JP5162432B2 - Bulk feeder - Google Patents

Description

  The present invention relates to a bulk feeder that supplies loose electronic components aligned in a predetermined direction.

  The bulk feeder disclosed in Patent Documents 1 and 2 includes a storage chamber having a rear wall surface and an outer circumferential arc-shaped guide surface, and an intake port provided at the upper end of the guide surface (hereinafter referred to as an intake port). And a passage provided downstream from the intake port, a rotating plate provided behind the wall surface of the storage chamber, and a magnet provided on the rotating plate. In this bulk feeder, by rotating the rotating plate in a predetermined direction, a plurality of components attracted by the magnetic force of the magnet are moved upward along the wall surface and the guide surface, and only the components aligned by the wall surface and the guide surface are moved. It is made to flow into the intake port.

  By the way, the bulk feeder is configured to allow components to flow into the intake port in the process in which the magnet moving along a predetermined circular orbit moves upward as the rotating plate rotates, and the magnet moves the rear side of the intake port. The process of passing and moving downward is not involved in the inflow of parts to the intake port.

However, in the bulk feeder, even when the magnet passes through the rear side of the intake port and moves downward, the magnetic force of the magnet reaches the components in the storage chamber. Unnecessary fluctuations (variations not involved in the inflow of parts into the intake port) occur in the parts in the storage chamber. This unnecessary fluctuation increases the chances of parts rubbing against each other, and the rubbing causes problems such as scratches on the surface of the parts, blackening of the external electrodes of the parts, and deterioration of solderability. End up.
Japanese Patent No. 3482324 Japanese Patent No. 3796971

  An object of the present invention is to provide a bulk feeder that can prevent unnecessary fluctuations (fluctuations not involved in the inflow of parts to the intake port) from occurring in the components in the storage chamber due to the magnetic force of the permanent magnet moving in a predetermined circular orbit. There is.

  In order to achieve the above object, the present invention is a bulk feeder that supplies loose electronic components aligned in a predetermined direction for storing a large number of electronic components that can be attracted by magnetic force in a loose state. A storage chamber and at least one permanent magnet, and the permanent magnet moves in a predetermined circular orbit so that the magnetic force reaches an electronic component in the storage chamber and can be rotated outside one side of the storage chamber. A rotor arranged, a take-in port for allowing an electronic component to flow in a predetermined direction in the process of moving the permanent magnet upward as the rotor rotates, and as the rotor rotates And a magnetic force protection unit for preventing the magnetic force of the permanent magnet from reaching the electronic components in the storage chamber in the process of moving the permanent magnet downward through the outside of the intake port.

  This bulk feeder is provided with a magnetic force protection unit for preventing the magnetic force of the permanent magnet from reaching the electronic components in the storage chamber in the process in which the permanent magnet passes through the outside of the intake port and moves downward as the rotor rotates. It has. Therefore, in the process in which the permanent magnet passes through the outside of the intake port and moves downward, unnecessary fluctuations in the electronic component EC in the storage chamber due to the magnetic force of the permanent magnet (variation not related to the inflow of components to the intake port) Will not occur. In other words, it is possible to avoid problems such as scratches on the surface of the electronic component due to friction between the electronic components caused by the unnecessary fluctuations, and problems that the external electrodes of the electronic component are blackened and solder wettability is reduced. be able to.

  According to the present invention, there is provided a bulk feeder that can prevent unnecessary fluctuations (fluctuations that are not related to the inflow of parts to the intake port) from occurring in the parts in the storage chamber due to the magnetic force of the permanent magnet that moves in a predetermined circular orbit. be able to.

  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.

  Embodiments of the present invention will be described below, but the terms “match” and “identical” used in the description include dimensional tolerances, and do not imply perfect match or complete identity. In the following description, the left, right, front, back and back directions in FIG. 1A and the directions corresponding to these in the other drawings are referred to as front, back, left and right, respectively.

[First Embodiment]
1 to 14 show a first embodiment of the present invention. 1A to 1C are a left side view, a right side view, and a top view of a bulk feeder, and FIGS. 2A to 2C are diagrams of electronic components supplied by the bulk feeder shown in FIG. FIG. 3A to FIG. 3C are a left side view of a left plate, a left side view of a central plate and a right side of the case shown in FIG. 4 (A) to 4 (D) are partially enlarged sectional views of FIG. 3 (C), partially enlarged sectional views showing modifications of the guide grooves, and FIGS. 2 (B) and 2 (D). C) is a partially enlarged sectional view showing a guide groove when the electronic component shown in FIG. 5 is to be supplied, FIG. 5 is a partially enlarged top view of FIG. 3 (C), and FIGS. 6 (A) to 6 (D) are drawings. 3 (C) and a partially enlarged cross-sectional view showing a structure in which the guide groove is replaced with the guide groove shown in FIGS. 4 (B) to 4 (D), and FIGS. C) 1 is a left side view, a top view, and a cross-sectional view taken along line S3-S3 in FIG. 7A. FIG. 8 is a detailed view showing a positional relationship between a guide groove on the right plate and a permanent magnet of the rotor. 9 is a partially enlarged view of FIG. 1C, FIG. 10 is an enlarged sectional view taken along line S1-S1 of FIG. 1C, and FIG. 11 is an enlarged sectional view taken along line S2-S2 of FIG. 12 to 14 are operation explanatory views of the bulk feeder shown in FIG.

  First, with reference to FIG. 2, electronic components supplied by the bulk feeder shown in FIG. 1 and electronic components that can be supplied by the bulk feeder will be described.

  FIG. 2A shows the electronic component EC1 supplied by the bulk feeder shown in FIG. The electronic component EC1 shown in the figure has a rectangular parallelepiped shape having a dimensional relationship of length L1> width W1 = height H1, and has external electrodes EC1a at both ends in the length direction. A typical example of the electronic component EC1 is a chip capacitor having a length L1 of around 1.0 mm (specifically, 1.6 mm, 1.0 mm, 0.6 mm, 0.4 mm, etc.). The electronic component EC1 has an external electrode EC1a containing a material belonging to a ferromagnetic material and, depending on the type, an internal conductor containing a material belonging to a ferromagnetic material, so that it can be attracted by the magnetic force of a permanent magnet. is there.

  2B and 2C show electronic components EC2 and EC3 that can be supplied by the bulk feeder shown in FIG. 1 by changing the cross-sectional shape of a guide groove 13b described later. The electronic component EC2 shown in FIG. 2B has a rectangular parallelepiped shape having a dimensional relationship of length L2> width W2> height H2, and has external electrodes EC2a at both ends in the length direction. A typical example of the electronic component EC2 is a chip register having a length L2 of around 1.0 mm (specifically, 1.6 mm, 1.0 mm, 0.6 mm, 0.4 mm, etc.). The electronic component EC3 shown in FIG. 2C has a cylindrical shape having a dimensional relationship of length L3> diameter R3, and has external electrodes EC3a at both ends in the length direction. A typical example of the electronic component EC3 is a chip capacitor or chip register having a length L3 of around 1.0 mm (specifically, 1.6 mm, 1.0 mm, 0.6 mm, 0.4 mm, etc.). These electronic components EC2 and EC3 also have external electrodes EC2a and EC3a containing a material belonging to a ferromagnetic material, and depending on the type, an internal conductor containing a material belonging to a ferromagnetic material. Suction is possible.

  Next, the structure of the bulk feeder shown in FIG. 1 to which the electronic component EC1 is supplied will be described with reference to FIGS.

  As shown in FIGS. 1A to 1C, the bulk feeder includes a case 10, a support shaft 20, a bearing 30, a rotor 40, and a rotor drive mechanism (not shown).

  The case 10 includes a left plate 11 shown in FIG. 3 (A), a center plate 12 shown in FIG. 3 (B), and a right plate 13 shown in FIG. 3 (C).

  As shown in FIG. 3A, the left plate 11 has a substantially rectangular shape in left view and is made of metal or plastic. The left plate 11 has screw insertion holes 11a at its four corners.

  As shown in FIG. 3 (B), the center plate 12 has the same left side view outline as the left plate 11 and is made of metal or plastic. The central plate 12 has screw holes 12a at the four corners thereof, and has through holes 12b in the left-right direction.

  The through-hole 12b includes a first arc surface 12b1 having a predetermined radius of curvature, a second arc surface 12b2 having a radius of curvature smaller than that of the first arc surface 12b1, and matching the center of curvature with the first arc surface 12b1, A flat surface 12b3 connecting the lower end of the first arcuate surface 12b1 and the lower end of the second arcuate surface 12b2, and a recess 12b4 formed between the upper end of the first arcuate surface 12b1 and the upper end of the second arcuate surface 12b2. ing. An arc-shaped portion including the second arc surface 12b2 (hereinafter referred to as an overhang portion OP) projects inward from an extension line of the first arc surface 12b1 (see a two-dot chain line) in an angle range of about 180 degrees. As will be described in detail later, this overhanging portion OP functions as a “magnetic field protection portion” as stated in the claims. Moreover, the curvature radius of the 1st circular arc surface 12b1 is larger than the curvature radius of the outer periphery of the guide groove 13b mentioned later.

  As shown in FIG. 3C, the right plate 13 is made of a metal such as aluminum or plastic that has the same left-side outline as the left plate 11 and can transmit the magnetic force of the permanent magnet. The right plate 13 has screw insertion holes 11a at its four corners, an arc-shaped guide groove 13b on the left surface, and an outlet forming recess 13c on the upper surface.

  The guide groove 13b is formed in an angle range of about 180 degrees from the bottom to the top, the center of curvature of the outer peripheral edge of the guide groove 13b and the center of curvature of the inner peripheral edge coincide, and the outer peripheral edge and the inner peripheral edge The difference in curvature radius defines the width Wg described later. Further, the front portion from the uppermost point of the guide groove 13b has a linear shape extending forward. As shown in FIG. 4A, the guide groove 13b of the bulk feeder shown in FIG. 1 is slightly larger than the width W1 or height H1 of the electronic component EC1 shown in FIG. The width Wg and the depth Dg are smaller than the diagonal dimension D1. That is, the guide groove 13b shown in FIG. 4 (A) can accommodate the electronic component EC1 shown in FIG. 2 (A) in a length direction in which the surfaces of the width or height are substantially aligned and remain in the same direction. It can be moved along the guide groove 13b.

  4 (B) to 4 (D) are modified examples of the guide groove 13b shown in FIG. 4 (A) and the electronic components EC2 and EC3 shown in FIGS. 2 (B) and 2 (C) are supplied. The guide groove 13b in the case of doing is shown.

  The guide groove 13b shown in FIG. 4B is a modification of the guide groove 13b shown in FIG. 4A, and the guide groove 13b is an end face diagonal dimension of the electronic component EC1 shown in FIG. It has a width Wg and a depth Dg that are slightly larger than D1 and smaller than the length L1. That is, the guide groove 13b shown in FIG. 4B can accommodate the electronic component EC1 shown in FIG. 2A in the length direction regardless of the direction of the surface of the width and the height, and the same direction. It can be moved along the guide groove 13b.

  The guide groove 13b shown in FIG. 4C is for the case where the electronic component EC2 shown in FIG. 2B is to be supplied, and the guide groove 13b is the electronic component EC2 shown in FIG. 2B. The width Dg is slightly larger than the height H2 and smaller than the width W2, and the depth Dg is slightly larger than the width W2 of the electronic component EC2 shown in FIG. That is, the guide groove 13b shown in FIG. 4C can accommodate the electronic component EC2 shown in FIG. 2B in a length direction in which the surfaces of the width and the height are substantially aligned and remain in the same direction. It can be moved along the guide groove 13b.

  The guide groove 13b shown in FIG. 4 (D) is for the case where the electronic component EC3 shown in FIG. 2 (C) is to be supplied, and the guide groove 13b is the electronic component EC shown in FIG. 2 (C). The width Wg and the depth Dg are slightly larger than the diameter R3 and smaller than the length L3. That is, the guide groove 13b shown in FIG. 4D can accommodate the electronic component EC3 shown in FIG. 2C in the length direction and can be moved along the guide groove 13b in the same direction. it can.

  As shown in FIG. 5, the outlet forming recess 13c is formed by cutting out a part of the upper surface of the right plate 13 in the left-right direction, and has a predetermined depth reaching the guide groove 13b. That is, the uppermost point of the guide groove 13b and its front and rear portions are partially opened upward through the outlet forming recess 13c.

  An intake port forming member 13d made of metal or plastic is detachably attached to the left surface of the right plate 13 using a set screw FS. Although not shown, a screw insertion hole is formed in the intake port forming member 13d, and a screw hole into which a set screw FS is screwed is formed on the left surface of the right plate 13. The intake port forming member 13d has an outer shape that matches the inner shape of the recess 12b4 of the center plate 12, and has a narrow portion 13d2 that is narrowed by the arc surface 13d1. Further, the thickness of the intake port forming member 13d matches the thickness of the central plate 12. Further, the radius of curvature of the arc surface 13d1 is larger than the radius of curvature of the outer peripheral edge of the guide groove 13b, and the radius of curvature is the same as or slightly larger than the radius of curvature of the first arc surface 12b1 of the center plate 12. That is, as shown in FIG. 6 (A), the left opening of the guide groove 13b is partially blocked by the narrow portion 13d2 of the intake port forming member 13d, and the rear end of the closed portion is taken in later described It becomes the mouth 15a.

  6 (B) to 6 (D) show a structure in which the guide groove 13b (see FIG. 5 (A)) of the right plate 13 is replaced with the guide groove 13b shown in FIGS. 5 (B) to 5 (D). Show. In any structure, as in FIG. 6A, the left surface opening of the guide groove 13b is partially closed by the narrow portion 13d2 of the intake port forming member 13d, and the rear end of the closed portion is taken in later described. It becomes the mouth 15a.

  Furthermore, a stopper rod 13e that is formed in a quadrangular prism shape or a cylindrical shape and is made of metal or plastic is fitted in the front straight portion of the guide groove 13b. As shown in FIG. 5, the stopper bar 13e has a rear portion protruding toward the outlet forming concave portion 13c, and the protruding portion is exposed through the outlet forming concave portion 13c. That is, the rear portion of the stopper bar 13e enters the open portion of the guide groove 13b described above, and a region of the open portion where the stopper bar 13e does not exist becomes an outlet 16 for the upper surface opening described later.

  Further, a plurality of screw holes 13 f for screwing the support shaft 20 are formed on the right surface of the right plate 13.

  The case 10 is attached to the left surface of the central plate 12 shown in FIG. 3 (B) by overlapping the left plate 11 shown in FIG. 3 (A) using a set screw FS, and shown in FIG. 3 (B). The right plate 13 shown in FIG. 3C is overlaid on the right surface of the central plate 12 and assembled using a set screw FS.

  In this assembled state, the left surface opening of the through hole 12b of the central plate 12 is blocked by the right surface of the left plate 11, and the right surface opening of the through hole 12b of the central plate 12 is blocked by the left surface of the right plate 13. Is done. Further, the intake port forming member 13 d of the right plate 13 is fitted into the recess 12 b 4 of the through hole 12 b of the center plate 12. Furthermore, the upper portion of the left opening of the guide groove 13b of the right plate 13 is closed by the narrow portion 13d2 of the intake port forming member 13d and the overhang portion OP of the central plate 12. Furthermore, the left surface opening of the outlet forming recess 13 c of the right plate 13 is blocked by the right surface of the central plate 12.

  That is, in the case 10, the first circular arc surface 12b1, the second circular arc surface 12b2, and the flat surface 12b3 of the through hole 12b, the circular arc surface 13d1 of the intake port forming member 13d, the rear surface and the lower surface of the narrow portion 13d2, and the left A storage chamber 14 (see FIGS. 10 and 11) surrounded by a part of the right side of the plate 11 and a part of the left side of the right plate 13 is defined. Further, a supply passage 15 (see FIGS. 9 and 10) having the same cross-sectional shape as the guide groove 13b and capable of moving the length-oriented electronic component EC1 in the same direction is formed in the case 10. In addition, an intake port 15a (see FIG. 10) serving as an inlet is formed at the rear end of the supply passage 15. Furthermore, the upper surface of the case 10 is formed with an outlet 16 (see FIGS. 9 to 11) that is located at the front end of the supply passage 15 and has an upper surface opening for taking out the electronic component EC1 to the outside.

  In short, a portion of the guide groove 13b formed in the left surface of the right plate 13 of the case 10 with an angle range of about 180 degrees from the bottom to the top, where the left surface opening is not closed (an angle range portion of about 150 degrees) ) Functions as a substantial guide groove 13b, and a portion of which the left side opening is closed (an angle range portion of about 30 degrees) extends from the upper end (the intake port 15a) of the substantial guide groove 13b. It functions as a supply passage 15 extending upward.

  Although illustration is omitted, the same assembly as described above can be performed when the guide groove 13b (see FIG. 4A) of the right plate 13 is replaced with the guide groove 13b shown in FIGS. 4B to 4D. Accordingly, a substantially guide groove 13b corresponding to the cross-sectional shape of each guide groove 13b and a supply passage 15 extending from the upper end (intake port 15a) of the substantially guide groove 13b to above the storage chamber 14, It can be formed together with the storage chamber 14 and the outlet 16.

  As shown in FIG. 11, the support shaft 20 has a shaft body 20a and a flange 20b provided at the left end of the shaft body 20a, and is made of metal or plastic. The support shaft 20 is attached to the center of the right surface of the right plate 13 by inserting a set screw into a plurality of screw insertion holes provided in the flange portion 20b and screwing it into a screw hole 13f on the right surface of the right plate 13. In this attached state, the center of the shaft main body 20 a of the support shaft 20 coincides with the center of curvature of the guide groove 13 b of the right plate 13.

  The bearing 30 is composed of a radial type ball bearing, and is attached by fitting an inner ring thereof to the shaft body 20 a of the support shaft 20.

  As shown in FIGS. 7A to 7C, the rotor 40 is provided on a cylindrical portion 40a, a flange portion 40b provided at the left end of the cylindrical portion 40a, and a left outer surface of the flange portion 40b. And is formed of a metal such as aluminum or plastic that can transmit the magnetic force of the permanent magnet. On the left surface of the annular projecting portion 40, a total of eight permanent magnets 40d having a columnar shape are positioned so that their magnetic centers are located on a virtual circle VC concentric with the center of the rotor 40 (cylindrical portion 40a). In addition, it is embedded at an interval of 45 degrees so that one of the N pole face and the S pole face is exposed. Each of the illustrated permanent magnets 40d has a cylindrical shape and has magnetic poles at both end faces thereof, so that the magnetic force center (the place where the magnetic field lines are most densely aligned) coincides with the end face center of the cylindrical shape.

  As shown in FIG. 11, the rotor 40 has a cylindrical portion 40a so that the surface of each permanent magnet 40d (one of the N-pole surface and the S-pole surface) faces the right surface of the right plate 13 with a slight gap. The inner hole 40a1 is fitted into the outer ring of the bearing 30 and attached. In this attached state, the center of the virtual circle VC where the center of magnetic force of each permanent magnet 40d is located coincides with the center of curvature of the guide groove 13b of the right plate 13, and the rotor 40 is the shaft body 20a of the support shaft 30. The permanent magnets 40d can move along a circular orbit corresponding to the virtual circle VC as the rotor 40 rotates. Incidentally, each permanent magnet 40d exists outside the right plate 13, but each permanent magnet 40d has a magnetic force extending into the storage chamber 14 via the right surface of the storage chamber 14 (a part of the left surface of the right plate 13). Things are used.

  Further, as can be seen from FIG. 8, the positional relationship between the permanent magnet 40d and the guide groove 13b during rotation of the rotor 40 is such that the magnetic center of the permanent magnet 40d facing the guide groove 13b is directed into the guide groove 13b. Preferably, the magnetic center of the permanent magnet 40d is set to coincide with the center of the width Wg of the guide groove 13b. Of course, the positional relationship between the permanent magnet 40d and the guide groove 13b is such that if the magnetic center of the permanent magnet 40d is directed into the guide groove 13b, the magnetic center of the permanent magnet 40d is from the center of the width Wg of the guide groove 13b. You may set so that it may shift | deviate a little inside or outside. Incidentally, this position setting can be performed by changing the radius of curvature of the virtual circle VC where the magnetic center of each permanent magnet 40d is located, and also changing the radius of curvature of the outer peripheral edge and inner peripheral edge of the guide groove 13b of the right plate 13. Can be done.

  Further, as can be seen from FIG. 10, the positional relationship between the permanent magnet 40d and the storage chamber 14 during rotation of the rotor 40 is such that the surface of the permanent magnet 40d facing the guide groove 13b is the guide groove 13b on the right side of the storage chamber 14 and its Preferably, all the surfaces of the permanent magnet 40d facing the guide groove 13b are set to face the guide groove 13b on the right surface of the storage chamber 14 and both sides thereof so as to face both sides. Of course, the positional relationship between the permanent magnet 40d and the storage chamber 14 is such that the surface of the permanent magnet 40d facing the guide groove 13b faces the guide groove 13b on the right side of the storage chamber 14 and both sides thereof. The portion excluding the outer edge portion of the surface of the permanent magnet 40d facing 13b may be set so as to face the guide groove 13b on the right surface of the storage chamber 14 and both sides thereof. Incidentally, this position setting can be performed by changing the curvature radius of the first circular arc surface 12b1 of the through hole 12b of the central plate 12, and also changing the curvature radius of the virtual circle VC where the magnetic center of each permanent magnet 40d is located. And it can carry out by changing the curvature radius of the outer periphery of the guide groove 13b of the right board 13, and an inner periphery.

  Although not shown, the same position as described above can be obtained when the guide groove 13b (see FIG. 4A) of the right plate 13 is replaced with the guide groove 13b shown in FIGS. 4B to 4D. A relationship is set.

  A rotor drive mechanism (not shown) is for rotating and stopping the rotor 40 in a desired direction. Basically, a motor, a drive gear attached to a motor shaft, a motor control circuit, have. If a substitute part of a gear is formed on the outer peripheral surface of the rotor 40, or another gear is fixed to the rotor 40 and the drive gear is engaged with the gear, the rotor 40 is rotated in a desired direction by motor operation. The rotation of the rotor 40 can be stopped by stopping the motor operation.

  Next, the operation of supplying the electronic component EC1 by the bulk feeder shown in FIG. 1 will be described with reference to FIGS.

  When supplying the components, as shown in FIG. 12, a large number of electronic components EC1 are stored in the storage chamber 14 of the case 10 in a loose state. This storage is performed through a replenishing port (not shown) with an open / close lid provided in the case 10. If the storage amount of the electronic component EC1 is too large, the probability of the electronic component EC1 flowing into the intake port 15a is lowered, so that the maximum storage level of the electronic component EC1 is about 1/2 of the height dimension of the storage chamber 14. Is preferred. If the electronic component EC1 has a length of around 1.0 mm, a case of the same size as that of FIG. 1 is formed, and even if the maximum storage level is about ½ of the height of the storage chamber 14, tens of thousands About the electronic component EC1 can be accommodated.

  After the electronic component EC1 is stored in the storage chamber 14, as shown in FIG. 12, the rotor 40 is rotated several times counterclockwise to initially supply the electronic component EC1 to the supply passage 15 and the outlet 16 (so-called so-called). , Stuffing).

  Of the permanent magnets 40d that move in a circular orbit along with the rotation of the rotor 40, the permanent magnets 40d that pass through the right side of the intake port 15a and move downward are provided on the left side as shown in FIG. An overhang portion OP for preventing the magnetic force of the magnet 40d from reaching the electronic component EC in the storage chamber 14 is provided so as to cover the movement path of the permanent magnet 40d. That is, in the process in which the permanent magnet 40d passes through the right side of the intake port 15a and moves downward, it is possible to prevent the magnetic force of the permanent magnet 40d from reaching the electronic component EC in the storage chamber 14 by the protruding portion OP. Therefore, the magnetic force of the permanent magnet 40d does not cause unnecessary fluctuations (fluctuations that are not related to the inflow of the components to the intake port 15a) in the electronic component EC in the storage chamber 14.

  Of the permanent magnets 40d that move in a circular orbit along with the rotation of the rotor 40, the right plate 13 exists on the left side of the permanent magnet 40d that passes through the right side of the overhang portion OP and moves upward. Since the right plate 13 transmits the magnetic force of the permanent magnet 40d, the magnetic force of the permanent magnet 40d reaches the electronic component EC1 in the storage chamber 14. That is, in the process in which the permanent magnet 40d moves upward through the right side of the protruding portion, as shown in FIG. 12, the plurality of electronic components EC1 are attracted in the direction of the guide groove 13b by the magnetic force of the permanent magnet 40d. The plurality of electronic components EC1 moved upward along the guide groove 13b as the permanent magnet 40d moves upward.

  As described above, the positional relationship between the permanent magnet 40d and the guide groove 13b during rotation of the rotor 40 is set so that the magnetic center of the permanent magnet 40d facing the guide groove 13b faces the guide groove 13b, and The positional relationship between the permanent magnet 40d and the storage chamber 14 during rotation of the rotor 40 is set so that the surface of the permanent magnet 40d facing the guide groove 13b faces the guide groove 13b on the right side of the storage chamber 14 and both sides thereof. Yes. Therefore, as shown in FIG. 12, the plurality of electronic components EC1 attracted in the direction of the guide groove 13b by the magnetic force of the permanent magnet 40d covers an opposing surface of the surfaces of the permanent magnet 40d facing the guide groove 13b. At the same time, the plurality of electronic components EC1 are strongly attracted to the guide groove 13b, and several electronic components EC1 are accommodated in the guide groove 13b. That is, more electronic components EC1 can be attracted in the direction of the guide groove 13b by the magnetic force of the permanent magnet 40d, and a plurality of sucked electronic components EC1 can be accommodated in the guide groove 13b with high probability. Thereby, the inflow probability of the electronic component EC1 to the intake port 15a described later can be increased. Incidentally, the direction of the electronic component EC1 accommodated in the guide groove 13b becomes two patterns of the length direction (see FIG. 4A) and the direction different from the length direction by 90 degrees (see FIG. 13). The direction of the electronic component EC1 that is not accommodated in 13b is random (meaning that the directions are different).

  The plurality of electronic components EC1 including the electronic component EC1 accommodated in the guide groove 13 moves further upward along the guide groove 13b along with the upward movement of the permanent magnet 40d and reaches the intake port 15a. At this time, when the foremost side among the several electronic components EC1 accommodated in the guide groove 13b is “the electronic component EC1 accommodated in the length direction in the guide groove 13b”, FIG. As shown, the electronic component EC1 flows into the intake port 15a in the same direction. Further, “the electronic component EC1 accommodated in the guide groove 13b in a direction different from the length direction by 90 degrees” and the “guide groove” located behind the “electronic component EC1 accommodated in the length direction in the guide groove 13b”. As shown in FIG. 13, the electronic component EC1 not accommodated in 13b abuts on the rear surface of the narrow portion 13d2 of the intake port forming member 13d existing on the left side of the intake port 15a, and the right side of the intake port 15a is When the permanent magnet 40d passes and the magnetic force does not reach, it falls downward. That is, “the electronic component EC1 accommodated in the guide groove 13b in a direction different from the length direction by 90 degrees” and “the electronic component EC1 not accommodated in the guide groove 13b” are accommodated in the length direction in the guide groove 13b. This prevents the electronic component EC1 "from flowing into the intake port 15a.

  On the other hand, when the foremost side of several electronic components EC1 accommodated in the guide groove 13b is “the electronic component EC1 accommodated in the guide groove 13b in a direction different from the length direction by 90 degrees”, the rear side Even if “the electronic component EC1 accommodated in the length direction in the guide groove 13b” exists, the inflow of the electronic component EC1 into the intake port 15a is “a direction different from the length direction in the guide groove 13b by 90 degrees”. Is basically blocked by the electronic component EC1 ". Further, as shown in FIG. 13, the “electronic component EC1 accommodated in the guide groove 13b in a direction different from the length direction by 90 degrees” and the “electronic component EC1 not accommodated in the guide groove 13b” are shown in FIG. It comes into contact with the rear surface of the narrow portion 13d2 of the intake port forming member 13d on the left side, and drops downward when the permanent magnet 40d passes through the right side of the intake port 15a and the magnetic force does not reach. However, “the electronic component EC1 accommodated in the length direction in the guide groove 13b” exists behind the “electronic component EC1 accommodated in the guide groove 13b in a direction different from the length direction by 90 degrees”, and When the “electronic component EC1 accommodated in the guide groove 13b in a direction 90 degrees different from the length direction” falls, the direction of the “electronic component EC1 accommodated in the length direction in the guide groove 13b” changes. When it does not occur, the electronic component EC1 flows into the intake port 15a.

  As shown in FIG. 14, the electronic component EC1 that has flowed into the intake port 15a moves further upward along the supply path 15 along with the upward movement of the permanent magnet 40d, and the tip of the electronic component EC1 stops at the stopper bar. When it comes into contact with the rear surface of 13e, it stops and is supplied to the outlet 16. Further, since the series of supply operations described above is repeated when the rotor 40 is rotated several times, a plurality of electronic components EC1 are connected to the rear side of the leading electronic component EC1 that is in contact with the rear surface of the stopper bar 13e.

  Although not shown, the guide groove 13b (see FIG. 4A) of the right plate 13 is replaced with the guide groove 13b shown in FIGS. 4B to 4D. “Accommodation of electronic components EC1 to EC3 into”, “inflow of electronic components EC1 to EC3 from guide groove 13b into intake port 15a” and “movement of electronic components EC1 to EC3 in supply passage 15” are the same as described above. Done.

  Incidentally, when the guide groove 13b (see FIG. 4 (A)) of the right plate 13 is replaced with the guide groove 13b shown in FIG. 4 (B), the electronic component EC1 does not have a uniform width or height. Although it can be accommodated in the guide groove 13b in the direction (see the broken line in FIG. 4B), the posture of the electronic component EC1 itself is stabilized in the process of moving in the guide groove 13b and the process of moving in the supply passage 15. Therefore, the electronic component EC1 is supplied to the outlet 16 in a posture in which the surfaces of the width or height are aligned.

  After the initial supply of the electronic component EC1 to the supply passage 15 and the outlet 16 is finished by rotating the rotor 40 several times in the counterclockwise direction, the permanent magnet 40d of the rotor 40 is moved to the outlet 16 as shown in FIG. The rotor 40 is stopped at a position (standby position) that has passed through the right side.

  The electronic component EC1 is taken out from the bulk feeder shown in FIG. 1 at the standby position shown in FIG. Specifically, the suction nozzle (not shown) of the mounter (electronic component mounting apparatus) is lowered toward the outlet 16 to suck the leading electronic component EC1 located at the outlet 16, and then the suction nozzle is moved. Done by raising. Since the take-out port 16 is located at the uppermost point of the arc-shaped supply passage 15, even if a plurality of electronic components EC1 are connected to the rear side of the leading electronic component EC1 located at the take-out port 16, the subsequent There is no load (for example, pressing force) that causes a trouble in taking out the electronic component EC1 from the first electronic component EC1.

  After the leading electronic component EC1 located at the outlet 16 is taken out, the rotor 40 at the standby position is rotated in a counterclockwise direction by a predetermined angle, for example, 45 degrees, 90 degrees, 135 degrees, and 180 degrees, and the rotor is rotated. 40 is again stopped at the standby position. Incidentally, since the removal of the electronic component EC1 can be easily detected by a sensor (not shown), the rotation of the rotor 40 can be started based on the detection signal. In the process of rotating the rotor 40 at the standby position by a predetermined angle in the counterclockwise direction, “accommodation of the electronic component EC1 in the guide groove 13b” and “inflow of the electronic component EC from the guide groove 13b to the intake port 15a”. The “movement of the electronic component EC1 in the supply passage 15” is performed in the same manner as described above, and the electronic component EC1 is supplied to the outlet 16 again. Thereafter, each time the leading electronic component EC1 located at the outlet 16 is taken out, the rotor 40 at the standby position rotates by a predetermined angle in the counterclockwise direction.

  Although not shown in the drawings, the same operation as described above can be performed when the guide groove 13b (see FIG. 4A) of the right plate 13 is replaced with the guide groove 13b shown in FIGS. 4B to 4D. Is obtained.

  In the bulk feeder of the first embodiment, among the permanent magnets 40d that move in a circular orbit along with the rotation of the rotor 40, on the left side of the permanent magnet 40d that passes through the right side of the intake port 15a and moves downward. An overhanging portion OP for preventing the magnetic force of the permanent magnet 40d from reaching the electronic component EC in the storage chamber 14 is provided so as to cover the movement path of the permanent magnet 40d. That is, in the process in which the permanent magnet 40d passes through the right side of the intake port 15a and moves downward, the magnetic force of the permanent magnet 40d can be prevented from reaching the electronic component EC1 in the storage chamber 14 by the protruding portion OP. Therefore, the magnetic force of the permanent magnet 40d does not cause unnecessary fluctuations (fluctuations not related to the inflow of the components to the intake port 15a) in the electronic component EC1 in the storage chamber 14. Therefore, the surface of the electronic component EC1 is damaged due to the friction between the electronic components EC1 due to the unnecessary fluctuation, the external electrode of the electronic component EC1 is blackened, and the solder wettability is deteriorated. You can avoid that.

  Further, in the bulk feeder according to the first embodiment, since the overhang portion OP is provided in the component constituting the storage chamber 14, that is, the central plate 12, the angle range, shape, etc. of the overhang portion OP can be easily changed. In short, the region where the magnetic force of the permanent magnet 40d that moves downward through the right side of the intake port 15a does not reach the electronic component EC1 in the storage chamber 14 can be easily varied.

  Furthermore, in the bulk feeder of the first embodiment, the intake port 15a serves as an inlet of the supply passage 15 that can move the electronic component EC in the length direction while being in the same direction. The upper end of the upper end is provided with an outlet opening for taking out the electronic component EC to the outside. That is, the bulk feeder itself can be compactly formed by providing the upper surface opening outlet 16 on the upper surface of the case 10, and the length of the supply passage 15 from the inlet 15a to the outlet 16 is shortened. Accordingly, the electronic component EC can be moved in the supply passage 15 and the electronic component EC can be smoothly supplied to the outlet 16.

  These actions and effects can be obtained in the same manner even when the guide groove 13b (see FIG. 4A) of the right plate 13 is replaced with the guide groove 13b shown in FIGS. 4B to 5D. Needless to say.

[Second Embodiment]
15 and 16 show a second embodiment of the present invention. FIG. 15 is a left side view of the central plate constituting the case, and FIG. 16 is an enlarged sectional view corresponding to FIG.

  The bulk feeder of the second embodiment is different from the bulk feeder of the first embodiment in that the case 10 is configured by using the center plate 51 shown in FIG. 15 instead of the center plate 12 shown in FIG. In the point. Since other configurations are the same as those of the bulk feeder of the first embodiment, the same reference numerals are used and description thereof is omitted.

  The center plate 51 has the same left side view outline as the left plate 11 and is made of metal or plastic. The central plate 51 has screw holes 51a at the four corners thereof, and has through holes 51b in the left-right direction.

  The through hole 51b is formed between an arc surface 51b1 having a predetermined radius of curvature, a dogleg-shaped bent surface 51b2 extending upward from the lower end of the arc surface 51b1, and an upper end of the arc surface 51b1 and an upper end of the bent surface 51b2. And a formed recess 51b3. A fan-shaped portion including the bent surface 51b2 (hereinafter referred to as an overhang portion OP1) projects inward from an extension line (see a two-dot chain line) of the arc surface 51b1 within an angle range of about 210 degrees. This overhanging portion OP1 functions as a “magnetic force protection portion” as stated in the claims. Moreover, the curvature radius of the circular arc surface 51b1 is larger than the curvature radius of the outer periphery of the guide groove 13b.

  The case 10 is attached to the left surface of the central plate 51 shown in FIG. 15 by overlapping the left plate 11 shown in FIG. 3A using a set screw FS, and is attached to the right surface of the central plate 12 shown in FIG. The right plate 13 shown in FIG. 3C is assembled by being overlapped and attached using a set screw FS.

  In this assembled state, the left surface opening of the through hole 51 b of the central plate 51 is blocked by the right surface of the left plate 11, and the right surface opening of the through hole 51 b of the central plate 51 is blocked by the left surface of the right plate 13. . Further, the inlet forming member 13d of the right plate 13 is fitted into the recess 51b3 of the through hole 51b of the central plate 51. Further, the upper portion of the left opening of the guide groove 13b of the right plate 13 is closed by the narrow portion 13d2 of the intake port forming member 13d and the overhang portion OP1 of the central plate 51. Furthermore, the left surface opening of the outlet forming recess 13 c of the right plate 13 is blocked by the right surface of the central plate 51.

  That is, in the case 10, the arc surface 51b1 and the bent surface 51b2 of the through hole 51b, the arc surface 13d1 and the rear surface and the lower surface of the narrow portion 13d2 of the intake port forming member 13d, and a part of the right surface of the left plate 11 are provided. And a storage chamber 14 ′ (see FIG. 16) surrounded by a part of the left surface of the right plate 13 is defined. The volume of the storage chamber 14 ′ is about ½ of the volume of the storage chamber 14 of the bulk feeder of the first embodiment. However, if the electronic component EC1 has a length of about 1.0 mm, the same size as FIG. Tens of thousands of electronic components EC can be stored even if the maximum storage level is about ½ of the height of the storage chamber 14 ′. Further, in the case 10, a supply passage 15 (see FIG. 16) having the same cross-sectional shape as the guide groove 13b and capable of moving the length-oriented electronic component EC1 in the same direction is formed. An intake port 15a (see FIG. 16) serving as an inlet is formed at the rear end of the supply passage 15. Further, an upper surface opening outlet 16 (see FIG. 16) is formed on the upper surface of the case 10 at the front end of the supply passage 15 and for taking out the electronic component EC1 to the outside.

  Although illustration is omitted, the same assembly as described above can be performed when the guide groove 13b (see FIG. 4A) of the right plate 13 is replaced with the guide groove 13b shown in FIGS. 4B to 4D. Thus, the same storage chamber 14 ′, supply passage 15, intake 15 a and outlet 16 can be formed.

  In the bulk feeder according to the second embodiment, the left-side view shape of the storage chamber 14 'is smaller than the bulk feeder according to the first embodiment by expanding the left-side view area of the overhang portion OP1, and the fan-like shape. However, the presence of the overhang portion OP1 can exhibit the same operations and effects as the bulk feeder of the first embodiment.

  Further, in the bulk feeder of the second embodiment, about 1/3 of the front side of the central plate 51 is a portion that is not involved in the formation of the storage chamber 14 ′, the supply passage 15 and the outlet 16 and thus is excluded. It is also possible to use the center plate 51 having a longitudinal dimension of about 2/3. In this way, it is possible to reduce the cost of the central plate 51 and hence the cost of the case 10 by reducing the amount of material necessary to form the central plate 51.

  These actions and effects can be obtained in the same manner even when the guide groove 13b (see FIG. 4A) of the right plate 13 is replaced with the guide groove 13b shown in FIGS. 4B to 5D. Needless to say. Further, other actions and effects obtained by the bulk feeder of the second embodiment are the same as the actions and effects obtained by the bulk feeder of the first embodiment.

[Third Embodiment]
17 and 18 show a third embodiment of the present invention. 17 is a left side view of the center plate and the right plate constituting the case, and FIG. 18 is an enlarged cross-sectional view corresponding to FIG.

  The bulk feeder of the third embodiment is different from the bulk feeder of the first embodiment in that the center plate 12 and the right plate 13 shown in FIGS. ) And the center plate 52 and the right plate 13 ′ shown in FIG. Since other configurations are the same as those of the bulk feeder of the first embodiment, the same reference numerals are used and description thereof is omitted.

  The center plate 52 has the same left side view outline as the left plate 11 and is made of metal or plastic. The center plate 52 has screw holes 52a at the four corners, and has through holes 52b in the left-right direction.

  The through hole 52b includes a first arc surface 52b1 having a predetermined radius of curvature, a second arc surface 52b2 having a smaller radius of curvature than the first arc surface 52b1, and the center of curvature of the first arc surface 52b1. A recess 52b4 formed between a flat surface 52b3 connecting the front upper end of the first arc surface 52b1 and the front end of the second arc surface 52b2, and a rear upper end of the first arc surface 52b1 and the rear end of the second arc surface 12b2. And have. An arc-shaped portion including the second arc surface 52b2 (hereinafter referred to as an overhang portion OP2) projects inward from an extension line (refer to a two-dot chain line) of the first arc surface 52b1 within an angle range of about 60 degrees. Incidentally, since the electronic component EC is not accommodated in the storage chamber 14 ″ to be described later until the overhanging portion OP2 is reached, the overhanging portion OP2 here is substantially used as a “magnetic force protection portion” in the claims. Does not work.

  The configuration of the right plate 13 ′ is the same as that of the right plate 13 shown in FIG. 3C, but a magnetic shield layer 53 having a rectangular shape in right view is attached to the right front side of the right plate 13 ′. Yes. The magnetic shield layer 53 is made of a material belonging to a ferromagnetic material, such as Permalloy (registered trademark) or iron, and has a single layer or a multilayer structure. In addition, as a method of attaching the magnetic shield layer 53 to the right plate 13 ′, a film formation method such as thermal spraying is used in addition to a method of pasting a plate or net formed on the right surface of the right plate 13 ′. A method of forming a film on the right surface of the right plate 13 ′ can be employed. The magnetic shield layer 53 may be made of a material belonging to a diamagnetic material (substance that does not pass magnetic force), such as platinum or copper, instead of a material belonging to a ferromagnetic material. As will be described in detail later, the magnetic shield layer 53 functions as a “magnetic defense part” in the claims.

  The case 10 is attached using the set screw FS with the left plate 11 shown in FIG. 3A overlaid on the left surface of the central plate 52 shown in FIG. 17A, and shown in FIG. 17A. The right plate 13 ′ shown in FIG. 17B is overlaid on the right surface of the central plate 52 and attached by using a set screw FS.

  In this assembled state, the left surface opening of the through hole 52b of the central plate 52 is blocked by the right surface of the left plate 11, and the right surface opening of the through hole 52b of the central plate 52 is blocked by the left surface of the right plate 13 '. The Further, the inlet forming member 13d of the right plate 13 is fitted into the recess 52b3 of the through hole 52b of the center plate 52. Further, the upper portion of the left opening of the guide groove 13b of the right plate 13 is closed by the narrow portion 13d2 of the intake port forming member 13d and the overhang portion OP2 of the central plate 52. Furthermore, the left surface opening of the outlet forming recess 13 c of the right plate 13 is blocked by the right surface of the central plate 52.

  That is, in the case 10, the first arc surface 52b1, the second arc surface 52b2, and the flat surface 52b3 of the through hole 52b, the arc surface 13d1 and the rear surface and the lower surface of the narrow portion 13d2 of the intake port forming member 13d, A storage chamber 14 ″ (see FIG. 18) surrounded by a part of the right surface of the plate 11 and a part of the left surface of the right plate 13 ′ is defined. In the case 10, a guide groove 13b and A supply passage 15 (see FIG. 18) having the same cross-sectional shape and capable of moving the electronic component EC1 in the length direction in the same direction is formed, and an inlet is provided at the rear end of the supply passage 15 An intake port 15a (see Fig. 18) is formed, and the upper surface of the case 10 is located at the front end of the supply passage 15 and has an upper surface opening 16 for taking out the electronic component EC1 to the outside. (See FIG. 18) is formed.

  Although not shown in the figure, when the guide groove 13b (see FIG. 4A) of the right plate 13 ′ is replaced with the guide groove 13b shown in FIG. 4B to FIG. A similar storage chamber 14 ″, supply passage 15, intake port 15a and outlet 16 can be formed by assembly.

  The rotor 40 rotatably disposed on the right side of the case 10 is fitted and fitted into the outer ring of the bearing 30 so that each permanent magnet 40d faces the right surface of the right plate 13 and the magnetic shield layer 53 with a slight gap. It is done.

  In the bulk feeder according to the third embodiment, among the permanent magnets 40d that move in a circular orbit as the rotor 40 rotates, the left side of the permanent magnet 40d that moves downward through the right side of the intake port 15a. The magnetic shield layer 53 for preventing the magnetic force of the permanent magnet 40d from reaching the electronic component EC in the storage chamber 14 ″ covers one side of the case 10, in other words, covers the moving path of the permanent magnet 40d. For example, it is provided between the right side of the storage chamber 14 ″ and the rotor 40. That is, the magnetic shield layer 53 prevents the magnetic force of the permanent magnet 40d from reaching the electronic component EC1 in the storage chamber 14 ″ in the process in which the permanent magnet 40d moves downward through the right side of the intake port 15a. Therefore, the magnetic force of the permanent magnet 40d does not cause unnecessary fluctuations in the electronic component EC1 in the storage chamber 14 (variations not involved in the inflow of the components to the intake port 15a). It is possible to avoid the problem that the surface of the electronic component EC1 is scratched by the friction between the electronic components EC1 and the external electrode of the electronic component EC1 is blackened and the solderability is lowered. .

  In the bulk feeder of the third embodiment, since the magnetic shield layer 53 is provided on the component constituting the storage chamber 14, that is, the right plate 13, the front and rear dimensions and shape of the magnetic shield layer 53 are easy. In short, the region where the magnetic force of the permanent magnet 40d that moves downward through the right side of the intake port 15a does not reach the electronic component EC1 in the storage chamber 14 can be easily changed.

  These actions and effects can be obtained in the same manner even when the guide groove 13b (see FIG. 4A) of the right plate 13 is replaced with the guide groove 13b shown in FIGS. 4B to 5D. Needless to say. Further, other actions and effects obtained by the bulk feeder of the third embodiment are the same as the actions and effects obtained by the bulk feeder of the first embodiment.

[Other Embodiments]
(1) In the first to third embodiments described above, the guide groove 13b is formed on the left surface of the right plates 13, 13 ′ of the case 10 in an angle range of about 180 degrees from the bottom to the top. The angle range of the guide groove 13b may be slightly increased or decreased. Even when the angle range is increased or decreased, the same operation and effect as described above can be obtained. Similarly, although the supply passage 15 is formed in an angle range of about 30 degrees, the angle range of the supply passage 15 may be slightly increased or decreased without changing the position of the outlet 16, and is increased or decreased. However, the same operation and effect as described above can be obtained.

  (2) In the first to third embodiments described above, the rotor 40 is provided with a total of eight permanent magnets 40d at intervals of 45 degrees. The number of permanent magnets 40d depends on the rotational speed of the rotor 40. It is possible to increase / decrease accordingly, and even when it is increased / decreased, the same effect as described above can be obtained. For example, when the rotational speed of the rotor 40 is ½, the number of permanent magnets 40d may be 16 and these may be arranged at intervals of 22.5 degrees, and the rotational speed of the rotor 40 is 8/1. In this case, the number of permanent magnets 40d may be one.

It is the left view, right view, and top view of a bulk feeder which show 1st Embodiment of this invention. FIG. 2 is a perspective view of an electronic component supplied by the bulk feeder shown in FIG. 1 and a perspective view of an electronic component that can be supplied by the bulk feeder. It is the left view of the left board which comprises the case shown in FIG. 1, the left view of a center board, and the left view of a right board. FIG. 3C is a partially enlarged cross-sectional view, a partially enlarged cross-sectional view showing a modification of the guide groove, and a guide groove when the electronic component shown in FIGS. 2B and 2C is to be supplied. It is a partial expanded sectional view shown. FIG. 4 is a partially enlarged top view of FIG. FIG. 5 is a partially enlarged cross-sectional view of FIG. 3C and a partially enlarged cross-sectional view showing a structure in which the guide groove is replaced with the guide groove shown in FIGS. 4B to 4D. FIG. 8 is a left side view, a top view, and a sectional view taken along line S3-S3 of FIG. 7A of the rotor shown in FIG. It is detail drawing which shows the positional relationship of the guide groove of a right board, and the permanent magnet of a rotor. It is the elements on larger scale of FIG.1 (C). It is an expanded sectional view which follows the S1-S1 line of FIG.1 (C). It is an expanded sectional view which follows the S2-S2 line of FIG.1 (C). It is operation | movement explanatory drawing of the bulk feeder shown in FIG. It is operation | movement explanatory drawing of the bulk feeder shown in FIG. It is operation | movement explanatory drawing of the bulk feeder shown in FIG. It is a left view of the center board which comprises a case which shows 2nd Embodiment of this invention. It is an expanded sectional view corresponding to FIG. It is a left view of the center board and right board which comprise a case which shows 3rd Embodiment of this invention. It is an expanded sectional view corresponding to FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Case, 11 ... Left board, 12, 51, 52 ... Center board, 13, 13 '... Right board, 13b ... Guide groove, 13c ... Outlet formation recessed part, 13d ... Inlet formation member, 14, 14' , 14 "... storage chamber, 15 ... supply passage, 15a ... intake port, 16 ... take-out port, 20 ... support shaft, 30 ... bearing, 40 ... rotor, 40d ... permanent magnet, OP, OP1 ... overhang portion, 53 ... Magnetic shield layer.

Claims (3)

A bulk feeder that supplies electronic components in a state of being aligned in a predetermined direction,
A storage chamber for storing a large number of electronic components that can be attracted by magnetic force in a loose state;
It comprises at least one permanent magnet, and, the permanent magnet is rotatably disposed outside the one side of the storage chamber so as to move in a predetermined circular path whose magnetic force extends to the electronic component of the storage chamber A rotor,
Said housing provided in the indoor, and, inlet for flowing a predetermined orientation electronic component in the process of the permanent magnet in accordance with the rotation of the rotor is moved upward,
A magnetic force defense unit for the magnetic force of the permanent magnet prevents to cover the electronic components of the storage chamber in the process of the permanent magnet in accordance with the rotation of the rotor is moved downward through the outside of the inlet With
The magnetic field protection unit includes an overhang portion provided in the storage chamber so as to cover a movement path of the permanent magnet that passes through the outside of the intake port and moves downward.
A bulk feeder characterized by that. A bulk feeder that supplies electronic components in a state of being aligned in a predetermined direction,
A storage chamber for storing a large number of electronic components that can be attracted by magnetic force in a loose state;
It comprises at least one permanent magnet, and, the permanent magnet is rotatably disposed outside the one side of the storage chamber so as to move in a predetermined circular path whose magnetic force extends to the electronic component of the storage chamber A rotor,
Said housing provided in the indoor, and, inlet for flowing a predetermined orientation electronic component in the process of the permanent magnet in accordance with the rotation of the rotor is moved upward,
A magnetic force defense unit for the magnetic force of the permanent magnet prevents to cover the electronic components of the storage chamber in the process of the permanent magnet in accordance with the rotation of the rotor is moved downward through the outside of the inlet With
The magnetic defense part is formed from a magnetic shield layer provided between one side of the storage chamber and the rotor so as to cover a moving path of the permanent magnet that passes through the outside of the intake port and moves downward. Become,
A bulk feeder characterized by that. The intake port is an inlet of a supply passage that can move electronic components in a predetermined direction while keeping the same direction,
The supply passage have been extended to above the storage room, and, outlet of the top surface opening for at its distal end to take out the electronic component to the outside,
The bulk feeder according to claim 1 or 2, characterized by things.

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