CN219990350U

CN219990350U - Logistics conveying belt with cleaning function

Info

Publication number: CN219990350U
Application number: CN202320423662.4U
Authority: CN
Inventors: 谢智
Original assignee: CHIZHOU Co OF ANHUI TOBACCO CORP
Current assignee: CHIZHOU Co OF ANHUI TOBACCO CORP
Priority date: 2023-03-08
Filing date: 2023-03-08
Publication date: 2023-11-10
Anticipated expiration: 2033-03-08

Abstract

The utility model discloses a logistics conveying belt with a cleaning function, which belongs to the technical field of logistics and comprises a conveying table, electric conveying rollers, a leather conveying belt, a cleaning groove, a waste water groove, a fixing frame and a supporting frame, wherein the electric conveying rollers are rotatably arranged on the front side and the rear side of the two ends of the top of the outer wall of the conveying table through bearings, the leather conveying belt is arranged between the outer sides of the electric conveying rollers in a transmission manner, and the cleaning groove is fixedly arranged at one end of the bottom of the outer wall of the conveying table. According to the utility model, the water pump is started to guide clear water in the water tank into the inner side of the cleaning roller from the water guide groove through the water guide pipe, so that the rapidly-rotating cleaning roller throws the clear water from the water outlet holes to the surfaces of a large number of brushes through centrifugal force, after the large number of brushes are soaked, the rotating cleaning roller drives the large number of brushes on the outer wall to continuously flap on the surface of the leather conveyor belt, dirt and dust on the surface of the leather conveyor belt are cleaned, and sewage is led out from the waste water groove at the bottom of the cleaning tank into the waste water tank for collection.

Description

Logistics conveying belt with cleaning function

Technical Field

The utility model belongs to the technical field of logistics, and particularly relates to a logistics conveying belt with a cleaning function.

Background

The logistics is to carry out classified delivery to each transportation point or delivery point through a plurality of conveyor belts by taking storage as a center on a large number of cargoes or objects, and the cleaning of the conveyor belts for conveying a large number of disordered cargoes is needed to be paid attention to at any time, so that the influence on the conveying of cargoes is avoided, and therefore, a conveyor belt is needed.

According to the searching, a physical distribution conveyor belt cleaning device with a patent number of CN202220979258.0 is found, the physical distribution conveyor belt cleaning device has the advantages that the position of the dust removing scrubbing brush is convenient to adjust and process through the cooperation among the set screw rod, the screw block and the adjusting plate, so that the dust removing scrubbing brush is convenient to replace, the dust removing scrubbing brush is convenient to detach and replace through the cooperation among the set installation sliding block, the limit sliding rod, the nut, the reset spring, the sliding plate and the limit clamping plate, and dust on the surface of the conveying belt body can be cleaned through the set dust removing scrubbing brush; the disadvantages are as follows:

when the worker uses the logistics conveyor belt cleaning device to clean a conveyor belt which is used for conveying and processing a large amount of wrapped objects for a long time, the screw is screwed to drive the ash cleaning plate brush to move and contact the surface of the conveyor belt, dust on the surface of the conveyor belt in continuous transmission is scraped, dirt and sundries are generally adhered to the surface of the conveyor belt except dust, dirt and impurities cannot be scraped well through the ash cleaning plate brush, the dirt and impurities are caused to remain on the surface of the conveyor belt for a long time, and the dirt and impurities can be easily taken away by the conveyed objects when the other objects are conveyed and processed later, so that the objects are polluted.

Disclosure of Invention

The utility model aims at: in order to solve the problem that the cleaning effect of the cleaning device of the logistics conveyor belt is not ideal, the logistics conveyor belt with the cleaning function is provided.

The technical scheme adopted by the utility model is as follows: the utility model provides a commodity circulation conveyer belt with clean function, includes transport table, electronic transfer roller, cortex conveyer belt, clean groove, waste water tank, mount and support frame one, both sides all rotate through the bearing and are provided with electronic transfer roller around transport table outer wall top both ends, the transmission is provided with the cortex conveyer belt between the electronic transfer roller outside, transport table outer wall bottom one end fixed mounting has clean groove, clean groove outer wall bottom one end embedding is provided with the waste water tank, transport table outer wall bottom one end fixed mounting has the mount, be provided with support frame one in the middle of the clean groove inboard, support frame one outside top is provided with and carries out clear high-efficient clean mechanism to the one side of leather conveyer belt frequent contact article, support frame one outside top is provided with the high frequency that gets rid of impurity etc. to leather conveyer belt surface and rocks edulcoration mechanism.

The high-efficiency cleaning mechanism comprises a cleaning roller, water outlet holes, brushes, a servo motor A, a water guide groove, a water tank, a water pump and a wastewater tank, wherein the cleaning roller is arranged between the left side and the right side of the two ends of the top of the outer wall of the support frame in a rotating mode through bearings, the cleaning roller is six and is arranged in parallel at equal intervals, the cleaning roller is arranged in a hollow cylindrical mode, the servo motor A is fixedly installed at the bottoms of the two ends of the inner wall of the support frame, the servo motor A is six and is arranged in parallel at equal intervals, the servo motor A is arranged between an output shaft matched with the outer side and the cleaning roller through chain transmission, a water outlet hole is formed in the water outlet hole in an embedded mode, the water outlet hole is formed in an equidistant mode and is arranged in a parallel mode and is arranged in a surrounding mode, a hairbrush is fixedly installed on the outer wall of the cleaning roller, the hair brush is a plurality of the same number, the hair guide groove is arranged in an equidistant mode and is arranged in a surrounding mode, the water guide groove is fixedly installed on the left side and the two sides of the two ends of the outer wall of the support frame in a corresponding to each side of the outer wall, the outer wall of the cleaning roller is arranged at the side of the outer wall, the outer wall of the cleaning roller is arranged in a position of the water guide groove is close to the water guide groove, the water guide groove is arranged at the other end of the water guide groove is fixedly arranged between the water guide groove is close to the water pump through the water guide groove, and the water pump is arranged at the other end of the water guide groove is arranged at the end of the outer end of the water pump.

The high-frequency shaking impurity removing mechanism comprises a conveying roller B, two telescopic rods, a second supporting frame, a conveying roller C, a servo motor B and eccentric wheels, wherein the conveying roller B is arranged on the upper side and the lower side of the two ends of the inner wall of the cleaning groove in a rotating mode through bearings, the telescopic rods are fixedly arranged in the middle of the top of the inner wall of the cleaning groove, the two telescopic rods are arranged in parallel front and back, springs are arranged on the outer sides of the telescopic rods in a matched mode, the second supporting frame is fixedly arranged between the bottom of the outer wall of the telescopic rods and the top of the outer wall of the first supporting frame, the conveying roller C is arranged on the upper side and the lower side of the outer wall of the second supporting frame in a rotating mode through bearings, the leather conveying belt is arranged between the opposite conveying roller B and the opposite conveying roller C in a transmission mode, the servo motor B is fixedly arranged on the two ends of the top of the inner wall of the cleaning groove, the opposite sides of the servo motor B are connected with the eccentric wheels through output shafts, and the outer surfaces of the conveying roller B and the conveying roller C are made of butadiene rubber.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. this kind of commodity circulation conveyer belt with cleaning function is through being provided with cleaning roller and brush, can make the staff open a plurality of servo motor A and drive the cleaning roller through the chain and pass through the bearing pivoted simultaneously, open the water pump and lead into the cleaning roller inboard in the water tank is passed through the aqueduct from the guiding gutter, make quick pivoted cleaning roller throw out inside clear water from the apopore to a large amount of brush surfaces through centrifugal force, soak the back with a large amount of brushes, pivoted cleaning roller will drive outer wall a large amount of brushes and constantly beat on the leather conveyer belt surface, carry out the cleaning treatment to leather conveyer belt surface dirt dust, make sewage derive to the waste water incasement from cleaning tank bottom waste water tank and collect, improve the effect that can clear away leather conveyer belt surface dust debris fast.

2. This kind of commodity circulation conveyer belt with clean function is through being provided with the eccentric wheel, can make the staff open two servo motor B again and drive the eccentric wheel and rotate at the same speed, make the eccentric wheel constantly strike the support frame drive telescopic link and outside spring constantly stretch out and draw back the time, constantly transmit to the leather conveyer belt between two pairs of butadiene rubber material conveying rollers B, will drive the leather conveyer belt through the support frame outer wall butadiene rubber material conveying roller C that constantly rocks and produce high frequency and rock, can avoid producing friction and cause wearing and tearing between conveying roller B and conveying roller C and the leather conveyer belt, get rid of the debris etc. that adhere to the leather conveyer belt surface when contacting with a large amount of parcel articles with leather conveyer belt surface, and together derive to collect in the waste water tank with sewage from clean tank bottom waste water tank, improve the effect of carrying out quick clear away to leather conveyer belt surface adhering to debris.

Drawings

FIG. 1 is a schematic diagram of a schematic cross-sectional front view of a logistics conveyor in accordance with the present utility model;

FIG. 2 is a schematic diagram of a schematic cross-sectional front view of a cleaning tank in accordance with the present utility model;

FIG. 3 is a schematic diagram of the enlarged construction of FIG. 2 at A in accordance with the present utility model;

fig. 4 is a schematic diagram showing the front perspective structure of the support frame in the utility model.

The marks in the figure: 1. a conveying table; 101. an electric transfer roller; 102. a cortical conveyor belt; 103. a cleaning tank; 104. a waste water tank; 105. a fixing frame; 2. a conveying roller B; 3. a telescopic rod; 301. a second supporting frame; 302. a conveying roller C; 4. a first supporting frame; 401. a cleaning roller; 402. a water outlet hole; 403. a brush; 404. a servo motor A; 5. a water guide groove; 6. a water tank; 601. a water pump; 7. a waste water tank; 8. a servo motor B; 801. an eccentric wheel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the utility model, the following components are added:

embodiment one: referring to fig. 1-4, a logistics conveyor belt with cleaning function, including carrying platform 1, electronic transfer roller 101, leather conveyer 102, clean groove 103, waste water groove 104, mount 105 and support frame one 4, carry the front and back both sides at platform 1 outer wall top both ends all through the bearing rotation be provided with electronic transfer roller 101, the transmission is provided with leather conveyer 102 between the electronic transfer roller 101 outside, carry platform 1 outer wall bottom one end fixed mounting has clean groove 103, clean groove 103 outer wall bottom one end embedding is provided with waste water groove 104, carry platform 1 outer wall bottom one end fixed mounting has mount 105, be provided with support frame one 4 in the middle of the clean groove 103 inboard, support frame one 4 outside top is provided with the high-efficient cleaning mechanism that can carry out the cleanness to the one side that leather conveyer frequently contacted article, support frame one 4 outside tops are provided with the high-frequency that gets rid of leather conveyer surface impurity etc. and shake edulcoration mechanism.

Referring to fig. 1 to 4, further, the high-efficiency cleaning mechanism is composed of a cleaning roller 401, a water outlet 402, a brush 403, a servo motor a404, a water guide tank 5, a water tank 6, a water pump 601 and a wastewater tank 7;

the cleaning rollers 401 are rotatably arranged between the left side and the right side of the two ends of the top of the outer wall of the first support frame 4 through bearings, six cleaning rollers 401 are arranged in parallel at equal intervals, the cleaning rollers 401 are arranged in a hollow cylindrical shape, water outlets 402 are embedded between the outer wall and the inner wall of the cleaning rollers 401, a plurality of water outlets 402 are arranged in parallel at equal intervals and are arranged around, brushes 403 are fixedly arranged on the outer wall of the cleaning rollers 401, a plurality of brushes 403 are arranged in parallel at equal intervals and are arranged around, servo motors A404 are fixedly arranged at the bottoms of the two ends of the inner wall of the first support frame 4, six servo motors A404 are arranged in parallel at equal intervals, the servo motors A404 are arranged through chain transmission between the outer side matched output shafts and the cleaning rollers 401, water guide grooves 5 are fixedly arranged on the left side and the right side of the two ends of the outer wall of the first support frame 4, a plurality of water guide grooves 5 are arranged, every three are equidistantly arranged in parallel, two ends of the outer wall of the cleaning roller 401 are rotatably arranged on the inner sides of the opposite water guide grooves 5 through bearings and rubber sealing rings, a water tank 6 is fixedly arranged at one end of the top of the outer wall of the fixing frame 105, a water pump 601 is embedded in the front end of the outer wall of the water tank 6, the water pump 601 is connected with a plurality of water guide grooves 5 through water guide hoses, the other end of the top of the outer wall of the fixing frame 105 is close to the outer bottom of the waste water groove 104, a waste water tank 7 is arranged at the outer side of the waste water groove 104, when workers need to convey a large number of wrapped objects through a logistics conveying belt, a servo motor matched with the electric conveying roller 101 is turned on to drive the electric conveying roller 101 to drive an outer leather conveying belt 102 to drive through the bearings, after the large number of wrapped objects are placed on the surface of the leather conveying belt 102 at one end of the top of the conveying table 1, and when the large number of wrapped objects are conveyed to the other end of the leather conveying belt 102 through the driven leather conveying belt 102, when a worker needs to clean the surface of the leather conveyor belt 102 regularly, a servo motor matched with the electric conveyor roller 101 is started to drive the electric conveyor roller 101 to drive the outer leather conveyor belt 102 to drive through a bearing, so that the leather conveyor belt 102 passes through the inner side of the cleaning tank 103, a plurality of servo motors A404 are started by the worker to drive the cleaning roller 401 through a chain to rotate through the bearing, a water pump 601 is started to guide clear water in the water tank 6 into the inner side of the cleaning roller 401 from the water guide tank 5 through a water guide pipe, the rapidly rotating cleaning roller 401 throws clear water out of the water outlet 402 to the surfaces of a plurality of brushes 403 through centrifugal force, after the plurality of brushes 403 are soaked, the rotating cleaning roller 401 drives the outer wall of the plurality of brushes 403 to continuously flap the surface of the leather conveyor belt 102, dirt on the surface of the leather conveyor belt 102 is cleaned, and sewage is led out of the waste 104 from the bottom of the cleaning tank 103 into the waste water tank 7 to be collected.

Referring to fig. 1, 2 and 4, the high-frequency shaking impurity removing mechanism is further composed of a conveying roller B2, a telescopic rod 3, a second supporting frame 301, a conveying roller C302, a servo motor B8 and an eccentric wheel 801;

the upper and lower both sides at clean groove 103 inner wall both ends all are provided with transfer roller B2 through the bearing rotation, fixed mounting has telescopic link 3 in the middle of the clean groove 103 inner wall top, telescopic link 3 has two, and be front and back juxtaposition setting, and telescopic link 3 outside is supporting to be provided with the spring, fixed mounting has support frame two 301 between support frame two 301 outer wall bottoms and the support frame one 4 outer wall tops, support frame two 301 outer wall upper and lower both ends all are provided with transfer roller C302 through the bearing rotation, and the transmission of cortex conveyer belt 102 sets up between relative transfer roller B2 and relative transfer roller C302 outside, clean groove 103 inner wall top both ends all fixed mounting has servo motor B8, servo motor B8 outside opposite face all has eccentric wheel 801 through the output shaft, transfer roller B2 and transfer roller C302 surface material is butadiene rubber. When the continuously driven leather conveyer belt 102 is cleaned by a large number of brushes 403 soaked on the outer wall of the cleaning roller 401, a worker opens two servo motors B8 to drive the eccentric wheels 801 to rotate at the same speed, so that when the eccentric wheels 801 continuously strike the second support frame 301 to drive the telescopic rods 3 and the outer springs to continuously stretch, the leather conveyer belt 102 between the two pairs of butadiene rubber conveyer rollers B2 is continuously driven, the leather conveyer belt 102 is driven by the butadiene rubber conveyer rollers C302 on the outer wall of the continuously rocked second support frame 301 to shake at high frequency, abrasion caused by friction between the conveyer rollers B2 and C302 and the leather conveyer belt 102 can be avoided, sundries and the like attached to the surface of the leather conveyer belt 102 when the surface of the leather conveyer belt 102 contacts with a large number of wrapping objects are thrown off, and the sundries and the sewage are together led out of the waste water tank 104 at the bottom of the cleaning tank 103 into the waste water tank 7 for collection.

Referring to fig. 1-3, further, the electric conveying roller 101 is electrically connected with the storage battery through a matched servo motor and a control panel, and the servo motor a404, the water pump 601 and the servo motor B8 are electrically connected with the storage battery through the control panel.

Example two

As shown in fig. 1 and 2, in the present utility model, in addition to the embodiment in which the outer surfaces of the conveying roller B2 and the conveying roller C302 are made of butadiene rubber, the outer surfaces of the conveying roller B2 and the conveying roller C302 are made of nitrile rubber, and when the electric conveying roller 101 drives the leather conveying belt 102 to drive, the leather conveying belt 102 continuously passes through between the outer surfaces of the conveying roller B2 and the conveying roller C302, friction between the leather conveying belt 102 and the outer surfaces of the conveying roller B2 and the conveying roller C302 is increased, so that the driven leather conveying belt 102 drives the conveying roller B2 and the conveying roller C302 to rotate, and when the leather conveying belt 102 and the conveying roller B2 and the conveying roller C302 rub against each other, the surfaces of the nitrile rubber conveying roller B2 and the conveying roller C302 with tearing resistance can be avoided, and compared with the first embodiment, tearing caused by long-term contact between the driven leather conveying belt 102 and the conveying roller B2 and the conveying roller C302 can be avoided.

Working principle: firstly, when a worker needs to convey a large number of wrapped objects through a logistics conveying belt, a servo motor matched with an electric conveying roller 101 is started to drive the electric conveying roller 101 to drive an outer leather conveying belt 102 to drive through a bearing, after the large number of wrapped objects are placed on the surface of the leather conveying belt 102 at one end of the top of a conveying table 1, when the large number of wrapped objects are conveyed to the destination at the other end through the driven leather conveying belt 102, dust and sundries carried on the wrapped surface remain on the surface of the leather conveying belt 102, then when the worker needs to regularly clean the surface of the leather conveying belt 102, the worker starts the servo motor matched with the electric conveying roller 101 to drive the outer leather conveying belt 102 to drive through the bearing, so that when the leather conveying belt 102 passes through the inner side of a cleaning groove 103, the worker starts a plurality of servo motors A404 to drive the cleaning roller 401 through the bearing to rotate through a chain, the water pump 601 is turned on to guide clear water in the water tank 6 into the inner side of the cleaning roller 401 from the water guide tank 5 through the water guide pipe, so that the cleaning roller 401 which rotates rapidly throws clear water out of the water outlet holes 402 to the surfaces of a plurality of brushes 403 through centrifugal force, after the plurality of brushes 403 are soaked, the rotating cleaning roller 401 drives the plurality of brushes 403 on the outer wall to continuously flap on the surface of the leather conveyor belt 102, dirt and dust on the surface of the leather conveyor belt 102 are cleaned, the sewage is led out of the waste water tank 104 at the bottom of the cleaning tank 103 into the waste water tank 7 for collection, finally, the two servo motors B8 are turned on to drive the eccentric wheels 801 to rotate at the same speed, so that when the eccentric wheels 801 continuously strike the support frame two 301 to drive the telescopic link 3 and the outer springs to continuously stretch, the leather conveyor belt 102 between the two pairs of butadiene rubber material conveyor rollers B2 is continuously driven, the leather conveyor belt 102 is driven by the butadiene rubber conveyor roller C302 on the outer wall of the second supporting frame 301 to shake continuously to shake at high frequency, so that abrasion caused by friction between the conveyor roller B2 and the conveyor roller C302 and the leather conveyor belt 102 can be avoided, sundries and the like attached to the surface of the leather conveyor belt 102 when the surface of the leather conveyor belt 102 contacts with a large number of wrapping objects are thrown off, and the sundries and the like are together guided from the waste water tank 104 at the bottom of the cleaning tank 103 to the waste water tank 7 for collection.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. Logistics conveyor belt with cleaning function, including carrying platform (1), electronic transfer roller (101), cortex conveyer belt (102), clean groove (103), waste water groove (104), mount (105) and support frame one (4), the front and back both sides at transport platform (1) outer wall top both ends all rotate through the bearing and are provided with electronic transfer roller (101), the transmission is provided with cortex conveyer belt (102) between electronic transfer roller (101) outside, transport platform (1) outer wall bottom one end fixed mounting has clean groove (103), clean groove (103) outer wall bottom one end embedding is provided with waste water groove (104), transport platform (1) outer wall bottom one end fixed mounting has mount (105), be provided with support frame one (4) in the middle of clean groove (103) inboard, its characterized in that: the high-efficiency cleaning mechanism capable of cleaning one surface of the leather conveyor belt, which is often in contact with objects, is arranged at the top of the outer side of the first support frame (4), and the high-frequency shaking impurity removing mechanism capable of removing impurities on the surface of the leather conveyor belt is arranged at the top of the outer side of the first support frame (4).

2. A flow conveyor belt with cleaning function as claimed in claim 1, characterized in that: the efficient cleaning mechanism consists of a cleaning roller (401), a water outlet hole (402), a brush (403), a servo motor A (404), a water guide groove (5), a water tank (6), a water pump (601) and a wastewater tank (7);

the cleaning device is characterized in that a cleaning roller (401) is arranged between the left side and the right side of the two ends of the top of the outer wall of the first support frame (4) through bearing rotation, a water outlet (402) is embedded between the outer wall and the inner wall of the cleaning roller (401), a hairbrush (403) is fixedly arranged on the outer wall of the cleaning roller (401), servo motors A (404) are fixedly arranged at the bottoms of the two ends of the inner wall of the first support frame (4), six servo motors A (404) are arranged in parallel at equal intervals, the servo motors A (404) are arranged between the output shaft matched with the outer side and the cleaning roller (401) through chain transmission, water guide tanks (5) are fixedly arranged on the left side and the right side of the two ends of the outer wall of the first support frame (4), a water tank (6) is fixedly arranged at one end of the top of the outer wall of the first support frame (105), a water pump (601) is embedded in the front end of the outer wall of the water tank (6), the water pump (601) is connected with a plurality of water guide hoses, and the other ends of the outer wall of the top of the first support frame (105) are close to the outer bottom of a waste water tank (104) through the water guide tanks (7).

3. A flow conveyor belt with cleaning function as claimed in claim 1, characterized in that: the high-frequency shaking impurity removing mechanism consists of a conveying roller B (2), a telescopic rod (3), a second supporting frame (301), a conveying roller C (302), a servo motor B (8) and an eccentric wheel (801);

the cleaning device is characterized in that conveying rollers B (2) are respectively arranged on the upper side and the lower side of two ends of the inner wall of the cleaning groove (103) through bearings in a rotating mode, telescopic rods (3) are fixedly arranged in the middle of the top of the inner wall of the cleaning groove (103), the telescopic rods (3) are arranged in parallel front and back, springs are arranged on the outer sides of the telescopic rods (3) in a matched mode, two supporting frames (301) are fixedly arranged between the bottom of the outer wall of the telescopic rods (3) and the top of the outer wall of the first supporting frame (4), conveying rollers C (302) are respectively arranged on the upper end and the lower end of the outer wall of the second supporting frame (301) through bearings in a rotating mode, servo motors B (8) are respectively fixedly arranged on the two ends of the top of the inner wall of the cleaning groove (103), eccentric wheels (801) are respectively arranged on opposite faces on the outer sides of the servo motors B (8) through output shafts, and the outer surfaces of the conveying rollers B (2) and the conveying rollers C (302) are made of butadiene rubber.

4. A flow conveyor belt with cleaning function as claimed in claim 2, characterized in that: the cleaning rollers (401) are six, every three cleaning rollers are arranged in parallel at equal intervals, the cleaning rollers (401) are arranged in a hollow cylinder shape, the water outlet holes (402) are arranged in a plurality of parallel at equal intervals and are arranged in a surrounding manner, and the brushes (403) are arranged in a plurality of parallel at equal intervals and are arranged in a surrounding manner.

5. A flow conveyor belt with cleaning function as claimed in claim 2, characterized in that: the water guide grooves (5) are arranged in a plurality, every three water guide grooves are arranged in parallel at equal intervals, and two ends of the outer wall of the cleaning roller (401) are arranged on the inner sides of the opposite water guide grooves (5) in a rotating mode through bearings and rubber sealing rings.

6. A flow conveyor belt with cleaning function as claimed in claim 3, characterized in that: the cortical conveyor belt (102) is drivingly disposed between the opposing conveyor roller B (2) and the outer side of the opposing conveyor roller C (302).