KR101088230B1 - Printing equipment for printed circuit board and method thereof with jumping squeeze - Google Patents

Abstract

PURPOSE: A printing equipment for printed circuit board and a method thereof with jumping squeeze are provided to improve printability and working efficiency through one printing method. CONSTITUTION: In a printing equipment for printed circuit board and a method thereof with jumping squeeze, a moving body(20) is included in a supporting frame(14). The moving body is slid to a printing direction and a printing reverse direction along the support frame. A support frame is installed in both ends of the support. A first squeeze(32) is moved to the top side of a first cylinder(31) and a body(12) horizontally. A second squeeze(34) is moved to the top side of a second cylinder(33) and a body horizontally. The second cylinder is combined in the moving body. A scraper(35) is combined in the moving body and is moved along the top side of the body.

Description

Printing equipment for printed circuit board and method for printing printed circuit board jumped squeeze position

The present invention relates to a printing apparatus and a printing method of a printed circuit board in which a squeeze position is jumped. More specifically, two squeezes are provided so that screen printing is performed on the printed circuit board by the two squeezes. The position of the squeeze is jumped before screen printing, so that the two squeezes are placed at the printing position of the printed circuit board, so that the printing of the printed circuit board is evenly performed by one printing operation, thereby improving the printability and work efficiency. The present invention relates to a printing apparatus of a printed circuit board to which a squeeze position to be brought is jumped and a printing method of the printed circuit board.

In general, a variety of electronic components are mounted on the surface of a printed circuit board (PCB), and these printed circuit boards are produced in a large amount by automation equipment, and are screen printing, component mounting, reflow, etc. Completed through

Among these, the screen printing process is to apply a solder paste (solder paste) in the molten state in a predetermined pattern on the printed circuit board so that various types of small electronic components can be mounted on the printed circuit board (surface mounting). It is a process.

Conventional screen printing method is to apply photoresist ink on a printed circuit board using one squeeze and a scraper. After setting one squeeze at a predetermined angle, the contact area between the squeeze and the screen is increased or decreased. Photoresist ink was applied to the printed circuit board located on the table of the screen device by adjusting the discharge of the resist ink.

In more detail, after placing a printed circuit board on a printing machine table, the screen is placed on the printed circuit board, the photoresist ink is poured on the screen, and the squeeze is repeated from one side of the screen to the other. By moving, the photoresist ink was passed through the screen and pushed onto the printed circuit board to coat the photoresist ink.

However, such a conventional screen printing method is not only difficult to uniformly apply photoresist ink to the entire printed circuit board, but also cannot form a predetermined thickness.

In addition, the conventional screen printing method is applied to the printed circuit board by the photoresist ink is not applied enough to cover the fine via hole formed in the printed circuit board, more specifically the edge portion of the plated through hole (PHT) When mounting a component, there is a problem that a short occurs at an edge portion of the fine via hole.

In addition, the photoresist ink is not sufficiently filled in the fine via holes formed in the printed circuit board, and when the reprinting of the printed circuit board is performed based on the photoresist ink, the photoresist ink may be formed inside the fine via holes due to the air pressure repulsion inside the fine via holes. As the unfilled space is formed, the unfilled space of the photoresist ink formed inside the fine via hole causes the photoresist ink to be submerged in the fine via hole, so that bubbles are generated or filled in the fine via hole due to thermal expansion during drying. There was a problem that the ink bursts.

As a prior art, a screen printing apparatus for a printed circuit board, which is registered in Korean Patent No. 10-0619339, has been devised. The first squeeze proceeds in the screen printing direction to fill photoresist ink in a fine via hole formed in the printed circuit board. And a second squeeze proceeding in a screen printing direction and a photoresist ink remaining on the screen after completion of the printing of the first and second squeezes to reapply the photoresist ink to a predetermined thickness on the printed circuit board. It comprises a scraper which proceeds in the reverse direction of the screen printing direction in order to apply on the screen to a predetermined thickness, wherein the first squeeze and the second squeeze are each provided using a different printing angle and pressure .

Accordingly, by performing one printing process using two different types of squeeze rubber, it is possible to obtain the effect of improving the productivity by eliminating the time loss caused by the repetitive work generated in the conventional reciprocating printing operation.

However, in the prior art, since the positions of the first squeeze and the second squeeze are fixed, the second squeeze pushes the printing ink first by placing the second squeeze at the first printing position on the printed circuit board. The squeeze has a problem that the printing effect is not properly obtained by the second squeeze proceeds along the second squeeze without the printing ink.

Further, in order to allow the printing ink to be applied to both the first squeeze and the second squeeze, the prior art allows the screen to be tilted according to the advancing direction of the first squeeze and the second squeeze, but by tilting the screen. Printing on a printed circuit board is not evenly performed, and there is a problem in that the cost of the device increases due to an additional configuration for tilting the screen.

The present invention has been made to solve the problems caused by printing on a conventional printed circuit board, provided with a first squeeze and a second squeeze for applying the printing ink, but the first squeeze and the first squeeze in the first printing position of the printed circuit board As the second squeeze is jumped and the printing is performed with the position of the first squeeze positioned at the first printing position of the printed circuit board, the printing ink is applied to the printed circuit board evenly over both the first squeeze and the second squeeze. The purpose of the present invention is to provide a printing device for a printed circuit board and a printing method of a printed circuit board with a jumped squeeze position to greatly improve the printability and work efficiency by allowing the printed circuit board to be printed through one printing operation. There is this.

The printing device of the printed circuit board jumps the squeeze position of the present invention as a means for achieving the above object, the body is provided with a control unit and the printed circuit board is mounted on the upper surface, hinged by the hinge portion on the upper side of the body And support frames provided at both sides of the support to lift and lower the hinge by rotating from an upper end of the body, and a printed circuit board printed by applying ink to a printed circuit board provided on the support and placed on the upper surface of the body. An apparatus, comprising: moving bodies provided on support frames provided on both sides of the support to slide along the support frame; A first squeeze connected to the first cylinder coupled to the movable body and horizontally moved along an upper surface of a body on which the printed circuit board is mounted by the movement of the movable body; A second squeeze connected to the second cylinder coupled to the movable body so as to be positioned at one side of the first cylinder, and a second squeeze horizontally moved along an upper surface of the body on which the printed circuit board is placed; The scraper is coupled to the movable body so as to be located at one side of the second squeeze, and includes a scraper horizontally moved along an upper surface of the body on which the printed circuit board is placed. The movable body to which the first squeeze, the second squeeze and the scraper are coupled is provided. The first squeeze is lowered by the first cylinder after being moved along the printing reverse direction of the printed circuit board, and then the position is changed by jumping to the initial printing position of the printed circuit board mounted on the upper surface of the body. The second squeeze is lowered by the two cylinders, the movable body is moved in the printing direction, and the first squeeze and the second squeezer apply ink to the printed circuit board mounted on the upper surface of the body, thereby printing the printed circuit board.

In addition, the present invention is a printing method of a printed circuit board, the printing reverse direction movement step of moving the first squeeze, the second squeeze and the scraper in the printing reverse direction of the printed circuit board mounted on the upper surface of the body of the printing apparatus; A jumping step of jumping the first squeeze, the second squeeze and the scraper moved in the printing reverse direction by the printing reverse direction moving step to the first printing position of the printed circuit board mounted on the upper surface of the body of the printing apparatus; A squeeze lowering step in which the first squeeze and the second squeeze jumped to the first printed position of the printed circuit board by the jumping step are lowered to the printed circuit board side; A printing direction moving step of moving the first squeeze, the second squeeze and the scraper, which are lowered by the squeeze descent step, in the printing direction of the printed circuit board; The printing step includes a printing step in which ink is applied by the first squeeze and the second squeeze moving in the printing direction of the printed circuit board by the printing direction moving step, and the printing of the printed circuit board is performed.

According to the present invention, a printing operation is performed while a first squeeze and a second squeeze are jumped to the first printing position of the printed circuit board in the process of printing the printed circuit board by the first squeeze and the second squeeze. Ink can be applied evenly over both the and the second squeeze, so that fine and even printing can be performed through one printing process, resulting in increased productivity and productivity.

1 is a perspective view showing a printing device of a printed circuit board jumped squeeze position of the present invention.
Fig. 2 is a configuration diagram of a state in which components of a printing device of a printed circuit board on which a squeeze position of the present invention is jumped are moved in the printing reverse direction.
Figure 3 is a configuration diagram of a state in which the main portion of the printing device of the printed circuit board jumped squeeze position of the present invention jumped to the initial printing position.
Figure 4 is a configuration of a state in which printing proceeds while the constituent portion of the printing device of the printed circuit board jumped squeeze position of the present invention in the printing direction.
5 is a configuration diagram showing an initial state of a printing device of a printed circuit board jumped squeeze position of the present invention.
6 is a process chart showing the process of the printing method of the present invention printed circuit board.

Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to the accompanying drawings. In describing the present invention, the term or word used in the present specification and claims is based on the principle that the inventor can appropriately define the concept of the term in order to best describe the invention of his or her own. It should be interpreted as meanings and concepts corresponding to the technical idea of

As shown in the present invention, a printing apparatus of a printed circuit board in which a squeeze position is jumped includes a body 12 having a control unit and a printed circuit board 11 mounted on an upper surface thereof, and a hinge on one side of an upper end of the body 12. The support 15 is hinged by the branch portion 13 and provided with support frames 14 and 14 on both sides thereof, which are hinged from the upper end of the body 12 to be lifted and lowered, and provided on the support 15. The present invention relates to a printed circuit board printing apparatus for printing by applying ink to a printed circuit board 11 mounted on an upper surface of the body 12.

The present invention, the movable body 20 which is provided on each of the support frame 14, 14 provided on both sides of the support member 15 and slides in the printing direction and the printing reverse direction along the support frame 14, 14 ), A body connected to the first cylinder 31 coupled to the movable body 20 and a lower portion of the first cylinder 31, on which the printed circuit board 11 is lifted by the movement of the movable body 20. A first squeeze 32 that moves horizontally along the upper surface of the (12), and the second cylinder 33 and the second cylinder coupled to the moving body 20 to be located on one side of the first cylinder (31) A second squeeze 34 which is connected to a lower portion of the body 33 and moves horizontally along an upper surface of the body 12 on which the printed circuit board 11 is placed, and the movable body so as to be located at one side of the second squeeze 34. The scraper 35 is coupled to the 20 and moves horizontally along the upper surface of the body 12 on which the printed circuit board 11 is placed. It has been achieved.

The first squeeze 32 is connected to the first cylinder 31 is lowered to the printed circuit board 11 side which is mounted on the upper surface of the body 12 by the operation of the first cylinder 31, the printed circuit The board is lifted from the substrate 11 side.

In addition, the second squeeze 34 is connected to the second cylinder 33 is lowered to the side of the printed circuit board 11 which is raised on the upper surface of the body 12 by the operation of the second cylinder 33, It is lifted from the printed circuit board 11 side.

According to the present invention constituted as described above, the movable body 20 to which the first squeeze 32, the second squeeze 34, and the scraper 35 are coupled is the reverse of the printing direction of the printed circuit board 11. After being moved along), the position is changed by being jumped to the initial printing position 11a of the printed circuit board 11 mounted on the upper surface of the body 12.

That is, after the first squeeze 32 and the second squeeze 34 are moved along the printing reverse direction a, the printing operation does not proceed immediately after the first squeeze 32 and the second squeeze 34 are moved to the first printing position 11a of the printed circuit board 11. Since the squeeze 32 and the second squeeze 34 are jumped and moved, since the position of the first squeeze 32 does not deviate from the initial printing position 11a of the printed circuit board 11, the first squeeze ( 32) and the second squeeze 34, the ink is applied evenly while the printing operation is in progress.

This solves the problem caused by the ink applied to only one squeeze of the two squeezes during the initial printing operation in the process of applying the ink by the two squeeze in the conventional printing apparatus provided with two squeeze.

In other words, in the conventional printing apparatus, even if two squeezes are provided, only one squeeze is positioned at the first printing position and the other squeeze is positioned out of the initial printing position. As the squeeze of all the ink is applied to apply the squeeze was not expected at all the effect obtained by the other squeeze, the present invention, the first squeeze 32 and the second squeeze 34 is first jumped before printing the position is printed Since the second printed circuit board 11 is located at the first printed position 11a of the circuit board 11, the second squeeze 34 covers the entire printed circuit board 11, and the first squeeze 32 is the printed circuit board 11. By applying the via hole of the printed circuit board, the printed circuit board can be evenly printed through one printing operation.

In the printing operation of the printed circuit board 11 according to the present invention, the first squeeze 32 by the first cylinder 31 and the second squeeze 34 by the second cylinder 33 are respectively printed circuits. The first squeeze on the printed circuit board 11 is lowered to the substrate 11 side, the movable body 20 is mounted on the upper surface of the body 12 while moving in the printing direction (b) as shown in FIG. The ink is applied by the 32 and the second squeeze 34 so that the second squeeze 34 evenly prints the entire printed circuit board 11 and the first squeeze 32 is the via hole of the printed circuit board 11. The printing of the printed circuit board is performed by printing a portion or a portion not yet printed by the second squeeze 34.

The method of printing a printed circuit board according to the present invention includes a printing reverse direction moving step (S1) in which a first squeeze, a second squeeze and a scraper move in a printing reverse direction of a printed circuit board mounted on an upper surface of a body of the printing apparatus, and the printing reverse direction moving. A jumping step (S2) in which the first squeeze, the second squeeze and the scraper moved in the printing reverse direction by the step jump to the initial printing position of the printed circuit board mounted on the upper surface of the body of the printing apparatus, and the printing by the jumping step The first squeeze and the second squeeze and the first squeeze and the second squeeze jumped to the printed circuit board side, the squeeze lowering step (S3), and the first squeeze, second squeeze and the scraper lowered by the squeeze lowering step A printing direction moving step (S4) for moving in the printing direction of the printed circuit board, and a first squeeze for moving in the printing direction of the printed circuit board by the printing direction moving step; Ink is applied by a squeegee 2 is made contains a print step (S5) printing is in progress in the printed circuit board.

Accordingly, the first squeeze 32 and the second squeeze 34 which are moved in the reverse printing direction are not immediately printed, but are jumped by the jumping step S2 so that the first squeeze 32 is printed circuit board 11. Since the next print job located at the first print position 11a of, the fine print job is performed by the first squeeze 32 and the second squeeze 34.

As described above, the present invention has been described with reference to a preferred embodiment of the present invention as being capable of various modifications, but the present invention is not limited to such an embodiment, and the embodiment is simply applied in combination with the known art. Together with the claims and the detailed description of the present invention it will be seen that the technology that can be used by those skilled in the art that the present invention belongs to be included in the technical scope of the present invention.

11: printed circuit board 11a: initial print position
12 body 13 hinge portion
14 support frame 15 support
20: moving body 31: first cylinder
32: first squeeze 33: second cylinder
34: second squeeze 35: scraper
a: reverse printing direction b: printing direction
S1: printing reverse movement step
S2: Jumping Step
S3: Squeeze descent stage
S4: printing direction shifting step
S5: Printing Step

Claims (2)

The body 12 is provided with a control unit and the printed circuit board 11 is placed on the upper surface, and hinged by a hinge portion 13 on one side of the upper end of the body 12 and supporting frames 14, 14 on both sides. And a support 15 which is hinged from an upper end of the body 12 to be lifted and lowered, and a printed circuit board 11 provided on the support 15 and mounted on an upper surface of the body 12. In the printing apparatus of a printed circuit board to apply and print
Moving bodies (20) which are respectively provided on the support frames (14) and (14) provided on both sides of the support member (15) and are slidably moved in the printing direction and the printing reverse direction along the support frames (14) and (14);
A body 12 connected to the first cylinder 31 coupled to the movable body 20 and the lower portion of the first cylinder 31, on which the printed circuit board 11 is lifted by the movement of the movable body 20. A first squeeze 32 which moves horizontally along an upper surface of the first squeeze 32;
A body on which the printed circuit board 11 is mounted by being connected to a lower portion of the second cylinder 33 and the second cylinder 33 coupled to the movable body 20 so as to be located at one side of the first cylinder 31. A second squeeze 34 which moves horizontally along the upper surface of the surface 12;
And a scraper 35 coupled to the movable body 20 to be positioned at one side of the second squeeze 34 to move horizontally along an upper surface of the body 12 on which the printed circuit board 11 is placed. ,
The movable body 20 to which the first squeeze 32, the second squeeze 34, and the scraper 35 are coupled is moved along the printing reverse direction a of the printed circuit board 11.
After the position is moved by jumping to the initial printing position (11a) of the printed circuit board 11 is placed on the upper surface of the body 12,
The first squeeze 32 is lowered by the first cylinder 31, the second squeeze 34 is lowered by the second cylinder 33, and the movable body 20 is moved in the printing direction b. The first squeeze 32 and the second squeeze 34 is evenly applied to the printed circuit board 11 mounted on the upper surface of the body 12, characterized in that for printing the printed circuit board A printing device for a printed circuit board on which a squeeze position is jumped.
In the printing method of printing by applying ink to a printed circuit board by two squeeze,
A printing reverse direction moving step of moving the first squeeze, the second squeeze and the scraper in the printing reverse direction of the printed circuit board mounted on the upper surface of the body of the printing apparatus (S1);
A jumping step (S2) in which the first squeeze, the second squeeze and the scraper moved in the printing reverse direction by the printing reverse direction moving step jump to the first printing position of the printed circuit board mounted on the upper surface of the body of the printing apparatus;
A squeeze lowering step (S3) in which the first squeeze and the second squeeze jumped to the first printed position of the printed circuit board by the jumping step are lowered to the printed circuit board side;
A printing direction moving step (S4) of moving the first and second squeezes and the second squeeze and the scraper which are lowered by the squeeze lowering step in the printing direction of the printed circuit board;
The printing step (S5) is further characterized in that the ink is applied by the first and second squeeze and the second squeeze moving in the printing direction of the printed circuit board by the printing direction moving step further comprises a printing step (S5) Method of printing a printed circuit board.

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