JP4258649B2 - How to supply powder - Google Patents

Description

The present invention supplies powder, granular material, granular material, etc. (hereinafter collectively referred to as a powder) from the supply unit to the receiving unit in a determined amount without causing contamination (contamination). It is related with the supply method for this .

In a wide range of industrial fields that handle foods, pharmaceuticals, chemicals, etc., many types of powders are used as raw materials for manufacturing products.
For example, the powder is shipped from the manufacturer in a sealed state in a bag of paper, cloth, etc., and the contractor using the powder contains the powder in a container such as a container or a hopper. The required amount is transferred from this container to other containers according to the situation.

  Normally, the necessary amount of powder is transferred from the supply unit side container to the container, hopper, or other appropriate receiving unit side container, and it is transported to the specified location, but when transferring from the supply unit to the receiving unit, A chute is used in between, and a chute is used to form a granule input path and to prevent generation of dust.

For example, in the technique disclosed in Japanese Patent Application Laid-Open No. 11-348902, a chute for charging granular material such as an upper chute 34, a lower chute 35 and a charging chute 39 is installed between the granular material supply container 11 and the bag 14. These chutes form a powder channel.
JP 11-348902 A

  If the supply of the granular material is repeatedly performed through the chute, the granular material adheres to the inner wall surface of the chute little by little. Therefore, it is necessary to replace or clean the chute periodically or as necessary. In particular, when supplying multiple types of granular materials with different contents to one receiving container, it is necessary to replace the chute or clean the chute each time. If neglected, foreign particles were mixed and a contamination phenomenon occurred.

  In order to replace or clean the chute, it is necessary to remove the chute from the supply container or the receiving container, or to attach a new chute to the supply container or the receiving container. It was a big one. Further, when the chute is removed, dust is generated and the surroundings are soiled, and the worker may inhale the powder and harm the health.

In view of the above-mentioned problems of the prior art, the present invention directly connects the supply side container and the receiving side container without installing a chute between the supply side container and the receiving side container of the granular material. It is an object of the present invention to provide a method for supplying powder particles that enables quantitative supply of powder particles and continuous supply of different types of powder particles.

  In order to achieve the above-mentioned object, the method of the present invention is provided with a conical discharge part at the lower part of the body part, the lower part of the discharge part is provided integrally with the supply side container as the discharge port, and the lower end is positioned above the discharge port. Separating the upper support base, the lower support base connected to the upper support base, the step of installing the supply side container separated from the lower support base on the fixed base, the discharge port and the receiving side of the supply side container Connect the container inlet directly and supply the powder while measuring, and after separating the supply-side container and the receiving-side container at the outlet of the supply-side container and the inlet of the receiving-side container And a step of removing the adhering particles with an air blow nozzle.

According to the supply method of the granular material of the present invention, the whole container is usually erected, the lower support base used for storage and transport can be separated from the container main body, and the discharge part is below the lower end position of the upper support base 7 So that the powder supply unit is constituted by the container from which the lower support is separated, the container on the side for receiving the powder is placed at a predetermined position, and the discharge port of the container and the receiving side By connecting the container inlet directly, it is possible to supply a determined value while measuring. And after supply of a granular material, a supply side container can be erected by connecting a lower support stand and an upper support stand.

  In addition, since a chute that forms a charging path is not required between the supply-side container and the receiving-side container, there is no work for exchanging or cleaning the chute, and the powder supply work can be performed efficiently. , Do not contaminate the powder or wasteful consumption. Moreover, the granular material adhering to an opening | mouth part can be removed by air-blowing the discharge port 4 of the supply side container 1 and the insertion port 17 of the receiving side container 14 after supply of a granular material.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a container constituting a supply part of a granular material used in the method of the present invention . A container having a structure capable of containing and discharging a granular material, a container 1 such as a hopper is a barrel. A conical discharge part 3 is formed at the lower part of the main part 2, a powder outlet 4 that can be opened and closed by a valve 10 is provided at the lower end of the discharge part 3, and two parts are provided at the upper part of the supply side container 1. An opening / closing port is provided, and at least one of the opening / closing ports is used as the powder inlet 5.

  For example, an upper support base 7 including four support legs 6 arranged in a square shape is integrally provided at the lower portion of the supply side container 1, and a lower support base 8 is installed on the upper support base 7 from below. In a normal state, the entire container 1 is erected and supported. The lower support base 8 has the same shape as the upper support base 7, and the upper end portions 9 a (indicated by dotted lines) of the legs 9 of the lower support base 8 are inserted into the support legs 6 of the upper support base 7. By doing so, the upper support base 7 and the lower support base 8 can be connected.

  Further, as shown in FIG. 2, the upper end portion 9 a of the leg 9 can be separated by being removed from the support leg 6. Since the discharge port 4 is positioned above the lower end of the lower support base 8 in a normal state, the entire container 1 can be erected. Then, as shown in FIG. 2, the lower support base 8 is separated from the upper support base 7, so that the lower portion of the discharge unit 3 protrudes below the upper support base 7.

  A cone type valve 10 capable of opening and closing the discharge port 4 is installed in the container 1, and a rod 11 is connected to the valve 10 in the vertical direction. The rod 11 protrudes above the container 1 through the center of the container 1, and the discharge port 4 is normally closed by the valve 10, but the rod 11 is raised and lowered in a vertical direction by an appropriate means. Open and close. Further, the discharge port 4 is covered with a cap 12 from the outside.

The container 1 on the granular material supply unit side used in the present invention has the above-described configuration. Next, a case where the granular material is supplied to the container on the receiving unit side using the supply side container 1 will be described.
As shown in FIG. 3, the container 1 is conveyed from a storage place to the discharge position of a granular material using suitable conveyance apparatuses, such as a roller conveyor and a belt conveyor which are not shown in figure. 2 and 3, the lower support base 8 is removed from the upper support base 7, the cap 12 covering the discharge port 4 is removed, and the upper support base 7 is a fixed base (not shown). Once installed, the container 1 itself is placed on a fixed base.

  A valve control device 13 is provided above the stationary position of the container 1, and a container 14 on the granular material receiving side is conveyed below the container 1, and an elevator device 16 is provided via a measuring device 15 such as a load cell or an electronic balance. Installed on top. The receiving-side container 14 has the same structure as that of the supply-side container 1 described above, but may be a container having another structure.

  The caps 19 closing the powder inlet 17 and the dust collector 18 at the upper part of the container 14 are respectively removed, and the entire receiving side container 14 is lifted by the lifting device 16, and the outlet 17 and the supply side container 1 are discharged. The outlet 4 is directly connected, and a known dust collecting device 20 is attached to the dust collecting port 18 (see FIG. 3d).

  An operating part 21 for raising and lowering the rod 11 is installed at the lower part of the valve control device 13. The operating part 21 is lowered by the cylinder 22, the head 23 at the upper end of the rod 11 is gripped, the rod 11 and the valve 10 are raised by pulling up the operating part 21, the discharge port 4 is opened, and the granular material is placed in the container 14. Supply in. During the supply of the granular material, the dust collecting device 20 exhausts the inside of the receiving side container 14, and simultaneously collects the dust so that the granular material does not flow out.

  The weight of the receiving-side container 14 itself is weighed in advance, and when the weight of the granular material supplied into the container 14 reaches a predetermined value, the rod 11 and the valve 10 are lowered by the actuating part 21 and the discharge port 4 is opened. Close and stop supplying powder.

  If supply of a granular material is stopped, as shown to Fig.4 (a), the receiving side container 14 will be lowered | hung a little. And the air blow nozzle 24 is attached to the discharge port 4 of the supply side container 1 and the input port 17 of the receiving side container 14, and the granular material adhering to the opening part is removed. At this time, the operating portion 21 of the valve control device 13 is moved away from the rod head 23 and returned to a fixed position, and the dust collecting device 20 is removed from the dust collecting port 18.

  Thereafter, the receiving-side container 14 is lowered to a predetermined position, the cap 19 is put on the input port 17 and the dust collecting port 18 and conveyed to another position. The discharge port 4 of the supply side container 1 is covered with a cap 12, and the lower support base 8 is connected to the upper support base 7 and transported to another place in an upright state.

  In manufacturing a product, a plurality of types of powders having different content components are mixed at a determined weight. In such a case, the container 14 that has received a certain type of granular material is moved to the supply-side container 1 in another location by using the transport device, and another type of granular material is charged, What is necessary is just to convey the supply side container 1 to the receiving side container 14 set | placed in the same position after throwing a granular material, and just to throw in another kind of granular material.

  The raising and lowering of the receiving container 14 by the lifting device 16, the lifting and lowering of the valve 10 by the valve control device 13, the measurement of the supply weight by the measuring device 15, the opening and closing of the discharge port 4, etc. are managed by a computer and can be automatically operated. It has become. The valve control device 13 can use a known technique, for example, a lifting device 7 composed of a lifting member 8 and a lifting mechanism 9 shown in Japanese Patent Application Laid-Open No. 11-100091 provided by the applicant of the present application.

  Furthermore, not only the discharge port 4 is opened and closed by raising and lowering the valve 10 by the valve control device 13, but, for example, a damper that can be opened and closed by a cylinder is attached to the discharge port 4 so as to supply and stop the granular material. It may be. The opening / closing means of the discharge port 4 is not questioned as long as it can supply a granular material having a determined weight. Further, when a container other than that shown in the drawing is used as the container 14 on the powder particle receiving side, for example, when a container having only one input port 17 is used without having a dust collection port, an appropriate means is provided at the input port. It is necessary to install a dust collector.

  The present invention can efficiently supply powder without causing contamination in the industry that handles various types of powder, eliminates generation of dust, and wastes powder. Therefore, the work load can be reduced and the work efficiency can be improved.

It is a front view of the container by the side of the granular material used for this invention. It is a front view of the state which removed the base of the container by the side of the granular material used for the present invention. It is a figure which shows the continuous operation | movement which supplies a granular material from the supply side container to the receiving side container. It is a figure which shows the continuous operation | movement of the processing state of the container by the side of supply after receiving granular material, and the container by the side of receiving.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Supply side container 2 Trunk body 3 Conical discharge part 4 Discharge port 5 Granule inlet 6 Support leg 7 Upper support stand 8 Lower support stand 9 Leg 10 Valve 11 Rod 12 Cap 13 Valve control device 14 Receiving side container 15 Weighing device 16 Lifting device 17 Input port 18 Dust collecting port 19 Cap 20 Dust collecting device 21 Rod operating unit 22 Cylinder 23 Rod head 24 Air blow nozzle

Claims (1)

A lower part of the body part is provided with a conical discharge part, and a lower end of the discharge part is provided integrally with a supply-side container as a discharge port, and a lower end is connected to the upper support table and the upper support table positioned above the discharge port. The step of separating the lower support base, the step of installing the supply side container with the lower support base separated on the fixed base, the outlet of the supply side container and the input side of the receiving side container are directly connected, and the powder is measured while measuring. A step of supplying granules, and a step of removing powder particles adhering to the outlet of the supply-side container and the inlet of the reception-side container with an air blow nozzle after separating the supply-side container and the reception-side container; The supply method of the granular material which consists of.

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