CN220948653U - Filling production line of liquid-liquid double-cavity injector - Google Patents

Abstract

The utility model discloses a filling production line of a liquid-liquid double-cavity injector, which relates to the technical field of medicine packaging production and comprises a nest box, a transfer conveying line, a grabbing device, a liquid filling assembly, a first sealing assembly and a second sealing assembly.

Description

Filling production line of liquid-liquid double-cavity injector

Technical Field

The application relates to the technical field of medicine packaging production, in particular to a filling production line of a liquid-liquid double-cavity syringe.

Background

The prior prefilled needle injector is mainly applied to the industries of vaccines, medical science and the like. When the syringe is used by a user, the front needle of the syringe is penetrated into skin or other forms of connectors are connected with corresponding interfaces without dispensing, and the rear push rod is pushed. Most of products such as vaccines have certain biological activity, and a plurality of physical and chemical reactions exist among different liquid medicines, so that the liquid-liquid double-cavity injector becomes an ideal solution for avoiding the vaccine losing biological activity and the liquid medicine invalidation.

The existing liquid-liquid double-cavity injector is filled in a continuous twice filling and plugging mode, a nest plate grabbing station of the existing liquid-liquid double-cavity injector is usually two single-arm mechanisms, a nest plate transferring station is two sets of mechanisms, a filling mechanism is usually a single-set filling pump, the two single-arm mechanisms occupy large space, the process flow is complex, and the production efficiency is low.

Therefore, how to avoid the influence of low production efficiency of the liquid-liquid dual-cavity injection product is a technical problem that needs to be solved by the skilled in the art at present.

Disclosure of utility model

The application aims to provide a filling production line of a liquid-liquid double-cavity injector, which can avoid the problem of low production efficiency of liquid-liquid double-cavity injection products.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

A filling line for liquid-liquid dual chamber syringes, comprising:

the nest box comprises a nest plate and a double-cavity container, wherein a plurality of double-cavity containers are arranged on the nest plate, each double-cavity container is provided with a first cavity and a second cavity for placing different liquids, and each double-cavity container is provided with a bypass passage for mixing the different liquids;

The transfer conveying line is used for driving the nest box to move along a first direction, one side of the transfer conveying line is provided with a nest plate transfer station, the nest plate transfer station is provided with a tray moving device, and the tray moving device is used for driving the nest plate and the double-cavity container to move;

The grabbing device is arranged between the nest plate transferring station and the transferring conveying line and is provided with a first grabbing arm and a second grabbing arm which are not mutually influenced, and the first grabbing arm and the second grabbing arm can drive the nest plate to move;

The liquid filling assembly comprises a first liquid filling device and a second liquid filling device, and the first liquid filling device and the second liquid filling device are used for respectively adding different liquids into the double-cavity container;

The first sealing assembly and the second sealing assembly comprise a rubber plug hopper, a turnover mechanism and a plug adding station, the plug adding station is used for adding rubber plugs to the double-cavity container filled with liquid, and filling stations are arranged between the first liquid filling device and the second liquid filling device and between the first liquid filling device and the plug adding station.

Preferably, the gripping device further comprises a first lifting shaft and a second lifting shaft, the first lifting shaft is sleeved on the second lifting shaft, and the first gripping arm and the second gripping arm are respectively and rotatably connected to the first lifting shaft and the second lifting shaft.

Preferably, the joint of the second grabbing arm and the second lifting shaft is provided with a sealing cover, a cavity and a threaded hole are formed in the sealing cover, the cavity is used for the rotation of the second grabbing arm, and the threaded hole is used for communicating the cavity with the outside of the sealing cover.

Preferably, the first grabbing arm and the second grabbing arm are both provided with vacuum suction rods, one ends of the vacuum suction rods, which deviate from the first grabbing arm or the second grabbing arm, are provided with vacuum chucks, and the vacuum chucks are used for driving the nest plate and the double-cavity container to move.

Preferably, the first grabbing arm is provided with a limiting rod, and the limiting rod can limit the rotation amplitude of the first grabbing arm.

Preferably, the filling station comprises a filling stand and a filling needle connected to the first liquid filling device or the second liquid filling device, the filling needle being for adding liquid to the dual-chamber container.

Preferably, the rubber plug hopper and the plug adding station are respectively positioned at two ends of the turnover mechanism in the first direction, the turnover mechanism is correspondingly provided with a plug ejecting mechanism, and a conveying channel is arranged between the rubber plug hopper and the turnover mechanism and used for conveying rubber plugs.

Preferably, the first liquid filling device and the second liquid filling device each comprise a plurality of liquid filling pump sets, the plurality of liquid filling pump sets are uniformly arranged along the second direction, and the first direction and the second direction are mutually perpendicular.

Preferably, the liquid filling pump set is a ceramic plunger pump.

Preferably, the gripping device, the liquid filling assembly, the first sealing assembly and the second sealing assembly are arranged on the same side relative to the transfer line.

Compared with the background art, the filling production line of the liquid-liquid double-cavity injector comprises a nest box, a transfer conveying line, a grabbing device, a liquid filling assembly, a first sealing assembly and a second sealing assembly, wherein the nest box comprises a nest plate and a double-cavity container, a plurality of double-cavity containers are arranged on the nest plate, the double-cavity container is provided with a first cavity and a second cavity for placing different liquids, and a bypass passage for mixing the different liquids is arranged on the double-cavity container; the transfer conveying line is used for driving the nest box to move along a first direction, one side of the transfer conveying line is provided with a nest plate transfer station, the nest plate transfer station is provided with a tray moving device, and the tray moving device is used for driving the nest plate and the double-cavity container to move; the grabbing device is arranged between the nest plate transferring station and the transferring conveying line and is provided with a first grabbing arm and a second grabbing arm which are not mutually influenced, and the first grabbing arm and the second grabbing arm can drive the nest plate to move; the liquid filling assembly comprises a first liquid filling device and a second liquid filling device, and the first liquid filling device and the second liquid filling device are used for respectively adding different liquids into the double-cavity container; the first sealing assembly and the second sealing assembly comprise a rubber plug hopper, a turnover mechanism and a plug adding station, the plug adding station is used for adding rubber plugs to the double-cavity container filled with liquid, and filling stations are arranged between the first liquid filling device and the second liquid filling device and between the first liquid filling device and the plug adding station.

Specifically, the nest box moves along a first direction along with the transfer conveying line, under the drive of a first grabbing arm of the grabbing device, the nest plate and the double-cavity container move to a nest plate transfer station, then the tray moving device brings the nest plate and the double-cavity container into the filling station of the first liquid filling device for liquid filling of the first cavity, the filled double-cavity container adds a rubber plug at the filling station of the first sealing component, then the transfer conveying line returns to enter the next step along with the movement of the tray moving device and the driving of the first grabbing arm, after that, the nest plate and the double-cavity container are moved to the second liquid filling device and the second sealing component through the second grabbing arm and the tray moving device, liquid and the rubber plug are respectively additionally arranged in the second cavity, then the tray moving device and the second grabbing arm move the double-cavity container into the nest box, so that filling and filling of the liquid double-cavity syringe are completed, the filling conveying line is arranged, the nest plate grabs by adopting a double-arm structure, and the nest plate is matched with the station to transfer, the two times of transfer, the filling and the filling of the filling device is more compact, the filling and the filling of the filling device is more reasonable, the filling liquid and the filling liquid can be prevented from being influenced by the two-cavity independent liquid, and the liquid injection can be stored independently, and the liquid injection efficiency is low, and the product can be prevented from being polluted by the injection.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a filling line of a liquid-liquid dual-chamber syringe according to an embodiment of the present utility model;

Fig. 2 is a schematic structural diagram of a gripping device according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a grabbing device according to another embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a finished liquid-liquid dual-chamber syringe according to an embodiment of the present utility model.

Wherein:

100-nest, 110-dual chamber container, 120-first chamber, 130-second chamber, 140-bypass path;

200-transferring conveying lines;

300-nest plate transferring stations;

400-grabbing devices, 410-first grabbing arms, 411-vacuum suction rods, 412-vacuum suction cups, 413-limiting rods, 420-second grabbing arms, 430-first lifting shafts, 440-second lifting shafts, 450-sealing covers, 451-cavities and 452-threaded holes;

510-a first liquid filling device, 520-a second liquid filling device, 530-a filling station, 540-a liquid filling pump set;

610-rubber plug hopper, 620-tilting mechanism, 621-top plug mechanism, 630-plug adding station, 631-rubber plug and 640-conveying channel.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The present application will be further described in detail below with reference to the drawings and detailed description for the purpose of enabling those skilled in the art to better understand the aspects of the present application.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left" and "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the positions or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The application aims to provide a filling production line of a liquid-liquid double-cavity injector, which can avoid the problem of low production efficiency of liquid-liquid double-cavity injection products.

In this embodiment, the direction X in the drawing is defined as a first direction, the direction Y is defined as a second direction, and the first direction and the second direction are perpendicular to each other.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

Referring to fig. 1 to 4, the present embodiment provides a filling line of a liquid-liquid dual-cavity syringe, which includes a nest box 100, a transfer line 200, a gripping device 400, a liquid filling assembly, a first sealing assembly and a second sealing assembly.

The nest 100 includes a nest plate and a double-chamber container 110, a plurality of double-chamber containers 110 are placed on the nest plate, the double-chamber container 110 has a first chamber 120 and a second chamber 130 in which different liquids are placed, and the double-chamber container 110 is provided with a bypass passage 140 for mixing the different liquids.

It should be noted that, the double-cavity container 110 inside the nest box 100 in this embodiment is a no-clean no-stop container, and for other types of containers, such as containers that are now washed or sterilized at the end on the apparatus, or other containers that are integrally packaged and contained in the form of boxes, trays, boards, etc., or single containers that are integrated in advance are also suitable for the production process provided in this embodiment, and in addition, the specific shape and configuration of the nest box 100 and the nest board for placing the double-cavity container 110 can be adjusted according to the actual needs, so as to meet the above-mentioned purpose.

It can be appreciated that the whole box double-cavity container 110 is used as an operation unit, so that the production speed is high, and the product quality control is facilitated.

Transfer chain 200 for drive nest box 100 along the first direction and remove, transfer chain 200 one side is equipped with nest board and transports station 300, and nest board transports station 300 and is equipped with tray mobile device, and tray mobile device is used for driving nest board and two-chamber container 110 and removes.

It should be noted that, the tray moving device disposed at the nest plate transferring station 300 is disclosed in the prior art, and the material tray moving device described in chinese patent CN202111645903.1 can be used to drive the nest plate and the injection container thereon to move to the designated position, which is not described herein.

In this embodiment, the nest plate transferring station 300 and the tray moving device are preferably two sets, and the nest plate transferring station 300 and the tray moving device of two sets are not mutually affected, so that uninterrupted operation of the filling production line is ensured.

The grabbing device 400 is located between the nest plate transferring station 300 and the transferring conveying line 200, the grabbing device 400 is provided with a first grabbing arm 410 and a second grabbing arm 420 which are not mutually influenced, and the first grabbing arm 410 and the second grabbing arm 420 can drive the nest plate to move.

It will be appreciated that the gripping device 400 is configured to grip the nest plate and the dual-cavity container 110, so that the nest plate and the dual-cavity container 110 before dosing can be transferred from the transfer conveyor line 200 to the nest plate transfer station 300, and the nest plate can be driven to move by the first gripping arm 410 and the second gripping arm 420, which are not mutually affected, and enter the subsequent process.

The liquid filling assembly comprises a first liquid filling device 510 and a second liquid filling device 520, wherein the first liquid filling device 510 and the second liquid filling device 520 are used for adding different liquids into the double-cavity container 110 respectively.

The first chamber 120 and the second chamber 130 respectively adopt the first liquid filling device 510 and the second liquid filling device 520 to add different liquids, so that cross contamination caused by mixed use of different liquid medicines is avoided, and the medication safety is further ensured.

The first sealing assembly and the second sealing assembly respectively comprise a rubber plug hopper 610, a turnover mechanism 620 and a plugging station 630, wherein the plugging station 630 is used for adding rubber plugs 631 to the double-cavity container 110 filled with liquid, and a filling station 530 is arranged between the first liquid filling device 510 and the second liquid filling device 520 and between the plugging station 630.

It should be understood that the two sets of the plugging station 630, the plug hopper 610 and the turnover mechanism 620 are respectively disposed close to the corresponding dosing systems, and it should be noted that, in this embodiment, the plugs 631 added in the first chamber 120 and the second chamber 130 are the same type of plugs 631, if different types of plugs 631 are needed, only the first sealing assembly and/or the second sealing assembly need to be adjusted.

Specifically, nest box 100 moves along first direction along with transporting transfer chain 200, under the first grabbing arm 410 of grabbing device 400 drives, nest plate and dual-cavity container 110 move to nest plate transportation station 300, afterwards, tray mobile device brings nest plate and dual-cavity container 110 to the filling station 530 of first liquid filling device 510 and carries out the liquid filling of first cavity 120, dual-cavity container 110 after the filling adds plug 631 at the stoppering station 630 of first seal assembly, afterwards, along with the removal of tray mobile device and the drive of first grabbing arm 410 return transporting transfer chain 200 and get into next step, afterwards, move nest plate and dual-cavity container 110 to second liquid filling device 520 and second seal assembly department through second grabbing arm 420 and tray mobile device, respectively, install liquid and plug 631 to second cavity 130, afterwards, tray mobile device and second grabbing arm 420 move dual-cavity container 110 to nest box 100 in, accomplish the filling and the stoppering of liquid dual-cavity syringe, get into subsequent process along transporting transfer chain 200, so set up, plate grabbing structure is adopted, one pair of independent both arms, can avoid the cross-linked liquid to each other between two independent stations, the liquid filling efficiency is avoided, two-phase-change between two independent filling stations, and liquid filling station pollution is avoided, and product cross-linking between two-phase filling stations is more compact, and two-phase filling efficiency is avoided.

When the liquid-liquid dual-cavity injection product is required, the rubber plug 631 between the first chamber 120 and the second chamber 130 is moved to the bypass passage 140 by applying external force, so that the two liquids are mixed and then used.

It can be appreciated that, by adopting the method of filling two liquids from the same opening, the related equipment only needs to control the height difference between the outlet of the liquid filling mechanism and the opening of the container, and the difference of the two-cavity container 110 in terms of material, shape, size and the like can be ignored, thereby greatly improving the universal applicability of the related equipment.

Preferably, the gripping device 400 further includes a first lifting shaft 430 and a second lifting shaft 440, the first lifting shaft 430 is sleeved on the second lifting shaft 440, and the first gripping arm 410 and the second gripping arm 420 are rotatably connected to the first lifting shaft 430 and the second lifting shaft 440, respectively.

It can be appreciated that the first gripper arm 410 and the second gripper arm 420 are rotatably connected to the first lifting shaft 430 and the second lifting shaft 440, respectively, and the lifting of the first lifting shaft 430 and the lifting of the second lifting shaft 440 are not affected, so that the lifting and the rotation of the first gripper arm 410 and the second gripper arm 420 are not affected, so that the efficiency of transferring the dual-cavity container 110 by the gripper device 400 can be improved.

Preferably, a sealing cover 450 is arranged at the joint of the second grabbing arm 420 and the second lifting shaft 440, a cavity 451 and a threaded hole 452 are arranged inside the sealing cover 450, the cavity 451 is used for the rotation of the second grabbing arm 420, and the threaded hole 452 is used for communicating the cavity 451 with the outside of the sealing cover 450.

It can be appreciated that the space is required for the rotation of the second grabbing arm 420, and the cavity 451 is provided inside the sealing cover 450, so that not only the rotation of the second grabbing arm 420 can be satisfied, but also the air pipe required for the operation of the second grabbing arm 420 can be placed, and the air pipe can penetrate out of the cavity 451 along the threaded hole 452, in addition, the sealing cover 450 can prevent sundries from entering the grabbing device 400, and further the influence of the sundries on the operation of the grabbing device 400 can be avoided.

Preferably, the first grabbing arm 410 and the second grabbing arm 420 are both provided with a vacuum sucking rod 411, one end of the vacuum sucking rod 411, which is away from the first grabbing arm 410 or the second grabbing arm 420, is provided with a vacuum chuck 412, and the vacuum chuck 412 is used for driving the nest plate and the double-cavity container 110 to move.

The flexible rotatable gripping arm grips the nest plate through the vacuum chuck 412, so that the double-cavity container 110 positioned on the nest plate moves along with the nest plate, and contact pollution of the double-cavity container 110 before dosing can be avoided.

Preferably, the first gripper arm 410 is provided with a limiting bar 413, and the limiting bar 413 can limit the rotation amplitude of the first gripper arm 410.

The first grabbing arm 410 is provided with a limiting rod 413, and the limiting rod 413 enables the first grabbing arm 410 to rotate within a certain range, so that the operation of the first grabbing arm 410 can be better controlled, and further the nest plate sucked up by the vacuum chuck 412 is controlled to rotate within a certain range.

Preferably, the filling station 530 includes a filling rack and a filling needle connected to either the first liquid filling device 510 or the second liquid filling device 520 for adding liquid to the dual-cavity container 110.

It will be appreciated that the filling needles are located on the filling rack for adding liquid to the dual chamber container 110, and that the number and location of the filling needles located on the filling station 530 may be adjusted as appropriate, provided that the above objectives are achieved.

Preferably, the rubber plug hopper 610 and the plugging station 630 are respectively located at two ends of the turning mechanism 620 in the first direction, the turning mechanism 620 is correspondingly provided with a plug pushing mechanism 621, and a conveying channel 640 is arranged between the rubber plug hopper 610 and the turning mechanism 620, and the conveying channel 640 is used for conveying the rubber plug 631.

It can be appreciated that the rubber plugs 631 of the rubber plug hopper 610 are conveyed to the overturning mechanism 620 through the conveying channels 640, the overturning mechanism 620 transfers the rubber plugs 631 to the double-cavity container 110 on the plugging station 630 with the help of the plugging mechanism 621, so as to plug and seal the double-cavity container 110 filled with liquid, and the number of the conveying channels 640 can be adjusted according to actual needs, so that the above purpose can be achieved.

Preferably, the first liquid filling device 510 and the second liquid filling device 520 each include a plurality of liquid filling pump groups 540, and the plurality of liquid filling pump groups 540 are uniformly arranged along the second direction, and the first direction and the second direction are mutually perpendicular.

It will be appreciated that in this embodiment, a plurality of liquid filling pump sets 540 may be used simultaneously, so as to increase the efficiency of liquid sub-packaging, and in addition, when one liquid filling pump set 540 fails, other liquid filling pump sets 540 may be used continuously, so as to avoid interruption of production.

Preferably, the liquid filling pump set 540 is a ceramic plunger pump.

The liquid filling pump 540 may be a peristaltic pump, a stainless steel pump, a time pressure method, or the like, as long as the above object can be achieved.

Preferably, the grasping device 400, the liquid filling assembly, the first closure assembly, and the second closure assembly are disposed on the same side with respect to the transfer conveyor line 200.

It can be appreciated that the grabbing device 400, the liquid filling assembly, the first sealing assembly and the second sealing assembly are disposed on the same side relative to the transfer line 200, so that the production process can be optimized, the equipment structure can be simplified, the universality can be improved, and the two-cavity container 110 products with different materials and different specifications can be better compatible.

In this embodiment, specific positions of each device, station, and the like may be adjusted according to actual needs, so long as the above-mentioned objects can be achieved.

In summary, the transfer conveyor line 200 moves along the first direction, the nest box 100 after unpacking and unpacking is placed in the nest box, the nest box is transferred to the first grabbing arm 410 of the grabbing device 400 through the transfer conveyor line 200, the first grabbing arm 410 of the grabbing device 400 swings to the position above the nest box 100 from the original position, at this time, the first lifting shaft 430 descends, the vacuum chuck 412 firmly sucks the nest plate, the first lifting shaft 430 ascends, rotates to the position above the nest plate transfer station 300, the nest plate is placed in the nest plate transfer station 300, the nest plate transfer station 300 transfers the nest plate and the double-cavity container 110 to the first liquid filling device 510 and the first sealing assembly together, and when the nest plate is filled and plugged once, the direct vibration device of the rubber plug hopper 610 oscillates, the rubber plug 631 is sent to the preset position through the conveying channel 640, and the plug plugging action is completed by means of the top plug pushing mechanism 621 and the overturning mechanism 620. After the plugging is completed, the nest plate transferring station 300 returns to the original position, the nest plates are grabbed by the grabbing device 400 and placed in the nest box 100, and transferred to the next station by the transferring and conveying line 200, and the second liquid filling device 520 and the second sealing assembly perform secondary filling and plugging. The secondary filling and plugging processes are consistent with those of the primary filling and plugging processes, and are not repeated. After the secondary filling and plugging are completed, the liquid-liquid double-cavity injector is transported to a rotary labeling station by a conveying line, so that the whole filling and plugging production process of the liquid-liquid double-cavity injector is completed. So set up, the nest board snatchs the station and adopts the both arms structure, and a transfer chain 200, cooperation nest board transport station 300, with twice filling, add the stopper compacter, reasonable link together, independent storage, independent filling between the different liquid medicine has avoided cross contamination between the liquid medicine to can avoid the problem that liquid-liquid double-chamber injection product production efficiency is low.

It should be noted that in this specification relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The embodiments of the present utility model have been described in detail. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (10)

1. The utility model provides a filling production line of two chamber syringes of liquid which characterized in that includes:

A nest box (100) comprising a nest plate and a double-cavity container (110), wherein a plurality of double-cavity containers (110) are arranged on the nest plate, the double-cavity container (110) is provided with a first cavity (120) and a second cavity (130) for placing different liquids, and the double-cavity container (110) is provided with a bypass passage (140) for mixing the different liquids;

A transferring conveying line (200) for driving the nest box (100) to move along a first direction, wherein a nest plate transferring station (300) is arranged on one side of the transferring conveying line (200), the nest plate transferring station (300) is provided with a tray moving device, and the tray moving device is used for driving the nest plate and the double-cavity container (110) to move;

The grabbing device (400) is positioned between the nest plate transferring station (300) and the transferring conveying line (200), the grabbing device (400) is provided with a first grabbing arm (410) and a second grabbing arm (420) which are not mutually influenced, and the first grabbing arm (410) and the second grabbing arm (420) can drive the nest plate to move;

A liquid filling assembly comprising a first liquid filling device (510) and a second liquid filling device (520), the first liquid filling device (510) and the second liquid filling device (520) being adapted to add different ones of the liquids to the dual-chamber container (110), respectively;

The first sealing assembly and the second sealing assembly comprise a rubber plug hopper (610), a turnover mechanism (620) and a plugging station (630), wherein the plugging station (630) is used for adding a rubber plug (631) to the double-cavity container (110) filled with liquid, and a filling station (530) is arranged between the first liquid filling device (510) and the second liquid filling device (520) and between the plugging station (630).

2. The filling line of a liquid-liquid dual chamber syringe according to claim 1, wherein the gripping device (400) further comprises a first lifting shaft (430) and a second lifting shaft (440), the first lifting shaft (430) is sleeved on the second lifting shaft (440), and the first gripping arm (410) and the second gripping arm (420) are rotatably connected to the first lifting shaft (430) and the second lifting shaft (440), respectively.

3. The filling production line of the liquid-liquid double-cavity injector according to claim 2, wherein a sealing cover (450) is arranged at the joint of the second grabbing arm (420) and the second lifting shaft (440), a cavity (451) and a threaded hole (452) are arranged inside the sealing cover (450), the cavity (451) is used for the second grabbing arm (420) to rotate, and the threaded hole (452) is used for communicating the cavity (451) with the outside of the sealing cover (450).

4. A filling line for liquid-liquid double-cavity syringes according to claim 3, wherein the first gripper arm (410) and the second gripper arm (420) are both provided with a vacuum suction rod (411), one end of the vacuum suction rod (411) facing away from the first gripper arm (410) or the second gripper arm (420) is provided with a vacuum chuck (412), and the vacuum chuck (412) is used for driving the nest plate and the double-cavity container (110) to move.

5. The filling line of the liquid-liquid double-cavity syringe according to claim 4, wherein the first gripping arm (410) is provided with a limiting rod (413), and the limiting rod (413) can limit the rotation amplitude of the first gripping arm (410).

6. The filling line of liquid-liquid double-chamber syringes according to any one of claims 2 to 5, characterized in that the filling station (530) comprises a filling rack and a filling needle connected to the first liquid filling device (510) or the second liquid filling device (520), the filling needle being used for adding the liquid to the double-chamber container (110).

7. The filling production line of the liquid-liquid dual-cavity injector according to claim 6, wherein the rubber plug hopper (610) and the plugging station (630) are respectively located at two ends of the turning mechanism (620) in the first direction, the turning mechanism (620) is correspondingly provided with a top plug mechanism (621), a conveying channel (640) is arranged between the rubber plug hopper (610) and the turning mechanism (620), and the conveying channel (640) is used for conveying the rubber plug (631).

8. The filling line of liquid-liquid dual chamber syringes as set forth in claim 7, wherein the first liquid filling device (510) and the second liquid filling device (520) each comprise a plurality of liquid filling pump groups (540), the plurality of liquid filling pump groups (540) being uniformly arranged along a second direction, the first direction being perpendicular to the second direction.

9. The filling line of liquid-liquid dual chamber syringes as recited in claim 8, wherein the liquid filling pump group (540) is a ceramic plunger pump.

10. The filling line of liquid-liquid double-chamber syringes according to claim 9, wherein the gripping device (400), the liquid filling assembly, the first sealing assembly and the second sealing assembly are arranged on the same side with respect to the transfer conveyor line (200).