JP2007050623A - Weighing order controller for weighing device weighing two or more materials in batcher plant - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the weighing precision of materials and attempt an improvement in the quality of the product. <P>SOLUTION: A weighing order controller has (1) a weighing order selection section 40 specifying a weighing order of two or more materials a1, a2 and a3 arbitrarily to the weighing control panel 39 of a batcher plant having one weighing meter 35 below storage bottles 29, 30 and 31 for the materials a1, a2 and a3, respectively, and (2) a weighing load controlling section 41 capable of inputting/outputting data in the order of discrimination numbers assigned to the individual materials a1, a2 and a3 to/from a material managing unit 48, a printing unit 49 and an external unit 46 while giving an opening or a closing order to the weighing gates 32, 33 and 34 of the individual storage bottles 29, 30 and 31, respectively, according to the specified weighing order. The weighing error can be reduced by inputting quality and an amount of to-be-produced ready-mixed concrete to the weighing control panel 39 and specifying the weighing order of the materials a1, a2 and a3 in order of the magnitude of the blending ratio in the weighing order selection section 40 to allow materials of smaller blending ratios to be weighed later so as to reduce the deviation on charging to the weighing meter 35. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention provides a weighing sequence for a multi-material weighing scale in a batcher plant that allows a plurality of materials to be freely selected and designated when weighing a plurality of materials in a batcher plant. The present invention relates to a control device.

  In general, the workability at the time of placing the ready-mixed concrete and the concrete strength after hardening are governed by the properties and quality such as the slump value of the ready-mixed concrete manufactured in the ready-mixed concrete production facility. Therefore, when producing ready-mixed concrete at ready-mixed concrete manufacturing equipment, when mixing materials such as cement, aggregate (gravel and sand), water, and admixture at batcher plant, Depending on the desired properties and quality, the blending ratio of the above materials is appropriately set.

  Furthermore, in the batcher plant of ready-mixed concrete production facilities, it is possible to stabilize the properties and quality of the ready-mixed concrete to be manufactured, and to manufacture various types of ready-mixed concrete with different properties and quality according to customer requirements. In order to be able to do so, it is classified according to the difference in particle size, the amount of water content, etc., such as sand (fine aggregate) and gravel (coarse aggregate), etc. Regarding aggregates and cements used as materials when preparing multiple types of aggregates in advance or preparing multiple types of cements with different properties due to differences in calcined raw materials, etc. In many cases, a plurality of types of aggregates and cement are mixed and used at a required mixing ratio.

  FIG. 2 shows a batcher plant (raw concrete manufacturing apparatus) in which three types of aggregates of fine aggregate (sand) S, coarse aggregate G1 and coarse aggregate G2 are used as aggregates in the raw concrete production material. The outline of an example is shown, and the configuration is as follows.

  That is, the batcher plant 1 shown in FIG. 2 temporarily stores cement C and aggregates S, G1, and G2 that are carried from a primary stock yard or a material storage tank (not shown) provided in the ready-mixed concrete manufacturing facility. Therefore, a cement storage bin 2 for storing cement C, a sand storage bin 3 for storing sand S, a coarse aggregate storage bin 4 for storing coarse aggregate G1, and a coarse aggregate for storing coarse aggregate G2. A storage bin 5 is provided, and as other materials, a water storage tank 6 for storing water W and an admixture storage tank 7 for storing admixture AD are provided.

  Below the cement storage bin 2, a cement meter 8 for measuring the cement C cut out from the cement storage bin 2 is provided with a cement conveying device 9 interposed therebetween, and below the sand storage bin 3. Is provided with a sand measuring device 10 for measuring the sand S cut out from the sand storage bin 3. Further, below the coarse aggregate storage bin 4 and the coarse aggregate storage bin 5, a common aggregate measuring instrument for measuring the coarse aggregate G1 and the coarse aggregate G2 cut out from the storage bins 4 and 5, respectively. 11 is provided.

  A raw material chute 12 connected to the inlet side of the material kneading mixer 13 is provided at a position below each of the measuring instruments 8, 10, 11, and is measured by each of the measuring instruments 8, 10, 11. The cement C, sand S, coarse aggregate G1 and coarse aggregate G2 thus made can be fed into the mixer 13 via the raw material chute 12.

  Below the water storage tank 6, a storage tank 16 for temporarily storing the water W flowing out from the water storage tank 6 through the flow rate adjusting valves 14 and 15 as the primary water W1 and the secondary water W2, respectively. And 17 are provided, and each of the storage tanks 16 and 17 is connected to the inlet side of the mixer 13 via a chute 18.

  Further, on the downstream side of the admixture storage tank 7, an outflow admixture storage tank 19 for temporarily storing the admixture AD flowing out of the admixture storage tank 7 is connected via a flow rate adjusting valve 20. The downstream side of the outflow admixture storage tank 19 is connected to the inlet side of the mixer 13.

  In addition, the batcher plant 1 is provided with a kneading controller 21, and when a kneading command signal 22 is input from the outside to the kneading controller 21, the cement transport attached to the cement storage bin 2. Connected to the device 9, the sand storage bin 3, the coarse aggregate storage bin 4, and the measurement gates (cutting devices) 23, 24, 25 provided at the lower ends of the coarse aggregate storage bin 5, respectively, and the water storage tank 6 The flow rate adjusting valves 14 and 15 and the flow rate adjusting valve 20 connected to the admixture storage tank 7 are operated, and load cells (load detectors) 26 and 27 of the metering devices 8, 10, and 11 are operated. , 28, a predetermined amount of cement C, sand S, coarse aggregate G1, coarse bone so as to obtain a kneading amount and a blending ratio according to the kneading command signal 22 Mixer 13 with material G2, water W, admixture AD It is also available on. As a result, the mixer 13 can knead each of the charged materials to produce ready-mixed concrete MC having desired properties and quality indicated by the kneading command signal 22 (for example, Patent Document 1). reference).

  By the way, when using a plurality of cements of different varieties or a plurality of sands and gravels of different varieties as raw concrete production materials in a batcher plant, for example, C1, C2, C3... In the case of sand, S1, S2, S3,..., And identification with serial numbers such as a1, a2, a3,... Numbers are assigned, and mechanical identification of the material a1, material a2, material a3,... Of each kind of the material in the batcher plant is performed based on the identification number.

  Moreover, the primary stock yard, the material storage tank, and the storage bin of the batcher plant for individually storing the materials a1, a2, and a3 are also attached to the materials a1, a2, a3,. An identification number that can be identified mechanically corresponding to each identification number is assigned, and each material a1, a2, a3,... The materials a1, a2, a3,... From the material storage tank to the storage bins of the batcher plant, and the materials a1, a2, a3,.・ Management of loading / unloading operation of each material a1, a2, a3... Such as cutting out, management of storage amount of each material a1, a2, a3. Based on the identification number Stomach have been made to it is also the general public to be able to be carried out mechanically.

  Furthermore, in the case of using different materials of different varieties mixed at a required mixing ratio during the production of ready-mixed concrete, it is shown in FIG. 2 according to the amount to be measured of a plurality of materials of different varieties. As in the case where the coarse aggregate G1 and the coarse aggregate G2 are weighed by the single aggregate meter 11 in the batcher plant 1, two or more kinds of materials respectively cut out from the individual storage bins are used as a common one. Sometimes weigh with a measuring instrument. Thus, when measuring a plurality of materials with a single measuring instrument, for example, among the above-mentioned certain materials, three kinds of materials a1, a2 and a3 having different varieties have a weight of 300 kg, 200 kg and 100 kg, respectively. When weighing with one weighing machine, first, out of each material a1, a2, a3 of different varieties, the material a1 with the youngest identification number is cut out from the corresponding storage bin, The material a1 is put into the weighing device so that the load detection amount detected by the weighing device is 300 kg, and then the material a2 to which the next young identification number is assigned is stored in the corresponding storage bin. Then, the load of the material a2 is loaded on the measuring instrument so that the load detection amount detected by the measuring instrument is 500 kg, which is the total weight of the materials a1 and a2 to be weighed. After that, the material a3 having the largest identification number is cut out from the corresponding storage bin, and the load detection amount detected by the measuring device should be measured for each of the materials a1, a2, and a3. The material a3 is charged into the measuring device so that the total weight is 600 kg, and the measurement of the materials a1, a2, and a3 is completed. Serial processing (sequential processing) according to the order of identification numbers is widely performed.

Japanese Patent Laid-Open No. 7-241838

  However, as the type of ready-mixed concrete to be manufactured is changed, the mixing ratio of different materials a1, a2, and a3 among certain materials may not necessarily decrease in the order of the identification numbers. . However, in the above-described conventional serial processing, the order in which the plurality of materials a1, a2, and a3 are cut out from the respective storage bins to the common measuring instrument and weighed is the identification that was initially set regardless of the blending ratio. For example, even if the blending ratio of the material a2 is larger than that of the material a1, the material a1 having a smaller amount to be weighed should be weighed. The actual situation is that prior to the weighing of the material a2 having a larger quantity, the material a2 is put into the weighing machine.

  On the other hand, since the measuring instrument provided in the batcher plant is normally set to a size that satisfies the expected maximum kneading amount, it has a relatively large capacity. For this reason, if the weighing is performed with the large-capacity weighing instrument in a state where the input amount of the material is small as described above, there is a concern that the weighing error increases.

  That is, even if the weighing gate is closed from the state in which the weighing gate of the storage bin is opened and the required material is dropped into the weighing instrument, the weighing of the storage bin is still performed when the weighing gate is closed. The weight of the material in the process of dropping in the space from the position directly below the gate to the material surface received by the weighing instrument is not detected by the weighing instrument. When measuring the material to be measured, always estimate the amount of material that is in the process of dropping in the space, and after closing the storage gate of the storage bin, it must be dropped from the space and received by the measuring instrument. In consideration of the increase in the weight of the material added by the above, the weighing gate is closed at a time slightly earlier than the weight of the material detected by the measuring instrument reaches the desired weight, so that the head is corrected. ing. However, when the amount of material input to the measuring device is small, the drop between the storage gate's weighing gate and the material surface received by the measuring device becomes large, and the material in the falling process that exists in the space where this drop is large. Therefore, even if the amount of material in the dropping process is estimated and the weighing gate is operated, the head correction cannot be compensated for, and a measurement error is likely to occur. In general, a material with a small amount to be weighed has a narrower tolerance for weighing errors than a material with a large amount to be weighed. , The impact on product quality will be significant.

  In addition, since a material with a large amount to be weighed has a relatively wide tolerance for weighing error and a large amount of material is charged into the measuring device at the time of weighing, the material is put into the storage bin by itself. Since the head between the measuring gate and the material surface received by the measuring device can be made relatively small, the measuring error can be suppressed.

  Therefore, the present inventors have devised and researched to be able to reduce the measurement error of a material with a small amount to be measured when measuring a plurality of materials with a single measuring instrument in a batcher plant. In order to reduce the measurement error of materials with a small amount to be weighed, we have found that it is only necessary to prevent the material with a small amount to be weighed from being put into the measuring device alone. We considered a method to put materials into the measuring device in order from the material with the largest amount.

  However, as described above, when weighing a plurality of materials with one weighing device, the weighing processing of each material is conventionally controlled serially, and therefore the weighing order of each material remains at the original setting. Since they are fixed in the order of the identification numbers, it is difficult to change the order of materials put into the measuring instrument, that is, the weighing order of each material.

  If the material with a certain identification number stored in the primary stockyard, material storage tank, or storage bin is replaced with another material, the order in which each material is weighed when performing the above conventional serial control. However, the replacement operation of the material stored in the primary stock yard, the material storage tank, and the storage bin as described above requires a lot of time, labor, and cost, and is not realistic.

  In addition, if the identification number assigned to each material is replaced by software by changing the program, etc., and the corresponding identification numbers attached to the primary stockyard, material storage tank, and storage bin are also replaced, the above It is possible to change the weighing order of materials without actually replacing the material stored in the primary stockyard, material storage tank, or storage bin. It is necessary to rearrange data such as In addition, in order to change the material weighing sequence, a specialist engineer has to change the internal program and settings, resulting in great labor and cost. Furthermore, there is a concern that a significant change in equipment is required, such as replacing (redrawing) external wiring to change the weighing order.

  In addition, in any of the above methods, material management and data management become complicated, errors are likely to occur, and quality may be affected. In other words, if the measurement order of the material is changed by the method as described above, the data storage order for the same material and the type-out order in the printing device also change before and after the change of the measurement order. As a result, the data of each material becomes inconsistent and management becomes complicated, which may cause an operation error.

  In view of this, the present invention is designed so that when the plurality of materials are sequentially weighed by a measuring instrument that weighs a plurality of materials in a batcher plant, the weighing order of each material can be arbitrarily changed. It is an object of the present invention to provide a measuring sequence control device for a measuring instrument for measuring multiple materials in a batcher plant that can reduce the measurement error of the above and can improve the quality of the ready-mixed concrete to be manufactured.

  In order to solve the above-mentioned problem, the present invention is a measurement operation in a batcher plant provided with a measuring device for measuring two or more kinds of materials cut out from individual storage bins, corresponding to the invention according to claim 1. A weighing order selection unit for arbitrarily designating the order of weighing the materials with the weighing instrument on the board, and sequentially cutting out the materials from the storage bins in the order designated by the weighing order selection unit. It is set as the structure which comprises the control part to be equipped.

  In addition, the control unit provided in the weighing operation panel having the above-described configuration is used to send input data of each material input from the storage bin to each measuring device to either one or both of the material management device and the printing device. It is set as the structure provided with the function to output in order of the identification number attached | subjected to.

  Further, the weighing order selection unit provided in the weighing operation panel in each of the above-described configurations can input data of quantities to be weighed of two or more kinds of materials from the external device in the order of the identification numbers given to the respective materials. At the same time, the measuring order selection unit is configured to have a function of arbitrarily specifying the order in which each material is measured by the measuring instrument without depending on the input order from the external device.

According to the weighing sequence control device for the multi-material weighing scale in the batcher plant of the present invention, the weighing operation panel in the batcher plant provided with the weighing scale that measures two or more kinds of materials cut out from the individual storage bins, A weighing order selection unit for arbitrarily specifying the order in which the materials are weighed by the weighing device, and a control unit for sequentially cutting out the materials from the storage bins in the order specified by the weighing order selection unit. Therefore, the following excellent effects are exhibited.
(1) The weighing order selection part of the weighing operation panel can arbitrarily change the weighing order of each material when weighing multiple materials with a weighing machine regardless of the order of the identification numbers assigned to each material. Therefore, by specifying the order of measurement so that the material with a large amount to be weighed first and the material with a small amount to be weighed in order later, only the material with a small amount to be weighed The risk that the material to be weighed will be prevented and the material to be weighed in is put in the meter before the material to be weighed in is put in the meter. Therefore, it is possible to reduce a drop when the material with a small amount to be weighed is fed from the storage bin to the measuring device, and to reduce the weighing error of the material with a small amount to be weighed. Can be reduced. Therefore, since each material can be accurately measured, the quality of the ready-mixed concrete to be manufactured can be improved.
(2) In addition, it is not necessary for a professional engineer to change the internal program and settings in order to change the weighing order of materials, and the external wiring is changed to change the weighing order of materials. Since this change is not necessary, it is possible to arbitrarily change the weighing order of materials in a measuring instrument that measures a plurality of materials without requiring much labor and cost.
(3) To the control unit provided in the weighing operation panel, the input amount data of each material supplied from each storage bin to the measuring device is attached to each material to either or both of the material management device and the printing device. A function for outputting in the order of the identification numbers that are provided, or the weighing order selection unit provided on the weighing operation panel is provided with data on the amount to be weighed of two or more types of materials from each external device. In addition, it is possible to input in the order of the identification numbers, and the measuring order selection unit has a function of arbitrarily specifying the order in which each material is measured by the measuring instrument without depending on the input order from the external device. By configuring, material usage data and compounding ratio data are input / output in the order of the identification numbers assigned to each material, in the same way as before, between material management devices, printing devices, and external devices. it can. For this reason, it is not necessary to change the equipment or change the data order in the material management apparatus, the printing apparatus, the external apparatus, or the like, and it is possible to eliminate the risk of complicated material management and data management.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 shows an embodiment of a measuring sequence control device for a measuring device for measuring multiple materials in a batcher plant according to the present invention. The batcher plant is composed of a plurality of cements of different varieties or a plurality of sands and gravels of different varieties. Storage bins 29, 30, 31 for individually storing different kinds of materials a1, a2, a3 for a certain material such as aggregate, etc., and at the lower end of each storage bin 29, 30, 31 A common measuring device 35 for measuring the materials a1, a2, and a3 cut out from the storage bins 29, 30, and 31 is provided below the measuring gates 32, 33, and 34. And a mixer 36 for charging and kneading the materials a1, a2 and a3 measured by the measuring device 35. For the mixer 36, cement and aggregates such as sand and gravel, which are raw materials for producing ready-mixed concrete, are used as the materials a1, a2, and a3, or storage bins and weighing units not shown. In addition to the batcher plant shown in FIG. 2, other raw concrete manufacturing materials such as water and admixture are also appropriately supplied from the required equipment. It is supposed to be possible. Similarly to the weighing instruments 8, 10, and 11 shown in FIG. 2, 37 is a load cell provided in the weighing instrument 35 for performing load detection, and 38 is an open / close gate that opens and closes the lower end outlet of the weighing instrument 35.

  Further, on the weighing operation panel 39 of the batcher plant, a weighing order selection unit 40 for an operator (not shown) to designate the weighing order of the materials a1, a2, and a3, and the order designated by the weighing order selection unit 40. In accordance with the above, while sequentially giving opening / closing operation commands to the weighing gates 32, 33, 34 of the storage bins 29, 39, 31 in which the respective materials a1, a2, a3 are respectively stored, The device 49 and the external device 46 are provided with a weighing dynamic load control unit 41 for inputting / outputting data in the order of the identification numbers given to the materials a1, a2, and a3. In this specification, the weighing operation panel of the batcher plant refers to the type and amount of ready-mixed concrete to be manufactured, and from each storage bin of each material according to the composition of ready-mixed concrete to be manufactured. An operation panel that can cut out a necessary amount of material shall be used.

  More specifically, the batcher plant includes a weighing operation panel 39 for instructing the type and production amount of ready-mixed concrete to be manufactured. The measuring operation panel 39 is ready-made concrete to be manufactured by an operator at an input unit (not shown). Of the various types of ready-mixed ready-mixed concrete stored in the internal storage unit 42, the ready-mixed ready-mixed mix 43 specified in the input unit is called up. Based on the blending ratio of the materials a1, a2, and a3 in the blending memory 43 and the input amount of ready-mixed concrete, the calculation unit 44 determines the amounts of the materials a1, a2, and a3 to be measured. It can be calculated and input to the weighing order selection unit 40. Further, in the measurement order selection unit 40, an operator (not shown) measures the materials a1, a2, a3 by referring to the amounts to be measured of the materials a1, a2, a3 input from the calculation unit 44. The order can be arbitrarily designated in a measurement order designation field (not shown) provided on the screen 45, and the measurement order of each of the materials a1, a2, a3 is designated in the measurement order designation field. Then, in accordance with the specified order, the amounts to be weighed of the materials a1, a2, and a3 are input to the weighing dynamic load control unit 41.

  In addition, the weighing order selection unit 40 of the weighing operation panel 39 includes the materials a1, a2, and the materials a1, a2, and the like based on the blended storage 47 of quality concrete to be manufactured from the required external device 46 and the amount of data to be manufactured. A command for the amount of a3 to be kneaded can be input in the order of the identification numbers given to the respective materials a1, a2 and a3, and the materials a1, a2 and a3 should be kneaded from the external device 46. Even when a quantity command is input, the weighing order selection unit 40 refers to the quantity to be weighed of the materials a1, a2, and a3, and the operator can display the materials a1, a2, and a on the screen 45. By specifying the order of weighing a3 in the weighing order designation field (not shown), according to the designated order, the quantity to be weighed of each of the materials a1, a2, and a3 is measured by the weighing dynamic load control unit 41. So that you can enter And Aru.

  In the weighing dynamic load control unit 41, the weighing gates 32, 33, and 31 of the storage bins 29, 30, 31 corresponding to the materials a 1, a 2, a 3 according to the order instructed from the weighing order selection unit 40. 34, the material a1, the material a1, from the storage bins 29, 30, 31 to the weighing device 35 are sequentially opened and closed, and the weighing gates 32, 33, 34 are sequentially opened and closed. The a2 and a3 are sequentially input. Further, when the weighing gates 32, 33, and 34 of the storage bins 29, 30, and 31 are opened and closed so that the materials a1, a2, and a3 are charged into the weighing instrument 35, By constantly feeding back the detection value of the load detection signal detected by the load cell 37 to the weighing dynamic load control unit 41, the weighing gates 32, 33, 34 of the storage bins 29, 30, 31 can be made to each material. The material a1, a2, a3 can be weighed by performing a closing operation at the timing when the head correction of a1, a2, a3 is expected.

  Further, the weighing dynamic load control unit 41 is used when the material management device 48 provided inside or outside the weighing operation panel 39 is inserted into the measuring device 35 from each of the storage bins 29, 39, 31. In addition, the usage (consumption) data of the materials a1, a2, and a3 can be output in the order of the identification numbers given to the materials a1, a2, and a3. Similarly, the metering dynamic load control unit 41 outputs the usage data to the printing device 49 in the order of the identification numbers given to the materials a1, a2, and a3, and the materials a1. , A2 and a3 can be printed in the order of the identification numbers assigned to the materials a1, a2 and a3. Further, the usage amounts of the materials a1, a2, and a3 can be output to the external device 46 in the order of the identification numbers assigned to the materials a1, a2, and a3.

  After inputting the kind and amount of ready-mixed concrete to be manufactured by the operator to the weighing operation panel 39 in the weighing sequence control device of the measuring instrument for measuring multiple materials in the batcher plant of the present invention having the above-described configuration, the weighing order selection unit 40 In the weighing order designation field on the screen 45, the order of weighing each material a1, a2, a3 with the weighing device 35 is set in order from the largest amount to be weighed, that is, the materials a1, a2, a3. When the amounts to be weighed are, for example, 100 kg, 300 kg, and 200 kg, respectively, the operator places an order in the order of the materials a2, a3, a1 in the weighing order designation column on the screen 45. Is designated, the weighing dynamic load control unit 41 first instructs the weighing gate 33 of the storage bin 30 in which the material a2 is stored in the designated order. The material a2 is cut out from the storage bin 30 and started to be put into the measuring device 35, and then the load detection value detected by the load cell 37 of the measuring device 35 is calculated in consideration of the head correction. When 300 kg has been reached, a command is given to the weighing gate 33 of the storage bin 30 to close it, and the charging of the material a2 is stopped. Next, a command is given to the weighing gate 34 of the storage bin 31 in which the material a3 is stored to open it, and the charging of the material a3 into the measuring device 35 is started. When the load detection value detected at 35 reaches 500 kg, which is the total amount of materials a2 and a3 to be weighed, a command is given to the weighing gate 34 of the storage bin 31 at a slightly earlier time to close the material. Stop the charging of a3. Next, similarly, after giving a command to the weighing gate 32 of the storage bin 29 in which the material a1 is stored and opening the material a1 into the measuring device 35, taking into account the head correction, When the load detection value detected by the measuring device 35 reaches 600 kg, which is the cumulative amount of materials a2, a3, and a1, to be measured, a command is given to the measuring gate 32 of the storage bin 29 at a slightly earlier time to close it. Thus, by stopping the charging of the material a1, the materials a1, a2, and a3 are weighed so as to match the amounts to be weighed.

  Thereafter, the metering dynamic load control unit 41 gives the material a1, a2, a3 usage data of the materials a1, a2, a3 to the material management device 48 and the printing device 49, respectively. Since the information is output in the order of the identification numbers, that is, the material a1, the material a2, and the material a3 in this order, the material management device 48 uses the data on the usage amount in the order of the identification numbers for the materials a1, a2, and a3. In the printing apparatus, the usage amounts of the materials a1, a2, and a3 are typed out in the order of the identification numbers.

  Further, when the amount of each material a1, a2, a3 to be kneaded is input from the external device 46 to the weighing operation panel 39 based on the ready-mixed concrete 47 of the ready-made concrete to be manufactured, In the same manner as described above, when the operator designates the weighing order of the materials a1, a2, and a3 in descending order on the screen 45 of the weighing order selection unit 40, the materials a1, a2, and a3 are Weighing is performed in order from the largest amount to be weighed, and then the material dynamic load control unit 41 applies the material a1, a2, a3 to the material management device 48 and the printing device 49. Since the output related to the usage amount is output in the order of the identification numbers, the material management device 48 grasps the information on the usage amounts in the order of the identification numbers for the materials a1, a2 and a3. a For each of the amount of a2, a3, type out is performed in the order of identification numbers.

  As described above, according to the weighing sequence control device for the multi-material weighing scale in the batcher plant of the present invention, the opening / closing operation of the weighing gates 32, 33, 34 of the storage bins 29, 30, 31 is controlled by the dynamic load control. Each of the materials a1 and a2 when a plurality of materials are weighed by the weighing device 35 in accordance with the order instructed by the operator in the weighing order selection unit 40 of the weighing operation panel 39. , A3 can be arbitrarily changed regardless of the order of the identification numbers assigned to the materials a1, a2, a3. For this reason, if the operator designates the weighing order in descending order of the material to be weighed in the weighing order selection unit 40, the weighing device 35 first measures the material to be weighed in a large amount. Since it becomes possible to weigh materials with a small amount to be measured in order later, there is a large drop that is a concern when weighing only materials with a small amount to be weighed into the measuring instrument. This can prevent the occurrence of a measurement error due to the above. In other words, by placing the material with a large amount to be weighed into the measuring device in advance, it is possible to reduce the drop when the material with a small amount to be weighed is put into the measuring device from the storage bin. It is possible to reduce the weighing error of a material having a small amount. For this reason, since each material a1, a2, a3 can be accurately measured, the quality of the ready-mixed concrete to be manufactured can be improved.

  In addition, to the material management device 48 and the printing device 49, data on the usage amounts of the materials a1, a2, and a3 are output in the order of the identification numbers assigned to the materials a1, a2, and a3, as in the prior art. Therefore, it is possible to easily manage the materials a1, a2, and a3 without changing the equipment or changing the data order in the material management device 48, the printing device 49, or the like.

  Furthermore, since the change of the measurement order of the materials a1, a2, and a3 can be easily performed in the measurement order designation field on the screen 45 of the measurement order selection unit 40, the primary stock yard, material storage tank, storage bin Therefore, there is no possibility that a great deal of labor and cost will occur. Therefore, it is possible to perform measurement control according to the situation without changing external equipment or equipment.

Note that the present invention is not limited to the above embodiment, and when there are a plurality of measuring instruments that measure two or more kinds of materials in a batcher plant, the plurality of measuring instruments. The control of the weighing order of each material may be centrally controlled by one weighing operation panel 39. Further, the configuration of the measuring instrument and the measuring order may be displayed on the screen 45 of the measuring order selection unit 40 so that the state in which a plurality of materials are measured by the measuring instrument can be always confirmed and judged.
The measurement order of each material a1, a2, a3 in the measurement order selection unit 40 is specified in the order in which the amount to be weighed is large if there is not much difference in the amount to be weighed of each material a1, a2, a3. It can be arbitrarily changed, and can be applied to the case where two or more kinds of materials are measured with one measuring instrument, and various other changes can be made without departing from the scope of the present invention. Of course, it can be added.

It is a schematic diagram which shows one Embodiment of the measurement order control apparatus of the measuring device for multiple materials measurement in the batcher plant of this invention. It is a schematic diagram which shows an example of the batcher plant used conventionally.

Explanation of symbols

a1, a2, a3 Material 29, 30, 31 Storage bin 32, 33, 34 Weighing gate 35 Weighing device 39 Weighing operation panel 40 Weighing order selection unit 41 Weighing dynamic load control unit (control unit)
46 External device 48 Material management device 49 Printing device

Claims (3)

  Weighing order selection for arbitrarily designating the order of weighing each of the above materials on the weighing operation panel in a batcher plant equipped with a weighing device that measures two or more types of materials cut out from individual storage bins And a control unit that sequentially cuts out materials from the storage bins in the order specified by the weighing order selection unit. Metering sequence control device.   The control unit provided in the weighing operation panel is attached to each material with the input amount data of each material input from each storage bin to each of the material management device and the printing device or both. 2. The measuring sequence control device for a measuring instrument for measuring multiple materials in a batcher plant according to claim 1, further comprising a function of outputting in the order of identification numbers.   The weighing order selection unit provided on the weighing operation panel can input data on the quantity to be weighed of two or more types of materials from the external device in the order of the identification numbers assigned to the materials, and the weighing order selection. 3. A measuring instrument for measuring multiple materials in a batcher plant according to claim 1 or 2, wherein the unit has a function of arbitrarily specifying the order in which each material is measured by the measuring instrument without depending on the input order from the external device. Weighing order controller.

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