Gravel proportioning and feeding equipment

Abstract

The utility model relates to the technical field of concrete production, and discloses gravel proportioning and feeding equipment which comprises a first support, a second support, a third support, a sand bin arranged on the first support and a gravel bin arranged on the first support, a first conveying roller is rotationally arranged on the second support, a first conveying belt is arranged on the first conveying roller, and a second conveying belt is arranged on the third support. A second conveying roller is rotationally arranged on the third support, a second conveying belt is arranged on the second conveying roller, a first discharging opening is formed in the bottom of the stone bin, and a second discharging opening is formed in the bottom of the sand bin; the utility model provides gravel proportioning and feeding equipment which has the effect of ensuring the stability of concrete performance.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete production, in particular to sand and gravel proportioning feeding equipment. Background Art

[0002] Concrete is a general term for engineering composite materials that are made of aggregates bonded together by cementitious materials. Usually, concrete refers to an artificial stone made of cement as the main cementitious material, mixed with water, sand, gravel, and if necessary, chemical admixtures and mineral admixtures in appropriate proportions, and then evenly stirred, compacted, formed, and cured and hardened. The ratio of sand and gravel directly affects the performance of concrete; therefore, the ratio of sand and gravel is very important in the actual concrete mixing process.

[0003] In the process of mixing sand and gravel, workers usually mix the sand and gravel according to their experience, which may lead to unstable performance of concrete. Utility Model Content

[0004] The utility model aims to provide a sand and gravel proportioning feeding device, which has the effect of ensuring the stability of concrete performance.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions: comprising a first bracket, a second bracket, a third bracket, a sand bin arranged on the first bracket, and a stone bin arranged on the first bracket, the second bracket is rotatably provided with a first feed roller, the first feed roller is provided with a first conveyor belt, the third bracket is rotatably provided with a second feed roller, the second feed roller is provided with a second conveyor belt, a first discharge port is provided at the bottom of the stone bin, the first discharge port is located directly above the first conveyor belt, a second discharge port is provided at the bottom of the sand bin, a storage frame is provided on the third bracket, the second discharge port is located directly above the storage frame, the storage frame is located directly above the second conveyor belt, an end of the first conveyor belt close to the sand bin is located directly above the storage frame, a first control mechanism for controlling the opening and closing of the first discharge port is provided on the stone bin, a second control mechanism for controlling the opening and closing of the second discharge port is provided on the sand bin, a first weighing device is provided on the second bracket, and a second weighing device is provided on the third bracket.

[0006] The utility model is further configured as follows: the first control mechanism includes a first fixed block symmetrically arranged at the bottom of the stone bin in the vertical direction, a first discharge door movably arranged between the two first fixed blocks, and a first rotating rod rotatably arranged between the two first fixed blocks in the horizontal direction; the first discharge door can be movably fitted to the first discharge port; a first rotating gear is arranged on the first rotating rod; a first driving rack meshing with the first rotating gear is horizontally arranged at the bottom of the first discharge door; and a first driving motor for driving the first rotating rod is arranged on the first fixed block.

[0007] The utility model is further configured as follows: the second control mechanism includes a second fixed block symmetrically arranged at the bottom of the sand bin in the vertical direction, a second discharge door movably arranged between the two second fixed blocks, and a second rotating rod rotatably arranged between the two second fixed blocks in the horizontal direction; the second discharge door can be movably fitted to the second discharge port; a second rotating gear is arranged on the second rotating rod; a second driving rack meshing with the second rotating gear is horizontally arranged at the bottom of the second discharge door; and a second driving motor for driving the second rotating rod is arranged on the second fixed block.

[0008] The utility model is further configured as follows: a first long movable groove is symmetrically opened at the bottom of the stone bin along the horizontal direction, a first movable block matching with the first movable groove is arranged on the first discharge door, and a second long movable groove is symmetrically opened at the bottom of the sand bin along the horizontal direction, and a second movable block matching with the second movable groove is arranged on the second discharge door.

[0009] The utility model is further configured as follows: a first rotating wheel is rotatably provided on the first moving block, and the first rotating wheel is movably fitted to the top of the first moving groove; a second rotating wheel is rotatably provided on the second moving block, and the second rotating wheel is movably fitted to the top of the second moving groove.

[0010] The utility model is further configured as follows: a first elongated movable hole is provided on the first fixed block, and an end portion of the first discharge door is movably fitted to an inner wall of the first movable hole; a second elongated movable hole is provided on the second fixed block, and an end portion of the second discharge door is movably fitted to an inner wall of the second movable hole.

[0011] The utility model is further configured as follows: blocking blocks are symmetrically arranged on both sides of the second bracket.

[0012] The utility model is further configured as follows: the material storage frame is in a shape of being wide at the top and narrow at the bottom.

[0013] The utility model is further configured as follows: elastic material baffle plates are symmetrically arranged at the bottom of the material storage frame, and the elastic material baffle plates are movably fitted to the second conveyor belt.

[0014] The utility model is further configured as follows: the cross-sections of the first discharge port and the second discharge port are in the shape of long strips.

[0015] The beneficial effects of the utility model are:

[0016] 1. By setting a sand bin, a stone bin and a first weighing device, when sand and stone are needed to be proportioned, the first control mechanism is first opened to drive the first discharge port to open, and the stone falls from the stone bin into the first conveyor belt. At the same time, the first weighing device weighs and counts the fallen stone. When the amount of the fallen stone reaches the requirement, the first control mechanism drives the first discharge port to close, and then drives the first feeding roller to rotate, and conveys the stone on the first conveyor belt to the storage frame. After that, the second control mechanism drives the second discharge port to open, and the sand falls from the sand bin into the storage frame. At the same time, the second weighing device weighs and counts the fallen sand. When the amount of the fallen sand reaches the requirement, the second driving mechanism drives the second discharge port to close. At this time, the quantitatively proportioned sand and stone are in the storage frame. Finally, the second feeding roller is driven to rotate, and the second conveyor belt can convey the mixed sand and stone to the designated place. By quantitatively weighing and proportioning the sand and stone, the accuracy of the sand and stone proportion is ensured, thereby achieving the purpose of ensuring the stability of concrete performance.

[0017] 2. By setting the first discharge door, the second discharge door and the first driving rack, etc., and turning on the first driving motor and the second driving motor, the first rotating rod and the second rotating rod can be driven to rotate respectively, thereby driving the first rotating gear and the second rotating gear to rotate, and then the first discharge door and the second discharge door move with the first driving rack and the second driving rack respectively, thereby realizing the control of the opening and closing of the first discharge port and the second discharge port. The structure is simple and practical, and the operation is convenient.

[0018] 3. By setting the first rotating wheel and the second rotating wheel, the sliding friction between the first discharge door and the first moving groove and between the second discharge door and the second moving groove is converted into rolling friction, so that the friction force during the movement of the first discharge door and the second discharge door is smaller, the movement process is smoother, and the service life of the equipment is improved.

[0019] 4. By setting the first movable hole and the second movable hole, the two ends of the first discharge door and the second discharge door are respectively in contact with the first fixed block and the second fixed block, sharing the gravity effect of gravel and sand on the first discharge door and the second discharge door, extending the service life of the equipment, and further limiting the first discharge door and the second discharge door at the same time to avoid deviation of the two ends of the first discharge door and the second discharge door, affecting the closure of the first discharge port and the second discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a structural schematic diagram of an embodiment of a sand and gravel proportioning feeding device of the utility model;

[0022] Figure 2 It is a partial structural schematic diagram of an embodiment of a sand and gravel proportioning feeding device of the utility model;

[0023] Figure 3 yes Figure 2 A is an enlarged schematic diagram;

[0024] Figure 4 yes Figure 2 A magnified schematic diagram of B.

[0025] In the figure, 1, the first bracket; 2, the second bracket; 3, the third bracket; 4, the sand bin; 5, the stone bin; 6, the first feed roller; 7, the first conveyor belt; 8, the second feed roller; 9, the second conveyor belt; 10, the first discharge port; 11, the second discharge port; 12, the storage frame; 13, the first control mechanism; 13a, the first fixed block; 13b, the first discharge door; 13c, the first rotating rod; 14, the second control mechanism; 14a, the second fixed block; 14b, the second discharge door; 14c, the second Rotating rod; 15, first weighing device; 16, second weighing device; 17, first rotating gear; 18, first driving rack; 19, first driving motor; 20, second rotating gear; 21, second driving rack; 22, second driving motor; 23, first moving groove; 24, first moving block; 25, second moving groove; 26, second moving block; 27, first rotating wheel; 28, second rotating wheel; 29, first moving hole; 30, second moving hole; 31, material blocking block; 32, elastic material blocking plate. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model provides a sand and gravel proportioning feeding device, such as Figures 1 to 4 As shown, it includes a first bracket 1, a second bracket 2, a third bracket 3, a sand bin 4 arranged on the first bracket 1, and a stone bin 5 arranged on the first bracket 1, a first feed roller 6 is rotatably arranged on the second bracket 2, a first conveyor belt 7 is arranged on the first feed roller 6, a second feed roller 8 is rotatably arranged on the third bracket 3, a second conveyor belt 9 is arranged on the second feed roller 8, a first discharge port 10 is opened at the bottom of the stone bin 5, and the first discharge port 10 is located directly above the first conveyor belt 7, a second discharge port 11 is opened at the bottom of the sand bin 4, and the A storage frame 12 is provided on the third bracket 3, the second discharge port 11 is located directly above the storage frame 12, the storage frame 12 is located directly above the second conveyor belt 9, the end of the first conveyor belt 7 close to the sand bin 4 is located directly above the storage frame 12, the stone bin 5 is provided with a first control mechanism 13 for controlling the opening and closing of the first discharge port 10, the sand bin 4 is provided with a second control mechanism 14 for controlling the opening and closing of the second discharge port 11, the second bracket 2 is provided with a first weighing device 15, and the third bracket 3 is provided with a second weighing device 16.

[0028] Further, the first control mechanism 13 includes a first fixed block 13a symmetrically arranged at the bottom of the stone bin 5 in the vertical direction, a first discharge gate 13b movably arranged between the two first fixed blocks 13a, and a first rotating rod 13c rotatably arranged between the two first fixed blocks 13a in the horizontal direction, the first discharge gate 13b can be movably fitted to the first discharge port 10, the first rotating rod 13c is provided with a first rotating gear 17, the bottom of the first discharge gate 13b is horizontally provided with a first driving rack 18 meshing with the first rotating gear 17, and the first fixed block 13a is provided with a first driving motor 19 for driving the first rotating rod 13c.

[0029] Furthermore, the second control mechanism 14 includes a second fixed block 14a symmetrically arranged at the bottom of the sand bin 4 in the vertical direction, a second discharge gate 14b movably arranged between the two second fixed blocks 14a, and a second rotating rod 14c rotatably arranged between the two second fixed blocks 14a in the horizontal direction, the second discharge gate 14b can be movably fitted to the second discharge port 11, the second rotating rod 14c is provided with a second rotating gear 20, the bottom of the second discharge gate 14b is horizontally provided with a second driving rack 21 meshing with the second rotating gear 20, and the second fixed block 14a is provided with a second driving motor 22 for driving the second rotating rod 14c.

[0030] Furthermore, the bottom of the gravel bin 5 is symmetrically provided with a long first movable groove 23 in the horizontal direction, and the first discharge door 13b is provided with a first movable block 24 that cooperates with the first movable groove 23. The bottom of the sand bin 4 is symmetrically provided with a long second movable groove 25 in the horizontal direction, and the second discharge door 14b is provided with a second movable block 26 that cooperates with the second movable groove 25.

[0031] Furthermore, a first rotating wheel 27 is rotatably provided on the first moving block 24 , and the first rotating wheel 27 is movably fitted to the top of the first moving groove 23 , and a second rotating wheel 28 is rotatably provided on the second moving block 26 , and the second rotating wheel 28 is movably fitted to the top of the second moving groove 25 .

[0032] Furthermore, the first fixed block 13a is provided with a first elongated movable hole 29, and the end of the first discharge door 13b is movably fitted to the inner wall of the first movable hole 29; the second fixed block 14a is provided with a second elongated movable hole 30, and the end of the second discharge door 14b is movably fitted to the inner wall of the second movable hole 30.

[0033] Furthermore, stop blocks 31 are symmetrically arranged on both sides of the second bracket 2 .

[0034] Furthermore, the material storage frame 12 is in a shape of being wide at the top and narrow at the bottom.

[0035] Furthermore, an elastic material baffle plate 32 is symmetrically arranged at the bottom of the material storage frame 12 , and the elastic material baffle plate 32 is movably fitted to the second conveyor belt 9 .

[0036] Furthermore, the cross-sections of the first discharge port 10 and the second discharge port 11 are long strips.

[0037] When sand and gravel mixing is required, the first drive motor 19 is first turned on to drive the first rotating rod 13c and the first driving gear to rotate, so that the first discharge door 13b and the first driving rack 18 move accordingly, the first discharge port 10 is opened, and the stones fall from the stone bin 5 into the first conveyor belt 7. At the same time, the first weighing device 15 weighs and counts the fallen stones. When the amount of fallen stones reaches the requirement, the first drive motor 19 drives the first rotating rod 13c and the first driving gear to rotate in the opposite direction, and the first discharge door 13b and the first driving rack 18 are close to the first discharge port 10 until the first discharge port 10 is closed. Then the first feeding roller 6 is driven to rotate to transport the stones on the first conveyor belt 7 to the storage frame 12. Then the second drive motor 22 is turned on to drive the second rotating rod 14c and the second driving gear The second discharging door 14b and the second driving rack 21 move accordingly, the second discharging port 11 opens, and the sand falls from the sand bin 4 into the storage frame 12. At the same time, the second weigher 16 weighs and counts the fallen sand. When the amount of sand falling reaches the requirement, the second driving motor 22 drives the second rotating rod 14c and the second driving gear to rotate in the opposite direction, and the second discharging door 14b and the second driving rack 21 approach the second discharging port 11 until the second discharging port 11 is closed. At this time, the quantitatively proportioned sand and gravel are in the storage frame 12. Finally, the second feeding roller 8 is driven to rotate, and the second conveyor belt 9 can transport the mixed sand and gravel to the designated place. By quantitatively weighing and proportioning the sand and gravel, the accuracy of the sand and gravel proportion is ensured, thereby achieving the purpose of ensuring the stability of concrete performance.

[0038] By setting the first rotating wheel 27 and the second rotating wheel 28, the sliding friction between the first discharge door 13b and the first moving groove 23 and the second discharge door 14b and the second moving groove 25 is converted into rolling friction, so that the friction force during the movement of the first discharge door 13b and the second discharge door 14b is smaller, the movement process is smoother, and the service life of the equipment is improved.

[0039] By setting the first movable hole 29 and the second movable hole 30, the two ends of the first discharge door 13b and the second discharge door 14b are respectively in contact with the first fixed block 13a and the second fixed block 14a, sharing the gravity effect of gravel and sand on the first discharge door 13b and the second discharge door 14b, thereby extending the service life of the equipment. At the same time, the first discharge door 13b and the second discharge door 14b are further limited to avoid deviation of the two ends of the first discharge door 13b and the second discharge door 14b, which affects the closure of the first discharge port 10 and the second discharge port 11.

[0040] By providing the blocking block 31 and the elastic blocking plate 32, gravel and sand are prevented from falling from both sides of the first conveyor belt 7 and the second conveyor belt 9 respectively, thereby preventing the final mix ratio of sand and gravel from being affected.

[0041] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0042] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A sand and gravel proportioning feeding equipment, characterized by: The invention comprises a first bracket (1), a second bracket (2), a third bracket (3), a sand bin (4) arranged on the first bracket (1), and a gravel bin (5) arranged on the first bracket (1); a first feed roller (6) is rotatably arranged on the second bracket (2); a first conveyor belt (7) is arranged on the first feed roller (6); a second feed roller (8) is rotatably arranged on the third bracket (3); a second conveyor belt (9) is arranged on the second feed roller (8); a first discharge port (10) is provided at the bottom of the gravel bin (5); the first discharge port (10) is located directly above the first conveyor belt (7); a second discharge port (11) is provided at the bottom of the sand bin (4); The third bracket (3) is provided with a storage frame (12), the second discharge port (11) is located directly above the storage frame (12), the storage frame (12) is located directly above the second conveyor belt (9), one end of the first conveyor belt (7) close to the sand bin (4) is located directly above the storage frame (12), the gravel bin (5) is provided with a first control mechanism (13) for controlling the opening and closing of the first discharge port (10), the sand bin (4) is provided with a second control mechanism (14) for controlling the opening and closing of the second discharge port (11), the second bracket (2) is provided with a first weighing device (15), and the third bracket (3) is provided with a second weighing device (16).

2. A sand and gravel proportioning feeding equipment according to claim 1, characterized in that: The first control mechanism (13) comprises a first fixed block (13a) symmetrically arranged at the bottom of the stone bin (5) in the vertical direction, a first discharge door (13b) movably arranged between the two first fixed blocks (13a), and a first rotating rod (13c) rotatably arranged between the two first fixed blocks (13a) in the horizontal direction, the first discharge door (13b) can be movably fitted to the first discharge port (10), the first rotating rod (13c) is provided with a first rotating gear (17), the bottom of the first discharge door (13b) is horizontally provided with a first driving rack (18) meshing with the first rotating gear (17), and the first fixed block (13a) is provided with a first driving motor (19) for driving the first rotating rod (13c).

3. A sand and gravel proportioning feeding equipment according to claim 2, characterized in that: The second control mechanism (14) comprises a second fixed block (14a) symmetrically arranged at the bottom of the sand bin (4) in the vertical direction, a second discharge door (14b) movably arranged between the two second fixed blocks (14a), and a second rotating rod (14c) rotatably arranged between the two second fixed blocks (14a) in the horizontal direction, the second discharge door (14b) can be movably fitted to the second discharge port (11), the second rotating rod (14c) is provided with a second rotating gear (20), the bottom of the second discharge door (14b) is horizontally provided with a second driving rack (21) meshing with the second rotating gear (20), and the second fixed block (14a) is provided with a second driving motor (22) for driving the second rotating rod (14c).

4. The sand and gravel proportioning feeding equipment according to claim 3 is characterized by: The bottom of the stone bin (5) is symmetrically provided with a long first movable groove (23) in the horizontal direction, and the first discharge door (13b) is provided with a first movable block (24) that matches the first movable groove (23). The bottom of the sand bin (4) is symmetrically provided with a long second movable groove (25) in the horizontal direction, and the second discharge door (14b) is provided with a second movable block (26) that matches the second movable groove (25).

5. The sand and gravel proportioning feeding equipment according to claim 4 is characterized in that: A first rotating wheel (27) is rotatably provided on the first moving block (24), and the first rotating wheel (27) is movably fitted to the top of the first moving groove (23); a second rotating wheel (28) is rotatably provided on the second moving block (26), and the second rotating wheel (28) is movably fitted to the top of the second moving groove (25).

6. The sand and gravel proportioning feeding equipment according to claim 5 is characterized by: The first fixed block (13a) is provided with a first elongated movable hole (29), and the end of the first discharge door (13b) is movably fitted to the inner wall of the first movable hole (29); the second fixed block (14a) is provided with a second elongated movable hole (30), and the end of the second discharge door (14b) is movably fitted to the inner wall of the second movable hole (30).

7. The sand and gravel proportioning feeding equipment according to claim 1 is characterized by: Material blocking blocks (31) are symmetrically arranged on both sides of the second bracket (2).

8. The sand and gravel proportioning feeding equipment according to claim 1 is characterized by: The material storage frame (12) is in a shape of being wide at the top and narrow at the bottom.

9. The sand and gravel proportioning feeding equipment according to claim 8, characterized in that: An elastic material baffle plate (32) is symmetrically arranged at the bottom of the material storage frame (12), and the elastic material baffle plate (32) is movably fitted to the second conveyor belt (9).

10. The sand and gravel proportioning feeding equipment according to claim 1, characterized in that: The cross-sections of the first discharge port (10) and the second discharge port (11) are long strips.

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