A packaging line

Abstract

The utility model discloses a kind of packaging production lines, including main pipeline, pneumatic booster pump, multiple packaging machines and control system;Pneumatic booster pump input end is connected with main pipeline, and output end is equipped with booster tank, and booster tank is connected with high-pressure main pipe, and high-pressure main pipe is equipped with multiple branch pipes;Multiple packaging machines are set up one-to-one with branch pipe, and each packaging machine is equipped with gas inlet, and the gas inlet of multiple packaging machines is connected with corresponding branch pipe respectively;Control system is electrically connected with multiple packaging machines and pneumatic booster pump respectively.By setting pneumatic booster pump and high-pressure main pipe, main pipeline does not need to maintain high pressure, only needs to carry out local modification to existing packaging production line, installs pneumatic booster pump as needed, saves resource while effectively reducing the layout cost of packaging production line.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, and in particular to a packaging production line. Background Technology

[0002] Vacuum packaging machines use high-pressure air guns to blow inert gases (such as nitrogen) or mixed gases (such as a combination of carbon dioxide, nitrogen, and oxygen) into the vacuum bags during packaging operations. This inhibits the growth and reproduction of microorganisms and slows down the oxidation and deterioration process. Each air release requires an upstream high-pressure pipeline, necessitating increased pipeline pressure to maintain adequate air pressure. However, the air gun's release time is extremely short, while the high-pressure pipeline must maintain high pressure for extended periods, leading to high-load operation of the air compressor and wasted resources. Furthermore, modifying the existing pipelines when adding or reducing the number of packaging machines presents certain difficulties. Utility Model Content

[0003] The purpose of this invention is to provide a packaging production line that is low in cost and flexible in layout.

[0004] To achieve this objective, the present invention adopts the following technical solution: a packaging production line, comprising a main pipeline, a pneumatic booster pump, multiple packaging machines, and a control system; the input end of the pneumatic booster pump is connected to the main pipeline, and the output end is provided with a booster tank, the booster tank is connected to a high-pressure main pipe, and the high-pressure main pipe is provided with multiple branch pipes; the multiple packaging machines are arranged one-to-one with the branch pipes, each packaging machine is provided with an air inlet, and the air inlets of the multiple packaging machines are respectively connected to the corresponding branch pipes; the control system is electrically connected to the multiple packaging machines and the pneumatic booster pump respectively.

[0005] Preferably, the input end of the booster tank is connected to a first filter, which is used to filter water and oil from the gas.

[0006] Preferably, a second filter is connected between the main pipeline and the pneumatic booster pump.

[0007] Preferably, the input end of the second filter is provided with a check valve and a pressure reducing valve connected in series along the direction of media flow.

[0008] Preferably, both the input end of the pneumatic booster pump and the output end of the booster tank are equipped with pressure gauges, and the pressure gauges are electrically connected to the control system.

[0009] Preferably, the branch pipe is provided with a first regulating valve.

[0010] Preferably, a second regulating valve is provided on the pipeline between the pneumatic booster pump and the main pipeline.

[0011] Preferably, there are two pneumatic booster pumps, which are connected in parallel and connected to the same high-pressure main pipe.

[0012] Preferably, the high-pressure main pipe is a stainless steel pipe, and the branch pipe is a stainless steel flexible hose that is sealed and connected to the high-pressure main pipe.

[0013] The beneficial effects of this invention are as follows: When the packaging production line is working, the pneumatic booster pump draws medium- and low-pressure gas from the main pipeline. Then, the reciprocating movement of the piston performs work on the gas, increasing its pressure and storing it in a pressurization tank to supply gas to the packaging machine. By setting up the pneumatic booster pump and the high-pressure main pipeline, on the one hand, the pneumatic booster pump requires no power supply, is driven by low-pressure gas, and can be installed anywhere, offering high flexibility and reliability; on the other hand, the gas is pressurized by the pneumatic booster pump and stored in the pressurization tank, eliminating the need to maintain high pressure on the main pipeline. Only local modifications are needed to the existing packaging production line, with the pneumatic booster pump added as needed, saving resources and effectively reducing the layout cost of the packaging production line. When adding or removing packaging machines later, only modifications to the high-pressure main pipeline are needed, adding or removing the corresponding number of branch pipes, reducing the later maintenance cost of the packaging production line. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the packaging production line according to an embodiment of this application.

[0015] In the diagram: 100, main pipeline; 200, pneumatic booster pump; 210, booster tank; 220, second regulating valve; 300, high-pressure main pipe; 310, branch pipe; 320, first regulating valve; 400, packaging machine. Specific Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0017] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0019] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0020] Reference Figure 1As shown, a packaging production line according to an embodiment of this application includes a main pipeline 100, a pneumatic booster pump 200, multiple packaging machines 400, and a control system. The main pipeline 100 can be newly installed or can utilize existing air inlets in the packaging workshop. The main pipeline 100 contains inert gas (such as nitrogen) or mixed gas (such as a combination of carbon dioxide, nitrogen, and oxygen) required by the air guns of the packaging machines 400, which will not be elaborated further here. The pneumatic booster pump 200 is equipped with a cylinder and a reversing valve. One end of the cylinder has a large piston, and the other end has a small piston. Low-pressure air pushes the large piston to drive the small piston, which performs work on the low-pressure gas. By switching the reversing valve, the action is repeated, thus obtaining a continuous output of high-pressure gas. A pneumatic booster pump 200 has its input end connected to the main pipeline 100 and its output end equipped with a booster tank 210. The booster tank 210 contains an air chamber and an air bladder. The air chamber is connected to the pneumatic booster pump 200. High-pressure gas output from the pneumatic booster pump 200 enters the air chamber, compressing the air bladder to maintain stable pressure and achieve high-pressure gas storage. The booster tank 210 is connected to a high-pressure main pipeline 300, which has multiple branch pipes 310. Multiple packaging machines 400 are arranged at intervals. The pneumatic booster pump 200 is located on one side of one of the packaging machines 400. Each packaging machine 400 corresponds to one branch pipe 310. Each packaging machine 400 has an air inlet, and the air inlets of the multiple packaging machines 400 are connected to their respective branch pipes 310. The control system is electrically connected to the multiple packaging machines 400 and the pneumatic booster pump 200. In this embodiment, the control system can be a centralized or distributed controller. For example, the controller can be a single microcontroller or a combination of multiple distributed microcontrollers. The microcontroller can run a control program to control the packaging machine 400 and the pneumatic booster pump 200 to achieve their functions.

[0021] Understandably, during the operation of the packaging production line, the pneumatic booster pump 200 draws medium- and low-pressure gas from the main pipeline 100, and then performs work on the gas under the reciprocating movement of the piston, increasing the gas pressure and storing the high-pressure gas in the booster tank 210 to supply air to the packaging machine 400. When the air gun of the packaging machine 400 is working, the booster tank 210 quickly opens to allow air to flow, causing the air gun to spray air.

[0022] By installing a pneumatic booster pump 200 and a high-pressure main pipe 300, the pneumatic booster pump 200 requires no power supply, is driven by low-pressure gas, and can be installed anywhere, offering high flexibility and reliability. Furthermore, the gas is pressurized by the pneumatic booster pump 200 and stored in the booster tank 210, eliminating the need to maintain high pressure on the main pipeline 100. Only minor modifications are required to the existing packaging production line, with the pneumatic booster pump 200 added as needed, saving resources and effectively reducing the layout cost of the packaging production line. When adding or removing packaging machines 400 later, only modifications to the high-pressure main pipe 300 are needed, adding or removing the corresponding number of branch pipes 310, further reducing the later maintenance costs of the packaging production line.

[0023] In particular, when the packaging machine 400 is large (with a single air consumption of more than 10L), or when there are many air guns on the packaging machine 400 (three or more), the pneumatic booster pump 200 and the packaging machine 400 can be set one-to-one to ensure stable air gun output. This is specifically mentioned here and will not be repeated hereafter.

[0024] Furthermore, two pneumatic booster pumps 200 are provided, connected in parallel and connected to the same high-pressure main pipe 300. Each pneumatic booster pump 200 has a booster tank 210 at its output end. The two booster tanks 210 are connected to multiple packaging machines 400 respectively through the same high-pressure main pipe 300. Optionally, the output end of the booster tank 210 is also equipped with a pressure regulating valve, which can be used to adjust and maintain the output pressure of the booster tank 210 to ensure stable operation and long-term lubrication of the system.

[0025] Under normal conditions, one pneumatic booster pump 200 is running while the other is shut down and on standby. If the running pump 200 fails, the standby pump can immediately start outputting high-pressure gas, preventing system shutdown. By setting up two pneumatic booster pumps 200 in parallel, the fault tolerance of the packaging production line can be improved, ensuring stable and continuous operation of the packaging equipment.

[0026] In some embodiments, the input end of the booster tank 210 is connected to a first filter, which is used to filter water and oil in the gas. Specifically, the first filter is equipped with a cyclone separator and a filter element. Compressed gas carrying oil, water and large particles enters the first filter tangentially and rotates under the guidance of the air guide structure and the cyclone separator. Centrifugal force is used to throw the denser liquid water droplets, oil droplets and solid particles toward the inner wall of the filter, while the smaller liquid water droplets, oil droplets and solid particles are filtered by the filter element.

[0027] By setting up a first filter, impurities such as oil and water in the gas can be filtered before the high-pressure gas enters the packaging machine 400, ensuring that the gas sprayed from the air gun has high purity and enhancing the vacuum packaging effect of the packaging machine 400.

[0028] Furthermore, a second filter is connected between the main pipeline 100 and the pneumatic booster pump 200. The structure of the second filter is the same as described above regarding the first filter, and will not be repeated here.

[0029] By setting a second filter, impurities in the medium and low pressure gas are filtered out, preventing impurity particles from contaminating, corroding or clogging the internal structure of the pneumatic booster pump 200, thus extending the service life of the pneumatic booster pump 200.

[0030] Preferably, the inlet of the second filter is provided with a check valve and a pressure reducing valve connected in series along the direction of media flow.

[0031] By setting up a check valve and a pressure reducing valve, the check valve can ensure unidirectional gas flow and prevent backflow when the pneumatic booster pump 200 stops, thus ensuring stable output of the pneumatic booster pump 200. The pressure reducing valve buffers the airflow through the cooperation of an internal spring and diaphragm, reducing the impact on the second filter and ensuring the stability and safety of the output gas.

[0032] Preferably, pressure gauges are provided at both the input end of the pneumatic booster pump 200 and the output end of the booster tank 210, and the pressure gauges are electrically connected to the control system.

[0033] By setting pressure gauges, the pressure gauge at the input end can monitor the inlet air pressure of the pneumatic booster pump 200 in real time, and the pressure gauge on the booster tank 210 can monitor the outlet air pressure of the pneumatic booster pump 200 in real time. The two pressure gauges and the control system work together to monitor and adjust the inlet and outlet air pressures of the pneumatic booster pump 200 in real time, further improving the stability and controllability of the pneumatic booster pump 200.

[0034] Reference Figure 1 As shown, it can be understood that a first regulating valve 320 is provided on the branch pipe 310. In this embodiment, the first regulating valve 320 is a manual shut-off valve.

[0035] By setting the first regulating valve 320, which is simultaneously closed in conjunction with the pressure reducing valve on the second filter of the booster tank 210, the pneumatic booster pump 200 can be isolated from the system, making it convenient for users to inspect, maintain, or replace the pneumatic booster pump 200, and further reducing the maintenance costs of the packaging production line in the later stages.

[0036] Furthermore, a second regulating valve 220 is provided on the pipeline between the pneumatic booster pump 200 and the main pipeline 100. In this embodiment, the first regulating valve 320 is also a manual shut-off valve.

[0037] By setting a second regulating valve 220, the user can close the second regulating valve 220 to isolate the corresponding packaging machine 400 from the system, making it convenient for the user to inspect and maintain the packaging machine 400, and further reducing the maintenance cost of the packaging production line in the later stage.

[0038] Preferably, the high-pressure main pipe 300 is a stainless steel pipe, and the branch pipe 310 is a stainless steel flexible hose that is sealed and connected to the high-pressure main pipe 300.

[0039] The high-pressure main pipe 300 and branch pipe 310 are made of stainless steel, which can accommodate the high pressure of the internal gas while limiting the layout cost of the high-pressure main pipe 300. The branch pipe 310 is made of stainless steel flexible hose, which allows users to easily adjust the position of the branch pipe 310, improves the layout flexibility of the branch pipe 310, and enhances the scalability of the packaging production line.

[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A packaging production line, characterized in that, include: Main line (100); A pneumatic booster pump (200) has its input end connected to the main pipeline (100) and its output end equipped with a booster tank (210). The booster tank (210) is connected to a high-pressure main pipe (300), and the high-pressure main pipe (300) is equipped with multiple branch pipes (310). Multiple packaging machines (400) are provided in a one-to-one correspondence with the branch pipe (310). Each packaging machine (400) is provided with an air inlet. The air inlets of the multiple packaging machines (400) are respectively connected to the corresponding branch pipe (310). The control system is electrically connected to the plurality of the packaging machines (400) and the pneumatic booster pump (200), respectively.

2. The packaging production line according to claim 1, characterized in that, The input end of the booster tank (210) is connected to a first filter, which is used to filter water and oil in the gas.

3. The packaging production line according to claim 2, characterized in that, A second filter is connected between the main pipeline (100) and the pneumatic booster pump (200).

4. The packaging production line according to claim 3, characterized in that, The input end of the second filter is equipped with a check valve and a pressure reducing valve connected in series along the direction of media flow.

5. The packaging production line according to claim 1, characterized in that, Pressure gauges are provided at the input end of the pneumatic booster pump (200) and the output end of the booster tank (210), and the pressure gauges are electrically connected to the control system.

6. The packaging production line according to claim 1, characterized in that, The branch pipe (310) is equipped with a first regulating valve (320).

7. The packaging production line according to claim 1, characterized in that, A second regulating valve (220) is provided on the pipeline between the pneumatic booster pump (200) and the main pipeline (100).

8. The packaging production line according to any one of claims 1-7, characterized in that, Two pneumatic booster pumps (200) are provided, and the two pneumatic booster pumps (200) are connected in parallel and connected to the same high-pressure main pipe (300).

9. The packaging production line according to claim 1, characterized in that, The high-pressure main pipe (300) is a stainless steel pipe, and the branch pipe (310) is a stainless steel flexible hose that is sealed and connected to the high-pressure main pipe (300).

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