JP6607996B2 - Powder supply device - Google Patents

Description

  The present invention relates to a granular material supply device for transferring a granular material from an input-side granular material container to a receiving-side granular material container.

  As such a granular material supply device, for example, in Patent Documents 1 and 2, the inlet of the input side granular material container and the inlet of the reception side granular material container are connected by a hopper or a chute. It describes what transports the body. However, in the case where the inlet and the receiving port are connected via such a hopper or chute, it is necessary to wash the hopper or chute when the type of the granular material is changed, and the washing is insufficient. The different granular material before the change may be mixed with the granular material of the receiving-side granular container after the change, and so-called contamination may occur.

  Therefore, in Patent Document 3, the input side granular container is connected directly to the receiving side granular container without using such a hopper or chute, and the input side granular container is connected. There has been proposed a method in which a granular material held in a container is transferred to a receiving-side granular material container. Moreover, in this patent document 3, measuring the transfer weight of the granular material to a receiving-side granular material container with measuring instruments, such as a load cell which measures the weight of a receiving-side granular material container, It also describes that dust is collected by attaching a dust collecting device to a dust collection port provided at the upper part of the receiving-side powder container and exhausting the receiving-side powder container at the time of charging.

Japanese Patent Laid-Open No. 6-135489 JP 11-348902 A JP 2006-096353 A

  However, in the granular material supply apparatus described in Patent Document 3, the granular material is obtained by directly connecting the charging port of the charging side granular material container to the receiving port of the receiving side granular material container as described above. Since it is to be transferred, the weight of the input side granular container may act on the measuring instrument, and there is a risk that a weight larger than the weight of the granular material transferred to the receiving side granular container may be measured. . For this reason, it becomes impossible to accurately measure the weight of the transferred granular material, and there is a possibility that less granular material than the weight measured by the measuring instrument may be transferred to the receiving-side granular material container. .

  The present invention has been made under such a background, and it is possible to eliminate the need for cleaning of a hopper, a chute, etc., and to mix different granular materials into the receiving-side granular material container due to insufficient cleaning. Needless to say, it is an object of the present invention to provide an apparatus for supplying a granular material capable of accurately measuring the weight of the granular material transferred to the receiving-side granular material container.

In order to solve the above-described problems and achieve such an object, the present invention provides a container main body for holding powder particles and a cylindrical input provided in the lower end portion of the container main body and extending in the vertical direction. An input side powder container and a reception side powder particle each provided with an opening, an opening / closing valve that opens and closes the input port, and a cylindrical receiving portion that is provided in the upper part of the container body and extends in the vertical direction. A powder container supply device, wherein the input port portion of the input-side powder container overlaps the receiving portion of the reception-side particle container in the vertical direction and has an inner and outer periphery Inserted at intervals in the direction, the input side powder container and the receiving side powder container are communicated in a non-contact manner, and the outer periphery of the input port portion of the input side powder container A slot on the inlet side that protrudes to the outer periphery is provided. In addition, the outer periphery of the receiving portion of the receiving-side powder container is provided with a receiving-side flange that protrudes to the outer peripheral side. In the state where the charging port part of the side powder container is inserted into the receiving port part of the receiving side powder container and the input side powder container and the receiving side powder container communicate with each other, It is characterized in that they are opposed to each other with an interval smaller in the vertical direction than the interval in the inner and outer peripheral directions between the input port portion of the input side granular material container and the reception port portion of the reception side granular material container .

  In the powder supply apparatus configured as described above, the input port portion of the input-side powder container and the reception port portion of the reception-side powder container are hoppers as in the supply device described in Patent Document 3. Therefore, there is no need to clean these hoppers and chutes, and there is no mixing of different granular materials into the receiving-side granular container due to insufficient cleaning.

  Further, in the supply device having the above-described configuration, the inlet port portion of the input-side granular material container overlaps in the vertical direction and in the inner and outer peripheral directions in the receiving-side portion of the receiving-side granular material container when the granular material is charged. Are inserted at intervals, and the input-side powder container and the receiving-side powder container are communicated in a non-contact manner. Therefore, to measure the weight of the granular material transferred to the receiving-side granular container, even if the granular material is transferred while measuring the weight of the receiving-side granular container with a measuring device, The weight of the side granule container does not act on the receiving side granule container, and the weight of the transferred granule is accurately measured to transfer an appropriate amount of the granule to the receiving side granule container. It becomes possible.

  The weighing device may measure the weight of the granular material transferred to the receiving-side granular container by measuring the weight of the charging-side granular container. It is possible to prevent the weight of the granular container from being lightly measured by contact with the receiving-side granular container and to accurately measure the weight of the transferred granular body.

  Here, the insertion length in the up-down direction of the receiving-side powder container of the receiving-side powder container is shorter than the vertical length of the receiving-portion part. It is desirable. When this insertion length is equal to or greater than the length in the vertical direction of the receiving part, when receiving a different type of granular material in the receiving-side granular container, the charging-side granular material to be charged later When the granular material that was previously charged and held in the receiving-side granular container rises and adheres to the container inlet, or when the charging-side granular container or the receiving-side granular container tilts May cause contact between the inlet port of the input side granular container and the inlet portion of the reception side granular container.

  More specifically, it is desirable that the overlapping length in the vertical direction of the charging port portion of the charging side powder container to the receiving port portion of the receiving side powder particle container is in the range of 10 mm to 50 mm. . If this overlap length is longer than the above range, the powder particles previously introduced may adhere to the input port of the input particle container to which the powder particles will be input later, or the input side powder particles There is a risk that the inlet portion of the body container may come into contact with the inlet portion of the receiving-side granular container, and if this overlap length is shorter than the above range, There is a possibility that the granular material leaks from a portion spaced in the inner and outer peripheral directions from the receiving port portion of the receiving-side granular material container.

  In addition, the receiving-side powder container is provided with a dust collection port portion, and exhausting the receiving-side powder container from the dust-collecting port portion, as described above, Even if the inlet is inserted into the receiving part of the receiving-side powder container at intervals in the inner and outer circumferential directions, it is possible to reliably prevent the powder from leaking out from the spaced-apart portion. Can do.

  On the other hand, in the granular material supply apparatus described in Patent Document 3, the input side granular material container has a leg portion supporting the container body separated into an upper support base and a lower support base when the granular material is charged. The container main body and the upper support base are moved, the container main body and the upper support base are returned to their original positions after the powder is charged, and the upper support base is connected to the lower support base, thereby the container main body. Has been to support. For this reason, it takes time for separation and connection work, and means for moving the input side powder container at the time of inputting the powder is also limited to limited means such as a suspended crane conveyor. End up.

  Therefore, when the input side powder container is provided with a leg portion that is integrally provided in the container body and supports the container body, the lower end of the input port portion of the input side powder container is In addition, it is desirable that it is located above the lower surface of the leg portion of the charging side powder container, and as a result, the powder device is charged or after being charged as in the supply apparatus described in Patent Document 3. There is no need to separate and connect the upper support base and the lower support base, and the moving means of the input side powder container is not limited.

Moreover, in order to prevent leakage of the granular material from the portion spaced in the inner and outer peripheral directions between the charging port and the receiving port as described above , in the present invention, the charging port of the charging-side powder container In addition to providing an inlet-side flange that projects to the outer peripheral side on the outer periphery of the part, an inlet-side flange that projects to the outer peripheral side is provided on the outer periphery of the inlet part of the receiving-side powder container. The charging side and the receiving side flange are connected to the charging side in a state where the charging port of the charging side granular container is inserted and communicated with the receiving port of the receiving side granular container. It arrange | positions so that the space | interval of the inner-periphery direction of the said inlet part of a granular material container and the said inlet part of the said receiving-side granular material container may oppose with a small space | interval in the up-down direction .

  In this way, the inlet side flange and the inlet side flange are arranged in a vertical direction above the inner and outer circumferential distance between the inlet port of the input side powder container and the inlet part of the input side powder container. By facing each other with a small gap, a dust collector is attached to the dust collection port of the receiving-side granular container, and the inside of the receiving-side granular container is evacuated, especially when the granular material is charged as described above. When collecting dust, it is taken into the receiving-side granular container by dust collection from a small gap between the inlet-side flange of the inlet port and the inlet-side flange of the inlet port. The air flow rate can be increased. For this reason, a granular material leaks from the part which left the space | interval of the inner-periphery direction of an inlet part and a receiving port part, and the part which opened the space | interval of the up-down direction of an inlet side hook part and an inlet side hook part Can be prevented more reliably.

  In addition, when the inlet side hook and the inlet side hook are provided in this way, the vertical distance between the inlet side hook and the inlet side hook is specifically 5 mm to 10 mm. It is desirable to be within the range. If this interval is larger than the above range, the powder may leak out from the receiving part of the receiving side powder container even if dust is collected. There is a risk that the side collar and the receiving side collar may come into contact with each other.

  As described above, according to the present invention, it is not necessary to clean the hopper, chute, etc., and it is possible to prevent different granular materials from being mixed into the receiving-side granular container when the cleaning is insufficient. In addition, it is possible to accurately measure the weight of the granular material transferred to the receiving-side granular material container.

It is sectional drawing of the granular material container connected in one Embodiment of the supply apparatus of the granular material of this invention. In one Embodiment of the supply apparatus of the granular material of this invention, it is sectional drawing which shows the state which carried in the input side granular material container and the receiving side granular material container on the mount frame. In one embodiment of the granular material supply apparatus of the present invention, the opening and closing valve of the input side granular material container is chucked by the valve opening and closing apparatus from the state shown in FIG. It is sectional drawing which shows the state which removed the cover body of the dust collection port part. In one embodiment of the granular material supply apparatus of the present invention, the receiving-side granular material container is raised from the state shown in FIG. It is sectional drawing which shows the state which opens the opening-and-closing valve of a container and throws in a granular material. It is an expanded sectional view of the E section in FIG. 4 (however, illustration of the gantry (mounting table) is omitted). FIG. 5 is a view showing a state in which the introduction of the granular material is completed from the state shown in FIG. 4 and the on-off valve of the charging-side granular material container is closed in the embodiment of the granular material supply device of the present invention. FIG. 7 is a cross-sectional view showing a state where the receiving-side granular container is lowered from the state shown in FIG. 6 in one embodiment of the granular material supplying apparatus of the present invention. FIG. 8 is a cross-sectional view showing a state in which a lid is attached to the receiving port part and the dust collecting port part of the receiving-side powder container from the state shown in FIG. 7 in one embodiment of the granular material supply apparatus of the present invention. .

  1 to 8 show an embodiment of the present invention. The powder container in the powder supply apparatus of the present embodiment is formed of a metal material such as steel, and is provided integrally with the container main body 1 that holds the powder P inside, and the container main body 1. A leg 2 for supporting the container body 1, a cylindrical inlet 3 provided at the lower end of the container body 1, extending in the vertical direction, an opening / closing valve 4 for opening and closing the inlet 3, and the container body 1 is provided with a cylindrical receiving portion 5 provided in the upper part of 1 and extending in the vertical direction. In addition, a granular material container can also be formed with a resin material other than a metal material, for example.

  As shown in FIG. 1, the container body 1 has an upper portion 1 a formed in a square cylinder shape or a cylindrical shape such as a square section with a center line O extending in the vertical direction as a center, and a lower portion 1 b of the container body 1. Is centered on the center line O, which gradually decreases in diameter as it goes downward from the lower edge of the upper part 1a. When the upper part 1a is a square cylinder, it has a rectangular pyramid shape such as a square cross section, and the upper part 1a is cylindrical. Is conical and formed integrally with the upper part 1a. In addition, the upper end part of the upper part 1a is covered with the ceiling part 1c.

  The insertion port 3 is formed in a cylindrical shape centered on the center line O that is provided integrally with the lower end of the lower portion 1 b of the container body 1 and opens into the container body 1. The outer periphery of the inlet port 3 is provided with an inlet-side flange 3a that has a circular plate shape perpendicular to the center line O and projects to the outer peripheral side. In the embodiment, it is formed at a substantially central portion in the up-down direction of the insertion port portion 3.

  Further, the opening / closing valve 4 is a cone-shaped valve having a lower portion in a cylindrical shape that can be fitted into the charging port portion 3 and a conical shape in which the upper portion is reduced in diameter toward the upper side. The valve body 4 is attached to the lower end portion of the valve rod 4a, which is inserted from the ceiling portion 1c of the container body 1 along the center line O so as to be movable up and down, and with the valve rod 4a at a constant stroke in the direction of the center line O. It can be moved up and down.

  The opening / closing valve 4 has a cylindrical lower portion fitted into the inlet 3 at the stroke end to the lower side of the vertical movement, and seals the inside of the container body 1 and is thrown at the stroke end upward. The granular material P held in the container main body 1 can be discharged from the inlet 3 with a space between the mouth 3. Further, the upper end portion of the valve rod 4a protrudes upward from the ceiling portion 1c of the container body 1, and a valve opening / closing handle 4b is attached to the upper end portion. The open / close valve 4 may be a butterfly valve, for example, in addition to the cone-type valve as in the present embodiment.

  Furthermore, the receiving portion 5 extends upward from a center line C parallel to the center line O at a position eccentric from the center line O in the ceiling portion 1 c of the container body 1. It is formed in an open cylindrical shape. In addition, on the outer periphery of the receiving port portion 5, there is a receiving side flange portion 5 a that forms an annular plate shape perpendicular to the center lines O and C and projects to the outer peripheral side. It is formed in the upper end part so that it may become an outer diameter smaller than the said insertion port side collar part 3a.

  Moreover, in the ceiling part of the container main body 1, for example, on the opposite side of the container main body 1 with the center line O across the center line O, in the present embodiment, the height of the upward protrusion with a smaller diameter than the reception inlet 5. In addition, a dust collecting port portion 6 having a low cylindrical shape and opening in the container body 1 is provided. Note that the upper opening portions of the receiving port portion 5 and the dust collection port portion 6 are covered with the lid bodies 7a and 7b in a state where the granular material is not transferred.

  Further, the leg portion 2 includes four struts 2a disposed at equal intervals in the circumferential direction extending downward from the upper end portion of the lower portion of the container main body 1 in parallel to the center line O of the container main body 1, and the struts. 2a, and a seating portion 2b having a square frame shape such as a square when viewed from the direction of the center line O. In this embodiment, at least in the charging side powder container A described below, the lower end of the charging port 3 is the lower surface of the leg 2 of the charging side powder container A, that is, the seating part 2b. It is located above the lower surface.

  In this embodiment, such an input side granular container A and an input side granular container B to which the granular material P input from the input side granular container A is received and transferred are shown in FIG. On the two-story rectangular frame-shaped gantry 11 as shown in FIG. 2 to FIG. 8, the input-side powder container A is positioned above and the receiving-side powder container B is positioned below this. It is arranged as follows.

  In addition, if the input side granular material container A and the receiving side granular material container B which are arrange | positioned at the upper and lower sides of the mount frame 11 are provided with the structure of the granular material container mentioned above, they are the same shape and the same size. It may be different, or may be different in shape, size, capacity, and the like. In this embodiment, the length of the upper part 1a in the direction of the center line O of the container main body 1 of the receiving-side granular container B is made longer than the charging-side granular container A, and the receiving-side granular container B Is larger than the input side powder container A.

  In the gantry 11, on the lower stage where the receiving-side powder container B is disposed, an elevating device 12 such as a lifter that moves the receiving-side powder container B up and down in the direction of the center line O is mounted on the gantry 11. Is disposed on the bottom surface. A weighing device 13 having a weight measuring means such as a load cell is disposed on the upper surface of the lifting platform above the lifting device 12, and the receiving side powder container B is placed on the weighing device 13. Then, the weight (mass) of the granular material P received in the container main body 1 of the receiving-side granular material container B is measured by the measuring device 13.

  Furthermore, on the upper part of the lower stage of the gantry 11 is an inlet part lid body attaching / detaching device which automatically removes and holds the lid body 7a which closes the inlet part 5 of the receiving side powder container B and automatically attaches it. 14a and the dust collector port lid attaching / detaching device 14b that automatically removes and holds the lid member 7b that closes the dust collector port portion 6 and automatically attaches the lid member 7b. The receiving side granular container B placed on the weighing device 13 is disposed at a position close to the receiving port 5 and the dust collection port 6.

  On the other hand, at the upper stage of the gantry 11 on which the input side powder container A is disposed, the receiving port part 5 of the reception side powder container B placed on the weighing device 13 of the lifting device 12 in the lowered state. A horizontal mounting table 15 is laid with a space in the vertical direction from the upper end of the loading table, and the charging side powder container A is brought into close contact with the lower surface of the seating portion 2b of the leg 2 on the upper surface of the mounting table 15. Placed. As shown in FIG. 2, the input side granular container A placed in this manner has the center line O of the container main body 1 as the center line C of the receiving portion 5 of the receiving side granular container B. It is arrange | positioned so that it may become coaxial.

  The mounting table 15 has a receiving port portion 5 and a dust collecting port portion 6 directly above the receiving port portion 5 and the dust collecting port portion 6 of the receiving side powder container B disposed in the lower stage of the gantry 11. Holes 15a and 15b are formed in such a size that can be inserted. Among these, a dust collecting pipe 16 connected to a dust collecting device (not shown) extends upward and opens downward above the hole 15 b immediately above the dust collecting port 6, and a lower end of the dust collecting pipe 16. Is provided with a conical dust collection hood 16a that gradually increases in diameter as it goes downward, and is disposed in the hole 15b. The inner periphery of the lower end of the dust collection hood 16a is the receiving-side powder container. It is set as the magnitude | size which can accommodate the outer peripheral part of the upper end of the dust collection port part 6 of B. Moreover, if the mounting table 15 is provided with a frame that supports the legs 2 of the charging-side granular material container A, the center of the mounting table 15 can be made hollow.

  Furthermore, the handle 4b attached to the upper end of the valve rod 4a of the charging side powder container A thus arranged is chucked at the uppermost upper part of the gantry 11 and moved up and down together with the open / close valve 4. Thus, a valve opening / closing device 17 that opens and closes the inlet 3 by the opening / closing valve 4 is provided. Here, the degree of opening / closing of the inlet 3 by the operation of the opening / closing valve 4 of the valve opening / closing device 17 is determined by the container of the receiving side powder container B measured by the measuring device 13 by a control means such as a computer (not shown). It is controlled based on the weight (mass) of the granular material P in the main body 1.

  Further, the outer diameter (diameter) of the inlet 3 of the input side granular container A is made smaller than the inner diameter (diameter) of the inlet 5 of the receiving side granular container B, thereby As shown in FIG. 5, the inlet 3 of the input side granular container A overlaps with the upper and lower sides in the receiving port 5 of the receiving side granular container B, and the inlet 3 and the inlet 5 Insertion is possible at intervals in the inner and outer peripheral directions, that is, the input side powder container A and the reception side powder container B can be communicated in a non-contact manner.

  Furthermore, in this embodiment, as shown in FIG. 5 as well, the length of the inlet side 3 from the lower end of the lower part 1b of the container body 1 of the input side powder container A to the lower side is the receiving side powder granules. The length of the body container B is shorter than the length of the receiving portion 5 from the ceiling portion 1c of the container main body 1 to the upper side, so that the insertion length of the insertion port portion 3 into the receiving portion 5 is received. It is made shorter than the length of the inlet part 5 in the vertical direction, that is, the lower end of the inlet part 3 does not pass through the inlet part 5 and protrude into the container main body 1 of the receiving-side powder container B.

  In the supply device of the granular material which communicates the input side granular material container A and the reception side granular material container B configured in this manner in a non-contact manner, the input side granular material container A and the reception side granular material In order to transfer the powder P from the input side powder container A to the reception side powder container B through the container B, first, as shown in FIG. In FIG. 2, the receiving-side powder container B is placed on the weighing device 13 of the lifting platform, and the loading-side powder container A is placed on the placing table 15 of the gantry 11, and the loading-side powder container A as described above. The center line O of the container main body 1 is placed so as to be arranged coaxially with the center line C of the receiving port portion 5 of the receiving-side granular container B.

  Next, as shown in FIG. 3, the receiving-side powder particles placed on the lower stage of the gantry 11 by the receiving port lid attaching / detaching apparatus 14 a and the dust collecting port lid detaching apparatus 14 b provided on the lower stage of the gantry 11. The lids 7a and 7b that close the receiving port 5 and the dust collecting port 6 of the body container B are removed, and held by the receiving port lid attaching / detaching device 14a and the dust collecting port lid attaching / detaching device 14b. In addition, in the input side powder container A on the upper stage of the gantry 11, the handle 4 b of the opening / closing valve 4 of the input side powder container A is chucked by the valve opening / closing device 17.

  And in this embodiment, as shown in FIG. 4, raising the raising / lowering stand of the raising / lowering device 12 raises the receiving-side granular material container B, and the receiving-side granular material container B of the receiving base 15 is put into the hole 15a of the mounting table 15. As shown in FIG. 5, the inner peripheral surface of the receiving port portion 5 of the receiving-side granular container B passes the outer peripheral surface of the charging port portion 3 of the charging-side granular container A through the receiving port portion 5 in the inner and outer peripheral directions ( The insertion port 3 is inserted into the reception port 5 so as to cover the reception port 5 with a gap in the radial direction with respect to the center lines O and C of the reception port 5 and the insertion port 3 and the reception port 5 are vertically moved (center). In the direction of lines O and C). Thereby, the input side granular material container A and the receiving side granular material container B are communicated in a non-contact state.

  In addition, the amount of ascent of the receiving-side powder container B by the lifting device 12 at this time is the overlap length L in the vertical direction to the receiving port portion 5 of the charging port portion 3 that is preset and input to the lifting device 12. When the overlap length L reaches a predetermined value, the lifting of the receiving side powder container B by the lifting device 12 stops. It is desirable that the overlapping length L in the vertical direction of the charging port 3 of the charging side powder container A to the receiving port 5 of the receiving side powder container B is in the range of 10 mm to 50 mm.

  Further, in the present embodiment, the inlet side flange 3 a that protrudes to the outer peripheral side is provided on the outer periphery of the inlet portion 3, and the inlet side flange 5 a that protrudes to the outer peripheral side is also provided on the outer periphery of the inlet portion 5. The inlet-side flange 3a and the inlet-side flange 5a are provided so that the overlapping length L of the inlet-portion 3 to the inlet-portion 5 is the above-mentioned predetermined length, and the receiving-side granular material In a state where the ascent of the container B is stopped, the container B is disposed so as to be opposed to each other with a gap D that is smaller in the vertical direction than the gap between the inlet port portion 3 and the inlet port portion 5 in the inner and outer peripheral directions.

  In addition, as for the space | interval D of the up-down direction of the insertion port side collar part 3a and the receiving port side collar part 5a at this time, it is desirable to exist in the range of 5 mm-10 mm. Furthermore, the upper end portion of the dust collection port portion 6 of the receiving-side powder container B is in the state of the hole 15b of the mounting table 15 as shown in FIG. The dust collecting hood 16a disposed inside is accommodated in the inner peripheral portion at the lower end of the dust collecting hood 16a.

  In this way, when the input side powder container A and the reception side powder container B are communicated in a non-contact manner, the valve rod 4a and the open / close valve 4 are pulled up by the valve opening / closing device 17 that chucks the handle 4b. The inlet 3 of the input side granular container A is opened, and the granular material P held in the container body 1 of the input side granular container A as shown in FIG. From the receiving part 5 into the container main body 1 of the receiving-side granular container B and transferred. At the same time, by driving the dust collector, the dust generated by the introduction of the granular material P into the receiving-side granular material container B is collected through the dust collecting port 6 and the dust collecting hood 16a. Dust is collected from the dust pipe 16.

  Further, the weight of the granular material P thus transferred from the input side granular material container A to the receiving side granular material container B is measured by the measuring device 13. And if it was measured that the weight of the granular material P in the container main body 1 of the receiving-side granular material container B measured by this measuring device 13 became predetermined weight, as shown in FIG. By driving the valve opening / closing device 17 by the control means, the valve rod 4 a and the opening / closing valve 4 are lowered, and the opening / closing valve 4 is fitted into the inlet 3. As a result, the charging port 3 is closed and the transfer of the granular material P is stopped.

  Thereafter, as shown in FIG. 7, the receiving side powder container B is lowered by the lifting device 12 to return to the original height, and further, as shown in FIG. 8, the receiving portion lid attaching / detaching device 14 a and the dust collecting port. The lids 7a, 7b held by the part lid attaching / detaching device 14b are returned and attached to the receiving port part 5 and the dust collecting port part 6 of the receiving side powder container B, so that the receiving side powder container B The container body 1 is sealed. In this way, the receiving-side powder container B in which a certain amount of the powder P is transferred and the container body 1 is sealed is discharged from the lower stage of the gantry 11 and moved to the next process.

  In the granular material supply apparatus having such a configuration, the charging port 3 of the charging-side powder container A and the receiving port 5 of the receiving-side powder container B do not intervene with a hopper or chute. Connected. For this reason, it is not necessary to wash these hoppers and chutes when transferring other types of powders different from the previously transferred powder P, as described above, and time and labor for cleaning. Is not spent. Further, there is no possibility that different granular materials are mixed into the receiving-side granular container B due to insufficient cleaning.

  And in the granular material supply apparatus of the said structure, while the inlet part 3 of the injection | pouring side granular material container A overlaps with the up-down direction in the receiving port part 5 of the reception side granular material container B, inner and outer periphery The insertion side granular material container A and the receiving side granular material container B are communicated in a non-contact manner by being inserted at intervals in the direction. Accordingly, since the weight of the input side granular container A does not act on the receiving side granular container B, the weight of the granular substance P is measured by the measuring device 13 and the powder on the receiving side granular container B is measured. Even if the granular material P is charged and transferred, the weight of the granular material P can be accurately measured, and an appropriate amount of the granular material P can be transferred to the receiving-side granular material container B.

  In this embodiment, the weighing device 13 measures the weight of the granular material P transferred to the receiving-side granular material container B by measuring the weight of the receiving-side granular material container B. Instead of or in combination with this, the weight of the granular material P transferred to the receiving-side granular material container B may be measured by measuring the weight of the charging-side granular material container A. Also in this case, since the weight of the input side granular container A can be prevented from being lightly measured by contact with the receiving side granular container B, the weight of the transferred granular substance P can be accurately determined. It becomes possible to measure.

  Moreover, in this embodiment, the insertion length of the up-down direction to the receiving port part 5 of the receiving side granular material container B of the charging port part 3 of the charging side granular material container A is the up-down direction of this receiving port part 5. The inlet 3 of the input side powder container A does not protrude into the container body 1 from the inlet 5 of the reception side powder container B.

  For this reason, for example, even if a granular material different from the granular material P to be transferred later is held in the container body 1 of the receiving-side granular material container B first, the different granular material rises later. Even when the powder P to be charged adheres to the inlet 3 of the powder container A on the input side or the powder particle container or the receiving powder container tilts, the powder particle container on the input side There is no contact between the inlet 3 of A and the inlet 5 of the receiving-side granular container B.

  Here, the overlapping length L in the vertical direction of the input port portion 3 of the input side powder container A to the receiving port portion 5 of the reception side powder container B is in the range of 10 mm to 50 mm as in this embodiment. It is desirable to be within. If this overlap length L is longer than the above range, the particulate matter previously introduced into the receiving-side granular container B may be attached to the inlet 3 of the incoming-side granular container A, or charged. There is a possibility that the inlet 3 of the side powder container A may come into contact with the inlet 5 of the reception side powder container B. Moreover, when this overlap length is shorter than the said range, the part which opened the space | interval in the inner-periphery direction of the inlet 3 of the injection | pouring side granular material container A, and the inlet 5 of the reception side granular material container B There is a possibility that the granular material P leaks out of.

  Moreover, in this embodiment, the dust collection opening | mouth part 6 is provided in the receiving side granular material container B, and when transferring the granular material P, the inside of the receiving side granular material container B is from this dust collection opening | mouth part 6. Dust is collected after being exhausted. For this reason, even if the insertion port 3 of the input side powder container A is inserted into the receiving port 5 of the reception side powder container B at intervals in the inner and outer peripheral directions as described above, It is possible to surely prevent the powder P from leaking out from the spaced part.

  Further, in the present embodiment, the lower end of the charging port portion 3 of the charging-side powder container A is the lower surface of the leg portion 2 that supports the container main body 1 that is in close contact with the mounting table 15 of the gantry 11, that is, the seating portion 2b. It is located above the lower surface. For this reason, when the input side powder container A is moved, the input port 3 does not come into contact with the floor surface or the like, and even when it is moved on the mounting table 15 of the gantry 11, it is like a suspended crane conveyor. In addition to the moving means, moving means such as a lifter similar to the moving means of the receiving-side granular container B can be used. Moreover, since the leg part 2 is integral to the said seating part 2b, it does not require the effort of isolation | separation before and before the injection of the granular material P, and a connection.

  Moreover, in this embodiment, while the inlet side collar part 3a overhanging to an outer peripheral side is provided in the outer periphery of the inlet part 3 of the input side granular material container A, the inlet part 5 of the receiving side granular object container B is provided. The inlet side flange 5a that projects to the outer peripheral side is also provided on the outer periphery of the inlet side, and the inlet side flange 3a and the inlet side flange 5a are connected to the inlet port 3 of the inlet side powder container A. Is inserted into and communicated with the receiving port portion 5 of the receiving-side granular container B with an interval in the inner and outer peripheral directions, and is larger than the inner and outer peripheral direction interval between the inlet port portion 3 and the receiving port portion 5. They are arranged so as to face each other with a small gap in the vertical direction.

  For this reason, in particular, as in this embodiment, the dust collection hood 16a of the dust collection pipe 16 connected to the dust collector is opposed to the dust collection port 6 of the receiving-side powder container B, and the powder P is input. In some cases, when the inside of the container body 1 of the receiving-side granular container B is exhausted and collected, the inlet-side flange 3a of the inlet 3 and the inlet-side flange 5a of the inlet 5 are provided. Since the flow rate of the air taken into the container main body 1 of the receiving-side granular container B can be increased from a small interval therebetween, the input port portion 3 and the receiving port portion 5 are spaced in the inner and outer peripheral directions. However, it is possible to more reliably prevent the powder P from leaking out between the inlet 3 and the inlet 5 or between the inlet-side flange 3a and the inlet-side flange 5a. Can do.

  Furthermore, in this embodiment, when the inlet port side flange 3a is provided at the inlet port 3 and the inlet port side flange 5a is provided at the inlet port 5, the inlet port side flange 3a and the inlet port are provided. The distance D in the vertical direction with respect to the side flange 5a is in the range of 5 mm to 10 mm, and the leakage of the granular material P can be more reliably prevented. That is, if this interval D is larger than the above range, the powder P may leak from the receiving port portion 5 of the receiving side powder container B even if dust collection is performed, while the interval D is within the above range. If it is smaller than this, when the charging side powder container A and the receiving side powder container B are inclined, the charging port side flange 3a and the receiving port side flange 5a may come into contact with each other.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments. Additions, omissions, substitutions, and other modifications can be made without departing from the spirit of the present invention. The present invention is not limited by the above description, but only by the appended claims.
For example, in the above-described embodiment, the case where the weighing device 13 is provided has been described. However, the pre-weighed powder is supplied from the input-side powder container A to the receiving-side powder container B. It may be.

DESCRIPTION OF SYMBOLS 1 Container main body 2 Leg part 3 Input port part 3a Input port side collar part 4 Opening / closing valve 5 Receiving part 5a Receiving side side collar part 6 Dust collection port part 11 Base 12 Lifting apparatus 13 Measuring apparatus 16 Dust collection pipe 17 Valve opening / closing apparatus P granular material A input side granular material container B receiving side granular material container O center line of container main body 1 (center line of input port 3)
C Center line of the receiving port portion L L. Vertical overlap length of the charging port portion 3 to the receiving port portion D D Vertical distance between the loading port side flange 3a and the receiving port side flange 5a

Claims (7)

A container main body for holding powder particles, a cylindrical inlet port provided at the lower end of the container main body and extending vertically, an open / close valve for opening and closing the inlet port, and an upper part of the container main body It is a supply device of a granular material having an input side granular material container and a receiving side granular material container each provided with a cylindrical receiving portion extending in the vertical direction,
The charging port portion of the charging-side powder container is inserted into the receiving port portion of the receiving-side powder container so as to overlap in the vertical direction and at intervals in the inner and outer peripheral directions, and the charging-side powder The granular container and the receiving-side granular container are communicated in a non-contact manner ,
The outer periphery of the inlet portion of the input side powder container is provided with an inlet side flange that projects to the outer peripheral side, and the outer periphery of the inlet portion of the input side powder container is on the outer periphery side. An overhanging receiving side buttock is provided,
The charging port side flange and the receiving port side flange are formed by inserting the charging port part of the charging side granular material container into the receiving port part of the receiving side granular material container. In a state where the container and the receiving-side powder container are in communication with each other, the inner-periphery direction distance between the charging port part of the charging-side powder container and the receiving-portion part of the receiving-side powder container A supply apparatus for a granular material, which is opposed to each other with a small gap in the vertical direction .   The insertion length in the up-and-down direction of the receiving-side powder container in the receiving-side powder container is shorter than the vertical length of the receiving-portion part. The supply apparatus of the granular material of Claim 1.   2. The overlapping length in the vertical direction of the inlet side of the input side granular material container to the receiving side of the receiving side granular material container is in the range of 10 mm to 50 mm. Or the supply apparatus of the granular material of Claim 2.   The receiving side granular material container is provided with a dust collection port part, and the exhaust in the receiving side granular material container is exhausted from this dust collecting port part. The supply apparatus of the granular material as described in any one of them.   The charging-side powder container is provided with a leg portion that is provided integrally with the container body and supports the container body, and the lower end of the charging port portion of the charging-side powder container is The powder supply apparatus according to any one of claims 1 to 4, wherein the powder supply apparatus is located above a lower surface of the leg portion of the charging-side powder container.   The granular material according to any one of claims 1 to 5, further comprising a measuring device for measuring the weight of the granular material transferred to the receiving-side granular material container. Feeding device. The powder according to any one of claims 1 to 6, wherein an interval in a vertical direction between the inlet side flange and the inlet side flange is in a range of 5 mm to 10 mm. Granule supply device.

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