JPS6253414B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for supplying small parts, and more particularly to a method suitable for automatically supplying chip parts such as chip resistors and chip capacitors.

Generally, a method called "Daruma Otoshi" is employed when discharging electrical components stored in a magazine one by one from the bottom of the magazine.

This method uses a pressing means to push out the small parts at the bottom of the magazine, but in this method, first, if the small parts are very small and light,
If there is an accident where the small parts do not fall downwards, that is, they get stuck due to friction with the inner wall of the magazine, or if the small parts are pressed against the inner surface of the magazine, the small parts may dig into the inner surface and fall at the bottom. It is often difficult to send individual information.

In such cases, a weight is usually placed above the small component, but if a weight of the weight required for forced drop is placed, the entire device will become quite heavy if there are many magazines. .

The present invention eliminates the above-mentioned drawbacks and proposes a new method for supplying small parts, which enables small parts, particularly small electric parts such as chip resistors and chip capacitors, to be delivered reliably and quickly.

The present invention will be explained below with reference to the drawings. Figures 1 to 3 are state diagrams for explaining the method of supplying small parts according to the present invention, and Figure 1 shows the state before the start of the supply operation, and FIG. 2 shows a state in which the supply operation is in progress, and FIG. 3 shows a state in which the supply operation of small parts is completed.

First, as shown in FIG. 1, small components 1 such as chip resistors and chip capacitors are placed on a rail 2.
They are stored inside the magazine 3 in a stacked state. First and second pressing means 4 and 5 are provided facing each other across the magazine 3, and the pressing means 4 and 5 are formed thinner than the thickness of the small component 1.

Initially, as shown in FIG. 1, the pressing means 4 and 5 are separated from the magazine 3, but then as shown in FIG. , 5 substantially clamp the small parts 1 at the bottom of the magazine 3. The lowermost small component 1 is therefore reliably captured by both pressing means 4, 5.

From this state, as shown in Figure 3, the small part 1
Both pressing means 4 and 5 simultaneously move to the left on the rail 2 while substantially sandwiching the same. Therefore, the small part 1 is delivered to the position shown in the figure and is in a positioned state, and then when the small part 1 is removed by a moving device such as a vacuum chuck, the first pressing means 4 on the right side is moved to the right side. 1, and return to the state shown in FIG.

As described above, the lowermost small parts 1 are sequentially delivered from the magazine 3 by repeating the cycle of the states shown in FIG. 1→FIG. 2→FIG. 3→FIG. 1 as a delivery operation.

In the state shown in FIG. 1, if air is blown from the air blowing nozzle 7 from above the piston 6 made of foamed ethylene or the like placed on the top of the small part 1 in the magazine 3, the small part 1 will float. This is prevented, and the posture of the small component 1 within the magazine 3 can be maintained in a predetermined state.

In order to ensure that the small component 1 falls downward, the small component 1 in the magazine 2 is vibrated by a vibrating means 8 in the drawing, for example a vibrator, to ensure that the small component 1 is sent downward. Become.

As described above, according to the present invention, the small parts stored in the magazine are sequentially delivered from the stacked lower part by the pressing means and then transferred. In this case, when the lowermost part is sent away from the part immediately above it, even if the thickness of the pressing member is thinner than the thickness of the part, it will not be pushed out by the part immediately above it, and the pressing member will continue to work until the delivery is completed. Since it is maintained in a stable clamped state and the feeding operation is performed reliably and quickly, if the present invention is applied to an automatic feeding device for printed circuit boards such as electronic components, such as chip resistors and chip capacitors, in particular, It is extremely effective.

[Brief explanation of the drawing]

FIG. 1, FIG. 2, and FIG. 3 all show state diagrams for explaining the method of supplying small parts according to the present invention. Explanation of main drawing numbers, 1...Small parts, 3...Magazine, 4...First pressing means, 5...Second pressing means,
6...Piston, 7...Air blowing nozzle.

Claims (1)

[Scope of Claims] 1. A small parts supply method in which small parts stored in a stacked state in a magazine are sequentially fed out from below, in which first and second parts are provided facing each other across the magazine. A method for supplying small parts, characterized in that the pressing means are moved closer to each other, the lowermost small part in the magazine is clamped between the two pressing means, and the small component at the bottom of the magazine is fed out by both pressing means while being held. . 2. Claim 1, characterized in that a piston is placed on the top of the small component in the magazine, and the small component is pressed downward by blowing air above the piston. How to supply small parts as described in section.