JPH0451401B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention relates to a method for measuring the volume of a powder or granule before supplying it to a filling device at the next stage for packaging or the like. This invention relates to a measuring and filling device for granules.

[Prior art] Conventionally, in volumetric measurement of powder or granules, a volume of powder or granules is supplied to a chamber having a predetermined volume in an amount sufficiently larger than the volume, and the excess powder or granules that rises to the top of the chamber is of,
Generally, the powder is removed by linear reciprocating motion of a cutting member along its upper edge, leaving a constant volume of powder in the cell.

However, when such means are used, excess powder is removed by the reciprocating movement of the scraping member, which not only makes it difficult to speed up the movement, but also makes volumetric measurement more efficient. It is also difficult to respond to the diversification of metrology.

[Problems to be Solved by the Invention] The present invention solves the problems in the measuring and filling apparatus for powder and granular materials, and provides a measuring and filling apparatus that is particularly capable of increasing the efficiency of volumetric measurement and diversifying measurement. This is what I am trying to do.

[Means for Solving the Problems] In order to achieve the above object, the measuring and filling device for powder and granular material according to the present invention includes a plurality of cylindrical powder storage chambers whose axes are horizontal inside a casing. A volume-adjustable cell for measuring the volume of the powder and granular material is recessed in the inner bottom of each of the powder and granular material storage chambers, and a cell that is in contact with the cylindrical inner wall surface is provided in each of the powder and granular material storage chambers. A slotting member that rotates between a position where the top surface of the box is fully open and a position where the top surface of the box is closed to remove the powder and granules on the box is accommodated, and a slotting member is mounted on the bottom of the box to accommodate the cutting operation of the slotting member. A bottom cover that is driven to open and close synchronously is installed, making it possible to change the timing of the operation of each slotting member and bottom cover,
Opening the outlet of the hopper for supplying the powder and granular material to the powder and granular material storage chamber of the casing,
A common feature is that a common delivery funnel having a shutter at the delivery port is provided below the bottom cover of each chamber.

[Operation] In the powder weighing and filling device having the above configuration, the powder to be weighed is sequentially supplied from the hopper to a plurality of powder storage chambers in the casing, and in each powder storage chamber, When the slotting member opens the box, it is supplied and filled into the box together with the powder and granules removed by the previous slotting operation of the slotting member. When the powder and granules that have piled up on the top of the cell are removed by the rotation of the slotting member, the cell is filled with a constant volume of powder and granules, so while the top surface of the cell is closed by the slotting member. The bottom lid at the inner bottom of the container is opened, and a certain volume of powder is sent to the next process.

In this type of measurement, volumetric measurement is performed using cells in multiple powder storage chambers, so the efficiency of volumetric measurement can be improved by setting the volumes of the cells to be the same and measuring alternately. It is also possible to make the volumes of multiple cells different and send individually measured powder or granular material from those cells sequentially, or to open multiple cells at the same time and send out the sum of their volumes. By doing so, it is possible to sequentially perform many types of volumetric measurements, and it is possible to diversify measurements.

[Example] FIG. 1 shows an example of a measuring and filling apparatus for powder and granular material according to the present invention. In this weighing and filling device, an auxiliary hopper 4 is disposed below the outlet 3 of the hopper 2 through which the powder 1 to be weighed and filled is supplied. A pair of cylindrical powder storage chambers 6,
A casing 5 having 6 is arranged. A pair of these powder storage chambers 6, 6 are arranged symmetrically on both sides of a chevron-shaped separation wall 8 facing the outlet 7 of the auxiliary hopper 4, thereby allowing the outlet 7 of the auxiliary hopper 4 to The side surfaces of the cylindrical powder storage chambers 6, 6 are opened. Although the illustrated embodiment shows a case in which two powder storage chambers 6, 6 are arranged side by side on the left and right, the required number can be arranged below the auxiliary hopper 4 if necessary. .

Cylindrical powder storage chambers 6, 6 with horizontal axes
A cell 10 for measuring the volume of the powder or granular material 1 is recessed in the inner bottom of each of the containers. This trout 10
As shown in the figure, it is desirable to provide the auxiliary hopper 4 in the powder storage chamber 6 so as to be slightly biased towards the open side of the outlet 7 of the auxiliary hopper 4.

As shown in detail in Figure 3, the above box 10 is
A movable partition plate 1 on one side is used to arbitrarily adjust the volume within the box 10 or to finely adjust the volume.
1 is provided. This movable partition plate 11 can be manually or automatically adjusted by an adjustment mechanism (not shown) so that the internal volume of the cell becomes a predetermined value.

The scraping member 13, which rotates in contact with the inner wall surface of the powder storage chambers 6, 6, removes the powder and granule 1 that has piled up on the square 10 due to its rotation, and also removes the powder 1 that has risen on the square 10
While discharging the volumetrically measured powder and granular material from the cell to the equipment for the next process, the top surface of the cell is kept closed or separated from the removed powder and granular material, and is controlled by a drive device as appropriate. It is configured to be rotatably driven.

The above-mentioned slotting member 13 is positioned in the powder storage chamber 6 at a position where the upper surface of the square 10 is fully opened (rotated position of the slotting member on the right side in FIG. Although the reciprocating rotational movement is performed between the position where the upper surface of the tray 10 is closed (the rotational position of the left side slotting member in FIG. 1), it may be configured to rotate in one direction. The range of rotation, direction of rotation, etc.
It is appropriately selected in consideration of assisting the proper filling of the powder and granular material into the mass 10.

A bottom cover 14 is provided on the bottom of the square 10 and is driven to open and close in synchronization with the cutting operation of the cutting member 13.
is installed. Also, left and right squares 10,1
0 is provided with a common delivery funnel 16 from which powder and granules are discharged by opening the bottom covers 14, 14.

These bottom lids 14 are opened when the upper surface of the chamber 10 is closed by the slotting member 13, and the powder and granular material whose volume has been measured by the chamber 10 is discharged into the delivery funnel 16. , and then immediately returns to prepare for the next measurement, but the timing of the operation of the left and right slitting members 13, 13 and the bottom covers 14, 14 can be set arbitrarily according to the purpose of use, etc., as described later. It consists of

The lower end outlet 17 of the outlet funnel 16 is provided with an opening/closing shutter 18 for opening and closing it, and is moved between the solid line position and the chain line position in FIG. It is rotationally driven, thereby opening and closing the outlet port 17.

A fixed volume of the granular material sent out from the delivery funnel 16 is sent to an appropriate device at the next stage through the funnel 20, and here a packaging device for packaging the granular material is shown as the device. . That is, below the upper and lower funnels 20, there are many recesses 23, 2 on the circumferential surface.
3. A pair of heater rolls 22, 22 arranged in parallel
are arranged, and are configured to feed films 25, 25 for packaging onto these heater rolls 22, 22 from both sides thereof. Therefore, the film 25 between the heater rolls 22,
Between 25 and 25, the powder and granular material is sent out, and the film 25, 2
The periphery of the powder in 5 is the heater roll 2.
2 and 22.

The upper and lower funnels 20 have heater rolls 22, 22
The heater roll 2 moves up and down in synchronization with the rotation of the heater roll 2.
2, 22 to the position corresponding to the recesses 23, 23, and the delivery port 27
This is to avoid contact with the heater rolls 22, 22.

A drive mechanism that drives each of the above parts, namely a slotting member 13, a movable partition plate 11 for adjusting the volume of the square 10, and a bottom lid 1 for opening and closing the bottom of the square 10.
4. Use a motor, solenoid, pneumatic cylinder, or other appropriate actuator to drive the opening/closing shutter 18 provided at the outlet of the delivery funnel 16, the vertical funnel 20 that moves up and down in synchronization with the rotation of the heater roll 22, etc. Can be done.

In the powder weighing and filling apparatus having the above-mentioned configuration, the powder 1 to be weighed is sequentially supplied from the hopper 2 to the powder storage chamber 6 in the casing 5 via the auxiliary hopper 4. The powder storage chamber 6 is formed into a cylindrical shape with a horizontal axis, and has a cell 1 at its inner bottom.
0 is recessed, the powder 1 previously removed by the cutting member 13 will naturally flow into the inner bottom of the powder storage chamber 6 together with the newly supplied powder 1. 10, and when the cutting member 13 opens the cell 10, it is supplied and filled into the cell 10 (see the powder storage chamber on the right side of FIG. 1).

When the granular material 1 that has piled up on the cell 10 is removed by the rotation of the slotting member 13 (see the granular material storage chamber on the left side of FIG. 1), a constant volume of the granular material is placed in the cell 10. Since it is in the filled state, while the top surface of the box 10 is closed by the slotting member 13, the bottom cover 14 at the inner bottom of the box 10 is opened (see the box on the left side of Fig. 2), and a certain volume of powder is removed. The granules are delivered into the delivery funnel 16. The powder in the delivery funnel 16 is sent to the shutter 18 provided at the delivery port 17.
As a result of the opening of , the water is supplied between the heater rolls 22 and 22 through the upper and lower funnels 20 .

When measuring the volume of such powder or granular material, set the left and right pairs of cells 10 and 10 to the same volume, and
Scraping members 13, 13 alternately about 0, 10
By performing the slicing process, the efficiency of volumetric measurement of the powder or granular material can be improved. In addition, by setting the quantities of both squares 10 and 10 to different quantities, and making the cutting take place alternately, 2
It is possible to proceed with the weighing of different types of quantities at the same time, and further, by proceeding with the weighing of both cells 10, 10 simultaneously, it is possible to measure the quantities corresponding to the sum of the volumes of both cells.

Further, by arranging a plurality of the cells in the horizontal direction, the powder and granular material can be weighed more efficiently.

[Effects of the Invention] According to the measuring and filling apparatus for powder and granular material of the present invention described in detail above, the following effects can be expected.

(1) A plurality of powder storage chambers each having a cell at the inner bottom are provided, and a cutting member is provided in each storage chamber, so that when the powder is supplied, the volume is immediately measured in each storage chamber. So,
The weighing operation is very fast and the weighing efficiency is high.

(2) A square is formed at the inner bottom of the cylindrical surface in the powder storage chamber, and the cutting member is rotated along this cylindrical surface, so that the powder newly supplied to the storage chamber is The powder and granules that were once removed from the top of the square by the slotting member will naturally gather in the square along the cylindrical surface as soon as the slotting member leaves the top of the square.
Filling of the granular material into the chamber is performed extremely smoothly and quickly, and there is no need to feed the granular material into the chamber by any means.

(3) Since the timing of the operation of each slotting member and the bottom cover can be changed, just by changing the timing, you can measure the volume using individual squares or the sum of the volumes using multiple squares. You can easily and freely use different methods for measuring equivalent quantities, and since the volume of each cell can be adjusted, the synergistic effect of these makes it easy to diversify the quantities. can be achieved.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing an embodiment of the weighing and filling device for powder and granular materials according to the present invention, FIG. FIG. 3 is an enlarged perspective view of a cell in the weighing and filling device. DESCRIPTION OF SYMBOLS 1... Powder, 2... Hopper, 4... Auxiliary hopper, 5... Casing, 6... Powder/granular material storage chamber, 10... Mass, 13... Slipping member, 14
... Bottom cover, 16 ... Delivery funnel, 17 ... Delivery port,
18... Shutter.

Claims (1)

[Claims] 1 A plurality of cylindrical powder storage chambers with horizontal axes are provided inside the casing, and a volume-adjustable chamber is installed at the inner bottom of each of these powder storage chambers to measure the volume of the powder and granule. are each recessed and rotated between a position in which the top surface is fully open, in contact with the cylindrical inner wall surface, and a position in which the top surface is closed, in contact with the cylindrical inner wall surface, and a position in which the top surface is closed, removing the powder and granular material on the square. In addition to accommodating each of the slotting members to be cut, a bottom cover that is driven to open and close in synchronization with the slotting operation of the slotting member is attached to the bottom of the box, so that the timing of the operation of each slotting member and the bottom cover can be changed, and the above-mentioned casing The outlet of the hopper for supplying the powder and granular material to the powder and granule storage chamber is opened, and a common delivery funnel having a shutter at the outlet is provided below the bottom cover of each chamber. A measuring and filling device for powder and granular materials.