Sterilized cup of a blow-fill-seal integrated machine

Abstract

The utility model discloses a sterilization cup of blow -fill -seal integrated machine, including cup body and the cooling assembly of being located on cup body, be equipped with the sampling channel of being able to with the inner chamber of cup body intercommunication, the valve body for controlling sampling channel opening and closing and be used to with the sealing piece sealed butt joint of blow -fill -seal integrated machine's extrusion die head. Sampling detects, and the support gas flows down into the cup body from the gap between the needle outer wall and extrusion die head, and the sealing piece seals the gap between cup body and extrusion die head, and the valve body opens, so that sampling channel communicates with the inner chamber of cup body, at this moment can sample detection to support gas through sampling channel. Since sampling detection point is located on cup body, is closer to the position of actual filling production, and the length of sampling pipeline is shortened, and particle deposition is reduced, thereby improve the accuracy of sampling result. And cooling assembly is used for cooling cup body, support gas, reduces the support gas temperature in cup body, prevents temperature excessively high damage particle counter.

Description

Technical Field

[0001] This utility model relates to the field of food and pharmaceutical packaging equipment technology, and in particular to a sterilization cup for a blow-fill-seal integrated machine. Background Technology

[0002] Continuous BFS (Blow-Fill-Seal) equipment performs filling inside a closed preform, with the filling area surrounded by support gas (e.g., sterilized and filtered compressed air) supplied through a support gas pipeline. To verify that the support gas meets Class A cleanliness requirements, the traditional method involves adding a sampling port to the support gas pipeline and vacuum-extracting air from the pipeline to test its particle content. To ensure the sampling results closely approximate the actual production process, the sampling port should be located close to the actual preform forming location.

[0003] like Figure 1 As shown, prior application CN118405331A discloses a sterilization detection system for a BFS aseptic filling equipment. A sterilization cup a is installed below the extrusion die, and sterilization cup a is connected to a particle detection mechanism d via a sampling pipe for sampling and detection. Since the temperature of the extrusion die can reach over 100℃ (the extrusion die needs to be preheated before operation; after reaching the preheated temperature, it continuously extrudes a high-temperature molten tube preform, thus absorbing heat from the preform and further increasing the temperature), the supporting gas is heated after passing through the extrusion die. Excessive temperature can damage the particle detection mechanism d. To address this, existing technology adds a heat exchanger b to the sampling pipe after sterilization to cool it down. However, the added cooling section may cause particle sedimentation, affecting the accuracy of the sampling results. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a sterilization cup for a blow-fill-seal integrated machine that can simplify the structure, shorten the flow path of the supporting gas, prevent damage to the detection instrument, and improve the accuracy of sampling results.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A sterilization cup for a blow-fill-seal machine includes a cup body and a cooling assembly disposed on the cup body. The cup body is provided with a sampling channel that can communicate with the inner cavity of the cup body, a valve body for controlling the opening and closing of the sampling channel, and a sealing element for sealingly engaging with the extrusion die of the blow-fill-seal machine.

[0006] As a further improvement to the above technical solution: the cup body is provided with a valve body channel communicating with the inner cavity of the cup body, and the valve body is used to control the connection or disconnection of the valve body channel with the sampling channel.

[0007] As a further improvement to the above technical solution: the valve body is a pneumatic diaphragm valve.

[0008] As a further improvement to the above technical solution: the cooling assembly includes a cooling channel disposed on the cup body, and the cooling channel is connected to an inlet connector and an outlet connector.

[0009] As a further improvement to the above technical solution: the cooling channels are located in the upper and lower parts of the cup walls on both sides of the cup body.

[0010] As a further improvement to the above technical solution: the bottom of the cup body is also provided with a drainage channel that communicates with the inner cavity of the cup body.

[0011] As a further improvement to the above technical solution: the inlet connector, the outlet connector, the sampling channel, the valve body, and the drainage channel are located at the same end of the cup body.

[0012] As a further improvement to the above technical solution: the cup body is provided with lugs on both sides.

[0013] Compared with the prior art, the advantages of this utility model are: The sterilization cup of the blow-fill-seal integrated machine disclosed in this utility model allows for sampling and testing. During sampling, the supporting gas flows downwards into the cup body through the gap between the outer wall of the filling needle and the extrusion die. The sealing element seals the gap between the cup body and the extrusion die, and the valve body opens, connecting the sampling channel with the inner cavity of the cup body. At this point, the supporting gas can be sampled and tested through the sampling channel. Because the sampling and testing point is located on the cup body, closer to the actual filling production location, and the length of the sampling pipeline is shortened, particle sedimentation is reduced, thereby improving the accuracy of the sampling results. The cooling component is used to cool the cup body and the supporting gas, reducing the temperature of the supporting gas inside the cup and preventing damage to the particle counter due to excessive temperature. The structure is reasonable and effective.

[0014] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the sterilization detection system of the existing BFS aseptic filling equipment.

[0016] Figure 2 This is a three-dimensional structural diagram of the sterilization cup of the blow-fill-seal integrated machine of this utility model. Figure 3 This is a schematic cross-sectional view of the sterilization cup of the blow-fill-seal integrated machine of this utility model.

[0017] Figure 4 This is a side sectional view of the sterilization cup of the blow-fill-seal integrated machine of this utility model. Figure 1 .

[0018] Figure 5 This is a side sectional view of the sterilization cup of the blow-fill-seal integrated machine of this utility model. Figure 2 .

[0019] Figure 6 This is a top view of the sterilization cup of the blow-fill-seal integrated machine of this utility model.

[0020] The labels in the diagram represent: a. Sterilization cup; b. Heat exchanger; c. Temperature sensing element; d. Particle detection mechanism; 1. Cup body; 11. Cooling channel; 12. Valve body channel; 13. Sampling channel; 14. Drainage channel; 21. Inlet connector; 22. Outlet connector; 3. Sampling connector; 4. Valve body; 5. Drainage connector; 6. Seal; 7. Support lug; 8. Extrusion die; 9. Filling needle. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" 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 according to the specific circumstances.

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Figures 2 to 6 This illustration shows an embodiment of the sterilization cup of the blow-fill-seal integrated machine of this invention. The sterilization cup of this embodiment includes a cup body 1 and a cooling assembly disposed on the cup body 1. The cup body 1 is provided with a sampling channel 13 that communicates with the inner cavity of the cup body 1, a valve body 4 for controlling the opening and closing of the sampling channel 13, and a sealing element 6 for sealingly engaging with the extrusion die head 8 of the blow-fill-seal integrated machine. The sealing element 6 can be, for example, a sealing ring, a sealing strip, etc.

[0026] See details Figures 3 to 5 In this embodiment, during sampling and testing, the supporting gas (such as clean air, nitrogen, etc.) flows downwards into the cup body 1 through the gap between the outer wall of the filling needle 9 and the extrusion die 8. The sealing member 6 seals the gap between the cup body 1 and the extrusion die 8, and the valve body 4 opens, allowing the sampling channel 13 to communicate with the inner cavity of the cup body 1. At this time, the supporting gas can be sampled and tested through the sampling channel 13. Since the sampling and testing point is located on the cup body 1, closer to the actual filling production location, and the length of the sampling pipeline is shortened, particle sedimentation is reduced, thereby improving the accuracy of the sampling results. The cooling component is used to cool the cup body 1 and the supporting gas, reducing the temperature of the supporting gas inside the cup body 1 and preventing damage to the particle counter due to excessive temperature. The structure is reasonable and effective.

[0027] See details Figure 3 In this embodiment, the cup body 1 is provided with a valve body channel 12 communicating with the inner cavity of the cup body 1. The valve body 4 is used to control the connection or disconnection between the valve body channel 12 and the sampling channel 13. When the sterilization cup is first cleaned and then sterilized online, the valve body 4 seals the valve body channel 12, disconnecting the sampling channel 13 from the valve body channel 12. Consequently, the sampling channel 13 cannot communicate with the inner cavity of the cup body 1. When sampling and testing are required, the valve body 4 opens, connecting the sampling channel 13 with the valve body channel 12. The supporting gas inside the cup body 1 can enter the sampling channel 13 through the valve body channel 12. The structure is simple and has good reliability.

[0028] In a preferred embodiment, the valve body 4 is a pneumatic diaphragm valve. When the diaphragm of the pneumatic diaphragm valve is in close contact with the cup body 1, it provides a good seal, blocking the valve body channel 12 and disconnecting the sampling channel 13 from the valve body channel 12. When the diaphragm of the pneumatic diaphragm valve separates from the cup body 1, the sampling channel 13 connects with the valve body channel 12. Of course, in other embodiments, the valve body 4 can also be of other types.

[0029] Furthermore, in this embodiment, the cooling assembly includes a cooling channel 11 disposed on the cup body 1, and the cooling channel 11 is connected to an inlet connector 21 and an outlet connector 22. During sampling and testing, coolant (such as cooling water) can be introduced through the inlet connector 21. The coolant enters the cooling channel 11 and absorbs the heat from the cup body 1 and the supporting gas inside the cup body 1, thereby cooling the cup body 1 and the supporting gas. The coolant, after absorbing heat and heating up, is discharged from the outlet connector 22, cooled down, and then re-enters the cooling channel 11. This cycle continues, resulting in a good cooling effect.

[0030] In a preferred embodiment, the cooling channels 11 are located in the upper and lower parts of the cup walls on both sides of the cup body 1, increasing the area covered by the cooling channels 11, which is beneficial to further improve the cooling effect of the cup body 1. Furthermore, the structure is compact, does not occupy the space inside the cup body 1, and does not increase the volume of the cup body 1. Of course, in other embodiments, cooling water pipes and / or air cooling can also be used to cool the cup body 1 and the supporting gas inside its cavity.

[0031] In a preferred embodiment, the bottom of the cup body 1 is also provided with a drainage channel 14 that communicates with the inner cavity of the cup body 1. During online cleaning and online sterilization, the water in the cup body 1 can be completely drained through the drainage channel 14, which is simple and effective.

[0032] In a preferred embodiment, the inlet connector 21, outlet connector 22, sampling channel 13, valve body 4, and drainage channel 14 are located at the same end of the cup body 1. The concentration of these components at the same end of the cup body 1 facilitates disassembly and maintenance.

[0033] It is known that the sampling channel 13 and the drainage channel 14 can be connected to other devices through the sampling connector 3 and the drainage connector 5.

[0034] See details Figure 4 and Figure 5 In this embodiment, the cup body 1 is provided with lugs 7 on both sides. The cup body 1 can be reliably suspended on the bottom of the extrusion die 8 with the help of the lugs 7, and can be disassembled and assembled by pushing and pulling. The structure is simple and easy to use.

[0035] The method of using the sterilization cup of this blow-fill-seal integrated machine is as follows: The cup body 1 is mounted on the lower surface of the extrusion die 8 via the lug 7, and forms a seal with the extrusion die 8 via the sealing member 6.

[0036] During online cleaning (CIP), coolant is not required to flow into the cooling channel 11 or the coolant does not circulate. The cleaning water flows down from the filling needle 9, passes through the inner cavity of the cup body 1, and flows out from the drain connector 5.

[0037] During online sterilization (SIP), no coolant is required in the cooling channel 11 or the coolant does not circulate. Pure steam flows down from the filling needle 9 and then flows from the gap between the outer wall of the filling needle 9 and the extrusion die 8 to the supporting gas pipeline. The steam condensate is collected through the cup body 1 and flows out from the drain connector 5.

[0038] During the sampling of the supporting gas, the coolant in the cooling channel 11 circulates to cool the cup body 1 and the supporting gas inside it (the extrusion die 8 needs to be preheated before it starts working. After reaching the preheating temperature, it starts to continuously extrude the tube blank in a high-temperature molten state, so it will absorb the heat of the tube blank and the temperature will rise further. The supporting gas will be heated after passing through the extrusion die 8). The supporting gas is blown down from the gap between the outer wall of the filling needle 9 and the extrusion die 8. After opening the valve body 4, the supporting gas can be sampled and tested through the sampling connector 3.

[0039] After the sample passes the test, the cup body 1 is pulled out from the extrusion die 8, and the blow-fill-seal machine begins normal production.

[0040] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A sterilization cup for a blow-fill-seal integrated machine, characterized in that: It includes a cup body (1) and a cooling assembly disposed on the cup body (1). The cup body (1) is provided with a sampling channel (13) that can communicate with the inner cavity of the cup body (1), a valve body (4) for controlling the opening and closing of the sampling channel (13), and a sealing element (6) for sealing and docking with the extrusion die (8) of the blow-fill-seal machine.

2. The sterilization cup of the blow-fill-seal integrated machine according to claim 1, characterized in that: The cup body (1) is provided with a valve body channel (12) that communicates with the inner cavity of the cup body (1). The valve body (4) is used to control the connection or disconnection between the valve body channel (12) and the sampling channel (13).

3. The sterilization cup of the blow-fill-seal integrated machine according to claim 2, characterized in that: The valve body (4) is a pneumatic diaphragm valve.

4. The sterilization cup of the blow-fill-seal integrated machine according to any one of claims 1 to 3, characterized in that: The cooling assembly includes a cooling channel (11) disposed on the cup body (1), the cooling channel (11) being connected to an inlet connector (21) and an outlet connector (22).

5. The sterilization cup of the blow-fill-seal integrated machine according to claim 4, characterized in that: The cooling channels (11) are located in the upper and lower parts of the cup walls on both sides of the cup body (1).

6. The sterilization cup of the blow-fill-seal integrated machine according to claim 4, characterized in that: The bottom of the cup body (1) is also provided with a drainage channel (14) that communicates with the inner cavity of the cup body (1).

7. The sterilization cup of the blow-fill-seal integrated machine according to claim 6, characterized in that: The inlet connector (21), the outlet connector (22), the sampling channel (13), the valve body (4), and the drainage channel (14) are located at the same end of the cup body (1).

8. The sterilization cup of the blow-fill-seal integrated machine according to any one of claims 1 to 3, characterized in that: The cup body (1) has lugs (7) on both sides.

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