阅读说明：本技术 基于建材机械具备水平调节机构的建材运输装置及其操作方法 (Building material conveying device with horizontal adjusting mechanism based on building material machinery and operation method thereof ) 是由 平汐 于 2021-06-29 设计创作，主要内容包括：本发明提供基于建材机械具备水平调节机构的建材运输装置及其操作方法,涉及建材运输技术领域,解决了现有装置在输送建材时建材上的残渣以及泥土容易掉落在地面上,而不能够通过结构上的改进在输送过程中自动实现残渣以及泥土的收集以及收集后的筛选,用以实现残渣的再次利用的问题。基于建材机械具备水平调节机构的建材运输装置及其操作方法,包括架体；所述架体为铁质框架结构。因凸起A共设有六个,且六个凸起A呈环形阵列状焊接在连接座上；凸起A为半圆柱形结构,且当清理辊转动时凸起A与传送带内端面弹性接触,从而可实现传送带的轻微变形,进而可将传送带外端面粘附的泥土以及残渣清理。(The invention provides a building material conveying device with a horizontal adjusting mechanism based on a building material machine and an operation method thereof, relates to the technical field of building material conveying, and solves the problems that residues and soil on building materials are easy to fall on the ground when the existing device conveys the building materials, and the collection of the residues and the soil and the screening after the collection cannot be automatically realized in the conveying process through structural improvement so as to realize the reutilization of the residues. A building material transportation device with a horizontal adjusting mechanism based on a building material machine and an operation method thereof comprise a frame body; the support body is iron frame construction. The six bulges A are arranged and welded on the connecting seat in an annular array; the protrusions A are of a semi-cylindrical structure and are in elastic contact with the inner end face of the conveyor belt when the cleaning roller rotates, so that slight deformation of the conveyor belt can be achieved, and soil and residues adhered to the outer end face of the conveyor belt can be cleaned.)

1. Building material conveying device with horizontal adjusting mechanism based on building material machinery and operation method thereof are characterized in that: the transportation device comprises a frame body;

the frame body is of an iron frame structure;

the cleaning structure is arranged on the frame body;

and the support structure is arranged on the frame body.

2. A building material transport apparatus having a level adjustment mechanism based on a building material machine as set forth in claim 1, wherein: the support body includes:

the six rolling shafts are all rotatably connected to the frame body; the six rollers are sleeved with the conveyor belt, and the leftmost roller is connected with the driving motor.

3. A building material transport apparatus having a level adjustment mechanism based on a building material machine as set forth in claim 1, wherein: the cleaning structure includes:

the two sliding rods are arranged and are connected to the frame body in a sliding manner;

the cleaning brush is arranged at the head ends of the two sliding rods;

the elastic pieces are provided with two elastic pieces, the two elastic pieces are respectively sleeved on the two sliding rods, and the cleaning brush is in elastic contact with the conveyor belt under the pushing of the elastic pieces.

4. A building material transport apparatus having a level adjustment mechanism based on a building material machine as set forth in claim 1, wherein: the support body still includes:

the connecting seat is welded on the frame body, the connecting seat is rotatably connected with a cleaning roller, and the cleaning roller is connected with the rolling shaft through a belt wheel and a belt;

the number of the bulges A is six, and the six bulges A are welded on the connecting seat in an annular array shape; the protrusions A are of a semi-cylindrical structure and are in elastic contact with the inner end face of the conveyor belt when the cleaning roller rotates.

5. A building material transport apparatus having a level adjustment mechanism based on a building material machine as set forth in claim 1, wherein: the support structure includes:

the rotating shaft is rotatably connected to the frame body, two supporting arms are symmetrically welded on the rotating shaft, and a gear is welded on the rotating shaft;

the adjusting rod is rotatably connected to the frame body and is provided with spiral teeth; the spiral teeth arranged on the adjusting rod are meshed with the gear, and the adjusting rod and the gear form a worm and gear structure together;

the upper position of the supporting structure is provided with a collecting box.

6. A building material transport device with a level adjustment mechanism based on a building material machine as in claim 5, wherein: two the support arm is the shaft-like structure of rectangle, and two support arm head ends are all through polishing the processing to the support arm head end after polishing the processing is the arc structure.

7. A building material transport device with a level adjustment mechanism based on a building material machine as in claim 5, wherein: the collecting box is of a rectangular box-shaped structure, and a collecting hopper is welded on the collecting box; collect the below position that box and collection fill all are located the conveyer belt, and collect the fill and be the slope form setting to inclination is 30 degrees.

8. A building material transport apparatus having a level adjustment mechanism based on a building material machine as in claim 7, wherein: the collecting box includes:

the elastic telescopic rods are provided with four elastic telescopic rods, and the head ends of the four elastic telescopic rods are welded on the bottom end surface of the inner wall of the collecting box; the tail ends of the four elastic telescopic rods are welded with the frame body of the screen; four elasticity telescopic links have constituteed the reset structure of screen cloth jointly, and four elasticity telescopic links all are the shape of invering and set up.

9. A building material transport apparatus having a level adjustment mechanism based on a building material machine as in claim 8, wherein: the collecting box further comprises:

the auxiliary seat is welded on the frame of the screen, and two bulges B are welded on the auxiliary seat; the two bulges B are of semi-cylindrical structures and are in contact with the tail end of the sliding rod.

10. A method of using a building material transport device with a leveling mechanism based on a building material machine of claim 1, comprising the steps of:

01. firstly, placing bricks or gravel for construction on a conveyor belt;

02. the pneumatic motor moves the conveyor belt;

03. when the conveyor belt rotates to the lower position, residues adhered on the conveyor belt can be swept down by the cleaning brush;

04. when the cleaning roller rotates, the protrusions A are in elastic contact with the inner end face of the conveyor belt, so that slight deformation of the conveyor belt can be realized, and soil and residues adhered to the outer end face of the conveyor belt can be cleaned;

05. the silt and residue cleaned by the cleaning brush and the cleaning roller naturally fall into the collecting box;

06. two protruding B all with the tail end contact of slide bar, clean brush and slide bar can produce the displacement under the extrusion of conveyer belt when protruding A extrusion conveyer belt warp, and then realized the reciprocal sieve of the frame of screen cloth through the displacement of slide bar and move, and then realized the screening of the residue that drops.

Technical Field

The invention belongs to the technical field of building material transportation, and particularly relates to a building material transportation device with a horizontal adjusting mechanism based on a building material machine and an operation method thereof.

Background

The building materials (building materials for short) are generic names of various materials used in civil engineering and can be divided into structural materials, decorative materials and some special materials. The structural materials comprise wood, bamboo, stone, cement, concrete, metal, tiles, ceramics, glass, engineering plastics, composite materials and the like, and a conveyor belt is required to be used when the building materials are conveyed.

As in application No.: CN201810324145.5, the invention discloses a transportation device for building material production, which comprises a box body shell, a supporting plate, a clamping plate and a fixing plate, wherein the fixing plate and the clamping plate are separated from each other in the device to form independent small chambers, and materials are respectively loaded into the small chambers, so that the collision among the materials can be effectively reduced, the waste of resources caused by the mutual collision of the materials is prevented, and the materials are clamped and fixed by the clamping plate, and the protection of the materials is further improved; the material is clamped tightly through the clamping frame, the purpose of fixing is achieved, the clamping frame and the material contact surface are provided with the air bag, the material can be fully provided with a buffering effect, the set rubber layer is used for protecting the air bag, and after the material is clamped tightly, the material is prevented from sliding along with the movement of the device through the friction force of the material, the clamping frame is pushed through the spring, the air bag is attached to the material, and the material can be protected in a maximized mode through two damping processes.

Building material transportation devices similar to the above applications still have the following disadvantages:

one is that the existing device only realizes the conveying of building materials, but cannot automatically realize the cleaning of soil on a conveyor belt and the cleaning of extrusion deformation through structural improvement during the conveying; furthermore, the residue and soil on the building materials are easy to fall on the ground when the existing device conveys the building materials, and the collection of the residue and the soil and the screening after the collection cannot be automatically realized in the conveying process through the structural improvement so as to realize the reutilization of the residue.

In view of the above, the present invention provides a building material transportation device and an operation method thereof based on a building material machine having a horizontal adjustment mechanism, which is improved in view of the conventional structure and disadvantages, so as to achieve the purpose of higher practical value.

Disclosure of Invention

In order to solve the technical problems, the invention provides a building material conveying device based on a building material machine and an operation method thereof, aiming at solving the problems that the existing device only realizes the conveying of building materials, but cannot automatically realize the sweeping and cleaning of soil on a conveyor belt and the extrusion deformation cleaning during the conveying through structural improvement; furthermore, the residue and the soil on the building materials are easy to fall on the ground when the existing device conveys the building materials, and the collection of the residue and the soil and the screening after the collection cannot be automatically realized in the conveying process through the structural improvement so as to realize the problem of reutilization of the residue.

The invention is based on the purpose and the efficacy of a building material transportation device with a horizontal adjusting mechanism of a building material machine and an operation method thereof, and is achieved by the following specific technical means:

a building material transportation device with a horizontal adjusting mechanism based on a building material machine and an operation method thereof comprise a frame body;

the frame body is of an iron frame structure;

the cleaning structure is arranged on the frame body;

and the support structure is arranged on the frame body.

Further, the support body includes:

the six rolling shafts are all rotatably connected to the frame body; the six rollers are sleeved with the conveyor belt, and the leftmost roller is connected with the driving motor.

Further, the cleaning structure includes:

the two sliding rods are arranged and are connected to the frame body in a sliding manner;

the cleaning brush is arranged at the head ends of the two sliding rods;

the elastic pieces are provided with two elastic pieces, the two elastic pieces are respectively sleeved on the two sliding rods, and the cleaning brush is in elastic contact with the conveyor belt under the pushing of the elastic pieces.

Further, the support body still includes:

the connecting seat is welded on the frame body, the connecting seat is rotatably connected with a cleaning roller, and the cleaning roller is connected with the rolling shaft through a belt wheel and a belt;

the number of the bulges A is six, and the six bulges A are welded on the connecting seat in an annular array shape; the protrusions A are of a semi-cylindrical structure and are in elastic contact with the inner end face of the conveyor belt when the cleaning roller rotates.

Further, the support structure includes:

the rotating shaft is rotatably connected to the frame body, two supporting arms are symmetrically welded on the rotating shaft, and a gear is welded on the rotating shaft;

the adjusting rod is rotatably connected to the frame body and is provided with spiral teeth; the spiral teeth arranged on the adjusting rod are meshed with the gear, and the adjusting rod and the gear form a worm and gear structure together;

the upper position of the supporting structure is provided with a collecting box.

Furthermore, two the support arm is the shaft-like structure of rectangle, and two support arm head ends are all through polishing the processing to the support arm head end after polishing the processing is the arc structure.

Furthermore, the collecting box is of a rectangular box-shaped structure, and a collecting hopper is welded on the collecting box; collect the below position that box and collection fill all are located the conveyer belt, and collect the fill and be the slope form setting to inclination is 30 degrees.

Furthermore, the bottom end face of the collecting box is of an inclined structure, and the inclination angle of the bottom end face of the collecting box is 30 degrees.

Further, the collecting box includes:

the elastic telescopic rods are provided with four elastic telescopic rods, and the head ends of the four elastic telescopic rods are welded on the bottom end surface of the inner wall of the collecting box; the tail ends of the four elastic telescopic rods are welded with the frame body of the screen; four elasticity telescopic links have constituteed the reset structure of screen cloth jointly, and four elasticity telescopic links all are the shape of invering and set up.

Further, the collecting box further comprises:

the auxiliary seat is welded on the frame of the screen, and two bulges B are welded on the auxiliary seat; the two bulges B are of semi-cylindrical structures and are in contact with the tail end of the sliding rod.

The use method of the building material transportation device with the horizontal adjusting mechanism based on the building material machinery comprises the following steps:

01. firstly, placing bricks or gravel for construction on a conveyor belt;

02. the pneumatic motor moves the conveyor belt;

03. when the conveyor belt rotates to the lower position, residues adhered on the conveyor belt can be swept down by the cleaning brush;

04. when the cleaning roller rotates, the protrusions A are in elastic contact with the inner end face of the conveyor belt, so that slight deformation of the conveyor belt can be realized, and soil and residues adhered to the outer end face of the conveyor belt can be cleaned;

05. the silt and residue cleaned by the cleaning brush and the cleaning roller naturally fall into the collecting box;

06. two protruding B all with the tail end contact of slide bar, clean brush and slide bar can produce the displacement under the extrusion of conveyer belt when protruding A extrusion conveyer belt warp, and then realized the reciprocal sieve of the frame of screen cloth through the displacement of slide bar and move, and then realized the screening of the residue that drops.

Compared with the prior art, the invention has the following beneficial effects:

through the setting of clean structure, be equipped with two because of the elastic component altogether, and two elastic components cup joint respectively on two slide bars to cleaning brush and conveyer belt elastic contact under the elasticity promotion of elastic component, thereby can sweep the residue on the conveyer belt through cleaning brush.

Through the arrangement of the cleaning rollers and the bulges A, the number of the bulges A is six, and the six bulges A are welded on the connecting seat in an annular array shape; the protrusions A are of a semi-cylindrical structure and are in elastic contact with the inner end face of the conveyor belt when the cleaning roller rotates, so that slight deformation of the conveyor belt can be achieved, and soil and residues adhered to the outer end face of the conveyor belt can be cleaned.

Through the setting of collecting the box, all be located the below position of conveyer belt because of collecting the box and collecting the fill, and collect the fill and be the slope form setting to inclination is 30 degrees, thereby the accessible is collected the box and is collected the residue earth that the fill can drop on with the conveyer belt and collect.

Through the matching arrangement of the cleaning structure and the collecting box, the auxiliary seat is welded on the frame of the screen, and two bulges B are welded on the auxiliary seat; two protruding B are semi-cylindrical structure, and two protruding B all with the tail end contact of slide bar to cleaning brush and slide bar can produce the displacement under the extrusion of conveyer belt when protruding A extrusion conveyer belt warp, and then realized the reciprocal sieve of the frame of screen cloth through the displacement of slide bar and moved, and then realized the screening of the residue that drops.

Through the arrangement of the supporting structure, firstly, the adjusting rod is connected to the frame body in a rotating way, and the adjusting rod is provided with spiral teeth; the spiral teeth arranged on the adjusting rod are meshed with the gear, and the adjusting rod and the gear form a worm and gear structure together, so that the angle adjustment of the supporting arm can be realized, and the inclination angle adjustment of the frame body is further realized; and secondly, the supporting arms are of rectangular rod-shaped structures, the head ends of the two supporting arms are ground, and the head ends of the supporting arms after grinding are of arc-shaped structures, so that the friction between the supporting arms and the ground can be reduced.

Drawings

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

Fig. 2 is an enlarged schematic view of fig. 1 at a.

Fig. 3 is a rear view structural diagram of the present invention.

Fig. 4 is an enlarged view of the structure of fig. 3B according to the present invention.

Fig. 5 is an enlarged view of the structure of fig. 3 according to the present invention.

FIG. 6 is a schematic axial view of the cartridge of the present invention in section.

Fig. 7 is a rear view of the invention of fig. 6.

Fig. 8 is an enlarged view of fig. 7D according to the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a frame body; 101. a roller; 102. a conveyor belt; 103. a connecting seat; 104. cleaning the roller; 105. a protrusion A; 2. cleaning the structure; 201. a slide bar; 202. a cleaning brush; 203. an elastic member; 3. a support structure; 301. a rotating shaft; 302. a support arm; 303. a gear; 304. an adjusting lever; 4. a collection box; 401. a collecting hopper; 402. an elastic telescopic rod; 403. screening a screen; 404. an auxiliary seat; 405. and a protrusion B.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 8:

the invention provides a building material conveying device with a horizontal adjusting mechanism based on a building material machine and an operation method thereof, wherein the building material conveying device comprises a frame body 1;

the frame body 1 is of an iron frame structure;

the cleaning structure 2 is arranged on the frame body 1;

and the support structure 3 is arranged on the frame body 1.

Referring to fig. 1, the magazine 1 includes:

the rack comprises six rolling shafts 101, wherein the six rolling shafts 101 are all rotatably connected to the rack body 1; the six rollers 101 are sleeved with the conveyor belt 102, and the leftmost roller 101 is connected with the driving motor, so that the movement of the conveyor belt 102 and the conveying of the building materials can be realized when the driving motor rotates.

Referring to fig. 3 and 5, the cleaning structure 2 includes:

the two sliding rods 201 are arranged, and the two sliding rods 201 are both connected to the frame body 1 in a sliding manner;

a cleaning brush 202, wherein the cleaning brush 202 is arranged at the head ends of the two sliding rods 201;

the number of the elastic pieces 203 is two, the two elastic pieces 203 are respectively sleeved on the two sliding rods 201, and the cleaning brush 202 is elastically contacted with the conveyor belt 102 under the pushing of the elastic pieces 203, so that residues on the conveyor belt 102 can be swept away by the cleaning brush 202.

Referring to fig. 3 and 4, the magazine body 1 further includes:

the connecting seat 103 is welded on the frame body 1, the connecting seat 103 is rotatably connected with a cleaning roller 104, and the cleaning roller 104 is connected with the rolling shaft 101 through a belt wheel and a belt;

six bulges A105 are arranged on the connecting seat 103, and the six bulges A105 are welded on the connecting seat in an annular array shape; the protrusions a105 have a semi-cylindrical structure, and the protrusions a105 are elastically contacted with the inner end surface of the conveyor belt 102 when the cleaning rollers 104 rotate, so that a slight deformation of the conveyor belt 102 can be achieved, and thus, soil and debris adhered to the outer end surface of the conveyor belt 102 can be cleaned.

Referring to fig. 1 and 2, the support structure 3 includes:

the rotating shaft 301 is rotatably connected to the frame body 1, two supporting arms 302 are symmetrically welded on the rotating shaft 301, and a gear 303 is welded on the rotating shaft 301;

the adjusting rod 304 is rotatably connected to the frame body 1, and the adjusting rod 304 is provided with spiral teeth; the spiral teeth arranged on the adjusting rod 304 are meshed with the gear 303, and the adjusting rod 304 and the gear 303 jointly form a worm and gear structure, so that the angle adjustment of the supporting arm 302 can be realized, and the inclination angle adjustment of the frame body 1 can be further realized;

a collecting box 4 is mounted in a position above the supporting structure 3.

Referring to fig. 3, the two support arms 302 are both rectangular rod-shaped structures, the head ends of the two support arms 302 are both polished, and the head ends of the polished support arms 302 are arc-shaped structures, so that the friction between the ground and the ground can be reduced.

Referring to the figures, the collecting box 4 is a rectangular box-shaped structure, and a collecting bucket 401 is welded on the collecting box 4; collect box 4 and collect all be located the below position of conveyer belt 102 with collection fill 401, and collect fill 401 and be the slope form setting to inclination is 30 degrees, thereby the accessible is collected box 4 and is collected the residue earth that fill 401 can drop on with conveyer belt 102.

Referring to fig. 7, the bottom surface of the collecting box 4 is an inclined structure, and the inclination angle of the bottom surface of the collecting box 4 is 30 degrees, so that the automatic collection of the screened residue can be realized.

Referring to fig. 7, the collecting box 4 includes:

the number of the elastic telescopic rods 402 is four, and the head ends of the four elastic telescopic rods 402 are welded on the bottom end surface of the inner wall of the collecting box 4; the tail ends of the four elastic telescopic rods 402 are all connected with the frame body of the screen 403 in a welding manner; the four elastic telescopic rods 402 form a reset structure of the screen 403 together, and the four elastic telescopic rods 402 are arranged in an inverted manner, so that the probability of powder entering the elastic telescopic rods 402 can be reduced.

Referring to fig. 7 and 8, the collecting box 4 further includes:

the auxiliary seat 404 is welded on the frame of the screen 403, and two bulges B405 are welded on the auxiliary seat 404; the two protrusions B405 are of a semi-cylindrical structure, and the two protrusions B405 are in contact with the tail end of the sliding rod 201, so that when the protrusion a105 extrudes the conveyor belt 102 to deform, the cleaning brush 202 and the sliding rod 201 are displaced under the extrusion of the conveyor belt 102, and then the reciprocating screening of the frame of the screen mesh 403 is realized through the displacement of the sliding rod 201, and then the screening of the dropped residues is realized.

In another embodiment, the elastic restoring force of the screen 403 can be realized by a slide bar and a spring, and the slide bar and the spring replace the elastic telescopic bar 402, so that the cost is lower.

The use method of the building material transportation device with the horizontal adjusting mechanism based on the building material machinery comprises the following steps:

01. first, bricks or stones for construction are placed on the conveyor belt 102;

02. the pneumatic motor moves the conveyor belt 102;

03. when the conveyor belt 102 rotates to the lower position, the residues adhered to the conveyor belt 102 can be swept down by the cleaning brush 202;

04. when the cleaning roller 104 rotates, the protrusions A105 are in elastic contact with the inner end face of the conveyor belt 102, so that slight deformation of the conveyor belt 102 can be realized, and soil and residues adhered to the outer end face of the conveyor belt 102 can be cleaned;

05. the silt and residue cleaned by the cleaning brush 202 and the cleaning roller 104 naturally fall into the collection box 4;

06. the two protrusions B405 are in contact with the tail end of the sliding rod 201, when the protrusion a105 extrudes the conveyor belt 102 to deform, the cleaning brush 202 and the sliding rod 201 can displace under the extrusion of the conveyor belt 102, and then the reciprocating sieving of the frame of the screen 403 is realized through the displacement of the sliding rod 201, and then the screening of the dropped residues is realized.

The specific use mode and function of the embodiment are as follows:

when the angle of the frame body 1 needs to be adjusted, firstly, the adjusting rod 304 is rotatably connected to the frame body 1, and the adjusting rod 304 is provided with spiral teeth; the spiral teeth arranged on the adjusting rod 304 are meshed with the gear 303, and the adjusting rod 304 and the gear 303 jointly form a worm and gear structure, so that the angle adjustment of the supporting arm 302 can be realized, and the inclination angle adjustment of the frame body 1 can be further realized; secondly, the supporting arms 302 are of rectangular rod-shaped structures, the head ends of the two supporting arms 302 are ground, and the ground head ends of the supporting arms 302 are of arc-shaped structures, so that the friction force between the supporting arms and the ground can be reduced;

when cleaning the residues on the conveyor belt 102, firstly, two elastic members 203 are arranged, the two elastic members 203 are respectively sleeved on the two sliding rods 201, and the cleaning brush 202 is pushed by the elasticity of the elastic members 203 to be in elastic contact with the conveyor belt 102, so that the residues on the conveyor belt 102 can be cleaned by the cleaning brush 202; secondly, six protrusions A105 are arranged, and the six protrusions A105 are welded on the connecting seat 103 in an annular array; the protrusions A105 are of a semi-cylindrical structure, and when the cleaning roller 104 rotates, the protrusions A105 are in elastic contact with the inner end face of the conveyor belt 102, so that slight deformation of the conveyor belt 102 can be realized, and soil and residues adhered to the outer end face of the conveyor belt 102 can be cleaned; thirdly, because the collecting box 4 and the collecting hopper 401 are both positioned below the conveyor belt 102, and the collecting hopper 401 is arranged in an inclined manner, and the inclined angle is 30 degrees, the residual soil falling on the conveyor belt 102 can be collected through the collecting box 4 and the collecting hopper 401; fourthly, the auxiliary seat 404 is welded on the frame of the screen 403, and two bulges B405 are welded on the auxiliary seat 404; the two protrusions B405 are of a semi-cylindrical structure, and the two protrusions B405 are in contact with the tail end of the sliding rod 201, so that when the protrusion a105 extrudes the conveyor belt 102 to deform, the cleaning brush 202 and the sliding rod 201 are displaced under the extrusion of the conveyor belt 102, and then the reciprocating screening of the frame of the screen mesh 403 is realized through the displacement of the sliding rod 201, and then the screening of the dropped residues is realized.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.