A dust removal device for a panel saw

Abstract

The application relates to a dust removal device of a panel saw and belongs to the technical field of panel saws. The dust removal device of the panel saw comprises dustproof assemblies arranged on the two sides of a pressing beam along the running direction of a panel, the dustproof assemblies have a closed state of closing a passageway and an open state of opening the passageway, a driving assembly is arranged for driving the dustproof assemblies to switch between the closed state and the open state, the ruler is provided with a first dust suction port, the pressing beam is provided with a second dust suction port, part of the air outlets are provided with pneumatic floating beads, the remaining air outlets are provided with air outlet assemblies, and the air outlet direction of the air outlet assemblies is towards the first dust suction port. The scheme provided by the application can quickly remove wood dust on the surface of the workbench through the first dust suction port, realizes sealing treatment of panel sawing through the dustproof assemblies, effectively prevents leakage and diffusion of the wood dust, improves the dust suction effect of the second dust suction port, and further improves the neatness of the panel saw.

Description

Technical Field

[0001] This application relates to the field of panel saw technology, and more particularly to a panel saw dust removal device. Background Technology

[0002] A panel saw, as a type of automated board sawing equipment, uses a pressure beam to clamp and fix the boards, and then uses the reciprocating motion of the saw carriage to precisely cut the stacked boards. This equipment is suitable for various board materials, such as particleboard, fiberboard, plywood, solid wood boards, plastic boards, and aluminum alloys, and is an indispensable general-purpose piece of equipment in the woodworking machinery field. During wood sawing operations, the panel saw generates a large amount of sawdust and dust, so it is usually equipped with dust prevention and dust extraction devices. However, existing dust prevention devices have insufficient sealing, leading to leakage and diffusion of sawdust and dust. This phenomenon not only endangers the health of operators but may also adversely affect the transmission mechanism of the panel saw, thereby reducing the working accuracy of the equipment. Summary of the Invention

[0003] To overcome the problems existing in the prior art, the main objective of this invention is to provide a dust removal device for a panel saw, which can quickly remove wood chips and dust from the workbench surface through the first dust suction port, achieve a sealing treatment for panel sawing through the dustproof component, effectively prevent the leakage and diffusion of wood chips and dust, improve the dust suction effect of the second dust suction port, and thus improve the cleanliness of the panel saw.

[0004] This application provides a dust removal device for a panel saw. The panel saw has a workbench, a straightedge disposed on one side of the workbench, and a pressure beam located above the workbench. The workbench has a saw kerf and several air vents. The pressure beam and the workbench form a passageway for the board material to travel. The dust removal device includes:

[0005] The dustproof components are arranged on both sides of the pressure beam along the traveling direction of the plate. The dustproof components have a closed state with a closed passage and an open state with an open passage.

[0006] A driving component is used to drive the dustproof component to switch between a closed state and an open state;

[0007] The straightedge is provided with a first dust suction port, the pressure beam is provided with a second dust suction port, some of the air outlets are provided with pneumatic floats, and the remaining air outlets are provided with air outlet components, and the air outlet components are directed towards the first dust suction port.

[0008] In some embodiments, the passageway has a first passageway opening and a second passageway opening;

[0009] The dustproof component includes a rotating component and a lifting component, and the driving component includes a first driving element and a second driving element;

[0010] The first driving element drives the rotating assembly to rotate, so that the rotating assembly closes or opens the first passageway opening;

[0011] The second driving component drives the lifting assembly to move up and down, so that the lifting assembly closes or opens the second passageway.

[0012] In some embodiments, the panel saw has two opposing columns, and the pressure beam is located between the two columns;

[0013] The rotating assembly includes a rotating shaft and several first dustproof strips;

[0014] The first drive component includes a first cylinder and a rotating crank.

[0015] The rotating shaft is provided with bearings at both ends, the bearings are mounted on the column, the first end of the rotating crank is connected to the end of the rotating shaft, and the second end of the rotating crank is hinged to the output shaft of the first cylinder.

[0016] The rotating shaft is provided with a first limiting structure, and the first dustproof strip has a mounting hole for sleeved on the rotating shaft. The mounting hole is provided with a second limiting structure for engaging the first limiting structure. Under the action of the first driving member, the first dustproof strip rotates with the rotating shaft so that the first dustproof strip closes or opens the first passageway.

[0017] In some embodiments, the first dustproof strip includes an open retaining ring and a dustproof plate, and the outer periphery of the rotating shaft is provided with ribs extending axially;

[0018] The open retaining ring is provided with a first folded edge and a second folded edge extending outward radially in the circumferential direction. The open retaining ring is fitted with a rotating shaft, and the rib is located between the first folded edge and the second folded edge. The dustproof plate is connected to the first folded edge.

[0019] In some embodiments, the lifting assembly includes a movable plate and a plurality of second dustproof strips that slide with the movable plate. The plurality of second dustproof strips are distributed side by side at equal intervals along the length direction of the movable plate, and adjacent second dustproof strips are connected.

[0020] The second driving component includes two second cylinders, which are located at both ends of the moving plate. The second cylinders are fixed on the column, and the output shaft of the second cylinder is connected to the moving plate.

[0021] In some embodiments, the movable plate includes a hanging plate and a plurality of guide blocks, the guide blocks being equidistantly disposed on the hanging plate, the two sides of the guide blocks being provided with vertically extending grooves, and the second dustproof strip having a groove for receiving the guide blocks and a third folded edge for engaging the grooves.

[0022] In some embodiments, several air outlet components are arranged side by side on both sides of the saw kerf along the extension direction of the saw kerf, and the workbench has an air cavity and a mounting hole communicating with the air cavity.

[0023] The air outlet assembly includes an air duct assembly and a flexible switch. The air duct assembly has an air inlet, an air duct, and an air outlet that are interconnected. The air duct assembly is disposed on a mounting hole. The flexible switch is disposed inside the air duct assembly. When the flexible switch is in a compressed state, the air outlet is connected to the air duct. When the flexible switch is in a relaxed state, the air outlet is closed.

[0024] In some embodiments, the air duct assembly includes an upper valve sleeve and a lower valve sleeve, the lower valve sleeve is embedded in the upper valve sleeve, the upper valve sleeve is snap-fitted to the workbench, the upper valve sleeve has the air outlet, the outer periphery of the lower valve sleeve has a hollow structure, the hollow structure is the air inlet, and the elastic switch is located in the lower valve sleeve.

[0025] The upper valve sleeve is snapped into the worktable, and the upper valve sleeve is snapped into the lower valve sleeve.

[0026] In some embodiments, the resilient switch includes a ball and a spring, with a first end of the spring connected to the ball and a second end connected to the bottom wall of the lower valve sleeve. The ball is embedded in the air outlet, and the diameter of the ball is larger than the diameter of the air outlet, so that a portion of the ball protrudes outside the air outlet.

[0027] The inner diameter of the lower valve sleeve is larger than the diameter of the ball.

[0028] In some embodiments, the air outlet assembly further includes an air guide shroud located above the air outlet, the air guide shroud being connected to the resilient switch, the air guide shroud having a chamber for receiving an upper valve sleeve, the air guide shroud being able to slide up and down relative to the upper valve sleeve, and an air outlet being provided on one side of the air guide shroud facing the first dust suction port.

[0029] The technical solution provided in this application may include the following beneficial effects:

[0030] The dust removal device for panel saws provided in this application replaces some of the air outlets on the workbench with air outlet components, and the air outlet components are directed towards the first dust suction port. The dustproof components can close and open the passageway under the drive of the drive components, which improves the sealing effect between the pressure beam, the board, and the workbench, ensuring that wood dust will not escape and spread to the external environment. During the board sawing process, the air outlet components blow the wood dust on the workbench toward the first dust suction port. With the combined action of the first and second dust suction ports, the wood dust can be effectively removed, ensuring a clean working environment and protecting the health of the operators. Attached Figure Description

[0031] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0032] Figure 1 This is a top view of the panel saw shown in the embodiments of this application;

[0033] Figure 2 This is a schematic diagram of the structure of the dust removal device for a panel saw shown in the embodiments of this application;

[0034] Figure 3 This is another structural schematic diagram of the dust removal device for a panel saw shown in the embodiments of this application;

[0035] Figure 4 This is a partial structural schematic diagram of the dust removal device for a panel saw shown in the embodiments of this application;

[0036] Figure 5 yes Figure 4 Schematic diagram of the structure after the removal of the pressure beam;

[0037] Figure 6 yes Figure 2 Enlarged view of point A in the middle;

[0038] Figure 7 yes Figure 3 A partial sectional view of the structure;

[0039] Figure 8 This is a schematic diagram illustrating the cooperation between the rotating component and the first driving member in an embodiment of this application;

[0040] Figure 9 This is a schematic diagram of the structure of the rotating component shown in the embodiments of this application;

[0041] Figure 10 This is a schematic diagram illustrating the cooperation between the lifting assembly and the second driving component in an embodiment of this application;

[0042] Figure 11 This is a schematic diagram of the structure of the mounting plate shown in the embodiments of this application;

[0043] Figure 12 This is a schematic diagram of the structure of the guide block shown in an embodiment of this application;

[0044] Figure 13 This is a schematic diagram of the structure of the second dustproof strip shown in an embodiment of this application;

[0045] Figure 14 This is a schematic diagram of the air outlet assembly shown in the embodiments of this application;

[0046] Figure 15 This is an exploded schematic diagram of the air outlet assembly shown in an embodiment of this application.

[0047] Figure label:

[0048] 1. Panel saw; 10. Post;

[0049] 2. Workbench; 20. Saw kerf; 21. Air vent;

[0050] 3. Straightedge; 30. First suction port;

[0051] 4. Pressure beam; 40. Second dust extraction port;

[0052] 5. Dustproof assembly; 51. Rotating assembly; 511. Rotating shaft; 5110. First limiting structure; 512. First dustproof strip; 5120. Second limiting structure; 5121. Open retaining ring; 5122. Dustproof plate; 513. Bearing; 52. Lifting assembly; 521. Moving plate; 5211. Hanging plate; 5212. Guide block; 5212a. Slide groove; 522. Second dustproof strip; 522a. Groove; 522b. Third folded edge;

[0053] 6. Drive assembly; 61. First drive component; 611. First cylinder; 612. Rotary crank; 62. Second drive component;

[0054] 7. Air outlet assembly; 71. Air duct assembly; 711. Upper valve sleeve; 712. Lower valve sleeve; 72. Flexible switch; 721. Ball; 722. Spring; 73. Air guide cover;

[0055] 8. Board material. Detailed Implementation

[0056] Preferred embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0057] In the description of the application, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0058] Furthermore, in the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0059] Existing panel saws generate a large amount of chips and dust at the cutting point of the board during sawing. Several dust curtains composed of dust-proof strips are installed on both sides of the pressure beam. As the board moves in and out of the workbench, the dust curtains close the passage between the pressure beam and the workbench by bending. However, the deformation differences between the dust curtains result in large gaps between adjacent strips. Furthermore, the pressure beam and the workbench are not completely sealed. Therefore, during sawing, wood chips and dust fly at high speed, easily escaping through the gaps and scattering onto the workbench or the surface of the board. Larger pieces of wood chips and dust can damage the board, causing quality issues and drifting outwards. Additionally, chips and dust easily accumulate on the workbench surface, damaging bearings, cylinders, motors, and other components, affecting the equipment's performance, lifespan, and stability. To address the aforementioned technical problems, this application provides a dust removal device for a panel saw, which can quickly remove wood chips and dust from the workbench surface through a first dust suction port, and achieve a sealed treatment for panel sawing through a dustproof component, effectively preventing the leakage and diffusion of wood chips and dust, improving the dust suction effect of the second dust suction port, and thus enhancing the cleanliness of the panel saw.

[0060] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0061] like Figures 1 to 5 As shown, this application provides a dust removal device for a panel saw. The panel saw 1 has a workbench 2, a straightedge 3 located on one side of the workbench 2, and a pressure beam 4 located above the workbench 2. The workbench 2 has a saw kerf 20 and several air outlets 21. The pressure beam 4 and the workbench 2 form a passageway for the board 8 to travel.

[0062] Dustproof components 5 are provided on both sides of pressure beam 4 along the traveling direction of plate 8. The dustproof components 5 have a closed state of closed passage and an open state of open passage.

[0063] Drive component 6 is used to drive the dustproof component 5 to switch between a closed state and an open state;

[0064] The ruler 3 is provided with a first dust suction port 30, the pressure beam 4 is provided with a second dust suction port 40, some of the air outlets 21 are provided with pneumatic floats, and the remaining air outlets 21 are provided with air outlet components 7, and the air outlet direction of the air outlet components 7 is towards the first dust suction port 30.

[0065] Specifically, the workbench 2 of the panel saw 1 serves as the working area for sawing the board 8. The pressure beam 4 is located above the workbench 2. The kerf 20 of the workbench 2 is the path for the saw blade to travel and cut the board. The guide rail 3 is located at the end of the kerf 20 and below the pressure beam 4, with one side of the board 8 abutting against the guide rail 3. The bottom end face of the pressure beam 4 is used to press against the board 8. This end face and the surface of the workbench 2 form a passageway through which the board 8 can pass freely. Dustproof components 5 are located on both sides of the pressure beam 4, and can close and open both ends of the passageway under the drive of the drive component 6. The pusher device of the panel saw 1 pushes the board 8 under the pressure beam 4. After the board 8 is in place, the pressure beam 4 descends to press and fix the board 8. The sawing mechanism reciprocates in the kerf 20 to perform the sawing work on the board 8. The dustproof components 5 close the space to improve the sealing of the passageway. The straightedge 3 is designed with a hollow structure. The hollow structure inside the straightedge 3 is connected to the suction device. The straightedge 3 has multiple first dust suction ports 30 on the side facing the board 8. The pneumatic float on the air outlet 21 rolls in contact with the board. Some air outlets 21 are equipped with air outlet components 7, which are connected to the air supply device, such as a blower. The air outlet direction of the air outlet component 7 is towards the first dust suction port 30. The lower surface of the board 8 and the upper surface of the workbench 2 form a flat gas channel. When the air supply device blows air through the air outlet component 7, the air flows in the gas channel, which will carry the wood dust located in the gas channel to the vicinity of the first dust suction port 30. Under the action of the suction device, it is sucked into the straightedge 3 and collected by the collection device.

[0066] In this embodiment, air outlet components 7 are installed on some of the air outlets 21 on the workbench 2, and the air outlet direction of the air outlet components 7 is towards the first dust suction port 30. The dustproof component 5 of the dust removal device can improve the sealing effect between the pressure beam 4, the board 8, and the workbench 2, ensuring that wood dust will not escape and spread to the external environment. During the sawing process of the board 8, the air outlet components 7 blow the wood dust on the workbench 2 towards the first dust suction port 30. Under the combined action of the first dust suction port 30 and the second dust suction port 40, the wood dust can be effectively removed. The dustproof component 5 can be opened under the drive of the drive component 6, thereby opening the passageway. The pusher device of the panel saw 1 can push the board 8 onto the workbench. After the board 8 is in place, the pressure beam 4 descends, and the dustproof component 5 changes from the open state to the closed state under the drive of the drive component 6, thus closing the passageway. When the board 8 is in place and the dustproof components 5 are all closed, the pressure beam 4, the workbench 2, and the dustproof components 5 together form a closed space, ensuring that the wood chips and dust generated during the sawing of the board 8 will not escape from the closed space and spread to the external environment, which significantly improves the cleanliness of the panel saw 1 and provides better protection for the health of the operators.

[0067] like Figure 6 and Figure 7As shown, the passageway has a first passageway opening and a second passageway opening;

[0068] The dustproof component 5 includes a rotating component 51 and a lifting component 52, and the driving component 6 includes a first driving member 61 and a second driving member 62.

[0069] The first driving member 61 drives the rotating assembly 51 to rotate, so that the rotating assembly 51 closes or opens the first passageway opening;

[0070] The second driving component 62 drives the lifting assembly 52 to move up and down, so that the lifting assembly 52 closes or opens the second passageway.

[0071] Specifically, the aisle has an entrance area for the board material 8 to enter and an exit area for it to leave. The first aisle opening can be either an entrance or an exit area, and correspondingly, the second aisle opening can be either an exit or an entrance area. The positions of the rotating component 51 and the lifting component 52 can be selected according to actual needs. For example, the rotating component 51 can be located in the exit area, while the lifting component 52 can be located in the entrance area, or vice versa. After the board material 8 enters the worktable 2, driven by the first driving component 61 and the second driving component 62 respectively, the rotating component 51 and the lifting component 52 can enter the open state, thereby opening the first and second aisle openings. The pusher device of the panel saw 1 pushes the board material 8 onto the worktable 2. After the board material 8 is in place, the pressure beam 4 descends, and the rotating component 51 and the lifting component 52 change from the open state to the closed state, closing the first and second aisle openings. When the board 8 is in place, and both the rotating component 51 and the lifting component 52 are in the closed state, the pressure beam 4, the worktable 2, the rotating component 51 and the lifting component 52 together form a closed space, ensuring that the wood chips and dust generated during the sawing of the board 8 will not escape from the closed space and spread to the external environment.

[0072] In this embodiment, by configuring the first driving member 61 to drive the rotation of the rotating component 51, the rotating component 51 can be switched between the closed state and the open state; by configuring the second driving member 62 to drive the lifting component 52 to lift, the lifting component 52 can be switched between the closed state and the open state. This simplifies the structural design of the driving component 6 and ensures that the actions of the rotating component 51 and the lifting component 52 do not interfere with each other.

[0073] It is understandable that both the first drive component 61 and the second drive component 62 are controlled by the control system, which is connected to the main control system of the panel saw 1. After the main control system pushes the board 8 to the cutting position, it can send control commands to the control system, thereby controlling the rotating component 51 and the lifting component 52 to switch between the open and closed states.

[0074] In this embodiment, the first dust suction port 30 on the straightedge 3 and the second dust suction port 40 on the pressure beam 4 work together to form a directional airflow, which concentrates and adsorbs the wood dust, improving the dust removal efficiency. The dustproof component switches between the closed and open states by the drive component 6, closing the passage to form a closed space, effectively preventing the wood dust from leaking out and ensuring a clean operating environment. In addition, the pneumatic floats of some air outlets 21 reduce the friction between the board 8 and the workbench 2, and combined with the air outlet component 7 to guide the airflow direction, the flow efficiency of wood dust to the dust suction port is enhanced.

[0075] In another feasible solution, the dustproof component 5 can also be provided with two rotating components 51 or two lifting components 52 on both sides of the pressure beam 4.

[0076] To improve the sealing effect of the rotating assembly 51, based on the above specific embodiments, please refer to... Figure 6 , Figure 8 and Figure 9 The panel saw 1 has two opposing columns 10, and the pressure beam 4 is located between the two columns 10;

[0077] The rotating assembly 51 includes a rotating shaft 511 and a plurality of first dustproof strips 512;

[0078] The first drive unit 61 includes a first cylinder 611 and a rotating crank 612;

[0079] The rotating shaft 511 has bearings 513 at both ends, the bearings 513 are mounted on the column 10, the first end of the rotating crank 612 is connected to the end of the rotating shaft 511, and the second end of the rotating crank 612 is hinged to the output shaft of the first cylinder 611.

[0080] The rotating shaft 511 is provided with a first limiting structure 5110, and the first dustproof strip 512 has an installation hole for sleeved on the rotating shaft 511. The installation hole is provided with a second limiting structure 5120 for engaging the first limiting structure 5110. Under the action of the first driving member 61, the first dustproof strip 512 rotates with the rotating shaft 511 so that the first dustproof strip 512 closes or opens the first passageway.

[0081] The panel saw 1 has two columns 10 for supporting the panel saw 1, and a pressure beam 4 is located between the two columns 10. Bearings 513 are installed on the columns 10. The two ends of the rotating shaft 511 are fixed to the columns 10 by the bearings 513. The rotating shaft 511 is opposite to the front side of the pressure beam 4. The rotating assembly 51 is arranged on the first passageway, which is located in the exit area. The first dustproof strip 512 is sleeved on the rotating shaft 511 and can rotate around the rotating shaft 511. The rotating shaft 511 is provided with a first limiting structure 5110, and the first dustproof strip 512 is provided with a second limiting structure 5120. With the cooperation of the first limiting structure 5110 and the second limiting structure 5120, the first dustproof strip 512 is snapped and fixed, so that the first dustproof strip 512 can rotate with the rotating shaft 511 and enter the open state to open the first passageway. When the first driving member 61 is reset, the first dustproof strip 512 can be reset by its own gravity and enter the closed state to close the first passageway.

[0082] In this embodiment, the first passageway opening is controlled by the rotating component 51 and the second passageway opening is controlled by the lifting component 52, so that the two ends of the passageway can be opened and closed independently to adapt to the needs of different materials entering and exiting. The first driving component 61 and the second driving component 62 control the rotating component 51 and the lifting component 52 respectively, reducing mechanical complexity, reducing failure rate, and improving the stability of sealing action.

[0083] Furthermore, the first dustproof strip 512 includes an open retaining ring 5121 and a dustproof plate 5122, and the outer periphery of the rotating shaft 511 is provided with ribs extending along the axial direction;

[0084] The open retaining ring 5121 is provided with a first folded edge and a second folded edge extending outward radially in the circumferential direction. The open retaining ring 5121 is fitted with a rotating shaft 511, and the rib is located between the first folded edge and the second folded edge. The dustproof plate 5122 is connected to the first folded edge.

[0085] Specifically, the first dustproof strip 512 is mounted on a rotating shaft 511, which passes through bearings 513 on both sides of the uprights 10 of the panel saw 1. Each end of the rotating shaft 511 is equipped with a rotating crank 612, which is connected to the piston rod of the first cylinder 611. The first cylinder 611 is fixedly mounted on the uprights 10, and its extension and retraction can drive the rotating cranks 612 and the rotating shaft 511 to rotate within the bearings 513, thereby completing the opening and closing operation of the first dustproof strip 512.

[0086] The rotating shaft 511 drives the first dustproof strip 512 to rotate via ribs, while the first dustproof strip 512 rotates freely relative to the rotating shaft 511 by its own weight. When the plate 8 is fed from the rear or front, the pressure beam 4 rises, the first cylinder 611 extends its piston rod, driving the rotating crank 612 to rotate, which in turn drives the rotating shaft 511 to rotate, thereby opening the first passageway of the first dustproof strip 512 to prevent the plate 8 from colliding with the dustproof strip. When the plate 8 moves to the cutting position, the first dustproof strip 512 closes. Due to the presence of the plate 8 and the free rotation capability of the first dustproof strip 512 relative to the rotating shaft 511, part of the first dustproof strip 512 cannot return to its initial state (i.e., the vertically downward state), but instead hangs naturally on the upper surface of the plate 8. During the saw blade's movement from right to left to cut the plate 8, the dust generated during sawing is effectively prevented from spreading outwards due to the obstruction of the first dustproof strip 512 in front of the pressure beam 4.

[0087] In this embodiment, the first cylinder 611 drives the rotating shaft 511 to rotate via the rotating crank 612, thereby causing the first dustproof strip 512 to quickly close or open the passage. The response speed is fast and the sealing effect is significant. Furthermore, the first limiting structure 5110 on the rotating shaft 511 engages with the second limiting structure 5120 of the first dustproof strip 512 to ensure the accurate position of the dustproof strip and avoid misalignment due to vibration.

[0088] In another feasible solution, to improve the sealing effect between the first dustproof strip 512 and the plate 8 and the workbench 2, the gap between the first dustproof strip 512 hanging down on the upper surface of the plate 8 and hanging down on the workbench 2 is eliminated. Based on the aforementioned specific embodiment, the dustproof plate 5122 is composed of a dustproof outer shell and a dustproof inner shell, and the first limiting structure 5110 and the second limiting structure 5120 are interconnected by an elastic element. Specifically, the dustproof inner shell is embedded in the dustproof outer shell and can slide on the dustproof outer shell. The elastic element can be a durable rubber band or a spring 722. After the first cylinder 611 is reset, the first dustproof strip 512 rotates under the gravity of the dustproof outer shell and the dustproof inner shell. The dustproof inner shell is automatically retracted into the dustproof outer shell by the pressure of the plate 8, and under the elastic force of the elastic element, it pushes the open retaining ring 5121 to continue rotating, thereby driving the dustproof outer shell and the dustproof inner shell to move outward, so that the first dustproof strip 512 placed on the plate 8 can complete the vertical reset operation, thereby avoiding the problem of gaps between the first dustproof strips 512.

[0089] Although the vertical reset operation of the first dustproof strip 512 is achieved through the dustproof inner shell, dustproof outer shell, and elastic element, the dustproof inner shell is prone to scratching the plate 8 in actual application. To solve this technical problem, based on the aforementioned specific embodiment, a ball bearing is added to the bottom of the dustproof inner shell to achieve rolling contact between the dustproof inner shell and the plate 8, thus avoiding damage to the plate 8.

[0090] In this embodiment, the open retaining ring 5121 cooperates with the ribs of the rotating shaft 511 to realize convenient installation and replacement of the dustproof plate 5122, reduce maintenance costs, and the dustproof plate 5122 hangs down naturally by gravity, adhering to the surface of the plate or the workbench 2, eliminating gaps and preventing dust from escaping from the edges.

[0091] In a preferred embodiment, please refer to Figures 10 to 13 The aforementioned lifting assembly 52 includes a movable plate 521 and a plurality of second dustproof strips 522 that slide in cooperation with the movable plate 521. The plurality of second dustproof strips 522 are distributed side by side at equal intervals along the length direction of the movable plate 521, and adjacent second dustproof strips 522 are connected.

[0092] The second driving component 62 includes two second cylinders, which are located at both ends of the moving plate 521. The second cylinders are fixed on the column 10, and the output shaft of the second cylinders is connected to the moving plate 521.

[0093] In this embodiment, the second dustproof strip 522 is raised and lowered by the moving plate 521 and its height is automatically adjusted according to the thickness of the plate. It fits tightly against the plate and the workbench 2 to adapt to diverse processing needs. Multiple second dustproof strips 522 are distributed side by side at equal intervals to disperse the pressing force, avoid local wear, and extend the service life.

[0094] Furthermore, the movable plate 521 includes a hanging plate 5211 and a plurality of guide blocks 5212. The guide blocks 5212 are equidistantly disposed on the hanging plate 5211. The two sides of the guide blocks 5212 are provided with vertically extending grooves 5212a. The second dustproof strip 522 has a groove 522a for receiving the guide blocks 5212 and a third folded edge 522b for engaging the grooves 5212a.

[0095] In this embodiment, the groove 5212a of the guide block 5212 cooperates with the third folded edge 522b of the second dustproof strip 522 to ensure that the dustproof strip moves vertically during the lifting process and avoids tilting and jamming. The combined structure of the hanging plate 5211 and the guide block 5212 simplifies processing and assembly and improves production efficiency.

[0096] In another feasible solution, to simplify the structure of the movable plate 521, the guide block 5212 is omitted. The movable plate 521 is a frame or plate-shaped component. The movable plate 521 has sliding holes that pass through both ends in its height direction. The second dustproof strip 522 is suspended on the movable plate 521 through the sliding holes, and the head of the second dustproof strip 522 is larger than the diameter of the sliding hole. Specifically, the movable plate 521 is a plate-shaped structure with a top surface, a bottom surface, and four sides. It slides from the top surface through the bottom surface. The second dustproof strip 522 has a sliding hole and is engaged with the movable plate 521. When the second driving member 62 drives the movable plate 521 to rise, the second dustproof strip 522 rises with the movable plate 521 under the action of engagement. When the plate 8 is pushed to the cutting position, the second driving member 62 drives the movable plate 521 to fall, and the second dustproof strip 522 falls with it. During the descent of the second dustproof strip 522, the second dustproof strip 522 on the plate 8 abuts against the surface of the plate 8, while the other second dustproof strips 522 abut against the worktable 2, thus sealing the second passageway opening.

[0097] like Figure 14 and Figure 15 As shown, based on the above specific implementation, along the extension direction of the saw kerf 20, several air outlet components 7 are arranged side by side on both sides of the saw kerf 20, and the workbench 2 has an air cavity and a mounting hole communicating with the air cavity.

[0098] The air outlet assembly 7 includes an air duct assembly 71 and a flexible switch 72. The air duct assembly 71 has an air inlet, an air duct, and an air outlet that are interconnected. The air duct assembly 71 is disposed on a mounting hole. The flexible switch 72 is disposed inside the air duct assembly 71. When the flexible switch 72 is in a compressed state, the air outlet is connected to the air duct. When the flexible switch 72 is in a relaxed state, the air outlet is closed.

[0099] In this embodiment, the elastic switch 72 automatically compresses or expands according to the gravity of the plate 8 to control the air outlet to open or close, realizing the energy-saving mode of "air outlet when there is a plate, and closed when there is no plate". In addition, the air duct assembly 71 works with the elastic switch 72 to accurately guide the airflow to the first dust suction port 30, avoiding airflow dispersion that would reduce dust removal efficiency.

[0100] In some embodiments, the air duct assembly 71 includes an upper valve sleeve 711 and a lower valve sleeve 712, the lower valve sleeve 712 being embedded in the upper valve sleeve 711, the upper valve sleeve 711 being snap-fit ​​connected to the workbench 2, the upper valve sleeve 711 having the air outlet, the lower valve sleeve 712 having a hollow structure on its outer periphery, the hollow structure being the air inlet, and the elastic switch 72 being disposed in the lower valve sleeve 712;

[0101] The upper valve sleeve 711 is snapped into the workbench 2, and the upper valve sleeve 711 is snapped into the lower valve sleeve 712.

[0102] The upper valve sleeve 711 and the lower valve sleeve 712 are connected by snap-fit, and the upper valve sleeve 711 is also connected to the worktable 2 by snap-fit. The upper valve sleeve 711 has snap-fit ​​on its outer periphery and a groove on its inner sidewall. The mounting hole of the worktable 2 has a slot on its inner sidewall designed to engage with the snap-fit, while the outer periphery of the lower valve sleeve 712 has a hook that engages with the groove. Both the upper valve sleeve 711 and the lower valve sleeve 712 are cylindrical. One end of the upper valve sleeve 711 is open, and the other end has an air outlet with a diameter smaller than the inner diameter of the upper valve sleeve 711. The lower valve sleeve 712 fits into the upper valve sleeve 711. Its end facing the air outlet is also open, while the other end can be a sealed surface or have a corresponding perforated structure. The flexible switch 72 is housed within the lower valve sleeve 712, with its end abutting against the end face of the lower valve sleeve 712. The upper valve sleeve 711 and the lower valve sleeve 712 together define an air outlet cavity for accommodating the flexible switch 72. When no plate 8 is placed on the workbench 2, the flexible switch 72 is in an expanded state, which closes the air outlet. When the flexible switch 72 deforms due to the weight of the plate 8, it contracts, thereby opening the air outlet and allowing air to escape.

[0103] Furthermore, the upper valve sleeve 711 and the lower valve sleeve 712 can be manufactured using an integrated injection molding process. In a preferred embodiment, nylon or polycarbonate is selected as the manufacturing material. This type of structure is particularly suitable for high-strength assembly requirements. Using recycled materials, the material can be directly injection molded on an injection molding machine, enabling the recycling of recycled plastics.

[0104] In this embodiment, the upper valve sleeve 711 and the lower valve sleeve 712 are connected by a snap-fit, which facilitates disassembly and cleaning of dust accumulation in the air duct, prevents blockage from affecting air outlet efficiency, and at the same time, the nested valve sleeve design can reduce the gap between components, ensure that the airflow is discharged directionally only from the air outlet, and improve the stability of air pressure.

[0105] To improve the durability of the flexible switch 72, the flexible switch 72 includes a ball 721 and a spring 722. The first end of the spring 722 is connected to the ball 721, and the second end is connected to the bottom wall of the lower valve sleeve 712. The ball 721 is embedded in the air outlet, and the diameter of the ball 721 is larger than the diameter of the air outlet, so that a portion of the ball 721 is exposed outside the air outlet.

[0106] The inner diameter of the lower valve sleeve 712 is larger than the diameter of the ball 721. The ball 721 can be made of metal or plastic. In some embodiments, the ball 721 can be made of steel ball or nylon ball. When steel ball is used, the spring 722 is welded to the steel ball. When nylon ball is used, the spring 722 and the nylon ball can be integrated by injection molding through a mold to improve the connection between the nylon ball and the spring 722.

[0107] Based on the above specific embodiments, the air outlet assembly 7 further includes an air guide shroud 73, which is located above the air outlet and connected to the elastic switch 72. The air guide shroud 73 has a chamber for accommodating the upper valve sleeve 711 and is capable of sliding up and down relative to the upper valve sleeve 711. An air guide outlet is provided on one side of the air guide shroud 73, facing the first dust suction port 30. In some embodiments, the air guide shroud 73 also has an arc-shaped air guide surface for guiding airflow.

[0108] In this embodiment, the arc-shaped air guide surface of the air guide hood 73 concentrates the airflow from the outlet and directs it to the first dust suction port 30, reducing the residue of wood chips on the surface of the workbench 2. The air guide hood 73 can slide up and down to adapt to the thickness of the board material and avoid airflow recirculation that could cause secondary dust.

[0109] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A dust removal device for a panel saw, the panel saw (1) having a workbench (2), a straightedge (3) disposed on one side of the workbench (2), and a pressure beam (4) located above the workbench (2), the workbench (2) having a saw kerf (20) and a plurality of air outlets (21), the pressure beam (4) and the workbench (2) forming a passage for the movement of a board (8), characterized in that, include: The dustproof component (5) is provided on both sides of the pressure beam (4) along the traveling direction of the plate (8). The dustproof component (5) has a closed state of closed passage and an open state of open passage. A drive component (6) is used to drive the dustproof component (5) to switch between a closed state and an open state; The straightedge (3) is provided with a first dust suction port (30), the pressure beam (4) is provided with a second dust suction port (40), some of the air outlets (21) are provided with pneumatic floats, and the remaining air outlets (21) are provided with air outlet components (7). Along the extension direction of the saw kerf (20), several air outlet components (7) are arranged side by side on both sides of the saw kerf (20). The workbench (2) has an air cavity and a mounting hole communicating with the air cavity. The air outlet assembly (7) includes an air duct assembly (71) and a flexible switch (72). The air duct assembly (71) has an air inlet, an air duct, and an air outlet that are interconnected. The air duct assembly (71) is located on a mounting hole. The flexible switch (72) is located inside the air duct assembly (71). When the flexible switch (72) is in a compressed state, the air outlet is connected to the air duct. When the flexible switch (72) is in a relaxed state, the air outlet is closed. The air duct assembly (71) includes an upper valve sleeve (711) and a lower valve sleeve (712). The lower valve sleeve (712) is embedded in the upper valve sleeve (711). The upper valve sleeve (711) is snap-fitted to the workbench (2). The upper valve sleeve (711) has the air outlet. The outer periphery of the lower valve sleeve (712) is provided with a hollow structure, which is the air inlet. The elastic switch (72) is located in the lower valve sleeve (712). The upper valve sleeve (711) is snapped into the workbench (2), and the upper valve sleeve (711) is snapped into the lower valve sleeve (712); The elastic switch (72) includes a ball (721) and a spring (722). The first end of the spring (722) is connected to the ball (721), and the second end is connected to the bottom wall of the lower valve sleeve (712). The ball (721) is embedded in the air outlet, and the diameter of the ball (721) is larger than the diameter of the air outlet, so that part of the ball (721) is exposed outside the air outlet. The inner diameter of the lower valve sleeve (712) is larger than the diameter of the ball (721); The air outlet assembly (7) also includes an air guide shroud (73), which is located above the air outlet. The air guide shroud (73) is connected to the elastic switch (72). The air guide shroud (73) has a chamber for receiving the upper valve sleeve (711). The air guide shroud (73) can slide up and down relative to the upper valve sleeve (711). An air guide outlet is provided on one side of the air guide shroud (73), and the air guide outlet faces the first dust suction port (30). The passageway has a first passageway opening and a second passageway opening; The dustproof component (5) includes a rotating component (51) and a lifting component (52), and the driving component (6) includes a first driving member (61) and a second driving member (62); The first driving member (61) drives the rotating assembly (51) to rotate, so that the rotating assembly (51) closes or opens the first passageway opening; The second driving member (62) drives the lifting assembly (52) to rise or fall, so that the lifting assembly (52) closes or opens the second passageway opening; The lifting assembly (52) includes a movable plate (521) and a plurality of second dustproof strips (522) that slide with the movable plate (521). The plurality of second dustproof strips (522) are distributed side by side at equal intervals along the length direction of the movable plate (521), and adjacent second dustproof strips (522) are connected. The second driving component (62) includes two second cylinders, which are located at both ends of the moving plate (521). The second cylinders are fixed on the column (10), and the output shaft of the second cylinders is connected to the moving plate (521). The movable plate (521) includes a hanging plate (5211) and a plurality of guide blocks (5212). The guide blocks (5212) are equidistantly disposed on the hanging plate (5211). The two sides of the guide blocks (5212) are provided with vertically extending grooves (5212a). The second dustproof strip (522) has a groove (522a) for receiving the guide blocks (5212) and a third folded edge (522b) for engaging the grooves (5212a).

2. The dust removal device for a panel saw according to claim 1, characterized in that, The panel saw (1) has two opposing columns (10), and the pressure beam (4) is located between the two columns (10); The rotating assembly (51) includes a rotating shaft (511) and a plurality of first dustproof strips (512); The first drive unit (61) includes a first cylinder (611) and a rotating crank (612); The rotating shaft (511) has bearings (513) at both ends, the bearings (513) are mounted on the column (10), the first end of the rotating crank (612) is connected to the end of the rotating shaft (511), and the second end of the rotating crank (612) is hinged to the output shaft of the first cylinder (611). The rotating shaft (511) is provided with a first limiting structure (5110), and the first dustproof strip (512) has an installation hole for sleeved on the rotating shaft (511). The installation hole is provided with a second limiting structure (5120) for engaging the first limiting structure (5110). Under the action of the first driving member (61), the first dustproof strip (512) rotates with the rotating shaft (511) so that the first dustproof strip (512) closes or opens the first passageway.

3. The dust removal device for a panel saw according to claim 2, characterized in that, The first dustproof strip (512) includes an open retaining ring (5121) and a dustproof plate (5122), and the outer periphery of the rotating shaft (511) is provided with ribs extending along the axial direction; The open retaining ring (5121) is provided with a first folded edge and a second folded edge extending outward radially in the circumferential direction. The open retaining ring (5121) is fitted with a rotating shaft (511), and the rib is located between the first folded edge and the second folded edge. The dustproof plate (5122) is connected to the first folded edge.

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