A dust removal cover and a plate cutting device
Patent Information
- Application Number
- CN202522472490.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-21
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-21
AI Technical Summary
The inner wall of the dust collector cavity in existing sheet metal cutting devices is prone to wear, resulting in high maintenance costs, decreased sealing performance, and extended equipment downtime.
A baffle is installed on the inner wall of the dust collector hood. The baffle is detachable and fixed by bolts. It has higher wear resistance than the hood and is used to intercept sawdust. It is also equipped with a negative pressure interface to connect to an external negative pressure device.
The baffle effectively protects the cavity, reduces wear, decreases maintenance costs, and improves equipment lifespan and processing efficiency.
Smart Images

Figure CN224928181U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to sheet metal processing equipment, and in particular to a dust removal hood and sheet metal cutting device. Background Technology
[0002] In the processing of wood-based panels and engineered wood products, the panel cutting device (such as a table saw or sliding table saw) is the core equipment. It uses a high-speed rotating saw blade to cut and groove the panels. To prevent the large amount of sawdust generated during the cutting process from spreading into the environment and to protect the saw blade from external interference, panel cutting devices are usually equipped with a dust hood. The dust hood covers the cutting area of the saw blade, and together with an external negative pressure device (such as a negative pressure fan or dust collector), it sucks away the sawdust, achieving the dual functions of dust removal and processing protection.
[0003] However, the dust hoods of existing sheet metal cutting devices have the following key technical problems in practical use:
[0004] The inner wall of the dust collector chamber is prone to wear and tear, resulting in high maintenance costs. When the saw blade rotates at high speed (typically 2000-5000 r / min) to cut the sheet metal, the resulting sawdust flies outwards at high speed. This sawdust often contains sheet metal debris and hard impurities, which directly impact the inner wall of the dust collector chamber. Over time, significant wear and dents appear on the inner wall, leading to decreased sealing and reduced negative pressure. Ultimately, the entire dust collector chamber needs to be replaced, resulting in high maintenance costs (replacing the entire dust collector chamber costs 3-5 times more than replacing a single component) and extended downtime, impacting processing efficiency.
[0005] Therefore, in view of the shortcomings of the existing technology, it is necessary to design a dust removal hood and a sheet metal cutting device to solve the above problems. Utility Model Content
[0006] In view of the shortcomings of existing dust collector hoods, such as "easy wear of the inner wall of the cavity and high maintenance cost", this utility model provides a dust collector hood and a plate cutting device, which aims to achieve the goal of "protecting the cavity and reducing maintenance cost" by optimizing the internal structure of the dust collector hood.
[0007] To achieve the above and other related objectives, the technical solution provided by this utility model is: a dust removal hood, including a dust removal hood body, the dust removal hood body having a cavity for rotating a saw blade, and a baffle provided on the inner wall of the cavity, the baffle being used to intercept sawdust that is knocked away by the saw blade during the processing of the board.
[0008] A preferred technical solution is that the baffle has a mounting part that fits and is installed in close contact with the cavity, and the mounting part is detachably and fixedly connected to the cavity by bolts.
[0009] The preferred technical solution is that the baffle has a striking part for intercepting sawdust, and the striking part is arranged in an arc.
[0010] The preferred technical solution is that the wear resistance of the baffle is higher than that of the cavity.
[0011] The preferred technical solution is as follows: the dust collector body is provided with a negative pressure interface, the negative pressure interface is connected to the cavity, and the negative pressure interface is used to connect to an external negative pressure device.
[0012] A sheet metal cutting device includes the aforementioned dust hood.
[0013] Due to the application of the above technical solution, the beneficial effects of this utility model are as follows:
[0014] Solving the problem of "cavity wear" and reducing maintenance costs: The baffle directly impacts the high-speed sawdust, avoiding direct contact between the sawdust and the inner wall of the cavity, fundamentally protecting the dust collector body and extending the overall service life of the dust collector; the baffle is made of highly wear-resistant material and can be detached and fixed by bolts, so only a single baffle needs to be replaced after wear, without having to stop the machine to disassemble the entire dust collector, thus improving maintenance efficiency.
[0015] The equipment is highly adaptable and practical: the dust hood has a simple structure and can be adapted to saw blades and plate cutting devices of different specifications by adjusting the cavity size and baffle curvature; the plate cutting device is equipped with this dust hood, which improves the overall processing efficiency and processing quality. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the sheet metal cutting device involved in this utility model. Detailed Implementation
[0017] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0018] Please see Figure 1It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0019] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0020] Example:
[0021] like Figure 1 As shown, according to an overall technical concept of the present invention, a dust removal hood is provided, including a dust removal hood body 1. The dust removal hood body 1 has a cavity 11 for rotating a saw blade 100. A baffle 2 is provided on the inner wall of the cavity 11. The baffle 2 is used to intercept the sawdust 300 that is knocked away by the saw blade 100 during the processing of the board 200.
[0022] like Figure 1 As shown, in an exemplary embodiment of the present invention, the baffle 2 has a mounting part 21 that fits into the cavity 11, and the mounting part 21 is detachably fixed to the cavity 11 by bolts.
[0023] like Figure 1 As shown, in an exemplary embodiment of this utility model, the baffle 2 has an impact portion 22 for impacting the sawdust 300. The impact portion 22 is arc-shaped to guide the sawdust 300 to slide out of the impact portion 22, so as to avoid the sawdust from accumulating and affecting the operation of the saw blade 100.
[0024] like Figure 1As shown, in an exemplary embodiment of this utility model, the wear resistance of the baffle 2 is higher than that of the cavity 11.
[0025] like Figure 1 As shown, in an exemplary embodiment of this utility model, the dust hood body 1 is provided with a negative pressure interface 12, which is connected to the cavity 11. The negative pressure interface 12 is used to connect to an external negative pressure device to suck out the sawdust 300.
[0026] A sheet metal cutting device includes the aforementioned dust hood.
[0027] Therefore, this utility model has the following advantages:
[0028] This utility model discloses a dust collector hood and a sheet metal cutting device, including a dust collector hood body with a cavity inside for rotating a saw blade. A baffle is installed on the inner wall of the cavity. The baffle has a mounting part that fits against the inner wall of the cavity and is detachably fixed by bolts, and an arc-shaped impact part to meet the saw blade. The baffle has a wear resistance higher than that of the cavity. The dust collector hood body also has a negative pressure interface connected to the cavity for connecting to an external negative pressure device. The sheet metal cutting device includes the aforementioned dust collector hood. This utility model reduces wear by preventing sawdust from directly impacting the cavity through the baffle, reduces maintenance costs by the detachable baffle, and improves sawdust capture rate by the arc-shaped impact part combined with the negative pressure interface. It effectively improves the processing environment, ensures sheet metal cutting accuracy, and is highly practical.
[0029] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A dust collector hood, characterized in that: The device includes a dust collector body, which has a cavity for rotating a saw blade. A baffle is provided on the inner wall of the cavity to intercept sawdust generated by the saw blade during the processing of the board. The baffle has a mounting part that fits into the cavity and is detachably and fixedly connected to the cavity.
2. A dust collector hood according to claim 1, characterized in that: The baffle has a striking part for intercepting sawdust, and the striking part is arranged in an arc.
3. A dust collector hood according to claim 1, characterized in that: The wear resistance of the baffle is higher than that of the cavity.
4. A dust collector hood according to claim 1, characterized in that: The dust collector hood body is provided with a negative pressure interface, which is connected to the cavity and is used to connect to an external negative pressure device.
5. A sheet metal cutting device, characterized in that: Includes the dust cover as described in any one of claims 1-4.
