Component mounting machine

Abstract

To easily grasp whether or not a mounting operation to a plurality of substrates is efficiently performed in a component mounting machine comprising a plurality of substrate transfer devices.SOLUTION: A component mounting machine comprises: a component supply device which supplies an electronic component; a first substrate transfer device which transfers a first substrate to a first work position within the component mounting machine and transfers the first substrate from the first work position to the outside of the component mounting machine; a second substrate transfer device which transfers a second substrate to a second work position within the component mounting machine and transfers the second substrate from the second work position to the outside of the component mounting machine; a component moving device which is capable of moving the electronic component supplied from the component supply device between the component supply device and the first substrate located at the first work position and movable between the component supply device and the second substrate located at the second work position; and a display device which displays a time in which the first substrate is transferred to the outside of the component mounting machine by the first substrate transfer device and a time in which the second substrate is transferred to the outside of the component mounting machine by the second substrate transfer device in a time-sequential manner.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The technology disclosed in this specification relates to a component mounter that mounts electronic components on a board. [Background technology]

[0002] Some mounters that mount electronic components on boards are provided with a first board transport device and a second board transport device, and can mount electronic components on a first board transported by the first board transport device and a second board transported by the second board transport device. In such mounters, electronic components are mounted on one of the first and second boards, and then mounted on the other board. This allows electronic components to be mounted on one board while the other board is being transported out, improving productivity.

[0003] A technology has been developed for displaying to an operator that a mounting operation is being performed normally in a component mounter. For example, Patent Document 1 discloses a technology for displaying the operating status of each of a plurality of component mounters in a component mounting line made up of the plurality of component mounters. Patent Document 1 displays a list of a plurality of component mounters so that the operating status of each mounter (e.g., processing state, waiting for post-processing, waiting for component supply, waiting for pre-processing, etc.) can be understood at a glance. This list display is displayed in chronological order. The component mounter in Patent Document 1 is equipped with a first board transport device and a second board transport device, and is capable of mounting electronic components on two boards. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2009-54051 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the technology of Patent Document 1, the operating status of each of a plurality of mounters can be grasped by displaying a list. Therefore, it is easy to grasp which mounter is having a problem in a component mounting line consisting of a plurality of mounters. However, the display makes it difficult to grasp whether the mounting operation for the board transported by the first board transport device and the mounting operation for the board transported by the second board transport device are being performed efficiently in each mounter.

[0006] This specification discloses a technique that makes it possible to easily grasp whether mounting operations on multiple boards are being performed efficiently in a component mounter having multiple board transport devices. [Means for solving the problem]

[0007] The component mounter disclosed in this specification mounts electronic components on a board. The component mounter includes a component supplying device that supplies electronic components, a first board transporting device that transports a first board to a first work position in the component mounter and transports it from the first work position to the outside of the component mounter, a second board transporting device that transports a second board to a second work position in the component mounter and transports it from the second work position to the outside of the component mounter, a component moving device that allows the electronic components supplied from the component supplying device to move between the component supplying device and the first board located at the first work position and between the component supplying device and the second board located at the second work position, and a display device that chronologically displays the time when the first board is transported outside the component mounter by the first board transporting device and the time when the second board is transported outside the component mounter by the second board transporting device.

[0008] In the above mounter, the time when the first board is unloaded from the mounter by the first board transport device and the time when the second board is unloaded from the mounter by the second board transport device can be visually grasped in chronological order, so that it is easy to grasp whether the mounting process on the first board and the mounting process on the second board are being performed efficiently. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a diagram showing a schematic configuration of a component mounter according to an embodiment. [Diagram 2] FIG. 2 is a cross-sectional view taken along line II-II in FIG. [Diagram 3] FIG. 2 is a block diagram showing a control system of the component mounter according to the embodiment. [Figure 4] FIG. 13 is a diagram showing a display screen displaying a graph relating to removal times and removal time intervals of the first circuit board and the second circuit board. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The main features of the embodiment described below are listed below. Note that the technical elements described below are independent technical elements that exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing.

[0011] In the mounter disclosed in the present specification, the display device may display a graph with one axis representing the elapsed time from a reference time and the other axis representing the carry-out time interval of the first board and the second board. The graph may display a first point cloud plotting the elapsed time from a reference time, which is the time when the first board was carried out, and the carry-out elapsed time of the first board, for each of a plurality of first boards carried out from the mounter within a predetermined time from the reference time, and a second point cloud plotting the elapsed time from a reference time, which is the time when the second board was carried out, and the carry-out elapsed time of the second board, for each of a plurality of second boards carried out from the mounter within a predetermined time from the reference time. The carry-out time interval of the first board may be the time taken from when one of the first board and the second board is carried out of the mounter immediately before the first board to when the first board is carried out of the mounter. The carry-out time interval of the second board may be the time taken from when one of the first board and the second board is carried out of the component mounter immediately before the second board to when the second board is carried out of the component mounter. With this configuration, the carry-out time interval of the first board and the carry-out time interval of the second board can be expressed in a graph. In addition, since the carry-out time interval is the time from when the first board or the second board is carried out immediately before until the board is carried out, it is possible to grasp how long it took to perform the mounting process on the board. Therefore, it becomes easy to visually grasp whether the mounting process on the first board and the mounting process on the second board are being performed efficiently.

[0012] In the mounter disclosed in this specification, the display device may display the first point group in a first manner and the second point group in a second manner different from the first manner. With this configuration, the carry-out time interval of the first board and the carry-out time interval of the second board are displayed in different manners, so that each of the carry-out time intervals of the first board and the carry-out time interval of the second board can be more easily understood. In addition, it can be easily understood that one of the first board and the second board has been carried out consecutively.

[0013] In the mounter disclosed in the present specification, the display device may display a connection line that connects the first point group and the second point group in chronological order on the graph. With this configuration, the order in which the first board and the second board are carried out can be easily understood.

[0014] The mounter disclosed in this specification may further include a selection means for selecting a specific point from the first point group and the second point group displayed on the graph. The display device may be capable of displaying information regarding an abnormal operation that occurred in the mounting process of the mounter at the elapsed time corresponding to the specific point selected by the selection means. With this configuration, it is possible to grasp the operation of the mounter corresponding to the first board unloading time interval (first point group) or the second board unloading time interval (second point group) on the graph. For example, it is possible to confirm what kind of abnormality occurred in the mounter at the time when the unloading time interval was not normal on the graph (for example, a specific first point or second point). Therefore, it is possible to grasp the abnormality that occurred when the board was not unloaded at the normal time interval. EXAMPLES

[0015] A component mounter 10 according to an embodiment will be described with reference to the drawings. The component mounter 10 is a device that mounts electronic components 4 onto circuit boards 2a and 2b. The component mounter 10 is also called an electronic component mounting device or a chip mounter. Usually, the component mounter 10 is installed alongside other board work machines such as a solder printer and a board inspection machine, forming a series of mounting lines.

[0016] 1 and 2, the component mounter 10 includes a plurality of component feeders 12, a feeder holder 14, two board conveyors 20a, 20b, a mounting head 16, a head moving device 18, a control device 26, and a touch panel 24. A management device 8 configured to be able to communicate with the component mounter 10 is disposed outside the component mounter 10.

[0017] Each of the component feeders 12 accommodates a plurality of electronic components 4. The component feeders 12 are detachably attached to the feeder holder 14, and supply the electronic components 4 to the mounting head 16. The specific configuration of the component feeders 12 is not particularly limited. Each of the component feeders 12 may be, for example, a tape feeder that supplies a plurality of electronic components 4 accommodated on a tape, a tray feeder that supplies a plurality of electronic components 4 accommodated on a tray, or a bulk feeder that supplies a plurality of electronic components 4 randomly accommodated in a container.

[0018] Feeder holding unit 14 has a plurality of slots, and component feeders 12 can be removably installed in each of the plurality of slots. Feeder holding unit 14 may be fixed to component mounter 10, or may be detachable from component mounter 10.

[0019] The board conveyors 20a and 20b transport the circuit boards 2a and 2b in the X direction. The two board conveyors 20a and 20b are installed side by side in the Y direction. In the following, the board conveyor 20a installed on the component feeder 12 side (-Y direction side) may be referred to as the "first board conveyor 20a", and the board conveyor 20b installed at a position (+Y direction side) farther from the component feeder 12 than the first board conveyor 20a may be referred to as the "second board conveyor 20b". The board conveyors 20a and 20b are arranged with a gap in the Y direction and are configured as a pair of conveyors extending parallel to the X direction. The board conveyors 20a and 20b receive the circuit boards 2a and 2b from a component mounter (or other board work machine such as a solder printer) adjacent to one side and transport them to a preset component mounting position. When mounting of the electronic components 4 on the circuit boards 2a and 2b is completed, the board conveyors 20a and 20b send out the circuit boards 2a and 2b to an adjacent component mounter (or other board work machine such as a board inspection machine) on the other side. The board conveyors 20a and 20b in this embodiment are belt conveyors (not shown) that drive a conveyer belt by a motor, but the specific configuration of the board conveyors 20a and 20b is not particularly limited. For example, the board conveyors 20a and 20b may be roller conveyors. In addition, the pair of board conveyors 20a and 20b move in the Y direction by driving an actuator (not shown), and can move close to and away from each other. The first board conveyor 20a and the second board conveyor 20b are configured to be independently drivable.

[0020] The mounting head 16 has a nozzle 6 that picks up the electronic component 4. The nozzle 6 is detachably attached to the mounting head 16. The mounting head 16 is capable of moving the nozzle 6 in the Z direction (here, the vertical direction) to move the nozzle 6 closer to and away from the component feeder 12 and the circuit boards 2a and 2b. The mounting head 16 can pick up the electronic component 4 from the component feeder 12 with the nozzle 6, and can mount the electronic component 4 picked up by the nozzle 6 on the circuit boards 2a and 2b. Note that the mounting head 16 is not limited to having a single nozzle 6, and may have multiple nozzles 6.

[0021] The head moving device 18 moves the mounting head 16 between the component feeder 12 and the second board conveyor 20b. That is, the head moving device 18 moves the mounting head 16 between the component feeder 12 and the circuit board 2a transported by the first board conveyor 20a, and also moves the mounting head 16 between the component feeder 12 and the circuit board 2b transported by the second board conveyor 20b. When moving the mounting head 16 between the circuit board 2b transported from the component feeder 12 by the second board conveyor 20b, the mounting head 16 passes above the circuit board 2a transported by the first board conveyor 20a. As an example, the head moving device 18 of this embodiment is an XY robot that moves the moving base 18a in the X direction and the Y direction, and the mounting head 16 is fixed to the moving base 18a. Note that the mounting head 16 is not limited to being fixed to the moving base 18a, and may be detachably attached to the moving base 18a.

[0022] The control device 26 is configured using a computer having a CPU and a storage device. The control device 26 controls the operation of each part of the component mounter 10 based on the production program transmitted from the management device 8. As shown in Fig. 3, the control device 26 is connected to the mounting head 16, the head moving device 18, the first board conveyor 20a, the second board conveyor 20b, and the touch panel 24, and controls each part of the mounting head 16, the head moving device 18, the first board conveyor 20a, the second board conveyor 20b, and the touch panel 24. The control device 26 also stores in a memory (not shown) the content of the operation of each part and the time when the operation was performed.

[0023] In addition, the control device 26 generates a graph relating to the time (removal time) at which the circuit boards 2a, 2b are removed from the component mounter 10 and the removal time interval of the circuit boards 2a, 2b. The graph will be described in detail later. The control device 26 causes the touch panel 24 to display the generated graph.

[0024] The touch panel 24 is a display device that provides the worker with various information about the component mounter 10, and is also an input device that accepts instructions and information from the worker. For example, the touch panel 24 displays the above-mentioned graph (described in detail later) generated by the control device 26. The touch panel 24 also accepts an instruction to select a specific point (described in detail later) on the graph. That is, the worker can select a specific point on the graph displayed on the touch panel 24. When a specific point is selected, the touch panel 24 displays information about the specific point (described in detail later). In this embodiment, the component mounter 10 includes the touch panel 24, but is not limited to such a configuration. For example, the component mounter 10 only needs to include a display device and an input device, and may include a monitor and input means such as a keyboard and a mouse instead of the touch panel 24.

[0025] In this embodiment, the component mounter 10 includes a first board conveyor 20a and a second board conveyor 20b. Therefore, the component mounter 10 mounts electronic components 4 on each of the circuit board 2a (hereinafter also referred to as the first circuit board 2a) transported by the first board conveyor 20a and the circuit board 2b (hereinafter also referred to as the second circuit board 2b) transported by the second board conveyor 20b. The component mounter 10 usually mounts electronic components 4 on each of the first circuit board 2a and the second circuit board 2b in the following procedure.

[0026] First, the control device 26 carries the first circuit board 2a into a predetermined work position (hereinafter, also referred to as the first work position) in the component mounter 10 by the first board conveyor 20a. Next, the control device 26 mounts the electronic components 4 on the first circuit board 2a located at the first work position. The electronic components 4 are mounted in the following procedure. First, the control device 26 moves the moving base 18a so that the nozzle 6 is located above the supply position (not shown) of the electronic components 4 of the component feeder 12. Next, the control device 26 moves the nozzle 6 downward, and the nozzle 6 picks up the electronic components 4. Next, the control device 26 moves the nozzle 6 upward in a state in which the nozzle 6 picks up the electronic components 4. Then, the control device 26 moves the moving base 18a so that the picked up electronic components 4 are located above the predetermined mounting position of the first circuit board 2a. Finally, the control device 26 moves the nozzle 6 downward, and the electronic components 4 are mounted at the predetermined mounting position.

[0027] Furthermore, while controller 26 is executing the process of mounting electronic components 4 onto first circuit board 2a, controller 26 causes second board conveyor 20b to carry second circuit board 2b into a predetermined work position (hereinafter also referred to as the second work position) within component mounter 10. That is, the process of mounting electronic components 4 onto first circuit board 2a and the carrying of second circuit board 2b into the second work position are executed simultaneously.

[0028] When the mounting process of the electronic components 4 on the first circuit board 2a is completed, the control device 26 mounts the electronic components 4 on the second circuit board 2b located at the second work position. As described above, the second circuit board 2b is carried into the second work position while the mounting process of the electronic components 4 on the first circuit board 2a is being executed. Therefore, the mounting process operation does not need to be stopped to wait for the second circuit board 2b to be carried in, improving productivity.

[0029] Moreover, while the control device 26 is executing the mounting process of the electronic components 4 onto the second circuit board 2b, the control device 26 causes the first board conveyor 20a to carry out the first circuit board 2a on which the electronic components 4 have been mounted, out of the component mounter 10, and then causes the first board conveyor 20a to carry in the next first circuit board 2a (i.e., the first circuit board 2a before the electronic components 4 are mounted) to the first work position. The first circuit board 2a is carried out from the first work position and carried in to the first work position while the control device 26 is executing the mounting process of the electronic components 4 onto the second circuit board 2b. Therefore, it is not necessary to stop the mounting process operation to wait for the first circuit board 2a to be carried out and carried in, improving productivity.

[0030] During the component mounting process, the mounting process onto the first circuit board 2a and / or the second circuit board 2b may be stopped. For example, when the electronic components 4 in the component feeder 12 that supplies the electronic components 4 to the first circuit board 2a or the second circuit board 2b run out, or when a malfunction occurs in the component mounter 10, and work by an operator becomes necessary, the mounting process onto the first circuit board 2a and / or the second circuit board 2b is stopped. For example, when the mounting head 16 malfunctions, it becomes impossible to perform the mounting process onto either the first circuit board 2a or the second circuit board 2b. In such a case, both the mounting process onto the first circuit board 2a and the mounting process onto the second circuit board 2b are stopped. In addition, if the electronic components 4 mounted on only one of the first circuit board 2a and the second circuit board 2b run out, or if a failure occurs on only one of the first board conveyor 20a and the second board conveyor 20b, mounting processing cannot be performed on the one of the first circuit board 2a and the second circuit board 2b where the abnormality occurs, but mounting processing can be performed on the other. In such a case, mounting processing is stopped for the circuit board 2a, 2b where the abnormality occurs, and mounting processing is continued for the other circuit board 2a, 2b where no abnormality occurs. Therefore, in such a case, only the other circuit board 2a, 2b where no abnormality occurs is carried out.

[0031] Here, the graph relating to the above-mentioned carry-out times and carry-out time intervals of the first circuit board 2a and the second circuit board 2b will be described. As described above, the memory (not shown) of the control device 26 stores the operation details and the time when the operation was performed for each part of the component mounter 10. The control device 26 generates a graph relating to the carry-out times and carry-out time intervals of the first circuit board 2a and the second circuit board 2b based on the operations of the first board conveyor 20a and the second board conveyor 20b stored in the memory. The control device 26 causes the touch panel 24 to display the generated graph.

[0032] FIG. 4 shows a display screen displaying a graph relating to the unloading time and the unloading time interval of the first circuit board 2a and the second circuit board 2b. In the graph of FIG. 4, the horizontal axis indicates the elapsed time from a reference time (for example, the start time of the mounting process by the component mounter 10), and the vertical axis indicates the unloading time interval of the first circuit board 2a or the second circuit board 2b. The unloading time interval indicates the time taken from the immediately preceding unloading of the circuit board 2a or 2b from the component mounter 10 to the next unloading of the circuit board 2a or 2b from the component mounter 10. The unloading time interval will be explained using point B in FIG. 4 as an example. In FIG. 4, point B is the unloading time interval of the second circuit board 2b, and point A is the unloading time interval of the first circuit board 2a. In FIG. 4, point B has a unloading time interval of 30 seconds. This indicates that the time taken from the time when first circuit board 2a corresponding to point A, which was discharged immediately before second circuit board 2b corresponding to point B, was discharged to the time when second circuit board 2b corresponding to point B was discharged, was 30 seconds. Control device 26 calculates the discharge time interval from the time when first board conveyor 20a discharged first circuit board 2a and the time when second board conveyor 20b discharged second circuit board 2b, which are stored in memory (not shown).

[0033] In addition, in the graph of FIG. 4, the points corresponding to the first circuit board 2a and the points corresponding to the second circuit board 2b are displayed in different ways. Specifically, the first circuit board 2a is plotted as a triangle (for example, point A), and the second circuit board 2b is plotted as a circle (for example, point B). The first circuit boards 2a are all displayed in the same way (triangles in FIG. 4), and the second circuit boards 2b are all displayed in the same way (circles in FIG. 4). Note that as long as the first circuit board 2a and the second circuit board 2b are plotted in different ways, they may be displayed with symbols other than triangles and circles, or may be displayed in different colors (for example, red and blue, etc.). By displaying the points corresponding to the first circuit board 2a and the points corresponding to the second circuit board 2b in different ways, it is easy to determine whether each point in the graph corresponds to the first circuit board 2a or the second circuit board 2b.

[0034] 4, a connection line L is superimposed between adjacent points in the time series. By connecting adjacent points in the time series with the connection line L, it is easy to visually grasp whether the first circuit board 2a and the second circuit board 2b were discharged alternately or whether one of them was discharged consecutively.

[0035] By displaying the graph configured as above on the touch panel 24, the worker can visually grasp from the displayed graph whether the mounting process is normally performed on the first circuit board 2a and the second circuit board 2b. For example, in the graph of FIG. 4, in periods D1 and D3, the ejection time interval of the first circuit board 2a is 16 seconds, and the ejection time interval of the second circuit board 2b is 30 seconds, and both ejection time intervals are approximately constant and do not become longer. This shows that the first circuit board 2a and the second circuit board 2b are ejected at normal time intervals. In addition, the points corresponding to the first circuit board 2a and the points corresponding to the second circuit board 2b are alternately connected by the connection line L. This shows that the first circuit board 2a and the second circuit board 2b are ejected alternately. Therefore, the worker can grasp that the mounting process is normally performed on the first circuit board 2a and the second circuit board 2b in periods D1 and D3.

[0036] On the other hand, in the periods D2 and D4, the carry-out time interval of the first circuit board 2a is longer than 16 seconds, at 20 seconds and 25 seconds. Also, the carry-out time interval of the second circuit board 2b is longer than 30 seconds, at 32 seconds and 38 seconds. In this way, when the carry-out time interval is long, there is a possibility that an abnormality occurred during the mounting process on the circuit boards 2a and 2b, and the mounting process became longer. Also, in the period D2, there is a period in which only the second circuit board 2b is continuously carried out. In this case, there is a possibility that an abnormality occurred in the mounting process on the first circuit board 2a, and the mounting process on the first circuit board 2a was not performed normally. Also, in the period D4, only the first circuit board 2a is continuously carried out, or only the second circuit board 2b is continuously carried out. Therefore, in the period D4, there is a possibility that an abnormality occurred in the mounting process on the first circuit board 2a, or an abnormality occurred in the mounting process on the second circuit board 2b. In this way, by displaying a graph relating to the removal time and removal time interval of the first circuit board 2a and the second circuit board 2b on the touch panel 24, the worker can easily understand whether the mounting process onto the first circuit board 2a and the mounting process onto the second circuit board 2b have been performed efficiently or not.

[0037] Also, the worker can select a specific point on the graph using the touch panel 24. When a specific point (for example, point A or point B) is selected, the control device 26 judges whether or not an abnormality has occurred in the mounting process on the circuit boards 2a and 2b corresponding to the selected specific point. Specifically, the control device 26 identifies the operation performed during the mounting process on the circuit boards 2a and 2b from the operation of each part of the component mounter 10 stored in a memory (not shown). Next, the control device 26 judges whether or not there is an abnormal operation different from a normal operation in the identified operation. If there is no abnormality in the operation during the mounting process on the circuit boards 2a and 2b corresponding to the selected point, the control device 26 does not display any additional items on the touch panel 24 and does not change the display. The control device 26 may cause the touch panel 24 to display a message that there was no abnormality or that the operation was normal.

[0038] On the other hand, if there is an abnormality in the operation during the mounting process on the circuit boards 2a, 2b corresponding to the selected point, the control device 26 displays information about the abnormality on the touch panel 24. Examples of the abnormalities that may be displayed include waiting for parts replenishment, occurrence of a recovery operation, recovery up, and device error.

[0039] "Waiting for component replenishment" indicates that the electronic components 4 in the component feeder 12 have run out. The control device 26 stores the number of remaining electronic components 4 in the component feeder 12. When the electronic components 4 in the component feeder 12 run out during mounting processing on the circuit board 2a or 2b corresponding to the selected point, "Waiting for component replenishment" is displayed. When the electronic components 4 mounted on both the first circuit board 2a and the second circuit board 2b run out, both the mounting processing on the first circuit board 2a and the mounting processing on the second circuit board 2b are stopped until the missing electronic components 4 are replenished. For example, when a point with a long carry-out time interval is selected in the graph of FIG. 4, "Waiting for component replenishment" may be displayed on the touch panel 24. Also, when the electronic components 4 mounted on only one of the first circuit board 2a and the second circuit board 2b run out, the mounting processing on one of the circuit boards 2a and 2b is stopped, while the mounting processing on the other circuit boards 2a and 2b is continuously performed. For example, in the graph of FIG. 4, when a point where only one of the first circuit board 2a and the second circuit board 2b is plotted continuously is selected, the touch panel 24 may display that a part is waiting to be replenished.

[0040] The occurrence of a recovery operation indicates that a specific operation in the mounting process has been repeated (that a recovery operation has been executed). For example, if the nozzle 6 is unable to pick up the electronic component 4 despite having executed the operation of picking up the electronic component 4 with the nozzle 6, the operation of picking up the electronic component 4 with the nozzle 6 is executed again. Also, if an image captured by an imaging device (not shown) in the component mounter 10 cannot be processed, the imaging operation by the imaging device is executed again. In this way, when a recovery operation for re-executing a specific operation is executed, the occurrence of a recovery operation is displayed. When a recovery operation is executed, the mounting process time is extended by the amount of the recovery operation. For example, when a point with a long carry-out time interval is selected in the graph of FIG. 4, the touch panel 24 may display the occurrence of a recovery operation.

[0041] Recovery up indicates that a specific operation in the mounting process has been repeated a predetermined number of times. When a recovery operation is performed, the operation may be successful, but if a state (e.g., a malfunction, etc.) occurs that requires work by an operator, the operation will not be successful no matter how many times the recovery operation is repeated. If the specific operation is not successful even after the recovery operation is performed a predetermined number of times, the mounting process is stopped. The predetermined number of times can be set in advance and is not particularly limited. In this embodiment, it is three times, but it may be less than three times or more than three times. When the recovery operation is performed a predetermined number of times, the mounting process is stopped. After that, both or either one of the circuit boards 2a and 2b will not be discharged until the problem is solved by the operator's work. For example, in the graph of FIG. 4, if a point with a long discharge time interval or a point where only one of the first circuit board 2a and the second circuit board 2b is plotted continuously is selected, it may be displayed as recovery up.

[0042] An equipment error indicates that an abnormality has occurred in an equipment within the component mounter 10. Examples of equipment errors include a failure of the mounting head 16, a transport error in which the first board conveyor 20a or the second board conveyor 20b cannot transport the circuit boards 2a, 2b, and the like. For example, in the graph of FIG. 4, if a point with a long carry-out time interval is selected, it may be displayed as an equipment error (e.g., a failure of the mounting head 16). Also, if a point where only one of the first circuit board 2a and the second circuit board 2b is plotted continuously is selected, it may be displayed as an equipment error (e.g., a transport error).

[0043] In this embodiment, when a specific point on the graph is selected, the control device 26 displays on the touch panel 24 an abnormality that occurred during the mounting process of the circuit boards 2a and 2b corresponding to the selected specific point. This allows the operator to easily check the abnormality that occurred during the mounting process of the circuit boards 2a and 2b. For example, the operator can easily see from the graph that the take-out time interval is getting longer or that one of the circuit boards 2a and 2b is being taken out continuously. In this way, if the circuit boards 2a and 2b are not taken out at normal time intervals, it is considered that some abnormality has occurred. When a specific point on the graph is selected, an abnormality that occurred during the mounting process of the circuit boards 2a and 2b corresponding to the selected specific point is displayed on the touch panel 24, allowing the operator to easily understand what kind of abnormality has occurred.

[0044] Points to note regarding the component mounter 10 described in the embodiment will be described below. The first circuit board 2a in the embodiment is an example of a "first board", the second circuit board 2b is an example of a "second board", the component feeder 12 is an example of a "component supplying device" and an example of a "second board", the first board conveyor 20a is an example of a "first board transporting device", the second board conveyor 20b is an example of a "second board transporting device", the head moving device 18 is an example of a "component moving device", and the touch panel 24 is an example of a "display device" and a "selecting means".

[0045] Although specific examples of the technology disclosed in this specification have been described in detail above, these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and variations of the specific examples exemplified above. Furthermore, the technical elements described in this specification or drawings exhibit technical utility alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. Furthermore, the technology exemplified in this specification or drawings achieves multiple objectives simultaneously, and achieving one of the objectives itself has technical utility.

[0046] This specification also discloses the technical idea of ​​changing "the component mounter recited in claim 3" to "the component mounter recited in claim 2 or 3" in claim 4, and the technical idea of ​​changing "the component mounter recited in claim 2" to "the component mounter recited in any one of claims 2 to 4" in claim 5. [Explanation of symbols]

[0047] 2a: 1st circuit board 2b: 2nd circuit board 4: Electronic components 6: Suction nozzle 8: Management device 10: Component mounting machine 12: Parts feeder 14: Feeder holder 16: Mounting head 18: Head moving device 20a: First board conveyor 20b: Second board conveyor 24: Touch panel 26: Control device

Claims

1. A component mounter that mounts electronic components on a substrate, a component supplying device that supplies electronic components; a first board transport device that transports a first board to a first work position within the component mounter and transports the first board from the first work position to outside the component mounter; a second board transport device that transports a second board to a second work position within the component mounter and transports the second board from the second work position to outside the component mounter; a component moving device that allows the electronic components supplied from the component supply device to be moved between the component supply device and the first board located at the first work position, and to be moved between the component supply device and the second board located at the second work position; a display device that chronologically displays a time when the first board is transported outside the mounter by the first board transport device and a time when the second board is transported outside the mounter by the second board transport device; A component mounting machine comprising:

2. the display device displays a graph having an axis representing the elapsed time from a reference time and an axis representing a time interval between the removal of the first substrate and the second substrate; The graph is a first point cloud obtained by plotting, for each of the plurality of first boards carried out from the mounter within a predetermined time from the reference time, the elapsed time from the reference time at which the first board was carried out and the carry-out elapsed time of the first board; displaying a second point cloud in which, for each of the second boards that have been carried out from the mounter within a predetermined time from the reference time, the elapsed time from the reference time that the second board was carried out and the carry-out elapsed time of the second board are plotted; a carry-out time interval of the first board is a time taken from when one of the first board and the second board is carried out of the mounter immediately before the first board until the first board is carried out of the mounter, 2. The component mounter according to claim 1, wherein the removal time interval of the second board is a time taken from when one of the first board and the second board is transported outside the component mounter immediately before the second board to when the second board is transported outside the component mounter.

3. 3. The component mounter according to claim 2, wherein the display device displays the first point cloud in a first manner and displays the second point cloud in a second manner different from the first manner.

4. The component mounter according to claim 3 , wherein the display device displays a connection line that connects the first point group and the second point group in chronological order, superimposed on the graph.

5. a selection unit for selecting a specific point from the first point group and the second point group displayed on the graph; 3. The component mounter according to claim 2, wherein the display device is capable of displaying information regarding an abnormal operation that has occurred in the mounting process of the component mounter at an elapsed time corresponding to the specific point selected by the selection means.

Images