BFS sterile filling machine device with filling needle spacing adjusting mechanism

By designing the needle spacing adjustment mechanism in the BFS sterile filling machine, the design of the slide chute and slider seat and the coordinated work of hydraulic and electric lifting columns, the problems of equipment diversity and low production efficiency caused by the fixed needle spacing of the traditional filling machine are solved, and the equipment is efficient and versatile and production accuracy are achieved.

CN119706715APending Publication Date: 2025-03-28CHENGDU PUSH PHARM CO LTD
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Patent Information

Application Number
CN202411994391.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The filling needle spacing of traditional BFS sterile filling machines is fixed and cannot be adjusted according to containers of different specifications. This leads to the need to frequently replace the entire filling system or use different equipment during multiple varieties and small batches, which increases the cost of equipment investment and maintenance, and is cumbersome to operate, which easily introduces human errors and affects production efficiency and product quality.

Method used

A BFS sterile filling machine device with a needle filling pitch adjustment mechanism is designed. By setting a slide groove and a slider seat between the lift plate and the distance adjustment lift plate, the distance between the filling needles can be flexibly adjusted according to containers of different specifications. The device adopts the coordinated work of hydraulic lifting columns and electric lifting columns, and by precisely controlling the lifting and lowering action, real-time adjustment of needle filling spacing is achieved.

Benefits of technology

This design improves the versatility and adaptability of the equipment, can meet the filling needs of a variety of container sizes and shapes, reduces line change time, improves production efficiency, and ensures filling accuracy through precise control, reduces artificial errors and improves product quality.

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Abstract

The invention discloses a BFS sterile filling machine device with a filling needle distance adjusting mechanism, and belongs to the technical field of BFS sterile filling machines.The BFS sterile filling machine device comprises a filling machine table, a first sliding groove is transversely formed in the middle of the top face of a lifting plate, a plurality of first sliding block bases are arranged in the first sliding groove at equal intervals, and first filling needles are longitudinally arranged on the bottom face of each first sliding block base; an inverted U-shaped frame rod is welded to the position, located on the top face of the L-shaped fixing vertical plate, above the lifting plate, a distance adjusting lifting plate is arranged in the U-shaped frame rod in a lifting mode, a second sliding groove is transversely formed in the distance adjusting lifting plate, and a plurality of second sliding block bases are arranged in the second sliding groove at equal intervals; a second filling needle is longitudinally arranged on the bottom face of each second sliding block base, and the distance adjusting lifting plate descends so that each second filling needle can be inserted between every two adjacent first sliding block bases. The distance between the first filling needle and the second filling needle can be flexibly adjusted according to containers of different specifications.
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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 spacing adjustment mechanism. Background Art

[0002] In the production process of modern food, pharmaceutical and cosmetic industries, aseptic filling machines are key equipment to ensure product quality and safety.

[0003] BFS aseptic filling machine includes dispensing equipment, conveying pipelines, and plastic bottle molds. When filling different containers, the conveying pipelines and plastic bottle molds need to be adjusted and switched according to the different specifications of the containers, and the filling needles also need to be switched to match.

[0004] For this reason, traditional BFS aseptic filling machines usually adopt a fixed filling needle spacing design, that is, the distance between the filling needles is pre-set and cannot be adjusted according to the different specifications of the container. Although this fixed spacing design performs well in certain specific application scenarios, it has obvious limitations when facing multi-variety and small-batch production.

[0005] The filling needle spacing of traditional aseptic filling machines is fixed and cannot be adjusted according to containers of different specifications. This results in companies having to frequently replace the entire filling system or use different equipment when producing products of multiple specifications, increasing equipment investment and maintenance costs. When it is necessary to switch containers of different specifications, operators need to manually replace the filling needles, which is not only time-consuming and labor-intensive, but also prone to human errors, affecting production efficiency and product quality. Summary of the invention

[0006] The purpose of the invention is to provide a BFS aseptic filling machine device with a filling needle spacing adjustment mechanism to solve the problems raised in the background technology.

[0007] To achieve the above-mentioned purpose, the invention provides the following technical solutions: a BFS aseptic filling machine device with a filling needle spacing adjustment mechanism, comprising a filling machine platform, a filling liquid tank is arranged on the top surface of the filling machine platform, an inverted L-fixed vertical plate is fixed below one side of the filling liquid tank and located on the top surface of the filling machine platform, a conveyor is arranged on the side of the L-fixed vertical plate facing away from the filling liquid tank and located on the top surface of the filling machine platform, and a lifting plate is embedded in the top surface of one end of the L-fixed vertical plate close to the conveyor; A first slide groove is horizontally provided in the middle of the top surface of the lifting plate, a plurality of first slider seats are equidistantly arranged in the first slide groove, a first filling needle is longitudinally provided on the bottom surface of each of the first slider seats, an inverted U-shaped frame rod is welded above the lifting plate and on the top surface of the L-fixed vertical plate, a spacing adjustment lifting plate is provided inside the U-shaped frame rod for lifting, a second slide groove is horizontally provided inside the spacing adjustment lifting plate, a plurality of second slider seats are equidistantly arranged in the second slide groove, a second filling needle is longitudinally provided on the bottom surface of each of the second slider seats, and the spacing adjustment lifting plate is lowered so that each of the second filling needles is inserted between two adjacent first slider seats.

[0008] Preferably, the top surface of the L-fixed vertical plate is provided with a rectangular opening for the lifting plate to fit into, and an inverted L-hanging plate is welded to one side of the lifting plate and located on the top surface of the L-fixed vertical plate.

[0009] Preferably, a hydraulic lifting column is fixedly mounted on the inner top wall of the L-shaped lifting plate by bolts, and a bottom lifting end of the hydraulic lifting column is fixedly connected to the top surface of the lifting plate by bolts.

[0010] Preferably, an electric lifting column is fixed to the middle position of the inner top wall of the U-shaped frame rod, and the bottom free end of the electric lifting column is fixedly connected to the middle position of the top surface of the spacing adjustment lifting plate.

[0011] Preferably, a plurality of spacing screw holes are equidistantly provided on an outer wall of one side of the spacing adjustment lifting plate, locking bolts are threadedly connected in the spacing screw holes, and the screw end of the locking bolt is threadedly fixed to the second slider seat in the first sliding groove.

[0012] Preferably, in this solution, both inner walls of the second slide groove are provided with positioning slide grooves, and both outer walls of each of the first slider seats are provided with positioning sliders slidably connected in the positioning slide grooves, and each of the positioning sliders is firmly connected to the positioning slide groove through a magnetic attraction component.

[0013] Preferably, the magnetic attraction component includes a first magnet block respectively bonded to the inner walls of the two positioning slide grooves and a second magnet block bonded to the outer wall of each positioning slide block.

[0014] Preferably, in this solution, scale lines are provided on the top surfaces of one side of the spacing adjustment lifting plate and the second slide groove, so that each of the first sliding block seats is arranged equidistantly in the second slide groove and each of the second sliding block seats is arranged equidistantly in the first slide groove.

[0015] Preferably, the bottom surface of the filling liquid box is provided with a filling valve tube, the top surface of the U-shaped frame rod is fixedly mounted with a first liquid tube, and one side of the U-shaped frame rod and located on the top surface of the L fixed vertical plate is fixedly mounted with a second liquid tube.

[0016] Preferably, a connecting tube is longitudinally penetrated inside the first slider seat and the second slider seat, and an externally threaded connecting tube is integrally formed at the bottom end of the connecting tube, and the externally threaded connecting tube is threadedly connected to the first filling needle and the second filling needle.

[0017] Compared with the prior art, the technical effects and advantages of the invention are: The BFS aseptic filling machine device with a filling needle spacing adjustment mechanism, the filling needle spacing adjustment mechanism, by setting the first chute and the second chute between the lifting plate and the spacing adjustment lifting plate, and equipped with a plurality of first slider seats and second slider seats, so that the distance between the first filling needle and the second filling needle can be flexibly adjusted according to containers of different specifications. This design greatly improves the versatility and adaptability of the equipment, and can meet the filling needs of various container sizes and shapes without frequently replacing the entire filling system. By driving the spacing adjustment lifting plate up and down through the electric lifting column, the position of the second filling needle can be quickly changed, and the filling needle spacing can be adjusted instantly. This function is particularly suitable for multi-variety and small-batch production on the production line, reducing line change time and improving production efficiency.

[0018] The coordinated work of the hydraulic and electric lifting columns ensures smooth and precise lifting of the filling needles. The precise control of the lifting process by the control system avoids liquid splashing or container damage caused by sudden movements, ensuring that each container can obtain the correct filling amount. The setting of the scale line provides an intuitive reference for the operator, helping them to adjust the filling needle spacing more accurately to ensure the consistency and stability of each filling. This design not only improves the filling accuracy, but also simplifies the operation process and reduces human errors.

[0019] The use of the first and second magnet blocks enables the positioning slider to be firmly adsorbed in the positioning slot to prevent sliding. This design not only ensures the stability of the filling needle during operation, but also extends the service life of the equipment and reduces maintenance costs. The design of the external threaded connection tube makes the filling needle easy to disassemble and clean, ensuring the hygiene standards of the equipment. At the same time, the design of the removable end cap facilitates the inspection and maintenance of internal components, further improving the reliability and durability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the 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 invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic diagram of the structure of the invention; Figure 2 A schematic diagram of the installation structure of the first filling needle and the second filling needle of the invention; Figure 3 A schematic diagram of the installation structure of the second slider seat of the invention; Figure 4 A cross-sectional view of the lifting plate of the invention.

[0022] Description of reference numerals: In the figure: 1. filling machine; 2. supporting column; 3. filling liquid tank; 4. filling valve pipe; 5. first liquid pipe; 6. conveyor; 7. L fixed vertical plate; 8. first filling needle; 9. first connecting hose; 10. U-shaped frame rod; 11. first slide; 12. lifting plate; 13. L lifting plate; 14. hydraulic lifting column; 15. second liquid pipe; 16. second slide; 17. first slider seat; 18. second connecting hose; 19. spacing adjustment lifting plate; 20. second slider seat; 21. electric lifting column; 22. second filling needle; 23. spacing screw hole; 24. locking bolt; 25. removable end cover; 26. branch hose; 27. scale line; 28. positioning slide; 29. ​​first magnet block; 30. positioning slider; 31. second magnet block; 32. external threaded connecting pipe; 33. third connecting hose. DETAILED DESCRIPTION

[0023] In the following description, a large number of specific details are given to provide a more thorough understanding of the invention. However, it is obvious to those skilled in the art that the invention can be implemented without one or more of these details. In other examples, some technical features known in the art are not described in order to avoid confusion with the invention.

[0024] 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 invention, and are explained here together.

[0025] Example 1 This program provides Figures 1 to 4The BFS aseptic filling machine device with a filling needle spacing adjustment mechanism shown in the figure comprises a filling machine platform 1, a filling liquid tank 3 is arranged on the top surface of the filling machine platform 1, an inverted L fixed vertical plate 7 is fixed below one side of the filling liquid tank 3 and located on the top surface of the filling machine platform 1, a conveyor 6 is arranged on the side of the L fixed vertical plate 7 facing away from the filling liquid tank 3 and located on the top surface of the filling machine platform 1, a lifting plate 12 is embedded in the top surface of one end of the L fixed vertical plate 7 close to the conveyor 6, a first chute 11 is horizontally opened in the middle position of the top surface of the lifting plate 12, a plurality of first slider seats 17 are arranged at equal distances in the first chute 11, and a first filling needle 8 is longitudinally arranged on the bottom surface of each first slider seat 17, and the lifting plate An inverted U-shaped frame rod 10 is welded above 12 and on the top surface of the L fixed vertical plate 7. A spacing adjustment lifting plate 19 is set inside the U-shaped frame rod 10 for lifting. A second slide groove 16 is horizontally opened inside the spacing adjustment lifting plate 19. A plurality of second slider seats 20 are evenly arranged in the second slide groove 16. A second filling needle 22 is longitudinally arranged on the bottom surface of each second slider seat 20. The spacing adjustment lifting plate 19 descends so that each second filling needle 22 is plugged into between two adjacent first slider seats 17. The spacing of the filling needles is changed by descending, plugging and rising the second filling needle 22, so as to meet the filling of containers of different specifications and the spacing adjustment of different containers.

[0026] In this embodiment, a rectangular opening is provided on the top surface of the L-fixed vertical plate 7 for the lifting plate 12 to fit in, and an inverted L-hanging plate 13 is welded on one side of the lifting plate 12 and on the top surface of the L-fixed vertical plate 7 .

[0027] In this embodiment, a hydraulic lifting column 14 is fixedly installed on the inner top wall of the L lifting plate 13 by bolts, and the bottom lifting end of the hydraulic lifting column 14 is fixedly connected to the top surface of the lifting plate 12 by bolts, so that when the hydraulic lifting column 14 drives the lifting plate 12 to rise and fall, it drives the first filling needle 8 to be inserted into the container to be filled.

[0028] In this embodiment, an electric lifting column 21 is fixed at the middle position of the inner top wall of the U-shaped frame rod 10, and the bottom free end of the electric lifting column 21 is fixedly connected to the middle position of the top surface of the spacing adjustment lifting plate 19. The electric lifting column 21 drives the spacing adjustment lifting plate 19 to rise and fall, so that the second filling needle 22 is longitudinally raised and lowered between two adjacent first filling needles 8.

[0029] In this embodiment, a plurality of spacing screw holes 23 are equidistantly provided on the outer wall of one side of the spacing adjustment lifting plate 19 , and locking bolts 24 are threadedly connected in the spacing screw holes 23 , and the screw ends of the locking bolts 24 are threadedly fixed together with the second slider seat 20 in the first slide groove 11 .

[0030] In this embodiment, positioning grooves 28 are provided on both side inner walls of the second slide groove 16, and positioning sliders 30 slidably connected in the positioning grooves 28 are provided on both side outer walls of each first slider seat 17, and each positioning slider 30 is firmly connected to the positioning groove 28 through a magnetic attraction component.

[0031] In this embodiment, the magnetic attraction component includes a first magnet block 29 bonded to the inner walls of the two positioning slots 28 and a second magnet block 31 bonded to the outer wall of each positioning slider 30. When the first slider seat 17 is slidably connected to the second slot 16, the two positioning sliders 30 of the first slider seat 17 are adapted to the positioning slot 28 and slide in the positioning slot 28, thereby adjusting the position of the first slider seat 17 in the second slot 16, and the first magnet block 29 and the second magnet block 31 are magnetically attracted.

[0032] In this embodiment, the spacing adjustment lifting plate 19 and the top surface of one side of the second slide groove 16 are both provided with scale lines 27, so that each first slider seat 17 is arranged equidistantly in the second slide groove 16 and each second slider seat 20 is arranged equidistantly in the first slide groove 11.

[0033] In this embodiment, a filling valve tube 4 is provided on the bottom surface of the filling liquid tank 3, a first liquid tube 5 is fixedly installed on the top surface of the U-shaped frame rod 10, a second liquid tube 15 is fixedly installed on one side of the U-shaped frame rod 10 and on the top surface of the L fixed vertical plate 7, and the free end of the filling valve tube 4 is connected to a three-way branch tube, one output end of the three-way branch tube is connected to the first liquid tube 5 through the first connecting hose 9, and the other output end is connected to the second liquid tube 15 through the third connecting hose 33. At the same time, the first connecting hose 9 and the third connecting hose 33 have solenoid valves at one end close to the filling valve tube 4, which are used to control the filling liquid in the filling liquid tank 3 to flow to the first connecting hose 9 or the third connecting hose 33 through the filling valve tube 4.

[0034] In this embodiment, a connecting tube is longitudinally penetrated inside the first slider seat 17 and the second slider seat 20, and an externally threaded connecting tube 32 is integrally formed at the bottom of the connecting tube. The externally threaded connecting tube 32 is threadedly connected to the first filling needle 8 and the second filling needle 22, and the top of the connecting tube extends to the upper outside of the first slider seat 17 and the second slider seat 20. The top of the first slider seat 17 is connected to the second liquid pipe 15 through the second connecting hose 18, so that the filling liquid in the second liquid pipe 15 flows from the second connecting hose 18 to the first filling needle 8. The top of the second slider seat 20 is connected to the first liquid pipe 5 through the branch hose 26, so that the filling liquid in the first liquid pipe 5 flows from the branch hose 26 to the second filling needle 22, so that the first filling needle 8 and the second filling needle 22 fill the containers in the conveyor 6. Both ends of the spacing adjustment lifting plate 19 are installed with removable end covers 25 by bolts. The removable end covers 25 block the first slide groove 11. When the removable end covers 25 are removed, it is helpful to remove the second slider seat 20. The external threaded connecting tube 32 is an adapter. When the first filling needle 8 or the second filling needle 22 needs to be replaced, the first filling needle 8 and the second filling needle 22 can be removed under the action of the external threaded connecting tube 32, and it is also helpful to replace filling needles of different specifications. Two supporting columns 2 are symmetrically installed on the top surface of the filling machine 1. The top ends of the two supporting columns 2 are fixedly connected to the bottom surface of the filling liquid tank 3 to support the filling liquid tank 3.

[0035] Example 2 In this embodiment, one of the first connecting hose 9 and the third connecting hose 33 is removed at one end close to the filling valve tube 4, so that the first connecting hose 9 or the third connecting hose 33 is connected to another barrel of different filling liquid in the workshop. By driving the water pump, the filling liquid different from that in the filling liquid tank 3 can also be filled into the required container on the conveyor 6, so that the first filling needle 8 and the second filling needle 22 can perform the filling operation at the same time, so that different liquids can be filled in the containers filled on the conveyor 6.

[0036] How it works The BFS aseptic filling machine device with a filling needle spacing adjustment mechanism places the empty containers to be filled on the conveyor 6 and is ready for automatic transmission. According to the specifications of the container, the positions of the first slider seat 17 and the second slider seat 20 are pre-adjusted to ensure that the spacing between the first filling needle 8 and the second filling needle 22 matches the container. The conveyor 6 starts to operate and the empty containers are sent to the filling area in an orderly manner. When the container passes under the L fixed vertical plate 7, it will gradually approach the first filling needle 8 and the second filling needle 22. When the container reaches the predetermined position, the conveyor will stop temporarily to ensure that each container is accurately aligned under the corresponding filling needle. At this time, the position of the container is accurately controlled by the speed and control system of the conveyor to ensure the accuracy of each filling.

[0037] The hydraulic lifting column 14 starts, driving the lifting plate 12 and the first filling needle 8 thereon to slowly descend. At the same time, the electric lifting column 21 also starts, driving the spacing adjustment lifting plate 19 and the second filling needle 22 thereon to synchronously descend. The first filling needle 8 and the second filling needle 22 are respectively inserted into the opening of the container to ensure that the needles are completely inside the container but do not touch the bottom. At this time, the first magnet block 29 and the second magnet block 31 make the positioning slide block 30 firmly adsorbed in the positioning slide groove 28 to prevent sliding.

[0038] The appropriate filling path is selected by the PLC control system as needed. For example, if the first filling needle 8 is used, the solenoid valve in the first connecting hose 9 is opened to allow the liquid to flow from the filling liquid tank 3 to the first filling needle 8 through the first liquid pipe 5. If the second filling needle 22 is used, the solenoid valve in the third connecting hose 33 is opened to allow the liquid to flow to the second filling needle 22 through the second liquid pipe 15. The liquid flows into the first filling needle 8 and the second filling needle 22 through the filling valve tube 4 and the corresponding first connecting hose 9 and the third connecting hose 33, and is finally injected into the container. The filling volume is precisely controlled by the control system to ensure that each container can obtain the set amount of liquid. The scale line 27 is used to assist the operator in monitoring the position of the filling needle to ensure the correct position required for filling.

[0039] When the liquid filling is completed, the PLC control system closes the corresponding solenoid valve to stop the liquid flow. Then, the hydraulic lifting column 14 and the electric lifting column 21 are started at the same time, driving the first filling needle 8 and the second filling needle 22 to slowly rise and pull them out of the container. After the filling needles are completely out of the container, the lifting plate 12 and the spacing adjustment lifting plate 19 return to their initial positions, ready to welcome the arrival of the next container.

[0040] Conveyor 6 restarts, takes the filled containers away from the filling area, and sends them to the next step such as sealing, labeling, etc. At the same time, new empty containers are sent to the filling area, ready for the next round of filling.

[0041] By adjusting the position of the second slider seat 20 in the second slide groove 16 and fixing it with the locking bolt 24, the distance between the second filling needle 22 and the first filling needle 8 can be flexibly changed to adapt to containers of different specifications. This design greatly improves the versatility and production efficiency of the equipment.

[0042] 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".

[0043] Although embodiments of the 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 invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A BFS aseptic filling machine device with a filling needle spacing adjustment mechanism, comprising a filling machine platform (1), a filling liquid tank (3) being arranged on the top surface of the filling machine platform (1), characterized in that: An inverted L-shaped fixed vertical plate (7) is fixed below one side of the filling liquid box (3) and located on the top surface of the filling machine platform (1); a conveyor (6) is arranged on the side of the L-shaped fixed vertical plate (7) facing away from the filling liquid box (3) and located on the top surface of the filling machine platform (1); and a lifting plate (12) is embedded in the top surface of one end of the L-shaped fixed vertical plate (7) close to the conveyor (6); A first slide groove (11) is transversely provided in the middle of the top surface of the lifting plate (12), a plurality of first slider seats (17) are arranged at equal intervals in the first slide groove (11), and a first filling needle (8) is longitudinally provided on the bottom surface of each first slider seat (17). An inverted U-shaped frame rod (10) is welded above the lifting plate (12) and located on the top surface of the L-fixed vertical plate (7), and a spacing adjustment lifting plate (19) is provided inside the U-shaped frame rod (10) for lifting. A second slide groove (16) is transversely provided inside the spacing adjustment lifting plate (19), a plurality of second slider seats (20) are arranged at equal intervals in the second slide groove (16), and a second filling needle (22) is longitudinally provided on the bottom surface of each second slider seat (20), and when the spacing adjustment lifting plate (19) descends, each second filling needle (22) is inserted between two adjacent first slider seats (17).

2. A BFS aseptic filling machine device with a filling needle spacing adjustment mechanism according to claim 1, characterized in that: The top surface of the L-fixed vertical plate (7) is provided with a rectangular opening for the lifting plate (12) to fit in, and an inverted L-hanging plate (13) is welded to one side of the lifting plate (12) and located on the top surface of the L-fixed vertical plate (7).

3. A BFS aseptic filling machine device with a filling needle spacing adjustment mechanism according to claim 2, characterized in that: A hydraulic lifting column (14) is fixedly mounted on the inner top wall of the L-shaped lifting plate (13) by means of bolts, and the bottom lifting end of the hydraulic lifting column (14) is fixedly connected to the top surface of the lifting plate (12) by means of bolts.

4. A BFS aseptic filling machine device with a filling needle spacing adjustment mechanism according to claim 3, characterized in that: An electric lifting column (21) is fixed at the middle position of the inner top wall of the U-shaped frame rod (10), and the bottom free end of the electric lifting column (21) is fixedly connected to the middle position of the top surface of the spacing adjustment lifting plate (19).

5. The BFS aseptic filling machine device with a filling needle spacing adjustment mechanism according to claim 4 is characterized in that: A plurality of spacing screw holes (23) are equidistantly formed on an outer wall of one side of the spacing adjustment lifting plate (19), a locking bolt (24) is threadedly connected in the spacing screw hole (23), and a screw end of the locking bolt (24) is threadedly fixed to the second slider seat (20) in the first sliding groove (11).

6. A BFS aseptic filling machine device with a filling needle spacing adjustment mechanism according to claim 5, characterized in that: The inner walls on both sides of the second slide groove (16) are provided with positioning slide grooves (28), and the outer walls on both sides of each of the first slider seats (17) are provided with positioning sliders (30) slidably connected in the positioning slide grooves (28), and each of the positioning sliders (30) is firmly connected to the positioning slide groove (28) through a magnetic attraction component.

7. A BFS aseptic filling machine device with a filling needle spacing adjustment mechanism according to claim 6, characterized in that: The magnetic attraction component comprises a first magnet block (29) respectively bonded to the inner walls of the two positioning slide grooves (28) and a second magnet block (31) bonded to the outer wall of each positioning slide block (30).

8. The BFS aseptic filling machine device with a filling needle spacing adjustment mechanism according to claim 7, characterized in that: The top surfaces of one side of the spacing adjustment lifting plate (19) and the second slide groove (16) are both provided with scale lines (27), so that each of the first sliding block seats (17) is arranged at an equal distance in the second slide groove (16) and each of the second sliding block seats (20) is arranged at an equal distance in the first slide groove (11).

9. A BFS aseptic filling machine device with a filling needle spacing adjustment mechanism according to claim 8, characterized in that: The bottom surface of the filling liquid box (3) is provided with a filling valve tube (4), the top surface of the U-shaped frame rod (10) is fixedly mounted with a first liquid tube (5), and one side of the U-shaped frame rod (10) and located on the top surface of the L-fixed vertical plate (7) is fixedly mounted with a second liquid tube (15).

10. A BFS aseptic filling machine device with a filling needle spacing adjustment mechanism according to claim 9, characterized in that: A connecting tube is longitudinally penetrated inside the first slider seat (17) and the second slider seat (20), and an externally threaded connecting tube (32) is integrally formed at the bottom end of the connecting tube. The externally threaded connecting tube (32) is threadedly connected to the first filling needle (8) and the second filling needle (22).