Device for injecting fluid into container

Abstract

The invention discloses a device for injecting fluid into a container. The device comprises a rotatable conveyor and a fluid distributor. The conveyor is provided with a plurality of supporting pieces, a plurality of nozzles and a plurality of fluid conveying channels, the nozzles face the corresponding supporting pieces, each fluid conveying channel is provided with an inlet and an outlet, and the outlets are connected with the nozzles; the fluid distributor is fixed when the conveyor rotates and guides fluid into the inlets, the fluid distributor comprises a distribution part, the distribution part is provided with a pipeline, and the pipeline is provided with a pipeline outlet; the conveyor and the distribution part are adjacently arranged up and down, the conveyor is provided with a first end face, the distribution part is provided with a second end face, the first end face and the second end face are adjacently arranged, the first end face is located below the second end face, and an end face gap is formed between the first end face and the second end face; the inlets are located in the first end face, the pipeline outlet is located in the second end face, the conveyor can rotate till the inlets correspond to the pipeline outlet, and when the inlets correspond to the pipeline outlet, in the projection in the downward direction, the projection of the pipeline outlet is located in the projection of the inlets.

Description

Technical Field

[0001] This invention relates to the field of fluid transport technology, and more specifically to an apparatus for injecting fluid into a container. Background Technology

[0002] In the packaging bottle manufacturing process, preforms are first injection molded using an injection molding machine, and then blow molded into shape using a blow molding machine. During the production of packaging bottles, disinfectant needs to be injected into the preforms or formed packaging bottles for disinfection treatment to meet subsequent production requirements.

[0003] To address this issue, patent document ZL2007100890677 discloses a device for injecting fluid into a moving container. This device includes a rotatably mounted conveyor and a fixedly mounted distributor. The conveyor includes multiple supports for the container, multiple nozzles for injecting fluid into the container, and conveying tracks connected to the nozzles. The distributor includes a distribution member with a manifold through which fluid is directed into the inlets of each conveying track. A seal is provided between the manifold and the conveying tracks to ensure a sealed contact.

[0004] In this structure, the inner surface of the distribution component is radially fitted with the conveying track, so that the inlet of the pipe is located on the outer periphery of the disc conveyor belt. The fluid flow direction inside the pipe is perpendicular to the fluid flow direction inside the nozzle. As a result, when the high-speed fluid enters the nozzle from the pipe, the high-speed fluid will first turn at the wall surface where the end of the pipe is located. In this way, some fluid will flow in the opposite direction. Therefore, it is necessary to install a seal between the manifold and the conveying track to prevent the leakage of the reverse-flowing fluid.

[0005] Meanwhile, in this structure, to ensure the sealing effect, the seal is squeezed between the manifold and the conveyor track, which is set on the disc conveyor belt. When the disc conveyor belt rotates, friction will occur between the seal and the disc conveyor belt. This friction causes the seal to wear. Since the disc conveyor belt rotates at a relatively high speed, the wear of the seal is aggravated, so the seal needs to be replaced in a short period of time. Frequent replacement of the seal leads to frequent downtime, resulting in low production efficiency and continuous spare parts procurement costs.

[0006] Furthermore, in this structure, the inner surface of the distribution component radially mates with the conveyor track. To ensure a good seal, the coaxiality between the disc conveyor belt and the distribution component is critical. However, the large size of the disc conveyor belt increases the manufacturing difficulty and thus raises processing costs. If the coaxiality deviation is significant, the eccentric rotation of the disc conveyor belt will generate periodic centrifugal force, causing severe vibration and loud noise, seriously affecting operational stability and environmental comfort. Moreover, it will cause uneven wear on the seals, further accelerating their wear and shortening their service life. Summary of the Invention

[0007] The purpose of this invention is to overcome one or more disadvantages in the prior art and provide a device for injecting fluid into a container that has a simple processing technology and does not require frequent replacement of seals.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An apparatus for injecting fluid into a container includes a conveyor and a fluid distributor that are rotatably disposed about a centerline A extending perpendicular to a horizontal plane. The conveyor has: Multiple support members distributed along the circumferential direction of the conveyor's rotation and used to support the container; Multiple nozzles for injecting fluid into the container, each nozzle being positioned toward a corresponding support member; Multiple fluid delivery channels are distributed along the circumferential direction of the conveyor's rotation. Each fluid delivery channel has an inlet and an outlet, and the outlet is connected to the nozzle in a one-to-one correspondence. The fluid distributor is configured to be relatively fixed when the conveyor rotates and is capable of introducing fluid into each of the inlets, the fluid distributor comprising: A distributor is disposed toward the fluid delivery channel, the distributor having a conduit that can communicate with each of the inlets when the conveyor rotates relative to the distributor, the conduit having a conduit inlet and a conduit outlet; A supply mechanism connected to the pipe inlet for supplying fluid into the pipe; The conveyor and the distributor are arranged vertically adjacent to each other. The conveyor has a first end face, and the distributor has a second end face. The first end face and the second end face are arranged adjacent to each other, and the first end face is located below the second end face. There is an end face gap L between the first end face and the second end face. The inlet is located on the first end face, the pipe outlet is located on the second end face, and the conveyor can rotate around the axis A until each of the inlets corresponds to the pipe outlet. When the inlet corresponds to the pipe outlet, the projection of the pipe outlet is located within the projection of the inlet in the downward direction.

[0009] In some embodiments, the fluid delivery channel is a straight channel, and the fluid delivery channel is coaxially arranged with the nozzle.

[0010] In some embodiments, the fluid delivery channel is arranged parallel to the centerline A.

[0011] In some embodiments, the end face gap L is 0.01 mm to 0.5 mm.

[0012] In some embodiments, the end face gap L is 0.02 mm to 0.2 mm.

[0013] In some embodiments, the first end face and the second end face are planes perpendicular to the axis A.

[0014] In some embodiments, the fluid delivery channel is perpendicular to the first end face.

[0015] In some embodiments, the conveyor further includes a support plate and a filling plate, the support plate and the filling plate being arranged to rotate synchronously about the axis A, the support plate being located below the filling plate, a plurality of nozzles being spaced apart along the circumferential direction of the filling plate at the lower part of the filling plate, and a plurality of support members being spaced apart along the circumferential direction of the support plate on the support plate.

[0016] In some embodiments, the dispensing member includes a body and a protective member disposed on the body. The protective member is located at one end of the body facing the dispensing disc. The material hardness of the protective member is less than that of the body. The first end face is the end face of the dispensing disc facing the dispensing member, and the second end face is the end face of the protective member facing the dispensing disc.

[0017] In some embodiments, the dispensing component and the supply mechanism are connected to each other and are slidably arranged synchronously along the extension direction of the axis A. The fluid dispenser further includes a drive mechanism for driving the dispensing component and the supply mechanism to slide synchronously along the axis A, the drive mechanism being connected to the dispensing component. Both the dispensing component and the supply mechanism have a first position and a second position. When the dispensing component and the supply mechanism are in the first position, there is an end face gap L between the first end face and the second end face. When the dispensing component and the supply mechanism are in the second position, the distance between the first end face and the second end face is greater than the end face gap L.

[0018] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: In the fluid injection device provided by the present invention, the conveyor and the distributor are arranged adjacent to each other vertically. Overcoming the bias of the prior art, no sealing element is set between the two adjacent end faces of the conveyor and the distributor. Instead, an end face gap is set between these two end faces. When the device is working, the fluid distributor sprays high-speed fluid. When the high-speed fluid flows, it absorbs the surrounding static fluid and moves together. This process creates a negative pressure in the end face gap area around the high-speed fluid, so that the fluid will not leak from the end face gap. Therefore, even without a sealing element, a good sealing effect can be maintained, and the problem of frequent replacement of worn seals can be avoided. Moreover, when the conveyor rotates to the position where the inlet corresponds to the pipe outlet, the projection of the pipe outlet is located within the projection of the inlet in the downward direction. This avoids the problem of high-speed fluid impacting the first end face around the inlet and turning, thus preventing leakage from the end face gap when the high-speed fluid flows from the pipe outlet into the inlet. In addition, since the conveyor and the distributor are arranged adjacent to each other and there is no radial fit between them, the processing difficulty of the conveyor and the distributor is reduced, thereby reducing the processing cost. Attached Figure Description

[0019] Figure 1 This is a cross-sectional schematic diagram of the apparatus for injecting fluid into a container according to this embodiment; Figure 2 This is a top view schematic diagram of the apparatus for injecting fluid into a container according to this embodiment; Figure 3 yes Figure 1 A magnified view of a portion of section I.

[0020] The components are as follows: 1. Base; 2. Conveyor; 21. Column; 22. Support plate; 23. Filling plate; 231. First end face; 24. Support component; 25. Nozzle; 26. Fluid conveying channel; 261. Inlet; 262. Outlet; 27. Heating component; 28. Insulation layer; 3. Fluid distributor; 31. Distributor component; 311. Body; 312. Protective component; 3121. Second end face; 32. Pipeline; 321. Internal pipeline; 3211. Pipeline outlet; 322. Manifold; 3221. Pipeline inlet; 33. Supply mechanism; 34. Drive mechanism; 341. Cylinder; 342. Piston rod; 343. Position transmitter; 4. Container. Detailed Implementation

[0021] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the embodiments of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0023] In the description of the embodiments of the present invention, it should be understood that the terms "length", "inner", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0026] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] The following disclosure provides many different implementations or examples for carrying out different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0028] like Figure 1 and Figure 2 As shown, the device for injecting fluid into a container in this embodiment includes a base 1, a conveyor 2, and a fluid distributor 3, both of which are mounted on the base 1.

[0029] The conveyor 2 is rotatably mounted on the base 1 about the axis A, which in this embodiment is perpendicular to the horizontal plane.

[0030] like Figure 1 As shown, the conveyor 2 includes a column 21 extending in the vertical direction, and the column 21 is rotatably mounted on the base 1 about the axis A.

[0031] The upper part of the column 21 is provided with a support plate 22 and a filling plate 23, which are arranged sequentially along the extension direction of the axis A and are arranged to rotate synchronously around the axis A. In this embodiment, the support plate 22 is located below the filling plate 23.

[0032] The support plate 22 is provided with multiple support members 24, each support member 24 is used to support a container 4, which can be a preform or a formed packaging bottle. The multiple support members 24 are arranged at intervals on the support plate 22 along the circumferential direction.

[0033] The filling plate 23 is provided with multiple nozzles 25, through which fluid is injected into the container 4. The multiple nozzles 25 are arranged at intervals along the circumferential direction of the filling plate 23, and the nozzles 25 are correspondingly arranged with the support members 24. Each nozzle 25 is located on the side of the filling plate 23 facing the support plate 22, that is, each nozzle 25 is installed on the lower part of the filling plate 23, thus facing the corresponding support member 24.

[0034] The filling plate 23 is also provided with multiple fluid delivery channels 26, which are spaced apart along the circumferential direction of the filling plate 23. Each fluid delivery channel 26 is corresponding to a nozzle 25. Each fluid delivery channel 26 has an inlet 261 and an outlet 262, and the outlet 262 is connected to a nozzle 25.

[0035] A heating element 27 is also fixedly installed on the filling plate 23, which can heat the filling plate 23 to maintain a set temperature. In this embodiment, the set temperature is 130°C.

[0036] A heat insulation layer 28 is also provided between the support 24 and the filling plate 23 to prevent the heat generated by the heating element 27 from affecting the container 4.

[0037] When the device is in operation, as the conveyor 2 rotates relative to the base 1 around the axis A, the fluid distributor 3 is fixed relative to the base 1. The fluid distributor 3 is used to introduce high-speed fluid into each of the above-mentioned inlets 261, so that the fluid is injected into the container 4 by the nozzle 25.

[0038] The fluid distributor 3 includes a distributor 31, which is positioned facing the fluid delivery channel 26. The distributor 31 has a pipe 32. When the conveyor 2 rotates relative to the base 1 about its axis A, the pipe 32 can communicate with each inlet 261, thereby guiding fluid into each inlet 261 through the pipe 32. The pipe 32 has a pipe inlet 3221 and a pipe outlet 3211. The conveyor 2 can rotate about its axis A until each inlet 261 corresponds to the pipe outlet 3211. When the inlet 261 corresponds to the pipe outlet 3211, the inlet 261 is connected to the pipe outlet 3211, and the high-speed fluid flows out of the pipe 32 from the pipe outlet 3211 and then flows into the fluid delivery channel 26 from the inlet 261.

[0039] In this embodiment, the pipe 32 includes an internal pipe 321 disposed inside the distribution member 31 and a manifold 322 connected to the distribution member 31 and communicating with the internal pipe 321. The pipe outlet 3211 is disposed at one end of the internal pipe 321 away from the manifold 322, and the pipe inlet 3221 is disposed at one end of the manifold 322 away from the internal pipe 321.

[0040] The fluid distributor 3 also includes a supply mechanism 33, which is connected to the manifold 322 and to the pipe inlet 3221 to introduce a high-pressure gaseous mixture of air and disinfectant at a set temperature and in a set ratio into the manifold 322, thereby disinfecting the surface of the container 4. The disinfectant can be H2O2, and the set temperature here is also 130°C, the same temperature as the heating temperature of the filling pan 23. That is, the fluid introduced into the manifold 322 by the supply mechanism 33 is dry H2O2 vapor.

[0041] like Figure 1 and Figure 3As shown, the conveyor 2 and the distributor 31 are arranged adjacent to each other vertically. The conveyor 2 has a first end face 231, and the distributor 31 has a second end face 3121. The first end face 231 and the second end face 3121 are arranged adjacent to each other, with the first end face 231 located below the second end face 3121. The inlet 261 is located on the first end face 231, and the pipe outlet 3211 is located on the second end face 3121. In this device, no seal is provided between the first end face 231 and the second end face 3121. Instead, an end face gap L is provided between the first end face 231 and the second end face 3121. The end face gap L is relatively small. When the device is working, the fluid distributor 3 sprays high-speed fluid. As the high-speed fluid flows, it absorbs the surrounding static fluid and moves together. This process creates a negative pressure in the area of ​​the end face gap L around the high-speed fluid, thus preventing fluid leakage from the end face gap L. Therefore, even without a seal, a good sealing effect can be maintained, and the problem of frequent seal replacement due to seal wear can be avoided.

[0042] Furthermore, when the inlet 261 corresponds to the pipe outlet 3211, the projection of the pipe outlet 3211 lies within the projection of the inlet 261 in the downward direction. Preferably, the cross-sectional area at the pipe outlet 3211 is slightly smaller than the cross-sectional area at the inlet 261. This avoids the problem of high-speed fluid flowing from the pipe outlet 3211 into the inlet 261 and causing it to deflect due to impact with the first end face 231 around the inlet 261, thus preventing fluid leakage from the end face gap L.

[0043] Meanwhile, since the conveyor 2 and the distributor 31 are arranged adjacent to each other vertically, and there is no radial fit between the conveyor 2 and the distributor 31, the processing difficulty of the conveyor 2 and the distributor 31 is reduced, thereby reducing the processing cost.

[0044] Preferably, the end face gap L is 0.01mm to 0.5mm. Within this range, the performance requirements of sealing and wear can be well balanced.

[0045] More preferably, the end face gap L is 0.02 mm to 0.2 mm. Within this range, it exhibits optimal sealing and wear resistance performance.

[0046] The first end face 231 and the second end face 3121 are planes perpendicular to the axis A, and the fluid transport channel 26 is perpendicular to the first end face 231, that is, the flow direction of the high-speed fluid in the fluid transport channel 26 is perpendicular to the main flow direction of the fluid in the end face gap L. This can further prevent fluid leakage from the end face gap L.

[0047] Furthermore, in this device, the fluid delivery channel 26 is a straight channel, and the fluid delivery channel 26 and the nozzle 25 are coaxially arranged along the axis B. That is, the flow direction of the high-speed fluid in the fluid delivery channel 26 is the same as the main flow direction of the fluid inside the nozzle 25. This makes the transition of the high-speed fluid from the fluid delivery channel 26 to the nozzle 25 smooth and minimizes flow separation and momentum loss. It also avoids the problem of high-speed fluid changing direction due to wall obstruction, thus preventing leakage along the end face gap L.

[0048] In this embodiment, both the fluid delivery channel 26 and the internal pipe 321 are arranged parallel to the axis A.

[0049] like Figure 1 As shown, the dispensing component 31 includes a body 311 and a protective component 312 disposed on the body 311. The protective component 312 is located at one end of the body 311 facing the filling plate 23. The material hardness of the protective component 312 is less than that of the body 311. Part of the internal pipe 321 is disposed inside the body 311, and the internal pipe 321 also penetrates the protective component 312. The first end face 231 is the end face of the filling plate 23 facing the dispensing component 31, and the second end face 3121 is the end face of the protective component 312 facing the filling plate 23. With the dispensing component 31 configured in this way, when the disinfectant, such as H2O2, contains impurities, these impurities may deposit in the end face gap L. When the conveyor 2 rotates around the axis A, the impurities can prevent wear on the body 311. When the protective component 312 wears out, a new protective component 312 can be replaced to ensure that the end face gap L is always within the set range, thereby ensuring the stable operation of the device.

[0050] The dispensing component 31 and the supply mechanism 33 are connected to each other and can also be slidably arranged synchronously along the extension direction of the axis A. The dispensing component 31 and the supply mechanism 33 have a first position and a second position relative to the base 1. When it is necessary to disinfect the surface of the container 4, the dispensing component 31 and the supply mechanism 33 are in the first position, and there is an end face gap L between the first end face 231 and the second end face 3121. Figure 1 As shown. When there is no need to disinfect the surface of container 4, the dispensing component 31 and the supply mechanism 33 are in the second position, and the distance between the first end face 231 and the second end face 3121 is much larger than the end face gap L.

[0051] The fluid distributor 3 also includes a drive mechanism 34, which drives the distributor 31 and the supply mechanism 33 to slide synchronously along the axis A. The drive mechanism 34 is connected to the distributor 31.

[0052] In this embodiment, such as Figure 1As shown, the drive mechanism 34 is a cylinder, which includes a cylinder body 341 fixedly disposed relative to the base 1 and a piston rod 342 slidably disposed on the cylinder body 341. The end of the piston rod 342 extending out of the cylinder body 341 is connected to the distribution component 31. The piston rod 342 slides relative to the cylinder body 341 along the extension direction of the axis A. When the piston rod 342 slides relative to the cylinder body 341, it drives the distribution component 31 and the supply mechanism 33 to slide synchronously in the same direction. Of course, the drive mechanism 34 is not limited to a cylinder and can also use a linear motor, etc.

[0053] The drive mechanism 34 may also include a position transmitter 343 mounted on the cylinder, which detects the linear displacement or position information of the piston rod 342 in real time so that the distributor 31 and the supply mechanism 33 are in a first position or a second position.

[0054] The working principle of this device is as follows: When the device is working, the motor (not shown) drives the column 21 to rotate around the axis A, so that the support plate 22 and the filling plate 23 rotate synchronously around the axis A. At the same time, the heating element 27 makes the temperature of the filling plate 23 reach and maintain 130°C.

[0055] The containers 4 are transported one by one to each support member 24.

[0056] The supply mechanism 33 supplies a gaseous mixture of air and H2O2 at a predetermined ratio and at a temperature of 130°C.

[0057] As container 4 rotates together with conveyor 2 around axis A, each time it rotates to an inlet 261 facing the internal pipe 321, fluid distributor 3 sprays out one or more metered high-speed fluids. The fluid flows through fluid delivery channel 26 and is then sprayed into container 4 from the corresponding nozzle 25. Conveyor 2 continues to rotate, spraying fluid into all containers 4 to sterilize all containers 4 through a gaseous mixture.

[0058] When the conveyor 2 rotates around the axis A, the positions of the support plate 22 and the filling plate 23 are strictly synchronized with the high-speed fluid in the form of pulses injected by the fluid distributor 3, ensuring that at each precise moment when the fluid distributor 3 rotates to an inlet 261 facing the internal pipe 321, the fluid distributor 3 ejects one or more quantitative high-speed fluids to complete the fixed-point injection.

[0059] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An apparatus for injecting fluid into a container, comprising a conveyor (2) and a fluid distributor (3) rotatably disposed about a centerline A extending perpendicular to a horizontal plane. The conveyor (2) has: Multiple support members (24) are distributed in the circumferential direction along the rotation of the conveyor (2) and are used to support the container (4). Multiple nozzles (25) for injecting fluid into the container (4), each nozzle (25) being positioned toward a corresponding support (24); Multiple fluid delivery channels (26) are distributed in the circumferential direction along the rotation of the conveyor (2), each fluid delivery channel (26) having an inlet (261) and an outlet (262), the outlet (262) being connected to the nozzle (25) in a one-to-one correspondence; The fluid distributor (3) is configured to be relatively fixed when the conveyor (2) rotates and is capable of introducing fluid into each of the inlets (261). The fluid distributor (3) includes: A distribution member (31) is provided toward the fluid delivery channel (26), the distribution member (31) having a pipe (32) that can communicate with each of the inlets (261) when the conveyor (2) rotates relative to the distribution member (31), the pipe (32) having a pipe inlet (3221) and a pipe outlet (3211). A supply mechanism (33) connected to the pipe inlet (3221) for supplying fluid into the pipe (32); The features are as follows: the conveyor (2) and the distributor (31) are arranged adjacent to each other vertically, the conveyor (2) has a first end face (231), the distributor (31) has a second end face (3121), the first end face (231) and the second end face (3121) are arranged adjacent to each other, and the first end face (231) is located below the second end face (3121), and there is an end face gap L between the first end face (231) and the second end face (3121); The inlet (261) is located on the first end face (231), and the pipe outlet (3211) is located on the second end face (3121). The conveyor (2) can rotate around the axis A until each of the inlets (261) corresponds to the pipe outlet (3211). When the inlet (261) corresponds to the pipe outlet (3211), the projection of the pipe outlet (3211) is located within the projection of the inlet (261) in the downward direction.

2. The apparatus for injecting fluid into a container according to claim 1, characterized in that: The fluid delivery channel (26) is a straight channel, and the fluid delivery channel (26) is coaxially arranged with the nozzle (25).

3. The apparatus for injecting fluid into a container according to claim 2, characterized in that: The fluid transport channel (26) is arranged parallel to the axis A.

4. The apparatus for injecting fluid into a container according to claim 1, characterized in that: The end face gap L is 0.01mm to 0.5mm.

5. The apparatus for injecting fluid into a container according to claim 4, characterized in that: The end face gap L is 0.02mm to 0.2mm.

6. The apparatus for injecting fluid into a container according to claim 1, characterized in that: The first end face (231) and the second end face (3121) are planes perpendicular to the axis A.

7. The apparatus for injecting fluid into a container according to claim 6, characterized in that: The fluid delivery channel (26) is perpendicular to the first end face (231).

8. The apparatus for injecting fluid into a container according to any one of claims 1 to 7, characterized in that: The conveyor (2) also has a support plate (22) and a filling plate (23). The support plate (22) and the filling plate (23) are arranged to rotate synchronously around the axis A. The support plate (22) is located below the filling plate (23). A plurality of nozzles (25) are arranged at intervals along the circumferential direction of the filling plate (23) at the lower part of the filling plate (23). A plurality of support members (24) are arranged at intervals along the circumferential direction of the support plate (22) on the support plate (22).

9. The apparatus for injecting fluid into a container according to claim 8, characterized in that: The dispensing component (31) includes a body (311) and a protective component (312) disposed on the body (311). The protective component (312) is located at one end of the body (311) facing the filling plate (23). The material hardness of the protective component (312) is less than that of the body (311). The first end face (231) is the end face of the filling plate (23) facing the dispensing component (31), and the second end face (3121) is the end face of the protective component (312) facing the filling plate (23).

10. The apparatus for injecting fluid into a container according to any one of claims 1 to 7, characterized in that: The dispensing component (31) and the supply mechanism (33) are connected to each other and can be slidably arranged synchronously along the extension direction of the axis A. The fluid distributor (3) also includes a drive mechanism (34) for driving the dispensing component (31) and the supply mechanism (33) to slide synchronously along the axis A. The drive mechanism (34) is connected to the dispensing component (31). The distributor (31) and the supply mechanism (33) each have a first position and a second position. When the distributor (31) and the supply mechanism (33) are in the first position, there is an end face gap L between the first end face (231) and the second end face (3121). When the distributor (31) and the supply mechanism (33) are in the second position, the distance between the first end face (231) and the second end face (3121) is greater than the end face gap L.

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