JPH07304153A - Screen printer - Google Patents

Abstract

PURPOSE:To provide a screen printer for improving the printing finish precision to a work without moving a screen and the work by providing a recognition means moving mechanism for withdrawing a recognition means at the time of printing after registration. CONSTITUTION:A screen 25 and a work 1 are registered roughly to a work and screen recognition camera 16 on the fixed end of the recognition side. Then the stop position of a recognition unit is measured by using a camera position measuring means 31 and stored in a data store device 6 as a camera origin of the recognition unit. Simultaneously a table base 8 is lifted up until a work relative registration mechanism (on the work side) 10 is engaged with a screen and work relative registration mechanism (on the screen side) 20 by a table up and down moving mechanism 9 to fix the relative position of the screen 25 with the work 1. Then the camera 16 is moved by a camera and illumination moving mechanism 13 so that the camera 16 is not an obstacle to the printing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen printing device.

[0002]

2. Description of the Related Art A conventional screen printing apparatus includes a printing screen (hereinafter, referred to as a printing screen) having a printing pattern corresponding to through-hole filling printing and wiring pattern printing.
A screen setting part for setting a screen), a work setting part for setting a member to be printed (a green sheet having a through hole, hereinafter referred to as a work), and a position for aligning the screen with the work by some method. A matching section and a printing section that prints the conductor paste on the work (to be precise, fills the through holes formed in the work with the conductor paste when filling holes, and prints the wiring pattern on the work surface when printing the wiring pattern). Composed of.

FIG. 8 is an explanatory diagram for explaining an operation procedure of a conventional screen printing apparatus.

The operation procedure of the conventional screen printing apparatus will be described below with reference to FIG.

Step 1: Set the screen 810 in the recognition section and recognize the reference point 830 for screen alignment (hereinafter, the recognition point on the screen side is referred to as the reference point) (see FIG. 8).
(A)).

Step 2: The screen 810 having the reference point 830 recognized is moved from the recognition section to the printing section (see FIG. 8).
(B)).

Step 3: XYZθ adjusting mechanism for the work 850
(Hereinafter, referred to as a print table 820) and in the Z-axis direction in order to recognize a recognition point 860 for workpiece recognition alignment (hereinafter, a workpiece recognition alignment reference point is referred to as a recognition point) at the same height as the screen 810. The height is adjusted and the recognition point 860 is recognized (FIG. 8C).

The printing table 820 (for example, XYZθ adjusting mechanism) referred to here is the horizontal direction (X
Axis, Y axis), vertical direction (Z axis) adjustment, rotation angle θ
Refers to a table that can be adjusted.

Procedure 4: Recognition point 860 of work 850,
The alignment of the screen 810 recognized in step 1 with the reference point 830 is performed by adjusting the print table 820 (FIG. 8D).

Step 5: Workpiece 85 whose alignment has been completed
0 is moved to the printing unit (FIG. 8 (E)).

Step 6: The work 850 is raised (actually, the printing table 820 is moved in the Z-axis direction) to make a gap with the screen 810 (FIG. 8).
(F)).

Step 7: In the printing section, for example, in the case of hole filling printing, the conductor paste 87 is applied on the screen 810.
0 is supplied, the squeegee 840 (spatular shape) is lowered, a printing force is applied to the squeegee 840, the screen 810 and the work 850 are brought into close contact with each other, and the conductor paste 870 is scraped to run on the screen 810. A conductor paste 870 is filled in the through holes in 850 (FIG. 8G).

Step 8: The work 850 after printing is taken out (FIG. 8 (H)).

Step 9: In order to print the next work 880 (FIG. 8 (I)), steps 1 to 8 are repeated.

By the above operation, the work 850 is
We fill in holes and print wiring patterns.

[0016]

However, in the above-mentioned conventional screen printing apparatus, since the installation locations of the recognition section and the printing section are different for the screen and the work, there are the following problems.

(1) Since the screen is moved to the printing unit after the reference point of the screen is recognized by the camera, the accuracy of the stop position of the screen in the printing unit affects the accuracy of print finish.

Specifically, for example, if the size of the screen is □ 500 mm, the amount of movement of the screen is 5 mm.
00 mm or more is required, but the stop position accuracy takes into consideration the measurement accuracy when the moving amount is corrected using a measuring means such as a linear scale from the past results, and the expansion and contraction due to the material temperature change of the moving mechanism and the measuring means. Stop position accuracy is ± 15μ
It will be about m.

(2) As in the case of moving the screen, the stop position accuracy and the relative position accuracy with the screen accompanying the movement of the work from the recognition unit to the printing unit influence the printing finish accuracy, and in particular, There is a problem that the accuracy of printing finish on a plurality of works with the same screen is lowered.

(3) Since the screen and the work are moved from the recognition section to the printing section, there are problems that the apparatus becomes large, the mechanism becomes complicated, and dust is generated.

(4) Since the screen setting section and the print table on which the work is set are separated from each other, the required rigidity of the print table cannot be ensured. Therefore, when printing with high printing force, the work and the print are printed during printing. There is a problem that the table moves a minute amount as the squeegee travels, and the minute amount of movement affects print finish accuracy.

It is an object of the present invention to provide a screen printing apparatus which improves the precision of printing finish on a work without moving the screen and the work.

Another object of the present invention is to provide a screen printing apparatus which corrects the relative position between the screen and the work with high accuracy and improves the printing finish accuracy on a plurality of works by the same screen.

Another object of the present invention is to provide a screen printing apparatus that reduces the amount of movement of a squeegee on a work and a printing table.

[0025]

The following is a brief description of the outline of the typical inventions among the inventions disclosed in the present application.

That is, a printing screen setting means for setting a printing screen having a reference point on the surface, a printing object member setting means for setting a printing object member having a recognition point on the surface, the reference point and the Recognition means for recognizing a recognition point, alignment means for aligning at least the X-axis and the Y-axis in the horizontal direction with the reference point and the recognition point recognized by the recognition means, and the alignment means. A screen printing apparatus comprising: a printing unit that prints a printing member containing a conductive paste on the aligned printing target member via the printing screen, wherein the printing screen setting unit is the printing target member. It is arranged on the upper part of the setting means to form an integrated structure, and the printing screen setting means of the integrated structure and the mark are integrated. Between the target member setting means, there is a space in which the recognition means for recognizing the reference point from the lower part of the printing screen and recognizing the recognition point of the print target member from the upper part can be arranged, After performing the alignment by the alignment means using the recognition means, the recognition means moving mechanism for retracting and moving the recognition means at the time of printing is provided.

Further, in the screen printing apparatus, the recognition position measuring means for measuring the recognition position of the recognition means when the recognition means recognizes the reference point and the recognition point, and the recognition position measuring means measures the recognition position. Correction means for correcting the next recognition position of the recognition means based on the measurement result of the recognition position of the recognition means.

In the screen printing apparatus, the print object member setting means having an integrated structure is moved up and down, and the print object member setting means is moved by the up and down moving guide means. Relative position determining means for determining the relative position of the recognized point of the printed object member and the reference point of the printing screen set on the printing screen setting means are provided.

[0029]

According to the above-mentioned means, the printing screen setting means and the printing object member setting means are vertically arranged in an integrated structure, and the printing screen setting means arranged on the upper side and the printing screen setting means arranged on the lower side. The recognition means provided in the space between the printing target member setting means recognizes the reference point from the lower part of the printing screen, and recognizes the recognition point of the printing target member from the upper part. Since the recognizing means moving mechanism moves the recognizing means to retract during printing after performing the position adjustment by the position adjusting means, it is possible to improve the finish accuracy of the print on the work without moving the screen and the work. You can

The recognition position measuring means measures the recognition position of the recognition means when the recognition means recognizes the reference point and the recognition point, and the next recognition means based on the measured result. Since the recognition position of is corrected, it is possible to improve the printing finish accuracy on a plurality of works by the same screen.

The vertical movement guide means moves the integrated printing object member setting means up and down, and the relative position determining means is set on the moved printing object member setting means. Since the relative position between the recognition point of the print target member and the reference point of the printing screen set in the printing screen setting means is determined, the movement amount of the work and the printing table due to the traveling of the squeegee is reduced. You can

[0032]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

In all the drawings used in this embodiment, those having the same function are designated by the same reference numeral, and the repeated description thereof will be omitted.

FIG. 1 is an overall structural view showing the overall structure of an embodiment of the screen printing apparatus and apparatus control section according to the present invention.

In FIG. 1, reference numeral 100 denotes a device control section, which comprises a monitor 3, a device control microcomputer (hereinafter referred to as a control microcomputer) 4, an operation panel 5, and a data storage device 6.

Reference numeral 110 denotes a screen printing apparatus, which comprises a screen setting section, a work / set / positioning section, a work / screen recognition section, a print executing section, and a loader / unloader section.

The screen setting section includes a main body base 2 and
A screen clamp mechanism 26 that clamps (fixes) the screen 25 to position the screen 25, and a screen / work relative positioning mechanism (screen side) 20.

The work / set / positioning unit is the work 1
Setting table 23, positioning means 7, table base 8, table vertical movement mechanism 9, screen / work relative positioning mechanism (work side) 10, table vertical movement guide 11 fixed to main body base 2 and recognition. The time table positioning mechanism 30 and the like are included.

The work / screen recognition unit includes a camera / lighting moving mechanism 13, a screen lens 14, a camera / lighting fixed base 15, a work / screen recognition camera 1.
6, a screen illumination 17, a reflecting mirror 18, a work illumination 19, a work lens 24, and the like.

The print execution unit is composed of a squeegee 22 and a squeegee mechanism 21.

The loader / unloader unit is the loader mechanism 2
9, a work transfer mechanism (loader side) 34, a work transfer mechanism (unloader side) 35, an unloader mechanism 37, and the like.

The alignment means 7 and the print execution unit can be realized by the existing alignment technology and print execution technology, respectively.

FIG. 2 is a structural diagram showing the structure of the work screen recognition section, FIG. 2 (A) is a perspective structural view showing the detailed structure of the work screen recognition section, and FIG. 2 (B) is the work screen recognition. It is an internal structure figure showing the internal structure of a part.

The configuration and operation of the work screen recognition section will be specifically described below with reference to FIG.

As shown in FIG. 2A, the camera / illumination moving guide 12 and the camera position measuring means 3 are provided on the main body base 2.
1 is fixed, and the camera / illumination fixing base 15 slides in the arrow direction along the camera / illumination moving guide 12.

Further, the camera / illumination moving mechanism 13 moves the camera / illumination fixed base 15 at the time of recognizing the recognition point of the work 1 and the reference point of the screen 25 and at the time of printing, and stops at each time point. ing.

The camera / illumination fixed base 15 has a work / screen recognition camera 16, a screen illumination 17 (not shown), a reflecting mirror 18, a screen lens 14, and a work illumination 19 (not shown). ), The work lens 24 is fixed (hereinafter, this fixed portion is simply referred to as a recognition unit).

In FIG. 2B, 41 is a reflecting mirror housing, 47 is a reflecting mirror rotating mechanism, 230 is a reference point of the screen 25, and 260 is a recognition point of the work 1.

The camera / illumination moving mechanism 13 is shown in FIG.
As shown in (A) and (B), the recognition unit is moved to the recognition-side fixed end and stopped.

The stop position of the recognition unit at this time is measured by using the camera position measuring means 31, and the result is stored in the data storage device 6 as the camera origin of the recognition unit.

Next, the screen illumination 17 shown in FIG. 2B is turned on, the reflecting mirror rotating mechanism 47 stops the reflecting mirror 18 at the recognition position of the screen 25, and the reference magnified by the screen lens 14 is used. Point 230 (work
The visual field size of the screen recognizing camera 16 is a size in which a reference point can be entered: the image sticking accuracy of the screen and the coarse positioning accuracy of the screen are taken into consideration.
10 (see FIG. 4).

The reference point 230 of the screen 25, which has been taken into the image processing device 410 (see FIG. 4), is subjected to image processing, and the reference point 23 of the screen 25 is based on the obtained result.
The data is stored as 0 in the data storage device 6.

At this time, the reflecting mirror 18 is repeatedly rotated and stopped, and each time it is stopped at the recognition position of the screen 25, it is taken into the image processing device 410 (see FIG. 4), and the obtained result (for example, barycentric coordinate data etc.) The average value is displayed on screen 2
5 may be stored in the data storage device 6 as the reference point 230.

Next, the screen illumination 17 is turned off, and the work illumination 19 shown in FIG. 2B is turned on. And
The reflecting mirror rotating mechanism 47 stops the reflecting mirror 18 at the recognition position of the work 1 and projects the recognition point 260 on the reflecting mirror 18,
It is taken into the image processing device 410 (see FIG. 4) by the work screen recognition camera 16.

The recognition points 260 of the work 1 taken into the image processing device 410 (see FIG. 4) are subjected to image processing, and based on the obtained results, the recognition points 260 of the work 1 are stored in the data storage device 6.

At this time, the reflecting mirror 18 is repeatedly rotated and stopped, and is taken into the image processing device 410 (see FIG. 4) every time it is stopped at the recognition position of the work 1, and the obtained results (for example, barycentric coordinate data) are obtained. The average value is the recognition point 26 of the work 1.
It may be stored as 0 in the data storage device 6.

FIG. 3 is a diagram showing an example in which four recognition units are attached. As shown in FIG. 3, the recognition unit is configured so that, depending on the number of work screen recognition cameras 16,
It is also possible to fix and move n pieces (n is an integer of 2 or more).

FIG. 4 is a block diagram showing the overall construction of a screen printing system including the screen printing apparatus of this embodiment.

In FIG. 4, 110 is a screen printing device. An image processing device 410 includes a camera 16-
recognition point 2 of work 1 obtained by i (i = 1 to n)
The image of the reference point 230 of 60 and the screen 25 is processed.

The image processing device 410 can be realized by using an existing image processing technique.

Reference numeral 420 is other alignment information,
Information acquired in advance may be stored and used.

FIG. 5 is an explanatory view for explaining the positioning operation of the screen printing apparatus of this embodiment.

In FIG. 5, reference numeral 8 is a table base, which is actually composed of a plurality of table bases 8 and 8A, 8B. 510 is a reference screen, 52
Reference numeral 0 is a reference work, and reference numeral 530 is a positional deviation amount recognition means.

FIG. 6 is a flow chart for explaining the procedure of the entire screen printing process of this embodiment.

The printing operation of the screen printing apparatus of this embodiment will be described below with reference to FIGS. 1 to 5 and the flowchart of FIG.

As a precondition for the description, it is assumed that the supply of the apparatus power source and the setting of printing conditions have been completed in advance. Further, the operation of each movable part and the calculation of the control device can be operated independently by an operation switch or the like, but here, a one-cycle printing operation that automatically operates will be described.

First, as a preliminary preparation, as shown in FIG.
The positioning operation at the descending end of the printing table 23 is performed by the recognition-time table positioning mechanism 30.

First, the position of the rising end of the printing table 23 and
The relative positional deviation at the descending end of the print table 23 is measured in advance by the positional deviation amount recognition means 530 using the reference screen 510 and the reference work 520, and the deviation amount is stored in the data storage device 6 as a correction value and the control microcomputer 4 is used. Therefore, it can be corrected at the time of alignment.

Next, as shown in FIG. 6, after removing the reference screen 510, the screen 25 is set on the screen setting section, and then the work 1 is set on the printing table 23 instead of the reference work 520.

Next, by pushing the start switch (not shown) on the operation panel 5 shown in FIG. 1, the screen clamp mechanism 26 shown in FIG. 1 clamps the screen 25, and the screen 25 is fixed to the main body base 110. Fix it. At this time, the screen 25 is roughly positioned with respect to the work screen recognition camera 16 at the recognition-side fixed end (step 601).

Next, the work 1 set on the print table 23 is fixed to the print table 23 by a work fixing means (not shown). At this time, the work 1 is the work screen recognition camera 16 at the recognition side fixed end.
Is roughly positioned with respect to (step 602).

Next, the camera / illumination moving mechanism 13
The recognition unit is moved to the recognition-side fixed end and stopped (step 603). The stop position of the recognition unit at this time is measured using the camera position measuring means 31, and the result is stored in the data storage device 6 as the camera origin of the recognition unit (step 604).

After this position alignment, the work may be recognized and aligned again, or other alignment information 420 may be used for further correction for alignment.

At the same time, the table vertical movement mechanism 9
Screen / work relative positioning mechanism (work side) 10
To the table / work relative positioning mechanism (screen side) 20 until the table up / down movement guide 11
The table base 8 guided by the table 1 is lifted to align the relative positions of the screen 25 and the work 1 (step 60).
6).

Next, since the camera 16 (actually, all of the recognition units) becomes an obstacle for executing printing, the camera / illumination moving mechanism 13 moves the camera 16 (step 607). .

Next, a conductor paste (not shown) is supplied onto the screen 25, and the squeegee mechanism 21 is used.
While the squeegee 22 is lowered, a preset printing force is applied to the squeegee 22 and the squeegee 22 is moved and run at a preset squeegee moving speed to perform hole filling printing or wiring pattern printing (step 60).
8).

After the printing is completed, a conductor paste (not shown) is collected, ink is returned, and the like, and the squeegee mechanism 22
Causes the squeegee 24 to rise and return to the origin.

Next, the table vertical movement mechanism 9 lowers the table base 8 guided by the table vertical movement guide 11.

Finally, the screen printing apparatus 110 is stopped, the movable part is returned to the origin, and the work 1 after printing is removed (step 609).

Although the printing operation for one cycle is completed, the case where the same pattern is printed on the work 1 without changing the screen 25 will be described below.

First, the second work 1 is set in the print execution unit (step 602).

Next, by the camera / illumination moving mechanism 13,
The recognition unit is moved to the recognition side fixed end and stopped / fixed (step 603). The stop position of the recognition unit at this time is measured using the camera position measuring means 31 (step 610), and the result is stored in the data storage device 6 as the stop position of the second recognition unit.

If the point of the stop position of the second recognition unit is the same as the origin of the first recognition unit, the first
Using the coordinates of the reference point 230 recognized the second time, the work 1
After recognizing and aligning the same as in the first printing operation, the camera 16 (actually, all of the recognition units)
Is moved to perform printing (step 608).

When the point of the stop position of the second recognition unit differs from the origin of the first recognition unit, or when the deviation exceeds the allowable range (the allowable range is determined by the user side) Of the second recognition unit), the difference between the point of the stop position of the second recognition unit and the origin of the recognition unit is added to the reference point 230 using the control microcomputer 4 to correct (in this case, the reference point 230). The coordinate system of the recognition unit is unified) (step 611).

The corrected point is stored in the data storage device 6 as a new reference point 230, and the work 1 is printed by recognizing and aligning the recognition point 260 of the work 1 as in the first printing operation. Then, the work 1 that has been printed is removed (step 608) (step 609).

In addition, the camera / illumination moving mechanism 13 moves the recognition unit to the recognition-side fixed end and stops it.
A method is also conceivable in which the recognition unit is fixed, the stop position of the recognition unit at this time is measured using the camera position measuring means 31, and the result is fed back to the camera / illumination moving mechanism 13 to move the recognition unit to the origin of the camera position. To be

According to this method, it is not necessary to feed back the position of the recognition unit to the reference point 230 for correction.

FIG. 7 is an explanatory view for explaining another method of fetching the screen reference point / work recognition point shown in FIG. 2 from the work / screen recognition camera into the image processing apparatus.

FIG. 7A shows the camera as a work camera 7.
3 and a screen camera 72 are prepared, and the reflecting mirror 18 is fixed and taken into the image processing device 410 (see FIG. 4) (the above-mentioned recognition of the repeating reference point / recognition point, image processing, and average calculation are performed. It becomes unnecessary). Four
Reference numeral 1 is a reflector housing.

In FIG. 7 (B), two types of the reflecting mirror 18 are prepared, a work mirror 75 and a screen mirror 76, which are switched by the reflecting mirror moving means 74, and the image processing device 410 is used.
(See FIG. 4).

FIG. 7 (B-1) is a cross-sectional view of the work screen recognition camera 16 and the reflecting mirror 18 as seen from the side, and FIG. 7 (B-2) is a plan view as seen from above. .

In FIG. 7C, when the screen image 79 is captured, the shutter means A81 is used so that the work image 80 cannot be recognized, and the screen image 79 is transferred to the double-sided mirror 7.
Camera 16 for direct work screen recognition by reflecting at 7
5 shows a method for loading the image processing apparatus 410 (see FIG. 4).

On the other hand, when capturing the work image 80, the shutter means B82 is used so that the screen image 79 cannot be recognized, the work image 80 is reflected by the double-sided mirror 77 to the mirror 78, and the work image 80 reflected on the mirror 78 is reflected. Is indirectly taken into the image processing device 410 (see FIG. 4) by the work screen recognition camera 16.

As described above, there are various kinds of methods of recognizing the recognition point 260 of the work 1 and the reference point 230 of the screen 25, but it may be selected in consideration of economical efficiency.

As can be seen from the description of this embodiment,
By using the screen printing apparatus according to the present invention,
Since it is not necessary to move the work 1 and the screen 25, it is possible to solve the problem of the print finish accuracy due to the influence of the stop position accuracy accompanying the movement of the work 1 and the screen 25 in the conventional screen printing apparatus.

In this embodiment, a filter 33 is laid on the lower part of the work 1 by the filter supply / discharge mechanism 32 at the time of hole filling printing, and the work 1 is conveyed by using vacuum suction (not shown) and the magazine 28. Since the mechanism (loader side) 34, the work transfer mechanism (unloader side) 35, the loader mechanism 29, the unloader mechanism 37, etc. are known, the description thereof is omitted.

[0097]

The effects obtained by the typical ones of the inventions disclosed in this application will be briefly described as follows.
It is as follows.

(1) Since the recognition registration unit and the printing unit are integrated, there is no need to move from the recognition registration unit of the work and the screen to the printing unit, so that the accuracy of the printing finish can be improved.

(2) Since the recognition alignment unit and the printing unit are integrated, it is not necessary to move the screen or the work, so that the screen printing apparatus can be simplified and the screen printing apparatus can be downsized. Therefore, dust generation in the screen printing device can be reduced.

(3) Since the recognition position by the movement of the recognition means is measured by using the measurement means and the obtained result is corrected to the positioning reference point, the accuracy of printing finish on a plurality of works of the same pattern can be improved. it can.

(4) Since the work / screen relative positioning mechanism performs the positioning by vertically moving the entire print table having an integrated structure, the rigidity of the print table is increased and the movement amount of the work and the print table due to the traveling of the squeegee is increased. Even when the printing power is reduced and the printing power is high, it is possible to improve the printing finish accuracy.

[Brief description of drawings]

FIG. 1 is an overall structural diagram showing an overall structure of an embodiment of a screen printing apparatus according to the present invention.

FIG. 2 is a structural diagram showing a detailed structure of a work screen recognition unit of the present embodiment.

FIG. 3 is a diagram showing an example in which four recognition units of this embodiment are attached.

FIG. 4 is a block configuration diagram showing an overall configuration of a screen printing system including the screen printing apparatus of the present embodiment.

FIG. 5 is an explanatory diagram for explaining a positioning operation of the screen printing apparatus according to the present embodiment.

FIG. 6 is a flowchart for explaining the procedure of the entire screen printing process of this embodiment.

FIG. 7 is an explanatory diagram for explaining another method of the optical system of the present embodiment.

FIG. 8 is an explanatory diagram illustrating an operation procedure of a conventional screen printing apparatus.

[Explanation of symbols]

1 ... Work, 2 ... Main body base, 3 ... Monitor, 4 ... Control microcomputer, 5 ... Operation panel, 6 ... Data storage device, 7 ...
Known positioning means, 8 ... Table base, 9 ... Table vertical movement mechanism, 10 ... Screen / work relative positioning mechanism (work side), 11 ... Table vertical movement guide, 12 ... Recognition section movement guide, 13 ... Camera Illumination moving mechanism, 14 ... Screen lens, 15 ... Camera / light fixed base, 16 ... Work / screen recognition camera,
17 ... Screen illumination, 18 ... Reflector, 19 ... Work illumination, 20 ... Screen / work relative positioning mechanism (screen side), 21 ... Squeegee mechanism, 22 ... Squeegee, 23 ... Printing table, 24 ... Work lens, 25
... screen, 26 ... screen clamp mechanism, 27 ...
Next work, 28 ... Magazine, 29 ... Loader mechanism, 30 ...
Recognition table positioning mechanism, 31 ... Camera position measuring means, 32 ... Filter supply / discharge mechanism, 33 ... Filter,
34 ... Work transfer mechanism (loader side), 35 ... Work transfer mechanism (unloader side), 37 ... Unloader mechanism, 41 ...
Reflecting mirror housing, 47 ... Reflecting mirror rotating mechanism, 72 ... Screen camera, 73 ... Work camera, 74 ... Reflecting mirror moving means, 75 ... Work mirror, 76 ... Screen mirror, 77 ... Double-sided mirror, 78 ... Mirror, 79 ... Screen image, 80 ... Work image, 81 ... Shutter means A,
82 ... Shutter means B, 100 ... Device control section, 110
... screen printing device, 120 ... screen setting section,
1 ... 0 ... work set / positioning part, 140 ... work
Screen recognition unit, 150 ... Print execution unit, 160 ... Loader / unloader unit, 410 ... Image processing device, 420 ... Other alignment information, 510 ... Reference screen, 52
0 ... Reference work, 530 ... Position shift amount recognition means.

 ─────────────────────────────────────────────────── ─── Continuation of front page (71) Applicant 000233011 Hitachi Computer Engineering Co., Ltd. 1 Horiyamashita, Hadano City, Kanagawa Prefecture (72) Koji Matsuzawa 1st Horiyamashita, Hadano City, Kanagawa Prefecture (72) Inventor Hiroyuki Watanabe 1 Horiyamashita, Hadano, Kanagawa Pref., General Computer Division, Hiritsu Mfg. Co., Ltd. (72) Inventor Tetsuji Machida 4-3, Kanda Surugadai, Chiyoda-ku, Tokyo Inside Hitachi Techno Engineering Co., Ltd. (72) Inventor Tetsuhiro Yokoyama 1 Horiyamashita, Hadano-shi, Kanagawa Hitachi Computer Engineering Co., Ltd. (72) Inventor Hiroshi Hasegawa 1 Horiyamashita, Hadano, Kanagawa Pref. General-purpose computer division

Claims (3)

[Claims] 1. A printing screen setting means for setting a printing screen having a reference point on its surface, a printing object member setting means for setting a printing object member having recognition points on its surface, said reference point and said Recognition means for recognizing a recognition point, alignment means for aligning at least the X-axis and the Y-axis in the horizontal direction with the reference point and the recognition point recognized by the recognition means, and the alignment means. A screen printing apparatus comprising: a printing unit configured to print a printing member containing a conductive paste on the aligned printing target member via the printing screen, wherein the printing screen setting unit is the printing target member. The printing screen setting means and the printing target portion having the integrated structure are disposed on the setting means to form an integrated structure. Between the setting unit and the setting unit, there is a space in which the recognition unit that can recognize the reference point from the lower part of the printing screen and the recognition point of the printing target member from the upper part can be arranged, A screen printing apparatus comprising a recognition unit moving mechanism that retracts the recognition unit at the time of printing after the position is aligned by the position aligning unit using. 2. The screen printing apparatus includes position measuring means for measuring a recognition position of the recognition means when the recognition means recognizes the reference point and the recognition point, and the recognition measured by the position measurement means. The screen printing apparatus according to claim 1, further comprising a correction unit that corrects the next recognition position of the recognition unit based on the measurement result of the recognition position of the unit. 3. The screen printing apparatus is configured so that the print target member setting means having an integrated structure is moved up and down and the print target member setting means is moved by the vertical move guide means. And a relative position determining means for determining a relative position between the recognized point of the printed object member and the reference point of the printing screen set on the printing screen setting means. Item 1. The screen printing device according to Item 1.