Mixing device for concrete mixing and metering

Abstract

The utility model provides a metering and stirring device for concrete stirring. The discharging auger blade is configured to rotate to continuously discharge concrete in the mixing barrel outwards from the discharging opening when rotating in the first direction. The screw pitch of the discharging auger blade is gradually reduced in the direction from the mixing barrel to the discharging opening, so that concrete is continuously extruded in the process of being conveyed to the discharging opening under the action of the screw pitch of the auger blade. When the concrete is extruded by the auger blade, bubbles in the concrete are extruded out, so that the concrete is discharged in a continuous state when being discharged out of the discharge port. In other words, the number of turns or angles of rotation of the discharging auger blade is linearly and positively correlated with the material discharged from the discharging port, so that the concrete with the corresponding mass can be obtained according to the number of turns and angles of rotation of the discharging auger blade, the amount of the concrete can be accurately obtained, and waste caused by excessive discharging of the concrete is prevented.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete mixing and metering devices, and in particular to a concrete mixing and metering mixing device. Background Technology

[0002] Construction equipment mainly includes elevators, cranes, concrete mixers, and concrete spraying machines, etc. This application mentions a new type of concrete mixing device, which is mainly used for mixing and pouring concrete. Concrete is a building material made by mixing cement, sand, gravel, water and appropriate admixtures in a certain proportion. It is a common and widely used structural material used for building buildings, roads, bridges and mine construction, etc.

[0003] Concrete mixing plants typically use auger blades for discharge. However, existing auger blades for discharge all have the same pitch, resulting in a large amount of air trapped inside the concrete during transport. This air reduces the volume of the concrete within the discharge pipe, causing intermittent discharge. Consequently, it becomes difficult to accurately determine the amount of concrete discharged, potentially leading to over-discharge and concrete waste. Utility Model Content

[0004] In view of the above problems, this utility model is proposed to provide a concrete mixing metering and mixing device that overcomes or at least partially solves the above problems. It can solve the problem that existing mixing devices cannot quantitatively discharge concrete, achieve precise control of concrete discharge, and prevent excessive concrete discharge from causing waste.

[0005] Specifically, this utility model provides a concrete mixing and metering device, which includes a mixing tank, a discharge mechanism, and a control mechanism. The discharge mechanism includes a discharge pipe and discharge auger blades. The discharge pipe is connected to the mixing tank, and a discharge port is provided at the end of the discharge pipe away from the mixing tank. The discharge auger blades are rotatably disposed inside the discharge pipe, and the pitch of the discharge auger blades gradually decreases from the mixing tank to the discharge port. The control mechanism is used to rotate the discharge auger blades a corresponding number of turns or angle in a first rotation direction according to the required amount of concrete.

[0006] Optionally, the discharge mechanism further includes stirring auger blades; the stirring auger blades are located at the bottom of the mixing tank and are coaxially fixed to the discharge auger blades;

[0007] The control mechanism is also used to drive the discharge auger blades to rotate in a second rotation direction when the concrete is mixed and stirred in the mixing bucket; the first rotation direction is opposite to the second rotation direction.

[0008] Optionally, the control mechanism includes a control module and a control motor; the control motor is connected to the discharge auger blades; the control module is electrically connected to the control motor and is used to drive the discharge auger blades to rotate in a second rotation direction when the concrete is mixed and stirred in the mixing tank; the control module is also used to control the control motor to output the rotation angle or number of revolutions in the first rotation direction.

[0009] Optionally, the concrete mixing metering and mixing device also includes:

[0010] A stirring mechanism, comprising a rotating column and multiple stirring blades; the rotating column is rotatably disposed inside the mixing tank and coaxially disposed with the mixing tank; the stirring blades are fixedly connected to the rotating column;

[0011] A transmission mechanism includes a reciprocating disc, a first connecting rod, a second connecting rod, a piston cylinder, and a piston rod. The reciprocating disc is coaxially fixed to the upper end of the rotating column. One end of the first connecting rod is rotatably connected to an eccentric position of the reciprocating disc. The piston cylinder is cylindrical and fixedly positioned at a preset position. The piston rod is slidably disposed within the piston cylinder. The other end of the first connecting rod is hinged to the piston rod. One end of the second connecting rod is connected to the piston rod.

[0012] A drive mechanism includes a drive disk; the drive disk is positioned at a preset position and has a drive groove; the other end of the second connecting rod is slidably inserted into the drive groove, so that when the drive disk rotates, the drive groove drives the second connecting rod to reciprocate along the axial direction of the piston cylinder.

[0013] Optionally, the drive groove includes a plurality of first grooves and a plurality of second grooves; the plurality of first grooves and the plurality of second grooves are evenly distributed circumferentially along the axis of the drive disk; the first grooves and the second grooves are arranged sequentially and are connected; the first grooves and the second grooves are both arc-shaped grooves, the axis of the first groove is located on the inner side of the drive disk, and the axis of the second groove is located on the outer side of the drive disk.

[0014] Optionally, the plurality of stirring blades are respectively a plurality of first blades and a plurality of second blades; the first blades and the second blades have opposite spiral directions.

[0015] Optionally, the concrete mixing metering and mixing device also includes:

[0016] The support frame, on which the mixing tank, transmission mechanism and drive mechanism are all mounted; the drive mechanism also includes a drive motor, which is connected to the drive disc.

[0017] This utility model discloses a concrete mixing and metering device. It includes a mixing hopper, a discharge mechanism, and a control mechanism. The discharge mechanism comprises a discharge pipe and discharge auger blades. The discharge auger blades are configured to continuously discharge concrete from the mixing hopper through the discharge port when rotating in a first direction. The pitch of the discharge auger blades gradually decreases from the mixing hopper to the discharge port, thus continuously compressing the concrete as it is conveyed towards the discharge port. This compression by the auger blades causes air bubbles in the concrete to be expelled, ensuring continuous discharge. In other words, the number of rotations or the angle of the discharge auger blades are linearly positively correlated with the amount of material discharged from the discharge port. Therefore, the appropriate mass of concrete can be obtained based on the number of rotations and the angle of the discharge auger blades, accurately determining the quantity of concrete and preventing excessive waste.

[0018] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0019] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0020] Figure 1 This is a schematic structural diagram of a concrete mixing and metering device according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic top view of a concrete mixing and metering device according to an embodiment of the present invention;

[0022] Figure 3 yes Figure 2 A magnified view of a section at point AA;

[0023] Figure 4 yes Figure 2 A magnified view of a section at point B in the middle.

[0024] In the diagram: 100, mixing tank; 200, discharge mechanism; 210, discharge auger blades; 220, discharge pipe; 221, discharge port; 230, stirring auger blades; 300, control mechanism; 310, control module; 320, control motor; 400, stirring mechanism; 410, stirring blades; 420, rotating column; 500, transmission mechanism; 510, reciprocating disc; 520, first connecting rod; 530, second connecting rod; 540, piston cylinder; 550, piston column; 600, drive mechanism; 610, drive disc; 611, drive groove; 620, drive motor; 700, support frame. Detailed Implementation

[0025] The following reference Figures 1 to 4 This invention describes a concrete mixing and metering device according to an embodiment of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0026] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] Figure 1 This is a schematic structural diagram of a concrete mixing and metering device, such as... Figure 1 As shown, and with reference Figures 2 to 4 This utility model provides a concrete mixing and metering device, which includes a mixing tank 100, a discharge mechanism 200, and a control mechanism 300. The discharge mechanism 200 includes a discharge pipe 220 and a discharge auger blade 210. The discharge pipe 220 is connected to the mixing tank 100, and a discharge port 221 is provided at the end of the discharge pipe 220 away from the mixing tank 100. The discharge auger blade 210 is rotatably disposed within the discharge pipe 220, and the pitch of the discharge auger blade 210 gradually decreases from the mixing tank 100 to the discharge port 221. The control mechanism 300 is used to rotate the discharge auger blade 210 a corresponding number of revolutions or angle in a first rotation direction according to the required amount of concrete.

[0030] Specifically, the discharge auger blades 210 are configured such that, when rotating in the first direction, they continuously discharge concrete from the mixing tank 100 through the discharge port 221. Furthermore, the pitch of the discharge auger blades 210 gradually decreases from the mixing tank 100 to the discharge port 221, causing the concrete to be continuously compressed during its transport to the discharge port 221 under the action of the auger blade pitch. This compression by the auger blades causes air bubbles in the concrete to be expelled, ensuring a continuous discharge of concrete from the discharge port 221. In other words, the number of rotations or the angle of the discharge auger blades 210 are linearly positively correlated with the amount of material discharged from the discharge port 221. This allows for the accurate measurement of concrete quantity based on the number of rotations and the angle of the discharge auger blades 210, preventing excessive discharge and waste.

[0031] In some embodiments of this utility model, such as Figure 3 and Figure 4As shown, the discharge mechanism 200 also includes a mixing auger blade 230, which is located at the bottom of the mixing tank 100 and is coaxially fixed to the discharge auger blade 210. The control mechanism 300 is also used to drive the discharge auger blade 210 to rotate in a second rotation direction when the concrete is mixed and stirred in the mixing tank 100. The first rotation direction and the second rotation direction are opposite to each other.

[0032] Specifically, the mixing auger blades 230 are configured to agitate the concrete at the bottom of the mixing drum 100 during rotation, thereby improving the mixing efficiency of the concrete. Furthermore, the mixing auger blades 230 and the discharge auger blades 210 are integrally formed and rotate in the same direction. Therefore, when the mixing auger blades 230 rotate in the first direction, they convey the concrete into the discharge pipe; when they rotate in the second direction, they agitate the concrete at the bottom of the mixing drum 100 and prevent concrete from entering the discharge pipe and clogging it.

[0033] In some embodiments of this utility model, such as Figure 1 and Figure 4 As shown, the control mechanism 300 includes a control module 310 and a control motor 320. The control motor 320 is connected to the discharge auger blades 210, and the control module 310 is electrically connected to the control motor 320. During concrete mixing in the mixing tank 100, the control motor 320 drives the discharge auger blades 210 to rotate in a second rotation direction. The control module 310 is also used to control the rotation angle or number of revolutions of the control motor 320 in the first rotation direction.

[0034] Specifically, the control module 310 can accurately obtain the required amount of concrete by converting the required amount of concrete into the angle or number of rotations of the discharge auger blades 210 in the first rotation direction. Furthermore, when the mixing tank 100 is in a non-discharge state, the control module 310 causes the control motor 320 to drive the discharge auger blades 210 to maintain rotation in the second rotation direction.

[0035] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the concrete mixing and metering device also includes a mixing mechanism 400, a transmission mechanism 500, and a drive mechanism 600. The mixing mechanism 400 includes a rotating column 420 and multiple mixing blades 410. The rotating column 420 is rotatably disposed inside the mixing tank 100 and is coaxially disposed with the mixing tank 100. The mixing blades 410 are fixedly connected to the rotating column 420.

[0036] The transmission mechanism 500 includes a reciprocating disc 510, a first connecting rod 520, a second connecting rod 530, a piston cylinder 540, and a piston rod 550. The reciprocating disc 510 is coaxially fixed to the upper end of the rotating column 420; one end of the first connecting rod 520 is rotatably connected to the reciprocating disc 510 at an eccentric position; the piston cylinder 540 is cylindrical and fixedly positioned at a preset position. The piston rod 550 is slidably disposed in the piston cylinder 540; the other end of the first connecting rod 520 is hinged to the piston rod 550; and one end of the second connecting rod 530 is connected to the piston rod 550. The drive mechanism 600 includes a drive disc 610, which is positioned at a preset position and has a drive groove 611. The other end of the second connecting rod 530 is slidably inserted into the drive groove 611, so that when the drive disc 610 rotates, the drive groove 611 drives the second connecting rod 530 to reciprocate along the axial direction of the piston cylinder 540.

[0037] Specifically, the mixing tank 100 is vertically arranged, with an opening at the top for introducing materials into the mixing tank 100. Furthermore, the rotating column 420 drives the stirring blades 410 to rotate, thereby stirring the materials within the mixing tank 100. Further, the preset position of the piston cylinder 540 is at the same level as the reciprocating disk 510, and one end of the first connecting rod 520 is hinged to the eccentric position of the reciprocating disk 510 to form a crank-connecting rod structure, used to drive the rotating column 420 to rotate when the piston column 550 slides within the piston cylinder 540. Further, the piston column 550 reciprocates within the piston cylinder 540; due to the short distance of the piston cylinder 540, the piston column 550 drives the reciprocating disk 510 to rotate alternately in both forward and reverse directions via the first connecting rod 520.

[0038] Specifically, the drive groove 611 on the drive disc 610 can drive the piston rod 550 to move within the piston cylinder 540 via the second connecting rod 530, thereby driving the stirring blades 410 to rotate alternately in both directions, which can improve the stirring efficiency of the material and make the material fully integrated, so as to improve the stirring quality of the material.

[0039] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the drive groove 611 includes multiple first grooves and multiple second grooves. The multiple first grooves and multiple second grooves are evenly distributed circumferentially along the axis of the drive disk 610. The first grooves and second grooves are arranged sequentially and are connected. Both the first grooves and second grooves are arc-shaped grooves, with the axis of the first groove located inside the drive disk 610 and the axis of the second groove located outside the drive disk 610.

[0040] Specifically, the axes of the first groove and the second groove are located on the inner and outer sides of the drive disk 610, respectively, resulting in different bending directions for the first and second grooves. The first groove bends towards the axis of the drive disk 610, while the second groove bends towards the outer side of the drive disk 610. Furthermore, a slider connected to the other end of the second connecting rod 530 is provided within the drive groove 611. When the slider slides around the axis of the drive disk 610 within the first and second grooves, the distance between the slider and the axis of the drive disk 610 alternates between increasing and decreasing, thereby driving the second connecting rod 530 to slide. In other words, when the slider is stationary relative to the drive disk 610, and the drive disk 610 rotates, it drives the piston rod 550 to move within the piston cylinder 540 via the drive groove 611, the slider, and the second connecting rod 530.

[0041] In some embodiments of this utility model, such as Figure 3 As shown, the multiple stirring blades 410 are divided into multiple first blades and multiple second blades. The first blades and second blades have opposite spiral directions. Specifically, the opposite spiral directions of the first blades and second blades ensure that the first blades and second blades stir the material in different directions during the rotation of the rotating column 420, thereby further improving the stirring efficiency of the material.

[0042] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the concrete mixing and metering device also includes a support frame 700, on which the mixing tank 100, transmission mechanism 500, and drive mechanism 600 are all mounted. The drive mechanism 600 also includes a drive motor 620, which is connected to a drive disc 610. Specifically, the piston cylinder 540 and the drive disc 610 are positioned at preset locations via the support frame 700.

[0043] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A concrete mixing metering and mixing apparatus, characterized by, The concrete mixing and metering device comprises a mixing barrel, a discharging mechanism, and a control mechanism. The discharging mechanism comprises a discharging pipe and discharging auger blades. The discharging pipe is in communication with the mixing barrel. The end of the discharging pipe away from the mixing barrel is provided with a discharging opening. The discharging auger blades are rotationally arranged in the discharging pipe. The pitch of the discharging auger blades gradually decreases from the mixing barrel to the discharging opening. The control mechanism is used to rotate the discharging auger blades in a first rotational direction by a corresponding number of turns or angle according to the required amount of concrete.

2. The concrete mixing and metering device according to claim 1, wherein the discharging mechanism further comprises stirring auger blades. The stirring auger blades are arranged at the bottom of the mixing barrel and are coaxially fixed with the discharging auger blades.

4. The concrete batching plant of claim 1, wherein, The control mechanism is further used to rotate the discharging auger blades in a second rotational direction when the concrete in the mixing barrel is being mixed and stirred. The first rotational direction and the second rotational direction are opposite to each other.

3. The concrete mixing and metering device according to claim 1, wherein the control mechanism comprises a control module and a control motor. The control motor is connected with the discharging auger blades. The control module is electrically connected with the control motor. The control module is used to rotate the discharging auger blades in the second rotational direction when the concrete in the mixing barrel is being mixed and stirred. The control module is further used to control the control motor to output the rotational angle or number of turns in the first rotational direction. The device further comprises a stirring mechanism and a transmission mechanism. The stirring mechanism comprises a rotating column and a plurality of stirring blades. The rotating column is rotationally arranged in the mixing barrel and is coaxially arranged with the mixing barrel. The stirring blades are fixed with the rotating column. The transmission mechanism comprises a reciprocating disc, a first connecting rod, a second connecting rod, a piston cylinder, and a piston column. The reciprocating disc is coaxially fixed with the upper end of the rotating column. One end of the first connecting rod is rotationally connected with the eccentric position of the reciprocating disc. The piston cylinder is fixedly arranged at a predetermined position. The piston column is slidingly arranged in the piston cylinder. The other end of the first connecting rod is hingedly connected with the piston column. One end of the second connecting rod is connected with the piston column. The driving mechanism comprises a driving disc. The driving disc is arranged at a predetermined position. The driving disc is provided with a driving groove. The other end of the second connecting rod is slidingly inserted into the driving groove. When the driving disc rotates, the driving groove drives the second connecting rod to reciprocally move along the axis of the piston cylinder.

5. The concrete mixing and metering device according to claim 4, wherein the driving groove comprises a plurality of first grooves and a plurality of second grooves. The plurality of first grooves and the plurality of second grooves are circumferentially and uniformly arranged along the axis of the driving disc. The first grooves and the second grooves are sequentially arranged and are in communication. The first grooves and the second grooves are arc-shaped grooves. The axis of the first grooves is located on the inner side of the driving disc. The axis of the second grooves is located on the outer side of the driving disc. 6.The concrete mixing metering and mixing device according to claim 4, characterized in that The plurality of mixing blades are a plurality of first blades and a plurality of second blades respectively; the first blades and the second blades have opposite helical directions.

7. The concrete batching plant of claim 4, wherein, Further comprising: A support frame, the mixing barrel, the transmission mechanism and the driving mechanism are arranged on the support frame; the driving mechanism further comprises a driving motor, and the driving motor is connected with the driving disc.

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