JP4155957B2 - Powder and granular material feeding device - Google Patents

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 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. The moving member is provided in the hopper body so as to be reciprocated up and down along the inner wall surface of the hopper body, and the moving member is moved up and down . Ri Na provided reciprocating mechanism for, as the reciprocating mechanism, bridged the rotary shaft to the hopper body is provided with a drive member to said rotary shaft, the drive in accordance with the rotation of the drive member to the mobile member An engaging member capable of engaging and disengaging is provided on the member, and a stirring member capable of stirring the powdery granular material in the hopper is provided on the rotating shaft .

The invention according to claim 2 is characterized in that the moving member rises when engaged with the driving member and descends due to the weight of the moving member when separated from the driving member. Further, the invention according to claim 3 is configured such that the moving member rises when engaged with the drive member and is forcedly lowered by a spring mechanism when separated from the drive member. The invention according to claim 4 is characterized in that a rotation conduction mechanism is provided between the rotating shaft and the screw body.

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 can be prevented, the powder body can be smoothly fed by the screw body, as the reciprocating mechanism, a rotating shaft is installed in the hopper body, a driving member is provided on the rotating shaft, Since the moving member is provided with an engaging member that can be engaged with and released from the driving member as the driving member rotates, and the rotating shaft is provided with an agitating member that can agitate the granular material in the hopper body . Times The driving member engages with the engaging member during the rotation of the shaft, and the moving member moves by this engagement, and the driving member moves away from the engaging member by further rotation of the rotating shaft. The moving member moves back and forth by rotating back and rotating the rotating shaft, the structure of the reciprocating mechanism can be simplified, the maintenance and maintenance of the apparatus can be easily performed, and the production cost Can be reduced, the granular material can be stirred by the stirring member, and the powder body can be smoothly fed by the screw body.

According to a second aspect of the present invention, the moving member rises when engaged with the driving member and descends due to the weight of the moving member when separated from the driving member. The structure of the moving mechanism can be simplified, and in the invention according to claim 3, the moving member rises when engaged with the driving member and is separated by a spring mechanism when separated from the driving member. Since the structure is forcibly lowered, the moving member can be forcibly moved by a spring mechanism, and the occurrence of a bridging phenomenon can be further prevented, and the powder body can be smoothly fed by the screw body. It can be carried out, also, in the fourth aspect of the present invention, since formed by providing the rotation transfer mechanism between the rotating shaft and the screw body, reciprocating mechanism by a driving source of the screw body Can be driven, it is possible to simplify the layer structure.

  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. 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 that the vicinity is hollowed out, that is, 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 implementation of the invention.

Explanation of symbols

W granular material 1 hopper body 2 screw body 5 moving member 8 reciprocating mechanism
9 Rotating shaft 10 Driving member 11 Engaging member 12 Stirring member 13 Rotation conduction mechanism 14 Spring mechanism

Claims (4)

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. provided freely vertically reciprocated along the inner wall surface, said moving member Ri the name provided reciprocating mechanism for moving up and down, as the reciprocating mechanism, bridged the rotary shaft to the hopper body, in the rotary shaft A driving member is provided, an engaging member that can be engaged with and disengaged from the driving member as the driving member rotates is provided on the moving member, and an agitating member that can stir the granular material in the hopper body on the rotating shaft. A powder and granular material feeding device characterized by being provided . 2. The granular material feeding apparatus according to claim 1, wherein the moving member has a structure that rises when engaged with the drive member and descends due to its own weight when separated from the drive member. . 2. The granular material feeding system according to claim 1, wherein the moving member is configured to rise when engaged with the driving member and to forcibly descend by a spring mechanism when separated from the driving member. apparatus.   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.

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