KR20090006547A

KR20090006547A - Marking method of dried/semidried cuttlefish using laser marking apparatus

Info

Publication number: KR20090006547A
Application number: KR1020070069979A
Authority: KR
Inventors: 신정식
Original assignee: 신정식
Priority date: 2007-07-12
Filing date: 2007-07-12
Publication date: 2009-01-15
Also published as: KR100887709B1

Abstract

By marking a pattern of patterns on the surface of the dried or semi-dried cuttlefish using a laser marker, it is possible to display various information on the dried or semi-dried cuttlefish directly, and to allow consumers to trust the quality of the dried or semi-dried cuttlefish. It is to provide a marking method of dried / semi-dried squid using a laser marking machine. A method of marking dried / semi-dried squids using a laser marker is provided. A method for marking dried / semi-dried squids using a laser marker includes: a) aligning a position of a dried / semi-dried squid that is a workpiece on the laser marker; b) entering a glyph pattern to be marked on the surface of the dried / semi-dried squid; c) selecting the oscillation frequency of the laser oscillator in the laser marker; d) adjusting the pulse width of the marking control signal for controlling the output of the laser beam corresponding to the pattern pattern; e) adjusting a mark step of the marking control signal; f) outputting a laser beam corresponding to the marking control signal in which the pulse width and the mark step are adjusted; And g) marking the glyph pattern on the surface of the dried / semi-dried squid with a laser beam.

Description

Marking method of dried / semidried cuttlefish using laser marking apparatus

The present invention relates to a method for marking a workpiece using a laser marker, and more particularly, to a method for marking a predetermined pattern on the surface of a dried or semi-dried squid using a laser marker.

A laser is an optical device that emits light of the same wavelength, phase, and direction of propagation, and emits monochromatic light whose intensity is very strong and does not spread far.

Most light sources emit light of various wavelengths. As light propagates and spreads, the light intensity decreases as it moves away from the light source. This is because the atoms that actually emit light in the light source emit light that is not constant in wavelength, phase, or direction. Lasers, on the other hand, emit light with a constant wavelength and texture. As a result, the laser beam is strong in intensity, has one color, and is transmitted far away with little change in diameter.

Laser marking is a method of marking a pattern on a workpiece by using such a laser. The laser marking is widely used because of the advantages that the surface is cleanly marked, sanitary, and various visualization operations are possible. Here, the workpiece may correspond to a casing or advertisement of various electronic products, household goods and the like.

Laser marking machines are classified into various types according to their configurations and methods. For example, laser oscillators employing a continuous oscillation method using carbon dioxide gas (CO2), that is, a continuous wave (CW) method, are most commonly used. It is used.

According to the prior art, the workpieces of the laser marking are limited to casings, advertisements, household goods, and the like of various electronic products, and the laser marking is not applied to individual dried fish, foodstuffs, and the like. That is, since there is no information or logo on the dried fish surface, there is a problem that it is difficult to trust the quality of dried fish.

The technical problem to be solved by the present invention for solving the above-described problems, by marking a predetermined pattern on the surface of the dried or semi-dried squid using a laser marker, it is possible to display a variety of information about the dried or semi-dried squid It is to provide a method for marking dried / semi-dried squid using a laser marker.

In addition, another technical problem to be achieved by the present invention is to dry / semi-dry using a laser marking machine that can directly display a variety of information on the surface of the dried or semi-dried squid to make consumers trust the quality of the dried or semi-dried squid It is to provide a marking method of squid.

As a means for achieving the above-described technical problem, a method for marking a dried / semi-dried squid using a laser marker according to the present invention, the method comprising the steps of: a) aligning the position of the dried / semi-dried squid that is a workpiece on the laser marker; b) entering a pattern to be marked on the surface of the dried / semi-dried squid; c) selecting an oscillation frequency of a laser oscillator in the laser marker; d) adjusting a pulse width of a marking control signal for controlling an output of a laser beam in response to the pattern pattern; e) adjusting a mark step of the marking control signal; f) outputting a laser beam corresponding to the marking control signal in which the pulse width and mark step are adjusted; And g) marking the pattern on the surface of the dried / semi-dried squid with the laser beam.

Here, the oscillation frequency of step c) is a Q-switching (Q-sw) oscillation frequency, characterized in that 10kHz.

Here, the pulse width of step d) specifies the range of use of the pulse by adjusting the individual pulse width of the laser beam, the pulse width of step d) is in the range of 70 to 90%, if the workpiece is a dry squid If the workpiece is a semi-dried squid, it can be adjusted within the range of 80 to 90%.

Here, the mark step of step e), if the workpiece is a dried squid, can be adjusted within the range of 3 to 5, if the workpiece is a semi-dried squid, can be adjusted within the range of 3 to 4.

According to the present invention, by marking a predetermined pattern on the surface of the dried or semi-dried squid using a laser marker, it is possible to directly display various information on the dried or semi-dried squid, and the consumer can You can trust the quality.

Hereinafter, with reference to the accompanying drawings, it will be described in detail the marking method of the dried / semi-dried squid using a laser marker according to an embodiment of the present invention.

1 is a block diagram of a general laser marker.

Referring to FIG. 1, a laser scanner 210 scanning a laser oscillator 210 controlled by a computer system 100 and a laser beam output from the laser oscillator 210 on a surface of a workpiece 300. By the laser marking key 200 having a) to be scratched on the workpiece 300.

The computer system 100 is equipped with, for example, predetermined laser scanning control software employed in a conventional laser marker, and outputs a marking control signal corresponding to a pattern pattern to be formed on the workpiece 300.

The laser oscillator 210 and the beam scanner 220 receive the marking control signal including a power source and scan the laser beam corresponding to the pattern pattern to the workpiece 300. As the laser oscillator 210, for example, a CO 2 laser or an Nd: YAG laser may be employed. In addition, the beam scanner 220 includes a pair of movable mirrors 221 and 222 capable of scanning the X and Y axes with respect to the machined surface of the workpiece 300, and a beam spot to be irradiated onto the workpiece 300. A focusing lens system 223 for determining a spot size and driving means (not shown) corresponding to, for example, a galvanometer for driving the movable mirrors 221 and 222 may be provided. .

Meanwhile, according to an embodiment of the present invention, the workpiece 300 is a dried or semi-dried squid, and a predetermined pattern is marked on the surface of the dried or semi-dried squid. At this time, since the dried or semi-dried cuttlefish is a food, special care is required for marking, and the laser incident on the surface of the dried or semi-dried cuttlefish forms a predetermined pattern, but has no effect on the taste of the dried or semi-dried cuttlefish. Not crazy In addition, the laser output from the laser marker 200 is in the form of a pulse, the variable region may be 5 ~ 60 kHz, in the embodiment of the present invention is preferably 10 ㎑.

A method of marking dried / semi-dried squids using a laser marker according to an embodiment of the present invention will be described with reference to FIGS. 2 to 9.

2 is a flowchart illustrating a method of marking a dried / semi-dried cuttlefish using a laser marker according to an exemplary embodiment of the present invention.

Referring to FIG. 2, in the method of marking a dried / semi-dried squid using a laser marking machine according to an embodiment of the present invention, first, a position of a dried / semi-dried squid, which is a workpiece, is aligned on the laser marker (S210). In this case, the dried / semi-dried cuttlefish does not move, and the laser emitted from the laser marker moves horizontally and vertically according to a pattern pattern.

Next, input a pattern to be marked on the surface of the dried / semi-dried squid (S220). That is, the pattern pattern is input to the laser marker through a computer system.

Next, the oscillation frequency of the laser oscillator in the laser marker is selected (S230). At this time, the oscillation frequency is a Q-switching (Q-sw) oscillation frequency, but may be 10 kHz, but in the case of another type of laser oscillator, the oscillation frequency may be appropriately adjusted.

Here, Q switching is a technique of making a laser light pulse output beam, which is excited in a state where the Q value of the laser oscillator is dropped, and the oscillation starts when the Q value is suddenly raised after accumulating enough energy in the laser medium. As a result, the accumulated energy is released in a quick and sharp light pulse. This Q switching method is used to obtain high peak output and narrow optical pulses. For example, using Q switching in glass lasers and carbon dioxide (CO2) lasers can achieve powers of several GW or more.

Next, the pulse width and the mark step of the marking control signal for controlling the output of the laser beam are adjusted in response to the pattern pattern (S240 and S250). At this time, the pulse width is to specify the range of use of the pulse by adjusting the individual pulse width of the laser beam, the pulse width is adjusted within the range of 70 to 90%, if the workpiece is a dry squid, the workpiece In the case of this semi-dried squid can be adjusted within the range of 80 to 90%. In addition, the mark step may be adjusted within the range of 3 to 5 when the workpiece is a dried squid, and may be adjusted within the range of 3 to 4 when the workpiece is a semi-dried squid. The value thus adjusted is obtained by repeated experiments.

Next, a laser beam corresponding to the marking control signal in which the pulse width and the mark step are adjusted are output (S260).

Next, the pattern of the pattern on the surface of the dried / semi-dried cuttlefish with the laser beam (S270). At this time, the pattern is not formed through the dried / semi-dried squid, it is formed on the surface, and should not change the characteristics such as the taste or size of the dried / semi-dried squid.

If, on the surface of the dried / semi-dried cuttlefish is checked whether the state of the pattern is good (S280), if the state of the pattern is not good, the steps S230 to S270 are repeated.

In the method for marking a dried / semi-dried squid using a laser marking machine according to an embodiment of the present invention, some of the above-described steps may have a different processing order.

3 is a flowchart illustrating a method of marking a dried squid using a laser marker according to a specific embodiment of the present invention.

Referring to FIG. 3, in the method of marking a dried squid using a laser marking machine according to a specific embodiment of the present invention, first, the position of the dried squid, which is a workpiece, is aligned on a laser marker (S310), and the surface of the dried squid The pattern pattern to be marked is inputted (S320).

Next, the oscillation frequency of the laser oscillator in the laser marker is selected to 10 kHz (S330).

Next, the pulse width of the marking control signal for controlling the output of the laser beam in response to the pattern pattern is adjusted to 70 to 90% range (S340), and the mark step of the marking control signal to 3 to 5 range. Adjust (S350).

Next, the laser beam corresponding to the marking control signal in which the pulse width and the mark step are adjusted are output (S360), and the pattern is marked on the surface of the dried squid by the laser beam (S370).

4 is a flowchart illustrating a method of marking a semi-dried squid using a laser marker according to a specific embodiment of the present invention.

Referring to FIG. 4, in the method of marking a semi-dried squid using a laser marker according to a specific embodiment of the present invention, first, the position of the semi-dried squid, which is a workpiece, is aligned on the laser marker (S410). To input a pattern to be marked on the surface of the semi-dried squid (S420).

Next, the oscillation frequency of the laser oscillator in the laser marker is selected to 10 kHz (S430).

Next, the pulse width of the marking control signal for controlling the output of the laser beam corresponding to the pattern pattern is adjusted to 80 to 90% range (S440), and the mark step of the marking control signal to 3 to 4 range. Adjust (S450).

Next, the laser beam corresponding to the marking control signal in which the pulse width and the mark step are adjusted are output (S460), and the pattern is marked on the surface of the semi-dried squid by the laser beam (S470).

5 is a table illustrating marking ranges and laser variables according to an exemplary embodiment of the present invention.

Referring to FIG. 5, main variables in laser marking according to an exemplary embodiment of the present invention include a mark step, a Q-sw frequency, and a Q-sw pulse width.

First, the mark step is a vector value up to the next section when the starting point of the marking is 0, which is the minimum unit to which the laser moves. Here, when the mark step value is small, the marking distance of the individual pulses is shortened and the marking speed is slowed, but instead the depth of the marking surface becomes deep on the same output, and the mark step value is excessively small. The surface of the workpiece may burn. The larger the mark step value, the longer the marking distance of the individual pulses and the faster the marking speed, but instead the shorter the depth of the marking surface on the same output, and no too large the mark step value. In an embodiment of the present invention, the mark step ranges from 1 to 10.

The Q-sw frequency represents laser pulses per second and is adjustable. Typically, the lower the frequency of the laser, the higher the peak power of the pulse, and the higher the frequency. Accordingly, the lower the frequency, the deeper the depth at the same speed, and the larger the frequency, the shorter the depth at the same speed. In an embodiment of the present invention, the Q-sw frequency is 10 kHz.

The Q-sw pulse width represents the width of the pulse that changes according to the oscillation frequency, and the unit is%, and may be displayed in the range of 1 to 99%.

6 is a diagram illustrating individual pulse width adjustment according to an embodiment of the present invention.

Referring to FIG. 6, the Q-sw pulse width varies with the laser Q-sw pulse width according to the oscillation frequency. However, in the embodiment of the present invention, the width of each unit pulse may be adjusted to designate a range of use of the pulse. . For example, FIG. 6 shows the case where 60% is specified.

On the other hand, Figure 7 is a table showing an experimental example of the laser marking of the dried squid according to an embodiment of the present invention, Figure 8 is a table showing an experimental example of the laser marking of the semi-dried squid according to an embodiment of the present invention.

Referring to Figure 7, in the experimental example of the laser marking of the dried squid according to an embodiment of the present invention, it is illustrated that it is divided into excellent, good or normal.

First, the mark step is 1 to 10, and may be unmarked if it exceeds 10.

In addition, the Q-sw oscillation frequency has a unit of kHz and has a variable range of 1 to 60 kHz, which may be 10 kHz in the embodiment of the present invention. For example, when the Q-sw oscillation frequency is 1 to 9 Hz, a dry / semi-dried squid, which is a workpiece, burns, and when the Q-sw oscillation frequency is 11 to 60 Hz, a pattern pattern may be blurred.

In addition, the Q-sw pulse width may be expressed in%, and in the embodiment of the present invention, it may range from 40 to 90%. For example, the Q-sw pulse width of 1 to 39% blurs the pattern of the pattern, and the Q-sw pulse width of 91 to 100% may cause dry / semi-dried squid to burn.

More specifically, the markable range of the pattern on the surface of the dried squid according to the embodiment of the present invention, the mark step is 1 ~ 10, the Q-sw frequency is 10Hz, and the Q-sw pulse width is 40 ~ 95 %to be. At this time, the optimal range for marking the pattern pattern according to the embodiment of the present invention is 3 to 5 mark step, the Q-sw frequency is 10 kHz, and the Q-sw pulse width is 70 to 90%.

Referring to Figure 8, in the experimental example of the laser marking of the semi-dried squid according to an embodiment of the present invention, it is illustrated that it is divided into excellent, good or normal.

First, the mark step is 1 to 10, and may be unmarked if it exceeds 10.

More specifically, the markable range on the surface of the semi-dried squid of the pattern pattern according to the embodiment of the present invention is 1 to 10, the Q-sw frequency is 10 Hz, and the Q-sw pulse width is 40 to 95%. At this time, the marking range of the pattern pattern according to an embodiment of the present invention is 3 to 4 mark step, 10-kHz Q-sw frequency, and 80-90% of the Q-sw pulse width.

On the other hand, Figure 9 is a view showing a laser marked squid according to an embodiment of the present invention.

Referring to Figure 9, it shows that the laser marking on the surface of the dried or semi-dried squid 300 according to an embodiment of the present invention, reference A indicates that the pattern pattern is well marked within the marking range, and B is out of the marking range and has shown the bad pattern pattern. That is, since the workpiece according to the embodiment of the present invention is a dried or semi-dried squid, it is necessary to properly control within the marking range to mark the desired pattern.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

1 is a block diagram of a general laser marker.

5 is a table showing marking range and laser parameters according to an embodiment of the invention.

7 is a table showing an experimental example of laser marking of dried squid according to an embodiment of the present invention.

8 is a table showing an experimental example of laser marking of a semi-dried squid according to an embodiment of the present invention.

9 is a view showing a laser marked squid according to an embodiment of the present invention.

100: computer system 200: laser marker

210: laser oscillator 220: beam scanner

221 and 222: movable mirror 223: focusing lens system

300: Workpiece (Dried / Semi-Dried Squid)

Claims

In the marking method using a laser marker,

a) aligning the position of the dry / semi-dried squid that is the workpiece on the laser marker;

b) entering a pattern to be marked on the surface of the dried / semi-dried squid;

c) selecting an oscillation frequency of a laser oscillator in the laser marker;

d) adjusting a pulse width of a marking control signal for controlling an output of a laser beam in response to the pattern pattern;

e) adjusting a mark step of the marking control signal;

f) outputting a laser beam corresponding to the marking control signal in which the pulse width and mark step are adjusted; And

g) marking the glyph pattern on the surface of the dried / semi-dried squid with the laser beam

Marking method of dried / semi-dried squid using a laser marking machine comprising a.

The method of claim 1,

The oscillation frequency of step c) is a Q-switching (Q-sw) oscillation frequency, the marking method of the dried / semi-dried squid using a laser marker, characterized in that 10㎑.

The method of claim 1,

The pulse width of step d) specifies the range of use of the pulse by adjusting the individual pulse width of the laser beam, if the workpiece is a dry squid, the pulse width is adjusted within the range of 70 to 90%, If the workpiece is a semi-dried squid, the pulse width is controlled within 80 to 90% of the marking method of the dried / semi-dried squid using a laser marker.

The method of claim 1,

The mark step of step e) is controlled within the range of 3 to 5 when the workpiece is a dried squid, and adjusted to within the range of 3 to 4 when the workpiece is a semi-dried squid. Method for marking dried / semi-dried squid using a marking machine.