KR100266717B1 - Stone assorting machine in rice - Google Patents

Abstract

The present invention relates to a separator for sorting and removing the scum mixed in grains

The first and second support rollers 15 and 16 are installed in the main body 11 at predetermined intervals before and after the first and second inclined surfaces on the lower surface of the sorting case 17 having the perforated plate 18. (19) and (20) are formed, and each of the inclined grounds (19) and (20) is supported by each of the supporting rollers (15) and (16) so that the sorting case (17) is installed in the inclined state in the main body (11) and the sorting case. The first inclined ground surface 19 in which the inclination angles A1 and A2 of the inclined ground surfaces 19 and 20 with respect to the bottom surface of 17 are located at the grain grain outlet 17b below the front end is the residual stone recovery portion of the rear end upper side. It is formed to be larger than the second inclined ground surface 20 positioned at 17c, and is made by rocking the sorting case 17 by the drive mechanism 21.

Accurate sorting and shortening of the sorting time and easy cleaning of the porous sorting plate.

Description

Stone separator

The present invention relates to a sediment separator for sorting and removing residue stones mixed in grains.

Conventionally, this type of separator is known from the Japanese Utility Model Registration No. 2509573, and the separator has a selection case 52 in the main body 51 as shown in FIGS. 6 and 7. It is supported so as to be able to swing in an inclined state via the 53 and 54, and a porous sorting plate 55 is installed on the bottom thereof.

The blower 56 is fixedly disposed at the lower portion of the sorting case 52 and is fixedly rotatable. The sorting case 52 is rotated through the porous separator 55 in the blower 56 by rotating the blower 56 with the motor 57. ) The wind enters into me.

In the main body 51, the eccentric wheel 58 is rotatably installed, and the selection case 52 is rotated through the driven link 59 and the pin lever 60 by rotating the eccentric wheel 58 with the motor 57. And the blower 56 is reciprocated.

A supply hopper 61 is installed at an upper portion of the main body 51 and grain grains are supplied from the supply hopper 61 into the sorting case 52.

And grain kernels including the rubble supplied into the sorting case 52 by the swinging of the sorting case 52 and the blowing from the blower 5 are subject to the specific gravity difference in the sorting part 52a on the perforated separator plate 55. Low specific gravity grains and high specific gravity stones are selected.

Grain grains selected by the sorting unit 52a are discharged to the grain kernel outlet 52b formed at the front end of the sorting case 52, and the sorted rubble is returned to the fine stone recovering unit 52c at the upper end of the sorting case 52. It is recovered.

In this case, the width of the sorting case 52 is formed to be narrower than the sorting part 52a, and the rear end of the narrowed scraping part 52c is inclined in the opposite direction to the sorting case 52 at the rear end. The cylinder 62 is provided, and the gate 63 for opening / closing the front-end inlet part and the rear-end exit part is rotatably installed in the remnant recovery part 52c.

When the gate 63 is disposed at the position indicated by the solid line in FIG. 6 during the grain-grain sorting operation, the front end inlet of the remnant collecting part 52c is opened to allow the sorting part 52a and the remnant collecting part 52c to pass through. The rear end outlet of the recovery part 52c is closed and the recovered stones are separated from the sorting part 52a by the swinging of the sorting case 52 and the blowing air from the blower 56 in this state. .

If the gate 63 is placed at the position indicated by the dashed line in FIG. 6 after the supply of the grain kernel from the supply hopper 61 is stopped, the front end inlet of the remnant collecting part 52c is closed, and the sorting part 52a and the remaining stones are At the same time as the recovery part 52c is blocked, the rear end exit of the remnant recovery part 52c is opened and is accumulated on the remnant recovery part 52c due to the swing of the sorting case 52 and the blowing from the blower 56. The rubble is discharged through the rubble discharge pail 62.

In the conventional separator, the sorting case 52 and the blower 56 are supported by the pair of supporting rods 53 and 54 in the main body 51 so as to be able to swing integrally, as shown in FIG. 7. When the oscillating motion is applied to the sorting case 52 and the blower 56 by the rotation of the eccentric wheel 58, the porous sorting plate 55 of the sorting case 52 is centered on the swinging point P2 near the rear end thereof. It is reciprocating.

The swing direction is reversed at the front of the grain kernel outlet port 52b and the rear side of the dust recovery part 52c on the basis of the swing point P2 of the porous sorting plate 55, and the blowing direction from the blower 56 is also reversed. Fluctuate.

Therefore, in the vicinity of the rocking point P2 of the porous sorting plate 55, the force to return to the sorting unit 52a side with respect to the rubble that is sorted on the sorting unit 52a and moved to the remnant collecting port 52c, acts as a grain. The force which tries to return to the after-sand recovery part 52c side with respect to the grain grain moved to the discharge port 52b side acts.

Therefore, there is a problem in that the screening grade is again mixed in the grains or the selected grains are mixed in the grains, so that the screening degree is reduced and the screening takes time.

In addition, in the conventional separator, the blower 56 is fixed to the lower part of the sorting case 52, and the sorting case 52 and the blower 56 are installed so that they cannot be removed at a predetermined position in the main body 51. Residual recovery portion 52c of the case 52 is formed to have a narrower width than the selection portion 52a, and the gate 63 for opening and closing the front entrance and rear end exit portions is rotated in the narrow residual recovery portion 52c. Since it is possible to install, the unselected grain remaining in the sorting portion 52a of the sorting case 52 cannot be completely removed after the sorting operation of the grains is finished, and the porous sorting plate of the sorting case 52 ( 55) There was a problem that made it difficult to clean the stomach.

In addition, the configuration for discharging the rubble accumulated in the rubble recovering unit 52c is complicated, and at the time of discharging the rubble, the swing of the sorting case 52 is rotated while the gate 63 is rotated in the swinging state of the sorting case 52. And it is necessary to discharge | eject the residual stones from the overdraft collection part 52c by blowing from the blower 56, and there also exists a problem that the operation | work is difficult.

The present invention is to solve the above problems and its main object is to improve the degree of screening while shortening the time required for screening by preventing the screening of remnants from being mixed in the grains again or the screening of the selected grains into the stones. Another object of the present invention is to make it easy to clean the porous screen of the sorting case by completely removing the unselected grains remaining in the sorting part of the sorting case after the end of the sorting operation of the grains. In addition, the present invention is to enable easy discharge of the accumulated stones accumulated in the remnant collection unit after the end of the sorting operation of grain grains with a simple discharge configuration.

According to the present invention, a sorting case having a porous sorting member on the bottom thereof is disposed in an inclined state in the main body, a blower is installed below the sorting case, and the sorting case is swung, and air in the sorting case is passed through the porous sorting member from the blower. By discharging the grains of grains, including the residues supplied to the sorting case, from the sorting section on the porous sorting member, the selected grains are discharged to the grains grain outlet of the sorting case, and the sorted stones are sorted out. In the separator for returning to the collecting part, the first and second supporting rollers are installed in the main body at predetermined intervals, and the first and second inclined grounds which are supported on the supporting rollers are formed on the lower surface of the sorting case. , Between the main body and the sorting case to impart a reciprocating motion in an inclined direction with respect to the sorting case Installing the driving mechanism, and is made By forming such that the first inclined side surface which is located the angle of inclination of each inclined surface of grain kernels outlet side of the bottom surface of the screening case greater than the second sloping surface which is located jandol recovery side.

The drive mechanism of the present invention includes an eccentric wheel rotatably supported in the main body, a contact member protruding from the sorting case so as to contact the eccentric wheel, and the sorting case in inclined direction such that the contact member is pressed against the eccentric wheel. Compression means for exerting a force on one side.

In addition, the blower of the present invention is fixedly disposed in the main body so as to correspond to the bottom of the sorting case, and the sorting case is detachably supported in the main body by contact of each inclined ground surface with respect to each supporting roller.

In the sorting case of the present invention, a partition member partitioning into a remnant collection part and a sorting part is installed, and the partition member is movable at a partition position between the sorting part and the remnant recovery part, that is, between the sorting part and the residing part. Install it.

1 is a partially cutaway perspective view of the separator according to the present invention

2 is a side sectional view of an embodiment of the present invention separator;

Figure 3 is an enlarged perspective view showing the sorting case of the separator according to the present invention

Figure 4 is an enlarged yaw side cross-sectional view showing the rocking configuration of the present invention selection case

Figure 5 is a sectional side view showing the yaw motion of the screening case of the present invention

6 is a side sectional view showing a conventional separator;

Figure 7 is a side view illustrating the rocking motion of the perforated separator plate of the conventional stone separator

<Description of the symbols for the main parts of the drawings>

11 body 11a opening 12 support plate

15: first support roller 16: second support roller 17: selection case

17a: sorting section 17b: grain kernel outlet 17c: fine stone recovery section

17d: section plate 18: porous separation plate 19: first slope ground

20: second slope ground 21: drive mechanism 22: eccentric ring

23: contact plate 24: compression spring 26: blower

27: fan case 28: fan 30: motor

35: supply hopper 39: support 40: partition plate

41: leaf spring P1: rocking point A1, A2: inclination angle

An embodiment of the present invention will be described in detail with reference to FIGS. 1 to 5.

The main body 11 is formed in a box shape and an opening 11a is formed in the front surface (left side of FIG. 2), and a pair of support plates 12 (only one shown) are provided at a predetermined interval inside the main body 11. It is installed between the support plate 12, the rotating shaft 13 and the support shaft 14 has a different height and is installed rotatably before and after a predetermined interval.

A pair of first support rollers 15 (only one shown) are formed at a predetermined interval on the rotation shaft 13, and a pair of second support rollers 16 are formed on the support shaft 14 so as to correspond to the first support rollers 15 ( Only one) is formed at a predetermined interval.

As shown in FIGS. 2 and 3, the sorting case 17 is formed in a box shape without blocking the upper surface thereof, and a porous sorting plate 18 as a porous sorting member having a plurality of small pores 18a formed on the bottom thereof is installed. On both side surfaces of the sorting case 17, a pair of first inclined surface 19 and a second inclined surface 20 are formed at predetermined intervals before and after.

Then, the sorting case 17 is inserted into the main body 11 at the opening 11a so that the first inclined surface 19 is supported on the first support roller 15 while the second inclined ground 20 is supported by the second. Since the support is supported on the roller 16, the sorting case 17 is swingably and detachably installed in the inclined state in the main body 11.

A sorting unit 17a is formed on the porous sorting plate 18 of the sorting case 17, and a grain kernel outlet 17b is formed below the front end of the sorting case 17, and the residual stones are recovered above the rear end of the sorting case 17. The portion 17c is formed and the rear end of the residual stone recovery portion 17c is blocked by the end face plate 17d.

In addition, the inclination angle A1 of the first inclined ground surface 19 and the inclined angle A2 of the second inclined ground surface 20 with respect to the bottom surface of the sorting case 17 are different from each other, but the first inclined ground located at the grain grain outlet 17b side. The inclination angle A1 of the ground surface 19 is formed so as to be larger than the inclination angle A2 of the second inclined ground surface 20 located on the side of the residual salvage section 17c.

A drive mechanism 21 is provided between the main body 11 and the sorting case 17 to impart a reciprocating motion in an inclined direction with respect to the sorting case 17 and between the first supporting rollers 15 on the rotary shaft 13. The contact plate 23 as a contact member protrudes in an inclined shape on the lower surface of the sorting case 17 so that the eccentric wheel 22 is mounted and so as to be in contact with the eccentric wheel 22.

In the main body 11, a mounting plate 25 on which the compression spring 24 is pressed is mounted, and the front end of the compression spring 24 is joined to the end face plate 17d of the sorting case 17 and attached to the compression spring 24. As a result, the sorting case 17 is pushed in the inclined direction, whereby the contact plate 23 is pressed against the eccentric wheel 22 to be contacted, while the eccentric wheel 22 is indicated by the dashed line in the state indicated by the solid line in FIG. 4. When it is rotated to the sorting case 17, the moving force is applied to the rear in the inclined direction, and each inclined surface 19, 20 by the compression spring 24 is in contact with the supporting rollers (15) and (16) The case 17 is rocked to the rear portion upwards.

In addition, when the eccentric wheel 22 is rotated in the state indicated by the dashed line in FIG. 4 in the solid line, the selection case 17 is given a moving force in the forward inclination direction by the compression spring 24. The inclined surfaces 19 and 20 are in contact with the support rollers 15 and 16, and the sorting case 17 is swung downward.

That is, as shown in FIG. 5, when the moving force F1 is applied to the sorting case 17 backward, the first inclined ground surface 19 generates an inclined movement force F2a so that only the movement amount F3a is moved up and down. At 20, the inclined movement force F2b is generated, and only the movement amount F3b is moved up and down.

In this case, since the inclination angle A1 of the first inclined ground surface 19 with respect to the bottom of the sorting case 17 is formed to be larger than the inclination angle A2 of the second inclined ground surface 20, the first inclined ground surface 19 The inclined movement force F2a and the ascending movement amount F3a of the are larger than the inclined movement force F2b and the ascending movement amount F3b on the second inclined surface 20. On the contrary, the moving force forward is applied to the sorting case 17 so that the sorting case 17 is Even in the case of swinging downward, the downward movement amount of the first sloped ground surface 19 becomes larger than the downward movement amount of the second sloped ground surface 20 in the same manner as in the above-mentioned movement force F1.

Therefore, as shown in FIG. 4, the sorting case 17 is reciprocated around the swing point P1 separated from the perforated plate 18 in the inclined direction by the rotation of the eccentric wheel 22.

Meanwhile, a blower 26 is installed between the support plates 12 in the main body 11 corresponding to the bottom of the sorting case 17, and the blower 26 is a fan case 27 fixedly disposed between the support plates 12. And a fan 28 rotatably supported between the support plates 12 in the fan case 27, and the intake holes 29 are formed in the support plates 12.

The motor 30 is installed in the lower part of the main body 11, and the driving pulley 31 is mounted on the motor shaft 30a, and the driven pulley 32, 33 is attached to the shaft end of the fan 28 and the end of the rotation shaft 13; ) Is fitted and the belt 34 is fitted between the driven pulleys 32 and 33 and the driving pulley 31.

Accordingly, when the motor 30 is rotated, the fan 28 and the rotating shaft 13 are rotated so that the wind is sent in the sorting case 17 through the small holes 18a of the porous sorting plate 18 in the fan case 27. The sorting case 17 is reciprocated in the inclined direction by the eccentric wheel 22 together.

In the main body 11, a supply hopper 35 for accommodating grain kernels containing fine stones is installed on the upper part of the sorting case 17, and a supply port 36 is formed at the bottom thereof, and an operation is provided at the supply port 36. The shutter 37 on which the lever 38 is mounted is disposed to be openable and openable.

Then, when the shutter 37 is opened and closed by the operation lever 38 and the opening and closing amount of the supply port 36 is added and subtracted, the grain kernel corresponding to the opening amount is supplied from the supply hopper 34 into the sorting case 17. Grain grains, including rubble, which are supplied into the sorting case 17 by the shaking of the case 17 and the blowing from the blower 26, are non-selected and sorted by the sorting unit 17a on the porous sorting plate 18. The grain kernel is discharged to the grain kernel outlet 17b of the sorting case 17 and the sorted remnant is recovered to the remnant recovering unit 17c at the rear end of the sorting case 17.

As shown in FIGS. 1 to 4, a pair of supports 39 are extended in the vertical direction on both side inner surfaces of the rear end portion of the sorting case 17, and the sorting portion of the sorting case 17 is provided on the support 39. A partition plate 40 having a partition portion 40a for partitioning between 17a and a remnant recovery portion 17c and a cover portion 40b for covering the upper side of the remnant recovery portion 17c is fitted to be movable. The leaf spring 41 is mounted on the lower surface of the cover portion 40b of the plate 40, and both ends thereof are in contact with both upper surfaces of the sorting case 17.

At the time of the sorting operation of the grain kernel, as shown in FIGS. 1 and 4, the partition plate 40 passes through the sorting portion 17a and the remnant recovering portion 17c by the compression force of the leaf spring 41. Because of this, the remnants selected by the sorting unit 17a are moved to the remnant recovering unit 17c after passing through the bottom of the partition 40a of the partition plate 40.

In addition, after the sorting operation of the grain kernel, the front end of the sorting case 17 is lifted from the opening 11a of the main body 11, as indicated by the broken line in FIG. The separation case 17 is pulled out and pulled out from the opening 11a forward.

After that, when the partition plate 40 is pressed against the leaf spring 41 and pressed to the lower partition position, the partition plate 40a comes into contact with the perforated plate 18 so that the sorting unit 17a and the remaining stones are recovered. The partition 17c is partitioned.

In this state, the sorting case 17 is inclined forward and downward so that the unselected grains remaining in the sorting unit 17a on the porous sorting plate 18 do not mix with the rubble on the remnant collecting unit 17c. The grain kernel outlet 17b can be removed, and the sorting case 17 can then be inverted up and down to remove the accumulated stones in the calcined-recovery section 17c.

The operation of the separator according to the above configuration will be described in detail.

In order to sort the grains containing the rubble, the grains containing the rubble are accommodated in the supply hopper 35 and the motor 30 is operated by operating the start switch (not shown), thereby supporting the first support fitted to the rotary shaft 13. As the roller 15 and the eccentric wheel 22 are rotated, the fan 28 of the blower 26 is rotated.

As the eccentric wheel 22 rotates, the sorting case 17 reciprocates about the swing point P1 away from the perforation plate 18 in an inclined direction and winds in the sorting case 17 by the blower 26. Is blown.

When the feed port 36 of the feed hopper 3 is opened by the operation of the shutter 37 in this state, the grains including the rubble in the feed hopper 34 are supplied into the sorting case 17 and the grain including the rubble. The grains are gravity-selected by low-gravity grains and high-density rubble in the sorting section 17a on the porous sorting plate 18 by shaking the sorting case 17 and blowing from the blower 26. The grains are moved down all the way in the state of injured in the porous sorting plate 18 to be taken out of the grain grain outlet 17b, and the sorted rubble is moved to the rear part upwards from the porous sorting plate 18 to the residue recovering section 17c. It is recovered.

On the other hand, in the case of cleaning the porous sorting plate 18 of the sorting case 17 after the end of the sorting operation of grain kernels, the sorting case 17 is pulled forward from the opening 11a of the main body 11 and the partition plate 40 is removed. It moves to the partition part below and moves to block | block between the sorting part 17a and the remnant recovering part 17c.

In this state, the unselected grains remaining in the sorting unit 17a on the porous sorting plate 18 can be taken out from the grain kernel outlet 17b without mixing the residues on the small-sized part 17c. After that, the rubble accumulated in the rubble recovering unit 17c can be taken out and the top of the porous sorting plate 18 can be easily cleaned.

As described above, the separator 1 according to the present invention has the first and second support rollers 15 and 16 disposed in the main body 11 at predetermined intervals before and after the bottom of the sorting case 17 having the porous sorting plate 18. The first and second inclined grounds 19 and 20 are formed therein, and each of the inclined grounds 19 and 20 is supported by the support rollers 15 and 16 so that the sorting case 17 is the main body 11. It is installed in inclined state.

The inclination angles A1 and A2 of the inclined ground surfaces 19 and 20 with respect to the bottom surface of the sorting case 17 are the first inclined ground surface 19 located at the grain discharge portion 17b side of the front and lower sides. It is formed so as to be larger than the second inclined ground surface 20 located on the side of the fine stone recovery portion 17c, and the reciprocating motion is applied to the sorting case 17 in the inclined direction by the drive mechanism 21, so that the sorting case 17 is provided. Since the screen is oscillated, the sorting case 17 is reciprocated around the swing point P1 that is inclined upwardly from the porous sorting plate 18 during the sorting operation of the grain grain.

Therefore, the remnants sorted by the sorting unit 17a of the sorting case 17 are returned to the grain kernel outlet 17b and mixed in the grains again, or the sorted grains are returned to the remnant recovering unit 17c and mixed in the remnants. It is possible to prevent the grains and grains from being sorted out, so that the grains and the stones can be sorted accurately and in a short time.

In addition, the present invention provides a contact plate 23 protruding in the sorting case 17 such that the driving mechanism 21 contacts the eccentric wheel 22 rotatably supported in the main body 11 and the eccentric wheel 22. The configuration of the drive mechanism 21 is simplified since the compression spring 24 is provided as a compression means for pressing the sorting case 17 in an oblique direction so as to press the contact plate 23 against the eccentric wheel 22. The sorting case 17 can be rocked effectively.

In addition, the present invention is the blower 26 is fixedly arranged in the main body 11 so as to correspond to the bottom of the sorting case 17, the sorting case 17 is each inclined ground surface 19 for each support roller 15, 16 Since it is detachably supported in the main body 11 by the fitting of the 20, the sorting part 17a of the sorting case 17 in the state which removed the sorting case 17 from the main body 11 after completion | finish of the sorting operation of grain kernels. The unselected grains remaining in the) can be completely taken out and the pore sorting plate 18 of the sorting case 17 can be easily cleaned.

In the sorting case 17 of the present invention, a partition plate 40 for partitioning the remnant recovering unit 17c and the sorting unit 17a is provided, and the partition plate 40, the sorting unit 17a, and the residing unit are collected. Since the communication position and the partition position for partitioning between the sorting section 17a and the calcified recovering section 17c are movable so as to move between the 17b, they are accumulated in the rubble collection section 17 after the end of the sorting operation of the grain grain. The rubble can be easily discharged with a simple discharge configuration.

In addition, in the present invention, since the eccentric wheel 22 is rotatably connected to one of the supporting rollers 15, one of the supporting rollers 15 is integrally rotated with the eccentric wheels 22 during the sorting operation of the grain kernel. The sorting case 17 can be oscillated in a stable state, and the partition plate 40 is movably fitted to the supports 39 on both inner surfaces of the sorting case 17, and the sorting case 17 is provided on the partition plate 40. The plate spring 41 for contacting the upper surface of both sides and lifting the partition plate 40 upward is installed so that the partition plate 40 is allowed to pass through the sorting unit 17a and the remnant recovery unit 17c. You can keep the position.

In addition, this invention can also be actualized by changing embodiment as follows.

The eccentric wheel 22 is integrally rotatably connected to the second support roller 16 positioned opposite to the residual protrusion recovery portion 17c side of the sorting case 17, and the second support roller 16 is connected by the motor 30. ) May be configured to rotate together with the eccentric wheel 22,

The eccentric wheel 22 is installed separately from the first and second support rollers 15 and 16, and the eccentric wheels are driven by the motor 30 without the first and second support rollers 15 and 16 being rotated. (22) may be configured to rotate independently,

The contact plate 23 may be protruded at a right angle without inclining the lower surface of the sorting case 17.

The present invention can prevent the selected fine stones from being mixed in the grains or mixed into the fine grains, thereby improving the degree of screening and reducing the time required for screening. The instrument can rock the sorting case.

In addition, the present invention can completely remove the unselected grains remaining in the sorting part of the sorting case after the end of the sorting operation of the grains, so that the porous sorting plate of the sorting case can be easily cleaned. Afterwards, the rubble accumulated in the rubble collection unit can be easily discharged with a simple discharge configuration.

Claims (5)

The sorting case 17 having the porous sorting plate 18 at the bottom thereof is installed in an inclined state in the main body 11, and the blower 26 is installed below the sorting case 17 to swing the sorting case 17. In addition, the sorting unit 17a is disposed on the porous sorting plate 18 on the porous sorting plate 18 by feeding the wind from the blower 26 through the porous sorting plate 18 in the sorting case 17. ) And the selected grains are discharged to the grain kernel outlet (17b) of the sorting case (17), and the sorted rubble is collected in the stone sorter to be recovered to the resid (17c) of the sorting case (17). In The first and second supporting rollers 15 and 16 are provided at predetermined intervals in the main body 11, and the lower surface of the sorting case 17 is contacted and supported on the respective supporting rollers 1 and 16. A drive mechanism 21 for forming the first and second inclined ground surfaces 19 and 20 and for providing a reciprocating motion in an inclined direction with respect to the sorting case 17 between the main body 11 and the sorting case 17. The first inclined ground surface (19c) side of the inclined angle of each inclined ground surface (19, 20) with respect to the bottom surface of the sorting case (17) to the grain grain outlet (17b) side is a residual stone recovery portion (17c) It is formed so that it may become larger than the 2nd inclined surface 20 located to the side. 2. The driving mechanism (21) according to claim 1, wherein the driving mechanism (21) is an eccentric wheel (22) rotatably supported in the main body (11), and a contact plate (23) protrudingly installed in the sorting case (17) so as to contact the eccentric wheel (22). And a compression spring (24) for applying a force in the inclined direction to the sorting case (17) to press the contact plate (23) against the eccentric wheel (22). The blower 26 is fixedly disposed in the main body 11 so as to correspond to the bottom surface of the sorting case 17, and the sorting case 17 is formed at each inclined ground surface for each supporting roller 15 and 16 ( 19) (20) A separator for sorting which is detachably supported in the main body (11) by the combination of (20). The partition plate 40 is provided in the sorting case 17. The partition plate 40 is partitioned into a remnant recovering unit 17c and a sorting unit 17a, and the partition plate 40 is divided into a sorting unit 17a and a remnant stone. A separation separator installed so as to be movable in a partition position passing between the recovery portions 17c. The separator according to claim 1, wherein the eccentric ring (22) is installed to rotate integrally with any one of the first support roller (15) or the second support roller (16).