JP5588827B2 - A method for creating a work plan for workers for a group of circuit board working machines - Google Patents

Description

  The present invention relates to an operator who should perform one or a plurality of workers for a group of circuit board work machines including one or more circuit board work machines for performing a circuit board work determined for a circuit board. The present invention relates to a method for creating a worker work plan that is a work plan.

  An example of the group of circuit board working machines is an electronic circuit component mounting machine array that is described in Patent Document 1 below and includes a plurality of electronic circuit component mounting machines. Each electronic circuit component mounting machine is provided with a component supply device, and each component supply device has a plurality of component holders detachably mounted on the holder holding device. As the mounting operation progresses, the remaining number of components, which is the number of electronic circuit components housed in each component holder, decreases and finally cannot be supplied. This component holder needs to be replaced with a new component holder, and this replacement operation is an example of an operator operation.

  Conventionally, this part holder replacement operation has been performed when the number of remaining parts of each part holder becomes 0 or less than the set number. However, since a large number of component holders are mounted on the electronic circuit component mounting machine row, it may be necessary to replace a plurality of component holders at the same time, and the replacement work is delayed due to the lack of workers. In some cases, the operation of the electronic circuit component mounting machine row had to be stopped. Moreover, if it is going to avoid this stop, it will be necessary to increase the number of workers in charge of an electronic circuit component mounting machine row | line, and a labor cost will become high.

JP 2004-104075 A

  The present invention avoids concentration of worker work on the circuit board work machine group at a time, and stops the circuit board work machine group while allowing as few workers as possible to take charge of the circuit board work machine group. An object of the present invention is to make it possible to create an operator work plan that can effectively avoid the occurrence of an unavoidable situation.

  According to the present invention, a worker who is a plan of worker work to be performed by a worker on a group of circuit board work machines including a plurality of circuit board work machines for performing a circuit board work determined for the circuit board. A method for creating a work plan, comprising: (a) a plurality of variables that change with the operation of each of the plurality of circuit board working machines, and a plurality of changes that are amounts of changes in the variables. Before the accumulated amount exceeds each of the plurality of work required determination amounts corresponding to the plurality of variables, it is necessary for the worker to perform the worker work on each of the plurality of circuit board work machines. Although there are a plurality of unit change amounts that are the amount of change within one work unit, a plurality of prime numbers that are smaller than a plurality of quotients obtained by dividing each of the plurality of work necessity determination amounts are obtained, and the plurality of prime numbers are obtained. The number of the same thing exceeds the set number If necessary, an alternative work required determination amount that is smaller than the unit change amount by a natural number times the work required determination amount that caused a prime number that exceeds the set number is used instead of the work required determination amount. A prime number group obtaining step of reducing each of the prime numbers that exist beyond the set number, and obtaining a prime group that does not include the same number of prime numbers beyond the set number; and (b) the plurality of units The plurality of worker operations corresponding to each prime number in the prime group before the start of the next work unit of the work unit in which each change amount reaches a corresponding cumulative change amount corresponding to each prime number in the prime group And a plan creation step for creating the worker work plan in which each of the above is executed.

  According to the worker work plan created by the method according to the present invention, it is possible to satisfactorily avoid the concentration of worker work. It is possible to satisfactorily avoid the occurrence of a situation in which the operator's work is not in time and the circuit board work machine row must be stopped.

Aspects of the Invention

  In the following, the invention that can be claimed in the present application (hereinafter referred to as “claimable invention”. The claimable invention is a subordinate concept of the “present invention”, which is the invention described in the claims). The invention may include inventions, superordinate concepts of the invention of the present application, or inventions of other concepts). As with the claims, each aspect is divided into sections, each section is numbered, and is described in a form that cites the numbers of other sections as necessary. This is for the purpose of facilitating the understanding of the claimable invention, and is not intended to limit the combinations of the constituent elements constituting the claimable invention to those described in the following sections. In other words, the claimable invention should be construed in consideration of the description accompanying each section, the description of the embodiments, the prior art, and the like. The added aspect and the aspect in which the constituent elements are deleted from the aspect of each item can be an aspect of the claimable invention.

  In each of the following terms, (1) corresponds to claim 1, (2) corresponds to claim 2, (3) corresponds to claim 3, (5) corresponds to claim 4, The (6) term corresponds to claim 5 and the (9) term corresponds to claim 6, respectively.

(1) Worker work that is a plan of worker work to be performed by a worker for a group of circuit board work machines including a plurality of circuit board work machines that perform a circuit board work determined for a circuit board A method for creating a plan,
A plurality of variables that change with the operation of each of the plurality of counter circuit board working machines, and a plurality of changes corresponding to the plurality of variables are accumulated by a plurality of changes that are the amounts of change of the variables. Although it is necessary for an operator to perform an operator work on each of the plurality of counter circuit board working machines before exceeding each of the work necessity determination amounts, a plurality of change amounts within one work unit A plurality of prime numbers smaller than a plurality of quotients obtained by dividing each of the plurality of work necessity determination amounts, and the same number among the plurality of prime numbers exists beyond the set number. In this case, instead of the work required determination amount, an alternative work required determination amount that is obtained by reducing the work required determination amount that has caused a prime number that exceeds the set number to be a natural number times the unit change amount. More than the set number Each prime smaller that the prime group acquiring step of acquiring a prime group not including the prime same value exceeds the number of the setting,
The plurality of unit changes corresponding to each prime number of the prime group before the start of the next work unit of the work unit in which each of the unit change amounts reaches a corresponding cumulative change amount corresponding to each prime number of the prime group. And a plan creation step of creating the worker work plan in which each of the worker works is performed.
The counter circuit board work machine group may constitute a counter circuit board work machine line that performs the counter circuit board work for one circuit board that flows from upstream to downstream in cooperation with each other. A group of counter circuit board working machines that perform a counter circuit board work on a substrate, but in which a worker group is composed of one worker or a group of workers. A work machine may be used.
One variable or a plurality of variables may exist in one counter circuit board working machine. As an example of the latter, when the counter circuit board working machine is an electronic circuit component mounting machine that mounts electronic circuit components on a circuit board, a plurality of component supply tools (feeder, The number of cumulative supply parts in each of the trays and the like). In this case, the same number of variables as the number of component supply tools mounted on one electronic circuit component mounting machine exists in one electronic component mounting machine.
The “unit of work” includes, for example, a set number of circuit boards to be worked on by the counter circuit board working machine (including one or more circuit boards, which is smaller than one), a set work number of the counter circuit board working machines, It can be set operation time of the circuit board.
It is easy to set the “work unit” to a size suitable for one worker to perform one worker work in the circuit board work machine group within the time corresponding to the work unit. Is not essential. For example, a unit of work can be set to a size that allows one worker to perform a set number of worker operations, or one worker can only perform one worker operation. Since the circuit board work machine group is handled by a plurality of workers, when the same number of worker operations as the number of workers can be executed at the same time, the number of worker operations equal to the number of workers can be performed. It is possible to set a unit of work.
The quotient obtained by dividing the work required determination amount by the unit change amount (if this quotient includes a fraction, it may be rounded up to an integer, but when obtaining a prime number later, it is necessarily an integer, so rounding up is not essential) ) Represents the time required for work on the basis of the time when the circuit board working machine starts work on the circuit board, and this time required for work is represented by the number of work units.
Therefore, when multiple circuit board work machines start work on the circuit board at the same time, obtain prime numbers smaller than the multiple quotients so that the same prime number does not exceed the set number. For example, the number of work units exceeding the set number for the same work unit is required when the number of work units reaches the least common multiple of any two prime numbers, that is, the product of two prime numbers. It is. Since the work determination amount is usually sufficiently larger than the unit change amount, each prime number is a relatively large value, and the product of two relatively large prime numbers is a very large value. Therefore, it is rare that the number of work units actually reaches the product of two large prime numbers, and it is possible to satisfactorily avoid the need for worker work exceeding the set number in the same work unit.
However, as long as a plurality of circuit board work machines belonging to the group of circuit board work machines start the circuit board work at different times, the plurality of circuit board work machines are simultaneously connected to the circuit as described above. It is not ideal as in the case of starting the substrate operation, and it may be necessary to perform an operator operation exceeding the set number for the same operation unit at a relatively early time. However, once such a situation occurs, it becomes the same state that multiple counter circuit board working machines have started counter circuit board work at the same time, and multiple worker operations are required for the same unit of work. Become rare. This will be described in more detail based on specific examples in the description of the embodiment.
The prime number is desirably as large as possible from the viewpoint of avoiding as much as possible the need for worker work exceeding the set number in the same work unit, and the prime number is smaller than the quotient. In addition, it is desirable that the prime number is closest to the quotient. But not essential. For example, if it is clear in advance that there are more than a set number of worker tasks in which the work determination amount and the unit change amount are the same, prime numbers that are not the same among the prime numbers smaller than the quotient It is also possible to select from the beginning. Alternatively, prime numbers smaller than the quotient may be selected in preparation for the occurrence of supply mistakes. However, even in that case, it is desirable that 10 or more levels are prime numbers that are not small, and that 5 or more levels or 3 or more levels are desirably prime numbers that are not small.
In addition, when the worker's work is replacement of the component holder, it is possible to discard the parts remaining in the component holder that has been replaced with a new component holder. It is desirable to select the one that is as close as possible to the quotient, but the remaining taped parts (long-shaped carrier tape with multiple electronic circuit parts held at equal intervals) are collected and joined together. When used, if the remaining taped parts are too short, the connection work becomes difficult, so it may be better to leave them with a certain length, in which case the prime number is sufficiently smaller than the quotient. It would be desirable to be. However, if the prime number is too small, the effect of the invention cannot be obtained sufficiently. Therefore, a prime number that is at least larger than 1/2 of the quotient is desirable, and is desirably larger than 2/3 or 3/4 of the quotient.
(2) The counter circuit board working machine includes: (a) a board holding device that holds a circuit board; (b) a plurality of component holders that respectively hold the same type of electronic circuit components of the actual initial number of parts; A component supply device including a holder holding device that removably holds each of the component holders; and (c) taking out an electronic circuit component from the component supply device and attaching the electronic circuit component to the circuit board held by the substrate holding device. An electronic circuit component mounting machine including a mounting device to be mounted;
In the circuit board working machine group, a plurality of electronic circuit component mounting machines are arranged in a line to form a mounting machine line, and the mounting machine line is connected to each circuit board that is sent from upstream to downstream. The circuit component mounting machine sequentially mounts electronic circuit components.
The worker work includes a holder exchanging work for exchanging each of a plurality of the m-th part holders of the plurality of the part supply devices of the mounting machine line,
The prime group acquiring step, the number of electronic circuit components supplied from each of the component holders of said m-th per the unit of work as a unit mounted component number n _m, said plurality of components and supplies the electronic circuit component When the actual initial part number of each of the holders is N _m , a plurality of prime numbers smaller than each of a plurality of quotients obtained by dividing the actual initial part number N _m by the unit mounted part number n _m are obtained, and the plural When the same number of prime numbers exists in excess of the set number, the actual initial part number N _m that has generated one of the same prime numbers that exceeds the set number is used as the actual initial part. by 'was changed to an alternative initial component number n _m' is a number initial part of alternative natural number times smaller alternate initial component number n _m of the unit mounting part number n _m than the number n _m acquires the prime number for The same prime number exceeds the set number Comprising the step of obtaining a prime group not including Te,
The total number of electronic circuit components that are supplied from the plurality of component holders to the end of the target work unit that is one of the work units among the plurality of component holders, Replacing the plurality of component holders such that the replacement of the component holders reaching the corresponding cumulative part number corresponding to each prime number of the prime group is performed before the start of the next work unit of the target work unit. The worker work plan creation method according to item (2), including a process of creating a work plan.
The component holder can be a reel in which a tape-shaped component in which a plurality of electronic circuit components are held at equal intervals is wound on a longitudinal carrier tape, or a stick in which a plurality of electronic circuit components are accommodated in a longitudinal case. Further, a component container in which a plurality of electronic circuit components are accommodated in a bulk shape may be used, or a feeder that sequentially supplies the reel, the stick, and the component container from the component supply unit while being detachably held. Further, it may be a tray that accommodates a plurality of electronic circuit components arranged in a plane, or a pallet that accommodates a plurality of trays.
For replacement work of parts holders, remove the feeders, trays, and pallets that have been used so far, and replace them with simple feeders, trays, pallets, etc. Installed and complicated replacement work including additional work such as checking whether the installed reel and stick are correct, or removing the reel that was previously installed in the feeder and installing a new reel In addition, a splicing operation for connecting the tip of the subsequent taped part to the end of the preceding taped part is included.
In this section, the step of acquiring a prime group is a step of acquiring a prime group that does not include the same prime number exceeding the set number, but even if there are multiple workers in charge, they are close to each other When replacement of parts holders becomes necessary at the same time, since a plurality of people cannot work at the same time, the set number is set to 1, that is, a process of acquiring a prime group that does not include the same prime number. It is desirable.
(3) The counter circuit board working machine has (a) a board holding device that holds the circuit board, (b) a component supply device that supplies electronic circuit components, and (c) a mounting that holds the suction nozzle in a detachable manner. An electronic circuit component mounting machine including a mounting device for receiving an electronic circuit component from the component supply device by the suction nozzle and mounting the electronic circuit component on a circuit board held by the substrate holding device,
The circuit board working machine group includes an electronic circuit component mounting machine group including a plurality of the electronic circuit component mounting machines,
The worker work includes a maintenance work of the suction nozzle to be performed on the electronic circuit component mounting machine group,
The prime number group acquisition step acquires a plurality of prime numbers smaller than each of the quotients obtained by dividing the actual maintenance usage amount preset for each of the plurality of the suction nozzles by the usage amount per unit of work. When the same number among the plurality of prime numbers acquired exceeds the set number, the actual maintenance usage amount that caused the same prime number to exceed the set number is calculated per unit of work. By using an alternative maintenance usage amount that is reduced by a natural number multiple of the usage amount instead of the maintenance usage amount, each of the prime numbers that exist beyond the set number is reduced, and the prime numbers having the same value as each other are reduced. Including a step of acquiring a prime number group that does not exceed the set number,
Of the plurality of suction nozzles, the total amount of usage of the plan creation step used by the end of the target work unit that is one of the work units of each of the plurality of suction nozzles is the prime number. A maintenance work plan for the plurality of suction nozzles so that the maintenance work for the suction nozzles that reach a corresponding cumulative usage corresponding to each prime number of the group is performed before the start of the next work unit of the target work unit. The worker work plan creation method according to item (1) including a step of creating
The maintenance work of the suction nozzle includes removal of the suction nozzle from clogging with dust, removal of the adhered adhesive, correction of the bending of the suction pipe, and the like. Further, the amount of suction nozzle used can be the number of times electronic circuit components are sucked, the elapsed time since the start of use, or the like.
(4) The counter circuit board working machine is
A substrate holding device for holding a circuit board;
An application device for applying a highly viscous fluid to a plurality of predetermined portions of the circuit board held by the substrate holding device;
A relative movement device for moving the substrate holding device and the coating device relative to each other;
The worker according to any one of (1) to (3), further comprising: a high-viscosity fluid applicator including a container for storing the high-viscosity fluid, and a supply device that supplies the high-viscosity fluid to the coating device. Work plan creation method.
High-viscosity fluid applicators include screen printers that print cream solder on circuit boards and dispensers that apply adhesive locally.
(5) The worker operation includes a high-viscosity fluid replenishment operation for replenishing each of the containers of the high-viscosity fluid applicator group including a plurality of the high-viscosity fluid applicators,
The prime group acquisition step is a quotient obtained by dividing the actual initial storage capacity set in advance for each of the containers of the plurality of high-viscosity fluid applicators by a unit consumption that is a consumption per unit of work. The actual initial value obtained when a plurality of smaller prime numbers are acquired, and when the same one of the acquired prime numbers exceeds the set number, the prime number that exceeds the set number is generated. By using an alternative initial capacity, which is a natural number times smaller than the consumption per unit of work, instead of the actual initial capacity, each of the prime numbers exceeding the set number is made smaller and the same prime number. Including a step of acquiring a prime number group that does not include the set number exceeding
The total amount of consumption up to the end of the target work unit that is one of the work units of each of the plurality of containers is the prime number of each of the prime groups. The high-viscosity fluid replenishment operation of the plurality of containers is performed so that the high-viscosity fluid replenishment operation for the container that reaches the corresponding cumulative consumption amount corresponding to The worker work plan creation method according to item (4) including a process of creating a plan.
(6) At least one of greasing and cleaning for a plurality of target portions in which the worker's work is one or more in each of the plurality of the pair of circuit board work machines belonging to the pair of circuit board work machines. Including maintenance work, including
A plurality of prime numbers smaller than the quotient obtained by dividing the set operation time set in advance for each of the plurality of target parts by the unit operation time as the operation unit in the circuit board work machine group in the prime number acquisition step. And when the same number of the obtained prime numbers exceeds the set number, the set operation time that caused the prime number to exceed the set number is determined as the unit operation time. By using an alternative operation time that is reduced by a natural number instead of the set operation time, each of the prime numbers that exist beyond the set number is reduced, and the same number of prime numbers is included beyond the set number. Including a prime group acquisition step of acquiring no prime group,
The total of the unit operation time by the end of the specific unit operation time which is one of the unit operation times for each of the plurality of target portions among the plurality of target portions is the prime number. Create a maintenance work plan for the plurality of target parts so that the maintenance work for the target part that reaches the corresponding cumulative operating time corresponding to each prime number of the group is performed before the start of the next work unit of the target work unit The worker work plan creation method according to any one of items (1) to (5), including a step of:
The method of this section can be applied to the creation of an operator work plan for a counter circuit board working machine group including at least one of the electronic circuit component mounting machine group and the highly viscous fluid coating machine group. The target part of the greasing work can be, for example, a greasing nipple, and the target part of the cleaning work is the suction nozzle of the electronic circuit component mounting machine, the discharge nozzle of the adhesive application machine, or the application surface of the test application member, It can be at least one of a mask or squeegee for a screen printer.
(7) A worker work plan including a plurality of types of worker work having different time required for execution of the worker work is created in advance, and the time required for each empty work unit is created. The worker work plan creation method according to any one of items (1) to (6), wherein a plan is created so that a short worker work is executed.
(8) A work plan including a plurality of types of worker work having different times required for execution of the worker work, the worker work having a short required time being created first, The worker work plan creation method according to any one of items (1) to (7), wherein a work is created by assigning the worker work having a long required time to the work.
In a mode in which this section is subordinate to section (7), the worker work plan creation method described in this section and the worker work plan creation method described in section (7) are compromised. .
(9) A worker work plan including a plurality of types of worker work having different time required for execution of the worker work and having a low degree of freedom in execution time is created first, and the degree of freedom in execution time is The worker work plan creation method according to any one of items (1) to (6), wherein a plan is created by assigning a large worker work at a time when the worker work with a low degree of freedom is not performed.
(10) Worker work which is a plan of worker work to be performed by a worker for a group of circuit board work machines including a plurality of circuit board work machines for performing a circuit board work determined for the circuit board. A device for creating a plan,
A plurality of variables that change with the operation of each of the plurality of counter circuit board working machines, and a plurality of changes corresponding to the plurality of variables are accumulated by a plurality of changes that are the amounts of change of the variables. Although it is necessary for an operator to perform an operator work on each of the plurality of counter circuit board working machines before exceeding each of the work necessity determination amounts, a plurality of change amounts within one work unit When a plurality of prime numbers smaller than a plurality of quotients obtained by dividing each of the plurality of work necessity determination amounts by the unit change amount are obtained, and the same number among the plurality of prime numbers exists beyond the set number. In addition, instead of using the work required determination amount, an alternative work required determination amount obtained by reducing the work required determination amount that caused a prime number that exceeds the set number to be a natural number times the unit change amount is used. , Elements existing beyond the set number Each was small, and prime group acquiring unit that acquires prime group not including exceed the number of said sets the prime number of the same value to each other,
The plurality of unit changes corresponding to each prime number of the prime group before the start of the next work unit of the work unit in which each of the unit change amounts reaches a corresponding cumulative change amount corresponding to each prime number of the prime group. And a plan creation unit for creating the worker work plan in which each of the worker works is executed.
The features described in the above items (2) to (9) are also applicable to the worker work plan creation device of this item.
(11) a counter circuit board working machine including: (a) a board holding apparatus that holds a circuit board; and (b) a work apparatus that performs a predetermined operation on the circuit board held by the board holding apparatus;
A control device for controlling the counter circuit board working machine, the control device comprising:
Along with the operation of the circuit board working machine, an operator work plan storage unit that stores a plan of worker work to be performed by the worker with respect to the circuit board working machine,
A circuit board including a work notifying unit for sequentially notifying a work to be performed by the worker at a plurality of times when the worker work is required based on the worker work plan stored in the worker work plan storage unit Work system.
The features described in the items (1) to (10) are applicable to the circuit board working system of this item.

It is a perspective view which shows the external appearance of the electronic circuit component mounting system which is one Embodiment of claimable invention. It is a perspective view which removes a part of cover and shows the structure of the mounting module which is a component of the said electronic circuit component mounting system. It is a perspective view which takes out and shows the mounting apparatus in the said mounting module. It is a block diagram which shows the control apparatus of the said electronic circuit component mounting system. It is a figure for demonstrating the feeder replacement | exchange operation | work in the said electronic circuit component mounting system. It is a figure which shows the initial part number table used in order to create the said feeder exchange work plan. It is a figure which shows the feeder exchange work table in the said electronic circuit component mounting system. It is a flowchart which shows the main routine of the control program of the feeder replacement | exchange operation | work in the said electronic circuit component mounting system. It is a flowchart which shows the feeder exchange work plan preparation routine in the said main routine. It is a flowchart which shows the feeder exchange work alerting | reporting routine in the said main routine. It is a figure for demonstrating the creation principle of the said feeder exchange work plan. It is a figure which shows the result of the simulation performed in order to confirm the effectiveness of the said feeder exchange work plan. It is a figure which shows an example of the said feeder exchange work plan. It is a front view which shows the screen printer in another embodiment. It is a front view which shows the cream-like solder supply apparatus in the said screen printer. It is a fragmentary sectional front view which shows the principal part of the adhesive agent dispenser machine in another embodiment.

  Hereinafter, an embodiment of the claimable invention will be described with reference to the drawings. In addition to the following embodiment, the claimable invention can be implemented in various modifications based on the knowledge of those skilled in the art, including the aspects described in the above [Aspect of the Invention] section.

  FIG. 1 shows the appearance of the electronic circuit component mounting system. In this mounting system, a plurality of mounting modules 10 are arranged side by side and arranged side by side on a common and common base 12, and a plurality of mounting modules 10 are further arranged side by side. It is configured. Each of the plurality of mounting modules 10 can be considered as an electronic circuit component mounting machine, and the mounting of the electronic circuit components on the circuit board is shared and performed in parallel.

The mounting module 10 is described in detail in, for example, Japanese Patent Application Laid-Open No. 2004-104075, and parts other than those related to the claimable invention will be briefly described.
As shown in FIG. 2, each of the mounting modules 10 includes a module main body 18 as a main body frame, a substrate transport device 20, a substrate holding device 22, a component supply device 24, a mounting device 26, and a reference mark imaging device 28 (see FIG. 3). ), A component imaging device 30 and an electric control device 32.

  As shown in FIG. 2, the module main body 18 includes a bed 36 that is long in the front-rear direction, two front columns 38 and rear columns 40 that rise from the front end portion and the rear end portion of the bed 36, and four of them. And a crown 42 supported by the columns 38 and 40. The crown 42 includes a beam 44 that is a strength member and a cover 46 that covers the beam 44.

As shown in FIG. 2, the substrate transfer device 20 includes two substrate conveyors 54 and 56, is provided at the center of the bed 36 in the front-rear direction of the mounting module 10, and a circuit board 57 (hereinafter not particularly necessary). As long as the substrate 57 is abbreviated as long as it is parallel to the direction in which the plurality of mounting modules 10 are arranged, and is transported in the horizontal transport direction. The substrate holding device 22 is provided for each of the two substrate conveyors 54 and 56, and includes a support member that supports the substrate 57 from below and a clamp member that clamps both side edges parallel to the conveyance direction of the substrate 57, respectively. 57 is held in such a posture that the mounting surface on which the electronic circuit component is mounted is horizontal. The transport direction of the substrate 57 by the substrate transport device 20 is the X-axis direction, and the direction perpendicular to the X-axis direction in the horizontal plane, which is a plane parallel to the mounting surface of the substrate 57 held by the substrate holding device 22, is the Y-axis direction. To do.

  The component supply device 24 is provided on one side in the Y-axis direction with respect to the substrate transfer device 20 of the bed 36 and on the front side of the mounting module 10. The component supply device 24 is configured to supply components by, for example, a tape feeder (hereinafter abbreviated as a feeder) 58 which is a kind of component feeder, and a plurality of feeders 58 and a feeder to which the feeders 58 are detachably attached. And a support base 59. Each of the plurality of feeders 58 supplies a large number of parts while being held by a tape, and each of the plurality of feeders 58 holding different types of parts is a feeder in which the respective parts supply units are arranged along the X-axis direction. Attached to the support base 59. The component supply device may be a device that supplies components by a tray.

  As illustrated in FIGS. 2 and 3, the mounting device 26 includes a mounting head 60 and a head moving device 62 that moves the mounting head 60. As shown in FIG. 3, the head moving device 62 includes an X-axis direction moving device 64 and a Y-axis direction moving device 66. The Y-axis direction moving device 66 includes a linear motor 70 provided across the component supply unit of the component supply device 24 and the substrate holding device 22 on the beam 44 constituting the module body 18, and a Y-axis as a movable member. The slide 72 is moved to an arbitrary position in the Y-axis direction. The X-axis direction moving device 64 is provided on the Y-axis slide 72 and is moved in the X-axis direction with respect to the Y-axis slide 72 and is relatively moved in the X-axis direction with respect to each other. 76 and an X-axis slide moving device 78 for moving these slides 74 and 76 in the X-axis direction (only a moving device for moving the second X-axis slide 76 is shown in FIG. 3). . Each of the two X-axis slide moving devices includes, for example, a servo motor which is a kind of an electric rotary motor serving as a drive source, and a feed screw mechanism including a ball screw and a nut. Move to any position in the axial direction.

  The mounting head 60 is detachably mounted on the second X-axis slide 76, and the head moving device 62 allows the mounting head 60 to be arbitrarily attached in a mounting work area that is a moving area straddling the component supply unit 24 and the substrate holding device 22. Moved to position. The mounting head 60 is configured to hold a component by a suction nozzle 86 which is a kind of component holder. The suction head 86 is detachably held, and the number of nozzle holders 88 constituting the holder holding portion is different. A plurality of types of mounting heads 60 are prepared, and selectively attached to the second X-axis slide 76 according to the type of the substrate 57 on which the component is mounted.

  As shown in FIG. 4, the electric control device 32 mainly includes a control computer 98 including a CPU 90, a ROM 92, a RAM 94, and an I / O port 96. The control computer 98 is not shown in the figure. The actuators serving as drive sources such as the substrate transfer device 20, the substrate holding device 22, the component supply device 24, and the mounting device 26 are connected via a drive circuit, and the reference mark imaging device 28 and the component imaging device 30 are connected. In addition, the display 100 shown in FIGS. 1 and 2 is connected to the alarm device 102 and the input device 104 which are omitted in FIGS. The notification device 102 notifies the worker in charge of the electronic circuit component mounting system that it is necessary to perform the worker work, and includes at least one of a notification lamp and a notification buzzer. The

  The ROM 92 of the control computer 98 stores a basic program for controlling the substrate transport device 20, the substrate holding device 22, the component supply device 24, the mounting device 26, the reference mark imaging device 28, the component imaging device 30, and the like. The basic program is executed based on the sequence data stored in the RAM 94 in order to mount the component on the substrate 57, whereby the substrate 57 is transported and the component is mounted on the substrate 57. The control computer 98 of each mounting module 10 is connected to a host computer 120 including a CPU 110, a ROM 112, a RAM 114 and an I / O port 116, and the sequence data and the like are stored in the RAM 114, while the ROM 112 stores the electronic circuit. A program for creating a replacement work plan for the feeder 58 in the component supply device 24 as a kind of worker work in the component mounting system based on the sequence data is also stored.

Hereinafter, the creation of this feeder replacement work plan will be described.
In this electronic circuit component mounting system, a large number (here, M) of feeders 58 are mounted on a plurality of mounting modules 10 as a whole, and in principle, each feeder 58 should be mounted in one work unit. When there are no more parts than the number of parts (hereinafter simply referred to as “insufficient parts”), the feeder 58 is replaced with a feeder 58 in which parts of a specified initial number of parts are accommodated. Yes. In the present embodiment, as shown in FIG. 5, one work unit is a time sufficient to perform one feeder replacement work, and n sheets (n is 1 or more in the meantime), It is determined at the time when the component mounting operation to the board 57 of 2) is performed. The “n sheets” can be considered as one work unit, and each feeder 58 is the total number of components supplied from each feeder 58 to the n substrates 57 and mounted. It can also be considered that the “number of unit mounted parts” is one work unit.

  In addition, as shown in FIG. 5, the above “one-time feeder replacement operation (referred to as a broad feeder replacement operation)” includes “feeder preparation”, “feeder removal / removal”, and “cleaning after feeder”. The “feeder preparation” is a series of operations including “feeder removal” for removing the feeder 58 from a storage shelf (not shown), and barcodes provided respectively on the feeder 58 and the reel 130 (see FIG. 2). Read and stored in the host computer 120 or personal computer, and “reel attachment” for attaching the reel 130 to the feeder 58. “Feeder detachment” is an operation for removing the feeder 58 having insufficient parts from the feeder support base 59 and attaching the feeder 58 for which the preparation work has been completed, and “cleaning after feeder” is the reel from the removed feeder 58. "Reel removal" for removing 130 and "Feeder storage" for storing the feeder 58 in the storage shelf. The above “bar code reading” is performed in the control computer 98 of each mounting module 10 in order to prevent erroneous mounting of the feeder 58 (the type of component accommodated therein). The component information including the initial number of components and the feeder identification code that can individually identify the feeder 58 are obtained. The feeder identification code obtained here is associated with the obtained feeder identification code. As is apparent from the following explanation, the specified initial number of parts is also used for creating a feeder replacement work plan.

  In addition, in practice, “feeder preparation” and “feeder detachment” need to be completed by the end of one unit of work, but “cleaning after feeder” is delayed from the end of one unit of work. It can be executed. In particular, when one work unit is a mounting work on one substrate 57 and “feeder removal” is performed during substrate loading / unloading at the end of the work unit, a part of “cleaning after feeder” or All will be performed at the beginning of the next unit of work or in a unit of work that does not require operator work.

  A sequence list for assembling various electronic circuits is stored in the RAM 114 of the host computer 120, and the sequence list for the electronic circuit to be assembled next is sent to the control computer 98 of each mounting module 10 for each mounting module. 10, the feeder exchange work plan is created in the host computer 120 prior to that. This feeder replacement work plan is a kind of worker work plan for equalizing the work of the workers required for the execution of the mounting work by the electronic circuit component mounting system so that the work is not concentrated at one time. is there.

  The feeder replacement work plan includes an initial part number table 134 (created based on the information acquired by the “bar code reading”), the sequence list, and a general prime number table not shown in FIG. Are used to execute the feeder replacement work plan creation routine shown in FIG. The initial component number table 134 is a feeder number m (for example, an electronic circuit component mounting system) that is a number assigned to all the feeders 58 mounted on the electronic circuit component mounting system for execution of the next mounting operation. The whole is numbered 1 to M in order from the upstream feeder 58. It can also be considered as the number of the feeder mounting portion in the feeder support base 59.) and the taped parts wound around each reel 130 Is a table that is created by associating the type and the specified initial number of parts. The feeder replacement plan creation routine is created as a subroutine of the main routine shown in FIG. 8, and each feeder 58 is wound with a taped part that accommodates a specified number of initial parts. It is created on the assumption that a new reel 130 is mounted and a new reel 130 is also mounted on the feeder 58 to be replaced. The electronic circuit to be assembled next is supplied from M feeders 58. Suppose the parts to be used are necessary.

Although the main routine includes a number of subroutines for performing various processes, FIG. 8 shows only a portion deeply related to the creation of the feeder exchange work plan and the notification of the feeder exchange work.
First, in the initial setting of S1, a variable m which is a feeder number is set to zero. Then, in S2, it is determined whether or not a feeder replacement work plan is instructed by the operator's operation of the input device 104. If there is an instruction, a feeder replacement work plan creation routine in S3 is executed. In S4, it is determined whether or not the start time of one work unit has come in each mounting module 10. Specifically, it is determined whether or not the mounting operation for n substrates 57 has been completed. When the start time is reached, the feeder replacement operation notifying routine of S5 is executed. Eventually, in S6, it is determined whether or not an instruction to end the execution of the main routine is given by the operator operating the input device 104. If the determination result is NO, S2 and subsequent steps are executed again. If the determination result is YES, the termination process of S7 is performed and the execution of the main routine is terminated. In S6, it is determined whether or not the assembly work of the predetermined number of electronic circuits has been completed, and if it is completed, the termination process in S7 may be automatically executed.

Next, a feeder replacement work plan creation routine will be described.
First, in S11, the variable m is incremented and the first feeder 58 is designated. Next, in S 12, the type of component to be accommodated in the first feeder 58 is acquired based on the sequence list, and the prescribed initial component number C _m of the component is read from the initial component number table 134. In S13, the unit mounting part number c _m is the number of parts to be mounted on the n substrates 57 in one unit of work based on the sequence list is acquired by the calculation of _{c m = n × a m,} S14 in, the computation of C _m / c _m, is obtained the number of viable unit of work by the initial number of components C _m prescribed in S15, smaller than the quotient C _m / c _m, and the closest prime number to the quotient p _m is obtained by using the prime number table is stored in the feeder replacement operation plan table 136 of RAM114 in association with the identification code of the feeder 58 (see FIG. 7). The quotient C _m / _cm often includes a fraction, but it does not interfere with the execution of S15.

Subsequently, in S16, the same prime number p _m and acquired latest prime p _m is performed is determined whether there is already in the feeder replacement operation plan table 136 in S15, the determination result if YES, S17 in, the latest prime p _m is changed to small and the nearest prime number than, a determination is made in S16 again. The execution of S17 and S16 is repeated until the determination result of S16 becomes NO, and finally the alternative prime number p _m ′ is acquired and stored in the feeder replacement work plan table 136 in S18. On the other hand, S16 of the determination result is executed immediately after execution of S15 is if NO, the prime number p _m in the feeder replacement operation plan table 136 acquired step S15 in S18 is stored. After all, the feeder replacement operation plan table 136, so that the prime number p _m or alternative prime p _m 'in association with the feeder identification code of each feeder 58 is stored. The prime number p _m is determined on the basis of the prescribed initial part number C _m , while the alternative prime number p _m ′ is deliberate in order to prevent the same prime number from being present in the feeder replacement work plan table 136. In other words, the number of parts held on the reel 58 is determined based on the alternative initial part constant C _m ′ smaller than the specified initial part number C _m , and the alternative prime number p _m ′ is It can be considered acquired. In the comparison with the alternative prime number p _m ′ and the alternative initial component constant C _m ′, the prime number p _m and the specified initial component number C _m are referred to as a basic prime number and a basic initial component number.

After the execution of S18, the variable m is whether it is above the total number of feeders 58 in S19, i.e., for all of the feeder 58 is determined whether or not the basic prime p _m or alternative prime p _m 'is acquired is performed If the determination result is NO, the variable m is incremented in S11 and S12 to 18 are executed. As a result of the repetition, if the determination result in S19 is YES, the execution of the feeder replacement work plan creation routine ends, and the execution returns to the execution of the main routine.
As apparent from the above description, the basic prime is stored in association with the feeder identification code to the feeder replacement operation plan table 136 p _m or alternative prime p _m 'is the cumulative unit operation to the replacement of the feeder 58 is performed The content of the feeder replacement work plan table 136 itself is a feeder replacement work plan. Then, since the inside of the basic prime p _m and alternative prime p _m 'is stored in the feeder replacement operation plan table 136 does not include one another identical, requires the feeder replacement twice in one unit of work This means that a feeder replacement work plan that does not become a problem has been created.

Therefore, each time the mounting operation is performed on n substrates 57 in each of the mounting modules 10, the cumulative work unit number for each feeder 58 is incremented by 1, and the cumulative work unit number is determined as the next work unit. when the equal basic prime p _m or alternative prime p _m 'in the unit, it is possible to make it should perform feeder replacement operation in the next unit of work is informed by the display 100 and alarm 102.

However, in this electronic circuit component mounting system, by executing the feeder replacement work notification routine shown in FIG. 10, the basic initial component number C _m or the alternative initial component number C _m ′ and the unit mounted component number _cm are used. It is informed that the feeder replacement work should be performed within the next work unit. As the unit representing the number of work units, the number of unit-mounted components _cm is used.

After the first S21 the variable m is incremented, C _m = C _m -c _m or _{C m '= C m' -c} m is performed in S22. Processing of S22, the same as the process of obtaining the number of remaining components by subtracting the basic initial component number C _m, or alternatively initial component number C _m cumulative units mounted component count .sigma.c _m from '. This number of remaining parts does not represent the actual number of remaining parts that is actually the number of parts remaining in the feeder 58, but the actual number of remaining parts is the actual number of remaining parts at the time when feeder replacement work is required. This represents the number of parts that can be supplied until the remaining number of parts is reached. It is determined in S23 whether or not the number of parts that can be supplied is negative. If the determination result is YES, the display 100 and the notification device 102 notify that the feeder replacement operation should be performed in S24. Information indicating that the feeder replacement operation should be performed is sent from the host computer 116 to the control computer 98, and the display 100 and the alarm 102 are controlled by the control computer 98 based on the information.

The notification that the feeder replacement work should be performed is performed from the start point to the end point of the corresponding one work unit. Among them, the execution time of the “feeder removal” should be strictly observed. It is desirable to clearly notify the operator of the execution time of “feeder detachment” in accordance with the carry-in / carry-out time.
For example, at the execution time of “feeder detachment”, the alarm device 102 is operated in a manner different from “notification that the feeder replacement work should be performed”. Specifically, when the alarm 102 includes an alarm lamp, the green lamp is normally lit, but the yellow lamp is lit during the period when the feeder replacement operation is to be performed, and the feeder is attached and detached. The notification lamp color is changed, such as the red lamp is turned on, and the notification that the feeder replacement operation should be performed is continuously lit, while the feeder is attached and removed When the lighting mode is changed so as to be flashed, or when the alarm 102 includes an alarm buzzer, it is sounded briefly at a constant period during the time when the feeder replacement operation should be performed, Therefore, it is possible to change the manner of sounding, such as being continuously sounded. When both a notification lamp and a notification buzzer are provided, it is also possible to make the “notification of feeder replacement work” and “notification of feeder removal” different from each other depending on the combination of both operations It is.

Then, in S25, it is awaited that the feeder 58 is exchanged (feeder exchange operation in a narrow sense corresponding to “feeder removal” in FIG. 5). As shown in FIG. 4, the control computer 98 of the mounting module 10 can communicate with the feeder control computer 150 provided in the feeder 58, and the feeder 58 is provided in each feeder holding portion of the feeder support base 59. A feeder detector 152 (only one is shown in FIG. 4 representatively) for detecting whether or not it is mounted is provided. The detection result of the feeder detector 152 and the communication result with the feeder control computer 150 Based on the above, it is possible to detect whether or not the feeder 58 has been removed. Therefore, if the feeder 58 is exchanged, the information is sent to the host computer 120 and the determination result in S25 is YES. In S26, the basic initial part number _Cm or the alternative initial part number _Cm 'is initialized. After the determination, it is determined in S27 whether or not the feeder replacement work is necessary for all the feeders 58. If the determination result is NO, S21 and subsequent steps are executed again. Eventually, the determination result in S27 becomes YES, the execution of one feeder replacement work notification routine is completed, and the process returns to the execution of the main routine.

  The execution of the feeder replacement work notification routine shown in FIG. 10 seems to be different from the case where the mounting work for each of the n substrates 57 is a work unit on the surface, but in practice, the latter is the same. Since it is easier to understand the present invention, the following description will be made as if it were the latter.

According to the contents of the feeder replacement work plan table 136 of FIG. 7 created by executing the feeder replacement work plan creation routine of FIG. 9, that is, according to the feeder replacement work plan, a plurality of mounting modules 10 start mounting work all at once. Under virtual conditions, feeder replacement work (in a broad sense) is required twice or more while mounting work (including loading and unloading of the board 57) is performed on n substrates 57 as one work unit. made it is 'not to reach the least common multiple of the basic prime p _m and alternative prime p _m' cumulative work unit basic prime p _m or alternative prime p _m for will usually substantially greater values, with the least common multiple The product of two basic primes p _m and alternative primes p _m ′ is a very large value and may not occur in the actual electronic circuit assembly work.

  However, in practice, a plurality of mounting modules 10 belonging to the electronic circuit component mounting system are arranged in a line, and a component mounting operation is performed on the substrate 57 sequentially sent by the substrate transfer device 20, so that a plurality of mounting modules 10 are mounted. The module 10 does not start the mounting operation on the first substrate 57 all at once. For example, when the electronic circuit component mounting system is used in a state where there is one board 57 in each mounting module 10 and it does not exist between adjacent mounting modules 10, one work unit is two. Assuming that the mounting operation is performed on the substrate 57, the fifth mounting module 10 (hereinafter simply referred to as the fifth) from the uppermost stream with respect to the first substrate 57 on which the component is mounted in the uppermost mounting module 10. The parts are mounted in 2 working units.

  In this case, the number of work units that require replacement of one feeder 58 in the most upstream mounting module 10 is a prime number 109, and work that requires replacement of one feeder 58 in the fifth mounting module 10. If the unit number is also a prime number 109, under the virtual condition that all mounting modules 10 start mounting work all at once, as shown in FIG. It is necessary to replace one feeder 58 at a time with the mounting module 10. For this reason, the basic prime number 109 for the feeder 58 of the fifth mounting module 10 is changed to an alternative prime number 107 that is one step lower. As shown in FIG. 11 (b), the mounting work is started after two working units as shown in FIG. 11B. Therefore, as shown in FIG. It will be necessary to exchange at the same time. If the basic prime number 109 in the fifth mounting module 10 is not changed to the alternative prime number 107, it is not necessary to replace it at the same time. However, since it is changed, it is necessary to replace it at the same time.

  Although such a situation may occur, even if such a situation occurs once, it is not necessary to replace the two feeders 58 that need to be replaced at the same time again. Later. The replacement of these two feeders 58 is required again at the same time after the work unit number of the least common multiple 11,663 of the basic prime number 109 and the alternative prime number 107. In the example of FIG. This is after 11,663 × 2 = 23,326 substrates 57 are mounted. Therefore, ignoring the fact that the plurality of mounting modules 10 belonging to the electronic circuit component mounting system do not start mounting work all at once, under the virtual condition that all mounting modules 10 start mounting work all at once. Even if the processing shown in the flowchart of FIG. 9 is performed, there is no change in the possibility that the replacement work of the two feeders 58 is required at the same time, and the object of the present invention is achieved. To get.

  In the above description, when the mounting operation to a plurality of (two in the illustrated example) substrates 57 is one unit of work, the detaching operation of the feeder 58 is carried out during the mounting operations to the plurality of substrates 57. From the viewpoint of reducing the number of parts remaining in the feeder 58 to be replaced as much as possible, the last substrate 57 of the plurality of substrates 57 is unloaded and the next unit of work is performed. It is desirable that the feeder 58 be detached and attached when the first substrate 57 is carried in. In that case, the cleaning work after the feeder is performed after the start of the next work unit.

  Further, in the above-described embodiment, the mounting work for the n substrates 57 is one work unit, but the present invention is not limited to this. For example, the feeder 58 is replaced in the narrow sense, that is, the feeder 58 with insufficient parts is removed from the feeder support base 59, and a new reel is mounted and a feeder 58 prepared in advance is mounted. Assuming that the time required for one feeder replacement operation is short, one unit of work can be shortened. For example, the entire mounting operation for one substrate 57 including board loading and unloading can be made into one work unit.

  In this case, a simulation for confirming the effect of the present invention was performed. This simulation uses the sequence list used in the actual production line and the initial number of reel parts actually used, and the start time of the mounting work is delayed by one work unit in the plurality of mounting modules 10. The installation work was performed in accordance with the feeder replacement work plan created without considering the above. The result is shown in FIG. When the present invention is not applied, as shown in FIG. 12 (a), there is a time when feeder replacement work is concentrated, and it is necessary to replace 50 or more feeders at the same time. According to the feeder replacement work plan of the invention, as shown in FIG. 12 (b), confirm that the feeder replacement work occurs almost evenly and at the same time the number of feeders that need to be replaced is reduced to two. I was able to.

In the above embodiment, one unit of work can be performed once for feeder replacement, but cannot be performed twice. However, one unit of work can be performed for multiple times. It can also be sized (by multiple workers). A feeder replacement work plan is created by allowing the same basic prime number p _m and alternative prime number p _m ′ to exist in a single work unit up to a predetermined number. .
As an example, the whole mounting operation including loading and unloading of a substrate is regarded as one working unit, and during the time when the component mounting operation is performed in addition to the time when the loading and unloading of the substrate is performed within the one working unit. This is a case where the feeder 58 can be detached and attached at least at one time. In this case, since the feeder replacement work in a narrow sense can be performed twice by one worker within one work unit, it is assumed that the feeder replacement work can be performed twice per work unit. A plan can be created. However, it is desirable to notify the operator of the time when the feeder 58 can be detached.

  In the embodiment, it is determined whether or not the feeder replacement work is necessary at the start of one work unit, and if necessary, it is notified that the feeder replacement work should be performed immediately. Feeder exchange work was performed within the unit. But this is not essential. The determination of whether or not the feeder replacement work is necessary can be performed before the start time of the work unit that actually requires the feeder replacement. For example, it is possible to determine whether or not feeder replacement work is necessary before several work units, and to notify the advance notice. Such a notice relates only to the feeder replacement work in which the feeder replacement work plan created in accordance with the present invention is narrowly defined, that is, the “feeder removal / attachment”, and the “preparation of feeder” and “cleaning after feeder” are also the same operator. This is particularly effective when the above is performed. This is because if the time when “feeder removal / removal” is necessary is notified in advance, the worker can know the time suitable for “feeder preparation” and “cleaning after feeder”.

In the description of the above embodiment, each feeder 58 is also equipped with a new reel 130 around which a taped part 132 in which a predetermined number of parts are accommodated is wound, and the feeder 58 is also replaced. Although it is assumed that a new reel 130 is mounted, in the final stage of production of one type of electronic circuit, parts may be lost on the way even if it is not the feeder 58 with the new reel 130 mounted. In many cases, it is possible to mount the feeder 58 on which the reel 130 to which a certain amount of components have already been supplied is mounted.
In addition, it allows the feeder to be changed several times per unit at a limited stage such as the final stage of production of one kind of electronic circuit, and the number of workers in charge only at that limited stage. It is possible to avoid as much as possible the necessity to stop the electronic circuit component mounting system by increasing the number of workers, or to allow the electronic circuit component mounting system to be stopped without increasing the number of workers. The creation of a feeder replacement work plan including this stage is also one embodiment of the present invention.

  The description of the embodiment has been made under a virtual condition that avoids complications and facilitates understanding of the invention, and no component adsorption or mounting error occurs in each mounting module 10. Actually, since it is difficult to completely prevent the occurrence of a mistake, the electronic circuit component mounting system may have to be stopped. The embodiment can be considered as creating a feeder replacement work plan that allows the occurrence of such a situation, but the feeder exchange work plan is created so as to avoid the occurrence of such a situation. You can also When determining the time point at which the feeder 58 needs to be replaced, an extra part is left so that there is no shortage of parts even if a suction or mounting error occurs.

  In the above embodiment, as a general rule, a new reel 130 around which a taped part 132 containing a predetermined number of initial parts is used is used, but this condition is not essential. For example, when there are a plurality of reels 130 having different number of remaining parts, the initial number of parts having the smallest number of parts among the reels 130 is regarded as the number of initial parts common to all the reels 130. If the feeder exchange work plan is created, it is possible to avoid as much as possible the need for two or more feeder exchange works within one work unit, and the effect of the present invention can be obtained. .

  In any case, if the feeder replacement work is performed according to the feeder replacement work plan according to the present invention, the feeder 58 on which the reel 130 around which the taped part 132 with the remaining parts is wound is mounted is removed. Inevitable. If the remaining parts are inexpensive and the remaining number of parts is very small, the taped part 132 may be discarded, but if not, the remaining taped part 132 is connected. What is necessary is just to make it use together.

  In the above embodiment, the feeder replacement work notification routine shown in FIG. 10 is executed in the host computer 120, but may be executed by the control computer 98. The entire feeder replacement work plan created by the host computer 120 or each installed module is sent to each control computer 98, and a feeder replacement work notification routine is executed in each control computer 98 based on the plan. It is also possible to create a feeder replacement work plan in one of the plurality of control computers 98 without providing the host computer 120.

Further, in the above embodiment, when two basic primes occur in the same unit of work, the latest basic prime p _m is changed to the alternative base prime p _m ′. not essential, for example, towards the number of parts to be mounted on one substrate 57 is small and the basic prime p _m of components held corresponds to the feeder 58 towards less expensive alternative group prime p _m ' It is also possible to change to
Further, in the above embodiment, every time one of the basic prime p _m is acquired, had been to judge whether the same basic prime p _m is present is performed, all of the feeder after basic prime p _m is acquired for 58, whether the same basic prime p _m is present is checked, if present, any of the same basic prime p _m is an alternative based on a prime number p _m ' It can also be changed.

In addition, there are work plans for “feeder preparation” and “cleaning after feeder” that are included in the above-mentioned broader feeder replacement work but are not included in the narrower feeder replacement work (ie, “feeder removal”). It is desirable to be created. The execution time of these operations is more flexible than the execution time of the narrower feeder replacement work, so a plan is created based on a rule different from the narrower feeder replacement work plan. It is desirable to notify the execution time. Further, “feeder preparation” and “cleaning after feeder” are preferably performed near the time when the feeder 58 is mounted. This is because the number of feeders 58 that can be used for supplying other parts is reduced if it is performed at a time far from the mounting time.
If the operations of “feeder preparation” and “cleaning after feeder” are performed by the same operator as the feeder replacement work in the narrow sense, the plan of these operations is created in association with the plan of the feeder replacement work in the narrow sense. It is necessary to An example will be described below.

The “feeder preparation” and “cleaning after feeder” work plans are created after a narrower feeder replacement work plan (“feeder removal”) is created according to the present invention. It is created sequentially from the plan for the feeder 58 in which the “feeder detachment” is performed early during the “feeder detachment” plan.
FIG. 13 shows that when the feeder A needs to be replaced with the feeder B (denoted as AB removal / attachment), it is assumed that the preparation work for the feeder B has been completed. ”,“ Feeder preparation ”and“ Feeder cleanup ”work plan examples. As is clear from FIG. 13, this worker work plan assumes that the execution time of the feeder replacement work in a narrow sense (“feeder detachment”) is determined at the time indicated by the right-up hatching. “Feeder preparation” represented by hatching may be performed at any time before “feeder removal”, but in this embodiment, the “feeder preparation” work plan is appropriately set before “feeder removal”. In accordance with the rule that it is after the start of the set preceding period set by the length, as soon as possible and not to overlap with "feeder removal" and "feeder preparation" determined in advance. Created. On the other hand, the work plan for “cleaning after feeder” expressed by cross-hatching is decided as soon as possible after “feeder removal” and “feeder removal”, “feeder preparation”, and so on. It is created according to the rule that it should not overlap with the “clean up after feeder”.
In other words, when “feeder detachment”, which is a worker task with a low degree of freedom, is not performed, work for “feeder preparation” with a relatively high degree of freedom is assigned, and work for “cleaning after feeder” with a higher degree of freedom is assigned. The worker work plan is created by assigning it when the “feeder attachment / detachment” and “feeder preparation” operations are not performed.

  Note that if the “preparation of feeder” and “cleaning after feeder” work is performed by a different worker from the “detaching and feeding” task, the work plan for “preparation of feeder” and “cleaning after feeder” should be changed to “removal of feeder” It is also possible to create it regardless of the work plan. However, as described above, from the viewpoint of avoiding a reduction in the number of feeders 58 that can be used for supplying other parts, it is desirable to create them in association with the “feeder removal” operation to some extent. An example of an effective work plan creation from this viewpoint is that the work of “feeder preparation” and “cleaning after feeder” should not overlap with the work of “feeder removal” when creating the work plan shown in FIG. The plan is created without considering the above.

It is also possible to apply the claimable invention to the creation of a worker work plan for performing the maintenance work of the suction nozzle 86 instead of the work of “feeder preparation” and “cleaning after feeder”.
For example, although not shown in the drawings, a plurality of the suction nozzles 86 are held at the rear end of the bed 36 of each mounting module 10 in the mounting system, and the suction nozzles are mounted between the mounting head including the nozzle holder 88. An automatically replaceable nozzle stocker is provided. Then, the maintenance work for the suction nozzle 86 held in the nozzle stocker can be performed by the operator from the rear side of the mounting module 10, and the billable invention is applied to create a plan for the maintenance work.

  Specifically, for each of the suction nozzles 58 held by the mounting heads of the plurality of mounting modules 10, the actual number of maintenance usages (which can be changed according to the type of the suction nozzle 58) is set in advance. First, the actual maintenance usage count is the unit usage count (for example, the number of times each suction nozzle 58 is used for mounting work on one circuit board 57, and may be different for each suction nozzle 58. A plurality of prime numbers that are smaller than and closest to each of the quotients divided by (A) are obtained. Next, when there are two or more of the same prime numbers among the obtained prime numbers, the actual required maintenance usage number that caused the two or more prime numbers to occur is the natural number of the unit usage times. By substituting the number of required maintenance use times reduced by a factor of 2 instead of the required maintenance use number, each of the prime numbers excluding one of the two or more existing prime numbers is reduced, and two prime numbers having the same value are used. A prime group that does not contain any more is acquired. Then, among the plurality of suction nozzles 58, the total number of unit uses of each of the plurality of suction nozzles 58 is within the target work unit (here, mounting work on one circuit board 57), and the prime number group. The suction nozzle 58 that reaches the corresponding cumulative number of times of use corresponding to each prime number is automatically replaced with the same kind of suction nozzle 58 held in the nozzle stocker, and the suction nozzle 58 that is replaced and held in the nozzle stocker is replaced. The maintenance work plan is created so that the maintenance work is performed within the target work unit.

  The claimable invention can also be applied to the creation of an operator work plan for a screen printing machine group (high viscosity fluid applicator group). The screen printing machine 158 is a kind of circuit board working machine, and as shown in FIG. 14, a board holding device 160 that holds a circuit board and a predetermined circuit board held by the board holding device 160. Squeegee devices 164 and 166 (coating devices) for printing cream-like solder (highly viscous fluid) through a mask 162 at a plurality of locations, and a relative movement device 168 for relatively moving the substrate holding device 160 and the squeegee devices 164 and 166 with each other. Including. This screen printer 158 is provided with a cream solder supply device 174 provided with a solder container 172 (high viscosity fluid container) shown in FIG. The container 172 is normally maintained in a posture in which the longitudinal direction is a horizontal direction, but when the cream solder is supplied, the container 172 is placed in a posture in which the longitudinal direction is a vertical direction and the container moving device 178. Thus, the solder is moved along the mask 162, and the cream solder is supplied on the mask 162 in a state of extending horizontally. This cream-like solder is moved in a state where one of the squeegee devices 164 and 166 is in the raised position, and the cream-like solder on the mask 162 is located at an intermediate position between the squeegee devices 164 and 166. When the squeegee device in the raised position is lowered, it is taken in between the squeegee devices 164.166.

A solder replenishment operation for replenishing cream solder to each of the solder containers 172 of the screen printing machine group is an example of an operator operation.
First, an actual initial capacity (which may be different for each coating device) is set for each coating device of the screen printing machine group, that is, for each pair of squeegee devices 164 and 166. Next, the prime number that is smaller than and closest to the quotient obtained by dividing the actual initial capacity by the unit consumption, which is the consumption per printing (application) of cream solder on a set number of circuit boards (for example, the number of circuit boards) And when there are two or more of the same prime numbers among the plurality of prime numbers acquired, the actual initial capacity that produced the prime numbers that exist in the two or more is used as the unit consumption amount. Each of the prime numbers excluding one of the two or more existing prime numbers is reduced, and two identical prime numbers are obtained by using the alternative initial capacity reduced by a natural number multiple of A prime number group not included in the above is acquired, and the amount of consumption until the end of the target work unit, which is one of the work units for each of the plurality of coating apparatuses among the coating apparatuses of the screen printing machine group. The solder is automatically replenished from the solder container 172 to the coating device that reaches the corresponding cumulative consumption corresponding to each prime of the prime group, and as a result, the solder container 172 is operated. It is necessary for the person to replenish the cream solder, and the cream solder replenishment work plan is prepared so that the replenishment work of the cream solder to the solder container 172 is performed within the above-mentioned work unit.

  In the above description, for the sake of simplicity, it is assumed that the entire amount of cream solder contained in the solder container 172 is automatically supplied to the coating device, but this automatic supply is performed in a plurality of times. You may do it. In any case, the cream-like solder accommodated in the solder container 172 is not continuously replenished as the cream-like solder is consumed in the coating device, but is replenished in a certain amount. However, in creating a plan for replenishing cream solder to the solder container 172, the cream solder in the solder container 172 is continuously replenished with the consumption of the cream solder in the coating device, and the solder It can be considered that the cream solder in the container 172 is also consumed continuously, which is simpler.

The claimable invention can also be applied to the creation of an operator work plan for an adhesive dispenser machine group (high viscosity fluid applicator group).
The adhesive dispenser machine can be a dedicated machine. However, as shown in FIG. 16, the adhesive dispenser 194 may be configured by attaching a dispenser head 192 (high viscosity fluid application head) instead of the mounting head to the head holding portion 190 of the electronic circuit component mounting machine. Is possible. The adhesive dispenser machine 194 includes a substrate holding device as in the screen printing machine 158, and the dispenser head 192 is relative to the substrate holding device in a direction parallel to the circuit board held by the substrate holding device. Although it includes a relative movement device that is moved to oppose any part on the circuit board, illustration is omitted.

The dispenser head 192 includes an adhesive container 196 that stores an adhesive, a discharge nozzle 198 that is detachably held at the lower end of the adhesive container 196, and a predetermined amount of pressurized air to the adhesive container 196. And an air supply device 200 for supplying and discharging from the discharge nozzle. In this adhesive dispenser machine 194, it can be considered that the adhesive container 196, the discharge nozzle 198 and the air supply device 200 constitute an application device, or the discharge nozzle 198 and the air supply device 200 constitute an application device, and its application It can also be assumed that the adhesive container 194 supplies the device with adhesive.
In any case, the replenishment of the adhesive to the adhesive container 196 is performed by the operator, and the plan of the adhesive replenishment work for the plurality of adhesive containers 194 of the plurality of adhesive dispensers 194 is the plurality of the above. It can be created in the same manner as the cream solder replenishment work plan to the solder container 172.

10: Mounting module 22: Substrate holding device 24: Component supply device 26: Mounting device 32: Electric control device 36: Bed 54, 56: Substrate conveyor 58: Tape feeder (feeder) 59: Feeder support base 60: Mounting head 62: Head moving device 86: Suction nozzle 88: Nozzle holder 98: Control computer 100: Display 102: Notification device 120: Host computer 130: Reel 132: Tapered part 134: Initial part number table 136: Feeder replacement work plan table 150: Feeder Control computer 158: Screen printer 160: Substrate holding device 162: Mask 164, 166: Squeegee device 168: Relative movement device 170: Screen printer 172 : Solder container 174: Cream solder supply device 190: Head holding unit 192: Dispenser head 194: Adhesive dispenser machine 196: Adhesive container 198: Discharge nozzle 200: Air supply device

Claims (6)

Create a worker work plan, which is a work plan for workers to perform for a group of circuit board work machines that include multiple circuit board work machines that perform the circuit board work specified for the circuit board. A way to
A plurality of variables that change with the operation of each of the plurality of counter circuit board working machines, and a plurality of changes corresponding to the plurality of variables are accumulated by a plurality of changes that are the amounts of change of the variables. Although it is necessary for an operator to perform an operator work on each of the plurality of counter circuit board working machines before exceeding each of the work necessity determination amounts, a plurality of change amounts within one work unit A plurality of prime numbers smaller than a plurality of quotients obtained by dividing each of the plurality of work necessity determination amounts, and the same number among the plurality of prime numbers exists beyond the set number. In this case, instead of the work required determination amount, an alternative work required determination amount that is obtained by reducing the work required determination amount that has caused a prime number that exceeds the set number to be a natural number times the unit change amount. More than the set number Each prime smaller that the prime group acquiring step of acquiring a prime group not including the prime same value exceeds the number of the setting,
The plurality of unit changes corresponding to each prime number of the prime group before the start of the next work unit of the work unit in which each of the unit change amounts reaches a corresponding cumulative change amount corresponding to each prime number of the prime group. And a plan creation step of creating the worker work plan in which each of the worker works is performed. The counter circuit board working machine includes: (a) a board holding device that holds a circuit board; (b) a plurality of component holders that respectively hold the same type of electronic circuit components of the actual initial number of parts; A component supply device including a holder holding device that detachably holds each of the tools; and (c) mounting that takes out an electronic circuit component from the component supply device and mounts the electronic circuit component on the circuit board held by the substrate holding device. Including an electronic circuit component mounting machine including a device,
In the circuit board working machine group, a plurality of electronic circuit component mounting machines are arranged in a line to form a mounting machine line, and the mounting machine line is connected to each circuit board that is sent from upstream to downstream. The circuit component mounting machine sequentially mounts electronic circuit components.
The worker work includes a holder exchanging work for exchanging each of a plurality of the m-th part holders of the plurality of the part supply devices of the mounting machine line,
The prime group acquiring step, the number of electronic circuit components supplied from each of the component holders of said m-th per the unit of work as a unit mounted component number n _m, said plurality of components and supplies the electronic circuit component When the actual initial part number of each of the holders is N _m , a plurality of prime numbers smaller than each of a plurality of quotients obtained by dividing the actual initial part number N _m by the unit mounted part number n _m are obtained, and the plural When the same number of prime numbers exists in excess of the set number, the actual initial part number N _m that has generated one of the same prime numbers that exceeds the set number is used as the actual initial part. by 'was changed to an alternative initial component number n _m' is a number initial part of alternative natural number times smaller alternate initial component number n _m of the unit mounting part number n _m than the number n _m acquires the prime number for The same prime number exceeds the set number Comprising the step of obtaining a prime group not including Te,
The total number of electronic circuit components that are supplied from the plurality of component holders to the end of the target work unit that is one of the work units among the plurality of component holders, Replacing the plurality of component holders such that the replacement of the component holders reaching the corresponding cumulative part number corresponding to each prime number of the prime group is performed before the start of the next work unit of the target work unit. The worker work plan creation method according to claim 1, comprising a step of creating a work plan. The counter circuit board working machine includes: (a) a substrate holding device that holds a circuit board; (b) a component supply device that supplies electronic circuit components; and (c) a mounting head that detachably holds a suction nozzle. An electronic circuit component mounting machine including a mounting device for receiving an electronic circuit component from the component supply device by the suction nozzle and mounting the electronic circuit component on a circuit board held by the substrate holding device,
The circuit board working machine group includes an electronic circuit component mounting machine group including a plurality of the electronic circuit component mounting machines,
The worker work includes a maintenance work of the suction nozzle to be performed on the electronic circuit component mounting machine group,
The prime number group acquisition step acquires a plurality of prime numbers smaller than each of the quotients obtained by dividing the actual maintenance usage amount preset for each of the plurality of the suction nozzles by the usage amount per unit of work. When the same number among the plurality of prime numbers acquired exceeds the set number, the actual maintenance usage amount that caused the same prime number to exceed the set number is calculated per unit of work. By using an alternative maintenance usage amount that is reduced by a natural number multiple of the usage amount instead of the maintenance usage amount, each of the prime numbers that exist beyond the set number is reduced, and the prime numbers having the same value as each other are reduced. Including a step of acquiring a prime number group that does not exceed the set number,
Of the plurality of suction nozzles, the total amount of usage of the plan creation step used by the end of the target work unit that is one of the work units of each of the plurality of suction nozzles is the prime number. A maintenance work plan for the plurality of suction nozzles so that the maintenance work for the suction nozzles that reach a corresponding cumulative usage corresponding to each prime number of the group is performed before the start of the next work unit of the target work unit. The worker work plan creation method according to claim 1, comprising a step of creating The worker operation includes a high-viscosity fluid replenishment operation for replenishing each of the containers of the high-viscosity fluid applicator group including a plurality of the high-viscosity fluid applicators,
The prime group acquisition step is a quotient obtained by dividing the actual initial storage capacity set in advance for each of the containers of the plurality of high-viscosity fluid applicators by a unit consumption that is a consumption per unit of work. The actual initial value obtained when a plurality of smaller prime numbers are acquired, and when the same one of the acquired prime numbers exceeds the set number, the prime number that exceeds the set number is generated. By using an alternative initial capacity, which is a natural number times smaller than the consumption per unit of work, instead of the actual initial capacity, each of the prime numbers exceeding the set number is made smaller and the same prime number. Including a step of acquiring a prime number group that does not include the set number exceeding
The total amount of consumption up to the end of the target work unit that is one of the work units of each of the plurality of containers is the prime number of each of the prime groups. The high-viscosity fluid replenishment operation of the plurality of containers is performed such that the high-viscosity fluid replenishment operation for the container that reaches the corresponding cumulative consumption amount corresponding to the first operation unit is performed before the start of the next operation unit of the target operation unit. The worker work plan creation method according to claim 1, comprising a step of creating a plan. Maintenance in which the worker's work includes at least one of greasing and cleaning for a plurality of target portions that are one or more places in each of the plurality of the pair of circuit board work machines belonging to the pair of circuit board work machines. Including work,
A plurality of prime numbers smaller than the quotient obtained by dividing the set operation time set in advance for each of the plurality of target parts by the unit operation time as the operation unit in the circuit board work machine group in the prime number acquisition step. And when the same number of the obtained prime numbers exceeds the set number, the set operation time that caused the prime number to exceed the set number is determined as the unit operation time. By using an alternative operation time that is reduced by a natural number instead of the set operation time, each of the prime numbers that exist beyond the set number is reduced, and the same number of prime numbers is included beyond the set number. Including a prime group acquisition step of acquiring no prime group,
The total of the unit operation time is the prime number until the end of the unit operation time of interest, which is one of the unit operation times for each of the plurality of target portions, in the planning step. Create a maintenance work plan for the plurality of target parts so that the maintenance work for the target part that reaches the corresponding cumulative operating time corresponding to each prime number of the group is performed before the start of the next work unit of the target work unit The worker work plan preparation method according to any one of claims 1 to 4 including the process of carrying out.   Workers with a high degree of freedom in execution time, including multiple types of worker work that require different time required for execution, and a plan for worker work with a low degree of freedom in execution time. The worker work plan creation method according to any one of claims 1 to 5, wherein a work is assigned at a time when the worker work with a low degree of freedom is not performed and the plan is created.

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