CN209755675U - raw material grading and mixing device for preparing ready-mixed mortar - Google Patents

Abstract

the utility model relates to the technical field of concrete processing, in particular to a raw material grading and mixing device for preparing ready-mixed mortar, which comprises a stirring machine body, a stirring mechanism and a screening mechanism, wherein the stirring machine body comprises a stirring cavity, a receiving platform and a screening area; the stirring mechanism comprises a driving component and a stirring component; the sieve material mechanism includes connection pad, coupling assembling and sieve material subassembly, and the top of rabbling mechanism is located the central point in sieve material district and puts the department to be connected the setting through the top of sieve material mechanism and rabbling mechanism, realize that sieve material mechanism drives by the rabbling mechanism operation and carries out horizontal reciprocating motion in step, realize the purpose of automatic sieve material when reaching the stirring, the utility model discloses can realize stirring, sieve material, sweep the material, clear away processes such as impurity and go on in step, can sieve simultaneously and mix different materials, the high-efficient power resource that utilizes reduces processing step, uses manpower sparingly and time cost, improves production efficiency greatly.

Description

Raw material grading and mixing device for preparing ready-mixed mortar

Technical Field

the utility model relates to a concrete processing technology field especially relates to a preparation of ready-mixed mortar is with raw and other materials mixing arrangement in grades.

Background

the concrete is a general term for engineering composite material formed by binding aggregate into a whole by using a binding material, generally refers to cement concrete which is prepared by mixing cement as the binding material, sand and stone as the aggregate, water, an additive and an admixture according to a certain proportion and stirring, and is also called ordinary concrete, and is widely applied to civil engineering.

the utility model discloses a concrete screening stirring all-in-one of pouring that chinese patent application number is CN201621250626.9, including vibrating screen, vibration platform, outside motor, eccentric runner, additive groove, handrail, axle, stirring vane, inside motor, wheel, dodge gate, outside motor passes through the axle with eccentric runner and links to each other, and eccentric runner installs on vibration platform.

In the technical scheme, unscreened yellow sand is poured into the vibrating screen, the external motor rotates to drive the eccentric runner on the vibrating platform to rotate, and the vibrating screen is vibrated, so that the screening purpose is achieved, water and additives can be added into the stirring chamber through the additive groove, and the internal motor 9 rotates to drive the stirring blades to rotate, so that the stirring process of concrete is realized. In the technical scheme, the materials can be screened and stirred only by simultaneously matching a plurality of motors, so that the operation procedures are more, the energy utilization rate is low, and the production cost is high; in addition, waste residues generated by screening in the technical scheme need to be manually dumped, the workload of workers is increased, and filter screens are easily blocked due to waste residue accumulation, so that the screening effect is influenced; in addition, add agent groove single can only add a material among this technical scheme, and well add the agent groove setting in the side, easily lead to the material to mix unevenly.

in summary, the technical problems of material screening and stirring power separation, complex operation process, low energy utilization rate, high production cost and the like exist in the technical scheme.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art's weak point, provide a raw and other materials grading mixing device is used in ready-mixed mortar preparation, through sieve material mechanism and the setting of being connected of rabbling mechanism, drive sieve material mechanism in step when making the rabbling mechanism rotatory and carry out horizontal reciprocating motion, realize the purpose of automatic sieve material when reaching the stirring, solve sieve material and stirring power separation, the operating procedure that exist among the prior art problem that energy utilization is low, manufacturing cost is high complicated.

In order to solve the technical problem, the utility model provides a raw and other materials grading mixing device is used in ready-mixed mortar preparation which characterized in that includes:

The stirring machine comprises a stirring body and a material sieving region, wherein the material sieving region is arranged at the upper part of the stirring cavity, and a material receiving platform is arranged between the stirring cavity and the material sieving region;

The stirring mechanism is vertically arranged on the stirring machine body, penetrates through the stirring cavity and is positioned at the center of the material screening area; and

Sieve material mechanism, a plurality of sieve material mechanism is followed rabbling mechanism's the central axis circumference equidistance set up in on the sieve material district, should sieve material mechanism piles up the setting from top to bottom, its all with rabbling mechanism's top is connected in same tie point, and it by rabbling mechanism operation drives synchronous operation.

further, the stirring mechanism includes:

the driving assembly is arranged at the bottom of the stirring machine body, the top of the driving assembly penetrates through the bottom of the stirring machine body and is arranged in the material screening area through a stirring cavity, and the driving assembly drives the stirring mechanism and the material screening mechanism to synchronously operate;

The stirring assembly is arranged in the stirring cavity, sleeved on the driving assembly and driven to rotate by the driving assembly.

further, the driving assembly includes:

The driving piece is vertically arranged below the stirring machine body through a mounting seat;

the driving shaft vertically penetrates through the stirring machine body, is superposed with the central shaft of the stirring machine body, and is in transmission connection with the driving piece through the connecting piece.

further, the stirring assembly comprises:

The connecting sleeve is sleeved on the driving shaft and is coaxially arranged with the driving shaft; and

Stirring paddle leaf, stirring paddle leaf follows the setting is connected to the axis circumference equidistance of drive shaft, and it is fan-shaped setting, and its axis direction spiral setting along the drive shaft.

further, the sieve material mechanism includes:

the connecting disc is connected to the top of the stirring mechanism and rotates synchronously with the stirring mechanism;

the connecting assembly is arranged on the connecting disc, one end of the connecting assembly, which is opposite to the connecting disc, is eccentrically hinged with the connecting disc, and the end of the connecting assembly, which is back to the connecting disc, slides in a reciprocating manner along a straight line; and

the material sieving component is connected with one end of the connecting disc in a back direction of the connecting assembly, and the stirring mechanism drives the connecting disc to slide in a reciprocating mode through the connecting assembly.

Further, the connection assembly includes:

one end of the connecting rod is hinged with the connecting disc, and the other end of the connecting rod is arranged in a horizontal swinging mode;

one end of the telescopic rod is hinged with one end of the connecting rod, which horizontally swings, and the other end of the telescopic rod is fixedly connected with the screening component;

The limiting rod is perpendicular to the telescopic rod, two ends of the limiting rod are connected with the screening area, a limiting block is arranged in the middle of the limiting rod, and the telescopic rod is arranged on the limiting block in a penetrating mode.

further, the screen pack includes:

the middle part of the connecting plate is fixedly connected with one end of the connecting component, which slides in a reciprocating manner; and the screening plate is fixedly connected with the lower end of the connecting plate, and screening holes are uniformly distributed at one end of the screening plate connected with the connecting plate.

Preferably, the sieve plate is obliquely arranged, one end of the sieve plate, which is back to the connecting plate, is lower than the bottom of the connecting plate, and baffles are arranged on two sides of the sieve plate along the sliding direction.

Preferably, the lower terminal surface of sieve flitch is connected and is provided with the cleaning board, the bottom of this cleaning board with connect the material platform to contradict and set up, and the both sides of this cleaning board are provided with the limiting plate, the cleaning board is followed the limiting plate reciprocating sliding.

Preferably, the sweeping plate and the screening plate are arranged in a direction perpendicular to the reciprocating sliding direction.

The utility model has the advantages that:

(1) In the utility model, the material sieving mechanism is synchronously driven to horizontally reciprocate when the stirring mechanism rotates through the connection arrangement of the material sieving mechanism and the stirring mechanism, so that the aim of automatically sieving materials is fulfilled while stirring, power resources are efficiently utilized, processing steps are reduced, manpower and time cost are saved, the production efficiency is greatly improved, and the problems of separation of the material sieving mechanism and the stirring power, complex operation procedure, low energy utilization rate and high production cost in the prior art are solved;

(2) In the utility model, the sweeping board is connected and arranged on the lower end face of the screening board, and the bottom of the sweeping board is in conflict with the material receiving table, so that the materials falling onto the material receiving table are synchronously swept into the stirring cavity during screening, the workload of operators is reduced, the time is saved, and the working efficiency is further improved;

(3) in the utility model, one end of the sieving plate, which is opposite to the connecting plate, is lower than the inclined setting of the connecting plate, so that large granular impurities filtered out by the automatic sieving plate of the sieving plate can fall under the action of vibration and gravity, and the phenomenon that the sieving holes are blocked due to the accumulation of the impurities on the sieving plate and the automatic sieving effect is influenced is avoided;

(4) in the utility model, a plurality of screening mechanisms are arranged at equal intervals on the circumference and are driven by the driving mechanism to reciprocate together, so that a plurality of different materials can be screened synchronously and mixed and added into the stirring cavity, and the processing and production requirements of concrete with different components in actual production are met;

to sum up, the utility model discloses can realize that processes such as stirring, sieve material, scavenging material, cleaing away impurity go on in step, and can sieve simultaneously and mix different materials, have advantages such as automatic, high efficiency, energy-conservation, saving manufacturing cost, satisfy diversified product production needs, have good economy and social, be fit for using widely.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front cross-sectional view of the present invention;

FIG. 3 is a front view of the stirring mechanism;

Fig. 4 is a top view of the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 1;

FIG. 6 is a schematic view of a connection structure of the connection plate, the material sieving plate and the sweeping plate.

Detailed Description

The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the accompanying drawings.

example one

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 5, a raw material classifying and mixing device for preparing ready-mixed mortar is characterized by comprising:

the stirring machine comprises a stirring machine body 1, wherein the stirring machine body 1 comprises a stirring cavity 11 and a material sieving area 12, the material sieving area 12 is arranged at the upper part of the stirring cavity 11, and a material receiving platform 13 is arranged between the stirring cavity 11 and the material sieving area 12;

The stirring mechanism 2 is vertically arranged on the stirring machine body 1, penetrates through the stirring cavity 11 and is positioned at the center of the material sieving area 12 at the top; and

Sifting mechanism 3, a plurality of sifting mechanism 3 is followed the central axis circumference equidistance of rabbling mechanism 2 set up in on the sieve material district 12, should sifting mechanism 3 piles up the setting from top to bottom, its all with the top of rabbling mechanism 2 is connected in same tie point, and it by rabbling mechanism 2 operation drives synchronous operation.

In this embodiment, the top of the stirring mechanism is located at the center of the material sieving area, and the material sieving mechanism is connected with the top of the stirring mechanism, so that the purpose that the material sieving mechanism is driven by the operation of the stirring mechanism to synchronously operate is achieved, and the material sieving operation and the stirring operation jointly utilize the same power resource; the material sieving area is arranged at the upper part of the stirring cavity, so that the sieved material falls into the stirring cavity to be subjected to the next stirring procedure; through setting up a plurality of sieve material mechanisms to make it pile up the setting from top to bottom, realize that a plurality of sieve material mechanisms can carry out same or different kind of material screening operation and mutual noninterference simultaneously according to actual production needs.

further, the stirring mechanism 2 includes:

the driving assembly 21 is arranged at the bottom of the stirring machine body 1, the top of the driving assembly 21 penetrates through the bottom of the stirring machine body 1 and is arranged in the material sieving area 12 through a stirring cavity 11, and the driving assembly drives the stirring mechanism 2 and the material sieving mechanism 3 to synchronously operate;

And the stirring assembly 22 is arranged in the stirring cavity 11, sleeved on the driving assembly 21 and driven to rotate by the driving assembly 21.

Further, the driving assembly 21 includes:

the driving piece 211 is vertically arranged below the stirring machine body 1 through a mounting seat 210;

and the driving shaft 212 vertically penetrates through the stirring machine body 1, is superposed with the central shaft of the stirring machine body 1, and is in transmission connection with the driving piece 211 through a connecting piece 213.

Further, the stirring assembly 22 includes:

the connecting sleeve 221 is sleeved on the driving shaft 212, and the connecting sleeve 221 and the driving shaft 212 are coaxially arranged; and

And the stirring blades 222 are arranged along the circumference of the central axis of the driving shaft 212 in an equidistant connection mode, are arranged in a fan shape, and are spirally arranged along the direction of the central axis of the driving shaft 212.

In the embodiment, the stirring blades are arranged in a fan shape, so that the stirring blades can be fully contacted with materials; and the stirring paddle blades are spirally arranged along the central axis direction of the driving shaft, so that the materials at the bottom of the stirring cavity are turned over in the working process, and the purpose of fully mixing and stirring is achieved.

Further, the material sieving mechanism 3 includes:

The connecting disc 31 is connected to the top of the stirring mechanism 2, and the connecting disc 31 and the stirring mechanism 2 rotate synchronously;

the connecting assembly 32 is arranged on the connecting disc 31, one end of the connecting assembly 32, which is opposite to the connecting disc 31, is eccentrically hinged with the connecting disc 31, and one end of the connecting assembly 32, which is opposite to the connecting disc 31, slides in a reciprocating manner along a straight line; and

and the material sieving assembly 33, the material sieving assembly 33 and the connecting assembly 32 back to one end of the connecting disc 31 are connected and arranged, and the stirring mechanism 2 drives the material sieving assembly to slide in a reciprocating manner through the connecting assembly 32.

in this embodiment, through connection pad and rabbling mechanism top fixed connection, set up coupling assembling again, make its one end and connection pad eccentric hinge, the other end and sieve material subassembly fixed connection, and then drive sieve material mechanism moving purpose in step when realizing the rabbling mechanism operation.

Further, the connection assembly 32 includes:

one end of the connecting rod 321 is hinged with the connecting disc 31, and the other end of the connecting rod 321 is arranged in a horizontal swinging mode;

one end of the telescopic rod 322 is hinged with one end of the connecting rod 321, which horizontally swings, and the other end of the telescopic rod 322 is fixedly connected with the screening component 33;

the limiting rod 323 is perpendicular to the telescopic rod 322, two ends of the limiting rod 323 are connected with the material sieving area 12, a limiting block 324 is arranged in the middle of the limiting rod 323, and the telescopic rod 322 penetrates through the limiting block 324.

Further, the screen assembly 33 includes:

The middle part of the connecting plate 331 is fixedly connected with one end of the connecting component 32, which slides back and forth; and

And the screening plate 332, the screening plate 332 is fixedly connected with the lower end of the connecting plate 331, and screening holes 333 are uniformly distributed at one end of the screening plate 332 connected with the connecting plate 331.

in this embodiment, through the articulated setting of connecting rod and telescopic link, form crank link means, through the articulated setting of connecting rod and connection pad, realize power transmission, further through setting up the gag lever post, through the limiting displacement of gag lever post, make the telescopic link of wearing to establish on the gag lever post can only be along being horizontal reciprocating motion with gag lever post vertically direction under the drive of connecting rod, and then drive the sieve flitch and carry out horizontal reciprocating motion, realize automatic sieve material purpose.

example two

For simplicity, only the differences between the second embodiment and the first embodiment will be described below; the second embodiment is different from the first embodiment in that:

As shown in fig. 5 to 6, the sieve plate 332 is disposed obliquely, and one end of the sieve plate facing away from the connecting plate 331 is lower than the bottom of the connecting plate 331, and baffles 334 are disposed along both sides of the sliding direction.

the lower end surface of the sieve plate 332 is further provided with a cleaning plate 335 in a connecting manner, the bottom of the cleaning plate 335 is abutted against the material receiving platform 13, two sides of the cleaning plate 335 are provided with limiting plates 336, and the cleaning plate 335 slides back and forth along the limiting plates 336.

the sweeping plate 335 is perpendicular to the direction of the reciprocating sliding of the sieve plate 332.

it should be noted that, in the working process, the reciprocating motion of the material sieving plate drives the cleaning plate to move synchronously, so that the materials falling onto the material receiving table are cleaned into the stirring cavity synchronously during material sieving; meanwhile, one end of the screening plate, which is back to the connecting plate, is lower than the connecting plate, so that large-particle impurities filtered out by the automatic screening plate can automatically drop under the action of vibration and gravity, and the manual material sweeping and impurity cleaning process is replaced.

It needs to be further explained that the cleaning plate is taken as a boundary, the material sieving holes are uniformly distributed only at one end of the material sieving plate connected with the connecting plate, so as to be matched with the cleaning plate, so that the filtered materials are completely swept into the stirring cavity by the cleaning plate after falling from the material sieving holes, and one end of the material sieving plate, which is back to the connecting plate, is used for automatically dropping and cleaning impurities; it can think of, if the sieve material hole is covered with sieve material board surface, in the course of the work, can lead to using the sweeping board as the border, the material of sieve material board connecting plate one side dorsad falls outside the device or can't be cleaned into the stirring chamber by the sweeping board, causes the material extravagant, and because the sieve flitch sets up for the slope, easily leads to the large granule impurity that filters out to block the sieve material hole of sieve material board connecting plate one side dorsad, causes partial impurity to push up, influences automatic clearance effect.

EXAMPLE III

referring to the first embodiment or the second embodiment, as shown in fig. 4, since the plurality of material sieving mechanisms are equidistantly arranged along the circumference of the central axis of the stirring mechanism, in the actual production process, a plurality of different materials can be respectively placed on each material sieving mechanism according to requirements, so that different materials can be synchronously sieved and mixed into the stirring cavity, and the requirements of different-component concrete processing production in the actual production process can be met.

In the working process, a power supply is turned on, a driving piece starts to work, the driving piece drives a driving shaft to rotate through transmission of a connecting piece, the driving shaft drives a connecting disc at the top of the driving shaft to rotate, the connecting disc drives a connecting rod to move, a telescopic rod penetrating through a limiting rod is driven by the connecting rod to horizontally reciprocate in the direction vertical to the limiting rod, a screening plate is driven by the telescopic rod to horizontally reciprocate, materials falling on the screening plate are automatically screened and filtered, the filtered materials fall onto a material receiving table through a screening hole, and are further cleaned into a stirring cavity by a cleaning plate at the lower end face of the screening plate, and large granular impurities filtered out automatically fall outside the device under the action of vibration and gravity; meanwhile, the driving shaft drives the connecting sleeve and the stirring paddle on the connecting sleeve to rotate, and materials falling into the stirring cavity are mixed and stirred. In the actual production process, a plurality of different materials can be placed on each screening mechanism according to needs, different materials are synchronously screened and mixed and added into the stirring cavity, and the requirements of processing and production of concrete with different components are met.

It should be pointed out that, in the actual production process, the driving piece can select for use arbitrary one such as motor, diesel engine can provide rotary power's equipment, the utility model discloses well preferred is the motor, and it is convenient that it has the energy source, exports stable advantage.

in the present invention, it is to be understood that: the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

the utility model discloses a change or replacement that can think easily under the technical suggestion, if through propelling movement subassembly and positioning mechanism cooperation, realize waiting to bend the automatic preliminary bending after the directional transfer of steel pipe, combine to place the special construction setting of subassembly and propelling movement subassembly, make the steel pipe bend in-process automatic feed quantity adjustment of carrying on, realize the high accuracy of steel pipe and bend the design concept of production, all should cover within the protection scope of the utility model discloses a protection scope is not limited to this, any technical personnel who are familiar with this technical field are in the utility model discloses a change or replacement that can think easily under the technical suggestion, if through propelling movement subassembly and positioning mechanism cooperation, realize waiting to bend the automation behind the steel pipe orientation and tentatively bend. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a raw and other materials grading mixing device for ready-mixed mortar preparation which characterized in that includes:

The stirring machine comprises a stirring machine body (1), wherein the stirring machine body (1) comprises a stirring cavity (11) and a material screening area (12), the material screening area (12) is arranged at the upper part of the stirring cavity (11), and a material receiving platform (13) is arranged between the stirring cavity (11) and the material screening area (12);

The stirring mechanism (2) is vertically arranged on the stirring machine body (1), penetrates through the stirring cavity (11) and is positioned at the center of the material sieving area (12) at the top; and

Sieve material mechanism (3), a plurality of sieve material mechanism (3) are followed the central axis circumference equidistance of rabbling mechanism (2) set up in on sieve material district (12), should sieve material mechanism (3) are and pile up the setting from top to bottom, its all with the top of rabbling mechanism (2) is connected in same tie point, and its by rabbling mechanism (2) operation drives synchronous operation.

2. The device for graded mixing of raw materials for preparation of ready-mixed mortar according to claim 1, characterized in that the stirring means (2) comprises:

the driving assembly (21) is arranged at the bottom of the stirring machine body (1), the top of the driving assembly (21) penetrates through the bottom of the stirring machine body (1) and is arranged in the material screening area (12) through a stirring cavity (11), and the driving assembly drives the stirring mechanism (2) and the material screening mechanism (3) to synchronously operate;

The stirring assembly (22) is arranged in the stirring cavity (11), sleeved on the driving assembly (21) and driven to rotate by the driving assembly (21).

3. The device for the staged mixing of raw materials for the preparation of ready-mixed mortar according to claim 2, characterized in that the drive assembly (21) comprises:

The driving piece (211) is vertically arranged below the stirring machine body (1) through a mounting seat (210);

The driving shaft (212) vertically penetrates through the stirring machine body (1), is superposed with the central shaft of the stirring machine body (1), and is in transmission connection with the driving piece (211) through a connecting piece (213).

4. the device for the staged mixing of raw materials for the preparation of ready-mixed mortar according to claim 3, wherein the stirring assembly (22) comprises:

the connecting sleeve (221), the said connecting sleeve (221) is set up on the said drive shaft (212), it sets up with the said drive shaft (212) coaxially; and

Stirring paddle leaf (222), stirring paddle leaf (222) are followed the axis circumference equidistance of drive shaft (212) is connected the setting, and it is fan-shaped setting, and its axis direction spiral setting along drive shaft (212).

5. the device for classifying and mixing raw materials for preparing ready-mixed mortar according to claim 1, wherein the screen mechanism (3) comprises:

The connecting disc (31) is connected to the top of the stirring mechanism (2), and the connecting disc (31) and the stirring mechanism (2) rotate synchronously;

the connecting assembly (32) is arranged on the connecting disc (31), one end of the connecting assembly (32), which is opposite to the connecting disc (31), is eccentrically hinged with the connecting disc (31), and one end of the connecting assembly, which is back to the connecting disc (31), slides in a reciprocating manner along a straight line; and

Sieve material subassembly (33), sieve material subassembly (33) with coupling assembling (32) dorsad the setting is connected to the one end of connection pad (31), its by rabbling mechanism (2) pass through coupling assembling (32) and drive reciprocating sliding.

6. a raw material classifying and mixing device for ready-mixed mortar preparation according to claim 5, characterized in that the connection assembly (32) comprises:

one end of the connecting rod (321) is hinged with the connecting disc (31), and the other end of the connecting rod (321) is arranged in a horizontal swinging mode;

One end of the telescopic rod (322) is hinged with one end of the connecting rod (321) which horizontally swings, and the other end of the telescopic rod (322) is fixedly connected with the screening component (33);

The limiting rod (323), the limiting rod (323) with telescopic link (322) set up perpendicularly, its both ends with sieve material district (12) are connected, and its middle part is provided with stopper (324), wear to establish on this stopper (324) telescopic link (322).

7. The device for the staged mixing of raw materials for the preparation of ready-mixed mortar according to claim 5, wherein the screen pack (33) comprises:

the middle part of the connecting plate (331) is fixedly connected with one end of the connecting component (32) which slides in a reciprocating manner; and

The screening plate (332), the screening plate (332) with the lower extreme fixed connection of connecting plate (331), this screening plate (332) with the one end equipartition that connecting plate (331) is connected has sieve material hole (333).

8. The raw material classifying and mixing device for ready-mixed mortar preparation according to claim 7, wherein the screen plate (332) is disposed to be inclined, one end thereof facing away from the connecting plate (331) is lower than the bottom of the connecting plate (331), and baffles (334) are disposed along both sides of the sliding direction thereof.

9. the raw material grading and mixing device for the preparation of the ready-mixed mortar according to claim 7, wherein a cleaning plate (335) is connected to the lower end surface of the screen plate (332), the bottom of the cleaning plate (335) is abutted against the receiving table (13), and limiting plates (336) are arranged on two sides of the cleaning plate (335), and the cleaning plate (335) slides back and forth along the limiting plates (336).

10. The apparatus for classifying and mixing raw materials for preparing ready-mixed mortar according to claim 9, wherein the sweeping plate (335) is disposed perpendicular to a direction in which the screen plate (332) slides reciprocally.