Numerical control door leaf four-edge saw for wooden door processing and using method thereof

Abstract

The invention belongs to the technical field of wood-working machinery, and particularly relates to a numerical control door leaf four-edge saw for wooden door processing and a using method thereof.The numerical control door leaf four-edge saw comprises a base, supporting seats are symmetrically arranged at the top of the base, and a movable seat is movably arranged on the base in the transverse direction. The first brush can adaptively ascend and descend along with the first spring rod, the second brush can automatically and transversely move along with the sliding block and the connecting frame, the problems that the height of an existing fixed brush cannot be adjusted, and the edge of the existing fixed brush cannot be adaptively attached are solved in a targeted mode, on one hand, the situation that the brush is excessively compressed to compact saw dust on the surface of a plate is avoided, and the saw dust is effectively raised and gathered; and on the other hand, the second brush is tightly attached to the side edge and the edge contour of the door leaf all the time, a suspended gap on the outer side of the door leaf is eliminated, saw dust is prevented from escaping outwards through the gap under the action of centrifugal force and airflow from the source, flying dust pollution is remarkably reduced, and the sealing and dust collection effects are improved.

Description

Technical Field

[0001] This invention belongs to the field of woodworking machinery technology, and in particular relates to a CNC door leaf four-sided saw for wood door processing and its usage method. Background Technology

[0002] The CNC door leaf four-sided saw is one of the core pieces of equipment in a wooden door production line. It is mainly used to cut and saw the four sides of the door leaf blank to meet the requirements of dimensional accuracy and edge flatness. Its working principle is usually as follows: First, the door leaf is transported to the processing station by an automatic feeding mechanism. Then, the positioning system clamps and corrects the reference of the door leaf. Then, the CNC system controls the sawing unit to saw along the four sides of the door leaf in sequence. During this process, the sawdust generated by the process is cleaned and collected by the matching dust collection system and brush device to ensure the cleanliness of the processing environment and the normal operation of the equipment.

[0003] Existing equipment typically features brushes around the suction port to gather and sweep sawdust remaining on the door surface after sawing, allowing the suction system to collect it effectively. However, existing brushes are usually concave, integral structures that are fixedly installed around the suction port, with the concave opening corresponding to the saw blade position so that the saw blade can extend to cut.

[0004] When the sawing unit moves to the edge of the door leaf for sawing, the concave brush makes asymmetrical contact with the door leaf: part of the brush is located above the door leaf surface to clean the board surface, while the other part extends to the edge of the door leaf to block sawdust. Since the brush is fixedly installed as a whole, its height cannot be adjusted according to the thickness of the door leaf, which causes the brush section located above the door leaf to be severely compressed. The excessively compressed bristles not only fail to effectively lift the sawdust, but also press the debris firmly onto the board surface, forming cleaning residue. At the same time, the brush section suspended outside the edge of the door leaf cannot adapt to the contour of the door leaf, and there are gaps between it and the side and bottom of the door leaf. This causes a large amount of sawdust to escape through the gaps under the action of centrifugal force and airflow, causing dust pollution.

[0005] In addition, the sawdust produced by sawing leaks down and spreads outward from the bottom and side gaps of the wooden door under the centrifugal force and airflow of the saw blade. It cannot be effectively blocked and collected, causing dust pollution on site, and affecting the cleanliness of the processing environment and the efficiency of subsequent cleaning. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a CNC door leaf four-sided saw for wooden door processing and its usage method.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows: The present invention discloses a CNC door leaf four-sided saw for processing wooden doors, including a base, a support seat symmetrically arranged on the top of the base, a movable seat movably arranged on the base along the horizontal direction, a cutting plate respectively arranged on the left and right ends of the movable seat, a cutting machine arranged on the cutting plate, wherein the cutting machine located on the left end is movable in the front-back direction, and the cutting machine located on the right end is movable in the left-right direction, a cutting opening for cutting by the cutting machine is opened in the middle of the cutting plate, and a dust collection pipe is arranged on the cutting machine, the dust collection pipe being connected to an external dust collector; A brush adjustment assembly is disposed below the cutting plate and is used to adjust the brush according to the thickness of the wooden door. A chip collection assembly, located below the cutting plate, is used to automatically collect the chips that fall downwards during the cutting of wooden doors.

[0008] Furthermore, the brush adjustment assembly includes: The first spring rod is slidably connected to the base. The top of the first spring rod slides through the base and is fitted with a limit cap. The limit cap can limit the maximum extension and retraction of the first spring rod, avoid damage caused by excessive stretching or compression of the spring, and ensure the stable operation of the brush adjustment assembly. A concave plate is installed below the base and below the first spring rod; The first brush has an overall U-shaped structure and is installed below the concave plate; The first roller assembly is installed at the end of the concave plate away from the cutting opening, and the bottom end of the first roller assembly is flush with the surface below the first brush. A concave frame is installed below the base and at one end away from the first roller group; Two sliders are provided, and they slide on the two vertical ends of the concave frame through a sliding rail connection. A connecting frame is installed between two sliders, and a limit component is provided at the end of the connecting frame away from the base; A straight plate is set inside the cutting opening and is fixedly connected to the slider; The second brush is located below the straight plate and moves inside the U-shaped structure of the first brush. The second spring rod is installed at the end of the connecting frame away from the second brush and is slidably connected to the horizontal end of the concave frame.

[0009] Furthermore, the limiting component includes: A limiting block is installed on the connecting frame away from the base, and the limiting block has an L-shaped structure; The second roller assembly is installed at the horizontal end of the limiting block, and the second roller assembly is flush with the second brush. The third roller group is installed on the horizontal end of the limiting block and is fixedly connected to the second roller. The third roller group is arranged on the second roller group at an outward inclination.

[0010] Furthermore, the cutting plate has a groove on the top side of the cutting opening, and an L-shaped block is connected inside the groove via a slide rail. The other end of the L-shaped block is installed above the connecting frame. A vertical plate is installed on the concave plate away from the straight plate, and the vertical plate is connected to the side wall of the cutting opening via a slide rail.

[0011] Furthermore, the inner wall of the U-shaped structure of the first brush and the outer wall of the second brush are arranged in a close-fitting micro-aggregate pattern.

[0012] Furthermore, the chip collection assembly includes: A chip collection frame is installed at the end of the cutting plate away from the first roller group, and a chip collection groove is provided through the middle of the chip collection frame; The chip collection plate has one end slidably connected to the bottom of the chip collection frame and passes through the inside of the chip collection groove; The third spring rod is installed on the top wall of the chip collection groove above and on the top of the chip collection plate below; A chip collecting ring is installed below the chip collecting plate. One end of the dust collection tube slides through the inside of the chip collecting ring, and the other end is connected to the inside of the cutting machine. The semi-ring plate is installed at an angle at the end of the chip collection ring away from the dust collection pipe, and the semi-ring plate is arranged in the middle of the cutting opening of the cutting plate.

[0013] Furthermore, a sealing plate is installed at the end of the semi-ring plate away from the chip collecting ring, a first ball bearing is rotatably connected to the top of the sealing plate, and a limit plate is installed on one side of the sealing plate.

[0014] Furthermore, a telescopic plate is symmetrically installed on the top of the semi-annular plate in the cutting direction of the cutting opening, and a second ball bearing is rotatably connected to the top of the telescopic plate.

[0015] A method for using a CNC door leaf four-sided saw for wooden door processing includes the following steps: First, place the wooden door to be cut stably on the base support and fix it in position. At the same time, connect the dust collection pipe to the external dust collector and start the dust collector to stand by. Second, control the horizontal movement of the moving seat to drive the cutting plate and cutting machine to the preset starting position, and adjust the direction of the two sets of cutting machines to adapt to four-sided sawing. Third, the limiting component fits against the edge of the wooden door and limits its position, releasing the second spring rod and pushing the slider to slide along the concave frame slide rail, which in turn moves the straight plate and the second brush, so that the second brush fits against the cut edge of the wooden door and is located within the U-shaped structure of the first brush. Fourth, the cutting plate moves down, the first roller group first contacts and slides with the surface of the wooden door, the concave plate drives the first brush to fit the surface of the wooden door under the elastic support of the first spring rod, and the first spring rod adjusts the height of the first brush according to the thickness of the wooden door. Fifth, the brush adjustment component drives the L-shaped block to slide along the groove, adaptively adjusting the size of the cutting opening; the concave plate rises and falls, driving the vertical plate to slide, keeping the cutting opening closed. Sixth, the two sets of cutting machines work together. The left cutting machine moves back and forth, and the right cutting machine moves left and right to complete the sawing of the four sides of the wooden door. The first brush is attached to the surface of the wooden door to sweep away sawdust, and the second brush moves inside the U-shaped structure of the first brush to attach to the edge of the wooden door. The two form a seal, and the dust collection pipe sucks up dust synchronously. Seventh, sawing debris falls under the action of centrifugal force. The semi-circular plate gathers the debris and guides it to slide down the inclined surface to the inlet end of the dust collection pipe. The dust collection pipe adsorbs and transports the debris to the external dust collector.

[0016] Compared with existing technologies, the CNC door leaf four-sided saw for wooden door processing and its usage method described in this invention have the following advantages: 1. This invention, through the cooperation of the brush adjustment component and the limiting component, enables the first brush to adaptively rise and fall with the first spring rod, and the second brush to automatically move laterally with the slider and connecting frame. This specifically solves the problems of existing fixed brushes having non-adjustable height and inability to adaptively fit the edges. On the one hand, it avoids the brush being over-compressed, which would compact sawdust onto the board surface, effectively lifting and gathering sawdust to eliminate cleaning residue. On the other hand, it ensures that the second brush always fits tightly against the side and edge contours of the door leaf, eliminating gaps on the outer side of the door leaf. This fundamentally prevents sawdust from escaping through gaps under the action of centrifugal force and airflow, significantly reducing dust pollution and improving sealing and dust collection effects.

[0017] 2. This invention utilizes the linkage structure of the inclined semi-ring plate, sealing plate, telescopic plate, and third spring rod in the sawing assembly to comprehensively block, gather, and guide sawdust that leaks downward and diffuses outward under the action of centrifugal force and airflow during the sawing process. This confines the sawdust within the cutting area and precisely guides it to the dust collection pipe inlet for timely adsorption and collection. This invention specifically addresses the problem of excessive sawdust spillage from the bottom and side gaps of existing equipment, significantly improving sawdust collection rate and cleanliness, improving the processing environment, and reducing subsequent manual cleaning workload.

[0018] 3. The present invention uses a close-fitting micro-aggregated arrangement of the first and second brushes, combined with the linkage sealing structure of the L-shaped block, groove and vertical plate at the cutting edge, to keep the cutting area in a closed state at all times. On the one hand, it further enhances the sawdust gathering effect and improves the adsorption efficiency of the dust collection system. On the other hand, it effectively prevents sawdust from entering the internal slide rails, transmission and other key parts of the equipment, avoids component jamming and wear, and improves the stability of equipment operation.

[0019] 4. The present invention uses a sealing plate, a first ball bearing, a limiting plate and a telescopic plate and a second ball bearing symmetrically arranged at the top of the semi-ring plate to achieve efficient chip collection while forming a rolling flexible fit on the bottom of the wooden door. This avoids scratches on the end and bottom surfaces of the wooden door caused by rigid contact, ensuring the processing quality of the door leaf. It can also adapt to wooden doors of different thicknesses and contours, improving the versatility and applicability of the equipment, and eliminating the need for frequent manual adjustments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the cutting machine of the present invention; Figure 3 This is a schematic diagram of the cutting machine of the present invention from another angle; Figure 4 This is a longitudinal sectional view of the cutting machine of the present invention; Figure 5 This is a schematic diagram of the limiting component of the present invention; Figure 6 This is a schematic diagram of the first brush of the present invention; Figure 7 yes Figure 4 A magnified view of part A in the image; Figure 8 This is a left view of the cutting machine of the present invention; Figure 9 This is a front view of the cutting machine of the present invention; Figure 10 yes Figure 8 A magnified view of part B in the image; Figure 11 yes Figure 8 A magnified view of part C; Figure 12 This is a schematic diagram of the telescopic plate of the present invention.

[0021] The markings in the diagram are as follows: 1. Base; 10. Support base; 11. Movable base; 12. Cutting plate; 13. Cutting machine; 14. Dust collection pipe; 2. Brush adjusting assembly; 21. First spring rod; 210. Limiting cap; 22. Concave plate; 23. First brush; 24. First roller group; 25. Concave frame; 26. Slider; 27. Connecting frame; 28. Straight plate; 29. ​​Second brush; 290. Second spring rod; 211. Limiting assembly; 212. Limiting block; 213. Second roller group; 214. Third roller group; 221. Groove; 222. L-shaped block; 223. Vertical plate; 3. Chip collection assembly; 31. Chip collection frame; 32. Chip collection groove; 33. Chip collection plate; 34. Third spring rod; 35. Chip collection ring; 36. Semi-ring plate; 311. Sealing plate; 312. First ball bearing; 313. Limiting plate; 321. Telescopic plate; 322. Second ball bearing. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0023] See Figures 1-4 As shown, this invention provides a CNC door leaf four-sided saw for wooden door processing, including a base 1, a brush adjustment assembly 2, and a chip collection assembly 3. A support base 10 is symmetrically arranged on the top of the base 1. A movable base 11 is movably arranged on the base 1 along the horizontal direction. Cutting plates 12 are respectively arranged at the left and right ends of the movable base 11. A cutting machine 13 is arranged on the cutting plate 12, wherein the cutting machine 13 located on the left side is movable in the front-to-back direction, and the cutting machine 13 located on the right side is movable in the left-to-right direction. A cutting edge is formed in the middle of the cutting plate 12 for cutting... The cutting plate 13 has a cutting kerf, and a dust collection pipe 14 is installed on the cutting plate 12. The dust collection pipe 14 is connected to an external dust collector. The brush adjustment assembly 2 is located below the cutting plate 12 and is used to adjust the brush according to the thickness of the wooden door. The brush adjustment assembly 2 includes a first spring rod 21, which is slidably connected to the base 1. The top of the first spring rod 21 slides through the base 1 and is fitted with a limit cap 210. The limit cap 210 can limit the maximum extension and retraction of the first spring rod 21 to avoid damage caused by excessive stretching or compression of the spring and to ensure the brush is properly adjusted. Stable operation of brush adjustment assembly 2; concave plate 22, which is installed below base 1 and below first spring rod 21; first brush 23, which has an overall U-shaped structure, is installed below concave plate 22; first roller group 24, which is installed at the end of concave plate 22 away from the cutting edge, with the bottom end of first roller group 24 flush with the lower surface of first brush 23; concave frame 25, which is installed below base 1 and at the end away from first roller group 24; two sliders 26 are provided and connected by a slide rail. The slide is on the two vertical ends of the concave frame 25; the connecting frame 27 is installed between the two sliders 26, and the end of the connecting frame 27 away from the base 1 is provided with a limit component 211; the straight plate 28 is set inside the cut and is fixedly connected to the slider 26; the second brush 29 is set below the straight plate 28 and moves inside the U-shaped structure of the first brush 23; the second spring rod 290 is installed on the end of the connecting frame 27 away from the second brush 29 and is slidably connected to the horizontal end of the concave frame 25.

[0024] It should be noted that, firstly, the wooden door leaf to be cut is placed stably on the support base 10 symmetrically arranged on the top of the base 1. The support base 10 provides stable support and positioning for the wooden door, preventing the wooden door from shifting or shaking during the cutting process. This lays the foundation for subsequent precise cutting, brush cleaning, and debris collection. At the same time, ensure that the dust collection pipe 14 on the cutting machine 13 is tightly connected to the external dust collector, and start the dust collector to put it in standby mode to ensure that the subsequent dust collection operation can be carried out smoothly. According to the size of the wooden door to be cut and the four-sided sawing requirements, the movable seat 11 on the control base 1 moves horizontally, driving the cutting plates 12 and the cutting machine 13 at both ends of the movable seat 11 to move to the preset cutting starting position. Then, according to the direction of the sawing edge, the positions of the two sets of cutting machines 13 are adjusted respectively. The cutting machine 13 on the left moves in the front and back direction to adapt to the sawing operation of the front and back sides of the wooden door, and the cutting machine 13 on the right moves in the left and right direction to adapt to the sawing operation of the left and right sides of the wooden door. The two sets of cutting machines 13 work together to complete the sawing operation of the four sides of the wooden door. Before the cutting operation starts, the limiting component 211 at the end of the connecting frame 27 away from the base 1 fits against the edge of the wooden door to achieve precise positioning of the cutting position and ensure that the sawing trajectory is aligned with the edge of the wooden door. Then, the second spring rod 290 is released. Using the elastic force of the second spring rod 290, the two sliders 26 are pushed to slide smoothly along the two vertical end slide rails of the concave frame 25. Since the straight plate 28 is fixedly connected to the slider 26, when the slider 26 moves, it drives the straight plate 28 and the second brush 29 below to move synchronously, so that the second brush 29 fits tightly against the cutting edge of the wooden door and is always inside the U-shaped structure of the first brush 23, preparing for subsequent collaborative sealing. When the cutting plate 12 moves downwards and approaches the wooden door, the first roller group 24 first contacts the surface of the wooden door and slides synchronously with the cutting action, playing a guiding and buffering role to prevent the cutting plate 12 from pressing down directly and damaging the surface of the wooden door. At the same time, under the elastic support of the first spring rod 21, the concave plate 22 drives the first brush 23 below to adhere to the surface of the wooden door. The first spring rod 21 can automatically extend and retract according to the actual thickness of the wooden door, flexibly adjusting the height of the first brush 23 to ensure that the first brush 23 always adheres to the surface of the wooden door with appropriate pressure. Moreover, the bottom of the first roller group 24 is flush with the surface below the first brush 23, further ensuring the consistency of the first brush 23's adhesion. It is worth noting that during the cutting process, the first brush 23 adheres to the surface of the wooden door and cleans synchronously with the cutting action, quickly gathering the sawdust generated by the sawing into the suction range of the dust collection pipe 14, so that the dust collection pipe 14 can suck in the sawdust and transport it to the external dust collector. At the same time, the second brush 29 moves synchronously inside the U-shaped structure of the first brush 23, closely adhering to the cut edge and side of the wooden door, and forming a closed-loop sealing structure with the first brush 23. When the thickness of the wooden door changes or the cutting thickness is adjusted, the extension and retraction of the first spring rod 21 and the elastic push of the second spring rod 290 work together to drive the first brush 23 and the second brush 29 to adjust their height and position synchronously, always maintaining a sealed state and preventing the sawdust from escaping through the gaps under the action of centrifugal force and airflow.

[0025] See Figure 5 As shown, the limiting component 211 includes: a limiting block 212, which is installed on the connecting frame 27 away from the base 1 below, and the limiting block 212 has an L-shaped structure; a second roller group 213, which is installed on the horizontal end of the limiting block 212, and the second roller group 213 is flush with the second brush 29; and a third roller group 214, which is installed on the horizontal end of the limiting block 212 and is fixedly connected to the second roller group 213, and the third roller group 214 is arranged on the second roller group 213 at an outward inclination.

[0026] It should be noted that when the cutting machine 13 moves the cutting plate 12 downwards towards the wooden door to be cut, the limiting component 211 moves downwards synchronously with the cutting plate 12. First, the outwardly inclined third roller group 214 contacts the edge of the wooden door. This allows for pre-contact and automatic guidance as the cutting machine 13 approaches the door, ensuring the edge of the door smoothly enters the limiting area. This prevents rigid collisions between the door edge and the limiting block 212, protecting the door's end face from damage and improving the finished product qualification rate. The door edge rolls on the third roller group 214 and smoothly transitions along the inclined guide surface to the second... After the edge of the wooden door comes into contact with the roller group 213, it will generate a horizontal squeezing force on the limiting block 212. This squeezing force will push the connecting frame 27, the slider 26 and the straight plate 28 to move as a whole, thereby driving the second brush 29 to automatically and accurately fit the edge of the wooden door. With the elastic cooperation of the second spring rod 290, the second brush 29 will always maintain close contact with the edge of the wooden door, realizing dynamic sealing of the cutting area. No additional drive or manual adjustment is required. It can adapt to wooden door edges of different widths and positions and always maintain a sealed state. The second brush 29 is flush with the second roller group 213 to ensure that the brush is at the same height as the surface and side of the wooden door. Together with the first brush 23, it forms a closed seal, eliminating the gaps that appear at the edge of the door where the traditional fixed brush is placed. This greatly reduces the possibility of sawdust escaping outward under the action of centrifugal force and airflow, and significantly improves the dust collection effect.

[0027] Both the second roller group 213 and the third roller group 214 adopt a rolling contact method. During the cutting process, the friction is small and the operation is smooth when the wooden door moves relative to the equipment, and there will be no jamming or pulling of the wooden door.

[0028] See Figure 4 , Figure 6 and Figure 7 As shown, the cutting plate 12 has a slot 221 on the top side of the cutting opening. An L-shaped block 222 is connected inside the slot 221 through a slide rail. The other end of the L-shaped block 222 is installed above the connecting frame 27. A vertical plate 223 is installed on the end of the concave plate 22 away from the straight plate 28. The vertical plate 223 is connected to the side wall of the cutting opening through a slide rail.

[0029] It should be noted that when cutting wooden doors of different thicknesses, the brush adjustment component 2 moves the straight plate 28, which in turn moves the L-shaped block 222 connected to the connecting frame 27, sliding along the groove 221 of the cutting plate 12. When the wooden door is thicker, the cut kerf enlarges, and when the wooden door is thinner, the cut kerf shrinks. At the same time, the concave plate 22 rises and falls with the first spring rod 21, causing the vertical plate 223 at its end to slide along the side wall of the cut kerf, ensuring that the cut kerf is seamless and closed throughout the entire process. This structure can be synchronously linked with the brush adjustment component 2 without manual operation. When cutting wooden doors of different thicknesses, it can automatically enlarge and shrink the cut kerf, adapting to the sawing requirements of various specifications of wooden doors, ensuring that the cut kerf is always closed during the adjustment process. This works in synergy with the sealing effect of the brush adjustment component 2 to further enhance the overall sealing performance of the cutting area, reduce dust pollution from the source, improve the processing environment, and prevent sawdust from spreading into the equipment or surrounding areas.

[0030] See Figure 5 As shown, the inner wall of the U-shaped structure of the first brush 23 and the outer wall of the second brush 29 are arranged in a close-fitting micro-aggregate pattern.

[0031] It should be noted that the sawing process confines the debris generated by the sawing to the area formed by the first brush 23 and the second brush 29, effectively preventing the debris from spreading and thus improving the dust collection efficiency of the dust collection tube 14. At the same time, it further enhances the sealing effect of the cut and blocks the path of debris escaping from the gaps between the brushes.

[0032] See Figures 8-11As shown, the chip collection assembly 3 is located below the cutting plate 12 and is used to automatically collect the chips that fall downwards when cutting the wooden door. The chip collection assembly 3 includes: a chip collection frame 31, which is installed at the end of the cutting plate 12 away from the first roller group 24, and a chip collection groove 32 is opened through the middle of the chip collection frame 31; a chip collection plate 33, one end of which is slidably connected to the bottom of the chip collection frame 31 and passes through the inside of the chip collection groove 32; a third spring rod 34, which is installed on the top wall of the chip collection groove 32 above and on the top of the chip collection plate 33 below; a chip collection ring 35, which is installed below the chip collection plate 33, one end of the dust collection pipe 14 slides through the inside of the chip collection ring 35, and the other end is connected to the inside of the cutting machine 13; and a semi-ring plate 36, which is installed at an incline at the end of the chip collection ring 35 away from the dust collection pipe 14, and the semi-ring plate 36 is arranged in the middle of the cutting opening of the cutting plate 12.

[0033] It should be noted that when the wooden door is sawn by the cutting machine 13, the sawing debris is dropped in the centrifugal direction under the centrifugal force of the saw blade. The dropped debris will gather along the middle of the semi-ring plate 36. Through the semi-ring structure of the semi-ring plate 36, the debris scattered under the centrifugal force of the saw blade can be effectively gathered, preventing the debris from spreading to the surrounding area of ​​the equipment or the ground. At the same time, its inclined installation design can guide the debris to slide accurately to the dust collection port, greatly improving the debris collection efficiency and reducing debris residue. With the dust collection pressure generated by the dust collection pipe 14, the debris can be further adsorbed and gathered, and then transported to the external dust collector through the dust collection pipe 14. When cutting wooden doors of different thicknesses, the elastic extension and contraction of the third spring rod 34 and the sliding cooperation of the chip collection plate 33 can drive the semi-ring plate 36 to rise and fall adaptively, always keeping it close to the bottom of the wooden door without manual adjustment, adapting to the cutting operation of wooden doors of various thicknesses.

[0034] See Figure 11 As shown, a sealing plate 311 is installed at the end of the semi-ring plate 36 away from the chip collection ring 35. A first ball bearing 312 is rotatably connected to the top of the sealing plate 311, and a limit plate 313 is installed on one side of the sealing plate 311.

[0035] It should be noted that as the cutting machine 13 continues to approach, the pressure exerted by the bottom of the wooden door on the limiting plate 313 is transmitted to the sealing plate 311, pushing the sealing plate 311 downwards. The sealing plate 311 then moves the semi-ring plate 36 and the chip collecting ring 35 downwards simultaneously, thereby pulling the chip collecting plate 33 downwards along the chip collecting groove 32 of the chip collecting frame 31. This causes the third spring rod 34 to automatically extend until the bottom of the wooden door contacts the first ball bearing 312 at the top of the sealing plate 311. At this point, the tension of the third spring rod 34 balances the pressure exerted by the wooden door, and it stops moving downwards. The movement ultimately achieves the semi-circular plate 36. Through the sealing plate 311 and the first ball bearing 312, and through the prior contact and compression transmission of the limiting plate 313, combined with the elastic extension and contraction of the third spring rod 34, the semi-circular plate 36 can automatically adapt to the thickness of the wooden door without manual intervention. This ensures that the semi-circular plate 36 is always in close contact with the bottom of the wooden door, preventing gaps between the bottom of the wooden door and the semi-circular plate 36, avoiding debris leakage from the gaps, further enhancing the sealing performance of the cutting area, and preventing rigid collisions between the sealing plate 311, the semi-circular plate 36 and the bottom of the wooden door, thus playing a buffering and protective role.

[0036] See Figures 11-12 As shown, a telescopic plate 321 is symmetrically installed on the top of the semi-circular plate 36 in the cutting direction of the cutting opening, and a second ball bearing 322 is rotatably connected to the top of the telescopic plate 321.

[0037] It should be noted that the telescopic plate 321 and the second ball bearing 322 are attached to the bottom of the wooden door and move synchronously with the cutting direction. During the cutting operation, the debris generated in the cutting direction is limited by the symmetrically arranged telescopic plate 321 to prevent the debris from spreading to both sides, and at the same time guides the debris to fall onto the semi-ring plate 36, which then guides it into the dust collection pipe 14 with the tilt of the semi-ring plate 36. During the cutting process, the second ball bearing 322 rolls at the bottom of the wooden door, reducing the friction between the telescopic plate 321 and the wooden door and preventing scratches on the wooden door.

[0038] A method for using a CNC door leaf four-sided saw for wooden door processing includes the following steps: First, place the wooden door to be cut stably on the base 1 support 10 and fix it in position. At the same time, connect the dust collection pipe 14 to the external dust collector and start the dust collector to stand by. Second, control the moving seat 11 to move laterally, drive the cutting plate 12 and the cutting machine 13 to the preset starting position, adjust the direction of the two sets of cutting machines 13 to adapt to four-sided sawing. Third, the limiting component 211 fits against the edge of the wooden door and limits its movement, releasing the second spring rod 290 and pushing the slider 26 to slide along the slide rail of the concave frame 25, which in turn moves the straight plate 28 and the second brush 29, so that the second brush 29 fits against the cut edge of the wooden door and is located within the U-shaped structure of the first brush 23. Fourth, the cutting plate 12 moves down, the first roller group 24 first contacts and slides with the surface of the wooden door, and the concave plate 22 drives the first brush 23 to fit the surface of the wooden door under the elastic support of the first spring rod 21. The first spring rod 21 adjusts the height of the first brush 23 according to the thickness of the wooden door. Fifth, the brush adjustment component 2 drives the L-shaped block 222 to slide along the groove 221, adaptively adjusting the size of the cutting opening; the concave plate 22 rises and falls, driving the vertical plate 223 to slide, keeping the cutting opening closed. Sixth, the two sets of cutting machines 13 work together. The left cutting machine 13 moves back and forth, and the right cutting machine 13 moves left and right to complete the sawing of the four sides of the wooden door. The first brush 23 adheres to the surface of the wooden door to clean the sawdust. The second brush 29 moves inside the U-shaped structure of the first brush 23 to adhere to the edge of the wooden door. The two form a seal, and the dust collection pipe 14 sucks up the dust simultaneously. Seventh, sawing debris falls under the action of centrifugal force. The semi-ring plate 36 gathers the debris and guides it to slide down the inclined surface to the inlet end of the dust collection pipe 14. The dust collection pipe 14 adsorbs and transports the debris to the external dust collector.

[0039] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A CNC door leaf four-sided saw for processing wooden doors, comprising a base (1), characterized in that... The base (1) is symmetrically provided with a support seat (10) on the top. The base (1) is provided with a movable seat (11) that can move along the horizontal direction. The left and right ends of the movable seat (11) are respectively provided with a cutting plate (12). The cutting plate (12) is provided with a cutting machine (13). The cutting machine (13) located on the left side can be moved along the front and back direction, and the cutting machine (13) located on the right side can be moved along the left and right direction. The cutting plate (12) has a cutting opening in the middle for the cutting machine (13) to cut. The cutting machine (13) is provided with a dust collection pipe (14). The dust collection pipe (14) is connected to an external dust collector. Brush adjustment assembly (2), which is located below the cutting plate (12) and is used to adjust the brush according to the different thicknesses of the wooden door; The chip collection assembly (3) is located below the cutting plate (12) and is used to automatically collect the chips that fall downwards when the wooden door is cut.

2. The CNC door leaf four-sided saw for processing wooden doors according to claim 1, characterized in that, The brush adjustment assembly (2) includes: The first spring rod (21) is slidably connected to the base (1). The top of the first spring rod (21) slides through the base (1) and is fitted with a limit cap (210). The limit cap (210) can limit the maximum extension of the first spring rod (21). A concave plate (22) is installed below the base (1) and below the first spring rod (21); The first brush (23) has a U-shaped structure and is installed below the concave plate (22); The first roller group (24) is installed at the end of the concave plate (22) away from the cutting opening, and the bottom end of the first roller group (24) is flush with the surface below the first brush (23); A concave frame (25) is installed below the base (1) and away from one end of the first roller group (24); Two sliders (26) are provided and slide on the two vertical ends of the concave frame (25) through a sliding rail connection; A connecting frame (27) is installed between two sliders (26), and a limit component (211) is provided at one end of the connecting frame (27) away from the base (1). A straight plate (28) is set inside the cutting opening and is fixedly connected to the slider (26); The second brush (29) is located below the straight plate (28) and moves inside the U-shaped structure of the first brush (23); The second spring rod (290) is mounted on the end of the connecting frame (27) away from the second brush (29) and is slidably connected to the horizontal end of the concave frame (25).

3. The CNC door leaf four-sided saw for processing wooden doors according to claim 2, characterized in that, The limiting component (211) includes: A limiting block (212) is installed below the connecting frame (27) away from the base (1), and the limiting block (212) has an L-shaped structure; The second roller assembly (213) is installed at the horizontal end of the limiting block (212), and the second roller assembly (213) is flush with the second brush (29); The third roller group (214) is installed on the horizontal end of the limiting block (212) and is fixedly connected to the second roller group (213). The third roller group (214) is arranged on the second roller group (213) at an outward inclination.

4. A CNC door leaf four-sided saw for processing wooden doors according to claim 2, characterized in that, The cutting plate (12) has a slot (221) on the top side of the cutting opening. An L-shaped block (222) is connected inside the slot (221) by a slide rail. The other end of the L-shaped block (222) is installed above the connecting frame (27). A vertical plate (223) is installed on the end of the concave plate (22) away from the straight plate (28). The vertical plate (223) is connected to the side wall of the cutting opening by a slide rail.

5. A CNC door leaf four-sided saw for processing wooden doors according to claim 2, characterized in that, The inner wall of the U-shaped structure of the first brush (23) and the outer wall of the second brush (29) are arranged in a close-fitting micro-aggregate pattern.

6. A CNC door leaf four-sided saw for processing wooden doors according to claim 2, characterized in that, The chip collection assembly (3) includes: A chip collector (31) is installed at the end of the cutting plate (12) away from the first roller group (24), and a chip collection groove (32) is provided through the middle of the chip collector (31). The chip collection plate (33) has one end slidably connected to the bottom of the chip collection frame (31) and passes through the inside of the chip collection groove (32); The third spring rod (34) is mounted on the top wall of the chip collection groove (32) above and on the top of the chip collection plate (33) below; A chip collecting ring (35) is installed below the chip collecting plate (33). One end of the dust collection tube (14) slides through the inside of the chip collecting ring (35), and the other end is connected to the inside of the cutting machine (13). A semi-ring plate (36) is installed at an angle at one end of the chip collection ring (35) away from the dust collection pipe (14), and the semi-ring plate (36) is arranged in the middle of the cutting opening of the cutting plate (12).

7. A CNC door leaf four-sided saw for processing wooden doors according to claim 6, characterized in that, A sealing plate (311) is installed at the end of the semi-ring plate (36) away from the chip collection ring (35). A first ball bearing (312) is rotatably connected to the top of the sealing plate (311). A limit plate (313) is installed on one side of the sealing plate (311).

8. A CNC door leaf four-sided saw for processing wooden doors according to claim 7, characterized in that, The top of the semi-ring plate (36) is symmetrically installed with a telescopic plate (321) in the cutting direction of the cutting opening, and the top of the telescopic plate (321) is connected to a second ball bearing (322).

9. A CNC door leaf four-sided saw for wooden door processing and its usage method, characterized in that: The CNC door leaf four-sided saw for processing wooden doors as described in any one of claims 1-8 includes the following steps: First, place the wooden door to be cut stably on the base (1) support seat (10) and fix it in position. At the same time, connect the dust collection pipe (14) to the external dust collector and start the dust collector to stand by. Second, control the moving seat (11) to move laterally, drive the cutting plate (12) and the cutting machine (13) to the preset starting position, adjust the direction of the two sets of cutting machines (13) to adapt to four-sided sawing; Third, the limiting component (211) fits against the edge of the wooden door and limits the movement, releasing the second spring rod (290), pushing the slider (26) to slide along the slide rail of the concave frame (25), driving the straight plate (28) and the second brush (29) to move, so that the second brush (29) fits against the cut edge of the wooden door and is located within the U-shaped structure of the first brush (23); Fourth, the cutting plate (12) moves down, the first roller group (24) first contacts and slides with the surface of the wooden door, the concave plate (22) drives the first brush (23) to fit the surface of the wooden door under the elastic support of the first spring rod (21), and the first spring rod (21) adjusts the height of the first brush (23) according to the thickness of the wooden door. Fifth, the brush adjustment component (2) drives the L-shaped block (222) to slide along the groove (221) to adaptively adjust the size of the cutting opening, and the concave plate (22) rises and falls to drive the vertical plate (223) to slide; Sixth, the two sets of cutting machines (13) work together, the left cutting machine (13) moves back and forth and the right cutting machine (13) moves left and right to complete the sawing of the four sides of the wooden door. The first brush (23) adheres to the surface of the wooden door to clean the sawdust. The second brush (29) moves inside the U-shaped structure of the first brush (23) to adhere to the edge of the wooden door. The two form a seal and the dust collection pipe (14) sucks up the dust synchronously. Seventh, sawing debris falls under the action of centrifugal force. The semi-ring plate (36) gathers the debris and guides it to slide down the inclined surface to the inlet end of the dust collection pipe (14). The dust collection pipe (14) adsorbs and transports the debris to the external dust collector.

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