JP2570240Y2 - Column or cylindrical article transfer device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a column-shaped or cylindrical article, such as a transfer device for transferring columnar resin pellets for an electronic component toward an injection molding machine, in which an axis extends vertically. The present invention relates to an improvement of a transfer device (parts feeder) configured to transfer in an upright posture.

[0002]

2. Description of the Related Art In the case of manufacturing a resin-sealed electronic component in which a semiconductor chip is sealed with a resin, generally, cylindrical resin pellets are used, and a large number of resin pellets are put into a hopper. After aligning these resin pellets in an upright posture in which the axis thereof extends vertically, the resin pellets are sent out to a transfer path in the form of an upwardly open gutter, and vibrations in a certain direction are applied to this transfer path by a piebrator, thereby raising the upright posture. Thus, the resin pellets arranged in a line are slid and moved toward the molding machine.

[0003]

[Problems to be Solved by the Invention] However, the resin pellets may be sent into the transfer path in a falling state, or the resin pellets may fall down due to vibration during the transfer. There was a problem that the entire molding process was stopped because it could not be supplied to the molding machine in a correct posture.

The present invention has been made in view of such a problem. When a columnar or cylindrical article is transported in an upright state, only an article in a collapsed state is selected at the end of the transport path to automatically perform the transport. The purpose of this is to eliminate transfer mistakes by elimination.

[0005]

In order to achieve the above object, the present invention provides a method of manufacturing a vehicle in which a column-shaped or cylindrical article is slid in an upright state in the middle of a transfer path in the form of an upwardly-opening gutter. The transfer path is provided at the bent portion so that the transfer path comes into contact with the outer peripheral surface of the upper end portion of the article that has been transported in an upright state toward the bent portion and shifts to the transfer path after the bent section. A stopper is provided, and an opening hole is formed in a portion below the stopper so that only the collapsed article passes outside the transfer path. "

[0006]

With this configuration, the article transferred to the bent portion in the middle of the transfer path in the upright state can be supported on the bottom of the transfer path and the outer peripheral surface of the upper end contact the stopper. Therefore, the sheet is sent along the transfer path after the bent portion while being kept in the standing posture without falling down, so that the transition to the next step can be performed without any trouble.

[0007] On the other hand, when the article is transported in the transport path in a tilted posture, the article is automatically moved from the opening hole to the outside of the transport path along the traveling direction without contacting the stopper. Will be eliminated. In this case, the article in the transfer path is tilted in a vertical position so that its axis extends in the transfer direction, and the article is tilted in a horizontal position in which the axis extends in a direction perpendicular to the transfer direction. However, according to the present invention, as described above, even if an article is falling in any direction, the article can be reliably sorted so as to be removed from the transfer path. Therefore, according to the present invention, in transporting a columnar or cylindrical article in the upright state, without causing the article transported in the upright state to fall, only the articles that have been transported in the collapsed state are selected. Since it can be automatically removed out of the transfer path, there is an effect that it is possible to reliably prevent the entire process from being stopped due to a transfer error.

[0008]

Next, an embodiment in which the present invention is applied to the transfer of resin pellets for molding an electronic component will be described with reference to the drawings. 1 to 5 show an embodiment in which the present invention is applied to an apparatus for transferring resin pellets P having an outer diameter D and a height H which are substantially equal.

This transfer device has a gutter-shaped transfer path 1 having a start end connected to a hopper.
A gutter-shaped outlet passage 2 extending in a direction perpendicular to the transfer path 1 in a plan view is connected, and the resin pellets P stopped in an upright state at the end of the transfer path 1 are taken out one by one into the outlet path 2.
This is loaded into the molding machine by an appropriate means (the resin pellet P stopped in an upright state at the end of the transfer path 1 without providing the outlet path 2 is picked up by a vacuum suction collet or the like, Needless to say, it may be taken out directly above.)

At the end of the transfer path 1, a stopper 3, which is in contact with the outer peripheral surface of the upper end portion of the resin pellet P in an upright state, is screwed to the outer surface of the transfer path 2 by a suitable means such as a screw 4. A resin pellet P transferred in a laterally inclined position in which the axis extends in the width direction of the transfer path 1 by partially cutting out the tip of the bottom plate 1a of the transfer path 1 below the stopper 3. The opening hole 5 for eliminating the above is formed.

At this time, when the end of the bottom plate 1a in the transfer path 1 is cut off, approximately half of the lower surface of the resin pellet P in the upright state is supported by the bottom plate 1a. Is set so as to be in contact with the stopper 3, so that the upright state of the resin pellet P is maintained. On the other hand, the distance L from the end face of the bottom plate 1a to the stopper 3 is set to the diameter of the resin pellet P. By setting the dimension slightly larger than D, the resin pellets P transported in a state of being tilted sideways are configured to roll down from the opening 5 forward in the transport direction.

The bottom surface 1b of the bent portion in the transfer path 1
Is formed on an inclined surface which is inclined obliquely upward toward the outlet passage 2. In the above configuration, when the resin pellets P transferred in the transfer path 1 are mixed with the ones that have fallen sideways, only the resin pellets P that have fallen in the horizontal direction are automatically transferred from the opening 5 to the outside of the transfer path 1. Since the resin pellets P in the upright state are taken out in the same posture, it is possible to prevent the entire process from being stopped due to a transfer error.

When the bottom surface 1b of the end portion of the transfer path 1 is formed on an inclined surface obliquely upward toward the outlet passage 2 as in the embodiment, the resin pellets P transferred in the upright state collide with the stopper 3. It is possible to prevent the resin pellet P stopped at the stopper 3 from jumping out of the outlet passage 2 due to vibrations.

Although the above embodiment is applied to the transfer of resin pellets, the present invention can be widely applied to the transfer of various cylindrical, prismatic or tubular articles in an upright state. Needless to say. Further, instead of forming the bottom surface of the bent portion in the transfer path 1 on the inclined surface 1b, as shown by a two-dot chain line in FIG. Arc-shaped recess 1c
Is formed so that the tufts gradually become deeper toward the opening 5, it is easy to remove the resin pellets P lying down in the vertical direction from the opening 5.

[Brief description of the drawings]

FIG. 1A is a perspective view of a first embodiment, and FIG. 1B is a BB view of FIG. 1A.

FIG. 2 is a plan view of the apparatus of FIG.

FIG. 3 is a sectional view taken along line III-III of FIG. 2;

FIG. 4 is a sectional view taken along line IV-IV of FIG. 2;

FIG. 5 is a sectional view taken along line VV of FIG. 2;

[Explanation of symbols]

 P Resin pellets as an example of a columnar article 1 Transfer path 1a Bottom plate of transfer path 3 Stopper 5 Opening hole

Claims (1)

(57) [Scope of request for utility model registration] 1. An apparatus according to claim 1, wherein said column-shaped or cylindrical article is slid in an upright state, and is provided with a laterally extending trough-shaped transfer path.
Direction, and the transfer path is bent at the bent portion.
The upper end of the article that has been transported upright toward the bend
It comes into contact with the outer peripheral surface and moves to the transfer path after this bend.
A stopper is provided, and a portion below the stopper is provided.
At the same time, let only the article in the fallen state pass outside the transfer path.
An apparatus for transferring a columnar or cylindrical article, wherein an opening hole is formed.