JPS6151725B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic method for weighing compounded materials, which makes it possible to accurately measure the compounding of a plurality of types of materials consisting of liquids or powders in a relatively short period of time.

In the dyeing industry, it is customary to perform sample dyeing before performing large-scale dyeing. The process of mixing the three primary colors of red, blue, and yellow and white as adjustment colors to form a color sample for this sample dyeing is generally called "color matching." Traditional color matching work consists of red,
From each beaker containing monochromatic liquid dyes of blue, yellow, and white, an amount of dye according to a predetermined recipe was measured using a pipette that was aspirated by mouth.
This was done entirely by hand by transferring the mixture to a beaker. According to this conventional color matching method, the ingredients are measured by eye, so it is difficult to confirm whether the weighed ingredients match the prescription, and the color matching of the same color after a while is not possible. There are drawbacks such as difficulty in making samples. Also,
In order to complete the work in a short time, it is necessary for experienced and skilled workers to work quickly and with their intuition.
Color matching can be done more than 700 times a day, and the amount of effort and time spent on it is enormous.

In order to eliminate the drawbacks of the conventional blending method as described above, the present invention introduces the materials to be blended from tanks storing them by type to metered supply pumps arranged by type and range, respectively.
A prescription card containing the ingredients to be mixed by type and range is inserted into an automatic measuring device, and the metering pump is operated from a large capacity range to a small capacity range based on a command from the automatic measuring device. The operations are performed in the same order, and the same operations are performed in the order of the types written, and the materials discharged from each metering pump are stored in a mixing container placed on the measuring section of the automatic measuring device, and the measured value is The automatic weighing device compares the measured value for each range with the set value written on the card, and if the measured value for each range is within the allowable error range, the metering pump is operated based on the next range. The present invention provides an automatic weighing method for mixed materials, in which a plurality of types of materials having a desired blending ratio and total weight are stored in the blending container by automatically continuing the feeding operation.

Next, an apparatus for implementing the method of the present invention will be described below based on an embodiment shown in the drawings.

In FIG. 1, 1r, 1b, 1y, and 1w are tanks for storing mutually different materials to be mixed, 2r, 2b, 2y, and 2w are material outlet pipes each having one end connected to each tank 1, and 3 are four groups of quantitative supply pumps connected to the other end of each outlet pipe 2. This pump 3 is connected to the tank 1, respectively.
Same number of large capacity pumps 3ar, 3ab, 3ay, 3aw
And medium capacity pump 3br, 3bb, 3by, 3bw,
Consisting of small capacity pumps 3cr, 3cb, 3cy, 3cw and extremely small capacity pumps 3dr, 3db, 3dy, 3dw, each pump 3 connects the outlet pipe 2 to its suction side at one end, and has a respective one connected to its discharge side. A discharge pipe 4 is connected thereto. In the tank 1, when mixing color samples for dyeing using this apparatus, liquid dyes are stored in the tank 1r for red, the tank 1b for blue, the tank 1y for yellow, and the tank 1w for white. In addition, the one-time capacity of the metering pump 3 is the color sample (1
When the total mixing amount (mixed amount per batch) is about 200g, each large capacity pump 3a is 20g, each medium capacity pump 3b is 10g, each small capacity pump 3c is 1g, and each extremely small capacity pump is 0.1g.
Set to range 4 of g. The metering pump 3 is a plunger pump with a variable unit capacity, and the capacity can be changed by changing the set position of the pump pin. A discharge pipe 4 connected to each discharge side of the quantitative supply pump 3 is open above the mixing container 5. This blending container 5 is placed on the measuring section ₁₁ of the automatic weighing device E, and its weight is displayed on the weighing display section 6 of the display main body _E2 , which is separate from the measuring section _E1 .

Card C shown in FIG. 2 is a prescription card that has a display column that shows the types of ingredients to be blended (red, blue, yellow, white) and the four ranges for each type. The total weight of one color sample is 200g, and red is 40g.
g, blue is 64g, yellow is 76g, white is 20g, the number of times is 1 for the red large capacity range 20, the number of times is 3 for the medium capacity range 5, and the number of times is 4 for the small capacity range 1.
, enter the number of times 10 for the minimum range 0.1. Similarly, write the number of times for each range for each type. This prescription card C is the automatic weighing device E.
Insert the card into the card slot 7 provided in the display body _E2 . In the figure, 8 is a power switch that can be switched between automatic and manual, 8p is a pilot lamp, and 9
10 is a push button type start switch, 10 is a control standard setting dial, 11 is a working status lamp, 12 is an automatic recording tape, 13 is a weighing completion lamp/print switch, 14 is an automatic tare switch, and 15 is a paper feed switch. The automatic weighing device E used in this embodiment is, for example, Exacta (commercially available) manufactured by Teijin Engineering.

FIG. 3 is a block diagram showing the operation of the metering pump 3 and automatic metering device E.
The operation of this device will be explained with reference to the same figure.

First, turn on the power switch 8, insert the prescription card C, and turn on the start switch 9. The command for one operation of the large range 20 written in red on the prescription card C is input to the large range pump 3ar of the quantitative supply pump 3. , the same pump 3ar operates once, and the tank 1r
A predetermined amount of liquid dye led from the outlet pipe 2r is discharged into the mixing container 5 of the measuring section _E1 via the discharge pipe 4. The display unit E ₂ , which is electrically connected to the weighing unit E ₁ , compares the above weight with the weight entered on the card, and if the comparison value is less than the sub-setting value, it automatically selects the next highest weight. The operation of the range 5 is commanded, and the medium range pump 3br of the quantitative supply pump 3 is operated continuously for the number of times entered in the same column, and a predetermined amount of liquid dye is discharged into the mixing container 5. Then, as in the case of the large range 20, if the weight is less than the sub-setting value of the medium range, an operation command is issued based on the next small range 1, and in the same way, the small range pump 3
Activate cr, and then do the same with minimal range pump 3.
After operating the same pump 3DR until the weighed value reaches the total set value of the four ranges mentioned above, the next type is operated in the same order, which is automatically repeated.

According to the present invention, which performs weighing in the manner described above, it is possible to automatically measure the compounded materials, and the error thereof can be suppressed to less than the unit capacity of an extremely small range.
In addition, since automatic weighing is used, it is much less tiring than traditional manual methods, and compounding work can be continued for long periods of time.Also, even if one prescription card is used repeatedly, the prescribed compounding can always be made, and even if the same prescription card is used repeatedly, It has the advantage that it can be used for a large amount of color matching cards. Similar effects can also be obtained when powder or granular material is blended.

[Brief explanation of the drawing]

The drawings show an example of a device used to carry out the present invention; FIG. 1 is a schematic diagram of its configuration, FIG. 2 is an example of a prescription card used therein, and FIG. 3 shows the operation of the device shown in FIG. 1. This is a block diagram. 1...Material tank, 2...Outlet pipe, 3...Quantitative supply pump, 4...Discharge pipe, 5...Blending container, E
... Automatic weighing device, E ₁ ... Weighing section, E ₂ ... Weighing display section, 6 ... Weighing display section, 7 ... Card slot, 8 ... Power switch, 8p ... Pilot lamp, 9 ... Start switch, 10... Management standard setting dial, 11... Working status lamp, 12
... Automatic recording tape, 13 ... Weighing completion lamp and print switch, 14 ... Automatic tare switch, 15 ... Paper feed switch.

Claims (1)

[Claims] 1. The materials to be mixed, which are liquid or powder, are guided by type from the tanks to the metered supply pumps arranged by type and range. The filled-in prescription card was inserted into an automatic measuring device, and the metering pump was operated in the same order from a large-capacity range to a small-capacity range according to a command from the automatic measuring device, and the same order of operation was entered. The materials discharged from each metering pump are placed in the mixing container placed on the measuring section of the measuring device, and the calculated value and the set value written on the card are transferred to the measuring device. Therefore, when the measured value for each range is within the allowable error range, by automatically continuing the supply operation by shifting to the operation of the metered supply pump based on the next range, An automatic method for weighing compounded materials, which comprises accommodating a plurality of types of materials having a desired compounding ratio and total weight in the compounding container.