Laser cutting mechanism for electronic paper

Abstract

The utility model relates to the technical field of electronic paper processing, and in particular to a laser cutting mechanism for electronic paper, comprising a support frame, the support frame being provided with a first conveying module for conveying electronic paper and a second conveying module connected to the first conveying module, the support frame being further provided with a positioning component for positioning the electronic paper placed on the second conveying module; and also comprising a first fixing frame, and the first fixing frame being provided with a plurality of laser cutting devices for cutting electronic paper, the support frame being provided with a feeding component for driving the electronic paper to move to achieve cutting, and a first conveying component for conveying the positioned electronic paper to the feeding component. The electronic paper is first positioned at a designated position, and then the electronic paper is conveyed to the feeding component by the first conveying component in a conveying manner, so as to avoid wrinkles on the electronic paper, ensure the cutting quality, and improve the cutting accuracy and processing efficiency of the electronic paper.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic paper processing, in particular to a laser cutting mechanism for electronic paper. Background Art

[0002] With the development of electronic technology, people have proposed the concept of electronic paper, also known as digital paper. It is an ultra-thin and ultra-light display screen, which can be understood as "a display that is as thin as paper, soft and erasable". When cutting electronic paper, a specific laser cutting device is required for cutting. The existing cutting device is as follows:

[0003] A Chinese patent document with publication number CN113263270A discloses a laser cutting machine, which specifically discloses: it includes a base plate, a feeding mechanism, a clamping mechanism, a dust suction mechanism, a cutting mechanism and a cooling mechanism, wherein the clamping mechanism is installed at the lower right end of the base plate, the cutting mechanism is installed at the right upper end of the base plate, the dust suction mechanism is installed on the cutting mechanism, the feeding mechanism is installed at the left end of the base plate, and the cooling mechanism is installed at the right end of the base plate. The laser cutting machine has the following difficulties when cutting products: First, the laser cutting machine in traditional industrial manufacturing cannot automatically locate the material to be cut, and the material needs to be manually moved to perform the cutting operation, which makes the cutting accuracy of the material poor; second, the existing laser cutting cannot cool the cut product in time, and the residual heat of the laser will expand the cutting mouth, resulting in a low yield rate, affecting the subsequent use of the product.

[0004] As can be seen from the above, the existing laser cutting machine pushes the material (electronic paper) to the specified cutting position through the feeding mechanism, and then performs cutting processing through the cutting mechanism. In the process of pushing the material, positioning can be performed to improve the cutting accuracy. In addition, during the cutting process, the dust collection mechanism and the cooling mechanism can also absorb the smoke and cool the material (electronic paper), thereby ensuring the yield rate of the electronic paper. However, the electronic paper is thin and light, and in the process of pushing the electronic paper to the cutting position, the electronic paper is prone to wrinkles, thereby affecting the subsequent cutting effect. Therefore, a laser cutting mechanism for electronic paper is provided to solve the above technical problems. Utility Model Content

[0005] The utility model aims to provide a laser cutting mechanism for electronic paper in view of the deficiencies in the prior art, so as to solve the technical problem that the electronic paper is prone to wrinkles when the cutting machine pushes the electronic paper to the cutting position.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A laser cutting mechanism for electronic paper includes a support frame, the support frame is provided with a first conveying module for conveying the electronic paper and a second conveying module connected to the first conveying module, and the support frame is also provided with a positioning component for positioning the electronic paper placed on the second conveying module;

[0008] It also includes a first fixing frame, and the first fixing frame is equipped with a plurality of laser cutting devices for cutting electronic paper. The support frame is provided with a feeding assembly for driving the electronic paper to move to achieve cutting and a first transport assembly for transporting the positioned electronic paper to the feeding assembly.

[0009] Furthermore, a plurality of first linear modules are arranged on the first fixed frame, and a plurality of laser cutting devices are respectively arranged on different first linear modules. The length direction of the first linear modules is arranged horizontally and perpendicular to the moving direction of the feeding assembly to adjust the position of the laser cutting device.

[0010] Furthermore, a pressing component for pressing the electronic paper placed on the feeding component is arranged on the support frame, and the pressing component is placed beside the feeding component.

[0011] Furthermore, a smoke collecting assembly is arranged on the support frame to absorb smoke generated during cutting.

[0012] Furthermore, the positioning assembly includes a pair of second sliding frames arranged on the support frame and capable of moving closer to and away from each other. The second sliding frames are respectively placed on both sides of the conveying track of the second conveying module, and second push plates that can move up and down are provided on the second sliding frames on both sides. The support frame is equipped with a second driving member for driving the first sliding frames on both sides to move closer to and away from each other.

[0013] Furthermore, the positioning assembly also includes a pair of first sliding frames arranged on the support frame and capable of moving closer to and away from each other. The first sliding frames are respectively placed at the initial end and the end of the conveying track of the second conveying module. The first sliding frames on both sides are provided with first push plates that can move up and down; and a first driving member for driving the first sliding frames on both sides to move closer to and away from each other is installed on the support frame.

[0014] Furthermore, the first transport assembly includes a second fixed frame and a second linear module arranged on the second fixed frame, the second linear module is provided with a movable seat, the movable seat is provided with a lifting plate that can move up and down, and a suction cup assembly for sucking the electronic paper is provided on the lifting plate.

[0015] Furthermore, the pressing assembly includes a fixed base arranged on the support frame, the fixed base is provided with a movable plate that can move in the direction of approaching and moving away from the feeding assembly, and a cylinder with a telescopic rod arranged upward is installed on the movable plate, a pressing piece for pressing the electronic paper is fixed on the end of the telescopic rod of the cylinder, and an electric push rod for driving the movable plate to move is provided on the fixed base.

[0016] Furthermore, the feeding assembly includes a fixed plate arranged on a support frame and placed below the laser cutting device, a feeding table for transporting the electronic paper passing below the laser cutting device is slidably provided on the fixed plate; a screw rod whose axial direction is consistent with the moving direction of the feeding table is rotatably provided on the fixed plate, a stepper motor whose output shaft is connected to one end of the screw rod is also installed on the fixed plate, and a connecting block threadedly connected to the screw rod is fixedly provided at the bottom of the feeding table.

[0017] Furthermore, the smoking component includes a bottom smoking pipe and a top smoking pipe, an air suction pump is installed on the support frame, and one end of the bottom smoking pipe is connected to the air suction pump, and the other end is placed under the feeding table; a smoking sheet metal part for gathering smoke is provided at the end where the laser cutting device emits the laser, and one end of the top smoking pipe is connected to the air suction pump, and the other end is connected to the smoking sheet metal part.

[0018] The beneficial effects of the utility model are as follows: when the electronic paper needs to be processed, the first conveying module is operated to convey the electronic paper to the second conveying module, and the electronic paper placed on the second conveying module is positioned at a designated position by a positioning component, and then the first transporting component is operated to transport the electronic paper to the feeding component, and finally the feeding component and the laser cutting device are operated at the same time, so as to drive the electronic paper to pass under the laser cutting device, and the laser emitted by the laser cutting device is used to cut the passing electronic paper, so as to cut the electronic paper into two or more pieces; the electronic paper is first positioned at a designated position, and then the electronic paper is transported to the feeding component by the first transporting component, so as to avoid wrinkles on the electronic paper, ensure the cutting quality, and improve the cutting accuracy and processing efficiency of the electronic paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0020] Figure 2 It is a schematic structural diagram of the first conveying module and the second conveying module of the utility model.

[0021] Figure 3 It is a structural schematic diagram of the positioning component of the utility model.

[0022] Figure 4 It is a structural schematic diagram of the first transport component and the pressing component of the utility model.

[0023] Figure 5 It is a structural schematic diagram of the feeding assembly of the utility model.

[0024] Figure 6 It is a structural schematic diagram of the smoking assembly of the utility model.

[0025] Figure 7 It is a structural schematic diagram of the smoking sheet metal component of the utility model.

[0026] Reference numerals include:

[0027] 201, support frame; 202, first conveying module; 203, second conveying module; 204, positioning assembly; 2041, first sliding frame; 2042, first push plate; 2043, first driving member; 2044, second sliding frame; 2045, second push plate; 2046, second driving member; 205, feeding assembly; 2051, fixed plate; 2052, feeding table; 2053, lead screw; 2054, stepping motor; 2055, connecting block; 206, first fixed frame; 207, laser cutting device; 208, first linear module; 209, first handling assembly; 20 91. Second fixed frame; 2092. Second linear module; 2093. Movable seat; 2094. Lifting plate; 2095. Suction cup assembly; 210. Second transport assembly; 211. Pressing assembly; 2111. Fixed seat; 2112. Cylinder; 2113. Pressing piece; 2114. Movable plate; 2115. Electric push rod; 212. Smoking assembly; 2121. Suction pump; 2122. Bottom smoking pipe; 2123. Fixed block; 2124. Smoking sheet metal; 21241. Smoking hole; 21242. Chamber; 21243. Guide plate; 2125. Top smoking pipe. DETAILED DESCRIPTION

[0028] The laser cutting mechanism of an electronic paper of the present invention is described in detail below with reference to the accompanying drawings.

[0029] like Figure 1-2As shown, an embodiment of a laser cutting mechanism for electronic paper of the utility model includes a support frame 201, on which a first conveying module 202 for conveying electronic paper and a second conveying module 203 connected to the first conveying module 202 are provided. The electronic paper in the tray is taken out by an electronic paper taking system (not shown in the drawing) disposed next to the laser cutting mechanism to be transported to the first conveying module 202, and then the first conveying module 202 and the second conveying module 203 are operated simultaneously to convey the electronic paper on the first conveying module 202 to the second conveying module 203, and during the conveying process, the electronic paper is scanned and identified; in addition, a positioning component 204 for positioning the electronic paper placed on the second conveying module 203 is provided on the support frame 201, and under the action of the positioning component 204, the accuracy of subsequent electronic paper cutting is improved. Among them, a first fixing frame 206 is provided on the support frame 201, and a plurality of laser cutting devices 207 for cutting electronic paper are installed on the first fixing frame 206. A feeding component 205 for driving the electronic paper to move to achieve cutting and a first conveying component 209 for conveying the positioned electronic paper to the feeding component 205 are also provided on the support frame 201, and the feeding component 205 is placed under the laser cutting device 207; after the electronic paper placed on the second conveying module 203 is positioned by the positioning component 204, the first conveying component 209 is operated to convey the electronic paper to the feeding component 205, and then the feeding component 205 and the laser cutting device 207 are operated at the same time, so as to drive the electronic paper to pass under the laser cutting device 207, and the laser emitted by the laser cutting device 207 is used to cut the passing electronic paper, so as to cut the electronic paper into two or more pieces. In order to adjust the cutting size, a plurality of first linear modules 208 are arranged on the first fixed frame 206, and a plurality of laser cutting devices 207 are respectively arranged on different first linear modules 208. The length direction of the first linear modules 208 is arranged horizontally and perpendicular to the moving direction of the feeding component 205. By operating the first linear modules 208, the spacing between the plurality of laser cutting devices 207 or the position of a single laser cutting device 207 can be adjusted, so that electronic papers of different sizes can be cut according to needs.

[0030] In addition, a second conveying assembly 210 is provided on the support frame 201 and is placed at the end of the feeding assembly 205. When the electronic paper is cut, the second conveying assembly 210 is operated to transport the electronic paper cut into multiple pieces to a subsequent power-on detection mechanism (not shown in the drawing) to detect whether the electronic paper is qualified. In addition, after the positioned electronic paper is transported to the feeding component 205 by the first transport component 209, when the first transport component 209 is separated from the electronic paper, the electronic paper placed on the feeding component 205 may be offset due to the traction of the airflow (the electronic paper is relatively thin). In order to prevent the above situation, a pressing component 211 for pressing the electronic paper placed on the feeding component 205 is provided on the support frame 201, and the pressing component 211 is placed next to the feeding component 205; after the first transport component 209 transports the electronic paper to the feeding component 205, before the first transport component 209 is separated from the electronic paper, the pressing component 211 is first operated to press the electronic paper, and then the first transport component 209 is operated to separate from the electronic paper, so that the electronic paper is always in the specified position and will not be offset. After separation, the pressing component 211 is operated to release the electronic paper, and the feeding component 205 can be operated for cutting, which further improves the cutting accuracy of the electronic paper. Additionally, during the process of cutting the electronic paper, the laser cutting device 207 will generate smoke and dust, thereby contaminating the electronic paper. In order to ensure the cutting quality of the electronic paper, a smoking component 212 is also provided on the support frame 201 to absorb the smoke and dust generated during the cutting process, thereby improving the processing efficiency of the electronic paper.

[0031] like Figure 3As shown, the positioning component 204 includes a pair of first sliding frames 2041 arranged on the support frame 201 and capable of moving toward and away from each other, and the first sliding frames 2041 are respectively placed at the initial end and the end of the conveying track of the second conveying module 203, wherein the first sliding frames 2041 on both sides are provided with first push plates 2042 that can move up and down; after the electronic paper is conveyed to the specified position by running the second conveying module 203, the first push plates 2042 on both sides are driven to move upward to move to the two sides of the electronic paper, and then the first sliding frames 2041 on both sides are controlled to move back and forth to move toward and away from each other to move the electronic paper to the specified position; in order to enable the first sliding frames 2041 to automatically move toward and away from each other, a first driving member 2043 for driving the first sliding frames 2041 on both sides is installed on the support frame 201. In addition, a pair of second sliding frames 2044 that can move closer to and away from each other are also provided on the support frame 201. The second sliding frames 2044 are respectively placed on both sides of the conveying track of the second conveying module 203, and second push plates 2045 that can move up and down are provided on the second sliding frames 2044 on both sides, and the support frame 201 is equipped with a second driving member 2046 for driving the first sliding frames 2041 on both sides to move closer to and away from each other; when the electronic paper is conveyed to the specified position by operating the second conveying module 203, the first push plate 2042 and the second push plate 2045 are driven to move upward at the same time, so that the first push plate 2042 and the second push plate 2045 are placed on the side of the electronic paper, and then the first driving member 2043 and the second driving member 2046 are operated at the same time, and the first push plates 2042 on both sides reciprocate in the direction of approaching and moving away from each other, and the second push plates 2045 on both sides reciprocate in the direction of approaching and moving away from each other, so as to shoot the electronic paper to the specified position, thereby realizing automatic positioning of the electronic paper.

[0032] like Figure 4 As shown, the first transport component 209 includes a second fixed frame 2091 and a second linear module 2092 arranged on the second fixed frame 2091, and a movable seat 2093 is arranged on the second linear module 2092, and the movable seat 2093 is driven to move back and forth by running the second linear module 2092; a lifting plate 2094 that can move up and down is provided on the movable seat 2093, and a suction cup component 2095 for sucking the electronic paper is provided on the lifting plate 2094. Under the action of the lifting plate 2094, the movable seat 2093 moves up and down, so as to suck the electronic paper placed on the second conveying module 203, and then cooperates with the second linear module 2092 to drive the suction cup component 2095 to move horizontally along the transport track, so as to transport the electronic paper to the top of the feeding component 205, and finally drives the lifting plate 2094 to move downward to place the electronic paper on the feeding component 205.

[0033] The first conveying component 209 and the second conveying component 210 have the same structure and operate in the same manner. The first conveying component 209 is used to convey the electronic paper positioned on the second conveying module 203 to the feeding component 205, and the second conveying component 210 is used to convey the electronic paper that has been laser-cut and placed on the second conveying module 203 to the subsequent power-on detection mechanism for detection and processing.

[0034] Furthermore, the pressing component 211 includes a fixed base 2111 arranged on the support frame 201, and a movable plate 2114 that can move in directions close to and away from the feeding component 205 is provided on the fixed base 2111, and a cylinder 2112 with a telescopic rod arranged upward is installed on the movable plate 2114, a pressing piece 2113 for pressing the electronic paper is fixedly provided on the end of the telescopic rod of the cylinder 2112, and an electric push rod 2115 for driving the movable plate 2114 to move is provided on the fixed base 2111. The initial state of the cylinder 2112 is the extended state. After the first transport component 209 transports the electronic paper to the feeding component 205, before the first transport component 209 is separated from the electronic paper, the electric push rod 2115 is first operated to push the movable plate 2114 toward the direction close to the feeding component 205. When it moves to the pressing piece 2113 placed above the electronic paper, the cylinder 2112 is operated again, and the telescopic rod is contracted to drive the pressing piece 2113 to move downward to press the electronic paper, and then the first transport component 209 is operated to separate from the electronic paper, so that the electronic paper is always in the specified position and will not be offset.

[0035] like Figure 5 As shown, the feeding assembly 205 includes a fixed plate 2051 arranged on the support frame 201 and placed under the laser cutting device 207. A feeding table 2052 for conveying the electronic paper passing under the laser cutting device 207 is slidably provided on the fixed plate 2051. After the electronic paper is transported to the fixed plate 2051 by the first transport assembly 209, the fixed plate 2051 is driven to move to pass under the laser cutting device 207, and cooperate with the laser cutting device 207 to realize the cutting process of the electronic paper. In order to drive the fixed plate 2051 to move automatically, a screw rod 2053 is rotatably provided on the fixed plate 2051, and the axial direction is consistent with the moving direction of the feeding platform 2052. A stepper motor 2054 whose output shaft is connected to one end of the screw rod 2053 is also installed on the fixed plate 2051. The screw rod 2053 is driven to rotate by starting the stepper motor 2054. In addition, a connecting block 2055 is fixedly provided at the bottom of the feeding platform 2052 and is threadedly connected to the screw rod 2053. When the stepper motor 2054 drives the screw rod 2053 to rotate, the feeding platform 2052 can be driven to move on the fixed plate 2051 through the connecting block 2055, so as to transport the electronic paper to pass under the laser cutting device 207 for cutting.

[0036] like Figure 6 As shown, the smoking component 212 includes a bottom smoking pipe 2122 and a top smoking pipe 2125, and an air suction pump 2121 is installed on the support frame 201, and one end of the bottom smoking pipe 2122 is connected to the air suction pump 2121, and the other end is placed under the feeding platform 2052 and fixed on the support frame 201 through a fixing block 2123. After the air suction pump 2121 is started, the bottom smoking pipe 2122 is used to absorb the smoke and dust floating downward; in addition, a smoking sheet metal part 2124 for gathering smoke is provided at the end of the laser cutting device 207 where the laser is emitted, and one end of the top smoking pipe 2125 is connected to the air suction pump 2121, and the other end is connected to the smoking sheet metal part 2124 to absorb the smoke and dust floating upward. When the electronic paper is cut, smoke and dust will be generated at the cutting place of the electronic paper. By starting the suction pump 2121, the bottom suction pipe 2122 and the top suction pipe 2125 generate suction, and the smoke and dust at the cutting place are sucked through the bottom suction pipe 2122 and the top suction pipe 2125 to prevent the smoke and dust from contaminating the electronic paper.

[0037] like Figure 7 As shown, a chamber 21242 is provided inside the smoking sheet metal 2124, and the top smoking pipe 2125 is connected to the chamber 21242. A smoking hole 21241 is provided at the bottom of the smoking sheet metal 2124, and the laser cutting device 207 emits laser light through the smoking hole 21241; the suction pump 2121 is started to generate suction force in the bottom smoking pipe 2122 and the top smoking pipe 2125, and the smoke is sucked away by the top smoking pipe 212 through the smoking hole 21241. In addition, an opening is provided on the side of the smoking sheet metal 2124, and a guide plate 21243 is provided at the opening to direct the suction force downward. The guide plate 21243 guides the airflow, so that the side opening of the smoking sheet metal 2124 can also absorb smoke, and the smoking efficiency is improved under the joint action of the smoking hole 21241. Furthermore, the position of the guide plate 21243 can be adjusted according to the size of the smoke to adjust the size of the opening to absorb different amounts of smoke and dust.

[0038] In summary, it can be seen that the utility model has the above-mentioned excellent characteristics, which can enhance the performance unprecedented in the prior art and become a product with great practical value.

[0039] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A laser cutting mechanism for electronic paper, characterized in that: The invention comprises a support frame (201), wherein the support frame (201) is provided with a first conveying module (202) for conveying electronic paper and a second conveying module (203) connected to the first conveying module (202), and the support frame (201) is also provided with a positioning component (204) for positioning the electronic paper placed on the second conveying module (203); The invention also comprises a first fixing frame (206), and a plurality of laser cutting devices (207) for cutting the electronic paper are installed on the first fixing frame (206); a feeding assembly (205) for driving the electronic paper to move so as to achieve cutting, and a first transport assembly (209) for transporting the positioned electronic paper to the feeding assembly (205) are provided on the supporting frame (201).

2. The laser cutting mechanism of electronic paper according to claim 1, characterized in that: A plurality of first linear modules (208) are arranged on the first fixed frame (206), and a plurality of laser cutting devices (207) are respectively arranged on different first linear modules (208). The length direction of the first linear modules (208) is arranged horizontally and is perpendicular to the moving direction of the feeding component (205) to adjust the position of the laser cutting device (207).

3. The laser cutting mechanism of electronic paper according to claim 1, characterized in that: A pressing component (211) for pressing the electronic paper placed on the feeding component (205) is arranged on the support frame (201), and the pressing component (211) is placed beside the feeding component (205).

4. The laser cutting mechanism of electronic paper according to claim 1, characterized in that: A smoking assembly (212) is arranged on the support frame (201) to absorb smoke generated during cutting.

5. The laser cutting mechanism of electronic paper according to claim 1, characterized in that: The positioning assembly (204) includes a pair of second sliding frames (2044) arranged on the support frame (201) and capable of moving toward and away from each other. The second sliding frames (2044) are respectively placed on both sides of the conveying track of the second conveying module (203), and second push plates (2045) that can move up and down are provided on the second sliding frames (2044) on both sides. The support frame (201) is equipped with a second driving member (2046) for driving the first sliding frames (2041) on both sides to move toward and away from each other.

6. The laser cutting mechanism of electronic paper according to claim 5, characterized in that: The positioning assembly (204) further comprises a pair of first sliding frames (2041) arranged on the support frame (201) and capable of moving toward and away from each other. The first sliding frames (2041) are respectively arranged at the initial end and the final end of the conveying track of the second conveying module (203). The first sliding frames (2041) on both sides are provided with first push plates (2042) capable of moving up and down. The support frame (201) is provided with a first driving member (2043) for driving the first sliding frames (2041) on both sides to move toward and away from each other.

7. The laser cutting mechanism of electronic paper according to claim 1, characterized in that: The first transport assembly (209) comprises a second fixed frame (2091) and a second linear module (2092) arranged on the second fixed frame (2091); a movable seat (2093) is arranged on the second linear module (2092); a lifting plate (2094) that can move up and down is arranged on the movable seat (2093); and a suction cup assembly (2095) for sucking the electronic paper is arranged on the lifting plate (2094).

8. The laser cutting mechanism of electronic paper according to claim 3, characterized in that: The pressing assembly (211) comprises a fixed seat (2111) arranged on a support frame (201); a movable plate (2114) is provided on the fixed seat (2111) and can move in a direction close to and away from the feeding assembly (205); a cylinder (2112) with a telescopic rod arranged upward is installed on the movable plate (2114); a pressing piece (2113) for pressing the electronic paper is fixedly provided on the end of the telescopic rod of the cylinder (2112); and an electric push rod (2115) for driving the movable plate (2114) to move is provided on the fixed seat (2111).

9. The laser cutting mechanism of electronic paper according to claim 1, characterized in that: The feeding assembly (205) comprises a fixed plate (2051) arranged on a support frame (201) and placed below a laser cutting device (207); a feeding platform (2052) for conveying electronic paper through the bottom of the laser cutting device (207) is slidably provided on the fixed plate (2051); a screw rod (2053) whose axial direction is consistent with the moving direction of the feeding platform (2052) is rotatably provided on the fixed plate (2051); a stepping motor (2054) whose output shaft is connected to one end of the screw rod (2053) is also installed on the fixed plate (2051); and a connecting block (2055) threadedly connected to the screw rod (2053) is fixedly provided at the bottom of the feeding platform (2052).

10. The laser cutting mechanism of electronic paper according to claim 4, characterized in that: The smoking assembly (212) comprises a bottom smoking pipe (2122) and a top smoking pipe (2125); an air suction pump (2121) is installed on the support frame (201); one end of the bottom smoking pipe (2122) is connected to the air suction pump (2121), and the other end is placed below the feeding platform (2052); a smoking sheet metal part (2124) for gathering smoke is provided at the end of the laser cutting device (207) emitting laser, and one end of the top smoking pipe (2125) is connected to the air suction pump (2121), and the other end is connected to the smoking sheet metal part (2124).

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