JP2018008810A - Shock absorber in grain chute piping - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shock absorber in grain chute piping which, even when the shock absorber for allowing grain to stay is provided in an inclined chute, does not require cleaning for removing the staying grain whenever the kind or the like of the transported grain is changed or whenever transportation operation is completed.SOLUTION: According to a shock absorber in grain chute piping 2, at the lower end part of an inclined chute for guiding and allowing charged grain to flow obliquely downward, there is provided a shock absorbing box 1 which includes: an inflow opening 3 communicating with the lower end part of the inclined chute; a bottom face 6 facing the inflow opening; and a discharge opening being in contact with the lowermost side of the bottom face and located so as to be approximately perpendicular to the face of the inflow opening. In the discharge opening, a regulation plate 9 is provided so that a relatively large upper discharge opening part and a relatively small lower discharge opening part are formed.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a grain chute pipe for conveying grains containing rice wheat and beans, and more particularly to a shock absorber in a grain chute pipe.

  Conventionally, when grain is caused to flow down by its own weight using a chute pipe, the acceleration speed increases and the flow speed increases, so that it collides with the inner wall surface of the chute at the bent part (elbow) of the chute, and various mechanical devices and belts at the transport destination. Crushing into the supply section of a conveyor device such as a conveyor damages the grain, and causes rapid wear of the elbow section and scattering of the grain around.

Therefore, a dent is formed at the end of the oblique chute and a downward chute is connected to the slightly upstream side, and a small amount of grain is retained in the depression so that the grain flowing down from the oblique chute at a high speed can be obtained. It has been known that when it is received by the grain in the depression, it falls down in the downward chute at a reduced flow speed (see FIG. 7 of Patent Document 1).
However, in the case of Patent Document 1, it is necessary to clean and remove the grains staying in the depression when the grains to be conveyed change or at the end of the conveying operation.

3-28393

  In view of the above problems, the present invention removes the retained grains every time the varieties of the transported grains change or when the transporting operation is completed, even when a buffer device for retaining the grains is provided on the inclined chute. It is an object of the present invention to provide a shock absorber in a grain chute pipe that does not need to be cleaned.

In order to achieve the above object, the shock absorber in the grain chute pipe of the present invention comprises:
The bottom surface of the inclined chute that guides the grain to be introduced to flow obliquely downward, the inlet that communicates with the lower end of the inclined chute, the bottom surface that faces the inlet, and the lowest side of the bottom surface and the inlet surface And a discharge box located at a substantially right angle, and a restriction plate is provided on the discharge port to form a relatively large upper discharge port and a relatively small lower discharge port. It is characterized by.

  The restriction plate may be provided so as to be vertically movable so that the sizes of the upper discharge port and the lower discharge port are relatively variable.

  A discharge rod is provided at the discharge port, and a discharge-side transfer pipe facing downward is preferably connected to the lower end of the discharge rod.

An inflow side transfer pipe may be provided at the inflow port, and the inflow side transfer pipe and the lower end of the chute may be connected by a connection pipe.

Grain that flows down from the lower end of the inclined chute to the inlet of the buffer box is subjected to a buffering action by colliding with the grain blocked by a regulating plate provided at the outlet of the buffer box. At that time, even if the grain flow rate increases, the grains are discharged sequentially from the upper opening, so that the grain does not clog in the buffer box. Minimal grain is retained. Further, since the grain is completely discharged from the lower opening with the end of the grain conveying operation, no residual grain is produced.

  In order to make the size of the upper outlet and the lower outlet relatively variable, the restriction plate can be moved up and down to adjust the restriction plate according to the size and properties of the grain and the flow rate of the grain, The optimal amount of grain can always be stored in the buffer box.

It is a side view of a buffer box showing an embodiment of the present invention. It is sectional drawing of the AA line in FIG. FIG. 2 is a perspective view of the drying box of FIG.

Hereinafter, a shock absorber in a grain chute pipe according to an embodiment of the present invention will be described with reference to the drawings.
In FIG. 1, a buffer box 1 is provided at the inclined lower end portion of the inclined chute 2. That is, the inflow side transfer pipe 4 projecting from the round hole-shaped inflow port 3 provided on one surface of the substantially box-shaped buffer box 1 and the inclined lower end portion of the inclined chute 2 are connected by the band-type connecting pipe 5. To do.
In the buffer box 1, the surface opposite to the surface where the inlet 3 is opened is formed as a bottom surface 6, and urethane rubber 7 is attached to the inner surface side of the bottom surface 6. The surface and the bottom surface 6 that open the inlet 3 are in a substantially perpendicular relationship to the inclination angle of the inclined chute 2, and therefore the inlet 3 and the bottom surface 6 are both provided in an inclined shape.

The bottom surface 6 is an inclined rectangular surface, and a discharge port 8 is formed between the lowest side of the bottom surface 6 and the lowest side of the surface opening the inflow port 3. The discharge port 8 has a substantially square shape, and a regulating plate 9 is provided so as to close the discharge port 8. The restriction plate 9 is bent to form bracket portions 10a and 10b, and the restriction plate 9 is mounted between the pair of side surfaces 11a and 11b facing the discharge port 8 by the pair of bracket portions 10a and 10b. .
Further, a plurality of elongated holes 12 are provided in the pair of side surfaces 11a and 11b so that the restricting plate 9 can be moved up and down, and the pair of bracket portions are provided by the butterfly bolts 13 and the like through these elongated holes 12. 10a and 10b are fixed. As a result, a relatively large upper discharge port portion 8a is formed on the upper side of the restriction plate 9, and a relatively small lower discharge port portion 8b is formed on the lower side. And by forming the notch part 9a in the center part of the upper edge of the said control board 9, the said upper discharge port part 8a can be ensured more largely.

  A hopper-shaped discharge rod 14 is connected to the discharge port 8, and a discharge-side transfer pipe 15 facing downward is connected to the lower end of the discharge rod. In addition, an inspection window 16 is opened on one side surface 11b of the buffer box 1 and a transparent resin plate 17 is attached to the inspection window 16 as a lid so that the buffer state can be confirmed.

According to the present embodiment, the grains, such as red beans, that flow down in the inclined chute 2 due to their own weight, initially flow in from the inlet 3 of the buffer box 1 and directly collide with the urethane rubber 7 on the bottom surface 6. The red beans to be dammed up are restrained by the restriction plate 9 and a certain amount is accumulated at the bottom of the buffer box 1. Here, the lower discharge port portion 8b has an opening degree that matches the size through which a single bean can pass in advance, so that a small amount of bean can be retained so that the red bean is not excessively discharged from the lower opening portion 8b. Hold. Thereby, since the red bean particles flowing in from the inlet 3 can softly land by colliding with the red beans staying at the bottom, the red beans are not damaged or jumped, and the cut portion of the restriction plate 9 9a overflows into the discharge rod 14 and is conveyed to the next process via the discharge side transfer pipe 15.

And when the transfer amount of the red beans from the previous process increases rapidly for some reason, the red beans are not clogged in the buffer box 1 by being discharged from the upper discharge port portion 8a including the cut portion 9a. On the other hand, even if the transfer amount of the red beans from the previous process has decreased sharply, the lower discharge port 8b is adjusted according to the size of the red beans, so that a certain amount stays at the bottom of the buffer box 1, Buffering action can be maintained. If there is no transfer of the red beans from the previous process, the red beans are all discharged from the lower discharge port 8b, so that there is no residue at the bottom of the buffer box 1.

Next, when carrying soybeans instead of red beans, loosen the butterfly bolt 13 and slide the position of the regulating plate 9 upward to adjust the gap so that one soybean can pass through the lower discharge port 8b, The restriction plate 9 is fixed by tightening the butterfly bolt 13.

  The shock absorber in the grain chute pipe of the present invention has a simple configuration and can be used when conveying easily damaged grains, and has a very high utility value.

1 Buffer box
2 Inclined chute 3 Inlet 4 Inlet side transfer pipe 5 Connection pipe 6 Bottom face 7 Urethane rubber 8 Discharge port 8a Upper discharge port 8b Lower discharge port 9 Restriction plate 10a, 10b Bracket part 11a, 11b Side face 12 Long hole 13 Butterfly bolt 14 Discharge basin 15 Discharge side transfer pipe 16 Inspection window 17 Transparent resin plate

Claims (4)

  The bottom surface of the inclined chute that guides the grain to be introduced to flow obliquely downward, the inlet that communicates with the lower end of the inclined chute, the bottom surface that faces the inlet, and the lowest side of the bottom surface and the inlet surface And a discharge box located at a substantially right angle, and a restriction plate is provided on the discharge port to form a relatively large upper discharge port and a relatively small lower discharge port. A shock absorber in a grain chute pipe characterized by   2. The shock absorber in a grain chute pipe according to claim 1, wherein the restriction plate is provided so as to be movable up and down so that the sizes of the upper discharge port and the lower discharge port can be made relatively variable.   The shock absorber in the grain chute pipe according to claim 1 or 2, wherein a discharge basket is provided at the discharge port, and a discharge side transfer pipe directed downward is connected to a lower end of the discharge basket. 4. A shock absorber in a grain chute pipe according to claim 1, wherein an inflow side transfer pipe is provided at the inflow port, and the inflow side transfer pipe and the lower end of the chute are connected by a connecting pipe.

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