Strip discharging system and method

Abstract

The invention provides a strip discharging system and method. The strip discharging system comprises a material frame trolley, a conveying device and a feeding station. The material frame trolley comprises a frame, and wheels are arranged on the frame. A first hook body is arranged at the front end of the frame, and a second hook body corresponding to the first hook body is arranged at the rear end of the frame; the first hook body of one material frame trolley and the second hook body of the other material frame trolley are automatically hooked and locked when moving in opposite directions; the conveying device is detachably connected with the frame and drives the material frame trolley to move. The feeding station is provided with an unlocking device corresponding to the first hook body or the second hook body so as to unlock the first hook body and the second hook body. According to the strip discharging system and method, feeding of the full material frames and discharging of the empty material frames can be completed only through one storage location, the equipment and the occupied area of the equipment can be reduced, and the switching efficiency of the empty frames and the full frames is improved.

Description

Technical Field

[0001] This invention relates to the field of production line technology, and in particular to a material feeding system and method. Background Technology

[0002] Currently, the conveyor system on production lines typically uses a two-position configuration for the material boxes. The method involves the conveyor transporting a full box to the second position before the first position is empty. The box then detaches from the full box and returns to the first position to dock with an empty box, which is then sent back to the loading area for reloading. This cycle repeats continuously, achieving a continuous supply to the production line. However, this system has a significant drawback: 1. Two identical storage locations are required (each set of equipment needs to be duplicated and invested in). 2. The conveying equipment needs to go in and out of the storage location four times to complete one replenishment, which affects the efficiency of switching between empty and full frames of the conveying equipment; 3. Because two identical storage locations are required, the production line's floor space is affected, resulting in an actual storage location utilization rate of only 50%, which reduces the number of parts that can be loaded at each workstation. Furthermore, the conveyor system requires an additional two storage locations for its movement trajectory to connect with the conveyor system when entering and exiting the storage locations. 4. The layout of ground positioning equipment and other equipment required in the warehouse is very crowded, and each warehouse location requires one set, which is not conducive to the later expansion of the production line.

[0003] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Summary of the Invention

[0004] The purpose of this invention is to provide a material feeding and unloading system that requires only one storage location to complete the feeding of full material frames and the unloading of empty material frames, thereby reducing equipment and its floor space and improving the switching efficiency between empty and full frames.

[0005] Another objective of this invention is to provide a material feeding and unloading system method, which utilizes the aforementioned material feeding and unloading system to complete the loading of full material frames and the unloading of empty material frames with only one storage location, thereby improving the switching efficiency between empty and full frames.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A material feeding and unloading system includes a material frame car, a conveying device, and a loading station; The material frame cart includes a frame, and the frame is equipped with wheels; the front end of the frame is provided with a first hook, and the rear end of the frame is provided with a second hook corresponding to the first hook; when the first hook of the material frame cart moves toward the second hook of another material frame cart, it automatically hooks and locks itself. The conveying device is detachably connected to the frame and drives the material frame cart to move; The loading station is equipped with an unlocking device corresponding to the first hook or the second hook to release the lock between the first hook and the second hook.

[0007] According to one embodiment of the present invention, the first hook body includes a first plate extending forward of the frame, the first plate having an upward first protrusion at its end, and the front end of the first protrusion having a guide slope whose height gradually increases from front to back; the second hook body includes a base and a second plate, the base being fixedly connected to the frame, the second plate extending rearward of the frame; the second plate being hinged to the base, allowing the second plate to rotate upward around the base; and the second plate having a downward second protrusion at its end.

[0008] According to one embodiment of the present invention, the bottom of the second plate is provided with a rotating part, and the unlocking device includes a first driving mechanism and a lever. The first driving mechanism can drive the lever to push the rotating part, so that the second plate rotates upward.

[0009] According to one embodiment of the present invention, the loading station is provided with an X-axis positioning mechanism for positioning the material frame vehicle in the front-to-back direction.

[0010] According to one embodiment of the present invention, the X-direction positioning mechanism includes a second driving mechanism and a first driving mechanism, both of which are provided with clamping arms corresponding to the frame; the clamping arm of the first driving mechanism moves synchronously with the lever, such that when the clamping arms of the first driving mechanism and the second driving mechanism clamp the frame, the lever pushes the rotating part.

[0011] According to one embodiment of the present invention, the bottom of the frame is provided with a Y-direction positioning mechanism for positioning the material frame trolley in the left and right directions. The Y-direction positioning mechanism includes two first vertical beams arranged opposite each other. The bottom of the first vertical beam is provided with a first rotating wheel, and the axis of rotation of the first rotating wheel is in the vertical direction. The loading station is provided with a first slide rail corresponding to the first rotating wheel, and the side of the first slide rail abuts against the first rotating wheel.

[0012] According to one embodiment of the present invention, the bottom of the frame is provided with a Z-axis positioning mechanism for positioning the material frame trolley in the vertical direction. The Z-axis positioning mechanism includes two second vertical beams arranged opposite each other. The bottom of the second vertical beams is provided with a second rotating wheel, and the rotating axis of the second rotating wheel is in the left-right direction. The loading station is provided with a second slide rail corresponding to the second rotating wheel, and the top surface of the second slide rail abuts against the second rotating wheel.

[0013] According to one embodiment of the present invention, the loading station is provided with a wheel guide mechanism corresponding to the wheel, the wheel guide mechanism including two parallel positioning plates, the ends of the two positioning plates being far apart from each other in a figure-eight shape.

[0014] According to one embodiment of the present invention, the front end of the frame is provided with a first docking block, and the rear end of the frame is provided with a second docking block corresponding to the first docking block; the first docking block and the second docking block are provided with corresponding magnetic suction components.

[0015] According to one embodiment of the present invention, the bottom of the frame is provided with a traction plate, the traction plate is provided with a vertical traction hole, and the conveying device is provided with a lifting rod corresponding to the traction hole.

[0016] According to one embodiment of the present invention, the traction plate is U-shaped, making the traction hole an elongated notch; a seat is provided on both sides of the end of the traction hole, and a pivot perpendicular to the length direction of the traction hole is provided between the two seats; an adjustment plate is provided on the pivot, the adjustment plate is located above the traction hole and can rotate around the pivot; the adjustment plate is normally in a horizontal state and covers the traction hole.

[0017] According to one embodiment of the present invention, a material frame identification part is provided on the side of the frame; And / or, the conveying device is an AGV.

[0018] The present invention also provides a material discharge method, which utilizes the above-mentioned material discharge system and includes the following steps: A. After the material on the material frame car at the loading station is used up, the conveying device drives the full material frame car to the rear of the empty material frame car, and automatically hooks and locks the first hook of the full material frame car with the second hook of the empty material frame car. B. The full material frame car continues to move forward, pushing the empty material frame car out of the loading station, and the full material frame car is located at the loading station; the unlocking device releases the lock between the first hook and the second hook; C. The conveying device disengages from the full material frame car and connects to the empty material frame car, driving the empty material frame car to move to the loading point, becoming a new full material frame car.

[0019] According to one embodiment of the present invention, in step B, after the full material frame car is located at the loading station, the full material frame car is positioned by the X-axis positioning mechanism, Y-axis positioning mechanism and Z-axis positioning mechanism on the loading station.

[0020] Compared with the prior art, the advantages and beneficial effects of the embodiments of the present invention are as follows: The material handling system and method provided in this invention can accurately arrange material frames without complex ground mechanisms and auxiliary equipment. One conveyor device can accurately place full material frames and remove empty material frames along the shortest trajectory, and the entire material frame switching time is fast. The material handling system and method provided in this invention can complete the switching between empty and full material frames without using traditional AB storage, saving the space required for one storage unit and the 7-axis robot needed for AB storage frame retrieval, thus reducing operating costs. After the 7-axis robot is no longer in operation, the robot can retrieve parts from the material frame and then perform other tasks, such as applying adhesive in mid-air, improving robot utilization efficiency and reducing the number of related tooling. Attached Figure Description

[0021] The accompanying drawings, which form part of this specification, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. Wherein: Figure 1 This is a schematic diagram of the structure of the material frame cart of the material discharge system provided in an embodiment of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the material frame cart of the material feeding and unloading system provided in an embodiment of the present invention from another angle; Figure 4 This is a top view of the material frame cart of the material feeding and unloading system provided in an embodiment of the present invention; Figure 5 for Figure 4 Cross-sectional view along the BB direction; Figure 6 for Figure 4 A cross-sectional view along the CC direction; Figure 7 This is a schematic diagram of the structure of the conveying device of the material discharge system provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the loading station of the material feeding system provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the front end of the loading station of the material feeding system provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the rear end of the loading station of the material feeding system provided in an embodiment of the present invention; Figure 11 This is a top view of the loading station of the material feeding system provided in an embodiment of the present invention; Figure 12 A cross-sectional schematic diagram of the loading station of the material feeding system provided in an embodiment of the present invention; Figure 13 A schematic diagram showing the connection state of the first hook and the second hook of the material feeding system provided in an embodiment of the present invention; Figure 14 This is a schematic diagram showing the unlocked state of the first hook and the second hook of the material feeding system provided in an embodiment of the present invention; Figure 15 This is a schematic diagram showing the connection status of the conveying device and the material frame car in the material discharge system provided in an embodiment of the present invention; Figure 16 This is a schematic diagram of the structure of the material frame identification part of the material feeding system provided in an embodiment of the present invention; Figure 17 This is a schematic flowchart of the material feeding and unloading method provided in an embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures: 1. Material frame trolley; 11. Frame; 12. Wheel; 13. First hook; 131. First plate; 132. First protrusion; 133. Guide slope; 14. Second hook; 141. Base; 142. Second plate; 143. Second protrusion; 144. Rotating part; 15. First docking block; 16. Second docking block; 17. Traction plate; 171. Traction hole; 172. Seat; 173. Pivot; 174. Adjusting plate; 18. Material frame identification part; 181. Base plate; 18 2. Insertion hole; 183. Insertion block; 2. Conveying device; 21. Lifting rod; 3. Loading station; 31. First slide rail; 32. Second slide rail; 4. Unlocking device; 41. First drive mechanism; 42. Lever; 5. X-axis positioning mechanism; 51. Second drive mechanism; 52. Clamping arm; 6. Y-axis positioning mechanism; 61. First vertical beam; 62. First rotating wheel; 7. Z-axis positioning mechanism; 71. Second vertical beam; 72. Second rotating wheel; 8. Wheel guide mechanism; 81. Positioning plate. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation and not by way of limitation. Indeed, those skilled in the art will recognize that modifications and variations can be made to the invention without departing from its scope or spirit. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the invention encompass such modifications and variations falling within the scope of the appended claims and their equivalents.

[0024] In the description of this invention, the terms "first," "second," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. The terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and do not require the invention to be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. The terms "connected," "linked," and "set up" used in this invention should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a direct connection or an indirect connection through intermediate components; a wired connection, a radio connection, or a wireless communication signal connection. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0025] like Figure 1 , Figure 7 , Figure 8 As shown, this embodiment of the invention provides a material feeding and unloading system, including a material frame trolley 1, a conveying device 2, and a loading station 3. For clarity, definitions are provided. Figure 1 In the diagram, the top is up and the bottom is down (Z-axis), the left is front and the right is back (X-axis), and the direction perpendicular to the paper is left and right (Y-axis). The material frame trolley 1 includes a frame 11 with wheels 12, and materials can be placed on top of the frame 11. The front end of the frame 11 has a first hook 13, and the rear end has a second hook 14 corresponding to the first hook 13. When two material frame trolleys 1 approach each other, the first hook 13 of the rear trolley 1 and the second hook 14 of the front trolley 1 automatically hook and lock as they move towards each other (approaching each other). The conveying device 2 is detachably connected to the frame 11 and drives the material frame trolley 1 to move. The loading station 3 is equipped with an unlocking device 4 corresponding to the first hook 13 or the second hook 14 to release the lock between the first hook 13 and the second hook 14.

[0026] like Figure 17As shown, in operation, the material feeding and unloading system provided in this embodiment of the invention has a full material frame 1 stationed at the loading station 3 for use by the production line. Behind the loading station 3, another full material frame 1, connected to the conveying device 2, is stationed, and the two material frame 1s are connected by the first hook 13 and the second hook 14. After the material on the material frame 1 at the loading station 3 is used up, the rear full material frame 1 is driven forward by the conveying device 2, pushing the empty material frame 1 out of the loading station 3. The rear full material frame 1 then remains at the loading station 3, continuing to be used by the production line. The unlocking device 4 releases the lock between the first hook 13 and the second hook 14, allowing the two material frame 1s to separate. The conveying device 2 disengages from the full material frame 1 and connects to the empty material frame 1 in front, driving the empty material frame 1 to move to the loading point, becoming a new full material frame 1. It then moves back to the rear of the loading station 3 and reconnects to the material frame 1 on the loading station 3. Alternatively, to save space, only one material frame 1 remains on the loading station 3. The full material frame 1 remains at the loading point. When the material on the material frame 1 at the loading station 3 is used up or nearly used up, the conveying device 2 drives the full material frame 1 to the rear of the empty material frame 1, automatically hooking and locking the first hook 13 of the full material frame 1 with the second hook 14 of the empty material frame 1. This process continues until the conveying device 2 drives the empty material frame 1 to the loading point, becoming a new full material frame 1, and remaining there.

[0027] The material handling system provided in this invention can accurately arrange material frames without complex ground mechanisms or auxiliary equipment. One conveyor device can accurately place full material frames and remove empty ones using the shortest trajectory, and the entire frame switching time is fast. This system eliminates the need for traditional AB storage bins to switch between empty and full material frames, saving the space required for one storage bin and the 7-axis robot needed for AB bin material frame retrieval, thus reducing operating costs. Furthermore, when the 7-axis robot is not in operation, it can retrieve parts from the material frames and then perform other tasks, such as applying adhesive in mid-air, improving robot efficiency and reducing the number of related tooling components.

[0028] In one embodiment of the present invention, the conveying device 2 is an AGV, which has low traction force and can save energy.

[0029] like Figure 13 , Figure 14As shown, in one embodiment of the present invention, the first hook 13 includes a first plate 131 extending forward of the frame 11. The first plate 131 has an upward first protrusion 132 at its end, and the front end of the first protrusion 132 has a guide ramp 133 whose height gradually increases from front to back. The second hook 14 includes a base 141 and a second plate 142. The base 141 is fixedly connected to the frame 11, and the second plate 142 extends rearward of the frame 11. The second plate 142 is hinged to the base 141, allowing the second plate 142 to rotate upward around the base 141. The second plate 142 has a downward second protrusion 143 at its end. When the first hook 13 and the second hook 14 move toward each other (approach each other), the second protrusion 143 slides past the guide ramp 133 and falls into the groove formed between the first protrusion 132 and the front end of the frame 11, thereby locking the first hook 13 and the second hook 14. To reduce friction, a roller can be provided at the end of the second protrusion 143. Furthermore, to unlock the first hook 13 and the second hook 14, a rotating part 144 is provided at the bottom of the second plate 142. The unlocking device 4 includes a first drive mechanism 41 and a lever 42. The first drive mechanism 41 can drive the lever 42 to push the rotating part 144, causing the second plate 142 to rotate upwards. Specifically, the second plate 142 is L-shaped, with its corner hinged to the base 141 via a pivot. The rotating part 144 is formed at the bottom of the second plate 142. The first drive mechanism 41 can be a cylinder, and the lever 42 is driven by the cylinder to rotate or translate.

[0030] In order to position the material frame 1 to be loaded in the front and rear directions, such as Figures 8-12 As shown, in one embodiment of the present invention, the loading station 3 is provided with an X-direction positioning mechanism 5 for positioning the material frame trolley 1 in the front-rear direction. Specifically, the X-direction positioning mechanism 5 includes a second drive mechanism 51 and a first drive mechanism 41, both of which are provided with clamping arms 52 corresponding to the frame 11. The second drive mechanism 51 and the first drive mechanism 41 can be cylinders, driving their respective clamping arms 52 to rotate or translate, and the two clamping arms 52 work together to clamp the frame 11 of the material frame trolley 1. In addition, the clamping arm 52 of the first drive mechanism 41 moves synchronously with the lever 42, so that when the clamping arms 52 of the first drive mechanism 41 and the second drive mechanism 51 clamp the frame 1, the lever 42 pushes the rotating part 144 to release the lock between the first hook 13 and the second hook 14. In this embodiment, two sets of first drive mechanisms 41 and second drive mechanisms 51 are provided, located on the left and right sides of the material frame trolley 1, respectively.

[0031] To further position the material frame 1 being loaded in the left and right directions, such as... Figure 1 , Figures 3-6As shown, in one embodiment of the present invention, the bottom of the frame 11 is provided with a Y-direction positioning mechanism 6 for positioning the material frame 1 in the left-right direction. The Y-direction positioning mechanism 6 includes two first vertical beams 61 arranged opposite each other in the left-right direction. The bottom of each first vertical beam 61 is provided with a first rotating wheel 62, the axis of rotation of which is vertical. Figures 8-12 As shown, the loading station 3 is equipped with a first slide rail 31 corresponding to the first rotating wheel 62, and the side of the first slide rail 31 abuts against the first rotating wheel 62. The two first slide rails 31 are simultaneously located inside or outside the two first rotating wheels 62 to limit the left and right movement of the material frame 1. In this embodiment, two sets of first vertical beams 61 and first rotating wheels 62 are provided, located at the front and rear of the material frame 1, respectively.

[0032] To further position the material frame 1 being loaded in the vertical direction, such as... Figure 1 , Figures 3-6 As shown, in one embodiment of the present invention, the bottom of the frame 11 is provided with a Z-axis positioning mechanism 7 for positioning the material frame 1 in the vertical direction. The Z-axis positioning mechanism 7 includes two opposing second vertical beams 71, which are arranged in a left-right direction. A second rotating wheel 72 is provided at the bottom of each second vertical beam 71, and the axis of rotation of the second rotating wheel 72 is in the left-right direction. Figures 8-12 As shown, the loading station 3 is equipped with a second slide rail 32 corresponding to the second rotating wheel 72, and the top surface of the second slide rail 32 abuts against the second rotating wheel 72. In this embodiment, two sets of second vertical beams 71 and second rotating wheels 72 are provided, located at the front and rear of the material frame 1, respectively.

[0033] To facilitate guiding the movement of the material frame trolley 1, in one embodiment of the present invention, such as... Figures 8-12 As shown, the loading station 3 is equipped with a wheel guide mechanism 8 corresponding to the wheel 12. The wheel guide mechanism 8 includes two parallel positioning plates 81, the ends of which are far apart and form a V-shape, facilitating the wheel 12 to enter between the two positioning plates 81. In this embodiment, two wheel guide mechanisms 8 are provided, corresponding to the wheels 12 on the left and right sides of the material frame 1, respectively.

[0034] To ensure more precise docking of the two material frame cars, such as Figure 1 , Figures 3-5As shown, in one embodiment of the present invention, the frame 11 has a first docking block 15 at its front end and a second docking block 16 corresponding to the first docking block 15 at its rear end. The first docking block 15 and the second docking block 16 each contain a corresponding magnetic element; for example, one of the first docking block 15 and the second docking block 16 may contain a magnet, while the other may contain an iron block; or, the first docking block 15 and the second docking block 16 may each contain magnets of opposite polarities.

[0035] like Figure 1 , Figure 2 , Figures 4-7 , Figure 15 As shown, in one embodiment of the present invention, the frame 11 is provided with a traction plate 17 at its bottom, the traction plate 17 having a vertical traction hole 171, and the conveying device 2 having a lifting rod 21 corresponding to the traction hole 171. When the lifting rod 21 is raised and inserted into the traction hole 171, it can pull the material frame 1 to move. For example, the second rotating wheel 72 of the material frame 1 can climb uphill to the second slide rail 32 of the loading station 3 under the traction force of the AGV, thereby completing the Z-axis positioning. When the lifting rod 21 is lowered and disengaged from the traction hole 171, it disengages from the entire material frame 1.

[0036] Since the AGV is located below the material frame 1, if the AGV stops inaccurately, the lifting rod 21 and the traction hole 171 will misalign. In this case, the lifting rod 21 may overturn the material frame 1 when it rises, or the material frame 1 may be too heavy and press down on the lifting rod 21, preventing it from rising and engaging with the material frame 1. To solve the above problems, in one embodiment of the present invention, the traction plate 17 is U-shaped, making the traction hole 171 an elongated notch. A seat 172 is provided on both sides of the end of the traction hole 171 (the two ends of the traction plate 17), and a pivot 173 perpendicular to the length direction of the traction hole 171 is provided between the two seats 172. An adjusting plate 174 is provided on the pivot 173, which is located above the traction hole 171 and can rotate around the pivot 173. The adjusting plate 174 is normally horizontal and covers the traction hole 171. When the lifting rod 21 is not aligned with the traction hole 171, the lifting rod 21 can continue to rise and lift the adjusting plate 174 because the traction hole 171 has an elongated notch. In this way, the lifting rod 21 can move forward, apply force to the inner end of the traction hole 171, and pull the material frame trolley 1 forward; the lifting rod 21 can move backward, apply force to the adjusting plate 174, and pull the material frame trolley 1 backward.

[0037] like Figure 1 , Figure 16As shown, in one embodiment of the present invention, the frame 11 is provided with a material frame identification section 18 on its side. Through this material frame identification section 18, the material information carried by the material frame cart 1 can be identified manually or through a vision device. The material frame identification section 18 can be a QR code, barcode, or physical structural feature. For example, the material frame identification section 18 includes a base plate 181 with multiple rows of insertion holes 182. Corresponding insertion blocks 183 are inserted into specific insertion holes. By using different insertion blocks 183 and their combinations, material information can be identified.

[0038] This invention also provides a material discharge method, utilizing the aforementioned material discharge system, such as... Figure 17 As shown, the material discharge method includes the following steps: A. After the material on the material frame car 1 at the loading station 3 is used up, the conveying device 2 drives the full material frame car 1 to the rear of the empty material frame car 1, and automatically hooks and locks the first hook 13 of the full material frame car 1 with the second hook 14 of the empty material frame car 1. B. The full material frame 1 continues to move forward, pushing the empty material frame 1 out of the loading station 3, and the full material frame 1 is located at the loading station 3; the unlocking device 4 releases the lock between the first hook 13 and the second hook 14. C. The conveying device 2 disengages from the full material frame car 1 and connects to the empty material frame car 1, driving the empty material frame car 1 to move to the loading point, becoming a new full material frame car 1.

[0039] In one embodiment of the present invention, in step B, after the fully loaded material frame 1 is located at the loading station 3, the fully loaded material frame 1 is positioned by the X-axis positioning mechanism 5, the Y-axis positioning mechanism 6, and the Z-axis positioning mechanism 7 on the loading station 3. Specifically, the X-axis positioning mechanism 5, the Y-axis positioning mechanism 6, and the Z-axis positioning mechanism 7 can adopt the aforementioned structure.

[0040] The material feeding and unloading method provided by this invention uses only one station to meet the continuous feeding and unloading of material frames, and two material frame cars are sufficient to meet production and turnover needs.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A material discharge system, characterized in that, It includes a material frame car (1), a conveying device (2), and a loading station (3); The material frame cart (1) includes a frame (11) and wheels (12) on the frame (11); a first hook (13) is provided at the front end of the frame (11) and a second hook (14) corresponding to the first hook (13) is provided at the rear end of the frame (11); the first hook (13) of the material frame cart (1) automatically hooks and locks itself when it moves toward the second hook (14) of another material frame cart (1); The conveying device (2) is detachably connected to the frame (11) and drives the material frame car (1) to move; The loading station (3) is equipped with an unlocking device (4) corresponding to the first hook (13) or the second hook (14) to release the lock between the first hook (13) and the second hook (14).

2. The material conveying system according to claim 1, characterized in that, The first hook (13) includes a first plate (131) extending forward of the frame (11), the end of the first plate (131) is provided with an upward first protrusion (132), and the front end of the first protrusion (132) is provided with a guide slope (133) whose height gradually increases from front to back; the second hook (14) includes a base (141) and a second plate (142), the base (141) is fixedly connected to the frame (11), and the second plate (142) extends backward of the frame (11); the second plate (142) is hinged to the base (141) so that the second plate (142) can rotate upward around the base (141); the end of the second plate (142) is provided with a downward second protrusion (143).

3. The material conveying system according to claim 2, characterized in that, The second plate (142) has a rotating part (144) at the bottom. The unlocking device (4) includes a first driving mechanism (41) and a lever (42). The first driving mechanism (41) can drive the lever (42) to push the rotating part (144) so ​​that the second plate (142) rotates upward.

4. The conveyor belt discharge system according to claim 3, characterized in that, The loading station (3) is equipped with an X-direction positioning mechanism (5) for positioning the material frame car (1) in the front and rear directions.

5. The material feeding and unloading system according to claim 4, characterized in that, The X-direction positioning mechanism (5) includes a second drive mechanism (51) and a first drive mechanism (41). Both the second drive mechanism (51) and the first drive mechanism (41) are provided with clamping arms (52) corresponding to the frame (11). The clamping arm (52) of the first drive mechanism (41) moves synchronously with the lever (42). When the clamping arms (52) of the first drive mechanism (41) and the second drive mechanism (51) clamp the frame (11), the lever (42) pushes the rotating part (144).

6. The material feeding and unloading system according to any one of claims 1 to 5, characterized in that, The bottom of the frame (11) is provided with a Y-direction positioning mechanism (6) for positioning the material frame car (1) in the left and right directions. The Y-direction positioning mechanism (6) includes two first vertical beams (61) arranged opposite to each other. The bottom of the first vertical beam (61) is provided with a first rotating wheel (62). The rotating axis of the first rotating wheel (62) is in the vertical direction. The loading station (3) is provided with a first slide rail (31) corresponding to the first rotating wheel (62). The side of the first slide rail (31) abuts against the first rotating wheel (62).

7. The material conveying system according to claim 6, characterized in that, The bottom of the frame (11) is provided with a Z-direction positioning mechanism (7) for positioning the material frame car (1) in the vertical direction. The Z-direction positioning mechanism (7) includes two second vertical beams (71) arranged opposite to each other. The bottom of the second vertical beam (71) is provided with a second rotating wheel (72). The rotating axis of the second rotating wheel (72) is in the left and right direction. The loading station (3) is provided with a second slide rail (32) corresponding to the second rotating wheel (72). The top surface of the second slide rail (32) abuts against the second rotating wheel (72).

8. The material feeding and unloading system according to claim 7, characterized in that, The loading station (3) is provided with a wheel (12) guide mechanism (8) corresponding to the wheel (12). The wheel (12) guide mechanism (8) includes two parallel positioning plates (81), and the ends of the two positioning plates (81) are far apart from each other in a figure-eight shape.

9. The material discharge system according to any one of claims 1 to 5, characterized in that, The frame (11) has a first docking block (15) at the front end and a second docking block (16) corresponding to the first docking block (15) at the rear end; the first docking block (15) and the second docking block (16) are provided with corresponding magnetic suction components.

10. The material discharge system according to any one of claims 1 to 5, characterized in that, The frame (11) has a traction plate (17) at the bottom, the traction plate (17) has a vertical traction hole (171), and the conveying device (2) has a lifting rod (21) corresponding to the traction hole (171).

11. The conveyor belt discharge system according to claim 10, characterized in that, The traction plate (17) is U-shaped, making the traction hole (171) a long strip notch; a seat (172) is provided on both sides of the end of the traction hole (171), and a pivot (173) perpendicular to the length direction of the traction hole (171) is provided between the two seats (172); an adjustment plate (174) is provided on the pivot (173), the adjustment plate (174) is located above the traction hole (171) and can rotate around the pivot (173); the adjustment plate (174) is normally horizontal and covers the traction hole (171).

12. The material discharge system according to any one of claims 1 to 5, characterized in that, The frame (11) is provided with a material frame identification part (18) on its side; And / or, the conveying device (2) is an AGV.

13. A method for discharging material with a conveyor belt, characterized in that, The material discharge system according to any one of claims 1 to 12, the material discharge method includes the following steps: A. After the material on the material frame car (1) on the loading station (3) is used up, the conveying device (2) drives the full material frame car (1) to the back of the empty material frame car (1), and makes the first hook (13) of the full material frame car (1) automatically hook and lock with the second hook (14) of the empty material frame car (1). B. The full material frame car (1) continues to move forward, pushing the empty material frame car (1) out of the loading station (3), and the full material frame car (1) is located at the loading station (3); the unlocking device (4) releases the lock between the first hook (13) and the second hook (14); C. The conveying device (2) is disengaged from the full material frame car (1) and connected to the empty material frame car (1), driving the empty material frame car (1) to move to the loading point and become a new full material frame car (1).

14. The material discharge method according to claim 13, characterized in that, In step B, after the full material frame car (1) is located at the loading station (3), the full material frame car (1) is positioned by the X-axis positioning mechanism, Y-axis positioning mechanism and Z-axis positioning mechanism on the loading station (3).

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