An uninterrupted automatic sanding production line

Abstract

The present invention discloses an uninterrupted automatic sanding production line, which includes a supporting plate-feeding hydraulic roller elevator, a sheet material automatic feeder, a first plate-feeding roller conveyor, a first sander, a second plate-feeding roller conveyor, a rotary flipping integrated machine, a second sander, an outboard roller conveyor, a sheet material receiver, a first hydraulic roller outboard elevator, a second outboard hydraulic roller elevator, and a servo control system for controlling the operating states of each device; the automatic feeder transfers the sheet material onto the first plate-feeding roller conveyor and transports it into the first sander, the second plate-feeding roller conveyor is used to transport the wooden board to the rotary flipping integrated machine, the rotary flipping integrated machine flips the sheet material and transports the flipped wooden board into the second sander, the second sander performs secondary sanding treatment on the other side of the sheet material, and the sheet material receiver is used to stack and level the sheet material and place the leveled sheet material on the first hydraulic roller outboard elevator.

Description

Technical Field

[0001] The present invention relates to the field of wood processing equipment, and particularly to an uninterrupted automatic sanding production line. Background Art

[0002] Wood boards are made of complete wood. These boards are strong, durable, and have natural textures, making them an excellent choice in decoration. In addition, wood boards are also widely used in modern architecture, furniture, and decoration industries. Wood boards have various advantages such as environmental protection, light weight, and high productivity, and are thus loved by people. During the wood board processing, especially in the field of decorative wood boards or where strict requirements are imposed on both sides of the wood board, production enterprises will perform high-quality processing on both sides of the wood board. During the wood board processing, multiple processing procedures of the wood board are involved. During the surface sanding process of the wood board, both sides of the wood board need to be sanded. This process requires multiple transfers and feeding of the wood board. In the prior art, quite a number of manufacturers still use manual handling to transport the wood board. Some manufacturers use transport trolleys to rotate the wood board, which reduces the labor intensity of feeding the wood board to a certain extent. There are also some manufacturers that use rotating rollers to transfer the wood board. This transfer method further improves the feeding efficiency of the wood board. However, there are also objective technical defects in using rotating rollers to transport the wood board. When the wood board on the rotating roller is exhausted, new wood boards need to be replenished. This requires the operator to pause the transportation of the rotating roller, transport the replenished wood board to the rotating roller, and then restart the operation of the rotating roller to continue transporting the wood board. This process causes a short-term idling of the production line, which affects the front-end and back-end process beats and reduces the production capacity. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an uninterrupted automatic sanding production line with stable operation and automatic production line operation, aiming at the above-mentioned defects of the prior art.

[0004] The object of the present invention is achieved by the following technical solutions. An uninterrupted automatic sanding production line includes a sanding production line body for automatically sanding boards. The sanding production line body mainly includes a first feeding hydraulic roller elevator, a second feeding hydraulic roller elevator, a board automatic loading machine, a first feeding roller conveyor, a first sander, a second feeding roller conveyor, a rotating and flipping integrated machine, a second sander, an outboard roller conveyor, a board receiver, a first hydraulic roller outboard elevator, a second outboard hydraulic roller elevator, and a servo control system that is data-connected to each device within the sanding production line body and is used to control the operating states of each device. The first feeding hydraulic roller elevator and the second feeding hydraulic roller elevator are used to transport and lift the stacked wooden boards to the height of the first feeding conveyor line. The automatic loading machine transfers the boards to the first feeding roller conveyor, and the first feeding roller conveyor transports the boards into the first sander. The first sander performs a primary sanding treatment on one side of the board. The second feeding roller conveyor is used to transport the once-sanded board to the rotating and flipping integrated machine. The rotating and flipping integrated machine flips the board and transports the flipped board into the second sander. The second sander sands the other side of the board. The outboard roller conveyor is connected to the discharge end of the second sander and transports the sanded board to the board receiver. The board receiver is used to stack and level the boards and place the leveled boards on the first hydraulic roller outboard elevator. The first hydraulic roller outboard elevator is used to transport the boards to the second outboard hydraulic roller elevator for discharging.

[0005] Further, the board automatic loading machine mainly includes a frame and a clamping and buffering device, a vacuum adsorption device, and a handling device arranged on the frame. Gantry frames are arranged on both sides of the frame. A first driving mechanism for driving the clamping and buffering device to move up and down is arranged on the gantry frame. An upper feeding bracket that can move horizontally to clamp the wooden board is arranged on the clamping and buffering device through a telescopic cylinder. The vacuum adsorption device is arranged on the handling device and can move back and forth under the action of the handling device to adsorb and transport the wooden board on the clamping and buffering device to the first feeding roller conveyor.

[0006] Further, the rotary and flipping integrated machine mainly comprises a transfer conveyor, a belt conveyor, a discharging conveyor, and a rotary and flipping device body disposed between the transfer conveyor and the belt conveyor; the rotary and flipping device body comprises a rotary mechanism and a flipping mechanism which are arranged in a matching manner, a reduction motor for driving the rotary mechanism to rotate is arranged on the rotary mechanism, and a flipping cylinder for driving the flipping mechanism to move up and down is arranged on the flipping mechanism; when a wooden board is conveyed to the position of the rotary mechanism under the action of the transfer conveyor, the rotary mechanism lifts and rotates the wooden board on the transfer conveyor by about 120°, and the wooden board drops onto the flipping mechanism under the action of gravity and inertia. The flipping mechanism moves downward to flip the rotated wooden board and convey the flipped wooden board to the discharging conveyor under the action of the belt conveyor.

[0007] Further, the board receiver mainly comprises a frame, a blanking buffer device and a board correction device arranged on the frame. Gantry frames are arranged on both sides of the frame, and a second driving mechanism for driving the blanking buffer device to move up and down is arranged on the gantry frames. A blanking bracket capable of moving horizontally to clamp a wooden board is arranged on the blanking buffer device through a telescopic cylinder. A correction push plate is arranged on the board correction device, and the wooden board on the blanking buffer device is corrected to be flush by means of the push plate. Moreover, after the wooden board is corrected to be flush, the second driving mechanism can drive the blanking buffer device to descend by the height stroke of one board to continuously receive subsequent wooden boards.

[0008] Further, the clamping buffer device mainly comprises a vertically arranged clamping buffer bracket and a loading bracket horizontally arranged at the bottom of the clamping buffer bracket. A telescopic cylinder is arranged on the clamping buffer bracket and drives the loading bracket to move horizontally relative to the clamping buffer bracket to clamp a wooden board. A clamping buffer guiding roller device which is slidably connected to the side wall of the loading bracket is arranged at the bottom of the clamping buffer bracket through a bottom plate. The clamping buffer bracket is in transmission connection with the first driving mechanism through a lead screw and can move up and down under the action of the first driving mechanism. The vacuum adsorption device mainly comprises a fixing plate, a connecting plate, and a plurality of vacuum suction cups fixedly arranged at the bottom of the connecting plate. A telescopic cylinder which is in transmission connection with the connecting plate and can drive the connecting plate to move up and down is arranged at the top of the fixing plate. A plurality of guide rods are vertically arranged on the fixing plate and are connected to the connecting plate through the guide rods. A vacuum valve and a breaking valve are arranged on the connecting plate. The handling device mainly comprises a guide rail arranged along the length direction of the frame and a third driving mechanism arranged on the frame to drive the vacuum adsorption device to move back and forth relative to the guide rail. The fixing plate of the vacuum adsorption device is arranged on the guide rail through a slider. The third driving mechanism mainly comprises a motor and a conveyor belt which is in transmission connection with the output end of the motor. A roller matched with the conveyor belt is arranged on one side of the frame away from the motor. The fixing plate is arranged on the conveyor belt through a connecting piece and can drive the vacuum adsorption device to move synchronously along with the movement of the conveyor belt.

[0009] Furthermore, the rotating mechanism mainly includes a rotating shaft and two groups of rotating arm frames arranged on the rotating shaft, the rotating arm frame includes three rotating arms radially arranged on the rotating shaft with the rotating shaft as the axis, and the angle between two adjacent rotating arms is 120°, and a support block for supporting the wooden board during rotation is arranged on the lower side wall of the rotating arm; the rotating mechanism is provided with a braking mechanism for braking the rotating shaft once every time the rotating shaft rotates 120° so that the rotating arm frame stops immediately; the flipping mechanism includes a connecting shaft and two flipping arms arranged on the connecting shaft, and the flipping arms are staggered with the rotating arm frame, the bottom of the flipping arm is fixedly connected to the movable end of the flipping cylinder and moves up and down under the drive of the flipping cylinder, and the connecting shaft is arranged on the support seat through a bearing.

[0010] Furthermore, the unloading cache device mainly includes a vertically arranged unloading cache bracket and a unloading bracket transversely arranged at the bottom of the unloading cache bracket, the telescopic cylinder is arranged on the unloading cache bracket and drives the unloading bracket to move transversely relative to the unloading cache bracket to clamp the wooden board, the bottom of the unloading cache bracket is provided with a clamping cache guide roller device slidingly connected to the side wall of the unloading bracket through the bottom plate, and the unloading cache bracket is provided with a lateral guide roller device and a forward guide roller device slidingly connected to the side wall of the portal frame; the unloading cache bracket is connected to the second driving mechanism through a screw rod and can move up and down under the action of the second driving mechanism.

[0011] Furthermore, the correction push plate includes lateral positioning baffles and lateral correction baffles respectively arranged on the two long sides of the frame along the length direction of the frame, and forward positioning baffles and forward correction baffles respectively arranged on the two wide sides of the frame along the width direction of the frame; the lateral positioning baffles and the forward positioning baffles are respectively fixed on the corresponding sides of the frame, and the lateral correction baffles and the forward correction baffles are respectively arranged on the corresponding sides of the frame by telescopic cylinders and can be moved back and forth to the positioning baffles on the corresponding sides under the drive of the telescopic cylinder to correct and level the wooden boards on the unloading buffer device.

[0012] Furthermore, the first driving mechanism and the second driving mechanism each include a driving motor and two transmission shafts respectively connected to the output ends of the driving motor through bevel gears. The end of the transmission shaft away from the driving motor is connected to the screw through a bevel gear and drives the screw to rotate to respectively drive the clamping cache device and the unloading cache device to move up and down.

[0013] Furthermore, the first board-feeding roller conveyor, the second board-feeding roller conveyor, the transfer conveyor, the discharging conveyor, and the board-out roller conveyor all include conveyor rollers and drive motors for driving the conveyor rollers to rotate, and baffles for guiding and aligning the wooden boards are provided on the first board-feeding roller conveyor, the second board-feeding roller conveyor, the transfer conveyor, the discharging conveyor, and the board-out roller conveyor.

[0014] The beneficial technical effects of the present invention are as follows: The present invention is composed of a first board-feeding hydraulic roller elevator, a second board-feeding hydraulic roller elevator, a board automatic loading machine, a first board-feeding roller conveyor, a first sanding machine, a second board-feeding roller conveyor, a rotary and flipping integrated machine, a second sanding machine, a board-out roller conveyor, a board receiver, a first hydraulic roller board-out elevator, a second board-out hydraulic roller elevator, and a servo control system that is data-connected to each device in the sanding production line body and used to control the operating states of each device; among them, the board automatic loading machine transfers the wooden boards through the cooperation of a clamping and buffering device, a vacuum adsorption device, and a handling device. First, the clamping and buffering device clamps and lifts some stacked wooden boards to an appropriate height, the vacuum adsorption device adsorbs the topmost wooden board on the clamping and buffering device and transports the wooden board to the processing line under the drive of the handling device. The clamping and buffering device plays a role in clamping and buffering, so that the operation of the entire production line can be made more smooth without interrupting the operation of the production line, thereby improving the feeding efficiency of transporting wooden boards. Moreover, this feeding method has a strong rhythm, and the feeding interval time of each transported wooden board can be adjusted according to the working speed of the processed wooden boards, and it will not cause the bad phenomenon of material accumulation due to sufficient feeding; the rotary and flipping integrated machine flips the wood through a rotary mechanism and a flipping mechanism that are provided in a supporting manner. The rotary mechanism lifts and rotates the wooden board through a rotary support arm frame, and the flipping mechanism picks up the wood at the corresponding position and flips it to the other side. The actions of the two devices are coherent, there is no phenomenon of accumulating wooden boards, and the swaying of the wooden boards is effectively reduced, thereby protecting the surface of the wooden boards; the board receiver can stack the wooden boards transported to the blanking buffer device after production through a blanking buffer device and a board correction device. The board correction device can correct and align the wooden boards on the blanking buffer device, ensuring the neatness when stacking the wooden boards, saving time for the subsequent discharging process. The working beats of the entire production line are orderly, the operation is stable and smooth, the whole process is automated, without manual intervention, maximizing the use of processing time, and greatly improving the production efficiency. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 is a schematic diagram of the overall structure of the other side of the present invention;

[0017] Figure 3Schematic structural diagram of the automatic sheet feeding machine of the present invention;

[0018] Figure 4 Schematic structural diagram of the vacuum adsorption device of the present invention;

[0019] Figure 5 Schematic structural diagram of the rotary and flipping integrated machine of the present invention;

[0020] Figure 6 Schematic structural diagram of the sheet receiver of the present invention;

[0021] Figure 7 Schematic structural diagram of the other side of the sheet receiver of the present invention; Detailed implementation manners

[0022] To enable those of ordinary skill in the art to more clearly understand the purpose, technical solutions and advantages of the present invention, the following further elaborates the present invention in conjunction with the accompanying drawings and embodiments.

[0023] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "lateral", "vertical", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or component referred to must have a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0024] Such as Figure 1-7As shown in the figure, an uninterrupted automatic sanding production line according to the present invention comprises a sanding production line body for automatically sanding sheets. The sanding production line body mainly includes a first feeding hydraulic roller elevator 11, a second feeding hydraulic roller elevator 12, a sheet automatic loading machine 2, a first feeding roller conveyor 13, a first sander 3, a second feeding roller conveyor 14, a rotary flipping integrated machine 4, a second sander 5, an unloading roller conveyor 15, a sheet receiver 6, a first hydraulic roller unloading elevator 16, a second unloading hydraulic roller elevator 17, and a servo control system 7 which is data-connected to each device in the sanding production line body and used to control the operating status of each device; the first feeding hydraulic roller elevator 11 and the second feeding hydraulic roller elevator 12 are used to transport and lift the stacked wooden boards to the height of the first feeding roller conveyor 13, and the automatic loading machine 2 transfers the sheets onto the first feeding roller conveyor 13, and the first feeding roller conveyor 13 transports the sheets into the first sander 3, and the first sander 3 performs a first sanding treatment on one side of the sheets. The second feeding roller conveyor 14 is used to transport the once-sanded wooden boards to the rotary flipping integrated machine 4, and the rotary flipping integrated machine 4 flips the sheets and transports the flipped wooden boards into the second sander 5, and the second sander 5 performs a sanding treatment on the other side of the sheets. The unloading roller conveyor 15 is connected to the discharge end of the second sander 2 and transports the sanded wooden boards to the sheet receiver 6. The sheet receiver 6 is used to stack and level the sheets and place the leveled sheets on the first hydraulic roller unloading elevator 16, and the first hydraulic roller unloading elevator 16 is used to transport the sheets to the second unloading hydraulic roller elevator 17 for discharging.

[0025] Refer to Figure 3 As shown in the figure, the sheet automatic loading machine 2 mainly includes a frame and a clamping buffer device 21, a vacuum adsorption device 22, and a handling device 23 arranged on the frame. Gantry frames are arranged on both sides of the frame, and a first driving mechanism 24 for driving the clamping buffer device 21 to move up and down is arranged on the gantry frames. An upper loading bracket 211 which can move horizontally to clamp the wooden boards is arranged on the clamping buffer device 21 through a telescopic cylinder. The vacuum adsorption device 22 is arranged on the handling device 23 and can move back and forth under the action of the handling device 23 to adsorb and transport the wooden boards on the clamping buffer device 21 onto the first feeding roller conveyor 13.

[0026] Refer to Figure 3-4As shown, the clamping buffer device 21 mainly includes a vertically arranged clamping buffer bracket 212 and a loading bracket 211 arranged horizontally at the bottom of the clamping buffer bracket 212, the telescopic cylinder is arranged on the clamping buffer bracket 212 and drives the loading bracket 211 to move horizontally relative to the clamping buffer bracket 212 to clamp the wooden board, and the bottom of the clamping buffer bracket 212 is provided with a clamping buffer guide roller device 81 slidably connected to the side wall of the loading bracket 211 through a bottom plate 213; the clamping buffer bracket 212 is transmission-connected to the first driving mechanism 24 through a screw rod and can move up and down under the action of the first driving mechanism 24; the vacuum adsorption device 22 mainly includes a fixing plate 221, a connecting plate 222 and a fixing plate 221 arranged on the connecting plate There are several vacuum suction cups 223 at the bottom of the connecting plate 222, and a telescopic cylinder is arranged on the top of the fixed plate 221 which is transmission-connected with the connecting plate 222 and can drive the connecting plate 222 to move up and down. Several guide rods 224 are vertically penetrated on the fixed plate 221 and are connected with the connecting plate 222 through the guide rods 224. A vacuum valve 225 and a destroying valve 226 are arranged on the connecting plate 222. When the vacuum suction cup 223 is close to the wooden board and absorbs the wooden board, the vacuum valve 225 is started, and the vacuum valve 225 can make the vacuum suction cup 233 absorb the wooden board. After the absorbed wooden board is transferred to a predetermined work station, the destroying valve 226 is started, and the destroying valve 226 generates air in the vacuum suction cup 223, so that the vacuum suction cup 223 removes the wooden board.

[0027] The transport device 23 mainly includes a guide rail 231 arranged along the length direction of the frame and a third driving mechanism 232 arranged on the frame 231 to drive the vacuum adsorption device 22 to move forward and backward relative to the guide rail 231. The fixed plate 221 of the vacuum adsorption device 22 is arranged on the guide rail 231 through a slider 227; the third driving mechanism 232 mainly includes a motor and a conveyor belt 233 that is transmission-connected to the output end of the motor. A roller 234 that is matched with the conveyor belt 233 is arranged on the side of the frame away from the motor. The fixed plate 221 is arranged on the conveyor belt 233 through a connecting piece and can drive the vacuum adsorption device 22 to move synchronously with the movement of the conveyor belt 233.

[0028] The combination of the clamping buffer device 21, the vacuum adsorption device 22 and the handling device 23 is used to transfer the wooden boards. First, the clamping buffer device 21 clamps and lifts part of the stacked wooden boards to an appropriate height. The vacuum adsorption device 22 adsorbs the topmost wooden board on the clamping buffer device and transports the wooden board to the processing line under the drive of the handling device 23. The clamping buffer device 21 plays the role of clamping and buffering, so that the operation of the entire production line can run more smoothly without interrupting the operation of the assembly line, thereby improving the feeding efficiency of transferring the wooden boards. Moreover, this feeding method has a strong rhythm and can adjust the feeding interval time for each transferred wooden board according to the operation speed of processing the wooden boards, and will not cause the bad phenomenon of feeding accumulation due to sufficient feeding.

[0029] Refer to Figure 5 As shown, the rotary and flipping integrated machine 4 mainly includes a transfer conveyor 41, a belt conveyor 42, an output conveyor 43 and a rotary and flipping device body arranged between the transfer conveyor 41 and the belt conveyor 42; the rotary and flipping device body includes a rotary mechanism 44 and a flipping mechanism 45 which are arranged in a matching manner. A reduction motor 441 for driving the rotary mechanism 44 to rotate is arranged on the rotary mechanism 44, and a flipping cylinder 451 for driving the flipping mechanism 45 to move up and down is arranged on the flipping mechanism 45; when the wooden board is conveyed to the position of the rotary mechanism 44 under the action of the transfer conveyor 41, the rotary mechanism 44 lifts and rotates the wooden board on the transfer conveyor 41 by about 120°. The wooden board falls onto the flipping mechanism 45 under the action of gravity and inertia, and the flipping mechanism 45 moves downward to flip the rotated wooden board and convey the flipped wooden board to the output conveyor 43 under the action of the belt conveyor 42.

[0030] Refer to Figure 5 As shown, the rotary mechanism 44 mainly includes a rotating shaft and two groups of rotary support arm frames arranged on the rotating shaft. The rotary support arm frame includes three rotary support arms 442 radially arranged on the rotating shaft with the rotating shaft as the axis, and the angle between adjacent two rotary support arms 442 is 120°. A support block 443 for supporting the wooden board during rotation is arranged on the lower side wall of the rotary support arm 442; a braking mechanism 444 is arranged on the rotary mechanism 44 to brake the rotating shaft once every 120° rotation of the rotating shaft so that the rotary support arm frame stops immediately; the flipping mechanism 45 includes a connecting shaft and two flipping support arms 452 arranged on the connecting shaft, and the flipping support arms 452 are arranged in a staggered manner with the rotary support arm frame. The bottom of the flipping support arm 452 is fixedly connected to the movable end of the flipping cylinder 451 and moves up and down under the drive of the flipping cylinder 451, and the connecting shaft is arranged on the support seat through a bearing.

[0031] When the wooden board is transported to the working area of ​​the rotating mechanism of the transfer conveyor, the sensor response is triggered, and the reduction motor drives the rotating support arm to rotate and lift the wooden board. When it rotates 120°, it triggers the response of another sensor, and the brake valve of the braking mechanism is started to brake the turntable, so that the rotating support arm stops immediately. At this time, the wooden board slides onto the flip support arm in the extended state due to the rotational inertia. Then the sensor on the flip mechanism triggers and drives the flip cylinder to retract, so that the flip support arm and the wooden board fall at the same time; when the wooden board falls onto the belt conveyor, it triggers a sensor response on the belt conveyor and keeps the flip cylinder in a retracted state through the system. The wooden board is transported to the assembly line next to it until the sensor detects that there is no wooden board, and feeds back the signal to the control system, and drives the flip cylinder to extend through the control system, so that the flip support arm returns to a high position and stands by and reciprocates.

[0032] Reference Figure 6-7 As shown, the plate receiving machine 6 mainly includes a frame and a material unloading buffer device 61 and a plate correction device 62 arranged on the frame. A gantry is arranged on both sides of the frame, and a second driving mechanism 63 for driving the material unloading buffer device 61 to move up and down is arranged on the gantry. The material unloading buffer device 61 is provided with a material unloading bracket 611 which can move laterally to clamp the wooden board through a telescopic cylinder. The plate correction device 62 is provided with a correction push plate, and the wooden board on the material unloading buffer device 61 is corrected and flushed by the push plate, and the second driving mechanism 63 can drive the material unloading buffer device 61 to descend a height stroke of a board after the wooden board is corrected and flushed, so as to continue to receive subsequent wooden boards.

[0033] Reference Figure 6-7 As shown, the unloading buffer device 61 mainly includes a vertically arranged unloading buffer bracket 612 and a unloading bracket 611 arranged horizontally at the bottom of the unloading buffer bracket 612, the telescopic cylinder is arranged on the unloading buffer bracket 612 and drives the unloading bracket 611 to move horizontally relative to the unloading buffer bracket 612 to clamp the wooden board, the bottom of the unloading buffer bracket 612 is provided with a clamping buffer guide roller device 81 slidingly connected to the side wall of the unloading bracket 611 through the bottom plate, and the unloading buffer bracket 612 is provided with a lateral guide roller device 82 and a forward guide roller device 83 slidingly connected to the side wall of the portal frame; the unloading buffer bracket 612 is transmission connected to the second driving mechanism 63 through a screw rod and can move up and down under the action of the second driving mechanism 63.

[0034] Reference Figure 6-7As shown in the figure, the calibration push plate includes lateral positioning baffles 621 and lateral calibration baffles 622 respectively arranged on two long sides of the frame along the length direction of the frame, and forward positioning baffles 623 and forward calibration baffles 624 respectively arranged on two wide sides of the frame along the width direction of the frame; the lateral positioning baffles 621 and the forward positioning baffles 623 are respectively fixedly arranged on the corresponding sides of the frame, and the lateral calibration baffles 622 and the forward calibration baffles 624 are respectively arranged on the corresponding sides of the frame through telescopic cylinders and can move back and forth towards the positioning baffles on the corresponding sides under the drive of the telescopic cylinders to calibrate and level the wooden boards on the blanking buffer device 61.

[0035] During operation, after being sanded, the wooden board continues to move forward to the blanking bracket of the blanking buffer device 21. At this time, the telescopic cylinder is driven to extend so that the calibration push plate calibrates and levels the wooden board. Then, the second driving mechanism drives the blanking buffer device to descend by the height stroke of one board to continue receiving subsequent wooden boards, and then the calibration push plate continues to calibrate and level the wooden boards. When the bottom surfaces of N received wooden boards are lower than the top surface of the hydraulic lifting conveyor at a high position, the telescopic cylinder drives the blanking bracket to retract, so that the received wooden boards can be smoothly placed on the hydraulic lifting conveyor. At the same time, this blanking buffer device rises and stands by and repeats the above process.

[0036] Refer to Figure 3 and 6 As shown in the figure, the first driving mechanism 24 and the second driving mechanism 63 both include a driving motor and two transmission shafts respectively connected to the output end of the driving motor through bevel gears. The ends of the transmission shafts far from the driving motor are connected to the lead screws through bevel gears and drive the lead screws to rotate to drive the clamping buffer device 21 and the blanking buffer device 61 to move up and down respectively.

[0037] Refer to Figure 1 and 5 As shown in the figure, the first feeding roller conveyor 12, the second feeding roller conveyor 13, the transfer conveyor 41, the discharging conveyor 43 and the discharging roller conveyor 15 all include conveying rollers and driving motors for driving the conveying rollers to rotate, and baffles for guiding and aligning the wooden boards are arranged on the first feeding roller conveyor 12, the second feeding roller conveyor 13, the transfer conveyor 41, the discharging conveyor 43 and the discharging roller conveyor 15.

[0038] The present invention is composed of a first feeding hydraulic roller elevator, a second feeding hydraulic roller elevator, a sheet automatic loading machine, a first feeding roller conveyor, a first sanding machine, a second feeding roller conveyor, a rotary and flipping integrated machine, a second sanding machine, an unloading roller conveyor, a sheet receiver, a first hydraulic roller unloading elevator, a second unloading hydraulic roller elevator, and a servo control system that is data-connected to each device within the sanding production line body and is used to control the operating states of each device; among them, the sheet automatic loading machine transports the wooden boards through the combination of a clamping buffer device, a vacuum adsorption device, and a handling device. First, the clamping buffer device clamps and lifts a part of the stacked wooden boards to an appropriate height, the vacuum adsorption device adsorbs the topmost wooden board on the clamping buffer device and transports the wooden board to the processing line under the drive of the handling device. The clamping buffer device plays the role of clamping and buffering, so that the operation of the entire production line can be made more smooth without interrupting the operation of the production line, thereby improving the feeding efficiency of transporting wooden boards. Moreover, this feeding method has a strong rhythm, and the feeding interval time of each transported wooden board can be adjusted according to the working speed of the processed wooden boards, without causing the bad phenomenon of material accumulation due to sufficient feeding; the rotary and flipping integrated machine flips the wood through a rotary mechanism and a flipping mechanism arranged in a supporting manner. The rotary mechanism lifts and rotates the wooden board through a rotary support arm, and the flipping mechanism picks up the wood at the corresponding position and flips it to the other side. The actions of the two devices are coherent, there is no phenomenon of accumulated wooden boards, and the swaying of the wooden boards is effectively reduced, thereby protecting the surface of the wooden boards; the sheet receiver can stack the wooden boards transported to the blanking buffer device after production through a blanking buffer device and a sheet correction device. The sheet correction device can correct and level the wooden boards on the blanking buffer device, ensuring the neatness when the wooden boards are stacked, saving time for the subsequent unloading process. The entire production line process has an orderly rhythm, operates smoothly and smoothly, is fully automated, does not require manual intervention, maximizes the use of processing time, and greatly improves production efficiency.

[0039] The specific embodiments described herein are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An uninterrupted automatic sanding production line, comprising a sanding production line body for automatically sanding a board, characterized in that: The main body of the sanding production line mainly includes a first feeding hydraulic roller elevator, a second feeding hydraulic roller elevator, a board automatic loading machine, a first feeding roller conveyor, a first sander, a second feeding roller conveyor, a rotary flipping machine, a second sander, an outboard roller conveyor, a board receiver, a first hydraulic roller outboard elevator, a second outboard hydraulic roller elevator, and a servo control system that is data-connected to each device within the main body of the sanding production line and is used to control the operating states of each device; the first feeding hydraulic roller elevator and the second feeding hydraulic roller elevator are used to transport and lift the stacked wooden boards to the height of the first roller conveyor line, the automatic loading machine transfers the boards to the first feeding roller conveyor, and the first feeding roller conveyor transports the boards into the first sander. The first sander performs a primary sanding treatment on one side of the board. The second feeding roller conveyor is used to transport the board after the primary sanding treatment to the rotary flipping machine. The rotary flipping machine flips the board and transports the flipped board into the second sander. The second sander performs a secondary sanding treatment on the other side of the board. The outboard roller conveyor is connected to the discharge end of the second sander and transports the sanded board to the board receiver. The board receiver is used to stack and level the boards and place the leveled boards on the first hydraulic roller outboard elevator. The first hydraulic roller outboard elevator is used to transport the boards to the second outboard hydraulic roller elevator for discharging; the board automatic loading machine mainly includes a frame and a clamping buffer device, a vacuum adsorption device, and a handling device arranged on the frame. Gantry frames are arranged on both sides of the frame. A first driving mechanism for driving the clamping buffer device to move up and down is arranged on the gantry frame. An upper feeding bracket that can move horizontally to clamp the wooden board is arranged on the clamping buffer device through a telescopic cylinder. The vacuum adsorption device is arranged on the handling device and can move back and forth under the action of the handling device to adsorb and transport the wooden board on the clamping buffer device to the first feeding roller conveyor.

2. The continuous automatic sanding production line according to claim 1, characterized in that: The rotary flipping machine mainly includes a transfer conveyor, a belt conveyor, an outboard conveyor, and a rotary flipping device body arranged between the transfer conveyor and the belt conveyor; the rotary flipping device body includes a rotary mechanism and a flipping mechanism arranged in a supporting manner. A reduction motor for driving the rotary mechanism to rotate is arranged on the rotary mechanism. A flipping cylinder for driving the flipping mechanism to move up and down is arranged on the flipping mechanism; when the wooden board is transported to the position of the rotary mechanism under the action of the transfer conveyor, the rotary mechanism lifts and rotates the wooden board on the transfer conveyor by 120°. The wooden board falls onto the flipping mechanism under the action of gravity and inertia. The flipping mechanism moves downward to flip the rotated wooden board and transports the flipped wooden board to the outboard conveyor under the action of the belt conveyor.

3. The continuous automatic sanding production line according to claim 2, wherein: The plate receiving machine mainly includes a frame and a material unloading buffer device and a plate correction device arranged on the frame. The gantry is also provided with a second driving mechanism that drives the material unloading buffer device to move up and down. The material unloading buffer device is provided with a material unloading bracket that can move laterally to clamp the wooden board through a telescopic cylinder. The plate correction device is provided with a correction push plate and the wooden board on the material unloading buffer device is corrected to be flush by the push plate. The second driving mechanism can drive the material unloading buffer device to descend a height stroke of one board after the wooden board is corrected to be flush, so as to continue to receive subsequent wooden boards.

4. The continuous automatic sanding production line according to claim 1, wherein: The clamping and caching device mainly includes a vertically arranged clamping and caching bracket and a loading bracket horizontally arranged at the bottom of the clamping and caching bracket. The telescopic cylinder is arranged on the clamping and caching bracket and drives the loading bracket to move horizontally relative to the clamping and caching bracket to clamp the wooden board. The bottom of the clamping and caching bracket is provided with a clamping and caching guide roller device slidably connected to the side wall of the loading bracket through a bottom plate; the clamping and caching bracket is transmission-connected to the first driving mechanism through a screw rod and can move up and down under the action of the first driving mechanism; the vacuum adsorption device mainly includes a fixing plate, a connecting plate and a plurality of vacuum suction cups fixedly arranged at the bottom of the connecting plate. The top of the fixing plate is provided with a connecting plate which is transmission-connected to the connecting plate and can drive the connecting plate A telescopic cylinder that moves up and down, a plurality of guide rods are vertically penetrated on the fixed plate and connected to the connecting plate through the guide rods, and a vacuum valve and a destruction valve are arranged on the connecting plate; the conveying device mainly includes a guide rail arranged along the length direction of the frame and a third driving mechanism arranged on the frame to drive the vacuum adsorption device to move forward and backward relative to the guide rail, and the fixed plate of the vacuum adsorption device is arranged on the guide rail through a slider; the third driving mechanism mainly includes a motor and a conveyor belt that is transmission-connected to the output end of the motor, and a roller that is matched with the conveyor belt is arranged on the side of the frame away from the motor, and the fixed plate is arranged on the conveyor belt through a connecting piece and can drive the vacuum adsorption device to move synchronously with the movement of the conveyor belt.

5. The continuous automatic sanding production line according to claim 2, wherein: The rotating mechanism mainly includes a rotating shaft and two groups of rotating arm frames arranged on the rotating shaft, the rotating arm frame includes three rotating arms radially arranged on the rotating shaft with the rotating shaft as the axis, and the angle between two adjacent rotating arms is 120°, and the lower side wall of the rotating arm is provided with a support block for supporting the wooden board during rotation; the rotating mechanism is provided with a braking mechanism for braking the rotating shaft once every time the rotating shaft rotates 120° so that the rotating arm frame stops immediately; the flipping mechanism includes a connecting shaft and two flipping arms arranged on the connecting shaft, and the flipping arms are staggered with the rotating arm frame, the bottom of the flipping arm is fixedly connected to the movable end of the flipping cylinder and moves up and down under the drive of the flipping cylinder, and the connecting shaft is arranged on the support seat through a bearing.

6. The continuous automatic sanding production line according to claim 3, characterized in that: The unloading buffer device mainly includes a vertically arranged unloading buffer bracket and a unloading bracket transversely arranged at the bottom of the unloading buffer bracket. The telescopic cylinder is arranged on the unloading buffer bracket and drives the unloading bracket to move transversely relative to the unloading buffer bracket to clamp the wooden board. The bottom of the unloading buffer bracket is provided with a clamping buffer guide roller device slidably connected to the side wall of the unloading bracket through a bottom plate. The unloading buffer bracket is provided with a lateral guide roller device and a forward guide roller device slidably connected to the side wall of the portal frame; the unloading buffer bracket is connected to the second driving mechanism through a screw rod and can move up and down under the action of the second driving mechanism.

7. The continuous automatic sanding production line according to claim 6, characterized in that: The correction push plate includes lateral positioning baffles and lateral correction baffles respectively arranged on the two long sides of the frame along the length direction of the frame, and positive positioning baffles and positive correction baffles respectively arranged on the two wide sides of the frame along the width direction of the frame; the lateral positioning baffles and the positive positioning baffles are respectively fixed on the corresponding sides of the frame, and the lateral correction baffles and the positive correction baffles are respectively arranged on the corresponding sides of the frame by telescopic cylinders and can be moved back and forth to the positioning baffles on the corresponding sides under the drive of the telescopic cylinder to correct and align the wooden boards on the unloading buffer device.

8. The continuous automatic sanding production line according to any one of claims 3 to 7, characterized in that: The first driving mechanism and the second driving mechanism both include a driving motor and two transmission shafts that are respectively connected to the output ends of the driving motors through bevel gears. One end of the transmission shaft away from the driving motor is connected to the screw through a bevel gear and drives the screw to rotate to respectively drive the clamping cache device and the unloading cache device to move up and down.

9. The continuous automatic sanding production line according to claim 8, wherein: The first board-feeding roller conveyor, the second board-feeding roller conveyor, the transfer conveyor, the discharging conveyor and the board-discharging roller conveyor all include conveying rollers and driving motors for driving the conveying rollers to rotate, and the first board-feeding roller conveyor, the second board-feeding roller conveyor, the transfer conveyor, the discharging conveyor and the board-discharging roller conveyor are all provided with baffles for guiding and aligning the wooden boards.

Images