Quantitative adding device for preparing hybrid polypropylene fiber toughened anti-crack concrete

Abstract

The quantitative adding device for preparing the mixed polypropylene fiber toughened anti-crack concrete comprises a shell, a spiral feeder used for conveying mixed polypropylene fiber toughened anti-crack concrete raw materials is fixedly installed at the top of the shell, and a discharging port of the spiral feeder is aligned with an opening of the shell. A servo motor is fixedly installed on the surface of one side of the shell, an output shaft of the servo motor penetrates through the surface of the shell and extends into the shell, the output shaft of the servo motor is fixedly connected with a placing plate, and a force measuring sensor is fixedly installed at the top of the placing plate. By adjusting data parameters of the DSP controller, the spiral feeder is started, polypropylene fibers are conveyed to the opening of the shell and fall into the weighing disc, when the number of polypropylene in the weighing disc reaches a set value, the DSP controller controls the spiral feeder to stop running, the servo motor turns over the placing plate by 90 degrees, and then the polypropylene fibers are conveyed to the opening of the shell and fall into the weighing disc. And the polypropylene fibers in the weighing plate are poured out.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete preparation, and specifically relates to a quantitative adding device for preparing mixed polypropylene fiber toughened and crack-resistant concrete. Background Art

[0002] Hybrid polypropylene fiber toughened crack-resistant concrete is a special concrete material, which achieves the purpose of enhancing the toughness, crack resistance and durability of concrete by adding polypropylene fiber into ordinary concrete. This concrete material has a wide range of application prospects in the construction field, especially in industrial and civil engineering projects such as underground projects, pools, civil air defense projects, large-volume concrete projects, high-rise buildings, hydraulic projects, highway bridges, tunnels, airport runways, etc., which have high requirements on concrete performance.

[0003] A Chinese patent with publication number CN215969454U discloses a mixing quantitative device for preparing polypropylene fiber reinforced concrete, comprising two mixing tanks each having a discharge pipe at the lower end, and also comprising: two symmetrically arranged device blocks, respectively fixedly connected to the side walls of the discharge pipe, wherein the two device blocks are each provided with a sliding cavity connected to the discharge pipe; two quantitative sliding blocks, respectively slidably connected in the two sliding cavities, wherein the outer walls of the two device blocks are rotatably connected to a rotating shaft through a rotating hole, and the two rotating shafts are connected to the quantitative sliding blocks through an adjusting mechanism; a rotating rod, rotatably connected between the two mixing tanks through a bracket, a handle is fixedly installed on the upper end of the rotating rod, and the rotating rod and the two rotating shafts are connected through a locking mechanism; the utility model can simply and conveniently complete the discharge volume adjustment work of the discharge pipe, and the adjustment accuracy is higher.

[0004] Although the above-mentioned mixing quantitative device can simply and conveniently complete the discharge volume adjustment work of the discharge pipe, and the adjustment accuracy is higher, it is not convenient to perform accurate quantitative addition during the addition process. When the pressure in the mixing tank is too high, the discharge speed of the discharge pipe will also increase, resulting in an imbalance in the ratio of concrete and polypropylene fiber, thereby affecting the quality of concrete. Utility Model Content

[0005] The utility model aims to provide a quantitative adding device for preparing mixed polypropylene fiber toughened crack-resistant concrete, so as to solve the technical defects that the existing equipment is not convenient for accurate quantitative addition, and the ratio of concrete and polypropylene fiber is easily unbalanced due to excessive pressure in the mixing tank, thereby affecting the quality of concrete.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A quantitative adding device for preparing mixed polypropylene fiber toughened and crack-resistant concrete comprises a shell, a screw feeder for conveying mixed polypropylene fiber toughened and crack-resistant concrete raw materials is fixedly installed on the top of the shell, the discharge port of the screw feeder is aligned with the mouth of the shell, a servo motor is fixedly installed on the surface of one side of the shell, the output shaft of the servo motor passes through the shell surface and extends to the inside of the shell, the output shaft of the servo motor is fixedly connected to a placement plate, a force sensor is fixedly installed on the top of the placement plate, a weighing pan is fixedly installed on the measuring end of the force sensor, a discharge port is opened on one side of the shell, a guide plate is fixedly installed in the inner cavity of the shell and below the placement plate, the guide plate passes through the discharge port and is inclined, a protection box is fixedly installed on one side of the shell, a DSP controller is fixedly installed inside the protection box, a signal output end of the force sensor is connected to a signal input end of the DSP controller through a wire, and the servo motor is controlled by the DSP controller.

[0008] As a further solution of the utility model, blocking plates are fixedly installed inside the two sides of the shell, and the two groups of blocking plates are arranged obliquely toward the center.

[0009] As a further solution of the utility model, a mounting plate is fixedly mounted on one side of the shell, a blower is fixedly mounted on the top of the mounting plate, and an air outlet end of the blower passes through the shell and extends to the inside of the shell.

[0010] As a further solution of the utility model, a hollow block is fixedly installed on the inner wall of one side of the shell and above the guide plate, the air outlet end of the blower is connected to the inner cavity of the hollow block, and a plurality of groups of air outlet pipes are connected to the surface of one side of the hollow block.

[0011] As a further solution of the utility model, a sealing plate is rotatably connected to the inner cavity of the shell and located at the shell mouth. A connecting column is fixedly installed on one end of the sealing plate and the placement plate. One end of the connecting column passes through the inner wall of the shell and extends to the outside of the shell. The two groups of connecting columns are connected together by a linkage assembly.

[0012] As a further preferred embodiment of the present invention, the linkage assembly includes a sprocket fixedly mounted on one end of the connecting column, and the two sets of sprockets are connected together by a chain.

[0013] Compared with the prior art, the quantitative addition device for preparing hybrid polypropylene fiber toughened crack-resistant concrete provided by the utility model has the following beneficial effects:

[0014] 1. Through the setting of DSP controller, pour the polypropylene fiber into the screw feeder, then adjust the data parameters of DSP controller, and then start the screw feeder. The screw feeder transports the polypropylene fiber to the mouth of the shell and drops it into the weighing plate. The force sensor measures the polypropylene fiber in the weighing plate. When the amount of polypropylene in the weighing plate reaches the set value, the DSP controller controls the screw feeder to stop running, and starts the servo motor to flip the placement plate 90 degrees, pouring out the polypropylene fiber in the weighing plate, thereby automatically adding polypropylene fiber to the concrete mixing tank in a quantitative manner, which can ensure the quality of concrete and greatly reduce the workload of the staff.

[0015] 2. The setting of the blocking plate guides the falling polypropylene fibers to prevent the polypropylene fibers from falling into the gap between the placement plate and the inner wall of the shell and causing waste.

[0016] 3. The blower blows the polypropylene fibers out from the inside of the shell to the discharge port, which can prevent the polypropylene fibers from accumulating on the surface of the guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for use in the embodiment will be briefly introduced below. Obviously, the drawings described below are only examples of the embodiment of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 The structure of the embodiment of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 2 The structure of the embodiment of the utility model is shown in FIG. Figure 2 ;

[0020] Figure 3 The cross-sectional structure of the embodiment of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 4 The cross-sectional structure of the embodiment of the utility model is shown in FIG. Figure 2 .

[0022] Reference numerals:

[0023] 100. Shell; 101. Mounting plate; 102. Blower; 103. Servo motor; 104. Sealing plate; 105. Screw feeder; 106. Discharge port; 107. Guide plate; 108. Mounting hole; 109. Hollow block; 110. Air outlet pipe; 111. Blocking plate; 200. Connecting column; 201. Sprocket; 202. Chain; 300. Protective box; 301. DSP controller; 400. Weighing pan; 401. Force sensor; 402. Placement plate. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model more clear, the embodiment of the utility model is further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the embodiments of the present invention.

[0026] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0027] See attached Figure 1-4 As shown, an embodiment of the utility model is a quantitative adding device for preparing mixed polypropylene fiber toughened crack-resistant concrete, including a shell 100, on the top of which is fixedly installed a screw feeder 105 for conveying mixed polypropylene fiber toughened crack-resistant concrete raw materials, and a discharge port 106 of the screw feeder 105 is aligned with the mouth of the shell 100.

[0028] A servo motor 103 is fixedly installed on one side surface of the shell 100, and the output shaft of the servo motor 103 passes through the surface of the shell 100 and extends into the inside of the shell 100. The output shaft of the servo motor 103 is fixedly connected to a placement plate 402, and a force sensor 401 is fixedly installed on the top of the placement plate 402, wherein the model of the force sensor 401 is cz1-6390-500g, and a weighing pan 400 is fixedly installed on the measuring end of the force sensor 401. A discharge port 106 is opened on one side of the shell 100, and a guide plate 107 is fixedly installed in the inner cavity of the shell 100 and below the placement plate 402, and the guide plate 107 passes through the discharge port 106 and is arranged at an incline.

[0029] A protection box 300 is fixedly installed on one side of the shell 100, and a DSP controller 301 is fixedly installed inside the protection box 300, wherein the model of the DSP controller is TMS320F2812, the signal output end of the force sensor 401 is connected to the signal input end of the DSP controller 301 through a wire, and the servo motor 103 is controlled by the DSP controller 301.

[0030] A mounting hole 108 for a fixing device is provided at the bottom of the shell 100. The polypropylene fiber is poured into the screw feeder 105 through the setting of the DSP controller 301, and then the data parameters of the DSP controller 301 are adjusted, and then the screw feeder 105 is started. The screw feeder 105 transports the polypropylene fiber to the mouth of the shell 100 and drops it into the weighing pan 400. The force sensor 401 measures the polypropylene fiber in the weighing pan 400.

[0031] When the amount of polypropylene in the weighing pan 400 reaches the set value, the DSP controller 301 controls the screw feeder 105 to stop running, and starts the servo motor 103 to flip the placement plate 402 90 degrees, pouring out the polypropylene fibers in the weighing pan 400, thereby automatically adding polypropylene fibers to the concrete mixing tank in a quantitative manner, greatly reducing the workload of the staff.

[0032] Blocking plates 111 are fixedly installed inside both sides of the shell 100. The two sets of blocking plates 111 are arranged obliquely toward the center. Through the setting of the blocking plates 111, the falling polypropylene fibers are guided to prevent the polypropylene fibers from falling into the gap between the placement plate 402 and the inner wall of the shell 100, causing waste.

[0033] A mounting plate 101 is fixedly installed on one side of the shell 100, and a blower 102 is fixedly installed on the top of the mounting plate 101. The air outlet end of the blower 102 penetrates the shell 100 and extends into the interior of the shell 100. Through the setting of the blower 102, the polypropylene fibers are blown out from the interior of the shell 100 to the discharge port 106 to prevent the polypropylene fibers from accumulating on the surface of the guide plate 107.

[0034] A hollow block 109 is fixedly installed on the inner wall of one side of the shell 100 and above the guide plate 107. The air outlet end of the blower 102 is connected to the inner cavity of the hollow block 109. A plurality of groups of air outlet pipes 110 are connected to the surface of one side of the hollow block 109. Through the arrangement of the hollow block 109 and the air outlet pipes 110, the hollow block 109 gathers the air blown by the blower 102 and evenly disperses it to the surface of the guide plate 107 through the air outlet pipes 110, thereby ensuring that there are no dead angles when blowing air on the surface of the guide plate 107.

[0035] A sealing plate 104 is rotatably connected to the inner cavity of the shell 100 and located at the mouth of the shell 100. A connecting column 200 is fixedly installed on one end of the sealing plate 104 and the placement plate 402. One end of the connecting column 200 passes through the inner wall of the shell 100 and extends to the outside of the shell 100. The two groups of connecting columns 200 are connected together by a linkage component. Through the setting of the linkage component, the servo motor 103 flips the placement plate 402 90 degrees, and at the same time as the placement plate 402 flips, it drives the sealing plate 104 to rotate to close the mouth of the shell 100, thereby preventing the wind blown by the blower 102 from escaping from the mouth of the shell 100.

[0036] The linkage assembly includes a sprocket 201 fixedly mounted on one end of a connecting column 200. Two sets of sprockets 201 are connected together by a chain 202. By setting the chain 202 and the sprocket 201, slippage will not occur during the transmission process, and a better transmission effect is achieved.

[0037] When the embodiment of the utility model is used, the device is installed next to the concrete mixing tank, the discharge port 106 of the device is aligned with the feed port of the concrete mixing tank, and then the polypropylene fiber is poured into the screw feeder 105, and then the data parameters of the DSP controller 301 are adjusted, and then the screw feeder 105 is started, and the screw feeder 105 conveys the polypropylene fiber to the mouth of the shell 100 and falls into the weighing plate 400. The force sensor 401 measures the polypropylene fiber in the weighing plate 400. When the amount of polypropylene in the weighing plate 400 reaches When the set value is reached, the DSP controller 301 controls the screw feeder 105 to stop running, and starts the servo motor 103 to flip the placement plate 402 90 degrees, pouring out the polypropylene fibers in the weighing plate 400, and while the placement plate 402 is flipped, the chain 202 is driven to drive the sealing plate 104 to rotate to close the mouth of the shell 100, and the DSP controller 301 controls the blower 102 to work, and blows the polypropylene fibers out of the discharge port 106 through the air outlet pipe 110 into the mixing tank.

[0038] In summary: the embodiment of the utility model pours the polypropylene fiber into the screw feeder 105 through the setting of the DSP controller 301, adjusts the data parameters of the DSP controller 301, starts the screw feeder 105, and the screw feeder 105 transports the polypropylene fiber to the mouth of the shell 100 and drops it into the weighing pan 400. The force sensor 401 measures the polypropylene fiber in the weighing pan 400. When the amount of polypropylene in the weighing pan 400 reaches the set value, the DSP controller 301 controls the screw feeder 105 to stop running, and starts the servo motor 103 to flip the placement plate 402 90 degrees, and pours out the polypropylene fiber in the weighing pan 400, thereby automatically adding polypropylene fiber to the concrete mixing tank in a quantitative manner, which greatly reduces the workload of the staff. The setting of the blower 102 blows the polypropylene fiber from the inside of the shell 100 to the discharge port 106 to prevent the polypropylene fiber from accumulating on the surface of the guide plate 107.

[0039] The above shows and describes the basic principles of the present invention. The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only intended to illustrate the principles of the present invention. Without departing from the scope of the present invention, any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A quantitative adding device for preparing hybrid polypropylene fiber toughened crack-resistant concrete, comprising a housing (100), characterized in that: A screw feeder (105) for conveying mixed polypropylene fiber toughened crack-resistant concrete raw materials is fixedly installed on the top of the shell (100), and the discharge port (106) of the screw feeder (105) is aligned with the mouth of the shell (100). A servo motor (103) is fixedly installed on the surface of one side of the shell (100), and the output shaft of the servo motor (103) passes through the surface of the shell (100) and extends into the inside of the shell (100). The output shaft of the servo motor (103) is fixedly connected to a placement plate (402), and a force sensor (401) is fixedly installed on the top of the placement plate (402). The measuring end of the force sensor (401) is fixedly installed. A weighing pan (400) is installed, a discharge port (106) is opened on one side of the shell (100), a guide plate (107) is fixedly installed in the inner cavity of the shell (100) and located below the placement plate (402), the guide plate (107) passes through the discharge port (106) and is arranged at an angle, a protection box (300) is fixedly installed on one side of the shell (100), a DSP controller (301) is fixedly installed inside the protection box (300), a signal output end of the force sensor (401) is connected to a signal input end of the DSP controller (301) through a wire, and the servo motor (103) is controlled by the DSP controller (301).

2. A quantitative adding device for preparing hybrid polypropylene fiber toughened crack-resistant concrete according to claim 1, characterized in that: Blocking plates (111) are fixedly mounted inside the two sides of the shell (100), and the two groups of blocking plates (111) are both arranged obliquely toward the center.

3. A quantitative adding device for preparing hybrid polypropylene fiber toughened crack-resistant concrete according to claim 2, characterized in that: A mounting plate (101) is fixedly mounted on one side of the housing (100), a blower (102) is fixedly mounted on the top of the mounting plate (101), and an air outlet end of the blower (102) penetrates the housing (100) and extends into the interior of the housing (100).

4. A quantitative adding device for preparing hybrid polypropylene fiber toughened crack-resistant concrete according to claim 3, characterized in that: A hollow block (109) is fixedly mounted on the inner wall of one side of the shell (100) and located above the guide plate (107); the air outlet end of the blower (102) is connected to the inner cavity of the hollow block (109); and a plurality of groups of air outlet pipes (110) are connected to the surface of one side of the hollow block (109).

5. A quantitative adding device for preparing hybrid polypropylene fiber toughened crack-resistant concrete according to claim 4, characterized in that: A sealing plate (104) is rotatably connected to the inner cavity of the shell (100) and is located at the mouth of the shell (100); a connecting column (200) is fixedly installed at one end of the sealing plate (104) and the placement plate (402); one end of the connecting column (200) passes through the inner wall of the shell (100) and extends to the outside of the shell (100); two groups of the connecting columns (200) are connected together via a linkage assembly.

6. A quantitative adding device for preparing hybrid polypropylene fiber toughened crack-resistant concrete according to claim 5, characterized in that: The linkage assembly comprises a sprocket (201) fixedly mounted on one end of a connecting column (200), and two groups of sprockets (201) are connected together via a chain (202).

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