Multifunctional picking clamping jaw for assembling injection pen
By designing a multi-functional pick-up gripper, the structure of the injection pen assembly equipment was simplified, improving efficiency and convenience. This solved the problems of low production capacity and high cost of existing equipment, and enabled efficient and flexible injection pen assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING BOYUE PHARMACEUTICAL EQUIPMENT CO LTD
- Filing Date
- 2025-03-25
- Publication Date
- 2026-04-28
AI Technical Summary
Existing pen syringe and automated injection pen assembly equipment suffers from low capacity, large footprint, high cost, complex operation, and low convenience, making it difficult to meet the demands for high-efficiency production.
Design a multi-functional pick-up gripper for assembling injection pens, comprising a gripper mounting block, a pick-up and fixing mechanism, a pre-filled needle pick-up mechanism, an injection pen fixing mechanism, and a cap fixing mechanism. It uses internal tension to pick up the pre-filled needle, negative pressure to suck up the injection pen housing, and pneumatic gripper for fixing, simplifying the equipment structure.
It improves the assembly efficiency of injection pens, simplifies the assembly process, reduces equipment costs, enhances the flexibility and convenience of the equipment, and reduces the number of maintenance operations.
Smart Images
Figure CN224169144U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection pen assembly devices, and in particular to a multifunctional pick-up gripper for injection pen assembly. Background Technology
[0002] In recent years, with the rising prevalence of diabetes and obesity, GLP-1 inhibitors have received increasing attention globally as an innovative treatment approach. Simultaneously, to meet patients' growing need for convenience, a variety of innovative drug delivery systems have been developed, further promoting the widespread adoption of GLP-1 inhibitors. Products such as pen injectors and automated injection pens, with their convenient operation and efficient drug delivery experience, have become ideal choices for patients in home medication and daily management.
[0003] Therefore, how to perfectly assemble drugs with pen syringes or automatic injection pens is a problem that major pharmaceutical companies urgently need to solve. As a result, many pen syringe and automatic injection pen assembly machines have appeared on the market. However, these machines not only have low production capacity, but also occupy too much space, have many workstations, high costs, complicated operation, and low convenience.
[0004] While ensuring sufficient production capacity, this invention greatly optimizes the functional layout of the equipment, improves operability and convenience, and reduces equipment costs, which is urgently needed by major pharmaceutical companies. Therefore, this invention adopts a multi-functional structure to improve operating efficiency, reduce unnecessary mechanisms, and thus optimize the overall equipment structure. Utility Model Content
[0005] In view of the above-mentioned shortcomings of current injection pen assembly equipment, this utility model provides a multi-functional pick-up gripper for injection pen assembly, which can simplify the assembly equipment and improve efficiency.
[0006] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:
[0007] A multifunctional pickup gripper for assembling an injection pen includes a gripper mounting block and a pickup fixing mechanism. The gripper mounting block includes a main board and a quick-change mounting mechanism; the main board and the quick-change mounting mechanism are detachably fixed. The pickup fixing mechanism includes a pre-charge needle pickup mechanism, an injection pen fixing mechanism, and a cap fixing mechanism. The pre-charge needle pickup mechanism is mounted on the main board and includes a first air connector, a mounting rod, and a pre-charge needle pickup head. The injection pen fixing mechanism is mounted on the quick-change mounting mechanism and includes a second air connector and an actuator. The cap fixing mechanism is mounted on the quick-change mounting mechanism. The mounting rod is hollow inside. The first air connector is connected to the pre-charge needle pickup head through the mounting rod. The end of the pre-charge needle pickup head is closed. One end of the actuator is connected to the second air connector. The first air connector and the second air connector are connected to an external air source.
[0008] According to one aspect of this utility model, the quick-change installation mechanism is a clamping and fixing block; the actuator is an adsorption assembly; the cap fixing mechanism is a cap picking and fixing block; and the second air connector is connected to a negative pressure air source.
[0009] According to one aspect of this utility model, the quick-change installation mechanism is a quick-connect installation plate; the actuator is a pneumatic gripper; the cap fixing mechanism is a cap picking gripper; and the second air connector is connected to a positive pressure air source.
[0010] According to one aspect of this utility model, the motherboard is provided with a plurality of pre-charge needle pickup mechanisms; the first air circuit connector is connected to a positive pressure air source; the number of the injection pen fixing mechanism is the same as that of the pre-charge needle pickup mechanism and they correspond one-to-one.
[0011] According to one aspect of this utility model, the number of cap fixing mechanisms and injection pen fixing mechanisms are the same and correspond one-to-one.
[0012] According to one aspect of the present invention, the injection pen fixing mechanism further includes a limiting block.
[0013] According to one aspect of the present invention, the adsorption assembly includes a plurality of adsorption heads connected in parallel.
[0014] According to one aspect of this utility model, the number of adsorption heads is three.
[0015] According to one aspect of this utility model, the pre-charge needle pickup head is made of a flexible material.
[0016] Advantages of this utility model:
[0017] It features a variety of functions, including a pre-fill needle pickup mechanism, an injection pen fixing mechanism, and a cap pickup block. It can pick up the pre-fill needle using internal tension, fix the injection pen housing using negative pressure suction or pneumatic grippers, and fix the cap using the cap fixing mechanism. This simplifies the equipment, optimizes the injection pen assembly process, and improves efficiency. It is flexible in use, and the components of the grippers can be assembled and changed according to the assembly process and technology. It has a simple structure and is easy to maintain. Some air passages are inside the main board and the clamping and fixing block, and a sturdy mounting rod can be used as an air passage to reduce the number of exposed air tubes. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of a multifunctional pickup gripper for assembling an injection pen according to the present invention. Figure 1 ;
[0020] Figure 2 for Figure 1 A schematic cross-sectional view of line AA along the middle section;
[0021] Figure 3 This is a schematic diagram of the structure of a multifunctional pickup gripper for assembling an injection pen according to the present invention. Figure 2 ;
[0022] Figure 4 for Figure 3 A schematic cross-sectional view of the central line BB.
[0023] Illustrations: 1. Main board; 21. Clamping and fixing block; 22. Quick-connect mounting plate; 31. First air path connector; 32. Mounting rod; 33. Pre-charge needle pickup head; 41. Second air path connector; 421. Adsorption assembly; 422. Pneumatic gripper; 43. Limiting block; 51. Cap pickup and fixing block; 52. Cap pickup gripper. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Example 1
[0026] like Figure 1 and Figure 2 As shown, a multifunctional pickup gripper for assembling an injection pen includes a gripper mounting block and a pickup and fixing mechanism. The gripper mounting block includes a main board 1 and a clamping and fixing block 21. The pickup and fixing mechanism includes a pre-charge needle pickup mechanism, an injection pen fixing mechanism, and a cap pickup and fixing block 51. The pre-charge needle pickup mechanism is mounted on the main board 1 and includes a first gas path connector 31, a mounting rod 32, and a pre-charge needle pickup head 33. The injection pen fixing mechanism is mounted on the clamping and fixing block 21 and includes a second gas path connector 41 and an adsorption assembly 421. The first gas path connector 31 is connected to the pre-charge needle pickup head 33 via the mounting rod 32. The pre-charge needle pickup head 33 is closed at its end. One end of the adsorption assembly 421 is connected to the second gas path connector 41, and the other end is connected to the outside.
[0027] Injection pens (pen syringes) mainly consist of an injection pen housing ( Figure 1 (C) Pre-fill needle ( Figure 1 The components are: (b) and (c) cap; wherein the pre-fill needle pickup head 33 is used to pick up the pre-fill needle, and the adsorption component 421 is used to adsorb the injection pen housing;
[0028] In this embodiment, the cap picking and fixing block 51 and the clamping fixing block 21 are integrally set; in practical applications, the cap picking and fixing block 51 can also be set at a suitable position according to different assembly processes.
[0029] In use, the multi-functional picking gripper is fixed to the robot or mobile platform, so that the multi-functional picking gripper can rotate and translate as needed to approach the workpiece to be picked up; in this embodiment, the first air connector 31 is connected to a positive pressure air source, and the second air connector 41 is connected to a negative pressure air source.
[0030] When it is necessary to pick up the injection pen housing, the multi-functional picking gripper moves toward the injection pen housing so that the adsorption component 421 is close to the workpiece, and at the same time the second air line connector 41 is connected to the negative pressure air source, thereby adsorbing and fixing the injection pen housing.
[0031] When the pre-filled needle needs to be picked up, first insert the pre-filled needle pickup head 33 into the pre-filled needle, and then connect the first air line connector 31 to the positive pressure air source, causing the pre-filled needle pickup head 33 to expand and pick up the pre-filled needle through internal tightening. When the pre-filled needle is placed into the injection pen, the mounting rod 32 can press the pre-filled needle into place. At the same time, the hollow mounting rod 32 can also serve as the air path of the positive pressure air source, reducing the distribution of air tubes and making it more durable. It can reduce the number of maintenance and make the gripper structure more compact and more flexible in use.
[0032] Similarly, the cap can also be picked up by the cap picking block 51.
[0033] In practical applications, several sets of pre-charge needle pickup mechanisms are usually arranged side by side on the main board 1, and correspondingly, a corresponding number of injection pen fixing mechanisms are also arranged on the clamping and fixing block 21. In order to reduce the number of parts, some of the air passages of the pre-charge needle pickup mechanism are arranged inside the main board 1, and some of the air passages of the injection pen fixing mechanism are arranged inside the clamping and fixing block 21.
[0034] Furthermore, the main board 1 and the clamping and fixing block 21 are connected in a detachable manner, so that the corresponding components can be freely combined according to different products; similarly, the main boards 1 and the clamping and fixing blocks 21 can also be extended by combination to improve the flexibility of the gripper.
[0035] Furthermore, the cap picking and fixing block 51 has a locking mechanism to prevent the cap from rotating and shifting. In this application, the cap picking and fixing block 51 can be manufactured by the clamping fixing block 21 itself, and the bottom surface of the clamping fixing block 21 can be used for limiting, which reduces the number of parts and also reduces the weight of the gripper.
[0036] In practical applications, the number of cap-picking fixing blocks 51 corresponds one-to-one with the number of injection pen fixing mechanisms.
[0037] The injection pen fixing mechanism also includes a limiting block 43, which corresponds to the adsorption component 421 and is used to limit the position of the injection pen housing. The shape of the limiting block 43 corresponds to the injection pen housing that needs to be adsorbed and fixed. It can be set to be detachable. The limiting block 43 of the corresponding specification can be replaced for different specifications of injection pens to improve the compatibility of the grippers.
[0038] In this embodiment, the adsorption component 421 includes several adsorption heads connected in parallel; the number of adsorption heads is three, and the arrangement of multiple adsorption heads can ensure that the pen housing is not easily displaced or tilted when picking it up.
[0039] In practical applications, the pre-charge needle pickup head 33 is made of flexible material. Under the pressure of compressed air from the positive pressure air source, it is easy to deform and expand in volume to pick up the pre-charge needle, and it is not easy to damage the workpiece. It also has a certain buffering and shock absorption effect when moving the pre-charge needle, which can better protect the workpiece.
[0040] Example 2
[0041] like Figure 3 and Figure 4 As shown, a multifunctional pickup gripper for assembling an injection pen includes a gripper mounting block and a pickup fixing mechanism. The gripper mounting block includes a main board 1 and a quick-change mounting mechanism; the main board 1 and the quick-change mounting mechanism are detachably fixed; the pickup fixing mechanism includes a pre-charge needle pickup mechanism, an injection pen fixing mechanism, and a cap fixing mechanism; the pre-charge needle pickup mechanism is mounted on the main board 1 and includes a first air connector 31, a mounting rod 32, and a pre-charge needle pickup head 33; the injection pen fixing mechanism is mounted on the quick-change mounting mechanism and includes a second air connector 41 and an actuator; the cap fixing mechanism is mounted on the quick-change mounting mechanism; the mounting rod 32 is hollow inside; the pre-charge needle pickup head 33 is connected to an external air source through the mounting rod 32 and the first air connector 31; the end of the pre-charge needle pickup head 33 is closed; one end of the actuator is also connected through a pipeline ( Figure 3 , Figure 4 (Not shown in the drawing) Connected to an external air source.
[0042] In this embodiment, the quick-connect mounting mechanism is a quick-connect mounting plate 22; the actuator is a pneumatic gripper 422; the cap fixing mechanism is a cap picking gripper 52; the pneumatic gripper 422 and the cap picking gripper 52 are respectively fixed on the quick-connect mounting plate 22; and the quick-connect mounting plate 22 is connected to the main board 1 by bolts or other quick-release fixing structures for easy installation and disassembly; in this embodiment, the first air connector 31 is connected to a positive pressure air source, and the pneumatic gripper 422 is also connected to a positive pressure air source through a similar air connector and pipeline.
[0043] Injection pens (pen syringes) mainly consist of an injection pen housing ( Figure 3 (C) Pre-fill needle ( Figure 3 The components are: (b) and (c) cap; wherein the pre-fill needle pickup head 33 is used to pick up the pre-fill needle, the pneumatic gripper 422 is used to grip and fix the injection pen housing, and the cap pickup gripper 52 is used to fix the cap.
[0044] When it is necessary to pick up the injection pen housing, the multi-functional picking gripper moves towards the injection pen housing so that the pneumatic gripper 422 is close to the workpiece. At the same time, the positive pressure air source is turned on, and the compressed air drives the pneumatic gripper 422 to fix the injection pen housing.
[0045] When the pre-filled needle needs to be picked up, first insert the pre-filled needle pickup head 33 into the pre-filled needle, and then connect the first air line connector 31 to the positive pressure air source, causing the pre-filled needle pickup head 33 to expand and pick up the pre-filled needle through internal tightening. When the pre-filled needle is placed into the injection pen, the mounting rod 32 can press the pre-filled needle into place. At the same time, the hollow mounting rod 32 can also serve as the air path of the positive pressure air source, reducing the distribution of air tubes and making it more durable. It can reduce the number of maintenance and make the gripper structure more compact and more flexible in use.
[0046] Similarly, the cap can also be picked up using the cap pickup claw 52.
[0047] In practical applications, several sets of pre-charge needle pickup mechanisms are usually arranged side by side on the main board 1, and correspondingly, a corresponding number of injection pen fixing mechanisms are also arranged on the quick-connect mounting plate 22. In order to reduce the number of parts, some of the air passages of the pre-charge needle pickup mechanism are arranged inside the main board 1. The number of cap fixing mechanisms and injection pen fixing mechanisms are the same and correspond one-to-one. This multi-functional pickup gripper can assemble multiple sets of injection pens at the same time.
[0048] In practical applications, the pre-charge needle pickup head 33 is made of flexible material. Under the pressure of compressed air from the positive pressure air source, it is easy to deform and expand in volume to pick up the pre-charge needle, and it is not easy to damage the workpiece. It also has a certain buffering and shock absorption effect when moving the pre-charge needle, which can better protect the workpiece.
[0049] Advantages of this utility model:
[0050] It features a variety of functions, including a pre-fill needle pickup mechanism, an injection pen fixing mechanism, and a cap pickup block. It can pick up the pre-fill needle using internal tension, fix the injection pen housing using negative pressure suction or pneumatic grippers, and fix the cap using the cap fixing mechanism. This simplifies the equipment, optimizes the injection pen assembly process, and improves efficiency. It is flexible in use, and the components of the grippers can be assembled and changed according to the assembly process and technology. It has a simple structure and is easy to maintain. Some air passages are inside the main board and the clamping and fixing block, and a sturdy mounting rod can be used as an air passage to reduce the number of exposed air tubes.
[0051] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A multifunctional pick-up gripper for assembling an injection pen, comprising a gripper mounting block and a pick-up and fixing mechanism, characterized in that, The gripper mounting block includes a main board (1) and a quick-change mounting mechanism; the main board (1) and the quick-change mounting mechanism are detachably fixed; the pickup and fixing mechanism includes a pre-charge needle pickup mechanism, an injection pen fixing mechanism, and a cap fixing mechanism; the pre-charge needle pickup mechanism is set on the main board (1) and includes a first air connector (31), a mounting rod (32), and a pre-charge needle pickup head (33); the injection pen fixing mechanism is set on the quick-change mounting mechanism and includes a second air connector (41) and an actuator; the cap fixing mechanism is set on the quick-change mounting mechanism; the mounting rod (32) is hollow inside; the first air connector (31) is connected to the pre-charge needle pickup head (33) through the mounting rod (32); the end of the pre-charge needle pickup head (33) is closed; one end of the actuator is connected to the second air connector (41); the first air connector (31) and the second air connector (41) are connected to an external air source.
2. The multifunctional pick-up gripper for assembling an injection pen according to claim 1, characterized in that, The quick-change installation mechanism is a clamping and fixing block (21); the actuator is an adsorption component (421); the cap fixing mechanism is a cap picking and fixing block (51); and the second air connector (41) is connected to a negative pressure air source.
3. The multifunctional pick-up gripper for assembling an injection pen according to claim 1, characterized in that, The quick-change installation mechanism is a quick-connect mounting plate (22); the actuator is a pneumatic gripper (422); the cap fixing mechanism is a cap picking gripper (52); and the second air connector (41) is connected to a positive pressure air source.
4. The multifunctional pick-up gripper for assembling an injection pen according to claim 1, characterized in that, The mainboard (1) is provided with several sets of pre-charge needle pickup mechanisms; the first air circuit connector (31) is connected to a positive pressure air source; the number of the injection pen fixing mechanism is the same as that of the pre-charge needle pickup mechanism and they correspond one to one.
5. The multifunctional pick-up gripper for assembling an injection pen according to claim 4, characterized in that, The number of cap fixing mechanisms is the same as the number of injection pen fixing mechanisms, and they correspond one-to-one.
6. The multifunctional pick-up gripper for assembling an injection pen according to claim 2, characterized in that, The injection pen fixing mechanism also includes a limiting block (43).
7. The multifunctional pick-up gripper for assembling an injection pen according to claim 2, characterized in that, The adsorption assembly (421) includes several adsorption heads connected in parallel.
8. The multifunctional pick-up gripper for assembling an injection pen according to claim 7, characterized in that, The number of adsorption heads is three.
9. The multifunctional pick-up gripper for assembling an injection pen according to claim 1, characterized in that, The pre-charged needle pickup head (33) is made of flexible material.