Water reducing agent compounding equipment

Abstract

The utility model relates to the technical field of water reducing agent compounding, in particular to water reducing agent compounding equipment which is used for solving the problem that an existing device is not easy to adapt to compounding requirements of different proportions, the equipment comprises a material taking mechanism, the material taking mechanism comprises a material taking box, and a material storage box is fixedly arranged on the upper portion of the material taking box; a plurality of material taking holes are formed in the material taking box, cavities matched with the material taking holes are formed in the material storage box, and the cavities in the material storage box can communicate with the corresponding material taking holes in the material taking box; a capacity adjusting hopper is axially and slidably connected into the material taking hole, the lower portion of the capacity adjusting hopper communicates with a telescopic pipe, and a material storage cavity in the material taking hole is jointly formed by the space, located on the upper portion of the capacity adjusting hopper, in the material taking hole and the inner space of the telescopic pipe. The volume adjusting hopper can adjust the volume of the material storage cavity when axially moving up and down in the material taking hole; according to the equipment, the taking-out amount of materials is convenient to control by controlling the position of the capacity adjusting hopper, so that the compounding requirements of different proportions are met.

Description

Technical Field

[0001] The utility model relates to the technical field of water reducing agent compounding, in particular to water reducing agent compounding equipment. Background Art

[0002] In the production process of concrete admixtures, water reducer compounding is a key link, which involves the precise ratio and mixing between different admixtures and water reducers. Traditional water reducer compounding methods often rely on manual operations, which is not only inefficient, but also prone to errors, resulting in unstable product quality.

[0003] There are some water reducer compounding equipment on the market, but these equipment still have some shortcomings in material taking and proportioning. For example, the material taking mechanism design of some equipment is not flexible enough and is not easy to adapt to the compounding needs of different proportions. Utility Model Content

[0004] The utility model provides a water reducing agent compounding device to solve the problem that the existing device is not easy to adapt to compounding requirements of different proportions.

[0005] In order to alleviate the above technical problems, the technical solution provided by the utility model is:

[0006] A water reducing agent compounding device comprises a material taking mechanism, wherein the material taking mechanism comprises a material taking box, and a material storage box is fixedly arranged on the upper part of the material taking box;

[0007] The material taking box is provided with a plurality of material taking holes, and the material storage box is provided with cavities matching with the plurality of material taking holes. When the material taking box is located directly below the material storage box, the cavities in the material storage box can be connected to the corresponding material taking holes in the material taking box;

[0008] A capacity adjustment bucket is axially slidably connected in the material taking hole, a telescopic tube is connected to the lower part of the capacity adjustment bucket, and the upper space of the capacity adjustment bucket in the material taking hole and the inner space of the telescopic tube together form a material storage cavity in the material taking hole;

[0009] The capacity adjustment bucket can adjust the volume of the material storage cavity when it moves axially up and down in the material taking hole.

[0010] Furthermore, the lower end of the material taking hole is connected to a bracket, and the bottom end of the telescopic tube is connected to the bracket;

[0011] A first electric telescopic rod is connected between the bracket and the capacity adjustment bucket, and the first electric telescopic rod can control the axial upward or downward movement of the capacity adjustment bucket by extension and retraction.

[0012] Furthermore, a blocking plate is provided between the material storage box and the material extraction box, and two sides of the blocking plate are respectively in contact with the lower end surface of the material storage box and the upper end surface of the material extraction box;

[0013] When the material taking box is located directly below the material storage box, the blocking plate is moved out from between the material taking box and the material storage box, so that the plurality of cavities are connected to the corresponding plurality of material taking holes.

[0014] Furthermore, the end of the blocking plate is connected to a fixed second electric telescopic rod, and the extension and retraction of the second electric telescopic rod can drive the blocking plate to move in or out between the material taking box and the material storage box.

[0015] Furthermore, it also includes a driving mechanism, the driving mechanism includes a frame, the material taking box is fixedly connected to a rectangular frame, and the material taking box and the rectangular frame slide synchronously on the frame;

[0016] A fixed axis in the rectangular frame is connected to a gear for unidirectional rotation, and two groups of teeth alternately meshing with the gear are symmetrically arranged on the inner wall in the length direction of the rectangular frame;

[0017] When the gear is respectively meshed with the two groups of teeth, the material taking box can be driven to approach or move away from the material storage box.

[0018] Furthermore, two third electric telescopic rods are connected to the two faces of the rectangular frame and the material taking box that are farthest apart, and the output ends of the two sets of the third electric telescopic rods are both in contact with the frame;

[0019] When one of the two groups of third electric telescopic rods is extended and the other group is shortened synchronously by an equal length, the meshing state of the two groups of teeth in the rectangular frame and the gear can be switched.

[0020] Furthermore, the output ends of the two groups of the third electric telescopic rods are connected with balls.

[0021] Furthermore, two optical proximity switches are symmetrically arranged on the frame along the sliding direction of the material taking box;

[0022] When the material picking box moves to any of the optical proximity switches, the two groups of third electric telescopic rods in the extended state change to the shortened state, and the shortened state changes to the extended state.

[0023] Furthermore, when the material taking box moves to the optical proximity switch close to the material storage box, it is simultaneously located directly below the material storage box, and the second electric telescopic rod is extended to move the blocking plate out from between the material storage box and the material taking box.

[0024] Furthermore, it also includes a stirring mechanism, which includes a stirring drum connected to the frame, and a feeding hopper is connected to the stirring drum. When the material taking box moves, the plurality of telescopic tubes can be connected to the feeding hopper in sequence.

[0025] The beneficial effects of the utility model are analyzed as follows:

[0026] A water reducing agent compounding device comprises a material taking mechanism, the material taking mechanism comprises a material taking box, a material storage box is fixedly arranged on the upper part of the material taking box; a plurality of material taking holes are opened in the material taking box, a cavity cooperating with the plurality of material taking holes is opened in the material storage box, when the material taking box is located directly below the material storage box, the cavity in the material storage box can be connected to the corresponding material taking holes in the material taking box; a capacity adjustment bucket is axially slidably connected in the material taking hole, a telescopic tube is connected at the lower part of the capacity adjustment bucket, the upper space in the material taking hole located in the capacity adjustment bucket and the inner space of the telescopic tube jointly form a material storage chamber in the material taking hole; the capacity adjustment bucket can adjust the volume of the material storage chamber when it moves axially up and down in the material taking hole.

[0027] When the equipment starts working, the material taking box of the material taking mechanism is located directly below the material storage box, so that the cavity in the material storage box corresponds to and is connected with the multiple material taking holes in the material taking box. At this time, the water reducer or other admixtures in the material storage box can smoothly enter the material taking hole. Each material taking hole is equipped with a capacity adjustment bucket, which can move axially up and down in the material taking hole. By adjusting the position of the capacity adjustment bucket, the volume of the material storage cavity formed by it, the upper space of the material taking hole and the internal space of the telescopic tube can be changed, so that the amount of material in each material taking hole can be accurately controlled according to actual needs, so that the ratio between each admixture and the water reducer is determined, and because the volume of the material storage cavity can be changed, it can adapt to the compounding of water reducers under different proportions. After each material storage cavity is filled with the remaining admixtures and water reducers, the quantitatively taken out admixtures and water reducers are discharged and mixed and stirred for compounding. The lower end of the telescopic tube is on the same plane, and when the material taking hole is receiving the material, the lower end of the telescopic tube is in a closed state. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the related technologies, the drawings required for use in the specific implementation methods or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0029] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0030] Figure 2This is a structural schematic diagram of the capacity adjustment bucket of the utility model;

[0031] Figure 3 It is a structural schematic diagram of the driving mechanism of the utility model;

[0032] Figure 4 It is a structural schematic diagram of the stirring mechanism of the utility model.

[0033] icon:

[0034] 100, stirring mechanism; 110, stirring drum; 120, stirring shaft; 130, stirring rod; 140, motor; 150, feeding hopper; 200, material taking mechanism; 210, material taking box; 220, material taking hole; 230, capacity adjustment bucket; 240, telescopic tube; 250, bracket; 260, first electric telescopic rod; 270, material storage box; 280, positioning block; 290, second electric telescopic rod; 291, blocking plate; 300, driving mechanism; 310, frame; 320, rectangular frame; 330, third electric telescopic rod; 340, ball bearing; 350, rotating shaft; 360, gear; 370, optical proximity switch. DETAILED DESCRIPTION

[0035] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Example

[0039] like Figure 1-Figure 4 As shown, a water reducing agent compounding equipment includes a material taking mechanism 200, and the material taking mechanism 200 includes a material taking box 210, and a material storage box 270 is fixedly arranged on the upper part of the material taking box 210; a plurality of material taking holes 220 are opened in the material taking box 210, and a cavity cooperating with the plurality of material taking holes 220 is opened in the material storage box 270. When the material taking box 210 is located directly below the material storage box 270, the cavity in the material storage box 270 can be connected to the corresponding material taking holes 220 in the material taking box 210; a capacity adjustment bucket 230 is axially slidably connected in the material taking hole 220, and a telescopic tube 240 is connected to the lower part of the capacity adjustment bucket 230. The upper space in the material taking hole 220 located in the capacity adjustment bucket 230 and the internal space of the telescopic tube 240 together form a material storage chamber in the material taking hole 220; the capacity adjustment bucket 230 can adjust the volume of the material storage chamber when it moves axially up and down in the material taking hole 220.

[0040] The working mechanism of the water reducing agent compounding equipment provided in this embodiment is as follows:

[0041] When the equipment starts working, the material taking box 210 of the material taking mechanism 200 is located directly below the material storage box 270, so that the cavity in the material storage box 270 corresponds to and communicates with the multiple material taking holes 220 in the material taking box 210. At this time, the water reducing agent or other additives in the material storage box 270 can smoothly enter the material taking holes 220. Each material taking hole 220 is equipped with a capacity adjustment bucket 230, and the capacity adjustment bucket 230 can move axially up and down in the material taking hole 220. By adjusting the position of the capacity adjustment bucket 230, the space between it and the upper space of the material taking hole 220 and the internal space of the telescopic tube 240 can be changed. The volume of the material storage chamber formed together can accurately control the amount of material in each material taking hole 220 according to actual needs, so that the ratio between each admixture and water reducer can be determined, and because the volume of the material storage chamber can be changed, it can adapt to the compounding of water reducers under different proportions. After each material storage chamber is filled with the remaining admixtures and water reducers, the quantitatively taken out admixtures and water reducers are discharged and mixed and stirred for compounding. The lower end of the telescopic tube 240 is on the same plane, and when the material taking hole 220 receives the material, the lower end of the telescopic tube 240 is in a closed state.

[0042] Among the optional methods of this embodiment, the more preferred ones are:

[0043] The lower end of the material extraction hole 220 is connected to a bracket 250, and the bottom end of the telescopic tube 240 is connected to the bracket 250; a first electric telescopic rod 260 is connected between the bracket 250 and the capacity adjustment bucket 230, and the first electric telescopic rod 260 can control the axial upward or downward movement of the capacity adjustment bucket 230.

[0044] The capacity adjustment bucket 230 is located in the material collection hole 220 and is connected to the bracket 250 through the first electric telescopic rod 260. When the first electric telescopic rod 260 is extended or retracted, the capacity adjustment bucket 230 can be controlled to move axially upward or downward in the material collection hole 220. By adjusting the position of the capacity adjustment bucket 230, the volume of the material storage cavity formed by the capacity adjustment bucket 230, the upper space of the material collection hole 220 and the internal space of the telescopic tube 240 can be changed.

[0045] Among the optional methods of this embodiment, the more preferred ones are:

[0046] A blocking plate 291 is provided between the material storage box 270 and the material extraction box 210, and the two sides of the blocking plate 291 are respectively fitted with the lower end surface of the material storage box 270 and the upper end surface of the material extraction box 210; when the material extraction box 210 is located directly below the material storage box 270, the blocking plate 291 is moved out from between the material extraction box 210 and the material storage box 270, so that the multiple cavities are connected to the corresponding multiple material extraction holes 220.

[0047] The two sides of the blocking plate 291 are respectively tightly fitted with the lower end surface of the material storage box 270 and the upper end surface of the material extraction box 210, thereby playing a sealing role to prevent material from leaking from the material storage box 270 to the material extraction box 210 when material extraction is not needed. When the material extraction box 210 is located directly below the material storage box 270 and material extraction operation is required, the blocking plate 291 is moved out between the material extraction box 210 and the material storage box 270, and the multiple cavities in the material storage box 270 can be connected with the corresponding material extraction holes 220 in the material extraction box 210, so that the material can smoothly enter the material extraction holes 220 from the material storage box 270.

[0048] Among the optional methods of this embodiment, the more preferred ones are:

[0049] The end of the blocking plate 291 is connected to a fixed second electric telescopic rod 290 , and the extension and retraction of the second electric telescopic rod 290 can drive the blocking plate 291 to move in or out between the material taking box 210 and the material storage box 270 .

[0050] When the material taking box 210 has not yet moved to the bottom of the material storage box 270 or the material taking process is completed, the second electric telescopic rod 290 is in an extended state, pushing the blocking plate 291 to fit tightly against the lower end surface of the material storage box 270, forming an effective seal to prevent material from leaking from the material storage box 270. When the material taking box 210 moves to just below the material storage box 270 and is ready to perform the material taking operation, the second electric telescopic rod 290 begins to contract, driving the blocking plate 291 to move out of the space between the material taking box 210 and the material storage box 270. At this time, the cavity in the material storage box 270 is directly connected to the material taking hole 220 in the material taking box 210, and the material can flow smoothly from the material storage box 270 into the material taking hole 220.

[0051] Regarding the structure of the driving mechanism 300, specifically:

[0052] It also includes a driving mechanism 300, which includes a frame 310. A rectangular frame 320 is fixedly connected to the material picking box 210, and the material picking box 210 and the rectangular frame 320 slide synchronously on the frame 310; a gear 360 is connected to the rectangular frame 320 for unidirectional rotation on a fixed axis, and two groups of teeth that alternately mesh with the gear 360 are symmetrically arranged on the inner wall in the length direction of the rectangular frame 320; when the gear 360 meshes with the two groups of teeth respectively, the material picking box 210 can be driven to approach or move away from the material storage box 270.

[0053] The frame 310 is also connected to a positioning block 280, and the blocking plate 291 passes through the positioning block 280 to be positioned. When the rectangular frame 320 moves on the frame 310, the material picking box 210 will also move accordingly. In the rectangular frame 320, the fixed axis is connected to a gear 360 for unidirectional rotation. The gear 360 controls the reciprocating movement of the material picking box 210 by meshing with two sets of teeth respectively. During the material picking process, when the material picking box 210 approaches the material storage box 270 and is aligned with the material storage box 270, the blocking plate 291 is moved out through the control of the second electric telescopic rod 290, so that the cavity of the material storage box 270 is connected to the material picking hole 220. At this time, the material can flow from the material storage box 270 into the material picking hole 220, and the gear 360 stops rotating at this time. When the material picking hole 220 receives enough material, the gear 360 continues to rotate and switches the meshing state with the two sets of teeth, driving the material picking box 210 away from the material storage box 270 to prepare for the next operation.

[0054] Among the optional methods of this embodiment, the more preferred ones are:

[0055] Two third electric telescopic rods 330 are connected to the two surfaces farthest from each other of the rectangular frame 320 and the material box 210, and the output ends of the two groups of third electric telescopic rods 330 are both in contact with the frame 310; when one group of the two groups of third electric telescopic rods 330 is extended and the other group is synchronously shortened to an equal length, the meshing state of the two groups of teeth in the rectangular frame 320 and the gear 360 can be switched.

[0056] When it is necessary to switch the meshing state of the two sets of teeth in the rectangular frame 320 and the gear 360, one set of the third electric telescopic rods 330 will be extended, while the other set will be shortened by the same length. When one set of the third electric telescopic rods 330 is extended, it will push one side of the rectangular frame 320 toward the frame 310, while the other side will be away from the frame 310. This deflection causes the set of teeth originally meshed with the gear 360 to disengage, while the other set of teeth meshes with the gear 360. Conversely, when this set of the third electric telescopic rods 330 is extended, it will push one side of the rectangular frame 320 toward the frame 310, while the other side will be away from the frame 310. When the telescopic rod 330 is shortened and the other group is extended, the meshing state will switch in the opposite direction, so that the driving mechanism 300 can accurately control the material taking box 210 to approach or move away from the material storage box 270. When it is necessary to take materials, the material taking box 210 is moved to the bottom of the material storage box 270, the blocking plate 291 is removed, and the materials flow from the material storage box 270 into the material taking hole 220. After the material taking is completed, the material taking box 210 moves to a position away from the material storage box 270 to discharge the materials, in preparation for the next material taking.

[0057] Among the optional methods of this embodiment, the more preferred ones are:

[0058] The output ends of the two sets of third electric telescopic rods 330 are both connected with balls 340 .

[0059] The provision of the ball bearings 340 transforms the contact between the third electric telescopic rod 330 and the frame 310 from sliding friction to rolling friction, thereby greatly reducing the friction force.

[0060] Among the optional methods of this embodiment, the more preferred ones are:

[0061] Two optical proximity switches 370 are symmetrically arranged on the frame 310 along the sliding direction of the material picking box 210; when the material picking box 210 moves to any optical proximity switch 370, the two sets of third electric telescopic rods 330 in the extended state change to the shortened state, and the shortened state changes to the extended state.

[0062] The two optical proximity switches 370 play a role in position detection and signal triggering. When the material picking box 210 slides on the frame 310 and approaches any one of the optical proximity switches 370, the optical proximity switch 370 will detect the approach of the material picking box 210 and send a signal. This signal triggers the state switching of the two sets of third electric telescopic rods 330. The third electric telescopic rod that was originally in an extended state will become a shortened state, and the third electric telescopic rod that was originally in a shortened state will become an extended state. This state switching is achieved through a control system. The control system receives the signal sent by the optical proximity switch 370 and controls the extension and retraction action of the third electric telescopic rod 330. By accurately controlling the extension and retraction of the third electric telescopic rod 330, the meshing state switching of the two sets of teeth in the rectangular frame 320 and the gear 360 can be achieved, thereby changing the moving direction of the material picking box 210.

[0063] Among the optional methods of this embodiment, the more preferred ones are:

[0064] When the material taking box 210 moves to the light proximity switch 370 close to the material storage box 270 , it is simultaneously located directly below the material storage box 270 , and the second electric telescopic rod 290 is extended to move the blocking plate 291 out from between the material storage box 270 and the material taking box 210 .

[0065] After the optical proximity switch 370 is triggered, it will first send a signal to the control system, indicating that the material collection box 210 has reached the preset position. At this time, the control system will control the extension of the second electric telescopic rod 290. The second electric telescopic rod 290 is connected to the blocking plate 291. Its extension will push the blocking plate 291 to move outward, thereby moving it out of the space between the material storage box 270 and the material collection box 210, so that the material can smoothly flow into the material collection hole 220 of the material collection box 210. At the same time, since the material collection box 210 has been positioned by the optical proximity switch 370, the material collection box 210 is just below the material storage box 270, ensuring that the material can flow into the material collection box 210 accurately and correctly, avoiding material waste or insufficient material collection. After the blocking plate 291 is removed and the material collection box 210 is aligned, the material can flow freely from the material storage box 270 into the material collection box 210.

[0066] Regarding the structure of the stirring mechanism 100, specifically:

[0067] It also includes a stirring mechanism 100, which includes a stirring drum 110 connected to the frame 310, and a feeding hopper 150 is connected to the stirring drum 110. When the material box 210 moves, multiple telescopic tubes 240 can be connected to the feeding hopper 150 in sequence.

[0068] The stirring mechanism 100 is mainly composed of a stirring drum 110 connected to a frame 310. As a core component of the compounding process, the stirring drum 110 provides a closed space for accommodating and stirring raw materials. A stirring shaft 120 is also rotatably connected in the stirring drum 110, and a stirring rod 130 is connected to the stirring shaft 120. When the motor 140 is started, the stirring shaft 120 is driven to rotate so that the stirring rod 130 stirs the materials in the stirring drum 110 and then compounds the water reducing agent. The motor 140 is a double-shaft motor, and the other output end is connected to the rotating shaft 350. The gear 360 is connected to the rotating shaft 350. During the feeding process, the speed of the motor 140 is relatively slow, and it is started and stopped in coordination with the moving position of the material taking box 210. During the mixing process, the two groups 330 extend to equal lengths, so that the gear 360 and any of the two groups of teeth are None of them is engaged, so the material taking process no longer continues. In order to ensure that the raw materials can smoothly enter the mixing drum 110, a feeding hopper 150 is connected to the top of the mixing drum 110. The design of the feeding hopper 150 allows the raw materials to be easily and quickly put into the mixing drum 110. During the movement of the material taking box 210, multiple telescopic tubes 240 can be connected to the feeding hopper 150 in sequence, thereby establishing a material transmission channel between the material taking box 210 and the mixing drum 110. When the material taking box 210 moves to a position close to the feeding hopper 150, the material taken from the material taking box 210 can smoothly enter the mixing drum 110 through the telescopic tube 240. When the telescopic tube 240 has not moved to the feeding hopper 150, the lower end of the telescopic tube 240 is close to the frame 310, so that the material will not be released prematurely.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of each embodiment of the utility model.

Claims

1. A water reducing agent compounding equipment, characterized in that ； It comprises a material taking mechanism (200), wherein the material taking mechanism (200) comprises a material taking box (210), and a material storage box (270) is fixedly arranged on the upper part of the material taking box (210); The material taking box (210) is provided with a plurality of material taking holes (220), and the material storage box (270) is provided with cavities that match the plurality of material taking holes (220). When the material taking box (210) is located directly below the material storage box (270), the cavities in the material storage box (270) can be connected to the corresponding material taking holes (220) in the material taking box (210); A capacity adjustment bucket (230) is axially slidably connected in the material taking hole (220), a telescopic tube (240) is connected to the lower part of the capacity adjustment bucket (230), and the upper space of the capacity adjustment bucket (230) in the material taking hole (220) and the inner space of the telescopic tube (240) together form a material storage chamber in the material taking hole (220); The capacity adjustment bucket (230) can adjust the volume of the material storage chamber when it moves axially up and down in the material taking hole (220).

2. The water reducing agent compounding equipment according to claim 1, characterized in that; The lower end of the material taking hole (220) is connected to a bracket (250), and the bottom end of the telescopic tube (240) is connected to the bracket (250); A first electric telescopic rod (260) is connected between the bracket (250) and the capacity adjustment bucket (230), and the first electric telescopic rod (260) can control the axial upward or downward movement of the capacity adjustment bucket (230) by telescoping.

3. The water reducing agent compounding equipment according to claim 2, characterized in that; A blocking plate (291) is provided between the material storage box (270) and the material extraction box (210), and two surfaces of the blocking plate (291) are respectively in contact with the lower end surface of the material storage box (270) and the upper end surface of the material extraction box (210); When the material taking box (210) is located directly below the material storage box (270), the blocking plate (291) is moved out from between the material taking box (210) and the material storage box (270), so that the plurality of cavities are connected to the corresponding plurality of material taking holes (220).

4. The water reducing agent compounding equipment according to claim 3, characterized in that ； The end of the blocking plate (291) is connected to a fixedly arranged second electric telescopic rod (290), and the extension and retraction of the second electric telescopic rod (290) can drive the blocking plate (291) to move in or out between the material taking box (210) and the material storage box (270).

5. The water reducing agent compounding equipment according to claim 4, characterized in that ； It also includes a driving mechanism (300), the driving mechanism (300) includes a frame (310), a rectangular frame (320) is fixedly connected to the material taking box (210), and the material taking box (210) and the rectangular frame (320) slide synchronously on the frame (310); A gear (360) is unidirectionally rotatably connected to a fixed axis in the rectangular frame (320), and two groups of teeth alternately meshing with the gear (360) are symmetrically arranged on the inner wall in the length direction of the rectangular frame (320); When the gear (360) is respectively meshed with the two groups of teeth, the material taking box (210) can be driven to move closer to or farther from the material storage box (270).

6. The water reducing agent compounding equipment according to claim 5, It is characterized by: Two third electric telescopic rods (330) are connected to the two surfaces of the rectangular frame (320) and the material taking box (210) that are farthest apart, and the output ends of the two sets of the third electric telescopic rods (330) are both in contact with the frame (310); When one of the two sets of third electric telescopic rods (330) is extended and the other set is synchronously shortened by the same length, the meshing state of the two sets of teeth in the rectangular frame (320) and the gear (360) can be switched.

7. The water reducing agent compounding equipment according to claim 6, characterized in that ； The output ends of the two sets of third electric telescopic rods (330) are both connected to balls (340).

8. The water reducing agent compounding equipment according to claim 7, characterized in that; Two optical proximity switches (370) are symmetrically arranged on the frame (310) along the sliding direction of the material taking box (210); When the material taking box (210) moves to any of the optical proximity switches (370), the two groups of third electric telescopic rods (330) in the extended state change to the shortened state, and vice versa.

9. The water reducing agent compounding equipment according to claim 8, characterized in that ； When the material taking box (210) moves to the optical proximity switch (370) close to the material storage box (270), it is simultaneously located directly below the material storage box (270), and the second electric telescopic rod (290) is extended so that the blocking plate (291) moves out from between the material storage box (270) and the material taking box (210).

10. The water reducing agent compounding equipment according to claim 9, characterized in that ； The invention also comprises a stirring mechanism (100), wherein the stirring mechanism (100) comprises a stirring drum (110) connected to the frame (310), and a feeding hopper (150) is connected to the stirring drum (110). When the material taking box (210) moves, the plurality of telescopic tubes (240) can be connected to the feeding hopper (150) in sequence.

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