A sorting and conveying system and method for a construction waste recycling production line.
By introducing an unmanned intelligent conveying system into the construction waste recycling production line, the problems of high labor costs and easy equipment blockage have been solved, realizing the automated collection, transportation and unloading of sorted materials, reducing costs and improving efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BCEG RESOURCES RECYCLING CO LTD
- Filing Date
- 2026-04-21
- Publication Date
- 2026-06-02
AI Technical Summary
In existing construction waste recycling production lines, manual labor and traditional conveying equipment suffer from high labor costs, high requirements for workshop layout, easy spillage during conveying, and easy blockage during unloading.
The system employs an unmanned intelligent conveying system, including a discharge trough, collection box, AGV transport vehicle, weighing device, and unloading device. Through the conveying control system, it automatically collects, transports, and unloads the sorted items, achieving fully unmanned operation throughout the entire process.
It reduced the number of on-site operators, lowered workshop layout and operating costs, avoided heavy manual labor and human error, and achieved accurate weighing and unloading of sorted items, thus improving transportation efficiency and safety.
Smart Images
Figure CN122124993A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of construction waste recycling technology, and more specifically, to a construction waste recycling production line sorting and conveying system and method. Background Technology
[0002] Construction waste is complex in composition, and current recycling production lines include sorting and collection steps for various recyclable components, such as wood, plastics, scrap iron, non-ferrous metals, and combustible debris. Due to the variety of components, domestic construction waste recycling plants generally use either manual labor with wheelbarrows or conveyor equipment to collect, transfer, and unload materials. The manual labor with wheelbarrow method offers more flexible workshop layout and lower construction costs, but long-term labor costs are high. Conveying equipment, on the other hand, has high requirements for workshop layout and construction costs, and is prone to spillage during transport and blockages during unloading. Summary of the Invention
[0003] The purpose of this application is to provide a sorting and conveying system and method for a construction waste recycling production line. By setting up an unmanned intelligent conveying system on the production site, and matching the existing operating conditions of the construction waste recycling production line, the number of on-site operators is significantly reduced. The work performed by workers is broken down into steps such as collection, transfer, weighing, and unloading. Through discharge troughs, collection boxes, AGV transport vehicles, and unloading systems, manual labor is replaced, achieving unmanned operation.
[0004] To achieve the above objectives, in a first aspect, the present invention provides a sorting and conveying system for a construction waste recycling production line, comprising: The discharge chute is installed at the discharge point of the sorted materials in the construction waste recycling production line and unloads the sorted materials into the container below. A collection box for receiving and holding sorted items discharged from the discharge chute; AGV transport vehicle, used to carry and transport the collection box; A weighing device is used to weigh the AGV transport vehicle and its onboard collection box; Unloading device, used to unload the sorted items from the collection box to a designated unloading area; and The conveying control system is communicatively connected to the discharge chute, AGV transport vehicle, weighing device and unloading device to control the components to work together to complete the automatic collection, transportation, weighing and unloading of sorted items.
[0005] In an optional embodiment, the discharge trough includes a trough body, mounting components, a material level detector, and an electric valve; The tank is fixed to the production line by the mounting component. The upper opening of the tank is the receiving port, and the lower opening is the unloading port. A material level detector is installed at the bottom to detect the amount of material in the collection box; an electric valve is installed at the bottom to control the start and stop of unloading the sorted items.
[0006] In an optional embodiment, the collection box includes a box body, a flap mechanism, a support, a lifting ring, a limiting hole, and a positioning hole; The top opening of the box is an open receiving port; the flip-plate mechanism is installed inside the box to compact the sorted items inside the box and assist in unloading. The lifting rings are disposed on both sides of the box body and are used to cooperate with the unloading device for lifting. The limiting hole and the positioning hole are provided on the support for positioning and fixing with the AGV transport vehicle.
[0007] In an optional embodiment, the AGV transport vehicle includes a frame, a lifting device, wheels, limiters, and locators; the lifting device is located at the bottom of the frame and connected to the wheels, and is used to lift the collection box for transport. The limiter and the locator are located on the top of the frame and are used to fix and position the collection box.
[0008] In an optional embodiment, the unloading device includes an unloading baffle, a lifting track, a lifting arm, and a fixing device; The back of the unloading baffle is the unloading area, and the front is the collection box operation area; the lifting rail and the lifting arm are installed on the front of the unloading baffle, and the lifting arm can move up and down along the lifting rail; The fixture is installed at the front end of the lifting arm and is used to fix the collection box; The lifting arm is a foldable structure used to flip the collection box from the front to the back for unloading.
[0009] Secondly, the present invention provides a method for conveying sorted materials in a construction waste recycling production line, which is carried out according to any one of the foregoing embodiments of the construction waste recycling production line sorted material conveying system, and includes the following steps: Receiving steps: The sorted items fall into the collection box through the discharge chute until the collection box is full; Transportation steps: The AGV transport vehicle carries the full collection box to the weighing device; Weighing steps: Weigh the full collection box when it is full, and weigh the empty collection box after unloading to calculate the weight of the sorted items. Lifting steps: Transfer the full collection box from the AGV transport vehicle to the unloading device and lift it to the unloading position; Unloading procedure: Tilt and flip the full collection box to unload the sorted items, and then return the empty collection box to the AGV transport vehicle.
[0010] In an optional implementation, the receiving step further includes: After the AGV transport vehicle is controlled by the conveying control system to deliver the collection box to the preset receiving position below the discharge chute, the electric valve on the discharge chute is opened, and the sorted items are unloaded into the collection box through the discharge chute. The material level detector monitors the amount of material in the collection box in real time. When the box is full, the conveying control system controls the electric valve to close. During the period when the electric valve is closed, the discharge chute temporarily buffers the sorted materials discharged from the production line.
[0011] In an optional implementation, the conveying step further includes: After the electric valve is closed, the flap mechanism inside the collection box presses down to compact the sorted items and prevent spillage. The AGV transport vehicle drives to the bottom of the collection box, lifts the collection box with the lifting device, and uses limiters and positioners to fix the collection box to the AGV transport vehicle; The conveying control system plans the driving route and controls the AGV transport vehicle to transport the collection box to the weighing device.
[0012] In an optional implementation, the weighing step further includes: Full load weighing: The AGV transport vehicle carries a full collection box to the preset waiting position of the weighing device. After the weighing device returns to zero, it drives to the weighing position and reads the full load weight data. Empty load weighing: After unloading, the AGV transport vehicle carries the empty container collection box to the weighing device again to read the empty load weight data; The conveying control system subtracts the empty weight from the full load weight to obtain the unloading weight data of the sorted items, and then allocates the storage positions of the collection boxes and the parking positions of the AGVs.
[0013] In an optional implementation, the lifting and unloading steps further include: The AGV transport vehicle carries a full collection box to the preset waiting position of the unloading device, and the unloading device switches to working mode. The AGV transport vehicle moves towards the lifting arm of the unloading device, so that the lifting arm is inserted into the lifting ring of the collection box, the retainer locks the collection box, and the AGV transport vehicle is disconnected from the collection box; The lifting arm raises the collection box to the top of the unloading device, and then bends upward to tilt the collection box 180° toward the unloading area so that the box opening faces downward. After unloading is completed, the lifting arm puts the empty collection box back into the AGV transport vehicle, the fixing device is released, the AGV transport vehicle re-fixes the collection box and returns to the preset waiting position, and the unloading device switches back to standby mode.
[0014] The construction waste recycling production line sorting and conveying system and method described in this application involve the sorting, collection, transportation, and unloading of materials in a fully automated, unmanned manner, avoiding human error and mixing.
[0015] By matching the production line process, it is suitable for the characteristics of construction waste sorting materials, avoiding spillage and reducing transportation efficiency.
[0016] The conveying process incorporates weighing steps for various miscellaneous items, improving management efficiency.
[0017] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the system structure and a flowchart of the sorting and conveying system of the construction waste recycling production line in this application. Figure 2 This is a schematic diagram of the discharge trough in this application; Figure 3 This is a schematic diagram of the collection box structure in this application; Figure 4 This is a schematic diagram of the AGV transport vehicle in this application; Figure 5 This is a schematic diagram of the unloading device in this application.
[0020] icon: 1-Discharge chute; 11-Chest body; 12-Installation component; 13-Level detector; 14-Electric valve; 2-Collection box; 21-Box body; 22-Flipping mechanism; 23-Support; 24-Lifting ring; 25-Limiting hole; 26-Positioning hole; 3-AGV transport vehicle; 31-Frame; 32-Lifting device; 33-Wheels; 34-Limiter; 35-Positioner; 4-Weighing device; 5-Unloading device; 51-Unloading baffle; 52-Lifting rail; 53-Lifting arm; 54-Fixer. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0022] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0023] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0024] See Figure 1 and combined Figures 2-5 The construction waste recycling production line sorting material conveying system in this application includes a discharge chute 1, which is installed at the sorting material discharge position of the construction waste recycling production line and unloads the sorted material into the container below. Collection box 2 is used to receive and contain sorted items discharged from the discharge chute 1; AGV transport vehicle 3 is used to carry and transport the collection box 2; Weighing device 4 is used to weigh the AGV transport vehicle 3 and its mounted collection box 2; Unloading device 5 is used to unload the sorted items from the collection box 2 to a designated unloading area; and The conveying control system is communicatively connected to the discharge chute 1, AGV transport vehicle 3, weighing device 4 and unloading device 5, respectively, so as to control the components to work together to complete the automatic collection, transportation, weighing and unloading of sorted items.
[0025] The specific configuration quantity is determined by the number of sorting outlets, the types of sorting items, and the amount of sorting items discharged. For example, if the production line is configured with four different types of sorting outlets, then four discharge troughs 1 and four sets of unloading devices 5 are required, along with at least five collection boxes 2, two AGV transport vehicles 3, and one weighing device 4.
[0026] The sorting and conveying method of the construction waste recycling production line in this application includes a receiving step, a conveying step, a weighing step, a lifting step, and an unloading step.
[0027] The receiving step is that the first sorted item falls into the first collection box 2 through the first discharge chute 1 until the first collection box 2 reaches the "full box" state through monitoring.
[0028] Specifically, the first discharge chute 1 is installed at the discharge position of the first sorted material in the construction waste recycling production line, and the first collection box 2 is located below the first discharge chute 1. An electric valve 14 is installed on the first discharge chute 1. When the conveying control system detects that the first collection box 2 is in place, it controls the electric valve 14 on the first discharge chute 1 to open, and the first sorted material is unloaded into the first collection box 2. A material level detector 13 is installed on the first discharge chute 1. When the material level detector 13 detects that the first collection box 2 is "full", the conveying control system controls the electric valve 14 on the first discharge chute 1 to close. During the period when the electric valve 14 is closed, the first discharge chute 1 temporarily buffers the sorted material discharged from the production line.
[0029] After the first collection box 2 is "full", the first AGV transport vehicle 3 carries the first collection box 2 to the first weighing device 4, and the second AGV transport vehicle 3 carries the second collection box 2 to the bottom of the first discharge chute 1 to continue the material receiving process.
[0030] Specifically, after the conveying control system closes the electric valve 14 on the first discharge chute 1, the flap mechanism 22 on the first collection box 2 presses down to compact the sorted items inside the box to prevent spillage. After the first AGV transport vehicle 3 is positioned below the first collection box 2, the lifting device 32 on the first AGV transport vehicle 3 lifts the first collection box 2 and fixes it with the limiter 34 and the positioner 35. The conveying control system plans the driving route, and then the first AGV transport vehicle 3 transports the first collection box 2 to the weighing device 4 according to the set route. After the space below the first discharge chute 1 is empty, the second AGV transport vehicle 3 transports the "empty box" second collection box 2 to the space below the first discharge chute 1. After the second collection box 2 is in place, the conveying control system controls the electric valve 14 on the first discharge chute 1 to open and continue the receiving process.
[0031] The weighing process involves the first AGV transport vehicle 3 carrying a "full" first collection box 2 to the weighing device, where the conveying control system reads data such as the first sorted item and the full load weight of the first AGV transport vehicle 3. After the first collection box 2 is unloaded, the first AGV transport vehicle 3 carries an "empty" first collection box 2 to the weighing device, where the conveying control system reads data such as the empty load weight of the first AGV transport vehicle 3. Finally, the two sets of data are subtracted to obtain the unload weight data of the first sorted item for this unloading.
[0032] Specifically, the first AGV transport vehicle 3 carries the "full" first collection box 2 to the preset waiting position. After the conveying control system confirms that the weighing value of the weighing device is zero, the first AGV transport vehicle 3 carries the "full" first collection box 2 to the weighing position of the weighing device. After the heavy load weighing data stabilizes, the conveying control system reads data such as the first sorted item and the full load weight of the first AGV transport vehicle 3. After the conveying control system confirms that the preset first unloading device 5 of the first sorted item is in "standby" state, the first AGV transport vehicle 3 carries the "full" first collection box 2 to the preset position of the first unloading device 5. After the first collection box 2 is unloaded, the first AGV transport vehicle 3 carries the "empty" first collection box 2 to the preset waiting position. After the conveying control system confirms that the weighing value of the weighing device has returned to zero, the first AGV transport vehicle 3 carries the "empty box" first collection box 2 to the weighing position of the weighing device; after the heavy load weighing data stabilizes, the conveying control system reads data such as the empty weight of the first AGV transport vehicle 3; finally, the full load weight of the first AGV transport vehicle 3 is subtracted from the empty weight of the first AGV transport vehicle 3 to obtain the unloading weight data of the first sorted item; after the conveying control system allocates an empty collection box 2 storage position and an AGV transport vehicle 3 parking position, the first AGV transport vehicle 3 carries the "empty box" first collection box 2 to the collection box 2 storage position for storage, and then the first AGV transport vehicle 3 goes to the AGV transport vehicle 3 parking position to "standby".
[0033] The lifting step is that the first AGV transport vehicle 3 carries the "full" first collection box 2 to the preset position of the first unloading device 5. After the limiter 34 of the first AGV transport vehicle 3 is disconnected from the first collection box 2, the first collection box 2 is fixed by the lifting arm 53 of the first unloading device 5. The lifting arm 53 of the first unloading device 5 lifts the first collection box 2 to the top of the first unloading device 5.
[0034] Specifically, the first AGV transport vehicle 3, carrying a full first collection box 2, transports it to the preset waiting position of the first unloading device 5, and the first unloading device 5 changes from a "standby" state to a "working" state; the first AGV transport vehicle 3, carrying a full first collection box 2, moves towards the lifting arm 53 of the first unloading device 5, so that the lifting arm 53 of the first unloading device 5 inserts into the lifting ring 24 on the first collection box 2; when the first collection box 2 is in place, the limiter 34 of the first AGV transport vehicle 3 disconnects from the first collection box 2, and the retainer 54 on the lifting arm 53 of the first unloading device 5 fixes and locks the first collection box 2; after the conveying control system receives the positioning signal of the retainer 54, the first unloading device 5 lifts the first collection box 2 to the preset top position.
[0035] The unloading process involves the first unloading device 5 lifting arm 53 tilting the "full" first collection box 2 180° toward the unloading area so that the box opening faces downwards. After the unloading action is completed, the first unloading device 5 lifting arm 53 transports the "empty" first collection box 2 back to the first AGV transport vehicle 3, and then the first AGV transport vehicle 3 transports the "empty" first collection box 2 to the weighing device.
[0036] Specifically, after the lifting arm 53 of the first unloading device 5 is in place, the lifting arm 53 bends upward, causing the "full" first collection box 2 to tilt 180° towards the unloading area, with the opening of the first collection box 2 facing downward. After the first collection box 2 is in place, the flipping mechanism 22 inside the first collection box 2 is activated. After completing the preset action, the lifting arm 53 of the first unloading device 5 places the "empty" first collection box 2 back onto the first AGV transport vehicle 3. The fixing device 54 on the lifting arm 53 of the first unloading device 5 is released, and the limiter 34 of the first AGV transport vehicle 3 fixes the first collection box 2. The first AGV transport vehicle 3, carrying the "empty" first collection box 2, moves in the opposite direction to the lifting arm 53 of the first unloading device 5 until it returns to the preset waiting position of the first unloading device 5. The first unloading device 5 is then adjusted from the "working" state to the "standby" state. Afterward, the first AGV transport vehicle 3, carrying the "empty" first collection box 2, transports it to the weighing device 4 along the set route.
[0037] This invention replaces manual labor with trolleys or conveying equipment with a sorting and conveying system and method for construction waste recycling production lines, completing tasks such as material collection, transfer, and unloading. The number of on-site workers replaced by the intelligent conveying system is related to the production line's operating conditions, but it can replace at least three on-site workers, achieving unmanned intelligent conveying of sorting materials at the construction waste recycling production line.
[0038] Compared to existing traditional transportation methods, this method enables unmanned and intelligent production on-site of construction waste recycling production line, reducing restrictions on workshop layout and construction and operation costs, and avoiding heavy physical labor for on-site personnel.
[0039] It enables accurate detection of the weight of various sorted items and accurate unloading of various sorted items, avoiding mixing of sorted items due to human error.
[0040] In some existing conveying systems, due to the differences in material transport conditions, there is no need to consider factors such as preventing spillage and compaction. At the same time, during the unloading process, manual operation of the cantilever crane is still required. There is a serious mismatch between the accuracy that manual operation can meet and the accuracy required by intelligent equipment, which can easily lead to failures in subsequent steps.
[0041] Since construction waste sorting materials include loose components such as plastics and paper, anti-spillage and internal compaction devices are considered in the connection steps of discharge chute 1 and collection box 2, as well as in the conveying steps of collection box 2.
[0042] The conveying system and conveying method in this application require no human intervention throughout the entire process, and achieve highly precise operation through positioning sensors, contact sensors, etc.
[0043] From the perspective of the specific components of the conveying system, the discharge trough 1 includes a trough body 11, an installation component 12, a material level detector 13, and an electric valve 14.
[0044] Specifically, the trough 11 is fixed to the construction waste recycling production line by the mounting component 12; the upper opening of the trough 11 is the receiving port for sorted materials, and the lower opening of the trough 11 is the unloading port for sorted materials; a material level detector 13 is installed at the lower opening of the trough 11 to detect the amount of material in the collection box 2; an electric valve 14 is installed at the lower opening of the trough 11, and the electric valve 14 opens or closes to control the unloading of sorted materials.
[0045] The collection box 2 includes a box body 21, a flip-plate mechanism 22, a support 23, a lifting ring 24, a limiting hole 25, and a positioning hole 26.
[0046] Specifically, the top of the box 21 is an open sorting receiving port; two flip-plate mechanisms 22 are installed inside the box 21, which are used to compact the sorted items inside the box 21 when receiving materials and to clean the sorted items inside the box 21 when unloading materials; the bottom of the box 21 is a support 23; two lifting rings 24 are installed on each of the other two sides of the box 21, which are used for lifting and unloading; two limiting holes 25 are provided on each diagonal of the support 23, which are used to fix the AGV transport vehicle 3 to the collection box 2; two positioning holes 26 are provided on each diagonal of the support 23, which are used to position the AGV transport vehicle 3 to the collection box 2.
[0047] The AGV transport vehicle 3 includes a frame 31, a lifting device 32, wheels 33, a limiter 34, and a positioner 35.
[0048] Specifically, the frame 31 is equipped with four lifting devices 32 at the bottom, which are connected to the wheels 33 respectively, for lifting the collection box 2 off the ground for transport; two limiters 34 are set on each diagonal of the top of the frame 31 for fixing the AGV transport vehicle 3 and the collection box 2; and two locators 35 are set on each diagonal of the top of the frame 31 for positioning the AGV transport vehicle 3 and the collection box 2.
[0049] The unloading device 5 includes an unloading baffle 51, a lifting track 52, a lifting arm 53, and a fixing device 54.
[0050] Specifically, the back of the unloading baffle 51 is the unloading area for sorted items, and the front of the unloading baffle 51 is the operating area for the collection box 2. The front of the unloading baffle 51 is equipped with a lifting rail 52 and a lifting arm 53, which moves up and down via the lifting rail 52. Each lifting arm 53 has a fixing device 54 installed at its front end for fixing the collection box 2. The lifting arm 53 is divided into three sections and can be folded twice to flip the collection box 2 180° from the front to the back for unloading.
[0051] In the construction waste recycling production line, the material receiving step involves the sorted materials falling into the collection box 2 through the discharge chute 1 until the collection box 2 reaches a "full" state as monitored. Specifically, the discharge chute 1 is installed at the discharge position of the sorted materials in the construction waste recycling production line, and the electric valve 14 installed on the discharge chute 1 is initially closed. When the conveying control system controls the AGV transport vehicle 3 to deliver the collection box 2 to the preset receiving position, the electric valve 14 installed on the discharge chute 1 opens, and the sorted materials are unloaded into the collection box 2 through the discharge chute 1. During the receiving process, the material level detector 13 monitors the material receiving status in the collection box 2 in real time. When the material level detector 13 detects that the collection box 2 is "full", the conveying control system controls the electric valve 14 to close. In particular, during the period when the electric valve 14 is closed, the discharge chute 1 can temporarily buffer the sorted materials of the production line.
[0052] After the collection box 2 is "full", the AGV transport vehicle 3 carries the collection box 2 to the weighing device 4. Specifically, after the conveying control system controls the electric valve 14 to close, the flipping mechanism 22 on the collection box 2 presses down to compact the sorted items and prevents them from spilling. The conveying control system controls the AGV transport vehicle 3 to a preset position below the discharge chute 1. The lifting device 32 lifts the collection box 2, and the limiter 34 and the positioning device 35 are aligned with the limit hole 25 and the positioning hole 26, respectively. When the collection box 2 is lifted to the preset height, the limiter 34 rotates 180° to fix the collection box 2 on the AGV transport vehicle 3. The conveying control system plans the driving route and controls the AGV transport vehicle 3 to carry the collection box 2 to the weighing device 4.
[0053] The weighing process includes two steps: full-load weighing and empty-load weighing. Full-load weighing involves the AGV transport vehicle 3 carrying a full collection box 2 to the weighing device 4, where the conveying control system reads data such as the sorted items and the full-load weight. Specifically, the AGV transport vehicle 3 carries the full collection box 2 to the preset waiting position of the weighing device 4; after the conveying control system confirms that the weighing value of the weighing device 4 has reached zero, it controls the AGV transport vehicle 3 to carry the full collection box 2 to the weighing position of the weighing device 4; after the weighing data stabilizes, the conveying control system reads data such as the sorted items and the full-load weight; after the conveying control system confirms that the preset unloading device 5 is in "standby" mode, it controls the AGV transport vehicle 3 to carry the full collection box 2 to the preset waiting position of the unloading device 5.
[0054] After unloading from collection box 2, the AGV transport vehicle 3 carries the empty collection box 2 to the weighing device 4. The conveying control system reads the empty weight and other data, and subtracts the empty weight from the previously read full-load weight to obtain the unloading weight data of the sorted item. Specifically, after the full collection box 2 is unloaded as an empty box, the AGV transport vehicle 3 carries the empty collection box 2 to the preset waiting position of the weighing device 4; after the conveying control system confirms that the weighing value of the weighing device 4 is zero, it controls the AGV transport vehicle 3 to carry the empty collection box 2 to the weighing position of the weighing device 4; after the weighing data is stable, the conveying control system reads the empty weight and other data; after the conveying control system allocates vacant storage and parking spaces, it controls the AGV transport vehicle 3 to carry the empty collection box 2 to the collection box 2 storage space, and then the AGV transport vehicle 3 is adjusted to the "standby" state at the AGV transport vehicle 3 parking space.
[0055] The lifting step involves the AGV transport vehicle 3 carrying the "full" collection box 2 to the preset waiting position of the unloading device 5, and then moving forward so that the lifting arm 53 of the unloading device 5 is inserted into the lifting ring 24 of the collection box 2 and fixed by the fixing device 54. The lifting arm 53 then lifts the collection box 2 to the top of the unloading device 5. Specifically, the AGV transport vehicle 3, carrying a full collection box 2, transports it to the preset waiting position of the unloading device 5, and the unloading device 5 is switched from the "standby" state to the "working" state. The AGV transport vehicle 3, carrying a full collection box 2, moves towards the lifting arm 53 of the unloading device 5, so that the lifting arm 53 is inserted into the lifting ring 24 on the collection box 2. After the collection box 2 moves to the lifting position, the limiter 34 of the AGV transport vehicle 3 rotates 180°, disconnecting from the collection box 2. The retainer 54 on the lifting arm 53 pops up, fixing the collection box 2 on the lifting arm 53. After receiving the positioning signal of the retainer 54, the conveying control system controls the lifting arm 53 to lift the collection box 2 to the preset position at the top of the unloading device 5.
[0056] The unloading process involves the lifting arm 53 tilting the "full" collection box 2 towards the unloading area at a preferred angle of 180° for unloading. After unloading, the lifting arm 53 transports the "empty" collection box 2 back to the AGV transport vehicle 3, which then transports it to the weighing device 4. Specifically, after the lifting arm 53 raises the collection box 2 to the preset position at the top of the unloading device 5, the lifting arm 53 bends upward, tilting the "full" collection box 2 towards the unloading area at a preferred angle of 180°, with the box opening facing downward. After the lifting arm 53 bends to its final position, the flipping mechanism 22 inside the collection box 2 activates. After completing the preset action, the lifting arm 53 places the "empty" collection box 2 back onto the AGV transport vehicle 3, with the limiter 34 and the positioning device 35 aligned with the limit hole 25 and the positioning hole 26, respectively. After the arm 53 reaches the preset position, the fixing device 54 is released, and the limiter 34 of the AGV transport vehicle 3 rotates at a certain angle, preferably 180°, to fix the collection box 2 on the AGV transport vehicle 3. The AGV transport vehicle 3, carrying the "empty box" collection box 2, moves in the opposite direction to the lifting arm 53 of the unloading device 5 and returns to the preset waiting position of the unloading device 5. Then, the AGV transport vehicle 3, carrying the "empty box" collection box 2, transports it to the weighing device 4 according to the set route, and the unloading device 5 is adjusted from the "working" state to the "standby" state.
[0057] The construction waste recycling production line sorting and conveying system and method described in this application, through the matching intelligent conveying system and control process, can match the existing operating conditions of construction waste recycling production lines, significantly reduce the number of on-site operators, and maximize the improvement of the cost, efficiency and safety of sorting and conveying.
[0058] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.
[0059] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A sorting and conveying system for a construction waste recycling production line, characterized in that, include: The discharge chute is installed at the discharge point of the sorted materials in the construction waste recycling production line and unloads the sorted materials into the container below. A collection box for receiving and holding sorted items discharged from the discharge chute; AGV transport vehicle, used to carry and transport the collection box; A weighing device is used to weigh the AGV transport vehicle and its onboard collection box; The unloading device is used to unload the sorted items in the collection box to the designated unloading area; as well as The conveying control system is communicatively connected to the discharge chute, AGV transport vehicle, weighing device and unloading device to control the components to work together to complete the automatic collection, transportation, weighing and unloading of sorted items.
2. The sorting and conveying system for the construction waste recycling production line according to claim 1, characterized in that, The discharge trough includes a trough body, mounting components, a material level detector, and an electric valve; The tank is fixed to the production line by the mounting component. The upper opening of the tank is the receiving port, and the lower opening is the unloading port. A material level detector is installed at the bottom to detect the amount of material in the collection box; an electric valve is installed at the bottom to control the start and stop of unloading the sorted items.
3. The sorting and conveying system for the construction waste recycling production line according to claim 1, characterized in that, The collection box includes a box body, a flap mechanism, a support, a lifting ring, a limiting hole, and a positioning hole; The top opening of the box is an open receiving port; the flip-plate mechanism is installed inside the box to compact the sorted items inside the box and assist in unloading. The lifting rings are disposed on both sides of the box body and are used to cooperate with the unloading device for lifting. The limiting hole and the positioning hole are provided on the support for positioning and fixing with the AGV transport vehicle.
4. The sorting and conveying system for the construction waste recycling production line according to claim 1, characterized in that, The AGV transport vehicle includes a frame, a lifting device, wheels, limiters, and locators; the lifting device is located at the bottom of the frame and connected to the wheels, and is used to lift the collection box for transport. The limiter and the locator are located on the top of the frame and are used to fix and position the collection box.
5. The sorting and conveying system for the construction waste recycling production line according to claim 1, characterized in that, The unloading device includes an unloading baffle, a lifting track, a lifting arm, and a fixing device; The back of the unloading baffle is the unloading area, and the front is the collection box operation area; the lifting rail and the lifting arm are installed on the front of the unloading baffle, and the lifting arm can move up and down along the lifting rail; The fixture is installed at the front end of the lifting arm and is used to fix the collection box; The lifting arm is a foldable structure used to flip the collection box from the front to the back for unloading.
6. A method for conveying sorted materials in a construction waste recycling production line, implemented using the construction waste recycling production line sorted material conveying system according to any one of claims 1-5, characterized in that, Includes the following steps: Receiving steps: The sorted items fall into the collection box through the discharge chute until the collection box is full; Transportation steps: The AGV transport vehicle carries the full collection box to the weighing device; Weighing steps: Weigh the full collection box when it is full, and weigh the empty collection box after unloading to calculate the weight of the sorted items. Lifting steps: Transfer the full collection box from the AGV transport vehicle to the unloading device and lift it to the unloading position; Unloading procedure: Tilt and flip the full collection box to unload the sorted items, and then return the empty collection box to the AGV transport vehicle.
7. The method for conveying sorted materials in the construction waste recycling production line according to claim 6, characterized in that, The receiving step also includes: After the AGV transport vehicle is controlled by the conveying control system to deliver the collection box to the preset receiving position below the discharge chute, the electric valve on the discharge chute is opened, and the sorted items are unloaded into the collection box through the discharge chute. The material level detector monitors the amount of material in the collection box in real time. When the box is full, the conveying control system controls the electric valve to close. During the period when the electric valve is closed, the discharge chute temporarily buffers the sorted materials discharged from the production line.
8. The method for conveying sorted materials in the construction waste recycling production line according to claim 6, characterized in that, The conveying step further includes: After the electric valve is closed, the flap mechanism inside the collection box presses down to compact the sorted items and prevent spillage. The AGV transport vehicle drives to the bottom of the collection box, lifts the collection box with the lifting device, and uses limiters and positioners to fix the collection box to the AGV transport vehicle; The conveying control system plans the driving route and controls the AGV transport vehicle to transport the collection box to the weighing device.
9. The method for conveying sorted materials in the construction waste recycling production line according to claim 6, characterized in that, The weighing step also includes: Full load weighing: The AGV transport vehicle carries a full collection box to the preset waiting position of the weighing device. After the weighing device returns to zero, it drives to the weighing position and reads the full load weight data. Empty load weighing: After unloading, the AGV transport vehicle carries the empty container collection box to the weighing device again to read the empty load weight data; The conveying control system subtracts the empty weight from the full load weight to obtain the unloading weight data of the sorted items, and then allocates the storage positions of the collection boxes and the parking positions of the AGVs.
10. The method for conveying sorted materials in the construction waste recycling production line according to claim 6, characterized in that, The lifting and unloading steps also include: The AGV transport vehicle carries a full collection box to the preset waiting position of the unloading device, and the unloading device switches to working mode. The AGV transport vehicle moves towards the lifting arm of the unloading device, so that the lifting arm is inserted into the lifting ring of the collection box, the retainer locks the collection box, and the AGV transport vehicle is disconnected from the collection box; The lifting arm raises the collection box to the top of the unloading device, and then bends upward to tilt the collection box 180° toward the unloading area so that the box opening faces downward. After unloading is completed, the lifting arm puts the empty collection box back into the AGV transport vehicle, the fixing device is released, the AGV transport vehicle re-fixes the collection box and returns to the preset waiting position, and the unloading device switches back to standby mode.