Roller type fruit conveying device

Abstract

The utility model discloses a roller type fruit conveying device which comprises a machine frame, a guide rail, a rolling bar and a chain are arranged in the machine frame, the rolling bar and the chain are connected to form a carrier roller conveying belt structure, the fruit conveying part of the carrier roller conveying belt structure is a bearing section, the returning part of the carrier roller conveying belt structure is a returning section, and a first driving device is installed in the machine frame. The first driving device is used for driving the carrier roller conveying belt structure to move along the guide rail, the bearing section is connected with a sorting mechanism, the sorting mechanism adjusts the distance between rolling bars of the bearing section to sort fruits, a plurality of fruit conveying belts are installed between the bearing section and the returning section, and rolling bar cleaning mechanisms are arranged on the upper sides and the lower sides of the rolling bars of the returning section. The rolling bar cleaning mechanism is used for cleaning the surfaces of the contacted rolling bars. The upper face and the lower face of the rolling bar of the return section of the carrier roller conveying belt structure are cleaned, the cleaning effect is guaranteed, meanwhile, conveying and sorting of fruits above are not affected, and the production efficiency does not need to be affected due to shutdown cleaning.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fruit conveying device, in particular to a conveying device with fruit grading. BACKGROUND

[0002] In order to meet the diversified needs of the market, improve the sales price and profit, improve the brand image and competitiveness, the fruit to be sold needs to be graded by size to meet the needs of different consumers.

[0003] Chinese patent CN206184775U discloses a fruit grader, a variable-pitch transmission shaft with spiral grooves, so that the distance between the rolling rods increases as they move horizontally, and in this process, smaller fruits fall from the front end of the conveying platform and are collected, and larger fruits fall from the rear end of the conveying platform and are collected, thereby realizing the size grading and screening of fruits.

[0004] However, in the process of continuous revolution of the conveying belt structure composed of rolling rods and chains, the rolling rods continuously contact the fruits, and the rolling rods continuously accumulate pollution, which can easily pollute clean fruits and reduce fruit value, and the contaminated rolling rods can also reduce the sensitivity of fruit sorting and reduce the grading efficiency. UTILITY MODEL CONTENT

[0005] In view of the above prior art, the utility model provides a roller type fruit conveying device, which simultaneously cleans the rolling rod on both sides to ensure that the rolling rod is clean and has no dead angle, and ensures that the conveying device does not pollute the fruits during operation.

[0006] To achieve the above purpose, the technical scheme of the utility model embodiment is as follows:

[0007] A roller type fruit conveying device, comprising a rack, a guide rail, a rolling rod and a chain are arranged in the rack, the rolling rod and the chain are connected to form a carrier roller conveying belt structure, the part of the carrier roller conveying belt structure conveying fruits is a bearing section, the part of the carrier roller conveying belt structure returning to the original position is a return section, a first driving device is installed in the rack, the first driving device is used to drive the carrier roller conveying belt structure to move along the guide rail, the bearing section is connected with a sorting mechanism, the sorting mechanism comprises a variable-pitch screw shaft, both ends of the rolling rod are provided with rolling blocks, the rolling blocks are fitted with the threaded grooves on the variable-pitch screw shaft, the pitch of the threaded grooves on the variable-pitch screw shaft gradually increases, a second driving device is installed in the rack, the second driving device is used to drive the variable-pitch screw shaft to rotate, a plurality of fruit conveying belts are installed between the bearing section and the return section, the upper and lower sides of the rolling rod of the return section are provided with rolling rod cleaning mechanisms, and the rolling rod cleaning mechanisms are used to clean the surface of the contacted rolling rod.

[0008] Further, the upper and lower side roll cleaning mechanisms are staggered along the moving direction of the roll, and each roll cleaning mechanism comprises a first cleaning roller and a second cleaning roller, both of which are wrapped with a sponge, and the central axes of the first and second cleaning rollers are parallel to the central axis of the roll, both ends of the first and second cleaning rollers are provided with rotatable support devices for self-adaptive control of the rotation of the first and second cleaning rollers to different angles for cleaning the roll, and the rack is provided with a third driving device for driving the first and second cleaning rollers to rotate for cleaning the contacted roll.

[0009] Further, the rotatable support device comprises a fixed rod, one end of which is fixedly connected with the rack, and the other end is rotatably connected with a first support rod and a second support rod, a spring extension mechanism is connected between the second support rod and the fixed rod, and the same spring extension mechanism is connected between the first support rod and the second support rod, both ends of one spring extension mechanism are rotatably connected with the first support rod and the second support rod respectively, both ends of the other spring extension mechanism are rotatably connected with the second support rod and the fixed rod respectively, and the end of the first support rod away from the fixed rod is rotatably connected with a first rotating shaft, and the first cleaning roller is sleeved on the first rotating shaft, and the end of the second support rod away from the fixed rod is rotatably connected with a second rotating shaft, and the second cleaning roller is sleeved on the second rotating shaft.

[0010] Further, the length of the first support rod is equal to the sum of the radius of the roll and the radius of the second cleaning roller, the length of the second support rod is equal to the sum of the radius of the roll and the radius of the first cleaning roller, the central axis of the first cleaning roller is on the moving track of the roll, and the second cleaning roller is on the side of the moving track of the roll.

[0011] Further, the third driving device comprises a motor fixedly installed on the fixed rod, a driven rotating shaft is provided at the rotating connection points of the first and second support rods and the fixed rod, the motor is connected with the driven rotating shaft through a belt transmission member, and the first and second rotating shafts are both connected with the driven rotating shaft through a belt transmission member.

[0012] Further, the spring extension mechanism comprises a sleeve and a sliding rod, the sleeve is slidably connected with the sliding rod, a spring is arranged in the sleeve, and the spring is fixedly connected with the sleeve and the sliding rod respectively.

[0013] Further, the outer surfaces of the first and second cleaning rollers are both provided with a plurality of dovetail-shaped grooves, the grooves are arranged along the length direction of the first and second cleaning rollers, the outer surfaces of the first and second cleaning rollers are slidably connected with a plurality of arc-shaped sliding plates, the inner sides of the arc-shaped sliding plates are provided with dovetail-shaped protrusions, the sizes and lengths of the grooves and the protrusions are matched, and the sponge is fixedly connected to the outer side surfaces of the arc-shaped sliding plates.

[0014] The utility model discloses a beneficial effect lies in: the rolling lever has no self-rotating power, and the rolling lever is cleaned from both sides simultaneously, which can guarantee the cleaning effect.

[0015] Further, the both ends of the rolling lever cleaning roller are provided with rotatable supporting devices, the rolling lever pushes the cleaning roller to displace in the process of contacting with the cleaning roller, so that the contact surface of the cleaning roller and the rolling lever changes, and the rolling lever is cleaned more comprehensively, the first cleaning roller and the second cleaning roller below the rolling lever clean the lower semicircular surface of the rolling lever, and the first cleaning roller and the second cleaning roller above the rolling lever clean the upper semicircular surface of the rolling lever, so that the whole cleaning of the rolling lever is realized, and there is no dead angle. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole schematic view of a kind of roller fruit conveying device of the utility model;

[0017] Figure 2 It is the schematic view of the rolling lever cleaning mechanism of a kind of roller fruit conveying device of the utility model;

[0018] Figure 3 It is the schematic view of rotatable supporting device of a kind of roller fruit conveying device of the utility model;

[0019] Figure 4 It is the schematic view of elastic telescopic structure of a kind of roller fruit conveying device of the utility model;

[0020] Figure 5 It is the schematic view of cleaning roller structure of a kind of roller fruit conveying device of the utility model.

[0021] Explanation of drawings: 1, rack;2, first driving device;3, chain;4, guide rail;5, rolling lever;6, second driving device;7, variable pitch screw shaft;8, thread groove;9, fruit conveying belt;10, rolling block;11, motor;12, rolling lever cleaning mechanism;13, first cleaning roller;14, second cleaning roller;15, first support rod;16, second support rod;17, fixed rod;18, third driving device;19, elastic telescopic mechanism;20, first rotating shaft;21, second rotating shaft;22, driven rotating shaft;23, sleeve;24, sliding rod;25, spring;26, sponge;27, recess;28, arc-shaped slide plate;29, protrusion. DETAILED DESCRIPTION

[0022] The technical scheme of the utility model is further described in detail below in combination with the drawings and specific embodiments. Unless otherwise defined, all the technical and scientific terms used in the present application have the same meaning as commonly understood by those skilled in the art to which the utility model belongs. The terms used in the specification of the utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. In the following description, the expression "some embodiments" describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0023] In combination with the accompanying drawings, Figures 1 to 5 The utility model provides a kind of roller fruit conveying device, including rack 1, guide rail 4, roll lever 5 and chain 3 are equipped in rack 1, roll lever 5 and chain 3 are connected into carrier roller conveyor belt structure, the part of carrier roller conveyor belt structure conveying fruit is load-bearing section, the part of carrier roller conveyor belt structure returning to original position is return section, first driving device 2 is installed in rack 1, first driving device 2 is used to drive carrier roller conveyor belt structure moves along guide rail 4, load-bearing section is connected with sorting mechanism, sorting mechanism includes variable pitch screw shaft 7, the both ends of roll lever 5 are provided with roll block 10, roll block 10 is attached with the thread groove 8 on variable pitch screw shaft 7, the pitch of thread groove 8 on variable pitch screw shaft 7 gradually increases, second driving device 6 is installed in rack 1, second driving device 6 is used to drive variable pitch screw shaft 7 rotation, load-bearing section and return section are equipped with a plurality of fruit conveying belt 9, the upper and lower sides of the roll lever 5 of return section are provided with roll lever cleaning mechanism 12, and roll lever cleaning mechanism 12 is used to clean the surface of contacted roll lever 5.Use, load-bearing section of carrier roller conveyor belt structure moves from left to right, and roll lever 5 transports fruit from left to right, and the sorting mechanism connected with load-bearing section, second driving device 6 drives variable pitch screw shaft 7 rotation, and the roll block 10 of the both ends of roll lever 5 moves in the thread groove 8 on variable pitch screw shaft 7, and along with the gradually increasing pitch of thread groove 8, the distance between roll lever 5 gradually increases, and smaller fruit is preferentially dropped, and along with the increase of the distance between roll lever 5, larger fruit is subsequently dropped, and the pitch of thread groove 8 on variable pitch screw shaft 7 is steadily increased, so that the distance between roll lever 5 is slowly increased, to ensure the stability of fruit sorting, and fruit is dropped from different places from small to large, and is transported to different places by lower fruit conveying belt 9 for boxing, and the return section of carrier roller conveyor belt structure is below fruit conveying belt, and roll lever 5 is cleaned in return section, without affecting normal fruit sorting, since roll lever 5 is moved by chain 3 without rotation, roll lever 5 is cleaned more thoroughly on the upper and lower sides of roll lever 5 simultaneously.

[0024] Preferably, the upper and lower side roll cleaning mechanism 12 is staggered in front and back along the roll moving direction, the roll cleaning mechanism 12 comprises a first cleaning roller 13 and a second cleaning roller 14, the first cleaning roller 13 and the second cleaning roller 14 are both wrapped with a sponge 26, the central axis of the first cleaning roller 13 and the second cleaning roller 14 is parallel to the central axis of the roll 5, both ends of the first cleaning roller 13 and the second cleaning roller 14 are provided with rotatable supporting devices, the rotatable supporting devices are used for adaptively controlling the first cleaning roller 13 and the second cleaning roller 14 to rotate to different angles to clean the roll 5, the third driving device 18 is arranged on the rack 1, the third driving device 18 is used for driving the first cleaning roller 13 and the second cleaning roller 14 to rotate to clean the contacted roll 5. In use, in order to avoid the upper and lower side roll cleaning mechanism 12 affecting each other and causing dead angle of cleaning the roll 5, the upper and lower side roll cleaning mechanism 12 is staggered in front and back along the roll moving direction, the upper roll cleaning mechanism 12 cleans the upper half circular surface of the roll 5, and the lower roll cleaning mechanism 12 cleans the lower half circular surface of the roll 5, the first cleaning roller 13 and the second cleaning roller 14 are rotated by the third driving device 18, the sponge 26 wrapped on the surface of the first cleaning roller 13 and the second cleaning roller 14 cleans the roll 5, the roll 5 on the return section of the carrier roller conveyor belt structure moves from right to left, when the roll 5 moves from right to left, the rotatable supporting devices make the first cleaning roller 13 and the second cleaning roller 14 rotate with the movement of the roll 5, so that the place where the first cleaning roller 13 and the second cleaning roller 14 contact with the roll 5 changes, which greatly increases the cleaning area of the surface of the roll 5.

[0025] Preferably, the rotatable supporting device comprises a fixed rod 17, one end of the fixed rod 17 is fixedly connected with the frame 1, the other end of the fixed rod 17 is rotatably connected with the first supporting rod 15 and the second supporting rod 16, the second supporting rod 16 is connected with the fixed rod 17 through an elastic telescopic mechanism 19, the first supporting rod 15 is connected with the second supporting rod 16 through the same elastic telescopic mechanism 19, two ends of one elastic telescopic mechanism 19 are rotatably connected with the first supporting rod 15 and the second supporting rod 16 respectively, two ends of the other elastic telescopic mechanism 19 are rotatably connected with the second supporting rod 16 and the fixed rod 17 respectively, one end of the first supporting rod 15 away from the fixed rod 17 is rotatably connected with a first rotating shaft 20, the first cleaning roller 13 is sleeved on the first rotating shaft 20, one end of the second supporting rod 16 away from the fixed rod 17 is rotatably connected with a second rotating shaft 21, the second cleaning roller 14 is sleeved on the second rotating shaft 21. Taking the roller cleaning mechanism 12 below the roller 5 as an example, in use, the roller 5 moves to contact the first cleaning roller 13, when continuously moving, the roller 5 pushes the first cleaning roller 13 to left, the first supporting rod 15 rotates counterclockwise to left, the elastic telescopic mechanism 19 between the first supporting rod 15 and the second supporting rod 16 pulls the second supporting rod 16 to rotate counterclockwise upward, so that the second cleaning roller 14 rotates and always contacts the roller 5, in the process that the roller 5 moves to left, the first cleaning roller 13 contacts and cleans the lower left part surface of the roller 5, the second cleaning roller 14 contacts and cleans the lower right part surface of the roller 5, so as to clean the lower surface of the roller 5, when the roller 5 continuously moves to left, the elastic telescopic mechanism 19 connected with the fixed rod 17 pulls the second supporting rod 16 to return, so that the first cleaning roller 13 and the second cleaning roller 14 return to the original position, and the next roller 5 is continuously cleaned, the same roller cleaning mechanism 12 above the roller 5 cleans the upper surface of the roller 5, so as to ensure omnidirectional cleaning of the roller 5, in another scheme, in order to avoid that the elastic telescopic mechanism 19 connected with the fixed rod 17 pulls the second supporting rod 16, so that the second cleaning roller 14 on the second supporting rod 16 cannot well contact and clean the roller 5, the elastic telescopic mechanism 19 between the fixed rod 17 and the second supporting rod 16 can be adjusted to between the fixed rod 17 and the first supporting rod 15, when the roller 5 moves to left, the elastic telescopic mechanism 19 between the fixed rod 17 and the first supporting rod 15 is compressed, after the roller 5 moves away, the elastic telescopic mechanism 19 between the fixed rod 17 and the first supporting rod 15 pushes the first supporting rod 15 to rotate clockwise to right to return to the original position.

[0026] Preferably, the length of the first support rod 15 is equal to the sum of the radius of the roller 5 and the radius of the second cleaning roller 14, the length of the second support rod 16 is equal to the sum of the radius of the roller 5 and the radius of the first cleaning roller 13, the central axis of the first cleaning roller 13 is on the moving track of the roller 5, and the second cleaning roller 14 is on the side of the moving track of the roller 5. By accurately designing the length of the first support rod 15 and the second support rod 16, the radius of the first cleaning roller 13 and the second cleaning roller 14, it is ensured that the first cleaning roller 13 and the second cleaning roller 14 can contact and clean all surfaces of the roller 5 without missing dead angles.

[0027] Preferably, the third driving device 18 includes a motor 11 fixedly installed on the fixed rod 17, the first support rod 15 and the second support rod 16 are provided with driven shafts 22 at the rotation connection points of the fixed rod 17, the motor is connected with the driven shafts 22 through a belt transmission member, and the first shaft 20 and the second shaft 21 are both connected with the driven shafts 22 through the belt transmission member. The output end of the motor 11 is fixedly connected with a belt pulley, and the belt pulley on the driven shaft 22 is connected through a belt. The first shaft 20 and the second shaft 21 are both fixedly connected with belt pulleys, the belt pulley on the first shaft 20 and the belt pulley on the driven shaft 22 are connected through a belt, and the belt pulley on the second shaft 21 and the belt pulley on the driven shaft 22 are connected through a belt. During the rotation of the first support rod 15 and the second support rod 16, the distance from the first shaft 20 and the second shaft 21 to the driven shaft 22 does not change, so that the motor 11 can use the belt to transfer the power of the driven shaft 22 to the first shaft 20 and the second shaft 21, ensuring that the first cleaning roller 13 and the second cleaning roller 14 can continuously and stably rotate to clean the roller 5.

[0028] Preferably, the elastic telescopic mechanism 19 includes a sleeve 23 and a sliding rod 24, the sleeve 23 is slidably connected with the sliding rod 24, a spring 25 is arranged in the sleeve 23, and the spring 25 is fixedly connected with the sleeve 23 and the sliding rod 24 respectively. The spring 25 is sleeved in the sleeve 23, avoiding dust and sundries from interfering with the spring 25 and prolonging the service life.

[0029] Preferably, the outer surfaces of the first cleaning roller 13 and the second cleaning roller 14 are provided with a plurality of dovetail-shaped grooves 27, the grooves 27 are arranged along the length direction of the first cleaning roller 13 and the second cleaning roller 14, a plurality of arc-shaped sliding plates 28 are slidingly connected to the outer surfaces of the first cleaning roller 13 and the second cleaning roller 14, the inner sides of the arc-shaped sliding plates 28 are provided with dovetail-shaped protrusions 29, the sizes and lengths of the grooves 27 and the protrusions 29 are matched, and the sponges 26 are fixedly connected to the outer side surfaces of the arc-shaped sliding plates 28. The sponges 26 on the first cleaning roller 13 and the second cleaning roller 14 are fixed to the arc-shaped sliding plates 28, the arc-shaped sliding plates 28 are slidingly connected to the first cleaning roller 13 and the second cleaning roller 14, the sponges 26 are convenient to disassemble, clean and replace, the arc-shaped sliding plates 28 are dovetail-connected to the first cleaning roller 13 and the second cleaning roller 14, so that the arc-shaped sliding plates 28 are easy to disassemble and will not fall off, and the adjacent arc-shaped sliding plates 28 will not block each other.

[0030] Working principle: in use, fruits enter the bearing section of the roller conveyor structure from the left, and move from left to right, in the process, the spacing of the rolling bars 5 gradually increases, and the fruits fall from the gaps of the rolling bars 5 to realize fruit sorting, in the return section of the roller conveyor structure, the rolling bars 5 move from right to left, the first cleaning roller 13 is cleaned by being pushed left by the rolling bars 5, the second cleaning roller 14 is cleaned by being pushed up against the rolling bars 5, in the process, the contact point of the first cleaning roller 13 with the rolling bars 5 moves from the left side of the rolling bars 5 to the lower part, the contact point of the second cleaning roller 14 with the rolling bars 5 moves from the lower part of the rolling bars 5 to the right side, thereby realizing cleaning of the lower side surface of the rolling bars 5, the rolling bar cleaning mechanism 12 above the rolling bars 5 cleans the upper side surface of the rolling bars 5, and full-range cleaning of the rolling bars 5 is realized, after cleaning of each rolling bar 5, the first cleaning roller 13 and the second cleaning roller 14 return to the original positions under the action of the elastic extension mechanism 19, and continue to clean the subsequent rolling bars 5.

[0031] The above is only a specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. The protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A roller fruit conveying device, comprising a frame (1), a guide rail (4), a roller (5) and a chain (3) are arranged in the frame (1), the roller (5) and the chain (3) are connected into a carrier roller conveying belt structure, a part of the carrier roller conveying belt structure conveying fruits is a carrying section, a part of the carrier roller conveying belt structure returning to the original position is a returning section, a first driving device (2) is installed in the frame (1), the first driving device (2) is used for driving the carrier roller conveying belt structure to move along the guide rail (4), a sorting mechanism is connected to the carrying section, the sorting mechanism comprises a variable pitch screw shaft (7), both ends of the roller (5) are provided with a roller block (10), the roller block (10) is matched with a threaded groove (8) on the variable pitch screw shaft (7), the pitch of the threaded groove (8) on the variable pitch screw shaft (7) gradually increases, a second driving device (6) is installed in the frame (1), the second driving device (6) is used for driving the variable pitch screw shaft (7) to rotate, characterized in that: The bearing section and the return section are provided with a plurality of fruit conveying belts (9), the upper and lower sides of the rolling rod (5) of the return section are provided with rolling rod cleaning mechanisms (12) for cleaning the surface of the contacting rolling rod (5).

2. A roller fruit conveyor according to claim 1, characterised in that: The upper and lower rolling rod cleaning mechanisms (12) are staggered in the front and back directions along the moving direction of the rolling rod, the rolling rod cleaning mechanisms (12) comprise first cleaning rollers (13) and second cleaning rollers (14), the first cleaning rollers (13) and the second cleaning rollers (14) are wrapped with sponges (26), the central axes of the first cleaning rollers (13) and the second cleaning rollers (14) are parallel to the central axis of the rolling rod (5), the two ends of the first cleaning rollers (13) and the second cleaning rollers (14) are provided with rotatable support devices for adaptively controlling the first cleaning rollers (13) and the second cleaning rollers (14) to rotate to different angles to clean the rolling rod (5), and the rack (1) is provided with third driving devices (18) for driving the first cleaning rollers (13) and the second cleaning rollers (14) to rotate to clean the contacting rolling rod (5).

3. A roller fruit conveyor according to claim 2, characterised in that: The rotatable support devices comprise a fixed rod (17), one end of the fixed rod (17) is fixedly connected with the rack (1), the other end of the fixed rod (17) is rotatably connected with a first support rod (15) and a second support rod (16), the second support rod (16) is connected with the fixed rod (17) through an elastic telescopic mechanism (19), the first support rod (15) is connected with the second support rod (16) through the same elastic telescopic mechanism (19), the two ends of one elastic telescopic mechanism (19) are rotatably connected with the first support rod (15) and the second support rod (16), respectively, the two ends of the other elastic telescopic mechanism (19) are rotatably connected with the second support rod (16) and the fixed rod (17), respectively, one end of the first support rod (15) away from the fixed rod (17) is rotatably connected with a first rotating shaft (20), the first cleaning roller (13) is sleeved on the first rotating shaft (20), one end of the second support rod (16) away from the fixed rod (17) is rotatably connected with a second rotating shaft (21), and the second cleaning roller (14) is sleeved on the second rotating shaft (21).

4. A roller fruit conveyor according to claim 3, characterised in that: The length of the first support rod (15) is equal to the sum of the radius of the rolling rod (5) and the radius of the second cleaning roller (14), the length of the second support rod (16) is equal to the sum of the radius of the rolling rod (5) and the radius of the first cleaning roller (13), the central axis of the first cleaning roller (13) is on the moving track of the rolling rod (5), and the second cleaning roller (14) is on the side of the moving track of the rolling rod (5).

5. A roller fruit conveyor as claimed in claim 3, wherein: The third driving device (18) comprises a motor (11) fixedly installed on a fixed rod (17), a driven rotating shaft (22) is arranged at the rotating connection point of the first support rod (15) and the second support rod (16) and the fixed rod (17), the motor (11) is connected with the driven rotating shaft (22) through a belt transmission member, and the first rotating shaft (20) and the second rotating shaft (21) are both connected with the driven rotating shaft (22) through a belt transmission member.

6. A roller fruit conveyor as claimed in claim 3, wherein: The elastic telescopic mechanism (19) comprises a sleeve (23) and a sliding rod (24), the sleeve (23) is in sliding connection with the sliding rod (24), a spring (25) is arranged in the sleeve (23), and the spring (25) is fixedly connected with the sleeve (23) and the sliding rod (24) respectively.

7. A roller fruit conveyor as claimed in claim 2, wherein: The outer surfaces of the first cleaning roller (13) and the second cleaning roller (14) are both provided with the same plurality of dovetail-shaped grooves (27), the grooves (27) are arranged along the length direction of the first cleaning roller (13) and the second cleaning roller (14), the outer surfaces of the first cleaning roller (13) and the second cleaning roller (14) are in sliding connection with a plurality of arc-shaped sliding plates (28), the inner side of the arc-shaped sliding plate (28) is provided with a dovetail-shaped protrusion (29), the size and length of the groove (27) and the protrusion (29) are matched, and the sponge (26) is fixedly connected to the outer side surface of the arc-shaped sliding plate (28).

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