A cap loading device
By designing a cap feeding device, the automated assembly of implant needle caps was achieved, solving the problems of slow speed and contamination risk of traditional manual feeding, and improving production efficiency and sterility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TRUKING TECH LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional implant needles and caps are assembled manually, which is slow, labor-intensive, and poses a risk of contamination, making it difficult to meet sterility requirements.
A cap feeding device was designed, including a spacing mechanism, a translation mechanism, a lifting mechanism and a positioning mechanism. The device achieves uniform distribution, flipping and positioning of caps through an automated transfer mechanism, and realizes automatic assembly of syringes and caps by combining vacuum adsorption and positioning grippers.
It improves the feeding speed, reduces labor intensity, reduces the risk of contamination, meets aseptic requirements, has a simple and compact structure, and occupies little space.
Smart Images

Figure CN224491756U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food and pharmaceutical packaging equipment technology, and in particular to a cap feeding device. Background Technology
[0002] Implants have broad application prospects in fields such as anti-tumor, pain relief and ophthalmic medication. The drugs are stored in single-use syringes, which are disposable and very convenient to use. Due to their advantages such as long-lasting effect and sustained release, the demand is increasing day by day.
[0003] Traditional implant needle cap assembly involves manual feeding and alignment, resulting in slow feeding speed, high labor intensity, and the risk of contamination, making it difficult to meet aseptic requirements. Therefore, an automated cap feeding device that meets aseptic requirements is urgently needed in this field. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a cap feeding device that is simple and compact in structure, occupies little space, has a high degree of automation, and helps to avoid the pollution risk caused by manual operation.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A cap feeding device includes a separating mechanism, a translating mechanism, a lifting mechanism, a positioning mechanism located above the lifting mechanism, and a transfer mechanism for transferring caps from the translating mechanism to above the positioning mechanism. The separating mechanism and the positioning mechanism are respectively located on both sides of the translating mechanism. The transfer mechanism includes a picking component, a flipping component for driving the picking component to flip up and down, a transfer component for driving the picking component to move, and a lifting component for driving the picking component to lift up and down. The two ends of the transfer component are mounted on the machine frame platform via first columns. The lifting mechanism and the positioning mechanism are located between the first columns at both ends. The lifting component is mounted below the machine frame platform.
[0007] As a further improvement to the above technical solution: the spacing mechanism includes a dial wheel, the dial wheel is provided with multiple grooves along the circumferential direction, the translation mechanism includes a slider arranged along the tangent direction of the dial wheel and a slider drive component for driving the slider to move back and forth, the slider is provided with multiple vacuum adsorption grooves along the length direction, and the multiple vacuum adsorption grooves are arranged one-to-one with the multiple grooves.
[0008] As a further improvement to the above technical solution: the material picking assembly includes a rotatable material picking seat and a plurality of uniformly arranged material picking claws. The material picking seat is provided with a clearance step and a clearance groove. The material picking claws are located at the clearance step. One end of the clearance groove is connected to the clearance step, and the other end forms a cap limiting part.
[0009] As a further improvement to the above technical solution: the outer periphery of the dial is provided with a guardrail, and the guardrail is provided with a spring for moving the protective cap in the dial groove to the vacuum adsorption groove.
[0010] As a further improvement to the above technical solution: the spacing mechanism is installed above the frame platform via the second column, the translation mechanism is installed above the frame platform via the third column, the positioning mechanism is installed above the frame platform via the fourth column, the material picking component and the flipping component are disposed on the transfer component, and the transfer component is connected to the lifting component.
[0011] As a further improvement to the above technical solution: the flipping component includes a driving wheel disposed on the transfer component, a driven wheel disposed on the material taking component, and a synchronous belt wound around the driving wheel and the driven wheel.
[0012] As a further improvement to the above technical solution: the transfer assembly includes a connecting arm and a rotating shaft disposed at both ends of the connecting arm. The rotating shaft passes through the first column and has a swing arm at its upper end. The swing end of the swing arm is hinged to the end of the connecting arm. The material picking assembly and the flipping assembly are disposed on the connecting arm.
[0013] As a further improvement to the above technical solution: the lifting assembly includes a lifting drive component, a lifting screw connected to the lifting drive component, and a lifting nut seat disposed on the lifting screw, and the lower end of the rotating shaft is rotatably disposed on the lifting nut seat.
[0014] As a further improvement to the above technical solution: the lifting mechanism includes a lifting drive component, a lifting screw connected to the lifting drive component, a lifting nut seat provided on the lifting screw, and a push rod. The upper end of the push rod is provided with a positioning component, and the lower end is slidably provided on the lifting nut seat. The lifting nut seat is provided with an elastic component for lifting the push rod.
[0015] As a further improvement to the above technical solution, the positioning mechanism also includes a positioning gripper.
[0016] Compared with the prior art, the advantages of this utility model are:
[0017] The protective cap feeding device disclosed in this utility model uses an upward-facing opening and a limiting flange below the opening for conveying the protective cap. This lowers the center of gravity of the protective cap, improving stability during conveying. Furthermore, laminar airflow from the environment can blow into the opening, ensuring the cleanliness of the inside of the protective cap. A spacing mechanism separates the continuous protective caps at a set interval for uniform distribution. The uniformly distributed protective caps are transferred to a translation mechanism, which moves the protective caps below the picking component. A lifting component lowers the picking component to pick up the protective caps from the translation mechanism and then raises it. A flipping component rotates the picking component 180° so that the protective cap opening faces downward for assembly. Finally, a transfer component moves the picking component above a positioning mechanism, which positions the upper end of the syringe to align the syringe with the protective cap. A lifting mechanism lifts the syringe upward, completing the assembly of the syringe and protective cap. The overall structure is simple, compact, space-saving, and highly automated, helping to avoid the contamination risks associated with manual operation.
[0018] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the implant involved in this utility model, where a is a protective cap and b is a syringe.
[0020] Figure 2 This is a first-person perspective three-dimensional structural diagram of the initial state of the protective cap feeding device of this utility model.
[0021] Figure 3 This is a two-dimensional structural diagram of the cap feeding device of this utility model from the second perspective in its initial state.
[0022] Figure 4 This is a three-dimensional structural diagram of the material-retrieving component of this utility model when it retrieves the protective cap from the separating mechanism.
[0023] Figure 5 This is a three-dimensional structural diagram of the protective cap and syringe during the pressing process of this utility model.
[0024] Figure 6 This is a three-dimensional structural diagram of the protective cap and syringe during the pressing process of this utility model.
[0025] Figure 7 This is a three-dimensional structural diagram of the dividing mechanism in this utility model from a first-view perspective.
[0026] Figure 8 This is a three-dimensional structural diagram of the splitting mechanism in this utility model from a second perspective.
[0027] Figure 9This is a first-person perspective three-dimensional structural diagram of the transfer mechanism in this utility model.
[0028] Figure 10 This is a two-dimensional structural diagram of the transfer mechanism in this utility model from a second perspective.
[0029] Figure 11 This is a three-dimensional structural diagram of the material handling component and the flipping component in this utility model.
[0030] Figure 12 This is a three-dimensional structural diagram of the lifting mechanism in this utility model from a first-person perspective.
[0031] Figure 13 This is a three-dimensional structural diagram of the lifting mechanism in this utility model from a second perspective.
[0032] The labels in the diagram represent:
[0033] 11. Protective cap; 12. Syringe;
[0034] 2. Splitting mechanism; 21. Dial wheel; 211. Dial groove; 212. Guardrail; 213. Spring; 22. Translation mechanism; 221. Vacuum adsorption tank; 23. Slider drive component; 3. Lifting mechanism; 31. Lifting drive component; 32. Lifting screw; 33. Lifting nut seat; 34. Top rod; 341. Positioning component; 35. Elastic component; 36. Positioning mechanism; 4. Transfer mechanism; 41. Material handling assembly; 411. Material handling seat; 412. Material handling gripper; 413. Clearance Step; 414. Avoidance groove; 415. Protective cap limiting part; 42. Tilting assembly; 421. Drive wheel; 422. Driven wheel; 423. Synchronous belt; 43. Transfer assembly; 431. Connecting arm; 432. Rotating shaft; 433. Swing arm; 44. Lifting assembly; 441. Lifting drive component; 442. Lifting screw; 443. Lifting nut seat; 5. Frame platform; 51. First column; 52. Second column; 53. Third column; 54. Fourth column. Detailed Implementation
[0035] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying 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 utility model.
[0036] 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 utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0038] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0039] Figures 2 to 13 An embodiment of the present invention is shown. The cap feeding device of this embodiment includes a separating mechanism 2, a translation mechanism 22, a lifting mechanism 3, a positioning mechanism 36 disposed above the lifting mechanism 3, and a transfer mechanism 4 for transferring the cap 11 from the translation mechanism 22 to the position mechanism 36. The separating mechanism 2 and the positioning mechanism 36 are respectively disposed on both sides of the translation mechanism 22. The transfer mechanism 4 includes a picking component 41, a flipping component 42 for driving the picking component 41 to flip up and down, a transfer component 43 for driving the picking component 41 to move, and a lifting component 44 for driving the picking component 41 to lift up and down. The two ends of the transfer component 43 are installed above the frame platform 5 through the first columns 51. The lifting mechanism 3 and the positioning mechanism 36 are disposed between the first columns 51 at both ends. The lifting component 44 is installed below the frame platform 5. Preferably, the positioning mechanism 36 can be a positioning gripper (such as a pneumatic gripper, an electric gripper, etc.) to position the syringe 12 by clamping the outer tube at the upper end of the syringe 12. The positioning effect is good, and the syringe and other parts inside the outer tube can be moved upward under the action of the lifting mechanism 3 until the upper end of the syringe is assembled with the protective cap 11.
[0040] For details regarding the cap feeding device in this embodiment, please refer to [link / reference]. Figure 1 part a and Figure 7 , Figure 8The protective cap 11 is conveyed with its opening facing upwards and supported by a limiting flange below the opening. This lowers the center of gravity of the protective cap 11, improving stability during conveying. Furthermore, laminar airflow from the environment can blow into the opening, ensuring the cleanliness of the inside of the protective cap 11. The separating mechanism 2 separates the continuous protective caps 11 at a set interval to achieve uniform distribution. The uniformly distributed protective caps 11 are transferred to the translation mechanism 22, which moves the protective caps below the material handling component 41. The lifting component 44 then lowers the material handling component 41 from the translation mechanism 22. The cap 11 is picked up and then raised. The flipping component 42 drives the picking component 41 to flip 180° so that the opening of the cap 11 faces downwards for assembly. Finally, the transfer component 43 drives the picking component 41 to move above the positioning mechanism 36. The positioning mechanism 36 positions the upper end of the syringe 12 so that the syringe 12 and the cap 11 are aligned vertically. The lifting mechanism 3 lifts the syringe 12 upwards, thus completing the assembly of the syringe 12 and the cap 11. The overall structure is simple and compact, occupies little space, and has a high degree of automation, which helps to avoid the risk of contamination caused by manual operation.
[0041] See details Figure 7 and Figure 8 In this embodiment, the spacing mechanism 2 includes a dial wheel 21 with multiple grooves 211 along its circumference. The translation mechanism 22 includes a slider arranged tangentially to the dial wheel 21 and a slider drive component 23 (e.g., a linear module, synchronous belt, etc.) for driving the slider to reciprocate. The slider has multiple vacuum adsorption grooves 221 along its length, and each vacuum adsorption groove 221 corresponds to one of the multiple grooves 211. During operation, the dial wheel 21 rotates, and the slider moves synchronously. When the groove 211 rotates to a position tangential to the slider, the protective cap 11 inside the groove 211 is transferred to the vacuum adsorption groove 221, which uses negative pressure to adsorb and fix the protective cap 11. After each vacuum adsorption groove 221 has adsorbed the protective cap 11, the slider continues to move until it reaches below the material picking component 41.
[0042] See details Figure 10 and Figure 11In this embodiment, the material handling component 41 includes a rotatable material handling seat 411 and a plurality of uniformly arranged material handling grippers 412. The material handling seat 411 is provided with a clearance step 413 and a clearance groove 414. The material handling grippers 412 (e.g., pneumatic grippers or electric grippers) are located at the clearance step 413. One end of the clearance groove 414 is connected to the clearance step 413, and the other end forms a cap limiting part 415. Since the protective cap 11 is conveyed with its opening facing upwards, when the slider moves below the picking seat 411, the picking seat 411 descends, avoiding the step 413 and the groove 414 to avoid or accommodate the part of the protective cap 11 outside the vacuum adsorption tank 221 (the circumferential surface of the protective cap 11 and the limiting flange), facilitating the transfer of the protective cap 11 between the slider and the picking seat 411. Each picking claw 412 clamps the part of each protective cap 11 below the limiting flange in a corresponding manner to prevent the protective cap 11 from falling. The flipping component 42 drives the picking claw 412 to flip 180°, so that the opening of the protective cap 11 faces downwards. When the lifting mechanism 3 lifts upwards, the protective cap limiting part 415 can limit the upper end of the protective cap 11 to prevent the protective cap 11 from sliding upwards under force. The structure is reasonable and has good reliability.
[0043] See details Figure 8 In this embodiment, a guardrail 212 is provided on the outer periphery of the dial 21, and a spring piece 213 is provided on the guardrail 212 for moving the protective cap 11 in the dial 211 to the vacuum adsorption groove 221. When the dial 211 rotates to a position tangential to the slider, the elastic force of the spring piece 213, combined with the suction force of the vacuum adsorption groove 221, allows the protective cap 11 to be smoothly transferred from the dial 211 to the vacuum adsorption groove 221, further improving the stability and reliability of the device.
[0044] In a preferred embodiment, the separating mechanism 2 is mounted above the frame platform 5 via the second column 52, the translation mechanism 22 is mounted above the frame platform 5 via the third column 53, and the positioning mechanism 36 is mounted above the frame platform 5 via the fourth column 54. Similar to the transfer mechanism 4, the driving components of the separating mechanism 2 and the lifting mechanism 3 are also mounted below the frame platform 5, resulting in a compact structure and minimal space occupation. The material picking component 41 and the tilting component 42 are mounted on the transfer component 43, which is connected to the lifting component 44. That is, the lifting component 44 can drive the transfer component 43, the tilting component 42, and the material picking component 41 to rise and fall as a whole, the transfer component 43 can drive the tilting component 42 and the material picking component 41 to move as a whole, and the tilting component 42 drives the material picking component 41 to tilt. The layout is reasonable and occupies little space during operation. Of course, in other embodiments, the installation methods of each component can also be changed, as long as the various action processes of the material picking component 41 can be realized.
[0045] In a preferred embodiment, the flipping assembly 42 includes a drive wheel 421 (driven by a motor, for example) mounted on the transfer assembly 43 (specifically, the connecting arm 431 of the transfer assembly 43), a driven wheel 422 mounted on the picking assembly 41 (specifically, the picking seat 411 of the picking assembly 41), and a synchronous belt 423 wound around the drive wheel 421 and the driven wheel 422. When the picking gripper 412 clamps the protective cap 11 and rises to the set position, the drive wheel 421 rotates, the synchronous belt 423 drives the driven wheel 422 to rotate, and the picking seat 411 rotates 180° with the driven wheel 422, so that the opening of the protective cap 11 is arranged downwards, completing the flipping process. The structure is simple and reliable.
[0046] See details Figure 9 and Figure 10 In this embodiment, the transfer assembly 43 includes a connecting arm 431 and rotating shafts 432 (driven to rotate, for example, by a motor) located at both ends of the connecting arm 431. The rotating shafts 432 pass through the first column 51 and have swing arms 433 at their upper ends. The swing ends of the swing arms 433 are hinged to the ends of the connecting arm 431. The material-picking assembly 41 and the flipping assembly 42 are located on the connecting arm 431. As the rotating shafts 432 at both ends of the connecting arm 431 rotate synchronously, the swing arms 433 at both ends of the connecting arm 431 swing synchronously, which can drive the connecting arm 431 to move the material-picking assembly 41. See details below. Figures 2 to 6 The connecting arm 431 has both displacement along the direction of movement of the translation mechanism 22 and displacement perpendicular to the direction of movement of the translation mechanism 22, which facilitates the smooth reciprocating movement of the material picking component 41 above the slider and above the positioning mechanism 36. The structure is reasonable and effective.
[0047] Furthermore, in this embodiment, the lifting assembly 44 includes a lifting drive 441 (e.g., a motor), a lifting screw 442 connected to the lifting drive 441, and a lifting nut seat 443 disposed on the lifting screw 442. The lower end of the rotating shaft 432 is rotatably disposed on the lifting nut seat 443. When the material picking assembly 41 needs to be lifted, the lifting drive 441 drives the lifting screw 442 to rotate, and the lifting nut seat 443 moves up and down along the lifting screw 442, thereby driving the rotating shaft 432 to move up and down. The swing arm 433, the connecting arm 431, and the material picking assembly 41 move up and down synchronously with the rotating shaft 432. Since the lower end of the rotating shaft 432 is rotatably disposed on the lifting nut seat 443, the lifting nut seat 443 will not hinder the rotational movement of the rotating shaft 432, resulting in a simple and reliable structure.
[0048] See details Figure 12 and Figure 13In this embodiment, the lifting mechanism 3 includes a lifting drive 31 (e.g., a motor), a lifting screw 32 connected to the lifting drive 31, a lifting nut seat 33 on the lifting screw 32, and a lifting rod 34. The upper end of the lifting rod 34 is provided with a positioning element 341, and the lower end is slidably provided on the lifting nut seat 33. The lifting nut seat 33 is provided with an elastic element 35 (e.g., a coil spring) for lifting the lifting rod 34. After the cap 11 is positioned above the syringe 12, the lifting drive 31 drives the lifting screw 32 to rotate, and the lifting nut seat 33 moves upward along the lifting screw 32. At the same time, the elastic element 35 pushes the lifting rod 34 upward. The lifting rod 34 then lifts the syringe 12 and presses it against the cap 11. The elastic element 35 can act as a buffer to avoid rigid collisions that could damage the syringe 12, cap 11, and lifting mechanism 3. The structure is reasonable and effective.
[0049] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.
Claims
1. A cap feeding device, characterized in that: The system includes a spacing mechanism (2), a translation mechanism (22), a lifting mechanism (3), a positioning mechanism (36) located above the lifting mechanism (3), and a transfer mechanism (4) for transferring the cap (11) from the translation mechanism (22) to the position mechanism (36). The spacing mechanism (2) and the positioning mechanism (36) are respectively located on both sides of the translation mechanism (22). The transfer mechanism (4) includes a material picking component (41), a flipping component (42) for driving the material picking component (41) to flip up and down, a transfer component (43) for driving the material picking component (41) to move, and a lifting component (44) for driving the material picking component (41) to lift up and down. The two ends of the transfer component (43) are installed on the machine frame platform (5) through the first column (51). The lifting mechanism (3) and the positioning mechanism (36) are located between the first column (51) at both ends. The lifting component (44) is installed below the machine frame platform (5).
2. The cap feeding device according to claim 1, characterized in that: The spacing mechanism (2) includes a dial wheel (21), which has multiple grooves (211) along the circumferential direction. The translation mechanism (22) includes a slider arranged along the tangent direction of the dial wheel (21) and a slider drive (23) for driving the slider to move back and forth. The slider has multiple vacuum adsorption grooves (221) along the length direction, and the multiple vacuum adsorption grooves (221) are arranged one-to-one with the multiple grooves (211).
3. The cap feeding device according to claim 2, characterized in that: The material handling assembly (41) includes a rotatable material handling seat (411) and a plurality of uniformly arranged material handling claws (412). The material handling seat (411) is provided with a clearance step (413) and a clearance groove (414). The material handling claws (412) are located at the clearance step (413). One end of the clearance groove (414) is connected to the clearance step (413), and the other end forms a cap limiting part (415).
4. The cap feeding device according to claim 2, characterized in that: The dial (21) is provided with a guardrail (212) on its outer periphery. The guardrail (212) is provided with a spring piece (213) for moving the cap (11) in the dial groove (211) to the vacuum adsorption groove (221).
5. The cap feeding device according to claim 1, characterized in that: The splitting mechanism (2) is installed above the frame platform (5) via the second column (52), the translation mechanism (22) is installed above the frame platform (5) via the third column (53), the positioning mechanism (36) is installed above the frame platform (5) via the fourth column (54), the material picking component (41) and the flipping component (42) are located on the transfer component (43), and the transfer component (43) is connected to the lifting component (44).
6. The cap feeding device according to claim 5, characterized in that: The flipping assembly (42) includes a drive wheel (421) on the transfer assembly (43), a driven wheel (422) on the material taking assembly (41), and a timing belt (423) wound around the drive wheel (421) and the driven wheel (422).
7. The cap feeding device according to any one of claims 1 to 6, characterized in that: The transfer assembly (43) includes a connecting arm (431) and a rotating shaft (432) located at both ends of the connecting arm (431). The rotating shaft (432) passes through the first column (51) and has a swing arm (433) at its upper end. The swing end of the swing arm (433) is hinged to the end of the connecting arm (431). The material picking assembly (41) and the flipping assembly (42) are located on the connecting arm (431).
8. The cap feeding device according to claim 7, characterized in that: The lifting assembly (44) includes a lifting drive (441), a lifting screw (442) connected to the lifting drive (441), and a lifting nut seat (443) provided on the lifting screw (442). The lower end of the rotating shaft (432) is rotatably provided on the lifting nut seat (443).
9. The cap feeding device according to any one of claims 1 to 6, characterized in that: The lifting mechanism (3) includes a lifting drive (31), a lifting screw (32) connected to the lifting drive (31), a lifting nut seat (33) provided on the lifting screw (32), and a lifting rod (34). The upper end of the lifting rod (34) is provided with a positioning element (341), and the lower end is slidably provided on the lifting nut seat (33). The lifting nut seat (33) is provided with an elastic element (35) for lifting the lifting rod (34).
10. The cap feeding device according to any one of claims 1 to 6, characterized in that: The positioning mechanism (36) also includes positioning grippers.