Component assembly system and assembly tool feeder

Abstract

A component mounting system comprising: a plurality of component mounters, each configured to hold component mounting tools used in mounting a component on a printed circuit board at a predetermined replacement position in the component mounter so that they can be automatically replaced, wherein the component mounters are arranged side by side to configure a production line for printed circuit board products; a transport device configured to transport the component mounting tools between a storage area configured to store the component mounting tools outside the component mounter or inside the component mounter except for the replacement position, and the replacement position of the component mounter, and between the replacement positions of the plurality of component mounters;and a plan creation section configured to create a transportation plan for the component mounting tools using the transportation device based on a production plan indicating a type and production order of the printed circuit board product, and facility information indicating the types and numbers of component mounting tools used by each of the plurality of component mounters for each type of the printed circuit board product, or maintenance information indicating the maintenance times of the component mounting tools.;

Description

Technical FieldThe present invention relates to a component mounting system including a plurality of component mounters configuring a production line for a printed circuit board product, and a mounting tool feeder applicable to the component mounting system.Prior ArtMass production of printed circuit board products by performing printed circuit board work on a printed circuit board having a wiring pattern formed thereon is widely used. In addition, it is common to arrange a plurality of types of board working machines side by side to configure a printed circuit product production line. A representative example of a circuit board working machine is a component mounter for mounting a component on a circuit board. A large number of component mounters use suction nozzles as component mounting tools for mounting components. Because the type and size of a component to be mounted are different for each type of printed circuit board product, a component assembler exchanges the suction nozzles with different types of suction nozzles corresponding to the sizes of the different components, respectively. Therefore, a technique for automatically replacing suction nozzles on a component mounter or a production line has been developed (related art is described in Patent Literatures 1 to 4).Patent Literature 1 provides a component mounter including: an in-machine nozzle station that receives a suction nozzle and is disposed within the movement range of a mounting head; a nozzle replacement unit that receives a suction nozzle and is interchangeably set in a feeder setting portion; and a controller that selects and executes automatic replacement of a suction nozzle between the mounting head and the in-machine nozzle station and automatic replacement of a suction nozzle between the mounting head and the nozzle replacement unit. Further, there is provided a component mounting line management system, the system comprising: an automatic exchange device that automatically exchanges a nozzle exchange unit in a feeder setting section of a plurality of component mounters of the component mounting line; and a production management device that sets an empty nozzle exchange unit in a line using the automatic exchange device when an empty nozzle exchange unit is requested from one of the component mounters. Thereby, an increase in the size and the number of the in-machine nozzle station and the nozzle replacement unit can be avoided, and an increase in the number of suction nozzles for replacement can be promoted while satisfying a requirement for saving space.Patent Literature 2 provides a cartridge type nozzle exchange unit which is a form of nozzle exchange unit. Further, Patent Literature 3 provides a component feeding device that stores a tool tray having a component holding tool (a suction nozzle) accommodated therein and feeds the tool tray to a component feeding position instead of a tray having an electronic component accommodated therein, as another form of the nozzle replacement unit. Patent Literature 4 provides a nozzle cleaning apparatus that receives an in-machine nozzle station remote from a component mounter and performs maintenance of a suction nozzle.Reference listPatent LiteraturePatent Literature 1: Japanese Patent No. 6870070Patent Literature 2: Japanese Patent No. 6037581Patent Literature 3: JP-A-2000-91795Patent Literature 4: JP-A-2020-74447SUMMARY OF THE INVENTIONTechnical ProblemIn the component mounter of Patent Literature 1, an increase in the number of suction nozzles to be replaced can be promoted by picking up the suction nozzles at a plurality of positions (in-machine nozzle station and nozzle replacement unit). Technical examples of Patent Literatures 2 and 3 are based on the same technical idea. Generally, the suction nozzle must be replaced every time the type of printed circuit board product is changed, and the replacement frequency must be increased particularly in a production form having large variations and small numbers. Thus, in order to assist in increasing the number of suction nozzles, not only an apparatus configuration needs to be improved, but also an operation technology for using a limited number of suction nozzles needs to be improved in a scheduled and efficient manner. In addition, it is important to perform maintenance of the suction nozzle in time to ensure efficient operation and high assembly reliability.It is therefore an object of the invention to provide a component mounting system which can establish a transport plan for scheduled transport of component mounting tools in a production line of a printed circuit board product and for efficient operation of the component mounting tools, and further to provide a component mounting tool feeder which can be applied to the component mounting system and can interchangeably feed the component mounting tools.Solution to ProblemsThe present invention provides a component mounting system comprising: a plurality of component mounters configured to respectively hold component mounting tools used for mounting a component on a circuit board at a predetermined replacement position in the component mounter so as to be automatically replaced, the component mounters being arranged side by side to configure a printed board product production line; a transfer device configured to transfer the component mounting tools between a storage area configured to store the component mounting tools either outside the component mounter or inside the component mounter except the replacement position, and the replacement position of the component mounter, and between the replacement positions of the plurality of component mounters; and a plan creation section configured to create a transport plan for the component mounting tools using the transport device based on a production plan indicating a type and a production order of the board product and facility information indicating the types and the numbers of the component mounting tools used by each of the plurality of component mounters for each type of the board product, or maintenance information indicating the maintenance times of the component mounting tools.The present invention provides: a technical idea according to which the "component mounting system according to claim 1 or 2" at the beginning of claim 6 is changed to the "component mounting system according to any one of claims 1 to 5"; a technical idea according to which the "component mounting system according to claim 6" at the beginning of claim 8 is changed to the "component mounting system according to claim 6 or 7"; a technical idea according to which the "component mounting system according to claim 6" at the beginning of claim 10 is changed to the "component mounting system according to claim 6 or 7"; a technical idea according to which the "component mounting system according to claim 6" at the beginning of claim 12 is changed to the "component mounting system according to any one of claims 6 to 11"; and a technical idea according to which the "component mounting system according to claim 6" at the beginning of claim 13 is changed to the "component mounting system according to any one of claims 6 to 12".Further, the present invention provides a mounting tool feeder comprising: a mounting tool holding unit configured to removably hold component mounting tools that uses a component mounter in mounting a component on a circuit board, the mounting tool holding unit having the same configuration as a mounting tool station disposed at a predetermined first replacement position at which automatic replacement of the component mounting tools in the component mounter is enabled; and a mounting portion removably mounted on the component mounter such that the mounting tool holding unit is disposed at a predetermined second replacement position in the component mounter.Further, the present invention provides a mounting tool feeder including: a mounting tool holding unit configured to removably hold component mounting tools that uses a component mounter in mounting a component on a circuit board; a storage magazine configured to store a plurality of mounting tool holding units; an exchange mechanism configured to selectively guide the mounting tool holding unit out of the storage magazine and to arrange the mounting tool holding unit at a predetermined exchange position at which automatic exchange of the component mounting tools is enabled in the component mounter; and a mounting portion mounted to the component mounter.Advantageous Effects of the InventionIn the component mounting system of the present invention, the plan creation section creates the transport plan of the suction nozzle based on the production plan of the printed circuit board product and the facility information or maintenance information. At this time, the component mounting system can create the transport plan for transport of the component mounting tools scheduled with a type and a number required in the production line without excess or shortage and for timely and efficient operation of the component mounting tools for which a maintenance time has been achieved. Further, the mounting tool feeder may be applied to the component mounter of the component mounting system, and may interchangeably feed the component mounting tools.Brief Description of the DrawingsFIG. 1 is a plan view showing an overall configuration example of a component mounter in a production line of a printed circuit board product. FIG. 2 is a side view of a tape feeder removably attached to the component mounter. FIG. 3 is a perspective view showing a suction nozzle as a form of a component mounting tool. FIG. 4 is a perspective view of a nozzle feeder (mounting tool feeder) that is removably attached to the component mounter and feeds the suction nozzle (component mounting tool). FIG. 5 is a perspective view of a nozzle holding unit (mounting tool holding unit) provided in the nozzle feeder of FIG. 4. FIG. 6 is a cross-sectional view showing a state in which the nozzle holding unit holds the suction nozzle. FIG. 7 is a perspective view schematically showing the production line of the printed circuit board product and a transport device. FIG. 8 is a block diagram showing a configuration related to control of a component mounting system according to a first embodiment. FIG. 9 is an operation flowchart showing the operation of the component mounting system. FIG. 10 is a table showing an example of a production plan and facility information required for the plan creation section. FIG. 11 is a schematic view of a rough transport plan created by the plan creation section. FIG. 12 is a schematic view of a detailed transport plan created by the plan creation section. FIG. 13 is a perspective view of a nozzle feeder according to an application example. FIG. 14 is a schematic perspective view of a configuration of a component mounting system according to a second embodiment.DESCRIPTION OF EMBODIMENTS1. Overall Configuration Example of Component Mounter 93First, an overall configuration example of a component mounter 93 in a mounting system 1 according to a first embodiment will be described with reference to FIG. 1. The component mounter 93 performs mounting work for mounting a component on a circuit board K. The horizontal direction from a left side to a right side in the drawing plane of FIG. 1 is an X-axis direction in which the circuit board K is transported, a horizontal direction from a lower side (front side) to an upper side (rear side) in the drawing plane is a Y-axis direction, and a vertical direction is a Z-axis direction. The component mounter 93 is configured by mounting a board conveying device 2, a component feeding device 3, a component transfer device 4, a control device 5 (see FIG. 8 ), etc. on a base 10.The circuit board conveying device 2 includes a pair of guide rails 21, a pair of conveyor belts (not shown), a clamping mechanism 23, etc. The pair of guide rails 21 extends in a conveying direction (X-axis direction) across the center of an upper surface of the base 10 and is mounted parallel to the base 10. The pair of conveyor belts rotate along the guide rails 21 in a state where two parallel sides of the circuit board K are placed, and insert a circuit board K to a stop position adjacent to the center of the base 10. The clamping mechanism 23 pushes up a transported circuit board K, clamps and positions the circuit board K between the guide rails 21, After the work for mounting a component by the component transfer device 4 is finished, the clamping mechanism 23 releases the circuit board K and the transport belts guide the circuit board K to the outside of the device.The component feeding device 3 is disposed at a front part of the upper surface of the base 10 in the Y-axis direction. The component supply device 3 includes a pallet table 31 and a plurality of tape feeders 33. The pallet table 31 includes a plurality of slits 32 extending in parallel and separated from each other in the Y-axis direction. A plurality of tape feeders 33 are inserted into and removably attached to the slots 32. Each tape feeder 33 feeds a carrier tape in which a plurality of components are accommodated in a row to a feeding position 36 on the rear side and feeds the components so that the components can be accepted at a feeding position 36. Details of the tape feeder 33 will be described later. A component feeder other than the tape feeder 33, such as a tray feeder using a tray having a plurality of components accommodated therein in a two-dimensional grid shape, or a rod feeder using a cylindrical rod having a plurality of components accommodated therein in a row, may also be removably attached to the pallet table 31.The component transfer device 4 includes a Y-axis moving body 41, an X-axis moving body 42, a mounting head 43, a nozzle tool 44, a plurality of suction nozzles 45, a printed circuit camera 46, a part camera 47, a nozzle station 48, etc. The Y-axis moving body 41 is formed of a body elongated in the X-axis direction and is driven for movement in the Y-axis direction by an X-axis direction drive mechanism. The X-axis moving body 42 is mounted on the Y-axis moving body 41, is driven by an X-axis direction driving mechanism, and moves in the X-axis direction. The mounting head 43 is attached to a front surface of an X-axis moving body 42. The mounting head 43 is driven in the two horizontal directions together with the X-axis moving body 42 and moves to positions above the component feeder 3 and above the circuit board K.The nozzle tool 44 is provided as a rotationally symmetric body below the mounting head 43. The nozzle tool 44 is driven for rotation about a vertical central axis by an R-axis motion mechanism (not shown). The nozzle tool 44 includes a plurality (20 in the example of FIG. 1 ) of suction nozzles 45 that are disposed at equal distances from the vertical center axis and can be automatically replaced. The suction nozzle 45 is driven for raising and lowering by a raising / lowering drive mechanism (not shown) and is driven for rotation about a vertical axis by a Q-axis drive mechanism (not shown). The suction nozzle 45 is further selectively supplied with negative pressure air and positive pressure air from an air supply mechanism. In this way, the suction nozzle 45 performs a picking process for picking up a component from the component supply device 3 and a mounting process for mounting the component on the circuit board K at the stop position. No nozzle tool 44 needs to be provided in the mounting head 43, and a plurality of suction nozzles 45 may be arranged in a row or in a raster shape. In addition, a component mounting tool other than the suction nozzle 45 and, for example, a chuck-type mounting tool for gripping a component in the mounting head 43 may be provided automatically interchangeably.A printed circuit camera 46 is provided on the X-axis moving body 42 side adjacent to the mounting head 43 so as to face downward. The board camera 46 captures an image of a position reference mark attached to the board K from above. The obtained image data is subjected to image processing, so that the stop position of the circuit board K is accurately obtained. A parts camera 47 is provided on the base 10 between the board conveying device 2 and the component feeding device 3 so as to face upward. The parts camera 47 captures an image of the component held by the suction nozzle 45 from below and recognizes the component as the mounting head 43 moves from the component supply device 3 to the circuit board K. Thereby, it is determined whether the type of the component is correct or incorrect, and the position and orientation of the component with respect to the suction nozzle 45 are detected and taken into account in the mounting process. The printed circuit camera 46 and the division camera 47 are each a digital image pickup device including an image pickup element such as a charge coupled device (CCD) or a complementary metal-oxide semiconductor (CMOS), for example.The nozzle station 48 (mounting tool station) is removably provided in the vicinity of the parts camera 47 between the board conveying device 2 and the component feeding device 3. The nozzle station 48 holds a plurality of suction nozzles 45 so that they can be replaced automatically. The mounting head 43 sequentially performs automatic replacement of the suction nozzles 45 while the mounting head 43 moves to the nozzle station 48. Accordingly, a mounting position of the nozzle station 48 is a predetermined first replacement position in the apparatus at which the mounting head 43 performs the automatic replacement of the suction nozzle 45. Due to the automatic replacement, plural types of suction nozzles 45 can be used and various sizes of components can be automatically handled. The attachment and removal of the nozzle station 48 is performed by a worker while the component mounter 93 is not operated.The control device 5 is mounted on the base 10, and no particular limitation is imposed on the arrangement position thereof. The control device 5 includes a computing device. The control device 5 may be configured such that a plurality of CPUs are distributed and arranged in the device and connected to each other for communication. The control device 5 controls the board conveying device 2, the component feeding device 3, and the component transfer device 4 based on mounting work data prepared for each type of board, and advances the mounting work for the component. The assembly work data describes a detailed procedure for the assembly work.2. Configuration of Tape Feeder 33Next, a configuration of a tape feeder 33 will be described with reference to FIG. 2. The tape feeder 33 is thinly provided in a width direction (X-axis direction) by mounting various members on a frame body 34 including a side plate. The tape feeder 33 includes the frame body 34, a tape conveying mechanism 35, a feeding position 36, a feeder control portion 37, a protrusion 38, an upper positioning pin 39, a lower positioning pin 3A, a connector 3B, and a locking mechanism 3C.The frame body 34 includes a bobbin accommodating frame 341, an accommodating plate 342, and an opening / closing plate 343. The bobbin accommodating frame 341 includes a plurality of members forming a large circular inner space substantially at the center of the frame body 34. The reel receiving frame 341 rotatably receives a tape reel TR in the internal space. The take-up plate 342 that prevents removal of the tape reel TR is mounted at a position below the reel take-up frame 341. The opening / closing plate 343 capable of performing an opening / closing operation is mounted at a position above a middle height of the bobbin receiving frame 341. By opening the opening / closing plate 343, the spool TR can be inserted and removed. A carrier tape having a plurality of devices provided thereon in a row is wound around the tape reel TR.The belt conveying mechanism 35 is provided at a rear upper part of the frame body 34. The tape feeding mechanism 35 pulls the carrier tape from the tape reel TR and guides the carrier tape to the feeding position 36 provided at the rear part of an upper surface of the frame body 34. The tape conveying mechanism 35 includes a sprocket that fits in conveying holes of the carrier tape, a motor that drives and rotates the sprocket, etc. A feeder control portion 37 is disposed at a lower front part of the frame body 34, but may be provided at another position. The feeder control section 37 controls the tape conveying mechanism 35 and monitors the state of the locking mechanism 3C. The feeder control portion 37 is communicatively connected to the control device 5 of the component mounter 93 via the connector 3B, and performs control according to a command from the control device 5.The protrusion 38 protrudes downward from a lower surface of the frame body 34 and extends in the Y-axis direction. The projection 38 is inserted into the slot 32 of the pallet table 31, thereby mounting the tape feeder 33 thereto. An upper positioning pin 39 and a lower positioning pin 3A are provided on the upper part of the front surface of the frame body 34 and separated from each other in an up-down direction. The upper positioning pin 39 and the lower positioning pin 3A are fitted into a positioning hole (not shown) of the pallet table 31 to position the tape feeder 33. The connector 3B is disposed between the upper positioning pin 39 and the lower positioning pin 3A. The connector 3B provides power supply and communication connection to the tape feeder 33, When the tape feeder 33 is positioned, the connector 3B is automatically fitted into a female connector (not shown) of the pallet table 31.The lock mechanism 3C is provided at an upper front part of the frame body 34 and is configured using a lock member 3D having an approximately F-shape. The locking member 3D has a holding point 3E provided substantially at the center of the F shape and swingably held by the frame body 34. The lock member 3D further includes a lock lever 3F extending rearward from the stopping point 3E, bent and extending upward, a manual operation lever 3G extending forward from the stopping point 3E, and an automatic operation lever 3H extending upward from the stopping point 3E. In an attached state of the tape feeder 33, the locking member 3D is biased by a biasing spring 3J and oscillates counterclockwise in FIG. 2 about the support point 3E. Therefore, the lock lever 3F protrudes upward from the upper surface of the frame body 34 and engages with a lock hole (not shown) provided in the base 20, so that the lock mechanism 3C is in a locked state. Thereby, removal of the tape feeder 33 is suppressed.When the worker or the transport device 7 described later inserts and attaches the tape feeder 33 into the slot 32, the lock lever 3F comes into contact with the base 10 so as to be automatically lowered and brought to a released state in which the lock lever 3F is accommodated in the frame body 34. Thereby, the lock mechanism 3C is temporarily unlocked. When the worker removes the tape feeder 33, the worker operates the operation lever 3G upward to swing the locking member 3D in the clockwise direction of FIG. 2 and thereby release the locking mechanism 3C. When the tape feeder 33 is removed, the transport device 7 operates the automatic operation lever 3H to release the lock mechanism 3C. The protrusion 38, the upper positioning pin 39, the lower positioning pin 3A, the connector 3B, and the locking mechanism 3C are a form of attachment portion in which the tape feeder 33 is removably attached to the component mounter 93. The applicant of the present application describes a detailed configuration example of the tape feeder 33 in WO 2019 / 239474.3. Configuration of Suction Nozzle 45Next, a configuration of the suction nozzle 45 will be described with reference to FIG. 3. The suction nozzle 45 includes a body shaft 451, a flange 452, a nozzle shaft 454, and an identification code 455. The body shaft 451 is formed in a cylindrical shape. The flange 452 is formed in a circular plate shape and has a larger diameter than the body shaft 451, and is coupled to one end side (a lower side in FIG. 3 ) in an axial direction of the body shaft 451. A groove 453, which is recessed toward the center side, is formed in a part of an outer peripheral edge of the flange 452. The groove 453 serves to fix a rotation angle about the axis when the suction nozzle 45 is held by the nozzle tool 44, or to measure the rotation angle.The nozzle shaft 454 is formed in a circular tube shape and extends in the axial direction from the body shaft 451. The nozzle shaft 454 is a part where the opening of a distal end part comes into contact with a component and performs suction gripping. The nozzle shaft 454 is configured to be movable rearward and forward in the axial direction with respect to the nozzle shaft 451. The nozzle shaft 454 is biased by an elastic member (not shown) in a direction extended from a body shaft 451. When a load directed to the body shaft 451 is applied to the distal end part, the nozzle shaft 454 retracts into the inside of the body shaft 451 against an elastic force of the elastic member. Thereby, the shock and the load value applied to the component from the suction nozzle 45 during the picking-up process and the mounting process are reduced.The identification code 455 is attached to the upper surface of the flange 452. The identification code 455 is, for example, a two-dimensional code and includes unique information such as the type and individual information of the suction nozzle 45. the identification code 455 is read by a code reader (not shown) and is associated with management information (9A, 9B) described later. In this way, a current position, a current state, a usage history, and the like of the suction nozzle 45 can be managed.There are plural types of suction nozzles 45 depending on the size of the component serving as a picking target. A large-sized component suction nozzle 45 is formed such that at least the nozzle shaft 454 has a large thickness as compared with a small-sized component suction nozzle 45 and the opening of the distal end part is formed large. The plurality of types of suction nozzles 45 have at least the same diameter and thickness as the flange 452, and have attachment compatibility with each other. The nozzle shaft 454 is not limited to a circular pipe shape, and the opening of the distal end part is not limited to a circular shape. For example, the opening of the distal end part may be elliptical or caelebus-shaped, and the nozzle shaft 454 may be formed with a tubular shape having a non-circular cross section such that the shape corresponds to the non-circular opening.4. Configuration of Nozzle Feeder 6Next, a configuration of a nozzle feeder 6 will be described with reference to FIGS. 1 and 4 to 6. The nozzle feeder 6 is a form of a mounting tool feeder that removably holds a plurality of component mounting tools (suction nozzles 45) and enables automatic replacement of the component mounting tools at the replacement position of the component assembler 93. The nozzle feeder 6 has substantially the same outer shape as the tape feeder 33 except for a width dimension in the X-axis direction, and has attachment compatibility with the tape feeder 33. That is, the tape feeder 6 has substantially the same width dimension as the tape feeder 33 or a larger width dimension than the tape feeder 33 (about twice the width dimension in the example of FIG. 1 ) and is detachably attached to one or more slits 32 of the pallet table 31. The nozzle feeder 6 is used for transporting suction nozzles 45 between a second replacement position of the component mounter 93 and a storage area (described later), and for transporting a suction nozzle 45 between second replacement positions of a plurality of component mounters 93.As shown in FIG. 4, the nozzle feeder 6 is formed thinly in the width direction (X-axis direction) by mounting various members on a frame body 61 including a side plate. The nozzle feeder 6 includes the frame body 61, a nozzle holding unit 62, a lift / lower driving portion 63, a restriction driving portion 64, a replacement position 66, a feeder control portion 67, a protrusion, an upper positioning pin 69, a lower positioning pin, a connector, a lock mechanism 6C, and the like.The nozzle holding unit 62 can be raised and lowered at a replacement position 66 set at the rear upper part of the frame body 61. The nozzle holding unit 62 is a form of a mounting tool holding unit that detachably holds a plurality of component mounting tools (suction nozzles 45). As shown in FIGS. 5 and 6, the nozzle holding unit 62 includes a base body 621, a base plate 622, and a cover plate 625. The base body 621 is formed in a rectangular frame shape in a plan view. The base body 621 has a height dimension larger than a length dimension of the suction nozzle 45 at a distal end side of the flange 452 and ensures a receiving space for the nozzle shaft 454 of the suction nozzle 45.The base plate 622 is a shape of a receptacle member having a plurality of receptacle holes that are arranged in a plane and can receive suction nozzles 45. The base plate 622 is a long rectangular plate-shaped member extending above the base body 621. The base plate 622 includes a plurality of stepped receiving holes 623 and a plurality of fitting pins 624. The plurality of stepped accommodation holes 623 are formed in two-dimensional halftone dots having substantially equal pitch distances except for parts close to the long sides of the base plate 622. The diameter D 1 of a large diameter part of an upper part of the stepped receiving hole 623 is larger than the diameter of the flange 452 of the suction nozzle 45. The diameter D 2 of a small-diameter part of a lower part of the stepped receiving hole 623 is smaller than the diameter of the flange 452 and larger than the diameter of the body shaft 451. A plurality of dowel pins 624 are disposed at portions close to the long sides and at portions close to the center of the base plate 622, and extend upward.The cover plate 625 is a form of a restriction member that prevents a suction nozzle accommodated in a stepped accommodation hole 623 from jumping out at a time other than the time of automatic replacement. The cover plate 625 is a plate-shaped member having substantially the same shape and size as the base plate 622 and is disposed above the base plate 622 such that the cover plate 625 can be slidably moved. The cover plate 625 has a plurality of restricting holes 626 and a plurality of long holes 629. Each of the plurality of restricting holes 626 is disposed over a stepped receiving hole 623. The number of the stepped receiving holes 623 and the restriction holes 626 is set larger than the number of suction nozzles 45 of the mounting head 43. for example, in a configuration in which the mounting head 43 includes 20 suction nozzles 45, the number of the stepped receiving holes 623 and the restriction holes 626 is 21 or more. The nozzle feeder 6 can thus feed all the suction nozzles 45 automatically exchanged by the mounting head 43 together.Each of the restricting holes 626 has a shape in which a large-diameter arc part 627 and a small-diameter arc part 628 are arranged side by side in the long side direction of the cover plate 625. The diameter D 3 of the large-diameter arc part 627 is larger than the diameter of the flange 452. The diameter D4 of the small-diameter arc part 628 is smaller than the diameter of the flange 452 and larger than the diameter of the body shaft 451. In the restriction hole 626, even when a narrowed part is provided between the large-diameter part 627 and the small-diameter part 628, an opening width dimension of the restricted part may be larger than the diameter of the body shaft 451.Each of the plurality of long holes 629 is formed long in the long side direction of the cover plate 625 and is disposed at an upper side of the fitting pin 624. A clearance is provided at each of the plurality of long holes 629 to allow a dowel 624 to relatively move therein. That is, the cover plate 625 is configured to be slidably movable in the long side direction with respect to the base plate 622. Further, the fitting pin 624 has an enlarged diameter on the upper side, which fits through the long hole 629 and prevents upward deviation of the cover plate 625.The nozzle holding unit 62 is operated to a replaceable state when the suction nozzle 45 is automatically replaced. In the replaceable state of the nozzle holding unit 62, the cover plate 625 is slidably moved so that the large-diameter arc part 627 of the restricting hole 626 and the receiving stepped hole 623 vertically overlap each other. Then, the flange 452 of the suction nozzle 45 to be picked up is lowered by the large-diameter arc part 627 and placed at a step part of the stepped pickup hole 623. Further, the flange 452 of the suction nozzle 45 to be transferred is lifted from the step portion of the stepped receiving hole 623 by the large-diameter arc portion 627.At a normal time, not at a time of automatic replacement, the nozzle holding unit 62 is operated to a restriction state in which the nozzle holding unit 62 prevents the held suction nozzle 45 from jumping out. In the restricting state of the nozzle holding unit 62 shown in FIG. 6, the sliding movement of the cover plate 625 is restored to an initial position so that the small-diameter arc part 628 of the restricting hole 626 and the receiving stepped hole 623 vertically overlap with each other. The flange 452 is held and accommodated between the small diameter part of the stepped accommodation hole 623 and a peripheral edge of the small diameter arc part 628, thereby preventing the suction nozzle 45 from springing out.As shown in FIG. 4, the raising / lowering driving portion 63 and the restricting driving portion 64 are disposed on the front side of the nozzle holding unit 62. The raising / lowering driving portion 63 raises and lowers the nozzle holding unit 62 between an upper exchange position and a lower standby position via a translation mechanism (not shown in detail). The restriction driving portion 64 drives the sliding movement of the cover plate 625 via a translation mechanism (not shown in detail), and switches between the replaceable state and the restriction state of the nozzle holding unit 62, An electric device such as an electromagnetic solenoid may be used as the raising / lowering driving portion 63 and the restriction driving portion 64.The lift / lower driving portion 63 constituted by the electric device brings the nozzle holding unit 62 to the standby position in the event of a power supply loss, and thus has a fail-safe function. In other words, since the nozzle feeder 6 mounted on the component mounter 93 does not lift the nozzle holding unit 62 to the replacement position even when no current is supplied due to a failure, the nozzle holding unit 62 does not interfere with the operation of the other parts. In addition, the restriction driving section 64 constituted by the electric device brings the nozzle holding unit 62 to the restriction state at a power supply loss, and thus has a fail-safe function. With other things, even if the nozzle feeder 6 is removed from the pallet table 31 and no current is supplied, the nozzle feeder 6 is prevented from jumping out of the suction nozzle 45.The feeder control portion 67 is disposed at a lower front part of the frame body 61. The feeder control section 67 controls the raising / lowering drive section 63 and the restriction drive section 64, and monitors a state of the lock mechanism 6C. The feeder control portion 67 is communicatively connected to the control device 5 of the component mounter 93 via the connector, and performs control according to a command from the control device 5. The protrusion, the upper positioning pin 69, the lower positioning pin, the connector, and the locking mechanism 6C have the same configuration and function as the corresponding parts of the tape feeder 33. Accordingly, description of these parts will be omitted here. The protrusion, the upper positioning pin 69, the lower positioning pin, the connector, and the lock mechanism 6C are a form of attachment portion that removably attaches the nozzle feeder 6 to the component mounter 93.The replacement position 66 when the nozzle feeder 6 is mounted on the pallet table 31 corresponds to the supply position 36 of the tape feeder 33 mounted on the pallet table 31 The mounting head 43 can move to the replacement position 66 of the nozzle feeder 6 to sequentially perform the automatic replacement of the suction nozzle 45. Accordingly, the replacement position 66 of the nozzle feeder 6 mounted on the pallet table 31 corresponds to the predetermined second replacement position in the apparatus in which the mounting head 43 performs the automatic replacement of the suction nozzle 45.The nozzle feeder 6 mounted on the pallet table 31 lifts the nozzle holding unit 62 to the replacement position when the suction nozzle 45 is automatically replaced. Thus, the nozzle holding unit 62 is raised to a height at which the mounting head 43 is lowered and at which the suction nozzle 45 can be automatically replaced. Further, the nozzle feeder 6 lowers the nozzle holding unit 62 to the standby position and waits for a normal time, not the time for automatically replacing the suction nozzle 45.The above-described nozzle station 48 has the same shape as the nozzle holding unit 62 of the nozzle feeder 6, and also has compatibility. The base 10 is provided with the raising / lowering driving portion 63 and the restriction driving portion 64 for driving the nozzle station 48. Due to sharing of the nozzle station 48 (nozzle holding unit 62), the lift / lower driving portion 63 and the restriction driving portion 64, the number of different types of components is reduced, which is advantageous for manufacturing. Further, the handling method, management, maintenance, etc. of the nozzle station 48 and the nozzle holding unit 62 are standardized, which is more practical.5. Configuration of the printed circuit board product production line 9Next, a configuration of the printed circuit board product production line 9 will be described with reference to FIG. 7. As indicated by the upper left arrow in FIG. 7, an X-axis direction, a Y-axis direction, and a Z-axis direction of the production line 9 are determined according to the component mounter 93. In the production line 9, a plurality of board working machines are arranged side by side in the X-axis direction. Specifically, a solder printer 91, a print tester 92, three component mounters 93, a board view tester (not shown), and a reflow machine (not shown) are arranged in the X-axis direction. The line configuration of the production line 9 may be changed.Each of the board working machines performs predetermined board work on the board. Specifically, the solder printer 91 prints a paste-like solder in a defined pattern shape on the circuit board K. The print checker 92 takes an image and checks the solder printing state of the circuit board K. The three component mounters 93 collect components from the component supply device 3 and mount the components on the solder of the circuit board K. The number of component mounters 93 is not limited to three and can be changed. The board vision tester takes an image of the component mounted on the board K and checks the visual condition. The reflow machine stabilizes the mounting state of the device by heating and cooling the solder.Each of the component mounters 93 includes an in-machine storage area 94 on the lower side of the component supply device 3. the in-machine storage area 94 includes a storage table having the same shape as the pallet table 31. The mounting / removing method in the storage table of the in-machine storage area 94 is the same as the mounting / storage method in the pallet table 31 The in-machine storage area 94 is mainly used for temporarily storing a tape feeder 33 and a nozzle feeder 6 to be used subsequently for replacement and for storing a tape feeder 33 and a nozzle feeder 6 removed from the pallet table 31.The production line 9 is provided with an in-line preservation area 96 and a line management device 97. The intra-line preservation portion 96 is disposed adjacent to the solder printer 91 and at the same height as the component feeding device 3 of the component mounter 93. The in-line storage area 96 has a storage table having the same shape as the pallet table 31. Accordingly, the in-line storage portion 96 can removably store a tape feeder 33 and a nozzle feeder 6 in the storage table. The mounting / removing method in the intra-line storing section 96 is the same as the mounting / removing method in the pallet table 31 The intra-line storing section 96 is mainly used for storing a tape feeder 33 and a nozzle feeder 6, and for transferring the tape feeder 33 and the nozzle feeder 6 to and from the intra-machine storing section 94. The tape feeder 33 and the nozzle feeder 6 stored in the in-line storage area 96 can be directly transported to the pallet table 31 without passing through the in-machine storage area 94. The line management device 97 is disposed adjacent to the intra-line preservation area 96. The line management device 97 is configured using a computing device.Further, the transport device 7 is mounted on the production line 9. The transport device 7 transports a tape feeder 33 and a nozzle feeder 6 from a transport source to a transport destination. As the transport source and the transport destination, the pallet table 31 of each of the component mounters 93, the in-machine storage area 94 of each of the component mounters 93, and the in-line storage area 96 may be selected and set. The transport device 7 includes a device housing 71, a moving mechanism 72, a raising / lowering mechanism 73, an attachment / removal mechanism 74, etc. The device housing 71 is formed by a vertically long housing-shaped member and is open on a side facing the component mounter 93 and the in-line storage region 96.The moving mechanism 72 includes a middle rail 721, a lower rail 722, a middle moving part 723, a lower moving part 724, and a non-contact power receiving part 725. The middle rail 721 and the lower rail 722 are provided in a plurality of board working machines and in the in-line storage region 96. The middle rail 721 and the lower rail 722 are arranged in parallel to each other and vertically separated from each other to form two track parts extending in the X-axis direction. The middle moving part 723 and the lower moving part 724 are provided in the apparatus case 71. The middle moving part 723 movably engages with the middle rail 721 and the lower moving part 724 movably engages with the lower rail 722.The middle moving part 723 and / or the lower moving part 724 includes a driving source for movement. A servo motor, a pulse motor, or the like having good controllability of the stop position can be used as the drive source. The contactless power receiving part 725 is provided between the middle moving part 723 and the lower moving part 724 of the apparatus case 71. The contactless power receiving part 725 contactless receives power from a contactless power transmitting portion (not shown) provided in the board working machine, and supplies the power to the drive sources. In this way, the conveying device 7 moves along a line extension direction (X-axis direction) of the production line 9.The raising / lowering mechanism 73 and the attachment / detachment mechanism 74 are provided in the device housing 71. The raising / lowering mechanism 73 raises and lowers the attachment / detachment mechanism 74 in a range from a height of the in-machine storage region 94 to a height of the component feeding device 3 and the in-line storage region 96.The attachment / removal mechanism 74 performs an attachment / removal operation of the tape feeder 33 and the nozzle feeder 6 on the transport source and the transport target. Specifically, the attachment / detachment mechanism 74 is driven by the movement mechanism 72 and the raising / lowering mechanism 73, and directly faces the transport source. Then, the attachment / detachment mechanism 74 removes the tape feeder 33 and the nozzle feeder 6 from the position directly facing the transport source, and accommodates the tape feeder 33 and the nozzle feeder 6 in the mechanism. Then, the attachment / detachment mechanism 74 is driven by the movement mechanism 72 and the raising / lowering mechanism 73, and directly faces the transport target. Then, the attachment / detachment mechanism 74 attaches the tape feeder 33 and the nozzle feeder 6 that have been accommodated to the position directly facing the transport target. The attachment / detachment mechanism 74 can accommodate a plurality of tape feeders 33 and nozzle feeders 6 in the mechanism, thereby increasing the transport efficiency.The conveying device 7 can be moved along the production line 9 as described above and conveys the suction nozzle 45 by conveying the nozzle feeder 6, The conveying device 7 is used in a replenishment process in which the nozzle feeder 6 is led out, stacked, moved, and mounted on a storage area (hereinafter, "the in-machine storage area 94 and the in-line storage area 96" are referred to as "storage area"). Further, the transfer device 7 is used in a returning process in which the nozzle feeder 6 is removed from the pallet table 31 of the component mounter 93, stacked, moved, and transferred to the storage area. Further, the conveying device 7 is used in a reuse process in which the nozzle feeder 6 is removed from the pallet table 31 of the component mounter 93, stacked, moved, and attached to the pallet table 31 of another component mounter 93.6. Configuration of Component Mounting System 1Next, a configuration of the component mounting system 1 according to the first embodiment will be described. The component mounting system 1 includes a plurality of component mounters 93 configuring a production line 9 of the above-described printed circuit board product, the above-described conveying device 7, and a below-described plan creation section 9P. A configuration for controlling the component mounting system 1 will be described with reference to FIG. 8. The line management device 97 is communicatively connected to the control device 5 of each of the component mounters 93, and is also communicatively connected to another type of board work machine. The line management device 97 manages all the board work in the production line 9.In each of the component mounters 93, the control device 5 sequentially stores and updates management information 9A. The management information 9A includes information on the type and the number of the suction nozzles 45 held by the nozzle feeder 6 positioned in the component supply device 3 and / or the in-machine storage area 94. The management information 9A may include information on the type and number of the suction nozzles 45 attached to the mounting head 43. Further, the management information 9A may include unique information of the tape feeder 33 positioned in the component supply device 3 and the in-machine storage area 94, and information on the type and the remaining number of the components supplied by the tape feeder 33. The control device 5 controls the mounting work by appropriately referring to the management information 9A and also based on the mounting work data 9C (described later).The line management device 97 sequentially stores and updates management information 9B in an associated memory 971. The management information 9B includes information on the type and the number of suction nozzles 45 held by the nozzle feeder 6 positioned at least in the intra-line preservation area 96. Further, the management information 9B may include unique information of the tape feeder 33 positioned in the in-line storage area 96, and information on the type and the remaining number of the devices supplied by the tape feeder 33. Further, the management information 9B may include information on the groove train history of the suction nozzle 45 and the tape feeder 33. Examples of the information on the usage history are the elapsed operation time, the number of operations, an operation failure status, and a maintenance status.The line management device 97 stores mounting work data 9C in the memory 971. The assembly work data 9C is created for each type of circuit board (circuit board K) and for each circuit board work machine. The line management device 97 sends mounting work data 9C of a printed board product to be next generated to each of the plurality of printed board work machines upon a facility change for changing the type of the printed board. Generally, the mounting work data 9C received by the component mounter 93 includes design information on the type of the circuit board K used as a raw material, the type of the component, a mounting coordinate position, etc. In the first embodiment, the mounting work data 9C includes facility information indicating at least the type of the tape feeder 33 or the suction nozzle 45 to be used for each type of circuit board product.Further, the line management device 97 stores maintenance information 9E in the memory 971. The maintenance information 9E is information indicating that a recommended time for maintenance (maintenance time) of the suction nozzle 45 has come or that the maintenance time approaches. The line management device 97 compares the use history of the suction nozzle 45 in the management information 9B with the predetermined number of operations or a predetermined operation time for setting a periodic maintenance time. The line management device 97 may set a temporary maintenance time as the number or rate of operation errors of the suction nozzle 45 increases. The maintenance information 9E is sequentially updated in accordance with the progress of an operation status of the suction nozzle 45.The line management device 97 is communicatively connected to the transport device 7 using a wireless communication section 972 and controls the operation of the transport device 7. The production management device 98 sequentially stores and updates a production plan 9D in the associated memory 981. The production plan 9D contains at least information indicating the type and production order of the printed circuit board product to be produced. The production plan 9D may also include the production amount and a production deadline for the printed circuit board product, information indicating a acquisition time of the printed circuit board K or the component serving as a raw material, an operation plan of the production line 9, or a service plan for a worker.The line management device 97 includes a plan creation section 9P and a transport control section 9M configured using software. The plan creation section 9P acquires a production plan 9D and facility information of mounting work data 9C or maintenance information 9E, and creates a transport plan of the suction nozzle 45 using the transport device 7 based thereon. The plan creation section 9P preferably acquires management information ( 9A, 9B) in addition to the production plan 9D and facility information (assembly work data 9C) or maintenance information 9E, and creates the transport plan based thereon.When the plan creation section 9P creates the transport plan based on the facility information (work plan data 9C), the plan creation section 9P first recognizes the content and a facility change execution time for changing the type of the printed circuit board product according to the production plan 9D. Then, the plan creation section 9P calculates, based on the facility information (mounting work data 9C) before and after the facility change, the excess or deficiency number of suction nozzles 45 in facility change for each type of suction nozzle 45. Then, the plan creation section 9P creates the transport plan including the reuse process for transporting the suction nozzle 45 from a first component mounter 93 for which excess of the suction nozzles 45 is calculated to a second component mounter 93 for which deficiency of the same type of suction nozzles 45 is calculated.In addition, the plan creation section 9P sets, as a part of the transport plan, a returning process for transporting a suction nozzle 45 calculated as excessive in the first component mounter 93 to the storage area, as necessary. Further, the plan creation section 9P sets, as a part of the transport plan, a replenishment process for transporting a suction nozzle calculated as missing in the second component mounter 93 from the storage area, as necessary. Then, the plan creation section 9P prioritizes the reuse process over the returning process and the replenishing process. This makes it possible to minimize the number of suction nozzles 45 required when the equipment in the production line 9 is changed.The plan creation section 9P may create the transport plan for maintenance based on sequentially updated maintenance information 9E. The plan creation section 9P first recognizes a suction nozzle 45 for which the maintenance time has come or approaches and the component mounter 93 using the suction nozzle 45. Then, the plan creation section 9P creates the maintenance plan for maintenance including the replenishment process for conveying a suction nozzle 45 for replacement from the storage area to the component mounter 93 and the return process for conveying the suction nozzle 45 to the storage area. The transport plan for maintenance is executed in conjunction with the next facility change or immediately after plan creation. In particular, when the number or rate of operation errors of the suction nozzle 45 increases and the temporary maintenance time is set, the transport plan for maintenance is preferably executed immediately.The transport control section 9M controls the transport device 7 based on the transport plan created by the plan creation section 9P. Specifically, the conveying device 7 conveys the nozzle feeder 6 holding the suction nozzle 45 to be used subsequently, and mounts the nozzle feeder 6 on the pallet table 31 (replenishment process). In this case, each of the component mounters 93 automatically exchanges the suction nozzle 45 held by the mounting head 43 and not to be used or the suction nozzle 45 whose maintenance time has come, with the suction nozzle 45 held by the nozzle feeder 6 and to be used subsequently. The conveying device 7 leads out the nozzle feeder 6 holding the suction nozzle 45 not to be used, conveys the nozzle feeder 6 to another component mounter 93 (recycling process), or conveys the nozzle feeder 6 to the storage area (recycling process). Further, the conveying device 7 conveys the suction nozzle 45 for which the maintenance time has come to the preservation area (returning process).The transport control portion 9M controls the transport device 7 based on the transport plan to cause the transport device 7 to transport the suction nozzle 45, so that a limited number of suction nozzles 45 can be transported in a scheduled manner and the suction nozzles 45 can be operated efficiently. In addition, the conveyance control portion 9M can convey the suction nozzle 45 for which the maintenance time has come in time, thereby promoting efficient operation and assembly reliability. Functions of the plan creation section 9P and the transport control section 9M will be described in detail in the following description of the operation with reference to specific examples.7. Operation of Component Mounting System 1Hereinafter, the operation based on the device information (mounting work data 9C) of the component mounting system 1 will be described with reference to FIGS. 9 to 12 by way of specific examples. In FIGS. 10 to 12, a description of zero states is omitted because they are not important. Specifically, in the production line 9, ten component mounters 93 are arranged side by side, that is, in other words, the production line 9 is configured with a first mounter M 1 arranged at the most upstream to a tenth mounter M 1 arranged at the most downstream, which are arranged side by side, respectively. Each of the first mounter M 1 to the tenth mounter M 10 uses 20 suction nozzles 45 in an automatically exchangeable manner. There are five types of suction nozzles 45, namely, a first nozzle N 1 to a fifth nozzle N 5 in an ascending order of the size of the component serving as a pickup target. Here, a maximum number of the suction nozzles 45 held by the nozzle feeder 6 is assumed to be 20. In addition, it is assumed that the nozzle station 48 is not used because the facility changing work is automated upon a change in the type of the printed circuit board product.Further, it is assumed that a production order continuous to a lower surface or upper surface of the circuit board K is set. The lower surface and the upper surface are also treated as different types of circuit boards for the same circuit board K. Of course, various types of circuit boards K are usually manufactured in a continuous production order. The number of mounting points of the small components mounted on the lower surface is relatively large. Further, the number of mounting points of the medium and large components on the upper surface is relatively large as compared with the lower surface. Therefore, the lower surface is first formed and the upper surface is later formed. In addition, in the manufacturing of the lower surface and the upper surface, the small component is preferably assigned to the component mounter 93 located upstream, and the large component is assigned to the component mounter 93 located downstream. By setting such a mounting order, an influence on the mounting work of components to be mounted thereafter is avoided.The operation flow shown in FIG. 9 is advanced mainly by the control of the line management device 97. In step S 1 of FIG. 9, the plan creation section 9P of the line management device 97 acquires a production plan 9D from the production management device 98. The plan creation section 9P ends the operation up to step S 4 before the production of the lower surface is completed and the facility change to the upper surface is required. The plan creation section 9P acquires the setting information of the lower surface and the upper surface based on the production plan 9D.As shown in FIG. 10, the device information indicates the number of the first to fifth nozzles N 1 to N 5 used by the first to tenth mounters M 1 to M 10, respectively. That is, according to the lower surface setup information, the first mounter M 1, the second mounter M 2, and the third mounter M 3 each use 20 first nozzles N 1. The fourth assembler M 4 uses 12 first nozzles N 1 and eight second nozzles N 2. The fifth mount M 5 and the sixth mount M 6 each use 20 second nozzles N 2. The seventh mount M 7 uses ten second nozzles N 2 and ten third nozzles N 3. The eighth mounter M 8, the ninth mounter M 9, and the tenth mounter M 10 each use 20 third nozzles N 3.Further, according to the upper surface setup information, the first mounter M 1 and the second mounter M 2 each use 20 first nozzles N 1. The third mounter M 3 uses 20 second nozzles N 2. The fourth assembler M 4 uses ten second nozzles N 2 and ten third nozzles N 3. The fifth mounter M 5, the sixth mounter M 6, and the seventh mounter M 7 each use 20 third nozzles N 3. The eighth assembler M 8 uses 12 third nozzles N 3 and eight fourth nozzles N 4. The ninth assembler M 9 uses four third nozzles N 3 and 16 fourth nozzles N 4. The tenth mounter M 10 uses 16 fourth nozzles N 4 and four fifth nozzles N 5.The plan creation section 9P acquires management information 9A from each of the component mounters 93, and confirms the management information 9B. When the lower surface is manufactured, the plan creation section 9P confirms that the type and the number of the suction nozzles 45 attached to the mounting head 43 correspond to the facility information based on the management information 9A. In the case of non-matching, the plan creation section 9P prioritizes the management information 9A and recognizes the type and the number of suction nozzles 45 actually attached to the mounting head 43.In the next step S 2, the plan creation section 9P calculates the excess or deficiency of each of the first to fifth nozzles N 1 to N 5 upon a device change in the first to tenth mounters M 1 to M 10. The calculation result is given under "surplus or shortage for each machine" in FIG. 11, where a "+" represents surplus and a "-" represents shortage.Thus, neither an excess nor a deficiency occurs in the first mounter M 1 and the second mounter M 2. In the third mounter M 3, there are an excess of 20 first nozzles N 1 and a deficiency of 20 second nozzles N 2. In the fourth assembler M 4, there are an excess of 12 first nozzles N 1, a deficiency of 2 second nozzles N 2, and a deficiency of 10 third nozzles N 3. In the fifth mount M 5, there are an excess of 20 second nozzles N 2 and a deficiency of 20 third nozzles N 3. In the sixth mount M 6, there is an excess of 20 second nozzles N 2 and a deficiency of 20 third nozzles N 3. In the seventh mounter M 7, there are an excess of 10 second nozzles N 2 and a deficiency of 10 third nozzles N 3. In the eighth mount M 8, there is an excess of 8 third nozzles N 3 and a deficiency of 8 fourth nozzles N 4. In the ninth mount M 9, there is an excess of 16 third nozzles N 3 and a deficiency of 16 fourth nozzles N 4. In the tenth mount M 10, there are an excess of 20 third nozzles N 3, a deficiency of 16 fourth nozzles N 4, and a deficiency of 4 fifth nozzles N 5.In the next step S 3, the plan creation section 9P creates a rough transport plan for the entire production line 9. Specifically, the plan creation section 9P first aggregates the surplus and shortage for each of the first to fifth nozzles N 1 to N 5 in the first to tenth mounters M 1 to M 10, and calculates a surplus A 1 and a shortage A 2 in the entire line. As indicated in the "whole line" field in FIG. 11, the excess A 1 of the first nozzle N 1 is 32 and the deficiency A 2 of the first nozzle N 1 is zero. For the second nozzle N 2, the surplus A 1 is 50 and the shortage A 2 is 22, for the third nozzle N 3, the surplus A 1 is 44 and the shortage A 2 is 60, for the fourth nozzle N 4, the surplus A 1 is zero and the shortage A 2 is 40, for the fifth nozzle N 5, the surplus A 1 is zero and the shortage A 2 is 4.Here, in each of the first to fifth nozzles N 1 to N 5, the smaller value of the surplus A 1 and the shortage A 2 indicates the number of times the reuse process is available. Accordingly, for each of the first to fifth nozzles N 1 to N 5, the plan creation section 9P sets the smaller value of the surplus A 1 and the shortage A 2 to the reuse count A 3. The reuse count A 3 of the second nozzle N 2 is 22, and the reuse count A 3 of the third nozzle N 3 is 44. Accordingly, in contrast to a lack of 126 suction nozzles 45 in the entire line, a part of the transport plan is determined for reuse of 66 (=22+44) suction nozzles 45.Then, the plan creation section 9P calculates a return number A 4 by subtracting the reuse number A 3 from the surplus A 1 for the first nozzle N 1 and the second nozzle N 2 whose surplus A 1 is larger than the shortage A 2 as targets. The return number A 4 of the first nozzle N 1 is 32 and the return number A 4 of the second nozzle N 2 is 28. Accordingly, a part of the transport plan for returning 60 (=32 + 28) suction nozzles 45 from the component mounter 93 to the storage area in the entire line is determined.Further, the plan creation section 9P calculates a replenishment number A 5 by subtracting the reuse number A 3 from the shortage A 2 for the third to fifth nozzles N 3 to N 5 whose surplus A 1 is smaller than the shortage A 2 as a target. The replenishment number A5 of the third nozzle N3 is 16, the replenishment number A5 of the fourth nozzle N4 is 40, and the replenishment number A5 of the fifth nozzle N5 is 4. Accordingly, a part of the transport plan in which 60 (=16+40+4) suction nozzles 45 are supplied from the storage area to the component mounter 93 in the entire line is determined. That is, in contrast to the lack of 126 suction nozzles 45 in the entire line, the number of the suction nozzles 45 to be newly prepared is 60, which is less than half.In this way, the rough transport plan is created, and the number of suction nozzles 45 are defined as targets of the recycling process, the returning process, and the replenishing process in the entire production line 9. When the suction nozzle 45 for which the maintenance time has come is transported upon facility change, the plan creation section 9P performs the returning process without performing the recycling process. In addition, the plan creation section 9P creates a transport plan for supplying missing suction nozzles 45 by another recycling process or replenishment process.The rough transport plan does not define a specific transport method for the nozzle feeder 6. in step S 4, the plan creation section 9P creates a detailed transport plan for transporting the suction nozzle 45 (first to fifth nozzles N 1 to N 5) using the nozzle feeder 6. The detailed transport plan indicates a plurality of transport positions to which the first to fourth feeders move, a holding status of the suction nozzle 45 at each transport position, or the content of an exchange operation. A numerical value in the exchanging operation indicated by "+" indicates the number of suction nozzles 45 to be returned from the mounting head 43 to the nozzle feeder 6. A numerical value indicated by "-" in parentheses indicates the number of suction nozzles 45 to be supplied from the nozzle feeder 6 to the mounting head 43.The detailed transport plan is created based on the following creation policies (1) to (4).(1) If possible, the nozzle feeder 6 is continuously used in a plurality of reuse processes.(2) If possible, the nozzle feeder 6 used in the recycling process is also used in the refilling process.(3) If possible, the nozzle feeder 6 used in the recycling process is also used in the recycling process.(4) If necessary due to the above-mentioned items (1) to (3), the nozzle guide 6 used also in the refilling process and the returning process is used.Other creation policies may also be used. For example, a third transport target shown in FIG. 12 using a larger number of nozzle feeders 6 may be omitted. Further, the number of uses of the nozzle feeders 6 can be reduced by increasing the number of suction nozzles 45 held by the nozzle feeder 6 to more than 20, and thereby increasing the number of transport positions to which a single nozzle feeder 6 moves.In the detailed transport plan shown in FIG. 12, the field "Before Transport" indicates the contents of a setup work (a) to (d) described below in which the suction nozzle 45 to be supplied is held by the nozzle feeder 6. (a) In the first feeder F 1, 16 fourth nozzles N 4 and four fifth nozzles N 5 are held. (b) In the second feeder F 2, four third nozzles N 3 and 16 fourth nozzles are held. (c) In the third feeder F 3, two third nozzles N 3 and eight fourth nozzles are held. (d) In the fourth feeder F 4, ten third nozzles N 3 are held.In step S 5, the transport control section 9M prompts the worker to perform the setup work of (a) to (d) before executing the detailed transport plan. The worker who has received the request performs the setup work of the first to fourth feeders F 1 to F 4 and sets them in the storage area. The transport control section 9M confirms that the setup work of the first to fourth feeders F 1 to F 4 has been finished by referring to the management information (9A, 9B).In the next step S 6, when the time of facility change comes from the lower surface to the upper surface, the transport control section 9M controls the transport device 7 based on the detailed transport plan shown in FIG. 12. As a result, third to tenth mounters M 3 to M 10 can attach the suction nozzle 45 to be used for the upper surface to the mounting head 43 by automatic replacement and can prepare the mounting work on the upper surface. The first mounter M 1 and the second mounter M 2 do not require automatic replacement of the suction nozzle 45.The conveying device 7 conveys not only the nozzle feeder 6 but also the tape feeder 33 upon facility change. The conveying device 7 performs the following procedures (A) to (C) when the nozzle feeder 6 is attached to the pallet table 31 of the component mounter 93. (A) The nozzle feeder 6 is attached to an empty slot 32. (B) When there is no empty slot 32, the nozzle feeder 6 is attached to a temporary empty slot 32 due to the replacement of the tape feeder 33. (C) When there is no empty slot 32 and the tape feeder 33 is not replaced, one of the tape feeders 33 is temporarily removed, the nozzle feeder 6 is attached, and the tape feeder 33 is re-attached after the nozzle feeder 6 is removed.In the detailed transport plan shown in FIG. 12, the fields for the first to third transport targets indicate the order of the transport positions to which the nozzle feeder 6 moves, and the field "after transport" indicates that the nozzle feeder 6 has been returned to the storage area. The first feeder F 1 for which the setup work has been completed is transported from the storage area to the tenth stocker M 10 as the first transport destination. The first feeder F 1 feeds 16 fourth nozzles N 4 and four fifth nozzles N 5 to the mounting head 43 in the tenth stocker M 10, and receives 20 third nozzles N 3 from the mounting head 43. the first feeder F 1 is further transported to the fifth stocker M 5 as the second transport destination, 20 third nozzles N 3 are fed to the mounting head 43, and 20 second nozzles N 2 are received from the mounting head 43. The first feeder F 1 is further transported to the third mounter M 3 as the third transport target 20, 20 second nozzles N 2 are supplied to the mounting head 43, and 20 first nozzles N 1 are received from the mounting head 43. The first feeder F 1 is finally returned to the storage area and stored in a state where 20 first nozzles N 1 are held.The second feeder F 2 is transported from the storage area to the ninth stocker M 9, 16 fourth nozzles N 4 are supplied to the stocker head 43, and 16 third nozzles N 3 are received from the stocker head 43. The total number of the third nozzles N3 is 20 and is obtained by adding 16 received nozzles to the four original nozzles. The second feeder F2 is further transported to the sixth stocker M6, 20 third nozzles N3 are fed to the stocker head 43, and 20 second nozzles N2 are received from the stocker head 43. The second feeder F 2 is transported to the fourth assembler M 4, two second nozzles N 2 are supplied to the assembly head 43, and two first nozzles N 1 are received from the assembly head 43. The second feeder F 2 is finally returned to the storage area and stored in a state where the two first nozzles N 1 and 18 second nozzles N 2 are held.The third feeder F 3 is transported from the storage area to the eighth stocker M 3, eight fourth nozzles N 4 are supplied to the stocker head 43, and eight third nozzles N 3 are received from the stocker head 43. The total number of the third nozzles N3 is ten and is obtained by adding eight nozzles to the original two nozzles. The third feeder F 3 is further transported to the seventh stocker M 7, ten third nozzles N 3 are supplied to the stocker head 43, and ten second nozzles N 2 are received from the stocker head 43. The second feeder F 2 is finally supplied to the storage area and stored in a state where ten second nozzles N 2 are held.The fourth feeder F 4 is transported from the storage area to the fourth assembler M 4, ten third nozzles N 3 are supplied to the assembly head 43, and ten first nozzles N 1 are received from the assembly head 43. The fourth feeder F 4 is returned to the storage area without being transported to another stocker and stored in a state where ten first nozzles N 1 are held.As described above, the first feeder F 1 and the second feeder F 2 are used in the replenishment process, the two reuse processes, and the return process. The third feeder F 3 is used in the replenishment process, the reuse process, and the return process. The fourth feeder F 4 is used in the replenishment process and the return process, and is not used in the reuse process. As described above, the conveying device 7 conveys suction nozzles 45 (first to fifth nozzles N 1 to N 5) to third to tenth mounters M 3 to M 10, and each of the mounting heads 43 performs the automatic replacement of the suction nozzles 45 (first to fifth nozzles N 1 to N 5) so that the replacement of the suction nozzles 45 is fully automatically performed at the facility change.The plan creation section 9P may create a transport plan including the returning process and the replenishing process but not the recycling process. For example, the plan creation section 9P creates a transport plan that causes the nozzle feeder 6 assigned to each of the component mounters 93 to perform the replenishment process and the return process. According to the transport plan, the first feeder F 1 assigned to the third stocker M 3 is transported to the third stocker M 3 in a state where 20 second nozzles N 2 are held. Then, the first feeder F 1 feeds 20 second nozzles N 2 to the mounting head 43 in the third stocker M 3 and receives 20 first nozzles N 1 from the mounting head 43.The second feeder F 2 assigned to the fourth stocker M 4 is transported to the fourth stocker M 4 in a state where two second nozzles N 2 and ten third nozzles N 3 are held. The second feeder F 2 feeds two second nozzles N 2 and ten third nozzles N 3 to the mounting head 43 in the fourth stocker M 4 and receives twelve first nozzles N 1 from the mounting head 43. Also in the fifth to tenth mounters M 5 to M 10, the nozzle feeder 6 assigned to each mounter performs the replenishment process and the return process. Since 126 suction nozzles 45 corresponding to the shortage A2 of all nozzles of the entire line are prepared beforehand, replacement of the suction nozzles 45 is fully automatically performed upon facility change.And when a transportation plan for maintenance is created based on maintenance information 9E, the plan creation section 9P directly creates a detailed transportation plan. That is, the plan creation section 9P creates a transport plan for maintenance to transport the nozzle feeder 6 holding the suction nozzle 45 to be replenished to the component mounter 93 using a suction nozzle 45 whose maintenance time has come or approaches. As described above, the transport plan for maintenance associated with the facility change is executed or executed immediately and without waiting for the time of the facility change.When the transport plan for maintenance is immediately executed, the transport control section 9M prompts the worker during the creation of the plan for performing setup work for holding the suction nozzle 45 to be replenished in the nozzle feeder 6. When the nozzle feeder 6 is set and set in the storage area, the transport control section 9M controls the transport device 7 and executes the transport plan for maintenance. Therefore, the nozzle feeder 6 is attached to the pallet table 31 of the component mounter 93 The component mounter 93 immediately performs the automatic replacement of the suction nozzle 45 or measures the time for performing the automatic replacement. For example, the component mounter 93 may perform the automatic replacement of the suction nozzle 45 using a time period in which the transportation of the circuit board K is delayed and the mounting work is suspended.In the component mounting system 1 according to the first embodiment, the plan creation section 9P creates the transport plan of the suction nozzles 45 (first to fifth nozzles N 1 to N 5) based on the production plan 9D of the printed circuit board product and the facility information (mounting work data 9C) indicating the type and the number of suction nozzles 45 (first to fifth nozzles N 1 to N 5) used by the plurality of component mounters 93 (first to tenth mounters M 1 to M 10). Accordingly, the component mounting system 1 can establish a transport plan in which suction nozzles 45 (first to fifth nozzles N 1 to N 5) of the type and the number required in the production line 9 are transported and efficiently operated in a scheduled manner without an excess or shortage. Further, the nozzle feeder 6 may be applied to component mounters 93 (first to tenth mounters M 1 to M 10) in the component mounting system 1, and may interchangeably feed suction nozzles 45 (first to fifth nozzles N 1 to N 5).8. Configuration of Nozzle Feeder 6F According to Application ExampleNext, a nozzle feeder 6F according to an application example will be described with reference to FIG. 13. The nozzle feeder 6F has substantially the same outer shape as the nozzle feeder 6 described in the first embodiment except for the width dimension in the X-axis direction. The nozzle feeder 6F has a larger width dimension than the nozzle feeder 6, and is removably attached to a plurality of slits 32 of the pallet table 31. The nozzle feeder 6F is stored in the storage area and transported by the transport device 7.As shown in FIG. 13, the nozzle feeder 6F is configured by mounting various members on a frame body 6F including a side plate. The nozzle feeder 6F includes the frame body 6G, five nozzle holding units 62, a take-up magazine 6H, a drawing mechanism 6L, and a raising / lowering mechanism 6M. Each of the five nozzle holding units 62 has the same configuration as the base plate 622 and the cover plate 625 of the above-described embodiment, but the number of the held suction nozzles 45 may be different from that of the first embodiment.The storage magazine 6H is provided on the front side (left side in FIG. 13 ) in the frame body 6G. The receiving magazine 6H includes five pairs of rails 6J vertically aligned. The pairs of rails 6J extend in a front-rear direction and are separated from each other in a horizontal plane. Each pair of rails 6J receives the holding plate 6K in which the nozzle holding unit 62 is removably held such that it can be pulled. The holding plate 6K includes a restriction driving portion 64 that pushes the cover plate 625 of the nozzle holding unit 62, and no raising / lowering driving portion 63 is provided.The drawing mechanism 6L draws a selected nozzle holding unit 62 together with the holding plate 6K from the take-up magazine 6H horizontally rearward (rightward in FIG. 13 ). The pulling mechanism 6L can be configured by combining, for example, a conveyor belt that rotates along a pull rail, a hook provided on the conveyor belt and configured to lock the holding plate 6K, and a motor configured to rotate the conveyor belt.The raising / lowering mechanism 6M collectively raises and lowers the drawing mechanism 6L, the drawn nozzle holding unit 62, and the holding plate 6K. The raising / lowering mechanism 6M raises the nozzle holding unit 62 to the height of the replacement position 66 when the suction nozzle 45 is automatically replaced. Further, the raising / lowering mechanism 6M lowers the nozzle holding unit 62 to avoid interference with the operations of the other links at a normal time, not during the automatic replacement of the suction nozzle 45. In FIG. 13, the second nozzle holding unit 62 provided from below is pulled out by the pulling mechanism 6L and raised to the replacement position 66 by the raising / lowering mechanism 6M. When the automatic replacement of the suction nozzle 45 is finished at the replacement position 66, the nozzle holding unit 62 and the holding plate 6K are returned to the pickup magazine 6H.The nozzle feeder 6F includes a protrusion having the same shape as the tape feeder 33 and the nozzle feeder 6, an upper positioning pin 69, a lower positioning pin, a connector, and a lock mechanism 6C. Accordingly, description of these parts will be omitted here. The nozzle feeder 6F according to the application example can removably hold and feed a larger number of suction nozzles 45 than the nozzle feeder 6. Further, the nozzle feeder 6F is not of the removable type but of the permanent type, and may be permanently installed in the component mounter 93 instead of the nozzle station 48, for example. At this time, the nozzle feeder 6F can feed a larger number of suction nozzles 45 than the nozzle station 48.9. Component Mounting System 1A According to Second EmbodimentNext, a component mounting system 1A according to a second embodiment will be described with reference to FIG. 14 mainly in terms of differences from the first embodiment. As shown in FIG. 14, in the second embodiment, a sensorless transport vehicle 8 is added to the configuration of the first embodiment. The rodless transport vehicle 8 functions as a part of the transport device 7 that transports the nozzle feeder (6, 6F). Specifically, the rodless transport vehicle 8 moves between an instrument storage 82 and the transport device 7 to transport the nozzle feeder (6, 6F). Further, the rodless transport vehicle 8 moves between the external work area 83 and the transport device 7 for transporting the nozzle feeder (6, 6F).The rodless transport vehicle 8 also referred to as FTF for short moves along the moving path 81. the moving path 81 is not limited to a physical device such as a moving rail, and may be a virtual path provided on a floor surface. The rodless transport vehicle 8 is loaded with a transport magazine 84 in which a plurality of tape feeders 33 and the plurality of nozzle feeders (6, 6F) are accommodated. For example, the transport magazine 84 may have a slot having the same shape as the slot 32 of the pallet table 31. The rodless transport vehicle 8 can move in a state in which a plurality of tape feeders 33 and the plurality of nozzle feeders ( 6, 6F) are directly stacked.The instrument storage 82 loads, stores, and unloads instruments such as the tape feeder 33 and the nozzle feeder (6, 6F). The instrument stocker 82 has an automatic loading / unloading function for automatically loading / unloading the tape feeder 33 and the nozzle feeder (6, 6F) when the rodless transport vehicle 8 arrives at one of three loading / unloading ports 821. The instrument support 82 is a form of storage area that is disposed separately from the production line 9 and stores the suction nozzle 45. The plan creation section 9P may create a transport plan in which the transport source and / or the transport destination of the nozzle feeder ( 6, 6F) are set in the instrument storage 82.The external work area 83 is an area that is disposed separately from the production line 9 and in which the worker performs various setup work. In the external work area 83, a nozzle maintenance device 831 (assembly tool maintenance device), a nozzle replacement device 832, and a placement changing device 833 are installed. Further, a feeder setup device for automatically replacing the tape feeder 33 may be installed in the external work area 83. The nozzle maintenance device 831 receives the nozzle station 48 and the nozzle holding unit 62, and automatically performs maintenance of the held suction nozzle 45. The nozzle exchanging device 832 receives the nozzle station 48 and the nozzle holding unit 62, and automatically performs exchange of the suction nozzle 45. The applicant of the present application describes an exemplary technique of the nozzle maintenance device 831 in Patent Literature 4.The nozzle maintenance device 831 and the nozzle replacement device 832 may be configured to receive the entire nozzle feeder ( 6, 6F). The maintenance and replacement of the suction nozzle 45 can be performed by the worker in the external work area 83. The execution history of waiting and replacing the suction nozzle 45 is sent via a communication system (not shown) and taken into account in updating the management information 9B. The plan creation section 9P may create a transport plan in which the transport source and / or the transport destination of the nozzle feeder ( 6, 6F) are set in the external work area 83.The placement changing device 833 is disposed close to the movement path 81. The placement changing device 833 automatically performs a placement change of instruments such as the transport magazine 84 between the automated guided vehicle 8 and the external work area 83. In this way, the nozzle feeder ( 6, 6F) configured by the nozzle maintenance device 831, the nozzle replacement device 832, or the worker is automatically transported from the external work area 83 to the transport device 7. Further, the nozzle feeder ( 6, 6F) fed back from the component mounter 93 to the conveying device 7 by the returning process is automatically conveyed to the external work area 83. The placement changing device 833 may be omitted, in which case the worker may perform placement changing of instruments such as the transport magazine 84.In the component mounting system 1A according to the second embodiment, the nozzle feeder ( 6, 6F) is transported by the rodless transport vehicle 8 between the instrument storage 82, the external work area 83, and the transport device 7, so that a considerably larger number of suction nozzles 45 than the first embodiment can be supplied. Further, since the rodless transport vehicle 8 transports the nozzle feeder (6, 6F), labor can be reduced and further automation can be realized.10. Application and Modification of EmbodimentNote that the conveying device 7 can be automatically operated at a time other than the time of facility change, for example, a tape feeder 33 in which the component runs out during production can be automatically replaced. Further, the plan creation section 9P can omit the rough transport plan and directly create the detailed transport plan. Further, the plan creation section 9P and the transport control section 9M may be provided in a computer device other than the line management device 97. The management information (9A, 9B) may be stored in a memory other than described for the first embodiment.Further, in the first embodiment, the plan creation section 9P plans only one production line 9, but the present invention is not limited thereto. For example, when the facility change times of two production lines 9 overlap each other, the plan creation section 9P may provide, in the transport plan, an inter-line reuse process for transporting suction nozzles 45 of a component mounter 93 of a first production line 9 to a component mounter 93 of a second production line 9. In the second embodiment, the rodless transport vehicle 8 can move to transport devices 7 provided in two production lines 9 to transport the nozzle feeder (6, 6F). Further, the nozzle maintenance device 831 and the nozzle replacement device 832 may be installed in a moving range of the conveying device 7 in the production line 9, and may transfer the nozzle feeder ( 6, 6F) to and from the conveying device 7. Various other applications and modifications are also possible in the first and second embodiments.List of Reference Numerals1, 1A: component mounting system; 2: printed circuit board conveying device; 3: component feeding device; 31: pallet table; 32: slot; 33: tape feeder; 38: protrusion; 4: component transfer device; 43: mounting head; 45: suction nozzle; 48: nozzle station; 5: control device; 6, 6F: nozzle feeder; 62: nozzle holding unit; 622: base plate; 623: stepped receiving hole; 625: cover plate; 626: restriction hole; 63: raising / lowering driving portion; 64: restriction driving portion; 66: replacement position; 6H: receiving magazine; 6L: drawing mechanism; 6M: raising / lowering mechanism; 7: conveying device; 74: mounting / removing mechanism; 8: rodless conveying vehicle; 82: instrument stocker; 83: external work area; 831: nozzle maintenance device; 832: nozzle replacement device; 9: production line; 93: component mounter; 94: in-machine preservation area; 96: in-line preservation area; 97: line management device; 9A: management information; 9B: management information; 9C: mounting work data; 9D: production plan; 9E: maintenance information; 9P: plan creation section; 9M: transportation control section; M1 to M10: first to tenth mounters; N1 to N5: first to fifth nozzles; F1 to F4: first to fourth feeders; A1: surplus; A2: shortage; A3: reuse count; A4: Recycle Number; A5: Makeup Number.References included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedJP-A-2000-91795

[0004] JP-A-2020-74447

[0004]

Claims

A component mounting system comprising: a plurality of component mounters each configured to hold component mounting tools used for mounting a component on a circuit board at a predetermined replacement position in the component mounter so that they can be replaced automatically, wherein the component mounters are arranged side by side to configure a printed circuit board product production line; a conveying device configured to convey the component mounting tools between a storage area configured to store the component mounting tools either outside the component mounter or inside the component mounter except for the replacement position, and the replacement position of the component mounter, and between the replacement positions of the plurality of component mounters; and a plan creation section, the device is configured to create a transport plan for the component mounting tools using the transport device based on a production plan indicating a type and a production order of the circuit board and facility information indicating the types and numbers of the component mounting tools used by each of the plurality of component mounters for each type of the circuit board product or maintenance information indicating the maintenance times of the component mounting tools.The component mounting system according to claim 1, wherein the plan creation section is configured to create the transport plan based on the production plan, the facility information or maintenance information, and management information indicating the types and the numbers of the component mounting tools arranged in the storage area and at the replacement position of each of the plurality of component mounters.The component mounting system according to claim 1 or 2, wherein the plan creation section is configured to calculate an excess or deficiency of the component mounting tools used by each of the plurality of component mounters for each type of the component mounting tools based on the facility information when the type of the printed circuit board product is changed according to the production plan, and create the transport plan including a reuse process for transporting the component mounting tools from a first component mounter for which an excess of the component mounting tools is calculated to a second component mounter for which a deficiency of the same type of the component mounting tools is calculated.The component mounting system according to claim 3, wherein the plan creation section is configured to prioritize the reuse process over a returning process of transporting the component mounting tools for which an excess is calculated in the first component mounter to the storage area and over a refilling process of transporting the component mounting tools for which a deficiency is calculated in the second component mounter from the storage area.The component mounting system according to claim 1 or 2, wherein the plan creation section is configured to calculate an excess or deficiency of the component mounting tools used by each of the plurality of component mounters for each type of the component mounting tools based on the facility information when the type of the printed circuit board product is changed according to the production plan, and create the transport plan including a returning process of transporting the component mounting tools of a type for which an excess is calculated in a first component mounter from the first component mounter to the preservation area and a refilling process of transporting the component mounting tools of a type for which a deficiency is calculated in a second component mounter from the preservation area to the second component mounter.The component mounting system according to claim 1 or 2, wherein the conveying device is configured to convey a mounting tool feeder to convey the component mounting tools, and wherein the mounting tool feeder comprises a mounting tool holding unit configured to removably hold component mounting tools and is removably attached such that the mounting tool holding unit is disposed at the replacement position of the component assembler.The component mounting system of claim 6, wherein the mounting tool feeder has attachment compatibility with a component feeder removably attached to the component assembler and configured to feed the component.The component mounting system according to claim 6, wherein the mounting tool holding unit includes a receiving member having a plurality of receiving holes disposed in a plane and configured to receive the component mounting tools, and a restricting member configured to prevent the component mounting tools received in the receiving holes from jumping out at a time other than the time of automatic replacement.The component mounting system of claim 8, wherein the component assembler comprises an assembly tool station comprising the receiving member and the constraining member and configured to removably hold the component assembly tools, wherein the assembly tool station is disposed at a first replacement position, and wherein the assembly tool feeder is removably mounted such that the assembly tool station is disposed at a second replacement position.The component mounting system according to claim 6, wherein the mounting tool feeder comprises: a receiving magazine configured to receive a plurality of mounting tool holding units; and a replacement mechanism configured to selectively guide the mounting tool holding unit out of the receiving magazine and to arrange the mounting tool holding unit at the replacement position.The component mounting system according to claim 10, wherein the receiving magazine is configured to receive the plurality of mounting tool holding units side by side in a vertical direction, and wherein the exchanging mechanism comprises: a drawing mechanism configured to selectively draw the mounting tool holding unit from the receiving magazine in a horizontal direction, and a raising / lowering mechanism configured to raise and lower the drawn mounting tool holding unit to the height of the exchanging position.The component mounting system according to claim 6, wherein the storage area is disposed in the component mounter except for the replacement position or in a line of the production line, and wherein the transport device is configured to move along the production line, to guide the mounting tool feeder out of the storage area, and to move the mounting tool feeder, and to mount the mounting tool feeder to the component mounter.The component mounting system of claim 6, wherein the storage area is separate from the production line, and wherein the transport device comprises: a feeder transport device configured to move along the production line, stack and move the mounting tool feeder, and attach the mounting tool feeder to the component assembler, and a automated guided vehicle configured to transport the mounting tool feeder between the storage area and the feeder transport device.The component mounting system according to claim 13, wherein the rodless transport vehicle is configured to transport the component mounting tool feeder to a work area in which an exchange operation for mounting the component mounting tools to or removing the component mounting tools from the component mounting tool feeder and / or a maintenance operation of the component mounting tools is performed, or to a component mounting tool maintenance apparatus configured to perform maintenance of the component mounting tools.A mounting tool feeder comprising: a mounting tool holding unit configured to removably hold component mounting tools that uses a component mounter in mounting a component on a circuit board, wherein the mounting tool holding unit has the same configuration as a mounting tool station disposed at a predetermined first replacement position at which automatic replacement of the component mounting tool in the component mounter is enabled; and a mounting portion removably mounted on the component mounter such that the mounting tool holding unit is disposed at a predetermined second replacement position in the component mounter.A mounting tool feeder comprising: a mounting tool holding unit configured to removably hold component mounting tools that a component mounter uses when mounting a component on a circuit board; a receiving magazine configured to receive a plurality of mounting tool holding units; an exchange mechanism configured to selectively guide the mounting tool holding unit out of the receiving magazine and to arrange the mounting tool holding unit at a predetermined exchange position at which automatic exchange of the component mounting tools in the component mounter is enabled; and a mounting portion mounted to the component mounter.

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