JP2010143729A - Bulk feeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bulk feeder capable of preventing the occurrence of getting stuck of a part in a process of moving the electronic part in a supply passage, by maximally shortening the supply passage for moving the electronic part flowed in an intake port. <P>SOLUTION: This bulk feeder has the intake port 15a for making the electronic part EC1 in the length direction flow in a process of moving a permanent magnet 40d upward in response to rotation of a rotor 40, the supply passage 15 extended up to the upper part of a storage chamber 14 from the intake port 15a and moving the electronic part in the length direction still in the same direction, and a takeout port of an upper surface opening arranged on the tip of the supply passage 15 and taking out the electronic part moved along the supply passage 15 to an external part. That is, the supply passage 15 can be maximally shortened by arranging the takeout port on the tip of the supply passage 15 extended up to the upper part of the storage chamber 14 from the intake port 15a. <P>COPYRIGHT: (C)2010,JPO&INPIT

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.

  This type of bulk feeder is generally used as a component supply means for a mounter (component mounting apparatus). Specifically, the bulk feeder has a top opening opening for taking out components, and a plurality of bulk feeders with different types of components to be supplied are juxtaposed in the feeder mounting area of the mounter. . The mounter selectively takes out components from a plurality of bulk feeders by means of a three-dimensionally movable suction nozzle and mounts them on a mounting object such as a circuit board.

  Incidentally, Patent Documents 1 and 2 do not disclose the outlet (the outlet of the upper surface opening for taking out the part to the outside), but the part flowing into the inlet is made downstream using the passage. Considering that the moving system is adopted, it is presumed that there is another passage at the end of the passage and an outlet of the upper surface opening at the tip of the other passage.

  In short, since the length of the path of the bulk feeder is extremely longer than the length of the part, there is a high possibility that the part will be clogged during the process of moving the part in the path. In other words, the cross-sectional shape of the passage is usually determined so that a component of the maximum size within the dimensional tolerance can pass through, but the dimensional tolerance / length value is large especially for a minute component having a length of around 1 mm. In addition, since the minimum size component within the dimensional tolerance is inclined more in the passage than the maximum size component, there is a high possibility of component clogging due to the inclination.

Although it is desirable to shorten the path as much as possible to prevent clogging of parts that occur in the process of moving parts in the passage, a method is adopted in which the part that has flowed into the intake port is moved downstream using the path. This bulk feeder cannot realize this because of its structure.
Japanese Patent No. 3482324 Japanese Patent No. 3796971

  SUMMARY OF THE INVENTION An object of the present invention is to provide a bulk feeder that can prevent clogging of components in the course of movement of electronic components in the supply passage by shortening the supply passage through which the electronic component that has flowed into the intake port moves as much as possible. 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, a rotor having at least one permanent magnet, and a rotor rotatably disposed outside one side surface of the storage chamber so that the magnetic force of the permanent magnet reaches electronic components in the storage chamber; An intake port for allowing an electronic component to flow in a predetermined direction in a process in which the permanent magnet moves upward as the rotor rotates, and extends from the intake port to above the storage chamber; and A supply passage for moving an electronic component in a predetermined direction in the same direction; an outlet opening of an upper surface opening provided at the tip of the supply passage and for taking out the electronic component moved along the supply passage; Can be attracted by magnetic force And then, and, and a shutter for opening and closing the takeout opening is displaced by the magnetic force induced in the permanent magnet when the rotor rotates.

  The bulk feeder is provided with an intake port for allowing an electronic component in a predetermined direction to flow in the process in which the permanent magnet moves upward as the rotor rotates, and extends from the intake port to above the storage chamber. A supply passage for moving the electronic component in a predetermined direction in the same direction, and an outlet of an upper surface opening provided at the tip of the supply passage and for taking out the electronic component moved along the supply passage to the outside And. In other words, the supply passage can be shortened as much as possible by providing an outlet at the tip of the supply passage that extends from the intake port to above the storage chamber. It is possible to prevent clogging and supply the electronic components to the outlet well, and the bulk feeder itself can be made compact.

  The bulk feeder is provided with a shutter that can be attracted by a magnetic force and is opened and closed by being displaced by magnetic induction of a permanent magnet when the rotor rotates. In other words, the outlet can be opened only when the electronic component is taken out from the outlet by displacing the shutter by the magnetic induction of the permanent magnet when the rotor rotates. In short, when the permanent magnet passes outside the outlet, the outlet can be closed by the shutter, so that the leading electronic component located at the outlet is affected by the magnetic force of the permanent magnet passing outside the outlet. Can be prevented from being disturbed, for example, the leading electronic component located at the outlet is standing up.

  According to the present invention, it is possible to provide a bulk feeder that can prevent clogging of components in the process of moving an electronic component in the supply passage by shortening a supply passage through which the electronic component flowing into the intake port moves as much as possible. 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 18 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 is a partially enlarged top view of FIG. 3B, FIGS. 5A to 5D are partially enlarged sectional views of FIG. 3C, and a modification of the guide groove. Partially enlarged sectional view and partially enlarged sectional view showing a guide groove when the electronic component shown in FIGS. 2B and 2C is supplied, FIG. 6 is a partially enlarged top view of FIG. 7 (A) to 7 (D) show a partially enlarged cross-sectional view of FIG. 3 (C) and a structure in which the guide groove is replaced with the guide groove shown in FIGS. 5 (B) to 5 (D). portion 8A to 8C are a left side view and a top view of the rotor shown in FIG. 1, and a cross-sectional view taken along line S3-S3 in FIG. 8A, and FIG. FIG. 10 is an enlarged top view of the shutter shown in FIG. 1 (C), FIG. 11 is a partially enlarged view of FIG. 1 (C), and FIG. 12 is a diagram showing the positional relationship between the guide groove and the permanent magnet of the rotor. 1 (C) is an enlarged sectional view taken along line S1-S1, FIG. 13 is an enlarged sectional view taken along line S2-S2 in FIG. 1 (C), and FIGS. 14 to 18 are diagrams for explaining the operation of the bulk feeder shown in FIG. 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, a shutter 50, and a rotor drive mechanism (not shown). ing.

  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 center plate 12 has screw holes 12a at four corners thereof, left and right through holes 12b, and a shutter arrangement recess 12c on the upper surface.

  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. 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. 4, the shutter placement recess 12 c is formed by cutting out a part of the right side of the upper surface of the center plate 12 into a rectangular shape with a predetermined depth. A screw hole 12c1 is provided on the rear side of the bottom surface of the shutter placement recess 12c.

  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 the four corners thereof, 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. 5A, 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. 5 (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.

  5 (B) to 5 (D) supply the modified example of the guide groove 13b shown in FIG. 5 (A) and the electronic components EC2 and EC3 shown in FIGS. 2 (B) and 2 (C). The guide groove 13b in the case of doing is shown.

  The guide groove 13b shown in FIG. 5 (B) is a modification of the guide groove 13b shown in FIG. 5 (A), and the guide groove 13b is an end face diagonal dimension of the electronic component EC1 shown in FIG. 2 (A). 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. 5B 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 height, and the same direction. It can be moved along the guide groove 13b.

  The guide groove 13b shown in FIG. 5C 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. 5 (C) can accommodate the electronic component EC2 shown in FIG. 2 (B) 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. 5 (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. 5D 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. 6, 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. 7A, the left surface opening of the guide groove 13b is partially closed by the narrow width portion 13d2 of the intake port forming member 13d, and the rear end of the closed portion is an intake described later. It becomes the mouth 15a.

  7B to 7D show a structure in which the guide groove 13b (see FIG. 5A) of the right plate 13 is replaced with the guide groove 13b shown in FIGS. 5B to 5D. Show. 7A, the left opening of the guide groove 13b is partially closed by the narrow width portion 13d2 of the intake port forming member 13d, and the rear end of the closed portion is taken in later as in FIG. 7A. 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. 6, the stopper bar 13e has a rear portion protruding toward the outlet forming recess 13c, and the protruding portion is exposed through the outlet forming recess 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. . Further, the inlet forming member 13d of the right plate 13 is fitted into the recess 12b4 of the through hole 12b of the center plate 12. Furthermore, the upper part of the left opening of the guide groove 13b of the right plate 13 is an overhanging portion (the curvature of the second arc surface 12b2) including the narrow portion 13d2 of the intake port forming member 13d and the second arc surface 12b2 of the center plate 12. And an arcuate portion based on the difference between the radius and the radius of curvature of the first arcuate surface 12b1). Further, the front and rear portions of the right opening of the guide shutter arrangement recess 12 c of the center plate 12 are closed by the left surface of the right plate 13.

  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. 12 and 13) 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. Further, a supply passage 15 (see FIGS. 11 and 12) 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. At the same time, an intake port 15a (see FIG. 12) is formed at the rear end of the supply passage 15. Further, the upper surface of the case 10 is formed with an outlet 16 (see FIGS. 11 and 13) that is located at the front end of the supply passage 15 and has an upper 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. 5A) of the right plate 13 is replaced with the guide groove 13b shown in FIGS. 5B to 5D. 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. 13, 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. 8A to 8C, 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. Incidentally, since each illustrated permanent magnet 40d has a cylindrical shape and has magnetic poles at both ends thereof, the center of magnetic force (the place where the lines of magnetic force are most densely aligned) coincides with the center of the cylindrical end surface.

  As shown in FIG. 13, 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. 9, 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 faces 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.

  Furthermore, as can be seen from FIG. 12, 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. 5A) of the right plate 13 is replaced with the guide groove 13b shown in FIGS. 5B to 5D. A relationship is set.

  As shown in FIG. 10, the shutter 50 includes a rectangular main body 50a, a rectangular opening / closing portion 50b provided substantially at the center of the right side of the main body 50a, and a long hole provided at the center in the left-right direction of the main body 50a. Shaped guide hole 50c. The shutter 50 can be attracted by the magnetic force of the permanent magnet 40d of the rotor 40. Specifically, the shutter 50 is made of a material such as iron or nickel exhibiting ferromagnetism. Needless to say, if the permanent magnet 40d can be attracted by the magnetic force, a ferromagnetic layer is formed on the entire surface of the ferromagnetic base material by plating, or the entire surface of the plastic base material is ferromagnetic. A layer formed by plating or the like may be used as the shutter 50. Further, the thickness of the shutter 50 is smaller than or coincident with the depth of the shutter placement recess 12c of the central plate 12. Furthermore, the left-right dimension of the opening / closing part 50 b is larger than the left-right dimension of the outlet 16.

  As shown in FIG. 11, the shutter 50 has a case 10 in which a support shaft SS having a screw portion at the lower end is inserted into the guide hole 50c, and the screw portion is screwed into the screw hole 12c1 of the shutter placement recess 12c. Is arranged. Specifically, the front-rear dimension of the shutter placement recess 12c is equal to or larger than the front-rear dimension of the main body 50a plus the front-rear dimension of the opening / closing part 50b, and the left-right dimension of the shutter placement recess 12c is the front-rear dimension of the main body 50a. The front-rear dimension of the outlet forming recess 13c (in this case, the front end of the outlet-forming recess 13c is indicated from the rear end of the outlet 16) is the same as twice the front-rear dimension of the opening / closing part 50b. Or larger. That is, the main body 50a of the shutter 50 can move in the front-rear direction within the shutter placement recess 12c while being guided by the guide hole 50c and the left and right surfaces of the shutter placement recess 12c (the left surface of the right plate 13). Moreover, the opening / closing part 50b of the shutter 50 can move back and forth in the outlet forming recess 13c as the main body 50a moves back and forth. Incidentally, in FIG. 11 showing the outlet closed state, the main body 50a of the shutter 50 is located on the rear side in the shutter placement recess 12c of the center plate 12, and the opening / closing portion 50b is the outlet forming recess 13c of the right plate 13. It is located on the rear side of the inside and closes the outlet 16.

  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, an 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. 14, 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 having the same size as that of FIG. About the electronic component EC1 can be accommodated.

  After the electronic component EC1 is stored in the storage chamber 14, as shown in FIG. 14, 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, on the left side of the permanent magnet 40d that passes through the right side of the intake port 15a and moves downward, as shown in FIG. Since there is an overhanging portion including the arc surface 12b2, the magnetic force of the permanent magnet 40d is prevented from reaching the electronic component EC1 in the storage chamber 14. That is, in the process in which the permanent magnet 40d moves downward through the right side of the intake port 15a, unnecessary fluctuations in the electronic component EC1 in the storage chamber 14 due to the magnetic force of the permanent magnet 40d (components to the intake port 15a). Fluctuations not related to inflow) do not occur.

  Also, among 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 protruding portion and moves upward. Since the 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. 14, 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. 14, 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 among 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. 5A) and the direction different from the length direction by 90 degrees (see FIG. 15). 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. 15, 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. 15, 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” 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. 16, the electronic component EC1 that has flowed into the intake port 15a moves further upward along the supply passage 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. 5A) of the right plate 13 is replaced with the guide groove 13b shown in FIGS. 5B to 5D. “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. 5 (A)) of the right plate 13 is replaced with the guide groove 13b shown in FIG. 5 (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. 5B), 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 rotor 40 is rotated several times in the counterclockwise direction and the initial supply of the electronic component EC1 to the supply passage 15 and the outlet 16 is finished, 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.

  In the process in which the permanent magnet 40d of the rotor 40 reaches the standby position from the right side of the outlet 16, the shutter 50 is attracted to the permanent magnet 40d by the magnetic force of the permanent magnet 40d reaching the shutter 50, as shown in FIGS. While moving in the same direction as the permanent magnet 40d, that is, forward. The shutter 50 moving forward stops when the front end of the main body 50a abuts against the front surface of the shutter placement recess 12c or when the front end of the opening / closing portion 50b abuts the front surface of the outlet forming recess 13c. That is, when the shutter 50 is moved forward by the magnetic force induction of the permanent magnet 40d, the opening / closing part 50d of the shutter 50 moves to the front side and the outlet 16 is opened.

  The electronic component EC1 is removed from the bulk feeder shown in FIG. 1 at the standby position shown in FIG. Specifically, after the suction nozzle (not shown) of the mounter (electronic component mounting apparatus) is lowered toward the opened outlet 16 to suck the leading electronic component EC1 located at the outlet 16, This is done by raising the suction nozzle. 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.

  Further, when the rotor 40 in the standby position is rotated counterclockwise by a predetermined angle, the permanent magnet 40d of the rotor 40 reaches the right side of the outlet 16 from the right rear side of the outlet 16 in FIGS. As shown in FIG. 16, the shutter 50 in the position of FIG. 17 is attracted by the permanent magnet 40d and moved rearward by the magnetic force of the permanent magnet 40d reaching the shutter 50. Then, the shutter 50 that moves rearward stops when the rear end of the main body 50a comes into contact with the rear surface of the shutter placement recess 12c. That is, by the rearward movement of the shutter 50 by the magnetic force induction of the permanent magnet 40d, the opening / closing part 50d of the shutter 50 moves to the rear side and the outlet 16 is closed.

  That is, when the rotor 40 at the standby position is rotated counterclockwise by a predetermined angle, the shutter 50 is moved backward in the process in which the permanent magnet 40d of the rotor 40 moves from the right rear side of the outlet 16 to the right side of the outlet 16. The outlet 16 can be closed by the opening / closing portion 50d, and the shutter 50 is moved forward in the process where the permanent magnet 40d of the rotor 40 reaches the standby position from the right side of the outlet 16, and the opening / closing portion 50d allows the outlet 50 to open. 16 can be opened. In short, since the outlet 16 is closed by the shutter 50 when the permanent magnet 40d passes the right side of the outlet 16, the outlet 16 is affected by the magnetic force of the permanent magnet 40d that passes the right side of the outlet 16. It is possible to prevent the position of the leading electronic component EC1 positioned from being disturbed, for example, the leading electronic component EC1 positioned at the outlet 16 from rising.

  Although not shown in the drawings, the same action as described above can be obtained when the guide groove 13b (see FIG. 5A) of the right plate 13 is replaced with the guide groove 13b shown in FIGS. 5B to 5D. Is obtained.

  The bulk feeder according to the first embodiment includes an intake port 15a for allowing the lengthwise electronic component EC1 to flow in the process in which the permanent magnet 40d moves upward, and from the intake port 15a to above the storage chamber 14. A supply passage 15 that extends and moves the electronic component EC1 in the length direction in the same direction, and an electronic component EC1 that is provided at the tip of the supply passage 15 and moves along the supply passage 15 And a take-out opening 16 for opening the top surface. In other words, the supply passage 15 can be shortened as much as possible by providing the outlet 16 at the tip of the supply passage 15 extending from the intake port 15a to the upper portion of the storage chamber 14, so that the interior of the supply passage 15 can be electronic components. It is possible to prevent clogging of parts in the process of passing EC1 and supply the electronic parts EC1 to the take-out port 16 satisfactorily, and the bulk feeder itself can be made compact.

  Further, the bulk feeder according to the first embodiment includes a shutter 50 that can be attracted by magnetic force and that is displaced by magnetic induction of the permanent magnet 40d when the rotor 40 rotates to open and close the outlet 16. . In other words, the outlet 16 can be opened only when the electronic component EC1 is taken out from the outlet 16 by displacing the shutter 50 by magnetic induction of the permanent magnet 40d when the rotor 40 rotates. In short, when the permanent magnet 40 d passes the right side of the outlet 16, the outlet 16 can be closed by the shutter 50, so that the outlet 16 is affected by the magnetic force of the permanent magnet 40 d that passes the right side of the outlet 16. It is possible to prevent the posture of the leading electronic component EC1 located at the position of the leading electronic component EC1 from being disturbed, for example, the leading electronic component EC1 located at the outlet 16 from rising. In addition, since the shutter 50 is displaced by the magnetic induction of the permanent magnet 40d, in other words, the shutter 50 is displaced in a non-contact manner with the rotor 40, so that neither wear or the like due to mutual contact occurs in both. .

  Further, in the bulk feeder according to the first embodiment, the shutter 50 is arranged in the vicinity of the take-out port 16 so as to be linearly movable in the front-rear direction, and the shutter 50 is taken when linearly moving forward by the magnetic induction of the permanent magnet 40d. The outlet 16 is opened, and the outlet 16 is closed when the outlet 16 is linearly moved backward. That is, in the process in which the permanent magnet 40d moves away from the shutter 50 and approaches the shutter 50 when the rotor 40 rotates, the outlet 16 can be opened and closed satisfactorily by the magnetic induction of the permanent magnet 40d.

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

[Second Embodiment]
19 and 20 show a second embodiment of the present invention. 19 is a partially enlarged view corresponding to FIG. 16, and FIG. 20 is an operation explanatory diagram of the bulk feeder shown in FIG. The bulk feeder of the second embodiment is different from the bulk feeder of the first embodiment in that the shutter 51 is used instead of the shutter 50, and the shape of the shutter placement recess 12d of the central plate 12 is adjusted to match the shutter 51. There is a change. 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.

  As shown in FIG. 19, the shutter 51 is provided at a substantially triangular main body 51a having a vertex on the right side, a trapezoidal opening / closing part 51b provided on the rear right side of the main body 51a, and a substantially center of the main body 51a. And a shaft support hole 51c. The shutter 51 can be attracted by the magnetic force of the permanent magnet 40d of the rotor 40. Specifically, the shutter 51 is made of a material such as iron or nickel exhibiting ferromagnetism. Needless to say, if the permanent magnet 40d can be attracted by the magnetic force, a ferromagnetic layer is formed on the entire surface of the ferromagnetic base material by plating, or the entire surface of the plastic base material is ferromagnetic. A layer formed by plating or the like can be used as the shutter 51. Further, the thickness of the shutter 51 is smaller than or coincides with the depth of the shutter placement recess 12d of the central plate 12. Furthermore, the left-right dimension of the opening / closing part 51 b is larger than the left-right dimension of the outlet 16. Further, the angle formed by the front right side and the rear right side of the main body 51a is about 150 degrees.

  Incidentally, the shutter arrangement recess 12d of the central plate 12 has a larger top view shape than the shutter arrangement recess 12c of the first embodiment, and can allow the rotation of the shutter 51 described later. Further, a screw hole 12d1 is provided in the approximate center of the circular surface of the shutter placement recess 12d.

  As shown in FIG. 19, the shutter 51 has a case in which a support shaft SS having a screw portion at the lower end is inserted into the shaft support hole 51c and the screw portion is screwed into the screw hole 12d1 of the shutter placement recess 12d. 10 is arranged. Specifically, in the main body 51a of the shutter 51, the position where the rear right side abuts the right surface of the shutter placement recess 12d (the left surface of the right plate 13) and the front right side thereof are the right surface of the shutter placement recess 12d (the left surface of the right plate 13). Can be rotated within the shutter arrangement recess 12d within an angle range (about 30 degrees) defined by the position (see FIG. 20) in contact with the shutter. Further, the opening / closing portion 51b of the shutter 51 can enter the outlet forming recess 13c with the main body 51a in contact with the right side of the shutter placement recess 12d (the left surface of the right plate 13), and The front right side can be retracted from the outlet forming recess 13c into the shutter placement recess 12d in a state where the front right side is in contact with the right surface of the shutter placement recess 12d (the left surface of the right plate 13). Incidentally, in FIG. 19 showing the outlet closed state, the main body 51a of the shutter 51 is located in the shutter placement recess 12d of the central plate 12, and the rear right side is the right side of the shutter placement recess 12d (the left side of the right plate 13). The opening / closing part 51b is located in the outlet forming recess 13c of the right plate 13 and closes the outlet 16.

  As in the bulk feeder of the first embodiment, after the initial supply of the electronic component EC1 to the supply passage 15 and the outlet 16 is completed by rotating the rotor 40 several times in the counterclockwise direction, as shown in FIG. The rotor 40 is stopped at a position where the permanent magnet 40d of the rotor 40 passes the right side of the outlet 16 (standby position).

  In the process in which the permanent magnet 40d of the rotor 40 reaches the standby position from the right side of the outlet 16, as shown in FIGS. 20 and 19, the front portion of the main body 51a of the shutter 51 is moved by the magnetic force of the permanent magnet 40d reaching the shutter 51. It is attracted by the permanent magnet 40d and rotates clockwise in FIG. Then, the shutter 51 that rotates in the clockwise direction stops when the front right side abuts on the right surface of the shutter placement recess 12d (the left surface of the right plate 13). That is, due to the clockwise rotation of the shutter 51 by the magnetic force induction of the permanent magnet 40d, the opening / closing part 51d of the shutter 51 is retracted from the outlet forming recessed part 13c into the shutter placement recessed part 12d, and the outlet 16 is opened.

  Further, when the rotor 40 in the standby position is rotated counterclockwise by a predetermined angle, the permanent magnet 40d of the rotor 40 reaches the right side of the outlet 16 from the right rear side of the outlet 16 in FIGS. 20, the rear part of the main body 51a of the shutter 51 at the position shown in FIG. 20 is attracted to the permanent magnet 40d by the magnetic force of the permanent magnet 40d that reaches the shutter 51, and rotates counterclockwise in FIG. The shutter 51 rotating in the counterclockwise direction stops when the rear right side comes into contact with the right surface of the shutter placement recess 12d (the left surface of the right plate 13). That is, due to the counterclockwise rotation of the shutter 51 due to the magnetic force induction of the permanent magnet 40d, the opening / closing part 51d of the shutter 51 enters the shutter placement recess 12d and the outlet 16 is closed.

  That is, when the rotor 40 in the standby position is rotated counterclockwise by a predetermined angle, the shutter 51 is moved in the counterclockwise direction in the process in which the permanent magnet 40d of the rotor 40 extends from the right rear side of the outlet 16 to the right side of the outlet 16. The opening 16 can be closed by the opening / closing part 51d, and the shutter 51 is rotated clockwise in the process in which the permanent magnet 40d of the rotor 40 reaches the standby position from the right side of the extraction port 16. The outlet 16 can be opened by the opening / closing part 51d. In short, since the outlet 16 is closed by the shutter 51 when the permanent magnet 40d passes the right side of the outlet 16, the outlet 16 is affected by the magnetic force of the permanent magnet 40d passing the right side of the outlet 16. It is possible to prevent the position of the leading electronic component EC1 positioned from being disturbed, for example, the leading electronic component EC1 positioned at the outlet 16 from rising.

  In the bulk feeder according to the second embodiment, the shutter 51 is rotatably disposed in the vicinity of the outlet 16, and the shutter 51 opens the outlet 16 when rotating in a predetermined direction by the magnetic induction of the permanent magnet 40 d. In addition, the outlet 16 is closed when rotating in the reverse direction. In other words, in the process in which the permanent magnet 40d moves away from the shutter 51 and approaches the shutter 51 when the rotor 40 rotates, the outlet 16 can be opened and closed satisfactorily by the magnetic induction of the permanent magnet 40d. Other operations and effects are the same as the operations and effects obtained by the bulk feeder of the first embodiment.

[Other Embodiments]
(1) In the first and second embodiments described above, the guide groove 13b is formed on the left surface of the right plate 13 of the case 10 in an angle range of about 180 degrees from below to above. The angle range of the 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 and second 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. 4 is a partially enlarged top view of FIG. 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. 6 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. 5B to 5D. FIG. 9 is a left side view, a top view, and a cross-sectional view taken along line S3-S3 in FIG. 8A 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 an enlarged top view of the shutter shown in FIG. 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 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 the elements on larger scale corresponding to FIG. 16 which shows 2nd Embodiment of this invention. It is operation | movement explanatory drawing of the bulk feeder shown in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Case, 11 ... Left board, 12 ... Center board, 12d, 12d ... Shutter arrangement recessed part, 13 ... Right board, 13b ... Guide groove, 13c ... Outlet forming recessed part, 13d ... Inlet forming member, 14 ... Storage Chamber, 15 ... Supply passage, 15a ... Intake port, 16 ... Outlet, 20 ... Support shaft, 30 ... Bearing, 40 ... Rotor, 40d ... Permanent magnet, 50, 51 ... Shutter.

Claims (4)

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;
A rotor having at least one permanent magnet and rotatably disposed outside one side surface of the storage chamber so that the magnetic force of the permanent magnet reaches electronic components in the storage chamber;
An intake port that is provided in the storage chamber and allows an electronic component in a predetermined direction to flow in the process in which the permanent magnet moves upward as the rotor rotates;
A supply passage that extends from the intake port to above the storage chamber and moves electronic components in a predetermined direction in the same direction;
An outlet of an upper surface opening provided at the front end of the supply passage and for taking out the electronic component moved along the supply passage;
And a shutter for opening and closing the outlet by being displaced by magnetic induction of a permanent magnet when the rotor is rotated. The bulk feeder according to claim 1,
The shutter is displaceably disposed in the vicinity of the outlet, and the shutter opens the outlet when displaced in a predetermined direction by the magnetic induction of a permanent magnet, and closes the outlet when displaced in the opposite direction. . The bulk feeder according to claim 2,
The shutter is capable of linear movement, and opens the outlet when moving linearly in a predetermined direction by the magnetic force induction of the permanent magnet, and closes the outlet when moving linearly in the reverse direction. The bulk feeder according to claim 2,
The shutter is capable of rotating around the shaft support, opens the outlet when rotating in a predetermined direction by magnetic induction of a permanent magnet, and closes the outlet when rotated in the opposite direction.

Images