JPH05229522A - Powder filling device - Google Patents

Abstract

PURPOSE:To provide a powder filling device which can fill a toner in a bottle at a high speed with a high density, and can prevent the filled toner from being set in the bottle. CONSTITUTION:A rectifier core 28c is provided in a hopper 25a in which a specified quantity of a toner is stored, and the lower end opening of a nozzle part 26 which is connected to the hopper 25a is opened/closed by a valve disk 27. A valve disk driving shaft 28 to drive the valve disk 27 is being penetrated the nozzle part 26 and the rectifier core 28c in the hopper 25a. The upper part of the valve disk 27 becomes a cushioning part 27a which cushions the toner streaming down from the nozzle part 26, and the lower part of the valve disk 27 becomes a guide part 27b which guides a toner input port 82 of a bottle 81. The lower end of the nozzle part 26, on which the toner input port 82 of the bottle 81 is fitted on, is formed with a fixed outer diameter, and a pusher member 100 is provided on the nozzle part 26.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder filling device capable of filling powder such as toner used in an image forming apparatus into a predetermined container at high speed and high density.

[0002]

2. Description of the Related Art Toner used in an image forming apparatus such as an electrophotographic copying machine is filled in a bottle or a container such as a cartridge having a cylindrical shape or a rectangular tube, and is transported or stored. The filling of the toner in such a container is usually performed by positioning the container below the toner supply mechanism and allowing the toner in the toner supply mechanism to naturally drop into the container.

In such a method, the toner is not dropped into the container at a high speed due to the air existing in the container, and the toner dropped into the container is mixed with the air in the container, so that the bulk density is increased. Will not be packed densely. For this reason, it is not possible to fill a predetermined amount of toner into the container by one-time natural fall. For example, half the total amount of toner to be filled in the container is once filled by natural fall, and A method of filling the remaining toner after a lapse of a predetermined time is adopted.
In such a method, there is a problem in that the toner cannot be efficiently filled in the container and the work efficiency is very poor.

In contrast to this method, for example, in Japanese Unexamined Patent Publication No. 1-124503, the inside of a container filled with powder is depressurized, and the pressure generated between the inside of the container and the powder feeder. An apparatus has been disclosed in which it is possible to fill high-density powder from a powder feeder into a container at one time by utilizing the difference.
This powder filling device is provided with a nozzle section at the lower end of a hopper that stores toner in a state in which the inside and outside of a container installed in a decompression case are depressurized at the same time. The opening is opened and closed by raising and lowering a conical valve body whose diameter is gradually reduced toward the upper side. The lower end portion of the nozzle portion is located in a decompression case in which a container filled with toner is placed in a decompression state. When the toner is filled in the container, the inside and outside of the container arranged in the decompression case are decompressed at the same time, and then the toner inlet of the container is fitted to the lower end of the nozzle portion. Then, the lower end opening of the nozzle portion is opened by moving the valve element downward. As a result, the toner stored in the hopper flows down into the container at a high speed through the nozzle portion, and the toner is filled in the container. At this time, the inside of the decompression case is returned to the atmospheric pressure at the same time, so that the container is not damaged by the toner charged at high speed.

[0005]

In such a powder filling apparatus, since the velocity of the toner flowing down into the container is high and the inside of the container is depressurized, the toner flowing down into the container is compressed. There is a risk that it will be overkill. In particular, immediately after the start of filling, where the difference between the pressure inside the hopper and the internal pressure of the container is large, the toner flowing down into the container violently collides with the bottom surface of the container, so that a large compressive force acts on the toner.
As a result, depending on the particle size of the toner, the powder may solidify in a block shape at the bottom of the container. When the toner is set in the container, the toner may not be smoothly supplied from the container into the image forming apparatus when the container is attached to the image forming apparatus for use.

Further, when the toner in the hopper flows down into the container at a high speed, the toner flowing down in the hopper receives a strong compressive force from the inner peripheral surface of the diameter-reduced lower part of the hopper.
Therefore, the air mixed in the toner may be strongly compressed as it approaches the lower portion of the hopper, and may be blown upward at once before flowing out from the hopper. As a result, the powder in the hopper is blown up, and part of the powder is scattered outside the hopper. As described above, since a part of the toner in the hopper is scattered outside the hopper, a predetermined amount of toner may not be filled in the container.

Further, since the toner flows down into the container at a high speed while the pressure inside the container is reduced, a large amount of toner may be scattered in the container. The toner scattered in the container adheres to the outer peripheral surface of the nozzle part into which the toner input port of the container is fitted, or when the nozzle part and the toner input port of the container are not reliably sealed, There is also a risk of scattering outside the container. The toner attached to the outer peripheral surface of the nozzle part is
Then, the toner may be scraped off by the toner input port of the container fitted to the nozzle portion, and the container and the peripheral portion may be soiled. The toner scattered outside the container also stains the container and its peripheral portion. In order to remove the toner in the container and its peripheral portion, the toner filling operation must be interrupted once, and the filling operation efficiency is significantly reduced.

The present invention solves such a problem, and an object thereof is to enable powder to be packed at high speed and with high density, and the packed powder is hardened in a container. The object of the present invention is to provide a powder filling device capable of reliably preventing such a situation. Another object of the present invention is to provide a powder filling device capable of reliably preventing the powder from scattering outside the container and suppressing the adhesion of the powder to the nozzle portion and the like.

[0009]

The powder filling apparatus according to the present invention allows a powder to be flowed into the inside of a container in which the powder is filled while the inside and the outside of the container are decompressed in equilibrium. A device for filling powder into the container by pressurizing the outside of the container, which is connected to a hopper for storing a predetermined amount of powder flowing down into the container and a lower end portion of the hopper. Nozzle portion for flowing the powder in the hopper downward, and arranged so as to be able to move up and down with respect to the nozzle portion,
A valve body which is fitted into a lower end opening of the nozzle part by rising to close the opening part and which is opened to open a lower end opening part of the nozzle part, and the valve body is attached to the lower end part. A valve element drive shaft that is inserted through the shaft center of the hopper and the nozzle so as to be slidable in the vertical direction, and the shaft center of the hopper has an upper part and a lower part, respectively. A rectifying member having a conical shape that is gradually reduced in diameter toward the side is disposed, and the valve body drive shaft is slidably inserted through an axial center portion of the rectifying member. According to the above, the above object is achieved.

Further, the powder filling apparatus of the present invention allows the powder to flow into the inside of the container through the powder charging port from a state in which the inside and the outside of the container filled with the powder are decompressed in equilibrium. At the same time, a device for filling powder into the container by pressurizing the outside of the container, which is connected to a hopper for storing a predetermined amount of powder flowing down into the container and a lower end portion of the hopper. The nozzle is fitted with the powder inlet of the container at the lower end to allow the powder in the hopper to flow downward, and the nozzle is arranged so as to be able to move up and down with respect to the nozzle and rises. A valve element that is fitted into the concave end opening of the nozzle section to close the opening section, and lowers to open the lower end opening section of the nozzle section; and the valve element is attached to the lower end section. , Up and down the shaft center of the hopper and nozzle A valve element drive shaft that is slidably inserted, and the valve element is in the shape of a truncated cone whose diameter gradually decreases toward the upper side so that the powder flowing down from the nozzle portion collides with the outer peripheral surface. And a lower guide part having a truncated cone shape whose diameter gradually decreases toward the lower side so that the powder feeding port of the container is guided by the outer peripheral surface. The above-mentioned object is achieved thereby.

Further, the buffer portion of the valve body is provided with a constant outer diameter portion adjacent to above the fitted packing and fitted into the nozzle portion.

Further, the guide portion of the valve element has a shoulder portion which is adjacent to the lower side of the packing and which gradually increases in diameter as it goes downward.

Further, the packing is located at a position where it is pressed against the lower end opening of the nozzle portion, below the powder charging port of the container.

Furthermore, in the valve body, the buffer portion and the guide portion are separable, and the packing is sandwiched between them.

Further, the nozzle portion into which the powder charging port of the container is fitted is removable.

A pressing means is fitted to the nozzle portion so as to be slidable in the vertical direction, and the pressing means abuts on a portion of the container extending above the powder feeding port to fix the portion. It is urged downward so as to press downward.

[0017]

In the powder filling apparatus of the present invention, the powder stored in the hopper flows down to the nozzle portion while being rectified by the rectifying member by opening the lower end opening of the nozzle portion by the valve element. The container in the depressurized state fitted in the nozzle portion is filled at high speed. The powder flowing down from the nozzle portion into the container collides with the buffer portion of the valve body, and the impact inside the container is alleviated. When the powder charging port of the container is fitted into the nozzle part, the guide part provided under the valve body guides the powder charging port, so that the valve body smoothly enters the container.
Since the gap between the nozzle portion and the container is small, the adhesion of powder to the outer peripheral surface of the nozzle portion is suppressed. Even if the container is provided with a member extending upward from the powder inlet of the container, the container is easily removed from the nozzle portion because the pressing means presses the portion downward.

[0018]

EXAMPLES Examples of the present invention will be described below. The powder filling device of the present invention is used, for example, when filling a toner such as an image forming apparatus into a container such as a bottle or a cartridge. As shown in FIG. 1, this toner filling device includes a rotary filling device 10 having six working units 20 which are arranged at equal intervals in the circumferential direction and are integrally rotated in the direction of arrow A. , A bottle 81, which is a container to be filled with powder, is conveyed to the rotary filling device 10, and an end portion of the carrying conveyor 50 is arranged in the vicinity of the rotary filling device 10 and each working unit of the rotary filling device 10. 20
Toner meter 70 that measures and supplies a specified amount of toner to the
And have. Each bottle 81 as a container which is sequentially conveyed by the carry-in conveyor 50 has a container carrying-in device 60 arranged between the end portion of the carry-in conveyor 50 and the rotary filling machine 10, and each working unit 20 of the rotary filling machine 10. Are sequentially delivered to. The bottle 81 has a toner input port 81a protruding upward at the top.

Each working unit 20 of the rotary filling device 10 is
The work units 20 are intermittently orbitally moved to the six work stations ST1 to 6 which are arranged at equal intervals along the orbital movement range of each work unit 20, and the work stations ST1 to ST6.
In order to fill the toner in the bottle 81, each step of the toner filling work is sequentially performed. The bottle 81 in the work unit 20 filled with toner is transferred from the work station ST6 onto the carry-out conveyor 90 by the carry-out device 80. The carry-in conveyor 50 and the carry-out conveyor 90 extend linearly along the same straight line.

The rotary filler 10 is, as shown in FIG.
A cylindrical mount 13 is provided in the center, and a direct drive motor (not shown) is built in the mount 13. A hollow rotary shaft 12 connected to an output shaft of a direct drive motor provided in the gantry 13 extends upward from the upper end surface of the gantry 13. A hollow connecting shaft 11 is connected to the upper end of the rotating shaft 12,
One end of a horizontal hollow horizontal connecting shaft 14 is connected to the tip of the connecting shaft 11. The other end of the horizontal connecting shaft 14 is connected to a hollow base column 15 which is erected outside the work stations ST1 to ST6.

Hexagonal support plates 12a and 12b are horizontally fixed to the upper and lower ends of the rotary shaft 12, and the working units 20 are attached to the outer peripheral edge portions of the support plates 12a and 12b. Each is installed. Each work unit 20
Each has a toner supply mechanism 25 in the upper part for storing the toner to be filled in the bottle 81. Each toner supply mechanism 25 includes a hopper 25a for storing a predetermined amount of toner, a nozzle portion 26 connected to the hopper 25a, and the nozzle portion 2
The valve body 27 is arranged so as to be able to move up and down with respect to the lower end portion of 6. Also, at the bottom of each work unit 20,
A table 24c on which 81 is placed and is arranged so as to be vertically movable, and a table elevating mechanism 24 for elevating the table 24c.
Further, there is provided a cylindrical capsule 23 that is moved up and down in an airtight manner to the outer peripheral surface of the table 24c to reduce the pressure inside, and a capsule elevating mechanism 30 that elevates and lowers the capsule 23. When the capsule 23 is raised, the capsule 23 is in a state of surrounding the bottle 81 placed on the table 24c, and the upper end surface of the capsule 23 is horizontally provided below the toner supply mechanism 25. The lid 22a is joined in an airtight manner. As a result, the inside of the capsule 23 is kept airtight.

The rotary filler 10 is, as shown in FIG.
By rotating the rotary shaft 12, each working unit 20 is sequentially
It is adapted to be intermittently moved so as to be located at each work station ST1 to ST6. At the work station ST1 near the end of the carry-in conveyor 50, the bottle 81 is transferred from the end of the carry-in conveyor 50 onto the table 24c of the work unit 20. At the work station ST2, the capsule 23 is raised and the upper end surface of the capsule 23 is brought into contact with the lid 22a in an airtight state. As a result, the inside of the capsule 23 is made airtight, and then the inside of the capsule 23 is subjected to primary pressure reduction. At this time, the pressure inside the bottle 81 is also reduced. In the work station ST3, a predetermined amount of toner is cut out from the toner measuring device 70 arranged above the work station ST3 into the hopper 25a of the toner supply mechanism 25 in the work unit 20, and the table 24c located inside the capsule 23 is removed. The toner inlet 81a of the bottle 81 that has been lifted and placed on the table 24c is positioned near the nozzle portion 26. In this state, the inside of the capsule 23 is secondarily depressurized and the bottle 81
The inside is also decompressed. At the work station ST4, the table 24c is further raised and the toner input port 81a of the bottle 81 is reached.
Is fitted into the nozzle portion 26. Then, the valve body 27 is lowered and the nozzle portion 26 is opened, so that the toner supply mechanism is
The toner in the hopper 25a of 25 flows down into the bottle 81. At this time, the pressure inside the capsule 23 is increased at the same time, and the pressure around the bottle 81 is set to the atmospheric pressure. Then, at the station ST5, the capsule 23 and the table 24c
Is lowered, and the toner-filled bottle 81 is transferred onto the unloading conveyor 90 by the unloading device 80 at the station ST6.

Each working unit 20, as shown in FIG.
It is attachable to and detachable from support plates 12a and 12b attached to the rotary shaft 12. Each working unit 20 has a pair of vertical cylindrical hollow columns 21 and 21, and each column 21 is provided with a pair of notches 16a provided on the outer periphery of the support plates 12a and 12b. And 16a, and is supported vertically. A bottom plate 21a is horizontally supported at the lower end of each column 21. Above the bottom plate 21a, an upper fixing plate 21c is supported in a horizontal state with an appropriate interval.

The bottom plate 21a has a substantially square shape, and the table 24 on which the bottle 81 is placed is placed in the center of the upper surface thereof.
A table elevating mechanism 24 for elevating and lowering c is provided. Further, between the bottom plate 21a and the upper fixed plate 21c, a capsule for raising and lowering a vertical cylindrical capsule 23 that is raised so as to surround the periphery of the bottle 81 placed on the table 24c. A lifting mechanism 24 is also provided. The capsule 23 is an upper capsule 23 made of transparent resin.
The upper capsule 23a and the lower capsule 23b are joined in an airtight state.

The hopper 25a of the toner supply mechanism 25 provided on the upper portion of the working unit 20 is mounted on the upper support plate 22b which is horizontally supported by the upper ends of the columns 21, and is provided on the upper support plate 22b. It is supported while being fitted in the notch 22d. Under the upper support plate 22a, a lid 22a that is in contact with the upper end surface of the capsule 23 is supported in a horizontal state. The lid 22a and the upper support plate 22b are formed by the columns 21
Cylindrical connecting pipes 22c fitted onto the upper ends of
And 22c, they are connected at a predetermined interval. A cylindrical connecting pipe 25b is connected to the lower end of the hopper 25a. The lid 22a is provided with a through hole 22e through which the connecting pipe 25b connected to the lower end of the hopper 25a is inserted. The lid plate 22a is also provided with a pair of through holes 22f and 22g with the through hole 22e interposed therebetween. A tightening nut 25d is screwed from below to the connecting pipe 25b inserted through the central through hole 22e. As a result, the hopper 25a and the connecting pipe 25b are fixed to the upper support plate 22b and the lid 22a. Inside the connecting pipe 25b, the hopper 2
The toner in 5a is transferred to the bottle 81 placed on the table 24c.
The nozzle part 26 for flowing down to is screwed,
Below the nozzle portion 26, a valve body 27 that opens and closes a lower end opening portion of the nozzle portion 26 is vertically movable. Disc 27
Is attached to the lower end portion of the valve body drive shaft 28 that passes through the axial center portions of the connecting pipe 25b and the hopper 25a.

FIG. 4 shows details of the toner supply mechanism 25 provided above the working unit 20. The valve body drive shaft 28 is inserted through the shaft center portion in the hopper 25a supported by the upper support plate 22b. The valve body drive shaft 28 also passes through a connecting pipe 25b connected to the lower end of the hopper 25a and a shaft center portion of a nozzle portion 26 connected to the lower end of the connecting pipe 25b.
A valve body 27 is attached to the lower end of 28. Nozzle part
26 is screwed to the inner peripheral surface of the lower end of the connecting pipe 25b passing through the through hole 22e of the lid 22a. The connecting pipe 25b is detachably connected to the upper support plate 22a by a tightening nut 25d. Therefore, the connecting pipe 25b is connected to the tightening nut 25d.
Can be easily separated from the connecting pipe 25b,
Further, since the nozzle portion 26 is attached to and detached from the connecting pipe 25b by screw connection, various nozzle portions having different inner diameters can be easily replaced with the connecting pipe 25b.

The upper end portion of the valve body drive shaft 28 has a hopper 25a.
Of the valve element drive shaft 28 extends upward through the lid portion 25g that closes the upper end surface of the valve body drive shaft 28 to the air cylinder 32 mounted on the lid portion 25g via the connecting rod 31. It is connected. The connecting rod 31 and the upper end of the valve body drive shaft 28 are connected by a connecting pin 31a. Therefore, the connecting rod 31 and the valve body drive shaft 28 can be easily separated. The lid portion 25g is provided with a cylindrical introduction pipe portion 25h for allowing the toner to flow into the hopper 25a,
When the working unit 20 is located at the station ST3,
The introducing pipe portion 25h is positioned below the outlet of the toner measuring device 70 provided above the station ST3 in an aligned state. The cross-sectional area of the introduction pipe portion 25h and the internal volume of the hopper 25a are appropriately set so that the toner flowing from the toner measuring device 70 does not scatter.

The valve disc drive shaft 28 has an upper portion 28a passing through the hopper 25a having a larger diameter than a lower portion 28b passing through the connecting pipe 25b. Large diameter upper part 2 that passes through the hopper 25a
The diameter of 8b is set so as not to be damaged by the pressure of the toner flowing into the hopper 25a.
The diameter of the lower portion 28b passing through the inside of the connecting pipe 25b is set to 6% or less of the cross-sectional area of the toner passage area in the connecting pipe 25b so that the toner flows down smoothly in the connecting pipe 25b.

A rectifying core 28c for rectifying the toner in the hopper 25a so as to smoothly flow down into the connecting pipe 25b is attached to the lower portion of the hopper 25a. The rectifying core 28c
Is supported in a vertical state by a support member 28x radially supported in a horizontal state on the inner peripheral surface of the hopper 25a, and the valve body drive shaft 28 is vertically slidable at the axial center portion of the rectifying core 28c. It is inserted. The rectifying core 28c has a large diameter in the central portion in the vertical direction, and has an upper portion 28d and a lower portion 28e.
Has a truncated cone shape whose diameter is gradually reduced toward the upper end and the lower end, respectively. The inclination angle of the outer peripheral surface of the upper portion 28d of the rectifying core 28c is set so that the toner has a repose angle of 50 degrees or more, and the toner supplied into the hopper 25a is the upper portion of the rectifying core 28c. 28d When the toner collides with the outer peripheral surface, the toner is prevented from bouncing and scattering around. Also, the lower part 28e of the rectifying core 28c
The outer peripheral surface is set to an inclination angle substantially the same as the inclination angle of the inner peripheral surface of the lower end portion of the hopper 25a to prevent toner from remaining on the lower end portion of the hopper 25a.

The nozzle portion 26 connected to the hopper 25a via the connecting pipe 25b has an inner diameter similar to that of the connecting pipe 25b, and as shown in FIG. It has an outer diameter. A nozzle packing 26b is externally fitted to the lower end of the nozzle portion 26, and the nozzle packing 26b is abutted against the gap between the lower end of the nozzle 26 and the upper portion. The nozzle packing 26b
Is hermetically pressed against the upper end surface of the toner input port 81a of the bottle 81 fitted to the lower end portion of the nozzle portion 26. Since the lower end portion of the nozzle portion 26 inserted into the toner input port 81a of the bottle 81 has a constant outer diameter in this way, the gap between the inner peripheral surface of the toner input port 81a of the bottle 81 is small, and The invasion of toner into the gap is suppressed.

As shown in FIG. 5, the valve body 27 attached to the lower end portion of the valve body drive shaft 28 has a truncated cone shape in which the diameter is gradually reduced toward the upper side so as to fit into the nozzle portion 26. An upper cushioning portion 27a, a lower guide portion 27b having a truncated cone shape whose diameter is gradually reduced toward the lower side, a cushioning portion 27a and a guide portion 27.
and an annular packing 27c interposed between and b. In the lower portion of the buffer portion 27a, a cylindrical recess 27j opening downward is formed concentrically with the buffer portion 27a, and
A cylindrical protrusion 27d fitted in the recess 27j is formed at the axial center of the lower guide portion 27b. Then, the axial center portion of the buffer portion 27a is provided with a through hole 27k having a thread groove formed on the inner peripheral surface thereof, and the axial center portion of the guide portion 27b has a screw hole 27e in the through hole 27k. It is provided in alignment. A male screw portion 28f is provided at the lower end of the lower portion 28b of the valve body drive shaft 28, and the male screw portion 28f is formed through the through hole 27 of the buffer portion 27a.
While being screwed to k, it is inserted into the fitting hole 27e of the guide portion 27b through the through hole 27k. Packing 27
The c is fitted to the protrusion 27d of the lower guide portion 27b, and is sandwiched by the guide portion 27b and the upper buffer portion 27a. Upper cushion 2 for pressing the packing 27c
On the lower end surface of 7a, a protrusion 27m sharply protruding downward so as to bite into the upper surface of the packing 27c is provided in an annular shape over the entire circumference. The packing 27c has a thin plate shape, and an outer peripheral edge portion thereof extends outwardly from an outer peripheral surface of a lower end portion of the upper guide portion 27a.

When the valve body 27 as a whole is raised by raising the valve body drive shaft 28, the upper cushioning portion 27a is fitted into the lower end opening of the nozzle portion 26, and the outer peripheral edge of the packing 27c is attached to the lower end surface of the nozzle portion 26. And the lower end surface of the nozzle is hermetically pressed. Then, as the valve body drive shaft 28 descends, the valve body 27
When is lowered, the packing 27c opens the lower end opening of the nozzle 26, and the toner stored in the hopper 25a flows downward through the opening. The toner flowing down from the nozzle portion 26 collides with the buffer portion 27a of the valve body 27 located below the nozzle portion 26. Since the outer peripheral surface of the buffer portion 27a of the valve body 27 is inclined so that the diameter gradually increases as it goes downward, the toner flowing down from the connecting pipe 25b is absorbed by the buffer portion 2a.
By colliding with the outer peripheral surface of 7a, the flow velocity of the toner is reduced. The outer peripheral surface of the vicinity of the packing 27c, which is the lower end of the buffer portion 27a, has a constant diameter smaller than the outer diameter of the packing 27c. Therefore, even if the axial center of the valve body 27 is displaced from the axial center of the nozzle portion 26, the lower end portion of the nozzle portion 26 is guided by the lower end portion of the cushioning portion 27a, and the upper surface of the packing 27c becomes the nozzle portion. 26 It is designed to be pressed firmly against the lower end surface. The packing 27c has a thin plate shape, and since the protrusion 27m formed on the lower end surface of the cushioning portion 27a is in a state of biting into the upper surface of the packing 27c, the cushioning portion 27a
There is no possibility that toner will enter the shaft center of the.

The lower guide portion 27b of the valve body 27 is provided with a shoulder portion 27f whose diameter gradually increases from the outer peripheral surface of the packing 27c toward the lower side. The outer peripheral surface 27g is successively reduced in diameter. This outer peripheral surface is inclined at an angle of 45 degrees or more, and when the bottle 81 is raised and abuts on the nozzle packing 26b fitted in the nozzle portion 26, the toner input port 8 of the bottle 81 is
It is supposed to guide 1a.

The valve body 27 is designed to be replaced when the container filled with toner is changed. Disc
Reference numeral 27 denotes a connection pin 31a that disconnects the valve body drive shaft 28 and the connection rod 31 that penetrate the lid 25g of the hopper 25a.
By sliding the valve drive shaft 28 downward, the valve drive shaft 28 and the valve drive shaft 28 can be detached integrally from the toner feeder 25. When the valve body 27 is newly attached to the toner feeder 25, the valve body drive shaft 28 to which the valve body 27 is attached is attached.
From the lower end opening of the nozzle part 26,
The rectifying core 28d provided inside is inserted into the axial center portion, and the lid portion 25g of the hopper 25a is penetrated. And the valve body drive shaft
The valve body 27 is attached to the toner feeder 25 by connecting the upper end of 28 and the connecting rod 31 with the connecting pin 31a.

A cylindrical pusher member 100 is provided on the outer peripheral portion of the nozzle portion 26. As shown in FIG. 6, the pusher member 100, which is a container filled with toner, has an opening on one side surface, and the slide plate 82 has an opening.
When using the cartridge 82 covered by b,
It is provided to press the upper end portion of the slide plate 82b extending above the toner input port 82a. The pusher member 100 has a cylindrical upper portion and a truncated cone shape in which the lower portion is gradually reduced in diameter as it goes downward. Further, on the upper part thereof, recessed portions 110 opened upward are formed at four locations at equal intervals in the circumferential direction, and a coil spring 111 is provided in each recessed portion 110. The horizontal lower end surface of each coil spring 111 has a nozzle packing 26b attached to the nozzle portion 26.
The pusher member 100 is pressed downward so that the pusher member 100 is located below the pusher member 100. In the truncated cone-shaped lower part of the pusher member 100, notch parts 120 opened downward at four positions equally spaced in the circumferential direction so as to be located between the recesses.
Are formed respectively, and the pin 121 fixed to the nozzle portion 26 is inserted in each notch 120 in a horizontal state. Each pin 121 prevents the pusher member 100 from dropping downward by being pressed downward by the coil spring 111.

At the lower part of the working unit 20, as shown in FIG. 7, a table elevating mechanism 24 for elevating a table 24c on which a bottle 81 is placed, and a capsule elevating mechanism for elevating a capsule 23 forming a capsule decompression chamber. 30 are provided. The table lifting mechanism 24 has an air cylinder 24s, and the air cylinder 24s is a column 21 (see FIG. 3).
It is vertically fixed on the central portion of the bottom plate 21a supported by the. The piston rod 24p of the air cylinder 24s is
A table 24c, which extends upward and in which the bottle 81 is placed, is supported in a horizontal state at the tip of the piston rod 24p. At the center of the upper surface of the table 24c, a column-shaped support stand 24d is provided so as to project upward. The bottle 81 placed on the table 24c is, for example,
The toner input port 8 of the bottle 81 is held by the retainer 24e.
The support 1d is supported by the support base 24d so that the 1a is in a vertical state facing upward. The lower end of the retainer 24e is provided with a recess into which the support 24d of the table 24c can be fitted. Also,
A wall portion 24f extending upward is provided over the entire circumference on the outer peripheral portion of the upper surface of the table 24c.
As a result, the toner that has fallen onto the table 24c is prevented from scattering around. The table 24c
Is formed of, for example, a white resin or a mirror-finished metal, and the fall of toner can be detected by detecting a change in the reflectance of the table 24c with an optical sensor.

The air cylinder 24s for raising and lowering the table is
It is designed to be expanded and contracted by high pressure air.
Then, when the piston rod 24p is driven so as to be raised so that the table 24c is raised, the pressure of the drive air is set lower than when the piston rod 24p is driven so as to be lowered.

On the lower side of the table 24c at the tip of the piston rod 24p, an upper end surface of a cylindrical cover member 24b surrounding the air cylinder 24s is attached. Therefore, when the piston rod 24p of the air cylinder 24s rises, the cover member 24b rises together with the table 24c.

A capsule elevating mechanism 30 for elevating the capsule 23 surrounding the table 24c and the bottle 81 placed on the table 24c is provided vertically between the bottom plate 21a and the upper fixing plate 21c (see FIG. 3). It has a rodless type air cylinder 24h. The movable portion 30a of the air cylinder 24h has a movable plate 24g having a through hole 24y in the central portion.
Are supported horizontally. Through hole of the movable plate 24g
A cover member 24b surrounding the air cylinder 24s of the table lifting mechanism 24 is inserted through 24y. 24g of the movable plate
Is slidably supported by a pair of guide shafts 24i on the side opposite to the air cylinder 24s.
Therefore, the movable plate 24g is vertically moved up and down by the rodless type air cylinder 24h. Each guide shaft 24i is vertically supported between the bottom plate 21a and the upper fixed plate 21c.

The cover member 24b, which is inserted through the through hole 24y of the movable plate 24g, is inserted through the cylindrical slider 24a provided on the movable plate 24g. On the inner peripheral surface of the slider 24a, a plurality of O-rings 24j and 24j that are in airtight contact with the outer peripheral surface of the cover member 24b are supported in ring grooves 24z provided at appropriate intervals in the vertical direction. Even when the cover member 24b and the movable plate 24g move up and down relatively, the airtight state between them is maintained by the O-rings 24j. Since the O-rings 24j are arranged on the upper part and the lower part of the slider 24a, respectively, the cover member 24b is attached to the slider 24a.
The cover member 24b is prevented from tilting when it is moved up and down with respect to the vertical direction, and the cover member 24b is vertically moved up and down. In addition, the slider 2 that houses each O-ring 24j
A plurality of small holes 24k that radially penetrate the slider 24a are formed in the ring groove 24z of 4a. When removing each O-ring 24j, a pin is inserted from the outer peripheral surface of the slider 24a into the small hole 24k. By pressing the O-ring 24j inward, the O-ring 24j can be easily removed.

A capsule support 24x is fitted around the outer periphery of the slider 24a. A flange portion that supports the lower end portion of the capsule 23 is provided on the outer peripheral surface of the lower end portion of the capsule support base 24x, and the capsule 23 is vertically supported on the flange portion. On the outer peripheral surface of the capsule support 24x, a packing 24m that airtightly contacts the inner peripheral surface of the capsule 23
Is provided. 24m packing is 24x capsule support
Between the capsule 23 and the capsule 23, the capsule 23b can be easily attached / detached to / from the packing 24m.
The elastic modulus is set so that a gap of 1.70 mm or more is formed with respect to the inner surface of the capsule 23 so that the airtightness with 24 m is not impaired.

When the capsule 23 is lifted by the air cylinder 24h in the capsule lifting mechanism 30, the upper end surface of the capsule 23 is hermetically pressed against the lower surface of the lid 22a supported by each column 21. As a result, the inside of the capsule 23 becomes airtight, and the table 24c and the bottle 81 are positioned inside the airtight capsule 23. Inside the airtight capsule 23, a decompressor attached to each work unit 20.
The pressure is reduced by 94 (see FIG. 8), which also reduces the pressure in the bottle 81 located inside the capsule 23. When the inside of the bottle 81 is decompressed, the air cylinder 24s of the table elevating mechanism 24 is driven and the bottle 81 is moved up inside the capsule 23. Then, the toner input port 81a of the bottle 81 is fitted into the nozzle portion 26.

The capsule 23 is composed of an upper half body and a lower half body which are made of transparent synthetic resin and are hermetically joined to each other. Therefore, the capsule 23 can be easily separated into an upper half body and a lower half body, so that internal maintenance and the like can be easily performed and the capsule 23 is also excellent in transportability. Further, since the capsule 23 is made of a transparent synthetic resin, the toner drop inside the capsule 23 can be detected visually or by an optical sensor installed outside.

The extension stroke of the air cylinder 24s is
It is adapted to be adjusted according to the height of the bottle 81 placed on the table 24c, and even when containers of different heights are placed on the table 24c, the container is placed near the nozzle portion 26. It can be raised without any trouble and can be easily fitted into the nozzle portion 26. Further, since the height of the table 24c is made equal to the height of the upper fixing plate 21c, the table elevating mechanism 24 is accommodated below the upper fixing plate 21c, and the working unit 20 as a whole is compact. Can be

As shown in FIG. 8, an exhaust type pressure reducer 94 is provided on the lid 22a that comes into contact with the upper end surface of the capsule 23 in an airtight state. Each depressurizer 94 has a main passage 96 through which high-pressure air flows, and a sub-passage 97 that communicates with the main passage 96 so as to be depressurized by the high-pressure air flowing through the main passage 96. Each sub passage 97 is connected to one through hole 22f (see FIG. 3) provided in the lid 22a through the opening / closing valve 93. Therefore, the capsule 23 is attached to the lid 22a.
When high-pressure air flows through the main passage 96 of the decompressor 94 in a state of being pressed against, the sub passage 97 is depressurized and the opening / closing valve 93 is opened, so that the capsule is passed through the through hole 22f of the lid 22a. The pressure inside 23 is reduced. Each exhaust type pressure reducer 94 provided in each work unit 20 is connected via an on-off valve 92,
It is connected to a single high pressure air supply 95. The high-pressure air supplied from the high-pressure air supply source 95 is fed into the connecting shaft 11 from the upper end of the hollow connecting shaft 11 shown in FIG. 2, and each lid is connected by six flexible connecting pipes (not shown). It is fed via the on-off valve 92 to the pressure reducer 94 attached to the body 22a. The air exhausted from each decompressor 94 is
Each working unit 20 is discharged through a hollow one of a pair of columns 21 to which the working unit 20 is attached, a hollow rotary shaft 12, and a hollow output shaft of a direct drive motor to which the rotary shaft 12 is connected. It has become so. In each exhaust type pressure reducer 94, high-pressure air flows through the inside of the passages 96 and 97, so that fine dust such as toner does not stay inside the passages 96 and 97. The through hole 2 of the lid 22a
2g is provided so as to be used when the inside of the depressurized capsule 23 is returned to normal pressure, and the through hole 22g is opened and closed by an on-off valve (not shown).

As shown in FIG. 9, the stations ST4 and 5 in which the work unit 20 orbits move, as shown in FIG. 9, when the work units orbit, the introduction pipe portion 25h of the hopper 25a provided in each work unit 20 is introduced. Dust hood facing the
35 are provided respectively. Each dust collecting hood 35 includes a support rod 37 supported by the base column 15 of the rotary filler 10.
The dust collecting hood 35 is connected to one end of a dust collecting pipe 36 whose inside pressure is reduced. A rotary type cylinder 38 is supported by the base column 15, and a base end of a horizontal connecting arm 39 is attached to the cylinder 38, and a tip end of the connecting arm 39 is attached. Is the hopper in each work unit 20
It faces the peripheral surface of 25a. The connecting arm 39 is horizontally reciprocally rotated by a cylinder 38. A knocker 29 is attached to the tip of the connecting arm 39 so as to face the peripheral surface of the hopper 25a, and the knocker 29 collides with the peripheral surface of the hopper 25a and gives an impact when the cylinder 38 is driven. Is becoming

Further, at the station ST6, the nozzle 27 and the valve body 27 of the toner feeder 25 are fitted so that the valve body 27,
A cleaner 95 for removing the toner adhering to the inner peripheral surface of the nozzle portion 26, the inner peripheral surface of the hopper 25a, etc. is provided, and the cleaner 95 is fitted into the nozzle portion 26 to reduce the pressure, so that the inside of the hopper 25a, etc. The toner adhering to is sucked and removed.

A toner filling operation by the powder filling device having such a structure will be described with reference to FIG. Figure 10
As shown in (a), in the working unit 20 that has moved around to the station ST1, the capsule 23 is in the state of descending to the lowermost side, so that the table 24c is positioned at the same height as the upper end surface of the capsule 23. Has been done. Further, the nozzle portion 26 at the lower end of the toner supply device 25 provided at the upper part of the working unit 20 is closed by the valve body 27 moved upward. Then, the bottle 81 conveyed to the terminal end of the carry-in conveyor 50 is transferred onto the table 24c by the carry-in device 60. When the bottle 81 is transferred onto the table 24c, the respective working units 20 are integrally circulated, and the working unit 20 located in the station ST1 is located in the station ST2.

When the working unit 20 is located at the station ST2, as shown in FIG. 10B, first, the capsule lifting mechanism 30 is driven to lift the entire capsule 23. The capsule 23 is raised until the upper end thereof comes into close contact with the lower end surface of the lid 22a, and the upper end surface of the capsule is closed in an airtight state by the lid 22a. As a result, the raising of the capsule 23 is stopped. In such a state, in order to confirm that the upper end surface of the capsule 23 is hermetically sealed by the lid 22a, the decompressor 94 provided in the working unit 20 passes through the through hole 22f of the lid 22a. The pressure inside the capsule 23 is reduced, and the pressure inside the capsule 23 is reduced to, for example, -300 mmHg. Since the toner input port 81a of the bottle 81 located inside the capsule 23 is opened, the inside of the bottle 81 is also depressurized at the same time as the depressurization inside the capsule 23.

By such confirmation work, the capsule 23
When it is confirmed that the upper end surface of the work unit 20 is sealed, the working unit 20 is moved to the station ST3.
At the station ST3, a predetermined amount of toner is supplied from the toner measuring device 70 located above the toner supplying device 25 to the toner supplying device 25 in which the lower end opening of the nozzle portion 26 is closed by the valve body 27. .. Then, the inside of the capsule 23 is decompressed to -500 mmHg. Due to the reduced pressure at this time,
At the same time, the pressure inside the bottle 81 is also reduced. Then, when the inside of the capsule 23 reaches −500 mmHg, the air cylinder 24s for lifting the table is driven, and the table 24c is lifted to lift the bottle 81. As a result, the bottle 81 rises in the capsule 23, and the cover member 24b covering the piston rod 24p of the air cylinder 24s enters the capsule 23. In this way, when the toner inlet 81a of the bottle 81 reaches a predetermined position near the nozzle portion 26, the driving of the air cylinder 24s is stopped. At this time, the degree of pressure reduction in the capsule 23 changes because the cylindrical cover member 24b sequentially enters the capsule 23. Therefore, when the toner input port 81a of the bottle 81 comes close to the nozzle 26 immediately before being fitted into the nozzle 26, once,
Lifting of table 24c is stopped.

The ascent of the table 24c is stopped by the level sensor provided outside the capsule 23 detecting that the upper end surface of the bottle 81 has reached a predetermined position near the nozzle portion 26.

The air cylinder 24s for raising the table 24c on which the bottle 81 is placed is adapted to raise the table 24c by a relatively low air pressure.
Since the table 24c is sucked upward by depressurizing the inside of the capsule 23, the table 24c is raised at high speed even if the air pressure of the air cylinder 24s is relatively low.

When the toner input port 81a of the bottle 81 comes close to the nozzle 26 and the ascent of the bottle 81 is stopped, the piston rod 24p is attached to the air cylinder 24s.
A low air pressure is applied in the direction of lowering. The air pressure is set so that the force applied to the table 24c is balanced with the upward force due to the reduced pressure inside the capsule 23, and thus the table 24c is reliably stopped at a predetermined height position. It

As described above, in order to surely stop the table 24c at the predetermined height position, the pressure F of the air applied to the air cylinder 24s in the direction of lowering the piston rod 24p is the capsule 23 when the table 24c is stopped. When the degree of pressure reduction inside the cover member is -x mmHg and the cross-sectional area of the cover member 24b is Bcm ² , F = B × (1 (Kg / cm ² ) × (x / 760)) is set.

In this way, the toner input port 81a of the bottle 81 is
When the state is stopped at a predetermined position near the nozzle portion 26, the inside of the capsule 23 is further decompressed by the decompressor 94, and the inside of the capsule 23 and the inside of the bottle 81 have a set decompression value of 98
The pressure is reduced until it reaches%. Then, when the inside of the capsule 23 and the bottle 81 is depressurized to a predetermined pressure, depressurization by the depressurizer 94 is stopped, and the inside of the capsule 23 and the bottle 81 is maintained in the depressurized state, and the next work is performed. The working unit 20 is circularly moved to the station ST4.

At the work station ST4, FIG.
As shown in (d), decompression of the capsule 23 is restarted,
The capsule 23 and the bottle 81 are depressurized to the set pressure. In this way, at the work station ST3,
In order to raise the bottle 81 to a predetermined height position, the degree of pressure reduction in the capsule 23 by the cover member 24b entering the capsule 23 is changed, but the bottle 81 is raised to a position close to the nozzle portion 26. When the majority of the amount of the cover member 24b that finally enters the capsule 23 enters the state, the ascent of the table 24c is temporarily stopped, and then the pressure inside the capsule 23 is further reduced to the set pressure. Since the pressure is reduced in this way, the pressure inside the capsule 23 is accurately reduced to the set value.

When the capsule 23 is depressurized to the set pressure,
The table 24c is further raised so that the toner input port 81a of the bottle 81 fits into the nozzle portion 26. At this time, the valve body 27 that closes the lower end of the nozzle portion 26 is
The tapered outer peripheral surface 27g of 27b enters the toner input port 81a while guiding the toner input port 81a of the bottle 81 to be concentric with the valve body 27. Then, the valve body 27 enters the toner input port 81a of the bottle 81, and the toner input port 81a is hermetically pressed against the lower end surface of the packing 26b fitted to the nozzle portion 26.

In such a state, the toner hopper
The air cylinder 32 mounted on the lid 25g of the 25a is driven, and the valve body drive shaft 28 connected to the valve body 27 is moved downward. As a result, the valve body 27 is lowered and the nozzle
The lower end opening of the hopper 25 is opened, and the toner in the hopper 25a is supplied to the rectifying core 28 provided at the lower axial center of the hopper 25
The upper part 28d of c smoothly flows down to the nozzle part 26 while being rectified. Then, it is flowed down from the nozzle portion 26 at high speed into the depressurized bottle 81. Even if the air is blown upward due to the toner being compressed in the diameter-reduced lower portion of the hopper 25a, the air flow is rectified by the lower portion 28e of the rectifying core 28d.
The turbulent flow does not occur in a
Flow down to. At this time, at the same time, the through hole 22g of the lid body 22c pressed against the upper end surface of the capsule 23 is opened by opening the on-off valve attached to the through hole 22g, and the atmosphere is introduced into the capsule 23. To be done. As a result, the inside of the capsule 23 around the bottle 81 into which the toner flows at high speed is returned to the atmospheric pressure, and the bottle 81 is not damaged by the toner flowing in at high speed.

The toner flowing into the bottle 81 is collected in the nozzle portion.
Colliding with the buffer portion 27a of the valve body 27 located below 26,
It flows down along the outer peripheral surface of the buffer portion 27a. As a result, the toner flowing into the bottle 81 is prevented from being violently collided with the bottom portion of the bottle 81 due to the reduced flow-down velocity. Therefore, the toner blocking phenomenon in which the toner solidifies in the bottle 81 is prevented.

Further, when the valve body 27 is opened, the hopper 25a is vibrated by the knocker 29. As a result, the toner in the toner hopper 25a reliably flows down into the bottle 81 without staying.

Next, the working unit 20 is shown in FIG.
It is moved circularly to the station ST5 shown in FIG. 3, the knocker 29 provided in the station ST5 is driven, the hopper 25a is vibrated, and the toner remaining in the hopper 25a is surely discharged into the bottle 81. Then, when the knocker 29 is driven for a predetermined time, after that, the valve body 27
Is raised and the lower end opening of the nozzle portion 26 is closed.
Then, in order to lower the bottle 81, the table 24c is lowered and the capsule 23 is lowered. At this time, since the air cylinder 24s for lowering the table 24c is driven at high speed by the high pressure air,
c is lowered at high speed.

Thereafter, as shown in FIG. 10 (f), the working unit 20 is moved to the last station ST6, and carries out the toner 81-filled bottle 81 placed on the table 24c. By this, it is transferred from the table 24c onto the carry-out conveyor 90. At this time, station S
A cleaner 95 provided at T6 is fitted to the nozzle portion 26, sucks the inside of the nozzle portion 26, and then the valve body 27 and the nozzle 26
The toner attached to the inner peripheral surface, the inner peripheral surface of the hopper 25a, etc. is removed. In this way, when the toner supply device 25 of the working unit 20 is cleaned, the working unit 20 is circulated to the station ST1 and the operation similar to the above-described operation is repeated, so that the toner in the bottle 81 remains. Is filled.

As a container filled with toner, a cartridge 8 having a slide plate 82b as shown in FIG.
When 2 is used, when the toner input port 82a of the cartridge 82 is fitted to the nozzle portion 26 at the station ST4, the pusher member 100 is pressed by the slide plate 82b of the cartridge 82 and moved upward. become. Therefore, when the cartridge 82 is lowered after the toner filling is completed, the slide plate 82b is pushed downward by the pusher member 100, so that the toner input port 82a of the cartridge 82 is reliably separated from the nozzle portion 26. To be done.

The present invention is not limited to the above embodiment, and for example, as shown in FIG. 11, the inside of the capsule 23 is returned from the depressurized state to the atmospheric pressure by the lid 22a against which the capsule 23 is pressed. 22g through hole for air introduction
In addition to the above, an auxiliary through hole 22h having a small diameter and having an opening / closing valve for introducing air may be provided. The auxiliary through hole 22h is
In a state where the pressure inside the capsule 23 in the working unit 20 is reduced, if the toner filling work is stopped for some reason, in order to return the pressure inside the pressure-reduced capsule 23 to the atmospheric pressure, a through hole 22g for introducing the atmosphere is provided. Used instead. Since the auxiliary through hole 22h has a small diameter, the atmosphere flows into the capsule 23 at a low speed, so that the toner is prevented from scattering inside the capsule 23. The opening / closing valve attached to the through hole 22g for introducing the atmosphere may be configured to be able to adjust the flow rate of the atmosphere flowing therethrough, and to control the speed at which the inside of the depressurized capsule 23 is returned to the atmospheric pressure.

[0065]

As described above, the powder filling apparatus of the present invention is
Since the rectifying member is provided in the hopper that stores a predetermined amount of powder, the toner in the hopper can be smoothly flowed down to the nozzle portion. Further, since the drive shaft of the valve body that opens and closes the nozzle portion is inserted through the rectifying member, the valve body can be easily replaced. Since the valve body can buffer the powder flowing down from the nozzle portion when the nozzle portion is opened, there is no possibility that the powder solidifies in the container. The valve body guides the powder input port when the powder input port of the container is fitted into the nozzle part, so that the container and the nozzle part are reliably aligned. .. Further, since the lower end portion of the nozzle portion into which the powder feeding port of the container is fitted is shaped so that the gap between the powder feeding port and the powder feeding port becomes small, the powder enters the gap. Is suppressed. The pusher member provided in the nozzle portion can surely separate the container from the nozzle portion.

[Brief description of drawings]

FIG. 1 is a schematic plan view showing an example of a powder filling device of the present invention.

FIG. 2 is a side view of the powder filling device.

FIG. 3 is an exploded perspective view of a working unit used in the powder filling device.

FIG. 4 is a vertical cross-sectional view of a toner feeder provided on the upper part of the working unit.

FIG. 5 is a cross-sectional view of a valve body provided in the toner supply device.

FIG. 6 is an operation explanatory view of a lower end portion of the toner supply device.

FIG. 7 is a vertical cross-sectional view of the lower portion of the working unit.

FIG. 8 is a schematic configuration diagram of a pressure reducer used in each work unit.

FIG. 9 is a perspective view showing a dust collecting mechanism and a knocker provided in the work station.

10 (a) to 10 (f) are operation explanatory views in each step of the filling device of the present invention.

FIG. 11 is a schematic view showing another embodiment of the working unit used in the present invention.

[Explanation of symbols]

 10 Rotary Filler 20 Working Unit 23 Capsule 24 Table Lifting Mechanism 25 Toner Supplyer 25a Hopper 25b Connecting Pipe 26 Nozzle 26b Nozzle Packing 27 Valve 27a Buffer 27b Guide 28 Valve Drive Shaft 28c Rectifying Core 30 Capsule Lifting 100 Pusher member

Claims (15)

[Claims] 1. A powder filled with powder by allowing the powder to flow into the inside of the container while the pressure inside and outside of the container is decompressed in an equilibrium state, and at the same time to pressurize the outside of the container. Is a device for filling a container with a predetermined amount of powder that flows down into the container, and a nozzle part that is connected to the lower end of the hopper and flows down the powder inside the hopper. And is arranged so as to be able to move up and down with respect to the nozzle portion, and by ascending to fit into the lower end opening portion of the nozzle portion to close the opening portion, and by lowering the lower end opening portion of the nozzle portion. A valve body which is opened, and a valve body drive shaft which is attached to a lower end portion of the valve body and which is vertically slidably inserted through the axial center portions of the hopper and the nozzle portion, At the center of the hopper, the upper and lower parts A rectifying member having a conical shape whose diameter is gradually reduced toward the upper side and the lower side, respectively, is arranged, and the valve body drive shaft is slidably inserted through an axial center portion of the rectifying member. Powder filling device. 2. The powder according to claim 1, wherein the valve element drive shaft has a large diameter in an upper portion that penetrates the inside of the hopper and a small diameter in a lower portion that penetrates the nozzle portion. Filling device. 3. The powder according to claim 1, wherein a drive source for raising and lowering the valve body drive shaft is arranged on the hopper, and the drive source and the valve body drive shaft are removable. Body filling device. 4. A container filled with powder is depressurized in equilibrium between the inside and the outside of the container, and the powder is made to flow down into the container through a powder inlet of the container. A device for filling powder into a container by pressurizing, the hopper storing a predetermined amount of powder flowing down into the container, and the hopper connected to the lower end portion of the hopper. A nozzle portion having a lower end portion fitted with an input port for causing powder in the hopper to flow downward, and a nozzle portion which is arranged so as to be capable of moving up and down with respect to the nozzle portion, and a concave end opening of the nozzle portion when being raised. A valve body that is fitted into a portion to close the opening and then lowers to open the lower end opening of the nozzle, and the valve body is attached to the lower end, and the shaft center of the hopper and the nozzle Part is slidable vertically A valve body drive shaft, wherein the valve body has an upper cushioning portion in the shape of a truncated cone whose diameter is gradually reduced toward the upper side so that the powder flowing down from the nozzle portion collides with the outer peripheral surface; A lower guide portion having a truncated cone shape whose diameter gradually decreases toward the lower side so as to guide the powder input port of the container by the outer peripheral surface. apparatus. 5. The powder filling apparatus according to claim 4, wherein the cushioning portion of the valve body is provided with a packing which is brought into pressure contact with a lower end opening of the nozzle portion. 6. From a state in which the inside and the outside of the container filled with the powder are decompressed in an equilibrium state, the powder is made to flow into the inside of the container through a powder inlet of the container, and at the same time the outside of the container is closed. A device for filling powder into a container by pressurizing, the hopper storing a predetermined amount of powder flowing down into the container, and the hopper connected to the lower end portion of the hopper. A nozzle part having a charging port fitted to the lower end part to let the powder in the hopper flow downward, and a nozzle part that can be moved up and down with respect to the nozzle part, and the lower end opening part of the nozzle part can be raised. A valve body that is fitted into a valve to close the opening and lower to open the lower end opening of the nozzle, and the valve body is attached to the lower end, and the hopper and the axial center of the nozzle are provided. Is slidable vertically A valve body drive shaft, wherein the valve body has a truncated cone shape whose diameter is gradually reduced toward the upper side so that the powder flowing down from the nozzle section collides with the outer peripheral surface. There is an upper cushioning part fitted with a packing that is pressed against the lower end opening, and the cushioning part is a fixed outer diameter part that is fitted into the nozzle part adjacent to above the fitted packing. The powder filling device is characterized by being provided with. 7. A container filled with powder is depressurized in equilibrium between the inside and the outside of the container, and the powder is made to flow down into the container through a powder inlet of the container, and at the same time the outside of the container is closed. A device for filling powder into a container by pressurizing, the hopper storing a predetermined amount of powder flowing down into the container, and the hopper connected to the lower end portion of the hopper. A nozzle part having a charging port fitted to the lower end part to let the powder in the hopper flow downward, and a nozzle part that can be moved up and down with respect to the nozzle part, and the lower end opening part of the nozzle part can be raised. A valve body that is inserted into the valve body to close the opening portion and lower to open the lower end opening portion of the nozzle portion; and a packing fitted to the valve body so as to be pressed against the nozzle portion, The valve body is attached to the lower end, and the hopper is And a valve body drive shaft that is inserted through the axial center portion of the nozzle portion so as to be slidable in the vertical direction. The valve body is configured so that powder flowing down from the nozzle portion collides with the outer peripheral surface. An upper shock-absorbing part, which has a truncated cone shape in which the diameter gradually decreases toward the upper side, and packing is fitted to the lower part,
A powder filling device, comprising: a lower guide portion provided adjacent to the packing, the shoulder portion having a diameter gradually increasing toward the lower side. 8. From a state in which the inside and the outside of a container filled with powder are decompressed in an equilibrium state, the powder is made to flow into the inside of the container through a powder inlet of the container, and at the same time the outside of the container is closed. A device for filling powder into a container by pressurizing, the hopper storing a predetermined amount of powder flowing down into the container, and the hopper connected to the lower end portion of the hopper. A nozzle part having a charging port fitted to the lower end part to let the powder in the hopper flow downward, and a nozzle part that can be moved up and down with respect to the nozzle part, and the lower end opening part of the nozzle part can be raised. A valve body that closes the opening by closing the opening and lowers the lower end opening of the nozzle, and the valve so that the valve body rises to press the lower end opening of the nozzle. The packing fitted to the body and the valve body are A valve element drive shaft that is vertically slidably inserted through the shaft center portion of the hopper and the nozzle portion, and the lower end opening of the nozzle portion of the packing is closed by the lifting of the valve element. The powder filling device is characterized in that the position is below the powder charging port of the container fitted to the nozzle portion. 9. From a state in which the inside and the outside of the container filled with the powder are decompressed in an equilibrium state, the powder is made to flow into the inside of the container through the powder inlet of the container, and at the same time the outside of the container is closed. A device for filling powder into a container by pressurizing, the hopper storing a predetermined amount of powder flowing down into the container, and the hopper connected to the lower end portion of the hopper. A nozzle part having a charging port fitted to the lower end part to let the powder in the hopper flow downward, and a nozzle part that can be moved up and down with respect to the nozzle part, and the lower end opening part of the nozzle part can be raised. A valve body that is inserted into the valve body to close the opening portion and lower to open the lower end opening portion of the nozzle portion; and a packing fitted to the valve body so as to be pressed against the nozzle portion, The valve body is attached to the lower end, and the hopper is And a valve body drive shaft that is inserted through the axial center portion of the nozzle portion so as to be slidable in the vertical direction. The valve body is configured so that powder flowing down from the nozzle portion collides with the outer peripheral surface. An upper buffer portion having a truncated cone shape that gradually decreases in diameter toward the upper side, and a truncated cone shape that gradually decreases in diameter toward the lower side so as to guide the powder inlet of the container by the outer peripheral surface. A lower guide portion that is separable from the cushioning portion, and the packing is sandwiched between the two, and the outer peripheral portion has a flat plate shape extending outwardly from the cushioning portion. The powder filling device is characterized in that 10. A guide portion of the valve body is provided with a protrusion projecting upward in an axial center portion, and a concave portion into which the protrusion is fitted is formed in the axial center portion of the buffer portion. 10. The packing is fitted in a state in which the packing is in close contact with the protrusion.
The powder filling device according to 1. 11. The powder filling apparatus according to claim 9, wherein a projection that is sharpened so as to bite into the packing is provided on a contact surface of the cushioning portion of the valve body with the packing. 12. From a state in which the inside and the outside of a container filled with powder are decompressed in an equilibrium state, the powder is made to flow into the inside of the container through a powder inlet of the container, and at the same time the outside of the container is opened. A device for filling powder into a container by pressurizing, a hopper for cutting and storing a predetermined amount of powder flowing down into the container, and a hopper connected to a lower end portion of the hopper. The nozzle is fitted to the lower end of the powder charging port to let the powder in the hopper flow downward, and the nozzle is arranged so as to be able to move up and down with respect to the nozzle, A valve body which is fitted into the lower end opening to close the opening and lowers to open the lower end opening of the nozzle portion, and the valve body is attached to the lower end portion of the hopper and the nozzle portion. The shaft center can be slid vertically. Comprising a valve body drive shaft are inserted, the powder filling apparatus, characterized in that the lower end portion of the nozzle portion to which the particles inlet of the container is fitted is in constant outer diameter. 13. A nozzle packing is provided at an upper portion of a lower end portion of the nozzle portion having a constant outer diameter, the upper end surface of a powder feeding port of a container fitted into the lower end portion of the nozzle portion being in pressure contact with the lower end portion. 12. The powder filling device according to item 12. 14. From a state in which the inside and the outside of the container filled with the powder are decompressed in an equilibrium state, the powder is made to flow into the inside of the container through a powder inlet of the container, and at the same time the outside of the container is closed. A device for filling powder into a container by pressurizing, wherein a hopper for storing a predetermined amount of powder flowing down into the container and a powder input port of the container are fitted to a lower end portion of the container. A nozzle portion that is detachably connected to the lower end portion of the hopper so as to allow the powder in the hopper to flow downward, and a nozzle portion that is arranged so as to be able to move up and down with respect to the nozzle portion. A valve body which is fitted into the lower end opening to close the opening and lowers to open the lower end opening of the nozzle portion, and the valve body is attached to the lower end portion of the hopper and the nozzle portion. The shaft center can be slid vertically. Powder filling apparatus having a, a valve body driving shaft in communication. 15. From a state in which the inside and the outside of a container filled with powder are decompressed in an equilibrium state, the powder is made to flow into the inside of the container through a powder inlet of the container, and at the same time the outside of the container is opened. A device for filling powder into a container by pressurizing, a hopper for storing a predetermined amount of powder flowing down in the container, and a hopper connected to a lower end portion of the hopper. A nozzle part having a charging port fitted to the lower end part to let the powder in the hopper flow downward, and a nozzle part that can be moved up and down with respect to the nozzle part, and the lower end opening part of the nozzle part can be raised. A valve body that is fitted into a valve to close the opening and lower to open the lower end opening of the nozzle, and the valve body is attached to the lower end, and the hopper and the axial center of the nozzle are provided. Is slidable vertically The valve element drive shaft is fitted in the nozzle portion so as to be slidable in the vertical direction, so that the valve element drive shaft is brought into contact with a portion of the container extending upward from the powder feeding port and presses the portion downward. A powder filling device comprising: a pressing unit that is urged downward.