WO2015159300A1 - Système de dosage avec un poids précis - Google Patents

Système de dosage avec un poids précis Download PDF

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Publication number
WO2015159300A1
WO2015159300A1 PCT/IN2014/000407 IN2014000407W WO2015159300A1 WO 2015159300 A1 WO2015159300 A1 WO 2015159300A1 IN 2014000407 W IN2014000407 W IN 2014000407W WO 2015159300 A1 WO2015159300 A1 WO 2015159300A1
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WO
WIPO (PCT)
Prior art keywords
weight
feed
servo
stepper motor
dosing system
Prior art date
Application number
PCT/IN2014/000407
Other languages
English (en)
Inventor
Dhirendra Himatlal MAHIDADIA
Original Assignee
Mahidadia Dhirendra Himatlal
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mahidadia Dhirendra Himatlal filed Critical Mahidadia Dhirendra Himatlal
Publication of WO2015159300A1 publication Critical patent/WO2015159300A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G13/00—Weighing apparatus with automatic feed or discharge for weighing-out batches of material
    • G01G13/16—Means for automatically discharging weigh receptacles under control of the weighing mechanism
    • G01G13/20—Means for automatically discharging weigh receptacles under control of the weighing mechanism by screw conveyors in the weigh receptacle

Definitions

  • the present invention relates to dosing system with precise & accurate weight of dose.
  • This dosing system is purely on logical base. It is purely work on "WEIGHT BASE SYSTEM” It is not on “VOLUME BASE SYSTEM or CAVITY BASE SYSTEM”.
  • the present invention will be mostly used in pharmaceutical industries, drugs industries where the accuracy of weight is must required for precise & accurate weight of dose. Further the invention is also being used in food industries, jewellery - ornaments industries and the others fields where the precise & accurate weight composition will be also require.
  • dosing system worked with precise & accurate dosing weight, it will be controlled by programmable logic controller (PLC) circuit system, servo - stepper motor and load cell etc. There are two types of feeding cycles - arrangements being used in this weight base dosing system
  • Feeder Screw speed is more so feeds high - more value of dosing material.
  • Feeder Screw speed is slow so feeds fine - less value of dosing material. Both feeding cycles will be feeds the raw material from main hopper to weighing bowl through the screw-augur with different speed of screw-augur (which is set on PLC) which is coupled with servo-stepper motor & rotating in to feed barrel or screw housing which is controlled by PLC. Weighing bowl is under the feed barrel discharge point and fixed on load cell. Load cell checked online weight & give signals to PLC to acts with pre loaded programmed commands.
  • the raw material will feeds by feed screw- augur & servo-stepper motor at higher speed, as course feeding at earlier stage and later on by the same as fine feeding cycle in to dosing bowl which is under it (Speeds of screw is depends on characteristics- property of raw material & it will be controlled by pre loaded programmed on PLC).
  • the weighing bowl has received materials which is discharge through rotatable screw in screw housing - barrel and nozzle.
  • the load cell is provided under the weighing bowl which is checked online weight and gives signal - feed back to PLC & Servo-steeper motor which is controlled through PLC controller up to the desired weight is achieved.
  • the present invention also relates to a machine for performing the above method for metering or dosing of pharmaceutical products.
  • a feeding unit called feeder fills the empty die - cavity for tablets or empty capsules where volume is a pre-determined quantity of powder - product.
  • Feeder is feeding raw material which is in powder form which is in different grain sizes or particles forms, says mesh sizes - granules.
  • mesh sizes - granules from sifting system say sifter machine being used for, dose.
  • sifting system - sifter machine is used with single deck or double deck or triple deck, means there are single screen, double screen or triple screen of different mesh sizes of screens are used; ⁇ ⁇ ⁇ ⁇ ' ⁇ - See an example of sifter machine.
  • the volume - "V” is fixed by die - cavity for tablets or capsules because it is pre-defined shape & sizes of product for market or end users.
  • Density - " ⁇ 5 " of raw materials is not fixed because available powder or products are in mixed particles sizes or granules which we have described earlier. So in all die cavity for tablets or in capsule will get powder with mixed density of powder - product through feeder, so weight will be different of products - tablets - capsules with subject to each other or also in same batch because of availability or using raw materials are not of same density means not of same particles sizes - granules So end products are not of same weight because this system works on "VOLUME BASE SYSTEM” & non availability of same particle size of raw material with same granules.
  • a testing unit will checks its weight on online weighing system with sorting device of tablets or filled capsules to determine statistically if the quantity of product within an acceptable range. So some of percentages of products will be in not acceptable range, so it will be rejected, so loss of value - means production cost, raw material cost, labor cost, inventory cost, stock value etc.
  • the measurement of the quantity of product metered into the tablet or capsules is generally an indirect type of measurement and is obtained by evaluating the difference between the weight of a tablet or filled capsule, detected by the testing unit, and the average weight of tablet or capsules known from the type of tablet or capsules employed.
  • This method involves the disadvantage of a somewhat imprecise determination of weight, in particular when the weight of the quantity of product to be metered into the tablet or capsules is of the same order of magnitude as the weight of the tablet or capsules themselves.
  • the tolerances of the weight of product and of the tablet or capsule can compensate one another with the result that an evaluation of the Weight of the product is obtained which is significantly less or greater than the real value.
  • the dosage may be made directly or indirectly by weight on a volumetric way.
  • a known gravimetric metering is so-called loss-in-weight process in which the measured quantity is determined from a measurement of the weight of the product to be dosed containing reservoir before and after the removal of the material.
  • a disadvantage of this method in particular is the low accuracy because of the weighing range of the weighing device must be matched to the weight of the reservoir with content and therefore small amounts can not be determined gravimetrically with the desired accuracy in particular.
  • the present invention relates to a method for metering or dosing of pharmaceutical - drugs product i.e. capsules or tablets or injectable in powder form.
  • the present invention is very simple dosing system with high accuracy of weight of dose - product.
  • the present invention due to high accuracy weight of dose, performance of drug is also improved.
  • it is purely a HEALTH RELATE SYSTEM for human being or end user can get perfect, precise & accurate weighted of dosed product - tablets - capsules, and performances of product - tablets - capsules for end user to obtain up to the mark what end user have prescribed by their consultant or doctor with required dose for each disease. Consultants or Doctors can get performance what they want or can get perfect idea to what to do or can other conclusions do.
  • the main object of the present invention is to provide a high accuracy of dose of accurate & precise weight by such dosing system.
  • Another object of the present invention is to provide cost effective system for the end user of the doing system without any side effect.
  • Another object of the present invention is providing accurate judgment to the doctors or consultants to identity of process or say recovery method for its disease for their patient - client.
  • the present invention is dosing system with accurate weight.
  • raw material is charged in the main hoper, wherein the screw conveyor is connected with servo stepper motor fitted on such hoper.
  • the servo stepper motor is controlled by PLC controller.
  • PLC controller For each dosing cycle, first dosing amount of weight is defined & manually entered that value on PLC control unit. Then the servo motor is start.
  • raw material is feed through the conveyer screw into weighing bowl unit through course feeding method, the Weighing bowl is covered by isolated body and put on load cell so, when the nearby the pre-defined weight is receive, feeding method is converted into the fine feeding method.
  • Fig.l represents the Vertical Feeder view of the dosin
  • Fig.2 represents the Horizontal Feeder view of the dosing system
  • First dosing amount means weight of dose is enter in to PLC display & also enter of both the speed values of feed screw - augur for course feed cycle & fine feed cycle.
  • Inlet port (2) is close after filling sufficient raw material in main hopper (3).
  • feed screw (6) is also rotates at the speed of servo - stepper motor's (1 ) speeds because both are coupled through solid coupling (4).
  • First cycle is course feeding cycle.
  • feed screw (6) rotates at in course speeds means higher speed which is set on PLC for course feeding cycle speed of servo - stepper motor (1), the raw material (5) will moves to forwarding direction through feed barrel (7) & feed nozzle (8) and will be discharged in to weighing bowl (9).
  • Raw materials (5) will discharge to weighing bowl (9) up to desired weight is achieved.
  • Load Cell (11) is checking online weight up to the desired weight of dose. When desired weight is achieved by load cell (1 1), it gives signal - command to PLC to stop the servo - stepper motor (1) & immediately servo - stepper motor (1) stops & PLC also commands to pneumatic cylinder (12) to operate. Now pneumatic cylinder (12) lifts or rotates the weighing bowl (9) & weighing bowl (9) rotates on axes which are fixed to hinge bracket (10) and accurately weighed dose will be poured to further process to discharge chute will be ready for further operation.
  • FIG. 2 Horizontal Feeder view of dosing systems is shown in Fig. 2.
  • Vertical or horizontal feeder view of the dosing system is selected according to the properties - characteristics or flowing ability of raw material being used.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)

Abstract

L'invention concerne un système de dosage avec un poids précis qui est utilisé avec un système à base de poids, la vitesse et la direction de la vis transporteuse montée dans le servomoteur pas à pas étant commandées par un circuit PLC. Selon le système de dosage de la présente invention, la première dose est définie manuellement sur le circuit PLC, puis une matière première est introduite dans la cuvette d'évacuation tout d'abord par alimentation grossière et ensuite par alimentation fine de manière commandée. Au niveau du poids précis, le matériau de dosage est introduit dans la cuvette d'évacuation et une cellule de charge étalonne le poids en ligne de façon précise et envoie le signal au moyen de l'organe de commande PLC pour arrêter le servomoteur pas à pas. Puis un cylindre pneumatique soulève ou fait tourner la cuvette d'évacuation qui tourne sur des axes qui sont fixés à un étrier de charnière et une dose pesée avec précision va être versée pour un traitement ultérieur de sorte que la goulotte d'évacuation soit prête pour une opération supplémentaire.
PCT/IN2014/000407 2014-04-19 2014-06-19 Système de dosage avec un poids précis WO2015159300A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1414MU2014 2014-04-19
IN1414/MUM/2014 2014-04-19

Publications (1)

Publication Number Publication Date
WO2015159300A1 true WO2015159300A1 (fr) 2015-10-22

Family

ID=54323570

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2014/000407 WO2015159300A1 (fr) 2014-04-19 2014-06-19 Système de dosage avec un poids précis

Country Status (1)

Country Link
WO (1) WO2015159300A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105564677A (zh) * 2015-12-01 2016-05-11 苏州信亨自动化科技有限公司 一种散装中药的自动出药装置
CN107932971A (zh) * 2017-12-22 2018-04-20 山西贵友自动化设备有限公司 挤压成型产品的压制生产系统
CN108974972A (zh) * 2018-08-28 2018-12-11 河南省德耀节能科技股份有限公司 一种原料检测系统
CN110395595A (zh) * 2019-08-01 2019-11-01 珠海格力智能装备有限公司 投料装置、尿素机和投料方法
US11278501B2 (en) 2018-10-15 2022-03-22 Aprecia Pharmaceuticals LLC Method and system for forming a dosage form within a packaging

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4003993A1 (de) * 1990-02-09 1991-08-14 Librawerk Pelz & Nagel Kg Elektrische waage fuer rieselfaehiges schuettgut
US20060011653A1 (en) * 2002-10-31 2006-01-19 Ivan-William Fontaine Apparatus for accurate powder metering

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4003993A1 (de) * 1990-02-09 1991-08-14 Librawerk Pelz & Nagel Kg Elektrische waage fuer rieselfaehiges schuettgut
US20060011653A1 (en) * 2002-10-31 2006-01-19 Ivan-William Fontaine Apparatus for accurate powder metering

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105564677A (zh) * 2015-12-01 2016-05-11 苏州信亨自动化科技有限公司 一种散装中药的自动出药装置
CN105564677B (zh) * 2015-12-01 2018-02-23 苏州信亨自动化科技有限公司 一种散装中药的自动出药装置
CN107932971A (zh) * 2017-12-22 2018-04-20 山西贵友自动化设备有限公司 挤压成型产品的压制生产系统
CN107932971B (zh) * 2017-12-22 2023-05-26 山西贵友自动化设备有限公司 挤压成型产品的压制生产系统
CN108974972A (zh) * 2018-08-28 2018-12-11 河南省德耀节能科技股份有限公司 一种原料检测系统
US11278501B2 (en) 2018-10-15 2022-03-22 Aprecia Pharmaceuticals LLC Method and system for forming a dosage form within a packaging
CN110395595A (zh) * 2019-08-01 2019-11-01 珠海格力智能装备有限公司 投料装置、尿素机和投料方法
CN110395595B (zh) * 2019-08-01 2024-03-08 珠海格力智能装备有限公司 投料装置、尿素机和投料方法

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