Slab lifting and stacking apparatus

Abstract

The utility model provides a kind of stone slab lifting and stacking equipment, it includes stand, track, sliding frame, drive mechanism, lifting mechanism, adjusting mechanism, stand quantity is two groups, and relative arrangement, track is installed in stand top, sliding frame reciprocating sliding along track length direction, drive mechanism is installed on sliding frame and drives sliding frame to move, lifting mechanism lifting arrangement is on sliding frame, and drive stone slab lifting, adjusting mechanism is transversely arranged on sliding frame, and drive lifting mechanism inserts into stone slab inside.The utility model discloses the stone slab lifting and stacking equipment, bilateral symmetry stand-track-sliding frame and transverse adjusting mechanism linkage, realize stone slab bilateral synchronous clamping, accurate centering and smooth transfer, significantly reduce interlayer gap and breakage rate;Cylinder-sliding rod pair driving moving block transverse displacement, response fast, positioning accuracy is high, avoid clamping deviation;Threaded sleeve-screw-assistant rod combination lifting, the horizontal degree of supporting plate is constant, can stably bear heavy stone slab.

Description

Technical Field

[0001] This utility model relates to the field of stone processing technology, and in particular to a stone slab lifting and stacking device. Background Technology

[0002] Natural stone, with its beautiful texture and durable strength, has become a core material for high-end building interior and exterior finishes, flooring, and countertops. In the past decade, stone processing centers have rapidly developed towards continuous and large-scale operations, with polishing and cutting speeds increasing exponentially. However, the stacking rate at the downstream end has remained stagnant, becoming a bottleneck restricting capacity release. How to achieve safe, rapid, and aligned stacking of heavy slabs such as marble and granite after they come off the production line directly impacts warehousing turnover and transportation costs, making technological upgrades increasingly urgent.

[0003] Currently, the industry generally uses two types of solutions: one is to lay fixed roller conveyors on the ground and use cantilever cranes or side-suction lifting devices to lift veneers one by one onto wooden supports; the other is to set up unidirectional electric hoists on a gantry frame and complete single-point lifting by manual hooking. Both methods rely on the operator's visual alignment and require multiple stops to adjust the lifting points. In addition, the swinging of the lifting devices can easily cause collisions with the veneer surface, resulting in a high rate of edge and corner damage.

[0004] The core defect of the aforementioned existing technology lies in the lack of a rigid clamping method that is synchronous on both sides, laterally adjustable, and linked with the walking mechanism. This makes it impossible to maintain horizontal stability during the lifting, translation, and lowering of heavy stone slabs. The gaps between stacked layers are large, and the risk of tilting is high, making it difficult to meet the urgent requirements of automated production lines for high cycle time and low breakage rate. Utility Model Content

[0005] The purpose of this utility model is to propose a stone slab lifting and stacking device to solve the technical problem in the prior art that there is a lack of dual-sided synchronization and lateral adjustment in the process of lifting, moving and lowering heavy stone slabs.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows: A slab lifting and stacking device includes two sets of opposing uprights; tracks respectively installed on the top of the two sets of uprights; sliding frames respectively sliding along the corresponding tracks; drive mechanisms respectively installed on the two sliding frames and driving the corresponding sliding frames to move; lifting mechanisms respectively lifting and lowering the two sliding frames; and adjustment mechanisms respectively horizontally installed on the two sliding frames and driving the corresponding lifting mechanisms to move horizontally.

[0007] By adopting the above technical solution, the symmetrical walking system composed of double-sided uprights-tracks-sliding structures is linked with the lateral adjustment mechanism, enabling the lifting mechanism to be adjusted synchronously in the horizontal and vertical directions. This achieves simultaneous clamping, smooth lifting and precise stacking of stone slabs on both sides, significantly reducing the risk of gaps between layers and shaking damage.

[0008] Furthermore, the adjustment mechanism includes a first cylinder fixedly mounted on the sliding frame, a movable block mounted on the first cylinder, and a slide rod horizontally mounted on the sliding frame and passing through the movable block; the lifting mechanism is disposed on the movable block, and the first cylinder drives the movable block to slide along the slide rod to drive the lifting mechanism to move laterally.

[0009] By adopting the above technical solution, the cylinder-slide bar pair provides a high-rigidity linear guide for the moving block, which enables the lifting mechanism to respond quickly to lateral displacement and has high positioning accuracy, thus avoiding clamping deviation.

[0010] Furthermore, the lifting mechanism includes a threaded sleeve fixedly disposed within the movable block, a screw threadedly connected to the threaded sleeve, a support plate installed at the bottom of the screw, and auxiliary rods vertically disposed on both sides of the screw and connected to the support plate.

[0011] By adopting the above technical solution, the threaded sleeve-screw pair converts the rotational motion into a smooth lifting and lowering of the pallet, and the auxiliary rod shares the off-center load torque, ensuring that the levelness of the heavy stone slab remains constant during the lifting and lowering process.

[0012] Furthermore, the movable block has at least three vertical through holes, and the threaded sleeve and the auxiliary rod are respectively inserted into the through holes, with the auxiliary rod moving up and down within the through holes.

[0013] By adopting the above technical solution, the arrangement of multiple through holes forms a multi-point guide, which can suppress the slippage of the pallet, improve the repeatability of lifting and lowering, and reduce the wear of the threaded pair.

[0014] Furthermore, a gear is fixedly provided on the top of the threaded sleeve, and a transmission rod is rotatably provided on the two sliding frames. The transmission rod is provided with the same gear as the threaded sleeve, and a first motor is provided on the sliding frame to drive the transmission rod to rotate.

[0015] By adopting the above technical solution, the same transmission rod synchronously drives the gears on both sides, ensuring that the two sets of lifting mechanisms lift at the same speed, eliminating the tilting and jamming of the stone slab caused by asynchronous operation.

[0016] Furthermore, the bottom of the auxiliary rod is provided with a round rod, the support plate is rotatably mounted on the round rod via a round sleeve, the tail of the support plate is provided with a swing rod, and a second cylinder is rotatably mounted between the bottom of the auxiliary rod and the swing rod. When the second cylinder extends or retracts, it drives the support plate to swing around the round rod.

[0017] By adopting the above technical solution, the second cylinder-swing rod combination allows the pallet to tilt slowly during the extraction stage, and the stone slab falls from surface contact to line contact, reducing impact cracks.

[0018] Furthermore, the drive mechanism includes a wheel rotatably disposed at the bottom of the sliding frame and rotating along the track, and a second motor mounted on the sliding frame and driving the wheel to rotate.

[0019] By adopting the above technical solution, the wheel-rail combination structure is simple and has a large load-bearing capacity. The second motor directly drives the sliding frame to achieve long-distance high-speed reciprocating motion, shortening the palletizing cycle.

[0020] Compared with the prior art, the present invention has the following beneficial effects: The stone slab lifting and stacking device described in this utility model features a symmetrical double-sided upright frame, track, sliding frame, and lateral adjustment mechanism working in tandem to achieve synchronous clamping, precise centering, and smooth transfer of stone slabs on both sides, significantly reducing interlayer gaps and breakage rates. A cylinder-slide bar pair drives the lateral displacement of the moving block, providing fast response and high positioning accuracy, preventing clamping deviation. A combination of threaded sleeve, screw, and auxiliary rod for lifting ensures constant pallet levelness, stably supporting heavy stone slabs. A transmission rod synchronously drives gears on both sides, ensuring both lifting mechanisms move at the same speed, eliminating the risk of tilting. The pallet can swing downwards around a circular rod, reducing impact cracks in the stone slabs. Direct wheel-track drive results in a simple structure with high load capacity, effectively shortening the stacking cycle. Attached Figure Description

[0021] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0022] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of the stone slab lifting and stacking device described in this embodiment of the utility model; Figure 2 This is a schematic diagram of the adjustment mechanism described in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the lifting mechanism described in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the transmission rod portion according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the circular sleeve portion according to an embodiment of the present utility model; Figure 6 This is a schematic diagram of the drive mechanism described in an embodiment of the present utility model.

[0023] Explanation of reference numerals in the attached figures: 1. Frame; 2. Track; 3. Sliding frame; 4. Drive mechanism; 401. Wheel; 402. Second motor; 5. Lifting mechanism; 501. Threaded sleeve; 502. Screw; 503. Support plate; 504. Auxiliary rod; 505. Round rod; 506. Round sleeve; 507. Swing rod; 508. Second cylinder; 509. Gear; 510. Transmission rod; 511. First motor; 6. Adjustment mechanism; 601. First cylinder; 602. Moving block; 603. Slide rod; 604. Through hole. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "back" appear, indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances.

[0027] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] This embodiment relates to a stone slab lifting and stacking device, the overall structure of which is as follows: Figure 1 As shown, it includes a support frame 1, a track 2, a sliding frame 3, a drive mechanism 4, a lifting mechanism 5, and an adjustment mechanism 6.

[0029] The support frame 1 consists of two sets arranged opposite to each other. The track 2 is installed on the top of the support frame 1. The sliding frame 3 slides back and forth along the length of the track 2. The drive mechanism 4 is installed on the sliding frame 3 and drives the sliding frame 3 to move. The lifting mechanism 5 is arranged on the sliding frame 3 and drives the stone slab to rise and fall. The adjustment mechanism 6 is arranged horizontally on the sliding frame 3 and drives the lifting mechanism 5 to insert into the stone slab.

[0030] It is worth mentioning that there are two sets of upright frame 1, track 2, sliding frame 3, drive mechanism 4, lifting mechanism 5 and adjustment mechanism 6, located on opposite sides of the stone slab. The two sliding frames 3 are connected by a connecting beam. The two drive mechanisms 4 are started at the same time, driving the sliding frames 3 to move on the track 2. After the stone slab is processed, it needs to be stacked. The lifting mechanism 5 moves to the top of the stone slab with the sliding frame 3 and clamps the stone slab. The clamping principle is that the adjustment mechanism 6 can drive the lifting mechanism 5 to move laterally, that is, control the two lifting mechanisms 5 to move closer or further apart. The bottom of the lifting mechanism 5 is inserted into the bottom of the stone slab, clamping, lifting, moving and stacking the stone slab, thereby realizing automatic stacking.

[0031] Based on the above overall introduction, an exemplary structure of this embodiment is as follows: Figure 2 As shown, the adjusting mechanism 6 includes a first cylinder 601 fixedly mounted on the sliding frame 3, a moving block 602 that slides with the first cylinder 601, and a slide rod 603 mounted on the sliding frame 3 and assisting the moving block 602 in sliding. The lifting mechanism 5 is raised and lowered on the sliding block. It should be noted that the first cylinder 601 is horizontally mounted on the outside of the sliding frame 3, the moving block 602 is mounted on the piston rod of the first cylinder 601, the slide rod 603 passes through the moving block 602, and the moving block 602 can slide on the slide rod 603. A through hole 604 is vertically opened on the moving block 602, and the lifting mechanism 5 is inserted into the through hole 604 and can be raised and lowered within the through hole 604, thereby realizing the lateral movement and lifting action of the lifting mechanism 5.

[0032] As a preferred implementation method, such as Figure 3 As shown, the lifting mechanism 5 in this embodiment includes a threaded sleeve 501 fixedly mounted on the adjusting mechanism 6, a screw 502 threadedly connected to the threaded sleeve 501, a support plate 503 installed at the bottom of the screw 502 for supporting the stone slab, and auxiliary rods 504 on both sides of the screw 502 for assisting the lifting of the support plate 503. It should be noted that the threaded sleeve 501 is fixedly installed in the through hole 604 of the moving block 602. The auxiliary rod 504 passes through other through holes 604 and can slide inside them. The screw 502 and the auxiliary rod 504 are connected by a connecting plate. When the screw 502 rises and falls, it drives the auxiliary rod 504 to rise and fall. The rise and fall of the screw 502 is achieved through the threaded sleeve 501. By rotating the threaded sleeve 501, the screw 502 will achieve the rising and falling action under the action of the threaded connection. The support plate 503 is installed at the bottom of the auxiliary rod 504. Therefore, the screw 502 can drive the support plate 503 to rise and fall. The end of the support plate 503 near the stone slab is set to be tapered. This setting makes it easier to insert into the bottom of the stone slab. When the support plate 503 descends to the bottom of the stone slab, the adjusting mechanism 6 pushes the support plate 503 into the bottom of the stone slab, thereby realizing the clamping and lifting of the support plate 503.

[0033] As a preferred option, such as Figure 4 As shown, in this embodiment, a gear 509 is fixedly mounted on the top of the threaded sleeve 501, and a transmission rod 510 is rotatably mounted on the two sliding frames 3. The transmission rod 510 is equipped with the same gear 509 as the threaded sleeve 501, and the two gears 509 mesh with each other. One end of the transmission rod 510 is driven to rotate by a first motor 511. Specifically, the gear 509 can be a helical gear 509 or a bevel gear 509. A bearing can be mounted on the sliding frame 3, and the transmission rod 510 is installed inside the bearing to ensure rotation. The purpose of setting the transmission rod 510 is to ensure that the two lifting mechanisms 5 can lift and lower simultaneously. Alternatively, a first motor 511 can be mounted on each of the two sliding frames 3, and a gear 509 can be mounted on the drive shaft of the first motor 511, directly meshing with the gear 509 on the threaded sleeve 501. The installation method can be selected according to the actual application.

[0034] In addition, such as Figure 2 As shown, a key bar is provided on the transmission rod 510, and a keyway adapted to the chain is provided on the gear 509 on the transmission rod 510. The purpose of this arrangement is to ensure that the transmission rod 510 can not only drive the gear 509 to rotate, but also ensure that the gear 509 can slide on the transmission rod 510. A connecting plate for the gear 509 to rotate is provided on the moving block 602, and a bearing is installed on the connecting plate. The gear 509 is installed on the bearing, and the transmission rod 510 passes through the gear 509 and the bearing. The above arrangement can realize the lifting mechanism 5 and the adjustment mechanism 6 without affecting each other.

[0035] As a preferred option, such as Figure 5 As shown, in this embodiment, a round rod 505 is provided at the bottom of the auxiliary rod 504, and a support plate 503 is rotatably mounted on the round rod 505. A swing rod 507 is provided at the tail of the support plate 503, and a second cylinder 508 is rotatably mounted between the bottom of the auxiliary rod 504 and the support plate 503. Specifically, the cylinder body of the second cylinder 508 is rotatably connected to the bottom of the auxiliary rod 504, the piston rod is rotatably connected to the tail of the swing rod 507, a round sleeve 506 is rotatably mounted on the round rod 505, the support plate 503 is fixedly mounted on the round sleeve 506, and the other end of the swing rod 507 is fixedly mounted on the round sleeve 506. When the second cylinder 508 extends or retracts, it can drive the swing rod 507 to swing, thereby driving the support plate 503 to swing. The purpose of this arrangement is that when the support plate 503 is pulled out from the bottom of the stone slab, it can tilt to ensure that the stone slab is slowly placed on the bottom stone slab, avoiding the stone slab from falling directly and causing cracks.

[0036] As a preferred implementation method, such as Figure 6As shown, the drive mechanism 4 in this embodiment includes a wheel 401 rotatably mounted at the bottom of the sliding frame 3 and rotating along the track 2, and a second motor 402 mounted on the sliding frame 3 to drive the wheel 401 to rotate. It should be noted that a fixed shaft extends outward from the central axis of the wheel 401. Pulleys are respectively mounted on the fixed shaft and the second motor 402. The two pulleys are driven by a belt. After the second motor 402 starts, it drives the wheel 401 to rotate through the pulleys. This arrangement enables the reciprocating sliding of the sliding frame 3.

[0037] In this embodiment, the stone slab lifting and stacking equipment uses a symmetrical double-sided upright frame 1, track 2, sliding frame 3, and lateral adjustment mechanism 6 in linkage to achieve synchronous clamping, precise centering, and smooth transfer of the stone slabs on both sides, significantly reducing interlayer gaps and breakage rates. The cylinder-slide rod 603 drives the moving block 602 to move laterally, providing fast response and high positioning accuracy, avoiding clamping deviation. The threaded sleeve 501, screw 502, and auxiliary rod 504 combine for lifting, ensuring the pallet 503 maintains a constant level, stably supporting heavy stone slabs. The transmission rod 510 synchronously drives the double-sided gears 509, ensuring that the two lifting mechanisms 5 lift at the same speed, eliminating the risk of tilting. The pallet 503 can swing and lower around the round rod 505, reducing impact cracks in the stone slabs. The wheel 401 and track 2 are directly driven, resulting in a simple structure, high load capacity, and effectively shortening the stacking cycle.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stone slab lifting and stacking device, characterized in that, include: Two sets of uprights arranged opposite each other (1); Tracks (2) are respectively installed on the top of the two sets of uprights (1); Sliding frames (3) that slide along the corresponding tracks (2); A drive mechanism (4) is installed on the two sliding frames (3) respectively and drives the corresponding sliding frames (3) to move. Lifting mechanisms (5) are respectively installed on the two sliding frames (3); Adjustment mechanisms (6) are respectively arranged horizontally on the two sliding frames (3) and drive the corresponding lifting mechanisms (5) to move horizontally.

2. The stone slab lifting and stacking device according to claim 1, characterized in that: The adjustment mechanism (6) includes a first cylinder (601) fixedly installed on the sliding frame (3), a moving block (602) installed on the first cylinder (601), and a slide rod (603) horizontally installed on the sliding frame (3) and passing through the moving block (602). The lifting mechanism (5) is mounted on the moving block (602), and the first cylinder (601) drives the moving block (602) to slide along the slide bar (603) to drive the lifting mechanism (5) to move laterally.

3. The stone slab lifting and stacking device according to claim 2, characterized in that: The lifting mechanism (5) includes a threaded sleeve (501) fixedly installed in the moving block (602), a screw (502) threadedly connected to the threaded sleeve (501), a support plate (503) installed at the bottom of the screw (502), and auxiliary rods (504) vertically installed on both sides of the screw (502) and connected to the support plate (503).

4. The stone slab lifting and stacking device according to claim 3, characterized in that: The movable block (602) has at least three through holes (604) vertically opened. The threaded sleeve (501) and the auxiliary rod (504) are respectively inserted into the through holes (604). The auxiliary rod (504) moves up and down within the through holes (604).

5. The stone slab lifting and stacking device according to claim 4, characterized in that: A gear (509) is fixedly installed on the top of the threaded sleeve (501), and a transmission rod (510) is rotatably installed on the two corresponding sliding frames (3). The transmission rod (510) is provided with the same gear (509) as the threaded sleeve (501), and a first motor (511) is provided on the sliding frame (3) to drive the transmission rod (510) to rotate.

6. The stone slab lifting and stacking device according to claim 4, characterized in that: The auxiliary rod (504) has a round rod (505) at its bottom. The support plate (503) is rotatably mounted on the round rod (505) via a round sleeve (506). The support plate (503) has a swing rod (507) at its tail. A second cylinder (508) is rotatably mounted between the bottom of the auxiliary rod (504) and the swing rod (507). When the second cylinder (508) extends or retracts, it drives the support plate (503) to swing around the round rod (505).

7. The stone slab lifting and stacking device according to any one of claims 1-6, characterized in that: The drive mechanism (4) includes a wheel (401) rotatably disposed at the bottom of the sliding frame (3) and rotating along the track (2), and a second motor (402) mounted on the sliding frame (3) and driving the wheel (401) to rotate.

Images