Automatic feeding device for concrete aggregates

Abstract

The application relates to an automatic feeding device for concrete aggregates, and relates to the technical field of concrete production, wherein the automatic feeding device comprises a batching bin. The application forms a slidably adjustable material guiding structure by arranging a supporting plate, a sliding groove, a movable plate, an extension rod and a spring. When a transfer trolley approaches the material guiding plate, the trolley pushes a push rod, drives the material guiding plate and the movable plate to move rightwards along the sliding groove, in the process, the extension rod is synchronously extended and retracted, and the spring is compressed under force to store power for subsequent resetting. Since the trolley has entered above the batching bin when contacting the push rod, when the trolley stops, the aggregates in the trolley are rightwardly impacted due to inertia, at this moment, the material guiding plate is stably blocked to the aggregates under the support of the extension rod and the buffering action of the spring, the movement direction of the aggregates is changed, and the aggregates slide into the batching bin. The cooperation of the spring and the extension rod not only ensures that the material guiding plate remains stable in the blocking process, but also absorbs part of the energy generated by the impact of the aggregates through the elastic deformation of the spring, and further reduces the possibility of aggregate overflow.

Description

Technical Field

[0001] This application relates to the field of concrete production technology, and in particular to an automatic feeding device for concrete aggregates. Background Technology

[0002] In the field of concrete production technology, concrete, as a core material for construction projects, is composed of aggregates, cement, water, and other components, with single-sized or discontinuous-sized coarse aggregates acting as the skeleton. Currently, the common feeding method for concrete mixing plants is to set up batching bins inside the plant, use a loader to shovel aggregates into the bucket, and then have operators manipulate the bucket to deliver the aggregates to the batching bins. When multiple types of aggregates need to be added, the shoveling and delivery operations must be repeated multiple times, making the process cumbersome and inefficient.

[0003] An existing patent (publication number: CN214421583U) discloses an automatic aggregate feeding device, relating to the field of concrete production equipment. It includes a storage silo, a batching silo, and a feeding mechanism. The feeding mechanism includes a conveyor belt, a conveyor track, and a transfer vehicle. The storage silo and batching silo store various aggregates. The conveyor belt transports the aggregates from the storage silo to the transfer vehicle. The conveyor track is fixed within the plant, and the transfer vehicle slides along the length of the conveyor track, discharging the aggregates into the batching silo. This application improves the efficiency of aggregate feeding.

[0004] While the aforementioned comparative cases improve aggregate feeding efficiency, the conveyor track needs to extend a certain distance beyond the batching bin to ensure the operation of the transfer vehicle. When the transfer vehicle suddenly stops above the batching bin, the aggregate inside will be thrown out of the bin to the right due to inertia. This not only pollutes the production environment and increases the cleaning burden but also wastes materials, seriously affecting the efficiency and quality of concrete aggregate feeding. Therefore, an automatic feeding device for concrete aggregates is provided. Utility Model Content

[0005] The purpose of this application is to provide an automatic feeding device for concrete aggregates, which has the characteristics of preventing pollution of the production environment and reducing cleaning costs and workload.

[0006] This application provides an automatic feeding device for concrete aggregates, which adopts the following technical solution: It includes a batching bin, a fixed frame at the upper end of the batching bin, a conveying track and a transfer vehicle that slides with the conveying track between the batching bin and the fixed frame, a support plate fixedly connected to the right end of the upper inner surface of the fixed frame, a groove inside the support plate, a movable plate movably connected inside the groove, a guide plate fixedly connected to the lower end of the movable plate, a telescopic rod and a spring fixedly connected to the upper right side of the movable plate, the spring being sleeved on the surface of the telescopic rod, the right end of the telescopic rod and the spring being fixedly connected to the right side inside the groove, the lower end of the guide plate having an arc-shaped structure with its arc surface facing the inside of the batching bin, a push rod fixedly connected to the left side of the guide plate, and the left end of the push rod cooperating with the right side of the transfer vehicle;

[0007] By adopting the above technical solution, a sliding and adjustable material guiding structure is formed by setting a support plate, chute, movable plate, telescopic rod, and spring within a fixed frame. When the transfer vehicle approaches the guide plate, it pushes the push rod, causing the guide plate and movable plate to move to the right along the chute. During this process, the telescopic rod extends and retracts synchronously, and the spring is compressed to store force for subsequent resetting. Since the transfer vehicle has already entered the area above the batching bin when it contacts the push rod, when the transfer vehicle stops, the aggregate inside the vehicle rushes to the right due to inertia. At this time, the guide plate, supported by the telescopic rod and buffered by the spring, stably blocks the aggregate, changes its direction of movement, and causes it to slide into the batching bin. The cooperation between the spring and the telescopic rod not only ensures the stability of the guide plate during the blocking process but also absorbs some of the energy generated by the impact of the aggregate through the elastic deformation of the spring, further reducing the possibility of aggregate spillage. The blocking effect of the guide plate effectively prevents aggregate from sliding out of the batching bin and falling, preventing pollution of the production environment and reducing cleaning costs and workload compared to existing technologies.

[0008] Preferably, the guide plate has a first groove on its surface, and the guide plate is movably connected to the surface of the conveying track through the first groove.

[0009] By adopting the above technical solution, the first groove on the surface of the guide plate is movably connected to the conveyor track, providing guidance and stable support for the movement of the guide plate. During the process of the transfer vehicle pushing the guide plate and the guide plate blocking aggregate, it ensures that the guide plate will not deviate, thereby more accurately guiding the aggregate into the batching bin and improving the accuracy and stability of feeding.

[0010] Preferably, a second groove is formed inside the slide groove, a slider is fixedly connected to the upper side of the movable plate, and a ball is rotatably connected to the slider on the side away from the movable plate, and the ball is rotatably connected inside the second groove.

[0011] By adopting the above technical solution, the rolling structure composed of the second groove inside the chute, the slider on the movable plate, and the ball bearings significantly reduces the frictional force when the movable plate moves within the chute. This makes the process of the transfer vehicle pushing the guide plate move more smoothly, reduces equipment operating resistance, reduces component wear, extends the service life of the movable plate, guide plate, and other related components, and ensures the long-term stable operation of the feeding device.

[0012] Preferably, when the spring is in its natural state, the guide plate is located within the vertical projection area of ​​the batching bin.

[0013] By adopting the above technical solution, when the spring is in its natural state, the guide plate is located in the vertical projection area of ​​the batching bin. This setting ensures that the guide plate is in the right position in the initial state and after reset, so as to accurately receive the transfer vehicle and block and guide the aggregate in time, ensuring the continuity and reliability of each feeding process and preparing for the next feeding.

[0014] Preferably, the height of the guide plate is greater than the height of the transfer vehicle after it is loaded with aggregate.

[0015] By adopting the above technical solution, the height of the guide plate is greater than the height of the transfer vehicle after the aggregate is loaded. It can effectively block any amount of aggregate loaded in the transfer vehicle. No matter how great the inertial impact force of the aggregate is, it can ensure that it will not overflow beyond the guide plate, further improving the anti-overflow effect and ensuring the safety of the feeding process.

[0016] Preferably, the working surface of the guide plate is provided with an anti-slip and wear-resistant coating.

[0017] By adopting the above technical solution, the anti-slip and wear-resistant coating on the working surface of the guide plate increases the friction between the guide plate and the aggregate, effectively preventing the aggregate from splashing during the sliding process and improving the stability of the feeding process. On the other hand, it improves the wear resistance of the guide plate, reduces the wear caused by aggregate friction on the guide plate, extends its service life, and reduces equipment maintenance costs.

[0018] Preferably, the spring is made of high-strength stainless steel.

[0019] By adopting the above technical solution, the spring is made of high-strength stainless steel, which gives it good corrosion resistance and makes it less prone to rust and damage in the humid and dusty environment of concrete production. At the same time, the high-strength stainless steel gives the spring excellent elastic recovery ability, ensuring that the spring's performance is stable during long-term frequent compression and extension, and continuously providing reliable buffering and reset for the movement of the guide plate.

[0020] Preferably, the push rod has a wear-resistant layer at the end near the transfer vehicle.

[0021] By adopting the above technical solution, the wear-resistant layer installed at the end of the push rod near the transfer vehicle effectively reduces frictional wear between the push rod and the transfer vehicle. During the frequent pushing of the push rod by the transfer vehicle, the wear-resistant layer protects the push rod from rapid wear, ensuring the integrity of the push rod structure. This, in turn, ensures that the guide plate can move stably under the push of the transfer vehicle, maintaining the normal operation of the feeding device.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] This automatic feeding device for concrete aggregates comprises a support plate, chute, movable plate, telescopic rod, and spring within a fixed frame, forming a sliding and adjustable guiding structure. When a transport vehicle approaches the guide plate, it pushes a push rod, causing the guide plate and movable plate to move to the right along the chute. During this process, the telescopic rod extends and retracts synchronously, and the spring is compressed to store energy for subsequent resetting. Since the transport vehicle has entered the area above the batching bin when it contacts the push rod, when the vehicle stops, the aggregate inside rushes to the right due to inertia. At this moment, the guide plate, supported by the telescopic rod and buffered by the spring, stably blocks the aggregate, changing its direction of movement and causing it to slide into the batching bin. The cooperation between the spring and the telescopic rod not only ensures the stability of the guide plate during the blocking process but also absorbs some of the energy generated by the impact of the aggregate through the elastic deformation of the spring, further reducing the possibility of aggregate spillage. The blocking effect of the guide plate effectively prevents aggregate from sliding out of the batching bin and falling, preventing environmental pollution and reducing cleaning costs and workload compared to existing technologies. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure in frontal three-dimensional cross-section of this application;

[0025] Figure 2 This is a three-dimensional structural diagram of the present application.

[0026] Figure 3 This is an enlarged structural schematic diagram of the guide plate in this application;

[0027] Figure 4 This is a structural schematic diagram showing the front cross-section of the support plate in this application;

[0028] Figure 5 This is a top-view cross-sectional structural diagram of the support plate of this application.

[0029] In the picture:

[0030] 1. Batching bin; 2. Fixed frame; 3. Conveyor track; 4. Transfer vehicle; 5. Support plate; 6. Movable plate; 7. Guide plate; 8. Telescopic rod; 9. Spring; 10. Push rod; 11. First groove; 12. Slide groove; 13. Slider; 14. Ball bearing; 15. Second groove. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0032] Example 1: An automatic feeding device for concrete aggregates, referring to... Figure 1 , Figure 4 and Figure 5 The system includes a batching bin 1, a fixed frame 2 at the top of the batching bin 1, a conveyor rail 3 and a transfer vehicle 4 that slides with the conveyor rail 3 between the batching bin 1 and the fixed frame 2, a support plate 5 fixedly connected to the right end of the upper surface inside the fixed frame 2, a groove 12 opened inside the support plate 5, a movable plate 6 movably connected inside the groove 12, a guide plate 7 fixedly connected to the lower end of the movable plate 6, a telescopic rod 8 and a spring 9 fixedly connected to the upper right end of the movable plate 6, the spring 9 being sleeved on the surface of the telescopic rod 8, and the right ends of the telescopic rod 8 and the spring 9 being fixedly connected to the right side inside the groove 12, the lower end of the guide plate 7 having an arc-shaped structure with its arc surface facing the inside of the batching bin 1, a push rod 10 fixedly connected to the left side of the guide plate 7, the left end of the push rod 10 cooperating with the right side of the transfer vehicle 4, and a sliding and adjustable guide structure formed by setting the support plate 5, the groove 12, the movable plate 6, the telescopic rod 8 and the spring 9 inside the fixed frame 2. When the transfer vehicle 4 approaches the guide plate 7, it pushes the push rod 10, causing the guide plate 7 and the movable plate 6 to move to the right along the chute 12. During this process, the telescopic rod 8 extends and retracts synchronously, and the spring 9 is compressed to store force for subsequent resetting. Since the transfer vehicle 4 has already entered above the batching bin 1 when it contacts the push rod 10, when the transfer vehicle 4 stops, the aggregate inside the vehicle rushes to the right due to inertia. At this time, the guide plate 7, supported by the telescopic rod 8 and buffered by the spring 9, stably blocks the aggregate, changes its direction of movement, and causes it to slide into the batching bin 1. The cooperation between the spring 9 and the telescopic rod 8 not only ensures that the guide plate 7 remains stable during the blocking process, but also absorbs some of the energy generated by the impact of the aggregate through the elastic deformation of the spring 9, further reducing the possibility of aggregate spillage. The blocking effect of the guide plate 7 effectively prevents the aggregate from sliding out of the batching bin 1 and falling. Compared with existing technologies, this prevents pollution of the production environment and reduces cleaning costs and workload.

[0033] Reference Figure 1 , Figure 3 and Figure 5The guide plate 7 has a first groove 11 on its surface, and the guide plate 7 is movably connected to the surface of the conveyor track 3 through the first groove 11. The chute 12 has a second groove 15 inside. A slider 13 is fixedly connected to the upper side of the movable plate 6. A ball bearing 14 is rotatably connected to the side of the slider 13 away from the movable plate 6. The ball bearing 14 is rotatably connected inside the second groove 15. The first groove 11 on the surface of the guide plate 7 is movably connected to the conveyor track 3, providing guidance and stable support for the movement of the guide plate 7. During the process of the transfer car 4 pushing the guide plate 7 to move and the guide plate 7 blocking the aggregate, it is ensured that the guide plate 7 will not deviate, thereby more accurately guiding the aggregate into the batching bin 1, improving the accuracy and stability of feeding. The rolling structure composed of the second groove 15 inside the chute 12, the slider 13 on the movable plate 6, and the ball bearing 14 greatly reduces the friction force when the movable plate 6 moves in the chute 12. This makes the process of the transfer vehicle 4 pushing the guide plate 7 move more smoothly, reduces the operating resistance of the equipment, reduces the wear of parts, extends the service life of the moving plate 6, guide plate 7 and other related parts, and ensures the long-term stable operation of the feeding device.

[0034] Reference Figure 1 , Figure 2 and Figure 4 When spring 9 is in its natural state, guide plate 7 is located within the vertical projection area of ​​batching bin 1. The height of guide plate 7 is greater than the height of transfer vehicle 4 after it is loaded with aggregate. This setting ensures that guide plate 7 is in the appropriate position in the initial state and after reset, accurately welcoming transfer vehicle 4 and timely blocking and guiding aggregate, ensuring the continuity and reliability of each feeding process, and preparing for the next feeding. The height of guide plate 7 is greater than the height of transfer vehicle 4 after it is loaded with aggregate, which can effectively block any amount of aggregate loaded in transfer vehicle 4. No matter how great the inertial impact of the aggregate is, it can ensure that it will not overflow beyond guide plate 7, further improving the anti-overflow effect and ensuring the safety of the feeding process.

[0035] Reference Figure 1 , Figure 2 and Figure 3The guide plate 7 has an anti-slip and wear-resistant coating on its working surface. The spring 9 is made of high-strength stainless steel. The push rod 10 has a wear-resistant layer at the end near the transfer car 4. The anti-slip and wear-resistant coating on the working surface of the guide plate 7 increases the friction between it and the aggregate, effectively preventing the aggregate from splashing during sliding and improving the stability of the feeding process. On the other hand, it improves the wear resistance of the guide plate 7, reduces the wear caused by aggregate friction, extends its service life, and reduces equipment maintenance costs. The spring 9 is made of high-strength stainless steel, which gives it good corrosion resistance and makes it less prone to rust and damage in the humid and dusty environment of concrete production. At the same time, the high-strength stainless steel gives the spring 9 excellent elastic recovery ability, ensuring that the spring 9 has stable performance during long-term frequent compression and extension, and continuously provides reliable buffering and reset for the movement of the guide plate 7. The wear-resistant layer at the end of the push rod 10 near the transfer car 4 effectively reduces the frictional wear between the push rod 10 and the transfer car 4. During the frequent pushing of push rod 10 by transfer vehicle 4, the wear-resistant layer protects push rod 10 from rapid wear, ensuring the structural integrity of push rod 10, thereby ensuring that guide plate 7 can move stably under the push of transfer vehicle 4 and maintain the normal operation of feeding device.

[0036] In this embodiment, a sliding and adjustable material guiding structure is formed by setting a support plate 5, a slide groove 12, a movable plate 6, a telescopic rod 8, and a spring 9 within the fixed frame 2. When the transfer vehicle 4 approaches the guide plate 7, the transfer vehicle 4 pushes the push rod 10, causing the guide plate 7 and the movable plate 6 to move to the right along the slide groove 12. During this process, the telescopic rod 8 extends and retracts synchronously, and the spring 9 is compressed to store force for subsequent reset. Since the transfer vehicle 4 has already entered the area above the batching bin 1 when it contacts the push rod 10, when the transfer vehicle 4 stops, the aggregate inside the vehicle rushes to the right due to inertia. At this time, the guide plate 7, supported by the telescopic rod 8 and buffered by the spring 9, stably blocks the aggregate, changes its direction of movement, and causes it to slide into the batching bin 1. The cooperation between the spring 9 and the telescopic rod 8 not only ensures that the guide plate 7 remains stable during the blocking process, but also absorbs part of the energy generated by the impact of the aggregate through the elastic deformation of the spring 9, further reducing the possibility of aggregate spillage. The blocking effect of the guide plate 7 effectively prevents aggregate from sliding out of the batching bin 1 and falling. Compared with the existing technology, it prevents the production environment from being polluted and reduces cleaning costs and workload.

[0037] The implementation principle of this application embodiment is as follows: When the automatic feeding device is not working, the spring 9 is in its natural state, and the guide plate 7 is located in the vertical projection area of ​​the batching bin 1. At this time, the movable plate 6, the telescopic rod 8, and the spring 9 are in a stable state within the slide groove 12 of the support plate 5, waiting for the transfer vehicle 4 to approach. The transfer vehicle 4 slides along the conveyor track 3. When it approaches the guide plate 7, the right side of the transfer vehicle 4 contacts the left end of the push rod 10 and applies a pushing force. Since the push rod 10 is fixedly connected to the guide plate 7, the guide plate 7 drives the movable plate 6 to move to the right along the slide groove 12. During this process, the ball bearings 14 on the slider 13 on the side of the movable plate 6 roll in the second groove 15, greatly reducing the moving friction and making the movable plate 6 move smoothly. At the same time, the telescopic rod 8 extends and retracts synchronously, and the spring 9 is compressed to store elastic potential energy for subsequent reset. Because the transfer vehicle 4 has already entered the area above the batching bin 1 when it contacts the push rod 10, when the transfer vehicle 4 stops sliding, the aggregate inside the vehicle rushes to the right due to inertia. At this time, the arc-shaped structure at the lower end of the guide plate 7 comes into play. Supported by the telescopic rod 8 and buffered by the spring 9, it stably blocks the aggregate, changes the direction of movement of the aggregate, and causes it to slide into the batching bin 1. The first groove 11 on the surface of the guide plate 7 is movably connected to the conveyor track 3, playing a guiding and stabilizing role in blocking the aggregate, ensuring that the guide plate 7 will not deviate, and ensuring that the aggregate can fall accurately into the batching bin 1. After the transfer car 4 completes the aggregate feeding and leaves, it loses the thrust of the transfer car 4, and the compressed spring 9 begins to release its elastic potential energy, pushing the movable plate 6 and the guide plate 7 to move to the left and reset. During the reset process, the ball bearings 14 on the slider 13 continue to roll in the second groove 15, reducing resistance. Until spring 9 returns to its natural state, guide plate 7 returns to the vertical projection area of ​​batching bin 1, ready for the next feeding; the anti-slip and wear-resistant coating on the working surface of guide plate 7 increases the friction between it and the aggregate, preventing aggregate from splashing and extending the service life of guide plate 7; spring 9 is made of high-strength stainless steel, which has good corrosion resistance and elastic recovery ability, ensuring long-term stable operation; the wear-resistant layer on the push rod 10 near the end of the transfer car 4 reduces frictional wear with the transfer car 4, ensuring that the action of the transfer car 4 pushing guide plate 7 is reliably executed each time.

[0038] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic feeding device for concrete aggregate, comprising a batching bin (1), a fixed frame (2) provided at the upper end of the batching bin (1), a conveying track (3) and a transfer vehicle (4) slidably engaged with the conveying track (3) provided between the batching bin (1) and the fixed frame (2), characterized in that: A support plate (5) is fixedly connected to the right end of the upper surface inside the fixed frame (2). A sliding groove (12) is opened inside the support plate (5). A movable plate (6) is movably connected inside the sliding groove (12). A guide plate (7) is fixedly connected to the lower end of the movable plate (6). A telescopic rod (8) and a spring (9) are fixedly connected to the upper right side of the movable plate (6). The spring (9) is sleeved on the surface of the telescopic rod (8). The right ends of the telescopic rod (8) and the spring (9) are fixedly connected to the right side inside the sliding groove (12). The lower end of the guide plate (7) is an arc-shaped structure with its arc surface facing the inside of the mixing bin (1). A push rod (10) is fixedly connected to the left side of the guide plate (7). The left end of the push rod (10) cooperates with the right side of the transfer vehicle (4).

2. The automatic feeding device for concrete aggregate according to claim 1, characterized in that: The guide plate (7) has a first groove (11) on its surface, and the guide plate (7) is movably connected to the surface of the conveying track (3) through the first groove (11).

3. The automatic feeding device for concrete aggregate according to claim 1, characterized in that: The slide (12) has a second groove (15) inside. A slider (13) is fixedly connected to the upper side of the movable plate (6). A ball (14) is tumbled on the side of the slider (13) away from the movable plate (6). The ball (14) is tumbled inside the second groove (15).

4. An automatic feeding device for concrete aggregates according to claim 1, characterized in that: When the spring (9) is in its natural state, the guide plate (7) is located within the vertical projection area of ​​the batching bin (1).

5. An automatic feeding device for concrete aggregates according to claim 1, characterized in that: The height of the guide plate (7) is greater than the height of the transfer vehicle (4) after it is loaded with aggregate.

6. An automatic feeding device for concrete aggregates according to claim 1, characterized in that: The working surface of the guide plate (7) is provided with an anti-slip and wear-resistant coating.

7. An automatic feeding device for concrete aggregates according to claim 1, characterized in that: The spring (9) is made of high-strength stainless steel.

8. An automatic feeding device for concrete aggregates according to claim 1, characterized in that: The push rod (10) has a wear-resistant layer at the end near the transfer vehicle (4).

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