BFS sterile filling machine device with filling needle drip-proof mechanism

Abstract

The invention discloses a BFS sterile filling machine device with a filling needle drip-proof mechanism, and belongs to the technical field of BFS sterile filling machines, the BFS sterile filling machine device comprises a filling machine body base, an inverted L-shaped vertical plate is fixed between a conveyor and a filling liquid box and located on the top surface of the filling machine body base, and a plurality of outer sleeves are symmetrically arranged on the inner wall of the end, close to the conveyor, of the L-shaped vertical plate; a filling inner needle is arranged in each outer sleeve, the top end of each filling inner needle is connected with a filling branch pipe in a sealed mode, the end, away from the corresponding filling inner needle, of each filling branch pipe is connected with a filling liquid box through a filling pipeline, and each outer sleeve is internally provided with a recycling cavity for recycling internal residual liquid after filling of the corresponding filling inner needle. The recycling cavity communicates with a recycling box on the back of the L-shaped vertical plate through a recycling hose. According to the invention, the common problem of liquid leakage in a traditional filling machine is effectively solved, the liquid is prevented from polluting the surface of a container or a machine tool, and the appearance quality of a product and the cleanliness of a production environment are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of BFS aseptic filling machines, in particular to a BFS aseptic filling machine device with a filling needle anti-drip mechanism. Background Art

[0002] In industries such as pharmaceuticals, food and cosmetics, liquid filling is a key link in the production process. Traditional BFS (Blow-Fill-Seal) aseptic filling machines are widely used in these industries to accurately fill liquid products into containers and ensure that the entire process meets aseptic requirements. However, existing BFS aseptic filling machines have some problems and shortcomings in practical applications, especially in the treatment of residual liquid after filling. These problems not only affect production efficiency, but may also lead to product quality degradation and environmental pollution.

[0003] Traditional filling machines are not designed with a special recovery device for residual liquid in the filling needle. After filling, the residual liquid in the filling needle will drip naturally. Since there is no guidance or collection measures, these liquids often drip directly onto the outside of the container or the machine tool. Filling machines usually rely on simple mechanical structures for filling operations, and lack the problem of liquid residue after filling. For example, the design of the filling needle is relatively simple and cannot achieve the function of quickly emptying the residual liquid. In some cases, the operator may not have enough time or conditions to manually clean the filling needle, resulting in the natural dripping of residual liquid, increasing the risk of contamination. After the liquid drips onto the machine tool or the ground, it is easy to cause contamination of the working environment, especially for the aseptic filling environment. The presence of any contaminants may destroy the aseptic conditions, increase the risk of microbial contamination of the product, and affect product quality and safety. Summary of the invention

[0004] The object of the present invention is to provide a BFS aseptic filling machine device with a filling needle anti-drip mechanism to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a BFS aseptic filling machine device with a filling needle anti-drip mechanism, comprising a filling body seat, two supporting columns symmetrically installed on the top surface of the filling body seat, and a filling liquid tank fixed between the top ends of the two supporting columns, the top surface of the filling body seat is provided with a conveyor, an inverted L-shaped vertical plate is fixed between the conveyor and the filling liquid tank and located on the top surface of the filling body seat, and a plurality of outer sleeves are symmetrically arranged on the inner wall of the L-shaped vertical plate near one end of the conveyor; A filling inner needle is arranged in each of the outer sleeves, and a filling branch tube is sealed at the top end of each of the filling inner needles. The end of the filling branch tube away from the filling inner needle is connected to the filling liquid tank through a filling pipe. Each of the outer sleeves has a recovery chamber for recovering residual liquid inside the filling inner needle after filling, and the recovery chamber is connected to the recovery box behind the L-shaped vertical plate through a recovery hose.

[0006] Preferably, the top surface of the L-shaped vertical plate is provided with a rectangular opening, a lifting plate is fitted in the rectangular opening, and an inverted U-shaped vertical pole is fixed above the lifting plate and located on the top surface of the L-shaped vertical plate.

[0007] Preferably, an electric lifting column is fixed to the middle position of the inner top wall of the U-shaped vertical pole, and the bottom lifting end of the electric lifting column is fixedly connected to the top surface of the lifting plate, so that the electric lifting column drives the lifting plate to move up and down in the rectangular opening.

[0008] Preferably, a U-shaped frame plate is welded to the bottom surface of the lifting plate, a plurality of the outer sleeves are equidistantly penetrated and fixedly installed in the U-shaped frame plate, a transversely arranged filling pipe is fixed to the top surface of the U-shaped vertical pole, and a plurality of the filling branch pipes are sealed and connected to the filling pipe.

[0009] Preferably, a fixing ring is fixed to the top of each inner filling needle, a movable frame rod is welded between two adjacent fixing rings, and a first positioning rod and a connecting vertical plate are respectively welded at both ends of the movable frame rod close to the inner walls on both sides of the U-shaped frame plate, as well as a second positioning rod welded to the bottom of the connecting vertical plate.

[0010] In the preferred embodiment of the present invention, the first positioning rod and the second positioning rod are respectively inserted through the inner walls on both sides of the U-shaped frame plate in opposite directions, so that the first positioning rod and the second positioning rod respectively penetrate the outside of both sides of the U-shaped frame plate.

[0011] Preferably, an electric push-pull rod is transversely fixed to the outer wall of one side of the connecting vertical plate facing away from the movable frame rod, and the tail seat of the electric push-pull rod is fixed to the inner wall of one side adjacent to the U-shaped frame plate by bolts.

[0012] Preferably, the recovery chamber is arranged on the inner wall at the bottom of the inner cavity of the outer sleeve, so that the filling inner needle is arranged eccentrically in the outer sleeve.

[0013] Preferably, the top end of each of the outer sleeves is threadedly connected with a removable threaded ring, the top inner wall of the outer sleeve is provided with an internal thread path, the bottom end of the removable threaded ring is integrally connected with an external threaded ring threadedly connected to the internal thread path, and the bottom surface of the external threaded ring is fixed with an arc plate extending into the outer sleeve, and the outer wall of the arc plate is tightly attached to the inner wall of the outer sleeve.

[0014] Preferably, in the present embodiment, the inner wall of one end of the arc plate extending into the outer sleeve has two ear plates symmetrically welded thereon, an impact blocking rod is hinged between the two ear plates via a pin shaft, extrusion springs are symmetrically fixed on both sides of the impact blocking rod and on the inner wall of the arc plate, and one end of the two extrusion springs away from the arc plate is fixed on the outer wall of the impact blocking rod, so that the impact blocking rod extends into the outer sleeve.

[0015] Compared with the prior art, the technical effects and advantages of the present invention are as follows: The BFS aseptic filling machine device with a filling needle anti-drip mechanism, after the filling of the traditional filling machine, the residual liquid in the filling needle will directly drip onto the outside of the container or the machine tool, causing pollution and waste. This not only affects the cleanliness of the working environment, but may also have a negative impact on the product quality. A recovery chamber is set at the bottom of the outer sleeve, which is specially used to collect the residual liquid in the filling needle. Through this design, even after the filling is completed, the residual liquid will not drip onto the machine tool, but will be guided into the recovery chamber. The recovery chamber is connected to the recovery box through a recovery hose, and the residual liquid is pumped into the recovery box for centralized treatment or recycling by a recovery suction pump. This design not only reduces liquid waste, but also avoids environmental pollution and keeps the workplace clean and hygienic. It effectively solves the common liquid dripping problem in traditional filling machines, avoids liquid contamination of the container surface or machine tool, and improves the appearance quality of the product and the cleanliness of the production environment. Since the liquid will not drip onto the machine tool, the subsequent cleaning work is reduced, the maintenance cost is reduced, and the production efficiency is improved. By recycling the residual liquid, the waste of resources is reduced, which meets the requirements of green production and sustainable development of modern manufacturing industry.

[0016] In traditional filling machines, the recovery of residual liquid usually relies on natural dripping or simple mechanical devices. The recovery speed is slow, and it is impossible to ensure that all residual liquid can be completely recovered, which easily causes some liquid to adhere to the inner wall of the filling needle. When the filling needle moves, it will hit the impact blocking rod in the arc plate. Due to the action of the extrusion spring, the impact blocking rod will quickly return to its original position after being hit, generating slight vibration. This vibration helps to shake the residual liquid in the filling needle into the recovery chamber, ensuring that the liquid can be recovered quickly and thoroughly. Through the design of the impact blocking rod, the recovery speed of the residual liquid is significantly improved, the possibility of liquid adhering to the inner wall of the filling needle is reduced, and the recovery efficiency is further improved. The vibration effect enables the residual liquid to be discharged from the filling needle more thoroughly, reducing liquid residue, keeping the filling needle clean, and extending the service life of the equipment. Since the residual liquid can be quickly recovered, it is avoided that the liquid stays on the inner wall of the filling needle for a long time, reducing the risk of bacterial growth, and is particularly suitable for aseptic filling environments.

[0017] The present invention drives the lifting plate to move up and down by an electric lifting column, ensuring that the filling inner needle can accurately extend into the container and reach a predetermined filling depth. This precise control method ensures the consistency of each filling and avoids filling volume differences caused by position deviation. The electric push-pull rod pushes the moving frame rod to move the filling inner needle horizontally in the outer sleeve, ensuring that the filling inner needle can accurately align with the recovery chamber and quickly detach from the recovery chamber after the filling is completed, avoiding unnecessary contact and contamination. Through the precise control of the electric lifting column and the electric push-pull rod, the positioning accuracy of the filling inner needle is ensured, the filling volume fluctuation is avoided, and the quality consistency of the product is improved. The automated control system replaces the traditional manual operation, reduces the impact of human factors on the filling process, and further improves the stability and reliability of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the connection structure of the L-shaped vertical plate of the present invention; Figure 3 It is a structural schematic diagram of the U-shaped frame plate of the present invention; Figure 4 It is a schematic diagram of the installation structure of the filling inner needle of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at A in the middle; Figure 6 It is a schematic diagram of the disassembly structure of the detachable threaded collar of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure at B in the middle; Figure 8 It is a cross-sectional view of the outer sleeve of the present invention.

[0020] Description of reference numerals: In the figure: 1. Filling body base; 2. Support column; 3. Filling liquid tank; 4. Filling valve pipe; 5. Filling hose; 6. Conveyor; 7. L-shaped vertical plate; 8. Outer sleeve; 9. Recovery box; 10. U-shaped vertical pole; 11. Lifting plate; 12. Filling pipeline; 13. Electric lifting column; 14. Filling branch pipe; 15. U-shaped frame plate; 16. Recovery hose; 17. Filling inner needle; 18. Moving frame rod; 19. Fixed ring; 20. First positioning rod; 21. Removable threaded collar; 22. Connecting vertical plate; 23. Electric push-pull rod; 24. Second positioning rod; 25. Arc plate; 26. Internal thread tooth path; 27. External thread ring; 28. Impact blocking rod; 29. ​​Ear plate; 30. Extrusion spring; 31. Recovery chamber. DETAILED DESCRIPTION

[0021] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0022] Unless otherwise defined, the up, down, left, right, front, back, inside and outside directions involved in this document are based on the up, down, left, right, front, back, inside and outside directions in the figures shown in the present invention, and are explained here together.

[0023] This embodiment provides Figures 1 to 8The BFS aseptic filling machine device with a filling needle anti-drip mechanism shown in the figure comprises a filling body base 1, two supporting columns 2 symmetrically installed on the top surface of the filling body base 1, and a filling liquid tank 3 fixed between the top ends of the two supporting columns 2. The filling liquid tank 3 stores the liquid to be filled and is one of the core components of the entire filling system. The liquid is transported to the filling pipeline 12 through the filling valve tube 4 and the filling hose 5, and then distributed to each filling inner needle 17, thereby realizing centralized management and precise control of the liquid, ensuring the consistency of the filling amount each time, and improving production efficiency and product consistency. The top surface of the filling machine body base 1 is provided with a conveyor 6. An inverted L-shaped vertical plate member 7 is fixed between the conveyor 6 and the filling liquid tank 3 and located on the top surface of the filling machine body base 1. A plurality of outer sleeves 8 are symmetrically arranged on the inner wall of the L-shaped vertical plate member 7 close to one end of the conveyor 6. The outer sleeve 8 provides external protection and support for the filling inner needle 17. At the same time, a recovery chamber 31 is provided at the bottom thereof to guide and fix the filling inner needle 17 and collect residual liquid after the filling is completed to prevent dripping, thereby effectively avoiding pollution caused by liquid leakage, protecting the working environment, and supporting environmental protection measures. Each outer sleeve 8 is provided with a filling inner needle 17, and the top of each filling inner needle 17 is sealedly connected with a filling branch pipe 14. The end of the filling branch pipe 14 away from the filling inner needle 17 is connected to the filling liquid tank 3 through the filling pipe 12. Each outer sleeve 8 has a recovery chamber 31 for recovering the residual liquid inside the filling inner needle 17 after filling. The recovery chamber 31 is connected to the recovery box 9 behind the L-shaped plate 7 through the recovery hose 16. The residual liquid in the filling inner needle 17 after filling drips into the recovery chamber 31, and the dripping liquid collected in the recovery chamber 31 is recovered into the recovery box 9 through the recovery suction pump on the top surface of the recovery box 9 and the recovery hose 16. The recovery box 9 collects the residual liquid recovered by the recovery chamber 31 in a centralized manner, is connected to the recovery chamber 31 through the recovery hose 16, and uses the recovery suction pump to pump the liquid back to the recovery box 9, so as to realize the secondary utilization or centralized treatment of the residual liquid, reduce the waste of resources, and meet the requirements of environmental protection. The filling inner needle 17 is a key component for directly contacting the container for liquid filling. Through the sealing connection at the top, the liquid is introduced into the container from the filling branch pipe 14, and after the filling is completed, the residual liquid is vibrated and dropped with the help of the impact blocking rod 28, thereby ensuring the smooth filling of the liquid, reducing the adhesion of the residual liquid, and improving the cleanliness and recovery efficiency.

[0024] In this embodiment, a rectangular opening is formed on the top surface of the L-shaped plate member 7 , in which a lifting plate 11 is fitted. An inverted U-shaped pole 10 is fixed above the lifting plate 11 and on the top surface of the L-shaped plate member 7 .

[0025] In this embodiment, an electric lifting column 13 is fixed in the middle position of the inner top wall of the U-shaped pole 10, and the bottom lifting end of the electric lifting column 13 is fixedly connected to the top surface of the lifting plate 11, so that the electric lifting column 13 drives the lifting plate 11 to move up and down in the rectangular opening.

[0026] In this embodiment, a U-shaped frame plate 15 is welded to the bottom surface of the lifting plate 11, and multiple outer sleeves 8 are equidistantly penetrated and fixedly installed in the U-shaped frame plate 15. A transversely arranged filling pipe 12 is fixed to the top surface of the U-shaped vertical pole 10, and multiple filling branch pipes 14 are all sealed and connected to the filling pipe 12.

[0027] In this embodiment, a fixing ring 19 is fixed to the top of each filling inner needle 17, and a movable frame rod 18 is welded between two adjacent fixing rings 19. The two ends of the movable frame rod 18 close to the inner walls on both sides of the U-shaped frame plate 15 are respectively welded with a first positioning rod 20 and a connecting vertical plate 22, and a second positioning rod 24 welded to the bottom of the connecting vertical plate 22.

[0028] In this embodiment, the first positioning rod 20 and the second positioning rod 24 are respectively inserted through the inner walls of the U-shaped frame plate 15 on both sides, so that the first positioning rod 20 and the second positioning rod 24 respectively penetrate the outside of the two sides of the U-shaped frame plate 15.

[0029] In this embodiment, an electric push-pull rod 23 is transversely fixed to the outer wall of the connecting vertical plate 22 on the side facing away from the moving frame rod 18, and the tailstock of the electric push-pull rod 23 is fixed to the inner wall of the side adjacent to the U-shaped frame plate 15 by bolts. The electric push-pull rod 23 pushes the connecting vertical plate 22, thereby pushing the moving frame rod 18 to move horizontally, so that the first positioning rod 20 is pushed and moved horizontally on one side of the U-shaped frame plate 15, so that the moving frame rod 18 drives each filling inner needle 17 to move in the direction of arrow A in the outer sleeve 8, so that the filling inner needle 17 moves in the outer sleeve 8 to the top of the recovery chamber 31, so that the bottom end of the filling inner needle 17 is just aligned with the recovery chamber 31, which helps the residual liquid in the filling inner needle 17 to drip into the recovery chamber 31, helps to recover the residual liquid and prevents it from dripping on the machine tool. When the electric push-pull rod 23 pulls the connecting vertical plate 22 backward, the connecting vertical plate 22 drives the moving frame rod 18 to retreat, so that the second positioning rod 24 moves horizontally backward on the other side of the U-shaped frame plate 15. The design of the first positioning rod 20 and the second positioning rod 24 facilitates the horizontal positioning and lateral movement of the moving frame rod 18, thereby improving the stable movement of the filling inner needle 17 and preventing movement deviation. When the moving frame rod 18 retreats, the moving frame rod 18 drives each filling inner needle 17 to move in the direction of arrow B in each corresponding outer sleeve 8, so that the filling inner needle 17 aligned with the recovery chamber 31 retreats away from the recovery chamber 31, thereby facilitating the filling inner needle 17 to deviate above the recovery chamber 31, so that the filling inner needle 17 continues the filling operation. The electric push-pull rod 23 drives the movable frame rod 18 and the filling inner needle 17 to move horizontally in the outer sleeve 8. Through the push-pull action, the filling inner needle 17 is aligned with or deviated from the recovery chamber 31, thereby controlling the recovery of residual liquid, realizing the automatic control of the filling and recovery process, and improving the convenience and efficiency of operation.

[0030] In this embodiment, the recovery chamber 31 is arranged on the inner wall of the bottom of the inner cavity of the outer sleeve 8 , so that the filling inner needle 17 is eccentrically arranged in the outer sleeve 8 .

[0031] In this embodiment, the top of each outer sleeve 8 is threadedly connected with a removable threaded ring 21, the top inner wall of the outer sleeve 8 is provided with an internal threaded path 26, the bottom end of the removable threaded ring 21 is integrally connected with an external threaded ring 27 threadedly connected to the internal threaded path 26, and the bottom surface of the external threaded ring 27 is fixed with an arc plate 25 extending into the outer sleeve 8, and the outer wall of the arc plate 25 is tightly attached to the inner wall of the outer sleeve 8.

[0032] In this embodiment, two ear plates 29 are symmetrically welded on the inner wall of one end of the arc plate 25 extending into the outer sleeve 8, and an impact blocking rod 28 is hinged between the two ear plates 29 through a pin shaft. Extrusion springs 30 are symmetrically fixed on both sides of the impact blocking rod 28 and located on the inner wall of the arc plate 25. The ends of the two extrusion springs 30 away from the arc plate 25 are fixed on the outer wall of the impact blocking rod 28, so that the impact blocking rod 28 extends into the outer sleeve 8. When the electric push-pull rod 23 pushes and pulls the moving rack rod 18, each filling inner needle 17 is driven to move horizontally in each corresponding outer sleeve 8. During the movement of the filling inner needle 17, the filling inner needle 17 hits the impact blocking rod 28. Under the design of the extrusion spring 30, the impact blocking rod 28 can be driven to open by the filling inner needle 17. At the same time, under the elastic force of the two extrusion springs 30, it elastically hits the filling inner needle 17, thereby hitting the filling inner needle 17, so that the residual liquid in the filling inner needle 17 is vibrated and hit and drips into the recovery chamber 31, thereby further improving the rapid dripping of the residual liquid, preventing the residual liquid from adhering to the inner wall of the filling inner needle 17, and improving the rapid recovery efficiency of the residual liquid. The impact blocking rod 28 is hinged between the ear plates 29 on the inner wall of the arc plate 25, and the two sides are fixed by the extrusion spring 30. When the filling inner needle 17 moves, it will hit the impact blocking rod 28. The elastic force of the extrusion spring 30 enables the impact blocking rod 28 to be opened and rebounded, helping the residual liquid in the filling inner needle 17 to drip into the recovery chamber 31 faster due to vibration, thereby improving the recovery speed and efficiency of the residual liquid, reducing the possibility of liquid adhering to the inner wall of the filling inner needle 17, and further improving the cleanliness and environmental protection performance. The bottom surface of the filling liquid tank 3 is connected through the filling valve pipe 4, which controls the flow of liquid from the filling liquid tank 3 to the filling hose 5, adjusts the liquid flow, and controls the start and stop of filling by opening / closing the valve, providing effective management of the filling process, reducing waste, and facilitating cleaning and replacement of different types of liquids.

[0033] In this embodiment, the output end of the filling valve tube 4 is sealed and connected with a filling hose 5, and one end of the filling hose 5 away from the filling valve tube 4 is sealed and connected with the filling pipe 12, and the pipe fitting includes a recovery hose 16, one end of the recovery hose 16 passes through the recovery chamber 31, and the other end of the recovery hose 16 passes through the L-shaped plate 7 and is connected to the recovery box 9 through a recovery suction pump. When the residual liquid dripping from the filling inner needle 17 drips into the recovery chamber 31, the recovery suction pump is turned on, and the residual liquid recovered in the recovery chamber 31 is recovered into the recovery box 9 through the recovery hose 16, so that the liquid collected in the recovery box 9 can be centrally processed or centrally transported to the filling liquid tank 3 for recycling. The valve in the filling valve tube 4 is opened, so that the liquid in the filling liquid tank 3 is transported from the filling hose 5 to the filling pipe 12, and then the liquid in the filling pipe 12 is branched and transported to each filling inner needle 17 through the filling branch pipe 14, so that the filling port at the bottom end of the filling inner needle 17 is offset from the outer sleeve 8 to the gap of the recovery chamber 31 toward the container to fill the liquid.

[0034] In this embodiment, when the electric lifting column 13 drives the lifting plate 11 to move downward, the outer sleeve 8 and the filling inner needle 17 are lowered and aligned to extend into the container to be filled. After the filling is completed, the lifting plate 11 is lifted by the electric lifting column 13, so that the outer sleeve 8 and the filling inner needle 17 are lifted and separated from the container to be filled. The container is transported in the conveyor 6.

[0035] Working principle: The BFS aseptic filling machine with a needle anti-drip mechanism, the operator starts the BFS aseptic filling machine, ensures that all components are in normal working condition, checks whether the liquid in the filling liquid tank 3 is sufficient, and sets the required filling volume, speed, temperature and other parameters through the control system PLC to ensure that the production requirements are met.

[0036] The container to be filled is automatically transported to the filling position by the conveyor 6. The speed of the conveyor 6 can be adjusted according to production requirements to ensure that the container can smoothly enter the filling area. When the container reaches the specified position, the conveyor 6 stops to ensure that the container is located below the correct filling point. At this time, the outer sleeve 8 and the filling inner needle 17 on the L-shaped plate 7 are ready and waiting to be lowered for filling. The electric lifting column 13 starts to work, driving the lifting plate 11 and the U-shaped frame plate 15 and the outer sleeve 8 thereon to descend. As the lifting plate 11 descends, the filling inner needle 17 gradually extends into the container until it reaches the predetermined filling depth. During the descent, the outer sleeve 8 and the filling inner needle 17 remain vertically aligned to ensure that each filling inner needle 17 can be accurately inserted into the corresponding container mouth. This process is achieved through the precise control of the electric lifting column 13.

[0037] When the filling inner needle 17 is fully inserted into the container, the control system PLC opens the valve of the filling valve tube 4, and the liquid enters the filling pipeline 12 from the filling liquid tank 3 through the filling hose 5, and is then distributed to each filling inner needle 17 through the filling branch pipe 14. The liquid flows into the container through the filling port at the bottom of the filling inner needle 17, and the filling amount is accurately controlled by the control system PLC to ensure the consistency of each filling. During the filling process, the liquid flows smoothly, avoiding bubbles and splashing.

[0038] When the preset filling volume is reached, the control system closes the valve of the filling valve tube 4 to stop the liquid from flowing in. At this time, a small amount of liquid may still remain in the filling inner needle 17. In order to prevent the residual liquid from dripping onto the outside of the container or the machine tool, the electric push-pull rod 23 pushes the moving frame rod 18 to move the filling inner needle 17 horizontally in the outer sleeve 8. When the filling inner needle 17 hits the impact blocking rod 28 in the arc plate 25, the action of the extrusion spring 30 causes the impact blocking rod 28 to bounce off and quickly return to its original position, generating slight vibration. This vibration helps to shake the residual liquid in the filling inner needle 17 into the recovery chamber 31.

[0039] The recovery chamber 31 is located at the bottom of the outer sleeve 8 and collects the residual liquid dripping from the filling inner needle 17. The recovery hose 16 pumps the liquid in the recovery chamber 31 to the recovery box 9, and the recovery suction pump is used for centralized treatment or recycling. This process effectively prevents liquid leakage and keeps the working environment clean.

[0040] After filling and recycling are completed, the electric lifting column 13 works in the reverse direction, driving the lifting plate 11 and the components thereon to rise, so that the filling inner needle 17 is withdrawn from the container. This process is also achieved through the precise control of the electric lifting column 13, ensuring that the filling inner needle 17 is smoothly separated from the container. When the filling inner needle 17 is completely withdrawn from the container, the electric lifting column 13 drives the entire assembly back to the initial position, ready for the next filling.

[0041] After the filling inner needle 17 is fully withdrawn, the conveyor 6 is restarted to transport the filled container away from the filling area. Meanwhile, new empty containers are transported in and are ready for the next round of filling.

[0042] The entire filling process is continuous, and the system PLC will automatically repeat the above steps according to the set production rhythm to ensure efficient and stable filling operations. The filling time, liquid volume and recovery process of each container are strictly controlled to ensure the quality and consistency of the product.

[0043] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A BFS aseptic filling machine device with a filling needle anti-drip mechanism, comprising a filling machine body base (1), two supporting columns (2) symmetrically mounted on the top surface of the filling machine body base (1), and a filling liquid tank (3) fixed between the top ends of the two supporting columns (2), characterized in that: The top surface of the filling machine body seat (1) is provided with a conveyor (6); an inverted L-shaped vertical plate member (7) is fixed between the conveyor (6) and the filling liquid box (3) and located on the top surface of the filling machine body seat (1); a plurality of outer sleeves (8) are symmetrically arranged on the inner wall of the L-shaped vertical plate member (7) close to one end of the conveyor (6); Each of the outer sleeves (8) is provided with a filling inner needle (17), and the top end of each of the filling inner needles (17) is sealedly connected to a filling branch pipe (14), and the end of the filling branch pipe (14) away from the filling inner needle (17) is connected to the filling liquid tank (3) through a filling pipe (12), and each of the outer sleeves (8) has a recovery chamber (31) for recovering residual liquid inside the filling inner needle (17) after filling, and the recovery chamber (31) is connected to the recovery box (9) behind the L-shaped vertical plate (7) through a recovery hose (16).

2. A BFS aseptic filling machine device with a filling needle anti-drip mechanism according to claim 1, characterized in that: A rectangular opening is provided on the top surface of the L-shaped vertical plate member (7), a lifting plate (11) is fitted in the rectangular opening, and an inverted U-shaped vertical pole (10) is fixed above the lifting plate (11) and located on the top surface of the L-shaped vertical plate member (7).

3. A BFS aseptic filling machine device with a filling needle anti-drip mechanism according to claim 2, characterized in that: An electric lifting column (13) is fixed at the middle position of the inner top wall of the U-shaped upright pole (10), and the bottom lifting end of the electric lifting column (13) is fixedly connected to the top surface of the lifting plate (11), so that the electric lifting column (13) drives the lifting plate (11) to move up and down in the rectangular opening.

4. A BFS aseptic filling machine device with a filling needle anti-drip mechanism according to claim 3, characterized in that: A U-shaped frame plate (15) is welded to the bottom surface of the lifting plate (11), and a plurality of the outer sleeves (8) are equidistantly penetrated and fixedly installed in the U-shaped frame plate (15). A transversely arranged filling pipe (12) is fixed to the top surface of the U-shaped upright pole (10), and a plurality of the filling branch pipes (14) are all sealed and connected to the filling pipe (12).

5. A BFS aseptic filling machine device with a filling needle anti-drip mechanism according to claim 4, characterized in that: A fixing ring (19) is fixed to the top of each filling inner needle (17), and a movable frame rod (18) is welded between two adjacent fixing rings (19). The two ends of the movable frame rod (18) close to the inner walls on both sides of the U-shaped frame plate (15) are respectively welded with a first positioning rod (20) and a connecting vertical plate (22), and a second positioning rod (24) welded to the bottom of the connecting vertical plate (22).

6. A BFS aseptic filling machine device with a filling needle anti-drip mechanism according to claim 5, characterized in that: The first positioning rod (20) and the second positioning rod (24) are respectively inserted through the inner walls of the two sides of the U-shaped frame plate (15) in opposite directions, so that the first positioning rod (20) and the second positioning rod (24) are respectively inserted through the outside of the two sides of the U-shaped frame plate (15).

7. A BFS aseptic filling machine device with a filling needle anti-drip mechanism according to claim 6, characterized in that: An electric push-pull rod (23) is transversely fixed to an outer wall of the connecting vertical plate (22) on one side facing away from the movable frame rod (18), and a tail seat of the electric push-pull rod (23) is fixed to an inner wall of an adjacent side of the U-shaped frame plate (15) by means of bolts.

8. The BFS aseptic filling machine device with a filling needle anti-drip mechanism according to claim 7, characterized in that: The recovery chamber (31) is arranged on the inner wall of the bottom of the inner chamber of the outer sleeve (8), so that the filling inner needle (17) is arranged eccentrically in the outer sleeve (8).

9. A BFS aseptic filling machine device with a filling needle anti-drip mechanism according to claim 8, characterized in that: The top end of each outer sleeve (8) is threadedly connected to a detachable threaded collar (21), the top inner wall of the outer sleeve (8) is provided with an internal threaded path (26), the bottom end of the detachable threaded collar (21) is integrally connected to an external threaded ring (27) threadedly connected to the internal threaded path (26), the bottom surface of the external threaded ring (27) is fixed with an arc plate (25) extending into the outer sleeve (8), and the outer wall of the arc plate (25) is tightly attached to the inner wall of the outer sleeve (8).

10. A BFS aseptic filling machine device with a filling needle anti-drip mechanism according to claim 9, characterized in that: Two ear plates (29) are symmetrically welded to the inner wall of one end of the arc plate (25) extending into the outer sleeve (8); an impact blocking rod (28) is hinged between the two ear plates (29) via a pin shaft; extrusion springs (30) are symmetrically fixed on both sides of the impact blocking rod (28) and located on the inner wall of the arc plate (25); one end of the two extrusion springs (30) away from the arc plate (25) is fixed to the outer wall of the impact blocking rod (28), so that the impact blocking rod (28) extends into the outer sleeve (8).

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