JPH0744076Y2 - Electronic component storage case - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention is mainly used as a means for packing and transporting electronic components having a chip type, and also supplies a plurality of electronic components housed inside to an automatic mounting machine. The present invention relates to a storage case for electronic components used as means.

2. Description of the Related Art Conventionally, as a storage case for this type of electronic component, as shown in FIGS. 7 and 8, a case body 1 is formed in a disc shape from a case substrate portion 1a and a case lid plate portion 1b which are fitted and fixed to each other. Then, as shown in FIG. 7, a storage path 2 for the electronic components spirally provided inside the case main body 1 so that it can be seen through the case cover plate portion 1b formed of a transparent plastic material or the like, and the storage path 2 The electronic component outlet 3 provided on the end surface of the case body 1 so as to be continuous with the storage path 2 from the spiral line 2n located at the outermost periphery of the case through the straight path 2p, and as shown in FIG. An air feed hole 4 provided so as to communicate with the inner surface of the groove of the storage passage 2 from the outer surface of the portion 1a, and a plurality of air feed holes 4 are intermittently sent from the air feed hole 4 to the storage passage 2 to be aligned. The electronic parts to be stored in the storage path 2 It has been proposed to form a pneumatic feed toward No. 3 (Actual No. 2-37892).

In this electronic component storage case, not only a plurality of electronic components can be aligned and stored in the storage path 2, but also the storage path 2 can be stored.
This is preferable because it is possible to accurately pneumatically move the electronic component along the storage path 2 to the outlet 3 only by intermittently sending pressure-feeding air to the.

This electronic component storage case will be described in further detail. To gradually move the electronic component toward the outlet 3, the air feed hole 4 is provided.
4a-4n corresponding to each spiral strip 2a-2n of the storage path 2
If the air supply holes 4a to 4n are provided so as to be aligned in a line, the air supply holes 4a to 4n can be formed so that compressed air can be simultaneously blown from the coupling as described later. In addition, a plurality of other air feeding holes 5a to 5n are arranged in a line from the above-mentioned air feeding holes 4a to 4n so as to be aligned with each other, and the air feeding holes 4a to 4n and 5a to 5n are arranged relative to each other. If the electronic components are moved clockwise and counterclockwise in each vertical half of the case body 1 by blowing the pressure-feeding air in the direction, the spiral parts 2a to 2n are gradually swung to the opening side of the outlet 3 from the top. While sliding down from the top by its own weight, the electronic components can be individually and stably moved toward the outlet port 3 by air pressure.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention By the way, as shown in FIG. 10, the above-mentioned air feeding holes 4 to 5 are inclined obliquely because it is necessary to feed the compressed air in the forward direction with respect to the feeding direction X of the electronic component, and In order to apply air pressure to the electronic components vigorously, it is preferable to form them in a slit shape. Further, in order to form the air feeding holes 4 to 5, it is possible to provide the case substrate portion 1a by post-processing after forming the case substrate portion 1a. At the time of die-cast molding, it is preferable that the air feeding holes 4 to 5 are simultaneously molded.

However, a plurality of extremely fine protruding pins having the same size as the air feeding holes 4 to 5 must be provided upright on the mold surface in the molding die forming the storage case, and as described above, the air feeding holes must be provided. When the insertion holes 4 and 5 are formed to be inclined relative to each other, it is necessary to provide a plurality of projecting pins on the mold surfaces facing each other, so that the mold for forming the case substrate portion 1a becomes extremely complicated. In addition, if the projecting pin is obliquely erected, the case substrate portion 1a must be detached from the molding die while being relatively slanted when the case substrate portion 1a is demolded. It is easy for the protruding pin to be lost due to this.

In view of the above, an object of the present invention is to provide a storage case for electronic parts, which has an improved structure of the air supply hole so that the case body can be molded with the air supply hole with a simple mold structure.

In an electronic component storage case according to the present invention, an inner surface of a hole serving as a rear wall of an air feeding hole is formed with a slope inclined forward with respect to the feeding direction of the electronic component, and the air feeding is performed. The inner surface of the hole, which is the front wall that is positioned relative to the inner surface of the rear wall of the insertion hole, is formed toward the inner surface of the groove of the storage path by a slope or a vertical surface having a steeper slope than the inner surface of the rear wall. , The opening located inside the groove of the storage path is formed smaller than the outer shape of the electronic component in accordance with the inner surface of these holes, and the opening located on the outer surface side of the case body is formed relatively large. It is configured by providing an air inlet hole that is wide on the outer surface side of the main body and narrows toward the inner surface of the groove of the storage path. In addition, in the case of storing the electronic parts, the inside of the groove of the storage path is made to project from the vicinity of the opening into the hole, and when the compressed air is blown, the inner surface of the hole, which is the rear wall of the air feeding hole, is displaced and displaced. It can be configured by providing an air guide fin on the inner surface of the hole to be the front wall.

Function In this electronic component storage case, the opening inside the groove of the storage path is formed smaller than the outer shape of the electronic component, so that the pressure-fed air can be forcefully sent into the storage path.
Further, since the air inlet hole is formed wide on the outer surface side of the case body and narrowed toward the inner surface of the groove of the storage passage, the side of the case substrate having the substantially air trapezoidal shape is used as a mold for the air inlet hole. It is possible to use a thin plate-shaped projecting piece that is formed on the mold surface in a standing manner. Therefore, this electronic component storage case can be formed not only by a mold having a simpler structure than by providing an extremely thin projecting pin, but also by providing two rows of air feed holes each having a slope inclined relative to each other. Even at this time, it can be formed by a molding die in which the projecting piece corresponding to each row is provided on the die surface side for shaping the outer surface of the case substrate portion. When the mold is removed, the projecting piece can be removed without moving the case main body relatively obliquely from the molding die, so that the situation in which the projecting piece is lost can be prevented.

When the air guide fin is provided in this air feed hole, the hollow portion corresponding to the air guide fin may be provided on the plate thickness surface corresponding to the shoulder portion of the projecting piece, and the air guide fin of the air feed hole is provided. Even the storage case provided in the hole can be formed in the same manner as described above. Further, since the air guide fins are biased closer to be positioned substantially parallel to the slope which is the rear wall of the air feed hole as the blown air is blown, the air feed fins are moved from the opening located on the storage path side to the electronic position. It becomes possible to guide and feed the parts inside the storage path extremely efficiently in the feeding direction of the parts.

EXAMPLE The following will describe the present invention with reference to FIGS. 1 to 6 together with FIGS. 7 to 9.

The electronic component storage case shown in FIG. 1a is, like the one shown in FIGS. 7 to 9, a case substrate portion which is fitted and fixed to each other.
A disk-shaped case body 1 is formed from the case cover plate 1b and the case cover 1a. Inside the case body 1, there is provided a spirally continuous storage path 2 for aligning a plurality of electronic components and accommodating a plurality of them. (Omitted) is provided on the end surface of the case body 1. The common components are designated by the same reference numerals as those shown in FIGS. 7 to 9, but the storage case for the electronic parts made of mushrooms is provided with an air feed communicating from the outer surface of the case body 1 to the inner surface of the groove of the storage path 2. As the insertion hole 40, one having an outwardly expanding shape is formed. The air feed hole 40 is provided in the case substrate portion 1a of the case body 1,
The hole inner surface 41, which is the rear wall, is forward with respect to the feeding direction X of the electronic component moving along the inner surface of the groove of the storage path 2 with respect to the feeding direction X of the electronic component, and is approximately 30 with respect to the outer surface of the case substrate 1a. It is formed as a slope inclined at an angle of °. Further, the hole inner surface 42, which is the front wall surface, which is positioned relative to the hole inner surface 41, which is the rear wall, is a slope or a vertical surface with a steep climb toward the groove inner surface of the storage path 2 than the hole inner surface 41, which is the rear wall. The inner surface 42 of the hole is formed as a vertical surface in the illustrated embodiment. Corresponding to the inner walls 41, 42 of the rear wall and the front wall, the opening 43 located on the inner surface of the groove of the storage path 2 is formed smaller than the outer shape of the electronic component. Further, the opening 44 located on the outer surface side of the case body 1 is formed relatively large, and with these openings 43, 44, it is wide on the outer surface of the case body 1 and narrow toward the inner surface of the groove of the storage passage 2. Air feed hole 40
Is provided. The air feeding hole 40 can be formed in a long hole shape by arranging the opening 44 along the spiral direction of the storage passage 2 as shown in FIG. 1B, and if the hole width w is formed to about 0.4 mm. Is enough. As shown in FIG. 9, a plurality of the air supply holes 40 are provided side by side on the case substrate portion 1a of the case body 1 so as to correspond to the spiral lines of the storage path 2, and the inclination directions thereof are made to face each other. Row spacing can be separated. Further, the case body 1 is provided outside the case substrate portion 1a so that a rising edge 6 having a flat elliptical shape and fitted with a coupling for injecting the below-mentioned compressed air surrounds each row of the air inlet holes 40. It is integrally molded by protruding it to the side surface.

The electronic component storage case configured as described above is shown in FIG.
The case substrate portion 1a of the case body 1 can be formed using the molding die 10 as shown in FIG. As a mold side for shaping the outer side surface of the case substrate portion 1a, the projecting pieces 11, 1 having a substantially ladder shape corresponding to the side shape of the air feeding hole 40 and having a plate thickness corresponding to the hole width w.
A plurality of 1 ... Standing parallel to each other at a predetermined pitch may be provided on the mold surface, and an elliptical concave groove 12 may be provided so as to surround the periphery. Further, as described above, when forming the two rows of the air feeding holes, a plurality of two rows of the protruding pieces 11, 1 are used.
It is sufficient to provide a concave groove 12 that surrounds 1 ... And each projection piece 11, 11. In addition, a groove for forming a reinforcing rib or the like can be provided on the mold surface. In this molding die 10, it is sufficient to form, as the protruding pieces 11, 11 ... Forming the air feeding hole 40, a side surface having a substantially trapezoidal shape in which the base side standing upright from the die surface is wide and the protruding end side is narrow. Can be configured as a relatively simple one. When the mold is removed after the case substrate 1a is formed, the projecting piece 11 can be easily removed from the air feed hole 40 by separating the case substrate 1a upward as shown in FIG. 1d. Therefore, the situation in which the projecting piece 11 is lost does not occur. As shown in FIG. 2, an air guide fin 45 is projected into the air feeding hole 40 from a position near the opening 43 located inside the groove of the storage path 2 and an inner surface of the hole of the front wall.
42 can be provided. The air guide fins 45 are formed so as to move closer to the inner surface 41 of the hole, which will be the rear wall, as the compressed air is blown in.
Molding can be performed with concave grooves formed by partially cutting the plate thickness on the vertical surfaces of 1,11 ....

In the electronic component storage case described above, as shown in FIG. 3, the electronic components are separated one by one from the spiral strip 2n located at the outermost periphery of the storage passage 2 to the continuous electronic component outlet 3 via the straight path 2p. It is better to equip it with a shutter 7 that sends it out. The shutter 7 is a latching claw that projects into the opening of the outlet 3.
7a, the intermediate side in the longitudinal direction is supported by a stop pin 7b, and the other end side of the hook 7a is elastically supported by a spring 7c so as to be able to be displaced through the stop pin 7b. Can be installed on. Further, as shown in FIG. 7, it is preferable to provide a plurality of rows of discharge holes 8a to 8n, 9a to 9n for the compressed air in the upper half of the plate surface of the case body 1 so as to correspond to the air inlet holes 40. The air discharge holes 8a to 8n and 9a to 9n may be formed in the case lid plate portion 1b by being aligned in the radial direction from the central position of the case body 1 in correspondence with the spiral lines 2a to 2n of the storage passage 2. it can.

As shown in FIG. 4, this electronic component storage case can be installed in an automatic electronic component feeder with the electronic component outlet 3 positioned at the lower corner. The automatic supply device for the electronic parts is a mechanism 20 for supplying compressed air and a shutter 7.
The operating mechanism 30 of FIG. 2 is provided, and the electronic head can be picked up one by one from the supply device by the suction head H equipped in the automatic mounting machine for electronic parts.

More specifically, the compressed air feeding mechanism 20 includes joints 22 and 23 of the air valve 21, a connecting pipe 24, and a branch pipe 25, and a plurality of rows of air feeding to each tip of the branch pipe 25. A coupling 26 having an opening capable of enclosing the insertion hole 40 as a whole is provided. As shown in FIG. 5, the coupling 26 is a cup-shaped one having a peripheral side wall 26a that fits with an elliptical rising edge 6 provided on the back side of the case substrate portion 1a. It is advisable to equip an O-shaped rubber ring 26b that can be pressure-welded with The coupling 26 is provided with a drive cylinder, a ring, and the like that move toward and away from the back side of the case body 1 when the storage case of the electronic parts is installed on or removed from the base 27 of the automatic feeder. It can be connected and equipped. Further, the shutter operating mechanism 30 is configured to include a push-up pin 32 at the rod tip of the drive cylinder 31.

The pressurizing air feeding mechanism 20 and the shutter actuating mechanism 30 are a base 27 that erects and equips a storage case for electronic components.
Stand support frames 28, 29 for fitting and supporting the case body 1 from the left and right are vertically installed on the plate surface of the base 27. In addition, the base 27 has an outlet 3 for the case body 1.
Is equipped with a cradle 50 that receives electronic components sent from the take-out port 3 at positions corresponding to. The pedestal 50 has a notch groove 50a for receiving one electronic component as shown in FIG.
An air hole 50b is formed diagonally below the inner surface of the cutout groove 50a for acting suction air for electronic components.
In addition, the pedestal 50 is provided with a bracket piece 52 on the axial end side of a sliding bar 51 slidably supported on the lower side of the base 27.
It is mounted so that it can be moved forward or backward in the horizontal direction. Sliding bar as its drive mechanism
A drive cylinder 54, with which the rod tip comes into contact with the protruding piece 53 mounted on the axis of 51, is provided in the horizontal direction of the base 27, and a stopper piece 55 is provided at a predetermined position where the drive cylinder 54 moves forward.
It is arranged so as to project from 27 and come into contact with the pedestal 50. Further, the cradle 50 is tension-supported by a tension spring 56 stretched between an appropriate portion of the base 27 and the shaft rear end side of the sliding bar 51 abuts when the spring 56 retracts. A stopper piece 57 is attached to the base 27. An electronic component mounting head H is vertically movable at an upper position where the pedestal 50 abuts and stops with the stopper piece 55. The mounting head H receives an electronic component sent from the electronic component storage case to the cradle 50 by sucking the electronic component at the tip of the nozzle, and then mounts the printed circuit board on the XY
It works by carrying electronic parts to the table and mounting them on the board surface of the printed circuit board.

In this electronic component automatic supply device, the electronic component storage case is placed on the plate surface of the base 27 by locating the electronic component outlet 3 at the lower corner and directing the plate thickness surface forward as described above. After the equipment is installed upright, the coupling 26 of the air feeding mechanism 20 is fitted to the rising edge 6 of the case body 1, so that the backside of the storage case is fitted. When pressurized air is supplied to the coupling 26 from the air valve 21, the spiral threads 2a ... 2n of the storage path 2 are passed through the air inlet 40.
The compressed air is sent to. The compressed air is 1.5kg /
Blows can be intermittently delivered at intervals of 0.3 seconds per cm ² . In the air feed hole 40 shown in FIG. 1, the compressed air is slanted into the groove of the storage path 2 along the hole inner surface 41 of the rear wall which is inclined forward with respect to the feeding direction X of the electronic component. It can be sent to the corner and can be sent vigorously from the small opening 43,
Even a plurality of electronic components housed in the housing passage 2 can be smoothly pneumatically fed in a predetermined direction by the pressurized air.
Further, in the air feeding hole 40 shown in FIG. 2, the air guide fins 45 are displaced toward the inner surface 41 of the hole which is a rear wall so as to approach the inner surface 41 of the hole as the rear wall is blown. Since a narrow air flow path is formed between them, the compressed air that acts on the electronic component at an oblique angle can be more effectively guided and efficiently fed. The electronic component located at the top of this blown air is the shutter 10 of the outlet 3.
Air valve 21
Shutter 7 with push-up pin 32 that is driven in synchronization with the operation of
Is pressed to open the take-out port 3, and the leading electronic component is pushed out into the notch groove 50a of the pedestal 50 by compressed air. After the push-out, the pedestal 50 moves forward to carry the electronic component to the front position where the suction head H moves up and down, and the suction end is sucked by the nozzle tip of the mounting head H to be taken out to be mounted on the printed circuit board. After separating one electronic component and sending it out, the push-up pin 32 immediately descends and the shutter 30 closes the outlet 3, and then waits until the air valve 21 operates.

Effects of the Invention As described above, according to the storage case for electronic parts according to the present invention, not only can a molding die having a simple mold structure be formed into an inexpensive one, but also a groove of the storage path can be formed from the air feeding hole. The compressed air blown inside enables smooth pneumatic movement of multiple electronic components.

[Brief description of drawings]

FIG. 1a is a sectional view showing an air feed hole in a storage case for electronic parts according to the present invention, FIG. 1b is a plan view of the feed hole, and FIG. 1c is used to form the case. 1d is an explanatory view showing a molding process of a storage case by the same molding die, and FIG. 2 shows a modified example of an air feeding hole in a storage case for electronic parts according to the present invention. FIG. 3 is a sectional view, FIG. 3 is an explanatory view showing a shutter mechanism that can be installed in the same storage case, FIG. 4 is a side view showing an automatic feeder of electronic parts using the same storage case, and FIG. FIG. 6 is a plan view showing a cradle for electronic parts to be equipped, FIG. 6 is a sectional view of a coupling installed in the automatic feeder, and FIG. 7 is a front view showing a storage case for electronic parts which is the background art of the present invention. Fig. 8 is a sectional view of the case, Fig. 9 is a rear view of the case, and Fig. 10a is the same. Cross-sectional view showing the air infeed hole provided in the over scan, the Fig. 10 b is a plan view of the air infeed hole. 1: Case body, 2: Storage passage, 3: Electronic component outlet, 40: Air inlet hole, 41: Rear wall inner surface of hole, 42: Front wall inner surface of hole, 43: Storage passage side opening Hole, 44: hole on the outer surface of the case,
45: Air guide fin, X: Electronic component feeding direction.

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Hiroshi Ikeda 13-13 Nihonbashi, Chuo-ku, Tokyo TDC Corporation (72) Inventor Takeshi Ito 1-13-1 Nihonbashi, Chuo-ku, Tokyo TDC Co., Ltd. (72) Inventor Koji Kudo 1-13-1 Nihonbashi, Chuo-ku, Tokyo TDK Corporation (56) References Sho 60-119799 (JP, U)

Claims (2)

[Scope of utility model registration request] 1. A storage path (2) for electronic parts, which is continuously provided in a spiral shape and is provided inside a case body (1),
The electronic component take-out port (3) provided on the end surface of the case body (1) continuously from the spiral line (2n) located at the outermost periphery of the storage path (2) and the outside of the case body (1). With an air feed hole (40) provided so as to communicate with the inner surface of the groove of the storage passage (2) from the side surface, the air is fed by pressure from the air feed hole (40) to the storage passage (2) intermittently. In a storage case for electronic components in which a plurality of electronic components that are aligned and accommodated in a storage passage (2) are pneumatically fed toward an outlet (3), an inner surface of a hole serving as a rear wall of the air feed hole (40). (41) is formed as an inclined surface that is inclined forward with respect to the feed direction (X) of the electronic component, and serves as a front wall that is located relative to the hole inner surface (41) that serves as the rear wall of the air feed hole (40). Inner surface of hole (42)
Toward the groove inner surface of the storage path (2) is formed by a slope or a vertical surface having a steeper climb than the hole inner surface (41) which is the rear wall, and the storage path is formed in accordance with the hole inner surfaces (41, 42). The opening (43) located inside the groove of (2) is formed smaller than the outer shape of the electronic component, and the opening (44) located on the outer surface of the case body (1) is formed relatively large. The storage case for electronic parts is characterized in that an air inlet hole (40) is provided which is widened on the outer surface side of the case body (1) toward the inner surface of the groove of the storage path (2). 2. A hole which becomes a rear wall of an air feeding hole (40) by the air pressure of the pressure-fed air by projecting into the hole from the opening (43) side located inside the groove of the accommodation path (2). 2. The electronic component storage case according to claim 1, wherein an air guide fin (45) that is displaced closer to the inner surface (41) is provided on the inner surface (42) of the hole that serves as the front wall.