JPH02277300A - Automatic feeder of electronic parts - Google Patents

Abstract

PURPOSE:To send out electronic parts surely from a sending-out port by arranging the constitution such that if the case to store plural pieces of electronic parts is set on a base, the coupling area aligns with the air inflow part of a storage case and electronic parts are sent out by the forcedly fed air through the coupling. CONSTITUTION:If a case 1, wherein plural pieces of electronic parts are drawn up and stored, is set on a base 13, the inflow port 13 for forcedly-fed air provided in the case 1 and the coupling 11 are so positioned as to face each other, whereby it turns out that the coupling 11 surrounds the inflow port 3 for force feed air, and the electronic parts are pushed toward the sending-out port of the storage case 1 gradually by the forcedly-fed air being sent from the inflow port 3 through the coupling 11. The electronic parts are discharged onto a receiver 16 from the sending-out port of the storage case 1. Hereby, the electronic parts can be sent out surely from the sending out port to the outside of the case 1, and the electronic parts are received and caught on the receiver 16 from the sending-out port, whereby those can be taken out stably one by one by a mounting head H.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electronic component feeding device used to individually feed electronic components to be mounted on a printed circuit board surface to a mounting head.

Conventional technology In general, electronic components are supplied in place of packaging methods such as taping, magazines, and bags, in which a plurality of electronic components are housed individually in the space of a case body.
A bulk method is known in which electronic components are sent out individually from that space to the outside of the case (Japanese Patent Laid-Open No. 62-280
No. 129).

Conventionally, a supply device that applies this bulk method has a three-dimensional rectangular space for accommodating electronic components inside the case body, and the case body is positioned diagonally or from the rectangular space to the bottom of the ship. Usually, a continuous slope is provided inside the case body, and the electronic components are sent out individually using air pressure, vibration, etc. through an insertion passage that communicates from the bottom of this space to the outside of the case. .

Problems to be Solved by the Invention However, in this electronic component supply device, electronic components are fed out from a space in which a plurality of electronic components are individually housed through an insertion path with a gap that is large enough for approximately one electronic component to pass through. If electronic components overlap and get caught in the opening on the space side of the insertion passage, it is easy to cause a problem in the smooth feeding of the electronic components. Ancillary equipment such as scattering of components must be provided, and in the electronic component supply device, the electronic components fall into the insertion path under their own weight and line up.
The insertion path is stopped so that it does not move outward from the component outlet that opens outside the case, and a suction nozzle is installed near this outlet to pull out the electronic components sucked at the nozzle tip, allowing the mounting head to move up and down. Since a transportation mechanism must be provided to carry the device to the desired location, it is inevitable that the device will be extremely unstable to carry.

In (2), an object of the present invention is to provide an automatic electronic component feeding device that can reliably feed electronic components to a mounting head with an extremely simple mechanism.

Means for Solving the Problems The automatic electronic component supply device according to the present invention includes a storage case in which a plurality of electronic components are arranged in series and housed in the case, and a storage case that is positioned and held in a replaceable manner. a base for transporting electronic components, a mechanism for feeding pressure air into the case that gradually pushes each electronic component toward the outlet of the storage case, a mechanism for feeding the pressurized air into the case, and a pressure air inflow hole of the storage case. and a cradle that receives the electronic components sequentially discharged from the outlet of the storage case using the air pressure of the pumped air and transports them to the elevating position of the mounting head. There is.

Function: In this electronic component supply device, when a case housing a plurality of electronic components arranged in a row is set on a base, the inflow hole for pressurized air provided in the case and the coupling are positioned relative to each other, causing the coupling to close. surrounds the inflow hole of the pressurized air, and the pressurized air fed from the inflow hole through this coupling can gradually push the electronic components toward the outlet of the storage case. By discharging the electronic components from the outlet onto the receiving stand, the electronic components can be reliably sent out from the outlet to the outside of the case.Also, the electronic components can be received and locked from the outlet to the receiving stand, and the mounting head can hold the electronic components one by one. Gradually, you will be able to take it out stably.

Embodiments will now be described with reference to the accompanying drawings.

This electronic component automatic supply device is installed in an electronic component automatic mounting device that automatically attaches chip-type electronic components such as capacitors and resistors to printed circuit boards.
As shown in FIG. 1, it is commonly used as a mechanism for carrying electronic components sent out from a storage case 1 to a mounting head H that moves up and down at a predetermined position in front.

As shown in FIGS. 2 and 3, the storage case 1 has a flat main body, and the case main body has a support plate 1a that holds a plurality of electronic components aligned and shields the component holding surface of the support plate 1a. It is formed from a plate 1b. A spiral storage path 2 is provided on the surface of the support plate 1a in which a plurality of electronic components can be arranged and accommodated in a predetermined orientation. As shown in Fig. 4, this storage channel 2 is formed by a concave groove having a depth relatively larger than the thickness of the electronic component E, and each station 2a...2n is made to be continuous from the center of the board and adjacent to each other. The support plate 1a is provided over substantially the entire surface of the support plate 1a. In order to allow the electronic components accommodated in the storage path 2 to move smoothly, the support plate 1a is preferably formed using a plate material such as Shellacon, and the inner surface of the storage path 2 is coated with fluorine to prevent static electricity. It is recommended to provide a film.
The cover plate 1b that hides the storage path 2 of the support plate 1a can be made of a transparent plastic material so that the inside can be seen through. At least on the inner circumferential end side 2a of the storage path 2 hidden by the cover plate 1b, an air inflow hole 3 is provided which communicates with the outside of the case and through which compressed air for electronic components is fed. This air inflow hole 3 is connected to each station 2a of the storage path 2.
...In order to smoothly move the electronic components arranged every 2n, air inflow holes 3a including the air inflow holes 3a on the inner end side 2a of the circumference can be provided for each circumference, and each of the air inflow holes 3a...3n will be described later. It is preferable to arrange them in a straight line so that compressed air can be fed from the coupling connected to the in-case feeding mechanism, and to provide them on the plate side of the case body.These air inflow holes 3a...3n are shown in Fig. 5. Support plate 1 as shown in
It can be provided so as to communicate with each station 2a...2n of the storage path 2 from the back side of the storage path 2, and it is preferable to provide the holes diagonally in the forward direction with respect to the feeding direction of electronic components as shown in FIG.

The air inflow holes 3a...3n are located near the air inflow holes 3a...3n, and the inflow holes 4a...4n for pressurized air used when storing electronic components in the case are provided as storage channels on the plate side of the support plate 1a. It can be provided at 2a...2n for each round of 2. From the peripheral outer end side 2n of the storage path 2 in which the electronic components are moved by this compressed air, an electronic component outlet 5 that opens on the side of the case body 1 is provided continuously on a straight line.

This outlet 5 separates electronic components one by one and sends them out of the case, and the opening end of the outlet 5 has a second
．． As shown in Figures 3 and 7.8, a shutter mechanism 6 for separating electronic components one by one can be provided. The shutter mechanism 6 has a latch claw 6a protruding into the opening of the outlet 5 on one end side, and connects the rear end side to the support plate 1a via a support pin 6b whose midsection is pivotally connected to the support plate 1a. It can be supported so as to be freely deflectable by a spring 6C interposed therebetween. This shutter mechanism 6 can open the outlet 5 for the electronic components, which is closed by the latch claw 6a, by moving the rear end side against the spring 6C using a push-up pin as described later, using the support pin 6b as a fulcrum. , Also, the air inflow hole 3a...
- By operating in synchronization with the feeding of compressed air from 3n into the storage path 2, electronic components can be separated and sent out one by one.

In addition, as shown in FIG. 3, air discharge holes 7a...7n, 8a...8n can be provided on the upper surface side of the plate of the case body 1. These air discharge holes 7a...7n, 8
a...8n connects each station 2a...2n of the storage path 2 to the outside of the case and is arranged in a straight line to form the cover plate 1b.
Multiple columns can be provided. Moreover, if the support plate 1a and the lid plate 1b are fixed with the anchor clip 9, they can be combined so that they can be divided into two when packing or refilling electronic components. In this storage case 1, a plurality of electronic components E such as chip-type capacitors shown in FIG. 9 can be arranged and accommodated by stuffing them into the storage path 2 of the support plate 1a. To pack it, remove the cover plate 1b, place the electronic component E on the groove surface of the support plate 1a, and sieve it, so that it can be easily loaded into the groove, or it can be easily loaded into the groove after the manufacturing process of the electronic component E. This can be done continuously by feeding the electronic components E positioned in a predetermined direction into the case one by one from the outlet 5 of the storage case 1. The electronic component E
It is preferable that the terminal portions el+e2 be placed in the front and back, and the terminal portions el+e2 may be placed in the left and right positions.

This storage case 1 for electronic components includes a pumped air feeding mechanism 10 shown in FIG. , the operating mechanism 1 of the shutter mechanism 6
The electronic component E is assembled on a plywood base 13 having a base 13 by positioning and holding the electronic component E so as to be replaceable as appropriate each time the electronic component E is sent out. A feeding mechanism 10 for pressurized air installed on the base 13 includes a joint 10b of an air valve 10a that can be switched in two directions, and a joint 10 installed on the stand support frame, which will be described later.
c through a pipe 10d, and a coupling 11 having an open opening capable of enclosing the air inflow holes 3a...3n at the tip of a highly flexible pipe 10e protruding from the joint 10c. ing.

As shown in FIG. 1.10, the coupling 11 has an elliptical concave groove f corresponding to the pressurized air inflow holes 3a...3n formed in the cover plate 11a on the back side of the storage case 1.
lb is provided at an oblique angle.

A receiving groove t is provided around the entire circumference of the groove 11b.
O-ring 11 molded from soft resin etc. fitted inside the IC
d is attached and fixed. Further, an air joint lid is connected to the groove ttb by being screwed onto the cover plate 11a, and the distal end side of the vibrator 10e of the above-described pumped air feeding mechanism 10 is connected to this air joint lid. Furthermore, the lid plate 11a is supported by a bottle 13C which is pivotally supported by a U-shaped support plate 13b protruding from the base 13a as shown in FIG. 10.11.
By loosely fitting the protruding plate lie of the lid plate 11a into the
It is rotatably equipped so that it can approach and move away from the back side of the storage case 1.

This base 13a has a compression spring 13d that presses the lid plate 11a against the back side of the storage case 1 using the bottle 13c as a fulcrum.
is arranged so as to be hooked onto a pin 13e protruding from the base 13a, and the compression spring 13d is mounted so as to be freely deflectable by inserting one end side of the compression spring 13d into the receiving groove 11f of the cover plate 11a. An air cylinder 13f that moves the cover plate 11a away from the storage case 1 against the tension of a compression spring 13d is attached to the stand 13a, and a joint 13g connected to the air inlet and outlet hole of the air cylinder 13f.
A pipe 10g protruding from a joint 10f of the air pumping mechanism 10 is connected to the pipe 10g.

The operating mechanism 12 of the shutter mechanism 6 is constructed by attaching a push-up pin 12b to the tip of a rod such as a drive cylinder 12a and a solenoid, as shown in FIG. 1.12. In addition to the pumping air feeding mechanism 10, the coupling 11, and the shutter operating mechanism 12, there is also a stand on the plate surface of the base 13 that fits and supports the case body of the storage case 1 from the left and right sides, as shown in FIG. Support frames 14a and 14b,
Roller guides 15a and 15b are provided to position and support the case body of the storage case 1. In addition, the base 13 is equipped with a cradle 16 for electronic components in a position corresponding to the component delivery port 5 of the storage case 1''.This pedestal 16 can hold one electronic component as shown in FIG. It has a notched groove 16a that can be received, and a suction hole f6b that acts on suction air for electronic components diagonally downward from the inner surface of the notched groove 16a.
is provided. Further, this pedestal 16 is attached to the shaft end side of a sliding bar 17 which is slidably supported on the base 13 via a bracket piece 18, so that it can move forward or backward in the horizontal direction. . The driving mechanism is a protrusion 19 mounted on the axis of the sliding bar 17.
A drive cylinder 20 with which the tip of the rod comes into contact is installed in the horizontal direction of the base 13, and a stopper piece 21 is arranged to protrude from the base 13 so as to come into contact with the pedestal 16 at a predetermined position where the drive cylinder 2o moves forward. It is set up. At the upper position where the cradle 16 stops when it comes into contact with the stopper piece 21, the above-mentioned electronic component mounting head H is installed so as to be movable up and down. It receives components and carries them on an XY child table on which a printed circuit board is placed, and also operates to mount electronic components on the surface of the printed circuit board. Also, the cradle 16 is a base! The sliding bar 17 is pulled in the backward direction by a tension spring 22 stretched between the tension spring 22 and the sliding bar 17 as the drive cylinder 20 strokes backward.
The radial end of the shaft is mounted so as to move backward until the radial end side of the shaft contacts the stopper 23.

In the electronic component automatic supply device configured as described above, when the storage case 1 is inserted into the stand support frames 14a and 14b and placed on the base 13, the air valve 1 of the air feeding mechanism 10, which can be switched in two directions, is activated. The coupling 11 connected to the housing case 1 is positioned so as to cover the air inflow holes 3a . . . 3n of the storage case 1. Since this coupling 11 is pressed against the back side of the storage case 1 by the tension of the compression spring 13d, it is placed in an airtight manner to prevent air leakage from the plate surface of the storage case 1. Through the coupling 11, the inflow hole 3a of the storage case °1
... When pressurized air is sent from 3n to each station 2a...2n of the storage path 2, the electronic components are gradually rotated along the inner surface of the storage path 2 at each station 2a...2n, and each electronic component is The parts are gradually pushed toward the outlet 5 of the storage case 1. This rotational movement due to the pumped air extends beyond the vertical line from the top surface of the plate of the case body to the vicinity where the pumped air discharge holes a...7n, 8a...8n are provided, and from this position, each The electronic components descend along the storage path 2 by their own weight and gradually move while aligning inside the outlet 5 provided in a straight line. At the same time, when the shutter mechanism 6 is pressed by the push-up pin 12b that is driven in synchronization with the operation of the air valve 10a, the electronic component located at the top opens the outlet 5. Cutout groove 1 of pedestal 16 with compressed air
It is pushed out to 6a. Due to this extrusion, the electronic component is stably received and held in the notch groove 16a, and the suction hole 16
The pedestal 16 is sucked by the air pressure applied from b and moves forward until it comes into contact with the stopper 23, thereby being brought out to the elevating position of the mounting head H. After this electronic component is separated and sent out, the push-up pin 12b immediately moves downward to close the outlet 5 with the shutter mechanism 6, and then waits until pressurized air is sent into the case from the air valve 10a. do. Further, when the mounting head H picks up the electronic component at the nozzle tip, the cradle 16 is moved backward by the tension spring 22 as the stroke of the drive cylinder 20 is reduced.
By stopping at a position corresponding to the above-described operation, electronic components can be sent out one by one by repeating the above-described operation. The completion of delivery of the component can be detected by equipping the base side with a photo sensor or the like corresponding to the delivery port 5 of the storage case 1.

After sending out all the electronic parts from this storage case 1, if you want to replace it with another case, send compressed air to the air cylinder 13f installed in the base 13, and use the rod of the air cylinder 13f to attach the coupling 11 to the storage case. 1, the storage case 1 can be easily removed.

In addition, in the embodiment described above, the coupling 11 is connected to the base 13.
Although the coupling is rotatably mounted, it can also be mounted so as to move parallel to the base.

In addition, although the receiving table 16 that receives the electronic components discharged from the storage case 1 one by one and transports them to the position of the mounting head H is illustrated, the electronic components as shown in FIG. 15 are arranged in series and the mounting head A cradle 24 can be provided to send the robot to the vertical movement position of H. The holder 24 is fitted into the groove 2 of the base 25 in correspondence with the outlet 5 of the storage case 1.
5a, an outlet 24b slightly larger than 51 electronic components can be provided on the upper opening side of the delivery path 24a, and can be covered with a transparent plastic plate 24c. Further, a cover 24°d formed of a plate spring material can be attached to the outlet 24b of the electronic component E so as to be openable and closable. In this pedestal 24, the electronic components discharged from the outlet 5 of the storage case 1 are arranged in series in the outlet path 24a and pushed to the outlet 24b, and the electronic components are transferred from the outlet 24b by the mounting head H. You can take them out one by one.

Effects of the Invention As described above, according to the electronic component automatic supply device according to the present invention, when a storage case that accommodates a plurality of electronic components in an array is set on the base, the coupling will be able to release the air in the storage case. By aligning the electronic components with the inflow hole and gradually pushing and sucking the electronic components with the compressed air flowing in through the coupling, the electronic components can be positioned in the specified direction from the outlet of the storage case and sent out reliably. The peripheral mechanism for receiving electronic components and transferring them to the mounting head can also be configured simply.

[Brief explanation of drawings]

FIG. 1 is a side view showing an electronic component supply device according to the present invention, FIG. 2 is an exploded perspective view of an electronic component storage case installed in the device, FIG. 3 is a front view of the case, and FIG. A partial cross-sectional view showing the storage groove of the case, FIG. 5 is a rear view of the case, and FIG. 6 is a partial cross-sectional view showing the air inflow hole of the case.
Figure 7.8 is a partially enlarged front view and side view showing the shutter mechanism of the case, Figure 9 is a perspective view of electronic components that can be stored in the case, and Figure 10 is the inflow hole for pressurized air in the case. 11 is a top sectional view showing the mounting part of the coupling, FIG. 12 is a front view of the electronic component supply device shown in FIG. 1, and FIG. 13 is the same. FIG. 14 is a plan view of the device, FIG. 14 is a plan view showing a component holder of the device, and FIG. 15 is a side sectional view showing another embodiment of the component holder of the device. 1: storage case, 5: electronic component outlet, 3: pressurized air inflow hole, 10: pressurized air feeding mechanism into the case,
11: Coupling, 13: Base 16: Rest, E: Electronic component, H: Mounting head. fig. fig. fig. fig. fig. fig. fig. fig.

Claims (1)

[Claims] A storage case (1) in which a plurality of electronic components (E) are arranged in series and housed in the case;
) for positioning and holding the electronic components (E) in a replaceable manner, and a mechanism for feeding pressurized air into the case ( 10) and a mechanism for feeding this pressurized air into the case (1
0) and the pressurized air inlet (3) of the storage case (1), and the air pressure of the pressurized air is sequentially discharged from the outlet (5) of the storage case (1). The electronic component (E) is received and the mounting head (H
1. An automatic feeding device for electronic parts, characterized in that it is equipped with a cradle (16) for transporting electronic parts to a vertically moving position.