CN113782248A - Electron beam irradiation processing system - Google Patents
Electron beam irradiation processing system Download PDFInfo
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- CN113782248A CN113782248A CN202110841521.XA CN202110841521A CN113782248A CN 113782248 A CN113782248 A CN 113782248A CN 202110841521 A CN202110841521 A CN 202110841521A CN 113782248 A CN113782248 A CN 113782248A
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- 238000010894 electron beam technology Methods 0.000 title claims abstract description 54
- 238000012545 processing Methods 0.000 title claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 66
- 238000000034 method Methods 0.000 claims abstract description 24
- 230000008569 process Effects 0.000 claims abstract description 21
- 230000001681 protective effect Effects 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 82
- 238000005452 bending Methods 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 6
- 239000000872 buffer Substances 0.000 description 45
- 230000003139 buffering effect Effects 0.000 description 22
- 230000009471 action Effects 0.000 description 11
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- 238000011161 development Methods 0.000 description 4
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 3
- 238000009930 food irradiation Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 230000005461 Bremsstrahlung Effects 0.000 description 2
- 239000007853 buffer solution Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 230000003044 adaptive effect Effects 0.000 description 1
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- 230000005540 biological transmission Effects 0.000 description 1
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- 238000012993 chemical processing Methods 0.000 description 1
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K5/00—Irradiation devices
- G21K5/10—Irradiation devices with provision for relative movement of beam source and object to be irradiated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
- B65G47/24—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles
- B65G47/248—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles by turning over or inverting them
-
- G—PHYSICS
- G12—INSTRUMENT DETAILS
- G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
- G12B17/00—Screening
- G12B17/02—Screening from electric or magnetic fields, e.g. radio waves
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- Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The invention discloses an electron beam irradiation processing system, which relates to the technical field of irradiation equipment, and the technical scheme main points are as follows: the automatic goods turning device comprises a conveying belt for conveying goods, an irradiation box for emitting electron beams and an automatic turning device for turning the goods, wherein the conveying belt is formed by arranging a plurality of feeding rollers and is of an annular structure; the protection device comprises a protection plate and a driving mechanism, wherein the protection plate is arranged at the emitting end of the irradiation box and can move between an unfolding position and a folding position; in the unfolding position, the protection plate is shielded between the emitting end of the irradiation box and the goods; in the retracted position, the emission end of the irradiation box is open towards the goods; the drive mechanism drives the protective panel between the deployed position and the stowed position. The invention can obstruct unstable electron beams in the restarting process of irradiation equipment and improve the efficiency of irradiation processing.
Description
Technical Field
The invention relates to the technical field of irradiation equipment, in particular to an electron beam irradiation processing system.
Background
With the development of technical economy, the improvement of material civilization, and the continuous perfection and perfection of laws and regulations, and with the continuous improvement of understanding of superiority of people on irradiation disinfection and sterilization, the whole trend of replacing traditional chemical processing by irradiation processing is strong, the prospect is bright, and the method is widely applied to the fields of food, medical treatment, chemical industry, mineral products and the like. Taking food irradiation as an example, the development of food irradiation technology starts in the 40 th 20 th century, and numerous experts and scholars in various countries of the world carry out a great deal of research and experiment work in the aspects of radiation technology, radiation chemistry, radiation biology, microbiology, nutrition, toxicology and the like, and are currently used more. The food irradiation is a physical processing process, belongs to cold processing, has low energy consumption, does not need to add chemical drugs, has no drug residue problem, can keep the original color, aroma and taste of the food, and is particularly important for flavor food and food which is not suitable for high-temperature sterilization.
At present, an irradiation system is often used in cooperation with a conveying belt, goods are driven to pass below an electron beam through the conveying belt, and irradiation treatment on the goods is realized; in order to improve the irradiation treatment effect, the front and back sides of part of the goods are often irradiated twice, so that the interior of the goods can also be subjected to stable irradiation treatment, and therefore, in the irradiation process, the goods need to be manually turned over, extra labor force is needed, and the conveyer belt of the irradiation system is often operated continuously, the manual turning needs continuous operation, so that turning omission can be generated slightly by carelessness, the goods are irradiated twice at one side, the irradiation is not uniform, and even the goods can be damaged; when the irradiation system generates an emergency stop condition, goods of the irradiation system can be right under the emitting end of the electron beam, the goods need to be manually evacuated, otherwise unstable electron beam irradiation is carried out in the restarting and frequency increasing process, the irradiation dose is not easy to control, multiple processes need to be matched with manual operation, the labor cost is improved, and the irradiation treatment efficiency is also influenced.
Therefore, a new solution is needed to solve this problem.
Disclosure of Invention
The present invention is directed to solving the above problems, and an object of the present invention is to provide an electron beam irradiation processing system capable of blocking an unstable electron beam during a restart of an irradiation device and improving efficiency of irradiation processing.
The technical purpose of the invention is realized by the following technical scheme: an electron beam irradiation processing system comprises a conveying belt for conveying goods, an irradiation box for emitting electron beams and an automatic turning device for turning over the goods, wherein the conveying belt is formed by arranging a plurality of feeding rollers and is of an annular structure; the protection device comprises a protection plate and a driving mechanism, wherein the protection plate is arranged at the emitting end of the irradiation box and can move between an unfolding position and a folding position; in the unfolding position, the protection plate is shielded between the emitting end of the irradiation box and the goods; in the retracted position, the emission end of the irradiation box is open towards the goods; the drive mechanism drives the protective panel between the deployed position and the stowed position.
The invention is further provided that one end of the protection plate is rotationally connected to the lower part of the irradiation box through a rotating bracket, and the other end of the protection plate is driven to rotate through a driving mechanism.
The invention is further configured such that the protection plate is disposed below the emission end of the irradiation cassette, the protection plate is slidable between an extended position and a retracted position, the driving mechanism is a linear actuator, the linear actuator is fixedly mounted at a lower portion of the irradiation cassette, and the protection plate is fixedly connected to a driving end of the linear actuator.
The invention is further provided that two sides of the irradiation box are provided with slide rails, two sides of the protection plate are provided with sliding parts, and the protection plate can slide along the slide rails through the sliding parts; the slideway of the sliding rail comprises a horizontal section, an inclined section and a vertical section which are sequentially connected, the slideway is upward from the horizontal section to the vertical section, and the inclined section is connected between the tail end of the horizontal section and the lower end of the vertical section; when the sliding plate slides to the horizontal section, the protection plate is shielded between the transmitting end and the goods; when sliding to vertical section, the protection shield shifts out from between emission end and goods, and the emission end is opened towards the goods.
The invention is further arranged that the sliding parts at two sides of the protection plate comprise a first guide pulley and a second guide pulley, the first guide pulley is positioned at one side of the second guide pulley, which is far away from the vertical end, and the driving end of the driving mechanism is abutted against the part of the first guide pulley, which extends out of the slideway, and is used for pushing and pushing the first guide pulley to move towards the direction of the inclined section in the horizontal section; and the upper end of the vertical section is provided with a locking mechanism, and the locking mechanism is used for locking the second guide pulley so as to maintain the protection plate at the retracted position.
The automatic material turning device is characterized in that two groups of automatic material turning devices are arranged on the conveying belt, the material turning assembly comprises a material turning frame and a swinging mechanism, the material turning frame comprises a plurality of material turning rods bent at right angles, two supporting seats and two connecting rods are arranged at the lower part of the feeding roller, the two supporting seats are fixedly arranged at two sides of the lower part of the feeding roller, one ends of the connecting rods are hinged to the supporting seats, the other ends of the connecting rods are hinged to one side of the material turning rods, and the swinging mechanism is connected with a hinged joint at the outer corner of the bending angle of the material turning rods and used for driving the material turning rods to swing in a reciprocating mode.
The invention is further arranged in that the material turning assembly comprises a material turning frame, the material turning frame comprises a plurality of material turning rods bent at right angles, the lower part of the feed roller is provided with two supporting seats and two connecting rods, the two supporting seats are fixedly arranged at two sides of the lower part of the feed roller, one end of each connecting rod is hinged to the corresponding supporting seat, and the other end of each connecting rod is hinged to one side of the material turning rod; the outer angle of the bending angle of the material turning rod is fixedly connected with a hinged joint, and the material turning rod further comprises a swinging mechanism, wherein the swinging mechanism is connected with the hinged joint and used for driving the material turning rod to swing in a reciprocating mode.
The invention is further configured that the swing mechanism comprises a telescopic rod, the mounting end of the telescopic rod is hinged to the fixed seat, and the telescopic end of the telescopic rod is hinged to the hinged joint.
The invention is further set that the swing mechanism comprises a linear push rod fixedly arranged below the feeding roller, the linear push rod comprises a push block capable of sliding in a reciprocating manner, a guide sliding sleeve is fixedly connected onto the push block, a guide sliding rod is connected in the guide sliding sleeve in a sliding manner, and the upper end of the guide sliding rod extends out of the upper end of the guide sliding sleeve and is hinged with the hinged joint.
The invention is further provided that, in the reciprocating swing process of the material turning rod, the material turning rod moves from a first position to a second position, and the bending angle of the material turning rod deflects by 90 degrees; when the material turning rod is at the first position and the second position, the first edge and the second edge of the material turning rod are both positioned in the wide range of the feeding roller;
when the material turning rod is at the first position, the first edge of the material turning rod is vertical to the feeding rollers and extends upwards from the space between the feeding rollers, and the second edge of the material turning rod is parallel to the feeding rollers and is positioned below the feeding rollers;
when the material turning rod is at the second position, the second edge of the material turning rod is vertical to the feeding rollers and extends upwards from the space between the feeding rollers, and the first edge of the material turning rod is parallel to the feeding rollers and is positioned below the feeding rollers;
in the process that the material turning rod deflects from the first position to the second position, the height of an inner angle area of a bending angle of the material turning rod exceeds the upper part of the feeding roller.
In conclusion, the invention has the following beneficial effects:
in the irradiation processing system, the automatic conveying of irradiated goods is realized on the basis of the conveying belt for circulating conveying, and the automatic turning device is combined, so that the goods in the conveying process can be turned, the irradiation treatment on the front side and the back side of the goods in the circulating conveying process can be realized, the manual turning is not needed, the labor cost is reduced, and the irradiation treatment efficiency is improved; adopt protection device to shelter from the protection between irradiation box and or, can completely cut off the electron beam that the electron beam is unstable at the in-process of rising frequency and keep apart, improved irradiation treatment's homogeneity, be convenient for control irradiation dose, need not the manual work moreover and withdraw the goods, also play the effect that reduces the cost of labor.
Drawings
FIG. 1 is a schematic top view of an electron beam irradiation processing system according to the present invention;
FIG. 2 is a schematic diagram of a first position of an automatic upender of an electron beam irradiation processing system according to the present invention;
FIG. 3 is a schematic view of the middle position of the automatic material turning device of the electron beam irradiation processing system of the present invention;
FIG. 4 is a schematic diagram of a second position of the automatic material turning device of the electron beam irradiation processing system of the present invention;
FIG. 5 is a first schematic structural diagram of a first embodiment of the automatic stirring device of the present invention;
FIG. 6 is a second schematic structural view of the first embodiment of the automatic stirring device of the present invention;
FIG. 7 is a first schematic structural diagram of a second embodiment of the automatic stirring device of the present invention;
FIG. 8 is a second structural schematic view of a second embodiment of the automatic stirring device of the present invention;
FIG. 9 is a schematic view of an exhaust hood of an electron beam irradiation processing system according to the present invention;
FIG. 10 is a schematic structural diagram of a protection device according to a third embodiment of the present invention;
FIG. 11 is a schematic structural diagram of a protection device according to a fourth embodiment of the present invention;
FIG. 12 is a first schematic structural diagram of a protection device according to a fifth embodiment of the present invention;
FIG. 13 is a second schematic structural diagram of a protection device according to a fifth embodiment of the present invention;
FIG. 14 is an enlarged view taken at A in FIG. 13;
FIG. 15 is a side view of a fifth embodiment of the present invention;
FIG. 16 is a schematic structural view of a fifth embodiment of the present invention, wherein the protective plate is in a deployed position on the slide rail;
FIG. 17 is a schematic view of a fifth embodiment of the invention showing the protective sheet in a stowed position on the chute;
fig. 18 is a first schematic structural view of a slide rail, a buffer mechanism and a locking mechanism according to a fifth embodiment of the present invention;
fig. 19 is a second schematic structural view of the slide rail, the buffer mechanism and the locking mechanism according to the fifth embodiment of the present invention;
FIG. 20 is a schematic structural diagram of a locking mechanism according to a fifth embodiment of the present invention;
FIG. 21 is an enlarged partial view of a locking mechanism in accordance with a fifth embodiment of the present invention;
FIG. 22 is a schematic structural diagram of a fifth embodiment of a damping mechanism according to the present invention;
fig. 23 is a schematic structural view of a supporting shaft, a limiting member and a sliding rail of a sliding member according to a sixth embodiment of the present invention.
Reference numerals: 1. an irradiation box; 2. a conveyor belt; 3. a mounting frame; 4. a protection plate; 5. rotating the bracket; 6. a drive mechanism; 7. a slide rail;
8. a slider; 81. a first guide pulley; 82. a second guide pulley; 83. a support shaft; 84. a chute; 85. a limiting member; 86. a wheel disc; 87. a first ring groove; 88. limiting and buffering; 89. a second ring groove; 810. a convex ring; 811. a bearing; 812. an elastic ring;
9. a buffer mechanism; 91. a buffer rod; 92. a buffer seat; 93. a buffer sliding sleeve; 94. a first buffer sliding block; 95. a second buffer sliding block; 96. a first buffer spring; 97. a buffer slide block III; 98. a second buffer spring; 99. a conical projection; 910. a conical depression; 911. a third buffer spring; 912. a cavity;
10. a locking mechanism; 101. a locking groove; 102. a locking block; 103. a locking sleeve; 104. a locking recess; 105. a first locking spring; 106. an electromagnet; 107. a second locking spring; 108. a bevel; 109. a vertical plane; 110. a bottom surface;
11. a driving end; 12. a slideway; 13. an exhaust hood; 131. an exhaust hole; 132. folding edges; 133. an exhaust pipe; 134. a fan;
14. a horizontal segment; 15. an inclined section; 16. a vertical section; 17. goods;
18. a feed roller;
19. a material overturning assembly; 20. a material turning frame; 201. a material turning rod; 202. bending corners;
21. a supporting seat; 22. a connecting rod; 23. an articulated joint; 24. a telescopic rod; 25. a fixed seat;
26. a linear push rod; 27. a pushing block; 28. a guide sliding sleeve; 29. a guide slide bar;
30. and an irradiation chamber.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The embodiment discloses an electron beam irradiation processing system, as shown in fig. 1-4 and fig. 9, a conveying belt 2 in a closed loop structure is taken as a basis, goods 17 are prevented from being circularly conveyed above the conveying belt 2, the conveying belt 2 is formed by arranging a plurality of feeding rollers 18, two groups of automatic material turning devices are arranged on the conveying belt 2, and are distributed along the direction of the conveying belt, so that the front and the back of the goods 17 can be turned over; the conveying belt 2 is used for conveying goods 17, the conveying belt 2 is used for conveying the goods, the goods 17 is arranged on the conveying belt 2, the conveying belt 30 is used for shielding and protecting the radiation, the electron beam irradiation system comprises an irradiation box 1, the irradiation box 1 is arranged above the conveying belt 2, the electron beams are emitted from the lower portion of the irradiation box 1, and the goods are irradiated.
In order to clean the ozone discharge in the irradiation process, an exhaust hood 13 is arranged on one side below the lower emission end of the irradiation box 1, the exhaust hood 13 is connected with an exhaust pipe 133 with a fan 134, and the ozone generated in the irradiation process can be adsorbed and discharged under the action of the fan 134; the exhaust hood 13 is provided with an exhaust hole 131 inclined upward toward the lower emission end side of the irradiation cassette 1, and ozone gas can enter the exhaust hole 131, and in order to avoid clogging, the exhaust hole 131 is covered with a filter net, and the exhaust hood 13 is provided with a flap 132 inclined upward to guide the sucked flow direction.
Second embodiment
The embodiment discloses an electron beam irradiation processing system, which is optimized on the basis of the first embodiment, and is described in detail with reference to fig. 1 to 6.
The automatic material overturning device comprises an overturning component 19 which is arranged on a conveying belt 2 formed by arranging a plurality of feeding rollers 18, the overturning component 19 comprises an overturning frame 20, and part of the structure of the overturning frame 20 penetrates through the feeding rollers 18, so that the goods 17 above the overturning frame can be supported and overturned; the material turning frame 20 comprises a plurality of material turning rods 201 which are bent at right angles, two supporting seats 21 and two connecting rods 22 are arranged at the lower part of the feeding roller 18, the two supporting seats 21 are fixedly arranged at the two sides of the lower part of the feeding roller 18, one end of each connecting rod 22 is hinged to the corresponding supporting seat 21, and the other end of each connecting rod 22 is hinged to one side of each material turning rod 201, so that a structure similar to a four-connecting rod 22 is formed; the outer corner of the bending corner 202 of the material turning rod 201 is fixedly connected with a hinged joint 23, and power transmission is realized through the hinged joint 23; the material overturning assembly 19 further comprises a swinging mechanism for outputting power, and the swinging mechanism is connected with the hinged joint 23 and outputs power to the material overturning rod 201 to drive the material overturning rod 201 to swing in a reciprocating manner.
The swing mechanism can adopt various structures and can drive the material turning rod 201 to swing, for example, as shown in fig. 5 and 6, the swing mechanism comprises a telescopic rod 24, the mounting end of the telescopic rod 24 is hinged to the fixing seat 25, the telescopic end of the telescopic rod 24 is hinged to the hinged joint 23, the material turning rod 201 can move from the vertical state at one side in fig. 6 to the state in fig. 5 by being pushed by the telescopic rod 24, and then the moving state is basically symmetrical to the state in fig. 6, so that the turning of the material turning rod 201 can be realized, and the goods 17 borne on the material turning rod 201 can be driven to turn;
for example, referring to fig. 7 and 8, the swing mechanism may further employ an electric-driven linear push rod 26, the linear push rod 26 is fixedly installed below the feeding roller 18, the linear push rod 26 includes a push block 27 capable of sliding back and forth, an upward-facing guide sliding sleeve 28 is fixedly connected to the push block 27, a guide sliding rod 29 is slidably connected to the guide sliding sleeve 28, and an upper end of the guide sliding rod 29 extends from an upper end of the guide sliding sleeve 28 and is hinged to the hinge joint 23, so that the turning rod 201 can be driven during the movement of the push block 27 driven by the electric push rod, and the turning rod 201 and the loaded goods 17 can be turned over.
During the reciprocating swing of the turnover rod 201, the turnover rod 201 moves from a first position to a second position, the bending angle 202 of the turnover rod 201 deflects 90 degrees, the first position is the state shown in fig. 6 or 8, the structure of the second position is not shown and is in a similar symmetrical state, and fig. 5 or 7 shows an intermediate position of the turnover rod from the first position to the second position;
in the first position, the first edge of the material turning rod 201 is vertical to the feed rollers 18 and extends upwards from the space between the feed rollers 18, and the second edge of the material turning rod 201 is parallel to the feed rollers 18 and is positioned below the feed rollers 18; in the second position, the second edge of the material turning rod 201 is vertical to the feeding rollers 18 and extends upwards from the space between the feeding rollers 18, and the first edge of the material turning rod 201 is parallel to the feeding rollers 18 and is positioned below the feeding rollers 18; thereby can overturn 90 with the goods 17 that the interior angle position of turn-down pole 201 bore, through two sets of automatic turn-down device's continuous action, can overturn 180 to goods 17, realize goods 17's positive and negative upset.
In order to facilitate the turning of the goods 17, the turning rod 201 is controlled to deflect from the first position to the second position, the height of an inner angle area of a bending angle 202 of the turning rod exceeds the upper part of the feeding roller 18, when the turning rod is in the position, namely in the state shown in fig. 5 or 7, two side faces of the goods 17 can be attached to two right-angle edges of the turning rod 201, and then the turning of the goods 17 can be realized in the continuous movement process.
In order to facilitate the conveying stability of the goods 17, when the material turning rod 201 is at the first position and the second position, the first edge and the second edge of the material turning rod 201 are both located in the wide range of the feeding roller 18, so that the goods 17 can be continuously conveyed on the conveying belt 2 all the time.
EXAMPLE III
The present embodiment discloses an electron beam irradiation processing system, and the protection device in the above embodiments is described in detail. Referring to fig. 10, the protection device includes a protection board 4 and a driving mechanism 6, the protection board 4 is located at an electron beam emitting end of the radiation box, the general radiation box 1 is a triangular cover body with a large lower part and a small upper part, and is fixed by mounting frames 3 at two sides, the electron beam is emitted from the emitting end below the radiation box, and performs radiation treatment on goods 17 below; the protection plate 4 is positioned at the position of the emitting end at the lower part of the irradiation box 1; the protection shield 4 can shelter from the electron beam that emits from irradiation box 1, generally adopts the unable penetrable lead plate of electron beam radiation, because the exclusive use lead plate protects, can cause bremsstrahlung, covers at the upper strata of lead plate and has high plumbous optical glass, can effectively reduce bremsstrahlung.
Generally, a corresponding cargo 17 conveying line is installed in the irradiation system to drive the cargo 17 to be conveyed from the lower part of the irradiation box 1 to pass through, and the cargo 17 is subjected to irradiation treatment by the electron beams when passing through.
The protection plate 4 is in a movable structure and can move between an unfolding position and a folding position by being driven by a driving mechanism 6; in the unfolded position, the protection plate 4 is shielded between the emitting end of the irradiation box 1 and the goods 17; in the stowed position, the emission end of the irradiation box 1 is open towards the goods 17; can change the position state of protection shield 4 through actuating mechanism 6 to switch the switching condition of irradiation box 1 lower part emission end for below goods 17, can be when irradiation equipment's electron beam frequency is unstable, remove protection shield 4 to the development position, thereby block the protection to goods 17, when treating the electron beam frequency and reach stable value, again through with protection shield 4 from development position activity to packing up the position, make the electron beam can normally irradiate goods 17, improved the even degree of irradiation.
The driving mechanism 6 can be driven by various driving modes, such as an electric push rod, a pneumatic mode or a hydraulic mode, and can drive the protection plate 4 to move; the expanded position of the protection plate 4 is generally positioned below the irradiation box 1, and the protection plate can also be arranged at the position of the corresponding electron beam irradiation end in equipment with different structural styles; the retracted position of the protection plate 4 is located on one side of the extended position of the protection plate 4, and the protection plate 4 does not block the emitting end of the radiation box 1.
The protection plate 4 can adopt various forms such as sliding, rotating and the like, and can move between an unfolding position and a folding position; in this embodiment, the protection plate 4 is a rectangular lead plate, the driving structure can select a linear driver which is relatively simple to control, one side of the longer side of the protection plate 4 is rotatably connected to the lower part of the irradiation box 1 through a rotating bracket 5, the other side of the protection plate 4 is driven to rotate through a driving mechanism 6, the fixed end of the linear driver is rotatably connected to the irradiation box 1, the driving end 11 is rotatably connected with the other end of the protection plate 4, the protection plate 4 is driven to move under the driving of the linear driver, a rotary door structure which can be opened and closed is formed below the irradiation box 1, and the shielding and opening of the emitting end of the irradiation box 1 and one side of the goods 17 can be realized.
In order to facilitate the control of the protective device, a reserve power supply can be added, which can continue to function as a drive device after the irradiation device has stopped working, so as to drive the movement of the protective plate 4.
The embodiment also discloses an electron beam irradiation protection method, which adopts the irradiation protection device to protect the irradiated goods 17; when the electron beam irradiation device works normally, the irradiation power is at a stable value, the protection plate 4 is at a retracting position, and the emitting end of the irradiation box 1 is opened towards the goods 17; when the electron beam irradiation device is in emergency shutdown, irradiation is stopped, then the driving mechanism 6 drives the protection plate 4 to move to the unfolding position, and the protection plate 4 is shielded between the emitting end of the irradiation box 1 and the goods 17; after the electron beam irradiation device is restarted, the irradiation power rises, and the protection plate 4 is in the unfolding position; until the irradiation power reaches a stable value, the driving mechanism 6 drives the protection plate 4 to move to the unfolding position, and the emitting end of the irradiation box 1 is opened towards the goods 17.
The running time of the driving mechanism 6 can be automatically controlled in a pre-programmed mode, and when the electron beam irradiation device starts to unfold signals after emergency shutdown, corresponding actions are generated to enable the protection plate 4 to move to the unfolded position; and then, after the irradiation power of the electron beam is normal, a retraction signal is sent out to generate a desired movement, so that the protection plate 4 moves to a retraction position.
Example four
The present embodiment discloses an electron beam irradiation processing system, which has substantially the same structure as the third embodiment, and differs only in the moving manner of the protection plate 4 and the installation form of the driving mechanism 6, as shown in fig. 11, the protection plate 4 is located below the emission end of the irradiation box 1, and in the present embodiment, with a sliding structure, the protection plate 4 can slide between the extended position and the retracted position; the driving mechanism 6 can also select a linear driver, the linear driver can be directly and fixedly arranged at the lower part of the irradiation box 1, the protection plate 4 is fixedly arranged at the driving end 11 of the linear driver, and translational sliding is realized below the irradiation box 1 through linear driving of the linear driver, so that the irradiation box 1 is opened and closed.
Because the density of the lead plate is relatively high, the slide rails 7 (not shown in fig. 11) can be arranged at the two sides of the lower part of the irradiation box 1, the sliding parts 8 which are matched with each other are arranged at the two sides of the protection plate 4, the protection plate 4 can slide along the slide rails 7 through the sliding parts 8, the operation of the protection plate 4 is pre-supported and limited, the linear driver only realizes the driving function, the action stability and the service life of the protection plate 4 can be improved, and the stress influence of the linear driver is reduced.
EXAMPLE five
The present embodiment discloses an electron beam irradiation processing system, which further optimizes the sliding structure of the protection plate 4 and correspondingly sets the driving mechanism 6 on the basis of the fourth embodiment, and is described in detail with reference to fig. 12-22.
The two sides of the lower part of the irradiation box 1 are provided with slide rails 7, and the two sides of the protection plate 4 are provided with adaptive sliding parts 8 to form an auxiliary sliding structure; a slide way 12 in the slide rail 7 forms an upward inclined structure, and specifically comprises a horizontal section 14, an inclined section 15 and a vertical section 16 which are sequentially connected, wherein the inclined section 15 is connected between the tail end of the horizontal section 14 and the lower end of the vertical section 16; as shown in fig. 16, when the protection plate 4 slides to the horizontal section 14, the protection plate 4 is shielded between the emitting end and the cargo 17, i.e. located at the unfolding position; as shown in fig. 17, the protection plate 4 continues to slide along the slide rail 7, and when the protection plate 4 slides to the vertical section 16, the protection plate 4 is moved out from between the emitting end and the cargo 17, the emitting end is opened toward the cargo 17, that is, the emitting end is located at the retracted position, and the protection plate 4 is folded upwards along the upwards-bent slide rail 12, so that the protection plate 4 is lifted upwards, and compared with the downward-folded rotation, the protection plate is prevented from touching the cargo 17 passing below.
The sliding parts 8 on two sides of the protection plate 4 comprise two parts, namely a first guide pulley 81 and a second guide pulley 82 which are distributed front and back along the sliding rail 7, the first guide pulley 81 is positioned on one side, away from the vertical end, of the second guide pulley 82, in the sliding process, the first guide pulley 81 slides in the horizontal section 14 of the sliding rail 12, and in the moving process of the first guide pulley 81 towards the vertical end, the first guide pulley continues to move upwards from the horizontal section 14, then passes through the inclined section 15 and then enters the vertical section 16 to slide upwards, so that the protection plate 4 is in an upwards inclined state.
The driving mechanism 6 can also adopt a linear actuator, the linear actuator is arranged on the mounting frames 3 at two sides of the irradiation box 1, the driving end 11 of the linear actuator is abutted against the part of the first guide pulley 81 extending out of the slide way 12, the linear actuator can be abutted to push the first guide pulley 81 to move towards the inclined section 15 in the horizontal section 14 in the linear motion process, and the position of the second guide pulley 82 is closer to the inclined section 15, so that the linear actuator can slide upwards along the inclined section 15 firstly and enter the vertical section 16; in the driving process of the linear actuator, only the abutting support is formed, and a fixed connecting structure is not formed, so that smaller stress can be formed after certain deformation is generated, and the load condition of the linear actuator in the moving process can be reduced; when the protection plate 4 moves from the retracted position to the extended position, the protection plate 4 can slide downward under the action of the gravity of the protection plate 4, and then the protection plate 4 can move.
As shown in fig. 18 and 19, a locking mechanism 10 may be provided at the upper end of the vertical section 16, and the locking mechanism 10 is used for locking the second guide pulley 82 on the protection plate 4 to maintain the protection plate 4 in a state of opening the emission end toward the cargo 17. When the driving mechanism 6 pushes the protection plate 4 to move obliquely upwards, the second guide pulley 82 slides to the locking mechanism 10 at the upper end of the vertical section 16, the position of the second guide pulley 82 is locked, the protection plate 4 is locked at the retracted position, the linear actuator of the driving mechanism 6 can directly return at the moment and is not affected by the load of the protection plate 4, the load stress of the linear actuator can be reduced, and the service life of the linear actuator is prolonged.
As shown in fig. 20 and 21, the locking mechanism 10 includes a locking block 102, a locking spring i 105, an electromagnet 106, and other components, opposite locking grooves 101 are formed on two sides of the vertical section 16, two ends of the locking block 102 respectively extend into the locking grooves 101 on the two sides to form a structure capable of moving left and right, a downward locking recess 104 is formed at a position of the locking block 102 corresponding to the slide rail 12, the locking recess 104 has a slightly larger contour and is used for accommodating the locking recess 104 of the second guide pulley 82, the locking spring i 105 is used for elastically maintaining the locking recess 104 of the locking block 102 right opposite to the slide groove 84, the electromagnet 106 is located on the other side of the locking groove 101 and is mutually matched and adsorbed with the magnetic component, and can drive the locking block 102 to slide into the locking groove 101, so that the side wall below the locking groove 101 blocks the locking recess 104, and lock and limit the second guide pulley 82 sliding into the locking recess 104.
Referring to fig. 20, the cross section of the locking recess 104 may be in a shape of a right trapezoid, and includes a downward opening, an upper bottom surface 110, a lateral inclined surface 108, and a vertical surface 109, where the inclined surface 108 is located on a side away from the magnetic attraction of the electromagnet 106, and when the second pulley 82 sinks into the locking recess 104, the second pulley 82 abuts against the bottom surface 110, the inclined surface 108, and the vertical surface 109, and when the second pulley 82 is limited, the second pulley 82 is mainly subjected to the magnetic attraction of the electromagnet 106, and a pushing action of pressing the second pulley 82 is generated by one side of the inclined surface 108, and due to the inclined surface 108 having a certain downward inclined angle, downward pressure is generated on the second pulley 82, so that the pressing and friction between the second pulley 82 and the lower side wall of the locking groove 101 can be increased, and the stability of the second pulley 82 after locking can be further increased; when the irradiation equipment is powered off or the production shop is powered off, the magnetism of the electromagnet 106 disappears, at this time, the lower opening of the locking recess 104 is opposite to the slide way 12 under the action of the locking spring I105, the second guide pulley 82 enters the slide way 12, and then the protection plate 4 slides downwards along the slide way 12 under the action of gravity, automatically slides to the unfolding position from the folding position, and forms pre-shielding for the emitting end at the lower part of the irradiation box 1; when the second guide pulley 82 enters the vertical section 16 from the lower part to realize locking, the electromagnet 106 can automatically control to realize action; the structure of normal close of the power-on can also be adopted, because the existence of the inclined plane 108 on the locking recess 104, when the guide pulley second 82 moves upwards, the guide pulley second 82 is abutted against the inclined plane 108 of the locking recess 104, and under the action of the inclined plane 108, a certain horizontal component force is generated for the locking block 102, and the locking block 102 is pushed to move to the left (the direction of the drawing 20 is shown), so that the lower end of the locking recess 104 is opened to be opposite to the slide 12 of the vertical section 16 until the guide pulley second 82 completely enters the locking recess 104, and then the electromagnet 106 adsorbs and drives the locking block 102 to be certain, so that the locking recess 104 is blocked, and the locking of the guide pulley second 82 is realized.
In order to increase the stability of the locking block 102 in the process of receiving an upward or downward component force, a locking sleeve 103 is additionally arranged in the locking mechanism 10, the locking block 102 is arranged in the locking sleeve 103, two sides of the locking sleeve 103 are slidably connected in the locking groove 101, a locking spring I105 elastically presses between the bottom surface 110 of the locking groove 101 and the outer wall of the locking sleeve 103, an electromagnet 106 is arranged in the locking groove 101 on the other side, and the locking sleeve 103 is made of a magnetic material; the magnetic attraction to the locking sleeve 103 can drive the locking block 102 to move, so that the locking action is realized; the locking block 102 can slide up and down in the locking sleeve 103, so that a certain space floating up and down is formed in the locking sleeve 103 by the locking block 102, and a locking spring II 107 is elastically pressed on the upper part of the locking block 102, so that the locking block 102 has certain upward elastic floating and maintains a relatively fixed position under the action of the locking spring II 107; when the inclined surface 108 of the locking recess 104 is acted, the second locking spring 107 can be overcome, the locking block 102 is prevented from being locked, and the second guide pulley 82 can be conveniently extruded into the locking recess 104 from the lower part to a certain extent.
As shown in fig. 18, 19 and 22, a buffer mechanism 9 is provided at one end of the horizontal section 14 away from the inclined section 15, so as to buffer and limit the protection board 4 sliding down under the self-weight; the buffering mechanism 9 comprises a buffering rod 91 and a buffering seat 92, a buffering slide block I94 is connected in an inner cavity of the buffering seat 92 in a sliding manner, one side, away from the sliding chute 84, of the buffering slide block I94 is elastically supported through an elastic component, one end of the buffering rod 91 is fixedly connected with the buffering slide block I94, and the other end of the buffering rod 91 penetrates through a buffering sliding sleeve 93 in the buffering seat 92 and extends into the horizontal section 14 of the slideway 12 to be used for abutting against a buffering guide pulley I81; and under the condition of no stress, the end part of the buffer rod 91 is beyond the driving end 11 of the driving mechanism 6, namely, the guide pulley 81 of the buffer rod is contacted with the end part of the buffer rod 91 for buffering in the process of sliding the protection plate 4 downwards, so that the driving mechanism 6 is prevented from being damaged by impact collision.
As shown in fig. 22, the elastic assembly includes a second buffer slider 95 and a third buffer slider 97, the second buffer slider 95 abuts against the third buffer slider 97, a first buffer spring 96 elastically abuts against the second buffer slider 95 and the first buffer slider 94, a second buffer spring 98 abuts against the third buffer slider 97 and the bottom surface 110 of the inner cavity of the buffer seat 92, the buffer impact is more stably absorbed by adopting multiple sets of springs, the first buffer spring 96 is relatively soft, the elastic deformation floats greatly, the deformation buffering is mainly realized by the floating, and the second buffer spring 98 mainly plays a role in supporting the second buffer slider 95 and the third buffer slider 97.
The tapered protrusion 99 is arranged on one side of the buffer slider three 97 facing the buffer slider two 95, the tapered recess 910 which is sleeved with the tapered protrusion 99 is arranged on one side of the buffer slider two 95 facing the buffer slider three 97, the profile of the tapered protrusion 99 is slightly larger than that of the tapered recess 910, the outer side of the buffer slider two 95 is in sliding fit with the inner cavity wall of the buffer base 92, when the buffer slider two 95 is impacted, a movement trend towards the left side is generated, at the moment, the tapered protrusion 99 and the tapered recess 910 are squeezed by the tapered protrusion 99, the tapered recess 910 in the buffer slider two 95 is squeezed by an outward squeezing component force, so that the buffer slider two 95 generates a certain amount of outward deformation, the profile is slightly enlarged, the squeezing friction between the outer wall of the buffer slider two 95 and the inner wall of the buffer base 92 is increased, so that the buffer slider two 95 is stabilized to form an almost fixed effect, the impact of the protection plate 4 can be better borne, and the bottom surface 110 of the buffer seat 92 is prevented from being damaged due to excessive stress by the side wall.
A buffer spring III 911 can be elastically pressed between the top of the conical protrusion 99 and the bottom of the conical recess 910, and a containing cavity 912 for partially containing the buffer spring III 911 is arranged at the top of the conical protrusion 99; (ii) a After the buffering rod 91 receives buffering, the buffering slide block II 95 and the buffering slide block III 97 are pushed away by the elastic support of the buffering spring III 911, the conical protrusion 99 is separated from the conical recess 910, and the buffering slide block II 95 recovers smooth sliding in the inner cavity of the buffering seat 92.
EXAMPLE six
In the present embodiment, an electron beam irradiation processing system is disclosed, which is further improved on the basis of the fifth embodiment in order to further increase the lateral stability of the sliding on the protection plate 4, and the detailed description is provided with reference to fig. 23.
The upper side surface and the lower side surface of the slideway 12 are provided with sliding chutes 84, and the sliding chutes 84 are distributed along the trend of the slideway 12; the first guide pulley 81 and the second guide pulley 82 are rotatably connected with the protection plate 4 through a support shaft 83, the support shaft 83 is sleeved with a limiting piece 85, the limiting piece 85 and the support shaft 83 are axially limited, and the limiting piece 85 is embedded into the sliding chute 84, so that axial movement is limited and supported, and stability in the moving process is improved.
The limiting part 85 comprises two wheel discs 86, a second ring groove 89 for accommodating a bearing 811 is formed in the end face of the wheel disc 86 opposite to the end face, a convex ring 810 fixedly connected with the supporting shaft 83 is preset in the second ring groove 89, the bearing 811 is pressed between the convex ring 810 and the step face of the second ring groove 89, the bearing 811 can smoothly rotate the wheel disc 86, and the bearing 811 can adopt a self-aligning roller bearing 811 or a bearing 811 capable of bearing an axial load; the limiting springs are elastically abutted between the wheel discs 86, the first ring grooves 87 used for partially accommodating the limiting springs are formed in the end faces of the wheel discs 86, the elastic rings 812 are arranged on the peripheries of the first ring grooves 87, and therefore when large axial load is received, certain elastic floating can be formed between the two wheel discs 86, axial stability of the sliding piece 8 is kept, and stable movement of the protection plate 4 is kept.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. An electron beam irradiation processing system is characterized by comprising a conveying belt (2) for conveying goods (17), an irradiation box (1) for emitting electron beams and an automatic material turning device for turning over the goods (17), wherein the conveying belt (2) is formed by arranging a plurality of feeding rollers (18) and is of an annular structure; the irradiation box (1) is arranged above the conveying belt (2), the protection device is arranged below the lower emission end of the irradiation box (1), the protection device comprises a protection plate (4) and a driving mechanism (6), and the protection plate (4) is arranged at the emission end of the irradiation box (1) and can move between an unfolding position and a folding position; in the unfolding position, the protection plate (4) is shielded between the emission end of the irradiation box (1) and the goods (17); in the retracted position, the emission end of the irradiation box (1) is open in the direction of the goods (17); the drive mechanism (6) moves between a deployed position and a stowed position with the drive protection plate (4).
2. An electron beam irradiation processing system according to claim 1, wherein one end of the protection plate (4) is rotatably connected to the lower part of the irradiation box (1) through a rotating bracket (5), and the other end of the protection plate (4) is driven to rotate through a driving mechanism (6).
3. An electron beam irradiation processing system according to claim 1, wherein the protection plate (4) is arranged below the emission end of the irradiation box (1), the protection plate (4) is slidable between the deployed position and the retracted position, the driving mechanism (6) is a linear actuator, the linear actuator is fixedly mounted at the lower part of the irradiation box (1), and the protection plate (4) is fixedly connected to the driving end (11) of the linear actuator.
4. An electron beam irradiation processing system according to claim 1, wherein the irradiation box (1) is provided with slide rails (7) on both sides, the protection plate (4) is provided with slide members (8) on both sides, and the protection plate (4) can slide along the slide rails (7) through the slide members (8); the slide way (12) of the slide rail (7) comprises a horizontal section (14), an inclined section (15) and a vertical section (16) which are sequentially connected, the slide way (12) moves upwards from the horizontal section (14) to the vertical section (16), and the inclined section (15) is connected between the tail end of the horizontal section (14) and the lower end of the vertical section (16); when the sliding plate slides to the horizontal section (14), the protection plate (4) is shielded between the transmitting end and the goods (17); when sliding to the vertical section (16), the protective plate (4) is moved out from between the launch end and the goods (17), the launch end being open towards the goods (17).
5. An electron beam irradiation processing system according to claim 4, wherein the sliding member (8) on both sides of the protection plate (4) comprises a first guide pulley (81) and a second guide pulley (82), the first guide pulley (81) is located on one side of the second guide pulley (82) facing away from the vertical end, and the driving end (11) of the driving mechanism (6) abuts against the part of the first guide pulley (81) extending out of the slideway (12) and is used for pushing the first guide pulley (81) to move towards the inclined section (15) in the horizontal section (14) in an abutting mode; and a locking mechanism (10) is arranged at the upper end of the vertical section (16), and the locking mechanism (10) is used for locking the second guide pulley (82) to maintain the protection plate (4) at the retracted position.
6. The electron beam irradiation processing system according to claim 1, wherein two sets of automatic material turning devices are disposed on the conveyor belt (2), the material turning assembly (19) includes a material turning frame (20) and a swinging mechanism, the material turning frame (20) includes a plurality of material turning rods (201) bent at right angles, two supporting seats (21) and two connecting rods (22) are disposed at a lower portion of the feeding roller (18), the two supporting seats (21) are fixedly mounted at two sides of the lower portion of the feeding roller (18), one end of each connecting rod (22) is hinged to the corresponding supporting seat (21), the other end of each connecting rod is hinged to one side of the material turning rod (201), and the swinging mechanism is connected to a hinged joint (23) at an outer corner of a bending angle (202) of the material turning rod (201) and is used for driving the material turning rod (201) to swing back and forth.
7. The electron beam irradiation processing system according to claim 6, wherein the material turning assembly (19) comprises a material turning frame (20), the material turning frame (20) comprises a plurality of material turning rods (201) bent at right angles, two supporting seats (21) and two connecting rods (22) are arranged at the lower part of the feed roller (18), the two supporting seats (21) are fixedly arranged at two sides of the lower part of the feed roller (18), one end of each connecting rod (22) is hinged to the corresponding supporting seat (21), and the other end of each connecting rod is hinged to one side of the material turning rod (201); the outer angle department fixedly connected with hinged joint (23) of the angle of buckling (202) of stirring pole (201), still include swing mechanism, swing mechanism is connected with hinged joint (23) for drive stirring pole (201) reciprocating swing.
8. The electron beam irradiation processing system of claim 7, wherein the swing mechanism comprises a telescopic rod (24), the mounting end of the telescopic rod (24) is hinged to the fixed seat (25), and the telescopic end of the telescopic rod (24) is hinged to the hinged joint (23).
9. The electron beam irradiation processing system of claim 7, wherein the swing mechanism comprises a linear push rod (26) fixedly installed below the feeding roller (18), the linear push rod (26) comprises a push block (27) capable of sliding in a reciprocating manner, a guide sliding sleeve (28) is fixedly connected to the push block (27), a guide sliding rod (29) is connected in the guide sliding sleeve (28) in a sliding manner, and the upper end of the guide sliding rod (29) extends out of the upper end of the guide sliding sleeve (28) and is hinged to the hinge joint (23).
10. The electron beam irradiation processing system according to claim 6, wherein during the reciprocating swing of the material turning rod (201), the material turning rod (201) moves from the first position to the second position, and the bending angle (202) of the material turning rod (201) is deflected by 90 degrees; when the material turning rod (201) is at the first position and the second position, the first edge and the second edge of the material turning rod (201) are both positioned in the wide range of the feeding roller (18);
when the material turning device is at the first position, the first edge of the material turning rod (201) is vertical to the feeding rollers (18) and extends upwards from the space between the feeding rollers (18), and the second edge of the material turning rod (201) is parallel to the feeding rollers (18) and is positioned below the feeding rollers (18);
when the material turning rod is at the second position, the second edge of the material turning rod (201) is vertical to the feeding rollers (18) and extends upwards from the space between the feeding rollers (18), and the first edge of the material turning rod (201) is parallel to the feeding rollers (18) and is positioned below the feeding rollers (18);
during the process that the material turning rod (201) deflects from the first position to the second position, the height of an inner angle area of a bending angle (202) of the material turning rod exceeds the upper part of the feeding roller (18).
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| CN202110841521.XA CN113782248A (en) | 2021-07-26 | 2021-07-26 | Electron beam irradiation processing system |
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| CN114457518A (en) * | 2022-01-24 | 2022-05-10 | 奥美医疗用品股份有限公司 | Automatic sewing production line and method for surgical towel |
| CN114852645A (en) * | 2022-05-18 | 2022-08-05 | 淄博京科电气有限公司 | Automatic control device for mechanical equipment production and use method thereof |
| CN116513716A (en) * | 2023-06-21 | 2023-08-01 | 江苏盛泰电力设备有限公司 | Wear-resisting lining plate mechanism for mine conveyor |
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