A filling structure for a syringe

Abstract

This utility model discloses a filling structure for syringe bottles, including a support frame. The support frame includes a U-shaped plate, and a horizontal plate is fixedly connected to the top of the U-shaped plate. The core advantage of this filling structure for syringe bottles lies in the dynamic cooperation between the clamping component, the screw lifting mechanism, and the tubing. The clamping component precisely clamps the tubing at the bottom. Then, the first motor starts, driving the support plate and the liquid inside the clamped section of the tube to rise at a uniform speed via the screw. This process is similar to "manual lifting." Utilizing the elastic recovery of the tubing itself, a precise and contamination-free liquid column is formed in the closed pipeline, flowing towards the syringe bottle. After reaching the predetermined height, the clamping component releases, and then the first motor is restarted, causing the support plate to quickly reset, preparing for the next cycle. This "clamping-lifting-releasing-resetting" cycle simulates the most reliable manual filling principle, but achieves automation and precision through a mechanical structure.

Description

Technical Field

[0001] This utility model relates to the field of needle-shaped bottle filling technology, specifically a filling structure for needle-shaped bottles. Background Technology

[0002] In the pharmaceutical and biological products industry, syringe vials (or ampoules) are a commonly used sealed container for liquid injections. Their filling is a critical step in the production process, requiring extremely high levels of filling accuracy, aseptic technique, and operational efficiency.

[0003] In the prior art, the filling structure for syringe bottles usually includes a filling pump, a delivery pipeline and a filling needle. During filling, the liquid medicine is injected into the syringe bottle at the filling station through the filling needle by the pump. This filling method usually results in a large amount of medicine residue being injected into the inside of the syringe bottle, affecting the quality of the product. At the same time, the accuracy of filling is also insufficient.

[0004] Therefore, further optimizations are needed to address the aforementioned issues. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a filling structure for needle-shaped bottles, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a filling structure for needle-shaped bottles, comprising, A support frame, comprising a U-shaped plate, a horizontal plate fixedly connected to the top of the U-shaped plate, a top plate for limiting the hose is provided on the top of the horizontal plate by a support rod, and hose docking assemblies are evenly arranged on the upper surface of the horizontal plate. A drug filling tube is provided on the top of the hose docking assembly, wherein the other end of the drug filling tube passes through the top plate and is connected to the filling needle. The filling assembly includes a first motor equidistantly positioned at the bottom of the U-shaped plate. The output end of the first motor passes through the U-shaped plate and is connected to a lead screw via a coupling. The top end of the lead screw is rotatably connected to the inside of a horizontal plate. A support plate is threaded onto the surface of the lead screw. A second motor is positioned on the upper surface of the support plate. A fixed cylinder is positioned outside the shaft end of the second motor. The top end of the fixed cylinder passes through the horizontal plate and is fixedly connected to a protective cover. Rotatable clamping components are symmetrically positioned on the front of the protective cover. A transmission component that drives the clamping components to rotate is located inside the protective cover and is driven by the second motor.

[0007] Preferably, the hose docking assembly includes a support column fixedly connected to the upper surface of the horizontal plate, a strip plate fixedly connected to the top of the support column, a notch on the upper surface of the strip plate, a limiting block at the top of the notch on the upper surface of the strip plate, and a bidirectional connector for docking with the hose inside the limiting block.

[0008] Preferably, the bottom end of the injection tube is connected to the top of the bidirectional connector, the bottom of the bidirectional connector is connected to the drug storage device via a hose, the output end of the first motor is provided with a fixing seat by bolts near the fixed cylinder, and the top plate is provided with a positioning component for clamping the injection tube to reduce liquid backflow.

[0009] Preferably, a protective chain for protecting the cable is provided on one side of the U-shaped plate and near the second motor on the support plate. The U-shaped plate has a partition inside, and an auxiliary plate for support is provided between the partition and the bottom plate of the U-shaped plate. The support plate is located at the top of the partition, and a vertical shaft is fixedly connected to the upper surface of the partition. The vertical shaft passes through the support plate and is fixedly connected to the lower surface of the horizontal plate.

[0010] Preferably, the transmission component includes a worm gear located at the output end of the second motor. The worm gear is located inside the fixed cylinder, and its top extends into the interior of the protective cover and is meshed with a turbine. A gear one is fixedly connected to the front end of the turbine, and a gear two that meshes with gear one is provided inside the protective cover.

[0011] Preferably, the clamping member includes an eccentric rod located at the center of gear one and gear two, a fixed shaft is fixedly connected to the edge of the other side of the eccentric rod, and a roller is sleeved on the surface of the fixed shaft.

[0012] This utility model has the following beneficial effects: This is a filling structure for syringes. The core advantage of this structure lies in the dynamic coordination between the clamping component, the screw lifting mechanism, and the tubing. The clamping component precisely clamps the tubing at the bottom. Then, the first motor starts, driving the support plate and the liquid inside the clamped section of the tube to rise at a uniform speed via the screw. This process is similar to "manual lifting." Utilizing the elastic recovery of the tubing itself, a precise and contamination-free liquid column is formed in the closed pipeline and flows towards the syringe. After reaching the predetermined height, the clamping component releases, and then the first motor is started again, causing the support plate to quickly reset, ready for the next cycle. This "clamping-lifting-releasing-resetting" cycle simulates the most reliable manual filling principle, but achieves automation and precision through the mechanical structure. This is a filling structure for syringe bottles. The filling power of this structure relies entirely on the mechanical squeezing of the tubing and the elastic recovery of the tubing itself, which is a purely physical action. The liquid medicine only comes into contact with the disposable or clean inner wall of the tubing throughout the process, completely avoiding contact with any complex metal pump body, rotary seal or valve structure. This eliminates the risk of contamination of the liquid medicine by metal or rubber debris (drug residue) due to mechanical wear. It is suitable for filling formulations with extremely high aseptic requirements. This syringe-type bottle filling structure precisely controls the filling volume using two key parameters: the lifting height of the support plate each time (determined by the number of rotations of the lead screw) and the number of cycles of the lifting action. Both parameters can be precisely controlled digitally by a motor, ensuring that the filling volume of each bottle is highly consistent and effectively avoiding errors caused by the inaccuracy of traditional flow meters or pumps or fluid pulsation. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front view structural diagram of the present invention; Figure 3 This is a schematic diagram of the U-shaped plate of this utility model from another perspective; Figure 4 This is a schematic diagram of the U-shaped plate part of this utility model; Figure 5 This is a schematic diagram of the internal structure of the protective cover of this utility model; Figure 6 This utility model Figure 4 Enlarged structural diagram at point A in the middle; Figure 7 This utility model Figure 4 Enlarged structural diagram at point B.

[0014] The components include: 1. U-shaped plate; 2. Horizontal plate; 3. Top plate; 4. Hose docking assembly; 401. Support column; 402. Strip plate; 403. Notch; 404. Limiting block; 405. Two-way connector; 5. First motor; 6. Lead screw; 7. Support plate; 8. Second motor; 9. Fixed cylinder; 10. Protective cover; 11. Clamping component; 1101. Eccentric rod; 1102. Fixed shaft; 1103. Roller; 12. Injection tube; 13. Fixed seat; 14. Protective chain; 15. Worm gear; 16. Turbine; 17. Gear one; 18. Gear two; 19. Partition plate; 20. Vertical shaft. Detailed Implementation

[0015] 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.

[0016] Please see Figures 1 to 7This utility model provides a filling structure for syringe bottles; it includes a support frame, which includes a U-shaped plate 1. A horizontal plate 2 is fixedly connected to the top of the U-shaped plate 1. A top plate 3 for limiting the position of the tubing is provided on the top of the horizontal plate 2 via a support rod. Tube docking components 4 are evenly arranged on the upper surface of the horizontal plate 2. A dispensing tube 12 is provided on the top of the dispensing component 4. The other end of the dispensing tube 12 passes through the top plate 3 and is connected to the filling needle (not shown in the figure). The top plate 3 has a positioning element for clamping the dispensing tube 12 to reduce liquid backflow. The positioning components, including but not limited to solenoid valves and clamp valves, can intercept the liquid inside the filling tube 12 after it passes through the top plate 3, thereby reducing backflow.

[0017] The hose docking assembly 4 includes a support column 401 fixedly connected to the upper surface of the horizontal plate 2. A strip plate 402 is fixedly connected to the top of the support column 401. A notch 403 is provided on the upper surface of the strip plate 402. A limiting block 404 is provided on the upper surface of the strip plate 402 at the top of the notch 403. A bidirectional connector 405 for docking with the hose is provided inside the limiting block 404.

[0018] The bottom end of the filling tube 12 is connected to the top of the two-way connector 405. The bottom of the two-way connector 405 is connected to the medicine storage device through a hose. The output end of the first motor 5 is near the fixed cylinder 9 and is provided with a fixing seat 13 by bolts. The fixing seat 13 is connected by bolts, which can connect the fixed cylinder 9 to the first motor 5 and maintain its stability in use.

[0019] The filling assembly has a first motor 5 equidistantly arranged at the bottom of the U-shaped plate 1. The output end of the first motor 5 passes through the U-shaped plate 1 and is connected to a lead screw 6 via a coupling. The top end of the lead screw 6 is rotatably connected to the inside of the horizontal plate 2. A support plate 7 is threadedly connected to the surface of the lead screw 6. A second motor 8 is provided on the upper surface of the support plate 7. A fixed cylinder 9 is provided outside the shaft end of the second motor 8. The top end of the fixed cylinder 9 passes through the horizontal plate 2 and is fixedly connected to a protective cover 10. Rotatable clamping parts 11 are symmetrically arranged on the front of the protective cover 10. A transmission component that drives the clamping parts 11 to rotate is provided inside the protective cover 10, which is driven by the second motor 8.

[0020] On one side of the U-shaped plate 1, near the second motor 8, there is a protective chain 14 for protecting the cable (the cable can be threaded inside the protective chain 14, and when the second motor 8 moves upward, the connected cable part can be protected); the U-shaped plate 1 has a partition 19 inside, and an auxiliary plate for support is provided between the partition 19 and the bottom plate of the U-shaped plate 1. The support plate 7 is located on the top of the partition 19, and a vertical shaft 20 is fixedly connected to the upper surface of the partition 19. The vertical shaft 20 passes through the support plate 7 and is fixedly connected to the lower surface of the horizontal plate 2.

[0021] The transmission component includes a worm gear 15 located at the output end of the second motor 8. The worm gear 15 is located inside the fixed cylinder 9, and its top extends into the interior of the protective cover 10 and is meshed with a turbine 16. The front end of the turbine 16 is fixedly connected to a gear 17. The interior of the protective cover 10 is provided with a gear 18 that meshes with the gear 17.

[0022] The clamping member 11 includes an eccentric rod 1101 located at the center of gear 17 and gear 2 18. A fixed shaft 1102 is fixedly connected to the edge of the other side of the eccentric rod 1101. A roller 1103 is sleeved on the surface of the fixed shaft 1102.

[0023] When the roller 1103 is clamped on the surface of the filling tube 12 and moves upward, the roller 1103 rotates synchronously. When the second motor 8 is started, it can drive the worm gear 15 to rotate. Since the top of the worm gear is meshed with the turbine 16, it synchronously drives the first gear 16 and the second gear 17 to rotate synchronously, so that the two rollers 1103 at the clamping part 11 move closer to each other and separate, which facilitates clamping and filling the filling tube 12.

[0024] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0025] In this invention, the working steps of the device are as follows: When in use, place the filling structure at the filling station, connect the hose from the medicine storage device to the bottom of the two-way connector 405, and connect the filling needle (not shown in the figure) to the top of the filling tube 12 that passes through the top plate 3 through the pipeline. The first motor 5 is driven to rotate, and the support plate 7 is lowered to its lowest initial position via the lead screw 6. At this time, the two rollers 1103 on the clamping member 11 are exactly located on the lower section of the filling tube 12 near its connection with the bidirectional connector 405; The second motor 8 is controlled to rotate, and through the transmission components consisting of worm gear 15, turbine 16, gear one 17 and gear two 18, the two eccentric rods 1101 are driven to rotate in opposite directions, so that the two rollers 1103 change from the separated state to the closed state, thereby firmly clamping the lower section of the medicine filling tube 12. Maintaining the clamping state of the clamping member 11, start the first motor 5 to rotate in the forward direction. The first motor 5 drives the lead screw 6 to rotate, which drives the support plate 7 to rise steadily along the vertical axis 20. The support plate 7 drives the clamped drug delivery tube 12 segment to move upward synchronously through the second motor 8, the fixed cylinder 9 and the protective cover 10. As the tube section is clamped and lifted, the liquid medicine inside is squeezed, forming an upward liquid column pulse. This liquid column pulse is injected into the inside of the syringe via the filling tube 12 and the filling needle. The positioning component (such as the tube clamp valve) in the top plate 3 at this time plays the role of preventing the liquid medicine from flowing back. When the support plate 7 rises to the preset height corresponding to the single filling volume, the first motor 5 stops. Subsequently, the second motor 8 is reversed, and the two rollers 1103 rotate away from each other through the transmission component, releasing the clamp on the filling tube 12. After the clamp is released, the squeezed and deformed filling tube 12 returns to its original shape under its own elasticity. At the same time, liquid medicine is drawn from the medicine storage device for the next filling. Then, the first motor 5 is reversed, driving the support plate 7 to descend quickly and return to the initial position, ready for the next clamping. Finally, repeat the above steps.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filling structure for needle-shaped bottles, characterized in that: include, The support frame includes a U-shaped plate (1), a horizontal plate (2) is fixedly connected to the top of the U-shaped plate (1), and a top plate (3) for limiting the hose is provided on the top of the horizontal plate (2) by a support rod. The upper surface of the horizontal plate (2) is uniformly provided with hose docking components (4), and the top of the hose docking components (4) is provided with a drug filling tube (12), wherein the other end of the drug filling tube (12) passes through the top plate (3) and is connected to the filling needle. The filling assembly has a first motor (5) equidistantly arranged at the bottom of the U-shaped plate (1). The output end of the first motor (5) passes through the U-shaped plate (1) and is connected to a lead screw (6) via a coupling. The top end of the lead screw (6) is rotatably connected to the inside of the horizontal plate (2). The surface of the lead screw (6) is threadedly connected to a support plate (7). A second motor (8) is provided on the upper surface of the support plate (7). A fixed cylinder (9) is provided outside the shaft end of the second motor (8). The top end of the fixed cylinder (9) passes through the horizontal plate (2) and is fixedly connected to a protective cover (10). Rotatable clamping parts (11) are symmetrically arranged on the front of the protective cover (10). A transmission part for driving the clamping parts (11) to rotate is provided inside the protective cover (10), which is driven by the second motor (8).

2. The filling structure for a needle-shaped bottle according to claim 1, characterized in that: The hose docking assembly (4) includes a support column (401) fixedly connected to the upper surface of the cross plate (2), a strip plate (402) fixedly connected to the top of the support column (401), a notch (403) is provided on the upper surface of the strip plate (402), a limiting block (404) is provided on the upper surface of the strip plate (402) at the top of the notch (403), and a bidirectional connector (405) for docking with the hose is provided inside the limiting block (404).

3. The filling structure for a needle-shaped bottle according to claim 2, characterized in that: The bottom end of the injection tube (12) is connected to the top of the two-way connector (405). The bottom of the two-way connector (405) is connected to the drug storage device through a hose. The output end of the first motor (5) is provided with a fixing seat (13) near the fixed cylinder (9) by bolts. The top plate (3) is provided with a positioning component for clamping the injection tube (12) to reduce liquid backflow.

4. The filling structure for a needle-shaped bottle according to claim 3, characterized in that: A protective chain (14) for protecting the cable is provided on one side of the U-shaped plate (1) and near the second motor (8) of the support plate (7). The U-shaped plate (1) has a partition (19) inside. An auxiliary plate for support is provided between the partition (19) and the bottom plate of the U-shaped plate (1). The support plate (7) is located at the top of the partition (19). A vertical shaft (20) is fixedly connected to the upper surface of the partition (19). The vertical shaft (20) passes through the support plate (7) and is fixedly connected to the lower surface of the horizontal plate (2).

5. The filling structure for a needle-shaped bottle according to claim 4, characterized in that: The transmission component includes a worm (15) located at the output end of the second motor (8). The worm (15) is located inside the fixed cylinder (9), and its top extends into the interior of the protective cover (10) and is meshed with a turbine (16). The front end of the turbine (16) is fixedly connected to a gear one (17). The interior of the protective cover (10) is provided with a gear two (18) that meshes with the gear one (17).

6. The filling structure for a needle-shaped bottle according to claim 5, characterized in that: The clamping member (11) includes an eccentric rod (1101) located at the center of gear one (17) and gear two (18), and a fixed shaft (1102) is fixedly connected to the edge of the other side of the eccentric rod (1101), and a roller (1103) is sleeved on the surface of the fixed shaft (1102).

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