CN111547524A

CN111547524A - Feeding device for garnet ore dressing

Info

Publication number: CN111547524A
Application number: CN202010313594.7A
Authority: CN
Inventors: 邱升伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-08-18
Anticipated expiration: 2040-04-20
Also published as: CN111547524B

Abstract

The invention relates to a feeding device, in particular to a feeding device for garnet ore dressing. The technical problem is how to design a feeding device which can replace manpower to feed, is labor-saving and has high working efficiency for garnet ore dressing. The utility model provides a feeding device of garnet ore dressing, including: the device comprises a base, wherein an L-shaped plate is symmetrically and fixedly connected to the edge of one side of the base, and a fixed plate is fixedly connected between the inner sides of the L-shaped plate; and the gear motor is arranged in the middle of one side of the fixed plate far away from the base. According to the garnet feeding device, a proper amount of garnet is poured into the feeding frame, the speed reducing motor is started, the baffle can continuously swing up and down, the garnet intermittently falls into the experimental device due to the up-and-down swing of the baffle, the garnet is not required to be manually thrown into the experimental device by a person, labor is saved, hand ache is avoided, and the working efficiency is high.

Description

Feeding device for garnet ore dressing

Technical Field

The invention relates to a feeding device, in particular to a feeding device for garnet ore dressing.

Background

Garnet, a geological term of art, is one of the main diagenetic minerals of the upper mantle. Garnet crystals are similar to pomegranate seeds in shape and color, so they are called "garnet". The garnet with good color and high purity can be used as a gem. Garnet means "seed-like". Common garnet is red, but the color of the garnet is very wide, the color of the whole spectrum is almost covered, and the garnet needs to be added continuously when the garnet is subjected to mineral processing and needs to be tested.

At present, most of all are through the manual experimental apparatus of losing into with garnet of people, at first people need with the hand and grab a garnet, lose again in the experimental apparatus, in order to avoid garnet to pile up, the constant hand of waving makes even dropping of garnet in the experimental apparatus, so more hard, and the continuous round trip movement of people's hand needs, and a time is long, and the easy ache of arm leads to follow-up work efficiency to reduce.

Disclosure of Invention

In order to overcome the defects that the garnet uniformly falls off by continuously waving the hand, the garnet is relatively hard to work, the hand of a person needs to continuously move back and forth, and the arm is easy to ache, so that the subsequent working efficiency is reduced, the technical problem of the invention is as follows: the feeding device can replace manual feeding, is labor-saving and high in working efficiency.

The technical scheme is as follows: the utility model provides a feeding device of garnet ore dressing, including: the device comprises a base, wherein an L-shaped plate is symmetrically and fixedly connected to the edge of one side of the base, and a fixed plate is fixedly connected between the inner sides of the L-shaped plate; the speed reducing motor is arranged in the middle of one side of the fixing plate far away from the base; the transmission mechanism is arranged between the outer sides of the two L-shaped plates and is connected with an output shaft of the speed reducing motor; and the blanking mechanism is arranged between the end parts of the two L-shaped plates and one side of the base, is matched with the transmission mechanism and is used for enabling the garnet to drop intermittently.

In a preferred embodiment of the present invention, the transmission mechanism comprises: the sliding sleeve is fixedly connected to one side of the two L-shaped plates far away from the base; the sliding frame is slidably connected between the two sliding sleeves in a penetrating manner, and the other part of the sliding frame is slidably connected with one side, far away from the base and close to the outer side of one of the L-shaped plates of the blanking mechanism, of the L-shaped plate; the rubber clamping block is fixedly connected to one side, far away from the sliding frame, outside the sliding frame and is in contact fit with the blanking mechanism; the turntable is fixedly connected to the end part of the output shaft of the speed reducing motor; the push rod is fixedly connected to the eccentric position on one side of the rotary table far away from the fixed plate and penetrates through the middle of the sliding frame, and the push rod is in sliding fit with the sliding frame.

In a preferred embodiment of the present invention, the blanking mechanism comprises: the grooving plate is fixedly connected between the end parts of the two L-shaped plates; the baffle plates are symmetrically hinged between the two sides in the slotted disc and are used for blocking garnets; the first gear is fixedly sleeved at the end part of the baffle facing the sliding sleeve; the racks are slidably placed on the upper side and the lower side of the interior of the slotted disc close to the L-shaped plate, the rack far away from the base is meshed with the first gear far away from the rubber clamping block, and the rack close to the base is meshed with the first gear close to the rubber clamping block; the connecting rod is fixedly connected between the end parts of the two racks facing the rubber clamping block, the end part of the connecting rod, which is far away from the base, penetrates through the slotted disc and is in sliding fit with the slotted disc, and the connecting rod is positioned in the rubber clamping block and is matched with the rubber clamping block; the blanking frame is fixedly connected to one side of the base and is close to the grooving disc to be matched with the baffle.

In a preferred embodiment of the present invention, the present invention further comprises a control mechanism, wherein the control mechanism comprises: the screw rod is placed at one part of the slotted disc close to the connecting rod through threads and is matched with the connecting rod; the handle is fixedly connected to the end part of the screw rod far away from the connecting rod.

In a preferred embodiment of the present invention, the present invention further comprises a vibration mechanism, wherein the vibration mechanism comprises: the vertical plate is fixedly connected to the edge of one side of the grooving disc, which is far away from the base and is close to the screw rod; the vibration rod is slidably connected in the middle of one part of the vertical plate far away from the base in a penetrating manner, and the end part of the vibration rod far away from the vertical plate is in contact fit with the blanking frame; the stop block is fixedly sleeved on one part of the periphery of the vibration rod close to the blanking frame; the first spring is sleeved on the vibration rod, one end of the first spring is fixedly connected with one side of the stop block facing the vertical plate, and the other end of the first spring is fixedly connected with one side of the vertical plate facing the blanking frame; the guide block is fixedly connected to the end part, far away from the sliding sleeve, of the sliding frame and close to the screw rod; the L-shaped wedge block is slidably connected in the guide block in a penetrating manner and matched with the stop block; the second spring is sleeved on the L-shaped wedge block, one end of the second spring is fixedly connected with one side of the guide block far away from the grooving disc, and the other end of the second spring is fixedly connected with one part of the L-shaped wedge block far away from the fixing plate; and the wedge plate is fixedly connected to one side of the vertical plate, which is close to the vibration rod and faces the blanking frame, and is matched with the L-shaped wedge block.

In a preferred embodiment of the present invention, the method further comprises: the material distributing frame is fixedly connected to the middle of one side of the grooving disc far away from the blanking frame and is close to the baffle; the material distributing pieces are rotatably placed in the circumferential direction of the inner side surface of the material distributing frame; the third gear is fixedly sleeved in the circumferential middle of the outer side surface of the material distributing sheet; the second gear is fixedly sleeved on the output shaft of the speed reducing motor and is meshed with the third gear; and the screening net is fixedly connected to the inner side circumference of the material distribution frame far away from the grooving disc.

Compared with the prior art, the invention has the following advantages:

1. in pouring into the unloading frame through with appropriate amount garnet, start gear motor can be so that the continuous luffing motion of baffle, and the baffle luffing motion is then made to drop that garnet is intermittent type nature in experimental apparatus, need not in the manual experimental apparatus of losing into with garnet of people, and is more laborsaving, and avoids hand ache, and work efficiency is high.

2. Through the effect of vibrations mechanism, can be at the in-process of unloading, the continuous vibrations of beating to the unloading frame, also make the garnet vibrations just also, avoid the garnet card to be difficult to drop in the unloading frame.

3. Through the effect of material separating piece and sieve material net, can make garnet more even drop in experimental apparatus, avoid piling up.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

FIG. 2 is a schematic view of a first partial body structure according to the present invention.

FIG. 3 is a schematic view of a second partial body structure according to the present invention.

Fig. 4 is an enlarged schematic view of part a of the present invention.

Fig. 5 is a perspective view of a third embodiment of the present invention.

Fig. 6 is a perspective view of a fourth embodiment of the present invention.

FIG. 7 is a schematic view of a fifth partial body structure according to the present invention.

The parts are labeled as follows: 1. the device comprises a base, 101, an L-shaped plate, 102, a fixing plate, 2, an experimental device, 3, a speed reducing motor, 4, a transmission mechanism, 41, a rotary table, 42, a push rod, 43, a sliding sleeve, 44, a sliding frame, 45, a rubber clamping block, 5, a blanking mechanism, 51, a blanking frame, 52, a slotted disc, 53, a baffle, 54, a first gear, 55, a rack, 56, a connecting rod, 6, a control mechanism, 61, a screw rod, 62, a handle, 7, a vibrating mechanism, 71, a vibrating rod, 72, a stop block, 73, a first spring, 74, a wedge plate, 75, an L-shaped wedge block, 76, a second spring, 77, a vertical plate, 78, a guide block, 8, a second gear, 9, a material distribution frame, 10, a third gear, 11, a material distribution sheet, 12 and a material screening net.

Detailed Description

Although the present invention may be described with respect to particular applications or industries, those skilled in the art will recognize the broader applicability of the invention. Those of ordinary skill in the art will recognize other factors such as: terms such as above, below, upward, downward, and the like are used to describe the accompanying drawings and are not meant to limit the scope of the invention, which is defined by the appended claims. Such as: any numerical designation of first or second, and the like, is merely exemplary and is not intended to limit the scope of the invention in any way.

Example 1

Referring to fig. 1-5, a feeding device for garnet ore dressing comprises a base 1, L-shaped plates 101, a fixing plate 102, a speed reducing motor 3, a transmission mechanism 4 and a blanking mechanism 5, wherein the L-shaped plates 101 are fixedly connected to the front side and the rear side of the left side of the top of the base 1, the fixing plate 102 is fixedly connected between the upper portion of the inner right side surface and the inner top of the L-shaped plates 101 on the front side and the rear side, the speed reducing motor 3 is installed in the middle of the top of the fixing plate 102 in a bolt connection mode, the transmission mechanism 4 is arranged between the upper portions of the outer side surfaces of the L-shaped plates 101 on the front side and the rear side, the transmission mechanism 4 is connected with an output shaft of the speed reducing motor 3, the.

Drive mechanism 4 is including carousel 41, push rod 42, sliding sleeve 43, carriage 44 and rubber clamp 45, the outer right flank upper portion rigid coupling of L template 101 has sliding sleeve 43, sliding between front and back both sides sliding sleeve 43 and the outer top left side of rear side L template 101 be equipped with carriage 44, the outer left flank front side rigid coupling of carriage 44 has rubber clamp 45, rubber clamp 45 and the cooperation of unloading mechanism 5, gear motor 3's output shaft has carousel 41 through the coupling joint, carousel 41 top eccentric position rigid coupling has push rod 42, push rod 42 is located the downthehole rather than the cooperation in the middle of carriage 44.

The blanking mechanism 5 comprises a blanking frame 51, a slotted disc 52, baffles 53, a first gear 54, racks 55 and a connecting rod 56, the slotted disc 52 is fixedly connected between the left ends of the L-shaped plates 101 at the front side and the rear side, two baffles 53 are hinged between the left side and the right side in the slotted disc 52, the baffles 53 at the front side and the rear side are mutually matched, the first gear 54 is fixedly connected at the right end of the baffle 53, the blanking frame 51 is fixedly connected in the middle of the top of the base 1, the blanking frame 51 is positioned above the slotted disc 52, the discharging end of the blanking frame 51 is positioned above the slotted disc 52 and is in contact fit with the baffles 53, the racks 55 are arranged in the middle of the right side and the right side of the front part in the slotted disc 52 in a sliding manner, the lower rack 55 is positioned below the first gear 54 at the front side and is engaged with the upper rack 55 at the rear side, the connecting rod 56 is fixedly connected between, the upper part of the connecting rod 56 is positioned in the rubber clamping block 45 and matched with the rubber clamping block.

At first operating personnel removes this device to experimental apparatus 2 next door, and makes unloading mechanism 5 be located experimental apparatus 2 tops, pours suitable amount garnet into unloading mechanism 5 again, when operating personnel began the experiment through experimental apparatus 2, starts gear motor 3 and rotates, gear motor 3 rotates and drives drive mechanism 4 and operate, drive mechanism 4 operates and drives unloading mechanism 5 and operates, unloading mechanism 5 operates and makes garnet intermittent type nature drop to experimental apparatus 2 in experiment and experiment. After the experiment is finished, the speed reducing motor 3 is turned off, the transmission mechanism 4 stops operating, and the discharging mechanism 5 stops discharging the garnets.

When the reducing motor 3 is started, the reducing motor 3 rotates to drive the push rod 42 to rotate, the push rod 42 rotates to drive the sliding frame 44 to move back and forth, the sliding frame 44 moves back and forth to drive the rubber clamping block 45 to move back and forth, the rubber clamping block 45 moves back and forth to drive the blanking mechanism 5 to operate, and the blanking mechanism 5 operates to enable garnet to intermittently drop into the experiment device 2 for experiment. After the experiment is completed, the reduction motor 3 is turned off, the sliding frame 44 stops moving back and forth, and the transmission mechanism 4 stops operating.

Firstly, an operator pours a proper amount of garnet into the blanking frame 51, the baffle plate 53 blocks the garnet in the blanking frame 51, when the speed reducing motor 3 is started, the rubber clamping block 45 moves back and forth to drive the connecting rod 56 to move back and forth, the connecting rod 56 moves back and forth to drive the rack 55 to move back and forth, the rack 55 drives the first gears 54 on the front and rear sides to rotate inwards, the first gears 54 on the front and rear sides rotate inwards to drive the baffle plate 53 to swing downwards, the baffle plate 53 swings downwards to not block the garnet, the garnet falls into the experimental device 2 to be tested, and similarly, when the rack 55 moves backwards, the baffle plate 53 swings upwards to reset to continue to block the garnet, and the above steps are repeated, so that the garnet intermittently falls into the experimental device 2 to be tested. After the experiment is completed, the gear motor 3 is turned off, the rack 55 stops moving, and the baffle 53 also stops swinging.

Example 2

Referring to fig. 5, the present embodiment is different from embodiment 1 mainly in that the present embodiment further includes a control mechanism 6, the control mechanism 6 includes a screw 61 and a handle 62, the screw 61 is rotatably disposed on the right side of the front side of the slotted disc 52 through a screw, the screw 61 is engaged with the connecting rod 56, and the handle 62 is fixedly connected to the front end of the screw 61.

When a proper amount of garnet is filled in the blanking frame 51, an operator can twist the handle 62 to rotate in a positive and negative alternating manner according to requirements, the handle 62 rotates in the positive and negative alternating manner to drive the screw 61 to rotate in the positive and negative alternating manner, the screw 61 rotates in the positive and negative alternating manner to move back and forth through the threads, the handle 62 stops being twisted when the screw 61 moves back and forth to a proper position, when the connecting rod 56 moves forward, the connecting rod 56 contacts with the screw 61, the connecting rod 56 stops moving, the baffle plate 53 stops swinging down, the rubber clamping block 45 continues to move forward to be separated from the connecting rod 56, when the rubber clamping block 45 moves backward, the rubber clamping block 45 contacts with the connecting rod 56 again to drive the connecting rod 56 to move backward. In this way, the angle at which the shutter 53 swings can be adjusted, and the amount of garnet falling each time can also be adjusted.

Example 3

Referring to fig. 1, 6 and 7, the present embodiment is different from embodiment 1 and embodiment 2 mainly in that the present embodiment further includes a vibration mechanism 7, the vibration mechanism 7 includes a vibration rod 71, a stopper 72, a first spring 73, a wedge plate 74, an L-shaped wedge block 75, a second spring 76, a vertical plate 77 and a guide block 78, the vertical plate 77 is fixedly connected to the front side of the top of the slotted disc 52, the vibration rod 71 is slidably arranged in the middle of the upper portion of the vertical plate 77, the rear end of the vibration rod 71 is in contact fit with the front portion of the blanking frame 51, the stopper 72 is fixedly connected to the rear portion of the vibration rod 71, the first spring 73 is connected between the front side of the stopper 72 and the rear side of the vertical plate 77, the first spring 73 is sleeved on the vibration rod 71, the wedge plate 74 is fixedly connected to the right side of the upper portion of the rear side of the vertical plate 77, the guide block 78 is fixedly connected to the front end of the left side of the sliding frame 44, the L-, a second spring 76 is wound between the upper part of the L-shaped wedge block 75 and the top of the guide block 78.

Still including second gear 8, divide material frame 9, third gear 10, divide material piece 11 and sieve material net 12, the rigid coupling has branch material frame 9 in the middle of the fluting dish 52 bottom, divide being connected with of material frame 9 medial surface circumference middle part rotary type to divide material piece 11, divide material piece 11 lateral surface circumference middle part rigid coupling to have third gear 10, there is second gear 8 in the output shaft middle part of gear motor 3 through the coupling joint, second gear 8 and the meshing of third gear 10, divide material frame 9 medial surface circumference lower part rigid coupling to have sieve material net 12.

When the sliding rack 44 moves forwards, the sliding rack 44 drives the guide block 78 to move forwards, the guide block 78 moves forwards to drive the L-shaped wedge block 75 to move forwards, the L-shaped wedge block 75 moves forwards to contact with the stop block 72, the L-shaped wedge block 75 drives the stop block 72 to move forwards, the first spring 73 is compressed, the stop block 72 moves forwards to drive the vibration rod 71 to move forwards to be separated from the blanking frame 51, when the L-shaped wedge block 75 moves forwards to contact with the wedge block 74, the wedge block 74 enables the L-shaped wedge block 75 to move downwards, the second spring 76 is compressed, the L-shaped wedge block 75 moves downwards to be separated from the stop block 72, due to the action of the first spring 73, the stop block 72 moves backwards to drive the vibration rod 71 to move backwards, the vibration rod 71 moves backwards to perform striking vibration on the blanking frame 51, vibration is performed on garnets, when the sliding rack 44 moves backwards, the sliding rack 44 drives the L-shaped wedge block 75 to move backwards through the guide block 78, the L-shaped wedge 75 moves rearward out of engagement with the wedge plate 74, and the L-shaped wedge 75 moves upward to return due to the second spring 76, and at the same time, the L-shaped wedge 75 moves rearward to slide over the stopper 72. After the experiment is completed, the sliding frame 44 stops moving, the L-shaped wedge block 75 stops moving, and the vibration rod 71 stops beating the blanking frame 51. In this way, the garnet is prevented from falling down into the blanking frame 51.

When gear motor 3 starts, gear motor 3 still drives second gear 8 and rotates, and second gear 8 rotates and drives third gear 10 and rotate, and third gear 10 rotates and drives material distribution piece 11 and rotates, and then when garnet dropped from unloading frame 51, garnet dropped to material distribution frame 9 in, garnet and material distribution piece 11 contact, material distribution piece 11 then beats garnet and makes its dispersion, and the garnet of dispersion then drops to experimental apparatus 2 in through sieve material net 12. When the reduction motor 3 is turned off, the second gear 8 stops rotating, and the dispensing sheet 11 stops rotating. Therefore, the garnet can more uniformly fall into the experimental device 2, and accumulation is avoided.

While the disclosure has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that various other embodiments can be devised which do not depart from the scope of the invention as disclosed herein. Accordingly, the scope of the invention should be limited only by the attached claims.

Claims

1. The utility model provides a garnet ore dressing throw material device, characterized by including:

the device comprises a base (1), wherein an L-shaped plate (101) is fixedly connected to the edge of one side of the base (1) in a symmetrical mode, and a fixing plate (102) is fixedly connected between the inner two sides of the base;

the speed reducing motor (3), the speed reducing motor (3) is installed in the middle of one side of the fixing plate (102) far away from the base (1);

the transmission mechanism (4) is arranged between the outer sides of the two L-shaped plates (101) and is connected with an output shaft of the speed reducing motor (3);

and the blanking mechanism (5) is arranged between the end parts of the two L-shaped plates (101) and one side of the base (1), is matched with the transmission mechanism (4) and is used for enabling the garnet to drop intermittently.

2. A garnet beneficiation charging apparatus according to claim 1, wherein the transmission mechanism (4) comprises:

the sliding sleeve (43), the sliding sleeve (43) is fixedly connected to one side of the two L-shaped plates (101) far away from the base (1);

the sliding frame (44) is slidably connected between the two sliding sleeves (43) in a penetrating manner, and the other part of the sliding frame (44) is slidably connected with the outer side of one of the L-shaped plates (101) which is far away from the base (1) and close to the blanking mechanism (5);

the rubber clamping block (45) is fixedly connected to one side, far away from the sliding frame (44) of the sliding sleeve (43), of the outer side of the sliding frame (44), and is in contact fit with the blanking mechanism (5);

the turntable (41), the turntable (41) is fixedly connected to the end part of the output shaft of the speed reducing motor (3);

the push rod (42), push rod (42) rigid coupling in keep away from fixed plate (102) carousel (41) one side eccentric position, it runs through carriage (44) middle part, push rod (42) with carriage (44) sliding fit.

3. The garnet beneficiation feeding device according to claim 2, wherein the feeding mechanism (5) comprises:

the grooving plates (52) are fixedly connected between the end parts of the two L-shaped plates (101);

the baffle plate (53) is symmetrically hinged between two sides in the slotted disc (52) and is used for blocking garnets;

the first gear (54), the said first gear (54) is fixed and fitted to the end of the said back plate (53) facing to said sliding bush (43);

the racks (55) are slidably placed on the upper side and the lower side of the inner part of the slotted disc (52) close to the L-shaped plate (101), the rack (55) far away from the base (1) is meshed with the first gear (54) far away from the rubber clamping block (45), and the rack (55) close to the base (1) is meshed with the first gear (54) close to the rubber clamping block (45);

the connecting rod (56) is fixedly connected between the ends of the two racks (55) facing the rubber clamping block (45), the end of the connecting rod (56) far away from the base (1) penetrates through the slotted disc (52) to be in sliding fit with the slotted disc, and the connecting rod (56) is positioned in the rubber clamping block (45) and is matched with the rubber clamping block;

the blanking frame (51) is fixedly connected to one side of the base (1) and is close to the grooving disc (52) to be matched with the baffle (53).

4. A garnet beneficiation feeding apparatus according to claim 3, further comprising a control mechanism (6), wherein the control mechanism (6) comprises:

a threaded rod (61), said threaded rod (61) being placed by threading on a portion of said slotted disc (52) close to said connecting rod (56), cooperating with said connecting rod (56);

a handle (62), the handle (62) is fixedly connected to the end of the screw rod (61) far away from the connecting rod (56).

5. The garnet beneficiation feeding device according to claim 4, further comprising a vibration mechanism (7), wherein the vibration mechanism (7) comprises:

a vertical plate (77), wherein the vertical plate (77) is fixedly connected to one side edge position of the slotted disc (52) which is far away from the base (1) and close to the screw rod (61);

the vibration rod (71), the vibration rod (71) is slidably connected to the middle of one part of the vertical plate (77) far away from the base (1), and the end part of the vibration rod far away from the vertical plate (77) is in contact fit with the blanking frame (51);

the stop block (72) is fixedly sleeved on one part of the periphery of the vibration rod (71) close to the blanking frame (51);

the first spring (73) is sleeved on the vibration rod (71), one end of the first spring (73) is fixedly connected with one side, facing the vertical plate (77), of the stop block (72), and the other end of the first spring (73) is fixedly connected with one side, facing the vertical plate (77), of the blanking frame (51);

the guide block (78), the said guide block (78) is affixed to the end of the said carriage (44) far away from the said sliding bush (43) and close to the said threaded spindle (61);

the L-shaped wedge block (75), the L-shaped wedge block (75) is slidably penetrated in the guide block (78) and is matched with the stop block (72);

the second spring (76) is sleeved on the L-shaped wedge block (75), one end of the second spring (76) is fixedly connected with one side of the guide block (78) far away from the slotted disc (52), and the other end of the second spring is fixedly connected with one part of the L-shaped wedge block (75) far away from the fixing plate (102);

the wedge plate (74) is fixedly connected to one side, close to the vibration rod (71), of the vertical plate (77) facing the blanking frame (51), and is matched with the L-shaped wedge block (75).

6. The garnet beneficiation feeding device according to claim 5, further comprising:

the material distributing frame (9) is fixedly connected to the middle of one side, far away from the blanking frame (51), of the grooving disc (52) and close to the baffle plate (53);

the distributing sheet (11) is rotatably placed on the circumferential direction of the inner side surface of the distributing frame (9);

the third gear (10) is fixedly sleeved in the circumferential middle of the outer side surface of the distributing sheet (11);

the second gear (8) is fixedly sleeved on an output shaft of the speed reducing motor (3) and meshed with the third gear (10);

the screening net (12), screening net (12) rigid coupling in keep away from the fluting dish (52) divide material frame (9) inboard circumference.