JP2009227463A - Sorter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem of a straight sorting tray line form that a plurality of sorting trays are articulated for transportation and each sort position is arranged along a straight sort tray line and as the fall discharge action of sort trays is executed at each sort position, an installation place floor area of the sort device is restricted to be long, a wide floor area is required, a moving distance of a worker becomes long, operation efficiency is deteriorated, and thus this form is not suitable for a small-size operation or a small workplace. <P>SOLUTION: A sort tray ring 2 for transporting the sort trays 1 for loading and transporting objects to be sorted and executing fall discharge at the sort positions in a rotatable manner in a circular form in a plane view is constituted. At a rotating region position of the sort tray ring 2, a metering device 4 for metering the weight of respective sort trays 1 for receiving and transporting objects to be sorted which are supplied from a supply device 3. A sort cam 5 for falling and rotating the sort trays 1 depending on the metering is arranged along an inner circumferential part of the sort tray ring 2. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a sorting device for vegetables, potatoes, fruits, fish and shellfish, and the like, and narrows the floor area of a sorting device such as a fruit selection field.

A configuration in which the sorting dish is driven so as to move in the front-rear straight line direction or reciprocally moved so that the objects to be sorted are sorted and discharged in a plurality of classes from the weight range to the lightweight range (see, for example, Patent Document 1). Are known.
Japanese Utility Model Publication No. 8-915 (first page, FIG. 1).

  In a linear sorting tray line configuration in which a large number of sorting trays are connected and conveyed, each sorting position is arranged along this linear sorting tray line, and the sorting tray overturns and discharges at each sorting position. Therefore, the floor surface form of the sorting apparatus is limited for a long time, the floor area is widened, the movement distance of the worker is increased, and the work efficiency is lowered. Is not suitable.

  The invention according to claim 1 comprises a sorting tray ring 2 that rotates and transports a sorting tray 1 that falls and discharges to a sorting position while carrying an object to be sorted in a circular shape in plan view. And a measuring device 4 for measuring the weight of each sorting tray 1 that receives and transports the sorting object supplied from the feeding device 3, and along the inner peripheral portion of the sorting tray ring 2, The sorting cam 5 is arranged to turn the sorting tray 1 over by this measurement. When the sorting plate ring 2 is rotated in a circular shape in plan view and an object to be sorted is placed on each sorting plate 1 by the supply device 3, the sorting plate 1 is weighed at the weighing device 4 position of the sorting plate ring 2, Based on this measurement, the sorting cam 5 at the sorting position is controlled to rotate, the sorting tray 1 conveyed to the sorting position is turned over, and the object to be sorted is discharged to the sorting position.

  According to a second aspect of the present invention, the sorting plate ring 2 has a plate ring 8 on an upper portion of a rack ring 7 in which a rack 6 is formed along a lower edge portion, and has an angle or T-shaped cross section. The ring base 9 is configured, and the sorting dish 1 is arranged along the ring base 9. The sorting tray 1 is arranged in a circular shape along the sorting tray ring 2 and is rotated and conveyed along the circumferential direction of the sorting tray ring 2. The large-diameter ring base 9 for mounting and supporting the sorting dish 1 is formed into a circular shape with a rack ring 7 and a plate ring 8 in an angle shape or a T-shaped cross section. It can be configured to be lightweight and can be easily and easily formed.

  According to a third aspect of the present invention, the sorting sprocket 10 that meshes and rotates the rack ring 7 is formed by winding a chain (13) having an appropriately wide chain pin 11 and a pin roller 12 between the sprocket disks 14 in a circular shape. It is characterized by doing. When the sorting sprocket 10 is rotated by the motor, the ring base 9 meshing with the pin roller 12 of the sorting sprocket 10 is rotated, and the sorting dish ring 2 is rotationally driven. The selection sprocket 10 that meshes with the rotation of the rack ring 7 at the upper part of the tangential position has a wide pin roller 12 around the chain pin 11, and the meshing portion between the rack ring 7 and the pin roller 12 is the width of the pin roller 12. The gears are transmitted while being displaced.

  The invention described in claim 4 is provided with a chute plate 18 that tilts and rotates toward the sorting tray 1 along a folding portion 17 formed between the front and rear bent mountain portions 16 of the wave belt 15 of the supply device 3. It is characterized by that. The wave belt 15 is rotated to convey the objects to be sorted placed on the front and rear curved valley portions 17. When each curved valley portion 17 is positioned on the outer peripheral portion of each sorting tray 1 of the sorting tray ring 2, the chute plate 18 portion at the bottom of the curved valley portion 17 is tilted and rotated toward the sorting tray 1 side. The curved valley portion 17 of the wave belt 15 is inclined together with the chute plate 18 so that the top portion of the curved mountain portion 16 on the sorting plate 1 side of the curved valley portion 17 is observed. Rises at an acute angle and pushes toward the chute plate 18 side at the bottom of the trough 17 from the front and back, and the object to be sorted is guided and supplied onto the sorting dish 1.

  According to the fifth aspect of the present invention, the sorting sprocket 10 meshed with the rack ring 7 of the sorting tray ring 2 and the supply sprocket 19 interlocked with the chain belt 20 of the feeding device 3 are connected to the bottom of the base 21. The single drive shaft 23 rotated by the side motor 22 is arranged at the outer end portion and integrally rotates. The sorting sprocket 10 and the supply sprocket 19 on the drive shaft 23 driven by the rotation of the motor 22 are integrally rotated. From the sorting sprocket 10, the sorting dish ring 2 engaged with the upper part is rotated in conjunction with the supply sprocket 19. The upper wave belt 15 is interlocked with the chain 20. For this reason, the objects to be sorted conveyed by the wave belt 15 are discharged and guided to the sorting dishes 1 at positions where they are viewed on the sorting dishes 1, and are fed along the sorting dish ring 2.

  According to the first aspect of the present invention, the sorting tray ring 2 on which a series of sorting trays 1 are arranged is formed in a circular shape and rotated. The weighing device 4 is arranged in the rotating part of the sorting dish ring 2 and the sorting cam 5 is arranged along the inner periphery of the rotating part of the sorting dish ring 2, and the sorting dish ring 2 having a relatively small diameter, Many sorting position areas can be arranged, it is difficult to interfere with work operations on the outer periphery, etc. As a compact form, the plane installation area occupied by the entire configuration can be reduced, and the narrow floor in the building It is suitable and efficient for sorting operations, and is easy and easy to handle and transport.

  In the invention according to claim 2, since the ring base 9 to which the sorting tray 1 is attached is constituted by the rack ring 7 and the plate ring 8 in an angled or T-shaped cross section, the rack ring 7 and the plate The rung 8 or the like is formed from a strip-like thin plate material or the like, has a highly rigid form, can be a lightweight, simple and inexpensive production configuration, and can reduce the driving load.

  In the invention according to claim 3, by forming the meshing portion of the rack ring 7 and the sorting sprocket 10 in the wide width of the chain pin 11 and the pin roller 12, the arc-shaped meshing width of the rack ring 7 can be displaced. The selection sprocket 10 has a configuration in which the chain 13 is wound in a circular shape between the sprocket discs 14, so that this configuration is simplified and it corresponds to the rotation diameter of the rack ring 7. The chain 13 having the chain pin 11 engagement width can be easily selected and set, and can be smoothly manufactured and manufactured at low cost.

  In the invention according to claim 4, the chute plate 18 of the curved valley portion 17 between the front and rear bent mountain portions 16 of the wave belt 15 is inclined toward the sorting plate 1 side, and the object to be sorted is supplied to the sorting plate 1. At the time of the discharge inclination of the curved valley portion 17 to the sorting dish 1, the front and rear curved mountain portions 16 are moved toward the shooter plate 18 inside the valley portion 17, and the interval between the side edges of the curved valley portion 17 is narrowed. Deeply, it becomes a substantially funnel-like shooter, and the side end portion of the chute plate 18 is accurately placed on the sorting plate 1 regardless of the position of the tip of the curved valley portion 17 of the wave belt 15 with respect to the sorting plate 1. In other words, it is possible to accurately supply the objects to be sorted received in the curved valley part 16 to the sorting dish 1.

  According to the fifth aspect of the present invention, each sorting dish ring 2, the wave belt 15 and the like are transmitted from a single drive shaft 23 driven by a motor 22 under the base 21, and further, a sorting sprocket on these drive shafts 23 is provided. 10 is meshed with each other, and the curved belt 16 of the wave belt 15 and the sorting plate 1 of the sorting plate ring 2 are rotated. The timing can be easily matched, and the object to be sorted can be accurately fed into the sorting dish 1 without leaking outside the sorting dish 1.

  Based on the illustrated example, a circular ring base 9 that rotates along a horizontal plane is provided on the base 21, and the supply device 3 is mounted on one side thereof. The center portion of the ring base 9 forms a hollow portion without a shaft, and is supported by the support roller 45 disposed on the table 28 of the base 21 and the guide roller 29 so as to be rotatable. The ring base 9 is rotated by a motor 22 mounted on the lower portion of the base 21, and the sorting tray ring 2 is configured to integrally rotate a large number of sorting trays 1 arranged along the ring bearer 9. A weighing device 4 that measures the weight of the sorting tray 1 along the rotating portion of the sorting tray ring 2, a sorting cam 5 that operates in response to an output signal from the controller, and a sorting item that is discharged from the sorting tray 1. A sorting shooter 25 and the like are arranged. Among these, a sorting shooter 25 is provided at each sorting position along the lower outer periphery of the sorting tray ring 2 to receive sorting items discharged from each sorting tray 1 and flow down to a container such as a cardboard case. Further, a support frame 26 protrudes from one side of the base 21, and the supply device 3 including the wave belt 15 is detachably attached along the outer peripheral tangential direction of the sorting tray ring 2, and the wave belt 15 is attached to the base plate 21. It is configured to rotate in conjunction with the motor 22 so as to convey the object to be sorted and supply it to each sorting tray 1.

  Here, this sorting device constitutes a sorting dish ring 2 that rotates and conveys the sorting dish 1 that falls and discharges to the sorting position while carrying the object to be sorted, and is circularly transported in a plan view. At the rotating portion position, a measuring device 4 for measuring the weight of each sorting tray 1 that receives and transports the sorting object supplied from the feeding device 3 is provided, and along the inner peripheral portion of the sorting tray ring 2, The sorting cam 5 is arranged to turn the sorting tray 1 over by this measurement. When the object to be sorted is placed on each sorting tray 1 by the supply device 3 while rotating the sorting tray ring 2 in a circular shape in plan view, the sorting tray 1 is weighed on the weighing device 4 of the sorting tray ring 2. Based on this measurement, the sorting cam 5 at the sorting position is controlled, the sorting tray 1 conveyed to the sorting position is turned over, and the object to be sorted is discharged to the sorting position.

  The sorting dish ring 2 has a plate ring 8 on the upper part of the rack ring 7 formed with the rack 6 along the lower edge portion, and constitutes a ring base 9 having an angle or T-shaped cross section. The sorting dish 1 is arranged along the ring base 9. The sorting tray 1 is arranged in a circle along the sorting tray ring 2 and is rotated and conveyed along the direction of the sorting tray ring 2. The large-diameter ring base 9 for mounting and supporting the sorting tray 1 is formed into a circular shape with an angle shape or a T-shaped cross-section by the lag ring 7 and the plate ring 8, so that it can be easily made from a strip-like thin plate material or the like. It can be configured to be lightweight and can be easily and easily formed.

  Further, the selection sprocket 10 that meshes and rotates the lag ring 7 is characterized in that a chain 13 having a suitably wide chain pin 11 and a pin roller 12 is wound between the sprocket disks 14 in a circular shape. When the sorting sprocket 10 is rotated by the motor, the ring base 9 meshing with the pin roller 12 of the sorting sprocket 10 is rotated, and the sorting dish ring 2 is rotationally driven. The selection sprocket 10 that meshes with the rotation of the rack ring 7 at the upper part of the tangential position has a wide pin roller 12 around the chain pin 11, and the meshing portion between the rack ring 7 and the pin roller 12 is the width of the pin roller 12. The gears are transmitted while being displaced.

  In addition, a chute plate 18 that is inclined and rotated toward the sorting tray 1 is provided along a bent portion 17 formed between the front and rear bent mountain portions 16 of the wave belt 15 of the feeding device 3. The wave belt 15 is rotated to convey the objects to be sorted placed on the front and rear curved valley portions 17. When each curved valley portion 17 is positioned on the outer peripheral portion of each sorting plate 1 of the sorting plate ring 2, the chute plate 18 portion at the bottom of the curved valley portion 17 is tilted and rotated toward the sorting plate 1, and this chute plate 18. And the curved valley portion 17 of the wave belt 15 is inclined together with the chute plate 18 so that the curved mountain portion 16 of the curved valley portion 17 on the sorting plate 1 side is inclined. The top of the plate rises at an acute angle and is pushed toward the chute plate 18 at the bottom of the valley 17 from the front and back, and the object to be sorted is guided and supplied onto the sorting tray 1.

  Further, the sorting sprocket 10 meshed with the lag ring 7 of the sorting tray ring 2 and the supply sprocket 19 that interlocks with the chain belt 15 of the feeding device 3 by the chain 20 are rotated by a motor 22 below the base 21. It is characterized by being arranged at the outer end of the single drive shaft 23 and rotating integrally. The sorting sprocket 10 and the supply sprocket 19 are integrally rotated along a drive shaft 23 driven by the rotation of the motor 22, and the sorting plate ring 2 that meshes with the sorting sprocket 10 is rotated in conjunction with the supply sprocket 21. The upper wave belt 15 is linked to the chain 20. For this reason, the objects to be sorted conveyed by the wave belt 15 are discharged and guided to the sorting dishes 1 at positions where they are viewed on the sorting dishes 1, and are fed along the sorting dish ring 2.

  The ring base 9 of the sorting plate ring 2 is made of a comparatively thin sheet metal, and the rack ring 7 is formed in a cylindrical shape by forming a rack 6 on the lower edge of the belt plate. By forming the plate ring 8 integrally in a horizontal direction perpendicular to the angle, the corner portion on the lower outer periphery of the ring base 9 is supported by the support roller 45 so as to be rotatable in a horizontal manner. A guide ring 27 is formed on the inner peripheral portion of the rack ring 7, and the guide ring 27 is fitted and guided in a roller groove 30 of a guide roller 29 that is rotatably supported on a table 28 on the base 21. . The guide rollers 29 are arranged at appropriate intervals along the rotation inner periphery of the guide ring 27 to smoothly rotate the ring base 9.

  The plate ring 8 of the ring base 9 projects to the outer side of the rack ring 7 and attaches and supports a large number of sorting dishes 1 on the upper surface. The sorting tray 1 has a support case 31 and is attached to the upper surface of the plate ring 8 by a set bolt 32. The support case 31 is provided with a support metal 32 that can be moved up and down via a parallel link (not shown), and the support plate 33 that supports the sorting tray 1 with respect to the support metal 32 can be rotated to the left and right around the support shaft 40. To support. A guide pin (roller) 34 is provided on the upper portion of the support metal 32 and is fitted into a guide hole 35 formed in the support plate 33 so as to guide and restrict the lateral rotation region of the support plate 33. A locking recess 36 is formed at the standing rotation end of the guide hole 35, and the locking recess 36 is engaged with the guide pin 34, thereby maintaining the support plate 33 in the neutral position and supporting metal 32. The height region H of the guide hole 35 is configured to be movable up and down. The sorting tray 1 is supported on the outer side of the support plate 33 by the falling pin 37 at the outer bottom. Further, sliders 38 and 39 are formed at both left and right ends of the support plate 33. In this case, the slider 39 formed on the inside is pushed up by the rotation of the sorting cam 5, and the support plate 33 is guided to rotate outward around the support shaft 40. Further, sensor elements 41 and 42 are provided at both left and right ends of the support case 31, while detecting the passage of each sensor element 41 while facing the outside of the rotational movement locus of the sensor element 41. A count sensor 43 for calculation is provided, and a base point sensor 44 that determines the reference point position is provided facing the outside of the sensor element 42. Each of the sensors 43 and 44 is configured to be able to designate and operate the sorting cam 5 at the sorting fall position of the sorting dish 1 weighed by the weighing device 4.

  The weighing device 4 has left and right slide guides 46 and 47 that guide the sliding of the left and right sliders 38 and 39 of the support plate 33 and a load cell 48 that measures the weight received by the slide guides 46 and 47. Thus, the weight of each sorting tray 1 on which unsorted items are placed can be weighed. A weighing frame 49 is provided on the lower side of the ring base 9, a load cell 48 is provided immediately below the ring base 9 of the weighing frame 49, and slide guides are provided at both ends of the arm 50 projecting left and right outward from the load cell 48. 46 and 47 are attached and supported. Since the load cell 48, the slide guides 46 and 47, the measurement frame 49, and the like are arranged at the inner and outer peripheral portions from the lower side of the ring base 9, the sorting tray 1, the support plate 33, and the like are rotated and conveyed. It is configured in a form that does not get in the way. When each sorting tray 1 is conveyed along the ring base 9, when it reaches just above the load cell 48, the height H of the guide hole 35 with respect to the guide pin 34 can be moved up and down. The left and right sliders 38 and 39 are slidably supported on the upper surfaces of the slide guides 46 and 47, and the weight measurement by the load cell 48 is performed.

  The sorting cam 5 is disposed along the inner peripheral side portion of the ring base 9 so as to face each sorting position. The sorting cam 5 rotated by a certain angle by the rotary solenoid 51 in the solenoid case 52 is formed in an inclined surface ascending in the conveying direction of the sorting tray 1 so as to scoop up the outer slider 39 so that the support plate 33 is moved up. It rotates outward around the support shaft 40. Each of the sorting cams 5 is actuated by a solenoid output from the controller upon detection of the count sensor 43, the load cell 48, etc., and the sorting tray 1 is turned over to the sorting position to move the sorting object to the sorting shooter 25. Discharge.

  The sorting sprocket 10 is fixed at a position where the drive shaft 23 rotated by the motor 22 intersects the rack ring 7 and meshes with the lower side of the rack 6. This sorting sprocket 10 meshes with the rack 6 a pin roller 12 portion that is rotatably fitted to the chain pin 11, and rotationally drives the ring base 9. A chain 13 is sandwiched between the left and right sprocket disks 14 so that the chain 13 is wound in a circle. Both ends of the chain pin 11 are fitted into the pin holes 53 of the sprocket disk 14 to stabilize the rotation diameter of the chain pin 11 at a constant level. The boss of the disk 14 is inserted into the drive shaft 23 to rotate integrally therewith, and the drive shaft 23 extends outward through a shaft coupling 54. Since the rack ring meshing with the sorting sprocket 10 has a large circular locus, the width of the chain 13 along the direction of the chain pin 11 and the pin roller drive shaft 23 of the sprocket 10 is appropriately set to be larger than the arcuate width of the meshing portion of the rack 6. Widely formed.

  The drive shaft 23 is mounted along the support frame 26 of the base 21 in the radial direction at a position below the sorting dish ring 2, and a supply sprocket 19 is provided on the outer end of the drive shaft 23, The chain 20 is linked to the sprocket shaft 55 of the upper wave belt 15 and interlocked.

  The wave belt 15 is formed along the outer periphery of the conveyor chain 57 spanned between the pair of front and rear sprocket shafts 55 and 56, and the bottom of each curved valley portion 17 of the wave belt 15, and the chute plate 18 portion along the valley portion 17. Then, it is fixed so as to be held with respect to the chain bracket 62 and is rotated integrally with the conveyor chain 57. The top portion 58 of each bent mountain portion 16 of the wave belt 15 is formed so as to be easily bent by forming a thin belt thickness, and the bottom portion of the bent valley portion 17 fixes the chute plate 18 to form a constant groove width. It is configured. Further, the wave belt 15 can be formed by alternately forming the curved ridges 16 and the valleys 17 and rotating in a wave-shaped state, and can carry the object to be sorted on each of the curved valleys 17. . Guide plates 59 and 60 are provided on the left and right sides of the wave belt 15, and a slide rail 61 is provided along the lower side. The slide rail 61 slides and guides the guide rollers 64 below each chute plate of the curved valley portion 17 of the wave belt 15, and is inclined upward at the conveyance end portion so that the bottom portion of the wave belt 15 rises upward. Push up. The chute plate 18 is supported at the end of the chain bracket 62 on the side of the sorting pan 1 so as to be able to swing up and down around the pin 63, and the guide rail 64 is pushed up by the slide rail 61, thereby the curved trough portion 17 is formed. The object to be sorted is supplied to the sorting dish 1 with a large inclination toward the sorting dish 1 side. Further, the chute plate 18 has a side end portion on the side of the sorting plate 1 inclined at an appropriate angle on the curved trough portion 17, and the chute plate 18 is chute in a state where the curved trough portion 17 is turned upright around the pin 63. The side end of the plate 18 can be seen on the sorting tray 1 and the object to be sorted can be discharged to the sorting tray 1.

  A cover disk 65 is supported on the upper end portion of the sorting tray ring 2 on the base 21 from the base 21 via a support bracket 24 arranged on the inner side of the sorting tray ring 2 so as to open and close. It is possible. When the supply device 3 is removed from the base 21 on the sorting ring 2 side, the drive shaft 23 is separated by the shaft coupling 54 portion.

  When the drive shaft 23 is rotated by the motor 22, the ring base 9 and the wave belt 15 are rotated by the rotation of the sorting sprocket 10 and the supply sprocket 19. The objects to be sorted are supplied to the curved valley portions 17 of the wave belt 15 and conveyed. At the end of the belt 15, the guide roller 64 is pushed up by the guide rail 61, the curved valley portion 17 is rotated upward around the pin 63, is inclined toward the sorting dish 1, and the bottom chute The side end portion of the plate 18 looks into the upper part of the sorting tray 1. At this time, the bottom portion of the curved valley portion 17 is pushed up and flattened widely, and the lower end portion of the curved mountain portion 16 is formed in a sharp shape so that the width of the curved valley portion 17 is narrowed. In this way, the object to be sorted is accurately supplied to the sorting dish 1. Further, since the wave belt 15 and the sorting tray ring 2 are transmitted to the rack ring 7 and the chains 20 and 57 by the integral rotation of the sprockets 10 and 19 on the same drive shaft 23, It is easy to make the timings of the conveyance transmission coincide with each other, and it is possible to make it difficult to cause this timing shift.

  The object to be sorted supplied to the sorting tray ring 2 in this way is weighed when the sorting tray 1 is transported onto the weighing device 4, and the sorting discharge position is designated. When the sorting tray 1 is conveyed to the designated sorting position, the support plate 33 is rotated outward by the rotation of the sorting cam 5, and the sorting tray 1 is moved outwardly around the fall pin 37 to the support plate 33. By being turned over, the object to be sorted is discharged to the sorting shooter 25 at the lower outside.

  The top view and side view of a sorting device.   The front sectional view.   The enlarged plan view of a part of the sorting dish ring.   The enlarged front view of the supply apparatus part.   The expanded sectional view of the sorting tray ring part.   The top view and side view of the ring base part.   The side view and top view of a selection sprocket part.   The enlarged side view of a supply apparatus part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sorting plate 2 Sorting plate ring 3 Feeding device 4 Weighing device 5 Sorting cam 6 Rack 7 Rack ring 8 Plate ring 9 Ring base 10 Sorting sprocket 11 Chain pin 12 Pin roller 13 Chain 14 Sprocket disk 15 Wave belt 16 Curved mountain portion 17 Curved valley portion 18 Chute plate 19 Supply sprocket 20 Chain 21 Base 22 Motor 23 Drive shaft

Claims (5)

  A sorting tray ring (2) that rotates and transports the sorting tray (1) that falls and discharges to the sorting position while carrying the object to be sorted is formed into a circular shape in plan view, and a rotating portion of the sorting tray ring (2) At the position, a weighing device (4) for measuring the weight of each sorting tray (1) that receives and transports the sorting object supplied from the feeding device (3) is provided, and the inner circumference of the sorting tray ring (2) A sorting device (5) is disposed along the section, the sorting cam (5) for rotating the sorting tray (1) by this measurement.   The sorting plate ring (2) has a plate ring (8) on top of a rack ring (7) formed with a rack (6) along the lower edge, and has a ring base with an angle or T-shaped cross section. The sorting apparatus according to claim 1, wherein (9) is configured, and the sorting tray (1) is arranged along the ring base (9).   The selection sprocket (10) that meshes and rotates the rack ring (7) has a chain pin (11) having a suitable width and a chain (13) having a pin roller (12) wound in a circular shape between the sprocket disks (14). The sorting apparatus according to claim 1, wherein the sorting apparatus is configured.   A chute plate (18) that tilts and rotates toward the sorting plate (1) along a curved valley (17) formed between the front and rear curved peaks (16) of the wave belt (15) of the feeding device (3). The sorting apparatus according to claim 1, 2, or 3.   A sorting sprocket (10) meshing with the rack ring (7) of the sorting plate ring (2), and a supply sprocket (19) interlocking with the chain belt (15) of the feeding device (3) (20). A single drive shaft (23) rotated by a motor (22) below the base (21) is arranged at the outer end portion and integrally rotates. Or the sorting apparatus according to 4.

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