JP6842120B2 - Rotary sieve device - Google Patents

Description

The present invention relates to a rotary sieving device, and more particularly to a rotary sieving device capable of selecting the size of an object to be sorted.

The following Patent Document 1 discloses a soybean sorting apparatus. In this soybean sorting device, the soybeans to be sorted are put into one end of the porous sorting rotary cylinder from the charging hopper, and the porous sorting rotary cylinder is rotated to move the soybeans to be sorted to the other end side of the porous sorting rotary cylinder. In the soybean sorting apparatus, non-standard soybeans can be sieved from the porous surface of the porous sorting rotary cylinder in the process of moving the soybeans to be sorted.

Japanese Unexamined Patent Publication No. 11-276995

By the way, as an object to be sorted, peanuts (Arachis hypogaea) having shells attached to fruits (peanuts or peanuts) are manually sorted in size. Peanut shells are rugged, reticulated pods with enlarged ovaries. The shell has an elongated shape, and a part of the pod called a mustache protrudes from the shell.

When trying to sort the size of peanuts by using or improving the above soybean sorting device and using a perforated sorting rotary cylinder that sifts out nonstandard soybeans, a peanut-shaped shell or whiskers get entangled in the pores of the porous surface. It is difficult to sort out the size of peanuts. Therefore, it has been desired to develop a sieving device having a simple structure for selecting the size of peanuts.

In consideration of the above facts, the present invention provides a rotary sieving device for easily selecting the size of an object to be sorted having a shape like a bowl.

The rotary sieving apparatus according to the first embodiment of the present invention is formed in a tubular shape in which the object to be sorted is charged from one end side in the axial direction and the object to be sorted is conveyed to the other end side in the axial direction, and is constant. A sieve unit having a plurality of sieves in which sorting holes for sorting objects smaller than the size of the above are arranged in the radial direction, a support unit that rotatably supports the sieve unit around a rotation axis, and a sieve. It includes a vibration unit that vibrates the sieve unit during rotation around the rotation axis of the unit.

In the rotary sieve device according to the second embodiment of the present invention, in the rotary sieve device according to the first embodiment, the sorting hole has a direction parallel to the axial direction of the sieve unit as a length direction and a sieve. It is an elongated hole with the circumferential direction as the width direction.

In the rotary sieving apparatus according to the third embodiment of the present invention, in the rotary sieving apparatus according to the second embodiment, the sieve unit is loaded with the object to be sorted from one end side in the axial direction and sorted to the other end side in the axial direction. An object is transported, and another sieve formed in a tubular shape having a smaller radial size than the sieve is provided inside the sieve in the radial direction coaxially with the sieve, and the other sieve is penetrated in the radial direction. A plurality of other sorting holes in which the size of the elongated hole is set to be larger than that of the sorting hole in the width direction are arranged.

In the rotary sieve device according to the fourth embodiment of the present invention, in the rotary sieve device according to the third embodiment, the support unit is parallel to the rotation axis of the sieve unit under the sieve unit and the sieve unit. Includes a pair of rotating shafts arranged on both sides of the sieve, and rollers provided at one end and the other end of the rotating shaft, which are in contact with the outer peripheral surface of the sieve and rotate the sieve unit around the rotating shaft. The sieve unit is placed on a roller.

The rotary sieving apparatus according to the fifth embodiment of the present invention includes a drive source connected to at least one of a pair of rotary shafts and a control unit for controlling the rotation of the drive source in the rotary sieving apparatus according to the fourth embodiment. A drive unit including an operation unit for operating the control unit and a drive unit including the control unit is further provided.

In the rotary sieve device according to the sixth embodiment of the present invention, in the rotary sieve device according to the fourth embodiment or the fifth embodiment, the vibration unit is arranged in a part of a portion of the outer peripheral surface of the sieve where the rollers come into contact. It is configured to include a vibration generating member that protrudes radially outward from the outer peripheral surface of the sieve, and gives at least radial vibration to the sieve unit.

In the rotary sieve device according to the seventh embodiment of the present invention, in the rotary sieve device according to the sixth embodiment, the vibration generating member increases the separation distance between the outer peripheral surface of the sieve and the roller as the sieve advances in the rotation direction. The sieve unit is composed of an inclined portion to be formed and a stepped portion in which a roller is brought into contact with the outer peripheral surface of the sieve from the most distant position in a length shorter than the length of the inclined portion in the rotation direction of the sieve. When viewed from the axial direction of the sieve, the sieve is formed in a substantially triangular shape with the outer peripheral surface as the base and the inclined portion and the stepped portion as the inclined sides.

In the rotary sieve device according to the eighth embodiment of the present invention, the rotary sieve device according to the sixth embodiment or the seventh embodiment further includes spokes for connecting the sieve and another sieve, and the vibration generating member is a sieve. It is arranged in the vicinity of the connecting portion between the spoke and the spoke.

In the rotary sieve device according to the ninth embodiment of the present invention, in the rotary sieve device according to any one of the sixth embodiment to the eighth embodiment, among the rollers provided at one end of the rotary shaft, the sieve unit The first roller that comes into contact with the outer peripheral surface of the sieve that moves from the upper side to the lower side, and the second roller that comes into contact with the outer peripheral surface of the sieve that moves from the lower side to the upper side due to the rotation of the sieve unit is the shaft of the sieve unit. The vibration generating member is arranged at a position deviated from the direction, and is arranged around the outer periphery of the sieve with which the first roller contacts.

In the rotary sieve device according to the tenth embodiment of the present invention, in the rotary sieve device according to any one of the first to ninth embodiments, the object to be sorted is arranged on one end side of the sieve unit. It also has a hopper to put in.

In the rotary sieve device according to the eleventh embodiment of the present invention, in the rotary sieve device according to any one of the first to tenth embodiments, the support unit contacts the other end in the axial direction of the sieve unit. Further, a stopper for limiting the movement of the sieve unit to the other end side in the axial direction is further provided, and the stopper is configured as a driven roller that rotates in accordance with the rotation of the sieve unit.

The rotary sieve device according to the twelfth embodiment of the present invention is the rotary sieve device according to any one of the first to eleventh embodiments, and is disposed on the other end side of the sieve unit and is selected. It also has an accumulation unit for accumulating the objects to be sorted.

The rotary sieving device according to the thirteenth embodiment of the present invention is the rotary sieving device according to any one of the first to twelfth embodiments. It further includes an exclusion unit for removing objects to be sorted that do not meet a certain standard.

In the rotary sieve device according to the 14th embodiment of the present invention, in the rotary sieve device according to the 13th embodiment, an exclusion unit is arranged between one end in the axial direction of the sieve unit and the transport unit.

According to the present invention, it is possible to provide a rotary sieving device for easily selecting the size of an object to be sorted having a shape of a bowl.

FIG. 1 is a side view of the rotary sieving apparatus according to the first embodiment of the present invention as viewed from the side direction. FIG. 2 is a front view of the rotary sieving apparatus shown in FIG. 1 as viewed from the axially leading end side (axially opposite end side) of the sieving unit. FIG. 3 is a perspective view of the sieve unit and the support unit of the rotary sieve apparatus shown in FIGS. 1 and 2 as viewed from the side surface direction and slightly above the tip side in the axial direction. FIG. 4 is a perspective view of the support unit shown in FIG. FIG. 5 is a slightly enlarged perspective view of the sieve unit shown in FIG. FIG. 6A is an enlarged front view of the sieve unit shown in FIG. 5 as viewed from the tip side in the axial direction, and FIG. 6B is a further enlarged view of the vibration generating member of the vibration unit arranged in the sieve unit. It is an enlarged front view of the main part shown. FIG. 7 is a perspective view of a transport unit and an exclusion unit of the rotary sieve device shown in FIG. FIG. 8 is a side view of the rotary sieving device according to the second embodiment of the present invention, the transport unit and the exclusion unit of the rotary sieving device, as viewed from the side direction. FIG. 9 is a plan view of the rotary sieve device shown in FIG. FIG. 10 is a front view of the rotary sieving apparatus shown in FIGS. 8 and 9 as viewed from the tip side in the axial direction. FIG. 11 is a rear view of the rotary sieving apparatus shown in FIGS. 8 and 9 as viewed from the rear end side in the axial direction. FIG. 12 is an enlarged side view of the sieve unit of the rotary sieve apparatus shown in FIGS. 8 and 9 as viewed from the side direction. FIG. 13 is an enlarged cross-sectional view of the sieve unit shown in FIG. 12 (enlarged cross-sectional view cut along the DD line shown in FIG. 14). FIG. 14 is an enlarged front view of the sieve unit shown in FIG. FIG. 15 is an enlarged plan view of the sieve unit shown in FIG.

[First Embodiment]
Hereinafter, the rotary sieve device 1 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 7. Here, in the drawings, the arrows X, Y, and Z, which are appropriately shown, indicate the front direction, the lateral direction, and the upward direction of the rotary sieve device 1, respectively. In the following description, when the front-back direction, the left-right direction, or the up-down direction is used, the front-back, left-right, or up-down of the rotary sieve device 1 shall be indicated unless otherwise specified. For convenience of explanation of the embodiment, the direction is shown, and the rotary sieve device and each component according to the embodiment are not limited to the above direction.

(Overall configuration of rotary sieve device 1)
As shown in FIGS. 1 and 2, the rotary sieving device 1 is a device that sorts foodstuffs as "objects to be sorted" into different sizes and collects the sorted foodstuffs for each size. In the present embodiment, peanuts (all peanuts of different sizes may be generically described with a reference numeral "A") are used as the "object to be sorted". "Peanut A" is a peanut with a shell. That is, the rotary sieving device 1 is selected into three types of large-sized peanuts A1, medium-sized peanuts A2, and small-sized peanuts A3, and the selected large-sized peanuts A1, medium-sized peanuts A2, and small-sized peanuts A3. The size of peanuts A3 is collected for each size.
Further, the rotary sieve device 1 according to the present embodiment can be applied to any of "dried peanuts" dried after harvesting, "raw peanuts" undried after harvesting, and "boiled peanuts" boiled. However, it is especially effective for sorting "dried peanuts".
The size of the peanut A may be selected into two or four or more types.

The rotary sieve device 1 gives vibration to the sieve unit 2, the support unit 3 that rotatably supports the sieve unit 2 around the rotation axis C, and the sieve unit 2 during the rotation of the sieve unit 2 around the rotation axis C. It is configured to include a vibration unit 9. Further, the rotary sieve device 1 includes a gantry 4.

Further, the rotary sieve device 1 is provided with a hopper (supply unit) 5 for supplying the peanut A to the sieve unit 2.
Further, the rotary sieve device 1 is provided with an accumulating unit 6 for accumulating the peanuts A selected by the sieving unit 2 and a guide unit 7 for guiding the peanuts A from the sieving unit 2 to the accumulating unit 6. The accumulation unit 6 has a total of three, an accumulation container 61 for accumulating large-sized peanuts A1, an accumulation container 62 for accumulating medium-sized peanuts A2, and an accumulation container 63 for accumulating small-sized peanuts A3. ing. The guide unit 7 is integrated from the sieve unit 2 and the guide member 71 that guides the large-sized peanut A1 from the sieve unit 2 to the accumulation container 61, the guide member 72 that guides the medium-sized peanut A2 from the sieve unit 2 to the accumulation container 62, and the sieve unit 2. It has a total of three with a guide member 73 that guides a small-sized peanut A3 to the container 63.
Hereinafter, each configuration of the rotary sieve device 1 will be described.

(Structure of gantry 4)
As shown in FIGS. 1 to 4 and 7, the gantry 4 constitutes the lower part of the rotary sieve device 1. The gantry 4 includes a first gantry 4A that supports the support unit 3 and a second gantry 4B that supports the hopper 5 and the transport unit 8.
Here, the hopper 5 and the transport unit 8 shown in FIGS. 1 to 4 are used for supplying and transporting the peanut A to the sieve unit 2. On the other hand, the hopper 5 and the transport unit 8 shown in FIG. 7 are used to eliminate "non-standard peanut A4" that does not meet a certain standard in the process before selecting the size of the peanut A. "Non-standard peanuts A4" are peanuts that do not contain fruit in their shells, peanuts whose shells are damaged, and peanuts that are even smaller in size than the small-sized peanuts A3, and have no commercial value. Or, it is used to mean peanuts that are difficult to provide as a product. The configuration for excluding non-standard peanut A4 will be described later.

As shown in FIGS. 1 to 4, the first gantry 4A has a pair of left and right main frames 41, and the main frames 41 are formed in a substantially rectangular columnar shape extending in the front-rear direction. A plurality of cross frames 42 extending in the left-right direction are bridged over the main frame 41, and the pair of main frames 41 are connected by the cross frames 42. Further, leg portions 43 are provided at the front end portion and the rear end portion of the main frame 41. The leg portion 43 is connected to the front end portion or the rear end portion of the main frame 41, and extends in the vertical direction with reference to the connecting portion. The lower end of the leg portion 43 is placed on the installation surface on which the rotary sieve device 1 is installed.

As shown in FIGS. 1 and 7, the second gantry 4B is arranged on the rear side of the first gantry 4A and is configured to be movable independently of the first gantry 4A. The second gantry 4B has a pair of left and right main frames 45, and the main frames 45 are formed in a substantially rectangular columnar shape extending in the front-rear direction in the state shown in FIG. A plurality of cross frames 46 extending in the left-right direction are bridged over the middle portion in the front-rear direction of the main frame 45, and the pair of main frames 45 are connected by the cross frames 46. Further, leg portions 47 are provided at the front end portion and the rear end portion of the main frame 45. The leg portion 47 is connected to the front end portion or the rear end portion of the main frame 45, and extends in the vertical direction with reference to the connecting portion. The lower end of the leg portion 47 is placed on the installation surface on which the rotary sieve device 1 is installed.

Further, in the second frame 4B, a total of four support columns 48 are erected on the upper side of the cross frame 46. A transport unit 8 and a hopper 5 arranged above the transport unit 8 are supported on the support pillar 48.

The hopper 5 is formed in a shape that expands toward the upper side, and is formed in a shape that has substantially the same opening diameter toward the lower side as the inverted pyramid-shaped input portion 51 having an open upper end. , A rectangular tubular discharge portion 52 having an open lower end is included. Peanuts A having a plurality of sizes before being sorted are charged into the charging section 51 in a mixed state. The introduced peanut A is discharged to the transport unit 8 through the discharge unit 52. That is, the hopper 5 is used as a supply source for supplying the peanut A before being sorted to the transport unit 8, and is also used as a storage tank for temporarily storing the excessively supplied peanut A.

Further, as shown in FIG. 7, on the front wall of the discharge unit 52, the peanut A is transported from the hopper 5 to the sieve unit 2 by the transport unit 8, and the supply opening 52A formed in a rectangular shape when viewed from the front is provided. It is formed. At the supply opening 52A, the supply amount of peanut A can be adjusted.
Further, a smoothing lid 53 is provided in the discharge portion 52 so as to cover the supply opening 52A. The break-in lid 53 is formed in a rectangular shape similar to the shape of the supply opening 52A, and is formed in a size slightly larger than the shape of the supply opening 52A, and is made of rubber or resin and has a flexible sheet-like member. Is formed by. The upper end of the break-in lid 53 is attached to the upper edge portion of the supply opening 52A, and the lower end side of the break-in lid 53 is freely deformed to the front side each time it hits the peanut A transported by the transport unit 8 and hits. When is gone, it returns to its original shape.
In the present embodiment, a plurality of vertical cuts 53A extending from the lower end side to the upper and lower intermediate portions are formed in the lower portion of the break-in lid 53 in the horizontal direction. By providing the notch 53A, the degree of freedom of deformation of the break-in lid 53 is improved.
The leveling lid 53 has a function of smoothing a large amount of peanuts A supplied from the hopper 5 and overlapping on the transport unit 8 to average the amount of peanuts A transported by the transport unit 8.

As shown in FIG. 7, the conveyor unit 8 includes a conveyor roller 8A rotatably arranged on the front side, a conveyor roller 8B rotatably arranged on the rear side, and a conveyor roller 8A and a conveyor roller 8B. It is configured to include an endless belt 8C hung around the and. Further, the transport unit 8 includes a drive source 81 in which the drive shaft is connected to the rotation shaft of, for example, the conveyor roller 8B, a control unit 82 that controls the drive of the drive source 81, and the control unit 82. It is provided with an operation unit 83 to be operated. For example, an electric motor can be used as the drive source 81.
Further, in FIG. 7, the drive source 81 and the control unit 82 are shown simplified as block notation, but are actually arranged in an empty space below the endless belt 8C. Therefore, the entire structure including the second frame 4B, the transport unit 8 and the hopper 5 is miniaturized.

(Structure of support unit 3)
As shown in FIGS. 1, 3 and 4, the support unit 3 is arranged on the upper part of the first gantry 4A and is configured to include a mechanism for rotatably supporting the sieve unit 2 described in detail later. There is. The support unit 3 includes a rotation mechanism 30 for rotating the sieve unit 2 around the rotation axis C of the sieve unit 2 as a main component. Here, the axial direction of the rotation axis C substantially coincides with the arrow X direction.

In particular, as shown in FIG. 4, the rotation mechanism 30 includes a pair of rotation shafts 31 and 32 and rollers 311 and 312 and 321 and 222.
As shown in FIG. 3, the pair of rotating shafts 31 and 32 are arranged on the lower side of the sieve unit 2, parallel to the rotating shaft C of the sieve unit 2, and arranged on both sides of the sieve unit 2. It is installed. In the present embodiment, the rotating shaft 31 arranged on the left side (right side with respect to the transporting direction during sorting of peanut A) in FIG. 4 is used as the driving rotating shaft, and the right side (left side with respect to the transporting direction). ) Is used as the driven rotating shaft 32.

In FIG. 4, a bearing 332 is provided on the upper side of the cross frame 42 on the front side of the support unit 3 via a support member 331, and the front end portion of the rotating shaft 31 is rotatably supported by the bearing 332. A bearing 334 is provided on the upper side of the cross frame 42 on the rear side of the support unit 3 via a support member 333, and the rear end portion of the rotating shaft 31 is rotatably supported by the bearing 334.
Similarly, a bearing 336 is provided on the upper side of the cross frame 42 on the front side of the support unit 3 via a support member 335, and the front end portion of the rotating shaft 32 is rotatably supported by the bearing 336. A bearing 338 is provided on the upper side of the cross frame 42 on the rear side of the support unit 3 via a support member 337, and the rear end portion of the rotating shaft 32 is rotatably supported by the bearing 338.
As bearings 332, 334, 336, 338, for example, bearings or sliding bearings can be practically used.

In the present embodiment, the positions of the bearings 334 and 338 provided on the rear cross frame 42 in the height direction with respect to the positions of the bearings 332 and 336 provided on the front cross frame 42 in the height direction. Is set high. With this configuration, the front side of the pair of rotating shafts 31 and 32 is configured to be lowered downward, and the front side of the sieve unit 2, which will be described later, is configured to be inclined downward. The rotation axis C of the sieve unit 2 is similarly inclined.
Due to the configuration in which the sieve unit 2 is tilted, the peanut A can easily move in the transport direction by its own weight during sorting in the sieve unit 2.

In the present embodiment, the sieve unit 2 is tilted as a fixed structure, but the rotary sieve device 1 adjusts the tilt angle of the sieve unit 2 to the front end portions or the rear end portions of the rotary shafts 31 and 32. An inclination adjusting mechanism may be provided.
For example, it includes a male screw erected in the height direction from the upper side of the main frame 41 or the cross frame 42 of the first gantry 4A, and a female screw screwed into the male screw and connected to the support member 333 and the support member 337. An inclination adjusting mechanism composed of can be used.

The roller 311 is a front end portion of the rotating shaft 31, and is attached here further to the front side of the bearing 332. The roller 312 is a rear end portion of the rotating shaft 31, and is attached to the front side of the bearing 334.
Similarly, the roller 321 is the front end portion of the rotating shaft 32 and is attached further to the front side of the bearing 336. The roller 322 is a rear end portion of the rotating shaft 32 and is attached to the front side of the bearing 338.
Each of the rollers 311, 312, 321 and 322 has the same structure, although the structure is not particularly limited.

Although detailed description with reference numerals will be omitted, for example, the roller 311 or the like has a shaft hole fitted to the rotating shaft 31 or 32, and is a metal or resin core formed in a disk shape. It is composed of a material and a covering material made of rubber or resin that coats the core material along the circumference of the core material. In particular, since the covering material is made of rubber or resin, the rotary sieve device 1 can increase the frictional force and improve the rotational force transmitted from the rollers 311 and 312 to the sieve unit 2. Further, it is possible to suppress the generation of noise by attenuating minute vibrations due to contact between the roller 311 and the like and the sieve unit 2.

As shown in FIGS. 1 and 4, the rotation mechanism 30 further includes a drive unit 35 that actually drives the rotation shaft 31. The drive unit 35 includes a drive source 351, a control unit 352, and an operation unit 353.
The drive source 351 is connected to the rear end of the rotating shaft 31. An electric motor is used as the drive source 351, and the rotary drive shaft of the electric motor is connected to the rotary shaft 31. The control unit 352 is connected to the drive source 351 and the rotary drive of the drive source 351 is controlled by the control unit 352. The operation unit 353 is connected to the control unit 352, and the control unit 352 is operated by the operation unit 353.

As shown in FIG. 1, when the first gantry 4A and the second gantry 4B are arranged in the front-rear direction, at least the drive source 351 of the drive unit 35 is located at the lower part of the transport unit 8 and the second gantry 4B It is designed to go into the side. Of course, one or both of the control unit 352 and the operation unit 353 of the drive unit 35 may be configured to enter the second gantry 4B side. With such a configuration, the rotary sieve device 1 can be miniaturized.
In the drive unit 35, the control unit 352 may be omitted, and the drive source 351 may be directly operated by the operation unit 353. Further, in the present embodiment, each of the control unit 352 and the operation unit 353 of the drive unit 35 is configured as a separate system for each of the control unit 82 and the operation unit 83 of the transfer unit 8. It may be configured as one system.

Further, the drive unit 35 is configured such that the drive source 351 is connected to the rotation shaft 31, but the drive source 351 is indirectly connected to the rotation shafts 31 and 32, and the rotation shafts 31 and 32 are driven to rotate. It may be configured as an axis. Specifically, the drive unit 35 connects the drive source 351 to a drive pulley (not shown), hangs a belt (not shown) on each of the drive pulley and the rotating shafts 31 and 32, and rotates the drive pulley. May be transmitted to the rotating shafts 31 and 32 via the belt.

As shown in FIGS. 1 to 3 and 6 (A), the rotation mechanism 30 includes a limiting member 36 as a stopper that limits the movement of the sieve unit 2 toward the front side (axial direction of the rotation axis C). ing. The number of arrangements and the arrangement position are not particularly limited, but as shown in FIG. 6A, the limiting member 36 is in the vicinity of the roller 311 and slightly above the roller 311 and outside in the left-right direction, in the vicinity of the roller 321. Therefore, a total of two rollers are arranged at two locations slightly above the roller 321 and outside in the left-right direction. The limiting member 36 includes a driven roller that is supported on the upper portion of the leg portion 43, is in contact with the front end portion of the sieve unit 2, and is rotatably provided as the sieve unit 2 rotates around the rotation axis C. The driven roller is configured to include a metal or resin core material and a rubber or resin coating material coated along the circumference of the core material, similarly to the above-mentioned roller 311 or the like. There is.

(Structure of Sieve Unit 2)
As shown in FIGS. 1 to 3, 5 and 6 (A), the sieve unit 2 has a so-called rotary drum type structure having a plurality of layers of sieves having a substantially cylindrical shape. The sieve unit 2 is placed on four rollers 311, 312, 321 and 222 at four locations shown in FIG. 4, and is configured to rotate by the operation of the rotation mechanism 30. In particular, as shown in FIG. 6A, when viewed from the front side, the sieve unit 2 is rotated around the rotation axis C and clockwise in the arrow B direction with the rotation axis C as the center.
As described above, the sieve unit 2 is set to incline downward toward the front side in the side view. The rear end side of the sieve unit 2 (one end side of the rotating shaft C) is the charging side for feeding the peanut A, and the front end side of the sieve unit 2 (the other end side of the rotating shaft C) is selected by the sieve unit 2. It is said to be the discharge side that discharges peanuts A1 to A3.
Here, the sieve unit 2 is arranged on the same rotation axis C as the inner sieve 21 as the "other sieve" arranged inside in the radial direction and on the outer side in the radial direction. It is configured to include an outer sieve 22 as a "sieve". In other words, the inner sieve 21 having a smaller radial size than the outer sieve 22 is arranged on the same rotation axis C as the outer sieve 22 and is arranged inside the outer sieve 22 in the radial direction. .. In the present embodiment, the sieve unit 2 is composed of a two-layer structure of an inner sieve 21 and an outer sieve 22. Even if the sieve unit 2 has a one-layer structure of the outer sieve 22, it has an inner sieve 21 and an outer sieve 22, and has a three-layer structure or more in which another inner sieve is further added radially inside the inner sieve 21. It may be.

(1) Structure of Inner Sieve 21 The inner sieve 21 includes a sieve main body 211 formed by rolling a rectangular plate material and joining both ends to form a substantially cylindrical shape, and a sorting hole 212 penetrating the sieve main body 211 in the plate thickness direction. Is configured to include. The sieve body 211 is formed using, for example, a stainless steel plate. For example, the sieve body 211 is set to have a diameter of 300 mm and a length of 800 mm to 900 mm.
The sorting hole 212 is formed as an elongated hole whose length direction is parallel to the rotation axis C direction of the sieve unit 2 and whose width direction is the circumferential direction of the inner sieve 21. Both ends of the sorting hole 212 in the length direction are formed in a semicircular shape when viewed in the plate thickness direction. That is, since most of the peanut A as the "object to be sorted" has an elongated shape, the shape of the sorting hole 212 is formed according to the shape of the peanut A. Most of the sorting holes 212 are set to, for example, a length of 100 mm and a width of 14 mm.
When the peanut A is transported from one end side to the inside of the sieve main body 211, the selection hole 212 can pass the medium-sized peanut A2 and the small-sized peanut A3 to sort them. The large-sized peanut A1 that could not pass through the sorting hole 212 is conveyed to the other end side of the sieve body 211.
The sorting hole 212 may be an elongated hole having a rectangular shape when viewed in the plate thickness direction.

In particular, as shown in FIG. 5, a plurality of sorting holes 212 are regularly arranged in substantially the entire area of the sieve body 211. Here, a plurality of sorting holes 212 are arranged linearly in the front-rear direction (parallel to the rotation axis C) at regular intervals to form a sorting hole row 213. The sorting hole rows 213 are arranged at regular intervals in the circumferential direction of the sieve main body 211, and are arranged in a state of being half-pitch-shifted in the front-rear direction with respect to other sorting hole rows 213 adjacent to the sieve main body 211. That is, the sorting holes 212 are arranged in a staggered manner to improve the sorting efficiency of the peanut A randomly transported inside the inner sieve 21.

(2) Structure of Outer Sieve 22 The outer sieve 22 has a structure similar to that of the inner sieve 21, and is formed by rolling a rectangular plate material and joining both ends to form a substantially cylindrical sieve main body 221 and a sieve main body 221. It is configured to include a sorting hole 222 penetrating in the plate thickness direction. The diameter of the sieve body 221 is set to be one size larger than the diameter of the sieve body 211. For example, the sieve body 221 is set to have a diameter of 500 mm and a length of 700 mm to 800 mm. Further, in the rotation axis C direction, the length of the sieve main body 221 is set to be shorter than the length of the sieve main body 211. As shown in FIG. 1, in the side view, the rear end position of the sieve main body 221 and the rear end position of the sieve main body 211 are substantially the same, so that the front end position of the sieve main body 221 is relative to the front end position of the sieve main body 211. The position is retracted to the rear side. By having a difference in length, it is possible to easily take out the medium-sized peanut A2 that did not pass through the sorting hole 222 from the other end side of the sieve main body 221. The sieve body 221 is formed using the same material as the sieve body 211.

Similar to the sorting hole 212 of the inner sieve 21, the sorting hole 222 has a length direction parallel to the rotation axis C direction of the sieve unit 2 and a circumferential direction of the outer sieve 22 as a width direction. It is formed as a hole. A plurality of sorting holes 222 are regularly arranged in substantially the entire area of the sieve main body 221 and are arranged in a staggered manner like the sorting holes 212 of the inner sieve 21. That is, a plurality of sorting holes 222 are arranged linearly in the front-rear direction at regular intervals to form a sorting hole row 223. The sorting hole rows 223 are arranged at regular intervals in the circumferential direction of the sieve main body 221 and are arranged in a state of being half-pitch-shifted in the front-rear direction with respect to other adjacent sorting hole rows 223.
In the sorting hole 222, at least the width direction is set smaller than that of the sorting hole 212. By setting the width direction of the sorting hole 222, among the medium-sized peanuts A2 and the small-sized peanuts A3 selected by passing through the sorting holes 212 of the inner sieve 21, the sorting holes 222 pass through the small-sized peanuts A3. You can let them sort out. The medium-sized peanut A2 that could not pass through the sorting hole 222 is transported to the other end side of the sieve body 221. Most of the sorting holes 222 are set to, for example, a length of 90 mm and a width of 11 mm.

At the front end of the outer sieve 22, an end frame 23 is provided along the outer circumference of the sieve main body 221 and protruding radially outward from the outer circumference of the sieve main body 221. The end frame 23 has a plate thickness direction in the front-rear direction and is formed in a ring shape when viewed from the front. Here, the end frame 23 is formed by cutting out or punching a plate material similar to the outer sieve 22, and is joined to the outer sieve 22 by welding in a state of being fitted into the outer sieve 22.
The limiting member 36 of the rotation mechanism 30 comes into contact with the front surface of the end frame 23, and the end frame 23 comes into contact with the limiting member 36, so that the movement of the sieve unit 2 in the rotation axis C direction is restricted. Further, the end frame 23 increases the strength of the outer sieve 22 and contributes to the improvement of the rigidity of the outer sieve 22.

As shown in FIGS. 2, 3, 5 and 6 (A), the outer sieve 22 is connected to the inner sieve 21 using a plurality of spokes 24, and the inner sieve 21 is assembled using the spokes 24. ing. The spokes 24 are formed by using a metal round bar, and three spokes are arranged at the front end portion of the outer sieve 22, and three spokes are arranged at the rear end portion of the outer sieve 22 (not shown), for a total of six spokes. It is installed.
At the front end of the outer sieve 22, each of the three spokes 24 extends radially and is provided between the inner wall of the sieve body 221 of the outer sieve 22 and the outer wall of the sieve body 211 of the inner sieve 21. There is. The three spokes 24 are arranged around the rotation axis C at intervals of approximately 120 degrees. Female threads are provided at each of the radial inner end and the radial outer end of the spoke 24. A bolt (not shown) is fastened to the female screw at the inner end in the radial direction of the spoke 24 via a sieve main body 211. Similarly, bolts (not shown) are fastened to the female threads at the radial outer ends of the spokes 24 via the sieve body 221.
The arrangement and fastening structure of the three spokes 24 arranged at the rear end of the outer sieve 22 is the same as the arrangement and fastening structure of the three spokes 24 arranged at the front end.

In the rotary sieve device 1, the total length of the sieve unit 2 in the front-rear direction is set to fit within the length of the inner sieve 21, and the maximum diameter of the sieve unit 2 is set to fit within the diameter of the outer sieve 22. Since the size of the sieve unit 2, which is a main component, is set to such a small size, the rotary sieve device 1 can be miniaturized.

(Structure of vibration unit 9)
The rotary sieve device 1 according to the present embodiment includes a vibration unit 9 as shown in FIGS. 1 to 3, 5 and 6 (A). The vibration unit 9 is configured to vibrate the sieve unit 2 while rotating around the rotation axis C of the sieve unit 2. The vibration unit 9 includes a vibration generating member 91 as a main configuration.

The vibration generating member 91 is arranged on the outermost radial direction in which the rollers 312 and 322 (see FIGS. 1, 3 and 4) arranged at the rear ends (one end) of the rotating shafts 31 and 32 come into contact with each other. It is arranged on a part of the outer peripheral surface of the sieve main body 221 of the outer sieve 22. Here, the vibration generating member 91 is arranged on the outer peripheral surface of the outer sieve 22 in the vicinity of the connecting portion where the inner sieve 21 and the outer sieve 22 are connected by the spokes 24. As shown in FIG. 2, the vibration generating members 91 are arranged so as to overlap each other in the extending direction (vertical direction) of the spokes 24 when viewed from the rotation axis C direction. The vibration generating member 91 is formed in a shape that partially protrudes outward in the radial direction from the outer peripheral surface of the sieve main body 221.

More specifically, as shown in FIG. 6B, the vibration generating member 91 has an inclined portion 911 and a stepped portion 913. FIG. 6B shows a state in which the vibration generating member 91 is in contact with the roller 312 or the roller 322.
The inclined portion 911 is configured to gradually increase the separation dimension between the outer peripheral surface of the sieve main body 221 and the roller 312 or 322 as it advances in the rotation direction (arrow B direction) of the sieve main body 221. The inclined portion 911 is formed in an arc shape (gentle slope shape) protruding outward in the radial direction when viewed from the rotation axis C direction, and when contact with the roller 312 or 322 is started, the upward arrow V1 direction Slowly lift the sieve unit 2. The arrow V1 direction is, to be exact, a direction toward the rotation axis C of the sieve unit 2 in a state where the vibration generating member 91 and the roller 312 or 322 are not in contact with each other, and is a direction toward the inside in the radial direction.
On the other hand, the step portion 913 connects the outer peripheral surface of the sieve main body 221 and the roller 321 or 322 from the most distant position at a short distance compared to the length of contact with the roller 312 or 322 of the inclined portion 911 in the arrow B direction. It is configured to be in contact. That is, the sieve unit 2 lifted by the inclined portion 911 in the direction of arrow V1 is dropped at once until it comes into contact with the roller 312 or 322 in the direction of arrow V2. The direction of arrow V2 is opposite to the direction of arrow V1.
The vibration generating member 91 is formed in a substantially triangular shape having the outer peripheral surface of the sieve main body 221 as the base and the inclined portion 911 and the stepped portion 913 as the hypotenuses when viewed from the rotation axis C direction of the sieve unit 2.

That is, by providing the vibration generating member 91, the sieve unit 2 can be subjected to vibration in its radial direction (arrow V1 direction and arrow V2 direction). Further, when the sieve unit 2 is dropped at the step portion 913, the outer peripheral surface of the sieve main body 221 collides with the roller 312 or 322 at once, so that the sieve unit 2 can be impacted.
In the present embodiment, one or more vibration generating members 91 may be arranged on the outer peripheral surface of the sieve main body 221. One vibration generating member 91 comes into contact with each of the two rollers 312 and 322 each time the sieve main body 221 makes one rotation around the rotation axis C. Therefore, in the vibration unit 9, one vibration generating member 91 can give the sieve unit 2 two reciprocating vibrations and an impact for each rotation of the sieve unit 2.
Further, as shown in FIG. 6A, in the vibration unit 9, since the vibration direction is the direction toward the rotation axis C of the sieve unit 2, the left-right direction (arrow) orthogonal to the rotation axis C in the horizontal direction. The sieve unit 2 can also be vibrated in the V3 direction). That is, the sieve unit 2 is shaken left and right by the vibration in the left-right direction.

(Configuration of exclusion unit 10)
As shown in FIG. 7, the rotary sieve device 1 according to the present embodiment is provided with the exclusion unit 10. The exclusion unit 10 has a configuration in which non-standard peanuts A4 are preliminarily excluded from the peanuts A as the objects to be sorted, and the peanuts A within the standard are selected. "Non-standard peanut A4" is lighter than peanut A and has a large air resistance, so that it is easily blown off by compressed air.

The exclusion unit 10 includes an air blowing portion 101 that blows out air air as a main configuration. The air blowing portion 101 is configured with a direction orthogonal to the horizontal direction as the longitudinal direction with respect to the transport direction of the peanut A by the transport unit 8, and covers the entire transport width of the peanut A (width of the endless belt 8C) and. Air air is sprayed evenly.
Considering the weight of peanut A, the falling distance and the falling speed, the distance to blow the peanut A4, etc., the angle at which the air air is blown out from the air blowing part 101 is set within the range of 30 to 60 degrees from the horizontal plane. The air is blown diagonally upward.
One end of the air hose 102 is connected to the air blowing portion 101. A blown air generation source (not shown) is connected to the other end of the air hose 102. As the blown air generation source, for example, a blower that generates compressed air can be practically used.

The air blowing portion 101 is supported by a support 49 provided in the vertical intermediate portion of the leg portion 47 on the front side of the second gantry 4B. The support 49 includes a pair of left and right frames 491, a cross frame 492, and a pair of left and right brackets 493. The pair of left and right frames 491 extend forward from the front wall of the leg 47, respectively, and are formed in a substantially rectangular columnar shape. One end of the cross frame 492 is connected to the front end of one frame 491, and the other end of the cross frame 492 is connected to the front end of the other frame 491. The cross frame 492 is formed in a substantially rectangular columnar shape extending in the left-right direction. The pair of left and right brackets 493 are formed on the intermediate portion of the pair of left and right frames 491 in the extending direction, respectively, and fix the air blowing portion 101.

In the present embodiment, when the peanut A is sorted by using the sieve unit 2, the work of eliminating the nonstandard peanut A4 is carried out in advance. In order to efficiently carry out these operations, in the rotary sieve device 1, the first gantry 4A to the second gantry 4B are detachably configured, and the hopper 5, the transport unit 8 and the exclusion unit supported by the second gantry 4B are excluded. Work is being carried out to eliminate peanut A4 using unit 10.

FIG. 7 shows a working state for eliminating peanut A4. That is, in the rotary sieve device 1, when the peanut A is put into the hopper 5, the peanut A is conveyed by the endless belt 8C of the conveying unit 8. The peanut A transported by the endless belt 8C falls downward toward the accumulation container 64 installed directly below the end portion in the transport direction of the transport unit 8.
During this fall, air is blown onto the peanut A from the air blowing portion 101. By spraying this air air, the nonstandard peanut A4 is blown off and sorted into the accumulation container 65. The peanut A within the standard is heavier than the non-standard peanut A4 and has a small air resistance, so that the peanut A falls into the accumulation container 64 and is accumulated.

(Operation of rotary sieve device 1 and procedure for sorting peanut A)
Next, the operation of the rotary sieve device 1 will be described, and the procedure for selecting the peanut A will also be described.

First, the operator prepares a peanut A within the standard excluding the non-standard peanut A4 by using the exclusion unit 10 of the rotary sieve device 1 shown in FIG. 7. At this time, in the rotary sieve device 1, the second gantry 4B is removed from the first gantry 4A (see FIG. 1), and the hopper 5, the transport unit 8, and the exclusion unit 10 are separated from the sieving unit 2.
After that, the sorting work for sorting the peanuts A within the standard is started. At the start of the sorting operation, as shown in FIG. 1, the second gantry 4B is assembled to the first gantry 4A, and the transport direction end of the transport unit 8 is exactly one end of the inner sieve 21 of the sieve unit 2. It is in a state of being located inside the inner sieve 21.

In the rotary sieve device 1 shown in FIG. 1, when the peanut A within the standard is put into the hopper 5, the operation unit 83 shown in FIG. 7 is operated by an operator. By operating the operation unit 83, specifically, by turning on the power of the drive source 81, the drive source 81 is driven via the control unit 82, and the peanut A charged into the hopper 5 is conveyed using the transfer unit 8.

On the other hand, in the rotary sieve device 1, the operation unit 353 of the drive unit 35 shown in FIG. 1 is operated by an operator. The drive source 351 is driven via the control unit 352 by operating the operation unit 353, specifically, by turning on the power of the drive source 351.
When the drive source 351 is driven, the rotating shaft 31 shown in FIGS. 1, 3 and 4 rotates, and the rollers 311 and 312 provided on the rotating shaft 31 rotate. Since the sieve unit 2 is placed on the rollers 311 and 312, the rollers 311 and 312 rotate the outer sieve 22 around the rotation axis C, thereby rotating the sieve unit 2 as shown in FIGS. Rotates. When the outer sieve 22 rotates, the rollers 321, 322 and the rotating shaft 32 that come into contact with the outer sieve 22 rotate according to the rotation of the sieve unit 2. Of course, as the outer sieve 22 rotates, the inner sieve 21 rotates.
Further, when the sieve unit 2 rotates, the limiting member (roller in this case) 36 in contact with the end frame 23 shown in FIGS. 1 to 3 and 6 (A) rotates, and the limiting member 36 becomes a wall. The movement of the sieve unit 2 in the rotation axis C direction is restricted.

Returning to FIGS. 1 and 2, when the rotation of the sieve unit 2 is started, the supply of the peanut A conveyed by the transfer unit 8 is started inside one end side of the inner sieve 21 of the sieve unit 2. .. Since the peanuts A are sequentially supplied and the sieve unit 2 is appropriately tilted, the peanuts A are conveyed to the other end side of the inner sieve 21 as the inner sieve 21 rotates.
Here, the large-sized peanut A1 that does not pass through the plurality of sorting holes 212 arranged in the inner sieve 21 is directly conveyed to the other end side of the inner sieve 21 and guided to the guide member 71 of the guide portion 7 to accumulate. It is accumulated in the accumulation container 61 of the part 6. That is, the large size peanut A1 is sorted by the inner sieve 21.

Among the peanuts A, the small-sized peanuts A1 and the medium-sized peanuts A2 are moved (transported) from the inner sieve 21 to one end side of the outer sieve 22 by adding a sorting hole 212. Since the plurality of sorting holes 222 arranged in the outer sieve 22 are set to be smaller in size than the plurality of sorting holes 212 arranged in the inner sieve 21, medium-sized peanuts A2 that do not pass through the sorting holes 222. Is directly conveyed to the other end side of the outer sieve 22. The conveyed medium-sized peanut A2 is guided by the guide member 72 and accumulated in the accumulation container 62. Here, the outer sieve 22 selects medium-sized peanuts A2.

Then, the small-sized peanut A3 that passes through the sorting hole 222 of the outer sieve 22 is guided by the plate-shaped guide member 73 arranged at the lower end side of the outer sieve 22, and is installed under the outer sieve 22. It is collected in the collection container 63. Here, small-sized peanuts A3 are sorted by the sorting hole 222 of the outer sieve 22.

In the present embodiment, the exclusion unit 10 is mainly used as a device for selecting "dried peanuts" as peanuts A and non-standard peanuts A4, but of "raw peanuts" and "boiled peanuts". It can be applied to any of the selections.

(Action and effect)
As described above, the rotary sieve device 1 according to the present embodiment includes a sieve unit 2 and a support unit 3 as shown in FIGS. 1 to 5 and 6 (A). The sieve unit 2 includes an outer sieve 22. In the outer sieve 22, objects to be sorted (here, medium-sized peanuts A2 and small-sized peanuts A3) are supplied (loaded) from one end side in the direction of rotation axis C through the sorting holes 212 of the inner sieve 21. ), The object to be sorted (here, medium-sized peanut A2) is formed in a tubular shape to be conveyed to the other end side in the rotation axis C direction. Then, a plurality of sorting holes 222 for sorting objects to be sorted (here, small-sized peanuts A1) smaller than a certain size are arranged through the outer sieve 22 in the radial direction.
Here, the rotary sieve device 1 further includes a vibration unit 9 as shown in FIGS. 1 to 3, 5, 6 (A) and 6 (B). The vibration unit 9 vibrates the sieve unit 2 while rotating around the rotation axis C of the sieve unit 2.
Therefore, even if the small-sized peanut A3 is caught in the sorting hole 222 of the outer sieve 22, it can be easily shaken off by the given vibration, so that the medium-sized peanut A2 and the small-sized peanut A3 are combined. Sorting can be performed easily and reliably. In particular, since peanut A has an uneven net-like shell, an elongated and bowl-shaped shell, or a shell with a protruding whiskers, the small-sized peanut A3 is easily caught in the sorting hole 222, but is easily removed by vibration. be able to.
Therefore, it is possible to provide the rotary sieving device 1 that easily selects the size of the object to be sorted having the shape of an ohitsu.

Further, in the rotary sieve device 1, as shown in FIGS. 1, 3 and 5, the sorting hole 222 of the outer sieve 22 is an elongated hole. The elongated hole has a length direction in a direction parallel to the rotation axis C direction of the sieve unit 2 and a width direction in the circumferential direction of the outer sieve 22. Then, since the size of the object to be sorted can be selected based on the width dimension of one of the sorting holes 222, the size of the object to be sorted can be selected based on both the length dimension and the width dimension. Compared to the above, the size of the object to be sorted can be selected efficiently.

Further, in the rotary sieve device 1, the sieve unit 2 includes an inner sieve 21 as shown in FIGS. 1 to 3, 5 and 6 (A). The inner sieve 21 is a cylinder in which the object to be sorted is charged from one end side in the rotation axis C direction, the object to be sorted is conveyed to the other end side in the rotation axis C direction, and the size in the radial direction is smaller than that of the outer sieve 22. It is formed in a shape. The inner sieve 21 is arranged coaxially with the outer sieve 22 on the inner side in the radial direction of the outer sieve 22.
A plurality of sorting holes 212 are arranged in the inner sieve 21. The sorting hole 212 is penetrated in the radial direction, and the size of the elongated hole at least in the width direction is set larger than that of the sorting hole 222 of the outer sieve 22.
Therefore, in the sieve unit 2, the size of the object to be sorted (here, the size of the large size peanut A3, the size of the medium size peanut A2, and the size of the small size peanut A1) is selected even in the inner sieve 21. be able to. That is, in the rotary sieve device 1, a total of three types of sizes of objects to be sorted can be selected.

Further, in the rotary sieving device 1, as shown in FIGS. 1, 3 and 4, the support unit 3 includes a pair of rotary shafts 31, 32 and rollers 311, 312, 321 and 222. The pair of rotating shafts 31 and 32 are arranged below the sieve unit 2 in parallel with the rotating shaft C of the sieve unit 2 and on both sides of the sieve unit 2. The roller 311 is provided at one end of the rotating shaft 31, the roller 312 is provided at the other end of the rotating shaft 31, the roller 321 is provided at one end of the rotating shaft 32, and the roller 322 is provided at the other end of the rotating shaft 32. These rollers 311, 312, 321 and 222 are in contact with the outer peripheral surface of the outer sieve 22 to rotate the sieve unit 2 around the rotation axis C.
Then, the sieve unit 2 is placed on the rollers 311, 312, 321 and 222.
Therefore, since the support unit 3 has a simple configuration including a pair of rotating shafts 31, 32, rollers 311 and 312, 321 and 222, and has a small number of parts, the rotary sieving device 1 is realized by a simple structure. be able to.
In addition, since the structure is simple, the rotary sieve device 1 can be reduced in size and weight. Further, since the structure is simple with a small number of parts, the manufacturing cost of the rotary sieve device 1 can be reduced.
Since the sieve unit 2 is mounted on the rollers 311, 312, 321 and 222, the sieve unit 2 can be easily attached to and detached from the support unit 3, and the maintenance and cleaning of the sieve unit 2 can be easily performed. Can be carried out.

Further, the rotary sieve device 1 includes a drive unit 35 as shown in FIG. The drive unit 35 includes a drive source 351 connected to the rotation shaft 31, a control unit 352 that controls the rotation of the drive source 351, and an operation unit 353 that operates the control unit 352.
Therefore, since the rotary mechanism 30 for rotating the sieve unit 2 can be constructed with a simple configuration, the rotary sieve device 1 can be realized with a simple structure.

Further, in the rotary sieve device 1, as shown in FIGS. 1 to 3, 5, 6 (A) and 6 (B), the vibration unit 9 includes a vibration generating member 91. The vibration generating member 91 is disposed on a part (see FIG. 4) of the outer peripheral surface of the outer sieve 22 where the rollers 312 and 322 come into contact with each other, and projects radially outward from the outer peripheral surface of the outer sieve 22. As shown in FIG. 6A, the vibration generating member 91 gives vibration to the sieve unit 2 at least in the radial direction including the direction of arrow V1 and the direction of arrow V2.
Therefore, since the vibration unit 9 is constructed with the vibration generating member 91 as the main configuration, the vibration unit 9 can be configured with a small number of parts and a simple configuration. Therefore, the size and weight of the rotary sieve device 1 can be further reduced.

Further, in the rotary sieve device 1, as shown in FIG. 6B, the vibration generating member 91 of the vibration unit 9 includes an inclined portion 911 and a stepped portion 913. The inclined portion 911 is configured to increase the separation distance between the outer peripheral surface of the outer sieve 22 and the roller 312 or 322 (see FIG. 4) as the outer sieve 22 advances in the rotation direction (direction of arrow B). The step portion 913 has a structure in which the roller 312 or 322 is brought into contact with the outer peripheral surface of the outer sieve 22 from the most distant position in a length shorter than the length of the slope of the inclined portion 911 in the rotation direction of the outer sieve 22. Will be done.
With reference to FIGS. 6 (A) and 6 (B), the vibration generating member 91 has the outer peripheral surface of the outer sieve 22 as the base, and the inclined portion 911 and the stepped portion 913 when viewed from the rotation axis C direction of the sieve unit 2. It is formed in a substantially triangular shape with each having a hypotenuse.
Therefore, in the vibration generating member 91, immediately after the outer peripheral surface of the outer sieve 22 and the roller 312 or 322 are most separated by the inclined portion 911, the stepped portion 913 makes contact with both at once by utilizing the own weight of the sieve unit 2. It is possible to cause the sieve unit 2 to have an impact due to collision. Even if the small-sized peanut A3 is caught in the sorting hole 222 of the outer sieve 22, the small-sized peanut A3 can be easily shaken off from the sorting hole 222 by the given vibration and impact. Therefore, it is possible to easily and surely realize the selection between the medium-sized peanut A2 and the small-sized peanut A3.
In the present embodiment, the inner sieve 21 is provided in the sieve unit 2, and even if the medium-sized peanut A2 is caught in the sorting hole 212 of the inner sieve 21, the vibration unit 9 similarly causes the large-sized peanut A1. It is possible to easily and surely realize the selection with the medium-sized peanut A2.

Further, in the rotary sieve device 1, as shown in FIGS. 2, 3, 5 and 6 (A), spokes 24 for connecting the outer sieve 22 and the inner sieve 21 of the sieve unit 2 are provided. The vibration generating member 91 of the vibration unit 9 is arranged in the vicinity of the connecting portion between the outer sieve 22 and the spokes 24. The vicinity of the connecting portion between the outer sieve 22 and the spoke 24 is a portion having higher rigidity of the outer sieve 22 than the other portions.
Therefore, the vibration and impact generated by the vibration generating member 91 can be efficiently propagated to each of the outer sieve 22 and the inner sieve 21.

Further, the rotary sieve device 1 includes a hopper 5 as shown in FIG. The hopper 5 is arranged on one end side of the sieve unit 2, and the peanut A is put into the hopper 5. Therefore, the hopper 5 efficiently and stably supplies the peanut A to the sieve unit 2, and the sieve unit 2 can efficiently and stably sort the peanut A, thus realizing the rotary sieve device 1 suitable for mass production. can do.

Further, the rotary sieve device 1 includes a limiting member 36 in the support unit 3 as shown in FIGS. 1 to 4 and 6 (A). The limiting member 36 contacts the other end of the sieve unit 2 in the rotation axis C direction, and limits the movement of the sieve unit 2 toward the other end in the axial direction. The limiting member 36 is configured as a driven roller that rotates in accordance with the rotation of the sieve unit 2.
Therefore, in the rotary sieve device 1, the axial movement of the sieve unit 2 can be restricted by a simple configuration of the driven roller.

Further, the rotary sieve device 1 includes an integration unit 6 as shown in FIGS. 1 and 2. In the accumulation unit 6, large-sized peanuts A1, medium-sized peanuts A2, and small-sized peanuts A3 are accumulated when they are arranged on the other end side of the sieve unit 2 and are sorted. Therefore, the large-sized peanut A1 can be sorted and accumulated in the collecting container 61, the medium-sized peanut A2 can be sorted and stored in the collecting container 62, and the small-sized peanut A3 can be sorted and stored in the collecting container 63.

Further, as shown in FIG. 7, the rotary sieve device 1 further includes a transport unit 8 and an exclusion unit 10. The transport unit 8 transports the object to be sorted supplied from the hopper 5. The exclusion unit 10 removes the nonstandard peanut A4 in the peanut A transported by the transport unit 8.
Therefore, since the non-standard peanut A can be excluded in the exclusion unit 10, the quality of the selected peanut A can be improved.

[Second Embodiment]
The rotary sieve device 1 according to the second embodiment of the present invention will be described with reference to FIGS. 8 to 15. In the description of the present embodiment, the same components as the components of the rotary sieve device 1 according to the first embodiment or substantially the same components are designated by the same reference numerals, and duplicate description is omitted. To do.

First, the rotary sieving apparatus 1 according to the present embodiment has a configuration capable of continuously performing a series of sorting operations from non-standard sorting of peanut A to sorting of size. 1 It is different from the rotary sieve device 1 according to the embodiment.
Secondly, the rotary sieving device 1 according to the first embodiment is provided with an inclination adjusting mechanism 400 for adjusting the inclination angle of the sieving unit 2 on the first gantry 4A that supports the support unit 3. Is different.
Thirdly, the rotary sieve device 1 is different from the rotary sieve device 1 according to the first embodiment in that the configuration of a part of the rotary mechanism 30 of the support unit 3 and the configuration of the vibration unit 9 are changed. It is different.
Hereinafter, different configurations of the rotary sieve device 1 will be described.

(Overall configuration of rotary sieve device 1)
As shown in FIGS. 8 to 11, in the rotary sieve device 1, each of the transfer unit 8, the exclusion unit 10, and the sieve unit 2 is continuously arranged in the transfer direction. In other words, the exclusion unit 10 is arranged between the front end portion of the transport unit 8 in the transport direction and the rear end portion of the sieve unit 2 in the rotation axis C direction.

(Configuration of exclusion unit 10)
Similar to the rotary sieving device 1 according to the first embodiment, the transfer unit 8 is arranged on the second gantry 4B, and the hopper 5 is provided on the transfer unit 8. Below the tip of the transport unit 8 in the transport direction, an air blowing portion 101 of the exclusion unit 10 is arranged between the transport unit 8 and the sieve unit 2. Basically, the configuration of the exclusion unit 10 is the same as the configuration of the exclusion unit 10 of the rotary sieve device 1 according to the first embodiment.
As shown in FIGS. 9 and 11, the air blowing portion 101 is connected to the blower 103 through the air hose 102. The compressed air generated by turning on the power in the blower 103 is blown out as air air from the air blowing portion 101.

(Structure of transport guide unit 494)
As shown in FIGS. 8, 9 and 11, a transport guide portion 494 is provided from below the tip of the transport unit 8 in the transport direction to the inside of one end side of the inner sieve 21 of the sieve unit 2. The transport guide portion 494 is configured by bending both ends in the transport width direction of the plate material whose vertical direction is the plate thickness direction upward. In the plan view, the transport guide unit 494 sets the transport unit 8 side to a dimension equal to or slightly wider than the width dimension of the endless belt 8C, and the inner sieve 21 side to a narrow dimension that fits inside. (See FIG. 9).
The transport guide portion 494 is attached at an inclination angle that descends downward from the transport unit 8 side toward the inner sieve 21. Although detailed description is omitted, the inclination angle of the transport guide unit 494 can be adjusted within a range of, for example, 30 to 60 degrees with respect to the horizontal plane by using the inclination adjusting unit 495 shown in FIG. ..
The transport guide unit 494 configured in this way receives the peanut A transported from the transport unit 8 and selected by the exclusion unit 10 as being within the standard, and slides the peanut A onto the inner sieve 21 of the sieve unit 2. Can be supplied.

(Structure of gantry 4)
As shown in FIG. 8, the gantry 4 supports the first gantry 4A that supports the support unit 3, the hopper 5, the transport unit 8, and the exclusion unit 10 in the same manner as the rotary sieve device 1 according to the first embodiment. It is equipped with a second mount 4B.
As shown in FIGS. 8 and 10, a roller 430 with a brake that enables the first gantry 4A to move is provided at the lower end of the leg portion 43 of the first gantry 4A.
Further, as shown in FIG. 8, an inclination adjusting mechanism 400 is attached to the lower end portion of the leg portion 43. The inclination adjusting mechanism 400 has a base portion 401 arranged on the mounting surface side, a male screw portion 402 erected upward from above the base portion 401, and a female screw portion partially screwed into the male screw portion 402. However, the other portion is configured to include a bracket 403 joined to the lower end portion of the leg portion 43. The bracket 403 is formed by using, for example, a metal plate having a vertical direction as a thickness direction. In the tilt adjusting mechanism 400, the first gantry 4A can be tilted by rotating the base portion 401 and the male screw portion 402 to change the screwing height of the male screw portion 402 with the female screw portion. Here, the first gantry 4A is adjusted so that the rear end side is higher than the front end side so that the sieve unit 2 is inclined.
Similarly, as shown in FIGS. 8 and 11, a roller 470 with a brake that enables the second gantry 4B to move is provided at the lower end of the leg portion 47 of the second gantry 4B. The second gantry 4B does not particularly require an inclination adjusting mechanism.

(Structure of support unit 3)
Returning to FIG. 8, the pair of rotating shafts 31 and 32 (see FIGS. 9 and 10) constituting the rotating mechanism 30 of the support unit 3 are mounted on the bottom surface of the support unit 3 or on the first gantry 4A. It is provided parallel to the main frame 41. In the rotary sieve device 1 according to the first embodiment, the sieve unit 2 is supported by the support unit 3 in an inclined state. On the other hand, since the rotary sieve device 1 according to the present embodiment includes the inclination adjusting mechanism 400, the sieve unit 2 is basically supported by the support unit 3 in the horizontal state.

As shown in FIGS. 12 and 15, the roller 312 (second roller) attached to the rotating shaft 31 is a sieve with respect to the roller 322 (first roller) attached to the rotating shaft 32 of the rotating mechanism 30. The unit 2 is arranged at a position deviated from the rotation axis C direction. More specifically, in the present embodiment, the rollers 312 are arranged at positions shifted toward the front end side of the sieve unit 2 so as not to overlap with the rollers 322 in the side view.
Here, as shown in FIG. 14, the roller 322 is in contact with the outer peripheral surface of the outer sieve 22 that moves from the upper side to the lower side by the rotation of the sieve unit 2 in the arrow B direction. On the other hand, the roller 312 is in contact with the outer peripheral surface of the outer sieve 22 that moves from the lower side to the upper side.
Further, each of the roller 311 and the roller 321 is arranged at the same position in the side view. The rollers 311 and 321 may be arranged at positions where the other is offset from the one.

(Structure of vibration unit 9)
In the above positional relationship between the roller 312 and the roller 322, in the present embodiment, as shown in FIGS. 12 to 15, the vibration generating member 91 of the vibration unit 9 is placed on the outer peripheral surface of the outer sieve 22 with which the roller 322 is in contact. It is arranged along. In other words, the vibration generating member 91 is not arranged along the outer peripheral surface of the outer sieve 22 with which the rollers 312 come into contact. Here, three vibration generating members 91 are arranged at regular intervals along the outer peripheral surface of the outer sieve 22. Each vibration generating member 91 is arranged in the vicinity of the connecting portion between the outer sieve 22 and the spoke 24. The number of vibration generating members 91 is not limited to three, and one or more may be arranged. Further, the position where the vibration generating member 91 is arranged and the interval between each of the plurality of vibration generating members 91 may be arbitrary.
As shown in FIG. 14, when the sieve unit 2 rotates in the direction of arrow B and the contact between the roller 322 and the vibration generating member 91 is started, the outer sieve 22 is separated from the roller 322 and the vibration generating member is separated. When 91 exceeds the roller 322, the outer sieve 22 comes into contact with the roller 322. That is, in the vibration unit 9, the sieve unit 2 can generate vertical vibration in the arrow V1 direction and arrow V2 direction and horizontal vibration in the arrow V3 direction. Then, in the present embodiment, the sieve unit 2 can be subjected to three vertical vibrations by using the three vibration generating members 91 by rotating the sieve unit 2 once.

(Action and effect)
As described above, the rotary sieving device 1 according to the present embodiment can obtain the same action and effect as the action and effect obtained by the rotary sieving device 1 according to the first embodiment described above.

Further, in the rotary sieve device 1, as shown in FIGS. 8 and 9, an exclusion unit 8 is arranged between one end of the sieve unit 2 in the rotation axis C direction and the transport unit 8. Therefore, among the peanuts A transported using the transport unit 8, non-standard peanuts A are selected in the exclusion unit 10, and peanuts A in the standard are selected in size in the sieve unit 2. As a result, the rotary sieve device 1 can continuously perform consistent operations from non-standard sorting work to size sorting work.
In particular, since the exclusion unit 10 is included in the transport path, the rotary sieve device 1 is effective for sorting "dried peanuts".

Further, in the rotary sieve device 1, in the rotary mechanism 30 of the support unit 3, the roller 312 attached to the rotary shaft 31 is displaced in the direction of the rotary shaft C of the sieve unit 2 with respect to the roller 322 attached to the rotary shaft 32. It is arranged at a vertical position. Then, the vibration generating member 91 of the vibration unit 9 is arranged along the outer peripheral surface of the outer sieve 22 with which the roller 322 comes into contact.
Therefore, in the vibration unit 9, the vibration generating member 91 can come into contact with the roller 322 to give vibration and impact to the sieve unit 2.
On the other hand, in the vibration unit 9, since the vibration generating member 91 does not come into contact with the roller 312, vibration and impact are not generated on the roller 312 side. This is because when the vibration generating member 91 comes into contact with the roller 312, the sieve unit 2 is lifted upward, and then the contact between the two is lost and the sieve unit 2 is dropped downward, the vibration generating member 91 is just dropped. , The roller 312 immediately after the contact is released comes into contact again. Since this recontact may induce damage to the roller 312, the rotary sieve device 1 according to the present embodiment is configured so that the roller 312 does not come into contact with the vibration generating member 91.

(Other embodiments)
The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist thereof.
For example, in the rotary sieve device, a speed reducer may be arranged between the drive source of the support unit and the rotary shaft.
Further, in the rotary sieve device, the vibration unit may be constructed by providing a vibration generating member at the other end of the sieve unit that comes into contact with the driven roller as the limiting member, for example, a part of the end frame.
Further, the rotary sieve device may be used for sorting the size of peanut fruits by appropriately adjusting the size of the sorting holes of the sieve.

1 Rotary sieve device 2 Sieve unit 21 Inner sieve (other sieve)
211, 221 Sieve body 212, 222 Sorting hole 22 Outer sieve (sieve)
3 Support unit 30 Rotation mechanism 31, 32 Rotation shaft 311, 312, 321, 222 Roller 35 Drive unit 4 Stand 5 Hopper 6 Integration part 7 Guide part 8 Conveyance unit 9 Vibration unit 91 Vibration generation member 911 Inclined part 913 Step part A, A1 to A4 peanuts (objects to be sorted)

Claims (9)

The object to be sorted is input from one end side in the axial direction, and the object to be sorted is sorted into a tubular shape in which the object to be sorted is conveyed to the other end side in the axial direction and smaller than a certain size. A sieve unit having a plurality of sieves coaxially arranged with a plurality of sorting holes penetrating in the radial direction,
A pair of rotations that rotatably support the sieve unit around a rotation axis from below and are arranged on the lower side of the sieve unit in parallel with the rotation axis of the sieve unit and on both sides of the sieve unit. A support unit including a shaft, rollers provided at one end and the other end of the rotating shaft, which are in contact with the outer peripheral surface of the sieve unit and rotate the sieve unit around the rotation axis.
A rotation shaft of the sieve unit, which is disposed on a part of a portion of the outer peripheral surface of the sieve unit where the roller comes into contact and includes a vibration generating member protruding radially outward from the outer peripheral surface of the sieve unit. A vibration unit that gives the sieve unit at least radial vibration during rotation, and
With
The sorting hole is
An elongated hole having a direction parallel to the axial direction of the sieve unit as a length direction and a circumferential direction of the sieve as a width direction.
The sieve unit is
It is provided with one sieve and another sieve formed in a tubular shape having a smaller radial size than the one sieve.
The other sieve is arranged radially inside the one sieve.
The other sieve
A plurality of other sorting holes that are penetrated in the radial direction and have a larger size at least in the width direction of the elongated holes than the sorting holes of the one sieve are arranged.
Of the rollers provided at one end of the rotating shaft, from the bottom to the top with respect to the first roller that comes into contact with the outer peripheral surface of the sieve unit that moves from the top to the bottom due to the rotation of the sieve unit. The second roller that comes into contact with the outer peripheral surface of the sieve unit that moves toward the sieve unit is arranged at a position deviated in the axial direction of the sieve unit.
The vibration generating member is a rotary sieve device arranged around the outer periphery of the sieve unit with which the first roller comes into contact. A drive source connected to at least one of the pair of rotating shafts,
A control unit that controls the rotation of the drive source,
An operation unit that operates the control unit and
The rotary sieving apparatus according to claim 1, further comprising a drive unit comprising the above. The vibration generating member is
An inclined portion that increases the separation distance between the outer peripheral surface of the sieve unit and the roller as the sieve unit advances in the rotational direction.
A step portion that brings the roller into contact with the outer peripheral surface of the sieve unit from the most distant position in a length shorter than the length of the inclined portion in the rotation direction of the sieve unit.
Consists of, including
The rotation according to claim 1 or 2, which is formed in a substantially triangular shape having the outer peripheral surface of the sieve unit as the base and the inclined portion and the stepped portion as the hypotenuses when viewed from the axial direction of the sieve unit. Sieve device. Further provided with spokes connecting the one sieve and the other sieve
Any of claims 1 to 3, wherein the vibration generating member is arranged in the vicinity of a connecting portion between the one sieve and the spoke so as to overlap in the extending direction of the spoke. The rotary sieve device according to item 1. The rotary sieving apparatus according to any one of claims 1 to 4, further comprising a hopper for charging the object to be sorted, which is arranged on one end side of the sieving unit. The support unit is further provided with a stopper that vertically contacts the other end of the sieve unit in the axial direction and restricts the movement of the sieve unit to the other end in the axial direction.
The rotary sieve device according to any one of claims 1 to 5, wherein the stopper is configured as a driven roller that rotates rotatably with the rotation of the sieve unit. The rotary sieving apparatus according to any one of claims 1 to 6, further comprising an accumulating portion for accumulating the selected objects to be sorted, which is arranged on the other end side of the sieving unit. A transport unit that transports the object to be sorted,
An exclusion unit for removing the object to be sorted that does not meet a certain standard in the object to be sorted that is conveyed by the transfer unit is further provided.
The exclusion unit includes an air blowing portion for blowing air on the object to be sorted, and the object to be sorted is conveyed in order to blow air on the object to be sorted. The rotary sieving apparatus according to any one of claims 1 to 7, wherein a direction orthogonal to the horizontal direction with respect to the transport direction is defined as a longitudinal direction. The rotary sieve device according to claim 8, wherein the exclusion unit is arranged between one end of the sieve unit in the axial direction and the transfer unit.

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