Fully automatic bulk grain unloading method and device at port

Abstract

The present invention relates to a fully automatic bulk grain unloading method and device for a port. The present invention provides a fully automatic bulk grain unloading device for a port, comprising: a bulk grain discharge buffer bin is located in a discharge scale room, a discharge funnel is provided in the bulk grain discharge buffer bin, a discharge valve is provided at the bottom of the discharge funnel, a radar level meter is provided at the discharge port of the bulk grain discharge buffer bin, and an infrared ranging light curtain sensor is provided on the side; a truck is located below the bulk grain discharge buffer bin during operation, and a pushing mechanism is provided in the truck compartment; a plurality of unloading platforms are provided in the unloading scale room, and a laser ranging sensor and a floor scale are provided on the unloading platform; an automatic quantitative loading system is provided in the unloading platform and is connected to the radar level meter, the infrared ranging light curtain sensor, the discharge valve, the laser ranging sensor, the floor scale, and the truck. The present invention also provides a fully automatic bulk grain unloading method for a port based on the above-mentioned fully automatic bulk grain unloading device for a port. The fully automatic bulk grain unloading method and device for a port described in the present invention realize full automation and reduce working time.

Description

Technical Field

[0001] The invention belongs to the technical field of bulk cargo transportation at a wharf, and in particular relates to a fully automatic bulk grain unloading method and device at a port. Background Art

[0002] With the continuous development of the trend of intelligent upgrading, the growth of market demand and the promotion of technological innovation, as well as the continuous advancement of science and technology and the widespread application of intelligent technology, all walks of life are undergoing intelligent upgrading.

[0003] At present, according to the overall requirements of the warehouse delivery process improvement process system design, grain on site needs to be transported by truck. However, in the actual operation of the truck, it is very easy to have problems of underloading and overloading, and the loading efficiency of bulk grain is difficult to control. Summary of the invention

[0004] In view of this, the present invention aims to propose a fully automatic bulk grain unloading method and device for a port, so as to solve the problem of underloading and overloading of vehicles, which is very easy to occur during the actual operation of vehicles, and the problem that the loading efficiency of bulk grain is difficult to control.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] The present invention provides a fully automatic bulk grain unloading device for a port, comprising: a bulk grain unloading buffer bin, a truck, and an unloading scale room; the bulk grain unloading buffer bin is used for multi-point bulk grain unloading and is located in the unloading scale room; the bulk grain unloading buffer bin is provided with a plurality of unloading funnels from left to right, and a unloading valve is provided at the bottom of any unloading funnel; a radar level meter is provided at the unloading port of the bulk grain unloading buffer bin, which is used to detect the feeding situation of the bulk grain unloading buffer bin; an infrared ranging light curtain sensor is provided on the side of the bulk grain unloading buffer bin, which is used to detect the height of the truck compartment;

[0007] The truck is used for bulk material loading in the unloading weighing room. The truck is located below the bulk grain discharge buffer bin during operation. A material pushing mechanism is provided in the truck compartment, and the material pushing mechanism is used for pushing materials during the bulk material loading process.

[0008] Several unloading platforms are arranged in the unloading scale room, and laser ranging sensors are arranged at the four corners of any unloading platform, and a floor scale is arranged inside. The laser ranging sensor is used to detect the position of the truck, and the floor scale is used to detect the weight of the empty truck and the weight of the loaded truck; an automatic quantitative loading system is arranged in the unloading platform, which is connected with the radar level meter, the infrared ranging light curtain sensor, the unloading valve, the laser ranging sensor, the floor scale and the truck, and is used to prompt the parking position of the truck, control the release of materials from the bulk grain discharge buffer warehouse, and the loading and bearing capacity of the truck.

[0009] Furthermore, the linear guide seat in the pushing mechanism is connected to the left and right side car plates of the truck by bolts, and the linear guide seat drives the screw transmission structure through the pushing motor to transmit the action to the connecting slider connected to the screw, the connecting slider is bolted to the bending fixing seat, the bending fixing seat is fixed to the cylinder mounting seat, the cylinder is connected to the cylinder mounting seat through the cylinder fixing seat, and the plunger rod of the cylinder is fixed to the connecting plate through the second connecting rod; the first connecting rod is fixed to the top of the connecting plate through the locking connecting seat, and the connecting bearing seat is fixed to the cylinder mounting seat by bolts, the connecting bearing seat is connected to the first connecting rod through the bearing, and the bottom of the connecting plate is bolted with a rectangular mounting steel, the internal hollow of the mounting steel is fixed to the pushing plate through the connecting studs, and the pushing plate is fixed to the connecting studs through the internal welding nuts.

[0010] Furthermore, a discharge weighing room display unit and a discharge platform detection unit are provided in the automatic quantitative loading system. The discharge weighing room display unit is connected to the discharge platform detection unit. The discharge weighing room display unit displays the idle state of any discharge weighing room. The discharge platform detection unit is used to detect the state of the discharge platform. When the truck needs to operate and any discharge platform is idle, the automatic quantitative loading system displays the discharge platform in the discharge weighing room display unit. The discharge weighing room display unit combines the position parameters of the discharge platform with the received GPS positioning parameters of the truck. The distance between the truck and the idle unloading platform is calculated, and the calculated distances are sorted to obtain the nearest unloading platform, and the position of the nearest unloading platform is provided to the truck, so as to guide the truck to enter the corresponding unloading platform for unloading; when the truck needs to operate and there is no idle unloading platform, several unloading platforms are queued in the queuing unit in the display unit of the unloading scale room, and the waiting time is calculated. The truck is guided to the unloading platform position according to the shortest waiting time, and the guidance process of the truck is realized in the parking guidance unit connected to the unloading platform detection unit.

[0011] Furthermore, the truck enters any unloading weighing room according to the guidance of the automatic quantitative loading system, and the laser ranging sensors at the four corners of the unloading platform begin to detect the position of the truck and draw a position image of the truck on the unloading platform. The position image is input into the parking guidance unit in the automatic quantitative loading system, and the truck is given real-time parking guidance until it reaches the designated unloading target position, at which time the parking guidance program is stopped and the vehicle is weighed.

[0012] Furthermore, a weighing unit and a quantitative loading unit are provided in the automatic quantitative loading system, and the weighing unit is connected to the quantitative loading unit and the parking guidance unit. The weighing unit is provided with initial weights for different types of trucks, and the quantitative loading unit is provided with quantitative loading weights for different types of trucks. After the initial weighing of the vehicle, the initial weighing weight of the truck is generated, and the quantitative loading unit calculates the material loading amount according to the initial weighing weight and the quantitative loading weight of the truck, and transmits the material loading amount to the radar level meter connected to the quantitative loading unit; during the loading process of the truck, the unloading valve is switched on and off according to the radar level meter.

[0013] Furthermore, in the automatic quantitative loading system, the quantitative loading unit controls the movement of the lifting device connected to the bulk grain discharge buffer bin according to the carriage height detection result of the infrared ranging light curtain sensor, and after adjusting the unloading funnel of the bulk grain discharge buffer bin to a suitable position, the quantitative loading unit controls the opening of the unloading valve to release the materials; in the process of releasing the materials, the quantitative loading unit compares the detection condition of the radar level meter and the material loading quantity, and triggers the stop feeding instruction when the material loading quantity is equal to the detection value of the radar level meter; after the stop feeding instruction is triggered, the automatic quantitative loading system guides the truck to the exit path.

[0014] Furthermore, a limit mechanism is provided at the front and rear movement limit positions of the pushing mechanism, the pushing motor is connected to the pushing motor encoder, the pushing motor encoder is respectively connected to the limit mechanism, the unloading valve and the cylinder, the limit mechanism is used to limit the sliding position of the connecting slider, the quantitative loading unit is connected to the limit mechanism, the limit mechanism and the pushing motor encoder are respectively connected to the cylinder, and the pushing motor encoder is connected to the pushing motor; in the process of dispensing materials, the pushing motor drives the pushing plate to move backward, and after the pushing motor reaches the first limited position, the pushing motor stops, and the cylinder pushes the pushing plate to rotate along the connecting rod to the rotation limit position, and then pulls the pushing plate back to the initial rotation state, and the pushing motor drives the pushing plate to move forward. After reaching the second limited position of the limit mechanism, the pushing motor stops and returns again, and repeats until the dispensing of materials is completed; at the end of the material, the pushing plate returns to the initial rotation state, and after the pushing motor drives the pushing plate to the second limited position, the pushing motor stops.

[0015] Furthermore, the initial rotation state is the state of the push plate when the cylinder is not in motion, the first limited position is the extreme position of the push plate moving backward, the second limited position is the extreme position of the push plate moving forward, and the rotation limit position is the limited position of the push plate rotating along the first connecting rod.

[0016] The present invention also relates to a port fully automatic bulk grain unloading method, comprising: step S1, the port fully automatic bulk grain unloading device performs real-time parking guidance for a truck in a guidance unit according to an idle state of a unloading platform;

[0017] Step S2, for the truck that has arrived at the designated unloading target location, stop the parking instruction and perform vehicle weighing;

[0018] Step S3, the port's fully automatic bulk grain unloading device controls the movement of the lifting device connected to the bulk grain discharge buffer bin according to the vehicle detection result detected by the infrared ranging light curtain sensor, and after adjusting the unloading funnel of the bulk grain discharge buffer bin to a suitable position, the port's fully automatic bulk grain unloading device controls the multi-material port and opens the unloading valve to release the material;

[0019] Step S4, during the process of distributing materials, the quantitative loading unit of the port's fully automatic bulk grain unloading device compares the material loading amount with the detection condition of the radar level meter, and triggers a stop feeding instruction when the material loading amount is equal to the detection value of the radar level meter;

[0020] Step S5, after the port fully automatic bulk grain unloading device has completed the unloading operation, it notifies the unloading port that the operation has been completed, and guides the truck to exit on the exit path;

[0021] The fully automatic bulk grain unloading device for port is the fully automatic bulk grain unloading device for port described in the first aspect of the present invention.

[0022] Compared with the prior art, the fully automatic bulk grain unloading method and device for ports of the present invention have the following advantages:

[0023] (1) The present invention uses a bulk grain discharge buffer bin for multi-point bulk grain unloading during feeding, which can achieve uniform discharge. During the loading process, it is not necessary to move to the vehicle, thereby increasing the loading speed and the weighing accuracy. Combined with the pushing mechanism, it can help to evenly distribute the bulk grain in the carriage, reduce the situation of accumulation at one end or corner of the carriage during discharge, ensure uniform loading of goods, and at the same time, make full use of the carriage space, reduce the gaps caused by uneven stacking of goods, and improve transportation efficiency.

[0024] (2) The automatic quantitative loading system of the present invention can quickly guide the loading vehicle to the available unloading platform by monitoring the status of the idle unloading platform in real time, thus reducing waiting time and improving loading efficiency. With more intelligent route guidance, the system can plan the optimal driving route, reduce traffic congestion of loading vehicles in the loading and unloading area, and improve overall logistics efficiency. Automated prompts and guidance reduce the possibility of human judgment and operational errors, ensuring that the loading vehicle accurately reaches the designated unloading platform.

[0025] (3) The present invention performs quantitative loading according to the characteristics of different vehicle models, which can avoid waste and time delays in the loading process and improve loading efficiency. Through adaptive feed quantity calculation, it ensures that the compartment space is maximized, reduces empty space, improves transportation efficiency, reduces the movement and collision of goods during transportation, and reduces the risk of bulk grain damage.

[0026] (4) The push mechanism of the present invention has a rotation function, which can make the push mechanism cover a wider unloading range, reduce unloading time, and improve unloading efficiency. The automated push mechanism can reduce workers' direct contact with materials and reduce the risk of safety accidents. By accurately controlling the push force and angle, the damage of materials during loading can be reduced. The port fully automatic bulk grain unloading device combined with its specific use method can achieve full automation, reduce personnel input, improve operation efficiency and reduce working time. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0028] In the attached picture:

[0029] Figure 1 This is an overall axial schematic diagram of the fully automatic bulk grain unloading device for a port according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the overall front view of the fully automatic bulk grain unloading device for a port according to an embodiment of the present invention;

[0031] Figure 3 It is a schematic cross-sectional view of AA in the overall front view of the fully automatic bulk grain unloading device for a port according to an embodiment of the present invention;

[0032] Figure 4 It is a schematic diagram of the pushing mechanism in the overall front view AA section view of the fully automatic bulk grain unloading device for a port according to an embodiment of the present invention;

[0033] Figure 5 It is a schematic side view of a material pushing mechanism in a fully automatic bulk grain unloading device for a port according to an embodiment of the present invention;

[0034] Figure 6 It is an enlarged schematic diagram of point I in the side view of the pushing mechanism in the fully automatic bulk grain unloading device for a port according to an embodiment of the present invention;

[0035] Figure 7 It is a schematic top view of a material pushing mechanism in a fully automatic bulk grain unloading device for a port according to an embodiment of the present invention;

[0036] Figure 8It is a schematic diagram of the axial side of the cylinder mounting seat in the fully automatic bulk grain unloading device for a port according to an embodiment of the present invention;

[0037] Fig. 9 This is a schematic diagram of the internal connections of the automatic quantitative loading system in the fully automatic bulk grain unloading device for a port according to an embodiment of the present invention;

[0038] Fig.10 This is a schematic diagram of the connection of the quantitative loading unit in the fully automatic bulk grain unloading device for a port according to an embodiment of the present invention;

[0039] Fig.11 This is a schematic diagram of the process flow of the fully automatic bulk grain unloading method at a port according to an embodiment of the present invention;

[0040] Fig.12 It is a detailed schematic diagram of the process before a truck starts working in a unloading scale room in the fully automatic bulk grain unloading method for a port according to an embodiment of the present invention;

[0041] Fig.13 It is a detailed flow chart of the fully automatic bulk grain unloading method for a port described in an embodiment of the present invention after a truck starts operating in an unloading scale room.

[0042] Description of reference numerals:

[0043] 1. Bulk grain discharge buffer bin; 2. Cargo truck; 3. Unloading platform; 4. Laser ranging sensor; 5. Pushing mechanism; 6. Infrared ranging light curtain sensor; 7. Radar level meter; 501. First connecting rod; 502. Connecting stud; 503. Pushing plate; 504. Cylinder; 505. Pushing motor; 506. Connecting bearing seat; 507. Locking connecting seat; 508. Connecting plate; 509. Cylinder mounting seat; 510. Second connecting rod; 511. Cylinder fixing seat; 512. Bending fixing seat; 513. Connecting slider; 514. Linear guide seat; 515. Mounting steel. DETAILED DESCRIPTION

[0044] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0047] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0048] See also Figure 1-Figure 11 As shown, this embodiment provides a fully automatic bulk grain unloading device for a port, including a bulk grain unloading buffer bin 1, a truck 2, and an unloading scale room. The bulk grain unloading buffer bin 1 is used for multi-point bulk grain unloading and is located in the unloading scale room. The bulk grain unloading buffer bin 1 is provided with a plurality of unloading funnels from left to right, and a unloading valve is provided at the bottom of any unloading funnel. A radar level meter 7 is provided at the discharge port of the bulk grain unloading buffer bin 1, which is used to detect the feeding situation of the bulk grain unloading buffer bin; an infrared ranging light curtain sensor 6 is provided on the side of the bulk grain unloading buffer bin 1, which is used to detect the height of the compartment of the truck 2;

[0049] The truck 2 is used for bulk material loading in the unloading weighing room. The truck 2 is located below the bulk grain discharge buffer bin 1 during operation. A material pushing mechanism 5 is provided in the truck compartment. The material pushing mechanism 5 is used for pushing materials during the bulk material loading process.

[0050] Several unloading platforms 3 are arranged in the unloading scale room. Laser distance measuring sensors 4 are arranged at the four corners of any unloading platform 3, and a floor scale is arranged inside. The laser distance measuring sensor is used to detect the position of the truck 2, and the floor scale is used to detect the weight of the empty truck and the weight of the loaded truck. An automatic quantitative loading system is arranged in the unloading platform 3, which is connected with the radar level meter, the infrared distance measuring light curtain sensor, the unloading valve, the laser distance measuring sensor, the floor scale and the truck, and is used to prompt the parking position of the truck, control the release of materials from the bulk grain discharge buffer warehouse and the loading and bearing capacity of the truck.

[0051] Specifically, in this embodiment, the linear guide seat 514 in the pushing mechanism 5 is connected to the left and right side car plates of the truck 2 by bolts, and the linear guide seat 514 drives the screw transmission structure through the pushing motor 505 to transmit the action to the connecting slider 513 connected to the screw, and the connecting slider 513 is bolted to the bending fixing seat 512, and the bending fixing seat 512 is fixed to the cylinder mounting seat 509, and the cylinder 504 is connected to the cylinder mounting seat 509 through the cylinder fixing seat 511, and the plunger rod of the cylinder 504 is connected to the cylinder mounting seat 509 through the second connecting rod. The connecting rod 510 is fixed to the connecting plate 508; the first connecting rod 501 is fixed to the top of the connecting plate 508 by a locking connecting seat 507, the connecting bearing seat 506 is fixed to the cylinder mounting seat 509 by bolts, the connecting bearing seat 506 is connected to the first connecting rod 501 through a bearing, and the bottom of the connecting plate 508 is bolted with a rectangular mounting steel 515, the mounting steel 515 is hollow inside and fixed to the push plate 503 by a connecting stud 502, and the push plate 503 is fixed to the connecting stud 502 by an internal welding nut.

[0052] In the embodiment, the bulk grain discharge buffer bin 1 is used for multi-point bulk grain unloading during feeding, which can achieve uniform discharge, and does not need to be moved to the vehicle during loading, thereby increasing the loading speed and weighing accuracy. Combined with the pushing mechanism 5, it can help to evenly distribute the bulk grain in the carriage, reduce the situation of accumulation at one end or corner of the carriage during discharge, ensure uniform loading of goods, and at the same time, make full use of the carriage space, reduce the gaps caused by uneven stacking of goods, and improve transportation efficiency.

[0053] Specifically, in this embodiment, a discharge weighing room display unit and a discharge platform detection unit are provided in the automatic quantitative loading system. The discharge weighing room display unit is connected to the discharge platform detection unit. The discharge weighing room display unit displays the idle state of any discharge weighing room. The discharge platform detection unit is used to detect the state of the discharge platform. When the truck needs to operate and any discharge platform is idle, the automatic quantitative loading system displays the discharge platform in the discharge weighing room display unit. The discharge weighing room display unit combines the position parameters of the discharge platform with the received GPS positioning parameters of the truck to calculate the distance between the truck and the idle discharge platform, sorts the calculated distances, obtains the nearest discharge platform, and provides the position of the nearest discharge platform to the truck, guiding the truck to enter the corresponding discharge platform for discharge.

[0054] When a truck needs to operate and there is no idle unloading platform, several unloading platforms are queued in the queuing unit in the unloading scale room display unit, and the waiting time is calculated. The truck is guided to the unloading platform position according to the shortest waiting time; the guidance process of the truck is realized in the parking guidance unit connected to the unloading platform detection unit.

[0055] The automatic quantitative loading system automatically navigates the truck by receiving the truck's GPS positioning parameters in combination with the unloading platform's own position parameters. The detailed guidance process is a conventional process and will not be described in detail here.

[0056] In the embodiment, the automatic quantitative loading system can quickly guide the loading vehicle to the available unloading platform by real-time monitoring of the status of the idle unloading platform, reducing waiting time and improving loading efficiency. With more intelligent route guidance, the system can plan the optimal driving route, reduce traffic congestion of loading vehicles in the loading and unloading area, and improve overall logistics efficiency. Automated prompts and guidance reduce the possibility of human judgment and operational errors, ensuring that the loading vehicle accurately reaches the designated unloading platform.

[0057] Specifically, in this embodiment, the truck enters any unloading weighing room according to the guidance of the automatic quantitative loading system, and the laser ranging sensors at the four corners of the unloading platform begin to detect the position of the truck and draw a position image of the truck on the unloading platform. The position image is input into the parking guidance unit in the automatic quantitative loading system, and the truck is given real-time parking guidance until it reaches the designated unloading target position, at which time the parking guidance program is stopped and the vehicle is weighed.

[0058] Specifically, in this embodiment, a weighing unit and a quantitative loading unit are provided in the automatic quantitative loading system, the weighing unit is connected to the quantitative loading unit and the parking guidance unit, the weighing unit is provided with an initial weight for different types of trucks, and the quantitative loading unit is provided with a quantitative loading weight for different types of trucks, after the initial weighing of the vehicle, the initial weighing weight of the truck is generated, the quantitative loading unit calculates the material loading amount according to the initial weighing weight and the quantitative loading weight of the truck, and transmits the material loading amount to the radar level meter connected to the quantitative loading unit; during the loading process of the truck, the unloading valve is switched on and off according to the radar level meter.

[0059] Specifically, in this embodiment, the quantitative loading unit in the automatic quantitative loading system controls the movement of the lifting device connected to the bulk grain discharge buffer bin according to the carriage height detection result of the infrared ranging light curtain sensor, and after adjusting the unloading funnel of the bulk grain discharge buffer bin to a suitable position, the quantitative loading unit controls the opening of the unloading valve to release the materials; in the process of releasing the materials, the quantitative loading unit compares the detection condition of the radar level meter and the material loading amount, and triggers the stop feeding instruction when the material loading amount is equal to the detection value of the radar level meter; after the stop feeding instruction is triggered, the automatic quantitative loading system guides the truck to the exit path.

[0060] In the embodiment, quantitative loading is performed according to the characteristics of different vehicle models, which can avoid waste and time delays in the loading process and improve loading efficiency. Through adaptive feed quantity calculation, it is ensured that the compartment space is maximized, the empty space is reduced, the transportation efficiency is improved, the movement and collision of goods during transportation are reduced, and the risk of bulk grain damage is reduced.

[0061] Specifically, in the present embodiment, a limiting mechanism is provided at the extreme position of the forward and backward movement of the pushing mechanism 5, and the limiting mechanism is used to limit the sliding position of the connecting slider 513, and the quantitative loading unit is connected to the limiting mechanism, and the limiting mechanism and the pushing motor encoder are respectively connected to the cylinder 504, and the pushing motor encoder is connected to the pushing motor 505; in the process of dispensing materials, the pushing motor 505 drives the pushing plate 503 to move backward, and after the pushing motor 505 reaches the first limited position, the pushing motor 505 stops moving. , the cylinder 504 pushes the push plate 503 to rotate along the second connecting rod 510 to the rotation limit position, and then pulls back the push plate 503 to the initial rotation state, and the push motor 505 drives the push plate 503 to move forward. After reaching the second limited position of the limit mechanism, the push motor 505 stops moving and returns again, and repeats until the material dispensing is completed; when the material is finished, the push plate 503 returns to the initial rotation state, and after the push motor 505 drives the push plate 503 to the second limited position, the push motor 505 stops moving.

[0062] Specifically, in this embodiment, the initial rotation state is the state of the push plate 503 when the cylinder 504 is not in motion, the first limited position is the extreme position of the push plate 503 moving backward, the second limited position is the extreme position of the push plate 503 moving forward, and the rotation limit position is the limited position of the push plate 503 rotating along the first connecting rod 501.

[0063] The pushing mechanism with a rotation function can cover a wider unloading range, reduce unloading time, and improve unloading efficiency. The automated pushing mechanism can reduce workers' direct contact with materials and reduce the risk of safety accidents. By precisely controlling the pushing force and angle, it can reduce damage to materials during loading.

[0064] This embodiment also provides a fully automatic bulk grain unloading method at a port, comprising:

[0065] Step S1, the port's fully automatic bulk grain unloading device provides real-time parking guidance for the truck in the guidance unit according to the idle state of the unloading platform; Step S2, for the truck that has reached the designated unloading target position, the parking guidance is stopped and the vehicle is weighed; Step S3, the port's fully automatic bulk grain unloading device controls the movement of the lifting device connected to the bulk grain discharge buffer bin according to the vehicle detection result detected by the infrared ranging light curtain sensor, and after adjusting the unloading funnel of the bulk grain discharge buffer bin to a suitable position, the port's fully automatic bulk grain unloading device controls the multi-material port and opens the unloading valve to release the material; Step S4, in the process of releasing the material, the quantitative loading unit of the port's fully automatic bulk grain unloading device compares the detection condition of the radar level meter with the material loading amount, and triggers the stop feeding instruction when the material loading amount is equal to the detection value of the radar level meter; Step S5, after the discharge is completed, the port's fully automatic bulk grain unloading device notifies the unloading port that the operation has been completed, and guides the truck to the exit path;

[0066] The fully automatic bulk grain unloading device for port is the fully automatic bulk grain unloading device for port described in the first aspect of the embodiment.

[0067] See also Figure 12-13 The figure shows a flow logic diagram of all detailed steps in the actual unloading process. In the embodiment, after the truck enters the gate, the automatic quantitative loading system finds the corresponding idle unloading scale room according to the vehicle information, and the automatic quantitative loading system automatically calls the quantitative interface to open the rolling door. In the automatic quantitative loading system, according to the locked unloading scale room in the automatic quantitative loading system, the automatic quantitative loading system guides the truck to enter the corresponding unloading scale room, and the vehicle enters the unloading scale room and weighs and then performs unloading operations.

[0068] The logic of verifying whether the vehicle can enter the unloading scale room for weighing is as follows: Check whether there are any operating vehicles in this unloading scale room. If there are no operating vehicles, call the lifting interface and automatically lift the lever. If there are operating vehicles, wait. Check every 30 seconds whether there are any vehicles operating on the scale. During unloading operations, weigh the empty vehicle, confirm the empty weight, start the operation (during the operation, you can pause and continue the operation), end the operation, weigh the loaded vehicle, confirm the loaded vehicle, and finally the vehicle exits the gate.

[0069] Empty vehicle weighing: The driver weighs on the scale. There is a weighing button on the automatic quantitative loading system page. The driver stops on the scale and clicks the weighing button to weigh the empty vehicle. When weighing an empty vehicle, infrared shielding, whether there is weight on the scale, and whether it can be weighed are judged. Weighing can only be performed if all three verifications are correct. After weighing is successful, the empty vehicle weight of the vehicle will be displayed on the interface. If there is a problem with the empty vehicle weighing, the reason for not weighing will be displayed.

[0070] Weighing judgment logic: The quantitative interface judges whether weighing is possible; judges whether the infrared light is blocked, if it is blocked, it means the vehicle is not parked properly and cannot be weighed; judges whether there is weight on the scale, if there is no weight, it cannot be weighed; checks whether the scale can be weighed; if all three are correct, weighing can be carried out. The quantitative interface judges whether weighing is possible, that is, the automatic quantitative loading system judges whether the weighing process can be carried out.

[0071] Empty weight confirmation: The page displays the empty vehicle weight. If you have no questions about the weight, click confirm and prepare to unload the material. If you have any questions, you can weigh it again.

[0072] Judgment logic for starting operation: Call the quantitative interface to determine whether the vehicle can operate. For example, if the discharge port of the bulk grain discharge buffer bin fails, the operation is not allowed. When the operation can be started, the maximum operation volume of the vehicle is calculated, that is, the initial weighing weight and the quantitative loading weight are used to calculate the material loading volume (the initial weighing weight at this time is the empty vehicle weight).

[0073] Pause the operation: call the quantitative interface to stop the discharge of the unloading port in operation through the equipment ID, and store the amount of operation in the database.

[0074] Continue the operation: check whether the infrared beam is aligned, whether there is weight on the scale, and whether the operation can continue. If there is no problem, call the quantitative interface to bind the device ID and the vehicle, and calculate the amount of work that can be done again.

[0075] End of operation: After the material is discharged, the automatic quantitative loading system notifies the unloading port that the operation has been completed and the driver can go to weigh it.

[0076] Weighing of heavy vehicles: After putting the materials, you can directly click the weighing button to weigh the vehicle. When weighing, infrared blocking, whether there is weight on the scale, and whether it can be weighed are all verified. Weighing can only be carried out if all three are correct. Judgment logic of weighing heavy vehicles: The quantitative interface will determine whether the infrared is blocked. If it is blocked, it means that the vehicle is not parked properly and cannot be weighed; determine whether there is weight on the scale. If there is no weight, it cannot be weighed; check whether the scale can be weighed; if all three are correct, it can be weighed.

[0077] Heavy vehicle confirmation: The page displays the weight of the heavy vehicle, the weight of the empty vehicle, and the weight of the cargo. If you have any questions about the weight of the heavy vehicle, you can click the re-weighing button to re-weigh the empty vehicle. If there are no questions, click the confirmation button, the rolling door will open automatically, and the vehicle will leave the gate.

[0078] Exit: The page will display the exit route and guide the vehicle out of the gate according to the system.

[0079] In the embodiment, the port fully automatic bulk grain unloading device combined with its specific use method can achieve full automation, reduce manpower input, improve operation efficiency and reduce working time.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fully automatic bulk grain unloading device for a port, characterized in that: The invention comprises a bulk grain discharge buffer bin (1), a truck (2), and a discharge weighing room. The bulk grain discharge buffer bin (1) is used for multi-point bulk grain discharge and is located in the discharge weighing room. The bulk grain discharge buffer bin (1) is provided with a plurality of discharge hoppers from left to right, and a discharge valve is provided at the bottom of each discharge hopper. A radar level meter (7) is provided at the discharge port of the bulk grain discharge buffer bin (1) for detecting the feeding condition of the bulk grain discharge buffer bin. An infrared ranging light curtain sensor (6) is provided on the side of the bulk grain discharge buffer bin (1) for detecting the height of the compartment of the truck (2). The truck (2) is used for bulk material loading in the unloading weighing room. The truck (2) is located below the bulk grain discharge buffer bin (1) during operation. A material pushing mechanism (5) is provided in the truck compartment. The material pushing mechanism (5) is used for pushing materials during the bulk material loading process. A plurality of unloading platforms (3) are arranged in the unloading weighing room, and laser distance measuring sensors (4) are arranged at the four corners of any unloading platform (3), and a floor scale is arranged inside the platform, wherein the laser distance measuring sensor is used to detect the position of the truck (2), and the floor scale is used to detect the weight of an empty truck and the weight of a loaded truck; an automatic quantitative loading system is arranged inside the unloading platform (3), which is connected to a radar level meter, an infrared distance measuring light curtain sensor, an unloading valve, a laser distance measuring sensor, a floor scale, and a truck, and is used to indicate the parking position of the truck, control the release of materials from the bulk grain storage bin, and the loading and bearing capacity of the truck; The linear guide seat (514) in the pushing mechanism (5) is connected to the left and right side car panels of the truck (2) by bolts. The linear guide seat (514) drives the screw transmission structure through the pushing motor (505) to transmit the action to the connecting slider (513) connected to the screw. The connecting slider (513) is bolted to the bending fixing seat (512). The bending fixing seat (512) is fixed to the cylinder mounting seat (509). The cylinder (504) is connected to the cylinder mounting seat (509) through the cylinder fixing seat (511). The plunger rod of the cylinder (504) is connected to the connecting slider (513) through the second connecting rod (510). The first connecting rod (501) is fixed to the top of the connecting plate (508) through a locking connecting seat (507), the connecting bearing seat (506) is fixed to the cylinder mounting seat (509) through bolts, the connecting bearing seat (506) is connected to the first connecting rod (501) through a bearing, and the bottom of the connecting plate (508) is bolted with a rectangular mounting steel (515), the mounting steel (515) is hollow inside and fixed to the push plate (503) through a connecting stud (502), and the push plate (503) is fixed to the connecting stud (502) through an internal welding nut; In the automatic quantitative loading system, the quantitative loading unit controls the action of the lifting device connected to the bulk grain discharge buffer bin according to the carriage height detection result of the infrared ranging light curtain sensor. After adjusting the discharge funnel of the bulk grain discharge buffer bin to a suitable position, the quantitative loading unit controls the opening of the discharge valve to release the material. During the material distribution process, the quantitative loading unit compares the material loading amount with the detection result of the radar level meter. When the material loading amount is equal to the detection value of the radar level meter, the stop feeding instruction is triggered. After the stop feeding instruction is triggered, the automatic quantitative loading system guides the truck to drive out. The push mechanism (5) is provided with a limit mechanism at the front and rear movement limit position, the limit mechanism is used to limit the sliding position of the connecting slide block (513), the quantitative loading unit is connected to the limit mechanism, the limit mechanism, the push motor encoder and the cylinder (504) are respectively connected, and the push motor encoder is connected to the push motor (505); in the process of dispensing materials, the push motor (505) drives the push plate (503) to move backward, and after the push motor (505) reaches the first limit position, the push motor (505) stops moving, and the cylinder (504) stops moving. ) pushes the push plate (503) to rotate along the second connecting rod (510) to the rotation limit position, and then pulls the push plate (503) back to the initial rotation state, and the push motor (505) drives the push plate (503) to move forward. After reaching the second limit position of the limit mechanism, the push motor (505) stops and returns again, and repeats until the material is released. When the material is released, the push plate (503) returns to the initial rotation state, and the push motor (505) drives the push plate (503) to the second limit position, and then the push motor (505) stops. The initial state of rotation is the state of the push plate (503) when the cylinder (504) is not in motion, the first limited position is the limit position of the push plate (503) moving backward, the second limited position is the limit position of the push plate (503) moving forward, and the rotation limit position is the limit position of the push plate (503) rotating along the first connecting rod (501).

2. The fully automatic bulk grain unloading device for ports according to claim 1 is characterized in that: A discharge weighing room display unit and a discharge platform detection unit are provided in the automatic quantitative loading system. The discharge weighing room display unit is connected to the discharge platform detection unit. The discharge weighing room display unit displays the idle state of any discharge weighing room. The discharge platform detection unit is used to detect the state of the discharge platform. When the truck needs to operate and any unloading platform is idle, the automatic quantitative loading system will display the unloading platform in the unloading scale room display unit, and the unloading scale room display unit will combine the position parameters of the unloading platform with the received GPS positioning parameters of the truck to calculate the distance between the truck and the idle unloading platform, sort the calculated distances, obtain the nearest unloading platform, and provide the nearest unloading platform position to the truck, guiding the truck to enter the corresponding unloading platform for unloading; When a truck needs to operate and there is no idle unloading platform, several unloading platforms are queued in the queuing unit in the unloading scale room display unit, and the waiting time is calculated. The truck is guided to the unloading platform position according to the shortest waiting time; the guidance process of the truck is realized in the parking guidance unit connected to the unloading platform detection unit.

3. The fully automatic bulk grain unloading device for ports according to claim 2 is characterized in that: The truck enters any unloading weighing room according to the guidance of the automatic quantitative loading system. The laser ranging sensors at the four corners of the unloading platform begin to detect the position of the truck and draw a position image of the truck on the unloading platform. The position image is input into the parking guidance unit in the automatic quantitative loading system, and the truck is given real-time parking guidance until it reaches the designated unloading target position. The parking guidance program is stopped and the vehicle is weighed.

4. The fully automatic bulk grain unloading device for ports according to claim 3 is characterized in that: A weighing unit and a quantitative loading unit are provided in the automatic quantitative loading system. The weighing unit is connected to the quantitative loading unit and the parking guidance unit. The weighing unit is provided with initial weights for different types of trucks. The quantitative loading unit is provided with quantitative loading weights for different types of trucks. After the initial weighing of the vehicle, the initial weighing weight of the truck is generated. The quantitative loading unit calculates the material loading amount according to the initial weighing weight and the quantitative loading weight of the truck, and transmits the material loading amount to the radar level meter connected to the quantitative loading unit. During the loading process of the truck, the unloading valve is switched on and off according to the radar level meter.

5. A fully automatic bulk grain unloading method at a port, characterized in that: include, Step S1, the port fully automatic bulk grain unloading device provides real-time parking guidance for the truck in the guidance unit according to the idle state of the unloading platform; Step S2, for the truck that has arrived at the designated unloading target location, stop the parking instruction and perform vehicle weighing; Step S3, the port's fully automatic bulk grain unloading device controls the movement of the lifting device connected to the bulk grain discharge buffer bin according to the vehicle detection result detected by the infrared ranging light curtain sensor, and after adjusting the unloading funnel of the bulk grain discharge buffer bin to a suitable position, the port's fully automatic bulk grain unloading device controls the multi-material port and opens the unloading valve to release the material; Step S4, during the process of distributing materials, the quantitative loading unit of the port's fully automatic bulk grain unloading device compares the material loading amount with the detection condition of the radar level meter, and triggers a stop feeding instruction when the material loading amount is equal to the detection value of the radar level meter; Step S5, after the discharge is completed, the port fully automatic bulk grain unloading device notifies the unloading port that the operation has been completed, and guides the truck to the exit path; the port fully automatic bulk grain unloading device is the port fully automatic bulk grain unloading device according to any one of claims 1-4.

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