CN215905361U

CN215905361U - Sand and stone material conveying mechanism for preparing concrete

Info

Publication number: CN215905361U
Application number: CN202121468850.6U
Authority: CN
Inventors: 周弘韬; 姚晓光; 梁化洋
Original assignee: Tongxiang Zhongda Building Material Co ltd
Current assignee: Tongxiang Zhongda Building Material Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-02-25
Anticipated expiration: 2031-06-30

Abstract

The utility model discloses a sand and stone material conveying mechanism for preparing concrete, and belongs to the field of building material processing mechanical equipment. The utility model discloses a first hopper and second hopper follow the incline direction from last to setting up filter screen stock guide downside slope down and being provided with the washing guide plate down in proper order, pass material support frame top from last to having passed material support and passing down the material support down in proper order the level set up, pass down the material belt and set up in the material belt below of last passing, go up to pass the material belt and pass down the mutual parallel arrangement of material belt, guide belt level sets up in passing down material belt tip downside, guide belt and passing material belt mutually perpendicular setting down, reciprocal tractive chain upside both ends respectively with pass down material support both ends fixed connection. The sand and stone conveying device is reasonable in structural design, can be used for conveniently and smoothly cleaning sand and stone in the conveying process, can stably and efficiently convey the sand and stone to a position required by production according to the requirement, improves the automation degree of sand and stone conveying, and meets the requirement of production and use.

Description

Sand and stone material conveying mechanism for preparing concrete

Technical Field

The utility model belongs to the field of building material processing machinery and equipment, and particularly relates to an aggregate conveying mechanism for preparing concrete.

Background

The concrete is the most main civil engineering material, has the characteristics of rich raw materials, low price and simple production process, so that the dosage of the concrete is increased, and meanwhile, the concrete also has the characteristics of high compressive strength, good durability, wide strength grade range and the like. In the production and configuration process of concrete, sandstone is indispensable aggregate for preparing concrete, reasonable sandstone proportion and high-quality sandstone are the premise for preparing high-quality concrete, the sandstone for configuring the concrete is required to be clean and free of impurities, so that the quality of the concrete can be ensured, the existing sandstone often contains clay, silt, powder sand and the like, the impurities are adhered to the surface of the sandstone, the adhesion of cement and the sandstone is prevented, the strength of the concrete is reduced, the water consumption of the concrete is increased, the shrinkage of the concrete is increased, the frost resistance and impermeability are reduced, organic impurities, sulfides and sulfates which are adhered to the surface of the sandstone have a corrosive effect on the cement, therefore, the impurities on the surface of the sandstone must be cleaned before the sandstone is used for preparing the concrete, and the existing sandstone is difficult to be cleaned and processed synchronously in the conveying and guiding process, influence the efficiency of grit conveying guide, current grit is utilizing the conveyer belt to convey the in-process of guide, and the conveying distance and the conveying position of grit are fixed usually, are difficult to according to the conveying distance and the conveying position of the high-efficient convenient regulation grit of concrete production and processing's needs, can not satisfy the needs of plant use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the defects in the prior art, and provides the sand and stone material conveying mechanism for preparing concrete, which has reasonable structural design, can be conveniently and smoothly cleaned in the sand and stone material conveying process, can stably and efficiently convey the sand and stone materials to positions required by production according to requirements, improves the sand and stone material conveying automation degree, and meets the production and use requirements.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: the utility model provides a grit material transport mechanism for preparing concrete which characterized in that: the sand and stone material conveying mechanism for preparing concrete comprises a first hopper, a second hopper, an upper material conveying belt, a lower material conveying belt, a material guiding belt and a material conveying supporting frame, wherein the first hopper and the second hopper are sequentially and fixedly arranged along the inclined direction from top to bottom, a filter screen material guiding plate is obliquely arranged at the lower side of the first hopper, the lower end of the filter screen material guiding plate is communicated with the upper part of the second hopper, the filter screen material guiding plate is of a C-shaped structure with an upward opening, a cleaning guide plate is obliquely and downwards arranged at the lower side of the filter screen material guiding plate, the upper end of the cleaning guide plate is fixedly connected with the outer side wall of the second hopper, a cleaning water guide pipe is obliquely arranged at the upper side of the filter screen material guiding plate, the cleaning water guide pipe is parallel to the filter screen material guiding plate and is of a U-shaped structure, a plurality of material cleaning water spray nozzles are uniformly arranged along the side of the filter screen material guiding plate below the cleaning water guide pipe, and a cleaning water inlet pipe is communicated with the middle part of one side of the cleaning water guide pipe, the material conveying support frame is horizontally arranged below the second hopper, an upper material conveying support frame and a lower material conveying support frame are sequentially and horizontally arranged above the material conveying support frame from top to bottom, a plurality of upper support vertical rods are vertically and uniformly arranged between the lower side of the upper material conveying support frame and the material conveying support frame, two sides of the upper material conveying support frame are respectively and horizontally and rotatably connected with upper material conveying rotating rollers, an upper material conveying belt is horizontally arranged on the upper side of the upper material conveying support frame, two sides of the upper material conveying belt are respectively wound on the upper material conveying rotating rollers connected with two sides of the upper material conveying support frame, the upper material conveying belt is arranged on the lower side of the second hopper, an upper material conveying motor is horizontally and fixedly arranged on the outer side of the upper material conveying support frame, the upper material conveying motor is in transmission connection with the adjacent upper material conveying rotating rollers by adopting an upper connecting belt, a plurality of translation rollers are uniformly arranged on the lower side of the lower material conveying support frame, and translation limiting stop strips are respectively and horizontally and fixedly arranged on the material conveying support frames on two sides of the translation rollers, two sides above the lower material conveying bracket are respectively and horizontally connected with a lower material conveying rotating roller in a rotating way, a lower material conveying belt is horizontally arranged on the upper side of the lower material conveying bracket, two sides of the lower material conveying belt are respectively and spirally connected with the lower material conveying rotating rollers on two sides of the lower material conveying bracket, a lower material conveying motor is horizontally and fixedly arranged on the outer side of the lower material conveying bracket, the lower material conveying motor is in transmission connection with the adjacent lower material conveying rotating rollers by adopting a lower connecting belt, the lower material conveying belt is arranged below the upper material conveying belt, the upper material conveying belt and the lower material conveying belt are arranged in parallel, a material guiding bracket is horizontally and fixedly arranged on the lower material conveying bracket below the end part of the lower material conveying belt, two sides of the material guiding bracket are respectively and horizontally connected with a material guiding rotating roller in a rotating way, the material guiding belt is horizontally arranged on the upper side of the material guiding bracket, two sides of the material guiding belt are respectively and spirally connected with the material guiding rotating rollers on two sides of the material guiding bracket, the material guiding belt is horizontally arranged on the lower side of the end part of the lower material conveying belt, the material guide belt and the lower material conveying belt are perpendicular to each other and arranged, a material guide motor is horizontally and fixedly arranged on the outer side of the material guide support, the material guide motor drives a material guide rotary roller to rotate, two side end portions of the upper side of the material conveying support are respectively vertically and rotatably connected with a reciprocating rotary chain wheel, two side end portions of the lower side of the material conveying support are respectively and vertically and rotatably connected with a transition chain wheel, a reciprocating traction chain is horizontally and fixedly arranged on the upper side of the material conveying support, the reciprocating traction chain is sequentially connected with the reciprocating rotary chain wheel at two side end portions of the upper side of the material conveying support and the transition chain wheel at two side end portions of the lower side of the material conveying support, two ends of the upper side of the reciprocating traction chain are respectively and fixedly connected with two ends of the lower material conveying support, a reciprocating traction motor is horizontally and fixedly arranged on one side of the material conveying support, and the reciprocating traction motor is connected with the adjacent reciprocating rotary chain wheel in a reciprocating traction belt transmission mode.

Further, it is connected with many upper carrying belt and changes the roller to pass material support upside along the horizontal direction horizontal rotation in proper order, and many upper carrying belt change the roller set up in the inboard top of last material belt, it is connected with many lower carrying belt and changes the roller to pass material support upside along the horizontal direction horizontal rotation in proper order down, and many lower carrying belt change the roller set up in passing material belt inboard top down.

Furthermore, a reciprocating traction motor horizontally and fixedly arranged on the material conveying support frame is a servo motor.

Compared with the prior art, the utility model has the following advantages and effects: the utility model has reasonable structural design, the first hopper and the second hopper are sequentially and fixedly arranged from top to bottom along the inclined direction, the lower side of the first hopper is obliquely provided with a filter screen guide plate, the lower end of the filter screen guide plate is communicated with the upper part of the second hopper, the lower side of the filter screen guide plate is obliquely provided with a cleaning guide plate downwards, the upper side of the filter screen guide plate is obliquely provided with a cleaning water guide pipe, the lower part of the cleaning water guide pipe is uniformly provided with a plurality of cleaning water spray heads along the side of the filter screen guide plate, the middle part of one side of the cleaning water guide pipe is communicated with a cleaning water inlet pipe, the sand stones in the first hopper are efficiently and uniformly washed by utilizing the plurality of cleaning water spray heads on the lower side of the cleaning water guide pipe in the process of sliding down to the cleaning guide plate along the filter screen guide plate in the washing process, the cleaned sand stones are continuously conveyed backwards after sliding down to the second hopper, the convenient and smooth cleaning and processing in the sand material conveying process are realized, the two sides of an upper conveying belt are respectively wound and connected with the upper conveying rotating rollers on the two sides of an upper conveying support, the upper conveying belt is arranged on the lower side of a second hopper, the upper conveying motor is in transmission connection with the adjacent upper conveying rotating rollers through an upper connecting belt, the two sides of a lower conveying belt are respectively wound and connected with the lower conveying rotating rollers on the two sides of a lower conveying support, the lower conveying motor is in transmission connection with the adjacent lower conveying rotating rollers through a lower connecting belt, the lower conveying belt is arranged below the upper conveying belt, a guide belt is horizontally arranged on the lower side of the end part of the lower conveying belt, the guide motor drives the guide rotating rollers to rotate, the upper conveying belt is driven to rotate and convey by the upper conveying motor, the lower conveying belt is driven to rotate and convey by the lower conveying motor, the guide belt is driven to rotate and convey by the guide motor, so that the sand falling in the second hopper can sequentially pass along the upper conveying belt, the lower conveying belt, the sand material can be conveyed by the lower conveying belt, the lower conveying belt can be conveyed by the lower conveying belt, and conveyed by the lower conveying belt can be conveyed in the second hopper, The lower material conveying belt and the material guiding belt are used for conveying to realize stable and smooth continuous material guiding of the gravels, reciprocating traction chains are sequentially connected with reciprocating rotating chain wheels at the end parts at the two sides above the material conveying support frame and transition chain wheels at the end parts at the two sides below the material conveying support frame, the upper side two ends of each reciprocating traction chain are respectively and fixedly connected with the two ends of the lower material conveying support frame, a reciprocating traction motor is in transmission connection with the adjacent reciprocating rotating chain wheels by adopting the reciprocating traction belts, the reciprocating traction motor drives the lower material conveying support frame to reciprocate and translate along the horizontal direction by utilizing the reciprocating traction chain strips, a plurality of translation rollers are uniformly arranged at the lower side of the lower material conveying support frame, translation limiting baffle strips are respectively and fixedly arranged on the material conveying support frames at the two sides of the translation rollers horizontally, so that the smooth and accurate reciprocating translation movement of the lower material conveying support frame can be realized, and the translation adjustment is carried out along the horizontal direction by the lower material conveying support frame, the utility model can efficiently and conveniently adjust the conveying distance and the conveying position of sand and stone, realize the stable and accurate conveying of the sand and stone to the required position for production, utilize the upper side of the upper conveying bracket to be sequentially and horizontally connected with a plurality of upper bearing belt rotating rollers along the horizontal direction, the upper side of the lower conveying bracket to be sequentially and horizontally connected with a plurality of lower bearing belt rotating rollers along the horizontal direction, the upper bearing belt rotating rollers can support the upper conveying belt, the lower bearing belt rotating rollers can support the lower conveying belt, so that the upper conveying belt and the lower conveying belt can be effectively prevented from generating deviation and deflection in the conveying and guiding process, the stable and smooth continuous conveying and guiding of sand and stone can be realized, through the structure, the utility model has reasonable structural design, can be conveniently and smoothly cleaned in the conveying process of sand and stone, can stably and efficiently convey the sand and stone to the required position for production as required, and improves the automation degree of sand and stone conveying, the requirements of production and use are met.

Drawings

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

Fig. 2 is a schematic top view of the connection between the first hopper and the second hopper of the present invention.

Fig. 3 is a front view of the connection structure of the upper and lower feeding belts of the present invention.

In the figure: 1. the automatic cleaning machine comprises a first hopper, a second hopper, a first material conveying belt, a second material conveying belt, a third material conveying belt, a fourth material conveying support frame, a fourth material conveying screen guide plate, a fourth material cleaning guide pipe, a fourth material cleaning spray head, a fifth material cleaning spray head, a sixth material conveying support frame, a fifth material conveying support frame, a sixth material conveying roller, a sixth material conveying motor, a sixth belt, a fourth material conveying motor, a fourth belt, a sixth belt, a fourth material conveying belt.

Detailed Description

To further illustrate the present invention, a specific embodiment of a sand and gravel material transfer mechanism for preparing concrete will be further explained below with reference to the accompanying drawings, and the following embodiment is illustrative of the present invention and the present invention is not limited to the following embodiment.

As shown in fig. 1, 2 and 3, the utility model relates to a sand material conveying mechanism for preparing concrete, which comprises a first hopper 1, a second hopper 2, an upper conveying belt 3, a lower conveying belt 4, a guide belt 5 and a conveying support frame 6, wherein the first hopper 1 and the second hopper 2 are sequentially and fixedly arranged from top to bottom along an inclined direction, a filter screen guide plate 7 is obliquely arranged at the lower side of the first hopper 1, the lower end of the filter screen guide plate 7 is communicated with the upper part of the second hopper 2, the filter screen guide plate 7 is of a C-shaped structure with an upward opening, a cleaning guide plate 8 is obliquely and downwardly arranged at the lower side of the filter screen guide plate 7, the upper end of the cleaning guide plate 8 is fixedly connected with the outer side wall of the second hopper 2, a cleaning water guide pipe 9 is obliquely arranged at the upper side of the filter screen guide plate 7, the cleaning water guide pipe 9 is arranged in parallel with the filter screen guide plate 7, the cleaning water guide pipe 9 is of a U-shaped structure, a plurality of material washing water spray nozzles 10 are uniformly arranged along the side of the filter screen guide plate 7 below the cleaning water guide pipe 9, a cleaning water inlet pipe 11 is communicated with the middle part of one side of a cleaning water guide pipe 9, a material conveying support frame 6 is horizontally arranged below a second hopper 2, an upper material conveying support frame 12 and a lower material conveying support frame 13 are sequentially and horizontally arranged above the material conveying support frame 6 from top to bottom, a plurality of upper supporting upright rods 14 are vertically and uniformly arranged between the lower side of the upper material conveying support frame 12 and the material conveying support frame 6, two sides of the upper material conveying support frame 12 are respectively and horizontally and rotatably connected with upper material conveying rollers 15, an upper material conveying belt 3 is horizontally arranged on the upper side of the upper material conveying support frame 12, two sides of the upper material conveying belt 3 are respectively and rotatably connected with the upper material conveying rollers 15 on two sides of the upper material conveying support frame 12, the upper material conveying belt 3 is arranged on the lower side of the second hopper 2, an upper material conveying motor 16 is horizontally and fixedly arranged on the outer side of the upper material conveying support frame 12, the upper material conveying motor 16 is in transmission connection with the adjacent upper material conveying rollers 15 by adopting an upper connecting belt 17, a plurality of translation rollers 18 are uniformly arranged on the lower side of the lower material conveying support frame 13, the material conveying support frames 6 at two sides of the translational roller 18 are respectively and horizontally fixedly provided with translational limit stop strips 19, two sides above the lower material conveying support frame 13 are respectively and horizontally and rotatably connected with lower material conveying rotating rollers 20, the lower material conveying belt 4 is horizontally arranged at the upper side of the lower material conveying support frame 13, two sides of the lower material conveying belt 4 are respectively and spirally connected with the lower material conveying rotating rollers 20 at two sides of the lower material conveying support frame 13, the outer side of the lower material conveying support frame 13 is horizontally and fixedly provided with a lower material conveying motor 21, the lower material conveying motor 21 is in transmission connection with the adjacent lower material conveying rotating rollers 20 by adopting a lower connecting belt 22, the lower material conveying belt 4 is arranged below the upper material conveying belt 3, the upper material conveying belt 3 and the lower material conveying belt 4 are mutually arranged in parallel, the upper material conveying support frame 23 is horizontally and fixedly arranged on the lower material conveying support frame 13 below the end part of the lower material conveying belt 4, two sides of the material guiding support frame 23 are respectively and horizontally and rotatably connected with rotating rollers 24, the guiding belt 5 is horizontally arranged at the upper side of the guiding support frame 23, two sides of a guide belt 5 are respectively wound and connected with guide rotating rollers 24 on two sides of a guide support 23, the guide belt 5 is horizontally arranged on the lower side of the end part of a lower material conveying belt 4, the guide belt 5 and the lower material conveying belt 4 are mutually vertical, a guide motor 25 is horizontally and fixedly arranged on the outer side of the guide support 23, the guide motor 25 drives the guide rotating rollers 24 to rotate, two side end parts above the material conveying support frame 6 are respectively vertically and rotatably connected with a reciprocating rotating chain wheel 26, two side end parts below the material conveying support frame 6 are respectively vertically and rotatably connected with a transition chain wheel 27, a reciprocating traction chain 28 is horizontally arranged on the material conveying support frame 6, the reciprocating traction chain 28 is sequentially connected with the reciprocating rotating chain wheel 26 on two side end parts above the material conveying support frame 6 and the transition chain wheel 27 on two side end parts below the material conveying support frame 6, two ends on the upper side of the reciprocating traction chain 28 are respectively and fixedly connected with two ends of the lower material conveying support frame 13, one side of the material conveying support frame 6 is horizontally and fixedly provided with a reciprocating traction motor 29, and the reciprocating traction motor 29 is in transmission connection with the adjacent reciprocating rotating chain wheel 26 through a reciprocating traction belt 30.

According to the utility model, the upper side of the upper material conveying support 12 is sequentially and horizontally connected with the plurality of upper belt bearing rotating rollers 31 in a rotating manner along the horizontal direction, the plurality of upper belt bearing rotating rollers 31 are arranged above the inner side of the upper material conveying belt 3, the upper side of the lower material conveying support 13 is sequentially and horizontally connected with the plurality of lower belt bearing rotating rollers 32 in a rotating manner along the horizontal direction, the plurality of lower belt bearing rotating rollers 32 are arranged above the inner side of the lower material conveying belt 4, the upper material conveying belt 3 can be supported by the upper belt bearing rotating rollers 31, and the lower material conveying belt 4 can be supported by the lower belt bearing rotating rollers 32, so that the upper material conveying belt 3 and the lower material conveying belt 4 can be effectively prevented from generating deviation in the material conveying and guiding process, and stable and smooth continuous conveying and guiding of sand stones can be realized. The reciprocating traction motor 29 horizontally and fixedly arranged on the material conveying support frame 6 is a servo motor, so that the lower material conveying support 13 can horizontally and accurately reciprocate under the driving of the reciprocating traction motor 29, and the conveying distance and the conveying position of the sand can be efficiently and accurately adjusted.

By adopting the technical scheme, when the sand and stone material conveying mechanism for preparing concrete is used, the first hopper 1 and the second hopper 2 are sequentially and fixedly arranged from top to bottom along the inclined direction, the lower side of the first hopper 1 is obliquely provided with the filter screen material guide plate 7, the lower end of the filter screen material guide plate 7 is communicated with the upper part of the second hopper 2, the lower side of the filter screen material guide plate 7 is obliquely and downwardly provided with the cleaning guide plate 8, the upper side of the filter screen material guide plate 7 is obliquely provided with the cleaning water guide pipe 9, the lower part of the cleaning water guide pipe 9 is uniformly provided with a plurality of washing water spray heads 10 along the side of the filter screen material guide plate 7, the middle part of one side of the cleaning water guide pipe 9 is communicated with the cleaning water inlet pipe 11, and when sand and stones in the first hopper 1 slide into the second hopper 2 along the filter screen material guide plate 7, the sand and stones on the filter screen material guide plate 7 are uniformly washed by the plurality of washing water spray heads 10 at the lower side of the cleaning water guide pipe 9, impurities on the surfaces of the gravels fall onto a cleaning guide plate 8 along a filter screen guide plate 7 in the washing process, the washed gravels continue to be conveyed backwards to guide after sliding into a second hopper 2, the cleaning processing is conveniently and smoothly carried out in the process of conveying the gravels, an upper conveying roller 15 connected with two sides of an upper conveying bracket 12 is respectively wound on two sides of an upper conveying belt 3, the upper conveying belt 3 is arranged on the lower side of the second hopper 2, an upper conveying motor 16 is in transmission connection with the adjacent upper conveying roller 15 by adopting an upper connecting belt 17, two sides of a lower conveying belt 4 are respectively wound on lower conveying rollers 20 connected with two sides of a lower conveying bracket 13, the lower conveying motor 21 is in transmission connection with the adjacent lower conveying roller 20 by adopting a lower connecting belt 22, the lower conveying belt 4 is arranged below the upper conveying belt 3, a guide belt 5 is horizontally arranged on the lower side of the end part of the lower conveying belt 4, the material guiding motor 25 drives the material guiding rotary roller 24 to rotate, the material feeding motor 16 drives the material feeding belt 3 to rotate and transmit, the material feeding motor 21 drives the material feeding belt 4 to rotate and transmit, the material guiding motor 25 drives the material guiding belt 5 to rotate and transmit, so that the gravels falling in the second hopper 2 can be sequentially transmitted along the material feeding belt 3, the material feeding belt 4 and the material guiding belt 5, stable and smooth continuous material guiding of the gravels is realized, the reciprocating traction chain 28 is sequentially connected with the reciprocating rotary chain wheel 26 at the upper end part of the material conveying support frame 6 and the transition chain wheel 27 at the lower end part of the material conveying support frame 6, the upper end part of the reciprocating traction chain 28 is respectively and fixedly connected with the two ends of the material conveying support frame 13, the reciprocating traction motor 29 is in transmission connection with the adjacent reciprocating rotary chain wheel 26 by the reciprocating traction belt 30, the reciprocating traction motor 29 drives the material conveying support frame 13 to reciprocate along the horizontal direction by the reciprocating traction chain 28, the lower side of a lower material conveying support 13 is uniformly provided with a plurality of translation rollers 18, translation limiting barrier strips 19 are respectively and horizontally and fixedly arranged on material conveying support frames 6 at two sides of the translation rollers 18, so that smooth and accurate reciprocating translation motion of the lower material conveying support 13 can be realized, translation adjustment is carried out along the horizontal direction through the lower material conveying support 13, the conveying distance and the conveying position of sand and stones can be efficiently and conveniently adjusted, stable and accurate conveying of the sand and stones to a required production position can be realized, the upper side of an upper material conveying support 12 is sequentially and horizontally rotatably connected with a plurality of upper bearing belt rotating rollers 31 along the horizontal direction, the upper side of the lower material conveying support 13 is sequentially and horizontally rotatably connected with a plurality of lower bearing belt rotating rollers 32 along the horizontal direction, the upper bearing belt rotating rollers 31 can support an upper material conveying belt 3, the lower bearing belt rotating rollers 32 can support a lower material conveying belt 4, so that the upper material conveying belt 3 and the lower material conveying belt 4 can be effectively prevented from generating deflection in the material conveying process, realize the steady and smooth continuous conveying guide of grit. Through the structure, the sand and stone conveying device is reasonable in structural design, can be used for conveniently and smoothly cleaning sand and stone in the conveying process, can convey the sand and stone to a position required by production stably and efficiently according to needs, improves the automation degree of sand and stone conveying, and meets the requirements of production and use.

The above description of the present invention is intended to be illustrative. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides a grit material transport mechanism for preparing concrete which characterized in that: the sand and stone material conveying mechanism for preparing concrete comprises a first hopper, a second hopper, an upper material conveying belt, a lower material conveying belt, a material guiding belt and a material conveying supporting frame, wherein the first hopper and the second hopper are sequentially and fixedly arranged along the inclined direction from top to bottom, a filter screen material guiding plate is obliquely arranged at the lower side of the first hopper, the lower end of the filter screen material guiding plate is communicated with the upper part of the second hopper, the filter screen material guiding plate is of a C-shaped structure with an upward opening, a cleaning guide plate is obliquely and downwards arranged at the lower side of the filter screen material guiding plate, the upper end of the cleaning guide plate is fixedly connected with the outer side wall of the second hopper, a cleaning water guide pipe is obliquely arranged at the upper side of the filter screen material guiding plate, the cleaning water guide pipe is parallel to the filter screen material guiding plate and is of a U-shaped structure, a plurality of material cleaning water spray nozzles are uniformly arranged along the side of the filter screen material guiding plate below the cleaning water guide pipe, and a cleaning water inlet pipe is communicated with the middle part of one side of the cleaning water guide pipe, the material conveying support frame is horizontally arranged below the second hopper, an upper material conveying support frame and a lower material conveying support frame are sequentially and horizontally arranged above the material conveying support frame from top to bottom, a plurality of upper support vertical rods are vertically and uniformly arranged between the lower side of the upper material conveying support frame and the material conveying support frame, two sides of the upper material conveying support frame are respectively and horizontally and rotatably connected with upper material conveying rotating rollers, an upper material conveying belt is horizontally arranged on the upper side of the upper material conveying support frame, two sides of the upper material conveying belt are respectively wound on the upper material conveying rotating rollers connected with two sides of the upper material conveying support frame, the upper material conveying belt is arranged on the lower side of the second hopper, an upper material conveying motor is horizontally and fixedly arranged on the outer side of the upper material conveying support frame, the upper material conveying motor is in transmission connection with the adjacent upper material conveying rotating rollers by adopting an upper connecting belt, a plurality of translation rollers are uniformly arranged on the lower side of the lower material conveying support frame, and translation limiting stop strips are respectively and horizontally and fixedly arranged on the material conveying support frames on two sides of the translation rollers, two sides above the lower material conveying bracket are respectively and horizontally connected with a lower material conveying rotating roller in a rotating way, a lower material conveying belt is horizontally arranged on the upper side of the lower material conveying bracket, two sides of the lower material conveying belt are respectively and spirally connected with the lower material conveying rotating rollers on two sides of the lower material conveying bracket, a lower material conveying motor is horizontally and fixedly arranged on the outer side of the lower material conveying bracket, the lower material conveying motor is in transmission connection with the adjacent lower material conveying rotating rollers by adopting a lower connecting belt, the lower material conveying belt is arranged below the upper material conveying belt, the upper material conveying belt and the lower material conveying belt are arranged in parallel, a material guiding bracket is horizontally and fixedly arranged on the lower material conveying bracket below the end part of the lower material conveying belt, two sides of the material guiding bracket are respectively and horizontally connected with a material guiding rotating roller in a rotating way, the material guiding belt is horizontally arranged on the upper side of the material guiding bracket, two sides of the material guiding belt are respectively and spirally connected with the material guiding rotating rollers on two sides of the material guiding bracket, the material guiding belt is horizontally arranged on the lower side of the end part of the lower material conveying belt, the material guide belt and the lower material conveying belt are perpendicular to each other and arranged, a material guide motor is horizontally and fixedly arranged on the outer side of the material guide support, the material guide motor drives a material guide rotary roller to rotate, two side end portions of the upper side of the material conveying support are respectively vertically and rotatably connected with a reciprocating rotary chain wheel, two side end portions of the lower side of the material conveying support are respectively and vertically and rotatably connected with a transition chain wheel, a reciprocating traction chain is horizontally and fixedly arranged on the upper side of the material conveying support, the reciprocating traction chain is sequentially connected with the reciprocating rotary chain wheel at two side end portions of the upper side of the material conveying support and the transition chain wheel at two side end portions of the lower side of the material conveying support, two ends of the upper side of the reciprocating traction chain are respectively and fixedly connected with two ends of the lower material conveying support, a reciprocating traction motor is horizontally and fixedly arranged on one side of the material conveying support, and the reciprocating traction motor is connected with the adjacent reciprocating rotary chain wheel in a reciprocating traction belt transmission mode.

2. A grit material transfer mechanism for use in the preparation of concrete as claimed in claim 1 wherein: go up and pass material support upside and rotate along the horizontal direction level in proper order and be connected with many and go up to hold and take to change the roller, many are gone up to hold and take to change the roller and set up in the inboard top of material belt of last, pass down material support upside and rotate along the horizontal direction level in proper order and be connected with many and hold down and take to change the roller, many hold down to take to change the roller and set up in passing down the inboard top of material belt.

3. A grit material transfer mechanism for use in the preparation of concrete as claimed in claim 1 wherein: the reciprocating traction motor horizontally and fixedly arranged on the material conveying support frame is a servo motor.