JP2011201641A - Container discharge device and powder and granular material discharge method using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and surely open and close a discharge port in a container.SOLUTION: This container discharge device includes a freely openable-closable cone valve 3 arranged in the discharge port 21 of a bottom part of the container 2 for storing powder M, a shaft member 31 having one end connected to the cone valve 3, extending upward in the container 2 and vertically movably supported by a top surface part 24 of the container 2, a lock device 6 for fixing the shaft member 31, and a lifting device 4 for moving the container 2 in the vertical direction, and is constituted for fitting the cone valve 3 to the discharge port 21 by lifting the container 2 while fixing the shaft member 31 by the lock device 6.

Description

  The present invention relates to a container discharging apparatus for discharging powder particles in a container using a valve, and a method for discharging powder particles using the container discharging device.

  2. Description of the Related Art Conventionally, in a wide range of industrial fields, discharge devices for storing powder or the like (hereinafter referred to as “raw material”) in a container and filling the raw material into a container or the like from the container are known. Such a discharge device is provided with a mechanism for opening and closing the discharge port at the bottom of the container by installing a cone valve fixed to the lower end of the shaft member in the container and moving the shaft member in the vertical direction. (For example, refer to Patent Documents 1 and 2).

Patent Document 1 describes a structure in which a drive mechanism such as a drive motor is provided above a container, and a shaft fixed to the cone valve is moved up and down by this drive mechanism.
Patent Document 2 discloses an openable / closable valve body (cone valve) provided at a discharge port at the bottom of a container, one end connected to the valve body, extending upward in the container, and the other end projecting outward. A container discharging device comprising a shaft member and a valve opening / closing means provided separately from the container, wherein the valve opening / closing operation is performed by releasably grasping the other end of the shaft member by the valve opening / closing means. Is disclosed.

JP 2000-272679 A JP 2003-54758 A

  However, in the conventional container discharge device, a lower pipe (chute) is provided in the discharge port at the bottom of the container, and the material in the container may be discharged while the chute is filled with the raw material. When stopping the operation while discharging the raw material, it is necessary to close the valve once. And, in the case of a structure that opens and closes the valve by moving the cone valve up and down as in Patent Documents 1 and 2, the raw material remains in the container, and the raw material is also filled between the valve and the discharge port Therefore, there is a problem that the valve cannot be completely closed, and there is room for improvement in that respect.

  The present invention has been made in view of the above-described problems, and provides a container discharge device capable of easily and reliably opening and closing a discharge port by a valve in a container and a method of discharging a granular material using the container discharge device. The purpose is to do.

  In order to achieve the above object, in the container discharge device according to the present invention, an openable / closable valve provided at the discharge port at the bottom of the container that accommodates the granular material, and one end of the valve are connected to the container upward. The shaft member includes a shaft member that is extended and supported so as to be vertically movable with respect to the top surface portion of the container, a lock unit that fixes the shaft member, and a container lifting unit that moves the container in the vertical direction. In a state where the container is fixed, the container is raised and the valve is fitted to the discharge port.

  Moreover, in the discharge method of the granular material using the container discharge apparatus according to the present invention, an openable / closable valve provided at the discharge port at the bottom of the container for storing the granular material, and one end connected to the valve. A powder particle using a container discharging device comprising a shaft member extending upward in the interior and pivotally supported so as to be vertically movable with respect to the top surface portion of the container, and having a discharge port closed by a valve at the rising position of the container A body discharging method is characterized in that the granular material in the container is discharged from the discharge port by moving the container with the shaft member fixed.

In the present invention, the position of the valve in the vertical direction is fixed by fixing the shaft member connected to the valve with the locking means while the container is raised. Then, by raising the container by the container elevating means with the valve fixed, the discharge port comes close to the valve at the fixed position, and the valve is fitted to the discharge port at the raised position of the container. When closing the valve, considerable powder particles accompanying the rise of the container can be allowed to flow into the lower portion of the container outlet formed as the container rises, that is, the gap in the conduit. So, even if the powder is filled in the container and the powder is filled in the pipe such as a chute that communicates with the discharge port, the powder in the container is discharged. The outlet can be closed with a valve. In addition, by lowering the container from the raised position, the valve is separated from the discharge port, the discharge port is opened, and the granular material can be discharged.
Therefore, it is necessary to place a large force on the valve as compared with a discharge structure in which the valve is lowered as in the conventional case and the valve is pushed into the powder particles filling the container to close the discharge port. In addition, it is possible to prevent a problem that the discharge port is not sufficiently blocked.

  Moreover, in the container discharge device of the present invention, the valve can be smoothly opened and closed regardless of the remaining amount of powder in the container, so that the container is repeatedly moved up and down during discharge of the powder. By doing so, it is possible to change the interval formed between the discharge port and the valve to give movement to the granular material, and to promote the discharge of the granular material.

  In the container discharging apparatus according to the present invention, the container elevating means includes an elevating frame that supports the container from below, and a driving device that moves the elevating frame in the vertical direction. It is preferable to arrange | position.

  In the present invention, since the elevating frame and the drive device for moving the container in the vertical direction are not arranged above the container, it is possible to suppress the height of the entire container discharge device. The ceiling height of the building for housing the device can also be lowered.

  Moreover, in the discharge method of the granular material using the container discharge apparatus which concerns on this invention, you may make it discharge the granular material in a container from a discharge port by moving a container repeatedly to an up-down direction.

  In the present invention, by repeatedly moving the container up and down, it is possible to obtain an effect of peeling off and dropping the granular material attached to the valve.

  According to the container discharging apparatus and the powder discharging method using the container discharging device of the present invention, even if the container is filled with the powder by raising the container with the valve fixed, The valve can be fitted into the discharge port while discharging the granular material in the container. For this reason, it is not necessary to force the valve into the filled powder, so that the outlet can be opened and closed easily and reliably.

It is a partially broken side view which shows the structure of the discharge apparatus by embodiment of this invention. It is a partially broken side view which similarly shows the structure of a discharge device, Comprising: It is a figure which shows the state which raised the container. It is an enlarged view of the locking device shown in FIG. (A)-(c) is a figure which shows typically the preparation process of a discharge device. (A)-(c) is a figure which shows typically the discharge process of a discharge device.

  Hereinafter, a container discharging apparatus according to an embodiment of the present invention and a method for discharging a granular material using the container discharging apparatus will be described with reference to the drawings.

As shown in FIGS. 1 and 2, the container discharge device according to the present embodiment (hereinafter simply referred to as “discharge device 1”) continuously feeds powder M (powder) in the container 2 through a chute 5. In particular, it is employed in a manufacturing process for supplying a container (not shown).
The discharge device 1 includes the container 2 that stores the powder M, an openable / closable cone valve 3 (valve) provided in the discharge port 21 at the bottom of the container 2, and an elevating device 4 that moves the container 2 in the vertical direction. (Container lifting / lowering means).

The container 2 includes a cylindrical portion 22, a conical portion 23 that is gradually reduced in diameter from the cylindrical portion 22 toward the discharge port 21 that is disposed in the center of the container 2 in plan view, and a top surface portion 24 that covers the upper portion of the cylindrical portion 22. It consists of.
The discharge port 21 is a circular opening, and is configured such that the chute 5 is coupled to the lower outer side by appropriate connection means.
The top surface portion 24 includes an input port 25 for supplying the powder M into the container 2 and a bearing that supports a long shaft member 31 (described later) connected to the cone valve 3 so as to be movable in the vertical direction. The shaft support part 26 which becomes is provided.

  The cone valve 3 has a conical shape with the top portion positioned upward, and the lower outer peripheral edge portion 3b can be fitted into the discharge port 21 of the container 2 in a liquid-tight state. The lid portion 54 (see FIG. 4) of the chute 5 is attached and detached. The cone valve 3 is provided with a long shaft member 31 which is fixed to the upper end 3 c and extends upward on the central axis O <b> 1 of the container 2.

The shaft member 31 is supported by the shaft support portion 26 of the top surface portion 24 of the container 2 so as to be inserted in a vertically movable manner. A flange 32 is provided at the upper end of the shaft member 31 that protrudes outward from the container 2 and is fixed by a lock device 6 described later. The flange 32 has a disc shape and is provided coaxially with the shaft member 31.
Such a cone valve 3 is fitted to the discharge port 21 by closing the container 2 as the bottom portion (discharge port 21) moves in the direction in which the container 2 rises (direction of arrow Y2). The discharge port 21 is opened by moving in the direction in which the bottom part separates (arrow Y1 direction).

  Here, the locking device 6 (locking means) for fixing the cone valve 3 via the shaft member 31 is fixed to a predetermined frame-shaped frame material 8 as shown in FIG. ing. That is, as shown in FIG. 3, the lock device 6 has a device main body 61, a contact surface 62 that locks the flange 32 on the lower surface side of the device main body 61, and a state in which the lock device 6 is in contact with the contact surface 62. And a pair of locking members 63 (63A, 63B) for pressing and fixing the lower surface side of the flange 32.

  The locking members 63A and 63B extend in the radial direction from the rotating portion 631 provided on the apparatus main body 61 so as to be rotatable about the central axis O2 with the central axis O2 in the vertical direction, and the lower end of the rotating portion 631. It has a connecting piece 632 and a pressing pin 633 erected upward from the tip of the connecting piece 632. The upper end (pressing end 63a) of the pressing pin 633 is selectively within and out of the range of the lower surface 32a of the flange 32 locked by the contact surface 62 in plan view when the rotating portion 631 is rotated. It is a possible position.

  That is, the locking device 6 rotates the rotating portion 631 of the locking members 63A and 63B around the central axis O2 in a state where the flange 32 of the shaft member 31 connecting the cone valve 3 is in contact with the contact surface 62. Then, the pressing end 63a of the pressing pin 633 is moved to the lower surface 32a side of the flange 32, whereby the flange 32 is pressed and fixed from below by the pressing end 63a.

  Next, as shown in FIGS. 1 and 2, the lifting device 4 for moving the container 2 in the vertical direction includes a pair of shafts 41 (41 </ b> A) erected on the base 9 with the axial direction directed in the vertical direction. 41B), a motor 42 (driving device) that rotates one of the first shafts 41A, and a lifting frame 43 that is guided by the shafts 41A and 41B and moves up and down and supports the container 2. It is roughly structured.

The first shaft 41A on the one side (the left side in FIG. 1) is a ball screw that is supported on the center 9 so as to be rotatable about the central axis while being erected on the base 9, and a ball nut 44 is mounted on the screw shaft. Is configured to be screwed. A motor 42 for rotating the first shaft 41 </ b> A is disposed on the base 9 at a position on the side of the container 2.
The second shaft 41B on the other side (the right side in FIG. 1) is fixed in a non-rotating state with the base end standing on the base 9, and can move along the axial direction of the shaft. The slide ring 45 is provided.

The elevating frame 43 is a frame for supporting the container 2 from below via the support column 46, and is provided integrally with the ball nut 4 and the slide ring 45 described above, and moves in the vertical direction along the shaft 41. be able to. Here, in FIG. 2, the solid-line container 2 and the lifting frame 43 are in the raised position, and the two-dotted line lifting frame 43 is in the lowered position.
The elevating frame 43 includes a chute support 7 for supporting the chute 5 and fixing the upper end 5 a of the chute 5 to the discharge port 21 of the container 2.

  Here, the chute 5 includes a fixed chute 51 fixed to the base 9, a telescopic tube 52 attached to the upper end edge of the fixed chute 51, and an internal chute 53 disposed inside the telescopic tube 52. It has a configuration with. The discharge end (not shown) located at the lower end of the fixed chute 51 is extended to the position of the mouth of the container for supplying the powder M, for example. The upper end 5a of the chute 5 can be attached to and detached from the discharge port 21 of the container 2 by a joining means such as bolt joining.

The telescopic tube 52 is made of, for example, a bellows-like member that can be vertically expanded or contracted, or a member made of cloth, rubber, or the like. It expands and contracts accordingly.
The upper end of the internal chute 53 is fixed to the upper end of the telescopic tube 52, and the lower end 53 a has an outer diameter dimension that allows the inner chute 53 to enter the fixed chute 51 according to the expansion and contraction of the telescopic tube 52.

  In such a chute 5, the powder M discharged from the discharge port 21 can pass through the internal chute 53 and the fixed chute 51 in this order and be discharged to a container (not shown) or the like. The telescopic tube 52 also has a cover function for preventing the powder M from splashing outward between the internal chute 53 and the fixed chute 51.

The chute support portion 7 is provided integrally with the elevating frame 43 and includes a cylinder 71 extending upward. When the cylinder 71 is extended (the state shown in FIG. 1), the upper end 5a of the chute 5 is fixed by the fixing portion 72 at the upper end of the cylinder. Can be fixed by appropriate fixing means. In FIG. 2, the cylinder 71 is in a contracted state, and the discharge port 21 and the upper end 5 a of the chute 5 are separated from each other.
In the chute 5 fixed by the chute support portion 7 as described above, the upper end 5a moves in the vertical direction together with the lifting frame 43, so that it expands and contracts according to the distance from the fixed chute 51 fixed to the base 9. The tube 52 will expand and contract.

  Next, the discharge method of the powder M using the discharge device 1 having the above-described configuration and the operation of the discharge device 1 will be described with reference to the drawings. 4 and 5 are partly simplified for the sake of clarity.

First, as shown in FIGS. 4A to 4C, a preparation process for the container 2 for discharging the powder M is performed.
Specifically, as shown in FIG. 4 (a), the container 2 is set on a lifting frame 43 of the lifting device 4 via a column 46, and a chute is placed on the lifting frame 43 via a chute support 7. 5 is attached. At this time, the cone valve 3 is fitted to the discharge port 21 and the discharge port 21 is closed. The position of the elevating frame 43 is a lowered position. In this state, the upper end 5a of the chute 5 and the discharge port 21 are arranged with an interval. A lid 54 is fitted in the upper opening of the internal chute 53 of the chute 5 in a detachable state.

  Subsequently, as shown in FIG. 4B, by extending the cylinder 71 of the chute support portion 7, the upper end 5a of the chute is moved upward and brought into contact with the discharge port 21, for example, an appropriate bolt tightening or the like. The discharge port 21 and the chute 5 are connected by the connecting means. At this time, the upper surface of the lid member 54 and the lower surface 3a of the cone valve 3 are connected to each other by, for example, a suction means. In addition, this lid part 54 will be in the state connected with the cone valve 3 by adsorption | suction etc. at the time of the opening / closing operation | movement of the cone valve 3 of the following processes.

Next, as shown in FIG. 4C, when the motor 42 is driven to rotate the first shaft 41A made of a ball screw, the ball nut 44 screwed to the first shaft 41A is screwed in accordance with the shaft rotation amount. It moves upward (in the direction of arrow Y2) along the axial direction (vertical direction), and the lifting frame 43 provided integrally with the ball nut 44 rises together with the container 2 (see FIG. 2). At this time, the slide ring 45 on the second shaft 41B side is guided along the second shaft 41B and slides upward as the lifting frame 43 moves.
When the container 2 is raised, the upper end 5a of the chute fixed to the elevating frame 43 by the fixing part 72 via the chute support part 7 also moves upward at the same time, so that the telescopic tube 52 extends upward. . Therefore, the chute upper end 5 a and the discharge port 21 are not separated by the fixing portion 72 and are maintained in a connected state.

Then, when the container 2 is raised to a predetermined position, the cone valve 3 is fixed by the lock device 6. That is, as shown in FIG. 3, when the flange 32 at the upper end of the shaft member 31 is locked to the contact surface 62 of the locking device 6, each of the pair of locking members 63 </ b> A and 63 </ b> B is rotated by the rotating portion 631. The pressing pin 633 is positioned so as to be on the lower surface 32 a side of the flange 32. Accordingly, the lower surface 32a of the flange 32 is pressed from below by the pair of pressing ends 63a, and the vertical position of the cone valve 3 is fixed together with the shaft member 31.
The process so far is a preparation process before the discharging process of the powder M.

Next, as shown in FIGS. 5A to 5C, with the cone valve 3 fixed by the locking device 6, the container 2 is fixed at a position where it is lowered to a predetermined position, or the container 2 is moved vertically. The powder M is discharged from the discharge port 21 to the chute 5 side while being repeatedly moved.
Specifically, as shown in FIG. 5 (a), the vertical position of the cone valve 3 is fixed by the lock device 6, so that the container 2 is lowered by driving the lifting device 4 and is in the fixed position. By moving the cone valve 3 away from the bottom (in the direction of arrow Y1), the discharge port 21 is opened, and the powder M in the container 2 is discharged from the discharge port 21 to the chute 5 side.

  In this way, in the carry-out device 1, the container 2 is lifted by the lifting device 4 while the cone valve 3 is fixed, so that the discharge port 21 is close to the cone valve 3 at the fixed position, and the container 2 is lifted. The cone valve 3 is fitted into the discharge port 21 at the position. When the cone valve 3 is closed, as shown in FIGS. 5 (b) and 5 (c), a considerable amount of powder M accompanying the rise of the container 2 is converted into the container 2 formed as the container 2 is raised. Since the container 2 is filled with the powder M and communicates with the discharge port 21, the tube of the chute 5 is filled with the powder M. Even when the powder M is filled inside the passage, the discharge port 21 can be closed with a valve while discharging the powder M in the container 2.

  Therefore, as compared with the discharge structure in which the cone valve is lowered as in the prior art and the cone valve is pushed into the powder filled in the container to close the discharge port, a large force is applied to the cone valve 3. In addition to eliminating the need for burdening, it is possible to prevent problems such as the discharge port 21 not being sufficiently blocked.

Further, since the cone valve 3 can be smoothly opened and closed regardless of the remaining amount of the powder M in the container 2, the container 2 is repeatedly moved up and down during the discharge of the powder M as described above. By doing so, it is possible to change the distance formed between the discharge port 21 and the cone valve 3 to make the powder M move, and to promote the discharge of the powder M.
Further, by repeatedly moving the container 2 up and down, the effect of peeling off and dropping the powder M adhering to the cone valve 3 can be obtained.

  Further, in the discharge device 1, the motor 42 of the lifting device 4 is disposed on the side of the container 2, so that the lifting frame 43 and the motor 42 for moving the container 2 in the vertical direction are located above the container 2. Since it is not arranged, the height of the entire discharge device 1 can be suppressed, and there is an advantage that the height of the ceiling of the building for housing the discharge device 1 can be reduced.

  As described above, in the container discharging apparatus and the powder particle discharging method using the container discharging device according to the embodiment, the container 2 is raised while the cone valve 3 is fixed, so that the powder M is filled in the container 2. Even in this state, the cone valve 3 can be fitted to the discharge port 21 while discharging the powder M in the container 2. Therefore, it is not necessary to force the cone valve 3 into the filled powder M, so that the discharge port 21 can be opened and closed easily and reliably.

As mentioned above, although embodiment of the container discharge apparatus by this invention and the discharge method of the granular material using this was described, this invention is not limited to said embodiment, The range which does not deviate from the meaning It can be changed as appropriate.
For example, in the present embodiment, the container lifting / lowering means includes a lifting / lowering frame 43 that moves in the vertical direction along the shaft 41 and employs a ball screw mechanism. However, the present invention is limited to such a form. For example, other lifting means such as a configuration in which the lifting frame 43 is lifted and lowered using a hydraulic jack may be used.

  Further, in the present embodiment, the cone valve 3 is adopted. However, the present invention is not limited to this, and a valve having a shape other than the conical shape may be applied. The point is that the valve connected to the shaft member 31 may be fitted to the discharge port 21.

Further, the locking means is not limited to the configuration of the present embodiment. Therefore, the flange 32 provided for fixing the shaft member 31 can also be changed to an appropriate structure according to the form of the locking means. The point is that the upper end portion of the shaft member 31 may be fixed from the outside of the container 2.
The mounting position of the locking device 6 according to the present embodiment does not need to be the frame member 8 and only needs to be able to fix the locking device 6, so that the locking device 6 can be fixed on the ceiling or the ceiling portion of the building where the discharging device 1 is installed. There are no particular restrictions on the substrate.

In addition, the configuration of the position, shape, size, and the like of the container 2 and the chute 5 and the vertical movement dimension (lifting height) of the container 2 are the conditions such as the material of the granular material, the discharge amount, the shape of the valve, etc. It is possible to set arbitrarily according to the conditions in the manufacturing process in which the granules are packed in a container or the like.
In addition, it is possible to appropriately replace the components in the above-described embodiments with known components without departing from the spirit of the present invention.

1 Discharge device (container discharge device)
2 Container 3 Cone valve (valve)
3a Lower surface 4 Elevating device (container elevating means)
5 Chute 5a Upper end 6 Locking device (locking means)
7 Chute support portion 21 Discharge port 31 Shaft member 32 Flange 32a Lower surface 42 Motor (drive device)
43 Elevating frame 52 Telescopic tube M Powder (powder)

Claims (4)

An openable and closable valve provided at the discharge port at the bottom of the container for storing the powder,
A shaft member connected at one end to the valve and extending upward in the container and supported so as to be vertically movable with respect to the top surface of the container;
Locking means for fixing the shaft member;
Container elevating means for moving the container in the vertical direction;
With
A container discharging apparatus characterized in that the valve is fitted to the discharge port by raising the container with the shaft member fixed by the locking means. The container elevating means comprises an elevating frame that supports the container from below, and a drive device that moves the elevating frame in the vertical direction,
The container discharging apparatus according to claim 1, wherein the driving device is disposed on a side or under the container. An openable / closable valve provided at a discharge port at the bottom of the container for storing the powder particles, and one end connected to the valve extends upward in the container and is vertically movable with respect to the top surface of the container. A method of discharging a granular material using a container discharge device having a configuration in which the discharge port is closed by the valve at the rising position of the container,
A method for discharging a granular material using a container discharge device, wherein the granular material in the container is discharged from the discharge port by moving the container with the shaft member fixed. . The method for discharging a granular material using a container discharging apparatus according to claim 3, wherein the granular material in the container is discharged from the discharge port by repeatedly moving the container in the vertical direction.

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