Flexible feeding device for vacuum plain panel processing and feeding method

Abstract

The invention relates to the technical field of plain plate separate feeding, in particular to a flexible feeding device for vacuum plain plate machining and a feeding method.The flexible feeding device comprises an annular conveyor, a servo driver arranged on one side of the annular conveyor and a rotating column coaxially fixed to the top end of an output shaft of the servo driver; according to the flexible feeding device, after plain plates stacked according to a fixed specification in an automatic stereoscopic warehouse are stably forked and placed at the upper end of a stacking plate, through the arrangement and cooperative operation of the stack separation assembly and the plain plate feeding assembly, when the plain plates with rough surfaces are sucked and fed, the plain plates with rough surfaces can be sucked and fed through the flexible feeding device; according to the unstacking device, stacked plain plates can be sequentially and automatically extracted and lifted one by one, unstacking treatment is carried out, the bottoms of the single plain plates can be conveniently gathered by the bearing frames in the follow-up process, the plain plates do not have the risk of falling off in the transfer process through gathering and bearing of the C-shaped bearing frames and adsorption of the multiple suction cups, and the unstacking efficiency is improved. And the overall feeding safety is guaranteed, and the overall operation stability is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of veneer sheet separation and feeding, and particularly to a flexible feeding device and a feeding method for vacuum veneer processing. Background Technique

[0002] In the modern furniture manufacturing industry, vacuum veneer has become the core basic material for customized furniture production due to its good processing performance and rich veneer plasticity. From the production of wardrobes, cabinets to bookcases, the cabinets and cabinet doors can be made with vacuum veneer. Through processes such as veneering and painting, diverse color and texture effects can be achieved to meet the personalized needs of consumers. However, in the automated processing process of vacuum veneer, the technical defects in the feeding link have gradually become the key factors restricting the improvement of production efficiency and product quality. Currently, the feeding operation of vacuum veneer generally adopts a combination of automation and semi-automation. First, a forklift is used to transfer the veneer stacked in a fixed specification in the automated stereoscopic warehouse to the pallet. Subsequently, through a feeding device equipped with a flexible adsorption component, the veneer stack is unstacked layer by layer and sucked for feeding. Although this technical path has achieved basic automated operations, significant adaptability problems have emerged in practical applications.

[0003] The surface materials of vacuum veneer in the furniture industry are complex and diverse. Particleboard and solid wood board are the most representative. The surface of particleboard is rough and porous, while the surface of solid wood board is relatively smooth and flat. Existing flexible adsorption components are difficult to meet the adsorption requirements of different materials. When adsorbing particleboard, due to its uneven surface, the adsorption component cannot be closely attached to the board surface, easily resulting in air leakage, which causes a significant decrease in adsorption force, making the veneer have a risk of falling off during transportation, seriously threatening the feeding safety. In addition, after the existing feeding device completes the unstacking and feeding of a stack of veneer, it lacks the function of automatically cleaning the surface of the supporting table. During the feeding process, the sawdust, dust, and other impurities falling off from the veneer surface will remain on the surface of the supporting table (such as the pallet). If not cleaned in time, these residual impurities will scratch and wear the bottom surface of the newly placed veneer during the subsequent stacking and feeding of veneer. The lack of this cleaning function forces the operator to spend extra time and effort on manual cleaning, increasing the labor cost and also reducing the overall production efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a flexible feeding device and a feeding method for vacuum veneer processing, so as to solve the problems in the above-mentioned background technique that the existing flexible adsorption components are difficult to meet the adsorption requirements of different materials, resulting in a significant decrease in adsorption force, making the veneer have a risk of falling off during transportation, seriously threatening the feeding safety. In addition, after the existing feeding device completes the unstacking and feeding of a stack of veneer, it lacks the function of automatically cleaning the surface of the supporting table.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a flexible feeding device for vacuum blank plate processing, comprising a ring conveyor, a servo drive motor arranged on one side of the ring conveyor, and a rotating column coaxially fixed to the top end of the output shaft of the servo drive motor, a fixed frame is provided on one side of the servo drive motor, and a positioning frame which is L-shaped when viewed from above is longitudinally provided at the top end of the corner of the fixed frame, a stacking assembly is provided on one side of the fixed frame, a stacking plate is provided on the outside of the top end of the fixed frame located between the positioning frames, an auxiliary frame is fixedly installed on one side of the top end of the rotating column, a cylinder is longitudinally fixed on the bottom end of the auxiliary frame on the side away from the rotating column, a mounting box is fixedly installed on the bottom end of the cylinder, a blank plate feeding assembly is provided on one side of the bottom end of the mounting box, a supporting frame is provided on the outside of one side of the mounting box close to between each two positioning frames, and an exhaust cleaning assembly is provided on one side of the bottom end of the stacking plate.

[0006] Furthermore, the stacking and separating assembly includes a threaded rod and a plurality of separating blocks, the threaded rod is longitudinally rotated and engaged and installed in the middle position of the top wall of the fixed frame, and the plurality of separating blocks are sequentially fitted on the outside of the top end of the positioning frame on the corresponding side, and the plurality of separating blocks are L-shaped when viewed from above, and a threaded block is provided on the outside of the threaded rod through a threaded connection, and a sprocket 2 is fixedly installed on the bottom end of the threaded rod, and a sprocket 1 is fixed through the side of the rotating column close to the sprocket 2, and a chain is provided for transmission connection between the sprocket 1 and the sprocket 2.

[0007] Furthermore, a connecting frame is fixedly installed on the outside of the threaded block close to the positioning frame, a liquid collecting cylinder is fixedly installed through the fixing frame close to the top end of the positioning frame, a piston rod is longitudinally fixedly installed on the outside of the connecting frame close to the top end of the liquid collecting cylinder, the piston end of the piston rod is slidingly sealed and installed inside the liquid collecting cylinder on the corresponding side, a mounting block is penetrated on the outside of the piston rod close to the connecting frame, and interference rods are longitudinally fixedly installed on both sides of the top end of the mounting block, the top end of the interference rod is slidably installed on the outside of the top end of the positioning frame, and the top through-end of the interference rod is fixed to the outer side of the bottom end of the spreading block.

[0008] Furthermore, a guide cavity is provided inside the separating block, and a plurality of limiting holes are evenly spaced through the inside of one side of the separating block close to the middle position of the stacking plate. A piston thimble is provided inside each of the limiting holes for sliding sealing. A reset spring is provided on the outside of one side of the resistance rod located at the top of the mounting block, and both ends of the reset spring are respectively installed on one side of the inner wall of the top of the mounting block and the top of the fixing frame.

[0009] Furthermore, a stretch hose is fixed through the top end of each of the liquid collecting cylinders, and the top end of the stretch hose passes through the interior of the positioning frame and is fixedly installed in the diversion cavity.

[0010] Further, the raw board feeding assembly includes a stepping motor and a turntable. The stepping motor is fixedly installed inside the installation box, and the turntable is fixedly installed outside the output end of the stepping motor. Guide frames are fixedly installed on the outer side of the installation box close to the supporting bracket. Support frames are fixedly installed on the outer side of one side of each guide frame. A number of suction cups are fixedly installed at equal intervals on one side of each support frame. A moving plate is horizontally and slidably engaged and installed through the inner side of one side of each support frame. An arc-shaped groove is provided through the inner side of the turntable close to the moving plate.

[0011] Further, positioning columns are fixedly installed on the outer side of one side of each moving plate close to the arc-shaped groove. One end of each positioning column is installed through the inner side of one side of the arc-shaped groove. The ends of the moving plates far from the positioning columns are fixedly installed with the top ends of the corresponding supporting brackets through brackets. The side view of the supporting bracket is C-shaped.

[0012] Further, a limiting cylinder is fixedly installed at the top end of the fixed frame. A piston column is slidably and sealingly installed inside the limiting cylinder. The top end of the piston column is fixedly installed with the bottom end of the palletizing board. An air pump is fixedly provided on one side of the top end of the fixed frame. The output end of the air pump is installed through the inner side of one side of the bottom end of the limiting cylinder. The exhaust cleaning assembly includes a spring exhaust pipe and a spray head pipe. One end of the spring exhaust pipe is fixedly installed through the inner side of one side of the bottom end of the limiting cylinder. The spray head pipe is horizontally fixedly installed on the outer side of one side of the palletizing board through a bracket. The output end of the spring exhaust pipe is conductively fixed with the input end of the spray head pipe. A sealing valve is conductively fixed inside one side of the spring exhaust pipe. The top end of the sealing valve is fixed on the outer side of one side of the bottom end of the palletizing board.

[0013] Further, a gear is fixedly installed on the outer side of one end of the valve stem of the sealing valve. A sliding seat is longitudinally and fixedly penetrated through the inner side of the palletizing board close to the gear. A rack is longitudinally slidably engaged and installed on one side of the sliding seat. One side of the rack is meshed and connected with one side of the gear. A pressing plate is fixed at the top end of the rack. A guiding rod is fixed at the bottom end of the rack. The bottom end of the guiding rod is slidably installed through the outer side of one side of the bottom end of the sliding seat. A compression spring is sleeved on the outer side of one side of the guiding rod. The two ends of the compression spring are respectively installed on the bottom wall of the sliding seat and the bottom surface of one side of the rack.

[0014] The present invention also provides a feeding method for a flexible feeding device for vacuum raw board processing, including the following steps: S1: First, use an electric forklift to smoothly fork and take the raw boards stacked in a fixed specification in the automated three-dimensional warehouse. After the forklift travels to the feeding station, precisely control the height through the hydraulic lifting device, and horizontally place the raw board stack on the upper end of the palletizing board; S2: Subsequently, through the operation of the servo drive, the rotating column, and the raw board feeding assembly, the raw boards in the stack are stably sucked, and then transferred to the top of the annular conveyor, thus completing the feeding operation during the vacuum raw board processing; S3: When sucking and feeding the raw boards with rough surfaces, at this time, through the operation of the stack separating assembly, the raw boards in the stack are extracted and lifted one by one, so as to facilitate the subsequent gathering of the supporting brackets to support the bottom of the single raw board, and complete the sucking and feeding of the rough raw boards; S4: When the feeding of a stack of raw boards at the upper end of the pallet is completed, at this time, since there is no longer the extrusion force of the raw boards at the top of the pallet, the exhaust cleaning assembly is triggered to operate automatically, so as to blow and clean the impurities on the stacking surface of the pallet, and avoid damaging the bottom surface of the raw board due to the residual impurities at the top of the pallet when the subsequent raw boards are stacked and fed.

[0015] Compared with the prior art, the beneficial effects of the present invention are: After the raw boards stacked in a fixed specification in the automated stereoscopic warehouse are smoothly forklifted and placed on the upper end of the pallet by a forklift, through the setting and coordinated operation of the stack separating assembly and the raw board feeding assembly, when the present flexible feeding device sucks and feeds the raw boards with rough surfaces, it can orderly and automatically extract and lift the raw boards in the stack one by one for unstacking treatment, so as to facilitate the subsequent gathering of the supporting brackets to support the bottom of the single raw board. Through the gathering and supporting of multiple C-shaped supporting brackets and the adsorption of several suction cups, there is no risk of falling off during the transfer of the raw boards, ensuring the overall feeding safety and the overall operation stability; Through the setting and operation of the exhaust cleaning assembly, when the present flexible feeding device is in use, after the feeding of a stack of raw boards at the upper end of the pallet is completed, at this time, since there is no longer the extrusion force of the raw boards at the top of the pallet, the exhaust cleaning assembly is triggered to operate automatically, so as to effectively blow and sweep the impurities such as wood chips and dust accumulated on the surface of the pallet. In this way, when the subsequent raw boards are stacked and fed, it can effectively avoid scratches, abrasions and other damages to the bottom surface of the raw board caused by the residual impurities at the top of the pallet, greatly ensuring the integrity and beauty of the surface of the raw board, reducing the product quality problems caused by impurities, improving the production efficiency and the product qualification rate, and ensuring the efficient and stable operation of the entire flexible feeding process. Description of the Drawings

[0016] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the three-dimensional structural schematic diagram of the installation of the servo drive and the rotating column of the present invention; Figure 3 is the partial sectional three-dimensional structural schematic diagram of the installation of the limit cylinder and the piston column of the present invention; Figure 4 of the present inventionFigure 3 Schematic diagram of the enlarged structure at position A Figure 5 Isometric view from below of the installation of the piston rod and the liquid collecting cylinder of the present invention Figure 6 Isometric view of the partial sectional view of the installation of the limiting hole and the piston thimble of the present invention Figure 7 Isometric view from below of the installation of the moving plate and the supporting bracket of the present invention Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure at position B Figure 9 Isometric view of the partial sectional view of the installation of the installation box and the stepping motor of the present invention Figure 10 Isometric view of the partial sectional view of the installation of the spring exhaust pipe and the limiting cylinder of the present invention Figure 11 For the present invention Figure 10 Schematic diagram of the enlarged structure at position C

[0017] In the drawings, the list of components represented by each reference numeral is as follows: 1, annular conveyor; 2, servo drive motor; 3, rotating column; 4, fixed frame; 5, positioning frame; 6, palletizing plate; 7, limiting cylinder; 8, piston column; 9, air pump; 10, sprocket one; 11, threaded rod; 12, sprocket two; 13, chain; 14, threaded block; 15, connecting frame; 16, piston rod; 17, liquid collecting cylinder; 18, stretching hose; 19, mounting block; 20, abutting rod; 21, separating block; 22, diversion cavity; 23, limiting hole; 24, piston thimble; 25, return spring; 26, cylinder; 27, installation box; 28, stepping motor; 29, turntable; 30, guiding frame; 31, support frame; 32, suction cup; 33, moving plate; 34, arc groove; 35, positioning column; 36, auxiliary frame; 37, supporting bracket; 38, spring exhaust pipe; 39, sealing valve; 40, gear; 41, sliding seat; 42, rack; 43, pressing plate; 44, guiding rod; 45, compression spring; 46, spray head pipe Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention

[0019] Embodiment 1: Please refer to Figure 1 - Figure 9A flexible feeding device for vacuum plain board processing comprises an annular conveyor 1, a servo drive 2 arranged on one side of the annular conveyor 1 and a rotating column 3 coaxially fixed to the top of the output shaft of the servo drive 2, a fixed frame 4 is provided on one side of the servo drive 2, and a positioning frame 5 which is L-shaped when viewed from above is longitudinally provided at the top of the corner of the fixed frame 4, a stacking assembly is provided on one side of the fixed frame 4, a stacking plate 6 is provided on the outside of the top of the fixed frame 4 located between the positioning frames 5, an auxiliary frame 36 is fixedly installed on one side of the top of the rotating column 3, a cylinder 26 is longitudinally fixed on the bottom end of the auxiliary frame 36 away from the rotating column 3, a mounting box 27 is fixedly installed on the bottom end of the cylinder 26, a plain board feeding assembly is provided on one side of the bottom end of the mounting box 27, and a supporting frame 37 is provided on the outside of the mounting box 27 near each two positioning frames 5.

[0020] The stacking and separating assembly includes a threaded rod 11 and several separating blocks 21. The threaded rod 11 is longitudinally rotated and engaged and installed in the middle position of the top wall of the fixed frame 4. The several separating blocks 21 are sequentially fitted on the outside of the top of the positioning frame 5 on the corresponding side. The several separating blocks 21 are L-shaped when viewed from above. A threaded block 14 is threadedly connected to the outside of the threaded rod 11. A sprocket 2 12 is fixedly installed at the bottom end of the threaded rod 11. A sprocket 10 is fixed to the side of the rotating column 3 close to the sprocket 2 12. A chain 13 is provided between the sprocket 10 and the sprocket 2 12 for transmission connection.

[0021] A connecting frame 15 is fixedly installed on the outside of the threaded block 14 near the positioning frame 5, and a liquid collecting cylinder 17 is fixedly installed through the side of the fixing frame 4 near the top of the positioning frame 5. A piston rod 16 is longitudinally fixedly installed on the outside of the top of the connecting frame 15 near the liquid collecting cylinder 17. The piston end of the piston rod 16 is slidingly sealed and installed inside the liquid collecting cylinder 17 on the corresponding side. A mounting block 19 is penetrated on the outside of the side of the piston rod 16 near the connecting frame 15. Resistance rods 20 are longitudinally fixedly installed on both sides of the top of the mounting block 19. The top of the resistance rod 20 is slidably installed on the outside of the top of the positioning frame 5, and the top through-end of the resistance rod 20 is fixed to the outside of the bottom end of the spreading block 21.

[0022] A guide cavity 22 is provided inside the separating block 21, and a plurality of limiting holes 23 are uniformly spaced through the inside of the separating block 21 on one side near the middle of the stacking plate 6. A piston ejector pin 24 is provided inside each limiting hole 23 for sliding sealing. A return spring 25 is sleeved on the outside of one side of the resistance rod 20 located at the top of the mounting block 19, and the two ends of the return spring 25 are respectively mounted on the top of the mounting block 19 and on one side of the inner wall of the top of the fixing frame 4.

[0023] A stretch hose 18 is fixed through the top end of the liquid collecting cylinder 17 , and the top end of the stretch hose 18 passes through the interior of the positioning frame 5 and is fixedly installed in the diversion cavity 22 .

[0024] The plain board feeding assembly includes a stepping motor 28 and a turntable 29. The stepping motor 28 is fixedly installed inside the installation box 27, and the turntable 29 is fixedly installed outside the output end of the stepping motor 28. Guide frames 30 are fixedly installed on the outer side of the installation box 27 close to the supporting bracket 37. Support frames 31 are fixedly installed on the outer side of one side of the guide frames 30. A number of suction cups 32 are fixedly installed at equal intervals on one side of the support frames 31. Moving plates 33 are horizontally and slidably clamped and installed inside one side of the support frames 31. Arc-shaped grooves 34 are arranged through the inside of the turntable 29 close to the moving plates 33.

[0025] Positioning columns 35 are fixedly installed on the outer side of one side of the moving plates 33 close to the arc-shaped grooves 34. One end of the positioning columns 35 is installed through the inside of one side of the arc-shaped grooves 34. The ends of the moving plates 33 far from the positioning columns 35 are fixedly installed with the top ends of the corresponding supporting brackets 37 through brackets. The side view of the supporting bracket 37 is C-shaped.

[0026] A limit cylinder 7 is fixedly installed at the top end of the fixing frame 4. A piston column 8 is slidably and sealingly installed inside the limit cylinder 7. The top end of the piston column 8 is fixedly installed with the bottom end of the palletizing board 6. An air pump 9 is fixedly arranged on one side of the top end of the fixing frame 4. The output end of the air pump 9 is installed through the inside of one side of the bottom end of the limit cylinder 7.

[0027] In this embodiment, when the flexible feeding device for processing vacuum plain boards feeds rough plain boards, first, an electric forklift is used to smoothly lift the plain boards stacked in a fixed specification in the automated three-dimensional warehouse. After the forklift travels to the feeding station, the height is precisely controlled by a hydraulic lifting device, and the stack of plain boards is horizontally placed on the upper end of the palletizing board 6. Then, by controlling the servo drive motor 2 to start, the output shaft of the servo drive motor 2 rotates a certain angle, thereby driving the rotating column 3 at the top, the auxiliary frame 36, and the plain board feeding assembly on one side to rotate a certain angle synchronously, so that the plain board feeding assembly rotates from the top of the annular conveyor 1 to the top of the fixed frame 4. When the rotating column 3 rotates, it will drive the sprocket one 10 outside it to rotate a certain angle synchronously. Through the transmission connection of the chain 13, it will drive the sprocket two 12 on one side to rotate synchronously. Through the rotation of the sprocket two 12, the threaded rod 11 is driven to rotate. Through the rotation of the threaded rod 11, the threaded block 14 installed through the thread outside is lifted. Through the installation of the threaded block 14 and the connecting frame 15, when the threaded block 14 is lifted, it will drive the connecting frame 15 on the side and the piston rod 16 on one side of the top of the connecting frame 15 to be lifted synchronously. When the piston rod 16 is lifted, it will be lifted and extruded inside the liquid collecting cylinder 17, so that the hydraulic oil pre-filled in the liquid collecting cylinder 17 is introduced into the diversion cavity 22 inside the splitting block 21 through the stretching hose 18. Then, the introduced oil squeezes the piston ejector pins 24 inside several limiting holes 23 on the side of the diversion cavity 22, so that the piston ejector pins 24 eject a certain distance. Through the ejection of the piston ejector pins 24, one side of the piston ejector pins 24 abuts and squeezes against the outer corner of the topmost plain board on the palletizing board 6. When the connecting frame 15 drives the piston rod 16 to lift a short distance, at this time, the connecting frame 15 contacts one side of the mounting block 19. Then, as the connecting frame 15 continues to lift, it abuts against the top mounting block 19 and the abutting rod 20 to be lifted synchronously, so that the splitting block 21 is lifted a certain distance synchronously, so as to unstack and split the topmost plain board on the palletizing board 6, facilitating the subsequent insertion and support of the supporting frame 37. When the splitting is completed, at this time, the rotating column 3 also drives the cylinder 26 to rotate to the top of the plain board. At this time, by starting the cylinder 26, through the extension of the output end of the cylinder 26, the mounting box 27, the stepping motor 28, the turntable 29, the guiding frame 30, the supporting frame 31, the suction cup 32, the moving plate 33, the auxiliary frame 36, and the supporting frame 37 are driven to extend and descend synchronously, so that the suction cup 32 fits on the top surface of the plain board for flexible suction positioning. Then, by controlling the stepping motor 28 to start, through the rotation of the output end of the stepping motor 28, the turntable 29 is driven to rotate. Through the penetration and limitation of the arc-shaped groove 34 inside the turntable 29 and the positioning column 35, when the turntable 29 rotates, it will drive a plurality of moving plates 33 on the side to move centrally synchronously. Through the central movement of the moving plates 33, the C-shaped supporting frame 37 on the side is pulled to move centrally synchronously, so that the C-shaped supporting frame 37 is engaged on the side of the plain board, so as to effectively support the bottom edge of the plain board.Therefore, there is no risk of shedding during the transportation of the plain board, ensuring the overall feeding safety and the overall operation stability. At the same time, when the device flexibly sucks and feeds the plain board with a smooth surface, it can directly use the suction cup 32 for sucking and feeding, with a wider overall application range.

[0028] It should also be noted that after the plain board is sucked and positioned, at this time, control the servo drive motor 2 to drive the rotating column 3 to rotate in the reverse reset direction, so as to transfer the sucked plain board to the top of the ring conveyor 1 and release it, thereby completing the feeding. When the rotating column 3 rotates in the reverse reset direction, at this time, drive the threaded rod 11 to rotate in the reverse reset direction, so that the sheet separating block 21 descends and resets. At the same time, the piston ejector pin 24 on the side wall of the sheet separating block 21 also retracts synchronously, so as to perform the unstacking and sheet separating process on the next plain board. When the rotating column 3 rotates in the reverse reset direction, the air pump 9 can be controlled to start, and a certain amount of gas is filled into the internal of the limit cylinder 7, so that the piston column 8 inside the limit cylinder 7 drives the stacking board 6 and the plain board at the top to lift a certain height, so that another plain board is lifted to one side of the sheet separating block 21, ensuring the coherence of the overall operation and better overall use effect.

[0029] Embodiment 2: Please refer to Figure 10 - Figure 11 This embodiment further describes the first embodiment. An exhaust cleaning component is arranged on one side of the bottom end of the stacking board 6.

[0030] The exhaust cleaning component includes a spring exhaust pipe 38 and a spray head pipe 46. One end of the spring exhaust pipe 38 is fixedly installed through the internal of one side of the bottom end of the limit cylinder 7. The spray head pipe 46 is horizontally fixedly installed on the outside of one side of the stacking board 6 through a bracket. The output end of the spring exhaust pipe 38 is conductively fixed to the input end of the spray head pipe 46. A sealing valve 39 is conductively fixed inside one side of the spring exhaust pipe 38, and the top end of the sealing valve 39 is fixed on the outside of one side of the bottom end of the stacking board 6.

[0031] A gear 40 is fixedly installed on the outside of one end of the valve stem of the sealing valve 39. A sliding seat 41 is longitudinally fixedly installed through the internal of the stacking board 6 close to the gear 40. A rack 42 is longitudinally slidably engaged and installed on one side of the sliding seat 41. One side of the rack 42 is meshed and connected with one side of the gear 40. A pressing plate 43 is fixed at the top end of the rack 42. A guiding rod 44 is fixed at the bottom end of the rack 42. The bottom end of the guiding rod 44 is slidably installed through the outside of one side of the bottom end of the sliding seat 41. A compression spring 45 is sleeved on the outside of one side of the guiding rod 44, and both ends of the compression spring 45 are installed on the bottom wall of the sliding seat 41 and the bottom surface of one side of the rack 42 respectively.

[0032] In this embodiment, when the flexible feeding device is in use, after the feeding of a stack of raw boards at the upper end of the palletizing board 6 is completed, since there is no longer the extrusion force of the raw boards at the top of the palletizing board 6, the extrusion force at the top of the pressing plate 43 is lost at this time. As a result, the compression spring 45 at the bottom end of the rack 42 starts to rebound. Through the rebound of the compression spring 45, the rack 42 and the pressing plate 43 at the top are driven to lift synchronously by a certain distance. When the rack 42 is lifted, it drives the meshing gear 40 on one side to rotate synchronously. Through the rotation of the gear 40, the sealing valve 39 is opened. At this time, the piston column 8 starts to descend under the gravity of the palletizing board 6, causing the palletizing board 6 to descend to the initial position, facilitating the placement of another stack of raw boards subsequently. Through the descent of the piston column 8, the gas inside the limiting cylinder 7 is squeezed into the internal of the spring exhaust pipe 38, then enters the internal of the nozzle pipe 46, and finally is discharged from multiple nozzles on the side of the nozzle pipe 46. In this way, it can effectively blow and sweep impurities such as wood chips and dust accumulated on the surface of the palletizing board 6. In this way, when the raw boards are stacked and fed subsequently, it can effectively prevent the residual impurities at the top of the palletizing board 6 from scratching and wearing the bottom surface of the raw boards, greatly ensuring the integrity and aesthetics of the surface of the raw boards. At the same time, it also reduces the product quality problems caused by impurities, improves the production efficiency and product qualification rate, and ensures the efficient and stable operation of the entire flexible feeding process.

[0033] It should also be noted that when the forklift places a new stack of raw boards on the top of the palletizing board 6, at this time, the moving plate 33 is subjected to the extrusion force of the raw boards and drives the rack 42 at the bottom to descend. The descent of the rack 42 drives the meshing gear 40 on one side to rotate in place, so that the sealing valve 39 is closed, ensuring that when the air pump 9 subsequently fills the internal of the limiting cylinder 7 with gas to lift the palletizing board 6, there will be no air leakage, and ensuring the stability of the overall operation.

[0034] The present invention also provides a feeding method for a flexible feeding device for processing vacuum raw boards, including the following steps: S1: First, use an electric forklift to smoothly fork the raw boards palletized in a fixed specification in the automated stereoscopic warehouse. After the forklift travels to the feeding station, accurately control the height through the hydraulic lifting device, and horizontally place the stack of raw boards on the upper end of the palletizing board 6; S2: Then, through the operation of the servo drive 2, the rotating column 3 and the raw board feeding assembly, the stack of raw boards is stably sucked, and then transferred to the top of the circular conveyor 1, thus completing the feeding operation during the processing of vacuum raw boards; S3: When sucking and feeding the raw boards with a rough surface, at this time, through the operation of the stack splitting component, the stack of raw boards is extracted and lifted one by one, so as to facilitate the subsequent gathering of the supporting brackets 37 to support the bottom of the single raw board, and complete the sucking and feeding of the rough raw boards; S4: When the feeding of a stack of blank boards at the upper end of the palletizing board 6 is completed, since there is no longer the extrusion pressure of the blank boards at the top of the palletizing board 6 at this time, the exhaust cleaning assembly is triggered to operate automatically, so as to blow and clean the impurities on the palletizing surface of the palletizing board 6, and avoid damaging the bottom surface of the blank boards when the subsequent blank boards are stacked and fed due to the residual impurities at the top of the palletizing board 6.

[0035] It should be noted that in this article, relational terms such as first and second are only 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. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flexible feeding device for processing vacuum plain boards, comprising an annular conveyor (1), a servo drive motor (2) arranged on one side of the annular conveyor (1), and a rotating column (3) coaxially fixed to the top end of the output shaft of the servo drive motor (2), characterized in that: On one side of the servo drive (2), there is a fixed frame (4). At the top corners of the fixed frame (4), there are positioning frames (5) that are L-shaped in top view and arranged longitudinally. On one side of the fixed frame (4), there is a stack separation component. At the top outside of the fixed frame (4) between the positioning frames (5), there is a palletizing board (6). On one side of the top of the rotating column (3), there is an auxiliary frame (36) fixedly installed. On the bottom outside of the side of the auxiliary frame (36) away from the rotating column (3), there is a cylinder (26) fixedly installed longitudinally. At the bottom of the cylinder (26), there is an installation box (27) fixedly installed. On one side of the bottom of the installation box (27), there is a plain board feeding component. On the outside of one side of the installation box (27) near each two positioning frames (5), there is a supporting bracket (37). On one side of the bottom of the palletizing board (6), there is an exhaust cleaning component.

2. The flexible feeding device for processing vacuum plain boards according to claim 1, wherein: The stack separation component includes a threaded rod (11) and a number of separation blocks (21). The threaded rod (11) is longitudinally rotatably engaged and installed in the middle position of the top wall of the fixed frame (4). The number of separation blocks (21) are sequentially attached and arranged on the outside of the top of the corresponding side positioning frame (5). The number of separation blocks (21) are L-shaped in top view. The threaded rod (11) is threadedly connected through the outside with a threaded block (14). At the bottom of the threaded rod (11), there is a sprocket two (12) fixedly installed. On the side of the rotating column (3) near the sprocket two (12), there is a sprocket one (10) fixedly installed through. Between the sprocket one (10) and the sprocket two (12), there is a chain (13) sleeved and drivingly connected.

3. The flexible feeding device for processing vacuum plain boards according to claim 2, wherein: On the outside of the side of the threaded block (14) near the positioning frame (5), there are connecting frames (15) fixedly installed. On the top side of the fixed frame (4) near the positioning frame (5), there are liquid collecting cylinders (17) fixedly installed through. On the outside of the top side of the connecting frame (15) near the liquid collecting cylinder (17), there are piston rods (16) fixedly installed longitudinally. The piston end of the piston rod (16) is slidably and sealingly installed inside the corresponding side liquid collecting cylinder (17). On the outside of the side of the piston rod (16) near the connecting frame (15), there is an installation block (19) installed through. On both sides of the top of the installation block (19), there are abutting rods (20) fixedly installed longitudinally. The top ends of the abutting rods (20) are slidably installed through the outside of the top of the positioning frame (5). The through ends of the top ends of the abutting rods (20) are installed and fixed to the outside of one side of the bottom of the separation block (21).

4. A flexible feeding device for processing vacuum plain boards according to claim 3, characterized in that: Inside the separation block (21), there is a diversion cavity (22). Inside the side of the separation block (21) near the middle position of the palletizing board (6), there are a number of limiting holes (23) arranged at equal intervals and penetrated. Inside each limiting hole (23), there is a piston ejector pin (24) slidably and sealingly installed. On the outside of the side of the abutting rod (20) at the top of the installation block (19), there are return springs (25) sleeved. The two ends of the return spring (25) are respectively installed on the top of the installation block (19) and one side of the inner wall of the top of the fixed frame (4).

5. The flexible feeding device for vacuum plain board processing according to claim 4, characterized in that: The top ends of the liquid collecting cylinders (17) are all fixedly penetrated with stretching hoses (18), and the top ends of the stretching hoses (18) penetrate through the inside of the positioning frame (5) and are fixedly installed in the diversion cavity (22) in a conducting manner.

6. The flexible feeding device for processing vacuum plain boards according to claim 1, wherein: The plain board feeding assembly includes a stepping motor (28) and a turntable (29). The stepping motor (28) is fixedly installed inside the installation box (27). The turntable (29) is fixedly installed outside the output end of the stepping motor (28). Guide frames (30) are fixedly installed on the outer sides of the installation box (27) close to the bearing bracket (37). Support frames (31) are fixedly installed on the outer sides of one sides of the guide frames (30). A number of suction cups (32) are fixedly installed at equal intervals on one side of the support frame (31). Moving plates (33) are horizontally penetrated and slidably engaged inside one sides of the support frames (31). Arc-shaped grooves (34) are penetrated and arranged inside one sides of the turntable (29) close to the moving plates (33).

7. The flexible feeding device for vacuum plain board processing according to claim 6, characterized in that: Positioning columns (35) are fixedly installed on the outer sides of one sides of the moving plates (33) close to the arc-shaped grooves (34). One ends of the positioning columns (35) penetrate and are installed inside one sides of the arc-shaped grooves (34). The ends of the moving plates (33) far from the positioning columns (35) are fixedly installed at the top ends of the corresponding bearing brackets (37) through brackets. The side view of the bearing bracket (37) is arranged in a C shape.

8. A flexible feeding device for vacuum plain board processing according to claim 1, characterized in that: A limit cylinder (7) is fixedly installed at the top end of the fixed frame (4). A piston column (8) is slidably and sealingly installed inside the limit cylinder (7). The top end of the piston column (8) is fixedly installed with the bottom end of the palletizing board (6). An air pump (9) is fixedly arranged on one side of the top end of the fixed frame (4). The output end of the air pump (9) penetrates and is installed inside one side of the bottom end of the limit cylinder (7). The exhaust cleaning assembly includes a spring exhaust pipe (38) and a spray head pipe (46). One end of the spring exhaust pipe (38) penetrates and is fixedly installed inside one side of the bottom end of the limit cylinder (7). The spray head pipe (46) is horizontally fixedly installed on the outer side of one side of the palletizing board (6) through a bracket. The output end of the spring exhaust pipe (38) is fixedly connected to the input end of the spray head pipe (46) in a conducting manner. A sealing valve (39) is fixedly installed in a conducting manner inside one side of the spring exhaust pipe (38). The top end of the sealing valve (39) is fixed on the outer side of one side of the bottom end of the palletizing board (6).

9. The flexible feeding device for processing vacuum plain boards according to claim 8, characterized in that: One end of the valve stem of the sealing valve (39) is fixedly installed with a gear (40) on the outside. A sliding seat (41) is longitudinally penetrated and fixed inside one side of the palletizing board (6) close to the gear (40). A rack (42) is longitudinally slidably engaged and installed on one side of the sliding seat (41). One side of the rack (42) is meshed and connected with one side of the gear (40). A pressing plate (43) is fixed at the top end of the rack (42). A guiding rod (44) is fixed at the bottom end of the rack (42). The bottom end of the guiding rod (44) is slidably installed through the outside of one side of the bottom end of the sliding seat (41). A compression spring (45) is sleeved on the outside of one side of the guiding rod (44). Two ends of the compression spring (45) are respectively installed on the bottom wall of the sliding seat (41) and the bottom surface of one side of the rack (42).

10. A feeding method for a flexible feeding device used in vacuum plain board processing. According to the flexible feeding device for vacuum plain board processing described in any one of claims 1-9, it is characterized in that, The method comprises the following steps: S1: First, use an electric forklift to smoothly fork and lift the plain boards palletized in the automated stereoscopic warehouse according to fixed specifications. After the forklift travels to the feeding station, precisely control the height through the hydraulic lifting device, and horizontally place the plain board stack on the upper end of the palletizing board (6); S2: Then, through the operation of the servo drive machine (2), the rotating column (3) and the plain board feeding assembly, stably suck the plain boards in the stack, and then transfer them to the top of the annular conveyor (1), thereby completing the feeding operation during the processing of the vacuum plain boards; S3: When sucking and feeding the plain boards with rough surfaces, at this time, through the operation of the stack splitting assembly, single plain boards in the stack are extracted and lifted one by one, so as to facilitate the subsequent gathering of the supporting brackets (37) to support the bottoms of the single plain boards, and complete the sucking and feeding of the rough plain boards; S4: When the feeding of a stack of plain boards on the upper end of the palletizing board (6) is completed, at this time, since there is no longer the extrusion force of the plain boards on the top end of the palletizing board (6), the exhaust and cleaning assembly is triggered to automatically operate, so as to blow and clean the impurities on the palletizing surface of the palletizing board (6), and avoid damaging the bottom surface of the plain boards due to the residual impurities on the top end of the palletizing board (6) when the subsequent plain boards are stacked and fed.

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