JP2012066919A - Part supply system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a part supply system that is improved in an yield and an up-time ratio by eliminating a gap in the direction of part conveyance between a bowl and a linear feeder, and aligning parts on the linear feeder side in order to prevent the occurrence of a conveyance error and the jamming of the parts in the gap.SOLUTION: A magnet 13 is disposed inside the linear feeder 12 instead of on a bowl 1 side. A bidirectional guide 14 that guides the part A to the connection portion of the part the linear feeder 12 from the undersurface and from one of side surfaces is provided at the upper edge of the bowl 1. The end edge of the guide 14 is arranged so as to hang over the linear feeder 12.

Description

  The present invention relates to a component supply apparatus that supplies components oriented in various directions to an automatic machine after the components are aligned in the same direction, and in particular, a magnet that forcibly aligns components using the magnetic force of a magnet. This is an improvement of the parts supply system.

  Conventionally, a parts supply device called a parts feeder has been proposed (for example, Patent Document 1). The component supply device is a device that sends directional parts to the automatic machine after being aligned in the same direction, and is indispensable for a manufacturing apparatus such as an electronic component.

  Usually, the vertical direction and the horizontal direction are determined for electronic components. For example, when a lead terminal protrudes from each short edge portion of a rectangular parallelepiped package in a two-terminal component such as a diode, the direction in which the lead terminal protrudes is the vertical direction, and the direction orthogonal thereto is the horizontal direction.

  In general, the component supply device includes a bowl that throws the directional components in a separated state and a linear feeder that receives the components from the bowl and carries the aligned components to the outside. . Furthermore, the component supply apparatus has component selection means.

  The parts sorting means sorts parts facing a predetermined direction and other parts. As the part selection means, there are various sensors, image recognition means, mechanical guides, magnets and the like. Among them, magnets are gaining high demand because they can forcibly align parts using magnetic force.

  Here, a conventional example of a component supply apparatus having a magnet as the component selection means will be specifically described with reference to FIGS. As shown in FIG. 5, the component supply device is provided with a mortar-shaped bowl 1, a rectilinear feeder 2 that carries the component A out to the outside, and a plate-shaped magnet 3.

  Although not shown, the bowl 1 is provided with a vibrating portion that applies a vibration force to the bowl 1 in the circumferential direction and the oblique direction. In addition, the component A includes iron-based lead terminals at each short edge portion of the rectangular parallelepiped package. The part A enclosed by the two-dot chain line in FIG.

  On the inner wall of the bowl 1, a guide surface 1c is formed in a spiral shape from the bottom 1a to the upper edge 1b. A rectilinear feeder 2 is disposed on the upper edge 1b of the bowl 1 along the tangential direction of the circumference of the upper edge 1b. Further, a magnet 3 is attached to the inner wall surface of the bowl 1 at the upper edge of the bowl 1. The magnet 3 has a sufficient magnetic force to attract the lead terminal of the component A.

  Further, guides 4 and 5 for restricting the position of the part A are attached to the part outlet part on the bowl 1 side and the part inlet part on the linear feeder 2 side. Since the guides 4 and 5 vibrate integrally with the bowl 1 side and the rectilinear feeder 3, a gap 6 is formed between the guides 4 and 5 in the transport direction so that they do not collide with each other. The gap 6 is set to be shorter than the length dimension of the part A.

  In the component supply apparatus having the above configuration, the components A are aligned as follows. First, a large number of parts A are thrown into the bottom 1 a of the bowl 1 with the directions being different. When the bowl 1 repeats arc vibration and oblique vibration in response to the vibration force of the vibration part (not shown) after the component A is inserted, the arc vibration and the oblique vibration are transmitted to the component A in the bowl 1.

  With these vibration forces, the parts A are gradually raised in a spiral from the bottom 1a toward the upper edge 1b while being aligned in a line along the guide surface 1c while adjusting the posture. Although the parts A that have risen above the guide surface 1c are in a line in the vicinity of reaching the upper edge of the bowl 1, the directions of the parts A are still scattered.

  However, when the component A approaches the magnet 3, the iron-based lead terminal is attracted along the magnetic force lines of the magnet 3. Accordingly, the parts A are forcibly aligned in the horizontal direction and can be aligned in the horizontal direction with respect to the transport direction (see FIGS. 6 and 7).

  At this time, the lateral direction is set as the positive direction, and the other direction is set as the different direction, and only the component A directed in the positive direction enters the guide 4 and advances to the component outlet on the bowl 1 side. That is, the part A that has passed in front of the magnet 3 but remains in a different direction is returned to the bottom 1a of the bowl 1 using air blow or the like.

  The parts A aligned in the forward direction by the magnet 3 are transferred from the bowl 1 side to the linear feeder side 2. In the part exit part on the bowl 1 side and the part entrance part on the linear feeder 2 side, the guides 4 and 5 regulate the position of the part A from four directions (up, down, left and right), and the alignment of the part A finished by the magnet 3 is finished. Hold posture. The rectilinear feeder 2 carries out and supplies the component A to an external automatic device or the like while maintaining the posture of the aligned component A.

JP 2001-114413 A

  However, the following problems have been pointed out in the conventional component supply apparatus. As shown in FIG. 8, when viewed from the horizontal direction, the bowl 1 applies a circular vibration to the component A. For this reason, when the part A transfers from the guide 4 on the bowl 1 side to the guide 5 on the linear feeder 2 side, the part A may rotate in the horizontal direction due to arc vibration from the bowl 1.

  At this time, if the component A rotates 90 degrees in the horizontal direction, when the component A enters the guide 5 on the linear feeder 2 side even when the component A is in the forward direction (lateral direction) when exiting from the guide 4 on the bowl 1 side Thus, the part A is in a different direction (longitudinal direction). As a result, the conveyance mistake that the component A in the different direction was carried out from the linear feeder 2 side occurred.

  Further, the guides 4 and 5 provided at the connecting portion between the bowl 1 and the linear feeder 2 guide the part A from four surfaces, thereby contributing to maintaining the posture of the aligned parts A. However, since the guides 4 and 5 regulate the part A from the four directions, the passage space for the part A when passing from the guide 4 to the guide 5 is very narrow. For this reason, the part A may not be smoothly transferred from the bowl 1 to the linear feeder 2.

  Specifically, lead terminals, resin burrs, and the like of the part A were caught by the guide 4 and did not come out of the guide 4 or the whole part A could not enter the guide 5 side. That is, in the conventional component supply apparatus, the use of the four-surface guides 4 and 5 in order to maintain the posture of the aligned components A makes it difficult to transfer the components A, and the clearance A may become clogged with the components A.

  Further, since a gap 6 is formed between the guides 4 and 5 in the conveying direction of the part A, even if the gap 6 is shorter than the length dimension of the part A, as shown in FIG. In some cases, the edge (the right edge in the drawing) of the part A coming out of 4 does not reach the guide 5 side.

  For example, when the bowl 1 and the rectilinear feeder 2 stop vibrating, the gap 6 has an interval of 0.15 mm, and the amplitude width of the bowl 1 and the rectilinear feeder 2 is ± 0.15 mm and ± 0.1 mm, respectively. The distance of 6 is 0.4 mm at the maximum. If a part A having a length of 0.6 mm is connected to such a gap 6, there is a case where the bottom surface of the part A does not reach either one of the guides 4 and 5.

  At this time, the component A is inclined obliquely downward and falls into the gap 6. After the gap 6 has spread the most, the bowl 1 and the linear feeder 2 swing in the direction in which the gap 6 narrows, so that the guides 4 and 5 may bite and damage the part A in the gap 6. That is, the part A cannot fall over the gap 6 and falls into the gap 6, and the part A may be clogged.

  When the part A is clogged in the gap 6, a crack occurs in the part A due to an impact when clogged or a collision with the part A conveyed from behind, and the yield is reduced. In addition, if the part A is clogged into the gap 6, the part supply device must be stopped once and the clogged part A removal operation must be performed, and the operating rate of the apparatus deteriorated.

  Furthermore, the amplitude amount of the bowl 1 and the linear feeder 2 tends to increase at present when it is desired to improve the component conveying capability of the component supply device. If the amplitude amount of the bowl 1 and the linear feeder 2 is increased, the maximum interval of the gap 6 is increased in proportion thereto, so that the possibility that the part A falls into the gap 6 and becomes clogged increases. Therefore, there is an urgent need to avoid clogging of parts.

  As described above, in the conventional component supply apparatus, when the component A is transferred from the bowl 1 side to the linear feeder 2 side, the component A may receive the vibration force of the bowl 1 and change its direction. There was a possibility of mistakes. Further, in the conventional component supply apparatus, the component A is likely to be clogged in the gap 6 between the bowl 1 and the linear feeder 2, resulting in a decrease in yield and operating rate.

  The present invention has been proposed in order to solve the above-described problems, and its object is to eliminate a gap in the conveying direction between the bowl and the linear feeder and align the parts on the linear feeder side. Accordingly, it is an object of the present invention to provide a component supply apparatus that prevents the occurrence of a conveyance mistake and clogging of components in a gap and improves the yield and the operation rate.

  In order to achieve the above object, the present invention aligns the direction of the component with a bowl that conveys the component spirally by vibration, a linear feeder that receives the component from the bowl and unloads the component linearly. In the component supply device including a magnet, the magnet is installed in the linear feeder, and the bowl is provided with a guide for placing the component on a connecting portion of the component from the bowl to the linear feeder. It is arranged so as to cover the linear feeder.

  In the present invention as described above, by arranging the magnet in the linear feeder, the parts can be aligned by the magnet after being transferred from the bowl to the linear feeder. In other words, after aligning the direction of the parts with the magnet, it is only carried out by the linear feeder, so there is no fear that the aligned parts will be disturbed in posture. For this reason, generation | occurrence | production of a conveyance mistake can be suppressed.

  Further, when the parts are transferred from the bowl to the linear feeder, the parts are not aligned, so that the posture does not have to be strictly maintained. Therefore, a guide or the like for regulating the parts from four directions is unnecessary, and the parts whose positions are not regulated are smoothly transferred from the bowl to the linear feeder, and the parts are not likely to be clogged.

  In addition, in the present invention, the bowl-side guide covers the linear feeder, and the vibrating bowl and the linear feeder escape in the height direction. As a result, it is possible to eliminate a gap that is vacated in the conveying direction such that the component fits in the connecting portion of the component from the bowl to the linear feeder, and it is possible to reliably prevent clogging of the component.

  According to the component supply device of the present invention, a configuration in which a magnet is installed on the linear feeder side and the end edge of the bowl is placed over the linear feeder causes occurrence of a conveyance error and component clogging in the gap. Can be reliably avoided, and the yield and availability are greatly improved.

1 is a plan view of an exemplary embodiment of the present invention. The top view of the magnet part of this embodiment. The side view of the guide part of this embodiment. The principal part front view of this embodiment. The top view of the conventional component supply apparatus. The top view of the magnet part of the conventional component supply apparatus. The side view of the magnet part of the conventional component supply apparatus. The top view of the guide part of the conventional component supply apparatus. The front view of the guide part of the conventional component supply apparatus.

(1) Configuration of Representative Embodiment Hereinafter, a representative embodiment according to the present invention will be specifically described with reference to FIGS. 1 is a plan view of the present embodiment, FIG. 2 is a plan view of a magnet portion of the present embodiment, FIG. 3 is a side view of a guide portion of the present embodiment, and FIG. 4 is a front view of the main part of the present embodiment. In addition, this embodiment is a magnet-type component supply apparatus similarly to the conventional example shown in FIGS. 5 to 9, and the shape of the component A is also the same.

  As shown in FIG. 1, the rectilinear feeder 12 is provided sufficiently longer in the conveying direction of the part A than the conventional rectilinear feeder 2 and is attached closer to the center of the bowl 1 than the tangent to the bowl 1. . The structural feature of the present embodiment is that the magnet 13 is installed not in the bowl 1 but in the linear feeder 12.

  More specifically, the magnet 13 is installed in the vicinity of the center of the attachment portion to the bowl 1 side in the linear feeder 12. That is, in the present embodiment, the component A is selected and aligned by the magnet 13 not on the bowl 1 side but on the rectilinear feeder 12 side.

  The rectilinear feeder 12 is arranged so as to overlap the bowl 1. At the edge of the rectilinear feeder 12 that overlaps with the bowl 1, a charging port 12 a for the part A is formed at the left end in FIG. 1 so as to face the upper end of the guide surface 1 c of the bowl 1.

  Further, at the edge of the linear feeder 12 that overlaps with the bowl 1, a return hole 12 b is provided near the right end in FIG. 1 to return the component A that is facing in the different direction even after passing through the magnet 13 to the bottom of the bowl 1. It is opened (see FIG. 2). The return hole 12b is set to a width dimension that allows only the part A facing in the positive direction (transverse direction) to pass through, and the part A facing in the different direction (for example, the vertical direction) is fitted into the opening and is lowered. It drops to the bowl 1 side.

  As shown in FIG. 3, at the upper end of the guide surface 1c of the bowl 1, a two-way guide 14 for restricting the component A from the lower surface and one side surface is provided at the connecting portion of the component A to the linear feeder 12. Yes. A part that regulates the lower surface of the part A is a lower surface guide part 14a, and a part that regulates a side surface of the part A is a side guide part 14b. Also, as shown in FIG. 4, the edge of the two-way guide 14 is wrapped so that the bowl 1 and the linear feeder 12 oscillate so that they are evenly separated from each other even when they are farthest from each other. Has been placed.

(2) Operation of the present embodiment In the present embodiment having the above-described configuration, a large number of parts A having different directions are put into the bottom 1a of the bowl 1, so that the part A is placed at the upper edge of the bowl 1 by the vibration of the bowl 1. It is the same as that in the conventional example until the part 1b is raised along the guide surface 1c.

  In the conventional example, the part A in the vicinity of the upper edge 1b of the bowl 1 is aligned with the magnet 3 on the bowl 1 side. However, in this embodiment, the magnet 3 is not installed on the bowl 1 side. . For this reason, the direction of the component A remains in a disjoint state. In the present embodiment, such disjointed parts A are transferred from the bowl 1 side toward the input port 12a of the linear feeder 12 by pouring from above. When the part A is transferred from the bowl 1 side to the linear feeder 12, the part A is regulated by the guide 14 from two directions.

  Since the guide 14 only regulates the lower surface and one side surface of the component A from two directions, the guide 14 is a minimum guide necessary for conveying the component A, and the position of the component A is regulated from the opposite side of the guide 14. Absent. That is, unlike the guides 4 and 5 in the conventional example, the part A is not restricted from the four directions of up, down, left, and right. Therefore, not only the lead terminals of the parts A but also how much the parts A overlap each other, the parts A can be poured from the bowl 1 side to the linear feeder 12.

  Moreover, the parts A are usually in a line when they reach the upper edge of the bowl 1. For this reason, even if the row of the parts A collapses due to the insertion into the linear feeder 12, an extremely large number of parts A are rarely introduced quantitatively. In addition, the insertion port 12a has a space in which a plurality of parts A can be input. Therefore, the parts A can be smoothly fed out to the magnet 13 side without the many parts A staying in the vicinity of the insertion port 12a.

  Further, in the conventional example, the four guides 4 and 5 are provided in both the bowl 1 and the linear feeder, but these guides 4 and 5 are required because they regulate minute parts A from the top, bottom, left and right. High accuracy and high cost. On the other hand, in this embodiment, only the two guides 14 are provided on the bowl 1 side, and no guide is required on the linear feeder 12 side. Therefore, a significant cost reduction can be realized as compared with the conventional example.

  Furthermore, in this embodiment, the edge part of the guide 14 of 2 directions is wrapped above the rectilinear feeder 12 (refer FIG. 3). That is, the bowl 1 and the rectilinear feeder 12 have escaped in the height direction, and no gap is left in the conveying direction of the component A at the connecting portion of the component A from the bowl 1 to the rectilinear feeder 12. Therefore, unlike the conventional example, the component A does not fall over the gap 6 without being able to straddle the gap 6 that is open in the horizontal direction.

  When the part A fed into the linear feeder 12 as described above approaches the magnet 13, the iron-based lead terminals are attracted along the magnetic lines of the magnet 13, and the part A is forcibly aligned in the lateral direction. Can be aligned in the positive direction (see FIG. 2). The part A that has been passed in front of the magnet 3 but remains in a different direction falls into the return hole 12b of the linear feeder 12 and slides on the inner wall surface of the bowl 1 to the bottom 1a.

(3) Effects of the present embodiment The effects of the present embodiment as described above are as follows. In this embodiment, since the components A are forcibly aligned using the magnet 13, the yield is good. Moreover, the parts A are aligned on the linear feeder 12 side, and there is no gap 6 in the transport direction between the bowl 1 and the linear feeder 12. Accordingly, it is possible to prevent the occurrence of a conveyance mistake in which the components A in different directions are mixed and the component clogging in the gap 6.

  Thereby, generation | occurrence | production of the crack in the components A can be avoided and a yield can be raised further. Further, since the part A is not fitted into the gap 6 between the bowl 1 and the linear feeder 12, the operation of removing the clogged part A is unnecessary, and the operating rate of the apparatus can be increased. Furthermore, in this embodiment, even if the parts A are poured from the bowl 1 side to the linear feeder 12 as the parts A overlap with each other, there is no possibility of clogging the parts. Therefore, it is possible to greatly increase the parts conveyance capability.

(4) Other Embodiments The present invention is not limited to the above-described embodiments. For example, the strength and shape of the magnet's magnetic force, the position or number of positions in the linear feeder, and the like can be changed as appropriate. It is. Further, a mechanism for returning parts in different directions from the rectilinear feeder side to the bowl side can be appropriately selected such as a method using various sensors in addition to the return hole described above.

DESCRIPTION OF SYMBOLS 1 ... Bowl 2, 12 ... Straight feeder 3, 13 ... Magnet 4, 5, 14 ... Guide 6 ... Crevice A ... Parts

Claims (4)

In a component supply apparatus composed of a bowl that spirally conveys a component by vibration, a linear feeder that receives the component from the bowl and linearly unloads the component, and a magnet that aligns the direction of the component,
The magnet is installed in the linear feeder,
The bowl is provided with a guide for placing the component on a connecting portion of the component from the bowl to the linear feeder,
The component supply device according to claim 1, wherein the guide is disposed so as to cover the linear feeder.   The component feeder according to claim 1, wherein the rectilinear feeder is configured to return components selected as components in different directions by the rectilinear feeder to the bowl side.   The component supply apparatus according to claim 1, wherein the guide includes a two-way guide that guides the component from a lower surface and one side surface.   The component feeder according to any one of claims 1 to 3, wherein the linear feeder is formed with a slot into which a plurality of components can be loaded.

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