Plate lifting device and plate processing equipment

Abstract

The invention discloses a plate lifting device and plate processing equipment, and relates to the technical field of plate processing. The supporting assembly comprises four stand columns arranged in a matrix mode. The lifting assembly is provided with a supporting face capable of supporting a plate. The hydraulic cylinder is arranged on the lifting assembly and located below the supporting face, and the movable end of the hydraulic cylinder can stretch out and draw back in the horizontal direction. The four guide wheel assemblies are connected with the four stand columns in an up-down sliding mode correspondingly, and all the guide wheel assemblies are fixedly connected to the lifting assembly. The transition wheel assemblies are arranged on the lifting assembly and located below the supporting face, and center shafts of the transition wheel assemblies extend up and down; the four steel wire ropes correspond to the four stand columns respectively, the upper ends of the steel wire ropes are fixedly connected to the stand columns, the lower ends of the steel wire ropes bypass the guide wheel assemblies and the corresponding transition wheel assemblies and are fixedly connected to the movable ends of the hydraulic cylinders, and the hydraulic cylinders drive the lower ends of all the steel wire ropes to move in the same direction so that the lifting assemblies can ascend and descend. The lifting device is simple in structure, reliable, durable, easy and convenient to install and maintain, low in cost and high in lifting speed.

Description

Technical Field

[0001] The present invention relates to the technical field of plate processing, and in particular to a plate lifting device and plate processing equipment. Background Art

[0002] During the plate processing, a plate lifting device is required to lift the stacked plates to a certain height in order to realize the plate loading function.

[0003] In the related art, some plate lifting devices use four chains or four steel wire ropes to pull the lifting bracket to move the plate upward stably. However, the chain is prone to wear, elongation, or even breakage when exerting an upward pulling force on the lifting bracket for a long time, resulting in the need for frequent chain maintenance. In addition, the chain replacement and maintenance process is complicated and costly. Steel wire ropes are generally used in conjunction with counterweights to reduce the operating load and performance requirements of the motor. However, the counterweights are large in size, difficult to install, and expensive.

[0004] In addition, some plate lifting devices use four screw rods to drive the lifting bracket to move up and down, but there are the following problems: the lifting speed is slow, affecting the plate lifting efficiency; the transmission efficiency is low, resulting in increased energy consumption; for high plate load requirements, the installation environment requirements are strict to ensure that the screw rod is stable and not easy to deform and break; it is easy to wear and tear, and requires regular inspection and maintenance such as adding lubricating oil; the manufacturing cost and maintenance cost are high.

[0005] In addition, some plate lifting devices use a scissor-type lifting mechanism to drive the lifting bracket to rise and fall. However, the installers need to dig a foundation pit on the ground to accommodate the scissor-type lifting mechanism to better match the plate loading height of the plate processing equipment and meet the number of plates that need to be lifted at one time. This makes the on-site installation cumbersome and difficult. Moreover, the scissor-type lifting mechanism has a complex structure and is difficult to repair. Summary of the invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a plate lifting device and plate processing equipment, which are simple in structure, reliable and durable, easy to install and maintain, low in cost, and fast in lifting speed.

[0007] A first aspect of the present invention provides a plate lifting device, which includes: A support assembly comprising four columns arranged in a matrix; a lifting assembly having a support surface for supporting the plate; A hydraulic cylinder, which is provided on the lifting assembly and is located below the supporting surface, wherein the movable end of the hydraulic cylinder is configured to be able to extend and retract in the horizontal direction; There are four guide wheel assemblies, which are respectively arranged corresponding to the four columns and slidably connected in the up-down direction, and all the guide wheel assemblies are fixedly connected to the lifting assembly; A transition wheel assembly, which is provided in plurality and is arranged on the lifting assembly, the transition wheel assembly is located below the supporting surface, and the central axis of the transition wheel assembly extends in the up-down direction; There are four steel wire ropes, which are respectively arranged corresponding to the four columns. The upper end of each steel wire rope is fixedly connected to the column, and the lower end of each steel wire rope passes around the guide wheel assembly and the corresponding transition wheel assembly, and is fixedly connected to the movable end of the hydraulic cylinder. The hydraulic cylinder is used to drive the lower ends of all the steel wire ropes to move in the same direction so that the lifting assembly moves in the up and down directions.

[0008] The plate lifting device according to the first aspect of the embodiment of the present invention has at least the following beneficial effects: since the upper ends of the four steel wire ropes are fixedly connected to the corresponding columns, and the lower ends of the steel wire ropes are fixedly connected to the movable end of the hydraulic cylinder after passing around the guide wheel assembly and the corresponding transition wheel assembly, when the stacked plates are placed on the supporting surface of the lifting assembly, the hydraulic cylinder is started, so that the movable end of the hydraulic cylinder can drive the lower ends of the four steel wire ropes to move linearly in the same direction, enabling the lifting assembly to move the plates up a certain distance under the action of the four steel wire ropes, thereby completing the plate lifting work.

[0009] The present invention provides a structure consisting of a wire rope, a guide wheel assembly, a transition wheel assembly and a hydraulic cylinder between the column and the lifting assembly, and uses the same hydraulic cylinder to quickly pull all the wire ropes, so that the lifting assembly can be raised and lowered quickly and stably, and the number of parts is small, maintenance is convenient, and the manufacturing cost and operating cost are low. Compared with the chain drive method, the present invention is more reliable and durable, does not require frequent maintenance, and has lower costs; compared with the wire rope and counterweight drive method, the structure is simple, counterweights are saved, installation work is simplified, and costs are reduced; compared with the screw drive method, the lifting speed is faster, the transmission efficiency is high, the energy consumption and cost are low, and regular inspection and maintenance are not required; compared with the scissor lift mechanism drive method, the on-site installation is simple and convenient, and there is no need to set up a foundation pit.

[0010] In some embodiments of the present invention, the lifting assembly includes a lifting bracket and a roller conveying mechanism, the roller conveying mechanism is arranged above the lifting bracket and fixedly connected to the lifting bracket, the roller conveying mechanism is provided with the supporting surface, and the hydraulic cylinder, the guide wheel assembly and the transition wheel assembly are all arranged on the lifting bracket.

[0011] In some embodiments of the present invention, the movable end of the hydraulic cylinder can be extended and retracted along a first direction, the transition wheel assembly is provided on opposite sides of the hydraulic cylinder along the first direction, and the lifting bracket is provided on opposite sides of the second direction with two guide wheel assemblies arranged at intervals along the first direction, the central axis of the guide wheel assembly extends along the first direction, and the first direction, the second direction and the up and down directions are perpendicular to each other.

[0012] In some embodiments of the present invention, the transition wheel assembly arranged near the movable end of the hydraulic cylinder is set as a first transition wheel assembly, and the transition wheel assembly arranged away from the movable end of the hydraulic cylinder is set as a second transition wheel assembly, wherein two of the steel wire ropes are sequentially passed around the first transition wheel assembly and the second transition wheel assembly and are fixedly connected to the movable end of the hydraulic cylinder, and the other two steel wire ropes are passed around the second transition wheel assembly and are fixedly connected to the movable end of the hydraulic cylinder.

[0013] In some embodiments of the present invention, the first transition wheel assembly includes two coaxially arranged first transition wheels, the second transition wheel assembly includes four coaxially arranged second transition wheels, and the first transition wheel and the second transition wheel are both rotatably connected to the lifting bracket.

[0014] In some embodiments of the present invention, two of the second transition wheels are fixedly connected, and another two of the second transition wheels are fixedly connected.

[0015] In some embodiments of the present invention, the lifting bracket is provided with a mounting plate, the mounting plate is provided with a pump station, the pump station is connected to the hydraulic cylinder through a pipeline to form a hydraulic circuit; and / or the roller conveying mechanism is provided with at least two forklift slots opening upward.

[0016] In some embodiments of the present invention, two through holes are provided on the opposite side surfaces of the lifting bracket along the second direction for the steel wire rope to pass through and be wound around the transition wheel assembly.

[0017] In some embodiments of the present invention, a fall arrester is provided between the guide wheel assembly and the column.

[0018] A second aspect of the present invention provides a plate processing device, which includes the plate lifting device as described in the first aspect of the present invention.

[0019] The plate processing equipment according to the second aspect of the embodiment of the present invention has at least the following beneficial effects: the plate processing equipment adopts the plate lifting device of the above structure, which can realize the rapid and stable upward movement of the plate, improve the plate processing efficiency, and is reliable and durable, does not require frequent maintenance, so that the plate processing work can be carried out continuously, thereby increasing the plate processing volume and increasing economic benefits.

[0020] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the three-dimensional structure of a plate lifting device provided according to an embodiment of the present invention; Figure 2 is a bottom view of a plate lifting device provided according to an embodiment of the present invention; Figure 3 is a schematic diagram of the three-dimensional structure of a lifting assembly provided according to an embodiment of the present invention; Figure 4 Schematic diagram of winding of a steel wire rope according to an embodiment of the present invention.

[0022] Figure numerals: 100, support assembly; 110, column; 200, guide wheel assembly; 300, lifting assembly; 310, lifting bracket; 311, through hole; 320, roller conveyor mechanism; 330, forklift slot; 400, hydraulic cylinder; 410, connector; 420, mounting plate; 500, transition wheel assembly; 600, wire rope. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it is to be understood that a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Reference below Figures 1 to 4 A plate lifting device and plate processing equipment provided according to an embodiment of the present invention are described.

[0027] like Figures 1 to 4 As shown, the plate lifting device according to the first embodiment of the present invention can be applied to plate processing work and plays the role of lifting the stacked plates. The plate lifting device of this embodiment has the advantages of simple structure, reliability and durability, easy installation and maintenance, and low cost. In addition, the plate lifting device has a fast lifting speed and can quickly lift the plate to a set height position.

[0028] In this embodiment, the plate lifting device has a first direction, a second direction and an up-down direction, the first direction is perpendicular to the second direction and the up-down direction respectively, and the second direction is perpendicular to the up-down direction. Assume that the first direction is the left-right direction and the second direction is the front-back direction.

[0029] like Figures 1 to 4 As shown, the structure of the plate lifting device includes a support assembly 100, a lifting assembly 300, a hydraulic system, a guide wheel assembly 200, a transition wheel assembly 500 and a wire rope 600.

[0030] The support assembly 100 includes four columns 110, and the four columns 110 are arranged in a matrix. It is understandable that the columns 110 are made of metal materials such as iron, have high strength, and are not prone to bending and deformation. The columns 110 are fixed to the ground by ground screws. The shape and size of the columns 110 can be set according to actual needs and are not specifically limited here. In this embodiment, the support assembly 100 also includes a connecting rod. Specifically, the four columns 110 are arranged at intervals along the first direction and the second direction, respectively, and at least one connecting rod is provided between the two columns 110 arranged at intervals along the second direction. The connecting rod extends along the second direction and is vertically connected to the columns 110 to enhance the stability of the columns 110 relative to the ground, so that the columns 110 are not easy to tip over.

[0031] The lifting assembly 300 is provided with a support surface, and the function of the support surface is to support the plate. It is understandable that the support surface is a horizontal surface, which can stably support a plurality of plates neatly stacked in the vertical direction. The area of ​​the support surface is larger than the surface area of ​​the plate. The lifting assembly 300 can move the plate in the vertical direction relative to the column 110 to achieve the function of lifting the plate. The lifting assembly 300 can be set in the area surrounded by the four columns 110.

[0032] Moreover, a lifting drive mechanism is arranged between the lifting assembly 300 and the supporting assembly 100 , and the lifting drive mechanism mainly includes a hydraulic system, a guide wheel assembly 200 , a transition wheel assembly 500 and a wire rope 600 .

[0033] The hydraulic system includes a hydraulic cylinder 400 and a pump station. The hydraulic cylinder 400 is arranged on the lifting assembly 300, and the hydraulic cylinder 400 is located below the support surface to prevent the hydraulic cylinder 400 from obstructing the plate from being placed on the support surface. At the same time, the space below the support surface can be effectively utilized to install the hydraulic cylinder 400, reducing the occupied area on the horizontal surface. The movable end of the hydraulic cylinder 400 is configured to be able to extend and retract in the horizontal direction. The pump station is connected to the hydraulic cylinder 400 through a pipeline to form a hydraulic circuit.

[0034] In some examples, the pump station is disposed on the lifting assembly 300 and can move with the lifting assembly 300. In other examples, the pump station is disposed on the ground, and the lifting assembly 300 moves up and down relative to the pump station.

[0035] It is understandable that the hydraulic cylinder 400 can be fixedly mounted on the lifting assembly 300 by bolts, so that the hydraulic cylinder 400 can move along the up and down direction with the lifting assembly 300. The hydraulic cylinder 400 is an actuator in the hydraulic system, which converts hydraulic energy into mechanical energy to push the load to work. The hydraulic cylinder 400 has the advantages of simple structure, reliable operation, easy maintenance and maintenance. The pump station (also known as the hydraulic pump station) is the power source in the hydraulic system. It is mainly composed of hydraulic pumps, motors, oil tanks, control valves and other components. The pump station drives the hydraulic pump to rotate through the motor, converts mechanical energy into pressure energy of hydraulic oil, and provides the required pressure and flow for the hydraulic system. The hydraulic oil output by the hydraulic pump can be delivered to the hydraulic cylinder 400 along a specific path, and the flow direction, pressure and flow of the hydraulic oil can be controlled, thereby realizing various actions and functions of the hydraulic system.

[0036] There are four guide wheel assemblies 200 , and the four guide wheel assemblies 200 are respectively arranged corresponding to the four columns 110 . Each guide wheel assembly 200 is slidably connected to the corresponding column 110 along the up and down direction, and all the guide wheel assemblies 200 are fixedly connected to the lifting assembly 300 .

[0037] It is understood that the guide wheel assembly 200 includes a guide wheel and a guide wheel seat, the guide wheel seat is connected to the lifting assembly 300 by bolts, and the guide wheel seat can be installed on the column 110 through a slide rail slider pair or a combination of an optical axis and a guide sleeve, so that the guide wheel seat can be smoothly raised and lowered relative to the column 110. The guide wheel is installed on the guide wheel seat through a rotating shaft, and the central axis of the guide wheel extends in the horizontal direction. The guide wheel has an annular wire groove for the wire rope 600 to be wound. The guide wheel can guide the wire rope 600 to change the extension direction of the wire rope 600, so that the extension direction of the wire rope 600 changes by 90°. The wire rope 600 can be wound around the guide wheel for one or more turns, or it can be wound around the guide wheel for less than one turn.

[0038] In some examples, the extension direction of the central axis of the guide wheel assembly 200 is consistent with the extension direction of the movable end of the hydraulic cylinder 400, for example, both extend in the first direction. In other examples, the extension direction of the central axis of the guide wheel assembly 200 is inconsistent with the extension direction of the movable end of the hydraulic cylinder 400, for example, the two are perpendicular to each other, the extension direction of the movable end of the hydraulic cylinder 400 is the first direction, and the central axis of the guide wheel assembly 200 extends in the second direction.

[0039] There are multiple transition wheel assemblies 500, and the multiple transition wheel assemblies 500 are arranged on the lifting assembly 300. The transition wheel assembly 500 is located below the supporting surface, and the central axis of the transition wheel assembly 500 extends in the up-down direction.

[0040] It is understandable that the transition wheel assembly 500 includes a transition wheel and a mounting seat, the mounting seat is connected to the lifting assembly 300 by bolts, the transition wheel is set on the mounting seat through the wheel axle, the central axis of the transition wheel extends in the up and down direction, the transition wheel also has an annular wire groove for the wire rope 600 to be wound, and the transition wheel can guide the wire rope 600 to change the extension direction of the wire rope 600, so that the extension direction of the wire rope 600 changes by 90°. Similarly, the wire rope 600 can be wound around the transition wheel for one circle or more, or it can be wound around the transition wheel for less than one circle. The mounting seat can be integrally formed with the lifting assembly 300, that is, the mounting seat is a part of the structure of the lifting assembly 300.

[0041] Four steel wire ropes 600 are provided, and the four steel wire ropes 600 are respectively arranged corresponding to the four columns 110. The upper end of each steel wire rope 600 is fixedly connected to the column 110, and the lower end of each steel wire rope 600 passes through the guide wheel assembly 200 and the corresponding transition wheel assembly 500, and is fixedly connected to the movable end of the hydraulic cylinder 400. The function of the hydraulic cylinder 400 is to drive the lower ends of all the steel wire ropes 600 to move in the same direction, so that the lifting assembly 300 moves in the up and down direction.

[0042] It can be understood that the upper end of the wire rope 600 is fixedly connected to the upper end of the column 110, and the wire rope 600 extends vertically downward along the column 110, and changes the extension direction of the wire rope 600 on the vertical plane by winding around the guide wheel assembly 200, so that the wire rope 600 extends horizontally from the guide wheel assembly 200. At this time, if the extension direction of the wire rope 600 is consistent with the extension direction of the movable end of the hydraulic cylinder 400, the wire rope 600 can be directly fixedly connected to the movable end of the hydraulic cylinder 400; if the extension direction of the wire rope 600 is inconsistent with the extension direction of the movable end of the hydraulic cylinder 400, the wire rope 600 will change the extension direction of the wire rope 600 on the horizontal plane by winding around the transition wheel assembly 500, so that the wire rope 600 extends horizontally from the transition wheel assembly 500, and the extension direction is consistent with the extension direction of the movable end of the hydraulic cylinder 400, so that the wire rope 600 can be fixedly connected to the movable end of the hydraulic cylinder 400.

[0043] In this embodiment, the column 110 is provided with a cavity which is open toward the lifting assembly 300, and the wire rope 600 and the guide wheel assembly 200 can be partially located in the cavity, thereby preventing the guide wheel assembly 200 and the wire rope 600 from being obstructed by the outside world.

[0044] In some embodiments, Figures 1 to 4 As shown, the lifting assembly 300 includes a lifting bracket 310 and a roller conveying mechanism 320 .

[0045] The roller conveying mechanism 320 is disposed above the lifting bracket 310, and the roller conveying mechanism 320 is fixedly connected to the lifting bracket 310, and the roller conveying mechanism 320 is provided with a support surface. It can be understood that the roller conveying mechanism 320 is a prior art, which mainly includes a plurality of conveying rollers arranged side by side and an electric drive device for driving the conveying rollers to rotate, and the conveying direction of the roller conveying mechanism 320 can be set to a first direction or a second direction. All the conveying rollers jointly define the support surface.

[0046] In addition, in some embodiments, the roller conveyor mechanism 320 is provided with at least two forklift slots 330, and the openings of the forklift slots 330 are open upward. The forklift slots 330 are arranged to avoid the conveying rollers in the roller conveyor mechanism 320. With such a design, the staff can transfer the stacked plates to the supporting surface of the roller conveyor mechanism 320 by forklift.

[0047] The lifting bracket 310 can be a frame formed by connecting multiple profiles vertically and horizontally. The hydraulic cylinder 400, the guide wheel assembly 200 and the transition wheel assembly 500 are all arranged on the lifting bracket 310, and the hydraulic cylinder 400, the guide wheel assembly 200, the transition wheel assembly 500 and the roller conveying mechanism 320 can move along the up and down direction together with the lifting bracket 310. The lifting bracket 310 is provided with a mounting plate 420, and the pump station is set on the mounting plate 420 by bolts. Such a setting enables the hydraulic system to rise and fall with the lifting bracket 310, avoiding the design of the pipeline between the pump station and the hydraulic cylinder 400 to be longer due to the pump station being set on the ground to meet the conditions for the lifting of the hydraulic cylinder 400.

[0048] Of course, it is not excluded that in other embodiments, the lifting assembly 300 only includes the lifting bracket 310 .

[0049] In some embodiments, Figure 2 and Figure 4 As shown, the movable end of the hydraulic cylinder 400 can be extended and retracted along the first direction, a transition wheel assembly 500 is provided on the opposite sides of the hydraulic cylinder 400 along the first direction, and two guide wheel assemblies 200 are provided on the opposite sides of the lifting bracket 310 along the second direction. Moreover, the two guide wheel assemblies 200 are arranged at a certain interval along the first direction, and the central axis of the guide wheel assembly 200 extends along the first direction.

[0050] In this embodiment, if Figure 2 and Figure 4 As shown, two transition wheel assemblies 500 located on opposite sides of the lifting bracket 310 along the first direction are arranged opposite to each other, and two guide wheel assemblies 200 located on opposite sides of the lifting bracket 310 along the second direction are arranged symmetrically. The four guide wheel assemblies 200 are respectively arranged at the four corners of the lifting bracket 310.

[0051] Furthermore, the transition wheel assembly 500 disposed near the movable end of the hydraulic cylinder 400 is set as a first transition wheel assembly, and the transition wheel assembly 500 disposed away from the movable end of the hydraulic cylinder 400 is set as a second transition wheel assembly.

[0052] Two of the steel wire ropes 600 (i.e., the two steel wire ropes 600 located on the left side of the hydraulic cylinder 400) are passed around the first transition wheel assembly and the second transition wheel assembly in sequence, and are fixedly connected to the movable end of the hydraulic cylinder 400. Figure 4As shown, taking the wire rope 600 in the upper left corner as an example, the upper end of the wire rope 600 is fixedly connected to the corresponding column 110, and the wire rope 600 extends downward and bypasses the guide wheel assembly 200 located below it, so that the wire rope 600 extends in the second direction, changing the extension direction of the wire rope 600 on the vertical plane; then, the wire rope 600 bypasses the first transition wheel assembly, so that the wire rope 600 extends in the first direction, changing the extension direction of the wire rope 600 on the horizontal plane; then, the wire rope 600 bypasses the second transition wheel assembly, so that the wire rope 600 extends in the opposite direction of the first direction, and is fixedly connected to the connecting head 410 provided at the movable end of the hydraulic cylinder 400.

[0053] The other two steel wire ropes 600 (i.e., the two steel wire ropes 600 located on the right side of the hydraulic cylinder 400) pass around the second transition wheel assembly and are fixedly connected to the movable end of the hydraulic cylinder 400. Figure 4 As shown, taking the wire rope 600 in the upper right corner as an example, the upper end of the wire rope 600 is fixedly connected to the corresponding column 110, and the wire rope 600 extends downward and bypasses the guide wheel assembly 200 located below it, so that the wire rope 600 extends along the second direction, changing the extension direction of the wire rope 600 on the vertical plane; then, the wire rope 600 bypasses the second transition wheel assembly, so that the wire rope 600 extends along the first direction, changing the extension direction of the wire rope 600 on the horizontal plane, and finally the wire rope 600 is fixedly connected to the connecting head 410 provided at the movable end of the hydraulic cylinder 400.

[0054] In some embodiments, Figure 2 and Figure 4 As shown, the first transition wheel assembly includes two first transition wheels, which are coaxially arranged, and the central axis of the first transition wheel extends in the up-down direction. The two first transition wheels are respectively arranged corresponding to two steel wire ropes 600 (i.e., the two steel wire ropes 600 located at the upper left corner and the lower left corner).

[0055] Moreover, each second transition wheel assembly includes four second transition wheels, which are coaxially arranged, and the central axis of the second transition wheel extends in the up-down direction. The four second transition wheels are respectively arranged corresponding to the four steel wire ropes 600. The first transition wheel and the second transition wheel are both rotatably connected to the lifting bracket 310, so that each first transition wheel and each second transition wheel can rotate relative to the lifting bracket 310. With such a design, the steel wire rope 600 can drive the first transition wheel or the second transition wheel to rotate, avoiding the steel wire rope 600 from being worn too quickly due to the sliding friction between the steel wire rope 600 and the first transition wheel or the second transition wheel, which is beneficial to prolonging the service life of the steel wire rope 600.

[0056] In a specific embodiment, two second transition wheels are fixedly connected and arranged adjacent to each other; another two second transition wheels are fixedly connected and arranged adjacent to each other. Of course, it is not excluded to use a transition wheel with two annular wire grooves to replace the two first transition wheels or the two second transition wheels.

[0057] In other embodiments, the first transition wheel assembly includes a first transition wheel having two annular wire grooves. When the two steel ropes 600 are wound around the first transition wheel, since the winding directions of the two steel ropes 600 are opposite, when the hydraulic cylinder 400 is working, the two steel ropes 600 will slide relative to the first transition wheel.

[0058] Moreover, the second transition wheel assembly includes a second transition wheel having four annular wire grooves. When four steel ropes 600 are wound around the second transition wheel, since two of the steel ropes 600 are in opposite winding directions to the other two steel ropes 600, when the hydraulic cylinder 400 is running, all the steel ropes 600 will slide relative to the second transition wheel.

[0059] In some embodiments, Figures 1 to 4 As shown, two through holes 311 are provided on the two opposite side surfaces of the lifting bracket 310 along the second direction, and the through holes 311 are used for allowing the steel wire rope 600 to pass through and be wound around the transition wheel assembly 500. It can be understood that the shape and size of the through holes 311 are not limited, as long as they are sufficient for the steel wire rope 600 to pass through. With such a design, it is not necessary to allow the steel wire rope 600 to be routed through the space below the lifting bracket 310.

[0060] In some embodiments, a fall arrester is provided between the guide wheel assembly 200 and the column 110. The fall arrester can play a role of rapid braking and locking to prevent the lifting assembly 300 from falling suddenly when a power failure occurs. It can be understood that the fall arrester is a prior art, and specifically, a fall arrester for elevators can be used.

[0061] In this embodiment, the column 110 is provided with a guide rod extending in the up-down direction, the guide rod is located in the cavity of the column 110, and the fall arrester is installed on the guide wheel assembly 200. When the lifting assembly 300 suddenly slides down, the fall arrester will lock the guide rod to achieve braking lock and prevent the lifting assembly 300 from falling to the ground or hitting the staff.

[0062] When using the plate lifting device provided by the embodiment of the first aspect of the present invention, since the upper ends of the four steel wire ropes 600 are fixedly connected to the corresponding columns 110, and the lower ends of the steel wire ropes 600 are fixedly connected to the movable end of the hydraulic cylinder 400 after passing around the guide wheel assembly 200 and the corresponding transition wheel assembly 500, when the stacked plates are placed on the supporting surface of the lifting assembly 300, the hydraulic cylinder 400 is started, so that the movable end of the hydraulic cylinder 400 can drive the lower ends of the four steel wire ropes 600 to move linearly in the same direction, so that the lifting assembly 300 can move the plates up a certain distance under the action of the four steel wire ropes 600, thereby completing the plate lifting work.

[0063] The present invention provides a structure consisting of a wire rope 600, a guide wheel assembly 200, a transition wheel assembly 500 and a hydraulic cylinder 400 between the column 110 and the lifting assembly 300, and uses the same hydraulic cylinder 400 to quickly pull all the wire ropes 600, so that the lifting assembly 300 can be raised and lowered quickly and stably, and the number of parts is small, maintenance is convenient, and the manufacturing cost and operating cost are low. Compared with the chain drive method, the present invention is more reliable and durable, does not require frequent maintenance, and has lower costs; compared with the drive method of the wire rope 600 and the counterweight block, the structure is simple, the counterweight block is saved, the installation work is simplified, and the cost is reduced; compared with the screw drive method, the lifting speed is faster, the transmission efficiency is high, the energy consumption and cost are low, and regular inspection and maintenance are not required; compared with the scissor lift mechanism drive method, the on-site installation is simple and convenient, and there is no need to set up a foundation pit.

[0064] like Figures 1 to 4 As shown, the plate processing equipment according to the second embodiment of the present invention includes the plate lifting device according to the first embodiment of the present invention.

[0065] It is understandable that the plate lifting device can provide the plate processing equipment with the function of lifting and loading the plate. The plate processing equipment can be, but is not limited to, a plate cutting device, a plate punching device, a plate pressing device, etc. The plate processing equipment provided by the second aspect of the present invention adopts a plate lifting device of the above structure, which can realize the rapid and stable upward movement of the plate, improve the plate processing efficiency, and is reliable and durable, does not require frequent maintenance, so that the plate processing work can be carried out continuously, thereby increasing the plate processing volume and increasing economic benefits.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0067] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A plate lifting device, characterized in that: include: A support assembly comprising four columns arranged in a matrix; a lifting assembly having a support surface for supporting the plate; A hydraulic cylinder, which is provided on the lifting assembly and is located below the supporting surface, wherein the movable end of the hydraulic cylinder is configured to be able to extend and retract in the horizontal direction; There are four guide wheel assemblies, which are respectively arranged corresponding to the four columns and slidably connected in the up-down direction, and all the guide wheel assemblies are fixedly connected to the lifting assembly; A transition wheel assembly, which is provided in plurality and is arranged on the lifting assembly, the transition wheel assembly is located below the supporting surface, and the central axis of the transition wheel assembly extends in the up-down direction; There are four steel wire ropes, which are respectively arranged corresponding to the four columns. The upper end of each steel wire rope is fixedly connected to the column, and the lower end of each steel wire rope passes around the guide wheel assembly and the corresponding transition wheel assembly, and is fixedly connected to the movable end of the hydraulic cylinder. The hydraulic cylinder is used to drive the lower ends of all the steel wire ropes to move in the same direction so that the lifting assembly moves in the up and down directions.

2. The plate lifting device according to claim 1, characterized in that: The lifting assembly includes a lifting bracket and a roller conveying mechanism, the roller conveying mechanism is arranged above the lifting bracket and fixedly connected to the lifting bracket, the roller conveying mechanism is provided with the supporting surface, and the hydraulic cylinder, the guide wheel assembly and the transition wheel assembly are all arranged on the lifting bracket.

3. The plate lifting device according to claim 2, characterized in that: The movable end of the hydraulic cylinder can be extended and retracted along the first direction, and the transition wheel assembly is provided on the opposite sides of the hydraulic cylinder along the first direction. The opposite sides of the lifting bracket along the second direction are each provided with two guide wheel assemblies arranged at intervals along the first direction. The central axis of the guide wheel assembly extends along the first direction, and the first direction, the second direction and the up and down directions are perpendicular to each other.

4. The plate lifting device according to claim 3, characterized in that: The transition wheel assembly arranged near the movable end of the hydraulic cylinder is set as a first transition wheel assembly, and the transition wheel assembly arranged away from the movable end of the hydraulic cylinder is set as a second transition wheel assembly, wherein two of the steel wire ropes are passed around the first transition wheel assembly and the second transition wheel assembly in sequence and are fixedly connected to the movable end of the hydraulic cylinder, and the other two steel wire ropes are passed around the second transition wheel assembly and are fixedly connected to the movable end of the hydraulic cylinder.

5. The plate lifting device according to claim 4, characterized in that: The first transition wheel assembly includes two coaxially arranged first transition wheels, and the second transition wheel assembly includes four coaxially arranged second transition wheels. Both the first transition wheel and the second transition wheel are rotatably connected to the lifting bracket.

6. The plate lifting device according to claim 5, characterized in that: Two of the second transition wheels are fixedly connected, and the other two of the second transition wheels are fixedly connected.

7. The plate lifting device according to claim 2, characterized in that: The lifting bracket is provided with a mounting plate, the mounting plate is provided with a pump station, the pump station is connected to the hydraulic cylinder through a pipeline to form a hydraulic circuit; and / or the roller conveying mechanism is provided with at least two forklift slots with openings opening upwards.

8. The plate lifting device according to claim 3, characterized in that: Two through holes are provided on the opposite side surfaces of the lifting bracket along the second direction for the steel wire rope to pass through and be wound around the transition wheel assembly.

9. The plate lifting device according to claim 1, characterized in that: A fall arrester is provided between the guide wheel assembly and the column.

10. A plate processing device, characterized in that: It comprises a plate lifting device as described in any one of claims 1 to 9.

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