JP2013080855A - Bulk feeder, case changer, and chip mounter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bulk feeder which is suitable for automatically replacing a case.SOLUTION: A bulk feeder 20 inserts a case 25 in which components are housed into a front end port of a case attachment passage 21a and moves the case 25 rearward thereby forcibly pushing the case 25 held at a predetermined holding position of the case attachment passage 21a to a predetermined ejection position and dropping the case 25 through a case ejection hole 21c. Further, the bulk feeder 20 holds the case 25 in which the components are housed at the predetermined holding position of the case attachment passage 21a.

Description

  The present invention relates to a bulk feeder provided with a detachable case for storing parts, a case changer for automatically replacing the case of the bulk feeder, and a chip mounter provided with a case changer for the bulk feeder.

  Patent Document 1 discloses a bulk feeder including a rotatable rotor and a detachable component housing case. The rotor has a permanent magnet that moves in a predetermined circular orbit when the rotor rotates. On the other hand, the case includes a storage chamber for storing a large number of parts in a bulk state (separated state), an arc-shaped guide groove formed along the predetermined circular path on the inner surface of the side wall of the storage chamber, It has an arcuate supply passage formed so as to be continuous with the guide groove along the predetermined circular path, and an outlet opening of an upper surface opening provided at an end of the supply passage.

  This bulk feeder guides the components in the storage chamber by the magnetic force of the permanent magnet by attaching the component-stored case so that its guide groove and supply passage face the permanent magnet moving along the predetermined circular orbit and rotating the rotor. Suction into the groove, the sucked part is accommodated in the guide groove and moved, the part moving in the guide groove is taken into the supply passage and moved, and the part moving in the supply passage is supplied to the outlet Demonstrate the function.

  The bulk feeder is a chip mounter (component mounting device) that selectively takes out necessary components from a plurality of feeders (component feeders) arranged side by side on a feeder table by a nozzle head and mounts them on a component mounting target such as a substrate. Very useful. In other words, if the bulk feeder is used as at least one of the feeders, the intended parts can be replenished by exchanging only the case with the parts-contained case for the bulk feeder where the number of remaining parts is zero or small. It can be done easily.

  By the way, the case replacement is either manual or automatic. However, in the case of automatic, the case replacement can be performed in a timely and quick manner, so the time loss associated with the case replacement is avoided and the cost is reduced compared to the manual replacement. Can be planned. That is, if a bulk feeder suitable for automatically performing the case exchange is obtained, and a case changer suitable for automatically performing the case exchange of the bulk feeder is obtained, it is installed on the feeder table of the chip mounter. Bulk feeder case replacement can be performed in a timely and prompt manner.

Japanese Patent No. 4610647

  An object of the present invention is to provide a bulk feeder suitable for automatically performing case exchange, a case changer suitable for automatically performing case exchange of the bulk feeder, and case exchange of a bulk feeder installed on a feeder table. It is an object of the present invention to provide a chip mounter that can perform timely and promptly.

  In order to achieve the above object, a bulk feeder according to the present invention includes a rotatable rotor and a detachable case for storing components, and (a1) the rotor moves at least in a predetermined circular orbit when the rotor rotates. (A2) The case includes a storage chamber for storing a large number of parts in a bulk state, and a circle formed on the inner surface of the side wall of the storage chamber along the predetermined circular path. An arc-shaped guide groove, an arc-shaped supply passage formed so as to be continuous with the guide groove along the predetermined circular path, and a top opening opening provided at an end of the supply passage. A bulk feeder, further comprising a case attachment passage, a case holding means, a case exposure port, and a case discharge port; (a3) the case attachment passage from one end of the case; Inserted in the specified direction (A4) The case holding means is arranged so that the guide groove and the supply passage face the permanent magnet that moves along the predetermined circular path. (A5) The case exposure port is provided on the upper surface of the case mounting passage so as to expose the outlet of the case held at the predetermined holding position. (A6) The case discharge port is a lower surface on the rear end side of the predetermined holding position of the case mounting passage in order to drop the case forcedly pushed from the predetermined holding position into the predetermined discharging position. It is characterized by being formed.

  The case changer according to the present invention is a case changer for exchanging a case held in the case attachment passage of the bulk feeder with a case in which a part is stored. The case changer includes a case stocker, a case changer, and a case changer. A transporter, an insertion guide, and a case insertion machine; (b1) the case stocker stores a plurality of the parts-stored cases; and (b2) the case transporter is installed in the case stocker. (B3) The insertion guide has been stored in the predetermined insertion standby position, and has a mechanism for transferring one of the parts storage cases stored in the storage to a predetermined insertion standby position in a predetermined direction. The case is guided from the predetermined standby position toward the one end opening in the predetermined direction, and (b4) the case insertion machine is A mechanism for extruding a case in which the parts have been transported to the insertion standby position from the one end of the insertion guide to the outside along the insertion guide, and the case changer is a predetermined unit that is extruded from the one end of the insertion guide. The feature is that one end of the insertion guide is used facing one end of the case attachment passage so that a case in which the parts are stored in the direction can be inserted into one end of the case attachment passage of the bulk feeder. To do.

  Furthermore, a chip mounter according to the present invention is a chip mounter that selectively takes out necessary components from a plurality of feeders installed on a feeder table by a nozzle head and mounts them on a component mounting target such as a substrate. The bulk feeder according to claim 1 is used as at least one, and the case changer according to claim 2 corresponding to the bulk feeder has one end of an insertion guide of the case feeder passage of the bulk feeder. The chip mounter is installed facing one end of the chip, and the chip mounter includes (c1) means for managing the remaining number of parts of the bulk feeder, and (c2) the remaining number of parts of the bulk feeder is zero or a predetermined lower limit. When the value is reached, the case changer is allowed to perform a predetermined case replacement operation, and the case changer insertion guide A case in which a part stored in a predetermined direction pushed out from one end of the case is inserted into one end of the case attachment passage of the bulk feeder and the case held at a predetermined holding position of the case attachment passage is forced to a predetermined discharge position. And a means for holding the case in which the components are stored at a predetermined holding position of the case mounting passage.

  According to the bulk feeder according to the present invention, the case that is held at the predetermined holding position of the case mounting path is discharged by inserting the case in which the parts are stored into one end of the case mounting path and moving the case toward the other end. The case can be forcibly pushed into the position and dropped through the case discharge hole, and the case in which the parts are stored can be held at a predetermined holding position of the case mounting passage. In other words, by simply inserting the case in which the parts are stored in one end of the case mounting passage in a predetermined direction, the case in which the remaining number of parts is zero or small can be replaced and recovered with the parts stored case. Very suitable for automatic case exchange.

  Further, according to the case changer according to the present invention, the parts stored case stored in the case stocker is transported to the insertion standby position by the case transporter, and the parts stored case is inserted into one end of the insertion guide by the case inserter. Can be extruded in a predetermined direction. That is, if the case changer is arranged with one end of the insertion guide facing one end of the case attachment passage of the bulk feeder, the case in which the parts stored in a predetermined direction pushed out from the one end of the insertion guide are stored in the bulk changer. Since it can be inserted into one end of the case attachment passage of the feeder, it is extremely suitable for automatically changing the case of the bulk feeder.

  Further, according to the chip mounter according to the present invention, the remaining number of parts of the bulk feeder installed on the feeder table is checked, and the remaining number of parts is zero or the bulk feeder having a predetermined lower limit value. Case change can be performed using a case changer. That is, the case replacement of the bulk feeder installed on the feeder table can be performed in a timely and prompt manner.

  The above object and other objects, structural features, and operational effects of the present invention will become apparent from the following description and the accompanying drawings.

FIG. 1 is a top view of the chip mounter with partial omission. FIG. 2 is a block diagram of the control system of the chip mounter shown in FIG. FIG. 3 is an enlarged top view of the bulk feeder shown in FIG. 4 is a longitudinal sectional view taken along line S1-S1 of FIG. FIG. 5 is a left side view of the bulk feeder excluding the case from FIG. 4. FIG. 6 is a left side view of the rotor shown in FIGS. 3 and 5. FIG. 7 is a left side view of the case shown in FIG. FIG. 8 is a right side view of the case shown in FIG. FIG. 9 is a top view of the case shown in FIG. FIG. 10 is a longitudinal sectional view taken along line S2-S2 of FIG. FIG. 11 is a right side view of one plate constituting the case shown in FIG. FIG. 12 is a left side view of the other plate constituting the case shown in FIG. FIG. 13A to FIG. 13C are diagrams showing the shapes of parts that can be supplied by the bulk feeder. 14A to 14D are diagrams showing the dimensional relationship between the arc groove of the other plate and the components shown in FIG. FIG. 15 is an explanatory diagram of the operation of the bulk feeder. FIG. 16 is an operation explanatory diagram of the bulk feeder. FIG. 17 is an operation explanatory diagram of the bulk feeder. FIG. 18 is an operation explanatory diagram of the bulk feeder. FIG. 19 is an enlarged left side view of the case changer shown in FIG. FIG. 20 is a flowchart of the preparation process. FIG. 21 is a flowchart of the mounting process. FIG. 22 is a flowchart of the exchange process. FIG. 23 is an explanatory diagram of the operation of the case changer according to the preparation process. FIG. 24 is an explanatory diagram of the operation of the case changer according to the preparation process. FIG. 25 is an explanatory diagram of the operation of the case changer according to the preparation process. FIG. 26 is an explanatory diagram of the operation of the case changer according to the replacement process. FIG. 27 is an explanatory diagram of the operation of the case changer according to the exchange process. FIG. 28 is an explanatory diagram of the operation of the case changer according to the replacement process.

  In the following description, for convenience of explanation, the left, right, bottom, top, front, and back in FIG. 1 are referred to as front, back, left, right, top, and bottom, respectively, and the directions corresponding to these in the other drawings are the same. Called.

<Configuration of chip mounter>
As shown in FIG. 1, the chip mounter 10 includes a main table 11, a board carry-in / out conveyor 12 provided on the main table 11, and a component mounting nozzle head 13 having a suction nozzle (not shown). And a nozzle head drive mechanism (not shown) for moving the nozzle head 13 back and forth, and right and left, and a feeder table 14. A total of 13 bulk feeders 20 are arranged in parallel on the feeder table 14. A total of 13 case changers 30 corresponding to each bulk feeder 20 are arranged in parallel between the feeder table 14 and the main table 11. The feeder table 14 is formed with a case dropping port 14a having a slightly larger front-rear dimension than the front-rear dimension of the case discharge port 21c (see FIGS. 3 to 5) in accordance with the installation position of the bulk feeder 20. Yes. The SU is a board to be mounted with components and is carried in and out by the conveyor 12.

  Although the number of bulk feeders 20 is 13 in the drawing, there is no particular limitation on the number. Moreover, although only the bulk feeder 20 is installed on the feeder table 14, it may be installed on the feeder table 14 together with another feeder, for example, a known tape feeder. In this case, the bulk feeder 20 The number may be 1. Furthermore, although the substrate SU is shown as the component mounting target, the component mounting target may be other than the substrate SU.

  The chip mounter 10 has the control system shown in FIG. The input device includes a keyboard, a display, and the like, and is used for registering various data in the memory of the control circuit. The conveyor drive circuit sends a drive signal to the actuator of the conveyor drive mechanism based on the control signal from the control circuit. The carry-in / out detection circuit detects the carry-in and carry-out of the substrate SU based on the operation signal from the conveyor drive mechanism, and sends the detection signal to the control circuit. The nozzle head drive circuit sends a drive signal to the actuator of the nozzle head drive mechanism based on the control signal from the control circuit. The mounting detection circuit detects the completion of mounting based on the operation signal from the nozzle head driving mechanism, and sends the detection signal to the control circuit. The feeder drive circuit sends a drive signal to an actuator of the feeder drive mechanism (see motor 23, see FIGS. 3 to 5) based on a control signal from the control circuit. The changer drive circuit sends a drive signal to actuators (described later, motors 33a and 34a, see FIG. 19) of the changer drive mechanism based on a control signal from the control circuit. The replacement detection circuit detects the completion of replacement of the case 25 (see FIGS. 7 to 10) based on the operation signal from the changer drive mechanism, and sends the detection signal to the control circuit.

<Configuration and operation of bulk feeder>
As shown in FIGS. 3 to 5, the bulk feeder 20 includes a frame 21, a rotor 22, a motor 23, an endless belt 24, and a case 25. Incidentally, the + mark shown in FIGS. 3 to 5 indicates the rotation center of the rotor 22 or a position corresponding to the rotation center in the case 25 (the same applies to FIGS. 6 to 28).

  The frame 21 fixes the case attachment passage 21a, the case exposure port 21b, the case discharge port 21c, the case holding projection 21d, the rotor arrangement hole 21e, the rotor shaft support hole 21f, and the frame 21 to the feeder table 14. A locking mechanism (not shown).

  The left and right dimensions of the case mounting passage 21 a are slightly larger than the left and right dimensions of the case 25, and the vertical dimension is slightly larger than the vertical dimension of the case 25. In addition, belt-like plates 21a1 and 21a2 for preventing the case 25 from falling out from the case attachment passage 21a to the left side are provided on the upper left side and the lower left side of the case attachment passage 21a, and both of the belt-like plates 21a1 and 21a2 are provided. There is an opening (not indicated) for confirming the inside of the case attachment passage 21a along the case attachment passage 21a. Further, the left end port of the case mounting passage 21a is used as a case insertion port, and inclined surfaces 21a3 and 21a4 for guiding the insertion of the case 25 into the case mounting passage 21a are provided at the front ends of the upper surface and the lower surface. Is provided. That is, the case attachment passage 21a has a mode in which the case 25 inserted in a predetermined direction from the left end port can be moved toward the right end while keeping the same direction.

  The case exposure port 21b is for exposing the outlet 25g of the case 25 held at a predetermined holding position of the case attachment passage 21a and a part of the outer peripheral surface of the rotor 22, and is formed through the upper surface of the case attachment passage 21a. Has been.

  The case discharge port 21c is for dropping the case 25 that has been forcibly pushed from the predetermined holding position into the predetermined discharge position, and is formed penetrating to the rear side of the predetermined holding position on the lower surface of the case mounting passage 21a. Yes. The left and right dimensions of the case discharge port 21 c are the same as the left and right dimensions of the case mounting passage 21 a, and the front and rear dimensions are slightly larger than the front and rear dimensions of the case 25.

  The case holding protrusions 21d are for holding the case 25 at a predetermined holding position of the case mounting passage 21a, and two case holding protrusions 21d are provided corresponding to the predetermined holding positions on the lower surface of the case mounting passage 21a. Each case holding projection 21d has a structure in which a pin having a hemispherical upper end is spring-biased upward, and the case 25 is fitted into the two positioning holes 25h of the case 25, whereby the case 25 is inserted into the case mounting passage. It plays the role of holding at the predetermined holding position 21a.

  The rotor arrangement hole 21e is formed in the bottom surface (right surface) of the case mounting passage 21a, and its diameter is slightly larger than the diameter of the rotor 22, and the depth (left-right dimension) is the thickness of the rotor 22 (left-right dimension). Slightly larger than.

  The rotor shaft support hole 21f rotatably supports the rotor shaft 22a, and is formed through the center of the bottom surface of the rotor arrangement hole 21e. Although not shown, the rotor shaft support hole 21f is provided with a rotation guide such as a bearing and a bush on the same axis.

  As shown in FIG. 6, the rotor 22 is formed of a disk having a predetermined diameter and thickness (right and left dimensions), and a rotor shaft 22a is provided at the center of the right surface. Further, on the outer peripheral portion of the left surface of the rotor 22, a total of eight permanent magnets 22b having a columnar shape are positioned on a virtual circle VC coaxial with the rotor shaft 22a and each left surface is the rotor 22. It is embedded at a predetermined angular interval so as to be exposed in a substantially flush state with the left surface of the. Incidentally, the permanent magnet 22b preferably has a surface magnetic force of 2000 to 4000 Gauss.

  Although the number of permanent magnets 22b is 8 in the drawing, the number may be 9 or more, or 7 or less, or 1 when the rotational speed of the rotor 22 is high. Moreover, the polarities on the left surface side of the permanent magnets 22b may be the same, alternately different, or randomly different, and the arrangement interval is not necessarily an equiangular interval. Further, although the permanent magnets 22b are embedded in the outer peripheral portion of the left surface of the rotor 22, the permanent magnets 22b may be embedded in the outer peripheral portion of the right surface of the rotor 22 so as not to be exposed on the left surface of the rotor 22. .

  The rotor 22 is disposed in the rotor arrangement hole 21e of the frame 21, and the rotor shaft 22a is inserted into the rotor shaft support hole 21f of the frame 21, so that the rotor 22 can rotate about the axis of the rotor shaft 22a. If the left surface of the rotor 22 arranged in the rotor arrangement hole 21e protrudes from the bottom surface (right surface) of the case attachment passage 21a, the case 25 inserted into the case attachment passage 21a is caught. The left surface of the rotor 22 disposed in 21e is slightly retracted from the bottom surface (right surface) of the case mounting passage 21a.

  The motor 23 is fixed to the right surface of the frame 21, and an endless belt 24 is wound around the right protruding portion of the motor shaft 23 a and the rotor shaft 22 a of the rotor 22. That is, by rotating the motor shaft 23a of the motor 23, the rotor 22 can be rotated and the permanent magnet 22b can be moved along a predetermined circular orbit (a circular orbit according to the virtual circle VC).

  In the drawing, the endless belt 24 is directly wound around the motor shaft 23a and the rotor shaft 22a. However, a pulley may be fixed to each of the motor shaft 23a and the rotor shaft 22a, and the endless belt 24 may be wound around the pulley.

  As shown in FIGS. 7 to 10, the case 25 is composed of two plates 25a and 25b and a stopper bar 25c coupled to each other, and has a predetermined left-right dimension, front-rear dimension, and vertical dimension. It has a rectangular parallelepiped shape.

  The case 25 includes a storage chamber 25d for storing a large number of parts (see FIG. 13 for the shape) in a bulk state (separated state), and a predetermined circle of the permanent magnet 22b on the left side of the right wall of the storage chamber 25d. An arcuate guide groove 25e formed at an angle of about 150 degrees from bottom to top along the track, and from bottom to top along the predetermined circular track of the permanent magnet 22b continuously with the guide groove 25e. An arcuate supply passage 25f formed at an angle of about 30 degrees toward the upper surface, an outlet 25g of an upper surface opening provided at an end portion (front end) of the supply passage 25f, and each case holding projection 21d of the frame 21 Each have two positioning holes 25h to be fitted. Although not shown in the drawings, a part insertion port leading to the storage chamber 25d is formed on the left surface of the case 25, and the component insertion port is closed by a lid, a seal, or the like after the components are stored in the storage chamber 25d. It is.

  If one plate 25a is described with reference to FIG. 11, a recess CP for forming a storage chamber 25d is formed on the right surface of the plate 25a. The depression CP includes a first arc surface CPa having a predetermined curvature radius, a second arc surface CPb having a smaller radius of curvature than the first arc surface CPa, a lower end of the first arc surface CPa, and a lower end of the second arc surface CPb. , A second flat surface CPd connecting the upper end of the first arc surface CPa and the upper end of the second arc surface CPb, and a bottom surface (left surface) CPe. Incidentally, the component input port described above is formed on the bottom surface of the depression CP.

  Referring to FIG. 12, the other plate 25b will be described. On the left surface of the plate 25b, an arc groove GR of about 180 degrees is formed to form the guide groove 25e and the supply passage 25f. A front and rear linear groove (no reference) is continuously formed at the front end, and a cylindrical or prismatic stopper bar 25c is fitted into the linear groove. Incidentally, the radius of curvature at the center in the width direction of the circular arc groove GR substantially matches the radius of the virtual circle VC shown in FIG. Further, a notch CR in the left-right direction for forming the outlet 25g is formed on the upper surface of the plate 25b so as to reach the arc groove GR, and the upper surface portion of the arc groove GR opened by the notch CR ( (Excluding the rear end of the stopper bar 25c) is a substantial outlet 25g. Incidentally, GRa in the figure is the outer arc surface of the arc groove GR, GRb is the inner arc surface of the arc groove GR, and the radius of curvature of the outer arc surface GRa is the curvature of the first arc surface CPa of the recess CP shown in FIG. It is smaller than the radius.

  The connection between one plate 25a and the other plate 25b is performed by various means such as adhesive, screwing, and concave / convex fitting, and the right surface of one plate 25a and the left surface of the other plate 25b are brought into surface contact by the connection. Or it will be in the state near this. Specifically, as shown in FIG. 10, the opening of the depression CP of the plate 25a is covered with the left surface of the plate 25b to form a storage chamber 25d. The upper portion of the arc groove GR of the plate 25b is covered with the right surface of the plate 25a to form a supply passage 25f having an inlet 23f1, and the uncovered portion serves as a guide groove 25e. Further, the opening of the straight groove into which the stopper rod 25c is fitted is covered with the right surface of the plate 25a, and the dropout is prevented. Further, the left opening of the notch CR in the plate 25b is covered by the right surface of the plate 25a. Furthermore, since the radius of curvature of the first arc surface CPa of the recess CP shown in FIG. 11 is larger than the radius of curvature of the outer arc surface GRa of the arc groove GR shown in FIG. The flat surfaces FP1 and FP2 which are part of the left surface of the plate 25b are present.

  Here, the shapes of the parts that can be supplied by the bulk feeder 20 will be described with reference to FIG. 13, and then the dimensions of the arc groove GR of the other plate 25b and the parts shown in FIG. The relationship will be described, and subsequently, the component supply operation of the bulk feeder 20 will be described with reference to FIGS.

  The part PA1 shown in FIG. 13A has a substantially rectangular parallelepiped shape having a dimensional relationship of length L1> width W1 = height H1, and the part PA2 shown in FIG. 13B has a length L2> width W2. > A substantially rectangular parallelepiped shape having a dimensional relationship of height H2, and the part PA3 shown in FIG. 13C has a substantially cylindrical shape having a dimensional relationship of length L3> diameter R3.

  Typical examples of these components PA1 to PA3 are electronic components such as small chip capacitors and chip registers whose lengths L1 to L3 are 1.6 mm, 1.0 mm, 0.6 mm, 0.4 mm, etc. In general, in addition to having an external electrode containing a material belonging to a ferromagnetic material, and depending on the type, it has an internal conductor containing a material belonging to a ferromagnetic material, so that attraction by the magnetic force of the permanent magnet 22b of the rotor 22 is possible. .

  In addition, as long as it is a component of the same shape that can be attracted by the magnetic force of the permanent magnet 22b, components other than electronic components can be supplied, and the shapes shown in FIGS. 13 (A) to 13 (C). A part having a shape similar to the above, a part having a spherical shape, or the like can also be supplied.

  The arc groove GR shown in FIG. 14A corresponds to the part PA1, and the width Wg and the depth Dg of the arc groove GR are slightly larger than the width W1 or the height H1 of the part PA1 and are diagonally opposed to the end face. It is smaller than the dimension D1 and the length L1. As shown by the broken line, the arc groove GR can accommodate the component PA1 so as to be movable in a length direction in which the surfaces of the width or height are substantially aligned.

  The arc groove GR shown in FIG. 14B corresponds to the part PA1, and the width Wg and the depth Dg of the arc groove GR are slightly larger than the end face diagonal dimension D1 of the part PA1 and from the length L1. Is also small. As indicated by the broken line, the arc groove GR can accommodate the component PA1 so as to be movable in the length direction regardless of the direction of the width and height.

  The arc groove GR shown in FIG. 14C corresponds to the part PA2, and the width Wg of the arc groove GR is slightly larger than the height H2 of the part PA2 and smaller than the width W2, and the depth Dg is It is slightly larger than the width W2. As indicated by the broken line, the arc groove GR can accommodate the component PA2 so as to be movable in a length direction in which surfaces of width and height are substantially aligned.

  The arc groove GR shown in FIG. 14D corresponds to the part PA3, and the width Wg and the depth Dg of the arc groove GR are slightly larger than the diameter R3 of the part PA3 and smaller than the length L3. As indicated by the broken line, the arc groove GR can accommodate the part PA3 so as to be movable in the length direction.

  In addition, when supplying parts having a shape similar to the shape shown in FIGS. 13A to 13C, spherical parts, or the like, these parts can be accommodated so as to be movable in a predetermined direction. An arc groove GR may be employed.

  FIG. 15 shows a case 25 in which a large number (30,000 to 70,000) of the part PA1 shown in FIG. 13A is stored in the storage chamber 25d having the arc groove GR shown in FIG. The state hold | maintained in the predetermined holding position of the case attachment channel | path 21a is shown. In this state, the left surface of the rotor 22 faces the right surface of the case 25 substantially in parallel through a slight gap, and the rotation center of the rotor 22 is the center in the width direction of the arc groove GR (the guide groove 25e and the supply passage 25f). Is substantially coincident with the center of curvature radius.

  In this state, when the rotor 22 is rotated counterclockwise in FIG. 15 at a predetermined speed, as shown in FIG. 16, the permanent magnet 22b remains in the state of facing the guide groove 25e and the supply passage 25f in a predetermined circular orbit. The plurality of parts PA1 in the storage chamber 25d are attracted to the guide groove 25e by the magnetic force of the permanent magnet 22b, and the plurality of attracted parts PA1 move upward along the guide groove 15 while remaining in a lump. It reaches the inlet 25f1 of the supply passage 25f. In this process, at least one of the plurality of parts PA1 is accommodated in the guide groove 25e in the length direction together with the part fine movement accompanying the movement.

  Then, as shown in FIG. 17, the part PA1 moving in the length direction in the guide groove 25e is taken into the supply passage 25f through the inlet 25f1, and the part not accommodated in the length direction in the guide groove 25e. PA1 comes into contact with the second flat surface CPd of the depression CP shown in FIG. 11, and the permanent magnet 22b passes the right side of the inlet 25f1 and drops downward when the attractive force is reduced.

  Then, as shown in FIG. 18, the part PA1 moving in the length direction in the supply passage 25f comes into contact with the rear end of the stopper bar 25c and is supplied to the take-out port 25g. Since the rotor 22 is continuously rotated, a plurality of parts PA1 are connected to the rear side of the leading part PA1 in contact with the rear end of the stopper bar 25c.

  In addition, although the case where the part PA1 shown in FIG. 13 (A) is housed in the case 25 having the arc groove GR shown in FIG. 14 (A) is described as an example, the part feeding operation of the bulk feeder 20 has been described. When the part PA1 shown in FIG. 13 (A) is stored in the case 25 having the arc groove GR shown in FIG. 14 (B), the part PA2 shown in FIG. 13 (B) is shown in FIG. 14 (C). 13A when the component PA3 shown in FIG. 13C is housed in the case 25 having the arc groove GR shown in FIG. 14D. ) To a part similar to the shape shown in FIG. 13C, a spherical part, etc. (A) to a part similar to the shape shown in FIG. 1C, a spherical part, etc. Was stored in a case 25 having an arc groove GR adapted to these parts. In case, you can realize the same component supply operation.

  In short, by simply changing the width Wg and depth Dg of the arc groove GR in accordance with the size and shape of the part, a case 25 having a single size (left-right dimension, front-rear dimension, and vertical dimension) common to various parts can be obtained. it can. Further, since the case 25 is replaceably attached to the bulk feeder 20, various parts are supplied by the single bulk feeder 10 in the same manner as described above by replacing the case 25 with a case 25 corresponding to another part. be able to.

《Case changer configuration》
As shown in FIG. 19, the case changer 30 includes a base plate 31, a case stocker 32, a case transporter 33, a case inserter 34, and an insertion guide 35.

  The base plate 31 has a vertical guide hole 31 a for the case transporter 33 and a front-rear guide hole 31 b for the case insertion machine 34.

  The case stocker 32 has a pair of front and rear stocker plates 32a and 32b. Each stocker plate 32a and 32b includes first plate-like portions 32a1 and 32b1, second plate-like portions 32a2 and 32b2 bent about 90 degrees from the edges of the first plate-like portions 32a1 and 32b1, and second plate-like portions. The first plate-like portions 32a1 have a third plate-like portion 32a3 and 32b3 bent about 90 degrees from the edges of the 32a2 and 32b2, and are substantially line symmetrical with a space in the front-rear direction. And 32b1 are fixed to the left surface of the base plate 31. The left and right dimensions of the inner surfaces of the second plate portions 32a2 and 32b2 of the stocker plates 32a and 32b are slightly larger than the left and right dimensions of the case 25, and the distance between the inner surfaces of the second plate portions 32a2 and 32b2 is the front and rear dimension of the case 25. Slightly larger than. Further, the upper end position of the rear stocker plate 32a is lower than the upper end position of the front stocker plate 32b because the guide roller 35b of the insertion guide 35 is disposed. That is, a plurality of cases 25 are formed by the inner surfaces of the second plate-like portions 32a2 and 32b2 of both stocker plates 32a and 32b, the inner surfaces of the third plate-like portions 32a3 and 32b3 of both stocker plates 32a and 32b, and the left surface of the base plate 31. An area is defined that can be stacked and stored in a state where it can be moved in a predetermined direction and in a vertical direction (in this case, a part that has already been stored).

  The case transporter 33 includes a motor 33a fixed to the right surface of the base plate 31, a pulley 33c fixed to the motor shaft 33b, and a first rotationally disposed on the right surface of the base plate 31 so as to be positioned above the pulley 33c. 2 pulley 33d, an endless belt 33e wound around both pulleys 33c and 33d, and a transport pusher 33f fixed to the endless belt 33e through the guide hole 31a. The transport pusher 33f is a stocker of the case stocker 32. It arrange | positions so that it can move to the up-down direction between the plates 32a and 32b. That is, by rotating the motor shaft 33b of the motor 33a and rotating the endless belt 33e, the transport pusher 33f can be moved in the vertical direction along the guide hole 31a.

  The case insertion machine 34 includes a motor 34a fixed to the right surface of the base plate 31, a pulley 34c fixed to the motor shaft 34b, and a first rotationally disposed on the right surface of the base plate 31 so as to be located behind the pulley 34c. 2 pulley 34d, an endless belt 34e wound around both pulleys 34c and 34d, and an insertion pusher 34f fixed to the endless belt 34e through the guide hole 31b. The insertion pusher 34f is a guide for the insertion guide 35. It arrange | positions so that it can move to the front-back direction between the plate 35a and the guide roller 35b. That is, by rotating the motor shaft 34b of the motor 34a and rotating the endless belt 34e, the insertion pusher 34f can be moved in the front-rear direction along the guide hole 31b.

  The insertion guide 35 has an upper guide plate 35a and a lower guide roller 35a. The guide plate 35a is bent about 90 degrees from the first plate-like part 35a1, the second plate-like part 35a2 bent about 90 degrees from the edge of the first plate-like part 35a1, and the edge of the second plate-like part 35a2. The first plate-like part 35a1 is fixed to the left surface of the base plate 31 with a gap in the vertical direction with respect to the guide roller 35a. The guide roller 35a is composed of a total of three rollers arranged rotatably on the left surface of the base plate 31 and arranged in the front-rear direction. The left and right dimensions of the inner surface of the second plate portion 35a2 of the guide plate 35a are slightly larger than the left and right dimensions of the case 25, and the distance between the inner surface of the second plate portion 35a2 and the upper surface height of the guide roller 35a (roller group) is It is slightly larger than the vertical dimension of the case 25. Further, the upper surface height position of the guide roller 35a (roller group) substantially coincides with the upper end position of the front stocker plate 32b of the case stocker 32, and the frontmost roller in the roller group is the rear stocker plate 32a. It is located above the upper end of the first plate-like portion 32a1. That is, the inner surface of the second plate-shaped portion 35a2 of the guide plate 35a, the inner surface of the third plate-shaped portion 35a3 of the guide plate 35a, the upper surface of the guide roller 35a (roller group), and the left surface of the base plate 31 wait for predetermined insertion. A guide region (no symbol) is defined in which the case 25 located at the position can be moved rearward in a predetermined direction, and the rear end port of the guide region is used as a case extrusion port.

  The operation of the case changer 30 will be described in detail later in the section “Operation of the chip mounter”.

<Operation of chip mounter>
Hereinafter, the component mounting operation of the chip mounter 10 will be described in accordance with the chip mounter 10 shown in FIG. 1 with reference to FIGS. .

  First, as shown in FIG. 20, as a preparation process, the bulk feeder 20 is installed (step SP11), the case changer 30 is installed (step SP12), various data is registered (step SP13), and the case changer 30 is used. The case 25 is inserted into the bulk feeder 20 (step SP14).

  As shown in FIGS. 1 and 19, the “feeder installation” in step SP11 is to install a total of 13 bulk feeders 20 in which the case 25 is not attached to the case attachment passage 21 a on the feeder table 14. To do. Since the installation position of the bulk feeder 20 on the feeder table 14 is determined in advance by positioning means such as ribs and pins, each bulk feeder 20 can be installed by placing and fixing the bulk feeder 20 at the installation position. The case discharge port 21c of each bulk feeder 20 after installation is located on the case drop port 14a of the feeder table 14, and the case 25 dropped through the case discharge port 21c can pass through the case drop port 14a. .

  As shown in FIG. 1 and FIG. 19, “changer installation” in step SP12 is performed by connecting a total of 13 case changers 30 in which a plurality of case 25 in which components are stored are stored in a case stocker 32 to the feeder table 14 and the main. This is done by placing the table 11 side by side. When 13 types of components are mounted on the substrate SU, a plurality of cases 25 each storing types of components are stored in each of the 13 case changers 30 in total. Since the installation position of the case changer 30 between the feeder table 14 and the main table 11 is determined in advance by positioning means such as ribs and pins, the case changer 30 is fixed by placing the case changer 30 at the installation position. 30 can be installed. The rear end port (corresponding to the extrusion port) of the insertion guide 35 of each case changer 30 after installation faces the front end port (corresponding to the insertion port) of the case mounting passage 21 a of each bulk feeder 20. The case 25 in a predetermined direction pushed out from the end opening can be inserted into the front end opening of the case mounting passage 21a.

  In step SP13, “data registration” includes the number of cases 25 stored in each of a total of 13 case changers 30, the types of components stored in the cases 25, and the components stored in the cases 25. The number of components to be mounted on the board SU, the type and position of the parts to be mounted, the number of boards to be mounted, and the like are input by the input device shown in FIG. 2 and registered in the memory of the control circuit. Incidentally, the number of parts stored in one case 25 is predetermined within a range of 30 to 70,000 depending on the type, although it varies somewhat depending on the size and shape of the parts. Is input based on the determined number.

  In step SP14, “case insertion” is performed for the case 25 stored in each of the 13 case changers 30 and the case attachment passages of the 13 bulk feeders 20 in which the case 25 is not attached to the case attachment passage 21a. It is carried out by inserting it into 21a and holding it at a predetermined holding position of the case mounting passage 21a.

  As shown in FIG. 23, this “case insertion” is stored in the case stocker 32 by a transport pusher 33f that rotates the endless belt 33e of the case transporter 33 by a predetermined amount counterclockwise in the figure and moves upward. All the plurality of cases 25 are raised, and the uppermost case 25 is inserted into a predetermined insertion standby position (the upper end portion of the uppermost case 25 is inserted inside the third plate-like portion 35a3 of the guide plate 35a of the insertion guide 35). To the position where

  Then, as shown in FIG. 24, the endless belt 34e of the case insertion machine 34 is rotated by a predetermined amount in the counterclockwise direction in the figure, and the case 25 conveyed to the predetermined insertion standby position is inserted by the insertion pusher 34f that moves backward. The rear end of the case 25 is inserted into the case attachment passage 21 a of the bulk feeder 20 by moving rearward along the guide 35. Since slopes 21a3 and 21a4 (see FIGS. 3 to 5) are provided at the front ends of the upper surface and the lower surface of the case attachment passage 21a, the height between the rear end opening of the insertion guide 35 and the front end opening of the case attachment passage 21a. Even if the position is slightly shifted, the insertion can be performed without any trouble.

  Then, as shown in FIG. 25, the insertion pusher 34f is further moved rearward, and the case 25 inserted into the case attachment passage 21a is moved rearward along the case attachment passage 21a. The rearward movement amount of the insertion pusher 34f is set in advance so that the positioning hole 25h (see FIGS. 7 to 10) on the lower surface of the case 25 is fitted to the case holding protrusion 21d. When the insertion pusher 34f is moved rearward only, the positioning hole 25h (see FIGS. 7 to 10) on the lower surface of the case 25 is fitted into the case holding projection 21d, and the case 25 is in the predetermined holding position of the case mounting passage 21a. Retained. Thereafter, the insertion pusher 34f is returned to the state shown in FIG.

  After the preparation process is completed, the mounting process is performed according to the procedure shown in FIG. Specifically, the substrate SU is carried in by operating the actuator of the conveyor drive mechanism shown in FIG. 2 (step SP21). After completion of loading, data such as the type and mounting position of components to be mounted on the substrate SU and the number of substrates to be mounted are read from the memory of the control circuit shown in FIG. 2 (steps SP22 and SP23). After reading the data, the rotor 22 of a total of 13 bulk feeders 20 is rotated so that parts can be taken out from the outlets 25g of each bulk feeder 20, and the nozzle head 13 is moved to take out the outlet 25g by the suction nozzle. The operation of taking out the components from and mounting them on the substrate SU is repeated until the necessary components are mounted on the substrate SU (step SP24).

  After component mounting on one substrate SU is completed, 1 is added to the number of substrates that have been mounted, and the actuator of the conveyor drive mechanism shown in FIG. 2 is operated to carry out the substrate SU (steps SP25 and SP26). ). After the unloading is completed, it is determined whether or not the number of substrates that have been mounted has reached the target number of substrates N. If not, the process returns to step SP21 to repeat the same procedure, and the number of substrates that have been mounted is the target. When the number of substrates N is reached, the mounting process is terminated (steps SP27 and SP28).

  During the mounting process, the replacement process is performed in parallel according to the procedure shown in FIG. Specifically, this replacement process includes a process of managing the number of remaining parts of each bulk feeder 20 to determine whether or not case replacement is necessary (steps SP31 and SP32), and the bulk feeder 20 that is determined to require case replacement. Case replacement processing (steps SP33 and SP34), and processing for managing the remaining number of cases in each case changer 30 and determining whether or not case replenishment is necessary (steps SP35 to SP38).

  “Parts remaining number management” in step SP31 is performed by individually managing the number of remaining parts in the case 25 attached to each bulk feeder 20. Specifically, since the remaining number of parts in the case 25 attached to each bulk feeder 20 in the “case insertion” in the step SP14 is an initial value, the parts are mounted on the substrate SU in the “part mounting” in the step SP24. Each time, the process of subtracting 1 from the number of remaining parts of the corresponding bulk feeder 20 is performed. For the bulk feeder 20 in which the remaining number of parts is zero or a predetermined lower limit value, for example, 1% of the initial value by this subtraction process, it is determined in step SP32 that “case replacement is necessary”.

  “Case replacement” in step SP33 performs the same operation as “case insertion” in step SP14. That is, as shown in FIG. 26, the endless belt 33e of the case transporter 33 is rotated by a predetermined amount in the same direction as in FIG. 23, and all the plurality of cases 25 stored in the case stocker 32 by the transport pusher 33f that moves upward. And the uppermost case 25 is transported to a predetermined insertion standby position (a position where the upper end portion of the uppermost case 25 is inserted inside the third plate-like portion 35a3 of the guide plate 35a of the insertion guide 35). .

  Then, as shown in FIG. 27, the endless belt 33e of the case insertion machine 34 is rotated by a predetermined amount in the counterclockwise direction in the drawing, and the case 25 conveyed to the predetermined insertion standby position is inserted by the insertion pusher 34f that moves backward. The rear end of the case 25 is inserted into the case attachment passage 21 a of the bulk feeder 20 by moving rearward along the guide 35. Since slopes 21a3 and 21a4 (see FIGS. 3 to 5) are provided at the front ends of the upper surface and the lower surface of the case attachment passage 21a, the height between the rear end opening of the insertion guide 35 and the front end opening of the case attachment passage 21a. Even if the position is slightly shifted, the insertion can be performed without any trouble.

  Then, as shown in FIG. 27, the insertion pusher 34f is further moved rearward, and the case 25 newly inserted into the case attachment passage 21a is moved rearward along the case attachment passage 21a. The case 25 held at the predetermined holding position of the case attachment passage 21a is forcibly pressed to move backward. Since each case holding projection 21d has a structure in which a pin having a hemispherical upper end is spring-biased upward, when the case 25 held in a predetermined holding position by the newly inserted case 25 is pressed, As each pin sinks, the fitting to the positioning hole 25h (see FIGS. 7 to 10) is released.

  The rearward movement amount of the insertion pusher 34f is set in advance so that the positioning hole 25h (see FIGS. 7 to 10) on the lower surface of the case 25 is fitted to the case holding protrusion 21d. When the insertion pusher 34f moves rearward only, the positioning hole 25h (see FIGS. 7 to 10) on the lower surface of the newly inserted case 25 is fitted into the case holding projection 21d, and the case 25 is connected to the case mounting passage 21a. Is held at a predetermined holding position.

  At the same time, the newly inserted case 25 forces the case 25 held at the predetermined holding position of the case mounting passage 21a to a position above the case discharge hole 21c of the case mounting passage 21a, that is, to the predetermined discharge position. 28, as shown in FIG. 28, the case 25 falls through the case discharge hole 21c, and further falls through the case drop opening 14a of the feeder table 14, and is disposed on the dedicated box (illustrated) (Omitted). Thereafter, the insertion pusher 34f is returned to the state shown in FIG.

  The “case remaining number management” in step SP35 is performed by individually managing the number of remaining cases stored in each case changer 30. Specifically, the number of remaining cases stored in each case changer 30 after “case insertion” in step SP14 is an initial value of −1, and is stored in each case changer 30 after “case replacement” in step SP33. Since the case remaining number is an initial value of −2, a process of subtracting 1 from the case remaining number of the corresponding case changer 30 is performed each time “case replacement” in step SP33 is performed. With respect to the case changer 30 in which the remaining number of cases becomes zero or 1 by this subtraction process, it is determined at step SP36 that "case replenishment is necessary", and at step SP37, the case is replenished to the operator by alarming or LED flashing. To be notified.

  When notified of case refilling, the case stocker 32 of the corresponding case changer 30 is refilled with the case replenished case 25, and the remaining number of cases after work is input by the input device shown in FIG. Register in the memory of the control circuit (see step SP38).

  Even if it is determined at step SP32 that another case is necessary for another bulk feeder 20, case replacement is performed in the same procedure as described above, and the number of cases remaining in each case changer 30 is managed to replenish cases. Processing steps (steps SP35 to SP38) for determining NO are performed.

<Effects of bulk feeder, case changer and chip mounter>
(1) According to the bulk feeder 20, the case 25 held at the predetermined holding position of the case mounting passage 21a is predetermined by inserting the case 25 in which components are stored into the front end port of the case mounting passage 21a and moving it backward. The case 25 can be forcibly pushed into the discharge position and dropped through the case discharge hole 21c, and the component-stored case 25 can be held at a predetermined holding position of the case mounting passage 21a. That is, the case 25 in which the remaining number of parts is zero or a small number can be replaced with the case 25 containing parts by a simple operation by simply inserting the part containing case 25 into the front end of the case mounting passage 21a in a predetermined direction. Since it can be collected, it is extremely suitable for automatic case replacement.

  (2) According to the case changer 30, the case 25 that has been stored in the case stocker 32 is transported to the insertion standby position by the case transporter 33, and the case 25 that has been stored is inserted by the case inserter 34. The guide 35 can be pushed out from the rear end port in a predetermined direction. That is, if the case changer 30 is arranged in a state where the rear end port of the insertion guide 35 faces the front end port of the case attachment passage 21a of the bulk feeder 20, the parts accommodated in a predetermined direction pushed out from the rear end port of the insertion guide 35 are accommodated. Since the completed case 25 can be inserted into the front end port of the case attachment passage 21a of the bulk feeder 20, it is extremely suitable for automatically replacing the case of the bulk feeder 20.

  (3) According to the chip mounter 10, the remaining number of parts of the bulk feeder 20 installed on the feeder table 14 is checked, and the remaining number of parts is zero or the bulk feeder 20 that has become a predetermined lower limit value. The case changer 30 can be replaced using the case changer 30. That is, the case replacement of the bulk feeder installed on the feeder table 14 can be performed in a timely and prompt manner.

<Modifications of bulk feeder, case changer, and chip mounter>
(1) The bulk feeder 20 is shown in which a confirmation opening is provided on the left side of the case attachment passage 21a along the case attachment passage 21a. However, the upper and lower belt-like plates 21a1 and 21a2 are continuous. The opening may be eliminated as a shape portion.

  Further, as the bulk feeder 20, two case holding projections 21d that can be pushed into the lower surface of the case mounting passage 21a are provided, and the two case holding projections 21d are respectively fitted in the positioning holes 25h of the case 25, Although the case 25 is shown that holds the case 25 at a predetermined holding position of the case attachment passage 21a, the case 25 can be supported by supporting the lower end of the front surface and the rear surface of the case 25 by widening the space between the case holding projections 21d. The mounting passage 21a can be held at a predetermined holding position. Of course, at least one similar case holding projection 21d may be provided on the upper surface of the case mounting passage 21a, and the case 25 may be held by a group of upper and lower case holding projections 21d.

  Further, as the bulk feeder 20, a motor 23 for rotating the rotor 22 is fixed to the right surface of the frame 21, but a recess is formed on the rear left surface of the frame 21, and the motor 23 is installed in the recess. It may be fixed. In this way, the bulk feeder 20 can be thinned by reducing the maximum left-right dimension of the bulk feeder 20.

  Further, the bulk feeder 20 has been shown to transmit the rotation of the motor shaft 23a to the rotor shaft 23a via the endless belt 24, but the gears meshing with the motor shaft 23a and the rotor shaft 23a are fixed to each other by the gears. You may make it perform rotation transmission.

  (2) Although the case changer 30 has one case stocker 32 for stacking and storing the case 25 in which components are stored in the vertical direction, two or more case stockers 32 and case transporters 33 are arranged in the front-rear direction. By arranging them in parallel, it is possible to store a larger number of case 25 in which components are stored.

  Further, as the case changer 30, an endless belt 33e is used in the case transporter 33 in order to move the transport pusher 33f in the vertical direction, and an endless belt 34e is used in the case inserter 34 in order to move the insertion pusher 34f in the front-rear direction. Although the ball screw with a nut is connected to the motor shafts 33b and 34b instead of the endless belts 33e and 34e and the nut is fixed to the pushers 33f and 34f, the pushers 33f and 34f are used. The same movement can be given to 34f.

  (3) As the chip mounter 10, data necessary for case replacement and case replenishment is input by the input device shown in FIG. 2 and registered in the memory of the control circuit. If an information recording unit such as a bar code, a two-dimensional code, or an IC tag in which data relating to the number is recorded is provided in the case 25 and the information recording unit is read by a dedicated reader, the input device shown in FIG. The input work can be simplified. If such an information recording unit is provided in the case 25, the case verification when storing the case 25 in the case stocker 32 of the case changer 30 can be performed, so that it is possible to prevent a mistake that an inappropriate case is stored when the case is replenished. .

  Further, the tip mounter 10 detects that the uppermost case 25 has been transported to a predetermined insertion standby position by the rotation amount of the endless belt 33e (rotation amount of the motor shaft 33b), and the rotation amount of the endless belt 33e (motor Although it is shown that the case 25 at the predetermined insertion standby position is detected at the predetermined holding position of the case attachment passage 21a of the bulk feeder 20 by the rotation amount of the shaft 34b), the vicinity of the predetermined insertion standby position and the predetermined holding are shown. A sensor such as a micro switch or an optical switch may be provided near the position, and the upward movement of the transport pusher 33f and the backward movement of the insertion pusher 34f may be controlled by the operation of the sensor.

  DESCRIPTION OF SYMBOLS 10 ... Chip mounter, 13 ... Nozzle head, 14 ... Feeder table, SU ... Substrate, 20 ... Bulk feeder, 21a ... Case attachment passage, 21b ... Case exposure port, 21c ... Case discharge port, 21d ... Case holding protrusion, 22 ... Rotor, 22b ... permanent magnet, 25 ... case, 25d ... storage chamber, 25e ... guide groove, 25f ... supply passage, 25g ... outlet, 30 ... case changer, 32 ... case stocker, 33 ... case transporter, 34 ... case Inserting machine, 35 ... insertion guide.

Claims (3)

(A1) the rotor has at least one permanent magnet that moves in a predetermined circular orbit when the rotor rotates, and (a2) the case includes: A storage chamber for storing a large number of parts in a bulk state, an arc-shaped guide groove formed on the inner wall of the storage chamber along the predetermined circular path, and the predetermined groove continuously to the predetermined groove A bulk feeder having an arcuate supply passage formed along a circular orbit and an outlet of an upper surface opening provided at an end of the supply passage,
The bulk feeder further includes a case attachment passage, a case holding means, a case exposure port, and a case discharge port. (A3) The case attachment passage includes the case inserted in a predetermined direction from one end of the case. (A4) The case holding means is configured to move the case so that the guide groove and the supply passage face the permanent magnet moving in the predetermined circular path. (A5) The case exposure opening is formed on the upper surface of the case attachment passage so as to expose the outlet of the case held at the predetermined retention position. (A6) The case discharge port has a predetermined holding position in the case mounting passage for dropping the case forcedly pushed from the predetermined holding position into the predetermined discharging position. It is formed on the lower surface of the rear end side than,
A bulk feeder characterized by that. A case changer for exchanging a case held in the case attachment passage of the bulk feeder according to claim 1 with a case in which a part is stored,
The case changer includes a case stocker, a case transporter, an insertion guide, and a case insertion machine. (B1) The case stocker stores a plurality of cases in which the components are stored, and (b2) The case transporter has a mechanism for transporting one of the parts-stored cases stored in the case stocker to a predetermined insertion standby position in a predetermined direction, and (b3) the insertion guide is The case in which the parts are accommodated that have been transported to the insertion standby position is guided from the predetermined insertion standby position toward the one end opening in the predetermined direction. (B4) The case insertion machine is moved to the predetermined insertion standby position. It has a mechanism for extruding the conveyed parts storage case from the one end opening along the insertion guide,
In the case changer, the one end of the insertion guide is inserted into the one end of the case attachment passage of the bulk feeder so that a case in which a part is stored in a predetermined direction pushed out from the one end of the insertion guide can be inserted into the case attachment passage. Used in a state of facing one end of the
Case changer characterized by that. A chip mounter that selectively takes out necessary components from a plurality of feeders installed on a feeder table by a nozzle head and mounts them on a component mounting target such as a substrate,
The bulk feeder according to claim 1 is used as at least one of the feeders, and the case changer according to claim 2 corresponds to the bulk feeder, and one end of an insertion guide thereof corresponds to the case of the bulk feeder. It is installed facing one end of the mounting passage.
The chip mounter includes: (c1) means for managing the remaining number of parts of the bulk feeder; and (c2) a predetermined change in the case changer when the remaining number of parts of the bulk feeder reaches zero or a predetermined lower limit value. By carrying out a case replacement operation, a case in which a part is stored in a predetermined direction pushed out from one end port of the insertion guide of the case changer is inserted into one end port of the case mounting passage of the bulk feeder to hold the case mounting passage in a predetermined manner. Means for forcibly pushing the case held in position into a predetermined discharge position and dropping it through the case discharge hole, and holding the part-stored case at a predetermined holding position in the case mounting passage.
Chip mounter characterized by that.

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