A mobile filling system

Abstract

The present application discloses a mobile filling system, which relates to the field of medical equipment technology. The filling system includes: an extrusion die head, the extrusion die head is provided with a through hole, the filling needle is inserted into the through hole, and the filling needle is spaced apart from the inner wall of the through hole; a guide mechanism is provided on the upper side of the extrusion die head, including a guide member and a moving member cooperating with the guide member, the moving member moves along the preset guide direction of the guide member, the moving member is fixedly connected with the filling needle, the preset guide direction is in the same direction as the axial direction of the filling needle, so as to drive the filling needle to move axially in the through hole; a power member, including a power end connected to the moving member or / and the filling needle, the power end is used to provide power for the filling needle to move. The present application drives the filling needle to move quickly and complete the filling through an external guide mechanism, avoids friction between the filling needle and the inner wall of the through hole in the extrusion die head, and solves the problem of insoluble particles generated by friction.

Description

Technical Field

[0001] The present application relates to the technical field of medical equipment, and in particular to a mobile filling system. Background Art

[0002] Filling needles are widely used in many fields, mainly including biopharmaceuticals, food, chemicals and medical industries.

[0003] At present, the mobile filling technology on the market is to set guide sleeves on the upper and lower sides of the extrusion die head. The filling needle moves under the guidance of the guide sleeve. However, due to the long-term up and down movement of the filling needle in the guide sleeve, a large number of insoluble particles are generated. These particles fall into the filled product under the action of gravity or driven by the filling needle, causing the insoluble particles of the filled product to exceed the standard and fail to meet the GMP (Good Manufacturing Practice) requirements.

[0004] Therefore, in view of the above technical problems, how to avoid the generation of insoluble particles is a technical problem that those skilled in the art need to solve. Summary of the invention

[0005] The purpose of the present application is to provide a mobile filling system, which drives the filling needle to move quickly and complete the filling through an external guide mechanism, thereby avoiding friction between the filling needle and the inner wall of the through hole in the extrusion die head, and solving the problem of insoluble particles generated by friction.

[0006] To achieve the above objectives, the present application provides a mobile filling system, comprising:

[0007] An extrusion die head, wherein the extrusion die head is provided with a through hole, a filling needle is inserted into the through hole, and the filling needle is spaced apart from an inner wall of the through hole;

[0008] A guide mechanism is provided on the upper side of the extrusion die head, comprising a guide member and a moving member cooperating with the guide member, wherein the moving member moves along a preset guide direction of the guide member, and the moving member is fixedly connected with a filling needle, wherein the preset guide direction is in the same direction as the axial direction of the filling needle, so as to drive the filling needle to move axially in the through hole;

[0009] The power member comprises a power end connected to the moving member and / or the filling needle, and the power end is used to provide power for the filling needle to move.

[0010] Preferably, the guide mechanism further comprises a lower seat fixed on the extrusion die head and an upper seat located above the lower seat, a plurality of groups of guide members are arranged between the upper seat and the lower seat, and the preset guiding directions of the plurality of groups of guide members are consistent.

[0011] Preferably, the moving member cooperates with a plurality of groups of the guiding members, and the moving member is connected with a clamping mechanism, and the clamping mechanism is used to clamp the filling needle.

[0012] Preferably, the clamping mechanism comprises:

[0013] A card base, wherein a plurality of clamping channels are provided on the card base, the filling needles correspond to the clamping channels one by one and penetrate the clamping channels, and a notch communicating with the clamping channels is provided on the side of the card base;

[0014] A clamping plate is arranged in the notch and fixedly connected to the clamping seat. A clamping groove is arranged at one end of the clamping plate facing the clamping channel. The clamping groove matches the outer contour of the filling needle and presses the filling needle into the clamping channel.

[0015] Preferably, the plurality of clamping channels are distributed on the holder at a preset interval, and a plurality of penetrating wind curtain channels are provided around the distribution path of the plurality of clamping channels. The wind curtain channels are in the same direction as the clamping channels, and the wind curtain channels are externally connected to sterile air, so that a sterile wind curtain is formed from top to bottom around the plurality of filling needles, and the sterile wind curtain covers at least the area between the clamping mechanism and the extrusion die head from top to bottom.

[0016] Preferably, the extrusion die head comprises a body and an extrusion mandrel arranged on the body, the through holes are arranged on the extrusion mandrel, and the number of the through holes is consistent with and one-to-one corresponds to the number of the clamping channels or the filling needles.

[0017] Preferably, a sterile gas channel communicating with each of the through holes is provided on the extrusion core shaft, and the sterile gas channel is externally connected to sterile gas so as to introduce sterile gas into the annular space between the outer wall of the filling needle and the inner wall of the through hole.

[0018] Preferably, a reserved space is reserved between the lower seats to expose the extrusion core shaft, the clamping mechanism is in contact with the extrusion core shaft through the reserved space, and a first sealing ring is provided on the extrusion core shaft to seal and abut against the clamping mechanism, and the first sealing ring is located on the outer periphery of the plurality of filling needles so that the plurality of filling needles form a sealed space isolated from the outside.

[0019] Preferably, a sterilization box can be arranged on the lower side of the extrusion die and at a position corresponding to the through hole, and the sterilization box is provided with a sterilization hole connected with the through hole so that the filling needle can extend into the sterilization hole, and a second sealing ring is provided on the upper part of the sterilization box for sealingly abutting the extrusion die, and a hydrophobic hole is provided on the lower part of the sterilization box.

[0020] Preferably, the power end of the power member performs linear motion, and the power member is one of a power cylinder with a piston mechanism, a linear motor, and a motor with a transmission mechanism.

[0021] Compared with the above-mentioned background technology, the present application arranges the guide mechanism on the outside of the extrusion die head, replacing the existing built-in guide sleeve structure, so that the filling needle is driven to move in a predetermined direction through the guide mechanism; at the same time, the filling needle is inserted into the through hole, and the filling needle and the inner wall of the through hole are spaced apart. On the basis of the guide mechanism driving the filling needle to move axially, it can avoid the filling needle directly contacting and rubbing with the inner wall of the through hole to generate a large amount of particles falling into the filled product, causing the risk of exceeding the standard of insoluble particles in the filled product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0023] FIG1 is a schematic diagram of the front structure of a mobile filling system provided in an embodiment of the present application;

[0024] FIG2 is a schematic diagram of the side structure of a mobile filling system provided in an embodiment of the present application;

[0025] FIG3 is an enlarged structural schematic diagram of point A in FIG2;

[0026] FIG4 is an enlarged schematic diagram of the structure at B in FIG2;

[0027] FIG5 is a schematic diagram of the enlarged structure of point C in FIG2;

[0028] FIG6 is a schematic cross-sectional view of the mobile filling system provided in an embodiment of the present application;

[0029] FIG7 is a schematic diagram of the enlarged structure of point D in FIG6;

[0030] FIG8 is a schematic structural diagram of the clamping mechanism provided in an embodiment of the present application when the clamping mechanism is in sealing contact with the extrusion mandrel;

[0031] FIG9 is a top view of a card holder provided in an embodiment of the present application;

[0032] FIG10 is a side view of a card holder provided in an embodiment of the present application;

[0033] FIG11 is an enlarged structural diagram of point E in FIG9 ;

[0034] FIG12 is a side view of a card board provided in an embodiment of the present application;

[0035] FIG. 13 is a top view of the card board provided in an embodiment of the present application.

[0036] In the figure: 1-extrusion die head; 11-body; 12-extrusion mandrel; 13-first sealing ring; 14-annular spacer; 15-sterile gas channel;

[0037] 2- Filling needle;

[0038] 3-guide mechanism; 31-upper seat; 32-moving member; 33-guide member; 34-lower seat; 35-reserved space;

[0039] 4-clamping mechanism; 41-card holder; 411-clamping channel; 412-air curtain channel; 413-notch; 414-distribution channel; 415-inlet; 42-card plate; 421-clamping groove;

[0040] 5-Power parts;

[0041] 6- sterilization box; 61- sterilization hole; 62- hydrophobic hole. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] It should be noted that in this embodiment, the directions or positional relationships indicated by "upper", "lower", "front", "back", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0045] As shown in FIG. 1 and FIG. 2 , in this embodiment, a mobile filling system is provided, which includes an extrusion die 1, a guide mechanism 3 and a power member 5. The extrusion die 1 is provided with a through hole, and a filling needle 2 is inserted into the through hole and moves up and down in the through hole according to actual needs.

[0046] The up and down movement of the filling needle 2 in the through hole is realized by the guide mechanism 3 and the power member 5. Specifically, the guide mechanism 3 is located outside the extrusion die 1 and can be arranged on the upper side of the extrusion die 1, thereby replacing the traditional guide sleeve structure; the guide mechanism 3 includes a guide member 33 and a moving member 32 cooperating with the guide member 33. Please refer to Figures 2 and 6. The guide member 33 has a certain guiding function and can limit the moving member 32 to move along the preset guiding direction of the guide member 33; for example, the guide member 33 can be a guide column, and the corresponding moving member 32 is a guide sleeve, which is arranged on the outer periphery of the guide column, thereby limiting the guide sleeve to move linearly along the guide column; for another example, the guide member 33 is a slide rail, and the corresponding moving member 32 is a slider, then the slider can move along the guiding direction of the slide rail; here, no more restrictions are made on the guide mechanism 3, and it is sufficient to ensure that it can play a guiding role.

[0047] It should be pointed out that in this embodiment, the filling needle 2 should be spaced apart from the inner wall of the through hole to avoid contact friction between the two; at the same time, the filling needle 2 of the present application should move along its axial direction, and the corresponding through hole should be coaxially arranged with the filling needle 2, so that under the premise that the two do not contact, the filling needle 2 continues to move along the axial direction and still will not contact the inner wall of the through hole, and no insoluble particles will be generated.

[0048] On this basis, the moving direction of the moving member 32 in the guide mechanism 3 should be in the same direction as the axial direction of the filling needle 2, so as to ensure that the filling needle 2 is always spaced apart from the inner wall of the through hole during the movement.

[0049] Of course, for the guide mechanism 3 , on the basis of playing a guiding role, the moving member 32 should be able to perform linear motion under the limiting effect of the guide member 33 , and the direction of the linear motion is consistent with the axial direction of the filling needle 2 .

[0050] In addition, the guide mechanism 3 only has a guiding function, so a power member 5 is also required as its power source to drive the filling needle 2 to move. Specifically, the power member 5 includes a power end connected to the moving member 32 and / or the filling needle 2, and the power end can provide the filling needle 2 with power for movement.

[0051] Furthermore, the power end of the power piece 5 should make linear motion, and the direction of the linear motion is consistent with the axial direction of the filling needle 2. Specifically, the power piece 5 can be one of a power cylinder with a piston mechanism, a linear motor, and a motor with a transmission mechanism. For example, the power piece 5 is a power cylinder with a piston mechanism such as a hydraulic cylinder, a cylinder, an electric cylinder, etc. Of course, under certain conditions, it also includes components such as internal combustion engines, external combustion engines, etc. that realize driving operations by pushing the piston movement, all of which fall within the protection scope of this application. For another example, a linear motor can directly convert rotational motion into linear motion, thereby driving the filling needle 2 to move. Or an ordinary motor converts rotational motion into linear motion through a transmission mechanism, thereby driving the filling needle 2 to move linearly. In addition, other types of power pieces 5 that can provide power and whose power end moves in linear motion all fall within the protection scope of this application and will not be described in detail here.

[0052] In summary of the above embodiments, the present application arranges the guide mechanism 3 on the outside of the extrusion die 1, replacing the existing built-in guide sleeve structure, so that the filling needle 2 is driven to move in a predetermined direction through the guide mechanism 3; at the same time, the filling needle 2 is inserted into the through hole, and the filling needle 2 is spaced apart from the inner wall of the through hole. On the basis of the guide mechanism 3 driving the filling needle 2 to move axially, it can be avoided that the filling needle 2 directly contacts and rubs with the inner wall of the through hole to generate a large amount of particles falling into the filled product, causing the risk of exceeding the standard of insoluble particles in the filled product.

[0053] In some embodiments, the guide mechanism 3 of the present application also includes a lower seat 34 fixed on the extrusion die head 1 and an upper seat 31 located above the lower seat 34. Please refer to Figures 2 and 6. The lower seat 34 serves as the main load-bearing component, and multiple groups of guide members 33 are evenly distributed between the lower seat 34 and the upper seat 31. At the same time, the multiple groups of guide members 33 serve to connect the lower seat 34 and the upper seat 31, so that the guide mechanism 3 has a stable structure.

[0054] For the present application, multiple guide members 33 should be arranged in a regularly distributed manner; for example, multiple guide members 33 are located at the four corners of the lower seat 34 to form a stable quadrilateral structure, or a triangular stable structure to ensure that the upper seat 31 and the lower seat 34 can be stably connected, and the moving member 32 can move stably on the multiple guide members 33, and no more restrictions are made here.

[0055] It should be pointed out that the preset guiding directions of the multiple groups of guiding members 33 should be consistent, so as to ensure that the various positions of the moving member 32 can move in the same direction, thereby ensuring that the filling needle 2 can stably move along its axial direction.

[0056] Specifically, the number of moving parts 32 and guiding parts 33 should be consistent and can be matched one by one. The moving parts 32 are connected to the clamping mechanism 4, so that the clamping mechanism 4 is driven to move stably under the action of multiple groups of moving parts 32 and multiple groups of guiding parts 33. The clamping mechanism 4 is used to clamp the filling needle 2, so as to drive the filling needle 2 to move stably along its axial direction.

[0057] Referring to FIG. 3 , the clamping mechanism 4 includes a clamping seat 41 and a clamping plate 42. The clamping seat 41 is provided with a plurality of clamping channels 411, and the filling needle 2 can pass through the clamping channels 411 and then extend into the through hole. When there are a plurality of clamping channels 411, the filling needles 2 should be consistent with the number of the clamping channels 411 and be arranged one by one, so as to form a filling needle row on the clamping mechanism 4.

[0058] A notch 413 communicating with the clamping channel 411 is provided on the side of the card seat 41, as shown in FIG10 , and the card plate 42 is disposed in the notch 413, as shown in FIG12 , and a convex block corresponding to the notch 413 is provided on the card plate 42, thereby achieving the matching of the card plate 42 with the card seat 41. When the card plate 42 and the card seat 41 are connected, a sealing ring can be added as a sealing structure of the abutting surfaces of the two, thereby ensuring the sealing of the connection between the two.

[0059] It should be pointed out that the clamping channel 411 is a through hole from top to bottom, but the clamping channel 411 at the position of the notch 413 is not complete, so the clamping plate 42 is needed to complete the clamping channel 411 here. Specifically, a clamping groove 421 is provided at one end of the clamping plate 42 facing the clamping channel 411. Please refer to Figure 13. The clamping groove 421 matches the outer contour of the filling needle 2, so that the filling needle 2 is pressed into the clamping channel 411 and the clamping groove 421 through the fixed connection effect of the clamping plate 42 and the holder 41.

[0060] Please refer to Figure 9. Multiple clamping channels 411 are distributed on the holder 41 according to a preset spacing. The multiple clamping channels 411 can be distributed in a matrix or in a single row. A number of penetrating wind curtain channels 412 are provided around the distribution path of the multiple clamping channels 411. For example, when the multiple clamping channels 411 are distributed along a straight line, the wind curtain channels 412 can be distributed on both sides of the straight line where the multiple clamping channels 411 are located, thereby forming a sterile wind curtain from top to bottom on both sides of all the clamping channels 411, thereby ensuring that the filling needle 2 in the clamping channel 411 can be within the protection range of the sterile wind curtain, and forming effective sterile protection for the exposed filling needle 2. The cross-sectional shape of the wind curtain channel 412 can be circular, rectangular, fan-shaped, etc., and there are no excessive restrictions here. It is sufficient to ensure that a channel for sterile air circulation can be formed, and all fall within the protection scope of this application.

[0061] In addition, the filling needle 2 in the area between the clamping mechanism 4 and the extrusion die 1 is relatively exposed, so the sterile air curtain covers at least the area between the clamping mechanism 4 and the extrusion die 1 from top to bottom to ensure that the exposed filling needle 2 can be repeatedly protected by the sterile air curtain.

[0062] Since the card plate 42 is arranged at the position of the notch 413 of the card seat 41, in order to avoid the card plate 42 blocking the formation of the wind curtain channel 412, a plurality of corresponding wind curtain channels 412 can be set on the card plate 42, please refer to Figure 13, so as to be connected with the wind curtain channel 412 on the card seat 41 to form a complete top-down wind curtain channel 412.

[0063] Please refer to FIG. 11 , an inlet 415 is also provided on the holder 41 , and the inlet 415 is used for externally connecting sterile air. The inlet 415 evenly distributes the sterile air to the multiple wind curtain channels 412 on both sides through the distribution channel 414 , so that the wind curtain channels 412 can evenly discharge air.

[0064] Please refer to Figure 2. The extrusion die head 1 includes a main body 11 and an extrusion core shaft 12 arranged on the main body 11. The through holes are arranged on the extrusion core shaft 12, and the number of the through holes is consistent with the number of the clamping channels 411 or the filling needles 2 and corresponds one to one, so that the filling needle row can move up and down in the through holes at the same time under the drive of the guide mechanism 3, and has stable synchronous movement performance.

[0065] A sterile gas channel 15 connected to each through hole is also provided on the extrusion core shaft 12. Please refer to Figures 6 and 7. The sterile gas channel 15 can be connected to sterile gas externally, so as to introduce sterile gas into the through hole. Specifically, sterile gas is introduced into the annular gap 14 between the outer wall of the filling needle 2 and the inner wall of the through hole, thereby forming sterile protection for the lower part of the filling needle 2.

[0066] It can be seen that the present application adopts at least two aseptic protection methods. One is to form a sterile wind curtain on the outside of the exposed filling needle 2, which can provide sterile protection for the upper part of the filling needle 2; the other is to introduce sterile gas into the annular spacer 14 formed at the lower part of the filling needle 2. The specific setting form of the annular spacer 14 can be referred to Figures 5 and 7, which can provide sterile protection for the lower part of the filling needle 2.

[0067] In some embodiments, a reserved space 35 is reserved between the lower seats 34 to expose the extrusion core shaft 12, please refer to Figures 4 and 8. After the production is completed, the guide mechanism 3 drives the filling needle 2 and the clamping mechanism 4 to move downward, so that the clamping mechanism 4 abuts against the extrusion core shaft 12 at the position of the reserved space 35, and a first sealing ring 13 is provided on the extrusion core shaft 12 for sealingly abutting against the clamping mechanism 4, and the first sealing ring 13 is located on the periphery of the multiple filling needles 2, so that the multiple filling needles 2 form a sealed space isolated from the outside.

[0068] In some embodiments, when the filling needle needs to be sterilized, a sterilization box 6 is usually set at the lower side of the extrusion die 1 and at the position corresponding to the through hole. Please refer to Figure 2. The sterilization box 6 is provided with a sterilization hole 61 connected to the through hole, so that the filling needle 2 can extend into the sterilization hole 61. The upper part of the sterilization box 6 is provided with a second sealing ring that is sealed against the extrusion die 1, and the lower part of the sterilization box 6 is provided with a hydrophobic hole 62. In this way, the annular spacer 14 channel can be sealed as a whole, so that steam is introduced into the channel after the production is completed for SIP (in-line sterilization). Of course, when the sterilization box sterilization operation is not required for normal production and operation of the system, the sterilization box 6 can be removed.

[0069] In general, the present application can drive the filling needle 2 to move up and down in the through hole through the external guiding mechanism 3 and the clamping mechanism 4, and there is enough gap between the through hole and the filling needle 2 to avoid contact friction when the filling needle 2 moves up and down, thereby preventing the generation of insoluble particles; through the sterile wind curtain formed on the periphery of the filling needle 2 and the annular sterile channel formed in the annular spacer 14, the sterile protection of the filling needle 2 is achieved; and the sterile air channel 15 on the extrusion core shaft 12 can effectively heat the sterile air, thereby preventing the cold sterile air from blowing into the hot-melt tube blank to cool down the hot-melt tube blank, causing the risk of leakage due to the loose heat seal.

[0070] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0071] Specific examples are used herein to illustrate the principles and implementation methods of the present application, and the description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A mobile filling system, characterized in that: include: An extrusion die head (1), the extrusion die head (1) being provided with a through hole, a filling needle (2) being inserted into the through hole, and the filling needle (2) being spaced apart from an inner wall of the through hole; A guide mechanism (3) is arranged on the upper side of the extrusion die head (1), comprising a guide member (33) and a moving member (32) cooperating with the guide member (33), wherein the moving member (32) moves along a preset guide direction of the guide member (33), and the moving member (32) is fixedly connected to a filling needle (2), wherein the preset guide direction is in the same direction as the axial direction of the filling needle (2), so as to drive the filling needle (2) to move axially in the through hole; A power member (5), comprising a power end connected to the moving member (32) and / or the filling needle (2), the power end being used to provide power for the filling needle (2) to move; The moving part (32) is connected to a clamping mechanism (4) for clamping the filling needle (2), and the clamping mechanism (4) comprises: A card base (41), wherein a plurality of clamping channels (411) are provided on the card base (41), the filling needles (2) correspond to the clamping channels (411) one by one and penetrate through the clamping channels (411), and a notch (413) communicating with the clamping channels (411) is provided on a side surface of the card base (41); A clamping plate (42) is disposed in the notch (413) and fixedly connected to the clamping seat (41); a clamping groove (421) is provided at one end of the clamping plate (42) facing the clamping channel (411); the clamping groove (421) matches the outer contour of the filling needle (2) and presses the filling needle (2) into the clamping channel (411).

2. The mobile filling system according to claim 1, characterized in that: The guide mechanism (3) further comprises a lower seat (34) fixedly mounted on the extrusion die head (1) and an upper seat (31) located above the lower seat (34); a plurality of groups of guide members (33) are arranged between the upper seat (31) and the lower seat (34); and the preset guiding directions of the plurality of groups of guide members (33) are consistent.

3. The mobile filling system according to claim 2, characterized in that: The moving member (32) cooperates with a plurality of groups of guiding members (33).

4. The mobile filling system according to claim 3, characterized in that: The plurality of clamping channels (411) are distributed on the holder (41) at a preset interval, and a plurality of penetrating wind curtain channels (412) are provided around the distribution path of the plurality of clamping channels (411). The wind curtain channels (412) are in the same direction as the clamping channels (411), and the wind curtain channels (412) are externally connected to sterile air, so that a sterile air curtain is formed from top to bottom around the plurality of filling needles (2), and the sterile air curtain covers at least the area between the clamping mechanism (4) and the extrusion die (1) from top to bottom.

5. The mobile filling system according to claim 3, characterized in that: The extrusion die head (1) comprises a body (11) and an extrusion mandrel (12) arranged on the body (11); the through holes are arranged on the extrusion mandrel (12); the number of the through holes is consistent with the number of the clamping channels (411) or the filling needles (2) and corresponds one to one.

6. The mobile filling system according to claim 5, characterized in that: The extrusion mandrel (12) is provided with a sterile gas channel (15) in communication with each of the through holes, and the sterile gas channel (15) is externally connected to sterile gas so as to pass sterile gas into the annular space (14) between the outer wall of the filling needle (2) and the inner wall of the through hole.

7. The mobile filling system according to claim 5, characterized in that: A reserved space (35) is reserved between the lower seat (34) to expose the extrusion core shaft (12), and the clamping mechanism (4) is in contact with the extrusion core shaft (12) through the reserved space (35). A first sealing ring (13) is provided on the extrusion core shaft (12) to seal and abut against the clamping mechanism (4), and the first sealing ring (13) is located on the periphery of the plurality of filling needles (2) so that the plurality of filling needles (2) form a sealed space isolated from the outside.

8. The mobile filling system according to any one of claims 1 to 7, characterized in that: A sterilization box (6) is arranged at the lower side of the extrusion die (1) and at a position corresponding to the through hole. The sterilization box (6) is provided with a sterilization hole (61) connected to the through hole so that the filling needle (2) can extend into the sterilization hole (61). A second sealing ring is provided at the upper part of the sterilization box (6) and is in sealing contact with the extrusion die (1). A hydrophobic hole (62) is provided at the lower part of the sterilization box (6).

9. The mobile filling system according to claim 1, characterized in that: The power end of the power member (5) performs linear motion, and the power member (5) is one of a power cylinder provided with a piston mechanism, a linear motor, and a motor provided with a transmission mechanism.

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