KR101500625B1

KR101500625B1 - Laser processing device for mobile case and processing method thereof

Info

Publication number: KR101500625B1
Application number: KR20140168564A
Authority: KR
Inventors: 지광석
Original assignee: (주)일성전자
Priority date: 2014-11-28
Filing date: 2014-11-28
Publication date: 2015-03-09

Abstract

The present invention relates to an apparatus for laser processing a cellular phone case and a method thereof. A laser processing apparatus of a mobile phone case of the present invention comprises a work table; A loading plate disposed at one side of the work table and loaded while the cell phone case to be processed is mounted; A rotation driving unit connected to the loading plate for selectively rotating the loading plate; And a laser module for irradiating a laser toward the mobile phone case loaded on the loading plate while approaching or separating from the loading plate.

Description

TECHNICAL FIELD [0001] The present invention relates to a laser processing apparatus for a mobile phone case,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser processing apparatus and method for a cellular phone case, and more particularly, to a laser processing apparatus and a laser processing apparatus for a cell phone case, It is about the method.

Laser processing is a method of performing fine processing while locally heating a workpiece by converting energy having a specific light called a laser into heat energy, and it is possible to perform various operations such as melting or emitting a workpiece.

Particularly, since laser processing is a process that does not contact a workpiece, it is widely used for precise processing such as a bearing hole of a watch or precise punching or cutting of a nonmetallic material such as diamond or ceramic.

In addition, it is known that laser machining is being used in the field of manufacturing various products including semiconductors and displays.

On the other hand, in recent years, the use of mobile phones has been rapidly increasing worldwide. Such a mobile phone is changing from a simple telephone function product to a portable mobile computer having various functions. Accordingly, the appearance of a mobile phone case is also being changed in a luxurious manner.

When manufacturing a cell phone case, the cell phone case is injected by an injection process, and then the cell phone case is given a full color through a deposition process. Once the deposition process is complete, the overall color of the cell phone case may be the same.

At this time, if the rim of the mobile phone case is changed to a different color, the rim portion may have a different color from that of the other side, so that the mobile phone case may be changed into a more stereoscopic or more luxurious image.

However, since the entire color of the mobile phone case is formed at one time by the vapor deposition process, it is practically not easy to separately deposit the frame portion. This is because productivity is not right.

However, it is also not easy to separately paint only the rim of the mobile phone case, and it is not easy to peel off the rim alone by hand, so laser processing is required for such a task.

Korea Patent Office Application No. 10-2014-0089637 Korea Patent Office Application No. 10-2014-7020544 Korea Patent Office Application No. 10-2014-7026393 Korea Patent Office Application No. 10-2014-7026785

SUMMARY OF THE INVENTION An object of the present invention is to provide a laser processing apparatus and method for a mobile phone case that can produce a high quality product of a mobile phone case by processing a rim portion of the mobile phone case through a laser.

The object is achieved by a work table, A loading plate disposed at one side of the work table and loaded while the cell phone case to be processed is mounted; A rotation driving unit connected to the loading plate for selectively rotating the loading plate; And a laser module for irradiating a laser beam toward the mobile phone case loaded on the loading plate while approaching or separating from the loading plate.

The rotation driving unit may include: a rotation support body for rotatably supporting the loading plate; A rotary motor connected to the rotary support for generating a power for rotating the rotary support; And a first support frame for supporting the rotary motor and the rotary support, wherein the first support frame is movable on a first rail of the work table.

A pressing plate disposed in parallel with the loading plate and approaching the loading plate to press the mobile phone case loaded on the loading plate; A plurality of guide bars connected to the loading plate and the pressing plate to guide movement of the pressing plate; An actuator connected to the pressure plate, for moving the pressure plate toward or away from the loading plate; And a second support frame for supporting the actuator, wherein the second support frame is positionable on a second rail of the work table.

The pressing plate is further provided with a pressing block which is in contact with the cell phone case to press the cell phone case, and a bar passing boss through which the guide bar son passes can be coupled to the pressing plate.

Wherein the controller controls the rotation drive unit, the actuator, and a controller of the laser module, wherein the controller controls the rotation of the laser module every time the mobile phone case, which is disposed between the loading plate and the pressing plate, So that the cellular phone case can be controlled to be laser-processed by approaching the cellular phone case.

A column coupled to the work table along a direction in which the laser module is moved at one side of the loading plate; A slider connected to the laser module and the column to drive the laser module up / down on the column; A blower for spraying compressed air toward the mobile phone case when the mobile phone case is processed; And a gooseneck type support for freely movably supporting the blower so that the position of the blower can be adjusted.

The object is achieved by a pressure plate separating method for separating a pressure plate from a loading plate; Loading a mobile phone case to be processed on one side of the loading plate; A pressing plate approaching step in which the pressing plate is moved toward the loading plate by the actuator so that the pressing block of the pressing plate presses and supports the mobile phone case; A first laser processing step in which the laser module is laser-processed by the laser module at the position after the laser module is downwardly moved by a predetermined distance toward the cellular phone case; A first rotating step of the mobile phone case in which the loading plate and the pressing plate are rotated 90 degrees by a rotation driving unit; A second laser processing step in which the laser module is laser-processed by the laser module at the position after the laser module has been lowered by a predetermined distance; A second rotating step of the mobile phone case in which the loading plate and the pressing plate are further rotated by 90 degrees by the rotation driving unit; A third laser processing step in which the laser module is laser-processed by the laser module at the position after the laser module is down by a predetermined distance; A third rotation step of the mobile phone case in which the loading plate and the pressing plate are further rotated by 90 degrees by the rotation driving unit; A fourth laser processing step in which the laser module is laser-processed by the laser module at a position after the laser module is lowered by a predetermined distance; Wherein the loading plate and the pressing plate are rotated in opposite directions by the rotation driving unit to be placed in a normal state; And a step of taking out a cellular phone case from which the pressure plate is spaced apart from the loading plate and the processed cellular phone case is taken out.

According to the present invention, the edge portion of the mobile phone case is processed through the laser, so that the mobile phone case can be manufactured with high quality.

In particular, since the rim portion of the mobile phone case is laser-processed, it is possible not only to perform continuous operation but also to improve the productivity per unit time and to improve the processing quality of the product.

FIGS. 1 to 11 are schematic structural views of a laser machining apparatus according to an embodiment of the present invention, and are diagrams showing the laser machining step by step.
12 is a perspective view of the loading plate, the pressing plate, and the guide bar in an arrangement state.
13 is a front view of the area A in Fig.
14 is a control block diagram of a laser machining apparatus according to an embodiment of the present invention.
15 is a flowchart of a laser machining method according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings.

The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the present specification, the present embodiment is provided to complete the disclosure of the present invention and to fully disclose the scope of the invention to a person having ordinary skill in the art to which the present invention belongs. And the present invention is only defined by the scope of the claims.

Thus, in some embodiments, well known components, well known operations, and well-known techniques are not specifically described to avoid an undesirable interpretation of the present invention.

Like reference numerals refer to like elements throughout the specification. And (used) terms used herein are for the purpose of illustrating embodiments and are not intended to limit the invention.

In the present specification, the singular form includes plural forms unless otherwise specified. Also, components and acts referred to as " comprising (or comprising) " do not exclude the presence or addition of one or more other components and operations.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs.

Also, commonly used predefined terms are not ideally or excessively interpreted unless they are defined.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 to 11 are views schematically showing a laser machining apparatus according to an embodiment of the present invention, wherein FIG. 12 is a perspective view of a loading plate, a pressing plate and a guide bar, Fig. 14 is a control block diagram of a laser machining apparatus according to an embodiment of the present invention, and Fig. 15 is a flowchart of a laser machining method according to an embodiment of the present invention.

Referring to these drawings, the laser machining apparatus according to the present embodiment is an automatic machining apparatus for machining a rim portion of a cell phone case C through a laser. The cellular phone case C is sandwiched between the loading plate 120 and the pressing plate 150 and then all of the four sides of the cell phone case C are sequentially rotated by 90 degrees while the plates 120 and 150 are sequentially rotated by 90 degrees, The edge of the cell phone case C is peeled off by the laser so that the edge of the cell phone case C is colored differently from the other side of the cell phone case C. [ Therefore, the cellular phone case C can be changed into a more stereoscopic or high-quality image.

The laser processing apparatus according to the present exemplary embodiment includes a work table 110, a loading plate 120, a rotation driving unit 130, and a laser module 140.

The work table 110 is a place where the cellular phone case C is laser-processed. The work table 110 supports all structures and devices including the loading plate 120, the rotation drive 130, and the laser module 140.

The loading plate 120 is disposed on one side of the work table 110 and forms a place where the mobile phone case C to be processed is loaded while being loaded.

As shown in FIGS. 10 and 11, a plurality of through-holes 120a and 120b are formed in the loading plate 120. It is possible to mount the cell phone case C by attaching a separate jig to the through holes 120a and 120b.

The rotation driving unit 130 is connected to the loading plate 120 and selectively rotates the loading plate 120.

Since the mobile phone case C has a rectangular shape, a total of four sides are provided. In order to laser-process all four sides, the mobile phone case C must be loaded with the loading plate 120 rotated. To this end, a rotation driving unit 130 is provided.

The rotation driving unit 130 includes a rotating support 131 connected to the loading plate 120 to rotatably support the loading plate 120 and a driving unit 130 connected to the rotating support 131, And a first support frame 133 for supporting the rotary motor 132 and the rotary support 131.

At this time, the first support frame 133 is provided to be movable on the first rail 111 of the work table 110. The position of the first support frame 133 can be set in advance before laser processing.

It is difficult to separate or separate the mobile phone case C loaded on the loading plate 120 during laser processing. In particular, the mobile phone case C loaded in the loading plate 120 needs to be supported firmly because it has to be rotated. To this end, a pressing plate 150 is provided.

The pressing plate 150 is disposed in parallel with the loading plate 120 and is pressed toward the loading cell 120 by being pressed against the loading cell 120 while approaching the loading plate 120, And serves to firmly support the cellular phone case (C).

The pressing plate 150 is further provided with a pressing block 151 which is in contact with the cell phone case C to press the cell phone case C. [ The pressing block 151 serves to firmly press the cell phone case C without damaging the cell phone case C. [

As shown in FIG. 12, the pressing plate 150 approaches or separates from the loading plate 120, and a plurality of guide bars 160 are provided to guide the movement of the pressing plate 150.

A plurality of guide bars 160 are connected to the corner areas of the loading plate 120 and the pressing plate 150 to guide the movement of the pressing plate 150.

The pressing plate 150 is coupled with a bar passing boss 155 through which the guide bars 160 are passed. The bar passing bosses 155 are coupled to the respective corner areas of the pressing plate 150, and serve as a place where the guide bars 160 are supported while being passed.

An actuator 170 is connected to the pressure plate 150. The pressing plate 150 may be guided by the guide bars 160 to move toward or away from the loading plate 120 during operation of the actuator 170. [

The actuator 170 is supported on the second support frame 175. At this time, the second support frame 175 is provided to be movable on the second rail 112 of the work table 110. The second support frame 175 can be pre-positioned with the initial setting.

The laser module 140 irradiates a laser beam toward the cell phone case C loaded on the loading plate 120 while approaching or separating from the loading plate 120 to perform laser processing on each side of the cell phone case C .

Since the positions of the long side and the short side of the mobile phone case C are different, it is necessary to adjust the distance of the laser processing by the laser module 140. [ Accordingly, the laser module 140 can be moved up / down. For this purpose, the column 143 and the slider 145 are provided.

The column 143 is a structure that is coupled to the work table 110 along the direction in which the laser module 140 is moved from one side of the loading plate 120.

The slider 145 is connected to the laser module 140 and the column 143 to drive the laser module 140 up / down on the column 143. The slider 145 is driven up / down by a distance determined by the controller 180 to advance the distance adjustment of the laser processing of the mobile phone case C by the laser module 140. [

On the other hand, a blower 190 is provided around the loading plate 120 for blowing compressed air toward the cellular phone case C when the cellular phone case C is processed. As described above, the blower 190 injects compressed air, thereby preventing foreign matter from accumulating on the cell phone case C during laser processing.

At this time, the blower 190 is connected to the gooseneck type support 191 and freely moved so that the compressed air injection position of the blower 190 can be adjusted.

Finally, the controller 180 controls the operation of the rotation driving unit 130, the slider 145, the laser module 140, and the actuator 170.

At this time, the controller 180 approaches the laser module 140 toward the cellular phone case C every time the cellular phone case C disposed between the loading plate 120 and the pressing plate 150 is rotated by 90 degrees, (C) are laser-processed. The specific control operation should be done again in the following operation description.

In this embodiment in which this role is performed, the controller 180 may include a central processing unit 181 (CPU), a memory 182 (MEMORY), and a support circuit 183 (SUPPORT CIRCUIT).

The central processing unit 181 is connected to one of various computer processors that can be industrially applied to control the operation of the rotation driving unit 130, the slider 145, the laser module 140 and the actuator 170 in the present embodiment. Lt; / RTI >

The memory 182 (MEMORY) is connected to the central processing unit 181. The memory 182 may be a computer readable recording medium and may be located locally or remotely and may be any of various types of storage devices, including, for example, random access memory (RAM), ROM, floppy disk, hard disk, At least one or more memories.

The support circuit 183 (SUPPORT CIRCUIT) is coupled with the central processing unit 181 to support the typical operation of the processor. The support circuit 183 may include a cache, a power supply, a clock circuit, an input / output circuit, a subsystem, and the like.

In this embodiment, the controller 180 controls the operation of the rotation driving unit 130, the slider 145, the laser module 140, and the actuator 170. At this time, a series of processes or the like in which the controller 180 controls the operation of the rotation driving unit 130, the slider 145, the laser module 140, and the actuator 170 may be stored in the memory 182. Typically, a software routine may be stored in the memory 182. The software routines may also be stored or executed by other central processing units (not shown).

Although processes according to the present invention are described as being performed by software routines, it is also possible that at least some of the processes of the present invention may be performed by hardware. As such, the processes of the present invention may be implemented in software executed on a computer system, or in hardware such as an integrated circuit, or in combination of software and hardware.

Hereinafter, a series of processes in which the cellular phone case C is laser-processed will be described with reference to Figs. 1 to 11 and 15.

The pressing plate 150 is separated from the loading plate 120 (S11) as shown in FIG. 1, FIG. 2, and the loading plate 120 and the pressing plate 150 are opened.

In this state, the mobile phone case C is loaded on the inside of the loading plate 120 as shown in FIG. 3 (S12).

4, the pressing plate 150 approaches the loading plate 120 by the actuator 170 so that the pressing block 151 of the pressing plate 150 presses and supports the mobile phone case C (S13 ).

5, the laser module 140 is lowered by a predetermined distance toward the cellular phone case C, and then the first side of the cellular phone case C is laser-processed by the laser module 140 at that position (S14).

The long side of the mobile phone case C can be laser-processed first, though not necessarily. At this time, the blower 190 is operated to inject compressed air, thereby preventing foreign matter from accumulating on the cellular phone case C during laser processing.

When the laser processing for the first side of the mobile phone case C is completed, the loading plate 120 and the pressing plate 150 are rotated 90 degrees by the rotation driving unit 130 as shown in FIG. 6 (S15). At the same time, the laser module 140 is lowered by a predetermined distance, and the laser module 140 laser-processes the second side of the cell phone case C at that position (S16). At this time, the blower 190 is operated to inject compressed air, thereby preventing foreign matter from accumulating on the cellular phone case C during laser processing.

When the laser processing for the second side of the mobile phone case C is completed, the loading plate 120 and the pressing plate 150 are further rotated 90 degrees by the rotation driving unit 130 as shown in FIG. 7 (S17). At the same time, the laser module 140 is lowered by a predetermined distance, and the laser module 140 processes the third side of the cell phone case C at that position (S18). At this time, the blower 190 is operated to inject compressed air, thereby preventing foreign matter from accumulating on the cellular phone case C during laser processing.

When the laser processing on the third side of the mobile phone case C is completed, the loading plate 120 and the pressing plate 150 are further rotated by 90 degrees by the rotation driving unit 130 as shown in FIG. 8 (S19). At the same time, the laser module 140 is lowered by a predetermined distance, and the laser module 140 causes the fourth side of the cell phone case C to be laser-processed at that position (S20). At this time, the blower 190 is operated to inject compressed air, thereby preventing foreign matter from accumulating on the cellular phone case C during laser processing.

When the laser processing of the four sides of the mobile phone case C is completed in this manner, the loading plate 120 and the pressing plate 150 are rotated in opposite directions by the rotation driving unit 130 as shown in FIG. 9, 4 (S21).

Then, the pressing plate 150 is separated from the loading plate 120 as shown in FIG. 10, and the processed cellular phone case C is taken out as shown in FIG. 11 (S22), so that the laser processing work of the cellular phone case C is simple &Lt; / RTI >

According to the present embodiment having the structure and function as described above, it is possible to manufacture the cellular phone case with high quality by processing the rim of the cellular phone case through the laser.

In particular, since the rim portion of the mobile phone case is laser-processed, it is possible not only to perform continuous operation but also to improve productivity per unit time and to improve the processing quality of the product.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. It is therefore intended that such modifications or alterations be within the scope of the claims appended hereto.

110: work table 111: first rail
112: second rail 120: loading plate
130: rotation drive part 131:
132: rotation motor 133: first support frame
140: laser module 143: column
145: slider 150: pressure plate
151: pressing block 155: bar passing boss
160: Guide bar 170: Actuator
175: second support frame 180: controller
190: Blower 191: Gooseneck type support

Claims

Work table;
A loading plate disposed at one side of the work table and loaded while the cell phone case to be processed is mounted;
A rotation driving unit connected to the loading plate for selectively rotating the loading plate;
A laser module for irradiating a laser beam toward the mobile phone case loaded on the loading plate while approaching or separating from the loading plate;
A pressing plate disposed in parallel with the loading plate and approaching the loading plate to press the mobile phone case loaded on the loading plate;
A plurality of guide bars connected to the loading plate and the pressing plate to guide movement of the pressing plate;
An actuator connected to the pressure plate, for moving the pressure plate toward or away from the loading plate; And
And a second support frame for supporting the actuator,
Characterized in that the second support frame is provided movably on a second rail of the work table,
The pressing plate is further provided with a pressing block which contacts the cell phone case to press the cell phone case,
And a bar passing boss through which the guide bar son passes is coupled to the pressing plate.

The method according to claim 1,
The rotation drive unit includes:
A rotating support for rotatably supporting the loading plate;
A rotary motor connected to the rotary support for generating a power for rotating the rotary support; And
And a first support frame for supporting the rotary motor and the rotary support,
Wherein the first support frame is provided so as to be movable on a first rail of the work table.

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The method according to claim 1,
Further comprising a controller for controlling operations of the rotation driving unit, the actuator, and the laser module,
Wherein the controller controls the laser module to be laser-processed by approaching the laser module to the cellular phone case every time the cellular phone case disposed between the loading plate and the pressing plate is rotated by 90 degrees. Laser processing apparatus.

The method according to claim 1,
A column coupled to the work table along a direction in which the laser module is moved at one side of the loading plate;
A slider connected to the laser module and the column to drive the laser module up / down on the column;
A blower for spraying compressed air toward the mobile phone case when the mobile phone case is processed; And
Further comprising a gooseneck-type supporter for freely movably supporting the blower so that the position of the blower is adjustable.

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