JPH06244588A - Electronic parts supplying equipment - Google Patents

Abstract

PURPOSE:To obtain a parts pushing-up mechanism wherein a suction nozzle is not damaged by a pushing-up pin, by installing a stopper part which regulates the limit of upward operation of the pushing-up pin for electronic parts. CONSTITUTION:The equipment consists of the following; a frame 17, a sprocket 13, a tape guide 14, a lever 15, a pushing-up pin 16 having a first collar 19 and a second collar 20, a pin pressing spring 17, a lever turn spring 18, and a stopper 21. The pushing-up pin 16 is regulated by the lever 15 only in the direction going away from a carrier tape, and energized by the pin pressing spring 17 in the direction approaching the carrier tape. When the second collar 20 abuts against the stopper 21, the pushing-up pin 16 does not more ascend. The collision between the nozzle and the pushing-up pin which is apt to be generated in the state that there are no parts in a cavity when the parts are out of stock can be prevented. Thereby the reliability of installation can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component supply device for a component mounting device for mounting electronic components on a printed circuit board.

[0002]

2. Description of the Related Art In recent years, with respect to an electronic component supply device, a device corresponding to taping (electronic component carrier tape) has become mainstream due to its high efficiency and high productivity. Most capacitors use this supply form.

Conventionally, an electronic component supply apparatus of this type has generally been constructed as shown in FIG. The configuration will be described below with reference to the drawings.

In FIG. 4, a frame 1 is provided with a spout rocket 2 for feeding an electronic component carrier tape (hereinafter referred to as tape) at a predetermined pitch and a tape guide 3 for guiding the tape in a predetermined direction so as not to come off. Generally, it is possible to intermittently feed at a constant pitch by the action of a component feed lever or the like of the component mounting apparatus body in which this is installed. On the other hand, reference numeral 5 denotes a component push-up pin, which has a structure in which the electronic component is pushed up from below by the action of the lever 4 which is driven by the mounting machine body in the same manner as the tape feeding. The push-up pin 5 receives a force directly from the lever 4 when it is used as a component, but returns to the original position by following the movement of the lever 4 by the pin return spring 6 when returning.

When the component mounting machine having the above structure is operated, the tape set in the component supply device is advanced by a certain pitch by the sprocket 2 which is acted by the mounting device main body, and the component mounting device is advanced. The component suction nozzle is set to a position where the components in the tape can be sucked. After that, the component suction nozzle moves onto the component in the tape and starts the suction operation. At this time, the lever 4 and the push-up pin 5 acted by the mounting apparatus main body push up the component from below, and the electronic component is picked up from the component suction nozzle. By pressing against, it contributes to the reliable adsorption of parts.

[0006]

In the above-mentioned configuration, the configuration shown in FIG.
There is no problem when the push-up pin 5 pushes up the component 9 enclosed in the component cavity 10 as shown in FIG. The component suction nozzle 11 sucks a component with a slight clearance from the upper surface of the component (Fig. (B)), and immediately after that, the push-up pin 5 makes a hole in the bottom tape 8 to move upward, and after reaching the rising limit (c ) Move down.

However, as shown in FIG. 6, the component tape 8 is set in a height relationship in which the component tape is broken, and the push-up pin position is displaced or the ascending end is in contact with the nozzle (due to variations in each component cassette). If
As shown in (c), the inside of the nozzle 11 and the push-up pin 5
It is expected that there is a possibility that the nozzles 11 may be damaged because of collision of the nozzles with each other, and this operation is performed at an extremely high speed as recently.

The present invention solves the above-mentioned conventional problems and has a component pushing-up mechanism which prevents the suction nozzle from being damaged by the pushing-up pin when there is no component in the cavity, such as when the component runs out. It is an object of the present invention to provide a component supply device having

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a component supply tape in which chip components and the like are enclosed in cavities arranged on the tape at equal pitch intervals, step by step. In a component supply device having a mechanism for advancing and delivering, at the component take-out position, a hole is formed in a bottom tape covering the bottom surface of the component supply tape, and an electronic component push-up pin that pushes up the electronic component, and the electronic component. It has a stopper portion that regulates the upward movement limit of the push-up pin.

[0010]

According to the present invention, due to the above-described structure, when there is no component in the cavity due to a component breakage when a component is picked up, and the push-up pin operating lever or nozzle height is not set correctly, the push-up pin collides with the suction nozzle. It is possible to prevent the nozzle from being damaged due to the above.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, the device comprises a frame 17, a sprocket 13, a tape guide 14, a lever 15, a push-up pin 16 having a first flange 19 and a second flange 20, a pin pushing spring 17, a lever return spring 18, Particularly, in the component pushing-up mechanism, the pushing-up pin 16 is restricted only by the lever 15 in the direction away from the electronic component carrier tape, and is attached by the pin pushing spring 17 in the direction approaching the electronic component carrier tape. The second collar 20 is urged and the stopper 21
The feature is that the push-up pin 16 does not rise any more when it abuts against.

The operation of the electronic component supply apparatus configured as described above will be described with reference to FIG. First, after the tape is sent to a predetermined position, the suction nozzle 22 moves to the component suction point, and the lever 15 is also acted by the mounting machine main body to start rotating counterclockwise. Push pin 16 at this time
Since the restraint of the lever 15 to the first collar 19 is released, the pin pushing spring 17 starts moving upward (a). When the suction nozzle has reached the suction position, the push-up pin 16 arrives at the electronic component 23 and exerts a push-up force. However, since the force at this time is due to the pin pushing spring 12, the rigidity of this spring is excessive for the electronic component. It is set to a very low value so as not to give a strong impact force (b). Next, the suction nozzle 22 finishes sucking the components and starts moving for mounting. At this time, the push-up pin 16 moves the suction nozzle 22 and the electronic component 23 until the second flange 20 contacts the stopper 21 on the frame 12. (C). After the parts are removed, the lever 15 is again operated by the action of the mounting machine body.
This time, since it rotates clockwise, the lever 15 and the first collar 1
The contact of 9 pushes the push-up pin 16 back to the initial position (d). That is, according to the above-mentioned component pushing-up mechanism, when the second flange 20 contacts the stopper 21, the pushing-up pin 16 cannot be lifted any more, and the pushing-up pin 16 comes out from the contacting portion of the second flange 20 and the stopper 21. By controlling the height dimension up to the tip of 16, it is possible to secure a stable push-up height.

FIG. 3 shows that the nozzle 22 and the push-up pin 15 collide with each other even when there is no part in the cavity and the push-up pin position is deviated due to the use of the component supply apparatus of this embodiment. Therefore, it is shown that the nozzle is not lost.

[0015]

As is apparent from the above embodiments, in the component supply device, at the component take-out position, a hole is formed in the bottom tape covering the bottom surface of the component supply tape,
Since the electronic component push-up pin that pushes upward and the stopper portion that restricts the upward movement limit of the electronic component push-up pin are provided, the relative distance between the operation levers on the equipment side and the component supply device side, and a plurality of component supply devices Since the rising height of the push-up pin is constant regardless of the number of nozzles, stable suction is performed, and the collision of the push-up pin with the nozzle, which is likely to occur when there are no parts in the cavity such as when the parts run out, is prevented and the equipment reliability is improved. Contribute to improvement.

[Brief description of drawings]

FIG. 1 is a perspective view of a component supply device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing the operation of the push-up pin and the suction nozzle when sucking a component in the embodiment of the present invention.

FIG. 3 is an explanatory diagram showing operations of a push-up pin and a suction nozzle when there is no component.

FIG. 4 is a perspective view of a conventional component supply device.

FIG. 5 is an explanatory diagram showing the operation of a push-up pin and a suction nozzle in the case of conventional component suction.

FIG. 6 is an explanatory view showing operations of a push-up pin and a suction nozzle when there is no conventional part.

[Explanation of symbols]

 12 frame 13 sprocket 14 tape guide 15 lever 16 push-up pin 17 pin push spring 18 lever return spring 19 first tsuba 20 second tsuba 21 stopper 22 suction nozzle 23 electronic parts

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hiroshi Furuya 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Makoto Sueki, 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. 72) Inventor Hideki Uchida 1006 Kadoma, Kadoma-shi, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (4)

[Claims] 1. A component supply device capable of intermittently supplying a component supply tape in which chip components and the like are enclosed in cavities formed on a tape arranged at equal pitch intervals, in the component extraction position, the component is provided. Is provided with an electronic component push-up pin that pushes upward from the bottom surface of the tape, and a stopper portion that restricts an upward movement limit of the electronic component push-up pin. 2. The component supply device according to claim 1, wherein the electronic component push-up pin has a stepped structure, and the stepped portion comes into contact with the stopper portion at an upward movement limit position. 3. An electronic component push-up pin has a tapered end portion, and a part of a sliding surface when performing an ascending / descending operation has a taper portion, and abuts on the taper portion of the push-up pin. The component supply device according to claim 1, wherein the upward movement distance is controlled thereby. 4. The component supply device according to claim 1, further comprising an electronic component push-up pin which is restricted by an operating lever only in a direction away from the component supply tape, and which is biased by a pin pushing spring in a direction toward the component supply tape. .