IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0602121
(2000-06-23)
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발명자
/ 주소 |
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인용정보 |
피인용 횟수 :
13 인용 특허 :
16 |
초록
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A counting and combinatorial weighing method for obtaining a collected batch of ingredients of a plurality of types, having a predetermined fractional weight. The method provides a plurality of weighing machines, each of them is for one corresponding group of different ingredients including at least
A counting and combinatorial weighing method for obtaining a collected batch of ingredients of a plurality of types, having a predetermined fractional weight. The method provides a plurality of weighing machines, each of them is for one corresponding group of different ingredients including at least one main ingredient and a plurality of incorporated ingredients. The method comprises the steps of modeling a weighing system, simultaneous weighing according to target weight values the n equal partial batches of the main ingredient within all the n associated weighing scale modules of each weighing machine. The partial batches are discharged into a discharging device, and the total weight is counted. These weighing and counting steps are repeated in succession up to k times, thus the total weight being less than the predetermined fractional weight is obtained. Further batches of at least the n different incorporated ingredients within each of the weighing machines are weighed and discharged to the discharging device and all these total weights obtained are counted. Then n combinatorial partial batches of each main ingredient are weighed in a final combinatorial weighing step according to a counted combinatorial partial batch target weight. When no the best combination is found for the certain type of main ingredients, the single combinatorial partial batch is discharged from the weighing scale module assigned to weigh a correctional partial batch, which is then counted, weighed, and discharged. Related methods contemplate to weigh and discharge the partial batches of at least one incorporated ingredient in an iterative manner alternately with the partial batches of the main ingredient. Each weighing scale module is assembled with at least one common main ingredient feeder and at least one different incorporated ingredient feeder. At least one weighing scale module, assigned to weigh a correctional partial batch, is assembled additionally with a complementary correctional feeder.
대표청구항
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[ I claim:] [1.]1. A counting and combinatorial weighing method for obtaining a predetermined target weight collected batch of a plurality of different types of predetermined fractional target weight main and incorporated ingredients batches for mixing them together, said main ingredients are of sub
[ I claim:] [1.]1. A counting and combinatorial weighing method for obtaining a predetermined target weight collected batch of a plurality of different types of predetermined fractional target weight main and incorporated ingredients batches for mixing them together, said main ingredients are of substantial predominance of said predetermined fractional target weight, a corresponding volume, and of adverse specific properties regarding weighing accuracy, said method comprising the steps of:(a) providing a weighing system comprising a plurality of weighing machines, each of said weighing machines being provided for a corresponding group of said ingredients including at least one of said main ingredients and a plurality of said incorporated ingredients, and providing for each of said weighing machinesmountable rigid support frame means to support attached parts of said weighing machines;a plurality of weighing scale modules, each of said weighing scale modules forming and weighing simultaneously in a series partial batches of said at least one the same main ingredient for counting and combinatorial weighing steps and alternately a batch of said at least one different incorporated ingredient for counting weighing steps;at least one of said weighing scale modules predetermined for correctional weighing steps when no a best combination is found in said different combinatorial weighing step for a certain type of said main ingredients;at least one main ingredient feeder means forming a plurality of flowing streams of said main ingredient directly to feed each of the weighing scale modules for said counting and combinatorial weighing steps;a plurality of incorporated ingredient feeder means, each of said incorporated ingredient feeder means forming a flowing stream of said incorporated ingredient directly to feed the weighing scale module for said weighing step before the combinatorial weighing step for said main ingredient;a plurality of cutoff means for cutting off the flowing streams of said main andincorporated ingredients;ingredients discharging means;a plurality of air collecting means;a plurality of dust preventing means; anda plurality of auxiliary cutoff means for preliminary adjusting the throughput of said main ingredients feeder means, and cutting off the flowing streams of said main ingredient for a particular situation;(b) providinga plurality of storage hopper means for said main and incorporated ingredients;conveyor means for transferring the collected batch of said plurality of ingredients to a mixer; andcontrol computer means for modeling and control of said weighing system, said control computer means providing software means for (b1) setting a technology data and a program selection for said weighing system into the technology data base of said control computer means and (b2) providing a unit-to-unit compatibility of said control computer means and said weighing system;(c) modeling said weighing system, said modeling comprising steps of computing start parameters of a weighing process and an inspection of said start parameters and the unit-to-unit compatibility of said control computer means and said weighing system, said start parameters providing a minimal number of counting weighing steps and, accordingly, maximal initial target values for each of said main and incorporated ingredients to obtain said predetermined fractional target weights;(d) weighing each of said main ingredients within the weighing scale modules of said corresponding weighing machine simultaneously according to the partial batch initial target weight of said start parameters computing in said step (c);(e) discharging the main ingredients from said weighing scale modules;(f) computing partial batch altered target weights for all of said main ingredients for each of all, excluding combinatorial, sequenced weighing steps of a completed cycle; each altering quantity of said partial batch altered target weight is equal to an average of a corresponding total error quantity of said previous counting weighing step;(g) repeating alternately, in succession, the steps of weighing each of said main ingredients within the weighing scale modules of said corresponding weighing machine according to said partial batch altered target weights simultaneously, the steps (e) and (f) in said sequence according to a number of the counting weighing steps of said start parameters counted in said step (c);(h) computing combinatorial partial batch target weights for the main ingredients for said combinatorial weighing step of a completed weighing cycle;(i) weighing each of said incorporated ingredients within the corresponding weighing scale module of said weighing machine simultaneously according to the initial target weight of said start parameters counted in said step (c);(j) discharging the incorporated ingredients from said weighing scale modules;(k) weighing each of said main ingredients within the weighing scale modules of all said corresponding weighing machines simultaneously for the combinatorial weighing step according to said combinatorial partial batch target weights;(l) selecting among all of the weighing scale modules with said main ingredient filled in the combinatorial weighing step in each of said weighing machines, provided for the groups of said ingredients, the best combinations of said combinatorial partial batches, each of said combinations, combining the previous total weight with weights actual values of the selected combinatorial partial batches, gives the final total equal to said batch fractional target weight set for this type or closest to said corresponding batch fractional target weight within the preset allowable limits; and(m) discharging said main ingredients from these weighing scale modules of said weighing machines corresponding to the combination obtained for each type of said main ingredients,whereby the collected batch composed of all said main ingredients partial batches and said incorporated ingredients batches of weight actual values within the tolerance limits of the highest accuracy at a minimal number of said counting weighing steps is obtained.
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