CN110451172A - A kind of electron beam irradiation screening arrangement based on rotation barricade - Google Patents
A kind of electron beam irradiation screening arrangement based on rotation barricade Download PDFInfo
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- CN110451172A CN110451172A CN201910860692.XA CN201910860692A CN110451172A CN 110451172 A CN110451172 A CN 110451172A CN 201910860692 A CN201910860692 A CN 201910860692A CN 110451172 A CN110451172 A CN 110451172A
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- 238000010894 electron beam technology Methods 0.000 title claims abstract description 26
- 238000012216 screening Methods 0.000 title claims abstract description 23
- 238000012546 transfer Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 15
- 230000004807 localization Effects 0.000 claims description 21
- 230000007246 mechanism Effects 0.000 claims description 19
- 230000033001 locomotion Effects 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 12
- 230000007423 decrease Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 230000001133 acceleration Effects 0.000 description 10
- 238000010276 construction Methods 0.000 description 8
- 230000005855 radiation Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- 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
- B65G13/00—Roller-ways
-
- 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
- B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
- B65G21/08—Protective roofs or arch supports therefor
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F3/00—Shielding characterised by its physical form, e.g. granules, or shape of the material
-
- 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
- B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
- B65G2207/40—Safety features of loads, equipment or persons
Abstract
A kind of electron beam irradiation screening arrangement based on rotation barricade, including the conveying assembly for transport sheet material, conveying assembly includes multiple spaced conveying rollers；The outside mask of conveying assembly is equipped with shielding case, and the transfer passage extended along the conveying direction of conveying assembly is equipped in shielding case, and transfer passage is respectively formed inlet port and outlet port at the both ends of shielding case；Transfer passage includes the feed zone, irradiated site and discharge zone being sequentially arranged along conveying direction, and irradiated site is equipped with electron accelerator；Feed zone and discharge zone are all provided with there are two shield assembly, shield assembly includes for separating the two of transfer passage shield doors and the barricade between two shield doors, shield door is equipped with the opening to match with plate, the rotation axis of barricade is connected with driver, driver is for driving barricade to rotate, and barricade rotation axis is located at barricade center and axially parallel with conveying roller.The present invention promotes the production efficiency of production line on the basis of guaranteeing shield effectiveness.
Description
Technical field
The present invention relates to electronic beam irradiation technology field, especially a kind of electron beam irradiation shielding based on rotation barricade
Device.
Background technique
In electron beam irradiation process, electron beam is beaten on being illuminated object or is beaten in vias inner walls, all can be in spoke
The x-ray being harmful to the human body is generated according to region, x-ray belongs to ionising radiation, visible light, ultraviolet light (UV) with Non-ionizing radiation
Difference, the interaction complexity of it and substance, has in rules such as interface reflection, transmissions.Can on quantity-produced production line,
How the x-ray that irradiated site generates to be shielded to level of security, is the primary safety problem of Design of Production Line.
The method that the prior art uses is: accelerator electron beam equipment being placed in the center of production line labyrinth channel, will be given birth to
The inlet and outlet of producing line are corresponding with the inlet and outlet of labyrinth channel respectively, by structures such as the turn of labyrinth channel itself, stackings come pole
The big amount of radiation for reducing the x-ray from production line inlet and outlet leakage.Such as application No. is CN201620539765.7 and
The bridge-type shielding structure and turn shielding construction that the Chinese patent literature of CN201620539853.7 is shown, all have excellent
Self-shading effect.It, also can be but because the presence of climb and fall and turn in labyrinth channel, can reduce the stability of production line
The speed of service for reducing production line to a certain extent, thereby results in the reduction of production efficiency.And at least need 7 times of workpiece long
The shielding construction of degree just can guarantee self-shading effect, need to expend a large amount of shielding material and place space.
Summary of the invention
The present invention provides a kind of electron beam irradiation screening arrangement based on rotation barricade, on the basis for guaranteeing shield effectiveness
On, promote the production efficiency of production line.
The embodiment of the present invention provides a kind of electron beam irradiation screening arrangement based on rotation barricade, including is used for plate conveyor
The conveying assembly of material, the conveying assembly include multiple spaced conveying rollers；The outside mask of the conveying assembly is equipped with screen
Cover is covered, the transfer passage extended along the conveying direction of the conveying assembly is equipped in the shielding case, the transfer passage is shielding
The both ends for covering cover are respectively formed inlet port and outlet port；The transfer passage includes the charging being sequentially arranged along the conveying direction
Area, irradiated site and discharge zone, the irradiated site are equipped with electron accelerator；The feed zone and discharge zone are all provided with there are two shielding group
Part, the shield assembly include for separating the two of the transfer passage shield doors and the screen between two shield doors
Shield plate, the shield door, which is equipped with, to match with plate and for the opening that plate passes through, the rotation axis and driving of the barricade
Device is connected, the driver for driving barricade to rotate, and the rotation axis of barricade be located at barricade center and with conveying
Roller is axially parallel；The rotation axis of the barricade is located at the side in above and below plate transport path, and barricade can turn
Move to one end the masked state of the another party being fully located in above and below transport path, barricade not with transport path
Half opened condition except the opening state and masked state and opening state of contact；Two pieces of barricades and discharging in feed zone
Two pieces of barricades are respectively provided with preset phase difference and remain that the preset phase is poor during rotation in area, when in feed zone
When one piece of barricade is in non-shielding state, another piece of barricade is in masked state, when one piece of barricade is in discharge zone
When non-shielding state, another piece of barricade is in masked state；The movement velocity of plate meets: when the front end of plate reaches shielding
When component, the barricade of the shield assembly is in the open state, before barricade enters half opened condition from opening state,
The rear end of plate passes through the barricade completely；Spacing between two neighboring barricade is greater than the length of plate.
Preferably, when the front end that the distance between front end of plate to barricade reaches preset distance and plate is located at shielding
When plate is close to feed inlet side, corresponding barricade, which is in, changes the critical localisation being in an open state by half opened condition.
Preferably, when in feed zone one piece of barricade be in and change into the critical localisation of non-shielding state by masked state
When, another piece of barricade has been in masked state, when one piece of barricade by masked state changes into non-shielding state in discharge zone
Critical localisation when, another piece of barricade has been in masked state.
Preferably, the plate front end is out of, previous barricade is moved to latter barricade time, previous barricade
Angle is rotated less than 180 °
Preferably, the preset phase difference is 90 degree.
Preferably, the turned position of the distance between adjacent two pieces of barricades, the length of plate and barricade meets: when
Plate pass completely through previous barricade and continue to move to will enter latter barricade when, adjacent two pieces of barricades persistently rotate
So that previous barricade is switched to masked state by opening state, latter barricade is switched to open shape by masked state
State.
Preferably, the rotation axis of two pieces of barricades in the feed zone is located above and below transport path,
The rotation axis of two pieces of barricades in the discharge zone is located above and below transport path.
Preferably, the outside of the feed inlet is equipped with accelerating region, and the accelerating region is docked with feed inlet, is equipped in accelerating region
Accelerate transport device；Shield assembly near feed inlet further includes barricade sensor, which is arranged most
Position when being in half opened condition or masked state close to the barricade of feed inlet；Barricade sensor and acceleration transport device
It is connected with controller, controller is configured to: when barricade sensor sensing to its position is there are when barricade, control
Device control accelerate transport device by plate to feed inlet transport, plate reach feed inlet when movement velocity and feed zone conveying roller
Travelling speed it is identical, and barricade from barricade sensor position turn to by half opened condition change be in an open state
Critical localisation needed for the time, be moved to the screen near feed inlet in the initial position of accelerating region from it with the front end of plate
Time needed for covering door is identical.
Preferably, the shield assembly in the feed zone near feed inlet further includes limit assembly, in feed zone near
Be equipped with through-hole on the shield door of nearly feed inlet side, the limit assembly include the push plate being arranged between two shield doors,
Across the through-hole connecting rod and be located most closely to feed inlet shield door side position-limit mechanism, the both ends of the connecting rod point
It is not connected with push plate and position-limit mechanism；Elastic component is equipped between the shield door and push plate near feed inlet；In the shielding
During plate turns to opening state by half opened condition, barricade pushes push plate mobile to feed inlet side, drives limit
Mechanism removes transport path, and during the barricade turns to half opened condition by opening state, resilient element urges are pushed away
Plate is mobile to discharge port side, and position-limit mechanism is driven to be moved to the transport path of plate.
Preferably, the rotation axis of the barricade is located at the lower section of transport path, and the position-limit mechanism includes and connecting rod phase
Sloping platform even, be fixed on shielding case inner wall in vertically arranged position-limiting drum and be arranged in position-limiting drum can relative limit cylinder move
Dynamic gag lever post；The upper surface of the sloping platform has along the inclined-plane that plate conveying direction height gradually decreases, the gag lever post
Lower end is placed on the inclined-plane.
Preferably, the size of all barricades and steering are all the same, and the rotation axis of all barricades is between transport path
Distance it is all the same.
The beneficial effects of the present invention are: when one piece of barricade is in non-shielding state in feed zone, another piece of barricade
In masked state, when one piece of barricade is in non-shielding state in discharge zone, another piece of barricade is in masked state, this
Sample, the channel at radiation area both ends both ends have at least that one piece of barricade is in masked state always, are always ensured that screen in any state
Effect is covered, the requirement of radiation self-shileding is met.Meanwhile barricade is in the motion state of continuous rotation, without start and stop and is not necessarily to
Overcome rotary inertia, therefore entire shielding construction can guarantee stability.Plate can average rate transmission without carry out acceleration and deceleration
It thus can be with continuous production than guaranteeing production efficiency.
Detailed description of the invention
Fig. 1 is the structural representation of the electron beam irradiation screening arrangement based on rotation barricade of an embodiment of the present invention
Figure；
Fig. 2 is the structural schematic diagram of the limit assembly of an embodiment of the present invention；
Fig. 3-5 is the working condition of the electron beam irradiation screening arrangement based on rotation barricade of an embodiment of the present invention
Evolution；
Fig. 6-8 is the work shape of the electron beam irradiation screening arrangement based on rotation barricade of another embodiment of the present invention
State evolution
Specific embodiment
Below by specific embodiment combination attached drawing, invention is further described in detail.
The embodiment of the present invention provides a kind of electron beam irradiation screening arrangement based on rotation barricade, as shown in Figure 1, it is wrapped
The conveying assembly 1 for transport sheet material 100 is included, conveying assembly 1 includes multiple spaced conveying rollers, and conveying roller itself turns
It is dynamic, so that plate 100 be driven to move forward.In general, plate 100 is the relatively regular plate structure of structure, length direction with
Conveying direction is parallel, and the spacing between two neighboring conveying roller is less than the length of plate 100.In order to promote the smooth of transmission process
Property, all conveying rollers can be in the same plane, so that straight line conveys plate 100.Plate 100 moves and shape on conveying roller
At trajectory path constitute transport path 101, all subsequent plates 100 will move along transport path 101.
It is equipped with relatively closed shielding case 2 in the outside mask of conveying assembly 1, entire conveying assembly 1 is located at by shielding case 2
It is interior, the transfer passage extended along the conveying direction of conveying assembly 1 is formed in shielding case 2, plate 100 is in transfer passage by defeated
Roller is sent to drive, transfer passage is respectively formed inlet port and outlet port at the both ends of shielding case 2, and plate 100 is entered from feed inlet
Transfer passage, and finally removed from discharge port.Transfer passage includes the feed zone 21 being sequentially arranged along conveying direction, irradiated site 22
With discharge zone 23, it is equipped with electron accelerator 200 in irradiated site 22, conveying assembly 1 drives plate 100 mobile to discharge port side,
Plate 100 is by the lower section of electron-beam accelerator 200, and electron accelerator 200 is since 100 end of plate, entirely to plate 100
Plate face carries out electron irradiation, completes the operation such as the solidification on 100 surface of plate.
Feed zone 21 and discharge zone 22 are all provided with there are two shield assembly 3, for convenience statement, can be along conveying direction (i.e.
Direction in Fig. 1 from left to right) by four shield assemblies be referred to as the first shield assembly, secondary shielding component, third shield
Component and the 4th shield assembly.Since conveying assembly 1 is made of multiple conveying rollers, shield assembly 3 may be provided at two neighboring defeated
It send between roller.Shield assembly 3 includes for separating the two of transfer passage shield doors 31 and being located between two shield doors 31
Barricade 32, state for convenience, can be along conveying direction (i.e. direction in Fig. 1 from left to right) by four shield assemblies
Barricade 32 is referred to as first barricade, second barricade, third barricade and the 4th barricade.The shielding
Door 31 is equipped with the opening passed through for plate 100, which matches with plate 100.The barricade 32 is set as can be opposite
The shield door 31 rotates, and the rotation axis of barricade 32 is connected with driver, and driver is for driving barricade to rotate.Driver
Specifically it can be motor, motor can be fixed on the lateral wall of shielding case 2, and the side wall of shielding case 2 is equipped with perforative through-hole, screen
The rotation axis of shield plate 32 is reached except shielding case 2 by the through-hole and is connected with the output shaft of motor, to drive barricade
32 rotations.The rotation axis of all barricades 32 passes through the center of barricade 32, and rotation axis is axial parallel with conveying roller, because
The both ends of this barricade 32 relatively rotate axis rotation.The rotation axis of barricade 32 can be located at transport path 101 top or under
Fang Bingyu transport path is spaced a predetermined distance, and when so that barricade 32 turning to a certain angle, barricade 32 does not influence plate
100, plate 100 can smoothly pass through.
Driver during driving barricade 32 to rotate, barricade 32 altogether there are three types of state, be respectively masked state,
Opening state and half opened condition, wherein opening state and half opened condition belong to non-shielding state.Under masked state,
Barricade 32 turns to another party that one end is fully located in above and below transport path 101, i.e., such as barricade 32
Rotation axis is located at the top of transport path 101, and one end of barricade 32 turns to its lower section for being fully located at transport path 101
When, it is masked state, correspondingly, one end of barricade 32 turns as the rotation axis of barricade 32 is located at the lower section of transport path 101
It moves when being fully located at the top of transport path 101 to it, is masked state.One end mentioned here is fully located at transport path
Above or below 101, refer to the end face at 32 end of barricade not in transport path 101, two sections of entire one end
Angle is respectively positioned on another party of transport path.Second barricade as shown in figure 1, lower end have passed completely through transport path 101, this
When, barricade 32 blocks transport path 101, plays the shielding action for preventing ray from projecting along transport path 101.To realize more
Good shield effectiveness, the one end that also can define barricade 32 is located at another party of transmission path 101 and the above are shieldings beyond 3mm
State.In the on-state, barricade 32 is not contacted with transport path 101, and barricade 32 can not play shielding action, and plate
100 can pass through the transport path 101 above or below barricade 32.In addition to above-mentioned two state, locating for barricade 32
Other states are half opened condition, and in this case, one end of barricade 32 is located in the range of transport path 101, such as Fig. 2 institute
Show, first barricade is in half opened condition at this time.The state of barricade 32 will be rotated with barricade 32 and be gradually changed
And have periodically, since barricade 32 has both ends, a cycle can have there are two half opened condition, change week
Phase is in an open state, half opened condition, masked state, half opened condition, eventually passes back to opening state.Due to 32 state of barricade
Change be all from a position instantaneous variation, therefore by barricade 32 be in just state change position be defined as critical potential
It sets.
Two pieces of barricades 32 have preset phase difference and remain the preset phase during rotation in feed zone 21
Difference, two pieces of barricades 32 equally have preset phase difference and remain the preset phase during rotation in discharge zone 23
Difference.This phase difference is configured to, when one piece of barricade 32 in feed zone 21 in two pieces of barricades 32 is in non-shielding state,
Another piece of barricade 32 is in masked state, when one piece of barricade 32 is in non-shielding state in discharge zone 23, another piece of screen
Shield plate 32 is in masked state.In this way, the space at 22 both ends of irradiated site has a barricade 32 to be in masked state always, then
The ray that radiation generates is difficult to project outward, plays shielding action.
The rotation speed of barricade 32 and the movement velocity of plate 100 meet: when the front end of plate 100 reaches shield assembly
When 3, i.e., when arrival shield assembly 3 is close to the opening of the shield door 31 of feed inlet side, the barricade 32 of the shield assembly 3 is in
Opening state for plate 100 by the shield assembly 3, and is kept open with being ready during passing through.Together
When, before barricade 32 enters half opened condition from opening state, the rear end of plate 100 then passes through the barricade completely
32.Plate 100 can be smooth by barricade 32 as a result, what needs to be explained here is that, the front end of plate 100 refers to along plate
The forward one end of 100 transmission directions, at first by electron accelerator irradiation, the rear end of plate 100 is transmitted along plate 100 at this end
The one end of direction rearward, this end is finally by electron accelerator irradiation.Due to having shielding always in the channel of 22 two sides of radiation area
Plate 32 is in masked state, ensure that shield effectiveness, meanwhile, the relative positional relationship of plate 100 and barricade 32 is carried out
It limits, plate 100 smooth can be moved without being limited by barricade 32.It is achieved that on the basis of guaranteeing shield effectiveness,
The purpose of improving production efficiency.In addition, due to using barricade and the knockdown shielding construction of shield door, rather than tradition is logical
It crosses length advantage and guarantees shield effectiveness, the length of the shielding construction of the present embodiment only needs long 4 times or so of plate, effectively reduces space
Occupy the dosage with shielding material.
In one embodiment, further plate 100 and the relative positional relationship of barricade 32 are defined, work as plate
When 100 front end reaches shield door 31 of the barricade 32 close to charging one end, corresponding barricade 32 is in by half opened condition
Change the critical localisation being in an open state.Due to the limited time in the open state of barricade 32, such setting is equivalent to
Opening state at the beginning, the front end of plate 100 just just begins to pass barricade 32, with guarantee have time enough for plate
Material 100 passes through.
Further, when in feed zone 21 one piece of barricade 32 be in the critical of half opened condition changed by masked state
When position, another piece of barricade 32 has been in masked state, correspondingly, one piece of barricade 32 is by masked state in the discharge zone 23
When changing into the critical localisation of non-shielding state, another piece of barricade 32 has been in masked state.In this way, in one piece of barricade 32
During state change, another piece of barricade 32 is in masked state in advance, prevents shielding cycle in time, has
Effect guarantees shield effectiveness.
In order to further ensure shield effectiveness, length to the distance between adjacent two pieces of barricades 32, plate 100 and
The turned position of barricade 32 further limits.When the rear end of plate 100 passes through previous barricade 32, previous barricade 32
In the critical localisation for entering half opened condition from opening state, and masked state is gradually being turned to later, and in this process
In, the front end of plate 10 is gradually close to latter barricade 32, since there are phases with latter barricade 32 for previous barricade 32
Difference, when previous barricade 32 does not enter masked state, latter barricade 32 is in masked state always, when previous barricade
32 when entering masked state, and latter barricade 32 is in the critical localisation that half opened condition is changed by masked state.Work as plate
When the front end of material 100 reaches shield door 31 of the barricade 32 close to charging one end, illustrate that plate 100 will reach latter shielding
Plate 32, corresponding barricade 32, which is in, changes the critical localisation being in an open state by half opened condition.In this way, plate 100
Continue to move across latter barricade 32.Wherein, previous barricade 32 refers in two neighboring barricade 32 close to feed inlet one
The barricade 32 of side, latter barricade 32 are then the barricades 32 in two neighboring barricade 32 close to discharge port side.
In above-described embodiment, 100 front end of plate is previous out of, previous barricade 32 is moved to latter barricade 32 time
The rotation angle of barricade 32 is less than 180 °.
In one embodiment, in order to realize that the phase difference of two neighboring barricade 32 remains unchanged, can shield at two
Locking phase mechanism is set in the rotation axis of shield plate 32.Specifically, one rotation axis in feed zone 21 in two barricades 32 with
Motor is connected, and the rotation axis is equipped with driving gear, and the rotation axis of another barricade 32 passes through built-up gear and driving tooth
Wheel engagement realizes that two barricades 32 are rotated synchronously by rotating between gear.Correspondingly, can also just be used in discharge zone 23
The mode of this gear engagement realizes synchronous rotation.When two barricades 32 rotate synchronously, phase difference can just keep solid
It is fixed.
Preset phase difference can be 90 degree, to guarantee in first swing circle as 0 ° -180 °, second swing circle
It is 180 ° -360 °, then the movement of adjacent two pieces of barricades 32 is consistent.Barricade 32 is made of lead material, and outside is coated with
Stainless steel, to increase structural strength.
In above-described embodiment, the rotation axis of two pieces of barricades 32 in feed zone 21 is located at the upper of transport path 101
The rotation axis of side and lower section, two pieces of barricades 32 in discharge zone 23 is located above and below transport path 101.Such as figure
Shown in 1, first barricade is located at the lower section of transport path 101, and second barricade is located at the top of transport path 101, the
Three barricades are located at the lower section of transport path 101, and the 4th barricade is located at the lower section of transport path 101, in this way, forming one
The shielding construction of kind dislocation, makes the ray of reflection more be difficult to reveal from shielding construction, enhances shield effectiveness.
In one embodiment, it is equipped with accelerating region in the outside of feed inlet, accelerating region is docked with feed inlet, set in accelerating region
There is acceleration transport device, transport device is accelerated to can be acceleration roller, acceleration roller is rubber covered roll, has biggish frictional force.Accelerate
Roller is connected with corresponding driver, and driver, which drives, accelerates roller rotation.In the initial state, plate 100 can be placed in acceleration roller
On, and roller is accelerated to can be at off working state.Certainly, in other embodiments, transport device is accelerated to can also be conveyer belt etc.
Other conveying mechanisms.
Shield assembly near feed inlet further includes barricade sensor, the barricade sensor setting near into
The barricade 32 of material mouth is in position when half opened condition or masked state；Barricade sensor and accelerate transport device with
Controller is connected, and controller is configured to: when barricade sensor sensing to its position is there are when barricade 32, controller
Control accelerates transport device to transport plate 100 to feed inlet, and the movement velocity and feed zone when plate reaches feed inlet convey
The travelling speed of roller is identical；Accelerate transport device can be the working method first accelerated again at the uniform velocity, first by plate 100 accelerate to
The travelling speed of feed zone conveying roller is identical, then plate 100 is made to keep speed identical with the travelling speed of feed zone conveying roller
At the uniform velocity advance, ensures that plate 100 at the uniform velocity enters feed inlet.
Meanwhile meeting condition α/w=s/v, wherein α near the barricade 32 of feed inlet from barricade sensor institute
The rotational angle for changing the critical localisation being in an open state by half opened condition is turned in position, w is the rotation of barricade 32
Angular speed, s are the front end of plate 100 from the initial position in accelerating region to the distance near the shield door of feed inlet, v
Average speed of shield door near feed inlet is moved to from it in the initial position of accelerating region for the front end of plate 100.By
This, barricade 32 is turned to from barricade sensor position changes the critical localisation institute being in an open state by half opened condition
The time needed, with the front end of plate 100 from it needed for the initial position of accelerating region is moved to the shield door near feed inlet
Time it is identical, guarantee plate 100 from feed inlet entrance after, when that will approach near the barricade 32 of feed inlet, the screen
Shield plate 32 is in the open state, allows plate 100 is smooth to pass through.
Those skilled in the art can pass through the parameters such as reasonable disposition above-mentioned α, w, s and v, Ji Kebao according to the prior art
Demonstrate,proving two times matches, and this will not be repeated here.
Further, feed zone is additionally provided on the outside of accelerating region, feed zone, accelerating region and feed inlet are suitable along conveying direction
Secondary setting.Accelerating region is docked with feed zone, in feed zone be equipped with feed device, the plate 100 of accelerating region transport feed inlet it
Afterwards, accelerate transport device that can stop working, feed device is waited to convey next block of plate 100 to accelerating region, complete a cycle
Movement.
In one embodiment, as shown in Figure 1, near (i.e. first screen of the shield assembly of feed inlet 3 in feed zone 21
Cover component) it further include limit assembly 4.As shown in Fig. 2, providing a kind of embodiment of limit assembly 4, feed zone 21 and discharge zone 23
In be equipped with through-hole on the shield door 31 of feed inlet side, limit assembly 4 includes being arranged between two shield doors 31
Push plate 41, across the through-hole connecting rod 42 and be located most closely to feed inlet 31 side of shield door position-limit mechanism, institute
The both ends for stating connecting rod 42 are connected with push plate 41 and position-limit mechanism respectively, and connecting rod 42 can move in through-hole.Near into
Elastic component 46 is equipped between the shield door 31 and push plate 41 of material mouth, elastic component 46 provides elastic force, can be by push plate 41 to discharging
Mouth side pushes.When the barricade 32 close to the push plate 41 turns to opening state by half opened condition, barricade 32 is close
One end of feed inlet moves closer to push plate 41, to push push plate 41 mobile to feed inlet side, and then position-limit mechanism is driven to move
The transport path 101 of plate 100 out, making position-limit mechanism not influences the movement of plate 100, releases the limitation to plate 100.Work as screen
During shield plate 32 turns to closed state by opening state, barricade 32 is relatively distant from push plate close to one end of feed inlet
41, elastic component 46 pushes push plate 41 mobile to discharge port side, and then position-limit mechanism is driven to be moved in transport path 101, right
Plate 100 is limited, and cannot be introduced into it in opening of shield door 31.Shielding will be passed through by 4 pairs of limit assembly as a result,
The plate 100 of component 3 is limited, and prevents plate 100 from colliding the barricade 32 being in close state.In order to guarantee shielding effect
Fruit, connecting rod 42 can be made of shielding material.
Specifically, the rotation axis of the barricade 32 is located at the lower section of transport path 101, the position-limit mechanism includes and connects
The connected sloping platform 43 of bar 42 is fixed on 2 inner wall of shielding case in vertically arranged position-limiting drum 45 and is arranged in position-limiting drum 45
It can the mobile gag lever post 44 of relative limit cylinder 45.The upper surface of the sloping platform 43 has along 100 conveying direction height of plate gradually
The lower end on reduced inclined-plane, the gag lever post 44 is placed on the inclined-plane, and the lower end of best gag lever post 44 is also configured as corresponding to
Inclined-plane.When push plate 41 is mobile to feed inlet side, sloping platform 43 is corresponding mobile to feed inlet side, and gag lever post 44 is naturally downward
It is mobile, to remove transport path 101.When push plate 41 is mobile to discharge port side, sloping platform 43 is corresponding to one sidesway of discharge port
Dynamic, gag lever post 44 gradually moves up, to be moved to transport path 101.The length of position-limiting drum 45 can be set it is relatively longer,
The position-limiting action to gag lever post 44 is played, 44 transverse shifting of gag lever post is prevented.And above-mentioned elastic component 46 can be spring, spring
It can be socketed on connecting rod 42.Limit assembly 4 can also be designed as being controlled by control circuit by designer, pass through sensing
Device perception barricade 32 is opened limit assembly in the open state and is passed freely through by plate 100, and perception barricade 32 is in non-
It is closed when opening state, prevents from causing snap-gauge into plate at this time.
In one embodiment, the size and used lead equivalent of above-mentioned all shield doors 31 and barricade 32 are homogeneous
Together, guarantee balanced shield effectiveness.And the steering of barricade 32 is all the same, the rotation axis of all barricades 32 to transport path
The distance between 101 is all the same, convenient for unified configuration.
Fig. 3-Fig. 5 illustrates the working condition evolution of the screening arrangement of above-described embodiment at work, to put it more simply, figure
In only illustrate state change in feed zone 21.Wherein, the rotation axis of first barricade is located under transport path 101
Side, the rotation axis of second barricade are located at the top of transport path 101.
In Fig. 3, plate 100 is being fed, and the front end of plate 100 reaches first shield assembly position, at this point,
First barricade is in the open state, and plate 100 can be in half-dozen by first barricade, second barricade later
Open state will go into masked state to the critical localisation of masked state later.
As shown in figure 4, first barricade continues to rotate counterclockwise, full open position is turned to, plate 100 continues
Pass through first shield assembly；Second barricade is still within masked state.
As shown in figure 5, second barricade rotating opening state, first barricade are then in masked state, plate 100
Continue through second shield assembly.
It follows that thering is barricade 32 to be in masked state always in the moving process of plate 100, guarantee shielding effect
Fruit.
The embodiment of the present invention also provides a kind of electron beam irradiation screening arrangement based on rotation barricade, as shown in fig. 6, its
Structure is similar to the structure of electron beam irradiation screening arrangement of above-described embodiment, and difference is, feed zone 21 and discharge zone 23 are equal
If the barricade 32 in shield assembly is single armed rotation there are three shield assembly, i.e. rotation axis one end for being located at barricade 32,
The other end of barricade 32 rotates.
Wherein, the size of three pieces of barricades 32 is completely the same, and the rotation axis of three pieces of barricades 32 is to transport path 101
Distance is also consistent, certain phase difference is mutually between adjacent two pieces of barricades 32, and during barricade 32 rotates always
Keep the phase difference., so that at least one piece of barricade 32 is in masked state under any state.In figure, all barricades
32 rotate counterclockwise, and since second barricade 32 is located at the other side of conveying circuit, two neighboring barricade 32 has 300 degree
Phase difference, i.e. leading second barricade of first barricade totally 300 degree of phase.If three barricades 32 are located at pipeline
The same side on road, then the phase difference of two neighboring barricade 32 is 240 degree.In order to guarantee shield effectiveness, in three pieces of barricades 32
In, when one piece of barricade 32 changes into non-shielding state by masked state, at least one piece of barricade 32 has been shielding shape
State.To realize better shield effectiveness, the one end that also can define barricade 32 is located at another party of transmission path 101 and exceeds
The above are masked states by 3mm.
The rotation speed of barricade 32 and the movement velocity of plate 100 meet: when the front end of plate 100 reaches shield assembly
When 3, i.e., when arrival shield assembly 3 is close to the opening of the shield door 31 of feed inlet side, the barricade 32 of the shield assembly 3 is in
Opening state for plate 100 by the shield assembly 3, and is kept open with being ready during passing through.Together
When, before barricade 32 enters half opened condition from opening state, the rear end of plate 100 should then pass through the shielding completely
Plate 32.Plate 100 can be smooth by each barricade 32 as a result, and the rotation for preventing barricade 32 influences the shifting of plate 100
It is dynamic.Due to thering is barricade 32 to be in masked state always in the channel of 22 two sides of radiation area, shield effectiveness ensure that, meanwhile,
Plate 100 and the relative positional relationship of barricade 32 are defined, plate 100 smooth can be moved without by plate 32
Limitation.It is achieved that on the basis of guaranteeing shield effectiveness, the purpose of improving production efficiency.
In one embodiment, further plate 100 and the relative positional relationship of barricade 32 are defined, work as plate
When 100 front end reaches shield door 31 of the barricade 32 close to charging one end, illustrate that plate 100 will reach barricade 32,
Corresponding barricade 32, which is in, changes the critical localisation being in an open state by half opened condition.Since barricade 32 is in open shape
The limited time of state, such setting be equivalent to opening state at the beginning, the front end of plate 100 just passes right through barricade
32, to guarantee to there is time enough to pass through for plate 100.
In above-described embodiment, the adjacent two piece barricade 32 in feed zone 21 and discharge zone 23 is located at transport path
Above and below in the of 101.As shown in Figure 6, first barricade is located at the lower section of transport path 101, and second barricade is located at
The top of transport path 101, third barricade are located at the lower section of transport path 101, in this way, forming a kind of shielding knot of dislocation
Structure makes the ray of reflection more be difficult to reveal from shielding construction, enhances shield effectiveness.
In one embodiment, it is equipped with accelerating region in the outside of feed inlet, accelerating region is docked with feed inlet, set in accelerating region
There is acceleration transport device, transport device is accelerated to can be acceleration roller, acceleration roller is rubber covered roll, has biggish frictional force.Accelerate
Roller is connected with corresponding driver, and driver, which drives, accelerates roller rotation.In the initial state, plate 100 can be placed in acceleration roller
On, and roller is accelerated to can be at off working state.Certainly, in other embodiments, transport device is accelerated to can also be conveyer belt etc.
Other conveying mechanisms.
Shield assembly near feed inlet further includes barricade sensor, the barricade sensor setting near into
The barricade 32 of material mouth is in position when half opened condition or masked state；Barricade sensor and accelerate transport device with
Controller is connected, and controller is configured to: when barricade sensor sensing to its position is there are when barricade 32, controller
Control accelerates transport device to transport plate 100 to feed inlet, and the movement velocity and feed zone when plate reaches feed inlet convey
The travelling speed of roller is identical；Accelerate transport device can be the working method first accelerated again at the uniform velocity, first by plate 100 accelerate to
The travelling speed of feed zone conveying roller is identical, then plate 100 is made to keep speed identical with the travelling speed of feed zone conveying roller
At the uniform velocity advance, ensures that plate 100 at the uniform velocity enters feed inlet.
Meanwhile meeting condition α/w=s/v, wherein α near the barricade 32 of feed inlet from barricade sensor institute
The rotational angle for changing the critical localisation being in an open state by half opened condition is turned in position, w is the rotation of barricade 32
Angular speed, s are the front end of plate 100 from the initial position in accelerating region to the distance near the shield door of feed inlet, v
Average speed of shield door near feed inlet is moved to from it in the initial position of accelerating region for the front end of plate 100.By
This, barricade 32 is turned to from barricade sensor position changes the critical localisation institute being in an open state by half opened condition
The time needed, with the front end of plate 100 from it needed for the initial position of accelerating region is moved to the shield door near feed inlet
Time it is identical, guarantee plate 100 from feed inlet entrance after, when that will approach near the barricade 32 of feed inlet, the screen
Shield plate 32 is in the open state, allows plate 100 is smooth to pass through.
Those skilled in the art can pass through the parameters such as reasonable disposition above-mentioned α, w, s and v, Ji Kebao according to the prior art
Demonstrate,proving two times matches, and this will not be repeated here.
Further, feed zone is additionally provided on the outside of accelerating region, feed zone, accelerating region and feed inlet are suitable along conveying direction
Secondary setting.Accelerating region is docked with feed zone, in feed zone be equipped with feed device, the plate 100 of accelerating region transport feed inlet it
Afterwards, accelerate transport device that can stop working, feed device is waited to convey next block of plate 100 to accelerating region, complete a cycle
Movement.
Fig. 6-Fig. 8 illustrates the working condition evolution of the screening arrangement of above-described embodiment at work, to put it more simply, figure
In only illustrate state change in feed zone 21.Wherein, the rotation axis of first barricade is located under transport path 101
Side, the rotation axis of second barricade are located at the top of transport path 101, and the rotation axis of third barricade is located at transport path
101 lower section.
In Fig. 6, close to first barricade, first barricade is in from half opened condition to be changed plate 100
The critical localisation being in an open state, second barricade are in masked state, and third barricade is in the open state.
In Fig. 7, plate 100 is passing through first barricade, and will arrive at second barricade, at this point, first
A barricade is still within opening state, and second barricade is critical just at being in an open state from half opened condition change
Position, third barricade are in masked state.
In Fig. 8, plate 100 has passed through first barricade, is passing through second barricade, and will arrive at third
A barricade, at this point, first barricade is in masked state, second barricade is in the open state, third shielding
Plate is just at the critical localisation being in an open state from half opened condition change.
The above content is specific embodiment is combined, further detailed description of the invention, and it cannot be said that this hair
Bright specific implementation is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, it is not taking off
Under the premise of from present inventive concept, a number of simple deductions or replacements can also be made.
Claims (10)
1. a kind of electron beam irradiation screening arrangement based on rotation barricade, it is characterised in that:
Including the conveying assembly for transport sheet material, the conveying assembly includes multiple spaced conveying rollers；The conveying
The outside mask of component is equipped with shielding case, and it is logical that the conveying extended along the conveying direction of the conveying assembly is equipped in the shielding case
Road, the transfer passage are respectively formed inlet port and outlet port at the both ends of shielding case；The transfer passage includes along described defeated
Feed zone, irradiated site and the discharge zone for sending direction to be sequentially arranged, the irradiated site are equipped with electron accelerator；The feed zone and go out
Material area is all provided with there are two shield assembly, and the shield assembly includes for separating the two of the transfer passage shield doors and positions
Barricade between two shield doors, the shield door, which is equipped with, to match with plate and for the opening that plate passes through, described
The rotation axis of barricade is connected with driver, and the driver is for driving barricade to rotate, and the rotation axis of barricade is located at
The center of barricade is simultaneously axially parallel with conveying roller；The rotation axis of the barricade is located above and below plate transport path
In a side, barricade can turn to the shielding shape for another party that one end is fully located in above and below transport path
Half opened condition except opening state and masked state and opening state that state, barricade are not contacted with transport path；Into
Two pieces of barricades are respectively provided with preset phase difference and remain during rotation in two pieces of barricades and discharge zone in material area
The preset phase is poor, and when one piece of barricade is in non-shielding state in feed zone, another piece of barricade is in masked state, when
When one piece of barricade is in non-shielding state in discharge zone, another piece of barricade is in masked state；The movement velocity of plate is full
Foot: when the front end of plate reaches shield assembly, the barricade of the shield assembly is in the open state, in barricade from open shape
State enters before half opened condition, and the rear end of plate passes through the barricade completely；Spacing between two neighboring barricade is big
In the length of plate.
2. the electron beam irradiation screening arrangement according to claim 1 based on rotation barricade, it is characterised in that:
When the front end of plate reaches shield door of the barricade close to charging one end, corresponding barricade is in by half opened condition
Change the critical localisation being in an open state.
3. the electron beam irradiation screening arrangement according to claim 1 based on rotation barricade, it is characterised in that:
When one piece of barricade is in the critical localisation for changing into non-shielding state by masked state in feed zone, another piece of shielding
Plate has been in masked state, when one piece of barricade is changed by masked state the critical localisation of non-shielding state in discharge zone,
Another piece of barricade has been in masked state.
4. the electron beam irradiation screening arrangement according to claim 1 based on rotation barricade, it is characterised in that:
Out of, previous barricade is moved to latter barricade time, the rotation angle of previous barricade is less than for the plate front end
180°。
5. the electron beam irradiation screening arrangement according to claim 1 based on rotation barricade, it is characterised in that:
The preset phase difference is 90 degree.
6. the electron beam irradiation screening arrangement according to claim 1 based on rotation barricade, it is characterised in that:
The turned position of the distance between adjacent two pieces of barricades, the length of plate and barricade meets: when plate is worn completely
Cross previous barricade and continue to move to will enter latter barricade when, adjacent two pieces of barricades persistently rotate so that previous screen
Shield plate is switched to masked state by opening state, and latter barricade is switched to opening state by masked state.
7. the electron beam irradiation screening arrangement according to claim 1 based on rotation barricade, it is characterised in that:
The outside of the feed inlet is equipped with accelerating region, and the accelerating region is docked with feed inlet, is equipped in accelerating region and accelerates transport dress
It sets；Shield assembly near feed inlet further includes barricade sensor, which is arranged near feed inlet
Position of barricade when being in half opened condition or masked state；Barricade sensor and accelerate transport device and controller
Be connected, controller is configured to: when barricade sensor sensing to its position is there are when barricade, controller control accelerates
Transport device by plate to feed inlet transport, plate reach feed inlet when movement velocity and feed zone conveying roller travelling speed
It is identical, and barricade turns to from barricade sensor position and changes the critical localisation being in an open state by half opened condition
The required time, with the front end of plate from it needed for the initial position of accelerating region is moved to the shield door near feed inlet
Time is identical.
8. the electron beam irradiation screening arrangement according to claim 1-7 based on rotation barricade, feature exist
In:
Shield assembly in the feed zone near feed inlet further includes limit assembly, near feed inlet side in feed zone
Shield door on be equipped with through-hole, the limit assembly includes the push plate being arranged between two shield doors, passes through the through-hole
Connecting rod and be located most closely to feed inlet shield door side position-limit mechanism, the both ends of the connecting rod respectively with push plate and limit
Position mechanism is connected；Elastic component is equipped between the shield door and push plate near feed inlet；In the barricade by semi-open shape
During state turns to opening state, barricade pushes push plate mobile to feed inlet side, and position-limit mechanism is driven to remove conveying
Path, during the barricade turns to half opened condition by opening state, resilient element urges push plate is to discharge port one
Side is mobile, and position-limit mechanism is driven to be moved to the transport path of plate.
9. the electron beam irradiation screening arrangement according to claim 8 based on rotation barricade, it is characterised in that:
The rotation axis of the barricade is located at the lower section of transport path, and the position-limit mechanism includes the sloping platform being connected with connecting rod, consolidates
It is scheduled on shielding case inner wall in vertically arranged position-limiting drum and be arranged in position-limiting drum can the mobile gag lever post of relative limit cylinder；
The upper surface of the sloping platform has along the inclined-plane that plate conveying direction height gradually decreases, and the lower end of the gag lever post is placed on institute
It states on inclined-plane.
10. the electron beam irradiation screening arrangement according to claim 1-7 based on rotation barricade, feature exist
In:
The sizes of all barricades, velocity of rotation and turn to all the same, the rotation axis of all barricades is between transport path
Apart from all the same.
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| CN112891576A (en) * | 2021-04-02 | 2021-06-04 | 楚天科技股份有限公司 | Electron beam sterilization equipment and method |
| CN113473824A (en) * | 2020-03-31 | 2021-10-01 | 同方威视技术股份有限公司 | Radiation shield for security inspection equipment |
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Address after: 528400 zone a, floor 5, building 3, No. 6, jiusha Road, Torch Development Zone, Zhongshan City, Guangdong Province Applicant after: Zhongshan yibigu electron beam technology Co.,Ltd. Address before: 528400 zone a, floor 5, building 3, No. 6, jiusha Road, Torch Development Zone, Zhongshan City, Guangdong Province Applicant before: ZHONGSHAN YIBIGU NEW MATERIAL TECHNOLOGY CO.,LTD. |