A mortar mixing and stirring device

Abstract

This utility model relates to the field of silicon wafer manufacturing technology, and more particularly to a mortar mixing and stirring device. It solves the problem that in existing technologies, prolonged mixing during the operation of a mixer can easily cause the mortar to form a laminar flow layer, leading to a relatively static state. The internal mixing of the mixer also has limitations, with insufficient longitudinal mixing force. The mortar mixing and stirring device includes a drive motor output shaft connected to a rotating shaft via a coupling. A cylindrical shaft passes through the top of the rotating shaft, and an insertion hole is provided inside the cylindrical shaft. A mixing blade is fixedly connected to one side of a connecting frame, and a mixing plate is fixedly connected to the end of the mixing blade. The mixing plate is fixedly connected to the connecting frame via auxiliary mixing blades. This utility model breaks the laminar flow state formed by prolonged mixing, and drives the mortar to agitate from top to bottom through the mixing blades, thereby enhancing the longitudinal mixing effect of the mortar.

Description

Technical Field

[0001] This utility model relates to the field of silicon wafer manufacturing technology, and in particular to a mortar mixing and stirring device. Background Technology

[0002] Mortar mixing equipment plays a crucial role in the construction industry under the current technological background, widely used in the preparation of various types of mortar, significantly improving construction efficiency and mortar quality. It mainly consists of a mixing tank, a mixer, a motor, and a control system. With the development of the construction industry and the advancement of urbanization, the demand for mortar has increased dramatically. Although existing equipment has undergone continuous innovation, problems such as uneven mixing and low efficiency still exist, leading to the formation of a stratigraphic layer during prolonged mixing. Further optimization and innovation are urgently needed.

[0003] Chinese Patent Publication No. CN106000147A discloses a novel stirring device in the field of silicon wafer manufacturing technology, particularly a stirring chamber, comprising a stirring chamber, a convection section, and a pump. The stirring chamber has an inlet at its upper part, and the pump has a suction pipe connected to the suction inlet for drawing slurry from the stirring chamber. It also has a supply pipe connected to a spray gun for supplying a portion of the drawn slurry to the spray gun. The convection section includes two corresponding convection pipes, each with its inlet end connected to the pump and its outlet end extending into the stirring chamber. The outlet ends of the two convection pipes are positioned opposite each other. This stirring device utilizes the convection section to mix the slurry and create convection, achieving mixing of the slurry itself. It eliminates the need for a drive motor and stirring shaft, preventing slurry blockage in the stirring section, saving operating costs, and improving efficiency.

[0004] During the operation of a mixer, after prolonged continuous operation, the mortar being mixed gradually forms a stratigraphic layer due to its hydrodynamic properties. Specifically, under the impingement of the mixing blades, the surface fluid of the mortar flows laterally due to direct mechanical force. However, as the mixing time increases, the velocity gradient within the fluid gradually decreases, and the momentum exchange between the upper and lower fluid layers weakens, causing the mortar to exhibit a stratified flow state in the horizontal direction, thus displaying relatively static characteristics. Simultaneously, the mixing structure inside the mixer has design limitations; the existing arrangement and rotation of the mixing blades primarily act on the same horizontal plane, resulting in insufficient longitudinal disturbance capability of the mortar. Under these circumstances, the mixing process struggles to break down the fluid barriers between different horizontal layers, leading to a significant deficiency in longitudinal mixing force. Ultimately, this results in poor mixing of the mortar in the vertical direction, preventing the achievement of fully uniform mixing.

[0005] Therefore, we propose a mortar mixing and stirring device to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a mortar mixing device that solves the problem in the prior art where prolonged mixing during the operation of a mixer easily leads to the formation of a laminar layer in the mortar, causing the mortar to tend to be in a relatively static state. Furthermore, the internal mixing of the mixer has limitations, only able to operate on the same level, resulting in insufficient longitudinal mixing and inadequate mixing.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A mortar mixing device includes a base with a shell fixedly connected to the top. A mixing chamber is disposed within the inner cavity of the shell. A fixed cylinder is disposed at the center of the bottom end of the mixing chamber. A drive motor is disposed within the inner cavity of the fixed cylinder. The output shaft of the drive motor is connected to a rotating shaft via a coupling. The rotating shaft has an inverted "T" shaped structure on its axial surface. The top of the rotating shaft passes through the cylindrical shaft. An insertion hole is provided inside the cylindrical shaft. Four horizontal support frames are fixedly connected at equal intervals to the sides of the cylindrical shaft. A connecting frame is fixedly connected to the bottom end of the four horizontal support frames. A mixing blade is fixedly connected to one side of the connecting frame. A mixing plate is fixedly connected to the end of the mixing blade. The mixing plate is fixedly connected to the connecting frame via auxiliary mixing blades. A movable baffle is disposed on one side of the bottom end of the mixing chamber.

[0009] Preferably, the stirring blades consist of a short stirring blade and a long stirring blade. Both ends of the short stirring blade and the long stirring blade are fixedly connected to the connecting frame and the stirring plate, respectively. The stirring plate has an angle of 60°-80° with the bottom of the stirring chamber, and the side of the stirring plate with an angle greater than 90° with the horizontal plane is fixedly connected to the stirring blade.

[0010] Preferably, the top of the short stirring blade is deflected 30°-40° toward the fixed cylinder, and the top of the long stirring blade is deflected 10°-20° toward the fixed cylinder.

[0011] Preferably, a water inlet pipe is connected to the top of one side of the outer casing, and a discharge trough with an angle of 40°-50° to the horizontal plane is provided on one side of the base. A movable baffle is rotatably connected to the bottom of the outer casing and directly above the discharge trough by a hinge. The free end of the movable baffle is movably connected to the outer casing by a pin.

[0012] Preferably, each of the four corners of the base is fixedly equipped with a support seat, and the support seat is connected to a support leg by a threaded connection. The support leg passes through the support seat, and a gasket is fixedly connected to the bottom end of the support leg. A transverse rotation shaft passes through the top end of the support leg. Support shafts are fixedly connected to both sides of the base and are on the same side as the support seat. The support shafts are rotatably connected to a universal wheel through a bearing.

[0013] Preferably, the drive motor is fixedly connected to the motor support frame by bolts, and the motor support frame is fixedly connected to the inner cavity of the fixed cylinder, and a handle is fixedly connected to the bottom of the fixed cylinder.

[0014] This utility model has at least the following beneficial effects:

[0015] By utilizing the irregular turbulence generated by the inclined surface, the laminar flow of the mortar is broken, allowing the material to form more complex convective motions during mixing. This significantly reduces the number of times the mortar needs to be repeatedly mixed, ensuring mixing quality while significantly reducing the labor intensity of workers, thereby effectively improving labor utilization efficiency.

[0016] This utility model also has the following beneficial effects:

[0017] The dual-blade mixing structure with a tilting angle utilizes the dynamic mechanical effect generated during operation to promote a top-down circulating flow of mortar within the mixing chamber. This unique mixing method allows the mortar to be fully mixed in the longitudinal space, effectively breaking the stratification phenomenon commonly found in traditional mixing processes, where the mortar is thicker at the bottom and thinner at the top. This not only shortens mixing time but also reduces material waste, significantly improving the overall efficiency of the project while ensuring construction quality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the half-section structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the stirring device of this utility model;

[0022] Figure 4 This is a schematic diagram of the driving structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the stirring chamber structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the bottom structure of this utility model.

[0025] In the diagram: 1. Gasket; 2. Support base; 3. Support leg; 4. Caster wheel; 5. Support shaft; 6. Base; 7. Water inlet pipe; 8. Cylindrical shaft; 9. Horizontal support frame; 10. Outer shell; 11. Mixing chamber; 12. Motor support frame; 13. Drive motor; 14. Handle; 15. Auxiliary mixing blade; 16. Movable baffle; 17. Connecting frame; 18. Mixing plate; 19. Mixing wings; 1901. Short wing; 1902. Long wing; 20. Insertion hole; 21. Horizontal rotation shaft; 22. Fixed cylinder; 23. Rotation shaft; 24. Discharge chute; 25. Pin. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] Reference Figure 1-5 A mortar mixing device includes a base 6, characterized in that a shell 10 is fixedly connected to the top of the base 6, a mixing chamber 11 is provided in the inner cavity of the shell 10, materials are fed in through a notch at the top of the mixing chamber 11, a fixed cylinder 22 is provided at the center of the bottom of the mixing chamber 11, a drive motor 13 is provided in the inner cavity of the fixed cylinder 22, a handle 14 is installed at the bottom of the fixed cylinder 22 to facilitate opening the cover at the bottom to inspect the drive motor 13, the output shaft of the drive motor 13 is connected to a rotating shaft 23 through a coupling, the shaft surface of the rotating shaft 23 has an inverted "T" shaped structure, the top of the rotating shaft 23 passes through the cylindrical shaft 8, and the cylindrical shaft 8 has an opening inside. Insertion hole 20 facilitates engagement with rotating shaft 23. Four horizontal support frames 9 are fixedly connected at equal intervals on the side of cylindrical shaft 8. Connecting frame 17 is fixedly connected to the bottom of the four horizontal support frames 9. Mixing blades 19 are fixedly connected to one side of connecting frame 17. Mixing plate 18 is fixedly connected to the end of mixing blades 19 for horizontal mixing of mortar. Mixing plate 18 is fixedly connected to connecting frame 17 through auxiliary mixing blade 15. Auxiliary mixing blade 15 can not only assist mixing, but also provide a certain degree of support for mixing plate 18. Movable baffle 16 is provided on one side of the bottom of mixing chamber 11 to facilitate the flow of mixed mortar from mixing chamber 11.

[0028] Furthermore, the mixing blades 19 consist of a short mixing blade 1901 and a long mixing blade 1902. The long mixing blade 1902 and the short mixing blade 1901 are connected by a notch, allowing the mortar to be fully mixed during the mixing process. Both ends of the short mixing blade 1901 and the long mixing blade 1902 are fixedly connected to the connecting frame 17 and the mixing plate 18, respectively. The mixing plate 18 has an angle of 60°-80° with the bottom of the mixing chamber 11. The side of the mixing plate 18 with an angle greater than 90° with the horizontal plane is fixedly connected to the mixing blade 15. During long-term mixing, the tilt of the mixing plate 18 effectively disrupts the advection layer formed by the mortar, preventing the mortar from becoming relatively static during long-term mixing, thus ensuring that the mortar is fully mixed, avoiding repeated mixing, and improving work efficiency.

[0029] Furthermore, the top of the short mixing blade 1901 is deflected 30°-40° towards the fixed cylinder 22, and the top of the long mixing blade 1902 is deflected 10°-20° towards the fixed cylinder 22. By tilting the mixing blades 19, the mortar is circulated and turned from bottom to top during mixing using the inclined surface. This unique mixing method allows the mortar to be fully mixed in the longitudinal space, effectively breaking the common stratification phenomenon of thick at the bottom and thin at the top in traditional mixing, improving mixing efficiency and reducing the waste of raw materials.

[0030] Furthermore, a water inlet pipe 7 is connected to the top of one side of the outer shell 10 for easy operation by the operator. A discharge trough 24 with an angle of 40°-50° to the horizontal plane is provided on one side of the base 6. A movable baffle 16 is connected to the bottom of the outer shell 10 and directly above the discharge trough 24 by a hinge. The free end of the movable baffle 16 is movably connected to the outer shell 10 by a pin 25. When the mortar is fully mixed, the movable baffle 16 falls naturally under the action of gravity by opening the pin 25. The mortar flows into the discharge trough 24 through the gap formed by the movable baffle 16 and finally into the collector.

[0031] Furthermore, support seats 2 are fixedly installed at each of the four corners of the base 6. Support legs 3 are connected to the inside of the support seats 2 by threaded connection, and the support legs 3 pass through the support seats 2. A gasket 1 is fixedly connected to the bottom end of the support leg 3, and a transverse rotating shaft 23 passes through the top end of the support leg 3. When the stirring device reaches the working area, the support leg 3 is rotated out of the support seat 2 by rotating the rotating shaft 23. When the gasket 1 connected to the bottom end of the support leg 3 is lower than the universal wheel 4, the rotating shaft 23 is fixed. Support shafts 5 are fixedly connected to both sides of the base 6 and are on the same side as the support seats 2. The support shafts 5 are rotatably connected to the universal wheel 4 through bearings, which facilitates the movement of the stirring device.

[0032] Furthermore, the drive motor 13 is fixedly connected to the motor support frame 12 by bolts. The motor support frame 12 is fixedly connected to the inner cavity of the fixed cylinder 22. A handle 14 is fixedly connected to the bottom of the fixed cylinder 22. By pulling the handle 14, it is convenient to disassemble and inspect the drive motor 13.

[0033] In summary:

[0034] The operator pushes the mixing device using the casters 4. Once the mixing device reaches the designated area, the operator rotates the rotating shaft 23, causing the support leg 3 to rotate out of the support base 2. When the pad 1 connecting the bottom end of the support leg 3 is lower than the casters 4, the rotating shaft 23 is fixed to stabilize the mixing device. The water pipe is then connected to the inlet pipe 7, allowing water to enter the mixing chamber 11. After the operator feeds the material into the mixing chamber 11 through the opening above the mixing device, the operator starts the drive motor 13 in the fixed cylinder 22. The output shaft of machine 13 drives the rotating shaft 23 to rotate via a rotating shaft. The cylindrical shaft 8 is connected to the rotating shaft 23 via an insertion hole 20. The cylindrical shaft 8 is connected to the connecting frame 17 via a horizontal support frame 9. One side of the connecting frame 17 is fixedly connected to the stirring blades 19, which are fixedly connected to the stirring plate 18. The other side is fixedly connected to the auxiliary stirring blades 15. The rotation of the cylindrical shaft 8 drives the rotation of the stirring blades 19, the auxiliary stirring blades 15, and the stirring plate 18, further ensuring thorough mixing of the material and water in the mixing chamber 11. The mixing plate 18 forms an angle of 60°-80° with the horizontal plane, which can disrupt the laminar flow layer formed by long-term mortar mixing, break the relative stillness between mortar particles, improve mixing efficiency, and avoid repeated mixing. Since the tops of both the short mixing blade 1901 and the long mixing blade 1902 are deflected 30°-40° towards the fixed cylinder 22, the short mixing blade 1901 automatically tumbles the mortar from bottom to top during the mixing process, while the long mixing blade 1902 mixes the mortar from top to bottom. The gap between 1901 and the mixing blade 1902 allows the mortar to be fully mixed in the longitudinal layers, breaking the phenomenon of thicker mortar at the bottom and thinner mortar at the top in traditional mixing devices. When the mortar is fully mixed, the latch 25 is opened to separate the movable baffle 16 from the bottom of the outer shell 10, allowing the mortar to fall into the discharge trough 24 under the action of gravity through the gap opened by the movable baffle 16. Since the inclined surface of the discharge trough 24 forms an angle of 40°-50° with the horizontal plane, it is convenient for the mortar to flow from the discharge trough 24 into the collector.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mortar mixing and stirring device, comprising a base (6), characterized in that, The base (6) is fixedly connected to the top of the outer shell (10). A stirring chamber (11) is provided in the inner cavity of the outer shell (10). A fixed cylinder (22) is provided at the center of the bottom end of the stirring chamber (11). A drive motor (13) is provided in the inner cavity of the fixed cylinder (22). The output shaft of the drive motor (13) is connected to a rotating shaft (23) through a coupling. The axial surface of the rotating shaft (23) is inverted "T" shaped. The top of the rotating shaft (23) passes through the cylindrical shaft (8). The cylindrical shaft (8) is open inside. An insertion hole (20) is provided. Four horizontal support frames (9) are fixedly connected at equal intervals on the side of the cylindrical shaft (8). A connecting frame (17) is fixedly connected to the bottom of the four horizontal support frames (9). A stirring double wing (19) is fixedly connected to one side of the connecting frame (17). A stirring plate (18) is fixedly connected to the end of the stirring double wing (19). The stirring plate (18) is fixedly connected to the connecting frame (17) through an auxiliary stirring blade (15). A movable baffle (16) is provided on one side of the bottom of the stirring chamber (11).

2. The mortar mixing and stirring device according to claim 1, characterized in that, The stirring blades (19) consist of a short stirring blade (1901) and a long stirring blade (1902). Both ends of the short stirring blade (1901) and the long stirring blade (1902) are fixedly connected to the connecting frame (17) and the stirring plate (18), respectively. The angle between the stirring plate (18) and the bottom of the stirring chamber (11) is 60°-80°. The side of the stirring plate (18) with an angle greater than 90° with the horizontal plane is fixedly connected to the stirring blade (15).

3. The mortar mixing and stirring device according to claim 2, characterized in that, The top of the short stirring blade (1901) is deflected 30°-40° toward the fixed cylinder (22), and the top of the long stirring blade (1902) is deflected 10°-20° toward the fixed cylinder (22).

4. The mortar mixing and stirring device according to claim 1, characterized in that, A water inlet pipe (7) is connected to the top of one side of the outer shell (10). A discharge trough (24) with an angle of 40°-50° with the horizontal plane is provided on one side of the base (6). A movable baffle (16) is connected to the bottom of the outer shell (10) and directly above the discharge trough (24) by a hinge. The free end of the movable baffle (16) is movably connected to the outer shell (10) by a pin (25).

5. The mortar mixing and stirring device according to claim 4, characterized in that, The base (6) has a support seat (2) fixedly installed at each of its four corners. The support seat (2) is connected to a support leg (3) by a threaded connection. The support leg (3) passes through the support seat (2). A gasket (1) is fixedly connected to the bottom of the support leg (3). A transverse rotating shaft (23) passes through the top of the support leg (3). Support shafts (5) are fixedly connected to both sides of the base (6) and are on the same side as the support seat (2). The support shafts (5) are rotatably connected to the caster wheel (4) through a bearing.

6. The mortar mixing and stirring device according to claim 1, characterized in that, The drive motor (13) is fixedly connected to the motor support frame (12) by bolts. The motor support frame (12) is fixedly connected to the inner cavity of the fixed cylinder (22). The bottom of the fixed cylinder (22) is fixedly connected to a handle (14).

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