Electron beam radiation shielding device based on continuous production

Abstract

The utility model relates to the field of electron beam curing, in particular to an electron beam radiation shielding device based on continuous production, which comprises a cuboid shielding box, a conveying mechanism arranged in the shielding box along the length direction of the shielding box, a shielding mechanism arranged in the shielding box, and an auxiliary locking mechanism arranged on the shielding mechanism, at least four panels are arranged on the shielding box at intervals, rectangular openings for workpieces to be radiated to penetrate through are formed in the panels, and the shielding mechanisms are arranged on the panels and can seal the openings; the shielding mechanism comprises a mounting frame, a shielding door slidably connected in the mounting frame, and a driving assembly arranged on the inner wall of the shielding box and used for driving the shielding door to be opened and closed. The driving assembly comprises an electric push rod fixedly arranged on the inner wall of the shielding box, a first linkage rod with the two ends hinged to a piston rod of the electric push rod and the shielding door respectively, and a second linkage rod with the two ends hinged to the shielding door and the installation frame respectively, and the effect of maintaining the stability and the transportation speed of the production line is achieved.

Description

Technical Field

[0001] This application relates to the field of electron beam curing, and in particular to an electron beam radiation shielding device based on continuous production. Background Technology

[0002] Currently, during electron beam irradiation processing, the electron beam hitting the irradiated object or the inner wall of the channel will generate harmful X-rays in the irradiated area. X-rays are ionizing radiation, unlike non-ionizing radiation such as visible light and ultraviolet (UV) light. They interact with matter in a complex way and have characteristics such as reflection and transmission at interfaces.

[0003] The existing method involves placing the accelerator electron beam equipment in the center of the production line's maze passage, with the production line's inlet and outlet corresponding to the maze passage's inlet and outlet. The maze passage's bends and stacking structures greatly reduce the amount of X-ray radiation leaking from the production line's inlet and outlet.

[0004] The existing technical solutions mentioned above have the following drawbacks: the presence of slopes and turns in the maze-like passage will reduce the stability of the production line and reduce the operating speed of the production line to a certain extent, thereby reducing production efficiency. At the same time, it will also require a large amount of shielding materials and space. Utility Model Content

[0005] In order to improve production efficiency, reduce the consumption of shielding materials and save production space, this application provides an electron beam radiation shielding device based on continuous production.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution:

[0007] An electron beam radiation shielding device based on continuous production includes a rectangular shielding box, a conveying mechanism disposed within the shielding box along the length of the shielding box, a shielding mechanism disposed within the shielding box, and an auxiliary locking mechanism disposed on the shielding mechanism.

[0008] The shielding box has at least four panels spaced apart, with rectangular openings on the panels for the workpiece to be irradiated to pass through. The shielding mechanism is installed on the panels and can close the openings.

[0009] The shielding mechanism includes a mounting frame, a shielding door slidably connected within the mounting frame, and a drive assembly disposed on the inner wall of the shielding box for driving the shielding door to open and close.

[0010] The drive assembly includes an electric push rod fixedly mounted on the inner wall of the shielding box, a first connecting rod with its two ends respectively hinged to the piston rod of the electric push rod and the shielding door, and a second connecting rod with its two ends respectively hinged to the shielding door and the mounting frame.

[0011] By adopting the above technical solution, at least four sets of shielding mechanisms are installed inside the shielding box to effectively separate and shield the transport space within the box. During the process of the workpiece entering, being irradiated, and being transported out of the box, different processes within the box can be shielded sequentially, thus effectively shielding the radiation. The overall shielding mechanism has a simple structure, flexible operation, and small footprint, effectively shielding both the ends and the interior of the shielding box. A conveying mechanism is installed along the length of the rectangular shielding box, allowing the workpiece to be irradiated to be transported in a straight line. This saves production space and effectively increases the transport speed and production efficiency of the workpiece.

[0012] Optionally, a vertical limiting groove is provided on the inner wall of the mounting frame, and a limiting slider is rotatably installed on the side wall of the shielding door, the limiting slider being slidably disposed in the limiting groove.

[0013] By adopting the above technical solution, a stable connection is formed between the shielding door and the mounting frame, and the shielding door can operate smoothly within the mounting frame, thereby facilitating the shielding of radiation within the shielding box.

[0014] Optionally, when the shielding door closes the opening, the limit slider is located at the bottom of the limit groove.

[0015] By adopting the above technical solution, the limiting slider and the limiting groove can limit the travel of the shielding door, thereby further ensuring that the shielding door can accurately close the installation frame and improve the accuracy of shielding radiation.

[0016] Optionally, the shielding mechanism is provided with two sets of drive components, which are symmetrically arranged on both sides of the shielding box along its length.

[0017] By adopting the above technical solution, the two sets of drive components can make the shielding door more evenly stressed during operation, thereby improving the smoothness of the shielding door's operation.

[0018] Optionally, the auxiliary locking mechanism includes a fixed shell fixedly disposed within the mounting frame, a movable plate movably disposed within the fixed shell, a rod fixedly connected to the movable plate, and a spring disposed in the mounting shell in an extended state. The two ends of the spring abut against one end of the mounting shell and the movable plate, respectively. The two ends of the rod are movably inserted into the two ends of the mounting shell, and the end of the rod near the movable plate is machined into a hemispherical shape and can be inserted into the shielding door.

[0019] By adopting the above technical solution, and by using the auxiliary locking mechanism and the limiting slider and limiting groove to restrict the shielding door, the stability of the shielding door in closing the mounting frame is further improved.

[0020] Optionally, the shielding box includes a strip-shaped base plate, a first side plate and a second side plate fixed on both sides of the base plate along its length, a top plate fixed on the upper part of the side plates, a front panel and a rear panel fixed on opposite ends of the base plate, and two intermediate panels fixed on the base plate and located between the front panel and the rear panel and spaced apart.

[0021] By adopting the above technical solutions, the efficiency of radiation shielding can be effectively improved.

[0022] Optionally, the distance between the middle panel and the front panel and the rear panel is smaller than the distance between the two middle panels.

[0023] By adopting the above technical solution, it is beneficial for the workpiece to be irradiated to operate inside the shielding box, while also providing a larger operating space for opening and closing the shielding door.

[0024] Optionally, the bottom plate and the top plate are respectively fixed to mounting rods on the same side along the length direction, and the first side plate is detachably connected to the mounting rods.

[0025] By adopting the above technical solution, it is convenient to install components such as the conveying mechanism inside the shielded box, while also facilitating the maintenance of the inside of the shielded box.

[0026] Optionally, the conveying plane of the conveying mechanism is not lower than the lower edge of the opening.

[0027] By adopting the above technical solution, it is easier to transport the workpiece to be irradiated.

[0028] Optionally, a rectangular feed inlet is provided on the front panel, and a placement plate is horizontally fixed to the outer panel, wherein the surface of the placement plate is not lower than the lower edge of the feed inlet.

[0029] By adopting the above technical solution, it is convenient to place the workpiece to be irradiated before entering the shielding box, and it is also convenient for the workpiece to be irradiated to enter the shielding box.

[0030] In summary, this application has the following technical effects:

[0031] 1. By setting up a shielding box, a conveying mechanism, a shielding mechanism, and an auxiliary locking mechanism, the shielding mechanism can effectively separate and shield the transport space inside the shielding box, and can sequentially shield different processes inside the shielding box. A conveying mechanism is set up along the length of the shielding box inside the rectangular shielding box, which can make the workpiece to be irradiated transported in a straight line on the conveying mechanism, thereby saving production space and effectively improving the transport speed of the workpiece to be irradiated and improving production efficiency.

[0032] 2. By setting limit grooves and limit sliders, a stable connection is formed between the shielding door and the mounting frame, and the shielding door can operate smoothly within the mounting frame, thereby facilitating the shielding of radiation inside the shielding box.

[0033] 3. By setting the limit slider to the bottom of the limit groove when the shielding door closes the opening, the limit slider and the limit groove can limit the travel of the shielding door, thereby further ensuring that the shielding door can accurately close the installation frame and improve the accuracy of shielding radiation. Attached Figure Description

[0034] Figure 1 This is a structural diagram of the object of this application;

[0035] Figure 2 This is a side view of the shielding box without the first side panel.

[0036] Figure 3 This is a structural diagram of the platform screen door when it is open;

[0037] Figure 4 This is a structural diagram of the platform screen door when it is closed;

[0038] Figure 5 Assembly structure diagram of the platform screen door and mounting frame;

[0039] Figure 6 This is a cross-sectional view of the auxiliary locking mechanism.

[0040] Explanation of reference numerals in the attached drawings: 1. Shielding box; 11. Base plate; 12. First side plate; 13. Second side plate; 14. Top plate; 15. Front panel; 16. Rear panel; 17. Middle panel; 18. Electron beam accelerator; 19. Fixing rod; 2. Conveying mechanism; 21. First conveyor; 22. Second conveyor; 23. Third conveyor; 3. Shielding mechanism; 31. Mounting frame; 311. Limiting groove; 312. Fixing plate; 32. Shielding door; 321. Limiting slider; 322. First ear plate; 323. Second ear plate; 33. Drive assembly; 331. Electric push rod; 332. First connecting rod; 333. Second connecting rod; 4. Auxiliary locking mechanism; 41. Mounting shell; 42. Movable plate; 43. Insert rod; 44. Spring; 5. Placement plate. Detailed Implementation

[0041] The present application will be further described in detail below with reference to the accompanying drawings.

[0042] This application discloses an electron beam radiation shielding device based on continuous production, used for radiation processing and conveying of workpieces to be irradiated. Combined with... Figures 1-3The shielding device includes a rectangular shielding box 1, a conveying mechanism 2 arranged inside the shielding box 1 along the length of the shielding box 1, a shielding mechanism 3 arranged along the length of the shielding box 1, an auxiliary locking mechanism 4 arranged on the shielding mechanism 3, and a placement plate 5 arranged horizontally and fixedly arranged outside one end of the shielding box 1.

[0043] Combination Figure 1 , Figure 2 The shielding box 1 includes a horizontally arranged base plate 11, a first side plate 12 and a second side plate 13 vertically arranged and fixed to both sides of the base plate 11 along its length, a top plate 14 horizontally arranged and fixed to the edges of the first side plate 12 and the second side plate 13 along their length, a front panel 15 and a rear panel 16 fixedly arranged at both ends of the base plate 11, two intermediate panels 17 fixedly connected to the inner surfaces of the base plate 11, the side plates, and the top plate 14 on their four sides, an electron beam accelerator 18 fixedly arranged on the inner surface of the top plate 14 and located between the two intermediate panels 17, and two fixing rods 19 arranged along the length of the shielding box 1 and fixedly arranged on one side of the base plate 11 and the top plate 14 along their length. The two intermediate panels 17 are spaced apart from the front panel 15 and the rear panel 16, and the distance between the intermediate panels 17 and the front panel 15 and the rear panel 16 is smaller than the distance between the two intermediate panels 17. The length of the fixing rod 19 is the same as the length of the base plate 11 and it is a square rod. The first side plate 12 is detachably connected to the two fixing rods 19 by bolts.

[0044] Reference Figure 2 The conveying mechanism 2 includes a first conveyor 21, a second conveyor 22 and a third conveyor 23. The first conveyor 21 is located between the front panel 15 and the middle panel 17, the second conveyor 22 is located between the two middle panels 17, and the third conveyor 23 is located between the middle panel 17 and the rear panel 16. The two middle panels 17 are respectively spaced apart from the ends of the first conveyor 21, the second conveyor 22 and the third conveyor 23.

[0045] The conveyor includes a mounting plate that is parallel to each other and horizontally arranged in the length direction, multiple conveying rollers that are spaced apart along the length direction of the mounting plate, a chain that connects the multiple conveying rollers in sequence, and a motor for driving the conveying rollers to rotate. The multiple conveying rollers are all located at the same height. The chain and motor are not shown in this embodiment.

[0046] The front panel 15 has an inlet for the workpiece to be irradiated to enter the shielding box 1, the rear panel 16 has an outlet, and the middle panel 17 has a through hole. The inlet, outlet, and through hole are square holes of the same size and height, and the lower edge of the square hole is not lower than the conveying plane formed by multiple conveying rollers. The shielding structure 3 is provided in four sets, respectively on the front panel 15, the two middle panels 17, and the rear panel 16, to close the four square holes, thereby achieving the purpose of shielding radiation.

[0047] Combination Figures 3-5 The shielding mechanism 3 includes a mounting frame 31 fixedly mounted on the panel, a shielding door 32 slidably connected to the mounting frame 31, and a drive assembly 33 disposed on the inner surface of the second side panel 13 and connected to the shielding door 32. The mounting frame 31 is a rectangular frame, and the rectangular hole formed by the mounting frame 31 is larger than the opening on the panel. The area of ​​the shielding door 32 is smaller than the rectangular hole of the mounting frame 31 but larger than the opening on the panel and can completely cover the opening. The two mounting frames 31 mounted on the front panel 15 and the rear panel 16 are both located inside the shielding box 1.

[0048] Vertical limiting grooves 311 are provided on both vertical and opposite inner walls of the mounting frame 31. A fixing plate 312 is fixedly installed on the side of the mounting frame 31 facing the inside of the shielding box 1. Limiting sliders 321 are rotatably installed on the two opposite outer walls of the shielding door 32 via fixed shafts. A first ear plate 322 and a second ear plate 323 are fixedly installed at intervals on the plate surface of the shielding door 32 away from the panel. The limiting sliders 321 are slidably installed in the limiting grooves 311. When the shielding door 32 completely covers the opening, the limiting sliders 321 are located at the lower end of the limiting grooves 311. The bottom surface and two sides of the shielding door 32 are in contact with the bottom inner wall and two opposite inner walls of the mounting frame 31, respectively. The top edge of the shielding door 32 is spaced apart from the top inner wall of the mounting frame 31, and the plate surface of the shielding door 32 is in contact with the plate surface, thereby sealing and shielding the opening on the panel. The upper and lower outer walls of the shielding door 32 are both machined with rounded corners, which facilitates the opening and closing of the shielding door 32 within the mounting frame 31.

[0049] Reference Figure 5 The drive assembly 33 includes an electric push rod 331 vertically and fixedly mounted on the inner wall of the second side plate 13, a first connecting rod 332 with one end hinged to the piston rod of the electric push rod 331, and a second connecting rod 333 with both ends hinged to the fixed plate 312 and the first ear plate 322 respectively. The end of the first connecting rod 332 away from the electric push rod 331 is hinged to the second ear plate 323. A fixed seat is fixedly connected to the piston rod of the electric push rod 331, and a fixed shaft is mounted on the fixed seat. The axis of the fixed shaft is perpendicular to the length direction of the piston rod. The end of the first connecting rod 332 is sleeved on the fixed shaft, which provides a limit for the first connecting rod 332, so that the first connecting rod 332 is stably hinged to the electric push rod 331. Fixed shafts are also provided on the fixed plate 312, the first ear plate 322, and the second ear plate 323 for hinged connection of the first connecting rod 332 and the second connecting rod 333.

[0050] Each shielding door 32 is connected to two sets of drive components 33, which are located on opposite sides of the shielding door 32. The two sets of drive components 33 drive the shielding door 32, making the shielding door 32 more stable during use.

[0051] During the opening process, the two shielding doors 32 located on the front panel 15 and the rear panel 16 rotate towards the top plate 14 until the shielding door 32 is parallel to the top plate 14. This minimizes the distance between the first conveyor 21 and the feed inlet, and minimizes the distance between the discharge end of the third conveyor 23 and the discharge port, so that the workpiece to be irradiated can be stably conveyed on the conveying mechanism 2.

[0052] Reference Figure 6 The auxiliary locking mechanism 4 is located at the lower part of the mounting frame 31. It includes a mounting shell 41 embedded in the mounting frame 31, a movable plate 42 movably disposed in the mounting shell 41, a rod 43 passing through and fixedly connected to the movable plate 42, and a spring 44 naturally extended and sleeved on the rod 43 and located in the mounting shell 41. The two ends of the spring 44 abut against the inner wall of one end of the movable plate 42 and the mounting shell 41, respectively. The two ends of the shell are a closed end and an open end, respectively. A sealing plate (not shown in the figure) is detachably fixed to the open end. The sealing plate shell is removed to place the movable plate 42, the rod 43 and the spring 44 in the mounting shell 41.

[0053] The length of the insertion rod 43 is greater than the length of the mounting shell 41, and both ends of the insertion rod 43 are movably inserted into the ends of the mounting shell 41. The end of the insertion rod 43 near the movable plate 42 is located outside the end of the mounting shell 41, and this end is machined into a hemispherical shape. The other end of the insertion rod 43 is movably inserted into the mounting frame 31. When the hemispherical end of the insertion rod 43 is disengaged from the shielding door 32, the other end of the insertion rod 43 is always located within the mounting frame 32. A groove is provided on the lower surface of the shielding door 32 for the insertion rod 43 to be inserted. When the shielding door 32 closes its opening, the shielding door 32 abuts against the hemispherical end of the insertion rod 43, causing the insertion rod 43 to retract into the mounting shell 41. When the end of the insertion rod 43 aligns with the groove, the spring 44 pushes the insertion rod 43 into the groove, thereby forming an auxiliary lock for the shielding door 32, preventing gaps from appearing between the shielding door 32 and the opening due to vibrations or accidental contact during the use of the shielding device.

[0054] Reference Figure 1 One end of the placement plate 5 is fixed to the outer plate surface of the front panel 15. The upper plate surface of the placement plate 5 is not lower than the lower edge of the feed port, so that the workpiece to be irradiated can be placed on the placement plate 5 first, which is convenient for putting the workpiece to be irradiated into the shielding box 1.

[0055] In this embodiment, the opening and closing of the shielding door can be achieved by setting a physical power switch, allowing staff to control the shielding door one by one. Alternatively, a distance sensor and a processor electrically connected to the distance sensor can be installed on the shielding box or the shielding door. The processor is also electrically connected to the electric push rod. When the distance sensor detects the workpiece to be irradiated, or after the workpiece to be irradiated has completely passed by, the processor controls the electric push rod to open or close the shielding door.

[0056] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A continuous production based electron beam radiation shielding device, characterized by: It includes a rectangular shielding box (1), a conveying mechanism (2) arranged inside the shielding box (1) along the length of the shielding box (1), a shielding mechanism (3) arranged inside the shielding box (1), and an auxiliary locking mechanism (4) arranged on the shielding mechanism (3); The shielding box (1) has at least four panels spaced apart. The panels have rectangular openings for the workpiece to be irradiated to pass through. The shielding mechanism (3) is installed on the panels and can close the openings. The shielding mechanism (3) includes a mounting frame (31), a shielding door (32) slidably connected in the mounting frame (31), and a drive assembly (33) provided on the inner wall of the shielding box (1) for driving the shielding door (32) to open and close. The drive assembly (33) includes an electric push rod (331) fixedly mounted on the inner wall of the shielding box (1), a first connecting rod (332) with its two ends respectively hinged to the piston rod of the electric push rod (331) and the shielding door (32), and a second connecting rod (333) with its two ends respectively hinged to the shielding door (32) and the mounting frame (31).

2. The continuous production based electron beam radiation shielding device according to claim 1, characterized in that: The inner wall of the mounting frame (31) is provided with a vertical limiting groove (311), and the side wall of the shielding door (32) is rotatably installed with a limiting slider (321), which is slidably disposed in the limiting groove (311).

3. A continuous production based electron beam radiation shielding device according to claim 2, characterized in that: When the shielding door (32) closes the opening, the limiting slider (321) is located at the bottom of the limiting groove (311).

4. The continuous production based electron beam radiation shielding device according to claim 1 or 3, characterized in that: The shielding mechanism (3) is provided with two sets of drive components (33), which are symmetrically arranged on both sides of the shielding box (1) along its length.

5. The continuous production based electron beam radiation shielding device according to claim 1, wherein: The auxiliary locking mechanism (4) includes a fixed shell fixedly installed in the mounting frame (31), a movable plate (42) movably installed in the fixed shell, a plug rod (43) fixedly connected to the movable plate (42), and a spring (44) in an extended state installed in the mounting shell (41). The two ends of the spring (44) abut against one end of the mounting shell (41) and the movable plate (42) respectively. The two ends of the plug rod (43) are movably inserted into the two ends of the mounting shell (41) respectively, and the end of the plug rod (43) near the movable plate (42) is processed into a hemispherical shape and can be inserted into the shielding door (32).

6. The continuous production based electron beam radiation shielding device according to claim 1, wherein: The shielding box (1) includes a strip-shaped base plate (11), a first side plate (12) and a second side plate (13) fixed on both sides of the base plate (11) along its length, a top plate (14) fixed on the upper part of the side plates, a front panel (15) and a rear panel (16) fixed on opposite ends of the base plate (11), and two intermediate panels (17) fixed on the base plate (11) and located between the front panel (15) and the rear panel (16) and spaced apart.

7. A continuous production based electron beam radiation shielding device according to claim 6, characterized in that: The distance between the middle panel (17) and the front panel (15) and the rear panel (16) is smaller than the distance between the two middle panels (17).

8. A continuous production based electron beam radiation shielding device according to claim 7, characterized in that: The bottom plate (11) and the top plate (14) are respectively fixed with mounting rods on the same side along the length direction, and the first side plate (12) is detachably connected to the mounting rods.

9. The continuous production based electron beam radiation shielding device according to claim 1, wherein: The conveying plane of the conveying mechanism (2) is not lower than the lower edge of the opening.

10. The continuous production based electron beam radiation shielding device according to claim 6, wherein: The front panel (15) is provided with a rectangular feeding port, and a placing plate (5) is horizontally fixed on the outer plate surface, and the plate surface of the placing plate (5) is not lower than the lower edge of the feeding port.

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