through bearing 7a.Crank mechanism 18 is connected on the leading section of main shaft 7.Crank mechanism 18 is connected with shank 9.Shank 9, intermediate portion and top can be propped up slidably flexibly up and down with respect to shank swing seat 6 and is held on the shank swing seat 6.

Eedle up-down mechanism 10 according to above-mentioned formation; In case Spindle Motor 14 actions and main shaft 7 rotate; Then the power of Spindle Motor 14 is just given shank 9 through main shaft 7 and crank mechanism 18 transmissions, and converts rotatablely moving of main shaft 7 into shank 9 move up and down through crank mechanism 18.Like this, eedle 5 moves up and down with shank 9.And; The control of Spindle Motor 14 controlled devices 150; And on Spindle Motor 14, be provided with the encoder 157 (shown in Figure 1) of the anglec of rotation or the actuating speed that are used to detect Spindle Motor 14, and control device 150 usefulness encoders 157 can be confirmed the anglec of rotation or the actuating speed of Spindle Motor 14.

Needle bar swinging mechanism 11 is so that eedle 5 is swung with shank 9 to the left and right, decide left and right directions (that is, with fore-and-aft direction intersect crisscross) on the mechanism of needle downing position (down position) of eedle 5.Needle bar swinging mechanism 11, have shank rotary actuator 20 as drive source, transmit the power of shank rotary actuator 20 first connecting rod 24, second connecting rod 23, third connecting rod 22, shank swing arm 12 and swing arm 13, make shank swing that shank 9 swing to the left and right 6 by the power that transmits from swing arm 13.Shank rotary actuator 20 is fixed on Sewing machines 1 inside.On the driving output shaft of shank rotary actuator 20, fixing an end of first connecting rod 24.First connecting rod 24 can be installed on the second connecting rod 23 flexibly rotationally.Second connecting rod 23 can be installed on the third connecting rod 22 flexibly rotationally.The end of third connecting rod 22 is fixed on the rearward end of shank swing arm 12.Shank swing arm 12 can extend flexibly rotationally forwards, backwards, and the leading section of shank swing arm 12 is fixed on the end of swing arm 13.The other end of swing arm 13 can be installed in the bottom of shank swing seat 6 flexibly rotationally.The top of shank swing seat 6, the leading section that can be installed in chain-drive section 4 around the axle center (around fulcrum pin 17) along the fore-and-aft direction extension flexibly rotationally is inner.

According to the needle bar swinging mechanism 11 that as above constitutes, when 20 actions of shank rotary actuator, the rotation of shank rotary actuator 20 just passes to shank swing arm 12 through first connecting rod 24, second connecting rod 23 and third connecting rod 22, and makes 12 swings of shank swing arm.Because of the rotation of shank swing arm 12, making swing arm 13 is that swing to the left and right at the center with shank swing arm 12, and shank swing seat 6 is that swing to the left and right at the center with fulcrum pin 17.With this, the needle downing position of eedle 5 is swung and determined to eedle 5 to the left and right with shank 9.

And, shank rotary actuator 20 and Spindle Motor 14 interlocks, and by control device 150 control shank rotary actuators 20 make its on eedle 5 is positioned at than board portion 2 more above the time swing shank 9.And, to control method, the amplitude of decision shank 9 and the needle downing position of definite eedle 5 of the anglec of rotation of shank rotary actuators 20 with control device 150.

In addition, as shown in Figure 3, Sewing machines 1 possesses the button of making 200 and hangs, or the button travel mechanism 100 of mobile button 200.Button travel mechanism 100 is made up of the rear that is installed in shank 9 and the various parts or the various mechanism that are fixed on the flat board member 49 of bottom of chain-drive section 4.Button travel mechanism 100; Have in clamping button 200 the chuck unit 71 that moves button 200 to the left and right with respect to board portion 2, make button 200 with chuck unit 71 rotate for flat condition (promptly; Substantial level) and hanged state (promptly; Substantial plumbness) button rotating mechanism 46, make button 200 with chuck unit 71 with respect to board portion 2 to the button height adjustment mechanism 40 that moves up and down and regulate button 200 height, button 200 is carried with chuck unit 71 and is made it send deduction structure (that is relative moving mechanism) 30 with respect to what board portion 2 moved forwards, backwards.

Send deduction structure 30; Have be installed on the flat board member 49 and in the bosom of Sewing machines 1 part (that is the space between chain-drive section 4 and the board portion 2) extend and the conveying pedestal 36 that can move forwards, backwards flexibly, be located at carry on the pedestal 36, simultaneously forwards, backwards the tooth-strip part 33 of extension, detain motor 32 as the sending on the chain-drive section 4 that be fixed on of drive source.On the driving output shaft that send button motor 32, fixing pinion 32a, and pinion 32a and tooth-strip part 33 engagements.Send deduction structure 30 according to this, make with the action of sending button motor 32 and carry pedestal 36 to move forwards, backwards with respect to flat board member 49.And, send the control of button motor 32 controlled devices 150.

Button height adjustment mechanism 40, have pinion 35a on the driving output shaft that is fixed on the button height adjust motor 35 carried on the pedestal 36, is fixed on button height adjust motor 35, with pinion 32a engagement and the tooth bar up and down 41 that can move up and down flexibly, the chuck support arm 34 that is fixed on the tooth bar 41 up and down and forwards stretches out from tooth bar 41 up and down.According to this button height adjustment mechanism 40, when button height adjust motor 35 action, up and down tooth bar 41 simultaneously with chuck support arm 34 to moving up and down.And, the control of button height adjust motor 35 controlled devices 150.

Chuck unit 71 has the chuck portion 90 of clamping button 200, the button differential attachment 70 that button 200 is moved with chuck portion 90 to the left and right.Button differential attachment 70, have the leading section that is installed in chuck support arm 34 and the unit bearing portion 81 that can rotate flexibly around the axle center of left and right directions, be located at differential motor 72 in the unit bearing portion 81, be installed in the unit bearing portion 81 and flexibly move left and right pedestal 74, hang over the extension spring 73 that applies spring force between pedestal 74 and the unit bearing portion 81 and with respect to 81 pairs of pedestals 74 of unit bearing portion to left.Differential motor 72 as drive source is line motors, and with extension spring 73 the axle 72a and the pedestal 74 of differential motor 72 often is abutted against.According to this button differential attachment 70, when differential motor 72 moved, pedestal 74 moved with respect to unit bearing portion 81 with axle 72a simultaneously to the left and right.And, the control of differential motor 72 controlled devices 150.

Chuck portion 90, have chuck movable member 92 and the chuck movable member 93 that moves flexibly to the left and right with respect to pedestal 74, the chuck sheet 91b that is installed in chuck movable member 93 left parts, with chuck sheet 91b left and right sides subtend be installed on the chuck sheet 91a of chuck movable member 92 left parts, the control lever 82 that can be installed on rotationally flexibly on the pedestal 74 and chuck movable member 92 and chuck movable member 93 moved with its rotation.According to this chuck portion 90; When the operator control lever 82 when a direction is rotated; Chuck movable member 92 to right-hand mobile the time chuck movable member 93 move to left, and make chuck sheet 91a and chuck sheet 91b adjacent to each other, and be clipped in button 200 between chuck sheet 91a and the chuck sheet 91b.In addition, when the operator control lever 82 when other direction rotates, chuck movable member 92 chuck movable member 93 when left moves moves to right-hand, and chuck sheet 91a is divided with chuck sheet 91b open, releasing is to the clamping of button 200.

Button rotating mechanism 46 has button rotation cylinder 37, delta link 38, master connecting-rod 39 and rotary body 45.As the button rotation cylinder 37 of drive source, be installed in the rearward end of chuck support arm 34.Button rotation cylinder 37 is two ejector half cylinders, and cylinder rod 37a is advanced and retreat forwards, backwards.At the leading section of cylinder rod 37a, first apex portion of delta link 38 can be installed rotationally flexibly.Second apex portion of delta link 38 can be installed on the sidepiece of chuck support arm 34 flexibly rotationally.The 3rd apex portion of delta link 38 can be installed on the end of master connecting-rod 39 flexibly rotationally.The other end of master connecting-rod 39 can be installed on the rotary body 45 flexibly rotationally.Rotary body 45 is fixed in the unit bearing portion 81, and the axle center that can center on left and right directions be installed in the leading section of chuck support arm 34 flexibly rotationally.According to this button rotating mechanism 46, in case button rotation cylinder 37 action, and cylinder rod 37a advances, and then unit bearing portion 81 just rotates through delta link 38, master connecting-rod 39 and rotary body 45, and button 200 together erects with chuck portion 90.In addition, when button rotation cylinder 37 action, and cylinder rod 37a is when retreating, and then unit bearing portion 81 is with regard to the backwards rotation through delta link 38, master connecting-rod 39 and rotary body 45, and button 200 is together set level with chuck portion 90.And control device 150 is through control electromagnetic valve 108 control button rotation cylinder 37.

According to the button travel mechanism 100 that as above constitutes, when sending 32 actions of button motor, button 200 just together moves with respect to eedle 5 with button height adjustment mechanism 40, button rotating mechanism 46, button differential attachment 70 and chuck portion 90 forwards, backwards.When button height adjust motor 35 action, button 200 just with button rotating mechanism 46, button differential attachment 70 and chuck portion 90 together with respect to eedle 5 to moving up and down.When 37 actions of button rotation cylinder, button 200 just together rotates with button differential attachment 70 and chuck portion 90.When differential motor 72 moved, button 200 just together moved with respect to eedle 5 with chuck portion 90 to the left and right.

In addition, like Fig. 4 and shown in Figure 5, Sewing machines 1 has the cloth feeding mechanism (that is relative moving mechanism) 50 that keeps or carry cloth and carry cloth forwards, backwards.Cloth feeding mechanism 50 has work feed motor 51, synchronous belt 53,

work feed pedestal

54,54,

axle

55a, 55b, lower plate 56, tongue piece 57, tongue piece support sector 59, cloth maintaining part 60, needle plate 61, cylinder saddle 65, tongue piece cylinder 66 etc.

Work feed motor 51 as drive source is fixed in the board portion 2, and on the driving output shaft 52 of work feed motor 51, hangs with synchronous belt 53.Synchronous belt 53 also hangs on the driven voller 58.Driven voller 58 is configured in the place ahead that drives output shaft 52, and synchronous belt 53 extends forwards, backwards.On synchronous belt 53, fixing work feed pedestal 54,54.

Work feed pedestal

54,54 is installed in a 55a, 55b is last.

Axle

55a, 55b extend forwards, backwards, and work

feed pedestal

54,54 can slide with respect to

axle

55a, 55b forwards, backwards neatly.Fixing in the upper end of

work feed pedestal

54,54 and to have the lower plate 56 that slightly is horizontal plane.Be formed with opening 56a in the front portion of lower plate 56, and needle plate 61 be installed at the rear of opening 56a.Central portion at needle plate 61 is formed with pin hole 61b, and forms recess 61a in the leading edge portion of needle plate 61.On lower plate 56 with recess 61a and the corresponding part of pin hole 61b, be formed with slotted hole 56b as pin hole.In addition, shown in Figure 5 is the state of pulling down lower plate 56 from

work feed pedestal

54,54.

In addition, in the bottom of

work feed pedestal

54,54, the rearward end of fixing cylinder saddle 65.Cylinder saddle 65 extends before and after the lower direction of lower plate 56.At the leading section of cylinder saddle 65, the circular-arc tongue piece support sector 59 that is formed that can rotate flexibly around the axle of left and right directions is installed.Fixing tongue piece 57 at the leading section of tongue piece support sector 59.Leading section at tongue piece 57 is provided with pin hole 57b.

And the base end part of tongue piece cylinder 66 can be around the flexible pars intermedia that be installed in cylinder saddle 65 rotationally of the axle of left and right directions.Tongue piece cylinder 66 can make output cylinder bar 66a advance and retreat.Output cylinder bar 66a can be installed on the end of tongue piece connecting rod 67 around the axle of left and right directions flexibly rotationally.The other end of tongue piece connecting rod 67 is fixed on the base end part of tongue piece support sector 59.

In addition, at the forefront of lower plate 56, be provided with together with the cloth maintaining part 60 of tongue piece 57 with cloth clamping and maintenance.Cloth maintaining part 60 has two spring clamping part 60a, 60a.Each spring clamping part 60a is made up of opposed two leaf springs up and down.Rear edge portion in cloth maintaining part 60 is provided with the pin hole 60b that faces peristome 56a.

According to above-mentioned cloth feeding mechanism 50, tongue piece 57 and tongue piece support sector 59 are together hanged with the power of tongue piece cylinder 66.And, with the power of work feed motor 51 make tongue piece 57 and lower plate 56 together integrally forwards, backwards direction (that is cloth feeding direction) move.And, the control of work feed motor 51 and all controlled device 150 of tongue piece cylinder 66.

The control system of Sewing machines 1 is described below.As shown in Figure 1, control device 150 basically is made up of CPU151, RAM152, ROM153, calculation processing apparatus with the system busbar that couples together them.And, control device 150 also have display frame display unit (for example, LCD) 154, be located at the touch panel 155 on display unit 154 display surfaces and be used to indicate the operating pedal 156 of making beginning.

Spindle Motor 14, shank rotary actuator 20, send button motor 32, button height adjust motor 35, work feed motor 51 and differential motor 72 to be connected with CPU151 through drive circuit.And display unit 154 is connected with CPU151 through display control circuit.On CPU151, also connecting operating pedal 156 and touch panel 155 through interface.Operating pedal 156 is trampled through the operator and to be exported connection signal.And electromagnetic valve 108 is connected with CPU151 through interface.

Touch panel 155 is devices that the display surface of detectable display device 154 was touched and exported to its order CPU151.Operator's operation (that is, touching) touch panel 155 promptly can be imported various data.

In ROM153, store and be used for controlling the control program of Sewing machines 1 and the control data that uses at this control program.CPU151 calculates as the working region and according to the control program that is stored among the ROM153 with RAM152, and carries out various computings according to the signal from touch panel 155 or encoder 157 inputs.In addition, CPU151 corresponding to the signal of result of calculation to Spindle Motor 14, shank rotary actuator 20, send button motor 32, button height adjust motor 35, work feed motor 51, differential motor 72, electromagnetic valve 108 and display unit 154 outputs.Control device 150 with this to Spindle Motor 14, shank rotary actuator 20, send button motor 32, button height adjust motor 35, work feed motor 51, differential motor 72, tongue piece cylinder 66, button rotation cylinder 37 and display unit 154 to control; And Sewing machines 1 (promptly; Eedle up-down mechanism 10; Needle bar swinging mechanism 11; Button differential attachment 70, button rotating mechanism 46, button height adjustment mechanism 40, send deduction structure 30, and cloth feeding mechanism 50) carry out making (the following nail catcher that simply is called) or tie and make relevant action around button with the floating seam that floats over button the state on the cloth.

Specify to make and make with reference to Fig. 6 or Fig. 7 below and (make nail catcher and make and call nail catcher and make around the button knot around the button knot around the button knot with the nail catcher of Sewing machines 1.)。Fig. 6 is the side view of button 200 and the position relation of cloth 300 when being illustrated in nail catcher and making.Fig. 7 is that the position that is illustrated in button 200 and cloth 300 when button knot is made concerns vertical view.In addition; Below; To making as button 200 (forming porose 201,202,203,204 on the button 200) and nail catcher with four hole buttons is that parallel sewing (repeat successively after the pin that falls of

hole

201 and 202, and repeat making to hole 203 and 204 successively with falling pin) describes.In addition, in Fig. 6, arrange for front and back in hole 201 and hole 202, and also arrange for front and back in hole 203 and hole 204, and arrange for the diagonal angle with hole 204 in hole 201.

At first, the operator comprises that the leading section ground of tongue piece 57 is positioned at cloth on the tongue piece 57, and draws in output cylinder bar 66a with tongue piece cylinder 66, and tongue piece support sector 59 is to having hanged rotation.Therefore, the leading section of tongue piece 57 moves to spring clamping

part

60a, 60a, and cloth and tongue piece 57 together are clamped in

spring clamping part

60a, 60a is last.At this moment, pin hole 57b sees almost consistent with pin hole 60b from above-below direction.To the cloth of such location, be configured near the leading section of tongue piece 57 (that is, cloth maintaining part 60 near) being clamped in button 200 in the chuck portion 90.

After cloth 300 is positioned on the cloth maintaining part 60, be held in the button 200 in the chuck portion 90, move to position as shown in Figure 6 by button travel mechanism 100, and cloth 300 is moved to position shown in Figure 6 by cloth feeding mechanism 50.That is, cloth feeding mechanism 50, cloth 300 move to make pin hole 60b and pin hole 57b be positioned at eedle 5 under, simultaneously button travel mechanism 100 moves into place button 200 under eedle 5.Specify the action of button travel mechanism 100; Promptly be that button rotation mechanism 46 is flat condition to button 200; And button height adjustment mechanism 40 from cloth 300 leave certain intervals (below; Call button height j (as shown in Figure 7) to this at interval) move button 200 to the top of cloth 300; And, button differential attachment 70 and send deduction structure 30 button 200 move to make button 200 central part (that is cornerwise cross part in the diagonal in hole 201 and hole 204 and hole 203 and hole 204) be positioned at eedle 5 under.The preparation of nail catcher like this, just is through with.

Then, needle bar swinging mechanism 11 make eedle 5 be positioned at hole 201 directly over the position.And; Eedle up-down mechanism 10 together moves back and forth up and down eedle 5 and shank 9; And cloth feeding mechanism 50 is keeping button 200 and cloth 300 relative relation ground, position to move back and forth cloth 300 forwards, backwards, send deduction structure 30 that button 200 is moved back and forth forwards, backwards simultaneously.Therefore, eedle 5 replaces the pin that falls on hole 201 and hole 202, and wear upper thread and hang between button 200 and the cloth 300 (below, call left side seam and buckle line 205 wearing the line that hangs between hole 201 and hole 202 and the cloth 300).And button 200 moves forward and backward with cloth 300, be eedle 5 from the hole 201 and hole 202 when the Shang order goes out, carry out.

After the sewing finishing to hole 201 and 202, needle bar swinging mechanism 11 make eedle 5 be positioned at hole 204 directly over the position.Then; Eedle up-down mechanism 10 makes eedle 5 and shank 9 together to moving back and forth up and down; And cloth feeding mechanism 50 is keeping button 200 and cloth 300 relative relation ground, position to move back and forth cloth 300 forwards, backwards, send deduction structure 30 that button 200 is moved back and forth forwards, backwards simultaneously.Therefore, eedle 5 replaces the pin that falls on hole 203 and hole 204, and on hole 203 and hole 204 and cloth 300, imposes right seam button line 206 and make.

After the sewing finishing to hole 203 and hole 204, tangent mechanism cuts off upper thread, and button rotating mechanism 46 makes button 200, and the opening 56a place of lower plate 56 (promptly) hangs at the rear of cloth 300 (in other words, the front end of tongue piece 57).Like this, button 200 concerns just as shown in Figure 7 with cloth 300 relative positions.Then, needle bar swinging mechanism 11 moves eedle 5, cloth feeding mechanism 50 moving cloths simultaneously, and place with this eedle 5 left side seam button line 205 near root (left side seam is buckled line 205 and passed the position of cloth 300) directly over.At this moment, send deduction structure 30 also keeping button 200 and cloth 300 relative to the position relation move button 200.

Then, eedle up-down mechanism 10 makes eedle 5 and shank 9 together to moving back and forth up and down, and needle bar swinging mechanism 11 and eedle up-down mechanism 10 interlocks, and eedle 5 and shank 9 one is coexisted swing on the seam button line 205,206.Like this, eedle 5 repeats alternately to stitch in a left side left side of button line 205 and ground, the right side decline that right seam is buckled line 206.At this moment, when cloth feeding mechanism 50 is keeping button 200 and cloth 300 relative relation ground, position to move forward cloth 300, send deduction structure 30 to move forward button 200.Like this, from needle falling point P1 to button 200 with the word shape make and reel around button line 207 that a left side seam buckle line 205 and right seam buckle on the line 206, and form this making of word shape stitching around detaining to tie.

Around the button sewn after be through with near the button 200; Eedle 5 moves up and down and swings on one side; Cloth feeding mechanism 50 keep on one side button 200 and cloth 300 relative to relation ground, position move cloth 300 backward on the contrary, send deduction structure 30 mobile backward on the contrary simultaneously button 200.With this, from implementing to make to needle falling point P2 near the button 200 around the button knot.

The action of Sewing machines 1 is controlled Spindle Motor 14, shank rotary actuator 20, is sent button motor 32, button height adjust motor 35, button rotation cylinder 37, work feed motor 51, tongue piece cylinder 66 and differential motor 72 by control device 150 usefulness CPU151 as stated.

Explanation is made around the button knot below.Fig. 8 is divided into from make (that is the making when, button 200 with cloth 300 forwards move of cloth 300 to button 200 making around the button knot.Below being called moves ahead makes.Shown in Fig. 8 (a).) and from make (that is the making when, button 200 with cloth 300 rearward move of button 200 to cloth 300.Below be called to return and make.Shown in Fig. 8 (b)) skeleton diagram.And, as shown in Figure 7, explain apart from cloth 300 front ends apart from the g part and apart between the distance h part of button 200, implemented to make around button knot.And, below, call area I to the zone of implementing around the button knot is made, and area I from the length of cloth direction (being fore-and-aft direction) as length i.Can know that from Fig. 7 button height j=is apart from g+ distance h+length i.

Moving ahead to make and return to make simultaneously is divided into three when regional making around the button knot at cloth feeding direction, the pin number of times that falls of the per unit length of cloth feeding direction (below, be called line density) all different in each zone.Make moving ahead, the regional A of cloth 300 sides (length of the cloth feeding direction of regional A be length a), the line density of the area B (length of the cloth feeding direction of area B is length b) between the zone C (length of the cloth feeding direction of zone C is length c) of button 200 sides, regional A and the zone C has nothing in common with each other.Equally; Make returning, the line density of the area E (length of the cloth feeding direction of area E is length e) between regional F (length of the cloth feeding direction of regional F is length f), region D and the regional F of the region D of button 200 sides (length of the cloth feeding direction of region D is length d), cloth 300 sides has nothing in common with each other.And, length i=length a+ length b+ length c=length d+length e+ length f.

Concrete is; Eedle 5 every swings once (promptly; Eedle 5 drops to the right-hand decline (or right-hand the dropping at left that left side seam is buckled line 205 from decline from buckle line 206 at right side seam) of buckle line 206 at right side seam from the left at left side seam button line 205) button 200 and cloth 300 fore-and-aft direction the amount of feeding (below; Only be called spacing), all different in each regional A～F.At length say, i.e. the spacing Pc of the spacing Pa of regional A and zone C, its spacing Pb than area B is little, and the spacing Pd of region D and the spacing Pf of regional F are littler than the spacing Pe of area E.That is, the line density of regional A and zone C is bigger than the line density of area B, and region D and regional F line density are bigger than the line density of area E.And spacing Pa can equate also that with spacing Pc spacing Pd also can equate with spacing Pf.In addition, length d is different with length c, and length d is littler than length c.In addition, length a is different with length f, and length f is longer than length a.In a word, make moving ahead to make and return, the switching time of its spacing is different.

In order to reach aforesaid purpose; Control device 150 is carrying out when the button knot is made, as control eedle up-down mechanism 10 (Spindle Motor 14), needle bar swinging mechanism 11 (shank rotary actuator 20), cloth feeding mechanism 50 (work feed motor 51) and send deduction structure 30 (sending button motor 32) followingly.At first, control device 150 control eedle up-down mechanism 10, needle bar swinging mechanism 11, cloth feeding mechanism 50 and send deduction structure 30, make eedle 5 drop to needle falling point P1 (make to call to begin to reinforce make) to this.Then, control device 150 control send deduction structure 30 and cloth feeding mechanism 50, make send deduction structure 30 button 200 forwards a displacement g and cloth feeding mechanism 50 300 of clothes displacement g forwards.At this moment, control device 150 control eedle up-down mechanism 10 and needle bar swinging mechanisms 11 make needle bar swinging mechanism 11 eedle 5 swing slightly left, and eedle up-down mechanism 10 descend eedle 5.

Subsequently, control device 150 control eedle up-down mechanism 10 and needle bar swinging mechanisms 11, make eedle up-down mechanism 10 eedle 5 to moving back and forth up and down, and needle bar swinging mechanism 11 is swung eedle 5 to the left and right.In the process that moves up and down that repeats eedle 5; Control device 150 is controlled cloth feeding mechanisms 50 and is sent deduction structure 30; Make cloth feeding mechanism 50 in eedle 5 every swings once spacing Pa of cloth 300 feeding forwards, and send deduction structure 30 in eedle 5 every swings once spacing Pa of button 200 feeding forwards.Like this, the zigzag that is spaced apart spacing Pa that imposes between hole 201 and hole 203 at regional A is made (making around the button knot).

Reach the first spacing change of location Y1; And the zigzag of the regional A that is through with make after (promptly; Moved from

make beginning button

200 and 300 of clothes around button knot ' after g+ length a '); Control device 150 is controlled cloth feeding mechanism 50 and is sent deduction structure 30, makes the amount of feeding of each swing change to Pb.Concrete is; During in eedle 5 declines and in swing next time; If 300 of button 200 and clothes have been fed spacing Pa, then when eedle 5 drops to area B next time, control device 150; Control cloth feeding mechanism 50 and send deduction structure 30, change to spacing Pb to the amount of feeding of each swing next time.Then, control device 150 control cloth feeding mechanisms 50 and send deduction structure 30 make cloth feeding mechanism 50 cloth 300 a pitch of feed Pb forwards, and send deduction structure 30 to swing a pitch of feed Pb forwards to button 200 in each of eedle 5.Certainly, control device 150 is proceeded the driving up and down of eedle up-down mechanism 10 and the balancing point of needle bar swinging mechanism 11 and is driven.With this, make in the zigzag that is spaced apart spacing Pb that area B imposes between hole 201 and hole 203.

From making beginning around the button knot; 300 of button 200 and clothes forwards moved ' apart from g+ length a+ length b ', and when arriving the second spacing change of location Y2, control device 150; Control cloth feeding mechanism 50 and send deduction structure 30, make the amount of feeding of each swing change to spacing Pc.With this, make in the zigzag that is spaced apart spacing Pc that zone C imposes between hole 201 and hole 203.

From making beginning around the button knot; 300 of button 200 and clothes have forwards moved ' apart from g+ length a+ length b+ length c '; And when arriving the 3rd spacing change of location Y3,150 of control device send the feeding side f of deduction structure 30 and system cloth feeding mechanism 50 to converting the rear into.And in the process that moves up and down that repeats eedle 5; Control device 150 is controlled cloth feeding mechanisms 50 and is sent deduction structure 30; Make cloth feeding mechanism 50 in eedle 5 every swings once spacing Pd of cloth 300 feeding forwards, and send deduction structure 30 in eedle 5 every swings once spacing Pd of button 200 feeding forwards.With this, begin to return and make, and make in the zigzag that is spaced apart spacing Pd that region D imposes between hole 201 and hole 203.

Make beginning from returning, 300 of button 200 and clothes forwards move ' length d ', and when arriving the 4th spacing change of location Y4, control device 150 is controlled cloth feeding mechanism 50 and sent deduction structure 30, makes the amount of feeding of each swing change to Pe.With this, make in the zigzag that is spaced apart spacing Pe that area E imposes between hole 201 and hole 203.And, make beginning from returning, 300 of button 200 and clothes have forwards moved ' length d+length e '; And when arriving the 5th spacing change of location Y5; Control device 150 is controlled cloth feeding mechanism 50 and is sent deduction structure 30, makes the amount of feeding of each swing change to Pf.With this, make in the zigzag that is spaced apart spacing Pf that regional F imposes between hole 201 and hole 203.When regional F finished to make in a zigzag, control device 150 control eedle up-down mechanism 10, needle bar swinging mechanism 11, cloth feeding mechanism 50 and send deduction structure 30 made eedle 5 drop to needle falling point P2 and (make this to call to finish to reinforce and make.)。

As stated, on seam button line 205,206, implement to make and return and make making of constituting around buckle to tie by moving ahead.

As on the above-mentioned Sewing machines 1, can carry out the data setting of various project, so that on cloth, follow closely the style of the button or the change nail catcher of different shape.That is, implemented nail catcher before the button knot is made, on display unit 154, show the setting picture shown in Fig. 9 (a) and (b) by control device 150 at Sewing machines 1.Seen the method for the operator of picture, can import the data of each project with operation (touch) touch panel 155.Control device 150 is according to importing Data Control Spindle Motor 14, shank rotary actuator 20, sending button motor 32, button height adjust motor 35, button rotation cylinder 37, work feed motor 51, tongue piece cylinder 66 and differential motor 72.

Below with reference to Fig. 7 and Fig. 8, the project that explanation can be set.As the project that can set, be with respect to the button 200 of cloth 300 height j, by is implemented around button tie the area I make and cloth 300 apart from the length a of g, area I and the distance h of button 200, regional A, the spacing Pa in the regional A, the spacing Pb in the area B, the length c of zone C, the spacing Pc in the zone C, the length d of region D, the spacing Pd in the region D, the length e of area E, the spacing Pe in the area E, the length f of regional F, the spacing Pf in the regional F.

Below, explain and set picture.Shown in Fig. 9 (a), showing button display part 400 and project display part 401 on the setting picture.On button display part 400, showing the side view 403 of vertical view 402, the button of button, corresponding to apart from the project icon 404 of j, corresponding to the project icon 405 of distance h with corresponding to project icon 406 apart from g.On vertical view 402, paid lead-out wire and dimension line simultaneously with the image of button, and shown at interval and the numerical value of the separated between left and right setting of Kong Yukong as the front and back of Kong Yukong.On side view 403, showing the image that button, seam button wire-wound button knot are made.On side view 403, paying has the various sizes line, and with lead-out wire corresponding respectively projects icon 404,405,406.With this, can grasp icon corresponding to the project of projects icon 404,405,406.On projects icon 404,405,406, showing the numerical value that is set in corresponding on the project of this project icon 404,405,406.

On project display part 401, showing project icon 407, corresponding to the project icon 408 of spacing Pa, corresponding to the project icon 409 of spacing Pb, corresponding to the project icon 410 of length c, corresponding to the project icon 411 of spacing Pc, corresponding to the project icon 412 of length d, corresponding to the project icon 413 of spacing Pd, corresponding to the project icon 414 of spacing Pe, corresponding to the project icon 415 of length f with corresponding to the project icon 416 of spacing Pf corresponding to length a.

On projects icon 407～416, describing seam button line and, also describing lead-out wire and dimension line simultaneously around the side view of buckleing the tie lines mark.With this, can grasp which icon corresponding to each project icon 407～416.And display setting is corresponding to the numerical value of the project of projects icon 407～416.

The operator (is to touch the touch panel 155 that shows projects icon 404～416 parts in fact, to touch project icon 404～416.Below, identical when touching icon with it.) set numerical value corresponding to the project of projects icon 404～416.For example, when the operator touched project icon 410, display frame just switched to the picture shown in Fig. 9 (b).That is, project display part 401 converts numerical value input display part 417 into.On numerical value input display part 417, showing " 0 "～numerical value icon (ellipsis), carriage return icon 418 and the project icon 419 of " 9 ".Project icon 419, the icon with touching at Fig. 9 (a) of expression is the same.The operator is to touch the numerical value icon of " 0 "～" 9 "; Can import the numerical value of project (in Fig. 9 (b), being length C) corresponding to project icon 419; And at last to touch carriage return icon 418, the numerical value of project settings for importing corresponding to project icon 419.In addition, in case touched carriage return icon 418, then display frame just converts the picture shown in Fig. 9 (a) into.And,, be that control device 150 carries out being exported the demonstration signal to display unit 154 by CPU151 according to the signal (corresponding to the signal that touches part) from touch panel 155 outputs to Fig. 9 (a) or (b) conversion of picture.And control device 150 carries out by CPU151 according to the numerical value from the signal identification operator input of touch panel 155 output, and carries out the setting value of projects to be stored in this numerical value among the RAM152.

Below, the handling process of the control device 150 that is calculated by CPU151 is described, and with reference to the action with the Sewing machines 1 of this processing of the process description of Figure 10.At first, be presented at picture on the display unit 154 by control device 150, and judge by control device 150 whether the operator has trampled operating pedal 156 (whether having exported connection signal from operating pedal 156) (step S1) like Fig. 9 (a).When (step S1: in the time of not), control device 150 does not judge whether the operator has touched touch panel 155 and imported the numerical value (data) (step S2) of projects in the picture shown in Fig. 9 (b) from operating pedal 156 output connection signals.When control device 150 is judged as the operator when having imported the numerical value (step S2: be) of projects, control device 150 is set at the numerical value (step S3) of input to projects and the processing of control device 150 gets into step S1.When the operator did not import the numerical value (step S2: deny) of projects, the processing of control device 150 then got into step S1.Before operating pedal 156 is trampled by the operator, the processing of control device 150 repeating steps S1～step S3, and set the numerical value of importing projects.

When operating pedal 156 was trampled (step S1: be) by the operator, the processing of control device 150 then got into step S4.In addition, when the operator did not import the numerical value of projects and trampled operating pedal 156, control device 150 was set at projects and gives the default value that is stored in ROM153 earlier.In step S4, control device 150 according to each item destination data (that is, numerical value or the default value imported), calculates to make with nail catcher and tie around button and makes relevant needle downing position etc.At this moment, control device 150 is used from button height j to deduct length a, length c, calculate length b apart from the method for g and distance h, and uses from button height j and deduct length d, length f, calculate length e apart from the method for g and distance h.

Then, control device 150 is controlled Spindle Motor 14, shank rotary actuators 20, is sent button motor 32, button height adjust motor 35, work feed motor 51, differential motor 72 and electromagnetic valve 108, and implements above-mentioned nail catcher (step S5) with this.

Then, control device 150 control button rotation cylinder 37 turn to outstanding state (step S6) to button 200 from flat condition through button rotating mechanism 46.Then, control device 150 carries out the above-mentioned control (step S7) of making that begins to reinforce.Then; Control device 150 control Spindle Motor 14, shank rotary actuators 20, send button motor 32 and work feed motor 51 (step S8), and by eedle up-down mechanism 10, needle bar swinging mechanism 11, send deduction structure 30 and cloth feeding mechanism 50 to go into above-mentioned that kind to make in the zigzag that regional A implements spacing Pa.Then, the order change (step S9～step S13) by spacing Pb, spacing Pc, spacing Pd, spacing Pe, spacing Pf of the amount of feeding that button motor 32 and work feed motor 51 make the pin that falls is each time sent in control device 150 control.With this, use by eedle up-down mechanism 10, needle bar swinging mechanism 11, send deduction structure 30 and cloth feeding mechanism 50 to implement in proper order to make in a zigzag at area B, zone C, region D, area E and regional F successively.Then, control device 150 carries out the control (step S14) that above-mentioned end reinforcing is made.

As stated, shown in figure 11 in the present embodiment, after making around the button knot, seam button line 205,206 is tied tight around buckleing knot sewing line (that is the line that, twines with eedle 5 when the button knot is made at seam) 207.Particularly, in regional A (regional F), zone C (region D) since be wrapped on the seam button line 205,206 to tie sewing line 207 more around buckle, so near the seam button line 205,206 button 200 and cloth 300 is tied tight solidly.Therefore, button 200 can fully keep the state that hanged with respect to cloth 300, and the nail catcher of implementing to have aesthetic property is made.On the other hand, owing to be wrapped in less on the seam button line 205,206,, also shortened to tie and made the required time around button so not only controlled the use amount of suture around buckle knot sewing line 207 in area B (area E).In addition; Even area B (area E) be wrapped on the seam button line 205,206 to tie sewing line 207 less around buckle; If but be wrapped in button 200 with respect near the seam button line 205,206 the cloth 300 to tie sewing line 207 more around buckle; Then seam button line 205,206 can fully be kept the state of having hanged, and keeps the hanged state of button 200 with respect to cloth 300.In a word, use present embodiment, can reach and both can implement to have making of aesthetic property, can boost productivity and reduce the purpose of use cost again around the button knot.

In addition; In the present embodiment; As shown in Figure 8; Can consider think button 200 sides around button knot sewing line 207 density big near button 200 to the second spacing change of location Y2 as the first area, and think the cloth side around button knot sewing line 207 density big near cloth 300 to the 5th spacing change of location Y5 as second area, and other part as the 3rd zone.

In addition, as shown in Figure 8 in the present embodiment, the spacing change of location that making moves ahead makes is with to return the spacing change of location of making different.Promptly; The spacing change of location Y5 that the spacing change of location Y1 that makes and return corresponding with it make that moves ahead has deviation at fore-and-aft direction; And the spacing change of location Y4 that move ahead the spacing change of location Y2 that makes and return corresponding with it are made also has deviation at fore-and-aft direction.

(other embodiment)

In the above-described embodiments, be to swing eedle 5 to the left and right basically, so that the left and the right seam that make the needle downing position of eedle 5 alternately be repeated on left side seam button line 205 are buckled the right-hand of line 206 at needle bar swinging mechanism 11 in the button knot is made.That is, (spacing is to descend at the left of left side seam button line 205 amount of feeding to descend during right side seam is buckled line 205 right-hand button 200 and cloth 300 from eedle 5 in each spacing.) go up eedle 5 declines once.But, also can on each spacing, descend repeatedly by eedle 5.That is, control device 150 also can be controlled needle bar swinging mechanism 11, makes the eedle 5 that between left side seam button line 205 or right seam are buckled line 206 or they, descends at least a time.For example; Shown in Figure 12 (a); If needle downing position 1. (right seam button line 206 right-hand needle downing position) and needle downing position 4. (needle downing position of buckleing line 205 lefts is stitched on a left side) as the needle downing position of full swing amplitude; Then control device 150 control eedle up-down mechanism 10, needle bar swinging mechanism 11, send deduction structure 30 and cloth feeding mechanism 50, make eedle 5 by needle downing position 1.～needle downing position order 7. descends.And; Shown in Figure 12 (b); If needle downing position 1. with needle downing position 5. as the needle downing position of full swing amplitude; Then control device 150 control eedle up-down mechanism 10, needle bar swinging mechanism 11, send deduction structure 30 and cloth feeding mechanism 50, make eedle 5 by needle downing position 1.～needle downing position order 9. descends.Eedle 5 stitches button line 205 on a left side or right seam buckles line 206 or which the regional decline between them can; But particularly (perhaps in the initial swing of area B or area E and a last swing; At regional A, zone C, region D or regional F), preferably eedle 5 descends between left side seam button line 205 or right seam are buckled line 206 or they.Under above situation, decline how many times eedle also can use touch panel 155 to set between two needle downing positions that constitute the full swing amplitude.

If eedle 5 descends between left side seam button line 205 or right seam buckles line 206 or they, the effect that the line of making around the button knot that then can obtain to make rear region A, zone C, region D or regional F does not squint to area B or area E.Therefore, because near the seam button line 205,206 cloth 300 and button 200 is maintained at the state of tying tight solidly, so seam button line 205,206 is maintained at the state that has hanged with respect to cloth 300.That is to say, keeping and have button 200 by the nail catcher of the aesthetic property of cloth 300.

In addition, the present invention is not limited to the foregoing description, as long as in the scope that does not break away from aim of the present invention, also can carry out the change of various improvement and design.

For example, though used the touch panel 155 that is used to import projects numerical value, also can use the input unit of keyboard, mouse or guidance panel etc. to replace touch panel 155.

In addition, nail catcher is made and is not limited to parallel making, and also can make (repeating successively behind the pin that falls in hole 201 and hole 204, to repeat the pin that falls to hole 202 and hole 203 successively) with cross, and also can use other nail method.In addition, button also is not limited to four hole buttons, also can be two hole buttons.In addition, cloth 300 and button 200 are to distinguish feeding forwards, backwards by independent drive source, but also can use same drive source.

In addition; In the above-described embodiments, be with shank rotary actuator 20 make to the left and right swing of eedle 5, with send button motor 32 make button 200 forwards, backwards the moving of direction, make button 200 the moving and make cloth 300 direction mobile and carry out the change of the relative position of eedle 5 and button 200 forwards, backwards of direction to the left and right with differential motor 72 with work feed motor 51.But, also can not swing with eedle 5, and only button 200 and cloth 300 forwards, backwards left and right directions move, 300 pairs of eedles 5 of button 200 and cloth are relatively moved, that is, as long as the relative position of change eedle 5 and button 200.

In addition, make moving ahead, be three zones that are divided into regional A, area B, zone C, and make returning, and is three zones that are divided into region D, area E, regional F, but also can the different zone of spacing divide more.Certainly, even regional change is many, near the zone button 200 and cloth 300, preferably its per unit length ties number of times than other regional tying often around button around button.

And, the number of regions of making of moving ahead with return the number of regions of making and need not be identical number, for example; Of present embodiment, just meet the demands in regional A, B, the C change spacing of making the zone that moves ahead, then make returning; Just the change of spacing can be do not carried out on the way,, then sewing speed can be improved if use the same big spacing to make with area B; And can boost productivity, and reduce the use amount of suture.

In addition, in above-mentioned present embodiment, the setting that having carried out respectively moves ahead makes and return the setting of making, but also can only carry out a side setting and the opposing party is reflected a side setting.Promptly; For example; Also can be respectively applied for length f and spacing Pf among the regional F to length a and spacing Pa, be respectively applied for the setting of length b and spacing Pb length e and spacing Pe in the area E, be respectively applied for length d and spacing Pd in the region D to length c and spacing Pc.

In addition; In above-mentioned present embodiment; Strengthen near the button 200 and near the cloth 300 density with the method for change spacing, but be not limited to the change of spacing, for example around button knot sewing line 207; Also can make coming and going repeatedly to carry out in a zigzag near the button 200 and before and after near the cloth 300 with same spacing, that strengthens like this ties the density of sewing line 207 around button.But, in this case down,, can carry out the nail catcher of shapeliness and tie around button and make so the method for distance falls in change because the part that comes and goes repeatedly is big than other parts.

(invention effect)

According to the present invention; Because at least in the first area or a side of second area; The decline of eedle so the suture that in first area or second area, is wound on the seam button line is more, and is tied seam button line tight near cloth or button often on per unit length.In addition, because in the 3rd zone, the decline number of times of eedle is few on per unit length, has not only controlled the use amount of suture, and has shortened around the button knot and made the required time.That is, owing near cloth or button, tie seam button line tight, fully kept with respect to the state that hang of cloth and have the nail catcher of aesthetic property and boost productivity and reduce the purpose of the use cost of suture so can realize implementing stitching the button line.

In addition, because the eedle that in seam button line, descends at least a time, so can prevent to make crooked around buckleing knot because of the suture through seam button line makes.Therefore, can maintain near the state of seam button line of tying tight cloth or the button, and keep seam button line, keep nail catcher with aesthetic property with respect to the state that cloth has hanged.

Claims

1. sewing machine for buttoning; This sewing machine for buttoning is under the state that keeps flat button; Between the eye of said button and cloth with the seam about constituting by many seam button lines respectively buckle the line group Button nail on cloth, then, under the state that stands button the seam button line about said is being tied the sewing machine for buttoning made from making in a zigzag applying around buckle; It is characterized in that having:

The relative moving mechanism of the relative position of mobile eedle and button and cloth,

Control above-mentioned relative moving mechanism and make the controlling organization that descends at least between the seam button line group of above-mentioned eedle about said once.