Flexible feeding device and feeding method for vacuum plain board processing

Abstract

The present invention relates to the technical field of sheet separation and loading of blank panels, and specifically to a flexible feeding device and feeding method for vacuum blank panel 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. When a forklift is used to stably fork the blank panels stacked according to fixed specifications in an automated three-dimensional warehouse and place them on the upper end of the stacked panels, the arrangement and coordinated operation of the stack separation component and the blank panel feeding component enable the flexible feeding device to automatically and orderly extract and lift the blank panels in the stack when sucking and feeding the blank panels with rough surfaces, so as to carry out destacking processing, thereby facilitating the subsequent support frames to gather and support the bottom of the single blank panel. By the gathering and support of multiple C-shaped support frames and the adsorption of a number of suction cups, there is no risk of the blank panels falling off during transportation, thereby ensuring the overall feeding safety and the overall operation stability.

Description

Technical Field

[0001] The invention relates to the technical field of sheet-feeding of blank panels, and in particular to a flexible feeding device and a feeding method for vacuum blank panel processing. Background Art

[0002] In the modern furniture manufacturing industry, vacuum-finished panels, with their excellent processing properties and diverse surface finishes, have become a core material for custom furniture production. From wardrobes and cabinets to bookcase bodies and doors, vacuum-finished panels can be applied through veneering and painting processes to achieve diverse colors and textures, meeting consumers' personalized needs. However, within the automated processing of vacuum-finished panels, technical deficiencies in the feeding process have become a key factor restricting production efficiency and product quality.

[0003] At present, the feeding operation of vacuum blank panels generally adopts a combination of automation and semi-automation. First, a forklift is used to transfer the blank panels stacked according to fixed specifications in the automated warehouse to the stacking board. Then, a feeding device equipped with flexible adsorption components is used to destacker and suck the blank panels layer by layer. Although this technical path has achieved basic automated operations, it has exposed significant adaptability problems in actual applications.

[0004] The surface materials of vacuum boards in the furniture industry are complex and diverse, with particleboard and solid wood board being 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 take into account the adsorption requirements of different materials. When adsorbing particleboard, due to its uneven surface, the adsorption component cannot fit tightly with the surface of the board, which is very likely to cause air leakage, resulting in a significant decrease in adsorption force, making the board at risk of falling off during transportation, seriously threatening feeding safety. In addition, the existing feeding device lacks the function of automatically cleaning the surface of the support platform after completing the destacking and feeding of a stack of boards. During the feeding process, wood chips, dust and other impurities that fall off the surface of the board will remain on the surface of the support platform (such as stacking board). If not cleaned in time, these residual impurities will cause scratches and wear on the bottom surface of the newly placed board when the boards are subsequently stacked and fed. The lack of this cleaning function forces operators to spend extra time and energy on manual cleaning, which increases labor costs and also reduces overall production efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a flexible feeding device and feeding method for vacuum blank board processing, so as to solve the problem that the existing flexible adsorption components proposed in the above background technology are difficult to take into account the adsorption requirements of different materials, resulting in a significant decrease in adsorption force, which makes the blank boards at risk of falling off during transportation, seriously threatening the feeding safety. In addition, the existing feeding device lacks the problem of automatic cleaning of the support table surface after completing the destacking and feeding of a stack of blank boards.

[0006] 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.

[0007] 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.

[0008] 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.

[0009] 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.

[0010] 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.

[0011] Furthermore, the blank plate feeding assembly includes a stepper motor and a turntable, the stepper motor is fixedly installed inside the installation box, the turntable is fixedly installed outside the output end of the stepper motor, a guide frame is fixedly installed on the outside of one side of the installation box close to the support frame, a support frame is fixedly installed on the outside of one side of the guide frame, a plurality of suction cups are fixedly installed at equal intervals on one side of the support frame, a movable plate is installed horizontally through the inside of one side of the support frame for sliding engagement, and an arc groove is provided through the inside of the turntable close to the movable plate.

[0012] Furthermore, a positioning column is fixedly installed on the outside of one side of the movable plate close to the arc groove, one end of the positioning column is installed inside one side of the arc groove, and the end of the movable plate away from the positioning column is fixedly installed through the bracket and the top end of the supporting bracket on the corresponding side, and the supporting bracket side is viewed as a C-shaped setting.

[0013] Furthermore, a limit cylinder is fixedly installed on the top of the fixing frame, and a piston column is installed on the internal sliding seal of the limit cylinder. The top of the piston column is fixed to the bottom end of the stacking plate, and an air pump is fixed on one side of the top of the fixing frame. The output end of the air pump is installed through the inside of the bottom end of the limit cylinder. The exhaust cleaning assembly includes a spring exhaust pipe and a nozzle pipe. One end of the spring exhaust pipe is fixed through the inside of the bottom end of the limit cylinder. The nozzle pipe is fixedly installed on the outside of one side of the stacking plate through the bracket. The output end of the spring exhaust pipe is connected and fixed to the input end of the nozzle pipe. A sealing valve is fixed inside one side of the spring exhaust pipe, and the top of the sealing valve is fixed to the outside of the bottom end of the stacking plate.

[0014] Furthermore, a gear is fixedly installed on the outside of one end of the valve stem of the sealing valve, a sliding seat is fixedly passed through the inside of the stacking plate close to the gear, a rack is longitudinally slidably mounted on one side of the sliding seat, one side of the rack is meshed with one side of the gear, a pressure plate is fixed on the top of the rack, a guide rod is fixed on the bottom end of the rack, the bottom end of the guide rod is passed through and slidably installed on the outside of one side of the bottom end of the sliding seat, a compression spring is sleeved on the outside of one side of the guide rod, and both ends of the compression spring are respectively mounted on the bottom wall of the sliding seat and one side of the bottom surface of the rack.

[0015] The present invention also provides a feeding method of a flexible feeding device for processing vacuum plain panels, comprising the following steps:

[0016] S1: First, use an electric forklift to steadily pick up the blank boards that have been stacked according to fixed specifications in the automated warehouse. After the forklift drives to the feeding station, the hydraulic lifting device accurately controls the height and places the blank board stack horizontally on the top of the stacked board.

[0017] S2: The servo drive, rotating column and blank board feeding assembly are then used to stably absorb the stacked blank boards and transfer them to the top of the ring conveyor, thus completing the feeding operation during vacuum blank board processing.

[0018] S3: When the rough-surfaced blank board is sucked and fed, the stacking and separating assembly can be operated to extract and lift the blank board from the stack individually, so that the subsequent support frame can gather to support the bottom of the single blank board, thus completing the suction and feeding of the rough blank board;

[0019] S4: When a stack of blank boards is fed into the upper part of the palletizing plate, there is no longer any squeezing force from the top of the palletizing plate, which triggers the automatic operation of the exhaust cleaning component to blow air to clean the impurities on the palletizing surface, thus preventing the residual impurities on the top of the palletizing plate from damaging the bottom surface of the blank boards when the blank boards are subsequently stacked and fed.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] When the forklift truck stably picks up the blank boards that have been stacked in fixed specifications in the automated three-dimensional warehouse and places them on the upper end of the stacking boards, the arrangement and coordinated operation of the stacking separation component and the blank board feeding component enable the flexible feeding device to automatically and orderly extract and lift the blank boards from the stack when sucking and feeding the blank boards with rough surfaces, so as to carry out the destacking process, so as to facilitate the subsequent support racks to gather and support the bottom of the single blank board. Through the gathering and support of multiple C-shaped support racks and the adsorption of several suction cups, there is no risk of the blank boards falling off during the transportation process, thereby ensuring the overall feeding safety and overall operation stability.

[0022] Through the setting and operation of the exhaust cleaning component, when the flexible feeding device is in use, after the feeding of a stack of blank boards at the top of the stacking board is completed, the exhaust cleaning component is triggered to run automatically because there is no longer any squeezing pressure from the blank boards at the top of the stacking board, thereby effectively blowing away impurities such as wood chips and dust accumulated on the surface of the stacking board. In this way, when the blank boards are stacked and fed subsequently, it can effectively avoid the residual impurities on the top of the stacking board from causing scratches, wear and other damage to the bottom surface of the blank boards, thereby greatly ensuring the integrity and aesthetics of the blank board surface, and at the same time reducing product quality problems caused by impurities, improving production efficiency and product qualification rate, and ensuring the efficient and stable operation of the entire flexible feeding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the servo drive and the rotating column installed in the present invention;

[0025] Figure 3 This is a schematic diagram of a partially cutaway three-dimensional structure of the installation of the limit cylinder and the piston column of the present invention;

[0026] Figure 4 For the present invention Figure 3 A in the middle is an enlarged structural diagram;

[0027] Figure 5 This is a bottom-up perspective structural diagram of the piston rod and the liquid collecting cylinder of the present invention;

[0028] Figure 6 This is a schematic diagram of a partially cutaway three-dimensional structure of the installation of the limiting hole and the piston ejector pin of the present invention;

[0029] Figure 7 This is a bottom-view three-dimensional structural diagram of the movable plate and the supporting bracket of the present invention;

[0030] Figure 8 For the present invention Figure 7 The enlarged structural diagram at B in the middle;

[0031] Figure 9 This is a schematic diagram of a partially cutaway three-dimensional structure of the installation box and the stepping motor of the present invention;

[0032] Figure 10 This is a schematic diagram of a partially cutaway three-dimensional structure of the spring exhaust pipe and the limit cylinder installed in the present invention;

[0033] Figure 11 For the present invention Figure 10 Enlarged structural diagram at point C in the middle.

[0034] In the accompanying drawings, the components represented by the reference numerals are as follows: 1. Annular conveyor; 2. Servo drive; 3. Rotating column; 4. Fixed frame; 5. Positioning frame; 6. Pallet plate; 7. Limit cylinder; 8. Piston column; 9. Air pump; 10. Sprocket 1; 11. Threaded rod; 12. Sprocket 2; 13. Chain; 14. Threaded block; 15. Connecting frame; 16. Piston rod; 17. Liquid collecting cylinder; 18. Stretch hose; 19. Mounting block; 20. Resistance rod; 21. Sheeting block; 22. Diversion chamber; 2 3. Limit hole; 24. Piston ejector pin; 25. Return spring; 26. Cylinder; 27. Mounting box; 28. Stepper motor; 29. ​​Turntable; 30. Guide frame; 31. Support frame; 32. Suction cup; 33. Moving plate; 34. Arc groove; 35. Positioning column; 36. Auxiliary frame; 37. Support frame; 38. Spring exhaust pipe; 39. Sealing valve; 40. Gear; 41. Sliding seat; 42. Rack; 43. Pressure plate; 44. Guide rod; 45. Compression spring; 46. Nozzle pipe. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] Example 1: Please refer to Figure 1 - Figure 9 A 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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 .

[0041] The blank plate feeding assembly includes a stepper motor 28 and a turntable 29. The stepper motor 28 is fixedly installed inside the installation box 27, and the turntable 29 is fixedly installed outside the output end of the stepper motor 28. A guide frame 30 is fixedly installed on the outside of the installation box 27 close to the support bracket 37, and a support frame 31 is fixedly installed on the outside of the guide frame 30. Several suction cups 32 are fixedly installed at equal intervals on one side of the support frame 31. A movable plate 33 is installed horizontally through the inside of one side of the support frame 31 for sliding engagement, and an arc groove 34 is provided through the inside of the turntable 29 close to the movable plate 33.

[0042] A positioning column 35 is fixedly installed on the outside of the movable plate 33 close to the arc groove 34. One end of the positioning column 35 is installed inside one side of the arc groove 34. The end of the movable plate 33 away from the positioning column 35 is fixedly installed through the bracket and the top of the supporting bracket 37 on the corresponding side. The supporting bracket 37 is viewed from the side as a C-shaped setting.

[0043] A limit cylinder 7 is fixedly installed on the top of the fixed frame 4, and a piston column 8 is installed on the internal sliding seal of the limit cylinder 7. The top of the piston column 8 is fixed to the bottom end of the stacking plate 6, and an air pump 9 is fixed on one side of the top of the fixed frame 4. The output end of the air pump 9 is installed inside the bottom side of the limit cylinder 7.

[0044] In this embodiment, when the flexible feeding device for vacuum blank plate processing feeds rough blank plates, an electric forklift is first used to stably pick up the blank plates stacked according to fixed specifications in the automated warehouse. After the forklift drives to the feeding station, the height is precisely controlled by the hydraulic lifting device, and the blank plate stack is placed horizontally on the upper end of the stacking plate 6. Then, the servo drive 2 is started by controlling the output shaft of the servo drive 2 to rotate a certain angle, thereby driving the top rotating column 3, the auxiliary frame 36 and the blank plate feeding assembly on one side to rotate synchronously by a certain angle, so that the blank plate feeding assembly rotates from the top of the ring conveyor 1 to the top of the fixed frame 4. When the rotating column 3 rotates, it will drive the sprocket 10 on its outside to rotate synchronously by a certain angle, and the transmission of the chain 13 The dynamic connection will drive the synchronous rotation of the sprocket 2 12 on one side, and the rotation of the sprocket 2 12 will drive the threaded rod 11 to rotate. The rotation of the threaded rod 11 will drive the threaded block 14 installed with the external thread to be lifted. The threaded block 14 is installed with the connecting frame 15, so that when the threaded block 14 is lifted, the connecting frame 15 on the side and the piston rod 16 on the top side of the connecting frame 15 will be lifted synchronously. When the piston rod 16 is lifted, it will be lifted and squeezed inside the liquid collecting cylinder 17, so that the hydraulic oil pre-filled in the liquid collecting cylinder 17 is introduced into the guide cavity 22 inside the spreading block 21 through the stretching hose 18. The oil then squeezes the piston thimble 24 inside the several limiting holes 23 on the side of the guide cavity 22, causing the piston thimble 24 to be pushed out a certain distance. The distance is determined by the ejection of the piston ejector pin 24, so that one side of the piston ejector pin 24 is pressed against the outer corner of the topmost plain board of the stacking plate 6. When the connecting frame 15 drives the piston rod 16 to rise a short distance, the connecting frame 15 contacts one side of the mounting block 19. Then, as the connecting frame 15 continues to rise, the mounting block 19 and the resisting rod 20 at the top are lifted synchronously, so that the sheeting block 21 is lifted synchronously by a certain distance, so that the topmost plain board of the stacking plate 6 can be destackered and sheeted, so that the subsequent support frame 37 can be inserted and supported. When the sheeting is completed, 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 and extending the output end of the cylinder 26, the mounting box 27 is driven. , the stepper motor 28, the turntable 29, the guide frame 30, the support frame 31, the suction cup 32, the movable plate 33, the auxiliary frame 36 and the supporting frame 37 are synchronously extended and lowered, so that the suction cup 32 is attached to the top surface of the plain plate for flexible suction positioning, and then the stepper motor 28 is controlled to start, and the output end of the stepper motor 28 is rotated to drive the turntable 29 to rotate, and the arc groove 34 inside the turntable 29 and the positioning column 35 are limited, so that when the turntable 29 rotates, it will drive multiple movable plates 33 on the side to move synchronously in the center, and the centering movement of the movable plate 33 will pull the C-shaped supporting frame 37 on the side to move synchronously in the center, so that the C-shaped supporting frame 37 is engaged with the side of the plain plate, thereby effectively supporting the bottom edge of the plain plate.This ensures that the raw board will not fall off during transportation, ensuring overall feeding safety and overall operational stability. At the same time, when the device is flexibly sucking and feeding the raw board with a smooth surface, it can directly use the suction cup 32 to suck and feed the material, which has a wider overall scope of application.

[0045] It should also be noted that after the blank board is sucked and positioned, the servo drive motor 2 is controlled to drive the rotating column 3 to rotate in the reverse direction, so that the sucked blank board is transferred to the top of the ring conveyor 1 and released, thereby completing the feeding. When the rotating column 3 rotates in the reverse direction, it drives the threaded rod 11 to rotate in the reverse direction, so that the sheeting block 21 descends and resets. At the same time, the piston pin 24 on the side wall of the sheeting block 21 is also retracted synchronously, so as to destacker and sheet the next blank board. When the rotating column 3 rotates in the reverse direction, the air pump 9 can be controlled to start and a certain amount of gas can be filled into the interior of the limiting cylinder 7, so that the piston column 8 inside the limiting cylinder 7 drives the stacking board 6 and the blank board at the top to be lifted to a certain height, so that the other blank board is lifted to one side of the sheeting block 21, ensuring the continuity of the overall operation and better overall use effect.

[0046] Example 2: Please refer to Figure 10 - Figure 11 This embodiment further illustrates Example 1, in which an exhaust cleaning component is provided on one side of the bottom end of the stacking plate 6 .

[0047] The exhaust cleaning assembly includes a spring exhaust pipe 38 and a nozzle pipe 46. One end of the spring exhaust pipe 38 is fixedly installed inside the bottom side of the limit cylinder 7. The nozzle pipe 46 is laterally fixedly installed on the outside of one side of the stacking plate 6 through a bracket. The output end of the spring exhaust pipe 38 is connected and fixed to the input end of the nozzle pipe 46. A sealing valve 39 is 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 the bottom side of the stacking plate 6.

[0048] A gear 40 is fixedly installed on the outside of one end of the valve stem of the sealing valve 39, and a sliding seat 41 is fixedly passed through the inside of the stacking plate 6 near the gear 40. A rack 42 is installed on one side of the sliding seat 41 in a longitudinal sliding engagement. One side of the rack 42 is meshed with one side of the gear 40, and a pressure plate 43 is fixed to the top of the rack 42. A guide rod 44 is fixed to the bottom end of the rack 42. The bottom end of the guide rod 44 is slidably installed on the outside of the bottom end of the sliding seat 41. A compression spring 45 is sleeved on the outside of one side of the guide rod 44, and the two ends of the compression spring 45 are respectively installed on the bottom wall of the sliding seat 41 and one side of the bottom surface of the rack 42.

[0049] 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 stacking plate 6 is completed, there is no longer any squeezing pressure of the raw boards at the top of the stacking plate 6. At this time, the top of the pressure plate 43 loses the squeezing pressure, so that the compression spring 45 at the bottom end of the rack 42 begins to rebound. Through the rebound of the compression spring 45, the rack 42 and the top pressure plate 43 are synchronously lifted for a distance. When the rack 42 is lifted, it will drive 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 begins to descend under the action of the gravity of the stacking plate 6, so that the stacking plate 6 descends to the initial position, which is convenient for the subsequent loading of another stack of raw boards. It can be placed, and through the descent of the piston column 8, the gas inside the limit cylinder 7 is squeezed into the inside of the spring exhaust pipe 38, and then enters the inside of the nozzle pipe 46, and finally discharged from multiple nozzles on the side of the nozzle pipe 46, so as to effectively blow away the wood chips, dust and other impurities accumulated on the surface of the stacking board 6. In this way, when the blank boards are stacked and fed subsequently, the residual impurities on the top of the stacking board 6 can be effectively avoided from causing scratches, wear and other damage to the bottom surface of the blank board, which greatly guarantees the integrity and beauty of the blank board surface, and also reduces product quality problems caused by impurities, improves production efficiency and product qualification rate, and ensures the efficient and stable operation of the entire flexible feeding process.

[0050] It should also be noted that when the forklift places a new stack of blank boards on the top of the stacking board 6, the movable plate 33 is squeezed by the blank boards, driving the rack 42 at the bottom to descend. The rack 42 descends, thereby driving the meshing gear 40 on one side to reset and rotate, thereby closing the sealing valve 39, ensuring that when the air pump 9 subsequently fills the limit cylinder 7 with gas to lift the stacking board 6, there will be no air leakage, thereby ensuring the stability of the overall operation.

[0051] The present invention also provides a feeding method of a flexible feeding device for processing vacuum plain panels, comprising the following steps:

[0052] S1: First, use an electric forklift to steadily pick up the blank boards that have been stacked according to fixed specifications in the automated warehouse. After the forklift drives to the feeding station, the height is precisely controlled by the hydraulic lifting device to place the blank board stack horizontally on the top of the stacking plate 6;

[0053] S2: The servo drive 2, the rotating column 3 and the blank board feeding assembly are then operated to stably absorb the stacked blank boards and then transfer them to the top of the ring conveyor 1, thus completing the feeding operation during vacuum blank board processing.

[0054] S3: When the rough-surfaced blank board is sucked and fed, the stacking and separating assembly can be operated to extract and lift the blank board from the stack individually, so that the subsequent support frame 37 can gather and support the bottom of the single blank board, thus completing the suction and feeding of the rough blank board;

[0055] S4: When the feeding of a stack of blank boards at the upper end of the stacking board 6 is completed, there is no longer any squeezing pressure from the blank boards at the top of the stacking board 6, thereby triggering the automatic operation of the exhaust cleaning component to blow air to clean the impurities on the stacking surface of the stacking board 6, so as to prevent the residual impurities on the top of the stacking board 6 from damaging the bottom surface of the blank boards when subsequent blank boards are stacked and fed.

[0056] It should be noted that, in this document, relational terms such as first and second, etc., are used only 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 terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0057] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A flexible feeding device for processing vacuum blank panels, comprising 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 end of the output shaft of the servo drive (2), characterized in that: 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), and a stacking assembly is provided on one side of the fixed frame (4), and 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), and a cylinder (26) is longitudinally fixed on the bottom of the side 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), and a plain plate feeding assembly is provided on one side of the bottom end of the mounting box (27). A supporting frame (37) is provided on the outside of the side of the mounting box (27) close to each two positioning frames (5), and an exhaust cleaning assembly is provided on one side of the bottom end of the stacking plate (6); The stacking and separating assembly comprises a threaded rod (11) and a plurality of separating blocks (21), wherein the threaded rod (11) is longitudinally rotated and engaged to be mounted at the middle position of the top wall of the fixing frame (4), and the plurality of separating blocks (21) are sequentially fitted to the outside of the top end of the positioning frame (5) on the corresponding side; A liquid collecting cylinder (17) is fixedly installed through one side of the top end of the fixing frame (4) close to the positioning frame (5); A guide cavity (22) is provided inside the sheet separation block (21), and a plurality of limiting holes (23) are evenly spaced through the inside of the sheet separation block (21) near the middle of the stacking plate (6), and a piston ejector pin (24) is provided inside each limiting hole (23) in a sliding and sealing manner; A stretch hose (18) is fixedly passed through the top end of each of the liquid collecting cylinders (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); A limit cylinder (7) is fixedly installed on the top of the fixed frame (4), and a piston column (8) is installed in the internal sliding seal of the limit cylinder (7). The top of the piston column (8) is fixed to the bottom end of the stacking plate (6). An air pump (9) is fixedly provided on one side of the top of the fixed frame (4), and the output end of the air pump (9) is installed inside the bottom end of the limit cylinder (7). The exhaust cleaning component includes a spring exhaust pipe (38) and a nozzle pipe (46). One end of the spring exhaust pipe (38) is installed inside the bottom end of the limit cylinder (7). The nozzle pipe (46) is fixedly installed on the outside of one side of the stacking plate (6) through a bracket. The output end of the spring exhaust pipe (38) is connected and fixed to the input end of the nozzle pipe (46). A sealing valve (39) is fixed inside one side of the spring exhaust pipe (38), and the top end of the sealing valve (39) is fixed outside the bottom end of the stacking plate (6).

2. The flexible feeding device for vacuum board processing according to claim 1, characterized in that: Several of the spreading blocks (21) are L-shaped when viewed from above, and a threaded block (14) is provided on the outside of the threaded rod (11) for threaded connection, a sprocket 2 (12) is fixedly installed on the bottom end of the threaded rod (11), a sprocket 1 (10) is fixedly provided on the side of the rotating column (3) close to the sprocket 2 (12), and a chain (13) is provided between the sprocket 1 (10) and the sprocket 2 (12) for transmission connection.

3. The flexible feeding device for vacuum plate processing according to claim 2, characterized in that: The threaded block (14) is fixedly mounted with a connecting frame (15) on the outside of the side close to the positioning frame (5), and the connecting frame (15) is longitudinally fixedly mounted with a piston rod (16) on the outside of the top side close to the liquid collecting cylinder (17). The piston end of the piston rod (16) is slidingly sealed and mounted inside the liquid collecting cylinder (17) on the corresponding side. A mounting block (19) is provided through the outside of the side close to the connecting frame (15), and both sides of the top of the mounting block (19) are longitudinally fixedly mounted with a resistance rod (20). The top of the resistance rod (20) is slidably mounted 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).

4. The flexible feeding device for vacuum plate processing according to claim 3, characterized in that: The outer side of the resisting rod (20) located at the top of the mounting block (19) is provided with a return spring (25), and the two ends of the return spring (25) are respectively installed at the top of the mounting block (19) and one side of the inner wall of the top of the fixing frame (4).

5. The flexible feeding device for vacuum board processing according to claim 1, characterized in that: The plain plate feeding assembly includes a stepper motor (28) and a turntable (29), wherein the stepper motor (28) is fixedly mounted inside the mounting box (27), and the turntable (29) is fixedly mounted outside the output end of the stepper motor (28). A guide frame (30) is fixedly mounted on the outside of one side of the mounting box (27) close to the support frame (37), and a support frame (31) is fixedly mounted on the outside of one side of the guide frame (30). A plurality of suction cups (32) are fixedly mounted at equal intervals on one side of the support frame (31), and a movable plate (33) is horizontally penetrated and slidably engaged inside one side of the support frame (31), and an arc groove (34) is penetrated inside the one side of the turntable (29) close to the movable plate (33).

6. The flexible feeding device for vacuum board processing according to claim 5, characterized in that: A positioning column (35) is fixedly installed on the outside of one side of the movable plate (33) close to the arc groove (34), and one end of the positioning column (35) is installed inside one side of the arc groove (34). The end of the movable plate (33) away from the positioning column (35) is fixedly installed through a bracket and the top of the supporting bracket (37) on the corresponding side, and the supporting bracket (37) is arranged in a C shape when viewed from the side.

7. The flexible feeding device for vacuum board processing according to claim 1, characterized in that: A gear (40) is fixedly installed on the outside of one end of the valve stem of the sealing valve (39), and a sliding seat (41) is fixedly passed through the inside of the stacking plate (6) near the gear (40) in the longitudinal direction. A rack (42) is installed on one side of the sliding seat (41) in a longitudinal sliding engagement manner. One side of the rack (42) is meshed with one side of the gear (40). A pressure plate (43) is fixed to the top of the rack (42). A guide rod (44) is fixed to the bottom end of the rack (42). The bottom end of the guide rod (44) is passed through and slidably installed on 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 guide rod (44), and the two ends of the compression spring (45) are respectively installed on the bottom wall of the sliding seat (41) and one side of the bottom surface of the rack (42).

8. A feeding method for a flexible feeding device for processing vacuum plain panels, according to any one of claims 1 to 7, characterized in that: The steps include: S1: First, use an electric forklift to stably pick up the blank boards that have been stacked in fixed specifications in the automated warehouse. After the forklift drives to the feeding station, the height is precisely controlled by the hydraulic lifting device to place the blank board stack horizontally on the upper end of the stacking board (6); S2: The servo drive (2), the rotating column (3) and the blank board feeding assembly are then operated to stably absorb the stacked blank boards and then transfer them to the top of the ring conveyor (1), thereby completing the feeding operation during vacuum blank board processing; S3: When the rough surface blank board is sucked and fed, the stacking and separating assembly can be operated to extract and lift the blank board from the stack, so that the subsequent support frame (37) can gather and support the bottom of the single blank board, thereby completing the suction and feeding of the rough blank board; S4: When the feeding of a stack of raw boards at the upper end of the stacking plate (6) is completed, the top of the stacking plate (6) no longer has the squeezing force of the raw boards, thereby triggering the automatic operation of the exhaust cleaning component, thereby blowing and cleaning the impurities on the stacking surface of the stacking plate (6), so as to avoid the residual impurities on the top of the stacking plate (6) damaging the bottom surface of the raw boards when the raw boards are subsequently stacked and fed.

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