Flexible plate conveying system based on RFID

Abstract

The invention discloses a flexible plate conveying system based on RFID (Radio Frequency Identification), which is characterized by comprising a single-layer fixed conveying roller bed, a double-layer fixed conveying roller bed, a three-dimensional tray transfer mechanism, a lifting tray transfer roller bed and a skid type plate tray for bearing plates, a plurality of antennas and a plurality of reader-writers used for reading the information of the electronic tags are arranged in the workshop. The roller bed, the plate transferring tray and the three-dimensional tray transferring mechanism are designed in a standardized mode and can be flexibly spliced according to actual process requirements, then the intelligent transferring requirements of plates in different workshops are met, and the machining efficiency and safety are improved; according to the invention, the information of the skid-type plate tray is read based on the RFID system, and the position of the tray is monitored.

Description

Technical Field

[0001] The invention relates to the field of cutting and blanking of metal plates, and in particular to a flexible plate conveying system based on RFID. Background Art

[0002] With the rapid development of industry, the demand for non-standard steel structural parts has increased, and the demand for plate (i.e. steel plate) blanking has also increased. Intelligent production lines supporting plate loading, plate transportation, plate cutting, automatic sorting, etc. will become the development direction of smart factories, especially in the blanking, assembly, welding and other directions of batch structural parts. Intelligent systems are actively promoted. In the traditional structural parts blanking, assembly, and welding industries, the various process links of the production line usually require cranes, forklifts, etc. to transport plates, which is inefficient and prone to safety accidents. Therefore, the development of flexible plate conveyor lines is crucial to realize intelligent blanking and processing of plates. Summary of the invention

[0003] In view of this, the present invention proposes a flexible plate conveying system based on RFID.

[0004] To achieve the above object, the present invention adopts the following technical solutions: The RFID-based flexible sheet conveying system of the present invention comprises a single-layer fixed conveying roller bed, a double-layer fixed conveying roller bed, a three-dimensional pallet transfer mechanism, a lifting pallet transfer roller bed and a skid-type sheet pallet for carrying sheets, wherein the skid-type sheet pallet is provided with an electronic tag, and a plurality of antennas and a plurality of readers and writers for reading the electronic tag information are provided in the workshop; The three-dimensional pallet transferring mechanism includes a first moving mechanism that travels along the rails, a plurality of pairs of first lifting mechanisms arranged on the first moving mechanism, and a second moving mechanism driven to rise and fall by the plurality of pairs of the first lifting mechanisms, the conveying direction of the second moving mechanism being perpendicular to the moving direction of the first moving mechanism, the first moving mechanism including a walking power source and a walking frame driven by the walking power source, the walking frame being a steel structure frame, which includes a plurality of first walking beams and a second walking beam that connects the plurality of first walking beams together, the walking power source being installed on the second walking beam, each of the first walking beams being provided with a driving wheel and a walking wheel, the walking power source being connected to the driving wheel on each first walking beam through a first transmission shaft; the second moving mechanism includes a supporting frame for supporting the pallet and a pallet conveying mechanism arranged on the supporting frame, the supporting frame being fixedly connected to the lifting seats of the plurality of pairs of first lifting mechanisms.

[0005] The beneficial effect is that the present invention standardizes the design of the roller bed, plate transfer pallet and three-dimensional pallet transfer mechanism, which can be flexibly spliced ​​according to actual process requirements, thereby meeting the intelligent transfer needs of plates in different workshops, improving processing efficiency and safety, and eliminating the need for cranes or forklifts to transfer, thereby reducing manual intervention.

[0006] The three-dimensional pallet transfer mechanism of the present invention utilizes a first moving mechanism and a lifting mechanism to achieve X- and Z-direction adjustment of the pallet, and utilizes a second moving mechanism to achieve Y-direction conveyance of the pallet. The pallet can be transferred to different roller beds, thereby achieving flexible transfer of the pallet and improving the transfer efficiency and processing efficiency of the pallet.

[0007] In the present invention, the skid-type plate pallet is used as a transfer tool for the plate, and the skid-type design is used to facilitate the entry and exit of each roller bed, thereby realizing the free flow between different work sections, meeting the transfer requirements of the plate between different work sections, and realizing automatic transfer. Among them, in actual processing, the skid-type plate pallet can be used as a standardized pallet, and its size is designed according to the largest workpiece of the production line. It is infinitely compatible from the largest workpiece downwards. All plates smaller than the largest workpiece can be directly transferred by the conveyor line without the need to add auxiliary devices.

[0008] The present invention reads the information of the skid-type plate pallet based on the RFID system, realizes the monitoring of the pallet position, and lays a foundation for realizing the intelligent monitoring of the plate.

[0009] In a preferred embodiment of the present invention, the first lifting mechanism comprises a vertically arranged lifting power source and a lifting frame covered on the lifting power source, the power output end of the lifting power source is fixedly connected to the lifting seat, and the lifting seat is fixed to the bottom of the lifting frame; the lifting power source is any one of an electric cylinder, a pneumatic cylinder, a hydraulic cylinder and a screw stepping motor; The first lifting mechanism further includes a guide assembly, the guide assembly including a pair of guide posts vertically fixedly connected to the second walking beam, and the two guide posts are located outside the lifting frame; The guide assembly also includes two pairs of upper rollers matched one-to-one with the guide columns, each guide column has a pair of adjacent guide surfaces, and each pair of upper rollers is rollingly matched with the guide surfaces of the guide columns.

[0010] The tops of the two guide posts of each first lifting mechanism are connected by a first connecting rod, and the first connecting rods of each pair of first lifting mechanisms are connected by a second connecting rod.

[0011] The beneficial effect is that in steel production lines, the weight of the pallet itself and the plate is often large, and the lifting power source is preferably an electric cylinder, without the need for an additional gas station or hydraulic station. Of course, for production lines with relatively light loads, a cylinder can also be used as the lifting power source. In addition, in actual processing, the guide column is preferably fixed to a square steel pipe on the walking frame, and the angle between each pair of upper rollers on the lifting frame is 90 degrees. The two upper rollers roll with the two adjacent guide surfaces of the guide column, thereby limiting the movement trajectory of the lifting frame and avoiding twisting during the lifting process.

[0012] The present invention utilizes a first connecting rod (using a square steel pipe) to connect the two guide columns of the first lifting mechanism together, thereby improving the structural stability of the guide columns and avoiding the situation where the upper part tilts due to force; each pair of first lifting mechanisms is fixedly connected together by a second connecting rod, thereby reducing the influence of the tray position adjustment on the lifting mechanism.

[0013] In a preferred embodiment of the present invention, the walking power source is a walking motor and a walking reducer fixedly connected to the second walking beam, the walking reducer is a through-type reducer, and both ends of the output shaft of the walking reducer are connected to the wheel axles of the plurality of driving wheels through the first transmission shaft; The tray conveying mechanism includes a conveying power source, two rows of conveying rollers symmetrically arranged on the supporting frame, two transmission gears are arranged on the roller shaft of each conveying roller, and a plurality of conveying rollers in each row of conveying rollers are connected to each other through a transmission chain wound around the transmission gear; The conveying power source includes a conveying motor and a conveying reducer, at least one driving gear is arranged on the output shaft of the conveying reducer, at least one conveying roller in each row of the conveying rollers is a driving roller, and a transmission gear on the driving roller is connected to the driving gear through a driving chain; the conveying rollers in the two rows of conveying rollers are connected through a second transmission shaft. The beneficial effect is that the present invention adopts a through-type reducer and a first transmission shaft, which can realize the mutual connection between multiple driving wheels and provide power for the transportation of the plate; Since the adjacent conveyor rollers in each column of conveyor rollers are connected to each other through a transmission chain, the transmission connection of each column of conveyor rollers is realized, thereby meeting the stable conveying requirements of the pallet.

[0014] In a preferred embodiment of the present invention, the supporting frame is a steel structure frame, which includes at least two first supporting beams parallel to the second walking beams and a plurality of second supporting beams connecting at least two of the first supporting beams together; the first supporting beam includes two supporting channel steels arranged back to back and a connecting channel steel that fixes the two supporting channel steels together, and the roller shaft of each conveying roller in each row of the conveying rollers is rotationally connected to the two supporting channel steels one by one through a bearing seat, and the two transmission gears on each roller shaft are vertically opposite to the avoidance space between the two supporting channel steels. The beneficial effects are: the supporting frame of the present invention is a steel structure frame to ensure the supporting performance; the first supporting beam adopts two supporting channel steels arranged back to back to provide a certain space for the transmission chain between the conveying rollers, ensuring reliable transmission between the conveying rollers; the plurality of connecting channel steels can realize the fixed connection of each pair of supporting channel steels on the one hand, and can also be fixedly connected to the moving seat, thereby realizing the fixed connection between the supporting frame and the lifting mechanism.

[0015] In a preferred embodiment of the present invention, the skid-type plate pallet comprises a support frame and a support platform arranged in the support frame, the support frame and the support platform are detachably connected, the support platform is formed by a plurality of groups of support grids connected in sequence, each group of support grids comprises a pair of end plates and a plurality of support racks fixedly connected between the two end plates at intervals, the plurality of support racks are arranged along the width direction of the support frame, and the two end plates are respectively fixed on the two long sides of the top of the support frame; A plurality of partitions arranged along the width direction are arranged in intervals in the support frame, and the support frame, the plurality of partitions and the plurality of groups of support grilles enclose a plurality of smoke exhaust channels arranged along the width direction; Each side plate in the width direction of the support frame is provided with an upwardly projecting guide head, and each end of the support frame has two guide heads, which facilitates entry and exit of the roller conveyor line, thereby realizing free flow.

[0016] The beneficial effects are: the skid-type plate pallet of the present invention can not only be used as a transfer pallet for plates, but also as a cutting platform for plates. Each conveying system can be equipped with multiple skid-type plate pallets, thereby realizing assembly line conveying of plates, shortening the waiting time of the cutting machine at the cutting station, and improving the cutting efficiency of steel plates; the pallets have multiple independent smoke exhaust channels, and the exhaust fan can be used to achieve fixed-point smoke exhaust at the cutting site to reduce the impact of cutting smoke; the present invention uses a supporting grid to support the steel plate, and the generated slag and metal chips can fall into the smoke exhaust channel below, which can realize centralized cleaning of slag and metal chips and reduce the impact on the cutting station.

[0017] In a preferred embodiment of the present invention, the support frame includes a bottom frame, an upper frame arranged on the bottom frame through a plurality of first connecting steel pipes, the bottom frame includes a lower long beam, a lower short beam, a bottom steel plate and a second connecting steel pipe that are fixed together, and the lower long beam and the lower short beam are connected together by second connecting steel pipes arranged vertically and horizontally; a refractory layer is provided on the bottom steel plate, and the refractory layer is paved with refractory bricks, and the thickness of the refractory layer is 20mm to 25mm; a wear-resistant plate is provided on the bottom of the bottom frame. The beneficial effect is that the pallet of the present invention has its own refractory layer, and due to the characteristics of the refractory bricks themselves, the slag is not easy to adhere to the refractory bricks after it falls, which reduces the difficulty of slag cleaning and improves the cleaning efficiency. In addition, the refractory layer paved with refractory bricks can also isolate the thermal influence of high-temperature molten materials on the bottom steel plate, thereby extending the service life of the present invention.

[0018] In a preferred embodiment of the present invention, the upper frame is formed by an upper long beam and an upper short beam fixedly connected end to end in sequence, and the upper long beam and the lower long beam, as well as the upper short beam and the lower short beam are connected together through the first connecting steel pipe; a plurality of pairs of reinforcing angle steels are also fixedly connected between the two lower long beams at intervals, and the bottom steel plate is fixedly connected to the corresponding reinforcing angle steels, so as to improve the structural strength and supporting capacity of the support frame and avoid settlement of the bottom steel plate.

[0019] In a preferred embodiment of the present invention, a positioning structure is provided on the upper part of the support frame, and the positioning structure includes a fixing plate provided between adjacent support grids and a plurality of positioning plates corresponding to the support grids one by one, and the two ends of the fixing plate are fixedly connected to the two upper long beams of the support frame, and each group of the positioning plates is provided along the length direction and fixedly connected to the fixing plate, and each positioning plate has a plurality of positioning slots corresponding to the support racks of the support grids one by one. The beneficial effect is that the present invention uses the positioning structure to position the support racks and provide supporting force, and avoids deformation as much as possible.

[0020] In a preferred embodiment of the present invention, the double-layer fixed conveyor roller bed includes a first mounting frame and a lower conveying unit and an upper conveying unit arranged on the first mounting frame; the single-layer fixed conveyor roller bed includes a second mounting frame and a third conveying unit arranged on the second mounting frame, and the upper conveying unit, the lower conveying unit and the third conveying unit are all the same as the structure of the pallet conveying mechanism.

[0021] In a preferred embodiment of the present invention, the lifting type pallet transfer roller bed includes a third mounting frame and a fourth conveying unit, and a plurality of pairs of second lifting mechanisms for driving the fourth conveying unit to lift and lower are arranged in the third mounting frame, and the second lifting mechanism has the same structure as the first lifting mechanism, and the fourth conveying unit has the same structure as the pallet conveying mechanism.

[0022] Compared with the prior art, the advantages of the present invention are embodied in the following points: The present invention standardizes the design of roller beds, plate transfer pallets and three-dimensional pallet transfer mechanisms, which can be flexibly spliced ​​according to actual process requirements, thereby meeting the intelligent transfer requirements of plates in different workshops, improving processing efficiency and safety, and eliminating the need for transportation by cranes or forklifts, thereby reducing manual intervention. The three-dimensional pallet transfer mechanism can realize the X- and Z-direction adjustment of the pallet, and its second moving mechanism realizes the Y-direction conveyance of the pallet, which can transfer the pallet to different roller beds, thereby realizing the flexible transfer of the pallet and improving the transfer efficiency and processing efficiency of the pallet.

[0023] In the present invention, the skid-type plate pallet is used as a transfer tool for the plate. The skid-type design is used to facilitate the entry and exit of each roller bed, thereby realizing the free flow between different work sections, meeting the transfer requirements of the plate between different work sections, and realizing automatic transfer. During processing, the skid-type plate pallet can be used as a standardized pallet. Its size is designed according to the largest workpiece of the production line. It is infinitely compatible from the largest workpiece downward. All plates smaller than the largest workpiece can be directly transferred by the conveyor line without the need to add auxiliary devices.

[0024] The present invention reads the information of the skid-type plate pallet based on the RFID system, realizes the monitoring of the pallet position, and lays a foundation for realizing the intelligent monitoring of the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the present invention.

[0026] Figure 2 It is a structural schematic diagram of the three-dimensional pallet transfer mechanism of the present invention.

[0027] Figure 3 It is a schematic diagram of the first moving mechanism in the present invention.

[0028] Figure 4 It is a structural schematic diagram of the lifting mechanism of the present invention.

[0029] Figure 5 yes Figure 4 Schematic diagram of the rollers and guide posts on the top of the middle lift.

[0030] Figure 6 Schematic diagram of the second moving mechanism of the present invention.

[0031] Figure 7 yes Figure 6 Enlarged view of the middle N part.

[0032] Figure 8 yes Figure 2 Enlarged view of the middle M part.

[0033] Fig. 9It is a connection diagram of the conveyor roller.

[0034] Fig.10 Schematic diagram of the structure of the skid-type plate tray of the present invention (part of the supporting grid is omitted).

[0035] Fig.11 yes Fig.10 BB direction schematic diagram (support platform omitted).

[0036] Fig.12 It is a schematic diagram of one group of supporting grids of the skid-type sheet material pallet described in the present invention.

[0037] Fig.13 It is a partial schematic diagram of the skid-type plate pallet of the present invention.

[0038] Fig.14 This is a diagram showing the relative positions of the skid-type plate tray and the cutting machine described in the present invention.

[0039] Fig.15 It is a schematic diagram of the double-layer fixed conveying roller bed of the present invention.

[0040] Fig.16 yes Fig.15 Side view of.

[0041] Fig.17 It is a schematic diagram of a single-layer fixed conveying roller bed of the present invention.

[0042] Fig.18 It is a vertical view of the lifting type pallet transfer roller bed of the present invention.

[0043] Fig.19 yes Fig.18 Side view of. DETAILED DESCRIPTION

[0044] The following is a detailed description of an embodiment of the present invention in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiment.

[0045] It should be noted that, in the description of the present invention, relational terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0046] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connection" that may appear 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 an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] Combination Figure 1 It can be seen that the present invention proposes a flexible plate conveying system based on RFID, including a single-layer fixed conveying roller bed, a double-layer fixed conveying roller bed, a three-dimensional pallet transfer mechanism, a lifting pallet transfer roller bed and a plurality of skid-type plate pallets for carrying plates. The skid-type plate pallet is provided with an electronic tag, and the workshop is provided with multiple antennas and multiple readers and writers for reading the electronic tag information (of course, it can also be a control system with a human-computer interaction interface) to realize the identification of the pallet, and lay the foundation for realizing the intelligent control of the plate production line. The single-layer fixed conveying roller bed, double-layer fixed conveying roller bed, three-dimensional pallet transfer mechanism, lifting pallet transfer roller bed and skid-type plate pallet of the present invention are all standardized in design, and can be flexibly spliced ​​according to actual process requirements, thereby meeting the intelligent transfer requirements of plates in different production lines, improving processing efficiency and safety, and eliminating the need for transportation by crane or forklift, thereby reducing manual intervention.

[0048] Specifically, combined Figure 1 It can be seen that the present invention has a first section, a second section, and a third section. The first section is provided with a single-layer fixed conveyor roller bed GD1-1 and a three-dimensional pallet transfer mechanism A, as well as a single-layer fixed conveyor roller bed (two or more, convenient for the turnover of pallets with plates and empty pallets) and a double-layer fixed conveyor roller bed (at least one) connected to the three-dimensional pallet transfer mechanism A. The roller beds in the single-layer fixed conveyor roller bed of the first section are respectively recorded as single-layer fixed conveyor roller beds GD1-2 / GD1-4 / GD1-6, and the double-layer fixed conveyor roller bed is recorded as GD2-1. See Figure 2 ; In actual operation, the three-dimensional pallet transfer mechanism A can transfer the pallet conveyed by the single-layer fixed conveyor roller bed GD1-1 to the single-layer fixed conveyor roller bed or the double-layer fixed conveyor roller bed, thereby realizing the flexible transfer of the pallet; The second section is provided with single-layer fixed conveyor roller beds (two or more, convenient for the turnover of pallets with plates and empty pallets) and double-layer fixed conveyor roller beds (at least one) corresponding to the first section. The roller beds in the single-layer fixed conveyor roller beds are respectively denoted as GD1-3 / GD1-5 / GD1-7, and the double-layer fixed conveyor roller bed is denoted as GD2-2; a three-dimensional pallet transfer mechanism B and a double-layer fixed conveyor roller bed GD2-3 connected to the three-dimensional pallet transfer mechanism B are provided at the other end of the roller bed; The third section is equipped with a double-layer fixed conveyor roller bed GD2-4 and a lifting pallet transfer roller bed LT2-1 in sequence. In actual operation, the plate processed by the processing equipment in the second section passes through the three-dimensional pallet transfer mechanism B and the upper layer of the double-layer fixed conveyor roller bed GD2-3, and then enters the upper layer of the double-layer fixed conveyor roller bed GD2-4. After the plate is taken away, it enters the lifting pallet transfer roller bed LT2-1, and the height of the empty pallet is adjusted to make it return from the lower layer of the double-layer fixed conveyor roller bed GD2-4 / GD2-3 to the first section.

[0049] The above-mentioned first section, second section and third section are only one layout of the plate production line, and can be flexibly adjusted according to the process requirements of the plate production line during actual installation.

[0050] The present invention uses two three-dimensional pallet transfer mechanisms A / B in the three working sections to realize the flexible transfer of pallets in three-dimensional space. Taking the three-dimensional pallet transfer mechanism A as an example, its structure is specifically described. Figure 1 It can be seen that the three-dimensional pallet transfer mechanism includes a steel rail A1 (using an I-beam) arranged on the workshop floor, and also includes a first moving mechanism A2 that moves along the steel rail A1, multiple pairs of first lifting mechanisms A3 arranged on the first moving mechanism A2 (four pairs of lifting mechanisms are shown in the figure, of course, they can be flexibly adjusted according to the needs of the production line and the workshop space), and a second moving mechanism A4 driven to lift and lower by multiple pairs of first lifting mechanisms A3; the first moving mechanism A2 moves in the X direction, driving the first lifting mechanism A3 and the second moving mechanism A4 as well as the plates and their pallets on the second moving mechanism A4 to adjust their positions in the X direction; the first lifting mechanism A3 realizes the Z-direction adjustment of the plates and their pallets; the second moving mechanism A4 can adjust the plates and their pallets in the Y direction, realize the flexible transportation of the plates between different processes, improve the transportation efficiency of the plates, and then improve the loading and unloading efficiency of the plates.

[0051] Combination Figure 2-3It can be seen that the first moving mechanism A2 includes a walking power source A2.1 and a walking frame driven by the walking power source A2.1, the walking frame and the walking power source A2.1 are connected by transmission, and the walking power source A2.1 provides walking power; the walking frame is a steel structure frame, which includes a plurality of first walking beams A2.2 (arranged in the X direction) and a second walking beam A2.3 (arranged in the Y direction) connecting the plurality of first walking beams A2.2 together, each of the first walking beams A2.2 is installed with a driving wheel A2.4 (i.e., a driving walking wheel A2.5) and a walking wheel A2.5 that cooperate with the rail A1, and the walking wheel A2.5 and the driving wheel A2.4 are both stuck on the rail A1; The walking power source A2.1 is installed on one of the second walking beams A2.3, and includes a walking motor A2.1a and a walking reducer A2.1b connected to it. The walking reducer A2.1b is a through-type reducer (i.e., it has two output ends). Each output end of the walking reducer A2.1b connects the axles of multiple driving wheels A2.4 together through multiple first transmission shafts A2.6 (two of the driving wheels A2.4 can be directly connected to the walking reducer A2.1b, and the driving wheels A2.4 can also be connected through the first transmission shaft A2.6), so that the walking frame is subjected to balanced force, thereby realizing smooth linear reciprocating movement of the walking frame.

[0052] During actual installation, the first transmission shaft A2.6 and the axle of the driving wheel A2.4, as well as the output end of the first transmission shaft A2.6 and the travel reducer A2.1b are connected through couplings. Figure 2 .

[0053] Combination Figure 2 and Figure 4-5 It can be seen that the first lifting mechanism A3 includes a vertically arranged lifting power source A3.1 and a lifting frame A3.2 covered on the lifting power source A3.1 (the present invention preferably does not require an electric cylinder with a gas station and a hydraulic station), that is, the electric cylinder is located in the lifting frame A3.2 (steel structure frame); a lifting seat A3.3 is fixedly connected to the power output end of the electric cylinder, one end of the lifting seat A3.3 extends to the bottom of the lifting frame A3.2 and is fixedly connected to the lifting frame A3.2, and the lifting frame A3.2 and the lifting seat A3.3 are lifted and lowered by the electric cylinder; Combination Figure 4-5It can be seen that the first lifting mechanism A3 also includes a guide assembly, which includes a pair of guide columns A3.4 (square steel pipes) vertically fixed to the second walking beam A2.3 and two pairs of upper rollers A3.5a that match the guide columns A3.4 one by one. The two guide columns A3.4 are located on the outside of the lifting frame A3.2. Each guide column A3.4 has a pair of adjacent guide surfaces, and each pair of upper rollers A3.5a rolls with the guide surfaces of the guide columns A3.4. Among them, since the angle between the guide surfaces of the guide columns A3.4 is 90 degrees, the angle of the central axis of each pair of upper rollers A3.5a is correspondingly 90 degrees, and each pair of upper rollers A3.5a clamps the guide columns A3.4, thereby realizing the stable lifting of the lifting frame A3.2; Combination Figure 4-5 It can be seen that each second walking beam A2.3 is fixedly connected with a plurality of bases A3.6 at intervals, the bottoms of the two guide columns A3.4 of each first lifting mechanism A3 are fixed on the base A3.6, and the bottom of the electric cylinder is fixed on the base A3.6; Figure 3 It can be seen that the top of the lifting frame A3.2 is symmetrically provided with mounting seats A3.7, and each mounting seat A3.7 is fixedly connected with a pair of upper rollers A3.5a, wherein the wheel axle of the upper roller A3.5a is fixed on the mounting seat A3.7 through a vertical plate, so as to realize the fixed installation of the upper roller A3.5a. In order to ensure the smooth lifting of the lifting seat A3.3, two pairs of lower rollers A3.5b are also symmetrically provided at the bottom of the lifting frame A3.2, and the two pairs of lower rollers A3.5b are respectively matched with the guide column A3.4. The combination of the upper roller and the lower roller A3.5b can limit the upper and lower positions of the lifting frame A3.2, ensure the stable lifting of the lifting frame, and further ensure the stable lifting of the lifting seat A3.3.

[0054] In actual operation, since the electric cylinder is fixedly connected to the lifting seat A3.3, the electric cylinder can be powered on to drive the lifting seat A3.3 to rise and fall. During the lifting process, the upper roller A3.5a on the lifting frame A3.2 moves along the roller of the guide column A3.4 to ensure the smooth lifting of each lifting seat A3.3. In addition, when adjusting the height, multiple electric cylinders work synchronously to achieve the smooth lifting of the second moving mechanism A4. Of course, in actual installation, if the workshop conditions allow and on the basis of meeting the lifting requirements, a linear power source such as a cylinder or a hydraulic cylinder can also be used to replace the electric cylinder of the present invention.

[0055] Combination Figure 2 , 4 It can be seen that the tops of the two guide columns A3.4 of each first lifting mechanism A3 are connected by a first connecting rod A3.8, which improves the structural stability of the guide column A3.4 and avoids the upper part tilting due to force; the first connecting rods A3.8 of each pair of first lifting mechanisms A3 are connected by a second connecting rod A3.9, which reduces the impact of the tray position adjustment on the first lifting mechanism A3.

[0056] In actual processing, the first connecting rod A3.8 and the second connecting rod A3.9 are both made of steel pipes. Both ends of the second connecting rod A3.9 are provided with fixed steel plates, which are fixedly connected to the first connecting rod A3.8 by bolts.

[0057] Combination Figure 2 , 6 -9 It can be seen that the second moving mechanism A4 can realize the Y-direction adjustment of the plate and its pallet. The second moving mechanism A4 includes a supporting frame A4.1 for supporting the pallet and a pallet conveying mechanism arranged on the supporting frame A4.1. The supporting frame A4.1 is fixedly connected to a plurality of lifting seats A3.3 of the first lifting mechanism A3; the pallet conveying mechanism includes a conveying power source A4.2, two rows of conveying rollers A4.3 (arranged at intervals in the Y direction) symmetrically arranged on the supporting frame A4.1, and two transmission gears A4.4 are arranged on the roller shaft of each conveying roller A4.3. The multiple conveying rollers A4.3 in each row of conveying rollers are connected to each other in pairs through a plurality of transmission chains A4.5, thereby realizing the transmission connection of each row of conveying rollers A4.3 to meet the stable conveying requirements of the pallet; the two rows of conveying rollers A4.3 are symmetrically arranged, and the two rows of conveying rollers A4.3 are connected one by one through the second transmission shaft A4.6 to realize the transmission connection of the two rows of conveying rollers A4.3, thereby realizing the synchronous rotation of the two rows of conveying rollers A4.3.

[0058] Combination Figure 2 It can be seen that the conveying power source A4.2 includes a conveying motor and a conveying reducer. Two spaced driving gears are arranged on the output shaft of the conveying reducer. The two conveying rollers A4.3 in each column of conveying rollers A4.3 are driving rollers. A transmission gear A4.4 on the two driving rollers is respectively connected to the two driving gears through a driving chain A4.7 to achieve the transmission connection between the conveying power source A4.2 and the conveying rollers A4.3. After the conveying power source A4.2 is powered on and started, the conveying power source A4.2 drives the driving gear to rotate, and drives the driving roller to rotate through the driving chain A4.7. The driving roller drives the conveying roller A4.3 in the column to rotate through the transmission chain A4.5. Since the two columns of conveying rollers A4.3 are connected one by one through the second transmission shaft A4.6, the synchronous operation of the two columns of conveying rollers A4.3 is achieved, providing power for the Y-direction movement of the pallet, and realizing the Y-direction movement of the pallet.

[0059] During actual installation, the power transmission source A4.2 is installed at the middle position of the supporting frame A4.1 in the Y direction to achieve power transmission. Of course, the power transmission source A4.2 can also be installed at both ends of the supporting frame A4.1.

[0060] Combination Figure 6-8It can be seen that the supporting frame A4.1 is a steel structure frame, which includes two first supporting beams A4.1b parallel to the second walking beam A2.3 and multiple second supporting beams A4.1a (steel plates or steel pipes can be used) connecting the two first supporting beams A4.1b together. The first supporting beam A4.1b includes two supporting channel steels A4.1b1 arranged back to back and a connecting channel steel A4.1b2 that fixes the two supporting channel steels A4.1b1 together, wherein the position of some connecting channel steels A4.1b2 corresponds to the first lifting mechanism A3, and the first supporting beam A4.1b is fixedly connected to the lifting seat A3.3 of the first lifting mechanism A3 through the connecting channel steel A4.1b2, thereby realizing the fixed installation between each first lifting mechanism A3 and the supporting frame A4.1. In addition, the roller shaft of the conveying roller A4.3 is rotationally connected to the two supporting channel steels A4.1b1 one by one through the bearing seat, and the two transmission gears A4.4 on each roller shaft are opposite to the avoidance space between the two supporting channel steels A4.1b1. The two supporting channel steels A4.1b1 are arranged at an interval to provide a certain space for the transmission chain A4.5 between the conveying rollers A4.3.

[0061] The working process of the three-dimensional pallet transfer mechanism A is as follows: the travel power source drives the multi-dimensional transfer system to move to the output end of the single-layer fixed conveyor roller bed GD1-1, the first lifting mechanism A3 adjusts the height of the supporting frame A4.1 to make it consistent with the height of the single-layer fixed conveyor roller bed GD1-1, and then starts the conveying power source A4.2, which drives the two rows of conveyor rollers A4.3 to rotate synchronously, so that the pallet smoothly enters the supporting frame A4.1; then the power source is used to drive the multi-dimensional transfer system to move to the single-layer fixed conveyor roller bed GD1-2 / GD1-4 / GD1-6 or the double-layer fixed conveyor roller bed GD2-1, so that it smoothly enters the second work section; Similarly, when the empty pallet returns, the three-dimensional pallet transfer mechanism A moves the empty pallet on the single-layer fixed conveyor roller bed GD1-2 / GD1-4 / GD1-6 or the double-layer fixed conveyor roller bed GD2-1 to the single-layer fixed conveyor roller bed GD1-1 to transfer another plate to realize the assembly line operation of the plate.

[0062] In actual production, the present invention can be equipped with multiple sled-type plate trays. Figure 10-14It can be seen that the sled-type plate pallet includes a support frame F1 and a support platform arranged in the support frame F1, the support frame F1 and the support platform are detachably connected, and the support platform is formed by a plurality of groups of support grids F2 arranged in the support frame F1 connected in sequence, each group of support grids F2 includes a pair of end plates F2.1 and a plurality of support racks F2.2 fixedly connected between the two end plates F2.1 at intervals, the plurality of support racks F2.2 are arranged along the width direction of the support frame F1, the two end plates F2.1 are respectively fixed on the two long sides of the top of the support frame F1, and the end plates F2.1 and the support frame F1 are connected by bolts; the present invention designs the support platform into a plurality of groups of support grids F2, the support grids F2 are independently installed, and the disassembly and assembly are simple and convenient, thereby realizing partial replacement of the support platform and reducing maintenance costs; in addition, the present invention uses the support grids F2 formed by connecting the support racks F2.2 to support the steel plate, and the slag and metal chips generated during the cutting process enter the support frame F1 through the gaps between the support racks F2.2, thereby solving the slag accumulation problem; A plurality of partitions F1.13 arranged along the width direction are arranged in intervals in the support frame F1. The support frame F1, the plurality of partitions F1.13 and the plurality of groups of support grilles F2 form a plurality of smoke exhaust passages F arranged along the width direction.

[0063] During actual installation, the fan F4.1 and the exhaust hood F4.2 can be installed on the walking truss 4.4 of the cutting machine at the cutting station. The fan F4.1 and the exhaust hood F4.2 are located on both sides of the exhaust channel F, and the exhaust hood F4.2 is connected to the bellows 4.3 on the ground. During actual cutting, since the walking truss 4.4 of the cutting machine can move along the rails, the fan F4.1 and the exhaust hood F4.2 can be moved so that they are always located on both sides of the exhaust channel F at the cutting operation site, so that the smoke and particles generated during the cutting process can be quickly sucked away, effectively reducing the cutting smoke and optimizing the working environment. When the sled-type plate tray moves to the cutting station, the fan is started to quickly suck away the smoke and particles generated during the cutting process, effectively reducing the cutting smoke and optimizing the working environment.

[0064] Combination Fig.10 It can be seen that the support frame F1 of the present invention adopts a rectangular steel pipe as the main frame, which includes a bottom frame and an upper frame arranged on the bottom frame through a plurality of first connecting steel pipes F1.1. The bottom frame includes a lower long beam F1.3 and a lower short beam F1.4 that are fixed together and a second connecting steel pipe F1.12 arranged between the lower long beam F1.3 and the lower short beam F1.4 to ensure the structural strength of the bottom frame. The bottom frame also includes a bottom steel plate F1.5, on which a fire-resistant layer F1.9 is arranged; the upper frame is formed by fixing the upper long beam F1.2 and the upper short beam F1.6 end to end in sequence, and the upper long beam F1.2, the upper short beam F1.6, the lower long beam F1.3 and the lower short beam F1.4 all adopt rectangular steel pipes to improve the supporting performance.

[0065] Combination Fig.11 It can be seen that the partition corresponding to the second connecting steel pipe F1.12 is a fixed partition, and the other partitions are detachable partitions. Multiple pairs of mounting plates can be installed between the upper long beam and the lower long beam, and the two ends of the detachable partitions are fixed to the mounting plates by bolts for easy replacement; the upper long beam F1.2 and the lower long beam F1.3, and the upper short beam F1.6 and the lower short beam F1.4 are fixed together by multiple first connecting steel pipes F1.1; multiple pairs of reinforcing angle steels F1.8 are also fixedly connected between the two lower long beams F1.3, and the bottom steel plate F1.5 is fixedly connected to the corresponding reinforcing angle steel F1.8. The reinforcing angle steel F1.8 can prevent the bottom steel plate F1.5 from sinking during use.

[0066] Combination Figure 10-11 and Fig.13 It can be seen that a positioning structure is also provided on the upper part of the support frame F1, and the positioning structure includes a fixed plate F1.14 (parallel to the upper short beam) provided between adjacent support grids F2 and multiple groups of positioning plates F1.16 (parallel to the upper long beam) corresponding to the support grids F2. The two ends of each pair of positioning plates F1.16 are correspondingly fixed on the two upper long beams F1.2 of the support frame F1, and each group of positioning plates F1.16 is fixedly connected to the fixed plate F1.14. Each positioning plate F1.16 has multiple positioning slots corresponding to the support racks F2.2 of the support grids F2. During installation, the support grid F2 can be placed in the support frame F1, and its support racks F2.2 can be clamped on the positioning plate F1.16, and then the end plates F2.1 of the support grid F2 are respectively fixedly connected to the upper long beams F1.2. Multiple groups of support grids F2 are sequentially fixedly connected in the support frame F1 to realize the installation of the support platform on the support frame F1, which can be used to support steel plates. During cutting, since the support grid F2 has a gap, the slag and debris generated by cutting fall onto the refractory layer F1.9 below, avoiding falling onto the cutting station, thus reducing the difficulty of cleaning the cutting station. The refractory layer F1.9 has the characteristic of not adhering slag, which can achieve rapid cleaning of slag and reduce the difficulty of cleaning; during the cutting process, since the cutting machine is movable, it can drive the fan F4.1 and the exhaust hood F4.2 to move synchronously, so that the fan F4.1 and the exhaust hood F4.2 are located on both sides of the exhaust channel F corresponding to the cutting position, and quickly absorb the smoke and particles generated during the cutting process, effectively reducing the cutting smoke.

[0067] During actual installation, the refractory layer F1.9 is preferably constructed of refractory bricks and refractory mud, and the thickness of the refractory layer F1.9 is 15 mm to 40 mm, which can not only reduce the difficulty of cleaning the slag, but also isolate the thermal influence of the high-temperature molten material on the bottom steel plate F1.5, thereby extending the service life of the support frame F1 of the present invention; Since the bottom frame has a lower long beam F1.3 and a lower short beam F1.4 at a certain height, the refractory layer F1.9 is located inside the bottom frame, which can effectively prevent slag from falling during transportation. In addition, the support rack F2.2 is preferably made of high-strength and high-temperature resistant materials (such as alloy materials) to reduce the impact of high temperature on the support rack F2.2 and ensure the support performance of the support rack F2.2.

[0068] Combination Figure 10-11 It can be seen that a horizontal wear-resistant plate F1.7 is fixedly connected to the bottom of the bottom frame; an upward-protruding guide head F1.11 is provided on each side plate F1.10 in the width direction of the support frame, so that the support frame is similar to a sled structure, which is convenient for entering and exiting the roller conveyor line, thereby realizing the free flow of the present invention on the production line.

[0069] Combination Figure 15-16 It can be seen that the double-layer fixed conveyor roller bed includes a first mounting frame GD2.1 and a lower conveying unit GD2.2 and an upper conveying unit GD2.3 arranged on the first mounting frame GD2.1. The lower conveying unit GD2.2 and the upper conveying unit GD2.3 are both double-row roller conveying structures with the same structure as the second moving mechanism. Generally, the upper layer is used to convey pallets with plates, and the lower layer is used for the circulation of empty pallets. Fig.18 The single-layer fixed conveying roller bed includes a second mounting frame GD1.1 and a third conveying unit GD1.2 arranged on the second mounting frame. The third conveying unit GD1.2 is a double-row roller conveying structure to realize the flow of pallets between different work sections.

[0070] Combination Figure 18-19 It can be seen that the lifting pallet transfer roller bed includes a third mounting frame LT1.1 and a fourth conveying unit LT1.2. A plurality of pairs of second lifting mechanisms LT1.3 for driving the fourth conveying unit LT1.2 to lift and lower are arranged in the third mounting frame LT1.1. The second lifting mechanism LT1.3 has the same structure as the first lifting mechanism. The fourth conveying unit LT1.2 also adopts a double-row roller conveying structure to realize smooth conveying of the pallet.

[0071] During actual installation, the third mounting frame LT1.1 can be equipped with travel wheels and travel power to make it travel along the rails in the same direction as the fourth conveying unit to realize the transfer of pallets. Figure 1 .

[0072] During actual installation, proximity switches can be installed at both ends of each single-layer fixed conveyor roller bed and at both ends of each layer of the double-layer fixed conveyor roller bed to accurately obtain the position of the pallet and achieve precise transportation.

[0073] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Therefore, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A flexible sheet material conveying system based on RFID, characterized in that: It includes a single-layer fixed conveyor roller bed, a double-layer fixed conveyor roller bed, a three-dimensional pallet transfer mechanism, a lifting pallet transfer roller bed and a skid-type plate pallet for carrying plates, the skid-type plate pallet is provided with an electronic tag, and a workshop is provided with multiple antennas and multiple readers and writers for reading the electronic tag information; The three-dimensional pallet transferring mechanism includes a first moving mechanism that travels along the rails, a plurality of pairs of first lifting mechanisms arranged on the first moving mechanism, and a second moving mechanism driven to rise and fall by the plurality of pairs of the first lifting mechanisms, the conveying direction of the second moving mechanism being perpendicular to the moving direction of the first moving mechanism, the first moving mechanism including a walking power source and a walking frame driven by the walking power source, the walking frame being a steel structure frame, which includes a plurality of first walking beams and a second walking beam that connects the plurality of first walking beams together, the walking power source being installed on the second walking beam, each of the first walking beams being provided with a driving wheel and a walking wheel, the walking power source being connected to the driving wheel on each first walking beam through a first transmission shaft; the second moving mechanism includes a supporting frame for supporting the pallet and a pallet conveying mechanism arranged on the supporting frame, the supporting frame being fixedly connected to the lifting seats of the plurality of pairs of first lifting mechanisms.

2. The RFID-based flexible sheet material conveying system according to claim 1, characterized in that: The first lifting mechanism comprises a vertically arranged lifting power source and a lifting frame covered on the lifting power source, the power output end of the lifting power source is fixedly connected to the lifting seat, and the lifting seat is fixed to the bottom of the lifting frame; the lifting power source is any one of an electric cylinder, an air cylinder, a hydraulic cylinder and a screw stepping motor; The first lifting mechanism further includes a guide assembly, the guide assembly including a pair of guide posts vertically fixedly connected to the second walking beam, and the two guide posts are located outside the lifting frame; The guide assembly also includes two pairs of upper rollers matched one-to-one with the guide posts, each guide post has a pair of adjacent guide surfaces, and each pair of upper rollers is rollingly matched with the guide surfaces of the guide posts; The tops of the two guide posts of each first lifting mechanism are connected by a first connecting rod, and the first connecting rods of each pair of first lifting mechanisms are connected by a second connecting rod.

3. The RFID-based flexible sheet material conveying system according to claim 1, characterized in that: The walking power source is a walking motor and a walking reducer fixedly connected to the second walking beam, the walking reducer is a through-type reducer, and both ends of the output shaft of the walking reducer are connected to the wheel axles of the plurality of driving wheels through the first transmission shaft; The tray conveying mechanism includes a conveying power source, two rows of conveying rollers symmetrically arranged on the supporting frame, two transmission gears are arranged on the roller shaft of each conveying roller, and a plurality of conveying rollers in each row of conveying rollers are connected to each other through a transmission chain wound around the transmission gear; The conveying power source includes a conveying motor and a conveying reducer. At least one driving gear is arranged on the output shaft of the conveying reducer. At least one conveying roller in each column of the conveying rollers is a driving roller. A transmission gear on the driving roller is connected to the driving gear through a driving chain. The conveying rollers in the two columns of conveying rollers are connected through a second transmission shaft.

4. The RFID-based flexible sheet material conveying system according to claim 3 is characterized in that: The supporting frame is a steel structure frame, which includes at least two first supporting beams parallel to the second walking beams and multiple second supporting beams connecting at least two of the first supporting beams together; the first supporting beam includes two supporting channel steels arranged back to back and a connecting channel steel that fixes the two supporting channel steels together, the roller shaft of each conveying roller in each row of the conveying rollers is rotatably connected to the two supporting channel steels one by one through a bearing seat, and the two transmission gears on each roller shaft are opposite to the avoidance space between the two supporting channel steels up and down.

5. The RFID-based flexible sheet material conveying system according to claim 1, characterized in that: The skid-type plate tray comprises a support frame and a support platform arranged in the support frame, the support frame and the support platform are detachably connected, the support platform is formed by a plurality of groups of support grids connected in sequence, each group of support grids comprises a pair of end plates and a plurality of support racks fixedly connected between the two end plates at intervals, the plurality of support racks are arranged along the width direction of the support frame, and the two end plates are respectively fixed on the two long sides of the top of the support frame; A plurality of partitions arranged along the width direction are arranged in intervals in the support frame, and the support frame, the plurality of partitions and the plurality of groups of support grilles enclose a plurality of smoke exhaust channels arranged along the width direction; Each side plate in the width direction of the support frame is provided with an upwardly projecting guide head.

6. The RFID-based flexible sheet material conveying system according to claim 1, characterized in that: The support frame includes a bottom frame, an upper frame arranged on the bottom frame through a plurality of first connecting steel pipes, the bottom frame includes a lower long beam, a lower short beam, a bottom steel plate and a second connecting steel pipe that are fixed together, and the lower long beam and the lower short beam are connected together through second connecting steel pipes arranged vertically and horizontally; The bottom steel plate is provided with a refractory layer, which is paved with refractory bricks and has a thickness of 20 mm to 25 mm; the bottom of the bottom frame is provided with a wear-resistant plate.

7. The RFID-based flexible sheet material conveying system according to claim 6, characterized in that: The upper frame is formed by connecting an upper long beam and an upper short beam end to end in sequence, and the upper long beam and the lower long beam, and the upper short beam and the lower short beam are connected together through the first connecting steel pipe; a plurality of pairs of reinforcing angle steels are also fixedly connected between the two lower long beams at intervals, and the bottom steel plate is fixedly connected to the corresponding reinforcing angle steels.

8. The RFID-based flexible sheet material conveying system according to claim 5, characterized in that: A positioning structure is provided on the upper part of the support frame, and the positioning structure includes a fixing plate arranged between adjacent supporting grids and a plurality of groups of positioning plates corresponding one-to-one to the supporting grids. The two ends of the fixing plate are fixedly connected to the two upper long beams of the support frame, and each group of the positioning plates is arranged along the length direction and fixedly connected to the fixing plate, and each positioning plate has a plurality of positioning slots corresponding one-to-one to the supporting racks of the supporting grids.

9. The RFID-based flexible sheet material conveying system according to claim 2, characterized in that: The double-layer fixed conveying roller bed includes a first mounting frame and a lower conveying unit and an upper conveying unit arranged on the first mounting frame; the single-layer fixed conveying roller bed includes a second mounting frame and a third conveying unit arranged on the second mounting frame, and the upper conveying unit, the lower conveying unit and the third conveying unit have the same structure as the pallet conveying mechanism.

10. The RFID-based flexible sheet material conveying system according to claim 1, characterized in that: The lifting type pallet transfer roller bed includes a third mounting frame and a fourth conveying unit. The third mounting frame is provided with a plurality of pairs of second lifting mechanisms for driving the fourth conveying unit to lift and lower. The second lifting mechanism has the same structure as the first lifting mechanism, and the fourth conveying unit has the same structure as the pallet conveying mechanism.

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