A multi-point unloading aggregate loading system without vehicle type limitation and a use method thereof

Abstract

A multi-point unloading aggregate loading system for any vehicle type and a method of use relate to the field of aggregate loading systems, including a silo and a bulk loader. A loading space suitable for any vehicle type is provided below the silo, a floor scale is fixed below the loading space, a plurality of unloading openings are evenly distributed side by side at the lower part of the silo, a mobile bulk loader with a positioning function is provided at the lower part of each unloading opening, gratings, traffic lights and gates are respectively provided at the inlet and exit on the left and right sides of the loading space, an industrial camera is also provided at the entrance of the loading space, and an industrial display is also provided at the exit of the loading space, the bulk loader, industrial camera, grating, gate, industrial display, traffic lights and floor scale are all controlled by the control system of an external industrial computer; during the entire unloading process of the present invention, the driver does not need to move the truck, which saves time, and at the same time, unloading efficiency is improved, the aggregate in the truck bed is evenly distributed, and dust is reduced.

Description

Technical Field

[0001] This invention relates to the field of aggregate loading systems, and in particular to a multi-point aggregate loading system and its usage method that is not limited to any type of vehicle. Background Technology

[0002] As is well known, various types of trucks come to the factory to purchase and transport aggregates, making it impossible to mandate a uniform type of truck. Upon entering the factory, truck drivers register and provide vehicle and loading information, then proceed to the loading bay below the silo to load the aggregates, following the instructions of on-site staff. During the aggregate loading process, truck drivers must continuously adjust their vehicle position forward or backward according to instructions from staff above or on the ground at the loading bay to ensure the truck is fully loaded.

[0003] Throughout the loading process, the lack of fixed vehicle models and varying truck bed dimensions leads to poor repeatability. Furthermore, the loading process requires both industrial workers and truck drivers to work together in a very noisy environment. Workers must constantly monitor the unloading point and provide timely instructions to the driver. The trucks also need to move continuously, making it difficult to ensure even loading and prevent spillage. The entire loading process is extremely time-consuming, inefficient, and lacks automation. The noise, dust, and prolonged stress associated with the loading process are detrimental to the physical and mental health of both on-site workers and truck drivers. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention discloses a multi-point aggregate loading system and its usage method that is not limited to vehicle models.

[0005] To achieve the aforementioned objective, the present invention employs the following technical solution:

[0006] A multi-point aggregate loading system that is not limited by vehicle type includes a hopper and a bulk loading machine. Loading positions suitable for any vehicle type are set below the hopper. A weighbridge is fixed below the loading positions. Multiple discharge ports are evenly distributed side-by-side at the bottom of the hopper. A mobile bulk loading machine with positioning function is installed below each discharge port. A light grid, traffic lights, and a barrier are respectively installed at the entrance and exit on the left and right sides of the loading position. An industrial camera is also installed at the entrance of the loading position, and an industrial display is installed at the exit. The bulk loading machine, industrial camera, light grid, barrier, industrial display, traffic lights, and weighbridge are all controlled by an external industrial control computer.

[0007] The aforementioned multi-point aggregate loading system, which is not limited by vehicle type, uses an industrial camera to detect the license plate of the truck, traffic lights to indicate whether the truck is entering or leaving the loading position, a grating to detect the position of the truck and transmit the information to the control system. The control system then sends a signal to the industrial display to indicate the appropriate parking position for the truck to the driver. A weighbridge is used to detect the loading weight of the truck and feeds the loading weight back to the control valve at the unloading port through the control system.

[0008] The aforementioned multi-point aggregate loading system, which is not limited to any particular vehicle model, allows the mobile bulk loader to cover the loading area of ​​different vehicle types.

[0009] A method for using a multi-point aggregate loading system that is not limited to certain vehicle models includes the following steps:

[0010] (1) The truck driver registers the loading information, the truck goes to the loading position, when the traffic light at the entrance of the loading position is green, the gate at the entrance is opened, the industrial camera recognizes the truck license plate, the control system retrieves the current truck model information and calculates the truck's parking position; when the traffic light at the entrance of the loading position is red, the truck waits or goes to other loading positions.

[0011] (2) When the truck enters the loading position, the grating determines whether the truck has stopped in the appropriate position. If it has stopped in the appropriate position, the control system calculates the number of times each discharge port will discharge, the initial position of each discharge, and the tonnage of the discharge. The calculation results are transmitted to the transferable bulk loading machine, and the industrial display prompts to start loading. If it has not stopped in the appropriate position, the signal of the grating is transmitted to the control system, and the control system transmits the signal to the industrial display. The industrial display prompts the driver to move the truck to the appropriate position, and then the industrial display prompts to start loading.

[0012] (3) The mobile bulk loading machine moves to its initial position for this feeding, and the mobile bulk loading machine rises while feeding, repeating N times, where N is the number of feeding times calculated by the system, until the feeding tonnage reaches the predetermined value for this feeding, and the weighbridge determines whether the feeding amount is sufficient.

[0013] (4) All mobile bulk loading machines rise to the highest position, the industrial display shows that the loading information is complete, the traffic light at the loading position exit turns green, the gate at the exit opens, the truck leaves the loading position, and the billing is completed and the truck leaves the factory.

[0014] Due to the adoption of the above technical solution, the present invention has the following beneficial effects:

[0015] 1. The multi-point aggregate loading system and method for loading aggregates without vehicle type limitation described in this invention, by setting up an aggregate loading system, retrieves the vehicle type information of the truck based on the license plate of the truck in the loading position, calculates the appropriate parking position of the truck, and automatically determines whether the vehicle is parked properly; after the truck is parked in the appropriate loading position, the system reasonably designs a feeding scheme for various vehicle types, controls multiple mobile bulk loaders to feed aggregates simultaneously or sequentially until the driver's desired loading target value is reached. During the entire feeding process, the driver does not need to move the truck, saving time, while improving feeding efficiency, and the aggregate in the truck bed is evenly distributed, reducing dust.

[0016] 2. The multi-point aggregate loading system and method described in this invention, which is not limited by vehicle type, eliminates the need for different loading positions and corresponding personnel training when building or modifying aggregate plants on-site. Trucks can load at any loading position without being restricted by vehicle type. Traffic lights, barriers, industrial displays, and light grids are installed at the entrance and exit of the loading positions, improving safety and operability. During the entire loading process, the driver can drive the truck to the appropriate unloading position in one go according to the instructions on the industrial display. With the cooperation of multiple mobile bulk loading machines, multiple points can be unloaded simultaneously or sequentially, saving time and increasing efficiency. Only a short wait is required before loading is completed, which greatly improves the efficiency and automation of aggregate loading, shortens loading time, reduces driver workload, and reduces the differentiated work caused by different vehicle types. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the loading structure of the present invention applicable to large trucks.

[0018] Figure 2 This is a schematic diagram of the mounting structure of the present invention applicable to small trucks.

[0019] Figure 3 This is a flowchart of the vehicle loading process of the present invention.

[0020] In the diagram: 1. Feed inlet; 2. Mobile bulk loading machine; 3. Weighbridge; 4. Industrial camera; 5. Traffic light; 6. Optical grating; 7. Barrier gate; 8. Industrial display. Detailed Implementation

[0021] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0022] Combined with appendix Figure 1-3The multi-point aggregate loading system that is not limited by vehicle type includes a hopper and a bulk loading machine 2. Loading positions suitable for any vehicle type are set below the hopper. A weighbridge 3 is fixed below the loading positions. Multiple discharge ports 1 are evenly distributed side by side at the bottom of the hopper. Each discharge port 1 is equipped with a mobile bulk loading machine 2 with positioning function. A light grid 6, a traffic light 5, and a barrier 7 are respectively installed at the entrance and exit on the left and right sides of the loading position. An industrial camera 4 is also installed at the entrance of the loading position, and an industrial display 8 is also installed at the exit of the loading position. The bulk loading machine 2, industrial camera 4, light grid 6, barrier 7, industrial display 8, traffic light 5, and weighbridge 3 are all controlled by an external industrial control computer control system.

[0023] The multi-point aggregate loading system that is not limited to any type of vehicle includes an industrial camera 4 for detecting the license plate of the truck, a traffic light 5 for entering or leaving the loading position, a grating 6 for detecting the position of the truck and transmitting the information to the control system. The control system then sends a signal to the industrial display 8 to indicate the appropriate parking position for the truck to the driver. A weighbridge 3 is used to detect the loading weight of the truck and feeds the loading weight back to the control valve of the discharge port 1 through the control system.

[0024] The multi-point feeding aggregate loading system that is not limited to different vehicle models has a mobile bulk loading machine 2 whose mobile feeding range can cover the truck beds of different vehicle models.

[0025] The method for implementing a multi-point aggregate loading system that is not limited by vehicle type includes the following steps:

[0026] (1) The truck driver registers the loading information and the truck goes to the loading position. The loading information includes vehicle type information, namely the length, width and height of the vehicle, the length, width and height of the truck bed, and the target loading weight. Then the truck can go to any loading position to load. When the truck arrives at the loading position, if there is already a truck loading at the current loading position, the system will automatically turn the entrance traffic light 5 of the loading position to red, and the driver can wait or go to other loading positions. If the current loading position is empty, the system will automatically turn the entrance traffic light 5 of the loading position to green, and the gate 7 at the entrance will open, and the truck can enter the loading position.

[0027] The industrial camera 4 identifies the truck's license plate, the control system retrieves the truck's model information, and calculates the truck's parking position to ensure that the truck bed is in the middle of the parking space, that is, the symmetry axis of the truck bed and the symmetry axis of the silo above are on the same line. Because the aggregate in the grain silo is basically symmetrical under the action of gravity, ensuring that the truck bed and the silo are also symmetrical can reduce uneven material feeding.

[0028] The parking position is calculated as follows: Let L1 be the horizontal distance from the light bar at the loading bay entrance to the loading bay entrance, L2 be the horizontal distance to the loading bay exit, and L3 be the length of the truck bed. Then, when the truck is parked, the horizontal distance between the truck bed and the light bar at the loading bay entrance is:

[0029] 1 / 2×(L2-L1)+L1-1 / 2×L3=1 / 2×(L2+L1-L3);

[0030] After the truck enters the loading position, the grating at the entrance of the loading position determines whether the truck is parked in a suitable position. If the truck is parked too far forward or too far back, that is, the grating measurement distance is too small, the system issues a warning message through the industrial display 8 to prevent the truck from damaging the equipment. If the truck is not parked in a suitable position, the system prompts the truck to move through the industrial display 8 until it is parked in a suitable position, and the control system prepares to start unloading and loading.

[0031] (2) The control system calculates the number of times each material is fed, the initial position of each feeding and the tonnage of the material, and transmits the calculation results to the mobile bulk loading machine 2. The industrial display 8 prompts to start loading.

[0032] The loading and unloading process is as follows: The system calculates the number of times each unloading port is used, the initial position of each unloading, and the unloading tonnage based on the length of the truck bed and the target mass T tons of this loading process (T = the target loading mass registered by the driver when entering the factory, T = the target loading mass registered by the driver when entering the factory - the total loading volume SUM after the (m-1)th loading process).

[0033] The length of the truck bed is L3. The horizontal range of the material discharge of each discharge port of the loading position can be ranged by the movable bulk loader. The horizontal range of the material discharge is determined by the model of the bulk loader. At this time, the system calculates the number of bulk loaders N to be used as the rounded-up value of L3 / range. The total discharge tonnage of the bulk loader in the middle is Tmiddle=T / L3×range, and the total discharge tonnage of the bulk loaders on the leftmost and rightmost sides is Tleft=Tright=1 / 2×(T / L3)×(L3-(N-2)×range), which means that all the aggregates on the truck bed are considered to be evenly distributed.

[0034] The system settings are as follows: the number of times the bulk loading machine Xmiddle is in the middle is the same. Xmiddle can be optimized and modified according to different aggregate types. Xmiddle must be a positive integer. In Examples 1 and 2, Xmiddle = 3, and the tonnage of each loading tmiddle = Tmiddle / Xmiddle. The number of times the bulk loading machine Xleft and Xright is in the leftmost and rightmost positions is the same. Xleft = Xright = Tleft / tmiddle rounded down, and the tonnage of each loading tleft = tright = Tleft / Xleft.

[0035] The initial descent height H of the bulk loader is the distance from the bulk loader to the upper surface inside the truck bed. This distance is measured by the bulk loader's positioning function or by adding various distance sensors. By default, the bulk loader discharges materials from left to right. For the bulk loader in the middle, the initial horizontal position of the first material discharge is the leftmost side of the bulk loader's movement range. The horizontal distance PmiddleN between the initial position of the nth material discharge and the initial position of the first material discharge is PmiddleN = (n-1) × range / Xmiddle.

[0036] For the bulk loading machine located on the far left, the distance from the initial horizontal position of the nth feeding to the rightmost side of the machine's movement range is PleftN=(Xleft-n)×((L3-(N-2) ×range) / Xleft). Therefore, the initial horizontal position of the last feeding is the rightmost side of the machine's movement range.

[0037] The bulk loading machine on the far right initially discharges material at the leftmost position of its moving range. The distance from the leftmost position of the initial discharge of the nth batch of material to the leftmost position of its moving range is PrightN=(n-1) ×((L3-(N-2) ×range) / Xright).

[0038] Appendix Figure 1 In the middle, the middle bulk loading machine first discharges material at position d, the second time at position e, and the third time at position f; the leftmost bulk loading machine first discharges material at position a, the second time at position b, and the third time at position c; the rightmost bulk loading machine first discharges material at position g, the second time at position h, and the third time at position i.

[0039] Appendix Figure 2 In the middle, the first feeding of the bulk loader is at feeding position k, the second feeding is at feeding position I, and the third feeding is at feeding position m. The first feeding of the bulk loader on the far left is at feeding position j, and the first feeding of the bulk loader on the far right is at feeding position n.

[0040] (3) The mobile bulk loading machine 2 moves to its initial position for this feeding. The mobile bulk loading machine 2 feeds and rises at the same time, repeating N times, where N is the number of feeding times calculated by the system, until the feeding tonnage reaches the predetermined value for this feeding. The weighbridge 3 weighs whether the current total feeding amount SUM of the vehicle reaches the target loading weight registered by the driver when entering the factory. If it is determined that the feeding amount is insufficient, the feeding process is repeated, and the weighing is repeated until the total feeding amount SUM reaches the target loading weight registered by the driver when entering the factory. All bulk loading machines rise to the highest position.

[0041] (4) All mobile bulk loading machines 2 rise to the highest position, the industrial display 8 shows that the loading information is complete, the traffic light 5 at the loading position exit is green, the barrier gate 7 is opened, the truck leaves the loading position, and the billing is completed and the truck leaves the factory.

[0042] The parts of this invention not described in detail are prior art.

[0043] The embodiments selected herein for the purpose of disclosing the inventive objectives are currently considered suitable; however, it should be understood that the invention is intended to include all variations and modifications of the embodiments that fall within the scope of this concept and invention.

Claims

1. A method for using a multi-point aggregate loading system that is not limited to certain vehicle types, comprising a hopper and a bulk loader, characterized in that: Specifically, the steps include the following: (1) The truck driver registers the loading information, the truck goes to the loading position, and when the traffic light at the entrance of the loading position is green, the gate at the entrance opens, the industrial camera recognizes the truck's license plate, the control system retrieves the current truck model information, and calculates the truck's parking position; when the traffic light at the entrance of the loading position is red, the truck waits or goes to another loading position; the parking position is calculated as follows: the horizontal distance from the grating at the entrance of the loading position to the entrance of the loading position is L1, the horizontal distance to the exit of the loading position is L2, and the length of the truck bed is L3. Then, when the truck is parked, the horizontal distance from the truck bed to the grating at the entrance of the loading position is: 1 / 2×(L2-L1)+L1-1 / 2×L3=1 / 2×(L2+L1-L3); The industrial camera is used to detect the license plate of the truck, the traffic lights are used to enter or leave the loading position, the grating is used to detect the position of the truck and transmit the information to the control system. The control system sends the signal to the industrial display to prompt the driver for the appropriate parking position of the truck. The weighbridge is used to detect the loading weight of the truck and feeds the loading weight back to the control valve of the unloading port through the control system. (2) When the truck enters the loading position, the grating determines whether the truck has stopped in the appropriate position. If it has stopped in the appropriate position, the control system calculates the number of times each discharge port will discharge, the initial position of each discharge, and the tonnage of the discharge. The calculation results are transmitted to the mobile bulk loading machine, and the industrial display prompts to start loading. The mobile bulk loading machine can cover the truck bed of different vehicle types. If it has not stopped in the appropriate position, the signal of the grating is transmitted to the control system, and the control system transmits the signal to the industrial display. The industrial display prompts the driver to move the truck to the appropriate position, and then the industrial display prompts to start loading. The loading and unloading process is as follows: The system calculates the number of times each unloading port is unloaded, the initial position of each unloading, and the unloading tonnage based on the length of the truck bed, the target mass T tons of this loading process, the target loading mass registered by the driver when entering the factory, the target loading mass T of the m-th loading process, the target loading mass registered by the driver when entering the factory, and the total loading mass SUM after the (m-1)-th loading process. The length of the truck bed is L3. The horizontal range of the material discharge of each discharge port of the loading position can be ranged by the movable bulk loader. The horizontal range of the material discharge is determined by the model of the bulk loader. At this time, the system calculates the number of bulk loaders N to be used as the rounded-up value of L3 / range. The total discharge tonnage of the bulk loader in the middle is Tmiddle=T / L3×range, and the total discharge tonnage of the bulk loaders on the leftmost and rightmost sides is Tleft=Tright=1 / 2×(T / L3)×(L3-(N-2)×range), which means that all the aggregates on the truck bed are considered to be evenly distributed. The system settings are as follows: the number of times the middle bulk loader discharges material is Xmiddle, which can be optimized and modified according to different aggregate types. Xmiddle must be a positive integer, and the tonnage of each discharge is tmiddle = Tmiddle / Xmiddle. The number of times the leftmost and rightmost bulk loaders discharge material is Xleft and Xright, which are the same. Xleft = Xright = Tleft / tmiddle rounded down, and the tonnage of each discharge is tleft = tright = Tleft / Xleft. The initial descent height H of the bulk loader is the distance from the bulk loader to the upper surface inside the truck bed. This distance is measured by the positioning function of the bulk loader or by adding various distance sensors. By default, the bulk loader feeds from left to right. For the bulk loader in the middle, the initial horizontal position of the first feeding is the leftmost side of the bulk loader's movement range. The horizontal distance PmiddleN between the initial position of the nth feeding and the initial position of the first feeding is (n-1)×range / Xmiddle. The horizontal distance from the initial feeding position of the nth feeding of the bulk loading machine to the rightmost side of its movement range is PleftN=(Xleft-n) ×((L3-(N-2) ×range) / Xleft). Therefore, the initial feeding position of the last feeding is the rightmost side of the movement range of the bulk loading machine. The bulk loading machine on the far right initially discharges material at the leftmost position of its moving range. The distance from the leftmost position of the initial discharge of the nth material to the leftmost position of its moving range is PrightN=(n-1)×((L3-(N-2) ×range) / Xright). (3) The mobile bulk loading machine moves to its initial position for this feeding, and the mobile bulk loading machine rises while feeding, repeating N times, where N is the number of feeding times calculated by the system, until the feeding tonnage reaches the predetermined value for this feeding, and the weighbridge determines whether the feeding amount is sufficient. (4) All mobile bulk loading machines rise to the highest position, the industrial display shows that the loading information is complete, the traffic light at the loading position exit is green, the gate at the exit is opened, the truck leaves the loading position, and the billing is completed and the truck leaves the factory. The hopper is equipped with loading positions suitable for any vehicle type. A weighbridge is fixed below the loading positions. Multiple discharge ports are evenly distributed side by side at the bottom of the hopper. Each discharge port is equipped with a mobile bulk loading machine with positioning function. A light grid, traffic lights and a barrier are respectively installed at the entrance and exit on the left and right sides of the loading position. An industrial camera is also installed at the entrance of the loading position and an industrial display is installed at the exit of the loading position. The bulk loading machine, industrial camera, light grid, barrier, industrial display, traffic lights and weighbridge are all controlled by an external industrial control computer control system.

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