JPH0772563B2 - Parts feeder - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component supply device, and more particularly to a component extraction device for supplying a component in a component supply magazine to a component extraction position of a chute.

[Outline of Invention]

According to the present invention, a forward movement cylinder and a backward movement cylinder are arranged in parallel with each other, and those pistons are connected by a flexible wire that is bent, and a pusher is attached to the tip end side of the forward movement cylinder through a flexible rod. The pusher pushes out the parts in the stick-shaped magazine and supplies the parts to the parts pick-up position of the chute, and reduces the dimension in the stroke direction of the actuator composed of a pair of cylinders. It is designed to be downsized.

[Conventional technology]

Deformed ICs, keyboard switches, and other odd-shaped components are supplied in a stick-shaped magazine, and each electronic component in such a magazine must be taken out and mounted on a circuit board. By this, a predetermined circuit is formed. An insertion machine has been used to automatically mount such electronic components. When supplying electronic components with such a machine, an inclined chute is used so that the electronic component can slide by its own weight. Then, in order to ensure the supply of the parts at this time and increase the reliability thereof, measures such as applying vibration are taken.

[Problems to be solved by the invention]

According to such a conventional electronic component supply device, there is a drawback in that it is not only difficult to be reliable but also it is not possible to arbitrarily correspond to the shape and size of the electronic component. Therefore, there has been proposed a component supply device that uses an actuator driven by compressed air. However, when a normal air cylinder is used, the dimension in the stroke direction becomes large, which hinders downsizing of the machine or causes the air cylinder to project rearward.

The present invention has been made in view of such problems, and when used in an automatic mounting device for components such as an insertion machine, it uses an actuator whose dimension in the stroke direction is shortened. It is an object to provide a component supply device.

[Means for solving problems]

The present invention provides a forward cylinder having a slidable piston, a return cylinder having a slidable piston, and a flexible first connecting a piston of the forward cylinder and a piston of the return cylinder to each other. Connecting means, a flexible second connecting means connected to the other end of the piston of the forward moving cylinder or the piston of the returning moving cylinder, a pusher connected to the second connecting means, and a row of parts. A chute provided with a component supply magazine that is housed in a circular shape, and a pusher from the end of the component supply magazine disposed on the chute by the action of one of the forward movement cylinder and the backward movement cylinder. Insert the inside of the parts supply magazine, push the parts in the parts supply magazine to the parts extraction position side of the chute, The present invention relates to a component supply device, wherein the pusher is pulled out from the component supply magazine after the component extrusion is completed by the action of the other of the forward movement cylinder and the backward movement cylinder.

[Action]

Operate the forward movement cylinder or the backward movement cylinder to
Insert the pusher into the inside of this magazine from the end of the supply magazine via the connecting means of, and push the parts in the parts supply magazine to the parts pick-up position of the chute, and after finishing the parts extrusion, return cylinder or By pulling out the pusher from the component supply magazine by the forward movement cylinder, the component is supplied to the component extraction position of the chute.

〔Example〕

The present invention will be described below with reference to an embodiment shown in the drawings. FIG. 3 and FIG. 4 show an insertion machine in which the component supply device according to one embodiment of the present invention is used. The insertion machine has a main body portion 10 and an insertion head 11. There is. A chuck 12 is provided behind the insertion head 11, and a magazine 13 is arranged behind the chuck 12. magazine
13 is mounted on the chute 14. Further, a supply device 15 is arranged below the chute 14, and the parts are supplied by the supply device 15. An XY table 16 is arranged below the insertion head 11. The circuit board placed on the table 16 is positioned and electronic components are mounted thereon. ing.

Next, the structure of the supply device 15 will be described.
As shown in the figure, the supply device 15 is provided with a base 17, and a pair of support bodies 18 are arranged on the base 17, and a forward cylinder having both ends supported by these support bodies 18.
19 and the return cylinder 20 are arranged parallel to each other.
These cylinders 19 and 20 are provided with pistons 21 and 22, respectively, and the pistons 21 and 22 are connected to each other by a flexible wire 23.

The flexible wire 23 is provided on the upper and lower air cylinders 19, 20.
It is drawn out to the right end side of and is guided by the arc-shaped guide 24. In addition, the air cylinder 19,
The right end of 20 is a closing plate having a small hole through which the wire 23 is inserted.
It is closed by 25, and air supply holes 26, 27 are provided near the closing plate 25.

A flexible rod 28 is connected to the piston 21 of the forward air cylinder 19. The rod 28 is composed of a close contact spring, is guided by an arc-shaped guide 29, and has a pusher 30 connected to its tip. Pusher 30
The electronic component 32 in the stick-shaped magazine 31 is pushed out. A sensor 33 is provided in the supply guide 34 from which the electronic component 32 is pushed out, and the presence or absence of the component 32 is detected by this sensor 34.

In the above structure, the parts 32 on the supply guide 34 forming the tip of the chute 14 are taken out one by one from the tip side by the chuck 12, and the parts 32 are inserted into the insertion head. 11 is mounted on a circuit board on the XY table 16. At this time, since the circuit board is positioned in the X direction and the Y direction, the electronic component 32 is correctly mounted at the predetermined position on the circuit board.

When the component 32 is taken out from the guide 34 in this way, the sensor 33 detects that the component 32 is gone.
Then, compressed air is supplied into the forward air cylinder 19 through the air supply hole 26, and the piston 21 is pushed to the left and moves as shown in FIG. Then, the pusher 30 connected to the piston 21 via the flexible rod 28 moves to the right from the original position shown in FIG. 1, and pushes out the electronic component 32 in the lowermost stick-shaped magazine 31. As a result, the component 32 is delivered to the supply guide 34. Then, this is detected by the sensor 33, the electromagnetic valve is closed, and the supply of compressed air to the supply hole 26 is stopped.

By repeating the above operation, the bottom magazine 31
When all the electronic components 32 inside are supplied and become empty, air is supplied to the air supply hole 27 of the returning air cylinder 20 and the piston 22 is moved to the left. As a result, the piston 21 is moved to the right as shown in FIG. Therefore, the pusher 30 connected to the piston 21 via the rod 28 returns to the original position shown in FIG. 1, and the empty bottom magazine 31 is ejected by the ejecting means and stacked on it. The new stick 31 that has been dropped falls and is ready for the next supply.

Conventionally, electronic components consisting of odd-shaped components such as dip ICs and keyboard switches, which are stored in stick-shaped magazines, are stored on the inclined surface of the magazine and are supplied using their own weight. The reliability of the supply was increased by adding vibration. In this case, the odd-shaped parts are greatly diversified in shape and size as compared with other electronic parts, and there is a limit to the reliability when they are supplied using the inclined surface. However, according to the method of this embodiment, since the components are forcibly supplied by using the air actuator, the electronic component 32 in the stick-shaped magazine 31 can be supplied in the smallest guide area while the mechanism is simple. It becomes possible to supply to the above, and the reliability of the supply will be improved. Also, regardless of the size and shape of the parts 32, the magazine 31
The electronic component 32 therein can be reliably supplied, and a vibration source or the like for performing an auxiliary operation therefor is not required.

Furthermore, according to the supply device of the component 32 according to the present embodiment, the actuator is mechanically supplied using the
Therefore, it is not necessary to use the inclined surface. Therefore, it becomes possible to supply the parts on a flat surface, and the reliability of the parts can be increased. The actuator is composed of a pair of air cylinders 19 and 20, and the pistons 21 and 22 are connected by a flexible wire 23, and the pusher 30 is pushed by a flexible rod 28. There is.
Therefore, the actuator can be made extremely compact, and in particular, the dimension in the stroke direction can be reduced. That is, the length of the actuator can be made substantially equal to the length of the magazine 31, and the actuator can be prevented from projecting to the rear of the machine, whereby the space factor of the insertion machine can be increased.

〔The invention's effect〕

As described above, the present invention includes the forward movement cylinder and the backward movement cylinder in which the pistons are connected to each other through the flexible first connecting means, and the other end of the forward movement cylinder or the backward movement cylinder piston is provided. The pusher is connected to the pusher via the second connecting means, and one of the forward movement cylinder and the backward movement cylinder is operated to insert the pusher into the component supply magazine from the end of the component supply magazine arranged on the chute. The parts in the parts supply magazine are pushed out to the parts pick-up position of the chute, and the pusher is pulled out from the parts supply magazine by the operation of the backward movement cylinder or the forward movement cylinder after the parts are pushed out.

Thus both flexible first connecting means and second
By means of the connecting means, it is possible to make free the positional relationship between the two cylinders and this chute and the chute provided with the component supply magazine, in particular to reduce the dimension of the component supply device in the direction of pushing out the components. It becomes possible to provide a compact component supply device.

[Brief description of drawings]

FIG. 1 is a sectional view of a main part of a component supply device according to an embodiment of the present invention, FIG. 2 is a sectional view of the component supply device during forward movement, and FIG. 3 is an appearance of an insertion machine equipped with this device. A perspective view and FIG. 4 are side views of the same. In the reference numerals used in the drawings, 13 ... Magazine 14 ... Chute 19 ... Forward air cylinder 20 ... Return air cylinder 21, 22 ... Piston 23 ... Flexible wire 28 ... Flexible rod 30 ... Pusher 31 …… Stick magazine.

Claims (1)

[Claims] 1. A forward moving cylinder having a slidable piston, a backward moving cylinder having a slidable piston, and a flexible first connecting piston for the forward moving cylinder and the backward moving cylinder. 1 connecting means, a flexible second connecting means connected to the other end of the piston of the forward moving cylinder or the piston of the backward moving cylinder, a pusher connected to the second connecting means, and And a chute having component supply magazines that are housed in a row, and a pusher is provided from an end of the component supply magazine disposed on the chute by the action of one of the forward movement cylinder and the backward movement cylinder. Insert the parts in the parts supply magazine, and push the parts in the parts supply magazine to the parts extraction position side of the chute. The component supply device, wherein the pusher is pulled out from the component supply magazine after the component extrusion is completed by the action of the other of the forward movement cylinder and the backward movement cylinder.