JP2003177150A - Conveyance and discharge device for electronic parts - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conveyance and discharge device for electronic parts capable of reducing greatly the installation space, hardly generating a jump-out of chip type electronic parts to the outside in the radial direction caused by conveyance, capable of holding the chip type electronic parts stably in the accurate direction during conveyance, and dispensing with replacement of a conveyance member even when the chip type electronic parts have mutually different external sizes. <P>SOLUTION: This conveyance and discharge device for electronic parts is equipped with a disc-shaped conveyance member 6 having a plurality of cavities 11 arranged thereon at prescribed pitches, and a motor for rotating intermittently the conveyance member. In the conveyance discharge device, the chip type electronic part 12 is held in contact with a cavity face 11a positioned on the outside in the radial direction of the conveyance member in the cavity 11, and a device for moving the chip type electronic part 12 held in the cavity 11 to the inside in the radial direction of the conveyance member and discharging it to a discharge shoot 15 is installed, and a storage vessel 9 for storing the chip type electronic part is installed under the discharge shoot 15. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component carrying / discharging device for carrying and discharging a chip type electronic part and storing it in a container.

[0002]

2. Description of the Related Art Conventionally, when manufacturing chip-type electronic components such as multilayer capacitors, the characteristics of the manufactured chip-type electronic components have been measured to select good products and defective products. In particular, there is a strong demand for efficiently measuring the electrical characteristics of a large number of chip-type electronic components and performing sorting.

Japanese Unexamined Patent Publication No. 63-118672 discloses a characteristic selection device for this type of chip-type electronic component. The transport / discharge mechanism of such a characteristic selection device is disclosed in, for example, Japanese Patent Application Laid-Open No. 8-215558.

FIG. 5 is a schematic exploded perspective view for explaining a characteristic selection device having a conventional transport and discharge mechanism of this type. The electronic component sorting device 101 includes a motor 102,
The rotating shaft 103 is connected to the motor 102.
A turntable 104 is connected to the rotating shaft 103. The turntable 104 is configured to rotate in the arrow direction shown in the drawing together with the rotating shaft 103 by rotating the motor 102 in the arrow direction shown in the drawing.

On the upper surface of the turntable 104,
A plurality of electronic component storage portions 105 that are open toward the outer peripheral side are formed. A chip-type electronic component 106 is stored in each electronic component storage unit 105.

On the side of the turntable 104,
A discharge chute 107 is arranged. The chip-type electronic component 106 that has completed the measurement is moved in the direction of the arrow A shown in the drawing, that is, toward the outside in the radial direction of the turntable 104, and is guided to the discharge chute 107. Discharge chute 10
7, the discharged chip-type electronic component 106 moves downward, and from the discharge chute 107 to the discharge chute 107.
Is dropped into the storage container 108 arranged below.

By the way, above the turntable 104, the contact probes 110, 11 for selecting are selected.
1 is placed. Contact probe 110, 111
Are connected to the measuring device 112. The contact probes 110 and 111 are brought into contact with the external electrodes 106a and 106b of the chip-type electronic component 106 and used to measure the chip-type electronic component 106.

The measuring device 112 is a chip type electronic component 10.
The characteristic of 6, for example, the capacitance is measured. The measuring device 11
The sorting unit 113 is connected to the unit 2 to sort whether the capacitance is within a predetermined design value range.

When selecting the chip type electronic parts 106 using the selecting unit 113, first, the turntable 1 is selected.
The chip type electronic component 106 is stored in the electronic component storage portion 105 on the upper surface of 04. The chip-type electronic component 106 is stored by, for example, a suction chuck.
6 is stored in each electronic component storage portion 105, or a large number of chip type electronic components 106 stored in a hopper or the like are randomly supplied from outside and above the turntable 104, and the electronic component storage portion 105 It is carried out by storing in.

Next, the characteristics of the chip type electronic component 106 are measured by the contact probes 110 and 111 while the motor 102 is intermittently driven and the motor 102 is stopped, that is, the rotation of the turntable 104 is stopped. To be done. By intermittently driving the motor 102, the characteristics of the plurality of chip-type electronic components 106 arranged along the circumferential direction are sequentially measured. Then, the sorting unit 113 sorts out the chip-type electronic components 106 having good characteristics, that is, the electrostatic capacitance within the design value range, and when the chip-type electronic components 106 having good characteristics come to the position of the discharge chute 107, they are discharged. It is discharged toward the chute 107,
It is stored in the storage container 108.

By the way, in order to perform reliable measurement with the contact probes 110 and 111 in a state where the chip type electronic component 106 is stored in the electronic component storing section 105 of the turntable 104, the chip type electronic component 106 is stored in the electronic component storing section. It must be kept in the correct position and stable within section 105.

Therefore, the shape of the electronic component housing portion 105 is configured to match the outer shape of the supplied chip type electronic component 106 so that the chip type electronic component 106 can stably hold its posture. Was there. Further, in order to surely position the chip-type electronic component 106 in the electronic-component housing portion 105, a method of sucking the chip-type electronic component 106 inward in the radial direction by a vacuum suction source has also been used. When the chip-type electronic component 106 was moved to the discharge chute 107, the suction was stopped and the chip-type electronic component 106 was moved to the discharge chute 107 side by an air shooter (not shown).

[0013]

In the conventional electronic part sorting apparatus 101, the chip type electronic parts 106 are discharged outward in the radial direction of the turntable 104. Therefore, the discharge chute 107 and the storage container 108 have to be arranged outside the turntable 104. Therefore, the installation space of the sorting apparatus 101 is inevitably large.

Further, in the transfer mechanism of the conventional electronic component sorting apparatus, in order to hold the attitude of the chip type electronic component 106 stably during the transfer, the chip type electronic component 106 is directed to the inside of the turntable 104 in the radial direction. I had to aspirate. Therefore, since the centrifugal force generated by the rotation of the turntable 104 and the suction force of the vacuum suction source oppose each other, the suction force becomes low and the attitude of the chip-type electronic component 106 tends to tilt. In the case of bare-footing, the holding force is reduced, and the chip-type electronic component 106 may jump out from the electronic component housing portion 105 of the turntable 104 to the outside in the radial direction. Since the centrifugal force increases as the turntable 104 is rotated at a higher speed, such a problem is likely to occur, and thus it has been difficult to efficiently convey a large amount of chip-type electronic components 106.

In addition, as described above, the chip-type electronic component 1
Chip type electronic component 10 in order to convey 06 with high accuracy.
6 must be held in the electronic component storage unit 105 in the correct orientation. Therefore, the electronic component storage unit 105 has a shape such that the attitude of the chip-type electronic component 106 is maintained. Therefore, when carrying chip electronic components having different outer dimensions, it is necessary to prepare a turntable in which the shape of the electronic component storage unit 105 is different for each chip electronic component. As a result, the cost of the turntable increases and the turntable 104 increases.
The work of replacing the was complicated.

The object of the present invention is to solve the above-mentioned drawbacks of the prior art, to reduce the installation space, to hold the attitude of the chip-type electronic component on the turntable in a stable manner, and to further turntable. Another object of the present invention is to provide an electronic component transporting / discharging device capable of reducing the types of transporting members such as the above and omitting complicated turntable replacement work.

[0017]

According to a broad aspect of the present invention, there is provided a device for transporting and sorting chip type electronic components, the device being arranged at a predetermined pitch along the circumferential direction, and A circle having a plurality of cavities into which chip-type electronic components are put, and a plurality of discharge chutes each of which is connected to the plurality of cavities and which has an electronic component dropping port opened at the end A plate-shaped carrier member, a driving device connected to the carrier member so as to rotate the carrier member intermittently, and a chip-type electronic component placed in the cavity of the carrier member in the cavity in a radial direction of the carrier member. An electronic component holding means for contacting and holding the cavity surface located outside and a chip type electronic component held in the cavity are moved inward in the radial direction of the carrier member. Conveyance and ejection of electronic parts, comprising means for discharging to the discharge chute and a storage container which is arranged below the transfer member and stores the chip-type electronic parts discharged from the drop port of the discharge chute. A device is provided.

In a particular aspect of the present invention, the electronic component holding means is a centrifugal force when the conveying member is rotated by the driving device. In this case, the centrifugal force generated by the rotation of the conveying member by the drive unit causes the centrifugal force on the cavity surface located radially outside the cavity without the need for a special device. Are contacted with each other, and the posture is surely maintained.

However, as the electronic component holding means, a suction source for sucking the chip-type electronic component may be further provided on the cavity surface, and in this case, the chip-type is caused by the vacuum suction force and the centrifugal force. The electronic components are more reliably held in the correct orientation.

When the means for ejecting the chip-type electronic component is the gas ejection means for ejecting the gas inward in the radial direction of the conveying member in the cavity, the gas is ejected from the gas ejection means. The chip type electronic components can be sequentially moved outward in the radial direction and can be discharged to the discharge chute.

In a further specific aspect of the present invention, as the storage container, there are provided a first storage container for storing a non-defective electronic component and a second storage container for storing a defective electronic component. Accordingly, the electronic components determined to be non-defective and the electronic components determined to be defective by the characteristic measurement and selection can be sorted and stored in the first and second storage containers, respectively.

In the present invention, a storage container may be arranged below each of the plurality of discharge chutes of the conveying member. In that case, the chip type electronic parts are discharged immediately after the characteristics are measured. Can be stored in a storage container corresponding to the discharge chute.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be clarified by describing specific embodiments of the present invention with reference to the drawings.

FIG. 1 is an exploded perspective view of an electronic component carrying / discharging device according to an embodiment of the present invention. The electronic component carrying / discharging device 1 according to the present embodiment includes a motor 2. A rotary shaft 3 is connected to the motor 2, and the motor 2 is operated so that the rotary shaft 3 is intermittently driven in the direction of the arrow shown in the figure.

A flange 4 is fixed to the tip of the rotary shaft 3. A ring-shaped fixed table 5 is arranged above the motor 2. On the fixed table 5,
A ring-shaped base member 6 that constitutes a disk-shaped transport member is placed together with a top plate 8 described later. Base member 6
An opening 6a is formed in the center of the. Further, the tip of the rotating shaft 3 extends upward through the opening 6a. The base member 6 is coupled to the rotary shaft 3 so as to rotate together with the rotary shaft 3 by fastening the flange member 7 arranged above to the flange 4. Furthermore, above the ring-shaped base member 6, a top plate 8 that constitutes a transport member is placed.

By operating the motor 2, the ring-shaped base member 6 and the top plate 8 can be rotated together with the rotating shaft 3 together with the rotating shaft. In FIG. 1, a storage container 9 is arranged below the fixed table 5.

On the upper surface of the top plate 8, a plurality of electronic component inlets 8a are provided at a constant pitch in the circumferential direction in the portion from the outer periphery.
Are formed. The electronic component inlet 8a is formed by forming a through hole in the top plate 8. On the other hand, the base member 6 is provided with a cavity 11 which is continuous with the electronic component inlet 8a. The shape of the cavity 11 and the shape of a discharge chute described later will be described with reference to FIG.

As shown in FIG. 2, the ring-shaped base member 6 is formed with a cavity 11 opened on the upper surface of the base member 6. The upper opening of the cavity 11 is communicated with the electronic component insertion port 8a provided on the top plate 8 described above so that the chip type electronic component 12 inserted from the electronic component insertion port 8a can fall into the cavity 11. Is configured. The cavity 11 has a cavity surface 11a. The cavity surface 11a is provided to hold the chip-type electronic component 12 in the correct position. That is, the chip-type electronic component 12 is moved to the outside in the radial direction of the carrying member by the electronic component holding means, which will be described later, on the cavity surface 11a, and is brought into contact with the cavity surface 11a and held.

Since the cavity surface 11a has such an effect, it is preferably formed by a plane extending in the vertical direction. A vacuum / compressed air passage 13 is opened in the cavity surface 11a. The vacuum / pneumatic passage 13 is provided with a groove provided on the lower surface of the ring-shaped base member 6 and
And a liquid path provided in the. By suctioning the vacuum from the vacuum and compressed air path 13, the chip-type electronic component 12 is held on the cavity surface 11 a of the cavity 11. However, as will be apparent from the description of the operation described below, the chip-type electronic component 11 may be brought into contact with the cavity surface 11a only by using the centrifugal force generated when the transport member is rotated.

In FIGS. 1 and 3, the hatched opening 11b constitutes a portion for guiding the chip-type electronic component 12 to the cavity 11. As shown in FIG. 2, a discharge chute 15 for discharging the chip-type electronic component from the cavity is arranged inside the cavity 11. That is, by releasing the above-mentioned holding of the chip-type electronic component 12 by the electronic-component holding means and supplying compressed air from the vacuum and compressed air path 13 in reverse, the chip-type electronic component 11 is discharged into the discharge port 14 of the discharge chute 15. And the chip-type electronic component 12 is discharged from the drop port 15a opened below the discharge chute 15 into the storage container 9 arranged below.

The transporting and discharging operation of the chip type electronic component 12 using the electronic component sorting apparatus 1 of this embodiment will be described.
First, as shown in FIG. 2, the chip-type electronic component 12 that has been measured by a measuring device (not shown) is supplied from the electronic component supply port 8a of the top plate 8. As a result, the chip type electronic component 12 falls into the cavity 11. In the cavity 11, the chip-type electronic component 12 is moved to the cavity surface 1 by the centrifugal force due to the rotation of the carrier member, and in this embodiment, by the centrifugal force and the vacuum suction from the vacuum and compressed air path 13.
It is held so as to come into contact with 1a. The cavity surface 11a has the chip-type electronic component 1 on the cavity surface 11a.
The chip-type electronic component 12 is configured to be in the correct orientation when the two are brought into contact with each other. Therefore, the centrifugal force,
Alternatively, the centrifugal force and the suction force hold the chip-type electronic component in the correct position. In this state, the motor 2
The transport member is rotated by intermittently driving.

After rotating the conveying member, the discharge chute 1
When 5 is located above the first storage container 9 for storing a non-defective product, the holding of the chip-type electronic component 12 is released, and compressed air is supplied to the cavity 11 from the vacuum and compressed air path 13 to obtain a non-defective product. The chip-type electronic component 12 is stored in the storage container 9.

On the other hand, when the measured chip type electronic component 12 is defective, it may be stored in the second storage container 10 shown in FIG. 1 instead of the storage container 9. That is, when the discharge chute 14 is located above the second storage container 10, compressed air is supplied into the cavity 11,
The defective chip-type electronic component 12 may be stored in the storage container 10. In this way, the chip-type electronic component 1
2 can be sorted and stored.

In the electronic component carrying / discharging device 1 of the present embodiment, after the characteristics of the chip type electronic component 12 are measured,
Chip-type electronic component 12 toward the inner side of the conveying member in the radial direction
Are moved and discharged to the storage container 9 or the storage container 10 via the discharge chute 15. Therefore, the discharge chute 1
5 and the storage containers 9 and 10 can be arranged below the ring-shaped base member 6, so that the installation space can be significantly reduced as compared with the conventional device.

Moreover, the chip-type electronic component 12 is held in the correct orientation only by using the cavity 11 having a larger volume than the chip-type electronic component 12 and bringing the chip-type electronic component 12 into contact with the cavity surface 11a. . Therefore, even when the chip-type electronic components having different outer dimensions are carried and discharged, it is not necessary to replace the carrying member. Therefore, it is possible to reduce the cost of the transporting / discharging device and to omit the complicated replacement work of the transporting member.

Further, in the conventional conveying / discharging device 101,
When the holding of the chip-type electronic component is insufficient, the chip-type electronic component may jump out from the storage portion, whereas in the present embodiment, the chip-type electronic component is locked by the cavity surface 11a. Since the electronic component 12 is retained, the chip-type electronic component is reliably prevented from protruding outward in the radial direction of the conveying member. Therefore, even if the rotation speed of the transport member is increased, the chip-type electronic component 12 is stably held, so that the chip-type electronic component 12 can be transported and discharged at high speed and reliably.

In the above embodiment, the first storage container 9 for storing the good chip-type electronic components and the second storage container 10 for storing the defective chip-type electronic components are provided. As shown in the partially cutaway plan view of FIG. 4, storage containers may be arranged below the respective discharge chutes.
In this case, for example, by arranging the first storage container 9 and the second storage container 10 alternately in the circumferential direction, the chip-type electronic component whose characteristics are measured without significantly rotating the transport member. Can be discharged to the first or second storage container 9, 10.

That is, in the above-described embodiment, the chip type electronic component 12 whose characteristics have been measured must be transported to the position where the first and second storage containers 9 and 10 are provided. In the configuration shown in FIG. 4, if the chip-type electronic component 12 whose characteristics have been measured is a good product, and if the first storage container 9 is located below the chip-type electronic component 12, the chip-type electronic component 12 should be immediately discharged. Of course, when the storage container located below is the second storage container 10, the chip-type electronic component whose characteristics are measured on the second storage container 10 by rotating the transport member slightly The chip-type electronic component 12 may be discharged by positioning the discharge chute 15 connected to the cavity in which the 12 is stored. Therefore, the chip-type electronic component can be efficiently transported and discharged.

The present invention can be used for discharging various chip type electronic parts as well as the multilayer capacitor.

[0040]

In the chip-type electronic component carrying / discharging device according to the present invention, the carrier member, which is intermittently rotated by the driving device, is provided with a cavity into which the chip-type electronic component is inserted, and the diameter of the cavity is provided. The chip-type electronic component is brought into contact with the cavity surface located outside in the direction, and the chip-type electronic component is held in the correct orientation in the cavity. Therefore, even if a centrifugal force is generated when the conveying member is rotated, there is no fear that the centrifugal force will cause the chip-type electronic component to fly out to the outside in the radial direction of the conveying member.

Not only the centrifugal force also acts as the electronic component holding means, but the electronic component can be securely held in the cavity while maintaining the correct orientation.
Further, at the time of discharging, since the chip-type electronic component is moved radially inward, it is not necessary to dispose the discharging chute and the storage container radially outside the conveying member. Therefore, the discharge chute and the storage container can be arranged below the conveying member, and the installation space for the electronic component conveying and discharging device can be significantly reduced.

Not only the chip-type electronic component is held in the attitude by bringing the chip-type electronic component into contact with the cavity surface, but even when the chip-type electronic components having different outer dimensions are used. Therefore, it is not necessary to replace the carrying member, and the cost of the carrying member can be reduced and complicated replacement work can be omitted.

[Brief description of drawings]

FIG. 1 is an exploded perspective view for explaining an electronic component carrying / discharging device according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view for explaining a main part of the electronic component carrying / discharging device shown in FIG.

FIG. 3 is a schematic partial cutaway plan view for explaining the electronic component carrying / discharging device shown in FIG. 1;

FIG. 4 is a partially cutaway plan view for explaining a modified example of the electronic component carrying / discharging device according to an embodiment of the present invention.

FIG. 5 is a schematic exploded perspective view for explaining a conventional transporting and discharging device for electronic components.

[Explanation of symbols]

1 ... Electronic component transport and discharge device 2 ... Motor (drive device) 3 ... Rotary axis 4 ... Flange member 5 ... Fixed table 6 ... Ring-shaped base member 7 ... Flange 8 ... Top plate 9 ... First storage container 10 ... Second storage container 11 ... Cavity 11a ... Cavity surface 12 ... Chip type electronic component 13 ... Suction path 14 ... Discharge path 15 ... Discharge chute

Claims (6)

[Claims] 1. A device for transporting and ejecting chip-type electronic components, comprising a plurality of devices arranged at a predetermined pitch along the circumferential direction, and each of which has chip-type electronic components loaded therein. A disc-shaped conveying member having a cavity and a plurality of discharge chutes each connected to the plurality of cavities and having an electronic component dropping port opened downward at an end; and the conveying member intermittently. A drive device connected to the carrier member for rotation, and for holding the chip-type electronic component put in the cavity of the carrier member in contact with the cavity surface located radially outside the carrier member in the cavity. Electronic part holding means, and means for moving the chip-type electronic parts held in the cavity to the inside in the radial direction of the transfer member and discharging the chip type electronic parts to the discharge chute. It is disposed below the conveying member, and a receiving container receiving the chip-type electronic component which is discharged from the fall opening of the discharge chute, the transport discharge device for electronic components. 2. The electronic component carrying / discharging device according to claim 1, wherein the electronic part holding means is a centrifugal force when the carrying member is rotated by a driving device. 3. The electronic component carrying / discharging device according to claim 1, further comprising, as the electronic component holding means, a suction source for sucking a chip-type electronic component on the cavity surface side. 4. The gas ejecting means for ejecting gas toward the inner side in the radial direction of the conveying member in the cavity, as the means for ejecting the chip-type electronic component. Electronic component transport and discharge device. 5. The storage container according to claim 1, wherein the storage container has a first storage container for storing non-defective electronic components and a second storage container for storing defective electronic components. A device for discharging and delivering electronic components according to claim 1. 6. A storage container is arranged below each of the plurality of discharge chutes of the conveying member.
4. The electronic component carrying / discharging device according to any one of 3 to 3.