A timber cutting machine

Abstract

This invention provides a wood cutting machine, including a negative pressure conveying device and a cutting device. The cutting device includes a support, a crossbeam, a first drive mechanism, a working arm, a second drive mechanism, and a cutting mechanism. The crossbeam is vertically and vertically mounted on the support; the working arm is horizontally and horizontally mounted on the crossbeam; and the cutting mechanism is mounted on the working arm via an angle adjustment structure. In use, the first drive mechanism drives the crossbeam to move vertically, the second drive mechanism drives the working arm to move horizontally, and the angle adjustment structure drives the cutting mechanism to swing within a preset angle range. This invention, through the coordinated operation of the first drive mechanism, the second drive mechanism, and the angle adjustment structure, achieves motion control of the cutting mechanism in three dimensions: vertical, horizontal, and angular. It can adapt to complex cutting needs, avoids dimensional deviations and roughness problems caused by manual cutting, reduces reliance on operator experience and skills, avoids extensive manual intervention, and reduces labor intensity.

Description

Technical Field

[0001] This utility model relates to the field of structural core material processing technology, specifically to a wood cutting machine. Background Technology

[0002] Wind turbine blades are the core components of wind turbine generators, and their performance directly affects the efficiency of converting wind energy into electrical energy. The blade core material is a critical component of the blade. By employing a sandwich structure in the leading edge, trailing edge, and web of the blade, the blade's weight can be reduced, structural stiffness increased, and local instability prevented, thereby improving the overall load-bearing capacity of the blade. This requires reducing blade weight while ensuring blade stability, and increasing the wind-catching area while meeting stiffness requirements.

[0003] Because wind turbine blades are designed according to complex aerodynamic principles and mechanical performance requirements, their contours are typically irregular, resulting in irregular shapes for the inner walls of the blade cavity. To achieve a good fit between the core material and the inner wall of the wind turbine blade, and to ensure the stability and reliability of the overall blade structure, precise cutting and chamfering of the core material are usually required. Specifically, the core material is typically cut into multiple small pieces to better fit the complex and varied contours of the inner wall; simultaneously, the core material is chamfered to create a structure with specific bevels. This irregular inner wall design of the wind turbine blade means that the slope of the beveled structure on the core material is not constant, but varies as the bevel extends.

[0004] In existing technologies, foam beveling machines are mainly used to cut the core material, enabling large-scale beveling of the core material. However, existing foam beveling machines can only process beveled structures with a fixed slope, and cannot process beveled structures with varying slopes. This makes it difficult for the core material to perfectly fit the irregular inner wall of the wind turbine blade. This not only affects the overall stability of the blade structure, but also easily leads to local stress concentration, reducing the blade's load-bearing capacity and service life. Therefore, in order to fit the inner wall as closely as possible, additional manual grinding or cutting of the core material is required, which greatly increases the labor and time costs of production and reduces production efficiency. At the same time, manual grinding or cutting heavily relies on the operator's experience and skills, which can easily lead to problems such as dimensional deviations. Manual intervention not only increases labor intensity, but more importantly, frequent manual adjustments of the cutting tools are time-consuming, seriously affecting overall production efficiency.

[0005] Therefore, there is a need for a wood cutting machine that can automate and batch process inclined plane structures with varying slopes, while significantly reducing human intervention. Utility Model Content

[0006] Therefore, the technical problem to be solved by this utility model is to overcome the technical defects of existing foam chamfering machines, which can only process inclined structures with a fixed slope and cannot process inclined structures with varying slopes. This makes it difficult for the core material to fit perfectly with the irregular inner wall of the fan blades, requiring manual secondary grinding or cutting, resulting in low production efficiency and difficulty in guaranteeing cutting quality. The present invention provides a wood cutting machine that can achieve automated and batch processing of inclined structures with varying slopes and greatly reduce human intervention.

[0007] Therefore, this utility model provides a wood cutting machine, including a negative pressure conveying device for adsorbing and moving the core board, and a cutting device for cutting the core board located on the negative pressure conveying device; the cutting device includes:

[0008] support;

[0009] A horizontal beam is installed on the bracket at one end, which can be moved up and down via a first guide structure;

[0010] A first drive mechanism is disposed between the bracket and the crossbeam, and is used to receive external signals to drive the crossbeam to move up and down;

[0011] The working arm is mounted on the crossbeam, with one end movable left and right along the axis of the crossbeam via a second guide structure;

[0012] The second drive mechanism is disposed between the crossbeam and the working arm, and is used to receive external signals to drive the working arm to move horizontally;

[0013] A cutting mechanism includes a cutting component; the cutting mechanism is rotatably mounted on the other end of the working arm via an angle adjustment structure, the angle adjustment structure being used to receive external signals to drive the cutting mechanism to swing within a preset angle range, thereby changing the angle between the cutting component and the core plate to be cut.

[0014] Furthermore, the negative pressure conveying device includes:

[0015] frame;

[0016] The negative pressure box is fixedly installed on the frame, and its top wall is provided with multiple air holes; the inside of the negative pressure box can be connected to the air extraction assembly through a negative pressure pipe.

[0017] A conveyor belt is arranged around the circumference of the negative pressure box and is in close contact with the top wall of the negative pressure box; the conveyor belt is provided with a plurality of adsorption holes for adsorbing the core plate, and the adsorption holes are connected to the interior of the negative pressure box through the air holes;

[0018] A drive assembly is mounted on the frame and is connected to the conveyor belt.

[0019] Furthermore, the first guide structure includes:

[0020] The first guide rail is vertically mounted on the bracket;

[0021] The first slider is located at one end of the crossbeam and can be slidably connected to the first guide rail.

[0022] Furthermore, the first driving mechanism includes:

[0023] The first ball screw is rotatably mounted on the bracket via a first rotating connection structure;

[0024] The first ball nut is fixedly installed at one end of the crossbeam 12 and can be screwed into the first ball screw.

[0025] A first motor is fixedly mounted on the bracket, and its output end is connected to the first ball screw to drive the first ball screw to rotate in both directions.

[0026] Furthermore, the second guide structure includes:

[0027] The second guide rail is horizontally mounted on the crossbeam;

[0028] The second slider is located at one end of the working arm and can be slidably connected to the second guide rail.

[0029] Furthermore, the second drive mechanism includes:

[0030] The second ball screw is rotatably mounted on the crossbeam via a second rotary connection structure;

[0031] The second ball nut is fixedly installed at one end of the working arm and can be screwed into the second ball screw.

[0032] The second motor is fixedly mounted on the crossbeam, and its output end is connected to the second ball screw to drive the second ball screw to rotate in both directions.

[0033] Furthermore, the angle adjustment structure includes:

[0034] A speed reducer is fixedly installed at the other end of the working arm, and the housing of the saw blade motor is fixedly connected to the output end of the speed reducer;

[0035] The third motor is fixedly mounted on the reducer, and the output end of the third motor is connected to the input end of the reducer for driving the reducer to drive the saw blade motor to swing within a preset angle range.

[0036] Furthermore, it also includes a sawdust cleaning device, the sawdust cleaning device comprising:

[0037] The crusher includes a housing and a set of crushing blades disposed inside the housing; the collection port at the top of the housing is closely fitted with the edge of the conveyor belt and adapted to the cutting operation area of ​​the conveyor belt, for guiding the cut waste into the housing;

[0038] An air blowing assembly is mounted above or to the side of the cutting area of ​​the conveyor belt via a first support structure and can be connected to an air source via an air supply duct. The air blowing assembly has an air blowing port facing the cutting area, and the airflow direction of the air blowing port is directed towards the collection port, for blowing waste material into the box.

[0039] The dust collection component is mounted above or to the side of the cutting area of ​​the conveyor belt via a second support structure and can be connected to a dust collection device via a first dust collection pipe; the dust collection component has a first dust suction port facing the cutting area for absorbing dust generated during the cutting process.

[0040] Furthermore, the bottom of the housing is provided with a conveying port, which can be connected to a dust collection device through a third dust collection pipe to guide the waste material crushed by the crushing blade assembly into the dust collection device.

[0041] Furthermore, it also includes:

[0042] A machine cover is provided outside the cutting device to form an installation space; the collection port and the air blowing assembly are both located within the installation space, the conveyor belt is at least partially located within the installation space, and a core plate feed port is formed between the bottom of the machine cover and the conveyor belt; the machine cover has a plurality of pipe holes.

[0043] The technical solution provided by this utility model has the following advantages:

[0044] This utility model discloses a wood cutting machine, comprising a negative pressure conveying device for adsorbing and moving a core board, and a cutting device for cutting the core board located on the negative pressure conveying device. The cutting device includes a support, a crossbeam, a first driving mechanism, a working arm, a second driving mechanism, and a cutting mechanism. The crossbeam is horizontally arranged, with one end mounted on the support via a first guide structure. The first driving mechanism is located between the support and the crossbeam and is used to receive external signals to drive the crossbeam to move up and down. One end of the working arm is mounted on the crossbeam via a second guide structure and can move left and right along the axis of the crossbeam. The second driving mechanism is located between the crossbeam and the working arm and is used to receive external signals to drive the working arm to move horizontally. The cutting mechanism includes a cutting component. The cutting mechanism is rotatably mounted on the other end of the working arm via an angle adjustment structure. The angle adjustment structure is used to receive external signals to drive the cutting mechanism to swing within a preset angle range, thereby changing the angle between the cutting component and the core board to be cut.

[0045] In operation, the wood cutting machine of this invention receives relevant cutting parameters from the external control system and generates control signals, which are then sent to the first drive mechanism, the second drive mechanism, and the angle adjustment structure. The first drive mechanism (such as a servo motor) receives the external control signals and drives the crossbeam to move up and down, adjusting the vertical position of the cutting component. The second drive mechanism (such as a servo motor) receives the external control signals and drives the working arm to move left and right, adjusting the horizontal position of the cutting component. The angle adjustment structure (such as a servo motor) receives the external control signals and drives the cutting mechanism to swing within a preset angle range, adjusting the angle between the cutting component and the core board to be cut to adapt to the geometry of the area to be cut and the cutting requirements. The operator starts the cutting program (or the cutting program starts automatically after the cutting component is in position), and the cutting component begins to operate. The operator places the core board to be cut on the negative pressure conveying device to ensure accurate placement of the core board for subsequent cutting. The negative pressure conveying device drives the core board to move along the feed direction, causing the cutting component to cut the core board. During the cutting process, the first and second drive mechanisms adjust the positions of the crossbeam and working arm in real time according to the pre-set cutting path. At the same time, the angle adjustment structure adjusts the angle of the cutting components in real time according to the requirements of the cutting path, ensuring high precision and flexibility in the cutting process.

[0046] This wood cutting machine, through the coordinated operation of a first drive mechanism, a second drive mechanism, and an angle adjustment structure, achieves high-precision motion control of the cutting mechanism in three dimensions: vertical, horizontal, and angular. It can adapt to complex, multi-dimensional cutting needs, effectively avoiding dimensional deviations and surface roughness problems caused by traditional manual cutting, and ensuring the geometric accuracy of the blade core material. The entire cutting process is driven by external signals, achieving automation from three-dimensional path tracking to cutting angle adjustment. This greatly reduces reliance on operator experience and skills, avoids extensive manual intervention, and lowers labor intensity. Attached Figure Description

[0047] To more clearly illustrate the technical solutions in the prior art or specific embodiments of this utility model, the accompanying drawings used in the description of the prior art or specific embodiments are briefly introduced below.

[0048] Figure 1 This is a schematic diagram of the overall structure of the wood cutting machine of this utility model.

[0049] Figure 2 This is a three-dimensional view after part of the hood has been removed.

[0050] Figure 3 It is Figure 2 Enlarged structural diagram of part A.

[0051] Figure 4 yes Figure 1 A sectional perspective view.

[0052] Figure 5 yes Figure 4 Enlarged structural diagram of section B.

[0053] Figure 6 yes Figure 2 Another stereoscopic view.

[0054] Figure 7 It is a 3D view after the air supply duct, the first dust collection duct, the second dust collection duct, and the third dust collection duct have been installed.

[0055] Figure 8 This is an assembly view of the cutting device, fixed beam, partition, side partition, second adjustable bracket, and second pressure roller.

[0056] Figure 9 This is a schematic diagram of the cutting device.

[0057] Figure 10 yes Figure 9 A three-dimensional view with the accordion cover removed.

[0058] Figure 11 yes Figure 10 A three-dimensional view of a sectional view.

[0059] Figure 12 This is an exploded schematic diagram of the first ball screw and the first rotating connection structure.

[0060] Figure 13 yes Figure 4 A sectional view.

[0061] Figure 14 It is an exploded view of the working arm, cutting mechanism, and angle adjustment structure.

[0062] Figure 15 This is a schematic diagram showing that the air supply duct and the negative pressure duct are connected to the same fan.

[0063] Reference numerals: 001, Core board; 01, Air supply duct; 02, First dust collection duct; 03, Second dust collection duct; 04, Third dust collection duct; 05, Fan; 06, Negative pressure duct; 11, Support; 111, First guide rail; 12, Crossbeam; 121, First slider; 123, Second guide rail; 13, Working arm; 131, Second slider; 133, Reducer; 134, Third motor; 14, Cutting mechanism; 141, Circular saw; 142, Saw blade motor; 151, First ball screw; 152, First ball nut; 153, First motor 154. First mounting shaft; 1541. First stepped surface; 161. First bearing housing; 1611. First stepped hole; 1612. Second stepped surface; 162. First bearing; 163. First bushing; 164. Second bushing; 165. First end cover; 166. First set screw lock nut; 1661. First set screw; 171. Second ball screw; 172. Second ball nut; 173. Second motor; 174. Second mounting shaft; 1741. Third stepped surface; 181. Second bearing housing; 1811. Second stepped hole; 1812. Fourth step surface; 182, Second bearing; 183, Third bushing; 184, Fourth bushing; 185, Second end cover; 186, Second set screw locking nut; 1861, Second set screw; 101, Bellows cover; 102, Coupling; 103, Oil seal; 21, Housing; 211, Collection port; 212, Conveying port; 22, Crusher assembly; 23, Air guide hood; 231, Air blowing port; 232, Air inlet; 24, Air guide plate; 251, Front baffle; 2511, Second dust suction port; 252, Side baffle; 26, Dust suction hood; 261, First dust suction port ; 262. Dust outlet; 27. Fixed beam; 271. Partition; 272. Side partition; 273. Second adjustable bracket; 274. Second pressure roller; 28. Machine cover; 281. Installation space; 282. Core board feed inlet; 283. Pipe hole; 31. Frame; 311. First adjustable bracket; 312. First pressure roller; 32. Negative pressure box; 321. Air hole; 322. Pressure gauge; 33. Conveyor belt; 331. Adsorption hole; 34. Mounting frame; 35. Driven roller; 36. Driven roller; 37. Sprocket; 38. Conveyor belt servo motor; 39. Drive chain. Detailed Implementation

[0064] To enable those skilled in the art to better understand this solution, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0065] It should be noted that the terms "first," "second," etc., in the claims and specification of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such as a process, method, system, product, or device that includes a series of steps or units, not limited to those steps or units explicitly listed, but may also include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0066] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the term "multiple" should mean two or more. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0067] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0068] This embodiment provides a wood cutting machine, such as... Figure 1-15As shown, the device includes a negative pressure conveying device for adsorbing and moving a core board, and a cutting device for cutting the core board located on the negative pressure conveying device. The cutting device includes a support 11, a crossbeam 12, a first drive mechanism, a working arm 13, a second drive mechanism, and a cutting mechanism 14. The crossbeam 12 is horizontally arranged, and one end is mounted on the support 11 through a first guide structure. The first drive mechanism is located between the support 11 and the crossbeam 12 and is used to receive external signals to drive the crossbeam 12 to move up and down. One end of the working arm 13 is mounted on the crossbeam 12 through a second guide structure and can move left and right along the axis of the crossbeam 12. The second drive mechanism is located between the crossbeam 12 and the working arm 13 and is used to receive external signals to drive the working arm 13 to move horizontally. The cutting mechanism 14 includes a cutting component. The cutting mechanism is rotatably mounted on the other end of the working arm 13 through an angle adjustment structure. The angle adjustment structure is used to receive external signals to drive the cutting mechanism to swing within a preset angle range, thereby changing the angle between the cutting component and the core board to be cut.

[0069] In this embodiment, the negative pressure conveying device can adsorb and move the core plate to be cut, causing it to move along the feed direction. The first and second drive mechanisms can be servo motors, hydraulic cylinders, or servo slides, etc. The first and second drive mechanisms can receive external control signals and perform corresponding actions based on the received control signals. The external control signals are generated by an external control device, which can be a PLC, motion controller, industrial computer, or CNC system, etc. The first and second drive mechanisms are connected to this external control device via wired or wireless means to receive the control signals.

[0070] In this embodiment of the wood cutting machine, during use, the external control system (e.g., CNC system or industrial computer) receives relevant cutting parameters (cutting path, angle data, etc.) and generates control signals, which are then sent to the first drive mechanism, the second drive mechanism, and the angle adjustment structure. The first drive mechanism (e.g., a servo motor) receives the external control signals and drives the crossbeam 12 to move up and down, adjusting the vertical position of the cutting component. The second drive mechanism (e.g., a servo motor) receives the external control signals and drives the working arm 13 to move left and right, adjusting the horizontal position of the cutting component. The angle adjustment structure (e.g., a servo motor) receives the external control signals and drives the cutting mechanism 14 to swing within a preset angle range, adjusting the angle between the cutting component and the core board to be cut to adapt to the geometry of the area to be cut and the cutting requirements. The operator starts the cutting program (or the cutting program starts automatically after the cutting component is in place), and the cutting component begins to operate. The operator places the core board to be cut on the negative pressure conveying device to ensure that the core board is placed accurately for subsequent cutting. The negative pressure conveying device drives the core board to move along the feed direction, causing the cutting component to cut the core board. During the cutting process, the first drive mechanism and the second drive mechanism adjust the position of the crossbeam 12 and the working arm 13 in real time according to the preset cutting path. At the same time, the angle adjustment structure adjusts the angle of the cutting components in real time according to the requirements of the cutting path to ensure high precision and flexibility in the cutting process.

[0071] The wood cutting machine in this embodiment achieves high-precision motion control of the cutting mechanism in three dimensions—vertical, horizontal, and angular—through the coordinated operation of the first drive mechanism, the second drive mechanism, and the angle adjustment structure. This enables it to adapt to complex, multi-dimensional cutting needs, effectively avoiding dimensional deviations and surface roughness problems caused by traditional manual cutting, and ensuring the geometric accuracy of the blade core material. The entire cutting process is driven by external signals, automating everything from three-dimensional path tracking to cutting angle adjustment. This significantly reduces reliance on operator experience and skills, avoids extensive manual intervention, and lowers labor intensity.

[0072] The wood cutting machine of this embodiment, further, such as Figure 1-5 As shown, the negative pressure conveying device includes a frame 31, a negative pressure box 32, a conveyor belt 33, and a drive assembly. The negative pressure box 32 is fixedly installed on the frame 31, and its top wall is provided with multiple air holes 321. The interior of the negative pressure box 32 can be connected to the air extraction assembly through a negative pressure pipe 06. The conveyor belt 33 is arranged around the circumference of the negative pressure box 32 and is in close contact with the top wall of the negative pressure box 32. The conveyor belt 33 is provided with multiple adsorption holes 331 for adsorbing the core plate, and the adsorption holes 331 are connected to the interior of the negative pressure box 32 through the air holes 321. The drive assembly is installed on the frame 31 and is drivenly connected to the conveyor belt 33.

[0073] In this embodiment, the frame 31 can be constructed from high-strength metal profiles welded or bolted together, providing sufficient rigidity and stability. A negative pressure chamber 32 is fixedly installed above or inside the frame 31. The negative pressure chamber 32 can be made of a well-sealed metal (such as stainless steel or aluminum alloy) or polymer material, forming a relatively closed cavity. Multiple air holes 321 are uniformly or arrayed as needed on its top wall. The size and distribution density of these air holes 321 are optimized to ensure uniform and sufficient negative pressure during core plate adsorption. The interior of the negative pressure chamber 32 is connected to an external air extraction assembly via a negative pressure pipe 06. The air extraction assembly is typically one or more industrial-grade vacuum pumps or negative pressure fans, which extract air from the interior of the negative pressure chamber 32 to create a negative pressure environment below atmospheric pressure. A pressure gauge 322 can also be installed on the frame 31, connected to the interior of the negative pressure chamber 32, to monitor the internal pressure and prevent abnormal negative pressure adsorption. When the core board 001 is placed on the conveyor belt 33 and passes above the negative pressure box 32, the external atmospheric pressure presses the core board 001 against the conveyor belt 33, thus achieving a firm adsorption of the core board 001. The conveyor belt 33 is arranged circumferentially around the negative pressure box 32. The conveyor belt 33 is precisely tensioned and kept in close contact with the top wall of the negative pressure box 32 to prevent negative pressure leakage. The surface of the conveyor belt 33 is provided with a plurality of adsorption holes 331 for adsorbing the core board. These adsorption holes 331 are precisely positioned relative to the air holes 321 on the top wall of the negative pressure box 32. When the conveyor belt 33 moves above the negative pressure box, the adsorption holes 331 can connect the core board with the internal negative pressure environment of the negative pressure box 32 through the air holes 321, thereby firmly adsorbing the core board onto the surface of the conveyor belt 33 and preventing displacement or vibration during the cutting process. The drive assembly is mounted on the frame 31 and is connected to the conveyor belt 33 for transmission. This drive assembly typically includes one or more servo motors with braking capabilities. The servo motors can receive external signals to drive the conveyor belt 33 to move precisely at a preset speed and direction. By precisely controlling the drive assembly, functions such as slow feeding, fast retraction, and precise positioning of the core plate can be achieved, thereby ensuring the continuity and accuracy of the cutting process.

[0074] The wood cutting machine of this embodiment utilizes the negative pressure adsorption effect formed by the adsorption holes 331, air holes 321, and negative pressure box 32 to uniformly and firmly adsorb the core board onto the entire contact surface of the conveyor belt 33. This effectively prevents the core board from shifting, vibrating, or warping during the cutting process, greatly ensuring cutting accuracy and surface quality. Simultaneously, negative pressure adsorption reduces the frequency of manual handling, fixing, and adjusting of the core board, lowering the risk of operators coming into contact with high-speed rotating cutting components, thereby improving the overall safety of the production line.

[0075] Furthermore, such as Figure 1-5As shown, the system also includes two mounting brackets 34, which are fixedly mounted on the frame 31 and positioned opposite each other at both ends of the negative pressure box 32. Two driven rollers 35, arranged vertically opposite each other, are mounted on one mounting bracket, while two driving rollers 36, arranged vertically opposite each other, are mounted on the other mounting bracket. The conveyor belt 33 is wound around the two driven rollers 35 and the two driving rollers 36 and is tensioned. The drive assembly includes a conveyor belt servo motor 38. Sprockets 37 are correspondingly provided at the ends of the two driving rollers 36 and at the output end of the conveyor belt servo motor 38. The three sprockets 37 respectively mesh with a transmission chain 39. The conveyor belt servo motor 38 drives the two driving rollers 36 to rotate via the transmission chain 39, thereby moving the conveyor belt 33.

[0076] The conveyor belt servo motor 38 provides high-precision speed, position, and torque control, ensuring that the movement speed of the conveyor belt 33 can be precisely adjusted according to cutting requirements and that the core plate can be accurately positioned in the cutting area, which is crucial for high-precision cutting. The combination of the sprocket 37 and the drive chain 39 is less prone to slippage during operation and can transmit greater torque.

[0077] The wood cutting machine of this embodiment also includes a first adjustable bracket 311 mounted on the frame 31 and a first pressure roller 312 rotatably mounted on the first adjustable bracket 311. The first adjustable bracket 311 is a multi-segment articulated adjustable arm (multi-link cantilever bracket), including multiple connecting rods (made of metal or high-strength plastic, in rod or tubular shape) that are movably connected by joints with built-in locking functions (such as knobs or buckles). At the same time, each connecting rod can be locked and fixed to each other by joints, used to adjust the height, angle and position of the first pressure roller 312 in three-dimensional space. The first pressure roller 312 is located above the conveyor belt 33 and can press firmly on the core board. Through continuous downward pressure, the core board is firmly pressed onto the conveyor belt 33, ensuring that it remains flat and fixed throughout the cutting path. The firmly pressed core board will not suddenly rise or rebound during the cutting process, which is especially important for high-speed cutting operations and greatly reduces the risk of the board flying out and injuring people.

[0078] The wood cutting machine of this embodiment, further, such as Figure 8-11 As shown, the first guide structure includes: a first guide rail 111 and a first slider 121; the first guide rail 111 is vertically arranged on the bracket 11; the first slider 121 is arranged at one end of the crossbeam 12 and can be slidably connected with the first guide rail 111.

[0079] In this embodiment, the first guide rail 111 and the first slider 121 cooperate to provide stable guidance, ensuring that the crossbeam 12 will not deflect or wobble during its up-and-down movement. This improves the positioning accuracy of the cutting device and ensures the reliability of the cutting process.

[0080] In this embodiment of the wood cutting machine, the first driving mechanism further includes a first ball screw 151, a first ball nut 152, and a first motor 153; the first ball screw 151 is rotatably mounted on the bracket 11 via a first rotating connection structure; the first ball nut 152 is fixedly mounted on one end of the crossbeam 12 and can be screwed into the first ball screw 151; the first motor 153 is fixedly mounted on the bracket 11, and its output end is connected to the first ball screw 151 to drive the first ball screw 151 to rotate in both directions.

[0081] In this embodiment, the first motor 153 can be a servo motor with a braking function. The first ball screw 151, the first ball nut 152, and the first motor 153 provide high-precision transmission control to ensure the vertical movement accuracy of the crossbeam 12. The ball screw drive has the characteristics of high precision and high transmission efficiency, which can realize the precise vertical movement and positioning of the crossbeam 12. The ball screw drive can withstand a large axial load, ensuring the stable operation of the crossbeam. The output end of the first motor 153 and the first ball screw 151 can be connected by a coupling 102.

[0082] Furthermore, such as Figure 10-13As shown, the first rotating connection structure includes a first mounting shaft 154, a first bearing housing 161, a first bearing 162, a first bushing 163, a second bushing 164, a first end cap 165, and a first set screw locking nut 166. The first mounting shaft 154 is formed at both ends of the first ball screw 151, and the outer diameter of the first mounting shaft 154 is smaller than the outer diameter of the first ball screw 151 to form a first stepped surface 1541. The free end of the first mounting shaft 154 is formed with an external thread. There are two first bearing housings 161, which are respectively sleeved on the two first mounting shafts. The first bearing seat 161 has a first stepped hole 1611 inside, and a second stepped surface 1612 is formed between the large diameter portion and the small diameter portion of the first stepped hole 1611; there are two sets of first bearings 162, which are respectively installed in the large diameter portions of the two first stepped holes 1611 and sleeved on the first mounting shaft 154, and the outer ring end face of one side of the first bearing 162 abuts against the second stepped surface 1612; there are two first bushings 163, which are respectively installed in the two first stepped holes 1611. The first bushing 163 is installed within the smaller diameter portion of the first stepped hole 1611 and fitted onto the first mounting shaft 154. One end face of the first bushing 163 abuts against the inner ring end face of one side of the first bearing 162, and the other end face abuts against the first stepped surface 1541. Two second bushings 164 are installed within the larger diameter portions of the two first stepped holes 1611 and fitted onto the first mounting shaft 154. One end face of the second bushing 164 abuts against the inner ring end face of the other side of the first bearing 162. Two first end caps 165 are respectively installed over the first stepped holes 1611. The first end cap 165 is fixedly connected to the first bearing seat 161 at the opening of the large diameter portion and is sleeved on the first mounting shaft 154. One end of the first end cap 165 extends into the first stepped hole 1611 and abuts against the outer ring end face on the other side of the first bearing 162. The first set screw locking nut 166 can be screwed into the first mounting shaft 154 and locked to the first mounting shaft 154 by the first set screw 1661. The inner end face of the first set screw locking nut 166 abuts against the other end face of the second bushing 164.

[0083] In this embodiment, by installing the first bearing 162 on the large-diameter portion of the stepped hole and fixing it with the first end cap 165, the axial and radial displacement of the first bearing 162 can be effectively limited, ensuring that it maintains a precise position along the axial direction during operation, which helps to improve the stability and repeatability of the transmission. The structural design of the first end cap 165 and the first set screw locking nut 166 makes the installation, removal, and adjustment of the bearing more convenient, facilitating daily maintenance and precision calibration. The first bushing 163 and the second bushing 164 cooperate with the first set screw locking nut 166 for tightening, effectively limiting the axial movement of the first ball screw 151, thereby ensuring the continuity and precision of the transmission.

[0084] Furthermore, each set of first bearings 162 includes two angular contact bearings arranged side by side. Angular contact bearings can simultaneously withstand radial and axial loads, possessing high load-bearing capacity and rigidity, making them suitable for use under high-load and high-precision conditions. The side-by-side arrangement of the two angular contact bearings can distribute the load, reducing the stress on individual bearings and improving the overall load-bearing capacity. The two side-by-side angular contact bearings can further enhance the rigidity of the device, reduce shaft deflection, and improve positioning accuracy.

[0085] The wood cutting machine in this embodiment, such as Figure 8-11 As shown, the second guide structure further includes a second guide rail 123 and a second slider 131; the second guide rail 123 is horizontally disposed on the crossbeam 12; the second slider 131 is disposed at one end of the working arm 13 and can be slidably connected with the second guide rail 123.

[0086] In this embodiment, the second guide rail 123 and the second slider 131 ensure the stability of the working arm 13 during horizontal movement, reducing offset and vibration during the movement. This improves the positioning accuracy of the cutting device and ensures the reliability of the cutting process.

[0087] In this embodiment of the wood cutting machine, the second drive mechanism further includes a second ball screw 171, a second ball nut 172, and a second motor 173. The second ball screw 171 is rotatably mounted on the crossbeam 12 via a second rotating connection structure. The second ball nut 172 is fixedly mounted on one end of the working arm 13 and can be screwed into the second ball screw 171. The second motor 173 is fixedly mounted on the crossbeam 12, and its output end is connected to the second ball screw 171 to drive the second ball screw 171 to rotate in both directions.

[0088] In this embodiment, the second motor 173 can be a servo motor with a braking function. The second ball screw 171, the second ball nut 172, and the second motor 173 provide high-precision transmission control, ensuring the horizontal movement accuracy of the working arm 13. The ball screw drive has the characteristics of high efficiency and low friction, reducing energy loss and improving the operating efficiency of the cutting device. The output end of the second motor 173 and the second ball screw 171 can be connected via a coupling 102.

[0089] The wood cutting machine of this embodiment, further, such as Figure 10-13 As shown, the second rotary connection structure is similar to the first rotary connection structure. The second rotary connection structure includes: a second mounting shaft 174, a second bearing housing 181, a second bearing 182, a third bushing 183, a fourth bushing 184, a second end cap 185, and a second set screw locking nut 186. The second mounting shaft 174 is disposed at both ends of the second ball screw 171. The outer diameter of the second mounting shaft 174 is smaller than the outer diameter of the second ball screw 171 to form a third stepped surface 1741. The free end of the second mounting shaft 174 is formed with an external thread. The second bearing housing 181 has two... Each bearing is fitted onto one of the two second mounting shafts 174 and fixedly connected to the crossbeam 12; the second bearing seat 181 has a second stepped hole 1811 inside, and a fourth stepped surface 1812 is formed between the large diameter portion and the small diameter portion of the second stepped hole 1811; there are two sets of second bearings 182, which are respectively installed in the large diameter portion of the two second stepped holes 1811 and fitted onto the second mounting shafts 174, with the outer ring end face of one side of the second bearing 182 abutting against the fourth stepped surface 1812; there are two third bushings 183, which are respectively installed on the two mounting shafts 174. The third bushing 183 is fitted into the small-diameter portion of the second stepped hole 1811 and onto the second mounting shaft 174. One end face of the third bushing 183 abuts against the inner ring end face of one side of the second bearing 182, and the other end face abuts against the third stepped surface 1741. Two fourth bushings 184 are respectively installed in the large-diameter portions of the two second stepped holes 1811 and fitted onto the second mounting shaft 174. One end face of the fourth bushing 184 abuts against the inner ring end face of the other side of the second bearing 182. Two second end caps 185 are respectively installed on the second stepped surface 1741. The second end cap 185 is fixedly connected to the second bearing seat 181 at the opening of the large diameter portion of the trapezoidal hole 1811 and is fitted onto the second mounting shaft 174. One end of the second end cap 185 extends into the interior of the second stepped hole 1811 and abuts against the outer ring end face on the other side of the second bearing 182. The second set screw locking nut 186 can be screwed into the second mounting shaft 174 and locked to the second mounting shaft 174 by the second set screw 1861. The inner end face of the second set screw locking nut 186 abuts against the other end face of the fourth bushing 184.

[0090] In this embodiment, by installing the second bearing 182 on the large-diameter portion of the stepped bore and fixing it with the second end cap 185, the axial and radial displacement of the second bearing 182 can be effectively limited, ensuring that it maintains a precise position along the axial direction during operation, which helps to improve the stability and repeatability of the transmission. The structural design of the second end cap 185 and the second set screw locking nut 186 makes the installation, removal, and adjustment of the bearing more convenient, facilitating daily maintenance and precision calibration. The third bushing 183 and the fourth bushing 184 cooperate with the second set screw locking nut 186 for tightening, effectively limiting the axial movement of the second ball screw 171, thereby ensuring the continuity and precision of the transmission.

[0091] Furthermore, each set of second bearings 182 includes two angular contact bearings arranged side by side. Angular contact bearings can simultaneously withstand radial and axial loads, possessing high load-bearing capacity and rigidity, making them suitable for use under high-load and high-precision conditions. The side-by-side arrangement of two angular contact bearings can distribute the load, reducing the stress on individual bearings and improving the overall load-bearing capacity. The two side-by-side angular contact bearings can further enhance the rigidity of the device, reduce shaft deflection, and improve positioning accuracy.

[0092] The outer rings of the first bushing 163, the second bushing 164, the third bushing 183, and the fourth bushing 184 are also provided with oil seals 103.

[0093] The wood cutting machine of this embodiment, further, such as Figure 8-10 As shown, the cutting component is a circular saw 141, and the cutting mechanism includes a saw blade motor 142 and the circular saw 141 installed at the output end of the saw blade motor 142.

[0094] The wood cutting machine of this embodiment, further, such as Figure 14 As shown, the angle adjustment structure includes a reducer 133 and a third motor 134; the reducer 133 is fixedly installed at the other end of the working arm 13, and the housing of the saw blade motor 142 is fixedly connected to the output end of the reducer 133; the third motor 134 is fixedly installed on the reducer 133, and the output end of the third motor 134 is connected to the input end of the reducer 133 for driving the reducer 133 to drive the saw blade motor 142 to swing within a preset angle range.

[0095] In this embodiment, the third motor 134 can be a servo motor with a braking function. The reducer 133 can be a planetary gear reducer, harmonic reducer, RV reducer, etc. The reducer 133 and the third motor 134 work together to enable the cutting mechanism 14 to swing flexibly within a preset angle range, adapting to the cutting needs of complex geometries. This improves the flexibility and adaptability of the cutting device and meets the requirements of different cutting angles.

[0096] In this embodiment of the wood cutting machine, the reducer 133 is further described as an RV reducer.

[0097] Furthermore, the first guide rail 111 and the second guide rail 123 are respectively provided with bellows covers 101, which can prevent the dust generated during the cutting of the core board from falling onto the first guide rail 111 and the second guide rail 123 and affecting the transmission accuracy.

[0098] The wood cutting machine of this embodiment, further, such as Figure 1-7 As shown, it also includes a wood chip cleaning device, which includes a crusher, an air blowing assembly, and a dust collection assembly. The crusher includes a housing 21 and a set of crushing blades 22 disposed inside the housing 21. The collection port 211 at the top of the housing 21 is closely fitted to the edge of the conveyor belt 33 and adapted to the cutting area of ​​the conveyor belt 33, for guiding the cut waste into the housing 21. The air blowing assembly is mounted above or to the side of the cutting area of ​​the conveyor belt 33 through a first support structure and can be connected to an air source through an air supply pipe 01. The air blowing assembly has an air blowing port 231 facing the cutting area, and the airflow direction of the air blowing port 231 is directed towards the collection port 211, for blowing the waste into the housing 21. The dust collection assembly is mounted above or to the side of the cutting area of ​​the conveyor belt 33 through a second support structure and can be connected to a dust collection device through a first dust collection pipe 02. The dust collection assembly has a first dust suction port 261 facing the cutting area, for absorbing the dust generated during the cutting process.

[0099] In this embodiment, the crusher can be selected from or modified from existing mature products. The opening plane of the collection port 211 is flush with or transitionally connected to the platform of the conveyor belt 33. The collection port 211 can be a rectangular opening, slightly larger than the cutting area, to ensure that the waste generated from cutting can fall into it. The bottom of the box 21 has a certain depth for storing the crushed waste; alternatively, the bottom of the box 21 can also be connected to a collection device, such as a hopper or a removable drawer, for easy cleaning of the crushed wood chips. The air source refers to equipment that provides compressed air or high-pressure gas, such as an air compressor or a blower. The airflow is delivered to the air outlet 231 through the air supply pipe 01 to blow the waste. The specific structure of the air supply pipe 01 and the air source can be found in related technologies and will not be described in detail here. To improve the space utilization of the equipment, the blower and other components can be installed in the frame 31 located below the conveyor belt 33, thereby saving space. Dust collection equipment (not shown in the figure) refers to a woodworking central dust collector or industrial dust collector equipped with negative pressure in a woodworking workshop. The first dust collection pipe 02 and the dust collection equipment can be found in relevant technologies, and will not be described in detail here.

[0100] In this embodiment of the wood cutting machine, when in use, the air blowing assembly and the dust suction assembly are activated, causing the air blowing port 231 to generate airflow directed towards the collection port 211, and the first dust suction port 261 to start suction. The crusher is in standby mode. The cutting mechanism 14 cuts the core board. During the cutting process, the larger pieces of scrap material generated fall directly into the collection port 211, which is attached to the edge of the conveyor belt 33, by gravity and enter the crusher housing 21. At the same time, the airflow generated by the air blowing port 231 of the air blowing assembly blows the lighter and smaller wood chips generated during cutting, as well as the larger pieces of scrap material that fail to fall into the collection port 211 by gravity, toward the collection port 211, further ensuring that the waste material enters the crusher. Meanwhile, the first dust suction port 261 of the dust suction assembly absorbs the fine dust generated during the cutting process and quickly removes them from the cutting operation area to prevent them from spreading into the air. The waste material entering the housing 21 is crushed by the crushing blade assembly 22, which crushes it into smaller and more uniform particles or fibers for easier subsequent processing.

[0101] In this embodiment, the wood cutting machine uses an air blowing component to blow the waste generated during cutting into the housing 21, while a dust collection component absorbs the dust generated during the cutting process. This effectively reduces the scattering of waste and dust, improves waste collection efficiency and the quality of the working environment, reduces wear and corrosion of the cutting mechanism 14 and other components caused by dust, extends the service life of the equipment, and lowers maintenance costs. The crushing blade assembly 22 can pulverize large pieces of waste, significantly reducing the volume of waste, facilitating storage and transportation, and laying the foundation for the energy utilization (such as making biomass fuel) or reuse (such as making particleboard and MDF raw materials) of the waste.

[0102] The wood cutting machine in this embodiment, such as Figure 15As shown, the extraction assembly and air source can be the same device, such as fan 05. Fan 05 can be selected from mature products in the existing technology as needed, and the number of fans can be increased or decreased as required. The air inlet of fan 05 is connected to negative pressure pipe 06 to extract air from inside negative pressure box 32, creating a negative pressure environment below atmospheric pressure; at the same time, the air outlet of fan 05 is connected to air supply pipe 01 to deliver airflow to air blowing port 231 to blow the waste material. Fan 05 can be installed in frame 31 located below conveyor belt 33.

[0103] In this embodiment, the functions of the air extraction component and the air source are combined into one, avoiding the extra space required to install two separate air extraction and air delivery devices, making the entire wood cutting machine more compact. While generating negative pressure suction, the high-pressure airflow (usually waste gas) discharged by the blower 05 is effectively utilized for waste material blowing, achieving secondary energy utilization and avoiding the additional energy consumption of a separate compressed air system. Since the same blower 05 can provide both suction and blowing functions simultaneously, better synchronization and coordinated control can be achieved, contributing to the smoothness and efficiency of the cutting process. For example, when negative pressure suction is activated, the air blowing cleaning function is also activated simultaneously, ensuring continuous cleanliness of the working area.

[0104] The wood cutting machine of this embodiment is characterized in that, as Figure 2-7 As shown, the dust collection assembly includes a dust collection hood 26, a first dust collection port 261 and a dust discharge port 262 communicating with the first dust collection port 261, and the dust discharge port 262 can be connected to a dust collection device through a first dust collection pipe 02.

[0105] In this embodiment, the shape and size of the dust collection hood 26 can be designed according to the type of cutting mechanism 14 and the characteristics of the cutting operation area, for example, it can be flared, flat box-shaped, or arc-shaped. The dust collection hood 26 is connected to the dust collection equipment through the first dust collection pipe 02 to ensure sufficient negative pressure suction. The first dust collection port 261 can be located close to the cutting point to maximize the capture of dust generated during the cutting process. The dust discharge port 262 can be provided with a connector for connecting to the first dust collection pipe 02. The connector and the first dust collection pipe 02 can be plugged in and fixed by a clamp.

[0106] The wood cutting machine in this embodiment, such as Figure 5-7 As shown, the cutting mechanism 14 includes a saw blade motor 142 and a circular saw 141 installed at the output end of the saw blade motor 142; the second support structure includes a fixed beam 27, which is fixedly connected to the housing of the saw blade motor 142, and the dust suction hood 26 is fixedly installed on the fixed beam 27; preferably, the first dust suction port 261 is located near the edge of the circular saw 141.

[0107] In this embodiment, the fixed beam 27 is made of high-strength materials (such as steel or aluminum alloy) and has sufficient rigidity. The fixed beam 27 is firmly connected to the housing of the saw blade motor 142 by bolts, welding, or clamps, allowing the fixed beam 27 to move synchronously with the cutting mechanism 14. The dust suction hood 26 is fixedly installed on the fixed beam 27, ensuring that its first dust suction port 261 is always near the cutting point of the circular saw 141, precisely linked with the cutting action. The linkage design between the dust suction hood 26 and the cutting mechanism 14 ensures that no matter where the cutting mechanism 14 moves to for cutting, the first dust suction port 261 always follows the cutting point, achieving "where it cuts, it sucks up dust," greatly improving the dust capture rate. Utilizing the structure of the cutting mechanism 14 itself for support reduces additional independent support components, making the entire device structure more compact and saving space.

[0108] The wood cutting machine in this embodiment, such as Figure 5-8 As shown, a baffle 271 is also installed on the fixed beam 27. The baffle 271 is located in the downstream area of ​​the cutting path and extends for a certain length to block the waste on the side away from the collection port 211, so as to prevent the waste from being thrown to the side away from the collection port 211. A side baffle 272 is also provided at the end of the baffle 271 to assist the waste in entering the collection port 211.

[0109] The wood cutting machine in this embodiment, such as Figure 8 As shown, a second adjustable bracket 273 and a second pressure roller 274 rotatably mounted on the fixed beam 27 are also installed on the second adjustable bracket 273. The second adjustable bracket 273 is a multi-segment articulated adjustment arm (multi-link cantilever bracket), including multiple connecting rods (metal or high-strength plastic, rod-shaped or tubular) that are movably connected by joints with built-in locking functions (such as knobs or buckles). Each connecting rod can be locked together by joints to adjust the height, angle, and position of the second pressure roller 273 in three-dimensional space. The second pressure roller 274 is used to press against the waste material to be separated at the end of the core board cutting. Specifically, the main function of the second pressure roller 274 is to apply precise and continuous downward (or perpendicular to the cutting direction) pressure to the waste material to be cut off at the end of the core board cutting, before the waste material (outgoing material) separates from the main core board. In the final stage of the circular saw 141 cutting, when the saw blade approaches the end of the cutting line, the connection strength between the cut waste material (outgoing material) and the main core board weakens sharply. At this point, the second pressure roller 274 effectively clamps the material mechanically, ensuring that this waste material is ultimately cut off by the circular saw 141, rather than being torn off by the high-speed rotating circular saw 141. This maintains the neatness of the cut edge and avoids the production of defective products. It completely avoids common defects at the cutting end of the circular saw 141, such as material tearing and edge chipping.

[0110] The wood cutting machine of this embodiment, further, such as Figure 1-5 As shown, it also includes a barrier assembly, which includes a front baffle 251 and a side baffle 252; the front baffle 251 is vertically disposed on the edge of the collection port 211 away from the conveyor belt 33, and the upper edge of the front baffle 251 is higher than the upper edge of the core plate to be cut; there are two side baffles 252, which are vertically disposed opposite each other on the two sides of the collection port 211, and the upper edge of the side baffle 252 is higher than the upper edge of the core plate to be cut.

[0111] In this embodiment, the front baffle 251 and the side baffles 252 can be made of metal plates, high-strength plastic plates, etc., and are arranged vertically. The front baffle 251 and the two side baffles 252 together form a "U"-shaped or three-sided enclosed area above the collection port 211. The enclosure assembly can effectively limit the dispersion of cutting waste outside the collection port 211, guiding it to enter the collection port 211 and the crusher more concentratedly. At the same time, the front baffle 251 and the side baffles 252 help to form a relatively enclosed space, making the airflow of the blowing assembly more concentrated in it, enhancing the efficiency of blowing waste into the collection port 211, and also limiting the diffusion of dust in the cutting operation area to a certain extent, helping the dust collection assembly to capture dust more effectively.

[0112] In this embodiment of the wood cutting machine, the positive baffle 251 is further provided with a second dust suction port 2511, which can be connected to a dust collection device through a second dust collection pipe 03; the second dust suction port 2511 faces the cutting operation area and is used to absorb the dust generated during the cutting process.

[0113] In this embodiment, the second dust suction port 2511 can be circular, rectangular, or slit-shaped. The second dust suction port 2511 is connected to an external dust collection device via the second dust collection pipe 03. A connector can be provided on the side of the baffle 251 away from the collection port 211 for connecting to the second dust collection pipe 03. The connector and the second dust collection pipe 03 can be plugged in and fixed with clamps. This dust collection device can be the same device connected to the first dust collection pipe 02, or it can be an independent auxiliary dust collection device, depending on the amount of dust generated and the cleaning requirements. The second dust suction port 2511 points towards the cutting operation area, further capturing and absorbing the dust generated during the cutting process, achieving more comprehensive dust coverage of the cutting operation area, significantly improving the dust removal rate of the entire device, and further improving the working environment.

[0114] The wood cutting machine of this embodiment, further, such as Figure 2-7 As shown, the bottom of the housing 21 is provided with a conveying port 212, which can be connected to the dust collection equipment through the third dust collection pipe 04, and is used to guide the waste material after being crushed by the crushing blade group 22 into the dust collection equipment.

[0115] In this embodiment, the conveying port 212 can be located at the bottom of the crusher housing 21, serving as the outlet for the crushed waste. Its size and shape are designed according to the crushed particle size of the waste and the subsequent conveying method; for example, it can be a circular or rectangular opening. The conveying port 212 is connected to a dust collection device via a third dust collection pipe 04. This dust collection device can be the same device connected to the first dust collection pipe 02, or it can be an independent auxiliary dust collection device with negative pressure. The crushed waste enters the dust collection device through negative pressure suction. The housing 21 can be equipped with a connector for connecting to the third dust collection pipe 04. The connector and the third dust collection pipe 04 can be plugged in and fixed with clamps. The waste, after being crushed by the crushing blade assembly 22, directly enters the dust collection device through the conveying port 212 and the third dust collection pipe 04, achieving automated and continuous waste transfer, reducing secondary dust generation that may occur during the transfer of crushed waste, and maintaining a clean workshop environment.

[0116] In this embodiment of the wood cutting machine, the air blowing assembly includes an air guide hood 23 and an air guide plate 24; the air guide hood 23 is provided with the air blowing port 231 and an air inlet 232 communicating with the air blowing port 231; the air inlet 232 can be connected to an air source through an air supply pipe 01; the air guide plate 24, at least one piece, is installed inside the air guide hood 23 and located at the position of the air blowing port 231.

[0117] In this embodiment, an airflow channel is formed inside the air guide shroud 23. The geometry of the air guide shroud 23 (such as fan-shaped, duckbill-shaped, or elongated) is designed according to the size and shape of the required blowing area, aiming to optimize the distribution and directionality of the airflow. The air guide plate 24 is used to adjust the direction, diffusion angle, or speed distribution of the airflow. By adjusting the angle and number of air guide plates, the blown airflow can be more accurately directed towards the collection port 211 and cover the required blowing area, thereby more effectively pushing the waste. The air inlet 232 may be provided with a connector for connecting to the air supply duct 01. The connector and the air supply duct 01 can be plugged in and fixed by clamps. The combined use of the air guide shroud 23 and the air guide plate 24 ensures that the airflow is concentrated on the target waste, reducing airflow waste and ineffective diffusion.

[0118] The wood cutting machine of this embodiment further includes a machine cover 28, which covers the outside of the cutting device to form an installation space 281; the collection port 211 and the air blowing assembly are both located in the installation space 281, the conveyor belt 33 is at least partially located in the installation space 281, and a core board feed port 282 is formed between the bottom of the machine cover 28 and the conveyor belt 33; a plurality of pipe holes 283 are provided on the machine cover 28.

[0119] In this embodiment, the machine cover 28 is made of metal sheet or composite material and has functions such as sound insulation, dust prevention, and safety protection. The core components, such as the cutting mechanism 14, the collection port 211, and the air guide hood 23, or their main working areas, are all located within the installation space 281. The conveyor belt 33 is at least partially located within the installation space 281 and is used to carry the core board to be cut. A core board feed port 282 is designed between the bottom of the machine cover 28 and the upper surface of the conveyor belt 33 for feeding the core board into and out of the cutting area. This feed port 282 is typically designed to minimize dust spillage and may be equipped with brush strips or flexible baffles. Several pipe holes 283 are provided on the machine cover 28 for passing through the air supply duct 01, the first dust collection duct 02, the second dust collection duct 03, and the third dust collection duct 04, as well as other necessary cable conduits (such as power lines and control lines). The machine cover 28 forms a sealed space, greatly limiting the spillage of dust and waste generated during the cutting process, controlling pollution diffusion at the source, and making the entire system more environmentally friendly. The cover 28 provides a physical barrier to prevent operators from directly contacting the high-speed rotating cutting mechanism, thus improving operational safety. The cover 28 also effectively reduces noise generated during the operation of the cutting equipment, improving the acoustic environment of the workshop.

[0120] In this embodiment of the wood cutting machine, the first support structure is the inner wall of the machine cover 28, and the air guide shroud 23 is fixedly installed on the inner wall of the machine cover 28.

[0121] In this embodiment, the air guide shroud 23 is directly fixed to the inner wall of the housing 28 by bolts, welding, or adhesive bonding, and the air inlet 232 can be directly covered on the corresponding pipe hole 283. The air guide shroud 23 is directly fixed to the inner wall of the housing, and its position is precise and stable, and it will not easily shift due to external vibration.

[0122] The wood cutting machine of this embodiment, further, such as Figure 1-7 As shown, the box 21 slopes downward and converges around the inner wall of the collection port 211, forming a funnel-shaped guide area that is larger at the top and smaller at the bottom.

[0123] In this embodiment, the funnel-shaped guide zone can be designed as a smooth cone, pyramid, or stepped constriction to ensure that waste can slide down smoothly. Utilizing gravity, the funnel-shaped guide zone effectively guides various types of waste entering from the collection port 211 smoothly towards the crushing blade assembly 22, preventing waste from accumulating or getting stuck at the box inlet. The inclined inner wall design reduces friction and resistance of waste in the box inlet area, thereby reducing the risk of blockage and ensuring the continuous and stable operation of the crusher.

[0124] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this innovative technical solution.

Claims

1. A wood cutting machine, characterized in that, It includes a negative pressure conveying device for adsorbing and moving the core board, and a cutting device for cutting the core board located on the negative pressure conveying device; the cutting device includes: Support (11); A horizontal beam (12) is set horizontally, and one end of it is mounted on the bracket (11) through a first guide structure that allows it to move up and down. The first driving mechanism is disposed between the bracket (11) and the crossbeam (12) for receiving external signals to drive the crossbeam (12) to move up and down; The working arm (13) is mounted on the crossbeam (12) with one end movable left and right along the axis of the crossbeam (12) via a second guide structure; The second drive mechanism is disposed between the crossbeam (12) and the working arm (13) for receiving external signals to drive the working arm (13) to move horizontally; The cutting mechanism (14) includes a cutting component; the cutting mechanism is rotatably mounted on the other end of the working arm (13) via an angle adjustment structure, the angle adjustment structure being used to receive external signals to drive the cutting mechanism to swing within a preset angle range, thereby changing the angle between the cutting component and the core plate to be cut.

2. The wood cutting machine according to claim 1, characterized in that, The negative pressure conveying device includes: Rack (31); The negative pressure box (32) is fixedly installed on the frame (31), and the top wall is provided with multiple air holes (321); the inside of the negative pressure box (32) can be connected to the air extraction assembly through the negative pressure pipe (06); A conveyor belt (33) is arranged around the circumference of the negative pressure box (32) and is in contact with the top wall of the negative pressure box (32); the conveyor belt (33) is provided with a plurality of adsorption holes (331) for adsorbing the core plate, and the adsorption holes (331) are connected to the interior of the negative pressure box (32) through the air holes (321). The drive assembly is mounted on the frame (31) and is connected to the conveyor belt (33) in a driving connection.

3. The wood cutting machine according to claim 1, characterized in that, The first guide structure includes: The first guide rail (111) is vertically mounted on the bracket (11); The first slider (121) is disposed at one end of the crossbeam (12) and can be slidably connected to the first guide rail (111).

4. The wood cutting machine according to claim 3, characterized in that, The first driving mechanism includes: The first ball screw (151) is rotatably mounted on the bracket (11) via a first rotating connection structure; The first ball nut (152) is fixedly installed at one end of the crossbeam (12) and can be screwed into the first ball screw (151); The first motor (153) is fixedly mounted on the bracket (11), and its output end is connected to the first ball screw (151) to drive the first ball screw (151) to rotate in both directions.

5. The wood cutting machine according to claim 1, characterized in that, The second guide structure includes: The second guide rail (123) is horizontally set on the crossbeam (12); The second slider (131) is disposed at one end of the working arm (13) and can be slidably connected to the second guide rail (123).

6. The wood cutting machine according to claim 5, characterized in that, The second drive mechanism includes: The second ball screw (171) is rotatably mounted on the crossbeam (12) via a second rotating connection structure; The second ball nut (172) is fixedly installed at one end of the working arm (13) and can be screwed into the second ball screw (171); The second motor (173) is fixedly installed on the crossbeam (12), and its output end is connected to the second ball screw (171) to drive the second ball screw (171) to rotate in both directions.

7. The wood cutting machine according to claim 1, characterized in that, The cutting component is a circular saw (141), and the cutting mechanism includes a saw blade motor (142) and the circular saw (141) installed at the output end of the saw blade motor (142); the angle adjustment structure includes: A speed reducer (133) is fixedly installed at the other end of the working arm (13), and the housing of the saw blade motor (142) is fixedly connected to the output end of the speed reducer (133); The third motor (134) is fixedly installed on the reducer (133), and the output end of the third motor (134) is connected to the input end of the reducer (133) for driving the reducer (133) to drive the saw blade motor (142) to swing within a preset angle range.

8. The wood cutting machine according to claim 2, characterized in that, It also includes a sawdust cleaning device, which comprises: The crusher includes a housing (21) and a set of crushing blades (22) disposed inside the housing (21); the collection port (211) at the top of the housing (21) is closely fitted with the edge of the conveyor belt (33) and adapted to the cutting operation area of ​​the conveyor belt (33) to guide the cut waste into the housing (21); The air blowing assembly is mounted above or to the side of the cutting operation area of ​​the conveyor belt (33) via a first support structure and can be connected to an air source via an air supply pipe (01); the air blowing assembly has an air blowing port (231) facing the cutting operation area, and the airflow direction of the air blowing port (231) is directed towards the collection port (211) for blowing waste into the box (21); The dust collection assembly is mounted above or to the side of the cutting operation area of ​​the conveyor belt (33) via a second support structure and can be connected to a dust collection device via a first dust collection pipe (02); the dust collection assembly has a first dust collection port (261) facing the cutting operation area for absorbing dust generated during the cutting process.

9. The wood cutting machine according to claim 8, characterized in that, The bottom of the box (21) is provided with a conveying port (212), which can be connected to the dust collection equipment through the third dust collection pipe (04) to guide the waste material after being crushed by the crushing blade group (22) into the dust collection equipment.

10. The wood cutting machine according to claim 9, characterized in that, Also includes: A cover (28) is provided outside the cutting device to form an installation space (281); the collection port (211) and the air blowing assembly are both located in the installation space (281), the conveyor belt (33) is at least partially located in the installation space (281), and a core plate feed port (282) is formed between the bottom of the cover (28) and the conveyor belt (33); a plurality of pipe holes (283) are provided on the cover (28).

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