CN110539075A

CN110539075A - Laser cutting device for civil air defense door

Info

Publication number: CN110539075A
Application number: CN201910820792.XA
Authority: CN
Inventors: 纪建华; 陈春洋; 赵继光; 沈旭辉; 周小兵
Original assignee: Jiaxing Giant Protection Equipment Co Ltd
Current assignee: Jiaxing Giant Protection Equipment Co Ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2019-12-06

Abstract

The invention discloses a civil air defense door laser cutting device, which comprises a laser head for laser cutting and a ring-type gas nozzle sleeved outside the laser head, wherein a plurality of gas nozzles are distributed on the front end surface of the gas nozzle, the gas nozzles extend to the rear end of the gas nozzle and are communicated with an annular air cabin at the rear end of the gas nozzle, the air cabin is externally connected with a gas pipeline for conveying inert gas, an annular brush is sleeved outside the gas nozzle, and the front end of the brush hair of the brush is arranged to protrude out of the end surface of the laser head. This people's air defense door laser cutting device can avoid the splash adhesion after the cutting again on people's air defense door leaf surface when conveniently cutting.

Description

laser cutting device for civil air defense door

The technical field is as follows:

The invention relates to civil air defense door processing equipment, in particular to a civil air defense door laser cutting device.

background art:

The non-metallic composite material is a mixture, plays a great role in many fields, is applied to the door leaf structure of the civil air defense door in recent years, replaces the original concrete and steel structure, the forming is generally finished by a method of layer-by-layer covering, because the forming precision of the die is not high and the edges of the formed product are not neat, the phenomenon of burrs at the edges when the civil air defense door leaf is formed requires to be cut at the later stage, the products are easy to be layered when the drill bit is used for punching and the cutter is used for cutting the edges, the laser cutting is used, because the laser cutting realizes cutting by utilizing high-energy instant burning, the energy impact force is very high, so that a plurality of splashes are simultaneously sprayed during burning through, and the splashes contain burning particles which fall onto the door leaf and are adhered to the surface of the door leaf to form particles, so that the appearance is influenced.

The invention content is as follows:

The invention aims to solve the technical problem of providing a civil air defense door laser cutting device which is convenient to cut and can prevent splashes after cutting from being adhered to the surface of a door leaf of the civil air defense door.

The technical scheme includes that the civil air defense door laser cutting device comprises a laser head used for laser cutting and an annular jet head sleeved on the outer side of the laser head, a plurality of jet holes are distributed on the front end face of the jet head, the jet holes extend to the rear end of the jet head and are communicated with an annular air cabin at the rear end of the jet head, the air cabin is externally connected with a gas pipeline used for conveying inert gas, an annular hairbrush is sleeved on the outer side of the jet head, and the front end of the brush hair of the hairbrush protrudes out of the end face of the laser head.

Compared with the prior art, the invention has the following advantages after adopting the structure: : establish the jet head through encircling in the laser head outside, set up annular air cabin in the jet head, make the atmospheric pressure distribution of each fumarole even to let in inert gas in gas line, inert gas not only can cool off the cutting area of laser cutting head after getting into the jet head, and inert gas can also completely cut off oxygen simultaneously and stop the burning, and the splash drops back door leaf surface just can not adhesion at once like this, then in time clears up it with the brush and can clear away it, does not influence the cutting again simultaneously.

preferably, the device also comprises a cover shell which covers the laser head, the gas spray head and the annular hairbrush. Not only can protect the operator, but also can reduce the area of the splashed objects falling.

furthermore, the housing is symmetrically provided with a dust suction hole which is connected with the dust collector through a dust suction pipe. The cooled splashes can be directly subjected to dust collection treatment, and the splashes falling to the surface of the door leaf are reduced.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the present invention.

The specific implementation mode is as follows:

The invention is further described with reference to the following figures and detailed description:

As shown in fig. 1, a people's air defense door laser cutting device, including laser head 1 that is used for laser cutting, still establish the ring type fumarole 2 in the laser head outside including the cover, a plurality of fumaroles 3 of 2 preceding terminal surface evenly distributed of fumarole, fumarole 3 extend to the fumarole rear end and with the annular air cabin intercommunication of fumarole rear end, the external gas pipeline 5 of carrying inert gas in air cabin, deliver to the fumarole with inert gas through gas pipeline in, 2 outside covers still of fumarole are equipped with annular brush 4, the brush hair front end of brush 4 is suddenly in the setting of laser head terminal surface. Preferably, the device also comprises a cover 6 which covers the laser head, the air nozzle and the annular hairbrush, and the cover 6 is also symmetrically provided with a plurality of dust suction holes which are connected with a dust collector through a dust suction pipe 7.

during the use, when laser cutting, inert gas passes through the gas pipeline and gets into the gas nozzle, cools down the splash, and simultaneously, the dust absorption hole on the housing adsorbs refrigerated splash, inhales it in the dust catcher, reduces the flying dust that falls back on the door leaf, then closes the laser head, utilizes the brush to clear away the flying dust that falls back to the regional surface of cutting, avoids its adhesion on the regional surface of cutting again.

The foregoing is illustrative of the preferred embodiments of the present invention only and is not to be construed as limiting the claims. All equivalent structures or equivalent process changes made by using the contents of the specification and the drawings of the invention are included in the scope of the patent protection of the invention.

Claims

1. The utility model provides a people's air defense door laser cutting device, includes the laser head that is used for laser cutting, its characterized in that: the laser head comprises a laser head body and is characterized by further comprising an annular jet head, wherein the annular jet head is sleeved on the outer side of the laser head body, a plurality of jet holes are distributed on the front end face of the jet head body, the jet holes extend to the rear end of the jet head body and are communicated with an annular air cabin at the rear end of the jet head body, the air cabin is externally connected with a gas pipeline for conveying inert gas, an annular brush is further sleeved on the outer side of the jet head body, and the front end.

2. the civil air defense door laser cutting device of claim 1, wherein: and the device also comprises a cover shell which covers the laser head, the air nozzle and the annular hairbrush.

3. The civil air defense door laser cutting device of claim 1, wherein: the housing is also symmetrically provided with a dust suction hole which is connected with a dust collector through a dust suction pipe.