CN103696150B - Sewing machines - Google Patents

Abstract

The invention provides a kind of Sewing machines, it can improve the efficiency of making operation.Sewing machines has cloth pushing table, Poewr transmission mechanism and cloth delivery electric motor.Cloth pushing table supporting cloth conveying teeth.Poewr transmission mechanism makes cloth pushing table carry out the action of the throughput direction along cloth.Cloth delivery electric motor makes Poewr transmission mechanism carry out action.Storage device stores the motion track of cloth conveying teeth and all types of drive patterns be associated with cloth conveying teeth, needle plate, eedle.The CPU of Sewing machines receives the operation instruction inputted for drive pattern.When CPU detect trampled pedal time (S21: yes), from form, read drive pattern (S23).CPU drives cloth delivery electric motor according to the drive pattern read, thus carries out making (S29).Cloth conveying teeth moves along the motion track of the combination being best suited for cloth conveying teeth, needle plate and eedle.

Description

Sewing machines

Technical field

The present invention relates to a kind of Sewing machines that can change the motion track of cloth conveying teeth.

Background technology

There is a kind of Sewing machines that can change the motion track of cloth conveying teeth according to the thickness of cloth, material etc.The motion track of cloth conveying teeth is changed by the driving mechanism of adjustment cloth conveying teeth.Japanese Unexamined Patent Publication No. 42270 Sewing machines disclosed in publication in 2000 has the eccentric cam of the mechanism as the driving mechanism for adjusting cloth conveying teeth.Eccentric cam is located at the control agent for regulating horizontal feed axle.Operator makes control agent rotate the phase place of eccentric adjustment cam thus the motion track of change cloth conveying teeth by manual operations.The motion track of operator without the need to using the instruments such as screwdriver just can change cloth conveying teeth.

Operator, after changing cloth conveying teeth according to the thickness of cloth, in order to make the cloth conveying teeth after replacing move along appropriate motion track, needs the driving mechanism readjusting cloth conveying teeth.For above-mentioned Sewing machines, in order to adjust the driving mechanism of cloth conveying teeth, operator is by the phase place of manual operations adjustment eccentric cam.Operator for make cloth conveying teeth along be suitable for cloth conveying teeth motion track movement adjustment process in spend the time.Therefore, there is operator cannot carry out efficiently making the such problem points of operation.

Summary of the invention

The object of the invention is to, a kind of Sewing machines that can improve the efficiency of making operation is provided.

The Sewing machines of technical scheme 1 has: cloth pushing table, and it supports cloth conveying teeth, and this cloth conveying teeth is used for work feed in the horizontal direction; First actuating unit, it carries out the action along the vertical direction synchronous with the action along the vertical direction of eedle for making above-mentioned cloth pushing table; And second actuating unit, its action for making above-mentioned cloth pushing table carry out in the horizontal direction; Synchronously to carry out and the motion track formed moves work feed along the action of action and above-mentioned second actuating unit based on above-mentioned first actuating unit by making above-mentioned cloth conveying teeth; The feature of this Sewing machines is to have: driving force motor, and it carries out action for making above-mentioned second actuating unit; Storage part, it stores mobile message and multiple drive pattern, this mobile message makes above-mentioned cloth conveying teeth along the mobile message of motion track movement, the plurality of drive pattern is the drive pattern be associated with at least multiple cloth conveying teeth type, and the plurality of cloth conveying teeth type sets for each height of above-mentioned cloth conveying teeth; First acceptance division, it selects the operation instruction of any drive pattern from above-mentioned multiple drive pattern for receiving; And motor control part, the action of itself and above-mentioned first actuating unit correspondingly controls the driving of above-mentioned driving force motor; Above-mentioned motor control part controls the driving of above-mentioned driving force motor; above-mentioned cloth conveying teeth is moved according to the motion track of following cloth conveying teeth; the motion track of this cloth conveying teeth is based on following drive pattern; this drive pattern is in above-mentioned multiple drive pattern that above-mentioned storage part stores, the drive pattern chosen in the operation instruction received by above-mentioned first acceptance division.

Therefore, the drive pattern of multiple cloth conveying teeth types that Sewing machines can easily set according to each height be suitable for for cloth conveying teeth drives driving force motor, makes the second actuating unit carry out action.Sewing machines can, after replacing cloth conveying teeth, make the cloth conveying teeth after replacing move rightly.Operator no longer for a change cloth conveying teeth motion track and spend the time.Therefore, Sewing machines can make that operator's make operation high efficiency.

The feature of the Sewing machines of technical scheme 2 is, this Sewing machines has allows when above-mentioned eedle carries out action along the vertical direction the needle plate that above-mentioned eedle passes, the drive pattern that above-mentioned storage part stores above-mentioned mobile message and is associated with above-mentioned cloth conveying teeth type and multiple needle plate type, the plurality of needle plate type sets for each thickness of above-mentioned needle plate.The motion track of the best of cloth conveying teeth correspondingly can change with the thickness of needle plate.Sewing machines still can drive driving force motor to make the mode of cloth conveying teeth work feed rightly changing after needle plate.

The feature of the Sewing machines of technical scheme 3 is, the drive pattern that above-mentioned storage part stores above-mentioned mobile message and is associated with above-mentioned cloth conveying teeth type and multiple eedle type, and the plurality of eedle type sets for each size of above-mentioned eedle.The motion track of the best of cloth conveying teeth also correspondingly can change with the size of eedle.Sewing machines still can drive driving force motor to make the mode of cloth conveying teeth work feed rightly changing after eedle.

The feature of the Sewing machines of technical scheme 4 is, the drive pattern that above-mentioned storage part stores above-mentioned mobile message and is associated with above-mentioned cloth conveying teeth type, above-mentioned needle plate type and multiple eedle type, the plurality of eedle type sets for each size of above-mentioned eedle.The motion track of the best of cloth conveying teeth also correspondingly can change with the size of eedle.Sewing machines still can drive driving force motor to make the mode of cloth conveying teeth work feed rightly changing after eedle.

The feature of the Sewing machines of technical scheme 5 is, this Sewing machines has main motor, this main motor is used for main shaft is rotated, this main shaft makes above-mentioned eedle move up and down for driving above-mentioned eedle, the drive pattern that above-mentioned storage part stores above-mentioned mobile message and is associated with drive condition and the above-mentioned cloth conveying teeth type of above-mentioned main motor.The appropriate motion track of cloth conveying teeth correspondingly can change with drive conditions such as the most high rotation speeds of main motor.Sewing machines still can drive main motor to carry out the appropriate mode of making after replacing cloth conveying teeth.

The feature of the Sewing machines of technical scheme 6 is, this Sewing machines has main motor, this main motor is used for main shaft is rotated, this main shaft makes above-mentioned eedle move up and down for driving above-mentioned eedle, the drive pattern that above-mentioned storage part stores above-mentioned mobile message and is associated with the drive condition of above-mentioned main motor, above-mentioned needle plate type and above-mentioned cloth conveying teeth type.The appropriate motion track of cloth conveying teeth correspondingly can change with drive conditions such as the most high rotation speeds of main motor.Sewing machines still can drive main motor to carry out the appropriate mode of making after replacing cloth conveying teeth.

The feature of the Sewing machines of technical scheme 7 is, this Sewing machines has main motor, this main motor is used for main shaft is rotated, this main shaft makes above-mentioned eedle move up and down for driving above-mentioned eedle, the drive pattern that above-mentioned storage part stores above-mentioned mobile message and is associated with the drive condition of above-mentioned main motor, above-mentioned eedle type and above-mentioned cloth conveying teeth type.The appropriate motion track of cloth conveying teeth correspondingly can change with drive conditions such as the most high rotation speeds of main motor.Sewing machines still can drive main motor to carry out the appropriate mode of making after replacing cloth conveying teeth.

The feature of the Sewing machines of technical scheme 8 is, this Sewing machines has main motor, this main motor is used for main shaft is rotated, this main shaft makes above-mentioned eedle move up and down for driving above-mentioned eedle, the drive pattern that above-mentioned storage part stores above-mentioned mobile message and is associated with the drive condition of above-mentioned main motor, above-mentioned needle plate type, above-mentioned eedle type and above-mentioned cloth conveying teeth type.The appropriate motion track of cloth conveying teeth correspondingly can change with drive conditions such as the most high rotation speeds of main motor.Sewing machines still can drive main motor to carry out the appropriate mode of making after replacing cloth conveying teeth.

The feature of the Sewing machines of technical scheme 9 is, above-mentioned first actuating unit has: belt wheel, and itself and above-mentioned main shaft are connected; Upper and lower conveying axis, it can rotate, and has above-mentioned belt wheel in one end; And eccentric part, in the other end of above-mentioned upper and lower conveying axis, there is this eccentric part, the action that this eccentric part makes above-mentioned cloth pushing table carry out along the vertical direction along with the rotation of above-mentioned upper and lower conveying axis.Therefore, the first actuating unit action that cloth pushing table can be made to carry out along the vertical direction along with the driving of main motor.Sewing machines makes cloth pushing table carry out the drive source of action along the vertical direction without the need to arranging in addition.

The feature of the Sewing machines of technical scheme 10,11 is, this Sewing machines has the configuration part for setting the above-mentioned drive pattern that above-mentioned storage part stores, and above-mentioned configuration part has: specifying part, and it is used to specify above-mentioned drive pattern to be set; Second acceptance division, it is for receiving the operation instruction inputted the setting content of the above-mentioned drive pattern specified by above-mentioned specifying part; And memory control unit, the setting content of its above-mentioned drive pattern operation instruction inputted received by above-mentioned second acceptance division obtained is stored to above-mentioned storage part.Operator can input the setting content for the drive pattern making the motion track of cloth conveying teeth appropriate.Therefore, Sewing machines can make cloth conveying teeth move according to more appropriate motion track.

Accompanying drawing explanation

Fig. 1 is the stereogram of Sewing machines 1.

Fig. 2 is the amplification stereogram near eedle 8 and needle plate 15.

Fig. 3 is the stereogram of cloth delivery electric motor 23, cloth feeding mechanism 32 and Poewr transmission mechanism 35.

Fig. 4 is the block diagram of the electrical structure of Sewing machines 1.

Fig. 5 is the figure of the motion track 205 representing cloth conveying teeth 331.

Fig. 6 is the figure of the relation represented between shaft angle and work feed shaft angle.

Fig. 7 is the figure of the motion track 205 representing cloth conveying teeth 332.

Fig. 8 is the figure of the motion track 210 representing cloth conveying teeth 332.

Fig. 9 is the figure representing eedle 8,81.

Figure 10 is the figure of the motion track 215 representing cloth conveying teeth 332.

Figure 11 is the figure of the relation represented between shaft angle and work feed shaft angle.

Figure 12 is the figure representing form 471.

Figure 13 is the figure representing form 472.

Figure 14 is the figure representing form 473.

Figure 15 is the flow chart of form generating process.

Figure 16 is the flow chart of the first selection process.

Figure 17 is the flow chart of the second selection process.

Figure 18 is the flow chart of setting process.

Figure 19 is the flow chart that form selects process.

Figure 20 is the flow chart making process.

Detailed description of the invention

With reference to accompanying drawing, one embodiment of the present invention is described.The structure of Sewing machines 1 is described with reference to Fig. 1 ~ Fig. 3.The upside of Fig. 1, downside, right side, left side, face side, rear side are the upside of Sewing machines 1, downside, right side, left side, front side, rear side respectively.

Sewing machines 1 has support portion 2, column sections 3 and horn portion 4.Support portion 2 is pedestals of Sewing machines 1.Support portion 2 is installed on the rectangular opening (omitting diagram) of workbench 20 upper surface from top.The right-hand member of column sections 3 from support portion 2 extends above vertical direction.Horn portion 4 extends to the left from the upper end of column sections 3, relative with support portion 2 upper surface.Horn portion 4 has presser feet 17 below left part, and presser feet 17 is relative with the needle plate 15 being located at support portion 2 upper surface.Horn portion 4 maintains shank 7 in inside, and shank 7 is provided with eedle 8 in lower end.Shank 7 moves up and down along with the driving of main motor 30.Horn portion 4 has thread take-up tension lever 9 in front, left part.Horn portion 4 has operating portion 10 on top.Operating portion 10 has display part 111 and operated key 112 at front surface.Operated key 112 is containing plus sige (+) key, minus sign (-) key, acknowledgement key, beginning key and end key.Operator is by look at display part 111 while operate operated key 112, by various indicative input Sewing machines 1.Sewing machines 1 has control device 16 below workbench 20, and control device 16 is connected with the pedal 22 of override type by bar 21.Operator can to rear side or front side operating pedal 22.Control device 16 controls the action of Sewing machines 1 according to the direction of operating of pedal 22 and operational ton.

Column sections 3 has main motor 30 on right flank top.Horn portion 4 has main shaft 14 in inside.Main shaft 14 can rotate, and extends in left-right direction in horn portion 4.The right-hand member of main shaft 14 is connected with main motor 30, and the left end of main shaft 14 is connected with shank up-down mechanism (omit and illustrate), and shank up-down mechanism is connected with shank 7.Main motor 30 drives shank 7 to make it move up and down.

As shown in Figure 2, support portion 2 has needle plate 15 at upper surface left end.Needle plate 15 has appearance pin hole 18 in substantially central portion.The lower end of eedle 8 is passed when declining and is held pin hole 18.Needle plate 15 has work feed perforation 19 in the left of appearance pin hole 18, rear, right, front respectively.Work feed perforation 19 is rectangular holes longer in the longitudinal direction.Support portion 2 has shuttle mechanism (omitting diagram) and cloth feeding mechanism 32(reference Fig. 3 in the below of needle plate 15).

With reference to Fig. 3, cloth feeding mechanism 32 is described.W1 represents near cloth conveying teeth 33.Cloth feeding mechanism 32 has cloth delivery electric motor 23, cloth pushing table 34, cloth conveying teeth 33, Poewr transmission mechanism 35, up and down actuating unit 42 etc.Cloth delivery electric motor 23 is configured in the right of cloth pushing table 34.The output shaft 24 of cloth delivery electric motor 23 extends to the left from cloth delivery electric motor 23 main body.Cloth delivery electric motor 23 is stepping motor, and output shaft 24 can be made to rotate in the scope of predetermined angular.Cloth delivery electric motor 23 makes cloth pushing table 34 move along the longitudinal direction.Cloth pushing table 34 is positioned at the below of needle plate 15 and parallel with needle plate 15.Cloth pushing table 34 has cloth conveying teeth 33 near the fore-and-aft direction central authorities of upper surface.The position of cloth conveying teeth 33 is corresponding with the position of work feed perforation 19.Cloth conveying teeth 33 is longer in the longitudinal direction, and its fore-and-aft direction is shorter in length than the fore-and-aft direction length of work feed perforation 19.Cloth conveying teeth 33 has concavo-convex on top.At the concavo-convex of cloth conveying teeth 33 and presser feet 17(with reference to Fig. 2) between clamp cloth.Poewr transmission mechanism 35 has horizontal feed axle 36, first arm 37, effect arm 38, second arm 39 and connecting portion 40.Horizontal feed axle 36 is rotatably supported on support portion 2 on the upper left side of cloth delivery electric motor 23.Horizontal feed axle 36 extends in left-right direction.Output shaft 24 is fixed in one end of first arm 37.First arm 37 is vertical with output shaft 24.One end of effect arm 38 is fixed near the right-hand member of horizontal feed axle 36.Effect arm 38 is vertical with horizontal feed axle 36.Second arm 39 is connected with the other end acting on arm 38 with the other end of the first arm 37 respectively with the state that can rotate.Connecting portion 40 is fixed on the left end of horizontal feed axle 36, extends upward.Connecting portion 40 is rotatably connected with the leading section of cloth pushing table 34.The effect of Poewr transmission mechanism 35 is described.Cloth delivery electric motor 23 makes output shaft 24 rotate in the scope of predetermined angular.Output shaft 24 is positioned at the centre position of slewing area when the state of Fig. 3.When output shaft 24 is positioned at the centre position of slewing area, the first arm 37 and the second arm 39 are arranged in straight line each other in the vertical direction.Therefore, the other end acting on arm 38 is positioned at the upper end position of movable range.When the other end acting on arm 38 is positioned at the upper end position of movable range, the upper-end part of driving of connecting portion 40 is in the front position of movable range.Therefore, cloth pushing table 34 is positioned at the front position of movable range.When output shaft 24 rotates from the clockwise direction of state under state is looked on a left side of Fig. 3, the connecting portion 41 of the first arm 37 and the second arm 39 forwards moves, and the first arm 37 and the second arm 39 are not arranged in straight line each other in the vertical direction.Therefore, the other end acting on arm 38 declines.When the other end acting on arm 38 declines, the counter clockwise direction of horizontal feed axle 36 under state is looked on a left side is rotated.Therefore, the upper end of connecting portion 40 is rearward moved, and cloth pushing table 34 rearward moves.When the one end part that output shaft 24 arrives slewing area is put, the other end of effect arm 38 moves to the lower end position of movable range.When the other end acting on arm 38 moves to the lower end position of movable range, cloth pushing table 34 moves to the back-end location of movable range.When output shaft 24 reverses, counter clockwise direction under state is looked on a left side is rotated, the connecting portion 41 of the first arm 37 and the second arm 39 rearward moves.Along with the movement of connecting portion 41, the less angle in the first arm 37 and the second arm 39 angulation slowly becomes large.Therefore, act on arm 38 the other end on rise.When the other end acting on arm 38 rises, the clockwise direction of horizontal feed axle 36 under state is looked on a left side rotates.Therefore, the upper end of connecting portion 40 is forwards moved, and cloth pushing table 34 forwards moves.When output shaft 24 arrives centre position (position shown in Fig. 3) of slewing area, cloth pushing table 34 is back to the front position of movable range.When the counter clockwise direction of output shaft 24 further under state is looked on a left side is rotated, the first arm 37 and the second arm 39 are not arranged in straight line each other in the vertical direction, and the other end of effect arm 38 declines.Therefore, cloth pushing table 34 rearward moves.When output shaft 24 arrives the position, the other end of slewing area, the other end of effect arm 38 moves to the lower end position of movable range.When the other end acting on arm 38 moves to the lower end position of movable range, cloth pushing table 34 moves to the back-end location of movable range.As mentioned above, output shaft 24 is often put from the one end part of slewing area and is turned to position, the other end, and the horizontal reciprocating swing of cloth pushing table 34 once.

Upper and lower actuating unit 42 has: conveying axis 27, belt wheel 25 and eccentric part 28 up and down.Upper and lower conveying axis 27 is rotatably supported on support portion 2, extends in left-right direction.Upper and lower conveying axis 27 is parallel with horizontal feed axle 36.Upper and lower conveying axis 27 has belt wheel 25 in right part.Belt wheel 25 is by Timing Belt (omitting diagram) and main shaft 14(reference Fig. 1) be connected.Therefore, main shaft 14 and upper and lower conveying axis 27 synchronously rotate.Upper and lower conveying axis 27 has eccentric part 28 at left end.Eccentric part 28 makes cloth pushing table 34 move up and down along with the rotation of upper and lower conveying axis 27.Shank 7 up and down once during in, cloth conveying teeth 33 and cloth pushing table 34 are up and down once.Moving up and down and the mechanical synchronization that moves up and down of cloth conveying teeth 33 of eedle 8.After cloth pushing table 34 rises, the top of cloth conveying teeth 33 is projected into the top of needle plate 15 from work feed perforation 19.Cloth conveying teeth 33 clamps cloth between itself and presser feet 17.When the thickness of cloth is below the thickness of regulation, be positioned at above needle plate 15 in period on the top of cloth conveying teeth 33, eedle 8 can not thrust in cloth.Performing in the process of making, Sewing machines 1 monitors the anglec of rotation of the anglec of rotation of the output shaft of main motor 30 and the output shaft 24 of cloth delivery electric motor 23.Sewing machines 1 during the top of cloth conveying teeth 33 is positioned at above needle plate 15 in drive cloth delivery electric motor 23.Therefore, cloth moves along the longitudinal direction under the state of not thrust by eedle 8.After cloth pushing table 34 declines, cloth conveying teeth 33 is positioned at the below of needle plate 15.When cloth conveying teeth 33 is positioned at the below of needle plate 15, even if cloth conveying teeth 33 moves along the longitudinal direction, cloth also can not move.Eedle 8 during cloth conveying teeth 33 is positioned at the below of needle plate 15 in, cloth forms stitch.As mentioned above, Sewing machines 1 performs the driving of horizontal direction (being fore-and-aft direction in the present embodiment) and the driving of shank 7 of cloth pushing table 34 with different motor.

The electrical structure of Sewing machines 1 is described with reference to Fig. 4.The control device 16 of Sewing machines 1 has CPU44.CPU44 is responsible for controlling Sewing machines 1.CPU44 has ROM45 and RAM46 in inside.CPU44 is connected with storage device 47, I/O interface (hereinafter referred to as I/O) 48 by bus.ROM45 storage is used for executive table generating process (with reference to Figure 15), form selects process (reference Figure 19), make the program etc. of process (with reference to Figure 20).Various values needed for the temporary transient storage execute program of RAM46.Storage device 47 is the Nonvolatile memory devices for storing various value.Storage device 47 stores form 471(with reference to Figure 12), 472(is with reference to Figure 13), 473(is with reference to Figure 14).

I/O48 is electrically connected with pedal 22, operated key 112, drive circuit 51 ~ 53, main encoder 55 and work feed encoder 56.CPU44 can identify direction of operating and the operational ton of pedal 22.CPU44 is received from the operation instruction that operated key 112 input is come in.Drive circuit 51 drives display part 111.The torque instruction signal that drive circuit 52 exports according to CPU44 drives main motor 30.Rotary speed and the anglec of rotation of the output shaft of main encoder 55 pairs of main motors 30 detect, and export testing result to I/O48.The work feed drive singal that drive circuit 53 exports according to CPU44 drives cloth delivery electric motor 23.The output shaft 24(of work feed encoder 56 pairs of cloth delivery electric motor 23 is with reference to Fig. 3) rotary speed and the anglec of rotation detect, and export testing result to I/O48.

The motion track of cloth conveying teeth 33 is described with reference to Fig. 5 ~ Figure 11.Fig. 5, Fig. 7, Fig. 8, Figure 10 represent from state when left sides cloth conveying teeth 33 and needle plate 15.Main shaft 14(is with reference to Fig. 1) and upper and lower conveying axis 27(with reference to Fig. 3) rotate remain under synchronous state, thus make cloth pushing table 34(reference Fig. 3) move up and down.At shank 7(with reference to Fig. 2) up and down once during in, cloth conveying teeth 33(is with reference to Fig. 3) up and down once.The output shaft 24 of cloth delivery electric motor 23 is often put from the one end part of slewing area and is turned to position, the other end, and the horizontal reciprocating swing of cloth pushing table 34 once.Cloth delivery electric motor 23 and main motor 30 synchronously drive.Curve 301(dotted line as Fig. 6) shown in, the anglec of rotation (hereinafter referred to as work feed shaft angle) of the output shaft 24 of cloth delivery electric motor 23 correspondingly changes with the anglec of rotation (hereinafter referred to as upper shaft angle) of the output shaft of main motor 30.CPU44 controls main motor 30 and cloth delivery electric motor 23, makes shaft angle and work feed shaft angle meet the relation of curve 301.Work feed shaft angle changes in the scope of-30 ° ~ 30 °.When work feed shaft angle is 0 °, cloth delivery electric motor 23 is the state shown in Fig. 3.When changing in the scope that upper shaft angle is accumulated at 0 ° ~ 720 °, work feed shaft angle is round trip between-30 ° ~ 30 °.That is, when the output shaft (omit diagram) of main motor 30 revolve take two turns time, the output shaft 24 of cloth delivery electric motor 23 comes and goes and rotates (swing) once.During output shaft 24 comes and goes rotation once, cloth conveying teeth 33 carries cloth twice.When the output shaft of main motor 30 revolve turn around time, eedle 8 is once made.The angle at the two ends of slewing area-30 ° ~ 30 of output shaft 24 ° can change pro rata with cloth feed amount.As shown in Figure 5, cloth conveying teeth 33 moves along the elliptoid motion track 205 under side-looking state according to the order of state 203,202,201,204.When the corresponding relation of upper shaft angle and work feed shaft angle is that curve 301(is with reference to Fig. 6) on the relation shown in some 301A, 301B, 301C, 301D each point time, the position of cloth conveying teeth 33 lays respectively at motion track 205(with reference to Fig. 5) on position 301A, 301B, 301C, 301D.When CPU44 control main motor 30 and cloth delivery electric motor 23 make the corresponding relation of upper shaft angle and work feed shaft angle be changed to a some 301B from a 301A time, cloth conveying teeth 33 moves forward in the downside of needle plate 15.Cloth conveying teeth 33, owing to being positioned at the downside (such as state 201,204,203) of needle plate 15, does not therefore contact with cloth.Therefore, cloth conveying teeth 33 does not have work feed.When CPU44 control main motor 30 and cloth delivery electric motor 23 make the corresponding relation of upper shaft angle and work feed shaft angle be changed to a some 301C from the some 301B curve 301 time, the top of cloth conveying teeth 33 is moved towards the rear in the upside of needle plate 15.The top of cloth conveying teeth 33, owing to being positioned at the upside (such as state 202) of needle plate 15, therefore contacts with the cloth on needle plate 15.Therefore, cloth conveying teeth 33 rearward work feed.Equally, when CPU44 control main motor 30 and cloth delivery electric motor 23 make the corresponding relation of upper shaft angle and work feed shaft angle be changed to a some 301D from a 301C time, cloth conveying teeth 33 moves forward in the downside of needle plate 15.When CPU44 control main motor 30 and cloth delivery electric motor 23 make the corresponding relation of upper shaft angle and work feed shaft angle be changed to a some 301A from a 301D time, the top of cloth conveying teeth 33 is moved towards the rear in the upside of needle plate 15.Therefore, cloth conveying teeth 33 rearward work feed.Eedle 8 during cloth conveying teeth 33 is arranged in the below of needle plate 15 in thrust cloth, cloth forms stitch.

Operator changes cloth conveying teeth 33, needle plate 15, eedle 8 according to the kind (thickness, material etc.) of cloth to be made sometimes.Specifically, when making thicker cloth, compared with when making thinner cloth, operator will use the cloth conveying teeth 33 that concavo-convex height is larger.Operator, when making thinner cloth, uses cloth conveying teeth 331(that short transverse size is less with reference to Fig. 5).Operator, when making thicker cloth, uses the larger-size cloth conveying teeth 332(of short transverse with reference to Fig. 7, Fig. 8).When making thicker cloth, operator can increase presser feet 17(usually with reference to Fig. 2) by the pressure of compress.The needle plate 15 that operator uses the thickness (hereinafter referred to as thickness of slab) of plate different according to pressure.Operator, when making thinner cloth, uses the less needle plate 151(of thickness of slab with reference to Fig. 5).Operator, when making thicker cloth, uses the larger needle plate 152(of thickness of slab with reference to Fig. 7, Fig. 8).

Fig. 7 represent cloth conveying teeth 332 is installed on cloth pushing table 34(with reference to Fig. 3) and needle plate 152 is installed time situation.Compared with cloth conveying teeth 331, cloth conveying teeth 332 concavo-convex larger in short transverse (above-below direction).The thickness of slab of needle plate 152 is greater than the thickness of slab of needle plate 151.When the state 202 of being in, compared with cloth conveying teeth 331, the part that cloth conveying teeth 332 is projected into top from work feed perforation 192 is more.Therefore, when cloth conveying teeth 332 moves along the motion track 205 identical with Fig. 5, cloth conveying teeth 332 likely when being in state 201,203 above work feed perforation 192 is projected into.Moving direction in its horizontal direction of cloth conveying teeth 332 changes in the front and back of state 201,203.When cloth conveying teeth 332 before its moving direction is changed to rear from front just above work feed perforation 192 is projected into time, cloth conveying teeth 332 can work feed (hereinafter referred to as anti-work feed) from the rear to the front.When there is anti-work feed, stitch likely can be made to misplace and cause sewing quality to be deteriorated.CPU44 drives main motor 30 and cloth delivery electric motor 23 that cloth conveying teeth 332 is moved along the motion track 210 of Fig. 8.Curve 302(solid line as Fig. 6) shown in, work feed shaft angle is at a 302L and put between 302B, put 302C and put between 302E, between some 302F and some 302H, put 302I and put between 302K constant.Output shaft 24 non rotating in this period.When the corresponding relation of upper shaft angle and work feed shaft angle is for relation shown in the some 302A on a curve 302 ~ 302L each point, the position of cloth conveying teeth 332 lays respectively at motion track 210(with reference to Fig. 8) on position 302A ~ position 302L.When CPU44 control main motor 30 and cloth delivery electric motor 23 make the corresponding relation of upper shaft angle and work feed shaft angle be changed to a some 302B from a 302A time, cloth conveying teeth 332 moves downwards in the downside of needle plate 15.Because CPU44 does not make the output shaft 24 of cloth delivery electric motor 23 rotate, therefore, cloth conveying teeth 332 does not move along the longitudinal direction.When CPU44 control main motor 30 and cloth delivery electric motor 23 make the corresponding relation of upper shaft angle and work feed shaft angle be changed to a some 302C from a 302B time, cloth conveying teeth 332 moves forward in the downside of needle plate 15.Cloth conveying teeth 332, owing to being positioned at the downside of needle plate 15, does not therefore contact with cloth.Therefore, cloth conveying teeth 332 does not have work feed.When CPU44 controls main motor 30 and cloth delivery electric motor 23 makes the corresponding relation of upper shaft angle and work feed shaft angle change according to the order of a 302C, some 302D, some 302E, the top of cloth conveying teeth 332 moves to top below needle plate 15.Because CPU44 does not make the output shaft 24 of cloth delivery electric motor 23 rotate, therefore cloth conveying teeth 332 does not move along the longitudinal direction.When CPU44 control main motor 30 and cloth delivery electric motor 23 make the corresponding relation of upper shaft angle and work feed shaft angle be changed to a some 302F from a 302E time, the top of cloth conveying teeth 332 is moved towards the rear in the upside of needle plate 15.Because cloth conveying teeth 332 is positioned at the upside of needle plate 15, therefore cloth conveying teeth 332 contacts with the cloth on needle plate 15.Therefore, cloth conveying teeth 332 rearward work feed.When CPU44 control main motor 30 and cloth delivery electric motor 23 make the corresponding relation of upper shaft angle and work feed shaft angle be changed to a some 302G from a 302F time, cloth conveying teeth 33 moves downwards.Because CPU44 does not make the output shaft 24 of cloth delivery electric motor 23 rotate, therefore cloth conveying teeth 33 does not move along the longitudinal direction.CPU44 controls main motor 30 and cloth delivery electric motor 23 and makes the corresponding relation of shaft angle and work feed shaft angle according to 302G, 302H, 302I, 302J, 302K, 302L, 302A(reference Fig. 6) order change.When cloth conveying teeth 33 according to curve 301(with reference to Fig. 6) shown in upper shaft angle and the corresponding relation of work feed shaft angle move time, cloth conveying teeth 33 starts rearward action when laying respectively at position 301B, 301D, starts action forwards when laying respectively at position 301A, 301C.When cloth conveying teeth 33 according to curve 302(with reference to Fig. 6) shown in upper shaft angle and the corresponding relation of work feed shaft angle move time, cloth conveying teeth 33 starts rearward action when laying respectively at position 302E, 302K, starts action forwards when laying respectively at position 302B, 302H.Upper shaft angle (the upper shaft angle at some 302E, 302K, 302B, 302H place) when cloth conveying teeth 33 lays respectively at position 302E, 302K, 302B, 302H is greater than the upper shaft angle (putting the upper shaft angle at 301B, 301D, 301A, 301C place) when cloth conveying teeth 33 lays respectively at position 301B, 301D, 301A, 301C.On curve 302, cloth conveying teeth 33 starts rearward or time of action in front is later than cloth conveying teeth 33 on curve 301 and starts rearward or time of action in front.Below, cloth conveying teeth 33 to be started rearward or time of action in front is called the time started.When the corresponding relation of the upper shaft angle of cloth conveying teeth 33 according to curve 301 and work feed shaft angle moves, cloth conveying teeth 33 is laying respectively at position 301A, 301C(with reference to Fig. 5) time terminate rearward action, terminate action forwards when laying respectively at position 301B, 301D.When the corresponding relation of the upper shaft angle of cloth conveying teeth 33 according to curve 302 and work feed shaft angle moves, cloth conveying teeth 33 is laying respectively at position 302F, 302L(with reference to Fig. 8) time terminate rearward action, terminate action forwards when laying respectively at position 302C, 302I.Upper shaft angle (the upper shaft angle at some 302F, 302L, 302C, 302I place) when cloth conveying teeth 33 lays respectively at position 302F, 302L, 302C, 302I is less than the upper shaft angle (putting the upper shaft angle at 301A, 301C, 301B, 301D place) when cloth conveying teeth 33 lays respectively at position 301A, 301C, 301B, 301D.On curve 302, cloth conveying teeth 33 terminates rearward or time of action in front terminates rearward early than cloth conveying teeth 33 on curve 301 or the time of the action in front.Below, cloth conveying teeth 33 to be terminated rearward or time of action in front is called the end time.With regard to the rotary speed of the output shaft of main motor 30, rotary speed when rotary speed when the upper shaft angle of output shaft according to curve 301 rotates with the corresponding relation of work feed shaft angle and the output shaft upper shaft angle according to curve 302 rotates with the corresponding relation of work feed shaft angle is equal.Therefore, move to time of state 203 from state 201 equal with the time that cloth conveying teeth 33 moves to state 208 from state 206 for cloth conveying teeth 33.The time started of curve 302 is later than the time started of curve 301.End time of curve 302 is early than the end time of curve 301.That is, the traveling time of the cloth conveying teeth 33 driven according to curve 301 is shorter than according to the traveling time of the cloth conveying teeth 33 of curve 302 driving.Therefore, with regard to the translational speed of cloth conveying teeth 33, the translational speed when translational speed when corresponding relation of the upper shaft angle of cloth conveying teeth 33 according to curve 302 and work feed shaft angle moves moves faster than the corresponding relation of the upper shaft angle of cloth conveying teeth 33 according to curve 301 and work feed shaft angle.That is, cloth conveying teeth 332 above being projected into from work feed perforation 192 before just arrive the end time, just arrive the time started after above being projected into from work feed perforation 192.Therefore, cloth conveying teeth 332 can not before moving direction is changed to rear from front above work feed perforation 192 be projected into.Therefore, Sewing machines 1 can suppress the generation of anti-work feed.

As shown in Figure 9, operator, when making thicker cloth, uses thick longer eedle 81 compared with the eedle 8 used when making thinner cloth sometimes.Eedle 81 moves up and down along with the driving of main motor 30.Eedle 81 due to thicker than eedle 8 and long, therefore, from above decline downward time, earlier can thrust in cloth 100 than eedle 8.If cloth conveying teeth 33 is with motion track 205(reference Fig. 5) work feed 100, then eedle 81 can just thrust in cloth 100 before the end time, and sewing quality likely can be caused to be deteriorated.Move along the longitudinal direction under the state that eedle 81 likely can thrust in cloth 100 at eedle 81 because of cloth 100 and bend.When eedle 81 bends, the lower end of eedle 81 likely can contact with needle plate 15 and cause eedle 81 to be fractureed.Sewing machines 1, when using eedle 81, makes cloth conveying teeth 33 along motion track 210(with reference to Fig. 8) move work feed 100.End time when cloth conveying teeth 33 moves along motion track 210 early than cloth conveying teeth 33 along motion track 205(with reference to Fig. 5) mobile time end time.Therefore, Sewing machines 1 can prevent eedle 8 from before cloth 100 along the longitudinal direction mobile end, just thrusting situation in cloth 100, thus sewing quality can be prevented to be deteriorated.Sewing machines 1 can prevent eedle 8 from bending, fractureing.Sewing machines 1, when making thicker cloth, preferably suppresses the rising of sewing speed so that operator easily can adjust the position of cloth.When operator makes thicker cloth, CPU44 limits sewing speed by arranging the upper limit to the rotary speed of main motor 30.Therefore, it is possible to improve operator to carry out the convenience making operation.When making thinner cloth, CPU44 does not arrange the upper limit to the rotary speed of main motor 30.Therefore, operator can perform at short notice and make operation.Motion track 205(is with reference to Fig. 5), 210(is with reference to Fig. 8) be the example of the motion track of cloth conveying teeth 33.CPU44 also can control main motor 30 and cloth delivery electric motor 23 makes cloth conveying teeth 33 move along other motion tracks.Such as CPU44 can control main motor 30 and cloth delivery electric motor 23 makes cloth conveying teeth 33 move along the motion track 215 of Figure 10.When cloth conveying teeth 33 moves along motion track 215, the curve 303(chain-dotted line that the corresponding relation between upper shaft angle and work feed shaft angle is Figure 11) on the relation shown in point.Cloth conveying teeth 332 moves along motion track 215 according to the order of state 213,212,211,214.

As mentioned above, Sewing machines 1, when using different cloth conveying teeths 33, needle plate 15, eedle 8 according to the thickness of cloth, preferably, controls main motor 30 and cloth delivery electric motor 23 with the optimal conditions corresponding to cloth conveying teeth 33, needle plate 15, eedle 8.The storage device 47(of the Sewing machines 1 of present embodiment is with reference to Fig. 4) store form 471(with reference to Figure 12).The appropriate drive condition corresponding to cloth conveying teeth 33, needle plate 15, eedle 8 that CPU44 sets main motor 30 and cloth delivery electric motor 23 with reference to form 471.CPU44 is to drive the mode of main motor 30 and cloth delivery electric motor 23 to control according to the drive condition set.

With reference to Figure 12, form 471 is described.The drive condition (most high rotation speed, upper axle stop angle) of thick to the type of the type of cloth conveying teeth 33, needle plate 15, the type of eedle 8, cloth, main motor 30, the drive condition (motion track) of cloth delivery electric motor 23 and the type of internal memory switch (Japanese: メ モ リ ー ス イ ッ チ) (hereinafter referred to as internal memory SW) store by form 471 explicitly.Form 471 stores the identiflication number for identifying the type that cloth conveying teeth 33, needle plate 15, eedle 8 are respective.With regard to cloth conveying teeth 33, the cloth conveying teeth (such as cloth conveying teeth 331,332) varied in size in each short transverse all has identiflication number.With regard to needle plate 15, the different needle plate (such as needle plate 151,152) of each thickness all has identiflication number.With regard to eedle 8, the eedle (such as eedle 8,81) that each thickness, length are different all has identiflication number.Cloth is thick is the thickness of cloth to be made.Most high rotation speed be operator in order to make sewing speed be maximum operating pedal 22(with reference to Fig. 1) time main motor 30 rotary speed (rotary speed of output shaft).This operation is trampled to operating to greatest extent to rear side by pedal 22.Upper axle stop angle stops upper shaft angle when driving main motor 30.Motion track is that motion track for identifying cloth conveying teeth 33 (such as motion track 205(is with reference to Fig. 5), 210(are with reference to Fig. 7, Fig. 8), 215(is with reference to Figure 10)) identiflication number.Storage device 47(is with reference to Fig. 4) make cloth conveying teeth 33 be stored in form 472(with reference to Figure 13 along the mobile message (corresponding relation of upper shaft angle and work feed shaft angle) of motion track movement by being used for) in.

As shown in figure 13, upper shaft angle stores with work feed shaft angle by form 472 accordingly.CPU44 controls to drive circuit 52,53 output signal the angle that main motor 30 and cloth delivery electric motor 23 make upper shaft angle and work feed shaft angle become form 472 to store.Figure 13 as one be illustrated store and curve 302(with reference to Fig. 6) and motion track 210(reference Fig. 8) form 472 of corresponding upper shaft angle and work feed shaft angle.CPU44 can, by controlling main motor 30 and cloth delivery electric motor 23 according to the form 472 of Figure 13, make cloth conveying teeth 33 move along motion track 210.Storage device 47 stores the form 472 of the identiflication number 1 ~ identiflication number 3 corresponding respectively to the motion track that form 471 stores.CPU44 can make cloth conveying teeth 33 move along many different motion tracks by referring to form 472.Internal memory SWA ~ internal memory SWF is the flag information of invalidating or the set information of various function that represent the various functions that Sewing machines 1 can perform.As shown in figure 14, storage device 47 stores the form 473 that the various functions that can perform Sewing machines 1 are defined.Various function comprises function numbering and setting content.Storage device 47 stores form 473.Whether function numbering 10 represents to make the sewing speed starting to make (within three pins) be the flag information of low speed.Function numbering 12 is the sewing speeds (low speed) starting to make (within three pins).Function numbering 15 distributes to the selection information of the function backstitching (Japanese: Network イ ッ Network バ ッ Network) SW fast.Backstitch SW fast, for the operating portion by pressing regulation, the direction of work feed is switched to rightabout switch.Function numbering 17 represents the identiflication number backstitching and reinforce seam (Japanese: front only め Sew い) pattern of starting starting to make part.Function numbering 18 represents that the ending terminating to make part backstitches the identiflication number reinforcing seam (Japanese: め Sew い stopped by Hou) pattern.The various function that form 473 stores and setting content also can be other functions, other setting contents.The function numbering of various function is not limited to above-mentioned situation.

Form 471 by the combination (hereinafter referred to as drive pattern) of thick to the type of the type of often kind of cloth conveying teeth 33, needle plate 15, the type of eedle 8, cloth, the drive condition of main motor 30, the drive condition of cloth delivery electric motor 23 and internal memory SW and index M(1,2 ... 20) store accordingly.Form 471 by each internal memory SW in thick to the type of the type of cloth conveying teeth 33, needle plate 15, the type of eedle 8, cloth, the drive condition (most high rotation speed, upper axle stop angle) of main motor 30, the drive condition (motion track) of cloth delivery electric motor 23 and internal memory SWA ~ internal memory SWF and index N(1,2 ... 14) store accordingly.

With reference to Figure 15 ~ Figure 20, the process performed by Sewing machines 1 is described.The program executive table generating process (with reference to Figure 15) that the CPU44 of Sewing machines 1 stores according to ROM45, form are selected process (with reference to Figure 19) and are made process (reference Figure 20).CPU44 concurrently executive table generating process, form selects process and makes process.RAM46 stores variable m, n.Variable m is used for selecting to check with index M in process at form generating process, form, and selecting the drive pattern of the index M met.Variable n is used for checking with index N in form generating process, and selects the key element of the index N met.This key element is form any key element in the key element of drive pattern.

With reference to Figure 15, form generating process is described.CPU44 via operated key 112(with reference to Fig. 1) receive start to generate form 471(with reference to Figure 12) instruction after, start form generating process.CPU44 performs first and selects process (with reference to Figure 16) (S1).First selects process to be determine that variable m selects the process of drive pattern.

As shown in figure 16, CPU44 stores 1 and makes variable m and carry out initializing (S40).CPU44 to whether receive select operated key 112+operation instruction of key judges (S41).When CPU44 is judged as the operation instruction receiving selection+key (S41: yes), variable m adds 1 and result is stored to RAM46(S43).CPU44 makes process enter S45.When CPU44 is judged as the operation instruction not receiving selection+key (S41: no), process is made directly to enter S45.CPU44 to whether receive select operated key 112-operation instruction of key judges (S45).When CPU44 is judged as the operation instruction receiving selection-key (S45: yes), from variable m, deducts 1 and result is stored to RAM46(S47).CPU44 makes process enter S49.When CPU44 is judged as the operation instruction not receiving selection-key (S45: no), process is made directly to enter S49.CPU44 judges (S49) the operation instruction whether receiving the acknowledgement key selecting operated key 112.When CPU44 is judged as not receiving the operation instruction selecting acknowledgement key (S49: no), process is made to be back to S41.When CPU44 is judged as receiving the operation instruction selecting acknowledgement key (S49: yes), terminates first and select process, and make process be back to form generating process (with reference to Figure 15).

As shown in figure 15, CPU44, after process (S1) is selected in end first, performs second and selects process (with reference to Figure 17) (S3).Second selects process to be determine that variable n selects the process of any key element formed in the key element of drive pattern.As shown in figure 17, CPU44 stores 1 and makes variable n and carry out initializing (S60).CPU44 judges (S61) the operation instruction whether receiving selection+key.When CPU44 is judged as the operation instruction receiving selection+key (S61: yes), variable n adds 1 and result is stored to RAM46(S63).CPU44 makes process enter S65.When CPU44 is judged as the operation instruction not receiving selection+key (S61: no), process is made directly to enter S65.CPU44 judges (S65) the operation instruction whether receiving selection-key.When CPU44 is judged as the operation instruction receiving selection-key (S65: yes), from variable n, deducts 1 and result is stored to RAM46(S67).CPU44 makes process enter S69.When CPU44 is judged as the operation instruction not receiving selection-key (S65: no), process is made directly to enter S69.Whether CPU44 selects the operation instruction of acknowledgement key to judge (S69) to receiving.When CPU44 is judged as not receiving the operation instruction selecting acknowledgement key (S69: no), process is made to be back to S61.When CPU44 is judged as receiving the operation instruction selecting acknowledgement key (S69: yes), terminates second and select process, and make process be back to form generating process (with reference to Figure 15).

As shown in figure 15, CPU44, after process (S3) is selected in end second, performs setting process (with reference to Figure 18) (S5).As shown in figure 18, CPU44 is with reference to form 471(reference Figure 12), specify the information (S80) index M, N corresponding to identical with variable m, n.CPU44 using the information of having specified as setting object.Below, the information of setting object is called object information.CPU44 judges (S81) the operation instruction whether receiving selection+key.When CPU44 is judged as the operation instruction receiving selection+key (S81: yes), object information adds 1 and result is stored to form 471(S83).CPU44 makes process enter S85.When CPU44 is judged as the operation instruction not receiving selection+key (S81: no), process is made directly to enter S85.CPU44 judges (S85) the operation instruction whether receiving selection-key.When CPU44 is judged as the operation instruction receiving selection-key (S85: yes), from object information, deducts 1 and result is stored to form 471(S87).CPU44 makes process enter S89.When CPU44 is judged as the operation instruction not receiving selection-key (S85: no), process is made directly to enter S89.Whether CPU44 selects the operation instruction of acknowledgement key to judge (S89) to receiving.When CPU44 is judged as not receiving the operation instruction selecting acknowledgement key (S89: no), process is made to be back to S81.When CPU44 is judged as receiving the operation instruction selecting acknowledgement key (S89: yes), process is made to enter S90.Such as when CPU44 is judged as that the index N of object information is 1(cloth conveying teeth) and when receiving the operation instruction of selection+key (S81: yes), the identiflication number for identifying cloth conveying teeth 33 adds 1.When CPU44 is judged as that the index N of object information is 1 and receives the operation instruction of selection-key (S85: yes), from the identiflication number for identifying cloth conveying teeth 33, deduct 1.When CPU44 is judged as that the index N of object information is the most high rotation speed of 5() and when receiving the operation instruction of selection+key (S81: yes), most high rotation speed adds 100.When CPU44 is judged as that the index N of object information is 5 and receives the operation instruction of selection-key (S85: yes), from most high rotation speed, deduct 100.The value 100 adding or deduct is values of the least unit of the rotary speed that can change main motor 30.When CPU44 is judged as that the index N of object information is 7(motion track) and when receiving the operation instruction of selection+key (S81: yes), the identiflication number for identifying motion track adds 1.When CPU44 is judged as that the index N of object information is 7 and receives the operation instruction of selection-key (S85: yes), from the identiflication number for identifying motion track, deduct 1.When CPU44 is judged as that the index N of object information is 8(internal memory SWA) and when receiving the operation instruction of selection+key (S81: yes), the function numbering of internal memory SWA adds 1.When CPU44 is judged as that the index N of object information is 8 and receives the operation instruction of selection-key (S85: yes), from the function numbering of internal memory SWA, deduct 1.Whether whether CPU44 is more than 8 to the index N of object information, be namely that either memory SW in internal memory SWA ~ SWF judges (S90) to object information.When CPU44 is judged as that object information is either memory SW in internal memory SWA ~ SWF (S90: yes), CPU44 judges (S91) the operation instruction whether receiving selection+key again.When CPU44 is judged as the operation instruction receiving selection+key (S91: yes), set information adds 1 and result is stored to form 471(S93).CPU44 makes process enter S95.When CPU44 is judged as the operation instruction not receiving selection+key (S91: no), process is made directly to enter S95.CPU44 judges (S95) the operation instruction whether receiving selection-key.When CPU44 is judged as the operation instruction receiving selection-key (S95: yes), from set information, deducts 1 and result is stored to form 471(S97).CPU44 makes process enter S99.When CPU44 is judged as the operation instruction not receiving selection-key (S95: no), process is made directly to enter S99.Whether CPU44 selects the operation instruction of acknowledgement key to judge (S99) to receiving.When CPU44 is judged as not receiving selection acknowledgement key (S99: no), process is made to be back to S91.When CPU44 is judged as receiving the operation instruction selecting acknowledgement key (S99: yes), end setup process, and make process be back to form generating process (with reference to Figure 15).Such as when CPU44 is judged as that the index N of object information is 8(internal memory SWA), index M being when being 1 and receiving the operation instruction of selection+key (S91: yes), even if make function numbering 10 start to make effectively with low speed.When CPU44 is judged as that the index N of object information is 8, index M is 1 and receives the operation instruction of selection-key (S95: yes), it is invalid to make to start to make with low speed.When CPU44 is judged as that the index N of object information is 9(internal memory SWB), index M being when being 7 and receiving the operation instruction of selection+key (S91: yes), namely start in function numbering 12 the low speed speed of making adds 100.When CPU44 is judged as that the index N of object information is 9, index M is 7 and receives the operation instruction of selection-key (S95: yes), from deduct 100 in the low speed speed of making.

As shown in figure 15, whether CPU44, after setting process (with reference to S5) terminates, selects the operation instruction of the end key of operated key 112 to judge (S7) to receiving.When CPU44 is judged as not receiving the operation instruction selecting end key (S7: no), process is made to be back to S1.When CPU44 is judged as receiving the operation instruction selecting end key (S7: yes), terminate form generating process.

As mentioned above, CPU44 can by perform setting process change be stored in form 471(with reference to Figure 12) in drive pattern in setting content.Therefore, operator easily can be changed by the drive condition inputted by operated key 112 for making main motor 30 and cloth delivery electric motor 23 and cloth conveying teeth 33, needle plate 15, eedle 8 correspondingly carry out action be rightly stored in form 471(with reference to Figure 12) in drive pattern in setting content.CPU44, when executive table generating process, also can show cloth conveying teeth 33, needle plate 15, the combination of type of eedle 8 and the motion track of cloth conveying teeth 33 at display part 111.Operated key 112 also can have numerical key.Operator by numbering by numerical key input, thus can input index M, index N, the motion track of cloth conveying teeth 33, the flag information etc. of internal memory SW.

Illustrate that form selects process with reference to Figure 19.CPU44 has been stored in form 471(with reference to Figure 12 receiving selection via operated key 112) in the instruction of drive pattern time, start form and select process.CPU44 performs first and selects process (with reference to Figure 16) (S11).First select performed by the S1 of process and form generating process (reference Figure 15) first select to process identical.CPU44 selects process by execution first, and the variable m corresponding with the operation undertaken by operated key 112 is stored to RAM46.Select after process terminates first, whether CPU44 selects the operation instruction of end key to judge (S13) to receiving.When CPU44 is judged as not receiving the operation instruction selecting end key (S13: no), process is made to be back to S11.When CPU44 is judged as receiving the operation instruction selecting end key (S13: yes), terminates form and select process.CPU44, when executive table selects process, also can show the combination of type of cloth conveying teeth 33, needle plate 15, eedle 8 accordingly at display part 111 and index M.If operator look at display part 111 while select+the index M corresponding with being arranged on the cloth conveying teeth 33 of Sewing machines 1, needle plate 15, eedle 8 input to Sewing machines 1 by key or-key.When operated key 112 has numerical key, operator also can input index M by numerical key.

Illustrate with reference to Figure 20 and make process.After the electric power starting of Sewing machines 1, CPU44 starts to make process.Whether CPU44 judges (S21) detecting to rear side pushes pedals 22.When CPU44 is judged as pushes pedals 22 not detected (S21: no), process is made to be back to S21.When CPU44 is judged as pushes pedals 22 being detected (S21: yes), with reference to form 471(with reference to Figure 12).CPU44 reads the drive pattern (S23) of the main motor 30 index M corresponding to identical with the variable m be stored in RAM46 and cloth delivery electric motor 23.CPU44 reads the form 472(corresponding with the identiflication number of the motion track in the drive pattern read with reference to Figure 13) (S23).CPU44 controls main motor 30 and cloth delivery electric motor 23(S29 according to the form 472 corresponding with the drive pattern read in S23).Sewing machines 1 performs and makes.Specific as follows.CPU44 detects the operational ton of pedal 22, and in order to drive main motor 30 with the speed corresponding to operational ton to drive circuit 52 Driving Torque command signal.CPU44 main encoder 55 detects upper shaft angle.CPU44, according to the work feed shaft angle in the upper shaft angle detected and the form 472 corresponding with the drive pattern read in S23, exports work feed drive singal to drive circuit 53.Cloth conveying teeth 33 moves along the motion track formed in drive pattern.When the rotary speed corresponding to the operational ton of pedal 22 of the output shaft of main motor 30 reaches the most high rotation speed in the drive pattern being formed in and reading in S23, even if increase further the operational ton of pedal 22, the rotary speed of the output shaft of main motor 30 also can be maintained most high rotation speed by CPU44.CPU44 outputs signal to drive circuit 52,53, controls main motor 30 and cloth delivery electric motor 23, thus realizes various function according to the internal memory SW be formed in the drive pattern that reads in S23.Whether CPU44 terminates to judge (S31) to the operation of pushes pedals 22.At the end of CPU44 is judged as the operation not of pushes pedals 22 (S31: no), process is made to be back to S29.CPU44 proceeds to make.At the end of CPU44 is judged as the operation of pushes pedals 22 (S31: yes), to drive circuit 52 Driving Torque command signal, main motor 30 is made to stop at upper axle stop angle in the drive pattern being formed in and reading in S23.Stop under the state of main motor 30 axle stop angle on upper shaft angle is.CPU44 exports work feed drive singal to drive circuit 53, and cloth delivery electric motor 23 and main motor 30 are synchronously stopped.Cloth delivery electric motor 23 stops (S33).CPU44 makes process be back to S21.When the power-off of Sewing machines 1, CPU44 terminates to make process.

As mentioned above, form 471,472 is stored in storage device 47 by Sewing machines 1.CPU44 specifies the drive pattern of type being suitable for cloth conveying teeth 33, needle plate 15, eedle 8 by referring to form 471,472.CPU44 drives main motor 30 and cloth delivery electric motor 23 according to the drive pattern of having specified.Therefore, Sewing machines 1 suitably can suppress the situation that anti-work feed occurs after changing cloth conveying teeth 33, needle plate 15.Sewing machines 1 can suitably prevent the eedle 8 when main motor 30 stops from contacting with cloth.Operator replacing cloth conveying teeth 33, needle plate 15, after eedle 8, no longer for a change cloth conveying teeth 33 motion track and spend the time.Therefore, Sewing machines 1 can make that operator's make operation high efficiency.

The motion track of the best of cloth conveying teeth 33 correspondingly can change with the type of at least one in cloth conveying teeth 33, needle plate 15 and eedle 8.Sewing machines 1 can drive main motor 30 and cloth delivery electric motor 23 by referring to form 471,472, makes still can make cloth conveying teeth 33 work feed rightly after changing at least one in cloth conveying teeth 33, needle plate 15 and eedle 8.Sewing machines 1 can make cloth conveying teeth 33 move along the motion track of the best.

The drive condition formed in drive pattern is not limited to the highlyest rotate back to speed, upper axle stop angle and motion track.Drive pattern also only can comprise motion track.Drive pattern also can comprise other drive conditions (such as torque characteristics etc.) of main motor 30 and cloth delivery electric motor 23.

Form 471 also can define the drive pattern only making the combination of the type of cloth conveying teeth 33 corresponding with main motor 30 and cloth delivery electric motor 23.Form 471 also can store the drive pattern only making the combination of the type of cloth conveying teeth 33 and needle plate 15 corresponding with main motor 30 and cloth delivery electric motor 23.Form 471 also can store the drive pattern only making the combination of the type of cloth conveying teeth 33 and eedle 8 corresponding with main motor 30 and cloth delivery electric motor 23.Form 471 ~ form 473 also can be stored in the storage device except storage device 47 of CPU44 inside, or is stored in the storage device of the outside be connected with Sewing machines 1.

CPU44 also can to carry out the rotary speed corresponding to the operational ton of pedal 22 of the output shaft of the mode determination main motor 30 driven with most high rotation speed with main motor 30 during pushes pedals 22 to greatest extent operator.

Upper and lower actuating unit 42 is examples for the first actuating unit of the present invention.Poewr transmission mechanism 35 is examples for the second actuating unit of the present invention.Cloth delivery electric motor 23 is examples for driving force motor of the present invention.The storage device 47 storing form 471,472 is examples for storage part of the present invention.The CPU44 carrying out form selection process is an example of the first acceptance division of the present invention.The CPU44 carrying out the process of S29, S33 is an example of motor control part of the present invention.The CPU44 carrying out setting process (with reference to Figure 18) is an example of configuration part of the present invention.The CPU44 carrying out the process of S80 is an example of specifying part of the present invention.The CPU44 carrying out the process of S81, S85, S91, S95 is an example of the second acceptance division of the present invention.The CPU44 carrying out the process of S83, S87, S93, S97 is an example of memory control unit of the present invention.

Claims (11)

1. a Sewing machines, it has:

Cloth pushing table (34), its supporting cloth conveying teeth (33), this cloth conveying teeth (33) is for work feed in the horizontal direction;

First actuating unit (42), it carries out the action along the vertical direction synchronous with the action along the vertical direction of eedle (8) for making above-mentioned cloth pushing table; And

Second actuating unit (35), its action for making above-mentioned cloth pushing table carry out in the horizontal direction;

Synchronously to carry out and the motion track formed moves work feed along the action of action and above-mentioned second actuating unit based on above-mentioned first actuating unit by making above-mentioned cloth conveying teeth;

The feature of this Sewing machines (1) is to have:

Driving force motor (23), it carries out action for making above-mentioned second actuating unit;

Storage part (47), it stores mobile message and multiple drive pattern, this mobile message makes above-mentioned cloth conveying teeth along the mobile message of motion track movement, the plurality of drive pattern is the drive pattern be associated with at least multiple cloth conveying teeth type, and the plurality of cloth conveying teeth type sets for each height of above-mentioned cloth conveying teeth;

First acceptance division (44), it selects the operation instruction of any drive pattern from above-mentioned multiple drive pattern for receiving; And

Motor control part (44), the action of itself and above-mentioned first actuating unit correspondingly controls the driving of above-mentioned driving force motor;

Above-mentioned motor control part controls the driving of above-mentioned driving force motor; above-mentioned cloth conveying teeth is moved according to the motion track of following cloth conveying teeth; the motion track of this cloth conveying teeth is based on following drive pattern; this drive pattern is in above-mentioned multiple drive pattern that above-mentioned storage part stores, the drive pattern chosen in the operation instruction received by above-mentioned first acceptance division.

2. Sewing machines according to claim 1, is characterized in that,

This Sewing machines has allows when above-mentioned eedle carries out action along the vertical direction the needle plate (15) that above-mentioned eedle passes,

The drive pattern that above-mentioned storage part stores above-mentioned mobile message and is associated with above-mentioned cloth conveying teeth type and multiple needle plate type, the plurality of needle plate type sets for each thickness of above-mentioned needle plate.

3. Sewing machines according to claim 1, is characterized in that,

The drive pattern that above-mentioned storage part stores above-mentioned mobile message and is associated with above-mentioned cloth conveying teeth type and multiple eedle type, the plurality of eedle type sets for each size of above-mentioned eedle.

4. Sewing machines according to claim 2, is characterized in that,

The drive pattern that above-mentioned storage part stores above-mentioned mobile message and is associated with above-mentioned cloth conveying teeth type, above-mentioned needle plate type and multiple eedle type, the plurality of eedle type sets for each size of above-mentioned eedle.

5. Sewing machines according to claim 1, is characterized in that,

This Sewing machines has main motor (30), and this main motor is used for main shaft is rotated, and this main shaft makes above-mentioned eedle move up and down for driving above-mentioned eedle,

The drive pattern that above-mentioned storage part stores above-mentioned mobile message and is associated with drive condition and the above-mentioned cloth conveying teeth type of above-mentioned main motor.

6. Sewing machines according to claim 2, is characterized in that,

This Sewing machines has main motor (30), and this main motor is used for main shaft is rotated, and this main shaft makes above-mentioned eedle move up and down for driving above-mentioned eedle,

The drive pattern that above-mentioned storage part stores above-mentioned mobile message and is associated with the drive condition of above-mentioned main motor, above-mentioned needle plate type and above-mentioned cloth conveying teeth type.

7. Sewing machines according to claim 3, is characterized in that,

This Sewing machines has main motor (30), and this main motor is used for main shaft is rotated, and this main shaft makes above-mentioned eedle move up and down for driving above-mentioned eedle,

The drive pattern that above-mentioned storage part stores above-mentioned mobile message and is associated with the drive condition of above-mentioned main motor, above-mentioned eedle type and above-mentioned cloth conveying teeth type.

8. Sewing machines according to claim 4, is characterized in that,

This Sewing machines has main motor (30), and this main motor is used for main shaft is rotated, and this main shaft makes above-mentioned eedle move up and down for driving above-mentioned eedle,

The drive pattern that above-mentioned storage part stores above-mentioned mobile message and is associated with the drive condition of above-mentioned main motor, above-mentioned needle plate type, above-mentioned eedle type and above-mentioned cloth conveying teeth type.

9. the Sewing machines according to any one of claim 5 ~ 8, is characterized in that,

Above-mentioned first actuating unit has:

Belt wheel (25), itself and above-mentioned main shaft are connected;

Upper and lower conveying axis (27), it can rotate, and has above-mentioned belt wheel in one end; And

Eccentric part (28), has this eccentric part in the other end of above-mentioned upper and lower conveying axis, the action that this eccentric part makes above-mentioned cloth pushing table carry out along the vertical direction along with the rotation of above-mentioned upper and lower conveying axis.

10. the Sewing machines according to any one of claim 1 ~ 8, is characterized in that,

This Sewing machines has the configuration part (44) for setting the above-mentioned drive pattern that above-mentioned storage part stores,

Above-mentioned configuration part has:

Specifying part (44), it is used to specify above-mentioned drive pattern to be set;

Second acceptance division (44), it is for receiving the operation instruction inputted the setting content of the above-mentioned drive pattern specified by above-mentioned specifying part; And

Memory control unit (44), the setting content of its above-mentioned drive pattern operation instruction inputted received by above-mentioned second acceptance division obtained is stored to above-mentioned storage part.

11. Sewing machiness according to claim 9, is characterized in that,

This Sewing machines has the configuration part (44) for setting the above-mentioned drive pattern that above-mentioned storage part stores,

Above-mentioned configuration part has:

Specifying part (44), it is used to specify above-mentioned drive pattern to be set;

Second acceptance division (44), it is for receiving the operation instruction inputted the setting content of the above-mentioned drive pattern specified by above-mentioned specifying part; And

Memory control unit (44), the setting content of its above-mentioned drive pattern operation instruction inputted received by above-mentioned second acceptance division obtained is stored to above-mentioned storage part.