JPWO2018229910A1 - Nozzle cleaning unit automatic replacement system - Google Patents

Abstract

A nozzle cleaning unit automatic replacement system for automatically replacing a nozzle cleaning unit (81) for cleaning a suction nozzle of a component mounting machine (12), wherein the nozzle cleaning unit is provided in a feeder set section (24) of a component mounting machine. 14) so that it can be set interchangeably. Further, a stock part (71) for accommodating a plurality of feeders set in the feeder set part of the component mounter and a nozzle cleaning unit, and a feeder to be replaced taken out from the feeder set part and collected in the stock part and And an automatic exchange device (26) for taking out a feeder designated by a production job from the set and setting it in the feeder set section. This automatic exchanging device takes out the nozzle cleaning unit from the stock section and sets it in the feeder setting section when cleaning the suction nozzle.

Description

  This specification discloses a technique relating to a nozzle cleaning unit automatic replacement system for automatically replacing a nozzle cleaning unit for cleaning a suction nozzle of a component mounting machine.

  If foreign matter such as dust adheres to the suction nozzle of the component mounter, a component suction error (a component suction error or an abnormal component suction attitude) occurs, or the foreign material appears in a captured image of the component suctioned by the suction nozzle. And cause an image processing error. Therefore, as described in Patent Document 1 (Japanese Patent Application Laid-Open No. 2008-311549), when cleaning the suction nozzle, an operator sets the nozzle cleaning unit in the feeder set section of the component mounting machine, Some nozzle cleaning units clean the suction nozzle.

JP 2008-311549 A

  In general, a component mounting line that mounts components on a circuit board to produce a component mounting board is configured by arranging a plurality of component mounting machines along a transport path that transports the circuit board. In the first configuration, an operator who manages the production of the component mounting line must manually set the nozzle cleaning unit in each of the feeder set sections of the plurality of component mounters on the component mounting line. There is a disadvantage that the amount of work of the worker increases.

  Also, if the nozzle cleaning unit is set in the feeder set section of the component mounter, the number of feeders that can be set in the feeder set section decreases accordingly, so the nozzle cleaning unit is set in the feeder set section immediately before cleaning the suction nozzle. It is desirable to take out the nozzle cleaning unit immediately after cleaning and replace it with a feeder.However, the worker must manually attach and detach the nozzle cleaning unit before and after such cleaning to all component mounting machines on the component mounting line. To do in is very tedious. In addition, there is a possibility that a component mounting machine for setting the nozzle cleaning unit may be mistaken due to a worker's operation mistake, or may be left without performing the work of attaching and detaching the nozzle cleaning unit, and as a result, the component mounting machine stops with an error. There is also a possibility.

  If the number of feeders required for production is not so large, production can be continued even if the nozzle cleaning unit is always set in the feeder set section of each component mounting machine on the component mounting line. However, it is necessary to prepare nozzle cleaning units for all the component mounting machines in the component mounting line, and there is a disadvantage that the cost for preparing the nozzle cleaning units increases.

  In order to solve the above problems, an automatic nozzle cleaning unit replacement system for automatically replacing a nozzle cleaning unit for cleaning a suction nozzle of a component mounting machine, wherein the nozzle cleaning unit includes a feeder set in a feeder set portion of the component mounting machine. A plurality of feeders to be set in the feeder set section and a stock section for accommodating the nozzle cleaning unit; and a feeder to be replaced is taken out of the feeder set section and collected in the stock section. And an automatic exchange device for taking out a designated feeder from the stock unit and setting the feeder in the feeder set unit, wherein the automatic exchange device removes the nozzle cleaning unit from the stock unit when cleaning the suction nozzle. Take it out and set it in the feeder set section Than it is.

  With this configuration, the nozzle cleaning unit can be automatically replaced by using an automatic replacement device that automatically replaces the feeder set in the feeder set section of the component mounter. There is no need to perform this operation, and labor can be saved. Moreover, since one nozzle cleaning unit can be reused for a plurality of component mounters, the number of nozzle cleaning units to be prepared can be reduced, and the cost for preparing the nozzle cleaning units can be reduced. Further, when it becomes necessary to clean the suction nozzle of the component mounter, the nozzle cleaning unit is quickly set in the feeder set section of the component mounter by the automatic exchange device, and after the cleaning is completed, the nozzle cleaning unit is quickly moved. The suction nozzle can be efficiently cleaned, preventing a reduction in productivity and preventing an error stop of the component mounter due to an operator's mistake in attaching or detaching the nozzle cleaning unit. Can be. The stock unit may be provided in the component mounting machine, or may be provided in a component mounting line including the component mounting machine.

FIG. 1 is a perspective view showing the configuration of the entire component mounting line according to one embodiment. FIG. 2 is a perspective view schematically showing the configurations of the automatic exchange device and the component mounter. FIG. 3 is a block diagram schematically showing a configuration of a component mounting line with an automatic exchange device. FIG. 4 is a perspective view showing a cassette type feeder. FIG. 5 is a perspective view showing a cassette type nozzle cleaning unit. FIG. 6 is a side view showing a schematic configuration of a main part of the nozzle cleaning unit when the brush is lowered to the retracted position. FIG. 7 is a side view showing a schematic configuration of a main part of the nozzle cleaning unit when the brush is raised to the cleaning position.

Hereinafter, an embodiment will be described.
First, the configuration of the component mounting line 10 will be described with reference to FIGS.

  The component mounting line 10 is configured by arranging a plurality of component mounters 12 along the transport direction (X direction) of the circuit board 11, and soldering the circuit board 11 to the board loading side of the component mounting line 10. And a storage 19 for storing a cassette-type feeder 14 (see FIG. 4) and a cassette-type nozzle cleaning unit 81 (see FIGS. 5 to 7). I have.

  As shown in FIG. 2, each component mounter 12 has two conveyors 13 for transporting a circuit board 11 and a suction nozzle for sucking components supplied from a cassette type feeder 14 and mounting the components on the circuit board 11. (Not shown), a mounting head 15 for exchanging the mounting head 15, a head moving device 16 for moving the mounting head 15 in XY directions (left, right, front and rear directions), and a display device 23 such as a liquid crystal display and a CRT are provided. ing.

  Each component mounter 12 of the component mounting line 10 transports the circuit board 11 conveyed from the component mounter 12 on the upstream side to a predetermined position by the conveyor 13 and clamps the circuit board 11 by a clamp mechanism (not shown). The component supplied from the cassette-type feeder 14 is clamped and sucked by the suction nozzle of the mounting head 15 and moved from the suction position to the imaging position. (Not shown) to determine the suction position shift amount of the component and the like, and then correct the suction position shift amount to mount the component on the circuit board 11 on the conveyor 13 to produce a component mounting board. .

Next, the configuration of the cassette type feeder 14 will be described with reference to FIG.
The cassette case 32 of the cassette-type feeder 14 is formed of a transparent or opaque plastic plate or a metal plate, and its side (cover) can be opened and closed. In the cassette case 32, there is provided a tape loading unit 35 for detachably (replaceably) loading a tape reel 34 around which the component supply tape 33 is wound. At the center of the tape loading section 35, a reel holding shaft 36 for rotatably holding the tape reel 34 is provided.

  In the cassette case 32, a tape feed mechanism 38 for feeding the component supply tape 33 drawn from the tape reel 34 to the component suction position, and a top film 40 (also called a cover tape) from the component supply tape 33 just before the component suction position. A top film peeling mechanism 39 for peeling and exposing the components in the component supply tape 33 is provided.

  The tape feed mechanism 38 is composed of a sprocket 42 provided near the lower part of the component suction position, a motor 43 for driving the sprocket 42 and the like, and is formed at a predetermined pitch on one side edge of the component supply tape 33. By rotating the sprocket 42 by engaging the teeth of the sprocket 42 with the tape feed holes, the component supply tape 33 is pitch-fed to the component suction position.

  The top film peeling mechanism 39 includes a tape holder 45 for holding the component supply tape 33 in front of the component suction position and peeling the top film 40 from the upper surface of the component supply tape 33, and a top film peeled by the tape holder 45. It is composed of a top film feed gear mechanism 47 for pulling the 40 in the direction opposite to the tape feed direction and feeding it into the top film collecting section 46 on the upper part of the cassette case 32, a motor 48 for driving the top film feed gear mechanism 47, and the like. ing.

  At the edge of the cassette case 32 on the tape feed direction side, the waste tape 33a (in this embodiment, only the carrier tape from which the top film 40 has been peeled) from which the components have been taken out through the component suction position is placed downward. A waste tape discharge passage 50 for guiding and discharging the waste tape is provided so as to extend downward, and an outlet 50a of the waste tape discharge passage 50 is provided at a position below the center of the end face of the cassette case 32 on the tape feed direction side. ing.

  A control device 52 for controlling the motor 43 of the tape feed mechanism 38 and the motor 48 of the top film peeling mechanism 39 is provided in the cassette case 32. Although not shown, the cassette case 32 is provided with a communication / power connector and a positioning pin that are connected to the communication / power connector on the component mounter 12 side. As a result, the cassette-type feeder 14 is positioned and set in the feeder setting section 24 of the component mounter 12, so that the communication / power connector of the cassette-type feeder 14 is used for the communication / power supply of the component mounter 12. Connector. A communication / power connector on the component mounter 12 is provided for each slot on the feeder set unit 24.

  At a predetermined position of the cassette case 32, a feeder identification information recording unit (not shown) that records or stores a feeder ID (identification information of the feeder 14) is provided. As the feeder identification information recording unit, for example, a code label in which a feeder ID is recorded as a barcode, a two-dimensional code, or the like may be used, or an electronic tag (RF tag, IC tag, radio wave tag, , Wireless tags). Accordingly, when the communication / power connector of the cassette type feeder 14 is connected to the communication / power connector of the component mounter 12, the control device 52 of the cassette type feeder 14 and the control device 20 of the component mounter 12 are connected. The control device 20 of the component mounter 12 obtains the feeder ID recorded or stored in the feeder identification information recording unit by communicating with. The control device 20 of the component mounter 12 can recognize which cassette type feeder 14 is set in which slot by communicating with the control device 52 of the cassette type feeder 14.

Next, the configuration of the cassette type nozzle cleaning unit 81 will be described with reference to FIGS.
The cassette type nozzle cleaning unit 81 is configured to be set in the feeder setting section 24 of the component mounter 12 so as to be exchangeable with the cassette type feeder 14. The height dimension and depth dimension (dimension in the Y direction) of the nozzle cleaning unit 81 are substantially the same as the height dimension and depth dimension of the cassette-type feeder 14, and are sent to the feeder set section 24 of the component mounter 12. The mounting structure of the nozzle cleaning unit 81 is common to the mounting structure of the feeder 14. By doing so, the nozzle cleaning unit 81 can be attached and detached in the same procedure as the attachment and detachment of the feeder 14, and the nozzle cleaning unit 81 can be easily attached and detached. Note that the width dimension (X-direction dimension) of the nozzle cleaning unit 81 does not necessarily have to be the same as the width dimension of the feeder 14, and may be a width spanning a plurality of slots of the feeder set unit 24. The point is that the nozzle cleaning unit 81 only needs to have such a width that the nozzle cleaning unit 81 can be set together with the feeder 14 in the feeder setting section 24.

  A communication / power supply connector 82 connected to a communication / power supply connector (not shown) of the component mounter 12 is provided on a tip end surface (a surface on the side of insertion into the feeder set section 24) of the nozzle cleaning unit 81. Power is supplied to the nozzle cleaning unit 81 from the component mounter 12 by connecting the communication / power connector 82 of the nozzle cleaning unit 81 to the communication / power connector of the component mounter 12. At the same time, identification information (ID), a control signal, and the like of the nozzle cleaning unit 81 are transmitted and received between the control unit 83 of the nozzle cleaning unit 81 and the control device 20 of the component mounter 12. The control device 20 of the component mounter 12 can recognize which nozzle cleaning unit 81 is set in which slot by communicating with the control unit 83 of the nozzle cleaning unit 81.

  Positioning pins 84 and 85 are provided on the top and bottom sides of a communication / power supply connector 82 on the distal end surface of the nozzle cleaning unit 81, respectively, and the positioning pins 84 and 85 are positioned in positioning holes (see FIG. (Not shown), the nozzle cleaning unit 81 is positioned on the feeder set section 24.

  At a predetermined position of the nozzle cleaning unit 81, a unit identification information recording unit (not shown) that records or stores a unit ID (identification information of the nozzle cleaning unit 81) is provided. As the unit identification information recording unit, for example, a code label in which a unit ID is recorded as a bar code, a two-dimensional code, or the like may be used, or an electronic tag (RF tag, IC tag, radio wave tag, or the like) storing unit ID data may be used. , Wireless tags).

  The nozzle cleaning unit 81 is provided with a brush 86 for cleaning the suction nozzle of the component mounting machine 12 and a lifting device 87 for moving the brush 86 up and down. The brush 86 is mounted on a lifting table 88 of the lifting device 87. Have been. The hairs constituting the brush 86 may be artificially formed of resin or the like, or may be formed of animal hair existing in nature. The brush 86 may be formed entirely of bristles having a single hardness, or may be formed using bristles having different hardnesses on the inside and outside in order to further enhance the cleaning effect. Further, in this embodiment, in order to enhance the cleaning effect, at least a part of the bristles of the brush 86 is inclined obliquely upward so that the bristles of the brush 86 obliquely cross the suction nozzle. In addition, the brush 86 can be replaced so that the brush 86 whose bristle tip has been worn or deteriorated by long-term use can be replaced with a new brush 86, or the type of the brush 86 can be replaced according to the type of suction nozzle to be cleaned. You may do it.

  In the present embodiment, as shown in FIG. 6, the brush 86 descends and retracts into the nozzle cleaning unit 81, and as shown in FIG. 7, the brush 86 projects upward from the nozzle cleaning unit 81. The brush 86 is configured to move up and down between the brush 86 and a cleaning position for cleaning the suction nozzle. This allows the brush 86 to be lowered to the retracted position at times other than when cleaning (such as when the nozzle cleaning unit 81 is automatically replaced or when the component mounter 12 performs a component suction operation). The brush 86 can be prevented from interfering with the suction nozzle or the like at the time of replacement or at the time of the component suction operation of the component mounter 12, so that the brush 86 does not become an obstacle.

  Further, in the present embodiment, the type of the suction nozzle based on the identification information (ID) of the suction nozzle to be cleaned transmitted from the control device 20 of the component mounter 12 to the control unit 83 of the nozzle cleaning unit 81. , The height of the cleaning position is changed in a plurality of steps. Note that the height of the cleaning position may be fixed, and the lowering stroke (Z-axis stroke) of the suction nozzle during cleaning may be changed according to the type of suction nozzle. Thus, the same cleaning effect as changing the height of the cleaning position can be obtained.

  An elevating device 87 that moves the brush 86 up and down serves as a driving source, and a slide plate 91 on which an elevating table 88 is mounted via a support plate 89, a slide guide 92 that guides the sliding direction of the slide plate 91 in the vertical direction. A gear mechanism 94 for converting the rotation of the motor 93 into a vertical displacement and transmitting the displacement to the slide plate 91 is provided. The gear mechanism 94 is configured by meshing a rack 95 fixed to the slide plate 91 and a reduction gear 96 that transmits the rotation of the motor 93.

  A position sensor 97 is provided as means for detecting the position of the brush 86 moved up and down by the lifting device 87. Thereby, as shown in FIG. 7, when the brush 86 is raised to the cleaning position, the detected member 98 fixed to the slide plate 91 via the support member 99 contacts or approaches the position sensor 97. Then, it is detected that the position sensor 97 is operated (for example, turned on) and the brush 86 is raised to the cleaning position. As shown in FIG. 6, when the brush 86 is lowered to the retracted position, the detected member 98 of the slide plate 91 moves away from the position sensor 97, so that the position sensor 97 is in a non-operating state (for example, an off state). ), Thereby detecting that the brush 86 is lowered to the retracted position. The position sensor 97 may be a contact type or a non-contact type sensor (or switch).

  An encoder (not shown) for outputting a pulse signal synchronized with the rotation of the motor 93 for driving the elevating device 87 is built in. The control unit 83 of the nozzle cleaning unit 81 counts the output pulses of the encoder. The brush 86 is moved up or down to the cleaning position or the retreat position while detecting the height position of the brush 86. Then, at the position (cleaning position) where the position sensor 97 is operated (ON operation), the count value of the encoder pulse is reset to the initial value (0), and the motor 93 is controlled using this position as a reference position for the elevation control.

  Note that the method of using the position sensor 97 is not limited to the above method, and the reference position at which the position sensor 97 is turned on may not be the cleaning position. (Upper limit position).

  As shown in FIG. 1, on the front side of the component mounting line 10, an automatic exchange device 26 that sets and removes (automatic exchange) the cassette type feeder 14 from the feeder set section 24 of each component mounter 12 is installed. Have been. The automatic exchange device 26 also sets and removes (automatic exchange) the cassette type nozzle cleaning unit 81 to and from the feeder set section 24 of each component mounter 12. When performing automatic replacement of the feeder 14 and the nozzle cleaning unit 81, the automatic replacement device 26 reads the feeder ID and the unit ID from the feeder identification information recording unit of the feeder 14 and the unit identification information recording unit of the nozzle cleaning unit 81. An information reading unit (not shown) is provided, and the feeder 14 and the nozzle cleaning unit 81 are identified based on the feeder ID and the unit ID read by the identification information reading unit.

  Below the feeder set section 24 of each component mounter 12, a stock section 71 for temporarily storing a plurality of replacement feeders 14 to be set in the feeder set section 24 and the nozzle cleaning unit 81 is provided. The automatic exchange device 26 takes out the feeder 14 and the nozzle cleaning unit 81 to be exchanged from the feeder set unit 24 of each component mounter 12 and collects them in the stock unit 71, and designates them from the stock unit 71 by a production job (production program). The removed feeder 14 and nozzle cleaning unit 81 are taken out and set in the feeder set section 24 of each component mounter 12. At this time, when the replacement feeder 14 and the nozzle cleaning unit 81 are not stored in the stock unit 71 of the component mounter 12, as described later, the automatic replacement device 26 sends the replacement feeder 14 And the nozzle cleaning unit 81 is received and moved to the component mounter 12, and the replacement feeder 14 and the nozzle cleaning unit 81 are automatically replaced.

  The storage 19 is provided with a control device and a connector for communication and power supply for each slot. The feeder 14 or the nozzle cleaning unit 81 is set in a slot provided in the storage 19, and a communication / power supply connector provided in the feeder 14 or the nozzle cleaning unit 81 and a communication / power supply on the storage 19 side. When the connector is connected, the control device 20 or the control unit 83 of the feeder 14 or the nozzle cleaning unit 81 communicates with the control device of the storage 19, so that the control device of the storage 19 is controlled by the feeder identification information recording unit or The feeder ID or the unit ID is obtained from the unit identification information storage unit. Further, the control device of the storage 19 can recognize which feeder 14 or the nozzle cleaning unit 81 is set in which slot by communication with the control device 20 or the control unit 83. The control device of the storage 19 may be communicably connected to the production management computer 70 via the network 28.

  On the front side of the component mounting line 10, a guide rail 74 for moving the automatic exchange device 26 in the left-right direction (X direction) along the arrangement of the component mounting machines 12 is provided so as to extend in the X direction over the entire component mounting line 10. The automatic exchange device 26 moves between the uppermost storage 19 of the component mounting line 10 and the lowermost component mounting machine 12. The automatic exchange device 26 takes out the feeder 14 or the nozzle cleaning unit 81 specified by the production job from the storage 19 and transports the feeder 14 or the nozzle cleaning unit 81 to the stock unit 71 of the specified component mounter 12 or the used feeder 14 or the nozzle. The cleaning unit 81 is taken out of the stock unit 71 and collected in the storage 19.

  As shown in FIG. 3, the control device 20 of each component mounting machine 12 of the component mounting line 10 and the control device 27 of the automatic exchange device 26 include a production management computer 70 (management device) that manages the entire component mounting line 10. They are communicably connected to each other via a network 28 such as a wired LAN or a wireless LAN. The production management computer 70 manages the operation of each component mounter 12 of the component mounting line 10 and the operation of the automatic exchange device 26. . For example, information on which ID of the feeder 14 or the nozzle cleaning unit 81 is set in which slot of the stock unit 71 of which component mounter 12 is obtained by communication via the network 28 by the control device 27 of the automatic exchange device 26. Is managed by the production management computer 70 or the control device 20 of the component mounting machine 12.

  Further, the component mounting line 10 according to the present embodiment includes a unit transport device 76 (see FIG. 1) that automatically travels between a work place where the worker works and the storage 19, and the worker places the unit at the work place. The replacement feeder 14 and the nozzle cleaning unit 81 are loaded on the transport device 76 and transported to the storage 19 by the unit transport device 76. The unit transport device 76 transfers the replacement feeder 14 and the nozzle cleaning unit 81 to the storage 19. In addition to the reloading, the replaced feeder 14 and the replaced nozzle cleaning unit 81 collected in the storage 19 are placed on the unit transport device 76 and returned to the work place. In this way, the worker can supply the replacement feeder 14 and the nozzle cleaning unit 81 and maintain and repair the collected replacement feeder 14 and the nozzle cleaning unit 81 at a work place away from the storage 19. It can be performed efficiently. It should be noted that a unit transfer mechanism (not shown) for mounting the feeder 14 and the nozzle cleaning unit 81 between the storage 19 and the storage 19 is mounted on the unit transport device 76.

  The production management computer 70 communicates with the unit carrier 76 via a wireless LAN or the like, and also manages the operation of the unit carrier 76. In this embodiment, the work place where the worker works and the unit transport device 76 are shared by a plurality of component mounting lines 10. In this way, the replacement feeder 14 and the nozzle cleaning unit 81 are supplied to the storage 19 of the plurality of component mounting lines 10, and the replaced feeder 14 and the nozzles collected from the plurality of component mounting lines 10 are replaced. The same operator can perform maintenance and repair of the cleaning unit 81 at a common work place, and there is no need to provide a work place or a unit transport device 76 for each component mounting line 10, and the plant The plurality of component mounting lines 10 can be installed compactly, and the number of workers engaged in management of the plurality of component mounting lines 10 can be reduced, thereby further saving labor.

  The control device 20 and / or the production management computer 70 of each component mounter 12 serve as a monitoring device for monitoring the cleaning execution status (adhesion status of foreign matter such as dust) and the production status of the suction nozzle of each component mounter 12. A function is installed, and the automatic exchange device 26 moves along the arrangement of the plurality of component mounters 12 of the component mounting line 10 based on the monitoring result of the monitoring device, and performs a nozzle cleaning unit between the component mounters 12. 81 is reused.

  Specifically, the monitoring device monitors whether the suction nozzle of each component mounter 12 needs to be cleaned based on the operation data of each component mounter 12. At this time, as operation data of each component mounter 12, the operation time of the suction nozzle, the number of times of suction of the component, the frequency of occurrence of the component suction error, the component suction rate (the component suction success rate or the component suction failure rate), and the suction of the suction nozzle. It is sufficient to monitor whether or not the suction nozzle of each component mounter 12 needs to be cleaned using at least one of the frequency of occurrence of image processing errors of the component or data correlated therewith. Note that the frequency of occurrence of the component suction error or the image processing error may be, for example, the number of occurrences of an error per a predetermined number of times (per a predetermined time), or the number of consecutive occurrences of an error. Data indicating whether a suction error or an image processing error is likely to occur may be used.

  Alternatively, while the suction nozzle of each component mounter 12 is not performing the component suction / mounting operation, the suction nozzle is imaged by the component imaging camera, and the presence or absence of foreign matter such as dust adhered to the suction nozzle by image processing is recognized. Then, it may be monitored whether or not the suction nozzle of each component mounter 12 needs to be cleaned.

  When the monitoring device determines that the suction nozzle of any of the component mounters 12 needs to be cleaned based on the monitoring result, the nozzle cleaning unit 81 is set in the feeder set unit 24 of the component mounter 12. Is determined. As a result, when the monitoring device determines that the nozzle cleaning unit 81 is not set in the feeder set section 24 of the component mounting machine 12, the monitoring device controls the control device 27 of the automatic exchange device 26 to control the component mounting machine. A signal to instruct to set the nozzle cleaning unit 81 to the twelve feeder set units 24 is output. Thereby, the automatic exchange device 26 sets the nozzle cleaning unit 81 in the feeder set section 24 of the component mounter 12.

  At this time, if there is no empty slot in the feeder set unit 24 of the component mounter 12, the automatic exchange device 26 can take out any one of the plurality of feeders 14 set in the feeder set unit 24. Wait until the state is reached, and when any one of the feeders 14 can be taken out, the feeder 14 is taken out and the nozzle cleaning unit 81 is set. When the component mounter 12 has stopped due to an error, even if there is no empty slot in the feeder set section 24 of the component mounter 12, the automatic exchange device 26 does not need to wait, so One of the feeders 14 set in the feeder setting section 24 is taken out, and the nozzle cleaning unit 81 is set. The information on the presence / absence and position of the empty slot is determined by the control device 20 of the component mounter 12 whether or not there is communication between the control device 20 of the component mounter 12 and the control device 20 or the control unit 83 of the feeder 14 or the nozzle cleaning unit 81. May be determined based on Alternatively, if the feeder set unit 24 is provided with a sensor that detects whether or not the feeder 14 or the nozzle cleaning unit 81 is mounted, the control device 20 of the component mounter determines whether an empty slot is present based on the detection of the sensor. The presence / absence and position may be determined.

  Thereafter, the control device 20 of the component mounter 12 outputs a cleaning start signal to the control unit 83 of the nozzle cleaning unit 81 set in the feeder set unit 24. As a result, the control unit 83 of the nozzle cleaning unit 81 energizes the motor 93 to operate the elevating mechanism 87, and as shown in FIG. 7, raises and stops the brush 86 from the retracted position to the cleaning position. At this time, the height of the cleaning position is determined according to the type of the suction nozzle based on the identification information of the suction nozzle to be cleaned, which is transmitted from the component mounter 12 control device 20 to the control unit 83 of the nozzle cleaning unit 81. To change.

  On the other hand, the control device 20 of the component mounter 12 moves the suction nozzle to be cleaned to a position directly above the brush 86 of the nozzle cleaning unit 81 by a mounting head moving device (not shown), and then moves the suction nozzle. By lowering and inserting the entire portion from the tip (lower end) to the root of the suction nozzle into the brush 86, the portion from the tip to the root of the suction nozzle is cleaned. At this time, the suction nozzle may be reciprocated (vibrated) in the X and Y directions, moved up and down or rotated in the brush 86 to enhance the cleaning effect. Alternatively, the brush 86 may be rotated during cleaning.

  Thereafter, the control device 20 of the component mounter 12 raises the suction nozzle to return to the original position when cleaning is completed, and outputs a cleaning completion signal to the control unit 83 of the nozzle cleaning unit 81. As a result, the control unit 83 of the nozzle cleaning unit 81 energizes the motor 93 to operate the elevating device 87, and lowers and stops the brush 86 from the cleaning position to the retracted position as shown in FIG. In this way, by lowering the brush 86 to the retracted position at the end of cleaning, it is possible to prevent the brush 86 from interfering with the suction nozzle or the like at the time of automatic replacement of the nozzle cleaning unit 81 or at the time of component suction operation of the component mounter 12. This prevents the brush 86 from being in the way.

  Further, the control device 20 or the production management computer 70 of the component mounter 12 after the cleaning of the suction nozzle is completed, sends the control device 27 of the automatic exchange device 26 from the feeder set section 24 of the component mounter 12 to the nozzle cleaning unit. It outputs a signal instructing that 81 be taken out. Thereby, the automatic replacing device 26 takes out the nozzle cleaning unit 81 from the feeder set part 24 of the component mounting machine 12 after the cleaning of the suction nozzle and collects it in the stock part 71, and replaces it with the feeder as necessary. 14 is set in the feeder setting section 24.

  Incidentally, even if the nozzle cleaning unit 81 is not taken out from the feeder set section 24 of the component mounting machine 12 immediately after the cleaning of the suction nozzle, the production of the component mounting machine 12 is not hindered, and the nozzle cleaning unit 81 is removed. If it is not necessary to carry the feeder 14 to another component mounter 12, the nozzle cleaning unit 81 is set in the feeder set section 24 of the component mounter 12 for a while after the cleaning is completed, and the automatic exchange device 26 After waiting for a standby state in which the automatic replacement operation is not performed, the nozzle cleaning unit 81 is taken out from the feeder set section 24 of the component mounter 12 and collected in the stock section 71 or conveyed to another component mounter 12. You may do it.

  In addition, when the automatic replacement instruction of the nozzle cleaning unit 81 and the automatic replacement instruction of the feeder 14 overlap during the operation of each component mounter 12, the automatic replacement device 26 performs the automatic replacement of the feeder 14 first. , The nozzle cleaning unit 81 is automatically replaced. The automatic replacement of the feeder 14 may lead to a delay in production even if it is slightly delayed, but the automatic replacement of the nozzle cleaning unit 81 does not lead to a delay in production even if it is delayed a little. When the automatic replacement instruction of 81 and the automatic replacement instruction of the feeder 14 overlap, the automatic replacement of the feeder 14 is given priority over the automatic replacement of the nozzle cleaning unit 81.

  In the present embodiment described above, the nozzle cleaning unit 81 can be automatically replaced by using the automatic replacement device 26 that automatically replaces the feeder 14 set in the feeder setting section 24 of the component mounter 12, so that the nozzle cleaning is performed. There is no need for the operator to manually replace the unit 81, and labor can be saved. In addition, since one nozzle cleaning unit 81 can be reused for a plurality of component mounters 12, the number of nozzle cleaning units 81 to be prepared can be reduced, and the cost of preparing the nozzle cleaning units 81 can be reduced. Can be reduced.

  Further, when it becomes necessary to clean the suction nozzle of the component mounter 12, the nozzle cleaning unit 81 is quickly set in the feeder set section 24 of the component mounter 12 by the automatic exchange device 26, and the cleaning is completed after the cleaning is completed. The nozzle cleaning unit 81 can be quickly taken out, the suction nozzle can be efficiently cleaned, the productivity can be prevented from lowering, and the component mounting due to the worker's mistake in attaching and detaching the nozzle cleaning unit 81. An error stop of the machine 12 can also be prevented.

  In this embodiment, the brush 86 of the nozzle cleaning unit 81 is moved up and down between the cleaning position and the retracted position. However, it goes without saying that the brush 86 may be fixed at a fixed position.

  Further, a usable nozzle cleaning unit is not limited to a configuration using a brush, and for example, a nozzle cleaning unit having a different cleaning method may be used, such as a configuration in which air is blown to a suction nozzle for cleaning. You may do it.

  In addition, the present invention is not limited to the above-described embodiment. For example, the automatic replacement timing of the nozzle cleaning unit 81 is appropriately changed, the configuration of the component mounting line 10 or the automatic replacement device 26 is changed, It goes without saying that various modifications can be made without departing from the gist of the invention, such as a configuration in which the configuration is omitted.

  DESCRIPTION OF SYMBOLS 10 ... Component mounting line, 11 ... Circuit board, 12 ... Component mounting machine, 14 ... Cassette type feeder, 15 ... Mounting head, 16 ... Head moving device, 19 ... Storage, 20 ... Control device of component mounting machine (monitoring) 24) Feeder set unit, 26 ... Automatic exchange device, 70 ... Production management computer (monitoring device), 71 ... Stock unit, 76 ... Unit transport device, 81 ... Cassette type nozzle cleaning unit, 86 ... Brush

Claims (9)

A nozzle cleaning unit automatic replacement system for automatically replacing a nozzle cleaning unit for cleaning a suction nozzle of a component mounter,
The nozzle cleaning unit is configured to be set exchangeably with a feeder in a feeder set section of the component mounting machine,
A plurality of feeders to be set in the feeder set unit and a stock unit that stores the nozzle cleaning unit;
An automatic exchange device that takes out a feeder to be replaced from the feeder set unit, collects the feeder in the stock unit, and takes out a designated feeder from the stock unit and sets it in the feeder set unit;
A nozzle cleaning unit automatic replacement system, wherein the automatic replacement device removes the nozzle cleaning unit from the stock unit and sets the nozzle cleaning unit in the feeder set unit when cleaning the suction nozzle.   The automatic exchange device, when setting the nozzle cleaning unit in the feeder set unit during the operation of the component mounting machine, if there is no empty slot in the feeder set unit, it is set in the feeder set unit Waiting until one of the plurality of feeders is ready to be taken out, and when any one of the feeders is ready to be taken out, take out the feeder and set the nozzle cleaning unit. The nozzle cleaning unit automatic replacement system according to 1.   The automatic replacement device, when the automatic replacement instruction of the nozzle cleaning unit and the automatic replacement instruction of the feeder overlap during the operation of the component mounting machine, first performs the automatic replacement of the feeder, and then performs the nozzle cleaning. The nozzle cleaning unit automatic replacement system according to claim 1, wherein the unit is automatically replaced. The nozzle cleaning unit has a height dimension and a depth dimension common to the height dimension and the depth dimension of the feeder,
The nozzle cleaning unit automatic replacement system according to any one of claims 1 to 3, wherein a mounting structure of the nozzle cleaning unit to the feeder set unit is shared with a mounting structure of the feeder.   The nozzle cleaning unit includes a brush that cleans the suction nozzle, and an elevating device that moves the brush up and down, and a cleaning position that cleans the suction nozzle by the elevating device when cleaning the suction nozzle. The nozzle cleaning unit automatic replacement system according to any one of claims 1 to 4, wherein the brush is lowered from the cleaning position to a retracted position below the cleaning position after cleaning is completed. A plurality of the component mounting machines are arranged along a transport path for transporting a circuit board, and are applied to a component mounting line that produces a component mounting board by mounting components on the circuit board with each component mounting machine,
The said automatic exchange device moves along the arrangement | sequence of the said several component mounting machine, and automatically exchanges the said feeder and the said nozzle cleaning unit with the feeder set part of each said component mounting machine, The claim 1 thru | or 5. The automatic nozzle cleaning unit exchange system according to any one of 5. A monitoring device that monitors the cleaning execution status and the production status of the suction nozzle of each of the component mounting machines,
7. The automatic exchange device according to claim 6, wherein the automatic exchange device moves along the arrangement of the plurality of component mounters and reuses the nozzle cleaning unit among the component mounters based on a monitoring result of the monitoring device. 8. Nozzle cleaning unit automatic replacement system. The monitoring device monitors whether or not the suction nozzle of each of the component mounting machines needs to be cleaned based on the operation data of each of the component mounting machines,
8. The nozzle cleaning unit according to claim 7, wherein the automatic exchange device sets the nozzle cleaning unit to a feeder set unit of a component mounter for which it is determined that the suction nozzle needs to be cleaned based on a monitoring result of the monitoring device. Unit automatic exchange system.   The monitoring device may include, as operation data of each of the component mounters, a use time of the suction nozzle, a component suction frequency, a frequency of occurrence of a component suction error, a component suction rate, and occurrence of an image processing error of the component suctioned by the suction nozzle. The nozzle cleaning unit automatic replacement system according to claim 8, wherein whether or not the suction nozzle of each of the component mounting machines needs to be cleaned is monitored based on at least one of the frequencies or data correlated thereto.

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