Laser perforating device with wide scanning focus

Abstract

The invention discloses a laser perforating device with wide scanning focus. The laser perforating device includes a floating rotation conveying device and a laser perforating device body; the floating rotation conveying device includes a rotating disc rotating axially, and a plurality of rotating negative pressure sucking grooves are formed in the circumference of the rotating disc; the laser perforating device body includes a rotating prism, arc-shaped cylindrical lenses and a plurality of reflectors, the rotating prism is arranged at the end of the rotating disc and is coaxially arranged with the rotating disc; the arc-shaped cylindrical lenses are arranged on the outer ring of the rotating disc in the circumferential direction of the rotating disc; and pulse laser received by the rotating prism is transmitted to the arc-shaped cylindrical lenses through the reflectors, focuses on filter tips of cigarettes adsorbed by the negative pressure sucking grooves, and circumferential perforating is completed along with the rotation of the negative pressure sucking grooves. According to the laser perforating device, the defect that traditional laser perforating can only focus on the plane is overcome, laser is scanning and perforating while the cigarettes rotate, and the cigarettes are always perforated on the focal plane without damage. The perforating accuracy is high, the moldingeffect is good, the distance is uniform, the size is consistent, the operation is convenient, the adjustment is easy, and the practicability and wide applicability are high.

Description

technical field

[0001] The invention relates to a laser drilling device, in particular to a wide-range scanning focusing laser drilling device, which belongs to the technical field of cigarette equipment applications. Background technique

[0002] Laser has the characteristics of high brightness, high monochromaticity, high coherence and good directionality.

[0003] The principle of laser drilling means that the laser is irradiated on the material after being focused, so that the temperature of the material rises rapidly to melt or vaporize. With the relative movement between the laser and the material to be processed, circular holes or linear holes are formed on the material to be processed. The purpose of punching.

[0004] The use of laser drilling on cigarettes can reduce the damage of tar to the body. The conventional method is to carry out laser drilling on the filter tip of the cigarette, and the cigarette is volleyed and punched by the pulsed laser emitted by the ...

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