CN102371830B - Textile laser engraving system and method - Google Patents

Abstract

The invention relates to a textile laser engraving system which comprises an information input unit, a color identification unit, a storage unit, a data processing unit, a laser control unit, a laser output unit, a working platform control unit and a working platform. The invention also relates to a textile laser engraving method which comprises the following steps of: fixing a textile on the working platform; focusing and fixing the laser output unit; inputting the type information and the pattern information of the textile to be subjected to laser engraving as well as the distance information between the laser output unit and the working platform; irradiating laser emitted by the laser output unit onto the textile and simultaneously generating corresponding colors of patterns on the textile through inclining, rotating and moving the working platform; and finishing the operation. In the invention, a multidimensional stereoscopic laser irradiation method can be realized on the textile, so that not only can the colors of the patterns engraved on the textile be changed according to the pattern information, but also the effect of gradually changing the colors can be achieved, therefore, the patterns are more vivid.

Description

A kind of textile laser engraving system and method

Technical field

The present invention relates to the laser engraving field of textile, particularly relate to a kind of high-quality that can directly generate on the textile and reduce the laser engraving system of former figure and method thereof.

Background technology

Use laser-engraving technique to carry out laser carving on the textile, than traditional embroidery process, there is efficient, energy-conservation, free of contamination feature, and pattern is easy to control, the pattern of carve is meticulousr, and laser-engraving technique is more and more applied in textile industry.

The operation principle of laser engraving is exactly the high intensity laser beam launched by laser instrument, the movement locus of laser instrument is controlled by galvanometer, and due to the feature that the light beam of laser is very thin, move at a high speed, can carve continuously, can " engraving " go out deep mixed on the fabric of same color and luster, there is the transition color of stereovision, create fashion, lead the effect of trend.

But the pattern color of the method for this laser decoration printing carve is on the textile single, and wanting to make pattern have other colors multiple needs to carry out follow-up chemical treatment toward contact.

Summary of the invention

Given this, be necessary to provide a kind of high-quality that can directly generate on the textile to reduce the laser engraving system of former figure, it comprises information input unit, colour recognition unit, memory cell, data processing unit, Laser control unit, Laser output unit, workbench control unit and workbench, colour recognition unit, for receiving the pattern-information of input, shades of colour information in identification icon information and the described colouring information correspondence position information in pattern, and pass to data processing unit after this colouring information and correspondence position convert information are become corresponding digital information, information input unit, for inputting the information of kind of information, the wavelength of laser, power, frequency and the distance between Laser output unit and workbench that will carry out the textile of laser engraving, and passes to data processing unit by described information, memory cell, under irradiating for the laser storing wavelength that at least one textile inputs at described information input unit, power, frequency are determined, corresponding shades of colour change is required swashs light-struck parameter, and goes out corresponding parameter according to the instructions match that received data processing unit sends and export to data processing unit, data processing unit, for matching corresponding parameter in the memory unit according to the information of described information input unit and the input of described colour recognition unit, and after calculating the data of Laser output unit Output of laser and the operating data of workbench according to described parameter, respectively to Laser control unit Output of laser control command with to workbench control unit output services platform operations control command, Laser control unit, for receiving the laser controlling order that data processing unit exports, and regulates the optics of Laser output unit to make it export the laser of desired properties according to the control command received, Laser output unit, position is fixed, for penetrating the laser of desired properties to the part of workbench being placed textile according to the control of Laser control unit, workbench control unit, for receiving the workbench operation control command that data processing unit exports, and controls the operation of workbench according to the control command received, workbench, for placing yarn fabric, and makes corresponding action according to the control of workbench control unit in sharp light-struck scope

Preferably, described parameter comprises sharp light-struck time parameter, swashs light-struck count parameter, the distance parameter of Laser output unit and textile.

Preferably, the operating data of described workbench comprises the angle of inclination of workbench, the moving direction of workbench, the translational speed of workbench, the displacement of workbench.

Preferably, the data of described Output of laser are included in the shape data of Output of laser hot spot under often kind of angle of inclination of workbench.

Preferably, the operation of described workbench comprises the inclination of workbench, rotation, movement.

Preferably, the operation of described workbench is by stepper motor or Serve Motor Control.

Preferably, the wavelength of described Output of laser is 10.4 μm-11.2 μm, and power is 60W-230W, and frequency is 80MHz, and the distance between Laser output unit and workbench is 0cm-62cm.

Preferably, described Laser output unit is CO ₂laser instrument.

There is a need to the laser carving method providing a kind of corresponding textile, it comprises the steps: that textile is fixed on workbench by S1; S2 focuses, and regulates the distance of Laser output unit and textile, and is fixed by Laser output unit; S3 inputs the kind of information and pattern-information and the range information between Laser output unit and workbench that will carry out the textile of laser engraving; Laser that Laser output unit penetrates by S4 irradiates on the textile, simultaneously by the inclination of workbench, rotation, mobilely make pattern textile generating respective color; S5 complete operation.

Preferably, the operation of described workbench is by stepper motor or Serve Motor Control.

The present invention can realize the laser irradiating method of multi-faceted solid on the textile, and not only can change the color of the pattern of carve on the textile according to pattern-information, and can reach the effect making color generation gradual change, pattern is more true to nature.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:

Fig. 1 is the functional block diagram of textile laser engraving system of the present invention.

When Fig. 2 a is workbench not run-off the straight, laser is irradiated to the schematic diagram of the hot spot on textile.

Fig. 2 b is the schematic diagram that after workbench tilts, laser is irradiated to the hot spot on textile.

Fig. 3 a is workbench when not tilting, the schematic diagram in B '-B ' direction when the laser hot spot be irradiated on workbench is square hot spot.

Fig. 3 b is after workbench tilts, the schematic diagram in B-B direction when the laser hot spot be irradiated on workbench is isosceles trapezoid hot spot.

Fig. 3 C is after workbench tilts, the schematic diagram in A-A direction when the laser hot spot be irradiated on workbench is isosceles trapezoid hot spot.

Fig. 4 is the flow chart of steps of textile laser carving method of the present invention.

Detailed description of the invention

Present embodiment proposes a kind of textile laser engraving system 10, irradiated by laser and carry out high temperature etching on textile, yarn by high temperature etching position is ablated, dyestuff is vaporized, the color of textile is changed, and the difference of the time of the wavelength of the quality of textile, laser, power, frequency and irradiation can make the color of etched textile that different change occurs, laser engraving system 10 of the present invention by control workbench 180 inclination, rotation, movement and CO ₂laser instrument 170 exports the laser of specific wavelength, power, frequency and shape to make textile (not shown) generates the pattern of required color.

As shown in Figure 1, be the functional block diagram of textile laser engraving system 10 of the present invention.This system 10 comprises information input unit 110, colour recognition unit 120, memory cell 140, data processing unit 130, Laser control unit 150, CO ₂laser instrument 170, workbench control unit 160 and workbench 180.

Colour recognition unit 120, for receiving the pattern-information of input, the shades of colour information in identification icon information also passes to data processing unit 130 after this colouring information is changed into corresponding digital information; User can select the picture liked, then inputs colour recognition unit 120 by after this picture scanner scanning with electronic pictures form, or directly uploads electronic pictures to colour recognition unit 120.

Information input unit 110, for inputting kind of information, the wavelength of laser, power, frequency and the CO that will carry out the textile of laser engraving ₂range information between laser instrument 170 and workbench 180.

In the present embodiment, the kind of information of this textile comprises,

1. denim goods (Denim), is made up of the cotton of 100%,

2. cloth 2 (Fabric#2) comprises the polyester fiber of the cotton and 57.2% of 42.8%,

3. cloth 13 (Fabric#13) comprise the cotton of 64.8%, the polyester fiber of 25.41% and 9.92% spandex.

In the present embodiment, the wavelength of the laser of input is 10.6 μm, and power is 100w, and frequency is the distance between 80MHz, CO2 laser instrument 170 and workbench 180 is 62cm.

When this will carry out kind of information and the CO of the textile of laser engraving ₂after range information input between laser instrument 170 and workbench 180, information is passed to data processing unit 130 by information input unit 110.

Memory cell 140, under irradiating for the laser storing wavelength that above-mentioned three kinds of textiles input at described information input unit, power, frequency are determined, corresponding shades of colour change is required swashs light-struck parameter information, this parameter comprises the time parameter that laser irradiates textile, laser irradiates the count parameter of textile, CO ₂the distance parameter of laser instrument 170 and textile; Described parameter is all drawn by a large amount of experiments; And go out corresponding parameter according to the instructions match that received data processing unit sends and export to data processing unit.

Data processing unit 130, for kind of information, the CO of this textile according to input ₂the range information of laser instrument 170 and textile and the colouring information of pattern match corresponding parameter in memory cell 140, and calculate CO according to this parameter ₂laser instrument 170 after the shape data of each time period Output of laser hot spot and the operating data of workbench 180, Output of laser control command and workbench 180 operation control command; The operating data of this workbench 180 comprises the angle of inclination of workbench 180, the moving direction of workbench 180, the translational speed of workbench 180, the displacement of workbench 180.

Laser control unit 150, for receiving the laser controlling order that data processing unit 130 exports, and regulates CO according to the control command received ₂the optics of laser instrument 170 makes it under each time period, export the laser of given shape.

CO ₂laser instrument 170, its position maintains static, and for being 10.6 μm according to the control of Laser control unit to the part output wavelength of workbench being placed textile, power is 100w, and frequency is the laser of 80MHz.

Workbench control unit 160, for receiving workbench 180 operation control command that data processing unit 130 exports, and workbench 180 is driven to realize operation that is mobile, that tilt, rotate with predetermined flow process according to the control command control step motor (not shown) received.

Workbench 180, for placing yarn fabric, and makes the action of corresponding movement, inclination, rotation in sharp light-struck scope according to the control of workbench control unit 160.

In operation, the change in pattern on textile needs the repeatedly irradiation of laser sometimes, and at this moment, the part that textile was irradiated with a laser will be moved to CO by workbench 180 as required again ₂the position that laser instrument 170 can be irradiated to is carried out secondary or is repeatedly irradiated.

After workbench 180 inclination, can deformation be there is in the pattern that laser is irradiated on textile, shown in Fig. 2 a and Fig. 2 b, when workbench 180 not run-off the straight, it is square hot spot that laser is irradiated on textile, after workbench 180 tilts, the laser pattern be irradiated on textile becomes isosceles trapezoid hot spot, and shape there occurs loses shape.

Shown in Fig. 3 a and Fig. 3 b, be respectively workbench 180 when not tilting, schematic diagram in B '-B ' direction when the laser hot spot be irradiated on workbench 180 is square hot spot, after tilting with workbench 180, schematic diagram in B-B direction when the laser hot spot be irradiated on workbench 180 is isosceles trapezoid hot spot, from in figure, workbench 180 with O point for fulcrum run-off the straight, x be workbench 180 when not tilting laser to be radiated on workbench 180 C point to the length of O point, y be workbench 180 when tilting laser to be radiated on workbench 180 C ' point to the length of O point, α is the angle that workbench 180 is inclined relative to horizontal, laser is by CO ₂d point on laser instrument 170 disperses injection, form isosceles triangle, laser from this D point to the perpendicular ray G length of horizontal operation platform 180 be H, and the perpendicular ray G point be radiated on horizontal operation platform 180 is O ' point, the length that this O ' puts above-mentioned O point is L, the angle of laser injection is δ, the angle that laser outer rays E and laser are irradiated to the ray F of C point on inclined work platform 180 is γ, the angle that perpendicular ray G and laser are irradiated to the ray F of C point on inclined work platform 180 is θ, the angle of ray F and inclined work platform 180 is ε, the angle of laser outer rays E and inclined work platform 180 is β, then the angle of laser outer rays E and horizontal operation platform 180 is alpha+beta.

Because $\frac{L-x}{H}=\tan \mathrm{\θ},$ So $\mathrm{\θ}=\arctan \left(\frac{L-x}{H}\right)$

Because $\mathrm{\γ}=\frac{\mathrm{\δ}}{2}-\mathrm{\θ},$ $\mathrm{\β}=90-\frac{\mathrm{\δ}}{2}-\mathrm{\α}$

So $\mathrm{\ϵ}=180-\mathrm{\β}-\mathrm{\γ}$

$=180-90+\frac{\mathrm{\δ}}{2}+\mathrm{\α}-\frac{\mathrm{\δ}}{2}+\mathrm{\θ}$

$=90+\mathrm{\α}+\mathrm{\θ}$

$=90+\mathrm{\α}+\arctan \left(\frac{L-x}{H}\right)$

By sine and cosine theorem: length any in triangle is equal with the ratio of the sine value at its diagonal angle, known

$\frac{\sin \mathrm{\γ}}{y}=\frac{\sin \mathrm{\ϵ}}{\frac{H}{\sin (\mathrm{\α}+\mathrm{\β})}}$

So, $y=\frac{H\·\sin \mathrm{\γ}}{\sin \mathrm{\ϵ}\·\sin (\mathrm{\α}+\mathrm{\β})}$

$=\frac{H\·\sin (\frac{\mathrm{\δ}}{2}-\mathrm{\θ})}{\sin (90+\mathrm{\α}+\mathrm{\θ})\·\sin (\mathrm{\α}+\mathrm{\β})}$

$=\frac{H\·\sin (\frac{\mathrm{\δ}}{2}-\arctan \left(\frac{L-x}{H}\right))}{\sin (90+\mathrm{\α}+\arctan \left(\frac{L-x}{H}\right))\·\sin (\mathrm{\α}+\mathrm{\β})}$

By the proportionate relationship of known y and the x of the above derivation of equation, the wherein length value H of ray G, O ' point is to the length value L of O point, the angle [alpha] that workbench 180 is inclined relative to horizontal, the angle δ that the angle (alpha+beta) of laser outer rays E and horizontal operation platform 180 and laser penetrate is known value.

That is, in order to make that laser irradiation workbench 180 after tilting also can draw the hot spot that deformation does not occur, when also wanting evaluation work platform 180 to tilt in data processing unit 130, laser is radiated at laser when the point of C ' on workbench 180 does not tilt relative to workbench 180 to the length y of O point and is radiated at C point on workbench 180 and there occurs how many changes to the length x of O point, and adjusts according to the size of change the position that laser is irradiated to the point on workbench 180; Such as, when calculating y=1.1x, in order to make the value of y and predetermined x match, then need CO ₂laser instrument 170 penetrate ray in C point place near O point prescription to movement, make its length of penetrating in C point place deduct the length of the 0.1x that y has more accordingly; When by calculating y=0.9x, in order to make the value of y and predetermined x match, then need CO ₂laser instrument 170 penetrate ray in C point place to away from O point prescription to movement, make it penetrate the length adding 0.1x in the length y at C point place.

Shown in composition graphs 3C, for the schematic diagram in A-A direction when the laser hot spot be irradiated on workbench is isosceles trapezoid hot spot after workbench inclination, from in figure, a be workbench 180 when not tilting laser be radiated at the length on workbench 180, b be workbench 180 when tilting laser be radiated at the length on workbench 180, by CO ₂the distance in the face that the D point on laser instrument 170 parallels to b line place with horizontal operation platform 180 is h, and laser is from CO ₂d point on laser instrument 170 is H to the length of the perpendicular ray of horizontal operation platform 180.

Due to, $\frac{a}{b}=\frac{H}{h}$

Then, $b=\frac{a\·h}{H}$

$=\frac{a(H-y\sin \mathrm{\α})}{H},$ According to the above-mentioned derivation of equation

$y=\frac{H\·\sin (\frac{\mathrm{\δ}}{2}-\arctan \left(\frac{L-x}{H}\right))}{\sin (90+\mathrm{\α}+\arctan \left(\frac{L-x}{H}\right))\·\sin (\mathrm{\α}+\mathrm{\β})}$

Then, $b=\frac{a(H-\frac{H\·\sin (\frac{\mathrm{\δ}}{2}-\arctan \left(\frac{L-x}{H}\right))\·\sin \mathrm{\α}}{\sin (90+\mathrm{\α}+\arctan \left(\frac{L-x}{H}\right))\·\sin (\mathrm{\α}+\mathrm{\β})})}{H}$

$=a(1-\frac{\sin (\frac{\mathrm{\δ}}{2}-\arctan \left(\frac{L-x}{H}\right))\·\sin \mathrm{\α}}{\sin (90+\mathrm{\α}+\arctan \left(\frac{L-x}{H}\right))\·\sin (\mathrm{\α}+\mathrm{\β})})$

By the proportionate relationship of known b and a of the above derivation of equation, when wherein workbench 180 does not tilt, laser is radiated at the length a on workbench 180, the length value H of ray G, O ' point is to the length value L of O point, the angle [alpha] that workbench 180 is inclined relative to horizontal, the angle δ that the angle (alpha+beta) of laser outer rays E and horizontal operation platform 180 and laser penetrate is known value.

That is, in order to make that laser irradiation workbench 180 after tilting also can draw the hot spot that deformation does not occur, the length a that when the laser length b be radiated on workbench 180 does not tilt relative to workbench 180 when also wanting evaluation work platform 180 to tilt in data processing unit 130, laser is radiated on workbench 180 there occurs how many changes, and adjusts according to the size changed the position that laser is irradiated to the point on workbench 180; Such as, when calculating b=0.8a, in order to make the value of b and predetermined a match, then need CO ₂the length b that laser instrument 170 is radiated on workbench 180 widens, and penetrates to make up it length shortened on the workbench 180 tilted.

After data processing unit calculates the proportionate relationship of y and x and the proportionate relationship of b and a according to above-mentioned derivation formula, the data of this change are exported to Laser control unit, and this Laser control unit regulates CO according to received data subsequently ₂optics on laser instrument adjusts the position that laser is irradiated to the point on workbench.

As shown in Figure 4, be the flow chart of steps of textile laser carving method 20 of the present invention, the method 20 comprises the following steps:

Textile (not shown) is fixed on workbench by S1;

S2 focuses, and regulates CO ₂the distance of laser instrument and textile (not shown), and by CO ₂laser instrument is fixed;

S3 inputs the kind of information and pattern-information and CO that will carry out the textile (not shown) of laser engraving ₂range information between laser instrument 170 and workbench;

S4 is by CO ₂the laser that laser instrument 170 penetrates is radiated on textile (not shown), meanwhile by the inclination of workbench, rotation, mobilely make pattern textile (not shown) generating respective color;

S5 complete operation.

The invention has the beneficial effects as follows: the present invention can realize the laser irradiating method of multi-faceted solid on the textile, the color of the pattern of carve on the textile not only can be changed according to pattern-information, and the effect making color generation gradual change can be reached, pattern is more true to nature.

Claims (9)

1. a textile laser engraving system, is characterized in that: comprise,

Colour recognition unit, for receiving the pattern-information of input, shades of colour information in identification icon information and the described colouring information correspondence position information in pattern, and pass to data processing unit after this colouring information and correspondence position convert information are become corresponding digital information;

Information input unit, for inputting the information of kind of information, the wavelength of laser, power, frequency and the distance between Laser output unit and workbench that will carry out the textile of laser engraving, and passes to data processing unit by described information;

Memory cell, under irradiating for the laser storing wavelength that at least one textile inputs at described information input unit, power, frequency are determined, corresponding shades of colour change is required swashs light-struck parameter, and go out corresponding parameter according to the instructions match that received data processing unit sends and export to data processing unit, described parameter comprises sharp light-struck time parameter, swash light-struck count parameter, the distance parameter of Laser output unit and textile;

Data processing unit, for matching corresponding parameter in the memory unit according to the information of described information input unit and the input of described colour recognition unit, and after calculating the data of Laser output unit Output of laser and the operating data of workbench according to described parameter, respectively to Laser control unit Output of laser control command with to workbench control unit output services platform operations control command;

Laser control unit, for receiving the laser controlling order that data processing unit exports, and regulates the optics of Laser output unit to make it export the laser of desired properties according to the control command received;

Laser output unit, position is fixed, for penetrating the laser of desired properties to the part of workbench being placed textile according to the control of Laser control unit;

Workbench control unit, for receiving the workbench operation control command that data processing unit exports, and controls the operation of workbench according to the control command received;

Workbench, for placing yarn fabric, and makes corresponding action according to the control of workbench control unit in sharp light-struck scope.

2. textile laser engraving system according to claim 1, is characterized in that: the operating data of described workbench comprises the angle of inclination of workbench, the moving direction of workbench, the translational speed of workbench, the displacement of workbench.

3. textile laser engraving system according to claim 1, is characterized in that: the data of described Output of laser are included in the shape data of Output of laser hot spot under often kind of angle of inclination of workbench.

4. textile laser engraving system according to claim 1, is characterized in that: the operation of described workbench comprises the inclination of workbench, rotation, movement.

5. the textile laser engraving system according to claim 1 or 4, is characterized in that: the operation of described workbench is by stepper motor or Serve Motor Control.

6. textile laser engraving system according to claim 1, is characterized in that: the wavelength of described Output of laser is 10.4 μm-11.2 μm, and power is 60W-230W, and frequency is 80MHz, and the distance between Laser output unit and workbench is 0cm-62cm.

7. textile laser engraving system according to claim 1, is characterized in that: described Laser output unit is CO2 laser instrument.

8. a laser carving method for textile, is characterized in that: comprise the steps

Textile is fixed on workbench by S1;

S2 focuses, and regulates the distance of Laser output unit and textile, and is fixed by Laser output unit;

S3 input will carry out the kind of information of the textile of laser engraving and range information between Laser output unit and workbench to information input unit, and input pattern-information is to colour recognition unit;

S4 data processing unit matches corresponding parameter in the memory unit according to the information of described information input unit and the input of described colour recognition unit, and after calculating the data of Laser output unit Output of laser and the operating data of workbench according to described parameter, respectively to Laser control unit Output of laser control command with to workbench control unit output services platform operations control command;

S5 Laser control unit receives the laser controlling order that data processing unit exports, and regulates the optics of Laser output unit to make it export the laser of desired properties according to the control command received;

Laser that Laser output unit penetrates by S6 irradiates on the textile, simultaneously by the inclination of workbench, rotation, mobilely make pattern textile generating respective color;

S7 complete operation.

9. the laser carving method of textile according to claim 8, is characterized in that: the operation of described workbench is by stepper motor or Serve Motor Control.