JP3450081B2 - Laser processing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] [Industrial application field] The present invention relates to a workpiece such as a cloth.
A laser is applied to the workpiece while controlling movement in both X and Y directions.
-Laser processing (cutting) by irradiating the beam
And laser engraving). [0002] Conventionally, for example, Japanese Patent Publication No. 6-33550
In the technology disclosed in this report, multiple sewing heads
In the embroidery sewing machine provided,
Laser to the surface of the cloth (workpiece) held in the opposite frame
The laser head that can irradiate the beam is mounted individually.
Yes. Therefore, embroidery is applied to the cloth by each sewing head.
After the embroidery or before embroidering
Laser beam from each laser head while controlling movement in the direction.
By irradiating the fabric at a plurality of locations of the cloth.
Laser processing (cutting) can be performed simultaneously. [0003] However, there are a plurality of arrays.
At the end of cutting by the head or during cutting
So, any laser head cut is
If it is detected incomplete due to the cause,
You have to redo the cut
Yes. For this purpose, the original fabric frame is controlled by frame back control.
Return to the redo point of the cut, then return the original fabric frame
It is necessary to cut to the starting point. But cut
For laser heads that have been properly
Between the starting point of redoing the belt and the starting point of returning the original frame
A laser beam is irradiated on the cut part.
It will be. In this case, the laser beam is used to complete the cloth.
There are few problems if you cut everything.
For example, only the upper one of the two layers of cloth
If you
The lower cloth that is not scheduled to be cut is also cut or burnt
I will get lost. One problem to be solved by the present invention is that
Movement control of holding frame based on movement data in both X and Y directions
Use multiple workpieces held in this holding frame
Laser processing for laser processing with a laser head
In the machine tool, laser with any laser head
-If the machining is incomplete and the laser machining is repeated,
Laser heads other than laser heads are
Between the re-starting point and the holding frame return starting point
Stop laser beam irradiation and properly process laser
The laser beam is irradiated over the place where
Is to prevent. Others that the present invention seeks to solve
One challenge is to pause while laser processing is redone
Stop laser beam irradiation of the laser head
Is released when the holding frame reaches its return start point.
Automatically resumes laser processing with these laser heads
It is to let you. [0005] [Means for Solving the Problems] To solve the above problems
In addition, the laser processing machine of the present invention is configured as follows.
Yes. The invention according to claim 1 holds the workpiece, and X,
Holding frame whose movement is controlled based on movement data in both Y directions
In front of the laser beam emitted from the laser oscillator
Multiple lasers that individually irradiate the workpiece
A laser beam by the laser head.
The workpiece is controlled by irradiation of the workpiece and movement control of the holding frame.
It is a laser processing machine that can perform laser processing on objects.
And by any one of the laser heads
When the laser processing of the workpiece is performed again, the holding frame is
According to the movement dataLaser addition from the return start point
The starting point of reworkFrameback that can be returned
Means,In the holding frameRedo laser processing
From the starting pointThe return start pointOnly until the laser
-Laser heads other than the laser head to be reworked
Beam control hand to stop laser beam irradiation from
With steps. Further, the beam control means holds
Laser that redoes laser processing at the frame return start point
-Laser beam from a laser head other than the head
A stop canceling means for canceling the irradiation stop is provided. [0006] According to this configuration, a plurality of laser heads
Of which, laser processing by any laser head
When incompleteness is detected, the frame back
Start the laser processing of the holding frame again by means
Return to point. Then, return the holding frame from this redo start point.
In the period up to the start point, the beam control means
Laser other than the laser head
-Stop laser beam irradiation from the head
The machining process is corrected. As a result, the workpiece
And place the laser on the place where laser processing was properly performed.
Irradiation of the zir beam is avoided. this thing
Is a work piece, for example, a stack of multiple cloths
Only some of the upper cloths are laser-treated.
Laser cutting when cutting by work
Between the repair start point and the holding frame return start point
From now on, even the lower cloth that is not scheduled to be cut will be cut
Such a situation is resolved.Also,Laser processing
When the repair is done, the holding frame starts to return
When the point is reached, the laser head has been paused until then
(Laser head with proper laser processing)
-Laser beam irradiation is canceled and these lasers are released.
Laser processing by the head is automatically resumed. [0007] Next, embodiments of the present invention will be described with reference to the drawings.
Light up. The following example is a multi-needle type sewing head.
A plurality of (four) and corresponding to each sewing head
The present invention is an embroidery sewing machine equipped with laser heads one by one.
Is applied. FIG. 1 is a front view of an embroidery sewing machine.
2 is a plan view of FIG. 1, and FIG. 3 is an enlarged view of a part of FIG.
It is a front view. Sewing table as shown in these drawings
The front surface of the sewing machine frame 14 located above the
Four sewing heads 20 are provided at regular intervals.
The Similarly, on the front surface of the sewing machine frame 14, each sewing machine
4 lasers, one by one, corresponding to the head 20
A lid 40 is arranged. As shown in FIGS. 1 and 2, the sewing machine table
10 on the upper surface of the workpiece (sheet-like material such as cloth)
The raw fabric frame 16 as a holding frame capable of holding the material)
2 based on movement data (embroidery data)
It is provided so that movement control is possible. It ’s shown in FIG.
The table on the lower surface side of the sewing machine table 10
Corresponding to each sewing head 20 on the horizontal frame of the leg 12
The pot base 30 is supported at each position where
The Similarly, on the front side of the horizontal frame of this table leg 12,
At the position corresponding to each laser head 40, the laser head 40
Steel block plate 36 for receiving the laser beam
Are fixed respectively. The sewing head 20 is shown in FIGS.
As shown, the sewing machine fixed to the sewing machine frame 14
The needle bar case 24 shown in FIG.
Is supported to be slidable in the left-right direction of the sewing machine.
As shown in FIG. 3, the needle bar case 24 has
The six needle bars (shown in the figure) each having a sewing needle 26 at the lower end of each
The outer) is supported so as to be movable up and down. Also each Mi
The needle bar case 24 of the thin head 20 is connected to the connecting rod 28.
Are connected to each other and each needle is driven by a predetermined drive source.
The rod cases 24 are slid in the same direction all at once. This
As a result, one of the needle bars is selected.
Only the needle bar that has been moved is driven up and down together with the sewing needle 26.
As is well known. FIG. 4 is a side view of FIG. 2 viewed from the direction of arrows AA.
FIGS. 5 and 5 are enlarged side views of a part of FIG.
6 is a cross-sectional view taken along line BB in FIG. These drawings
As shown in FIG.
A support 42 supported so as to be movable up and down with respect to the lower part of the front surface;
A lens rack 44 attached to the support 42;
A guide tube 46 coupled to the lower portion of the support 42,
A protective cylinder attached to the outer periphery of the guide cylinder 46 so as to be movable up and down
50. The bracket 18 is shown in FIG.
~ 6 on the front surface of the sewing machine frame 14
It is fixed by the stopper. FIG. 7 is an enlarged sectional view taken along the line CC of FIG. 3, and FIG.
It is the DD sectional view taken on the line of FIG. It is clear from these drawings
As such, the support 42 is opposite to the bracket 18.
And guide it to the rails 43 fixed to the left and right sides of the front
And is supported to move up and down. And this
The support 42 is driven up and down by a lifting mechanism 56.
It has become. The configuration of the lifting mechanism 56 is mainly illustrated.
This will be described with reference to FIGS. First, the bracket 18 side
The wall is equipped with a motor 58 as a drive source,
A drive gear 59 is fixed to the main shaft. This drive gear
59 is rotatable with respect to the front wall portion of the bracket 18.
Is engaged with the intermediate gear 60 supported by the intermediate gear.
The rack 60 is fixed to the back side of the support 42.
It meshes with the rack teeth of the material 62. Therefore, the mode
If the motor 58 is rotated in both forward and reverse directions, the drive gear
The gear 59, the intermediate gear 60 and the rack member 62.
Accordingly, the support 42 is driven up and down. this
As a result, the height of the laser head 40 is adjusted.
Next, the focus position of the lens 47 described next is adjusted. The lens rack 44 has a cylindrical shape.
And the support body by a shaft 45 penetrating through the center thereof.
Rotating operation on the upper and lower horizontal portions 42a and 42b of 42
Supported as possible. In addition, in this lens rack 44
There are three locations on the circumference centered on the shaft 45.
As shown by 7 and 8, holes 44A and 44B penetrating vertically
44C is formed. And each of these holes
44A, 44B and 44C have different focal lengths.
Each lens 47 is incorporated. By the way
These lenses 47 have the holes 44A, 44B, 44 described above.
The focal length is set from “Large” to “Small” in the order of C.
Yes. As is apparent from FIG.
The upper and lower horizontal portions 42a and 42b have the lens
Align with one of each hole 44A, 44B, 44C in rack 44
Through holes 48 and 49 are formed, respectively. This
The manual rack 44 is manually moved around the axis of the shaft 45.
Rotate, any one of each hole 44A, 44B, 44C
By aligning one with the through holes 48, 49,
The lens 47 to be used sometimes can be selected. 9 is the same as FIG.
It is an expanded sectional view showing a part. Shown in FIG. 9 and FIG.
As shown in FIG.
55 urged toward the lens rack 44 by 55
A hook pin 54 is provided. Therefore, the lens rack
The above-mentioned holes 44A, 44B, 44
Either C is aligned with the through holes 48, 49 of the support 42.
Then, as shown in FIG.
Engaging the recess 44a formed on the outer periphery of the hook 44,
The rotation of the lens rack 44 is locked (positioned).
The As shown in FIG. 6, the guide tube 46 has the above-mentioned structure.
For the lower surface of the lower horizontal portion 42b of the support 42,
In a state aligned with the through hole 49 of the horizontal portion 42b
It is fixed. The guide cylinder 46 can be moved up and down on the outer periphery.
The protective cylinder 50 attached is a transparent synthetic resin material.
And the outer periphery of the upper end of the ring
A groove 53 is formed. The annular groove 53 has a structure shown in FIGS.
5, the fork-shaped arm 74 is engaged.
The arm 74 is connected to the bracket 18 with a cylinder block.
Air cylinder attached downward via racket 72
It is coupled to the rod 71 of the slider 70. So this
When the air cylinder 70 is driven, the protective cylinder 50 is moved as shown in FIG.
Ascending position (retracted position) indicated by imaginary line and descending indicated by solid line
Between the position (use position) and the outer periphery of the guide tube 46.
Will move. The side wall near the lower end of the protective cylinder 50
As shown in FIG. 3, air holes 52 are formed.
This air hole 52 has an air pipe 7 as shown in FIGS.
6 is connected to the other end of the air pipe 76.
Connected to an external air supply source and protected from the air hole 52
Air can be blown into the interior of 50
The Also, as shown in FIGS.
On the rear side of the sewing machine from the side of the sewing machine frame 14
A pipe 66 extending forward is disposed. This pipe
66 is a lower end of the laser head 40 (protective cylinder).
The suction nozzle 64 is connected to the lower end of the
And the rear end of the pipe 66 is the sewing machine frame 14.
It is connected to a duct 68 piped inside. Naoko
The duct 68 is connected to a suction blower (not shown) and connected to the laser.
-The air around the lower end of the head 40 can be sucked.
ing. Further, as shown in FIGS.
The table 10 has a portion corresponding to the laser head 40.
The hole 11 opened up and down is opened.
The hole 11 is a beam plate attached to the upper surface of the table 10.
It is closed at 34. The beam plate 34 includes
As shown in FIG. 4 to FIG.
Hole 35 is formed. In other words, laser head 4
The laser beam irradiated from 0 is the beam plate 34.
The beam passes through the beam hole 35 without being reflected by the sewing machine.
The bottom surface of the bull 10 is received by the block plate 36.
It is Above the laser head 40, the above-mentioned
A beam guide 80 mounted on the front surface of the bracket 18 is provided.
Has been placed. This beam guide 80 is shown in FIGS.
Mirror support block 82 and connected to this
Two guide tubes 86 and 87 are provided. This mirror support
The holding block 82 is bolted to the front surface of the bracket 18.
It is fixed by the Both guide tubes 86, 87
Is in the vertical direction of the sewing machine with respect to the mirror support block 82.
Are connected so as to be orthogonal to each other in the longitudinal direction.
The That is, one guide tube 86 is a mirror support block 82.
The tip of the laser head 4 extends downward.
0 through hole in the upper horizontal portion 42a of the support 42
48 and the other guide tube 87 is Mira.
-It extends from the support block 82 in the rear direction of the sewing machine. FIG. 10 is an enlarged view of a part of the beam guide body 80.
FIG. 11 is a cross-sectional view that is greatly expressed, and FIG.
FIG. As is clear from these drawings
Both guide tubes 8 with respect to the mirror support block 82.
Communication hole 84 into which 6,87 are inserted individually from two directions
Are orthogonal within the mirror support block 82.
The In addition, the mirror support is provided at a position orthogonal to the communication hole 84.
The holding block 82 is opened, and here,
A holding plate 89 having a shooting mirror 88 is attached.
The The holding plates 89 are arranged in the upper row in FIG.
One central bolt and two fixed bolts on the left and right of the lower row (three in total)
To the mirror support block 82
It is supposed to be. In contrast, in FIG.
Adjustment of two on the left and right of the side row and one on the center of the lower row (three in total)
Each bolt 91 has a mirror support block at its tip.
It is in contact with the surface of the lock 82. These adjusting bolts
The holding plate 89, that is, the
The tilt of the mirror 88 can be adjusted.
By tightening the bolt 90, the holding plate 89 can be
It is fixed to the hook 82. On the front side of the mirror support block 82
The protective cover 92 covers the holding plate 89 of the mirror 88.
Installed. This protective cover 92 is
The holding plate 89 should come off the mirror support block 82.
To protect the operator from the laser beam
It is. The protective cover 92 includes the fixing bolt 90 and
And a through hole 9 for inserting a tool for turning the adjusting bolt 91
3 is provided. Now, as shown in FIG. 2 and FIG.
Each laser head is located behind the frame 14.
40 and individual laser oscillators 100 corresponding to the sewing machine
It is arranged in the front-rear direction. These laser emission
The vibrator 100 is a gas that can be continuously irradiated with a laser beam.
Slaser (CO₂Laser)
The Further, in front of each laser oscillator 100, an individual illumination is provided.
Before the laser beam emitted from the injection nozzle (not shown)
Conduit 10 for guiding to guide tube 87 of beam guide 80
6 are arranged respectively. Each beam guide 8 described above
The laser beam entering 0 hits the mirror 88.
Reflecting downward, the lens in the laser head 40
Guided to one of the holes 44A, 44B, 44C of the rack 44
The workpiece is repositioned at the in-focus position by the lens 47.
-Laser processing (cutting, etc.) will be performed. As apparent from FIG. 4, the laser
The oscillator 100 is fixed to the sewing machine frame 14.
Support frame 102 and rear end of sewing table 10
Horizontally supported by the support frame 103 fixed to
The support plate 104 is fixed on the upper surface of the support plate 104. So
The laser oscillator 10 is disposed on the lower surface of the support plate 104.
0 controller 107 is installed and also shown in FIG.
Below the sewing machine table 10 is a laser oscillator.
Chiller box 108 for cooling 100 is arranged
It is. As shown in FIG.
And the end on the side close to each laser oscillator 100
Is equipped with a blocking device 110 that can block the laser beam.
It is This shut-off device 110 is the laser oscillation
The laser beam is illuminated by a malfunction of the drive system of the device 100
As a safety measure when fired, or to each laser
The laser beam irradiation from the head 40 is individually blocked.
This is provided as a means. FIG. 12 is an enlarged view showing the shut-off device 110.
It is sectional drawing. The shut-off device 110 will be described with reference to this drawing.
Then, on both sides of the opening formed in the conduit 106,
Each support 112 is fixed and within the conduit 106
A steel block member 116 is fixed to the portion. Ma
Between the two supports 112 above the opened opening,
Latching solenoid which is an actuator of the device 110
114 is fixed in a posture in which the rod 115 faces downward.
It is. The block member 116 penetrates up and down.
A vertical hole 117 and a horizontal hole 11 that crosses this and penetrates in the front-rear direction
8 are formed. The lateral hole 118 is connected to the conduit 10.
6 can be passed through the laser beam
ing. In the vertical hole 117 of the block member 116,
Is coupled to the rod 115 of the solenoid 114
The opening / closing element 119 is positioned so as to be movable up and down. Therefore
As shown in FIG. 12A, the rod 1 of the solenoid 114
In the state in which 15 is retracted, the opening / closing element 119 is pulled up.
As a result, the lateral hole 118 is opened. In contrast to this
The state in which the rod 115 is projected as shown by 12 (B)
Then, the opening / closing element 119 is pushed down, and the lateral hole 118 is
The laser beam is closed from the laser oscillator 100.
Even if the light is irradiated, the switch 119 blocks it. Na
The latching solenoid 114 is shown in FIG.
(B) Regardless of which state the excitation is off, the lock
Mode 115 can be held in each state. As shown in FIG. 1 and FIG.
On the right side of each laser head 40
Each control panel 120 is provided with
It is. FIG. 13A shows the control panel 12.
0 is shown in an enlarged view. As is clear from this drawing
The control panel 120 has a laser beam path.
Instructs laser beam irradiation during word adjustment, etc.
Test switch 122, power during laser beam irradiation
Up / down switches 123, 124 for adjusting
A display unit 126 for displaying the power of the laser beam;
Front to raise and lower the protection tube 50 of the laser head 40
The lift switch 12 for commanding the driving of the air cylinder 70
5 and a toggle switch 128 are provided. Naoko
As shown in FIG. 13B, the toggle switch 128 of FIG.
The upper, middle, and lower levels can be switched in three steps.
If the operating force is released, the built-in spring force will
It automatically returns to the middle position shown. In the laser beam machine having the above-described configuration,
When the main switch (not shown) is turned on,
Power supply for laser oscillator 100 and chiller box 108
And preheating of these laser oscillators 100 is started.
Each laser is emitted from the chiller box 108.
Circulation supply of cooling water to the vibrator 100 is started. there
The laser beam emitted from the laser oscillator 100
Various adjustments will be described. Regarding laser beam position adjustment 1. On the operation panel 19 of the sewing machine shown in FIGS.
Set to “perform (cut)”. 2. Lift switch 12 of the control panel 120
5 is used to move the protective cylinder 50 from the retracted position.
Lower. 3. The test switch 1 of the control panel 120
22 and the up switch 123 are simultaneously pressed for a moment.
This puts you in test mode and a very low level laser
The beam is irradiated for a predetermined time. 4). Laser beam emitted from each laser head 40
Properly passes through the center of the beam hole 35 of the beam plate 34.
Make sure that The laser beam is a beam
If it is displaced from the center of the hole 35, the beam guide body
The inclination of the mirror 88 at 80 is adjusted as described above.
Etc. to correct the laser beam deviation. Laser beam power adjustment After performing the operations 1 to 4, 5). Enter the “setting mode” on the operation panel 19 of the sewing machine.
Switch. 6). Test switch 1 of the control panel 120
When 22 is pressed, the laser beam is emitted only during that time.
Therefore, a test cloth is placed on the beam plate 34 and the laser is
-Check the degree of beam cutting. Laser beam
The test switch 122 and the up switch 123 are the same.
Press and hold to increase power gradually.
Press and hold switch 122 and down switch 124 simultaneously
Gradually power down. The magnitude of this power
This is displayed on the display unit 126. The above 5 and 6
The laser beam power adjustment by operation is applied to each laser.
This is done for every 40 beds. Adjustment of focus position After performing the operations 1 to 6, 7). On the operation panel 19 of the sewing machine, “Focus position adjustment mode”
Drive switch of the laser head 40 (illustrated
The motor 58 of the lifting mechanism 56 is driven and controlled by the outside)
Then, the height of the laser head 40 is adjusted. to this
Therefore, the focusing position of the lens 47 is adjusted. This
The focal position is also adjusted for each laser head 40.
be able to. Also, the laser beam power adjustment
And the adjustment of the in-focus position every time the workpiece is replaced.
Yeah. Depending on the work piece, the lens 47 may have a focal length.
It may be better to replace it with a different one. On the spot
If the lens rack 44 of each laser head 40 is
The lens with the desired focal length is manually rotated as described
47 is selected. Subsequently, sewing by the sewing machine head 20 is performed.
(Embroidery sewing) and laser by the laser head 40
Switching to processing will be described. First, the sewing machine
After setting “Head selection” on the panel 19
If you select the menu of “sewing machine head”, the sewing machine
Embroidery stitching by the head 20
When the menu is selected, the laser head 40
It will be ready for laser processing. Embroidery sewing and laser processing
Switching with the engineer can be done manually, but usually these
Set in advance at the time of work. This setting is the operation panel
19 key input, embroidery sewing and laser processing
It is set for each unit. Multi-needle type sewing head
20, the needle bar case 24 slides.
The sewing needle 26 (needle bar) to be selected in advance must be set in advance.
There is a point. The sewing needle 26 of each sewing head 20 is as described above.
Because there are six,
The above operation is performed when the “sewing head” menu is selected.
Sewing needle 2 by key input “1” to “6” on panel 19
6 can be set. Next, during embroidery sewing and laser processing
A simple explanation of the difference in movement control of the original fabric frame 16
When embroidery sewing is performed, it is based on movement data (embroidery data).
Therefore, the normal movement control is performed.
Constant speed with linear interpolation of movement control based on embroidery data
Then, the original fabric frame 16 is continuously moved. That is, when embroidering
Is sewn from the workpiece held in the original fabric frame 16.
The raw fabric frame 16 can be moved only while the needle 26 is removed.
Because there is, you have to move the fabric frame 16 intermittently
Absent. When embroidery sewing is performed, the sewing needle 26 is set to the position of the data.
Since it is sufficient if it falls to the inside,
It is not moved along the straight line connecting the point and point
Yes. On the other hand, at the time of laser processing, the original fabric frame 1
6 along the line connecting the data points
It is necessary to move continuously at a constant speed. However, laser
-Stitch length of embroidery data used for processing is somewhat small
Be sure to control the movement of the fabric frame 16
However, laser processing is possible without linear interpolation or constant speed.
It is. During this laser processing, the sewing head 20
Stops the rotation of the sewing machine spindle, which is the drive source for the needle bar, etc.
I am. Next, between embroidery and laser processing (cutting)
How to create a simple applique with a combination
I will explain. Figures 14 (A) and 14 (B) show the appliqué after creation
An example is shown. The applique in this drawing is circular
A stitch 202 is formed on the peripheral edge of the substrate 201, and
The letter “A” is cut on the surface of the base 201.
The punched body 301 is sewn with stitch 302.
is there. FIG. 15 shows the procedure for creating the applique.
First, from the vinyl or the like to the raw fabric frame 16
The holding sheet 400 is held in a stretched state. And
As shown in FIG. 15A, the holding sheet 400 is
A sheet 200 as a material of the base 201 is placed, and further
A sheet 300 as a material of the hollow body 301 on the sheet
Put on. These sheets 200, 300 are cloth or leather
It is a workpiece using a throat. Preferably each sheet 2
00, 300, 400 to prevent misalignment
Temporarily glue it with Leh glue. In this state
Sewing operation of the sewing machine head 20 and movement control of the original fabric frame 16
According to the control, the stitches 202 and 302 are respectively
Form. Thereafter, the recording by the laser head 40 is performed.
-By laser beam irradiation and movement control of the original fabric frame 16
As shown in FIG. 15B, the sheet 300 is cut
To the outer shape of the punched body 301 (the outer shape of the alphabet “A”)
Cut along and remove the excess part of this sheet 300
The At this time, the lower sheet 200 is not cut
Adjust the laser beam power as described above.
The After this, the laser beam from the laser head 40
15C and the movement control of the raw fabric frame 16 by FIG.
As shown in FIG. 2, the sheet 200 is shaped like the outer shape (circle) of the base 201.
Shape) and cut the surplus portion of the sheet 200
remove. The completed applique is attached to the holding sheet 400.
To complete one work. Next, referring to FIG. 16 and FIG.
What to do if the cut is incomplete for some reason
I will explain. Now, the sheet 300 is cut out.
In the middle of cutting along the outline of 1
The start point (and end point) a to point c shown in FIG.
Let's assume that And at this point each laser
Of the head 40, as shown in FIG.
Laser heads that have not been
It is also assumed that there is a "de". This place
First, stop the sewing machine drive and
In the “correcting head” by frame back operation
The laser beam irradiation point is the starting point for redoing the cut.
The original fabric frame 16 is moved to correspond to the point b.
Return according to motion data. The frame on the sewing machine
The unwinding operation means that the original fabric frame 16 is based on movement data.
One stitch in the direction opposite to the direction of travel, or predetermined
The number of stitches is returned in units of number.
Automatically executed according to the instruction
ing. This function is applied to the laser in the “correction head”.
-It is used to redo the cut. Therefore, the controller corresponding to the “correction head” is used.
Toggle switch 128 on trawl panel 120 is once raised
When the sewing machine is restarted after switching to
The switch 128 automatically returns to the middle position immediately.
The starting point c of the original fabric frame 16 from the starting point b
Until the laser beam only from the "correction head"
Is irradiated. In other words, during this time,
Toggle switch 128 on troll panel 120
For the laser head 40 that did not switch up once
The laser beam is not irradiated. So this cut
When redoing the laser, a laser other than the “correction head”
-Items that have already been properly cut by the head 40
The laser beam will not be irradiated over the place
The lower sheet 200 was cut or burnt
Is avoided. In this way cutting
Between the repair start point b and the return start point c of the original fabric frame 16
In this case, redoing the cut with the “correction head”
The And at the time when it proceeds to the return start point c of the original fabric frame 16,
Re-irradiation of laser beam from the laser head 40
The sheet is opened by all laser heads 40
300 is cut to the end point a. Note that the cut after point b shown in FIG. 17 is performed.
When there is a laser head that is not used ("corrected head")
Other lasers, whether or not they are discovered
-The sheet 300 is moved to the end point a by the head 40.
The machine is cut and the stop code stops the sewing machine.
You may wait and redo the cut. I.e.
To the `` correction head '' by the frame back operation.
The laser beam irradiation point is the starting point for redoing the cut.
The original fabric frame 16 is returned so as to correspond to b, and this “correction”
The control panel 120 corresponding to the head.
Switch the Glu switch 128 to the upper position and then restart the sewing machine.
Start. This will cause the
The laser beam is irradiated and the redo of the cut is completed
The sewing machine is stopped up to point a. It should be noted that when the cut is redone, the “correction head”
Laser beam from laser head 40 other than "do"
To stop the irradiation, these laser heads 40
The laser output of the corresponding laser oscillator 100 is stopped.
These laser heads 40 may be stopped.
A laser beam by the blocking device 110 corresponding to
May be blocked. Also, turn the toggle switch 128 down.
When switching to, the laser head 40 corresponding to this
Laser output from the laser oscillator 100 is not performed,
Therefore, by switching toggle switch 128 down
Setting that each laser head 40 is individually stopped
Is possible. Now, for the redo operation of the cut described above.
As for embroidery stitching by the sewing machine head 20,
This is almost the same as the embroidery redo operation.
Key operation on the operation panel 19 of the sewing machine
Toggle switch 128 of the control panel 120
And the sewing machine control device (microcomputer
Computer). Therefore
In laser processing, for example, from point c in FIG.
For returning the original fabric frame 16 to the start point b of redoing the cut
Frame back means, starting point b of this cut
Up to the return start point c of the original fabric frame 16 other than “correction head”
Stop laser beam irradiation from the laser head 40
Beam control means to stop or return opening of the fabric frame 16
When the start point c is reached, the laser head other than the “correction head”
Stop to cancel the laser beam irradiation stop from the head 40
For each of the stop release means, the sewing machine operation
Key operation at the channel 19, the control panel 120
Operation of the toggle switch 128 and based on these operations
Constructed mainly by the processing function of the sewing machine controller
Has been. [0042] The present invention provides a plurality of laser heads.
Laser processing by either
When reworking, laser other than the laser head
The head returns the holding frame from the laser processing redo start point.
Stop laser beam irradiation until the starting point
By doing so, laser processing is properly performed on the workpiece.
Laser beam is irradiated on the place where the work was done
Can be prevented. While redoing laser processing
The laser head that had stopped laser beam irradiation
The laser is activated when the holding frame reaches its return start point.
Since the beam irradiation stop is released, these laser
Can automatically resume laser processing.
Yes.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of an embroidery sewing machine. 2 is a plan view of FIG. 1. FIG. FIG. 3 is an enlarged front view showing a part of FIG. 1; 4 is a side view of FIG. 2 as seen from the direction of arrows AA. FIG. FIG. 5 is an enlarged side view showing a part of FIG. 4; 6 is a cross-sectional view taken along line BB in FIG. 7 is an enlarged cross-sectional view taken along the line CC of FIG. 3; 8 is a cross-sectional view taken along the line DD of FIG. FIG. 9 is an enlarged cross-sectional view showing a part of FIG. 6; FIG. 10 is an enlarged cross-sectional view of a part of the beam guide body. 11 is a configuration diagram of FIG. 10 viewed from the direction of arrow E. FIG. FIG. 12 is an enlarged cross-sectional view showing a blocking device. FIG. 13 is a configuration diagram showing a control panel. FIG. 14 is an explanatory diagram showing an example of an applique after creation. FIG. 15 is an explanatory diagram showing an applique creation procedure; FIG. 16 is an explanatory diagram showing a state of an appropriate laser cut. FIG. 17 is an explanatory diagram showing an incomplete laser cut state. [Explanation of Symbols] 16 Original frame (holding frame) 40 Laser head 100 Laser oscillator 200, 300 Sheet (workpiece)

─────────────────────────────────────────────────── ----- Continuation of the front page (56) References JP-A-6-202722 (JP, A) JP-A-4-197592 (JP, A) JP-A-7-185859 (JP, A) JP-A-7- 173756 (JP, A) JP 4-13490 (JP, A) JP 4-66283 (JP, A) JP-B 63-3632 (JP, B2) (58) Fields surveyed (Int. Cl. ⁷ 、 DB name) B23K 26/00-26/42 D05B 37/04 D05C 7/10

Claims (1)

(57) [Claims] [Claims] [Claim 1] A holding frame that holds a workpiece and is controlled to move based on movement data in both X and Y directions, and a laser beam oscillated from a laser oscillator. With multiple laser heads that individually irradiate the workpiece,
A laser processing machine capable of performing laser processing on the workpiece by irradiation of a laser beam by the laser head and movement control of the holding frame, the laser of the workpiece by any one of the laser heads When redoing the processing, return the holding frame according to the movement data from the starting point of laser processing.
From the frame back means that can return to the starting point of redo, and the starting point of redoing laser processing in the holding frame
Beam control means for stopping the irradiation of the laser beam from a laser head other than the laser head for redoing the laser processing only until the return start point, and the beam control means includes a laser at the return start point of the holding frame. A laser processing machine comprising stop cancellation means for canceling a laser beam irradiation stop by a laser head other than the laser head to redo processing.