Ampoule bottle opening device and dilution standard preparation instrument

Abstract

The utility model discloses an ampoule bottle opening device and a dilution standard preparation instrument, which belong to the technical field of medicine preparation and comprise a clamping component for clamping an ampoule bottle, a cutting component for cutting the ampoule bottle and a knocking component for knocking the ampoule bottle, the clamping assembly comprises a clamping part used for clamping the ampoule bottle and a rotating part used for driving the clamping part to rotate, a rotating shaft of the clamping part coincides with the axis of the ampoule bottle clamped by the clamping part, the ampoule bottle on the clamping part can be driven to rotate by driving the clamping part to rotate through the rotating part, and when the rotating part drives the clamping part to rotate, the ampoule bottle on the clamping part can be driven to rotate. After the grinding wheel is in contact with the neck part of the ampoule bottle, the rotating part drives the ampoule bottle to rotate to generate a circle of scratches on the neck part of the ampoule bottle, the breakage path when the bottle cap and the bottle body of the ampoule bottle are broken is controlled through the annular scratches, and the rear section of the breakage path is prevented from being uncontrollably broken; the solution pollution risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of solution preparation technology, specifically to an ampoule opening device and a dilution and labeling instrument. Background Technology

[0002] Ampoules are small, sealed containers used to hold solutions. They are usually made of glass and have high sealing and sterility properties. They are widely used in medical and laboratory testing fields. Because ampoules are extremely airtight, it is necessary to ensure safe operation when opening them and avoid contaminating the solution with glass fragments. Therefore, opening them is very troublesome. Existing opening methods are generally done manually, which is slow and prone to contamination, and it is difficult to meet the requirements of modern laboratories and unmanned laboratories.

[0003] Chinese utility model patent CN111960358B discloses an ampoule opening device, specifically an ampoule opening device. The technical problem it addresses is how to design an ampoule opening device capable of opening multiple ampoules at once, improving work efficiency and saving manpower. To solve this problem, an ampoule opening device is provided, comprising: a mounting platform with a sliding frame slidably connected to its top, the sliding frame having a certain frictional force with the mounting platform; a first return spring connected between the sliding frame and the mounting platform; a collection frame connected to one side of the mounting platform, with an inclined plate connected to its top; a movable cutting component disposed between the mounting platform and the sliding frame; and a pushing component disposed on the mounting platform. This solution achieves the effect of opening ampoules through the coordinated operation of the movable cutting component and the pushing component.

[0004] The aforementioned patent enables automatic ampoule opening, saving manpower. However, when the grinding wheel contacts the ampoule, the grinding wheel rotates at high speed while the relative position between the grinding wheel and the ampoule remains unchanged. This results in the grinding wheel being unable to form a full circle of scratches around the neck of the ampoule, but only a small scratch at the contact point. The purpose of forming scratches on the ampoule is to control stress concentration and guide the fracture path, transforming the originally random brittle fracture into a controllable process. The inability to form a full circle of scratches around the neck of the ampoule means that the fracture location of the ampoule cannot be precisely controlled during the final opening process, which may lead to breakage and contamination of the solution or other media inside the ampoule.

[0005] Based on this, the present invention designs an ampoule opening device to solve the above problems. Utility Model Content

[0006] This invention provides an ampoule opening device to solve the technical problem that existing opening devices cannot form a full-circle scratch on the neck of the ampoule.

[0007] According to one aspect of the present invention, an ampoule opening device is provided, comprising a clamping assembly for clamping an ampoule, a cutting assembly for cutting the ampoule, and a striking assembly for striking the ampoule. The clamping assembly includes a clamping part for clamping the ampoule and a rotating part for driving the clamping part to rotate. The rotating part is used to drive the clamping part to rotate along the axis of the clamped ampoule.

[0008] As a further embodiment of this utility model, the cutting assembly includes a gripper, an elastic mounting part, and a grinding wheel for contacting the ampoule. The grinding wheel is elastically slidably mounted on the gripper through the elastic mounting part, and the sliding direction of the grinding wheel is perpendicular to the axis of the grinding wheel.

[0009] As a further embodiment of this utility model, the gripper includes multiple movable parts, each of which is provided with at least one grinding wheel. The gripper has a first state for driving the edge of the grinding wheel to contact the position to be cut on the ampoule, and a second state for driving the grinding wheel to disengage from the ampoule. The cutting assembly also includes a driving member for driving the movable parts to move so that the gripper switches between the first state and the second state. The multiple grinding wheels are arranged at equal intervals or symmetrically along the circumference in the first state of the gripper, thereby applying uniform pressure to the ampoule along the circumference or symmetrical pressure to both sides.

[0010] As a further embodiment of this utility model, the gripper includes two symmetrically arranged movable parts, and two grinding wheels are mounted on each movable part through an elastic mounting part. The grinding wheels on the two movable parts are symmetrically arranged about the symmetrical surfaces of the two movable parts.

[0011] As a further embodiment of this utility model, the elastic mounting part includes a slide rod, a slider, and a spring. The first end of the slide rod is fixed on the gripper, the slider is slidably disposed on the slide rod along the length direction of the slide rod and is used to mount the grinding wheel, and the spring is pressed between the gripper and the slider.

[0012] As a further embodiment of this utility model, the clamping part includes at least two clamping blocks and a clamping motor for driving the clamping blocks to clamp or release the ampoule, and the rotating part includes a rotating motor, the clamping motor being mounted on the rotating motor, and the rotating motor being used to drive the clamping motor and the clamping blocks to rotate together.

[0013] As a further embodiment of this utility model, the side of the clamping block that contacts the ampoule is designed with an arc-shaped structure that matches the shape of the ampoule body.

[0014] As a further embodiment of this utility model, the rotary motor is provided with a conductive slip ring, the conductive slip ring stator is fixedly connected to the housing of the rotary motor, and the conductive slip ring rotor is connected to the output shaft of the rotary motor and the clamping motor.

[0015] As a further embodiment of this invention, the striking assembly includes a swing arm and a swing arm motor for driving the swing arm to rotate, the swing arm being used to strike the ampoule after it has been cut by the cutting assembly.

[0016] As a further embodiment of this utility model, the ampoule opening device further includes a mounting platform, which is used to install a clamping component, a cutting component, and a striking component. A waste collection frame for collecting ampoule caps is also fixedly installed on the mounting platform.

[0017] A dilution and labeling instrument includes the aforementioned ampoule opening device.

[0018] This utility model has the following beneficial effects:

[0019] The clamping assembly in this solution includes a clamping part for clamping ampoules and a rotating part for driving the clamping part to rotate. By driving the clamping part to rotate, the ampoules on the clamping part can be rotated. When the rotating part drives the clamping part to rotate, the rotation axis of the rotating part coincides with the axis of the ampoule, thereby driving the ampoule to rotate. After the grinding wheel contacts the neck of the ampoule, the rotating part drives the ampoule to rotate, creating a ring-shaped scratch on the neck of the ampoule. The ring-shaped scratch controls the fracture path when the ampoule cap breaks from the body, preventing uncontrollable fragmentation at the end of the fracture path and reducing the risk of solution contamination.

[0020] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0022] Figure 1 This is a schematic diagram of the clamping component in this utility model;

[0023] Figure 2 This is a schematic diagram of the cutting component in this utility model;

[0024] Figure 3 This is a top view of the cutting component in this utility model;

[0025] Figure 4 This is a schematic diagram of the overall structure of this utility model.

[0026] Legend:

[0027] 1. Waste residue frame; 2. Spring; 3. Slider; 4. Gripper; 5. Grinding wheel; 6. Gripper motor; 7. Swing rod; 8. Swing rod motor; 9. Ampoule; 10. Clamping block; 11. Clamping motor; 12. Conductive slip ring; 13. Rotary motor; 14. Mounting platform. Detailed Implementation

[0028] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0029] Please see Figures 1-4 This utility model provides a technical solution: an ampoule opening device, including a clamping component for clamping an ampoule 9, a cutting component for cutting the ampoule 9, and a striking component for striking the ampoule 9. The clamping component includes a clamping part for clamping the ampoule 9 and a rotating part for driving the clamping part to rotate. The rotating part is used to drive the clamping part to rotate along the axis of the clamped ampoule 9.

[0030] The ampoule 9 is held in place by a clamping component to ensure its stability when it is cut and struck. Then, the neck of the ampoule 9 is cut by a cutting component to create a scratch. The cap of the ampoule 9 is then struck by a striking component to cause the cap to break at the scratch. Since the ampoule 9 is usually made of glass, which is a brittle material, the scratches are pre-formed at the neck of the ampoule 9 to control stress concentration and guide the fracture path, transforming the originally random brittle fracture into a controllable process.

[0031] like Figure 1 As shown, the clamping assembly in this solution includes a clamping part for clamping the ampoule 9 and a rotating part for driving the clamping part to rotate. By driving the clamping part to rotate through the rotating part, the ampoule 9 on the clamping part can be rotated. When the rotating part drives the clamping part to rotate, the rotation axis coincides with the axis of the ampoule 9, thereby driving the ampoule 9 to rotate. After the grinding wheel 5 contacts the neck of the ampoule 9, the rotating part drives the ampoule 9 to rotate and generate a ring scratch on the neck of the ampoule 9. The ring scratch controls the fracture path when the cap of the ampoule 9 breaks from the body, preventing uncontrollable fragmentation at the end of the fracture path and reducing the risk of solution contamination.

[0032] Specifically, the cutting assembly includes a gripper 4, an elastic mounting part, and a grinding wheel 5 for contacting the ampoule 9. The grinding wheel 5 is elastically slidably mounted on the gripper 4 through the elastic mounting part, and the sliding direction of the grinding wheel 5 is perpendicular to the axis of the grinding wheel 5.

[0033] The cutting assembly includes a gripper 4, a flexible mounting part, and a grinding wheel 5. The grinding wheel 5 is mounted on the cutting assembly via the flexible mounting part. When the grinding wheel 5 contacts the ampoule 9, the flexible mounting part is compressed. This not only buffers the contact between the grinding wheel 5 and the ampoule 9 but also ensures that the grinding wheel 5 fits tightly against the ampoule 9 and generates a certain pressure at the neck of the ampoule 9. This reduces the risk of the ampoule 9 being crushed by the grinding wheel 5 while allowing the grinding wheel 5 to make normal contact with the ampoule 9 and generate pressure.

[0034] Specifically, such as Figures 2-3 As shown, the gripper 4 includes multiple movable parts, and each movable part is provided with at least one grinding wheel 5. The gripper 4 has a first state for driving the edge of the grinding wheel 5 to contact the position to be cut on the ampoule 9, and a second state for driving the grinding wheel 5 to disengage from the ampoule 9. The cutting assembly also includes a driving member 6, which is used to drive the movable parts to move so that the gripper 4 switches between the first state and the second state. The multiple grinding wheels 5 are used to be evenly spaced or symmetrically arranged in the circumferential direction in the first state of the gripper 4, so as to apply uniform pressure to the ampoule 9 in the circumferential direction or symmetrical pressure on both sides.

[0035] The gripper 4 includes multiple movable parts, each equipped with a grinding wheel 5. The number of grinding wheels 5 on each movable part can be one or more, thus the cutting assembly includes multiple grinding wheels 5. These multiple grinding wheels 5 can contact the ampoule 9 from multiple directions. The position of the grinding wheels 5 in contact with the ampoule 9 is controlled, ensuring that the grinding wheels 5 are evenly distributed around the circumference of the ampoule 9 or symmetrically distributed on both sides of the ampoule 9 during cutting. This ensures that the ampoule 9 is evenly stressed circumferentially or on both sides when cutting with the grinding wheels 5, preventing the ampoule 9 from shifting during the cutting process. This effectively improves cutting accuracy and ensures that the final scratch lines formed on the surface of the ampoule 9 are smooth. This also ensures that the cracks in the ampoule 9 are neat when it is finally struck, reducing the risk of fragments contaminating the solution when the ampoule 9 is opened.

[0036] Since multiple grinding wheels 5 contact the ampoule 9 from different angles, and the neck of the ampoule 9 is at the position where the diameter of the ampoule 9 is small, after the ampoule 9 is cut, there will be mutual movement interference between the ampoule 9 and the grinding wheels 5. Therefore, the moving part is controlled by the driving component 6 to move, so that the moving parts can move relative to each other, and the gripper 4 can switch between the first state and the second state. When it is necessary to cut the ampoule 9, the moving part can be driven by the driving component 6 to move closer to the ampoule 9, so that the gripper 4 is in the first state. When the gripper 4 needs to leave the ampoule 9, the moving part can be driven by the driving component 6 to move away from the ampoule 9, so that the grinding wheel 5 and the ampoule 9 are disengaged and a certain gap is created, so that the gripper 4 can leave the ampoule 9 smoothly or the ampoule 9 can leave the gripper 4 smoothly.

[0037] Figures 2-3 An example of a gripper 4 is shown. In this example, the gripper 4 includes two symmetrically arranged movable parts. Two grinding wheels 5 are mounted on a single movable part via elastic mounting parts. The grinding wheels 5 on the two movable parts are symmetrically arranged about the symmetrical faces of the two movable parts.

[0038] With four grinding wheels 5 symmetrically arranged in pairs, when the ampoule 9 is cut by the grinding wheels 5, the ampoule 9 is clamped between the four grinding wheels 5. The ampoule 9 is positioned by the four grinding wheels 5, so that the ampoule 9 will not shift during the process of cutting the ampoule 9 by the grinding wheels 5.

[0039] In this example, the drive unit 6 is a gripper motor. Two movable parts are mounted on the gripper motor. The gripper motor controls the two movable parts to move closer or further apart, thereby adjusting the distance between the grinding wheels 5 so that the grinding wheels 5 contact the ampoule 9 or disengage from the ampoule 9.

[0040] Specifically, such as Figure 2 As shown, the elastic mounting part includes a slide bar, a slider 3 and a spring 2. The first end of the slide bar is fixed on the gripper 4. The slider 3 is slidably mounted on the slide bar along the length of the slide bar and is used to mount the grinding wheel 5. The spring 2 is pressed between the gripper 4 and the slider 3.

[0041] like Figure 2 As shown, a sliding rod is provided on the movable part of the gripper 4, and a spring 2 and a slider 3 are sleeved on the sliding rod. By fixing the grinding wheel 5 on the slider 3, the grinding wheel 5 can slide along the sliding rod. At the same time, the spring 2 is placed between the slider 3 and the movable part of the gripper 4, so that the spring 2 will be compressed when the grinding wheel 5 approaches the movable part of the gripper 4. This buffers the grinding wheel 5 when it comes into contact with the ampoule 9, preventing the ampoule 9 from being squeezed and broken when it comes into contact with the grinding wheel 5.

[0042] Specifically, such as Figure 1 As shown, the clamping part includes at least two clamping blocks 10 and a clamping motor 11 for driving the clamping blocks 10 to clamp or release the ampoule 9. The rotating part includes a rotating motor 13, and the clamping motor 11 is mounted on the rotating motor 13. The rotating motor 13 is used to drive the clamping motor 11 and the clamping blocks 10 to rotate together.

[0043] The clamping motor 11 drives the clamping blocks 10 to move closer or further apart to clamp or release the ampoule 9. When it is necessary to cut or strike the ampoule 9, the ampoule 9 is first placed between the clamping blocks 10. Then, the clamping motor 11 drives the clamping blocks 10 to move closer together to clamp the ampoule 9. After the ampoule 9 is clamped, the edge of the grinding wheel 5 in the cutting assembly is brought into contact with the neck of the ampoule 9. Finally, the rotary motor 13 starts to drive the clamping motor 11 and the ampoule 9 clamped on the clamping motor 11 to rotate, so that a complete circle of scratches is produced at the neck of the ampoule 9, making the crack of the ampoule 9 smoother when it is finally struck. The rotation of the ampoule 9 is achieved by the rotary motor 13 driving the clamping motor 11. The overall structure is simple and can be applied to ampoules of different sizes.

[0044] Specifically, the side of the clamping block 10 that contacts the ampoule 9 is designed as an arc-shaped structure that matches the shape of the ampoule 9. In most cases, the body of the ampoule 9 is cylindrical. Therefore, the side of the clamping block 10 that contacts the body of the ampoule 9 is arc-shaped, and the diameter of the arc matches the outer diameter of the ampoule 9. This allows the clamping block 10 to make surface contact with the body of the ampoule 9 when clamping it, resulting in a larger force-bearing area on the surface of the ampoule 9. This disperses the clamping force exerted by the clamping block 10 on the ampoule 9 to a larger force-bearing surface, thereby further reducing the probability of the ampoule 9 breaking during the opening process.

[0045] Furthermore, a conductive slip ring 12 is provided on the rotary motor 13. The stator of the conductive slip ring 12 is fixedly connected to the housing of the rotary motor 13, and the rotor of the conductive slip ring 12 is connected to the output shaft of the rotary motor 13 and the clamping motor 11. The conductive slip ring 12 is existing technology and will not be described in detail here. The conductive slip ring 12 can supply power to the clamping motor 11 during the rotation process to ensure the normal operation of the clamping motor 11 during the rotation process.

[0046] Specifically, the striking assembly includes a rocker arm 7 and a rocker arm motor 8 for driving the rocker arm 7 to rotate. The rocker arm 7 is used to strike the ampoule 9 after it has been cut by the cutting assembly.

[0047] The swing arm 7 is driven by the swing arm motor 8 to rotate. When a scratch is formed on the neck of the ampoule 9, the swing arm motor 8 drives the swing arm 7 to rotate so that the swing arm 7 can strike the cap of the ampoule 9, causing the cap of the ampoule 9 to break off from the scratch at the neck, thus opening the ampoule 9. The method of driving the swing arm 7 by the swing arm motor 8 is simple in structure, more convenient in later maintenance, and has low production cost.

[0048] Specifically, the swing arm 7 is a hollow tube made of plastic material, which reduces the mass of the swing arm 7 and controls the impact force when the swing arm 7 strikes the ampoule 9, preventing the ampoule 9 from being broken due to excessive impact.

[0049] Furthermore, the ampoule 9 opening device also includes a mounting platform 14, which is used to install clamping components, cutting components and striking components. A waste collection frame 1 for collecting the ampoule 9 cap is also fixedly installed on the mounting platform 14.

[0050] like Figure 4 As shown, in this example, the clamping component, cutting component, and striking component are all mounted on the mounting platform 14. The clamping component is located below the mounting platform 14. The clamping component raises and lowers to allow the ampoule 9 to enter or leave the opening station. At the same time, the cutting component is located above the mounting platform 14 via a lifting device (not shown in the figure). The cutting component raises and lowers to allow the grinding wheel 5 to move closer to or away from the ampoule 9 located in the opening station. The striking component is fixed on the mounting platform and is used to strike the ampoule 9 located in the opening station.

[0051] During operation, the ampoule 9 is placed between the clamping blocks 10, and the clamping motor 11 drives the clamping blocks 10 to move closer together to clamp the ampoule 9. Next, the cutting component moves closer to the ampoule 9 held by the clamping component. When the cutting component moves, the jaw 4 is in its second state to ensure that the grinding wheel 5 can move smoothly to the same height as the neck of the ampoule 9. After moving into position, the jaw 4 changes from its second state to its first state, and the grinding wheel 5 on the jaw 4 approaches the ampoule 9 and contacts the neck of the ampoule 9. The rotary motor 13 starts and drives the clamping motor 11 and the ampoule 9 to rotate. The grinding wheel 5 remains stationary. The ampoule 9 and the grinding wheel 5 rotate relative to each other, forming a full circle of scratches at the neck of the ampoule 9. After the scratches are cut, the rotary motor 13 stops, and the clamping jaw 4 returns from the first state to the second state. Then, the cutting assembly is lifted by the lifting device to expose the cap of the ampoule 9. Finally, the swing arm motor 8 starts and drives the swing arm 7 to rotate and strike the ampoule 9, thus completing the opening of the ampoule 9.

[0052] The mounting platform 14 is also equipped with a waste collection frame 1, which is used to collect the caps of the ampoules 9 that are knocked off by the swing arm 7. The specific location of the waste collection frame 1 is determined according to the contact position between the swing arm 7 and the ampoule 9 when it is knocked off, so as to ensure that the caps of the ampoules 9 that are knocked off by the swing arm 7 can smoothly enter the waste collection frame 1.

[0053] Preferably, the clamping component can be mounted on a robotic arm, which drives the clamping component to move and rotate, thereby achieving fully automatic feeding and unloading and avoiding hand contact; the entire process does not require direct contact with the ampoule 9, reducing the possibility of microbial contamination and cross-infection;

[0054] Preferably, the cutting component can be mounted on a robotic arm. The robotic arm drives the cutting component to move and rotate. During loading, the robotic arm moves the cutting component above the ampoule, at which point the gripper 4 is in its second state. Subsequently, the cutting component descends under the drive of the robotic arm, causing the gripper 4 to descend to the same height as the neck of the ampoule 9. Then, the gripper motor 6 drives the gripper 4 to change from the second state to the first state. Multiple grinding wheels 5 mounted on the gripper 4 contact and clamp the ampoule 9, completing the clamping of the ampoule 9. Next, the robotic arm drives the cutting component to rise and move above the bottle opening station. At this time, the ampoule 9 held by the cutting component is directly above the clamping component. Then, the robotic arm drives the cutting component to descend, causing the ampoule 9 to descend between the clamping blocks 10. After the ampoule 9 descends into place, the clamping motor 11 drives the clamping blocks 10 to clamp the body of the ampoule 9, completing the fully automatic loading of the ampoule 9. After the ampoule 9 is opened, the robotic arm drives the cutting assembly to descend, causing the gripper 4 to drop to the same height as the ampoule 9. Then, the gripper motor 6 drives the gripper 4 to change from the second state to the third state. In the third state, the distance between the two grippers 4 is smaller than in the second state but larger than in the first state. Because the diameter of the ampoule 9 body is larger than the diameter of the bottle neck, the gripper 4 needs to be changed to the third state when the abrasive wheel 5 clamps the ampoule 9 body. After the abrasive wheel 5 clamps the ampoule 9, the clamping motor 11 drives the clamping blocks 10 to move away from each other and release the ampoule. Then, the robotic arm drives the cutting assembly to rise, which in turn lifts the clamped ampoule 9 to achieve automatic unloading. In this way, the cutting assembly can not only achieve precise cutting of the ampoule 9, but also grasp and transfer the ampoule, thereby reducing the complexity of the equipment, simplifying the structure, avoiding hand contact, and eliminating the need for direct contact with the ampoule 9 throughout the process, thus reducing the possibility of solution contamination.

[0055] A dilution labeling instrument includes the aforementioned ampoule opening device. In this solution, a clamping component or a cutting component is mounted on a robotic arm. The ampoule opening device enables fully automatic opening of the ampoule 9. After the ampoule 9 is opened, the liquid suction gun of the dilution labeling instrument transfers the solution inside the ampoule 9 to the dilution container of the dilution labeling instrument, thereby realizing the full automation of the solution from the ampoule to the dilution labeling instrument.

[0056] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An ampoule opening device, comprising a clamping assembly for clamping an ampoule (9), a cutting assembly for cutting the ampoule (9), and a striking assembly for striking the ampoule (9), characterized in that: The clamping assembly includes a clamping part for clamping an ampoule (9) and a rotating part for driving the clamping part to rotate, the rotating part being used to drive the clamping part to rotate along the axis of the clamped ampoule (9). The cutting assembly includes a jaw (4), an elastic mounting part, and a grinding wheel (5) for contacting the ampoule (9). The grinding wheel (5) is elastically slidably mounted on the jaw (4) through the elastic mounting part, and the sliding direction of the grinding wheel (5) is perpendicular to the axis of the grinding wheel (5).

2. The ampoule opening device according to claim 1, characterized in that: The gripper (4) includes multiple movable parts, and each movable part is provided with at least one grinding wheel (5). The gripper (4) has a first state for driving the edge of the grinding wheel (5) to contact the position to be cut on the ampoule (9), and a second state for driving the grinding wheel (5) to disengage from the ampoule (9). The cutting assembly also includes a drive member (6), which is used to drive the movable parts to move so that the gripper (4) switches between the first state and the second state. The multiple grinding wheels (5) are arranged at equal intervals or symmetrically along the circumference in the first state of the gripper (4), so as to apply uniform pressure to the ampoule (9) along the circumference or symmetrical pressure on both sides.

3. The ampoule opening device according to claim 1, characterized in that: The elastic mounting part includes a slide rod, a slider (3) and a spring (2). The first end of the slide rod is fixed on the gripper (4). The slider (3) is slidably mounted on the slide rod along the length direction of the slide rod and is used to mount the grinding wheel (5). The spring (2) is pressed between the gripper (4) and the slider (3).

4. The ampoule opening device according to claim 1, characterized in that: The clamping part includes at least two clamping blocks (10) and a clamping motor (11) for driving the clamping blocks (10) to clamp or release the ampoule (9). The rotating part includes a rotating motor (13). The clamping motor (11) is mounted on the rotating motor (13). The rotating motor (13) is used to drive the clamping motor (11) and the clamping blocks (10) to rotate together.

5. The ampoule opening device according to claim 4, characterized in that: The clamping block (10) has an arc-shaped structure on the side that contacts the ampoule (9) to match the shape of the ampoule (9).

6. The ampoule opening device according to claim 4, characterized in that: The rotary motor (13) is provided with a conductive slip ring (12). The stator of the conductive slip ring (12) is fixedly connected to the outer shell of the rotary motor (13), and the rotor of the conductive slip ring (12) is connected to the output shaft of the rotary motor (13) and the clamping motor (11).

7. The ampoule opening device according to claim 1, characterized in that: The striking assembly includes a rocker arm (7) and a rocker arm motor (8) for driving the rocker arm (7) to rotate. The rocker arm (7) is used to strike the ampoule (9) after it has been cut by the cutting assembly.

8. The ampoule opening device according to claim 1, characterized in that: The ampoule opening device also includes a mounting platform (14), which is used to install a clamping component, a cutting component and a striking component. A waste frame (1) for storing the cap of the ampoule (9) is also fixedly installed on the mounting platform (14).

9. A dilution and titration apparatus, characterized in that: Includes the ampoule opening device as described in any one of claims 1-8.

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