Laser cutting machine with upper and lower smoke exhaust device

Abstract

This utility model discloses a laser cutting machine with upper and lower smoke exhaust devices, belonging to the field of laser cutting machine technology. This laser cutting machine effectively removes smoke and odors generated during cutting by installing smoke exhaust devices on both the upper and lower sides. The upper smoke exhaust pipe design removes smoke and odors that drift onto the moving gantry, while preventing smoke from entering the gantry and affecting the smoothness of the internal laser path. Multiple separate, downward-facing smoke collection hoppers are installed to gather and exhaust the main smoke and odors generated during cutting. As the moving gantry moves, the corresponding separate, downward-facing smoke collection hoppers and lower smoke exhaust ducts operate according to the cutting position of the laser head, allowing for zoned smoke exhaust at the bottom of the main unit based on changes in the cutting position. This reduces energy consumption, demonstrates a scientific and reasonable design, excellent smoke exhaust effect, and strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting machine technology, specifically a laser cutting machine with upper and lower smoke exhaust devices. Background Technology

[0002] Laser cutting machines generate fumes and odors when processing materials. From the perspective of operator impact, the fumes may contain various non-metallic particles, dust, and other harmful substances. Inhalation of these substances can cause respiratory illnesses such as coughing, asthma, and pneumoconiosis. The odors may originate from the materials themselves or chemical reagents produced during processing. Some irritating odors can irritate the eyes and respiratory mucous membranes, and long-term exposure may lead to more serious health problems such as allergies and poisoning.

[0003] For precision machine parts, tiny particles in the fumes can adhere to their surfaces, affecting their normal operation and precision. For example, if they enter precision transmission components or electronic parts, they may cause accelerated wear, short circuits, and other malfunctions, reducing the machine's lifespan and machining accuracy.

[0004] To address the aforementioned issues, we have developed a dual-function smoke extraction system. Firstly, an internal smoke extraction device is installed within the machine to remove smoke and odors near their source. Secondly, a smoke extraction device is installed on the moving gantry to remove smoke and odors that drift above the machine. By working in tandem, these two systems effectively solve the problem of smoke and odors generated during material processing, significantly improving the working environment, protecting operator health, and reducing damage to the machine's precision components. Utility Model Content

[0005] The purpose of this invention is to provide a laser cutting machine with an upper and lower smoke exhaust device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A laser cutting machine with an upper and lower smoke exhaust device includes a main unit, a movable gantry frame on the main unit, a laser head on the movable gantry frame, an upper smoke exhaust device fixedly installed at the lower end of the movable gantry frame near the laser head, and multiple adjacent separate sinking smoke collection hoppers at the bottom of the main unit for collecting the smoke generated during cutting. The separate sinking smoke collection hoppers are connected to a lower smoke exhaust pipe assembly for discharging the smoke from the separate sinking smoke collection hoppers.

[0007] As a further preferred embodiment of this utility model: the upper smoke extraction device includes an upper smoke extraction pipe fixedly installed at the lower end of the movable gantry frame, the lower end of the upper smoke extraction pipe having multiple smoke extraction holes, an upper smoke exhaust duct fixedly connected to the rear side of the upper smoke extraction pipe, and the upper smoke exhaust duct connected to an external smoke exhaust fan.

[0008] As a further preferred embodiment of this utility model: the lower smoke extraction pipe assembly includes multiple lower smoke extraction main ducts corresponding to each separate lower smoke collection bin, the side wall of the separate lower smoke collection bin is provided with a side smoke extraction port, the lower smoke extraction main duct is connected to a lower smoke extraction branch duct, the lower smoke extraction branch duct is connected to the side smoke extraction port, the lower smoke extraction main duct is provided with a flow valve, and the lower smoke extraction main duct is connected to an external smoke extraction fan.

[0009] As a further preferred embodiment of this utility model: the upper part of the main unit is provided with a plurality of downward blowing fans located above the laser head for blowing air downwards.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This laser cutting machine effectively removes smoke and odors generated during cutting by installing smoke extraction devices on both the top and bottom sides. The design of the upper smoke extraction pipe removes smoke and odors that drift onto the moving gantry, preventing smoke from entering the gantry and affecting the smoothness of the internal laser path. Multiple separate, sunken smoke collection hoppers collect and expel the main smoke and odors generated during cutting. As the moving gantry moves, the corresponding separate, sunken smoke collection hoppers and lower smoke extraction ducts operate according to the cutting position of the laser head, expelling the smoke and odors. This allows for zoned smoke extraction at the bottom of the main unit based on changes in the cutting position, eliminating the need for continuous smoke extraction at the bottom, reducing energy consumption. The design is scientifically sound, with excellent smoke extraction performance and strong practicality. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the laser cutting machine with upper and lower smoke exhaust devices according to the present invention; Figure 2 This is a three-dimensional structural diagram of the mobile gantry frame of this utility model; Figure 3 This is a bottom view of the structure of the mobile gantry frame of this utility model; Figure 4 This is a three-dimensional structural diagram of the main unit of this utility model. Figure 1 ; Figure 5 This is a three-dimensional structural diagram of the main unit of this utility model. Figure 2 ; Figure 6This is a three-dimensional structural diagram of the present invention with an inspection cover and a downward blowing fan.

[0012] In the diagram: 1. Main unit; 2. Mobile gantry; 3. Laser head; 4. Upper smoke exhaust pipe; 5. Separate sunken smoke collection hopper; 6. Side smoke exhaust port; 7. Smoke exhaust hole; 8. Upper smoke exhaust duct; 9. Lower smoke exhaust main duct; 10. Lower smoke exhaust branch duct; 11. Lower blower fan; 12. Inspection cover. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0014] Please see Figure 1-6 This embodiment provides a laser cutting machine with an upper and lower smoke exhaust device, including a main unit 1, a movable gantry 2 mounted on the main unit 1, and a laser head 3 mounted on the movable gantry 2. The above structure is a common structure of conventional laser cutting machines familiar to those skilled in the art, and its specific connection relationship will not be described in detail in this application.

[0015] like Figure 1-3 As shown, an upper smoke extraction device is fixedly installed at the lower end of the mobile gantry 2 near the laser head 3 to exhaust upward-floating smoke and odors. Specifically, the upper smoke extraction device includes an upper smoke extraction pipe 4 fixedly installed at the lower end of the mobile gantry 2. Multiple smoke extraction holes 7 are opened at the lower end of the upper smoke extraction pipe 4. An upper smoke exhaust duct 8 is fixedly connected to the rear side of the upper smoke extraction pipe 4, and the upper smoke exhaust duct 8 is connected to an external smoke exhaust fan. It should be noted that, as is common knowledge familiar to those skilled in the art, the upper smoke extraction pipe 4 can be fixedly installed on the crossbeam at the lower end of the mobile gantry 2 used to install the laser head 3; and the upper smoke exhaust duct 8 can be connected to the external smoke exhaust fan through a conventional structure such as a flexible hose. This is a conventional design and will not be further elaborated upon.

[0016] At the same time, such as Figure 1 , Figure 4 , Figure 5 As shown, multiple adjacent separate sinking smoke collection hoppers 5 are also provided at the bottom of the main unit 1 to collect the smoke and dust generated during cutting. Each separate sinking smoke collection hopper 5 is connected to a lower smoke extraction pipe assembly to discharge the smoke and dust from the separate sinking smoke collection hopper 5. Specifically, as... Figure 5As shown, the downdraft smoke extraction duct assembly includes multiple main downdraft smoke extraction ducts 9, each corresponding to a separate, sinking smoke-gathering hopper 5. Side smoke extraction ports 6 are provided on the side walls of the separate sinking smoke-gathering hopper 5. Downdraft smoke extraction branch ducts 10 are connected to the main downdraft smoke extraction ducts 9, and the branch ducts 10 are connected to the side smoke extraction ports 6. To enable each main downdraft smoke extraction duct 9 to operate independently, allowing the lower end of the main unit 1 to achieve zoned smoke extraction based on the position of the laser head 3, a flow valve is installed inside each main downdraft smoke extraction duct 9. The main downdraft smoke extraction duct 9 is then connected to an external smoke extraction fan. It should be noted that the design and assembly of the flow valve, and the connection between the main downdraft smoke extraction duct 8 and the external smoke extraction fan, should be conventional structural designs familiar to those skilled in the art, and this application will not elaborate further.

[0017] As a conventional structural replacement familiar to those skilled in the art, each main exhaust duct 9 can be connected to a separate exhaust fan. By controlling the operation of different exhaust fans, the corresponding separate submerged smoke collection hopper 5 can be driven to achieve the effect of smoke collection and exhaust.

[0018] like Figure 4 and Figure 5 As shown, as a conventional quantity design familiar to those skilled in the art, the number of separate sinking smoke collection hoppers 5 can be designed according to the size of the main unit 1. In this application, two are preferably provided, and two side exhaust ports 6 on each separate sinking smoke collection hopper 5 are also preferably provided symmetrically to facilitate a good smoke exhaust effect.

[0019] In addition, such as Figure 3 as well as Figure 6 As shown, to further prevent rising smoke from entering the mobile gantry, multiple downward-blowing fans 11 are installed at the upper end of the main unit 1, located above the laser head 3, for downward airflow. It should be noted that, as a conventional structure, the front of the mobile gantry 2 is usually hinged with a maintenance cover 12. The multiple downward-blowing fans 11 are simply installed on the maintenance cover 12, enabling downward airflow from top to bottom. This assists the upper smoke extraction pipe 4 in achieving effective smoke removal, demonstrating a scientific and reasonable design with strong practicality.

[0020] In practical applications, as is common sense, a sensor capable of sensing the specific position of the moving gantry 2 or the laser head 3 should be installed on the main unit 1. This allows the corresponding separate sinking smoke collection hopper 5 below the laser head to collect and exhaust smoke under the action of the corresponding exhaust duct. At the same time, the upper smoke exhaust pipe 4 on the moving gantry 2 also promptly exhausts the rising smoke and odors, thereby achieving the effect of simultaneous smoke exhaust from both the upper and lower sides, effectively improving the working environment.

[0021] It should be noted that the above embodiments are only specific and clear descriptions of the technical solutions and features of this application. Solutions or features that are prior art or common knowledge to those skilled in the art will not be described in detail in the above embodiments.

[0022] Furthermore, the technical solutions of this application are not limited to the above embodiments. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A laser cutting machine with an upper and lower smoke exhaust device, comprising a main unit (1), a movable gantry (2) mounted on the main unit (1), and a laser head (3) mounted on the movable gantry (2), characterized in that, The lower end of the mobile gantry (2) is fixedly equipped with an upper smoke-collecting device near the laser head (3). The bottom of the main unit (1) is provided with multiple adjacent separate sinking smoke-collecting hoppers (5) for collecting the smoke generated by cutting. The separate sinking smoke-collecting hoppers (5) are connected to a lower smoke-collecting pipe assembly for discharging the smoke in the separate sinking smoke-collecting hoppers (5).

2. The laser cutting machine with upper and lower smoke exhaust devices according to claim 1, characterized in that, The upper smoke extraction device includes an upper smoke extraction pipe (4) fixedly installed at the lower end of the mobile gantry (2). The lower end of the upper smoke extraction pipe (4) is provided with multiple smoke extraction holes (7). An upper smoke extraction duct (8) is fixedly connected to the rear side of the upper smoke extraction pipe (4). The upper smoke extraction duct (8) is connected to an external smoke extraction fan.

3. The laser cutting machine with up and down smoke exhaust device according to claim 1, characterized in that, The lower smoke exhaust pipe assembly includes multiple lower smoke exhaust main ducts (9) corresponding to each separate lower smoke collection bin (5). The separate lower smoke collection bin (5) has a side smoke exhaust port (6) on its side wall. The lower smoke exhaust main duct (9) is connected to a lower smoke exhaust branch duct (10), which is connected to the side smoke exhaust port (6). The lower smoke exhaust main duct (9) is equipped with a flow valve and is connected to an external smoke exhaust fan.

4. The laser cutting machine with up and down smoke exhaust device according to claim 1, characterized in that, The upper part of the main unit (1) is provided with multiple downward blowing fans (11) located above the laser head (3) for blowing air downwards.

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