Disclosure of Invention
In view of the above technical deficiencies, the present invention provides an image processing and screening apparatus, which can overcome the above disadvantages.
The invention relates to an image processing screening device, which comprises a box body, a marking device, a conveying device, a first screening device, a second screening device, a probe device and a reversing device, wherein the marking device, the conveying device, the first screening device, the second screening device, the probe device and the reversing device are arranged in the box body, the conveying device consists of a first conveying device, a second conveying device and a third conveying device, the first conveying device comprises a first screening cavity arranged in the box body, a feed inlet communicated with the outside is formed in the end wall of the left side of the first screening cavity, a first rotating roller and a second rotating roller are arranged between the end wall of the front side of the first screening cavity and the end wall of the rear side of the first screening cavity in a rotating matching manner, the first rotating roller is positioned on the left side of the second rotating roller, a first conveying belt is arranged between the first rotating roller and the second rotating roller in a driving matching manner, a first chain wheel is fixedly arranged on the section of the rear side of the first rotating roller, the tail end of the rear side of the first driving shaft is connected with a first motor in a power fit mode, and the first motor is fixedly arranged on the end face of the rear side of the box body; the second conveyer is including locating first screening chamber downside second screening chamber, the second screening chamber is equipped with the discharge gate that is linked together with the external world on the left side terminal surface, normal running fit is equipped with third live-rollers and fourth live-rollers between the front side terminal surface in second screening chamber and the rear end terminal surface, the third live-rollers is located fourth live-rollers left side, the third live-rollers with the transmission cooperation is equipped with the second conveyer belt between the fourth live-rollers, third live-rollers rear side section has set firmly the second sprocket, first sprocket with transmission cooperation is equipped with first chain between the second sprocket.
Preferably, third conveyer including set up with the first waste material chamber on first screening chamber right side, be equipped with on the end wall of first waste material chamber right side with the first waste material mouth that first screening chamber is linked together, the symmetry is equipped with on the front side end wall in first screening chamber and the rear side end wall and extends to right the transmission groove in first waste material chamber, the transmission inslot has set firmly the turning block, normal running fit is equipped with a plurality of fifth live rollers between the turning block.
Preferably, the marking device comprises a marking sliding device and a marking clamping device, the marking sliding device comprises a first marking groove and a second marking groove which are symmetrically arranged on the front side end wall and the rear side end wall of the first screening cavity and extend in the vertical direction, the first marking groove is positioned on the left side of the second marking groove, a first marking block is in up-down sliding fit in the first marking groove, a second marking block is in up-down sliding fit in the second marking groove, a third marking groove is arranged on the right side end face of the first marking block, one side end wall, close to each other, of the third marking groove is communicated with the first screening cavity, a fourth marking groove is arranged on the left side end face of the second marking block, one side end wall, close to each other, of the fourth marking groove is communicated with the first screening cavity, a first marking tension spring is fixedly arranged between the bottom end face of the first marking block and the bottom end wall of the first marking groove, and a second marking tension spring is fixedly arranged between the bottom end face of the second marking block and the bottom end wall of the second marking groove.
Preferably, the mark clamping device comprises a first mark plate fixedly arranged between a third mark groove and a fourth mark groove, a fifth mark groove extending downwards is annularly arranged on the top end surface of the first mark plate, one side, away from each end wall of the first screening cavity, of the fifth mark groove is communicated with one another, a second mark plate with a bottom section inclined towards the through side of the fifth mark groove is arranged in the fifth mark groove in a sliding fit manner, a third mark plate extending towards the through side of the fifth mark groove is fixedly arranged on the bottom end surface of the second mark plate, an upward extending clamping plate is fixedly arranged on the upper end surface of the third mark plate, first elastic rubber is fixedly arranged between the clamping plates, a fourth mark plate is fixedly arranged on the upper end surface of the second mark plate, and the bottom end surface of the fourth mark plate is in sliding fit with the top end surface of the first mark plate, the second marking plate is provided with a clamping shaft sleeve in a threaded connection and matching mode on the end face of one side, close to the end wall on the periphery of the first screening cavity, a first through groove is formed in the end face of the rear side of the first screening cavity and located on the rear side of the clamping shaft sleeve, a first electrifying magnet is fixedly arranged on the end face of the upper side of the first marking plate, a second electrifying magnet is fixedly arranged on the end wall of the upper side of the first screening cavity and located below the second electrifying magnet, and the same marking device is also arranged in the second screening cavity and located on the lower side of the marking device.
Preferably, the first screening device comprises a screening box device and a screening moving device; the screening moving device comprises a first screening groove and a second screening groove which are symmetrically arranged on the front side end wall and the rear side end wall of the first screening cavity, the first screening groove is positioned on the left side of the second screening groove, a first screening block is arranged in the first screening groove in an up-down sliding fit manner, a second screening block is arranged in the second screening groove in an up-down sliding fit manner, a seventh rotating roller is arranged between the first screening blocks in a rotating fit manner, an eighth rotating roller is arranged between the second screening blocks in a rotating fit manner, a third screening groove extending up and down is arranged on the rear end face of the box body, a fourth screening groove is arranged between the third screening groove and the first screening groove, a second motor is arranged in the third screening groove in an up-down sliding fit manner, a second driving shaft is connected between the second motor and the rear end face of the seventh rotating roller in a power fit manner, and a fourth conveyor belt is arranged between the seventh rotating roller and the eighth rotating roller in a transmission fit manner, the upper side end face of the first screening block is fixedly provided with a first screening shaft extending upwards, and the upper side end face of the second screening block is fixedly provided with a second screening shaft extending upwards.
Preferably, the screening case device including set firmly in the screening case of box top end face, the screening incasement is equipped with the screening chamber, sliding fit is equipped with the screening board about the screening intracavity, the top end face of screening board with the symmetry has set firmly screening thrust spring between the top end wall in screening chamber, the top end face of screening board has set firmly the third three-way electromagnet, the top end wall in screening chamber has set firmly the fourth four-way electromagnet, first screening axle with second screening axial is last to extend to the screening board and rather than fixed connection, the sieving mechanism is located first conveyer right side.
Preferably, the reversing device is including locating on the first screening chamber bottom end face and with the reversal groove that the second screening chamber is linked together, the reversal groove is located the sieving mechanism right side, be equipped with on the right side end wall in second screening chamber through the reversal groove gets into the reversal piece in first screening chamber, the left side terminal surface of reversal piece is gone up and down the symmetry and is equipped with first reversal groove, is located the upside first reversal groove is located fourth conveyer belt right side, be equipped with the second reversal groove between the first reversal groove, the second reversal groove with first reversal groove communicates mutually, second reversal groove left side end firmly is equipped with the limiting plate, second reversal inslot left and right sliding fit is equipped with the push pedal, push pedal left side terminal surface is equipped with the fifth-pass electro-magnet, the sixth-magnet has set firmly between the right side terminal surface of limiting plate, the left side terminal surface of fifth-pass electro-magnet with reverse thrust has set firmly between the right side terminal surface of sixth-pass electro-magnet The spring, the right side terminal surface of reversal piece sets firmly the third power axle that extends right, the third power axle extends to first waste material intracavity and right side terminal surface power fit are connected with the third motor, the third motor set firmly in the left side terminal surface in first waste material chamber.
Preferably, the second screening device comprises a second waste material cavity arranged on the lower side of the second screening cavity, a first distributing groove communicated with the second waste material cavity is arranged on the end face of the bottom of the second screening cavity, the left side section of the first distributing groove is communicated with the discharge hole, a first distributing shaft is arranged between the front side end wall and the rear side end wall of the first distributing groove in a rotating fit manner, a right-inclined distributing plate is fixedly arranged on the first distributing shaft, second distributing grooves which extend downwards and pass through the first distributing groove are symmetrically arranged on the front side end wall and the rear side end wall of the second screening cavity, a distributing block is arranged in the second distributing groove in a vertically sliding fit manner, a distributing tension spring is fixedly arranged between the end face of the top of the distributing block and the end wall of the top of the second distributing groove, a distributing through groove is arranged on the end face of the left side of the distributing block, and the end face of the distributing through groove far away from the side of the second distributing groove is communicated with, the material distributing plate extends rightwards to pass through the material distributing penetrating groove, a seventh electrified magnet is fixedly arranged on the end face of the bottom of the material distributing block, and an eighth electrified magnet is fixedly arranged on the end wall of the bottom of the second material distributing groove.
Preferably, the probe device comprises a first image probe fixedly arranged on the top end face of the first screening cavity, the first image probe is positioned on the left side of the marking device, a second image probe is fixedly arranged on the top end face of the second screening cavity, and the second image probe is positioned between the reversing device and the marking device.
In conclusion, the device adopts the graphic image processing technology to specifically distinguish whether the appearance of the product is scratched or not and whether the overall dimension of the product is qualified or not, the device can realize the detection and screening of the front side and the back side of the product, adopts a mechanical mechanism, is safe and reliable in structural form, can reduce unnecessary loss for enterprises as far as possible, and particularly can further guarantee the product quality by reducing unnecessary operation in the inspection of semi-finished products.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
The invention will now be described in detail with reference to fig. 1-7, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
As shown in fig. 1-7, an image processing screening apparatus of the present invention includes a box 10, and a marking device, a conveying device, a first screening device, a second screening device, and a reversing device disposed in the box 10; the conveying device consists of a first conveying device, a second conveying device and a third conveying device, the first conveying device comprises a first screening cavity 11 arranged in the box body 10, a feed inlet 12 communicated with the outside is arranged on the left end wall of the first screening cavity 11, a first rotating roller 13 and a second rotating roller 14 are arranged between the front end wall and the rear end wall of the first screening cavity 11 in a rotating matching way, the first rotating roller 13 is positioned at the left side of the second rotating roller 14, a first conveyor belt 15 is arranged between the first rotating roller 13 and the second rotating roller 14 in a transmission fit manner, a first chain wheel 16 is fixedly arranged on the rear side section of the first rotating roller 13, a first driving shaft 17 extending backwards is fixedly arranged at the rear side tail end of the first rotating roller 13, the rear end of the first driving shaft 17 is connected with a first motor 18 in a power fit manner, and the first motor 18 is fixedly arranged on the rear end face of the box body 10; the second conveying device comprises a second screening cavity 19 arranged on the lower side of the first screening cavity 11, a discharge hole 20 communicated with the outside is formed in the left side end face of the second screening cavity 19, a third rotating roller 21 and a fourth rotating roller 22 are arranged between the front side end face and the rear side end face of the second screening cavity 19 in a rotating fit mode, the third rotating roller 21 is located on the left side of the fourth rotating roller 22, a second conveying belt 23 is arranged between the third rotating roller 20 and the fourth rotating roller 21 in a transmission fit mode, a second chain wheel 24 is fixedly arranged on the rear side section of the third rotating roller 21, and a first chain 25 is arranged between the first chain wheel 16 and the second chain wheel 24 in a transmission fit mode; third conveyer including set up with first waste material chamber 26 on first screening chamber 11 right side, be equipped with on the end wall of first waste material chamber 26 right side with first waste material mouth 27 that first screening chamber 11 is linked together, the symmetry is equipped with on the front side end wall of first screening chamber 11 and the rear side end wall and extends to right the transmission groove 73 of first waste material chamber 26, the transmission groove internal stability has set firmly turning block 91, normal running fit is equipped with a plurality of fifth live-rollers 28 between turning block 91.
Beneficially, the marking device includes a marking sliding device and a marking clamping device, the marking sliding device includes a first marking groove 31 and a second marking groove 32 which are symmetrically arranged on the front side end wall and the rear side end wall of the first sieving cavity 11 and extend in the up-down direction, the first marking groove 31 is located on the left side of the second marking groove 32, a first marking block 33 is slidably fitted in the first marking groove 31 up and down, a second marking block 34 is slidably fitted in the second marking groove 34 up and down, a third marking groove 35 is arranged on the right side end surface of the first marking block 33, a side end wall, close to each other, of the third marking groove 35 is communicated with the first sieving cavity 11, a fourth marking groove 36 is arranged on the left side end surface of the second marking block 34, a side end wall, close to each other, of the fourth marking groove 36 is communicated with the first sieving cavity 11, and a first marking pull is fixedly arranged between the bottom end surface of the first marking block 33 and the bottom end wall of the first marking groove 31 And a second marking tension spring 38 is fixedly arranged between the bottom end surface of the second marking block 34 and the bottom end wall of the second marking groove 32.
Advantageously, the mark clamping device comprises a first mark plate 39 fixedly arranged between the third mark groove 35 and the fourth mark groove 36, a fifth mark groove 40 extending downwards is annularly arranged on the top end surface of the first mark plate 39, one side of the fifth mark groove 40 far from each end wall of the first screening chamber 11 is communicated with each other, a second mark plate 41 with a bottom section inclined towards the through side of the fifth mark groove 40 is arranged in a sliding fit manner in the fifth mark groove 40, a third mark plate 42 extending towards the through side of the fifth mark groove 40 is fixedly arranged on the bottom end surface of the second mark plate 41, a clamping plate 43 extending upwards is fixedly arranged on the upper end surface of the third mark plate, a first elastic rubber 44 is fixedly arranged between the clamping plates 43, a fourth mark plate 45 is fixedly arranged on the upper end surface of the second mark plate 41, the bottom end surface of the fourth mark plate 45 is in a sliding fit with the top end surface of the first mark plate 39, the second marking plate 41 is provided with a clamping shaft sleeve 46 in a threaded connection and matching mode on the end face of one side of the peripheral end wall of the first screening cavity 11, a first through groove 47 is formed in the end face of the rear side of the first screening cavity 11, the first through groove 47 is located on the rear side of the clamping shaft sleeve 46, a first electrifying magnet 61 is fixedly arranged on the end face of the upper side of the first marking plate 39, a second electrifying magnet 62 is fixedly arranged on the end face of the upper side of the first screening cavity 11, the first electrifying magnet 61 is located below the second electrifying magnet 62, the same marking devices are also arranged in the second screening cavity 19, and the same marking devices are located on the lower side of the marking devices.
Advantageously, the first screening device comprises a screening box device and a screening moving device; the screening moving device comprises a first screening groove 48 and a second screening groove 49 which are symmetrically arranged on the front side end wall and the rear side end wall of the first screening cavity 11, the first screening groove 48 is positioned on the left side of the second screening groove 49, a first screening block 50 is arranged in the first screening groove in an up-down sliding fit manner, a second screening block 51 is arranged in the second screening groove 49 in an up-down sliding fit manner, a seventh rotating roller 52 is arranged between the first screening blocks 50 in a rotating fit manner, an eighth rotating roller 53 is arranged between the second screening blocks 51 in a rotating fit manner, a third screening groove 54 extending up and down is arranged on the rear side end face of the box body 10, a fourth screening groove 55 is arranged between the third screening groove 54 and the first screening groove 48, a second motor 56 is arranged in the third screening groove 54 in an up-down sliding fit manner, and a second driving shaft 57 is connected between the second motor 56 and the rear side end face of the seventh rotating roller 52 in a power fit manner, a fourth conveyor belt 58 is arranged between the seventh rotating roller 52 and the eighth rotating roller 53 in a transmission matching manner, a first screening shaft 59 extending upwards is fixedly arranged on the upper side end face of the first screening block 50, and a second screening shaft 60 extending upwards is fixedly arranged on the upper side end face of the second screening block 51.
Beneficially, the screening box device includes a screening box 63 fixedly arranged on the top end surface of the box body 10, a screening chamber 64 is arranged in the screening box 63, a screening plate 65 is arranged in the screening chamber 64 in a vertically sliding fit manner, screening thrust springs 66 are symmetrically and fixedly arranged between the top end surface of the screening plate 65 and the top end wall of the screening chamber 64, a third electromagnet 67 is fixedly arranged on the top end surface of the screening plate 65, a fourth electromagnet 68 is fixedly arranged on the top end wall of the screening chamber 64, the first screening shaft 59 and the second screening shaft 60 extend upwards to the screening plate 65 and are fixedly connected with the same, and the screening device is positioned on the right side of the first conveying device.
Beneficially, the reversing device includes a reversing groove 69 disposed on the end face of the bottom of the first sieving chamber 11 and communicated with the second sieving chamber 19, the reversing groove 69 is located on the right side of the sieving device, a reversing block 70 entering the first sieving chamber 11 through the reversing groove is disposed on the right end wall of the second sieving chamber 19, first reversing grooves 71 are symmetrically disposed on the left end face of the reversing block 70 from top to bottom, the first reversing groove 71 located on the upper side is located on the right side of the fourth conveyor belt 58, second reversing grooves 72 are disposed between the first reversing grooves 71, the second reversing grooves 72 are communicated with the first reversing grooves 71, a limiting plate 74 is fixedly disposed at the left end of the second reversing grooves 72, a push plate 75 is disposed in the second reversing grooves 72 in a left-right sliding fit manner, a fifth-through electromagnet 76 is disposed at the left end face of the push plate 75, and a sixth-through electromagnet 77 is fixedly disposed between the right end faces of the limiting plate 74, fifth logical electro-magnet 76's left side terminal surface with reverse thrust spring 78 has set firmly between the right side terminal surface of sixth logical electro-magnet 77, reverse block 70's right side terminal surface has set firmly the third power shaft 79 that extends right, third power shaft 79 extends to in the first waste chamber 26 and right side terminal surface power cooperation are connected with third motor 80, third motor 80 set firmly in the left side terminal surface of first waste chamber 26.
Beneficially, the second screening device includes a second waste cavity 81 disposed at the lower side of the second screening cavity 19, a first distributing groove 82 communicated with the second waste cavity 81 is disposed on the bottom end surface of the second screening cavity 19, the left side section of the first distributing groove 82 is communicated with the discharge port 20, a first distributing shaft 83 is rotatably fitted between the front end wall and the rear end wall of the first distributing groove 82, a right-inclined distributing plate 84 is fixedly disposed on the first distributing shaft 83, second distributing grooves 85 extending downwards and passing through the first distributing groove 82 are symmetrically disposed on the front end wall and the rear end wall of the second screening cavity 19, a distributing block 86 is slidably fitted in the second distributing groove 85 up and down, a distributing tension spring 87 is fixedly disposed between the top end surface of the distributing block 86 and the top end wall of the second distributing groove 85, a distributing through groove 88 is disposed on the left end surface of the distributing block 86, the end face of one side of the distributing through groove 88, which is far away from the second distributing groove 85, is communicated with the outside, the distributing plate 84 extends rightwards to pass through the distributing through groove 88, the end face of the bottom of the distributing block 86 is fixedly provided with a seventh electrified magnet 89, and the end wall of the bottom of the second distributing groove 82 is fixedly provided with an eighth electrified magnet 90.
Advantageously, the probe means comprises a first image probe 29 fixed to the top end face of the first sifting chamber 11, the first image probe 29 being located to the left of the marking means, and a second image probe 30 fixed to the top end face of the second sifting chamber 19, the second image probe 30 being located between the reversing means and the marking means.
The applicant will now specifically describe an image processing screening apparatus of the present application with reference to figures 1 to 7 and the above description:
when the marker pen is ready to work, a marker pen extends into the box body 10 from the first through groove 47, the marker pen extends into the space between the clamping plates 43, the clamping shaft sleeve 46 is rotated, the clamping shaft sleeve 46 rotates to move upwards along the second marking plate 41, the clamping shaft sleeve 46 moves upwards to drive the second marking plate 41 to gather towards the center along the fifth marking groove 40, the second marking plate 41 drives the third marking plate 42 to gather towards the center, the third marking plate 42 drives the clamping plate 43 to gather towards the center, the clamping plate 43 gradually clamps the marker pen, the first electrifying magnet 61 and the second electrifying magnet 62 are electrified and attracted with each other, the second marking tension spring 38 and the first marking tension spring 37 are stretched, and the marking device is located at the top end of a stroke;
when the working is started, the first motor 18 is started to drive the first driving shaft 17 to rotate, the first driving shaft 17 drives the first rotating roller 13 to rotate, the first rotating roller 13 drives the second rotating roller 14 to rotate through the conveyor belt 15, the first rotating roller 13 drives the first chain wheel 16 to rotate, the first chain wheel 16 drives the second chain wheel 24 to rotate through the first chain 25, the second chain wheel 24 drives the third rotating roller 21 to rotate, the third rotating roller 21 drives the fourth rotating roller 22 to rotate through the second conveyor belt 23, the second motor 56 is started to drive the second driving shaft 57 to rotate, the second driving shaft 57 drives the seventh rotating roller 52 to rotate, the seventh rotating roller 52 drives the eighth rotating roller 53 to rotate through the fourth conveyor belt 58, and the third motor 80 is started to drive the third power shaft 79 to rotate, the third power shaft 79 drives the reverse rotation block 70 to rotate.
When marking for the first time, the workpiece to be detected is intermittently placed on the conveyor belt 15 by other equipment, the workpiece and the conveyor belt 15 move together in the right direction, after the workpiece moves through the first image probe 29, the workpiece moves continuously through detection if the workpiece is detected to be qualified, if the workpiece is judged to be unqualified, the first electromagnet 61 and the second electromagnet 62 are powered off, the first marking tension spring 37 and the second marking tension spring 38 release to pull the first marking block 33 to move downwards along the first marking groove 31, the first marking block 33 and the second marking block 34 pull the marking clamping device to move downwards through the third marking groove 35 and the fourth marking groove 36, the marking clamping device drives the marking pen to move downwards, the marking pen falls off on the surface of the workpiece to mark, and after the marking is completed, the first electromagnet 61 and the second electromagnet 62 are powered on to mutually adsorb and upwards pull the marking device to re-move again At the top of the stroke.
For the first classification, the unqualified workpieces are moved onto the fourth conveyor belt 58 by the first conveyor belt 15, the third electromagnet 67 and the fourth electromagnet 68 are electrified to attract and pull the screening plate 65 to move upwards, the screening plate 65 compresses the screening thrust spring 66, the screening plate 65 drives the first screening shaft 59 and the second screening shaft 60 to move upwards, the first screening shaft 59 and the second screening shaft 60 drive the first screening block 50 and the second screening block 51 to move upwards along the first screening groove 48 and the second screening groove 49, the first screening block 50 drives the seventh rotating roller 52 to move upwards, the seventh rotating roller 52 drives the second driving shaft 57 to move upwards along the fourth screening groove 55, the second driving shaft 57 drives the second motor 56 to move upwards along the third screening groove 54, and when the screening moving device moves upwards to the top of the stroke, the unqualified workpiece moves to the fifth rotating roller 28 to the right and gradually falls into the first waste material cavity 26, and the third electromagnet 67 and the fourth electromagnet 68 are powered off, and the screening thrust spring 66 releases to drive the first screening device to reset; the first screening means is not active when a qualified workpiece passes the first vision probe 29.
When the workpiece starts to reversely rotate, the qualified workpiece is sent to the first reverse rotation groove 71 from the fourth conveyor belt 58, after the qualified workpiece rotates 180 degrees, the fifth-way electromagnet 76 and the sixth-way electromagnet 77 are electrified and mutually adsorbed, the fifth-way electromagnet 76 drives the push plate 75 to move to the left, the push plate 75 drives the qualified workpiece to move to the left, and the push plate 75 moves to the second conveyor belt 23 from the first reverse rotation groove 71.
During the second marking, the workpiece and the second conveyor belt 23 move leftwards together, after the workpiece passes through the second image probe 30 in the moving process, the workpiece continues to move after being detected to be qualified, if the judgment result is not qualified, the first electromagnet 61 and the second electromagnet 62 are powered off, the first and second marking tension springs 37 and 38 are released to pull the first marking block 33 downward along the first marking groove 31, the first marking block 33 pulls the marking clamp down through the third marking slot 35 together with the second marking block 34 through the fourth marking slot 36, the marking clamping device drives the marking pen to move downwards, the marking pen drops marks on the surface of a workpiece, and after the marking is finished, the first electromagnet 61 and the second electromagnet 62 are electrified to be mutually adsorbed and upwards pulled to pull the marking device to be positioned at the top end of the stroke again.
In the second screening, the qualified workpieces slide out of the box body 10 from the discharge port 20 through the second conveyor belt 23 and the material distributing plate 84, the unqualified workpieces move leftwards, the seventh electromagnet 89 and the eighth electromagnet 90 are electrically attracted to each other, the seventh electromagnet 89 moves down along the second sub-tank 85, the seventh electromagnet 89 drives the distributing block 86 to move downwards, the distributing block 86 stretches the distributing tension spring 87, the distributing through groove 88 in the distributing block 86 drives the distributing plate 84 to rotate counterclockwise along the first distributing shaft 83, the unqualified workpiece falls on the slope surface of the distributing plate 84 from the second conveyor belt 23 and slides into the second waste cavity 81, the seventh electrified magnet 89 and the eighth electrified magnet 90 are powered off, and the material distributing tension spring 87 releases and pulls the second screening device to reset.
The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.