Intermittent injection pen assembling machine

Abstract

The utility model provides an intermittent injection pen assembling machine. The intermittent injection pen assembling machine comprises a rack; the rotating module is rotatably arranged on the machine table in the rack, the rotating module is provided with a first working table and a second working table which are oppositely arranged, and each working table is provided with a containing jig used for containing all components of the injection pen; the assembling platform is arranged on the machine table, and a plurality of positioning devices used for fixing all components of the injection pen are arranged on the assembling platform; the pressing module is arranged on the machine table and comprises a pressing support, a first sliding rail and a second sliding rail, and the first sliding rail and the second sliding rail are arranged on the pressing support; an expansion assembly is arranged on the first sliding rail, and a press-fitting assembly is arranged on the second sliding rail. And the grabbing device is used for grabbing and transferring all components of the injection pen and grabbing and transferring the pressed injection pen to the rotating module to complete the finished product discharging action of the injection pen. And it is ensured that the position of the injection pen is fixed and accurate in the assembling process, and position deviation in the assembling process is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of medical product assembly, and in particular to an intermittent injection pen assembly machine. Background Technology

[0002] Intermittent injection pens, as convenient medical devices, enable patients to administer injections independently and are widely used in the medical field. With the continuous growth of market demand, the production scale of intermittent injection pens has gradually expanded, placing higher demands on their mass production.

[0003] Currently, the assembly of injection pens mainly relies on manual operation. Because injection pens are high-precision medical products, their assembly process requires ensuring accurate positioning dimensions and appropriate assembly force. However, manual assembly has many limitations: First, manual operation makes it difficult to guarantee assembly consistency, easily leading to incomplete assembly; second, manual pressing cannot guarantee stable assembly accuracy; third, manual assembly is inefficient and cannot meet the needs of mass production; finally, labor costs are high, and product quality control is difficult.

[0004] The aforementioned problems severely restrict the large-scale production of intermittent injection pens, failing to meet enterprises' requirements for production efficiency and product quality. Therefore, developing an automated assembly equipment that can ensure assembly accuracy and improve production efficiency is of great significance. Utility Model Content

[0005] The purpose of this invention is to solve the technical problems of unstable assembly accuracy and low production efficiency caused by manual assembly of injection pens in the prior art.

[0006] This utility model provides an intermittent injection pen assembly machine, comprising:

[0007] frame;

[0008] A rotating module is rotatably mounted on a machine platform inside the frame. The rotating module has a first worktable and a second worktable arranged opposite to each other. Each worktable is provided with a receiving fixture for placing the components of the injection pen.

[0009] An assembly platform, placed on the machine base, includes a positioning device for fixing the various components of the injection pen;

[0010] A pressing module, placed on the machine base, includes a pressing bracket and a first slide rail and a second slide rail disposed on the pressing bracket; the first slide rail is provided with a tensioning component, and the second slide rail is provided with a pressing component;

[0011] The gripping device is used to grip and transfer the components of the injection pen, and to grip and transfer the pressed injection pen to the rotating module to complete the finished product discharge action of the injection pen.

[0012] Furthermore, the interior of the frame forms a sealed space, and one side of the frame is provided with an openable feed port.

[0013] Furthermore, the rotating module is disposed at the feed inlet and includes:

[0014] The drive unit is fixed on the frame;

[0015] A turntable is connected to the drive device. The turntable is divided into a first worktable and a second worktable along its axis. Each of the first worktable and the second worktable is provided with a receiving fixture.

[0016] Furthermore, the receiving fixture includes a first fixture, a second fixture, a third fixture, and a fourth fixture arranged in parallel from the outside to the inside along the turntable;

[0017] The first fixture is used to load pen caps; the second fixture is used to load pen holders; the third fixture is used to load pre-fill needles; and the fourth fixture is used to load pen refill holders.

[0018] Furthermore, the first slide rail and the second slide rail are arranged horizontally in sequence along the vertical direction on the side of the pressing bracket near the assembly platform, and there is a gap between the first slide rail and the second slide rail.

[0019] Furthermore, the tensioning assembly is provided with multiple vertical slide rails, and pressure caps are provided inside the vertical slide rails;

[0020] The press assembly includes a press, which is connected to the tightening assembly via a press connector.

[0021] Furthermore, a sensor is provided between the press and the tensioning assembly.

[0022] Furthermore, the pressing module also includes a first drive and a second drive;

[0023] The first drive drives the press and the tensioning assembly to move horizontally along the first slide rail and the second slide rail, respectively; the second drive drives the press and the tensioning assembly to move downward in the vertical direction.

[0024] Furthermore, the assembly platform includes a support platform placed on the machine base and close to the first slide rail and the second slide rail, and a clamp placed on the surface of the support platform;

[0025] The clamp is used to fix the injection pen assembly, and the projection of the vertical slide rail in the vertical direction coincides with the injection pen assembly.

[0026] Furthermore, the gripping device includes multiple grippers corresponding to the positioning device.

[0027] Compared with the prior art, this utility model has at least the following beneficial effects: by setting a rotating module inside the frame and setting opposing first and second worktables on the rotating module, the feeding and assembly processes can be carried out alternately; at the same time, two independent slide rails are set on the pressing module for installing the expansion component and the pressing component respectively, so that the two components can work together, which not only improves the assembly efficiency but also ensures the assembly accuracy; in addition, a positioning device is set on the assembly platform to ensure that the injection pen is accurately fixed in position during the assembly process, effectively avoiding positional deviation during the assembly process and improving the product assembly quality. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained as provided without creative effort.

[0029] Figure 1 This is a three-dimensional structural diagram of an injection pen assembly machine according to one embodiment of the present invention;

[0030] Figure 2 This is a top view of an injection pen assembly machine according to one embodiment of the present invention;

[0031] Figure 3 This is a three-dimensional structural diagram of the rotating module in one embodiment of the present invention;

[0032] Figure 4 This is a front view of the rotating module in one embodiment of the present invention;

[0033] Figure 5 This is a three-dimensional structural diagram of the robotic arm in one embodiment of the present invention;

[0034] Figure 6 This is a three-dimensional structural diagram of the assembly platform in one embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of the pressing system in one embodiment of the present invention;

[0036] Figure 8 This is a three-dimensional structural diagram of the clamp buffer bracket in one embodiment of the present invention;

[0037] The components are as follows: 1-Frame; 2-Rotating module; 3-Gripping device; 4-Assembly platform; 5-Pressure module; 6-Gripper buffer bracket; 7-Automatic door; 8-Drive device; 11-Pen refill holder; 12-Pre-charge needle; 13-Pen holder; 14-Pen cap; 20-First workbench; 21-First fixture; 22-Second fixture; 23-Third fixture; 24-Fourth fixture; 31-First gripper; 32-Second gripper; 33-Third gripper; 34-Fourth gripper; 35-Electric cylinder; 41-First clamping block; 42-Second clamping block; 50-Pressure bracket; 51-First slide rail; 52-Vertical slide rail; 53-Tightening assembly; 54-Pressure cap; 55-Presser; 56-Sensor; 57-Presser connector. Detailed Implementation

[0038] The present invention will now be described in more detail with reference to the accompanying drawings, which illustrate preferred embodiments of the present invention. It should be understood that those skilled in the art can modify the present invention described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being broadly known to those skilled in the art and is not intended to limit the present invention.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] The present invention will be described in more detail below by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer as will be explained below. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0041] Example 1

[0042] This utility model provides an intermittent injection pen assembly machine. Please refer to [reference needed]. Figure 1 and Figure 2 ,include:

[0043] Rack 1;

[0044] Rotating module 2 is rotatably mounted on a machine platform inside the frame 1. The rotating module 2 has a first workbench 20 and a second workbench arranged opposite to each other. Each workbench is provided with a receiving fixture for placing the components of the injection pen.

[0045] Assembly platform 4, placed on the machine base, includes a positioning device for fixing the components of the injection pen;

[0046] The pressing module 5 is placed on the machine base and includes a pressing bracket 50 and a first slide rail 51 and a second slide rail disposed on the pressing bracket 50; the first slide rail 51 is provided with a tensioning component 53 and the second slide rail is provided with a pressing component.

[0047] The gripping device 3 is used to grip and transfer the components of the injection pen, and to grip and transfer the pressed injection pen to the rotating module 2 to complete the finished product discharge action of the injection pen.

[0048] Specifically, the accommodating fixture can hold multiple sets of injection pen assemblies, and the design of the rotating module 2 allows two worktables to alternately assemble the injection pens, thereby improving production efficiency. The positioning device on the assembly platform 4 ensures precise positioning of the injection pens during assembly, reducing assembly errors. The expansion component 53 and pressing component in the pressing module 5 achieve precise pressing of the injection pen components through the precise movement of the slide rails, ensuring assembly quality. The gripping device 3 ensures that each component can be accurately moved from one place to another, further improving the automation and efficiency of assembly. Through precise mechanical design and automated control, this equipment can achieve high-precision, high-efficiency injection pen assembly, meeting the needs of mass production.

[0049] Furthermore, the interior of the frame 1 forms a sealed space, and one side of the frame 1 is provided with an openable feed port.

[0050] Specifically, the enclosed space design of rack 1 effectively prevents external dust and impurities from entering, ensuring the cleanliness of the assembly environment and thus improving the assembly quality of the products. The openable design of the feed inlet facilitates the loading and unloading of materials, and can be closed when not in use to further maintain the cleanliness of the internal environment. The feed inlet is located on one side of rack 1, making it convenient for operators or automated equipment to load and unload materials.

[0051] In a preferred embodiment, the feed inlet can be equipped with an automatic door 7. The automatic door 7 can be a vertically operating lifting door or a fixed door located at the center of the turntable and rotating with it. The size of the feed inlet can be adjusted according to actual production needs to accommodate turntables of different sizes. Furthermore, a sealing strip can be installed around the edge of the automatic door 7 to enhance the sealing effect. Through the design of the enclosed space inside the frame 1 and the installation of an openable feed inlet, the problem of insufficient cleanliness in the assembly environment in existing technologies is effectively solved, while simultaneously improving the convenience of material loading and unloading. Compared with existing technologies, this solution not only improves the cleanliness of the assembly process but also simplifies the material loading and unloading operation, thereby improving production efficiency and product quality.

[0052] For further details, please refer to... Figure 3 The rotating module 2 is disposed at the feed inlet and includes:

[0053] The drive unit 8 is fixed on the frame 1;

[0054] A turntable is connected to the drive device 8. The turntable is divided into a first worktable 20 and a second worktable along its axis. The first worktable 20 and the second worktable are respectively provided with a receiving fixture.

[0055] Specifically, the drive unit 8 can be an electric motor or a servo motor, connected to the turntable via a coupling to achieve the turntable's rotational movement. The turntable can be further optimized, for example, by using lightweight materials to reduce overall weight, or by adding anti-slip textures to its surface to improve operational stability; it can also be equipped with a locking device to prevent accidental rotation. The specific structure of the receiving fixture can be adjusted according to the components of the injection pen.

[0056] In this embodiment, please refer to Figure 4 The receiving fixture includes a first fixture 21, a second fixture 22, a third fixture 23 and a fourth fixture 24 arranged in parallel from the outside to the inside along the turntable;

[0057] The first fixture 21 is used to load the pen cap 14; the second fixture 22 is used to load the pen holder 13; the third fixture 23 is used to load the pre-fill needle 12; and the fourth fixture 24 is used to load the pen refill holder 11.

[0058] By placing the rotating module 2 at the feed inlet and employing a combination of the drive device 8 and the turntable, the components of the injection pen are quickly and accurately transferred from the outside to the assembly machine for pressing and assembly. This not only improves the automation level of assembly but also significantly enhances the consistency and precision of assembly, effectively solving problems such as incomplete assembly and unstable precision that exist in manual operation. Furthermore, this solution further improves the ease of operation and assembly efficiency of the equipment by optimizing the design of the turntable and the receiving fixture.

[0059] For further details, please refer to... Figure 5 The gripping device 3 includes multiple grippers corresponding to the positioning device.

[0060] Specifically, the grippers include a first gripper 31, a second gripper 32, a third gripper 33, and a fourth gripper 34, which respectively cooperate with the first fixture 21, the second fixture 22, the third fixture 23, and the fourth fixture 24. In this embodiment, reference is made to... Figure 8 The machine tool is also equipped with a gripper buffer bracket 6, which can be replaced by those skilled in the art to accommodate injection pens of different shapes and sizes. Simultaneously, the grippers can also have adjustable gripping force to ensure that the parts are not damaged during gripping. Furthermore, the grippers can be equipped with sensors 56 to detect gripping force and position, thereby further improving the accuracy and stability of gripping.

[0061] As a preferred embodiment, the gripper can be pneumatically or electrically driven to achieve rapid and accurate gripping and releasing actions. Pneumatic grippers control the gripping force by adjusting air pressure, while electric grippers achieve precise gripping and releasing through motor drive.

[0062] For further details, please refer to... Figure 7 The first slide rail 51 and the second slide rail are arranged horizontally in sequence along the vertical direction on the side of the pressing bracket 50 near the assembly platform 4, and there is a gap between the first slide rail 51 and the second slide rail.

[0063] In the pressing module 5, the arrangement of the first slide rail 51 and the second slide rail allows the expansion assembly 53 and the pressing assembly to move horizontally along the slide rails. Specifically, in this embodiment, the expansion assembly 53 is provided with multiple vertical slide rails 52, and a pressure cap 54 is provided within each vertical slide rail 52. The pressing assembly includes a press 55, which is connected to the expansion assembly 53 via a press connector 57. The multiple vertical slide rails 52 on the expansion assembly 53 are used to guide the movement of the pressure cap 54 in the vertical direction, ensuring that the pressure cap 54 can apply pressure accurately. The press 55 in the pressing assembly is connected to the expansion assembly 53 via the press connector 57, enabling the press 55 to effectively transmit pressure to the expansion assembly 53.

[0064] A sensor 56 is installed between the press 55 and the tensioning assembly 53. This sensor 56 is used to detect the relative position or pressure changes between the press 55 and the tensioning assembly 53 to ensure precise control of the pressing force and position during assembly. The sensor 56 can be of various types, including but not limited to pressure sensors 56, displacement sensors 56, or photoelectric sensors 56. Specifically, the pressure sensor 56 can monitor pressure changes in real time during the pressing process, the displacement sensor 56 can detect the relative displacement between the press 55 and the tensioning assembly 53, and the photoelectric sensor 56 can detect position information through changes in light signals. The data from these sensors 56 can be fed back to the control system, thereby achieving precise control of the pressing process.

[0065] The pressing module 5 also includes a first driving cylinder and a second driving cylinder. Specifically, the arrangement of the first and second driving cylinders enables precise motion control of the press 55 and the tensioning assembly 53 in both horizontal and vertical directions. The first driving cylinder drives the press 55 and the tensioning assembly 53 to move horizontally along the first slide rail 51 and the second slide rail, ensuring precise horizontal positioning of the assembly. The second driving cylinder drives the press 55 and the tensioning assembly 53 to move downwards vertically, ensuring appropriate pressure is applied to the assembly in the vertical direction. This dual-cylinder drive design makes the pressing process more stable and precise, effectively avoiding common problems such as incomplete assembly and uneven pressure in manual operation. Therefore, by setting the interval between the first slide rail 51 and the second slide rail, the tensioning assembly 53 and the pressing assembly can move together on different tracks, thereby improving assembly accuracy and efficiency. The coordinated use of the sensor 56 and the driving cylinder further ensures stability and consistency during the assembly process.

[0066] For further details, please refer to... Figure 6 The assembly platform 4 includes a support platform placed on the machine base and close to the first slide rail 51 and the second slide rail, and a clamp placed on the surface of the support platform.

[0067] The clamp is used to fix the injection pen assembly, and the projection of the vertical slide rail 52 in the vertical direction coincides with the injection pen assembly.

[0068] Specifically, the support platform provides the operating platform required for pressing. A clamp is installed on the upper surface of the support platform. For ease of operation, the support platform is positioned near the press 55 in the pressing module 5. The clamp can take various forms, such as spring clamps, pneumatic clamps, or electromagnetic clamps. Spring clamps achieve clamping through the elastic force of springs and are suitable for applications where clamping force requirements are not high; pneumatic clamps use air pressure to drive the opening and closing of the jaws, featuring high clamping force and fast response speed; electromagnetic clamps achieve clamping through electromagnetic force and are suitable for applications requiring high clamping precision.

[0069] In this embodiment, the fixture has different shapes; please refer to [reference needed]. Figure 6 The first clamping block 41 and the second clamping block 42 are in the clamp, and the clamp is driven by an electric cylinder 35. In addition, the surface of the clamp can be provided with anti-slip material or have a texture added to enhance the stability of clamping.

[0070] Example 2

[0071] The intermittent injection pen assembly machine in Example 1 is described below through a specific operating procedure.

[0072] First, multiple injection pen components (i.e., pen cartridge holder 11, pre-filled needle 12, pen holder 13 and pen cap 14) are manually loaded into the first fixture 21, second fixture 22, third fixture 23 and fourth fixture 24 on the first worktable 20 of the turntable.

[0073] After loading is completed, the machine is started. The drive unit 8 drives the rotating tray to rotate the first worktable 20 into the frame 1 and lock the turntable. At this time, the second worktable on the tray rotates to the outside of the frame 1, and the manual can place the components in the positioning fixture of the second worktable to make full preparation for the next batch of assembly.

[0074] The gripping device 3 drives four grippers to simultaneously grip the injection pen components located in the four fixtures and place them in the corresponding positions on the assembly platform 4. Taking the pen refill holder 11 on the assembly platform 4 as the main body, when the pen refill holder 11 is gripped by the fourth gripper 34 and loaded between the first clamping block 41 and the second clamping block 42, the first clamping block 41 and the second clamping block 42 move to clamp and position the bottom of the pen refill holder 11. After the pen refill holder 11 is clamped, the expansion component 53 of the pressing system moves above the pre-filling needle 12 and expands. Driven by the press 55, the expansion component 53 expands the pre-filling needle 12 and moves it into the pen refill holder 11 for pressing. Then, the second gripper 32 grips the pen barrel 13 and places it on the pen refill holder 11 after the pre-filling needle 12 has been filled. The press 55 moves laterally above the pen barrel 13 and presses down to press the pen barrel 13 and the pen refill holder 11 into place. The second gripper 32 clamps the pen holder 13, lifts the whole thing up and places it in the pen cap 14. At the same time, the press 55 moves horizontally above the pen holder 13 and presses downward to complete the assembly of the injection pen.

[0075] After assembly, the first clamping block 41 and the second clamping block 42 are released, and the gripping device 3 transfers the assembled injection pen to the receiving fixture of the rotating module 2. The rotation of the rotating module 2 simultaneously realizes the input of components and the output of finished products.

[0076] The finished products are transferred to the container fixture of the rotating module 2 by the gripping device 3. The rotating module 2 realizes the classification and collection of finished products, avoiding manual transfer of individual products, improving production efficiency, and reducing the damage to products that may be caused by manual transfer.

[0077] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. An intermittent injection pen assembly machine, characterized in that, include: Rack (1); The rotating module (2) is rotatably mounted on a machine platform inside the frame (1). The rotating module (2) has a first worktable (20) and a second worktable arranged opposite to each other. Each worktable is provided with a receiving fixture for placing the components of the injection pen. An assembly platform (4) is placed on the machine base, and the assembly platform (4) is provided with a plurality of positioning devices for fixing the components of the injection pen; A pressing module (5) is placed on the machine platform and includes a pressing bracket (50) and a first slide rail (51) and a second slide rail disposed on the pressing bracket (50); the first slide rail (51) is provided with a tensioning component (53) and the second slide rail is provided with a pressing component; The gripping device (3) is used to grip and transfer the components of the injection pen, and to grip and transfer the pressed injection pen to the rotating module (2) to complete the finished product discharge action of the injection pen.

2. The intermittent injection pen assembly machine as described in claim 1, characterized in that, The frame (1) forms a closed space inside, and an openable feed port is provided on one side of the frame (1).

3. The intermittent injection pen assembly machine as described in claim 2, characterized in that, The rotating module (2) is located at the feed inlet and includes: The drive unit (8) is fixed on the frame (1); The turntable is connected to the drive device (8). The turntable is divided into a first worktable (20) and a second worktable along its axis. The first worktable (20) and the second worktable are respectively provided with a receiving fixture.

4. The intermittent injection pen assembly machine as described in claim 3, characterized in that, The receiving fixture includes a first fixture (21), a second fixture (22), a third fixture (23) and a fourth fixture (24) arranged in parallel from the outside to the inside along the turntable; The first fixture (21) is used to load the pen cap (14); the second fixture (22) is used to load the pen holder (13); the third fixture (23) is used to load the pre-fill needle (12); and the fourth fixture (24) is used to load the pen refill holder (11).

5. The intermittent injection pen assembly machine as described in claim 1, characterized in that, The first slide rail (51) and the second slide rail are arranged horizontally in sequence along the vertical direction on the side of the pressing bracket (50) near the assembly platform (4), and there is a gap between the first slide rail (51) and the second slide rail.

6. The intermittent injection pen assembly machine as described in claim 5, characterized in that, The expansion assembly (53) is provided with multiple vertical slide rails (52), and the vertical slide rails (52) are provided with pressure caps (54); The press assembly includes a press (55), which is connected to the expansion assembly (53) via a press connector.

7. The intermittent injection pen assembly machine as described in claim 6, characterized in that, A sensor (56) is provided between the press (55) and the tensioning assembly (53).

8. The intermittent injection pen assembly machine as described in claim 7, characterized in that, The pressing module (5) also includes a first drive and a second drive; The first drive drives the press (55) and the tensioning assembly (53) to move horizontally along the first slide rail (51) and the second slide rail respectively; the second drive drives the press (55) and the tensioning assembly (53) to move downward in the vertical direction.

9. The intermittent injection pen assembly machine as described in claim 6, characterized in that, The assembly platform (4) includes a support platform placed on the machine base and close to the first slide rail (51) and the second slide rail, and a clamp placed on the surface of the support platform. The clamp is used to fix the injection pen assembly, and the projection of the vertical slide rail (52) in the vertical direction coincides with the injection pen assembly.

10. The intermittent injection pen assembly machine as described in claim 1, characterized in that, The gripping device (3) includes multiple grippers corresponding to the positioning device.

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