KR200414733Y1 - Laser marking apparatus - Google Patents

Abstract

A laser marking apparatus is disclosed. The laser marking apparatus of the present invention comprises: a plurality of laser marking units for irradiating light to a marking object on a predetermined light irradiation area to form a mark having a predetermined shape; And a sharing stage that supports the marking object and sequentially moves the marking object to the light irradiation areas of the plurality of laser marking units. According to the present invention, it is possible to eliminate the space restrictions for the installation of the laser marking device, and to reduce the number of workers for operating and managing the laser marking device.

Laser, Marking, Marker, Focusing, Shared Stage

Description

Laser marking apparatus

1 is a plan view of a laser marking apparatus according to an embodiment of the present invention.

2 is a front view of FIG. 1.

FIG. 3 is a schematic diagram schematically showing a configuration of a laser marking unit included in the laser marking apparatus of FIG. 1.

4 is a cross-sectional view illustrating an example of a marking object processed by the laser marking apparatus of FIG. 1.

5 is a perspective view illustrating a marking object support provided in the laser marking apparatus of FIG. 1.

6 is a conceptual diagram schematically illustrating an operation process of the laser marking apparatus of FIG. 1.

Explanation of symbols on the main parts of the drawings

110: support body 111: center support

112: radiation support 120: laser marking unit

121: laser body 122: laser head

123: drive motor 125: light source

126: light focusing unit 130: shared stage

131: rotation table 132: marking objects

133: marking object support 134: rotary motor

The present invention relates to a laser marking device, and more particularly, to a laser marking device that can increase production efficiency by reducing workforce and work time by providing a plurality of laser marking units in one laser marking device. will be.

In general, laser marking is a technology of melting and etching or discoloring a part of an object surface by using a laser beam as a light source, thereby marking a desired character or figure. Such laser marking uses a laser beam as a direct processing means, compared to conventional ink jet printers or silk printing methods, so that non-contacting and permanent marking is possible, and there is no fear of erasing. There are many advantages, such as being done.

In the laser marking method, a scanning marking method in which a laser beam focused at a small spot is scanned with a galvano mirror or the like to mark a portion irradiated with a laser beam, and a pattern such as a desired character or figure is previously applied to the mask. The laser beam, which has been formed and transmitted through the mask, is imaged on the surface of the object by using a lens system or the like, thereby distinguishing the mask type marking method in which the pattern portion is marked. Such laser marking is used in fields such as high quality marking and engraving of various semiconductors, ICs, tools, nameplates, and the like.

However, in the conventional laser marking apparatus, since only one laser marking unit for irradiating a laser beam is provided, there is an inconvenient problem that an operator must replace the marking object to mark the marking one by one.

In order to solve this problem, there have been efforts to arrange a plurality of marking objects in a light irradiation area of one laser marking unit and to complete a plurality of marking operations in one process. However, in order to irradiate a laser beam to a plurality of marking objects, it is necessary to readjust the focusing of the laser marking unit for each marking object, and there is a problem in that a lot of time and cost is generated for such focusing adjustment.

In addition, since one laser marking unit is provided with one laser marking unit, in order to increase productivity, a plurality of laser marking devices must be used. In this case, a work table must be provided for each laser marking device and several operators Since it is necessary, not only is there a footprint constraint to install a plurality of laser marking devices, but also there is a problem that the number of workers for operating and managing the plurality of laser marking devices increases.

Accordingly, it is an object of the present invention to provide a laser marking apparatus which can eliminate the space constraint for the installation of the laser marking apparatus and reduce the number of workers for operating and managing the laser marking apparatus.

In addition, another object of the present invention is to provide a laser marking device that can eliminate the inconvenience caused by frequent replacement of the marking object, and reduce the time and cost waste for refocusing the laser marking unit.

The above object is, according to the present invention, a plurality of laser marking units for irradiating a marking object on a predetermined light irradiation area to form a mark of a predetermined shape; And a sharing stage which supports the marking object and sequentially moves the marking object to the light irradiation area of the plurality of laser marking units.

The sharing stage may include a rotary table rotated by a rotary motor; And a plurality of marking object supports which support the marking object and are coupled to the rotating table to sequentially move the marking objects to the light irradiation area of the laser marking unit according to the rotation of the rotating table, and are spaced apart from each other by a predetermined distance.

In this case, one marking object support supports a plurality of marking objects that are separately provided, and the plurality of laser marking units are preferably focused on one marking object of each of the plurality of marking objects on the marking object support.

The plurality of laser marking units can be individually controlled.

The plurality of marking object supports may be disposed at an angle on the rotating table. In this case, the isometric angle is substantially 60 degrees, and it is preferable that a plurality of marking object supports are six, and four laser marking units.

The rotating table may include: a processing area in which a plurality of laser marking units are disposed thereon; A loading area in which the marking object is loaded on the marking object support as an area adjacent to the machining area; And a take-out area in which the marking object, which has been processed, is taken out as an area adjacent to the loading area.

The plurality of laser marking units are arranged radially on top of the turntable. In this case, it is preferable that the plurality of laser marking units are disposed at an isometric angle along the circumference of the turntable.

In addition, the laser marking apparatus according to the present invention may further include a support body having a central support portion to which the rotary table is rotatably coupled, and a radial support portion extending radially from the central support portion to support the laser marking unit. have.

The laser marking unit includes a light source for irradiating light; And it may include a light focusing unit for focusing the light irradiated from the light source.

In order to fully understand the present invention, the operational advantages of the present invention, and the objectives achieved by the practice of the present invention, reference should be made to the accompanying drawings illustrating a preferred embodiment of the present invention and the contents described in the accompanying drawings.

Hereinafter, the present invention will be described in detail by explaining a preferred embodiment of the present invention with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

1 is a plan view of a laser marking apparatus according to an embodiment of the present invention, FIG. 2 is a front view of FIG. 1, and FIG. 3 is a schematic diagram schematically showing the configuration of a laser marking unit provided in the laser marking apparatus of FIG. 1. 4 is a cross-sectional view illustrating an example of a marking object processed by the laser marking apparatus of FIG. 1, and FIG. 5 is a perspective view illustrating a marking object support provided in the laser marking apparatus of FIG. 1.

As shown in FIG. 1 and FIG. 2, the laser marking apparatus 100 according to an embodiment of the present invention includes a center support 111 and a radiation support 112 extending radially from the center support 111. A plurality of laser marking units 120 and a central support part 111 of the support body 110 are installed on the support body 110 and the radiation support part 112 of the support body 110, which are spaced at equal angles from each other. It is provided with a sharing stage 130 installed in a relative rotation.

In this case, the plurality of laser marking units 120 are spaced apart from each other at equal angles (the four laser marking units 120 are shown at intervals of 60 degrees in FIG. 1) on the radiation support 112. This arrangement, as will be described later, the marking object support 133 supported by the sharing stage 130 is rotated at an isometric angle so that the marking object support 133 can be easily and accurately disposed directly below the laser marking unit 120. To help. Hereinafter, referring to FIG. 1, the first laser marking unit 120a, the second laser marking unit 120b, the third laser marking unit 120c, and the fourth laser marking unit in the clockwise order from the left laser marking unit, respectively. 120d).

The laser marking unit 120 includes a laser main body 121 fixedly coupled to the radiation support part 112, and a biaxial guide (for example, an X axis guide 122x and a Y axis) formed at one end of the laser main body 121. A laser head 122 slidably coupled in two axes along the guide 122y, and a drive motor 123 providing a driving force for moving the laser head 122 in two axes with respect to the laser body 121. And a control unit (not shown) for controlling the drive motor 123.

Therefore, the laser head 122 may move relative to the laser main body 121 in two axes by the driving motor 123 commanded by the controller. In this case, since the plurality of laser heads 122 are each commanded by separate controllers, the plurality of laser heads 122 may be moved independently of each other. That is, while the first laser marking unit 120a is processing 'ABC', the second laser marking unit 120b is capable of processing a separate 'DEF'. Of course, all of the laser marking units 120a to 120d may process the same mark (shown as ABC in FIG. 1) according to programming of the controller.

In this case, the laser head 122 is provided with the light source 125 which irradiates light, and the light focusing part 126 which focuses the light irradiated from the light source 125, and forms an image on the substantially surface of a marking object. The light source 125 and the light focusing unit 126 may be configured such that light emitted from the light source 125 is directly scanned and focused on the light focusing unit 126, as shown in FIG. 3A, and b of FIG. 3. The light emitted from the light source 125 may be scanned by the reflector 127 and may be scanned and focused by the light converging unit 126 through the changed light path. In addition, various designs, standards, and the like of the laser head 122 may be obtained by changing the optical path using the plurality of reflecting mirrors 127.

Here, the light focusing unit 126 may use a collimator lens or a convex lens that is generally used.

The laser marking unit 120 adjusts the position where the light is imaged, the intensity and the irradiation time of the light, and cuts the marking object as shown in FIG. 4A) or roughly the marking object as shown in FIG. 4B). The surface can be etched intaglio. In addition, as shown in c) of FIG. 4, the surface of the marking object may be melted and foamed to form embossed or discolored colors.

The sharing stage 130 is disposed on the circumference of the rotary table 131 and the circumference of the rotary table 131 so as to be relatively rotatably coupled to the central support part 111 of the support body 110, and is disposed on an upper surface thereof. And a marking object support 133 on which a plurality of individual marking objects 132 are placed, and a rotating motor 134 for relatively rotating the rotary table 131 with respect to the central support part 111. The rotary table 131 is formed of a circular flat plate, and the marking object support 133 is fixedly coupled or detachably coupled to an upper surface thereof.

The plurality of marking object supports 133 are disposed at equal intervals on the upper surface end of the rotary table 131 (in FIG. 1, six marking object supports are shown at 60 degree intervals). In one marking object support 133, a plurality of individual marking objects 132 are placed on an upper surface thereof. In this case, as shown in a) of FIG. 5, the plurality of marking objects 132 may have the same size as height and area, or may have different sizes as shown in b) of FIG. 5.

Here, the number of marking objects 132 placed on the marking object support 133 corresponds to the number of laser marking units 120. That is, if four marking objects 132 are four, one marking object 132 is processed by four laser marking units 120. Hereinafter, reference numerals 133a to 133f will be respectively assigned to the first to sixth marking object supports, and reference numerals 132a to 132d will be respectively given to the first to fourth marking objects placed on the respective marking object supports. .

The number of marking object support 133 is not related to the number of laser marking units 120. That is, in FIG. 1, six marking object supports 133 and four laser marking units 120 are illustrated. Four marking object supports 133 of four marking object supports 133 are four lasers. Located directly below the marking unit 120, the two marking object support 133 is located in an adjacent area of the laser marking unit 120. Therefore, directly below the four laser marking units 120, that is, the light irradiation area becomes the processing area A in which the marking object 132 is processed, and is marked by the operator before entering the processing area A. The area | region in which the support stand 133 is mounted becomes the loading area | region B, and the area | region where the marking target support base 133 is taken out by an operator as having passed through the process area | region A becomes a taking out area | region C. FIG. Of course, by providing the six laser marking units 120 without providing the loading area B or the extraction area C, all the areas can be configured as the processing area A. FIG.

Looking at the principle of operation of the laser marking device 100 according to an embodiment of the present invention is configured as follows.

6 is a conceptual diagram schematically showing an operation process of the laser marking apparatus 100 according to an embodiment of the present invention. As shown therein, the operator loads the first marking object support 133a on which the four marking objects 132a to 132d are placed in the loading area B of the sharing stage 130 (S1) and the laser marking apparatus 100. ), The rotary table 131 is rotated (shown in a clockwise direction in FIG. 1) by the rotational drive of the rotary motor 134, whereby the first marking object support 133a is the first. It enters the light irradiation area, ie, the processing area A of the laser marking unit 120a.

The laser head 122 of the first laser marking unit 120a is properly moved in two axes by the driving motor 123 commanded by the controller, so that the first marking object 132a of the first marking object support 133a is moved. Focus on.

The light irradiated from the light source 125 of the laser head 122 of the first laser marking unit 120a is imaged on an approximately surface of the first marking object 132a by the light focusing unit 126 to form a first marking object ( The surface of 132a is processed. In this case, the surface of the first marking object 132a is machined into a shape (shown as ABC in FIG. 1) preprogrammed in the controller.

Since the 1st marking target support 133a entered the process area | region A of the 1st laser marking unit 120a by the rotation of the rotating table 131, the loading area B becomes an empty space. Therefore, the operator can load the second marking object support 133b in the loading area B. (S2)

After the shape is processed on the surface of the first marking object 132a of the first marking object support 133a through the above process, the rotary table 131 is rotated by the rotational drive of the rotary motor 134. The first marking object support 133a enters the machining area A of the second laser marking unit 120b, and the second marking object support 133b is the machining area A of the first laser marking unit 120a. Will be entered.

The laser head 122 of the second laser marking unit 120b is properly moved in two axes by the driving motor 123 commanded by the controller, so that the second marking object 132b of the first marking object support 133a is moved. Focus on. The light irradiated from the light source 125 of the laser head 122 of the second laser marking unit 120b is approximately the second marking object 132b of the first marking object support 133a by the light focusing unit 126. It forms on the surface and processes the surface.

Similarly, the laser head 122 of the first laser marking unit 120a is properly moved in two axes by the driving motor 123 commanded by the control unit, so that the first marking object of the second marking object support 133b ( 132a). The light irradiated from the light source of the laser head 122 of the first laser marking unit 120a is imaged on the substantially surface of the first marking object 132a of the second marking object support 133b by the light focusing unit 126. To machine the surface.

In this case, since the second marking target support 133b has entered the processing area A of the first laser marking unit 120a, the loading area B becomes an empty space. Therefore, the operator can load the third marking object support 133b in the loading area B. (S3)

After the shape is processed on the surface of the second marking object 132b of the first marking object support 133a and the surface of the first marking object 132a of the second marking object support 133b through the above process, The rotary table 131 is rotated by the rotational drive of the rotary motor 134, and the first marking object support 133a is the machining area A of the third laser marking unit 120c, and the second marking object support is Reference numeral 133b indicates a machining area A of the second laser marking unit 120b, and a third marking target support 133c enters the machining area A of the first laser marking unit 12a.

When the process as described above is repeated, the third marking object 132c of the first marking object support 133a, the second marking object 132b of the second marking object support 133b, and the third marking object support ( The surface of the first marking object 132a of 133c is processed. At the same time, since the loading area B becomes an empty space, the worker can load the fourth marking object support 133d into the loading area B. (S4)

When the rotary table 131 is rotated again by the rotational drive of the rotary motor 134, the first marking object support 133a is the machining area A of the fourth laser marking unit 120d and the second marking object support is rotated. Reference numeral 133b denotes a machining area A of the third laser marking unit 120c, a third marking target support 133c is a machining area A of the second laser marking unit 120b, and a fourth marking target support. 133d enters the processing area A of the first laser marking unit 120a.

When the process as described above is repeated, the fourth marking object 132d of the first marking object support 133a, the third marking object 132c of the second marking object support 133b, and the third marking object support ( The surfaces of the second marking object 132b of 133c and the first marking object 132a of the fourth marking object support 133d are processed. At the same time, since the loading area B becomes an empty space, an operator can load the fifth marking object support 133e into the loading area B. (S5)

When the rotary table 131 is rotated again by the rotational drive of the rotary motor 134, the first marking object support 133a is the take-out area C, and the second marking object support 133b is the fourth laser marking unit. In the machining area A of 120d, the third marking object support 133c is the machining area A of the third laser marking unit 120c, and the fourth marking object support 133d is the second laser marking unit. In the machining area A of 120b, the fifth marking object support 133e enters the machining area A of the first laser marking unit 120a.

In this way, the surfaces of the four marking objects 132a to 132d placed on the first marking object support 133a all arrive at the take-out area C in a state where the machining is completed. Therefore, the operator may take out the 1st marking object support 133a which arrived at the extraction area C, and may load the 6th marking object support 133f in the loading area A. (S6)

By continually repeating the above process, the operator only needs to load the marking object support 133 in the loading area A or to take out from the extraction area C, so that the frequent replacement of the marking object support 133 may be performed. Discomfort due to this is greatly reduced.

In addition, since the plurality of marking objects 132 are processed in one process, and the focusing of the laser marking unit 120 does not need to be readjusted according to the marking objects 132, the process time and cost are greatly reduced. The production efficiency is improved.

In addition, since a plurality of laser marking units 120 are radially disposed in one laser marking apparatus 100, the restriction on the installation space is eliminated.

In the above-described embodiment, since the sharing stage 130 includes the rotary table 131 and the rotary motor 134, the marking target support 133 rotates in the processing area of the plurality of laser marking units 120 by the rotation method ( Although the method of moving A) has been described, since the shared stage 130 is configured like a conveyor belt, the marking object support 133 moves the processing areas A of the plurality of laser marking units 120 by the linear movement method. It is also possible to do this.

As such, the present invention is not limited to the described embodiment, and it is apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to belong to the utility model registration claims of the present invention.

As described above, according to the present invention, it is possible to reduce the manufacturing cost by eliminating the space constraints for the installation of the laser marking device and significantly reducing the number of workers for operating and managing the laser marking device.

In addition, it is possible to relieve the inconvenience caused by frequent replacement of the marking objects, and to reduce the time and cost waste to readjust the focusing of the laser marking unit for each of the plurality of marking objects, thereby improving production efficiency significantly.

Claims (11)

A plurality of laser marking units for irradiating light to a marking object on a predetermined light irradiation area to form a mark of a predetermined shape; And And a sharing stage supporting the marking object and sequentially moving the marking object to the light irradiation area of the plurality of laser marking units. The method of claim 1, The sharing stage, A rotary table rotated by a rotary motor; And Supporting the marking object, the plurality of marking object support is coupled to the rotary table to sequentially move the marking object to the light irradiation area of the laser marking unit in accordance with the rotation of the rotary table spaced apart from each other by a predetermined distance Laser marking apparatus comprising a. The method of claim 2, One of the marking object support supports a plurality of the marking object provided separately, And the plurality of laser marking units are respectively focused on the marking objects of each one of the plurality of marking objects on the marking object support. The method of claim 2, And said plurality of laser marking units are individually controlled. The method of claim 2, The plurality of marking object support is laser marking device, characterized in that disposed on the rotary table at an equal angle. The method of claim 5, The isometric angle is substantially 60 degrees, wherein the plurality of marking object supports are six, and the laser marking unit is four laser marking apparatus. The method of claim 2, The rotary table, A processing area in which the plurality of laser marking units are disposed thereon; A loading area in which the marking object is loaded on the marking object support as an area adjacent to the processing area; And And a take-out area in which the machining target marking object is taken out as an area adjacent to the loading area. The method of claim 2, And the plurality of laser marking units are disposed radially on an upper portion of the rotary table. The method of claim 8, And the plurality of laser marking units are disposed at an isometric angle along the circumference of the rotary table. The method of claim 2, And a support body having a central support portion to which the rotary table is rotatably coupled, and a radial support portion extending radially from the central support portion to support the laser marking unit. The method of claim 1, The laser marking unit, A light source for irradiating light; And And a light focusing unit for focusing the light irradiated from the light source.

Images