JP2003062972A - Device for positioning printing and method for positioning printing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use reference indications for a work position set in a work under the same conditions until a final printing process. SOLUTION: In the relationship between the work 10 having reference indications (a) and (b) for a work position which enable specifying a position in a uniquely identifiable manner and printing plates 91, 92 and 93, the printing plates 91, 92 and 93 are two-dimensionally movable in the X and Y coordinates of at least an X axis and a Y axis, and further, positions apart, in a specified direction, from the reference indications of an original printing plate manufacturing position, which coincide with the reference indications (a) and (b) for a work position, are set to be floating indications 20a,..., 20f for the 'N'th round of printing. Thus the 'N'th round of printing is performed on the work 10 by making a position obtained by deducting the described distances apart coincide with the reference indications (a) and (b) for the work 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing positioning device for color printing for printing a plurality of color-separated plates by photolithography, printing a printed circuit board for printing an electronic circuit on an insulating plate, and a positioning method thereof. It is about. INDUSTRIAL APPLICABILITY The present invention can be used not only for simple printing but also for a printing machine having a multicolor printing function.

[0002]

2. Description of the Related Art As a printing positioning device of this type, the technique disclosed in Japanese Patent Laid-Open No. 61-287294 can be mentioned as a conventional technique.

This technique is applied to an insulating substrate of an electronic circuit,
The print frame is collated to display an image of at least two work position reference holes provided on the insulating substrate, the coordinates for the work position reference holes are stored, and the image of the electronic circuit is covered on the insulating substrate. Print on the protective layer. Then, the corresponding image of the electronic circuit corresponding to the work position reference hole provided on the insulating substrate is displayed as an image, and the position coordinates printed on the protective layer are stored, and the work provided on the insulating substrate is stored. Compare the position coordinates of the position reference holes with the corresponding position coordinates of the ring of the electronic circuit printed on the protective layer,
According to the detected deviation, the printing frame is corrected and moved in the directions of the axes (X, Y), and the positioning is controlled so as to rotate about the axis (Z).

[0004]

However, the printing positioning device as described above has the plate making position reference holes 101a and 101b provided in the printing plate 101 as shown in FIG. 9 for explaining the conventional printing principle. The printed plate making position reference mark 101aa and the work position reference marks 102a and 102b on the work 102 side are printed on the same surface.

Normally, this printing is performed by first registering the work position reference marks 102a and 102b and then aligning the plate making position reference holes 101a and 101b with the work position reference marks 102a and 102b. By this printing, the plate making position reference marks 101aa and 101bb of the plate making position reference holes 101a and 101b are printed at the same positions as the work position reference marks 102a and 102b.

Work position reference marks 102a, 102b
Even if the plate making position reference marks 101aa and 101bb are said to be at the same position, the printing result may be slightly shifted as shown in FIG. 9A. By registering this printed position, the work position reference mark 10
2a, 102b and plate making position reference marks 101aa, 10
The amount of deviation from 1 bb is calculated, and the positioning table for performing plate making or the plate making is moved to reduce the error during printing.

However, the workpiece position reference mark 102
a, 102b and plate making position reference marks 101aa, 101
bb and bb overlap at the same position, the first time, that is, the first color printing is good, but the second time and thereafter, that is, the second color and thereafter, the work position reference marks 102a and 102b and the plate making position reference mark 101aa, 101bb overlaps and cannot be used as a positioning reference mark.

Therefore, usually, first, the work position reference marks 102a and 102b and the plate making position reference holes 101a and 10b are formed.
1b plate making position reference marks 101aa, 101bb
When it is confirmed that and are overlapped with each other at the same position, a tape or the like is attached to the plate making position reference holes 101a and 101b to stop the printing, and the plate making position reference marks 101aa and 101bb are made by the plate making position reference holes 101a and 101b. Printing is not performed on the position reference marks 102a and 102b.

If a tape or the like is attached so as to prevent the plate-making position reference holes 101a and 101b from being printed, work efficiency will be deteriorated. In addition, a part or part of the eyelet where the tape or the like is attached during the repeated work is stopped. If all of them are peeled off, printing defects may occur.

Therefore, an object of the present invention is to provide a print positioning apparatus and a positioning method thereof that can use a work position reference index set on a work under the same conditions until the final printing.

[0011]

According to a first aspect of the present invention, there is provided a print positioning apparatus, wherein a workpiece is arranged so that at least two XY coordinates in the X-axis and Y-axis directions are relatively movable in relation to a printing plate. A work position reference index provided on the work that can uniquely specify the position with respect to the work,
When performing printing N times on the work, a position which is in a specific direction from the original plate making position reference index of the printing plate making, which matches the work position reference index, is set as an index of the Nth printing plate making. It is provided with a floating index and an arithmetic circuit for matching a corrected position, which is obtained by returning the position information separated in the specific direction from the floating index set as the index for the printing plate making, with the work position reference index.

Therefore, even when the work is overprinted N times, a position distant in a specific direction from the original plate-making position reference index of the printing plate making that matches the work-position reference index is the N-th time. Based on the floating index set as the index for printing plate making, the plate making position reference index for the original printing plate making is calculated, and the work position reference index is made to match the Nth floating index, that is, the Nth plate making position reference index. Since printing is performed, the original plate-making position reference index is not printed N times on the work position reference index provided on the work, and the reference can always be accurately secured. In particular, even if the printing position is deviated, the correction can be made based on the floating index, so that the positioning can be accurately determined.

Here, in relation to the printing plate, a work in which at least XY coordinates in the X-axis and Y-axis directions are arranged so as to be relatively movable in two dimensions means a work position provided on the printing plate and the work. It suffices that the reference index and the reference index can move in a two-dimensional or three-dimensional manner. Of course, it may be rotatable about an axis (Z axis) perpendicular to the X-axis and Y-axis directions.
Therefore, when carrying out the present invention, one or both of the printing plate and the work side may be moved.

The work position reference index provided on the work for uniquely specifying the position of the work may be any work position reference index, and may be a plurality of corners or a plurality of reference holes of the work. , Reference point printing, single or plural linear printing, and the like.

The above-mentioned floating index serves as an index at a position distant from the work position reference index in a specific direction when N times overprinting is performed on the work, and the original Nth index from that index. Calculate the plate making position reference index, and calculate N
By matching the work position reference index with the plate making position reference index for the second time, it is possible to perform overprinting without color misregistration.

According to a second aspect of the present invention, there is provided a printing positioning device in which at least XY in the X-axis and Y-axis directions in relation to the printing plate.
A work in which coordinates are arranged so as to be relatively movable in two dimensions, a work position reference index provided on the work that can uniquely specify a position with respect to the work, and N (N is an integer) with respect to the work When performing the second printing, a position, which matches the work position reference index and is apart from the original plate making position reference index of the printing plate making in a specific direction, is set as an index of the Nth printing plate making, and the Nth printing plate making index is set. The index of is a floating index that does not overlap with other indexes than the Nth time,
An arithmetic circuit for matching the corrected position, which is obtained by returning the position information separated in the specific direction from the floating index set as the index for the printing plate making, with the work position reference index.

Therefore, even when the work is overprinted N times, a position distant in a specific direction from the original plate-making position reference index of the printing plate making that matches the work position reference index is the N-th time. Based on the floating index set as the index for printing plate making, the plate making position reference index for the original printing plate making is calculated, and the work position reference index is made to match the Nth floating index, that is, the Nth plate making position reference index. Since printing is performed, the plate-making position reference index is not printed N times on the work position reference index provided on the work, and the reference can always be accurately maintained. In addition, since the N times of the overprinting are printed at different positions for the Nth overprinting, it is possible to confirm by the floating index whether or not the Nth overprinting has been properly performed. . In particular, even if the printing position is deviated, the correction can be made based on the floating index, so that the positioning can be accurately determined.

Here, in relation to the printing plate making, a work in which at least the XY coordinates in the X-axis and Y-axis directions are arranged so as to be relatively movable in a two-dimensional manner means a work position provided on the printing plate making and the work. It suffices that the reference index and the reference index can move in a two-dimensional or three-dimensional manner. Of course, it may be rotatable about an axis (Z axis) perpendicular to the X-axis and Y-axis directions.
Therefore, when carrying out the present invention, one or both of the printing plate and the work side may be moved.

Further, the work position reference index provided on the work for uniquely specifying the position of the work may be any work position reference index, and may be a plurality of corners or a plurality of reference holes of the work. , Reference point printing, single or plural linear printing, and the like.

The above-mentioned floating index is used as an index at a position away from the work position reference index in a specific direction when performing overprinting on a work N times. Calculate the plate making position reference index, and calculate N
By matching the work position reference index with the plate making position reference index for the second time, it is possible to perform overprinting without color misregistration.

Since the work position reference index of the printing positioning device according to the third aspect is one or a plurality of corners of the work, in the case of a sheet such as a square fixed form paper or an insulating substrate for a printed circuit board, , The work of setting the work position reference index can be saved.

Since the floating index of the print positioning apparatus according to claim 4 is set by displacing on a straight line about the work position reference index, the index is simply obtained by floating in the X-axis or Y-axis direction. The position of the work and the printing plate can be easily confirmed manually.

According to a fifth aspect of the printing positioning method, at least the XY coordinates in the X-axis and Y-axis directions are two-dimensionally relative to each other in the relationship between the work having the work position reference index capable of uniquely specifying the position and the printing plate. A step of setting to be movable, and a position distant in a specific direction from the original plate making position reference index of the printing plate making, which matches the work position reference index,
A step of setting as a floating index as an index of the Nth printing plate making, and a correction position obtained by returning position information separated from the floating index set as the index of the printing plate making in the specific direction to the work position reference index, And a step of printing the work for the Nth time.

Therefore, even when the work is overprinted N times, the N-th time is the position distant from the original plate-making position reference index of the original printing plate making that matches the work-position reference index. Based on the floating index set as the index for printing plate making, the plate making position reference index for the original printing plate making is calculated, and the work position reference index is made to match the Nth floating index, that is, the Nth plate making position reference index. Since printing is performed, the original plate-making position reference index is not printed N times on the work position reference index provided on the work, and the reference can always be accurately secured. In particular, even if the printing position is deviated, the correction can be made based on the floating index, so that the positioning can be accurately determined.

Here, in relation to the printing plate, a work in which at least the XY coordinates in the X-axis and Y-axis directions are two-dimensionally relatively movable is defined as the work position provided on the printing plate and the work. It suffices that the reference index and the reference index can move relative to each other in two dimensions or three dimensions. Of course, it may be rotatable about an axis (Z axis) perpendicular to the X-axis and Y-axis directions. Therefore, when carrying out the present invention, one or both of the printing plate and the work side may be moved.

The work position reference index provided on the work for uniquely specifying the position of the work may be any work position reference index, and may be a plurality of corners or a plurality of reference holes of the work. , Reference point printing, single or plural linear printing, and the like.

The above-mentioned floating index is used as an index at a position away from the work position reference index in a specific direction when performing overprinting N times on a work, and the original Nth index from that index. Calculate the plate making position reference index, and calculate N
By matching the work position reference index with the plate making position reference index for the second time, it is possible to perform overprinting without color misregistration.

According to a sixth aspect of the printing positioning method, at least the XY coordinates in the X-axis and Y-axis directions are two-dimensionally relative to each other in the relationship between the work having the work position reference index whose position can be uniquely specified and the printing plate. A step of setting to be movable, and a position distant in a specific direction from the original plate making position reference index of the printing plate making, which matches the work position reference index,
A step of setting as a floating index as an index of the Nth printing plate making, and a correction position obtained by returning position information separated from the floating index set as the index of the printing plate making in the specific direction to the work position reference index, And a step of printing the work for the Nth time.

Therefore, even when the work is overprinted N times, a position distant from the original plate-making position reference index of the original printing plate, which matches the work-position reference index, in the specific direction is the N-th time. Based on the floating index set as the index for printing plate making, the plate making position reference index for the original printing plate making is calculated, and the work position reference index is made to match the Nth floating index, that is, the Nth plate making position reference index. Since printing is performed, the original plate-making position reference index is not printed N times on the work position reference index provided on the work, and the reference can always be accurately secured. In particular, even if the printing position is deviated, the correction can be made based on the floating index, so that the positioning can be accurately determined.

Here, in relation to the printing plate making, a work in which at least the XY coordinates in the X-axis and Y-axis directions are arranged so as to be relatively movable in two dimensions means the printing plate making and the work position provided on the work. It suffices that the reference index and the reference index can move in a two-dimensional or three-dimensional manner. Of course, it may be rotatable about an axis (Z axis) perpendicular to the X-axis and Y-axis directions.
Therefore, when carrying out the present invention, one or both of the printing plate and the work side may be moved.

Further, the work position reference index provided on the work for uniquely specifying the position of the work may be any work position reference index, and may be a plurality of corners or a plurality of reference holes of the work. , Reference point printing, single or plural linear printing, and the like.

The above-mentioned floating index is used as an index at a position away from the work position reference index in a specific direction when performing overprinting N times on a work, and the original Nth index from that index is used. Calculate the plate making position reference index, and calculate N
By matching the work position reference index with the plate making position reference index for the second time, it is possible to perform overprinting without color misregistration.

Since the floating index of the printing positioning method according to claim 7 is set by displacing on a straight line about the work position reference index, the index is simply obtained by floating in the X-axis or Y-axis direction. The position of the work and the printing plate can be easily confirmed manually.

[0034]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a printing positioning apparatus and a positioning method thereof according to the present invention will be described below. Throughout the respective embodiments, the same or corresponding members or portions are designated by the same or corresponding reference numerals.

First Embodiment FIG. 1 is an overall configuration diagram showing a printing positioning device according to a first embodiment of the present invention. Throughout the respective embodiments, the same or corresponding members or portions are designated by the same or corresponding reference numerals.

In the figure, a conveying path 1 is provided with a work 10 (1
0a, 10b: Hereinafter, when the expression is common to the works that do not mean the specific works 10a and 10b, simply "work 1"
0) is conveyed in a specific direction (arrow direction), and movement of the work 10 in the front-rear direction and the left-right direction (X-axis and Y-axis direction) is restricted at the position detection and the printing position.
The position is the mechanical origin. In the work 10,
Work position reference indices a and b are formed.

The main controller 30 comprises a personal computer, and an image pickup device 41 consisting of two CCD cameras.
The image is input from 42. Although two-color printing is described in the present embodiment, three or more colors can be printed. Further, although the image pickup devices 41 and 42 each including two CCD cameras corresponding to two colors are used, when the present invention is implemented, the image pickup devices including the CCD cameras are set corresponding to each color. Alternatively, conversely, a common image input may be obtained with one image pickup device. That is, the two printing plates 91 and 92 and the imaging devices 41 and 42 may correspond to each other in a one-to-one manner, but may not correspond to each other. Even if there are a plurality of printing plates, the number of image pickup devices may be one.

Two printing plates 91, 92 of the present embodiment
Print control unit 60 according to a command from main controller 30.
Alternatively, the print control unit 70 uses the X-axis adjusting mechanism 60x and the Y-axis adjusting mechanism 60y or the X-axis adjusting mechanism 70x and the Y-axis adjusting mechanism 70y to perform two-dimensional positioning.

The printing plate 91 has floating indicators 20a, 20
b is provided. These floating indexes 20a and 20b are
Conventional plate-making position reference holes 101a and 101b shown in FIG. 9 that match the work position reference indexes a and b provided on the work 10.
Is provided at a position separated by a predetermined distance (X1, Y1). Therefore, the positions of the conventional plate making position reference holes 101a and 101b of the printing plate 91 (positions that match the original work position reference indices a and b of the printing plate 91) are set at a predetermined distance (-X1) from the floating indicators 20a and 20b. , -Y1) is changed, and when the position coincides with the positions of the work position reference indices a and b provided on the work 10, printing is possible without color misregistration.

That is, the floating index 20 of this printing plate 91
a and 20b are conventional plate making position reference holes 101a and 101b.
The position of b, in other words, the conventional plate making position reference hole 101 that matches the work position reference indexes a and b provided on the work 10.
It is provided at a position away from a and 101b by a predetermined distance (X1, Y1).

The printing plate 92 also has a floating index 20c,
20d is provided. This floating index 20c, 20d
As for the conventional plate-making position reference hole 10 shown in FIG. 9, which matches the work position reference indexes a and b provided on the work 10.
It is provided at a position separated by a predetermined distance (X2, Y2) from 1a and 101b. Therefore, the positions of the conventional plate making position reference holes 101a and 101b of the printing plate making 92 are changed by a predetermined distance (-X2, -Y2) from the floating indexes 20c and 20d, and the positions are provided on the work 10. When the positions of the position reference indexes a and b are matched, the position is a position where printing without color misregistration is possible.

That is, the floating index 20 of this printing plate 92
c and 20d are conventional plate making position reference holes 101a and 101d.
The position of b, in other words, the conventional plate making position reference hole 101 that matches the work position reference indexes a and b provided on the work 10.
It is provided at a position away from a and 101b by a predetermined distance (X2, Y2). However, the predetermined distance (X1,
Y1) and the distance (X2, Y2) do not match, but in the case of implementing the present invention, in particular, when it is possible to set for each color,
The distance (X1, Y1) and the distance (X2, Y2) may be matched.

The monitors 51 and 52 indicate the image positions obtained by the image pickup devices 41 and 42, and are used for detecting position calculation and confirmation. The image of the image pickup device 41 is the printing plate 9 corresponding to the work position reference indices a and b provided on the work 10a.
Used for 1 position setting. Of course, if the work position reference indices a and b are not detected, a detailed description is omitted, but the printing process is omitted. When the positions of the work position reference indexes a and b provided on the work 10a are two-dimensionally detected by the main control device 30, the printing plate 91 is positioned for printing.

Floating indexes 20a, 20b of the printing plate 91
Is the work 10 at a position separated by a predetermined distance (-X1, -Y1).
The print control unit 6 receives a command from the main controller 30 so as to match the work position reference indices a and b provided on a.
0 adjusts the X-axis adjusting mechanism 60x and the Y-axis adjusting mechanism 60y. When they match, printing is performed using the printing plate 91, and at the same time, the floating indexes 20a and 20b are separated from the workpiece position reference indexes a and b provided on the workpiece 10a by a predetermined distance (X1,
Y1) The floating indicators 20a, 2 of the printing plate 91 are placed at a distance from each other.
It is printed as print marks 20aa and 20bb of 0b. Here, especially when the printing position is deviated, the distance (-X1, -Y1) may be corrected based on the floating indexes 20a and 20b, so that the subsequent printing positioning can be accurately set.

The work 10b on which the work position reference indexes a and b and the print marks 20aa and 20bb are printed is again set to a predetermined mechanical origin, and the work position reference indexes a and b and the print marks provided on the work 10b are set. 20aa,
20 bb is detected again by the image pickup device 42, and the image is used for setting the position of the printing plate 92. Of course, the workpiece position reference indices a and b and the print marks 20aa and 20
If bb is not accurately detected, the next printing step is omitted. A workpiece position reference index a provided on the workpiece 10a,
When the position of b is two-dimensionally detected by the main controller 30, the printing plate making 92 is positioned to perform printing.

A command from the main controller 30 is received at a position where the floating indexes 20c and 20d of the printing plate 92 are separated from the workpiece position reference indexes a and b provided on the workpiece 10d by a predetermined distance (-X2, -Y2). The print control unit 70 is the X-axis adjusting mechanism 70x.
Also, the Y-axis adjusting mechanism 70y is adjusted to match the position of the work position reference indices a and b provided on the work 10d with a predetermined distance (-X2, -Y2) from the floating indices 20c and 20d of the printing plate 92. . When they match, printing is performed using the printing plate 92, and the floating indexes 20c and 20d are set to the work 10d.
A predetermined distance (X
2, Y2) Floating indicator 20 of printing plate 92 at a distance
The print marks 20cc and 20dd of c and 20d are printed. Here, in particular, when the printing position is deviated, the distance (-X2, -Y2) may be corrected based on the floating indexes 20c and 20d, so that the subsequent printing positioning can be accurately set.

As described above, the print marks 20aa, 20b of the floating indexes 20a, 20b of the printing plate 91 are overlapped with the positions of the work position reference indexes a, b provided on the work 10b.
b, since the print marks 20cc and 20dd of the floating indexes 20c and 20d of the printing plate 92 are not printed, the work position reference indexes a and b provided on the work 10b do not change, and accurate printing can be performed repeatedly. It will be possible. In particular,
If the printing position is misaligned, the floating indexes 20a, 20
Based on b, 20c, 20d, distance (-X1, -Y1), distance (-X
Since the correction of (2, -Y2) only has to be performed, the positioning of printing after that can be set accurately.

Next, the control of the print positioning apparatus according to the first embodiment will be described.

FIG. 2 is a flow chart of a program executed by the print control units 60 and 70 of the print positioning apparatus according to the first embodiment of the present invention, and the print control unit 60 and the print control unit 70 independently control. .

This program process is started by turning on a control switch (not shown). First, initialization is performed in step S1. In step S2, the floating index 20 of the printing plate 91
Input the floating position X1 of the X axis and the floating position Y1 of the Y axis that specify a and 20b. In step S3, it is confirmed by the operation of the limit switch whether or not the work 10a is at the designated mechanical origin position, and the process waits until the work 10a moves to the designated mechanical origin position. When the workpiece 10a reaches the designated mechanical origin position, in step S4 the image pickup device 41
The positions of the work position reference indexes a and b provided on the work 10a are detected from the image of FIG. Then, the printing plate 91 moved onto the work 10a set to the mechanical origin in steps S5 and S6 is the floating index 2 of the printing plate 91.
In order to match 0a, 20b with a position separated by a predetermined distance (-X1, -Y1) from the work position reference indices a, b provided on the work 10a, the print control unit 60 that receives a command from the main controller 30 X-axis adjusting mechanism 60x and Y-axis adjusting mechanism 60y
Adjust. When they match, the printing plate 9 is made in step S7.
1 is used to perform printing on the work 10a, and at the same time, the floating index 20a, 20b is placed at a position a predetermined distance (X1, Y1) away from the work position reference index a, b provided on the work 10a. The print marks 20aa and 20bb of the floating indexes 20a and 20b are printed. Then, when the work 10a is changed in step S9, the routine from step S3 is repeatedly executed.

If the printing position is deviated, the distance (-X1, -Y1) may be corrected based on the floating indexes 20a and 20b, so that the subsequent printing positioning can be accurately set.

Similarly, the same program control is performed on the printing plate 92 side. The illustration of the flow chart is omitted,
For explanation only.

That is, it is initialized in step S1. In step S2, an X-axis floating position X2 and a Y-axis floating position Y2 for designating the floating indexes 20c and 20d of the printing plate 92 are input. In step S3, whether or not the work 10b is at the designated mechanical origin position is confirmed by the operation of the limit switch, and waits for the work 10b to move to the designated mechanical origin position. When the work 10b reaches the designated mechanical origin position, the positions of the work position reference indexes a and b provided on the work 10b are detected from the image of the image pickup device 42 in step S4. The printing plate 91 moved onto the work 10b set to the mechanical origin in steps S5 and S6 is moved from the work position reference indices a and b provided on the work 10b to the floating indices 20c and 20d of the printing plate 91. The print control unit 70, which has received a command from the main controller 30, adjusts the X-axis adjusting mechanism 70x and the Y-axis adjusting mechanism 70y so as to match the positions separated by a predetermined distance (-X2, -Y2). When they match, printing is performed on the work 10b by using the printing plate 92 in step S7, and at the same time, the floating indexes 20c and 2 are printed.
0d is a work position reference index a, b provided on the work 10b.
At a position (X2, Y2) away from the printing plate 92
Print marks 20cc, 20 of floating indicators 20c, 20d of
dd is printed.

When the work 10b is changed in step S9, the routine from step S3 is repeatedly executed.

When the printing position is deviated, the distance (-X2, -Y) is determined based on the floating indexes 20c and 20d as in the former case.
Since the correction in 2) only needs to be performed, the printing positioning after printing can be set accurately.

In the present embodiment, main controller 30
Controls the transportation of the works 10a and 10b.

In the present embodiment, the work 1
Although it is premised that the work position reference indexes a and b are attached to 0a and 10b, in the case of implementing the present invention,
Especially when using standard size paper, it is preferable to print the work position reference indices a and b in the first printing. The use of the workpieces 10a and 10b provided with the workpiece position reference indexes a and b as in the present embodiment is suitable for a printed circuit board or the like. In any case, the work position reference indices a and b may be applied when the first color is printed or before.

Further, in relation to the printing plates 91 and 92, the work 10 in which at least the XY coordinates in the X-axis and Y-axis directions are two-dimensionally movable relative to each other is the printing plate 9.
, 20d provided on the workpieces 1 and 92 and the workpiece position reference indicators a and b provided on the workpiece 10 can be relatively moved in a two-dimensional or three-dimensional manner. Of course,
It may be rotatable about an axis (Z axis) perpendicular to the X-axis and Y-axis directions. That is, when the present invention is carried out, it is sufficient that one or both of the printing plate making 91, 92 and the work 10 side can be moved.

Second Embodiment FIG. 3 is an overall configuration diagram showing a printing positioning device according to a second embodiment of the present invention.

In the figure, the transport path 1 is provided with a work 10 (1
(0a, 10b, 10c) in a specific direction (arrow direction), the movement of the front, rear, left and right (X-axis and Y-axis directions) is restricted at the position detection and printing position of the work 10. The mechanical origin is set at that position. Workpiece position reference indices a and b are formed on the workpiece 10.

The main controller 30 is composed of a personal computer, and inputs an image from an image pickup device 40 composed of one CCD camera. Although three-color printing is described in this embodiment, two or more colors can be printed when the present invention is carried out. In the present embodiment, the number of image pickup devices 40 including CCD cameras can be smaller than that in the first embodiment.

Further, three printing plates 91, 92, 93
Print control unit 6 according to a command from main controller 30.
0, 70, 80 are X-axis adjusting mechanism 60x and Y-axis adjusting mechanism 60y or X-axis adjusting mechanism 70x and Y-axis adjusting mechanism 70.
Positioning is performed using the y, X-axis adjusting mechanism 80x and the Y-axis adjusting mechanism 80y.

The printing plate 91 has floating indicators 20a and 20b.
However, the printing plate 92 is provided with the floating indexes 20c and 20d, and the printing plate 93 is provided with the floating indexes 20e and 20f. The floating indexes 20a, ...
A predetermined distance (X
1, Y1, X2, Y2, X3, Y3) are provided apart from each other. Therefore, the conventional plate making position reference hole 101 of FIG.
The positions of a and 101b are floating indices 20a, ..., 20f.
From the specified distance (-X1, -Y1, -X2, -Y2, -X3, -Y3)
The position changed by only matches the positions of the work position reference indexes a and b provided on the work 10.

That is, the floating index 20 of this printing plate 91
a and 20b are conventional plate making position reference holes 101a and 101b.
The position of b, in other words, the conventional plate making position reference hole 101 that matches the work position reference indexes a and b provided on the work 10.
It is provided at a position away from a and 101b by a predetermined distance (X1, Y1). In addition, the floating index 20 of the printing plate 92
c and 20d are conventional plate making position reference holes 101a and 101d.
The position of b, in other words, the conventional plate making position reference hole 101 that matches the work position reference indexes a and b provided on the work 10.
It is provided at a position away from a and 101b by a predetermined distance (X2, Y2). And the floating index 2 of this printing plate 93
0e and 20f are conventional plate making position reference holes 101a and 10f.
1b position, in other words, the conventional plate making position reference hole 10 that matches the work position reference indexes a and b provided on the work 10.
It is provided at a position apart from the terminals 1a and 101b by a predetermined distance (X3, Y3).

Therefore, the floating indices 20a, ..., 20
Predetermined distance from the position of f (-X1, -Y1, -X2, -Y2, -X
The positions changed by (3, -Y3) are the positions of the conventional plate making position reference holes 101a and 101b that match the positions of the work position reference indexes a and b provided on the work 10.

The monitor 50 shows an image of the image pickup device 40 and is for confirmation. Further, the image of the image pickup device 40 is used for detecting the work position reference indexes a and b provided on the work 10, and the positions of the work position reference indexes a and b provided on the work 10 b are two-dimensionally determined by the main controller 30. Detected.

Work 10 set at a predetermined mechanical origin
The printing plate 91 that has moved to the position of b is mainly located at a position separated by a predetermined distance (-X1, -Y1) from the work position reference indices a and b provided on the work 10b with the floating indices 20a and 20b of the printing plate 91. Print control unit 60 that receives a command from the control device 30
Adjusts the X-axis adjusting mechanism 60x and the Y-axis adjusting mechanism 60y to match. When they match, printing is performed on the work 10b using the printing plate 91, and at the same time, the floating index 20a,
20b is a work position reference index a provided on the work 10b,
The printing plate 9 is placed at a predetermined distance (X1, Y1) from b.
Print marks 20aa, 2 of floating indicators 20a, 20b of 1
It is printed as 0bb.

Then, the printing plate 92 moved onto the work 10b set at the predetermined mechanical origin is the printing plate 92.
When the print control unit 70 receives a command from the main controller 30, the floating indexes 20c and 20d of the print controller 70 are separated from the workpiece position reference indexes a and b provided on the workpiece 10b by a predetermined distance (-X2, -Y2). The X-axis adjusting mechanism 70x and the Y-axis adjusting mechanism 70y are adjusted and matched. When they match, printing is performed on the work 10b using the printing plate 92, and at the same time, the floating index 2
0c and 20d are located at positions separated by a predetermined distance (X2, Y2) from the work position reference indexes a and b provided on the work 10b, and the print marks 20c of the floating indexes 20c and 20d of the printing plate making 92.
printed as c, 20 dd.

Next, the printing plate 93 moved onto the work 10b set at the predetermined mechanical origin is the printing plate 93.
When the print control unit 80 receives a command from the main controller 30, the floating indexes 20e and 20f are separated from the workpiece position reference indexes a and b provided on the workpiece 10b by a predetermined distance (-X3, -Y3). The X-axis adjusting mechanism 80x and the Y-axis adjusting mechanism 80y are adjusted to match. When they match, the work 10b is printed using the printing plate 93, and at the same time, the floating index 2
The print marks 20e of the floating indexes 20e and 20f of the printing plate 93 are located at positions where 0e and 20f are separated by a predetermined distance (X3, Y3) from the workpiece position reference indexes a and b provided on the workpiece 10b.
It is printed as e, 20ff.

The printing plates 91, 92, 93 are printed using the positions of the workpiece position reference indices a, b provided on the workpiece 10b, and the floating indices 20 of the printing plates 91, 92, 93 are printed.
.., 20f print marks 20aa, ..., 20f
The work 10b on which f is printed is conveyed to the next step.

As described above, the print marks 20aa and 20bb of the floating indexes 20a and 20b of the printing plate 91 and the floating indexes 20c and 20d of the printing plate 92 are printed at the positions of the workpiece position reference indexes a and b provided on the workpiece 10b. Mark 20c
c, 20dd, floating indicators 20e, 20f of the printing plate 93
Since the print marks 20ee and 20ff are not overprinted, the work position reference indexes a and b provided on the work 10b do not change, and accurate printing can be performed.

Next, the control of the print positioning apparatus according to the second embodiment will be described.

FIG. 4 is a flow chart of a program executed by the main controller of the print positioning apparatus according to the second embodiment of the present invention, and FIG. 5 is a main controller of the print positioning apparatus according to the second embodiment of the present invention. 4 is a flowchart of an N setting routine used in the program of FIG.

This program process is started by turning on a control switch (not shown).

It is initialized in step S21. In step S22, the "N setting routine" is called. When the "N setting routine" is called, step S41 shown in FIG.
Then, the routine process of step S47 is started.

First, in step S41, a specific key operation,
For example, it is determined whether or not the operation has been introduced into the floating position setting mode by operating the function key "F1", and if not, this routine is exited. Step S4
When it is determined in 1 that the floating position setting mode has been introduced by a specific key operation, the register N for setting the floating position number is cleared in step S42. Step S43
The register N for setting the floating position number is incremented by "+1". X-axis floating position XN corresponding to the register N for setting the floating position number in step S44, step S4
In step 5, the Y-axis floating position YN corresponding to the register N for setting the floating position number is input. Then, in step S46, it is input whether the setting of the register N for setting the floating position number is completed or continued. For example, if "Enter" is input, the register N for setting the floating position number in step S43.
The routine from step S43 for incrementing by "+1" is repeatedly executed. In step S46, "En
Without inputting "ter", in step S47, for example, "E"
nd "is input, steps S41 to S4
Exit the routine of 7.

As described above, the "N setting routine" sets the floating position number in the register N, and the floating position number corresponding to the register N is the X-axis floating position XN and the Y-axis floating position YN.
Is a routine for setting.

When the process of the "N setting routine" in step S22 is completed, the floating position number set in the register N indicating the number of prints is read in step S23. In step S24, whether or not the work 10b is at the designated mechanical origin position is confirmed by the operation of the limit switch.
Wait for 0b to move to the specified mechanical origin position.
When the workpiece 10b reaches the designated mechanical origin position, "+1" is set in the register N in step S25. In step S26, the image of the image pickup device 40 is used to change the work
The positions of the workpiece position reference indices a and b provided on b are detected. Then, the printing plate 91 that has moved onto the work 10b set to the mechanical origin in steps S27 and S28 has the floating indexes 20a and 20b of the printing plate 91 from the work position reference indexes a and b provided on the work 10b. The print control unit 60, which has received a command from the main controller 30, adjusts the X-axis adjusting mechanism 60x and the Y-axis adjusting mechanism 60y so as to match the positions separated by a predetermined distance (-X1, -Y1). When they match, printing is performed on the work 10b using the printing plate 91 in step S29, and at the same time, a predetermined distance (X1, Y1) from the work position reference indices a and b provided on the work 10b.
The floating indicators 20a and 20b of the printing plate 91 are located at distant positions.
The print marks 20aa and 20bb are printed.

In step S30, the register N for setting the floating position number is incremented by "+1", and step S3 is performed.
In step 1, it is determined whether the floating position number set in the register N read in step S23 has ended. When not finished,
The routine from step S26 to step S31 is repeated. That is, next, assuming that the printing plate 92 is used with the register N = 2, the distance (-) in which the floating indexes 20a and 20b of the printing plate 91 are matched with the workpiece position reference indexes a and b provided on the workpiece 10b in step S30. Get ready to read X2, -Y2). Then, in step S31, it is determined whether or not the floating position number set in the register N read in step S23 is completed, and the printing plate making 92 is used in the register N = 2, and the printing plate making 93 is used in the register N = 3. to go into. Until the register N = 4 in step S30, step S2
The routine from 6 to step S31 is repeatedly executed. When the register N = 4 in step S30, the work 1
Complete all printing for 0b.

At this time, if the printing position is deviated, the floating indexes 20a, 20b, 20c, 20d, 20
Based on e and 20f, distances (-X1, -Y1), (-X2, -Y2),
Since it is sufficient to correct (-X3, -Y3), the subsequent printing positioning can be set accurately.

Third Embodiment FIG. 6 is an overall configuration diagram showing a printing positioning device according to a third embodiment of the present invention. Throughout the respective embodiments, the same or corresponding members or portions are designated by the same or corresponding reference numerals.

In the figure, the conveying path 1 is provided with a work 10 (1
0a, ..., 10c) in a specific direction (arrow direction), the movement of the work 10 is restricted at the position detection and printing positions of the workpiece 10 in the front-rear direction (X-axis and Y-axis direction), and the machine is moved at that position. It is designed to be installed at the original point. Workpiece position reference indices a and b are formed on the workpiece 10.

The main controller 30 is composed of a personal computer, and inputs an image from an image pickup device 40 composed of one CCD camera. Although three-color printing will be described in this embodiment, two or more colors can be printed. In addition, the three printing plates 91, 92, 93 are provided in the main controller 3
In response to a command from 0, the print control unit 60 causes the X-axis adjustment mechanism 6
0x and Y-axis adjusting mechanism 60y, print control unit 70 includes X-axis adjusting mechanism 70x and Y-axis adjusting mechanism 70y, print control unit 80.
Position using the X-axis adjusting mechanism 80x and the Y-axis adjusting mechanism 80y.

The printing plate 91 has floating indicators 20a, 20
b is provided. These floating indexes 20a and 20b are
It is provided at a position apart from the work position reference indexes a and b provided on the work 10 by a predetermined distance (X1, Y1). Therefore, when viewed from the positions of the conventional plate making position reference holes 101a and 101b, the positions changed by a predetermined distance (-X1, -Y1) match the positions of the work position reference indexes a and b provided on the work 10. It will be.

The printing plate 92 also has a floating index 20.
c and 20d are provided. This floating index 20c, 2
0d is a work position reference index a, b provided on the work 10.
Is provided at a position away from the predetermined distance (X2, Y2). Therefore, the position changed by a predetermined distance (-X2, -Y2) from the positions of the floating indexes 20c and 20d is the work 10.
The positions of the conventional plate-making position reference holes 101a and 101b coincide with the positions of the workpiece position reference indexes a and b provided in the above.

The floating index 20 is added to the printing plate 93.
e, 20f are provided. This floating index 20e, 2
0f is a work position reference index a, b provided on the work 10.
It is provided at a position away from the predetermined distance (X3, Y3). Therefore, the position changed by a predetermined distance (-X3, -Y3) from the position of the floating indexes 20e, 20f is the work 10.
The positions of the conventional plate-making position reference holes 101a and 101b coincide with the positions of the workpiece position reference indexes a and b provided in the above.

The monitor 50 is for confirming the image position of the image pickup device 40. The image of the image pickup device 40 is used to detect the work position reference indices a and b provided on the work 10. When the positions of the work position reference indexes a and b provided on the work 10a are two-dimensionally detected by the main controller 30, the work is conveyed to the next step.

The work 10b moved under the printing plate 91
Is set at a predetermined mechanical origin, the floating indexes 20a, 20b of the printing plate 91 are located at a predetermined distance (-X1, -Y1) from the work position reference indexes a, b provided on the work 10b. In response to a command from the main controller 30, the print control unit 60 adjusts the X-axis adjusting mechanism 60x and the Y-axis adjusting mechanism 60y to match them. When they match, printing is performed using the printing plate 91, and at the same time, the floating indexes 20a and 20b are printed at positions separated by a predetermined distance (X1, Y1) from the workpiece position reference indexes a and b provided on the workpiece 10b. It is printed as print marks 20aa and 20bb of the floating indexes 20a and 20b of the plate making 91.

Next, the printing plate 92 is changed to the work 10.
The printing plate 92 moved to the upper side of b is mainly located at a position separated by a predetermined distance (-X2, -Y2) from the work position reference indices a and b provided on the work 10b with the floating indices 20c and 20d of the printing plate 92. The print control unit 70 receives a command from the control device 30.
Adjusts the X-axis adjusting mechanism 70x and the Y-axis adjusting mechanism 70y to match. When they match, printing is performed using the printing plate 92, and at the same time, the floating indexes 20c and 20d are printed at positions separated by a predetermined distance (X2, Y2) from the work position reference indexes a and b provided on the work 10d. Floating index 2 of plate making 92
The print marks 20cc and 20dd of 0c and 20d are printed.

Next, the printing plate 93 moved onto the work 10b has a predetermined distance (-X3, -Y3) from the work position reference indices a, b provided on the work 10b with the floating indices 20e, 20f of the printing plate 93. ) Upon receiving a command from the main controller 30, the print control unit 80 adjusts the X-axis adjusting mechanism 80x and the Y-axis adjusting mechanism 80y to match the separated positions. When they match, printing is performed on the work 10b using the printing plate 93, and at the same time, the floating indexes 20e and 20f are separated from the work position reference indexes a and b provided on the work 10b by a predetermined distance (X3,
Y3) Floating indicators 20e, 2 of the printing plate 93 are placed at a distance.
It is printed as print marks 20ee and 20ff of 0f.

In this way, the print marks 20aa, 20b of the floating indexes 20a, 20b of the printing plate 91 are overlapped with the positions of the work position reference indexes a, b provided on the work 10b.
b, the printing marks 20cc and 20dd of the floating indexes 20c and 20d of the printing plate 92, and the floating indexes 20 of the printing plate 93.
Since the print marks 20ee and 20ff of e and 20f are not printed, the work position reference indices a and b provided on the work 10e do not change and accurate printing is possible.

By the way, in each of the above-described embodiments, the floating indexes 20a, ..., 20f have been described as taking any one of the X-axis and / or the Y-axis, but the embodiment of the present invention shown in FIG. As shown in (a) of the explanatory view for explaining the floating index of the print positioning apparatus according to the present invention, when the X axis or the Y axis is specified and the print marks 20aa, ... Can be visually confirmed and the printing process can be easily controlled. Further, as shown in (b), when the print marks 20aa, ..., 20cc are specified on the X axis and the Y axis and the floating indexes 20a, ..., 20cc are set at right angles, the status of the print displacement can be visually recognized. The print process can be easily managed. And (c)
, 20dd by specifying the print marks 20aa, ..., 20dd on the X and Y axes, and
Even if is set to a right angle position, the status of the printing displacement can be visually confirmed, and the printing process can be easily managed.

In each of the above embodiments, the printing plate 9
Although the position adjustment of 1, 92, 93 has been described, in the case of carrying out the present invention, at least the XY coordinates in the X-axis and Y-axis directions are two-dimensionally relative to each other in the relationship with the printing plate 91, 92, 93. The movably arranged work 10 only needs to be capable of two-dimensional or three-dimensional relative movement between the printing plates 91, 92, 93 and the work position reference indices a, b provided on the work 10. Of course, the axis perpendicular to the X-axis and Y-axis directions (Z-axis)
It may be rotatable with respect to. That is, when the present invention is carried out, it is sufficient that one or both of the printing plates 91, 92, 93 or the work 10 side can be moved.

In each of the above embodiments, the case of printing in a plurality of colors has been described. However, when the present invention is implemented,
Any device that uses a printing technique such as a printed circuit board can be applied.

Further, in each of the above embodiments, the work 10 is
With respect to the work position reference indices a and b provided on the work 10 that can uniquely specify the position, the circle mark printing has been described as an example, but in the case of implementing the present invention, the position of the work 10 is specified. Any index can be used as long as it can be used, and it can be used as an index such as plural corners or plural reference holes of the work 10, reference point printing, single or plural linear printing.

Furthermore, in each of the above-described embodiments, the printing position by the printing plate 91, 92, 93 and the image pickup device 40, 4 are used.
Embodiments in which the imaging positions of Nos. 1 and 42 are detected at the same position and those at different positions are shown. However, when the present invention is carried out, it is clear that the error is reduced when the printing position by the printing plate 91, 92, 93 and the imaging position of the imaging devices 40, 41, 42 are the same.

As described in detail in each of the above-described embodiments, the printing positioning device for carrying out the present invention is the printing plate 9
In relation to the plate-making position reference indexes (101a, 101b of the conventional example) provided in Nos. 1, 92, 93, at least the XY coordinates in the X-axis and Y-axis directions are arranged so as to be relatively movable two-dimensionally. , A work position reference index a, b provided on the work 10 that can uniquely specify a position with respect to the work 10, and a work position reference index a, b when performing printing N times on the work 10. Floating indexes 20a, ..., 20f set as indexes matching the N-th plate-making position reference index (101a, 101b of the conventional example) at a position away from b in a specific direction.

Accordingly, even when the work 10 is overprinted N times, the floating indexes 20a, ... At positions apart from the workpiece position reference indexes a, b in a specific direction.
., 20f, the Nth plate making position reference index (1 of the conventional example)
01a, 101b), the plate making position reference index (101a, 101 of the conventional example) N times on the work position reference index a, b provided on the work 10.
Since b) is not printed, the reference can always be accurately maintained. At this time, the floating indexes 20a, ...
., 20f are floating indices 20a = 20c = 20e and 20
When b = 20d = 20f, the work position reference indices a and b are set.
The same position apart from in a specific direction is a floating index.

At this time, if the printing position is deviated, the floating indexes 20a, 20b, 20c, 20d, 20
Based on e and 20f, distances (-X1, -Y1), (-X2, -Y2),
Since it is sufficient to correct (-X3, -Y3), the subsequent printing positioning can be set accurately.

Further, the N times of overprinting printing on the work 10 can be not only photographic printing such as gravure printing but also printing of conductors and insulators such as a printed circuit board.

The printing positioning device for carrying out the present invention is at least in the X-axis and Y-axis directions in relation to the plate making position reference indexes (101a, 101b of the conventional example) provided on the printing plate making 91, 92, 93. With respect to the work 10, and the work position reference indices a and b provided on the work 10 that can uniquely specify the position with respect to the work 10. N
When printing is performed once, a position distant from the work position reference indices a and b in a specific direction is set as an index that matches the Nth plate-making position reference index (101a and 101b in the conventional example), and the N The floating index 20a, in which the index of the second time does not overlap with the index of other than the Nth time, ...
20f.

Therefore, even when the work 10 is overprinted N times, the work position reference index a,
The floating index 20a at a position away from b in a specific direction,
20f, the Nth plate making position reference index (101 of the conventional example).
a, 101b), so that the work 1
The Nth plate-making position reference index (101a, 101b of the conventional example) is not printed on the work position reference index a, b provided at 0, and the reference can always be secured accurately. Further, for the Nth overprint, the Nth floating index is set as the Nth platemaking position reference index (10 of the conventional example).
1a, 101b) will be printed, so it is necessary to check whether or not N times of overprinting has been properly performed.
・ You can also check with 20f. At this time, the floating indexes 20a, ..., 20f at positions apart from the work position reference indexes a, b in the specific direction are floating indexes 20a ≠ 20c ≠.
By setting 20e and 20b ≠ 20d ≠ 20f, the positions distant from the work position reference indices a and b in the specific direction are non-overlapping floating indices.

At this time, if the printing position is deviated, the floating indices 20a, 20b, 20c, 20d, 20
Based on e and 20f, distances (-X1, -Y1), (-X2, -Y2),
Since it is sufficient to correct (-X3, -Y3), the subsequent printing positioning can be set accurately.

Further, the N times of overprinting printing on the work 10 can be performed not only by photographic printing such as gravure printing but also printing of conductors and insulators such as a printed circuit board.

In the above embodiment, the printing plates 91, 92, 93 are movably arranged in the X-axis and Y-axis directions and the Z-axis direction. However, when the present invention is carried out, The work 10 side can also be moved.

Fourth Embodiment FIG. 8 is an overall configuration diagram showing a printing positioning device according to a fourth embodiment of the present invention. Throughout the respective embodiments, the same or corresponding members or portions are designated by the same or corresponding reference numerals.

In the figure, the conveying path 1 is defined by the work 10a,
Reference numeral 10b is a path which is attached to the frame bodies 110 and 120 and reciprocates in the arrow direction. The printing plate 90 is a frame 110
At the printing position of the work 10a attached to the
Movement is constrained in the (X-axis and Y-axis directions), it is movable only in the Z-axis direction, and is installed at the mechanical origin at that position. Work 10 of the frame 110, 120
Work position reference indices a and b are formed on a and 10b. The X-axis adjusting mechanism 6 is attached to each of the frames 110 and 120.
0x and Y-axis adjusting mechanism 60y and Z-axis adjusting mechanism 60z,
An X-axis adjusting mechanism 70x, a Y-axis adjusting mechanism 70y, and a Z-axis adjusting mechanism 60z are provided, and are movable in the X-axis, Y-axis, and Z-axis directions.

The work 10 attached to the frame body 120
An image pickup device 4 for picking up images of the workpiece position reference indices a and b is shown in b.
0A and 40B are provided. Imagers 40A, 40B
Are fixed respectively, and the workpiece position reference index a at the imaging position
And the work position reference index b can be detected independently.

The images of the image pickup device 40A and the image pickup device 40B may be set so that both can judge the relative position of the work position reference indices a and b of the works 10a and 10b. The positions of the respective work position reference indices a and b of 10b may be set so as to be determined. That is, even if the image of each of the work position reference index a and the work position reference index b is taken by using the images of the image pickup device 40A and the image pickup device 40B alone, the positioning may be specified within the imaged range.

The main controller 30 is composed of a personal computer, and an image pickup device 40 composed of two CCD cameras.
Images are being input from A and 40B. In the present embodiment, monochromatic printing will be described, but when printing is performed in two or more colors, the printing plate 90 or the color of the printing plate 90 may be changed repeatedly. Further, regarding the relative relationship between the printing plate 90 and the work 10a of the frame 110, the printing control unit 60 causes the printing control unit 60 to perform an X-axis adjusting mechanism 60x, a Y-axis adjusting mechanism 60y, and a Z-axis adjusting mechanism 60z. The print control unit 70 uses the X-axis adjusting mechanism 70x, the Y-axis adjusting mechanism 70y, and the Z-axis adjusting mechanism 60z to perform positioning.

The printing plate 90 is provided with a floating index 20a. The floating index 20a is provided at a position apart from the work position reference index a provided on the work 10a by a predetermined distance (X1, Y1). Therefore, from the position of the conventional plate making position reference hole 101a, a predetermined distance (-X1,-
The position changed by Y1) matches the position of the work position reference index a provided on the work 10a. Further, the printing plate 90 is provided with a floating index 20b. The floating index 20b is provided at a position apart from the work position reference index b provided on the work 10a by a predetermined distance (X2, Y2). Therefore, from the position of the conventional plate making position reference holes 101a and 101b shown in FIG.
The positions changed by (-X1, -Y1) and (-X2, -Y2) match the positions of the work position reference indices a and b provided on the work 10a.

The monitor 50 is for confirming the image positions of the image pickup devices 40A and 40B. The images of the image pickup devices 40A and 40B are images of the works 10a and 1 attached to the frame bodies 110 and 120.
It is used to detect the work position reference indices a and b provided at 0b. The positions of the work position reference indexes a and b provided on the works 10a and 10b are two-dimensionally detected by the main controller 30.

Next, the basic operation will be described.

First, the work 10b attached to the frame 120.
The work position reference indices a and b provided on the
0B, so that the work position reference indices a and b become the image positions detected by the predetermined image pickup devices 40A and 40B.
The print control unit 60 sets the Z-axis adjusting mechanism 60z to the print position,
The X-axis adjusting mechanism 60x and the Y-axis adjusting mechanism 60y move the work position reference indices a and b, that is, the frame 120 to which the work 10b is attached. Work position reference indices a and b
When a predetermined image position detected by the image pickup devices 40A and 40B is reached, the Z-axis adjusting mechanism 6 from the print control unit 60 is operated.
0z, the position information of the X-axis adjusting mechanism 60x and the Y-axis adjusting mechanism 60y is stored, the transport path 1 is moved in the X-axis direction, and the work 10 of the frame 110 is located at the mechanical origin immediately below the printing plate 90.
Move a.

Then, when the work 10a attached to the frame 110 moved below the printing plate 90 is set at a predetermined mechanical origin, the floating indexes 20a and 20b of the printing plate 90 are set.
At predetermined positions (-X1, -Y1), (-X2, -Y2) from the work position reference indices a and b provided on the work 10a,
Printing is performed using the printing plate 90, and at the same time, the floating indexes 20a and 20b are located at predetermined positions (X1, Y1) and (X2, Y2) away from the work position reference indexes a and b provided on the work 10a. Are printed as the print marks 20aa and 20bb of the floating indexes 20a and 20b of the printing plate 90.

As described above, the print marks 20aa of the floating indexes 20a and 20b of the printing plate 90 are superimposed on the positions of the workpiece position reference indexes a and b provided on the workpieces 10a and 10b.
Since 20bb is not printed, the work 10a,
It is possible to perform accurate printing without changing the work position reference indices a and b provided on 10b.

As described above, when the present invention is carried out,
In the relationship between the works 10a and 10b having the work position reference index that can uniquely specify the position and the printing plate 90, at least the XY coordinates in the X-axis and Y-axis directions can be set to be relatively movable two-dimensionally. Good. At this time, in order to improve the accuracy of the image capturing position, it is desirable to perform image capturing at the print position. To that end, the image pickup devices 40A and 40B
Set the installation position of to a distance that assumes the printing position, or
Alternatively, the works 10a, 10b and / or the printing plate 9
It is necessary to adjust 0 in the Z-axis direction. Preferably, in the case of carrying out the present invention, in the relationship between the works 10a and 10b having the work position reference index that can uniquely specify the position and the printing plate 90, the X-axis direction, the Y-axis direction, and the Z-axis direction. It is desirable to be able to set relative movement in three dimensions.

The work position reference indexes a and b of the print positioning apparatus of each of the above-mentioned embodiments are set outside the print area. Therefore, a plurality of reference holes of arbitrary shape, reference point printing, single or plural printing, etc. can be used as an index.

The work position reference indexes a and b of the print positioning apparatus of each of the above-mentioned embodiments are attached to the work 10 from the beginning, but the work position reference indexes a and b in the case of implementing the present invention. Does not necessarily specify the vicinity of the center of the work 10 and may be a single corner or a plurality of corners. In particular, in the case of a sheet such as a square shaped paper or an insulating substrate for a printed circuit board, it is possible to save the labor of providing the work position reference index. Also, one or more of 1 or more sides
The position n can be used as the work position reference indices a and b, and at this time, the punching position or the printing position is not required.

The floating indexes 20a, ..., 20f of the printing positioning apparatus of the above embodiment are the work position reference indexes a,
Since it is set by displacing a straight line around b, the index can be set simply by floating only in the X-axis or Y-axis direction, and the work 10 and the printing plate 91 can be manually set.
The positions of 92 and 93 can be easily confirmed.

In the printing positioning apparatus of the above-described embodiment, the work 10 having the work position reference indexes a and b whose positions can be uniquely specified is provided on the printing plate making plates 91, 92 and 93. 101a, 101b), the step of setting at least two-dimensionally movable XY coordinates in the X-axis and Y-axis directions, and separating the workpiece 10 from the workpiece position reference indices a, b in a specific direction. The N position of the plate making position reference index (101a of the conventional example,
Floating indicators 20a, ..., 20f to be matched with 101b)
And a step of performing N (N is an integer) printing on the work using the floating index.

Therefore, even when the work 10 is overprinted N times, the work position reference index a,
The floating index 20a at a position away from b in a specific direction,
20f, the Nth plate making position reference index (101 of the conventional example).
a, 101b), the plate-making position reference index (101a, 101b in the conventional example) is not printed N times on the work position reference index a, b provided on the work. , Can always ensure accurate standards.

At this time, if the printing position is deviated, the floating indices 20a, 20b, 20c, 20d, 20
Based on e and 20f, distances (-X1, -Y1), (-X2, -Y2),
Since it is sufficient to correct (-X3, -Y3), the subsequent printing positioning can be set accurately.

Here, a plate-making position reference index (101a, 101b in the conventional example) provided on the printing plate 91, 92, 93.
In relation to at least XY in the X-axis and Y-axis directions
The work 10 in which the coordinates are two-dimensionally movable relative to each other is the plate-making position reference index (101a, 101b in the conventional example) provided on the printing plate 91, 92, 93 and the work position reference provided on the work 10. It suffices that the indices a and b can be moved two-dimensionally or three-dimensionally. Of course, it may be rotatable about an axis (Z axis) perpendicular to the X-axis and Y-axis directions.

Further, the work position reference indexes a and b provided on the work 10 capable of uniquely specifying the position with respect to the work 10 may be any as long as the position of the work 10 can be specified. It can be used as an index for printing a reference point such as a corner or a plurality of reference holes penetrating, a point, −, +, circle, or the like.

The floating indices 20a, ..., 20f are assumed to be positions distant from the work position reference indices a and b in a specific direction when N times overprinting is performed on the work 10. By matching the N-th plate-making position reference index (101a, 101b in the conventional example) with the assumed index, overprinting without color misalignment becomes possible.

The printing positioning apparatus of the above-described embodiment is provided with the plate making position reference indexes (the conventional example) in which the work 10 having the work position reference indexes a and b whose positions can be uniquely specified is provided on the printing plate making plates 91, 92 and 93. 101a, 101b), the step of setting at least two-dimensionally movable XY coordinates in the X-axis and Y-axis directions, and separating the workpiece 10 from the workpiece position reference indices a, b in a specific direction. The N position of the plate making position reference index (101a of the conventional example,
Floating indicators 20a, ..., 20f to be matched with 101b)
And the N-th index is set so that it does not overlap any other index than the N-th index.
.., 20f are set, the work 10 is matched with the N-th index, and the work 10 is printed using the floating indices 20a, ..., 20f for the N-th time. It can be an invention.

Therefore, even when the work 10 is overprinted N times, the work position reference index a,
The floating index 20a at a position away from b in a specific direction,
20f, the Nth plate making position reference index (101 of the conventional example).
a, 101b), so that the work 1
The plate-making position reference indexes (101a, 101b in the conventional example) are not printed N times on the work position reference indexes a, b provided at 0, and the reference can always be secured accurately. Further, the Nth plate-making position reference index (101a, 101b of the conventional example) is printed on the Nth floating index 20a, ... It is also possible to confirm whether or not the overprinting has been properly performed by the floating indexes 20a, ..., 20f.

At this time, if the printing position is deviated, the floating indexes 20a, 20b, 20c, 20d, 20
Based on e and 20f, distances (-X1, -Y1), (-X2, -Y2),
Since it is sufficient to correct (-X3, -Y3), the subsequent printing positioning can be set accurately.

Here, a plate making position reference index (101a, 101b in the conventional example) provided on the printing plate 91, 92, 93.
In relation to at least XY in the X-axis and Y-axis directions
The work 10 in which the coordinates are two-dimensionally movable relative to each other is the plate-making position reference index (101a, 101b in the conventional example) provided on the printing plate 91, 92, 93 and the work position reference provided on the work 10. It suffices that the indices a and b can be moved two-dimensionally or three-dimensionally. Of course, it may be rotatable about an axis (Z axis) perpendicular to the X-axis and Y-axis directions.

Further, the work position reference indices a and b provided on the work 10 capable of uniquely specifying the position with respect to the work 10 may be any as long as the position of the work 10 can be specified. It can be an index such as corner or plural reference holes, reference point printing, single or plural + character printing, and the like.

The floating indices 20a, ..., 20f are assumed to be positions distant from the work position reference indices a and b in a specific direction when performing overprinting N times on the work 10. By matching the N-th plate-making position reference index (101a, 101b in the conventional example) with the assumed index, overprinting without color misalignment becomes possible.

Furthermore, the floating index 20 of the printing positioning method is used.
Since a, ..., 20f can be set at each corner of a square formed around the work position reference indices a and b,
In particular, in the case of four-color printing, it can also be used to confirm the position of each color and the amount of ink.

Furthermore, the floating index 2 of the printing positioning method
Since 0a, ..., 20f are set by linearly displacing the work position reference indices a and b, the indices can be set simply by floating only in the X-axis or Y-axis direction, and manually. The positions of the work and the printing plates 91, 92, 93 can be easily confirmed.

[0135]

As described above, according to the printing positioning device of the first aspect, in relation to the printing plate, at least the XY coordinates in the X-axis and Y-axis directions are arranged so as to be relatively movable in two dimensions. A work position reference index provided on the work that can uniquely specify the position with respect to the work,
When performing printing N times on the work, a position which is in a specific direction from the original plate making position reference index of the printing plate making, which matches the work position reference index, is set as an index of the Nth printing plate making. It is provided with a floating index and an arithmetic circuit for matching a corrected position, which is obtained by returning the position information separated in the specific direction from the floating index set as the index for the printing plate making, with the work position reference index.

Therefore, even when the work is overprinted N times, a position distant in the specific direction from the original plate-making position reference index of the printing plate making that matches the work position reference index is the N-th time. Based on the floating index set as the index for printing plate making, the plate making position reference index for the original printing plate making is calculated, and the work position reference index is made to match the Nth floating index, that is, the Nth plate making position reference index. Since printing is performed, the original plate-making position reference index is not printed N times on the work position reference index provided on the work, and the reference can always be accurately secured. Further, in particular, when the printing position is deviated, the distance may be corrected based on the floating index, so that the subsequent printing positioning can be accurately set, and overprinting without color misregistration becomes possible.

According to the printing positioning apparatus of the second aspect, in relation to the printing plate, at least the XY in the X-axis and Y-axis directions.
A work in which coordinates are arranged so as to be relatively movable in two dimensions, a work position reference index provided on the work that can uniquely specify a position with respect to the work, and N (N is an integer) with respect to the work When performing the second printing, a position, which matches the work position reference index and is apart from the original plate making position reference index of the printing plate making in a specific direction, is set as an index of the Nth printing plate making, and the Nth printing plate making index is set. The index of is a floating index that does not overlap with other indexes than the Nth time,
An arithmetic circuit for matching the corrected position, which is obtained by returning the position information separated in the specific direction from the floating index set as the index for the printing plate making, with the work position reference index.

Therefore, even when the work is overprinted N times, a position apart from the original plate-making position reference index of the original printing plate, which matches the work-position reference index, in the specific direction is set to the N-th position. Based on the floating index set as the index for printing plate making, the plate making position reference index for the original printing plate making is calculated, and the work position reference index is made to match the Nth floating index, that is, the Nth plate making position reference index. Since printing is performed, the plate-making position reference index is not printed N times on the work position reference index provided on the work, and the reference can always be accurately maintained. In addition, since the N times of the overprinting are printed at different positions for the Nth overprinting, it is possible to confirm by the floating index whether or not the Nth overprinting has been properly performed. . Further, in particular, when the printing position is deviated, the distance may be corrected based on the floating index, so that the subsequent printing positioning can be accurately set, and overprinting without color misregistration becomes possible.

In addition to the effect of claim 1 or claim 2, the work position reference index of the print positioning device according to claim 3 is:
Since it is one or more corners of the work,
In the case of a sheet such as a square shaped paper or an insulating substrate for a printed circuit board, it is possible to save the trouble of providing a work position reference index.

Since the floating index of the print positioning apparatus according to claim 4 is set by displacing on a straight line about the work position reference index, the effect according to any one of claims 1 to 3 is obtained. In addition, the index can be set simply by floating only in the X-axis or Y-axis direction, and the positions of the work and the printing plate can be easily confirmed manually.

According to a fifth aspect of the printing positioning method, at least the XY coordinates in the X-axis and Y-axis directions are two-dimensionally relative to each other in the relationship between the work having the work position reference index capable of uniquely specifying the position and the printing plate. A step of setting to be movable, and a position distant in a specific direction from the original plate making position reference index of the printing plate making, which matches the work position reference index,
A step of setting as a floating index as an index of the Nth printing plate making, and a correction position obtained by returning position information separated from the floating index set as the index of the printing plate making in the specific direction to the work position reference index, And a step of printing the work for the Nth time.

Therefore, even when the work is overprinted N times, a position apart from the original plate-making position reference index of the original printing plate, which matches the work-position reference index, in the specific direction is set to the N-th position. Based on the floating index set as the index for printing plate making, the plate making position reference index for the original printing plate making is calculated, and the work position reference index is made to match the Nth floating index, that is, the Nth plate making position reference index. Since printing is performed, the original plate-making position reference index is not printed N times on the work position reference index provided on the work, and the reference can always be accurately secured. Further, in particular, when the printing position is deviated, the distance may be corrected based on the floating index, so that the subsequent printing positioning can be accurately set, and overprinting without color misregistration becomes possible.

According to a sixth aspect of the printing positioning method, at least the XY coordinates in the X-axis and Y-axis directions are two-dimensionally relative to each other in the relationship between the work having the work position reference index that can uniquely specify the position and the printing plate. A step of setting to be movable, and a position distant in a specific direction from the original plate making position reference index of the printing plate making, which matches the work position reference index,
A step of setting as a floating index as an index of the Nth printing plate making, and a correction position obtained by returning position information separated from the floating index set as the index of the printing plate making in the specific direction to the work position reference index, And a step of printing the work for the Nth time.

Therefore, even when the work is overprinted N times, a position distant in the specific direction from the plate-making position reference index of the original printing plate which matches the work position reference index is the N-th time. Based on the floating index set as the index for printing plate making, the plate making position reference index for the original printing plate making is calculated, and the work position reference index is made to match the Nth floating index, that is, the Nth plate making position reference index. Since printing is performed, the original plate-making position reference index is not printed N times on the work position reference index provided on the work, and the reference can always be accurately secured. Further, in particular, when the printing position is deviated, the distance may be corrected based on the floating index, so that the subsequent printing positioning can be accurately set, and overprinting without color misregistration becomes possible.

Since the floating index of the printing positioning method according to claim 7 is set by displacing on a straight line about the work position reference index, the floating index is set.
In addition to the effect of, the index can be set simply by floating only in the X-axis or Y-axis direction, and the positions of the work and the printing plate can be easily confirmed manually.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing a print positioning apparatus according to a first embodiment of the present invention.

FIG. 2 is a flowchart of a program executed by a main controller of the print positioning apparatus according to the first embodiment of the present invention.

FIG. 3 is an overall configuration diagram showing a print positioning device according to a second embodiment of the present invention.

FIG. 4 is a flowchart of a program executed by a main controller of the print positioning apparatus according to the second embodiment of the present invention.

FIG. 5 is a flowchart of an N setting routine used in the program of the main control device of the print positioning apparatus according to the second embodiment of the present invention.

FIG. 6 is an overall configuration diagram showing a print positioning device according to a third embodiment of the present invention.

FIG. 7 is an explanatory diagram illustrating a floating index of the print positioning apparatus according to the embodiment of the present invention.

FIG. 8 is an overall configuration diagram showing a printing positioning device according to a fourth embodiment of the present invention.

FIG. 9 is a diagram illustrating the principle of conventional printing.

[Explanation of symbols]

a, b: Work position reference index 10 (10a, ..., 10c): Work 20a, ..., 20f: Floating index 20aa, ..., 20ff: print mark 30: Main controller 40, 41, 42: Imaging device 60, 70, 80: print control unit 91, 92, 93: Printing plate making 101a, 101b: Plate making position reference index of the conventional example

Claims (7)

[Claims] 1. A work in which at least XY coordinates in the X-axis and Y-axis directions are arranged so as to be relatively movable in a two-dimensional manner in relation to a printing plate, and the work whose position can be uniquely specified with respect to the work. And a work position reference index provided in, when printing the work N times (N is an integer),
A floating index that is set as an index for the Nth printing plate making and a position that is apart from the original plate making position reference index of the printing plate making that matches the work position reference index, as an index for the Nth printing plate making process. A print positioning apparatus, comprising: an arithmetic circuit that matches a corrected position, which is obtained by returning position information separated from the index in the specific direction, with a work position reference index. 2. A work in which at least the XY coordinates in the X-axis and Y-axis directions are arranged so as to be relatively movable in a two-dimensional manner in relation to the printing plate, and the work whose position can be uniquely specified with respect to the work. And a work position reference index provided in, when printing the work N times (N is an integer),
A position distant in a specific direction from the original plate-making position reference index of the printing plate making that matches the work position reference index is set as an index of the N-th printing plate making, and the N-th index is the other N-th time. A floating index that does not overlap with other indexes, and an arithmetic circuit that matches the corrected position, which is the position information separated from the floating index set as the index for printing plate making, in the specific direction with the work position reference index. A printing positioning device comprising: 3. The print positioning apparatus according to claim 1, wherein the work position reference index is one or a plurality of corners of the work. 4. The print positioning apparatus according to claim 1, wherein the floating index is set by linearly displacing the work position reference index as a center. 5. A step of setting at least two-dimensional relative movement of XY coordinates in the X-axis and Y-axis directions in a relationship between a work having a work position reference index capable of uniquely specifying a position and a printing plate. A step of setting a position, which matches the work position reference index, apart from the original plate-making position reference index of the printing plate making in a specific direction, as a floating index as an index of the Nth printing plate making process, and as an index of the printing plate making process. A printing position, wherein the corrected position obtained by returning the position information separated from the set floating index in the specific direction is matched with the work position reference index, and the Nth printing is performed on the work. Method. 6. A step of setting at least two-dimensional relative movement of XY coordinates in the X-axis and Y-axis directions in a relationship between a work having a work position reference index capable of uniquely specifying a position and a printing plate. , A position that is apart from the original plate-making position reference index of the printing plate making that matches the work position reference index in a specific direction is an index of the N-th printing plate making, and the N-th index is other than the N-th time The step of setting a floating index that does not overlap with the index of No., and the corrected position obtained by returning the position information separated in the specific direction from the floating index set as the index of the printing plate making is matched with the work position reference index. And a step of performing the Nth printing on the work, the printing positioning method. 7. The print positioning method according to claim 5, wherein the floating index is set by linearly displacing the work position reference index as a center.