JPH0720001Y2 - Granule filling device - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is directed to powders, particularly fine powders (hereinafter simply referred to as raw materials).
The present invention relates to a device for filling a container with a container quickly and surely.

(Prior Art) As a powder / granular filling device, there are powder / granular filling devices shown in FIGS. 3 and 4 of Japanese Utility Model Publication No. 59-68225 and Japanese Utility Model Publication No. 1-66027. In this device, the inside of the container is decompressed in advance and then the raw material is supplied to fill the raw material.

(Problems to be Solved by the Invention) The present invention relates to improvements in these conventional devices.
That is, in the apparatus shown in FIG. 3, when the container 1 to be supplied is filled with the raw material, the air in the container 1 must be replaced with the raw material to be filled, but the inside of the container 1 is depressurized. The filling can be performed more efficiently than in the case of normal pressure. However, if there is air in the container 1 to be supplied,
Even if the amount of the air is small, the air is discharged by going backward through the same supply pipe 5 as the raw material, which hinders the smooth supply of the raw material. As a result, the filling time into the supply target container 1 may become long, or in the case of a narrow-mouthed bottle, the air may not be sufficiently replaced, and the lump of air may act as an air valve to prevent the raw material from entering the container 1. there were. Fig. 4 actual exploitation Sho 1-6602
No. 7 is an improved device for that purpose, in which the tip portion of the supply pipe 5 corresponding to the connection portion of the raw material supply target container 1 is a double pipe, and either the inner cylinder part or the outer cylinder part of the pipe is used as the raw material. The air in the supply target container 1 can be quickly discharged to the outside of the container 1 by connecting the other to the pressure reducing device 4 as the supply passage 5A and the air exhaust passage 5B of the air, and the raw material can be quickly filled. It is what you want to do. However, in the apparatus, the supply pipe 5 is a double pipe, so that the diameter of the supply passage 5A becomes thin, and it is greatly affected by friction when passing through the pipe. This phenomenon remarkably appears when the diameter of the container is small, the supply to the container is not smooth, and it takes time to fill the container.

An object of the present invention is to quickly discharge the air in the container to be supplied to the outside of the container and to quickly and surely fill the raw material.

(Means for Solving the Problem) According to the present invention, a closed conical chute having a small downward diameter is connected to an opening of a container to be supplied, and a chute is provided for a supply pipe connecting the container to be supplied and a tank. The inside of the container is to be depressurized in the same manner as the container to be supplied.

(Operation) When the raw material is fed from the tank into the supply target container that has been depressurized by degassing, if the inside of the tank is also depressurized, the fluidity of the raw material decreases and the outflow from the tank Easy to become sluggish. This is because the fluidity of the raw material is impaired by removing the internal air, and the flow out itself becomes smoother when air is interposed in the supply from the tank. However, if the inside of the tank is not deaerated and there is a pressure difference between the inside of the tank and the inside of the supply target container, the raw material can be relatively easily transferred from the inside of the tank into the supply target container.
However, since the air in the tank enters the supply target container together with the raw material, it is necessary to quickly escape only the air from the supply target container. For that purpose, allow a sufficient margin in the inner volume of the supply target container for the supplied raw material, or make the opening of the supply target container sufficiently large, or make the opening larger than the supply pipe. It is necessary to allow good replacement of the raw material with air.

According to the present invention, a chute is provided so as to communicate with the upper side of the container to be supplied, and the inside of the chute is depressurized similarly to the container to be supplied, thereby substantially expanding the internal volume of the container to be supplied, Even if the air in the tank comes in, it is possible to maintain a sufficiently reduced pressure in terms of capacity. When the raw material is supplied from the tank into the chute, the air is instantly diffused in the chute, the raw material is condensed and flows into the supply target container. In this way, the replacement of the raw material with the air is performed in the chute, and the supply target container can be smoothly filled.

Next, a procedure for supplying and filling the raw material from the tank to the container to be supplied will be described. First, a valve is operated to supply and store a predetermined amount of raw material, and then the tank is sealed. Next, the decompression device is operated to decompress the inside of the chute and the supply target container, and after reaching the set pressure, the valve is operated to disconnect the communication with the decompression device. If the tank is opened in this state, the raw material can be sent extremely smoothly from the tank into the container to be supplied due to the pressure difference between the two containers.

(Effect) As described above, according to the present invention, the material to be supplied from the tank can be smoothly and quickly filled into the container to be supplied, and the generation of rat holes and air valves is eliminated. Also,
Since the depressurization in the supply target container and the chute is performed in a state where the raw material is not contained, the raw material powder and granules do not enter the depressurizing device, and clogging of the filter is reduced.

(Example) Next, an example will be described with reference to FIG. The tank 2 is provided below the raw material hopper 3, and further a conical chute 7 having a smaller diameter is provided below the raw material hopper 3 to attach the supply target container 1. These are communicated with each other through supply pipes 5a and 5b, and the container 1 to be supplied is easily attached to and detached from a discharge port 7b on the lower end side of a chute 7 with a fitting 12. In the chute 7, the supply pipe 5a is extended from the supply port 7a, and a short pipe 9 whose lower end reaches the center is provided to prevent the raw material from the supply pipe 5a from being scattered in the chute 7 with the diffusion of air. However, the supply and filling of the supply target container 1 is performed smoothly. A pressure gauge 15 and a deaeration port 7c are provided above the chute 7, and the deaeration port 7c is a deaeration pipe.
5c is connected to an appropriate pressure reducing device 4 such as an electric vacuum pump. A filter (not shown) is attached to the degassing port 7c if necessary. An impact applying device 10 for preventing adhesion is arranged on the outer wall surface of the chute 7. The impact applying device 10 may be a pneumatic type, an electromagnetic type, or any other known type. Inside the tank 2, a cone 11 is arranged opposite to the supply port 2a connected to the supply pipe 5b to smooth the inflow and outflow of the raw material, and a valve 6e for returning the inside of the container to the atmospheric pressure is provided. It is provided. Valve 6a for supply pipe 5a and valve for supply pipe 5b
The deaeration pipe 5c communicating with the pressure reducing device 4 is provided with a valve 6c and a valve 6d for opening to the atmosphere.
b, 6c, 6d, 6e, and the pressure gauge 15 are all connected to the control device 8 to supply the raw material from the hopper 3 to the supply target container 1 through the tank 2 and the chute 7, and the supply target container 1
The inside of the chute 7 and the inside of the chute 7 are depressurized to a set pressure, and the inside of the supply target container 1, the inside of the chute 7 and the tank 2 are returned to the atmospheric pressure. Ie valve
With the valve 6a closed, the valve 6b is opened for a predetermined time to supply a predetermined amount of raw material from the hopper 3 into the tank 2 for storage. At the same time, or after the supply to the tank 2 is completed, the valve
With the valve 6c closed, open the valve 6c to operate the decompression device 4,
The inside of the supply target container 1 and the inside of the chute 7 are depressurized to a set pressure. Next, the valve 6c is closed, the valve 6a is opened, and the raw material in the tank 2 is discharged from the discharge port 2b into the chute 7 and the supply target container 1
Supply in. After that, when the raw material is put into the chute 7, the air in the tank 2 also flows into the chute 7 and is diffused at the same time. At this time, the sum of the volumes in the supply target container 1 and the chute 7 is summed up. By setting the tank to be sufficiently larger than the volume in the tank 2, the inside of the supply target container 1 and the chute 7
Even if the degree of pressure reduction inside is suppressed, the pressure can be maintained in a reduced pressure state as a whole, and the supply into the supply target container 1 can be performed sufficiently smoothly. Further, the raw material can be smoothly supplied into the supply target container 1 without being diffused by the short pipe 9 in the chute 7 under a reduced pressure state.
When the filling into the supply target container 1 is completed in this way, the valve 6d is then opened to introduce the atmosphere, and the chute 7 and the supply target container 1 are brought to atmospheric pressure, and then the fixture 12 is released. 1 is removed from the chute 7. Further, the filter attached to the degassing port 7c is also cleaned by the introduced air.

By directly mounting the valve 6f on the upper surface of the chute 7, it is possible to substantially prevent the raw material from flowing out to the degassing pipe 5c even without a filter.

(Another embodiment) FIG. 2 shows a case in which the bag 1a is used as the container 1 to be supplied, and a case 13 is provided below the chute 7 which has an opening / closing means including a discharge port 7b and which can be closed. A degassing pipe 5i is connected to the casing 13 so that the inside of the casing 13 communicates with the degassing pipe 5c, and
The valve 6i provided on the 5i is connected to the control device 8 so that the housing 13
It is configured to reduce the inside pressure to a set pressure. The bag 1a is attached below the chute 7 with a tightening holder 14 such as a band. The degree of pressure reduction in the casing 13 is set slightly higher than that in the chute 7, whereby the bag 1a is inflated and the raw material can be easily filled.

(Other Embodiments) The cone 11 attached to the tank 2 in the above embodiment, the short pipe 9 attached to the chute 7 and the impact applying device 10 may be omitted depending on the properties of the raw material.

The present invention fills a digestive container with a powdered digestive agent or a container such as a narrow-mouthed bottle with a powdered medicine, and also quantitatively determines the amount of powdered particles in containers of various uses and shapes including bags. It can be used in all areas of supply.

In the claims of the utility model registration, reference numerals are given for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

1 and 2 are schematic explanatory views showing an embodiment of the present invention,
3 and 4 are conventional examples. In the figure, 1 ... Supply target container, 1a ... Bag, 2 ... Tank, 3 ... Hopper, 4 ... Pressure reducing device, 5a / 5b ... Supply pipe, 5c / 5i ... Degassing pipe, 6a / 6b・ 6c ・ 6d ・ 6e ・ 6f ・ 6i ...
… Valve, 7 …… Shoot, 8 …… Control device, 9 …… Short pipe, 10 …… Impact adding device, 11 …… Cone, 13 …… Case,
15 ... It is a pressure gauge.

Claims (5)

[Scope of utility model registration request] 1. A container 1 to be supplied, a tank 2 for storing the powder or granular material in the container 1, a hopper 3 for supplying the powder or granular material to the tank 2, a container 1 to be supplied, a tank 2 and a tank. 2 and the hopper 3 are connected by supply pipes 5a and 5b respectively, and the supply pipes 5a and 5b are provided with valves 6a and 6b, and the inside of the container 1 is connected to the decompression device 4 In the filling device, a depressurizing device is provided between the supply pipe 5a and the container 1 by providing a conical chute 7 having a small diameter downward and communicating with the opening of the container 1 and by providing a deaeration port 7c on the upper part of the chute 7. 4. A powdery or granular material filling device, characterized in that 2. The powdery or granular material filling device according to claim 1, wherein a short pipe 9 which is an extension of the supply pipe 5a is projected in the center of the chute 7. 3. The powdery or granular material filling device according to claim 1, wherein the chute 7 is provided with an impact applying device 10 for preventing adhesion. 4. The powdery or granular material filling device according to claim 1, wherein a cone 11 is arranged in the tank 2 so as to face the upper supply port 2a. 5. A casing 13 which communicates with a discharge port 7c below the chute 7 and includes the discharge port 7c and which can be sealed and opened / closed is provided to hold the bag 1a to be supplied at the discharge port 7c part. At the same time, the inside of the casing 13 and the decompression device 4 are connected by a deaeration pipe 5i, and the powdery or granular material filling device according to claim 1.