CN114906781A - Liquid medicine filling system and liquid medicine filling method adopting time pressure method - Google Patents
Liquid medicine filling system and liquid medicine filling method adopting time pressure method Download PDFInfo
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- CN114906781A CN114906781A CN202210741651.0A CN202210741651A CN114906781A CN 114906781 A CN114906781 A CN 114906781A CN 202210741651 A CN202210741651 A CN 202210741651A CN 114906781 A CN114906781 A CN 114906781A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/007—Applications of control, warning or safety devices in filling machinery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
- B67C3/22—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
- B67C3/22—Details
- B67C3/222—Head-space air removing devices, e.g. by inducing foam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
- B67C3/22—Details
- B67C3/225—Means for filling simultaneously, e.g. in a rotary filling apparatus or multiple rows of containers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
- B67C3/22—Details
- B67C3/24—Devices for supporting or handling bottles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
- B67C3/22—Details
- B67C3/26—Filling-heads; Means for engaging filling-heads with bottle necks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
- B67C3/22—Details
- B67C3/26—Filling-heads; Means for engaging filling-heads with bottle necks
- B67C3/2608—Filling-heads; Means for engaging filling-heads with bottle necks comprising anti-dripping means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
- B67C3/22—Details
- B67C3/28—Flow-control devices, e.g. using valves
- B67C3/286—Flow-control devices, e.g. using valves related to flow rate control, i.e. controlling slow and fast filling phases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
- B67C3/22—Details
- B67C3/26—Filling-heads; Means for engaging filling-heads with bottle necks
- B67C2003/2602—Details of vent-tubes
Abstract
The invention discloses a liquid medicine time pressure method filling system which comprises a liquid medicine tank, a filling station and a liquid distributor, wherein the liquid distributor is connected with the liquid medicine tank, a plurality of liquid outlets are formed in the bottom of the liquid distributor along the length direction, a plurality of filling needles which are arranged side by side are arranged above the filling station, each liquid outlet is connected with each filling needle through a pipeline, a filling valve and a flow regulating device are arranged on each pipeline, a weighing device is arranged below each filling needle by a filling worker, and the flow regulating device and the weighing device are used for weighing containers while filling. The liquid medicine time pressure method filling method is also disclosed, which is carried out by adopting the liquid medicine time pressure method filling system and comprises the following steps: emptying before filling; calibrating the filling amount; normally filling; and (5) filling tail liquid. The liquid medicine time pressure method filling system and the liquid medicine time pressure method filling method have the advantages of improving production efficiency, reducing liquid medicine waste and the like.
Description
Technical Field
The invention relates to the technical field of food and medicine packaging mechanical equipment, in particular to a liquid medicine time pressure method filling system and a liquid medicine time pressure method filling method.
Background
The application number is CN201811217650.6, a filling pressure control method and equipment, disclose and carry out the filling through the time pressure method, adopt the constant pressure in the time and control buffer tank that control filling valve opening is fixed to realize the filling, because the pipeline is in the different positions of knockout, can lead to the velocity of flow of knockout to change when one or several filling needles do not have the bottle wherein, therefore the change that leads to the pressure in the filling process is different with when not lacking the bottle, influence the filling precision, consequently it is difficult to realize the function that does not fill to have the bottle, low in production efficiency, liquid medicine waste volume is big. In addition, the single valve structure can not realize the back suction.
The filling process of the existing filling equipment adopting the time pressure method generally comprises an emptying stage, a calibration stage, a normal filling stage and a tail liquid stage.
In the emptying stage, the filling pipeline needs to be emptied, the filling quantity is unqualified before bubbles in the pipeline are not emptied, the waste removal treatment needs to be carried out, and a certain amount of liquid medicine needs to be wasted.
In the calibration stage, the filling valve needs to be filled for several times after the pipeline is emptied, and certain liquid medicine is wasted during calibration.
In the normal filling stage, a time pressure method is adopted for filling, and if the filling amount is low, the filling valve cannot replenish liquid and needs waste removal treatment, so that liquid medicine is wasted; normal filling is realized by combining a pump and a weighing device while filling, the filling efficiency is low, and a pump body is difficult to clean; the application number is CN202111188029.3, a centrifugal bottle filling machine and a filling method thereof, wherein a controller controls the opening of a pipe clamping valve through a weighing signal to realize accurate filling, but the filling efficiency is low.
And in the tail liquid stage, the filling amount is generally low when the liquid level reaches a low point, the filling is stopped at the moment, and the residual liquid medicine can not be used any more basically.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a liquid medicine time pressure filling system and a liquid medicine time pressure filling method for improving the production efficiency and reducing the waste amount of liquid medicine.
In order to solve the technical problems, the invention adopts the following technical scheme:
the liquid medicine filling system adopting the time pressure method comprises a liquid medicine tank, a filling station and a liquid distributor, wherein the liquid distributor is connected with the liquid medicine tank, a plurality of liquid outlets are formed in the bottom of the liquid distributor along the length direction, a plurality of filling needles which are arranged side by side are arranged above the filling station, the liquid outlets are respectively connected with the filling needles through pipelines, a filling valve and a flow regulating device are arranged on each pipeline, a weighing device is arranged below each filling needle by the filling station, and the flow regulating device and the weighing device are used for realizing the purpose of filling containers while weighing.
As a further improvement of the above technical solution:
each pipeline is also provided with a back suction device.
The filling needles are arranged at intervals along the conveying direction of the medicine bottles.
The liquid distributor is obliquely arranged, and the height of a liquid outlet connected with the front filling needle is lower than that of a liquid outlet connected with the rear filling needle in the adjacent filling needles.
The liquid medicine tank is connected with a pressure regulating device.
A liquid level meter is arranged in the liquid medicine tank.
The liquid medicine time pressure method filling system further comprises a control module, and the weighing device, the filling valve and the flow regulating device are in signal connection with the control module.
The liquid medicine time pressure filling method is carried out by adopting the liquid medicine time pressure filling system, and comprises the following steps of:
s1, emptying before filling: emptying the container before normal filling by adopting a filling and weighing mode so as to discharge gas in a liquid separator, a pipeline, a filling valve and a filling needle;
s2, calibrating filling quantity: filling the container in a preset time period through a filling valve, weighing the filling amount by a weighing device, and if the filling valve is not filled with a preset amount of liquid medicine in the preset time period, filling the container while weighing the container for liquid supplement; if the filling valve is filled with a preset amount of liquid medicine in a preset time, the calibration is finished;
s3, normal filling: the filling valve adopts a time pressure method to carry out quantitative normal filling on the container; s4, filling tail liquid: and filling the tail liquid by using a side filling and side weighing device.
As a further improvement of the above technical solution:
in the step S3, if there is no container below, the corresponding filling valve is closed, and the other filling valves are opened, and filling is performed by using a side-filling and side-weighing flow regulator; if the amount of the liquid medicine in the lower container is insufficient, filling and weighing at the same time to perform liquid supplement until the amount of the liquid medicine in the container is qualified; and if the filling amount of the container below is qualified, sampling and weighing, and if the filling amount is not correct, filling while weighing is adopted to supplement the liquid, and corresponding filling valves are calibrated.
The container is provided with a plurality of filling threshold values, and in the filling process, along with the increase of the filling threshold values, the opening degree of the flow regulating device is reduced.
Compared with the prior art, the invention has the advantages that:
the liquid medicine time pressure method filling system comprises the following steps: firstly, conveying a group of containers to a filling station, wherein the containers are aligned with filling needles above the containers one by one; secondly, opening each filling valve, and emptying each container before normal filling by adopting a side filling and side weighing mode so as to discharge gas in the liquid distributor, the pipeline, the filling valve and the filling needle; thirdly, filling the container in a preset time period through a filling valve, weighing the filling amount by a weighing device, and if the filling valve is not filled with a preset amount of liquid medicine in the preset time period, filling and weighing the container at the same time to supplement the liquid; if the filling valve is filled with a preset amount of liquid medicine in a preset time, the calibration is finished; fourthly, sequentially inputting each group of containers into a filling station, and carrying out quantitative normal filling on the containers by a filling valve by adopting a time pressure method, wherein the opening degree of a flow regulating device is kept unchanged; and fifthly, when the liquid medicine in the liquid medicine tank or the liquid separator reaches the specified amount, filling while weighing the tail liquid. The filling is controlled by means of a flow regulator, i.e. the flow regulator is adjusted to be smaller as the filling quantity in the container increases. The liquid medicine time pressure method filling system integrates the functions of quantitative filling and simultaneous filling and weighing, ensures the production efficiency of the quantitative filling, realizes the functions of no bottle filling and liquid supplementing by the simultaneous filling and weighing, and reduces the waste of liquid medicine during emptying before filling, during filling quantity calibration and tail liquid filling by the liquid supplementing; the quantitative filling is controlled by the filling valve, the filling is controlled by the flow regulating device while filling, the filling control is convenient, and the production efficiency can be improved. The liquid medicine time pressure method filling system can reduce liquid medicine waste and improve production efficiency.
The liquid medicine time pressure method filling method integrates the quantitative filling and the simultaneous filling and weighing processes, ensures the production efficiency by the quantitative filling, realizes the bottle-free non-filling and liquid supplementing functions by the simultaneous filling and weighing, and reduces the waste of liquid medicine during emptying before filling, during filling quantity calibration and during tail liquid filling by supplementing liquid; the quantitative filling is controlled by the filling valve, the filling is controlled by the flow regulating device while filling, the filling control is convenient, and the production efficiency can be improved. The liquid medicine filling method by the time pressure method can reduce liquid medicine waste and improve production efficiency.
Drawings
Fig. 1 is a schematic structural diagram of a liquid medicine time pressure filling system according to the present invention.
The reference numerals in the figures denote:
1. a liquid medicine tank; 2. a filling station; 21. a weighing device; 3. a liquid separator; 4. filling a needle; 5. a pipeline; 6. a filling valve; 7. a flow regulating device; 8. a pressure regulating device; 9. a suck-back device; 10. a container.
Detailed Description
The invention will be described in further detail below with reference to the drawings and specific examples.
The first embodiment is as follows:
fig. 1 shows an embodiment of the liquid medicine time pressure method filling system of the present invention, which includes a liquid medicine tank 1, a filling station 2 and a liquid separator 3, wherein the liquid separator 3 is connected to the liquid medicine tank 1, a plurality of liquid outlets are arranged at the bottom of the liquid separator 3 along the length direction, a plurality of filling needles 4 arranged side by side are arranged above the filling station 2, each liquid outlet is connected to each filling needle 4 through a pipeline 5, each pipeline 5 is provided with a filling valve 6 and a flow regulating device 7, the filling station 2 is provided with a weighing device 21 below each filling needle 4, and the flow regulating device 7 and the weighing device 21 are used for weighing the containers 10 while filling.
The filling process of the liquid medicine by a time pressure method comprises the following steps: firstly, conveying a group of containers 10 to a filling station 2, and aligning the containers with filling needles 4 above one by one; secondly, opening each filling valve 6, and emptying each container 10 before normal filling by adopting a side filling and side weighing method so as to discharge gas in the liquid distributor 3, the pipeline 5, the filling valve 6 and the filling needle 4; thirdly, filling the container 10 through the filling valve 6 within a preset time, weighing the filling amount by the weighing device 21, and if the filling valve 6 is not filled with a preset amount of liquid medicine within the preset time, filling and weighing the container 10 at the same time for liquid supplement; if the filling valve 6 is filled with a preset amount of liquid medicine in a preset time, the calibration is completed; fourthly, the containers 10 of each group are sequentially input into the filling station 2, the filling valve 6 is used for carrying out quantitative normal filling on the containers 10 by adopting a time pressure method, and at the moment, the opening degree of the flow regulating device 7 is kept unchanged; and fifthly, when the liquid medicine in the liquid medicine tank 1 or the liquid separator 3 reaches the specified amount, filling while weighing the tail liquid. The filling is controlled by the flow regulating device 7, i.e. the flow regulating device 7 is adjusted to be smaller as the filling quantity in the container 10 increases. The liquid medicine time pressure method filling system integrates the functions of quantitative filling and simultaneous filling and weighing, ensures the production efficiency of the quantitative filling, realizes the functions of no bottle filling and liquid supplementing by the simultaneous filling and weighing, and reduces the waste of liquid medicine during emptying before filling, during filling quantity calibration and tail liquid filling by the liquid supplementing; the quantitative filling is controlled by the filling valve 6, the filling is controlled by the flow regulating device 7 while filling, the filling control is convenient, and the production efficiency can be improved. The liquid medicine time pressure method filling system can reduce liquid medicine waste and improve production efficiency.
In the embodiment, the number of the filling needles 4 is consistent with that of the weighing devices 21; each filling needle 4 corresponds to a sleeve filling valve 6 and a flow regulating device 7.
The pipeline 5 is provided with 10 pipelines which are matched with 10 sets of filling needles 4, each pipeline 5 is provided with a filling valve 6 and a flow regulating device 7, and the flow regulating devices 7 are pipe clamping devices and are driven by pipe clamping servo motors to control the opening of the pipe clamping devices to realize simultaneous filling and weighing. The weighing device 21 is provided with 10, and the weight value on the weighing device is fed back in real time.
In this embodiment, each of the pipes 5 is further provided with a back suction device 9. The pipe clamping device is controlled by a pipe clamping servo motor, the suck-back device is controlled by the pipe clamping servo motor through a transmission mechanism or an independent servo motor, and the movement direction of the suck-back device is opposite to that of the pipe clamping device. The suck-back device 9 is used for realizing the suck-back of the liquid medicine and avoiding the liquid dropping.
In this embodiment, the filling needles 4 are spaced apart in the direction of transport of the vials. The liquid distributor 3 is obliquely arranged, and the height of a liquid outlet connected with the front irrigation needle 4 in the adjacent irrigation needles 4 is lower than that of a liquid outlet connected with the rear irrigation needle 4.
In this embodiment, the liquid medicine tank 1 is connected to a pressure regulating device 8. The pressure in the liquid medicine tank 1 is controlled to be constant by the proportional pressure regulation of the pressure regulating device 8.
In this embodiment, a liquid level meter is provided in the liquid medicine tank 1. The liquid medicine tank 1 is provided with a weighing sensor and a liquid level meter inside, so that the liquid medicine amount in the tank can be monitored in real time, and the liquid level is controlled to be constant.
In this embodiment, the liquid medicine time pressure method filling system further includes a control module, and the weighing device 21, the filling valve 6 and the flow regulating device 7 are all in signal connection with the control module.
A liquid separator 3: the front end is provided with a liquid inlet valve for controlling liquid inlet, and a pressure sensor is arranged for monitoring pressure.
In this embodiment, filling valve 6 is used for normal time pressure ration filling, and ration filling needs to keep invariable pressure (including the invariable and liquid level of 1 internal pressure of medicinal liquid jar), and is invariable through 1 internal pressure of regulator 8 control medicinal liquid jar, and it is invariable to call the interior liquid level of weighing sensor control medicinal liquid jar 1 through the level gauge to guarantee the pressure of filling in-process invariable, realize ration filling through the on-off time of control filling valve 6. The quantitative filling is less, and the requirement of high yield can be met. The filling valve 6 can only control the switch and cannot control the opening, so that emptying, tail liquid filling, liquid supplementing and non-bottle and non-filling are difficult to realize, and the functions are realized by filling and weighing; the pipe clamping device controls the opening of the pipe clamping device through a pipe clamping servo so as to control the flow velocity, and the pipe clamping device is matched with the weighing device 21 to realize the functions of bottle-free non-filling, filling and weighing, emptying before production, liquid supplementing in the production process, filling amount calibration and tail liquid filling.
The liquid medicine filling system adopting the time pressure method has the following advantages: a. when the air is exhausted, the liquid medicine is prevented from being wasted by filling the bottle with water; b. calibrating before quantitative filling, namely, simultaneously filling and weighing to supplement liquid to avoid waste of liquid medicine, and adjusting the filling valve 6 to realize calibration quantitatively according to a weighing signal; c. the quantitative filling realizes quick filling (is faster than the filling and weighing at the same time); d. sampling and weighing during quantitative filling, when the weighing result shows that the filling amount is insufficient, adopting a side-filling and side-weighing machine to realize liquid supplement, and then calibrating the filling valve 6, if the calibration is unsuccessful, switching to the side-filling and side-weighing machine; d. when quantitative filling is carried out, if a bottle is empty at a certain position, the filling is directly switched to be edge filling and edge weighing before filling, so that unstable filling amount caused by influence on time pressure method control because one filling needle 4 is not filled is prevented; e. and when the tail liquid is filled, reducing the pressure, and weighing while filling.
Example two:
a liquid medicine time pressure method filling method is carried out by adopting the liquid medicine time pressure method filling system of the embodiment I, and comprises the following steps:
s1, emptying before filling: emptying the container 10 before normal filling by adopting a filling and weighing method so as to discharge the gas in the liquid distributor 3, the pipeline 5, the filling valve 6 and the filling needle 4;
s2, calibrating filling quantity: filling the container 10 through the filling valve 6 within a preset time, weighing the filling amount by the weighing device 21, and if the filling valve 6 is not filled with a preset amount of liquid medicine within the preset time, filling the container 10 while weighing for liquid supplement; if the filling valve 6 is filled with a preset amount of liquid medicine in a preset time, the calibration is completed;
s3, normal filling: the filling valve 6 adopts a time pressure method to carry out quantitative normal filling on the container 10; s4, filling tail liquid: and filling the tail liquid by using a side filling and side weighing device.
The liquid medicine time pressure method filling method integrates the processes of quantitative filling and simultaneous filling and weighing, ensures the production efficiency by quantitative filling, realizes the functions of no bottle filling and liquid supplementing by simultaneous filling and weighing, and reduces the waste of liquid medicine during emptying before filling, during filling quantity calibration and tail liquid filling by liquid supplementing; the quantitative filling is controlled by the filling valve 6, the filling is controlled by the flow regulating device 7 while filling, the filling control is convenient, and the production efficiency can be improved. The liquid medicine filling method by the time pressure method can reduce liquid medicine waste and improve production efficiency.
In this embodiment, in S3, if there is no container 10 below, the corresponding filling valve 6 is closed, and the other filling valves 6 are opened, and filling is performed by using a side-filling and side-weighing method through the flow rate adjusting device 7; if the amount of the liquid medicine in the lower container 10 is insufficient, filling while weighing for liquid supplement until the amount of the liquid medicine in the container 10 is qualified; if the filling amount of the lower container 10 is qualified, sampling and weighing are carried out, and if the filling amount is not correct, liquid is supplemented by adopting a side filling and side weighing method, and the corresponding filling valve 6 is calibrated. For the container 10 with insufficient filling amount in normal filling, the filling amount is qualified by liquid supplement, and the waste of the liquid medicine is reduced.
In this embodiment, the container 10 is provided with a plurality of filling thresholds, and the opening degree of the flow regulator 7 decreases as the filling threshold increases during the filling process. The side-filling and side-weighing device is realized through the filling threshold value, and compared with the side-filling and side-weighing device realized by adopting a pump body, the side-filling and side-weighing device is easier to clean and more economical.
(I) evacuation phase
The purpose of emptying is to discharge all air in the liquid separator 3, the pipeline 5 (silicone tube), the filling valve 6 and the filling needle 4, and the filling amount can be kept in a qualified range by a method of filling and weighing at the same time during emptying, so that waste of liquid medicine is avoided.
The drain logic is as follows:
1) the equipment operates, bottle feeding and quantitative filling functions are started, when a group of bottles reach the position above the weighing device 21, once quantitative filling is firstly carried out after tare weight is obtained, and then the total weight is obtained, so that the required fluid infusion amount is obtained;
2) when the filling-while-filling balance is started, the filling valve 6 needs to be opened, and the filling amount is controlled by controlling the pipe clamping device. When the filling quantity is below a specified small filling threshold (rough filling threshold), the opening degree of the pipe clamping device can be set to be a larger value, so that the filling time is saved;
3) when the filling quantity exceeds a specified small filling threshold value, the opening degree of the pipe clamping device is set to a smaller value, and the flow is reduced so as to control the precision within a qualified range;
4) and when the filling quantity reaches a specified large filling threshold value (fine filling threshold value), completely closing the pipe clamping device.
When quantitative filling is carried out, the bottles are required to be not few, otherwise, the bottle filling and weighing are directly started.
(II) Loading calibration
Quantitative filling needs to be carried out the loading calibration, and on-line automatic calibration can be realized by combining the weighing device 21. The calibration logic is as follows:
after the pipe 5 is emptied, the bottles are continuously fed, when a group of bottles (containers 10) reaches above the weighing device 21, the tare weight is obtained, the quantitative filling is carried out for one time, the total weight is obtained again, the net weight is obtained, and the filling time is adjusted according to the net weight.
In the calibration process, for the bottle with lower net weight, filling and weighing can be started to supplement liquid, so that waste of liquid medicine is reduced.
(III) Normal quantitative filling stage
After the loading is calibrated, quantitative filling can be performed, and the pipe clamping device needs to be opened during quantitative filling, so that the pipeline 5 has a certain opening degree.
No bottle and no filling: during quantitative filling, if a bottle at a certain position is empty, the filling is directly switched into edge filling and edge weighing before filling, so that unstable filling quantity caused by influence on time pressure method control due to non-filling of one filling needle 4 is prevented.
(IV) quantitative filling, sampling and weighing
In order to ensure the filling precision, weighing sampling can be carried out at intervals or after a certain number of times in the quantitative filling process (the sampling rate can be set within the range of 0-100), and the online calibration of the filling quantity can be carried out through sampling. If the sample has the abnormal loading, the bottle between the previous weighing and sampling can be taken out, the loading is confirmed, and the filling quality is better ensured.
In the sampling process, when the filling amount is insufficient, the liquid can be supplemented by adopting a side-filling side-weighing method, then the filling amount is switched to full weighing to verify and calibrate, and the sampling weighing is switched back after the filling amount is continuously normal, so that the qualification of the filling amount is ensured. When the continuous unqualified products are not obtained and the calibration is not successful, the production can be switched to a side irrigation and side weighing device, and the continuous production in batch is ensured.
(V) suck back
The back suction device 9 can be opened for back suction under the filling condition with liquid dropping, the back suction is realized through the back suction device 9, the back suction device 9 normally clamps a part of pipelines 5, and the clamping degree can be manually adjusted. When the pipe clamping device clamps the pipeline 5 after filling is completed, the back suction device 9 moves reversely to the pipe clamping device in the process of loosening the pipeline 5, so that the liquid medicine of the filling needle 4 is sucked back to the back suction device 9, and the back suction linkage is realized.
(VI) filling stage of tail liquid
The purpose of tail liquid filling is to complete the filling of the liquid medicine in the final stage, so that the waste of the liquid medicine is avoided; and completely filling the liquid medicine in a way of filling and weighing at the same time.
The logic is as follows:
a) when the liquid level of the liquid medicine tank 1 is lower than a critical set value, starting a tail liquid filling function;
b) the tail liquid filling adopts a mode of filling while weighing, and in order to prevent the last residual liquid medicine in the pipeline 5 from being blown to splash by the air in the liquid medicine tank 1 after the pipeline 5 is filled, the pressure of the liquid medicine tank 1 can be properly reduced.
The knockout 3 can adopt the design of slope mode, and when according to filling charge and knockout 3's size, when the tail liquid filling was the certain number of times, can use and irritate needle 4 of being connected with the liquid outlet of knockout 3 lowest and carry out the single needle filling, and the liquid medicine is all filled and is accomplished.
If the filling quantity of each bottle needs to be ensured or when a certain valve is in fault or the pressure control is abnormal, the functions of the simultaneous filling and weighing can be only used, and the whole production process of emptying, normal filling and tail liquid filling is realized through the simultaneous filling and weighing.
The method comprises the following specific steps:
the method comprises the steps of firstly, automatically switching to filling while weighing for filling when a production emptying stage, a tail liquid filling stage, pressure control are not constant, liquid level control is not constant and a certain station lacks bottles, and automatically starting a liquid supplementing function to supplement liquid until the filling amount is qualified when the filling amount is detected to be insufficient.
And step two, when the quantitative filling is started, firstly carrying out 100 percent sampling weighing of the quantitative filling after emptying is finished, carrying out calibration according to a weighing result, and switching to sampling weighing after the quantitative filling is qualified.
And step three, sampling and weighing are adopted in the normal quantitative filling process, the sampling rate can be set, if the loading is detected to be calibrated in the sampling process, the loading is automatically calibrated, if the loading is detected to be unqualified in the sampling and weighing process, 100% sampling is switched to be performed and the loading is calibrated, and if the continuous n assembly quantities still cannot be calibrated, an alarm is given to prompt manual dry pre-inspection or switching to the process of filling and weighing.
And step four, directly switching to full weighing and adopting side filling and side weighing to produce under the condition that the filling quantity of each bottle needs to be recorded to ensure that all finished product filling quantities are qualified.
Has the following advantages:
1) in the whole production process, quantitative filling and simultaneous weighing are combined to realize bottle-free non-filling, quick emptying, tail liquid filling and liquid supplementing when liquid medicine is insufficient, so that the production efficiency is improved, and waste of the liquid medicine and manual intervention are reduced;
2) in the whole production process, the filling and weighing can be realized, the filling amount of each bottle of liquid medicine is effectively monitored, and the generation of defective products in the production process is reduced;
3) sampling and weighing can be carried out in the quantitative filling process, the sampling rate can be set, the online calibration of the filling amount can be realized through sampling and weighing, and the manual intervention is reduced;
4) the back suction of filling can be realized, and the phenomenon of dropping liquid is reduced.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (10)
1. A liquid medicine time pressure method filling system which is characterized in that: including medicinal liquid jar (1), filling station (2) and knockout (3), knockout (3) are connected with medicinal liquid jar (1), knockout (3) bottom is equipped with a plurality of liquid outlets along length direction, filling station (2) top is equipped with a plurality of needles (4) of irritating of arranging side by side, each the liquid outlet is connected through pipeline (5) respectively with each needle (4) of irritating, each all be equipped with filling valve (6) and flow control device (7) on pipeline (5), filling station (2) all are equipped with weighing device (21) in the below of each needle (4) of irritating, flow control device (7) and weighing device (21) are used for realizing irritating the limit of container (10) and are called.
2. The liquid medicine time pressure filling system according to claim 1, wherein: each pipeline (5) is also provided with a back suction device (9).
3. The liquid medicine time pressure filling system according to claim 1, wherein: the filling needles (4) are arranged at intervals along the conveying direction of the medicine bottles.
4. The liquid medicine time pressure filling system according to claim 3, wherein: the liquid distributors (3) are obliquely arranged, and liquid outlets connected with the front filling needles (4) in the adjacent filling needles (4) are lower than liquid outlets connected with the rear filling needles (4).
5. The liquid medicine time pressure filling system according to claim 1, wherein: the liquid medicine tank (1) is connected with a pressure regulating device (8).
6. The liquid medicine time pressure filling system according to claim 5, wherein: a liquid level meter is arranged in the liquid medicine tank (1).
7. The liquid medicine time pressure filling system according to any one of claims 1 to 6, wherein: the liquid medicine filling system adopting the time pressure method further comprises a control module, and the weighing device (21), the filling valve (6) and the flow regulating device (7) are in signal connection with the control module.
8. A liquid medicine time pressure filling method, which is performed by using the liquid medicine time pressure filling system according to any one of claims 1 to 7, and comprises the following steps:
s1, emptying before filling: emptying the container (10) before normal filling by adopting a filling and weighing method so as to discharge gas in the liquid distributor (3), the pipeline (5), the filling valve (6) and the filling needle (4);
s2, calibrating the filling quantity: filling the container (10) through the filling valve (6) within a preset time period, weighing the filling amount by the weighing device (21), and if the filling valve (6) is not filled with a preset amount of liquid medicine within the preset time period, filling the container (10) while weighing for liquid supplement; if the filling valve (6) is filled with a preset amount of liquid medicine in a preset time period, the calibration is completed;
s3, normal filling: the filling valve (6) adopts a time pressure method to carry out quantitative normal filling on the container (10);
s4, filling tail liquid: and filling the tail liquid by using a side filling and side weighing device.
9. The filling method of the liquid medicine time pressure filling system according to claim 8, wherein: in the step S3, if there is no container (10) below, the corresponding filling valve (6) is closed, and the other filling valves (6) are opened, and filling is performed by using a side-filling and side-weighing method through the flow rate adjusting device (7); if the amount of the liquid medicine in the lower container (10) is insufficient, filling while weighing for liquid supplement until the amount of the liquid medicine in the container (10) is qualified; if the filling amount of the lower container (10) is qualified, sampling and weighing are carried out, and if the filling amount is not correct, liquid is supplemented by adopting a side filling and side weighing method, and a corresponding filling valve (6) is calibrated.
10. The filling method of the liquid medicine time pressure filling system according to claim 9, wherein: the container (10) is provided with a plurality of filling threshold values, and the opening degree of the flow regulating device (7) is reduced along with the increase of the filling threshold values in the filling process.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210741651.0A CN114906781A (en) | 2022-06-28 | 2022-06-28 | Liquid medicine filling system and liquid medicine filling method adopting time pressure method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210741651.0A CN114906781A (en) | 2022-06-28 | 2022-06-28 | Liquid medicine filling system and liquid medicine filling method adopting time pressure method |
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| CN114906781A true CN114906781A (en) | 2022-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210741651.0A Pending CN114906781A (en) | 2022-06-28 | 2022-06-28 | Liquid medicine filling system and liquid medicine filling method adopting time pressure method |
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| Country | Link |
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| CN (1) | CN114906781A (en) |
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2022
- 2022-06-28 CN CN202210741651.0A patent/CN114906781A/en active Pending
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