Field lens protection cover and field lens device

By designing a field mirror protective cover with air curtain block and rectifier components, using vertical blowing and multi-channel air curtain structure, the problem of dust adhering to the field mirror during laser cutting is solved, achieving more stable laser cutting and cleaner light paths.

CN222643535UActive Publication Date: 2025-03-21SHENZHEN GEESUN INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202421178706.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-27
Publication Date
2025-03-21
Estimated Expiration
2034-05-27

AI Technical Summary

Technical Problem

During the laser cutting process of the existing field mirror protective cover, dust is prone to adhere to the field mirror surface, resulting in beam occlusion and unstable cutting, and requires regular manual cleaning, affecting the stability of the machine.

Method used

A field mirror protection cover is designed, including an air curtain block and a rectification component. The air curtain block is equipped with an air curtain inlet and an air curtain outlet. The rectification component is equipped with a field mirror air inlet, a flow channel and a field mirror outlet. The flow channel is vertically blowing air to the field mirror surface. A multi-channel air curtain structure is set at the outlet of the air curtain to force the dust wind direction downward.

Benefits of technology

Through vertical blowing and multi-channel air curtain structure, the possibility of dust adhering to the field mirror is reduced, the impact of dust on cutting is reduced, the need for manual cleaning is avoided, and the stability of laser cutting and the cleanliness of the optical path are improved.

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Patent Text Reader

Abstract

The embodiment of the utility model provides a field lens protection cover and a field lens device, and relates to the technical field of field lens dust isolation. The problem that in the laser die cutting process, dust is prone to being attached to a laser field mirror surface to block light, and consequently pole piece cutting is not stable is solved. The field lens protection cover comprises an air curtain block and a rectification assembly, the air curtain block is provided with an air curtain air inlet and an air curtain outlet, and the air curtain outlet corresponds to the field lens surface; the rectification assembly is used for being fixed between the air curtain block and the field lens, and the rectification assembly is provided with a field lens air inlet, a flow guide cavity channel and a field lens outlet; and the flow guide cavity channel is communicated with the field lens air inlet and is used for vertically blowing air to the field lens surface. The field lens device comprises the field lens protection cover. Air enters the flow guide cavity channel from the field lens air inlet, is vertically blown out from the flow guide cavity channel to the field lens surface and then is discharged from the air curtain outlet, an air curtain is formed in the air curtain outlet, the dust wind direction is forced to be downward, the dust trend is changed, and in this way, the influence of dust on cutting is greatly reduced.
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