KR100541351B1 - Practicable double faced marking the laser marking apparatus - Google Patents

Abstract

The present invention relates to a laser marking machine for marking a circuit pattern or other printed matter on a product (eg a circuit board) by a laser beam, and in particular, the present invention is a main feature of the configuration of the mechanism to enable automatic marking on both sides of the product Has

A characteristic constitution of the present invention includes a main body including an upper plate, substrate supply means for supplying a substrate to be marked on one side of the upper plate, and a substrate recovery means for recovering a substrate mounted on the other side of the upper plate. A laser marking machine having;

It is installed between the substrate supply means and the substrate recovery means to support the substrate to be marked supplied from the substrate supply means in a markable state, which can be lifted by the lifting means while being inverted in the lowered state by the inverting means. Working table; And a marking unit comprising a laser head positioned on the work table and performing laser marking on a substrate seated on the work table, and an x and y orthogonal robot for moving the laser head in the x and y directions.

Laser marker. Circuit Board, Double Side Marking

Description

Practicable double faced marking the laser marking apparatus             

1 is a front view of a laser marker according to the present invention

2 is a right side view of the laser marker according to the present invention;

3 is a plan view of a laser marking machine according to the present invention;

Figure 4 is a perspective view of the main portion of the laser marker according to the present invention

5 is a view of FIG. 4 viewed in the A direction;

6 is a schematic view of a marking unit

7A is a state in which the work table is lowered

7b is a state in which the work table is reversed

[Description of Symbols for Main Parts of Drawing]

40: work table 42a, 42b: belt conveyor

46a, 46b: Installation panel 50: Marking unit

60: lifting means 61: driven sprocket

62: drive sprocket 63: chain

64: chain motor 70: reversal means

71: pinion gear 72: cylinder

73: rack gear 80: overrun prevention stopper

The present invention relates to a laser marking machine for marking a circuit pattern or other printed matter on a product (eg a circuit board) by a laser beam, and in particular, the present invention is a main feature of the configuration of the mechanism to enable automatic marking on both sides of the product Has

The circuit board forms a circuit pattern as a previous work for inserting electronic components, or uses ink or a laser beam to mark necessary matters for production control and quality control.

These marking operations are largely divided into ink marking using ink and laser marking using a laser beam. Recently, there is no room for static electricity by non-contact marking using a laser beam, and a certain amount of productivity is achieved by marking up to several hundred characters per second. Laser marking machines are guaranteed and are free from contamination by ink.

However, the conventional laser marking machine can only mark one surface of the circuit board, so that the marking of the back surface requires the operator to turn over the circuit board each time. Therefore, there is a problem that the marking time takes a long time because the operator must be arranged to flip the circuit board for each device, as well as to stop the operation of the device for a while while flipping the circuit board.

Accordingly, the present invention has been made in order to solve the above problems, the main object is to provide a laser marker capable of automatic marking on both sides of the circuit board.

The main configuration for achieving the object of the present invention, the main body including the upper plate, the substrate supply means for supplying a substrate to be installed on one side of the upper plate for marking, and installed on the other side of the upper plate A laser marking machine having a substrate recovering means for recovering a substrate; It is installed between the substrate supply means and the substrate recovery means to support the substrate to be marked supplied from the substrate supply means in a markable state, which can be lifted by the lifting means while being inverted in the lowered state by the inverting means. Working table; Located at the top of the workbench and includes a laser head for laser marking on a substrate seated on the workbench, and a marking unit consisting of x, y orthogonal robot for moving the laser head in the x, y direction.

At this time, the elevating means is composed of a driven drive sprocket which is installed to move up and down with a work table, a chain connected to the work table with the driven and driven sprocket, and a chain drive motor for rotating the drive sprocket. Is characterized by

The reversing means comprises a cylinder which is elevated with the workbench, a rack gear installed on the rod of the cylinder, a pinion gear installed on the center rotation shaft of the workbench and engaged with the rack gear.

In addition, it is preferable that a stopper is installed at the ending portion of the inversion trajectory when the work table is inverted.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 6B. The laser marking device of the present invention enables printing on both sides of the substrate by inverting the mounting table on which the marking operation is performed, but lowers the interference with the laser head before the inversion so as to avoid collision with the laser head located at the upper part of the mounting table. It has a mechanism to invert and then return to its original position.

In a specific configuration for this purpose, the main body 10 having the upper plate 11, the substrate supply means 20 for supplying the substrate 1 to be installed on the introduction side of the upper plate for marking, and the upper plate From the laser marker having the substrate recovery means 30 for recovering the substrate 1 marked and installed on the derivation side,

A work table 40 for marking the substrate 1 is installed between the substrate supply means 20 and the substrate recovery means 30. In addition, the upper side of the work table 40 is configured to include a marking unit 50 having a laser head 53 which is moved in the x, y direction by the x, y robot (51, 52).

At this time, the work table 40 is provided with a pair of guide panels 41, the belt conveyors (42a, 42b) are installed on each inner surface spaced apart, these guide panels 41 by the gap adjusting means 44 Interval adjustment is possible.

The belt conveyors 42a and 42b are driven by a belt drive motor 43 fixed to the guide panel 41. The belt conveyors are provided with a pair up and down so that the substrate 1 has an upper belt conveyor 42a. ) And the lower belt conveyor 42b to pass through the state (see Fig. 4). Therefore, it is possible to prevent the substrate from falling off the workbench when the worktable 40 is inverted.

In addition, the front and rear sides of the work table 40 is provided with a departure prevention stopper 45 to prevent the substrate (1) located in the work table to be separated from the front or rear of the work table when the work table is inverted, the substrate stopper is a cylinder It is provided by the 46 so as to be able to move up and down, and serves to prevent the board | substrate 1 which entered the worktable 40 from leaving to the left and right sides of a worktable.

In addition, the front and rear of the work table 40, the installation panel (47a, 47b) for installing the various additional devices to be described later are located in front and rear, respectively. At this time, the work bench 40 and the installation panels 47a and 47b are lifted together by the lifting means which will be described later, and the work bench 40 is rotatably supported by both installation panels.

In addition, the work table 40 is elevated by the elevating means 60, the highest value is a position parallel to the substrate supply means 20 and the substrate recovery means 30, the lowest position is the work table 40 is to be reversed The position may be any position that does not interfere with the laser head 53.

The lifting means 60 is fixed to the driven sprocket 61 and the driving sprocket 62 and the mounting panel 47b at the rear while being wound around the sprocket, which are installed at the lower part of the upper plate 11 and the main body 10. Chain 63 and a chain motor 64 for rotationally driving the drive sprocket 62.

Therefore, as shown in FIG. 2, when the chain 63 is driven to rotate, the rear mounting panel 47b and the work table 40 coupled to the upper side of the rear mounting panel are elevated according to the driving direction. Thus, the lifting means 60 is not necessarily limited to the chain, it will be possible to use a screw shaft or a cylinder.

On the other hand, the ball bush 48 is installed on the rear mounting panel 47b for the stable lifting of the work table 40, and the vertical guide shaft 12 to be assembled with the ball bush is installed in the main body 10. .

In addition, since the work table 40 is inverted by the inverting means 70, double-sided marking of the substrate 1 seated on the work table is possible. The reversing means 70 is a pinion gear 71 is installed on the front center axis of the central shaft 40a of the work table 40, the cylinder 72 is fixed to the front mounting panel 47a, It is installed in the cylinder rod is lifted by the rod operation and consists of a rack gear 73 meshed with the pinion gear (71).

In addition, an overrun prevention stopper 80 is installed so that the work table 40 stops at the correct position (180 ° rotation position) without being overrun when inverted by the reversing means 70. The reverse stopper 80 is constituted by providing shock absorbers 82 on both sides of the stopper bracket 81 fixed to the front mounting panel 47a, and the pair of shocks on the work table 40. A stopper block 83 which is stopped by contacting the pressure absorber 82 is provided.

Looking at the reason for the installation of the reversing stopper 80, although the work table 40 sets the lifting angle of the cylinder 72 to set the exact angle of inversion, it can be overrun without stopping at the exact point by the inertia force during the reversal process. This configuration is taken into account.

On the other hand, the marking unit 50 installed on the upper side of the workbench 40 finds the marking position already designated on the substrate 1 seated on the workbench 40 and moves in the x and y directions for marking. The x-axis robot 51, which is a fixed axis, the y-axis robot 52 installed on the x-axis robot and transported along the longitudinal direction of the x-axis robot, and the length of the y-axis robot installed on the y-axis robot It consists of a laser head 53 which is conveyed along a direction.

Referring to the operation of the laser marker of the present invention having the configuration as described above are as follows.

First, when it is time to load the substrate to be marked from the substrate supply means 20 into the work table 40, the separation prevention stopper 45 installed at the introduction of the work table 40 on the loading side is lifted up by its own cylinder Allowing the substrate to be introduced and then descending again after the substrate is seated prevents further substrate introduction.

In this way, the laser head 53 of the marking unit 50 positioned above the substrate 1 on the work table 40 is moved in the x and y directions by the x and y axis robots 51 and 52. As it moves, it will laser mark to the location already specified.

After the one-side marking is finished, the work table 40 should be reversed for the back marking, but the work table is a lifting means consisting of a chain and a sprocket in order to avoid interference with the laser head located on the upper side. It descends by a certain distance by 60 and escapes from the interference area with the laser head, and is then turned 180 degrees by the inverting means 70 consisting of the rack gear and the pinion gear at that position.

Although the lifting clearance of the cylinder 72 is set accordingly in order to accurately set the inversion angle of 180 ° during the inversion operation of the work table 40, the end of the 180 ° trajectory is usually exceeded by 180 ° by the inertia force. By installing an overrun prevention stopper 80 in the (ending) portion, the working table prevents the inversion over.

Thereafter, the inverted work table 40 rises to a point parallel to the substrate supply means 20 and the substrate recovery means 30 by the elevating means 60, and then the back surface thereof is marked by the marking unit 50. .

In this way, the double-sided marking is completed, the substrate 1 is transferred to the final substrate recovery means 30 by allowing the stopper 45 located at the outlet of the work table 40 to be lifted by its cylinder to allow discharge.

As described above, the laser marking device of the present invention can automatically mark the both sides of the substrate, thus eliminating the need for an operator to flip the substrate and eliminating the need to stop the machine while flipping the substrate, thereby significantly reducing the marking time. There are advantages.

Claims (4)

A laser marking machine having a main body including an upper plate, substrate supply means installed on one side of the upper plate to supply a substrate to be marked, and substrate recovery means installed on the other side of the upper plate to recover the marked substrate; It is installed between the substrate supply means and the substrate recovery means to support the substrate to be marked supplied from the substrate supply means in a markable state, which can be lifted by the lifting means while being inverted in the lowered state by the inverting means. Working table; And a marking unit comprising a laser head positioned on the work table and performing laser marking on a substrate seated on the work table, and an x and y orthogonal robot for moving the laser head in the x and y directions. Laser marking machine with double side marking. The method of claim 1, Lift means, Double-sided comprising a driven drive sprocket which is installed to be elevated with the work table, a chain connected to the work table while being wound around the driven drive sprocket, and a chain drive motor for rotationally driving the drive sprocket. Markable laser marker. The method of claim 1, Reversal means, A cylinder lifted with the work table; A rack gear mounted to the rod of the cylinder; A laser marking machine capable of marking on both sides of the worktable, wherein the pinion gear is engaged with the rack gear. The method of claim 1, The double-side marking laser marking device, characterized in that the overrun prevention stopper is installed in the ending portion of the inversion trajectory when the worktable is inverted.

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