CN-117177834-B - Laser cutting device

CN117177834BCN 117177834 BCN117177834 BCN 117177834BCN-117177834-B

Abstract

In a laser cutting device (1), a trapping part (4) can move in a first direction (X) together with a laser head (3) to trap dust generated by cutting. The collection hopper (5) is disposed on the first side surface (21) side of the housing (2). The suction device (6) is connected to the collection hopper (5) and sucks dust moving from the collection portion (4) to the collection hopper (5). The collection unit (4) has a tank unit (41) and an airflow generation unit (42). A first opening 436 and an open end 441 are formed in the case portion 41. The first opening (436) is opposite to the laser head (3) and along the second direction (Y). The open end (441) has a second opening (442) open toward the collection hopper (5).

Inventors

YOSHIHIKO YAMAGUCHI
NISHIKAWA TAKASHI
Zheng's filial piety two

Assignees

小松产机株式会社

Dates

Publication Date: 20260512
Application Date: 20220708
Priority Date: 20210719

Claims (6)

1. A laser trimming apparatus, comprising: A machine room for cutting the workpiece by using laser; a laser head movable in a first direction parallel to a conveying direction of the workpiece and a second direction orthogonal to the first direction; A trapping part capable of moving in the first direction together with the laser head to trap dust generated by cutting, A collection hopper disposed on a first side surface side of the housing, for collecting the dust; a suction part connected to the collection hopper, sucking the dust moving from the collection part to the collection hopper, The trapping hopper has a trapping port formed in the first side of the machine room, The trapping part has: A case portion facing the laser head, the case portion having an open end with a first opening along the second direction and a second opening opened toward the collection hopper; A first air flow generating portion that generates an air flow toward the open end in the tank portion.
2. The laser cutting device according to claim 1, wherein, The first airflow generating part is provided with a blowing nozzle.
3. The laser cutting device according to claim 1, further comprising: a separation plate disposed in the collection hopper and separating the end material from dust moving from the second opening; And an end material recovery unit that takes out the end material separated by the separation plate from the collection unit.
4. The laser cutting device according to claim 1, wherein, The trapping port has a first region into which the open end can be inserted and a second region disposed on an upper side of the first region, The laser cutting device further has: A second airflow generating unit which is disposed on a second side surface of the housing opposite to the first side surface and generates an airflow directed to the second region above the collecting unit; And an air volume adjusting unit disposed in the second region and configured to adjust the air flow generated by the second air flow generating unit.
5. The laser cutting device according to claim 1, wherein, The laser cutting device further comprises a vent arranged above the workpiece and arranged on the first side surface or a second side surface of the machine room opposite to the first side surface, the vent taking in external air, The trapping hopper has a trapping port formed on the first side surface side of the machine room, By suction of the suction portion, an air flow from the air vent through the upper surface of the work piece toward the trap port is generated.
6. The laser trimming apparatus according to any one of claims 1 to 5, wherein, The laser cutting device further has: A cover arranged around the laser emitting part of the laser head; a conduit connecting the hood and the tank.

Description

Laser cutting device Technical Field The present disclosure relates to a laser cutting device. Background In recent years, in a press line, a laser cutting device that cuts by a laser cutting machine is used instead of punching by a press machine (for example, refer to patent documents 1 and 2). In a laser cutting apparatus, laser cutting is also required to have a high speed in order to ensure productivity in a press line, and it is required to effectively collect a large amount of dust, end materials, and the like generated by high-speed cutting. In patent document 1, a container for trapping dust is disposed below a laser head with a workpiece interposed therebetween, and the container is configured to be movable in a conveying direction together with the laser head. In patent document 2, a belt conveyor for collecting an end material or the like is disposed below a laser head with a workpiece interposed therebetween, and the belt conveyor is movable in a conveying direction together with the laser head. Prior art literature Patent literature Patent document 1 Japanese patent application laid-open No. 2018-516760 Patent document 2 Japanese patent application laid-open No. 2004-50184 Disclosure of Invention Although not described in patent documents 1 and 2, the laser cutting device is housed in a machine room to prevent leakage of laser light to the outside, and it is necessary to carry dust collected by a container or a belt conveyor out of the machine room. However, patent documents 1 and 2 do not disclose a structure for moving dust trapped in a container or a belt conveyor to the outside of a machine room. The invention aims to provide a laser cutting device which corresponds to high-speed cutting and can move dust generated by cutting out of a machine room. (Means for solving the problems) The first disclosed laser cutting device includes a machine room, a laser head, a collecting section, a collecting hopper, and a suction section. In the case of the machine room, cutting of the workpiece is performed by a laser. The laser head is movable in a first direction parallel to a conveying direction of the workpiece and a second direction orthogonal to the first direction. The trapping part can move in a first direction together with the laser head and traps dust generated by cutting. The collection hopper is disposed on the first side of the housing to collect dust. The suction part is connected with the collecting hopper and sucks the dust moving from the collecting part to the collecting hopper. The trap part has a tank part and a first airflow generating part. The box portion is formed with a first opening and an open end. The first opening is opposite to the laser head along the second direction. The open end has a second opening open toward the collection hopper. (Effects of the invention) According to the present invention, it is possible to provide a laser cutting device capable of moving dust generated by cutting to the outside of a machine room in correspondence with high-speed cutting. Drawings Fig. 1 is an overall perspective view of a laser cutting device according to embodiment 1 of the present disclosure. Fig. 2 is an enlarged perspective view of the laser cutting device of embodiment 1 of the present disclosure. Fig. 3 is a cross-sectional view of the vicinity of the laser head of the laser cutting device according to embodiment 1 of the present disclosure. Fig. 4 is a perspective view showing a dust collecting unit and a driving mechanism of the laser cutting device according to embodiment 1 of the present disclosure. Fig. 5 is a perspective view showing a dust collecting part, a driving mechanism and a dust collecting hopper of the laser cutting device according to embodiment 1 of the present disclosure. Fig. 6 is a schematic diagram showing the flow of air flow in the laser cutting device of embodiment 1 of the present disclosure. Fig. 7 is an overall perspective view of the laser cutting device in embodiment 2 of the present disclosure. Fig. 8 is a cross-sectional view perpendicular to the conveying direction of the laser cutting device of embodiment 2 of the present disclosure. Fig. 9 is a cross-sectional view perpendicular to the conveying direction of the laser cutting device in a modification of embodiment 2 of the present disclosure. Detailed Description Hereinafter, a laser cutting device according to an embodiment of the present disclosure will be described with reference to the accompanying drawings. (Embodiment 1) Hereinafter, a laser cutting device according to embodiment 1 of the present disclosure will be described. (Outline of laser cutting device 1) Fig. 1 is an overall perspective view of a laser cutting device 1 according to an embodiment. The laser cutting device 1 is used in a laser cutting line, for example, for cutting a desired shape from a steel plate (workpiece). An uncoiler (uncoiler), a leveler, a laser cutting device, a cleaning device, a stacker and the like