JP3363486B2 - Printed circuit board transfer device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer device for transferring an object to be transferred.

[0002]

2. Description of the Related Art A transfer device of this type is disclosed in Japanese Patent Laid-Open No. 3-23137.
It is disclosed in the publication. In this publication, a printed circuit board, which is an object to be conveyed, is transferred to a supply conveyor, transferred to a work table by a reciprocating feed claw, a printed circuit board on the table is transferred to a discharge conveyor, and transferred by a discharge conveyor. Techniques for discharging and discharging are disclosed.

[0003]

However, in the prior art, there is a problem in setting the width of the conveyor, and there are individual variations in the printed circuit board, which is the object to be transferred, so that the board is caught during the transfer. Or something unusual happened. Therefore, when an abnormality occurs during transportation, the abnormality is notified and the apparatus is stopped. However, there is a drawback in that it is difficult to find out where an abnormality relating to conveyance has occurred and it takes time to find the location of the abnormality simply by notifying the abnormality.

Therefore, it is an object of the present invention to shorten the time for finding an abnormal portion when an abnormality relating to the conveyance of an object to be conveyed occurs.

[0005]

Means for Solving the Problems The present invention for this purpose, pre
A work table for performing the component mounting operation in cement substrate, said pre
Upstream conveying means for conveying the printed circuit board from an upstream side working means for performing work cement substrate to the working table, the printed circuit board working in the working table is performed downstream
Side conveying means for conveying to the reflow furnace on the side, a detection sensor for detecting the presence or absence of the printed circuit board at a predetermined position during the conveyance, and the occurrence of an abnormality related to the conveyance of the printed circuit board was judged based on the output of the detection sensor. In case of abnormality and
Upstream from the source or destination of the printed circuit board at the location of the abnormality
Side working means, upstream side conveying means, work table, downstream side carrying
It is also possible to provide a printed circuit board carrying device provided with a display means for displaying in a schematic diagram divided for each of the feeding means and the reflow furnace . In addition, the present invention is for mounting parts on a printed circuit board.
A working table for carrying out the work, an upstream carrying means for carrying the printed board to the working table from an upstream working means for working the printed board, and a work for carrying out the work on the working table. Transfer the printed circuit board to the reflow furnace on the downstream side.
Printing at a predetermined position during transport with the downstream transport means
A detection sensor that detects the presence or absence of the board , and if an abnormality related to the conveyance of the printed circuit board is determined based on the output of the detection sensor, the location of the abnormality is determined by the upstream work device and the upstream conveyance.
The upstream side transport means or the downstream side transport means straddling the feeding means
And the work table, straddling a plurality of upstream side transport means.
Or across the downstream carrier and the reflow furnace
Side working means, upstream side conveying means, work table, downstream side carrying
There is also provided a printed circuit board transfer device provided with display means for displaying a schematic diagram divided for each of the feeding means and the reflow furnace .
Of.

[0006]

According to the structure of the present invention, when the display means determines the occurrence of an abnormality related to the transportation of the printed circuit board based on the output of the detection sensor which detects the presence or absence of the printed circuit board at a predetermined position during the transportation. The location of the error and the location of the error
Set the transfer source or transfer destination of the printed circuit board to the upstream side work means,
Flow side transfer means, work table, downstream side transfer means and riff
It is displayed in a schematic diagram divided into each roaster . According to the second aspect, the display means is up at a predetermined position in the middle of the transport
Based on the output of the detection sensor that detects the presence or absence of the lint board
When it is determined that an abnormality has occurred in the transportation of the printed circuit board, the location of the abnormality is assigned to the upstream side transport means and the upstream side transport means.
Across the upstream side or the downstream side and the work table.
Bull, across multiple upstream transport means, or
A coating device, an upstream transfer means, a work table, a downstream transfer means, and a reflow device are provided across the downstream transfer means and the reflow furnace.
-Display in a schematic diagram divided by furnace .

[0007]

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

In FIG. 2, (1) is a base of the electronic component automatic mounting apparatus.

In FIGS. 2 and 3, (2) is a turntable which is intermittently rotated by a drive source (not shown). At the lower end thereof, a chip-shaped electronic component (not shown) is taken out from a component supply device (not shown). A large number of pad portions (3) are arranged.

(4) and (5) are the suction head section (3)
A fixed chute and a movable chute which form a pair of chutes for holding the printed circuit boards (6) to which the above-mentioned components taken out in step 1 are sequentially mounted in the grooves (7) and (8).
By moving the movable chute (5) toward and away from the fixed chute (4) by a moving mechanism (not shown), the chute width can be varied according to the substrate width of the substrate (6) to be handled.

Reference numeral (9) is an XY as a work table for moving the substrate (6) in the XY direction by driving the X-axis motor (10) and the Y-axis motor (11) while holding the substrate (6) by the chutes (4) and (5). It's a table.

Reference numeral (12) is a backup pin which is vertically installed so as to be removable from a plurality of holes (not shown) formed in the base (13) which constitutes the XY table (9) and which backs up the substrate (6) from the back surface. , The shoot (4),
The substrate (6) is held by the upper portions of the groove portions (7) and (8) of (5) and the backup pin (12).

When the XY table (9) moves in the XY direction, the chutes (4) and (5) are prevented from being affected by the supply conveyor (14) and the discharge conveyor (15) described later.
Is lowered by a vertical movement mechanism (not shown).

(14) is the shoots (4), (5)
A supply conveyer for sending the substrate (6) to the XY table (9) (15) receives the substrate (6) on which the components have been mounted on the XY table (9) and is already placed. It is a discharge conveyor for sending the existing substrate (6) downstream.

The supply conveyor (14) is driven by a drive motor (16) to move a drive pulley (1).
7), the belt (1) hung on the driven pulley (18)
9), the drive pulley (21) moved by the drive of the drive motor (20), and the belt (23) hung around the driven pulley (22), and the substrate (6) can be conveyed separately. Is.

Reference numeral (24) is a transfer for transferring the substrate (6) on the supply conveyor (14) to the XY table (9) and the substrate (6) on the XY table (9) to the discharge conveyor (15). , Is rotated about a shaft (24A) as a fulcrum by a rotating mechanism (not shown) and abuts against the rear end of the substrate (6), and then is rotated by a horizontal moving mechanism (not shown).
It has a pair of feed members (25) horizontally moved along A).

Reference numerals (26), (27) and (28) denote sensors for detecting that the substrate (6) has been conveyed to a predetermined position on the supply conveyor (14). Is reflected by the substrate (6) and is received by the light receiving section.

Reference numerals (29) and (30) are solenoids as stoppers for stopping the substrate (6) at a predetermined position on the supply conveyor (14), and the solenoids (29) and (3).
When the movable parts (31) and (32) of 0) are in the lowered position, they come into contact with the front end of the substrate (6) to regulate the transfer of the substrate (6). A cylinder or the like may be used instead of the solenoids (29) and (30).

Reference numeral (34) is a sensor for detecting whether or not the printed circuit board (6) is transferred from the belt (23) onto the XY table (9) by the transfer (24), and (35) is above the XY table. This is a sensor for detecting whether or not the printed circuit board (6) has been transferred onto the discharge conveyor. The sensors (34) and (35) are also reflective sensors that detect the transfer of the printed circuit board (6) depending on whether the light emitted from the light projecting portion is reflected by the substrate (6) and received by the light receiving portion. is there. The table (9) is on the XY table (9).
There is provided a sensor (36) (see FIG. 12) for detecting whether the printed circuit board (6) transferred to (1) is positioned and fixed by a positioning device (not shown).

In FIG. 4, reference numeral (37) is an operating portion, which is a start key (38) for starting the automatic operation, a stop key (39) for stopping the automatic operation, and a CRT (42) which will be described later. A return key (40) for returning to the screen is provided.

Reference numeral (41) is an interface, and the sensors (26), (27), (28), (34), (3).
5), drive motors (16), (20), solenoids (2
9) (30), an alarm device for notifying an abnormality (3
3), the operation unit (37), the CRT (42), the touch panel switch (43), etc. are connected. Each of these control elements is a C as a control device that controls the mounting device.
It is controlled by the PU (44).

Reference numeral (45) is a RAM as a storage device in which various data are stored.

Reference numeral (46) is a ROM as a storage device for storing a board transfer operation program, and in addition to this, a program relating to the mounting operation is also stored.

The interface (41) is connected to an adhesive application device (47) which is an upstream device and a reflow furnace (48) which is a downstream device, and exchanges various signals with the CPU (44). Be seen. The CPU (44) sends a board request signal requesting that the printed board (6) be discharged to the supply conveyor (14) to the adhesive application device (47), and the adhesive application device (47) outputs the CPU (44). A board carrying signal indicating that the printed board (6) is being discharged and carried to the supply conveyor (14) is sent to. Further, a similar board request signal is sent from the reflow furnace (48) to the CPU (44), and the discharge conveyor (15) is discharging the board (6) from the CPU (44) to the reflow furnace (48). A board ejection signal indicating that is sent.

The interface (41) is further provided with timers (49), (50), (51), (52),
(53) and (54) are connected.

(56) is a power-on switch for turning on the power of the electronic component automatic mounting apparatus having these control circuits, and (57) is a power-off switch for cutting off the power.

The touch panel switch (43) is CR
The touch panel switch (43) is mounted on the screen of T (42) via a mounting tool (not shown). The entire surface of the glass substrate is coated with a transparent conductive film, and electrodes are printed on the four sides. Therefore, when a very small current is applied to the surface of the touch panel switch (43) and the operator touches it, current changes occur in the electrodes on the four sides, and the coordinate values touched by the circuit board connected to the electrodes are calculated. Therefore, if the coordinate value matches the coordinate value in the coordinate value group stored in advance in the RAM (45) as a switch unit for performing the work, the work is performed. In this embodiment, the portion of the screen displayed on the CRT (42) surrounded by the double frame is stored for each screen so as to serve as the switch section.

The sensors (26), (27), (28) and the like detect the presence or absence of the substrate (6) when the carrying operation is in a stationary state, but the combination of the presence and absence (for example, the sensor (26) is "none"). ", Sensor (27) is" none ", sensor (28)
“Present”, ...), the next conveyance operation to be performed is stored in the ROM (46) as a program, the timing for setting each timer is also determined, and the CPU (44) The transport operation is controlled according to the program.

The operation will be described below with the above configuration.

First, when the power is turned on by the power-on switch (56), initialization of the various substrates installed in the electronic component automatic control device constituting a circuit related to control and the like is performed as shown in FIG. The steps are performed for each substrate in the order shown in FIG. The progress status of this initialization is displayed on the screen of the CRT (42).

That is, first, the CPU board on which the CPU (44) is mounted is initialized, and the CRT is being initialized during the initialization.
The screen shown in FIG. 6 is displayed on the screen (42).

Next, the RS232C substrate, which is a serial board for the touch panel switch (43), is initialized and displayed on the CRT (42) as shown in FIG. After that, initialization is performed according to the order of FIG.
Initialization during work is added to the bottom line and displayed on the screen of 2). For example, FIG.
Is displayed.

The input board in FIG. 5 is a CP such as the operation keys in the sensors (26) to (28) and the operation unit (37).
A board to which a signal input to U (44) is connected,
The output board is a CPU (4) such as a solenoid (29) (30).
4) is a substrate to which elements for controlling driving are connected. The memory board is a board on which the RAM (45) is mounted, and the motor board is a board for driving each motor. The recognition board is a board for a camera (not shown) to recognize the positional deviation of the board (6) or the component on the screen obtained by capturing an image of the electronic component (not shown) sucked by the printed board (6) or the suction head unit (3). .

When the above operations cause all the windows in the CRT (42) to be out of display, the initializing work displayed above is scrolled and displayed as shown in FIG. 9, for example. To be done.

FIG. 9 shows the initialization of the motor substrate (D) which is the final initialization work. When this initialization is completed, the screen of FIG. 10 which is the "initial screen" is displayed.
When the "Production operation" switch is pressed on the "Initial screen", the "Production operation" screen for automatically operating the electronic component automatic mounting apparatus as shown in FIG. 11 is displayed, and the start key (38 ) Press to place electronic components on the printed circuit board (6)
The automatic operation to be installed on the vehicle is started. Assuming that there is no printed circuit board in the electronic component automatic mounting device, the transport operation is first started.

First, the CPU (44) uses the sensor (26).
(27) (28) detects that there is no printed circuit board (6) on the supply conveyor (14), and sends a board request signal to the adhesive applying device (47) which is an upstream device. The coating device (47) applies the adhesive to the printed circuit board (6), and when the work is completed, the substrate (6) is discharged and conveyed because the substrate request signal is output. Then, the board transfer signal is sent to the CPU (44) of the mounting apparatus.

Next, when the CPU (44) receives the substrate transport signal, the drive motors (16) (20) start to rotate, and the belt (19) is passed through the drive pulley (17) and the driven pulley (18). ) Rotates, and the belt (23) rotates via the drive pulley (21) and the driven pulley (22).
A timer (49) is set at the same time when the rotation of the motors (16) (20) is started. When the printed circuit board (6) is transferred from the discharge conveyor (not shown) of the coating device (47) onto the belt (19) on the supply conveyor (14), it is conveyed by the belt (19) and the sensor (26) passes through. The substrate (6) to be detected is detected. Then, the CPU (44) informs that the printed circuit board (6) is received by stopping the sending of the board request signal to the upstream device. As a result, the discharge of the printed circuit board (6) from the upstream device is stopped. After the sensor (26) detects, the timer (4
9) will be timed up. The timer (50) is set when the sensor (26) detects the substrate (6).

Next, the printed circuit board (6) is attached to the belt (1
9) is transferred to the belt (23) and conveyed, and after the sensor (28) detects that the substrate (6) has passed, the driving of the drive motor (20) is stopped, and as shown in FIG. Stop on the belt (23).

Next, the feed member (25) of the transfer (24) is lowered by a turning mechanism (not shown). The belt (2) is driven by the reverse drive of the drive motor (20).
3) The upper substrate (6) is returned until it comes into contact with the feed member (25) as shown in FIG. 13, and the reverse drive of the drive motor (20) is stopped. That is, when the substrate (6) returns, the sensor (28) detects it, but by stopping the drive motor (20) after a predetermined time from the time when the detection is started, the substrate (6) causes the feeding member ( 25) and then stop. The timer (50) uses the sensor (2
It is assumed that the time is up after detecting the substrate (6) returned by 8).

Next, the transfer member (25) of the transfer (24) is moved in the horizontal direction by a driving mechanism (not shown) to raise the printed circuit board (6) above the supply conveyor (14) by a vertically moving mechanism (not shown). X in position
The chute (4) and (5) on the Y table (9) are transferred as shown in FIG. The timer (51) is set at the same time when the horizontal movement is started. When the printed board (6) is normally transferred, the sensor (34) detects the board (6) and the timer (51) times up after the sensor (34) is detected.

Next, when the substrate (6) is positioned and fixed on the XY table (9) by a positioning mechanism (not shown), it is detected that the sensor (36) is fixed.
The timer (52) is set when the sensor (34) is detected, and when the substrate (6) is properly positioned, the time is up after the sensor (36) is detected.

Next, when the XY table (9) is lowered by the vertical movement mechanism as shown in FIG. 15, the turntable (2) is intermittently rotated and the suction head section (3) is not shown in the drawing. The electronic component is taken out, and the XY table (9) is moved in the XY direction by the rotation of the X-axis motor (10) and the Y-axis motor (11), and the electronic component is mounted at a desired position on the printed circuit board (6). Is done.

On the other hand, since the printed circuit board (6) on the belt (23) is lost by the transfer (24), the sensors (26), (27) and (28) detect the absence of the circuit board (6) as described above. Then, based on this detection state, the CPU
(44) sends a substrate request signal to the upstream device in the same manner as described above, and in the same manner as described above, the feed member (2) of the belt (23).
The substrate (6) is conveyed so as to come to a position where it abuts against (5), and a substrate request signal is sent to the coating device (47).

Next, while parts are being mounted on the printed circuit board (6) on the XY table (9), the coating device (4
When 7) finishes the coating work on one substrate (6),
The board (6) is discharged and carried to the supply conveyor (14) and a board carrying signal is sent to the CPU (44). Then, similarly to the above, the timer (49) is set, the drive motor (16) is rotated, and the belt (19) is rotated, but the belt (23) remains stopped.
Then, when the printed circuit board (6) is conveyed normally and the sensor (26) detects the circuit board (6), the timer (49)
Expires after the detection of the sensor (26). Also,
The output of the substrate request signal is also stopped, the substrate transfer signal from the coating device (47) is stopped, the timer (50) is set, and the solenoid (30) is activated to move the movable part (3).
2) descends to a position where it regulates the printed circuit board (6) as shown in FIG.

Next, the substrate (6) is further attached to the belt (19).
The sensor (27) detects the substrate when it is transported by
After a predetermined time delay, the motor (16) stops and the substrate (6)
Is stopped by the movable part (32). Sensor (2
7) the movable part (3) after a predetermined time longer than the time when the motor (16) is stopped after the board (6) is detected.
2) is raised. When the conveyance is normally performed as described above, the timer (50) expires after the detection by the sensor (16).

Next, in this state, if the component mounting work on the XY table (9) continues, the board request signal is sent to the upstream device, so when the work of the upstream device is completed, The board (6) is transferred and a board transfer signal is sent to the CPU (44). At the same time, the timer (49) is set, the solenoids (29) and (30) are activated, the movable parts (31) and (32) are lowered, and the motor (16) is driven to rotate the belt (19). . When the substrate (6) is normally transported, the sensor (2
6) detects the substrate (6) and the movable part (31) stops the substrate (6) as shown in FIG. 17, and then the belt (19) stops and the movable parts (31) (32). ) Is raised. After that, the timer (49) expires.

Next, when the component mounting on the printed circuit board (6) on the XY table (9) is completed, the table (9) is finished.
18 rises as shown in FIG. 18, the positioning of the printed circuit board (6) by the positioning mechanism (not shown) is released, and the transfer member (25) of the transfer (24) moves the XY table (9) on the XY table (9) as shown in FIG. The substrate (6) that was on the discharge conveyor (15) and the substrate (6) that was on the belt (23) of the supply conveyor (14) are re-mounted on the XY table (9). Also at this time, the timers (51) and (53) are set at the start of the transfer operation of the transfer (24). If the transfer is normally performed, the timer (51) is detected after the sensor (34) detects the substrate (6). ) Time up, and the timer (53) times up after the sensor (35) detects the substrate (6).

When the substrate request signal is sent from the reflow furnace (48) which is a downstream device, the sensor (35)
When the board (6) is detected by the CPU, the CPU (44) sends a board discharge signal to the reflow furnace (48) and the timer (54).
And the discharge conveyor is driven to discharge and convey the substrate (6).

Next, when the sensor (not shown) of the reflow oven (48) detects that the substrate (6) is received, the substrate request signal from the reflow oven (48) is stopped, so that the CRT ( In 42), it is determined that the transfer is normally performed. When the board request signal is stopped, the discharge of the discharge conveyor (15) is stopped and the board discharge signal is stopped.
After that, the timer (54) will time up.

By repeating the above operation, the automatic operation of the electronic component automatic mounting apparatus is performed. Even if the three substrates (6) are not collected on the supply conveyor (14), X
When the work on the Y table (9) is completed, it is discharged by the discharge conveyor (15), and the printed circuit board (6) on the belt (23) of the supply conveyor (14) is moved to the XY table (9). It is loaded and operation continues.

In this way, when the planned mounting of the components on the board (6) is completed, another type of board (6) is mounted. Therefore, after pressing the stop key (39) to stop the automatic operation, Conveyors (14) (15) and chutes (4)
Perform setup change such as adjusting the width of (5) and press the start key (38) again to start automatic operation.

In this case, if the width of the conveyor (14) is too narrow, the substrate (6) is fed from the coating device (47) as described above.
The CPU (44) which has received the substrate transport signal as described above sets the timer (49), but cannot receive the printed circuit board even if the timer (49) times out. Since the sensor (26) cannot detect 6), the CPU (44) judges that the device is abnormal and stops it, and also the alarm device (33).
Informs the operator of the abnormality. Also, CP
U (44) displays the screen of abnormality occurrence shown in FIG. 1 on the screen of CRT (42).

Next, the operator looks at the CRT (42) and first depresses the switch portion displayed as "alarm release" to release the alarm of the alarm device (33) and read the message on the screen and read the message. After knowing that (6) is an abnormal conveyance, the graphic in the lower part of the screen shows the upstream device (previous process in FIG. 1) in the frame and the supply conveyor (14) in the frame on the previous process side. Is painted in red and displayed (hatched portion in FIG. 1) Applicator (47)
It can be seen that the substrate (6) cannot be transferred between the substrate and the supply conveyor (14). Therefore, the operator goes to the leading portion of the supply conveyor (14) and confirms that the substrate (6) is caught, and confirms the width of the supply conveyor (14), and the width is too narrow, so readjust the width a little.

Next, the operator presses the return key (40) to return the screen of the CRT (42) to the state shown in FIG. 11, and presses the start key (38) to restart the automatic operation. Then, in the same manner as described above, the substrate (6) is transferred from the coating device (47) to the supply conveyor (14) and conveyed, and is positioned on the conveyor (23) as shown in FIG.

Next, if the widths of the chutes (4) and (5) are too narrow, the transfer (24) causes the conveyor (23).
Even if an attempt is made to transfer onto the XY table (9) from above, the transfer cannot be carried out because of a catch. Then, even if the timer (51) set at the same time as the start of the transfer operation times out, the sensor (34) does not detect the substrate (6) and the operation is abnormally stopped, and the alarm device (33) notifies the CRT.
The screen of (42) is displayed as shown in FIG. The hatched frame on the left in FIG. 20 is the supply conveyor (1
The last part of 4) is shown, and the sensor (28) is provided in this part. The hatched right frame in FIG. 20 indicates the XY table (9). The hatched portion in FIG. 20 is also displayed in red on the actual screen.

The operator looks at the CRT screen in the same manner as described above and finds out that the transfer from the supply conveyor (14) to the chutes (4) and (5) is abnormal, and the chute (4) ( Find that the width of 5) is narrow, correct it, and restart as described above. At the time of this restart, if the substrate (6) is placed on the belt (23) in the state of FIG. 13,
The sensor (28) detects the substrate (6) in a stationary state and detects C
The PU (44) determines the operation to be combined with the detection result of the other sensor in the stationary state, and resumes the operation from the transfer operation to the chutes (4) and (5).

Next, when the chute (4) (5) is normally transferred and the sensor (34) detects it as described above, the timer (52) is set and the board (6) is positioned. Positioning is not done properly and the sensor (36)
When the timer (52) times out without performing the detection, the CPU (44) judges that the positioning is abnormal and stops the device and issues an alarm, and the screen of the CRT (42) is displayed as shown in FIG. Is displayed on the display to indicate that an abnormality has occurred in the XY table (9).

For this abnormality, the operator immediately checks the XY table (9) in the same manner as described above, finds and corrects the abnormal portion, and restarts the operation.

Next, if the width of the discharge conveyor (15) is too wide, after the parts mounting on the XY table (9) is completed,
Even if the transfer board (24) tries to transfer the board (6) onto the discharge conveyor (15) from the XY table (9), the board (6) drops and cannot be detected by the sensor (35). The timer (53) set with the start of transfer of 24) has timed up, and the CPU (44) judges that transfer to the discharge conveyor (15) cannot be performed, abnormally stops and issues an alarm, CRT
The screen of (42) is shown in FIG. In FIG. 22, it is shown that an abnormality has occurred in the hatched portion, and the hatched right frame shows the discharge conveyor (15), which is also displayed in red on the actual screen. .

Therefore, the operator checks the space between the discharge conveyor (15) and the XY table (9) in the same manner as described above, and the printed circuit board (6) has fallen. The board (6) is mounted on the sensor (3) of the conveyor (15) by finding and correcting that the width of the conveyor is too wide.
In the position detected by 5), the start key (38) is pressed in the same manner as described above to restart the automatic operation. CPU
If the board (6) determines that the board (6) is on the discharge conveyor (15) based on the detection of the sensor (35), it judges that the board request signal is sent from the reflow furnace (48), (6) is discharged and conveyed. Simultaneously with the start of discharge conveyance, a substrate discharge signal is sent to the reflow furnace (48) and the timer (54) is set. Reflow oven (48)
When the width of the conveyor (not shown) on the side is too narrow to receive the substrate (6), the sensor (not shown) on the reflow furnace (48) side does not detect the substrate (6) even if the timer (54) times up. The board request signal from the reflow oven (48) remains being sent out, and the CRT (42) judges that the board (6) has not been delivered to the reflow oven (48) and stops the automatic mounting device. The screen of FIG. 23 is displayed on the CRT (42). In FIG. 23, it is shown that an abnormality has occurred in the hatched portion, but the frame labeled as post-process shows the reflow furnace (48) which is a downstream device. The actual screen of the hatching is displayed in red.

Therefore, the operator knows that an abnormality has occurred between the discharge conveyor (15) and the reflow furnace (48),
After checking and correcting the conveyor on the reflow furnace (48) side, the substrate is placed again at the position detected by the sensor (35) and the automatic operation is restarted in the same manner as described above. The substrate (6) is discharged, and this time it is delivered to the reflow furnace (48) without being caught.

Next, during setup change such as change of chute width due to change of substrate type as described above, foreign matter adheres to the path of the substrate (6) in the middle of the supply conveyor (14). When the automatic operation is started in the case where the substrate (6) has been left behind or an obstacle has been left behind, for example, the transfer of the substrate (6) from the coating device (47) is normally performed and the sensor (2
6) detected the substrate (6) before the timer (49) timed up, but stopped at a position where it could not be conveyed by the adhering matter or obstacle and was not detected by the sensor (28). If so, the timer (50) is set when the sensor (26) detects that the timer (5)
0) is timed up, the sensor (28) does not detect it. Therefore, the CPU (44) controls the supply conveyor between the position detected by the sensor (26) and the position detected by the sensor (28). When it is judged in (14) that a conveyance error has occurred, the device is stopped, an alarm is issued, and the screen of FIG. 24 is displayed.
Displayed at (42).

In FIG. 24, the hatched frame indicates the position where the printed circuit board (6) is detected by the sensor (27) of the supply conveyor (14) and the sensor (2).
8) shows a part of the belt (23) where the printed circuit board (6) detected is placed. As a result, the operator knows that an abnormality has occurred in the portion after the supply conveyor (14), and by looking at this portion, an obstacle is found, the obstacle is removed, and the operation is restarted.

Further, although the substrate (6) has passed the position detected by the sensor (28) for some reason, but is returned by the reverse rotation of the motor (20), it is detected by the timer (50) before being detected by the sensor (28). 24) is stopped due to an abnormality and the display of FIG. 24 is displayed. In this case, it may be displayed as shown in FIG.

Next, when the substrate (6) is conveyed from the coating device (47) when the substrate (6) is placed on the belt (23) in a stationary state, the sensor (26) is used. If the conveyance of the substrate (6) is hindered for some reason after the position detected by the sensor (26), the timer (50) is set when the sensor (26) detects the substrate (6).
0) time is up, but the sensor (27) has a substrate (6)
Is not detected, the CPU (44) judges an abnormality and stops the apparatus, and displays the screen of FIG. 26 on the CRT (42). Therefore, the operator may use the sensor (26) and the sensor (2
It is possible to know that the conveyance abnormality has occurred at the position of the supply conveyor (14) between 7), and the cause can be investigated for that portion. In order to investigate the cause, place the substrate (6) at the position detected by the sensor (26) before restarting it, and try restarting until the position detected by the sensor (27). You can also find out the cause by seeing what is happening in
Knowing where the anomaly occurs is a big help.

When the automatic operation is performed in accordance with the change of the type of the substrate (6), the conveyance is normally performed, and the passage of the substrate (6) is detected by the sensor (28). Although the return conveyance in the direction was also detected, the feeding member (2
The printed circuit board (6) happened to be in a position where it abuts against 5) and stops.
The substrate (6) is stopped at a position where the light emitted from the sensor (28) passes through the hole formed in the substrate.
If the CPU is not detected, the CPU (44) judges that the hole is detected, stops the device, issues an abnormal alarm, and
On the RT (42), as shown in FIG. 27, the supply conveyor (14)
The frame corresponding to the sensor (28) is displayed in red in the frame divided into three, and a message indicating that the position of the sensor (28) is defective is displayed.

From this screen, the operator finds that the position of the sensor (28) is bad and shifts the position of the sensor (28) and reattaches it. After that, when the automatic operation is restarted with the substrate (6) kept in that position, the sensor (28) detects the substrate (6) and then the substrate (6) is left on the XY table (9). For example, the substrate (6) is transferred onto the XY table (9). This abnormality display is performed for each sensor that detects the substrate, and the frame portion of the graphic corresponding to the sensor is displayed in red. Further, the display color of the abnormality in this case may be displayed differently from that of the abnormality in the substrate transportation.

Next, a measure is taken after the abnormal stop or the like, and the abnormal board is placed at an appropriate position before restarting. For example, the belt detected by the sensor (28). Although one board (6) is placed at the position (23), the position detected by the sensor (26) and the sensor (2)
When the other substrate (6) is placed at a position not detected by either sensor between the position detected by 7) and the position detected by 7), the CPU (44) sends a substrate request signal to the coating device (47).
And the substrate (6) is transported in the same manner as described above, but before the sensor (26) detects the substrate (6) transported by the coating device (47), the sensor (27). When the board (6) placed at a position where the sensor does not detect the stationary position is detected, the CPU (44) determines that there is a surplus board at an indefinite position, stops the apparatus, notifies the abnormality, and notifies the CRT ( The screen of FIG. 28 is displayed in 42).
At this time, the display color of the abnormal portion of the graphic hatched in FIG. 28 may be displayed in a color different from the above-described normal conveyance abnormality or the abnormality due to the deviation between the hole position and the sensor position.

Even if some abnormality occurs on the side of the supply conveyor (14), while the discharge conveyor (15) is performing the discharging operation, only the discharging operation is performed until the end.
If a conveyance abnormality occurs during this ejection as well, the ejection conveyor (15) is stopped at that point and the CRT (42) screen displays both conveyance abnormalities as shown in FIG. 29, for example.

Incidentally, FIGS. 1 and 20 to 29 of this embodiment.
FIG. 1, FIG. 20, FIG. 24 to FIG. 26, FIG. 28, and FIG. 2, although the part corresponding to the supply conveyor is divided into three frames in the graphic that is a schematic diagram showing each conveying part at the bottom of the screen of FIG.
In the case of the display of 9, the entire frame may be displayed in color as one frame, or the frame may be displayed on the belt (19) and the belt (23).
May be divided into two parts and displayed. Alternatively, the frame of the graphic may not always be fixed and displayed, and the frame may be divided and displayed depending on the case.

Further, although the present embodiment describes the electronic component automatic mounting apparatus, for example, the coating device (47) is replaced with an electronic component automatic mounting apparatus and the upstream device is a printing machine for screen-printing the solder paste on the printed circuit board. Even if the downstream device is used as an electronic component automatic mounting device, a coating device (48)
If the conveyance route of No. 1 has the same configuration as that of the present embodiment, the graphic at the time of abnormal stop of the CRT screen may be displayed in the same manner. In addition, automatic electronic component mounting device or coating device (4
Regardless of whether it is 8) or not, even in an apparatus having a transport path different from that of the present embodiment, the portion of the transport is divided by the place where the substrate detection sensor is present and displayed by a frame or the like. May be displayed in different colors to display the place where the abnormality has occurred.

Although the present embodiment has been described with respect to the case of carrying a printed circuit board on which electronic components are mounted, the present invention is not limited to the printed circuit board and can be applied to any object carried by a conveyor or the like.

[0073]

As described above, in the invention according to claim 1 of the present application, the display means is mounted on the printed circuit board at a predetermined position during transportation.
Printed circuit board based on the output of the detection sensor that detects the presence or absence
If an abnormality related to the transportation of the
Source or destination of printed circuit boards at locations and abnormal locations
Upstream side transport means for performing work on the printed circuit board, upstream side transport
Work table for feeding parts and mounting parts on printed circuit boards
The model is divided into
Since it is displayed on the formula diagram, the work table can be
Through a long printed circuit board conveyance path through the reflow furnace.
However, not only the abnormal part but the print base of the abnormal part
It is possible to check at a glance the source or destination of the board,
It can reduce the trouble of finding the usual place
The transfer source or transfer destination of the printed circuit board
Prompt for inspection work as well, and perform inspection work when an abnormality occurs
Can be performed more reliably. In addition, claim 2 of the present application
According to the invention according to, the display means, when it determines the occurrence of an abnormality related to the conveyance of the printed circuit board based on the output of the detection sensor for detecting the presence or absence of the printed circuit board at a predetermined position during the conveyance , Perform predetermined work on the printed circuit board
Upstream across the upstream working means and upstream conveying means
Side transfer means or downstream transfer means and parts mounted on the printed circuit board.
Multiple upstream transports across the work table for dressing work.
Across the feeding means, or on the downstream side feeding means and the reflow furnace
The upstream side working means, the upstream side conveying means, the work table, the downstream side conveying means and the reflow furnace are displayed in a schematic diagram divided into sections, so that the upstream side working means is changed to the working table.
Of the printed circuit board in the long conveyance path through the reflow furnace
The location of the abnormality can be seen at a glance, and the trouble of finding the abnormality can be reduced . Moreover, the presence or absence of printed circuit boards
Conveyance abnormality can be judged based on the output of the detection sensor that detects
This is done so if a conveyance error occurs, the print
Check the board for the location of the abnormalities shown in the schematic diagram.
And can be easily found by. In addition, the abnormality display
Since it is displayed at the same time across adjacent locations in the route,
The cause of the abnormality can also be confirmed by checking each part.
It can be easily confirmed.

[Brief description of drawings]

FIG. 1 is a CRT screen view showing an abnormality occurrence.

FIG. 2 is a perspective view of an electronic component automatic mounting device to which the present invention is applied.

FIG. 3 is a perspective view of essential parts of an electronic component automatic mounting apparatus to which the present invention is applied.

FIG. 4 is a block diagram of a control circuit of the present invention.

FIG. 5 is a diagram showing a sequence of substrate initialization of the electronic component automatic mounting apparatus.

FIG. 6 is a CRT screen view showing a state of substrate initialization.

FIG. 7 is a CRT screen view showing a state of substrate initialization.

FIG. 8 is a CRT screen view showing a state of substrate initialization.

FIG. 9 is a CRT screen view showing a state of substrate initialization.

FIG. 10 is a diagram showing an initial screen of a CRT.

FIG. 11 is a diagram showing a production operation screen of a CRT.

FIG. 12 is a diagram showing a substrate transfer operation.

FIG. 13 is a diagram showing a substrate transfer operation.

FIG. 14 is a diagram showing a substrate transfer operation.

FIG. 15 is a diagram showing a substrate transfer operation.

FIG. 16 is a diagram showing a substrate transfer operation.

FIG. 17 is a diagram showing a substrate transfer operation.

FIG. 18 is a diagram showing a substrate transfer operation.

FIG. 19 is a diagram showing a substrate transfer operation.

FIG. 20 is a CRT screen view showing the occurrence of an abnormality.

FIG. 21 is a CRT screen view showing the occurrence of an abnormality.

FIG. 22 is a CRT screen view showing the occurrence of an abnormality.

FIG. 23 is a CRT screen view showing the occurrence of an abnormality.

FIG. 24 is a CRT screen view showing the occurrence of an abnormality.

FIG. 25 is a CRT screen view showing the occurrence of an abnormality.

FIG. 26 is a CRT screen view showing the occurrence of an abnormality.

FIG. 27 is a CRT screen view showing the occurrence of an abnormality.

FIG. 28 is a CRT screen diagram showing the occurrence of an abnormality.

FIG. 29 is a CRT screen view showing the occurrence of an abnormality.

[Explanation of symbols]

(6) Printed circuit board (object to be transported) (14) Supply conveyor (15) Discharge conveyor (24) Transfer (42) CRT (display means) (44) CPU (display means)

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-63-8150 (JP, A) JP-A-2-221011 (JP, A) JP-A-3-192013 (JP, A) JP-A-3- 163818 (JP, A) JP 60-247991 (JP, A) JP 4-201938 (JP, A) JP 64-33564 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) H05K 13/00-13/04 B65G 43/00-43/10

Claims (2)

(57) [Claims] 1. A work table for mounting a component on a printed circuit board, an upstream side transporting unit for transporting the printed circuit board from an upstream side working unit for working the printed circuit board to a working table, and a work for the working table. Downstream transfer means for transferring the applied printed circuit board to a reflow furnace on the downstream side, a detection sensor for detecting the presence or absence of the printed circuit board at a predetermined position during the transfer, and transfer of the printed circuit board based on the output of the detection sensor. When it is determined that an abnormality has occurred, the location where the abnormality occurs and the source or destination of the printed circuit board at the location where the abnormality occurs are classified according to the upstream working means, the upstream carrying means, the work table, the downstream carrying means, and the reflow furnace. A printed circuit board carrying device, characterized in that it is provided with a display means for displaying the schematic diagram. 2. A work table for mounting a component on a printed circuit board, an upstream side transport means for transporting the printed circuit board from the upstream side work means for working the printed circuit board to the work table, and the work for the work table. Downstream transfer means for transferring the applied printed circuit board to a reflow furnace on the downstream side, a detection sensor for detecting the presence or absence of the printed circuit board at a predetermined position during the transfer, and transfer of the printed circuit board based on the output of the detection sensor. When it is determined that an abnormality has occurred, a plurality of upstream-side conveyances are carried out across the upstream-side working device and the upstream-side conveying means, and the upstream-side conveying means or the downstream-side conveying means and the work table at the abnormality occurrence location. The upstream working means, the upstream carrying means, the work table, the downstream carrying means, and the reflow furnace are divided for each unit or across the downstream carrying means and the reflow furnace. A printed circuit board transporting device, comprising display means for displaying the divided schematic diagram.