Syringe push rod clamping jaw device

Abstract

The injector push rod clamping jaw device comprises a mounting plate, a moving assembly and a clamping jaw, and the mounting plate is of a plate-shaped structure; the moving assembly is arranged on the mounting plate and can apply downward thrust to the push rod; the clamping jaw is connected with the mounting plate, and the clamping jaw is suitable for clamping the injector push rod and can provide a damping effect in the moving process of the injector push rod. The moving assembly and the clamping jaw are arranged to work in a matched mode, pushing and pressing of the injector push rod are facilitated, the accuracy rate of injecting the injector push rod into a needle tube is improved, force application is more uniform, and the qualified rate of the device is increased.

Description

Technical Field

[0001] This application relates to the field of mechanical equipment technology, and in particular to a syringe plunger gripper device. Background Technology

[0002] Prefilled syringes are an advanced medical packaging technology that allows medications to be pre-filled into syringes under sterile conditions, reducing preparation time for healthcare personnel during injection and improving medication safety. This technology is particularly suitable for emergency situations requiring rapid drug administration, and for medications that demand extremely high sterility, such as biologics.

[0003] With the development of medical technology and the increasing aging of the population, the demand for pre-filled syringes is indeed growing. Ensuring the quality and performance of syringes during the manufacturing process is crucial, including the correct installation of the plunger. The plunger is a key component of the syringe, and its precise fit with the needle must ensure smooth drug injection.

[0004] Twist-on labeling machines are devices used on automated production lines to affix labels to syringes. As production capacity increases, the demands on the speed and efficiency of twist-on labeling machines also increase. However, improper force control during push-bar installation can lead to the push-bar not being properly tightened or being damaged. Utility Model Content

[0005] In view of this, this application proposes a syringe plunger gripper device to ensure the force of the plunger being pushed down.

[0006] According to one aspect of this application, a syringe plunger device is provided, including a mounting plate, a movable component, and a gripper;

[0007] The mounting plate has a plate-like structure;

[0008] The movable component is mounted on the mounting plate and is capable of applying a downward thrust to the syringe plunger.

[0009] The gripper is connected to the mounting plate and is adapted to grip the syringe plunger and provide damping during the movement of the syringe plunger.

[0010] In one possible implementation, the moving component includes a connecting block, a compression spring, and a guide post;

[0011] The compression spring and guide post are respectively placed vertically, the connecting block is located above the guide post, the guide post can move up and down relative to the mounting plate under the action of the connecting block, and the compression spring abuts against the connecting block;

[0012] The guide post includes a first guide post and a second guide post, which are equidistantly arranged on both sides of the compression spring. The compression spring, the first guide post, and the second guide post are disposed inside the mounting plate. The guide post can drive the syringe plunger to move downward through the compression spring.

[0013] In one possible implementation, the mounting plate has a first through hole, a second through hole, and a mounting groove inside;

[0014] The first through hole and the second through hole are vertically parallel, and the mounting groove is located between the first through hole and the second through hole, and is vertically parallel to the first through hole and the second through hole; the first through hole is configured to receive the first guide post, the second through hole is configured to receive the second guide post, and the mounting groove is configured to receive the compression spring.

[0015] In one possible implementation, a nut is provided on the mounting plate; the nut is engaged between the mounting groove and the mounting plate to secure the compression spring.

[0016] In one possible implementation, the device further includes a push rod, a fixed block, a slide rail slider, a pressure plate, a fixed plate, a connecting block, and a connecting column;

[0017] The pressure plate is installed at the bottom of the second guide post, and a push rod is provided on the pressure plate. The fixing block is fixed to the top of the first guide post, the compression spring and the second guide post. The connecting block, the fixing plate and the slide rail slider are sequentially fixed to the mounting plate. The connecting post vertically penetrates the connecting block.

[0018] In one possible implementation, the fixing block has three mounting slots inside; the mounting slots are used to fix the first guide post, the second guide post, and the compression spring.

[0019] In one possible implementation, a spring is installed at the top of the connecting post, and a gripper is installed at the bottom of the connecting post.

[0020] In one possible implementation, the gripper includes a first gripper and a second gripper; the first gripper and the second gripper engage to grip the syringe plunger.

[0021] In one possible implementation, the guide post can move vertically up and down via a fixed block as the compression spring contracts.

[0022] In one possible implementation, the fixed plate can move up and down in the vertical direction via a slide rail slider.

[0023] The beneficial effects of this application are: by setting the moving component and the gripper to work together, it helps to push the syringe plunger, improves the accuracy of the syringe plunger injecting into the needle tube, makes the applied force more uniform, and improves the pass rate of the device.

[0024] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0026] Figure 1 This is a subjective structural diagram of a syringe plunger gripper device according to an embodiment of this application;

[0027] Figure 2 This is a front view structural diagram of a syringe plunger gripper device according to an embodiment of this application;

[0028] Figure 3 This paper shows a side view of a syringe plunger gripper device according to an embodiment of the present application.

[0029] Figure 4 Show Figure 2 Cross-sectional view.

[0030] The components are as follows: 1. Needle tube; 2. Press rod; 3. Fixing block; 4. Slide rail slider; 5. Gripper; 5.1. First gripper; 5.2. Second gripper; 6. Mounting plate; 7. Compression spring; 8. Guide post; 8.1. First guide post; 8.2. Second guide post; 9. Pressure plate; 10. Fixing plate; 11. Connecting block; 12. Connecting post. Detailed Implementation

[0031] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0032] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application or to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0035] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0036] Example 1

[0037] like Figures 1 to 4 As shown, this utility model provides a syringe plunger gripper device, including: a pressure plunger 2, a fixing block 3, a slide rail slider 4, a gripper 5, a mounting plate 6, a moving component, a pressure plate 9, a fixing plate 10, a connecting block 11, and a connecting post 12;

[0038] The movable component includes a connecting block 12, a compression spring 7, and a guide post 8; the mounting plate has a plate-like structure.

[0039] The movable component is mounted on the mounting plate 6 and is capable of applying a downward thrust to the syringe plunger; the gripper 5 is connected to the mounting plate 6 and is adapted to grip the syringe plunger and provide damping during the movement of the syringe plunger.

[0040] The compression spring 7 and the guide post 8 are respectively placed vertically, the connecting block 11 is located above the guide post 8, the guide post 8 can move up and down relative to the mounting plate 6 under the drive of the connecting block 11, and the compression spring 7 abuts against the connecting block 11;

[0041] The guide post 8 includes a first guide post 8.1 and a second guide post 8.2. The first guide post 8.1 and the second guide post 8.2 are equidistantly arranged on both sides of the compression spring 7. The compression spring 7, the first guide post 8.1 and the second guide post 8.2 are arranged inside the mounting plate 6. The guide post 8 can drive the syringe plunger to move downward through the compression spring 7.

[0042] The mounting plate 6 has a first through hole, a second through hole, and a mounting groove inside; the first through hole and the second through hole are vertically parallel, and the mounting groove is located between the first through hole and the second through hole and is vertically parallel to the first through hole and the second through hole; the first through hole is configured to receive the first guide post 8.1, the second through hole is configured to receive the second guide post 8.2, and the mounting groove is configured to receive the compression spring 7.

[0043] The pressure plate 9 is installed at the bottom end of the second guide post 8.2. The pressure plate 9 is provided with a push rod 2. The fixing block 3 is fixed to the top of the first guide post 8.1, the compression spring 7, and the second guide post 8.2. The connecting block 11, the fixing plate 10, and the slide rail slider 4 are sequentially fixed to the mounting plate 6. The connecting post 12 vertically penetrates the connecting block 11. The fixing block 10 has three mounting slots inside. The mounting slots are used to fix the first guide post 8.1, the second guide post 8.2, and the compression spring 7. A spring is installed at the top of the connecting post 12, and a clamp 5 is installed at the bottom of the connecting post 12.

[0044] Furthermore, the gripper 5 includes a first gripper 5.1 and a second gripper 5.2; the first gripper 5.1 and the second gripper 5.2 engage to grip the syringe plunger.

[0045] The guide post 8 can move up and down in the vertical direction via the fixed block 3 as the compression spring 7 contracts; the fixed plate 10 can move up and down in the vertical direction via the slide rail slider 4.

[0046] Example 2

[0047] According to Embodiment 1, the working process of the syringe plunger gripper device is as follows: the gripper clamps the syringe plunger by snapping it in place. When the fixing block is pressed down, the fixing block and the mounting plate, along with the guide post, drive the pressure plate to move. The pressure plate and the plunger move downwards in the vertical direction, and the syringe plunger is injected into the needle tube at a constant speed. After the syringe plunger enters the needle tube, the gripper releases. At this time, according to the elastic action of the compression spring, it returns to its initial state at a constant speed. The guide post drives the pressure plate to move, and the pressure plate and the plunger move upwards in the vertical direction.

[0048] When the syringe plunger assembly needs maintenance or disassembly, the fixing component can be removed via the slide rail slider; during installation, the fixing component can be installed along the direction of the slide rail slider.

[0049] It should be noted that although the syringe plunger device has been described above as an example, those skilled in the art will understand that this application is not limited thereto. In fact, users can flexibly set the parameters according to their personal preferences and / or actual application scenarios, as long as the design is reasonable.

[0050] Thus, through Embodiments 1 and 2, the syringe plunger gripper device according to the above embodiments of this application can achieve uniform motion of the plunger, making the applied force more uniform and improving the product qualification rate.

[0051] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A syringe plunger rod gripper device, characterized by, The device comprises a mounting plate, a moving assembly and a clamping jaw. The mounting plate is in a plate structure. The moving assembly is arranged on the mounting plate and can exert a downward pushing force on the syringe plunger. The clamping jaw is connected with the mounting plate and is suitable for clamping the syringe plunger and providing damping action during movement of the syringe plunger.

2. The syringe plunger rod gripper device of claim 1, wherein, The moving assembly comprises a connecting block, a compression spring and a guide column. The compression spring and the guide column are arranged vertically, the connecting block is above the guide column, the guide column can move up and down relative to the mounting plate under the driving of the connecting block, and the compression spring abuts against the connecting block. The guide column comprises a first guide column and a second guide column, the first guide column and the second guide column are equidistantly arranged on both sides of the compression spring, the compression spring, the first guide column and the second guide column are arranged inside the mounting plate, and the guide column can drive the syringe plunger to move downward through the compression spring.

3. The syringe plunger rod gripper device of claim 2, wherein, The mounting plate is internally provided with a first through hole, a second through hole and a mounting groove. The first through hole and the second through hole are vertically parallel, the mounting groove is between the first through hole and the second through hole and is vertically parallel to the first through hole and the second through hole, the first through hole is configured to receive the first guide column, the second through hole is configured to receive the second guide column, and the mounting groove is configured to receive the compression spring.

4. The syringe plunger rod gripper device of claim 2, wherein, A nut is arranged on the mounting plate, the nut is clamped between the mounting groove and the mounting plate, and is used for fixing the compression spring.

5. The syringe plunger rod gripper device of claim 1, wherein, The device further comprises a pressing plunger, a fixing block, a sliding rail sliding block, a pressing plate, a fixing plate, a connecting block and a connecting column. The pressing plate is arranged at the bottom end of the second guide column, the pressing plunger is arranged on the pressing plate, the fixing block is fixed at the top end of the first guide column, the compression spring and the second guide column, the connecting block, the fixing plate and the sliding rail sliding block are sequentially fixedly connected with the mounting plate, and the connecting column vertically penetrates through the connecting block.

6. The syringe plunger rod gripper device of claim 5, wherein, The fixing block is internally provided with three mounting grooves, and the mounting grooves are used for fixing the first guide column, the second guide column and the compression spring.

7. The syringe plunger rod gripper device of claim 5, wherein, A spring is arranged at the top end of the connecting column, and a clamping jaw is arranged at the bottom end of the connecting column.

8. The syringe plunger rod gripper device of claim 1, wherein, The clamping jaw comprises a first jaw and a second jaw, and the first jaw and the second jaw are clamped for clamping the syringe plunger.

9. The syringe plunger rod gripper device of claim 3, wherein, The guide column can move up and down along the vertical direction through the fixing block along with the contraction of the compression spring.

10. The syringe plunger rod gripper device of claim 5, wherein, The fixing plate can move up and down along the vertical direction through the sliding rail sliding block.

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