JPH0715200Y2 - Columnar component size selection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a size selecting device for a columnar part such as a column or a prism, and more particularly to a device for selecting a columnar electronic part based on a length dimension.

[Prior Art] Conventionally, as shown in FIG. 3, a length dimension selecting device for a columnar electronic component of this type has a plurality of diameters slightly larger than a diameter or a diagonal dimension of a component a to be sorted. The perforated plate 1 in which the through holes 2, 2, ... Are dispersedly arranged, the bottom plate 3 provided in parallel below the perforated plate 1 at a predetermined distance d, and the perforated plate 1 and the bottom plate 3. In order to prevent the component a from dropping from above, side walls (not shown) provided on these sides and these are vibrated to cause the component a on it to advance in a certain direction. It has been proposed to provide a straight feeder (not shown).

The parts a, a ... To be sorted, which have been supplied onto the perforated plate 1, are inserted into the through holes 2, 2 ,. When the length of the component a is smaller than the interval d, the component a vertically passes through the through holes 2, 2, ... And drops onto the bottom plate 3, and thereafter, this falls on the bottom plate 3 by a straight feeder. Proceed upwards in a certain direction, bottom plate 3
Is discharged at the end of the container and stored in a container arranged at the same end. On the other hand, the component a having a dimension longer than the distance d between the perforated plate 1 and the bottom plate 3 is blocked by the bottom plate 3 and cannot completely pass through the through hole 2. For this reason, the upper end of the component a hits the edge of the through hole 2 and the through hole 2 on the bottom plate 3
Is stopped at the position.

When the sorting is completed, the supply of the component a to the perforated plate 1 is stopped, and the perforated plate 1 is removed above the bottom plate 3 to make it longer than the standard dimension stagnant between the perforated plate 1 and the bottom plate 3. The component a is left on the bottom plate 3. Further, the component a is transported to the end of the bottom plate 3 by the straight feeder and stored in another container (not shown) arranged in exchange for the container.

In this way, by setting the distance d between the perforated plate 1 and the bottom plate 3 to a predetermined value according to the length of the part a to be selected, the columnar part a is selected based on its length. can do.

[Problems to be Solved by the Invention] However, in the above-described conventional length dimension selecting device, a part a longer than the interval d hits the bottom plate 3 and stops at the position of the through hole 2, so that FIG. As shown, the subsequent parts a, a ... Having passed through the through-hole 2 are hindered from advancing on the bottom plate 3, and the subsequent parts a, a. Then, once the parts a, a ... Accumulate, the perforated plate 1 has to be removed above the bottom plate 3 to discharge the accumulated parts, and the work is interrupted. The parts a, a ... That have been discharged as a result have a problem that some of them have dimensions smaller than the standard and some of them exceed the standard, and these must be re-sorted again.

In view of the above-mentioned conventional problems, an object of the present invention is to allow a part that has passed through a through hole of a perforated plate to be ejected without being hindered by a part that cannot pass through the through hole, thereby enabling smooth sorting and operation. An object of the present invention is to provide a highly efficient length dimension selection device.

[Means for Solving the Problems] That is, the gist of the present invention for achieving the above object is as follows.
The perforated plate 10 in which a plurality of through holes 11, 11 ... Through which the columnar parts a to be selected can vertically pass can be arranged, and the perforated plate 11 is displaced from the through holes 11, 11 ,. Along with
The perforated plate 10 has openings 21, 21 ... Which can pass through the component a.
To an intermediate plate 20 arranged in parallel thereunder at a predetermined interval corresponding to the length of the component a to be selected,
A bottom plate 30 disposed below and spaced apart from the intermediate plate 20.
On the intermediate plate 20 and the bottom plate 30.
And a means for advancing in a fixed direction.

[Operation] In the device according to the present invention, the component a is to be sorted from the perforated plate 10 in which a plurality of through holes 11, 11 ... Through which the columnar component a to be sorted can vertically pass are dispersed. The intermediate plate 20 at a predetermined distance d corresponding to the length
Since the component a having a length larger than the interval d cannot be completely passed through the through holes 11, 11, ... Of the perforated plate 10, the lower end thereof abuts the intermediate plate 20 and stops.
Here, the intermediate plate 20 has openings 21, 21 through which the component a can pass.
... are provided, but the openings 21 and 21 are the perforated plate 10
Of the component a that cannot pass through the through holes 11, 11 ...
... can't pass either. On the other hand, the part a having a length smaller than the interval d passes through the through holes 11, 11 ... of the perforated plate 10 and drops onto the intermediate plate 20 to move on the intermediate plate 20 in a certain direction. Try to move to. And this part a is an intermediate plate
It reaches an opening 21 formed in 20 and passes through this opening 21 and falls onto a bottom plate 30 below. After that, the part a advances in a certain direction on the bottom plate 30, and is discharged from the bottom plate 30 at its end,
It can receive a container or the like for storing parts.

[Embodiment] An embodiment of the present invention will be described below in detail with reference to FIGS. 1 and 2.

FIG. 1 is a perspective view showing an embodiment of the present invention, in which an intermediate plate 20 is disposed under a perforated plate 10 and a bottom plate 30 is disposed below the intermediate plate 20 in parallel with each other at intervals d, d. These are vibrated by the straight feeder 40. The distances d and d between the perforated plate 10 and the intermediate plate 20 and between the intermediate plate 20 and the bottom plate 30 are generally set by inserting spacers of a predetermined height therebetween, and the height of the spacers is set. The distance can be changed by changing the distance. Further, in addition to such a spacer, a means for setting the interval may be used using one having an adjusting mechanism such as a ball screw. Here, in particular, the distance d between the perforated plate 10 and the intermediate plate 20 is set in correspondence with the length serving as a reference for selecting the component a.

The perforated plate 10 is provided with through holes 11, 11 ... Having a diameter slightly larger than the diameter (diagonal dimension in the case of a prism-shaped component) of the component a to be selected and distributed uniformly. In the illustrated case, through holes arranged at regular intervals in the width direction of the perforated plate 10.
The rows 11, 11, ... Are arranged in the longitudinal direction of the porous plate 10 at regular intervals. The through holes 11, 11 shown in FIG.
Is a straight hole having a uniform diameter as a whole, but the opening is preferably enlarged in a tapered shape so that the part a on the porous plate 10 can easily enter. An unsorted parts container 60 is arranged at the end of the porous plate 10. Then, the end portion of the perforated plate 10 in which the unsorted component storage container 60 is arranged,
That is, except for the ends on the side where the components a, a ... Are discharged, the periphery of the upper surface of the porous plate 10 is surrounded by the enclosure wall 12 that prevents the components a, a ...

In the intermediate plate 20, openings 21 are arranged at positions displaced from each other on a plane, avoiding the positions directly below the through holes 11, 11 ... Of the porous plate 10. The openings 21, 21, ... Shown in the drawing are long holes that are long in the width direction of the intermediate plate 20, and these holes are formed in the rows of the through holes 11, 11, .. They are arranged offset. The opening 21 is not limited to the one shown in the drawing, and for example, the openings 21, 21, ... Are provided obliquely to the transport path of the component a, or the honeycomb-shaped openings 21, 21.
It is also possible to form ... The width of the openings 21, 21 ... Is set to a size that allows the parts a, a ... Except for the end of the intermediate plate 20, that is, the end on the side where the components a, a ... Are discharged, the periphery of the upper surface of the intermediate plate 20 is
Surrounded by a wall 22 that prevents the parts a, a ...
The surrounding wall 22 also serves as a spacer for setting the distance d between the porous plate 10 and the intermediate plate 20.

The bottom plate 30 is made of a flat plate, and the sorted parts container 50 is arranged at the end thereof. This sorted parts storage container 50
Except for the end portion of the bottom plate 30 on which is arranged, that is, the end portion on the side where the components a, a ... Are discharged, the periphery of the upper surface of the bottom plate 30 is
Surrounded by a wall 31 that prevents the parts a, a ...
The surrounding wall 31 also serves as a spacer that sets the distance between the intermediate plate 20 and the bottom plate 30.

In the columnar component size selection device having such a configuration,
The parts to be sorted a, a ... Are inserted into the through holes 11, 11 ... of the perforated plate 10 in an upright state. When the length of the component a is smaller than the distance d between the perforated plate 10 and the intermediate plate 20, the component a vertically passes through the through holes 11, 11 ... And falls on the intermediate plate 20. , Then, this tries to proceed on the intermediate plate 20 in a certain direction by the straight feeder. Then, the part a reaches the opening 21 formed in the intermediate plate 20, and drops through the opening 21 onto the lower bottom plate 30. After that, the part a advances in a certain direction on the bottom plate 30, and
It is discharged at the end of 30 and stored in a container arranged at the same end.

On the other hand, the component a having a dimension longer than the distance d between the porous plate 10 and the intermediate plate 20 is blocked by the intermediate plate 20 and cannot completely pass through the through holes 11, 11 ... Of the porous plate 10. Therefore, the upper end of the component a hits the edges of the through holes 11, 11 ... And is stopped while standing on the intermediate plate 20. Here, the intermediate plate 20 is provided with openings 21, 21 ... Through which the component a can pass. The openings 21, 21 are through holes of the porous plate 10.
Since they are arranged away from 11, 11, ...
A component a that cannot pass through 11 ... Cannot pass through the openings 21, 21 ...

When finishing the selection, after stopping the supply of the component a to the perforated plate 10, the perforated plate 10 is removed above the intermediate plate 10 so that the perforated plate 10 and the intermediate plate 20 are stagnant. A part a longer than the dimension is left on the intermediate plate 20. And
The component a drops onto the bottom plate 30 through the openings 21, 21, ... And is conveyed to the end of the bottom plate 30 by the straight feeder and is replaced with another container (Fig. (Not shown).

In this way, by setting the distance d between the perforated plate 10 and the intermediate plate 20 to a predetermined value according to the length of the component a to be selected, the columnar component a with the length as a reference is set. Can be sorted. In this case, the through hole 1 of the perforated plate 10
The component a that has passed through 1, 11 ... Almost does not pass over the intermediate plate 20, falls through the openings 21, 21 ... to the bottom plate 30, and moves on the bottom plate 30. It is possible to discharge without being obstructed by the part a which does not pass through the holes 11, 11.

[Advantages of the Invention] As described above, according to the present invention, the component a longer than the reference dimension that cannot pass through the through holes 11, 11 ...
Stops on the intermediate plate 20, and the through holes 11, 11 ...
The part a that is shorter than the standard size that has passed through is the opening of the intermediate plate 20.
It goes down through 21 to the bottom plate 30, and advances on the bottom plate 30. For this reason, the latter part a can be smoothly discharged without being hindered by the former part a, and reliable and efficient selection of parts can be performed.

[Brief description of drawings]

FIG. 1 is a perspective view of a parts size selecting apparatus according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of an essential part of the apparatus, and FIG. 3 is a view of a parts size selecting apparatus of a conventional example. FIG. 10 ... perforated plate, 11 ... through hole of perforated plate, 20 ... intermediate plate,
21 …… Middle plate opening, 30 …… Bottom plate, 40 …… Straight feeder, a …… Parts

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-55-125700 (JP, A) JP-A-50-12759 (JP, A) Actually opened 61-95715 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A perforated plate 10 in which a plurality of through holes 11, 11 ... Through which a columnar component a to be selected can pass vertically are arranged, and a through hole 11, 11 ,. And the openings 21, 21 ...
An intermediate plate 20 is arranged in parallel below the porous plate 10 at a predetermined interval corresponding to the length of the component a to be selected, and below the intermediate plate 20 at an interval from the intermediate plate 20. A columnar component size selecting apparatus comprising: a bottom plate 30 provided and means for advancing the components a, a ... On the intermediate plate 20 and the bottom plate 30 in a fixed direction.