Laser engraving cutting machine with heat dissipation and smoke exhaust functions

Abstract

The utility model relates to the technical field of laser marking, in particular to a laser engraving cutting machine with heat dissipation and smoke exhaust functions, which comprises a base, a back plate fixed at the top of the base and a lifting device mounted on the back plate, a movable end of the lifting device is connected with a lifting table capable of sliding along the back plate, and a table plate is arranged on the lifting table. A laser module is arranged above the platen, and a shell covering the laser module is fixed to the lifting table. According to the laser engraving cutting machine with the heat dissipation and smoke exhaust functions, when equipment runs, the exhaust fan and the exhaust fan run together, so that the exhaust fan introduces external air through cooperation of the exhaust hole and the corrugated concave surface of the back plate, heat dissipation is conducted on the cooling fins, and heat is pushed into the cover body; and then the exhaust fan can exhaust the cover body and heat and smoke generated in the machining process together, and external air enters through a gap between the cover body and the shell, so that the heat dissipation and smoke exhaust effects are improved, the service life of the equipment is prolonged, and the stability of the equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser marking technical field, concretely is a kind of laser engraving cutting machine with heat dissipation and smoke exhaust. BACKGROUND

[0002] With the development of laser technology and its wide application in industrial manufacturing, the requirements for laser processing equipment are also becoming higher and higher. Especially in the field of precision machining such as laser marking, cutting and welding, the laser processing head as the core component directly affects the quality and production efficiency of the final product.

[0003] Firstly, a large amount of heat and harmful gas will be generated during the working process of the laser processing head, especially in high-power density application scenarios, the heat dissipation measures in traditional design often cannot effectively dissipate the heat, resulting in overheating of the processing head, which not only affects the stability and service life of the equipment, but also may cause the quality of laser output to decrease, further affecting the processing effect.

[0004] Secondly, when adjusting the height of the laser processing head to adapt to the processing needs of materials of different thicknesses, it is usually dependent on the experience of operators or manual adjustment using additional measuring tools. This adjustment method not only consumes time and effort, but also due to the influence of human factors, it is difficult to ensure the accuracy and consistency of each adjustment, thereby affecting the processing quality. SUMMARY

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a laser engraving cutting machine with heat dissipation and smoke exhaust, comprising a base and a back plate fixed on the top of the base, and a lifting device installed on the back plate, the moving end of the lifting device is connected with a lifting platform that can slide along the back plate, a table plate is provided on the lifting platform, a laser module is installed above the table plate, a shell that covers the laser module inside is fixed on the lifting platform, and a heat dissipation plate that covers the lifting platform is also fixed at the bottom of the shell, a cover body that covers the shell inside is slidably connected on the back plate, and a gap is left between the shell and the cover body, the side of the back plate that is in contact with the shell is corrugated, a pair of air extraction holes are formed on the back plate, two groups of air extraction fans that are opposite to the corresponding air extraction holes are also installed on the lifting platform, an air outlet is formed on the back plate, and an air exhaust fan that covers the air outlet is installed on the back surface.

[0006] Further, a plurality of heat dissipation fins opposite to the air extraction fans are fixed on the bottom of the table plate.

[0007] Further, a pair of side wheels that are in contact with the cover body are installed on both sides of the shell.

[0008] Further, a field lens that is penetrated by the heat dissipation plate is installed on the bottom of the table plate, and a visual camera and two groups of red light indicators that are distributed around the field lens are installed on the bottom of the lifting platform.

[0009] Further, the bottom of the lifting platform is provided with two groups of grooves, a pressing piece is fixed in each groove through a pair of adjusting bolts, a round hole is formed between the pressing piece and the corresponding groove, a mounting ball is clamped in the round hole, the top and bottom of the mounting ball are flat, and a stepped hole is formed at the eccentric position of the mounting ball, and the red light indicator is placed in the corresponding stepped hole and is locked and fixed through a top screw.

[0010] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0011] The laser engraving and cutting machine with heat dissipation and smoke exhaust functions, when the equipment is running, the exhaust fan and the air suction fan run together, so that the air suction fan guides external air into the heat dissipation fins through the air suction hole and the back plate corrugated concave surface, so as to dissipate heat and push the heat into the cover body, and then the exhaust fan can exhaust the heat and smoke generated in the machining process together, and external air enters through the gap between the cover body and the shell, thereby improving the heat dissipation and smoke exhaust effect and improving the service life and stability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic view of the utility model;

[0013] Figure 2 It is a structural schematic view of the utility model Figure 1 It is a rear view three-dimensional structural schematic view of the utility model without the cover body;

[0014] Figure 3 It is a structural schematic view of the utility model Figure 1 It is a three-dimensional schematic view of the lifting device connecting structure in the utility model;

[0015] Figure 4 It is a structural schematic view of the utility model Figure 3 It is a rear view three-dimensional schematic view of the shell connecting structure in the utility model;

[0016] Figure 5 It is a structural schematic view of the utility model Figure 4 It is a three-dimensional structural schematic view of the utility model without the shell;

[0017] Figure 6 It is a structural schematic view of the utility model Figure 5 It is a back side view three-dimensional structural schematic view of the utility model without the heat dissipation plate;

[0018] Figure 7 It is a structural schematic view of the utility model Figure 6 It is a schematic view of the pressing piece connecting structure in the utility model.

[0019] In the figure: 1, base; 2, back plate; 3, lifting device; 5, exhaust fan; 51, exhaust port; 6, cover body; 7, shell; 72, heat dissipation plate; 73, field lens; 74, lifting platform; 75, air suction fan; 76, air suction hole; 77, visual camera; 78, side wheel; 79, red light indicator; 710, pressing piece; 711, mounting ball; 712, laser module; 714, table plate; 715, adjusting bolt; 716, heat dissipation fin. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figures 1-7 In the embodiment, the laser engraving and cutting machine with heat dissipation and smoke exhaust function comprises a base 1, the base 1 is fixedly provided with a back plate 2, the back plate 2 is provided with a lifting device 3, the lifting device 3 is an electric screw rod device, the back plate 2 is rotatably connected with a handle, the handle and the outer side of the screw rod are fixedly provided with meshing bevel gears, the moving end of the lifting device 3 is slidably connected with the back plate 2, the moving end of the lifting device 3 is fixedly provided with a lifting platform 74 which is vertically movable on the front surface of the back plate 2, the lifting platform 74 is provided with a convex-shaped opening, the two side edges of the lifting platform 74 are upwardly extended and protruded, the top portions of the two groups of protrusions are fixedly provided with a table plate 714, the table plate 714 and the table surface of the lifting platform 74 form a heat dissipation interval, the bottom of the table plate 714 is provided with heat dissipation fins 716 which are located in the heat dissipation interval, the table surface of the lifting platform 74 is provided with two groups of air suction fans 75 which are opposite to the heat dissipation fins 716, the table plate 714 is provided with a laser module 712, the back plate 2 is provided with an exhaust port 51, and the back surface is provided with an exhaust fan 5 which covers the exhaust port 51.

[0022] In the above structure, the lifting platform is moved to a specified height by the lifting device, then the laser module is operated, at the same time, the exhaust fan and the air suction fan are simultaneously operated, the heat generated by the operation of the laser module is adsorbed by the heat dissipation fins through the table plate, and the external air is sucked into the heat dissipation fins by the air suction fan, so that the heat dissipation effect of the heat dissipation fins and the heat dissipation effect of the equipment can be achieved. At the same time, the lifting platform is provided with a convex-shaped opening, so that the lifting platform and the table plate are not sealed through the opening, so that the exhaust of heat dissipation can be completed. At the same time, when the laser module is operated, the harmful gas generated by the material can be exhausted and collected and treated through the exhaust fan and the exhaust port, so that the smoke spreading into the air can be effectively prevented.

[0023] The back plate 2 is slidably connected with a cover body 6 which covers the lifting platform 74 inside, and the cover body 6 is spaced apart from the lifting platform 74. Therefore, during the machining process, the safety of the machining process can be improved under the cover of the cover body, and the harmful gas generated during the machining process can be prevented from being discharged, and the effect of smoke aggregation can be achieved. At the same time, because there is a gap between the cover body and the lifting platform, while the air is discharged outward, the air outside enters, and the heat inside the cover body during the machining process can be reduced.

[0024] In addition, the outer side of the lifting platform 74 is fixed with an outer shell 7 which covers the lifting platform 74 and the laser module 712 inside, the outer shell 7 is spaced apart from the cover body 6, the back of the outer shell 7 is attached to the back plate 2, and the side attached to the outer shell 7 is provided with two groups of air exhaust holes 76 which are opposite to the corresponding air exhaust fans 75, and the front surface of the back plate 2 is corrugated. Therefore, the outer shell can protect the lifting platform and the laser module from being damaged, and the effect of smoke aggregation can be achieved. At the same time, the air exhaust holes are attached to the corrugated surface of the back plate, so that the concave surface of the back plate can guide the external air to enter, and the outer shell can also play the role of wind aggregation. When the air exhaust fan sucks the external air into the outer shell, the heat dissipation treatment can be carried out on the radiating fins, and the overall heat in the outer shell can be pushed downward, so that the heat is discharged into the cover body, and the smoke rising during the machining process can be prevented. At the same time, the heat and smoke can be discharged together by the exhaust fan.

[0025] Further, the left and right sides of the outer shell 7 are each provided with a pair of edge wheels 78 which are attached to the inner wall of the cover body 6. The edge wheels can improve the stability of the outer shell during the lifting process, and the edge wheels can also be attached to the inner wall of the cover body to maintain the gap between the outer shell and the cover body.

[0026] At the same time, the bottom of the lifting platform 74 is provided with a visual camera 77 and two groups of grooves, the bottom of the platform 714 is fixed with a field lens 73 which is provided with an opening and is arranged in the lifting platform 74, and the grooves are provided with a pair of red light indicators 79 which are arranged on the same axis as the field lens 73 and are inclined towards the field lens 73. In the initial state, the light beam of the field lens is perpendicular, and the light beams of the two groups of red light indicators are inclined, so that the three light spots coincide, and the three vertical light beams form an isosceles triangle. Therefore, when the three light spots hit the material, the lifting platform is lifted by the lifting device, and the field lens and the red light indicator move synchronously. Because the light beam of the field lens is perpendicular, the light spot on the material does not move during the lifting process, but the light beam of the red light indicator is inclined, so that the light spot on the material will shift during the lifting process. Therefore, the distance between the light spot of the red light indicator and the light spot of the field lens is captured in real time by the visual camera to analyze the lifting height, so as to improve the accuracy and consistency of the machining process and improve the machining quality.

[0027] Further explanation, the bottom of the lifting platform 74 is fixed with the heat dissipation plate 72 covering the platform plate 714, the field lens 73 is penetrated with the heat dissipation plate 72, and the glass plate opposite to the lens of the visual camera 77 is installed on the heat dissipation plate 72. Through the cooperation of the heat dissipation plate and the glass plate, the red light indicator and the visual camera can be protected, the red light indicator can be lighted through the heat dissipation hole of the heat dissipation plate, and meanwhile, the heat dissipation effect is not affected.

[0028] As Figures 6-7 The pressing sheet 710 is locked and fixed in the two groups of grooves through a pair of adjusting bolts 715, the pressing sheet 710 is provided with a circular hole on the side opposite to the corresponding groove, the mounting ball 711 is arranged in the circular hole between the pressing sheet 710 and the groove, the diameter of the mounting ball 711 is greater than that of the circular hole, the top and bottom of the mounting ball 711 are flat, a stepped hole is arranged at the eccentric position of the top, and the red light indicator 79 is inserted in the corresponding stepped hole and locked and fixed through a top screw.

[0029] Firstly, the red light indicator can be locked and fixed through the mounting hole, then the mounting ball can be adjusted in rotation in the circular hole when the adjusting screw is not locked and fixed to the pressing sheet, so that the coincidence of the red light indicator light spot and the field lens is adjusted, the position is corrected, the mounting ball can be finely adjusted by locking and fixing through the adjusting bolt and by screwing the adjusting bolts on different sides.

[0030] The working principle of the above embodiment is as follows:

[0031] When the equipment is running, the lifting device drives the lifting platform to lift, then the field lens, the red light indicator and the visual camera cooperate to enable the lifting platform to descend to a suitable height, the laser module is run, the air suction fan and the exhaust fan are started, the air enters through the back plate concave surface and the air suction hole, the air suction fan blows the heat dissipation fin to complete the heat dissipation of the heat dissipation fin, the heat is discharged into the cover body through the heat dissipation plate, the smoke in the processing does not rise, and the smoke and the heat in the cover body are extracted through the exhaust port through the exhaust fan to complete the smoke exhaust and heat dissipation effect, so that the service life and stability of the equipment can be effectively improved.

[0032] The whole working process is ended, and the contents not described in detail in the specification all belong to the prior art known by the professional technical personnel in the field.

[0033] It is to be understood that the phrases such as "first" and "second", and the like, can merely be used to distinguish one entity or action from another, without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0034] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the present application, which is defined by the appended claims and their equivalents.

Claims

1. A laser engraving and cutting machine with heat dissipation and smoke exhaust, comprising a base (1) and a back plate (2) fixed to the top of the base (1), and a lifting device (3) installed on the back of the back plate (2), wherein the movable end of the lifting device (3) is connected to a lifting platform (74) that can slide along the back plate (2), a table (714) is provided on the lifting platform (74), and a laser module (712) is installed above the table (714), characterized in that: The lifting platform (74) is fixed with a housing (7) that covers the laser module (712) inside, and a heat sink (72) that covers the lifting platform (74) is fixed at the bottom. A cover (6) that covers the housing (7) is slidably connected to the back plate (2). There is a gap between the housing (7) and the cover (6). The front of the back plate (2) is corrugated. At the same time, a pair of air extraction holes (76) are opened on the back of the housing (7). An exhaust fan (75) opposite to the air extraction hole (76) is also installed on the lifting platform (74). An exhaust port (51) is opened on the back plate (2), and an exhaust fan (5) that covers the exhaust port (51) is installed on the back.

2. The laser engraving and cutting machine with heat dissipation and smoke extraction as described in claim 1, characterized in that: The bottom of the platform (714) is fixed with a heat sink (716) opposite to the exhaust fan (75).

3. The laser engraving and cutting machine with heat dissipation and smoke extraction as described in claim 1, characterized in that: A pair of side wheels (78) that are attached to the cover (6) are installed on both sides of the outer shell (7).

4. A laser engraving and cutting machine with heat dissipation and smoke extraction as described in claim 3, characterized in that: The bottom of the platform (714) is equipped with a field lens (73) that passes through the heat sink (72), and the bottom of the lifting platform (74) is equipped with a visual camera (77) and two sets of red light indicators (79) distributed around the field lens (73).

5. A laser engraving and cutting machine with heat dissipation and smoke extraction as described in claim 4, characterized in that: The bottom of the lifting platform (74) is provided with two sets of grooves. Each groove is fixed with a clamping plate (710) by a pair of adjusting bolts (715). A round hole is provided between the clamping plate (710) and the corresponding groove. An installation ball (711) is engaged in the round hole. The top and bottom of the installation ball (711) are flat, and a stepped hole is provided at its eccentric position. The red light indicator (79) is placed in the corresponding stepped hole and locked and fixed by a set screw.

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