KR20090112374A - Having a printing position revision apparatus electro component printing system - Google Patents

Abstract

PURPOSE: An electro component printing system having a printing position revision apparatus is provided to improve the print quality and reliability by detecting exact evaporation in real time. CONSTITUTION: The base printing unit(10) prints one side of object(1) on the base printing layer. The evaporation printing unit(20) prints the evaporation printing layer on the base printing layer. The base printing unit is comprised of the first one element roller(12), and the first blanket roller and the first impression roller(16). The evaporation printing unit is composed of the second element roller(22), and the second blanket roller and the second impression roller(26). The position error sensing means senses the position error of the base printing layer and evaporation printing layer.

Description

Electronic device printing system having a printing position correction device TECHNICAL FIELD

The present invention relates to an electronic device printing system having a printing position correction device.

More particularly, the present invention relates to an electronic device printing system having a printing position correcting device capable of improving print quality by correcting in real time so that a base print layer and a deposition print layer do not shift when performing multi-layer printing on a printed object.

The electronic device printing method refers to a method of attribute printing a large amount of electronic devices such as RFID antennas, polymer transistors, flexible displays, and solar cells by well-known roll to roll printing technology.

The electronic device printing method may be laminated printing (hereinafter referred to as 'deposition printing').

Deposition printing is a method of printing at least one deposition print layer on the base print layer, and it is important that the deposition print is performed accurately so that the base print layer and the deposition print layer or the deposition print layer and the deposition print layer do not deviate from each other. Do.

For the deposition printing, a base printing unit for printing the base printing layer and a deposition printing unit for printing the deposition printing layer should be provided.

In the following description, two printing units are provided for clarity, and the rollers will be described as an example of a three-roll method, that is, a gravure offset printing method (see FIG. 1).

The base printing unit 10 is provided with a plate-making roller 12 in which a negative printing pattern is formed and is forcibly rotated by a driving motor (not shown), and is in line contact with the plate-making roller 12 to be transferred from the plate-making roller. The blanket roller 14 which transfers an ink pattern to the to-be-printed object 1, and the to-be-printed object 1 which are installed in line contact with the blanket roller 14, and are passed between the blanket rollers are pressed by a suitable pressure. By means of an impression roller 16 to thereby achieve good printing; The vapor deposition printing unit 20 has the same configuration as the base printing unit 10 (engraving roller 22, blanket roller 24, impression roller 26).

Accordingly, as shown in FIG. 1, the base printed layer 2 is printed on one surface of the printed object 1 while passing through the base printing unit 10, and the base printed layer is sequentially passed through the deposition printing unit 20. The vapor deposition printed layer 3 is printed on (2).

In the process of the printed object 1 passing through the base printing unit 10 and the deposition printing unit 20 sequentially, the base printed layer 2 as shown in the example of FIG. 2 due to various reasons such as mechanical defects or transfer defects. ) And the deposition print layer 3 are shifted from each other, but conventionally, a correction means for correcting the printing deviation of the base print layer and the deposition print layer is not provided, thereby resulting in a decrease in print quality.

Accordingly, the present invention has been proposed to solve the conventional problems as described above, the main object of the present invention is to correct the printing position in real time so that printing deviation does not occur in the case of deposition printing by the electronic device printing system The present invention provides an electronic device printing system having a printing position correction device capable of increasing printing accuracy.

Features of the present invention for achieving the above object are as follows.

<Feature 1>

An electronic device printing system comprising a plurality of unit printing units for multi-layer printing on a printed object,

Among the plurality of unit printing units, the position error between the base print layer printed by the base print unit and the deposition print layer laminated on the base print layer by the deposition print unit positioned behind the base print unit is visually detected. Position error detection means for; Normal stacking detection means for detecting whether the base printed layer and the deposition printed layer are laminated in order; And a control unit for controlling the position error detecting unit and the normal lamination detecting unit.

 <Feature 2>

Each unit printing unit,

Three rollers such as engraving roller, blanket roller, and impression roller are sequentially contacted so that the printed matter passes between the blanket roller and the impression roller, or two rollers such as engraving roller and impression roller are sequentially contacted. It is an electronic device printing system having a printing position correction device, characterized in that configured to pass between the plate making roller and the impression roller.

<Feature 3>

The position error detecting means,

A first mark printed by the plate-making roller on one side of the printed object when the base printing layer is printed; A second mark printed by the plate-making roller at the same point as the first mark of the printed object when the deposition printed layer is printed; An electronic device printing system having a printing position correction device, characterized in that configured as a printing error detector for detecting the position deviation of the first mark and the second mark and transmits it to the controller.

<Feature 4>

The printing error detector is an electronic device printing system having a printing position correction device, characterized in that the first camera.

<Feature 5>

The camera is an electronic device printing system having a printing position correction device, characterized in that the control is controlled to be photographed only when the first mark and the second mark is detected by the control means.

<Feature 6>

The trigger means may include: a third mark printed by the engraving platen roller when the base printing layer is printed; And a third mark detector configured to generate a trigger signal when the third mark is detected to allow the first camera to be photographed.

<Feature 7>

The trigger mark detector is an electronic device printing system having a printing position correction device, characterized in that the second camera or color sensor.

<Feature 8>

The normal stacking detecting means includes: a fourth mark printed by the trial roller so as to be located on the same line as the first mark of the printed object when the base printing layer is printed; A fifth mark printed by the plate-making roller at the same point as the first mark of the printed object when the deposition printed layer is printed; And an initial position detector for discriminating whether the fourth mark and the fifth mark match and transmitting the same to the control unit.

<Feature 9>

The initial position detector is an electronic device printing system having a printing position correction device, characterized in that any one of a camera or a color sensor.

<Feature 10>

The plate-making roller of the deposition printing unit is controlled by the X-direction calibration motor controlled by the control unit, while the X-direction printing position of the deposition printing layer is automatically controlled by the X-direction calibration motor controlled by the control unit, and is controlled by the Y-direction calibration motor controlled by the control unit. It is an electronic device printing system having a printing position correction device characterized in that the position of the Y-direction of the deposition printing layer is automatically controlled by moving the plate making roller from side to side.

<Feature 11>

The X-direction calibration motor is a servo motor or step motor, and the Y-direction calibration motor is a servo device printing system having a printing position correction device, characterized in that the servo motor.

The present invention has the advantage of improving the print quality and reliability by detecting in real time whether accurate deposition is being performed during deposition printing, and automatically correcting the printing position when incorrect printing is performed.

Advantages and features of the present invention and methods for achieving them will become more apparent with reference to the embodiments described below in conjunction with the accompanying drawings.

3 is a configuration diagram of an electronic device printing system having a printing position correction apparatus according to the present invention, FIG. 4 is a detailed configuration diagram of the printing position correction apparatus according to the present invention, and FIG. 5 is a printing position according to the present invention. 6 is a control flow chart of the correction apparatus, FIG. 6 is a view comparing normal deposition and abnormal deposition during deposition printing, and FIG. 7 is a view for explaining correction for printing error.

The present invention provides a printing position correcting apparatus for automatically performing position correction while simultaneously monitoring in real time so that a base printing layer and a deposition printing layer laminated on the printed material are printed on a fixed position when performing multi-layer printing on a printed object. It relates to an electronic device printing system having.

First, the general configuration of the electronic device printing system will be described with reference to the accompanying drawings.

The electronic device printing system is provided with a plurality of unit printing units for multi-layer printing on one surface of a printed object (for example, film paper or paper).

The unit printing unit includes a base printing unit 10 for printing the base printing layer 2 on one surface of the printed object 1 and the base printing layer 2 on the substrate 1 to be transferred. It consists of a deposition printing unit 20 for printing a deposition printing layer (3). Here, the deposition printing unit is configured with at least one, in the present invention will be described considering only one configured for the sake of brevity.

The base printing unit 10 includes a first plate making roller 12 having a negative printing pattern formed on a circumferential surface thereof; A first blanket roller (not shown) installed in line contact with the first plate making roller to transfer the ink pattern transferred from the first plate making roller to the printed object 1; It is composed of a first impression roller 16 installed in line contact with the first blanket roller to press the printed object 1 passed between the first blanket roller at a suitable pressure to achieve good printing. .

The deposition printing unit 20 may include the first platemaking roller, the first blanket roller, the second platen roller 22 having the same function as the first impression roller, the second blanket roller (not shown), It consists of the 2nd impression roller 26. As shown in FIG. This three roller type is a configuration applied in gravure offset printing.

On the other hand, as shown in Figure 3, the base printing unit 10 may be composed of a first plate making roller 12 and the first impression roller 16, the deposition printing unit 20 is a second plate making roller (22) and the second impression roller (26). This two-roller type is a configuration applied in gravure printing.

The present invention is based on the above-described configuration of an electronic device printing system, and in addition, a position for detecting a positional error of the base print layer 2 and the deposition print layer 3 as shown in FIGS. 3 and 4. Error detecting means (100); Normal stacking detecting means (200) for detecting whether the base printing layer (2) and the deposition printing layer (3) are being laminated in order; It is largely composed of a control unit 300 for controlling the position error detection means 100 and the normal stacking detection means 200.

The position error detecting means 100 is configured as follows.

A first mark (110) printed on one side of the printed object (1) during printing of the base printing layer (2) by a first mark printing unit (not shown) formed on the first plate making roller (12); A second mark printed by a second mark printing unit (not shown) formed in the second plate making roller 22 at the same point as the first mark 110 of the printed object 1 when printing the deposition printed layer 3. Mark 120; And a print error detector 130 that detects a positional deviation between the first mark 110 and the second mark 120 and transmits the detected position deviation to the control unit 300.

Here, the print error detector 130 is installed in the rear of the second plate making roller 22 and photographed so that the first mark 110 and the second mark 120 can be compared and transmitted to the controller 300. It is preferable that the camera (hereinafter referred to as a "first camera").

It is preferable that the first camera is photographed only when necessary to avoid unnecessary operation. Accordingly, the first camera is photographed only when the first mark 110 and the second mark 120 are captured by the control unit 300 and the trigger means 400 to be described later. .

In this case, the trigger means 400 is printed on the printed object 1 by a third mark printing unit (not shown) provided in the first plate making roller 12 when printing the base printing layer (2). Three marks 410; When the third mark 410 is detected, the third mark detector 420 is configured to transmit a detection signal to the controller 300, thereby causing the controller 300 to detect the third mark 410. According to the first camera is operated (shooting), and if the third mark 410 is not detected, the first camera is controlled so as not to operate so that the first camera can be photographed only at the required time point, so that efficient utilization is possible. .

The third mark detector 420 is a second camera which transmits a trigger signal to the first camera and informs the photographing time point of the first camera when the third mark 410 is photographed. The color sensor may be a color sensor. The color sensor functions to discriminate and detect the third mark by color. When the third mark is detected, the color sensor sends a trigger signal to the first camera like the second camera to inform the point of time at which the first camera is photographed. Will play a role.

The normal stack detection means 200 is configured as follows.

A fourth mark 210 printed by the first plate-making roller 12 so as to be located on the same line as the first mark 110 of the to-be-printed body 1 when the base printing layer 2 is printed; A fifth mark 220 printed by the second plate making roller 22 at the same point as the first mark 110 of the printed object 1 when printing the deposition print layer 3; And an initial position detector 230 for discriminating whether the fourth mark 210 and the fifth mark 220 coincide with each other and transmitting the same to the controller 300.

The initial position detector 230 is a third camera which is installed on the second plate making roller 22 and photographed to compare the position of the fourth mark 210 and the fifth mark 220. A color sensor for comparing the position difference between the two marks using the color difference between the four marks 210 and the fifth mark 220 may be applied.

On the other hand, in the present invention, it is preferable that the automatic correction means 500 is further provided to automatically correct the position of the base print layer 2 and the deposition print layer 3 when printing is misaligned.

The automatic correction means 500 is an X-direction calibration motor 510 for correcting the second plate making roller 22 of the deposition printing unit 20 in the X direction (axial direction of the second plate making roller), and the second The plate-making roller 22 is constituted by a Y-direction straightening motor 520 for correcting the Y-rolling roller in the Y-direction (the longitudinal direction of the printed object). The X direction calibration motor 510 and the Y direction calibration motor 520 are both controlled by the controller ().

Here, the X direction calibration motor 510 may be a servo motor or a step motor may be applied, and the Y direction calibration motor 520 may be a servo motor.

Hereinafter, the operation of the system according to the present invention will be described with reference to FIGS.

When the base printing layer 2 is printed on the printed object 1 by the base printing unit 10, the first mark 110, the third mark 410, and the first printing plate 12 are formed by the first plate making roller 12. The four marks 210 are printed together. In this way, the substrate 1 on which the base printing layer 2, the first mark 110, the third mark 410, and the fourth mark 210 are printed is passed through the deposition printing unit 20 to form a second plate. The second mark 120 and the fifth mark 220 are printed by the roller 22.

At this time, if it is detected that the fourth mark 210 and the fifth mark 220 are matched by the third camera or the color sensor of the normal stacking means 200, the control of the control unit 300 if it does not match. The position should be corrected by. If it is matched, it is in normal state and there is no need to correct the position.

In order to easily explain the meaning that the fourth mark 210 and the fifth mark 220 do not coincide with reference to FIG.

That is, in the normal state, a triangle, a quadrangle, and a circular deposition printing layer 3 should be stacked on the circular base and the base printed layer 2 of a triangle to be paired, but a circular base and a base printed layer 2 on a circular base printed layer 2 If the deposition printing layer (3) is laminated abnormally laminated is made because the product defects to prevent the fourth mark 210 and the fifth mark 220 should be matched within an appropriate range.

If abnormal lamination is performed, the position may be corrected by adding or subtracting the rotational speed of the Y-direction calibration motor 520 to correct this. In other words, since the surface of the second impression roller 26 is made of rubber, the to-be-printed object 1 always moves at a constant speed due to its frictional force, but the surface of the second plate making roller 22 is made of metal. As a result, the frictional force is not large in contact with the printed object 1. Therefore, even if the second plate making roller 22 increases or decreases the speed, the position correction can be easily performed while generating a slight slip phenomenon at the tangential part without affecting the movement of the printed object 1.

On the other hand, when the third mark 410 is detected by the second camera or the color sensor, the trigger signal from the second camera is sent to the first camera to inform the point of time when the first camera is photographed. Accordingly, the first camera is to shoot the first mark (110) and the second mark (120), and after the end of the shooting is not taken again until the trigger signal is received again. Therefore, it is efficient by using the first camera only in timely manner.

On the other hand, if the result of contrasting the first mark 110 and the second mark 120 photographed by the first camera is located within the set range, the base print layer 2 and the deposition print layer 3 is normally Since it is printed, there is no need to calibrate it, but if it is out of the set range, the base print layer 2 and the deposition print layer 3 are printed alternately and should be corrected.

At the time of calibration, the second plate making roller 22 is moved in the X direction by the X direction calibration motor 510 and / or the Y direction calibration motor 520, or the rotation speed is decreased in the Y direction.

For example, when a position deviation occurs in which the first mark 110 and the second mark 120 deviate from the normal range as shown in the left figure of FIG. 7, the second mark 120 is shown in the normal range as shown in the right figure. It should be calibrated so as to be located in the dashed line area.

1 is a schematic diagram of a general electronic device printing system

2 is a cross-sectional view showing an example of deposition failure

3 is a block diagram of an electronic device printing system having a printing position correction device according to the present invention;

4 is a detailed configuration diagram of a printing position correction device according to the present invention

5 is a control flowchart of the printing position correction apparatus according to the present invention

6 is a diagram comparing normal deposition and abnormal deposition in deposition printing;

7 is a diagram for explaining correction for a printing error.

<Explanation of symbols for the main parts of the drawings>

1: printed matter 2: base printed layer

3: deposition printing layer 10: base printing unit

20: deposition printing unit 100: position error detection means

110: first mark 120: second mark

200: normal stack detection means 210: fourth mark

220: fifth mark 230: initial position detector

300 control unit 400 trigger means

410: third mark 420: third mark detector

500: Automatic correction means 510: X direction calibration motor

520: Y direction calibration motor

Claims (11)

An electronic device printing system comprising a plurality of unit printing units for multi-layer printing on a printed object, Among the plurality of unit printing units, the position error between the base print layer printed by the base print unit and the deposition print layer laminated on the base print layer by the deposition print unit positioned behind the base print unit is visually detected. Position error detection means for; Normal stacking detection means for detecting whether the base printed layer and the deposition printed layer are laminated in order; And And a control unit for controlling the position error detecting unit and the normal stacking detecting unit. The method of claim 1, wherein each unit printing unit, Three rollers, such as an engraving roller, a blanket roller, and an impression roller, are sequentially contacted with each other so that the printed object passes between the blanket roller and the impression roller, or Or two rollers, such as an engraving roller, an impression roller, and the like so as to be sequentially in line contact with each other so as to pass between the engraving roller and the impression roller. The method of claim 2, wherein the position error detecting means, A first mark printed by the plate-making roller on one side of the printed object when the base printing layer is printed; A second mark printed by the plate-making roller at the same point as the first mark of the printed object when the deposition printed layer is printed; And a printing error detector for detecting a positional deviation between the first mark and the second mark and transmitting the detected position difference to the control unit. The method of claim 3, The printing error detector is an electronic device printing system having a printing position correction device, characterized in that the first camera. The method of claim 4, wherein And the camera is controlled to be photographed only when the first mark and the second mark are detected by the controller and the trigger means. The method of claim 5, wherein the trigger means, A third mark printed by the plate making roller when the base printing layer is printed; And a third mark detector configured to generate a trigger signal to capture the first camera when the third mark is detected. The method of claim 6, And the trigger mark detector is a second camera or a color sensor. The method of claim 2, wherein the normal stack detection means, A fourth mark printed by the trial roller so as to be located on the same line as the first mark of the printed object when the base printing layer is printed; A fifth mark printed by the plate-making roller at the same point as the first mark of the printed object when the deposition printed layer is printed; And an initial position detector for discriminating whether the fourth mark and the fifth mark match and transmitting the same to the control unit. The method of claim 9, The initial position sensor is an electronic device printing system having a printing position correction device, characterized in that any one of a camera or a color sensor. The method of claim 2, The platemaking roller of the deposition printing unit is controlled by the X-direction calibration motor controlled by the control unit while the rotational speed is controlled to automatically control the X-direction printing position of the deposition printing layer. And a position in the Y direction of the deposition printing layer is automatically controlled as the platen roller is moved left and right by a Y direction calibration motor controlled by the control unit. The method of claim 10, And the X direction calibration motor is a servo motor or a step motor, and the Y direction calibration motor is a servo motor.

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