Intelligent hanging accumulation and storage device

Abstract

The application discloses a kind of intelligent suspension accumulation and storage equipment, comprising: accumulation and storage line main body, vertical line-changing elevator and material trolley, mobile trolley and accumulation and storage line track are contained in the accumulation and storage line main body, front end traction walking wheel and rear end pushing walking wheel are respectively independently rotated and installed on the upper surface of mobile trolley, front end traction walking wheel and rear end pushing walking wheel are same in structure and are respectively independently powered, and are uniformly controlled by remote signal control system.The front end traction walking wheel and rear end pushing walking wheel that are independently powered and are uniformly controlled by remote signal control system are respectively arranged in front and back of the mobile trolley.In conventional walking, it is pulled by front end wheel, and it is pushed by rear end wheel when changing track or in no electricity area, so as to ensure that the trolley can still pass smoothly in power-off area or track switching section, and avoid the problems of easy wear and tear and difficult stopping of traditional chain traction structure.

Description

Technical Field

[0001] This invention relates to the field of automated conveying equipment technology, specifically to an intelligent suspended accumulation buffer device. Background Technology

[0002] With the continuous improvement of industrial automation, overhead conveyor lines are increasingly widely used in painting, assembly, warehousing and other fields. Traditional overhead conveyor lines mostly adopt a single-layer structure, which has a low space utilization rate; while existing double-layer or multi-layer accumulation lines have improved space utilization efficiency to a certain extent, they often rely on complex robotic arms or auxiliary equipment during the inter-layer transfer process, resulting in low layer transfer efficiency and high equipment costs.

[0003] Furthermore, existing accumulation lines generally use a multi-chain structure to traction the moving trolley, which is prone to chain wear, and the trolley's stopping relies on an external unhooking mechanism, resulting in a bulky overall equipment structure and high maintenance costs. More importantly, the existing system lacks an effective dual-station synchronous pick-and-place function, making it difficult to meet the production requirements of high cycle time and high stability. At the same time, the problem of continuous power supply and smooth transition of the moving trolley in areas of track change or power outage has not been effectively solved.

[0004] Therefore, we propose an intelligent suspended accumulation cache device to address the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent suspended accumulation buffer device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an intelligent suspended accumulation buffer device, comprising: an accumulation line body, a vertical line changing elevator, and a material trolley, wherein the accumulation line body includes a mobile trolley and an accumulation line track; The mobile trolley has a front traction wheel and a rear push wheel independently installed at the front and rear ends of its upper surface, respectively. The front-end traction wheel and the rear-end push wheel have the same structure and are powered independently, and are controlled by a remote signal control system. The front-end traction wheels are used to move the trolley on the conventional track section. The rear-end drive wheels are used to propel the mobile trolley when switching tracks or on track sections without power supply.

[0007] Preferably, the front traction wheel and the rear push wheel each include a rotating platform, a servo motor fixed on the rotating platform, and a traction wheel driven by the servo motor. The traction wheel is in frictional rolling connection with the traction guide rail on the inner wall of the accumulation line track.

[0008] Preferably, the rotating platform is also equipped with a power receiving arm, and a corresponding power receiving rail is provided on the accumulating line track. The power receiving arm is electrically connected to the power receiving rail to supply power to the servo motor.

[0009] Preferably, the receiving arm includes a rotating lifting arm and conductive rollers. The rotating lifting arm is rotatably connected to the rotating platform via a rotating shaft, and a torsion spring is provided at the connection point so that the conductive rollers elastically contact the power receiving track.

[0010] Preferably, a hook is fixedly installed on the lower surface of the mobile trolley for suspending the material trolley; A track-changing guide shaft is fixedly installed on the lower surface of the end of the mobile trolley for guiding track switching.

[0011] Preferably, the vertical line changing elevator includes a lifting platform and a dual-station pick-and-place structure set on the lifting platform. The dual-station pick-and-place structure includes two symmetrically arranged trolley hooks, which can pick up and place two material trolleys at the same time.

[0012] Preferably, an electromagnet is installed on the hook head of the trolley loading hook to attract the hanging ring of the material trolley and prevent it from coming off the hook.

[0013] Preferably, the main body of the accumulation line is stacked in several layers in the vertical direction, and the vertical line changing elevator is set on the side of the main body of the accumulation line to send the material trolley into the main body of the accumulation line at different layers.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The mobile trolley is equipped with independently powered front traction wheels and rear drive wheels, both controlled by a remote signal control system. During normal travel, the front wheels provide traction, while the rear wheels drive the trolley in areas with track changes or no power. This ensures the trolley can pass smoothly through power-off zones or track switching sections, avoiding the problems of easy wear and difficulty in stopping traditional chain-driven structures. 2. Through the elastic contact design between the power receiving arm and the power receiving track, combined with the torsion spring mechanism, the mobile trolley can be continuously powered during its movement. Even if there is a brief power outage at the track change point, the rear push wheel can complete the transition, which significantly improves the power supply reliability of the system and the flexibility of the track layout. 3. The vertical transfer elevator, combined with a dual-station pick-and-place structure, enables simultaneous material picking and placing at a single station, or material replacement, significantly improving inter-station transfer efficiency. The dual-station structure, coupled with electromagnet attraction, ensures the material trolley is not easily disengaged during lifting, adapting to high-cycle production demands. 4. The traditional chain drive structure is eliminated, and an independent power supply wheel set and linear module drive method are adopted, which simplifies the mechanical structure, reduces the failure rate and maintenance cost, and improves the intelligence and scalability of the system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the vertical line-changing elevator in this invention; Figure 3 This is a schematic diagram of the lifting platform, dual-station pick-and-place structure, and linear module in this invention; Figure 4 This is a schematic diagram of the dual-station pick-and-place structure and the linear module in this invention; Figure 5 This is a schematic diagram of the rotating lifting ring and the fixed hanging bracket in this invention; Figure 6 This is a schematic diagram of the structure of the mobile vehicle in this invention; Figure 7 In this invention Figure 6 Enlarged view of point A; Figure 8 This is a side view of the accumulation line track and the moving trolley in this invention; Figure 9 This is a cross-sectional schematic diagram of the conventional path of the accumulation line track in this invention; Figure 10 This is a schematic cross-sectional view of the track change point of the accumulation line in this invention.

[0016] In the diagram: 1. Accumulation line main body; 11. Moving trolley; 111. Guide shaft for track changing; 12. Load-bearing traveling wheel; 13. Front traction traveling wheel; 131. Rotating platform; 132. Servo motor; 133. Traction wheel; 134. Electric receiving arm; 1341. Rotating shaft; 1342. Rotating lifting arm; 1343. Conductive roller; 1344. Torsion spring; 14. Rear push traveling wheel; 15. Hook; 16. Accumulation line track; 161. Load-bearing guide rail; 162. Traction guide rail; 163. Insulation groove; 1631. Electric connection rail. 2. Vertical line changing lift; 21. Support frame rail; 22. Servo power system; 23. Conveyor belt; 24. Lifting platform; 25. Dual-station pick-and-place structure; 251. Rotating hanger; 252. Trolley hook; 2521. Hook head; 2522. Electromagnet; 253. Rotating lifting ring; 254. Fixed hanger; 2541. Roller; 2542. Lifting rod; 255. Servo geared motor; 256. Linear moving platform; 26. Linear module; 261. Linear cylinder; 262. Linear rail; 3. Material trolley. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1 This invention provides a technical solution: an intelligent suspended accumulation buffer device, comprising: an accumulation line body 1, a vertical line changing elevator 2, and a material trolley 3. The accumulation line body 1 is stacked in several layers in the vertical direction. The material trolley 3 is transported by the accumulation line body 1 to a designated area. The vertical line changing elevator 2 is set on the side of the accumulation line body 1. The vertical line changing elevator 2 is used to grab the material trolley 3 and lift it vertically, sending it into the accumulation line body 1 at different layers, realizing the loading and unloading of the material trolley 3 and the changing of layers.

[0019] like Figure 2 and Figure 3 As shown, the vertical line changing lift 2 includes a support frame rail 21, a servo power system 22 is installed at the upper end of the support frame rail 21, and a pair of movable conveyor belts 23 are also installed on the support frame rail 21. The servo power system 22 drives the transmission rollers connected to the conveyor belts 23. A lifting platform 24 is slidably installed on the support frame rail 21. The lifting platform 24 is fixedly connected to the conveyor belts 23. A linear module 26 is installed on the lifting platform 24. The linear module 26 is linearly driven to connect to the dual-station pick-and-place structure 25. The servo power system 22 drives the lifting platform 24 to rise and fall vertically along the support frame track 21, thereby driving the dual-station pick-and-place structure 25 to rise and fall. The dual-station pick-and-place structure 25 is used to grab the material trolley 3.

[0020] Furthermore, such as Figure 4 and Figure 5 As shown, two sets of linear modules 26 are symmetrically arranged. Each set includes a linear cylinder 261 and a linear track 262. The linear cylinder 261 and the linear track 262 are fixedly installed on the lifting platform 24. The dual-station pick-and-place structure 25 includes a linear moving platform 256, which is slidably connected to a linear track 262 and fixedly connected to the telescopic end of a linear cylinder 261. The linear moving platform 256 is driven by the linear cylinder 261 to move linearly along the linear track 262, and the trolley hook 252 of the dual-station pick-and-place structure 25 is used to take out the material trolley 3 or put it back into the main body of the accumulation line 1. A fixed gantry 254 is hoisted at the lower end of the linear moving platform 256. The fixed gantry 254 rotates to hoist a rotating ring 253. The rotating ring 253 fixes the rotating gantry 251. The rotating gantry 251 symmetrically fixes the trolley hooks 252. A servo geared motor 255 is also installed on the linear moving platform 256. The output end of the servo geared motor 255 is connected to the rotating gantry 251. The servo geared motor 255 drives the rotating gantry 251 to rotate relative to the fixed gantry 254, thereby causing the two symmetrical trolley hooks 252 to alternately face the accumulation line body 1. This allows for the simultaneous picking and placing of two material trolleys 3, or the replacement of material trolleys 3 at designated positions, increasing flexibility. In addition, the trolley hook 252 includes a hook head 2521, on which an electromagnet 2522 is installed. The electromagnet 2522 is energized by the upper control system to attract the iron piece at the hanging ring of the material trolley 3, thereby increasing the contact stability between the trolley hook 252 and the material trolley 3 and preventing the material trolley 3 from detaching from the trolley hook 252. To increase the axial stability between the rotating ring 253 and the fixed hanger 254, in this embodiment, a convex rail extends from the upper surface of the rotating ring 253 toward the center, and several hanger rods 2542 are fixed to the side of the fixed hanger 254. Rollers 2541 are rotatably installed at the lower end of the hanger rods 2542. The rollers 2541 are in rolling connection with the convex rail on the upper surface of the rotating ring 253. The axial positioning of the rotating ring 253 is limited by the action of the rollers 2541 and the hanger rods 2542. At the same time, an inner support bracket (not shown in the figure) is provided inside the rotating ring 253, and the inner support bracket is fixedly connected to the output end of the servo reduction motor 255.

[0021] like Figures 6 to 9 As shown, the main body 1 of the accumulation line includes a mobile trolley 11 and an accumulation line track 16. The mobile trolley 11 travels along the accumulation line track 16, and the material trolley 3 is transported on the mobile trolley 11 via a hook 15. Two sets of rotatable load-bearing wheels 12 are provided in the middle of the upper surface of the mobile trolley 11. The load-bearing wheels 12 are fixedly connected to the load-bearing guide rails 161 on the inner wall of the accumulation line track 16, and are mainly used for the load-bearing of the mobile trolley 11. The front traction wheel 13 and the rear push wheel 14 are rotatably mounted on the front and rear ends of the upper surface of the mobile trolley 11, respectively. The two have the same structure and are powered independently. They are controlled by a remote signal control system. The front traction wheel 13 is used for the normal traction of the mobile trolley 11, and the rear push wheel 14 is used to push the mobile trolley 11 to move when switching tracks. The hook 15 is fixedly installed on the lower surface of the mobile trolley 11. The hook 15 is used to suspend the material trolley 3. A track-changing guide shaft 111 is fixedly installed on the lower surface of the end of the mobile trolley 11 in the direction of travel. The track-changing guide shaft 111 is used to push and guide the track-changing structure to realize the track switching of the mobile trolley 11. The front-end traction wheel 13 includes a rotating platform 131 with a rotating configuration. A servo motor 132, a circuit board, and a remote signal control structure are fixedly mounted on the rotating platform 131. A traction wheel 133 is mounted on the output end of the servo motor 132. The traction wheel 133 is in frictional rolling connection with the traction guide rail 162 on the inner wall of the accumulation line track 16. The servo motor 132 drives the traction wheel 133 to rotate. The frictional rolling cooperation between the traction wheel 133 and the traction guide rail 162 enables the movement of the mobile trolley 11. When turning or changing tracks, the rotating platform 131 can rotate. In other embodiments, the servo motor 132 can be a deceleration motor or a hub motor. A power receiving arm 134 is also installed on the rotating platform 131, and a corresponding power receiving rail 1631 is set on the accumulating line rail 16. The power receiving arm 134 is electrically connected to the power receiving rail 1631, and a circuit is set on the power receiving arm 134. The other end of the circuit is electrically connected to the circuit board on the rotating platform 131, and a power transformer is set between the circuit and the circuit board. By making contact with the power receiving arm 134 and the power receiving rail 1631, the mobile trolley 11 is kept in a powered state during movement to supply power to the servo motor 132.

[0022] Furthermore, two sets of electric receiving arms 134 are symmetrically arranged. Each electric receiving arm 134 includes a rotating lifting arm 1342. One end of the rotating lifting arm 1342 is rotatably connected to a conductive roller 1343. The shaft of the conductive roller 1343 is connected to a circuit. The circuit extends along the rotating lifting arm 1342 to the rotating platform 131. The other end of the rotating lifting arm 1342 is fixedly connected to a rotating shaft 1341. The rotating shaft 1341 is rotatably connected to the side of the rotating platform 131, and a torsion spring 1344 is provided at the connection point. Correspondingly, the interlayer of both walls of the accumulation line track 16 is provided with an insulating groove 163. The insulating groove 163 opens downwards, and the top of the inner wall of the insulating groove 163 is fixedly provided with a power-connecting track 1631. The conductive roller 1343 rolls and connects to the power-connecting track 1631. The torsion spring 1344 makes the rotating lifting arm 1342 elastically contact the power-connecting track 1631 to maintain the stability of the power connection.

[0023] like Figure 9 and Figure 10 As shown, it is worth noting that the accumulation line track 16 is designed without an insulating groove 163 and a power-connected track 1631 at the track switching point, which ensures that the power receiving arm 134 can smoothly enter and exit the two intermittent accumulation line tracks 16. When the front traction wheel 13 moves to the unconnected track 1631, the rear push wheel 14 runs until the front traction wheel 13 enters the next section of the power-connected track 1631 and is reconnected to power, and then the rear push wheel 14 stops running.

[0024] Working principle: Horizontal conveying: The material trolley 3 is suspended below the moving trolley 11 of the accumulation line body 1 via hooks 15. The moving trolley 11 is connected to the guide rail 162 on the inner wall of the accumulation line track 16 via frictional rolling through the front traction wheels 13, and moves along the track under the drive of the servo motor 132. The conductive rollers 1343 on the power receiving arm 134 are in contact with the power receiving rail 1631, providing continuous power to the moving trolley 11.

[0025] Track changing and power failure resumption: When the mobile trolley 11 reaches the track changing point (the area of ​​the unpowered track 1631), the front traction wheel 13 is de-energized. At this time, the rear drive wheel 14 starts and pushes the mobile trolley 11 through the power failure area until the front traction wheel 13 enters the next section of the powered track 1631 and is re-energized. Then the rear drive wheel 14 stops.

[0026] Vertical Layer Change: When the material trolley 3 needs to change layers, the vertical line changing elevator 2 is activated. The servo power system 22 drives the lifting platform 24 to rise or fall vertically along the support frame track 21.

[0027] Dual-station pick-and-place: After the lifting platform 24 reaches the designated height, the linear module 26 drives the dual-station pick-and-place structure 25 to move horizontally. The servo geared motor 255 drives the rotating hanger 251 to rotate, aligning the trolley hook 252 with the material trolley 3. The electromagnet 2522 is energized to attract the hanging ring of the material trolley 3, thus achieving gripping. The dual-station design allows one hook to pick up material while the other hook releases material, or for material replacement.

[0028] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intelligent suspended accumulation buffer device, comprising: The main body of the accumulation and dispensing line (1), the vertical line changing elevator (2), and the material trolley (3) are characterized in that: The main body (1) of the accumulation line includes a mobile trolley (11) and an accumulation line track (16). The mobile trolley (11) has a front traction wheel (13) and a rear push wheel (14) that are independently rotatable on the front and rear ends of its upper surface. The front traction wheel (13) and the rear push wheel (14) have the same structure and are powered independently, and are controlled by a remote signal control system. The front-end traction wheel (13) is used for the traction of the mobile trolley (11) on the conventional track section; The rear-end drive wheel (14) is used to drive the mobile trolley (11) when the track section is not powered; The lower surface of the mobile trolley (11) is fixedly equipped with a hook (15) for suspending the material trolley (3). A guide shaft (111) is fixedly installed on the lower surface of the end of the mobile trolley (11). The vertical line changing elevator (2) includes a lifting platform (24) and a dual-position pick-and-place structure (25) set on the lifting platform (24). The dual-position pick-and-place structure (25) includes two symmetrically arranged trolley hooks (252), which can pick up and place two material trolleys (3) at the same time. The main body of the accumulation line (1) is stacked in several layers in the vertical direction. The vertical line changing elevator (2) is set on the side of the main body of the accumulation line (1) and is used to send the material trolley (3) into the main body of the accumulation line (1) of different layers.

2. The intelligent suspended accumulation buffer device according to claim 1, characterized in that, The front traction wheel (13) and the rear push wheel (14) each include a rotating platform (131), a servo motor (132) fixed on the rotating platform (131), and a traction wheel (133) driven by the servo motor (132). The traction wheel (133) is in frictional rolling connection with the traction guide rail (162) on the inner wall of the accumulation line track (16).

3. The intelligent suspended accumulation buffer device according to claim 2, characterized in that, The rotating platform (131) is also equipped with a power receiving arm (134), and the accumulating line track (16) is correspondingly provided with a power receiving track (1631). The power receiving arm (134) is electrically connected to the power receiving track (1631) to supply power to the servo motor (132).

4. The intelligent suspended accumulation buffer device according to claim 3, characterized in that, The receiving arm (134) includes a rotating lifting arm (1342) and a conductive roller (1343). The rotating lifting arm (1342) is rotatably connected to the rotating platform (131) via a rotating shaft (1341), and a torsion spring (1344) is provided at the connection point so that the conductive roller (1343) elastically contacts the power receiving track (1631).

5. The intelligent suspended accumulation buffer device according to claim 1, characterized in that, An electromagnet (2522) is installed on the hook head (2521) of the trolley hook (252) to adsorb the hanging ring of the material trolley (3) and prevent it from coming off the hook.

Images