Multifunctional edge grinding device for plywood processing
By designing a multi-functional edge grinding device, the problems of edge notch treatment and sawdust scattering in plywood have been solved, achieving efficient and environmentally friendly plywood processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG KEXIN BAMBOO & WOOD
- Filing Date
- 2024-04-01
- Publication Date
- 2026-06-05
Smart Images
Figure CN118046282B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of edge grinding equipment technology, and more specifically to a multifunctional edge grinding device for plywood processing. Background Technology
[0002] Plywood is a three- or multi-layered sheet material made by rotary cutting logs into veneers or slicing timber into thin sheets and then gluing them together with adhesives. In the production of plywood, there is an edge sanding process to make the edges of the board smooth and flat. Usually, sanding discs are used to sand the edges of the plywood to make them smooth.
[0003] Traditional edge grinding devices have several drawbacks when sanding plywood. Firstly, plywood is a wood material, and gaps often appear at the edges during processing. Traditional edge grinding devices cannot handle these gaps and require re-cutting the edges, which is cumbersome and affects processing efficiency. Secondly, sanding plywood produces a large amount of sawdust, which affects the processing environment. Inhaling this sawdust can harm the health of operators, and cleaning up the fine sawdust is also very inconvenient. Summary of the Invention
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a multi-functional edge grinding device for plywood processing, so as to solve the problems of traditional edge grinding devices in the background art being unable to detect and process the notches on the material edges, lacking functionality, and generating sawdust that affects the working environment and the physical and mental health of operators.
[0005] This invention provides the following technical solution: a multi-functional edge grinding device for plywood processing, comprising a first roller conveyor, a second roller conveyor connected to one side of the first roller conveyor, the first and second roller conveyors for conveying plywood components, the front of the first roller conveyor protruding beyond the front of the second roller conveyor, a lateral shifting mechanism mounted on the front of the second roller conveyor, a closed grinding mechanism connected to the output end of the lateral shifting mechanism, the closed grinding mechanism for edge grinding and chamfering of the plywood components, and a pressing mechanism connected to the top of the lateral shifting mechanism for pressing the material and for pressing the closed grinding mechanism. The sealing mechanism enables partial closed-loop grinding of the plywood main component. The closed-loop grinding mechanism includes a cooling system for reducing the temperature of the grinding end. A compression mechanism is located at the bottom of the second roller conveyor. The feed end of the compression mechanism connects to the bottom of the closed-loop grinding mechanism via a guiding mechanism. A distance sensor is fixedly installed on one side of the closed-loop grinding mechanism. A photoelectric sensor is fixedly installed on the top of the first roller conveyor. The photoelectric sensor and the distance sensor are electrically connected to a PLC controller. The PLC controller is electrically connected to the control motor of the second roller conveyor via relays and contactors. The PLC controller is also connected to the closed-loop grinding mechanism, the pressing mechanism, and the compression mechanism.
[0006] Furthermore, the enclosed grinding mechanism includes a housing, with an inlet slot extending into the interior on the back of the housing and a through slot extending into the interior on the front of the housing. A longitudinal moving arm is slidably fitted within the through slot. A groove is formed at the back end of the longitudinal moving arm, within which a rotating shaft is movably fitted. A cylindrical grinding component is fixedly connected to the side wall of the rotating shaft. An L-shaped air passage communicating with the groove at the back end of the longitudinal moving arm is formed at the top of the longitudinal moving arm on the front of the housing. A cooling mechanism is located at the top of the longitudinal moving arm and connects to the L-shaped air passage. An L-shaped connecting plate is fixedly connected to the top of the longitudinal moving arm. A sliding groove extending into the interior is formed at the top of the housing, within which a moving stage is slidably fitted. The moving stage is located within the L-shaped... The top of the connecting plate is fixedly connected, and a grinding drive motor is fixedly installed on the top of the moving platform. The output end of the grinding drive motor passes through the moving platform, the L-shaped connecting plate and is connected to the rotating shaft. A first U-shaped fixing frame is fixedly connected to the front of the cover. A first electric cylinder is fixedly installed on the front of the first U-shaped fixing frame. The output end of the first electric cylinder passes through the first U-shaped fixing frame and is connected to the front end of the longitudinal moving arm. The grinding drive motor and the first electric cylinder are electrically connected to the PLC through a relay and a contactor, respectively. A chip discharge opening for installing a material guiding mechanism is provided at the bottom of the cover. A rail groove is opened on the back of the cover. A rail is slidably sleeved in the rail groove. The rail is fixedly connected to the front of the second roller conveyor.
[0007] Furthermore, the front of the cover is provided with a connecting cylinder for connecting the lateral displacement mechanism, and the top of the inlet slot of the cover is provided with a door slot for embedding the pressing mechanism. The lateral displacement mechanism includes two end plates, and a reciprocating screw is movably sleeved on the inner side of the two end plates. A moving block is threadedly sleeved on the side wall of the reciprocating screw, and the moving block is fixedly connected to the inner wall of the connecting cylinder. A geared motor is fixedly installed on the side wall of one end plate. The output end of the geared motor passes through the end plate and is connected to the reciprocating screw. The geared motor is electrically connected to the PLC controller through a relay and a contactor.
[0008] Furthermore, the pressing mechanism includes two second U-shaped fixing frames, which are fixedly connected to the top of two end plates respectively. Each of the two second U-shaped fixing frames has a threaded shaft inside. The top end of the threaded shaft is movably sleeved with the top of the inner wall of the second U-shaped fixing frame, and the bottom end of the threaded shaft is movably sleeved with the top of the end plate. Each of the two second U-shaped fixing frames has an L-shaped moving plate slidably sleeved inside. The two L-shaped moving plates are threadedly sleeved on the side walls of the two threaded shafts respectively. A pressure plate is fixedly connected to the inner side of each of the two L-shaped moving plates. The pressure plate is embedded in a door groove and slidably sleeved within the door groove. A servo motor is fixedly installed on the top of each of the two second U-shaped fixing frames. The output shaft of the servo motor passes through the second U-shaped fixing frame and is connected to the threaded shaft. The servo motor is electrically connected to the PLC controller via a relay and a contactor.
[0009] Furthermore, rubber baffles are fixedly connected to both sides of the inner wall of the inlet groove.
[0010] Furthermore, the cooling mechanism includes a rail groove, the cold air outlet end of which is installed in an L-shaped air duct, and the air inlet end of which is connected to a high-pressure air pump via an air pipe.
[0011] Furthermore, the side wall of the cylindrical grinding component is provided with a vertical grinding surface for grinding the edge of the plywood main component, the top of the vertical grinding surface of the side wall of the cylindrical grinding component is provided with an upper inclined grinding surface for chamfering the upper edge of the plywood main component, and the bottom of the vertical grinding surface of the side wall of the cylindrical grinding component is provided with a lower inclined grinding surface for chamfering the lower edge of the plywood main component.
[0012] Furthermore, the material guiding mechanism includes a funnel, with a flexible hose fixedly connected to the bottom outlet of the funnel, and a steel fan installed at the top of the funnel. The top of the steel fan is fixedly installed to the bottom of the rotating shaft via a connecting shaft.
[0013] Furthermore, a correction and positioning mechanism is provided at the top of the first roller conveyor. The correction and positioning mechanism includes a side platform and a backing plate. The side platform and the backing plate are respectively located at the front and back ends of the conveying roller of the first roller conveyor. A side plate is fixedly connected to the top of the side platform. A second electric cylinder is fixedly installed on the back of the side plate. The output shaft of the second electric cylinder passes through the side plate and is connected to a pressure sensor. A shaft sleeve is slidably sleeved on the output shaft of the second electric cylinder. The pressure sensor is located on the inner wall of the shaft sleeve. An L-shaped push plate is fixedly connected to the front end of the shaft sleeve. Two positioning shafts are fixedly installed on the back of the L-shaped push plate. The two positioning shafts pass through the side plate. The pressure sensor is electrically connected to the PLC controller. The second electric cylinder is electrically connected to the PLC controller through a relay and a contactor.
[0014] Furthermore, the compression mechanism includes a fixed base box, inside which a material cylinder is fixedly installed. A fixed cylinder plate is fixedly connected to one side of the material cylinder inside the fixed base box. The fixed cylinder plate has a slot facing the material cylinder, and the slot extends through the top of the fixed cylinder plate. A compression end cylinder adapted to the material cylinder is slidably sleeved inside the slot of the fixed cylinder plate. A hydraulic rod is fixedly installed on the other side of the displacement material cylinder inside the fixed base box. The output end of the hydraulic rod extends through into the material cylinder and is connected to a pressure plate. The side wall of the pressure plate is in contact with the inner wall of the material cylinder. An inlet for connecting a material guiding mechanism is opened at the top of the material cylinder. A pressure relief hole extending through into the material cylinder is opened on the side wall of the material cylinder, and a filter screen is installed inside the pressure relief hole.
[0015] The technical effects and advantages of this invention are as follows:
[0016] This invention features a closed sanding mechanism that allows for localized, enclosed sanding of plywood, ensuring that all wood chips generated during sanding are contained within the housing of the closed sanding mechanism. This prevents wood chips from scattering and affecting the working environment. When the closed sanding mechanism is in operation, it can be linked with a material guiding mechanism to guide the wood chips contained within the housing into a compression mechanism for collection. The compression mechanism can then compress the collected wood chips, thereby preventing secondary pollution caused by the subsequent scattering of collected wood chips.
[0017] Based on the above, by setting a distance sensor, the edge of the plywood main component can be notched. When a notch is detected, the closed grinding mechanism automatically adjusts the grinding depth and works with the lateral shifting mechanism to repeatedly grind the edge of the plywood main component until the notch is smooth. This eliminates the need for manual notch detection and edge trimming, making the processing simpler and improving work efficiency.
[0018] By setting a specially shaped grinding end, the device can not only grind the plywood but also chamfer its edges, thus increasing its functionality. During the grinding process, the grinding end is continuously air-cooled by a cooling device to prevent damage to the plywood caused by excessively high temperatures at the grinding end, making the device suitable for long-term operation and ensuring the continuity of the grinding work. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0020] Figure 2 For the present invention Figure 1 A schematic diagram showing the disassembled structure of the enclosed grinding mechanism in the diagram;
[0021] Figure 3 For the present invention Figure 1 Schematic diagram of the transverse shifting mechanism and the pressing mechanism in the middle;
[0022] Figure 4 For the present invention Figure 1 A schematic diagram of the material guiding mechanism in the middle;
[0023] Figure 5 For the present invention Figure 1 A schematic diagram of the compression mechanism structure in the diagram;
[0024] Figure 6 For the present invention Figure 2 A schematic diagram of the cylindrical grinding component structure in the image;
[0025] Figure 7 For the present invention Figure 1 A schematic diagram of the correction and positioning mechanism in the diagram;
[0026] Figure 8 For the present invention Figure 7 The second electric cylinder and its structural breakdown diagram are shown.
[0027] The attached figures are labeled as follows: 1. First roller conveyor; 2. Second roller conveyor; 3. Correction and positioning mechanism; 4. Photoelectric sensor; 5. Lateral displacement mechanism; 6. Enclosed grinding mechanism; 7. Pressing mechanism; 8. Guiding mechanism; 9. Compression mechanism; 10. Distance sensor; 11. Plywood main component; 61. Cover; 62. Inlet groove; 63. Rubber curtain; 64. Longitudinal moving arm; 65. Rotary shaft; 66. Cylindrical grinding component; 67. L-shaped connecting plate; 68. Moving table; 69. Grinding drive motor; 610. First U-shaped fixing frame; 611. First electric cylinder; 612. Connecting cylinder; 613. Door groove; 614. Rail groove; 51. End plate; 52. 53. Reciprocating lead screw; 74. Gear motor; 75. Second U-shaped fixing frame; 76. Threaded shaft; 77. Servo motor; 78. L-shaped moving plate; 79. Pressure plate; 80. Funnel; 81. Hoses; 82. Connecting shaft; 83. Steel fan; 94. Fixed base box; 95. Material cylinder; 96. Hydraulic rod; 97. Pressure plate; 98. Fixed cylinder plate; 99. Compression end cylinder; 90. Inlet; 661. Vertical grinding surface; 662. Upper inclined grinding surface; 663. Lower inclined grinding surface; 31. Side table; 32. Side upright plate; 33. Second electric cylinder; 34. L-shaped push plate; 35. Positioning shaft; 36. Abutment plate; 37. Shaft sleeve; 38. Pressure sensor. Detailed Implementation
[0028] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[0029] Reference Figure 1 and Figure 2This invention provides a multifunctional edge grinding device for plywood processing, including a first roller conveyor 1, a second roller conveyor 2 connected to one side of the first roller conveyor 1, the first roller conveyor 1 and the second roller conveyor 2 for conveying plywood main components 11, the front of the first roller conveyor 1 protruding from the front of the second roller conveyor 2, a lateral shifting mechanism 5 installed on the front of the second roller conveyor 2, a closed grinding mechanism 6 connected to the output end of the lateral shifting mechanism 5, the closed grinding mechanism 6 for edge grinding and chamfering of the plywood main components 11, a pressing mechanism 7 connected to the top of the lateral shifting mechanism 5, the pressing mechanism 7 for pressing the material and sealing the closed grinding mechanism 6. The closed-loop grinding mechanism 6 is used to perform partial grinding of the plywood main component 11. The closed grinding mechanism 6 is equipped with a cooling mechanism for cooling the grinding end. The bottom of the second roller conveyor 2 is equipped with a compression mechanism 9. The feed end of the compression mechanism 9 is connected to the bottom of the closed grinding mechanism 6 through the material guiding mechanism 8. A distance sensor 10 is fixedly installed on one side of the closed grinding mechanism 6. A photoelectric sensor 4 is fixedly installed on the top of the first roller conveyor 1. The photoelectric sensor 4 and the distance sensor 10 are electrically connected to a PLC controller. The PLC controller is electrically connected to the control motor of the second roller conveyor 2 through relays and contactors. The PLC controller is connected to the closed grinding mechanism 6, the material pressing mechanism 7, and the compression mechanism 9.
[0030] Reference Figure 2The enclosed grinding mechanism 6 includes a housing 61. A through-feed groove 62 is provided on the back of the housing 61, penetrating into the interior. A through-groove is provided on the front of the housing 61, into which a longitudinal moving arm 64 is slidably fitted. A groove is provided at the back end of the longitudinal moving arm 64, into which a rotating shaft 65 is movably fitted. A cylindrical grinding component 66 is fixedly connected to the side wall of the rotating shaft 65. An L-shaped air passage communicating with the groove at the back end of the longitudinal moving arm 64 is provided at the top of the longitudinal moving arm 64 on the front of the housing 61. A cooling mechanism is located at the top of the longitudinal moving arm 64 and connects to the L-shaped air passage. An L-shaped connecting plate 67 is fixedly connected to the top of the longitudinal moving arm 64. A sliding groove is provided at the top of the housing 61, into which a moving table 68 is slidably fitted. 8 is fixedly connected to the top of the L-shaped connecting plate 67. A grinding drive motor 69 is fixedly installed on the top of the moving table 68. The output end of the grinding drive motor 69 passes through the moving table 68 and the L-shaped connecting plate 67 and is connected to the rotating shaft 65. A first U-shaped fixing frame 610 is fixedly connected to the front of the cover 61. A first electric cylinder 611 is fixedly installed on the front of the first U-shaped fixing frame 610. The output end of the first electric cylinder 611 passes through the first U-shaped fixing frame 610 and is connected to the front end of the longitudinal moving arm 64. The grinding drive motor 69 and the first electric cylinder 611 are electrically connected to the PLC through a relay and a contactor, respectively. A chip discharge opening for installing the material guiding mechanism 8 is provided at the bottom of the cover 61. A rail groove 614 is opened on the back of the cover 61. An inner sliding sleeve is fitted with a track, which is fixedly connected to the front of the second roller conveyor 2. During use, the output of the grinding drive motor 69 drives the rotating shaft 65 to rotate at high speed, causing the cylindrical grinding part 66 to rotate at high speed. The side wall of the cylindrical grinding part 66 contacts the edge of the plywood main part 11 to achieve the edge grinding effect. During the grinding process, the edge of the plywood main part 11 enters the inside of the cover 61 through the inlet groove 62 and is ground inside the cover 61, thereby achieving a closed grinding effect. The wood chips generated during grinding can be stored inside the cover 61 to prevent pollution to the external environment. When the distance sensor 10 detects a notch on the side of the plywood main part 11, the PLC controller controls the first electric cylinder 611 to... The output is set at a distance, at which point the longitudinal arm 64 is displaced, and the cylindrical sanding part 66 moves laterally toward the plywood main part 11, thereby adjusting the sanding depth. When the cylindrical sanding part 66 rotates at high speed to perform edge grinding, the cylindrical sanding part 66 will heat up after the device has been working for a long time. Since plywood is made of wood, excessive temperature can easily damage the wood. The cooling mechanism blows out cold air, which passes through the L-shaped air channel and sprays onto the outer surface of the cylindrical sanding part 66, thereby achieving a cooling effect. During the sanding process, the sanding end is continuously air-cooled by the cooling device, which can prevent damage to the plywood caused by excessive temperature at the sanding end of the device, making the device suitable for long-term operation and ensuring the continuity of edge grinding work.
[0031] Reference Figure 3The front of the cover 61 is provided with a connecting cylinder 612 for connecting the lateral shifting mechanism 5. The top of the inlet groove 62 of the cover 61 is provided with a door groove 613 for embedding the pressing mechanism 7. The lateral shifting mechanism 5 includes two end plates 51. A reciprocating screw 52 is movably sleeved on the inner side of the two end plates 51. A moving block is threaded on the side wall of the reciprocating screw 52. The moving block is fixedly connected to the inner wall of the connecting cylinder 612. A geared motor 53 is fixedly installed on the side wall of one end plate 51. The output end of the geared motor 53 passes through the end plate 51 and is connected to the reciprocating screw 52. The geared motor 53 is electrically connected to the PLC controller through a relay and a contactor. The output of the geared motor 53 drives the reciprocating screw 52 to rotate. Under the influence of the reciprocating thread structure, the moving block drives the connecting cylinder 612 to move laterally back and forth, thereby causing the closed grinding mechanism 6 to move laterally as a whole to grind the side of the plywood main component 11 and automatically reset.
[0032] Reference Figure 2 , 3 The pressing mechanism 7 includes two second U-shaped fixing frames 71, which are fixedly connected to the top of two end plates 51 respectively. Each second U-shaped fixing frame 71 has a threaded shaft 72 inside. The top end of the threaded shaft 72 is movably sleeved with the top of the inner wall of the second U-shaped fixing frame 71, and the bottom end of the threaded shaft 72 is movably sleeved with the top of the end plate 51. Each second U-shaped fixing frame 71 has an L-shaped movable plate 74 slidably sleeved inside. The two L-shaped movable plates 74 are threadedly sleeved on the side walls of the two threaded shafts 72 respectively. A pressure plate 75 is fixedly connected to the inner side of each L-shaped movable plate 74. The pressure plate 75 is embedded in a door groove 613 and slidably sleeved within the door groove 613. The tops of the two second U-shaped fixing frames 71 are fixedly... A servo motor 73 is installed, and the output shaft of the servo motor 73 passes through the second U-shaped fixing frame 71 and is connected to the threaded shaft 72. The servo motor 73 is electrically connected to the PLC controller through relays and contactors. In use, the servo motor 73 is controlled to drive the threaded shaft 72 to rotate. Under the influence of the threaded structure, the pressure plate 75 is moved up or down through two L-shaped moving plates 74. When the pressure plate 75 moves down, it can press the plywood main component 11 tightly to prevent the plywood main component 11 from shifting during edge grinding. At the same time, after the pressure plate 75 moves down, it can slide down from the door groove 613 and enter the board groove 62, forming a shield towards the back of the cover 61, thereby achieving a sealing effect and preventing wood chips from leaking out from the board groove 62 towards the back of the cover 61.
[0033] Reference Figure 2 Rubber baffles 63 are fixedly connected to the inner wall of the inlet groove 62 on both sides of the cover 61. By setting two rubber baffles 63, the wood chips generated during edge grinding can be prevented from leaking out from the inlet groove 62 toward both sides of the cover 61.
[0034] Reference Figure 2The cooling mechanism includes a rail groove 614. The cold air outlet end of the rail groove 614 is installed in an L-shaped air duct. The air inlet end of the rail groove 614 is connected to a high-pressure air pump through an air pipe. Due to the characteristics of the rail groove 614, when high-pressure air is introduced, cold air can be blown out to achieve the cooling effect on the cylindrical grinding part 66.
[0035] Reference Figure 6 The cylindrical grinding component 66 has a vertical grinding surface 661 on its sidewall for grinding the edge of the plywood main component 11. At the top of the vertical grinding surface 661, the cylindrical grinding component 66 has an upward-sloping grinding surface 662 for chamfering the upper edge of the plywood main component 11. At the bottom of the vertical grinding surface 661, the cylindrical grinding component 66 has a downward-sloping grinding surface 663 for chamfering the lower edge of the plywood main component 11. When the cylindrical grinding component 66 rotates at high speed for grinding, the vertical grinding surface 661 contacts the side of the plywood main component 11. To achieve the desired edge grinding effect, the edges also need to be chamfered during the plywood grinding process. Traditional edge grinding devices cannot perform edge grinding and lack functionality. In the grinding process of the cylindrical grinding part 66, the upper inclined grinding surface 662 and the lower inclined grinding surface 663 contact and grind the upper and lower edges of the plywood main part 11 respectively, thereby achieving the edge chamfering effect. By setting a special-shaped grinding end, it can perform edge chamfering on the plywood while grinding the edges, thus increasing the functionality of the edge grinding device.
[0036] Reference Figure 4 The material guiding mechanism 8 includes a funnel 81, with a flexible hose 82 fixedly connected to the bottom outlet of the funnel 81. A steel fan 84 is installed on the top of the funnel 81, and the top of the steel fan 84 is fixedly installed to the bottom of the rotating shaft 65 via a connecting shaft 83. Wood chips inside the casing 61 enter the hose 82 under the influence of gravity and are guided into the compression mechanism 9 through the hose 82. During this process, the steel fan 84 rotates at high speed with the rotating shaft 65 under the connection of the connecting shaft 83, blowing air into the funnel 81 and creating an airflow inside the hose 82. As a result, the wood chips entering the hose 82 float with the airflow, preventing the wood chips from accumulating inside the hose 82 and also accelerating the speed at which the wood chips enter the compression mechanism 9.
[0037] Reference Figure 7 , 8The first roller conveyor 1 is equipped with a correction and positioning mechanism 3 at its top. The correction and positioning mechanism 3 includes a side platform 31 and a backing plate 36. The side platform 31 and the backing plate 36 are located at the front and back ends of the conveying rollers of the first roller conveyor 1, respectively. A side upright plate 32 is fixedly connected to the top of the side platform 31. A second electric cylinder 33 is fixedly installed on the back of the side upright plate 32. The output shaft of the second electric cylinder 33 passes through the side upright plate 32 and is connected to a pressure sensor 38. A shaft sleeve 37 is slidably sleeved on the output shaft of the second electric cylinder 33. The pressure sensor 38 is located on the inner wall of the shaft sleeve 37. An L-shaped push plate 34 is fixedly connected to the front end of the shaft sleeve 37. Two positioning shafts 35 are fixedly installed on the back of the L-shaped push plate 34. The two positioning shafts 35 pass through the side upright plate 32. The pressure sensor 38 is connected to the PLC controller. The second electric cylinder 33 is electrically connected to the PLC controller via a relay and a contactor. When the first roller conveyor 1 conveys the plywood main component 11, the output of the second electric cylinder 33 drives the L-shaped push plate 34 to push the back edge of the plywood main component 11, so that the front edge of the plywood main component 11 is in contact with the back of the backing plate 36, thereby aligning the plywood main component 11 and ensuring that after the plywood main component 11 is conveyed to the top of the second roller conveyor 2, its edge can enter the enclosed grinding mechanism 6. When the second electric cylinder 33 outputs, after the L-shaped push plate 34 contacts the plywood main component 11, the pressure sensor 38 is subjected to extrusion force. When the set pressure value is detected, the PLC controller drives the second electric cylinder 33 to automatically retract, so that the L-shaped push plate 34 is reset.
[0038] Reference Figure 5 The compression mechanism 9 includes a fixed base box 91, inside which a material cylinder 92 is fixedly installed. A fixed cylinder plate 95 is fixedly connected to one side of the material cylinder 92 inside the fixed base box 91. A slot is opened on the fixed cylinder plate 95 facing the material cylinder 92, extending through the top of the fixed cylinder plate 95. A compression end cylinder 96, adapted to the material cylinder 92, is slidably fitted inside the slot of the fixed cylinder plate 95. A hydraulic rod 93 is fixedly installed on the other side of the displacement material cylinder 92 inside the fixed base box 91. The output end of the hydraulic rod 93 extends into the material cylinder 92 and connects to a pressure plate 94. The side wall of the pressure plate 94 fits against the inner wall of the material cylinder 92. An inlet 97 for connecting to the material guiding mechanism 8 is opened at the top of the material cylinder 92. The side wall of the material cylinder 92... A pressure relief hole is provided that penetrates into the inside of the feed cylinder 92. A filter screen is installed in the pressure relief hole. The wood chips generated during sanding are difficult to store. Since the waste is a small piece of wood material and is light in texture, it is very easy to scatter and cause secondary pollution during storage. After the wood chips are introduced into the feed cylinder 92 by the guide mechanism 8, after a certain amount of wood chips are collected in the feed cylinder 92, the hydraulic rod 93 drives the pressure plate 94 to move and push the wood chips into the compression end cylinder 96. The wood chips are squeezed and compressed, thereby compacting the loose wood chips in the compression end cylinder 96, thus avoiding secondary scattering and pollution of wood chips. The material can be unloaded by pulling the compression end cylinder 96 out from the clamp of the fixed cylinder plate 95 upwards.
[0039] The working principle of this invention is as follows: The plywood main component 11 is placed on top of the first roller conveyor 1 for feeding. After the plywood main component 11 reaches the top of the second roller conveyor 2, it continues to be conveyed by the second roller conveyor 2. Since the front of the first roller conveyor 1 protrudes beyond the front of the second roller conveyor 2, the grinding edge of the plywood main component 11 can protrude beyond the front of the second roller conveyor 2. When the photoelectric sensor 4 detects that the plywood main component 11 has reached the top of the second roller conveyor 2, it sends material information to the PLC controller. The PLC controller then controls the second roller conveyor 2 to stop running and controls the pressing mechanism 7 to output the material to be ground and glued. The main plywood component 11 is pressed in place. Then, the closed sanding mechanism 6 and the lateral shifting mechanism 5 are controlled to operate. The lateral shifting mechanism 5 drives the closed sanding mechanism 6 to move laterally until the edge of the plywood main component 11 enters the closed sanding mechanism 6 for sanding. The special sanding end of the closed sanding mechanism 6 can be used to sand the edge of the plywood main component 11 and simultaneously chamfer the edges. After the lateral shifting mechanism 5 moves laterally a certain distance, the closed sanding mechanism 6 is reset through the lateral shifting mechanism 5, thus completing a single sanding process. At this time, the sawdust produced by sanding accumulates inside the closed sanding mechanism 6, which can prevent sawdust from flying and causing pollution to the working environment.
[0040] When the closed sanding mechanism 6 is running, it can drive the material guiding mechanism 8 to run simultaneously. The material guiding mechanism 8 can guide the wood chips accumulated inside the closed sanding mechanism 6 into the compression mechanism 9. When the wood chips inside the compression mechanism 9 accumulate to a certain amount, the accumulated wood chips can be compressed by controlling the operation of the compression mechanism 9, making the loose wood chips compact, thereby avoiding secondary scattering and pollution of the wood chips after subsequent processing during the accumulation.
[0041] During a single grinding operation of the enclosed grinding mechanism 6, the distance sensor 10 can detect the distance to the grinding edge of the plywood main component 11. As the enclosed grinding mechanism 6 moves along the grinding edge of the plywood main component 11, the distance sensor 10 detects a set of data values. When the grinding edge of the plywood main component 11 has a notch, the data values detected by the distance sensor 10 will fluctuate. Therefore, the distance sensor 10 can detect whether the edge of the plywood main component 11 has a notch. This process is repeated after the enclosed grinding mechanism 6 has completed a single grinding operation and reset. Then, when the distance sensor 10 detects a notch, the PLC controller controls the closed grinding mechanism 6 to adjust the grinding depth, and the lateral shifting mechanism 5 continues to run so that the closed grinding mechanism 6 performs secondary grinding. This process is repeated until the notch on the edge of the plywood main component 11 is ground flat. When the distance sensor 10 detects no notch, the PLC controller controls the lateral shifting mechanism 5 and the closed grinding mechanism 6 to stop running, and controls the pressing mechanism 7 to retract. Then, the ground plywood main component 11 can be output through the second roller conveyor 2.
[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. The present invention is not limited to the above embodiments; the embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this invention is defined by the appended claims and their equivalents.
Claims
1. A multi-functional edge grinding device for plywood processing, characterized in that: The system includes a first roller conveyor (1), a second roller conveyor (2) connected to one side of the first roller conveyor (1), the first roller conveyor (1) and the second roller conveyor (2) are used to convey the plywood main component (11), the front of the first roller conveyor (1) protrudes from the front of the second roller conveyor (2), a transverse shifting mechanism (5) is installed on the front of the second roller conveyor (2), the output end of the transverse shifting mechanism (5) is connected to a closed grinding mechanism (6), the closed grinding mechanism (6) is used for edge grinding and chamfering of the plywood main component (11), the top of the transverse shifting mechanism (5) is connected to a pressing mechanism (7), the pressing mechanism (7) is used to press the material and seal the closed grinding mechanism (6) to realize the closed grinding of the plywood main component (11) in a localized manner, and the closed grinding mechanism (6) is provided with a cooling mechanism for cooling the grinding end inside; The second roller conveyor (2) is provided with a compression mechanism (9) at the bottom. The feed end of the compression mechanism (9) is connected to the bottom of the closed grinding mechanism (6) through the material guiding mechanism (8). A distance sensor (10) is fixedly installed on one side of the closed grinding mechanism (6). A photoelectric sensor (4) is fixedly installed on the top of the first roller conveyor (1). The photoelectric sensor (4) and the distance sensor (10) are electrically connected to a PLC controller. The PLC controller is electrically connected to the control motor of the second roller conveyor (2) through relays and contactors. The PLC controller is connected to the closed grinding mechanism (6), the pressing mechanism (7), and the compression mechanism (9). The enclosed grinding mechanism (6) includes a cover (61), with an inlet groove (62) extending into the back of the cover (61) and a through groove extending into the front of the cover (61). A longitudinal moving arm (64) is slidably fitted into the through groove. A groove is provided at the back end of the longitudinal moving arm (64), and a rotating shaft (65) is movably fitted into the groove. A cylindrical grinding component (66) is fixedly connected to the side wall of the rotating shaft (65). An L-shaped air passage communicating with the groove at the back end of the longitudinal moving arm (64) is provided at the top of the longitudinal moving arm (64) on the front of the cover (61). The cooling mechanism is located at the top of the longitudinal moving arm (64) and is connected to the L-shaped air passage. An L-shaped connecting plate (67) is fixedly connected to the top of the longitudinal moving arm (64). A sliding groove extending into the back of the cover (61) is provided at the top of the cover (61), and a moving stage (68) is slidably fitted into the sliding groove. The moving stage (68) is fixedly connected to the top of the L-shaped connecting plate (67). Next, a grinding drive motor (69) is fixedly installed on the top of the moving table (68). The output end of the grinding drive motor (69) passes through the moving table (68), the L-shaped connecting plate (67) and is connected to the rotating shaft (65). A first U-shaped fixing frame (610) is fixedly connected to the front of the cover (61). A first electric cylinder (611) is fixedly installed on the front of the first U-shaped fixing frame (610). The output end of the first electric cylinder (611) passes through the first U-shaped fixing frame (610) and is connected to the front end of the longitudinal moving arm (64). The grinding drive motor (69) and the first electric cylinder (611) are electrically connected to the PLC through a relay and a contactor, respectively. A chip outlet is provided at the bottom of the cover (61) for installing the material guiding mechanism (8). A rail groove (614) is opened on the back of the cover (61). A rail is slidably sleeved in the rail groove (614). The rail is fixedly connected to the front of the second roller conveyor (2). The front of the cover (61) is provided with a connecting cylinder (612) for connecting the transverse shifting mechanism (5). The top of the inlet groove (62) of the cover (61) is provided with a door groove (613) for embedding the pressing mechanism (7). The transverse shifting mechanism (5) includes two end plates (51). The inner sides of the two end plates (51) are movably sleeved with reciprocating screws (52). The side wall of the reciprocating screws (52) is threaded with a moving block. The moving block is fixedly connected to the inner wall of the connecting cylinder (612). A geared motor (53) is fixedly installed on the side wall of one end plate (51). The output end of the geared motor (53) passes through the end plate (51) and is connected to the reciprocating screw (52). The geared motor (53) is electrically connected to the PLC controller through a relay and a contactor.
2. The multi-functional edge grinding device for plywood processing according to claim 1, characterized in that: The pressing mechanism (7) includes two second U-shaped fixing frames (71), which are fixedly connected to the top of two end plates (51) respectively. Each of the two second U-shaped fixing frames (71) has a threaded shaft (72) inside. The top end of the threaded shaft (72) is movably sleeved with the top of the inner wall of the second U-shaped fixing frame (71), and the bottom end of the threaded shaft (72) is movably sleeved with the top of the end plate (51). Each of the two second U-shaped fixing frames (71) has an L-shaped moving plate (74) slidably sleeved inside. The plate (74) is threaded onto the side wall of the two threaded shafts (72). The inner sides of the two L-shaped movable plates (74) are fixedly connected with pressure plates (75). The pressure plates (75) are embedded in the door groove (613) and are slidably sleeved inside the door groove (613). The tops of the two second U-shaped fixing frames (71) are fixedly installed with servo motors (73). The output shaft of the servo motor (73) passes through the second U-shaped fixing frame (71) and is connected to the threaded shaft (72). The servo motor (73) is electrically connected to the PLC controller through a relay and a contactor.
3. The multi-functional edge grinding device for plywood processing according to claim 1, characterized in that: The inner wall of the inlet groove (62) is fixedly connected to rubber curtains (63) on both sides of the cover (61).
4. The multi-functional edge grinding device for plywood processing according to claim 1, characterized in that: The cooling mechanism includes a rail groove (614), the cold air outlet end of the rail groove (614) is installed in an L-shaped air duct, and the air inlet end of the rail groove (614) is connected to a high-pressure air pump through an air pipe.
5. The multi-functional edge grinding device for plywood processing according to claim 1, characterized in that: The sidewall of the cylindrical grinding component (66) is provided with a vertical grinding surface (661) for grinding the edge of the plywood main component (11). The sidewall of the cylindrical grinding component (66) at the top of the vertical grinding surface (661) is provided with an upper inclined grinding surface (662) for chamfering the upper edge of the plywood main component (11). The sidewall of the cylindrical grinding component (66) at the bottom of the vertical grinding surface (661) is provided with a lower inclined grinding surface (663) for chamfering the lower edge of the plywood main component (11).
6. The multi-functional edge grinding device for plywood processing according to claim 1, characterized in that: The material guiding mechanism (8) includes a funnel (81), a flexible hose (82) is fixedly connected to the bottom outlet of the funnel (81), and a steel fan (84) is provided on the top of the funnel (81). The top of the steel fan (84) is fixedly installed to the bottom of the rotating shaft (65) through a connecting shaft (83).
7. The multi-functional edge grinding device for plywood processing according to claim 1, characterized in that: The first roller conveyor (1) is provided with a correction and positioning mechanism (3) at the top. The correction and positioning mechanism (3) includes a side platform (31) and a backing plate (36). The side platform (31) and the backing plate (36) are respectively located at the front and back ends of the conveying rollers of the first roller conveyor (1). A side plate (32) is fixedly connected to the top of the side platform (31). A second electric cylinder (33) is fixedly installed on the back of the side plate (32). The output shaft of the second electric cylinder (33) passes through the side plate (32) and is connected to a pressure sensor (38). The output shaft of the second electric cylinder (33) is slidably sleeved with a shaft sleeve (37). The pressure sensor (38) is located on the inner wall of the shaft sleeve (37). An L-shaped push plate (34) is fixedly connected to the positive end of the shaft sleeve (37). Two positioning shafts (35) are fixedly installed on the back of the L-shaped push plate (34). The two positioning shafts (35) pass through the side plate (32). The pressure sensor (38) is electrically connected to the PLC controller. The second electric cylinder (33) is electrically connected to the PLC controller through a relay and a contactor.
8. The multi-functional edge grinding device for plywood processing according to claim 1, characterized in that: The compression mechanism (9) includes a fixed base box (91), inside which a material cylinder (92) is fixedly installed. Inside the fixed base box (91), a fixed cylinder plate (95) is fixedly connected to one side of the material cylinder (92). The fixed cylinder plate (95) has a slot facing the material cylinder (92), and the slot extends through the top of the fixed cylinder plate (95). A compression end cylinder (96) adapted to the material cylinder (92) is slidably sleeved in the slot of the fixed cylinder plate (95). A hydraulic rod (93) is fixedly installed on the other side of the internal displacement cylinder (92) of the box (91). The output end of the hydraulic rod (93) passes through the inside of the feed cylinder (92) and is connected to a pressure plate (94). The side wall of the pressure plate (94) is in contact with the inner wall of the feed cylinder (92). The top of the feed cylinder (92) is provided with an inlet (97) for connecting the material guiding mechanism (8). The side wall of the feed cylinder (92) is provided with a pressure relief hole that passes through the inside of the feed cylinder (92), and a filter screen is provided in the pressure relief hole.