JPH03133803A - Part feeding device - Google Patents

Abstract

PURPOSE:To improve working efficiency by a method wherein, in a feeding device for a part for a printed substrate contained in a tray on a pallet, part information classified by a shelf number for a new part for a printed substrate is compared with that for an old part for a printed substrate, and when they are different from each other, the pallet is protruded. CONSTITUTION:An RAM 63 contains an old and a new kind of executive device memory, and the old kind of executive device memory contains a kind of parts classified by a shelf number heretofore contained in a pallet data memory during exchange of a kind of a device. Meanwhile, part quality data regarding a printed substrate mounted from now on is stored in the new kind of executive device memory. Through operation of a keyboard 69 during exchange of a substrate, comparison between the contents of the new and old kind of executive device memories is performed. When data of the one memory is different from that of the other memory, the pallet is protruded through operation of a pallet protruding means. This constitution reduces a man-hour to research a necessary pallet.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Industrial Application Field The present invention provides a method for attaching parts by preparing a plurality of pallets corresponding to plural types of parts and storing trays on which parts of the same type are placed. The present invention relates to a component supply device in which various required components are loaded in a stocker in multiple stages according to the printed circuit boards to be mounted by the device, and various required components are taken out from a tray and supplied to the component mounting device.

(BACKGROUND) This type of parts supply device is fully described in the specification and drawings attached to Japanese Patent Application No. 1-8380 previously filed by the present applicant.

According to this prior art, when changing the type of printed circuit board to be handled, the pallet that needs to be replaced is searched for, and then the drawer is pulled out and the pallet of another type is replenished.

(8) Problems to be Solved by the Invention However, the above-mentioned prior art has a disadvantage in that in order to find a pallet to replace, it is necessary to check how many tiers the pallet is in and pull it out, which is time-consuming.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to reduce the time and effort required to search for a pallet that needs to be replaced in a stocker when changing the type of printed circuit board.

(d) Means for Solving the Problems For this reason, the present invention provides a plurality of pallets for storing trays on which parts of the same type are placed, respectively, corresponding to a plurality of types of parts, and the parts are mounted by a parts mounting device. The components are loaded in multiple stages in the stocker according to the printed circuit boards to be installed, and various required components are taken out from the tray and supplied to the component mounting device.In the component supply device, components are then mounted. a first storage means capable of writing information on the type of components to be stored on the pallet for each stage number of the stocker according to the type of the printed circuit board; a second storage means in which type information of parts that can be stored on the pallet can be written for each stage number of the stocker according to the type; a protruding means for projecting the pallet from the stocker; Control means for comparing the product type information written in the first storage means with the product type information written in the second storage means and operating the ejecting means to eject the pallet corresponding to the stage number if they are different. It has been established that

Further, the present invention provides a first storage medium in which type information of components to be stored on the pallet can be written for each stage number of the stocker in accordance with the type of the printed circuit board to which components are to be mounted next.
and a second storage means capable of writing type information of the components to be stored on the pallet for each stage number of the stocker according to the type of the printed circuit board on which components have been previously mounted. , a protruding means for protruding the pallet from the stocker, and a comparison between the product type information written in the first storage means and the product type information written in the second storage means for each stage number of the stocker. a comparing means, and if the comparison means shows that the product types are different, the ejecting means is actuated to eject the pallet corresponding to the stage number, and when the product information is not written in the first storage means, the ejecting means and a control means for inactivating the system.

(*) According to the structure of claim 1, the comparison means is the first
The control means compares the product type information written in the storage means and the second storage means for each stage number, and if the products are different as a result of the comparison by the comparison means, the control means operates the ejecting means to eject the pallet corresponding to the stage number. let

According to the structure of claim 2, the comparison means is the first
The control means compares the product information written in the storage means and the second storage means for each stage number, and if the products are different based on the comparison by the comparison means, the control means operates the ejecting means to eject the pallet corresponding to the stage number. , the ejecting means is not operated if the product type information is not written in the first storage means.

(f) Example An embodiment of the present invention will be described below based on the drawings.

In FIGS. 1 to 3, (1) is a tray component supply device that supplies electronic components (3) placed on a tray (2) to a component mounting device (4).

The tray component supply device (1) will be explained.

(5) is a stocker section, each of which has 4 pallets (6).
Stocker 1 (7) and stocker 2 (8) fully loaded on the 0th stage
) are arranged side by side. Pallet (6) has tray (2)
One or more are fixedly placed in a positioned state. A safety door (9) that is opened and closed when an operator replaces the pallet (6) is attached to the stocker section (5). The door (9) is made transparent or translucent so that the stocker part (5) can be seen.

Opening and closing of the safety door (9) is detected by a door sensor (10). (11) is the elevator section, and the stocker section (5)
0. Pull out the pallet (6) and move it upwards to the parts take-out part (12).
The part (3) placed on the transfer shuttle section (
13).

Next, the elevator section (11) will be explained.

(14) is a drawer table on which the pallet (6) is pulled out from the stocker 1 (7) and placed thereon;
The lifting motor (1) is attached to the nut (15) attached to the
A ball screw (17) rotated by the motor (16) is fitted, and the pull-out table (1
4) is guided by the guide rod (18) (1B) and moves up and down. A drawer table (14) is also provided in the stocker 2 (8), and the aforementioned mechanism for raising and lowering the table (14) is also provided in each table (14). Follow,
The two tables (14) can be raised and lowered independently.

As shown in FIG. 4, the drawer table (14) is provided with a drawer claw (20>) attached to a drawer belt (21).The belt (21) is attached to a drawer driven pulley (22) ) (22) and the drawer drive pulley (23), and the drawer motor (24)
As a result, the drawer claw (20) is guided by two parallel drawer guide shafts (25) (25) to reciprocate.

The pull-out claw (20) has a push-back piece (27) that engages with the end face of the pallet (6) and pushes back the pallet (6>), and a support shaft (28) provided on the push-back piece (27). It rotates about the fulcrum and engages with the rising part of the end face of the pallet (6), and the pallet (
6) and a drawer piece (29>) for pulling out.

The drawer table (14) further includes a stopper (30).
, pallet detection sensor (31) and vertical movement cylinder (3
2) is installed.

The stopper (30>) extends vertically with a cutout only at the part where the pallet (6) stored in one stage of stocker 1 (7) or stocker 2 (8>) is pulled out by the pull-out claw (20). It has a plate-like shape, and has a pallet (6
> is the pull-out table (14) and the elevator part (1) outside the upper body.
1) Prevents it from being extruded.

The pallet detection sensor (31) is installed at a position laterally shifted from the stopper (30), and the pallet detection sensor (31)
It detects whether the pull-out claw (20) is pushed into the stocker 1 (7) or the stocker 2 (8) to a position where it can be engaged, and in this embodiment, a reflective photo sensor is used. .

An opening/closing stopper (34) is attached to the vertically movable rod (33) of the vertically moving cylinder (32) so as to be laterally offset from the attachment position of the stopper (30). When the cylinder (32>) is raised, the opening/closing stopper (34) is positioned as shown in FIGS. 4 and 6, and the pallet (6) is
When the cylinder (32) descends, the pallet (6
) can enter.

The rod (33) is connected to the opening/closing stopper (3) in FIG.
4), and by moving upward, it serves to push up the drawer piece (29) against the biasing force of the spring 35> when the drawer claw (20> is in the drawer position as shown in Fig. 9). When the rod 33) is lowered, the drawer piece (29) is rotated downward by the biasing force of the spring (35).
The pull-out claw (20) will close.

In Fig. 5, the parts storage areas (36) where parts are placed are arranged in multiple rows and columns on the tray (2), and the pull-out direction of the pallet (6) is the X direction, and the direction perpendicular thereto. If is the Y direction, then the parts storage area (36) in the X direction is...
The arrangement of parts storage areas (36) in the Y direction will be called columns. In this arrangement of parts storage (36), the first column is the far right side in Figure 5, and the first row is the fifth
Assume that it is on the upper side of the diagram.

In Fig. 5, (37A) is the in-process mark, and the parts in the tray (2) are still in the in-process state when they are placed in the stocker 1 (7).
), when the pallet (6) is completely supplied to the stocker 2 (8), the pallet (6) is placed in the part storage area (36) one place before the part (3) to be taken out next. The in-process mark (37B> is also placed in the parts storage area (36) at the head of the column where the in-process mark (37A) is placed.

(41) is a tray in-process mark placement part on which the in-process mark (37C) is placed to indicate the in-process status of the tray (2) of the supplied pallet (6); 37C) are provided. Four mark placement locations (42) are provided. By doing this, the pallet (6)
The tray (2) placed above can identify up to four trays in progress, and the sensor (37C) placed in a position corresponding to each tray (2) detects the in-process mark 40) to detect which tray (2) is in progress. In addition, work in progress mark (37A) (37B)
(37C) are all the same, but they may be of different sizes and shapes as long as the sensor (40) can determine whether there is a mark at the placement location.
37A) (37B) (37C) are made of metal and P&P
It is detected by a tray in-process detection sensor (40) which is a proximity sensor attached to the head (39). however,
It is also possible to use a photo sensor as the detection sensor (40) and use a non-metallic work mark.

Furthermore, the mark (37C) has four mark placement locations (
42), but in addition to being placed on the military, it may also be attached removably or attached with a magnet.
Instead of placing the mark in the same place as the mark (37C), there is a structure in which a plate-like or rod-like member with only one part made of a metal part of the same size as the mark (37C) is slid, so that the metal part is the same as the mark placement place (42). It is also possible to have the sensor (40) detect this when the tray (2) is in the position and determine which tray (2) is in the process.

Next, the component extraction section (12) will be explained. In Fig. 2, the P&P head (39) has two suction nozzles (44) that suction the component (3) from the tray (2), each of which is mounted so that it can move up and down independently, and the Y-axis belt (45). ) is installed. The belt (45) is connected to the Y-axis motor (46
) and a driven pulley (47) attached to the drive pulley (47) and the driven pulley (4
8), and by the rotation of the Y-axis motor (46), the P&P head (39) is guided by the Y guide rail (49) via the belt (45) and moves in the Y direction.

(50) is the driving pulley (47) and the driven pulley (48).
) and a Y guide rail (49) are attached to the X-axis belt (51).

The X-axis belt (51) is stretched between a drive pulley (53) and a driven pulley (54) attached to the X-axis motor (52), and rotates around the X-moving body ( 5
0) is guided by the X guide rail (55)<55) and moves in the X direction.

Therefore, the P&P head (39) moves in the XY
Move and pick up the part (3) at any position with the suction nozzle (44)
The component (3) can be taken out by suction and moved further to be transferred to the component receiver (56) of the transfer shuttle section (13).

The component receiver (56>) is located in the transfer shuttle section (13) at a position where the component (3) picked up by the suction nozzle (44) is placed by a cylinder drive source (not shown) and the mounting nozzle (4) of the component mounting device (4). Part (3) between the part suction position of 57>
It moves back and forth while being placed almost horizontally. The parts receiver (5
Up to three parts (3) stored in the tray (2) can be placed on the tray (2) by the suction nozzle (44) on the 6).
The individual parts (3) are placed at positions where three mounting nozzles (57) can be picked up simultaneously at the same intervals as the mounting nozzles (57), as shown in FIG.

(59) is an operation panel, which includes a pallet replenishment switch (60>) that is pressed by the operator to notify the operator of the completion of the exchange of pallets (6) and (7).

In FIG. 17, (62) is a CPU, which supplies tray components based on component request information from the component mounting device (4), information from various switches, sensors, etc., and information stored in the RAM (63). Controls the operation of the device (1). (64) is a ROM that stores programs related to the operation of the CPU (62). (65) is the pass line,
CPU (62), RAM (63), ROM (
64) and I10 interface (66). (67) is a CRT connected to the pass line (65) via a CRT interface (68), on which various data can be displayed. (69) is the operation panel (59)
The keyboard is equipped with a numeric keypad (70) for entering numbers, a CRT (67), and a cursor on the screen (71).
cursor key (72) to move the cursor key (72), SET key (73)
), CRT key (7) to display the CRT (67) screen.
4), alphabet key (75) to input alphabet characters, NEXT key (76), BACK key (7
7) etc.

The RAM (63) contains model data and model library.
As shown in Figure 18, the 0 model data, which is stored as well as the old execution model memory, new execution model memory, total number of parts memory, and pallet data memory, is prepared for each model of the board (61). The part type is stored for each stocker stage number, and each model data includes P
RO, NO, and FILE NAME (model name) are attached.

Variety library (TRAY DATA LIBRAR
Y) is made up of data groups as shown in FIG. 19 for each part type, and each data in FIG. 19 will be explained.

PALLET MATRIX shows the number of component placement columns and component placement rows when the tray (2) is fully loaded with components (3), as well as the number of component placement columns and component placement rows in the tray (2).
) is a pallet matrix showing the number of pallets (6) placed on the pallet (6). Therefore, according to FIG. 19, one pallet is placed, the number of component placement columns is 9, and the number of component placement rows is 5.
You can see that it is a column.

TRAY 0RIGIN indicates the origin position of each tray (2) from the origin of pallet (6) for each tray (2). PARTS PITCH indicates the part (3) placed at the end of the origin of tray (2). ) is data consisting of 5IDE representing the position of the center of the tray (2) relative to the origin, and BETWEEN representing the distance between the parts (3). PAR
TS 5IZE represents the large part (3). The contents of these product library can also be viewed on the CRT (67) screen.

In the old execution model memory, parts types are stored for each stocker stage number as shown in FIG. 20, but when switching models, the parts types previously stored in the pallet data memory are stored.

When changing the model, the new model execution memory stores the FI that corresponds to the board (61) on which you are going to mount parts.
The model data of LE NAME can be stored as shown in FIG. 21, for example.

The total number of parts memory contains the parts placed on the pallet (6).
The maximum number of items 3) is stored for each stocker stage number as shown in FIG.

The contents of the pallet data memory are displayed on the CRT screen as shown in FIG. 23, and the following data is stored for each stocker stage number.

In other words, what is displayed in the TYPE column is the part type;
B (XN, YN) displays a take-out matrix indicating the in-process position of part (3). The in-process position of part (3) is the placement position of the next part (3) to be taken out, and the tray number indicates which tray (2) the part (3) is placed on. The parts storage area is represented by the position of the matrix. When the parts (3) are ejected by the P&P head (39), the ejection matrix is changed in a predetermined order so that the parts (3) can be ejected in a predetermined order. In this embodiment, from the tray (2) with tray number "1", the parts (3) in the first column are taken out in order from the part (3) at the intersection of the first column and the first row, and when the first column is finished, the second part is taken out. The trays are taken out from the beginning of the row, and each time tray (2) is finished, the tray (2) with the next tray number is taken out in the same order.

What can be displayed in the MAXB (XN, YN) column is the palette matrix described above.

What is displayed in the WORK column is the number of parts remaining, and
What is displayed in the column is pallet protrusion data indicating that the pallet (6) is protruded. As for the pallet protrusion data, r E is stored only in the stocker stage number from which the pallet (6) is protruded.

The stocker stage numbers of stocker 1 (7) are 1 to 40, and the stocker stage numbers of stocker 2 (8>) are 41 to 80.

Next, the component mounting device (4) will be explained. In FIG. 1, (78) is a mounting head to which three mounting nozzles (57) are attached. A nut (79) attached to the head (78) is fitted into a pole screw (81>) which is rotated by the head motor (80).
80), the mounting head (78) is guided by the linear guide (82) and moves in the Y direction.

(83) is a tape-shaped part (3) attached to the installed nozzle (57)
(84) is a tape component supply unit that supplies components (
3) It is a recognition camera that recognizes. (85) is a part (
3) and moved in the Y direction (7).
8) is a component mounting section for mounting the component (3) on the printed circuit board (61).

(87) is a mounting table on which the printed circuit board (61) conveyed to the supply conveyor (88) is placed, and a nut (not shown) to which a ball screw (90) rotated by a motor (89) is fitted is attached. It is being The table (8
7) is a linear guide (
91) and moves in the X direction.

Therefore, the mounting nozzle (57) can mount the component (3) at any position on the printed circuit board (86) placed on the mounting table (87).

In FIG. 17, the component mounting device (4) is provided with an out-of-stock memory (92) and a material-out mode changeover switch (93). In the out-of-stock memory (92), parts types for which the parts (3) have not been mounted due to out-of-material are sequentially stored together with mounting information. The changeover switch (93
) is an abnormal stop mode in which an abnormal stop occurs when the placement device requests a part type that is out of material and is informed by the supply device (1) that it cannot be supplied, and a mode in which it is placed after the normal placement operation as a postponement. The device is configured to switch between two reinstallation modes. (94) is a warning light indicating that part (3) could not be installed due to out of material.

The above-mentioned model data is set in advance for each model of the board (61). The settings will be explained below.

The product type library can also be set on the CRT screen, but here it is assumed that the settings for the various types of parts (3) that can be used have been completed and are stored in the RAM <63). First, while pressing the CRT key (74),
0” key is pressed, the FILE shown in Figure 24 is displayed.
A NAME LIST screen appears on the CRT (67). In this state, PRO.

FILENAME is already displayed in NO, 'lJ, and "2", indicating that the model data of this FILENAME has already been set.

When setting the model data of a new model that can be expressed as 'PC-3J' as FILENAME, move the cursor (71) to the FILE NAME field of PRO, NO, 3 using the cursor keys (72) and press the alphabet keys (7).
5) and key in "rpc-3" using the numeric keypad (70). Then, when the SET key (73) is pressed, a model data screen appears.

Here, move the cursor (71) to the TYPE column and key in the number of the part type for each stage number, resulting in a screen as shown in FIG. 18. Do not enter numbers for unused rows.On this screen, only up to 10 row numbers can be displayed, but by pressing the NEXT key (76), you can enter numbers.
Screens from 1 to 20 rows can be displayed. By pressing the NEXT key (76), the next 10 screens are sequentially called up, and by pressing the BACK key (77), the previous 10 screens are called up. In this way, by pressing the SET key (73) after completing the key-in of the part type, the key-in data is stored in the RAM (63).
The data is stored in , and the setting of model data is completed.

The operation of the above configuration will be explained below.

When changing the model of the printed circuit board (61) on which parts have been mounted so far and attempting to mount components on a new model of printed circuit board (61), the tray component supply device (1)
It is necessary to change the pallet (6) on which the parts (3) stored in the stocker part (5) of the machine are placed to match the new model board (61). Regarding the model switching operation, it is assumed that the storage state of the component (3) in the stocker section (5) when the component installation of the previous model is completed is completely displayed on the CRT screen as shown in Figure 23. This will be explained according to the flowchart shown in FIG.

If you first press the CRT key (73) and then press the "0" key, the FILE NAME shown in Figure 26 will be displayed.
LIST is displayed on the CRT (67) screen. Move the cursor (71) to PRO, NO, "3" and set
When the key (73) is pressed, the state of the stocker section (5), which had previously stored parts (3) for parts mounting, is changed to the second state.
From the pallet data memory shown in FIG. 3, the part type for each stocker stage number is stored in the old execution model memory, and the model data of the new model PC-3 can be stored in the new execution model memory.

Next, the cpU (62) confirms that the contents of the new execution model memory for stocker stage number 1 are not unused, and compares the parts types in the new execution model memory and the old execution model memory.

CP because the component types of both memories are "10" and are the same.
U (62) leaves the contents of stage number 1 of the pallet data memory unchanged and looks at the component type of stocker stage number 2 of the new execution model memory. Since stocker stage number 2 is unused, the contents of stage number 2 in the pallet data memory are not changed and stage number 3 is checked.

In stage number 3, the part type stored in the new execution model memory is "1", and the data in both memories is different, so the 25th
According to the flowchart in the figure, "1" is stored in the TYPE memory area of stage number 3 of the pallet data memory. Then, palette matrix 1 (9, 5) is stored in the memory area of MAXB (XN, YN) from the product library of "component model r1". Further, the CPU (62) sets the pallet protrusion data rE, in the memory area of P, and sets the remaining number of parts r□, in the memory area of WORKS.

Then, the CPU (62) causes the pallet (6) of stocker stage number 3 to be ejected as follows. First, the lift motor (16) rotates, and the ball screw (17) rotates, whereby the drawer table (14) is raised or lowered along the guide rods (18) (18) via the nut (15). and stops at the position of the pallet (6) of stage number 3.

Then, the drawer motor (24) rotates, and the drawer claw (20) moves to the stocker 1 (
7) side along the guide shafts (25) (25).

Then, the tip of the drawer piece (29) engages with the end face of the pallet (6), and the pallet (6) is projected from the stocker portion (5) as shown in FIG. 15.

Next, the CPU (62) performs the same operation as described above for stocker stage number 4, but since the part type of the new execution model memory is "20" and is different from the old execution model memory, the CPU (62) performs the same operation as described above for stocker stage number 4. The contents of are changed in the same way as for stage number 3, and the pallet (6) of stage number 4 is projected.

The same operation as described above occurs from stocker stage number 5 onwards.
It will be carried out until When switching to a new model, the stocker section (5) is in a state in which all pallets (6) to be replaced (6) are protruded.

Thereafter, the operator pulls out the protruding pallet (6) and stores the pallet (6) of the parts type according to the model data of the new model in the fully pulled out stocker stage.

At this time, if all the trays (2) placed on the pallet (6) are fully loaded with parts (3), the operator places an in-progress mark on the tray in-progress mark placement section (41). (37C) is not placed, but the pallet (6
) to the stocker section (5), place the in-process mark (37C) on the mark placement location (42) indicating the in-process tray (2) in the storage section (41). At the same time, the next part to be taken out from the tray (2) in progress (
There is a work in progress mark (37A) in the parts storage area (36) just before 3).
) is placed, and a mark (37B) is also placed at the head position (end) of the column where the mark (37A) is placed. If the parts storage area (36) immediately before the part (3) to be taken out next is at the head of the column, only the mark (37B) is placed at the head position. In addition, when the operator pushes the pallet (6), the stopper (30) and the opening/closing stopper (34) which is moved upwardly by the cylinder (32) and positioned above and below the notched portion of the stopper (30). This prevents the pallet (6) from entering the elevator section (11).

Next, the operation of checking whether each replaced pallet (6), (6), etc. has been pushed to a predetermined position will be explained. First, when the replacement of pallets (6) (6)... is completed, the operator presses the pallet replenishment switch (6).
Press 0).

Then, the CPU (6) detects that the switch (60) is turned on.
2), the pallet protrusion data r E is stored in stage number 1 of the pallet data memory according to the flowchart of FIG.
Check if it is stored. Since "E" is not stored, the CPU (62) checks whether there is pallet protrusion data "E" in stage number 2, but since it is not stored in this stage number either, it checks stage number 3. Since data r E is stored in stage number 3, CP
U (62) rotates the lifting motor (16) to move the table (
14) up or down to detect the pallet detection sensor (
31> is stopped at the position of pallet (6) of stage number 3. Then, the pallet detection sensor (31) checks whether the pallet (6) has been pushed to a predetermined position, and if the presence of the pallet (6) is detected, the pallet at stocker stage number 3 in the pallet data memory is protruded. Reset the data r E .

Thereafter, the check operation is performed in the same manner in order of stocker stage numbers, but the pallet protrusion data r E is set, and the pallet (6) of that stage is detected by the pallet detection sensor (3).
If the absence of pallet (6) is detected even if 1) is detected, pallet protrusion data r E is detected.

is not reset and continues to be stored as is.

At this time, by pressing the "1" key on the numeric keypad (70) while pressing the CRT key (74), the 28th
You can check the contents of the pallet data memory by displaying the screen shown in the figure on the CRT (67), but if the pallet ejection data r E has not yet been stored, the P column of the corresponding stocker stage number r E is displayed, and it can be confirmed whether the pallet (6) is firmly pushed in.

In this way, the model change of the stocker section (5) is completed,
It is assumed that the palette data memory has contents as shown in FIG.

Next, the operation of supplying the component (3) from the tray component supply device (1) to the component mounting device (4) will be explained.

Once the model change is complete, the operator must use the component mounting device (
4) Start automatic operation.

Then, the component supply device (4)
Parts type for adsorption to the book mounting nozzle (57)
1,""6" and "20" one by one from the tray component supply device (1).

The CPU (62) looks at the contents of the pallet data memory and confirms that there is a stocker stage number of the requested part type for which the pallet protrusion data rE is not displayed, so that it can be supplied to the component mounting device (4). inform about something.

The CPU (62) determines to take out part (3) of part type "1" from the pallet (6) of stocker stage number 3, and checks the number of parts remaining in the same stage.

Here, since the remaining number of parts rO is stored, an automatic check operation of the in-process tray is performed. First, the lifting motor (16) is rotated to position the table (14) at the pull-out position of the pallet (6) with stage number 3.Then, the pull-out claw (20) is rotated by the rotation of the pull-out motor (24).
moves toward stocker 1 (7).

Once the drawer claw (20) stops at the home position, the rod (33) moves upward by the operation of the vertical cylinder (32), and the spring (35) moves the drawer piece (29) around the support shaft (28).
) as shown in Fig. 8 to push it up.

The drawer motor (24) further rotates, and the drawer pawl (20> moves in the open state, and is located at the drawer position as shown in Fig. 9.Then, the rod (33) is moved by the vertical movement cylinder (32).
) is lowered, the claw (20) is closed by the biasing force of the spring (35), and the rising part of the end of the pallet (6) is clamped as shown in Figure 10.Next, the pull-out motor (24) is rotated. move,
Claw (20) that moves away from stocker 1 (7)
The pallet (6) is pulled out as shown in FIG.

Next, the table (14) is rotated by the lifting motor (16).
) rises and stops at a position where the P&P head (39) can take out the parts.

Here, the rotation of the X-axis motor (52) causes the drive pulley (
53), the X moving body (50> moves along the X guide rail (55) via the driven pulley (54) and the X-axis belt (51), and is driven by the Y-axis by rotation of the Y-axis motor (46). The P&P head (39) moves along the Y guide rail (49) via the pulley (47), the Y-axis drive pulley (48), and the Y-axis belt (45), and the P&P head (39) moves along the Y guide rail (49).
), the tray in-process detection sensor (40) first detects the in-process mark (3) on the tray in-process mark placement section (41).
The sensor (40) detects the work-in-progress mark (37C) placed on the loading section (41) as shown in FIG.
) is in a work in progress state, the CPU (62) determines.

Then, the CPU (62) moves the P&P head (39) and places the sensor (40) in the row of the first parts storage area (36) of the tray (2) as shown by the arrow in FIG. Let them search for the mark (37B). The sensor (40
) detects the mark (37B), moves the sensor (40) in the direction of the arrow along the row of parts storage areas (36) where the mark (37B) is placed, and detects the mark (37A). ) to find the placement position.

In this way, when the sensor (40) detects the parts storage area (36) where the mark (37A) is placed, the CPU
(62) indicates that the next position of the parts storage area (36) where the mark (37A) is placed (lower parts storage area (36) in Fig. 5) is where the part (3) will be taken out next. It is determined that this is the in-process position that should be removed, and the take-out matrix 1 (5, 3) indicating this position is stored in the pallet data memory. At this time, if the mark (37A) is not placed and cannot be found, the position next to the mark (37B) is assumed to be the position of the next part (3). Then, the CPU (62) follows the flowchart in Figure 30 as the number of work in progress, and calculates (5-1).
"22" is calculated by calculating X5+(3-1). Based on this result and the data in the total number of parts memory, the CPU (62) calculates (total number of parts - number of parts in progress) to calculate the remaining number of parts 123 and stores it in the pallet data memory.

When the check in progress is completed in this way, P
As the &P head (39) moves, the suction nozzle (44) stops at the position of the next part (3) to be taken out as shown in the take-out matrix, and picks up the part (3).Then, the CPU (62) In accordance with the flowchart in Figure 31, subtract "1" from the remaining number of parts in stocker stage number 3 in the pallet data memory and store it again as "22", and change the take-out matrix/vx to 1 (5, 4). After that, the CPU (62) confirms that the number of remaining parts is not 10'' and changes the table (
14) is lowered, and the table (14) is placed in the stocker 1 (
7) is stopped at the drawer position of the pallet storage stage number 3, and the pallet (6) on the table (14) is stored in the stocker 1 (7) as shown in Fig. 12 by moving the drawer claw (20). do.

After that, the rod (
33) moves upward, and the claw (20) opens as shown in FIG.

The pawl (20) continues to move and stops at the original position as shown in FIG. 14, and the rod (33) is lowered by the operation of the vertical cylinder (32) and the pawl (20) is closed. Parts (3
) is adsorbed by the nozzle (44), then the P&P head (39
) moves and places the component (3) in a predetermined position on the component receiver (56). When the next required part from the component mounting device (4) is component type "6" and component (3) is to be taken out from the pallet 6 with stage number 41, the CPU (
Step 62) confirms that the pallet protrusion data rE is not in the stage number 41 of the pallet data memory and checks the contents of the number of remaining parts. Then, since the remaining number of parts "rO" has been completely stored, the automatic check operation of the in-process tray is performed in the same manner as described above. The table (14) where the pallet (6) is pulled out and placed on it in the same way as in the case of stage number 3
However, it stops at a position where the P&P head (39) can take out the parts.

Then, when the P&P head (39) moves in the same manner as described above and checks the presence or absence of the work-in-progress mark (37C) on the mounting section (41), if it is detected that there is no work-in-progress mark (37C), Since the replaced pallet (6) is full, the pallet data memory cannot store the extraction matrix 1 (1°1) that should be extracted first, and the remaining number of parts is the data "90" that can be stored in the total number memory.
" is stored.

When the in-process automatic check is completed in this way, P&
The P head (39) moves and the suction nozzle (44)
, 1) and picks up the component (3) at position 1) and places it on the component receiver (56).
At the same time, the CPU (62) subtracts "1" from the remaining number of parts at stocker stage number 41 in the pallet data memory, stores "r89", and sets the takeout matrix to 1 (1, 2). Change to

The CPU (62) confirms that the remaining number of parts is not OJ, lowers the table (14), and places the pallet (6) on the pallet (6).
are stored in the stage numbered 41 of the stocker 2 (8) in the same manner as described above.

In the operations of stage number 3 and stage number 41 explained above, the drawer of the pallet (6) and the lifting and lowering of the table (14) are performed on the stocker 1 (7) side and the stocker 2 (8) side.
After the drawer and lifting operation on the stocker 1 (7) side is started, the drawer and lifting operation on the stocker 2 (8> side are performed in parallel immediately, and both sides are operated at the same time). The tables (14) (14) are stopped at the parts removal position.

Then, an automatic check for the tray (2) in progress is performed for each table (14) (14), and
The book suction nozzles (44) (44) are attached to each pallet (6).
)(6), the parts (3) and (3) are sucked and placed on the parts receiver (56) at the same time. Part (3) is sucked into the suction nozzle (44
) are adsorbed, the table (14) will be lowered.

Next, stocker 1 (7
) side table (14) is lowered and the pallet (6> of stage number 4 is pulled out).The table (14) on which the pallet (6) is placed rises and stops at the parts removal position. Since the number of parts remaining in the pallet data memory is "0", the above-mentioned automatic tray in-process check is performed.

First, the tray in-process detection sensor (40) checks the in-process mark placement section (41), and as shown in FIG. 33, the mark (37C) is placed at the third mark placement location. detect that As a result, the CPU (62) determines that the upper left tray (2) in FIG. 33, which corresponds to this loading location, is in the work-in-progress state, and marks ( 37B>(37A), and stores the take-out matrix 3 (4°5) in the pallet data memory from the placement position of the mark (37A).The CPU (62) stores the number of work in progress as described above. 79 is calculated, and the remaining number of parts 41 is calculated from the data in the total parts memory and stored in the pallet data memory.

Thereafter, the component (3) is taken out by the suction nozzle (57) and transferred to the third predetermined position of the component receiver (56).

The contents of the pallet data memory are such that the number of remaining parts is "40" and the take-out matrix is 3 (5°1).The contents of the memory at this time are in the 0 parts receptacle (56) as shown in Figure 34. When three parts (3>) are placed and the part is full, the part receiver (56) moves the transfer shuttle part (13) by a cylinder driving source (not shown) and stops at the part suction position of the mounting nozzle (57).

When the supply of the requested product is completed in this way, the CPU (62)
notifies the component mounting device (4) that supply has been completed.

The operation of the component mounting device (4) in this state will be described below.

A supply completion signal is sent from the CPU (62) to the component mounting device (4).
When the mounting head (78) receives the head motor (8), the mounting head (78)
0), the ball screw (81) and nut <7
9> along the linear guide (82) and stops on the component receiver (56). When the three mounting nozzles (57) (57) (57) pick up the three components (3) placed on the component receiver (56) as shown in Fig. 16, the mounting head (78) is recognition camera (84)
Move in the X direction to the top.

After the position and orientation of the component (3) are recognized by the recognition camera (84), the mounting head (78) moves to the component mounting section (85) in the X direction and stops at a predetermined position. Further, the mounting table (87) on which the printed circuit board (61) supplied to the supply conveyor (88) is placed is moved along the linear guide (91) via the ball screw (90) by the rotation of the motor (89). Moves in the X direction and stops at a predetermined position. In this state, the mounting nozzle (57) mounts the component (3) at a predetermined position on the printed circuit board (61).

Thereafter, by moving the mounting head (78) in the X direction and moving the mounting table (87) in the (3) is also installed.

When all three parts (3) have been installed, the installation head (
78) is the parts supply device (1) to take out the next part (3).
).

While the component mounting device (4) is performing the mounting operation, the component receiver (56) moves to the receiving position of the component (3). Further, when the mounting operation is completed, the component mounting device (4)
According to the flowchart in the figure, a request for the next component group is made to the tray component supply device (1), and the device (1) performs the operation of supplying the next component (3). The following component placement device (
4) The request is for part type "30" and other 2
If the type is a request to the tape parts supply department (83),
Output the supply ready signal and load the pallet with stage number 43 (6)
is located at the part removal position of the undrawn parts removal part (12) as described above. At this stage, the pallet protrusion data r E is not stored and the number of remaining parts is "0".
Since this is not the case, the suction nozzle (44) suctions the component (3) placed at the position of the take-out matrix 1 (7, 3) and transfers it to the component receiver (56). Then, the contents of the pallet data memory are changed so that the number of remaining parts is changed to "2" and the removal matrix is changed to 1 (7.degree. 4). the other 2
Since both parts (3) to be picked up by the mounting nozzle (57) of the book are supplied from the tape parts supply section (83), the parts receiver (56) moves to the part suction position of the mounting nozzle (44). , CPU (62) outputs a supply completion signal according to the flowchart of FIG. Then, the installation nozzle (
44) sucks the component (3) on the component receiver (56). Then, the mounting head (78) is connected to the tape component supply section (8).
3), and the mounting nozzle (44) (44) is attached to the part (3).
)(3) is adsorbed and the component mounting operation is performed in the same manner as described above.

The above operations are performed according to the request of component (3) of component mounting device (4>), and the number of remaining components decreases each time component (3) is supplied.
When the demand for part type 3 "30" is completed, the remaining number of parts is "30".
1'', when the suction nozzle (44) suctions the component (3) in the same manner as described above, the number of remaining components in the pallet data memory becomes "0", and the CPU (62) determines that the number of remaining components is r.
It is determined that the result is "O".

Then, the drawer table (14) on which the pallet (6) is placed is lowered and stopped at the pallet storage position of step number 43, and the motor (24) is rotated to move the pallet (6) to the position shown in Figure 12. move it. And the cylinder (32
) is operated to open the pull-out claw (20) and moved to the state shown in FIG. 14, and the cylinder (32) is operated to close the pull-out claw (20). At this time, the CPU (62
) is the door sensor (10
) to determine whether to open or close the safety door (9). At this time, if the sensor (10) detects that the safety door (9) is closed, the CPU (62) controls the drawer motor (
24) to rotate at normal speed (high speed) and rotate it until the pallet (6) reaches the position shown in Figure 15.
stand out. At the same time, pallet protrusion data "E" is stored in the pallet data memory. The operator selects the palette (
6) is protruding, which indicates that the pallet (6) is empty, and the pallet (6) must be replaced. Also, it can be checked on the screen of the CRT (67) that "E" is displayed in the P column as shown in FIG.

Next, the operation of exchanging the pallet (6) by the operator will be explained. The operator opens the safety door (9) and pulls out the protruding pallet (6) to find the pallet (6) full of parts (3) or, if the parts (3) are in the process, to draw out the model. In the same way as when switching, the in-process mark (37A) (
Insert and push in the pallet (6) on which 37B) (37C) is placed. At this time, the pallet (6) is locked by the stopper (30) attached to the table (14>), so it does not protrude into the elevator part (11>).

Even if the table (14) is being raised or lowered as shown in Fig. 6, the vertical movement cylinder (32) operates, the opening/closing stopper (34) moves upward, and the stopper (30) moves the pallet ( 6) so that it does not protrude into the elevator part (11).When the operator presses the pallet replenishment switch (60) after replacing the pallet (6>), the switch shown in FIG. Follow the flowchart to create a palette (
6) is checked to see if it is firmly pushed in,
If the presence of pallet (6) is detected, the pallet protrusion data ``EJ'' is reset, and if the absence of pallet (6) is detected, the pallet protrusion data rE remains set. During the replacement of step 6), the pallet (6) of another stage number becomes empty and the number of parts remaining is r.
O'', the CPU (62) detects this and performs the ejecting operation of the empty pallet (6). When the state shown in FIG. 12 is reached in the same manner as described above, the CPU (62) uses the door sensor (10) to detect whether the safety door (9) is open or closed, but it does not detect whether the safety door (9) is open or not. In order to detect the drawer motor (
24) is set to rotate at a low speed, the pallet (6) is rotated at a low speed, and the pallet (6) is ejected at a low speed to the position shown in Fig. 15. The pallet ejection data ``E'' is stored in the pallet data memory as described above. is stored.

The door sensor (10) indicates that this safety door (9) is open.
If the empty pallet (6) is to be ejected while being detected, a buzzer or the like will be used to notify the operator who is replacing the pallet (6) that the empty pallet (6) will be ejected. You can.

Next, an explanation will be given of the operation when there is a request from the component mounting device (4) for a component type that is out of material, according to the flowcharts shown in FIGS. 35 and 36. Here, the pallet (6) on which the part type 11 of stage number 3 is placed becomes empty and ejection is performed, and the pallet ejection data "Eyo" is stored, and all other stocker stages are filled with parts (3). If it is, the component type '1..'10 is selected from the component mounting device (4).
．． and r30'' shall be required. It is assumed that the material out mode changeover switch (93) is in the reinstallation mode. Since pallet ejection data "E" is stored in stage number 3 where component type "1" is stored in the pallet data memory, the CPU (62) does not load all the requested types to the component mounting device (4). Notify that it cannot be supplied, and inform that the number of parts types that cannot be supplied is "1". Then, the parts mounting device (4) turns on the warning light (94).
lights up and indicates the part type ``10'' excluding RL, which is the out-of-stock type.
” and “30”, and stores “component type r1” together with mounting information in the out-of-stock memory (92) in the component mounting device (4).

CPU for which types r10 and 30 were requested (62)
The parts mounting equipment (
4), performs the same parts supply operation as described above, places parts (3) (3) on the parts receiver (56), and places the parts (3) on the parts receiver (56).
56) is located at the component suction position of the mounting nozzle (57), it outputs a supply completion signal. Then, the component mounting device (4) performs the component mounting operation on the printed circuit board (61) in the same manner as described above.

After this, the supplying and mounting operations are continued by the mounting device (4) and the supplying device (1), but the component (3) that is the last to be mounted on one printed circuit board (61)
When the above-mentioned out-of-stock memory (92) has stored one type ``1'' that has been postponed, the mounting device (4) supplies only one type ``1'' to the supply device (1). ). Here, if the pallet (6) containing part (3) of type "1." has already been replenished in the stocker stage with stage number 3, a supply ready signal is output to the mounting device (4) and the part (3) of type "1" is replenished. 3) is carried out, and the mounting device (4>), which learns of the completion of the supply, performs suction and mounting operations for the parts 3) of type "1".

Here, the type ``1'' was postponed from the mounting device 4).
When a request is made, if the pallet (6) is ejected and the pallet ejection data rE is stored, an abnormality is reported as a material outage error, and the loading device (4) and supply device (1) stops operation. In addition, for the postponed parts (3) that could not be supplied, installation information such as type and installation position is stored one by one in the out-of-stock memory (92).
If there are multiple postponed parts (3), multiple parts can be stored. If all of the postponed parts (3) stored in the memory (92) cannot be installed in one product request, the parts (3) group stored in the out-of-stock memo (January 92) will be reinstalled. As requested, all parts (3) of the part type stored in the missing part memory (92) are mounted.

On the other hand, the aforementioned material out mode switch y (9)
3) is switched to the abnormal stop mode, when the CPU (62) notifies the placement device (4) that there is a part type that cannot be supplied by making a normal request for parts types, an abnormality notification is issued. is completed, and the devices (1) and (4) are stopped.

Note that the supply device (1) notifies the component mounting device (4) that the requested product cannot be supplied because the pallet protrusion data rE is stored in the pallet data memory of the stage number in which the product is stored.
, or when multiple parts of the same type are requested and the second or third part (3) of the same type is removed when the total number of remaining parts in the stocker section (5) becomes "0". This is a case where something that cannot be done can be determined through calculation.

In addition, regarding the operation when there is a request from the component placement device (4) for a component type that is out of material, in this embodiment, after the placement operation has been completed, the next component type stored in the memory (92) is Part (3) is installed. here,
Even if the installation is not completed normally, the material out pallet (6)
After the pallet supply switch (60) is replaced,
When the pallet (6) is completely suppressed, a check is made to see if the pallet (6) is firmly pushed in according to the flowchart shown in FIG. The CPU (62) detects that the pallet (6) of the stage number has been replenished and notifies the loading device (4) so that the pallet (6) with the stage number is replenished and the pallet is requested and supplied without being postponed. It can also be done.

When checking the in-process state of the pallet, place the in-process mark (37B) at the beginning of the line of in-process marks (37A) placed in the parts storage area (36) immediately before the next part to be taken out (3). However, I made sure to place the in-process mark (37A) at the beginning of the row in the parts storage area (36), and the sensor (4)
0) may first search for the mark (37B) in the first column.At this time, if the part (3) is placed and the mark (37B) is placed, the mark (37B) is found in the first row and column.
7A) cannot be placed, place only the mark (37B) and the detection sensor (40) will be placed on the mark (37B).
It is determined that the part (3) to be taken out next is placed in the parts storage area (36) next to the parts storage area (36) of ).

Also, when checking the work-in-progress status of this pallet, if one tray (2) among the plurality of trays (2) is empty and the next tray (2) is full, mark (37A) is displayed.
(37B) is not placed because there is no parts storage place (36) to place it, and the mark (37C) is placed on the mark corresponding to the tray (2) on which the first part (3) in the pallet (6) is placed. If you leave it in the storage location (42), the full tray (2
), mark (
37B) is detected, and it is determined that the tray (2) is full. Place the mark (37A) at the end of the tray (2) in front of the tray (2) on which the first part <3> is placed, and mark (37A) at the beginning of that row.
B) and place the mark (37C) on the mark placement place (4) corresponding to the tray (2) where the mark (37A) is placed.
2) may be placed.

Also, if the mark (37B) is not placed, the mark (37A)
Even if only the parts (3) are placed at 1/rc, the sensor (40) will check the in-process position in the order in which parts (3) are taken out, or the mark (37C) can be checked.
) Even if there is no mark (37A) in the pallet (6), the sensor (40) sequentially checks the parts from the beginning and detects the mark (37A) to know the position of the leading part.

Furthermore, mark placement place (37C) is placed (
In addition to 42>, a placement position may be provided where a mark is placed to detect only whether the pallet 6> is full or a work in progress.

Furthermore, a memory is provided for storing the take-out matrix for each tray (2), a place is provided for each tray (2) to place a mark, and after the pallet is replaced, the sensor (40) is installed for each tray (2). It may be possible to detect whether the tray (2) is full or not based on the presence or absence of a mark at the mark placement location.

In this case, if it is detected that the tray is not full, the same in-process check operation as described above is performed for each tray (2).
This result will be stored in memory for each extraction matrix. If the tray (2) is empty, place a mark indicating empty in the last part storage area of the tray (2) and place another mark at the beginning of the column. ) so that it can be determined that it is empty. Alternatively, it is also possible to provide a separate mark placement location for each tray (2) to distinguish between empty and in-process trays.

In this way, when replacing the pallet, the unfinished or full tray (2) can be placed at any position on the pallet (6>).

Furthermore, instead of placing a work-in-progress mark (37A) in the parts storage area (36) of the immediately preceding pick-up order to indicate the position of the leading part in each tray (2) or in the pallet (6), as shown in FIG. As shown in the figure, the frame part of the tray (2) (other than the parts storage area (36)) or the pallet (
6) Mark storage area (9) corresponding to the row and column of the parts storage area is shown above.
6), place the in-process mark (97) in the mark storage area (96) corresponding to the row and column where the leading part is placed, and make the detection sensor (40) detect the mark (97). You can.

Alternatively, instead of placing the work-in-progress mark on it, you can slide it sideways to change its position, attach a magnet to it, or paint it with ink that can be easily wiped off. It may also be possible to detect this by letting the user wear the device.

Furthermore, as a mark to indicate the position of the first part, a mark surrounding the part may be placed in the parts storage area (36) where the first part is placed, or the part (3) in this parts storage area (36) may be placed.
Place a mark that reflects light so that it will not be hidden by component (3) below, or a mark that will be hidden if component (3) is placed in all of the component locations on tray (2). Alternatively, a mark may be attached to the leading part itself so as not to affect the suction, and a detection sensor capable of detecting these marks may be used to detect the mark.

Furthermore, as a method for detecting the position of the leading component, the above-mentioned mark or the leading component itself to which no mark is attached may be imaged and recognized using a camera or the like.

(G) Effects of the Invention As described above, the present invention, when changing the type of printed circuit boards to be handled, can see at a glance which pallets in the stocker need to be replaced, thereby saving the time and effort of searching for pallets. Can be done.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a component supply device and a component mounting device to which the present invention is applied, FIG. 2 is a perspective view of the component supply device, FIG. 3 is a side view of the component supply device and component mounting device, and FIG. An enlarged side view of the drawer table and stocker section, etc.; FIG. 5 is a plan view of the pallet pulled out on the drawer table;
Figures 6 and 7 are side views showing the state in which the stopper and the opening/closing stopper are locked to the pallet, and Figures 8 to 14 are
Figure 15 is a side view of the stocker and drawer table showing the pallet drawer and storage operation, Figure 15 is a side view of the stocker and drawer table showing the pallet being extended, and Figure 16 is the state where the mounting nozzle is positioned on the component. FIG. 17 is a control block diagram of the present invention, FIG. 18 is a diagram illustrating model data, FIG. 19 is a diagram illustrating a product library, and FIG. 20 is an example of contents of old execution model memory. 21 is a diagram illustrating the contents of the new execution model memory,
Figure 22 is a diagram illustrating the contents of the total number of parts memory;
The figure is a CRT screen diagram illustrating the contents of the palette data memory.
RT screen diagram, Figure 25 is a flowchart of model switching operation, Figure 26 is FILE NAME LIS
27 is a flowchart of the detection operation of a replaced pallet, and FIGS. 28 and 29 are CRT screen diagrams of T.
The figure shows a CRT screen diagram illustrating the contents of the pallet data memory, Figure 30 shows a flowchart of the automatic check operation for the tray in progress, No. 31 [m shows a flowchart of the operation of subtracting the number of remaining parts, and No. 32 Figures 1 and 33 show a flowchart of the operation of storing the pallet in the stocker and ejecting it from the stocker, Figure 33 is a plan view of the pallet pulled out on the pull-out table, and Figure 34 shows the contents of the pallet data memory. The illustrative diagram, FIG. 35, is a diagram showing a flowchart of the component mounting operation of the component mounting device.
FIG. 6 is a flowchart of the supply operation of the parts supply device, FIG. 37 is a CRT screen diagram illustrating the contents of the pallet data memory, and FIG. 38 is a plan view of the pallet on which the tray is placed. (1)...Tray component supply device, (2)...Tray, (3)...Electronic components, (4)...Component mounting device, (5)...Stocker section, (6)... ...Pallet, (20)...Drawer claw, (24)...Drawer motor, (27)...Push-back piece, (61)...
Printed circuit board, (62)-CPU, (63)-・
・RAM.

Claims (2)

[Claims] (1) Prepare multiple pallets for storing trays on which the same type of components are placed, each corresponding to multiple types of components, and place the components in multiple stages in the stocker according to the printed circuit board to be mounted by the component mounting device. In a component supply device in which various required components are loaded and taken out from a tray and supplied to a component mounting device, the stage number of the stocker is determined according to the type of the printed circuit board on which the next component is to be mounted. a first storage means capable of writing type information of the parts to be stored in the pallet for each time; a second storage means in which type information of parts stored in the storage means can be written; a protruding means for protruding the pallet from the stocker; Information and the second
and control means for comparing the product information written in the storage means and operating the ejecting means to eject the pallet corresponding to the stage number if the product information is different. (2) Prepare multiple pallets for storing trays on which the same type of components are placed, each corresponding to multiple types of components, and place the components in multiple stages in the stocker according to the printed circuit board to be mounted by the component mounting device. In a component supply device in which various required components are loaded and taken out from a tray and supplied to a component mounting device, the stage number of the stocker is determined according to the type of the printed circuit board on which the next component is to be mounted. a first storage means capable of writing type information of the parts to be stored in the pallet for each time; a second storage means in which type information of parts stored in the storage means can be written; a protruding means for protruding the pallet from the stocker; Information and the second
a comparison means for comparing the product type information written in the storage means; and if the product types are different as a result of the comparison by the comparison means, the ejection means is actuated to eject the pallet corresponding to the stage number, and the first storage means and control means for not operating the ejecting means when product type information is not written in the parts supplying apparatus.