CN1381627A

CN1381627A - Buttonhole machine

Info

Publication number: CN1381627A
Application number: CN02105983A
Authority: CN
Inventors: 洼田次勇; 日塔隆
Original assignee: Juki Corp
Current assignee: Juki Corp
Priority date: 2001-04-13
Filing date: 2002-04-11
Publication date: 2002-11-27
Anticipated expiration: 2022-04-11
Also published as: KR20080007300A; JP5142426B2; DE10262216B4; JP2002306875A; KR20020079597A; DE10215012B4; KR100822504B1; DE10215012A1; KR100850384B1; CN100395393C

Abstract

A buttonhole sewing machine (20) is provided with a cloth presser (70) pressing an object to be sewn, a presser driving means (a cloth presser cylinder 86, an X axis motor 82 and a Y axis motor 83) driving the cloth presser, a movable member (a knife receiver 51 or a cloth cutting knife 52) detachably and vertically movably disposed to a sewing machine arm (33) and a control means (a CPU 13) controlling the drive of the presser driving means. Then, at the time of attaching and detaching the movable member at an elevated position, since the cloth presser is moved to a position to be separated from the movable member by the control means controlling the drive of the presser driving means, the cloth presser does not obstruct the exchange of the movable member and exchange work is facilitated. As a result, this can improve the operability of buttonhole sewing.

Description

Sewing machine for binding buttonhole

Technical field

The present invention relates to a kind of sewing machine for binding buttonhole of when forming buttonhole, lockstitching a border on the periphery at buttonhole.

Background technology

In general, on the cloth of sewn object, form the opening (buttonhole) of linearity and so-called dove eye shape and carry out continuous eyelet, thereby the such Sewing machines (sewing machine for binding buttonhole) that forms buttonhole is widely known by the people at this buttonhole periphery.

This Sewing machines, usually have: on sewn object, forming a pair of rag knife and the Cheng Daotai that buttonhole is provided with in the position from above-below direction clamping sewn object, with cloth pushing table that can the optional position on horizontal plane under surface state that sewn object is placed on it moves and cloth presser that sewn object is pressed in above the cloth pushing table, moves with the cloth pushing table one simultaneously.

As shown in Figure 9, described cloth presser 100 is following structure: have pressure arm 101 and be arranged on presser feet 102 on this pressure arm one side end.The end of pressure arm 101 opposite sides is connected on the cylinder 105 that send step platform 104 belows by a plurality of attaching parts 103, by driving cylinder 105 presser feet 102 is moved along omiting above-below direction.

And, to utilize cloth presser 100 that sewn object is fixed on state on the cloth pushing table 104, among cutter platform and the Qie Butai either party of holding who is installed in head of sewing machine one side descended to the opposing party who is installed in sewing machine main body one side, on sewn object, form buttonhole thus.

In addition, recently, it is known that the transmission device that substitutes electromagnetic valve in the past etc. by motors such as pulse motors drives this sewing machine for binding buttonhole that holds cutter platform or rag knife.

In addition, in the sewing machine for binding buttonhole that can form bight, known have when forming eyelet around buttonhole, while rotating the Sewing machines that shank forms buttonhole, on this Sewing machines, have the spinfunction of when changing suture, utilizing shank, make the suture direction of insertion oriented manipulation personnel of pin hole and the operating means that rotates, operating personnel can be rotated eedle when changing sewing thread by the operation to this operating means.

But, in the ordinary course of things, cloth presser has following problems: because rag knife and Cheng Daotai are arranged on from the position of its left and right sides clamping, so, in the time will consistently with the buttonhole shape that forms changing rag knife and hold the cutter platform, this cloth presser has just become obstacle, thereby can reduce the efficient of changing operation.

In addition, by cut the cloth motor to the Sewing machines that holds cutter platform or rag knife and drive on, when being in the holding cutter platform or rag knife and carry out dismounting of lifting position, if cutting the cloth motor is energized and does not cut off the Sewing machines power supply, then can not come with manual mobile rag knife or hold the cutter platform in order to confirm the installation site, this also be to reduce the reason of changing operating efficiency.

And, when changing suture, except the line end of new suture is passed the method for pin hole, also have a kind of method to be: the suture one as original ground that used at that time pass pin hole and from the hanging wire piece to eedle connection go up midway, for example near the hanging wire piece, cut off, and this cut-off part and new suture joined, stretch the then line end of the suture cut-off parts opposite side that used at that time makes new suture pass pin hole and changes suture.But, practiced shank rotation when changing suture always, owing to just shank is rotated for the suture direction of insertion oriented manipulation person who makes pin hole, so it is very convenient when changing suture with the former method, but when changing suture with the latter's method, just be difficult to suture is moved to the direction opposite with the operator, thereby operability is bad.

Situation in view of the above the object of the present invention is to provide a kind of sewing machine for binding buttonhole that can improve the operability of buttonhole.

Summary of the invention

For addressing the above problem, the present invention's 1 sewing machine for binding buttonhole (20), use: the shank (40) that moves up and down with the fixing state of eedle (41), with cloth presser drive unit (cloth presser oil cylinder 86 by electric driving, X-axis motor 82, y-axis motor 83) can reach along the vertical direction that horizontal direction is provided with movably, and when down position, sewn object is pressed near the sewing position cloth presser (70), with can locate dismounting in head of sewing machine (33), and on sewn object, form the cloth-cutting apparatus (50) of buttonhole by the movable member (holding cutter platform 51 or rag knife 52) that can be provided with is up or down descended, form buttonhole on the thing and around this buttonhole, form whipstitch making; It is characterized in that having for making described cloth presser move the control device (CPU 13) of controlling described cloth presser drive unit to the direction of leaving the movable member that is in lifting position.

1 described sewing machine for binding buttonhole according to the present invention, when the movable member that is in rising is carried out dismounting etc., owing to the driving of cloth presser drive unit is controlled by control device, cloth presser is moved to leave the position that is provided with of movable member, so, when changing movable member, cloth presser can not become obstacle, changes operation and is easy to carry out.

And so-called movable member is meant, for example forms the rag knife (being designated hereinafter simply as " cutting knife ") of linearity and circular hole or is arranged on and the locational in opposite directions cutter platform that holds of this rag knife.Therefore, cutting knife can be set or hold in the cutter platform any one in a side that descends.In this case, as holding the cutter platform, for example can be the rubber-like parts that resin is made, in addition, also can only be configured such that the opening that cutting knife penetrates.

The present invention's 2 sewing machine for binding buttonhole is that it is characterized in that: the moving direction of described cloth presser is for downwards in the present invention's 1 sewing machine for binding buttonhole.

2 described sewing machine for binding buttonhole according to the present invention, can obtain and the present invention's 1 same effect, simultaneously, when the described movable member of dismounting, owing to make cloth presser leave movable member downwards by moving with the common action of cloth presser, so, need not new device be set for mobile cloth presser, can control the manufacturing cost of Sewing machines like this.

The present invention's 3 sewing machine for binding buttonhole is that it is characterized in that: the moving direction of described cloth presser is a horizontal direction in the present invention's 1 sewing machine for binding buttonhole.

3 described sewing machine for binding buttonhole according to the present invention, can obtain and the present invention's 1 same effect, simultaneously, for example, have under the situation that makes the device that the cloth presser along continuous straight runs moves, when the described movable member of dismounting at Sewing machines, can cloth presser be moved by utilizing this device, can make cloth presser leave movable member, therefore need not can control the manufacturing cost of Sewing machines like this for mobile cloth presser is provided with new device.

The present invention's 4 sewing machine for binding buttonhole, be in the present invention's 1 sewing machine for binding buttonhole, it is characterized in that: have by electric driving movable member cut cloth drive unit (cutting cloth motor 85), cut off by described control device and lead to the power supply of cutting the cloth drive unit and can be by manually mobile device being moved up and down.

4 described sewing machine for binding buttonhole according to the present invention, can obtain and the present invention's 1 same effect, simultaneously, owing to can manually move up and down by cutting off the power supply of cloth-cutting apparatus, relying on, therefore to movable fixture, when the described movable member of dismounting, use movable member is descended, can confirm the installation site of movable member like this or cut the cloth position, can form the good buttonhole of precision.

The present invention's 5 sewing machine for binding buttonhole, be in the present invention's 3 sewing machine for binding buttonhole, it is characterized in that: placing the cloth pushing table (60) that along continuous straight runs moves under the sewn object state but have, described cloth presser and cloth pushing table can be integral mobile, and described cloth presser drive unit moves to cloth presser by cloth pushing table mobile and leaves on the position of movable member.

5 described sewing machine for binding buttonhole according to the present invention, can obtain and the present invention's 3 same effects, simultaneously, cloth presser, since can with move for the cloth pushing table of mobile sewn object with being integral, therefore, need not so just can control the Sewing machines manufacturing cost for new device being set in the described movable member time shift of dismounting dynamic pressure cloth mechanism.

The present invention's 6 sewing machine for binding buttonhole, be in the present invention's 1 sewing machine for binding buttonhole, it is characterized in that: have the whirligig (electric rotating machine 84) that described shank is pivoted, the driving of described control device control whirligig makes shank pivot about 180 °.

6 described sewing machine for binding buttonhole according to the present invention, can obtain and the present invention's 1 same effect, simultaneously, by making shank pivot about 180 ° when the described movable member of dismounting, for example be positioned at the operator of Sewing machines front, that is, and for towards operator along cloth feeding direction operation, can be near an own side threading when pin hole is worn suture, so that to wear suture operation easy.

The present invention's 7 sewing machine for binding buttonhole, has the shank (40) that moves up and down with the fixing state of eedle (41), and be set to reach along the vertical direction that horizontal direction moves and near the cloth presser (70) that on the down position sewn object is pressed in the sewing position, with the whirligig (electric rotating machine 84) that makes described shank rotation, with when changing suture, output is made the operating means (switch mode key 90d) of the command signal of described shank Rotate 180 ° by whirligig; It is characterized in that: have with the described operating means of each operation and turn to 180 ° and control the control device (CPU 13) of described whirligig with regard to making described shank.

7 described sewing machine for binding buttonhole according to the present invention, in exchange during suture because each operating operation device just can make shank turn to 180 °, thus can make eedle towards with the corresponding direction of replacing suture method, can carry out the operation of high efficiency replacing suture.Promptly, new suture front end is passed under the situation of pin hole replacing sewing thread, can make the line of pin hole penetrate a side and carry out threading to the operator, and on the suture that ew line is connected use always, change under the situation of suture, make the line of pin hole insert an opposite side of a side, that is, in that being won over line, a side of pulling out suture changes suture at an easy rate under the state of operator's direction.

The present invention's 8 sewing machine for binding buttonhole, be in the present invention's 4 sewing machine for binding buttonhole, it is characterized in that: cloth-cutting apparatus has described cutter platform and the rag knife symmetry and can be set on head of sewing machine and the Sewing machines base station removably and rag knife and hold any one party structure moving up and down in the cutter platform at least up and down of holding; And have at the described rag knife of dismounting or when holding the cutter platform, can cut off the described power supply of cutting the cloth motor, by manually coming mobile rag knife or holding the control device (CPU 13) that the cutter platform is controlled.

8 described sewing machine for binding buttonhole according to the present invention, owing to lead to the power supply of cutting the cloth motor by cut-out, can or hold the cutter platform by manual mobile rag knife, so when movable member is installed, be positioned at close position mutually with manually making rag knife or holding the cutter platform, so just can confirm rag knife or hold the mutual position relation of cutter platform, can form the good buttonhole of precision.

Description of drawings

Fig. 1 is the main position side view of the related Sewing machines of embodiment.

Fig. 2 is the main position side view of the related Sewing machines of embodiment.

Fig. 3 is the main position side view of the related Sewing machines of embodiment.

Fig. 4 is the main position front view of the related Sewing machines of embodiment.

Fig. 5 is the calcspar of expression Sewing machines structure.

Fig. 6 is the schematic diagram of guidance panel.

Fig. 7 is the flow chart of Sewing machines control method.

Fig. 8 is the flow chart of Sewing machines control method.

Fig. 9 is the general cloth presser and the side view of cloth pushing table major part.

Among the figure: 10-control device (CPU), 20-sewing machine for binding buttonhole, 33-head of sewing machine, 40-shank, 41-eedle, 50-cloth-cutting apparatus, 51-Cheng Daotai, 52-rag knife, 60-cloth pushing table, 70-cloth presser, 82-X-axis motor, 83-y-axis motor, 84-whirligig (electric rotating machine), 85-cut cloth drive unit (cutting the cloth motor), 86-cloth presser oil cylinder, 90d-operating means (switch mode key).

The specific embodiment

Followingly sewing machine for binding buttonhole 20 of the present invention is described with reference to accompanying drawing.

As Fig. 1 and shown in Figure 4, in the following description, so-called " above-below direction " is meant the axial of shank 40, and so-called " fore-and-aft direction " is meant cloth feeding direction, and so-called " left and right directions " is meant direction vertical with fore-and-aft direction in horizontal plane.

As Fig. 1 and shown in Figure 5, the drive division 80 that sewing machine for binding buttonhole 20 (hereinafter to be referred as " Sewing machines 20 ") has sewing machine stand 30, shank 40, cloth-cutting apparatus 50, cloth pushing table 60, cloth presser 70 and is made of various actuators, control device 10 is structures that the driving of the various actuators of drive division 80 is controlled.

Sewing machine stand 30 roughly is by the abutment portion 31 of the casing shape that slightly is rectangle and the vertical main part 32 that erects from abutment portion 31 rears one side direction top and the formations such as head of sewing machine 33 of forwards stretching out from vertical main part 32 tops.And, be equipped with to driving the drive division 80 (spindle motor 81 described later, X-axis motor 82 etc.) of each mechanism (shank 40, cloth-cutting apparatus 50, cloth pushing table 60, cloth presser 70) that constitutes Sewing machines 20 in sewing machine stand 30 inside.In addition, the relevant concrete driving method that drives various mechanisms by drive division 80 be altogether known technology, in this detailed.

Shank 40 is configured in the leading section of head of sewing machine 33 along above-below direction, is fixing eedle 41 in its bottom, and can move up and down with eedle 41 one, direction is shaken and can be swayed to the left and right.

Cloth-cutting apparatus 50 have for form on cloth that buttonhole is provided with as movable member hold cutter platform 51 and as the rag knife 52 of fixedly cutting the cloth parts.

Hold cutter platform 51, below head of sewing machine 33, protrude to be provided with downwards, and by being contained in cutting cloth motor 85 and can moving along the vertical direction of head of sewing machine 33 inside.

In addition, it is a plurality of for the formed buttonhole shape of correspondence is provided with to hold cutter platform 51, and can carry out dismounting in head of sewing machine 33 1 sides.Symbol 51a is the screw that holds cutter platform 51 usefulness for installation.

Rag knife 52 and holds cutter platform 51 and is installed in opposite to each other on the abutment portion 31.Cloth is being placed under the state that holds between cutter platform 51 and the rag knife 52, is making and hold cutter platform 51 and move downwards and be involutory, can on cloth, form the buttonhole of stipulating shape with rag knife 52.

Cloth pushing table 60 is that state with face that cloth is placed on it makes the cloth device that moves of left and right directions optional position forwards, backwards.

Cloth pushing table 60 is the rectangular box that approach, and is connected on X-axis motor 82 described later and the y-axis motor 83, and the driving of controlling these motors by control device 10 makes cloth pushing table move to the optional position.So just can on the assigned position that is placed on the cloth on the cloth pushing table 60, form buttonhole, in addition, can also form the bight stitch.

In addition, on cloth pushing table 60, the Sewing machines axis (by the line of the fore-and-aft direction of lower railway on the eedle 41) that is provided with direction extension forwards, backwards is the center, symmetrical right cloth-feeding plate 61 and left cloth-feeding plate 62.

Cloth presser 70 has right cloth presser 71 and left cloth presser 72, and utilize these right cloth pressers 71 and left cloth presser 72 cloth presser on cloth pushing table 60, move simultaneously with cloth pushing table 60 one.And, because right cloth presser 71 and left cloth presser 72 are to be provided with opposite to each other about the center with the Sewing machines axis, have the shape of relative axis symmetry, so only right cloth presser 71 is described in the following description.

Right cloth presser 71 has pressure arm 71a and presser feet 71b.

Pressure arm 71a is propped up on the support portion 63 that is arranged on the cloth pushing table 60 by axle.Axle is propping up the presser feet 71b of slightly rectangular shape plate body on the side end of pressure arm 71a, is connecting by a plurality of attaching parts on the end side on the cloth presser oil cylinder 86 that is arranged on below the cloth pushing table 60.

Thereby can make right cloth presser 71 with driving compress organization cylinder 86 is that the center is rotated in the plane vertical with the work feed face with axle 63a.

And, at the state that right cloth presser 71 is moved below, that is, be the state that the center is rotated counterclockwise pressure arm 71a with an axle 63a shown in Figure 2, presser feet 71b contacts with right cloth-feeding plate 61 formation above the cloth pushing table 60.

Because cloth presser 70 has said structure, so when forming buttonhole, can push down that buttonhole forms the left and right sides partly on the cloth, in addition, when buttonhole, the state with the buttonhole left and right sides of pushing down formation can move with cloth pushing table 60 one.

And, on the X-axis motor 82 that does not show in the drawings, y-axis motor 83, electric rotating machine 84 and the Qie Bu motor 85, be respectively arranged with X-axis origin sensor 82b, the Y-axis origin sensor 83b, rotation origin sensor 84b and the Qie Bu origin sensor 85b that detect origin position.

Below, describe with reference to the calcspar of Fig. 5 formation control device 10.

Control device 10 is made of ROM11, RAM12, CPU13 etc.

On control device 10, be connected with: guidance panel 90, compress switch 91, firing switch 92 by interface (I/F) 14, in addition, also be connected with: by spindle motor 81, X-axis motor 82, y-axis motor 83, electric rotating machine (whirligig) 84, cut the various drive units of the drive division 80 that cloth motor (cutting the cloth drive unit) 85 and cloth presser oil cylinder 86 etc. constitute.

In addition, between interface 14 and spindle motor 81, X-axis motor 82, y-axis motor 83, electric rotating machine 84 and Qie Bu motor 85, be connected to spindle motor drive circuit 81a, X-axis motor-drive circuit 82a, y-axis motor drive circuit 83a, electric rotating machine drive circuit 84a and Qie Bu motor-drive circuit 85a, between interface 14 and cloth presser oil cylinder 86, be connected to cloth presser hydraulic oil cylinder driving electromagnetic valve 86a in order to drive each motor.

In addition, on control device 10, be connected with X-axis origin sensor 82b, Y-axis origin sensor 83b, rotation origin sensor 84b and Qie Bu origin sensor 85b by interface 14.

ROM11, in have the drive controlling program that the driving of each drive unit of drive division 80 is controlled.

RAM12, in have and the predefined various corresponding multiple graph datas described later of shape (making figure) of making, in addition, when with guidance panel 90 change graph datas, store graph data after changing.In addition RAM12 can temporarily store calculate according to described drive controlling program by CPU13, data such as cloth feed amount (stitch data) relevant for example with making stitching.

So-called graph data is meant for example necessary a series of setting data when buttonholes such as formation stitch lengths, pin number.And these data can change arbitrarily on guidance panel 90.

CPU13 according to graph data and the drive controlling program set, calculates the stitch data that is made of the cloth feed amount of each needle falling point and eedle rotation amount etc.Then, according to this stitch data, control each motor etc. by each drive circuit.

In addition, though do not show among the figure, CPU13 can also confirm as to the drive controlling of other component parts of Sewing machiness such as tangent line and rotating shuttle 20 with confirm whether these component parts can operate as normal.

On guidance panel 90, as shown in Figure 6, figure sequence number operating portion 90a, the graph data that shows selecteed stitch figure and the 90b of data manipulation portion that as required graph data is changed of the figure sequence number of promising selection and each stitch figure of demonstration decision, preparation key 90c, the switch mode key 90d that selects that uses as SBR are set when cutter platform 51 and suture S are held in exchange after the various data relevant with buttonhole are set.

Compress switch 91 is the switches when selecting cloth presser 70 to move up and down.

Firing switch 92 is the selector switches when carrying out keyhole.

Spindle motor drive circuit 81 a are provided with for the driving mechanism of shank 40 and rotating shuttle being controlled in the driving of spindle motor 81 by control.And, on spindle motor 81 owing to be provided with the detector (not shown) that detects the eedle position, so, as hereinafter described,, can carry out and the moving and the rotation of shank 40 and rotating shuttle of the cloth pushing table 60 of pin position synchronous according to the stitch data that CPU 13 calculates.

X-axis motor-drive circuit 82a and y-axis motor drive circuit 83a are set for by the driving of controlling X-axis motor 82 and y-axis motor 83 respectively and control the X-direction (left and right directions) of cloth pushing table 60 and moving of Y direction (fore-and-aft direction).

Electric rotating machine drive circuit 84a is for example on the round buttonhole part of eyelet circle buttonhole, makes shank 40 and rotating shuttle rotation drive and be provided with controlling electric rotating machine 84 stitch being formed when radial be.

Cut cloth motor-drive circuit 85a, for the driving of cutting cloth motor 85 with control, make and hold cutter platform 51 and move up and down and be provided with.This drive circuit 85a cuts off when receiving from the motor power shutdown signal of CPU 13 outputs and leads to the power supply of cutting cloth motor 85.Leading under the cut situation of the power supply of cutting cloth motor 85, can make to be connected to cut and hold cutter platform 51 by manually moving up and down on the cloth motor 85.

Fig. 1～belt pulley 87 shown in Figure 4, to hold cutter platform 51 and move up and down and be provided with in order at this moment to make, and be connected by bindiny mechanism not shown in the figures and hold on the cutter platform 51, when leading to the power supply of cutting cloth motor 85 when being cut off, available hand rotates to make and holds cutter platform 51 and move up and down.

Below, with reference to the flow chart of Fig. 7 and Fig. 8, the control method by 10 pairs of Sewing machiness of control device of present embodiment is described.

At first, in main program shown in Figure 7, required various data (step S100) when setting buttonhole by the figure sequence number operating portion 90a of guidance panel 90 and the 90b of data manipulation portion.

Secondly, the operation (step S101) of key 90c is prepared in supervision, and here, when preparation key 90c was switched on (being), cloth presser 70 descended and forms and the contact condition (step S102) above the cloth pushing table 60, and proceeds to step S103.Not the time, turn back to step S100 and once more setting data, up to prepare to be in holding state till key 90c connects always.

In step S103,, utilize each origin sensor to carry out former point retrieval for detecting cloth pushing table 60, shank 40, rotating shuttle, holding origin position such as cutter platform 51.

In step S104, for cloth easily is placed on the cloth pushing table 60, move to cloth pushing table 60 on what is called " placement " position that is located at the place ahead, cloth presser 70 is risen.In addition, under this state, as shown in Figure 1, when seeing Sewing machines 20 from the side, hold cutter platform 51 in lifting position, the pressure arm 71a of cloth presser 70 with hold cutter platform 51, particularly form coincidence status with mounting screw 51a.

In step S106, monitor the operation of switch mode key 90d, that is, under the situation of not operating "No" switch mode key 90d, just in the time need not changing Qie Butai and eedle 41, move to step S108.When "Yes", that is, when switch mode key 90d is operated, move on the switch mode subprogram shown in Figure 8 (step S107) in addition.

In the switch mode subprogram, as shown in Figure 2, at first, cloth presser 70 descends (step S200), cloth pushing table 60 moves on the origin position that is located at the rear, simultaneously, shank 40 and rotating shuttle pivot about 180 ° (step S201) from origin position, cut the power supply (step S202) of cloth motor 85.Monitor the operation (step S203) of switch mode key 90d then.

In the meantime, the operator changes and holds cutter platform 51 and eedle 41 or suture S.In addition, be cut off owing to cut the power supply of cloth motor 85, thus can rely on the cutter platform 51 that holds that is in lifting position hand rotating pulley 87 to move up and down, thus can confirm to hold the installation site of cutter platform 51 or cut the cloth position.

Change after hours,, when the operator will rotate the direction of shank 40 once more, in step S203, connect switch mode key 90d for corresponding with desirable suture variation.In addition, in the time need not rotating the direction of shank 40, just need not operate switch mode key 90d, directly move on to step S207.

Then, in step S204, detect shank 40 whether on origin position.

Here, shank 40 makes shank 40 pivot about 180 ° (step S205) under the "Yes" situation of origin position.Do not rotated when shank 40 under 180 ° the situation of position "No", made shank 40 rotate to (step S206) (with reference to Fig. 3) on the origin position at origin position.

Like this, in step S203, every connection switch mode key 90d once will export and makes shank 40 turn to about 180 ° command signal, therefore, because shank 40 turns to 180 °, so the operator can change eedle 41 or suture S apace.

In step S207, monitor the operation of preparing key 90c, under the situation of access failure preparation key 90c, turn back to step S203, at this moment, prepare to be in holding state till the key 90c up to connecting.

Then, will be in case connect preparation key 90c to cutting cloth motor 85 supply powers (step S208), implementation is to the retrieval of holding cutter platform 51 origin positions (step S209) after changing.

Then, make cloth pushing table 60 move to placement location once more, simultaneously, make shank 40 and rotating shuttle rotate to origin position (step S210).In addition, in step S210, when shank 40 and rotating shuttle then can not be rotated on origin position.

Afterwards, cloth presser 70 is risen (step S211), change the pattern subprogram and finish and turn back to step S106.

As mentioned above, in step S106, under the situation that switch mode key 90d is not switched on, then in step S108, monitor the operation of compress switch 91.Then, situation about not being switched at compress switch 91 moves down into step S106, is in holding state till compress switch 91 is switched on always, and when compress switch 91 was switched on, cloth presser 70 will descend, cloth presser (step S109) on the compress platform.And, be placed on cloth on the cloth pushing table 60 that always is positioned at the fixed position.

At this moment, reappose under the situation of cloth, rise (step S111) by connect compress switch 91 back cloth pressers 70 at step S110, and get back to step S106 in plan.

Then, in step S110, under the situation that compress switch 91 is not switched on, monitor the operation (step S112) of firing switch 92.

In step S112, under the situation that firing switch 92 is not switched on, get back to step S110, till being switched on, firing switch 92 is in holding state always, when firing switch 92 is switched on, hold cutter platform 51 and descend, on the cloth that is crushed on cloth pushing table 60, form buttonhole, and carry out buttonhole (step S113), after finishing, buttonhole turns back to step S114.

In step S114, because cloth pushing table 60, shank 40, rotating shuttle etc. are on the completed present position of buttonhole, so, when making cloth pushing table 60 move to placement cloth position, shank 40 and rotating shuttle are also moved on the origin position.

Then, cloth presser 70 is risen (step S115), and turn back to step S106.

The above a series of control of being implemented by control device for sewing-machine 10 finishes.

If sewing machine for binding buttonhole 20 according to present embodiment, when cutter platform 51 is held in replacing, only connect the words of switch mode key 90d, cloth presser 70 downwards, when seeing from the side in other words, cloth presser 70 moves to and holds the position that cutter platform 51 does not particularly coincide with mounting screw 51a, simultaneously, cloth pushing table 60 moves to origin position, and the cloth presser 70 that is arranged on the cloth pushing table 60 moves to leaving the direction of holding cutter platform 51.Therefore, cloth presser 70 can not become obstacle when cutter platform 51 is held in replacing, and exchange work meeting is easy to carry out.

In addition, because when cloth presser 70 descended, cloth pushing table 60 can move on the origin position always, cloth presser 70 also can move on the position of leaving eedle 41, so can change the operation of suture and threading at an easy rate.

In addition, there is no need to mobile cloth presser 70 is provided with new device, the general cloth pushing table 60 that utilizes common sewing machine for binding buttonhole to have just can make cloth presser 70 leave and hold cutter platform 51.Therefore can control the manufacturing cost of Sewing machines.

In addition, by connecting the switch mode key 90d in the main program, can make shank 40 pivot about 180 °.Therefore, be usually located at the operator in Sewing machines 20 the place aheads, for example when in eedle 41, penetrating suture S, just can like this, change suture operation and can become easy from carry out the threading operation near oneself side.

In addition, when connecting the switch mode key 90d in the switch mode subprogram, can make shank 40 about 180 ° around axle steer at every turn.Therefore, for example when changing suture S, the suture S one as original ground that has used is under the state that passes eedle 41, on its suture S approach, for example: near the hanging wire piece, cut off, and cut-off parts is connected with new suture S end, the suture S cut-off parts end side that pulling has been used makes new suture S pass eedle, even in this case, for example: also can rotate the direction (direction of arrow A in as Fig. 3) that the direction of drawing suture S is become to pull out easily to desirable direction, can improve the operating efficiency of changing suture thus by making eedle 41.

In addition, owing to cut the power supply of cloth motor 85 by cut-out, hold cutter platform 51 and can rely on and manually move up and down, so, for example manually drop near just confirming and the position of rag knife 52 on the position of cutting cloth platform 52, can form the good buttonhole of precision thus holding 51 dependence of cutter platform.

And in the present embodiment, sewing machine for binding buttonhole 20 has cloth pushing table 60, cloth presser 70 also is set to move with this cloth pushing table 60, but does not limit therewith, also can not have cloth pushing table 60.In this case, when holding cutter platform 51, replacing make cloth presser 70 also can improve the operating efficiency of changing operation below moving to.

In addition, in the present embodiment, though to being set to movable member and rag knife 52 be set to fixed part be described holding cutter platform 51.But do not limit therewith, yet can be set to rag knife 52 movable member and be set to fixed part holding cutter platform 51.

In addition, cloth presser 70 is descended, and cloth pushing table 60 is when moving on the origin position, maybe when the power supply of cutting cloth motor 85 is led in cut-out, each operation switch mode key 90d will make shank 40 turn to 180 °, but does not limit therewith, also can moving at cloth presser 70 and cloth pushing table 60, and do not cut off under the situation of leading to the power supply of cutting cloth motor 85, only when operating switch mode key 90d, make shank 40 turn to 180 ° at every turn.

In addition, when cutter platform 51 is held in replacing, cloth presser 70 is descended, and cloth pushing table 60 moves to origin position, but be not only limited to this, for example under the situation that cloth presser 70 and cloth pushing table 60 are moved, cut the power supply of cloth motor 85 by cut-out, also can make and hold cutter platform 51 and rely on and manually move up and down, in addition, at this moment, also can be configured such that the structure of shank 40 rotations.

In addition, in sewing machine for binding buttonhole of the present invention, do not limit the order of buttonhole.That is, not limiting is the so-called first otch of carrying out buttonhole earlier after forming buttonhole on the cloth again around buttonhole, still forms the so-called back otch of buttonhole after carrying out eyelet on the assigned position of cloth again.

In addition, the method for being controlled by 10 pairs of sewing machine for binding buttonhole 20 of control device is not limited only to the method that present embodiment shows, and can change in aim scope of the present invention.

1 described sewing machine for binding buttonhole according to the present invention, because when the movable member that is in lifting position is carried out dismounting, control the driving of compress drive unit by using control device, cloth presser is moved to leave the position of movable member, so cloth presser can not become obstacle when changing movable member, is easy to change operation.

2 described sewing machine for binding buttonhole according to the present invention, can obtain and the present invention's 1 same effect, simultaneously, because when the dismounting movable member, by being moved to the below of common action, cloth presser make cloth presser leave movable member, so, need not new device be set for cloth presser is moved, can control the manufacturing cost of Sewing machines like this.

3 described sewing machine for binding buttonhole according to the present invention, can obtain and the present invention's 1 same effect, simultaneously, for example, have at Sewing machines and to make cloth presser under the situation of the device that horizontal direction moves, when the described movable member of dismounting, can make cloth presser can leave movable member by utilizing this to install mobile cloth presser, need not like this, can control the Sewing machines manufacturing cost for mobile cloth presser is provided with new device.

4 described sewing machine for binding buttonhole according to the present invention, can obtain and the present invention's 1 same effect, simultaneously, owing to lead to the power supply of cutting the cloth drive unit by cut-out, can rely on manually moving-member is moved up and down, so, confirm the installation site of movable member or cut the cloth position with the decline movable member, can form the good buttonhole of precision.

5 described sewing machine for binding buttonhole according to the present invention, can obtain and the present invention's 3 same effects, simultaneously, but because cloth presser and move for the cloth pushing table one of mobile sewn object, so, the new device of mobile cloth presser need not be set when the described movable member of dismounting, like this, controlled machine for sewing manufacturing cost.

6 described sewing machine for binding buttonhole according to the present invention, can obtain and the present invention's 1 same effect, simultaneously, owing to when the described movable member of dismounting, pivot 180 ° by making shank, for example be in the operator on the Sewing machines anterior position, that is, for to the operator who operates along cloth feeding direction, can be when threading from carrying out threading near oneself side, like this, the threading operation just is easy to.

7 described sewing machine for binding buttonhole according to the present invention, in exchange during suture because every operating operation device once just can make shank turn to 180 °, thus can make eedle towards with change the corresponding direction of suture method, can improve the operating efficiency of replacing suture.Promptly, new suture front end is passed under the situation of pin hole replacing sewing thread, can make the line of pin hole penetrate a side and carry out threading to the operator, and on the suture that ew line is connected use always, change under the situation of suture, make the line of pin hole insert an opposite side of a side, that is, a side of pulling out suture can be won over line under the state of operator's direction and change suture at an easy rate.

8 described sewing machine for binding buttonhole according to the present invention, can obtain and the present invention's 4 same effects, simultaneously, owing to lead to the power supply of cutting the cloth motor by cut-out, can rely on manual mobile rag knife or hold the cutter platform, so when movable member is installed, be positioned at close position mutually with manually making rag knife or holding the cutter platform, so just can confirm rag knife or hold the mutual position relation of cutter platform, can form the good buttonhole of precision.

Claims

1. sewing machine for binding buttonhole, use: the shank that moves up and down with the fixing state of eedle, and be set to reach along the vertical direction that horizontal direction moves and sewn object is pressed in when the down position near the sewing position cloth presser by cloth presser drive unit by electric driving, with be set to move up and down and can be descended by the movable member of dismounting when raise-position is put thereon and on sewn object, form the cloth-cutting apparatus of buttonhole by making at the head of sewing machine place, form buttonhole on the thing and around this buttonhole, form whipstitch making; It is characterized in that:

Have for making described cloth presser move the control device of controlling described cloth presser drive unit to the direction of leaving the movable member that is in lifting position.

2. sewing machine for binding buttonhole according to claim 1 is characterized in that: the moving direction that leaves of described cloth presser is the below.

3. sewing machine for binding buttonhole according to claim 1 is characterized in that: the moving direction that leaves of described cloth presser is a horizontal direction.

4. sewing machine for binding buttonhole according to claim 1 is characterized in that: have and cut the cloth drive unit to what described movable member carried out electric driving; Described control device cuts off and leads to the power supply of cutting the cloth drive unit, moves up and down by manually making movable member.

5. sewing machine for binding buttonhole according to claim 3 is characterized in that: have the cloth pushing table that moves with the state along continuous straight runs of placing sewn object; Described cloth presser can be integral mobile with cloth pushing table; Described compress drive unit moves by cloth pushing table, and cloth presser is moved to the direction of leaving movable member.

6. sewing machine for binding buttonhole according to claim 1 is characterized in that: have the whirligig that described shank is pivoted; Driving by described control device control whirligig makes shank pivot about 180 °.

7. sewing machine for binding buttonhole, has the shank that moves up and down with the fixing state of eedle, and be set to reach along the vertical direction that horizontal direction moves and near the cloth presser that on the down position sewn object is pressed in the sewing position, with the whirligig that makes described shank rotation, with when changing suture, output makes described shank rotate the operating means of about 1 80 ° command signal by whirligig; It is characterized in that: have with the described operating means of every operation and once just make described shank turn to about 180 ° and control the control device of described whirligig.

8. sewing machine for binding buttonhole according to claim 4, it is characterized in that: cloth-cutting apparatus has described cutter platform and the rag knife subtend and can be arranged on head of sewing machine and the Sewing machines base station removably and rag knife and hold the structure that any one party in the cutter platform can move up and down at least up and down of holding; And have at the described rag knife of dismounting or when holding the cutter platform, can cut off and lead to the described power supply of cutting the cloth drive unit, by manually coming mobile rag knife or holding the control device that the cutter platform is controlled.