KR101425814B1 - Apparatus for laser marking - Google Patents

Abstract

The present invention relates to a laser marking apparatus and, more specifically, to a laser marking apparatus capable of performing a laser marking on substrates inserted to a plurality of lines. According to the present invention, regarding a laser marking apparatus used for an SMT process, by differently combining a plurality of insertion holes and at least one discharge hole, the number of the laser marking apparatus can be fewer than the number of the production lines, thus increasing work efficiency and reducing facility costs.

Description

[0001] APPARATUS FOR LASER MARKING [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser marking apparatus, and more particularly, to a laser marking apparatus capable of performing laser marking on a substrate that is inserted into a plurality of lines.

The history of electronic industry development can be said to be the history of pursuing the miniaturization of parts and the high density mounting of circuits for realizing small size and light weight as well as functional improvement of devices. Today's SMD / SMT (Surface Mount Device / Surface Mount Technology) has inevitably evolved from this demand. In order to achieve a higher density mounting, it is necessary not only to miniaturize individual components but also to consider how to reduce the space loss due to the mounting, such as lead wires and mutual wiring between parts It must be. In this sense, it is necessary to systematically consider the components including the mounting method.

Electronic products are constantly "light", "thin", "short" and "small", and can be handled by SMT (Surface Mount Technology) process.

The SMT process automatically mounts parts (semiconductors, diodes, chips) on a PCB (Printed Circuit Board) with one or more equipment and attaches them to the PCB with a bond or cream solder for electrical connection of the parts. .

A laser marking apparatus used in the SMT process will be briefly described below.

Laser marking generally marks necessary information on a substrate. When a substrate to be marked is inserted, it marks the information required for a substrate such as a bar code, a letter, and a picture on a loaded substrate.

Conventionally, a single laser marking apparatus is provided on one production line to produce a substrate.

Although each apparatus used in the SMT process is provided in a single production line to produce a substrate, the time required for each apparatus to process the work of the corresponding process is different, so that the apparatus with the slowest processing time There is a problem that the production efficiency is deteriorated by setting and managing the process time corresponding to each device in accordance with the standard.

Korean Unexamined Patent Publication [2003-0087331] discloses "a marking method and a marking apparatus for a semiconductor substrate having laser marking means ".

Korean Published Patent [2003-0087331]

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a laser marking apparatus, a substrate marking method, And an object of the present invention is to provide a device.

1. A laser marking apparatus used in a surface mount technology (SMT) process, including various sensors, for marking a substrate, the apparatus comprising: an input port (110); an input door (120) A plurality of input units 100 including an input door opening / closing unit 130 for opening / closing the door; At least one discharge unit 200 including an outlet 210, an outlet door 220 and an outlet door opening / closing unit 230 for opening / closing the outlet door 220; A stage 300 which moves to the inlet 110 and the outlet 210 and whose width is adjusted according to the size of the substrate to be introduced through the inlet 110; A camera 400 for capturing an image of the substrate; A laser marking unit 500 for marking according to a model of the substrate identified using the camera 400; A motion controller 600 for controlling the stage 300; An input / output board (700) for receiving a signal of the various sensors and sending a door open / close signal to the closing door opening / closing part (130) and the discharge door opening / closing part (230); Output board 700 and the camera 400. The input / output board 700 is connected to the camera 400, the laser marking unit 500, the motion controller 600, and the input / output board 700, And a computer 800 for controlling the board 700, the motion controller 600, and the laser marking unit 500.

The input and output board 700 receives the respective states through the respective sensors that detect the state of the closing door 120, the state of the discharge door 220, the state of the substrate, and the discharge state of the substrate And transmits the control signal of the closing door 120 and the control signal of the discharging door 220 from the computer 800 to the discharging door opening and closing part 130 and discharging And transmits it to the door opening / closing unit 230.

The computer 800 receives signals from various sensors through the input / output board 700 and determines the state of the door 110, the state of the discharge door 210, the state of the substrate, and the state of discharge of the substrate And sends a door open / close signal to the input / output board 700. The controller 400 confirms the model of the substrate and the substrate using the image input through the camera 400, A control signal of the stage 300 is sent to the controller 600 and a predetermined laser marking area and predetermined marking information are sent to the laser marking unit 500.

According to the present invention, in the laser marking apparatus used in the SMT process, by combining a plurality of injection ports and at least one discharge port, when there are several production lines, the number of laser marking devices It is possible to increase the work efficiency and reduce the equipment cost.

In addition, it is possible to reduce a facility (shuttle conveyor) that is responsible for distributing a substrate due to a change in a production line, thereby lowering the unit cost of the entire facility, thereby lowering the manufacturing cost of the substrate, The maintenance cost is reduced.

1 is a conceptual diagram of a laser marking apparatus according to an embodiment of the present invention;
2 is a conceptual diagram showing door opening and closing of a laser marking apparatus according to an embodiment of the present invention;
3 is an exemplary view showing a substrate distribution of a laser marking apparatus according to an embodiment of the present invention;

Hereinafter, a laser marking apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a conceptual diagram of a laser marking apparatus according to an embodiment of the present invention. FIG. 2 is a conceptual diagram illustrating opening and closing of a door of a laser marking apparatus according to an embodiment of the present invention. Fig. 3 is a view showing a substrate distribution of a laser marking apparatus according to the present invention;

1, a laser marking apparatus according to an exemplary embodiment of the present invention is used in a surface mount (SMT) process and includes a variety of sensors, An input unit 100, a discharge unit 200, a stage 300, a camera 400, a laser marking unit 500, a motion controller 600, an input / output board 700, and a computer 800 do.

The input unit 100 includes a plurality of input ports 110, an input door 120, and an input door opening / closing unit 130 for opening and closing the input door 120.

The inlet 110 is an inlet through which the substrate is introduced.

The inlet door 120 is provided to open or close the inlet 110.

The loading door opening / closing unit 130 moves the loading door 120 to close the loading port 110 when there is no substrate to be loaded into the loading port or when the substrate needs to be loaded, So as to open the inlet 110. At this time, the input door opening / closing unit 130 receives a control signal through the input / output board 700.

The discharge unit 200 includes at least one of an outlet 210, an outlet door 220, and an outlet door opening / closing unit 230 for opening and closing the outlet door 220.

The discharge port 210 is an outlet through which the substrate is discharged.

The outlet door 220 is provided to open or close the outlet 210.

The discharge door opening and closing part 230 moves the discharge door 220 to close the discharge opening 210 when there is no substrate to be discharged to the discharge opening or to wait for the discharge of the substrate, The discharge port 210 is opened. At this time, the discharge door opening / closing part 230 receives a control signal through the input / output board 700.

According to the present invention, in the laser marking apparatus used in the SMT process, since a plurality of input ports and at least one output port can be used in various combinations, it is possible to distribute various types of substrates, thereby improving work efficiency. For example, when two input ports 110 are formed and one output port 210 is formed, the same substrate is input from two production lines, laser marking is performed, and the same is output to one line, Can be lowered. As another example, two input ports 110 are formed, two output ports 210 are formed, and substrates of two different ends are input from respective production lines, laser marking is performed, The unit cost of the facility can be lowered. This is because the time required for the laser marking process is faster than other processes.

In addition, it is possible to reduce the number of laser marking apparatuses that can reduce the facility (shuttle conveyor) that is responsible for distributing the substrate due to the change of the production line, and the costly expensive laser marking apparatuses, The manufacturing cost of the substrate is lowered, and the number of facilities is reduced, thereby reducing the maintenance cost.

As shown in FIG. 2, when there are two inlet ports 110 and two outlet ports 210, the inlet door opening / closing part 130 of the inlet part 100 can be constructed using one pneumatic cylinder . In Fig. 2 (a), the cylinder of the pneumatic cylinder is pushed, and the input port on the left side is closed and the input port on the right side is opened. 2 (b), the left input port is opened and the right input port is closed by pulling the cylinder of the pneumatic cylinder. 2 (a), the discharging door opening / closing part 230 of the discharging part 200 can also be seen by pushing the cylinder of the pneumatic cylinder and closing the discharge port on the left side and the discharge port on the right side. 2 (b), the cylinder of the pneumatic cylinder is pulled so that the left outlet is opened and the right outlet is closed.

If one of the ports is always open, or if one of the ports is always open, this can be configured to reduce the number of pneumatic cylinders and thus reduce the cost of production.

The stage 300 moves to the inlet 110 and the outlet 210 and the width of the rail is adjusted according to the size of the substrate to be introduced through the inlet 110.

As shown in FIG. 3, the stay 300 is moved to a loading port through which a substrate is to be inserted among a plurality of input ports. When the substrate is placed on the stage, the guide for fixing the substrate is adjusted to adjust the rail width When the laser marking operation is completed on the substrate fixed by the guide, the substrate is moved to the discharge port from which the substrate is to be discharged, and the substrate is discharged.

The camera 400 takes an image of the substrate. At this time, the photographed image can be used for the purpose of distinguishing the upper surface and the lower surface of the substrate, the use for distinguishing the type of the substrate, and the use for identifying the position of the recognition mark of the substrate.

The laser marking unit 500 performs marking according to the model of the substrate confirmed using the camera 400. In other words, the computer 800 determines the position and type of the substrate using the image photographed through the camera 400, and controls the laser marking unit 500 so that laser marking can be performed accordingly, Laser marking can be performed.

The motion controller 600 controls the stage 300. In other words, the computer 800 determines the position and type of the substrate using the image photographed through the camera 400, and determines whether the region to be laser-marked on the substrate is the laser marking of the laser marking unit 500 The laser marking can be performed without moving the laser marking unit 500 by controlling the stage 300 to be positioned in the region. This is because, in general, when the laser marking unit is moved at a high speed due to the heavy weight of the laser marking unit, a lot of noise and vibration may occur and there is a fear of reduction in durability and failure. Therefore, So as to perform laser marking on the substrate.

The input / output board 700 receives signals of the various sensors and sends door open / close signals to the closing door opening / closing part 130 and the discharge door opening / closing part 230.

In other words, the input / output board 700 includes a sensor for sensing the state of the closing door 120 (opening / closing), a sensor for detecting the state of the discharging door 220 (opening / closing) And a sensor for detecting the discharge state of the substrate to the computer 800. The input door opening / closing unit 130 and the discharge door opening / closing unit 130, which are input from the computer 800, 230 and may transmit a control signal to the door open / close units 130 and 230.

At this time, the input / output board 700 receives each state through each sensor that detects the state of the closing door 120, the state of the discharge door 220, the state of the substrate being loaded, and the state of discharging the substrate And transmits the control signal of the closing door 120 and the control signal of the discharging door 220 from the computer 800 to the discharging door opening and closing part 130 and discharging And transmits it to the door opening and closing unit 230.

The computer 800 is connected to the camera 400, the laser marking unit 500, the motion controller 600 and the input / output board 700 and receives information input through the input / output board 700 and the camera 400 Output board 700, the motion controller 600, and the laser marking unit 500 using the control signal.

At this time, the computer 800 receives signals of various sensors through the input / output board 700 and determines the state of the closing door 110, the state of the discharging door 210, the closing state of the substrate, And sends a door open / close signal to the input / output board 700. The controller 400 confirms the model of the substrate and the substrate using the image input through the camera 400, A control signal of the stage 300 is sent to the controller 600 and a predetermined laser marking area and predetermined marking information are sent to the laser marking unit 500. [

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: input portion 110: input port
120: Input door 130: Input door opening / closing part
200: discharging part 210: discharging port
220: Exit door 230: Exit door opening / closing part
300: stage 400: camera
500: laser marking unit 600: motion controller
700: input / output board 800: computer

Claims (3)

1. A laser marking apparatus used in a surface mount (SMT) process, including various sensors, for marking a substrate,
A plurality of input units 100 including an input port 110, an input door 120, and an input door opening / closing unit 130 for opening / closing the input door 120;
At least one discharge unit 200 including an outlet 210, an outlet door 220 and an outlet door opening / closing unit 230 for opening / closing the outlet door 220;
A stage 300 which moves to the inlet 110 and the outlet 210 and whose width is adjusted according to the size of the substrate to be introduced through the inlet 110;
A camera 400 for capturing an image of the substrate;
A laser marking unit 500 for marking according to a model of the substrate identified using the camera 400;
A motion controller 600 for controlling the stage 300;
An input / output board (700) for receiving a signal of the various sensors and sending a door open / close signal to the closing door opening / closing part (130) and the discharge door opening / closing part (230); And
The input and output boards 700 and 700 are connected to the camera 400, the laser marking unit 500, the motion controller 600 and the input and output board 700. The information input through the input and output board 700 and the camera 400, A computer 800 for controlling the motion controller 700, the motion controller 600, and the laser marking unit 500;
And a laser marking unit.
The apparatus of claim 1, wherein the input / output board (700)
The respective states are input through respective sensors for sensing the state of the loading door 120, the state of the discharge door 220, the loading state of the substrate and the discharging state of the substrate, And transmits the control signal of the closing door 120 and the control signal of the discharging door 220 from the computer 800 to the closing door opening and closing part 130 and the discharge door opening and closing part 230 Wherein the laser marking device is characterized by:
2. The computer system (800) of claim 1, wherein the computer
Output board 700 to check the state of the input door 120, the state of the discharge door 220, the state of the substrate, and the discharge state of the substrate. The input / output board 700 And transmits the door open / close signal to the motion controller 600. The motion controller 600 checks the model of the substrate and the substrate using the image input through the camera 400, 300, and sends a predetermined laser marking area and predetermined marking information to the laser marking unit (500).

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