JPH0620753Y2 - Parts feeder hopper case - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is applied to a trough (feeding rail) of a component supply device that blows up a component in a hopper case with an air jet and feeds the component by vibration. The present invention relates to a hopper case of a component supply device that supplies and sequentially feeds the supplied components by vibrating a trough.

[Conventional technology]

As a component supply device that blows up the components in the hopper case by an air jet to supply them onto the trough, and sequentially feeds the supplied components by the vibration of the trough, for example, the one disclosed in JP-A-60-31433 is known. Was known.

[Problems to be solved by the invention] Moreover, in the conventional hopper case in this type of component supply device, since the components in the component reservoir are blown up to the upper surface of the trough at once, a considerably strong jet force of the air jet is generated. Not only is the parts strongly stirred and easily scratched, but the amount of parts blown up changes depending on the remaining amount of parts in the parts reservoir, or the parts are not easily removed from the gap between the trough and the trough insertion hole of the hopper case. There were also accidents such as jumping out, and in some cases, the hopper case itself came off the trough of the component supply device.

The Applicant has solved the above problems and does not damage the parts. The hopper of the parts supply device provided with the intermediate reservoir part is surely blown up to the parts guide passage until the remaining amount becomes extremely small. The case is a practical application Sho 60-13008
No. 3 (Japanese Utility Model Laid-Open No. 62-38224).

However, even in this hopper case, the strength of the air jet ejected from the first air nozzle provided at the lowermost end of the component reservoir and the strength of the air jet ejected from the second air nozzle provided in the intermediate reservoir are controlled. In order to do so, it was necessary to adjust each air pressure separately.

[Means for solving problems]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the prior art, the present invention provides a component pool having an inclined surface below the rear end of a trough, and a component blown up obliquely upward from the lower end of the component pool. 1 air nozzle, an intermediate component reservoir for accumulating a relatively small amount of components blown up by the first air nozzle, and a second air nozzle for ejecting components upward from the lower part of the intermediate component reservoir, It is configured such that the component reservoir is provided substantially at the center of the height from the lower end of the component reservoir to the trough.

[Action]

That is, by providing the intermediate reservoir at approximately the center of the height from the lower end of the component reservoir of the hopper case to the trough, the strength of the air jet ejected from the first air nozzle provided at the lowest end of the component reservoir is increased. And the strength of the air jet ejected from the second air nozzle provided in the intermediate reservoir are substantially the same, and these adjustments are unnecessary.

〔Example〕

 Hereinafter, the present invention will be described with reference to the drawings.

Each of the drawings shows one embodiment of the present invention, FIG. 1 is a sectional view showing a main part, FIG. 2 is a plan view, and FIG. 3 is A of FIG.
FIG.

In the figure, reference numeral 1 is a component supply device for feeding components by vibration, and a trough (feeding rail) 2 for feeding components by vibration is fixed to the upper surface thereof. At the rear end of the trough 2, the hopper case 3 of the present invention is mounted on the base 4
It is fixedly placed on top. This hopper case 3
Is made of transparent or translucent plastic,
The remaining amount of internal parts can be seen from the outside.

The hopper case 3 has a trough 2 as shown in the figure.
It has a trough insertion hole 5 for inserting the rear end portion thereof, and this trough insertion hole 5 also serves as a component loading port for loading components into the hopper case 3.

The components introduced from the trough insertion hole 5 are accumulated in the component reservoir 7 formed by the inclined surface 6 at the lower portion of the trough 2, and a part of the component is the lowermost end of the inclined surface 6 and one side wall 9 of the component guide passage 8. It flows down to the upper part of the first air nozzle 11 through the component passage 10 formed by The first air nozzle 11 is provided so as to be inclined toward the component guide passage 8 so that the component is blown up along the component guide passage 8.

The lowermost end of one side wall 9 of the component guide passage 8 extends beyond the position of the first air nozzle 11 to a position sufficiently close to the inclined surface 6 of the component reservoir 7.

The component guide passage 8 is provided diagonally above the first air nozzle 11.
There is an intermediate part reservoir 12 formed substantially at the center of the part, which can store a relatively small amount of parts, and a second air nozzle 13 is opened in the lower part thereof. A component guide passage 8 is continuous above the second air nozzle 13, and the component guide passage 8 continues to a component supply port 14 that is open above the trough 2.

The first air nozzle 11 and the second air nozzle 13 both direct the component that has flowed down from the component reservoir 7 to the upper portion of the first air nozzle 11 or the component accumulated in the intermediate reservoir 12 toward the component guide passage 8. It is opened obliquely upward or upward so as to blow up, and constitutes an ejection port of an air jet controlled by a solenoid valve 15 and supplied with compressed air supplied through air passages 16 and 17 provided in the base 4. To do.

On the other hand, a large number of air vent holes 18 are provided on the upper surface of the hopper case 3, and the parts supplied onto the trough 2 bounce on the upper part of the trough insertion hole 5 of the hopper case 3 or the air generated by the air jet is blown. The flow of water prevents the particles from jumping out of the gap between the trough insertion hole 5 and the trough 2, and does not fit into the transport groove, but is only placed on the upper surface of the trough 2, or two or more overlapped on the trough 2. A wiper 19 for dropping a component is provided in a canopy shape.

The hopper case 3 presses the front end portion with a leaf spring 21 provided at the front end portion of a mounting plate 20 fixed to the upper surface of the base plate 4,
It is attached by fitting the hook 22 at the rear end of the hopper case 3 to the rear end of the base 4.

Next, the operation of the hopper case of the present invention will be described.

When a component is loaded into the hopper case 3 through the trough insertion hole 5 which also serves as a component loading port of the hopper case 3, and the hopper case 3 is attached to the mounting plate 20, the component loaded through the trough insertion hole 5 becomes The first component passes through the component passage 10 formed by the inclined face 6 and the lower end of one side wall 9 of the component guide passage 8 and is accumulated in the component reservoir 7 formed by the lower inclined surface 6. Air nozzle 1
Run down to the top of 1.

Here, when an air jet is jetted obliquely upward from the first air nozzle 11 toward the component guide passage 8, the component is blown up along the component guide passage 8 and a relatively small amount is stored in the intermediate component reservoir 12. Parts are stored.

At this time, the lowermost end of one side wall 9 of the component guide passage 8 is
It extends beyond the position of the first air nozzle 11 to a position sufficiently close to the inclined surface 6 of the component reservoir 7, and the first air nozzle 11 guides the component so that the component is blown up along the component guide passage 8. Since it is provided so as to be inclined toward the passage 8, almost no component is blown up in the opposite direction, and most of the components are blown up along the component guide passage 8.

The components accumulated in the intermediate component reservoir 12 are blown upward by the air jets ejected from the second air nozzles 13 and into the component supply port 14 that is opened above the trough 2 along the component guide passage 8. Be guided.

Here, since the intermediate component reservoir 12 is formed substantially in the center of the component guide passage 8, the strength of the air jet ejected from the first air nozzle 11 and the intensity of the air jet ejected from the second air nozzle 13 are Has an appropriate strength of about the same level, and the air jet is controlled by opening / closing a single solenoid valve 15.

The component guided to the component supply port 14 falls directly or along the inclined surface of the component supply port 14 and is supplied to the upper surface of the trough 2 of the component supply device 1. As is well known, among the components supplied to the upper surface of the trough 2, only the components fitted in the conveying groove formed on the upper surface of the trough 2 are conveyed along the conveying groove on the upper surface of the trough 2 by the vibration of the component supply device 1. Others are trough 2
It falls from and is collected again in the component reservoir 7.

A wiper 19 is provided above the trough insertion hole 5 of the hopper case 3, and the component supplied onto the trough 2 bounces on the upper surface of the trough, or the air flow by the air jet causes the component to enter the trough insertion hole 5. It prevents from jumping out from the gap between the trough 2 and the trough 2, and drops parts that do not fit into the transport groove but just rest on the upper surface of the trough 2 or parts that overlap two or more on the trough 2 to collect parts. Collect in part 7.

The air jet ejected from the air nozzle 11 or 13 to blow up the component does not unnecessarily agitate the component after blowing the component up to the component supply port 14 and then outflowing from the large number of air vent holes 18 to the outside. .

[Effect of device]

In the present invention, since the intermediate component reservoir is formed substantially in the center of the component guide passage, the strength of the air jet ejected from the first air nozzle and the strength of the air jet ejected from the second air nozzle are substantially the same. Has a proper strength, and the air jet can be controlled by opening and closing a single solenoid valve.

[Brief description of drawings]

Each of the drawings shows one embodiment of the present invention, FIG. 1 is a sectional view showing a main part, FIG. 2 is a plan view, and FIG. 3 is A of FIG.
FIG. 1 ... parts supply device, 2 ... trough, 3 ... hopper case, 7 ... parts reservoir, 8 ... parts guide passageway, 11 ...
... first air nozzle, 12 ... intermediate reservoir, 13 ... second air nozzle.

Claims (1)

[Scope of utility model registration request] 1. A slope located below a rear end portion of a trough in a hopper case of a component supply device which is provided at a rear end portion of a trough for feeding a component by vibration and supplies a component onto the trough by an air jet. A component reservoir having a curved surface, a first air nozzle that blows the component obliquely upward from the lower end of the component reservoir, and an intermediate component reservoir that retains a relatively small amount of the component blown up by the first air nozzle, It has a second air nozzle that blows a component upward from the lower part of the intermediate component reservoir, and the intermediate component reservoir is provided substantially at the center of the height from the lower end of the component reservoir to the trough. And an air source for the second air nozzle are the same, and the first air nozzle and the second air nozzle are simultaneously supplied with the same air pressure. Hopper case of the component supplying device, characterized in that the.