A dust removal device for laser cutting silicon steel sheets

Abstract

The utility model relates to a kind of dust removal devices of laser cutting silicon steel sheet, belong to laser cutting technical field, including base, rack, shell and laser cutting head, the shell inside is provided with the linear module for adjusting laser cutting head, the sidewall of the base is provided with the lifting mechanism connected with the rack;Dust removal equipment is provided on the rack;Cooperative cleaning structure used in lifting mechanism is provided on the rack, and the cleaning structure includes cylinder body.The dust removal device of laser cutting silicon steel sheet, the airflow generated by piston, return spring and intercommunication component, realize the automatic cleaning of suction tube, without additional complex drive arrangement, reduce equipment cost and maintenance difficulty, while the pressure pipe in intercommunication component is composed of expansion pipe and throat pipe, airflow is generated using venturi effect, can effectively convert the air in cylinder body into airflow with large impact force, improve the cleaning effect of suction tube.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting technology, specifically a dust removal device for laser-cut silicon steel sheets. Background Technology

[0002] Currently, silicon steel sheets, as an important soft magnetic material, are widely used in motors, transformers, and other fields. Their processing quality directly affects the energy efficiency and reliability of electromagnetic devices. For the processing of silicon steel sheets, the industry mainly uses stamping technology, employing customized cemented carbide or high-speed steel dies in conjunction with a press to shape the material, supplemented by CNC wire cutting technology to achieve complex pattern processing. However, the stamping process has significant limitations: long die development cycles, high costs, difficulty in adapting to small-batch, multi-order needs, and repeated stamping leading to die wear can cause burr buildup and dimensional tolerance deviations, severely affecting the assembly accuracy of laminated iron cores. Therefore, laser cutting technology is used for the processing of some silicon steel sheets. Laser cutting is a processing method that uses a high-energy-density laser beam to irradiate the workpiece, causing the irradiated area to melt or vaporize, thereby achieving cutting. It has advantages such as high processing accuracy, good cut quality, high flexibility, and high degree of automation.

[0003] Laser cutting of silicon steel sheets generates a large amount of extremely fine, lightweight, and adhesive magnetic dust. Therefore, a dust collection function is required during the laser cutting process. Traditional dust collection devices have the following mechanical defects when dealing with this specific working condition, such as insufficient handling of special dust characteristics. Because the silicon steel sheet dust is magnetic, it is easy to be adsorbed on the inner wall of the equipment, pipes, and dust collection hood. Long-term accumulation will block the air duct, reduce suction power, and even affect the operation of the equipment. Therefore, a dust collection device for laser cutting silicon steel sheets is proposed to solve the problems mentioned above. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a dust removal device for laser-cut silicon steel sheets, which has advantages such as good dust removal effect and solves the problems mentioned in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A dust removal device for laser-cut silicon steel sheets includes a base, a frame, a housing, and a laser cutting head. The housing is equipped with a linear module for adjusting the laser cutting head, and the side wall of the base is equipped with a lifting mechanism connected to the frame.

[0007] The frame is equipped with a dust removal device, which includes a dust collection box and a suction pipe located outside the laser cutting head. A connecting pipe is installed between the dust collection box and the suction pipe, and a fan is installed on one side of the dust collection box.

[0008] The frame is equipped with a cleaning structure for use with the lifting mechanism. The cleaning structure includes a cylinder, inside which is a piston extending outward. A stop block is fixed to the bottom end of the piston, and a return spring is provided on the outer surface of the piston. A communication component is provided between the cylinder and the suction tube.

[0009] Furthermore, one side of the frame is fixed to the outer wall of the housing, and there are two frames, which are symmetrically distributed.

[0010] Furthermore, the linear module includes a drive motor fixed to the outer wall of the housing, a lead screw fixed to the output shaft of the drive motor and rotatably connected to the inside of the housing, a movable seat connected to the external thread of the lead screw, the movable seat being slidably connected to the inside of the housing, and the laser cutting head being mounted on the bottom side of the movable seat.

[0011] Furthermore, the lifting mechanism includes an L-shaped frame fixed to the outer wall of the base, and a telescopic electric cylinder is fixed to the outer wall of the L-shaped frame. The output end of the telescopic electric cylinder is fixed to the outer wall of the frame, and a slider that slides with the L-shaped frame is fixed to the inner side of the frame. There are two lifting mechanisms, and the two lifting mechanisms are arranged corresponding to the two frames.

[0012] Furthermore, the suction tube is ring-shaped, and a partition is detachably installed inside the dust collection box. The dust collection box is fixed to the top side of one of the frames.

[0013] Furthermore, the connecting component includes a connecting tube and a pressure tube. One end of the connecting tube is fixedly connected to the straw, and the other end is connected to the pressure tube. The pressure tube consists of an expansion tube and a throat tube.

[0014] Furthermore, the throat tube is fixedly connected to the other end of the connecting tube, and the end of the expansion tube away from the throat tube is fixedly connected to the cylinder.

[0015] Compared with the prior art, this utility model provides a dust removal device for laser-cut silicon steel sheets, which has the following beneficial effects:

[0016] 1. The dust removal device for laser-cut silicon steel sheets uses a suction tube arranged in a ring around the laser cutting head to absorb dust generated during the cutting process from all directions. This effectively reduces the spread of dust in the cutting area, ensures a clean cutting environment, improves cutting quality, and prevents dust from contaminating and damaging the surface of the silicon steel sheet. At the same time, the dust collection box has a removable partition for easy classification and cleaning of the collected dust, which improves the practicality and maintainability of the dust removal device.

[0017] 2. The dust removal device for laser-cut silicon steel sheets utilizes the force change of the contact block during the lifting and lowering of the frame. Through the airflow generated by the piston, return spring, and connecting component, the suction tube is automatically cleaned. There is no need to set up a complicated drive device, which reduces equipment cost and maintenance difficulty. At the same time, the pressure tube in the connecting component is composed of an expansion tube and a throat tube. It uses the Venturi effect to generate airflow, which can effectively transform the air in the cylinder into an airflow with greater impact force, thereby improving the cleaning effect on the suction tube. Attached Figure Description

[0018] Figure 1 This is a perspective view of the entire utility model;

[0019] Figure 2 This is a cross-sectional view of the casing of this utility model;

[0020] Figure 3 This is a cross-sectional view of the dust removal equipment and cleaning structure of this utility model;

[0021] Figure 4 This utility model Figure 3 A magnified structural diagram of structure A is shown.

[0022] In the diagram: 1. Base; 2. Frame; 3. Housing; 4. Laser cutting head; 5. Linear module; 51. Drive motor; 52. Lead screw; 53. Moving seat; 6. Lifting mechanism; 61. L-shaped frame; 62. Telescopic electric cylinder; 63. Slider; 7. Dust removal equipment; 71. Dust collection box; 72. Suction pipe; 73. Connecting pipe; 74. Fan; 75. Partition plate; 8. Cleaning structure; 81. Cylinder; 82. Piston; 83. Abutment block; 84. Return spring; 85. Connecting pipe; 86. Expansion pipe; 87. Throat. Detailed Implementation

[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 protection scope of the present utility model.

[0024] Please see Figures 1 to 4This embodiment discloses a dust removal device for laser-cut silicon steel sheets, comprising a base 1, a frame 2, a housing 3, and a laser cutting head 4. The housing 3 contains a linear module 5 for adjusting the laser cutting head 4. A lifting mechanism 6 connected to the frame 2 is mounted on the side wall of the base 1. Specifically, one side of the frame 2 is fixed to the outer wall of the housing 3, and there are two frames 2 symmetrically distributed. A processing table adapted to the linear module 5 can be installed on the base 1 for cutting the silicon steel sheets. The laser cutting head 4 is a conventional technology known to the public in the prior art; therefore, its specific structural composition and working principle will not be described in detail here.

[0025] The linear module 5 in this embodiment includes a drive motor 51 fixed to the outer wall of the housing 3. A lead screw 52, ​​rotatably connected to the inside of the housing 3, is fixed to the output shaft of the drive motor 51. A movable seat 53 is threadedly connected to the outside of the lead screw 52. The movable seat 53 is slidably connected to the inside of the housing 3. The laser cutting head 4 is mounted on the bottom side of the movable seat 53. It should be noted that a guide block is installed inside the housing 3 to guide the movable seat 53, enabling it to move linearly. In use, the drive motor 51 starts, and its output shaft drives the lead screw 52 to rotate inside the housing 3. Since the movable seat 53 is threadedly connected to the lead screw 52 and slidably connected to the inside of the housing 3, the rotation of the lead screw 52 causes the movable seat 53 to move linearly along the lead screw 52, ​​thereby moving the laser cutting head 4 mounted on the bottom side of the movable seat 53 to cut the silicon steel sheet.

[0026] In this embodiment, the lifting mechanism 6 includes an L-shaped frame 61 fixed to the outer wall of the base 1. A telescopic electric cylinder 62 is fixed to the outer wall of the L-shaped frame 61. The output end of the telescopic electric cylinder 62 is fixed to the outer wall of the frame 2. A slider 63 that slides with the L-shaped frame 61 is fixed to the inner side of the frame 2. There are two lifting mechanisms 6, and the two lifting mechanisms 6 are correspondingly arranged with the two frames 2, which can realize the smooth lifting of the frame 2.

[0027] To improve the cutting environment, a dust removal device 7 is installed on the frame 2. The dust removal device 7 includes a dust collection box 71 and a suction pipe 72 located outside the laser cutting head 4. A connecting pipe 73 is installed between the dust collection box 71 and the suction pipe 72. A fan 74 is installed on one side of the dust collection box 71. It should be noted that the suction pipe 72 is ring-shaped, and a partition 75 is detachably installed inside the dust collection box 71. The dust collection box 71 is fixed to the top side of one of the frames 2. The connecting pipe 73 can be a flexible hose, and multiple sets of partitions 75 can be installed. To facilitate cleaning of the partitions 75, a cover plate is bolted to the top side of the dust collection box 71. Specifically, when the fan 74 is started, a negative pressure is generated inside the dust collection box 71. The suction pipe 72, which is ring-shaped and surrounds the outside of the laser cutting head 4, sucks in the dust generated during the cutting process and then enters the dust collection box 71 through the connecting pipe 73. The partition 75 can block and separate the dust entering the dust collection box 71, facilitating subsequent cleaning.

[0028] To improve the suction effect, the frame 2 is equipped with a cleaning structure 8 that works in conjunction with the lifting mechanism 6. The cleaning structure 8 includes a cylinder 81, inside which is a piston 82 extending outward. A stop block 83 is fixed to the bottom end of the piston 82, and a return spring 84 is provided on the outer surface of the piston 82. A connecting component is provided between the cylinder 81 and the suction pipe 72. Check valves are provided on both the cylinder 81 and the piston 82. The piston 82 is T-shaped. The top side of the return spring 84 is fixed to the bottom side of the frame 2. The cylinder 81 is fixed to the upper surface of the frame 2 by bolts, and the piston 82 penetrates the interior of the frame 2.

[0029] Specifically, the connecting assembly includes a connecting pipe 85 and a pressure pipe. One end of the connecting pipe 85 is fixedly connected to the suction pipe 72, and the other end is connected to the pressure pipe, which consists of an expansion pipe 86 and a throat 87. The throat 87 is fixedly connected to the other end of the connecting pipe 85, and the end of the expansion pipe 86 away from the throat 87 is fixedly connected to the cylinder 81. The cleaning structure 8, through the lifting and lowering of the frame 2, causes the abutment block 83 to be subjected to force, pushing the piston 82 to move inside the cylinder 81. When the piston 82 moves into the cylinder 81, the air inside the cylinder 81 is compressed, creating a pressure change through the expansion pipe 86, the throat 87, and the connecting pipe 85. Based on the Venturi effect, the fluid velocity increases and the pressure decreases when it flows through the throat 87, thereby generating a greater suction force at the connection between the connecting tube 85 and the suction tube 72. This further sucks out any dust that may remain in the suction tube 72, or blows the inner wall of the suction tube 72 to prevent dust from clogging it. This significantly enhances the overall dust collection effect and ensures that the dust generated during the cutting process can be collected more thoroughly.

[0030] The connecting pipe 85 can also be fitted with an infusion tube on its outer wall. Under the action of airflow, the liquid can be sprayed more evenly onto the inner wall of the suction tube 72, deeply cleaning the suction tube 72 and removing some stubborn dust deposits. Simultaneously, when disinfection or other treatments are needed for the suction tube 72, the corresponding agents can be delivered through the infusion tube, improving the functionality and ease of maintenance of the device. It should be noted that the connecting pipe 85 consists of a rigid pipe and a flexible pipe. The rigid pipe section ensures the stability and sealing of the connection, accurately guiding the airflow from the pressure pipe into the suction tube 72; the flexible pipe section increases the flexibility of the connecting pipe 85, facilitating bending and adjustment according to the layout and space requirements of the equipment during actual installation. This allows the entire cleaning structure 8 to be more easily connected to the suction tube 72 and the pressure pipe, improving the installation efficiency and adaptability of the device.

[0031] The working principle of the above embodiments is as follows:

[0032] First, the drive motor 51 starts, and its output shaft drives the lead screw 52 to rotate inside the housing 3. Since the moving seat 53 is threadedly connected to the lead screw 52 and slidably connected to the inside of the housing 3, the rotation of the lead screw 52 will cause the moving seat 53 to move linearly along the lead screw 52, ​​thereby driving the laser cutting head 4 installed on the bottom side of the moving seat 53 to move and realize the cutting of silicon steel sheet.

[0033] Next, the fan 74 starts, creating negative pressure in the dust collection box 71. The suction pipe 72, in a ring shape, surrounds the outside of the laser cutting head 4. Dust generated during the cutting process is sucked in by the suction pipe 72 and then enters the dust collection box 71 through the connecting pipe 73. The partition 75 can block and separate the dust entering the dust collection box 71, facilitating subsequent cleaning. When it is necessary to clean the suction pipe 72, the telescopic electric cylinder 62 is activated, and its output end pushes the frame 2 to slide along the L-shaped frame 61, realizing the lifting and lowering of the frame 2. During the lifting and lowering of the frame 2, due to the relative position of the cylinder 81 and the frame 2... When the frame 2 is moved to the appropriate position, the abutment block 83 will contact and be squeezed by the corresponding external structure, pushing the piston 82 to move into the cylinder 81. The return spring 84 is compressed. At the same time, the air inside the cylinder 81 is compressed, and pressure changes are formed through the expansion tube 86, throat tube 87 and connecting tube 85, generating airflow. The airflow enters the suction tube 72 and blows and cleans the inside of the suction tube 72, blowing out the dust attached to the inner wall of the suction tube 72. When the abutment block 83 is no longer squeezed, the return spring 84 returns to its deformation, pushing the piston 82 to return to its original position, preparing for the next cleaning.

[0034] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0035] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust removal device for laser-cut silicon steel sheets, comprising a base (1), a frame (2), a housing (3), and a laser cutting head (4), characterized in that: The housing (3) is provided with a linear module (5) for adjusting the laser cutting head (4), and the side wall of the base (1) is provided with a lifting mechanism (6) connected to the frame (2). The frame (2) is equipped with a dust removal device (7), which includes a dust collection box (71) and a suction pipe (72) located outside the laser cutting head (4). A connecting pipe (73) is installed between the dust collection box (71) and the suction pipe (72), and a fan (74) is installed on one side of the dust collection box (71). The frame (2) is provided with a cleaning structure (8) for use with the lifting mechanism (6). The cleaning structure (8) includes a cylinder (81). A piston (82) extending outward is provided inside the cylinder (81). An abutment block (83) is fixed at the bottom end of the piston (82). A return spring (84) is provided on the outer surface of the piston (82). A communication component is provided between the cylinder (81) and the suction tube (72).

2. The dust removal device for laser-cut silicon steel sheets according to claim 1, characterized in that: One side of the frame (2) is fixed to the outer wall of the housing (3), and there are two frames (2) with the two frames (2) symmetrically distributed.

3. The dust removal device for laser-cut silicon steel sheets according to claim 1, characterized in that: The linear module (5) includes a drive motor (51) fixed on the outer wall of the housing (3). A lead screw (52) rotatably connected to the inside of the housing (3) is fixed on the output shaft of the drive motor (51). A movable seat (53) is threadedly connected to the outside of the lead screw (52). The movable seat (53) is slidably connected to the inside of the housing (3). The laser cutting head (4) is installed on the bottom side of the movable seat (53).

4. The dust removal device for laser-cut silicon steel sheets according to claim 2, characterized in that: The lifting mechanism (6) includes an L-shaped frame (61) fixed to the outer wall of the base (1). A telescopic electric cylinder (62) is fixed to the outer wall of the L-shaped frame (61). The output end of the telescopic electric cylinder (62) is fixed to the outer wall of the frame (2). A slider (63) that slides with the L-shaped frame (61) is fixed to the inner side of the frame (2). There are two lifting mechanisms (6), and the two lifting mechanisms (6) are arranged corresponding to the two frames (2).

5. The dust removal device for laser-cut silicon steel sheets according to claim 2, characterized in that: The suction tube (72) is ring-shaped, and the dust collection box (71) has a detachable partition (75) inside. The dust collection box (71) is fixed to the top side of one of the frames (2).

6. The dust removal device for laser-cut silicon steel sheets according to claim 1, characterized in that: The connecting component includes a connecting tube (85) and a pressure tube. One end of the connecting tube (85) is fixedly connected to the straw (72), and the other end is connected to the pressure tube. The pressure tube is composed of an expansion tube (86) and a throat tube (87).

7. The dust removal device for laser-cut silicon steel sheets according to claim 6, characterized in that: The throat (87) is fixedly connected to the other end of the connecting pipe (85), and the end of the expansion pipe (86) away from the throat (87) is fixedly connected to the cylinder (81).

Images