JPS62869Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an article suction device, and more particularly to an article suction device that can adsorb small articles such as pellets and transfer them from one place to another by changing the pitch.

For example, if you want to change the pitch of semiconductor pellets on Millimix paper and transfer them to another tray,
Previously, workers used tweezers to pick up pellets one by one and transfer them onto a tray.
However, in this case, the tips of the tweezers often inadvertently damage the pellets, which often results in chipping of the pellets and changes in the characteristics of the semiconductor pellets.

Also, instead of pinching the pellets with tweezers, attempts have been made to use a suction nozzle tube to absorb one of the pellets and transfer it from one location to another, but in this case, it is difficult to prevent damage to the pellets. However, it was difficult to improve work efficiency.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an article suction device that allows articles to be efficiently transferred from one location to another at different pitches.

Therefore, in order to achieve the above object, the article suction device according to the present invention includes a central fixed arm, and a plurality of movable pieces arranged in parallel on both sides of the fixed arm, and one end of which is connected to the fixed arm. In an article suction device comprising an arm and a suction nozzle pipe held at the free end of each of the fixed arm and the movable arm, the interval between the arms can be freely adjusted, and the arm interval adjustment mechanism is configured as described above. An adjusting threaded rod fixed to the middle of the fixed arm and having a threaded portion passing through the movable arm, a spring incorporated between the fixed arm and the movable arm to spring the movable arm outward, and a threaded portion of the threaded rod. It is characterized by comprising an adjustment nut screwed into the.

An embodiment of the article suction device according to the present invention will be described below with reference to the drawings.

In FIG. 1, the article suction device, designated as a whole by reference numeral 1, has a fixed arm 2 in the center and a pair of movable arms 3, 4 arranged in parallel on both sides of the fixed arm 2. The proximal end of is connected to the proximal end of the fixed arm 2 via spacers 5 and 6.

A suction nozzle pipe 7 is provided at the free end of the fixed arm 2.
are held, and suction nozzle pipes 8, 9 are also fixed to the free ends of the movable arms 3, 4. These suction nozzle pipes 7, 8, and 9 are straight pipes of equal length, and are positioned so that the suction ports 7a, 8a, and 9a are located in the same plane.

On the other hand, the rear end 7 of each suction nozzle pipe 7, 8, 9
Suction hoses 10 and 1 are attached to b, 8b, and 9b, respectively.
1 and 12 are connected, and although these suction hoses are not shown, they are connected to a vacuum source.

An adjusting threaded rod 13 is provided in the lateral direction approximately at the center of the fixed arm 2 in the longitudinal direction.
4, with right-handed screws 1 at both free ends.
5A and a left-hand thread 15B are respectively formed.
These right-handed screws 15A and left-handed screws 15B extend laterally through through holes 3a and 4a of movable arms 3 and 4, respectively.

Adjustment nuts 16A and 16B are screwed into the right-hand thread 15A and left-hand thread 15B, respectively.
6B serves as a stopper for the movable arms 3 and 4, as will be described later.

Further, coil springs 17A and 17B are incorporated between the fixed arm 2 and movable arm 4 and between the fixed arm 2 and movable arm 3,
In this embodiment, coil springs 17A, 1
7B is attached concentrically to the outside of the adjusting screw rod 13.

Furthermore, the fixed arm 2 is provided with stopper pins 18 protruding from both sides, and the movable arm 3 is disposed opposite to these stopper pins 18.
and 4 are provided with stoppers 19, 20, and as shown in FIG. collision,
The minimum pitch _P1 of the suction nozzle pipes 7, 8, and 9 is regulated. On the other hand, the maximum pitch _P2 of the suction nozzle pipes 7, 8, 9 is when the movable arms 3, 4 are opened most outwardly as shown in FIG. 15A, 15
Set by B.

Next, a method of using the article suction device according to the present invention will be described with reference to FIGS. 3 to 6.

Figure 4 shows the semiconductor pellets that are handled.
W ₁ , W ₂ , . . . W _o are shown, which are placed close to each other on the Millimics paper 21. In addition, Fig. 6 shows pellets inside the recess of the tray 22.
It shows a state in which W ₁ , W ₂ , and W ₃ are stored. And the pitch of the pellets is 2mm paper
It is assumed that P ₁ is on the tray 1 and P ₂ is on the tray 22, so that the relationship P ₁ <P ₂ exists.

Now, in such a case, the article suction device 1 according to the present invention can be used to collect pellets of millimics paper 21.
To transfer W ₁ , W _{2 .} . . W _o onto the tray 22, first move the movable arms 3 and 3 as shown in FIG.
Hold 4 between your fingers and attach stopper 1 to stopper pin 18.
Reduce until 9 and 20 collide. Then, since the pitch between the suction nozzle pipes 7, 8, and 9 at this time can be set to P ₁ , the pitch between the suction nozzle pipes 7, 8, and
9 in communication with a vacuum pressure source, the suction nozzle pipe 7,
The nozzle openings 8 and 9 are brought close to the pellets W ₁ , W ₂ , and W ₃ on the MilliMix paper 21 and the three pellets are suctioned and held at the same time.

Next, the tray 22 shown in FIG.
The movable arms 3, 4 are opened by the spring forces A, 17B until they come into contact with the adjusting nuts 16A, 16B. FIG. 5 shows the state at this time, and the pitch of the suction nozzle pipes 7, 8, and ₉ is P2. Therefore, if the pellets W _{1 , W 2 , and W 3 are brought close to the top surface of the tray 22 and the pellets W 1} , W ₂ , and W ₃ are aligned with the recesses, and the vacuum is released in that state, the pellets W ₁ , W ₂ , and W ₃ are moved to the tray 22. can be set above. By transferring the pellets in this way, three pellets
W ₁ , W ₂ and W ₃ can be set simultaneously.

In the above embodiment, one movable arm is arranged on each side of the fixed arm, but the present invention is not limited to this embodiment, and several movable arms can be arranged as necessary. It is.

By using the article suction device of the present invention, the same worker who conventionally transferred 10,000 pellets a day can process 24,000 pellets in the same amount of time using the article suction device of the present invention. became possible.

As is clear from the above explanation, according to the present invention, the pitch of the plurality of suction nozzle pipes that suction and hold the articles can be easily changed, so that the articles can be placed on the tray at the desired pitch. be able to. Furthermore, since two or more articles can be suctioned and held at the same time, work efficiency can be greatly improved compared to the conventional method of picking up articles one by one.

[Brief explanation of drawings]

Fig. 1 is a plan view showing the article suction device according to the present invention in an expanded state, Fig. 2 is a plan view showing the same adsorption device in a contracted state, and Fig. 3 shows the nozzle suction pipe in the minimum pitch state. Fig. 4 is an explanatory diagram showing a group of pellets on Millimix paper, Fig. 5 is a front view showing the nozzle suction tube in the maximum pitch state, and Fig. 6 shows pellets transferred onto the tray. FIG. 2... Fixed arm, 3, 4... Movable arm,
7, 8, 9... Suction nozzle pipe, 13... Adjustment threaded rod, 16A, 16B... Adjustment nut, 17A, 1
7B...Coil spring.

Claims (1)

[Claims for Utility Model Registration] (1) A central fixed arm, a plurality of movable arms arranged in parallel on both sides of the fixed arm, and one end of which is connected to the fixed arm, and the fixed arm. and a suction nozzle pipe held at each free end of a movable arm, and the distance between the arms is configured to be freely adjustable, wherein the arm distance adjustment mechanism is located in the middle of the fixed arm. An adjustment screw rod that is fixed and has a threaded portion passing through the movable arm, a spring that is incorporated between the fixed arm and the movable arm and springs the movable arm outward, and an adjustment screw that is screwed into the threaded portion of the screw rod. An article adsorption device comprising a nut. (2) Utility Model Registration Claim 1: The article suction device according to claim 1, wherein the spring is installed concentrically on the outside of the adjusting threaded rod.