An exhaust device and exhaust method for preparation packaging

Abstract

The present invention provides an exhaust device for preparation subpackaging and an exhaust method thereof, the exhaust device comprises a conveying pipeline, a first exhaust port and a second exhaust port are provided at both ends, a first valve is provided at the first exhaust port, and a second valve is provided at the second exhaust port; a conveying pump, the conveying pump is arranged in the conveying pipeline; a material storage pipeline, the material storage pipeline is connected with the pipeline between the first exhaust port of the conveying pipeline and the conveying pump, a third valve is provided at the material storage pipeline, and is used to convey raw materials; a subpackaging pipeline, the subpackaging pipeline is connected with the pipeline between the second exhaust port of the conveying pipeline and the conveying pump, and a fourth valve is provided at the subpackaging pipeline, and is used to subpack raw materials. The exhaust device provided by the present invention can perform exhaust operation before subpackaging during the process of using the exhaust device, thereby improving the accuracy during subpackaging and the safety of the entire process, and solving the problem that the current packaging exhaust process has more pre-processing operations, the exhaust effect is unstable, and certain preparation waste will be caused.

Description

Technical Field

[0001] The invention relates to the field of preparation packaging, and in particular to an exhaust device and an exhaust method for preparation packaging. Background Art

[0002] In fully automatic quantitative packaging production lines or equipment in the fields of preparations, heat sealing and other operations are usually performed after the quantitative packaging is completed. There will be some air in the preparation liquid bag before and after packaging, which will affect the air pressure balance and packaging accuracy of the packaging process, and will also lead to poor heat sealing effect of the liquid bag, incomplete sealing, and thus affect the quality of the packaged preparation.

[0003] To address this problem, the current main solution is to use a splint or manually squeeze the air out of the bag before packaging, and then remove the air from the pipeline by inlet liquid. This exhaust process requires a lot of pre-processing, and the exhaust effect is unstable and will cause a certain amount of preparation waste. Summary of the invention

[0004] The present invention provides an exhaust device and an exhaust method for preparation packaging, which solve the problems that the current packaging exhaust process has more pre-processing operations, the exhaust effect is unstable and certain preparation waste is caused.

[0005] The present invention provides an exhaust device for preparation packaging, comprising:

[0006] The exhaust device is used to transport the raw materials in the original liquid bag to the sub-packaging bag, and includes:

[0007] A delivery pipeline, wherein a first exhaust port and a second exhaust port are provided at both ends of the delivery pipeline, a first valve is provided at the first exhaust port, and a second valve is provided at the second exhaust port;

[0008] A delivery pump, wherein the delivery pump is arranged in the delivery pipeline;

[0009] A material storage pipeline, the material storage pipeline is connected with the first exhaust port of the delivery pipeline and the pipeline between the delivery pump, and a third valve is provided at the material storage pipeline for delivering raw materials;

[0010] The subpackaging pipeline is connected with the second exhaust port of the delivery pipeline and the pipeline between the delivery pump. The subpackaging pipeline is provided with a fourth valve for subpackaging raw materials.

[0011] According to the exhaust device for preparation subpackaging provided by the present invention, at least two subpackaging pipelines are provided, and each of the subpackaging pipelines is provided with the fourth valve.

[0012] According to an exhaust device for preparation packaging provided by the present invention, the exhaust device also includes:

[0013] A first sensor is disposed in the delivery pipeline and / or the dispensing pipeline.

[0014] According to an exhaust device for preparation packaging provided by the present invention, the exhaust device also includes:

[0015] A second sensor is disposed at the second exhaust port.

[0016] According to the exhaust device for preparation packaging provided by the present invention, the first sensor is a pressure sensor, and the second sensor is a bubble sensor.

[0017] According to the exhaust device for preparation packaging provided by the present invention, at least two material storage pipelines are provided, and each of the material storage pipelines is provided with the third valve.

[0018] According to an exhaust device for preparation packaging provided by the present invention, the delivery pump includes a peristaltic pump or a diaphragm pump.

[0019] The embodiment of the present invention further provides an exhaust method using the above exhaust device, comprising:

[0020] Open the first valve and the fourth valve, close the second valve and the third valve, and control the delivery pump to pump air toward the first exhaust port;

[0021] Open the second valve and the third valve, close the first valve and the fourth valve, and control the delivery pump to inlet and exhaust liquid toward the second exhaust port;

[0022] Open the fourth valve, close the second valve, and control the delivery pump to deliver the raw materials in the original liquid bag to the sub-packaging bag.

[0023] According to an exhaust method provided by the present invention, after the step of opening the first valve and the fourth valve, closing the second valve and the third valve, and controlling the delivery pump to pump air toward the first exhaust port, and before the step of opening the second valve and the third valve, closing the first valve and the fourth valve, and controlling the delivery pump to take in liquid and exhaust air toward the second exhaust port, the method further includes:

[0024] Obtaining the pressure value in the delivery pipeline and / or the filling pipeline;

[0025] When the pressure value does not reach the preset negative pressure, the delivery pump is controlled to continue to pump air toward the first exhaust port;

[0026] When the pressure value reaches the preset negative pressure, the subsequent steps are executed.

[0027] According to a venting method provided by the present invention, after the step of opening the second valve and the third valve, closing the first valve and the fourth valve, and controlling the delivery pump to carry out liquid intake and exhaust toward the second exhaust port, and before the step of opening the fourth valve, closing the second valve, and controlling the delivery pump to deliver the raw material in the original liquid bag to the sub-packaging bag, the method further includes:

[0028] Get the position of raw materials in the transportation pipeline;

[0029] When the raw material has not reached the second exhaust port, the delivery pump is controlled to continue to inlet and exhaust liquid toward the second exhaust port;

[0030] When the raw material reaches the second exhaust port, the subsequent steps are performed.

[0031] According to an exhaust method provided by the present invention, after the step of opening the fourth valve, closing the second valve, and controlling the delivery pump to deliver the raw material in the stock liquid bag to the sub-packaging bag, the method further includes:

[0032] The air bubbles in the packaging bag are exhausted until all the gas in the packaging bag is exhausted.

[0033] The exhaust device and exhaust method for preparation packaging provided by the present invention provide a delivery pipeline with a delivery pump, and a storage pipeline for conveying raw materials and a packaging pipeline for packaging are provided on the delivery pipeline, and valves are correspondingly provided in each pipeline, so that during the use of the exhaust device, exhaust operations can be performed before packaging, thereby improving the accuracy of packaging and the safety of the entire process, and solving the problems that the current packaging exhaust process has more pre-processing operations, the exhaust effect is unstable, and a certain amount of preparation waste will be caused. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 is a schematic diagram of an exhaust device for preparation packaging provided by the present invention;

[0036] Figure 2 This is one of the flow diagrams of the exhaust method provided by the present invention;

[0037] Figure 3 This is the second schematic flow diagram of the exhaust method provided by the present invention;

[0038] Figure 4 This is the third flow chart of the exhaust method provided by the present invention;

[0039] Figure 5 It is a structural schematic diagram of a control system of the exhaust method provided by the present invention;

[0040] Figure 6 It is a structural schematic diagram of the electronic device provided by the present invention.

[0041] Reference numerals:

[0042] 10. Liquid bag; 20. Packing bag; 100. Delivery pipeline; 1001. First exhaust port; 1002. Second exhaust port; 1003. First valve; 1004. Second valve; 200. Delivery pump; 300. Storage pipeline; 3001. Third valve; 400. Packing pipeline; 4001. Fourth valve; 500. First sensor; 600. Second sensor; 501. First control module; 502. Second control module; 503. Third control module; 610. Processor; 620. Communication interface; 630. Memory; 640. Communication bus. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] In the current preparation packaging process, venting of pipes and liquid bags is basically not considered, or the gas in the packaging bag is manually vented before packaging. This venting method cannot completely remove the gas in the pipes and liquid bags, which may affect the accuracy of packaging and the safety of the packaging process.

[0045] In order to solve the above problems, this embodiment proposes an exhaust device for preparation packaging. Figure 1 The exhaust device for preparation packaging provided by the present invention is described, and the exhaust device is used to transport the raw materials (preparation liquid) in the original liquid bag 10 to the packaging bag 20. The exhaust device includes: a conveying pipeline 100, a conveying pump 200, a material storage pipeline 300 and a packaging pipeline 400.

[0046] The delivery pipeline 100 is the main pipeline of the entire exhaust device, and the two ends of the delivery pipeline 100 are provided with a first exhaust port 1001 and a second exhaust port 1002. A first valve 1003 is provided at the first exhaust port 1001, and a second valve 1004 is provided at the second exhaust port 1002. The first valve 1003 is used to control the opening and closing of the first exhaust port 1001, and the second valve 1004 is used to control the opening and closing of the second exhaust port 1002.

[0047] The delivery pump 200 is arranged in the delivery pipeline 100, and the delivery pump 200 includes one of a peristaltic pump and a diaphragm pump. Among them, the peristaltic pump delivers fluid by alternately squeezing and releasing the elastic delivery hose of the peristaltic pump. Negative pressure is formed in the tube, thereby driving the liquid to flow. The diaphragm pump is equipped with an elastic diaphragm in each of the two symmetrical working chambers, and the connecting rod connects the two diaphragms into one. After the compressed air enters the air distribution valve from the air inlet joint of the diaphragm pump, it pushes the diaphragms in the two working chambers to move, driving the two diaphragms connected by the connecting rod to move synchronously. At the same time, the gas in the other working chamber is discharged from the back of the diaphragm to the outside of the pump. Once the operation is completed, the air distribution mechanism automatically introduces compressed air into the other working chamber, pushing the diaphragm to move in the opposite direction, forming a synchronous reciprocating motion of the two diaphragms. The volume of the working chamber changes, and the liquid is continuously sucked in and discharged. The delivery pump 200 can deliver gas or raw materials to the first exhaust port 1001 or the second exhaust port 1002.

[0048] The material storage pipeline 300 is connected to the pipeline between the first exhaust port 1001 of the delivery pipeline 100 and the delivery pump 200. The material storage pipeline 300 is provided with a third valve 3001, and the material storage pipeline 300 is used to deliver raw materials. The third valve 3001 is used to control the opening and closing of the delivery of raw materials.

[0049] The subpackaging pipeline 400 is connected to the pipeline between the second exhaust port 1002 of the delivery pipeline 100 and the delivery pump 200. The subpackaging pipeline 400 is provided with a fourth valve 4001, and the subpackaging pipeline 400 is used for subpackaging raw materials. The fourth valve 4001 is used to control the opening and closing of the subpackaging raw materials.

[0050] When the original liquid bag 10 is connected to the material storage pipe 300 and the sub-packaging bag 20 is connected to the sub-packaging pipe 400, if it is necessary to use the exhaust device to exhaust.

[0051] First, the gas in the sub-packaging bag 20 needs to be discharged, the first valve 1003 and the fourth valve 4001 are opened, and the second valve 1004 and the third valve 3001 are closed. In this way, the first exhaust port 1001 is opened, and the sub-packaging bag 20 is connected with the first exhaust port 1001. After the sub-packaging bag 20 is connected with the first exhaust port 1001, the delivery pump 200 is turned on to run in the first direction, and the delivery pump 200 is controlled to pump air toward the first exhaust port 1001, so that the air in the sub-packaging bag 20 is discharged from the first exhaust port 1001. The air pressure in the sub-packaging bag is reduced, thereby reducing the influence of the gas in the sub-packaging bag on the accuracy of the sub-packaging when the preparation liquid is quantitatively packaged, reducing the risk of excessive air pressure in the liquid bag damaging consumables during packaging and the labor cost of manual exhaust, thereby improving the safety of the packaging process and ensuring the accuracy of the quantitative packaging of the preparation.

[0052] After exhausting the air in the sub-packaging bag 20, the delivery pump 200 is closed, the second valve 1004 and the third valve 3001 are opened, and the first valve 1003 and the fourth valve 4001 are closed. Thus, the second exhaust port 1002 is opened, and the delivery pipeline 100 is connected with the second exhaust port 1002. After the delivery pipeline 100 is connected with the second exhaust port 1002, the delivery pump 200 is turned on to run in the second direction (opposite to the first direction), and the delivery pump 200 is controlled to enter and exhaust liquid toward the second exhaust port 1002, and the air in the delivery pipeline 100 is exhausted from the second exhaust port 1002. Reduce the influence of air in the entire consumables on the precision of sub-packaging.

[0053] After exhausting the air in the delivery pipeline 100, the delivery pump 200 is closed, the fourth valve 4001 is opened, and the second valve 1004 is closed, thereby connecting the stock liquid bag 10 and the sub-packaging bag 20, and the delivery pump 200 is controlled to run in the second direction to deliver the raw materials in the stock liquid bag 10 to the sub-packaging bag 20. After completing the sub-packaging process, each sub-packaging bag 20 is heat-sealed and the pipeline consumables are taken out.

[0054] The exhaust device for preparation subpackaging provided by the present invention is provided with a delivery pipeline with a delivery pump, and a storage pipeline for conveying raw materials and a subpackaging pipeline are provided on the delivery pipeline, and valves are correspondingly provided in each pipeline, so that during the use of the exhaust device, exhaust operation can be performed before subpackaging, thereby improving the accuracy during subpackaging and the safety of the entire process, and solving the problems that the current packaging exhaust process has more pre-processing operations, the exhaust effect is unstable, and a certain amount of preparation waste will be caused.

[0055] In an example provided in this application, Figure 1As shown, at least two sub-packaging pipelines 400 are provided, each of which is connected to the pipeline between the second exhaust port 1002 of the delivery pipeline 100 and the delivery pump 200, and each sub-packaging pipeline 400 is provided with a fourth valve 4001, and each sub-packaging pipeline 400 is used for sub-packaging raw materials. The corresponding fourth valve 4001 on the sub-packaging pipeline 400 is used to control the opening and closing of the sub-packaging raw materials.

[0056] When the original liquid bag 10 is connected to the material storage pipe 300, and the multiple sub-packaging bags 20 are connected to the multiple sub-packaging pipes 400, if it is necessary to use the exhaust device to exhaust.

[0057] First, the gas in the multiple sub-packaging bags 20 needs to be discharged, the first valve 1003 and the multiple fourth valves 4001 are opened, and the second valve 1004 and the third valve 3001 are closed. Thus, the first exhaust port 1001 is opened, and the multiple sub-packaging bags 20 are connected to the first exhaust port 1001. After the multiple sub-packaging bags 20 are connected to the first exhaust port 1001, the delivery pump 200 is turned on to run in the first direction, and the delivery pump 200 is controlled to pump air toward the first exhaust port 1001, so that the air in the multiple sub-packaging bags 20 is discharged from the first exhaust port 1001.

[0058] After exhausting the air in the plurality of sub-packaging bags 20, the delivery pump 200 is closed, the second valve 1004 and the third valve 3001 are opened, and the first valve 1003 and the plurality of fourth valves 4001 are closed. Thus, the second exhaust port 1002 is opened, and the delivery pipeline 100 is connected to the second exhaust port 1002. After the delivery pipeline 100 is connected to the second exhaust port 1002, the delivery pump 200 is turned on to run in a second direction (opposite to the first direction), and the delivery pump 200 is controlled to inlet and exhaust liquid toward the second exhaust port 1002, so that the air in the delivery pipeline 100 is exhausted from the second exhaust port 1002.

[0059] After exhausting the air in the delivery pipe 100, the delivery pump 200 is closed, the multiple fourth valves 4001 are opened, and the second valve 1004 is closed, thereby connecting the raw liquid bag 10 and the multiple sub-packaging bags 20, and the delivery pump 200 is controlled to run in the second direction to deliver the raw materials in the raw liquid bag 10 to each sub-packaging bag 20.

[0060] In one embodiment provided in the present application, Figure 1 As shown, the exhaust device further includes: a first sensor 500. The first sensor 500 can be arranged on the delivery pipeline 100 or the sub-packaging pipeline 400, or can be arranged on both the delivery pipeline 100 and the sub-packaging pipeline 400. When there are multiple sub-packaging pipelines 400, each sub-packaging pipeline 400 can be provided with a first sensor 500.

[0061] The first sensor 500 may be a pressure sensor. The pressure sensor is used to obtain the pressure value in the delivery pipeline 100 and / or the sub-packaging pipeline 400. In this embodiment, the pressure sensor is arranged between the delivery pump 200 and the sub-packaging bag 20 to detect the pressure between the delivery pump 200 and the sub-packaging bag 20.

[0062] In the process of discharging the air in the sub-packaging bag 20, the pressure value in the corresponding pipeline is detected by the pressure sensor. When the pressure value does not reach the preset negative pressure, it means that there is still air in the sub-packaging bag 20, and the delivery pump 200 is controlled to continue to pump air toward the first exhaust port 1001. When the pressure value reaches the preset negative pressure, it means that the air in the sub-packaging bag 20 has been discharged, and the delivery pump 200 is closed to discharge the gas from the subsequent delivery pipeline 100.

[0063] In one embodiment provided in the present application, Figure 1 As shown, the exhaust device further includes: a second sensor 600. The second sensor 600 may be disposed at the second exhaust port 1002.

[0064] The second sensor 600 may be a bubble sensor. The bubble sensor is used to obtain the position of the raw material in the conveying pipeline 100. In this embodiment, the bubble sensor is disposed near the second exhaust port 1002 of the conveying pipeline 100.

[0065] In the process of exhausting the air in the delivery pipeline 100, the position of the raw material in the delivery pipeline 100 is detected by the bubble sensor. When the raw material has not reached the second exhaust port 1002, that is, when the bubble sensor detects bubbles, the delivery pump 200 is controlled to continue to enter and exhaust liquid toward the second exhaust port. When the raw material reaches the second exhaust port 1002, that is, when the bubble sensor does not detect bubbles, the delivery pump 200 is turned off to carry out the subsequent raw material delivery work.

[0066] In an example provided in this application, Figure 1 As shown, at least two material storage pipelines 300 are provided, and a variety of different raw materials can be arranged in each material storage pipeline 300. Each material storage pipeline 300 is connected to the pipeline between the first exhaust port 1001 of the delivery pipeline 100 and the delivery pump 200, and a third valve 3001 is provided at each material storage pipeline 300, and the material storage pipeline 300 is used to deliver the raw materials. The third valve 3001 corresponding to each material storage pipeline 300 is used to control the opening and closing of the delivery of the corresponding raw material, and the opening degree of the third valve 3001 can control the delivery ratio of different raw materials.

[0067] When multiple raw liquid bags 10 are connected to the material storage pipeline 300, and the sub-packaging bags 20 are connected to the sub-packaging pipeline 400, if it is necessary to use the exhaust device to exhaust.

[0068] First, the gas in the sub-packaging bag 20 needs to be discharged, the first valve 1003 and the fourth valve 4001 are opened, and the second valve 1004 and the plurality of third valves 3001 are closed. Thus, the first exhaust port 1001 is opened, and the sub-packaging bag 20 is connected to the first exhaust port 1001. After the sub-packaging bag 20 is connected to the first exhaust port 1001, the delivery pump 200 is turned on to run in the first direction, and the delivery pump 200 is controlled to pump air toward the first exhaust port 1001, so that the air in the sub-packaging bag 20 is discharged from the first exhaust port 1001.

[0069] After the air in the sub-packaging bag 20 is exhausted, that is, after the first sensor detects that the pressure value is maintained at a certain value for a period of time, or when the pressure value reaches the preset evacuation pressure value, the delivery pump 200 is turned off, the second valve 1004 and the plurality of third valves 3001 are opened, and the first valve 1003 and the fourth valve 4001 are closed. Thus, the second exhaust port 1002 is opened, and the delivery pipeline 100 is connected with the second exhaust port 1002. After the delivery pipeline 100 is connected with the second exhaust port 1002, the delivery pump 200 is turned on to run in the second direction (opposite to the first direction), and the delivery pump 200 is controlled to enter and exhaust liquid toward the second exhaust port 1002, so that the air in the delivery pipeline 100 is discharged from the second exhaust port 1002 through the liquid in the original liquid bag 10.

[0070] After the air in the delivery pipe 100 is exhausted, that is, when the second sensor detects the flow of liquid, it means that the delivery pipe 100 is emptied of gas and filled with liquid, and it is necessary to proceed to the next step of packaging the preparation, close the delivery pump 200, open the fourth valve 4001, and close the second valve 1004, thereby connecting the multiple stock liquid bags 10 and the sub-packaging bags 20, and control the delivery pump 200 to run in the second direction to deliver the raw materials in the multiple stock liquid bags 10 to the sub-packaging bags 20.

[0071] The present application also provides an exhaust method using the above exhaust device, the structure of the exhaust device is as follows: Figure 1 As shown, no further description is given here.

[0072] like Figure 2 As shown, the exhaust method comprises the following steps:

[0073] Step S201: Open the first valve and the fourth valve, close the second valve and the third valve, and control the delivery pump to pump air toward the first exhaust port.

[0074] When the original liquid bag 10 is connected to the material storage pipe 300 and the sub-packaging bag 20 is connected to the sub-packaging pipe 400, if it is necessary to use the exhaust device to exhaust.

[0075] First, the gas in the sub-packaging bag 20 needs to be discharged, and the first valve 1003 and the fourth valve 4001 are opened, and the second valve 1004 and the third valve 3001 are closed. Thus, the first exhaust port 1001 is opened, and the sub-packaging bag 20 is connected with the first exhaust port 1001. After the sub-packaging bag 20 is connected with the first exhaust port 1001, the delivery pump 200 is turned on to run in the first direction, and the delivery pump 200 is controlled to pump air toward the first exhaust port 1001, so that the air in the sub-packaging bag 20 is discharged from the first exhaust port 1001.

[0076] Step S202: Open the second valve and the third valve, close the first valve and the fourth valve, and control the delivery pump to take in liquid and exhaust gas toward the second exhaust port.

[0077] After the air in the sub-packaging bag 20 is exhausted, the delivery pump 200 is closed, the second valve 1004 and the third valve 3001 are opened, and the first valve 1003 and the fourth valve 4001 are closed. Thus, the second exhaust port 1002 is opened, and the delivery pipeline 100 is connected with the second exhaust port 1002. After the delivery pipeline 100 is connected with the second exhaust port 1002, the delivery pump 200 is turned on to run in the second direction (opposite to the first direction), and the delivery pump 200 is controlled to enter and exhaust liquid toward the second exhaust port 1002, so that the air in the delivery pipeline 100 is exhausted from the second exhaust port 1002.

[0078] Step S203: Open the fourth valve, close the second valve, and control the delivery pump to deliver the raw materials in the stock liquid bag to the sub-packaging bag.

[0079] After exhausting the air in the delivery pipeline 100, the delivery pump 200 is closed, the fourth valve 4001 is opened, and the second valve 1004 is closed, thereby connecting the stock liquid bag 10 and the sub-packaging bag 20, and the delivery pump 200 is controlled to run in the second direction to deliver the raw materials in the stock liquid bag 10 to the sub-packaging bag 20. After completing the sub-packaging process, each sub-packaging bag 20 is heat-sealed and the pipeline consumables are taken out.

[0080] In one embodiment, the controlling the delivery pump to deliver the raw material in the original liquid bag to the sub-packaging bag comprises:

[0081] The air bubbles in the packaging bag are exhausted until all the gas in the packaging bag is exhausted.

[0082] Understandably, a filling bubble sensor is provided between the liquid outlet of each filling bag 20 and the corresponding fourth valve 4001. During the filling process, tiny bubbles may penetrate into each filling bag 20. The filling bubble sensor is used to detect whether the residual trace gas in the filling bag 20 is extracted from the filling bag 20.

[0083] Open the fourth valve 4001 corresponding to any of the sub-packaging bags 20, and reversely transport through the delivery pump 200 (i.e., reversely pump out the liquid in the sub-packaging bag). The gas in the sub-packaging bag 20 will be reversely transported along with the liquid (the gas in the sub-packaging bag will gather near the liquid outlet of the sub-packaging bag due to floating). When the sub-packaging bubble sensor corresponding to the sub-packaging bag detects the passage of bubbles, the delivery pump 200 is stopped, and then the sub-packaging bag is heat-sealed. The above corresponding operations are performed on other sub-packaging bags in turn to complete the heat sealing of all the sub-packaging bags 20.

[0084] The exhaust method provided by the present invention provides a delivery pipeline with a delivery pump, and provides a storage pipeline for conveying raw materials and a packaging pipeline for packaging on the delivery pipeline, and correspondingly provides valves in each pipeline, so that in the process of using the exhaust device, exhaust operation can be performed before packaging, thereby improving the accuracy during packaging and the safety of the entire process, and solving the problem that the current packaging exhaust process has more pre-processing operations, the exhaust effect is unstable, and a certain amount of preparation waste will be caused.

[0085] like Figure 3 As shown, step S201: opening the first valve and the fourth valve, closing the second valve and the third valve, and controlling the delivery pump to pump air toward the first exhaust port, and step S202: opening the second valve and the third valve, closing the first valve and the fourth valve, and controlling the delivery pump to take in liquid and exhaust air toward the second exhaust port also include:

[0086] Step S301: Obtain the pressure value in the delivery pipeline and / or the filling pipeline.

[0087] Step S302: When the pressure value does not reach the preset negative pressure, the delivery pump is controlled to continue to pump air toward the first exhaust port.

[0088] Step S303: When the pressure value reaches the preset negative pressure, the subsequent steps are executed.

[0089] Specifically, in the process of discharging the air in the sub-packaging bag 20, the pressure value in the corresponding pipeline is detected by the pressure sensor. When the pressure value does not reach the preset negative pressure, it means that there is still air in the sub-packaging bag 20, and the delivery pump 200 is controlled to continue to pump air toward the first exhaust port 1001. When the pressure value reaches the preset negative pressure, it means that the air in the sub-packaging bag 20 has been discharged, and the delivery pump 200 is closed to discharge the gas from the subsequent delivery pipeline 100.

[0090] like Figure 4 As shown, after the step of opening the second valve and the third valve, closing the first valve and the fourth valve, and controlling the delivery pump to carry out liquid intake and exhaust toward the second exhaust port,

[0091] Step S401: Acquire the position of the raw material in the conveying pipeline.

[0092] Step S402: When the raw material has not reached the second exhaust port, the delivery pump is controlled to continue to carry out liquid intake and exhaust toward the second exhaust port.

[0093] Step S403: When the raw material reaches the second exhaust port, the subsequent steps are performed.

[0094] Specifically, in the process of exhausting the air in the delivery pipeline 100, the position of the raw material in the delivery pipeline 100 is detected by the bubble sensor. When the raw material has not reached the second exhaust port 1002, that is, when the bubble sensor has not detected bubbles, the delivery pump 200 is controlled to continue to inlet and exhaust liquid toward the second exhaust port. When the raw material reaches the second exhaust port 1002, that is, when the bubble sensor has detected bubbles, the delivery pump 200 is turned off to carry out the subsequent raw material delivery work.

[0095] The control system of the exhaust method provided by the present invention is described below. The control system of the exhaust method described below and the exhaust method described above can be referred to each other.

[0096] like Figure 5 As shown, the control system of the exhaust method includes: a first control module 501 , a second control module 502 and a third control module 503 .

[0097] The first control module 501 is used to open the first valve and the fourth valve, close the second valve and the third valve, and control the delivery pump to pump air toward the first exhaust port. The second control module 502 is used to open the second valve and the third valve, close the first valve and the fourth valve, and control the delivery pump to take in liquid and exhaust air toward the second exhaust port. The third control module 503 is used to open the fourth valve, close the second valve, and control the delivery pump to deliver the raw materials in the original liquid bag to the sub-packaging bag.

[0098] Figure 6 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 6As shown, the electronic device may include: a processor 610, a communication interface 620, a memory 630 and a communication bus 640, wherein the processor 610, the communication interface 620 and the memory 630 communicate with each other through the communication bus 640. The processor 610 may call the logic instructions in the memory 630 to execute the exhaust method, which includes: opening the first valve and the fourth valve, closing the second valve and the third valve, and controlling the delivery pump to pump air toward the first exhaust port; opening the second valve and the third valve, closing the first valve and the fourth valve, and controlling the delivery pump to inlet and exhaust liquid toward the second exhaust port; opening the fourth valve, closing the second valve, and controlling the delivery pump to deliver the raw materials in the original liquid bag to the sub-packaging bag.

[0099] In addition, the logic instructions in the above-mentioned memory 630 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the control method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0100] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the exhaust method provided by the above-mentioned control methods, which includes: opening the first valve and the fourth valve, closing the second valve and the third valve, and controlling the delivery pump to draw air toward the first exhaust port; opening the second valve and the third valve, closing the first valve and the fourth valve, and controlling the delivery pump to intake and exhaust liquid toward the second exhaust port; opening the fourth valve, closing the second valve, and controlling the delivery pump to deliver the raw materials in the original liquid bag to the sub-packaging bag.

[0101] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, it is implemented to execute the exhaust method provided by the above-mentioned methods, the method comprising: opening the first valve and the fourth valve, closing the second valve and the third valve, and controlling the delivery pump to draw air toward the first exhaust port; opening the second valve and the third valve, closing the first valve and the fourth valve, and controlling the delivery pump to intake and exhaust liquid toward the second exhaust port; opening the fourth valve, closing the second valve, and controlling the delivery pump to deliver the raw materials in the original liquid bag to the sub-packaging bag.

[0102] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0103] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An exhaust method for an exhaust device, characterized in that: The exhaust device is used to transport the raw materials in the original liquid bag to the sub-packaging bag, and includes: A delivery pipeline, wherein a first exhaust port and a second exhaust port are provided at both ends of the delivery pipeline, a first valve is provided at the first exhaust port, and a second valve is provided at the second exhaust port; A delivery pump, wherein the delivery pump is arranged in the delivery pipeline; A material storage pipeline, the material storage pipeline is connected with the first exhaust port of the delivery pipeline and the pipeline between the delivery pump, and a third valve is provided at the material storage pipeline for delivering raw materials; a subpackaging pipeline, the subpackaging pipeline being connected to the pipeline between the second exhaust port of the delivery pipeline and the delivery pump, and the subpackaging pipeline being provided with a fourth valve for subpackaging raw materials; The exhaust method comprises: Opening the first valve and the fourth valve, closing the second valve and the third valve, and controlling the delivery pump to pump air toward the first exhaust port; Open the second valve and the third valve, close the first valve and the fourth valve, and control the delivery pump to intake and exhaust liquid toward the second exhaust port; The fourth valve is opened, the second valve is closed, and the delivery pump is controlled to deliver the raw materials in the original liquid bag to the sub-packaging bag.

2. The exhaust method according to claim 1, characterized in that: After the step of opening the first valve and the fourth valve, closing the second valve and the third valve, and controlling the delivery pump to pump air toward the first exhaust port, and before the step of opening the second valve and the third valve, closing the first valve and the fourth valve, and controlling the delivery pump to take in liquid and exhaust air toward the second exhaust port, the method further includes: Obtaining the pressure value in the delivery pipeline and / or the filling pipeline; When the pressure value does not reach the preset negative pressure, controlling the delivery pump to continue to pump air toward the first exhaust port; When the pressure value reaches the preset negative pressure, the subsequent steps are executed.

3. The exhaust method according to claim 1, characterized in that: After the step of opening the second valve and the third valve, closing the first valve and the fourth valve, and controlling the delivery pump to carry out liquid intake and exhaust toward the second exhaust port, and before the step of opening the fourth valve, closing the second valve, and controlling the delivery pump to transport the raw material in the original liquid bag to the sub-packaging bag, the method further includes: Obtaining the position of the raw material in the conveying pipeline; When the raw material has not reached the second exhaust port, controlling the delivery pump to continue to carry out liquid intake and exhaust toward the second exhaust port; When the raw material reaches the second exhaust port, the subsequent steps are performed.

4. The exhaust method according to claim 1, characterized in that: After the step of opening the fourth valve, closing the second valve, and controlling the delivery pump to deliver the raw material in the stock liquid bag to the sub-packaging bag, the following steps are further included: The air bubbles in the packaging bag are exhausted until all the gas in the packaging bag is exhausted.

5. The exhaust method according to claim 1, characterized in that: There are at least two dispensing pipelines, and each dispensing pipeline is provided with the fourth valve.

6. The exhaust method according to claim 1, characterized in that: The exhaust device also includes: A first sensor is disposed in the delivery pipeline and / or the dispensing pipeline.

7. The exhaust method according to claim 6, characterized in that: The exhaust device also includes: A second sensor is disposed at the second exhaust port.

8. The exhaust method according to any one of claims 1 or 5-7, characterized in that: There are at least two material storage pipelines, and each of the material storage pipelines is provided with the third valve.

9. The exhaust method according to any one of claims 1 or 5-7, characterized in that: The delivery pump includes one of a peristaltic pump and a diaphragm pump.

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