Concrete production feeding device

Abstract

The utility model discloses a loading device for concrete preparation relates to concrete production technical field, including installation jar, is equipped with transmission pipe in communication on the installation jar, the inside sliding of installation jar is equipped with screening board, the cooperation of second spiral board is equipped with at the discharge end of installation jar, second spiral board fixedly is established in installation shaft one end, is equipped with the mechanism of shaking on the installation shaft, is equipped with the mechanism of stirring on the adapter pipe. The utility model discloses through setting up screening board in the inside installation jar, makes the agglomerated raw material or impurity carries out screening, and through the stirring pipe, the raw material of the upper end of screening board is laid flat and the cooperation of the ejector rod and the guide block makes the screening board carry out intermittent shaking, thereby increases the screening effect of screening board to raw material, through setting up the discharge pipe and the crushing roller, makes can crush the raw material of screening out larger, and the raw material after crushing is reflowed to the inside material box, makes repeatedly screening to raw material.

Description

Technical Field

[0001] This utility model relates to the field of concrete production technology, specifically to a feeding device for concrete preparation. Background Technology

[0002] Concrete is a general term for engineering composite materials that bind aggregates together with cementing materials. The term "concrete" usually refers to cement concrete, which uses cement as the cementing material, sand and gravel as aggregates, and water (which may contain admixtures and additives) in a certain proportion, and is obtained through mixing. However, with the widespread use of concrete, recycled concrete is often added to existing concrete to increase its usability. Recycled concrete refers to new concrete made by crushing, washing, and grading waste concrete blocks, mixing them with gradation materials in a certain proportion, partially or completely replacing natural aggregates such as sand and gravel (mainly coarse aggregates), and then adding cement, water, etc. During concrete production, various feeding devices are used to transport and add various raw materials into the mixing tank for mixing.

[0003] Most existing feeding devices only have the function of feeding materials and are not convenient for filtering impurities in the conveyed materials. For example, sand may be mixed with larger stones or shells and other impurities, which will affect the strength of the building in actual use.

[0004] Based on this, a concrete preparation feeding device is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a feeding device for concrete preparation, so as to solve the problem that the feeding device in the background art is not convenient for screening materials.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A concrete preparation feeding device includes an installation tank, a transmission pipe connected to the installation tank, a fixed shaft rotatably mounted inside the transmission pipe, a first spiral plate fixedly mounted on the fixed shaft, the fixed shaft being fixedly connected to the output end of a first motor, the first motor being fixedly mounted at one end of the transmission pipe, a material box connected to the transmission pipe, a screening plate slidingly mounted inside the installation tank, a limiting ring fixedly mounted at the bottom end of the screening plate, a plurality of limiting grooves arranged in a circular array on the limiting ring, a limiting block slidingly mounted in each limiting groove, the limiting block being fixedly mounted inside the installation tank, a second spiral plate fitted at the discharge end of the installation tank, the second spiral plate being fixedly mounted at one end of the installation shaft, a transfer pipe sleeved at the other end of the installation shaft, a shaking mechanism for increasing the screening effect of the screening plate on the installation shaft, and a material-feeding mechanism for agitating the material at the upper end of the screening plate for screening on the transfer pipe.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative embodiment: the feeding mechanism includes two symmetrically arranged feeding tubes, each of which is fixedly equipped with a first support frame. The first support frame is fixedly mounted on a transfer tube. One end of the transfer tube is fitted with a first rotating joint, which is rotatably mounted in a mounting hole at the upper end of the mounting tank. The transfer tube has a polygonal cross-section. One end of the first rotating joint is fixedly equipped with a first gear, which meshes with a second gear. The second gear is fixedly mounted on the output end of a second motor. The second motor is fixedly mounted inside the mounting frame. The mounting frame is fixedly mounted at the upper end of the mounting tank. A return spring is provided between one end of the transfer tube and one end inside the first rotating joint.

[0010] In one alternative: the bottom end of the feeding tube is provided with several vent holes, and each feeding tube is connected to a connecting tube. The other end of each connecting tube is connected to the inside of the transfer tube. One end of the first rotating joint is provided with a vent hole, and one end of the first rotating joint is rotatably provided with a second rotating joint. The second rotating joint is connected to an external air supply component.

[0011] In one alternative: the upper end of the installation tank is provided with an installation groove, a dust filter screen is fixedly installed in the installation groove, a scraper is fixedly installed on the first rotary joint, and the upper end of the scraper is in close contact with the upper end of the interior of the installation tank.

[0012] In one alternative embodiment: the shaking mechanism includes a top rod and a guide block. A plurality of guide blocks are arranged in a circular array at the bottom of the screening plate. Two top rods are symmetrically arranged at corresponding positions of the guide blocks. Each top rod is fixedly provided with a fixing rod, and each fixing rod is fixedly provided on a mounting shaft. A tension spring is fixedly provided at the bottom of the screening plate. A limiting plate is fixedly provided at the other end of the tension spring. A buckle is symmetrically rotatably provided on the limiting plate. Two buckles are respectively fixedly provided on two fixing rods. A second support frame is rotatably provided on the mounting shaft. The second support frame is fixedly provided inside the mounting tank. The cross-section of the connection between the mounting shaft and the transfer pipe is polygonal.

[0013] In one alternative embodiment, each of the push rods is provided with a ball bearing at one end.

[0014] In one alternative embodiment: a discharge pipe is connected to the mounting tank, the discharge pipe is positioned above the screening plate, one end of the discharge pipe is connected to a crushing box, the crushing box is fixedly mounted on the mounting tank, crushing rollers are symmetrically rotated inside the crushing box, one end of each of the two crushing rollers is respectively fixed with a third gear and a fourth gear, the third gear and the fourth gear mesh with each other, the other end of the crushing roller's rotating shaft is fixedly connected to the output end of a third motor, the third motor is fixedly mounted on one side of the crushing box, and a return pipe is connected to the bottom of the crushing box, one end of the return pipe being located above the material box.

[0015] In one alternative: the bottom end of the discharge pipe is connected to a discharge pipe, and a switching baffle is slidably provided on the discharge pipe at a position corresponding to one end of the discharge pipe. The switching baffle is fixedly installed on the output end of the electric push rod, and the electric push rod is fixedly installed on the upper end of the discharge pipe.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention features a screening plate inside the installation tank. After the first spiral plate delivers concrete raw materials into the tank, the screening plate can screen the materials, removing lumpy materials or impurities. Simultaneously, a feeding pipe spreads the accumulated material on the upper part of the screening plate, and the top rod and guide block work together to intermittently vibrate the screening plate, increasing its screening effect. A discharge pipe and crushing rollers allow for the crushing of larger materials screened by the screening plate, and the crushed material is then returned to the material box for repeated screening. A switching baffle on the discharge pipe facilitates the direct discharge of impurities. This design makes the installation tank suitable for screening and feeding different concrete raw materials, thus increasing the practicality of the concrete preparation and feeding device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the crushing roller structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the first spiral plate structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the limiting ring structure of this utility model.

[0022] Figure 5 This is a schematic diagram of the transfer pipe structure of this utility model.

[0023] Figure 6 This is a schematic diagram of the guide block structure of this utility model.

[0024] Figure 7 This is a schematic diagram of the internal structure of the crushing box of this utility model.

[0025] Figure 8 This is a schematic diagram of the switching bracket structure of this utility model.

[0026] Figure reference numerals: 11 Installation tank, 12 Transfer pipe, 13 First spiral plate, 14 First motor, 15 Material box, 16 Screening plate, 17 Limiting ring, 18 Tension spring, 19 Top rod, 20 Guide block, 21 Installation shaft, 22 Second spiral plate, 23 Feeding pipe, 24 Transition pipe, 25 First rotary joint, 26 Return spring, 27 Second motor, 28 Dust filter, 29 Scraper, 30 Discharge pipe, 31 Switching baffle, 32 Electric push rod, 33 Discharge pipe, 34 Crushing box, 35 Crushing roller, 36 Third motor. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] Example 1

[0029] In one embodiment, such as Figures 1-8 As shown, a concrete preparation feeding device includes a mounting tank 11, a transmission pipe 12 connected to the mounting tank 11, a fixed shaft rotatably mounted inside the transmission pipe 12, a first spiral plate 13 fixedly mounted on the fixed shaft, the fixed shaft being fixedly connected to the output end of a first motor 14, the first motor 14 being fixedly mounted at one end of the transmission pipe 12, a material box 15 connected to the transmission pipe 12, a screening plate 16 slidingly mounted inside the mounting tank 11, a limiting ring 17 fixedly mounted at the bottom end of the screening plate 16, a plurality of limiting grooves arranged in a circular array on the limiting ring 17, and limiting blocks slidingly mounted in each limiting groove. The limiting block is fixed inside the installation tank 11. A second spiral plate 22 is provided at the discharge end of the installation tank 11. The second spiral plate 22 is fixed at one end of the installation shaft 21. A transfer pipe 24 is sleeved on the other end of the installation shaft 21. The installation shaft 21 is provided with a shaking mechanism to increase the screening effect of the screening plate 16. The transfer pipe 24 is provided with a material feeding mechanism to move the material on the upper end of the screening plate 16 for screening. The shaking mechanism causes the screening plate 16 to shake intermittently, thereby increasing the screening effect of concrete raw materials. The material feeding mechanism moves the material piled on the upper end of the screening plate 16, so that the material is screened evenly.

[0030] The feeding mechanism includes two symmetrically arranged feeding tubes 23, each with a first support frame fixedly mounted on it. The first support frame is fixedly mounted on a transfer tube 24. A first rotating joint 25 is sleeved at one end of each transfer tube 24 and rotatably mounted within a mounting hole at the upper end of the mounting tank 11. The transfer tube 24 has a polygonal cross-section. A first gear is fixedly mounted at one end of the first rotating joint 25, and a second gear meshes with the first gear. The second gear is fixedly mounted on the output end of a second motor 27, which is fixedly mounted inside the mounting frame. The mounting frame is fixedly mounted at the upper end of the mounting tank 11. A return spring is provided between one end of the transfer tube 24 and one end inside the first rotating joint 25. Spring 26, when in use, when concrete raw materials need to be fed, the raw materials are added into the material box 15 through the external feeding component, and then the first motor 14 is started. The output end of the first motor 14 drives the fixed shaft to rotate, and the fixed shaft drives the first spiral plate 13 to rotate, so that the raw materials in the material box 15 are transported into the installation tank 11 and fall onto the upper end of the screening plate 16. At the same time, the second motor 27 is started, and the output end of the second motor 27 drives the first rotary joint 25 to rotate. The first rotary joint 25 drives the feeding pipe 23 to rotate through the transfer pipe 24 and the first support frame. Since the feeding pipe 23 is in close contact with the upper end of the screening plate 16, the feeding pipe 23 spreads the raw materials on the upper end of the screening plate 16 flat, thereby increasing the screening effect of the screening plate 16 on the raw materials.

[0031] The bottom end of the feeding tube 23 is provided with several vent holes, and each feeding tube 23 is connected to a connecting tube. The other end of each connecting tube is connected to the inside of the transfer tube 24. One end of the first rotating joint 25 is provided with a vent hole, and one end of the first rotating joint 25 is rotatably connected to a second rotating joint. The second rotating joint is connected to an external air supply component. In use, when the first rotating joint 25 rotates, the external air supply component supplies gas into the first rotating joint 25. Subsequently, the gas enters the feeding tube 23 through the connecting tube, and the feeding tube 23 is discharged through several vent holes at the bottom, thereby cleaning the filter holes on the screening plate 16 and preventing the filter holes of the screening plate 16 from being blocked.

[0032] The upper end of the installation tank 11 is provided with an installation groove, and a dust filter 28 is fixedly installed in the installation groove. A scraper 29 is fixedly installed on the first rotary joint 25. The upper end of the scraper 29 is in close contact with the upper end of the interior of the installation tank 11. In use, when the gas is discharged through the vent at the bottom of the feeding tube 23, the gas is discharged through the dust filter 28. At the same time, the dust filter 28 filters the dust in the gas. When the first rotary joint 25 rotates, it drives the scraper 29 to rotate, thereby cleaning the dust attached to the bottom of the dust filter 28.

[0033] The shaking mechanism includes top rods 19 and guide blocks 20. A plurality of guide blocks 20 are arranged in a circular array at the bottom end of the screening plate 16. Two top rods 19 are symmetrically arranged at corresponding positions on the guide blocks 20. Each top rod 19 is fixedly equipped with a fixing rod, which is fixedly mounted on the mounting shaft 21. A tension spring 18 is fixedly mounted at the bottom end of the screening plate 16, and a limiting plate is fixedly mounted at the other end of the tension spring 18. The limiting plate is symmetrically equipped with buckles, and two buckles are respectively fixed to the two fixing rods. A second support frame is rotatably mounted on the mounting shaft 21 and fixedly mounted inside the mounting tank 11. The cross-section of the connection between the mounting shaft 21 and the adapter pipe 24 is polygonal. When the transfer pipe 24 rotates, it drives the mounting shaft 21 to rotate. The mounting shaft 21 drives the top rod 19 to rotate through two fixed plates. When one end of the top rod 19 is in close contact with the inclined surface of the guide block 20, the screening plate 16 slides inside the mounting tank 11. When the top rod 19 of the mounting tank 1 disengages from the guide block 20, the screening plate 16 returns to its initial position under the action of the tension spring 18. By intermittently shaking the screening plate 16, the screening effect of the screening plate 16 on the raw materials is increased. At the same time, one end of the transfer pipe 24 slides at one end of the first rotating joint 25, so that the bottom end of the feeding pipe 23 is always in close contact with the upper end of the screening plate 16, and the mounting shaft 21 drives the second spiral plate 22 to rotate, so that the mounting tank 11 can be uniformly fed.

[0034] Each of the push rods 19 is equipped with a ball bearing at one end, which helps to reduce wear between the push rod 19 and the guide block 20 during use.

[0035] Example 2

[0036] The difference from Embodiment 1 is that: a discharge pipe 30 is connected to the mounting tank 11, the discharge pipe 30 is positioned above the screening plate 16, one end of the discharge pipe 30 is connected to a crushing box 34, the crushing box 34 is fixedly mounted on the mounting tank 11, and crushing rollers 35 are symmetrically rotated inside the crushing box 34. A third gear and a fourth gear are respectively fixedly mounted at one end of the two crushing rollers 35, and the third gear and the fourth gear mesh with each other. The other end of the crushing roller 35 is fixedly connected to the output end of a third motor 36, the third motor 36 is fixedly mounted on one side of the crushing box 34, and a return pipe is connected to the bottom of the crushing box 34, one end of which is located in the material box 1. Above 5, during use, after the screening plate 16 filters and intercepts agglomerated raw materials or larger impurities, the material feeding tube 23 will move the raw materials and impurities when it rotates. When one of the material feeding tubes 23 rotates to the position of one end of the discharge tube 30, one end of the top rod 19 is in close contact with the bottom end of the guide block 20, so that the screening plate 16 moves to the highest position, making the upper end of the screening plate 16 flush with the bottom end of the discharge tube 30, thereby causing impurities or larger raw materials to move into the discharge tube 30. When it is necessary to crush larger raw materials, the third motor 36 is started, so that the two crushing rollers 35 rotate simultaneously in opposite directions, thereby crushing the raw materials. The crushed raw materials flow back into the material box 15 for repeated screening.

[0037] The bottom end of the discharge pipe 30 is connected to a discharge pipe 33. A switching baffle 31 is slidably provided on the discharge pipe 30 at a position corresponding to one end of the discharge pipe 33. The switching baffle 31 is fixedly mounted on the output end of the electric push rod 32. The electric push rod 32 is fixedly mounted on the upper end of the discharge pipe 30. In use, when the impurities in the sand are screened and need to be discharged directly, the electric push rod 32 is activated. The output end of the electric push rod 32 drives the switching baffle 31 to move, thereby closing one end of the discharge pipe 30 and opening one end of the discharge pipe 33. This allows the impurities on the upper end of the screening plate 16 to be discharged into the discharge pipe 30 and then discharged directly through the discharge pipe 33.

[0038] The above embodiments disclose a feeding device for concrete preparation. When concrete raw materials need to be fed, raw materials are added into the material box 15 through an external feeding component. Then, the first motor 14 is started. The output end of the first motor 14 drives the fixed shaft to rotate, and the fixed shaft drives the first spiral plate 13 to rotate, so that the raw materials in the material box 15 are transported into the installation tank 11 and fall onto the upper end of the screening plate 16. At the same time, the second motor 27 is started. The output end of the second motor 27 drives the first rotating joint 25 to rotate. The first rotating joint 25 drives the feeding pipe 23 to rotate through the transfer pipe 24 and the first support frame. Since the feeding pipe 23 is in close contact with the upper end of the screening plate 16, the feeding pipe 23 spreads the raw materials on the upper end of the screening plate 16 flat. At the same time, the external air supply component supplies gas into the first rotating joint 25. Then, the gas enters the feeding pipe 23 through the connecting pipe. The feeding pipe 23 is discharged through several vent holes at the bottom, thereby cleaning the filter holes on the screening plate 16 and preventing the filter holes of the screening plate 16 from being blocked.

[0039] When the transfer pipe 24 rotates, it drives the mounting shaft 21 to rotate. The mounting shaft 21 drives the top rod 19 to rotate through two fixed plates. When one end of the top rod 19 is in close contact with the inclined surface of the guide block 20, the screening plate 16 slides inside the mounting tank 11. When the top rod 19 disengages from the guide block 20, the screening plate 16 returns to its initial position under the action of the tension spring 18. By intermittently shaking the screening plate 16, the screening effect of the screening plate 16 on the raw materials is increased. At the same time, one end of the transfer pipe 24 slides at one end of the first rotating joint 25, so that the bottom end of the feeding pipe 23 is always in close contact with the upper end of the screening plate 16. The mounting shaft 21 drives the second spiral plate 22 to rotate, so that the mounting tank 11 can be uniformly fed. After the screening plate 16 filters and intercepts agglomerated raw materials or larger impurities, the feeding pipe 23 will move the raw materials and impurities when it rotates. When a feeding pipe 23 moves, the raw materials and impurities are moved. When pipe 23 rotates to the position of one end of discharge pipe 30, one end of top rod 19 is in close contact with the bottom end of guide block 20, causing screen plate 16 to move to the highest position, so that the upper end of screen plate 16 is flush with the bottom end of discharge pipe 30, thereby causing impurities or larger raw materials to move into the discharge pipe 30. When larger raw materials need to be crushed, the third motor 36 is started, so that the two crushing rollers 35 rotate simultaneously in opposite directions, thereby crushing the raw materials. The crushed raw materials flow back into the material box 15 for repeated screening. When impurities need to be discharged directly, the electric push rod 32 is started. The output end of electric push rod 32 drives the switching baffle 31 to move, thereby closing one end of discharge pipe 30 and opening one end of discharge pipe 33, so that after the impurities on the upper end of screen plate 16 are discharged into the discharge pipe 30, the impurities will be directly discharged through discharge pipe 33.

[0040] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A concrete preparation feeding device, comprising a mounting tank (11), wherein a transmission pipe (12) is connected to the mounting tank (11), a fixed shaft is rotatably mounted inside the transmission pipe (12), a first spiral plate (13) is fixedly mounted on the fixed shaft, the fixed shaft is fixedly connected to the output end of a first motor (14), the first motor (14) is fixedly mounted at one end of the transmission pipe (12), a material box (15) is connected to the transmission pipe (12), and a screening plate (16) is slidably mounted inside the mounting tank (11), characterized in that, The bottom end of the screening plate (16) is fixedly provided with a limiting ring (17). The limiting ring (17) is provided with a plurality of limiting grooves in a circular array. Each limiting groove is provided with a limiting block. The limiting block is fixedly provided inside the installation tank (11). The discharge end of the installation tank (11) is provided with a second spiral plate (22). The second spiral plate (22) is fixedly provided at one end of the installation shaft (21). The other end of the installation shaft (21) is sleeved with a transfer pipe (24). The installation shaft (21) is provided with a shaking mechanism for increasing the screening effect of the screening plate (16). The transfer pipe (24) is provided with a material-pulling mechanism for sieving the material at the upper end of the screening plate (16).

2. The concrete preparation feeding device according to claim 1, characterized in that, The feeding mechanism includes two symmetrically arranged feeding tubes (23). Each feeding tube (23) is fixedly provided with a first support frame. The first support frame is fixedly provided on the adapter tube (24). One end of the adapter tube (24) is sleeved with a first rotating joint (25). The first rotating joint (25) is rotatably provided in the mounting hole at the upper end of the mounting tank (11). The adapter tube (24) has a polygonal cross-section. One end of the first rotating joint (25) is fixedly provided with a first gear. A second gear is meshed on the first gear. The second gear is fixedly provided on the output end of the second motor (27). The second motor (27) is fixedly provided inside the mounting frame. The mounting frame is fixedly provided at the upper end of the mounting tank (11). A return spring (26) is provided between one end of the adapter tube (24) and one end inside the first rotating joint (25).

3. The concrete preparation feeding device according to claim 2, characterized in that, The bottom end of the feeding tube (23) is provided with several exhaust holes. Each feeding tube (23) is connected to a connecting tube. The other end of each connecting tube is connected to the inside of the transfer tube (24). One end of the first rotating joint (25) is provided with a vent hole. One end of the first rotating joint (25) is rotatably provided with a second rotating joint. The second rotating joint is connected to an external air supply component.

4. The concrete preparation feeding device according to claim 3, characterized in that, The upper end of the installation tank (11) is provided with an installation groove, and a dust filter screen (28) is fixedly installed in the installation groove. A scraper (29) is fixedly installed on the first rotating joint (25), and the upper end of the scraper (29) is in close contact with the upper end of the interior of the installation tank (11).

5. The concrete preparation feeding device according to claim 4, characterized in that, The shaking mechanism includes a top rod (19) and a guide block (20). The bottom of the screening plate (16) is provided with a circular array of several guide blocks (20). Two top rods (19) are symmetrically arranged at corresponding positions of the guide blocks (20). Each top rod (19) is fixedly provided with a fixing rod. The fixing rods are fixedly provided on the mounting shaft (21). The bottom of the screening plate (16) is fixedly provided with a tension spring (18). The other end of the tension spring (18) is fixedly provided with a limiting plate. The limiting plate is symmetrically provided with buckles. Two buckles are respectively fixedly provided on two fixing rods. The mounting shaft (21) is rotatably provided with a second support frame. The second support frame is fixedly provided inside the mounting tank (11). The cross-section of the connection between the mounting shaft (21) and the transfer pipe (24) is polygonal.

6. The concrete preparation feeding device according to claim 5, characterized in that, Each of the top rods (19) is equipped with a ball bearing at one end.

7. The concrete preparation feeding device according to claim 1, characterized in that, The installation tank (11) is connected to a discharge pipe (30), which is located above the screening plate (16). One end of the discharge pipe (30) is connected to a crushing box (34), which is fixedly installed on the installation tank (11). The crushing box (34) is symmetrically rotated inside the crushing box (34). One end of each of the two crushing rollers (35) is fixedly provided with a third gear and a fourth gear, which mesh with each other. The other end of the crushing roller (35) is fixedly connected to the output end of a third motor (36), which is fixedly installed on one side of the crushing box (34). The bottom end of the crushing box (34) is connected to a return pipe, one end of which is located above the material box (15).

8. The concrete preparation feeding device according to claim 7, characterized in that, The bottom end of the discharge pipe (30) is connected to the discharge pipe (33). A switching baffle (31) is slidably provided on the discharge pipe (30) at a position corresponding to one end of the discharge pipe (33). The switching baffle (31) is fixedly installed on the output end of the electric push rod (32). The electric push rod (32) is fixedly installed on the upper end of the discharge pipe (30).

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