JPH0929089A - Apparatus for mixing different kinds of powders - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily mix different kinds of powders by using a weighing container housing the different kinds of powders by necessary quantities as a mixing tank. SOLUTION: A mixing apparatus consists of a weighing container 1 capable of being fed by a feed device 2 and housing two or more kinds of powders different in components by necessary quantities and a conical mixing tank 5 vertically arranged in the feed process of the weighing container 1 in a rotatable manner. The opening surfaces of the weighing container 1 and the mixing tank 5 are integrally connected to each other to form a mixer, which is, in turn, rotated to perform the mixing of the powders.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for mixing a plurality of kinds of powders having different contents in the fields of food, medicine, chemistry and the like.

[0002]

2. Description of the Related Art In the fields of food, medicine, chemistry, etc., a plurality of kinds of powders having different content components are mixed in a predetermined amount to obtain a processing material which is a basis for commercialization. There is. Conventionally, in order to mix different kinds of powder in predetermined amounts,
Transfer the powder from the weighing container containing multiple powders with different content components to the mixer, mix thoroughly with the mixer and mix, then put the mixed powder into the transport container, and then mix the powder in the transport container. He was transferred to the body processing plant.

Specifically, as shown in FIG. 6, a weighing container a capable of accommodating different kinds of powders can be carried by a carrying device b such as a roller conveyor, and one side of the measuring container a along the carrying direction of the measuring container a or A plurality of slicing machines c respectively containing powders having different content components are installed on both sides, and a mixer d is installed in the middle of the conveying device b.

The required amount of powder is put into each weighing container a from each cutting machine c during the transportation, and therefore, the measuring container a needs to be stopped below the selected cutting machine b. is there. To stop the weighing container a, for example,
A stopper (not shown) may be projected to the front surface of the measuring container a from below the rollers forming the conveying device b or from the side surface along the conveying direction of the measuring container a.

At the stop position of the measuring container a, a measuring device e, for example, a cylinder f is provided below the conveying device b.
It is installed so that it can be moved up and down. Scale e is a cutting machine c
However, when the cutting machines c are symmetrically installed on both sides of the weighing container a in the conveying direction, the two cutting machines c on both sides of the symmetry are provided with one weighing machine c between them. Can be used alternately.

A plurality of or a pair of bar-shaped or plate-shaped supporting members g capable of projecting upward through the rollers of the conveying device b are provided on the upper surface of the weighing device e, and when the weighing container a is stopped. When the measuring device e is lifted and the measuring container a is pushed up by the support member g, the measuring container a is lifted away from the conveying device b, and the measuring device e and the charged powder are put into the measuring device e. It is possible to measure the amount of powder by applying the load of.

As the slicing machine c, a screw conveyor is rotatably installed in the lower part of the hopper containing the powder,
A screw feeder that cuts out powder by rotating a screw conveyor with a motor is used. Further, as the transfer device b, a chain conveyor is used in addition to the roller conveyor. In this case, a pair of chains are stretched in a circulating manner using a plurality of sprockets on both sides of the weighing container a in the transport direction, and the weighing container a can be placed on the chain conveyors on both sides and transported.

As shown in FIG. 7, the weighing container a has a valve a2 provided in the lower part of a downward conical hopper a1 and is supported by a girder material a3 assembled in a rectangular shape so that it can stand upright. The material a3 is placed on the transport device b. As shown in FIG. 8, the mixer d is a mixing tank d in which the central portion has a large-diameter body portion and the top and bottom are symmetrical conical shapes.
1 is rotatably supported by a pair of support columns d2, and valves d3 are provided at both upper and lower ends of the mixing tank d1. In order to rotate the mixing tank d1, a rotating shaft d4 projecting from both sides of the central body of the mixing tank d1 is rotatably supported on the upper end of the support column d2 via a bearing, and the rotating shaft d4 uses a motor d5 as a driving source. The entire body can be rotated in the vertical direction by rotating the gear mechanism d6. Such a mixer d
Is widely used for powder mixing.

The measuring container a is stopped below the selected cutting machine c, and a predetermined amount of powder is charged while measuring with the measuring device e. After the required amount of powder is put in from each of the slicing machines c, the measuring container a is sent to above the mixer d by the carrying device b and stopped. Valve a provided at the bottom of the measuring container a
2 is opened, the valve d3 on the upper side of the container body d1 is opened, and the powder is transferred into the mixer d.

After transferring all the powders, the valve d3 is closed and the mixer d is rotated in the vertical direction about the rotation axis d4 to stir and mix the powders. After sufficiently performing the mixing operation, the rotation of the mixer d is stopped, the valve d3 on the lower side of the mixing tank d1 is opened, and the mixed powder is transferred to the transfer container h previously installed below it. The transport container h is transported to another place by using a transport device (not shown) such as a belt or a roller conveyor. The control device automatically manages all the above-described operations such as transportation and stop of the measuring container a, supply and stop of powder by the cutting machine c, and mixing of powder by the mixer d.

[0011]

The above-described conventional mixing apparatus for different kinds of powder has the following problems. When the powder is discharged from the weighing container a to the mixer d, a bridge phenomenon may occur depending on the characteristics of the powder, and it may be difficult to discharge the powder. When discharging the powder from the measuring container a to the mixer d,
The powder remains in the weighing container a, which hinders the weighing accuracy. Dust is generated when the powder is discharged from the weighing container a to the mixer d and when the powder is discharged from the mixer d to the transfer container h, and a sealed discharge mechanism or a dust collecting mechanism is required to prevent the dust from being diffused. Becomes When the powder is discharged from the mixer d, the powder may remain in the mixer d. Since the weighing container a and the transport container h are separately required, it is necessary to transport both the containers a and h, and the entire apparatus becomes large-scale, and both the containers a and h need to be washed when changing the product type. There must be. It is necessary to clean the inside of the mixer d when switching the product type, but it took time to clean.

In view of the above-mentioned conventional technique, the present invention makes it possible to use, as a mixing tank, a measuring container containing a required amount of plural kinds of powders having different contents components, and the mixing container rotatable with the measuring container. It is an object of the present invention to provide a mixing device that facilitates mixing of different kinds of powders by combining and. Another object of the present invention is to provide a mixing apparatus for different kinds of powders, in which the measuring container serves as a mixing tank and a conveying container, and the processes of charging, measuring, mixing and conveying the powders are simplified. is there.

[0013]

In order to achieve the above object, the present invention rotates the mixing tank 5 during the process of conveying the measuring container 1 containing a required amount of plural kinds of powders having different contents. It is installed as much as possible, the opening surface of the measuring container 1 and the opening surface of the mixing tank 5 are aligned with each other, the two are connected to form a mixer, and the mixer is rotated in the vertical direction to enable mixing of powders. is there.

A weighing container 1 which can be carried by a carrying device 2.
Can be supported by a weighing device 4 installed below the transport device 2 so as to be able to move up and down in the stop position, and powder can be supplied from the cutting machine 3 to the weighing container 1 while weighing.
Further, the weighing container 1 can be stably placed on the weighing device 4 mounted on the transfer device 2, and the powder can be supplied from the weighing device 4 to the weighing container 1 while weighing. The mixing tank 5 is a conical body having a large-diameter portion opened, and a valve 6 is provided at the top of the conical body, and the large-diameter portion is vertically rotatable.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, the measuring container 1 can be conveyed by a conveying device 2 such as a roller conveyor or a chain conveyor, and powder having different content components on one side or both sides along the conveying direction of the measuring container 1. It is the same as the conventional mixing device that a plurality of slicing machines 3 accommodating each of them are installed, and the weighing container 1 can be weighed by the weighing device 4 which can move up and down at the stop position. Further, as the weighing container 1, the conveying device 2, the cutting machine 3 and the weighing device 4, conventionally known ones can be used.

In the present invention, the mixing tank 5 is installed in the middle of the conveyance of the measuring container 1 containing the necessary amount of the required powder selected from a large number of powders, and the mixing tank 5 and the measuring container 1 are connected to each other. It is characterized in that the powders are mixed together and mixed, and after the powders are mixed, the measuring container 1 carries the mixed powders to a predetermined position.

As shown in FIGS. 1 and 2, the mixing tank 5 has a conical shape having the same shape as that of the hopper 1a of the weighing container 1, and in the normal state, the large diameter portion having the opening surface is directed downward, The valve 6 is provided on the top of the body. This mixing tank 5 is rotatable between the upper ends of a pair of columns 7 standing upright across the carrier device 2 so as to be vertically rotatable about a rotary shaft 8 attached around the large diameter part. The measurement container 1 and the mixing tank 5 have their opening surfaces aligned,
The outer peripheral portions of both can be connected by a connecting tool 9.

FIGS. 3 and 4 show a known toggle clamp as an example of the connector 9, which includes a clamp 11 having a connecting claw 10 at the tip and a clamp 14 rotatably connected to a rod 13 of a cylinder 12. The bases of the above are rotatably and axially connected to the supporting bodies 15 projectingly provided on the outer periphery of the mixing tank 5. The tip of the rod 13 and an intermediate portion near the base of the clamp 11 are pivotally connected by a clamp 16. The cylinder 12 itself is rotatably connected to an arm 17 protruding from the mixing tank 5.

A plurality of the above-mentioned connecting members 9 are installed on the outer circumference of the large diameter portion of the mixing tank 5, and each cylinder 12 is designed to operate synchronously by the supply or exhaust of air. The connecting claw 10 of each connecting tool 9 is normally open outward. As described above, the measuring container 1 containing a plurality of types of powders is sent to the lower part of the mixing tank 5 by the transfer device 2, and, for example, after being stopped by a known stopper (not shown), the measuring container 1 is raised. For this reason, an elevating device 18 including, for example, a cylinder is installed below the transport device 2, and the elevating device 18 lifts the entire weighing container 1, and the upper surface of the opening of the weighing container 1 and the lower surface of the opening of the mixing tank 5 are installed. And the flange 19 provided on the outer periphery of the opening of the weighing container 1 and the flange 20 provided on the outer periphery of the opening of the mixing tank 5 are aligned with each other.

In this way, the measuring container 1 and the mixing tank 5 are joined together with their opening surfaces aligned with each other, and then the connecting claw 10 is rotated by the cylinder 12 through the clamps 11, 14 and 16 in the direction of the arrow X in FIG. By moving, as shown in FIG. 4, the connecting claw 10 comes into contact with the lower surface of the flange 19 of the measuring container 1, and by connecting the flange 19 and the flange 20 of the mixing tank 5, the measuring container 1 and the mixing tank 5 are connected. And can be integrally connected. In this state, if the rotating shaft 8 is rotated by a motor (not shown) provided on the column 7, the measuring container 1
The mixing machine including the mixing tank 5 and the mixing tank 5 rotates in the vertical direction to stir and mix different kinds of powder. The toggle clamp as the connecting tool 9 is an example, and other connecting tools may be used.

When the mixing of the powder is completed by the passage of a predetermined number of rotations of the mixer or the rotation time,
The measuring container 1 stops rotating while being positioned below the mixing tank 5, and the elevating device 18 rises to support the measuring container 1 from the lower surface. The connection claw 10 is removed from the flange 19 by operating the cylinder 12, the connection state between the measuring container 1 and the mixing tank 5 is released, and the measuring container 1 is lowered by the elevating device 18.
It suffices if the weighing container 1 is placed on the carrier device 2.
Is used to transfer the mixed powder to the processing location.

The required amount of powder is put into the weighing container 1 from each of the cutting machines 3 and the mixing operation is carried out in combination with the mixing tank 5.
For example, if 5 kinds of powders are supplied to several measuring containers 1 and these powders are of the same kind, the content of the powders mixed with the mixing tank 5 will be the same, After that, a different kind of powder may be used. In this case, the residual substance of the previous powder may adhere to the mixing tank 5 a little, so that it cannot be used as it is. For this reason, it is necessary to wash the mixing tank 5, but at the time of washing, the opening surface of the mixing tank 5 faces upward, the washing liquid is put into the inside for washing, and the liquid after washing is discharged by opening the valve 6 and mixing. The inside of the tank 5 may be naturally dried or dried by an appropriate means. Alternatively, compressed air may be blown into the mixing tank 5 to remove the attached powder, and the removed powder may be sucked and discharged from a suction hose connected to the valve 6, for example.

In the above description, the weighing device 4 is installed for each cutting machine 3, and the weighing container 1 is raised to measure the amount of powder supplied. However, the present invention is not limited to this, and one unit is used. It is possible to use the weighing machine 4 of That is, as shown in FIG. 5, the weighing container 1 is placed on the weighing device 4 placed on the carrier 2.
Are stably placed and can be transferred by the transfer device 2. Under the selected cutting machine 3 among the plurality of cutting machines 3, the weighing container 1 and the weighing machine 4 are stopped by, for example, a stopper, and the powder is supplied while weighing. Similarly, the required amount of powder is supplied to each of the other selected slicing machines 3 to accommodate the required powder, and then the weighing container 1 and the weighing device 4 are conveyed to below the mixing tank 5.

The elevating device 18 raises the measuring container 1 and the measuring device 4, and after connecting the measuring container 1 and the mixing tank 5 as described above, only the measuring device 4 is lowered. It is possible to return to a predetermined position by 2 and put another weighing container 1 on it, and perform powder weighing. Mixing tank 5
The measuring container 1 connected to the above may be transferred to the processing place after the mixing of the powder is completed.

In the above description, a series of operations such as cutting out of powder, weighing, carrying and stopping of the weighing container 1, connection of the weighing container 1 and the mixing tank 5, rotary mixing, etc. are automatically and continuously performed by the control device. It can be processed. The reason why the slicing machine 3 is used for supplying the powder is to enable an automated process, and the powder may be supplied to the measuring container 1 manually from a bag containing the powder.

[0026]

[Example] When a required amount of powder is supplied from each slicing machine 3 and a weighing container 1 containing a total amount of 60 kg of powder is connected to a mixing tank 5 to form a mixer and rotated. ,
When the rotation speed for 1 minute was 30 rpm, the mixing of the powder was completed in 4 minutes.

[0027]

As described above, according to the present invention described above, the measuring container 1 containing a plurality of kinds of powders can be used as a mixing tank by itself, and is integrated with the hopper-shaped mixing tank 5. As a result, a mixer is formed, and different powders can be mixed. Therefore, since there is no discharge process from the measuring container 1 to the mixer, it is not necessary to consider the discharge inhibition of the powder due to the bridge phenomenon or the like. Since the weighing container 1 containing the powder for processing after mixing can be used as it is as a transport container, the whole structure can be simplified and labor saving in the mixing process can be achieved. Since the powder is not discharged during the mixing process, dust is not generated, and therefore, a closed discharge mechanism, a dust collecting mechanism, etc. are not required, and the mixing tank 5 has a conical shape with one side open, so that a cleaning operation is possible. Can be performed easily in a short time.

[Brief description of drawings]

FIG. 1 is a front view showing the entire device of the present invention.

FIG. 2 is a front view of a mixer formed by a measuring container and a mixing tank.

FIG. 3 is an open state and a front view showing an example of a connecting tool between a measuring container and a mixing tank.

FIG. 4 is a front view showing a state in which a measuring container and a mixing tank are connected by a connecting tool.

FIG. 5 is a front view showing another example of the measuring state of the measuring container.

FIG. 6 is a front view showing an example of a conventional mixing device.

FIG. 7 is a front view of a weighing container used in a conventional mixing device.

FIG. 8 is a front view of a mixer used in a conventional mixing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Measuring container 2 Conveying device 3 Cutting machine 4 Metering device 5 Mixing tank 6 Valve 7 Strut 8 Rotating shaft 9 Connecting tool 10 Connecting claw 11 Clamp 12 Cylinder 13 Cylinder rod 14 Clamp 15 Support 16 Clamp 17 Arm 18 Lifting device 19 Flange 20 Flange a Measuring container b Conveying device c Cutting machine d Mixer e Measuring instrument f Cylinder g Supporting member h Conveying container

Claims (4)

[Claims] 1. A mixing tank 5 is rotatably installed during a conveying process of a measuring container 1 containing a required amount of a plurality of kinds of powders having different content components, and the opening surface of the measuring container 1 and the mixing tank 5 are installed. The mixing device for different powders is characterized in that the opening faces of the two are matched, the two are connected to form a mixer, and the mixer is rotated in the vertical direction to enable mixing of the powders. 2. The weighing container 1 that can be carried by the carrying device 2 can be supported by a weighing device 4 installed below the carrying device 2 so as to be able to move up and down at a stop position, and the weighing container 1 can be weighed from the cutting machine 3 while weighing. The mixing apparatus for mixing different kinds of powder according to claim 1, wherein the powder can be supplied to the powder. 3. A weighing container 1 is stably placed on a weighing device 4 mounted on a carrying device 2, and powder can be supplied from the cutting machine 3 to the weighing container 1 while weighing. The mixing apparatus for different kinds of powder according to claim 1. 4. The mixing tank 5 is a conical body having a large-diameter portion opened, and a valve 6 is provided at the top of the conical body, and the large-diameter portion is vertically rotatable. 2. A mixing device for different kinds of powders described in 2 and 3.