JPWO2018163425A1 - Nozzle exchange jig and nozzle exchange system using the same - Google Patents

Abstract

The nozzle replacement jig (7) is used to accommodate the nozzles in a nozzle stocker (6) that can accommodate a plurality of nozzles (5) for adsorbing electronic components in a predetermined arrangement pattern. The nozzle replacement jig (7) includes a main body portion (711) that includes a plurality of positioning portions (711) that non-fixably position the plurality of nozzles in an arrangement state corresponding to the arrangement pattern in the nozzle stocker (6). 71) and a switching mechanism (72) for switching between a first state in which the nozzle (5) is held in the positioning portion and a second state in which the holding is released.

Description

  The present invention relates to, for example, a nozzle replacement jig used for storing the nozzles in a nozzle stocker that stores a plurality of nozzles for component suction in a surface mounter, and a nozzle replacement system using the same.

  A surface mounter that mounts electronic components on a substrate generally includes a nozzle stocker that stocks component suction nozzles that are mounted on a head unit. The nozzle needs to be replaced depending on the part to be sucked, and the nozzle stocker accommodates a replacement nozzle. When an electronic component that requires nozzle replacement is mounted on the head unit, the nozzle is automatically replaced by accessing the nozzle stocker. For this reason, it is necessary to previously store the nozzles to be replaced in a predetermined arrangement pattern in the nozzle stocker. Further, it is also necessary to take out the nozzle group accommodated in the nozzle stocker at once for cleaning and return it after cleaning.

  For example, a nozzle replacement jig as disclosed in Patent Document 1 is used because it takes too much time to manually remove the nozzle from the nozzle stocker. The nozzle replacement jig is a jig capable of holding a plurality of nozzles in an arrangement state corresponding to the nozzle arrangement pattern in the nozzle stocker. An operator accesses the nozzle stocker by holding the nozzle replacement jig holding the replacement nozzle and transfers the replacement nozzle to the nozzle stocker or holds the nozzle replacement jig by holding an empty nozzle replacement jig. Take out the nozzles stored in the stocker.

  However, in the nozzle replacement jig of Patent Document 1, a nozzle holding portion that clamps each nozzle individually is applied. The nozzle holding portion includes a clamp member made of a leaf spring having a claw shape, and engages the claw-shaped portion with a clamp groove provided in the nozzle. For this reason, in order to remove the nozzle from the nozzle holding portion, a corresponding pulling force is required. When the number of nozzles held by the nozzle replacement jig increases, the pulling force is superimposed. Therefore, since a large force is required when transferring a large number of nozzles from the nozzle replacement jig to the nozzle stocker, it is necessary to place a heavy burden on the worker or reduce the number of nozzles to be transferred in a batch. There was a problem that workability was bad.

Japanese Patent No. 4353135

  An object of the present invention is to provide a nozzle replacement jig with good workability.

  A nozzle replacement jig according to an aspect of the present invention that achieves the above object is a nozzle replacement used for storing the nozzles in a nozzle stocker that can store a plurality of nozzles for electronic component suction in a predetermined arrangement pattern. A main body having a plurality of positioning portions for positioning each of the plurality of nozzles in a non-fixed manner in an arrangement state corresponding to the arrangement pattern in the nozzle stocker; and And a switching mechanism that switches between the first state to be held and the second state to be released from the holding.

  Another object of the present invention is to provide a nozzle replacement system that can reliably transfer a nozzle to a nozzle stocker using the nozzle replacement jig.

  A nozzle replacement system according to another aspect of the present invention that achieves the above-mentioned other object includes a nozzle stocker capable of accommodating a plurality of electronic component suction nozzles in a predetermined arrangement pattern, the nozzle replacement jig, A nozzle exchanging system comprising an interlocking mechanism for interlocking an operation of a nozzle stocker and an operation of the nozzle exchanging jig, wherein a plurality of nozzles are transferred from at least the nozzle exchanging jig to the nozzle stocker, The nozzle stocker includes a plurality of nozzle accommodation holes arranged in the predetermined arrangement pattern, a support state in which each of the plurality of nozzles is accommodated in the nozzle accommodation holes, and a release state in which the support is released. And a support mechanism capable of changing the state between the first state and the second state by the switching mechanism, and a front mechanism. From the released state by the supporting mechanism is interlocked with the state change to the support state.

FIG. 1 is a plan view showing a schematic configuration of a surface mounter to which a nozzle replacement jig according to an embodiment of the present invention is applied. FIG. 2 is a side view showing a schematic configuration of a head unit portion of the surface mounter. 3A to 3C are views showing the suction nozzle, in which FIG. 3A is a top view thereof, and FIGS. 3B and 3C are side views in which the viewing direction is changed. is there. 4A and 4B show the nozzle replacement jig in a first state for holding the nozzle, FIG. 4A is a side view thereof, and FIG. 4B is a bottom view thereof. 5A and 5B show the nozzle replacement jig in the second state for releasing the holding of the nozzle, FIG. 5A is a side view thereof, and FIG. 5B is a bottom view thereof. FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. FIG. 8 is an enlarged view of a main part of FIG. FIG. 9 is an enlarged view of a main part of FIG. FIG. 10 is a plan view of the jig main body (main body portion). 11A to 11C are views showing a holding plate (nozzle holding portion), in which FIG. 11A is a side view in the longitudinal direction, FIG. 11B is a plan view, and FIG. C) is a side view in the short direction. FIGS. 12A and 12B are schematic views showing the nozzle stocker 6, in which FIG. 12A shows a support state for supporting the nozzle, and FIG. 12B releases the support for the nozzle. Each of the released states is shown. FIGS. 13A to 13C are diagrams illustrating an example of a nozzle transfer procedure using the nozzle replacement jig of the present embodiment. FIGS. 14A to 14D are diagrams showing another example of the nozzle transfer procedure using the nozzle replacement jig of the present embodiment. 15A and 15B are schematic views showing a nozzle replacement jig according to a modification.

[About surface mounters]
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. First, a surface mounter to which a nozzle replacement jig according to an embodiment of the present invention is applied will be described. FIG. 1 is a plan view showing a schematic configuration of the surface mounter 1, and FIG. 2 is a side view showing a schematic configuration of a head unit 4 portion of the surface mounter 1. The surface mounter 1 is a device for mounting various electronic components on a substrate P. In FIGS. 1 and 2, there are XYZ direction indications, and the other direction indications are similar. In the following description, the X direction may be referred to as the left-right direction (the moving direction of the substrate P), the Y direction may be referred to as the front-rear direction, and the Z direction may be referred to as the up-down direction.

<Overall structure of surface mounter>
The surface mounter 1 includes a base unit 10, a substrate transport unit 2 disposed on the base unit 10, a component supply unit 3, and a head unit 4 including a plurality of suction nozzles 5 (nozzles) for sucking electronic components, And the nozzle stocker 6 which accommodates the suction nozzle 5 for replacement | exchange is provided. The head unit 4 is also equipped with a pair of substrate recognition cameras 42 and a scan unit 43. The worker uses the nozzle replacement jig 7 to accommodate the replacement suction nozzle 5 in the nozzle stocker 6.

  The substrate transport unit 2 transports the substrate P on which the electronic component 32 (FIG. 2) is mounted. The substrate transport unit 2 includes a pair of conveyors 21 and 22 that transport the substrate P in the left-right direction on the base unit 10. The conveyors 21 and 22 carry the board P into the surface mounter 1 from the right side in FIG. 1, transport it leftward to a predetermined work position (the position of the board P shown in FIG. 1), and temporarily stop it. At this working position, the electronic component 32 is mounted on the substrate P. A substrate support device (not shown) for supporting the substrate P with a backup pin during a mounting operation is disposed in a region below the work position. After the mounting operation, the conveyors 21 and 22 convey the board P to the left and carry it out of the surface mounting machine 1 from the left side.

  The component supply unit 3 supplies the electronic component 32 to be mounted. The component supply unit 3 is disposed on both sides in the front-rear direction of the substrate transport unit 2. Each component supply unit 3 includes a plurality of tape feeders 31 arranged in the left-right direction. Each tape feeder 31 holds a reel on which a tape on which small pieces of electronic components 32 such as integrated circuits (ICs), transistors, resistors, capacitors and the like are accommodated and held is wound. The tape feeder 31 intermittently feeds the tape from the reel and supplies electronic components to the component supply position at the tip of the feeder.

  The head unit 4 takes out the electronic component 32 from the component supply unit 3 and mounts it on the substrate P. The head unit 4 is disposed above the base portion 10 so as to be movable in the X and Y directions, takes out an electronic component from the tape feeder 31 at the component supply position, and mounts the electronic component at a predetermined position on the substrate P at the working position. . A support beam 23 extending in the X direction is provided above the base portion 10. The head unit 4 is movably supported by an X-axis fixed rail 24 fixed to the support beam 23. The support beam 23 is supported by a Y-axis fixed rail 25 whose both ends extend in the Y direction, and is movable along the Y-axis fixed rail 25 in the Y direction. An X-axis servo motor 26 and a ball screw shaft 27 are disposed with respect to the X-axis fixed rail 24, and a Y-axis servo motor 28 and a ball screw shaft 29 are disposed with respect to the Y-axis fixed rail 25. The head unit 4 moves in the X direction by the rotational drive of the ball screw shaft 27 by the X-axis servomotor 26, and moves in the Y direction by the rotational drive of the ball screw shaft 29 by the Y-axis servomotor 28.

  A plurality of heads 41 for holding and transporting the electronic component 32 are mounted on the head unit 4. In the present embodiment, an example in which a total of six heads 41 are arranged in a row in the X direction is shown. Each head 41 includes a drive shaft extending in the Z direction (vertical direction) and a suction nozzle 5 attached to the lower end of the drive shaft and sucking the electronic component 32. The suction nozzle 5 is connected to a negative pressure generator (not shown) via an internal passage of the drive shaft and a switching valve (not shown). At the time of component suction, a negative pressure suction force is applied to the tip of the suction nozzle 5 from the negative pressure generating device, whereby the electronic component 32 can be sucked. Note that, when the component is mounted, the negative pressure suction force is eliminated, and the electronic component 32 sucked by the suction nozzle 5 is released. A specific example of the suction nozzle 5 will be described later with reference to FIG.

  Each head 41 can be moved up and down and rotated about the central axis (R axis) of the head unit 4. The head unit 4 includes an elevation drive mechanism and a rotation drive mechanism for the elevation and rotation of the head 41. The raising / lowering drive mechanism raises / lowers the head 41 between a lowered position when the electronic component is sucked or mounted and an elevated position when the electronic component is conveyed or imaged. The rotation drive mechanism is a mechanism for rotating the head 41 as necessary, and adjusts the posture of the electronic component by rotating the electronic component in the R-axis direction when mounting the component. These drive mechanisms are composed of a servo motor and a predetermined power transmission mechanism.

  The board recognition camera 42 is fixedly mounted on both the left and right sides of the head unit 4, and various marks attached to the surface (upper surface) of the board P carried to the work position of the surface mounter 1 by the conveyors 21 and 22. Image. In FIG. 1, as an example of the mark, a pair of fiducial marks FM attached on a diagonal line of a rectangular substrate P is shown. The fiducial mark FM is a mark for detecting a positional deviation amount with respect to the origin coordinates of the work position of the substrate P that has been loaded.

  The scan unit 43 is mounted in the vicinity of the lower end of the head unit 4 so as to be movable in the X direction (arrangement direction of the suction nozzles 5) with respect to the head unit 4, and images the electronic component 32 sucked by the suction nozzles 5. . The scan unit 43 is a unit for recognizing an image of the suction state of the electronic component 32 by the suction nozzle 5. The scan unit 43 performs a predetermined imaging operation while the head unit 4 is transporting the electronic component 32 sucked by the suction nozzle 5 from the component supply position to the work position. In this imaging operation, the scanning unit 43 images the electronic component 32 sucked by the suction nozzle 5 from the lower surface side while moving in the X direction along the ball screw shaft 44 attached to the head unit 4 and extending in the X direction. To do.

  The nozzle stocker 6 is a port for stocking the suction nozzle 5 attached to the head unit 4 (head 41). Since the suction nozzle 5 needs to be replaced depending on the electronic component 32 to be suctioned, the replacement suction nozzle 5 is accommodated in the nozzle stocker 6. The head unit 4 automatically accesses the nozzle stocker 6 and automatically replaces the suction nozzle 5 when the electronic component 32 to be mounted on the substrate P cannot be sucked by the suction nozzle 5 that is currently mounted or is not suitable for suction. To do. Therefore, in the nozzle stocker 6, the suction nozzles 5 to be replaced are accommodated in advance in a predetermined arrangement pattern, that is, an arrangement pattern corresponding to the arrangement pitch of the heads 41.

  The nozzle replacement jig 7 is a jig that can hold a plurality of suction nozzles 5 in an arrangement state corresponding to the arrangement pattern of the suction nozzles 5 in the nozzle stocker 6. The nozzle replacement jig 7 is used for the operation of loading the suction nozzle 5 into the nozzle stocker 6 and the operation of taking out the suction nozzle 5 from the nozzle stocker 6. The worker holds the nozzle replacement jig 7 holding the replacement suction nozzle 5, accesses the nozzle stocker 6, transfers the suction nozzle 5 to the nozzle stocker 6, or sets an empty nozzle replacement jig 7. The suction nozzle 5 accommodated in the nozzle stocker 6 is taken out. In some cases, the nozzle replacement jig 7 is loaded into the nozzle cleaning machine together with the suction nozzle 5 taken out, and the contaminated suction nozzle 5 is used for cleaning.

<Adsorption nozzle structure>
3 (A) to 3 (C) are views showing the suction nozzle 5, FIG. 3 (A) is a top view thereof, FIG. 3 (B) is a side view, and FIG. 3 (C) is FIG. It is the side view which rotated the visual line direction 90 degrees to the axial direction with respect to B). The suction nozzle 5 is a nozzle having a buffering function that reduces the impact applied to the electronic component 32 and the substrate P when the electronic component 32 is sucked from the tape feeder 31 and when the electronic component 32 is mounted on the substrate P. The suction nozzle 5 includes a nozzle body 51, a holder 52 that holds the nozzle body 51 so as to be movable up and down, and a biasing spring 53 that is interposed between the nozzle body 51 and the holder 52.

  The nozzle body 51 includes a nozzle tip 511, a nozzle cylinder 512 connected to the upper side of the nozzle tip 511, and a nozzle flange 513 disposed at a connecting portion between the nozzle tip 511 and the nozzle cylinder 512. The nozzle tip 511 includes a suction opening that sucks the electronic component 32, and the nozzle cylinder 512 includes a suction conduit that is continuous with the suction opening. The nozzle flange 513 is a cylindrical portion that protrudes radially outward from the nozzle tip 511 and the nozzle cylinder 512.

  The holder part 52 is a substantially cylindrical member, and includes a cylinder part 54 and a base part 55 above the cylinder part 54. The cylinder portion 54 includes a sliding hole 541 formed of a cylindrical space inside. The upper side of the nozzle cylinder portion 512 of the nozzle body 51 is accommodated in the sliding hole 541 and slides in the vertical direction. The cylinder portion 54 includes a cylinder flange 542 that protrudes radially outward near the lower end thereof. The urging spring 53 is a coil spring, is inserted between the cylinder flange 542 and the nozzle flange 513, and urges the nozzle body 51 downward.

  The base 55 includes a large-diameter hole 551 formed of a cylindrical space inside. The large-diameter hole 551 is connected to the sliding hole 541 and communicates with the suction conduit of the nozzle cylinder portion 512. The large-diameter hole 551 is connected to a pipe line connected to the negative pressure generator described above. A D-cut surface 56 for determining a position around the axis of the suction nozzle 5 is provided on the side peripheral surface of the base 55. Further, a lower end surface 57 (a part of the nozzle) that is a step surface based on a difference in diameter from the cylinder portion 54 exists at the lower portion of the base portion 55. This lower end surface 57 is a portion held by the nozzle replacement jig 7.

[Details of nozzle replacement jig]
Hereinafter, the nozzle replacement jig 7 will be described in detail. 4 and 5 are views showing the external appearance of the nozzle replacement jig 7. FIG. 4 shows the nozzle replacement jig 7 in the first state for holding the suction nozzle 5, FIG. 4 (A) is a side view thereof, and FIG. 4 (B) is a bottom view thereof. FIGS. 5A and 5B show the nozzle replacement jig 7 in the second state in which the holding of the suction nozzle 5 is released. FIG. 5A is a side view and FIG. 5B is a bottom view. 6 is a sectional view taken along line VI-VI in FIG. 4B, and FIG. 7 is a sectional view taken along line VII-VII in FIG. 8 is an enlarged view of a main part of FIG. 4B, and FIG. 9 is an enlarged view of a main part of FIG. 5B.

  The nozzle replacement jig 7 includes a jig main body 71 (main body part) and a switching mechanism 72. The jig main body 71 includes a plurality of nozzle array holes 711 (positioning portions) for positioning the plurality of suction nozzles 5 in a non-fixed manner in an array state corresponding to the array pattern of the suction nozzles 5 in the nozzle stocker 6. The switching mechanism 72 switches between the first state in which the suction nozzle 5 received and positioned in the nozzle array hole 711 is held in the nozzle array hole 711 and the second state in which the holding is released.

<Jig body>
FIG. 10 is a plan view of the jig body 71 viewed from the −Z side. The jig body 71 has a rectangular shape that is long in the X direction in plan view, and has a thickness in the Z direction that is longer than the length in the Z direction of the base portion 55 of the suction nozzle 5. The jig body 71 includes an upper surface (+ Z side surface) and a lower surface (−Z side surface), four side surfaces, that is, a −X side surface 715 and a + X side surface 716 on the short side, and a −Y side surface on the long side. 717 and + Y side surface 718. The nozzle array hole 711 opens on the lower surface of the jig body 71 and has a depth that is about half the thickness of the jig body 71 in the Z direction. Here, an example in which 10 nozzle array holes 711 in the X direction and 4 nozzle arrays in the Y direction are arranged in a matrix in the jig body 71 is shown. The nozzle array hole 711 is a cylindrical hole corresponding to the size of the base 55 and accommodates the base 55.

  The inner diameter of the nozzle array hole 711 is slightly larger than the outer diameter of the base portion 55, and the movement of the suction nozzle 5 in the X direction and the Y direction is restricted by fitting the base portion 55 into the nozzle array hole 711. However, the nozzle array holes 711 themselves do not restrain movement of the suction nozzle 5 in the Z direction. In other words, the nozzle array hole 711 positions the suction nozzle 5 in a non-fixed manner in the sense that the position of the suction nozzle 5 in the XY direction is determined but free in the Z direction.

  A cylindrical body 712 is disposed in each nozzle array hole 711. The cylindrical body 712 is a cylindrical body that is arranged concentrically with the nozzle array holes 711 and has the same length as the thickness of the jig main body 71 in the Z direction. When the base portion 55 is fitted into the nozzle array hole 711, the cylindrical body 712 is inserted into the large diameter hole 551. An upper plate 713 provided with a through hole 714 is attached to the upper surface of the jig body 71. The through hole 714 is drilled in accordance with the position of the cylindrical body 712. When the nozzle replacement jig 7 holding the suction nozzle 5 is used for a nozzle cleaning operation, the internal passage of the suction nozzle 5 (sliding hole 541, suction pipe of the nozzle body 51) is passed through the through hole 714 and the cylindrical body 712. And the suction opening of the nozzle tip 511) is cleaned.

  As shown in FIG. 10 with a part broken away, an alignment pin 719 is assembled in each nozzle array hole 711. The alignment pins 719 are cylindrical pins extending in the Z direction, and are arranged on the inner peripheral wall in the + Y side orientation of each nozzle array hole 711 in a form in which two are aligned in the X direction. A part of the pair of alignment pins 719 protrudes radially inward from the inner peripheral wall of the nozzle array hole 711. When the base 55 of each suction nozzle 5 is inserted into each nozzle array hole 711, the D-cut surface 56 is aligned with the protruding portion of the alignment pin 719. Thereby, the position of the suction nozzle 5 around the axis is determined.

  Guide pins 71 </ b> A are attached to the −Y side surface 717 and + Y side surface 718 of the jig body 71 so as to project from the respective side surfaces in the −Y direction and the + Y direction. FIG. 10 shows a pin hole 71B into which the guide pin 71A is fitted. The guide pin 71A is provided to guide the slide movement in the X direction of a holding plate 73 described later.

<Switching mechanism>
The switching mechanism 72 is a mechanism for collectively switching the first state and the second state for the plurality of suction nozzles 5. In the present embodiment, the switching mechanism 72 includes a holding plate 73 (nozzle holding unit), a coil spring 75 (first maintaining mechanism), and a holding magnet 76 (second maintaining mechanism). For the batch switching, the holding plate 73 has a first position for forming the first state with respect to the jig body 71 and a second position for releasing the engagement to form the second state. The position is changed in the X direction.

  11A to 11C are views showing the holding plate 73, in which FIG. 11A is a side view in the longitudinal direction, FIG. 11B is a plan view, and FIG. 11C is a short view. It is a side view of a hand direction. The holding plate 73 is made of, for example, a magnetic sheet metal member, and includes a rectangular flat plate-shaped bottom plate 731, a pair of long side plates 732 that rise in the + Z direction from the + Y and −Y edges that are the long sides of the bottom plate 731, and the bottom plate 731. -X side plate 733 and + X side plate 734 rising in the + Z direction from the −X and + X end edges, respectively.

  The bottom plate 731 has a rectangular shape slightly larger than the jig main body 71 in a plan view, and is a part that abuts on or is close to the lower surface of the jig main body 71. The bottom plate 731 has four long holes 74 extending in parallel in the X direction from the vicinity of the −X side plate 733 to the vicinity of the + X side plate 734. The long holes 74 are drilled so as to match the row arrangement of the 4 rows × 10 columns arrangement of the nozzle arrangement holes 711 in the jig body 71. The long holes 74 are partitioned by nozzle passing portions 741 and engaging portions 742 of the bottom plate 731 that are alternately arranged in the X direction.

  The nozzle passage portion 741 is an arc-shaped opening edge along the outer peripheral surface shape of the base portion 55 of the suction nozzle 5. In the nozzle passage portion 741, the maximum width in the Y direction of the long hole 74 (the diameter of the virtual circle formed by the pair of nozzle passage portions 741) is set slightly larger than the outer diameter of the cylindrical base portion 55. Yes. Ten nozzle passing portions 741 are provided in each of the long holes 74 in accordance with the number (10) of nozzle arrangement holes 711 of the jig main body 71 and the arrangement pitch thereof.

  The engaging portion 742 is a protruding portion disposed between the pitches of the nozzle passage portions 741. In the pair of engaging portions 742 facing each other, the Y-direction width of the long hole 74 is set to be smaller than the outer diameter of the base portion 55 and slightly larger than the outer diameter of the cylinder portion 54. Therefore, when the holding plate 73 is slid in the X direction in a state where the suction nozzle 5 is accommodated in the nozzle array hole 711 through the long holes 74, the engaging portion 742 has a lower end surface 57 (part of the nozzle) of the base portion 55. ) Can enter (engage). That is, the engaging portion 742 can support the suction nozzle 5 on the lower end surface 57.

  The long side plates 732 of −Y and + Y have the same X-direction width as the bottom plate 731 and are portions bent vertically upward with respect to the bottom plate 731. Each long side plate 732 has three guide holes 732A (guide portions) arranged in the X direction at equal intervals. The −Y and + Y long side plates 732 face the −Y side surface 717 and + Y side surface 718 of the jig body 71, respectively. The guide hole 732A is a hole into which the guide pin 71A of the jig body 71 is fitted, and the Z-direction width is substantially the same as the outer diameter of the guide pin 71A, but the X-direction width is longer than the outer diameter of the guide pin 71A. It is a long hole.

  By inserting the guide pins 71A into the guide holes 732A, the holding plate 73 is assembled to the jig body 71. At this time, as shown in FIGS. 6 and 7, the bottom plate 731 is in contact with or close to the lower surface of the jig body 71. Further, the holding plate 73 can slide in the X direction with respect to the jig body 71 in such a manner that the guide hole 732A is guided by the guide pin 71A. The width of the slide movement needs to be at least a width corresponding to ½ of the arrangement pitch of the nozzle passing portions 741 (engaging portions 742) of the long holes 74 in the X direction.

  The −X side plate 733 and the + X side plate 734 have a width in the Y direction shorter than the bottom plate 731, and are portions bent vertically upward with respect to the bottom plate 731. The −X and + X side plates 733 and 734 have a longer Z-direction width than the long side plate 732. The −X and + X side plates 733 and 734 face the −X and + X side surfaces 715 and 716 of the jig main body 71, respectively.

  With reference to FIGS. 6 and 7, the coil spring 75 and the holding magnet 76 are disposed between the + X side surface 716 of the jig body 71 and the + X side plate 734 of the holding plate 73. The coil spring 75 has one coil end in contact with the + X side surface 716 and the other coil end in contact with the + X side plate 734. When the jig body 71 is stationary, the coil spring 75 biases the holding plate 73 in the + X direction through the + X side plate 734.

  The holding magnet 76 is attached to the + X side surface 716 of the jig body 71. In a state where the holding plate 73 is moved to the most + X side with respect to the jig main body 71 (a state where the coil spring 75 is extended), a gap exists between the holding magnet 76 and the + X side plate 734 of the holding plate 73 (see FIG. 6). On the other hand, in the state where the holding plate 73 is moved to the −X side by a predetermined distance with respect to the jig main body 71 (the coil spring 75 is compressed), the + X side plate 734 is attracted to the holding magnet 76 (FIG. 7).

[Operation of nozzle replacement jig]
Subsequently, the holding and releasing operation of the suction nozzle 5 by the nozzle replacement jig 7 will be described. As described above, the holding plate 73 slides in the X direction. By this sliding movement, the state of the suction nozzle 5 accommodated in the nozzle array hole 711 is changed to the first state in which the nozzle array hole 711 is held, It is switched between the second state in which the holding is released. In the first state, the suction nozzle 5 is fixed at the position of the nozzle array hole 711 and cannot be detached from the jig body 71. On the other hand, in the second state, the suction nozzle 5 is detachable from the nozzle array hole 711.

  The holding plate 73 has a first position where the engaging portion 742 engages with a part of the suction nozzle 5 (the lower end surface 57 of the base portion 55 in this embodiment) to form the first state (FIGS. 4, 6, and 5). 8) and the jig body 71 so as to change its position between the second position (FIGS. 5, 7, and 9) where the engagement is released and the second state is formed. . This movement is limited to sliding movement in the X direction by the engagement between the guide pin 71A and the guide hole 732A.

  The first position is a position where the holding plate 73 is relatively moved to the + X side by the biasing force of the coil spring 75. Accordingly, the + X side surface 716 of the jig main body 71 and the + X side plate 734 of the holding plate 73 are separated from each other, while the −X side surface 715 and the −X side plate 733 are close to each other. Then, the engaging portion 742 of the long hole 74 enters the lower side of the lower end surface 57 of the base portion 55 (moves to a position overlapping in the Z direction), and the engaging portion 742 supports the lower end surface 57. Due to the engagement between the engaging portion 742 and the lower end surface 57, the suction nozzle 5 cannot be removed from the nozzle array hole 711. The coil spring 75 has a function of maintaining the first state by holding the holding plate 73 at the first position by the biasing force.

  The second position is a position where the holding plate 73 is relatively moved to the −X side by the magnetic attractive force of the holding magnet 76. As a result, the + X side surface 716 of the jig body 71 and the + X side plate 734 of the holding plate 73 approach each other with the holding magnet 76 therebetween, while the −X side surface 715 and the −X side plate 733 are separated from each other. The coil spring 75 is in a compressed state and has a biasing force that extends in the X direction.

  In the second position, the engagement between the engagement portion 742 and the lower end surface 57 is released. As shown in the enlarged view of FIG. 9, the engaging portion 742 has moved to a position that does not overlap the base portion 55 of the suction nozzle 5 in the Z direction. That is, the engaging portion 742 is retracted between the pitches of the adjacent nozzle array holes 711. On the other hand, the nozzle passage portions 741 and the nozzle arrangement holes 711 of the holding plate 73 are arranged at the same pitch in the X direction. Therefore, when the engaging portion 742 moves between the pitches of the nozzle array holes 711, the nozzle passage portion 741 and the nozzle array holes 711 naturally overlap each other in the Z direction. As a result, the suction nozzle 5 can be removed from the nozzle array hole 711. The holding magnet 76 functions to maintain the second state by holding the holding plate 73 at the second position by the magnetic attraction force.

  The position of the holding plate 73 between the first position (FIG. 6) and the second position (FIG. 7) can be changed manually by an operator. When changing the position from the first position to the second position, the worker moves the holding plate 73 in the −X direction against the biasing force of the coil spring 75, and moves the + X side plate 734 to the holding magnet 76. What is necessary is just to make it adsorb | suck. Conversely, when changing the position from the second position to the first position, the worker peels off the + X side plate 734 from the holding magnet 76 and applies the biasing force of the coil spring 75 to move the holding plate 73 in the + X direction. Move to. Of course, a drive source such as a solenoid actuator may be mounted on the nozzle replacement jig 7 so that the holding plate 73 is automatically moved.

  According to such a nozzle replacement jig 7, the suction nozzle 5 is held in the nozzle array hole 711 of the jig main body 71 in the first state (the holding plate 73 is in the first position). When the state is switched to the second state (the holding plate 73 is in the second position), the holding is released. The operator only switches the switching mechanism 72 from the first state to the second state when the suction nozzle 5 is transferred to the nozzle stocker 6, that is, the holding plate 73 is moved from the first position to the first position. Just move it to position 2. Therefore, a large force is not required at the time of transfer, and workability can be improved even if the number of suction nozzles 5 to be transferred becomes large.

  Further, the switching mechanism 72 can switch between the first state and the second state at once for the plurality of suction nozzles 5. That is, the nozzle arrangement holes 711 of the jig body 71 and the nozzle passage portions 741 (engagement portions 742) of the holding plate 73 are arranged at the same pitch in the X direction. For this reason, when the holding plate 73 is slid in the X direction, the first state and the second state are collectively switched with respect to the suction nozzles 5 accommodated in all the nozzle array holes 711. . Further, the operator's operation necessary for this is only the sliding movement of the holding plate 73. Therefore, it is possible to easily transfer all the suction nozzles 5 held by the nozzle replacement jig 7 to the nozzle stocker 6 in a lump, and workability can be further improved.

[Transfer operation to nozzle stocker]
Next, a specific example of the transfer operation of the suction nozzle 5 held by the nozzle replacement jig 7 to the nozzle stocker 6 will be described. First, a schematic configuration of the nozzle stocker 6 will be described based on schematic diagrams of FIGS. 12 (A) and 12 (B). FIG. 12A shows a support state in which the nozzle stocker 6 supports the suction nozzle 5, and FIG. 12B shows a release state in which the support of the suction nozzle 5 is released.

  The nozzle stocker 6 includes a stocker body 61 that holds the suction nozzle 5, and a shutter member 62 (support mechanism) that is slidable in the X direction with respect to the stocker body 61. The stocker body 61 includes a plurality of nozzle housing holes 63 arranged in a predetermined arrangement pattern. The nozzle accommodation holes 63 are holes that are open on the upper surface of the stocker body 61 and can accommodate the suction nozzles 5, and are arranged in an arrangement pattern corresponding to the arrangement pitch of the heads 41.

  The shutter member 62 functions as a support mechanism for changing the state between a support state in which each of the plurality of suction nozzles 5 is accommodated in the nozzle accommodation hole 63 and a release state in which the support is released. Specifically, the shutter member 62 is a flat member that is attached to the upper surface of the stocker body 61 and slides in the X direction. The shutter member 62 has a plurality of nozzle insertion openings 64 and engagement portions 65 (support portions), and is the same member as the holding plate 73 shown in FIG. The nozzle insertion opening 64 is an opening portion through which the suction nozzle 5 can pass. The engaging portion 65 is a portion that engages with a part of the suction nozzle 5 and supports the suction nozzle 5.

  An operation plate 66 extends from the −X direction end of the shutter member 62. The operation plate 66 is connected to an operation rod of a drive unit 67 made of a solenoid type actuator. The shutter member 62 slides in the X direction by the operation of the driving unit 67. As shown in FIG. 12A, the shutter member 62 is supported by the engaging portion 65 in a state where each of the plurality of suction nozzles 5 is accommodated in the nozzle accommodation hole 63 (supported state). As shown in FIG. 12B, the position can be changed between a release position (release state) where the support by the engaging portion 65 is released. When the shutter member 62 is in the support position, the suction nozzle 5 is fixed in the nozzle accommodation hole 63, and when in the release position, the suction nozzle 5 is detachable from the nozzle accommodation hole 63.

  FIGS. 13A to 13C are diagrams showing an example of a procedure for batch transfer of the suction nozzles 5 to the nozzle stocker 6 using the nozzle replacement jig 7 of the present embodiment. Here, regarding the nozzle replacement jig 7, a state where the holding plate 73 is in the first position where the suction nozzle 5 is held is indicated as “closed”, and a state where the holding plate 73 is in the second position where the holding is released is indicated as “open”. Further, regarding the nozzle stocker 6, a state where the shutter member 62 is in the support position is indicated as “closed”, and a state where the shutter member 62 is in the release position is indicated as “open”.

  The worker accesses the nozzle stocker 6 with the nozzle replacement jig 7 holding the suction nozzle 5. At this time, as shown in FIG. 13A, the nozzle replacement jig 7 is “closed” for holding the suction nozzle 5, and the nozzle stocker 6 is “open” for receiving the suction nozzle 5. At the time of the access, the worker positions each suction nozzle 5 in the nozzle housing hole 63 and places the nozzle replacement jig 7 on the nozzle stocker 6.

  Next, as shown in FIG. 13B, the operator operates the holding plate 73 to open the nozzle replacement jig 7. On the other hand, on the surface mounter 1 side, the shutter member 62 is moved by the driving unit 67, and the nozzle stocker 6 is "closed". As a result, all the suction nozzles 5 are collectively delivered from the nozzle replacement jig 7 to the nozzle stocker 6. At the time of delivery, the holding plate 73 does not restrain the suction nozzle 5, so that the worker does not need any force work.

  Thereafter, as shown in FIG. 13C, the worker lifts the nozzle replacement jig 7 upward while maintaining the “open” state. All the suction nozzles 5 are held by the nozzle stocker 6. At this time, since the suction nozzle 5 is released from being held by the holding plate 73 and the suction nozzle 5 is held by the shutter member 62, the suction nozzle 5 does not remain in the nozzle replacement jig 7 halfway, and the nozzle is reliably It is delivered to the stocker 6. Therefore, when the nozzle replacement jig 7 is lifted, it is possible to prevent such a problem that the suction nozzle 5 that has failed in delivery falls.

[Nozzle replacement system]
Subsequently, in addition to the nozzle stocker 6 and the nozzle replacement jig 7 described above, an embodiment of a nozzle replacement system including an interlocking mechanism that links the operation of the nozzle stocker 6 and the operation of the nozzle replacement jig 7 will be illustrated. 14A to 14D are diagrams illustrating an example of a procedure for batch transfer of the suction nozzles 5 from the nozzle replacement jig 7 to the nozzle stocker 6 in the nozzle replacement system of the present embodiment. Also in FIG. 14, the holding state of the suction nozzle 5 by the nozzle replacement jig 7 and the nozzle stocker 6 is shown as “open” and “closed” in the same manner as FIG. 13.

  The interlocking mechanism includes switching from the first state to the second state by the switching mechanism 72 (holding plate 73) in the nozzle replacement jig 7, that is, switching from “closed” to “open”, and in the nozzle stocker 6. This is a mechanism for interlocking the state change from the released state to the support state by the support mechanism (shutter member 62).

  Here, an example in which the holding plate 73 of the nozzle replacement jig 7 includes an engagement piece 735 and the shutter member 62 of the nozzle stocker 6 includes an engagement hole 621 is shown as the interlocking mechanism. The engagement piece 735 can be fitted into the engagement hole 621, and the holding plate 73 and the shutter member 62 slide in conjunction with each other by the fitting.

  The worker accesses the nozzle stocker 6 with the nozzle replacement jig 7 holding the suction nozzle 5. At this time, as shown in FIG. 14A, the nozzle replacement jig 7 is “closed” for holding the suction nozzle 5, and the nozzle stocker 6 is “open” for receiving the suction nozzle 5. At the time of the access, the worker aligns each suction nozzle 5 with the nozzle accommodation hole 63, aligns the engagement piece 735 with the engagement hole 621, and places the nozzle replacement jig 7 on the nozzle stocker 6. Put it on. Accordingly, as shown in FIG. 14B, each suction nozzle 5 is accommodated in each nozzle accommodation hole 63, and the engagement piece 735 is fitted into the engagement hole 621 so that the holding plate 73 and the shutter member 62 are connected. It can be linked.

  Next, as shown in FIG. 14C, on the surface mounter 1 side, the shutter member 62 is moved by the driving unit 67 to make the nozzle stocker 6 “closed”. Then, the holding plate 73 is moved in conjunction with the movement of the shutter member 62, and the nozzle replacement jig 7 is in the “open” state. As a result, all the suction nozzles 5 are collectively delivered from the nozzle replacement jig 7 to the nozzle stocker 6.

  Thereafter, as shown in FIG. 14D, the worker lifts the nozzle replacement jig 7 upward while maintaining the “open” state. At this time, since the holding plate 73 does not restrain the suction nozzle 5, the worker does not need any force work. Thereby, all the suction nozzles 5 are held by the nozzle stocker 6.

  According to this nozzle replacement system, the suction nozzle 5 is released from the holding plate 73 (from “closed” to “open”), and the suction nozzle 5 is held from the shutter member 62 (from “open” to “closed”). ) Is performed synchronously. For this reason, it is possible to prevent both of the nozzle replacement jig 7 and the nozzle stocker 6 from being “open” and causing the suction nozzle 5 to easily fall off. Further, as in the example of FIG. 13, the suction nozzle 5 is reliably delivered to the nozzle stocker 6 without remaining in the nozzle replacement jig 7 halfway. Therefore, when the nozzle replacement jig 7 is lifted, it is possible to prevent such a problem that the suction nozzle 5 that has failed in delivery falls.

[Modification of switching mechanism]
15A and 15B are schematic views showing a nozzle replacement jig 7A according to a modification. In the above embodiment, the nozzle replacement jig 7 that holds the suction nozzle 5 by mechanically coupling the holding plate 73 and the suction nozzle 5 is illustrated. In this modification, a nozzle replacement jig 7A that holds the suction nozzle 5 by magnetic coupling using the principle of a magnet clamp is shown.

  In this modification, the suction nozzle 5 made of a magnetic material is used. The magnetic material here is a ferromagnetic material that is strongly adsorbed to a permanent magnet or the like by magnetic coupling, and examples thereof include iron and magnetic SUS. The nozzle replacement jig 7A includes a jig main body 710 (main body portion) and a switching mechanism 720. The jig body 710 has a plurality of nozzle array holes 711 for positioning the suction nozzle 5, and includes a nonmagnetic member 77 above each nozzle array hole 711. The switching mechanism 720 includes a holding plate 730 (nozzle holding unit), a coil spring 75, and a holding magnet 76. The holding plate 730 includes a plurality of magnets 78 (magnet members) arranged to match the arrangement pitch of the nozzle arrangement holes 711. The magnet 78 can be magnetically coupled to at least a part of the suction nozzle 5.

  The holding plate 730 includes a first magnetic state in which a magnet 78 is magnetically coupled to a part of the suction nozzle 5 to form the first state in which the suction nozzle 5 is held, and a second magnetic state in which the magnetic coupling is released to release the holding. The state is changed between the second magnetic state forming the state. FIG. 15A shows the first state. At this time, the magnet 78 is located immediately above the nozzle array hole 711. The nonmagnetic member 77 is a member having a width smaller than the outer diameter of the suction nozzle 5 and is located between the magnet 78 and the suction nozzle 5. In this state, the magnetic path M <b> 1 from the N pole of the magnet 78 to the S pole through the base 55 (FIG. 3) of the suction nozzle 5 is formed by the nonmagnetic member 77. Therefore, the suction nozzle 5 is magnetically coupled to the magnet 78 and is held in the nozzle array hole 711.

  FIG. 15B shows the second state. The holding plate 730 is attracted to the holding magnet 76 and is slid and moved from the position of the first state by a half pitch of the arrangement pitch of the nozzle arrangement holes 711. For this reason, the magnet 78 is removed from the arrangement line of the nonmagnetic member 77 and the suction nozzle 5. In this case, a magnetic path M2 that short-circuits from the N pole to the S pole of the magnet 78 is formed, and the magnet 78 and the suction nozzle 5 are not magnetically coupled. Accordingly, the magnetic attraction force with respect to the suction nozzle 5 is released, and the suction nozzle 5 can be pulled out of the nozzle array hole 711. In this manner, the first state and the second state can be switched using the magnetic coupling using the magnet 78.

  In addition, the present invention is not limited to the above-described embodiments, and various modifications can be made. For example, the switching mechanism 72 described above has shown an example in which the state switching between the first state and the second state is performed simultaneously for all the suction nozzles 5 at the same time. Instead of this, a plurality of switching mechanisms 72 may be provided in the nozzle replacement jig 7, and the state switching may be performed in units of a predetermined group of suction nozzles 5.

  The specific embodiments described above mainly include inventions having the following configurations.

  A nozzle replacement jig according to an aspect of the present invention is a nozzle replacement jig used for storing the nozzles in a nozzle stocker capable of storing a plurality of nozzles for sucking electronic components in a predetermined arrangement pattern. A main body having a plurality of positioning portions for positioning the plurality of nozzles in a non-fixed manner in an arrangement state corresponding to the arrangement pattern in the nozzle stocker, and a first portion in which the nozzles are held in the positioning portion And a switching mechanism that switches between the state and the second state in which the holding is released.

  According to this nozzle replacement jig, the nozzle is held in the positioning portion in the first state, but the holding is released when the nozzle is switched to the second state by a switching mechanism. The operator only needs to switch the switching mechanism from the first state to the second state when the nozzle is transferred to the nozzle stocker. Therefore, a large force is not required at the time of transfer, and workability can be improved even if the number of nozzles to be transferred becomes large.

  In the nozzle replacement jig, it is desirable that the switching mechanism switches the first state and the second state at once for a plurality of the nozzles.

  According to this nozzle replacement jig, it is possible to transfer all of the nozzles held by the nozzle replacement jig to the nozzle stocker all at once, and the workability can be further improved.

  In the nozzle replacement jig, the switching mechanism includes a nozzle holding portion having a plurality of engaging portions each engageable with a portion of each nozzle, and the nozzle holding portion is configured such that the engaging portion is the nozzle. It is desirable that the position can be changed between a first position that engages with a portion to form the first state and a second position that releases the engagement and forms the second state.

  According to this nozzle replacement jig, the first state and the second state can be achieved with a simple structure and a simple operation of moving the nozzle holding portion between the first position and the second position. Can be switched. Therefore, the structure of the switching mechanism can be simplified and the workability can be further improved.

  In this case, the nozzle holding portion changes position between the first position and the second position by sliding movement with respect to the main body portion, and the switching mechanism further includes the nozzle A guide portion for guiding the sliding movement of the holding portion; a first maintaining mechanism for keeping the nozzle holding portion at the first position and maintaining the first state; and the nozzle holding portion at the second position. And a second maintenance mechanism that maintains the second state.

  According to this nozzle replacement jig, the first and second positions can be changed by sliding the nozzle holding portion, and the first and second maintaining mechanisms can be used at each position. The nozzle holding part can be stationary. Therefore, the operability by the worker can be improved.

  In the nozzle replacement jig, the nozzle is made of a magnetic material, and the switching mechanism includes a nozzle holding part having a plurality of magnet members each magnetically coupled to a part of each nozzle, and the nozzle holding part includes The state can be changed between a first magnetic state in which the magnet member is magnetically coupled to a part of the nozzle to form the first state, and a second magnetic state in which the magnetic coupling is released to form the second state. It is desirable that

  According to this nozzle replacement jig, it is possible to switch between the first state and the second state using magnetic coupling using the magnet member. Therefore, the structure of the switching mechanism can be simplified and the workability can be further improved.

  A nozzle replacement system according to another aspect of the present invention includes a nozzle stocker that can accommodate a plurality of electronic component suction nozzles in a predetermined arrangement pattern, the nozzle replacement jig, the operation of the nozzle stocker, and the nozzle. An interlocking mechanism for interlocking with the operation of the replacement jig, and a nozzle replacement system in which a plurality of the nozzles are transferred from at least the nozzle replacement jig to the nozzle stocker, wherein the nozzle stocker The state can be changed between a plurality of nozzle accommodation holes arranged in an arrangement pattern, a support state in which each of the plurality of nozzles is accommodated in the nozzle accommodation hole, and a release state in which the support is released. A support mechanism, and the interlock mechanism is configured to switch from the first state to the second state by the switching mechanism, and to solve the solution by the support mechanism. Interlocking the state change from state to the support state.

  According to this nozzle replacement system, the switching from the first state to the second state and the state change from the released state to the support state are synchronized by the interlocking mechanism. For this reason, the delivery of the nozzle from the nozzle replacement jig to the nozzle stocker can be reliably performed. If the switching mechanism is in the second state and the support mechanism is in the released state, the delivery of the nozzle may not be reliably performed. In this case, the state in which the nozzle is held halfway by the nozzle replacement jig is continued, and when an operator lifts the nozzle replacement jig, the nozzle falls into the mounting machine. There is a case. According to the above configuration, occurrence of such a problem can be avoided.

  A nozzle replacement system according to still another aspect of the present invention includes a nozzle stocker that can accommodate a plurality of electronic component suction nozzles in a predetermined arrangement pattern, the nozzle replacement jig, the operation of the nozzle stocker, and the An interlocking mechanism for interlocking with the operation of the nozzle replacement jig, and at least a plurality of the nozzles are transferred from the nozzle replacement jig to the nozzle stocker, wherein the nozzle stocker A plurality of nozzle housing holes arranged in an arrangement pattern of the plurality of nozzles, and a plurality of support portions capable of supporting a part of each nozzle, wherein the plurality of nozzles are housed in the nozzle housing holes. And a shutter member that can be repositioned between a support position that is supported by and a release position that releases the support by the support part, and the interlocking mechanism , A position change to the second position from the first position of the nozzle holder, is interlocked with the position changes to the support position from the release position of the shutter member.

According to this nozzle replacement system, the position change from the first position to the second position and the position change from the release position to the support position are synchronized by the interlocking mechanism. For this reason, the delivery of the nozzle from the nozzle replacement jig to the nozzle stocker can be reliably performed.

Claims (7)

In a nozzle stocker capable of accommodating a plurality of nozzles for electronic component adsorption in a predetermined arrangement pattern, a nozzle replacement jig used for accommodating the nozzles,
A main body having a plurality of positioning portions for positioning the plurality of nozzles in a non-fixed manner in an arrangement state corresponding to the arrangement pattern in the nozzle stocker;
A switching mechanism for switching between a first state in which the nozzle is held in the positioning unit and a second state in which the holding is released;
A nozzle replacement jig comprising The nozzle replacement jig according to claim 1,
The switching mechanism is a nozzle replacement jig that collectively switches between the first state and the second state for a plurality of the nozzles. The nozzle replacement jig according to claim 2,
The switching mechanism includes a nozzle holding portion having a plurality of engaging portions each engageable with a part of each nozzle.
The nozzle holding portion includes a first position where the engagement portion engages with a part of the nozzle to form the first state, and a second position where the engagement is released to form the second state. Nozzle replacement jig that can be repositioned between. In the nozzle replacement jig according to claim 3,
The nozzle holding part changes position between the first position and the second position by sliding relative to the main body part,
The switching mechanism further includes:
A guide portion for guiding the sliding movement of the nozzle holding portion;
A first maintenance mechanism that maintains the first state by stopping the nozzle holding portion at the first position;
And a second maintenance mechanism that maintains the second state by causing the nozzle holding portion to remain stationary at the second position. The nozzle replacement jig according to claim 2,
The nozzle is made of a magnetic material,
The switching mechanism includes a nozzle holding portion having a plurality of magnet members each magnetically coupled to a part of each nozzle,
The nozzle holding part includes a first magnetic state in which the magnet member is magnetically coupled to a part of the nozzle to form the first state, and a second magnetic state in which the magnetic coupling is released to form the second state. Nozzle replacement jig that can change the state between. A nozzle stocker capable of accommodating a plurality of electronic component suction nozzles in a predetermined arrangement pattern;
The nozzle replacement jig according to any one of claims 1 to 5,
An interlocking mechanism that interlocks the operation of the nozzle stocker and the operation of the nozzle replacement jig;
A nozzle replacement system in which a plurality of the nozzles are transferred from at least the nozzle replacement jig to the nozzle stocker,
The nozzle stocker is
A plurality of nozzle housing holes arranged in the predetermined arrangement pattern;
A support mechanism that supports each of the plurality of nozzles in a state of being accommodated in the nozzle accommodation hole, and a support mechanism that is changeable between a release state in which the support is released, and
The interlocking mechanism is a nozzle replacement system that interlocks the switching from the first state to the second state by the switching mechanism and the state change from the released state to the supporting state by the support mechanism. A nozzle stocker capable of accommodating a plurality of electronic component suction nozzles in a predetermined arrangement pattern;
A nozzle replacement jig according to claim 3 or 4,
An interlocking mechanism that interlocks the operation of the nozzle stocker and the operation of the nozzle replacement jig;
A nozzle replacement system in which a plurality of the nozzles are transferred from at least the nozzle replacement jig to the nozzle stocker,
The nozzle stocker is
A plurality of nozzle housing holes arranged in the predetermined arrangement pattern;
A plurality of support portions capable of supporting a part of each nozzle; a support position for supporting each of the plurality of nozzles in the state of being accommodated in the nozzle accommodation hole; and the support by the support portion. A shutter member that can be repositioned between a release position to be released, and
The interlocking mechanism is a nozzle replacement system that interlocks the position change of the nozzle holding portion from the first position to the second position and the position change of the shutter member from the release position to the support position.

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