A smoke removing device for a laser marking machine
By designing a smoke removal device for laser marking machines, the problems of smoke exhaust and packaging box positioning were solved, achieving effective smoke exhaust and stable marking position, protecting employee health and ensuring marking effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN AOLITE PHARMA
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-09
AI Technical Summary
The unpleasant fumes generated during the laser marking process cannot be effectively discharged, causing the packaging workshop to be filled with fumes, which affects the health of production employees. At the same time, the packaging boxes are prone to displacement due to accidental contact during marking, resulting in marking position deviation.
Design a smoke removal device that includes a fan, a smoke exhaust duct, and an n-shaped smoke exhaust rack. The device exhausts the smoke outdoors through the smoke inlet and microporous structure, and uses a positioning mechanism and adsorption area to keep the packaging box in a fixed position and prevent it from shifting.
It effectively removes coding fumes, protects employee health, and ensures that the relative position of the packaging box and the laser coding machine is fixed, avoiding coding position deviation.
Smart Images

Figure CN224333659U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of smoke removal technology, and in particular relates to a smoke removal device for laser marking machines. Background Technology
[0002] Laser marking machines are usually located on one side of the packaging conveyor line. The laser marking machine marks the packaging boxes on the conveyor line. During the marking process, the laser marking machine generates a lot of unpleasant fumes. Due to the room structure problem, the packaging workshop cannot achieve effective ventilation. The unpleasant fumes permeate the entire packaging workshop, which seriously affects the health of the production staff.
[0003] To ensure the coding effect, the packaging box to be coded needs to maintain a fixed distance from the laser coding machine. Currently, most of these machines use hydraulic push rods to push the packaging box to the coding position. However, after the packaging box is in place, it may be accidentally touched, causing the coding position to deviate. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a smoke removal device for laser marking machines.
[0005] This utility model is achieved through the following technical solution:
[0006] A smoke removal device for a laser marking machine includes an exhaust fan and a smoke exhaust duct, one end of which leads to the outside. The exhaust fan is installed in the smoke exhaust duct and is used to exhaust the smoke in the packaging workshop to the outside through the smoke exhaust duct. It also includes a smoke exhaust rack.
[0007] The smoke exhaust frame has an n-shaped shell structure, including a horizontal section and two vertical sections, with smoke inlets evenly distributed on the lower side of the horizontal section and the inner side of the vertical sections;
[0008] The smoke exhaust rack has multiple adsorption areas on the side away from the laser marking machine, and micropores are arrayed within the adsorption areas.
[0009] To further realize this utility model, the following technical solutions may be preferred:
[0010] Preferably, the smoke exhaust frame is composed of a top frame, a side frame, and an adjusting frame. The adjusting frame is inverted L-shaped, with its horizontal section slidingly fitted inside the top frame and the side frame slidingly fitted inside the vertical section of the adjusting frame.
[0011] Preferably, the top of the top frame is connected to the exhaust duct, and the top frame and the side frame are provided with an adsorption area on the side away from the laser marking machine. The bottom of the top frame and the inside of the side frame are provided with smoke inlets.
[0012] Preferably, the device further includes a positioning mechanism, which includes a positioning plate with an inverted L-shaped cross-section. The positioning plate is fixed to the side of the smoke exhaust rack away from the direction of conveying the packaging box, and the horizontal section of the positioning plate extends away from the laser marking machine.
[0013] Preferably, the positioning plate consists of a fixed plate, a sliding plate, and a rotating plate. The fixed plate is fixed to the smoke exhaust frame, the sliding plate is slidably arranged along the length of the fixed plate, and the rotating plate is hinged to the end of the sliding plate through a hinge shaft.
[0014] Preferably, the rotating plate is equipped with a position sensor, which is used to detect whether the packaging box is in contact with the rotating plate.
[0015] Preferably, the micropore diameter of the adsorption region is 0.1-0.5 mm, the porosity is ≥60%, and the micropore axis is distributed at an angle of 30-60° to the surface of the smoke exhaust frame.
[0016] The beneficial effects of this utility model through the above technical solution are:
[0017] During coding, the coding area of the packaging box is located below the horizontal section of the smoke exhaust rack and between the two vertical sections of the smoke exhaust rack. The smoke generated during coding is discharged to the outside through the smoke exhaust rack and smoke exhaust pipe.
[0018] The hydraulic push rod pushes the packaging box against the exhaust rack, ensuring the relative position of the packaging box and the laser marking machine. At the same time, the suction area adsorbs the packaging box onto the exhaust rack, preventing the packaging box from being accidentally positioned during marking. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a structural cross-sectional view of the smoke exhaust rack of this utility model;
[0021] Wherein: 1-exhaust rack; 2-smoke inlet; 3-absorption area; 4-positioning plate; 11-top rack; 12-side rack; 13-adjustment rack; 41-fixed plate; 42-slide plate; 43-rotating plate. Detailed Implementation
[0022] 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.
[0023] 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 scope of protection of the present utility model.
[0024] Example 1
[0025] Laser marking machines are usually located on one side of the packaging conveyor line. The laser marking machine marks the packaging boxes on the conveyor line. During the marking process, the laser marking machine generates a lot of unpleasant fumes. However, due to the room structure problem, the packaging workshop cannot achieve effective ventilation. The unpleasant fumes permeate the entire packaging workshop, seriously affecting the health of production employees. In order to eliminate the uncomfortable gas, after multiple practices, the following technical solution was adopted and successfully solved this problem.
[0026] like Figure 1 and Figure 2 As shown, a smoke removal device for a laser marking machine includes an exhaust fan and a smoke exhaust duct. One end of the smoke exhaust duct leads to the outside. The exhaust fan is installed in the smoke exhaust duct and is used to exhaust the smoke in the packaging workshop to the outside through the smoke exhaust duct. It also includes a smoke exhaust frame 1, which is an n-shaped shell. Several adsorption areas 3 are provided on the side of the smoke exhaust frame 1 away from the laser marking machine. Smoke inlets 2 are provided on the lower side of the horizontal section and the inner side of the vertical section of the smoke exhaust frame 1. The upper side of the horizontal section of the smoke exhaust frame 1 is connected to the smoke exhaust duct.
[0027] In this embodiment, multiple micropores are provided in the adsorption region 3. The micropore diameter is 0.1-0.5 mm, the porosity is ≥60%, and the axis of the micropores is distributed at an angle of 30-60° to the surface of the smoke exhaust frame 1.
[0028] During coding, the coding area of the packaging box is located below the horizontal section of the smoke exhaust frame 1 and between the two vertical sections of the smoke exhaust frame 1. The smoke generated during coding is discharged to the outside through the smoke exhaust frame 1 and the smoke exhaust pipe.
[0029] To ensure effective coding, the packaging box to be coded needs to maintain a fixed distance from the laser coding machine. Currently, most methods use hydraulic pushers to move the packaging box to the coding position. However, after the packaging box is in place, accidental contact can cause positional shifts, resulting in coding position deviations. In this embodiment, the hydraulic pusher pushes the packaging box against the exhaust frame 1, ensuring the relative position of the packaging box and the laser coding machine. Simultaneously, the suction area adheres the packaging box to the exhaust frame 1, preventing accidental positioning of the packaging box during coding.
[0030] To accommodate different sized coding areas, the exhaust frame 1 includes a top frame 11, side frames 12, and adjustable frames 13. The top frame 11 is arranged horizontally, and the top of the top frame 11 is connected to the exhaust pipe. The two adjustable frames 13 are located at both ends of the top frame 11. The adjustable frames 13 are in the shape of an inverted L. The horizontal section of the adjustable frame 13 is slidably fitted inside the top frame 11. The two side frames 12 are slidably fitted into the vertical sections of the two adjustable frames 13.
[0031] The top frame 11 and the side frame 12 are both provided with an adsorption area 3 on the side away from the laser marking machine, and the bottom of the top frame 11 and the inside of the side frame 12 are both provided with a smoke inlet 2.
[0032] The smoke removal device also includes a positioning mechanism, which includes a positioning plate 4. The cross-section of the positioning plate 4 is an inverted L-shape. The vertical section of the positioning plate 4 is fixedly connected to the side of the smoke exhaust rack 1 away from the direction of conveying the packaging box, and the horizontal section of the positioning plate 4 extends away from the laser marking machine.
[0033] The positioning plate 4 includes a fixed plate 41, a sliding plate 42, and a rotating plate 43. The fixed plate 41 is fixedly connected to the smoke exhaust frame 1. The sliding plate 42 is slidably disposed on the fixed plate 41 along the length direction of the fixed plate 41. The rotating plate 43 is hinged to one end of the sliding plate 42.
[0034] By adjusting the relative positions of the slide plate 42 and the fixed plate 41, when the packaging box reaches the rotating plate 43, the coding area of the packaging box is located between the two vertical sections of the smoke exhaust rack 1. After coding is completed, the rotating plate 43 flips to one side, so that the coded packaging box is moved away with the conveyor line. Then the rotating plate 43 returns to the initial position to wait for the next packaging box to be coded.
[0035] A position sensor is installed on the rotating plate 43. The position sensor is used to determine whether the packaging box is against the rotating plate 43. When the packaging box is against the rotating plate 43, the hydraulic push rod extends outward, so that the packaging box is against the smoke exhaust rack 1.
[0036] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A smoke removal device for a laser marking machine, comprising an exhaust fan and a smoke exhaust duct, one end of which leads to the outside, the exhaust fan being installed in the smoke exhaust duct and used to exhaust the smoke from the packaging workshop to the outside through the smoke exhaust duct, characterized in that, It also includes a smoke exhaust rack (1); The smoke exhaust rack (1) has an n-shaped shell structure, including a horizontal section and two vertical sections, with smoke inlets (2) evenly distributed on the lower side of the horizontal section and the inner side of the vertical section; The smoke exhaust rack (1) has multiple adsorption areas (3) on the side away from the laser marking machine, and micropores are arrayed in the adsorption areas (3).
2. The smoke removal device for a laser marking machine according to claim 1, characterized in that, The smoke exhaust frame (1) consists of a top frame (11), a side frame (12) and an adjusting frame (13). The adjusting frame (13) is inverted L-shaped, with its horizontal section slidingly fitted inside the top frame (11) and the side frame (12) slidingly fitted inside the vertical section of the adjusting frame (13).
3. A smoke removal device for a laser marking machine according to claim 2, characterized in that, The top of the top frame (11) is connected to the exhaust pipe. The top frame (11) and the side frame (12) are both provided with an adsorption area (3) on the side away from the laser marking machine. The bottom of the top frame (11) and the inside of the side frame (12) are both provided with a smoke inlet (2).
4. A smoke removal device for a laser marking machine according to claim 1, characterized in that, It also includes a positioning mechanism, which includes a positioning plate (4) with an inverted L-shaped cross section. The positioning plate (4) is fixed to the side of the smoke exhaust rack (1) away from the direction of conveying the packaging box, and the horizontal section of the positioning plate (4) extends away from the laser marking machine.
5. A smoke removal device for a laser marking machine according to claim 4, characterized in that, The positioning plate (4) consists of a fixed plate (41), a sliding plate (42) and a rotating plate (43). The fixed plate (41) is fixed to the smoke exhaust frame (1), the sliding plate (42) is slidably arranged along the length direction of the fixed plate (41), and the rotating plate (43) is hinged to the end of the sliding plate (42) through a hinge shaft.
6. A smoke removal device for a laser marking machine according to claim 5, characterized in that, The rotating plate (43) is equipped with a position sensor, which is used to detect whether the packaging box is in contact with the rotating plate (43).
7. A smoke removal device for a laser marking machine according to claim 1, characterized in that, The micropore diameter of the adsorption region (3) is 0.1-0.5 mm, the porosity is ≥60%, and the micropore axis is distributed at an angle of 30-60° to the surface of the smoke exhaust frame (1).