CN101245532B - Panel strip sewing machine - Google Patents
Panel strip sewing machine Download PDFInfo
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- CN101245532B CN101245532B CN 200810005947 CN200810005947A CN101245532B CN 101245532 B CN101245532 B CN 101245532B CN 200810005947 CN200810005947 CN 200810005947 CN 200810005947 A CN200810005947 A CN 200810005947A CN 101245532 B CN101245532 B CN 101245532B
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Abstract
The invention relates to a band tailoring sewing machine, which restrains the length of the groove formed on the holding body and prevents the strength reduced. A controlling unit in the band tailoring sewing machine controls and drives a spindle motor, a needle swinging motor, an open gill lock gear and a large pressing foot mechanism, to make when the two stitches (P, Q) are formed, a backstitch part (p1) of one stitch (P) on the downstream of the cloth feeding direction is formed, then a stitch at the downstream of the cloth feeding direction on the front of the other stitch (Q) is formed, and then a positive feeding tailoring part of one stitch is cut off to perform the forming of the stitch of the backstitch part (Q1) of the other stitch, afterwards, a stitch of the forward feeding tailoring part (P3, q2) of the cut positive feeding tailoring part continuous with the backstitch part of the other stitch.
Description
Technical field
The present invention relates to a kind of fillet sewing machine, it has sewing machine main body, and this sewing machine main body has make in two needle bars one single needle that the keeps dormant state mechanism of stopping.
Background technology
For example, shown in patent documentation 1, known a kind of fillet sewing machine, it has sewing machine main body, this sewing machine main body has needle bar, and this needle bar can move up and down with the main shaft interlock, can swing along the cloth direction of feed with other drive source interlocks simultaneously.
In addition, for example as described in the patent documentation 2, known a kind of fillet sewing machine also, it carries following sewing machine main body: have single needle that of making in two needle bars that keep respectively suture needle the remains dormant state mechanism of stopping, a needle bar is moved up and down, this fillet sewing machine is by when forming two stitchings by two pins, the parallel straight line joint-cutting of formation between this stitching and carry out filler rod.
Above-mentioned fillet sewing machine is provided with holder, and it forms a pair of slot part along the cloth direction of feed, makes two suture needles can run through the leading section in cloth direction of feed downstream, can utilize this holder with the maintenance of filler rod cloth and by being pressed on the main cloth.
In addition, across the both sides of this holder, large signature pin mechanism is set, its decline and press and keep main cloth and filler rod cloth transmits main cloth and filler rod cloth simultaneously along the cloth direction of feed.
When forming stitching, holder is descended and keep filler rod cloth, and, utilize large give as security pin that main cloth and filler rod cloth along cloth direction of feed transmitted on one side, needle bar is moved up and down on one side.
When this slot seam forms, existence is in order to prevent from bursting at the seams or to sew up securely and the situation implementing in the end of stitching to backstitch, in order when this backstitches, also to press cloth, with respect to situation about not backstitching, the front end of holder is formed to cloth direction of feed upstream side elongation ground.Also form along cloth direction elongation ground in order to prevent the interference between holder and the pin thereupon slot part.Therefore, holder leading section and slot part cooperate with the length that backstitches and definite length.
Patent documentation 1: JP 2006-212415 communique
Patent documentation 2: JP 59-156377 communique
Summary of the invention
Two stitchings in the aforementioned filler rod, as shown in figure 17, the end of its each stitching forms with the state along the skew of cloth direction of feed sometimes.In this situation, in Figure 17, form the x1 of the section that backstitches of a stitching X, then, form the y1 of the section that backstitches of another stitching Y, then, form continuously with the y1 of the section that backstitches of another stitching Y that the y2 of section is made in positive feeding until the end of the x1 of the section that backstitches of a stitching X, then, the stitching of the x2 of section, y3 is made in the positive feeding of formation two stitching X, Y.And when forming two stitching X, Y, contrary feeding or the pin that need to be equivalent to the length of 5 pins swing, its result, and the slot part of holder also must form roughly the same length.
But if it is very long to form slot part, then the undercapacity of holder produces the inadequate problem of power of losing holder or pressing cloth.
Therefore, the present invention proposes in order to solve above-mentioned problem, and its purpose is to provide a kind of fillet sewing machine, and it does not increase the length that is formed at the slot part on the holder yet in the situation of the end of two stitchings skew, prevent the strength decreased of holder.
Technical scheme 1 described invention is a kind of fillet sewing machine, it has: needle bar mechanism (10), it has at lower end support suture needle (20a, 20a) can form two needle bars (20 of two stitchings, 20), utilize spindle drive motor (101) that two needle bars are moved up and down;
Single needle shut-down mechanism (120), it drives by switching driving body (90), aforementioned two needle bars can be remained on respectively lifting position;
Holder (2), it remains on filler rod cloth (W) on the main cloth, and the leading section in cloth direction of feed downstream forms a pair of slot part (31A) that aforementioned two suture needles can be run through;
The large pin mechanism (1) that gives as security, it has across aforementioned holder and descends in both sides and press a pair of large presser feet that keeps main cloth and filler rod cloth, is driven and main cloth and filler rod cloth are transmitted along the cloth direction of feed by feed motor (102); And
Control module (5), it is controlled aforementioned spindle drive motor, aforementioned feed motor and switches driving body,
The front end of the cloth direction of feed of aforementioned two stitchings and the position of rear end are different on the cloth direction of feed, and form the backward stitch that is made of regulation pin inverse of a number feeding stitching,
It is characterized in that,
When aforementioned control module forms at aforementioned two stitchings, carry out the following control of making: carry out being positioned in aforementioned two stitchings the formation of stitching of the section that backstitches of a stitching in cloth direction of feed downstream, then, section is made in the positive feeding of a stitching of formation, be positioned at the stitching with respect to the cloth direction of feed downstream of another stitching front end, then, the stitching that interrupts the positive feeding section of a stitching forms and carries out the formation of stitching of the section that backstitches of another stitching, then, form and to make the stitching of section with the positive feeding of an aforementioned stitching that interrupts respectively and the stitching of section is made in the consecutive positive feeding of the section that backstitches of another stitching.
According to technical scheme 1 described invention, by controlling aforementioned spindle drive motor, aforementioned feed motor and switching driving body, when two stitchings form, at first, form the stitching of the section that backstitches of a stitching that is positioned at cloth direction of feed downstream in two stitchings.Then, the positive feeding that forms a stitching make section, be positioned at the stitching with respect to the cloth direction of feed downstream of another stitching front end.Then, the formation of section is made in the positive feeding of interrupting a stitching, forms the stitching of the section that backstitches of another stitching.Then, form respectively and make the stitching of section with the positive feeding of a stitching that interrupts and the stitching of section is made in the consecutive positive feeding of the section that backstitches of another stitching.
Like this, the formation of making the stitching of section by the positive feeding of a stitching of temporary transient interruption, because one the contrary amount of feeding that backstitches in the section of stitching resets, so when the stitching of the section that backstitches that forms another stitching, can be to form stitching with the same condition of the stitching of the section that backstitches of a stitching.
Thus, because the length of the slot part that need to form in holder, as long as form and the length that backstitches the same length of section, so even the stitching end is offset mutually, do not need to consider its deflected length yet and form more longways slot part, can be suppressed at the length of the slot part that forms on the holder, prevent the strength decreased of holder.
Thus, because the length of the slot part that need to form in holder, as long as form and the length that backstitches the same length of section, so even the stitching end is offset mutually, do not need to consider its deflected length yet and form more longways slot part that realization can be suppressed at the length of the slot part that forms on the holder and prevent the strength decreased texts of holder.
Needle bar mechanism (10), it has two needle bars (20,20) that can form two stitchings in lower end support suture needle (20a, 20a), utilizes spindle drive motor (101) that two needle bars are moved up and down;
Single needle shut-down mechanism (120), it drives by switching driving body (90), aforementioned two needle bars can be remained on respectively lifting position;
Holder (2), it remains on filler rod cloth (W) on the main cloth, and the leading section in cloth direction of feed downstream forms a pair of slot part (31A) that aforementioned two suture needles can be run through;
The large pin mechanism (1) that gives as security, it has across aforementioned holder and descends in both sides and press a pair of large presser feet that keeps main cloth and filler rod cloth, is driven and main cloth and filler rod cloth are transmitted along the cloth direction of feed by feed motor (102); And
Control module (5), it is controlled aforementioned spindle drive motor, aforementioned feed motor and switches driving body,
The front end of the cloth direction of feed of aforementioned two stitchings and the position of rear end are different on the cloth direction of feed, and form the backward stitch that is made of regulation pin inverse of a number feeding stitching,
It is characterized in that,
When aforementioned control module forms at aforementioned two stitchings, carry out the following control of making: be arranged in the formation of stitching of the section that backstitches of a stitching in aforementioned two stitching cloth direction of feed downstreams, then, the positive feeding that forms a stitching is made the stitching of section until the starting position of the section that backstitches of another stitching, then, carry out the formation of stitching of the section that backstitches of another stitching, then, the positive feeding that forms another stitching make section stitching until with a stitching in the positive feeding that formed make the position terminal arranged side by side of section, then, forming respectively the positive feeding of making the stitching of section and another stitching with the positive feeding of an aforementioned stitching makes the consecutive positive feeding of section and makes the stitching of section.
According to technical scheme 3 described inventions, control aforementioned spindle drive motor, aforementioned feed motor and switch driving body, when two stitchings form, at first, form the stitching of the section that backstitches of a stitching that is arranged in aforementioned two stitching cloth direction of feed downstreams.Then, the positive feeding that forms a stitching is made the stitching of section until the starting position of the section that backstitches of another stitching.Then, form the stitching of the section that backstitches of another stitching.Then, the positive feeding that forms another stitching make section stitching until with a stitching in the positive feeding that formed make the position terminal arranged side by side of section.Then, forming respectively the positive feeding of making the stitching of section and another stitching with the positive feeding of an aforementioned stitching makes the consecutive positive feeding of section and makes the stitching of section.
Like this, the formation of making the stitching of section by the positive feeding of a stitching of temporary transient interruption, because one the contrary amount of feeding that backstitches in the section of stitching resets, so when the stitching of the section that backstitches that forms another stitching, can be to form stitching with the same condition of the stitching of the section that backstitches of a stitching.
Thus, because the length of the slot part that need to form in holder, as long as form and the length that backstitches the same length of section, so even the stitching end is offset mutually, do not need to consider its deflected length yet and form more longways slot part, can be suppressed at the length of the slot part that forms on the holder, prevent the strength decreased of holder.
Technical scheme 4 described inventions are, in technical scheme 3 described fillet sewing machines, it is characterized in that aforementioned control module is controlled aforementioned spindle drive motor, aforementioned pin wobbling motor, aforementioned feed motor and switched driving body, carries out the aforementioned control of making.
Technical scheme 4 described fillet sewing machines, since with claim 3 similarly, the formation of making the stitching of section by the positive feeding of a stitching of temporary transient interruption, because the contrary amount of feeding or the pin oscillating quantity that backstitch in the section of a stitching reset, so when the stitching of the section that backstitches that forms another stitching, can be to form stitching with the same condition of the stitching of the section that backstitches of a stitching.
Thus, because the length of the slot part that need to form in holder, as long as form and the length that backstitches the same length of section, so even the stitching end is offset mutually, do not need to consider its deflected length yet and form more longways slot part that realization can be suppressed at the length of the slot part that forms on the holder and prevent the strength decreased texts of holder.
The effect of invention
According to the present invention, because the length of the slot part that need to form in holder, as long as form and the length that backstitches the same length of section, so, even the stitching end is offset mutually, do not need to consider this deflected length yet and form more longways slot part, can be suppressed at the length of the slot part that forms on the holder, prevent the strength decreased of holder.
Description of drawings
Fig. 1 is the oblique view of schematic configuration of the integral body of expression fillet sewing machine.
Fig. 2 is expression is positioned at the state of upper dead center position with the crosspointer hold mode the front view of needle bar mechanism.
Fig. 3 (A) is the needle bar side view, (B) is the needle bar front view.
Fig. 4 is expression is positioned at the state of lower dead point position with the crosspointer hold mode the front view of needle bar mechanism.
Fig. 5 is under the operating state of Fig. 2, passes the center line of a needle bar, and the while is along the profile of the represented needle bar mechanism of X-Z plane section.
Fig. 6 is the front view that the needle bar mechanism of the state after the hold mode of a needle bar has just been removed in expression.
Fig. 7 is under the operating state of Fig. 6, passes the center line of a needle bar, and the while is along the profile of the represented needle bar mechanism of X-Z plane section.
Fig. 8 is that expression is removed the hold mode of a needle bar and moved to the front view of needle bar mechanism of the state of bottom dead centre.
Fig. 9 is the oblique view of holder.
Figure 10 is the block diagram of the related structure of the control device in the expression fillet sewing machine.
Figure 11 is the figure of the formation method of two stitchings of expression.
Figure 12 is the flow chart of the formation method of two stitchings of expression.
Figure 13 is the figure of the position relationship of the explanation forming process of a stitching and holder.
Figure 14 is the figure of the position relationship of the explanation forming process of another stitching and holder.
Figure 15 is the figure of variation of the formation method of two stitchings of expression.
Figure 16 is the flow chart of variation of the formation method of two stitchings of expression.
Figure 17 is the figure of the formation method of expression two stitchings of the prior art.
The specific embodiment
Below, describe for the embodiment of the fillet sewing machine that the present invention relates to.
(overall structure of fillet sewing machine)
In the present embodiment, take the XYZ axle shown in each figure as benchmark regulation all directions, Z-direction and central cutting knife described later to move up and down direction consistent, the plane of making operation is vertical with Z-direction, will with this operation plane parallel and the direction of carrying out the cloth feeding as X-direction, will with the operation plane parallel and with the direction of X-direction quadrature as Y direction.
As shown in Figure 1, fillet sewing machine 100 is following Sewing machiness: filler rod cloth is sewn onto on the main cloth, form simultaneously along the joint-cutting of the linearity of the cloth direction of feed of these clothes, and form the roughly joint-cutting of V word shape at the both ends of the joint-cutting of this linearity.
＜needle bar mechanism 〉
Such as Fig. 2～shown in Figure 8, it is inner that needle bar mechanism 10 is arranged at the front end of sewing machine main body 12, makes a pair of needle bar 20,20 that keeps separately respectively two suture needle 20a, 20a, simultaneously or optionally move up and down.
In addition, remove the single needle shut-down mechanism 120 and each needle bar 20 binding that switching mechanism 80 consists of by clutch mechanism 60, stop mechanism 70, maintenance.The a pair of clutch components 61 that clutch mechanism 60 makes front end insert/extract with respect to the first connecting hole 21 of each needle bar 20, thus can with respectively by the maintenance of 51 pairs of each needle bars 20 of needle bar holder ring, optionally between hold mode and disarm state, switch.Stop mechanism 70 uses stop dog part 71 to remain on the needle bar bracing frame 40 as shown in Figure 5, and this stop dog part 71 makes front end with respect to utilizing clutch mechanism 60 and so that keep becoming the second connecting hole 22 of the needle bar 20 of disarm state and insert/extract.Keep to remove switching mechanism 80, shown in Fig. 2,5, select a certain needle bar 20 and clutch mechanism 60 is switched to a kind of in hold mode and the disarm state.
(needle bar)
Such as Fig. 2～shown in Figure 5, each needle bar 20 is supported with the state along Z-direction by needle bar bracing frame 40 usually, in the situation of carrying out the pin swing, move centered by the axle of Y direction, to apply rotary oscillation in the length direction centre position of each needle bar 20 via needle bar bracing frame 40.When carrying out above-mentioned swing, the upper and lower end parts of each needle bar 20 swings along X-direction respectively.
Each needle bar 20 is at the clava of section for the part formation tabular surface 23 of the side face of circular pole, keeps suture needle 20a in its bottom.
Under needle bar 20 state supported along Z-direction, tabular surface 23 is supported by needle bar bracing frame 40 to become along the mode of the state on Y-Z plane.On the surface of described tabular surface 23, on the centre position of Z-direction, form slot part 24 along its length direction.
In addition, on the plane of tabular surface 23, near the bottom and upper end of slot part 24, the mode with overlapping with this slot part 24 forms the first connecting hole 21 and the second connecting hole 22.
The mode that the first connecting hole 21 inserts with the leading section that can make clutch components 61, corresponding with this front end shape and form oblong-shaped.Described oblong-shaped roughly protrudes for rectangle is corresponding with the leading section of clutch components 61, sets transverse width and vertical width that rectangular long limit and minor face are slightly larger than respectively the essentially rectangular leading section of clutch components 61.
The second connecting hole 22 is positioned at the top of the first connecting hole 21, and is corresponding with the shape of the leading section of stop dog part 71 described later (with reference to Fig. 5), forms to be viewed as from the side semicircular mode from top view as rectangle.
In the inside of slot part 24, along the length direction of this slot part 24 oscillating deck 25 is installed swingably.This oscillating deck 25 is supported by the back shaft along Y direction in the centre position of the first connecting hole 21 and the second connecting hole 22, and by swinging, move along X-direction at its both ends.That is, an end of oscillating deck 25 and the other end be respectively in the inside of the first connecting hole 21 and the second connecting hole 22, moves along each connecting hole 21,22 depth direction.
In addition, oscillating deck 25 forms following shape: if the one end is pressed near the deep of the first connecting hole 21, then the other end is pushed out to tabular surface 23 in the second connecting hole 22, if the other end is pressed near the deep of the second connecting hole 22, then an end is pushed out to tabular surface 23 in the first connecting hole 21.
That is, for same needle bar 20, if clutch components 61 inserts in the first connecting hole 21, the stop dog part 71 that has then inserted in the second connecting hole 22 is released by oscillating deck 25.In addition, if stop dog part 71 inserts in the second connecting hole 22, the clutch components 61 that has then inserted in the first connecting hole 21 will be released by oscillating deck 25.
In addition, needle bar 20 utilizes above-mentioned the first connecting hole 21 to engage with clutch mechanism 60 and remains on the needle bar holder ring 51 when moving up and down.On the other hand, preventing in order to use single needle to make when moving up and down, removing clutch mechanism 60, utilizing simultaneously the second connecting hole 22 to engage with stop mechanism 70 and by 40 maintenances of needle bar bracing frame.
(needle bar bracing frame)
Shown in Fig. 2,4,7, needle bar bracing frame 40 forms through hole at an upper portion thereof and at a lower portion thereof, so that two needle bars 20 insert side by side in Y direction, can support up or down each needle bar 20 thus.
Near the support portion of the needle bar 20 of the bottom of needle bar bracing frame 40, the supply parts 41 such as the nonwoven fabric of supplying lubricating oil or lubricating grease etc. or polyurethane are set, set each needle bar 20 in the mode of sliding at this supply part 41.Thus, lubricating oil or lubricating grease are supplied to the sliding part between each needle bar 20 and the needle bar bracing frame 40, make to move up and down successfully and carry out.
In addition, near the support portion of the needle bar 20 on the top of needle bar bracing frame 40, stop mechanism 70 is set, arranges at the stop mechanism 70 positive downsides of needle bar bracing frame 40 and keep removing switching mechanism 80.Remove switching mechanism 80 for stop mechanism 70 and maintenance, describe in detail in the back.
In addition, near the needle bar 20 that is supported by needle bar bracing frame 40, form the guiding groove that moves up and down 42 that guides the square slider 55 on the end that is arranged on connecting rod body 54,54 pairs of each needle bars 20 of this connecting rod body apply the driving force that moves up and down.
In addition, the above-below direction centre position in Y direction one end of needle bar bracing frame 40 links an end that applies the swinging axle 43 of pin oscillating motion along the cloth direction of feed.This swinging axle 43 rotatably is supported on the sewing machine stand with the state along Y direction, is attached on the swing mechanism that swings with moving up and down synchronously of needle bar 20.This swing mechanism has the open described known structure of 2006-212415 communique of aforementioned Japanese patent, its pendulum angle scope can regulated in the angular range of regulation from 0, can make as required the suture needle that kept by each needle bar 20 along X-direction with arbitrarily amplitude fluctuation.That is, swing mechanism works as the pin swing mechanism.In addition, as previously mentioned, do not carrying out under the state that pin swings, swing mechanism is adjusted to and makes each needle bar 20 become state along Z-direction.
(pin reciprocating mechanism)
As shown in Figure 2, pin reciprocating mechanism 50 has: needle bar holder ring 51, and it supports each needle bar 20 via clutch mechanism 60; Machine spindle 52, it is by machine spindle motor 101 rotary actuations that move up and down drive source as each needle bar 20; Rotary hammer 53, it is fixedly mounted on the end of machine spindle 52; Connecting rod body 54, it will link between rotary hammer 53 and the needle bar holder ring 51; And square slider 55, it makes the end of the needle bar holder ring portion side of connecting rod body 54 move along Z-direction.In addition, machine spindle motor 101 for example be by the AC servomotor consist of can rotating motor, in the explanation afterwards, the direction of rotation of the motor reel during for driving machine spindle motor 101, in the situation that is not having special record, be driven to and make machine spindle 52 to the forward that is rotated in the forward.
(clutch mechanism)
Here, such as Fig. 5 and shown in Figure 7, two follow-up connecting rods 62 form near mode crooked the length direction central portion, and its bend P can be installed on the needle bar holder ring 51 with rotating freely.One end of follow-up connecting rod 62 and clutch components 61 link.
And, as shown in Figure 7, pressed from the top and take bend P as fulcrum along the A direction rotation by follow-up connecting rod 62, one end of follow-up connecting rod 62 pulls clutch components 61, clutch components 61 is retreated and lock pawl 64 with each to lock from the first connecting hole 21, thereby the needle bar 20 corresponding with this clutch components 61 removed with respect to the engaging of needle bar holder ring 51.
In addition, as shown in Figure 5, remove by the locking that locks 64 pairs of clutch components 61 of pawl by press down releasing pin 66 from the top, can utilize the pretension by pressing spring 63 that clutch components 61 is advanced towards the first connecting hole 21, two needle bars 20 are engaged with needle bar holder ring 51.
(keeping removing switching mechanism)
Keep removing switching mechanism 80, shown in Fig. 2, Fig. 5～7, have: guiding slot part 82, it is formed on the needle bar bracing frame 40 on the top a little side's of top dead-centre who embraces ring 51 than needle plate position; Switching part 81, it can be supported slidably along guiding slot part 82; And thrust cap 83, it prevents that switching part 81 from coming off from guiding slot part 82.
Guiding slot part 82 forms along Y direction on the top of needle bar bracing frame 40, supports slidably in the direction switching part 81.
Switching part 81 is prism-shaped roughly on the whole, form in the one end to the side of length direction quadrature butt projection 81a protruding upward, its other end is connected with the electromagnetic valve 90 (with reference to Figure 10) of the cylinder that is arranged at the sewing machine stand outside.This cylinder and electromagnetic valve 90 work as switching driving body.
Specifically, control device 5 links via the electromagnetic valve 90 of driver 90a and cylinder.Cylinder uses the 3 segmentation cylinders that two electromagnetic valves 90 are set in cylinder.And, by the driving by two electromagnetic valves 90 in control device 5 control cylinders, the position of the switching part 81 that links with electromagnetic valve 90 can be switched three positions.Thus, make for these three kinds that can switch left pin, crosspointer, right pin.
In addition, be not limited to cylinder, also can be solenoid.Specifically, 2 solenoidal plungers and switching part 81 are linked, utilize control device 5 to control respectively this 2 solenoids.That is, so long as driving that can electrical control switching part 81 is then irrelevant with the kind of this drive source.
Switching part 81 so that butt projection 81a towards the state of below, be supported on the guiding slot part 82.In addition, by the movement of switching part 81 along Y direction, butt projection 81a can be switched to a side follow-up connecting rod 62, the opposite side follow-up connecting rod 62 of the clutch mechanism 60 in the time of can reaching top dead-centre to needle bar holder ring 51 or remove on any position that pushes of pin 66.In addition, this butt projection 81a is set as following protrusion length: for each follow-up connecting rod 62 of the needle bar holder ring 51 that rises to upper dead center position, 62 and remove pin 66, can be pressed to each and remove or the below of the path increment that snap action is required.
(stop mechanism)
＜sewing machine table and sewing machine main body 〉
As shown in Figure 1, sewing machine table 11, its upper surface is parallel with X-Y plane, uses under level.It is the long oblong-shaped of X-direction that the upper surface of this sewing machine table 11 forms along cloth direction of feed F.On sewing machine table 11, large pin mechanism 1 and the holder 2 of giving as security of configuration is in the downside configuration bevel tool mechanism 9 of sewing machine table 11.
In addition, the lower position at two suture needle 20a, 20a of sewing machine table 11 arranges needle plate 13.On this needle plate 13, arrange respectively and two pin holes that suture needle 20a, 20a are corresponding, at the downside of each pin hole, not shown horizontal container is set respectively.That is, insert each the bar suture among each suture needle 20a, 20a, caught by each horizontal container of correspondence at the downside of needle plate 13 respectively, twine with rolling off the production line of from horizontal container, extracting out and make.
In addition, two pin holes of needle plate 13 roughly in the middle of, form the slit that inserts central cutting knife 3 in the downstream of cloth direction of feed F, the co-operating of configuration using and central cutting knife 3 and cut off the not shown fixed cutting tool of cloth.
Sewing machine main body 12 has following part and consists of: pedestal part 12a, and it is configured in the next door in the length direction centre position of sewing machine table 11; Vertical 12b of body section, it uprightly arranges from base portion 12a; And arm 12c, setting is extended along Y direction in its upper end from vertical body 12b of section, in arm 12c, accommodates the primary structure of pin reciprocating mechanism 50 and movable cutter mechanism.In addition, from bottom drop support two pin 20a, 20a and the central cutting knife 3 of the front of arm 12c.
＜give as security greatly pin mechanism 〉
The large pin mechanism 1 that gives as security has: give as security greatly pin 15,15, it presses respectively the width both ends of the filler rod cloth that is arranged on the holder 2 from the top; Supporter 16, it supports these large signature pin 15,15; Not shown cylinder, it moves up and down large signature pin 15,15 via supporter 16; And presser foot motor (feed motor) 102, it makes filler rod cloth and the main cloth pressed by large signature pin 15,15 move along cloth direction of feed F via supporter 16.
Each large signature pin 15,15 is respectively rectangular flat board, respectively so that length direction be supported on the supporter 16 along the state of X-direction.In addition, each large signature pin 15,15 supported in its platen surface mode parallel with X-Y plane.And the driving that can utilize cylinder is switching between two positions up and down, when in upper position, leaves from the upper surface of sewing machine table 11, when lower position, becomes the upper level of sewing machine table 11.In addition, two large give as security pin 15,15 with the centre at least can be by holder 2 the released state of vertical plate part 32 supported.
＜holder 〉
In addition, above-mentioned holder 2 is supported by the not shown supporting mechanism with cylinder, when not using, as shown in Figure 1, leaves to keep out of the way from the pin upper/lower positions of double joint suture needle 20a, 20a.In addition, in use, utilize the driving of cylinder and be arranged on the needle plate position.
And, if filler rod cloth is the overlapping upside that is placed on main cloth on needle plate 13, then from top mounting holder 2, turn back and upwards erect from the both ends of the width of base plate 31 in the both ends that make the width of filler rod cloth, and, make the both ends of width of filler rod cloth respectively along the side of the both sides of vertical plate part 32, kept by large signature pin 15 described later, 15.That is, make filler rod cloth become a side along vertical plate part 32 via the state of base plate 31 to another side 32.Thus, under the state of placing filler rod cloth being wound on the holder 2, make on one side filler rod cloth and main cloth feeding, in the both sides of vertical plate part 32 utilize two piece suture needle 20a, 20as make on one side, the joint-cutting that moves up and down the formation linearity by central cutting knife 3 simultaneously.
As mentioned above, at the both ends of the width of filler rod cloth, in order to keep respectively along the state of two sides of vertical plate part 32, with respectively with the two sides of vertical plate part 32 near relative mode, two flat longitudinal guide sections 34,34 are set.These longitudinal guide sections 34 are crooked in the mode in the gap between expansion and the vertical plate part 32 in cloth direction of feed upstream-side-end, and keep certain interval in the downstream.That is, in the gap of longitudinal guide section 34 and vertical plate part 32, draw in an end of the width of filler rod cloth, guide along the mode of the state of a side of vertical plate part 32 to keep this end.
In addition, near the downstream of the cloth direction of feed F of holder 2, at the central cutting knife 3 of extended line configuration of vertical plate part 32.Because move to the downstream of cloth direction of feed F along vertical plate part 32 respectively at the both ends of the width of filler rod cloth, thus guide member 33 is set, so that it can not isolated by central cutting knife 3.This guide member 33 forms from the end of downstream side of the cloth direction of feed F of this vertical plate part 32, forms along cloth direction of feed F bifurcated or branch simultaneously to overlook to observe shape and be roughly V word shape.In addition, more effectively guide filler rod cloth to leave central cutting knife 3 in order to make guide member 33, be configured to cover near central cutting knife 3 and from both sides this central authorities' cutting knife 3 as far as possible.Utilize this shape, when the cloth feeding, the gap of 33 of longitudinal guide section 34 and guide members is passed through respectively at the both ends of the width of filler rod cloth, is drawn towards the direction of leaving vertical plate part 32, is directed to the direction of dodging central cutting knife 3.
＜bevel tool mechanism 〉
That is to say that bevel tool 9 has: two bevel tools 91,91, it has the compartment of terrain configuration along cloth direction of feed F; And not shown moving up and down motor, it moves up and down respectively each bevel tool 91,91.
Each bevel tool 91 is made of a diabolo cutting knife that is shaped as the arrangement of V word shape of observing from its front, and is supported towards the state of top with its leading section.In addition, can move up and down with the below of motor from the upper surface of sewing machine table 11 by utilization and be moved upward, thereby form the joint-cutting of V word shape at cloth.In addition, each bevel tool 91 can be regulated the angle between a pair of leg-of-mutton cutting knife, can be corresponding with the interval of two stitchings that formed by two suture needle 20a, 20a.
In addition, two bevel tools 91 with the peristome of the V word shape joint-cutting of each self-forming each other reverse mode supported respectively.In addition, two bevel tools 91 can be regulated its interval.
＜control device 〉
As shown in figure 10, control device 5 is connected with following part via not shown imput output circuit: display floater 84, its display notification user's authentic language or the information of image; Configuration switch 85, it is used for carrying out picture and selecting or order input, to be used for being presented in the lump the various settings on the display floater 84; Numerical key 86, it is used for when carrying out various setting, input value input and definite or cancellation thereof; And beginning switch 87, the beginning that its input is made.
In addition, control device 5 is respectively via driver 101a, 102a, 103a, is connected with machine spindle motor 101, presser foot motor 102, cutting knife motor 103 as its control object.In addition, control device 5 via driver with the cylinder that moves up and down that carries out holder 2, greatly give as security the cylinder of pin 15,15 lifting and carry out bevel tool 91,91 respectively moving up and down with motor (diagram slightly) of lifting is connected.In addition, be connected with the electromagnetic valve 104 of the cylinder of non-action status with the operating state that switches central cutting knife 3 via driver 104a.In addition, control device 5 via driver 105a with swing for the pin that carries out suture needle 20a, 20b and be connected with pin wobbling motor 105 that swinging axle 43 links.In addition, control device 5 is connected with the electromagnetic valve 90 of the cylinder that is used for change switching part 81 positions via driver 90a.
Control device 5 has: CPU 151, and it carries out various calculation process; ROM 152, and it writes for the control program of the various functions of the aftermentioned of carrying out fillet sewing machine 100, action, control data or various stitch data; And RAM 153, it stores the various data relevant with the processing of CPU 151 in the working region.
Storage control drives machine spindle motor 101 in ROM 152, pin wobbling motor 105, cylinder and the large control program of giving as security pin mechanism 1, so that by two suture needle 20a, when 20a forms two stitchings at cloth, carry out being positioned in two stitchings the formation of stitching of the section that backstitches of a stitching in cloth direction of feed downstream, then, formation is made the stitching of section than the positive feeding of a stitching in the more close cloth direction of feed of the front end of another stitching downstream, then, interrupt to form the positive feeding section of a stitching and carry out the formation of stitching of the section that backstitches of another stitching, then, form and to make the stitching of section with the positive feeding of a stitching that interrupts respectively and the stitching of section is made in the consecutive positive feeding of the section that backstitches of another stitching.
That is, by CPU 151 executive control programs, control device 5 works as control module.In addition, form as described later for the stitching that is undertaken by executive control program.
(stitching formation method)
Below, form method for the stitching that is undertaken by fillet sewing machine 100 and describe.
If pressed by the operator and to make beginning switch etc., then the CPU 151 of control device 5 is by executive control program, and control drives machine spindle motor 101, pin wobbling motor 105, cylinder, give as security pin mechanism 1 greatly and carry out the formation of stitching.In addition, in following explanation, in Figure 11, the section of backstitching is depicted in from positive feeding makes the different position of section, but this only is for convenience of description, in actual making, carries out positive feeding in the mode that overlaps with the section of backstitching and makes.
In addition, in following explanation, fillet sewing machine 100 describes to have following structure: when the initial turn-on power supply or the filler rod of regulation when finishing, become the state that can make with crosspointer that keeps engaging with needle bar holder ring 51 with two needle bars 20,20.
Shown in Figure 11,12, if CPU 151 executive control programs, then at first, CPU151 drives the electromagnetic valve 90 of cylinder and switching part 81 is moved, and makes the pin (right pin) among two suture needle 20a, the 20a stop up (step S1).At this moment, CPU 151 is by driving the electromagnetic valve 90 of cylinder, switching part 81 is moved, so that butt projection 81a is located at the position of the top of the follow-up connecting rod 62 that arranges on the needle bar 20 that is stopped, on this basis, make machine spindle motor 101 counter-rotating and make spindle drive motor 52 counter-rotatings, make protruding 81a and follow-up connecting rod 62 above butt and under the state that follow-up connecting rod 62 is pressed down, machine spindle motor 101 is stopped.Thus, the clutch components 61 corresponding with the needle bar 20 of right pin retreats, and the suture needle 20a, the 20a that are used for making switch to single needle (left pin) from crosspointer.
In addition, as noted abovely making machine spindle 52 counter-rotating and make the top butt of protruding 81a and follow-up connecting rod 62, is in order not undertaken unnecessary fall pin and carrying out needle bar 20 with respect to the engaging of needle bar holder ring 51 or the switching of releasing by crosspointer on cloth.
Then, CPU 151 judges whether the formation of stitching of the p1 of the section that backstitches that initial stitching namely is positioned at a stitching P in cloth direction of feed downstream in two stitchings finishes (step S2).Here, judge in the situation that finishes to form the stitching that backstitches the p1 of section (step S2: no) at CPU 151, CPU 151 is by driving machine spindle motor 101, pin wobbling motor 105, pin is swung to the downstream (the B direction among Figure 11) of cloth direction of feed, utilize pin to swing the stitching (step S3: the first stitching forms step) of the p1 of the section that backstitches that forms a stitching P who is positioned at cloth direction of feed downstream in two stitchings.Here, the stitching of the p1 of the section that backstitches of a stitching P forms by the pin that falls of the order with needle downing position n0, n1, n2, n3.In addition, in step S3, also can drive the large pin mechanism 1 that gives as security by swinging to cooperate with pin, make and make the spacing growth, perhaps also can replace the pin swing, only form stitching by carrying out feeding by large signature pin mechanism 1.
Backstitch in formation the p1 of section stitching during, CPU 151 returns step S2, the stitching that judges whether to finish to backstitch the p1 of section forms.Then, CPU 151 continues to backstitch the stitching formation of the p1 of section, until the formation of the stitching of the p1 of the section that backstitches of judgement Sewing machines finishes.
In step S2, CPU 151 judges that the stitching that backstitches the p1 of section forms in the situation about finishing (step S2: be), CPU 151 makes pin swing to cloth direction of feed upstream side (the F direction among Figure 11), and the stitching that carries out making than the positive feeding of the stitching P in the more close cloth direction of feed of the front end downstream of another stitching Q the p2 of section forms (step S4: the second stitching forms step).Here, the stitching of the p2 of section is made in the positive feeding of a stitching P, forms by the pin that falls of the order with needle downing position n3, n4, n5.
Form positive feeding make the p2 of section during, CPU 151 judges that positive feeding makes the stitching formation of the p2 of section and whether finish (step S5).Then, make the stitching of the p2 of section and form end (step S5: be) if CPU 151 judges positive feeding, then CPU 151 switches the suture needle of using.
Here, in the time will making employed suture needle 20a, 20a and switch to single needle (right pin) from single needle (left pin), because can not once switch, so switch according to following order.
If left pin begins to rise from the needle falling point of n5, then CPU 151 drives the electromagnetic valve 90 of cylinder immediately, make the butt projection 81a of switching part 81 move to the top of removing pin 66, by arrived advancing of clutch components 61 that top dead-centres cause by needle bar 20, two suture needles are moved up and down, become the state (step S6) that to be made by crosspointer.
Then, CPU 151 stops the driving of the each several part of machine spindle motor 101 grades in the moment of a pair of Libra (not shown) the arrival top dead-centre of sewing machine main body 12, and (step S7) made in temporary transient interruption.
Then, the stitching formation of the p2 of section is made in the positive feeding of interrupting a stitching P, do not carry out moving up and down of pin and so that needle downing position is come the mode of the starting position (position of the needle downing position n6 among Figure 11) of the q1 of the section that backstitches of another stitching Q, drive the large pin mechanism 1 that gives as security, cloth is transmitted (step S8: empty feeding step) to positive direction of feed (the B direction in Figure 11 is carried out the cloth feeding).
Then, will switch to single needle (right pin) (step S9) from crosspointer be used to the suture needle 20a, the 20a that make.
When (right pin) switches from crosspointer to single needle, because CPU 151 stops the pin (left pin) among two suture needle 20a, the 20a up, so drive the electromagnetic valve 90 of cylinder, switching part 81 is moved, so that butt projection 81a is located at the top of the follow-up connecting rod 62 that arranges on the needle bar 20 of the left pin that is stopped, on this basis, make 101 counter-rotatings of machine spindle motor, make butt projection 81a and follow-up connecting rod 62 above butt and under the state that follow-up connecting rod 62 is pressed down, machine spindle 101 is stopped.Thus, the clutch components 61 corresponding with the needle bar 20 of left pin retreats, and the suture needle 20a, the 20a that are used for making switch to single needle (right pin) from crosspointer.
Then, CPU 151 judges the stitching of the q1 of the section that backstitches of another stitching Q forms whether finish (step S10).Here, judge that at CPU 151 stitching that backstitches the q1 of section forms (step S10: no) in the unclosed situation, CPU 151 is by driving machine spindle motor 101, pin wobbling motor 105, pin is swung to the downstream (the B direction among Figure 11) of cloth direction of feed, utilize pin to swing the stitching (step S11: the 3rd stitching forms step) of the q1 of the section that backstitches that forms another stitching Q.Here, the stitching of the q1 of the section that backstitches of another stitching Q forms by the pin that falls of the order with needle downing position n6, n7, n8, n9.In addition, in step S11, also can drive the large pin mechanism 1 that gives as security by swinging to cooperate with pin, make and make the spacing growth, perhaps also can replace the pin swing, only form stitching by carrying out feeding by large signature pin mechanism 1.
Formation backstitch the q1 of section stitching during in, whether CPU 151 returns step S10, judge that the stitching backstitch the q1 of section forms to finish.Then, if CPU 151 judges the stitching that backstitches the q1 of section and forms end (step S10: be), then CPU 151 drives the electromagnetic valve 90 of cylinder, switching part 81 is moved, so that the butt of switching part 81 projection 81a is positioned at the top of removing pin 66, two suture needles can be moved up and down, become the state (step S12) that to be made by crosspointer.
Then, CPU 151 makes pin swing to the upstream side (the F direction among Figure 11) of cloth direction of feed, forms the stitching (step S13: the 4th stitching forms step) that (the main section of the making) p3 of section and q2 are made in the consecutive positive feeding of the q1 of the section that backstitches of making the stitching of the p2 of section and another stitching Q with the positive feeding of a stitching P who interrupts.Here, the stitching of the q2 of section is made in the positive feeding that the p3 of section and another stitching Q are made in the positive feeding of a stitching P, forms by the pin that falls of the order with needle downing position n5 and n9, n10 and n11, n12 and n13, n14 and n15, n16 and n17.In addition, make the q2 of section with positive feeding and form simultaneously because the p3 of section is made in positive feeding, so, n5 and n9, n10 and n11, n12 and n13, n14 and n15, n16 and the n17 pin that falls simultaneously respectively.
(action effect)
According to fillet sewing machine 100, control device 5 is by being driven machine spindle motor 101, pin wobbling motor 105, cylinder solenoid valve 90 and the large pin mechanism 1 that gives as security by CPU 151 controls, thereby when two stitchings form, utilize the first stitching to form step, form the stitching of the p1 of the section that backstitches of a stitching P who is positioned at cloth direction of feed downstream in two stitchings.Then, utilize the second stitching to form step, the stitching of the p2 of section is made in formation than the positive feeding of a stitching P in the more close cloth direction of feed of the front end downstream of another stitching Q.Then, by empty feeding step and the 3rd stitching feeding step, interrupt the formation that the p2 of section is made in the positive feeding of a stitching P, form the stitching of the q1 of the section that backstitches of another stitching Q.Then, form step by the 4th stitching, form respectively the stitching that the p3 of section, q2 are made in the consecutive positive feeding of the q1 of the section that backstitches of making the stitching of the p2 of section and another stitching Q with the positive feeding of a stitching P who interrupts.
As mentioned above, owing to have sky feeding step, shown in Figure 13,14, the formation of making the stitching of the p2 of section by the positive feeding of a stitching P of temporary transient interruption, thereby make a stitching P the p1 of the section that backstitches the contrary amount of feeding or reset to reciprocal pin oscillating quantity, so, when the stitching of the q1 of the section that backstitches that forms another stitching Q, can be to form stitching with the same condition of the stitching of the p1 of the section that backstitches of a stitching P.
Thus, because the length of the slot part that should form in holder 2, as long as form and the length that backstitches the same length of section, so even the stitching end is offset mutually, do not need to consider its deflected length yet and form more longways slot part, can be suppressed at the length of the slot part that forms on the holder 2, prevent the strength decreased of holder 2.
In addition, in stitching forms, not necessarily must swing form stitching by pin, also can only use the cloth feeding and form above-mentioned stitching.
In addition, only using pin to swing in the situation that forms stitching, also can carry out simultaneously in order to increase peak separation the cloth feeding.
The variation that＜stitching forms 〉
In addition, the invention is not restricted to above-mentioned embodiment.For example, also can utilize Figure 15 and method shown in Figure 16 to form stitching.In addition, in following explanation, in Figure 15, the section of backstitching is depicted in from positive feeding makes the different position of section, but this only is for convenience of description, in actual making, carries out positive feeding in the mode that overlaps with the section of backstitching and makes.
Specifically, storage control drives machine spindle motor 101 in ROM 152, pin wobbling motor 105, cylinder and the large control program of giving as security pin mechanism 1, so that when two stitchings form, carry out being positioned in two stitchings the formation of stitching of the section that backstitches of a stitching in cloth direction of feed downstream, then, the positive feeding that forms a stitching is made the stitching of section until the starting position of the section that backstitches of another stitching, then, carry out the formation of stitching of the section that backstitches of another stitching, then, the positive feeding that forms another stitching is made the stitching of section until make the position terminal arranged side by side of section with the positive feeding that has formed in the stitching, then, form respectively and to make the continuous positive feeding of the section that backstitches of the stitching of section and another stitching with the positive feeding of a stitching and make the stitching of section.In addition, by CPU 151 executive control programs, form by the following method stitching.
Such as Figure 15 and shown in Figure 16, make beginning switch etc. if pressed by the operator, then the CPU 151 of control device 5 is by executive control program, control machine spindle motor 101, pin wobbling motor 105, cylinder, gives as security the driving of pin mechanism 1 greatly, carries out the formation of stitching.
If CPU 151 executive control programs, then at first, CPU 151 drives the electromagnetic valve 90 of cylinder, and switching part 81 is moved, and makes the suture needle (right pin) among two suture needle 20a, the 20a stop up (step S21).At this moment, CPU 151 is by driving cylinder solenoid valve 90, switching part 81 is moved, so that butt projection 81a is located at the top of the follow-up connecting rod 62 that arranges on the needle bar 20 that is stopped, on this basis, make machine spindle motor 101 counter-rotating, making the top butt of protruding 81a and follow-up connecting rod 62 and under the state that follow-up connecting rod 62 is depressed, machine spindle motor 101 is stopped.Thus, the clutch components 61 corresponding with the needle bar 20 of right pin retreated, the suture needle 20a, the 20a that are used for making switch to single needle (left pin) from crosspointer.
Then, CPU 151 judges whether the formation of stitching of the r1 of the section that backstitches that initial stitching namely is positioned at a stitching R in cloth direction of feed downstream in two stitchings finishes (step S22).Here, judge in the situation that the stitching that finishes to backstitch the R1 of section forms (step S22: no) at CPU 151, CPU 151 is by driving machine spindle motor 101, pin wobbling motor 105, cylinder, pin is swung to the downstream (the B direction among Figure 15) of cloth direction of feed, utilize pin to swing the stitching (step S23: the first stitching forms step) of the r1 of the section that backstitches that forms a stitching R who is positioned at cloth direction of feed downstream in two stitchings.Here, the stitching of the r1 of the section that backstitches of a stitching R forms by the pin that falls of the order with needle downing position w0, w1, w2, w3.In addition, in step S23, also can drive the large pin mechanism 1 that gives as security by swinging to cooperate with pin, make and make the spacing growth, perhaps also can replace the pin swing, only form stitching by carrying out feeding by large signature pin mechanism 1.
Backstitch in formation during the stitching of the r1 of section, CPU 151 returns step S22, judges whether the formation of the stitching that backstitches the r1 of section finishes.Then, continue to backstitch the stitching formation of the r1 of section, until the formation of the stitching of the r1 of the section that backstitches of CPU 151 judgement Sewing machiness finishes.
In step S22, judge that at CPU 151 stitching that backstitches the r1 of section forms in the end situation (step S22: be), CPU 151 is by driving the large pin mechanism 1 that gives as security, transmit cloth to cloth direction of feed (the B direction among Figure 15) on one side, on one side until the starting position of the t1 of the section that backstitches of another stitching T, the stitching of the r2 of section (step S24: the second stitching forms step) is made in the positive feeding that forms a stitching R.Here, the stitching of the rr2 of section is made in the positive feeding of a stitching R, forms by the pin that falls of the order with needle downing position w3, w4, w5, w6, w7, w8.
Form positive feeding make the r2 of section the seam mark during, CPU 151 judges whether to finish positive feeding and makes the stitching of the r2 of section and form (step S25).Then, finish the stitching formation (step S25: be) that the r2 of section is made in positive feeding if CPU 151 judges, then CPU 151 switches the suture needle of using.
Here, when suture needle 20a, the 20a that will make middle use switch to single needle (right pin) from single needle (left pin), because can not once switch, so switch according to following order.
If left pin begins to rise from the needle falling point of w8, then CPU 151 drives the electromagnetic valve 90 of cylinder immediately, make the butt projection 81a of switching part 81 move to the top of removing pin 66, by arrived advancing of clutch components 61 that top dead-centres cause by needle bar 20, two suture needles can be moved up and down, thereby become the state (step S26) that to be made by crosspointer.
Then, CPU 151 stops the driving of machine spindle motor 101 each several parts such as grade in the moment of a pair of Libra (not shown) the arrival top dead-centre of sewing machine main body 12, and (step S27) made in temporary transient interruption.
When switching to single needle (right pin) from crosspointer, CPU 151 is in order to stop up the pin (left pin) among two suture needle 20a, the 20a, drive the electromagnetic valve 90 of cylinder, switching part 81 is moved, so that butt projection 81a is located at the position of the top of the follow-up connecting rod 62 that arranges on the needle bar 20 of the left pin that is stopped, on this basis, make 101 counter-rotatings of machine spindle motor, make butt projection 81a and follow-up connecting rod 62 above butt and under the state that follow-up connecting rod 62 is pressed down, machine spindle 101 is stopped.Thus, the clutch components 61 corresponding with the needle bar 20 of left pin retreats, and the suture needle 20a, the 20a that are used for making switch to single needle (right pin) from crosspointer.
Then, CPU 151 judges the stitching of the t1 of the section that backstitches of another stitching T forms whether finish (step S29).Here, judge at CPU 151 in the not end situation of formation of the stitching that backstitches the t1 of section (step S29: no), CPU 151 is by driving machine spindle motor 101, pin wobbling motor 105, pin is swung to the downstream (the B direction among Figure 15) of cloth direction of feed, utilize pin to swing and form the stitching (step S30: the 3rd stitching forms step) that backstitches the t1 of section.Here, the stitching of the t1 of the section that backstitches of another stitching T forms by the pin that falls of the order with needle downing position w9, w10, w11, w12.And, in step S30, also can drive the large pin mechanism 1 that gives as security by swinging to cooperate with pin, make and make the spacing growth, also can replace the pin swing, only form stitching by carrying out feeding by large signature pin mechanism 1.
Formation backstitch the t1 of section stitching during in, CPU 151 returns step S29, judges whether the formation of the stitching backstitch the t1 of section finishes.Then, if CPU 151 judges the stitching that backstitches the t1 of section and forms end (step S29: be), then CPU 151 is by driving machine spindle motor 101, pin wobbling motor 105, pin is swung to the upstream side (the F direction among Figure 15) of cloth direction of feed, utilize pin to swing, until with a stitching R in the positive feeding that formed make on the position terminal arranged side by side of the r2 of section (in other words, backstitch the starting position of the stitching formation of the t1 of section), the stitching of the t2 of section (step S31: the 4th stitching forms step) is made in the positive feeding that forms another stitching T.Here, the stitching of the t2 of section is made in the positive feeding of another stitching T, forms by the pin that falls of the order with needle downing position w12, w13, w14, w15.
Form positive feeding make the t2 of section stitching during in, CPU 151 judges the stitching that backstitches the t2 of section forms whether finish (step S32).Then, if CPU 151 judges positive feeding and makes the formation of the stitching of the t2 of section and finish (step S32: be), then CPU 151 drives cylinder solenoid valve 90, switching part 81 is moved, so that the butt of switching part 81 projection 81a is positioned at the top of removing pin 66, two suture needles can be moved up and down and becomes the state (step S33) that to be made by crosspointer.
Then, CPU 151 is by driving the large pin mechanism 1 that gives as security, and formation is made the consecutive positive feeding of the r2 of section with the positive feeding of a stitching R and made (originally the making section) r3 of section and make the stitching (step S34: the 5th stitching forms step) that the t3 of section's (originally making section) is made in the consecutive positive feeding of the t2 of section with the positive feeding of another stitching T.Here, the stitching of the t3 of section is made in the positive feeding that the r3 of section and another stitching T are made in the positive feeding of a stitching R, forms by the pin that falls of the order with needle downing position w8 and w15, w16 and w17.In addition, because making the stitching that the r3 of section and positive feeding make the t3 of section, positive feeding forms simultaneously, so, w8 and w15, w16 and the w17 pin that falls simultaneously respectively.
＜action effect 〉
In above-mentioned fillet sewing machine, when forming two stitchings, form step by the first stitching, form the stitching of the r1 of the section that backstitches of a stitching R who is positioned at cloth direction of feed downstream in two stitchings.Then, form step by the second stitching, until on the starting position of the t1 of the section that backstitches of another stitching T, the stitching of the r2 of section is made in the positive feeding that forms a stitching R.Then, by the 3rd stitching feeding step, form the stitching of the t2 of the section that backstitches of another stitching T.Then, form step by the 4th stitching, until with a stitching R in the positive feeding that formed make on the position terminal arranged side by side of the r2 of section, the stitching of the t2 of section is made in the positive feeding that forms another stitching T.Then, form step by the 5th stitching, form respectively the positive feeding of making the stitching of the r2 of section and another stitching T with the positive feeding of a stitching R who interrupts make the t2 of section mutually continuously positive feeding make the stitching of the r3 of section, t3.
By forming stitching with this method of sewing, form step and temporarily interrupt the formation that the stitching of the r2 of section is made in the positive feeding of a stitching R by having the second stitching, make a stitching R the r1 of the section that backstitches the contrary amount of feeding or reset to reciprocal pin oscillating quantity, so, when the stitching of the t1 of the section that backstitches that forms another stitching T, can be to form stitching with the same condition of the stitching of the r1 of the section that backstitches of a stitching R.
Thus, because the length of the slot part that should form in holder 2, as long as form and the length that backstitches the same length of section, so even the stitching end is offset mutually, do not need to consider its deflected length yet and form more longways slot part, can be suppressed at the length of the slot part that forms on the holder 2, prevent the strength decreased of holder 2.
In addition, in stitching forms, not necessarily must swing form stitching by pin, also can only use the cloth feeding and form above-mentioned stitching.
In addition, only using pin to swing in the situation that forms stitching, also can use simultaneously in order to increase peak separation the cloth feeding.
＜other 〉
In addition, present embodiment is not limited to above-mentioned embodiment.In the single needle shut-down mechanism in the above-described embodiment, because carry out crosspointer by a cylinder switches, so when switching to single needle (right pin) from single needle (left pin), need to temporarily switch to crosspointer, switch to again single needle, but also can be for example shown in patent documentation 1 (JP 4-52160 communique), using separately independently, cylinder carries out stopping of each pin.Like this, do not need temporarily to switch to crosspointer, although number of components increases, can improve operability.
Claims (4)
1. fillet sewing machine, it has:
Needle bar mechanism, it has two needle bars that support a suture needle in each lower end, utilizes spindle drive motor that two needle bars are moved up and down and can form two stitchings;
The single needle shut-down mechanism, it drives by switching driving body, aforementioned two needle bars can be remained on respectively lifting position;
Holder, it remains on filler rod cloth on the main cloth, and the leading section in cloth direction of feed downstream forms a pair of slot part that two aforementioned suture needles can be run through;
The large pin mechanism that gives as security, it has across aforementioned holder and descends in both sides and press a pair of large presser feet that keeps main cloth and filler rod cloth, is driven and main cloth and filler rod cloth are transmitted along the cloth direction of feed by feed motor; And
Control module, it is controlled aforementioned spindle drive motor, aforementioned feed motor and switches driving body,
The front end of the cloth direction of feed of aforementioned two stitchings and the position of rear end are different on the cloth direction of feed, and form the backward stitch that is made of regulation pin inverse of a number feeding stitching,
It is characterized in that,
When aforementioned control module forms at aforementioned two stitchings, carry out the following control of making: carry out being positioned in aforementioned two stitchings the formation of stitching of the section that backstitches of a stitching in cloth direction of feed downstream, then, section is made in the positive feeding of a stitching of formation, be positioned at the stitching with respect to the cloth direction of feed downstream of another stitching front end, then, the stitching that interrupts the positive feeding section of a stitching forms and carries out the formation of stitching of the section that backstitches of another stitching, then, form and to make the stitching of section with the positive feeding of an aforementioned stitching that interrupts respectively and the stitching of section is made in the consecutive positive feeding of the section that backstitches of another stitching.
2. fillet sewing machine as claimed in claim 1 is characterized in that,
Aforementioned needle bar mechanism has by the pin wobbling motor and drives aforementioned two needle bars and make its structure that swings along the cloth direction of feed respectively,
Aforementioned control module is by the aforementioned pin wobbling motor of control, aforementioned spindle drive motor, aforementioned feed motor and switch driving body, carries out the aforementioned control of making.
3. fillet sewing machine, it has:
Needle bar mechanism, it has two needle bars that support a suture needle in each lower end, utilizes spindle drive motor that two needle bars are moved up and down and can form two stitchings;
The single needle shut-down mechanism, it drives by switching driving body, aforementioned two needle bars can be remained on respectively lifting position;
Holder, it remains on filler rod cloth on the main cloth, and the leading section in cloth direction of feed downstream forms a pair of slot part that two aforementioned suture needles can be run through;
The large pin mechanism that gives as security, it has across aforementioned holder and descends in both sides and press a pair of large presser feet that keeps main cloth and filler rod cloth, is driven and main cloth and filler rod cloth are transmitted along the cloth direction of feed by feed motor; And
Control module, it is controlled aforementioned spindle drive motor, aforementioned feed motor and switches driving body,
The front end of the cloth direction of feed of aforementioned two stitchings and the position of rear end are different on the cloth direction of feed, and form the backward stitch that is made of regulation pin inverse of a number feeding stitching,
It is characterized in that,
When aforementioned control module forms at aforementioned two stitchings, carry out the following control of making: be arranged in the formation of stitching of the section that backstitches of a stitching in aforementioned two stitching cloth direction of feed downstreams, then, the positive feeding that forms a stitching is made the stitching of section until the starting position of the section that backstitches of another stitching, then, carry out the formation of stitching of the section that backstitches of another stitching, then, the positive feeding that forms another stitching make section stitching until with a stitching in the positive feeding that formed make the position terminal arranged side by side of section, then, forming respectively the positive feeding of making the stitching of section and another stitching with the positive feeding of an aforementioned stitching makes the consecutive positive feeding of section and makes the stitching of section.
4. fillet sewing machine as claimed in claim 3 is characterized in that,
Aforementioned needle bar mechanism has by the pin wobbling motor and drives aforementioned two needle bars, makes its structure that swings along the cloth direction of feed respectively,
Aforementioned control module is carried out the aforementioned control of making by controlling aforementioned pin wobbling motor, aforementioned spindle drive motor, aforementioned feed motor and switching driving body.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007036317 | 2007-02-16 | ||
| JP2007-036317 | 2007-02-16 | ||
| JP2007036317 | 2007-02-16 | ||
| JP2007-199474 | 2007-07-31 | ||
| JP2007199474A JP5149557B2 (en) | 2007-02-16 | 2007-07-31 | Sewing sewing machine |
| JP2007199474 | 2007-07-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
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| JP5468236B2 (en) * | 2007-10-31 | 2014-04-09 | Ｊｕｋｉ株式会社 | Sewing sewing machine |
| JP6045392B2 (en) * | 2013-02-25 | 2016-12-14 | Juki株式会社 | sewing machine |
| CN103437074A (en) * | 2013-09-13 | 2013-12-11 | 吴江市菀坪宝得利缝制设备机械厂 | Trace conversion mechanism of industrial zigzag seam sewing machine |
| CN105506867B (en) * | 2014-10-09 | 2019-12-10 | Juki株式会社 | Sewing machine |
| CN111218773B (en) * | 2018-11-23 | 2022-05-03 | 浙江中捷缝纫科技有限公司 | Control method, control device, storage medium and processor of sewing machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1115807A (en) * | 1994-03-31 | 1996-01-31 | 重机公司 | Welt forming device |
| CN1800476A (en) * | 2005-01-07 | 2006-07-12 | 重机公司 | Inserting strip sewing machine |
| CN1814887A (en) * | 2005-01-28 | 2006-08-09 | 重机公司 | Bar embeded sewing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0265894A (en) * | 1988-09-01 | 1990-03-06 | Brother Ind Ltd | Sewing data program device for sewing machine |
| JP2002191887A (en) * | 1999-05-07 | 2002-07-10 | Juki Corp | Needle movement sewing machine |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1115807A (en) * | 1994-03-31 | 1996-01-31 | 重机公司 | Welt forming device |
| CN1800476A (en) * | 2005-01-07 | 2006-07-12 | 重机公司 | Inserting strip sewing machine |
| CN1814887A (en) * | 2005-01-28 | 2006-08-09 | 重机公司 | Bar embeded sewing machine |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2006-212415A 2006.08.17 |
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| CN101245532A (en) | 2008-08-20 |
| JP5149557B2 (en) | 2013-02-20 |
| JP2008220920A (en) | 2008-09-25 |
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