Cutting device for medical radioactive isotope target

Abstract

The invention relates to the technical field of shearing, in particular to a cutting device for a medical radioactive isotope target, and aims to solve the technical problems of cuttings, residue flying and radioactive gas overflowing in the cutting process of a cutting device for a circular tube type target. The device comprises a cutting area; the driving assembly is arranged on the side portion of the cutting area, the driving assembly is provided with a driving end capable of doing reciprocating motion along a straight line, and the end portion of the driving end is located in the movable area; one side of the cutter is connected with the end part of the driving end; the discharging assembly is arranged on the back of the cutting area, and the bottom of the discharging assembly is provided with a feeding channel in butt joint with the input port. The pushing assembly is provided with a pushing end capable of doing reciprocating motion along a straight line, and the pushing end is arranged in the feeding channel; the top of the collecting tank is open, and the collecting tank is butted with the connector; the dust collection end of the dust collection assembly is connected to the collection tank. The device has the advantages that cuttings and residues are sucked away, and radioactive gas is sucked away in the cutting process.

Description

Technical Field

[0001] This invention relates to the field of shearing technology, and more specifically to a cutting device for medical radioisotope targets. Background Technology

[0002] The main source of medical radioactive isotopes is reactor irradiation targets. The safe dismantling of the irradiated targets is the primary key technology for efficiently obtaining medical radioactive isotopes, and different cutting techniques are required for targets with different structures.

[0003] Specifically, the medical institutions currently using Originating from fission The decay, and Mainly uses The target material is encased in a stainless steel shell to form a tubular target, which is then sent into the reactor for irradiation. The captured neutrons undergo (n,f) nuclear reactions and are obtained through complex chemical processing techniques.

[0004] Although this production method is commercialized and technologically mature, it is still not suitable for commonly used cylindrical tubes with a stainless steel cladding thickness of approximately 1 mm and a target interlayer thickness of approximately 2 mm. Current target manufacturing technologies still suffer from drawbacks, including target deformation during cutting, unbroken cut pieces, flying chips and residue, and radioactive gas leakage. These issues lead to problems such as cutting machine malfunctions, difficulties with unbroken cut pieces, challenges in filling storage containers and dissolving, and radioactive environmental pollution. Currently, there is no effective technology to eliminate unbroken cut pieces. Significant impacts include fission... The safe and efficient production of radioactive isotopes, including raw materials. Summary of the Invention

[0005] For existing technologies, circular tube type The cutting device for the target has technical problems such as the flying of chips and residues and the leakage of radioactive gases during the cutting process. The present invention provides a cutting device for medical radioisotope targets, which has the advantages of absorbing chips and residues and absorbing radioactive gases during the cutting process.

[0006] The technical solution of this invention is:

[0007] A cutting device for medical radioisotope targets, comprising:

[0008] The cutting area has an active area on one side, a connection port at the bottom, and an input port at the back.

[0009] A drive assembly is disposed on the side of the cutting area, the drive assembly having a drive end capable of reciprocating along a straight line, the end of the drive end being located within the active area;

[0010] The cutting tool has one side connected to the end of the drive end, and the other side of the cutting tool is the cutting edge;

[0011] The feeding assembly is located on the back of the cutting area, and its bottom has a feeding channel that connects to the input port. The extending direction of the feeding channel is perpendicular to the movement direction of the drive end.

[0012] A pushing component having a pushing end capable of reciprocating along a straight line, the pushing end being disposed within the feeding channel;

[0013] The collection tank has an open top and connects to the aforementioned connection port;

[0014] A vacuuming assembly, the vacuuming end of which is connected to the collection tank.

[0015] Optionally, the drive component is a pneumatic mechanism, and the cutting device also includes an air supply system.

[0016] Optionally, the driving component includes:

[0017] A movable cavity is located on the side of the cutting area;

[0018] A piston is movably disposed within the movable chamber, and one end of the piston has a rod that passes through the movable area and is connected to the cutting tool;

[0019] A first air supply pipe has one end connected to one end of the movable cavity, and the first air supply pipe has a first vent valve and a first air supply valve.

[0020] The second air supply pipe has one end connected to the other end of the movable cavity, and the second air supply pipe has a second vent valve and a second air supply valve.

[0021] The other end of the first gas supply pipe and the other end of the second gas supply pipe are both connected to the gas supply system.

[0022] Optionally, a spring is provided at the end of the movable cavity away from the movable area.

[0023] Optionally, a pressure gauge is provided on the first gas supply pipeline.

[0024] Optionally, the connection port is provided with a connecting flange, and the top of the collection tank is provided with a docking flange;

[0025] The bottom of the collection tank is equipped with a lifting component.

[0026] Optionally, the push component includes:

[0027] A slider is slidably disposed within the feeding channel, and the slider has threaded holes penetrating both ends thereof;

[0028] The screw is fitted into the threaded hole on the slider;

[0029] A motor is located at the end of the feeding channel away from the input port, and the output shaft of the motor is poweredly connected to one end of the screw.

[0030] Optionally, the side of the feeding channel has a limiting groove, and the slider has a protrusion structure that matches the limiting groove.

[0031] Optionally, the feeding assembly includes a storage area located above the feeding channel, the length of which is greater than or equal to the length of the target.

[0032] One end of the screw is close to one end of the storage area, and this end of the storage area is far from the input port. Furthermore, the length of the slider is greater than or equal to the distance between this end of the storage area and the input port.

[0033] Optionally, each side of the cutting area has an active area, and the driving assembly and the cutting tool are symmetrically arranged on both sides of the cutting area;

[0034] The drive ends of the two drive components move in a mirror motion.

[0035] Compared with the prior art, the beneficial effects of the present invention are:

[0036] The pushing end of the pushing component pushes the target part in the unloading component from the input port into the active area. The driving component is installed on the side of the cutting area. The driving end of the driving component drives the cutter to make reciprocating linear motion, thereby cutting the target part into blocks. The cut target blocks fall into the collection tank from the connection port. The chips, residues and radioactive gases generated during the cutting process are sucked away by the dust collection component, so that the target blocks falling into the collection tank do not contain chips or residues.

[0037] This technical solution can prevent chips and residues from falling into the collection tank and can prevent the leakage of radioactive gases. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a front view structural diagram of the present invention;

[0040] Figure 2This is a side cross-sectional view of the present invention.

[0041] 1. Frame; 11. Cutting area; 12. Moving area; 13. Connection port; 14. Input port; 15. Moving cavity; 16. Through hole; 17. Connecting flange; 18. Butt flange; 19. Lifting assembly;

[0042] 2. Drive assembly; 21. Piston; 22. First air supply pipe; 23. First vent valve; 24. First air supply valve; 25. Second air supply pipe; 26. Second vent valve; 27. Second air supply valve; 28. Connecting rod; 29. ​​Spring; 210. Pressure gauge;

[0043] 3. Knife; 31. Blade;

[0044] 4. Feeding assembly; 41. Feeding channel; 42. Storage area;

[0045] 5. Pushing component; 51. Slider; 52. Screw; 53. Motor; 54. Limiting groove;

[0046] 6. Collection tank;

[0047] 7. Vacuum cleaning assembly;

[0048] 8. Target component; 81. Target block;

[0049] 9. Sensors. Detailed Implementation

[0050] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0051] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0053] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0054] Example:

[0055] See Figure 1 and Figure 2 A cutting device for medical radioisotope targets includes a frame 1, a drive assembly 2, a cutting tool 3, a feeding assembly 4, a pushing assembly 5, a collection tank 6, and a dust collection assembly 7. The frame 1 has a sealed space at its top, which is a cutting area 11. One side of the cutting area 11 has a horizontally oriented movable area 12. The bottom of the cutting area 11 has a connection port 13, and the back of the cutting area 11 has an input port 14.

[0056] Specifically, the drive assembly 2 is mounted on the frame 1 and located on one side of the cutting area 11 with the movable area 12. The drive end of the drive assembly 2 is located within the movable area 12, and a cutter 3 is provided on the drive end of the drive assembly 2. One side of the cutter 3 is fixedly mounted on the drive end, and the other side of the cutter 3 is a cutting edge 31. The drive end of the drive assembly 2 can directly drive the cutter 3 to reciprocate in a straight line within the movable area 12. Furthermore, during the movement, the cutter 3 can move from one side of the input port 14 to the other side of the input port 14.

[0057] The feeding assembly 4 is also mounted on the frame 1 and located on the back of the cutting area 11. The feeding assembly 4 has a feeding channel 41, one end of which is connected to the input port 14, and the extension direction of the feeding channel 41 is perpendicular to the movement direction of the drive end. The feeding channel 41 extends in a straight line.

[0058] The pushing component 5 is located at the bottom of the feeding component 4, and the pushing component has a pushing end located in the feeding channel 41. The pushing end can make reciprocating linear motion within the feeding channel 41, and the direction of motion of the pushing end is consistent with the extension direction of the feeding channel 41.

[0059] A collection tank 6 is also provided on the frame 1. The top of the collection tank 6 is open, and the top of the collection tank 6 connects to the connection port 13 at the bottom of the cutting area 11. In addition, the connection port 13 is located directly below the input port 14. A suction port is also provided on the back of the collection tank 6, and the suction end of the suction assembly 7 connects to the suction port on the collection tank 6. Generally, the suction assembly 7 can be a vacuum cleaner.

[0060] After the entire device is installed, the cutting area 11, the feeding channel 41 and the collection tank 6 are in a closed structure.

[0061] The working principle of this embodiment is as follows:

[0062] The pushing end of the pushing component 5 pushes the target 8 in the unloading component 4 from the input port 14 into the active area 12. The driving component 2 is installed on the side of the cutting area 11. The driving end of the driving component 2 drives the cutter 3 to make reciprocating linear motion, thereby cutting the target 8 into blocks. The cut target blocks 81 fall into the collection tank 6 from the connection port 13. The chips, residues and radioactive gases generated during the cutting process are sucked away by the dust suction component 7, so that the target blocks 81 falling into the collection tank 6 will not contain chips or residues.

[0063] This technical solution can prevent chips and residues from falling into the collection tank 6 and can prevent the leakage of radioactive gases.

[0064] In one specific embodiment:

[0065] The drive component 2 is a pneumatic mechanism, and the cutting device also includes an air supply system.

[0066] Specifically, the drive assembly 2 includes a piston 21, a first air supply pipe 22, a first vent valve 23, a first air supply valve 24, a second air supply pipe 25, a second vent valve 26, and a second air supply valve 27. A sealed movable cavity 15 is provided at the top of the frame 1. This movable cavity 15 is located at the end of the movable area 12 away from the input port 14, and a through hole 16 connects the movable cavity 15 and the movable area 12.

[0067] The piston 21 is movably disposed in the movable cavity 15. A straight connecting rod 28 is provided on one end of the piston 21 near the through hole 16. The length direction of the connecting rod 28 is consistent with the length direction of the movable cavity 15, and the connecting rod 28 passes through the through hole 16. The through hole 16 is provided with a structure similar to a sealing ring for isolating the movable area 12 and the movable cavity 15.

[0068] The aforementioned cutting tool 3 is mounted on the end of the connecting rod 28 away from the piston 21. Therefore, the connecting rod 28 is the driving end of the driving assembly 2. When the piston 21 is located at the end of the movable cavity 15 near the through hole 16, the cutting tool 3 is located on the side of the input port 14 away from the movable cavity 15. When the piston 21 is located at the end of the movable cavity 15 away from the through hole 16, the cutting tool 3 is located on the side of the input port 14 near the movable cavity 15.

[0069] One end of the first air supply pipe 22 is connected to one end of the movable cavity 15, and the second air supply pipe 25 is connected to the other end of the movable cavity 15. The other ends of both the first air supply pipe 22 and the second air supply pipe 25 are connected to the air supply system. The first air supply pipe 22 is equipped with a first vent valve 23 and a first air supply valve 24, and the second air supply pipe 25 is equipped with a second vent valve 26 and a second air supply valve 27.

[0070] During operation, the drive assembly 2 is powered by the air supply system to move the piston 21. Specifically, when the cutter 3 needs to perform a cutting action close to the input port 14, the first air supply valve 24 opens, the second exhaust valve opens, the first exhaust valve closes, and the second air supply valve 27 closes. At this time, the piston 21 and the connecting rod 28 drive the cutter 3 to approach and cross the input port 14. Conversely, when the first air supply valve 24 is closed, the second exhaust valve is closed, the first exhaust valve is open, and the second air supply valve 27 is open, the cutter 3 moves towards the movable chamber 15.

[0071] Preferably, a spring 29 is provided at each end of the movable cavity 15 to prevent the piston 21 from impacting the inner wall of the movable cavity 15 when it moves. In addition, one of the springs 29 is sleeved on the connecting rod 28.

[0072] In addition, pressure gauges 210 are installed on the first gas supply pipe 22 and / or the second gas supply pipe 25, and the gas pressure value of the gas supply system can be monitored in real time through pressure gauges 210.

[0073] In another specific embodiment:

[0074] The connection port 13 is provided with a connecting flange 17, and the top of the collection tank 6 is provided with a mating flange 18. Through the two flanges, the active area 12 and the collection tank 6 can be quickly connected, and it is also convenient to set a sealing gasket between the collection tank 6 and the active area 12.

[0075] A lifting assembly 19 is provided at the bottom of the collection tank 6. The collection tank 6 can be directly driven to rise or fall through the lifting assembly 19, which facilitates the installation of the collection tank 6. The lifting assembly 19 can be a pneumatic cylinder or a hydraulic cylinder.

[0076] In another specific embodiment:

[0077] The pushing component 5 includes a slider 51, a screw 52, ​​and a motor 53. Specifically, the slider 51 is elongated and slides within the feeding channel 41. The slider 51 has a threaded hole inside, which extends through both ends of the slider 51.

[0078] The screw 52 is fitted into the threaded hole in the slider 51. One end of the screw 52 is coaxially connected to the output shaft of the motor 53, and the motor 53 is fixedly mounted on the end of the feeding channel 41 away from the input port 14.

[0079] In this embodiment, the screw 52 is driven to rotate by the motor 53, thereby driving the slider 51 to move within the feeding channel 41. After the target 8 in the unloading assembly 4 falls into the feeding channel 41, the slider 51 pushes the target 8 from the input port 14 to the cutting area 11, where it is cut in conjunction with the drive assembly 2 and the cutter 3. Thus, it can be seen that the slider 51 is the pushing end of the pushing assembly 5.

[0080] As can be seen from the background art, the target 8 is a cylindrical structure. Therefore, the feeding channel 41 is generally designed to be a cylindrical channel. Thus, a limiting groove 54 is provided on the side of the feeding channel 41, and a protruding structure matching the limiting groove 54 is provided on the slider 51 to prevent the slider 51 from rotating with the screw 52.

[0081] In another specific embodiment:

[0082] The feeding assembly 4 also has a storage area 42, which is located above the feeding channel 41. The bottom of the storage area 42 is connected to the top of the feeding channel 41. The storage area 42 is located at the end of the feeding channel 41 near the input port 14. The length direction of the storage area 42 is consistent with the length direction of the feeding channel 41.

[0083] The length of the storage area 42 is greater than or equal to the length of a single target 8, and the length of the storage area 42 is less than twice the length of the target 8. In addition, the width of the storage area 42 is greater than or equal to the diameter of the target 8, and less than or equal to twice the diameter of the target 8, so that only one target 8 can be stored in the storage area 42 in the horizontal direction.

[0084] The length of the feeding channel 41 is greater than the sum of the length of the storage area 42 and the length of a target 8.

[0085] One end of the screw 52 is fixedly connected to the output shaft of the motor 53, and the other end of the screw 52 is close to the end of the storage area 42 away from the input port 14. In addition, the length of the slider 51 is greater than or equal to the distance between the end of the storage area 42 close to the motor 53 and the input port 14.

[0086] In this embodiment, the target pieces 8 to be cut are stacked in the storage area 42 in sequence. After the slider 51 drives one target piece 8 into the cutting area 11, the slider 51 pushes the other target pieces 8 into the storage area 42. When the slider 51 is retracted, all the target pieces 8 in the storage area 42 move down. At this time, the slider 51 can drive another target piece 8 into the cutting area 11.

[0087] In another specific embodiment:

[0088] A sensor 9 is provided on the side of the connection port 13 in the cutting area 11. When the sensor 9 senses that a target block 81 is falling, the vacuuming assembly 7 is automatically activated.

[0089] In another specific embodiment:

[0090] The cutting area 11 has an active area 12 on each side. The cutting area 11 is symmetrically provided with a drive assembly 2 and a cutter 3 on both sides. The drive ends of the two drive assemblies 2 move in a mirror motion.

[0091] Among them, the blade 3 has an arc-shaped structure on one side of the blade 31, the blades 31 of the two blades 3 are arranged opposite each other with their concave sides, and the blades 31 of the two blades 3 are staggered, and the sides of the two blades 3 can contact each other to form a structure similar to scissors.

[0092] In this embodiment, by setting two cutting tools 3 and two drive components 2, the cutting efficiency can be improved.

[0093] The embodiments described above are merely illustrative of specific implementations of the present invention, and while the descriptions are detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A cutting device for medical radioisotope targets, characterized in that, include: The cutting area has an active area on one side, a connection port at the bottom, and an input port at the back. A drive assembly is disposed on the side of the cutting area, the drive assembly having a drive end capable of reciprocating along a straight line, the end of the drive end being located within the active area; The cutting tool has one side connected to the end of the drive end, and the other side of the cutting tool is the cutting edge; The feeding assembly is located on the back of the cutting area, and its bottom has a feeding channel that connects to the input port. The extending direction of the feeding channel is perpendicular to the movement direction of the drive end. A pushing component having a pushing end capable of reciprocating along a straight line, the pushing end being disposed within the feeding channel; The collection tank has an open top and connects to the aforementioned connection port; A vacuuming assembly, the vacuuming end of which is connected to the collection tank.

2. The cutting device for medical radioisotope targets according to claim 1, characterized in that, The drive component is a pneumatic mechanism, and the cutting device also includes an air supply system.

3. The cutting device for medical radioisotope targets according to claim 2, characterized in that, The driving component includes: A movable cavity is located on the side of the cutting area; A piston is movably disposed within the movable chamber, and one end of the piston has a rod that passes through the movable area and is connected to the cutting tool; A first air supply pipe has one end connected to one end of the movable cavity, and the first air supply pipe has a first vent valve and a first air supply valve. The second air supply pipe has one end connected to the other end of the movable cavity, and the second air supply pipe has a second vent valve and a second air supply valve. The other end of the first gas supply pipe and the other end of the second gas supply pipe are both connected to the gas supply system.

4. The cutting device for medical radioisotope targets according to claim 3, characterized in that, A spring is provided at the end of the movable cavity away from the movable area.

5. The cutting device for medical radioisotope targets according to claim 3, characterized in that, A pressure gauge is installed on the first gas supply pipeline.

6. The cutting device for medical radioisotope targets according to claim 1, characterized in that, The connection port is provided with a connecting flange, and the top of the collection tank is provided with a docking flange; The bottom of the collection tank is equipped with a lifting component.

7. The cutting device for medical radioisotope targets according to claim 1, characterized in that, The push component includes: A slider is slidably disposed within the feeding channel, and the slider has threaded holes penetrating both ends thereof; The screw is fitted into the threaded hole on the slider; A motor is located at the end of the feeding channel away from the input port, and the output shaft of the motor is poweredly connected to one end of the screw.

8. The cutting device for medical radioisotope targets according to claim 7, characterized in that, The side of the feeding channel has a limiting groove, and the slider has a protrusion structure that matches the limiting groove.

9. The cutting device for a medical radioisotope target according to claim 7, characterized in that, The feeding assembly includes a storage area located above the feeding channel, and the length of the storage area is greater than or equal to the length of the target. One end of the screw is close to one end of the storage area, and this end of the storage area is far from the input port. Furthermore, the length of the slider is greater than or equal to the distance between this end of the storage area and the input port.

10. The cutting device for a medical radioisotope target according to any one of claims 1-9, characterized in that, The cutting area has an active area on each side, and the driving component and the cutting tool are symmetrically arranged on both sides of the cutting area; The drive ends of the two drive components move in a mirror motion.

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