Pre-filled syringe assembling equipment

Abstract

The invention belongs to the technical field of injector assembling equipment, and provides pre-filled injector assembling equipment which comprises an assembling rotary disc, a clamping assembly, a quantitative ring feeding assembly, a push rod assembling assembly, a first push rod detecting assembly, a piston assembling assembly and a sleeve assembling assembly. A quantitative ring feeding station, a push rod assembling station, a piston assembling station and a sleeve assembling station are arranged in the circumferential direction of the assembling rotary disc. According to the pre-filled syringe assembling equipment provided by the invention, all assembling procedures are annularly connected in series, so that the structure of the device is more compact; in the assembling process, clamping and fixing components and positions do not need to be frequently switched, so that a production line is more concise, and needed equipment is effectively reduced; meanwhile, the clamping assembly is emptied while assembling of the injector is finally completed, the clamping assembly directly enters the next cycle, the assembling process is more concise, and needed equipment is further reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of syringe assembly equipment, and in particular relates to a pre-filled syringe assembly equipment. Background Art

[0002] Among them, the prefilled syringe is a new type of syringe that loads the drug into the syringe in advance. It usually includes a metering ring, a piston, a push rod and a sleeve. The side of the push rod is provided with an external thread, the inside of the metering ring is provided with an internal thread, the metering ring is screwed onto the push rod, the piston is clamped at the lower end of the push rod, and the push rod is slidably arranged in the sleeve.

[0003] Prefilled syringes save medicine bottles and have high practical value, but they still require a lot of manpower to assemble the quantitative ring, piston, push rod and sleeve before filling the medicine. This is not only inefficient and costly, but also cannot guarantee the sterility requirements of the syringe.

[0004] In the prior art, there are some devices that assemble two components separately. During assembly, one component is usually clamped and fixed, and then the other component is manipulated for assembly. However, since the devices that usually assemble different components do not have uniform components to be clamped and fixed and the clamping positions, the production line consisting of multiple assembly devices connected in series is more complicated and requires more equipment. Summary of the Invention

[0005] The present invention provides a prefilled syringe assembly device, aiming to solve the technical problems described in the above background technology.

[0006] To achieve the above-mentioned object, the technical solution adopted by the present invention is to provide a prefilled syringe assembly device, comprising: The assembly turntable is intermittently rotated, and the circumference of the assembly turntable is provided with a metering ring loading station, a push rod assembly station, a piston assembly station and a sleeve assembly station; A clamping assembly is fixedly connected to the assembly turntable and is used to clamp the quantitative ring; the assembly turntable drives the clamping assembly to clamp the quantitative ring and sequentially pass through the quantitative ring loading station, the push rod assembly station, the piston assembly station and the sleeve assembly station to complete the loading of the quantitative ring and the assembly of the push rod, piston and sleeve; A quantitative ring loading assembly is provided at the quantitative ring loading station and is used to place a quantitative ring into the clamping assembly located at the quantitative ring loading station; A push rod assembly component is provided at the push rod assembly station and is used to install the push rod into the quantitative ring in the clamping component located at the push rod assembly station; a piston assembly component, provided at the piston assembly station, for assembling the piston onto the push rod on the clamping component located at the piston assembly station; and The sleeve assembly component is arranged at the sleeve assembly station and is used for removing the push rod located at the sleeve assembly station from the clamping component and installing it into the sleeve.

[0007] In a possible implementation of the prefilled syringe assembly equipment provided by the present invention, the assembly turntable includes a rotating disk body and a fixed frame, the rotating disk body is arranged to rotate intermittently, and the fixed frame is arranged on the upper side of the rotating disk body and is spaced apart from the rotating disk body.

[0008] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the assembly turntable further includes: rack, fixed setup; and A cam divider is connected to the frame, the cam divider is provided with an inner ring and an outer ring, the inner ring is fixed, and the outer ring is used to output power; Wherein, the rotating disc is connected to the inner ring of the cam divider, and the fixing frame is connected to the outer ring of the cam divider.

[0009] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the clamping assembly includes: A plurality of clamping assemblies are arranged at intervals along the circumference of the assembly turntable and connected to the rotating disk body, the clamping assemblies are provided with a plurality of elastic clamping positions, and the elastic clamping positions are used to clamp the quantitative ring; and At least two releasing components are provided at both the quantitative ring loading station and the sleeve assembly station. The releasing components are connected to the fixing frame and are used to enable the clamping component to release the quantitative ring.

[0010] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the clamping assembly includes: A fixed block is fixed on the assembly turntable, with a plurality of first half holes provided on one side, first half grooves are provided on both sides of the first half holes, and the first half grooves are connected to the first half holes; A movable block is provided on one side of the fixed block, wherein the movable block is provided with a plurality of second half holes on a side facing the fixed block, and second half grooves are provided on both sides of the second half holes, wherein the second half holes correspond to and are aligned with the first half holes one-to-one to form the elastic clamping position, and the second half grooves correspond to and are aligned with the first half grooves one-to-one to form avoidance grooves; A plurality of guide rods are arranged in parallel and spaced apart on the side of the movable block facing the fixed block, each of the guide rods passes through the fixed block and is slidably engaged with the fixed block; one end of the guide rod is connected to the movable block, and the other end is provided with a stop block; and A plurality of return springs are arranged on the side of the fixed block facing away from the movable block, corresponding to the guide rods one by one and sleeved on the guide rods, one end of the return spring abuts against the fixed block, and the other end abuts against the stop block.

[0011] The release assembly comprises: a release cylinder fixedly connected to the fixing frame; and The release frame is connected to the power output end of the release cylinder and is used to push the guide rod.

[0012] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the metering ring loading assembly includes: A sample ring placement assembly for placing the sample ring to be assembled; and The quantitative ring assembly component includes a quantitative ring gripper and a quantitative ring drive component. The power output end of the quantitative ring drive component is connected to the quantitative ring gripper, which is used to drive the quantitative ring gripper to grab the quantitative ring from the quantitative ring placement component and place it into the clamping component located at the quantitative ring loading station.

[0013] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the metering ring loading assembly further includes: A quantitative loop assembly bracket, fixedly arranged; and The quantitative ring transport component is used to transport the quantitative ring to the quantitative ring placement component; Wherein, the quantitative loop transport component includes: A quantitative ring vibration component connected to the quantitative ring assembly bracket; A quantitative ring transport frame connected to the vibration assembly, wherein the quantitative ring transport frame is provided with a plurality of quantitative ring track grooves, along which the quantitative ring is adapted to slide, and the quantitative ring vibration assembly is used to drive the quantitative ring transport frame to vibrate; and The quantitative ring vibrating plate is docked with the quantitative ring transport rack and is used to transport the quantitative ring to the quantitative ring transport rack.

[0014] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the quantitative loop placement component includes: A quantitative ring placement rack is slidably matched with the quantitative ring assembly bracket, is arranged at the end of the quantitative ring track groove, and has the freedom to slide in a direction perpendicular to the conveying direction of the end of the quantitative ring track groove; the quantitative ring placement rack is provided with a plurality of quantitative ring storage slots on one side facing the quantitative ring track groove; the quantitative ring storage slots correspond to the quantitative ring track grooves one by one, and when the quantitative ring storage slots are aligned with the quantitative ring track grooves, the quantitative ring in the quantitative ring track groove slides into the quantitative ring storage slots; and The quantitative ring dislocation driving component is connected to the quantitative ring assembly bracket, and the power output end is connected to the quantitative ring placement rack, which is used to drive the quantitative ring placement rack to slide along the quantitative ring assembly bracket.

[0015] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the push rod assembly assembly includes: The first push rod assembly bracket is fixedly arranged; A push rod placement assembly is provided outside the push rod assembly station and is used to store the push rods to be assembled; a first push rod drive assembly connected to the first push rod assembly bracket; and A push rod assembly assembly is connected to the power output end of the first push rod drive assembly and is used to move between the push rod placement assembly and the quantitative ring located at the push rod assembly station under the drive of the first push rod drive assembly. The push rod assembly assembly is provided with a rotating clamping assembly for clamping the push rod and driving the push rod to rotate.

[0016] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the push rod assembly assembly further includes a push rod transport assembly; the push rod transport assembly includes: a push rod vibration assembly connected to the first push rod assembly bracket; A push rod transport frame connected to the vibration assembly, wherein the push rod transport frame is provided with a plurality of push rod track grooves, wherein the upper end of the push rod is clamped in the push rod track groove and is suitable for sliding along the push rod track groove, and the push rod vibration assembly is used to drive the push rod transport frame to vibrate; and The push rod vibrating plate is docked with the push rod transport rack and is used for transporting the push rods to the push rod transport rack.

[0017] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the push rod placement assembly includes: A push rod placement rack is provided at the end of the push rod track groove and is fixed to the first push rod assembly bracket. The push rod placement rack is provided with a plurality of push rod storage slots on one side facing the push rod track groove; the push rod storage slots correspond to and are aligned with the push rod track grooves one by one, and the push rods in the push rod track grooves slide into the push rod storage slots; and A push rod pushing drive assembly is arranged at the lower side of the push rod placement frame and is used for pushing the push rods in the push rod placement frame upwards.

[0018] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the push rod assembly further includes: a push rod assembly frame connected to the first push rod drive assembly or a power output end of the first push rod drive assembly, and configured to move under the drive of the first push rod drive assembly; A push rod buffer frame is slidably matched with the push rod assembly frame and has the freedom to slide up and down relative to the push rod assembly frame; A plurality of buffer assemblies are provided between the push rod assembly frame and the push rod buffer frame; the buffer assemblies include a limit rod and a buffer spring, the limit rod passes through the push rod buffer frame, and both ends are connected to the push rod assembly frame; the buffer spring is sleeved on the limit rod, and both ends are respectively in contact with the push rod assembly frame and the push rod buffer frame; Wherein, the rotary clamping assembly is connected to the push rod buffer frame.

[0019] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the push rod assembly assembly further includes a first positioning assembly, and the first positioning assembly includes: Two first positioning frames are provided with first positioning half holes on opposite sides to form a first positioning hole. The first positioning hole is coaxial with the quantitative ring on the lower side, so as to make the push rod coaxial with the quantitative ring. The first positioning drive assembly has a power output end connected to the two first positioning frames, and is used to drive the two first positioning frames to move toward or away from each other.

[0020] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the push rod assembly assembly includes two push rod assembly assemblies, and further includes: A second push rod assembly bracket, fixedly disposed between the piston assembly station and the sleeve assembly station; and a second push rod driving assembly connected to the second push rod assembly bracket; The two push rod assembly components are respectively connected to the power output ends of the first push rod driving component and the second push rod driving component; the second push rod driving component is used to drive the push rod assembly component to move up and down.

[0021] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the device further includes: A first push rod detection assembly is provided at the push rod assembly station, and is used to detect whether the push rod is assembled in place; A rejection assembly is provided between the push rod assembly station and the piston assembly station. The rejection assembly is provided at the push rod rejection station and is used to reject push rods that are not assembled in place. The clamping assembly includes three releasing assemblies, and the three releasing assemblies are respectively arranged at the quantitative ring loading station, the push rod rejecting station and the sleeve assembly station.

[0022] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the first push rod detection component includes: A first photoelectric sensor fixedly connected to the push rod assembly frame; and A first sensing block is fixedly connected to the push rod buffer frame; The rejection component includes: Rejector gripper, used to hold the push rod; and The rejection drive assembly is used to drive the rejection gripper to move.

[0023] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the push rod assembly assembly further includes a second push rod detection assembly, which is provided between the second push rod assembly bracket and the sleeve assembly assembly, and is used to detect whether the push rod is properly assembled; The second push rod detection component includes: A second detection bracket, fixedly arranged; and The second photoelectric sensor is arranged on the upper side of the push rod and is connected to the second detection bracket.

[0024] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the piston assembly component includes: A piston placement rack, located outside the piston assembly station, for storing the pistons to be assembled; and The piston assembly assembly includes a push rod pushing piece and a piston pushing assembly. The push rod pushing piece is arranged on the upper side of the assembly turntable and is suitable for abutting against the top of the push rod; the piston pushing assembly is arranged on the lower side of the piston placement frame and is used to push the piston placement assembly upward.

[0025] In a possible implementation of the prefilled syringe assembly equipment provided by the present invention, it is arranged between the piston assembly station and the sleeve assembly station; the piston detection assembly includes a third detection bracket and a third photoelectric sensor, the third detection bracket is fixedly arranged, and the third photoelectric sensor is arranged on the lower side of the assembly turntable and is connected to the third detection to detect whether the piston is installed in the lower end of the push rod.

[0026] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the piston assembly assembly further includes a piston assembly bracket and a piston transport assembly, and the piston assembly bracket is fixedly arranged; The piston transport assembly comprises: a piston vibration assembly connected to the piston assembly bracket; A piston transport frame connected to the vibration assembly, wherein the piston transport frame is provided with a plurality of piston track grooves, the piston being adapted to slide along the piston track grooves, and the piston vibration assembly being used to drive the piston transport frame to vibrate; and A piston vibrating plate, docked with the piston transport rack, for transporting the piston to the piston transport rack; Among them, the piston placement rack is arranged at the end of the piston track groove and is connected to the power output end of the piston pushing assembly. The piston placement rack is provided with a plurality of piston storage grooves on the side facing the piston track groove; the piston storage grooves correspond to and are aligned with the piston track grooves one by one, and the piston in the piston track groove slides into the piston storage groove.

[0027] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the sleeve assembly component includes: a sleeve placement assembly, disposed outside the sleeve assembly station and used for placing the sleeve to be assembled; and The sleeve assembly component includes a sleeve gripper and a sleeve drive component. The power output end of the sleeve drive component is connected to the sleeve gripper, which is used to drive the sleeve gripper to grab the push rod equipped with the metering ring and the piston from the sleeve assembly station and press it into the sleeve.

[0028] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the sleeve gripper is a negative pressure suction cup, which is used to absorb the top of the push rod and grasp the push rod.

[0029] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the sleeve assembly component further includes: Sleeve assembly bracket, fixed setting; and a sleeve transport assembly, used for transporting the sleeve to the sleeve placement assembly; Wherein, the sleeve transport assembly includes: A sleeve loading rack connected to the sleeve assembly bracket, wherein the sleeve loading rack is provided with a sleeve loading track groove, and the sleeve is adapted to slide along the sleeve loading track groove; and The sleeve vibrating plate is connected to the sleeve loading rack and is used to transport the sleeve to the sleeve loading rack.

[0030] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the sleeve assembly assembly further includes a second positioning assembly, and the second positioning assembly includes: Two second positioning frames are provided with second positioning half holes on opposite sides to form a second positioning hole, and the second positioning hole is coaxial with the sleeve on the lower side, so as to make the push rod coaxial with the sleeve; The second positioning drive assembly has a power output end connected to the two second positioning frames, and is used to drive the two second positioning frames to move toward or away from each other.

[0031] In a possible implementation of the prefilled syringe assembly device provided by the present invention, the sleeve placement component includes: The storage turntable is rotatably matched with the sleeve assembly bracket, and the storage turntable is provided with a plurality of sleeve placement grooves along its circumference; the storage turntable is provided with a loading position and an unloading position on the side along the circumference, and the sleeve loading rack is arranged at the loading position and docked with the sleeve placement groove on the storage turntable located at the loading position; A turntable drive assembly is connected to the sleeve assembly bracket, and a power output end is connected to the storage turntable, for driving the storage turntable to rotate intermittently; A retaining ring is arranged around the outside of the storage turntable and is fixedly connected to the sleeve assembly bracket to form a closed groove in cooperation with the sleeve placement groove; the retaining ring is provided with a notch, and the loading position and the unloading position are both located in the notch; Wherein, the sleeve loading rack is arranged to be tilted upward away from the side of the storage turntable.

[0032] In a possible implementation of the prefilled syringe assembly equipment provided by the present invention, the sleeve transport assembly also includes a sleeve unloading rack, which is arranged at the unloading position and is provided with a unloading track groove. One end of the sleeve unloading rack is arranged on the lower side of the storage turntable for receiving the sleeve on the storage turntable, and the other end is arranged to be tilted downward.

[0033] In a possible implementation of the prefilled syringe assembly equipment provided by the present invention, the sleeve transport assembly also includes a sleeve stopper, which is arranged at the end of the sleeve loading rack, and the end of the sleeve stopper is suitable for extending into the sleeve or being placed outside the sleeve to prevent the sleeve from moving toward the storage turntable.

[0034] The beneficial effects of the prefilled syringe assembly equipment provided by the present invention are as follows: compared with the prior art, the prefilled syringe assembly equipment provided by the present invention has a quantitative ring loading station, a push rod assembly station, a piston assembly station and a sleeve assembly station arranged around the assembly turntable, and the assembly turntable drives the clamping component to circulate through each station, connecting each assembly process in series in a ring shape, and making the device structure more compact; and the quantitative ring is fixedly clamped by the clamping component, and passes through the push rod assembly station, the piston assembly station and the sleeve assembly station in sequence to complete the assembly of the syringe. During the assembly process, there is no need to frequently switch the clamped and fixed parts and positions, making the production line more concise and effectively reducing the required equipment; and when the syringe assembly is finally completed, the clamping component is emptied, so that the clamping component directly enters the next cycle, making the assembly process more concise and further reducing the required equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1Schematic diagram of the three-dimensional structure of the prefilled syringe assembly equipment provided by the embodiment of the present invention Figure 1 ; Figure 2 for Figure 1 A magnified view of part A in FIG; Figure 3 for Figure 2 A magnified view of part B in FIG; Figure 4 Schematic diagram of the three-dimensional structure of the prefilled syringe assembly equipment provided by the embodiment of the present invention Figure 2 ; Figure 5 for Figure 4 Enlarged view of part C in ; Figure 6 for Figure 5 Enlarged view of part D in FIG; Figure 7 for Figure 4 Enlarged view of part E in FIG; Figure 8 Schematic diagram of the three-dimensional structure of the prefilled syringe assembly equipment provided by the embodiment of the present invention Figure 3 ; Figure 9 for Figure 8 Enlarged view of part F in ; Figure 10 for Figure 8 The enlarged view of the G part in the figure; Figure 11 for Figure 8 The enlarged view of the H part in FIG; Figure 12 for Figure 8 A magnified view of part I in FIG; Figure 13 Schematic diagram of the three-dimensional structure of the prefilled syringe assembly equipment provided by the embodiment of the present invention Figure 4 ; Figure 14 for Figure 13 The enlarged view of the J part in FIG; Figure 15 for Figure 13 Enlarged view of the K part in FIG; Figure 16 for Figure 13 The enlarged view of the L part in FIG; Description of reference numerals: 0101, rotating disc; 0102, fixed frame; 0103, frame; 0104, cam divider; 0210, clamping assembly; 0211, fixed block; 0212, movable block; 0213, guide rod; 0214, return spring; 0220, release assembly; 0221, release cylinder; 0222, release frame; 0310, quantitative ring assembly bracket; 0321, quantitative ring vibration assembly; 0322, quantitative ring transport rack; 0323, quantitative ring vibration plate; 0331, quantitative ring placement rack; 0332, quantitative ring dislocation drive assembly; 0340, quantitative ring gripper; 0350, quantitative ring drive assembly; 0410, first push rod assembly bracket; 0421, push rod placement rack; 0422, push rod push drive assembly; 0430, first push rod drive assembly; 0441, rotary clamping assembly; 0442, push rod assembly frame; 0443, push rod buffer frame; 0444, limit rod; 0445, buffer spring; 0451, push rod vibration assembly; 0452, push rod transport rack; 0453, push rod vibration plate; 0461, first positioning frame; 0462, first positioning drive assembly; 0471, first photoelectric sensor; 0472, first induction block; 0510, rejection drive assembly; 0520, rejection gripper; 0610, piston assembly bracket; 0620, piston placement rack; 0631, push rod push piece; 0632, piston push assembly; 0641, piston vibration assembly; 0642, piston transport rack; 0643, piston vibration plate; 0651, third detection bracket; 0652, third photoelectric sensor; 0710, second push rod assembly bracket; 0720, second push rod drive assembly; 0731, second detection bracket; 0732, second photoelectric sensor; 0810, sleeve assembly bracket; 0821, storage turntable; 0822, retaining ring; 0831, sleeve drive assembly; 0832, sleeve gripper; 0841, sleeve loading rack; 0842, sleeve vibrating plate; 0843, sleeve unloading rack; 0851, second positioning rack; 0852. Second positioning drive assembly; 0860. Sleeve stopper. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0037] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0038] The prefilled syringe assembly equipment provided by the present invention is now described.

[0039] like Figures 1 to 16 As shown, the prefilled syringe assembly equipment includes an assembly turntable, a clamping assembly, a quantitative ring feeding assembly, a push rod assembly assembly, a first push rod detection assembly, a piston assembly assembly and a sleeve assembly assembly. The assembly turntable is arranged to rotate intermittently, and the assembly turntable is circumferentially provided with a quantitative ring feeding station, a push rod assembly station, a piston assembly station and a sleeve assembly station; the clamping assembly is fixedly connected to the assembly turntable to clamp the quantitative ring; the assembly turntable drives the clamping assembly to clamp the quantitative ring and pass through the quantitative ring loading station, the push rod assembly station, the piston assembly station and the sleeve assembly station in sequence to complete the quantitative ring Loading and assembly of push rod, piston and sleeve; the quantitative ring loading assembly is located at the quantitative ring loading station, used to place the quantitative ring into the clamping assembly located at the quantitative ring loading station; the push rod assembly assembly is located at the push rod assembly station, used to install the push rod into the quantitative ring in the clamping assembly located at the push rod assembly station; the quantitative ring is assembled into a preset position on the push rod; the piston assembly assembly is located at the piston assembly station, used to install the piston onto the push rod on the clamping assembly located at the piston assembly station; the sleeve assembly assembly is located at the sleeve assembly station, used to remove the push rod located at the sleeve assembly station from the clamping assembly and install it into the sleeve.

[0040] The beneficial effects of the prefilled syringe assembly equipment provided by the present invention are: compared with the prior art, the prefilled syringe assembly equipment provided by the present invention does not require frequent switching of clamped and fixed parts and positions during the assembly process, making the production line more concise and effectively reducing the required equipment; and at the same time as the syringe assembly is finally completed, the clamping component 0210 is emptied, allowing the clamping component 0210 to directly enter the next cycle, making the assembly process more concise and further reducing the required equipment.

[0041] like Figure 1 As shown, in a specific embodiment of the prefilled syringe assembly equipment provided by an embodiment of the present invention, the assembly turntable includes a rotating disk body 0101 and a fixed frame 0102. The rotating disk body 0101 is arranged to rotate intermittently, and the fixed frame 0102 is arranged on the upper side of the rotating disk body 0101 and is spaced apart from the rotating disk body 0101.

[0042] like Figure 1 and Figure 4As shown, in a specific implementation of the prefilled syringe assembly equipment provided by an embodiment of the present invention, the assembly turntable also includes a frame 0103 and a cam divider 0104, and the frame 0103 is fixed; the cam divider 0104 is connected to the frame 0103, and the cam divider 0104 is provided with an inner ring and an outer ring, the inner ring is fixed, and the outer ring is used to output power.

[0043] The rotating disc 0101 is connected to the inner ring of the cam divider 0104 , and the fixed frame 0102 is connected to the outer ring of the cam divider 0104 .

[0044] It should be noted that the cam divider 0104 is an existing desktop cam divider 0104.

[0045] like Figure 1 and Figure 2 As shown, in a specific embodiment of the prefilled syringe assembly device provided by an embodiment of the present invention, the clamping assembly includes a plurality of clamping assemblies 0210 and at least two release assemblies 0220, and the plurality of clamping assemblies 0210 are arranged at intervals along the circumference of the assembly turntable and are connected to the rotating disk body 0101. The clamping assembly 0210 is provided with one, two or more elastic clamping positions, and the elastic clamping positions are used to clamp the quantitative ring;.

[0046] Specifically, in this embodiment, the clamping assembly 0210 is provided with two elastic clamping positions to synchronously complete the assembly of two syringes and ensure assembly efficiency.

[0047] It should be noted that the fixing frame 0102 is a disc, and can also be a frame structure, as long as it meets the installation requirements of the release component 0220.

[0048] When the quantitative ring is placed in the elastic clamping position or the push rod equipped with the quantitative ring is moved out of the elastic clamping position, the quantitative ring is released by the release component 0220 to facilitate its removal.

[0049] like Figure 1 and Figure 2As shown, in a specific embodiment of the prefilled syringe assembly device provided by an embodiment of the present invention, the clamping assembly 0210 includes a fixed block 0211, a movable block 0212, a plurality of guide rods 0213, and a plurality of return springs 0214. The fixed block 0211 is fixed on the assembly turntable, and a plurality of first half holes are provided on one side, and first half grooves are provided on both sides of the first half holes, and the first half grooves are connected to the first half holes; the movable block 0212 is provided on one side of the fixed block 0211, and a plurality of second half holes are provided on the side of the movable block 0212 facing the fixed block 0211, and second half grooves are provided on both sides of the second half holes, and the second half holes correspond to and are aligned with the first half holes one by one to form an elastic clamping position, and the first half holes are provided on both sides of the first half holes. The second half grooves correspond to and are aligned with the first half groove one by one, forming an avoidance groove for avoiding various clamps so that the clamps can clamp the quantitative ring; a number of guide rods 0213 are arranged in parallel and at intervals on the side of the movable block 0212 facing the fixed block 0211, and each guide rod 0213 passes through the fixed block 0211 and slides with the fixed block 0211; one end of the guide rod 0213 is connected to the movable block 0212, and the other end is provided with a stop block; a number of return springs 0214 are arranged on the side of the fixed block 0211 facing away from the movable block 0212, correspond one by one to the guide rods 0213 and are sleeved on the guide rods 0213, one end of the return spring 0214 abuts against the fixed block 0211, and the other end abuts against the stop block.

[0050] Specifically, two first half holes are provided on the fixed block 0211, and two second half holes are correspondingly provided on the movable block 0212; two guide rods 0213 are provided on the side of the movable block 0212 facing the fixed block 0211, and two return springs 0214 are respectively mounted on the two guide rods 0213 to effectively limit the sliding direction of the movable block 0212.

[0051] The release assembly 0220 includes a release cylinder 0221 and a release frame 0222. The release cylinder 0221 is fixedly connected to the fixed frame 0102; the release frame 0222 is connected to the power output end of the release cylinder 0221 to push the guide rod 0213.

[0052] It should be noted that release cylinder 0221 is an existing pneumatic cylinder and can also be replaced by a hydraulic or electric push rod. Release frame 0222 is provided with a push rod or a whole flat plate corresponding to guide rod 0213 on the side facing clamping assembly 0210. When clamping assembly 0210 needs to release the quantitative ring, release cylinder 0221 drives release frame 0222 to move toward clamping assembly 0210, pushing guide rod 0213, causing movable block 0212 to move against fixed block 0211, releasing the quantitative ring; then, release cylinder 0221 drives release frame 0222 to reset, and movable block 0212 automatically resets under the action of reset spring 0214.

[0053] like Figure 2 and Figure 3As shown, in a specific embodiment of the prefilled syringe assembly device provided by an embodiment of the present invention, the quantitative ring loading assembly includes a quantitative ring placement assembly and a quantitative ring assembly assembly. The quantitative ring placement assembly is used to place the quantitative ring to be assembled; the quantitative ring assembly assembly includes a quantitative ring gripper 0340 and a quantitative ring drive assembly 0350. The power output end of the quantitative ring drive assembly 0350 is connected to the quantitative ring gripper 0340, and is used to drive the quantitative ring gripper 0340 to grab the quantitative ring from the quantitative ring placement assembly and place it into the clamping assembly located at the quantitative ring loading station.

[0054] It should be noted that the quantitative ring gripper 0340 is an existing two-finger cylinder gripper, which can also be replaced by an electric gripper or a hydraulic gripper that can clamp the quantitative ring, and a claw that matches the quantitative ring can be installed at the end to facilitate grabbing the quantitative ring.

[0055] like Figures 1 to 3 As shown, in a specific embodiment of the prefilled syringe assembly device provided by an embodiment of the present invention, the quantitative ring loading assembly also includes a quantitative ring assembly bracket 0310 and a quantitative ring transport assembly. The quantitative ring assembly bracket 0310 is fixedly connected to the frame 0103; the quantitative ring transport assembly is used to transport the quantitative ring to the quantitative ring placement assembly.

[0056] Among them, the quantitative ring transport assembly includes a quantitative ring vibration assembly 0321, a quantitative ring transport frame 0322 and a quantitative ring vibration disk 0323. The quantitative ring vibration assembly 0321 is connected to the quantitative ring assembly bracket 0310; the quantitative ring transport frame 0322 is connected to the vibration assembly, and a plurality of quantitative ring track grooves are provided on the quantitative ring transport frame 0322. The quantitative ring is suitable for sliding along the quantitative ring track grooves. The quantitative ring vibration assembly 0321 is used to drive the quantitative ring transport frame 0322 to vibrate; the quantitative ring vibration disk 0323 is docked with the quantitative ring transport frame 0322 to transport the quantitative ring to the quantitative ring transport frame 0322.

[0057] Specifically, the quantitative ring vibration assembly 0321 is an existing direct vibration feeder. The bottom of the direct vibration feeder is connected to the quantitative ring assembly bracket 0310, and the top is connected to the quantitative ring transport frame 0322. It is used to vibrate the quantitative ring transport frame 0322, thereby driving the quantitative ring forward. The quantitative ring vibration disk 0323 is an existing vibration disk that can automatically sort the quantitative rings and send the quantitative rings to the quantitative ring transport frame 0322. A 2-5mm gap is provided between the quantitative ring vibration disk 0323 and the quantitative ring transport frame 0322 to prevent mutual interference of vibrations. The quantitative ring transport frame 0322 is provided with two quantitative ring track grooves.

[0058] like Figure 3As shown, in a specific embodiment of the prefilled syringe assembly device provided by an embodiment of the present invention, the quantitative ring placement assembly includes a quantitative ring placement rack 0331 and a quantitative ring dislocation drive assembly 0332. The quantitative ring placement rack 0331 is slidably matched with the quantitative ring assembly bracket 0310, and is arranged at the end of the quantitative ring track groove, and has the freedom to slide in a direction perpendicular to the conveying direction of the end of the quantitative ring track groove; the quantitative ring placement rack 0331 is provided with a plurality of quantitative ring storage slots on the side facing the quantitative ring track groove; the quantitative ring storage slots correspond to the quantitative ring track grooves one by one, and when the quantitative ring storage slots are aligned with the quantitative ring track grooves, the quantitative ring in the quantitative ring track groove slides into the quantitative ring storage slots; the quantitative ring dislocation drive assembly 0332 is connected to the quantitative ring assembly bracket 0310, and the power output end is connected to the quantitative ring placement rack 0331, which is used to drive the quantitative ring placement rack 0331 to slide along the quantitative ring assembly bracket 0310.

[0059] It should be noted that the quantitative ring placement rack 0331 is provided with two quantitative ring storage slots, and the quantitative ring dislocation drive assembly 0332 is a pneumatic cylinder, but may also be a hydraulic cylinder, an electric push rod, or other devices. The quantitative ring placement rack 0331 slides with the quantitative ring assembly bracket 0310 via a slide rail. After the quantitative ring slides into the quantitative ring storage slot on the quantitative ring placement rack 0331, the quantitative ring dislocation drive assembly 0332 drives the quantitative ring storage slot on the quantitative ring placement rack 0331 to dislocate with the quantitative ring track slot, thereby preventing the quantitative ring in the quantitative ring storage slot from being squeezed by the quantitative ring in the quantitative ring track slot, resulting in a grasping failure.

[0060] like Figures 4 to 7 、 Figure 9 As shown, in a specific embodiment of the prefilled syringe assembly equipment provided by an embodiment of the present invention, the push rod assembly assembly includes a first push rod assembly bracket 0410, a push rod placement assembly, a first push rod drive assembly 0430 and a push rod assembly assembly, and the first push rod assembly bracket 0410 is fixed; the push rod placement assembly is arranged outside the push rod assembly station, and is used to store the push rod to be assembled; the first push rod drive assembly 0430 is connected to the first push rod assembly bracket 0410; the push rod assembly assembly is connected to the power output end of the first push rod drive assembly 0430, and is used to move between the push rod placement assembly and the quantitative ring located at the push rod assembly station under the drive of the first push rod drive assembly 0430, and the push rod assembly assembly is provided with a rotating clamping assembly 0441, which is used to clamp the push rod and drive the push rod to rotate.

[0061] It should be noted that the rotary clamping assembly 0441 is composed of an existing rotary gripper and a motor assembly. The rotary gripper is an existing 360-degree infinitely rotating air gripper and a claw matching the push rod is installed at the end to clamp the push rod; the motor assembly is an existing ordinary motor, stepper motor or private service motor, which is used to drive the rotary gripper to rotate.

[0062] like Figure 4 and Figure 5 As shown, in a specific embodiment of the prefilled syringe assembly equipment provided by an embodiment of the present invention, the push rod assembly assembly also includes a push rod transport assembly; the push rod transport assembly includes a push rod vibration assembly 0451, a push rod transport frame 0452 and a push rod vibration disk 0453, and the push rod vibration assembly 0451 is connected to the first push rod assembly bracket 0410; the push rod transport frame 0452 is connected to the vibration assembly, and a plurality of push rod track grooves are provided on the push rod transport frame 0452, and the upper end of the push rod is clamped in the push rod track groove and is suitable for sliding along the push rod track groove, and the push rod vibration assembly 0451 is used to drive the push rod transport frame 0452 to vibrate; the push rod vibration disk 0453 is docked with the push rod transport frame 0452 and is used to transport the push rod to the push rod transport frame 0452.

[0063] It should be noted that push rod vibration assembly 0451 is a conventional direct vibration feeder. Its bottom is connected to the push rod assembly bracket and its top is connected to push rod transport rack 0452. This vibrates push rod transport rack 0452, thereby driving the push rods forward. Push rod vibration disk 0453 is a conventional vibration disk that automatically sorts the push rods and delivers them to push rod transport rack 0452. A 2-5mm gap is provided between push rod vibration disk 0453 and push rod transport rack 0452 to prevent vibration interference. Push rod transport rack 0452 is equipped with two push rod track grooves. These grooves are T-shaped, matching the top of the push rods.

[0064] like Figure 4 and Figure 7 As shown, in a specific embodiment of the prefilled syringe assembly equipment provided by an embodiment of the present invention, the push rod placement assembly includes a push rod placement rack 0421 and a push rod pushing drive assembly 0422. The push rod placement rack 0421 is arranged at the end of the push rod track groove and is fixed to the first push rod assembly bracket 0410. The push rod placement rack 0421 is provided with a plurality of push rod storage grooves on the side facing the push rod track groove; the push rod storage grooves correspond to and are aligned with the push rod track grooves one by one, and the push rods in the push rod track grooves slide into the push rod storage grooves; the push rod pushing drive assembly 0422 is arranged on the lower side of the push rod placement rack 0421, and is used to push the push rods in the push rod placement rack 0421 upward.

[0065] Specifically, the push rod pushing drive assembly 0422 is a cylinder, and can also be a hydraulic cylinder, an electric push rod, etc. When there is one push rod storage slot, the push rod can be directly pushed by the cylinder. When there are two or more push rod storage slots, a top plate needs to be installed at the end of the cylinder to lift all the push rods at the same time to facilitate the rotation of the clamping assembly 0441 to clamp the push rod.

[0066] like Figure 5 and Figure 6As shown, in a specific embodiment of the prefilled syringe assembly device provided by an embodiment of the present invention, the push rod assembly assembly further includes a push rod assembly frame 0442, a push rod buffer frame 0443 and a plurality of buffer assemblies. The push rod assembly frame 0442 is connected to the first push rod drive assembly 0430 or the power output end of the first push rod drive assembly 0430, and is used to move under the drive of the first push rod drive assembly 0430; the push rod buffer frame 0443 is slidably matched with the push rod assembly frame 0442, and has a relative push rod assembly frame. 0442 has the freedom to slide up and down; a number of buffer components are arranged between the push rod assembly frame 0442 and the push rod buffer frame 0443; the buffer component includes a limit rod 0444 and a buffer spring 0445, the limit rod 0444 passes through the push rod buffer frame 0443, and both ends are connected to the push rod assembly frame 0442; the buffer spring 0445 is sleeved on the limit rod 0444, and both ends are respectively abutted against the push rod assembly frame 0442 and the push rod buffer frame 0443; wherein, the rotating clamping component 0441 is connected to the push rod buffer frame 0443.

[0067] Specifically, two buffer assemblies are provided on the push rod assembly frame 0442. Further, such as Figure 6 、 Figure 9 and Figure 11 As shown, in a specific embodiment of the prefilled syringe assembly device provided by an embodiment of the present invention, the push rod assembly assembly also includes a first positioning assembly, the first positioning assembly includes two first positioning frames 0461 and a first positioning drive assembly 0462, and positioning half holes are provided on opposite sides of the two first positioning frames 0461 to form a positioning hole, which is coaxial with the quantitative ring on the lower side and is used to make the push rod coaxial with the quantitative ring; the power output end of the first positioning drive assembly 0462 is connected to the two first positioning frames 0461 to drive the two first positioning frames 0461 to move toward or away from each other.

[0068] Specifically, the first positioning drive component 0462 is a pneumatic finger cylinder, and can also be replaced by two cylinders, hydraulic cylinders, electric clamps, etc., which can drive the two first positioning frames 0461 to move toward or away from each other, so as to make the push rod and the quantitative ring coaxial, reduce the probability of the push rod being screwed into the quantitative ring, and ensure assembly efficiency.

[0069] like Figure 5 and Figure 10 As shown, in a specific embodiment of the prefilled syringe assembly equipment provided by an embodiment of the present invention, the push rod assembly assembly includes two push rod assembly assemblies, and also includes a second push rod assembly bracket 0710 and a second push rod drive assembly 0720. The second push rod assembly bracket 0710 is fixed between the piston assembly station and the sleeve assembly station; the second push rod drive assembly 0720 is connected to the second push rod assembly bracket 0710.

[0070] Among them, the two push rod assembly components are respectively connected to the power output ends of the first push rod driving component 0430 and the second push rod driving component 0720; the second push rod driving component 0720 is used to drive the push rod assembly component to move up and down.

[0071] It should be noted that two push rod assembly components are set up, and the quantitative ring is assembled to the top of the push rod twice at two positions. The push rod can be screwed at two positions at the same time, which effectively reduces the assembly time and improves the assembly efficiency.

[0072] like Figure 8 and Figure 10 As shown, in a specific embodiment of the prefilled syringe assembly equipment provided by an embodiment of the present invention, it also includes a first push rod detection component and a rejection component. The first push rod detection component is arranged at the push rod assembly station to detect whether the push rod is assembled in place; a push rod rejection station is provided between the push rod assembly station and the piston assembly station; the rejection component is arranged at the push rod rejection station to reject the push rod that is not assembled in place; the clamping component includes three release components 0220, and the three release components 0220 are respectively arranged at the quantitative ring loading station, the push rod rejection station and the sleeve assembly station.

[0073] like Figure 6 As shown, in a specific implementation of the prefilled syringe assembly equipment provided by an embodiment of the present invention, the first push rod detection assembly includes a first photoelectric sensor 0471 and a first sensing block 0472, the first photoelectric sensor 0471 is fixedly connected to the push rod assembly frame 0442; the first sensing block 0472 is fixedly connected to the push rod buffer frame 0443; the rejection assembly includes a rejection gripper 0520 and a rejection drive assembly 0510, the rejection gripper 0520 is used to clamp the push rod; the rejection drive assembly 0510 is used to drive the rejection gripper 0520 to move.

[0074] It should be noted that, when the quantitative ring is assembled to the preset position on the push rod, if the first push rod detection component does not detect that the quantitative ring is not assembled to the preset position of the push rod within the preset time, it is considered that the push rod is not accurately screwed into the quantitative ring. When it is transferred to the push rod rejection station, the rejection drive component 0510 drives the rejection gripper 0520 to clamp the push rod that is not accurately screwed into the quantitative ring, and the release component 0220 controls the clamping component 0210 to release the quantitative ring. The rejection drive component 0510 drives the rejection gripper 0520 that clamps the push rod to leave the clamping component 0210 and release the push rod to reject the push rod to ensure the quality of the finished product.

[0075] The rejection gripper 0520 is an existing two-finger cylinder gripper, which can also be replaced by an electric gripper or a hydraulic gripper that can clamp the push rod, and a claw matching the push rod is installed at the end to facilitate clamping the push rod.

[0076] Specifically, the preset time is set based on experience and actual conditions. In this embodiment, the preset time is 1 second; the preset position refers to the middle of the push rod.

[0077] The push rod is not screwed into the quantitative ring accurately. Usually, the external thread on the push rod and the internal thread on the quantitative ring are misaligned, resulting in the quantitative ring being screwed into the push rod only a small distance.

[0078] like Figure 13 and Figure 16 As shown, in a specific embodiment of the prefilled syringe assembly device provided by an embodiment of the present invention, the push rod assembly assembly further includes a second push rod detection assembly, which is disposed between the second push rod assembly bracket 0710 and the sleeve assembly assembly and is used to detect whether the push rod is properly assembled. "Assembled properly" here means that the dosing ring is assembled to the top of the push rod.

[0079] Specifically, the second push rod detection assembly includes a second detection bracket 0731 and a second photoelectric sensor 0732. The second detection bracket 0731 is fixedly connected to the frame 0103; the second photoelectric sensor 0732 is arranged on the upper side of the push rod and connected to the second detection bracket 0731.

[0080] It should be noted that the second photoelectric sensor 0732 determines whether the quantitative ring is screwed to the top of the push rod by detecting the distance from the top of the push rod.

[0081] During assembly, the first push rod drive assembly 0430 first drives the rotary clamping assembly 0441 to move, so that the push rod and the quantitative ring are coaxial; then, the first push rod drive assembly 0430 drives the rotary clamping assembly 0441 to move downward, the push rod and the quantitative ring are pressed, and the buffer spring 0445 is compressed, so that a certain pressure is between the push rod and the quantitative ring; the rotary clamping assembly 0441 drives the push rod to rotate and screw the push rod into the quantitative ring until the quantitative ring is in the middle of the push rod; at this time, the first sensing block 0472 blocks the first photoelectric sensor 0471, and is detected by the first photoelectric sensor 0471, indicating that the quantitative ring is assembled in place, and then the rotary clamping assembly 0441 is controlled to stop rotating, and all components are reset, and the rotating disk 0101 drives it to move to the piston assembly station. At the same time, if the first photoelectric sensor 0471 does not sense the first sensing block 0472 within the preset time, it is considered that the push rod is not correctly screwed into the quantitative ring, and the push rod is rejected when it moves to the rejection station.

[0082] like Figure 10 、 Figure 13 and Figure 14As shown, in a specific embodiment of the prefilled syringe assembly equipment provided by an embodiment of the present invention, the piston assembly assembly includes a piston placement rack 0620 and a piston assembly assembly. The piston placement rack 0620 is arranged outside the piston assembly station and is used to store the piston to be assembled; the piston assembly assembly includes a push rod pushing member 0631 and a piston pushing assembly 0632. The push rod pushing member 0631 is arranged on the upper side of the assembly turntable and is suitable for abutting against the top of the push rod to press the push rod to prevent the push rod from moving upward when assembling the piston; the piston pushing assembly 0632 is arranged on the lower side of the piston placement rack 0620 and is used to push the piston placement assembly upward.

[0083] It should be noted that the push rod pushing member 0631 and the piston pushing assembly 0632 are cylinders, and can also be hydraulic cylinders, electric push rods and other devices.

[0084] like Figure 14 As shown, in a specific embodiment of the prefilled syringe assembly equipment provided by an embodiment of the present invention, it also includes a piston detection component, which is arranged between the piston assembly station and the sleeve assembly station; the piston detection component includes a third detection bracket 0651 and a third photoelectric sensor 0652, the third detection bracket 0651 is fixedly arranged, and the third photoelectric sensor 0652 is arranged on the lower side of the assembly turntable and is connected to the third detection to detect whether the piston is installed in the lower end of the push rod.

[0085] It should be noted that after the piston is installed on the lower end of the push rod, the piston will block the third photoelectric sensor 0652. If the piston is not installed on the lower end of the push rod, the piston cannot block the third photoelectric sensor 0652. At this time, the third photoelectric sensor 0652 determines that the piston is not installed on the push rod, and then controls the alarm device to sound an alarm.

[0086] like Figure 14 As shown, in a specific implementation of the prefilled syringe assembly device provided by an embodiment of the present invention, the piston assembly assembly further includes a piston assembly bracket 0610 and a piston transport assembly, and the piston assembly bracket 0610 is fixedly arranged.

[0087] The piston transport assembly includes a piston vibration assembly 0641, a piston transport frame 0642 and a piston vibration plate 0643. The piston vibration assembly 0641 is connected to the piston assembly bracket 0610; the piston transport frame 0642 is connected to the vibration assembly. The piston transport frame 0642 is provided with a plurality of piston track grooves, and the piston is suitable for sliding along the piston track grooves. The piston vibration assembly 0641 is used to drive the piston transport frame 0642 to vibrate; the piston vibration plate 0643 is docked with the piston transport frame 0642 and is used to transport the piston to the piston transport frame 0642.

[0088] Among them, the piston placement rack 0620 is arranged at the end of the piston track groove and is connected to the power output end of the piston pushing assembly 0632. The piston placement rack 0620 is provided with a plurality of piston storage grooves on the side facing the piston track groove; the piston storage grooves correspond to and are aligned with the piston track grooves one by one, and the piston in the piston track groove slides into the piston storage groove.

[0089] Specifically, piston vibration assembly 0641 is a conventional direct vibration feeder. Its bottom is connected to piston assembly bracket 0610 and its top is connected to piston transport rack 0642. This vibrates piston transport rack 0642, thereby driving the piston forward. Piston vibration plate 0643 is a conventional vibration plate that automatically sorts the pistons and delivers them to piston transport rack 0642. A 2-5mm gap is provided between piston vibration plate 0643 and piston transport rack 0642 to prevent vibration interference. Piston transport rack 0642 is equipped with two piston track grooves.

[0090] like Figure 12 and Figure 15 As shown, in a specific embodiment of the prefilled syringe assembly equipment provided by an embodiment of the present invention, the sleeve assembly assembly includes a sleeve placement assembly and a sleeve assembly assembly. The sleeve placement assembly is arranged outside the sleeve assembly station and is used to place the sleeve to be assembled; the sleeve assembly assembly includes a sleeve gripper 0832 and a sleeve drive assembly 0831. The power output end of the sleeve drive assembly 0831 is connected to the sleeve gripper 0832, and is used to drive the sleeve gripper 0832 to grab the push rod equipped with a metering ring and a piston from the sleeve assembly station and press it into the sleeve.

[0091] Specifically, the sleeve grippers 0832 correspond one-to-one to the elastic clamping positions on the clamping assembly 0210. In this embodiment, two sleeve grippers 0832 are provided to complete the assembly of two sleeves at one time.

[0092] Furthermore, more elastic clamping positions can be provided on the clamping assembly 0210, and the same number of sleeve grippers 0832 can be provided accordingly, so as to complete the assembly of multiple sleeves at one time.

[0093] like Figure 8 and Figure 12 As shown, in a specific embodiment of the prefilled syringe assembly device provided by an embodiment of the present invention, the sleeve assembly component also includes a sleeve assembly bracket 0810 and a sleeve transport component, and the sleeve assembly bracket 0810 is fixedly arranged; the sleeve transport component is used to transport the sleeve to the sleeve placement component.

[0094] Among them, the sleeve transport assembly includes a sleeve loading rack 0841 and a sleeve vibration plate 0842. The sleeve loading rack 0841 is connected to the sleeve assembly bracket 0810. The sleeve loading rack 0841 is provided with a sleeve loading track groove, and the sleeve is suitable for sliding along the sleeve loading track groove; the sleeve vibration plate 0842 is docked with the sleeve loading rack 0841 to transport the sleeve to the sleeve loading rack 0841.

[0095] It should be noted that the sleeve loading rack 0841 is equipped with two parallel plates or rods spaced apart. The space between the plates or rods is the sleeve loading track groove. The sleeve body is placed in the sleeve loading track groove, and the wings on both sides of the sleeve top are mounted on the sleeve loading rack 0841. The sleeve vibrating plate 0842 is a conventional vibrating plate that can automatically sort the sleeves and send them to the sleeve transport rack.

[0096] like Figure 12 As shown, in a specific embodiment of the prefilled syringe assembly device provided by an embodiment of the present invention, the sleeve assembly assembly also includes a second positioning assembly, the second positioning assembly includes two second positioning frames 0851 and a second positioning drive assembly 0852, and the two second positioning frames 0851 are provided with a second positioning half hole on the opposite side to form a second positioning hole, and the second positioning hole is coaxial with the sleeve on the lower side, and is used to make the push rod coaxial with the sleeve; the power output end of the second positioning drive assembly 0852 is connected to the two second positioning frames 0851, and is used to drive the two second positioning frames 0851 to move toward or away from each other.

[0097] Specifically, a second positioning hole is provided on the second positioning frame 0851, and each second positioning component positions a push rod; the second positioning drive component 0852 is a 180-degree pneumatic finger cylinder, also known as a 180-degree opening and closing type clamp, and can also be replaced by a pneumatic finger cylinder, two cylinders, a hydraulic cylinder, an electric clamp, etc., which can drive the two second positioning frames 0851 to move toward or away from each other.

[0098] When multiple push rods are assembled at the same time, multiple second positioning assemblies can be provided to position the push rods respectively; multiple second positioning half holes can also be provided on the second positioning frame 0851 to position the multiple push rods.

[0099] like Figure 12As shown, in a specific embodiment of the prefilled syringe assembly device provided by an embodiment of the present invention, the sleeve placement assembly includes a storage turntable 0821, a turntable drive assembly and a retaining ring 0822, the storage turntable 0821 is rotatably matched with the sleeve assembly bracket 0810, and the storage turntable 0821 is provided with a plurality of sleeve placement grooves along the circumference; the storage turntable 0821 is provided with a loading position and an unloading position on the side along the circumference, and the sleeve loading rack 0841 is provided at the loading position and docked with the sleeve placement groove at the loading position on the storage turntable 0821; the turntable drive assembly is connected to the sleeve assembly bracket 0810, and the power output end is connected to the storage turntable 0821, so as to drive the storage turntable 0821 to rotate intermittently; the retaining ring 0822 is arranged around the outside of the storage turntable 0821, and is fixedly connected to the sleeve assembly bracket 0810, so as to cooperate with the sleeve placement groove to form a closed groove; the retaining ring 0822 is provided with a notch, and the loading position and the unloading position are both provided in the notch; Among them, the sleeve loading rack 0841 is arranged to be tilted upward away from the side of the storage turntable 0821.

[0100] Specifically, the sleeve placement groove on the storage turntable 0821 is a U-shaped groove and is closed by a retaining ring 0822.

[0101] like Figure 12 As shown, in a specific embodiment of the prefilled syringe assembly equipment provided by an embodiment of the present invention, the sleeve transport assembly also includes a sleeve unloading rack 0843, the sleeve unloading rack 0843 is arranged at the unloading position, and is provided with a unloading track groove, one end of the sleeve unloading rack 0843 is arranged on the lower side of the storage turntable 0821, for receiving the sleeve on the storage turntable 0821, and the other end is arranged to be tilted downward.

[0102] It should be noted that during operation, the sleeve is transported to the sleeve loading rack 0841 by the vibrating disk, and slides along the sleeve loading rack 0841 to the loading position on the side of the storage turntable 0821. Whenever the sleeve placement groove is aligned with the loading track groove, the sleeve automatically slides into the sleeve placement groove and rotates with the storage turntable 0821 to the sleeve assembly station; during this process, the sleeve drive assembly 0831 drives the sleeve gripper 0832 to grab the push rod in the clamping assembly 0210, and moves to the upper side of the sleeve at the sleeve assembly station; then the push rod is pressed into the sleeve to complete the assembly of the syringe; then, the storage turntable 0821 continues to rotate, driving the transferred syringe to the unloading position, and the syringe slides along the unloading track groove to the next process.

[0103] like Figure 12 As shown, in a specific embodiment of the prefilled syringe assembly device provided in an embodiment of the present invention, the sleeve transport assembly also includes a sleeve stopper 0860, which is arranged at the end of the sleeve loading rack 0841, and the end of the sleeve stopper 0860 is suitable for extending into the sleeve or being placed on the outside of the sleeve to prevent the sleeve from moving toward the storage turntable 0821.

[0104] Specifically, the sleeve stopper 0860 is a cylinder, and can also be a device such as a hydraulic cylinder, an electric push rod, etc. that can output axial displacement. When it is necessary to stop the sleeve from moving downward, the cylinder piston rod extends to block the sleeve.

[0105] like Figure 15 As shown, in a specific implementation of the prefilled syringe assembly device provided in an embodiment of the present invention, the sleeve gripper 0832 is a negative pressure suction cup, which is used to absorb the top of the push rod and grasp the push rod.

[0106] It should be noted that the negative pressure suction cup is an existing device, which is used to grab the push rod by sucking the top of the push rod through negative pressure.

[0107] In addition, the sleeve gripper 0832 can also be an existing pneumatic clamp, electric clamp, or other device that can clamp the top of the push rod.

[0108] It should be noted that the quantitative ring drive assembly 0350, the rejection drive assembly 0510, the first push rod drive assembly 0430 and the sleeve drive assembly 0831 all include a fixed mounting frame, a first sliding frame, a second sliding frame, a transverse drive assembly and a longitudinal drive assembly. The first sliding frame is slidably matched with the fixed mounting frame and has the freedom of transverse sliding; the second sliding frame is slidably matched with the first sliding frame and has the freedom of sliding in the vertical direction relative to the first sliding frame; the transverse drive assembly is fixedly connected to the fixed mounting frame, and the power output end is connected to the first sliding frame to drive the first sliding frame to move transversely; the longitudinal drive assembly is fixedly connected to the first sliding frame, and the power output end is connected to the second sliding frame to drive the second sliding frame to slide in the vertical direction relative to the first sliding frame.

[0109] Among them, the second sliding frame is the power output end of the quantitative ring drive assembly 0350, the rejection drive assembly 0510, the first push rod drive assembly 0430 and the sleeve drive assembly 0831; the horizontal drive assembly and the longitudinal drive assembly are cylinders, and can also be hydraulic cylinders, electric push rods, etc.

[0110] In addition, the quantitative ring drive assembly 0350, the rejection drive assembly 0510, the first push rod drive assembly 0430 and the sleeve drive assembly 0831 can also be existing robotic arms.

[0111] At the same time, a method for assembling a prefilled syringe based on the above-mentioned assembly device is provided, comprising the following steps: S01, transporting the quantitative ring to the quantitative ring loading station, and loading the quantitative ring into the clamping assembly at the quantitative ring loading station; S02, transporting the push rod to the push rod assembly station, the assembly turntable drives the clamping assembly equipped with the quantitative ring to move to the push rod assembly station, and the push rod is installed in the quantitative ring; S03, transporting the sleeve to the sleeve assembly station, the assembly turntable drives the push rod and the metering ring clamping assembly to the piston assembly station, and the piston is installed on the push rod; S04, the assembly turntable drives the clamping assembly equipped with the piston, push rod and metering ring to move to the sleeve assembly station, and the push rod equipped with the piston and metering ring is removed from the clamping assembly and pushed into the sleeve, completing the assembly of a syringe; S05, the assembly turntable drives the empty clamping components to the quantitative ring loading station, and the cycle repeats.

[0112] It should be noted that the assembly turntable is provided with multiple clamping assemblies so that each process can be carried out synchronously to improve assembly efficiency; the clamping assemblies clamp one, two or more quantitative rings side by side in sequence; and the assembly of the push rod and the piston is completed synchronously.

[0113] Step S02 includes: S02.1. The push rod is transported to the push rod assembly station. The assembly turntable drives the clamping assembly equipped with the metering ring to move to the push rod assembly station. S02.2. Clamp the push rod to the upper side of the quantitative ring, coaxial with the quantitative ring; S02.3. Press down and rotate the push rod to screw it into the quantitative ring; S02.4, check whether the quantitative ring is screwed to the preset position of the push rod, and remove the push rod that is not screwed to the preset position of the push rod.

[0114] It should be noted that after the quantitative ring is screwed to the preset position of the push rod, the rotation of the push rod is stopped; and if it is not detected that the quantitative ring is not screwed to the preset position of the push rod within the preset time, it is considered that the push rod is not accurately screwed into the quantitative ring. After that, the push rod is discarded to ensure the quality of the finished product.

[0115] Specifically, the preset time is set based on experience and actual conditions. In this embodiment, the preset time is 1 second.

[0116] Step S03 includes: S03.1. Transport the piston to the piston assembly station. The assembly turntable drives the push rod and metering ring clamping assembly to the piston assembly station. S03.2. Press the top of the push rod to prevent it from moving and insert the piston from the underside of the push rod to the bottom of the push rod; S03.3, detect whether the piston is inserted into the bottom of the push rod, and alarm when it is detected that the piston is not inserted into the bottom of the push rod to ensure the quality of the finished product.

[0117] Furthermore, in step S02.3, the quantitative ring is screwed to the middle of the push rod; Step S03 also includes: S03.4, turn forward to the preset angle, press down and rotate the push rod again, and screw the quantitative ring to the top of the push rod.

[0118] It should be noted that by screwing the quantitative ring to the top of the push rod twice at two positions, the push rod can be screwed at two positions at the same time, which effectively reduces the assembly time and improves the assembly efficiency.

[0119] Furthermore, step S03 further includes: S03.5, the detection ring is screwed to the top of the push rod, and an alarm is issued when the detection ring is not screwed to the top of the push rod to effectively ensure product quality.

[0120] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A prefilled syringe assembly device, characterized in that: include: The assembly turntable is intermittently rotated, and the circumference of the assembly turntable is provided with a metering ring loading station, a push rod assembly station, a piston assembly station and a sleeve assembly station; A clamping assembly is fixedly connected to the assembly turntable and is used to clamp the quantitative ring; the assembly turntable drives the clamping assembly to clamp the quantitative ring and sequentially pass through the quantitative ring loading station, the push rod assembly station, the piston assembly station and the sleeve assembly station to complete the loading of the quantitative ring and the assembly of the push rod, piston and sleeve; A quantitative ring loading assembly is provided at the quantitative ring loading station and is used to place a quantitative ring into the clamping assembly located at the quantitative ring loading station; A push rod assembly component is provided at the push rod assembly station and is used to install the push rod into the quantitative ring in the clamping component located at the push rod assembly station; a piston assembly component, provided at the piston assembly station, for assembling the piston onto the push rod on the clamping component located at the piston assembly station; and The sleeve assembly component is arranged at the sleeve assembly station and is used for removing the push rod located at the sleeve assembly station from the clamping component and installing it into the sleeve.

2. The prefilled syringe assembly equipment according to claim 1, characterized in that: The assembly turntable comprises a rotating disk body (0101) and a fixing frame (0102), wherein the rotating disk body (0101) is arranged to rotate intermittently, the fixing frame (0102) is arranged on the upper side of the rotating disk body (0101) and is spaced apart from the rotating disk body (0101), and the rotating disk body (0101) is provided with a plurality of the clamping assemblies (0210) spaced apart along the circumference, and the clamping assemblies (0210) are fixedly connected to the rotating disk body (0101); The assembly turntable also includes: Rack (0103), fixed setting; and A cam divider (0104) is connected to the frame (0103), the cam divider (0104) is provided with an inner ring and an outer ring, the inner ring is fixed, and the outer ring is used to output power; The rotating disc (0101) is connected to the inner ring of the cam divider (0104), and the fixed frame (0102) is connected to the outer ring of the cam divider (0104).

3. The prefilled syringe assembly equipment according to claim 2, characterized in that: Also includes: at least two releasing assemblies (0220), the quantitative ring loading station and the sleeve assembly station both being provided with the releasing assemblies (0220), the releasing assemblies (0220) being connected to the fixing frame (0102) and being used to enable the clamping assembly (0210) to release the quantitative ring; The clamping assembly (0210) comprises: A fixed block (0211) is fixedly mounted on the assembly turntable, with a plurality of first half holes provided on one side, first half grooves provided on both sides of the first half holes, and the first half grooves are connected to the first half holes; A movable block (0212) is provided on one side of the fixed block (0211); a plurality of second half holes are provided on the side of the movable block (0212) facing the fixed block (0211); second half slots are provided on both sides of the second half holes; the second half holes correspond to and are aligned with the first half holes one-to-one to form elastic clamping positions; the second half slots correspond to and are aligned with the first half slots one-to-one to form avoidance slots; A plurality of guide rods (0213) are arranged in parallel and spaced apart on a side of the movable block (0212) facing the fixed block (0211), each guide rod (0213) passes through the fixed block (0211) and is slidably engaged with the fixed block (0211); one end of the guide rod (0213) is connected to the movable block (0212), and the other end is provided with a stop block; and A plurality of return springs (0214) are arranged on a side of the fixed block (0211) facing away from the movable block (0212), corresponding one to one with the guide rod (0213) and sleeved on the guide rod (0213), one end of the return spring (0214) abutting against the fixed block (0211), and the other end abutting against the stop block; The release assembly (0220) comprises: A release cylinder (0221) fixedly connected to the fixing frame (0102); and The release frame (0222) is connected to the power output end of the release cylinder (0221) and is used to push the guide rod (0213).

4. The prefilled syringe assembly equipment according to claim 1, characterized in that: The quantitative ring feeding assembly comprises: A sample ring placement assembly for placing the sample ring to be assembled; and A quantitative ring assembly component comprises a quantitative ring gripper (0340) and a quantitative ring drive component (0350), wherein a power output end of the quantitative ring drive component (0350) is connected to the quantitative ring gripper (0340) and is used to drive the quantitative ring gripper (0340) to grab the quantitative ring from the quantitative ring placement component and place it into the clamping component located at the quantitative ring loading station.

5. The prefilled syringe assembly equipment according to claim 4, characterized in that: The quantitative ring feeding assembly further includes: A quantitative loop assembly bracket (0310), fixedly arranged; and The quantitative ring transport component is used to transport the quantitative ring to the quantitative ring placement component; Wherein, the quantitative loop transport component includes: A quantitative ring vibration component (0321) is connected to the quantitative ring assembly bracket (0310); A quantitative ring transport frame (0322) is connected to the vibration assembly, the quantitative ring transport frame (0322) is provided with a plurality of quantitative ring track grooves, the quantitative ring is suitable for sliding along the quantitative ring track grooves, and the quantitative ring vibration assembly (0321) is used to drive the quantitative ring transport frame (0322) to vibrate; and The quantitative ring vibration plate (0323) is docked with the quantitative ring transport rack (0322) and is used to transport the quantitative ring to the quantitative ring transport rack (0322).

6. The prefilled syringe assembly equipment according to claim 5, characterized in that: The quantitative loop placement component includes: A quantitative ring placement rack (0331) is slidably matched with the quantitative ring assembly bracket (0310), is arranged at the end of the quantitative ring track groove, and has the freedom to slide in a direction perpendicular to the conveying direction of the end of the quantitative ring track groove; the quantitative ring placement rack (0331) is provided with a plurality of quantitative ring storage slots on one side facing the quantitative ring track groove; the quantitative ring storage slots correspond to the quantitative ring track grooves one by one, and when the quantitative ring storage slots are aligned with the quantitative ring track grooves, the quantitative ring in the quantitative ring track groove slides into the quantitative ring storage slots; and The quantitative ring dislocation driving component (0332) is connected to the quantitative ring assembly bracket (0310), and the power output end is connected to the quantitative ring placement rack (0331) to drive the quantitative ring placement rack (0331) to slide along the quantitative ring assembly bracket (0310).

7. The prefilled syringe assembly equipment according to claim 3, characterized in that: The push rod assembly comprises: The first push rod assembly bracket (0410) is fixedly arranged; A push rod placement assembly is provided outside the push rod assembly station and is used to store the push rods to be assembled; A first push rod driving assembly (0430) connected to the first push rod assembly bracket (0410); and A push rod assembly assembly is connected to the power output end of the first push rod drive assembly (0430) and is used to move between the push rod placement assembly and the quantitative ring located at the push rod assembly station under the drive of the first push rod drive assembly (0430). The push rod assembly assembly is provided with a rotating clamping assembly (0441) for clamping the push rod and driving the push rod to rotate.

8. The prefilled syringe assembly equipment according to claim 7, characterized in that: The push rod assembly assembly also includes a push rod transport assembly; the push rod transport assembly includes: A push rod vibration assembly (0451) connected to the first push rod assembly bracket (0410); A push rod transport frame (0452) is connected to the vibration assembly, the push rod transport frame (0452) is provided with a plurality of push rod track grooves, the upper end of the push rod is clamped in the push rod track grooves and is suitable for sliding along the push rod track grooves, and the push rod vibration assembly (0451) is used to drive the push rod transport frame (0452) to vibrate; and A push rod vibration plate (0453) is docked with the push rod transport rack (0452) and is used to transport the push rods to the push rod transport rack (0452); The push rod placement assembly includes: A push rod placement rack (0421) is provided at the end of the push rod track groove and fixed to the first push rod assembly bracket (0410). The push rod placement rack (0421) is provided with a plurality of push rod storage slots on one side facing the push rod track groove; the push rod storage slots correspond to and are aligned with the push rod track grooves one by one, and the push rods in the push rod track grooves slide into the push rod storage slots; and A push rod pushing drive assembly (0422) is provided on the lower side of the push rod placement rack (0421) and is used to push the push rod in the push rod placement rack (0421) upward.

9. The prefilled syringe assembly equipment according to claim 7, characterized in that: The push rod assembly further comprises: A push rod assembly frame (0442) is connected to the first push rod drive assembly (0430) or the power output end of the first push rod drive assembly (0430), and is used to move under the drive of the first push rod drive assembly (0430); A push rod buffer frame (0443) is slidably matched with the push rod assembly frame (0442) and has the freedom to slide up and down relative to the push rod assembly frame (0442); A plurality of buffer components are provided between the push rod assembly frame (0442) and the push rod buffer frame (0443); the buffer components include a limit rod (0444) and a buffer spring (0445); the limit rod (0444) passes through the push rod buffer frame (0443), and its two ends are connected to the push rod assembly frame (0442); the buffer spring (0445) is sleeved on the limit rod (0444), and its two ends are respectively in contact with the push rod assembly frame (0442) and the push rod buffer frame (0443); Wherein, the rotating clamping assembly (0441) is connected to the push rod buffer frame (0443).

10. The prefilled syringe assembly equipment according to claim 9, characterized in that: The push rod assembly further includes a first positioning assembly, the first positioning assembly including: Two first positioning frames (0461) are each provided with a first positioning half hole on one opposite side to form a first positioning hole, wherein the first positioning hole is coaxial with the quantitative ring on the lower side and is used to make the push rod coaxial with the quantitative ring; A first positioning drive assembly (0462), whose power output end is connected to the two first positioning frames (0461), and is used to drive the two first positioning frames (0461) to move toward or away from each other; The push rod assembly assembly includes two push rod assembly assemblies and further includes: A second push rod assembly bracket (0710) is fixedly arranged between the piston assembly station and the sleeve assembly station; and A second push rod driving assembly (0720) is connected to the second push rod assembly bracket (0710); The two push rod assembly components are respectively connected to the power output ends of the first push rod drive component (0430) and the second push rod drive component (0720); the second push rod drive component (0720) is used to drive the push rod assembly component to move up and down.

11. The prefilled syringe assembly equipment according to claim 10, wherein: Also includes: A first push rod detection assembly is provided at the push rod assembly station, and is used to detect whether the push rod is assembled in place; A rejection assembly is provided between the push rod assembly station and the piston assembly station. The rejection assembly is provided at the push rod rejection station and is used to reject push rods that are not assembled in place. The clamping assembly comprises three release assemblies (0220), and the three release assemblies (0220) are respectively arranged at the quantitative ring loading station, the push rod rejection station and the sleeve assembly station; The first push rod detection component includes: A first photoelectric sensor (0471) is fixedly connected to the push rod assembly frame (0442); and A first sensing block (0472) is fixedly connected to the push rod buffer frame (0443); The rejection component includes: Rejection gripper (0520) for holding the push rod; and A rejection drive assembly (0510), used to drive the rejection gripper (0520) to move; The push rod assembly assembly further comprises a second push rod detection assembly, which is arranged between the second push rod assembly bracket (0710) and the sleeve assembly assembly and is used to detect whether the push rod is assembled in place; The second push rod detection component includes: A second detection bracket (0731), fixedly arranged; and The second photoelectric sensor (0732) is arranged on the upper side of the push rod and is connected to the second detection bracket (0731).

12. The prefilled syringe assembly equipment according to claim 1, wherein: The piston assembly comprises: A piston placement rack (0620), located outside the piston assembly station, for storing the pistons to be assembled; and The piston assembly assembly includes a push rod pushing member (0631) and a piston pushing assembly (0632), wherein the push rod pushing member (0631) is arranged on the upper side of the assembly turntable and is suitable for abutting against the top of the push rod; the piston pushing assembly (0632) is arranged on the lower side of the piston placement frame (0620) and is used to push the piston placement assembly upward.

13. The prefilled syringe assembly equipment according to claim 1, wherein: It also includes a piston detection component, which is arranged between the piston assembly station and the sleeve assembly station; the piston detection component includes a third detection bracket (0651) and a third photoelectric sensor (0652), the third detection bracket (0651) is fixedly arranged, and the third photoelectric sensor (0652) is arranged on the lower side of the assembly turntable and connected to the third detection, and is used to detect whether the piston is installed in the lower end of the push rod.

14. The prefilled syringe assembly equipment according to claim 12, wherein: The piston assembly component further comprises a piston assembly bracket (0610) and a piston transport component, wherein the piston assembly bracket (0610) is fixedly arranged; The piston transport assembly comprises: A piston vibration assembly (0641) is connected to the piston assembly bracket (0610); A piston transport frame (0642) is connected to the vibration assembly, wherein the piston transport frame (0642) is provided with a plurality of piston track grooves, the piston being adapted to slide along the piston track grooves, and the piston vibration assembly (0641) is used to drive the piston transport frame (0642) to vibrate; and A piston vibrating plate (0643) is docked with the piston transport rack (0642) and is used to transport the piston to the piston transport rack (0642); Wherein, the piston placement rack (0620) is arranged at the end of the piston track groove and is connected to the power output end of the piston pushing assembly (0632). The piston placement rack (0620) is provided with a plurality of piston storage grooves on the side facing the piston track groove; the piston storage grooves correspond to and are aligned with the piston track grooves one by one, and the pistons in the piston track grooves slide into the piston storage grooves.

15. The prefilled syringe assembly equipment according to claim 1, wherein: The sleeve assembly comprises: a sleeve placement assembly, disposed outside the sleeve assembly station and used for placing the sleeve to be assembled; and A sleeve assembly component comprises a sleeve gripper (0832) and a sleeve drive component (0831), wherein the power output end of the sleeve drive component (0831) is connected to the sleeve gripper (0832) and is used to drive the sleeve gripper (0832) to grab the push rod equipped with the metering ring and the piston from the sleeve assembly station and press it into the sleeve.

16. The prefilled syringe assembly equipment according to claim 15, wherein: The sleeve assembly also includes: Sleeve assembly bracket (0810), fixed setting; and a sleeve transport assembly, used for transporting the sleeve to the sleeve placement assembly; Wherein, the sleeve transport assembly includes: A sleeve loading rack (0841) is connected to the sleeve assembly bracket (0810), wherein the sleeve loading rack (0841) is provided with a sleeve loading track groove, and the sleeve is adapted to slide along the sleeve loading track groove; and The sleeve vibrating plate (0842) is docked with the sleeve loading rack (0841) and is used to transport the sleeve to the sleeve loading rack (0841).

17. The prefilled syringe assembly equipment according to claim 15, wherein: The sleeve assembly assembly further includes a second positioning assembly, the second positioning assembly including: Two second positioning frames (0851) are each provided with a second positioning half hole on the opposite side to form a second positioning hole, wherein the second positioning hole is coaxial with the sleeve on the lower side and is used to make the push rod coaxial with the sleeve; The second positioning drive assembly (0852) has a power output end connected to the two second positioning frames (0851) and is used to drive the two second positioning frames (0851) to move toward or away from each other.

18. The prefilled syringe assembly equipment according to claim 16, wherein: The sleeve placement assembly includes: A storage turntable (0821) is rotatably matched with the sleeve assembly bracket (0810), and the storage turntable (0821) is provided with a plurality of sleeve placement grooves along its circumference; the storage turntable (0821) is provided with a loading position and an unloading position on its side along the circumference, and the sleeve loading rack (0841) is provided at the loading position and docked with the sleeve placement groove on the storage turntable (0821) located at the loading position; A turntable drive assembly is connected to the sleeve assembly bracket (0810), and a power output end is connected to the storage turntable (0821), and is used to drive the storage turntable (0821) to rotate intermittently; A retaining ring (0822) is arranged around the outside of the storage turntable (0821) and is fixedly connected to the sleeve assembly bracket (0810) to form a closed groove in cooperation with the sleeve placement groove; the retaining ring (0822) is provided with a notch, and the loading position and the unloading position are both located in the notch; Wherein, the sleeve loading rack (0841) is arranged to be tilted upwards away from the storage turntable (0821); The sleeve transport assembly also includes a sleeve unloading rack (0843), which is arranged at the unloading position and is provided with a unloading track groove. One end of the sleeve unloading rack (0843) is arranged on the lower side of the storage turntable (0821) for receiving the sleeve on the storage turntable (0821), and the other end is arranged to be tilted downward.

19. The prefilled syringe assembly device according to claim 18, wherein: The sleeve transport assembly also includes a sleeve stopper (0860), which is arranged at the end of the sleeve loading rack (0841). The end of the sleeve stopper (0860) is suitable for extending into the sleeve or being placed outside the sleeve to prevent the sleeve from moving toward the storage turntable (0821).

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