Sterile filling line servo capping apparatus

Abstract

The application relates to the technical field of food and beverage filling, and discloses a sterile filling line servo cap rotating equipment, which comprises an integrated frame outer sealing assembly, a negative pressure cavity sterile sealing assembly, a servo driving cap rotating assembly and an electric rotating conductive assembly; the integrated frame outer sealing assembly forms a whole closed sterile protection cavity and serves as a whole machine bearing matrix; the negative pressure cavity sterile sealing assembly is fixed in the inner cavity of the integrated frame outer sealing assembly through bolts; the negative pressure cavity sterile sealing assembly is integrated with a cavity sealing structure and a waste gas guide structure; the servo driving cap rotating assembly is installed on the top of the negative pressure cavity sterile sealing assembly through fasteners; the servo driving cap rotating assembly is provided with multiple groups of independent servo motors and drives each cap rotating station correspondingly. The application has good sealing and negative pressure maintaining effects, can avoid cavity pollution, has high cap rotating precision of each station, a wide adaptation range, stable power supply of rotating parts and can guarantee the continuous and smooth operation of the production line.

Description

Technical Field

[0001] This invention relates to the field of food and beverage filling technology, specifically to a servo capping device for aseptic filling lines. Background Technology

[0002] Servo capping equipment in aseptic filling lines mainly assists the filling process to complete the cap tightening operation and is an indispensable core supporting equipment in aseptic filling lines.

[0003] Existing capping equipment generally consists of a frame, a negative pressure chamber, a linked capping mechanism, and a conventional conductive structure. The frame is mostly a split assembly style, and the sealing and exhaust gas diversion design of the negative pressure chamber are not perfect, making it prone to negative pressure leakage during operation. Exhaust gas backflow can contaminate the working chamber. The capping mechanism uses an integrated linkage transmission method, making it difficult to unify the capping force at each station, often resulting in bottle cap slippage or poor sealing. The rotating parts use conventional wiring for power supply, and the wiring is prone to tangling during equipment operation, leading to power outages and affecting the continuous operation of the production line. Therefore, a servo capping device for aseptic filling lines is proposed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a servo capping device for aseptic filling lines, thereby solving the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a servo capping device for an aseptic filling line, comprising: Integrated frame external sealing assembly, negative pressure chamber aseptic sealing assembly, servo-driven capping assembly, and electric rotary conductive assembly; The integrated frame outer sealing assembly forms an integral, sealed, sterile protective cavity and serves as the load-bearing base of the entire machine. The negative pressure chamber sterile sealing assembly is fixed to the internal cavity of the integrated frame outer sealing assembly by bolts. The negative pressure chamber sterile sealing assembly integrates a cavity sealing structure and an exhaust gas guiding structure; it can stably maintain the negative pressure and sterile state of the working area, effectively avoiding negative pressure leakage and exhaust gas backflow that could cause cavity contamination. The servo-driven capping assembly is mounted on the top of the negative pressure chamber aseptic sealing assembly by fasteners. The servo-driven capping assembly is equipped with multiple independent servo motors and drives each capping station accordingly. It can independently adjust the capping action and torque of each station, improve capping accuracy, and adapt to the operation of bottle caps of different specifications. The electro-rotating conductive assembly is coaxially mounted on the rotating output end of the servo-driven capping assembly. The electro-rotating conductive assembly includes a conductive slip ring and a brush contact assembly. It can maintain a continuous and stable power supply during the rotation of the equipment, avoiding faults such as wire entanglement and power interruption. The integrated frame outer sealing assembly, the negative pressure chamber aseptic sealing assembly, and the servo drive capping assembly work together in sequence to complete the cap tightening operation in a closed negative pressure aseptic environment. The electro-rotating conductive assembly continuously supplies power to the servo drive capping assembly in the rotating state.

[0006] Preferably, the integrated frame outer enclosure assembly has a bottom plate and a top plate inside. The bottom plate is arranged at the bottom of the whole machine, and the top plate is mounted parallel above the bottom plate. A support column assembly is vertically arranged between the bottom plate and the top plate, and the upper and lower ends of the support column assembly are fastened to the bottom plate and the top plate respectively by bolts.

[0007] Preferably, the integrated frame outer sealing assembly further includes a top cover shell, a cover-shifting disc assembly, and a protective plate mounting assembly; the top cover shell is installed on the outside of the support column assembly, the cover-shifting disc assembly is fixed to the front end of the top plate, and the protective plate mounting assembly is assembled on the side of the top cover shell; the top cover shell is provided with a stainless steel hinge on its side, and a spring latch is provided at the opening and closing end; one end of the stainless steel hinge is hinged to the top cover shell, and the other end is fixed to the support column assembly.

[0008] Preferably, the negative pressure chamber aseptic sealing assembly includes a negative pressure chamber body, a negative pressure chamber upper cover plate, a negative pressure chamber lower cover plate, and a negative pressure chamber sealing element; the negative pressure chamber body is positioned in the middle of the inner cavity of the frame, the negative pressure chamber upper cover plate is fastened to the upper end face of the negative pressure chamber body, the negative pressure chamber lower cover plate is assembled to the lower end face of the negative pressure chamber body, and the negative pressure chamber sealing element is clamped between the mating surfaces of the chamber body and the upper and lower cover plates.

[0009] Preferably, the exhaust gas guiding assembly includes an exhaust gas bend, an exhaust gas pipe connecting block, an upper exhaust gas pipe, a lower exhaust gas pipe, and an exhaust gas collecting block seal; the exhaust gas bend is evenly arranged along the inner side wall of the negative pressure cavity, and the outer end of the exhaust gas bend penetrates the cavity wall and connects with the exhaust gas pipe connecting block fixed on the outer side wall of the cavity; the upper exhaust gas pipe and the lower exhaust gas pipe are respectively inserted into the outer side of the exhaust gas pipe connecting block, and the exhaust gas collecting block seal is sleeved at the connection position between the exhaust gas pipe and the connecting block.

[0010] Preferably, the servo-driven capping assembly is further provided with a motor mounting plate and a motor mounting base; the motor mounting plate is horizontally fixed at the top of the negative pressure chamber sterile sealing assembly, the motor mounting base is fixed to the upper surface of the motor mounting plate by bolts, and the independent servo motor is fixedly mounted on the motor mounting base.

[0011] Preferably, the output shaft end of the servo motor is connected to a synchronous transmission assembly, and a motor tensioning assembly is hinged to the side of the motor mounting plate. The motor tensioning assembly rests against the outside of the synchronous transmission assembly. The synchronous transmission assembly includes a synchronous pulley, a synchronous belt body, an end cover, a spacer, a bearing, and a pulley fixing lock nut.

[0012] Preferably, the synchronous pulley is sleeved on the output shaft of the servo motor, and the spacer and bearing are sequentially sleeved on the output shaft and respectively disposed on both sides of the synchronous pulley; the synchronous pulley end cover is closed on the outer end of the pulley, the pulley fixing lock nut is threaded and locked on the outermost end of the output shaft, and the synchronous belt is wound between two adjacent sets of synchronous pulleys.

[0013] Preferably, the electro-rotating conductive assembly is further provided with a locking and positioning component; the locking and positioning component is fixed to the housing of the servo-driven cap assembly by bolts, the brush contact component is snapped and fixed inside the locking and positioning component, and the inner side of the brush contact component slides in contact with the outer wall of the conductive slip ring coaxially sleeved on the outer side of the rotating spindle.

[0014] Preferably, the brush contact assembly includes a brush mounting plate, a brush anti-rotation fixing plate, a brush gear, and a gear locking plate; the brush mounting plate is fixed on the locking and positioning assembly, the brush anti-rotation fixing plate is assembled inside the brush mounting plate, the brush gear is rotatably mounted on the brush anti-rotation fixing plate, and the gear locking plate is snapped onto the axial outer side of the brush gear; each assembly is a modular structure and is detachably connected to each other using bolts.

[0015] Compared with the prior art, the present invention provides a servo capping device for aseptic filling lines, which has the following beneficial effects: This invention achieves stable construction of a negative pressure sterile environment in the work area by setting an integrated frame external sealing assembly to form a sealed cavity and a negative pressure sterile sealing assembly integrating sealing and exhaust gas guiding structure. It has the advantages of high cleanliness and good sealing performance, and solves the problems of poor sterility protection, easy leakage of negative pressure, and easy backflow of exhaust gas into the cavity in traditional equipment. By configuring multiple independent servo motors to control each station through the servo drive capping assembly, the torque and action of each capping station can be independently adjusted, which has the advantages of high capping accuracy and strong adaptability, and solves the problems of uneven capping force, easy stripping or incomplete capping in traditional linkage structure. By using an electro-rotating conductive assembly with conductive slip ring and brush contact components, uninterrupted power supply is achieved for rotating parts, which has the advantages of continuous operation and stable conductivity, and solves the problems of easy wire entanglement and power interruption under rotating conditions. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 This is a schematic diagram of the integrated rack outer enclosure assembly of the present invention; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 This is a top view of the upper cover plate of the negative pressure chamber of the present invention; Figure 5 This is a top view of the negative pressure cavity sealing component of the present invention; Figure 6 This is a three-dimensional view of the servo-driven screw cap assembly of the present invention; Figure 7 This is a schematic diagram of the bottom structure of the servo motor of the present invention; Figure 8 This is a schematic diagram of the electro-rotation conductive assembly of the present invention; Figure 9 This is a three-dimensional diagram of the electro-rotation conductivity assembly of the present invention.

[0017] In the diagram: 1. Integrated frame outer sealing assembly; 2. Negative pressure chamber aseptic sealing assembly; 3. Servo-driven capping assembly; 4. Electro-rotating conductive assembly; 101. Base plate; 102. Top plate; 103. Support column assembly; 104. Upper casing; 105. Cover plate assembly; 201. Negative pressure chamber; 202. Upper cover plate of negative pressure chamber; 203. Lower cover plate of negative pressure chamber; 204. Sealing component of negative pressure chamber; 205. Exhaust gas bend; 206. Exhaust gas pipe connecting block; 207. Upper exhaust gas pipe; 208. Lower exhaust gas pipe; 209. Sealing component of exhaust gas collection block; 301. Servo motor; 302. Motor mounting plate; 303. Motor mounting base; 304. Synchronous pulley; 305. Synchronous belt body; 306. End cover; 307. Spacer; 308. Bearing; 309. Pulley fixing lock nut; 401. Conductive slip ring; 402. Brush mounting plate; 403. Brush gear; 404. Gear locking plate. Detailed Implementation

[0018] This invention provides a technical solution: a servo capping device for an aseptic filling line. Please refer to [link / reference]. Figures 1-9 ,include: The integrated frame outer sealing assembly 1, the negative pressure chamber aseptic sealing assembly 2, the servo drive capping assembly 3, and the electric rotary conductive assembly 4; The integrated frame outer sealing assembly 1 forms an integral sealed aseptic protective cavity and serves as the load-bearing base of the whole machine. The negative pressure cavity aseptic sealing assembly 2 is fixed in the internal cavity of the integrated frame outer sealing assembly 1 by bolts. The negative pressure cavity aseptic sealing assembly 2 integrates a cavity sealing structure and an exhaust gas guiding structure. The servo-driven capping assembly 3 is mounted on the top of the negative pressure chamber sterile sealing assembly 2 by fasteners. The servo-driven capping assembly 3 is equipped with multiple independent servo motors 301 and drives each capping station accordingly. The electro-rotating conductive assembly 4 is coaxially mounted on the rotation output end of the servo-driven capping assembly 3. The electro-rotating conductive assembly 4 includes a conductive slip ring 401 and a brush contact assembly. The integrated frame outer sealing assembly 1, the negative pressure chamber aseptic sealing assembly 2, and the servo drive capping assembly 3 work together in sequence to complete the cap tightening operation in a closed negative pressure aseptic environment. The electro-rotating conductive assembly 4 continuously supplies power to the servo drive capping assembly 3 in the rotating state. The entire machine relies on the integrated frame outer sealing assembly 1 to construct a sterile space, the negative pressure chamber sterile sealing assembly 2 to maintain negative pressure, multiple independent servo motors 301 to control speed and torque individually, and conductive slip rings 401 to work with brush contact components to provide continuous power. The integrated frame outer sealing assembly 1 forms a sealed sterile cavity, the negative pressure chamber sterile sealing assembly 2 takes into account both sealing and exhaust gas diversion, the independent servo motors 301 to control torque precisely, and the electric rotary conductive assembly 4 to ensure uninterrupted power supply to the rotating end. The entire machine is suitable for continuous aseptic filling operations and has strong stability.

[0019] Please see Figure 1 , Figure 2 and Figure 3 The integrated frame outer enclosure assembly 1 has a base plate 101 and a top plate 102 inside. The base plate 101 is located at the bottom of the whole machine, and the top plate 102 is mounted parallel above the base plate 101. A support column assembly 103 is vertically provided between the base plate 101 and the top plate 102. The upper and lower ends of the support column assembly 103 are fastened to the base plate 101 and the top plate 102 respectively by bolts. The base plate 101 bears the load of the whole machine, the support column group 103 evenly distributes the stress points, and the top plate 102 carries the upper components. The three are rigidly connected by bolts to ensure the flatness of the overall structure. The base plate 101, the top plate 102 and the support column group 103 form a stable load-bearing frame. The bolt connection is convenient to disassemble and assemble, the stress distribution is uniform, it can effectively bear the load of the upper components, and it is not easy to deform during long-term operation.

[0020] The integrated frame outer sealing assembly 1 also includes a capped upper sealing shell 104, a cover-shifting disc assembly 105, and a protective plate mounting assembly; the capped upper sealing shell 104 is covered on the outside of the support column assembly 103, the cover-shifting disc assembly 105 is fixed to the front end of the top plate 102, and the protective plate mounting assembly is assembled on the side of the capped upper sealing shell 104; the capped upper sealing shell 104 is provided with a stainless steel hinge on its side, and a spring latch is provided at the opening and closing end; one end of the stainless steel hinge is hinged to the capped upper sealing shell 104, and the other end is fixed to the support column assembly 103; The screw cap and top sealing shell 104 encloses to form a closed cavity, the cap-dispensing plate assembly 105 neatly conveys the bottle caps, the stainless steel hinge enables the shell to flip, and the spring buckle completes the closing and locking; the screw cap and top sealing shell 104 enhances the aseptic sealing effect, the cap-dispensing plate assembly 105 orderly conveys the bottle caps, and the stainless steel hinge and spring buckle make the opening and closing of the shell convenient for inspection and maintenance, taking into account both sealing performance and maintenance convenience.

[0021] Please see Figure 2 , Figure 3 , Figure 4 and Figure 5The negative pressure chamber aseptic sealing assembly 2 includes a negative pressure chamber body 201, a negative pressure chamber upper cover plate 202, a negative pressure chamber lower cover plate 203, and a negative pressure chamber sealing element 204; the negative pressure chamber body 201 is positioned in the middle of the inner cavity of the frame, the negative pressure chamber upper cover plate 202 is fastened to the upper end face of the negative pressure chamber body 201, the negative pressure chamber lower cover plate 203 is assembled to the lower end face of the negative pressure chamber body 201, and the negative pressure chamber sealing element 204 is clamped between the mating surfaces of the chamber body and the upper and lower cover plates; The negative pressure chamber 201 is the main body of the negative pressure operation. The upper cover plate 202 and the lower cover plate 203 of the negative pressure chamber seal both ends, and the negative pressure chamber sealing element 204 fills the gaps to prevent the intrusion of external air. The negative pressure chamber 201, together with the upper and lower cover plates, forms an independent negative pressure chamber. The negative pressure chamber sealing element 204 completely seals the assembly gaps, effectively maintaining the negative pressure environment inside the chamber, preventing the entry of external bacteria, and meeting the requirements of aseptic production.

[0022] The exhaust gas guiding assembly includes an exhaust gas bend 205, an exhaust gas pipe connecting block 206, an upper exhaust gas pipe 207, a lower exhaust gas pipe 208, and an exhaust gas collecting block seal 209. The exhaust gas bend 205 is evenly arranged along the inner wall of the negative pressure cavity 201. The outer end of the exhaust gas bend 205 penetrates the cavity wall and is connected to the exhaust gas pipe connecting block 206 fixed on the outer wall of the cavity. The upper exhaust gas pipe 207 and the lower exhaust gas pipe 208 are respectively inserted into the outer side of the exhaust gas pipe connecting block 206. The exhaust gas collecting block seal 209 is sleeved at the docking position between the exhaust gas pipe and the connecting block. The exhaust gas is collected through the exhaust gas bend 205 and discharged sequentially through the exhaust gas pipe connection block 206, the upper exhaust gas pipe 207 / lower exhaust gas pipe 208. The exhaust gas collection block seal 209 seals the pipe interface. The exhaust gas bend 205 collects the exhaust gas in the entire cavity, and the multiple pipe sections work together to discharge the exhaust gas. The exhaust gas collection block seal 209 prevents exhaust gas leakage and air backflow, and continuously ensures the negative pressure and cleanliness of the cavity.

[0023] Please see Figure 3 , Figure 6 and Figure 7 The servo-driven capping assembly 3 is also provided with a motor mounting plate 302 and a motor mounting base 303; the motor mounting plate 302 is horizontally fixed at the top of the negative pressure chamber sterile sealing assembly 2, and the motor mounting base 303 is fixed to the upper end face of the motor mounting plate 302 by bolts; the independent servo motor 301 is fixedly installed on the motor mounting base 303. The motor mounting plate 302 serves as the mounting reference surface, and the motor mounting base 303 elevates and positions the independent servo motor 301. The bolts are tightened to ensure that the motor does not shift or loosen during operation. The motor mounting plate 302 provides a flat mounting base surface, and the motor mounting base 303 accurately positions the independent servo motor 301. The bolt connection is firm and reliable, which can avoid the motor shifting and ensure stable power output.

[0024] The output shaft of the servo motor 301 is connected to a synchronous transmission assembly, and a motor tensioning assembly is hinged to the side of the motor mounting plate 302. The motor tensioning assembly rests against the outside of the synchronous transmission assembly. The synchronous transmission assembly includes a synchronous pulley 304, a synchronous belt body 305, an end cover 306, a spacer 307, a bearing 308, and a pulley fixing lock nut 309. The synchronous transmission component transmits motor power, and the motor tensioning component can push to adjust the tension, adapting to the rotational deformation of the synchronous belt 305 to prevent transmission slippage and power loss; the synchronous transmission component accurately transmits power to the independent servo motor 301, and the motor tensioning component can adjust the tension of the synchronous belt 305 in real time, effectively avoiding transmission slippage and improving the synchronization and reliability of the capping action.

[0025] Synchronous pulley 304 is sleeved on the output shaft of servo motor 301. Spacer 307 and bearing 308 are sequentially sleeved on the output shaft and respectively located on both sides of synchronous pulley 304. End cover 306 of synchronous pulley 304 is closed on the outer end of the pulley. Pulley fixing lock nut 309 is threaded and locked on the outermost end of the output shaft. Synchronous belt is wound between two adjacent sets of synchronous pulleys 304. Spacer 307 and bearing 308 limit the shaft clearance, synchronous pulley 304 works in conjunction with synchronous belt 305, and end cover 306 and pulley fixing lock nut 309 achieve axial locking to prevent detachment; spacer 307 and bearing 308 optimize the smoothness of shaft operation, end cover 306 and pulley fixing lock nut 309 prevent component movement, synchronous pulley 304 ensures smooth transmission, reduces wear, and extends the service life of transmission components.

[0026] Please see Figure 3 , Figure 8 and Figure 9 The electro-rotating conductive assembly 4 is also provided with a locking and positioning component; the locking and positioning component is fixed to the housing of the servo-driven rotary cover assembly 3 by bolts, the brush contact component is snapped and fixed inside the locking and positioning component, and the inner side of the brush contact component slides in contact with the outer wall of the conductive slip ring 401 coaxially sleeved on the outer side of the rotating spindle. The locking and positioning component fixes the position of the brush contact component, and the brush contact component slides against the outer wall of the conductive slip ring 401 to achieve conduction from the static circuit to the rotating part; the locking and positioning component stabilizes the position of the brush contact component, and the brush and the conductive slip ring 401 always maintain good contact, which can continuously conduct electricity when the equipment is running at high speed, and eliminate problems such as power failure and poor contact.

[0027] The brush contact assembly includes a brush mounting plate 402, a brush anti-rotation fixing plate, a brush gear 403, and a gear locking plate 404. The brush mounting plate 402 is fixed on the locking and positioning assembly. The brush anti-rotation fixing plate is assembled inside the brush mounting plate 402. The brush gear 403 is rotatably mounted on the brush anti-rotation fixing plate. The gear locking plate 404 is snapped onto the axial outer side of the brush gear 403. Each assembly is a modular structure and is detachably connected to each other using bolts. The brush mounting plate 402 positions each brush component, and the brush gear 403 works with the gear locking plate 404 to prevent rotation and limit movement. Each assembly is modularly designed, and the bolt connection allows for quick disassembly and assembly. The brush mounting plate 402, brush gear 403, and other structural limiters are reliable. The modular assembly can be quickly disassembled and assembled with bolts, resulting in high efficiency for component inspection and replacement, and is suitable for production line maintenance without shutdown.

[0028] This solution: During equipment operation, the integrated frame outer sealing assembly 1 creates a sealed sterile space, and the negative pressure chamber sterile sealing assembly 2 forms a negative pressure operating environment. Exhaust gas within the chamber is discharged uniformly through the exhaust gas bend 205, exhaust gas pipe connecting block 206, upper exhaust gas pipe 207, and lower exhaust gas pipe 208. The exhaust gas collection block seal 209 ensures the pipeline seal. An independent servo motor 301 outputs power, which is transmitted to torque via synchronous transmission components such as the synchronous pulley 304 and synchronous belt 305. The motor tensioning component adjusts the transmission tension in real time. In the electro-rotating conductive assembly 4, the conductive slip ring 401 cooperates with the brush contact assembly to continuously supply power to the rotating servo-driven cap assembly 3. Structures such as the brush gear 403 and gear locking plate 404 ensure the stable position of the conductive components. The base plate 101, top plate 102, and support column assembly 103 support the entire machine. The capping and sealing shell 104 and cap-shifting disc assembly 105 work together to complete the bottle cap sorting and conveying. All assemblies are connected by modular bolts. The whole machine completes the fully automatic bottle capping operation under sterile negative pressure conditions.

Claims

1. A servo capping device for an aseptic filling line, characterized in that, include: The integrated frame outer sealing assembly (1), the negative pressure chamber sterile sealing assembly (2), the servo drive capping assembly (3), and the electric rotary conductive assembly (4). The integrated frame outer sealing assembly (1) forms an integral sealed sterile protective cavity and serves as the load-bearing base of the whole machine. The negative pressure cavity sterile sealing assembly (2) is fixed in the internal cavity of the integrated frame outer sealing assembly (1) by bolts. The negative pressure cavity sterile sealing assembly (2) integrates a cavity sealing structure and an exhaust gas guiding structure. The servo-driven capping assembly (3) is installed on the top of the negative pressure chamber sterile sealing assembly (2) by fasteners. The servo-driven capping assembly (3) is equipped with multiple independent servo motors (301) and drives each capping station accordingly. The electro-rotating conductive assembly (4) is coaxially mounted on the rotating output end of the servo-driven cap assembly (3). The electro-rotating conductive assembly (4) includes a conductive slip ring (401) and a brush contact assembly. The integrated frame outer sealing assembly (1), the negative pressure chamber sterile sealing assembly (2), and the servo drive capping assembly (3) work together in sequence to complete the cap tightening operation in a closed negative pressure sterile environment. The electro-rotating conductive assembly (4) continuously supplies power to the servo drive capping assembly (3) in the rotating state.

2. The aseptic filling line servo capping device according to claim 1, characterized in that: The integrated frame outer enclosure assembly (1) is provided with a base plate (101) and a top plate (102). The base plate (101) is arranged at the bottom of the whole machine, and the top plate (102) is mounted parallel above the base plate (101). A support column assembly (103) is vertically provided between the base plate (101) and the top plate (102). The upper and lower ends of the support column assembly (103) are fastened to the base plate (101) and the top plate (102) respectively by bolts.

3. The aseptic filling line servo capping device according to claim 2, characterized in that: The integrated frame outer sealing assembly (1) also includes a cap upper sealing shell (104), a cover plate assembly (105), and a protective plate mounting assembly; the cap upper sealing shell (104) is covered on the outside of the support column assembly (103), the cover plate assembly (105) is fixed to the front end of the top plate (102), and the protective plate mounting assembly is assembled on the side of the cap upper sealing shell (104); the cap upper sealing shell (104) is provided with a stainless steel hinge on its side, and a spring buckle is provided at the opening and closing end. One end of the stainless steel hinge is hinged to the cap upper sealing shell (104), and the other end is fixed to the support column assembly (103).

4. The aseptic filling line servo capping device according to claim 1, characterized in that: The negative pressure chamber aseptic sealing assembly (2) includes a negative pressure chamber body (201), a negative pressure chamber upper cover plate (202), a negative pressure chamber lower cover plate (203), and a negative pressure chamber sealing element (204); the negative pressure chamber body (201) is positioned in the middle of the inner cavity of the frame, the negative pressure chamber upper cover plate (202) is fastened to the upper end face of the negative pressure chamber body (201), the negative pressure chamber lower cover plate (203) is assembled to the lower end face of the negative pressure chamber body (201), and the negative pressure chamber sealing element (204) is clamped between the mating surfaces of the chamber body and the upper and lower cover plates.

5. The aseptic filling line servo capping device according to claim 4, characterized in that: The exhaust gas guiding assembly includes an exhaust gas bend (205), an exhaust gas pipe connecting block (206), an upper exhaust gas pipe (207), a lower exhaust gas pipe (208), and an exhaust gas collection block seal (209). The exhaust gas bend (205) is evenly arranged along the inner wall of the negative pressure cavity (201). The outer end of the exhaust gas bend (205) penetrates the cavity wall and connects with the exhaust gas pipe connecting block (206) fixed on the outer wall of the cavity. The upper exhaust gas pipe (207) and the lower exhaust gas pipe (208) are respectively inserted into the outer side of the exhaust gas pipe connecting block (206). The exhaust gas collection block seal (209) is sleeved at the docking position between the exhaust gas pipe and the connecting block.

6. The aseptic filling line servo capping device according to claim 1, characterized in that: The servo-driven cap assembly (3) is also provided with a motor mounting plate (302) and a motor mounting base (303); the motor mounting plate (302) is horizontally fixed at the top of the negative pressure chamber sterile sealing assembly (2), the motor mounting base (303) is fixed to the upper end face of the motor mounting plate (302) by bolts, and the independent servo motor (301) is fixedly installed on the motor mounting base (303).

7. The aseptic filling line servo capping device according to claim 6, characterized in that: The output shaft end of the servo motor (301) is connected to a synchronous transmission assembly, and the motor mounting plate (302) is hinged to the side of a motor tensioning assembly, which rests against the outside of the synchronous transmission assembly. The synchronous transmission assembly includes a synchronous pulley (304), a synchronous belt body (305), an end cover (306), a spacer (307), a bearing (308), and a pulley fixing lock nut (309).

8. The aseptic filling line servo capping device according to claim 7, characterized in that: The synchronous pulley (304) is sleeved on the output shaft of the servo motor (301). The spacer (307) and bearing (308) are sequentially sleeved on the output shaft and respectively located on both sides of the synchronous pulley (304). The end cap (306) of the synchronous pulley (304) is closed on the outer end of the pulley. The pulley fixing lock nut (309) is threaded and locked on the outermost end of the output shaft. The synchronous belt is wound between two adjacent sets of synchronous pulleys (304).

9. The aseptic filling line servo capping device according to claim 1, characterized in that: The electro-rotating conductive assembly (4) is also provided with a locking and positioning component; the locking and positioning component is fixed to the housing of the servo-driven cap assembly (3) by bolts, the brush contact component is snapped and fixed inside the locking and positioning component, and the inner side of the brush contact component slides in contact with the outer wall of the conductive slip ring (401) coaxially sleeved on the outer side of the rotating spindle.

10. The aseptic filling line servo capping device according to claim 9, characterized in that: The brush contact assembly includes a brush mounting plate (402), a brush anti-rotation fixing plate, a brush gear (403), and a gear locking plate (404); the brush mounting plate (402) is fixed on the locking and positioning assembly, the brush anti-rotation fixing plate is assembled on the inner side of the brush mounting plate (402), the brush gear (403) is rotatably mounted on the brush anti-rotation fixing plate, and the gear locking plate (404) is snapped and fixed on the axial outer side of the brush gear (403).

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