Method and structure for determining the size of ampoule bottles for water injection machines

Abstract

The present invention discloses a method and structure for judging the size of ampoules for a water injection machine, comprising a bottle loading position, a bottle unloading position, a rotating disk, a frame, a left clamp and a right clamp, wherein the left rotating clamp block and the right rotating clamp block are meshed with each other, a left torsion spring is sleeved on the left rotating connecting shaft, a light shielding sensor is provided between the first cam mechanism and the second cam mechanism, and the light shielding sensor is provided within the track passed by the curved arm. When the curved arm passes the light shielding sensor and is in a position on a horizontal plane, the amount of light received is inconsistent, and the opening and closing angles of the left clamp and the right clamp are determined to judge the sizes of different ampoules; in order to avoid the exposure of the parts of the mechanism, the left clamp and the right clamp are located outside the shell and are used to clamp the external ampoules. The mechanism is completely wrapped tightly by the shell and cannot be exposed to the outside, so as to prevent the clean air from being polluted and facilitate the cleaning of the anti-tumor liquid medicine remaining on the shell.

Description

Technical Field

[0001] The present invention relates to medical equipment, in particular to a method and structure for judging the size of an ampoule bottle of a water injection machine. Background Art

[0002] Modern ampoules are made of fired glass tubes and are widely used to hold injectable preparations and high-purity chemicals that must be sealed from the air. The nipple of the ampoule is sealed with an open flame to isolate it from the air, and the neck of the ampoule is marked. When pressure is applied, the neck of the ampoule breaks, allowing the liquid to be extracted.

[0003] In order to meet the needs of fixing bottle-type medical products, our company applied for a utility model patent with the authorization announcement number "CN210793842U" on September 16, 2019. The name is a gripper for a syringe bottle dispensing robot. However, ampoules have different specifications such as 1 ml, 2 ml, 3 ml, 5 ml, 10 ml, 20 ml and 25 ml. In order to determine the size of the clamped ampoule, the size of the ampoule needs to be tested. Summary of the Invention

[0004] The first object of the present invention is to provide a method for determining the size of an ampoule bottle of a water injection machine, which has the function of detecting the size of the ampoule bottle.

[0005] The first technical purpose of the present invention is achieved through the following technical solutions: A method for determining the size of an ampoule bottle of a water injection machine, comprising the following steps:

[0006] Step 1: Clamping the ampoule: the bottom of the left and right jaws rotate synchronously through gear meshing. A crank arm is connected to the left or right jaw, and the crank arm is driven to rotate by radial force to open the left and right jaws. The ampoule is lowered from the height direction to between the left and right jaws. The left and right jaws rotate inward through the torsion spring to clamp the ampoule, and the crank arm rotates synchronously with the left or right jaw;

[0007] Step 2: Transferring the ampoule bottle: the left clamping jaw and the right clamping jaw are fixed on the rotating disk, and the rotating disk rotates in a circumferential direction;

[0008] Step 3: Detect the size of the ampoule. During the rotation of the rotating disk, the curved arm passes the occlusion sensor. The occlusion sensor determines the state of the curved arm by judging the inconsistency of the received light amount, determines the opening and closing angles of the left and right clamping jaws, and calculates the diameter of the ampoule.

[0009] Step 4: Unloading of the ampoule: During the rotation of the rotating disk, the radial force drives the crank arm to rotate, so that the left clamp and the right clamp are opened, and the ampoule between the left clamp and the right clamp falls.

[0010] Preferably, in step 1, the rotating disk is in a stationary state.

[0011] By adopting the above technical solution, the rotating disk does not rotate during the bottle loading process.

[0012] Preferably, in step 4, the rotating disk is in a rotating state.

[0013] By adopting the above technical solution, during the bottle unloading process, the rotating disk is in a rotating state.

[0014] Preferably, in step three, the sensor determines the strength of the feedback electrical signal by the amount of light received.

[0015] The second purpose of the present invention is to provide a water injection machine ampoule bottle size judgment structure, which has the function of judging the size of the ampoule bottle.

[0016] The above technical purpose of the present invention is achieved through the following technical solutions: a water injection machine ampoule bottle size judgment structure, including a bottle loading position, a bottle unloading position, a rotating disk, a frame, a left clamp and a right clamp, the bottom of the left clamp is provided with a left rotating connecting shaft, the bottom of the right clamp is provided with a right rotating connecting shaft, a connecting plate is provided on the rotating disk, each of the connecting plates is rotatably connected to the left rotating connecting shaft and the right rotating connecting shaft, a left rotating clamping block is provided on the left rotating connecting shaft, a right rotating clamping block is provided on the right rotating connecting shaft, the left rotating clamping block and the right rotating clamping block are meshed with each other, a left torsion spring is sleeved on the left rotating connecting shaft, and a right rotating connecting shaft is sleeved on the right rotating connecting shaft. A right torsion spring is provided, one end of the left torsion spring is connected to the connecting plate, the other end of the left torsion spring is connected to the left rotating clamping block, one end of the right torsion spring is connected to the connecting plate, the other end of the right torsion spring is connected to the right rotating clamping block, a crank arm is provided on the left rotating clamping block, a first cam mechanism is provided below the upper bottle position of the frame, a second cam mechanism is provided below the bottle unloading position of the frame, the first cam mechanism radially pushes the crank arm to rotate to open the left clamping jaw and the right clamping jaw, the second cam mechanism radially pushes the crank arm to rotate to open the left clamping jaw and the right clamping jaw, a light shading sensor is provided between the first cam mechanism and the second cam mechanism, and the light shading sensor is provided within the trajectory passed by the crank arm.

[0017] Preferably, the left rotating clamping block is provided with a left engaging groove cooperating with the left torsion spring, and the right rotating clamping block is provided with a right engaging groove cooperating with the right torsion spring.

[0018] By adopting the above technical solution, the left torsion spring and the right torsion spring are positioned and fixed.

[0019] Preferably, the first cam mechanism includes a first cam motor, a first cam follower block and a first cam connecting plate, the first cam connecting plate is horizontally arranged on the motor shaft of the first cam motor, the first cam follower block is rotatably connected to the first cam connecting plate, and the first cam follower block cooperates with the crank arm.

[0020] By adopting the above technical solution, the first cam motor rotates, causing the first cam follower block to contact the crank arm, pushing the crank arm inward, and opening the clamping jaws.

[0021] Preferably, the second cam mechanism includes a second cam motor, a second cam follower block, a third cam follower block, a second cam connecting plate and a third cam connecting plate, the second cam connecting plate is horizontally arranged on the motor shaft of the second cam motor, the second cam follower block is rotatably connected to the second cam motor, one end of the third cam connecting plate is rotatably connected to the frame, the third cam follower block is distributed at the other end of the third cam connecting plate, the third cam follower block is rotatably connected to the third cam connecting plate, the second cam follower block abuts against one side of the third cam connecting plate, the third cam follower block is arranged on the other side of the third cam connecting plate, and the third cam follower block cooperates with the crank arm.

[0022] By adopting the above technical solution, the second cam motor rotates, and at the same time the rotating disk is in a rotating state, the second cam connecting plate rotates, and the second cam follower block rotates along with the second cam connecting plate, thereby driving the third cam connecting plate to swing back and forth. When the rotating disk drives the curved arm to pass, the curved arm respectively contacts multiple third cam follower blocks on the outward-swinging third cam connecting plate, and then the curved arm moves inward to control the opening of the left and right clamps.

[0023] Preferably, the third cam connecting plate is provided with a groove which cooperates with the second cam follower block.

[0024] Preferably, three third cam followers are provided.

[0025] By adopting the above technical solution, there are multiple points that trigger the rotation of the crank arm during the movement of the crank arm.

[0026] Preferably, it further comprises a bottle cutting position and a fixed plate, the light shielding sensor is arranged between the bottle cutting position and the bottle loading position, a light shielding bracket is arranged below the fixed plate, and the light shielding sensor is connected to the light shielding bracket.

[0027] By adopting the above technical solution, interference between the light shielding sensor and the rotating disk is avoided.

[0028] Preferably, the light-shielding bracket is located at the upper and lower ends of the connecting plate, the light-shielding sensor is vertically arranged at the upper end of the light-shielding bracket, and the light-shielding sensor detects downward.

[0029] By adopting the above technical solution, interference between the light shielding sensor and the rotating disk is avoided.

[0030] Preferably, the left rotating clamping block is provided with left meshing teeth, and the right rotating clamping block is provided with right meshing teeth, and the left meshing teeth and the right meshing teeth are meshed with each other.

[0031] By adopting the above technical solution, the left clamping jaw and the right clamping jaw can be rotated and opened synchronously with each other.

[0032] In summary, the first cam mechanism opens the left and right clamps through the crank arm, and the ampoule is clamped by the left and right clamps. After clamping, the left and right clamps rotate, so the crank arm also rotates. The diameter of the ampoule determines the rotation angle of the left and right clamps, which is also the angle of the crank arm after it is fixed. When the rotating disk rotates, the crank arm passes through the shading sensor. When the crank arm is at different angles on the horizontal plane, when it passes through the shading sensor, the amount of light received by the shading sensor is inconsistent, and the state of the crank arm is determined. , determine the opening and closing angles of the left and right clamping jaws, and realize judgment of different ampoule bottle sizes; in the process of judging the size of the ampoule bottle, the curved arm and the shading sensor are both located inside the shell, that is, during the transfer of the ampoule bottle, only the clamping jaw is outside the shell. The reason for setting this structure is that during the transfer of the ampoule bottle, the ampoule bottle needs to be disinfected with alcohol to prevent the disinfectant liquid from entering the mechanism. The mechanism is completely wrapped tightly by the shell and cannot be exposed to prevent contamination of clean air, so as to facilitate cleaning of the anti-tumor drug liquid remaining on the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural diagram of an embodiment;

[0034] Figure 2 yes Figure 1 An enlarged schematic diagram of part A is shown;

[0035] Figure 3 is a cross-sectional schematic diagram of an embodiment;

[0036] Figure 4 is a schematic cross-sectional view of the left clamping jaw of the embodiment;

[0037] Figure 5 This is a schematic structural diagram of the embodiment in a clamping state;

[0038] In the figure, 01, frame; 012, bottle cutting position; 02, housing; 111, bottle loading position; 35, rotating disk; 51, left clamping jaw; 511, left rotating connecting shaft; 512, left rotating clamping block; 513, left meshing tooth; 514, left torsion spring; 515, curved arm; 516, left clamping slot; 52, right clamping jaw; 521, right rotating connecting shaft; 522, right rotating clamping block; 523, right meshing tooth; 524, right torsion spring; 525, right clamping slot ; 547. Connecting plate; 55. Bottle unloading position; 56. First cam mechanism; 561. First cam motor; 562. First cam follower block; 563. First cam connecting plate; 57. Second cam mechanism; 571. Second cam motor; 572. Second cam follower block; 573. Third cam follower block; 574. Second cam connecting plate; 575. Third cam connecting plate; 576. Groove; 58. Shading sensor; 581. Shading bracket. DETAILED DESCRIPTION

[0039] The present invention will be further described in detail below with reference to the accompanying drawings.

[0040] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

[0041] Example:

[0042] A method for determining the size of an ampoule bottle of a water injection machine, comprising the following steps:

[0043] Step 1: Clamping the ampoule: the bottom of the left and right jaws rotate synchronously through gear meshing. A crank arm is connected to the left or right jaw, and the crank arm is driven to rotate by radial force to open the left and right jaws. The ampoule is lowered from the height direction to between the left and right jaws. The left and right jaws rotate inward through the torsion spring to clamp the ampoule, and the crank arm rotates synchronously with the left or right jaw;

[0044] Step 2: Transferring the ampoule bottle: the left clamping jaw and the right clamping jaw are fixed on the rotating disk, and the rotating disk rotates in a circumferential direction;

[0045] Step 3: Detect the size of the ampoule. When the rotating disk rotates, the curved arm passes the shading sensor. When the curved arm is at different angles on the horizontal plane, the areas of light blocked when passing the shading sensor are inconsistent. By judging the inconsistency of the received light amount, the opening and closing angles of the left and right clamping jaws are determined.

[0046] Step 4: Unloading of the ampoule: During the rotation of the rotating disk, the radial force drives the crank arm to rotate, so that the left clamp and the right clamp are opened, and the ampoule between the left clamp and the right clamp falls.

[0047] Meanwhile, in the above method, in step one, the rotating disk is in a stationary state, and in step four, the rotating disk is in a rotating state, and the sensor determines the strength of the feedback electrical signal by the amount of light received.

[0048] like Figures 1 to 4 As shown, a water injection machine ampoule bottle size judgment structure includes a bottle loading position 111, a bottle cutting position 012, a fixed plate, a bottle unloading position 55, a rotating plate 35, a frame 01, a left clamping jaw 51 and a right clamping jaw 52, wherein the frame 01, the fixed plate and the rotating plate 35 are all located below the shell 02, and the frame 01, the fixed plate and the rotating plate 35 are covered by the shell 02 to prevent the mechanism parts from being exposed. The left clamping jaw 51 and the right clamping jaw 52 are located outside the shell 02 and are used to clamp the external ampoule bottle. The mechanism is completely wrapped tightly by the shell and cannot be exposed to prevent contamination. The left clamping jaw 51 and the right clamping jaw 52 are arranged on the rotating disk 35, and multiple groups of left clamping jaws 51 and right clamping jaws 52 are arranged on the circumference of the rotating disk 35. Among them, the upper bottle position 111, the bottle cutting position 012 and the bottle unloading position 55 are arranged on the circumference of the fixed disk. The upper bottle position 111 is used to fix the ampoule bottle on the left clamping jaw 51 and the right clamping jaw 52 at the bottom of the upper bottle position 111, the bottle cutting position 012 is used to cut the bottleneck position of the passing ampoule bottle, and the bottle unloading position 55 is used to unload the ampoule bottle.

[0049] like Figure 2 and Figure 4 As shown, a left rotating connecting shaft 511 is provided at the bottom of the left clamping jaw 51, and a right rotating connecting shaft 521 is provided at the bottom of the right clamping jaw 52. A connecting plate 547 is provided on the rotating disk 35. Each connecting plate 547 is rotatably connected to the left rotating connecting shaft 511 and the right rotating connecting shaft 521. A left rotating clamping block 512 is provided on the left rotating connecting shaft 511, and a right rotating clamping block 522 is provided on the right rotating connecting shaft 521. The left rotating clamping block 512 and the right rotating clamping block 522 are meshed with each other. The meshing structure is that a left meshing tooth 513 is provided on the left rotating clamping block 512, and a right meshing tooth 523 is provided on the right rotating clamping block 522. The left meshing tooth 513 and the right meshing tooth 523 are meshed with each other, that is, when the right rotating clamping block 522 rotates, the left rotating clamping block 512 will rotate at the same time.

[0050] like Figure 2As shown, a left torsion spring 514 is sleeved on the left rotating connecting shaft 511, and a right torsion spring 524 is sleeved on the right rotating connecting shaft 521. One end of the left torsion spring 514 is connected to the connecting plate 547, and the other end of the left torsion spring 514 is connected to the left rotating clamping block 512. One end of the right torsion spring 524 is connected to the connecting plate 547, and the other end of the right torsion spring 524 is connected to the right rotating clamping block 522. A curved arm 515 is provided on the left rotating clamping block 512. The left torsion spring 514 and the right torsion spring 524 play a role in rotational reset. At the same time, a left clamping groove 516 that cooperates with the left torsion spring 514 is provided on the left rotating clamping block 512, and a right clamping groove 525 that cooperates with the right torsion spring 524 is provided on the right rotating clamping block 522.

[0051] like Figure 3 As shown, the driving structure of the left clamping jaw 51 and the right clamping jaw 52 is as follows: a first cam mechanism 56 is provided below the bottle loading position 111 of the frame 01, and a second cam mechanism 57 is provided below the bottle unloading position 55 of the frame 01. The first cam mechanism 56 is at the bottle loading position 111, and radially pushes the crank arm 515 to rotate and open the left clamping jaw 51 and the right clamping jaw 52; the second cam mechanism 57 is at the bottle unloading position 55, and radially pushes the crank arm 515 to rotate and open the left clamping jaw 51 and the right clamping jaw 52.

[0052] like Figure 3 As shown, the first cam mechanism 56 includes a first cam motor 561, a first cam follower block 562 and a first cam connecting plate 563. The first cam connecting plate 563 is horizontally arranged on the motor shaft of the first cam motor 561. The first cam follower block 562 is rotatably connected to the first cam connecting plate 563. The first cam follower block 562 cooperates with the curved arm 515. That is, when the first cam motor 561 rotates, the first cam follower block 562 abuts against the side of the curved arm 515, pushing the curved arm 515 toward the clamping jaw, so that the left clamping jaw 51 and the right clamping jaw 52 open to each other, thereby providing for the clamping of the ampoule bottle. At the same time, the first cam follower block 562 and the first cam connecting plate 563 are rotatably connected through a bearing.

[0053] like Figure 3As shown, the second cam mechanism 57 includes a second cam motor 571, a second cam follower block 572, a third cam follower block 573, a second cam connecting plate 574 and a third cam connecting plate 575. The second cam connecting plate 574 is horizontally arranged on the motor shaft of the second cam motor 571, the second cam follower block 572 is rotatably connected to the second cam motor 571, one end of the third cam connecting plate 575 is rotatably connected to the frame 01, the third cam follower block 573 is distributed at the other end of the third cam connecting plate 575, the third cam follower block 573 is rotatably connected to the third cam connecting plate 575, and the second cam follower block 572 is rotatably connected to one end of the third cam connecting plate 575. The side abutment, the third cam follower block 573 is arranged on the other side of the third cam connecting plate 575, the third cam follower block 573 cooperates with the crank arm 515, and the third cam connecting plate 575 is provided with a semicircular groove 576 that cooperates with the second cam follower block 572. There are three third cam followers 573 along the length direction of the third cam connecting plate 575 to ensure that the rotating disk 35 can control the left clamping jaw 51 and the right clamping jaw 52 to open more evenly during the rotation process, wherein the second cam follower block 572 is rotatably connected to the second cam connecting plate 574 through a bearing, and the third cam follower block 573 is rotatably connected to the third cam connecting plate 575 through a bearing.

[0054] like Figure 2 and Figure 3 As shown, a light-shielding sensor 58 is provided between the first cam mechanism 56 and the second cam mechanism 57. The light-shielding sensor 58 is provided within the track passed by the curved arm 515. A light-shielding bracket 581 is provided below the fixed plate. The light-shielding sensor 58 is connected to the light-shielding bracket 581. The light-shielding bracket 581 is located at the upper and lower ends of the connecting plate 547. The light-shielding sensor 58 is vertically provided on the light-shielding bracket 581. The light-shielding sensor 58 detects towards the middle position respectively.

[0055] Working principle:

[0056] When the rotating disk 35 rotates to the upper bottle position 111, the first cam motor 561 is started, driving the first cam connecting plate 563 to rotate, and the first cam follower block 562 contacts the side of the crank arm 515, pushing the crank arm 515 outward, causing the left clamping jaw 51 to rotate outward, and at the same time the right clamping jaw 52 is driven due to the meshing position, and then the right clamping jaw 52 is opened synchronously, and then the ampoule bottle is moved downward to between the left clamping jaw 51 and the right clamping jaw 52, and the first cam motor 561 stops, that is, the first cam follower block 562 is no longer in contact with the crank arm 515. At this time, under the action of the left torsion spring 514 and the right torsion spring 524, the left clamping jaw 51 and the right clamping jaw 52 move toward the center, and the crank rotates synchronously until the ampoule bottle is clamped. Then the rotating disk 35 rotates until the crank arm 515 passes the light shielding sensor 58. The amount of light received by the shading sensor 58 is inconsistent, so the strength of the electrical signal returned by the shading sensor 58 is different. For different ampoule sizes, the signal returned by the shading sensor 58 is judged to determine the size of the ampoule; finally, when the ampoule rotates to the bottle unloading position 55 through the rotating disk 35, the second cam motor 571 is started, driving the second cam connecting plate 574 to rotate, so that the second cam follower block 572 abuts against the side of the third cam connecting plate 575, driving the third cam connecting plate 575 to swing, so that the third cam follower block 573 on the third cam connecting plate 575 abuts against the side of the curved arm 515 in turn, pushing the curved arm 515 to rotate outward, so that the left clamping jaw 51 and the right clamping jaw 52 open each other, and then the ampoule between the left clamping jaw 51 and the right clamping jaw 52 falls, realizing unloading.

Claims

1. A method for determining the size of an ampoule bottle of a water injection machine based on a determination structure, characterized in that: The water injection machine ampoule size judgment structure includes a bottle loading position, a bottle unloading position, a rotating disk, a frame, a left clamp and a right clamp, the bottom of the left clamp is provided with a left rotating connecting shaft, the bottom of the right clamp is provided with a right rotating connecting shaft, a connecting plate is provided on the rotating disk, each of the connecting plates is rotatably connected to the left rotating connecting shaft and the right rotating connecting shaft, the left rotating connecting shaft is provided with a left rotating clamping block, the right rotating connecting shaft is provided with a right rotating clamping block, the left rotating clamping block and the right rotating clamping block are meshed with each other, the left rotating connecting shaft is sleeved with a left torsion spring, the right rotating A right torsion spring is sleeved on the connecting shaft, one end of the left torsion spring is connected to the connecting plate, the other end of the left torsion spring is connected to the left rotating clamping block, one end of the right torsion spring is connected to the connecting plate, the other end of the right torsion spring is connected to the right rotating clamping block, a crank arm is provided on the left rotating clamping block, a first cam mechanism is provided below the upper bottle position of the frame, and a second cam mechanism is provided below the bottle unloading position of the frame, the first cam mechanism pushes the crank arm to rotate in the radial direction to open the left clamping jaw and the right clamping jaw, the second cam mechanism pushes the crank arm to rotate in the radial direction to open the left clamping jaw and the right clamping jaw, the first cam mechanism and the second cam mechanism push the crank arm to rotate in the radial direction to open the left clamping jaw and the right clamping jaw, A light shielding sensor is provided between the two cam mechanisms, and the light shielding sensor is provided in the track through which the crank arm passes. The second cam mechanism includes a second cam motor, a second cam follower block, a third cam follower block, a second cam connecting plate and a third cam connecting plate. The second cam connecting plate is horizontally provided on the motor shaft of the second cam motor, the second cam follower block is rotatably connected to the second cam motor, one end of the third cam connecting plate is rotatably connected to the frame, the third cam follower block is distributed at the other end of the third cam connecting plate, and the third cam follower block is rotatably connected to the third cam connecting plate , the second cam follower block abuts against one side of the third cam connecting plate, the third cam follower block is arranged on the other side of the third cam connecting plate, and the third cam follower block cooperates with the crank arm; the judging method steps are as follows: step 1, clamping the ampoule bottle, the bottom of the left clamping jaw and the right clamping jaw rotate synchronously through gear meshing, the left clamping jaw or the right clamping jaw is connected to the crank arm, and the crank arm is driven to rotate by radial force to open the left clamping jaw and the right clamping jaw, and the ampoule bottle is lowered from the height direction between the left clamping jaw and the right clamping jaw, and the left clamping jaw and the right clamping jaw are rotated inward by the torsion spring to clamp the ampoule bottle, and the crank arm rotates synchronously with the left clamping jaw or the right clamping jaw; Step 2: Transferring the ampoule bottle: the left clamping jaw and the right clamping jaw are fixed on the rotating disk, and the rotating disk rotates in a circumferential direction; Step 3: Detect the size of the ampoule. During the rotation of the rotating disk, the curved arm passes the occlusion sensor. The occlusion sensor determines the state of the curved arm and the opening and closing angles of the left and right clamping jaws by judging the inconsistency of the received light. Step 4: Unloading of the ampoule: During the rotation of the rotating disk, the radial force drives the crank arm to rotate, so that the left clamp and the right clamp are opened, and the ampoule between the left clamp and the right clamp falls.

2. The method for determining the size of an ampoule bottle of a water injection machine according to claim 1, wherein: In the step 1, the rotating disk is in a stationary state.

3. The determination method based on the ampoule size determination structure of the water injection machine according to claim 1 is characterized in that: In the step 4, the rotating disk is in a rotating state.

4. The method for determining the size of an ampoule bottle of a water injection machine according to claim 1, wherein: In step three, the sensor determines the strength of the feedback electrical signal by the amount of light received.

5. The method for determining the size of an ampoule bottle of a water injection machine according to claim 1, wherein: The left rotating clamping block is provided with a left engaging groove matched with the left torsion spring, and the right rotating clamping block is provided with a right engaging groove matched with the right torsion spring.

6. The method for determining the size of an ampoule bottle of a water injection machine according to claim 1, wherein: The first cam mechanism includes a first cam motor, a first cam follower block and a first cam connecting plate. The first cam connecting plate is horizontally arranged on the motor shaft of the first cam motor. The first cam follower block is rotatably connected to the first cam connecting plate. The first cam follower block cooperates with the crank arm.

7. The method for determining the size of an ampoule bottle of a water injection machine according to claim 1, wherein: The third cam connecting plate is provided with a groove which cooperates with the second cam follower block.

8. The method for determining the size of an ampoule bottle of a water injection machine according to claim 1, wherein: The left rotating clamping block is provided with a left meshing tooth, and the right rotating clamping block is provided with a right meshing tooth, and the left meshing teeth and the right meshing teeth are meshed with each other.

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