CN1309203A

CN1309203A - Button-sewing machine

Info

Publication number: CN1309203A
Application number: CN 01104567
Authority: CN
Inventors: 园田高久; 冈村昌彦
Original assignee: Juki Corp
Current assignee: Juki Corp
Priority date: 2000-02-16
Filing date: 2001-02-16
Publication date: 2001-08-22
Anticipated expiration: 2021-02-16
Also published as: CN100455709C; JP4642249B2; TW503282B; JP2001300165A

Abstract

Button sewing is performed by optimizing the speed by the control means (30, 31, 32, 35) which determines the rotation speed of the motor 15 on the basis of information of the depth of a flat button or thickness of a marble button to be sewn. Thus, higher productivity is achieved and damage to the button or breaking the needle are reduced.

Description

Button sewing machine

The present invention relates to a kind of button sewing machine, particularly relate to a kind of eedle that makes clasp with respect to moving up and down that is provided with, button sewing machine in the travel mechanism that perpendicular direction moves.

Button sewing machine in the past has the clamping device that is clipped on the sewing and its path that moves up and down with respect to eedle is moved to the clasp that will make on the direction vertical with eedle, when clasp is flat the button, make eedle between the through wires hole of majority or when clasp be that pellet shot from a slingshot is when buckleing, make eedle play pin in order between the through wires hole of its shank and the shank outside, the clasp that makes clip hold mechanism's clamping like this moves.

And, for example resemble and in open the flat 8-71273 of communique number of Japan Patent, show, after the nail catcher operation of having carried out clasp made on sewing, be around the root operation with the suture what is called that the pitch of the laps knotting is reinforced around the seam button, in such button sewing machine, be to improve the operation of a machine efficient, in described nail catcher operation with described to carry out the button sewing machine of nail catcher with different sewing speeds in the root operation known.

But usually, described clip is held mechanism, begins clasp is moved when eedle is extracted above the through wires hole of clasp, and the lateral surface that makes its next through wires hole or shank is to eedle, and this Sewing machines in the past is set at certain speed when nail catcher.

If setting the speed of this Sewing machines is low speed, during the shank broad of or pellet shot from a slingshot button thicker when the flat button of making, the button through wires hole of only having deepened hereto, the rate of climb of eedle is slower, therefore clip was held mechanism and is just begun to move before needle point was deviate from from through wires hole, and the danger of needle point and clasp collision is arranged.

Therefore, if with the speed setting of Sewing machines is at a high speed, when the flat button of making shank thin or the pellet shot from a slingshot button was narrower, the clip that moves with certain speed was held mechanism and is descended moving the eedle that just begins next step before ending, and the danger of needle point and clasp collision is also arranged.

That is,, produced broken needle or hindered the problem of detaining owing to can not carry out the setting of optimum operation speed corresponding to the thickness (degree of depth of through wires hole) of flat button and the conditions such as the degree of depth of pellet shot from a slingshot button through wires hole.And when corresponding to the condition running speed of described clasp very low the time, there have clip to hold the stand-by time of mechanism to be long, and the operation of a machine efficient is bad, does not have superior productive problem to nail catcher with around the root operation.

The present invention is in view of above problem points, and its objective is provides a kind of button sewing machine.This button sewing machine can carry out nail catcher with best sewing speed corresponding to the condition of the clasps such as hole depth of flat thickness of detaining and pellet shot from a slingshot button, to improve operating efficiency and then to improve productivity, can prevent broken needle and wound button simultaneously.

And, another object of the present invention provides a kind of button sewing machine, this button sewing machine is corresponding to the condition of the clasps such as hole depth of flat thickness of detaining (degree of depth of through wires hole) and pellet shot from a slingshot button, can improve operating efficiency by the traveling time point of best clasp and sewing and then improve productivity, prevent broken needle simultaneously and hinder button.

For achieving the above object, the present invention's 1 button sewing machine, it is characterized in that, be provided with running speed, according to the running speed control that is determined the driving of the motor of Sewing machines made the control device (traveling time tables of data, running speed table, ROM31, CPU30) of Sewing machines running simultaneously corresponding to the information decision Sewing machines relevant with the button hole depth direction.

By adopting this structure, because corresponding to the thickness of flat button and the conditions relevant such as hole depth of pellet shot from a slingshot button with the button hole depth direction, can carry out nail catcher with best sewing speed,, can prevent broken needle simultaneously and hinder button so can improve operating efficiency and then improve productivity.

The present invention's 2 button sewing machine, be in the present invention's 1 button sewing machine, be provided with mobile time started point determination device (eedle position detecting device 41, encoder apparatus 42, mobile beginning phase meter ROM43, CPU44) according to the beginning traveling time point of the information decision mobile device relevant with the button hole depth direction, the control device of described Sewing machines begins to drive described mobile device with the mobile time started point that is determined.

If adopt this structure, the thickness (hole depth) owing to corresponding to clasp can move clasp at optimum time point, so, can further prevent broken needle effectively and hinder button.

Below, accompanying drawing and label thereof are carried out simple declaration.

Fig. 1 is the block diagram of the embodiment 1 among the button sewing machine embodiment of the present invention.

Fig. 2 is the guidance panel schematic diagram among the button sewing machine embodiment of the present invention.

Fig. 3 is for making the state diagram of flat button among the button sewing machine embodiment of the present invention.

Fig. 4 makes the state diagram of pellet shot from a slingshot button among the button sewing machine embodiment of the present invention.

Fig. 5 makes the clasp flow chart for embodiment's 1 among the button sewing machine embodiment of the present invention.

Fig. 6 is the block diagram of the embodiment 2 among the button sewing machine embodiment of the present invention.

Fig. 7 makes the clasp flow chart for embodiment's 2 among the button sewing machine embodiment of the present invention.

Fig. 8 is the block diagram of the control circuit example of routine in the past button sewing machine use.

Fig. 9 makes the clasp flow chart for routine button sewing machine in the past.

Figure 10 is when making the flat button of embodiment 1, the ratio key diagram of relation between clasp thickness (the button hole degree of depth) and the eedle action.

Figure 11 is when making the pellet shot from a slingshot button of embodiment 1, the ratio key diagram of relation between shank thickness (the button hole degree of depth) and the eedle action.

Figure 12 makes the flow table of B subprogram for carrying out among the embodiment 2.

Figure 13 is a running speed tables of data of the present invention.

Figure 14 is a mobile beginning phase data table of the present invention.

Among the figure: 14,40-button sewing machine, the 15-electrical motor of sewing machine, 18-imports setting device, and 30,44-CPU, 31,43-ROM, 32-RAM, 35-electrical motor of sewing machine control device, the 36-clip is held the mechanism controls device.

Embodiment

Below, 1 to 4 couple of embodiment 1 describes with reference to accompanying drawing.

Not shown button sewing machine of the present invention, the upward axle of its Sewing machines is connected with the electrical motor of sewing machine 15 among Fig. 1.

The other end of axle on described, be provided with move up and down with respect to sewing with described rotation of going up axle, on the sewing on the not shown cloth platform, carry out nail catcher and around the eedle of root.

And, below described eedle, being provided with the also mobile not shown clip of clamping clasp and holding mechanism, this clip is held mechanism and is moved by the drive motors shown in Fig. 1 17, and the clasp that is held is moved in the vertical direction with the direction that moves up and down with respect to eedle.So, hold mechanism and drive motors 17 has constituted mobile device by this clip.

As shown in Figure 1, the button sewing machine 14 of present embodiment 1 has the input setting device 18 of making the clasp necessary condition for setting.

On described input setting device 18, can import to the kind of sewing thread trace between the selection of clasp kinds such as flat button of flat button in 2 holes and 4 holes and pellet shot from a slingshot button and the button hole and clasp length and width size with buckle the information that thickness (the through wires hole degree of depth) and pellet shot from a slingshot are buckled the length of the relevant button hole depth direction of the through wires hole degree of depth with flat.This input for example, can be undertaken by guidance panel 19 or switch, external communication etc. as shown in Figure 2.On the presentation graphs of described guidance panel 19, show the setting item 20 of setting sewing condition.And as setting content, the kind 21 of the clasp of making shows with image, simultaneously when this button clasp thickness 22 during for flat button, maybe detains shank rugosity when being the pellet shot from a slingshot button when this, and promptly the degree of depth of through wires hole is used numeric representation.

And described guidance panel 19 is provided with moving up and down button 23a, b and determining definite button 24 of its setting and the releasing key 25 that releasing is set when selecting setting item 20.And, shown in guidance panel 19 on also be provided with the clasp thickness 22 that sets of change and the button 26 of hole depth, and the numerical value of setting by these button 26 increases and decreases.

And described button sewing machine 14 has can provide the startup pedal 28 that begins to make indication, and the user begins to drive button sewing machine 14 when stepping on this startup pedal 28.But for example also can use indication such as switch to make beginning, to replace this startup with pedal 28.

Described input setting device 18 is connected with the input unit shown in Fig. 1 (interface) 29 respectively with startup pedal 28.On this input unit 29, connecting the CPU30 that constitutes a control device for sewing-machine part, described input unit 29 will be from the described signal of 18,28 outputs that respectively installs to this CPU30 input.

Described CPU30 is connected with RAM32 with the ROM31 that constitutes a control device for sewing-machine part.

Storing in the used traveling time tables of data in described ROM31, for example, if corresponding to flat button, if the pellet shot from a slingshot of length in length and breadth in hole to hole is buckled when falling pin, per 1 pin of the length between the pin portion that falls outside hole and the shank, clip is held the used traveling time data of mechanism.Described CPU30, corresponding to the clasp information of importing from input setting device 18 (for example, the clasp kind, make kind, spacing etc. in length and breadth), from used traveling time tables of data, select used traveling time data, determine clip to hold the used traveling time of mechanism like this.Used traveling time in this tables of data is that to make the used traveling time of long more per 1 pin of stitch length just long more.

And in described ROM31, a upward axle velocity of rotation data V relevant with the ratio of the hole depth (distance of button hole depth direction) of detaining thickness and pellet shot from a slingshot button corresponding to described used traveling time L peace is with the form storage of velocity of rotation tables of data (Figure 13).

This velocity of rotation tables of data, when the used traveling time to per 1 pin is one regularly, along with the increase of clasp thickness or hole depth, last velocity of rotation slows down.And clasp thickness is a timing, and it is long more that the clip of per 1 pin is held the used traveling time of mechanism, and the velocity of rotation of last axle slows down.

That is, the clasp of, thin thickness near for the spacing of Kong Zhikong, the velocity of rotation of last axle is to the fastest, and clasp far away for the spacing of Kong Zhikong, that thickness is thick, last velocity of rotation is extremely the slowest.

On described CPU30, connecting output device (interface) 33, holding mechanism controls device 36 by electrical motor of sewing machine control device 35 and clip and will export to described electrical motor of sewing machine 15 and described drive motors 17 from the output control signal of CPU30 output.

As the electrical motor of sewing machine control device 35 of drive motor driver, according to driving by the running speed of the Sewing machines that CPU30 determined or stopping described electrical motor of sewing machine 15.

Hold mechanism controls device 36 as the clip of drive motor driver,, in prescribed period of time, drive drive motors 17 with certain speed by described CPU30 control.

And axle is provided with eedle sends position signalling or upper/lower positions signal respectively when upper-lower position eedle position detecting device 41 on the Sewing machines, imports to CPU30 by input unit 29.Should go up position signalling or upper/lower positions signal, when making, be counted, when reaching the pin number that sets, stop the Sewing machines running.

Below, with reference to Fig. 5, the effect of the embodiment 1 that controls with CPU30 is described.

At first, when by button operation, when the sewing condition signal is set in input, begin condition enactment (step S1) to the guidance panel shown in Fig. 2 19.In step S2 to 4, select the clasp kind, select to make kind, carry out the setting of clasp spacing in order.The setting of clasp spacing, for example, shown in Fig. 3, when having the flat button HB of 4 hole H1～H4 to adjacent hole, the centre-to-centre spacing of hole H1, H2 for example, resemble as shown in Figure 22 holes button time to the centre-to-centre spacing in its 2 hole, in the time of the pellet shot from a slingshot button,, respectively their vertical and horizontal spacing is set the distance in the outside from the through wires hole center to shank of shank.

Then, when clasp when to be that 4 holes are flat buckle (step S5), be (step S6) when intersecting (X type) type stitch if make kind for pin about the H1 in Fig. 3 and H3 and H2 and the H4, obtain leg-of-mutton long back gauge, obtain stitch lengths like this, i.e. spacing (step S7).

When clasp is that pellet shot from a slingshot is buckled (step S5) or at Fig. 3 mesopore H1 and H2, H3 when pin is made parallel stitch up and down with H4 (step S6), the vertical and transfer that sets is from as spacing.

According to these settings, in (step S8), hold the traveling time of wanting of mechanism with the used traveling time tables of data decision clip among the ROM31.

That is, in used traveling time tables of data, have corresponding to being clamped in clip needed time when holding clasp in the mechanism and moving by the spacing that in step S5～7, sets.The flat button HB of Figure 10 for example, the centre-to-centre spacing L of its button hole Ha, Hb is equivalent to spacing, reads with the wanted traveling time of certain speed (the most at a high speed) when moving this distance L.

Then, when clasp is flat the button, the setting value of input clasp thickness, and when clasp be pellet shot from a slingshot when buckleing, import the setting value (step S9) of hole depth.

After described setting, in step S10～11, the running speed of axle is gone up in decision in the data of the running speed tables of data from ROM31.

Promptly as shown in figure 10, in the cycle that respectively moves up and down of eedle ND, clasp can only move when eedle ND rises to above the clasp, in the present embodiment, eedle up and down period of motion of 1 time as 100%, eedle half period of being positioned at the needle plate top be as 50%, can set 40%, 30%, 20%, 10%, 0% ratio (step S10) corresponding to the thickness (the button hole degree of depth) of the clasp HB that sets.It is short more to be that the big more clip of clasp thickness is held the time that mechanism should move.

If the pellet shot from a slingshot button, as shown in figure 11, pin under the eedle ND of the outside of through wires hole MH that forms on the shank MB1 and shank MB1, when its distance was L, corresponding to the height of shank MB1, promptly the degree of depth of through wires hole MH was set ratio.

According to based on this ratio from described used traveling time T and the above-mentioned ratio read the traveling time tables of data wanted, from the running speed tables of data, read the Sewing machines running speed (step S11) that clasp and eedle are collided.

Then, when being provided the startup indication by described startup pedal 28 (step S12), this starts indication and imports described CPU30 by described input unit 29.After receiving this indication, begin to make.

In the subprogram that this implementation is made, except the control of above-mentioned running speed (Sewing machines responsiveness) to last axle, sequence of movement (movement content) of each device is with routine identical in the past.

That is, after receiving the startup indication, described CPU30 instructs and speed commands to described electrical motor of sewing machine control device 35 output runnings by described output device 33.

Received this instruction, described electrical motor of sewing machine control device 35 drives electrical motor of sewing machine 15, and at this moment, described clip is held mechanism and carried out clasp by the traveling time of wanting that sets and move, and described going up spool turned round with the running speed that sets.

Like this, when the flat button HB that makes shown in Fig. 3, corresponding to the thickness of flat button HB, eedle ND deviates from the back clip from button hole H1～H4 reliably and holds mechanism and move, and for eedle ND penetrates among the button hole H1～H4 that is moved, carries out nail catcher with optimum operation speed simultaneously.

And when the pellet shot from a slingshot button MB that makes shown in Fig. 4, corresponding to the hole depth of pellet shot from a slingshot button MB, eedle ND perhaps holds mechanism for eedle penetrates mobile clip after deviating from from hole Hm reliably, carries out nail catcher with optimum operation speed.

Then, when by described position detecting device, when the count detection of last position signalling and upper/lower positions signal is gone out to finish making of regulation pin number, finish to make.

So,,, therefore can obtain best Sewing machines running speed corresponding to the value that sets owing to can set the information of formed hole depth direction on clasp such as the thickness of flat button and the hole depth of pellet shot from a slingshot button according to embodiment 1.So can be by high efficiency and then the raising productivity of service cycle.

And, owing to can set best Sewing machines running speed, therefore can prevent, or make the eedle clasp of damaging owing to running speed fractures the eedle of wearing to the hole too soon corresponding to clasp.

Below, with reference to Fig. 6 and Fig. 7 the embodiment 2 of button sewing machine of the present invention is described.And, to described embodiment 1 in the identical or similar place of basic structure of button sewing machine 14, describe with prosign.

In

present embodiment

2,42 pairs of code devices that are arranged on the axle are gone up the pulse signal (clock signal) that 1 circle that rotates sends stated number.

And, in the ROM43 in present embodiment 2 (Fig. 6), storing used traveling time data in the described traveling time tables of data and the running speed data in the described running speed tables of data, simultaneously the thickness of flat button and the hole depth of pellet shot from a slingshot button etc. (described ratio) and hold mechanism with the corresponding clip of Sewing machines running speed V and move the beginning phase data and be stored in and move in the beginning phase data table.

Should move beginning phase data table as shown in figure 14,, store moving the umber of pulse P of beginning phase place as the pulse signal (clock signal) of described code device 42 corresponding to the Sewing machines running speed data V of ratio of in step S10, setting and setting.For example, if slave hand position detecting device 41 sends position signalling, when described ratio is 40%, from the tables of data of described mobile starting position, reads and play eedle and rise to the data that are equivalent to the suitable umber of pulse in described 40% position from sending the eedle position detection signal.

CPU44 (Fig. 6) is with above-mentioned same, the used traveling time data of decision from described used traveling time tables of data, decision running speed data from described running speed tables of data, while is corresponding to the information of clasps such as clasp thickness of importing from setting input device 18 and hole depth, from described mobile beginning phase data table, select described mobile beginning phase data, decide clip to hold mechanism like this and move the time started point.

Below, the effect by the present embodiment 2 of CPU44 control is described.

As shown in Figure 7, from step S21 to 31, identical with the described step of the step S S1 to 11 of described embodiment 1.

After in having carried out described step S21 to 31 each set, in step S32, the decision clip was held mechanism and is moved the beginning phase angle the mobile beginning phase data table in ROM43.That is, read corresponding to the data of the umber of pulse of this phase angle and set.

Then, in step S33, when providing the startup indication by startup pedal 28, by input unit 29 this is started indication and import CPU44, the subprogram of B is made in the implementation of execution in step S34.

This subprogram has received described startup indication back and has started Sewing machines (step S35) as shown in figure 12, and described CPU44 exports running instruction and speed commands by described output device 33 to electrical motor of sewing machine control device 35.

The Sewing machines entry into service, on receiving that slave hand position detecting device 41 sends position signalling (step S36) afterwards, described CPU44 in step S37, the pulse count signal (p+1) that encoder apparatus 42 is sent.

Then, when described count value p reaches being equivalent to of being predetermined when moving the P value of beginning phase angle (step S38), receive instruction from CPU44, described clip is held mechanism controls device 36 driving clips and is held mechanism (step S39).

Then, in step S40～42,, stop Sewing machines, finish to make, when not finishing, carry out (step S36) operation afterwards repeatedly when detecting when having finished the making of regulation pin number.

So,, on the basis that can shorten production cycle raising operability, can also move clasp at the optimum time point consistent with the Sewing machines running speed according to present embodiment 2.Therefore, can more effectively prevent from the to fracture eedle and the clasp of damaging can more correctly carry out nail catcher and make.

And the present invention has more than and is limited to described embodiment, can carry out various changes as required.

For example, in described embodiment 1 and embodiment 2,, have more than and be limited to this, for example also can use the data that detect by automatic detection device to replace the method for setting data though be to set from the outside to the thickness of flat button and the hole depth of pellet shot from a slingshot button.And, in described embodiment 1 and embodiment 2, though the decision on the axle running speed the time, be with the decision of running speed tables of data, but also have more than and be limited to this, for example also can be according to the information of described clasp hole depth direction, decision makes eedle not bump the described running angle that goes up axle that clasp can mobile clasp, calculates a described running speed that goes up spool from this running angle of being determined and described used traveling time.

And, though begin the output coder signal, also can detect position other signal in addition according to the last position signalling of eedle position detecting device 41, at that time, other eedle position detecting device can be set also.

And, though used the output signal that is arranged on the encoder on the axle, also can be arranged on this encoder on the electrical motor of sewing machine axle, or use the CPU internal clock signal as clock signal.At this moment, also can change the umber of pulse of setting corresponding to the running speed of described setting.

As mentioned above, 1 button sewing machine according to the present invention can improve operating efficiency and then improve productivity, can prevent broken needle simultaneously and hinder button, carries out correct nail catcher and makes

2 button sewing machine according to the present invention is on the basis of 1 effect according to the present invention, can also further prevent broken needle effectively and hinder button.

Claims

1. button sewing machine, be provided with by the driving of electrical motor of sewing machine reciprocating, being formed with the eedle of clasp nail on sewing made from the hole, with the mobile device that described clasp is moved on respect to described eedle vertical direction, it is characterized in that, corresponding to the relevant information of described clasp hole depth direction, the decision Sewing machines running speed, for make the Sewing machines running according to the running speed that is determined, control is to the control device of the driving of described electrical motor of sewing machine simultaneously.

2. according to the described button sewing machine of claim 1, it is characterized in that, be provided with according to and the relevant information of described clasp hole depth direction, determine the determination device that mobile time started of the beginning traveling time point of described mobile device puts; The control device of described Sewing machines at described determined beginning traveling time point, begins to drive described mobile device.