JP7113188B2 - Component supply device, component mounting system, and component mounting method - Google Patents

Description

The present invention relates to a component supply device for supplying components to a component mounting device, a component supply system using the component supply device, and a component mounting method.

2. Description of the Related Art As a component feeding device used in a component mounting device, there is a stick feeder using a long hollow stick case as a carrier for storing components. In the stick feeder, a plurality of stick cases containing a plurality of components are stacked in advance, and when one stick case becomes empty by taking out the electronic components, the next stick case is sequentially taken out. In the supply of parts by such a stick feeder, a stick feeder is known that has a traceability management function of managing and recording the type of parts to be supplied and the manufacturing lot (see Patent Document 1). In the prior art disclosed in this patent document, the number of parts to be supplied is determined based on the detection results of the parts on the part transport path along which the parts supplied from the stick cases stacked on the stacking section are transported to a predetermined part supply position. to measure Based on the measured number of parts and the number of parts taken out from the parts supply position, it is determined whether or not the lot is changed for each stick case.

JP 2017-22329 A

However, the prior arts shown in the above patent document examples have the following problems. In other words, in this prior art, since lot switching is determined based on the number of parts measured, mixing of parts between lots due to errors in measuring the number of parts or human error in handling can be avoided. There is a problem that it is hard. Here, it is possible to avoid the mixture of parts between lots by adopting a method of ejecting the stick case after detecting that all the parts have been taken out from the parts supply position, and then ejecting the stick case. Waiting time occurs at the time of switching, resulting in a decrease in productivity. As described above, the conventional technology has a problem that it is difficult to accurately and efficiently manage the changeover of parts lots.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a component feeding device, a component mounting system, and a component mounting method capable of accurately and efficiently managing the changeover of component lots in a stick feeder.

The component supply device of the present invention includes a stacking portion that stacks and holds a plurality of stick cases containing components in an inclined posture, and a stacking portion that is positioned at the opening of the lowest stick case among the plurality of stick cases. a parts conveying section that slides the parts ejected from the opening obliquely downward and conveys the slid parts to a pickup position where the parts are picked up by the mounting head of the parts mounting apparatus; and a stick case positioned at the bottom. from the stacking unit and move the stick case one above it to the bottom stage; a parts out-of-part detection unit for detecting that the parts on the parts conveying unit have run out; and information on the parts stored in a plurality of stick cases loaded on the stacking unit, and at least the names of the parts. a parts information storage unit for storing parts information including lot information; and a feeder control unit for driving the stick discarding unit based on detection results of the empty stick detection unit and the parts exhaustion detection unit and the parts information. , the feeder control unit compares the component information of the stick case positioned at the bottom with the component information of the stick case above it, and if it determines that the components are the same, the empty stick detection unit detects the component at the bottom When it is detected that the stick case located in the position is empty, the stick disposal unit is driven, and when it is determined that the parts are not the same, the parts shortage detection unit detects that there are no more parts on the parts conveying unit. is detected, the stick disposal unit is driven .

The component mounting system of the present invention includes a component mounting device having a mounting head that picks up a component at a pickup position and mounts it on a substrate, and a stacking device that stacks and holds a plurality of stick cases containing components in an inclined posture. and a part transporter located at the opening of the stick case positioned at the lowest stage among the plurality of stick cases, sliding the parts ejected from the opening diagonally downward, and transporting the slid parts to the pick-up position. a stick disposal unit that discards the stick case positioned at the bottom from the stacking unit and moves the stick case one level above it to the bottom, and all parts from the stick case positioned at the bottom A stick empty detection unit that detects that the stick has been discharged, a component exhaustion detection unit that detects that there are no more parts on the parts conveying unit, and a plurality of stick cases loaded on the stacking unit. a stacking information storage unit for storing component information including at least the component name and lot information of the component; a feeder control unit for driving the disposal unit, wherein the feeder control unit compares the component information of the stick case positioned at the bottom with the component information of the upper stick case, and determines that the components are the same; drives the stick disposal unit when the stick empty detection unit detects that the stick case located at the lowest stage is empty; When it is detected that there are no more parts on the parts conveying section, the stick discarding section is driven.

In the component mounting method of the present invention, a component ejected from an opening of a stick case positioned at the lowest level among a plurality of stick cases stacked and held in a stacking section is slid, and the slid component is mounted on a component mounting device. A plurality of stick cases are carried to a pickup position where the mounting head picks up the components, the components conveyed to the pickup position are picked up by the mounting head of the component mounting device and mounted on the substrate, and the plurality of stick cases are mounted on the loading unit. stores information on the parts stored in the parts conveying unit including at least part names and lot information, and detects that all the parts have been discharged from the stick case positioned at the bottom, and the parts conveying unit It detects that all the parts are gone from the top, compares the part information of the stick case located at the bottom with the part information of the stick case above it, and if it is determined that the parts are the same, the bottom stage When it is detected that the stick case positioned at the bottom is empty, the stick case positioned at the lowest stage is discarded from the stacking section and the stick case one level above is moved to the lowest stage so that the parts are not the same. In this case, when it is detected that all the parts have disappeared from the part conveying section, the stick case positioned at the lowest stage is discarded from the stacking section, and the stick case one level above is discarded from the lowest stage. Then, the component ejected from the stick case newly moved to the lowest stage is transported to the pickup position, picked up by the mounting head, and mounted on the board.

According to the present invention, it is possible to accurately and efficiently manage the changeover of component lots in a stick feeder.

1 is a plan view of a component mounting device in which a component feeding device according to one embodiment of the present invention is arranged; FIG. 1 is a partial cross-sectional view showing the configuration of a component mounting system according to one embodiment of the present invention; BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram of the configuration of a component supply device according to an embodiment of the present invention; 1 is a block diagram showing the configuration of a control system of a component supply device according to an embodiment of the present invention; FIG. FIG. 3 is an explanatory diagram of determination of a loading state by a loading section state determining section in the component feeding apparatus according to the embodiment of the present invention; FIG. 2 is a flow chart showing processing associated with stick case disposal and lot switching in the component supply device according to one embodiment of the present invention;

Next, an embodiment of the present invention will be described with reference to the drawings. First, referring to FIGS. Describe the configuration. The component mounting device 2 and the stick feeder 3 constitute the component mounting system 1 shown in FIG. In FIG. 1, a substrate transfer mechanism 5 is arranged in the X direction (substrate transfer direction) at the center of the base 4 . The substrate transport mechanism 5 transports the substrate 6 carried in from the upstream side, and positions and holds it on the mounting stage set for executing the component mounting work.

A component supply unit 7 is arranged on both sides of the board transfer mechanism 5 . A plurality of tape feeders 8 are mounted in parallel on one component supply section 7 . The tape feeder 8 pitch-feeds the carrier tape containing the components in the tape feed direction, thereby supplying the components to a pick-up position by the mounting head 12 of the component mounting mechanism 13 described below.

A plurality of tape feeders 8 and a stick feeder 3 are arranged in the other component supply section 7 . The stick feeder 3 also functions as a component supply device, and as shown in FIG. Store in stacks. The stick feeder 3 comprises a stacking section 20 and a component conveying section 29 . The component conveying section 29 is coupled to the mounting base section 3b (see also FIG. 3) on the upper surface of the carriage 3a arranged in the component supply section 7. As shown in FIG.

The component ejected from the stick case 23 is transported by the component transport section 29 to a pick-up position 29a (FIG. 2) by the mounting head 12. As shown in FIG. The conveyed component P is picked up by the mounting head 12 (arrow a), transported above the substrate 6, and mounted on the substrate 6 (arrow b). That is, the component mounting system 1 shown in this embodiment has a configuration including a stick feeder 3 as a component supply device and a component mounting device 2 .

A Y-axis moving table 10 having a linear driving mechanism is arranged at one end in the X direction on the upper surface of the base 4 . Two X-axis moving tables 11 similarly equipped with linear drive mechanisms are coupled to the Y-axis moving table 10 so as to be movable in the Y direction. A mounting head 12 is mounted on each of the two X-axis moving tables 11 so as to be movable in the X direction.

By driving the Y-axis moving table 10 and the X-axis moving table 11, the mounting head 12 moves in the X direction and the Y direction. As a result, the two mounting heads 12 pick up components from component supply positions by the tape feeders 8 and stick feeders 3 arranged in the corresponding component supply units 7 and transfer them to the substrate 6 positioned on the substrate transfer mechanism 5 . and put it on. The Y-axis moving table 10, the X-axis moving table 11, and the mounting head 12 constitute a component mounting mechanism 13 that sucks and holds a component from the component supply unit 7, picks it up, transfers it to the substrate 6, and mounts it.

A component recognition camera 14 is arranged between the component supply section 7 and the board transfer mechanism 5 . When the mounting head 12 that has taken out the component P from the component supply unit 7 moves above the component recognition camera 14, the component recognition camera 14 images and recognizes the component P held by the mounting head 12 (Fig. 2). Mounted on the mounting head 12 is a substrate recognition camera 15 which is located on the lower surface side of the X-axis moving table 11 and moves integrally with the mounting head 12 .

As the mounting head 12 moves, the board recognition camera 15 moves above the board 6 positioned by the board conveying mechanism 5, picks up an image of the board 6, and recognizes it. In the operation of mounting the component on the board 6 by the mounting head 12, the mounting position correction is performed in consideration of the component recognition result by the component recognition camera 14 and the board recognition result by the board recognition camera 15. FIG. These recognition processing and position correction processing are executed by the component mounting device control section 16 arranged in the base 4 .

At the top of the component mounting device 2 is provided a signal device 17 that emits light in a predetermined light emission pattern commanded by the component mounting device control section 16 . The component mounting device control unit 16 activates the signal device 17 according to a preset notification item such as an abnormal event, thereby notifying the operator of an abnormality occurring in the component mounting system 1 .

Next, referring to FIG. 3, the configuration and function of stick feeder 3 will be described. The stick feeder 3 includes a stacking section 20 for storing a plurality of stick cases 23 in a stacked state and a component conveying section 29 . The component conveying section 29 has a function of conveying a component discharged from the stick case 23 in which it is housed to a pick-up position 29a by the mounting head 12 (FIG. 2) of the component mounting mechanism 13. FIG.

The stacking section 20 is arranged in an inclined posture in the component supply direction, and includes a first guide section 21 and a second guide section 22 which are arranged to face each other. The first guide portion 21 and the second guide portion 22 are configured to sandwich and hold the stick case 23 between two plate-like members arranged in the paper surface direction. A stacking space for stacking a plurality of stick cases 23 is formed between the first guide portion 21 and the second guide portion 22 .

The stick case 23 is a hollow elongated container with both ends opened, and a plurality of parts are accommodated in series inside the stick case 23 . That is, the stacking unit 20 has a function of stacking and holding a plurality of stick cases 23 containing a plurality of parts in an inclined posture. A bar code label (not shown) indicating part information such as part names and lot information of the parts stored in the stick case 23 is attached to one side end surface of the stick case 23 . is set on the stacking unit 20, the operator reads the barcode label with a barcode reader, thereby reading the component information and performing the component matching process.

When the stick case 23 is set in the stacking space between the first guide portion 21 and the second guide portion 22 , both ends in the longitudinal direction of the stick case 23 are aligned with the first guide portion 21 and the second guide portion 22 . The position is held guided by At this time, the stick case 23 is tilted in the component supply direction, and the components stored in the stick case 23 are subjected to a component conveying force in the tilt direction due to gravity.

Among the plurality of stick cases 23 stacked on the stacking unit 20, the sliding transport unit 27 is positioned at the opening of the stick case 23a positioned at the bottom. The slide-type conveying unit 27 slides obliquely downward the parts discharged from the opening of the stick case 23a and transferred thereon by the above-described parts conveying force. An end portion of the slide type transfer section 27 is connected to a final transfer section 28 arranged horizontally. The final conveying section 28 includes a vibrating section 28a that vibrates the transferred parts.

When the parts that have slid on the slide-type transfer section 27 are transferred to the final transfer section 28, the parts move on the final transfer section 28 toward the pick-up position 29a. That is, the final conveying section 28 conveys the component that has slid along the sliding conveying section 27 to a pickup position 29a where the mounting head 12 of the component mounting device 2 picks up the component.

The sliding conveying section 27 and the final conveying section 28 are positioned at the opening of the stick case 23a located at the bottom of the plurality of stick cases 23 stacked on the stacking section 20, and obliquely convey the components discharged from the opening. A component conveying section 29 is configured that slides downward and conveys the slid component to a pickup position 29a where the mounting head 12 of the component mounting device 2 picks up the component. In this embodiment, the parts conveying section 29 is held by a mounting base section 3b provided on the upper surface of the carriage 3a (see FIG. 2). A control box 3c provided on the lower surface of the mounting base portion 3b incorporates a feeder control portion 30 (see FIG. 4) for controlling each portion of the stick feeder 3. As shown in FIG.

The lowest position in the stacking section 20 is a supply position for positioning the stick case 23 to which components are to be supplied. Then, the component that has reached the pickup position 29a is picked up by the mounting head 12 while being held by suction. In the above-described configuration, the stacking section 20 is arranged so as to be inclined in the component supply direction, and the stick case 23 stored in the stacking section 20 is transferred to the sliding transport section 27 by gravity. 20 may be arranged horizontally without being tilted. In this case, a component pushing mechanism is provided to push out the parts in the component mounting device control section 16 with a rod-shaped pushing member and transfer them to the final transport section 28 .

A stick ejection mechanism 24 and a state display section 25 are provided on the second guide section 22 on the side opposite to the component supply direction. The stick ejection mechanism 24 controls the movement of the two locking members 24a and 24b into and out of the stacking section 20, thereby removing the lowest stick among the plurality of stick cases 23 stored in the stacking space. It has a function of dropping only the case 23a and discharging it to the case collection unit 26. - 特許庁The state display section 25 displays predetermined items such as the stacking state of the stick cases 23 on the stacking section 20 .

The stick case 23 , which has been emptied after all the parts P have been delivered by supplying the parts, is ejected by the stick ejecting mechanism 24 and dropped, and is recovered by the case recovering section 26 . As a result, the next stick case 23b positioned directly above the bottom stick case 23a is positioned at the component supply position. In other words, the stick ejection mechanism 24 serves as a stick discarding section that discards the stick case 23a positioned at the bottom from the stacking section 20 and moves the stick case 23b one level above it to the bottom. The drive timing of the stick ejection mechanism 24 as a stick disposal unit is controlled by a feeder control unit 30 (see FIG. 4) as a stick control unit.

A first component detection sensor SP1 including a first component detection sensor SP1a (light-emitting portion) and a first component detection sensor SP1b (light-receiving portion) arranged to face each other is arranged on the stacking portion 20 . The first component detection sensor SP1 is a first component having an optical axis along a straight line connecting a pick-up position 29a from a transfer position where the component P discharged from the stick case 23a is transferred from the slide transfer section 27 to the final transfer section 28. It is a detection unit, and has a function of detecting the presence or absence of the component P on the component transport path from the transfer position to the pickup position 29a. A lack of parts is detected when the first part detector detects that there is no part.

In addition, on the upstream side of this transfer position in the sliding transport section 27, there is a second component detection sensor SP2 consisting of a pair of second component detection sensors SP2a (light emitting section) and second component detection sensor SP2b (light receiving section). are provided in an arrangement transverse to the direction of movement of The second component detection sensor SP2 is a second component detection section having a function of detecting passage of a component discharged from the stick case 23 and moved to the pickup position 29a. Here, for convenience of illustration, illustration of the second component detection sensor SP2b (light-receiving unit) positioned on the back in the paper surface direction is omitted.

Although an example in which the second component detection sensor SP2 is arranged in the sliding transport section 27 is shown here, the second component detection sensor SP2 may be arranged in the final transport section . That is, the second component detection section in this embodiment is arranged in the sliding transport section 27 or the final transport section 28 . The first component detection section and the second component detection section described above constitute a component detection section that detects components present in the component conveying section 29 . As described above, in this embodiment, the components existing in the component conveying section 29 are detected by two sensors, the first component detection section and the second component detection section. This makes it possible to detect out-of-parts and clogged-up parts with a small number of sensors.

The plate-like member constituting the first guide portion 21 of the stacking portion 20 has a first sensor guide portion G1, a second sensor guide portion G2, and a third sensor guide portion G3, which are three elongated sensor mounting slits. , are arranged in parallel in the stacking direction of the stick cases 23 in the stacking section 20 . The first sensor guide portion G1, the second sensor guide portion G2, and the third sensor guide portion G3 are provided with a first stick detection sensor SS1a (light emitting portion) and a second stick detection sensor SS2a (light emitting portion) for detecting the stick case 23, respectively. ), and the third stick detection sensor SS3a (light-emitting portion) is mounted so as to be slidable in the stacking direction of the stick case 23 .

Three sensor mounting slits similar to those of the first sensor guide portion G1, the second sensor guide portion G2, and the third sensor guide portion G3 are also formed in the plate-like member on the back side of the paper that constitutes the first guide portion 21. ing. Light-receiving portions paired with the first stick detection sensor SS1a (light-emitting portion), the second stick detection sensor SS2a (light-emitting portion), and the third stick detection sensor SS3a (light-emitting portion) are attached to these sensor mounting slits. It is It should be noted that the illustration of these light-receiving units located on the back side in the paper surface direction is omitted here.

The first stick detection sensor SS1a (light-emitting section), the second stick detection sensor SS2a (light-emitting section), the third stick detection sensor SS3a (light-emitting section), and the light-receiving section paired with these are the first stick detection sensor SS1, the A second stick detection sensor SS2 and a third stick detection sensor SS3 are configured. The first stick detection sensor SS1 detects the stick case 23b one level above the stick case 23a positioned at the bottom of the stacking section 20 . The second stick detection sensor SS2 and the third stick detection sensor SS3 detect stick cases 23c and 23d that are two and three upper stick cases 23a and 23d, respectively, of the lowest stick case 23a.

The first stick detection sensor SS1, the second stick detection sensor SS2, and the third stick detection sensor SS3 are respectively connected to the first sensor guide part G1, the second sensor guide part G2, and the third sensor guide part G2 by fasteners such as bolts that can be freely fastened and unfastened. It is attached to the third sensor guide part G3 so that its position is variable. That is, the stacking section 20 has a sensor guide section that guides the movement of the first stick detection sensor SS1 and the second stick detection sensor SS2 in the stacking direction. More specifically, the stacking section 20 guides the first stick detection sensor SS1. It has a first sensor guide portion G1 and a second sensor guide portion G2 that guides the second stick detection sensor SS2.

In other words, the first stick detection sensor SS1, the second stick detection sensor SS2, and the third stick detection sensor SS3 are attached to the first guide part 21 in such a manner that their attachment positions in the stick case stacking direction can be adjusted. . As a result, even when stick cases 23 with different thickness dimensions are stacked on the stacking unit 20, it is possible to accurately detect the presence or absence of the stick cases 23 existing at each stacking position, and excellent versatility is achieved. A stick feeder 3 is realized.

Next, referring to FIG. 4, the configuration of the control system will be described. 4, the feeder control unit 30 includes the stick ejection mechanism 24, the first component detection sensor SP1, the second component detection sensor SP2, the first stick detection sensor SS1, the second stick detection sensor SS2, the third The stick detection sensor SS3, the vibration section 28a, and the state display section 25 are connected. The feeder control unit 30 has an empty stick determination unit 31, a component depletion determination unit 32, a component jam determination unit 33, and a stacking unit state determination unit 34 as internal processing functions, and further includes a storage unit 35. .

The feeder control section 30 is also connected to the component mounting device control section 16 of the component mounting device 2 via the communication section 36 so that information can be exchanged with the component mounting device 2 . The component mounting device 2 has a signal device 17 (see FIG. 2) that emits light in a predetermined light emission pattern instructed by the component mounting device controller 16 . The signal device 17 lights up in accordance with a command from the component mounting device control unit 16 for a predetermined item set in advance, and notifies the operator of the fact.

Furthermore, the component mounting device control section 16 is connected to a monitoring system 37 and a production information collection system 38 . The monitoring system 37 has a function of monitoring the operation status of each device in the component mounting system 1, and can notify the worker of predetermined items via a mobile terminal or the like serving as a monitoring device carried by the worker. It is possible. The production information collection system 38 creates production history information indicating the execution history of component mounting work executed in the component mounting system 1 . That is, the component names and lot information of the mounted components are collected for each board to be worked.

The storage unit 35 stores component information, which is information on components stored in the plurality of stick cases 23 stacked on the stacking unit 20 . That is, in the storage unit 35, a storage area MR1, a storage area MR2, a storage area MR3, a storage area MR4, . Storage area MR1, storage area MR2, storage area MR3, . is stored. Therefore, the storage unit 35 serves as a parts information storage unit that stores parts information.

If the second component detection sensor SP2, which is the second component detection unit, does not detect any component, the empty stick determination unit 31 determines that all the components have been discharged from the stick case 23a positioned at the bottom. The second component detection sensor SP2, which has an optical axis that traverses the stick empty determination unit 31 and the sliding transport unit 27, serves as an empty stick detection unit that detects that all components have been discharged from the stick case 23a located at the bottom. Configure.

The component depletion determination unit 32 determines that there are no components on the component conveying unit 29 when the first component detection sensor SP1, which is the first component detection unit, stops detecting components. The first component detection section and the component depletion determination section 32 constitute a component depletion detection section that detects that there are no components on the component conveying section 29 .

When the first component detection unit or the second component detection unit stops detecting components, the feeder control unit 30 drives the stick ejection mechanism 24 to eject the stick case 23a positioned at the bottom. At this time, the feeder control section 30 refers to the component information stored in the storage section 35 . In other words, the feeder control section 30 drives the stick ejection mechanism 24, which is a stick discarding section, based on the detection result of the stick empty detection section or the component shortage detection section and the component information.

Then, the feeder control unit 30 drives the stick ejection mechanism 24 to eject the stick case 23, and if the first component detection unit or the second component detection unit no longer detects the component within a predetermined time, the component is detected. It is determined that an abnormality such as "component clogging" in which the stick case 23 is not normally conveyed or "stick clogging" in which the stick case 23 is not normally moved has occurred, and the component mounting device 2 is notified to that effect via the communication unit 36. - 特許庁

When receiving the notification of the abnormality, the component mounting apparatus 2 notifies the worker of the occurrence of the abnormality by the notification unit. Here, a component mounting device control section 16 that controls the component mounting device 2 and a signal device 17 that emits light in a predetermined light emission pattern instructed by the component mounting device control section 16 function as a notification section. A mobile terminal connected to the monitoring system 37 that monitors the state of the component mounting apparatus 2 may be used as the notification unit.

If the first component detection sensor SP1 or the second component detection sensor SP2 does not detect a component within a predetermined time after the stick case 23 is discarded, the component jam determination unit 33 determines whether the component is located at any position. It is determined that an abnormality of stuck parts clogging has occurred, and parts clogging determination is performed. The stacking unit state determination unit 34 performs processing for determining the stacking state of the stick cases 23 in the stacking unit 20 . The determination result by the stacking section state determination section 34 is displayed on the state display section 25 .

The feeder control unit 30 drives the stick ejection mechanism 24 as a stick disposal unit based on the detection results of the stick empty determination unit 31 and the component depletion determination unit 32 and the component information stored in the storage unit 35 . That is, the feeder control section 30 functions as a stick control section that controls the drive timing of the stick ejection mechanism 24 . The stick control section uses the processing function of the stacking section state determining section 34 to determine the loading state of the stick case 23 . That is, the loading state of the stick cases 23 in the stacking section 20 is determined from the detection results of the component detection section, the first stick detection sensor SS1, and the second stick detection sensor SS2.

Determination of the stacking state by the stacking unit state determination unit 34 will now be described with reference to FIG. 5 . In FIG. 5, “stick detection sensor” 40, “part detection sensor” 41, and “part name collation result immediately before stick ejection” 42 written in the column direction determine the loading state of the stick case 23 in the stacking unit 20. It is a judgment condition item that is a condition for performing.

The "stick detection sensor" 40 indicates the stick detection result by the first stick detection sensor SS1, the second stick detection sensor SS2, and the third stick detection sensor SS3, and the "part detection sensor" 41 is the first part detection sensor. SP1 shows the part detection result by the second part detection sensor SP2. In the "stick detection sensor" 40 and the "parts detection sensor" 41, the ◯ mark indicates that the stick or the part was detected, and the x mark indicates that the stick or the part was not detected.

"Component name collation result immediately before stick ejection" 42 is the part name collation result immediately before stick ejection, that is, the parts stored in the stick case 23a at the bottom and the parts stored in the stick case 23b one level above. It shows the result of matching the difference of names. This part name collation is performed based on the part information stored in the storage unit 35 . "Loading state" 43 indicates the determination result of the loading state corresponding to these determination condition items.

Judgment patterns 44a to 44j written in the row direction in FIG. In determination patterns 44a to 44c, the stick case 23 is detected in order from the bottom by the first stick detection sensor SS1, the second stick detection sensor SS2, and the third stick detection sensor SS3. As a result, in the "stacked state" 43, a determination of "stacked" indicating that the stick cases 23 are normally stacked on the stacking unit 20 is made.

In the determination pattern 44d, the stick case 23 is not detected by any of the first stick detection sensor SS1, the second stick detection sensor SS2, and the third stick detection sensor SS3, and the part is detected by the second part detection sensor SP2. . Then, in the "part name collation result immediately before stick ejection" 42, the part name collation result is "same". In this case, it is determined that the stick case 23a is present only on the bottom of the stacking section 20 in the "loading state" 43, indicating that the stick case 23a is present only on the bottom.

In the determination pattern 44e, the stick case 23 is not detected by any of the first stick detection sensor SS1, the second stick detection sensor SS2, and the third stick detection sensor SS3, and the part is not detected by the second part detection sensor SP2. . Then, in the "part name collation result immediately before stick ejection" 42, the part name collation result is "same". In this case, the “loading state” 43 is determined to be “empty” indicating that there is no stick case 23 in the stacking section 20 including the bottom of the stacking section 20 .

In the determination pattern 44f, the stick case 23 is not detected by any of the first stick detection sensor SS1, the second stick detection sensor SS2, and the third stick detection sensor SS3, and the part is detected by the first part detection sensor SP1. . Then, in the "part name collation result immediately before stick ejection" 42, the part name collation result is "not the same". In this case, in the "loading state" 43, it is determined that the stick case 23 is present only on the bottom of the stacking section 20, indicating that the stick case 23 is present only on the bottom.

In the determination pattern 44g, the stick case 23 is not detected by any of the first stick detection sensor SS1, the second stick detection sensor SS2, and the third stick detection sensor SS3, and the part is not detected by the first part detection sensor SP1. . Then, in the "part name collation result immediately before stick ejection" 42, the part name collation result is "not the same". In this case, the “loading state” 43 is determined to be “empty” indicating that there is no stick case 23 including the bottom stage of the stacking unit 20 .

In determination patterns 44h to 44j, although the stick case 23 is detected by at least one of the first stick detection sensor SS1, the second stick detection sensor SS2, and the third stick detection sensor SS3, the stick case 23 is present. A gap in which the stick case 23 does not exist exists in the lower stage of the stage where the stick case 23 exists. In such a case, it is determined that the stick case 23 does not move downward normally, i.e., "stick jam".

The relationship between the determination condition items and the determination patterns described above is stored in the storage section 35 of the feeder control section 30 as determination pattern data. In the stick case 23 switching process described below, the feeder control unit 30 as the stick control unit controls the stick feeder 3 by referring to this determination pattern data to discard the stick case 23, to Notify of "stick jam".

Next, with reference to FIG. 6, switching processing of the stick case 23 in the stick feeder 3 arranged in the component mounting device 2 constituting the component mounting system 1 will be described. In FIG. 6, it is first determined whether or not the stacking section 20 is empty (ST1). If it is determined that the parts are not empty, then it is determined whether or not the parts are the same (ST2). That is, the feeder control unit 30 compares the component information of the stick case 23a located at the bottom of the stacking unit 20 with the component information of the stick case 23b located above it. In comparing the parts information, the feeder control unit 30 determines whether the parts are the same based on the parts name, lot information, or both the parts name and lot information.

If it is determined that they are the same, it is determined whether the current stick is empty (ST3). That is, it is determined whether or not all the parts have been ejected from the stick case 23a positioned at the bottom by the function of the empty stick detection section. If it is determined in (ST1) that the stacking section 20 is empty, and if it is determined in (ST2) that the parts are not the same, it is determined whether or not there is a shortage of parts (ST4). That is, it is determined whether or not there are no more parts on the parts conveying section 29 by the function of the parts shortage detection section. When it is determined in (ST3) and (ST4) that there is a component, the process returns to (ST1) and repeats the same processing.

If it is determined in (ST3) that the current stick is empty, or if it is determined in (ST4) that the component has run out, the stick ejection mechanism 24 is driven to execute the stick disposal operation (ST5). . That is, the stick case 23a positioned at the bottom is discarded from the stacking section 20, and the stick case 23b one level above is moved to the bottom.

When the feeder control unit 30 determines that the parts are the same as a result of the above-described comparison of the parts information, the stick empty detection unit detects that the stick case positioned at the bottom of the stacking unit 20 is the stick case positioned at the bottom of the stacking unit 20. When it is detected that 23a is empty, the stick discarding unit is driven. When it is determined that the parts are not the same, the stick discarding section is driven when the parts shortage detection section detects that there are no more parts on the parts conveying section 29 .

Then, the stick case 23 is switched by this stick discarding operation, and parts are started to be ejected from the new stick case 23a in which the stick case 23b one level above has been moved to the lowest stage. Here, the presence or absence of component clogging is determined by the component clogging determining section 33 (ST6). That is, if the first component detection sensor SP1 or the second component detection sensor SP2 does not detect a component even after a predetermined time has elapsed after the stick case 23 is discarded, it is determined that an abnormality due to component clogging has occurred. "Component jam" is notified to the component mounting device 2 (ST7).

If there is no component clogging in (ST6), the presence or absence of stick clogging is determined (ST8). That is, the feeder control section 30 refers to the determination pattern data shown in FIG. 5 to determine whether or not stick jam has occurred (ST8). If stick clogging occurs here, the component mounting device 2 is notified of "stick clogging" (ST9). If there is no stick clogging in (ST9), the parts information written in the storage unit 35 is updated, and the parts name and lot information are transmitted (ST10).

That is, the parts information is updated by rewriting the parts information written in the storage area MR1 corresponding to the bottom stick case 23a with the parts information written in the storage area MR2 corresponding to the stick case 23b one above. The component name and lot information of the rewritten component information are transmitted to the component mounting apparatus 2 .

In this way, when the feeder control unit 30 determines that the parts are not the same as a result of the comparison of the parts information, the parts information is included in the parts information of the stick case 23b one above the discarded stick case 23a. Either or both of the component name and lot information are transmitted to the component mounting apparatus 2 . The component mounting apparatus control unit 16 that has received these component information transmits the component information to the production information collection system 38 . Then, the production information collection system 38 creates and stores production history information in which the information on the boards to be produced and the information on these parts are associated with each other.

Next, a component mounting method for mounting components on the substrate 6 by the component mounting system 1 having the above configuration will be described. Here, the first method included in this component mounting method will be described. In the first method, first, out of the plurality of stick cases 23 stacked and held on the stacking unit 20, the parts discharged from the opening of the stick case 23a positioned at the bottom are transported by the sliding conveying unit 27. It slides obliquely downward and is delivered to the final conveying section 28. - 特許庁

Next, the delivered component is transported to the pickup position 29a where the mounting head 12 of the component mounting device 2 picks up the component by the final transport section . Next, the component transported to the pickup position 29 a is picked up by the mounting head 12 of the component mounting device 2 and mounted on the substrate 6 .

In this component mounting operation, the following operations and processes are executed. That is, the first component detection sensor SP1 (first component detection unit) having an optical axis along a straight line connecting the position where the component is transferred from the sliding transport unit 27 to the final transport unit 28 and the pickup position 29a detects the component. . Along with this, the components are detected by a second component detection sensor SP2 (second component detection unit) which is arranged in the slide type transfer unit 27 or the final transfer unit 28 and has an optical axis that crosses the movement direction of the components.

At this time, when the first component detection unit or the second component detection unit no longer detects components, the stick case 23a positioned at the bottom of the stacking unit 20 is discarded from the stacking unit 20 by the stick ejection mechanism 24, and The upper stick case 23b is moved to the lowest stage. Next, the parts ejected from the stick case 23a newly moved to the lowest stage are conveyed from the sliding conveying section 27 through the final conveying section 28 to the pick-up position 29a. After the new stick case 23a is moved to the bottom stage, if the first component detection unit or the second component detection unit does not detect the component within a predetermined time, the component mounting device 2 is notified of the abnormality.

Next, a second method included in the component mounting method described above will be described. In the second method, the parts ejected from the opening of the stick case 23a positioned at the bottom of the plurality of stick cases 23 stacked and held on the stacking unit 20 are slid, and the slid parts are slid. The component is transported to a pickup position 29a where the component is picked up by the component mounting head 12 of the component mounting device 2.例文帳に追加Next, the component transported to the pickup position 29 a is picked up by the mounting head 12 of the component mounting device 2 and mounted on the substrate 6 .

In this component mounting operation, the following operations and processes are executed. That is, the storage unit 35 stores the information about the parts stored in the plurality of stick cases 23 stacked on the stacking unit 20 and including at least the part name and lot information. Then, it is detected that all the parts have been discharged from the stick case 23a positioned at the bottom, and that all the parts have been removed from the part conveying section 29 is detected.

Then, the component information of the stick case 23a located at the bottom and the component information of the stick case 23b located above it are compared. If it is determined that the parts are the same in the comparison of the parts information, and if it is detected that the stick case 23a positioned at the lowest stage is empty, the stick case 23a positioned at the lowest stage is removed from the stacking section 20. , and the stick case 23b one level above it is moved to the lowest stage.

When it is determined that the parts are not the same, when it is detected that all the parts have disappeared from the parts conveying section 29, the stick case 23a positioned at the bottom is discarded from the stacking section 20, and , the stick case 23b is moved to the bottom. Next, the component discharged from the stick case 23 newly moved to the lowest stage is conveyed to the pickup position 29a, picked up by the mounting head 12, and mounted on the board 6. - 特許庁

In the comparison of the component information described above, the feeder control unit 30 determines whether or not the components are the same based on the component name, lot information, or both the component name and lot information. When it is determined that the parts are not the same, either or both of the part name and lot information contained in the part information of the stick case 23b one level above the discarded stick case 23a is sent to the part mounting apparatus 2. FIG.

As described above, in the component feeding apparatus shown in the present embodiment, among the plurality of stick cases 23 held in a stacked state on the stacking section 20, the stick case 23a positioned at the lowest stage is ejected from the opening of the stick case 23a. A final conveying unit 28 conveys the components that have slid through a sliding conveying unit 27 that slides the components obliquely downward to a pick-up position 29a by the mounting head, and a stick case 23a located at the lowest stage is discarded from the stacking unit 20, and the stick case 23a is discarded. A stick discharge mechanism 24 that moves the stick case one level above to the bottom, a first component detection sensor SP1 having an optical axis along a straight line connecting the position where the component is transferred to the final transport section 28 and the pickup position 29a, and a sliding A second component detection sensor SP2 having an optical axis that is arranged in the type transfer unit 27 and that traverses the component moving direction, and the stick ejection mechanism 24 are activated when the first component detection sensor SP1 or the second component detection sensor SP2 no longer detects a component. and a feeder control unit 30 for driving. This makes it possible to detect out-of-parts and part-jamming in the stick feeder with a small number of sensors.

Further, the component supply apparatus shown in the present embodiment feeds components discharged from the opening of the stick case 23a located at the bottom of the plurality of stick cases 23 stacked on the stacking unit 20 obliquely downward. A component conveying unit 29 that slides and conveys the slid components to a pick-up position 29a, and a stick discharge that discards the stick case 23a located at the bottom from the stacking unit 20 and moves the stick case one level above it to the bottom. a mechanism 24, an empty stick detection unit that detects that all the components have been discharged from the stick case 23a located at the bottom, a component depletion detection unit that detects that there are no more components on the component transport unit 29, A component information storage unit that stores component information of components stored in a plurality of stick cases 23, and a feeder control unit that drives the stick ejection mechanism 24 based on the detection results of the stick empty detection unit and the component exhaustion detection unit and the component information. It is configured with As a result, it is possible to accurately and efficiently manage the changeover of component lots in the stick feeder.

Furthermore, the component supply device shown in the present embodiment conveys components ejected from the opening of the stick case 23a positioned at the bottom among the plurality of stick cases 23 held on the stacking unit 20 to the pick-up position 29a. A conveying unit 29, a component detecting unit that detects the components present in the component conveying unit 29, a stick case 23a located at the bottom stage is discarded from the stacking unit 20, and the opening of the stick case 23b that is one above the stick case 23b is moved to the top. A stick ejection mechanism 24 that moves to the lower stage, a first stick detection sensor SS1 and a second stick detection sensor SS2 that detect the stick cases 23b and 23c one stage above and two stages above the stick case 23a positioned at the bottom, In a configuration including a feeder control section 30 that controls the drive timing of the stick ejection mechanism 24, the mounting positions of the first stick detection sensor SS1 and the second stick detection sensor SS2 in the stacking direction can be adjusted. As a result, it is possible to provide a highly versatile component supply device capable of handling a plurality of types of stick cases of different sizes.

INDUSTRIAL APPLICABILITY The component feeding apparatus, component mounting system, and component mounting method of the present invention have the effect of being able to accurately and efficiently manage the changeover of component lots in a stick feeder. It is useful in the field of wearing.

REFERENCE SIGNS LIST 1 component mounting system 2 component mounting device 3 stick feeder 6 substrate 12 mounting head 20 stacking unit 23 stick case 27 sliding transport unit 28 final transport unit 29 component transport unit 29a pickup position

Claims (17)

a loading unit that stacks and holds a plurality of stick cases containing parts in an inclined posture;
Positioned at the opening of a stick case positioned at the bottom of a plurality of stick cases, the component ejected from the opening slides obliquely downward, and the slid component is picked up by the mounting head of the component mounting device. a parts conveying unit that conveys to a pick-up position;
a stick disposal unit that discards the stick case positioned at the bottom from the stacking unit and moves the stick case one level above it to the bottom;
an empty stick detection unit that detects that all parts have been ejected from the stick case positioned at the bottom;
a component-out detection unit that detects that there are no more components on the component conveying unit;
a parts information storage unit for storing parts information including at least part names and lot information of parts contained in the plurality of stick cases loaded on the stacking part;
a feeder control unit that drives the stick disposal unit based on detection results of the empty stick detection unit and the out-of-parts detection unit and the parts information ;
The feeder control unit compares the component information of the stick case positioned at the bottom with the component information of the stick case above it,
If it is determined that the parts are the same, the stick disposal unit is driven when the stick empty detection unit detects that the stick case located at the lowest stage is empty,
A component feeding device, wherein when it is determined that the components are not the same, the stick discarding unit is driven when the component shortage detecting unit detects that there are no components on the component conveying unit . 2. The component supply according to claim 1, wherein the feeder control unit determines whether or not the component stored in the bottom stick case and the component stored in the upper stick case are the same based on the component name. Device. 2. The component supply according to claim 1, wherein the feeder control unit determines whether or not the component stored in the bottom stick case and the component stored in the upper stick case are the same based on the lot information. Device. 2. The feeder control unit determines whether or not the component stored in the bottom stick case and the component stored in the upper stick case are the same based on the component name and the lot information. Parts feeder as described. Furthermore, the feeder control unit
From claim 1 , when it is determined that the parts are not the same, either or both of the part name and lot information contained in the part information of the stick case one above the discarded stick case are transmitted to the part mounting device. 5. The component supply device according to any one of 4 . The parts conveying unit
a slide-type conveying unit that slides obliquely downward the parts ejected from the opening of the stick case positioned at the bottom of the plurality of stick cases;
a final conveying unit that conveys the parts that have slid through the sliding conveying unit to the pickup position;
The missing parts detection unit
a first component detection unit having an optical axis along a straight line connecting a position where components are transferred from the sliding transport unit to the final transport unit and the pick-up position;
6. The parts supply apparatus according to claim 1, further comprising a parts depletion determination section that determines that there are no more parts on said parts conveying section when said first parts detection section no longer detects any parts. The stick empty detection unit
a second component detector having an optical axis that traverses the gliding transport;
7. The component supply device according to claim 6 , further comprising an empty stick determination unit that determines that all the components have been discharged from the lowest stick case when the second component detection unit no longer detects components. a component mounting device having a mounting head that picks up a component at a pickup position and mounts it on a substrate;
a loading unit that stacks and holds a plurality of stick cases containing parts in an inclined posture;
a parts conveying unit positioned at the opening of the lowest stick case among the plurality of stick cases, sliding the parts ejected from the opening obliquely downward and conveying the slid parts to the pick-up position;
a stick disposal unit that discards the stick case positioned at the bottom from the stacking unit and moves the stick case one level above it to the bottom;
an empty stick detection unit that detects that all parts have been ejected from the stick case positioned at the bottom;
a component-out detection unit that detects that there are no more components on the component conveying unit;
a parts information storage unit for storing parts information including at least part names and lot information of parts contained in the plurality of stick cases loaded on the stacking part;
a feeder control unit that drives the stick disposal unit based on detection results of the empty stick detection unit and the out-of-parts detection unit and the parts information;
The feeder control unit compares the component information of the stick case positioned at the bottom with the component information of the stick case above it,
If it is determined that the parts are the same, the stick disposal unit is driven when the stick empty detection unit detects that the stick case located at the lowest stage is empty,
The component mounting system drives the stick disposal unit when it is determined that the components are not the same, and when the component shortage detection unit detects that there are no more components on the component conveying unit. 9. The component mounting system according to claim 8 , wherein said feeder control unit determines whether or not the components are the same based on said component name. 9. The component mounting system according to claim 8 , wherein said feeder control unit determines whether or not components are the same based on said lot information. 9. The component mounting system according to claim 8 , wherein said feeder control unit determines whether or not components are the same based on said component name and said lot information. Furthermore, the feeder control unit
From claim 8 , when it is determined that the parts are not the same, either or both of the part name and lot information included in the part information of the stick case one above the discarded stick case are transmitted to the part mounting device. 12. The component mounting system according to any one of 11 . The components ejected from the opening of the stick case positioned at the lowest stage among the plurality of stick cases stacked and held in the stacking section are slid, and the slid components are picked up by the mounting head of the component mounting device. Transport to the pick-up position,
picking up the component transported to the pick-up position with a mounting head of the component mounting device and mounting it on the substrate;
storing component information including at least component names and lot information, which is information on components stored in a plurality of stick cases loaded on the stacking unit;
Detecting that all parts have been discharged from the stick case located at the bottom,
Detecting that all the parts have disappeared from the parts conveying unit,
Compare the part information of the stick case located at the bottom with the part information of the stick case above it,
When it is determined that the parts are the same, when it is detected that the stick case positioned at the lowest stage is empty, the stick case positioned at the lowest stage is discarded from the stacking section and the stick case located one level above it is discarded. Move the stick case to the bottom,
When it is determined that the parts are not the same, when it is detected that all the parts have disappeared from the part conveying section, the stick case positioned at the lowest stage is discarded from the stacking section and the stick case one level above is discarded. to the bottom row,
A component mounting method, wherein a component ejected from the stick case newly moved to the lowermost stage is conveyed to the pickup position, picked up by the mounting head, and mounted on a substrate. 14. The component mounting method according to claim 13 , wherein whether or not the components are the same is determined by the component names. 14. The component mounting method according to claim 13 , wherein whether or not the components are the same is determined based on the lot information. 14. The component mounting method according to claim 13 , wherein whether or not the components are the same is determined based on the component name and the lot information. From claim 13 , when it is determined that the parts are not the same, either or both of the part name and lot information contained in the part information of the stick case one above the discarded stick case are transmitted to the part mounting device. 17. The component mounting method according to any one of 16 .

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