Sponge block conveyor trolley with rotary lift

Abstract

The utility model discloses a kind of sponge block conveying turnover trolley with rotary lifting, it is related to material conveying technical field.The trolley includes mobile platform chassis assembly, lifting assembly, lifting frame assembly and conveying platform assembly.The conveying platform assembly is rotatably installed in the front end of the lifting frame assembly by rotary drive mechanism, and the lifting frame assembly is driven lifting by the lifting assembly.The utility model integrates rotation function in lifting execution terminal, realizes the independent, flexible adjustment of material height and horizontal angle, solves the problem of difficult alignment and low efficiency in the multi-process turnover of sponge block and the like.The lifting assembly adopts the collaborative design of gantry, chain counterweight and U-shaped groove guidance, ensuring the stability when lifting with cantilever rotary load.The utility model is compact in structure, reliable in operation, and is particularly suitable for the automatic flexible conveying of light blocky materials.

Description

Technical Field

[0001] This utility model relates to the field of material conveying equipment technology, specifically to a conveying trolley for efficient and flexible turnover of sponge blocks or other lightweight, easily deformable block materials in a factory, and in particular a special turnover device that combines track movement, vertical lifting and horizontal rotation functions. Background Technology

[0002] In the production processes of industries such as automotive seats, furniture, and packaging, foam blocks, as a key cushioning material, require frequent turnover between multiple processes including molding, cutting, lamination, and assembly. Currently, common turnover methods mainly include: Manual handling: inefficient, labor-intensive, and prone to deformation or damage to large sponge blocks due to improper handling.

[0003] General-purpose flatbed trucks or forklifts can only move horizontally and cannot be directly connected to workstations of different heights. They still require manual assistance for height adjustment or steering, resulting in low automation.

[0004] Fixed lifting or rotating tables: have limited functionality, lack mobility, and cannot be flexibly moved around in the production line.

[0005] Existing technologies include some material handling equipment with lifting or rotating functions (such as hydraulic lifting platform trucks, rotary worktable AGVs, etc.), but they generally have the following shortcomings: Low functional integration: The lifting and rotating functions are mostly independent modules, and there is no integrated design for the specific requirement of "synchronously adjusting the horizontal angle during vertical movement", resulting in poor space utilization and operational continuity.

[0006] Poor structural adaptability: Most designs are generic and not optimized for the characteristics of sponge blocks, such as being lightweight, large, and susceptible to compression. For example, the lifting mechanism may be too rigid, easily damaging the material, or its instability may cause swaying when under high load.

[0007] High cost and complexity: Although some high-degree-of-freedom industrial robots or precision positioning platforms can perform complex movements, they are expensive, complex, and difficult to maintain, making them unsuitable as material handling equipment for large-volume, medium-precision applications.

[0008] Therefore, there is an urgent need for a specialized conveying trolley that is compact in structure, stable in operation, flexible in operation, and cost-effective, in order to solve the technical problem of efficient and damage-free turnover of sponge blocks between multiple processes. Utility Model Content

[0009] This utility model aims to overcome the shortcomings of the prior art and provide a rotating and lifting sponge block conveying and turnover trolley to solve the problem of frequent height and angle adjustments required for sponge blocks during process turnover. It realizes a combined lifting and rotating action, improves turnover efficiency, protects the integrity of materials, and ensures stable and reliable equipment operation.

[0010] To achieve the above objectives, the present invention adopts the following technical solution: A rotating and lifting sponge block conveying and turnover trolley includes: Mobile platform chassis assembly for moving on a preset track; The lifting component is fixedly installed on the mobile platform base frame assembly and is used to provide lifting power; A lifting frame assembly is connected to the power output end of the lifting assembly and is driven by the lifting assembly to perform vertical lifting and lowering movements; and The conveying platform assembly is rotatably mounted at the front end of the lifting frame assembly via a rotary drive mechanism and is used to carry the sponge block; the rotary drive mechanism can drive the conveying platform assembly to rotate horizontally about a vertical axis.

[0011] Furthermore, the lifting assembly includes a gantry frame, a drive motor, a rotating shaft, a chain, a sprocket, and a counterweight. The gantry frame is fixedly mounted on the mobile platform base frame assembly, and the rotating shaft is rotatably mounted on its top; the drive motor is mounted on the gantry frame, and its output end is connected to the rotating shaft for driving; the sprocket is fixedly mounted on the rotating shaft. One end of the chain is connected to the lifting frame assembly, and the other end passes around the sprocket and is connected to the counterweight block to form a counterweight balance system; the counterweight block is housed in the triangular frame structure space formed by the gantry frame and the side columns fixedly connected to it.

[0012] Furthermore, the inner side of the gantry frame is provided with a vertical U-shaped track groove; guide wheels are installed on both sides of the lifting frame assembly, the guide wheels are embedded in the U-shaped track groove and roll along it, providing guidance for the lifting and lowering of the lifting frame assembly.

[0013] Furthermore, the rotary drive mechanism includes a slewing bearing, a rotary motor, and a drive gear; the outer ring of the slewing bearing is fixed to the front end of the lifting frame assembly, and the inner ring is fixedly connected to the conveying platform assembly; the rotary motor is mounted on the lifting frame assembly, and the drive gear on its output shaft meshes with the internal meshing gear of the inner ring of the slewing bearing.

[0014] Furthermore, the platform surface of the conveying platform assembly is grid-shaped or has multiple rollers to reduce friction with the bottom surface of the sponge block.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. Integrated Functions and Flexible Operation: By directly integrating the rotatable conveyor platform into the end of the lifting frame, seamless connection and independent control of lifting and rotation movements are achieved. The height and horizontal orientation of the sponge block can be adjusted arbitrarily in a single positioning operation, improving the flexibility and efficiency of docking with different workstations, making it suitable for space-constrained assembly line environments.

[0016] 2. Stable operation, protecting materials: Rigidity and Stability System: A high-rigidity foundation is provided through the "gantry-triangular frame". The "built-in counterweight" effectively balances the eccentric torque of the front conveyor platform and load, significantly reducing the load on the lifting drive motor and making the lifting process smoother and more energy-efficient. The tight fit of the "U-shaped track groove and guide wheels" provides precise vertical guidance, effectively suppressing lateral swaying or jamming that may occur when the lifting frame is under load, especially when a rotating platform is installed at the front. In particular, the front end of the lifting base frame adopts a circular frame design, which not only facilitates the installation and positioning of the slewing bearing, but its ring structure also enhances the overall stability at that point.

[0017] Reasonable force transmission path: The conveyor platform assembly is connected to the slewing bearing via a central connecting frame. This connecting frame adopts a truss structure with frame, horizontal braces, diagonal braces, and vertical supports, which can effectively transfer the load of the conveyor platform when receiving materials to the slewing bearing. The load is then supported and balanced by the lifting base frame, gantry frame, and counterweight system, ensuring good structural stability of the conveyor platform during stationary, lifting, and rotation processes, and effectively offsetting the problem of force eccentricity.

[0018] 3. Gentle Contact and Smooth Transition: The platform surface of the conveyor assembly is composed of multiple conveyor belts forming a grid, or may be equipped with rollers, significantly reducing the contact area and frictional resistance with the bottom surface of the sponge block, thus preventing scratches or stretching deformation of the sponge surface during handling. Furthermore, the transition platform installed at the front end of the conveyor platform has guide rollers that fill the gap between it and the adjacent fixed platform, achieving smooth, jam-free conveying of the sponge block.

[0019] 4. Compact structure and controllable cost: All drive and transmission components are integrated inside or near the gantry frame, with a reasonable layout and small footprint. Mature mechanical transmission components (chains, slewing bearings) are used, effectively controlling manufacturing costs and maintenance complexity while ensuring performance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the turnover trolley of this utility model.

[0021] Figure 2 This is a top view of the overall structure of the turnover trolley of this utility model.

[0022] Figure 3 This is a partially enlarged schematic diagram of the lifting component of this utility model.

[0023] Figure 4 This is a three-dimensional schematic diagram of the lifting frame assembly of this utility model.

[0024] Figure 5 This is a schematic diagram of the lifting frame assembly of this utility model from another angle.

[0025] Figure 6 This is a bottom view of the conveyor platform component of this utility model.

[0026] Figure 7 This is a schematic diagram of the connecting frame of this utility model.

[0027] In the diagram: 1. Mobile platform base frame assembly; 11. Track wheels; 2. Lifting assembly; 21. Gantry frame; 210. U-shaped track groove; 23. Connecting support; 24. Side column; 25. Drive motor; 26. Rotating shaft; 27. Sprocket; 28. Counterweight; 29. ​​Chain; 3. Lifting frame assembly; 31. Lifting base frame; 311. Side frame; 312. Rear cross frame; 313. Front round frame; 32. Vertical frame; 33. Guide... 34. Wheel; 35. Slewing bearing; 36. Rotary motor; 37. Drive gear; 48. Conveyor platform assembly; 49. Rectangular frame; 40. Conveyor motor; 41. Conveyor belt; 42. Shaft; 43. Pulley; 44. Crossbeam; 5. Track; 65. Connecting frame; 66. Frame; 67. Horizontal brace; 68. Disc connector; 69. Diagonal brace; 60. Vertical support; 71. Transition platform; 72. Guide roller; 73. Support. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, but the scope of protection of the present invention is not limited to the embodiments described. Example

[0029] refer to Figures 1 to 7 A rotating and lifting sponge block conveying and turnover trolley includes a mobile platform base frame assembly 1, a lifting assembly 2, a lifting frame assembly 3, and a conveying platform assembly 4.

[0030] The bottom of the mobile platform base frame assembly 1 is equipped with track wheels and a drive motor, enabling it to move automatically on the preset track 5 on the workshop floor.

[0031] The lifting assembly 2 is bolted to the mobile platform base frame assembly 1. Its gantry frame 21 is welded from structural steel, and its two sides are connected to sturdy side columns 24 via connecting supports 23, forming a stable triangular frame. A drive motor 25 is mounted on the top side of the gantry frame 21, driving the rotating shaft 26 to rotate via a coupling. Two sprockets 27 are fixed on the rotating shaft 26. A counterweight 28, made of steel plate, is suspended inside the triangular frame by a chain 29. One end of the chain 29 is connected to the lifting frame assembly 3, and the other end passes around the sprockets 27 and connects to the counterweight 28.

[0032] Vertical frames 32 are welded to both sides of the rear end of the lifting base frame 31 of the lifting frame assembly 3. A guide wheel 33 is installed at the upper and lower ends of each vertical frame 32. A U-shaped steel section matching the guide wheel 33 is welded to the inner side of the gantry frame 21 as a track groove 210. The guide wheel 33 is embedded in the track groove 210, ensuring that the lifting frame assembly 3 can only move smoothly in the vertical direction. The lifting base frame 31 includes two side frames 311, a rear horizontal frame 312, and a front circular frame 313. The two ends of the rear horizontal frame 312 are respectively connected to one end of the two side frames 311, and the other ends of the two side frames 311 are respectively connected to the two sides of the front circular frame 313. The two vertical frames 32 are respectively connected above the two ends of the rear horizontal frame 312. The front end of the lifting base frame 31 is designed as a front circular frame 313. This circular structure facilitates the installation and alignment of the slewing bearing 34, while its annular closed shape enhances the local rigidity and overall stability when bearing rotational loads.

[0033] A slewing bearing 34 is bolted to the upper front surface of the lifting base frame 31, and the outer ring of the slewing bearing 34 is bolted to it. The inner ring of the slewing bearing 34 is provided with an internal gear. A rotary motor 35 is mounted on the lifting base frame 31, and the drive pinion 351 on its output shaft meshes with the internal gear of the slewing bearing 34.

[0034] The conveying platform assembly 4 is fixedly mounted on the inner ring of the slewing bearing 34 via the connecting frame 6. The conveying platform assembly 4 includes a rectangular frame 41, a conveying motor 42, a conveyor belt 43, a rotating shaft 44, and a crossbeam 46. A rotating shaft 44 is rotatably mounted at each end of the rectangular frame 41, and a conveying motor 42 is mounted at one end of the rectangular frame 41. The conveying motor 42 drives one end of a rotating shaft 44. Transmission mechanisms for driving the conveyor belt 43 are correspondingly mounted on the two rotating shafts 44. Several conveyor belts 43 are correspondingly wrapped around the two rotating shafts 44. Several crossbeams 46 are installed in the middle of the rectangular frame 41, and several conveyor belts 43 wrap around the outside of several crossbeams 46, with gaps between adjacent conveyor belts 43. Several vertical supports 65 of the connecting frame 6 pass through the gaps and are fixedly connected to the bottom of the corresponding crossbeam 46. Specifically, the disc-shaped connector 63 of the connecting frame 6 is connected to the inner ring of the slewing bearing 34 by bolts. Several vertical supports 65 of the connecting frame 6 pass upward through the gaps between the conveyor belts 43 and are fixedly connected to the lower part of the crossbeam 46 of the conveyor platform assembly 4. The connecting frame 6 is installed at the middle of the lower end of the conveyor platform assembly 4, and its structure includes a frame 61, a crossbeam 62, a diagonal brace 64, and vertical supports 65, which can evenly and effectively transfer the weight of the material borne by the conveyor belt 43 to the center of the slewing bearing 34. This design makes the load transfer path direct and clear. When the conveyor platform assembly 4 receives the sponge block or during rotation, the lifting frame assembly 3 and the lifting assembly 2 can cooperate with the counterweight 28 and the rigid frame to counteract any possible eccentric torque, thereby ensuring the smooth operation of the entire lifting and rotation.

[0035] The platform surface of the conveyor platform assembly 4 is composed of multiple conveyor belts 43, forming a grid-like contact surface to reduce weight and decrease the frictional contact area with the sponge blocks. A transition platform 7 is also installed at the front end of the conveyor platform assembly 4 to facilitate smooth docking with other workstation platforms. The transition platform 7, via guide rollers 71, smoothly bridges the gap between the conveyor platform assembly 4 and other fixed workstation platforms when docking, providing guidance for the movement of the sponge blocks in and out. This effectively prevents material jamming or edge damage due to height differences or gaps, ensuring the continuity and reliability of the conveying process.

[0036] Work process: When the sponge block needs to be transferred from station A to station B, which is higher and at a different angle, the trolley moves along track 5 to below station A. The drive motor 25 of the lifting assembly 2 is activated, the chain 29 lowers, and the lifting frame assembly 3 descends, so that the platform of the conveyor platform assembly 4 is slightly lower than the sponge block. The sponge block is then manually or by a robotic arm pushed onto the conveyor belt 43. Subsequently, the drive motor 25 reverses, lifting the lifting frame assembly 3 to raise the sponge block to a height exceeding the required level for station B. Next, the rotary motor 35 is activated, driving the conveyor platform assembly 4 to rotate via gear transmission, adjusting the sponge block to the correct orientation. Finally, the lifting assembly 2 is controlled again to precisely lower the sponge block to the platform of station B, and the conveyor motor 42 drives the conveyor belt 43 to deliver the sponge block, completing the transfer. The entire process is smooth and continuous, requiring no repeated movement or adjustment of the trolley's position.

[0037] The scope of protection of this utility model is not limited to the above embodiments. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A rotating and lifting sponge block conveying and turnover trolley, characterized in that, include: Mobile platform chassis assembly (1) for moving on a track; Lifting component (2) is installed on the mobile platform chassis component (1); The lifting frame assembly (3) is connected to the power output end of the lifting assembly (2) and is driven by the lifting assembly (2) to perform vertical lifting and lowering movements; as well as Conveying platform component (4), used to carry materials; The conveying platform assembly (4) is rotatably mounted on the front end of the lifting frame assembly (3) via a rotary drive mechanism.

2. The sponge block conveying and turnover trolley according to claim 1, characterized in that, The lifting assembly (2) includes a gantry (21), a drive motor (25), a rotating shaft (26), a chain (29), a sprocket (27), and a counterweight (28). The gantry (21) is fixedly installed on the mobile platform base frame assembly (1), the rotating shaft (26) is rotatably installed on the top of the gantry (21), and the drive motor (25) drives the rotating shaft (26). The sprocket (27) is fixedly mounted on the rotating shaft (26); one end of the chain (29) is connected to the lifting frame assembly (3), and the other end passes around the sprocket (27) and is connected to the counterweight (28).

3. The sponge block conveying and turnover trolley according to claim 2, characterized in that, It also includes a side column (24), which is fixedly connected to the gantry frame (21) by a connecting brace (23) to form a triangular frame structure; the counterweight (28) is housed in the space of the triangular frame structure.

4. The sponge block conveying and turnover trolley according to claim 3, characterized in that, The gantry (21) has a vertical U-shaped track groove (210) on its inner side; the lifting frame assembly (3) has guide wheels (33) installed on both sides, the guide wheels (33) are embedded in the U-shaped track groove (210) and roll along it.

5. The sponge block conveying and turnover trolley according to claim 4, characterized in that, The rotary drive mechanism includes a slewing bearing (34), a rotary motor (35), and a drive gear (351). The outer ring of the slewing bearing (34) is fixed to the lifting frame assembly (3), and the inner ring is fixedly connected to the conveying platform assembly (4); The rotary motor (35) is mounted on the lifting frame assembly (3), and the drive gear (351) on its output shaft meshes with the inner meshing gear of the inner ring of the slewing bearing (34).

6. The sponge block conveying and turnover trolley according to claim 5, characterized in that, The lifting frame assembly (3) includes a lifting base frame (31) and vertical frames (32). Vertical frames (32) are connected to both sides of the rear end of the lifting base frame (31). Each vertical frame (32) has a guide wheel (33) installed at its upper and lower ends. The lifting base frame (31) includes two side frames (311), a rear horizontal frame (312), and a front circular frame (313). The two ends of the rear horizontal frame (312) are respectively connected to one end of the two side frames (311), and the other ends of the two side frames (311) are respectively connected to the two sides of the front circular frame (313). The two vertical frames (32) are respectively connected above the two ends of the rear horizontal frame (312). The outer ring of the slewing bearing (34) is fixed to the upper end of the front circular frame (313). The rotary motor (35) is installed on the lifting base frame (31).

7. The sponge block conveying and turnover trolley according to claim 5 or 6, characterized in that, The lower end of the conveying platform assembly (4) is connected to the inner ring of the slewing bearing (34) via a connecting frame (6). The connecting frame (6) includes four side frames (61), horizontal braces (62), disc-shaped connectors (63), diagonal braces (64), and vertical supports (65). The four side frames (61) form a rectangular bottom frame, and several horizontal braces (62) are installed in the middle of the rectangular bottom frame. One end of the disc-shaped connector (63) is installed on the side frame (61) at one end. The other end is installed on the adjacent cross brace (62), and the side of the cross brace (62) away from the disc connector (63) is connected to the frame (61) on both sides of the cross brace (62) by two diagonal braces (64); the disc connector (63) is connected to the inner ring of the slewing bearing (34) by bolts; several vertical supports (65) are installed on the frame (61) and the cross brace (62), and the upper end of the vertical supports (65) is connected to the lower part of the cross frame (46) of the conveying platform assembly (4).

8. The sponge block conveying and turnover trolley according to claim 7, characterized in that, The conveying platform assembly (4) includes a rectangular frame (41), a conveyor motor (42), a conveyor belt (43), a rotating shaft (44), and a crossbeam (46). A rotating shaft (44) is rotatably mounted at both ends of the rectangular frame (41). A conveyor motor (42) is mounted at one end of the rectangular frame (41). The conveyor motor (42) drives one end of a rotating shaft (44). A transmission mechanism for driving the conveyor belt (43) is correspondingly mounted on the two rotating shafts (44). Several conveyor belts (43) are correspondingly wrapped around the two rotating shafts (44). Several crossbeams (46) are installed in the middle of the rectangular frame (41). Several conveyor belts (43) wrap around the outside of several crossbeams (46). There is a gap between adjacent conveyor belts (43). Several vertical supports (65) of the connecting frame (6) pass through the gaps and are fixedly connected to the bottom of the corresponding crossbeam (46).

9. The sponge block conveying and turnover trolley according to claim 1, characterized in that, The front end of the conveying platform assembly (4) is equipped with a transition platform (7). The transition platform (7) includes at least one guide roller (71). Both ends of the guide roller (71) are respectively mounted on the front end of the conveying platform assembly (4) through a support (72). Both ends of the guide roller (71) are rotatably mounted on the corresponding support (72).

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