JP6289538B2 - Swing sorter - Google Patents

Description

  The present invention relates to a sorter that sorts an object to be sorted into a small-diameter object, a light-weight object, and a heavy object by an oscillating body that is tilted and oscillated.

  Conventionally, in order to use waste plastics and papers contained in wastes as recycled resources, various techniques related to waste sorting have been developed. As a sorter that sorts waste plastics and papers from waste, the present applicant has proposed a swing sorter that uses the difference in resilience of sort objects (see Patent Document 1).

  FIG. 10 is a schematic diagram showing a swing sorter 501 according to Patent Document 1. As shown in FIG. The swing sorter 501 includes a casing 502 that is tilted so that the front end portion is located above the rear end portion, and a plurality of swing bodies 503 that are tilted and arranged together with the casing 502 in the casing 502. Is provided. The plurality of oscillators 503 have a front portion supported by a front eccentric bearing unit 504 and a rear portion supported by a rear eccentric bearing unit 505. When the drive shaft connected to the rear side eccentric bearing unit 505 is driven to rotate, the rear side eccentric bearing unit 505 rotates eccentrically, and the front side eccentric bearing unit 504 is driven to rotate eccentrically. Swing.

  As indicated by an arrow E, the waste is input from the input port 521 at the top of the casing 502, received by the swinging swinging body 503, and sorted by the operation of the swinging body 503. That is, a small-diameter object out of the waste falls through the hole provided in the rocking body 503. A heavy repulsive material among wastes moves backward on the rocking body 503 by gravity and falls from the rear end of the rocking body 503. A lightweight material having a small resilience among the wastes moves forward by a feeding operation accompanying the swing of the swinging body 503 and falls from the front end of the swinging body 503. The small-diameter object 92 thus selected is discharged from a small-diameter object discharge port 522 at the center of the lower portion of the casing 502 as indicated by an arrow F. As indicated by the arrow G, the heavy article 93 is discharged from the heavy article discharge port 523 on the lower side of the casing 502. As indicated by an arrow H, the lightweight object 94 is discharged from the lightweight object discharge port 524 on the lower side of the casing 502.

  On the rear end surface of the casing 502, a blower 506 for promoting sorting of the lightweight object 94 is installed. The air blower 506 blows air supplied from a blower (not shown) toward the front side, and forms an air flow parallel to the rocking body 503 in the vicinity of the upper surface of the rocking body 503. The air flow that has reached the front side of the casing 502 is discharged from an exhaust port 525 provided in the upper part of the front side of the casing 502. The movement of the lightweight object 94 is promoted by this air flow, and the feeding operation of the lightweight object 94 by the rocking body 503 is assisted to promote the selection of the lightweight object 94.

JP 2011-088114 A

  However, in the conventional swing sorter, the air blown out from the blower 506 is likely to be turbulent in the casing 502, and the lightweight object 94 is caused to flow backward in the casing 502 by the turbulent air flow. In this case, there is a disadvantage that the light weight 94 is mixed and the sorting accuracy is lowered. In addition, the air flow in the casing 502 is discharged not only from the exhaust port 525 but also from the light object discharge port 524, and the dust-containing wind is sent to the work area of the post-process for processing the light object 94. There is.

  Accordingly, an object of the present invention is to provide an oscillating sorter that can effectively reduce the turbulence of the air flow in the casing and prevent the sorting accuracy from being lowered. Another object of the present invention is to provide a rocking sorter that can effectively suppress the wind sent to the work area of the subsequent process.

In order to solve the above-mentioned problem, the swing sorter of the present invention has a plurality of strip-shaped swing bodies having a through hole and a saw-shaped feed member, which are arranged inclined with respect to a horizontal plane,
A drive unit that drives the plurality of oscillators to swing by giving a phase difference to each other;
A blower for supplying air from the rear to the front of the rocking body;
The rocking body is accommodated, and the input port of the sorting object located above the rocking body, the small-diameter object discharge port located below the central part of the rocking body, and below the rear portion of the rocking body. A heavy-weight discharge port positioned; a light-weight discharge port positioned below the front portion of the rocking body; and an exhaust port positioned above the front portion of the rocking body. And a casing having a front end portion.

  According to the above configuration, for example, an object to be sorted such as waste is input from the input port of the casing and received on the plurality of rocking bodies. The objects to be sorted are divided into small-diameter items, heavy-weight items, and light-weight items by the action of an oscillating body driven by a drive unit. Specifically, the small-diameter object among the objects to be sorted falls through the through hole of the rocking body and is discharged out of the casing from the small-diameter object discharge port. The heavy object among the objects to be sorted moves backward on the rocking body by gravity, falls from the rear end of the rocking body, and is discharged out of the casing through the heavy material discharge port. A lightweight object among the objects to be sorted is fed forward on the rocking body by the feeding member of the rocking body, and forward movement is promoted by the air supplied by the blower. The lightweight object that has moved on the oscillating body falls from the front end of the oscillating body and is discharged out of the casing through the lightweight object discharge port. Here, the air supplied from the air blower reaches the front end of the casing after promoting the movement of the lightweight object on the rocking body. Since the inner side surface of the front end portion of the casing is inclined upward, the flow of air from the blower is changed upward by the inner side surface. This effectively reduces the turbulence of the air flow in the casing, so that the turbulent air flow causes the lighter material to flow backward in the casing and effectively mixes the heavy material and lowers the sorting accuracy. Can be prevented. In addition, the air flow in the casing flows upward through the inner surface of the front end portion of the casing and is then discharged from the exhaust port located above the front portion of the rocking body. Can be effectively suppressed. Therefore, it is possible to effectively prevent the inconvenience of sending the air containing the dust of the object to be sorted to the work area of the post-process for processing the lightweight object.

  In the swing sorter according to an embodiment, a portion of the inner surface of the front end portion of the casing that extends in the direction in which air is supplied from the blower portion is inclined upward.

  According to the embodiment, the direction of the flow of air supplied from the blower can be effectively guided upward by the portion inclined upward on the inner surface of the front end portion of the casing. Therefore, the disturbance of the air flow in the casing can be effectively prevented, and the discharge of air from the lightweight object discharge port can be effectively suppressed.

  The swing sorter of one embodiment is provided with a plate-like body inclined upwards inside the front end portion of the casing.

  According to the above embodiment, the direction of the flow of the air supplied from the blower can be effectively guided upward by the upwardly inclined plate-like body disposed inside the front end of the casing. Therefore, the disturbance of the air flow in the casing can be effectively prevented, and the discharge of air from the lightweight object discharge port can be effectively suppressed.

  In one embodiment of the swing sorter, the casing has a protruding portion that protrudes upward at a front portion, and the exhaust port is provided in the protruding portion.

  According to the above embodiment, the air that has been supplied from the blower and reaches the front side portion of the casing is led upward by the inner surface of the front end portion of the casing so that the flow is changed upward. Discharged from. Therefore, it is possible to effectively prevent the inconvenience that the air returns to the rear side of the casing.

  The swing sorter according to an embodiment is provided with a second air blowing unit that supplies air toward the front side behind the charging port in the casing.

  According to the said embodiment, the to-be-sorted object thrown in in the casing from the inlet is unwound by the air supplied from the 2nd ventilation part. Therefore, at least a part of the object to be sorted is separated into a small-diameter article, a lightweight article and a heavy article before being received by the rocking body, so that the sorting accuracy can be effectively improved. In addition, since the first air blowing unit and the second sending unit form an air flow in the casing from the rear side to the front side, the air flow in the casing can be effectively prevented from being disturbed. Therefore, it is possible to effectively prevent the disadvantage that the lightweight object is caused to flow backward in the casing due to the turbulent air flow and mixed into the heavy object to reduce the sorting accuracy.

  The swing sorter according to an embodiment includes a filter that collects the lightweight object between the swing body in the casing and the exhaust port.

  According to the above-described embodiment, a lightweight object that flows toward the exhaust port by the airflow in the casing can be collected by the filter. Therefore, it is possible to effectively prevent the inconvenience that the lightweight object is discharged from the exhaust port.

  The swing sorter according to an embodiment includes a plate member that prevents the lightweight object from adhering to the bearing in front of a bearing that swingably supports the rocking body in the casing.

  According to the above-described embodiment, even if a lightweight object falling from the front end of the oscillating body flows in the direction of the bearing of the oscillating body due to the air flow in the casing, the attachment of the lightweight object to the bearing is effectively prevented by the plate member. it can.

  In one embodiment of the swing sorter, the swing body has a hanging member that extends downward from the front edge.

  According to the above embodiment, since the lightweight object falling from the front end of the rocking body is guided downward by the hanging member, even if the air flow in the casing flows in the direction of the bearing of the rocking body, the lightweight object adheres to the bearing. Inconvenience can be effectively prevented.

In one embodiment of the swing sorter, the tilt angle of the swing body is not less than 13 ° and not more than 30 °, and the total amount of air supplied from the first blower and the second blower is 100 m. ³ / min or more and 300 m ³ / min or less.

According to the above embodiment, the swinging object having an inclination angle of 13 ° or more and 30 ° or less appropriately moves the weight of the object to be sorted rearward, and is 100 m ³ / min or more from the first and second blowing units. By supplying air with an air amount of 300 m ³ / min or less, a lightweight object can be appropriately sent forward. Therefore, it is possible to effectively improve the accuracy of sorting heavy and light items. Moreover, since the moving speed on the rocking | swiveling body of a heavy article and a lightweight article can be increased, processing capacity can be improved effectively. Here, when the inclination angle of the rocking body is less than 13 °, a heavy object moving forward on the rocking body is generated, and the heavy object mixed in the light object discharged from the light object discharge port increases. On the other hand, when the tilt angle of the rocking body exceeds 30 °, a light material that does not move forward on the rocking body is generated, and the light material mixed in the heavy material discharged from the heavy material discharge port increases. In addition, when the total amount of air blown by the first and second air blowing units is less than 100 m ³ / min, a light material that does not move the rocking body forward is generated and mixed into the heavy material discharged from the heavy material discharge port. Lightweight items increase. On the other hand, when the total amount of air blown by the first and second air blowing units exceeds 300 m ³ / min, the heavy object moves forward on the rocking body and is mixed into the light object discharged from the light object discharge port. The weight increases.

It is a longitudinal section showing an oscillation sorter of an embodiment of the present invention. It is a top view of a rocking sorter. It is a plane sectional view of a rocking sorter. It is a cross-sectional view of a rocking sorter. It is a perspective view which shows the front side part of an oscillating body, and an eccentric bearing unit. It is a fragmentary sectional view which shows the back side part of an oscillating body, and an eccentric bearing unit. It is sectional drawing along the II line | wire in FIG. It is a side view which shows the rocking | swiveling sorter of other embodiment. It is a side view which shows the rocking | swiveling sorter of other embodiment. It is a longitudinal cross-sectional view which shows the conventional rocking sorter.

  Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

  The rocking sorter according to the embodiment of the present invention is a small-diameter, heavy-weight, and light-weighted material that is preliminarily crushed and includes different sizes and weights in a waste treatment process. It sorts and discharges to three kinds of things. Examples of such waste include mixed waste in which multiple types of waste are mixed. Examples of mixed waste include combustible materials such as wood and wallpaper, and non-combustible materials such as concrete and glass. Construction waste. Examples of mixed waste include general waste in which combustible materials such as waste plastic such as food containers and plastic bags, waste paper, and food residues, and non-combustible materials such as small appliances are mixed.

  1 is a longitudinal sectional view showing an oscillating sorter according to an embodiment, FIG. 2 is a plan view of the oscillating sorter, and FIG. 3 is a plan sectional view of the oscillating sorter. These are cross-sectional views of a rocking sorter. The swing sorter 1 of the present embodiment includes a substantially box-shaped casing 2 that is inclined and supported so that the front side is positioned higher than the rear side, and a plurality of strip-shaped casings arranged in the casing 2. Oscillators 3, 3, 3,.

  The casing 2 has a main body portion 2a having an inverted trapezoidal cross section in which the outer surface of the front end portion 28 is inclined downward, and a protruding portion 2b protruding upward from a front side portion of the main body portion 2a. The main body 2a of the casing 2 is provided with an input port 21 provided at the center of the upper surface in the longitudinal direction, a small-diameter discharge port 22 provided at the center of the lower surface in the longitudinal direction, and a rear side portion of the lower surface. And a light weight discharge port 24 provided in the front portion of the lower surface. The projecting portion 2b is formed in a box shape at the lower portion, and has a reverse funnel shape that is inclined toward the front in the vertical cross section while the flat cross section is reduced as the upper portion is directed upward. An exhaust port 25 for discharging the air in the casing 2 is provided on the upper end surface of the protruding portion 2b. The inner side surface of the front end portion 28 of the casing 2 has a normal line extending from the surface on which the oscillator 3 extends so that air from the first blower unit 6 and the second blower unit 7 described later flows in the direction of the exhaust port 25. Is also inclined to face upward. That is, the inner surface of the front end portion 28 of the casing 2 is at least an extended position parallel to the swinging body 3 from the blowing nozzle 63 of the first blower unit 6, and the swinging body 3 from the blowing nozzle 73 of the second blower unit 7. At a position on the parallel extension, the normal line is inclined so as to face upward with respect to the extension surface of the oscillator 3.

  The rear end portion 27 of the casing 2 is provided with a first air blowing portion 6 that forms an air flow toward the front side. Moreover, the 2nd ventilation part 7 which forms an air flow toward the front side from the rear side of the inlet 21 is provided in the vicinity of the inlet 21 in the casing 2 in the upper part of the main-body part 2a of the casing 2. . In addition, the filter 9 is disposed at the front portion in the casing 2 so as to be positioned between the front portion of the rocking body 3 and the exhaust port 25.

  Each of the plurality of oscillating bodies 3 in the casing 2 has a front portion supported by the front eccentric bearing unit 4 and a rear portion supported by the rear eccentric bearing unit 5. Each rocking body 3 is arranged in parallel to each other, and is inclined so that the front end is positioned higher than the rear end. In the present invention, the direction in which the lightweight object 94 is sent by the operation of the oscillator 3 is defined as the front direction, and the direction in which the heavy object 93 moves is defined as the rear direction.

  FIG. 5 is a perspective view showing the front portion of the oscillator 3 and the front eccentric bearing unit 4. The oscillating body 3 includes an elongated rectangular sieve plate 31 provided with a plurality of through holes 31 a, a saw-like feed member 32 erected along both edges of the sieve plate 31, and the sieve plate 31. A width direction plate 33 is provided on the surface so as to extend in the width direction.

  The sieve plate 31 is formed of a plate material, and a through hole 31 a is provided in a portion between the front eccentric bearing unit 4 and the rear eccentric bearing unit 5. The through hole 31a is formed in a size corresponding to the size of the small-diameter object 92 to be selected, and is formed by punching into a circular or polygonal shape. When the rocking body 3 is driven to swing, the sieve plate 31 is a small-diameter object 92 such as earth and sand, nails, screws, leftovers, and tea shells contained in the material to be sorted 91 that has been inserted into the through hole 31a from the insertion port 21. And let it drop below the rocking body 3. Further, the sieve plate 31 is driven by the oscillating body 3 so that a heavy object 93 such as a pottery piece, a metal piece, a hardware, a can, a plastic bottle, a glass bottle, a block, a concrete piece, a stone, a shoe, etc. Then, it is rolled or slid to move downward in the inclined direction, that is, to the rear of the rocking body 3. Thus, the heavy object 93 that moves to the lower side of the tilting direction of the oscillator 3 is mainly a highly repulsive material such as metal, stone, or hard plastic. Note that the sieve plate 31 may be formed of a mesh between the front eccentric bearing unit 4 and the rear eccentric bearing unit 5 so as to realize the function of selecting a small-diameter object 92 similar to the through hole 31a. The sieve plate 31 is reinforced by a girder member 35 disposed on both sides of the lower surface and extending in the longitudinal direction and a groove member 38 provided between the girder members 35 on the lower surface side.

  The feed member 32 of the oscillating body 3 is formed of an angle material, and a sawtooth formed by a front hypotenuse 32a and a rear hypotenuse 32b is formed on one flange. The feed member 32 is attached to the sieve plate 31 with the other flange fixed along the edge of the sieve plate 31. The front oblique side 32a of the saw tooth of the feed member 32 is formed to form an acute angle with respect to the sieve plate 31 with respect to the rear oblique side 32b. This feed member 32 is light weight such as fiber waste, paper, wood pieces, plastic tray, plastic film, plastic sheet, etc. contained in the object to be sorted 91 fed from the insertion port 21 when the rocking body 3 is driven to rock. While the object 94 is in contact with the front hypotenuse 32a and is slid with the rear hypotenuse 32b, a feeding operation is performed to send the rocking body 3 upward in the tilt direction. Thus, the lightweight object 94 sent to the upper side of the tilting direction of the oscillator 3, that is, the front side, has a low resilience. Note that when the number of feed members 32 and saw teeth is increased, the amount of sorting of the lightweight object 94 is increased, and when the number of feed members 32 and saw teeth is decreased, the amount of sorting of the heavy object 93 is increased. Here, the feeding member is formed of a plate material erected on the edge of the sieve plate 31 in the extending direction, and the sieve plate 31 has a steep angle portion and a gentle angle portion with respect to the horizontal plane in a side view. You may bend and form so that it may continue alternately. That is, the sieve plate 31 may also serve as a feeding member. Further, the feeding members are arranged in a staggered manner on the surface of the sieve plate 31 in addition to being formed of a plate material erected in the extending direction at the edge of the sieve plate 31, and from the rear hypotenuse and the rear hypotenuse Alternatively, it may be formed of a triangular sawtooth having a front hypotenuse that forms a steep angle with respect to the sieve plate 31.

  The width direction plate 33 is formed of an angle material, one flange is fixed to the surface of the sieve plate 31, and the other flange is erected perpendicularly to the surface of the sieve plate 31 and extends in the width direction. . The width direction plate 33 prevents the lightweight object 94 sent to the front side by the feeding member 32 from sliding on the surface of the sieve plate 31 and moving backward, and assists the conveyance of the lightweight object 94 to the front. .

  A hanging member 36 that extends downward at a right angle to the sieve plate 31 is attached to the edge of the upper end of the swing body 3 in the tilt direction, that is, the front end edge of the swing body 3. The drooping member 36 prevents the lightweight object 94 that is sent on the rocking body 3 and dropped from the front end edge from flowing to the front eccentric bearing unit 4 that supports the rocking body 3. The conventional oscillating sorter has a disadvantage that a part of the air flowing toward the lightweight object discharge port 524 flows in the casing 502 below the oscillating body 503, thereby causing the lightweight object 94 to adhere to the front eccentric bearing unit 504. . According to the present embodiment, the hanging member 36 is provided at the front end edge of the oscillating body 3, thereby reducing the air flow flowing below the oscillating body 3 and preventing the lightweight object 94 from adhering to the front eccentric bearing unit 4. it can. Further, a partition plate 85 extending in the width direction on the front side of the front eccentric bearing unit 4 is provided in the vicinity of the lightweight object discharge port 24 in the casing 2. The partition plate 85 has an upper end located between the front eccentric bearing unit 4 and the hanging member 36 of the rocking body 3, and a lower end located in the vicinity of the opening of the light weight discharge port 24. The partition plate 85 is fixed to the casing 2 by a rod-like support member 87 that spans the casing 2 in the width direction. A plurality of rubber plates 86 arranged separately in the width direction of the casing 2 are fixed to the lower end of the partition plate 85, and the lower ends of the rubber plates 86 protrude from the opening of the lightweight object discharge port 24. The partition plate 85 and the rubber plate 86 can further reduce the air flow flowing below the oscillating body 3, and can effectively prevent inconvenience that the light weight 94 adheres to the front eccentric bearing unit 4.

  Among the plurality of oscillating bodies 3 arranged in the casing 2, the oscillating bodies 3 positioned at both ends in the width direction are provided with side walls 34 along the edge on the side adjacent to the inner side surface of the casing 2. The side wall 34 is formed of a plate-like body, and has a flange extending at right angles to the sieve plate 31 of the feed member 32 on one of the two feed members 32 provided on both sides in the width direction of the oscillator 3. Overlaid and fixed. The height of the side wall 34 can be set to 0.5 to 2 times the width of the sieve plate 31. Preferably, the height of the side wall 34 is 0.7 to 1.5 times the width of the sieve plate 31. An angle member other than the feeding member 32 may be used as a fixing member that fixes the side wall 34 to the oscillator 3. The side wall 34 provided on the oscillating body 3 at both ends in the width direction may cause a problem that an object to be selected is sandwiched between the oscillating oscillating body 3 and the inner surface of the casing 2, or the inner surface of the oscillating body 3 and the casing 2. It is possible to prevent the problem that the object to be sorted falls through the gap.

  FIG. 6 is a partial cross-sectional view showing the rear portion of the oscillating body 3 and the rear eccentric bearing unit 5, and FIG. 7 is a cross-sectional view showing the oscillating body 3 and the rear eccentric bearing unit 5. FIG. 7 is a cross-sectional view taken along the line II in FIG. In FIG. 6, the oscillating body 3 is drawn horizontally, but in the casing 2, it is held in an inclined state as shown in FIG. 1. The front-side eccentric bearing unit 4 and the rear-side eccentric bearing unit 5 that support the oscillating body 3 are driven to oscillate such that the oscillating body 3 draws a circular orbit in a side view while maintaining the inclination angle of the oscillating body 3. The front eccentric bearing unit 4 and the rear eccentric bearing unit 5 have substantially the same configuration. The rear eccentric bearing unit 5 is connected to the drive shaft 15 and rotates eccentrically by the rotational force input from the drive shaft 15. On the other hand, the front-side eccentric bearing unit 4 is connected to the driven shaft 14, and is driven and eccentrically rotated around the driven shaft 14 by the force transmitted through the rocking body 3.

  As shown in FIGS. 6 and 7, the rear eccentric bearing unit 5 includes a disc-shaped eccentric plate 51 fixed to the drive shaft 15, a short cylindrical eccentric rotating member 52 surrounding the outer periphery of the eccentric plate 51, and an eccentricity. A rolling bearing 54 interposed between the plate 51 and the eccentric turning member 52 is formed. The eccentric plate 51 is fixed to the drive shaft 15 penetrating at a position deviated from the center to the outer peripheral side. The eccentric turning member 52 is fixed to a groove member 38 provided on the lower surface side of the rocking body 3. The rolling bearing 54 includes an inner ring 55 fixed to the outer peripheral surface of the eccentric plate 51, an outer ring 57 fixed to the inner peripheral surface of the eccentric turning member 52, and a plurality of rolling rollers interposed between the inner ring 55 and the outer ring 57. The moving body 56 is included. The rolling elements 56 are formed of balls. The rolling bearing 54 is formed so that the eccentric turning member 52 revolves as the eccentric plate 51 rotates. As shown in FIG. 7, two rows of rolling elements 56 are arranged in the rolling bearing 54 of the rear eccentric bearing unit 5 along the length direction of the drive shaft 15. In the present embodiment, the rolling bearing 54 having balls as rolling elements is provided, but a rolling bearing having cylindrical rollers or tapered rollers as rolling elements may be provided. Similarly to the rear eccentric bearing unit 5, the front eccentric bearing unit 4 includes a disc-shaped eccentric plate fixed to the driven shaft 14, a short cylindrical eccentric rotating member surrounding the outer periphery of the eccentric plate, and an eccentric plate. And a rolling bearing interposed between the eccentric turning member and the eccentric turning member. Similar to the rear eccentric bearing unit 5, the eccentric turning member of the front eccentric bearing unit 4 is fixed to a groove member 38 provided on the lower surface side of the oscillator 3.

  The drive shaft 15 connected to the rear side eccentric bearing unit 5 and the driven shaft 14 connected to the front side eccentric bearing unit 4 are made of a linear shaft member, that is, in the width direction of the swing sorter 1, that is, It is supported so as to extend in a direction perpendicular to the longitudinal direction of the oscillator 3. The driven shaft 14 and the drive shaft 15 are supported by a plurality of bearing support members 13 at a plurality of positions in the length direction, as shown in the cross-sectional view of FIG. The bearing support member 13 that supports the driven shaft 14 is supported by a front support beam 41 that extends in the width direction of the front lower portion of the casing 2. The bearing support member 13 that supports the drive shaft 15 is supported by a rear support beam 45 that extends in the width direction of the rear lower portion of the casing 2. Both ends of the drive shaft 15 are connected to the drive motor 11 via the coupling device 12 and the speed reduction device 10. The coupling device 12, the speed reduction device 10, and the drive motor 11 are supported by the rear support beam 45 of the casing 2, and move with the casing 2 as the inclination angle of the casing 2 is adjusted, as will be described later. It is formed to do. The coupling device 12, the speed reduction device 10, and the drive motor 11 may be attached to the casing 2 by a member other than the rear support beam 45.

  The eccentric plates 51 of the plurality of rear eccentric bearing units 5 disposed on the lower surface side of the plurality of oscillators 3 are fixed to a common drive shaft 15. Due to the configuration of the rear side eccentric bearing unit 5 described above, when the drive shaft 15 is driven to rotate, the eccentric plate 51 rotates eccentrically around the axis, and accordingly, the eccentric turning member 52 rotates eccentrically around the drive shaft 15. Further, the rotational force from the drive shaft 15 is transmitted to the front eccentric bearing unit 4 via the oscillator 3, and the eccentric plate of the front eccentric bearing unit 4 rotates eccentrically around the driven shaft 14, and the eccentric turning member. Revolves around the driven shaft 14. As a result, the swinging body 3 connected to the eccentric turning member 52 swings up and down and back and forth so as to draw a circular orbit when viewed from the direction of the drive shaft 15 while maintaining an inclination angle. In FIG. 6, when the rocking body 3 is swung, the feed member 32, the rocking body 3 and the rear eccentric bearing unit 5 that are located at the substantially uppermost point are indicated by solid lines, and their configurations that are located at the almost lowest point are virtually illustrated. This is indicated by a line (dashed line).

  When the drive shaft 15 is rotationally driven, all the oscillating bodies 3 are driven via the rear-side eccentric bearing units 5 disposed on the respective oscillating bodies 3 and oscillate all at once. In the present embodiment, each oscillating body 3 is set to have a phase difference of 180 ° with respect to the adjacent oscillating body 3. Therefore, as shown in FIG. 4, when a certain oscillating body 3 is located at the uppermost point, the oscillating body 3 adjacent thereto is located at the lowest point. In this way, the front eccentric bearing unit 4, the rear eccentric bearing unit 5, the driven shaft 14, the drive shaft 15, the motor 11, the speed reducer 10, and the coupling device 12 give the plurality of oscillators 3 a phase difference. The drive part which drives is comprised.

  The linear driven shaft 14 and the drive shaft 15 can stably ensure load resistance and rotational balance even when the length dimension is set larger than that of the crankshaft. That is, according to the configuration in which the rocking bodies 3 arranged in parallel are supported by the linear driven shaft 14 via the front eccentric bearing unit 4 and the linear drive shaft 15 via the rear eccentric bearing unit 5. The number of the oscillating bodies 3 can be increased by increasing the length of the driven shaft 14 and the driving shaft 15 while ensuring load resistance and rotational balance, and thus the processing capacity of the oscillating sorter 1 can be improved. . Thereby, for example, a large amount of heavy objects 93 can be processed. In addition, even when the number of the oscillating bodies 3 is increased, load resistance and rotation balance are ensured, so that an increase in vibration and noise can be suppressed.

  In this embodiment, the driven shaft 14 and the drive shaft 15 are supported by a plurality of bearing support members 13 at a plurality of positions in the length direction. However, the driven shaft 14 and the drive shaft 15 are linear. As long as the bearing support member 13 does not interfere with the front-side eccentric bearing unit 4 or the rear-side eccentric bearing unit 5, the bearing support member 13 can be disposed at any position in the length direction of the driven shaft 14 and the drive shaft 15. Thereby, the load resistance and rotation balance of the driven shaft 14 and the drive shaft 15 can be improved relatively easily.

  The driven shaft 14 and the drive shaft 15 that support the rocking body 3 are supported by the front support beam 41 at the front lower portion of the casing 2 and the rear support beam 45 at the rear lower portion of the casing 2 via the bearing support member 13. Has been. The front support beam 41 to which the bearing support member 13 that supports the driven shaft 14 is attached is supported by the front column 43 via a hinge 42. The rear support beam 45 to which the bearing support member 13 that supports the drive shaft 15 is attached is supported by the rear column 47 via a hinge 46. The front column 43 is set to have a higher upper end than the rear column 47, and the front support beam 41 is disposed above the rear support beam 45. Thereby, the casing 2 and the some rocking body 3 incline with respect to a horizontal surface. The front column 43 incorporates an actuator such as a hydraulic cylinder or an electric cylinder, and the height of the hinge 42 provided at the upper end of the front column 43 can be adjusted by extending or contracting this actuator. As a result, the height of the casing 2 relative to the rear support beam 45 of the front support beam 41 can be adjusted, and the inclination angle of the casing 2 and the rocking body 3 can be adjusted. The inclination angle of the casing 2 and the rocking body 3 is adjusted in association with the air volume into the casing 2 by the first blower 6 and the second blower 7, as will be described later.

  The first air blower 6 is provided at the rear end portion 27 of the casing 2 and forms an air flow from the rear to the front in the vicinity of the surface of the rocking body 3 that is driven to rock. This assists the feeding operation. The first air blower 6 has a circular cross-section blower pipe 61 connected to a blower (not shown), and is connected to the blower pipe 61 and penetrates the casing 2, and the width increases toward the downstream to increase the cross section. The connecting duct 62 is formed in a rectangular shape, and includes a blowing nozzle 63 provided at the tip of the connecting duct 62 and having an elongated rectangular opening extending in the width direction. Two first blowers 6 are arranged in the width direction of the rear end portion 27 of the casing 2. As shown in FIG. 1, the wind blown from the first blower 6 as indicated by an arrow A1 flows in the vicinity of the surface of the oscillating body 3 substantially parallel to the oscillating body 3 as indicated by an arrow B1. . The amount of air blown by the first blower 6 is adjusted as described later in relation to the inclination angle of the casing 2 and the rocking body 3.

  The second air blowing unit 7 is provided in the upper part of the main body 2a of the casing 2 and forms an air flow in the vicinity of the charging port 21 in the casing 2 from the rear side to the front side of the charging port 21. 21 to be sorted is input from 21. The second blower section 7 has a circular cross-section blower pipe 71 connected to a blower (not shown), and is connected to the blower pipe 71 and penetrates the casing 2. The connection duct 72 is formed in a rectangular shape and includes a blowing nozzle 73 provided at the tip of the connection duct 72 and having an elongated rectangular opening extending in the width direction. Two second air blowers 7 are arranged in the width direction on the top surface of the main body 2 a of the casing 2. As shown in FIG. 1, the wind blown from the second air blowing section 7 as indicated by an arrow A2 flows substantially parallel to the oscillating body 3 above the oscillating body 3 as indicated by an arrow B2. The amount of air blown by the second blower 7 is adjusted as described later in relation to the inclination angle of the casing 2 and the rocking body 3.

  The swing sorter 1 is provided with an air blowing portion 8 for preventing light weight 94 and dust from adhering to the front eccentric bearing unit 4. The air blowing unit 8 includes a blower (not shown), a blower pipe 82 that guides air blown from the blower, and an air distribution pipe 81 connected to the blower pipe 82. The air distribution pipe 81 is disposed on the rear side of the front side eccentric bearing unit 4 so as to be substantially parallel to the drive shaft 15 of the front side eccentric bearing unit 4. The air distribution pipe 81 is formed by a straight circular cross-section pipe, and a plurality of air outlets formed by through holes on the surface facing the front eccentric bearing unit 4 are spaced at intervals of about 150 mm in the longitudinal direction. Is formed. The blower is also used as the blower of the second blower 7, and the blower pipe 82 of the air outlet 8 is branched from the blower pipe 71 of the second blower 7. Note that the blower of the air blowing unit 8 may also be used as the blower of the first blower unit 6. The air blowing unit 8 blows air guided from the blower through the blower pipe 82 to the air distribution pipe 81 from the air blower outlet toward the front eccentric bearing unit 4 as indicated by an arrow J in FIG. In this way, by blowing air to the front eccentric bearing unit 4 from the rear side to the front side, lightweight objects 94 and dust that have flowed from the upper side to the lower side of the rocking body 3 adhere to the front eccentric bearing unit 4 and the front side. It is possible to effectively prevent inconvenience that an abnormality occurs in the operation of the eccentric bearing unit 4.

  The filter 9 is disposed at a front side portion in the casing 2 between the main body portion 2a and the protruding portion 2b of the casing 2 and crosses the inside of the casing 2. The filter 9 is formed by arranging a plurality of flat bars in a lattice pattern. While this filter 9 allows the air which goes from the inside of the casing 2 to the exhaust port 25 to pass through, it collects the lightweight thing 94 which flows with this air, and prevents that the lightweight matter 94 is discharged | emitted from the exhaust port 25. FIG. The filter 9 is positioned so as to cross a line connecting the front end of the rocking body 3 and the exhaust port 25, and at least the front side portion of the filter 9 is discharged from the lightweight material discharge port 24 when the collected lightweight material 94 falls. It is preferable that the front side is disposed so as to be inclined downward so that it can be easily performed. The filter 9 may be a mesh screen such as a wire mesh, punching metal, or expanded metal, or a slit-shaped screen in which a plurality of flat bars are arranged in parallel to each other.

  The swing sorter 1 configured as described above operates as follows.

  First, a blower (not shown) is activated, and air is blown from the blowing nozzle 63 of the first blowing unit 6 as indicated by an arrow A1, and air is blown from the blowing nozzle 73 of the second blowing unit 7 as indicated by an arrow A2. Blown out. As a result, an air flow is formed near the surface of the oscillating body 3 as indicated by the arrow B1 parallel to the oscillating body 3, and an arrow parallel to the oscillating body 3 is provided near the inlet 21 of the casing 2. An air flow as shown by A2 to B2 is formed. Further, the motor 11 is activated, and the drive shaft 15 is driven via the speed reducer 10 and the coupling device 12. When the drive shaft 15 is driven to rotate, the driving force is transmitted to the oscillating body 3 via the rear side eccentric bearing unit 5 and the front side eccentric bearing unit 4 is driven so as to draw a circular orbit in the direction of the drive shaft 15. In addition, the swinging body 3 is driven to swing back and forth. The plurality of oscillating bodies 3 are driven so that the adjacent oscillating bodies 3 have a phase difference of 180 ° by the phase set in each of the front eccentric bearing unit 4 and the rear eccentric bearing unit 5.

  Subsequently, the object to be sorted 91 is conveyed by a conveyor or the like (not shown), and is loaded into the casing 2 from the loading port 21 as indicated by an arrow E in FIG. The sorting object 91 includes a heavy object 93 such as a bottle or a concrete piece, a lightweight object 94 such as a plastic sheet or paper, and a small-diameter object 92 such as sand or paper piece. The object to be sorted 91 input from the input port 21 is unwound by the air flow from the blowing nozzle 73 of the second air blowing unit 7 and then received by the oscillator 3. Among the objects to be sorted 91 on the oscillating body 3 that is oscillatingly driven, the small-diameter object 92 falls downward through the through-hole 31a of the sieve plate 31, and as shown by the arrow F in FIG. It is discharged from the discharge port 22. Further, among the objects to be selected 91 on the swinging body 3 that is driven to swing, the heavy object 93 rolls or slides on the surface of the sieve plate 31 by gravity and moves rearward, and the rear end of the swinging body 3. It falls from the edge and is discharged from the heavy load outlet 23 as indicated by an arrow G in FIG. Further, among the objects to be sorted 91 on the rocking body 3 that is rock-driven, the light weight 94 is moved by the feeding operation by the feeding member 32 and the air flow from the blowing nozzle 63 of the first air blowing unit 6. It is sent forward on the top. The lightweight object 94 sent to the front of the rocking body 3 falls from the front edge and is discharged from the lightweight object discharge port 24 as indicated by an arrow H in FIG. In this way, the object to be sorted 91 is sorted into the heavy article 93, the lightweight article 94, and the small diameter article 92. The selected small-diameter article 92, heavy article 93, and lightweight article 94 are subjected to a reuse process or disposal process corresponding to each.

  On the other hand, the air flow from the first blower 6 that flows in the vicinity of the surface of the oscillating body 3 collides with the inner surface of the front end portion 28 of the casing 2 as indicated by the arrow C1, and the inside of the casing 2 from the main body 2a. It flows toward the protrusion 2b. Further, the air flow from the second air blowing unit 7 that has flowed above the rocking body 3 collides with the inner surface of the front end portion 28 of the casing 2 and projects from the main body 2a as indicated by an arrow C2. It flows toward the part 2b. When the lightweight object 94 is caused to flow by these air flows, the lightweight object 94 is collected by the filter 9 when the air flow passes through the filter 9. The lightweight object 94 collected by the filter 9 falls away from the filter 9 and is discharged from the lightweight object discharge port 24 when the blowing by the first blowing unit 6 and the second blowing unit 7 is stopped. The air that has passed through the filter 9 flows upward as indicated by the arrow D and is discharged from the exhaust port 25 to the outside of the casing 2.

  As described above, in the swing sorter 1 of the present embodiment, the inner surface of the front end portion 28 of the casing 2 is inclined upward, so that the air flow from the first blower 6 and the second blower 7 is The inner surface of the front end portion 28 of the casing 2 is changed upward. Thereby, the turbulence of the air flow in the casing 2 is effectively reduced as compared with the conventional swing sorter 501 in which the inner surface of the front end portion of the casing 502 extends at right angles to the direction of the air flow. The As a result, it is possible to effectively prevent the inconvenience that the lightweight object 94 is caused to flow backward in the casing by the turbulent air flow and mixed into the heavy object 93 to reduce the sorting accuracy. Further, since the air flow in the casing 2 flows upward by the inner surface of the front end portion 28 of the casing 2 and then is discharged from the exhaust port 25 located above the front portion of the rocking body 3, the lightweight object discharge port The discharge of air from 24 can be effectively suppressed. Therefore, it is possible to effectively prevent the inconvenience of sending wind containing dust of the object to be sorted to the work area of the post-process for processing the lightweight object 94 sorted by the swing sorter 1.

The swing sorter 1 of the present embodiment sets the inclination angle of the swing body 3 and the amount of air supplied by the first blower unit 6 and the second blower unit 7, thereby reducing the weight 94 and the heavy load 93. Sorting accuracy can be effectively improved. Table 1 sorted out municipal waste as an object to be sorted with respect to the operating conditions of the comparative example and the example in which the inclination angle of the rocking body 3 and the blowing amount of the first blowing unit 6 and the second blowing unit 7 were set. The weight ratio of the small-diameter object 92 discharged from the small-diameter object discharge port 22, the heavy object 93 discharged from the heavy-material discharge port 23, and the lightweight object 94 discharged from the light-weight object discharge port 24 was shown. Is.

  Municipal waste is general waste in which plastic containers and packaging, which are lightweight items 94, food residues, which are small-diameter items 92, PET bottles, cans, batteries, and the like, which are heavy items 93, are mixed. Under the operating conditions of Comparative Example 1, since the light weight 94 such as a plastic container and packaging is mixed with the heavy material 93 discharged from the heavy material discharge port 23, the ratio of what is selected as the heavy material 93 is Relatively many. Moreover, the plastic bottle and the can which are the heavy goods 93 were mixed in what was discharged | emitted from the lightweight thing discharge port 24 as the lightweight thing 94. FIG. On the other hand, in the operation condition of Example 1, while increasing the inclination angle of the rocking body 3, and increasing the air volume of the 1st ventilation part 6 and the 2nd ventilation part 7, a PET bottle and a can are effective. Thus, the plastic container and packaging can be effectively fed forward on the rocking body 3 while dropping backward on the rocking body 3. As a result, in Comparative Example 1, the lightweight object 94 mixed in the heavy object 93 was appropriately discharged from the lightweight object discharge port 24, and as a result, the weight ratio of the lightweight object 94 was larger than that in Comparative Example 1. As described above, according to the operating conditions of Example 1, it is possible to accurately sort out light weight items 94 such as plastic containers and packaging from municipal waste. For example, RPF (Refuse Paper and Plastic Fuel) It can be effectively reused as a raw material for recycling.

Table 2 shows the operating conditions of the comparative example and the example in which the tilting angle of the rocking body 3 and the air blowing amount of the first air blowing unit 6 and the second air blowing unit 7 are set by the rocking sorter 1 of the present embodiment. When building mixed waste as sorting objects is sorted, the small-diameter item 92 discharged from the small-diameter item discharge port 22, the heavy item 93 discharged from the heavy-item discharge port 23, and the lightweight item discharge port 24. The weight ratio with the light weight 94 discharged | emitted from is shown.

In the building mixed waste, a thick soft plastic and wallpaper, which is a lightweight object 94, earth and sand, which is a small-diameter object 92, a concrete piece, which is a heavy object 93, and the like are mixed. Under the operating conditions of Comparative Example 2, since the light weight 94 is mixed with the heavy material 93 discharged from the heavy material discharge port 23, the proportion of the heavy material 93 selected is relatively large. On the other hand, in the operation conditions of Example 2, by increasing the air volume of the first air blowing unit 6 and the second air blowing unit 7, the soft plastic, wallpaper, and the like mixed in the heavy object 93 in Comparative Example 2 The light weight 94 is appropriately discharged from the light weight discharge port 24. As a result, the weight ratio of the light weight 94 is greater than that in Comparative Example 2. As described above, according to the operating conditions of the second embodiment, the lightweight materials 94 such as soft plastic and wallpaper can be selected with high precision from the building mixed waste, and can be effectively reused as a recycled material such as RPF. . Moreover, the processing mass per hour of the building system mixed waste which is a to-be-sorted object was 17.1 t / h in the comparative example 2, but was 23.8 t / h in the example 2. Thus, according to Example 2, since the inclination angle of the rocking body 3 is 20 °, and the total amount of air blown by the first air blowing unit 6 and the second air blowing unit 7 is 240 m ³ / min, the sorting is performed. It is possible to effectively achieve both improvement in accuracy and improvement in processing capacity. Here, when the inclination angle of the rocking body 3 is less than 20 °, a heavy object 93 that moves forward on the rocking body 3 is generated, and the heavy object 93 mixed in the light object 94 discharged from the light object discharge port 24 is generated. Since it increases, it is preferable that the inclination angle of the rocking body 3 is 20 ° or more. On the other hand, when the inclination angle of the rocking body 3 exceeds 25 °, a light weight 94 that does not move forward on the rocking body 3 is generated, and the light weight 94 mixed in the heavy weight 93 discharged from the heavy weight discharge port 23 increases. Therefore, the inclination angle of the oscillator 3 is preferably 25 ° or less. Further, when the total amount of air blown by the first and second air blowing units 6 and 7 is less than 200 m ³ / min, a lightweight object 94 that does not move the rocking body 3 forward is generated and discharged from the heavy material discharge port 23. Since the light weight 94 mixed in the heavy weight 93 increases, the total blown amount of the first and second blowers 6 and 7 is preferably 200 m ³ / min or more. On the other hand, when the total air volume of the first and second air blowing units 6 and 7 exceeds 250 m ³ / min, the heavy object 93 moves forward on the rocking body 3 and is discharged from the light object discharge port 24. Since the heavy article 93 mixed in the lightweight article 94 increases, the total air volume of the first and second air blowing units 6 and 7 is preferably 250 m ³ / min or less.

  In the above embodiment, the casing 2 has the main body 2a having an inverted trapezoidal cross section in which the outer surface of the front end portion 28 is inclined downward, and the protruding portion 2b protruding upward from the front portion of the main body 2a. In addition, the upper portion of the projecting portion 2b has a reverse funnel shape that is reduced in a plan view as it goes upward and is inclined forward in the longitudinal cross section, but the inner surface of the front end portion 28 is inclined upward. If so, the shape of the casing 2 may be another shape. For example, as shown in the side view of FIG. 8, the casing 102 includes a main body portion 102a having an inverted trapezoidal cross section in which the outer surface of the front end portion 28 is inclined downward, and upward from the front side portion of the main body portion 102a. The projecting portion 102b may be protruded, and the upper portion of the projecting portion 102b may have a reverse funnel shape that is symmetric in the longitudinal direction in the longitudinal section while reducing the plane section. As shown in the side view of FIG. 9, the casing 202 includes a main body 202a having an inverted trapezoidal cross section in which the outer surface of the front end portion 28 is inclined downward, and upward from the front portion of the main body 202a. The projecting portion 202b has a projecting portion 202b. The projecting portion 202b has a front end portion that is continuous with the front end portion 28 and is formed in a trapezoidal box shape in a side view. While the cross section is reduced, the cross section may have a reverse funnel shape inclined forward in the vertical cross section. An exhaust port 25 may be provided on the inclined front end surface of the upper portion of the projecting portion 202b. 8 and 9, the outer surface of the front end portion 28 of the main body portions 102a and 202a of the casings 102 and 202 is inclined downward, so that the inner surface of the front end portion 28 is inclined upward. It only has to be. As described above, since the inner surface of the front end portion 28 is inclined upward, the air flow in the casings 102 and 202 flows toward the projecting portions 102b and 202b and is discharged from the exhaust port 25. The turbulence of the air in 202 can be reduced, and the sorting accuracy can be effectively improved.

  In the above-described embodiment, the main body 2a of the casing 2 has the outer surface of the front end 28 inclined downward and the inner surface of the front end 28 inclined upward. As long as the inner surface is inclined upward, the shape of the outer surface may be another shape. Further, a plate-like body inclined upward may be provided inside the front end portion 28 of the casing 2, and an inner side surface inclined upward may be formed by the surface of the plate-like body.

  Moreover, in the said embodiment, although the rocking sorter 1 picked up the example which sorts mixed wastes, such as a construction system waste and a general waste, it picked up, The rocking sorter 1 is not limited to this, For example, sorting of shredder dust, sorting of containers and packaging plastics, sorting of trash such as bottles and cans, sorting of bulky trash, sorting of landfill materials, sorting of agricultural products such as cereals, etc. can do.

  In the above embodiment, the phase difference between adjacent oscillators 3 is set to 180 °. However, the phase difference is not limited to this. For example, the phase difference is 90 ° or 120 °, depending on the number and dimensions of the oscillators 3. The material is appropriately selected so that the object to be sorted can be efficiently executed. Furthermore, the oscillating body 3 may be prepared as several types of replaceable screens for each diameter of the through hole 31a, and may be appropriately selected so that sorting of the objects to be sorted can be performed efficiently.

  Moreover, in the said embodiment, while connecting the driven shaft 14 to the front side eccentric bearing unit 4, while connecting the drive shaft 15 to the rear side eccentric bearing unit 5, while connecting the drive shaft 15 to the front side eccentric bearing unit 4, The driven shaft 14 may be connected to the rear eccentric bearing unit 5.

  Moreover, in the said embodiment, the front side eccentric bearing unit 4 and the rear side eccentric bearing unit 5 which were provided in the rocking | fluctuation body 3 as a drive part which drives the rocking | fluctuation body 3 by giving a phase difference, and a rear side, The drive shaft 15 connected to the eccentric bearing unit 5, the driven shaft 14 connected to the front eccentric bearing unit 4, the coupling device 12 connected to the drive shaft 15, the speed reducer 10, and the motor 11 are provided. A thing using a crankshaft etc. may be used. Forms such as the power source of the drive unit and the transmission device can be selected as appropriate.

DESCRIPTION OF SYMBOLS 1 Swing sorter 2 Casing 2a Casing main-body part 2b Casing protrusion 3 Oscillating body 4 Front side eccentric bearing unit 5 Rear side eccentric bearing unit 6 1st ventilation part 7 2nd ventilation part 8 Air blowing part 9 Filter 10 Reduction gear DESCRIPTION OF SYMBOLS 11 Motor 12 Coupling device 14 Drive shaft 15 Drive shaft 22 Small-diameter object discharge port 23 Heavy-weight object discharge port 24 Light-weight object discharge port 25 Exhaust port 28 Front end part of casing 31 Oscillating body sieve plate 32 Oscillating body feed member 33 Oscillating body Width direction plate 91 Sorted object 92 Small-diameter article 93 Heavy article 94 Light article

Claims (8)

A plurality of strip-shaped oscillators having a through hole and a saw-shaped feeding member and arranged to be inclined with respect to a horizontal plane;
A drive unit that drives the plurality of oscillators to swing by giving a phase difference to each other;
A blower for supplying air from the rear to the front of the rocking body;
The rocking body is accommodated, and the input port of the sorting object located above the rocking body, the heavy material discharge port located below the rear part of the rocking body, and the lower part of the central part of the rocking body. A small-diameter object discharge port positioned, a light-weight object discharge port positioned below the front part of the rocking body, and an exhaust port positioned above the front part of the rocking body. A casing having at the front end ,
Of the inner side surface of the front end portion of the casing, a portion on the extension in the direction in which air is supplied from the blower portion is inclined upward . The swing sorter according to claim 1,
A swing sorter characterized in that an upwardly inclined plate-like body is provided inside the front end portion of the casing. The swing sorter according to claim 1,
The swing sorter characterized in that the casing has a projecting portion projecting upward at a front portion, and the exhaust port is provided in the projecting portion. The swing sorter according to claim 1,
A swing sorter characterized in that a second air blowing section for supplying air toward the front side is provided on the rear side of the inlet in the casing. The swing sorter according to claim 1,
A rocking sorter comprising a filter for collecting the lightweight material between the rocking body in the casing and the exhaust port. The swing sorter according to claim 1,
An oscillating sorter comprising a plate member for preventing the lightweight material from adhering to the bearing in front of a bearing that supports the oscillating body in the casing so as to oscillate. The swing sorter according to claim 1,
The rocking sorter characterized in that the rocking body has a hanging member extending downward from the front edge. In the rocking sorter according to claim 4 ,
The tilt angle of the rocking body is 13 ° or more and 30 ° or less, and the total amount of air supplied from the first air blowing unit and the second air blowing unit is 100 m ³ / min or more and 300 m ³ / min or less. A swing sorter characterized by being.

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