A laser drilling beam splitting focusing device and its matching cigarette laser drilling machine
A laser drilling machine and focusing device technology, which is applied in laser welding equipment, metal processing equipment, welding equipment, etc., can solve problems such as inability to split light, lens aggregation, and dust entering the optical path
Active Publication Date: 2020-04-07
江苏瑞驰机电科技有限公司
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Problems solved by technology
[0003] Due to the narrow space inside the equipment, other functional devices and devices are distributed around the punching device. The laser emitted by the laser is directly split and focused, making the light outlet of the focusing device too close to the cigarette branch, the maximum is only 4mm, and the result is smoke. The dust generated during punching can easily enter the optical path, or block the light outlet or accumulate on the lens, affecting the performance of the lens and destroying the normal drilling. At the same time, it is not possible to use more extensive equipment to change the optical path. distributed
[0004] After searching, it is found that Chinese patent 201620699067.3 discloses a beam splitting device with continuously adjustable position of the cigarette hole. The optical path of the light distribution up and down is changed to parallel distribution and then the light is split
[0005] In addition, since the focusing device is sleeved on the spectroscopic tube to slide and adjust the distance, a through groove must be opened on the spectroscopic tube. The optical path between the two is not completely closed, this design may cause dust to enter the optical path, thereby interfering with the operation of the entire optical path
Method used
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Embodiment 1
[0041] In this embodiment, the first plane of the two beams of incident light is perpendicular to the working surface and is distributed up and down, so the third plane of the reflective surface of the beam splitter and the third reflector must be vertical to form parallel to the first plane.
[0042] Composition: cigarette rotating drum 11, separate cigarette puller 10, double-length cigarette 8, focusing assembly (polarizer 2, first focusing device 6, second focusing device 7), incident light 1 such as image 3 Shown:
[0043] ① Due to the fact that the incident light 1 has been distributed up and down and limited by the mechanical position, the two laser beams must first be deflected before focusing and drilling. The input laser passes through the first reflector 2.1 and the second reflector 2.2 in the polarizer 2 After the oblique reflection, the laser light path is first deflected along the radial position, and the deflected laser light is then split by 4 beam splitters, ...
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Abstract
The invention is a laser drilling beam splitting and focusing device, comprising: two non-parallel laser beams distributed in the same plane, the plane is perpendicular or parallel to the working surface; an optical path deflector mainly consists of a pair of mirrors facing each other and distributed in parallel The first refracting mirror and the second refracting mirror are composed; the beam splitting device is mainly composed of a beam splitter and a third refracting mirror installed coaxially; the focusing device is mainly composed of the first focusing device and the second focusing device, which are respectively installed on Between the third refracting mirror and the cigarette, and between the refraction light path of the beam splitter and the cigarette; the cigarette is parallel to the working surface.
Description
technical field [0001] The invention relates to a laser drilling beam splitting and focusing device and its supporting cigarette laser drilling machine, in particular to a beam splitting and focusing device with a wide range of continuous and adjustable spacing between laser punching holes, belonging to the technical field of tobacco equipment processing . Background technique [0002] In the current laser drilling machine, see see Figure 9 , 10 11. The light beam from the back of the machine directly enters the beam splitting device to split the light, and then focuses through the lens to irradiate the surface of the cigarette. The distance between the surface of the device and the surface of the cigarette is only 4 mm. [0003] Due to the narrow space inside the equipment, other functional devices and devices are distributed around the punching device. The laser emitted by the laser is directly split and focused, making the light outlet of the focusing device too close t...
Claims
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IPC IPC(8): B23K26/38B23K26/064B23K26/067
CPCB23K26/0643B23K26/0648B23K26/067B23K26/38
Inventor 韩勇李小田
Owner 江苏瑞驰机电科技有限公司