Intelligent suspension conveying device and working method thereof

Abstract

The application relates to the technical field of suspension conveying, and discloses an intelligent suspension conveying device and a working method thereof, which comprises a rack, a plurality of walking trolleys, two hanging rotary jigs and a buffer track assembly. Through the arrangement of the independent buffer track assembly, the matched blocking door and the triggering mechanism, the system can continuously run on the main conveying path and temporarily store the standby hanging rotary jigs in the buffer area. When a new rotary lifting appliance needs to be quickly connected to a certain station on the main line, the triggering mechanism can timely open the blocking door, stably guide the hanging rotary jigs in the buffer area into the main cycle, and realize the seamless relay of the lifting appliance. This effectively eliminates the beat interruption caused by the exchange and waiting of the lifting appliance in the traditional system, and guarantees the continuity and high-beat operation of the production process. The walking trolley and the hanging rotary jig are designed in a separated mode, the hanging rotary jig is slidably inserted into the sliding block of the walking trolley through the matching of the connecting guide rail and the sliding block, and the hanging rotary jig is convenient to flexibly move and load between the main track and the buffer track.

Description

Technical Field

[0001] This invention relates to the field of suspended conveying technology, and more specifically to an intelligent suspended conveying device and its working method. Background Technology

[0002] In industrial automation production, overhead conveyor systems are widely used in processes such as spraying, assembly, inspection, and sorting, especially suitable for scenarios involving continuous, efficient, and non-contact conveying of workpieces. Traditional overhead conveyor devices typically use fixed hangers running along tracks. The hangers themselves do not have a self-rotation function, or can only achieve intermittent rotation at specific workstations through external mechanisms. This makes it difficult to meet the high requirements of processes such as spraying, drying, and 360° inspection, which require workpieces to rotate at a constant speed throughout the entire process. For example, Chinese utility model patent CN215247474U discloses an "energy-saving and environmentally friendly electrostatic spraying overhead conveyor system," which discloses that the movement of a slider drives the movement of a telescopic rod, and the movement of a gear meshes with a toothed plate. The rotation of the gear drives the telescopic rod to rotate, thereby rotating the disc 5 and causing the workpiece 7 to rotate, resulting in a better spraying effect. However, when a workstation (such as the exit of the spray booth) needs to quickly connect a new rotating hanger to maintain continuous operation, there is often a waiting period because the previous hanger has not yet completely withdrawn, leading to interruptions in cycle time or a decrease in efficiency. More importantly, existing systems lack a mechanism to support the automatic handover of multiple continuously rotating spreaders between the main transport path and the bypass buffer area. Even with buffer tracks, traditional designs struggle to ensure that the spreaders in the buffer remain engaged with the main drive chain to maintain rotation, or to smoothly transition them into the main cycle at the appropriate time without interfering with other running spreaders. Summary of the Invention

[0003] To address the problems existing in the aforementioned technologies, the present invention provides an intelligent suspended conveying device to solve the problem that when a certain workstation needs to quickly connect a new rotating hoist to maintain continuous operation, there is often a waiting period due to the previous hoist not being completely withdrawn, resulting in interruption of cycle time or decreased efficiency.

[0004] The present invention provides an intelligent suspended conveying device, comprising a frame, multiple traveling trolleys, two suspended rotating frames and a buffer track assembly;

[0005] A circular track is fixed on the frame, and a first transmission chain and a second transmission chain are installed below the circular track.

[0006] Each trolley slides on a circular track and is hinged to the first drive chain;

[0007] Each traveling cart has a slider hinged to its bottom.

[0008] Each hanging swivel has a connecting guide rail and a main shaft at the bottom. A drive sprocket is sleeved on the main shaft, and the drive sprocket meshes with the second transmission chain. A hook is fixed at the bottom of the main shaft.

[0009] A buffer track assembly is set on the movement trajectory of the traveling trolley. The buffer track assembly is fixed to the circular track by a support frame. A barrier door is set at the downstream outlet of the buffer track assembly. The barrier door is connected to a trigger mechanism. The trigger mechanism can drive the barrier door to close or open the downstream outlet.

[0010] One of the hanging rotating frames has its connecting guide rail mounted on the buffer track assembly, while the connecting guide rails of the remaining hanging rotating frames are slidably inserted into the slider.

[0011] Preferably, four first reversing sprockets arranged in a rectangular pattern are rotatably mounted on the frame, and the first transmission chain is meshed and sleeved on the four first reversing sprockets;

[0012] A drive motor is also fixedly installed on the frame, and the output shaft of the drive motor is connected to any one of the first reversing sprockets.

[0013] Preferably, four rectangularly distributed second reversing sprockets are rotatably mounted on the frame, and the second transmission chain is meshed and sleeved on the four second reversing sprockets;

[0014] A linkage shaft is also mounted on the frame. One end of the linkage shaft is fixedly connected to a first reversing sprocket, and the other end is fixedly connected to a second reversing sprocket.

[0015] Preferably, the traveling trolley includes two suspension arms and a connecting crossbeam;

[0016] A guide groove is opened on both sides of the circular track along the length direction;

[0017] Two traveling wheels are rotatably mounted at both ends of the top of each suspension arm, and the traveling wheels on the two suspension arms are respectively rolled and embedded in two guide grooves;

[0018] The top of the connecting beam is hinged to the two suspension arms respectively, and the bottom of the connecting beam is fixedly connected to the slider.

[0019] Each cantilever arm is linked to the first drive train.

[0020] Preferably, multiple mounting holes are provided on both sides of the slider along its length. A reset spring is provided in each mounting hole. One end of the reset spring is fixed in the mounting hole, and a ball is fixed at the other end. The ball abuts against the inner wall side of the connecting guide rail.

[0021] Preferably, the buffer track assembly includes a left guide rail and a right guide rail disposed opposite to each other, with a passage gap formed between the left guide rail and the right guide rail for the traveling trolley and the main shaft to pass through;

[0022] A guide groove is provided on the inner sidewall of both the left and right guide rails, and the connecting guide rail can slide on the two guide grooves.

[0023] Preferably, the support frame includes two bent plates;

[0024] Two bent plates are located on both sides of the circular track. One end of each bent plate is fixedly connected to the left or right guide rail, and the other end is fixedly connected to the circular track.

[0025] Preferably, the triggering mechanism includes a swing arm and a trigger lever;

[0026] A pivot is rotatably mounted on the side wall of the buffer track assembly, and the middle part of the swing arm is fixed to the pivot;

[0027] The swing arm has a blocking end and a trigger end, with the blocking end located at the downstream outlet of the buffer track assembly to form a blocking gate.

[0028] A spring seat is also fixedly installed on the side wall of the buffer track assembly, and a tension spring is connected between the spring seat and the trigger end of the swing arm.

[0029] The trigger rod is fixed to the traveling trolley by a mounting plate, and a first guide slope is formed at the end of the trigger rod;

[0030] A toggle block is fixed at the trigger end of the swing arm, and a second guide slope is formed on the toggle block;

[0031] When the trolley moves downstream of the buffer track assembly, the first guide ramp of the trigger rod abuts against the second guide ramp of the toggle block, driving the swing arm to rotate.

[0032] The beneficial effects of the above scheme are as follows:

[0033] By setting up independent buffer track components and matching barrier doors and triggering mechanisms, the system can temporarily store spare rotating hoists in the buffer area while the main conveyor path continues to run. When a new rotating hoist needs to be quickly connected to a workstation on the main line, the triggering mechanism can promptly open the barrier door, smoothly guiding the rotating hoist in the buffer area into the main circulation, achieving "seamless relay" of the hoist. This effectively eliminates the cycle interruption caused by waiting for hoist exchanges in traditional systems, ensuring the continuity and high-cycle operation of the production process. The traveling trolley and the rotating hoist adopt a separate design. The rotating hoist is connected to the sliding block of the traveling trolley via a connecting guide rail, facilitating flexible transfer between the main track and the buffer track. The rotating hoist is continuously driven by a drive sprocket and a second transmission chain, maintaining uniform rotation of the workpiece whether running on the main track or temporarily stored on the buffer track. This meets the stability requirements of continuous workpiece rotation for processes such as spraying, drying, and 360° inspection, and is beneficial for improving coating uniformity, drying effect, or inspection accuracy. The spreader only enters the main circulation when necessary, reducing ineffective operating time and lowering system energy consumption. Meanwhile, the modular design makes the gantry easy to disassemble, maintain, or replace, contributing to the long-term stable operation of the system.

[0034] To address the problems existing in the aforementioned technologies, the present invention provides an intelligent suspended conveying device to solve the problem that when a certain workstation needs to quickly connect a new rotating hoist to maintain continuous operation, there is often a waiting period due to the previous hoist not being completely withdrawn, resulting in interruption of cycle time or decreased efficiency.

[0035] The present invention also provides a method for operating an intelligent suspended conveyor device, comprising the following steps:

[0036] S1. Preparation: Start the drive motor so that the first transmission chain drives the walking trolley to move step by step along the circular track, while the second transmission chain runs continuously to drive the hook of the hanging frame to rotate continuously.

[0037] At least one hanging gantry is stored on a buffer track assembly located in the spray booth;

[0038] S2. Alignment: The traveling trolley moves to the buffer track assembly, and the slider at its bottom aligns with the end of the connecting guide rail of a hanging rotating frame stored in the buffer track assembly.

[0039] S3. Triggering and Switching: The trigger lever on the traveling trolley triggers the barrier door mechanism to open the downstream outlet;

[0040] At the same time, the slider and the connecting guide rail slide and engage to complete the switching of the suspended rotating frame pulled by the traveling trolley;

[0041] The hooks of the suspended rotating frame, which remains in the spray booth, continue to rotate to perform the spraying operation;

[0042] S4. Sliding out and conveying: The suspended gantry that has completed the switching slides out from the buffer track assembly, is pulled by the traveling trolley along the circular track, leaves the spray booth, and its hook continues to rotate during the conveying process, entering the next process. Attached Figure Description

[0043] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0044] Figure 1 This is a three-dimensional structural schematic diagram of the first state of the present invention;

[0045] Figure 2 This is a front view structural schematic diagram of the present invention;

[0046] Figure 3 This is a three-dimensional structural schematic diagram of the second state of the present invention;

[0047] Figure 4 yes Figure 3 Enlarged structural diagram of region A in the middle;

[0048] Figure 5 yes Figure 4 A magnified structural diagram of region B in the middle;

[0049] Figure 6 This is a three-dimensional structural schematic diagram of the third state portion of the present invention;

[0050] Figure 7 This is a three-dimensional structural schematic diagram of the fourth state portion of the present invention;

[0051] Figure 8 yes Figure 7 A schematic diagram of the structure of region C in the middle.

[0052] Explanation of reference numerals in the attached figures

[0053] 1. Frame; 11. Circular track; 12. First drive chain; 13. Second drive chain; 14. First reversing sprocket; 15. Drive motor; 16. Second reversing sprocket; 17. Linkage shaft; 110. Guide groove;

[0054] 2. Traveling trolley; 21. Suspension arm; 22. Connecting crossbeam; 23. Traveling wheel; 24. Slider; 211. Mounting hole; 213. Ball bearing;

[0055] 3. Hanging frame; 31. Connecting guide rail; 32. Main shaft; 33. Drive sprocket; 34. Hook;

[0056] 4. Buffer track assembly; 41. Left guide rail; 411. Guide groove; 42. Right guide rail;

[0057] 5. Support frame; 51. Bending plate;

[0058] 6. Barrier door;

[0059] 7. Triggering mechanism; 71. Swing arm; 72. Trigger rod; 73. Pivot; 74. Spring seat; 75. Tension spring; 76. Mounting plate; 710. Actuating block. Detailed Implementation

[0060] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0061] Example:

[0062] Please see Figures 1 to 8 This embodiment provides an intelligent suspended conveying device and its working method, aiming to solve the problem of cycle interruption caused by waiting when switching lifting devices at specific workstations (such as the exit of a spray booth) in traditional suspended conveying systems, and to achieve continuous and uniform rotation of the lifting devices throughout the entire conveying process. Figure 1 and Figure 2 As shown, the intelligent suspended conveyor mainly includes a frame 1, a traveling trolley 2, a suspended rotating frame 3, and a buffer track assembly 4. The frame 1 constitutes the main support structure of the entire device. A circular track 11 is fixedly installed on the frame 1, defining the main conveying path. Below the circular track 11, a first transmission chain 12 and a second transmission chain 13 are arranged in parallel transmission. The first transmission chain 12 is used to drive the stepping movement of the traveling trolley 2, and the second transmission chain 13 is used to drive the continuous rotation of the suspended rotating frame 3. To achieve the circular transmission of the first transmission chain 12, four rectangularly distributed first reversing sprockets 14 are rotatably mounted on the frame 1, and the first transmission chain 12 is meshed with these four first reversing sprockets 14. A drive motor 15 is also fixedly installed on the frame 1, and the output shaft of the drive motor 15 is connected to one of the first reversing sprockets 14 through a coupling or other transmission components (not shown in the figure). Starting the drive motor 15 drives the first transmission chain 12 to rotate cyclically.

[0063] Similarly, to achieve the circular transmission of the second transmission chain 13, four rectangularly distributed second reversing sprockets 16 are rotatably mounted on the frame 1, with the second transmission chain 13 meshing and sleeved on them. Crucially, a linkage shaft 17 is also rotatably mounted on the frame 1. One end of this linkage shaft 17 is fixedly connected to a first reversing sprocket 14, and the other end is fixedly connected to a second reversing sprocket 16. Therefore, when the drive motor 15 drives the first transmission chain 12, it synchronously drives the second transmission chain 13 to operate continuously via the linkage shaft 17. This design ensures the synchronization of the rotational power source and the travel power source, and also results in a compact structure.

[0064] Multiple trolleys 2 are slidably mounted on a circular track 11. Specifically, as shown... Figure 4 and Figure 5 As shown, each traveling trolley 2 includes two suspension arms 21 and a connecting beam 22. The cross-section of the circular track 11 is approximately "I"-shaped, with a guide groove 110 on each of its two side walls along its length. Two traveling wheels 23 are rotatably mounted at both ends of the top of each suspension arm 21, and these wheels roll and embed themselves within the two guide grooves 110, thus suspending and constraining the traveling trolley 2 onto the circular track 11. The top of the connecting beam 22 is hinged to the lower ends of the two suspension arms 21, giving it a certain degree of sway adaptability. A slider 24 is fixedly connected to the bottom of the connecting beam 22. Each suspension arm 21 is connected to a link of the first transmission chain 12 via a hinge point. Therefore, when the first transmission chain 12 moves stepwise, it pulls all the traveling trolleys 2 forward along the circular track 11. Figures 3-6 As shown, the hanging frame 3 is the core component used to suspend and rotate the workpiece. In this embodiment, at least two hanging frames 3 are provided. A horizontal connecting guide rail 31 is fixedly installed at the top of each hanging frame 3. A vertical main shaft 32 is installed at the bottom of the hanging frame 3 via rotating components such as bearings. A drive sprocket 33 is fixedly sleeved on the main shaft 32, and this drive sprocket 33 is always engaged with the continuously rotating second transmission chain 13. A hook 34 for suspending the workpiece is fixedly installed at the bottom of the main shaft 32. Due to the continuous engagement of the drive sprocket 33 and the second transmission chain 13, regardless of the position of the hanging frame 3, its main shaft 32 and hook 34 will be driven by the second transmission chain 13 to rotate continuously at a uniform speed.

[0065] The buffer track assembly 4 is a key module for achieving seamless switching of the spreader. It is fixedly mounted on the circular track 11 via a support frame 5, and is located below the movement trajectory of the traveling trolley 2. Figure 1 , Figure 7As shown, the buffer track assembly 4 specifically includes a left guide rail 41 and a right guide rail 42 arranged relatively parallel to each other, forming a passage gap between them for the connecting crossbeam 22 of the traveling trolley 2 and the main shaft 32 of the hanging frame 3 to pass through. A guide groove 411 is provided on the inner sidewalls of the left guide rail 41 and the right guide rail 42. The two ends of the connecting guide rail 31 of a hanging frame 3 can be mounted and slid on these two guide grooves 411, allowing the hanging frame 3 to be independently and temporarily stored on the buffer track assembly 4. The support frame 5 includes two L-shaped bent plates 51, located on both sides of the annular track 11, one end fixed to the left guide rail 41 or the right guide rail 42, and the other end fixed to the annular track 11, ensuring the stability of the buffer track assembly 4. Figures 5-8 As shown, a barrier door 6 is provided at the downstream outlet of the buffer track assembly 4, and a trigger mechanism 7 is connected to the barrier door 6. The trigger mechanism 7 includes a swing arm 71 and a trigger rod 72. A pivot 73 is rotatably mounted on the side wall of the buffer track assembly 4, and the middle part of the swing arm 71 is fixed to the pivot 73. The swing arm 71 has a barrier end (not shown) and a trigger end (not shown). Its barrier end is located at the downstream outlet and can prevent the connecting guide rail 31 from sliding out, thus forming the barrier door 6. A spring seat 74 is also fixed on the side wall of the buffer track assembly 4. A tension spring 75 is connected between the spring seat 74 and the trigger end of the swing arm 71. Under normal conditions, the tension spring 75 keeps the barrier end of the swing arm 71 in a closed state. The trigger rod 72 is fixed to the traveling trolley 2 by a mounting plate 76, and its end is machined with a first guide slope. A toggle block 710 is fixed to the trigger end of the swing arm 71, and a second guide slope is formed on the toggle block 710.

[0066] The slider 24 at the bottom of the traveling trolley 2 is used to connect with the connecting guide rail 31 of the suspended rotating frame 3. For example... Figure 4 , Figure 5 As shown, multiple mounting holes 211 are provided on both sides of the slider 24 along its length. A return spring (not shown in the figure, but its direction of force can be inferred from the movement of the ball bearing 213) is installed in each mounting hole 211. One end of the return spring is fixed to the bottom of the hole, and the other end is fixed with a ball bearing 213. When the connecting guide rail 31 is inserted into the slider 24, the ball bearing 213 abuts against the inner wall of the connecting guide rail 31 under the action of the return spring, providing guidance and a certain elastic clamping force to ensure a smooth connection.

[0067] Working principle and process:

[0068] The working method of this intelligent suspended conveyor device specifically includes the following steps, combined with Figures 1 to 8 The states shown are explained as follows:

[0069] S1. Preparation (e.g.) Figure 1 , Figure 2(As shown): Start the drive motor 15. The first transmission chain 12 begins to move step by step under the drive of the drive motor 15, driving all the traveling trolleys 2 forward along the circular track 11. At the same time, through the transmission of the linkage shaft 17, the second transmission chain 13 begins to run continuously. All the drive sprockets 33 meshing with the second transmission chain 13 are driven, so that the hooks 34 of each hanging frame 3 continue to rotate. A spare hanging frame 3 is pre-stored on the buffer track assembly 4 set near the exit of the spray booth, and its connecting guide rail 31 is mounted in the guide chute 411. At this time, the drive sprocket 33 of the hanging frame 3 buffered on the assembly 4 is still meshed with the continuously running second transmission chain 13 below, so its hook 34 also continues to rotate during the buffering period. The barrier door 6 is closed under the action of the tension spring 75.

[0070] S2, Align (e.g.) Figure 3 , Figure 4 As shown): A trolley 2, which pulls the hanging frame 3 (denoted as the spreader A) to be sprayed, moves to the area of ​​the buffer track assembly 4. At this time, the slider 24 at the bottom of the trolley 2 is basically aligned vertically with the end of the connecting guide rail 31 of the spare hanging frame 3 (denoted as the spreader B) stored in the buffer track assembly 4.

[0071] S3, Triggering and Switching (e.g.) Figure 6 , Figure 7 , Figure 8 As shown): In the initial state, the barrier door 6 at the downstream outlet of the buffer track assembly 4 is in the closed position under the action of the tension spring 75, blocking the spare hanging frame B (slinger B) temporarily stored inside. At this time, the traveling trolley 2, which is pulling the previous hanging frame A (slinger A), is moving to the area of ​​the buffer track assembly 4.

[0072] S3.1: Switching of lifting gear (slider docking)

[0073] The traveling trolley 2 continues to advance along the circular track 11. Its bottom slider 24 moves with the trolley, first separating from the end of the connecting guide rail 31 of the currently towed spreader A. On the trajectory of the traveling trolley 2, the opening of slider 24 aligns with the beginning of the connecting guide rail 31 of spreader B, which is fixed in a fixed position by the barrier door 6. Under the inertia of the traveling trolley 2 and the guiding action of the ball bearings 213 inside slider 24, slider 24 smoothly "fits" into the connecting guide rail 31 of spreader B, completing the mechanical connection between the two. At this point, the power transmission target of the traveling trolley 2 has switched from spreader A to spreader B. The connecting guide rail 31 of spreader A is completely disengaged from slider 24. Because its drive sprocket 33 is still engaged with the second transmission chain 13, it remains in place and continues to rotate, continuing the spraying operation.

[0074] S3.2: Triggering of the barrier door and opening of the exit

[0075] As the traveling trolley 2 (now connected to the lifting device B) continues to move forward, the trigger rod 72, fixed to its body, advances synchronously to a position where it contacts the actuating block 710 at the trigger end of the swing arm 71. The first guide ramp at the end of the trigger rod 72 begins to contact the second guide ramp on the actuating block 710 and relative sliding occurs. Under the action of this ramp, the force of the forward movement of the trigger rod 72 is converted into a lateral thrust on the actuating block 710, driving the swing arm 71 to rotate about the pivot 73. This rotation overcomes the tension of the tension spring 75, causing the blocking end of the swing arm 71 (i.e., the blocking door 6) to lift upward, thereby opening the downstream outlet of the buffer track assembly 4.

[0076] S3.3: Preparation for the slide-out of the lifting gear

[0077] The opening of the barrier door 6 releases the last constraint on the spreader B, which is now integrated with the traveling trolley 2. At this point, the connecting guide rail 31 of the spreader B has been freed from the constraint of the guide groove 411 of the buffer track assembly 4, preparing it to enter the main conveying path with the traveling trolley 2.

[0078] S4, Sliding out and conveying (e.g.) Figure 1 , Figure 3 (Subsequent state shown): After the switch is completed, the spreader B is pulled by the traveling trolley 2, and its connecting guide rail 31 slides completely out of the guide groove 411 of the buffer track assembly 4, officially entering the main conveying cycle. The traveling trolley 2 pulls the new spreader B to continue moving along the circular track 11, leaving the spray booth area. Throughout the conveying process, the drive sprocket 33 of the spreader B is always engaged with the continuously operating second transmission chain 13, ensuring that its hook 34 and the suspended workpiece continue to rotate, are evenly heated, or enter subsequent inspection processes, until it reaches the next workstation that needs to be switched or unloaded.

[0079] All hanging sprockets 3, whether on the main conveyor path or in the buffer track assembly 4, are always engaged with the continuously operating second transmission chain 13. The hooks 34 and the hung workpieces maintain a constant rotation speed throughout the entire cycle. This effectively ensures the continuity and consistency of the 360° uniform processing of workpieces, such as spraying, drying, and inspection, avoiding uneven coating, blind spots in inspection, or heat treatment defects caused by rotation interruption. By setting up the buffer track assembly 4 and its matching barrier door 6 and trigger mechanism 7, the switching action of "unloading the current lifting device" and "connecting the backup lifting device" can be automatically completed without stopping the main conveyor process. During the stepping movement of the traveling trolley 2, the automatic docking / disconnection of the slider 24 with the connecting guide rail 31 and the linkage control of the barrier door 6 by the trigger rod 72 realize the smooth handover and instant replacement of the lifting devices, completely eliminating production line stoppages caused by waiting for the lifting devices to be in place, and significantly improving the overall cycle efficiency. When the main cycle needs to be connected, there is no need to start the rotating mechanism or wait for acceleration; the system can be immediately put into operation, shortening the changeover time and enhancing the system's adaptability to high-cycle, multi-batch production. A single linkage shaft 17 mechanically couples the first transmission chain 12 (walking drive) with the second transmission chain 13 (rotation drive), both driven synchronously by the same drive motor 15, ensuring a high degree of timing coordination between the stepping movement of the trolley 2 and the continuous rotation of the hanging frame 3. Simultaneously, the trolley 2 forms an elastic guiding connection with the connecting guide rail 31 through a ball bearing 213-reset spring structure, ensuring smooth docking while also providing a certain tolerance, thus improving the system's stability and anti-interference capabilities. At least two hanging frames 3 can be used alternately between "main conveying operation" and "buffer standby," forming a dynamic scheduling mode of "one in use, one on standby" or "multiple in use, one on standby." The buffer track assembly 4 automatically closes the outlet in the non-triggered state through the isolation door 6 and the tension spring 75 reset mechanism, preventing the spare lifting equipment from accidentally sliding out, ensuring that the lifting equipment in the buffer area is fixed and arranged in an orderly manner, avoiding collisions or interference, and improving the system safety and automation reliability.

[0080] Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. An intelligent suspended conveyor device, characterized in that, include: A frame (1) is fixed on the frame (1), and a first transmission chain (12) and a second transmission chain (13) are driven below the ring track (11). Multiple trolleys (2) are slidably mounted on the circular track (11) and hinged to the first transmission chain (12); Each of the walking carts (2) has a slider (24) hinged to its bottom end. At least two hanging frames (3), each of the hanging frames (3) has a connecting guide rail (31) and a main shaft (32) is mounted at the bottom end. A drive sprocket (33) is sleeved on the main shaft (32), and the drive sprocket (33) meshes with the second transmission chain (13). A hook (34) is fixed at the bottom end of the main shaft (32). A buffer track assembly (4) is set on the movement trajectory of the traveling trolley (2) and fixed to the circular track (11) by a support frame (5). A barrier door (6) is provided at the downstream outlet of the buffer track assembly (4). The barrier door (6) is connected to a trigger mechanism (7). The trigger mechanism (7) can drive the barrier door (6) to close or open the downstream outlet. One of the connecting rails (31) is mounted on the buffer rail assembly (4), and the remaining connecting rails (31) are slidably inserted into the slider (24).

2. The intelligent suspended conveyor device according to claim 1, characterized in that, Four first reversing sprockets (14) arranged in a rectangular pattern are rotatably mounted on the frame (1), and the first transmission chain (12) is meshed and sleeved on the four first reversing sprockets (14); A drive motor (15) is also fixedly installed on the frame (1), and the output shaft of the drive motor (15) is connected to any one of the first reversing sprockets (14) for transmission.

3. The intelligent suspended conveyor device according to claim 2, characterized in that, Four rectangularly distributed second reversing sprockets (16) are rotatably mounted on the frame (1), and the second transmission chain (13) is meshed and sleeved on the four second reversing sprockets (16); A linkage shaft (17) is also mounted on the frame (1). One end of the linkage shaft (17) is fixedly connected to a first reversing sprocket (14), and the other end is fixedly connected to a second reversing sprocket (16).

4. The intelligent suspended conveyor device according to claim 1, characterized in that, Each of the aforementioned walking trolleys (2) includes two suspension arms (21) and a connecting crossbeam (22); A guide groove (110) is provided on both sides of the annular track (11) along the length direction. Two traveling wheels (23) are rotatably provided at both ends of the top of each of the two suspension arms (21), and the traveling wheels (23) on the two suspension arms (21) are respectively rolled and embedded in the two guide grooves (110); The top of the connecting beam (22) is hinged to the two suspension arms (21) respectively, and the bottom of the connecting beam (22) is fixedly connected to the slider (24); Each of the suspension arms (21) is linked to the first drive chain (12).

5. The intelligent suspended conveyor device according to claim 1, characterized in that, The slider (24) has multiple mounting holes (211) on both sides along its length. A reset spring is provided in each mounting hole (211). One end of the reset spring is fixed in the mounting hole (211), and a ball (213) is fixed at the other end. The ball (213) abuts against the inner wall side of the connecting guide rail (31).

6. The intelligent suspended conveyor device according to claim 1, characterized in that, The buffer track assembly (4) includes a left guide rail (41) and a right guide rail (42) arranged opposite to each other, and a passage gap is formed between the left guide rail (41) and the right guide rail (42) for the traveling trolley (2) and the main shaft (32) to pass through; A guide groove (411) is provided on the inner sidewall of the left guide rail (41) and the right guide rail (42), and the connecting guide rail (31) can slide on the two guide grooves (411).

7. The intelligent suspended conveyor device according to claim 6, characterized in that, The support frame (5) includes two bent plates (51); The two bending plates (51) are located on both sides of the annular track (11). One end of each bending plate (51) is fixedly connected to the left guide rail (41) or the right guide rail (42), and the other end is fixedly connected to the annular track (11).

8. The intelligent suspended conveyor device according to claim 1, characterized in that, The triggering mechanism (7) includes a swing arm (71) and a trigger rod (72). A pivot (73) is rotatably mounted on the side wall of the buffer track assembly (4), and the middle part of the swing arm (71) is fixed on the pivot (73); The swing arm (71) has a blocking end and a trigger end, with the blocking end located at the downstream outlet of the buffer track assembly (4) to form the blocking door (6). A spring seat (74) is also fixedly installed on the side wall of the buffer track assembly (4), and a tension spring (75) is connected between the spring seat (74) and the trigger end of the swing arm (71). The trigger rod (72) is fixed to the traveling trolley (2) by a mounting plate (76), and a first guide slope is formed at the end of the trigger rod (72); A toggle block (710) is fixed at the trigger end of the swing arm (71), and a second guide slope is formed on the toggle block (710); When the trolley (2) moves on the buffer track assembly (4), the first guide slope of the trigger rod (72) abuts against the second guide slope of the toggle block (710) and drives the swing arm (71) to rotate.

9. A method of operating the intelligent suspended conveyor device as described in any one of claims 1-8, characterized in that, Includes the following steps: S1. Preparation: Start the drive motor (15) so that the first transmission chain (12) drives the walking trolley (2) to move step by step along the circular track (11), while the second transmission chain (13) runs continuously to drive the hook (34) of the hanging frame (3) to rotate continuously. At least one hanging rotisserie (3) is placed on the buffer track assembly (4) located in the spray booth; S2, Alignment: When the traveling trolley (2) moves on the buffer track assembly (4), the slider (24) at its bottom is aligned with the end of the connecting guide rail (31) of a hanging rotatable frame (3) stored in the buffer track assembly (4); S3, Triggering and Switching: The slider (24) and the connecting guide rail (31) are slidably connected to complete the switching of the hanging frame (3) pulled by the walking trolley (2); Furthermore, the trigger rod (72) on the traveling trolley (2) triggers the barrier door (6) mechanism to open the downstream outlet; The hook (34) of the hanging rotating frame (3) that remains in the spray booth continues to rotate and spraying operation is carried out; S4. Sliding out and conveying: The suspended gantry (3) that has completed the switching slides out from the buffer track assembly (4), is pulled by the traveling trolley (2) along the circular track (11), leaves the spray booth, and its hook (34) continues to rotate during the conveying process, entering the next process.

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