JP2014190845A - Hopper - Google Patents

Abstract

Provided is a hopper capable of reliably discharging even an article that easily adheres, such as "sprouts".
A hopper 100 used in a weighing device, which is surrounded by wall surfaces 2 to 5 on the front, rear, left and right sides, and has a hopper body 1 for storing articles to be thrown in from above, and a lower end opening of the hopper body 1 A gate 6 that opens and closes. The gate 6 is pivotally supported by the end portions of the opposite wall surfaces 3 and 4 of the hopper body 1 so as to be swingable downward and inclined, and the inner surface of the gate 6 and the front wall surface 2 Is formed so as to gradually incline downward as it goes downward, and the gate 6 is opened until its inner surface faces downward.
[Selection] Figure 2

Description

  The present invention relates to an improvement of a hopper incorporated in a combination weighing device.

  A combination weighing device is widely known as a device for automatically weighing an article having a variation in unit weight, such as agricultural products, fishery products, and processed foods, to a constant weight. There are various articles to be weighed, and hoppers having various shapes as disclosed in Patent Documents 1 to 4 below have been developed and put into practical use according to their characteristics.

Japanese Utility Model Publication No. 3-42341 Utility Model Registration No. 2506433 Japanese Patent No. 3352504 Japanese Patent No. 3590180

However, when targeting bean sprouts with “beard roots”, the hoppers and embossed hoppers disclosed in Patent Documents 1 to 4 are thin even if the gate is opened and closed. There was a problem that long “hair roots” adhered to the inner surface of the hopper and “sprouts” remained. In particular, if “sprouts” remain in the weighing hopper, the weighing accuracy is affected, which is a fatal problem for the combination weighing device.
This invention makes it a subject to provide the new hopper which can discharge | emit it reliably, even if it is articles | goods which adhere easily like "a sprouts".

  A hopper according to the present invention is a hopper having a hopper body that is enclosed by walls on the front, back, left, and right, and that stores articles to be thrown in from above, and a gate that opens and closes a lower end opening of the hopper body. One end portion of the gate is pivotally supported on both opposing wall surfaces of the hopper body so that the other end portion is positioned below, and the inner surface of the gate contacting the article is connected to the other end portion from the one end portion. The wall surface on the side in contact with the lower end of the other end is also gradually inclined downward from top to bottom when the gate is closed. It is formed in the slope which becomes.

  The inner surface of the gate attached to the lower end opening of the hopper body is inclined downward as it goes downward, and the wall surface of the hopper body in contact with the lower end of the gate is also from above. Since it is formed on a slope that gradually slopes downward, the article thrown into the hopper is pushed into a V-shaped tip formed by the gate and the wall surface. If the gate is opened in this state, the articles pushed into the V-shaped tip of the hopper are entangled with each other or are released in a lump. Therefore, even if a part of the article adheres to the inner surface of the hopper main body or the inner surface of the gate, the attached portion is discharged together with the other articles. For example, the article is likely to adhere like “sprouts”. Even so, the “sprouts” having the “beard root” portion adhering to the inside of the hopper are discharged together with other “sprouts”. It will not remain inside.

  In addition, since the gate whose inner surface is gradually inclined downward is opened to an angle at which the inner surface is directed downward, even if a part of the article adheres to the inner surface of the gate, the weight of the article and the impact at the time of opening. Thus, the article attached thereto is surely peeled off from the inner surface of the gate and dropped.

  According to the present invention, even if the article is attached to the inner surface of the hopper, if the gate is opened, it can be reliably dropped. , It can be discharged reliably. Therefore, it is possible to provide a hopper for a combination weighing device suitable for “sprouts” and the like that does not affect the weighing accuracy.

1 is an external perspective view of a hopper according to an embodiment of the present invention. Side view of the hopper with the gate closed Side view of the hopper with the gate open The side view of the state where the gate of the hopper concerning other embodiments was closed

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

FIG. 1 shows an external perspective view of a hopper according to an embodiment of the present invention, FIG. 2 shows a side view of the hopper in a state where the gate of the hopper is closed, and FIG. 3 shows that the gate is opened. The side view of a state hopper is shown.
In these drawings, a hopper 100 includes a hopper body 1 whose front and rear, right and left are surrounded by wall surfaces 2 to 5, and a gate 6 that opens and closes a lower end opening of the hopper body 1. The front and rear left and right wall surfaces 2 to 5 are such that the front wall surface 2 is inclined obliquely to the rear side, and the left and right wall surfaces 3 and 4 and the rear wall surface 5 are formed vertically, respectively, The wall surface is a rectangular tube. A support bracket 7 attached to a load cell (not shown) is attached to the outside of the rear wall 5.

  The gate 6 is swingably attached to the ends of the left and right wall surfaces 3 and 4 adjacent to the rear side wall surface 5 via a hinge 8 so as to be inclined downward. Further, the inner surface 61 of the gate 6 is formed so as to be gradually inclined downward from the one end portion hinged to the other end portion below. That is, the inner surface of the gate 6 is formed in a polyhedron that warps inwardly. However, the present invention is not limited to this, and instead, it may be formed in a curved surface that warps inwardly. In addition, an opening / closing arm 63 connected to the opening / closing lever 10 is attached to the front side 62 of the gate 6, and a roller 64 is attached to the tip thereof. The roller 64 is sandwiched by a notch portion 11 formed at the tip of the opening / closing lever 10, and when the opening / closing lever 10 swings up and down in the direction of the arrow, the roller 64 and the opening / closing arm 63 move up and down. As a result, the gate 6 swings back and forth around the hinge 8.

  The opening / closing lever 10 is connected to a rotating shaft 12 of a drive motor (not shown) and is rotated around the rotating shaft 12 within a predetermined angle. 100 is a tare that is loaded on a load cell as a weight detection means.

  On the other hand, the front wall surface 2 is inclined obliquely toward the rear wall surface 5, but the surface 21 of the front wall surface 2, particularly in contact with the lower end portion of the gate 6, is more inclined than the slope above it. Is also formed on a slope inclined downward.

  When the gate 6 is closed, as shown in FIG. 2, the opening / closing lever 10 stops at the lower limit position, and the lower end opening of the hopper 6 is brought into contact with the lower end of the front side wall surface 2. Close. In this state, articles such as “sprouts” are put into the hopper 100. In this state, the inner surface 61 of the gate 6 and the inner surface of the front side wall surface 2 are formed as slopes that gradually incline downward from above. Therefore, when an article is thrown into the article, the article is pushed into a V-shaped tip formed by the inner surface 61 of the gate 6 and the front side wall surface 2, and the articles are entangled with each other, It is compressed.

  When the gate 6 is opened, the opening / closing lever 10 is rotated upward, and the gate 6 is rotated rearward accordingly, and the state shown in FIG. 3 is obtained. The article pushed into the tip is released as a lump. For example, even if the article is a “sprout” and the “beard root” portion is attached to the hopper, the “sprout” portion having the “beard root” is pushed by another “sprout”. Alternatively, since the material is dragged and discharged, the attached “hair root” part is also peeled off from the inner surface of the gate and does not remain in the hopper.

  Furthermore, since the inner surface 61 of the gate 6 faces downward when the gate 6 is fully opened, even if “sprouts” adhere to the inner surface 61, it is ensured by the impact and dead weight due to the gate 6 being stopped open. Fall. When the gate 6 reaches the upper open limit, the open / close lever 10 is reversed to return the gate 6 to the original closed position. By such a series of operations, the gate 6 is repeatedly opened and closed.

  As mentioned above, although one Embodiment of this invention was described, this invention is not limited to this, Other embodiments can also be employ | adopted within the range which does not deviate from the summary of this invention. For example, in the above-described embodiment, the lower end portion 21 of the front wall surface 2 is an inclined surface that is inclined further downward than the upper inclined surface, but instead, as shown in FIG. You may form in the curved surface which inclines gradually downward from the top to the bottom, or you may form in the polyhedron which inclines downward like the gate 6. FIG. Further, this hopper is applicable not only to the weighing hopper but also to a pool hopper disposed above the hopper.

  Further, this hopper is applicable not only to “sprouts” but also to other articles that are easily adhered.

DESCRIPTION OF SYMBOLS 1 Hopper body 2 Front wall surface 3 Left wall surface 4 Right wall surface 5 Rear wall surface 6 Gate 61 Gate inner surface 100 Hopper

Claims (2)

  A hopper body that is surrounded by wall surfaces on the front, back, left and right, and that stores articles to be thrown in from above, and a gate that opens and closes a lower end opening of the hopper body, wherein one end of the gate is the other end The inner surface of the gate that is in contact with the article is pivotally supported on both opposing wall surfaces of the hopper body so that the portion is positioned downward, and the inner surface of the gate that is in contact with the article moves downward from the one end to the other end. The wall surface on the side in contact with the lower end of the other end is also formed on a slope that gradually slopes downward from the top when the gate is closed. A hopper characterized by   The hopper according to claim 1, wherein the gate is opened until an inner surface thereof faces downward.

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