JPH054316Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to an electronic component feeding device for an automatic electronic component insertion machine, and particularly to an electronic component feeding device that facilitates changing and replacing electronic components. It is related to.

PRIOR ART

In automatic electronic component insertion machines, electronic components are
A large number of stakes stored in a row are placed vertically or tilted in parallel on a stake mounting table, and the electronic components that flow down by gravity within the stakes are selected by an escapement mechanism installed at the bottom end of the stakes. An electronic component supply device for an automatic electronic component insertion machine that takes out a predetermined electronic component one by one is known from Japanese Utility Model Application Publication No. 59-185899 and the like.

The electronic components taken out in this way are supplied to the mounting head of the automatic electronic component mounting machine by an arbitrary transfer means, and are inserted into the mounting holes of the printed circuit board by this insertion head.

[Problem that the invention attempts to solve]

The stakes, escapement mechanisms, and transfer means supported by such stake mounting bases, especially the gravity chute of the transfer means including the gravity chute, are each configured as a series in order to reliably transfer electronic components. is normal.

The electronic component supply device configured as a series in this way is effective in reliably supplying electronic components during normal electronic component insertion work, but it is difficult to change the electronic components to be inserted. Therefore, when replacing the stakes, it is very tedious work because they are constructed as a series.

That is, when replacing the stake to change the electronic components to be inserted, all the electronic components that have been used for insertion must be removed from the supply path of the electronic component supply device and stored in the new stake. In order to do this, the supply path has conventionally been configured as a series, so the electronic components in the middle of the supply path must be installed in the escapement mechanism. The supply path of the stay, escapement mechanism, etc. is removed by activating the electronic component, taking out one component, transporting it to the supply position to the insertion head by the transfer means, and collecting the electronic component here. I had to empty out the electronics inside.

Some automatic electronic component insertion devices allow electronic components stored in the stake to be taken out together with the stake, but even in this case, the electronic components inside the escapement mechanism are It was necessary to take it out in the same way.

The purpose of the present invention is to solve these problems and provide an electronic component supply device that makes it possible to easily take out electronic components in the supply path such as the stay and escapement mechanism. be.

[Means for solving problems]

That is, in order to eliminate the drawbacks of the conventional technology, the present invention includes a stand mounting base that supports a plurality of stands storing electronic components in parallel, and a stand that is provided at the lower end of each stay and that allows for the flow of electricity to flow down from inside the stand. an escapement mechanism that separates and takes out electronic components one by one; and a transfer means that is continuous with the lower end of the escapement mechanism and transports the electronic components separated and taken out one by one to a supply position to an insertion head. , by moving either the escapement mechanism or the transfer means from a first position where the escapement mechanism and the transfer means are continuous with each other, so that the escapement mechanism and the transfer means are relatively separated, An offset means for moving the electronic component to a second position from which it can be taken out directly is provided.

〔Example〕

Hereinafter, the present invention will be explained based on the drawings.

FIG. 2 is a schematic front view showing one embodiment of the automatic electronic component insertion machine according to the present invention, and FIG. 1 is a right side view showing the main parts thereof.

As shown in the figure, stakes 2 each containing electronic components arranged in a row are supported on a stake mounting base 1 in parallel. In this embodiment, the stakes 2 have a large number of stakes housing different types of electronic components arranged in parallel on a plane, and as shown in FIG. The electronic components are supported in multiple stacked stacks, the electronic components are taken out from the lowest stake, and when all the electronic components in the lowest stake have been fed, the empty stake is automatically ejected. Configured to supply electronic components in the following stakes:

As shown in FIG. 1, the stake mounting base 1 is
The electronic component is mounted on the upper surface of the main body frame 3 of the automatic electronic component insertion device by means of the mounting shaft 4 and the stay 7 supported by the mounting plates 5 and 6, so that the electronic component flows down by gravity. An escapement mechanism corresponding to each row of stakes 2 is fixed to the stake mounting base 1 and is connected to the lower end of the lowest stake of the stakes 2 supported in parallel. The escapement mechanism 8 is configured to selectively operate to take out one selected electronic component from the bottom end of the stacks stacked in each row.

FIG. 3 shows one embodiment of the escapement mechanism 8, in which a guide path 31 for electronic components is formed continuously at the lower end of the stake 2 supported by the stake mounting base 1 provided at an angle. There is.

A pair of L-shaped stopper levers 3 operated by a solenoid 32 are provided at the lower end of the guide path 31.
3 and 34 are depending, and both are pivotally supported by a pivot 35. Long stop lever 3
3 locks the electronic component W1 at the lower end of the guide path 31 and is connected to the plunger 36 of the solenoid 32, so that it is pulled up by the suction of the solenoid 32 and the electronic component W1 at the lower end of the guide path 31 is pulled up by the suction of the solenoid 32.
1 can pass through, causing the electronic component W1 to flow out.

At the same time, the rise of the plunger 36 is caused by the pivot 37.
The stopper lever 34 is released so that it can be lowered through the swinging of the intermediate lever 38 which is pivotally supported by the
The stopper lever 34 is rotated counterclockwise by the biasing force of the spring 39, and the next electronic component W2 is moved.
Press to stop. On the other hand, when the solenoid 32 is demagnetized, the stopper lever 33 operates in the opposite direction to the above explanation and descends to the position where it prevents the electronic component from flowing out, and the stopper lever 34 rises to release the electronic component W2. Parts W2
flows down along the guide path 31, and the stopper lever 3
3 and stops.

Numerals 40 and 41 are phototube-based detection mechanisms that detect the presence or absence of electronic components, and when the presence or absence of electronic components is detected, it is determined that the lowest stake is empty and the lowest stake is ejected. .

At the upper right side of the escapement mechanism 8, there is shown a mechanism for taking out the parts inside the stake when the stake 2 is taken out, but its explanation will be omitted since it has no direct relation to the present invention.

A spiral chute 9 is provided continuously at the lower end of the guide path 31. The spiral chute 9 is a gravity chute formed in a spiral shape, and guides electronic components taken out one by one from the stake 2 by the escapement mechanism 8 onto a conveyor 10 as shown in FIG. The electronic components transferred in the directions of the arrows by the conveyor 10 are supplied to the chuck 14 of the insertion head 13 via the transfer chute 12 having a check mechanism 11 and the like, and are brought to the supply position from the spiral chute 9 to the insertion head 13. It constitutes a means of transportation to reach the destination.

The electronic component supplied to the chuck 14 of the insertion head 13 is inserted into a predetermined insertion hole of a printed circuit board 16 placed on an XY table 15.

As described above, the stay mounting base 1 is pivoted by the mounting shaft 4 and is placed in a predetermined position by the stay 7 supported by the mounting plates 5 and 6 so that the electronic components flow down by gravity. It is installed at an angle of .

FIGS. 4 and 5 are a side view and a cross-sectional view taken along line AA, showing details of this stay 7.

The stay 7 is also a component of the offset means, and is divided into upper and lower stays, an upper stay 17 and a lower stay 18.
0, and the center is connected by a support shaft 21 to form a torque shape. The thumbscrew 22 at the top of the central support shaft 21 is a stopper that holds the stay 7 in an extended state, and the stoppers 23 and 24 fixed to the lower stay 18 each serve as a stopper for holding the stay 7 in an extended state.
This is to regulate the position of the extended state and the bent state.

During normal insertion work, the stay 7 is used in an extended state, that is, the upper stay 17 and the lower stay 18 are in a straight line, as shown in FIGS. 4 and 1. At this time, the stay 2 has a predetermined inclination angle, and the guide path 31 of the escapement mechanism 8
The lower end of the spiral chute 9 and the spiral chute 9 are constructed as a series, so that electronic components can be reliably supplied.

When replacing the stake to change electronic components, first remove the stake 2 from the mounting base 1 if the electronic components inside the stake are to be taken out together with the stake 2. As a result, the only electronic components remaining in the supply path are those in the escapement mechanism 8, and the number of components that need to be removed is greatly reduced.

Next, the thumbscrew 22 is loosened and moved upward to remove the pin portion 22a of the thumbscrew 22 from the U-shaped groove 18a provided in the lower stay 18. As a result, the upper stay 17 and the lower stay 18 can be bent to the positions shown by imaginary lines in FIGS. 4 and 1. When the stay 7 is bent to the position shown by the imaginary line, the upper stay 18 is attached to the stopper 24 fixed to the lower stay 18.
The tip of the handle touches and stops at the position shown by the imaginary line.

At this time, the stake mounting base 1 rotates around the mounting shaft 4, and the tip 31a of the guide path 31 of the escapement mechanism 8 is directed in a direction perpendicular to the supply path of the electronic components, as shown by the imaginary line in FIG. The user then moves to a space away from the entrance of the spiral chute 9 and is located in a space with nothing around it. When the escapement mechanism 8 is operated manually in this state, the electronic component to be taken out for component change is placed in the guide path because the lower end of the escapement mechanism 8 is located in a space with nothing around it. 31
It can be taken out directly from the tip 31a. This is exactly the same even if the upper end of the transfer means, ie, the entrance of the spiral chute, is moved in a direction perpendicular to the supply path of the electronic components.

[Effect of idea]

Since the present invention is configured as described above,
When replacing electronic components stored in the stake in the component supply device of an automatic electronic component insertion machine,
By moving either the lower end of the escapement mechanism or the upper end of the transfer means so that the escapement mechanism and the transfer means are relatively separated and offset from the electronic component supply path, the escapement mechanism, etc. This is especially useful when the operating position of the escapement mechanism and the supply position to the insertion head are far apart, or when the electronic components remaining in the transport path of the stand are mounted on the stand. This has a great effect on an electronic component supply device that cannot be removed until the stored components are exhausted.

[Brief explanation of drawings]

Fig. 1 is a right side view showing the main parts of Fig. 2, Fig. 2 is a schematic front view showing an example of an automatic electronic component insertion machine according to the present invention, and Fig. 3 is an example of an escapement mechanism. The right side view, FIGS. 4 and 5 are a side view and a sectional view taken along line A-A, showing details of the stay, which is also an offset means. 1... Stakes mounting base, 2... Stakes,
3...Body frame, 7...Stay, 9...Spiral chute, 17...Upper stay, 18...Lower stay, 21...Spindle, 22...Thumb screw.

Claims (1)

[Scope of utility model registration request] A stake mounting base that supports a plurality of stakes storing electronic components in parallel, an escapement mechanism provided at the lower end of each stake to separate and take out electronic components that have flown down from inside the stakes, and the escapement a transfer means that is continuous with the lower end of the escapement mechanism and that transfers the separated and taken out electronic components to a supply position to the insertion head; and a first position that connects the escapement mechanism and the transfer means to each other. offset means for moving either the escapement mechanism or the transfer means from the escapement mechanism to a second position where the escapement mechanism and the transfer means are relatively separated and the electronic component within the escapement mechanism can be directly taken out; An electronic component feeding device for an automatic electronic component insertion machine, characterized in that it has the following.