A contact and non-contact aseptic filling valve for gas-containing non-gas-containing filling

Abstract

The utility model provides a contact and non - contact is used for containing gas non - containing gas filling's aseptic filling valve relates to liquid filling equipment technical field, including drive assembly, transmission assembly, valve body subassembly, sealed aseptic subassembly, filling mode switching subassembly and CIP cleaning component, the utility model has the advantages of: this filling valve can switch contact or non - contact filling mode, adapts containing gas or non - containing gas material, adopts composite seal to guarantee asepsis, transmission is stable and long -lived, through integrated CIP cleaning convenient no residue, compact structure adapts to the existing production line, realize filling precision is high, material loss is little, greatly reduce equipment and the cost of reformation.

Description

Technical Field

[0001] This utility model mainly relates to the field of liquid filling equipment technology, specifically to a contact and non-contact aseptic filling valve for filling gaseous and non-gas-containing products. Background Technology

[0002] As a core piece of equipment in liquid filling production lines for industries such as food, beverage, and pharmaceuticals, the performance of aseptic filling valves directly affects filling efficiency, material hygiene and safety, and product quality. Existing aseptic filling valves have limitations in functional adaptability and aseptic sealing performance. Most products adopt a single filling mode design, which can only achieve one of contact or non-contact filling. Among them, valves for contact filling are at risk of cross-contamination at the bottle mouth, while valves for non-contact filling are prone to foam overflow when handling gaseous materials because the gas in the bottle cannot be discharged in time. Moreover, these valves usually cannot simultaneously adapt to the filling needs of gaseous and non-gase materials. Enterprises need to configure multiple sets of equipment to meet different production conditions, which increases equipment investment costs and space occupation. The sealing structure of existing products mostly relies on a single type of O-ring, without differentiated design for dynamic sealing scenarios of valve core lifting and lowering and static sealing scenarios of flange connection. Dynamic sealing parts are prone to sealing failure due to long-term friction wear, resulting in oil, dust and other contaminants from the transmission area seeping into the material chamber. Static sealing parts are prone to leakage due to insufficient fitting precision, which makes it difficult to meet the aseptic production standards of the food and pharmaceutical industries. Utility Model Content

[0003] 1. The technical problem to be solved by the utility model: This invention provides a contact and non-contact aseptic filling valve for gas-containing and non-gas-containing filling, in order to solve the technical problems existing in the background art.

[0004] 2. Technical Solution: To achieve the above objectives, the technical solution provided by this utility model is as follows: a contact and non-contact aseptic filling valve for gas-containing and non-gas-containing filling, characterized in that it includes a drive assembly, a transmission assembly, a valve body assembly, a sealing aseptic assembly, a filling mode switching assembly, and a CIP cleaning assembly. The drive assembly includes a cylinder and a support, with the cylinder mounted on the top of the support; The transmission assembly includes a connecting rod, a sliding sleeve, a spring, and a valve core rod. The connecting rod is connected to the output end of the cylinder. The sliding sleeve is sleeved on the outside of the connecting rod. The spring abuts against the sliding sleeve and the subsequent component. The valve core rod is connected to the lower end of the connecting rod and extends into the valve body assembly. The valve body assembly includes a valve body, a lower valve seat, and a valve port sealing cone. The valve body is connected to the support, the lower valve seat is located at the bottom of the valve body, and the valve port sealing cone is connected to the lower end of the valve core rod. The opening and closing of the valve port sealing cone and the lower valve seat are achieved by raising and lowering the valve core rod. The sealing aseptic assembly includes a sterile valve diaphragm and multiple O-rings. The sterile valve diaphragm is disposed between the valve body and the transmission assembly, and the O-rings are disposed at the connection points of each component. The filling mode switching component includes a bottle mouth gasket, which is disposed at the bottom of the lower valve seat, and the valve body side is provided with a venting connector and a pipe. The CIP cleaning assembly includes a CIP dummy cup, which can mate with the bottom of the lower valve seat.

[0005] Furthermore, the transmission assembly also includes a guide sleeve, bearing A, and bearing B. The guide sleeve is sleeved on the outside of the valve core rod, and bearing A and bearing B are both located at the mating part between the sliding sleeve and the guide sleeve.

[0006] Furthermore, the O-rings are made of fluororubber and silicone rubber, and are respectively embedded in the connection gaps between the support and the valve body, the valve core rod and the guide sleeve, and the lower valve seat and the valve body.

[0007] Furthermore, the filling mode switching component also includes an opening and closing mold rod and a balance cap. The opening and closing mold rod is threadedly connected to the lower valve seat, and the gap between the bottle mouth pad and the bottle mouth to be filled is adjusted by rotation.

[0008] Furthermore, the CIP cleaning assembly also includes a cylinder connecting plate and a cylinder support. The cylinder support is fixed to the side wall of the valve body, and the CIP dummy cup is connected to the drive end of the cylinder support through the cylinder connecting plate.

[0009] Furthermore, the exhaust connector on the side of the valve body includes a first exhaust connector, a second exhaust connector, and a connecting pipe. The two ends of the connecting pipe are respectively connected to the first exhaust connector and the centralized exhaust pipeline of the filling system. One end of the second exhaust connector is connected to the side wall of the valve body, forming a through exhaust channel. The exhaust channel is connected to the material chamber of the valve body.

[0010] 3. Beneficial effects: Compared with the prior art, the technical solution provided by this utility model has the following advantages: The bottle neck pad and opening / closing mold rod allow for flexible switching between contact and non-contact filling modes. Combined with a through-type exhaust channel, it can prevent splashing during non-gas-containing material contact filling and quickly expel gas from the bottle during gas-containing material filling, eliminating foam overflow. There is no need to equip multiple sets of equipment for different materials, which greatly reduces the company's equipment investment and improves equipment utilization. The system employs a sterile valve diaphragm to flexibly isolate the material chamber from the transmission area, preventing contamination at the source. The dynamic sealing parts use wear-resistant and corrosion-resistant fluororubber O-rings, while the static sealing parts use silicone rubber O-rings with good fit, providing double protection to meet the sterility requirements of the food and pharmaceutical industries. The transmission assembly is equipped with a guide sleeve and a deep groove ball bearing. The guide sleeve limits the radial displacement of the valve core rod and ensures coaxiality. The bearing converts sliding friction into rolling friction, reduces resistance and avoids jamming, making the valve opening and closing smooth and reliable, significantly extending the life of the components and reducing the frequency of maintenance. The CIP cleaning assembly adopts an integrated design with a built-in micro cylinder supported by a cylinder. The structure is compact, and the micro cylinder drives the CIP dummy cup to fit tightly with the lower valve seat, forming a closed cleaning chamber. The cleaning fluid can cover all material channels without disassembling the valve components, which avoids the risk of contamination, improves cleaning efficiency, and ensures that the channels are sterile before filling.

[0011] It should be noted that the structures not described in this utility model are the same as or can be implemented using existing technology, and will not be elaborated here, as they do not involve the design points and improvement directions of this utility model. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model from another angle.

[0013] Figure label: 1. Support; 2. Connecting rod; 3. Cylinder; 4. Sliding sleeve; 5. Spring; 6. Guide sleeve; 7. Aseptic valve diaphragm; 8. Valve body; 9. Valve core rod; 10. Bearing A; 11. Bottle mouth gasket; 12. Valve port sealing cone; 13. Lower valve seat; 14. Bearing B; 15. First exhaust connector; 16. Connecting pipe; 17. Second exhaust connector; 18. CIP dummy cup; 19. Cylinder connecting plate; 20. Opening and closing mold rod; 21. Balance cap; 22. Cylinder support. Detailed Implementation

[0014] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0015] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0016] 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.

[0017] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0018] See attached document Figure 1-2 A contact and non-contact aseptic filling valve for gas-containing and non-gas-containing filling, characterized in that it includes a drive assembly, a transmission assembly, a valve body assembly, a sealing aseptic assembly, a filling mode switching assembly, and a CIP cleaning assembly. The drive assembly includes a cylinder 3 and a support 1. The support 1 has a cylindrical mounting cavity on its top. The cylinder body of the cylinder 3 is axially limited by a cap nut and fastened to the mounting flange surface on the top of the support 1 by multiple sets of circumferentially evenly distributed hexagonal head screws, ensuring the coaxiality and stability of the cylinder 3 after installation. The cylinder 3 is a double-acting pneumatic cylinder with a keyway at the end of its output shaft. It is connected to the inner hole at the upper end of the connecting rod 2 by a flat key, which can drive the connecting rod 2 to perform reciprocating lifting and lowering motion, providing power support for the opening and closing of the valve port and the switching of the filling mode.

[0019] The transmission assembly includes connecting rod 2, sliding sleeve 4, spring 5, guide sleeve 6, valve core rod 9, bearing A10, and bearing B14. The linear motion of cylinder 3 is transmitted to valve core rod 9 through the transmission assembly, enabling smooth lifting and lowering of valve core rod 9 and ensuring reliable opening and closing of the valve port. The specific connection relationship is as follows: The connecting rod 2 has a stepped shaft structure. Its upper end is connected to the output shaft of the cylinder 3, and its lower end is threaded to the internal thread hole at the upper end of the valve core rod 9 through an external thread. It is locked by a lock nut to prevent loosening during transmission. The sliding sleeve 4 is fitted on the outside of the middle stepped shaft of the connecting rod 2, with its upper end face fitting against the shoulder of the connecting rod 2 and its lower end face abutting against the upper end of the spring 5. Spring 5 is a cylindrical helical compression spring, sleeved on the outside of connecting rod 2, with its lower end abutting against the upper end face of guide sleeve 6. Its pre-compression amount can be adjusted by adjusting the installation height of connecting rod 2, which is used to buffer the impact force when valve core rod 9 rises and falls, and ensure the smooth opening and closing of valve port. The guide sleeve 6 is fitted into the guide hole at the bottom of the support 1 by interference fit. Its inner wall is provided with a lubrication groove. It is sleeved on the outside of the valve core rod 9 to limit the radial displacement of the valve core rod 9, ensure the coaxiality of the valve core rod 9's lifting and lowering movement, and avoid the valve core rod 9 from shifting and causing the valve port sealing cone 12 and the lower valve seat 13 to fail to seal. Bearings A10 and B14 are both deep groove ball bearings, respectively fitted into the inner hole at the lower end of the sliding sleeve 4 and the outer circle at the upper end of the guide sleeve 6. The inner ring of the bearing is interference-fitted with the sliding sleeve 4, and the outer ring is clearance-fitted with the guide sleeve 6. This converts the sliding friction between the sliding sleeve 4 and the guide sleeve 6 into rolling friction, significantly reducing transmission resistance and improving the smoothness of movement and service life of the transmission components. The valve body assembly includes a valve body 8, a lower valve seat 13, and a valve port sealing cone 12. The valve body 8 is forged from stainless steel and has a funnel-shaped material chamber inside. Its top is fitted with the bottom flange of the support 1 via a flange face, and is fastened by multiple sets of circumferentially evenly distributed bolts. O-rings are provided between the flange mating surfaces to ensure sealing performance. The lower valve seat 13 has an annular structure and is positioned and embedded in the mounting hole at the bottom of the valve body 8 via a stepped design. Its lower end face is fitted with the bottle neck gasket 11, and its inner ring has a conical sealing surface, which cooperates with the valve port sealing cone 12 to realize the opening and closing of the valve port. The valve port sealing cone 12 is vulcanized. The process is fixed at the lower end of the valve core rod 9, whose conical surface complements the conical sealing surface of the lower valve seat 13. When the valve core rod 9 rises, the valve port sealing cone 12 and the conical surface of the lower valve seat 13 fit tightly together, thus closing the valve port. When the valve core rod 9 falls, the two separate, and the material flows into the bottle to be filled through the material chamber of the valve body 8 and the inner hole of the lower valve seat 13, completing the filling. The side wall of the valve body 8 is also provided with a material inlet pipe, which is connected to the external material conveying pipeline through a compression fitting. The position of the material inlet corresponds to the middle of the material chamber inside the valve body 8, ensuring that the material flows in smoothly and avoiding turbulence.

[0020] The aseptic sealing assembly is used to isolate the material channel from the non-aseptic areas of the transmission and drive components, ensuring the aseptic nature of the material filling process. This assembly includes an aseptic valve diaphragm 7 and multiple O-rings. The aseptic valve diaphragm 7 is made of food-grade sealing material and has a ring structure. Its outer ring is pressed and fixed by the flange connection between the valve body 8 and the support 1, while the inner ring is tightly fitted onto the stepped shaft in the middle of the valve core rod 9, forming a flexible sealing structure. This structure can deform synchronously with the rise and fall of the valve core rod 9, without affecting the transmission, and completely isolates the material chamber inside the valve body 8 from the transmission area inside the support 1, preventing oil, dust, and other contaminants from the transmission area from entering the material chamber and ensuring material hygiene. The O-rings are made of different materials depending on the operating conditions of the installation location: fluororubber O-rings are embedded in the valve... The mating gap between the core rod 9 and the guide sleeve 6 is wear-resistant and corrosion-resistant, ensuring a dynamic sealing effect. O-rings made of silicone rubber are respectively set on the flange connection surface between the support 1 and the valve body 8, the mounting groove between the lower valve seat 13 and the valve body 8, the contact area between the valve core rod 9 and the aseptic valve diaphragm 7, and the groove of the flange connection surface between the support 1 and the valve body 8, etc., to strengthen the static sealing of the flange connection. O-rings are also set in the outer ring mounting groove of the lower valve seat 13 to prevent material leakage from the gap between the lower valve seat 13 and the valve body 8. The O-rings fitted on the contact area between the valve core rod 9 and the aseptic valve diaphragm 7 are used to improve the sealing fit between the two. Through the double sealing structure, the material channel is completely isolated from the external environment, meeting the aseptic filling requirements of the food, pharmaceutical and other industries.

[0021] The filling mode switching assembly is used to switch between contact and non-contact filling and to vent gas-containing materials. It includes a bottle neck pad 11, an opening and closing mold rod 20, a balance cap 21, and a venting connector. The bottle neck gasket 11 is made of food-grade silicone and has a ring structure. It is embedded in the groove on the lower end face of the lower valve seat 13. Its lower end face is an arc-shaped sealing surface, which is used to fit with the bottle neck of the bottle to be filled or to form a gap. The opening and closing mold rod 20 has a stepped shaft structure. The upper end is provided with a fine external thread, which is threaded to the internal thread hole at the bottom of the lower valve seat 13. The lower end is fixedly connected to the balance cover 21 by a lock nut. When the opening and closing mold rod 20 is rotated, the bottle mouth pad 11 can be driven to rise and fall axially, thereby adjusting the gap between the bottle mouth pad 11 and the bottle mouth to be filled: when the gap is zero, the bottle mouth pad 11 fits tightly with the bottle mouth, realizing contact filling, which is suitable for non-aerobic materials and can prevent material splashing; when a set gap is formed, the two form a non-contact channel, realizing non-contact filling of non-aerobic materials or filling of aerobic materials. The venting connector includes a first venting connector 15, a second venting connector 17, and a connecting pipe 16. The first venting connector 15 is integrally welded to the side wall of the valve body 8. Its inner port is directly connected to the material chamber inside the valve body 8, and its outer port is sealed to one end of the connecting pipe 16 through a sealing cap. The other end of the connecting pipe 16 is directly connected to the centralized venting pipeline of the filling system, forming the main venting channel. The second venting connector 17 is an auxiliary venting interface independently set on the side wall of the valve body 8. Its inner side is also connected to the material chamber. It can be connected to a separate venting branch according to the venting volume requirement of the gas-containing material. It works in conjunction with the main venting channel of the first venting connector 15 to achieve rapid venting of gas in the bottle, avoid foam overflow caused by gas volume pressure, ensure the accuracy of filling volume, and reduce material loss.

[0022] The CIP cleaning assembly is used to achieve online aseptic cleaning of the filling valve, avoiding the risk of contamination caused by disassembly and cleaning. It includes the CIP dummy cup 18, cylinder connecting plate 19, and cylinder support 22. The cylinder support 22 is fixed to the reinforcing rib plate on the side wall of the valve body 8 by internal hex bolts. It integrates a miniature double-acting cylinder, which is the lifting drive component of the CIP dummy cup. The output end is set in the vertical direction. One end of the cylinder connecting plate 19 is fixedly connected to the output end of the miniature cylinder by bolts, and the other end is fixedly connected to the top of the CIP dummy cup 18 by flange face. The CIP dummy cup 18 has a cup-shaped structure with a sealing gasket at the top and a cleaning fluid outlet at the bottom. When cleaning is required, a micro cylinder drives the CIP dummy cup 18 to rise vertically, so that the sealing gasket at the top of the CIP dummy cup 18 fits tightly against the bottle mouth gasket 11 at the bottom of the lower valve seat 13, forming a closed cleaning chamber. Subsequently, the cleaning fluid enters the cleaning chamber through the material inlet of the valve body 8, flows through the internal channel of the valve body 8 and the inner hole of the lower valve seat 13, and is discharged from the cleaning fluid outlet of the CIP dummy cup 18, realizing all-round cleaning of the material channel inside the filling valve. After cleaning, the micro cylinder drives the CIP dummy cup 18 to descend and reset, without affecting normal filling operations.

[0023] The specific workflow is as follows: Contact filling (non-aerated materials): Rotate the opening and closing mold rod 20 to make the gap between the bottle mouth gasket 11 and the bottle mouth to be filled zero. The cylinder 3 drives the connecting rod 2 to lower the valve core rod 9, and the bottle mouth gasket 11 fits tightly with the bottle mouth. The valve core rod 9 continues to descend, and the valve mouth sealing cone 12 separates from the lower valve seat 13. The non-aerated material flows into the bottle through the material chamber of the valve body 8. After filling is completed, the cylinder 3 resets, the valve core rod 9 rises, the valve mouth sealing cone 12 fits with the lower valve seat 13 to close the valve mouth, and the bottle mouth gasket 11 separates from the bottle mouth, completing the filling.

[0024] Non-contact filling (for gaseous materials): Rotate the opening and closing mold rod 20 to adjust the bottle mouth pad 11 to form a set gap with the bottle mouth, and open the vacuum device of the exhaust channel; the cylinder 3 drives the valve core rod 9 to descend and open the valve port, allowing the gaseous material to flow into the bottle, and the gas in the bottle to be discharged through the exhaust channel; after filling is completed, close the vacuum device, and the valve core rod 9 rises to close the valve port, completing the filling.

[0025] CIP cleaning: The cylinder support 22 drives the CIP dummy cup 18 to rise and fit against the lower valve seat 13, and the cleaning fluid is introduced. The cleaning fluid flows through the material channel and is discharged, achieving sterile cleaning. After cleaning, the CIP dummy cup 18 is reset.

[0026] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A contact and non-contact aseptic filling valve for gas-containing and non-gas-containing filling, characterized in that, This includes drive components, transmission components, valve body components, aseptic sealing components, filling mode switching components, and CIP cleaning components; The drive assembly includes a cylinder (3) and a support (1), with the cylinder (3) mounted on the top of the support (1); The transmission assembly includes a connecting rod (2), a sliding sleeve (4), a spring (5), and a valve core rod (9). The connecting rod (2) is connected to the output end of the cylinder (3). The sliding sleeve (4) is sleeved on the outside of the connecting rod (2). The spring (5) abuts against the sliding sleeve (4) and the subsequent components. The valve core rod (9) is connected to the lower end of the connecting rod (2) and extends into the valve body assembly. The valve body assembly includes a valve body (8), a lower valve seat (13), and a valve port sealing cone (12). The valve body (8) is connected to the support (1). The lower valve seat (13) is located at the bottom of the valve body (8). The valve port sealing cone (12) is connected to the lower end of the valve core rod (9). The valve port sealing cone (12) and the lower valve seat (13) are opened and closed by the valve core rod (9) rising and falling. The sealing sterile assembly includes a sterile valve diaphragm (7) and a plurality of O-rings. The sterile valve diaphragm (7) is disposed between the valve body (8) and the transmission assembly, and the O-rings are disposed at the connection points of each component. The filling mode switching component includes a bottle mouth pad (11), which is located at the bottom of the lower valve seat (13). The valve body (8) has a venting connector and a pipe on its side. The CIP cleaning assembly includes a CIP dummy cup (18) which can engage with the bottom of the lower valve seat (13).

2. The aseptic filling valve for contact and non-contact filling of gas-containing and non-gas-containing materials according to claim 1, characterized in that: The transmission assembly also includes a guide sleeve (6), a bearing A (10) and a bearing B (14). The guide sleeve (6) is sleeved on the outside of the valve core rod (9). The bearing A (10) and the bearing B (14) are both located at the mating part of the sliding sleeve (4) and the guide sleeve (6).

3. The aseptic filling valve for contact and non-contact filling of gas-containing and non-gas-containing materials according to claim 2, characterized in that: The O-rings are made of fluororubber and silicone rubber. The O-rings are respectively embedded in the connection gaps between the support (1) and the valve body (8), the valve core rod (9) and the guide sleeve (6), and the lower valve seat (13) and the valve body (8).

4. The aseptic filling valve for contact and non-contact filling of gas-containing and non-gas-containing materials according to claim 1, characterized in that: The filling mode switching component also includes an opening and closing mold rod (20) and a balance cap (21). The opening and closing mold rod (20) is threadedly connected to the lower valve seat (13), and the gap between the bottle mouth pad (11) and the bottle mouth to be filled is adjusted by rotation.

5. The aseptic filling valve for contact and non-contact filling of gas-containing and non-gas-containing materials according to claim 1, characterized in that: The CIP cleaning assembly also includes a cylinder connecting plate (19) and a cylinder support (22). The cylinder support (22) is fixed to the side wall of the valve body (8). The CIP dummy cup (18) is connected to the drive end of the cylinder support (22) through the cylinder connecting plate (19).

6. The aseptic filling valve for contact and non-contact filling of gas-containing and non-gas-containing materials according to claim 1, characterized in that: The exhaust connector on the side of the valve body (8) includes a first exhaust connector (15), a second exhaust connector (17) and a connecting pipe (16). The two ends of the connecting pipe (16) are respectively connected to the first exhaust connector (15) and the centralized exhaust pipeline of the filling system. One end of the second exhaust connector (17) is connected to the side wall of the valve body (8) to form a through exhaust channel. The exhaust channel is connected to the material chamber of the valve body (8).

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