A turnover dust extraction structure of a laser pipe cutting machine

Abstract

The utility model provides a kind of turnover dust extraction structure of laser pipe cutting machine, it is related to laser cutting technical field, including dust exhaust air duct and turnover part;Dust exhaust air duct is set in the side wallboard of lathe bed body, and dust exhaust air duct side is provided with dust extraction air port;Turnover part includes baffle and driving part, baffle upper end is connected with dust extraction air port place by hinged joint hinge, so that dust extraction air port is in the normally closed state of baffle shielding, driving part end is provided with lifting rod, and lifting rod is connected with baffle by hinged link.The utility model structure is simple, and bed body side wallboard uses hollow structure to form dust exhaust air duct, and several fixed dust extraction air ports are set on side wallboard, dust extraction air port is provided with the baffle that can overturn, not only dust extraction air port area is big, and every dust extraction air port opening degree is controlled separately, can maximize improve dust extraction efficiency, suck more dust, and baffle is opened by simple lifting rotation, not easy to dust accumulation jam, and it is high in smooth operation, effectively guarantee the stable cutting of lathe.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting technology, and in particular, to a flip-type dust extraction structure for a laser tube cutting machine. Background Technology

[0002] The application of laser cutting machines (laser tube cutting machines) has developed rapidly in the domestic market in recent years, especially in the field of sheet metal cutting and processing. They have advantages such as high cutting accuracy, fast cutting speed, adaptability to various complex graphics, automatic layout, smooth cut, and low processing cost, and have well replaced punching machines, flame cutting and plasma cutting equipment.

[0003] When lasers cut sheet metal pipes, a large amount of high-temperature fumes are generated, which need to be discharged in time. Therefore, the machine bed of the laser cutting machine needs to be equipped with a dust extraction structure. At present, most of the laser cutting industry uses a follow-up dust extraction mechanism. For example, Chinese invention patent CN117428331A discloses a follow-up dust extraction device for the laser cutting machine head, which relates to the field of laser cutting equipment technology, including a laser cutting processing bed and a laser cutting mechanism. The laser cutting mechanism includes two support guide rails, which are respectively fixed to the front and rear top sides of the laser cutting processing bed by bolts. The aforementioned invention, through the design and installation of a follow-up dust extraction mechanism, integrates the laser cutting head with the dust collection hood, positioning the smoke inlet above the laser emitter. During laser cutting, a pressurized fan absorbs the generated smoke and dust, ensuring timely absorption of smoke and dust regardless of the laser cutting head's location. This prevents dust from adhering to the material surface during laser cutting, saving subsequent cleaning costs and time, and avoiding dust pollution of the laser cutting production environment. This not only improves production efficiency but also protects the health of production personnel. However, the follow-up dust extraction mechanism is a sliding structure, which is too precise and prone to dust accumulation or burn-out during laser cutting, preventing long-term normal operation. Furthermore, the sliding dust extraction structure has a small air vent, resulting in insufficient dust removal capacity.

[0004] To improve the stability and efficiency of the dust extraction structure, fixed dust extraction channels can be installed on the machine tool, with covers at the openings of these channels. This allows dust to be discharged from the channels when the covers are open. For example, Chinese Utility Model Patent CN217749844U discloses a dust extraction device for a laser cutting machine and a laser cutting machine, belonging to the field of laser cutting equipment. The technical solution is as follows: a dust extraction device for a laser cutting machine includes a number of flap valve assemblies and trigger elements. A flap is hinged at the air outlet of each flap valve assembly, and a flip-drive assembly is provided at one end of its hinge shaft. The flip-drive assembly includes a vertically arranged lifting rod, the lower end of which is connected to the hinge shaft. The trigger element can move along the arrangement direction of the flap valve assembly and press down the lifting rod, causing the flap to flip and lift around the hinge shaft. The beneficial effects of this utility model are that it adopts a mechanical structure to drive the dust removal flap valve, which eliminates the need for an electrical control system compared to a rotary cylinder or telescopic cylinder, reduces the failure rate, and reduces the work of troubleshooting and maintenance during later use. At the same time, the ingenious structure makes it easy to manufacture and use, and the absence of electrical components avoids system debugging and reduces equipment costs.

[0005] However, the above-mentioned dust removal device still has the following drawbacks: the flap is still driven to open by a sliding trigger, and its dust extraction is still essentially sliding dust extraction. This results in the air vent area that is opened at a single time during dust extraction being still very small, and the dust extraction volume is not large enough. Moreover, the structure of the trigger and the flip drive component is still too complex, and it is easy to get stuck due to excessive dust, resulting in poor smooth operation. There may be a risk that the flap cannot be opened, leading to high temperature dust damaging the machine tool.

[0006] Therefore, in order to solve the above problems, it is necessary for us to design a flip-type dust extraction structure for a laser tube cutting machine. Utility Model Content

[0007] The purpose of this invention is to provide a flip-type dust extraction structure for a laser tube cutting machine. The structure is simple, with the side wall panel of the bed adopting a hollow structure to form a dust extraction air duct. Several fixed dust extraction vents are opened on the side wall panel, and the dust extraction vents are equipped with flip-type baffles. Not only are the dust extraction vents large in area, but the opening degree of each dust extraction vent can be controlled independently, which can maximize the dust extraction efficiency and remove more dust. Moreover, the baffles can be opened by simple lifting and rotating, which is not easy to accumulate dust and get stuck. The operation is smooth and effectively ensures the stable cutting of the machine tool.

[0008] To achieve the above objectives, this utility model employs the following technical solution: A flip-type dust extraction structure for a laser tube cutting machine includes a dust extraction duct and a flipping section. The dust extraction duct is located within the side wall of the machine bed, and a dust extraction port is provided on the side of the dust extraction duct for communication with it. The flipping section includes a controllable flip-up baffle and a driving component for driving the baffle to rotate. The upper end of the baffle is connected to the dust extraction port via a hinge, so that the dust extraction port is in a normally closed state blocked by the baffle. A lifting rod is provided at the end of the driving component, and the lifting rod is connected to the baffle via a hinge. When the distance between the dust extraction vent and the crossbeam on the machine tool bed is not greater than the preset distance value, control the baffle at the dust extraction vent to rotate upward and open the dust extraction vent. The opening degree of the baffle at the dust extraction port is controlled by obtaining the distance between the dust extraction port and the crossbeam on the machine tool bed. When the distance between the dust extraction vent and the crossbeam on the machine tool bed is greater than the preset distance value and the temperature at the dust extraction vent is not higher than the preset temperature value, the baffle at the dust extraction vent is controlled to rotate downward to close the dust extraction vent.

[0009] As a preferred embodiment of this invention, the number of baffles is at least one.

[0010] As a preferred embodiment of this invention, the lifting rod is provided with a first hinge block for connecting with the hinge rod, and the baffle is provided with a second hinge block for connecting with the hinge rod.

[0011] As a preferred embodiment of this invention, the driving component is one of a drive motor, an electric cylinder, a hydraulic cylinder, and a pneumatic cylinder.

[0012] As a preferred embodiment of this utility model, the side wall panel includes an upper plate and a lower plate; the upper plate is provided with a crossbeam for supporting the laser cutting head, and the dust exhaust duct is located in the lower plate.

[0013] As a preferred embodiment of this utility model, the upper side of the upper plate is provided with a slide rail for facilitating the sliding of the crossbeam.

[0014] As a preferred embodiment of this invention, at least a portion of the lifting rod is located within the upper plate; and at least a portion of the baffle is located inside the dust exhaust duct.

[0015] As a preferred embodiment of this invention, a temperature sensor is provided at the dust extraction vent.

[0016] As a preferred embodiment of the present invention, the flipping part further includes a controller, and the temperature sensor and the driving component are both electrically connected to the controller.

[0017] As a preferred embodiment of this invention, a dust baffle is provided on the side of the dust extraction vent.

[0018] The beneficial effects of the flip-type dust extraction structure of the laser tube cutting machine of this utility model are as follows: the structure is simple, the side wall of the bed adopts a hollow structure to form a dust exhaust air duct, and several fixed dust extraction ports are opened on the side wall. The dust extraction ports are equipped with flip-type baffles. Not only is the dust extraction port area large, but the opening degree of each dust extraction port can be controlled independently, which can maximize the dust extraction efficiency and suck away more dust. Moreover, the baffles are opened by simple lifting and rotating, which is not easy to accumulate dust and get stuck. The operation is smooth and effectively ensures the stable cutting of the machine tool. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the flip-type dust extraction structure of a laser tube cutting machine according to the present invention. Figure 2 This is a schematic diagram of the flipping part when it is opened in one embodiment of the flipping dust extraction structure of a laser tube cutting machine according to the present invention. Figure 3 This is a schematic diagram of the flipping part when closed in one embodiment of the flipping dust extraction structure of a laser tube cutting machine according to this utility model. Detailed Implementation

[0020] The following are specific embodiments of the present invention, which further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0021] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement and steps of the modules and steps set forth in these embodiments do not limit the scope of the present invention.

[0022] At the same time, it should be understood that, for ease of description, the process shown in the attached diagram is not performed in isolation, but rather involves multiple steps that overlap.

[0023] In the description of this utility model, it should be noted that 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 product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0025] Techniques, methods, and systems known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and systems should be considered part of this utility model specification.

[0026] Example 1: As Figures 1 to 3 The illustration shown is merely one embodiment of this utility model. A flip-type dust extraction structure for a laser tube cutting machine includes a dust extraction duct 2 and a flipping part 1. The dust extraction duct 2 is disposed within the side wall plate 3 of the machine tool bed, and a dust extraction port 21 for communicating with the dust extraction duct 2 is provided on the side of the dust extraction duct 2. The flipping part 1 includes a controllable flip-up baffle 11 and a driving member 12 for driving the baffle 11 to rotate. The upper end of the baffle 11 is connected to the dust extraction port 21 through a hinged hinge 13, so that the dust extraction port 21 is in a normally closed state blocked by the baffle 11. A lifting rod 14 is provided at the end of the driving member 12, and the lifting rod 14 is connected to the baffle 11 through a hinged rod 15. In this utility model, the machine tool bed structure includes two side wall plates 3 and a connecting square tube for connecting the two side wall plates 3. The area between the two side wall plates 3 is the laser cutting area. The tube to be laser cut is set in the laser cutting area. A crossbeam is set on the upper side of the side wall plate 3, and a laser cutting head is set on the crossbeam. The crossbeam slides longitudinally on the side wall plate 3, and the laser cutting head also slides laterally on the crossbeam, thereby driving the laser cutting head to any position in the laser cutting area to perform laser cutting on the tube in the laser cutting area. The large amount of high-temperature smoke and dust generated during laser cutting is discharged through the dust exhaust duct 2 in the side wall plate 3 to avoid high-temperature deformation and damage to the entire machine tool bed.

[0027] Here, the side wall panel 3 has a hollow structure, forming a dust exhaust duct 2 inside. A suction fan or blower is installed inside the dust exhaust duct 2, allowing the fumes generated in the laser cutting area to be drawn into and discharged. Of course, a dust extraction port 21 connected to the dust exhaust duct 2 is provided on the side of the side wall panel 3 closest to the laser cutting area. High-temperature fumes reach the dust exhaust duct 2 through the dust extraction port 21. A flipping part 1 is provided at the dust extraction port 21. The flipping part 1 has a simple structure, including a controllable flipping baffle 11 and a drive mechanism for rotating the baffle 11. The upper end of the baffle 11 is connected to the dust extraction port 21 via a hinged hinge 13, meaning that the baffle 11 is rotatably mounted at the dust extraction port 21. When the baffle 11 hangs down naturally, it can completely cover the dust extraction port 21, which is normally closed. When the laser cutting head moves to the vicinity of the dust extraction port 21, it means that the high-temperature dust generation area has reached the vicinity of the dust extraction port 21. At this time, the drive component 12 is activated to drive the baffle 11 to flip upward, thereby opening the dust extraction port 21. At this time, the high-temperature dust can be sucked out from this dust extraction port 21.

[0028] Moreover, the opening method of the baffle 11 is very simple. The end of the driving component 12 is provided with a lifting rod 14, which is connected to the baffle 11 through a hinge rod 15. The driving component 12 drives the lifting rod 14 to rise and fall. When the lifting rod 14 rises, the hinge rod 15 also pulls the baffle 11 upward. When the baffle 11 hangs down naturally, the connection between the hinge rod 15 and the baffle 11 is located below the hinge hinge 13, so that the hinge rod 15 rises and the baffle 11 also flips around the hinge hinge 13. The bottom of the baffle 11 flips upward, and the dust extraction port 21 opens at this time.

[0029] Conversely, after the laser cutting head is removed, the drive unit 12 drives the lifting rod 14 to descend, and the baffle 11 naturally flips downward under the action of gravity, thereby covering the dust extraction vent 21, at which time the dust extraction vent 21 is closed.

[0030] Since the dust extraction vent 21 is directly installed on the side wall panel 3 of the machine bed, the dust extraction vent can have a larger area. Moreover, the opening and closing of each dust extraction vent 21 is independent, allowing multiple dust extraction vents 21 to be opened simultaneously to exhaust the high-temperature fumes from the laser cutting area, thus effectively improving dust extraction efficiency. In addition, the baffle 11 of the dust extraction vent 21 relies on simple lifting and flipping, which has a simple structure, is not easily damaged, ensures stable dust extraction of the machine tool, and prevents the machine tool from being deformed by high temperature, thus having stable laser cutting capabilities.

[0031] Example 2, still as Figures 1 to 3 As shown, this is only one embodiment of the present invention. Based on embodiment one, in the flip-type dust extraction structure of the laser tube cutting machine of the present invention, the number of baffles 11 is at least one.

[0032] This has two meanings: The first meaning is that it has at least one dust extraction vent 21, and each dust extraction vent 21 is equipped with a baffle 11, so that there are multiple baffles 11. The second meaning is that each dust extraction vent 21 is equipped with at least one baffle 11. When only one baffle 11 is provided at a dust extraction vent 21, a single baffle 11 can cover the entire dust extraction vent 21. When multiple baffles 11 are provided at a dust extraction vent 21, the multiple baffles 11 together cover the entire dust extraction vent 21. The multiple baffles 11 can be arranged vertically or horizontally.

[0033] When multiple baffles 11 are installed at a dust extraction vent 21, if the multiple baffles are installed vertically, they can form a structure similar to louvers; if the multiple baffles 11 are installed horizontally, they can be set into a double-opening or even triple-opening structure; the lifting and lowering of the multiple baffles 11 are controlled individually, that is, each baffle 11 can be opened at different times, and the opening area of ​​the dust extraction vent 21 can be controlled. When a baffle 11 is installed at a dust extraction vent 21, the lifting rod 14 can be raised to different heights by the drive component 12, thereby controlling the opening degree of the baffle 11 and the opening area of ​​the dust extraction vent 21.

[0034] Finally, the driving component 12 is one of a drive motor, an electric cylinder, a hydraulic cylinder, and a pneumatic cylinder.

[0035] Example 3, still as Figures 1 to 3 As shown, this is only one embodiment of the present utility model. Based on any of the above embodiments, in the flip-type dust extraction structure of the laser tube cutting machine of the present utility model, the lifting rod 14 is provided with a first hinge block 141 for connecting with the hinge rod 15, and the baffle 11 is provided with a second hinge block 111 for connecting with the hinge rod 15.

[0036] That is, the first hinge block 141 is fixedly connected to the lifting rod 14, and the second hinge block 111 is fixedly connected to the baffle 11; the upper end of the hinge rod 15 is connected to the lifting rod 14 through the first hinge block 141, and the lower end of the hinge rod 15 is hinged to the baffle 11 through the second hinge block 111. When the baffle 11 hangs down naturally, the second hinge block 111 is located below the connecting page 13.

[0037] At least a portion of the baffle 11 is located inside the dust exhaust duct 2. In fact, the baffle 11 is located on the side of the dust extraction port 21 away from the laser cutting area, and the baffle 11 is flipped open towards the inside of the dust exhaust duct 2, so that the baffle 11 will not invade the laser cutting area when it is flipped up.

[0038] In this utility model, a temperature sensor is provided at the dust extraction vent 21 to sense the temperature of the air drawn in by the dust extraction vent 21 in real time. When the temperature drops to a certain value, it indicates that there is no high-temperature smoke that needs to be discharged, and the baffle 11 can be lowered to close the dust extraction vent 21.

[0039] Of course, the flipping part 1 also includes a controller. The temperature sensor and the drive unit 12 are both electrically connected to the controller. The controller controls the drive unit 12 to work according to the current temperature and the position of the laser cutting area, thereby driving the dust extraction vent 21 to open and close.

[0040] Example 4, still as Figures 1 to 3 As shown, this is only one embodiment of the present invention. Based on any of the above embodiments, in the flip-type dust extraction structure of the laser tube cutting machine of the present invention, the side wall plate 3 includes an upper plate 31 and a lower plate 32; the upper plate 31 is provided with a crossbeam for supporting the laser cutting head, and the dust exhaust duct 2 is located inside the lower plate 32.

[0041] Ideally, dust exhaust ducts 2 and tilting sections 1 should be provided on the side wall panels 3 on both sides of the machine tool bed.

[0042] Of course, the upper plate 31 is provided with a slide rail 33 on its upper side to facilitate the sliding of the crossbeam.

[0043] It should be noted that at least a portion of the lifting rod 14 is located within the upper plate 31.

[0044] There are two possibilities here: The first possibility is that the drive component 12 is located inside the lower plate 32, that is, in the dust exhaust duct 2. In this case, since the temperature of the dust exhaust duct 2 is high, the lifting rod 14 needs to be stabilized and limited. At this time, the upper end of the lifting rod 14 extends into the upper plate 31, and the middle position of the lifting rod 14 is exactly located at the limit ring set at the intersection of the upper plate 31 and the lower plate 32 to limit it, ensuring that the lifting rod 14 can only move up and down simply. In this case, the drive component 12 and the lifting rod 14 need to be made of high temperature resistant components; or the dust exhaust duct 2 is provided with a high temperature resistant protective cover covering the drive component 12 to prevent the high temperature flue gas from damaging the drive component 12. The second possibility is that, in order to avoid damage to the drive component 12 due to high temperature in the dust exhaust duct 2, the drive component 12 is directly installed inside the upper plate 31. The lower end of the lifting rod 14 extends from the upper plate 31 to the lower plate 32 to connect with the hinge rod 15. Similarly, the middle position of the lifting rod 14 is located at the intersection of the upper plate 31 and the lower plate 32, where a limiting ring is set for limiting. In this way, the drive component 12 is located in a relatively low-temperature space and is not easily affected by high temperature.

[0045] Of course, a vent frame 23 is provided at the dust extraction vent 21. The window in the middle of the vent frame 23 is the opening area of ​​the dust extraction vent 21. The baffle 11 is connected to the junction hinge 13 at the vent frame 23. The vent frame 23 is a high temperature resistant component to prevent the drive component 12 from being damaged by heat (the drive component 12 is located inside the lower plate 32).

[0046] Finally, a dust baffle 22 is provided on the side of the dust extraction vent 21. The dust baffle 22 is located on the side of the dust extraction vent 21 away from the laser cutting area. The dust baffle 22 can prevent high-temperature fumes from flowing directly to the drive component 12 and damaging the drive component 12 (when the drive component 12 is located inside the lower plate 32). Secondly, it can limit the movement of the baffle 11 when it is lowered. It is best to set the baffle 11 slightly tilted. The further away from the dust extraction vent 21 it is, the larger the opening between the two dust baffles 22 is, so that the baffle 11 can fall between the two dust baffles 22 when it is lowered.

[0047] This utility model discloses a flip-type dust extraction structure for a laser tube cutting machine. Its structure is simple, with hollow sidewalls forming dust extraction ducts. Several fixed dust extraction vents are opened on the sidewalls, each equipped with a flip-type baffle. This design not only maximizes the dust extraction efficiency by allowing each vent to have a large area but also enables individual control of its opening. Furthermore, the baffles open easily with simple lifting and rotating, preventing dust accumulation and blockage, ensuring smooth operation and stable cutting performance.

[0048] This utility model is not limited to the specific embodiments described above, and various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made to the above embodiments based on the technical essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A tilting dust extraction structure for a laser tube cutting machine, characterized in that: It includes a dust exhaust duct (2) and a flipping part (1); the dust exhaust duct (2) is located in the side wall plate (3) of the machine tool bed, and the side of the dust exhaust duct (2) is provided with a dust extraction port (21) for communicating with the dust exhaust duct (2); the flipping part (1) includes a controllable flipping baffle (11) and a driving member (12) for driving the baffle (11) to rotate. The upper end of the baffle (11) is connected to the dust extraction port (21) through a hinged hinge (13), so that the dust extraction port (21) is in a normally closed state blocked by the baffle (11); the end of the driving member (12) is provided with a lifting rod (14), and the lifting rod (14) is connected to the baffle (11) through a hinged rod (15).

2. The flip-type dust extraction structure of a laser tube cutting machine according to claim 1, characterized in that: The number of baffles (11) is at least one.

3. The flip-type dust extraction structure of a laser tube cutting machine according to claim 1, characterized in that: The lifting rod (14) is provided with a first hinge block (141) for connecting with the hinge rod (15), and the baffle (11) is provided with a second hinge block (111) for connecting with the hinge rod (15).

4. The flip-type dust extraction structure of a laser tube cutting machine according to claim 1, characterized in that: The driving component (12) is one of a drive motor, an electric cylinder, a hydraulic cylinder, and a pneumatic cylinder.

5. The flip-type dust extraction structure of a laser tube cutting machine according to claim 1, characterized in that: The side wall panel (3) includes an upper panel (31) and a lower panel (32); the upper panel (31) is provided with a crossbeam for supporting the laser cutting head, and the dust exhaust duct (2) is located inside the lower panel (32).

6. The flip-type dust extraction structure of a laser tube cutting machine according to claim 5, characterized in that: The upper plate (31) is provided with a slide rail (33) on its upper side to facilitate the sliding of the crossbeam.

7. The flip-type dust extraction structure of a laser tube cutting machine according to claim 5, characterized in that: At least a portion of the lifting rod (14) is located inside the upper plate (31); at least a portion of the baffle (11) is located inside the dust exhaust duct (2).

8. The flip-type dust extraction structure of a laser tube cutting machine according to claim 1, characterized in that: A temperature sensor is installed at the dust extraction vent (21).

9. The flip-type dust extraction structure of a laser tube cutting machine according to claim 8, characterized in that: The flipping part (1) also includes a controller, and the temperature sensor and the drive unit (12) are both electrically connected to the controller.

10. The flip-type dust extraction structure of a laser tube cutting machine according to claim 1, characterized in that: A dust baffle (22) is provided on the side of the dust extraction vent (21).

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