Premixed concrete proportioning and mixing device

Abstract

The utility model discloses a premixed concrete proportioning and mixing device which comprises a machine body and supporting legs, and a plurality of groups of raw material boxes are uniformly mounted at the top of the machine body. By adopting the wear-resistant flexible pipes, the screw rods and the blanking seats, during operation, when raw materials are added and discharged, the falling raw materials slide through the corresponding wear-resistant flexible pipes and are finally discharged from the corresponding blanking seats, and due to the fact that different raw materials are discharged through the different blanking seats, the raw materials are discharged through the different blanking seats, so that the production efficiency is greatly improved. The discharging bases can move in the machine body in a reciprocating mode through operation of the lead screw, then the raw materials can be evenly scattered in different positions in the machine body, the raw materials are distributed more evenly, meanwhile, a certain height difference exists between the multiple sets of discharging bases, and therefore the raw materials can be covered one by one when falling, and the raw materials are evenly distributed. The mixing device realizes primary mixing operation, reduces the subsequent mixing difficulty, is convenient for better mixing treatment, and has the advantages of good mixing effect and uniform blanking.

Description

Technical Field

[0001] This utility model relates to the field of ready-mixed concrete technology, and more specifically, to a ready-mixed concrete proportioning and mixing device. Background Technology

[0002] Ready-mixed concrete refers to a concrete mixture made of cement, aggregates, water, and, as needed, admixtures and mineral admixtures, mixed in a certain proportion at a batching plant, and then sold and transported to the place of use within a specified time by transport vehicles.

[0003] The existing publicly available technology, application number CN202420874054.X, describes a pre-mixed concrete raw material proportioning device. When mixing the proportioned concrete raw materials, the operator first drains an appropriate amount of water into a water tank, then turns on the motor to make the mixing rod stir the concrete raw materials. At the same time, the mixing rod drives the reciprocating screw to rotate, and the reciprocating screw causes the movable plate to move the sealing block up and down. In this way, the arc-shaped pipe indirectly drains water into the annular pipe, and the annular pipe indirectly drains water into the concrete raw materials being mixed through the drain hole, so that the concrete raw materials can be evenly mixed with water and will not be dry on one side and wet on the other.

[0004] However, the aforementioned patent still has certain drawbacks in its use: during operation, multiple raw materials are usually added to the device together, resulting in the initial accumulation of multiple raw materials, which increases the subsequent mixing time and reduces the efficiency of the proportioning, making it difficult to mix and use effectively. At the same time, multiple raw materials are mostly added from corresponding areas, resulting in an unsatisfactory initial mixing degree and obvious stratification, which increases the difficulty and intensity of subsequent mixing, making it difficult to carry out mixing production more quickly. Overall, its use is not ideal.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a pre-mixed concrete proportioning and mixing device, which has the advantages of good mixing effect, uniform material feeding, and controllable material feeding, thereby solving the problems mentioned in the background technology.

[0008] (II) Technical Solution

[0009] To achieve the advantages of good mixing effect, uniform feeding, and controllable feeding, the specific technical solution adopted by this utility model is as follows:

[0010] A premixed concrete proportioning and mixing device includes a machine body and supporting legs. Several sets of raw material bins are evenly installed on the top of the machine body. An adjustment cavity is opened inside one side of each raw material bin. A spring is installed inside the adjustment cavity, and a connecting plate is fixedly installed at the bottom of the spring. The connecting plate is slidably connected to the adjustment cavity. One end of the connecting plate passes through one side of the adjustment cavity and is connected to a sealing sheet. The bottom of the sealing sheet is in contact with the adjustment plate. The adjustment plate is slidably connected to the raw material bins. A cylinder is installed at one end of the adjustment plate. A wear-resistant flexible tube is installed at the bottom of the raw material bins. Several sets of drive boxes are evenly installed in the middle of the machine body. A lead screw is installed inside each drive box. A movable seat is sleeved around the lead screw. Flexible sheets are symmetrically installed on both sides of the movable seat. The flexible sheets are connected to the bottom sides of the drive boxes. One end of the lead screw passes through one side of the machine body and is connected to a first motor. A discharge seat is installed at the bottom of the movable seat and is connected to the wear-resistant flexible tube.

[0011] Furthermore, a drive shaft is installed at the middle of the bottom of the machine body. One end of the drive shaft passes through one side of the machine body and is connected to a second motor. A scraper and stirring blades are installed on the surface of the drive shaft, and the scraper is in contact with the inner wall of the machine body.

[0012] Furthermore, support legs are symmetrically installed on both sides of the bottom of the machine body.

[0013] Furthermore, discharge pipes are symmetrically installed on both sides of the bottom center of the machine body.

[0014] Furthermore, a material collection hopper is installed at the bottom of the inside of the raw material box.

[0015] Furthermore, the drive box is arranged longitudinally, and multiple sets of the feeding seats are staggered with the wear-resistant flexible tubes.

[0016] Furthermore, the top of the adjustment plate is provided with a ramp.

[0017] Furthermore, the adjustment plate has a trapezoidal structure.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, the present invention provides a premixed concrete proportioning and mixing device, which has the following beneficial effects:

[0020] (1) This utility model adopts wear-resistant flexible tubes, screws, and feeding seats. During operation, when the raw materials are added and discharged, the falling raw materials will slide through the corresponding wear-resistant flexible tubes and finally be discharged from the corresponding feeding seats. Since different raw materials are discharged through different feeding seats, and the feeding seats can move back and forth inside the machine body through the operation of the screw, the raw materials can be evenly spread in different positions inside the machine body, making the distribution of raw materials more uniform. At the same time, there is a certain height difference between multiple feeding seats, so the raw materials can be covered one by one when they fall, realizing the initial mixing operation, reducing the difficulty of subsequent mixing, and facilitating better mixing treatment. It has the advantages of good mixing effect and uniform feeding.

[0021] (2) By using a cylinder and an adjusting plate, the cylinder at a specified position can be operated according to the different amounts of raw materials to be added per unit time during operation. This allows the cylinder to drive the adjusting plate at the corresponding position to move outward a certain distance, thereby changing the opening size between the adjusting plate and the inner wall of the raw material box, thus changing the amount of raw material falling, which is more convenient for subsequent production and has the advantage of controllable material feeding. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a premixed concrete proportioning and mixing device proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the internal layout of the raw material box of this utility model;

[0025] Figure 3 This is a schematic diagram of the drive box of this utility model;

[0026] Figure 4 This is a schematic diagram of the connection between the connecting plate and the sealing sheet of this utility model;

[0027] Figure 5 This is a schematic diagram showing the connection between the wear-resistant flexible tube and the feeding seat of this utility model.

[0028] In the picture:

[0029] 1. Machine body; 2. Drive box; 3. Lead screw; 4. Flexible sheet; 5. Raw material box; 6. Adjusting plate; 7. Connecting plate; 8. Cylinder; 9. Adjusting chamber; 10. Spring; 11. Sealing sheet; 12. Feed hopper; 13. Wear-resistant flexible tube; 14. First motor; 15. Moving seat; 16. Discharge seat; 17. Scraper; 18. Mixing blade; 19. Support leg; 20. Discharge pipe; 21. Second motor; 22. Drive shaft. Detailed Implementation

[0030] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0031] According to an embodiment of the present invention, a premixed concrete proportioning and mixing device is provided.

[0032] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-5 As shown, a premixed concrete proportioning and mixing device according to an embodiment of the present invention includes a body 1 and supporting legs 19. Several sets of raw material boxes 5 are evenly installed on the top of the body 1. An adjustment cavity 9 is opened inside one side of each raw material box 5. A spring 10 is installed inside the adjustment cavity 9. A connecting plate 7 is fixedly installed at the bottom of the spring 10. The connecting plate 7 is slidably connected to the adjustment cavity 9. One end of the connecting plate 7 passes through the adjustment cavity 9 and is connected to a sealing sheet 11. The bottom of the sealing sheet 11 is in contact with an adjustment plate 6. The adjustment plate 6 is slidably connected to the raw material boxes 5. A cylinder 8 is installed at one end of the adjustment plate 6. A wear-resistant flexible tube 13 is installed at the bottom of the raw material boxes 5. Several sets of drive boxes 2 are evenly installed in the middle of the interior of the body 1. A lead screw 3 is installed inside the machine. A movable seat 15 is sleeved around the lead screw 3. Flexible plates 4 are symmetrically installed on both sides of the movable seat 15. The flexible plates 4 are connected to the bottom sides of the drive box 2. One end of the lead screw 3 passes through one side of the machine body 1 and is connected to the first motor 14. A feeding seat 16 is installed at the bottom of the movable seat 15. The feeding seat 16 is connected to the wear-resistant flexible tube 13. The flexible plates 4 are designed to extend and retract when the movable seat 15 moves, thereby continuously sealing the bottom of the drive box 2 to prevent dust and other particles from entering the position of the lead screw 3 during stirring, ensuring the cleanliness of the lead screw 3 and avoiding affecting its operation. At the same time, the top of the drive box 2 is provided with a slope to facilitate the dispersion of the fed raw materials and reduce residue.

[0033] In one embodiment, a drive shaft 22 is installed at the middle of the bottom of the machine body 1. One end of the drive shaft 22 passes through one side of the machine body 1 and is connected to the second motor 21. A scraper 17 and a stirring blade 18 are installed on the surface of the drive shaft 22, and the scraper 17 is in contact with the inner wall of the machine body 1. The stirring blade 18 and the scraper 17 are common stirring structures, so they will not be described in detail.

[0034] In one embodiment, support legs 19 are symmetrically installed on both sides of the bottom of the body 1, and the device can be supported by the support legs 19.

[0035] In one embodiment, discharge pipes 20 are symmetrically installed on both sides of the bottom center of the machine body 1. The discharge pipes 20 are designed to discharge the mixed concrete, thereby facilitating subsequent use.

[0036] In one embodiment, a material collection hopper 12 is installed at the bottom of the inside of the material box 5. The material collection hopper 12 is designed to facilitate the collection of raw materials, so that they can enter the wear-resistant flexible tube 13 more fully, and thus facilitate subsequent addition and use.

[0037] In one embodiment, the drive box 2 is arranged longitudinally, and multiple sets of feeding seats 16 are staggered with wear-resistant flexible tubes 13. The staggered arrangement of the wear-resistant flexible tubes 13 is to avoid entanglement between multiple sets of tubes when the feeding seats 16 move. The staggered arrangement can reduce the probability of tube entanglement. At the same time, since the interval between each set of wear-resistant flexible tubes 13 and the feeding seats 16 is different, the overall length of the tubes will also be adjusted accordingly, thereby further reducing the probability of tube entanglement. In order to ensure that the wear-resistant flexible tubes 13 can smoothly discharge raw materials in different tilt states, a metal frame, such as a metal ring or metal strip, can be installed in the tube.

[0038] In one embodiment, the top of the regulating plate 6 is provided with a ramp. The ramp is designed to facilitate the sliding of raw materials, thereby facilitating subsequent proportioning and mixing operations.

[0039] In one embodiment, the adjusting plate 6 has a trapezoidal structure. The structure of the adjusting plate 6 is designed to ensure that its surface can be smoothly sloped, thereby ensuring that the raw material can still slide smoothly when the adjusting plate 6 moves, and ensuring that the raw material falls and is added smoothly.

[0040] Working Principle: In actual use, various raw materials required for concrete production can be added to their respective raw material bins 5. Then, based on the amount of raw materials needed per unit time, the cylinder 8 at a designated position is operated. This causes the cylinder 8 to move the adjusting plate 6 outward a certain distance, changing the opening size between the adjusting plate 6 and the inner wall of the raw material bin 5. The raw materials then fall, sliding through the corresponding wear-resistant flexible tube 13 and finally being discharged from the corresponding discharge seat 16. Since different raw materials are discharged through different discharge seats 16, and the discharge seat 16 can reciprocate within the machine body 1 via the operation of the screw 3, the raw materials can be evenly distributed at different locations within the machine body 1. This results in a more uniform distribution of raw materials. Furthermore, the height difference between the multiple feeding seats 16 allows for individual covering of the raw materials as they fall, achieving initial mixing and reducing the difficulty of subsequent mixing. The driving shaft 22 continuously rotates the mixing blades 18 as the raw materials fall, further agitating and mixing them. The scrapers 17 on both sides remove any raw materials adhering to the inner wall of the machine body 1, ensuring thorough mixing, reducing residue, and improving overall mixing quality. After mixing, the pre-mixed concrete is discharged through the discharge pipe 20 for convenient use. The device as a whole offers advantages such as good mixing effect, uniform feeding, and controllable feeding.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ready-mixed concrete proportioning and mixing device, comprising a body (1) and supporting legs (19), characterized in that, Several sets of raw material boxes (5) are evenly installed on the top of the machine body (1). An adjustment cavity (9) is opened inside one side of the raw material box (5). A spring (10) is installed inside the adjustment cavity (9). A connecting plate (7) is fixedly installed at the bottom of the spring (10). The connecting plate (7) is slidably connected to the adjustment cavity (9). One end of the connecting plate (7) passes through the adjustment cavity (9) and is connected to a sealing plate (11). The bottom of the sealing plate (11) is in contact with the adjustment plate (6). The adjustment plate (6) is slidably connected to the raw material box (5). A cylinder (8) is installed at one end of the adjustment plate (6). A wear-resistant flexible tube (13) is installed at the bottom of the box (5). Several sets of drive boxes (2) are evenly installed in the middle of the machine body (1). A lead screw (3) is installed inside the drive box (2). A movable seat (15) is sleeved on the outer periphery of the lead screw (3). Flexible sheets (4) are symmetrically installed on both sides of the movable seat (15). The flexible sheets (4) are connected to the bottom sides of the drive box (2). One end of the lead screw (3) passes through one side of the machine body (1) and is connected to the first motor (14). A feeding seat (16) is installed at the bottom of the movable seat (15). The feeding seat (16) is connected to the wear-resistant flexible tube (13).

2. The ready-mixed concrete proportioning and mixing device according to claim 1, characterized in that, A drive shaft (22) is installed at the middle of the bottom of the machine body (1). One end of the drive shaft (22) passes through one side of the machine body (1) and is connected to the second motor (21). A scraper (17) and a stirring blade (18) are installed on the surface of the drive shaft (22), and the scraper (17) is in contact with the inner wall of the machine body (1).

3. The ready-mixed concrete proportioning and mixing device according to claim 1, characterized in that, Support legs (19) are symmetrically installed on both sides of the bottom of the body (1).

4. The ready-mixed concrete proportioning and mixing device according to claim 1, characterized in that, The machine body (1) has discharge pipes (20) symmetrically installed on both sides of the bottom middle.

5. The ready-mixed concrete proportioning and mixing device according to claim 1, characterized in that, A material collection hopper (12) is installed at the bottom of the inside of the raw material box (5).

6. The ready-mixed concrete proportioning and mixing device according to claim 1, characterized in that, The drive box (2) is arranged longitudinally, and multiple sets of the feeding seats (16) are staggered with the wear-resistant flexible tube (13).

7. A ready-mixed concrete proportioning and mixing device according to claim 1, characterized in that, The top of the regulating plate (6) is provided with a slope.

8. A ready-mixed concrete proportioning and mixing device according to claim 1, characterized in that, The regulating plate (6) has a trapezoidal structure.

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