CN112729497A - Efficient medicament weighing method and device - Google Patents
Efficient medicament weighing method and device Download PDFInfo
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- CN112729497A CN112729497A CN202110068397.8A CN202110068397A CN112729497A CN 112729497 A CN112729497 A CN 112729497A CN 202110068397 A CN202110068397 A CN 202110068397A CN 112729497 A CN112729497 A CN 112729497A
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- 239000003814 drug Substances 0.000 title claims abstract description 167
- 238000005303 weighing Methods 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 21
- 229940079593 drug Drugs 0.000 claims description 17
- 238000007790 scraping Methods 0.000 claims description 10
- 239000003153 chemical reaction reagent Substances 0.000 claims description 3
- 238000010924 continuous production Methods 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 17
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910002056 binary alloy Inorganic materials 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000033764 rhythmic process Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
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- 231100000331 toxic Toxicity 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
- G01G17/02—Apparatus for or methods of weighing material of special form or property for weighing material of filamentary or sheet form
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Abstract
The invention relates to a method and equipment for efficiently weighing a medicament, wherein the method comprises the following steps: (1) a certain amount of medicament is taken out through a constant volume cup; (2) weighing the constant volume cup, and moving the medicament in the constant volume cup to the product containing cavity; (3) calculating the required quantity of the medicament which needs to be added when the weight of the medicament in the product accommodating cavity reaches the preset weight according to the weighing result of the accommodating cup; (4) n compensation cups are arranged and numbered as a first compensation cup, a second compensation cup, a third compensation cup, … … and an nth compensation cup in sequence; 2^ (m-1) medicaments are correspondingly filled in the compensation cup with the number of m; finding out the number of the compensation cups with the sum of the internal medicament quantity equal to the required medicament quantity; (5) adding the medicament in the compensation cup with the corresponding number into the product accommodating cavity; the invention roughly scales the medicament by the fixed-volume cup, and has low equipment requirement and high speed; and the precision weighing is carried out through the compensation cup, the equipment efficiency is high, the accuracy is high, and the beat and quality requirements of continuous production are met.
Description
Technical Field
The invention relates to the technical field of automatic weighing, in particular to a method and equipment for efficiently weighing a medicament.
Background
The traditional manual weighing mode is simple, but has the problems of low weighing efficiency, manpower consumption, low continuity and effectiveness and the like; the medicine is added by simple manual medicine supplement, the control on the medicine amount is low, and the weighing precision is low; people are in direct contact with medicines, which are generally inflammable, explosive and toxic, and there is a risk of injury to people due to sparks, so that the conventional weighing method must be improved.
Along with the improvement of the automation degree and the increase of the labor cost, more and more manual medicine weighing is changed into automatic medicine weighing. In the industry, the most automatic medicine weighing is that the medicine is roughly weighed firstly and then is slowly vibrated to realize accurate weighing. One such approach is difficult to implement; secondly, the action beat is slow, and the production efficiency is sacrificed to realize high rejection rate of accurate weighing to a certain extent; thirdly, the cost is high, and the key design technologies such as a vibration motor are in monopoly level and are difficult to imitate.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a method and equipment for efficiently weighing a medicament, which have the advantages of high speed, accurate weighing and low manufacturing cost.
The technical scheme for solving the technical problems is as follows: a method for efficiently weighing a medicament comprises the following steps:
(1) a certain amount of medicament is taken out through a constant volume cup;
(2) weighing the constant volume cup, and moving the medicament in the constant volume cup to a product containing cavity;
(3) calculating the required quantity of the medicament which needs to be added when the weight of the medicament in the product accommodating cavity reaches the preset weight according to the weighing result of the accommodating cup;
(4) n compensation cups are arranged and numbered as a first compensation cup, a second compensation cup, a third compensation cup, … … and an nth compensation cup in sequence; 2^ (m-1) medicaments are correspondingly filled in the compensation cup with the number m; finding the number of the compensation cups with the number of the inner medicaments added equal to the required medicament number;
(5) and adding the medicament in the compensation cup with the corresponding number into the product accommodating cavity.
The invention has the beneficial effects that: the medicament is roughly weighed by the volumetric cup, so that the requirement on equipment is low and the speed is high; and the compensation cup is precisely weighed by adopting a binary system method, so that the equipment efficiency is high, the accuracy is high, and the beat and quality requirements of continuous production are met.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the step (3) includes the steps of:
(3a) weighing the weight of the constant volume cup in advance, and subtracting the weight of the constant volume cup from the weighing result to obtain the rough weighing medicament weight in the constant volume cup;
(3b) subtracting the weight of the roughly weighed medicament from the preset weight to obtain the weight of the required medicament which still needs to be added;
(3c) dividing the weight of the required medicament by the average weight of the medicament to obtain the required medicament amount; the number of the medicaments is an integer.
Further, in the step (4), the step of finding the number of the compensation cups in which the number of the inner medicines added is equal to the required number of the medicines comprises:
converting the required medicament quantity into a binary number, wherein each digit of the binary number from right to left corresponds to the number of each compensation cup from 1 to n in sequence; the number of the compensation cup corresponding to the number 1 is the number of the required compensation cup.
Further, the step (1) further comprises:
after a certain amount of medicament is filled in the constant volume cup, the medicament accumulated on the top of the constant volume cup is scraped by the medicament scraping blade.
The beneficial effect of adopting the further scheme is that: avoid the medicament in the constant volume cup too much, weight exceedes predetermineeing weight, and follow-up step can't go on.
The invention also provides a medicament efficient weighing device, which comprises a rough weighing device, a fine weighing device and a product containing cavity; the rough weighing device comprises a first medicine containing bin and a constant volume cup, wherein the first medicine containing bin is arranged above the constant volume cup and is used for adding a medicament into the constant volume cup;
the fine weighing equipment comprises a second medicine containing bin and n compensation cups; the n compensation cups are respectively a first compensation cup, a second compensation cup, a third compensation cup, … … and an nth compensation cup; the n compensation cups are respectively communicated with the second medicine containing bin through n funnels in one-to-one correspondence; the second medicine containing bin is used for correspondingly adding 2^ m medicines into the mth compensation cup;
the volume-fixing cup and the n compensation cups are communicated with the product containing cavity and used for adding tablets into the product containing cavity when the product containing cavity is opened.
Further, the fine weighing equipment also comprises at least one group of spare compensation cups; each group of standby compensation cups comprises n standby compensation cups, and the n standby compensation cups are respectively communicated with the second medicine containing bin through n standby funnels; each group of n standby compensation cups respectively corresponds to one compensation cup, and the second medicine containing bin is used for adding medicines with the same quantity as the medicines in the corresponding compensation cup into the standby compensation cup.
The beneficial effect of adopting the further scheme is that: when the production rhythm is too fast, once weighing is finished, and when weighing is started next time, if the quantity of the medicament in the compensation cup 6 is not supplemented to the corresponding numerical value, a group of standby compensation cups can be used for replacing the compensation cup 6 to carry out weighing, so that the production efficiency is accelerated.
Further, a medicament scraping blade is arranged at the top of the constant volume cup.
And the PLC is electrically connected with the compensation cup and is used for controlling the compensation cup to be opened and closed.
Drawings
FIG. 1 is a schematic structural diagram of a high-efficiency reagent weighing device according to the present invention;
FIG. 2 is a schematic structural diagram of a rough weighing device of the efficient reagent weighing device of the present invention;
fig. 3 is a schematic structural diagram of a precision weighing device of the efficient medicament weighing device.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the medicine scraping device comprises a first medicine containing bin 2, a fixed containing cup 3, a medicine scraping blade 4, a second medicine containing bin 5, a funnel 6, a compensation cup 7 and a product containing cavity.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Example one
An efficient medicine weighing method for precisely weighing the tablet or pill in the shape of tablet, column or different mesopores with uniform density. The weighing method comprises the following steps:
(1) a certain amount of medicament is loaded and taken through the fixed-volume cup 2 to finish the rough weighing of the medicament.
(2) The volumetric cup 2 is weighed, and then the medicament in the volumetric cup 2 is moved into the product containing cavity 7.
(3) The required quantity of the medicament which needs to be added to ensure that the weight of the medicament in the product accommodating cavity 7 reaches the preset weight is calculated according to the weighing result of the accommodating cup 2.
(4) N compensation cups 6 are arranged and numbered as a first compensation cup, a second compensation cup, a third compensation cup, … … and an nth compensation cup in sequence; 2^ (m-1) medicaments are correspondingly filled in the compensation cup 6 with the number of m; the number of the compensation cups 6 is found where the number of the inner doses together equals the number of the required doses.
(5) And adding the medicament in the compensation cup 6 with the corresponding number into the product accommodating cavity 7 to finish the precise weighing of the medicament.
In the step (1), after a certain amount of medicament is loaded in the fixed-volume cup 2, the medicament accumulated on the top of the fixed-volume cup 2 is scraped off by the medicament scraping blade 3, so that the problems that the medicament in the fixed-volume cup 2 is too much, the weight exceeds the preset weight, and the subsequent steps cannot be carried out are avoided. The medicament scraper 3 is not used, and the mode of vibration medicament feeding is selected to gradually add the medicament or the mode of timing medicament feeding is selected to avoid the excess medicament in the fixed-volume cup 2.
The step (3) of calculating the required medicament amount comprises the following steps:
(3a) weighing the weight of the fixed container cup 2 in advance, and subtracting the weight of the fixed container cup 2 from the weighing result to obtain the rough weighing medicament weight in the fixed container cup 2;
(3b) reducing the weight of the coarse medicament by using the preset weight to obtain the weight of the required medicament which still needs to be added;
(3c) dividing the weight of the required medicament by the average weight of the medicament to obtain the required medicament amount; the number of the medicaments is an integer.
And may be calculated in other manners, which are not limited herein. According to the field production condition, the quantity of the medicament can be rounded up in a rounding mode, and can also be rounded up in other modes so as to adapt to the field production condition and ensure the minimum error.
The way of finding the number of the compensation cups 6 with the number of the internal medicament added equal to the required medicament number in the step (4) is as follows: converting the required medicament quantity into a binary number, wherein each digit of the binary number from right to left corresponds to the number of each compensation cup 6 from 1 to n in sequence; the number of the compensation cup 6 corresponding to the number "1" is the number of the required compensation cup 6. For example, when the required number of doses is "25", it is converted into a binary number "11001", in which the first, fourth and fifth digits from right to left are all the number "1", and thus the number of selected compensation cups 6 is 1, 4 and 5. At this time, 1 tablet of medicine in the first compensation cup, 8 tablets of medicine in the fourth compensation cup and 16 tablets of medicine in the fifth compensation cup are added into the product containing cavity 7, and just 25 tablets of medicine are added, so that the medicine in the product containing cavity 7 reaches the preset weight.
Example two
As shown in fig. 1, the efficient medicament weighing device adopting the efficient medicament weighing method of the first embodiment comprises a rough weighing device, a fine weighing device and a product containing cavity 9.
As shown in fig. 2, the rough weighing device comprises a first medicine containing bin 1 and a constant volume cup 2, wherein the first medicine containing bin 1 is arranged above the constant volume cup 2 and is used for adding a certain amount of medicine into the constant volume cup 2. And the top of the fixed containing cup 2 is also provided with a medicament scraping blade 3, and the medicament scraping blade 3 is used for scraping medicaments accumulated on the top of the fixed containing cup 2 so as to finish rough weighing.
As shown in fig. 3, the fine weighing apparatus includes a second hopper 4 and n compensating cups 6. The n compensating cups 6 are a first compensating cup, a second compensating cup, a third compensating cup, … …, and an nth compensating cup, respectively. The n compensation cups 6 are respectively communicated with the second medicine containing bin 4 through n funnels 5 which are in one-to-one correspondence, so that 2^ m medicines are correspondingly added into the mth compensation cup in the second medicine containing bin. The medicament can be added into each compensation cup 6 by a tablet counting machine, or the amount of the added medicament can be determined by other methods, which is not limited herein.
The volume-determining cup 2 and the n compensating cups 6 are communicated with the product containing cavity 7 and are used for adding tablets into the product containing cavity 7 when the cup is opened.
In addition, the fine-weighing apparatus comprises at least one set of spare compensation cups (not shown in the figures). Each group of standby compensation cups comprises n standby compensation cups, and the n standby compensation cups are respectively communicated with the second medicine containing bin 4 through n standby funnels. The n standby compensation cups of each group respectively correspond to one compensation cup 6, and the second medicine containing bin 4 is used for adding the medicines with the same quantity as the medicines in the corresponding compensation cup 6 into the standby compensation cup. When the production rhythm is too fast, once weighing is finished, and when weighing is started next time, if the quantity of the medicament in the compensation cup 6 is not supplemented to the corresponding numerical value, a group of standby compensation cups can be used for replacing the compensation cup 6 to carry out weighing, so that the production efficiency is accelerated. The faster the production pace, the more sets of spare compensation cups are required.
The efficient medicine weighing device of the embodiment adopts the efficient medicine weighing method of the first embodiment. And the efficient medicament weighing device of the embodiment further comprises a PLC (programmable logic controller) (not shown in the figure), and the PLC is electrically connected with the compensation cup 6. The required medicament quantity that still need add when calculating the accurate title through the PLC controller, calculate the serial number that needs to add the compensation cup 6 of medicament in the product chamber 7, and the switching of control compensation cup 6, can realize automatic weighing, the cost of labor significantly reduces, and improve and weigh efficiency, wherein the thick title of constant volume part can generally be controlled within 3s, the partial number piece of accurate title can be controlled within 2s, PLC controller calculation analysis process is within 1s, whole title medicine process can be accomplished within 8 s.
The efficient medicament weighing method and the device have low manufacturing cost, the medicament is roughly weighed by the containing cup 2, the device requirement is low, the speed is high, the medicament is precisely weighed by a binary system through compensation 6, the device efficiency is high, the accuracy is high, and the beat and quality requirements of continuous production are met.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The efficient medicament weighing method is characterized by comprising the following steps of:
(1) a certain amount of medicament is taken out through a constant volume cup;
(2) weighing the constant volume cup, and moving the medicament in the constant volume cup to a product containing cavity;
(3) calculating the required quantity of the medicament which needs to be added when the weight of the medicament in the product accommodating cavity reaches the preset weight according to the weighing result of the accommodating cup;
(4) n compensation cups are arranged and numbered as a first compensation cup, a second compensation cup, a third compensation cup, … … and an nth compensation cup in sequence; 2^ (m-1) medicaments are correspondingly filled in the compensation cup with the number m; finding the number of the compensation cups with the number of the inner medicaments added equal to the required medicament number;
(5) and adding the medicament in the compensation cup with the corresponding number into the product accommodating cavity.
2. The efficient weighing method for the medicines according to claim 1, wherein the step (3) comprises the following steps:
(3a) weighing the weight of the constant volume cup in advance, and subtracting the weight of the constant volume cup from the weighing result to obtain the rough weighing medicament weight in the constant volume cup;
(3b) subtracting the weight of the roughly weighed medicament from the preset weight to obtain the weight of the required medicament which still needs to be added;
(3c) dividing the weight of the required medicament by the average weight of the medicament to obtain the required medicament amount; the number of the medicaments is an integer.
3. The efficient weighing method for medicines according to claim 1, wherein in the step (4), the step of finding the number of the compensation cups with the number of the internal medicines added equal to the required number of the medicines comprises:
converting the required medicament quantity into a binary number, wherein each digit of the binary number from right to left corresponds to the number of each compensation cup from 1 to n in sequence; the number of the compensation cup corresponding to the number 1 is the number of the required compensation cup.
4. The efficient weighing method for the medicines according to claim 1, wherein the step (1) further comprises the following steps:
after a certain amount of medicament is filled in the constant volume cup, the medicament accumulated on the top of the constant volume cup is scraped by the medicament scraping blade.
5. The efficient medicament weighing device is characterized by comprising a rough weighing device, a fine weighing device and a product containing cavity; the rough weighing device comprises a first medicine containing bin and a constant volume cup, wherein the first medicine containing bin is arranged above the constant volume cup and is used for adding a medicament into the constant volume cup;
the fine weighing equipment comprises a second medicine containing bin and n compensation cups; the n compensation cups are respectively a first compensation cup, a second compensation cup, a third compensation cup, … … and an nth compensation cup; the n compensation cups are respectively communicated with the second medicine containing bin through n funnels in one-to-one correspondence; the second medicine containing bin is used for correspondingly adding 2^ m medicines into the mth compensation cup;
the volume-fixing cup and the n compensation cups are communicated with the product containing cavity and used for adding tablets into the product containing cavity when the product containing cavity is opened.
6. The efficient reagent weighing apparatus of claim 5, wherein the fine weighing apparatus further comprises at least one set of backup compensation cups; each group of standby compensation cups comprises n standby compensation cups, and the n standby compensation cups are respectively communicated with the second medicine containing bin through n standby funnels; the n standby compensation cups of the charm respectively correspond to one compensation cup, and the second medicine containing bin is used for adding the medicines with the same quantity as the medicines in the corresponding compensation cup into the standby compensation cup.
7. The efficient medicine weighing device of claim 5, wherein the top of the containing cup is provided with a medicine scraping blade.
8. The efficient medicine weighing device according to claim 5, further comprising a PLC, wherein the PLC is electrically connected with the compensation cup and used for controlling the compensation cup to be opened and closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110068397.8A CN112729497A (en) | 2021-01-19 | 2021-01-19 | Efficient medicament weighing method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110068397.8A CN112729497A (en) | 2021-01-19 | 2021-01-19 | Efficient medicament weighing method and device |
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| CN112729497A true CN112729497A (en) | 2021-04-30 |
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| CN202110068397.8A Pending CN112729497A (en) | 2021-01-19 | 2021-01-19 | Efficient medicament weighing method and device |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85108288A (en) * | 1984-10-26 | 1986-04-10 | 大和制衡株式会社 | Combination weighing method |
| CN1139205A (en) * | 1995-04-06 | 1997-01-01 | 大和制衡株式会社 | Quantitative charging apparatus |
| CN1141430A (en) * | 1995-03-06 | 1997-01-29 | 大和制衡株式会社 | Quantitative charging apparatus |
| CN2318622Y (en) * | 1998-02-13 | 1999-05-12 | 张会生 | Digital modulation measuring apparatus for packer |
| CN102390552A (en) * | 2011-07-26 | 2012-03-28 | 广州市锐嘉包装设备有限公司 | Regular particle material composition quantitative filling machine and filling method thereof |
| CN102582856A (en) * | 2011-01-18 | 2012-07-18 | 广州市锐嘉包装设备有限公司 | Quantitative canning machine for irregular materials and quantitative canning method |
| CN102874420A (en) * | 2012-10-26 | 2013-01-16 | 重庆大学 | Automatic medicine weighing equipment |
| CN106300380A (en) * | 2016-08-27 | 2017-01-04 | 宁波三星智能电气有限公司 | A kind of system of selection of reactive-load compensation capacitor |
| CN107091676A (en) * | 2016-02-17 | 2017-08-25 | 梅特勒-托莱多有限公司 | Difference measurement circuit and the scale with force compensating |
| CN109428590A (en) * | 2017-08-29 | 2019-03-05 | 台湾积体电路制造股份有限公司 | For the non-linear method compensated to digital controlled oscillator |
| CN109592090A (en) * | 2018-12-24 | 2019-04-09 | 程景涛 | A kind of quantitative package claims and weighing method |
| CN110083256A (en) * | 2018-01-23 | 2019-08-02 | 可赛尔内存股份有限公司 | Detecting is set to the method and its mouse apparatus of the clump weight weight of mouse |
-
2021
- 2021-01-19 CN CN202110068397.8A patent/CN112729497A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85108288A (en) * | 1984-10-26 | 1986-04-10 | 大和制衡株式会社 | Combination weighing method |
| CN1141430A (en) * | 1995-03-06 | 1997-01-29 | 大和制衡株式会社 | Quantitative charging apparatus |
| CN1139205A (en) * | 1995-04-06 | 1997-01-01 | 大和制衡株式会社 | Quantitative charging apparatus |
| CN2318622Y (en) * | 1998-02-13 | 1999-05-12 | 张会生 | Digital modulation measuring apparatus for packer |
| CN102582856A (en) * | 2011-01-18 | 2012-07-18 | 广州市锐嘉包装设备有限公司 | Quantitative canning machine for irregular materials and quantitative canning method |
| CN102390552A (en) * | 2011-07-26 | 2012-03-28 | 广州市锐嘉包装设备有限公司 | Regular particle material composition quantitative filling machine and filling method thereof |
| CN102874420A (en) * | 2012-10-26 | 2013-01-16 | 重庆大学 | Automatic medicine weighing equipment |
| CN107091676A (en) * | 2016-02-17 | 2017-08-25 | 梅特勒-托莱多有限公司 | Difference measurement circuit and the scale with force compensating |
| CN106300380A (en) * | 2016-08-27 | 2017-01-04 | 宁波三星智能电气有限公司 | A kind of system of selection of reactive-load compensation capacitor |
| CN109428590A (en) * | 2017-08-29 | 2019-03-05 | 台湾积体电路制造股份有限公司 | For the non-linear method compensated to digital controlled oscillator |
| CN110083256A (en) * | 2018-01-23 | 2019-08-02 | 可赛尔内存股份有限公司 | Detecting is set to the method and its mouse apparatus of the clump weight weight of mouse |
| CN109592090A (en) * | 2018-12-24 | 2019-04-09 | 程景涛 | A kind of quantitative package claims and weighing method |
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