JP5650680B2 - Automatic production line and processing equipment - Google Patents

Description

  The present invention relates to an automatic production line and a processing apparatus.

  In general, in an automatic production line using a plurality of processing devices, for example, as shown in Patent Document 1, a host computer is provided that is communicably connected to each processing device. The operating status of the processing device is monitored.

  As disclosed in Patent Document 1, in a facility in which a plurality of processing devices are monitored by a host computer, when any trouble occurs in any of the processing devices, such as forgetting the power source or computer hang-up, in real time It is possible to detect a failure of the processing apparatus and notify the operator.

Republished WO2007-034957

  However, in a small-scale automatic production line, a host computer as disclosed in Patent Document 1 is often omitted. In such facilities, of course, it is not possible to monitor the operating status of individual processing equipment, and if the automatic production line is abnormally stopped for some reason, the abnormal stop may be overlooked. Also gets higher. Even when a host computer is provided, a processing device or a transport device that cannot communicate with the host computer may be used together in the automatic production line. In that case, it becomes impossible to monitor the operation status of the processing apparatus and the transport apparatus by the host computer, and there is a possibility that the abnormal stop is overlooked.

  The present invention has been made in view of the above-described problems, and in an automatic production line using a plurality of processing apparatuses, it is possible to accurately notify an abnormal stop in the automatic production line without requiring communication with a host computer. It is an object of the present invention to provide an automatic production line and a processing apparatus that can be used.

In order to solve the above-mentioned problem, the present invention comprises a plurality of processing devices arranged in series according to a substrate processing step, and in an automatic production line that transports a plurality of substrates to the processing device in the order of the processing steps. Monitor means for monitoring the flow of the substrate during the automatic operation of the automatic production line, and when the monitor means detects the stop of the flow of the substrate, the flow stop time has a preset maximum waiting time. A determination means for determining whether or not it exceeds, a notification means for notifying an abnormal stop of automatic driving when the determination means determines that the maximum waiting time is exceeded, and the determination means is necessary for the determination. provided a storage unit for storing data on at least one single said processing unit, wherein the storage unit includes a substrate table that stores information about the substrate to be processed, the substrate table and Seki And an automatic operation condition table for storing operation conditions for each substrate, including a maximum waiting time for each substrate registered in the substrate table, and a standard value for storing default values that can be set in the automatic operation condition table The determination means includes a process for searching the substrate table for information on a substrate to be processed, and information on a substrate to be processed in the search process is in the substrate table, In the processing for reading the processing conditions related to the substrate from the automatic operation condition table and executing the above determination on the stop time of the flow based on the maximum waiting time stored in the automatic operation condition table, and the processing for searching If the substrate table has no information about the substrate to be processed, the standard value table Based on the default values stored in an automated production line, characterized in that said and executes a process for executing the determination of the stop time of the flow.

According to another aspect of the present invention, there is provided a processing apparatus arranged in series on a substrate transfer path of an automatic production line according to a substrate processing process, and monitoring the flow of the substrate during automatic operation of the automatic production line Monitoring means for determining, when the monitoring means detects stoppage of the flow of the substrate, determination means for determining whether or not the stoppage time of the flow exceeds a preset maximum waiting time, and the determination means Is determined to exceed the maximum waiting time, a notification means for notifying the abnormal stop of the automatic operation, and a storage unit for storing data necessary for the determination unit , the storage unit, A substrate table that stores information about the substrate to be processed, and a substrate table that is associated with the substrate table and includes a maximum waiting time for each substrate registered in the substrate table. An automatic operation condition table that stores conditions; and a standard value table that stores default values that can be set in the automatic operation condition table, and the determination unit searches the substrate table for information on a substrate to be processed. When the information related to the substrate to be processed in the processing and the processing to be searched is in the substrate table, the processing condition related to the substrate is read from the automatic operation condition table and stored in the automatic operation condition table. Based on the waiting time, if there is no information on the substrate to be processed in the process for executing the above determination about the stoppage time of the flow and the process to be searched, the information is stored in the standard value table. Based on the default value, the above determination for the stoppage time of the flow is performed. A processing unit, characterized in that is to execute the process.

  In the aspect of the present invention, since any of the processing devices installed in the automatic production line is provided with the monitor means, the determination means, and the notification means, the automatic production line is long even if the automatic production line does not have a host computer. It is possible to notify the operator that the time is stopped. In other words, if any unit (processing device or transfer device) on the automatic production line is out of order, such as a failure, forgetting to turn on the power, or the microprocessor of the control device is hung up, Stop at that unit. Therefore, the substrate stays upstream from the unit. In addition, the substrate is not transported downstream of the unit that has failed. Therefore, it is possible to detect an abnormal stop of the line by monitoring the flow of the substrate, even when the unit that has failed is in any installation location of the automatic production line. And when an abnormal stop is detected, it can be notified by a notification means provided in the processing apparatus, so that the operator can know the abnormal stop of the automatic production line without relying on the production management function by the host computer. In many cases, the monitoring means, determination means, and notification means can be configured by sensors or control units already installed in the processing apparatus, so that the present invention can be implemented in a very inexpensive manner. Furthermore, in an automatic production line, the substrate often pauses due to the characteristics of individual processing apparatuses and specification settings. For this reason, it is difficult to determine whether the substrate is abnormally stopped due to a unit failure or is an acceptable temporary stop by simply determining whether the substrate is stopped / flowing. However, in this aspect, since the stop of the flow of the substrate is evaluated based on the preset maximum waiting time and it is determined whether or not it is an abnormal stop, it is accurate despite the simple configuration. Abnormal stop detection can be realized.

Moreover, in each aspect, based on the combination of a processing apparatus and a board | substrate, since a suitable maximum waiting time can be set for every said combination, a precise abnormal stop determination can be implement | achieved.

In a preferred aspect, the automatic operation condition table of the storage unit stores, as the maximum waiting time, a maximum loading waiting time set based on a substrate transport timing in a previous process of loading the substrate into the processing apparatus. . In this aspect, a suitable maximum waiting time can be set according to the processing characteristics in the previous process of the processing apparatus that monitors the flow of the substrate. Therefore, it can be precisely determined whether the stop of the flow of the substrate is an abnormal stop or an allowable temporary stop.

In a preferred aspect, the automatic operation condition table of the storage unit stores, as the maximum waiting time, a maximum unloading waiting time set based on a substrate transfer timing to the next process in which the processing apparatus unloads the substrate. . In this aspect, a suitable maximum waiting time can be set according to the processing characteristics in the next process of the processing apparatus that monitors the flow of the substrate. Therefore, it can be precisely determined whether the stop of the flow of the substrate is an abnormal stop or an allowable temporary stop.

  Further, as an aspect of the automatic production line, at least a part of the path for transporting the substrate is a dual lane system configured by two parallel lanes, and the monitoring means, the determination means, and the notification means Is preferably provided in the processing apparatus installed on a path in series with the two parallel lanes. In this aspect, even in a so-called dual lane automatic production line, in which demand has been increasing in recent years, it is possible to provide a suitable abnormal stop notification.

  As described above, according to the present invention, in the automatic production line using a plurality of processing apparatuses, the flow of the substrate is monitored by the monitoring means of the processing apparatus, and the flow of the substrate is stopped. Since it is possible to accurately determine whether or not there is an abnormal stop, there is a remarkable effect that it is possible to accurately notify the abnormal stop on the automatic production line without requiring communication with the host computer. .

It is the schematic of the automatic production line which concerns on one Embodiment of this invention. It is a block diagram which shows the principal part of the processing apparatus employ | adopted as the automatic production line of FIG. It is a figure which shows an example of the data table (entity) memorize | stored in the processing apparatus of FIG. 2, (A) is a figure which shows the entity relationship (ER) of the data table, (B) is FIG. It is a view table which shows the example of a setting of the automatic driving | running condition table of A). It is a flowchart which shows an example in case the processing apparatus of FIG. 2 performs the setting of "standard processing time", "maximum carrying-in waiting time", and "maximum carrying-out waiting time". It is a flowchart which shows another example in case the processing apparatus of FIG. 2 performs the setting of "standard processing time", "maximum carrying-in waiting time", and "maximum carrying-out waiting time". It is a flowchart which shows the example of execution of the abnormal stop detection program which concerns on embodiment of FIG. It is a flowchart which shows another execution example of the abnormal stop detection program which concerns on embodiment of FIG. It is a flowchart which shows another example of execution of the abnormal stop detection program which concerns on embodiment of FIG. It is the schematic of the automatic production line which concerns on another embodiment (dual lane system) of this invention.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.

  Referring to FIG. 1, an automatic production line 10 according to an embodiment of the present invention includes a screen printing station that performs screen printing on a substrate W, and a component mounting station that mounts electronic components on the substrate W on which screen printing has been performed. A reflow station that performs a reflow process on the substrate W on which electronic components are mounted, and an inspection station that images and inspects the substrate W after the reflow process are provided. In the screen printing station, for example, one screen printing apparatus 11 is arranged in series. In the component mounting station, for example, two sets of component mounters 12 are arranged in series. One reflow device 14 is arranged in the reflow station. Furthermore, one inspection apparatus 16 that performs image inspection is disposed in the inspection station. In addition, a substrate transport conveyor 21 is installed on the upstream side of the screen printing apparatus 11, between each station, and on the downstream side of the inspection apparatus 16.

  The screen printing device 11, the component mounter 12, the reflow device 14, and the inspection device 16 are all examples of the “processing device” of the present invention, and these devices are also collectively referred to as the processing device A in the following description.

  Referring to FIG. 2, processing apparatus A is a known apparatus in terms of hardware, and is common in that it includes a control unit 30 embodied by a microprocessor or the like. The control unit 30 includes an arithmetic unit 31 and a storage unit 32 embodied by a ROM, a RAM, an auxiliary storage device, and the like. A display / operation unit 40, a buzzer 50, and a lighting display device 60 are connected to the control unit 30.

  The display / operation unit 40 includes a display 41 and a pointing device such as a keyboard. The display / operation unit 40 has a function of displaying a program execution status of the processing apparatus A, an error message of the processing apparatus A itself, or the like. Based on the information, the operator has a function that can be operated to input information such as various data and commands to the control unit 30. In this embodiment, by operating this display / operation unit 40, a “maximum waiting time” to be described later can be set.

  The buzzer 50 and the lighting display device 60 are output elements for informing or displaying the operation status of the processing device A.

  Further, various sensors (generically referred to as “sensors 70” in FIG. 2) are connected to the control unit 30. The sensors 70 include a carry-in substrate detection sensor 71 that detects the substrate W carried into the processing apparatus A along the conveyance path, and a carry-out substrate detection sensor 72 that detects the substrate W carried out from the treatment apparatus A. (See FIG. 1). These are embodied by an optical sensor, a limit switch, or the like, and can detect the timing when the substrate W is carried into a certain processing apparatus A and the timing when the substrate W is carried out from the processing apparatus A. It has become. Whether the substrate W is flowing in the control unit 30 during the automatic operation of the automatic production line by the combination of the timing when the carry-in substrate detection sensor 71 is turned ON / OFF and the timing when the carry-out substrate detection sensor 72 is turned ON / OFF. A program that determines whether or not is installed. In the present embodiment, the control unit 30 and the substrate detection sensors 71 and 72 of the sensors 70 are an example of a monitoring unit that monitors the flow of the substrate W.

  In the automatic production line shown in FIG. 1, a manual operation mode in which individual processing apparatuses A are individually operated and an automatic operation mode in which individual processing apparatuses A are linked to automatically process substrates W sequentially are selected. Can be selected automatically. This operation mode is controlled by the control unit 30. In addition, each processing apparatus A can monitor the flow of the substrate W based on detection signals from the carry-in substrate detection sensor 71 and the carry-out substrate detection sensor 72. Each processing apparatus A determines whether or not the downstream processing apparatus A can accept the substrate W based on the detection of each substrate detection sensor 71 and 72, and the downstream processing apparatus A It is programmed to carry out the substrate W only when the substrate W can be received.

  A bar code reader 80 is connected to the control unit 30 according to the present embodiment. The barcode reader 80 is for reading a barcode attached to the substrate W and reading information about the substrate W. When the barcode reader 80 is provided, for example, when a substrate W with a small number of lots is processed in the manual operation mode, or when a substrate W of a new product is processed by a test, it can meet various needs. it can.

  The storage unit 32 of the control unit 30 stores a program necessary for operating the processing apparatus A and various data. Here, in the present embodiment, the storage unit 32 is configured to store the following master data and transaction data.

  Referring to FIG. 3A, the master data stored in the storage unit 32 includes a substrate table 321 that stores information on the substrate W to be processed, and each substrate W registered in the substrate table 321. And an automatic operation condition table 322 for setting the operation conditions. These tables 321 and 322 are a collection of data called entities. The tables 321 and 322 are composed of columns generally referred to as attributes (hereinafter, attributes are indicated by {}) and rows referred to as tuples (hereinafter, tuple values are indicated by ""). Logically configured in a matrix. The attribute refers to information on the columns set in the tables 321 and 322 (for example, {substrate product number} {number of parts} {outer dimensions}, etc.) (see FIG. 3B). A tuple refers to a collection of information (instances) for each row such as “BD001”, “10 (sec)”... (See FIG. 3B).

  The substrate table 321 includes {substrate product number} for registering the product number of the substrate W, {external size, number of chamfers} for registering the outer dimensions, the number of chamfers, and the like for each substrate product number. {Substrate product number} includes product numbers W such as “BD001”, “BD002”, and so on. By specifying the value of this {substrate product number}, it is possible to specify information about the substrate W.

  The automatic operation condition table 322 registers the product number of the substrate W included in the substrate table 321 {substrate product number}, and registers the standard processing time set for each combination of the processing apparatus A and the substrate W {standard processing time}. {TMin} for registering the “maximum loading waiting time” when the substrate W is transported from the upstream processing apparatus A at the time of loading, and “maximum when unloading the substrate to the downstream processing apparatus A” {TMout} for registering “unloading waiting time”.

  By setting {substrate product number}, the automatic operation condition table 322 is associated with the substrate table 321. As a result, various operating conditions can be set in the automatic operating condition table 322 for each substrate W registered in the substrate table 321.

  The standard processing time is a processing time that is normally required by the processing apparatus A based on the substrate information of the substrate table 321, and is a value calculated based on the process of the processing apparatus A and the specifications of the substrate W. .

  The maximum carry-in waiting time corresponds to a certain processing apparatus A (for example, the inspection apparatus 16) from when the substrate W is loaded from the upstream processing apparatus A (reflow apparatus 14) to when the next substrate W is loaded. This is the maximum (longest) time that the processing apparatus A (inspection apparatus 16) can wait. The maximum unloading waiting time is determined when a certain processing apparatus A (for example, the reflow apparatus 14) unloads the substrate W from the downstream processing apparatus A (inspection apparatus 16). 14) is the maximum (longest) time during which the downstream processing apparatus A can be accepted. The maximum loading waiting time and the maximum loading waiting time are both examples of the maximum waiting time in the present invention. By setting the maximum waiting time, when the flow of the substrate W is stagnant, the processing apparatus A is temporarily stopped during normal operation, or any of the processing apparatuses A or the substrate transport conveyor It is possible to determine whether an abnormality has occurred in 21.

  In the illustrated embodiment, the substrate table 321 and the automatic operation condition table 322 are associated with each other and {standard processing time, TMin, TMout}, etc. for each product number of all substrates W to be processed. The value of is set. As described above, by combining the maximum waiting time for each substrate W and processing apparatus A and registering them in the storage unit 32, it is possible to realize extremely appropriate abnormal stop determination in each production process.

  Referring to FIG. 3B, for example, when processing a substrate W whose substrate product number is “BD001”, the standard processing time in a certain processing apparatus A is 10 sec. Moreover, the time which can wait for carrying-in at the time of automatic operation | movement of BD001 from the processing apparatus A of an upstream is 120 sec. Furthermore, when this processing apparatus A finishes processing, when it is carried out to the downstream processing apparatus A, TMout that can wait for acceptance of the downstream processing apparatus A is 120 sec.

  Under such conditions, when a certain processing apparatus A accepts a substrate “BD001”, it waits for loading of the substrate W due to tact and processing specifications until 120 seconds, and the substrate W is loaded after 120 seconds. If not, it can be determined that an abnormal stop has occurred on the upstream side. Similarly, after this processing apparatus A processes the substrate “BD001”, it waits for 120 seconds until the downstream processing apparatus A starts accepting the substrate W, and after 120 seconds, it processes downstream processing. When the apparatus A does not start accepting the substrate W, it can be determined that an abnormal stop has occurred on the downstream side.

  The relationship between the upstream and downstream processing devices A is not only the relationship between different types of devices such as the reflow device 14 and the inspection device 16, but also the relationship between similar devices such as the upstream component mounting machine 12 and the downstream component mounting machine 12. There may be. In any case, TMin and TMout can be set according to the relationship between the product number of the substrate W and the upstream and downstream processing apparatuses A. Therefore, each processing apparatus A stops abnormally before and after that. Can be detected.

  Next, in the present embodiment, a production performance H table 323 (H is an abbreviation for History) is already installed in the processing apparatus A as a standard specification. This production result H table 323 includes {substrate product number, substrate production number, production date, actual processing time, actual TMin, actual TMout} and the like.

  In {Substrate part number}, the substrate part number of the actually manufactured substrate W is registered. As the “substrate product number” at this time, a value read from a barcode or the like attached to the substrate W by the barcode reader 80 provided in the processing apparatus A is registered. Therefore, there may be a case where a substrate product number other than the substrate W registered in the substrate table 321 is also registered.

  {Substrate production number} is a column for registering a number for specifying the actually processed substrate W. The value registered in {substrate production number} may be a value common to all the processing apparatuses A, or may be a value set individually by each processing apparatus A.

  In {manufacturing date}, the processing date of the actually manufactured substrate W is registered.

  In {actual processing time, actual TMin, actual TMout}, “processing time”, “maximum loading waiting time”, and “maximum unloading waiting time” are registered as actual values when the substrate W is processed.

  Next, in this embodiment, a standard value table 324 for automatically registering values registered in the automatic operation condition table 322 is prepared. The standard value table 324 includes {standard processing time, TMin, TMout}. In these columns {standard processing time, TMin, TMout}, default values of {standard processing time, TMin, TMout} of the automatic operation condition table 322 are registered. When the standard value table 324 is provided, the timing at which the substrate part number of the new substrate W is registered in the substrate table 321 is used as a trigger, the default value is read from the standard value table 324 for the substrate part number, and the automatic operation condition table It is possible to automatically register at 322. Alternatively, when an unregistered substrate W is processed, a default value registered in the standard value table 324 can be read and used for a transaction.

  In the present embodiment, since the production result H table 323 and the standard value table 324 are prepared, the following processing can be performed.

  First, referring to FIG. 4, when operating in the automatic operation mode, the control unit 30 performs “standard processing time”, “maximum loading waiting time”, “maximum loading waiting time” in order to perform abnormal stop detection. Need to be set. In this process, the control unit 30 first searches the substrate table 321 (or automatic operation condition table 322) for the “substrate product number” to be produced (step S1). If the searched “substrate product number” is found (YES in step S2), the control unit 30 reads the tuple related to the “substrate product number” from the automatic operation condition table 322 and acquires data. (Step S3). Based on the read data, “standard time”, “maximum loading waiting time”, and “maximum loading waiting time” are set, and subsequent processing is executed based on these set values.

  On the other hand, if the “substrate product number” searched in step S1 is not found (NO in step S2), the control unit 30 first searches the production record H tape 323 for the “substrate product number” (step S1). S5). If the searched “substrate part number” is found (in the case of YES in step S6), the control unit 30 reads the tuple relating to the “substrate part number” from the production record H tape 323 and calculates the data ( Step S7).

  In this calculation process, data relating to the “substrate product number” is totaled. In this tabulation process, the count value for each {actual processing time}, the count value for each {TMin}, and the count value for each {TMout} are tabulated, and values that cover 95% of the total are extracted. Then, the process proceeds to step S4, where “standard time”, “maximum loading waiting time” and “maximum loading waiting time” are set based on the extracted values, and the subsequent processing is executed based on these set values. To do. The counting process described above is an example of the present embodiment. For example, the count value may be 80% or 98%. Moreover, you may change the conditions extracted for every {result processing time, TMin, TMout}.

  On the other hand, when the “substrate product number” searched in step S5 is not found (NO in step S6), the control unit 30 acquires data from the standard value table 324 (step S8). After that, by shifting to step S4, the control unit 30 can reliably set the standard processing time, the maximum transfer waiting time, and the maximum unloading waiting time for the substrate W to be processed. Note that the default values set in the standard value table 324 are preferably set based on the aggregation process executed in step S7 of FIG. However, it may be set based on a process other than the aggregation process executed in step S7 of FIG.

  Referring to FIG. 5, if the default value set in standard value table 324 can be trusted, or if the aggregation process executed in step S7 in FIG. 4 is difficult, steps S4 to S7 in FIG. It may be omitted. In the aspect of FIG. 5, when the “substrate product number” searched in step S <b> 1 is not found (NO in step S <b> 2), step S <b> 8 is executed immediately and based on the default values set in the standard value table 324. Thus, the abnormal stop determination is processed.

  Next, details of this abnormal stop determination will be described. In the following description, a case where an automatic production line executes lot production will be described as an example.

  With reference to FIGS. 1 and 6, in the processing apparatus A provided with the abnormality detection function as described above, the flow of the substrate W during the automatic operation by the carry-in substrate detection sensor 71 and the carry-out substrate detection sensor 72. Is monitored (step S20).

  When it is determined that there is no flow of the substrate W in the state where the flow of the substrate W is monitored, the control unit 30 determines whether or not the operation mode is the automatic operation mode (step S21).

  If it is determined in step S21 that the operation mode is not the automatic operation mode, the program ends.

  On the other hand, if it is determined in step S21 that the operation mode is the automatic operation mode, the control unit 30 resets the counter variable C to 0 and counts the time after detecting the stop of the flow of the substrate W. (Step S22). After starting this counting, the control unit 30 determines whether or not the substrate W has been carried in from the upstream processing apparatus A (step S23). If any unit (processing device A or substrate transport conveyor 21) in the automatic production line 10 has a problem such as a failure, forgetting to turn on the power, or the microprocessor of the control unit 30 is hung up. The substrate W stops at that unit. For this reason, the substrate W is not transported downstream of the unit.

  If it is determined in step S23 that the substrate W has been loaded into the processing apparatus A, the control unit 30 determines whether lot production of the substrate W has been completed (step S24), and lot production has been completed. In the case where the program has been completed, the program is terminated. On the other hand, if the lot production has not been completed, the process returns to step S20 and the monitoring of the substrate W is resumed.

  If it is determined in step S23 that the substrate W has not been loaded into the processing apparatus A, the control unit 30 increments the counter variable C by a unit time (second in the illustrated example) (step S25). It is determined whether the value of the counter variable C after the increment exceeds the “maximum loading waiting time” set in the processing of FIG. 4 or FIG. 5 (step S26).

  For example, in the example shown in FIG. 3B, when the substrate W having the product number “BD002” is processed, the value “120” corresponding to “BD002” of {TMin} is set in FIG. 4 or FIG. 5 is read as the “maximum loading waiting time” set in the process No. 5. Then, the incremented counter variable C is compared with the value “120”, and it is determined whether or not the counted time after the flow of the substrate W stops exceeds the maximum loading waiting time.

  If it is determined in step S26 that the counter variable C is 120 or less, the control unit 30 proceeds to step S23 and monitors whether the substrate W is loaded. On the other hand, if it is determined in step S26 that the counter variable C exceeds 120, the control unit 30 executes an abnormal stop notification processing subroutine (step S27). In this abnormal stop notification processing subroutine, a character string such as “abnormal stop is occurring” is displayed on the display 41 of the display / operation unit 40, and the buzzer 50 and the lighting display device 60 are operated to detect an abnormal stop to the operator. The process which alert | reports is performed. As a result, even if an operator does not install a host computer for an automatic production line, if any trouble occurs in any of the processing devices, such as forgetting the power source or computer hang-up, the processing device in real time It is possible to detect the failure and notify the operator.

  Next, the aspect shown in FIG. 7 will be described.

  The aspect shown in the figure is different in that steps S30 to S32 are executed instead of steps S23 and S25 to S27 in FIG.

  First, in step S30 of FIG. 7, after detecting that the flow of the substrate W has stopped, it is determined whether or not the processing apparatus A holds the substrate W. If any unit (processing device A or substrate transport conveyor 21) in the automatic production line 10 has a problem such as a failure, forgetting to turn on the power, or the microprocessor of the control unit 30 is hung up. The substrate W stops at that unit. For this reason, the substrate W stays upstream from the unit.

  If it is determined in step S30 that the unloading of the substrate W has been completed and the substrate W is not held, the process proceeds to step S24 as in FIG.

  If it is determined in step S30 that the processing apparatus A holds the substrate W, the process proceeds to step S31, and the counter variable C is incremented by unit time (second in the illustrated example) (step S30). S31), it is determined whether or not the value of the counter variable C after the increment exceeds the “maximum carry-out waiting time” set in the processing of FIG. 4 or FIG. 5 (step S32).

  For example, in the example shown in FIG. 3B, when the substrate W having the product number “BD003” is processed, the value “140” corresponding to “BD003” of {TMout} is read in step S32. Then, the incremented counter variable C is compared with the value “140” as the “maximum unloading waiting time” set in the processing of FIG. 4 or 5, and the time counted after the flow of the substrate W stops is the maximum unloading It is determined whether or not the waiting time has been exceeded.

  If it is determined in step S32 that the counter variable C is 140 or less, the control unit 30 proceeds to step S30 and monitors the holding state of the substrate W (whether the substrate W has been unloaded). On the other hand, if it is determined in step S32 that the counter variable C exceeds 140, the control unit 30 executes an abnormal stop notification processing subroutine as in the case of FIG. 6 (step S27). As a result, even if an operator does not install a host computer for an automatic production line, if any trouble occurs in any of the processing devices, such as forgetting the power source or computer hang-up, the processing device in real time It is possible to detect the failure and notify the operator.

  Furthermore, it is possible to implement the embodiment of FIG. FIG. 8 is an example in which the determination of FIG. 6 and the determination of FIG. 7 are combined.

  More specifically, after executing steps S20 to S22 as in the embodiment of FIG. 6, first, the counter variable C is incremented in step S40.

  Next, in step S41, the control unit 30 determines whether or not the processing apparatus A is holding the substrate W.

  If it is determined in step S41 that the processing apparatus A holds the substrate W, the process proceeds to step S42, and the value of the incremented counter variable C is set in the process of FIG. 4 or FIG. It is determined whether or not the “maximum carry-out waiting time” is exceeded. The determination in step S42 is substantially the same process as step S32 in FIG. In the determination of step S42, if the counter variable C exceeds the “maximum carry-out waiting time” set in the processing of FIG. 4 or FIG. A stop notification processing subroutine is executed (step S27).

  On the other hand, in the mode of FIG. 8, when the unloading of the substrate W has been completed in the determination of step S41, or in the determination of step S42, the counter variable C is set to “maximum” set in the process of FIG. 4 or FIG. If it is equal to or less than the “unloading waiting time”, the control unit 30 proceeds to step S43 and determines whether or not the substrate W has been loaded from the upstream processing apparatus A.

  This is because there may be a case where it is not possible to determine whether or not the substrate W remains on the upstream side of the processing apparatus A simply by monitoring whether or not the processing apparatus A itself retains the substrate W. .

  If it is determined in step S43 that the substrate W has been loaded into the processing apparatus A, the control unit 30 determines whether or not lot production of the substrate W has been completed, as in the case of FIG. S24) When the lot production is finished, the program is finished, whereas when the lot production is not finished, the process returns to step S20 and the monitoring of the substrate W is resumed.

  On the other hand, if it is determined in step S43 that the substrate W has not been loaded into the processing apparatus A, the control unit 30 sets the value of the counter variable C to “maximum” set in the processing of FIG. 4 or FIG. It is determined whether or not the “loading waiting time” is exceeded (step S44). The determination in step S44 is the same as step S26 in FIG. If the value of the counter variable C exceeds the “maximum carry-in waiting time” set in the processing of FIG. 4 or FIG. 5, the control unit proceeds to step S27 and executes a subroutine of abnormal stop notification processing. . On the other hand, when the value of the counter variable C is equal to or less than the “maximum loading waiting time” set in the process of FIG. 4 or FIG. 5, the control unit 30 proceeds to step S40 and repeats the above-described process.

  As described above, in the present embodiment, the monitoring means configured by the control unit 30, the carry-in substrate detection sensor 71, and the carry-out substrate detection sensor 72 in any processing apparatus A installed in the automatic production line 10, Since the determination unit configured by the control unit 30 and the notification unit configured by the buzzer 50, the lighting display device 60, and the like are provided, even if the automatic production line 10 does not have a host computer, the automatic production line 10 It is possible to notify the operator that the vehicle has been stopped for a long time. That is, a failure such as a failure or forgetting to turn on the power in one of the units (processing apparatus A or the substrate transfer conveyor 21) of the automatic production line 10, or a malfunction of the microprocessor of the control unit 30 has occurred. If it is, the substrate W stops at that unit. Therefore, the substrate W stays upstream from the unit. Further, the substrate W is not transported downstream of the unit that has caused the problem. Therefore, it is possible to detect an abnormal stop of the automatic production line 10 by monitoring the flow of the substrate W even when the unit that has caused the trouble is in any installation location of the automatic production line 10. And when an abnormal stop is detected, it can be notified by the buzzer 50 provided in the processing apparatus A, so that the operator knows the abnormal stop of the automatic production line 10 without relying on the production management function by the host computer. Can do.

  In the case of the present embodiment, since the carry-in substrate detection sensor 71, the carry-out substrate detection sensor 72, and the control unit 30 that are already installed in the processing apparatus A constitute a monitor unit, a determination unit, and a notification unit, This embodiment can be implemented by an inexpensive method.

  In the automatic production line 10, the substrate W is often temporarily stopped due to characteristics of individual processing apparatuses A and specification settings. Therefore, it is difficult to determine whether the substrate W is abnormally stopped due to a unit failure or is an allowable temporary stop by simply determining whether the substrate W is stopped / flowing. However, in this aspect, for example, as shown in FIG. 3, the stop of the flow of the substrate W is evaluated based on a preset maximum waiting time, and it is determined whether or not it is abnormally stopped. Despite the simple configuration, it is possible to realize accurate abnormal stop detection.

  In the present embodiment, the processing apparatus A includes a storage unit 32 that stores the maximum waiting time for each combination of the processing apparatus A and the substrate W processed by the processing apparatus A. For this reason, in this embodiment, since a suitable maximum waiting time can be set for each combination based on the combination of the processing apparatus A and the substrate W, it is possible to realize a precise abnormal stop determination.

  In the present embodiment, the storage unit 32 uses the automatic operation condition table 322 (FIG. 3 (FIG. 3 ()) as the maximum loading waiting time set based on the substrate conveyance timing in the previous process of loading the substrate W into the processing apparatus A. (See A)), {TMin} is set, and the value of {TMin} is stored as the maximum waiting time. Therefore, in the present embodiment, a suitable maximum waiting time can be set according to the processing characteristics in the previous process of the processing apparatus A that monitors the flow of the substrate W. Accordingly, it is possible to precisely determine whether the stop of the flow of the substrate W is an abnormal stop or an allowable temporary stop.

  In the present embodiment, the storage unit 32 uses the automatic operation condition table 322 (FIG. 3 ()) as the maximum unloading waiting time set based on the substrate unloading timing for the next process in which the processing apparatus A unloads the substrate W. {TMout} is set in (A)), and the value of {TMout} is stored as the maximum waiting time. For this reason, in this embodiment, a suitable maximum waiting time can be set according to the processing characteristics in the next process of the processing apparatus A that monitors the flow of the substrate W. Accordingly, it is possible to precisely determine whether the stop of the flow of the substrate W is an abnormal stop or an allowable temporary stop.

  As described above, according to the present embodiment, in the automatic production line 10 using the plurality of processing apparatuses A, the control unit 30, the carry-in board detection sensor 71, and the carry-out board detection sensor 72 of the processing apparatus A Since the flow of W can be monitored and when the flow of the substrate W is stopped, it can be accurately determined whether or not it is abnormally stopped. Therefore, the automatic production can be performed without requiring communication with the host computer. There is a remarkable effect that an abnormal stop at the line 10 can be accurately notified.

  The present invention is not limited to the embodiment described above, and it goes without saying that various modifications can be made without departing from the scope of the present invention.

  For example, as shown in FIG. 9, the present invention can also be applied to a so-called dual lane automatic production line. In the dual lane method, at least a part (mainly component mounting stations) of substrate transport paths (lanes) are provided in parallel, and processing capacity is improved by installing a processing device for each lane. An automated production system. The dual lane method can save space and energy in the line and can diversify the manner of transporting the substrate and the manner of mounting the components on the substrate. In the dual lane method, only the component mounting stations are the first and second lanes, and the screen printing station and the reflow station have only one lane specification, or the screen printing station has two lanes in parallel. There are various aspects such as specifications in which the screen printing apparatus 11 is disposed as the processing apparatus A. FIG. 9 illustrates an automatic production system of a type in which there are two lanes both upstream and downstream of the component mounting station.

  It is preferable that the processing apparatus A having a function of notifying an abnormal stop in the dual lane system is installed at a position where an abnormal stop can be detected for any route passing through any lane. Therefore, the function of notifying an abnormal stop is provided in the processing apparatus A installed on a path that is in a serial relationship with two parallel lanes. For example, if a part is one lane, the control unit 30 serving as the monitoring means, the carry-in substrate detection sensor 71, the carry-out substrate detection sensor 72 described above is determined in the processing apparatus A arranged in the station of the one lane. The control unit 30 as a means and the buzzer 50, the lighting display device 60, etc. as a notification means should just be provided. As shown in FIG. 9, in a completely parallel mode, a function of notifying an abnormal stop to any of the processing devices A in each lane is provided. In this aspect, even in the so-called dual lane automatic production line, it is possible to provide a suitable abnormal stop notification.

  3 may be associated with {Substrate part number} in the automatic operation condition table 322. The production result H table 323 shown in FIG. In that case, the data of the substrate W to be processed must be registered in the substrate table 321 and the automatic operation condition table 322. For the registration of a new substrate W, the standard value table 324 is used. Since it becomes easy to use, it is more preferable in terms of production management that the production result H table 323 is associated with the automatic operation condition table 322.

  Further, instead of the standard value table 324, default values may be registered in the automatic operation condition table 322. Specifically, a common board part number (for example, “BD_COMMON”) is set, and if no data is found in the search process (step S1) of FIG. 4 or FIG. 5, refer to the common board part number tuple. However, it may be a specification for setting the value. When such a specification is adopted, the standard value table 324 can be omitted.

  In addition, it goes without saying that various modifications are possible within the scope of the claims of the present invention.

10 Automatic production line 11 Screen printing equipment (an example of processing equipment)
12 Component mounter (an example of processing equipment)
14 Reflow device (an example of a processing device)
16 Inspection device (an example of a processing device)
21 substrate transport conveyor 30 control unit 31 arithmetic unit 32 storage unit 40 operation unit 41 display 50 buzzer 60 lighting display device 70 sensors 71 carry-in substrate detection sensor 72 carry-out substrate detection sensor 321 substrate table 322 automatic operation condition table A processing device C counter Variable Cin Counter variable Cout Counter variable TMin Maximum loading waiting time TMout Maximum loading waiting time W Substrate

Claims (7)

In an automatic production line comprising a plurality of processing devices arranged in series according to a substrate processing step, and transporting a plurality of substrates to the processing device in the order of the processing steps,
Monitoring means for monitoring the flow of the substrate during automatic operation of the automatic production line;
A determination unit for determining whether or not the flow stop time exceeds a preset maximum waiting time when the monitoring unit detects the stop of the flow of the substrate;
When the determination means determines that the maximum waiting time is exceeded, a notification means for notifying abnormal stop of automatic driving ;
A storage unit that stores data necessary for determination by the determination unit is provided in at least one of the processing devices ,
The storage unit
Substrate table for storing information on substrates to be processed, and automatic operation condition table for storing operation conditions for each substrate, which is associated with the substrate table and includes a maximum waiting time for each substrate registered in the substrate table. A standard value table that stores default values that can be set in the automatic operation condition table;
Including
The determination means searches the substrate table for information relating to the substrate to be processed, and if the substrate table has information relating to the substrate to be processed in the searching process, sets the processing conditions relating to the substrate. Based on the maximum waiting time read from the automatic driving condition table and stored in the automatic driving condition table, the substrate to be processed in the process of executing the above determination on the stop time of the flow and the process of searching When the information on the substrate table is not present, the process for executing the above determination on the stoppage time of the flow is executed based on the default value stored in the standard value table. And automatic production line. In the automatic production line according to claim 1,
The automatic operation condition table of the storage unit stores, as the maximum waiting time, a maximum loading waiting time set based on a substrate conveying timing in a previous process of loading the substrate into the processing apparatus. To automatic production line. In the automatic production line according to claim 1 or 2,
The automatic operation condition table of the storage unit stores, as the maximum waiting time, a maximum carry-out waiting time set based on a substrate carrying timing to the next process in which the processing apparatus carries out the substrate. To automatic production line. In the automatic production line according to any one of claims 1 to 3 ,
At least a part of the path for transporting the substrate is a dual lane system composed of two parallel lanes, and the monitoring means, the determining means, and the notifying means include the two parallel lanes. An automatic production line characterized in that the automatic production line is provided in the processing device installed in a path having a serial relationship. In the processing equipment arranged in series on the substrate transport path of the automatic production line according to the substrate processing process,
Monitoring means for monitoring the flow of the substrate during automatic operation of the automatic production line;
A determination unit for determining whether or not the flow stop time exceeds a preset maximum waiting time when the monitoring unit detects the stop of the flow of the substrate;
When the determination means determines that the maximum waiting time is exceeded, a notification means for notifying abnormal stop of automatic driving ;
A storage unit for storing data necessary for determination by the determination unit ;
The storage unit
Substrate table for storing information on substrates to be processed, and automatic operation condition table for storing operation conditions for each substrate, which is associated with the substrate table and includes a maximum waiting time for each substrate registered in the substrate table. A standard value table that stores default values that can be set in the automatic operation condition table;
Including
The determination means searches the substrate table for information relating to the substrate to be processed, and if the substrate table has information relating to the substrate to be processed in the searching process, sets the processing conditions relating to the substrate. Based on the maximum waiting time read from the automatic driving condition table and stored in the automatic driving condition table, the substrate to be processed in the process of executing the above determination on the stop time of the flow and the process of searching When the information on the substrate table is not present, the process for executing the above determination on the stoppage time of the flow is executed based on the default value stored in the standard value table. A processing device. The processing apparatus according to claim 5 , wherein
The automatic operation condition table of the storage unit stores, as the maximum waiting time, a maximum loading waiting time set based on a substrate conveying timing in a previous process of loading the substrate into the processing apparatus. Processing equipment. The processing apparatus according to claim 5 or 6 ,
The automatic operation condition table of the storage unit stores, as the maximum waiting time, a maximum carry-out waiting time set based on a substrate carrying timing to the next process in which the processing apparatus carries out the substrate. Processing equipment.

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