Mechanical structure for finely adjusting filling amount

Abstract

The utility model discloses a mechanical structure for finely adjusting the filling amount. The mechanical structure comprises a fine adjustment assembly, a valve element is arranged in the filling pipe, and the upper end of the valve element penetrates through the filling pipe and is connected to the output end of the air cylinder through a connecting rod. The fine adjustment assembly is connected to a shell of the air cylinder. The output end of the air cylinder stretches and retracts up and down to drive the valve element to move to achieve filling opening and closing. The fine adjustment assembly drives the air cylinder to move up and down, and then the valve element is driven to move to achieve filling opening and closing fine adjustment. The fine adjustment assembly comprises a turbine and a worm. The worm wheel is connected with the worm in a meshed mode, the inner wall of the worm wheel is connected with a lead screw nut, the inner side of the lead screw nut is in threaded connection with an outer threaded sleeve, and the upper end of the outer threaded sleeve is connected with a shell of the air cylinder. The mechanical structure capable of finely adjusting the filling amount aims at overcoming the existing defects, and the problem of finely adjusting the filling amount can be effectively solved.

Description

Technical Field

[0001] This utility model relates to a mechanical structure for finely adjusting the filling volume. Background Technology

[0002] Pharmaceutical solution filling is a crucial step in the pharmaceutical industry to ensure accurate dosage and sterility of pharmaceutical solutions. Its core objective is to precisely inject a quantitative amount of pharmaceutical solution into packaging containers (such as vials, ampoules, and oral liquid bottles) while meeting the stringent requirements of GMP (Good Manufacturing Practice) for sterility, freedom from cross-contamination, and precision control.

[0003] The opening degree of the valve core of the existing filling valve is fixed, and the filling volume of the medicine cannot be finely adjusted. Therefore, a mechanical structure for finely adjusting the filling volume is proposed to address the above problems. Utility Model Content

[0004] The purpose of this invention is to overcome the existing defects by providing a mechanical structure for fine-tuning the filling volume, which can effectively solve the problem of fine-tuning the filling volume.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mechanical structure for fine-tuning the filling volume, including a fine-tuning component; a valve core is provided inside the filling tube, the upper end of the valve core passes through the filling tube and is connected to the output end of the cylinder through a connecting rod; the fine-tuning component is connected to the outer shell of the cylinder;

[0006] The cylinder's output end extends and retracts vertically, causing the valve core to move and thus opening and closing the filling process; the fine-tuning component moves the cylinder up and down, thereby causing the valve core to move and thus making minor adjustments to the filling process.

[0007] Preferably, the fine-tuning assembly includes a turbine and a worm gear; the turbine and the worm gear are meshed together, a lead screw nut is connected to the inner wall of the turbine, an external threaded sleeve is threaded to the inner side of the lead screw nut, and the upper end of the external threaded sleeve is connected to the outer shell of the cylinder.

[0008] Preferably, it also includes a stepper motor, the end face of which is connected to a worm gear bracket, the output end of which passes through the worm gear bracket and is connected to one end of the worm, and the other end of the worm is rotatably connected to a worm gear mounting base.

[0009] Preferably, it also includes a limiting pin, with an elongated slot provided on the worm gear bracket, one end of the limiting pin being connected to the outer shell of the cylinder, and the other end being slidably connected in the elongated slot.

[0010] Preferably, the upper end of the filling tube is connected to a material inlet.

[0011] Preferably, the upper end of the filling tube is connected to a mounting bracket, the upper end of the mounting bracket is connected to a mounting plate, the worm gear bracket is connected to the side wall of the mounting plate, the worm gear mounting seat is connected to one side of the upper end face of the mounting plate, and the turbine is rotatably connected to the upper end face of the mounting plate.

[0012] Preferably, the inner wall of the turbine is connected to the lead screw nut by a single key.

[0013] Preferably, the connecting rod is located inside the external threaded sleeve.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This mechanical structure for fine-tuning the filling volume uses a fine-tuning component connected to the outer shell of the cylinder; the fine-tuning component drives the cylinder to move up and down, which in turn drives the valve core to move, thus achieving a slight adjustment of the filling volume. This allows for minute variations in the valve core opening degree, achieving the purpose of fine-tuning the filling volume. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is an isometric view of the mechanical structure for fine-tuning the filling volume of this utility model;

[0017] Figure 2 This is a front view of the mechanical structure for fine-tuning the filling volume of this utility model;

[0018] Figure 3 This is a side view of the mechanical structure for fine-tuning the filling volume of this utility model;

[0019] Figure 4 This is a cross-sectional view of the mechanical structure for fine-tuning the filling volume of this utility model;

[0020] Figure 5 This is a top view of the mechanical structure for fine-tuning the filling volume of this utility model.

[0021] In the diagram: 1. Cylinder; 2. Worm gear; 4. Turbine; 5. Connecting rod; 6. Valve core; 7. Stepper motor; 8. Filling pipe; 10. Mounting bracket; 11. Screw nut; 12. External threaded sleeve; 13. Worm gear bracket; 14. Worm gear mounting seat; 15. Limit pin; 16. Material inlet; 17. Mounting plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 A mechanical structure for fine-tuning filling volume includes a fine-tuning component; a valve core 6 is installed inside the filling tube 8, and the upper end of the valve core 6 passes through the filling tube 8 and is connected to the output end of the cylinder 1 through a connecting rod 5; the fine-tuning component is connected to the outer shell of the cylinder 1; wherein, the output end of the cylinder 1 extends and retracts up and down, driving the valve core 6 to move to realize the opening and closing of the filling volume; the fine-tuning component drives the cylinder 1 to move up and down, thereby driving the valve core 6 to move to realize the fine adjustment of the opening and closing of the filling volume.

[0024] Specifically, the fine-tuning assembly includes a turbine 4 and a worm gear 2; the turbine 4 and worm gear 2 are meshed together, and the inner wall of the turbine 4 is connected to a lead screw nut 11, which is connected to the lead screw nut 11 via a single key. The inner thread of the lead screw nut 11 is connected to an external threaded sleeve 12, and the upper end of the external threaded sleeve 12 is connected to the outer shell of the cylinder 1. The connecting rod 5 is located inside the external threaded sleeve 12.

[0025] Specifically, it also includes a stepper motor 7, the end face of which is connected to a worm gear bracket 13. The output end of the stepper motor 7 passes through the worm gear bracket 13 and connects to one end of the worm gear 2. The other end of the worm gear 2 is rotatably connected to the worm gear mounting base 14. It also includes a limiting pin 15. A long slot is opened on the worm gear bracket 13. One end of the limiting pin 15 is connected to the housing of the cylinder 1, and the other end is slidably connected in the long slot.

[0026] Specifically, the upper end of the filling pipe 8 is connected to the material inlet 16.

[0027] Specifically, the upper end of the filling tube 8 is connected to the mounting bracket 10, the upper end of the mounting bracket 10 is connected to the mounting plate 17, the worm gear bracket 13 is connected to the side wall of the mounting plate 17, the worm gear mounting seat 14 is connected to one side of the upper end face of the mounting plate 17, and the turbine 4 is rotatably connected to the upper end face of the mounting plate 17.

[0028] Specifically, when cylinder 1 retracts, it lifts connecting rod 5 and valve core 6 upwards, with the valve core opening at 0 degrees; when cylinder 1 extends, it moves connecting rod 5 and valve core 6 downwards, with the valve core 6 opening at a certain gap, allowing material to flow out from the gap.

[0029] During fine-tuning, the stepper motor 7 rotates, driving the worm gear 2 to rotate. The worm gear 2 rotates, driving the turbine 4 to rotate. The turbine 4 rotates, driving the lead screw nut 11 to rotate. The lead screw nut 11 rotates, causing the external threaded sleeve 12 to rise axially within the lead screw nut 11. The axial rise of the external threaded sleeve 12 drives the cylinder 1 to rise. The rise of the cylinder 1 drives the connecting rod 5 and the valve core 6 to lift upwards, fine-tuning the valve core opening degree to make the valve core opening degree smaller. When the stepper motor 7 reverses, it can drive the valve core 6 to move downwards, fine-tuning the valve core opening degree to make the valve core opening degree larger.

[0030] This mechanical structure for fine-tuning the filling volume uses a fine-tuning component connected to the outer shell of cylinder 1. The fine-tuning component moves cylinder 1 up and down, which in turn moves valve core 6 to achieve minute adjustments to the filling volume. This allows for slight variations in the valve core opening degree, thus achieving the purpose of fine-tuning the filling volume.

[0031] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mechanical structure for fine tuning the filling quantity, characterized in that, Includes a fine-tuning component; a valve core (6) is installed inside the filling tube (8), the upper end of the valve core (6) passes through the filling tube (8) and is connected to the output end of the cylinder (1) through a connecting rod (5); the fine-tuning component is connected to the outer shell of the cylinder (1); The cylinder (1) extends and retracts up and down, driving the valve core (6) to move and achieve filling opening and closing; the fine-tuning component drives the cylinder (1) to move up and down, thereby driving the valve core (6) to move and achieve fine adjustment of filling opening and closing.

2. The mechanical structure for fine-tuning filling volume according to claim 1, characterized in that, The fine-tuning assembly includes a turbine (4) and a worm (2); the turbine (4) and the worm (2) are meshed together, the inner wall of the turbine (4) is connected to a lead screw nut (11), the inner side of the lead screw nut (11) is threadedly connected to an external threaded sleeve (12), and the upper end of the external threaded sleeve (12) is connected to the outer shell of the cylinder (1).

3. The micro-adjustable fill level mechanical structure according to claim 2, wherein, It also includes a stepper motor (7), the end face of which is connected to a worm gear bracket (13). The output end of the stepper motor (7) passes through the worm gear bracket (13) and is connected to one end of the worm (2). The other end of the worm (2) is rotatably connected to the worm gear mounting base (14).

4. The micro-adjustable fill level mechanical structure according to claim 3, wherein, It also includes a limiting pin (15), and a long slot is opened on the worm gear bracket (13). One end of the limiting pin (15) is connected to the outer shell of the cylinder (1), and the other end is slidably connected in the long slot.

5. The micro-adjustable fill level mechanical structure according to claim 3, wherein, The upper end of the filling tube (8) is connected to a material inlet (16).

6. The micro-adjustable fill level mechanical structure according to claim 3, wherein, The upper end of the filling tube (8) is connected to a mounting bracket (10), the upper end of the mounting bracket (10) is connected to a mounting plate (17), the worm gear bracket (13) is connected to the side wall of the mounting plate (17), the worm gear mounting seat (14) is connected to one side of the upper end face of the mounting plate (17); the turbine (4) is rotatably connected to the upper end face of the mounting plate (17).

7. The micro-adjustable fill level mechanical structure according to claim 2, wherein, The inner wall of the turbine (4) is connected to the lead screw nut (11) by a single key.

8. The micro-adjustable fill level mechanical structure according to claim 2, wherein, The connecting rod (5) is located inside the external threaded sleeve (12).

Images