Wood comb tooth machine anti-blocking dust collecting cover

Abstract

The utility model provides a kind of wood comb machine anti-blocking dust collecting cover, it includes left frame body and right frame body that are left and right buckling and cover in the periphery of cutter group, left frame body and right frame body form the dust collecting area of "n" shape with front end opening, the cutter group is installed in dust collecting area, the side of left frame body towards feed end is extended and set to avoid empty area with outward bulging, suction pipe is installed outside left frame body, and it is communicated with avoid empty area.The beneficial effects of the utility model are: in the structure, the side of left frame body towards feed end is extended and set to avoid empty area with outward bulging.This innovative design provides sufficient empty space in extreme situation, that is, when wood is accidentally pulled into the narrow space between dust collecting area and cutter group during cutting process due to the tearing effect of cutter.This makes the pulled wood not be immediately completely stuck between the inner wall of dust collecting cover and high-speed rotating cutter.

Description

Technical Field

[0001] This utility model relates to the field of woodworking machinery technology, specifically a dust collection cover for preventing clogging in wood combing machines. Background Technology

[0002] A wood combing machine is a commonly used piece of equipment in the deep processing of wood. Its main function is to process the ends of multiple wood strips of varying lengths. In a wood combing machine, the ends of the wood strips to be processed are usually pre-aligned before being fed into the combing cutter set for high-speed cutting. This process creates matching tooth structures on the end faces of the wood, preparing it for subsequent joining processes and achieving the extension and efficient utilization of the wood's length.

[0003] However, existing wood combing machines have some problems that urgently need to be solved in actual operation. During the cutting process, because the combing blade assembly usually contains multiple blades, they cut the same piece of wood at the same time. This simultaneous cutting by multiple blades causes the blades to exert a significant tearing force on the wood along the direction of blade rotation. To prevent the wood from shifting during the cutting process, existing combing machines are usually equipped with clamping mechanisms to hold the wood in place.

[0004] However, setting the pressure of the clamping mechanism is a technical challenge. On the one hand, the timber to be processed may vary in length, resulting in inconsistent clamping contact surfaces. On the other hand, if the pressure applied by the clamping mechanism is too high, the timber may deform due to uneven stress, affecting the cutting accuracy of the teeth and the quality of subsequent tooth joints. Conversely, if the pressure applied by the clamping mechanism is too low, or cannot effectively resist the tearing force generated by the cutting tool, the timber can easily be forcibly pulled into the narrow space between the cutting tool and the dust collection hood during the cutting process. Once the timber is pulled into this space and jammed, the instantaneous cutting load of the comb-tooth cutting tool will increase sharply. This can lead to unstable equipment operation and increased energy consumption, or even cause the cutting tool to jam, or even damage the cutting tool or other parts of the machine, seriously affecting production efficiency and equipment lifespan.

[0005] Furthermore, when timber gets stuck between the cutter and the dust hood, causing the machine to stop, users face great difficulties in troubleshooting and clearing the stuck timber because this area is usually hidden and narrow. This is not only time-consuming and labor-intensive, but also poses certain safety hazards, further reducing the availability and ease of maintenance of the equipment. Therefore, it is necessary to make further improvements. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a dust collection cover for a wood combing machine that effectively prevents wood from being pulled and stuck between the dust collection cover and the cutter during the cutting process of the combing machine, and facilitates later maintenance and cleaning.

[0007] The purpose of this utility model is achieved through the following method: a dust collection cover for a wood combing machine, which includes a left frame and a right frame that are interlocked and cover the periphery of the blade assembly. The left frame and the right frame together form an "n"-shaped dust collection area with an opening at the front end. The blade assembly is installed in the dust collection area. The left frame extends outward from the side facing the feed end to form a clearance area. The suction pipe is installed outside the left frame and is connected to the clearance area.

[0008] Furthermore: the aforementioned clearance zone extends outward from the material of the left frame body, and the cross-section of the clearance zone is trapezoidal.

[0009] Furthermore, a spoiler is provided at the rear end of the air-avoidance area, extending vertically.

[0010] Furthermore, the top of the left and right frames are provided with maintenance areas, and a top cover is installed in the maintenance area.

[0011] Furthermore, a rear cover plate is provided at the rear end of the left frame, the rear cover plate covers the rear end of the left frame, and the fixing screws pass through the rear cover plate and are fixedly connected to the left frame as one piece.

[0012] Furthermore: a nut plate is provided on the inner surface of the left frame, and the fixing screw passes through the rear cover plate and the left frame and is connected to the nut plate.

[0013] Furthermore, the bottom of the left frame is provided with several lower connecting plates, which extend towards the right frame and cover the bottom of the right frame. Fixing screws pass through the lower connecting plates and are connected to the right frame as a whole.

[0014] Furthermore, a dustproof brush is installed on the front end of the left frame facing the feed end.

[0015] The beneficial effects of this utility model are: 1. Simple structure, low production cost, and improved market competitiveness.

[0016] 2. In this structure, a clearance zone is provided on the left frame side facing the feed end, extending outwards. This innovative design provides ample clearance in extreme cases, such as when the timber is accidentally pulled into the narrow space between the dust collection area and the blade assembly during cutting due to the tearing action of the blades. This prevents the pulled timber from being immediately and completely stuck between the inner wall of the dust collection hood and the high-speed rotating blades.

[0017] 3. The existence of this clearance zone effectively avoids the problem of equipment jamming, tool damage, or machine shutdown caused by excessive instantaneous cutting load on the tool, thereby significantly improving the operational stability and production efficiency of the wood combing machine.

[0018] 4. Due to the inclusion of a clearance zone, there is sufficient space to easily remove the timber. This contrasts sharply with existing technologies where timber is tightly jammed in narrow spaces, making it difficult to remove. This greatly facilitates troubleshooting and subsequent cleaning and maintenance, effectively shortening downtime and reducing maintenance costs and safety risks. Attached Figure Description

[0019] Figure 1 This is a rendering of the overall assembly of the present invention and the combing machine.

[0020] Figure 2 This is a diagram showing the effect of assembling the present invention with the blade assembly.

[0021] Figure 3 , 4 This is an exploded view of the structure of this utility model.

[0022] Figure 5 This is a schematic diagram of the structure of this utility model.

[0023] Figure 6 This is a cross-sectional view of the structure of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Left frame; 10. Rear cover plate; 11. Nut plate; 12. Lower connecting plate; 13. Dustproof brush; 2. Right frame; 3. Dust collection area; 4. Knife assembly; 5. Clearance area; 6. Suction pipe; 7. Baffle plate; 8. Maintenance area; 9. Top cover. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings. A dust collection cover for a wood combing machine includes a left frame 1 and a right frame 2 that are interlocked and cover the periphery of a blade assembly 4. The left frame 1 and the right frame 2 together form an "n"-shaped dust collection area 3 with an open front end. The blade assembly 4 is installed in the dust collection area 3. The left frame 1 extends outward from the side facing the feed end to form a clearance area 5. A suction pipe 6 is installed outside the left frame 1 and communicates with the clearance area 5.

[0026] In this embodiment, the dust collection hood is assembled from the left frame 1 and the right frame 2 by snapping them together. This structure allows the entire dust collection hood to easily cover the outside of the comb machine's blade assembly 4, forming an "n"-shaped closed or semi-closed dust collection area 3, which effectively collects the wood chips and dust generated by the blade assembly 4 cutting wood in this area.

[0027] The blade assembly 4 rotates at high speed within the dust collection zone 3 to cut the wood, generating chips that splatter within the zone. Crucially, a clearance zone 5 is provided on the left frame 1, extending outwards towards the feed end. During cutting, if the wood is accidentally pulled or pushed into the space between the dust collection hood and the blades due to the tearing action of the blades or other reasons, this clearance zone 5 provides additional buffering and containment space, preventing the wood from immediately becoming completely jammed between the blades and the tight walls of the dust collection hood.

[0028] In addition, the suction pipe 6 is installed outside the left frame 1 and is connected to the air-shedding area 5. It uses negative pressure to suck away wood chips, dust and any lightweight wood blocks that may be trapped in the dust collection area 3 and the air-shedding area 5, further reducing the risk of jamming and maintaining the cleanliness of the dust collection area.

[0029] The left frame 1 and right frame 2 are designed to interlock, making the installation and removal of the dust collection hood extremely convenient. When it is necessary to inspect, maintain, replace, or clean the inside of the dust collection hood for the blade assembly 4, the user can quickly separate the two frames, greatly improving the maintenance efficiency and convenience of the equipment and shortening downtime.

[0030] In addition, the design of the clearance zone 5 is one of the core advantages of this invention. It provides additional space for accidentally jammed timber, preventing the timber from being tightly stuck between the blade and the dust collection hood wall. This effectively prevents serious malfunctions such as excessive instantaneous cutting load on the blade, equipment jamming, and blade damage, ensuring the continuous and stable operation of the combing machine.

[0031] In one embodiment: the clearance zone 5 extends outward from the body material of the left frame 1, and the cross-section of the clearance zone 5 is trapezoidal.

[0032] In this embodiment, the clearance zone 5 is integrally formed outward from the body material of the left frame 1, and its cross-section is trapezoidal. This integral forming method simplifies the structure and enhances the overall integrity. The trapezoidal cross-section design usually means providing a narrower entrance near the feed end, in the direction of wood entry, and then gradually widening outward to form a space that is conducive to accommodating and guiding timber or debris.

[0033] Among them, the trapezoidal cross section can make more effective use of limited space, providing increasing buffer space for stuck timber, and under the action of suction pipe 6, it guides airflow and debris, making them easier to be sucked away, further improving the anti-clogging and dust collection effect.

[0034] In one embodiment, a baffle 7 is vertically extended at the rear end of the clearance zone 5. When the cutter rotates at high speed, it generates strong airflow and splashing wood chips. The baffle 7 changes or guides the direction of these airflows, preventing wood chips or small pieces from forming vortices and accumulating within the clearance zone 5, or guiding them into the suction range of the suction pipe 6. Simultaneously, it can also, to some extent, limit the movement of wood that accidentally enters the clearance zone 5 further, preventing it from causing more severe interference with the cutter.

[0035] In one embodiment: an inspection area 8 is provided on the top of the left frame 1 and the right frame 2, and a top cover 9 is installed in the inspection area 8.

[0036] In this embodiment, an inspection area 8 is reserved at the top of the left frame 1 and the right frame 2, and is sealed by a removable top cover 9. When a quick inspection or simple cleaning of the inside of the dust collection hood, especially the area of ​​the blade assembly 4, is required, it is not necessary to completely disassemble the left and right frames; simply opening the top cover 9 is sufficient for operation.

[0037] In one embodiment: a rear cover plate 10 is provided at the rear end of the left frame 1, the rear cover plate 10 covers the rear end of the left frame 1, and fixing screws pass through the rear cover plate 10 and are fixedly connected to the left frame 1 as one unit.

[0038] In this embodiment, the rear cover plate 10 is used to connect to the rear end of the left frame 1 and is tightly connected to the left frame 1 by fixing screws, together forming a complete load-bearing structure for the dust collection hood. This ensures the strength of the dust collection area 3. At the same time, this connection method also allows the rear cover plate to be disassembled when necessary, facilitating maintenance of the dust collection hood or blade assembly from the rear.

[0039] In one embodiment: a nut plate 11 is provided on the inner surface of the left frame 1, and the fixing screw passes through the rear cover plate 10 and the left frame 1 and is connected to the nut plate 11.

[0040] In this embodiment: To more reliably secure the rear cover plate 10, a nut plate 11 is provided on the inner surface of the left frame 1 at the corresponding screw position. The fixing screw passes through the rear cover plate 10 and the left frame 1, and is directly threaded into the nut plate 11. The nut plate 11 provides a longer thread engagement length and a larger force-bearing area, making the connection between the fixing screw and the left frame more robust and reliable, effectively preventing thread stripping or loosening. Compared to directly tapping the frame material, the use of a nut plate can withstand more disassembly and installation cycles, is less likely to damage the threads, and improves the service life and maintenance convenience of the component.

[0041] In one embodiment: the bottom of the left frame 1 is provided with a plurality of lower connecting plates 12, the lower connecting plates 12 extend toward the right frame 2 and cover the bottom of the right frame 2, and the fixing screws pass through the lower connecting plates 12 and are connected to the right frame 2 as a whole.

[0042] In this embodiment, multiple lower connecting plates 12 are provided on the outer bottom of the left frame 1. These connecting plates extend towards the right frame 2 and cover a portion of the bottom of the right frame 2. The lower connecting plates 12 are connected to the right frame 2 by fixing screws, thereby forming a robust connection at the bottom of the dust collection hood and further tightly connecting the left and right frames together. At the same time, the lower connecting plates 12 provide additional connection points and support at the bottom of the dust collection hood, significantly enhancing the structural rigidity and stability of the entire dust collection hood and resisting vibrations and stresses generated during tool cutting.

[0043] In one example: a dust brush 13 is installed on the front end of the left frame 1 facing the feed end.

[0044] In this embodiment, the dust brush 13 is installed on the front end of the left frame 1 facing the wood feed side. When the wood enters the dust collection area 3 from the front end for processing, the dust brush 13 can flexibly contact the surface of the wood, filling the gap between the wood and the front opening of the dust collection hood. At the same time, the dust brush 13 forms an effective physical barrier, minimizing the spillage of sawdust and dust from the front opening during the wood's entry and exit, ensuring the efficient operation of the dust collection system, and further improving the cleanliness of the working environment.

[0045] In summary, this utility model provides a dust collection cover for a wood combing machine that prevents clogging. Its core design concept is to achieve efficient dust collection, effective clogging prevention, and convenient maintenance through structural optimization.

[0046] Specifically, the entire dust collection hood is assembled from a left frame 1 and a right frame 2 via a snap-fit ​​mechanism. This modular design is its primary technological highlight. It makes the installation, disassembly, and maintenance of the dust collection hood exceptionally simple and quick. When the internal blade assembly 4 needs inspection, repair, or replacement, operators can easily separate the two frames, greatly saving time and labor costs. Compared to traditional integral or complex bolt-fixed structures, this significantly improves the equipment's maintenance efficiency and operability.

[0047] After assembly, the left frame 1 and the right frame 2 together form an "n"-shaped dust collection area 3 with an open front end, completely enclosing the high-speed rotating comb blade assembly 4. Within this area, the blade assembly 4 cuts the incoming timber, and the resulting sawdust, dust, and other cutting materials are effectively controlled within the dust collection area 3.

[0048] The core anti-clogging feature of this invention lies in the clearance zone 5, which extends outward from the left frame 1 towards the feed end. During comb cutting of the wood, the blade assembly 4 exerts a tearing force on the wood in the direction of blade rotation. When the clamping mechanism has limited pressure on the wood, or when the wood is of varying lengths leading to unstable clamping, the wood may be accidentally pulled and attempt to enter the narrow gap between the blade and the dust collection hood. At this point, the clearance zone 5 comes into play, providing a crucial and sufficient buffer and containment space for these accidentally entered wood pieces. This means the wood will not be immediately and tightly jammed between the high-speed rotating blade and the dust collection hood wall, effectively preventing jamming, equipment damage, or even shutdown accidents caused by excessive instantaneous cutting load. This design fundamentally solves the problem of existing comb cutting machines easily interrupting operations due to jamming, significantly improving the operational stability and production continuity of the equipment. The clearance zone 5 extends integrally from the left frame 1 body material and adopts a trapezoidal cross-section, optimizing the internal space while ensuring structural strength, making it easier to accommodate and guide accidentally entered wood or debris.

[0049] Closely integrated with the clearance zone 5 is the suction pipe 6, installed on the outside of and connected to the left frame 1. The suction pipe 6 generates negative pressure to efficiently remove sawdust, dust, and even lightweight wood blocks trapped in the clearance zone 5 from the dust collection zone 3 and the clearance zone 5. This continuous suction not only ensures the cleanliness of the dust collection zone but also assists in preventing clogging by removing small debris that could cause blockage. The baffle 7 at the rear of the clearance zone 5 further optimizes the airflow organization within the clearance zone, guiding airflow and debris, preventing accumulation, and improving suction efficiency.

[0050] In addition, to further improve the ease of maintenance of the equipment, inspection areas 8 are provided on the top of the left frame 1 and the right frame 2, and a top cover 9 is provided. This provides a quick and convenient top access, allowing operators to perform routine inspections or simple cleaning of the inside of the dust collection hood without large-scale disassembly.

[0051] The overall structure of the dust collection hood has been strengthened and improved through other detailed design features. The rear cover plate 10, located at the rear end of the left frame 1, is connected to the left frame 1 via fixing screws, forming a robust connection structure. It is also removable, facilitating rear maintenance. The nut plate 11 on the inner surface of the left frame 1 further enhances the robustness and reusability of the rear cover plate 10 connection. At the bottom of the dust collection hood, several connecting plates 12 located on the outer bottom of the left frame 1 extend to the bottom of the right frame 2 and are fixedly connected thereto. This, combined with the left-right interlocking design, provides stronger bottom connection and structural rigidity for the entire dust collection hood, ensuring the stability and sealing of the equipment during high-speed operation.

[0052] Finally, to ensure effective dust collection and prevent dust overflow, a dustproof brush 13 is installed on the front end of the left frame 1 facing the feed end. It can effectively seal the gap when the wood is fed, and maximize the control of sawdust and dust inside the dust collection hood, further improving the cleanliness of the working environment.

[0053] In summary, this utility model achieves great convenience in disassembly and maintenance through its "left and right interlocking" structure. The synergistic effect of the "avoidance zone" and "suction pipe" fundamentally solves the industry pain point of timber blockage. Furthermore, through a series of optimized designs including the maintenance area, various connectors, and dustproof brushes, it provides a highly efficient, stable, and easy-to-maintain dust collection cover for wood combing machines, bringing significant technological advancements to the wood processing industry. Therefore, it can be widely promoted and used.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A dust collection cover for preventing clogging in a wood combing machine, characterized in that: It includes a left frame (1) and a right frame (2) that are interlocked and cover the periphery of the blade assembly (4). The left frame (1) and the right frame (2) together form an "n"-shaped dust collection area (3) with an open front end. The blade assembly (4) is installed in the dust collection area (3). The left frame (1) extends outward from the side facing the feed end to provide a clearance area (5). The suction pipe (6) is installed outside the left frame (1) and is connected to the clearance area (5).

2. The anti-clogging dust collection cover for a wood combing machine according to claim 1, characterized in that: The aforementioned air-avoidance zone (5) extends outward from the main body material of the left frame (1), and the cross-section of the air-avoidance zone (5) is trapezoidal.

3. The anti-clogging dust collection cover for a wood combing machine according to claim 1, characterized in that: The rear end of the shelter area (5) is vertically extended and equipped with a spoiler (7).

4. The anti-clogging dust collection cover for a wood combing machine according to claim 1, characterized in that: The top of the left frame (1) and the right frame (2) are provided with maintenance areas (8), and a top cover (9) is installed in the maintenance areas (8).

5. The anti-clogging dust collection cover for a wood combing machine according to claim 1, characterized in that: The rear end of the left frame (1) is provided with a rear cover plate (10), which covers the rear end of the left frame (1). The fixing screw passes through the rear cover plate (10) and is fixedly connected to the left frame (1) as one unit.

6. The anti-clogging dust collection cover for a wood combing machine according to claim 5, characterized in that: The inner surface of the left frame (1) is provided with a nut plate (11), and the fixing screw passes through the rear cover plate (10) and the left frame (1) and is connected to the nut plate (11).

7. The anti-clogging dust collection cover for a wood combing machine according to claim 1, characterized in that: The bottom of the left frame (1) is provided with several lower connecting plates (12). The lower connecting plates (12) extend toward the right frame (2) and cover the bottom of the right frame (2). The fixing screws pass through the lower connecting plates (12) and are connected to the right frame (2) as one unit.

8. The anti-clogging dust collection cover for a wood combing machine according to claim 1, characterized in that: A dustproof brush (13) is installed on the front end of the left frame (1) facing the feed end.

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