A mortar raw material proportioning and weighing device based on dry mortar mixing

Abstract

The application relates to the field of dry-mixed mortar metering, and discloses a mortar raw material proportioning metering and weighing device based on dry-mixed mortar mixing, which comprises a quantitative mixer base, a mixing bin is fixedly connected to the top of the quantitative mixer base, mounting racks are fixedly connected to the two sides of the top of the mixing bin, and a quantitative output assembly is arranged at the top of the mounting rack. The volume type initial division of the quantitative wheel and the gravity sensing type fine adjustment of the quantitative plate are matched, the quantitative wheel is used to quickly and coarsely determine the proportioning base with a constant volume, the quantitative plate is used to accurately correct the proportioning base according to the material gravity dynamic adjustment opening threshold, the feeding efficiency of continuous work is ensured, and the proportioning metering precision of single-time discharging is obviously improved.

Description

Technical Field

[0001] This application relates to the field of dry-mixed mortar metering technology, and in particular to a mortar raw material proportioning and weighing device based on dry-mixed mortar mixing. Background Technology

[0002] Dry-mixed mortar is a dry powder building material made by pre-mixing solid raw materials such as cement, sand, fly ash, and various functional admixtures in a factory according to a specific ratio. The accuracy of its proportioning and measurement directly determines the quality stability of the final product. In the production process of dry-mixed mortar, the proportioning and weighing of raw materials is the core link. In the existing technology, the proportioning and weighing of dry-mixed mortar often adopts a single volumetric feeding method or a single sensor-based weighing method. Although volumetric feeding is efficient, it is affected by fluctuations in material density, particle shape, and differences in flowability, making it difficult to guarantee accurate proportions under constant mass. Moreover, it has poor adaptability to different materials. While sensor-based weighing has higher accuracy, it is easily affected by factors such as equipment vibration, material impact, and residual material in the air during dynamic weighing. Furthermore, the sensor is prone to zero-point drift after long-term use, requiring frequent calibration.

[0003] The following problems also exist in this process: First, the volumetric feeding method cannot compensate for the weight deviation caused by the difference in the physical properties of the materials, resulting in an inherent error between the actual ratio and the set ratio. This error will accumulate with the change of material batches, eventually affecting the product quality of dry-mixed mortar. Second, the feeding and weighing links in the existing device are independent of each other. The equipment structure is complex and the cost is high. Moreover, the lag effect in the weighing process makes the ratio adjustment response slow, making it difficult to achieve fast and flexible ratio fine-tuning. Summary of the Invention

[0004] This application proposes a mortar raw material proportioning and weighing device based on dry-mixed mortar, which has the advantages of high metering accuracy and strong material adaptability, in order to solve the problems of insufficient metering accuracy and slow adjustment response of existing devices.

[0005] To achieve the above objectives, this application adopts the following technical solution: a mortar raw material proportioning and weighing device based on dry-mixed mortar, including a quantitative mixer base, a mixing chamber fixedly connected to the top of the quantitative mixer base, mounting frames fixedly connected to both sides of the top of the mixing chamber, and a quantitative output component provided on the top of the mounting frame;

[0006] The mounting frame is equipped with a precision metering component, and the quantitative mixer base is equipped with a mixing component on one side of its top.

[0007] Preferably, the quantitative output component includes a first drive motor, which is fixedly connected to the top of the mounting frame. The output end of the first drive motor is fixedly connected to a first rotating shaft. A quantitative wheel is fixedly connected to the outer side of the first rotating shaft. A feeding funnel is sleeved on the outer side of the quantitative wheel. A protective plate is fixedly connected to the outer side of the feeding funnel. Both the protective plate and the feeding funnel are fixedly connected to the mounting frame. A first baffle plate is provided on one side of the bottom of the feeding funnel, and a second baffle plate is provided on the other side of the bottom of the feeding funnel. Both the first baffle plate and the second baffle plate are fixedly connected to the mounting frame. The first baffle plate, the second baffle plate, and the inner wall of the mounting frame together form a material discharge channel for temporarily storing raw materials, allowing the material to fall into the interior of the mixing chamber through the channel formed by the first baffle plate, the second baffle plate, and the mounting frame.

[0008] Preferably, the precision metering component includes a second rotating shaft, which is rotatably connected to the inside of the mounting frame. A metering plate is fixedly sleeved on the outer side of the second rotating shaft, and a reset torsion spring is fixedly sleeved on the outer side of one end of the second rotating shaft. The reset torsion spring is fixedly connected to the mounting frame.

[0009] Preferably, the precision metering component further includes a torsion housing, which is disposed on one side of the mounting bracket and threadedly connected to the mounting bracket. One end of a spring is fixedly connected to one side of the interior of the torsion housing, and the other end of the spring is fixedly connected to a circular top plate. Multiple sets of push plates are fixedly connected to one side of the circular top plate, and the push plates are slidably connected to the interior of the torsion housing. A limit plate is provided on one side of the push plate, and the limit plate is fixedly connected to the mounting bracket. A pressure groove is opened inside the torsion housing, and multiple sets of extrusion balls are slidably connected inside the pressure groove. One side of a friction plate abuts against the interior of the torsion housing, and the other side of the friction plate abuts against the second rotating shaft.

[0010] Preferably, the mixing assembly includes a second drive motor, which is fixedly connected to one side of the top of the quantitative mixer base. A first pulley is fixedly sleeved on the outer side of the output end of the second drive motor. A third rotating shaft is provided on one side of the second drive motor and is movably sleeved on one side of the top of the quantitative mixer base. A second pulley is fixedly sleeved on the outer side of one end of the third rotating shaft. The second pulley and the first pulley are driven by a belt. A first gear is fixedly sleeved on the outer side of the third rotating shaft. A fourth rotating shaft is provided on one side of the third rotating shaft and is movably sleeved on one side of the top of the quantitative mixer base. A second gear is fixedly sleeved on the outer side of the fourth rotating shaft. The first gear and the second gear are meshed together. A third gear is provided on one side of the second gear and is fixedly sleeved on the outer side of the fourth rotating shaft. A fifth rotating shaft is provided on one side of the fourth rotating shaft and is movably sleeved on one side of the top of the quantitative mixer base. A fourth gear is fixedly sleeved on the outer side of the fifth rotating shaft and is meshed with the third gear.

[0011] Preferably, the mixing component further includes a fifth gear, which is fixedly sleeved on the outer side of the fourth and fifth rotating shafts respectively, and the two sets of fifth gears mesh with each other. A sixth rotating shaft is rotatably connected to both sides inside the mounting bracket. A sixth gear is fixedly sleeved on the outer side of the sixth rotating shaft, and the sixth gear meshes with the fifth gear. Multiple sets of stirring plates are fixedly connected to the outer side of the sixth rotating shaft.

[0012] Preferably, the pressure groove is a centripetal smooth arc groove. When the push plate applies a pushing force to the extrusion ball, the extrusion ball slides along the inner wall curve of the pressure groove, causing it to slowly approach the friction plate after moving, thereby increasing the pressure on the friction plate. This indirectly increases the pressure on the outer surface of the second rotating shaft through the friction plate. When the normal pressure on the contact surface of the friction plate increases, the frictional torque that hinders rotation increases, ultimately resulting in a decrease in rotational flexibility and a significant increase in rotational resistance.

[0013] Preferably, the torsion shell is a stepped hollow structure with gaps on both sides of the inner step. The outer gap is used for threaded connection with the mounting bracket, and the inner gap is used to allow displacement space for the annular top plate and the push plate, so as to avoid interfering with the normal operation of the transmission components.

[0014] The beneficial effects of this invention are as follows:

[0015] 1. This invention combines the volumetric initial division of the metering wheel with the gravity-sensing fine adjustment of the metering plate to achieve rapid coarse determination of the proportioning base by the metering wheel with a constant volume, and then precise correction by the metering plate dynamically adjusting the opening threshold according to the gravity of the material. This ensures the feeding efficiency of continuous operation and significantly improves the proportioning accuracy of single feeding.

[0016] 2. This invention drives the extrusion ball to slide along the pressure groove by rotating and twisting the outer shell to change the positive pressure of the friction plate on the second rotating shaft, thereby realizing stepless adjustment of friction damping. This allows the opening sensitivity and reset speed of the metering plate to be flexibly adapted to the flowability of different materials, thus broadening the applicability of the device to various dry-mixed mortar raw materials. At the same time, it avoids frequent replacement of elastic elements and improves the stability and reliability of long-term use. Attached Figure Description

[0017] The accompanying drawings, which form part of this specification, illustrate embodiments disclosed in this application and, together with the specification, serve to explain the principles of this application in a clear and understandable manner.

[0018] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description, wherein:

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the quantitative output component structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the internal structure of the mounting bracket of the present invention;

[0023] Figure 5 For the present invention Figure 4 Enlarged view of the structure at point A in the middle;

[0024] Figure 6 This is a schematic diagram of the internal structure of the torsion shell of the present invention;

[0025] Figure 7 This is a schematic diagram of the hybrid component structure of the present invention;

[0026] Figure 8 This is a schematic diagram of the internal structure of the mixing chamber of the present invention.

[0027] The components include: 1. Quantitative mixer base; 2. Mixing chamber; 3. Mounting frame; 4. Quantitative output component; 41. First drive motor; 42. First rotating shaft; 43. Quantitative wheel; 44. Feed funnel; 45. Protective plate; 46. First baffle plate; 47. Second baffle plate; 5. Precision metering component; 51. Second rotating shaft; 52. Quantitative plate; 53. Return torsion spring; 54. Torsion housing; 55. Spring; 56. Circular top plate; 57. Push plate; 58. Quantitative output component; 99. Quantitative output component; 100. Quantitative output component; 11. First drive motor; 12. First rotating shaft; 13. Quantitative output wheel; 14. Feeding funnel; 15. Protective plate; 16. First baffle plate; 17. Second baffle plate; 18. Quantitative output component; 19. Quantitative output component; 100. Quantitative output component; 11. First drive motor; 12. First rotating shaft; 19. Quantitative output wheel; 100. Quantitative output wheel; 11. Quantitative output wheel; 12. Quantitative output wheel; 13. Quantitative output wheel; 14. Quantitative output wheel; 15. Quantitative output wheel; 16. Quantitative output wheel; 17. Quantitative output wheel; 18. Quantitative output wheel; 19. Quantitative output wheel; 100. Quantitative output wheel; 11. Quantitative output wheel; 19. Quantitative output wheel; 100. Quantitative output wheel; 19. Quantitative output wheel; 100. Quantitative output wheel; 19. Quantit 8. Limiting plate; 59. Pressurizing groove; 510. Extrusion ball; 511. Friction plate; 6. Mixing assembly; 61. Second drive motor; 62. First pulley; 63. Third shaft; 64. Second pulley; 65. First gear; 66. Fourth shaft; 67. Second gear; 68. Third gear; 69. Fifth shaft; 610. Fourth gear; 611. Fifth gear; 612. Sixth shaft; 613. Sixth gear; 614. Stirring plate. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0029] Please see Figure 1-8 A mortar raw material proportioning and weighing device based on dry-mixed mortar mixing includes a quantitative mixer base 1, a mixing chamber 2 fixedly connected to the top of the quantitative mixer base 1, mounting frames 3 fixedly connected to both sides of the top of the mixing chamber 2, and a quantitative output component 4 provided on the top of the mounting frame 3.

[0030] The mounting frame 3 is equipped with a precision metering component 5, and the quantitative mixer base 1 is equipped with a mixing component 6 on one side of its top.

[0031] Please see Figures 1 to 3The quantitative output component 4 includes a first drive motor 41, which is fixedly connected to the top of the mounting frame 3. The output end of the first drive motor 41 is fixedly connected to a first rotating shaft 42. A quantitative wheel 43 is fixedly connected to the outside of the first rotating shaft 42. A feeding funnel 44 is sleeved on the outside of the quantitative wheel 43. A protective plate 45 is fixedly connected to the outside of the feeding funnel 44. Both the protective plate 45 and the feeding funnel 44 are fixedly connected to the mounting frame 3. A first baffle plate 46 is provided on one side of the bottom of the feeding funnel 44, and a second baffle plate 47 is provided on the other side of the bottom of the feeding funnel 44. Both the first baffle plate 46 and the second baffle plate 47 are fixedly connected to the mounting frame 3. The first baffle plate 46, the second baffle plate 47 and the inner wall of the mounting frame 3 together form a material discharge channel for temporarily storing raw materials, so that the material can fall into the interior of the mixing chamber 2 through the channel formed by the first baffle plate 46, the second baffle plate 47 and the mounting frame 3.

[0032] Specifically, the working principle of this section is as follows: After the material is poured in from above the feeding funnel 44, because the outer wall of the metering wheel 43 is tightly attached to the inner wall of the feeding funnel 44, the material will not fall directly, but will first fall into the material trough opened on the outer side of the metering wheel 43. When the first drive motor 41 starts, it drives the first rotating shaft 42 to rotate. The first rotating shaft 42 drives the metering wheel 43 to rotate synchronously. The material in the trough is carried to the bottom opening of the feeding funnel 44 with the rotation of the metering wheel 43. At this time, the material is freed from the constraint of the metering wheel 43 and falls into the material discharge channel formed by the first baffle plate 46, the second baffle plate 47 and the inner wall of the mounting frame 3 under the action of gravity. Finally, the material passes through the material discharge channel. Entering the mixing chamber 2, during this process, since the volume of the trough outside the metering wheel 43 is a constant value, and the volume of material conveyed by the metering wheel 43 per revolution is fixed, the total amount of material fed can be precisely controlled by controlling the number of revolutions or the rotation angle of the first drive motor 41. At the same time, the protective plate 45 can effectively prevent material leakage or splashing at the gap between the feed funnel 44 and the metering wheel 43, ensuring that all material enters the mixing chamber 2 through the discharge channel, avoiding material loss. Thus, continuous and stable quantitative feeding is achieved, and the repeatability and consistency of the single feeding amount are ensured, providing a reliable benchmark for subsequent accurate proportioning and metering.

[0033] Please see Figure 3 The precision metering component 5 includes a second rotating shaft 51, which is rotatably connected to the inside of the mounting frame 3. A metering plate 52 is fixedly sleeved on the outside of the second rotating shaft 51, and a reset torsion spring 53 is fixedly sleeved on the outside of one end of the second rotating shaft 51. The reset torsion spring 53 is fixedly connected to the mounting frame 3.

[0034] Specifically, the working principle of this section is as follows: Material falls through the feeding channel onto the upper surface of the metering plate 52. At this time, the metering plate 52 remains closed under the pre-tightening torque of the return torsion spring 53, receiving and temporarily storing the falling material. As the material accumulates, the gravitational torque on the metering plate 52 gradually increases. When the gravitational torque exceeds the pre-tightening torque of the return torsion spring 53, the metering plate 52 flips downwards around the second rotating shaft 51, allowing the material on the metering plate 52 to quickly slide into the interior of the mixing chamber 2 under gravity. After the material is discharged, the gravitational torque on the metering plate 52... When the gravitational torque disappears, the reset torsion spring 53 releases its elastic potential energy and drives the second rotating shaft 51 to rotate in the opposite direction, causing the metering plate 52 to return to the closed position, waiting for the next feeding. During this process, the metering plate 52 automatically controls the opening timing according to the weight of the material accumulated on it. It can realize the sensing and release of the weight of each batch of material without the need for external sensors and electrical control. The structure is simple and the response is fast. At the same time, each opening of the metering plate 52 is triggered when the material accumulates to the same weight threshold, thereby ensuring that the quality of the material released in a single batch has good consistency.

[0035] Please see Figures 4 to 6 The precision metering component 5 also includes a torsion housing 54, which is disposed on one side of the mounting bracket 3 and is threadedly connected to the mounting bracket 3. One end of a spring 55 is fixedly connected to one side of the inside of the torsion housing 54, and the other end of the spring 55 is fixedly connected to a circular top plate 56. Multiple sets of push plates 57 are fixedly connected to one side of the circular top plate 56 and are slidably connected to the inside of the torsion housing 54. A limit plate 58 is provided on one side of the push plate 57 and is fixedly connected to the mounting bracket 3. A pressure groove 59 is opened inside the torsion housing 54, and multiple sets of extrusion balls 510 are slidably connected inside the pressure groove 59. One side of a friction plate 511 abuts inside the torsion housing 54, and the other side of the friction plate 511 abuts against the second rotating shaft 51.

[0036] Specifically, the working principle of this section is as follows: When it is necessary to adjust the opening sensitivity or reset speed of the metering plate 52, the operator only needs to rotate the torsion shell 54. Since the torsion shell 54 is connected to the mounting bracket 3 by threads, the torsion shell 54 will move axially into the mounting bracket 3 while rotating. When the torsion shell 54 moves, it pushes the spring 55 inside, and the spring 55 then transmits the thrust to the annular top plate 56. The annular top plate 56 drives multiple sets of push plates 57 to slide inward synchronously. During the sliding process, the push plates 57 push the pressure groove. The extrusion ball 510 inside the pressure groove 59, being a centripetal smooth arc groove, gradually moves towards the friction plate 511 as it slides along the groove, thus applying greater extrusion force to the friction plate 511. After the friction plate 511 is compressed, the normal pressure between it and the second rotating shaft 51 increases, thereby increasing the frictional torque experienced by the second rotating shaft 51 when it rotates. Conversely, when the torsion shell 54 is rotated in the opposite direction, the torsion shell 54 retracts outward, the spring 55 extends, and drives the annular top plate 56 and push plate 57 to retract, thus extruding the extrusion ball. 510 slides in the opposite direction along the pressure groove 59 and moves away from the friction plate 511. The positive pressure of the friction plate 511 on the second rotating shaft 51 decreases, and the friction torque decreases accordingly. During this process, the limiting plate 58 limits the sliding stroke of the push plate 57 to prevent the push plate 57 from moving excessively, causing the extrusion ball 510 to come out or the friction plate 511 to be damaged due to excessive force. At the same time, the setting of the spring 55 allows the adjustment force of the torsion shell 54 to be flexibly transmitted, avoiding jamming or wear caused by rigid pushing. With the cooperation of the above structures, the operator can steplessly adjust the opening threshold and reset damping of the metering plate 52 by simply rotating the torsion shell 54 according to the flowability differences of different materials. This allows the metering plate 52 to adapt to dry-mixed mortar raw materials with different bulk densities and flow characteristics without stopping the machine to replace any elastic elements. This improves the versatility and adaptability of the device to different materials and greatly reduces the operational difficulty and time cost of adjusting the proportioning accuracy. At the same time, the purely mechanical adjustment method does not rely on external electrical control and sensors, and has higher reliability and durability in dusty environments.

[0037] Please see Figure 7 and Figure 8The mixing component 6 includes a second drive motor 61, which is fixedly connected to one side of the top of the quantitative mixer base 1. A first pulley 62 is fixedly sleeved on the outer side of the output end of the second drive motor 61. A third rotating shaft 63 is provided on one side of the second drive motor 61 and is movably sleeved on one side of the top of the quantitative mixer base 1. A second pulley 64 is fixedly sleeved on the outer side of one end of the third rotating shaft 63. The second pulley 64 and the first pulley 62 are driven by a belt. A first gear 65 is fixedly sleeved on the outer side of the third rotating shaft 63. A gear 65 is provided on one side of the third rotating shaft 63. A fourth rotating shaft 66 is movably sleeved on one side of the top of the quantitative mixer base 1. A second gear 67 is fixedly sleeved on the outer side of the fourth rotating shaft 66. A first gear 65 is meshed with the second gear 67. A third gear 68 is provided on one side of the second gear 67. The third gear 68 is fixedly sleeved on the outer side of the fourth rotating shaft 66. A fifth rotating shaft 69 is provided on one side of the fourth rotating shaft 66. The fifth rotating shaft 69 is movably sleeved on one side of the top of the quantitative mixer base 1. A fourth gear 610 is fixedly sleeved on the outer side of the fifth rotating shaft 69. The fourth gear 610 is meshed with the third gear 68.

[0038] Specifically, the working principle of this section is as follows: The second drive motor 61 is started, and its output drives the first pulley 62 to rotate. The first pulley 62 transmits power to the second pulley 64 via a belt. The second pulley 64 drives the third shaft 63 to rotate. The third shaft 63 drives the first gear 65, which is fixedly sleeved on its outer side, to rotate synchronously. The first gear 65 transmits power to the fourth shaft 66 through meshing with the second gear 67. When the fourth shaft 66 rotates, it drives the third gear 68 on its outer side to rotate. The third gear 68 transmits power to the fifth shaft 69 through meshing with the fourth gear 610. After the fifth shaft 69 rotates, it drives the sixth shaft 612 to rotate through the meshing of the fifth gear 611 and the sixth gear 613. Finally, the sixth shaft 612 drives the multiple sets of stirring plates 614 fixedly connected to its outer side to rotate inside the mixing chamber 2, thus controlling the mixing of the mixture. The various raw materials in mixing chamber 2 are thoroughly mixed. During this process, the first stage of speed reduction is achieved through the belt drive between the first pulley 62 and the second pulley 64. Then, through the multi-stage gear meshing transmission of the first gear 65 and the second gear 67, the third gear 68 and the fourth gear 610, and the fifth gear 611 and the sixth gear 613, the high-speed rotation of the second drive motor 61 is gradually reduced to a speed suitable for mixing and the output torque is increased. This ensures that the mixing plate 614 receives sufficient mixing force to handle materials with different viscosities and bulk densities. At the same time, the belt drive can absorb the impact load when the motor starts, avoiding damage to the gears from direct impact, thus improving the stability and service life of the transmission system. The synchronous rotation of multiple sets of mixing plates 614 ensures that the materials inside the mixing chamber 2 are evenly turned over and sheared, thereby achieving efficient and uniform mixing of the various components of the dry-mixed mortar.

[0039] Please see Figure 7 and Figure 8 The mixing component 6 also includes a fifth gear 611, which is fixedly sleeved on the outside of the fourth rotating shaft 66 and the fifth rotating shaft 69 respectively. The two sets of fifth gears 611 mesh with each other. The two sides inside the mounting bracket 3 are rotatably connected to a sixth rotating shaft 612. A sixth gear 613 is fixedly sleeved on the outside of the sixth rotating shaft 612. The sixth gear 613 meshes with the fifth gear 611. Multiple sets of stirring plates 614 are fixedly connected to the outside of the sixth rotating shaft 612.

[0040] Specifically, the working principle of this section is as follows: The fourth rotating shaft 66 and the fifth rotating shaft 69 rotate synchronously under the drive of the second drive motor 61. The fourth rotating shaft 66 and the fifth rotating shaft 69 respectively drive the two sets of fifth gears 611 fixedly sleeved on their outer sides to rotate. Since the two sets of fifth gears 611 mesh with each other, they always maintain synchronous rotation in opposite directions. Each set of fifth gears 611 meshes with the sixth gear 613 on the corresponding side, thereby transmitting power to the sixth rotating shafts 612 on both sides inside the mounting frame 3. When the sixth rotating shaft 612 rotates, it drives the multiple sets of stirring plates 614 fixedly connected to its outer side to rotate synchronously inside the mixing chamber 2, so as to fully stir the various raw materials falling into the mixing chamber 2. During the mixing process, the meshing of two sets of fifth gears 611 causes the sixth rotating shafts 612 on both sides to rotate in opposite directions, thereby driving the mixing plates 614 on both sides to form a convection mixing in the mixing chamber 2. This causes the materials to flow cross-flow and shear within the mixing chamber 2, effectively preventing the materials from stratifying or accumulating in dead corners during the mixing process. This significantly improves the mixing uniformity and efficiency. At the same time, the multiple sets of mixing plates 614 are distributed along the axial direction of the sixth rotating shaft 612, further expanding the mixing coverage area and ensuring that the materials in each area of ​​the mixing chamber 2 can be fully turned over and mixed. This achieves efficient and uniform mixing of multiple raw material components in dry-mixed mortar.

[0041] Please see Figure 6 The pressure groove 59 is a centripetal smooth arc groove. When the push plate 57 applies a pushing force to the extrusion ball 510, the extrusion ball 510 slides along the inner wall curve of the pressure groove 59. After moving, it slowly approaches the friction plate 511, thereby increasing the pressure on the friction plate 511. In turn, the pressure on the outer surface of the second rotating shaft 51 increases indirectly through the friction plate 511. When the normal pressure on the contact surface of the friction plate 511 increases, the frictional torque that hinders rotation increases, which ultimately results in a decrease in rotational flexibility and a significant increase in rotational resistance.

[0042] Please see Figure 6 The torsion shell 54 has a stepped hollow structure with gaps on both sides of the inner step. The outer gap is used for threaded connection with the mounting bracket 3, and the inner gap is used to allow for displacement space of the annular top plate 56 and the push plate 57, so as to avoid interfering with the normal operation of the transmission components.

[0043] In summary:

[0044] During operation, the material is poured in from the feed hopper 44. The material will temporarily stop in the discharge channel due to the obstruction of the metering wheel 43. At this time, the material will fill the trough of the metering wheel 43 due to gravity. Then the first drive motor 41 starts and drives the first rotating shaft 42 to rotate, so that the metering wheel 43 delivers the material into the mixing chamber 2 in a metered manner, thus realizing the metered feeding.

[0045] During the feeding process, there may be situations where the proportion of the mixed materials needs to be fine-tuned. The material falls into the feed funnel 44 and is initially divided by volume in the feed trough of the metering wheel 43. At this stage, the metering wheel 43 feeds the material into the feeding channel in fixed volume units, which is the reference quantity for the "proportion". The material then falls onto the metering plate 52 controlled by the precision metering component 5. At this time, the metering plate 52 is not a simple open and close valve, but a dynamic weighing sensing element. The gravitational torque generated by the mass of the material accumulated on it is dynamically balanced with the preload torque of the return torsion spring 53 and the damping force provided by the friction plate 511. When the mass of the material reaches the preset critical value, that is, the weight corresponding to the required proportion accuracy, the gravitational torque overcomes the resistance torque, and the metering plate 52 instantly rotates to the fully open state, so that the material falls quickly into the mixing chamber 2. During this process, the friction adjustment mechanism torsional housing 54, spring 55, push plate 57 and extrusion ball 510 The function is not to change the total mass of a single feeding, but to precisely control the opening threshold and reset rhythm of the metering plate 52 by adjusting the positive pressure of the friction plate 511 on the second rotating shaft 51. Specifically, by changing the friction torque, the weight of material required to start the rotation of the metering plate 52 can be finely adjusted, thereby compensating for the weight deviation caused by the fluctuation of material density and achieving precise control of the "weighing" process. At the same time, after the material is discharged, the metering plate 52 slowly resets under the action of the reset torsion spring 53. At this time, adjusting the friction force can control its closing speed, that is, control the start time of the next feeding and metering, avoid the instantaneous accumulation of material in the mixing chamber 2, and ensure that the feeding rhythm is uniform and controllable. Finally, the constant output of the proportion base is achieved through the metering wheel 43, and the opening threshold of the metering plate 52 is dynamically finely adjusted through the precision metering component 5, thereby achieving precise metering of the mass of each material in continuous operation and achieving high-precision proportioning of dry-mixed mortar raw materials.

[0046] After the material enters the mixing chamber 2, the second drive motor 61 is started to drive the second pulley 64 to rotate. The rotation of the second pulley 64 drives the third rotating shaft 63 to rotate. Through multiple sets of gear transmission, the sixth rotating shaft 612 is driven to rotate synchronously. The rotation of the sixth rotating shaft 612 drives the stirring plate 614 to rotate, thus mixing the material entering the mixing chamber 2.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A mortar raw material proportioning and weighing device based on dry-mixed mortar, comprising a quantitative mixer base (1), characterized in that, The top of the quantitative mixer base (1) is fixedly connected to a mixing chamber (2), and both sides of the top of the mixing chamber (2) are fixedly connected to mounting frames (3). The top of the mounting frame (3) is provided with a quantitative output component (4). The mounting bracket (3) is equipped with a precision metering component (5), and the quantitative mixer base (1) is equipped with a mixing component (6) on one side of its top.

2. The mortar raw material proportioning and weighing device based on dry-mixed mortar as described in claim 1, characterized in that, The quantitative output component (4) includes a first drive motor (41), which is fixedly connected to the top of the mounting frame (3). A first rotating shaft (42) is fixedly connected to the output end of the first drive motor (41). A quantitative wheel (43) is fixedly connected to the outer side of the first rotating shaft (42). A feeding funnel (44) is sleeved on the outer side of the quantitative wheel (43). A protective plate (45) is fixedly connected to the outer side of the feeding funnel (44). Both the protective plate (45) and the feeding funnel (44) are fixedly connected to the mounting frame (3). A first baffle plate (46) is provided on one side of the bottom of the feeding funnel (44), and a second baffle plate (47) is provided on the other side of the bottom of the feeding funnel (44). The first baffle plate (46) and the second baffle plate (47) are both fixedly connected to the mounting frame (3). The inner walls of the first baffle plate (46), the second baffle plate (47) and the mounting frame (3) together form a material drop channel for temporarily storing raw materials, so that the material can fall into the interior of the mixing chamber (2) through the channel formed by the first baffle plate (46), the second baffle plate (47) and the mounting frame (3).

3. The mortar raw material proportioning and weighing device based on dry-mixed mortar as described in claim 1, characterized in that, The precision metering component (5) includes a second rotating shaft (51), which is rotatably connected to the inside of the mounting frame (3). A metering plate (52) is fixedly sleeved on the outside of the second rotating shaft (51), and a reset torsion spring (53) is fixedly sleeved on the outside of one end of the second rotating shaft (51). The reset torsion spring (53) is fixedly connected to the mounting frame (3).

4. The mortar raw material proportioning and weighing device based on dry-mixed mortar as described in claim 1, characterized in that, The precision metering component (5) also includes a torsion housing (54), which is disposed on one side of the mounting bracket (3). The torsion housing (54) is threadedly connected to the mounting bracket (3). One end of a spring (55) is fixedly connected to one side of the inside of the torsion housing (54), and the other end of the spring (55) is fixedly connected to a circular top plate (56). Multiple sets of push plates (57) are fixedly connected to one side of the circular top plate (56). The push plates (57) are slidably connected to the inside of the torsion housing (54). A limit plate (58) is provided on one side of the push plate (57). The limit plate (58) is fixedly connected to the mounting bracket (3). A pressure groove (59) is opened inside the torsion housing (54). Multiple sets of extrusion balls (510) are slidably connected inside the pressure groove (59). One side of a friction plate (511) abuts inside the torsion housing (54), and the other side of the friction plate (511) abuts against the second rotating shaft (51).

5. The mortar raw material proportioning and weighing device based on dry-mixed mortar as described in claim 1, characterized in that, The mixing component (6) includes a second drive motor (61), which is fixedly connected to one side of the top of the quantitative mixer base (1). A first pulley (62) is fixedly sleeved on the outer side of the output end of the second drive motor (61). A third rotating shaft (63) is provided on one side of the second drive motor (61). The third rotating shaft (63) is movably sleeved on one side of the top of the quantitative mixer base (1). A second pulley (64) is fixedly sleeved on the outer side of one end of the third rotating shaft (63). The second pulley (64) and the first pulley (62) are driven by a belt. A first gear (65) is fixedly sleeved on the outer side of the third rotating shaft (63). A fourth gear is provided on one side of the third rotating shaft (63). Shaft (66), the fourth rotating shaft (66) is movably sleeved on one side of the top of the quantitative mixer base (1), the outer side of the fourth rotating shaft (66) is fixedly sleeved with a second gear (67), the first gear (65) meshes with the second gear (67), a third gear (68) is provided on one side of the second gear (67), the third gear (68) is fixedly sleeved on the outer side of the fourth rotating shaft (66), a fifth rotating shaft (69) is provided on one side of the fourth rotating shaft (66), the fifth rotating shaft (69) is movably sleeved on one side of the top of the quantitative mixer base (1), the outer side of the fifth rotating shaft (69) is fixedly sleeved with a fourth gear (610), the fourth gear (610) meshes with the third gear (68).

6. The mortar raw material proportioning and weighing device based on dry-mixed mortar as described in claim 1, characterized in that, The mixing component (6) also includes a fifth gear (611), which is fixedly sleeved on the outside of the fourth shaft (66) and the fifth shaft (69), respectively. The two sets of fifth gears (611) mesh with each other. The two sides inside the mounting bracket (3) are rotatably connected to a sixth shaft (612). A sixth gear (613) is fixedly sleeved on the outside of the sixth shaft (612). The sixth gear (613) meshes with the fifth gear (611). Multiple sets of stirring plates (614) are fixedly connected to the outside of the sixth shaft (612).

7. The mortar raw material proportioning and weighing device based on dry-mixed mortar as described in claim 1, characterized in that, The pressure groove (59) is a centripetal smooth arc groove. When the push plate (57) applies a pushing force to the extrusion ball (510), the extrusion ball (510) slides along the inner wall curve of the pressure groove (59), causing it to slowly approach the friction plate (511) after moving, thereby increasing the pressure on the friction plate (511). This indirectly increases the pressure on the outer surface of the second rotating shaft (51) through the friction plate (511). When the positive pressure on the contact surface of the friction plate (511) increases, the friction torque that hinders rotation increases, ultimately resulting in a decrease in rotational flexibility and a significant increase in rotational resistance.

8. The mortar raw material proportioning and weighing device based on dry-mixed mortar as described in claim 1, characterized in that, The torsion shell (54) is a stepped hollow structure with gaps on both sides of the inner step. The outer gap is used for threaded connection with the mounting bracket (3), and the inner gap is used to reserve displacement space for the annular top plate (56) and the push plate (57) to avoid interfering with the normal operation of the transmission components.

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