JP2003165117A - Apparatus and method for preparing powder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To completely exclude a human error of making a mis-selection in the work of a powder preparing process exposed to contamination such as dust, adhesion or the like, wherein a large number of powder containers and powders to be contained in are stored and prescribed powder containers are selected from them and arranged near a metering unit for compounding and metering. <P>SOLUTION: The method for preparing the powder comprises the steps of fastening a punch card 11 in which container information is assigned, to the powder container 6, reading and identifying the card 11 by a card reader 13 provided at a disposing position near the metering unit, and eliminating the advancing to next working sequence at the time of a mistake, thereby excluding a stupid mistake. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder blending apparatus and a blending method for connecting a simple punch card to an on-site container containing a powder material to prevent misplacement of the container.

[0002]

2. Description of the Related Art Conventionally, there is a compounding process in which a chemical is added to rubber as one of the compounding processes using a small amount of various kinds of powder materials. ing. In such a weighing process, an automatic weighing system is used for blended products that have a relatively large number of production lots and a large amount of input. The measurement method used is

For example, as disclosed in Japanese Laid-Open Patent Publication No. 59-162935, a small amount of chemicals is stored in a stocker, and a turntable is used to eliminate the manual work except for the weighing process and to perform automatic mechanization, thereby artificially weighing. It aims to eliminate such mistakes. However, since it is difficult to obtain an economic effect due to the increase in the number of trace chemicals used for this and the replenishment and storage in the stocker, it is more convenient to add human labor, but a mechanism with a low fixed cost that can eliminate human error is preferred. Is used for.

In this hand weighing system, various kinds of small amounts of chemicals are stored in a dispensing container and stored and managed in a storage space, from which the required chemicals used for a predetermined content can be dispensed easily in front of the measuring instrument. It can be taken out and weighed manually by placing it at a predetermined position.

In this system, various improvements have been made up to now, for example, the excess or deficiency of the measured value is monitored, and when there is an abnormality, it is not possible to move to the next step. In response to the instruction, we give a weighing instruction and instruct the lamp to light up at the target position, and even if you put your hand in the wrong container, an alarm will sound, etc. is there.

However, the above system still has the following problems that cause a pocket error. It is a mistake to put the container in the designated position, that is, to make a mistake.
Originally, it was not possible to obtain a general-purpose technology that could directly and economically identify powders with a wide variety of properties, and it relied on the five senses of the operator. This could not exclude the possibility of human error.

Although various instrumentation techniques can be considered for these identification techniques, for example, the magnetic ID sensor method has a high investment cost and is not economical, and the bar code or magnetic card method causes dust, adhesion, coloring, etc. Since it was vulnerable to stains, was not suitable for rough handling, and lacked reliability in identification, it was not possible to adopt a satisfactory method, and it had the risk of the above-mentioned Pokamis.

[0008]

SUMMARY OF THE INVENTION In view of the above problems, the present invention is not limited to a high-performance method, and a powder containing a powder material in a powder processing step in which dirt such as dust or non-adhesion is present. An object of the present invention is to provide a highly reliable and simple technique capable of eliminating a mistaken mistake in handling a container body.

[0009]

In the powder blending method according to claim 1, which solves the above problems, the powder is contained and stored in each container body, and the container body containing the required powder is placed near the blending site. A powder blending method in which a correctness check sequence is arranged and a small amount of powder is dispensed and weighed, wherein the correctness check sequence is a metal punch card with container information attached to the container body, which is integrally stored and is prepared at the time of dispensing. The punch cards are arranged in the vicinity of the above, and the punch cards are transferred to the enrollment case provided with the card readers arranged in each case to judge the correctness of the arranged container body. In particular, it is highly resistant to dust environments, highly reliable, simple, and easily expandable.

According to this, at the arrangement position around the mixing point,
By inserting a metal punch card attached to the container into the enrollment case provided with the containers arranged, it is possible to enter the unique information of the arranged container, so it is a container with a layout instruction at this position. Whether it is true or false can be determined. Also, by using a metal punch card, functional damage to the card can be minimized.

According to the powder blending method of claim 2, claim 1
In the above, the card reader naturally drops the punch card transferred to the upper receptacle of the enrollment case from the upper receptacle to the bottom, and reads the punch holes in the vertical rows of the punch card during this period. .

According to this, when the punch card is always transferred to the enrollment case, the presence or absence of the punch holes in the vertical row passing in front of the sensor provided in the enrollment case is naturally dropped from the upper receptacle to the bottom. The card can be read during the movement.

In the powder blending apparatus according to the third aspect, the powder is contained and stored in each container body, and the container body containing the desired powder is arranged in the vicinity of the blending location for correctness and error confirmation and the powder is dispensed and weighed. In the compounding device, the correct / wrong confirmation array is a punch card to which container information attached to each of the container bodies is assigned,
A card reader for reading the punched card provided at each position arranged in the vicinity of the preparation location is provided.

According to this, an effect equivalent to that of the powder blending method according to the first aspect can be obtained, that is, a metal punch card is attached to the container, and the array position around the blending point is obtained. Since the card reader is equipped with a card reader for reading punch cards, the container specific information can be input. As a result, it is possible to compare and determine the required container information that is instructed at the arrangement position, and thus it is possible to make a correctness determination.

According to a fourth aspect of the present invention, there is provided the powder blending apparatus according to the third aspect.
In the punch card, at least one vertical row of punch holes determines the timing for detecting the presence / absence of holes in other vertical rows, and the total number of open holes in at least one vertical row of the other vertical rows is always an even or odd number. There is a hole for adjustment so that

According to this, since the sensor for detecting the presence / absence of the punch hole has the detection width to detect the presence of the hole,
Since it is possible to fix the moment when the detection data can be reliably picked up at the optimum portion of the width, it is possible to sufficiently follow the fluctuation when the punch card is transferred and dropped. In addition, it is possible to monitor the occurrence of detection errors by defining the conditions for the total aperture.

According to the powder blending apparatus of claim 5, claim 3
Alternatively, in 4, the card reader includes guide means for inserting and inserting the punch card, and buffer means for preventing the punch card from rebounding.

According to this, the posture of the punched card dropping in front of the fixed sensor can be properly guided to reduce the fluctuation of the detection width, and the punching card is prevented from rebounding by the buffering means when the lower end is reached. Therefore, abnormal detection can be prevented.

According to the powder blending apparatus of claim 6,
In, the guide means for inserting the punch card,
A guide groove provided on both sides of the card case with the sensor built therein and a shock absorbing means for preventing the punch card from rebounding are an impact absorbing pad provided at a collision portion on the bottom of the card case.

According to this, since the guide groove is provided on both side surfaces, variations in the width direction of the hole position of the punch card and the detection distance with respect to the detection sensor can be restricted within the allowable value of the detection sensor. A proper gap can be provided. Also, by using a shock absorbing material, it is possible to eliminate jumping because it has excellent repulsion absorption.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a powder blending method and a blending apparatus according to the present invention will be described below with reference to FIGS.
It will be described based on 5. As the powder blending method, the case of dispensing and metering in the blending step (see FIG. 1) that is added to rubber in a small amount and is composed of various powder chemicals will be described.

First, the arrangement process will be described. The present invention is a compounding process using a wide variety of powder materials, especially in a small amount as described above, and since automatic labor saving requires a large amount of investment and the profitability of the investment cannot be expected, human intervention is required in the main part. Effectively structured. However, since a mixing error due to a human error is accompanied by a quality problem, there is a problem of eliminating any mistakes, including mistakes by mistake, and the detailed improvements have been made to constitute the following.

First, the meter 3 and the monitor 4 are arranged in the center,
Faced with this, the container body 6 that holds the powder in a close positional relationship and the booth 7 in which the powder body can be arranged are arranged in advance. In this example, the container bodies 6 are arranged side by side in three rows. 6
There is a booth 7 in some places. In contrast to such a simple structure, the management system 2 is configured to automatically instruct the work procedure to complement the quality of human work and to monitor the Pochamis abnormality.

Next, the powder blending method of the present invention will be described. First, the container bodies 6 arranged according to the above-mentioned automatic instruction.
However, in addition to the conventional manual confirmation that the powder is definitely compatible with the powder to be instructed on the monitor 4, it is improved so that it can be automatically confirmed by using the metal punch card 11 of the present invention.

In this case, when there is a replacement instruction of the container body 6, first, the punch card 11 of the removal container body 6 housed in the enrollment case 14 of the replacement booth 7 is returned to the holder 15 of the extraction container body 6. Next, the removal container body 6 is pulled out together with the trolley 31 and carried out, and then the required container body 6 is carried in and arranged in a predetermined booth 7. At this time, the punch card 11 stored and connected to the holder 15 of the container body 6 after the replacement is transferred to the enrollment case 14 provided in the booth 7. At this time, the booths 14 of the other booths 7 are attached so as not to reach them. By using the punch card 11 devised in this way, it is possible to automatically check whether the replacement container body 6 is a predetermined one or not, in addition to the operator's confirmation.

As a result, the container bodies 6 are definitely arranged, and the monitor 4 displays the content of the required mixture for the next procedure.
As a concrete weighing instruction, the first weighing instruction (material name,
The measured value is displayed. On the other hand, the booth 7 in which the ordered powder is located is lit up with a lamp to guide the operator so that the operator does not make a mistake. The operator dispenses the powder arranged at the lighting position from the container body 6. At this time, if the wrong booth 7 is put in, the monitoring sensor is activated and an alarm is issued, so that the operator can inadvertently call attention to the mistake.

Subsequently, the dispensed powder material is put into a weighing bag placed on the weighing machine 3, and when the weighing is correctly performed within a predetermined weighing range, a screen display and a chime appear, the first weighing is completed, and subsequently, The screen is switched to the second weighing, and the weighing is sequentially repeated in this manner to complete the mixing. If the measured value exceeds the set range, the measuring process will stop, and will be returned to the beginning to start over. The contents of these executions are collected as a result and recorded and managed by the CPU 9.

As described above, in the blending method of the present invention, it is determined whether the container body 6 containing the powder is definitely compatible with the powder to be instructed on the monitor 4 by the metal punch card 11 described later.
Are connected to the container body 6, that is, the container body 6 is individually provided with information, arranged in each booth 7, and the booth 7
By inserting the punch card 11 attached to the container body 6 to be arranged into the card reader 13, the container information is transmitted, and by comparing and collating with the instruction information, the correctness determination can be automatically performed.

Next, the functions of the punch card 11 and the card reader 13 according to the present invention will be described with reference to FIGS. The punch card 11 is designed to be durable and dust-resistant, and can withstand the on-site work of gloved rugged workers in the field, ensuring reliability and requiring no detailed maintenance. A metal flat plate that is suitable for the detection body of the magnetic sensor 21 that is strong against the environment and that has some weight to facilitate scanning by free fall described later is used. In this example, an iron plate having a thickness of 1.5 to 3 mm is used. ing.

Next, the reading sensor 21 is constructed by using the magnetic substance proximity sensor 21 which can endure the above-mentioned dusty environment which is easily contaminated and rough handling and can ensure reliability.

In the punch card 11, the container body 6 and the upper end of the card are connected by a string or the like so that the punch card 11 can be handled integrally without being separated from the container body 6. Holder 15 attached to the container body 6
In addition, the chain system that is easily accommodated in the enrollment case 14 provided in the booth 7 is excellent in flexibility and accommodability and can be suitably attached.

Subsequently, the configuration and structure of the card reader 13 will be described later, and the function and handling will be described here.
First, as the function of the card reader 13 of the present invention, the function of detecting the container information assigned to the punch card 11 and outputting it to a programmable controller (hereinafter referred to as PLC8), and the presence of the punch card 11 that constantly monitors the container enrollment It also has a function to accommodate time.

Next, regarding the method of reading and scanning the punch card 11, first, the container body 6 is arranged at a predetermined position of the mixing position, the punch card 11 accommodated in the holder 15 of the container body 6 is removed, and the punch card 11 is arranged at the arranged position. It is transferred to the enrollment case 14 provided and held in the groove of the receiving port at the top of the case. Then, the punch card 11 is released and dropped by its own weight along the guide grooves 24 on both sides in the enrollment case 14.

This allows the card reader 13 of the present invention to be used.
The reading and scanning function can be detected by the sensor 21 by scanning the presence or absence of holes by dropping all the holes in the column of the punch card 11 passing through the front surface of the sensor head. That is, in the enrollment case 14, as shown in FIGS. 2 and 3, the proximity sensor 21 is fixedly provided at the upper end of the case below the receiving port, and the punch card is guided by the grooves 24 on both side surfaces of the case and falls directly below. The reference numeral 11 drops on the front surface of the proximity sensor head through a column of punch holes, reaches the bottom of the enrollment case 14, and stops without bouncing on the shock absorbing pad 23.

Next, the detection state of the card 11 during the fall and the data read content will be described with reference to the operation chart of FIG. In this diagram, the linearity is on the valley side and the OFF line when the proximity sensor 21 is not detected when the punch card 11 has a hole and is passing in front of the sensor. I am doing it. First, in FIG. 2, when the punch card 11 is inserted into the upper entrance of the enrollment case 14 and starts to fall naturally, the proximity sensor 21 built in the upper part of the enrollment case 14 starts to detect the lower side of the card, and the left end of FIG. The scanning signal line rises to ON.

Further, as the card 11 drops and the scanning of the sensor 21 progresses, the sensor 21a in the row A, which is in the upper row first, moves to the right in the figure, enters the non-detection state at the A0 hole, and the scanning signal. When the line goes down to the valley, that is, just near the center of the A0 hole that is in the OFF state, the B0 hole of the punch card 11 starts to pass to the B-row sensor 21b side to enter the non-detection state, and the scanning signal line falls to the valley. Enter the OFF state. The scanning signal line of the B column is configured to read the ON / OFF state of the scanning signal line of the A column at the falling timing of falling from the peak to the valley, and the OFF state is shown in this figure.

In this way, the scanning is further advanced to the right in the figure, and A
1 or later sequentially ON, OFF, OFF, ON, ON, OFF
Indicates to read. When the card 11 reaches the lower end after passing A6, the front of the sensor 21 is blocked by the upper side of the card to be in the detection state and the scanning signal is kept ON.

ON / OFF of the above-described sensor 21a in the row A
In this example, the state signal is inverted and replaced with 0 and 1, and binary numbers 0 and 1 are assigned to the data memory that is bit configured by PLC8, and it is always carried to the lowest digit and read. Then, in the figure, 1011001
Becomes

In this way, the scanning progresses, the reading count becomes 7 in the figure, and the reading ends. The number of 1's in the read column A signal is counted to check if the sum is even. In this example, A0, A2, A3, and A6 are 1, and the total sum is 4, which is an even number. Therefore, it is determined here that the reading is normal.

Next, since the most significant bit is for error detection, it is excluded, and the obtained binary number = 011001 is converted to a decimal number to be 25. If the container information is, for example, the spine number of the container body 6, It can be handled as a container body No. 25. In this example, as shown in the container information hole of FIG.
6 digits of binary number are assigned and converted to decimal number 0-6
There are 3 types of distinction. If more allocations are needed, it can be easily handled by increasing the number of digits.

Next, the handling of the punch card system according to the present invention will be described in detail with reference to FIG. First, in 1) punch card transfer 41, the punch cards 11 housed in the container body 6 are taken out from the holder 15, moved to the enrollment case 14 provided at the arranged position, held in the groove of the receiving port, and released directly below. 2) Release the card 11 and the card will drop right in front of the sensor head.
a) and 21b are detected, the process proceeds to the next section, and 3) the initialization 42 is executed to turn on the flag (0, 1 determination) function during the reading operation.
The N state is set, the read limit timer is started, and the read count is reset to zero at the start.

4) The reading execution 43 is cleared because it is abnormal unless the reading execution 43 of the sensor head is dropped downward and the preset synchronization count number is repeated within the above-mentioned reading limit timer time, and 1). Return to and repeat again. 5) When all the readings of the synchronous count number are normally repeated, the process proceeds to the next step, and at the time of punching holes, all punch cards 11 are opened so that the total number of holes in the row A is even. It is checked if the number of counts is even, using the conditions, and the process proceeds to the next step without any abnormality.

6) According to the above operation flow, the reading 43 is completed, the lamp 22 on the upper part of the enrollment case 14 is turned on, and the punch card 11 is normally read. 7) Subsequently, the user operation 45 is started to perform blending and weighing. In this way, 8) If another mixed powder material is used, another powder is needed, and the container body 6 must be replaced. Along with this, the punch card 11 of the unnecessary container body 6 in the booth 7 in the arrangement according to the mixing instruction is taken out from the enrollment case 14, housed in the holder 15 of the container body 6 and replaced with the new container body 6 to be 1). Return and repeat.

9) After the card 11 is withdrawn 46, if the above-mentioned card 11 disappears from the enrollment case 14 and the undetected state continues for 1 second or longer, the reading is cleared 47, the lamp 22 is extinguished, and a series of punch card system operations are performed. After that, a new container body 6 is replaced and arranged, and the reading is repeated.

In this manner, the identification numbers are set on all the container bodies 6, the cards 11 are attached, and the card reader 13 for reading the cards of the respective container bodies 6 is installed at the arrangement position for dispensing and weighing the container bodies 6. Sometimes the card is read and identified, and the identification data is kept as it is during enrollment until the removed card is removed, and the holding information obtained from these card readers 13 is constantly compared with the instruction container data in the compounding instruction during the weighing operation. The calculation is performed, it is determined that the container matches the required container, and the correctness is determined.

Next, the powder blending apparatus 1 will be described with reference to FIGS. This device comprises a weighing machine 3 for measuring powder,
A large number of powder storage container bodies 6, a booth 7 in which desired powders are placed at predetermined positions to provide correctness monitoring and local discharge function, and a weighing machine 3
And a management system 2 which controls the control functions of the booth 7 and supports work information. Putting in / out the desired powder into / from the preparation location, dispensing powder from the containing container body 6 and containing container body 6
The powder replenishment is made into a simple mechanism by adding manpower, and it is economically constructed so that artificial pocamis can be eliminated by manpower.

First, as the measuring device 3, an electronic scale is adopted, and the measured value and the upper and lower limit allowable values for each blended product can be programmed. Input / output the weighing function as electronic data to monitor 4 or PL
A model that can be exchanged by linking with C8 online is selected and adopted. The operator can perform work according to the screen monitor 4. Work instruction information is displayed on this screen from a higher-order CPU 9 to be described later, and the hand-measured execution weight value is monitored to see if it is within a predetermined variation range. .

Next, the powder container 6 is made into a box-shaped cart 31 with wheels that accommodates powder and is movable. When the composition of the mixed material changes, the cart 31 is replaced. A card holder 15 is provided on the outer wall surface, and as shown in the figure, the punch card 11 according to the present invention is connected to the upper portion of the container body 6 by a chain that can be easily stored, and can be handled as a set for each container body 6 without fail. Booth 7 arranged at the time of dispensing
Then, the other end of the chain 12 which is housed in the enrollment case 14 and connected to the punch card 11 is fixed to the container body 6 so as to be freely attached.

As shown in FIG. 2, the punch card 11 is made of an iron plate and is made up of two rows of vertical openings (rows A and B in the figure).

Column A is a column for allocating container information and error detection, and the positions of the holes are individually different by the allocation method described later. The row B is a row for designating the timing of detecting the presence or absence of holes in the row A, and holes are formed at all positions at equal pitches. The hole positions in the A row and the B row are gaps that are generated due to the timing of the detection of the B row holes although there are lateral and misalignment. This is A
It is also possible to eliminate the gap by absorbing the gap by changing the position of the detection sensor in the row B.

Regarding the allocation of the above-mentioned error detection, the position A0 corresponds in FIG. 2, and the container information is allocated to the positions A1 to A6. With this allocation of container information only, A1
The total number of holes at position A6 is either odd or even, but by adjusting not to add one hole to this,
It can always be specified as an odd number or an even number. In this example, it is defined as an even number. If this condition is used, if the sensor 21 is A0
In the case where the detection of one hole in the A6 position is erroneous, an abnormality can be detected because the specified condition is not satisfied.

Next, in the booth 7, a total of 6 carts 31 are arranged with 3 carts 31 facing each other, and the above-mentioned weighing machine 3 is arranged facing one end of the weighing work space in the middle. . A dust collecting enclosure is provided above each trolley 31, and a space is provided on the floor in which the container body 6 containing the powder can be arranged. An enrollment case 14 equipped with an instruction indicator light, a work error monitoring sensor, and a card reader 13 according to the present invention is installed at each array position, and is connected to the container body 6 at the position where the powder container body 6 is arranged. Punch card 1 worn
It is adjusted so that it can be transferred to the enrollment case 14 at the location where 1 is located.

As shown in FIGS. 2 and 3, the card reader 13
An enrollment case 14 having a folder function capable of accommodating a flat punch card 11, a punch hole detection unit 121 having a proximity sensor 21 capable of detecting the hole of the punch card 11 at the upper part of the case, and a punch hole by this sensor 21. As a means for scanning, the reading / scanning section 120 using the free fall of the punch card 11, that is, the sliding and dropping from the upper receptacle to the bottom in the enrollment case 14, and the holes A1 to A6 excluding the error detection value at the head. It is composed of a reading calculation unit 122 which counts the position detection signal by inputting a binary number with either 1 or 0, calculates it as a decimal number, and reads it as the container 6 number.

Next, the guiding means 108 holds the flat punch card 11 in the upper grooves 24 provided on both sides in the width direction of the upper receptacle of the enrollment case 14, and when the hands are released, the enrollment case 14 is moved to both sides. It is manufactured so that it can be naturally dropped by being guided by the side groove 24, and the guiding accuracy is adjusted so that it can operate smoothly, and some rattling can be sufficiently secured by the allowable value of the detection distance of the detection sensor 21.

Subsequently, the buffering means 109 is constructed so that it can surely fall naturally by using the punched card 11 made of iron, and prevents the trouble of bouncing when detecting the bottom of the enrollment case 14 and detecting the hole again. Of these, a gel pad 23 is preferably used from the commercially available shock absorbers.

Subsequently, in the management system 2, the system control function is instrumented in the PLC 8 and the compounding instruction / measurement result record is instrumented in the CPU 9, and linked to the monitor 4 for screen display. Based on the instruction from the monitor 4, the required powder container bodies 6 are arranged in a predetermined booth 7.

Next, the punch card 11 connected to the powder container body 6 according to the present invention is taken out from the holder 15 and housed in the enrollment case 14 provided in the booth 7, and the sensor 21 attached to this case is placed in the case. When the container information is stored, the container information is detected and the signal from the sensor 21 is PL
At C8, it is converted into a container number and stored in the memory table, while the instruction number from the CPU 9 is stored in the memory table in the PLC 8 via the communication interface and collated and compared with the number from the card reader 13 to make a correct / incorrect judgment. .

Further, a compounding instruction from the CPU 9 is transmitted to the PLC 8 and the monitor 4, work is performed in accordance with the support of the compounding procedure, the execution result is judged as a result, and data can be recorded. In this way, the weighing control of the weighing device 3 and the instruction of the work support in the arranged booth 7 and the work error can be monitored.

[Other Embodiments] 1) In the present embodiment, the powder blending method was a blending step in which a small amount of a wide variety of powder chemicals to be added to rubber was used, but a resin may be used regardless of rubber. It can also be carried out in a so-called step of manually weighing a small amount of powder of another type.

2) The number of holes and the number of holes of the punch card 11 are 7 holes in two rows, but the number of holes is not limited to this, and the number of allocations, the size of the punch card 11 and the number of sensors 21 are taken into consideration. It can be configured in various ways.

3) Dropping into the storage case was used as the scanning method of the punch card system. When the punch card system is arranged at the position of the booth 7, the container bodies 6 are precisely retracted in the height and width directions and the lateral movement amount is used. It is also possible to stack the required number of sensors in rows and read punch cards in rows.

4) In this embodiment, the container bodies 6 to be arranged in the booth 7 are preliminarily determined, but after being arranged in any booth 7 by the punch card system of the present invention, they are registered with the punch card 11 and the subsequent weighing is performed. The order can also be ordered using this registration information.

5) In the present embodiment, the screen display of the electronic scale is composed of four new monitor screens, but the commercially available scale is also equipped with a display, which can be used to perform tare erase and weighing. Zero set and weighing variation alarm can be programmed.

6) Although the container body 6 uses a trolley system with wheels in this example, the container body 6 is not necessarily limited to a trolley, and can be a container, a box or a case. In addition, according to the present invention ...
The device and the method are not limited to those shown in FIGS. 1 to 6 (the embodiment is not limited to the above), and the following forms can be adopted (changed to good).

[0065]

According to the powder blending method of claims 1 and 3,
Since the containers according to the instructions can be surely arranged in the arrangement position around the mixing position, human error can be complemented and the containers can be mistaken, and as a result, defective Pokamis using different materials can be completely prevented.

In the powder blending method according to the second aspect, since a fixed sensor can be passed through a plurality of punch holes in the vertical row, one sensor can scan in the vertical direction. It is possible to create a mechanism that is extremely small.

In the powder blending apparatus according to the fourth aspect, since the detection can be performed at the center of the detection width, it is possible to sufficiently follow the fluctuation when the punch card is transferred and dropped, and the occurrence of the detection error can be prevented. In addition, if one hole is erroneously detected due to detection error, etc., it can be constantly checked by defining it with the condition of the total opening, so the reliability of this detection function can be secured and a simple and economical mechanism can be created. Is. Further, since it is a scanning method for expanding the container information, the capacity can be doubled by increasing the number of punch holes by one, and the number of additional sensors can be minimized.

In the powder blending apparatus according to the fifth and sixth aspects, in addition to the fourth aspect, the function of improving the reliability of the detection function of the punch card reader can be secured and its performance can be ensured, and a simple and economical mechanism can be created. Is. As described above, claim 1 of the present application
The inventions relating to the powder blending apparatus and the blending method described in Nos. 6 to 6 can exert a function capable of solving the required problems.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a blending process according to the present invention.

FIG. 2 is a front view of the punch card system of the present invention.

3 is a side view of FIG. 2 of the present invention, which is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a card reader detection operation chart of the present invention.

FIG. 5 is an operation block diagram of the punch card system of the present invention.

[Explanation of symbols]

1 powder blender 2 management system 3 measuring instruments 4 monitors 6 container 7 booth 11 punch cards 12 chains 13 card reader 14 enrollment case 21 Proximity sensor 21a Row A sensor 21b B-row sensor

Claims (6)

[Claims] 1. The powder is contained and stored in each container body, and the container body containing the required powder is arranged in the vicinity of the mixing location for correctness and error checking.
A powder blending method for dispensing and measuring a powder, wherein the correct / wrong confirmation array is integrally stored by connecting a metal punch card with container information assigned to the container body and arranged in the vicinity of the blending point when dispensing. The powder blending method, wherein the punch card is transferred to a case having a card reader arranged in each case, and the correctness of the array container is determined. 2. The card reader naturally drops the punch card transferred to the upper receptacle of the enrollment case from the upper receptacle to the bottom, and reads the punch holes in the vertical rows of the punch card during this period. Item 2. The powder blending method according to Item 1. 3. A powder blending apparatus for storing and storing powder in each container body, arranging the container body containing the required powder in the vicinity of the mixing location, and dispensing and measuring the powder, wherein the correctness confirmation array is provided. Is provided with a punch card to which container information linked to each of the container bodies is assigned, and a card reader for reading the punch card provided at each position arranged in the vicinity of the mixing location. Powder mixing equipment. 4. The punch card determines the timing for detecting the presence / absence of holes in at least one vertical column of the punch holes, and whether the total sum of the holes in at least one column of the other vertical columns is always an even number. The powder blending device according to claim 3, wherein holes for adjustment are provided so as to be any odd number. 5. The powder blending device according to claim 3, wherein the card reader includes guide means for inserting the punch card and buffer means for preventing the punch card from rebounding. 6. The guide means for inserting and inserting the punch card is a guide groove provided on both sides of the card case with the built-in sensor, and a cushioning means for preventing the punch card from rebounding is a collision part at the bottom of the card case. The powder blending device according to claim 5, wherein the powder blending device is a shock absorbing pad provided in the.