A sand-scooping and mixing device

Abstract

The present application relates to the field of sand mixing, in particular to a sand shoveling and mixing device, comprising a pushing mechanism, a sand shoveling frame, a four-side mixing mechanism, a middle mixing mechanism and a square collecting hopper, the sand shoveling frame being located inside the square collecting hopper, the sand shoveling and mixing device moves the sand shoveling frame through the pushing mechanism, and cleans the sand blocks during the mixing process, so that sand blocks are not left on the inner wall of the collecting hopper at the end of the mixing process, and during the process of shoveling the sand blocks, the four-side mixing mechanism also descends, and drives the four-side mixing mechanism to rotate during the descending process, on the one hand, the sand blocks are pushed into a position where they can be mixed by the middle mixing mechanism, and on the other hand, the sand blocks are hit during the rotating process, so that the sand blocks are broken, and the descending power is converted into the rotating force of the rotating shaft in this way, instead of the motor-driven rotating mode, so that the motor is not damaged by the dust of the sand and gravel and cannot be used.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of sand mixing, in particular to a sand scraping and mixing device. BACKGROUND

[0002] When mixing small batches of dry-mixed plastering mortar, different proportions of raw materials are often added to a square hopper, and then the raw materials are mixed and stirred by starting the stirring equipment. After stirring, the mortar is packaged. When manufacturing different types of mortar, the same square hopper is used, but the proportions of raw materials for each type of mortar are different. When manufacturing another type of mortar, the inner wall of the hopper often needs to be scraped clean to reduce the influence of the previous raw materials. The scraped sand blocks (mixed blocks of raw materials containing multiple raw materials) will be discharged along the discharge port and then cleaned and discarded by workers. This cleaning method consumes a lot of time for workers to scrape the sand blocks and clean the fallen sand blocks. Since the cleaned sand blocks can only be discarded, a large amount of raw materials will be wasted over a long period of time. SUMMARY

[0003] The purpose of the present application is to provide a sand scraping and mixing device.

[0004] To achieve this purpose, the present application adopts the following technical solutions:

[0005] A sand scraping and mixing device is provided, which includes a pushing mechanism, a sand scraping frame, a four-side stirring mechanism, a middle stirring mechanism, and a square hopper. The sand scraping frame is located inside the square hopper, and the outer edge of the sand scraping frame is attached to the inner edge of the square hopper. The sand scraping frame is fixedly installed on the pushing mechanism, which is used to push the sand scraping frame downward along the inner wall of the square hopper. The four-side stirring mechanism is fixedly installed on the pushing mechanism, and the pushing mechanism is used to drive the four-side stirring mechanism to move downward while working, so that the four-side stirring mechanism stirs the scraped sand blocks. The four-side stirring mechanism includes a pushing and rotating mechanism, four rotating seats, rotating shafts, and impellers. The four rotating seats are fixedly installed on the pushing mechanism. The four impellers are located on the four sides of the inner edge of the square hopper and are used to stir the scraped sand blocks inward during the downward movement of the impellers. The four impellers are fixedly installed on the four rotating shafts, which are rotatably installed on the rotating seats. The pushing and rotating mechanism is used to simultaneously drive the four impellers to rotate.

[0006] Further, the pushing and rotating mechanism includes a transmission bar and eight transmission wheels. Every two transmission wheels are fixedly installed on the two ends of a rotating shaft. The transmission wheels on the same side of the two rotating shafts are meshed with each other. The transmission wheels are provided with transmission columns for meshing. The transmission bar is provided with drive columns for driving the transmission wheels to rotate. The transmission bar is fixedly installed on the square hopper through a connecting pipe.

[0007] Further, the pushing mechanism comprises a pushing column, a rack and a first driver, the bottom end of the pushing column is fixedly connected with the sand shoveling frame, the rack is fixedly connected with the pushing column through a connecting frame, and the first driver is used for driving the rack to push the pushing column downward.

[0008] Further, the first driver comprises a gear, a first rotating shaft, a second rotating shaft and a driving motor, the gear is engaged with the rack, the gear is fixedly installed on one end of the first rotating shaft, the first rotating shaft is fixedly installed on the outer edge of the square collecting hopper through a shaft seat, the second rotating shaft is in transmission connection with the other end of the first rotating shaft through a first gear set, and the driving motor is in transmission connection with the second rotating shaft through a second gear set.

[0009] Further, the middle stirring mechanism comprises a mounting frame, a second driver and a stirring paddle, the mounting frame is fixedly installed on the square collecting hopper, the second driver is fixedly installed on the mounting frame, the second driver is used for driving the stirring paddle to rotate, and the stirring paddle is inserted into the square collecting hopper and used for stirring the sand and stones in the square collecting hopper.

[0010] Further, the stirring paddle comprises a rotating shaft, an outer pushing mechanism, an extension rod and a stirring rod, one end of the rotating shaft is fixedly connected with the output end of the second driver, the stirring rod is fixedly installed on the rotating shaft through a connecting ring, the extension rod is slidably installed on the outer edge of the stirring rod, and the outer pushing mechanism is used for pushing the extension rod to slide along the stirring rod.

[0011] Further, the stirring rod is provided with a plurality of stirring rods from top to bottom, a sliding frame is sleeved on the outer edges of the plurality of stirring rods, and the extension rod is fixedly installed on the sliding frame.

[0012] Further, the outer pushing mechanism comprises a pushing ring, a displacement rod, a hinged rod, a driving rod and an arc-shaped fixing plate, the pushing ring is sleeved on the rotating shaft, the displacement rod is fixedly installed on the outer edge of the pushing ring, the driving rod is fixedly installed on the sliding frame, one end of the hinged rod is hinged with the displacement rod, the other end is hinged with the driving rod, and the arc-shaped fixing plate is fixedly installed on the pushing ring and fixedly connected with the rotating shaft through screws.

[0013] The sand shoveling and stirring device has the advantages that the pushing mechanism drives the sand shoveling frame to move, the sand blocks are cleaned during the stirring and mixing process, the sand blocks are prevented from remaining on the inner wall of the collecting hopper at the end, the four-side stirring mechanism is driven to rotate during the descending of the sand blocks, the sand blocks are pushed into the position capable of being stirred by the middle stirring mechanism, and the sand blocks are beaten during the rotation, so that the sand blocks are broken.

[0014] And through the way of converting the falling power into the rotating force of the rotating shaft, the motor driven rotating way is replaced, the damage of the motor due to the dust of the sandstone is avoided, the resistance of the motor moving in the sandstone is reduced, the four impellers rotate at the same speed at the same time, the falling process is more stable, and the shaking in the falling process is reduced.

[0015] The stirring paddle of the middle stirring mechanism can be adjusted in position, so that the four-side stirring mechanism can be avoided to collide. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly introduced as follows.

[0017] Figure 1 It is a three-dimensional structure schematic diagram of the present application;

[0018] Figure 2 It is a three-dimensional structure schematic diagram of the present application for removing square aggregates;

[0019] Figure 3 It is a three-dimensional structure schematic diagram of the four-side stirring mechanism;

[0020] Figure 4 It is a partial three-dimensional structure schematic diagram of the four-side stirring mechanism;

[0021] Figure 5 It is a three-dimensional structure schematic diagram of the pushing mechanism;

[0022] Figure 6 It is a three-dimensional structure schematic diagram of the middle stirring mechanism;

[0023] Figure 7 It is a partial three-dimensional structure schematic diagram of the middle stirring mechanism;

[0024] In the drawings: 1, pushing mechanism; 1a, pushing column; 1b, rack; 1c, first driver; 1c1, gear; 1c2, first rotating shaft; 1c3, second rotating shaft; 1c4, driving motor; 2, sand shoveling frame; 3, four-side stirring mechanism; 3a, pushing and rotating mechanism; 3a1, transmission wheel; 3a2, transmission bar; 3b, impeller; 3c, rotating shaft; 3d, rotating seat; 4, middle stirring mechanism; 4a, mounting frame; 4b, second driver; 4c, rotating shaft; 4d, outer pushing mechanism; 4d1, pushing ring; 4d2, displacement rod; 4d3, hinged rod; 4d4, driving rod; 4d5, arc-shaped fixed plate; 4e, extension rod; 4f, stirring rod; 4h, sliding frame; 5, square aggregate hopper. DETAILED DESCRIPTION

[0025] The technical solutions of the present application will be further illustrated by the specific embodiments in combination with the drawings.

[0026] The drawings are only used for illustrative description, and the representation is a schematic diagram rather than a physical diagram, and cannot be understood as a limitation of the patent; in order to better illustrate the embodiments of the present application, some components of the drawings are omitted, enlarged or reduced, and do not represent the size of the actual product.

[0027] Referring to Figures 1-2 The sand shoveling and stirring device shown in the figure comprises a downward pushing mechanism 1, a sand shoveling frame 2, a four-side stirring mechanism 3, a middle stirring mechanism 4 and a square collecting hopper 5. The sand shoveling frame 2 is located inside the square collecting hopper 5, and the outer edge of the sand shoveling frame 2 is attached to the inner edge of the square collecting hopper 5. The sand shoveling frame 2 is fixedly installed on the downward pushing mechanism 1. The downward pushing mechanism 1 is used to push the sand shoveling frame 2 downward to move along the inner wall of the square collecting hopper 5. The four-side stirring mechanism 3 is fixedly installed on the downward pushing mechanism 1. The downward pushing mechanism 1 is used to drive the four-side stirring mechanism 3 to move downward, and the four-side stirring mechanism 3 works at the same time when it moves downward, so that the four-side stirring mechanism 3 stirs the sand blocks that are shovelled off.

[0028] As Figure 3 shown, the four-side stirring mechanism 3 comprises a downward pushing and rotating mechanism 3a, four rotating seats 3d, rotating shafts 3c and impellers 3b. The four rotating seats 3d are fixedly installed on the downward pushing mechanism 1. The four impellers 3b are respectively located on the four sides of the inner edge of the square collecting hopper 5, and are used to stir the shovelled-off sand blocks inward during the downward movement of the impellers 3b. The four impellers 3b are respectively fixedly installed on the rotating shafts 3c. The rotating shafts 3c are rotatably installed on the rotating seats 3d. The downward pushing and rotating mechanism 3a is used to simultaneously drive the four impellers 3b to rotate.

[0029] In the present application, as Figure 4As shown, the downward rotating mechanism 3a comprises a transmission bar 3a2 and eight transmission wheels 3a1, every two transmission wheels 3a1 are fixedly installed at two ends of a rotating shaft 3c, the transmission wheels 3a1 on the same side of the two rotating shafts 3c are meshed with each other, the transmission wheels 3a1 are provided with transmission columns for meshing, the transmission bar 3a2 is provided with driving columns for driving the transmission wheels 3a1 to rotate, and the transmission bar 3a2 is fixedly installed on the square collecting hopper 5 through a connecting pipe. Through downward movement of the rotating shaft 3c, the rotating shaft 3c drives the transmission wheels 3a1 to move downward, so that the transmission columns on the transmission wheels 3a1 are in contact with the driving columns on the transmission bar 3a2, thereby driving the transmission wheels 3a1 to rotate, the transmission wheels 3a1 drive the rotating shafts 3c to rotate through the transmission columns, and the four rotating shafts 3c are driven to rotate through the fixed connection of the transmission wheels 3a1 and the rotating shafts 3c, so that the four impellers 3b are driven to rotate, thereby driving the impellers 3b to stir the sand blocks inward. Through the mode of converting the downward power into the rotating force of the rotating shaft 3c, the mode of driving rotation by the motor is replaced, so that the damage of the motor due to the dust of the sand and gravel is avoided, the resistance of the motor in the sand and gravel is reduced, the four impellers 3b rotate at the same speed, the downward process is more stable, and the shaking in the downward process is reduced.

[0030] In the application, as shown in the drawings, Figure 5 The downward mechanism 1 comprises a pushing column 1a, a rack 1b and a first driver 1c, the bottom end of the pushing column 1a is fixedly connected with the sand shoveling frame 2, the rack 1b is fixedly connected with the pushing column 1a through a connecting frame, and the first driver 1c is used for driving the rack 1b to push the pushing column 1a downward. The first driver 1c is controlled to work through the controller, so that the first driver 1c drives the rack 1b to move downward through meshing, the rack 1b drives the pushing column 1a to move downward through the connecting frame, the pushing column 1a pushes the sand shoveling frame 2 downward, and the sand shoveling frame 2 shovels the sand blocks on the inner edge of the square collecting hopper 5.

[0031] In the application, as shown in the drawings, Figure 5 The first driver 1c comprises a gear 1c1, a first rotating shaft 1c2, a second rotating shaft 1c3 and a driving motor 1c4, the gear 1c1 is meshed with the rack 1b, the gear 1c1 is fixedly installed at one end of the first rotating shaft 1c2, the first rotating shaft 1c2 is fixedly installed on the outer edge of the square collecting hopper 5 through a shaft seat, the second rotating shaft 1c3 is in transmission connection with the other end of the first rotating shaft 1c2 through a first gear set, and the driving motor 1c4 is in transmission connection with the second rotating shaft 1c3 through a second gear set. The driving motor 1c4 is controlled to work through the controller, so that the driving motor 1c4 drives the second rotating shaft 1c3 to move through the bevel gears meshed with each other, the second rotating shaft 1c3 drives the first rotating shaft 1c2 to rotate through the bevel gears meshed with each other, the first rotating shaft 1c2 drives the gear 1c1 to rotate, and the gear 1c1 drives the rack 1b to move up and down through meshing.

[0032] In the present application, as shown in Figure 6 The middle stirring mechanism 4 includes a mounting frame 4a, a second driver 4b and a stirring paddle, the mounting frame 4a is fixedly installed on the square hopper 5, the second driver 4b is fixedly installed on the mounting frame 4a, the second driver 4b is used to drive the stirring paddle to rotate, the stirring paddle is inserted in the square hopper 5 and used to stir the sand and stone in the square hopper 5. The second driver 4b works to drive the stirring paddle to rotate, and the stirring paddle stirs the raw materials in the square hopper 5 to mix the sand and stone with other substances such as lime powder to form dry-mixed plaster mortar.

[0033] In the present application, as shown in Figure 6 The stirring paddle includes a rotating shaft 4c, an outer pushing mechanism 4d, an extension rod 4e and a stirring rod 4f, one end of the rotating shaft 4c is fixedly connected with the output end of the second driver 4b, the stirring rod 4f is fixedly installed on the rotating shaft 4c through a connecting ring, the extension rod 4e is slidably installed on the outer edge of the stirring rod 4f, and the outer pushing mechanism 4d is used to push the extension rod 4e outward along the stirring rod 4f. After the sand blocks on the inner edge of the square hopper 5 are scooped off, the worker operates the outer pushing mechanism 4d to make the outer pushing mechanism 4d push the extension rod 4e outward to move, and then the extension rod 4e extends outward to increase the stirring range. When it is necessary to scoop off the sand blocks on the inner edge of the square hopper 5, the worker reversely operates the outer pushing mechanism 4d to make the extension rod 4e fold inward to avoid collision with the extension rod 4e when the four-side stirring mechanism 3 moves.

[0034] In the present application, as shown in Figure 7 The stirring rod 4f is provided with a plurality of sliding frames 4h on the outer edges of the plurality of stirring rods 4f, and the extension rod 4e is fixedly installed on the sliding frame 4h. The sliding frame 4h is provided to make the extension rod 4e slide along the stirring rod 4f.

[0035] In the present application, as shown in Figure 7As shown, the outer pushing mechanism 4d includes a pushing ring 4d1, a displacement rod 4d2, a hinged rod 4d3, a driving rod 4d4 and an arc-shaped fixed plate 4d5, the pushing ring 4d1 is sleeved on the rotating shaft 4c, the displacement rod 4d2 is fixedly installed on the outer edge of the pushing ring 4d1, the driving rod 4d4 is fixedly installed on the sliding frame 4h, one end of the hinged rod 4d3 is hinged with the displacement rod 4d2, the other end is hinged with the driving rod 4d4, the arc-shaped fixed plate 4d5 is fixedly installed on the pushing ring 4d1, the arc-shaped fixed plate 4d5 is fixedly connected with the rotating shaft 4c through a screw, and the rotating shaft 4c is provided with a threaded hole connected with the screw. When it is needed to shovel the sand blocks on the inner edge of the square aggregate hopper 5, the pushing ring 4d1 is pulled upwards, so that the pushing ring 4d1 drives the displacement rod 4d2 to move upwards, the displacement rod 4d2 drives the driving rod 4d4 to move through the hinged rod 4d3, the driving rod 4d4 drives the sliding frame 4h to move, so that the sliding frame 4h slides along the stirring rod 4f, the sliding frame 4h drives the extension rod 4e to move towards the rotating shaft 4c, thereby realizing the folding of the extension rod 4e, avoiding collision with the extension rod 4e when the four-side stirring mechanism 3 moves, and vice versa, the pushing ring 4d1 is pushed downwards, the sliding frame 4h pushes the extension rod 4e outward.

[0036] Working principle: after the sand blocks on the inner edge of the square aggregate hopper 5 are shoveled, the outer pushing mechanism 4d is operated by the worker, so that the outer pushing mechanism 4d pushes the extension rod 4e outward to move, thereby extending the extension rod 4e outward to increase the stirring range;

[0037] When it is needed to shovel the sand blocks on the inner edge of the square aggregate hopper 5, the pushing ring 4d1 is pulled upwards, so that the pushing ring 4d1 drives the displacement rod 4d2 to move upwards, the displacement rod 4d2 drives the driving rod 4d4 to move through the hinged rod 4d3, the driving rod 4d4 drives the sliding frame 4h to move, so that the sliding frame 4h slides along the stirring rod 4f, the sliding frame 4h drives the extension rod 4e to move towards the rotating shaft 4c, thereby realizing the folding of the extension rod 4e, avoiding collision with the extension rod 4e when the four-side stirring mechanism 3 moves;

[0038] When the extension rod 4e is folded, the controller is driven by the worker, the controller controls the first driver 1c to work, so that the first driver 1c moves downwards through the meshing driving rack 1b, the rack 1b drives the pushing column 1a downwards through the connecting frame, so that the pushing column 1a pushes the sand shoveling frame 2 downwards, so that the sand shoveling frame 2 shovels the sand blocks on the inner edge of the square aggregate hopper 5;

[0039] In the process of pushing column 1a moving down, pushing column 1a will drive rotating shaft 3c to move down through rotating seat 3d, rotating shaft 3c will drive transmission wheel 3a1 to move down through downward movement, so that the transmission column on transmission wheel 3a1 and the driving column on transmission strip 3a2 are in contact, and then drive transmission wheel 3a1 to rotate, transmission wheel 3a1 will drive four rotating shafts 3c to rotate through the transmission column between each other, and then make four rotating shafts 3c rotate, so that four impellers 3b rotate, and then make impeller 3b turn inward and stir the sand block, so that the stirring of middle stirring mechanism 4 can contact the sand block and mix.

Claims

1. A sand-shoveling and mixing device, characterized in that, The device includes a push mechanism (1), a sand shovel frame (2), a four-sided mixing mechanism (3), a central mixing mechanism (4), and a square hopper (5). The sand shovel frame (2) is located inside the square hopper (5), and the outer edge of the sand shovel frame (2) is attached to the inner edge of the square hopper (5). The sand shovel frame (2) is fixedly installed on the push mechanism (1). The push mechanism (1) is used to push the sand shovel frame (2) downward along the inner wall of the square hopper (5). The four-sided mixing mechanism (3) is fixedly installed on the push mechanism (1). The push mechanism (1) is used to drive the four-sided mixing mechanism (3) downward and works while the four-sided mixing mechanism (3) is moving downward, so that the four-sided mixing mechanism (3) mixes the sand blocks that are shoveled down. The four-sided stirring mechanism (3) includes a downward rotating mechanism (3a), four rotating seats (3d), rotating shafts (3c) and impellers (3b). The four rotating seats (3d) are all fixedly installed on the downward mechanism (1). The four impellers (3b) are located on the four sides of the inner edge of the square collection hopper (5) respectively. They are used to stir the sand blocks that have been shoveled inward during the downward movement of the impellers (3b). The four impellers (3b) are fixedly installed on the four rotating shafts (3c). The rotating shafts (3c) are rotatably installed on the rotating seats (3d). The downward rotating mechanism (3a) is used to drive the four impellers (3b) to rotate simultaneously.

2. The sand-shoveling and mixing device according to claim 1, characterized in that, The downward rotating mechanism (3a) includes a transmission bar (3a2) and eight transmission wheels (3a1). Every two transmission wheels (3a1) are fixedly installed at both ends of a rotating shaft (3c). The transmission wheels (3a1) on the same side of the two rotating shafts (3c) mesh with each other. The transmission wheels (3a1) are provided with transmission columns for meshing. The transmission bar (3a2) is provided with drive columns for driving the transmission wheels (3a1) to rotate. The transmission bar (3a2) is fixedly installed on the square collection hopper (5) through a connecting pipe.

3. The sand-shoveling and mixing device according to claim 2, characterized in that, The pushing mechanism (1) includes a push column (1a), a rack (1b) and a first driver (1c). The bottom end of the push column (1a) is fixedly connected to the sand shovel frame (2). The rack (1b) is fixedly connected to the push column (1a) through a connecting frame. The first driver (1c) is used to drive the rack (1b) to push the push column (1a) downward.

4. The sand-shoveling and mixing device according to claim 3, characterized in that, The first driver (1c) includes a gear (1c1), a first rotating shaft (1c2), a second rotating shaft (1c3), and a drive motor (1c4). The gear (1c1) meshes with a rack (1b). The gear (1c1) is fixedly mounted on one end of the first rotating shaft (1c2). The first rotating shaft (1c2) is fixedly mounted on the outer edge of the square collection hopper (5) through a shaft seat. The second rotating shaft (1c3) is connected to the other end of the first rotating shaft (1c2) through a first gear set. The drive motor (1c4) is connected to the second rotating shaft (1c3) through a second gear set.

5. The sand-shoveling and mixing device according to claim 1, characterized in that, The central mixing mechanism (4) includes a mounting frame (4a), a second driver (4b), and a mixing paddle. The mounting frame (4a) is fixedly mounted on the square hopper (5), and the second driver (4b) is fixedly mounted on the mounting frame (4a). The second driver (4b) is used to drive the mixing paddle to rotate. The mixing paddle is inserted inside the square hopper (5) to mix the sand and gravel inside the square hopper (5).

6. The sand-shoveling and mixing device according to claim 5, characterized in that, The stirring paddle includes a rotating shaft (4c), an outward pushing mechanism (4d), an extension rod (4e), and a stirring rod (4f). One end of the rotating shaft (4c) is fixedly connected to the output end of the second driver (4b). The stirring rod (4f) is fixedly mounted on the rotating shaft (4c) by a connecting ring. The extension rod (4e) is slidably mounted on the outer edge of the stirring rod (4f). The outward pushing mechanism (4d) is used to push the extension rod (4e) to slide along the stirring rod (4f) from the outside.

7. A sand-shoveling and mixing device according to claim 6, characterized in that, Several stirring rods (4f) are arranged from top to bottom. A sliding frame (4h) is fitted on the outer edge of several stirring rods (4f), and an extension rod (4e) is fixedly installed on the sliding frame (4h).

8. The sand-shoveling and mixing device according to claim 7, characterized in that, The push mechanism (4d) includes a push ring (4d1), a displacement rod (4d2), a hinge rod (4d3), a drive rod (4d4), and an arc-shaped fixing plate (4d5). The push ring (4d1) is sleeved on the rotating shaft (4c). The displacement rod (4d2) is fixedly installed on the outer edge of the push ring (4d1). The drive rod (4d4) is fixedly installed on the slide frame (4h). One end of the hinge rod (4d3) is hinged to the displacement rod (4d2), and the other end is hinged to the drive rod (4d4). The arc-shaped fixing plate (4d5) is fixedly installed on the push ring (4d1). The arc-shaped fixing plate (4d5) is fixedly connected to the rotating shaft (4c) by screws. The rotating shaft (4c) is provided with threaded holes for connecting to screws.

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