JP4433539B2 - Printed wiring board printing apparatus and printing method - Google Patents

Description

[0001]
【Technical field】
The present invention relates to a printed wiring board printing apparatus and printing method for printing on a plurality of types of printed wiring boards with a single printer.
[0002]
[Prior art]
On the printed circuit board, solder resist, characters, target marks, barcodes, etc. are printed with ink as necessary. Such printing is performed by a single printing machine for a plurality of types of printed wiring boards in order to cope with the production of a small variety of products. The printing machine is configured such that a substrate jig for holding a printed wiring board and a printing mask on which a printing pattern is formed can be exchanged. Thus, a substrate jig and a printing mask corresponding to various types of printed wiring boards are mounted on the printing machine, and a plurality of types of printed wiring boards can be printed by a single printing machine.
[0003]
When changing the type of printed wiring board to be printed in the printing method, it is necessary to exchange the substrate jig and the printing mask. Hereinafter, a method for replacing the substrate jig and the printing mask will be described with reference to FIG.
First, the board jig mounted on the printing machine is removed, and then the board jig corresponding to the printed wiring board to be printed is mounted on the printing machine (step R1). Similarly, the printing mask is replaced (step R2).
Next, after visually aligning the positions of the substrate jig and the printing mask visually, the printed wiring board is set on the substrate jig and printing is actually performed (steps R3 and R4). The amount of deviation between the portion printed on the printed wiring board by this trial printing and the portion to be originally printed is measured by a length measuring machine (step R5).
[0004]
Based on the measurement result, the substrate jig and the print mask are manually moved to correct the deviation between the substrate jig and the print mask (step R6).
Next, printing is performed again on the printed wiring board, and measurement is performed in the same manner (steps R7 and R8). At this time, if there is a printing deviation, the deviation is corrected again (step R6).
By repeating this, the position and orientation of the substrate jig and the printing mask are matched, and then continuous printing is started (step R9).
[0005]
[Problems to be solved]
However, the printing method has the following problems.
That is, as described above, since the alignment of the substrate jig and the printing mask is performed manually by the operator, it takes time to exchange the substrate jig and the printing mask. That is, according to the above method, it is usually necessary to perform the correction of the deviation (step R6), the test printing (step R7), and the measurement (step R8) 5 to 6 times, and depending on the skill of the operator. Sometimes more than that.
In such a situation, when the type of printed wiring board to be printed is frequently changed, there is a problem that the production efficiency is remarkably lowered.
[0006]
In addition, with the increase in the density of printed wiring boards, high accuracy is required for printing. For this reason, high accuracy is required for the alignment of the substrate jig and the printing mask, and it is difficult to sufficiently meet the requirements in the manual alignment.
[0007]
The present invention has been made in view of such conventional problems, and it is an object of the present invention to provide a printed wiring board printing apparatus and printing method with a short replacement time for a substrate jig and a printing mask and high printing accuracy. is there.
[0008]
[Means for solving problems]
  The invention according to claim 1 is a printing apparatus for a printed wiring board configured to perform printing on a plurality of types of printed wiring boards with a single printing machine.
  The printing apparatus includes a position detection means for detecting the positions and orientations of the substrate jig and the print mask after the substrate jig and the print mask corresponding to the type of the printed wiring board to be printed are mounted on the printing machine. When,
  Arithmetic means for calculating a positional and orientation deviation amount between the substrate jig and the printing mask based on a detection result by the position detecting means;
  Correction means for automatically correcting a deviation between the substrate jig and the printing mask based on a calculation result by the calculation means;And
The substrate jig is mounted on a rotationally symmetric substrate jig mounting portion of a turntable, and the substrate jig mounting portion is always placed on the loading stage and substrate jig by rotating the turntable. It is configured to stand still at the position placed on the position detection stage, printing stage, and discharge stage,
The turntable is adjacent to a carry-in conveyor for carrying the printed wiring board and a carry-out conveyor for carrying the printed printed wiring board,
A feeding robot for feeding the printed wiring board from the carry-in conveyor to the substrate jig on the turntable is provided between the carry-in conveyor and the carry-in stage, and between the discharge stage and the carry-out conveyor. Is equipped with a discharge robot that discharges printed printed wiring boards from the discharge stage to the carry-out conveyorThe printed wiring board printing apparatus is characterized by the above.
[0009]
  The most notable aspect of the present invention is that the printing apparatus includes the position detecting means, the calculating means, and the correcting means.In addition, the substrate jig mounting portion is provided at a rotationally symmetrical place on the turntable, and the substrate jig mounting portion is always stationary on the input stage, the substrate jig position detection stage, the printing stage, and the discharge stage. In addition, the configuration is such that the loading and unloading robots perform loading and unloading of the printed wiring board to and from the board jig mounting portion on the turntable.
And theseAutomatically aligns the substrate jig with the printing mask.At the same time, loading, printing, and discharging of printed wiring boards can be performed automatically, continuously, and quickly without requiring manual labor.It is configured as follows.
  The alignment refers to matching the positions and orientations of the substrate jig and the printing mask.
[0010]
The deviation amount can be calculated as, for example, a deviation amount in the left-right direction, the front-rear direction, and the horizontal rotation direction between the substrate jig and the printing mask. That is, for example, how much the detected position and orientation of the substrate jig is shifted in the left-right direction, the front-rear direction, and the horizontal rotation direction based on the position and orientation of the printing mask detected by the detection means. To do. Conversely, based on the detected position and orientation of the substrate jig, it is also possible to calculate how much the detected position and orientation of the print mask is shifted in the left-right direction, the front-rear direction, and the horizontal rotation direction. .
[0011]
Furthermore, apart from the position and orientation of the substrate jig and the printing mask, a reference position and orientation are set, and how much the substrate jig and the printing mask are displaced from each other is calculated based on the set position. You can also.
In addition, printing of the printed wiring board includes printing of solder resist, characters, target marks, bar codes, and the like.
[0012]
Next, the effects of the present invention will be described.
As described above, the printing apparatus prints a plurality of types of printed wiring boards with a single printer. And when changing the kind of printed wiring board to print, it replaces with the board | substrate jig | tool and printing mask which were used until then, and is replaced | exchanged for the board | substrate jig | tool and printing mask according to the printed wiring board.
[0013]
For example, the substrate jig and the printing mask are exchanged as follows (see FIG. 2).
That is, after removing the substrate jig and the printing mask that have been used up to that point, the substrate jig and the printing mask to be newly used are mounted on the printing machine.
Next, the position and orientation of the substrate jig, and further the position and orientation of the printing mask are detected by the detecting means.
Based on the detected position and orientation data of the substrate jig and the printing mask, a deviation amount between the position and orientation is calculated by the arithmetic means.
[0014]
According to the calculated deviation amount, the correction means moves one or both of the substrate jig and the printing mask to automatically correct the deviation, and the position and position of the substrate jig and the printing mask. Match the orientation.
As described above, after the substrate jig and the printing mask are aligned, the printed wiring board is set on the substrate jig, and continuous printing is started.
[0015]
As described above, in the printing apparatus, the position of the substrate jig and the printing mask can be automatically adjusted using the position detection unit, the calculation unit, and the correction unit. Therefore, alignment of the substrate jig and the printing mask can be performed easily, quickly and accurately.
[0016]
That is, since the printing apparatus has the position detection means, the position and orientation of the substrate jig and the printing mask mounted on the printing machine can be detected quickly and accurately.
Further, since the printing apparatus has the calculation means, the amount of deviation between the substrate jig and the printing mask can be calculated immediately and accurately.
Further, since the printing apparatus has the correcting means, it is possible to correct the deviation between the substrate jig and the printing mask quickly and reliably.
[0017]
That is, the printing apparatus immediately and accurately calculates the amount of deviation between the substrate jig and the printing mask detected quickly and accurately, and quickly and accurately based on the accurate calculation result. Correctly correct the misalignment between the substrate jig and the printing mask. Therefore, alignment of the substrate jig and the printing mask can be performed with high accuracy in a short time.
[0018]
  As a result, the substrate jig and the printing mask can be exchanged accurately in a short time in accordance with the change of the type of printed wiring board to be printed. Therefore, according to the printing apparatus, a high-quality printed wiring board can be efficiently manufactured.
In the present invention, the substrate jig is mounted on a rotationally symmetric substrate jig mounting portion of the turntable, and the substrate jig mounting portion is always inserted by rotating the turntable. It is configured so as to be stationary at positions arranged on the stage, the substrate jig position detection stage, the printing stage, and the discharge stage.
The turntable is adjacent to a carry-in conveyor for carrying in the printed wiring board and a carry-out conveyor for carrying out the printed printed wiring board.
A feeding robot that feeds the printed wiring board from the carry-in conveyor to the board jig on the turntable is provided between the carry-in conveyor and the carry-in stage, and between the discharge stage and the carry-out conveyor. Is provided with a discharge robot for discharging the printed printed wiring board from the discharge stage to the carry-out conveyor.
Therefore, the printed wiring board can be supplied to the substrate jig on the turntable, and the printed printed wiring board can be supplied to the discharge conveyor without any manual operation, and can be automatically, continuously and rapidly printed.
[0019]
  As described above, according to the present invention, the replacement time of the substrate jig and the printing mask is short, and the printing accuracy is high.High, and can automatically insert, print, and eject printed wiring boardsA printed wiring board printing apparatus can be provided.
[0020]
Next, as in a second aspect of the present invention, it is preferable that the detection means has a camera that images a part of the substrate jig and the print mask.
That is, a part of the substrate jig and the printing mask can be imaged by the camera, and the position and orientation of the substrate jig and the printing mask can be detected.
As a result, the position and orientation of the substrate jig and the printing mask can be detected quickly and reliably.
[0021]
Next, as in a third aspect of the invention, it is preferable that the camera is configured to image an imaging target mark formed on the substrate jig and the printing mask, respectively (see FIG. 8). ).
As a result, the position and orientation of the substrate jig and the printing mask can be detected more reliably.
[0022]
  next,UpThe substrate jig is mounted on a rotatable turntable.ing((See FIG. 5).
  Thereby, continuous printing of a printed wiring board can be performed efficiently.
  That is, a plurality of substrate jigs can be mounted on the turntable. By sequentially rotating the turntable by a predetermined angle, the printed wiring boards set on the plurality of substrate jigs are sequentially supplied to the printing machine. , Can be printed.
[0023]
  Next, the claim4Like the invention described inIn the printed wiring board printing method, which prints on multiple types of printed wiring boards with one printer,
A position detecting step for detecting the position and orientation of the substrate jig and the printing mask after mounting the substrate jig and the printing mask corresponding to the type of the printed wiring board to be printed on the printer;
A calculation step for calculating a positional and orientation shift amount between the substrate jig and the printing mask based on a detection result in the position detection step;
A correction step of automatically correcting a deviation between the substrate jig and the printing mask based on the calculation result in the calculation step;
The substrate jig is mounted on a rotationally symmetric substrate jig mounting portion of a turntable, and the substrate jig mounting portion is always placed on the loading stage and substrate jig by rotating the turntable. It is configured to stand still at the position placed on the position detection stage, printing stage, and discharge stage,
The turntable is adjacent to a carry-in conveyor for carrying the printed wiring board and a carry-out conveyor for carrying the printed printed wiring board,
A printed wiring board is loaded from the carry-in conveyor to the turntable loading stage by a loading robot, and a printed printed wiring board is ejected from the turntable discharge stage to the carry-out conveyor by a discharging robot.There is a printed wiring board printing method characterized by this.
[0024]
  This shortens the replacement time of the substrate jig and printing mask.,markHigh printing accuracyAnd can be done automatically, continuously and quickly without human interventionA method for printing a printed wiring board can be provided.
[0025]
  Next, the claim5As described above, the detection step is preferably performed by imaging a part of the substrate jig and the printing mask with a camera.
  Also in this case, the position and orientation of the substrate jig and the printing mask can be detected quickly and reliably.
[0026]
  Next, the claim6As described above, it is preferable that the detection step is performed by imaging the imaging target marks respectively formed on the substrate jig and the printing mask with the camera.
  As a result, the position and orientation of the substrate jig and the printing mask can be detected more reliably.
[0027]
DETAILED DESCRIPTION OF THE INVENTION
Reference example1
  This exampleA printed wiring board printing apparatus and printing method according to the present invention will be described with reference to FIGS.
  As shown in FIG. 1, the printed wiring board printing apparatus 1 of this example is configured so that printing can be performed on a plurality of types of printed wiring boards 2 with a single printer 11. That is, a substrate jig corresponding to the type of the printed wiring board 2 to be printed out of a plurality of types of substrate jigs for holding the printed wiring board and a plurality of types of printing masks on which a printing pattern is formed. 3 and the printing mask 4 are selected and mounted on the printing machine 11. As a result, a single printing machine 11 is configured to perform printing on a plurality of types of printed wiring boards.
[0028]
As shown in FIG. 1, the printing apparatus 1 includes a position detection unit that detects the position and orientation of the substrate jig 3 and the printing mask 4 after the substrate jig 3 and the printing mask 4 are mounted on the printing machine 11. Twelve.
In addition, the printing apparatus 1 is configured to shift the position and orientation between the substrate jig 3 and the printing mask 4 based on the position and orientation of the substrate jig 3 and the printing mask 4 detected by the position detection unit 12. It has the calculating means 13 which calculates quantity.
Further, the printing apparatus 1 automatically corrects the deviation between the substrate jig 3 and the printing mask by moving the substrate jig 3 according to the deviation amount calculated by the computing means 13. 4 and a correction means 14 for matching the positions and orientations of the four.
[0029]
When printing is performed by the printing machine 11, the printed wiring board 2 is set on the substrate jig 3 as shown in FIG. Then, ink is supplied onto the print mask 4, the print mask 4 is pressed against the printed wiring board 2 by the squeegee 45 (arrow A in FIG. 1), and the squeegee 45 is moved along the surface of the printed wiring board 2 as it is. (Arrow B in FIG. 1) is printed.
As shown in FIG. 1, the printing machine 11 is a so-called offset printing machine in which the printed wiring board 2 is not in contact with the printing mask 4 when the printed wiring board 2 is set. is there.
[0030]
Further, as shown in FIG. 1, the correction means 14 includes a fixed base 141 and a movable table 142 that can move in the left-right direction, the front-rear direction, and the horizontal rotation direction. The substrate jig 3 is mounted on the movable table 142.
[0031]
The position detecting means 12 is configured to detect a position and orientation of the substrate jig 3 and the printing mask 4 by imaging a part of the substrate jig 3 and the printing mask 4 with the camera 121. .
That is, as shown in FIG. 4A, the substrate jig 3 is provided with countersink portions 31 for setting the printed wiring board 2 at four locations. And the corner | angular part 311 of two diagonally facing part 31 among this countersink part 31 is imaged with the said camera 121 (FIG. 3 (A)). Thereby, the position and orientation of the substrate jig 3 are detected.
[0032]
On the other hand, as shown in FIG. 4B, print patterns 41 are formed at four locations on the print mask 4 corresponding to the four countersink portions 31 of the substrate jig 3. And the corner | angular part 411 in the said printing pattern 41 corresponding to the corner | angular part 311 as a specific site | part of the said board | substrate jig | tool 3 is imaged (FIG.3 (B)).
Thereby, the position and orientation of the printing mask 4 are detected.
[0033]
The printing apparatus 1 is configured to print a plurality of types of printed wiring boards with a single printer 11 as described above.
Then, when printing a printed wiring board 2 of a different type from the printed wiring board that has been printed, a substrate jig 3 and a printing mask 4 corresponding to the printed wiring board 2 are mounted on the printing machine 11. To do. Then, the position detection process (steps S3 and S4 in FIG. 2), the calculation process (step S5), and the correction process (step S6) are performed to align the substrate jig 3 and the print mask 4.
[0034]
That is, in the position detection step, the positions and orientations of the substrate jig 3 and the print mask 4 are detected. Further, in the calculation step, the amount of deviation in the position and orientation between the substrate jig 3 and the print mask 4 based on the position and orientation of the substrate jig 3 and the print mask 4 detected in the position detection step. Is calculated. Further, in the correction step, the substrate jig 3 is moved according to the amount of deviation calculated in the calculation step to automatically correct the deviation between the two, and the substrate jig 3 and the printing mask 4. Match the position and orientation of.
The position detecting unit 12 is used in the position detecting step, the calculating unit 13 is used in the calculating step, and the correcting unit 14 is used in the correcting step.
[0035]
Hereinafter, a method for replacing the substrate jig 3 and the printing mask 4 will be described with reference to FIGS.
That is, after removing the substrate jig and the printing mask used so far, the substrate jig 3 and the printing mask 4 to be newly used are mounted on the printing machine 11 (steps S1 and S2 in FIG. 2).
Next, as shown in FIG. 3A, the detection means 12 detects the position and orientation (FIG. 4A) of the substrate jig 3 (step S3). Next, as shown in FIG. 3B, the printing mask 4 is set above the substrate jig 3 in the same manner as in the actual printing state. Then, the detection means 12 detects the position and orientation (FIG. 4B) of the print mask 4 (step S4).
[0036]
Based on the detected position and orientation data of the substrate jig 3 and the print mask 4, the calculation means 13 calculates a deviation amount between the positions and orientations of the both (step S5).
Specifically, based on the detected position and orientation of the print mask 4 (broken line in FIG. 4B) as a reference, the detected position and orientation of the substrate jig 3 (solid line in FIG. 4B) are: The amount of deviation in the left-right direction (X direction), the front-rear direction (Y direction), and the horizontal rotation direction (θ direction) is calculated. The calculated deviation amount in the X direction is ΔX, the deviation amount in the Y direction is ΔY, and the deviation amount in the θ direction is Δθ.
[0037]
In accordance with the calculated deviation amounts (ΔX, ΔY, Δθ), the correction means 14 moves the substrate jig 3 to automatically correct the deviation, and the substrate jig 3 and the printing mask. The position and orientation of 4 are matched (step S6). That is, the movable table 142 on which the substrate jig 3 is mounted is moved by −ΔX in the X direction, −ΔY in the Y direction, and −Δθ in the θ direction.
[0038]
After aligning the substrate jig 3 and the printing mask 4 in this way, after setting the printed wiring board 2 on the substrate jig 3 and performing test printing, it is confirmed that printing is performed accurately. , Continuous printing is started (steps S7 and S8).
[0039]
Next, the effect of this example will be described.
As described above, in the printing apparatus 1, the substrate jig 3 and the printing mask 4 are automatically aligned using the position detection unit 12, the calculation unit 13, and the correction unit 14. Can do. Therefore, alignment of the substrate jig 3 and the printing mask 4 can be performed easily, quickly and accurately.
[0040]
That is, since the printing apparatus has the position detecting means 12, the position and orientation of the substrate jig 3 and the printing mask 4 mounted on the printing machine can be detected quickly and accurately.
Further, since the printing apparatus 1 has the calculation means 13, the amount of deviation between the substrate jig 3 and the printing mask 4 can be calculated immediately and accurately.
Further, since the printing apparatus 1 has the correcting means 14, the deviation between the substrate jig 3 and the printing mask 4 can be corrected quickly and reliably.
[0041]
That is, the printing apparatus 1 immediately and accurately calculates a deviation amount between the substrate jig 3 and the printing mask 4 detected quickly and accurately, and based on the accurate calculation result. The deviation between the substrate jig 3 and the printing mask 4 is corrected quickly and reliably. Therefore, alignment between the substrate jig 3 and the printing mask 4 can be performed with high accuracy in a short time.
[0042]
As a result, the substrate jig 3 and the printing mask 4 can be exchanged accurately in a short time in accordance with the change in the type of the printed wiring board 2 to be printed. Specifically, the replacement of the substrate jig 3 and the printing mask 4 conventionally takes about 1 to 2 hours including alignment, but according to the present invention, it takes about 20 minutes. Exchange and alignment can be completed in a short time. Therefore, according to the printing apparatus 1, a high-quality printed wiring board can be efficiently manufactured.
[0043]
Further, the detection means 12 is configured to detect specific positions of the substrate jig 3 and the print mask 4 with the camera 121 and detect the position and orientation of the substrate jig 3 and the print mask 4. The position and orientation of the substrate jig 3 and the printing mask 4 can be detected quickly and reliably.
[0044]
As described above, according to this example, it is possible to provide a printing apparatus for a printed wiring board with a short printing time and a high printing accuracy.
[0045]
Example embodiment1
  This example is an example of the printing apparatus 10 that sequentially prints the printed wiring board 2 using a rotatable turntable 15 as shown in FIGS.
  That is, as shown in FIG. 5, the substrate jig 3 that holds the printed wiring board 2 is mounted on a rotatable turntable 15, and the printing mask 4 mounted on the printing machine 11 is rotated by rotating the turntable 15. It is configured to be supplied downward.
[0046]
That is, the printing apparatus 10 includes a main body 16 and the turntable 15 rotatably attached to the main body 16 via a rotation shaft 161 as shown in FIG. A printing mask holder 17 for mounting the printing mask 4 is attached to the correction means 14 fixed to the main body 16 so as to be movable in the X, Y, and θ directions.
[0047]
Further, the turntable 15 is provided with substrate jig mounting portions 151 for mounting the substrate jig 3 at four locations that are rotationally symmetric (FIGS. 5 and 6).
As a result, when the turntable 15 is rotated by 90 ° in the direction of arrow R shown in FIG. 5, the substrate jig 3 mounted on the substrate jig mounting portion 151 is mounted on the printing mask holder 17. Sequentially supplied below the printing mask 4.
[0048]
That is, the turntable 15 always stops at a position where the substrate jig mounting portion 151 is always disposed on the input stage 61, the substrate jig position detection stage 62, the printing stage 63, and the discharge stage 64, which will be described later.
Further, as shown in FIG. 6, a substrate jig position detecting means 123 is arranged above the substrate jig position detecting stage 62, and a printing mask position detecting means 124 is arranged above the printing stage 63. Has been placed.
Further, as shown in FIG. 5, the turntable 15 is provided with a carry-in conveyor 18 for carrying the printed wiring board 2 and a carry-out conveyor 19 for carrying the printed printed wiring board 2 next to each other.
[0049]
A method for printing the printed wiring board 2 by the printing apparatus 10 will be described below with reference to FIG.
That is, first, the printed wiring board 2 placed on the transfer board jig 20 is carried into the side of the input stage 61 of the turntable 15 by the carry-in conveyor 18. The loaded printed wiring board 2 is set on the substrate jig 3 on the loading stage 61 of the turntable 15 by the loading robot 181.
Next, the printed wiring board 2 held by the substrate jig 3 is placed on the substrate jig position detection stage 62 by rotating the turntable 15 by 90 °. At this time, the next printed wiring board 2 is set in the same manner as described above on the substrate jig 3 arranged on the loading stage 61.
[0050]
Further, the turntable 15 is rotated by 90 ° to supply the printed wiring board 2 to the printing stage 63. The printing stage 63 is below the printing mask 4 mounted on the printing mask holder 17. Printing is performed on the printed wiring board 2 in the printing stage 63.
After printing, the turntable 15 is rotated by 90 °, and the printed wiring board 2 is sent to the discharge stage 64. The printed wiring board 2 after printing placed on the discharge stage 64 is placed on the transfer board jig 20 on the carry-out conveyor 19 by the discharge robot 191 and discharged.
[0051]
By repeating the above steps, a number of printed wiring boards 2 of the same type are continuously printed.
When the type of printed wiring board 2 to be printed is changed, the substrate jig 3 and printing mask 4 corresponding to the printed wiring board 2 are used instead of the substrate jig and printing mask used so far. Exchange.
A method for exchanging the substrate jig 3 and the printing mask 4 at this time will be described below with reference to FIG.
[0052]
That is, after removing the substrate jig and the printing mask used so far, the substrate jig 3 to be newly used is mounted on each of the four substrate jig mounting portions 151 of the turntable 15 and the printing mask. 4 is mounted on the printing mask holder 17 (steps T1, T2).
[0053]
Next, each substrate jig 3 mounted on the turntable 15 is placed on the substrate jig position detection stage 62 (step T3). Here, the position and orientation of the substrate jig 3 are detected by the substrate jig position detecting means 123 (step T4). The position and orientation of the substrate jig 3 are detected by the substrate jig position detecting means 123 in the same manner for the four substrate jigs 3 to obtain four types of position data (repetition of steps T3 and T4).
On the other hand, the position and orientation of the printing mask 4 are detected by the printing mask position detecting means 124 arranged above the printing stage 63 (step T5).
[0054]
Based on the detected position and orientation data of the substrate jig 3 and the printing mask 4, the computing means 13 computes the amount of deviation between the positions and orientations of the both. The calculation of the amount of deviation is performed as follows.
That is, the virtual position and orientation of the substrate jig 3 when the turntable 15 is rotated by 90 ° and the substrate jig 3 is arranged on the printing stage 63 is determined by the substrate jig position detecting means. It calculates based on the data detected by 123 (step T6).
[0055]
The virtual position and orientation of the substrate jig 3 on the printing stage 63 are calculated for all the four substrate jigs 3. Then, the calculated virtual positions and orientations of the four substrate jigs 3 are averaged (step T7).
Based on the average virtual position and orientation and the position and orientation of the printing mask 4 detected by the printing mask position detecting means 124, the amount of deviation between them is calculated (step T8).
[0056]
The correction means 14 moves the printing mask 4 according to the calculated amount of deviation, thereby automatically correcting the deviation and matching the positions and orientations of the substrate jig 3 and the printing mask 4. (Step T9).
[0057]
  As described above, after the substrate jig 3 and the printing mask 4 are aligned, the printed wiring board 2 is set on each of the four substrate jigs 3 and test printing is performed (step T10). After confirming that printing is performed, continuous printing is started (step T11).
  Others areReference exampleSame as 1.
[0058]
  According to this example, the printed wiring boards 2 set on the four substrate jigs 3 can be sequentially printed by sequentially rotating the turntable 15 by 90 °.
  The printing apparatus 10 is provided with the input stage 61, the substrate jig position detection stage 62, the printing stage 63, and the discharge stage 64. Therefore, it is possible to simultaneously perform the operations of loading, printing, and discharging the printed wiring board 2, or the detection of the substrate jig position and the printing mask position. Therefore, the print processing time can be further shortened.
  Therefore, according to this example, the printed wiring board can be printed more efficiently. Other,Reference example1 has the same effect.
[0059]
Reference example 2
  In this example, as shown in FIGS. 8A and 8B, target marks 33 and 43 as specific parts to be imaged by the camera of the position detecting means are formed on the substrate jig 3 and the print mask 4, respectively. It is an example.
  Others areReference exampleSame as 1.
  As a result, the positions and orientations of the substrate jig 3 and the printing mask 4 can be detected more reliably. Other,Reference example1 has the same effect.
[0060]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a printing apparatus and a printing method for a printed wiring board with a short printing time for a substrate jig and a printing mask and high printing accuracy.
[Brief description of the drawings]
[Figure 1]Reference example1 is an explanatory diagram of a printing apparatus in FIG.
[Figure 2]Reference example1 is a flowchart of a substrate jig and printing mask replacement method in FIG.
[Fig. 3]Reference example1A is an explanatory diagram showing a state when a substrate jig position is detected, and FIG. 1B is an explanatory diagram showing a state when a print mask position is detected.
[Fig. 4]Reference example1A is a plan view of a substrate jig, and FIG. 1B is a plan view of a printing mask.
FIG. 5 is an example of embodiment.1FIG. 2 is an explanatory diagram of a printing apparatus.
6 is a C view of FIG. 5;
FIG. 7 shows an embodiment example.1FIG. 3 is a flow diagram of a method for replacing a substrate jig and a printing mask.
[Fig. 8]Reference example2A is a plan view of a substrate jig, and FIG. 2B is a plan view of a printing mask.
FIG. 9 is a flowchart of a method for replacing a substrate jig and a printing mask in a conventional example.
[Explanation of symbols]
    1,10. . . Printing device,
  11. . . Printer,
  12 . . Position detection means,
  13. . . Computing means,
  14 . . Correction means,
  15. . . Turntable,
    2. . . Printed wiring board,
    3. . . Board jig,
    4). . . Printing mask,

Claims (6)

In a printed wiring board printer configured to print on multiple types of printed wiring boards with a single printer,
The printing apparatus includes position detecting means for detecting the positions and orientations of the substrate jig and the print mask after the substrate jig and the print mask corresponding to the type of the printed wiring board to be printed are mounted on the printing machine. When,
Arithmetic means for calculating a positional and orientation shift amount between the substrate jig and the printing mask based on a detection result by the position detecting means;
Correction means for automatically correcting a deviation between the substrate jig and the printing mask based on a calculation result by the calculation means ;
The substrate jig is mounted on a rotationally symmetric substrate jig mounting portion of a turntable, and the substrate jig mounting portion is always placed on the loading stage and substrate jig by rotating the turntable. It is configured to stand still at the position placed on the position detection stage, printing stage, and discharge stage,
The turntable is adjacent to a carry-in conveyor for carrying the printed wiring board and a carry-out conveyor for carrying the printed printed wiring board,
A feeding robot for feeding the printed wiring board from the carry-in conveyor to the board jig on the turntable is provided between the carry-in conveyor and the carry-in stage, and between the discharge stage and the carry-out conveyor. Is a printing apparatus for a printed wiring board, wherein a discharging robot for discharging the printed printed wiring board from the discharging stage to the carry-out conveyor is installed .   2. The printed wiring board printing apparatus according to claim 1, wherein the detection unit includes a camera that images a part of the substrate jig and the print mask.   3. The printed wiring board printing apparatus according to claim 2, wherein the camera is configured to capture an imaging target mark formed on each of the substrate jig and the printing mask. In the printed wiring board printing method, which prints on multiple types of printed wiring boards with one printer,
A position detecting step for detecting the position and orientation of the substrate jig and the printing mask after mounting the substrate jig and the printing mask corresponding to the type of the printed wiring board to be printed on the printer;
A calculation step for calculating a positional and orientation shift amount between the substrate jig and the printing mask based on a detection result in the position detection step;
A correction step of automatically correcting a deviation between the substrate jig and the printing mask based on the calculation result in the calculation step;
The substrate jig is mounted on a rotationally symmetric substrate jig mounting portion of a turntable, and the substrate jig mounting portion is always placed on the loading stage and substrate jig by rotating the turntable. It is configured to stand still at the position placed on the position detection stage, printing stage, and discharge stage,
The turntable is adjacent to a carry-in conveyor for carrying the printed wiring board and a carry-out conveyor for carrying the printed printed wiring board,
The turntable loading stage is loaded with a printed wiring board from a carry-in conveyor by a loading robot, and the printed printed wiring board is discharged from the turntable discharge stage to a carry-out conveyor with a discharge robot. Printing method for printed wiring boards. 5. The printed wiring board printing method according to claim 4, wherein the detecting step is performed by imaging a part of the substrate jig and the printing mask with a camera . 6. The printed wiring board printing method according to claim 5, wherein the detecting step is performed by imaging the imaging target marks respectively formed on the substrate jig and the printing mask with the camera .

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