Concrete proportioning and mixing device
By designing concrete mixing devices for rotary frames and telescopic feed pipes, the problem of difficult to achieve high-precision mixing in existing equipment is solved, the precise mixing and efficient mixing of raw materials are achieved, the combination accuracy and mixing uniformity are improved, and the equipment complexity and floor area are reduced.
Patent Information
- Application Number
- CN202411843660.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-14
- Publication Date
- 2025-03-04
AI Technical Summary
Existing fixed mixing equipment is difficult to achieve high-precision concrete ratio, especially when dealing with raw materials of different particle sizes and density, ratio errors are prone to occur, and the equipment is high in complexity, increased maintenance costs, and large footprints, making it not suitable for construction sites with limited space.
A concrete mixing device is designed, using a rotating frame and telescopic feed pipe to achieve accurate mixing and efficient mixing of raw materials. The hanging scales and connecting plates in the mixing component monitor and adjust the weight of the material in the mixing frame in real time. The design of the mixing component ensures that the material is fully stirred in the box.
The precise ratio and efficient mixing of a variety of raw materials are achieved, the proportion accuracy and mixing uniformity are improved, the floor area of the device is reduced, the equipment structure is simplified, the maintenance cost is reduced, and the production efficiency is improved.
Smart Images
Figure CN119550480A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of concrete raw material mixing, and in particular to a concrete proportioning mixing device. Background Art
[0002] At present, concrete proportioning mixing devices are widely used in the fields of construction and concrete production, which can effectively improve the mixing uniformity and production efficiency of concrete. Traditional concrete proportioning mixing devices mainly use fixed mixing equipment to complete the mixing of raw materials. However, with the rapid development and technological progress of the construction industry, the requirements for concrete proportioning accuracy and mixing efficiency are getting higher and higher, and the existing fixed mixing equipment can no longer meet the needs of modern construction.
[0003] Common methods in the prior art include the use of various types of mixing equipment and proportioning systems. For example, a common method is to use a multi-stage mixing drum and multiple mixing processes to ensure the uniformity of concrete through multiple mixing and mixing. However, the above methods have certain limitations in practical applications. In particular, in the process of multi-component proportioning, since the order and proportion of addition of each component need to be precisely controlled, traditional fixed mixing equipment is often difficult to achieve high-precision proportioning, especially when dealing with raw materials of different particle sizes and densities, proportioning errors are prone to occur. Secondly, although multi-stage mixing and multiple mixing can improve mixing uniformity, they will lead to increased equipment complexity, increased maintenance costs, and a large footprint, which is not suitable for construction sites with limited space. Finally, traditional mixing equipment lacks an effective dynamic adjustment mechanism during the feeding process, and cannot respond to problems such as raw material quality fluctuations in a timely manner, resulting in unstable final concrete performance.
[0004] In view of the above-mentioned related technologies, it is necessary to propose a concrete proportioning mixing device to solve one of the above-mentioned technical problems. Summary of the invention
[0005] In order to solve one of the above-mentioned technical problems, the present application provides a concrete proportioning mixing device.
[0006] The concrete proportioning mixing device provided in the present application adopts the following technical solution: A concrete proportioning mixing device, comprising: A box body, wherein a mixing assembly is arranged in the box body, feeding channels are arranged on both sides of the top of the box body, support frames are arranged on both sides of the box body, a combination plate is arranged on the top of the support frame, a placement hole is arranged through the middle of the combination plate, and connecting grooves are arranged around the inner wall of the placement hole; A proportioning component is arranged in the placement hole, the proportioning component includes a proportioning frame, a hanging scale and a branch material guide pipe, the proportioning frame is slidably arranged in the placement hole, the hanging scale is separately arranged at the opening of the placement hole, the top of the proportioning frame is provided with connecting plates around, the connecting plates are connected to the connecting part of the hanging scale in the connecting groove, and the top of the branch material guide pipe is arranged through the bottom of the proportioning frame; and A rotating frame is arranged at the rear end of the box body, and a plurality of feed boxes are arranged on the rotating frame. The rotating frame realizes the rotation of the plurality of feed boxes, and a telescopic feed pipe is arranged at the bottom of the plurality of feed boxes, and one of the feed pipes is arranged above the proportioning frame.
[0007] By adopting the above technical scheme, the concrete proportioning mixing device can achieve accurate proportioning and efficient mixing of multiple raw materials; specifically, the multiple feed boxes on the rotating frame can be loaded with different raw materials at the same time, and the amount of each raw material can be accurately controlled by rotating and telescopic feed pipes to ensure the accuracy of the proportions; the hanging scale on the proportioning frame monitors the weight changes in real time, further ensuring the proportion accuracy of each material; in addition, the mixing design of the mixing component enables the materials to be fully and evenly stirred in the box, thereby improving the mixing efficiency and quality; the overall structure is integrated on the box for operation, and provides stable load-bearing, which reduces the footprint of the device and improves the overall adaptability of the device.
[0008] Optionally, the rotating frame includes a support platform, a rotating column and a carrying plate, the support platform is fixedly connected to the rear end of the box body, the rotating column is rotatably arranged on the top of the support platform, the carrying plate is fixedly connected to the top of the rotating column, the carrying plate carries a plurality of the feed boxes, and the feed pipe passes through the carrying plate.
[0009] By adopting the above technical solution, the rotating frame can achieve efficient rotational positioning of multiple feed boxes, ensuring that each feed box can accurately transport raw materials to the top of the proportioning frame, thereby improving the degree of automation and accuracy of the concrete proportioning process; at the same time, the design of the carrying plate makes the layout of the feed boxes more compact, reducing the overall footprint of the equipment.
[0010] Optionally, an adjustment assembly is provided at the bottom of the supporting plate, and the adjustment assembly includes a plurality of cylinders and a fixed plate. The cylinder is provided at the bottom of the supporting plate, one end of the fixed plate is provided on the output end of the cylinder, and the other end is connected to the telescopic section of the feed pipe to realize the telescopic operation of the feed pipe.
[0011] By adopting the above technical solution, the concrete proportioning mixing device can accurately control the feeding amount; specifically, the coordinated use of the cylinder and the fixed plate in the adjustment component allows the feeding pipe to be telescopic, thereby adjusting the feeding position and height according to different needs, thereby improving the flexibility and accuracy of feeding; this design not only reduces manual intervention and improves work efficiency, but also ensures the accuracy of concrete proportioning.
[0012] Optionally, a driving assembly is provided on the support platform, and the driving assembly includes a driving motor, a driving gear and a driven gear. The driving motor is arranged on one side of the support platform, the driving gear is arranged on the output end of the driving motor, and the driven gear is sleeved on the outside of the rotating column, and the driving gear and the driven gear are meshed with each other.
[0013] By adopting the above technical solution, the driving motor can drive the rotating column and the carrier plate thereon to rotate through the meshing transmission of the driving gear and the driven gear, thereby realizing automatic switching and feeding of multiple feeding boxes, thereby improving the feeding efficiency and the degree of automation.
[0014] Optionally, a plurality of inclined plates are arranged inside the feed channel, and the plurality of inclined plates are staggered in the vertical direction of the feed channel to achieve staged drop guidance of the raw materials.
[0015] By adopting the above technical solution, several inclined plates are staggered in the vertical direction of the feed channel, which can enable the raw materials to be guided in stages when entering the box; this design can effectively reduce the blockage of raw materials during the feeding process, improve the uniformity and continuity of raw material transportation, thereby improving the working efficiency and mixing quality of the entire mixing device.
[0016] Optionally, the branch material guide pipe includes a horizontal conduit and a diverter pipe, the top of the horizontal conduit is protruding and connected to the proportioning frame, the diverter pipe is arranged at two ports of the horizontal conduit, and the diverter pipe is arranged at the pipe mouth of the feed pipe.
[0017] By adopting the above technical solution, the design of the branch guide pipe enables the raw materials to be evenly distributed in the proportioning frame, thereby improving the uniformity and efficiency of mixing; the protruding design of the horizontal guide pipe ensures that the raw materials enter the proportioning frame smoothly, and the setting of the diversion pipe further ensures the uniform distribution of the raw materials at the feed pipe port, reducing the risk of blockage.
[0018] Optionally, the mixing assembly includes a mixing motor, a rotating rod and a plurality of mixing rods, the mixing motor is arranged on the top of the box, the rotating rod is arranged in the box and connected to the output end of the mixing motor, and the plurality of mixing rods are arranged at equal intervals on the outer surface of the rotating rod.
[0019] By adopting the above technical solution, the mixing motor provides power to drive the rotating rod to rotate, so that the mixing rods arranged at equal intervals can fully stir various raw materials in the box to ensure the uniformity and consistency of the mixture.
[0020] Optionally, the support frame includes a plurality of fixed seats and support rods, the fixed seats are fixedly connected to both sides of the box body, a buffer groove is provided through the top of the fixed seat, a spring is provided in the buffer groove, the support rod is provided in the buffer groove, the bottom of the support rod is connected to the spring, and the top of the support rod is connected to the bottom of the combination plate.
[0021] By adopting the above technical solution, the support frame structure can effectively absorb and alleviate the vibration generated during the operation of the equipment, thereby improving the stability and service life of the equipment; specifically, the coordinated design of the fixed seat and the support rod enables the combined plate to move up and down within a certain range, while the setting of the spring can further buffer the vibration and reduce the risk of damage to the equipment due to vibration.
[0022] Optionally, mounting frames are arranged around the bottom of the box body, and a load-bearing frame is arranged at the rear end of the mounting frame for bearing the bottom of the rotating frame.
[0023] By adopting the above technical solution, the setting of the mounting frame and the load-bearing frame can effectively disperse and bear the weight of the rotating frame, improve the stability and safety of the entire device, and avoid structural damage or tipping risks caused by uneven weight distribution.
[0024] Optionally, a material guiding pipe is provided at the bottom of the box body, and a control valve is provided at the guiding pipe.
[0025] By adopting the above technical solution, precise control and smooth discharge of the mixed concrete materials are achieved; specifically, the design of the material guide pipe allows the mixed concrete to flow out smoothly, and the setting of the control valve allows the operator to adjust the outflow speed and flow rate of the concrete according to actual needs, thereby ensuring continuity and stability during the construction process; this design not only improves work efficiency, but also effectively avoids equipment failures caused by material blockage.
[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through multiple feeding boxes and telescopic feeding pipes on the rotating frame, accurate proportioning of various raw materials can be achieved, which improves the proportioning accuracy and ensures the quality stability of concrete; the hanging scale and connecting plate design in the proportioning component can monitor and adjust the weight of materials in the proportioning frame in real time, ensure the accuracy of each proportioning, and further improve the proportioning accuracy of concrete; 2. The design of the support frame not only provides structural support, but also reduces vibration during the mixing process through spring buffering, thereby enhancing the stability and service life of the equipment; the overall structure of the device is integrated on the box for operation, and provides stable bearing, which reduces the footprint of the device and improves the overall adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a three-dimensional view of a concrete proportioning mixing device in the present application.
[0028] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at point A in the middle.
[0029] Figure 3 It is a side view of a concrete proportioning mixing device in the present application.
[0030] Figure 4 It is a sectional view of the box structure of a concrete proportioning and mixing device in the present application.
[0031] In the figure: 1, box; 11, mixing assembly; 111, mixing motor; 112, rotating rod; 113, mixing rod; 12, feeding channel; 121, tilting plate; 13, support frame; 131, fixing seat; 132, support rod; 133, buffer groove; 134, spring; 14, combination plate; 141, placement hole; 142, connecting groove; 15, mounting frame; 151, load-bearing frame; 16, material guide pipe; 17, control valve; 2 , proportioning assembly; 21, proportioning frame; 22, hanging scale; 23, branch guide pipe; 231, horizontal guide pipe; 232, diverter pipe; 24, connecting plate; 3, rotating frame; 31, support table; 32, rotating column; 33, carrier plate; 34, adjustment assembly; 341, cylinder; 342, fixing plate; 35, driving assembly; 351, driving motor; 352, driving gear; 353, driven gear; 4, feeding box; 41, feeding pipe. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1-4 This application is described in further detail.
[0033] Embodiment 1 refer to Figure 1-2 The embodiment of the present application discloses a concrete proportioning and mixing device, including a box body 1, a proportioning component 2 and a rotating frame 3.
[0034] A mixing assembly 11 is arranged in the box body 1, and feeding channels 12 are arranged on both sides of the top of the box body 1. Support frames 13 are arranged on both sides of the box body 1, and a combination plate 14 is arranged on the top of the support frame 13. A placement hole 141 is penetrated through the middle of the combination plate 14, and connecting grooves 142 are arranged around the inner wall of the placement hole 141; a proportioning assembly 2 is arranged in the placement hole 141, and the proportioning assembly 2 includes a proportioning frame 21, a hanging scale 22 and a material guide pipe 23, the proportioning frame 21 is slidably arranged in the placement hole 141, and the hanging scale 22 is arranged in the At the opening of the placement hole 141, connecting plates 24 are arranged around the top of the proportioning frame 21, and the connecting plates 24 are connected to the connecting part of the hanging scale 22 in the connecting groove 142. The top of the branch material guide pipe 23 is penetrated and arranged at the bottom of the proportioning frame 21; the rotating frame 3 is arranged at the rear end of the box body 1, and a plurality of feed boxes 4 are arranged on the rotating frame 3. The rotating frame 3 realizes the rotation of the plurality of feed boxes 4, and the bottom of the plurality of feed boxes 4 is provided with telescopic feed pipes 41, and one of the feed pipes 41 is arranged corresponding to the top of the proportioning frame 21.
[0035] The concrete proportioning and mixing device can achieve accurate proportioning and efficient mixing of multiple raw materials; specifically, the multiple feeding boxes 4 on the rotating frame 3 can be loaded with different raw materials at the same time, and the amount of each raw material can be accurately controlled by rotating and retracting the feeding pipe 41 to ensure the accuracy of the proportioning; the hanging scale 22 on the proportioning frame 21 monitors the weight change in real time, further ensuring the proportioning accuracy of each material, that is, the raw materials are guided into the proportioning frame 21 through the feeding pipe 41, and the feeding pipe 41 is retractable, which can reduce the dust dispersion during feeding and the impact on the environment, and the guided raw materials can be weighed on the proportioning frame 21 through the hanging scale 22 to ensure a stable proportion; in addition, the mixing design of the mixing component 11 enables the materials to be fully and evenly stirred in the box body 1, thereby improving the mixing efficiency and quality; the overall structure is integrated on the box body 1 for operation, and provides stable bearing, which reduces the footprint of the device and improves the overall adaptability of the device.
[0036] refer to Figure 3In the present embodiment, more specifically, the rotating frame 3 includes a support platform 31, a rotating column 32 and a carrying plate 33, wherein the support platform 31 is fixedly connected to the rear end of the box body 1, the rotating column 32 is rotatably arranged on the top of the support platform 31, the carrying plate 33 is fixedly connected to the top of the rotating column 32, the carrying plate 33 carries a plurality of the feed boxes 4, and the feed pipe 41 runs through the carrying plate 33, thereby realizing efficient rotational positioning of the plurality of feed boxes 4 by the rotating frame 3, ensuring that each feed box 4 can accurately transport the raw materials to the top of the proportioning frame 21, thereby improving the degree of automation and accuracy of the concrete proportioning process; at the same time, the design of the carrying plate 33 makes the arrangement of the feed box 4 more compact, thereby reducing the overall footprint of the equipment.
[0037] refer to Figure 3 In this embodiment, more specifically, an adjusting assembly 34 is provided at the bottom of the carrier plate 33, and the adjusting assembly 34 includes a plurality of cylinders 341 and a fixing plate 342. The cylinder 341 is provided at the bottom of the carrier plate 33, and one end of the fixing plate 342 is provided on the output end of the cylinder 341, and the other end is connected to the telescopic section of the feeding pipe 41 to realize the telescopic operation of the feeding pipe 41. The concrete proportioning mixing device can accurately control the feeding amount; specifically, the cylinder 341 and the fixing plate 342 in the adjusting assembly 34 are used in coordination, so that the feeding pipe 41 can realize the telescopic operation, thereby adjusting the feeding position and height according to different needs, improving the flexibility and accuracy of feeding, and reducing the dispersion of dusty raw materials and reducing the impact on the environment; this design not only reduces manual intervention and improves work efficiency, but also ensures the accuracy of concrete proportioning.
[0038] refer to Figure 3 In the present embodiment, more specifically, a driving assembly 35 is provided on the support platform 31, and the driving assembly 35 includes a driving motor 351, a driving gear 352 and a driven gear 353. The driving motor 351 is arranged on one side of the support platform 31, and the driving gear 352 is arranged on the output end of the driving motor 351. The driven gear 353 is sleeved on the outside of the rotating column 32. The driving gear 352 and the driven gear 353 are meshed with each other. The driving motor 351 can drive the rotating column 32 and the carrier plate 33 thereon to rotate through the meshing transmission of the driving gear 352 and the driven gear 353, thereby realizing automatic switching and feeding of multiple feeding boxes 4, thereby improving feeding efficiency and automation.
[0039] refer to Figure 4In this embodiment, more specifically, a plurality of inclined plates 121 are arranged inside the feed channel 12, and the plurality of inclined plates 121 are staggered in the vertical direction of the feed channel 12 to achieve staged drop guidance of the raw materials. The plurality of inclined plates 121 are staggered in the vertical direction of the feed channel 12, so that the raw materials can be guided in stages when entering the box body 1. This design can effectively reduce the blockage of the raw materials during the feeding process, improve the uniformity and continuity of the raw material transportation, and thus improve the working efficiency and mixing quality of the entire mixing device.
[0040] refer to Figure 4 In the present embodiment, more specifically, the branch material guide pipe 23 comprises a horizontal conduit 231 and a diverter pipe 232. The top of the horizontal conduit 231 is protruding and communicated with the proportioning frame 21. The diverter pipe 232 is disposed at two ends of the horizontal conduit 231. The diverter pipe 232 is disposed at the pipe mouth of the feed pipe. The design of the branch material guide pipe 23 enables the raw materials to be evenly distributed in the proportioning frame 21, thereby improving the uniformity and efficiency of mixing. The protruding design of the horizontal conduit 231 ensures that the raw materials can smoothly enter the proportioning frame 21, and the setting of the diverter pipe 232 further ensures the even distribution of the raw materials at the feed pipe mouth, thereby reducing the risk of blockage.
[0041] refer to Figure 4 In the present embodiment, more specifically, the mixing assembly 11 includes a mixing motor 111, a rotating rod 112 and a plurality of mixing rods 113. The mixing motor 111 is arranged on the top of the box body 1, the rotating rod 112 is arranged in the box body 1 and connected to the output end of the mixing motor 111, and a plurality of mixing rods 113 are arranged on the outer surface of the rotating rod 112 at equal intervals. The mixing motor 111 provides power to drive the rotating rod 112 to rotate, so that the mixing rods 113 arranged at equal intervals can fully stir various raw materials in the box body 1 to ensure the uniformity and consistency of the mixture.
[0042] refer to Figure 4In the present embodiment, more specifically, the support frame 13 includes a plurality of fixed seats 131 and support rods 132, the fixed seats 131 are fixedly connected to the two sides of the box body 1 respectively, the top of the fixed seat 131 is penetrated by a buffer groove 133, a spring 134 is arranged in the buffer groove 133, the support rod 132 is arranged in the buffer groove 133, and the bottom of the support rod 132 is connected to the spring 134, and the top of the support rod 132 is connected to the bottom of the combination plate 14, the support frame 13 structure can effectively absorb and alleviate the vibration generated during the operation of the equipment, and improve the stability and service life of the equipment; specifically, the matching design of the fixed seat 131 and the support rod 132 enables the combination plate 14 to move up and down within a certain range, and the setting of the spring 134 can further buffer the vibration and reduce the risk of damage to the equipment due to vibration.
[0043] In this embodiment, more specifically, mounting frames 15 are arranged around the bottom of the box body 1, and a load-bearing frame 151 is arranged at the tail end of the mounting frame 15 for bearing the bottom of the rotating frame 3. The arrangement of the mounting frame 15 and the load-bearing frame 151 can effectively disperse and bear the weight of the rotating frame 3, thereby improving the stability and safety of the entire device and avoiding structural damage or tipping risks caused by uneven weight distribution.
[0044] In this embodiment, more specifically, a material guide pipe 16 is provided at the bottom of the box body 1, and a control valve 17 is provided at the guide pipe, so as to realize accurate control and smooth discharge of the mixed concrete material; specifically, the design of the material guide pipe 16 enables the mixed concrete to flow out smoothly, and the setting of the control valve 17 allows the operator to adjust the outflow speed and flow rate of the concrete according to actual needs, thereby ensuring continuity and stability during the construction process; this design not only improves work efficiency, but also effectively avoids equipment failures caused by material blockage.
[0045] The implementation principle of a concrete proportioning and mixing device in an embodiment of the present application is as follows: raw materials of different components are supplied to the proportioning frame 21 in sequence through the supply box 4 on the rotating frame 3, and the hanging scale 22 monitors the weight of the materials in the proportioning frame 21 in real time to ensure the proportioning accuracy; the raw materials evenly enter the box body 1 through the branch guide pipe 23, are mixed through the mixing component 11, and are finally discharged through the guide pipe 16; this structural design not only improves the proportioning accuracy and mixing uniformity of concrete, but also simplifies the equipment structure, reduces maintenance costs, and improves production efficiency.
[0046] Embodiment 2 Raw material selection and mix ratio: raw materials The cement used is P·O42.5 cement produced by Beijing Cement Plant, and its main indicators are shown in Table 1; the fly ash used is Grade II fly ash produced by Datang Tongzhou Power Plant, and its main indicators are shown in Table 2; the slag powder used is Sanhe Tianlong S95 grade, and its main indicators are shown in Table 3; the sand used is iron tailings machine-made sand, and the performance test results are shown in Table 4 below; the gravel used is mountain crushed stone, and the performance test results are shown in Table 5 below; the admixture used is Beijing Jinyu Technology's polycarboxylic acid high-performance water reducer, and the performance test results are shown in Table 6 below.
[0047] Table 1 Cement performance test results Table 2 Performance indicators of fly ash Table 3 Performance indicators of slag powder Table 4 Performance indicators of machine-made sand Table 5 Performance indexes of coarse aggregate Table 6 Technical indicators of high performance water reducing agent Determine the mix ratio The study used C25~C60 strength grade concrete to conduct early estimated strength research. The raw materials used in the previous section were used, and the mix ratios adopted the single-mixture and double-mixture mix ratios frequently used in Beijing. The mix ratios are shown in Table 7 below; the C25-C60 benchmark water-binder ratios are 0.52, 0.47, 0.43, 0.4, 0.37, 0.34, 0.32, and 0.29; among them, when the fly ash content is within 20% and the slag powder content is within 30%, the water-binder ratio does not change. When the water-binder ratio exceeds this value, the water-binder ratio decreases accordingly with the increase of the fly ash and slag powder content. When the fly ash content is above 30%, the water-binder ratio decreases by 0.15 for every 10% increase in the content. When the slag powder content is above 40%, the water-binder ratio decreases by 0.15 for every 10% increase in the content. The reduced water-binder ratio 28d or 60d strength reaches more than 130% of the design strength grade.
[0048] Table 7 Admixture addition method and dosage The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A concrete proportioning mixing device, characterized in that: include: A box body (1), wherein a mixing assembly (11) is arranged inside the box body (1), feeding channels (12) are arranged on both sides of the top of the box body (1), support frames (13) are arranged on both sides of the box body (1), a combination plate (14) is arranged on the top of the support frame (13), a placement hole (141) is arranged through the middle of the combination plate (14), and connecting grooves (142) are arranged around the inner wall of the placement hole (141); A proportioning component (2) is arranged in the placement hole (141), the proportioning component (2) comprises a proportioning frame (21), a hanging scale (22) and a branch material guide pipe (23), the proportioning frame (21) is slidably arranged in the placement hole (141), the hanging scale (22) is arranged at the opening of the placement hole (141), connecting plates (24) are arranged around the top of the proportioning frame (21), the connecting plates (24) are connected to the connecting part of the hanging scale (22) in the connecting groove (142), and the top of the branch material guide pipe (23) is arranged through the bottom of the proportioning frame (21); and A rotating frame (3) is arranged at the rear end of the box body (1), and a plurality of feed boxes (4) are arranged on the rotating frame (3). The rotating frame (3) realizes the rotation of the plurality of feed boxes (4), and a telescopic feed pipe (41) is arranged at the bottom of the plurality of feed boxes (4), wherein one of the feed pipes (41) is arranged above the proportioning frame (21).
2. A concrete proportioning mixing device according to claim 1, characterized in that: The rotating frame (3) comprises a support platform (31), a rotating column (32) and a carrying plate (33); the support platform (31) is fixedly connected to the rear end of the box body (1); the rotating column (32) is rotatably arranged on the top of the support platform (31); the carrying plate (33) is fixedly connected to the top of the rotating column (32); the carrying plate (33) carries a plurality of the feed boxes (4); and the feed pipe (41) passes through the carrying plate (33).
3. A concrete proportioning mixing device according to claim 2, characterized in that: An adjusting assembly (34) is arranged at the bottom of the supporting plate (33), and the adjusting assembly (34) comprises a plurality of cylinders (341) and a fixing plate (342). The cylinder (341) is arranged at the bottom of the supporting plate (33), one end of the fixing plate (342) is arranged on the output end of the cylinder (341), and the other end is connected to the telescopic section of the feeding pipe (41), so as to realize the telescopic operation of the feeding pipe (41).
4. A concrete proportioning mixing device according to claim 2, characterized in that: A driving assembly (35) is arranged on the support platform (31), and the driving assembly (35) comprises a driving motor (351), a driving gear (352) and a driven gear (353). The driving motor (351) is arranged on one side of the support platform (31), the driving gear (352) is arranged on the output end of the driving motor (351), and the driven gear (353) is sleeved on the outside of the rotating column (32), and the driving gear (352) and the driven gear (353) are meshed with each other.
5. A concrete proportioning mixing device according to claim 1, characterized in that: A plurality of inclined plates (121) are arranged inside the feed channel (12), and the plurality of inclined plates (121) are staggeredly arranged in the vertical direction of the feed channel (12) to achieve staged drop guidance of the raw materials.
6. A concrete proportioning mixing device according to claim 1, characterized in that: The branch material guide pipe (23) comprises a horizontal guide pipe (231) and a shunt pipe (232); the top of the horizontal guide pipe (231) is protruding and connected to the proportioning frame (21); the shunt pipe (232) is arranged at two ends of the horizontal guide pipe (231); and the shunt pipe (232) is arranged at the pipe mouth of the feed pipe.
7. A concrete proportioning and mixing device according to claim 1, characterized in that: The mixing assembly (11) comprises a mixing motor (111), a rotating rod (112) and a plurality of mixing rods (113); the mixing motor (111) is arranged on the top of the box (1); the rotating rod (112) is arranged in the box (1) and connected to the output end of the mixing motor (111); and the plurality of mixing rods (113) are arranged at equal intervals on the outer surface of the rotating rod (112).
8. A concrete proportioning and mixing device according to claim 1, characterized in that: The support frame (13) comprises a plurality of fixing seats (131) and a supporting rod (132); the fixing seats (131) are respectively fixedly connected to two sides of the box body (1); a buffer groove (133) is provided through the top of the fixing seat (131); a spring (134) is provided in the buffer groove (133); the supporting rod (132) is provided in the buffer groove (133); the bottom of the supporting rod (132) is connected to the spring (134); and the top of the supporting rod (132) is connected to the bottom of the combined board (14).
9. A concrete proportioning and mixing device according to claim 1, characterized in that: A mounting frame (15) is arranged around the bottom of the box body (1), and a load-bearing frame (151) is arranged at the rear end of the mounting frame (15) for bearing the bottom of the rotating frame (3).
10. A concrete proportioning and mixing device according to claim 1, characterized in that: A material guide pipe (16) is provided at the bottom of the box body (1), and a control valve (17) is provided at the guide pipe.