JPH0213517A - Electronic parts separating method and device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for separating electronic components one by one from the previous one, which are continuously conveyed by a conveyor belt, and a method for separating electronic components one by one from the preceding one. It is related to the device.

[Conventional technology]

Regarding this type of separation technology, Japanese Patent Application Laid-Open No. 59-22559
No. 9 is publicly known.

FIG. 8 to FIG. 10 are explanatory diagrams of known examples. FIG. 8 shows an overall perspective view of this known example.

The electronic component 8, which is an object to be conveyed, slides down from the horizontal stick 1 under its own weight, passes through the chute section 6, slides into the horizontal guide section 4, and rides on the conveyor bells 1 to 5.

The above-mentioned horizontal stick 1 is a tubular member as shown in FIG. 9, commonly called a magazine, and stores electronic components 8 such as ICs and LSIs. The electronic component shown in this example has a shape in which leads 8b are arranged in rows on the sides of a flat package 8a.

The conveyor belt 5 is an endless annular belt, and the motor 3
The electronic component 8 is driven by the electronic component 8 in the left-front direction in the figure, and is brought into contact with the stationary member 3, which is a stationary member.

FIG. 10 shows enlarged details of the vicinity of the fixed stopper 7.

Conveyor bell 1-5 conveys electronic components in the direction of arrow a.

When the preceding electronic component 8a hits the fixed stopper and stops, the following electronic component 8b and then the subsequent electronic component 8c
Then, they hit each other one after another and stop while being pressed against the preceding electronic component 8a.

Here, the mounting head (member equipped with a suction pad) 13, which is a conveying means for the next step, moves up and down as shown by the reciprocating arrow a to carry out the preceding electronic component 8a. Thereby, the preceding electronic component 8a is separated from the following electronic component 8b.

[Problem to be solved by the invention]

In the separation device according to the above-mentioned known example, when the preceding electronic component 8a is lifted in the direction of the arrow (see FIG. 10), the succeeding electronic component 8b comes into close contact with and presses against the preceding electronic component 8a. ing.

Therefore, when the preceding electronic component 8a is lifted, there is a risk that the following electronic component 8b may be thrown up and fly out.

The electronic component package is an injection molded product made of synthetic resin and has cracks, so the electronic component 8b that follows is likely to be caught and thrown off.

[Problem to be solved by the invention]

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide a structure in which a preceding electronic component sent by a conveyor belt is brought into contact with a fixed stopper, and is held and lifted by suction. An object of the present invention is to provide a method for smoothly and reliably performing a separating operation in an electronic component separating mechanism without subsequent electronic components being lifted or thrown up together, and an apparatus for carrying out the above separating method. It is something to do.

[Means to solve the problem]

In order to prevent the problem of the prior art explained with reference to FIG.
In addition to the fixed stopper 7 provided at the end of the conveyance stroke, a ghost tube means is provided on the upstream side in the conveyance direction (arrow a) to dam the subsequent electronic component 8b, and prevent the subsequent electronic component 8a from being blocked. It is easy to imagine that it would be better to avoid hitting the electronic component 8b.

Conventionally, separation means provided with two stoppers have been attempted, but the separation function is unreliable and unsuitable for high-speed operation.

Therefore, in the method and apparatus of the present invention, a first stopper and a second stopper are further provided on the upstream side of the fixed stopper 7, and the first stopper intermittently stops the subsequent electronic components from the goose 1 to the tube. At the same time, the second stopper also ghost-controls subsequent electronic components.

[Effect]

By the means described above, the first stopper and the second stopper provided on the upstream side of the fixed stopper are actuated alternately,
If the electronic components are sent out one by one, the number of electronic components that hit the fixed stopper and are stopped can be equalized to one.

The preceding electronic component that hits the flange of the fixture is not suppressed by the following electronic component, so even if you lift the preceding electronic component, the following electronic component will be held together with it and will not be thrown away. There's no risk of it getting knocked over.

When carrying out the present invention, if the second stopper is constituted by a suction bat, it is possible to suction and stop the subsequent electronic components without requiring high positional accuracy in the advancing direction, resulting in high operational reliability.

Furthermore, a second stopper made of the above-mentioned suction pad is attached to the first stopper.
If it is mechanically connected to the stopper, timing control will be easy and sequence operation will be performed reliably.

〔Example〕

FIG. 1 is a perspective view showing an embodiment of the apparatus of the present invention configured to carry out the method of the present invention.

A stopper claw 11 as a first stopper is provided in the middle of the horizontal guide section 4 provided with the conveyor belt 5, that is, on the upstream side of a fixed stopper (not shown), and a second stopper claw 11 is provided as a first stopper. Suction pad 12 as a stopper for
Attach.

The stopper pawl 11 is rotatably supported by brackets 22a and 22b via a rotating shaft IO.

The rotating shaft 10 described above is driven by the cylinder 9 via a lever 21.

When the cylinder 9 expands and contracts as shown by the reciprocating arrow d, the lever 21 and the rotating shaft 10 are rotated as shown by the reciprocating arc arrow e.

FIGS. 2 and 3 are explanatory diagrams of an example in which the separation method of the present invention is carried out using the apparatus of the above embodiment.

In FIG. 2, the conveyor belt 5 is intermittently driven in the direction of arrow a.

The above drive is performed by an automatic control device (not shown) that controls (a) a motor for driving the conveyor belt, (b) an operating valve for the cylinder 9 shown in FIG. 1 (not shown), and ( C)
Operation valve for suction pad 12 shown in FIG. 1 (not shown)
This is done under sequence control.

In the state shown in FIG. 2, the stopper pawl 11 is tilted downward in the direction of the arrow f to stop the preceding electronic component 8a from advancing.

The subsequent electronic components 8b and 8c are the same as the preceding electronic component 8a.
It is blocked by a collision with a rock.

As the stopper claw 11 tilts in the direction of arrow f, the suction pad 12 attached thereto is flipped up in the direction of arrow g.

A phantom line 8' indicates a position where the electronic component fed in the direction of the arrow a comes into contact with the fixed stopper 7 and stops.

By the automatic control device (not shown), (5) the stopper claw 11 is tilted upward in the direction of arrow f' (see Fig. 3).
(ii) Drive the conveyor belt 5 in the direction of arrow a.

As a result, the preceding electronic component 8a moves toward the position 8' where it comes into contact with the fixed stopper 7.

In conjunction with the above operation, the suction pad 12 attached to the stopper claw 11 descends as indicated by arrow g' and approaches the subsequent electronic component 8b.

(ni) In this state, the suction pad 12 is communicated with a vacuum source.

As a result, the subsequent electronic component 8b is sucked up and held, separated from the conveyor belt 5, and stopped.

(ilv) When the preceding electronic component 8a passes under the stopper claw 11, the stopper claw 11 is tilted downward and the vacuum source of the suction pad 12 is cut off.

As a result, the subsequent electronic components 8b are transferred to the conveyor bell 1.
It falls upward and advances until it comes into contact with the stopper claw 11.

The state after the above-mentioned operation is completed is as shown in FIG.

That is, the preceding electronic component 8a comes into contact with the fixed stopper 7 and stops, and then the electronic component 8a comes into contact with the fixed stopper 7 and is moved to the next process transport means (the mounting head 13 shown in FIG. 10).
) is waiting to be received by.

The succeeding electronic component 8b is locked by the stopper claw 11 and is stopped apart from the preceding electronic component 8a.

Further, the subsequent electronic component 8c is stopped by the subsequent electronic component 8b.

In this way, the preceding electronic component 8a is separated from the succeeding electronic component 8b.

Therefore, even if the preceding electronic component 8a is picked up by suction,
The subsequent electronic component 8b is not affected by the separate installation.

5 to 7 show embodiments different from the above.

FIG. 5 is a perspective view for explaining the basic configuration of this embodiment, which is basically the same structure as the embodiment shown in FIG. That is, a conveyor belt 5 is provided on the horizontal guide portion 4, and a block-shaped stopper 15 is provided as a first collar, and a separation claw 17 is provided as a second stopper.

14 is a cylinder for driving the stopper 15;
16 is a cylinder for driving the separation claw 17.

The drive motor for the conveyor belt 5 and the operation valves (not shown) for the cylinders 14, 16 are sequentially controlled by an automatic control device (not shown) and operate as described below with reference to FIGS. 6 and 7.

FIG. 6 is an explanatory diagram of the operation corresponding to FIG. 2 in the above-mentioned embodiment, and similarly to FIG. 2, the stopper 15, which is the stopper in FIG. The electronic component 8b that follows is blocked.

The separation claw 17, which is the second stopper, is not operating as a stopper.

FIG. 7 is an explanatory view of the operation corresponding to FIG. 3 in the above-described embodiment, in which the first stopper 15 is opened and the preceding electronic component 8a advances, and the second
The stopper (separation claw 17) stops the advancement of the succeeding electronic component 8b to prevent interference with the preceding electronic component 8a.

The second stopper (suction pad 12) in the above embodiment (FIGS. 1 to 4) is similar to the first stopper (stopper claw 1).
1) and are mechanically interlocked, the second stopper (separation claw 17) of this example (Figs. 5 to 7)
) is controlled via the cylinder 16 by an automatic control device (not shown) and is interlocked with the first stopper 15.

〔Effect of the invention〕

As described in detail above, when the method of the present invention is applied to an electronic component separation mechanism that has a structure in which an electronic component sent by a conveyor belt hits a fixed stopper and stands still, and lifts it, subsequent electronic components are lifted together. The preceding electronic component can be lifted up and delivered to the next process without the risk of it being thrown up or thrown up.

Moreover, according to the separation apparatus of the present invention, the above-described method can be easily and reliably carried out, and its effects can be fully exhibited.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the separation device according to the present invention, with FIG. 1 being a perspective view and FIGS. 2 to 4 being operation explanatory views. 5 to 7 show an embodiment different from the above, in which FIG. 5 is a perspective view, and FIGS. 6 and 7 are operation explanatory views. FIG. 8 is a perspective view showing a conventional example of an electronic component conveying device. FIG. 9 is an explanatory diagram of the horizontal stick in the conventional example. FIG. 10 is an explanatory diagram of the separation operation in the above conventional example. 1...Horizontal stick, 4...Horizontal guide section, 7...
Fixed stopper, 8... Electronic component, 8'... Position of electronic component stopped by fixed stopper, 8a...
Leading electronic component, 8b...Following electronic component, 11...First stopper, 1-flange claw, 12...Second stopper, suction para 1, 15...First Stopper, 16... Separation claw which is the second stopper. Representative Patent Attorney Tadashi Akimoto

Claims (3)

[Claims] 1. A method in which a large number of electronic components that are loaded on a conveyor belt and transported continuously are brought into contact with a fixed stopper, starting from the first one, to be delivered to the conveyance means for the next process, and separated individually from the following electronic components. (a) a first stopper that prevents the electronic component from advancing while being conveyed by the conveyor belt; and (b) a subsequent electronic component adjacent to the electronic component stopped by the first stopper. (c) stopping the preceding electronic component by the first stopper; (d) bringing a succeeding electronic component into contact with the preceding electronic component; e) releasing the first stopper to allow the preceding electronic component to advance; (f) operating the second stopper substantially simultaneously with or in advance of the releasing operation of the first stopper to advance the subsequent electronic component; (g) After releasing the first stopper and allowing the preceding electronic component to advance, the first stopper is actuated at a time interval, and the first stopper causes the preceding electronic component to advance. (h) individually separating the preceding electronic component that has already passed the first stopper position at the time when the subsequent electronic component is stopped by the first stopper; Features: A method for separating electronic components. 2. A device that sequentially abuts a large number of electronic components mounted on a conveyor belt and conveyed continuously against a fixed stopper, starting from the preceding electronic component, and transfers them to the conveyance means for the next process, separating them individually from the following electronic components. (a) A first stopper is provided that is capable of contacting and separating the electronic component while it is being conveyed by the conveyor belt, and (b) the electronic component is stopped by the first stopper. (c) providing a second stopper capable of restraining and releasing a subsequent electronic component adjacent to the conveyor belt; and (c) sequentially controlling the conveyor belt driving means, the first stopper, and the second stopper. It is characterized by being equipped with automatic control means. Electronic component separation equipment. 3. (a) The first stopper has a stopper claw that can be rotated back and forth, and (b) The second stopper is mechanically connected to the first stopper and has a vacuum operated in conjunction with the first stopper. 3. The electronic component separation device according to claim 2, further comprising a suction pad.