JP2006089175A - Granular material feeding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a granular material feeding device capable of eliminating a phenomenon that a granular material stays over a screw body and a place near the screw body becomes hollow, namely a bridge phenomenon, to prevent the generation of the bridge phenomenon and capable of smoothly feeding the granular material with the screw body by giving vibration to the granular mateiral for stimulation with reciprocation of a moving member, in regard to the granular material feeding device proivded with a moving member inside a hopper body freely to move for reciprocation along the inner wall surface of the hopper body and prvoided with a reciprocating mechanism for moving the moving member for reciprocation. <P>SOLUTION: This granular material feeding device is formed of the hopper body 1 capable of housing the granular material W and the screw body 2 rotatably provided in the horizontal direction of a bottom part of the hopper body and capable of rotating to feed the granular material. The moving member 5 is provided inside the hopper freely to move for reciprocation along the inner wall surface of the hopper body, and the reciprocating mechanism 8 is provided to move the moving member for reciprocation. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a granular material feeding apparatus used for feeding various granular materials such as various drugs and chip materials.

Conventionally, as this kind of granular material feeding device, a structure comprising a hopper body that can store the granular material, and a screw body that is rotatably disposed at the bottom of the hopper body and that can rotate and transport the granular material Things are known.
Japanese Utility Model Publication No.59-35467

  However, in the case of these conventional structures, when the granular material in the hopper body is transferred by the rotation of the screw body, the phenomenon that the granular material stops above the screw body and the vicinity of the screw body becomes hollow, so-called bridge phenomenon occurs. As a result, the screw body may not be smoothly fed by the screw body.

  The present invention is intended to solve these disadvantages. Among the present inventions, the invention described in claim 1 is a hopper body that can store a granular material, and is freely rotatable at the bottom of the hopper body. And a reciprocating movement for moving the moving member in a reciprocating manner along the inner wall surface of the hopper body. It is in the granular material feeding apparatus characterized by providing a mechanism.

  According to a second aspect of the present invention, as the reciprocating mechanism, a rotary shaft is installed in the hopper body, a drive member is provided on the rotary shaft, and the movable member is engaged with and disengaged from the drive member. The invention is characterized in that a member is provided, and the invention according to claim 3 is characterized in that a stirring member capable of stirring the granular material in the hopper body is provided on the rotating shaft. The invention according to claim 4 is characterized in that a rotation conduction mechanism is provided between the rotary shaft and the screw body, and the invention according to claim 5 is provided. A spring mechanism capable of forcibly moving the moving member is provided.

  As described above, according to the present invention, the moving member is provided in the hopper body so as to be reciprocally movable along the inner wall surface of the hopper body, and the reciprocating mechanism for moving the moving member is provided. From the above, by applying vibration stimulation to the granular material by the reciprocating movement of the moving member, the phenomenon that the granular material stays above the screw body and the vicinity of the screw body becomes hollow, so-called bridging phenomenon is destroyed. Generation | occurrence | production can be blocked | prevented and feeding of a granular material can be smoothly performed with a screw body.

  According to a second aspect of the present invention, as the reciprocating mechanism, a rotating shaft is installed in the hopper body, a driving member is provided on the rotating shaft, and the moving member can be engaged with and released from the driving member. Since the engaging member is provided, the driving member is engaged with the engaging member in the middle of the rotation of the rotating shaft, the moving member is moved by this engagement, and the driving member is further engaged by the rotation of the rotating shaft. The moving member is moved back by the separation, and the moving member is reciprocated by repeating the rotation of the rotating shaft, so that the structure of the reciprocating mechanism can be simplified and the maintenance of the apparatus is maintained. And the manufacturing cost can be reduced. In the invention according to claim 3, the rotating shaft is provided with a stirring member capable of stirring the granular material in the hopper body. Therefore, it is granular by the stirring member. The powder body can be smoothly fed by the screw body, and in the invention according to claim 4, between the rotating shaft and the screw body. Since the rotation conduction mechanism is provided, the reciprocating mechanism can be driven by the drive source of the screw body, the structure can be further simplified, and in the invention according to claim 5, the movement is performed. Since the spring mechanism that can move the member forcibly is provided, the moving member can be forcibly moved by the spring mechanism, and the occurrence of bridging can be further prevented, and the powder body is fed by the screw body. Can be performed smoothly.

  1 to 7 show an embodiment of the present invention, FIGS. 1 to 6 show a first embodiment, and FIG. 7 shows a second embodiment.

  1 to 6 show a first embodiment, in which 1 is a hopper body, and in this case, it is formed in a funnel-shaped square pyramid shape having four side walls 1a. Then, a screw body 2 is rotatably provided at the bottom of the hopper body 1, and the screw body 2 includes a screw shaft 2 a and a screw blade 2 b, and the screw shaft 2 a of the screw body 2 is transferred by a motor 3 to a conduction mechanism 4. The granular material W is provided so as to be able to rotate and transfer by the rotation of the screw body 2.

  Reference numeral 5 denotes a moving member. In this case, the moving member 5 is formed in a plate shape, and is provided so as to be reciprocally movable up and down by a guide member 6 along an inner wall surface 1 b of a vertical side wall 1 a of the hopper body 1. A stopper material 7 capable of contacting the upper surface of the member 6 is provided, and a reciprocating mechanism 8 for moving the moving member 5 up and down is provided.

  In this case, as the reciprocating mechanism 8, a rotating shaft 9 is installed in the hopper body 1, an arm-like driving member 10 is projected from the rotating shaft 9, and the moving member 5 is engaged with and separated from the driving member 10. A possible engaging member 11 is provided, and a stirring member 12 capable of stirring the granular material W in the hopper body 1 is provided on the rotating shaft 9 so as to protrude between the rotating shaft 9 and the screw body 2. The rotational conduction mechanism 13 is provided.

  Since the first embodiment of the present embodiment is configured as described above, the granular material W is charged and stored in the hopper body 1, and the granular material W is rotated by the rotation of the screw body 2 that is rotatably disposed at the bottom of the hopper body 1. In this case, the movable member 5 is provided in the hopper body 1 so as to be reciprocally movable along the inner wall surface 1b of the hopper body 1, and the movable member 5 is moved. Since the reciprocating mechanism 8 that moves the moving member 5 is provided, the granular member W is retained above the screw body 2 by applying vibration stimulation to the granular body W by the reciprocating movement of the moving member 5. The phenomenon of the hollowing out of the vicinity, the so-called bridge phenomenon, can be destroyed and the occurrence of the bridge phenomenon can be prevented, and the powder body W can be smoothly fed by the screw body 2.

  In this case, since the moving member 5 reciprocates up and down, the moving member 5 pushes the granular material W toward the screw body 2, thereby further smoothly feeding the granular material W by the screw body 2. Can be done.

  In this case, as the reciprocating mechanism 8, a rotating shaft 9 is installed in the hopper body 1, a driving member 10 is provided on the rotating shaft 9, and the moving member 5 can be engaged with and released from the driving member 10. Since the joint member 11 is provided, as shown in FIGS. 5 and 6, the driving member 10 is engaged with the engaging member 11 during the rotation of the rotating shaft 9, and the moving member 5 is moved upward by this engagement, Further rotation of the rotating shaft 9 causes the drive member 10 to move away from the engaging member 11, and due to this separation, the moving member 5 descends and returns by its own weight until the stopper material 7 contacts the upper surface of the guide member 6. By repeating this up and down, the moving member 5 is reciprocated, so that the structure of the reciprocating mechanism 8 can be simplified, the maintenance and maintenance of the apparatus can be easily performed, and the manufacturing cost can be reduced. Can also be In this case, the rotating shaft 9 is provided with the stirring member 12 capable of stirring the granular material W in the hopper body 1, so that the granular material W can be stirred by the stirring member 12. 2 can smoothly feed the granular material W. In this case, since the rotation conduction mechanism 13 is provided between the rotary shaft 9 and the screw body 2, the screw body 2 is driven. The reciprocating mechanism 8 can be driven by the source, and the structure can be further simplified.

  The second embodiment shown in FIG. 7 shows another structure, in which a spring mechanism 14 capable of forcibly moving the moving member 5 downward is provided, that is, a spring hook pin 14a on the side wall 1a of the hopper body 1. And another spring hook pin 14b is protruded from the moving member 5, and a spring member 14c is hung between the spring hook pin 14a and the spring hook pin 14b. When the rotary shaft 9 is rotated in the reverse direction and the moving member 5 is pressed downward by the driving member 10, the moving member 5 can be configured as a spring mechanism 14 that can be forcibly moved upward. .

  In the second embodiment, the same effect as that of the first embodiment can be obtained, and in this case, the moving mechanism 5 can be forcibly moved downward. The moving member can be forcibly moved by the spring mechanism 14 in addition to the dead weight of 5, and the occurrence of the bridging phenomenon can be further prevented, and the powder body W can be smoothly fed by the screw body 2. Can do.

  Note that the present invention is not limited to the above embodiment, and the structures of the hopper body 1, screw body 2, moving member 5, reciprocating mechanism 8 and the like are appropriately designed and changed as appropriate.

  As described above, the intended purpose can be sufficiently achieved.

1 is an overall side sectional view of a first embodiment of the present invention. 1 is an overall plan sectional view of a first embodiment of the present invention. It is a fragmentary perspective view of the example of 1st Embodiment of this invention. 1 is an overall perspective view of a first embodiment of the present invention. It is a fragmentary sectional view of the example of the 1st embodiment of the present invention. It is a fragmentary sectional view of the example of the 1st embodiment of the present invention. It is a fragmentary sectional view of the 2nd example of an embodiment of the invention.

Explanation of symbols

W granular material 1 hopper body 2 screw body 5 moving member 8 reciprocating moving mechanism 10 driving member 11 engaging member 12 stirring member 13 rotation conduction mechanism 14 spring mechanism

Claims (5)

  A hopper body that can store the powdery granular material, and a screw body that is rotatably disposed at the bottom of the hopper body and is capable of rotating and transferring the powdery granular material. A moving member is placed in the hopper body. A granular material feeding apparatus comprising a reciprocating mechanism that is reciprocally movable along an inner wall surface and moves the moving member.   As the reciprocating mechanism, a rotating shaft is installed in the hopper body, a driving member is provided on the rotating shaft, and an engaging member capable of engaging with and disengaging from the driving member is provided on the moving member. The granular material feeding apparatus according to claim 1.   The granular material feeding apparatus according to claim 1 or 2, wherein a stirring member capable of stirring the granular material in the hopper is provided on the rotating shaft.   The granular material feeding device according to any one of claims 1 to 3, wherein a rotation conduction mechanism is provided between the rotating shaft and the screw body. The granular material feeding apparatus according to claim 1, wherein a spring mechanism capable of forcibly moving the moving member is provided.

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