Assembling carrier
By designing the base and movable pressure block of the assembly device, the problem of low assembly efficiency of needle-free injectors was solved, and efficient alignment and assembly of the upper shell and button were achieved, improving the overall processing efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MAIDER MEDICAL IND EQUIP
- Filing Date
- 2025-05-30
- Publication Date
- 2026-04-28
AI Technical Summary
Existing needle-free injectors have low assembly efficiency, requiring a separate workstation for aligning and assembling the upper shell and button, which affects the overall processing efficiency.
Design an assembly loading device, including a base and a movable pressure block. The base is provided with a placement slot and an opening. The pressure block can cover the opening under the action of a spring. By moving the pressure block and pressing the button, the inner core of the button inside the upper shell is aligned with the center of the upper shell, and the upper tube assembly is directly inserted to complete the assembly.
It improves the assembly efficiency of needle-free injectors, ensures the stability of buttons during assembly, reduces the need for position calibration and independent processing, and improves overall processing efficiency.
Smart Images
Figure CN224169682U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automated assembly technology of needleless injectors, and relates to a carrier, and more particularly to an assembly carrier. Background Technology
[0002] A needle-free injector assembly generally consists of a lower tube assembly, a lower shell assembly, and an upper shell assembly. The upper shell assembly includes the upper shell, a button, and a button core. The button core is located inside the upper shell, while the button is exposed on the upper shell surface. The button core has a central hole for engaging with the lower tube assembly. When the lower tube assembly and upper shell assembly are not installed, the button core is off-center, meaning its central hole does not coincide with the central hole of the upper shell assembly. This prevents the lower tube assembly from being inserted into the button core coaxially. During assembly, the button must first be pressed to align the central hole of the button core with the center of the upper shell. Then, the lower tube assembly is inserted, and the button is released, causing the button core to snap into place with the lower tube assembly.
[0003] Previously, the above installation process required a separate workstation for assembly. The upper shell was removed from the main conveyor line and placed on the assembly station's carrier. The material handling mechanism then placed the button into the button slot on the upper shell and kept it pressed. Subsequently, the tube assembly was removed and inserted into the upper shell to complete the assembly. After assembly, the product was placed back onto the main line carrier for transport to subsequent workstations for processing. This assembly method has some drawbacks. For example, the product needs to be recalibrated after being removed from the main line for accurate subsequent processing. Separate removal and independent processing affects the processing cycle of other workstations, ultimately hindering the overall processing efficiency. Summary of the Invention
[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing an assembly loading device. It solves the technical problem of low assembly efficiency in existing needle-free injectors.
[0005] The objective of this utility model can be achieved through the following technical solutions:
[0006] A loading device includes a base with a protruding placement portion and a placement groove for positioning materials. The placement portion has an opening communicating with the placement groove on its side, and a horizontally movable pressure block is provided on one side of the opening, which moves closer to or away from the opening.
[0007] The carrier of this application is provided with a placement part, which has a placement groove. The upper shell of the needleless syringe is placed in the placement groove and can be limited. The side of the placement part has an opening that opens the side of the placement groove. The button mounting position on the upper shell can be exposed at the opening. Subsequently, the button can be directly removed from the opening and inserted into the button mounting position on the upper shell, resulting in high assembly efficiency.
[0008] The carrier of this application has a movable pressure block on the open side. After the button is assembled to the button mounting position on the upper shell, the pressure block moves close to the open and presses on the button to put the button in the triggered state so that the center of the button core inside the upper shell is aligned with the center of the upper shell. With this setting, the upper tube assembly can be directly inserted into the inside of the upper shell to complete the assembly. This design allows assembly to be completed directly on the carrier, which greatly improves the assembly efficiency.
[0009] In one of the above-mentioned loading devices, the base has a protruding connecting part, the pressure block is slidably connected to the connecting part, and a spring is press-fitted onto the connecting part. Under the action of the spring force, the pressure block always maintains the tendency to extend out and cover the opening.
[0010] The pressure block of this application can be directly connected to the carrier. Under the action of the spring force, the end of the pressure block covers the opening. When the button is assembled, the pressure block is pushed by external force to overcome the spring force and expose the opening. Subsequently, the button can be placed inside the opening and assembled with the upper shell. After assembly, the external force is removed, and the pressure block extends to keep pressing on the button. This design can keep the upper shell with the button in a state that allows for the assembly of the upper tube assembly at any time, and also prevents the button from falling off during the movement of the upper shell with the button with the carrier. While ensuring stability, it further improves the assembly efficiency.
[0011] In one of the above-mentioned loading devices, a driving component is provided on one side of the base, and the pressure block is connected to the driving component and is driven to move closer to or away from the opening by the driving component.
[0012] The pressure block of this application can be installed on one side of the production line at the upper tube assembly station. After the carrier is in place, the pressure block is driven by the drive component to move toward the opening to press the button and keep the upper shell assembly in the assembled state, which can also improve the assembly efficiency.
[0013] In one of the above-mentioned loading devices, the opening has two vertical edges, the pressure block is disposed close to the two edges, and the movement path of the pressure block is parallel to the plane containing the two edges.
[0014] The pressure block of this application moves laterally, that is, it moves along the width of the opening. This movement makes it easier for subsequent external forces to push the pressure block backward, resulting in better avoidance. Moreover, when the pressure block moves laterally to press the button, the button is less likely to fall off, resulting in better overall stability.
[0015] In one of the above-mentioned loading devices, the end of the pressure block has an inclined guide surface on the side near the placement part, and the guide surface is inclined toward the side away from the placement part in the direction near the end of the pressure block.
[0016] A guide surface is provided at the end of the pressure block. When the guide surface contacts the button, it allows the button to move along the guide surface to be pressed in smoothly. This design retains the advantage of the pressure block moving laterally to avoid obstacles, and simplifies the movement of the pressure block by only moving forward and backward to trigger the button to be pressed. The triggering is stable and efficient.
[0017] In one of the above-mentioned assembly loaders, the connecting part is fixed on the mounting frame and the mounting frame has a horizontally arranged mounting plane, the bottom surface of the pressure block abuts against the mounting plane, and the pressure block is configured to move along the mounting plane.
[0018] The pressure block moves along the mounting plane, and its stability is greatly improved by being guided by the mounting plane. Moreover, the mounting plane can bear the pressure block, which makes the overall structure more durable.
[0019] In one of the above-mentioned assembly loaders, the connecting part has a columnar structure and is horizontally oriented, the pressure block has a central inner hole, the pressure block is fitted onto the connecting part through the central inner hole, the outer peripheral surface of the connecting part is clearance-fitted with the inner wall of the central inner hole, and the spring is press-fitted inside the central inner hole.
[0020] The connection between the connecting part and the pressure block, combined with the aforementioned mounting surface, can clamp and limit the pressure block vertically, ensuring that the pressure block will not shift vertically during movement, making the release of the spring force more stable, thereby ensuring that the pressure block can move back and forth in a straight line stably.
[0021] In one of the above-mentioned loading devices, a rib protrudes along the length of the outer peripheral surface of the connecting part, and a groove that mates with the rib is provided on the inner wall of the central inner hole, so that the pressure block can slide guided by the cooperation of the rib and the groove.
[0022] The combination of the ribs and the grooves effectively ensures that the pressure block will not deviate or rotate in the circumferential direction, thus preventing the guide surface that mates with the button from shifting and affecting the pressing action, resulting in better overall stability.
[0023] In one of the above-mentioned loading devices, a blocking part protrudes from the mounting plane, and the blocking part can form a stop with the side of the pressure block to restrict the pressure block from extending.
[0024] In one of the above-mentioned loading devices, the pressure block includes a square portion, a columnar portion and a top pressure portion in sequence along its length. The bottom surface of the square portion is a plane that fits against the mounting plane. The side portion of the square portion can block and restrict the movement of the pressure block with the side portion of the blocking portion. The side portion of the columnar portion and the top portion of the blocking portion block and restrict the pressure block from shifting toward the side closer to the placement portion.
[0025] The pressure block of this application has a three-section structure along its length: a square section, a columnar section, and a top pressure section. During forward movement, the square section forms a barrier with the aforementioned blocking section to limit the maximum stroke of the pressure block. In addition, during the movement of the square section, the top of the blocking section always remains in contact with the side of the columnar section. The blocking section is used to prevent the pressure block from moving towards the open side, which would cause excessive pressure on the button. At the same time, it also prevents the pressure block from shifting too much and pressing the button excessively when it is pulled back by external force, which would damage the internal components of the upper shell. This design improves the accuracy of the pressure block's movement and greatly enhances the overall assembly stability.
[0026] In one of the above-mentioned loading devices, the top of the blocking part is provided with an arc-shaped surface facing the direction of the columnar part, the arc-shaped surface cooperates with the outer periphery of the columnar part, and the columnar part can be guided to move along the arc-shaped surface.
[0027] The arc-shaped surface on the blocking part of this application is adapted to the outer periphery of the columnar part. The two fit together so that the force is more even and the movement is more stable. The arc-shaped surface laterally wraps around a part of the columnar part, which can further improve the accuracy of the movement of the pressure block.
[0028] Compared with existing technologies, the advantages of this product are:
[0029] 1. This carrier is equipped with a placement part with a placement groove. The upper shell of the needleless syringe is placed in the placement groove and can be limited. The side of the placement part has an opening that opens the side of the placement groove. The button mounting position on the upper shell can be exposed at the opening. The button can be directly removed from the opening and installed into the button mounting position on the upper shell, resulting in high assembly efficiency.
[0030] 2. This vehicle has a movable pressure block on the open side. After the button is assembled to the button mounting position on the upper shell, the pressure block moves close to the open and presses on the button to put the button in the triggered state, so that the center of the button core inside the upper shell is aligned with the center of the upper shell. With this setting, the upper tube assembly can be directly inserted into the inside of the upper shell to complete the assembly. This design allows assembly to be completed directly on the vehicle, which greatly improves the assembly efficiency. Attached Figure Description
[0031] Figure 1 This is a schematic diagram of the structure of the pressure block extending to press the button of this utility model;
[0032] Figure 2 This is a schematic diagram of the structure of the present invention in the retracted state of the pressure block;
[0033] Figure 3 This is a top view of the present invention;
[0034] Figure 4This is a schematic diagram of the installation structure of the present invention with the pressure block extended.
[0035] Figure 5 This is a schematic diagram of the installation structure of the present invention in the retracted state of the pressure block;
[0036] Figure 6 This is another angled schematic diagram of the pressure block in the retracted state of this utility model;
[0037] Figure 7 This is a partial structural cross-sectional view of this utility model.
[0038] In the diagram, 1 is the base; 2 is the placement part; 21 is the placement groove; 22 is the opening; 221 is the edge; 3 is the pressure block; 31 is the top pressure part; 311 is the guide surface; 32 is the columnar part; 33 is the square part; 34 is the sliding groove; 4 is the connecting part; 41 is the protruding rib; 5 is the mounting bracket; 51 is the mounting plane; 52 is the blocking part; 521 is the arc-shaped surface; and 6 is the spring. Detailed Implementation
[0039] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0040] Example 1
[0041] like Figures 1-3 The illustrated assembly includes a square base 1, which is slidably connected to a main conveyor line (not shown in the diagram). There are various ways the main conveyor line and the assembly can work together; in this embodiment, a chute 34 is used for connection. The assemblies abut against each other and are propelled forward by a pushing mechanism at the end of the main line. This is just one method; the base 1 can also be directly connected to a conveyor belt, with the conveyor belt directly conveying the base 1. The specific structure of the base 1 is as follows: The base 1 has four square placement portions 2, each adapted to different components. The placement portion 2 in the lower right corner is for placing the upper shell. This portion 2 is columnar and protrudes, with a placement groove 21 for positioning materials. An opening 22 is provided on the side of the placement groove 21. When the upper shell is inserted into the opening 22 with one end facing upwards, the button on the upper shell is precisely positioned at the opening 22. The width of the opening 22 is slightly larger than the width of the button installation position, thus the entire upper shell is circumferentially limited at the placement portion 2. A pressure block 3 is provided on the side of the base 1 near the opening 22. The pressure block 3 can be moved to block the accessory position at the opening of the opening 22 or moved away. This design allows the pressure block 3 to keep the opening 22 open during assembly, making it easier to insert the button. Alternatively, after the button is inserted, it can be pressed down to make the internal parts of the upper shell move together to adapt to the subsequent assembly of the upper tube assembly, resulting in high assembly efficiency.
[0042] like Figure 2 and Figure 4 As shown, the specific connection structure between the pressure block 3 and the base 1 is as follows: A mounting bracket 5 is fixed on the base 1. The height of the mounting bracket 5 is close to the height of the middle part of the opening 22, so that the height of the pressure block 3 is close to the height of the button. There is a recess on the top of the mounting bracket 5 near the placement part 2. The connecting part 4 is fixed to the side of the recess. The bottom surface of the recess is the mounting plane 51. The connecting part 4 is a columnar structure and its axis is parallel to the mounting plane 51. The pressure block 3 is slidably connected to the connecting part 4, and a spring 6 is pressed on the connecting part 4. Under the action of the spring 6, the pressure block 3 always maintains the tendency to extend out and cover the opening 22. Under the elastic force of spring 6, the end of the pressure block 3 is covered at the opening 22. During button assembly, external force pushes the pressure block 3 to overcome the elastic force of spring 6 and expose the opening 22. Subsequently, the button can be placed inside the opening 22 and assembled with the upper shell. After assembly, the external force is removed, and the pressure block 3 extends and presses against the button. This design not only keeps the upper shell with the button in a state that allows for the assembly of the upper tube assembly at any time, but also prevents the button from falling off during the movement of the upper shell with the button on the carrier, thus improving assembly efficiency while ensuring stability. As a preferred option, the bottom surface of the pressure block 3 abuts against the mounting plane 51, and the pressure block 3 is configured to move along the mounting plane 51. The movement of the pressure block 3 along the mounting plane 51 is guided by the mounting plane 51, which greatly improves stability. Moreover, the mounting plane 51 can support the pressure block 3, resulting in better overall structural strength.
[0043] like Figures 4-7 As shown, the connection between the connecting part 4 and the pressure block 3 is as follows: the pressure block 3 has a central inner hole, and the pressure block 3 is fitted onto the connecting part 4 through the central inner hole. The outer peripheral surface of the connecting part 4 is clearance-fitted with the inner wall of the central inner hole, and the spring 6 is press-fitted into the inner side of the central inner hole. The fitting relationship between the connecting part 4 and the pressure block 3, combined with the aforementioned mounting plane 51, can limit the vertical movement of the pressure block 3, ensuring that the pressure block 3 will not shift vertically during movement, making the release of the spring force of the spring 6 more stable, thereby ensuring that the pressure block 3 can move stably in a straight line. A rib 41 protrudes along the length of the outer peripheral surface of the connecting part 4, and a groove 34 that mates with the rib 41 is provided on the inner wall of the central inner hole. The pressure block 3 can be guided and slid by the cooperation of the rib 41 and the groove 34. The cooperation of the rib 41 and the groove 34 can effectively ensure that the pressure block 3 will not deviate or rotate in the circumferential direction, so as not to cause the guide surface 311 that mates with the button to shift and affect the pressing, resulting in better overall stability.
[0044] like Figure 7 As shown, the connection method between the connecting part 4 and the mounting bracket 5 is as follows: the end of the columnar connecting part 4 has a threaded hole, and a through hole is provided on the side wall of the recess. The bolt passes through the through hole from the other side of the mounting bracket 5 and is threadedly connected and locked to the threaded hole on the connecting part 4.
[0045] As a preferred option, such as Figure 3 The movement path of the pressure block 3 is parallel to the plane containing the two edges 221 of the opening 22, moving laterally towards or away from the opening 22. This orientation facilitates the subsequent external force to push the pressure block 3 backward, resulting in better obstacle avoidance. Moreover, when the pressure block 3 moves laterally to press the button, the button is less likely to fall off, thus improving overall stability.
[0046] As a preferred option, such as Figure 4 and Figure 5 The pressure block 3 shown has an inclined guide surface 311 at its end near the placement part 2. The guide surface 311 is inclined in the direction away from the placement part 2 in the direction near the end of the pressure block 3. When the guide surface 311 contacts the button, it allows the button to move along the guide surface 311 to be pressed in smoothly. This design retains the advantage of the pressure block 3 moving laterally to avoid obstacles, and simplifies the movement of the pressure block 3 by only moving forward and backward to trigger the button press. The triggering is stable and efficient.
[0047] As a preferred option, such as Figure 6 A blocking part 52 protrudes from the mounting plane 51 shown. The blocking part 52 can form a stop with the side of the pressure block 3 to restrict the extension of the pressure block 3. The pressure block 3 includes a square part 33, a columnar part 32 and a top pressing part 31 in sequence along its length. The bottom surface of the square part 33 is a plane that fits against the mounting plane 51. The side of the square part 33 can form a stop with the side of the blocking part 52 to restrict the advancement of the pressure block 3. The side of the columnar part 32 and the top of the blocking part 52 form a stop to restrict the pressure block 3 from shifting towards the side closer to the placement part 2. The pressure block 3 of this application has a three-section structure along its length: a square section 33, a columnar section 32, and a top-pressing section 31. During forward movement, the square section 33 forms a barrier with the aforementioned blocking section 52 to limit the maximum travel of the pressure block 3. Furthermore, during the movement of the square section 33, the top of the blocking section 52 remains in contact with the side of the columnar section 32. The blocking section 52 prevents the pressure block 3 from moving towards the opening 22, thus preventing excessive pressure on the button. It also prevents damage to the internal components of the upper shell caused by excessive lateral pressure on the button when the pressure block 3 is pulled back by external force. This design improves the accuracy of the pressure block 3's movement and significantly enhances the overall assembly stability. Furthermore, the top of the blocking section 52 has an arc-shaped surface 521 facing the columnar section 32. The arc-shaped surface 521 mates with the outer periphery of the columnar section 32, and the columnar section 32 can move along the arc-shaped surface 521. The arc-shaped surface 521 on the blocking part 52 of this application is adapted to the outer periphery of the columnar part 32. The two fit together so that the force is more even and the movement is more stable. The arc-shaped surface 521 laterally wraps around a part of the columnar part 32, which can further improve the movement accuracy of the pressure block 3.
[0048] Example 2
[0049] This is another installation method for the pressure block 3 of this application. In this embodiment, the other structures are basically the same as those in Embodiment 1, except that: in the above-mentioned assembly loading device, a driving component is provided on one side of the base 1, and the pressure block 3 is connected to the driving component and is driven by the driving component to move closer to or away from the opening 22. The pressure block 3 of this application can be installed on the production line side of the upper tube assembly station. After the carrier is in place, the driving component drives the pressure block 3 to move towards the opening 22 to press the button and keep the upper shell assembly in the assembled state, which can also improve the assembly efficiency.
[0050] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
Claims
1. A loading device comprising a base (1) having a protruding placement portion (2) thereon, the placement portion (2) having a placement groove (21) for positioning materials, characterized in that, The placement part (2) has an opening (22) on its side that communicates with the placement groove (21). A horizontally movable pressure block (3) is provided on the side where the opening (22) is located, and the pressure block (3) moves closer to or away from the opening (22).
2. The assembly loading device according to claim 1, characterized in that, The base (1) has a protruding connecting part (4), the pressure block (3) is slidably connected to the connecting part (4), and a spring (6) is pressed on the connecting part (4). Under the elastic force of the spring (6), the pressure block (3) always maintains the tendency to extend out and cover the opening (22).
3. A loading vehicle according to claim 1, characterized in that, A driving component is provided on one side of the base (1), and the pressure block (3) is connected to the driving component and is driven to move closer to or away from the opening (22) by the driving component.
4. A loading vehicle according to claim 2, characterized in that, The opening (22) has two vertical edges (221), and the pressure block (3) is set close to the two edges (221). The movement path of the pressure block (3) is parallel to the plane where the two edges (221) are located.
5. A loading vehicle according to claim 1, 2, or 3, characterized in that, The end of the pressure block (3) has an inclined guide surface (311) on the side near the placement part (2), and the guide surface (311) is inclined toward the side away from the placement part (2) in the direction near the end of the pressure block (3).
6. A loading vehicle according to claim 2 or 4, characterized in that, The connecting part (4) is fixed on the mounting bracket (5) and the mounting bracket (5) has a horizontally arranged mounting plane (51). The bottom surface of the pressure block (3) is attached to the mounting plane (51) and the pressure block (3) is configured to move along the mounting plane (51).
7. A loading vehicle according to claim 6, characterized in that, The connecting part (4) has a columnar structure and is horizontally oriented. The pressure block (3) has a central inner hole. The pressure block (3) is fitted onto the connecting part (4) through the central inner hole. The outer peripheral surface of the connecting part (4) is in clearance fit with the inner wall of the central inner hole. The spring (6) is press-fitted into the inner side of the central inner hole. The connecting part (4) has a rib (41) protruding along its length on its outer peripheral surface. The inner wall of the central inner hole is provided with a groove (34) that cooperates with the rib (41). The pressure block (3) can slide guided by the cooperation of the rib (41) and the groove (34).
8. A loading vehicle according to claim 6, characterized in that, A blocking part (52) protrudes from the mounting plane (51), and the blocking part (52) can form a blocking and restricting the extension of the pressure block (3) with the side of the pressure block (3).
9. A loading vehicle according to claim 8, characterized in that, The pressure block (3) includes a square part (33), a columnar part (32) and a top pressing part (31) in sequence along its length. The bottom surface of the square part (33) is a plane that fits against the mounting plane (51) mentioned above. The side of the square part (33) can block and restrict the movement of the pressure block (3) with the side of the blocking part (52). The side of the columnar part (32) and the top of the blocking part (52) block and restrict the pressure block (3) from shifting toward the side closer to the placement part (2).
10. A loading vehicle according to claim 9, characterized in that, The top of the blocking part (52) is provided with an arc-shaped surface (521) facing the direction of the columnar part (32). The arc-shaped surface (521) cooperates with the outer periphery of the columnar part (32) and the columnar part (32) can be guided to move along the arc-shaped surface (521).