CN210528431U - Filling system - Google Patents
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- CN210528431U CN210528431U CN201921503720.4U CN201921503720U CN210528431U CN 210528431 U CN210528431 U CN 210528431U CN 201921503720 U CN201921503720 U CN 201921503720U CN 210528431 U CN210528431 U CN 210528431U
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Abstract
The utility model discloses a filling system, including first station, first filling station, second filling station and the conveyor of weighing, first filling station is equipped with first filling device, is equipped with the second station of weighing between first filling station and the second filling station, and second filling station is equipped with second filling device and third station of weighing, and the diameter of the filling pipeline of first filling device is greater than the diameter of the filling pipeline of second filling device. The utility model further discloses a filling method, including the step: s1, weighing the empty bottle; s2, filling the empty bottles for the first time according to the set filling amount; s3, weighing the bottle body after the first filling; s4, filling the bottle body after the first filling for the second time; and S5, weighing the bottle body after the second filling. The utility model has the advantages of be favorable to compromise production efficiency and filling precision and avoid damaging equipment damage.
Description
Technical Field
The utility model relates to a food, medicine packing method and equipment especially relate to a filling system.
Background
The filling system is the most core part of the whole set of subpackaging equipment, the filling precision is the most important performance index for measuring the filling system, at present, two groups of weighing sensors are generally adopted to respectively weigh a pre-filling medicine bottle (namely tare weight) and a filled medicine bottle (namely gross weight) to obtain the filling weight, but the mode can not ensure that each bottle body can meet the target filling weight, and only can select the qualified bottle body from the target filling weight; the filling precision of the filling system almost still depends on the precision of the filling system, namely a fixed filling quantity is given and the stroke of the pump is obtained through conversion, and the final filling quantity is completely determined by the filling pump and a matched pipeline system; even a filling system with online weighing can only judge the deviation of the filling quantity, the response after automatic calibration at least needs to be effective in the next period, and the precision control of the current filling period cannot be realized.
Chinese patent CN 109592095 a discloses a filling precision control method and apparatus, wherein the coarse filling and the fine filling are separately performed, and segmented control is performed, the bottle body is firstly placed on the weighing sensor, and then quickly filled (i.e. coarse filling) is performed, and after the weighing sensor detects that the weight reaches a set value, then the bottle body is filled at a low speed (i.e. fine filling) until the target filling amount is reached. However, the two times of filling by the method adopt the same set of equipment (namely the coarse filling and the fine filling share the same pump, filling needle and weighing sensor), so that the filling period is longer, the filling efficiency is greatly reduced, the requirement of large-batch high-speed production of pharmaceutical factories cannot be met, the filling mode is not preferable especially for large-capacity bottles such as large infusion bottles, and the filling speed is high in the filling process, especially during the coarse filling, so that the impact force on the bottles is very large, and at the moment, if the weighing sensor is arranged below the bottles, the weighing sensor is very easy to damage.
The filling efficiency can not be ensured when the filling precision is guaranteed in the prior art scheme, and a larger filling needle can be used to ensure the filling efficiency, so that the liquid supplement of several milligrams and more than ten milligrams can not be realized, and the higher filling precision is difficult to achieve.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide one kind and be favorable to compromising production efficiency and filling precision and avoid damaging the filling method that the equipment damaged.
The utility model discloses further provide a filling system suitable for above-mentioned filling method.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a filling method comprising the steps of:
s1, weighing the empty bottle at the first weighing station;
s2, filling the empty bottle for the first time by the first filling device according to the set filling quantity;
s3, weighing the bottle body after the first filling at a second weighing station;
s4, performing second filling on the bottle body after the first filling by the second filling device, where the flow rate of the second filling device is smaller than that of the first filling device, and if the actual first filling amount of the bottle body measured in the target filling amount K, S3 is K1 and the set second filling amount is K2, then K2 is K-K1;
and S5, weighing the bottle body after the second filling at a third weighing station.
As a further improvement of the above technical solution: in the step S5, if the weighing result is within the qualified range, the bottle filling is finished; if the weighing result is lower, the second filling device is used for filling the bottle body until the weighing result reaches the qualified range.
As a further improvement of the above technical solution: when the liquid medicine low level appears in the liquid medicine buffer tank, carry out the tail liquid filling, including the step:
s6, weighing the empty bottle at the first weighing station;
s7, filling the weighed bottle body by a second filling device, and setting the filling quantity as a target filling quantity K;
and S8, weighing the filled bottle body at a third weighing station.
As a further improvement of the above technical solution: if the weighing result is within the qualified range in the step S8, the bottle body is filled; if the weighing result is lower, the second filling device is used for filling the bottle body until the weighing result reaches the qualified range.
As a further improvement of the above technical solution: in the step S7, the second filling device performs fine filling on the plurality of bottles in the same batch one by using a plurality of filling pumps until the tail liquid in the liquid medicine buffer tank is less than the sum of the target filling amount of the bottles in the next batch; when the tail liquid in the liquid medicine buffer tank is less than the sum of the target filling amount of the next batch of bottles, the second filling device gradually reduces the filling pumps participating in filling in step S7.
As a further improvement of the above technical solution: the set filling amount of the first filling in the step S2 is 0.8K to 0.95K.
The utility model provides a filling system, includes first station, the first filling station of weighing, second filling station and is used for carrying the conveyor of bottle, first filling station is equipped with first filling device, first filling station with be equipped with the second station of weighing between the second filling station, second filling station is equipped with second filling device and third station of weighing, the diameter of the filling pipeline of first filling device is greater than the diameter of the filling pipeline of second filling device.
As a further improvement of the above technical solution: the first weighing station, the first filling device, the second weighing station and the second filling device are sequentially arranged along the conveying direction of the conveying device.
As a further improvement of the above technical solution: the third weighing station is located below the second filling device.
Compared with the prior art, the utility model has the advantages of: the utility model discloses a filling method, utilize first weighing station to weigh the empty bottle earlier, the filling of empty bottle is divided into two sections and is carried out and accomplish the coarse filling respectively and utilize the great first filling device of flow to carry out the fine filling, utilize the little second filling device of flow to carry out the fine filling, the production cycle is shortened, and the first filling adopts large-traffic filling, so greatly improved production efficiency, more be fit for the filling of large-capacity bottle, simultaneously the second weighing station can set up in the low reaches of first filling device, avoid the impact when the large-traffic filling of first filling device leads to the equipment to damage, utilize the second weighing station to weigh after the first filling to record the actual loading of first filling and calculate the required filling volume of second filling, combine the second filling of small flow, be favorable to guaranteeing the filling precision (for example when there is the bubble in the filling pipeline of first filling device, leading to the filling volume inaccurate, can utilize the second filling device to supply), utilize the third station of weighing to weigh for the second time after the second time filling, be favorable to detecting whether total filling volume of bottle is qualified.
The utility model discloses a filling system, including first weighing station, first filling station and second filling station, first filling station is equipped with first filling device, be equipped with second weighing station between first filling station and the second filling station, second filling station is equipped with second filling device and third weighing station, the diameter of the filling pipeline of first filling device is greater than the diameter of the filling pipeline of second filling device, make the filling of empty bottle carry out in two sections and utilize the first filling device that the flow is great to accomplish coarse filling respectively, utilize the second filling device that the flow is less to carry out the fine filling, production cycle is shortened, and the filling of first time adopts large-traffic filling, so greatly improved production efficiency, be more suitable for the filling of big capacity bottle, simultaneously the second weighing station sets up the low reaches at first filling device, avoid the impact when the large-traffic filling of first filling device to lead to equipment to damage, whether the final filling amount of the bottle body is qualified or not can be detected through multiple times of weighing.
Drawings
Fig. 1 is a schematic flow chart of the filling method of the present invention.
Fig. 2 is a schematic structural diagram of the filling system of the present invention.
The reference numerals in the figures denote: 1. a first weighing station; 2. a first filling device; 3. a second weighing station; 4. a second filling device; 5. a third weighing station; 6. a conveying device.
Detailed Description
The invention is described in further detail below with reference to the drawings and specific examples.
Fig. 1 shows an embodiment of the filling method of the present invention, and the filling method of the present embodiment includes the following steps:
s1, weighing the empty bottle at the first weighing station 1;
s2, the first filling device 2 fills the empty bottle for the first time according to the set filling quantity;
s3, weighing the bottle body after the first filling at a second weighing station 3;
s4, the second filling device 4 performs second filling on the bottle body after the first filling, the flow rate of the second filling device 4 is smaller than the flow rate of the first filling device 2, and if the actual first filling amount of the bottle body measured in the target filling amount K, S3 is K1 and the set second filling amount is K2, K2 is K-K1;
and S5, weighing the bottle bodies after the second filling at a third weighing station 5. The first weighing station 1, the second weighing station 3 and the third weighing station 5 can adopt the existing weighing sensors and the like to finish weighing; the difference of the flow rates of the first filling device 2 and the second filling device 4 can be realized by changing the diameters of the silica gel pipeline and the filling needle.
The filling method comprises the steps of firstly weighing empty bottles by using a first weighing station 1, filling the empty bottles in two sections, respectively completing coarse filling by using a first filling device 2 with larger flow, and performing fine filling by using a second filling device 4 with smaller flow, wherein the first filling device 2 and the second filling device 4 can simultaneously work, the production period is shortened, and the first filling adopts large-flow filling, so that the production efficiency is greatly improved, the method is more suitable for filling large-volume bottles, meanwhile, a second weighing station 3 can be arranged at the downstream of the first filling device 2, the second weighing station 3 is prevented from being damaged due to impact during large-flow filling of the first filling device 2, more weighing time can be provided, because the stay time of bottles at each station is basically consistent in the production process, if the first weighing station 3 is combined below the first filling device 2 or the second filling device 4, can lead to the time of weighing to shorten like this, and current weighing sensor response speed is difficult to satisfy the requirement, lead to weighing inaccurate easily, utilize the second to weigh station 3 after the first filling and weigh in order to record the actual loading of first filling and calculate and obtain the required filling volume of second filling, be favorable to eliminating the deviation between the actual filling volume of first filling and the setting value, combine the second filling of low discharge, be favorable to guaranteeing the filling precision (for example, there is the bubble in the filling pipeline of first filling device 2, lead to the filling volume inaccurate, can utilize second filling device 4 to supply), utilize the third to weigh station 5 after the second filling and carry out the second weighing, be favorable to detecting whether qualified of the final filling volume of bottle.
Further, in this embodiment, in step S5, if the weighing result is within the qualified range, the bottle filling is finished; if the weighing result is lower, the second filling device 4 is used for filling the bottle until the weighing result reaches the qualified range. The liquid is mended again after weighing for the second time, makes the final filling volume of bottle be close to the setting value, is favorable to further improving the filling precision (for example, exist the bubble in the filling pipeline of first filling device 2, lead to the filling volume inaccurate, can utilize second filling device 4 to supply, second filling device 4 still inaccurate after supplying, supplements once more through the benefit).
Further, in this embodiment, when the liquid medicine low level appears in the liquid medicine buffer tank, carry out the tail liquid filling, include the step:
s6, weighing the empty bottle at the first weighing station 1;
s7, filling the weighed bottle body by the second filling device 4, and setting the filling quantity as a target filling quantity K;
and S8, weighing the filled bottle bodies at a third weighing station 5. Because the liquid medicine low level in the liquid medicine buffer tank skips the first filling device 2 with large flow, and is directly filled by the second filling device 4 with small flow, the reliable and stable operation of the filling system is facilitated, and the filling precision is ensured.
Furthermore, in this embodiment, if the weighing result in the step S8 is within the qualified range, the bottle filling is finished; if the weighing result is lower, the second filling device 4 is used for filling the bottle until the weighing result reaches the qualified range. And after the second weighing, the liquid is replenished, so that the final filling amount of the bottle body is close to a set value, and the filling precision is further improved.
Furthermore, in this embodiment, in step S7, the second filling device 4 precisely fills the plurality of bottles in the same batch by using a plurality of filling pumps in a one-to-one correspondence manner, which is beneficial to ensuring the production efficiency of the second filling until the tail liquid in the liquid medicine buffer tank is less than the sum of the target filling amounts of the bottles in the next batch; when the tail liquid in the liquid medicine buffer tank is less than the sum of the target filling amount of the next batch of bottle bodies, the second filling device 4 gradually decreases the filling pumps involved in the filling in step S7, for example, to one in a 6-4-2-1 manner, so as to reduce the residual tail liquid in the liquid medicine buffer tank as much as possible.
Preferably, the set filling amount of the first filling in step S2 is 0.8K to 0.95K. The set filling amount of the first filling is set to 80% -95%, so that the filling efficiency can be improved to the maximum degree, a margin is reserved for the second filling and subsequent liquid supplementation, and the final filling precision is guaranteed.
The principle of the filling method of the utility model is explained by taking a certain product filled with 5.3ml as an example:
1) assuming that the weighed filling amount after coarse filling is 5 ml;
2) then the target filling amount during fine filling is 0.3ml, and assuming that the filling precision error during fine filling is 2% of soil, the actual total precision is 0.3 x (2% of soil)/5.3 x 100% ═ 0.113% of soil;
3) the target filling amount during fine filling is 0.3ml, and the actual total accuracy is 0.3 x (5% of soil)/5.3 x 100% of soil 0.283% assuming that the accuracy error of filling during fine filling is 5% of soil.
Multiple tests show that precision errors cannot exceed +/-2% when the small-diameter silicone tube is adopted for fine filling, so that the filling precision can meet +/-0.5% of the requirement on the whole.
Fig. 2 shows the utility model discloses an embodiment of filling system, the filling system of this embodiment, including first station 1 of weighing, first filling station, second filling station and be used for carrying the conveyor 6 of bottle, first filling station is equipped with first filling device 2, is equipped with second station 3 of weighing between first filling station and the second filling station, and second filling station is equipped with second filling device 4 and third station 5 of weighing, and the diameter of the filling pipeline of first filling device 2 is greater than the diameter of the filling pipeline of second filling device 4. This filling system, the filling of empty bottle is divided two sections and is gone on and utilize the great first filling device 2 of flow to accomplish coarse filling respectively, utilize the less second filling device 4 of flow to carry out smart filling, production cycle has been shortened, and large-traffic filling is adopted in first filling, so greatly improved production efficiency, be fit for the filling of large-capacity bottle more, the second station 3 that weighs sets up the low reaches at first filling device 2 simultaneously, impact when avoiding the large-traffic filling of first filling device 2 leads to the equipment to damage, can detect whether qualified through the final filling volume of bottle of repetitious weighing.
Further, in this embodiment, the first weighing station 1, the first filling device 2, the second weighing station 3, and the second filling device 4 are sequentially arranged along the conveying direction of the conveying device 6. The first weighing station 1, the first filling device 2, the second weighing station 3 and the second filling device 4 are sequentially arranged along the conveying direction of the conveying device 6, so that the filling system is compact in overall structure, high in operating efficiency and small in occupied area.
Further, in this embodiment, the third weighing station 5 is located below the second filling device 4. Because the second filling device 4 adopts the low-flow filling, even if the third weighing station 5 is arranged below the second filling device 4, the third weighing station 5 is not easy to damage, and on the other hand, the weighing and filling can be realized at the same time, namely, the online weighing is realized.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (3)
1. A filling system, characterized by: including first weighing station (1), first filling station, second filling station and be used for carrying conveyor (6) of bottle, first filling station is equipped with first filling device (2), first filling station with be equipped with second weighing station (3) between the second filling station, the second filling station is equipped with second filling device (4) and third weighing station (5), the diameter of the filling pipeline of first filling device (2) is greater than the diameter of the filling pipeline of second filling device (4).
2. The filling system of claim 1, wherein: the first weighing station (1), the first filling device (2), the second weighing station (3) and the second filling device (4) are sequentially arranged along the conveying direction of the conveying device (6).
3. The filling system of claim 1, wherein: the third weighing station (5) is located below the second filling device (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921503720.4U CN210528431U (en) | 2019-09-10 | 2019-09-10 | Filling system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921503720.4U CN210528431U (en) | 2019-09-10 | 2019-09-10 | Filling system |
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| CN210528431U true CN210528431U (en) | 2020-05-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110467142A (en) * | 2019-09-10 | 2019-11-19 | 楚天科技股份有限公司 | A kind of packaging process and bulking system |
| CN111846308A (en) * | 2020-08-05 | 2020-10-30 | 楚天科技股份有限公司 | Liquid medicine filling method |
-
2019
- 2019-09-10 CN CN201921503720.4U patent/CN210528431U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110467142A (en) * | 2019-09-10 | 2019-11-19 | 楚天科技股份有限公司 | A kind of packaging process and bulking system |
| CN111846308A (en) * | 2020-08-05 | 2020-10-30 | 楚天科技股份有限公司 | Liquid medicine filling method |
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