A concrete precast product processing slurry mixing apparatus

Abstract

This invention relates to the technical field of pipe fitting processing, and in particular to a concrete precast component processing slurry mixing device. The concrete precast component processing slurry mixing device provided by this invention includes a housing, a mixing mechanism, and a quantitative conveying mechanism. The housing has multiple storage chambers inside. The mixing mechanism includes a connecting frame, a cylinder, a telescopic assembly, and a mixing component. The connecting frame is connected to the housing, and the cylinder is rotatably mounted via the connecting frame. The cylinder has an axially oriented opening. The telescopic assembly includes a push plate located inside the cylinder and movable along the cylinder's axial direction. The push plate is used to completely push the mixture inside the cylinder out through the opening. The mixing component is mounted on the push plate and moves with it. The concrete precast component processing slurry mixing device provided by this invention significantly improves the efficiency and reliability of concrete precast component quality control testing, while eliminating the cleaning process required by traditional equipment, saving cleaning water and time, and reducing production costs.

Description

Technical Field

[0001] This invention relates to the technical field of pipe fitting processing, and in particular to a slurry mixing device for processing precast concrete components. Background Technology

[0002] In the production of precast concrete components, various cement slurries, mortars, or concrete slurries with different proportions need to be prepared for different process stages. Especially in the quality control and testing of precast components, it is often necessary to continuously prepare multiple test slurries with different water-cement ratios and different additive contents to verify the feasibility of the formula and the stability of product quality.

[0003] Current slurry preparation equipment mainly employs a traditional fixed mixing drum structure. These devices rely primarily on gravity flow or simple scraper pushing during discharge. However, cement-based slurries exhibit strong viscosity and thixotropy, especially those with added polymer modifiers or other cementitious materials. After mixing, these slurries tend to adhere to the inner wall of the mixing drum, forming a residual layer. This residual slurry mixes with the new slurry when preparing slurries with different proportions, causing the actual proportions to deviate from the designed proportions, affecting the accuracy of test results and the consistency of product quality.

[0004] To avoid the influence of residual slurry, operators typically need to thoroughly clean the mixing drum before each change of mix ratio. This not only significantly extends the testing cycle and reduces work efficiency but also consumes a large amount of cleaning water, increasing production costs. More importantly, even after cleaning, it is still difficult to guarantee that the inner wall of the mixing drum is completely clean, and trace amounts of residue can still affect the accuracy of subsequent tests.

[0005] In applications requiring extremely high precision in mix proportions, such as high-performance concrete formulation optimization and special mortar performance testing, slurry residue issues have become a key technical bottleneck restricting test efficiency and result reliability. Existing equipment cannot achieve efficient preparation of continuous multi-proportion slurries, severely impacting the technological development progress and quality control level of precast concrete production. Summary of the Invention

[0006] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a concrete precast component processing slurry mixing device, which significantly improves the efficiency and reliability of concrete precast component quality control tests. At the same time, it eliminates the cleaning process that must be performed by traditional equipment, saving cleaning water and time, and reducing production costs.

[0007] (II) Technical Solution To achieve the above objectives, this application provides a concrete precast component processing slurry mixing device, comprising: a housing with multiple storage chambers inside; a mixing mechanism including a connecting frame, a cylinder, a telescopic component, and a mixing assembly, wherein the connecting frame is connected to the housing, the cylinder is rotatably mounted via the connecting frame, the cylinder has an axially oriented opening, the telescopic component includes a push plate located inside the cylinder and movable along the cylinder's axial direction, the push plate being used to completely push out the mixture inside the cylinder through the opening, the mixing assembly being mounted on the push plate and moving with the push plate, for mixing the materials inside the cylinder; and a quantitative conveying mechanism, wherein the input end of the quantitative conveying mechanism is connected to multiple storage chambers respectively, and the output end is connected to the cylinder, for conveying the materials in each storage chamber to the cylinder according to a preset ratio.

[0008] In one possible implementation, a cover is hinged to the opening of the cylinder, and the cover is connected to the push plate via a transmission rod; wherein, when the push plate moves to the end of the cylinder away from the opening, the transmission rod drives the cover to seal the opening; when the push plate moves toward the end of the opening, the transmission rod pushes the cover to open.

[0009] In one possible implementation, the side of the cover facing the push plate is provided with a sliding groove, one end of the transmission rod is hinged to the push plate, and the other end of the transmission rod is provided with a sliding part, which is slidably disposed in the sliding groove.

[0010] In one possible implementation, the telescopic assembly further includes two first cylinders and a pusher frame. The two first cylinders are disposed opposite to each other outside the cylinder, and the output ends of the two first cylinders are respectively connected to the pusher frame. The pusher frame is connected to the push plate.

[0011] In one possible implementation, an electromagnetic actuator is mounted on a pusher plate; a magnetic stirrer is located inside the cylinder, and the magnetic stirrer is driven to rotate and stir by the magnetic field of the electromagnetic actuator.

[0012] In one possible implementation, the stirring mechanism further includes: a second motor, mounted on a connecting frame, with a driving gear at its output end; and a driven gear, mounted on the outer surface of the cylinder, coaxially mounted with the rotation shaft of the cylinder, and meshing with the driving gear.

[0013] In one possible implementation, the box is provided with multiple annular baffles arranged concentrically, which divide the box into multiple storage chambers.

[0014] In one possible implementation, a stirring unit is also included, comprising: a third motor mounted on the housing, the output end of the third motor extending into the housing; a cross-shaped connecting plate connected to the output end of the third motor, the cross-shaped connecting plate being located above multiple storage chambers; and multiple spiral stirring blades, each located within a multiple storage chamber, the multiple spiral stirring blades being connected to the cross-shaped connecting plate.

[0015] In one possible implementation, the spiral mixing blade includes: multiple spiral plates spaced apart circumferentially along the housing, the tops of the multiple spiral plates being connected to cross connecting plates respectively; and multiple connecting ribs spaced apart circumferentially along the housing, the tops of the connecting ribs being connected to cross connecting plates, and the connecting ribs being connected to at least one spiral plate.

[0016] In one possible implementation, the inner and / or outer surfaces of the spiral plate abut against the inner wall of the storage cavity, and multiple through holes are provided on the spiral plate to allow material to pass through when the spiral plate rotates.

[0017] In one possible implementation, an annular scraper is provided on the outer peripheral surface of the pusher plate. The annular scraper closely cooperates with the inner surface of the cylinder and is used to scrape off residual material from the inner wall of the cylinder during the movement of the pusher plate.

[0018] (III) Beneficial Effects Compared with existing technologies, this invention provides a concrete precast component processing slurry mixing device with the following advantages: The device's cylinder, via a connecting frame, achieves a flipping function, maintaining a horizontal position with the opening facing upwards during the preparation stage. This facilitates the quantitative conveying mechanism to accurately feed materials from each storage chamber into the cylinder according to a preset ratio for mixing. When the slurry preparation is complete and discharge is required, the cylinder, supported by the connecting frame, flips to a position with the opening facing downwards or tilted downwards, changing the discharge direction and creating gravity-assisted conditions for complete emptying. At this time, the pusher plate in the telescopic assembly moves axially along the cylinder from the end furthest from the opening towards the opening end. The pusher plate's cross-sectional dimensions match the inner diameter of the cylinder, allowing it to move closely against the inner wall of the cylinder, completely pushing the mixed slurry out of the cylinder. Simultaneously, the mixing component continues to agitate the material during the pushing process, further assisting in the material's ejection. Even polymer-modified slurries with strong adhesion or high-viscosity gelling slurries can be thoroughly cleaned. By eliminating slurry residue, subsequent preparation of slurries with different proportions will not be affected by previous residues, ensuring the proportioning accuracy of each test. It is particularly suitable for test scenarios that require continuous preparation of multiple proportions for comparative analysis, significantly improving the efficiency and reliability of concrete precast component quality control tests. At the same time, it eliminates the cleaning process that must be performed on traditional equipment, saving cleaning water and time, and reducing production costs. Attached Figure Description

[0019] Figure 1 This diagram illustrates the structure of a concrete precast component processing slurry mixing device according to an embodiment of this application. Figure 2 This illustration shows a structural diagram of a cylinder, a telescopic assembly, and a stirring assembly provided in an embodiment of this application. Figure 3This is a side view structural diagram of a cylinder, telescopic assembly, and stirring assembly provided in an embodiment of this application; Figure 4 This diagram illustrates the structure of a spiral stirring blade provided in an embodiment of this application.

[0020] Marked in the attached diagram: 1. Box body; 11. Storage chamber; 12. Annular partition; 2. Stirring mechanism; 21. Connecting frame; 22. Cylinder; 221. Opening; 222. Cover; 2221. Sliding groove; 23. Telescopic assembly; 231. Push plate; 232. First cylinder; 233. Pushing frame; 234. Annular scraper; 24. Stirring assembly; 241. Electromagnetic actuator; 242. Magnetic stir bar; 25. Transmission rod; 26. Second motor; 27. Drive gear; 28. Driven gear; 3. Quantitative conveying mechanism; 4. Stirring unit; 41. Third motor; 42. Cross connecting plate; 43. Spiral stirring blade; 431. Spiral plate; 4311. Perforation; 432. Connecting rib. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1 to 4 This application provides a concrete precast component processing slurry mixing device, including: a box body 1, the box body 1 having multiple storage chambers 11 inside; a mixing mechanism 2, including a connecting frame 21, a cylinder 22, a telescopic component 23, and a mixing component 24, the connecting frame 21 being connected to the box body 1, the cylinder 22 being rotatably mounted via the connecting frame 21, the cylinder 22 having an axially arranged opening 221, the telescopic component 23 including a push plate 231 located inside the cylinder 22 and movable along the axial direction of the cylinder 22, the push plate 231 being used to completely push out the mixed material inside the cylinder 22 through the opening 221, the mixing component 24 being mounted on the push plate 231 and moving with the push plate 231, for mixing the material inside the cylinder 22; and a quantitative conveying mechanism 3, the input end of the quantitative conveying mechanism 3 being connected to multiple storage chambers 11 respectively, and the output end being connected to the cylinder 22, for conveying the material in each storage chamber 11 to the cylinder 22 according to a preset ratio.

[0023] In this invention, the cylinder 22 achieves a flipping function through the connecting frame 21, maintaining a horizontal state with the opening 221 facing upward during the preparation stage. This facilitates the quantitative conveying mechanism 3 to accurately feed the materials from each storage chamber 11 into the cylinder 22 for mixing according to a preset ratio. When the slurry preparation is complete and discharge is required, the cylinder 22, supported by the connecting frame 21, flips to a position where the opening 221 faces downward or tilts downward, changing the discharge direction and creating gravity-assisted conditions for complete emptying. At this time, the push plate 231 in the telescopic component 23 moves axially along the cylinder 22 from the end away from the opening 221 towards the end with the opening 221. The cross-sectional dimensions of the push plate 231 match the inner diameter of the cylinder 22, allowing it to move close to the inner wall of the cylinder 22, completely pushing the mixed slurry out of the cylinder 22. Simultaneously, the stirring component 24 continues to agitate the material during the pushing process, further assisting in the material's ejection. Even polymer-modified slurries with strong adhesion or high-viscosity gelling slurries can be thoroughly cleaned. By eliminating slurry residue, subsequent preparation of slurries with different proportions will not be affected by previous residues, ensuring the proportioning accuracy of each test. It is particularly suitable for test scenarios that require continuous preparation of multiple proportions for comparative analysis, significantly improving the efficiency and reliability of concrete precast component quality control tests. At the same time, it eliminates the cleaning process that must be performed on traditional equipment, saving cleaning water and time, and reducing production costs.

[0024] Specifically, the connecting frame 21 provides a tilting support structure for the cylinder 22, allowing the cylinder 22 to switch between a horizontal preparation position and an inclined discharge position. The push plate 231 in the telescopic assembly 23 has dimensions that match the inner diameter of the cylinder 22, enabling it to move closely against the inner wall of the cylinder 22 to ensure thorough material pushing. The stirring assembly 24 is installed together with the push plate 231, mixing the materials during the preparation process and continuing to stir the materials during the discharge process to assist in pushing them out.

[0025] In one specific embodiment, when preparing cement mortar test samples, it is necessary to continuously prepare multiple slurries with different water-cement ratios for comparative testing. The equipment of the present invention first prepares a slurry with a water-cement ratio of 0.4. During discharge, the cylinder 22 is flipped, and the pusher plate 231 completely pushes out the slurry. Subsequently, a slurry with a water-cement ratio of 0.5 is directly prepared without cleaning the cylinder 22, thus avoiding the influence of residual 0.4 water-cement ratio slurry on the new mix and ensuring the accuracy of the test data.

[0026] In related technologies, traditional slurry mixing equipment typically employs a fixed cylinder 22 structure, relying on gravity or simple scrapers for discharge. This makes it difficult to completely remove slurry adhering to the inner wall of the cylinder 22, requiring thorough cleaning of the mixing cylinder before each change of mix proportions, which affects work efficiency and consumes a large amount of cleaning water. In this embodiment of the invention, the tiltable cylinder 22, combined with the pushing action of the push plate 231, can completely empty the slurry inside the cylinder 22, eliminating the mutual influence between mix proportions and eliminating the cleaning process, thus significantly improving the efficiency of continuous testing.

[0027] In some embodiments, a cover 222 is hinged at the opening 221 of the cylinder 22, and the cover 222 is connected to the push plate 231 via a transmission rod 25; wherein, when the push plate 231 moves to the end of the cylinder 22 away from the opening 221, the transmission rod 25 drives the cover 222 to seal the opening 221; when the push plate 231 moves toward the end of the opening 221, the transmission rod 25 pushes the cover 222 to open.

[0028] In this invention, by setting a baffle 222 that is linked to the push plate 231, the automatic closing and opening control of the opening 221 of the cylinder 22 is realized. When the push plate 231 is located at the end of the cylinder 22 away from the opening 221, the transmission rod 25 drives the baffle 222 to seal the opening 221, preventing material leakage from the opening 221 during the preparation process; when the push plate 231 moves towards the opening 221 to discharge material, the transmission rod 25 pushes the baffle 222 to open, providing a channel for material discharge.

[0029] Specifically, the cover 222 is hinged to the opening 221 of the cylinder 22, allowing for flexible opening and closing. One end of the transmission rod 25 is connected to the push plate 231, and the other end is connected to the cover 222, establishing a mechanical linkage between the position of the push plate 231 and the state of the cover 222. This linkage mechanism ensures that the opening and closing of the cover 222 is synchronized with the working position of the push plate 231. When preparing highly fluid cement slurry, if the opening 221 of the cylinder 22 is not effectively sealed, the slurry may splash out from the opening 221 during mixing due to centrifugal force, causing material loss and environmental pollution. The cover 222 of this invention automatically closes the opening 221 during the mixing stage, ensuring the airtightness of the mixing environment and preventing material leakage. It automates the closing of the opening 221; the operator only needs to control the movement of the push plate 231, and the cover 222 automatically completes the corresponding opening and closing action, improving the intelligence level and ease of operation of the equipment.

[0030] In some embodiments, the cover 222 is provided with a sliding groove 2221 on the side facing the push plate 231, one end of the transmission rod 25 is hinged to the push plate 231, and the other end of the transmission rod 25 is provided with a sliding part, which is slidably disposed in the sliding groove 2221.

[0031] In this invention, a sliding groove 2221 is provided on the cover 222, and a sliding part is provided at the end of the transmission rod 25, thereby achieving a sliding connection between the transmission rod 25 and the cover 222. The sliding movement of the sliding part within the sliding groove 2221 allows the transmission rod 25 to smoothly transmit force to the cover 222 during the axial movement of the push plate 231, ensuring the reliability of the opening and closing action of the cover 222.

[0032] Specifically, one end of the transmission rod 25 is hinged to the push plate 231, establishing a connection that moves with the push plate 231. The sliding part at the other end of the transmission rod 25 is located in the sliding groove 2221 of the cover 222. When the push plate 231 moves axially, the transmission rod 25 moves accordingly, and the sliding part slides in the sliding groove 2221, converting the linear motion of the push plate 231 into the rotational opening and closing motion of the cover 222. When the push plate 231 moves from one end of the cylinder 22 to the other, if the transmission rod 25 and the cover 222 are rigidly connected, the mismatch between the linear motion of the push plate 231 and the rotational motion of the cover 222 will cause the transmission rod 25 to bend or jam. The sliding connection structure of the present invention allows the transmission rod 25 to adapt to changes in the motion trajectory during force transmission, ensuring smooth transmission. The sliding connection between the sliding groove 2221 and the sliding part provides a motion compensation function, eliminating the trajectory interference between the linear motion of the push plate 231 and the rotational motion of the cover 222, and ensuring the long-term reliable operation of the transmission system.

[0033] In some embodiments, the telescopic assembly 23 further includes two first cylinders 232 and a pusher frame 233. The two first cylinders 232 are disposed opposite to each other outside the cylinder 22. The output ends of the two first cylinders 232 are respectively connected to the pusher frame 233, and the pusher frame 233 is connected to the pusher plate 231.

[0034] In this invention, two opposing first cylinders 232 drive the pusher frame 233, providing a strong and uniform axial thrust to the pusher plate 231. The output ends of the two first cylinders 232 are respectively connected to the pusher frame 233, which in turn is connected to the pusher plate 231, forming a dual-cylinder driven thrust transmission mechanism, ensuring that the pusher plate 231 can overcome the resistance of the viscous slurry and complete the pushing action.

[0035] Specifically, the two first cylinders 232 are positioned opposite each other on the outside of the cylinder 22, avoiding interference with the internal structure of the cylinder 22. The pusher frame 233, acting as a force-gathering and transmission component, combines the thrust of the two first cylinders 232 and applies it to the pusher plate 231, resulting in a more uniform thrust distribution. The cylinder-driven method features fast response, large thrust, and precise control. When preparing concrete slurry containing coarse aggregate, the slurry has high viscosity and contains particulate matter, making it difficult for a single drive source to provide sufficient thrust to completely push the slurry out. This invention employs a dual-cylinder drive, which can provide greater thrust. Simultaneously, the symmetrical arrangement of the two cylinders prevents the pusher plate 231 from tilting or jamming during the pushing process. The two first cylinders 232, working synergistically through the pusher frame 233, not only provide greater thrust but also ensure a uniform distribution of thrust, effectively preventing tilting and jamming of the pusher plate 231 and improving the reliability of the pushing process.

[0036] In some embodiments, an electromagnetic driver 241 is disposed on a pusher plate 231; a magnetic stirrer 242 is located inside a cylinder 22, and the magnetic stirrer 242 is driven to rotate and stir by the magnetic field of the electromagnetic driver 241.

[0037] In this invention, a non-contact stirring method using an electromagnetic actuator 241 in conjunction with a magnetic stirrer 242 avoids the structural design of the stirring shaft penetrating the push plate 231 in traditional mechanical stirring. The magnetic field generated by the electromagnetic actuator 241 drives the magnetic stirrer 242 to rotate, thereby achieving stirring and mixing of the materials inside the cylinder 22, while eliminating the risk of shaft seal leakage.

[0038] Specifically, the electromagnetic actuator 241 is mounted on the pusher plate 231 and moves with it, providing a rotating magnetic field for the magnetic stirrer 242 during the preparation stage. The magnetic stirrer 242 is located inside the cylinder 22, has a smooth surface without protruding structures, and rotates under electromagnetic drive. When the pusher plate 231 moves towards the opening 221 to discharge material, the magnetic stirrer 242 is pushed out along with the material. When preparing cement-based grout, the material has strong adhesiveness. Traditional blade mixers tend to have a large amount of material adhering during mixing, affecting the mixing effect and causing residue upon discharge. The magnetic stirrer 242 of this invention has a smooth surface, resulting in very little adhered material, and, in conjunction with the pushing action of the pusher plate 231, enables more thorough emptying.

[0039] The electromagnetic stirring method uses non-contact magnetic transmission, which avoids sealing problems and reduces material adhesion. The magnetic stir bar 242 can be pushed out with the push plate 231 for cleaning, further ensuring the proportioning accuracy and the cleanliness of the equipment.

[0040] In some embodiments, the stirring mechanism 2 further includes: a second motor 26, which is disposed on the connecting frame 21, and the output end of the second motor 26 is provided with a driving gear 27; a driven gear 28, which is disposed on the outer surface of the cylinder 22, and the driven gear 28 is coaxially disposed with the rotation shaft of the cylinder 22, and the driven gear 28 meshes with the driving gear 27.

[0041] In this invention, a second motor 26 drives a driving gear 27, which meshes with a driven gear 28 on the cylinder 22, thus achieving the electric tilting function of the cylinder 22. The second motor 26 provides rotational torque, and through gear transmission, it switches the cylinder 22 from a horizontal preparation position to an inclined discharge position, replacing manual tilting operations. The gear-driven electric tilting mechanism not only reduces operational intensity but also allows for precise control of the tilting angle and speed. The self-locking characteristic of the gear transmission ensures reliable fixation of the cylinder 22 at any angle, improving the automation level and operational safety of the equipment.

[0042] Specifically, the second motor 26 is mounted on the connecting frame 21, providing a power source for the gear transmission system. The driving gear 27 is connected to the output end of the second motor 26, and the driven gear 28 is coaxially arranged with the rotation shaft of the cylinder 22. The two gears mesh to form a transmission pair. The gear transmission has the characteristics of stable transmission ratio and strong load-bearing capacity, and can convert the high-speed, low-torque output of the second motor 26 into a low-speed, high-torque output. When the cylinder 22 is filled with a large amount of slurry, the total weight of the cylinder 22 is large. Manual turning is not only labor-intensive, but also difficult to control the turning angle and speed, posing a safety hazard. The electric turning mechanism of the present invention can smoothly control the turning process of the cylinder 22, ensuring that it turns to the preset angle and locks reliably.

[0043] In some embodiments, a plurality of annular partitions 12 are provided inside the housing 1. The plurality of annular partitions 12 are arranged concentrically and divide the housing 1 into a plurality of storage chambers 11.

[0044] In this invention, by setting multiple concentrically arranged annular partitions 12 inside the housing 1, the interior of the housing 1 is divided into multiple independent storage chambers 11, realizing the classified storage of different slurry components. Each storage chamber 11 is independent of each other, avoiding cross-contamination between different components and providing a basic condition for accurate proportioning.

[0045] Specifically, multiple annular partitions 12 are designed in concentric circles, forming annular storage spaces. This layout achieves the setting of multiple storage chambers 11 within the limited space of the box 1, improving space utilization efficiency. Each storage chamber 11 corresponds to storing one slurry component, such as cement, sand, admixtures, etc. When preparing slurry for C30 concrete testing, it is necessary to mix multiple components such as cement, fine sand, fly ash, and water-reducing agents in a specific ratio. Each component is stored separately in the storage chambers 11: cement is stored in the inner storage chamber 11, fine sand in the middle storage chamber 11, and admixtures in the outer storage chamber 11, avoiding mutual interference between components.

[0046] In related technologies, the storage of multi-component materials typically employs separate silos, which occupy a large area and have significant distances between silos, increasing the conveying distance and system complexity. In contrast, the concentric ring-shaped storage chambers 11 in this embodiment of the invention are compact, with each storage chamber 11 having a substantially equal distance from the mixing cylinder 22. This simplifies the design of the quantitative conveying mechanism 3, reduces the equipment footprint, and improves space utilization efficiency.

[0047] In some embodiments, the device further includes a stirring unit 4, which includes: a third motor 41 disposed on the housing 1, with the output end of the third motor 41 extending into the housing 1; a cross connecting plate 42 connected to the output end of the third motor 41, the cross connecting plate 42 being located above the plurality of storage chambers 11; and a plurality of spiral stirring blades 43 respectively located in the plurality of storage chambers 11, the plurality of spiral stirring blades 43 being respectively connected to the cross connecting plate 42.

[0048] In this invention, a third motor 41 drives a cross-shaped connecting plate 42, which in turn drives the spiral stirring blades 43 located in each storage chamber 11 to rotate synchronously, thereby achieving pre-stirring of the materials in each storage chamber 11. This pre-stirring mechanism prevents the materials from settling and stratifying during storage, maintaining the uniformity of each component.

[0049] Specifically, the third motor 41 is positioned above the housing 1, with its output end extending into the housing 1 and connecting to the cross-shaped connecting plate 42. The cross-shaped connecting plate 42 is located above multiple storage chambers 11, transmitting power to the spiral stirring blades 43 within each storage chamber 11 via radial connecting arms. Driven by the cross-shaped connecting plate 42, the multiple spiral stirring blades 43 rotate synchronously, slowly agitating the materials within the storage chambers 11. When storing cement-based composite materials, fine powders such as silica fume and mineral powder tend to precipitate and clump during settling, affecting the accuracy of subsequent quantitative conveying. The pre-stirring mechanism of this invention maintains a loose state of the materials within the storage chambers 11 through the slow rotation of the spiral stirring blades 43, ensuring the flowability and consistency of the materials during quantitative conveying.

[0050] Material storage devices are typically static storage devices, where materials are prone to settling and clumping after prolonged storage, leading to decreased accuracy in subsequent batching and requiring manual intervention for pretreatment. In this embodiment of the invention, the spiral stirring blades 43 within each storage chamber 11 continuously perform pre-stirring, effectively preventing material settling and clumping, ensuring the fluidity and uniformity of the material within the storage chamber 11, and creating favorable conditions for precise quantitative conveying.

[0051] In some embodiments, the spiral stirring blade 43 includes: a plurality of spiral plates 431, which are spaced apart along the circumference of the housing 1, and the tops of the plurality of spiral plates 431 are respectively connected to the cross connecting plate 42; a plurality of connecting ribs 432, which are spaced apart along the circumference of the housing 1, and the tops of the connecting ribs 432 are connected to the cross connecting plate 42, and the connecting ribs 432 are connected to at least one spiral plate 431.

[0052] In this invention, by designing the spiral stirring blade 43 as a combination of a spiral plate 431 and a connecting rib 432, a balance between stirring function and structural strength is achieved. The spiral plate 431 provides the main stirring and propulsion action, while the connecting rib 432 enhances the rigidity of the overall structure and provides auxiliary stirring function.

[0053] Specifically, multiple spiral plates 431 are spaced apart along the circumference of the housing 1 to form a spiral propulsion structure, with their tops connected to the cross-shaped connecting plate 42 to obtain driving force. Multiple connecting ribs 432 are also spaced apart along the circumference, with their tops connected to the cross-shaped connecting plate 42 and their bottoms connected to the spiral plates 431, forming a supporting frame. The connecting ribs 432 give the spiral stirring blade 43 better overall rigidity. When the storage chamber 11 stores materials with high density, such as barite powder, the material exerts significant resistance and load on the spiral stirring blade 43. A simple spiral plate 431 structure may deform or fail due to fatigue during long-term use. The connecting ribs 432 structure of this invention effectively distributes the load of the spiral plates 431, improving the load-bearing capacity and service life of the spiral stirring blade 43.

[0054] The combined design of the spiral plate 431 and the connecting rib 432 forms a truss structure, which significantly improves the structural strength while ensuring the mixing effect. The connecting rib 432 also plays an auxiliary role in mixing, making the material more uniformly mixed.

[0055] In some embodiments, the inner and / or outer sides of the spiral plate 431 abut against the inner wall of the storage cavity 11, and a plurality of through holes 4311 are provided through the spiral plate 431 for material to pass through when the spiral plate 431 rotates.

[0056] In this invention, by having the inner and outer surfaces of the spiral plate 431 abut against the inner wall of the storage cavity 11, dead zones in the mixing are eliminated, ensuring that the material in each area of ​​the storage cavity 11 is effectively mixed. Multiple perforations 4311 on the spiral plate 431 allow the material to flow radially during the rotation of the spiral plate 431, enhancing the mixing effect. The abutment between the spiral plate 431 and the inner wall of the storage cavity 11 eliminates dead zones in the mixing, and the perforation design 4311 further enhances the radial mixing of the material, achieving omnidirectional and uniform mixing of the material within the storage cavity 11.

[0057] Specifically, the inner side of the spiral plate 431 abuts against the inner ring wall of the storage cavity 11, and the outer side abuts against the outer ring wall of the storage cavity 11, forming a closely fitted stirring gap. Perforations 4311 penetrate the spiral plate 431, providing a radial channel for the material as the spiral plate 431 rotates. The material can flow circumferentially along the spiral plate 431 and radially through the perforations 4311, forming a composite flow pattern. When storing sand with a wide particle size distribution, fine particles tend to accumulate at the edges of the storage cavity 11, while coarse particles tend to deposit in the center, resulting in particle segregation. The abutment design between the spiral plate 431 and the wall of the storage cavity 11 ensures the agitation of material in the edge area, while the perforations 4311 promote the exchange of material at different radial positions, effectively preventing particle segregation.

[0058] In some embodiments, an annular scraper 234 is provided on the outer peripheral surface of the pusher plate 231. The annular scraper 234 closely cooperates with the inner surface of the cylinder 22 and is used to scrape off residual material on the inner wall of the cylinder 22 during the movement of the pusher plate 231.

[0059] In this invention, an annular scraper 234 is provided on the outer periphery of the pusher plate 231, forming a close fit with the inner surface of the cylinder 22. During the axial movement of the pusher plate 231, material that may adhere to the inner wall of the cylinder 22 is effectively scraped away. The annular scraper 234 ensures the thoroughness of the material pushing process, achieving a truly zero-residue effect. The integrated design of the annular scraper 234 and the pusher plate 231 enables simultaneous material pushing and wall cleaning, removing adhering substances from the wall surface while pushing out the main material, achieving a thorough emptying effect and providing a reliable guarantee for the accuracy of subsequent proportioning.

[0060] Specifically, the annular scraper 234 is continuously arranged along the outer periphery of the pusher plate 231, forming a complete scraping edge. The scraper maintains slight contact with the inner surface of the cylinder 22, scraping and cleaning the inner wall of the cylinder 22 as the pusher plate 231 moves. The scraper material has a certain degree of elasticity, effectively removing adhering materials without damaging the inner surface of the cylinder 22. When preparing polymer-modified cement slurry, the polymer component gives the slurry strong adhesion, easily forming a thin layer adhering to the inner wall of the cylinder 22. Conventional pushers 231 cannot completely remove these adhering materials, affecting the accuracy of the next batching. The annular scraper 234 of this invention continuously scrapes away the adhering material on the inner wall during the advancement of the pusher plate 231, ensuring the cleanliness of the inner wall of the cylinder 22.

[0061] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0062] It should be readily understood that “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0063] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0064] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0065] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A slurry mixing device for precast concrete components, characterized in that, include: Box (1), the inside of which is provided with multiple storage chambers (11); The stirring mechanism (2) includes a connecting frame (21), a cylinder (22), a telescopic assembly (23), and a stirring assembly (24). The connecting frame (21) is connected to the housing (1). The cylinder (22) is rotatably arranged through the connecting frame (21). The cylinder (22) has an axially arranged opening (221). The telescopic assembly (23) includes a push plate (231) located inside the cylinder (22) and movable along the axial direction of the cylinder (22). The push plate (231) is used to completely push out the mixture inside the cylinder (22) through the opening (221). The stirring assembly (24) is arranged on the push plate (231) and moves with the push plate (231) to mix the materials inside the cylinder (22). The quantitative conveying mechanism (3) has an input end connected to multiple storage chambers (11) and an output end connected to the cylinder (22), and is used to convey the material in each storage chamber (11) to the cylinder (22) according to a preset ratio.

2. The concrete precast component processing slurry mixing equipment according to claim 1, characterized in that, A cover (222) is hinged to the opening (221) of the cylinder (22), and the cover (222) is connected to the push plate (231) through a transmission rod (25). When the push plate (231) moves to the end of the cylinder (22) away from the opening (221), the transmission rod (25) drives the cover (222) to seal the opening (221); when the push plate (231) moves toward the end of the opening (221), the transmission rod (25) pushes the cover (222) to open.

3. The concrete precast component processing slurry mixing equipment according to claim 2, characterized in that, The cover (222) is provided with a sliding groove (2221) on the side facing the push plate (231). One end of the transmission rod (25) is hinged to the push plate (231), and the other end of the transmission rod (25) is provided with a sliding part, which is slidably disposed in the sliding groove (2221).

4. The concrete precast component processing slurry mixing equipment according to claim 1, characterized in that, The telescopic assembly (23) also includes two first cylinders (232) and a pusher frame (233). The two first cylinders (232) are disposed opposite to each other outside the cylinder (22). The output ends of the two first cylinders (232) are respectively connected to the pusher frame (233), and the pusher frame (233) is connected to the push plate (231).

5. The concrete precast component processing slurry mixing equipment according to claim 1, characterized in that, The stirring assembly (24) includes: An electromagnetic actuator (241) is mounted on the push plate (231); A magnetic stir bar (242) is located inside the cylinder (22), and the magnetic stir bar (242) is driven to rotate and stir by the magnetic field of the electromagnetic driver (241).

6. The concrete precast component processing slurry mixing equipment according to claim 1, characterized in that, The stirring mechanism (2) further includes: The second motor (26) is mounted on the connecting frame (21), and the output end of the second motor (26) is provided with a drive gear (27). Driven gear (28) is disposed on the outer surface of the cylinder (22). The driven gear (28) is coaxially disposed with the rotation axis of the cylinder (22). The driven gear (28) meshes with the driving gear (27).

7. The concrete precast component processing slurry mixing equipment according to claim 1, characterized in that, The box (1) is provided with a plurality of annular partitions (12), which are arranged concentrically and divide the box (1) into a plurality of storage chambers (11).

8. The concrete precast component processing slurry mixing equipment according to claim 7, characterized in that, It also includes a stirring unit (4), which comprises: A third motor (41) is mounted on the housing (1), and the output end of the third motor (41) extends into the housing (1); A cross-shaped connecting plate (42) is connected to the output end of the third motor (41), and the cross-shaped connecting plate (42) is located above the multiple storage cavities (11); Multiple spiral stirring blades (43) are located in multiple storage cavities (11), and the multiple spiral stirring blades (43) are connected to the cross connecting plate (42).

9. The concrete precast component processing slurry mixing equipment according to claim 8, characterized in that, The spiral stirring blade (43) includes: Multiple spiral plates (431) are arranged at intervals along the circumference of the box body (1), and the tops of the multiple spiral plates (431) are respectively connected to the cross connecting plate (42); Multiple connecting ribs (432) are spaced apart along the circumference of the box body (1). The top of the connecting ribs (432) is connected to the cross connecting plate (42). The connecting ribs (432) are connected to at least one of the spiral plates (431).

10. The concrete precast component processing slurry mixing equipment according to claim 9, characterized in that, The inner and / or outer sides of the spiral plate (431) abut against the inner wall of the storage cavity (11). A plurality of through holes (4311) are provided on the spiral plate (431) for material to pass through when the spiral plate (431) rotates.

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