Energy-saving dry-mixed mortar production raw material screening device for building construction

Abstract

The utility model discloses an energy-saving dry-mixed mortar production raw material screening device for building construction, and particularly relates to the technical field of screening devices.The energy-saving dry-mixed mortar production raw material screening device comprises a supporting frame, the inner surfaces of the tops of the four corners of the supporting frame are jointly and fixedly connected with a screening box, and the top of the screening box is fixedly connected with a feeding hopper; two rotating doors are rotationally connected to the front face of the screening box, and three discharging plates are fixedly connected to the right end of the screening box. According to the energy-saving dry-mixed mortar production raw material screening device for building construction, the screening assembly is arranged, specifically, when a screening plate in the device is damaged and needs to be replaced, limitation on the screening plate is relieved by rotating a threaded rod, and the screening plate can be pulled out to be independently replaced; and the whole screening mechanism does not need to be disassembled, so that the maintenance time of workers can be shortened, the screening efficiency of the device on the dry-mixed mortar raw materials is improved, the manpower input of maintenance can be reduced, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of screening devices, in particular to an energy-saving dry-mix mortar production raw material screening device for building construction. Background Art

[0002] Dry-mix mortar refers to a granular or powdery material made by physically mixing dried and sieved aggregates, inorganic cementitious materials and additives in a certain proportion. It is transported to the construction site in bags or bulk and can be used directly after adding water and mixing. It is also called dry-mix mortar. The aggregate diameter, grading, mud or stone powder content of good quality dry-mix mortar must be appropriate. Aggregate fineness that is too small or too large can easily cause mortar cracking and construction difficulties. Therefore, the sand needs to be screened in the production of dry-mix mortar, and then stored in grades and used in combination to ensure the quality stability of the dry-mix mortar.

[0003] After the device has been working for a long time, the mesh of the screening plate will wear, become thinner, or break, and needs to be replaced by staff. The screening mechanism of most existing devices is integrated, and the entire mechanism needs to be disassembled and replaced. This will not only greatly increase the maintenance time, thereby affecting the screening efficiency of the device for dry-mixed mortar raw materials, but also the overall disassembly and replacement of the integrated screening mechanism means that more manpower is required, which increases the maintenance cost. Therefore, we propose an energy-saving dry-mixed mortar production raw material screening device for building construction to solve the above problems. Utility Model Content

[0004] The main purpose of the utility model is to provide an energy-saving raw material screening device for dry-mixed mortar production for building construction, which can effectively solve the above problems.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An energy-saving raw material screening device for dry-mixed mortar production for building construction comprises a support frame, a screening box is fixedly connected to the inner surfaces of the tops of the four corners of the support frame, a feed hopper is fixedly connected to the top of the screening box, two rotating doors are rotatably connected to the front of the screening box, three discharge plates are fixedly connected to the right end of the screening box, an anti-blocking component is arranged inside the screening box, and a screening component is arranged inside the screening box.

[0007] Preferably, the screening assembly includes three sliding frames, and the three sliding frames are arranged in a linear array. The top inner wall of the sliding frame is slidably connected to a screening plate, and the left and right inner walls of the front side of the sliding frame are threadedly connected to threaded rods, and the front sides of the two threaded rods are fixedly connected to rotating blocks, and the outer surfaces of the two threaded rods are rotatably connected to limiting blocks, and the bottom of the back sides of the two limiting blocks are in close contact with the top of the screening plate on the same side.

[0008] Preferably, the four corners of the inner wall of the screening box are fixedly connected with connecting frames, the inner walls of the four connecting frames are fixedly connected with fixing rods, and the outer surfaces of the four fixing rods are slidably connected to the inner wall of the sliding frame on the same side.

[0009] Preferably, three springs are sleeved on the outer surface of the fixing rod, the tops of the three springs are fixedly connected to the bottom of the sliding frame on the same side, and the bottoms of the three springs are fixedly connected to the inner wall of the connecting frame.

[0010] Preferably, the ends of the three sliding frames close to each other are commonly fixedly connected to two connecting plates, the bottom of the sliding frame located at the bottom is fixedly connected to a mounting frame, and the bottom of the mounting frame is fixedly connected to a vibration motor.

[0011] Preferably, the anti-blocking assembly includes three reciprocating threaded rods, the left and right outer surfaces of the three reciprocating threaded rods are rotatably connected to the inner wall of the screening box, and the three reciprocating threaded rods are arranged in a linear array.

[0012] Preferably, the outer surface of the reciprocating threaded rod at the center and the outer surface of the reciprocating threaded rod at the top are jointly connected by belt one, the outer surface of the reciprocating threaded rod at the center and the outer surface of the reciprocating threaded rod at the bottom are jointly connected by belt two, the left end of the screening box is fixedly connected to a motor, and the output end of the motor is fixedly connected to the left end of the reciprocating threaded rod at the center.

[0013] Preferably, the outer surfaces of the three reciprocating threaded rods are threadedly connected to bellows, three square recessed holes are opened on the back of the screening box, the outer surfaces of the back of the three bellows are slidingly connected to the inner walls of the square recessed holes on the same side, the right ends of the three bellows are fixedly connected to hoses, the top of the screening box is fixedly connected to a fan, and the front sides of the tops of the three hoses are fixedly connected to the back of the fan.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The utility model provides a screening component. Specifically, when the screening plate inside the device is damaged and needs to be replaced, the restriction on the screening plate is released by rotating the threaded rod, so that it can be pulled out and replaced separately, without disassembling the screening mechanism as a whole. This not only reduces the maintenance time of the staff, but also improves the screening efficiency of the device for dry-mixed mortar raw materials. Moreover, by only replacing the corresponding damaged screening plate, the manpower input for maintenance can be reduced, thereby reducing the maintenance cost.

[0016] 2. The utility model sets an anti-blocking component. When the motor is turned on, the bellows is driven to make reciprocating motion left and right inside the screening box. When the fan is turned on, wind force can be generated to the corresponding bellows through several hoses to prevent the dry mortar raw materials from getting stuck in the gaps of the screening plate. This can not only effectively prevent the raw materials from getting stuck in the gaps, keep the sieve holes unobstructed, and improve the efficiency of the entire production process, but also ensure that the raw materials are separated according to the correct particle size. The particle composition of the produced dry mortar is more in line with the expected design requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall back structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the front cross-sectional structure of the screening box of the utility model;

[0020] Figure 4 For this utility model Figure 3 A is a schematic diagram of the enlarged structure of the middle part;

[0021] Figure 5 This is a schematic diagram of the overall structure of the connecting frame of the utility model;

[0022] Figure 6 This is a schematic diagram of the overall structure of the limit block of the utility model;

[0023] Figure 7 It is a schematic diagram of the overall structure of the bellows of the utility model.

[0024] In the figure: 1. support frame; 11. screening box; 12. feed hopper; 13. rotating door; 14. discharge plate; 2. anti-blocking assembly; 21. reciprocating threaded rod; 211. belt one; 212. belt two; 22. bellows; 23. motor; 24. fan; 241. hose; 3. screening assembly; 31. connecting frame; 311. fixed rod; 312. spring; 32. sliding frame; 321. connecting plate; 33. screening plate; 331. threaded rod; 332. rotating block; 333. limiting block; 34. mounting frame; 341. vibration motor. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] Embodiment 1: Figure 1-7As shown, an energy-saving raw material screening device for dry-mixed mortar production for building construction includes a support frame 1, a screening box 11 is fixedly connected to the inner surface of the top of the four corners of the support frame 1, a feed hopper 12 is fixedly connected to the top of the screening box 11, two rotating doors 13 are rotatably connected to the front of the screening box 11, three discharge plates 14 are fixedly connected to the right end of the screening box 11, an anti-blocking component 2 is arranged inside the screening box 11, and a screening component 3 is arranged inside the screening box 11.

[0027] Specifically, in order to achieve the purpose of being able to remove and replace the screen plate when it is damaged, refer to Figure 5 and Figure 6 In this embodiment, the screening assembly 3 includes three sliding frames 32, and the three sliding frames 32 are arranged in a linear array. The top inner wall of the sliding frame 32 is slidably connected with a screening plate 33, and the left and right inner walls of the front side of the sliding frame 32 are threadedly connected with threaded rods 331, and the front sides of the two threaded rods 331 are fixedly connected with rotating blocks 332, and the outer surfaces of the two threaded rods 331 are rotatably connected with limiting blocks 333, and the bottom of the back sides of the two limiting blocks 333 are in close contact with the top of the screening plate 33 on the same side.

[0028] The cam 332 is then retracted to remove the cam 333 from the cam 336, which is then retracted to remove the cam 336. The cam 332 is retracted to remove the cam 336.

[0029] For further information, see Figure 3 and Figure 5 In this embodiment, the four corners of the inner wall of the screening box 11 are fixedly connected with connecting frames 31, the inner walls of the four connecting frames 31 are fixedly connected with fixing rods 311, and the outer surfaces of the four fixing rods 311 are slidably connected to the inner wall of the sliding frame 32 on the same side.

[0030] For further information, see Figure 5In this embodiment, three springs 312 are sleeved on the outer surface of the fixing rod 311 , the tops of the three springs 312 are fixedly connected to the bottom of the sliding frame 32 on the same side, and the bottoms of the three springs 312 are fixedly connected to the inner wall of the connecting frame 31 .

[0031] For further information, see Figure 3 In this embodiment, the three sliding frames 32 are fixedly connected to two connecting plates 321 at their mutually adjacent ends, the sliding frame 32 at the bottom is fixedly connected to a mounting frame 34, and the mounting frame 34 is fixedly connected to a vibration motor 341 at its bottom.

[0032] During the implementation process, when it is necessary to use the device to screen the dry mortar raw materials, first, the raw materials are put into the screening box 11 through the feed hopper 12. The raw materials entering the screening box 11 will fall into the top of the screening plate 33 at the top. Turn on the vibration motor 341 and drive the three sliding frames 32 to shake up and down at the same time through the mounting frame 34, so that the corresponding screening plate 33 can shake. When the sliding frame 32 shakes, it will squeeze the springs 312 corresponding to the four corners. The raw materials that fall into the top of the screening plate 33 will fall to the top of the screening plate 33 below as it shakes, and the larger ones will be discharged from the corresponding discharge plate 14 on the right as it shakes. The raw materials can be screened into sizes of various specifications through several screening plates 33, which can better meet the workability and strength requirements of concrete.

[0033] Embodiment 2: This embodiment is provided with an anti-blocking component based on embodiment 1.

[0034] Specifically, in order to prevent the dry mortar raw materials from getting stuck in the gaps of the screening plate, refer to Figure 3 and Figure 4 In this embodiment, the anti-blocking component 2 includes three reciprocating threaded rods 21, and the left and right outer surfaces of the three reciprocating threaded rods 21 are rotatably connected to the inner wall of the screening box 11, and the three reciprocating threaded rods 21 are arranged in a linear array.

[0035] For further information, see Figure 4 In this embodiment, the outer surface of the reciprocating threaded rod 21 at the center and the outer surface of the reciprocating threaded rod 21 at the top are jointly connected by belt 1 211, the outer surface of the reciprocating threaded rod 21 at the center and the outer surface of the reciprocating threaded rod 21 at the bottom are jointly connected by belt 2 212, and the left end of the screening box 11 is fixedly connected to a motor 23, and the output end of the motor 23 is fixedly connected to the left end of the reciprocating threaded rod 21 at the center.

[0036] For further information, see Figure 3In this embodiment, the outer surfaces of the three reciprocating threaded rods 21 are threadedly connected to the bellows 22, and three square recessed holes are opened on the back of the screening box 11. The outer surfaces of the back of the three bellows 22 are slidably connected to the inner walls of the square recessed holes on the same side, and the right ends of the three bellows 22 are fixedly connected to the hose 241. The top of the screening box 11 is fixedly connected to the fan 24, and the top fronts of the three hoses 241 are fixedly connected to the back of the fan 24.

[0037] During the implementation process, the screening plate 33 is screening the raw materials while turning on the motor 23 to drive the reciprocating threaded rod 21 to rotate in the inner wall of the screening box 11. When the reciprocating threaded rod 21 rotates, the belt 1 211 and the belt 2 212 can make the three reciprocating threaded rods 21 rotate in the inner wall of the screening box 11 at the same time. When the reciprocating threaded rod 21 rotates, it will drive the bellows 22 to do left and right reciprocating motion inside the screening box 11. When the bellows 22 moves, the fan 24 is turned on to generate wind force to the corresponding bellows 22 through several hoses 241. The wind entering the bellows 22 will be blown to the corresponding bottom of the screening plate 33 through several wind holes on the top of the bellows 22, which can prevent the dry mortar raw materials from being stuck in the gap of the screening plate 33. It can not only effectively prevent the raw materials from being stuck in the gap, keep the sieve holes unobstructed, and improve the efficiency of the entire production process, but also ensure that the raw materials are separated according to the correct particle size, and the particle composition of the produced dry mortar is more in line with the expected design requirements.

[0038] The working principle of the utility model is as follows: when it is necessary to use the device to screen the dry mortar raw materials, firstly, the raw materials are put into the screening box 11 through the feed hopper 12, and the raw materials entering the screening box 11 will fall into the top of the screening plate 33 located at the top, and the vibration motor 341 is turned on to drive the three sliding frames 32 to shake up and down at the same time through the mounting frame 34, so that the corresponding screening plate 33 can shake, and the sliding frame 32 will squeeze the springs 312 corresponding to the four corners when shaking, and the raw materials falling into the top of the screening plate 33 will fall into the top of the screening plate 33 below as it shakes, and the larger ones will be discharged from the corresponding discharge plate 14 on the right as it shakes, and the raw materials can be screened into sizes of various specifications through several screening plates 33, which can better meet the workability and strength requirements of concrete.

[0039] When the screening plate 33 inside the device is damaged and needs to be replaced, first open the two rotating doors 13 to find the damaged screening plate 33, and rotate the corresponding rotating block 332 counterclockwise. When the rotating block 332 rotates, it will drive the threaded rod 331 to rotate counterclockwise, and the threaded rod 331 will move toward the front during the counterclockwise rotation. When the threaded rod 331 moves toward the front, it will drive the limiting block 333 to move toward the front. When the limiting block 333 moves a certain distance, the bottom of the limiting block 333 is separated from the top of the screening plate 33. After the limiting block 333 is separated from the screening plate 33, the limiting block 333 is rotated to release the restriction on the screening plate 33, so that the damaged screening plate 33 can be directly pulled out of the top of the sliding frame 32 for replacement, and there is no need to disassemble the screening mechanism as a whole. This can not only reduce the maintenance time of the staff and improve the screening efficiency of the device for dry mixed mortar raw materials, but also reduce the manpower investment in maintenance and reduce the maintenance cost by only replacing the corresponding damaged screening plate 33.

[0040] When the screening plate 33 is screening the raw materials, the motor 23 is turned on to drive the reciprocating threaded rod 21 to rotate in the inner wall of the screening box 11. When the reciprocating threaded rod 21 rotates, the belt 1 211 and the belt 2 212 can make the three reciprocating threaded rods 21 rotate in the inner wall of the screening box 11 at the same time. When the reciprocating threaded rod 21 rotates, it will drive the bellows 22 to do left and right reciprocating motion inside the screening box 11. When the bellows 22 moves, the fan 24 is turned on to generate wind force to the corresponding bellows 22 through several hoses 241. The wind entering the bellows 22 will be blown to the corresponding bottom of the screening plate 33 through several wind holes on the top of the bellows 22, which can prevent the dry mortar raw materials from being stuck in the gap of the screening plate 33. It can not only effectively prevent the raw materials from being stuck in the gap, keep the sieve holes unobstructed, and improve the efficiency of the entire production process, but also ensure that the raw materials are separated according to the correct particle size, and the particle composition of the produced dry mortar is more in line with the expected design requirements.

[0041] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An energy-saving dry-mixed mortar production raw material screening device for building construction, comprising a support frame (1), a screening box (11) being fixedly connected to the inner surface of the top of the four corners of the support frame (1), a feed hopper (12) being fixedly connected to the top of the screening box (11), two rotating doors (13) being rotatably connected to the front of the screening box (11), and three discharge plates (14) being fixedly connected to the right end of the screening box (11), characterized in that: An anti-blocking component (2) is arranged inside the screening box (11), and a screening component (3) is arranged inside the screening box (11); The screening assembly (3) comprises three sliding frames (32), the three sliding frames (32) being arranged in a linear array, the top inner wall of the sliding frame (32) being slidably connected to a screening plate (33), the left and right inner walls of the front side of the sliding frame (32) being threadedly connected to threaded rods (331), the front sides of the two threaded rods (331) being fixedly connected to rotating blocks (332), the outer surfaces of the two threaded rods (331) being rotatably connected to limiting blocks (333), and the bottoms of the back sides of the two limiting blocks (333) being in close contact with the top of the screening plate (33) on the same side.

2. The energy-saving dry-mixed mortar production raw material screening device for building construction according to claim 1 is characterized by: The four corners of the inner wall of the screening box (11) are fixedly connected to a connecting frame (31), the inner walls of the four connecting frames (31) are fixedly connected to a fixing rod (311), and the outer surfaces of the four fixing rods (311) are slidably connected to the inner wall of the sliding frame (32) on the same side.

3. The energy-saving dry-mixed mortar production raw material screening device for building construction according to claim 2 is characterized by: Three springs (312) are sleeved on the outer surface of the fixed rod (311), the tops of the three springs (312) are fixedly connected to the bottom of the sliding frame (32) on the same side, and the bottoms of the three springs (312) are fixedly connected to the inner wall of the connecting frame (31).

4. The energy-saving dry-mixed mortar production raw material screening device for building construction according to claim 3 is characterized by: The three sliding frames (32) are fixedly connected to two connecting plates (321) at their mutually adjacent ends, the sliding frame (32) at the bottom is fixedly connected to a mounting frame (34) at the bottom, and the mounting frame (34) is fixedly connected to a vibration motor (341) at the bottom.

5. The energy-saving dry-mixed mortar production raw material screening device for building construction according to claim 1 is characterized by: The anti-blocking assembly (2) comprises three reciprocating threaded rods (21), the left and right outer surfaces of the three reciprocating threaded rods (21) are rotatably connected to the inner wall of the screening box (11), and the three reciprocating threaded rods (21) are arranged in a linear array.

6. The energy-saving dry-mixed mortar production raw material screening device for building construction according to claim 5 is characterized by: The outer surface of the reciprocating threaded rod (21) at the center and the outer surface of the reciprocating threaded rod (21) at the top are jointly connected to a belt 1 (211); the outer surface of the reciprocating threaded rod (21) at the center and the outer surface of the reciprocating threaded rod (21) at the bottom are jointly connected to a belt 2 (212); the left end of the screening box (11) is fixedly connected to a motor (23); the output end of the motor (23) is fixedly connected to the left end of the reciprocating threaded rod (21) at the center.

7. The energy-saving dry-mixed mortar production raw material screening device for building construction according to claim 6 is characterized by: The outer surfaces of the three reciprocating threaded rods (21) are all threadedly connected to a bellows (22); the back of the screening box (11) is provided with three square recessed holes; the outer surfaces of the back of the three bellows (22) are all slidably connected to the inner wall of the square recessed holes on the same side; the right ends of the three bellows (22) are all fixedly connected to a hose (241); the top of the screening box (11) is fixedly connected to a fan (24); the top fronts of the three hoses (241) are all fixedly connected to the back of the fan (24).

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