JPH02222600A - Automatic feeder of electronic component - Google Patents

Abstract

PURPOSE:To surely transfer an electronic component one by one to a mounting head by a method wherein a housing case in which two or more electronic components are aligned in series a drive mechanism which advances or recedes from the delivery opening of the case to the up-down position of the mounting head are provided. CONSTITUTION:When force feed air is sent into circles 2a-2n of a housing path 2 through inlet holes 3a-3n through the intermediary of a coupling 10e connected to an air valve 10a of an air feed mechanism 10, electronic components can be gradually sent being pushed to a delivery opening 5 of a housing case 1 by gradually moving the electronic components as revolving. An electronic component positioned at a head is pushed out onto a cutout grove 15a of a receiving table 15 through force feed air when a shutter mechanism 6 is pushed by a push pin 11 synchronously driven with the actuation of the air valve 10a. The electronic component pushed out is caught and stably held in the cutout groove 15a, advances till it bears on a stopper, and is transferred to the ascending-descending position of a mounting head H.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electronic component supply device that individually feeds electronic components to be mounted on the surface of a printed circuit board 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 the electronic components overlap and get caught in the opening on the space side of the insertion path, it is easy to cause a situation in which the smooth delivery of the electronic components is hindered. For this reason, it is necessary to provide ancillary equipment that blows out air at predetermined intervals near the opening of the insertion passage to scatter the electronic components. In addition, in the electronic component supply device, the electronic components fall into the insertion path under their own weight and are aligned.
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 that are 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.

An object of the present invention is to provide an electronic component feeding device that can reliably feed electronic components one by one to a mounting head using an extremely simple mechanism.

Means for Solving the Problems An 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 the storage case is positioned and held in a replaceable manner. a base, a mechanism for feeding pressurized air into the case that gradually pushes each electronic component toward the outlet of the storage case;
A cradle that receives individual electronic components discharged from the outlet of the storage case using the air pressure of this pumped air, and a drive that moves the cradle forward or backward from the vicinity of the outlet of the storage case to the vertical movement position of the mounting head. It is configured by having a mechanism. In this automatic electronic component supply device, a shutter mechanism can be provided near the outlet of the storage case to open and close the outlet of the storage case in synchronization with the feeding of pressurized air. In addition, the cradle can be provided with a notched groove that is positioned corresponding to the outlet of the storage case to receive and lock the electronic components, and an air suction hole that communicates with the inner surface of the notched groove to attract the electronic components. It can also be provided on the pedestal.

Function: In this electronic component supply device, a plurality of electronic components are arranged in a row and housed in a case, and the electronic components are gradually pushed toward the outlet of the storage case using pressurized air, and the electronic components are removed from the outlet of the storage case. Since the air is discharged onto the cradle, it is possible to reliably take out the electronic components one by one from the outlet out of the case as the compressed air is sent in. Moreover, the electronic components can be taken out from the outlet in a predetermined direction. The electronic component can be received and locked on the receiving table and transported stably to the vertical movement position of the mounting head.

If a shutter mechanism that opens and closes in synchronization with the feeding of pressurized air is provided at the outlet for the electronic components, the electronic components can be separated and sent out one by one more reliably. In addition, if the cradle is provided with a notched groove that receives and locks the electronic components in a position corresponding to the outlet of the storage case, the electronic components can be accurately separated and received, and the air that acts from the suction hole on the inner surface By suctioning the electronic component with pressure, it is possible to transport the electronic component extremely stably to the lifting position of the mounting head.

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

This electronic component supply device is installed in an automatic electronic component mounting device that automatically mounts capacitors, resistors, etc. (D-chip type electronic components) onto printed circuit boards, and is stored as shown in Figure 1. It is assembled as a mechanism for carrying electronic components sent out from the case 1 to a mounting head H that moves up and down at a predetermined position in front.

As shown in Fig. 2.3, 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 swivel-shaped 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 can be formed by a concave groove having a depth relatively larger than the thickness of the electronic component E, and each station 2a...-2n is connected to the adjacent position from the center of the board. 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 Jacon, and the inner surface of the storage path 2 is coated with fluorine to prevent static electricity. It is advisable 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 the inner peripheral end side 2a of the storage path 2 hidden by the cover plate t'b is communicated from outside the case,
An air inflow hole 3 is provided for feeding air under pressure for electronic components. This air inflow hole 3 is located at 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 the air inflow holes 3a...3n will be described later. It is preferable to arrange them in a straight line so that the pumped air can be sent from the coupling of the in-case feeding mechanism, and to provide them on the lower surface side of the plate of the case body. Each of these air inflow holes 3
a...3n can be provided in communication with each station 2a...2n of the storage path 2 from the back side of the support plate 1a as shown in FIG. It is preferable to drill the holes diagonally in the forward direction with respect to the feeding direction. Air outlet holes 4a...4n are located near the air inflow holes 3a...3n, and air outlet holes 4a...4n are provided on the lower surface side of the support plate 1a for each circumference of the storage path 2. ...2
n. These air outflow holes 4a...
- If 4n is formed obliquely in the opposite direction to the feeding direction of the electronic component, the discharge amount of the pressurized air can be set appropriately. Storage path 2 where electronic components are moved using the compressed air
From the outer circumferential end side 2n of the case body 1, an electronic component outlet 5 that opens on the side of the case body 1 is continuously provided on a straight line. This outlet 5 separates electronic components one by one and sends them out of the case, and the open end of the outlet 5 separates electronic components one by one as shown in Figures 2.3 and 7.8. A shutter mechanism 6 can be provided.

This shutter mechanism 6 has a latch claw 6a protruding into the opening of the outlet 5 on one end side, and its midsection is attached to a support plate 1a.
The rear end side is attached to the support plate 1a via a support pin 6b which is pivotally attached to the support plate 1a.
It can be supported so as to be freely deflectable by a spring 6C interposed between the two. As will be described later, this shutter mechanism 6 opens the outlet 5 for the electronic components, which is closed by the latch claw 6a, by deflecting the rear end side using the support pin 6b as a fulcrum against the spring 6C with a push-up pin as will be described later. Moreover, if the electronic components are operated in synchronization with the feeding of pressurized air into the storage path 2 from the air inflow holes 3a...3n, the electronic components can be separated and sent out one by one.

In addition to the air outflow holes 4a...4n mentioned above,
As shown in FIG. 3, air exhaust 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, 8a...
- A plurality of rows of 8n can be provided on the cover plate 1b by communicating with the outside of the case from each station 2a...2n of the storage path 2 and arranging them in a straight line. Further, if the support plate 1a and the cover plate 1b are fixed with an anchor clip 9 as shown in FIGS. 9a and 9b, they can be combined so that they can be divided into two parts when packing or refilling electronic components. The clip 9 includes left and right retaining edges 9a and 9b that are approximately doglegged.
It is possible to use a structure in which the and thin-walled tension portions 9c are integrally molded. As this clip 9 is fitted into the stopper hole 1c of the cover plate 1b as shown in FIG. 9C, the tension part 9c is bent and deformed.
It can be easily inserted and removed from the hole 1d. In this storage case 1, a plurality of electronic components E such as chip-type capacitors shown in FIG. 10 can be arranged and accommodated by stuffing them into the storage path 2 of the support plate 1a. When packing, remove the cover plate 1b and place the electronic components on the support plate 1.
It can be easily loaded into the groove by placing it on the groove surface of a and passing it through a sieve, and this packing can be carried out continuously from the manufacturing process of electronic parts. Regarding the loading direction of the electronic component E, it is preferable to position the terminal portion e l + 62 in the front and rear, and it is also possible to accommodate the terminal portion e l + 62 in a position in the left and right positions.

This storage case 1 for electronic components is placed on a plywood base 12 equipped with a mechanism 10 for feeding compressed air into the case and an actuation mechanism 11 for the shutter mechanism 6, as shown in FIG. It is assembled by positioning and holding in a replaceable manner.

A feeding mechanism 10 for compressed air installed on the base connects a joint 10b of an air valve 10a and a joint 10c installed on a stand support frame (described later) with a pipe 10d, and connects the tip of a vibrator 10d protruding from the joint 10c. It is configured to include a coupling 10e having an open opening capable of enclosing the air inflow holes 3a...3n. Further, as shown in FIG. 11, the operating mechanism 11 of the shutter mechanism 6 is constructed by attaching a push-up pin llb to the tip of a rod such as a drive cylinder 11a and a solenoid. In addition to the pumped air feeding mechanism 10 and the shutter operating mechanism 11, the plate surface of the base 12 includes a stand supporting frame 13a that fits and supports the case body of the storage case 1 from the left and right sides, as shown in FIG. 13b, and roller guides 14a and 14b for positioning and supporting the case body of the storage case 1. Further, the base 12 is equipped with a holder 15 for electronic components at a position corresponding to the component outlet 5 of the storage case 1. As shown in FIG. 13, this holder 15 has a notched groove 15a that can receive one electronic component.
A suction hole 15b is provided diagonally downward from the inner surface of 5a to apply suction air to the electronic components. Further, this pedestal 15 is attached to the shaft end side of a sliding bar 16 which is slidably supported by a shaft on the base 12 via a bracket piece 17, so that it can move forward or backward in the horizontal direction. . The drive mechanism includes a drive cylinder 19 in which the tip of the rod comes into contact with a protrusion 18 mounted on the axis of the sliding bar 16.A drive cylinder 19 is installed in the horizontal direction of the base 12, and the drive cylinder 19 moves forward at a predetermined position. A stopper piece 20 is arranged to protrude from the base 12 so as to come into contact with the pedestal 15. At the upper position where the cradle 15 stops when it comes into contact with the stopper piece 20, the mounting head H for the above-mentioned electronic components is installed so as to be movable up and down. It receives the components and carries them to the XY table on which the printed circuit board is placed, and also operates to mount the electronic components on the surface of the printed circuit board. Further, the pedestal 15 is pulled in the backward direction by a tension spring 21 stretched between it and an appropriate part of the base 12, and as the drive cylinder 19 strokes backward, the shaft radial end side of the sliding bar 16 is pulled back. It is attached so that it can move backward until it abuts against the stopper 22.

In the electronic component supply device configured in this way, the inflow holes 3a...3 of the storage case 1 are connected to the air valve 10a of the air feeding mechanism 10 via the coupling 10e
When pressurized air is sent from n to each station 2a...2n of the storage path 2, electronic components are sent to each station 2a...2n of the storage path 2.
By gradually rotating the electronic components along the inner surface of the storage case 1, each electronic component can be gradually pushed toward the outlet 5 of the storage case 1. The rotation movement caused by 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 7a...7n, 8a...8n are provided, and from this position, each electronic Parts are stored under their own weight in path 2
, and is gradually driven while aligning inside the outlet port 5 provided in a straight line.

At the same time, when the shutter mechanism 6 is pressed by the push-up pin Ilb that is driven in synchronization with the operation of the air valve 10a, the electronic component located at the top of the shutter mechanism 6 is pressed.
opens the outlet 5, and the pedestal 1 is pumped with compressed air.
It is pushed out into the notch groove 15a of No.5. By this extrusion, the electronic component is stably received and held in the notch groove 15a, and is sucked by the air pressure acting from the suction hole 15b, and the mounting head H is moved forward until the pedestal 15 comes into contact with the stopper 22. Bring it up to the elevating position. After separating this electronic component and sending it out, the push-up bin 1
1b immediately moves downward, the outlet 5 is closed by the shutter mechanism 6, and the system waits until the next time compressed air is sent into the case from the air valve 10a. Also,
When the mounting head H picks up the electronic component at the nozzle tip, the cradle 15 moves backward by the tension spring 21 as the drive cylinder 19 reduces its stroke, and stops at a position corresponding to the outlet 5 of the storage case 1. By repeating the above-described operation, electronic components can be sent out one after another.

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.

In addition, in the above-mentioned embodiment, a storage case in which storage grooves for electronic components were provided in a spiral shape was illustrated, but instead of this, a storage case may be equipped with a plurality of linear storage grooves in parallel. can. The storage case is assembled on the plate surface of the base so that it can be moved horizontally or vertically so that it is located in a position corresponding to each storage groove, and it is also press-fed from one end side of the storage groove located corresponding to this holder. It may be configured to feed air.

Effects of the Invention As described above, according to the electronic component supply device according to the present invention, a plurality of electronic components can be arranged and housed in a storage case, and the electronic components can be gradually pushed out with compressed air. Since electronic components can be positioned one by one in a predetermined direction and reliably delivered from the delivery port of the storage case, the peripheral mechanism for receiving the electronic components and transferring them to the mounting head can also be configured simply.

[Brief explanation of the drawing]

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 same case, Figure 9aNc is an explanatory view showing the clip of the case, and Figure 10 shows the electronic components that can be stored in the case. 11 is a front view of the electronic component supply device shown in FIG. 1, FIG. 12 is a plan view of the same device, and FIG. 13 is a perspective view.
The figure is a plan view showing a component holder of the same device. 1: Storage case, 5: Electronic parts outlet, 6: Shutter mechanism, 10: Pressure air feeding mechanism into the case, 15:
Receiver, 15a: Notch groove, 15b: Suction hole, 16, 19
, 21: cradle drive mechanism, H: mounting head, E: electronic component. Fig. 3 Fig. 4 Fig. Fig. Fig. Fig. Fig.

Claims (4)

[Claims] (1) A storage case (1) in which a plurality of electronic components (E) are arranged in series and housed in the case, and a base (12) for positioning and holding the storage case (1) in a replaceable manner;
A mechanism (10) for pumping air into the case that gradually pushes each electronic component (E) toward the outlet (5) of the storage case (1), and ), and the mounting head (H
) The drive mechanism (16) moves forward or backward to the vertical position of
, 19, 21). (2) In synchronization with the supply of pressurized air to the vicinity of the outlet (5) of the storage case (1), the outlet (5) of the storage case (1) is
5) The automatic electronic component supply device according to claim 1, further comprising a shutter mechanism (6) that opens and closes. (3) Notch groove (15a) located corresponding to the outlet (5) of the storage case (1) to receive and lock the electronic component (E).
) is provided on the pedestal (15).
Automatic feeding device for the electronic components described. (4) The air suction hole (15b) that communicates with the inner surface of the notch groove (15a) to adsorb the electronic component (E) is a cradle (
15) The automatic electronic component feeding device according to claim 3, wherein the electronic component automatic feeding device is provided in 15).