WO2021077999A1 - 一种用于棒状物品的在线激光打孔装置和打孔方法 - Google Patents

一种用于棒状物品的在线激光打孔装置和打孔方法 Download PDF

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Publication number
WO2021077999A1
WO2021077999A1 PCT/CN2020/118756 CN2020118756W WO2021077999A1 WO 2021077999 A1 WO2021077999 A1 WO 2021077999A1 CN 2020118756 W CN2020118756 W CN 2020118756W WO 2021077999 A1 WO2021077999 A1 WO 2021077999A1
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Prior art keywords
rod
shaped article
drum
receiving drum
roller
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PCT/CN2020/118756
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English (en)
French (fr)
Inventor
雷萍
张柯
汤建国
张明建
杨文�
王爽
李志强
黄锋
韩敬美
王兵
夏建军
邓楠
吕茜
李斌
龚为民
缪明明
Original Assignee
云南中烟工业有限责任公司
中国烟草总公司郑州烟草研究院
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Priority claimed from CN202010733215.XA external-priority patent/CN113996935A/zh
Application filed by 云南中烟工业有限责任公司, 中国烟草总公司郑州烟草研究院 filed Critical 云南中烟工业有限责任公司
Publication of WO2021077999A1 publication Critical patent/WO2021077999A1/zh

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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/60—Final treatment of cigarettes, e.g. marking, printing, branding, decorating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece

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  • the invention belongs to the technical field of laser drilling, and particularly relates to an online laser drilling device and a drilling method for rod-shaped articles.
  • the cigarettes adopt shortened cellulose acetate and other materials to make solid filter rods, and use cellulose acetate hollow tubes or paper tubes as the connection heating cigarettes to produce smoke.
  • the cellulose acetate hollow tube or paper tube not only has the function of supporting and connecting, but also has a certain cooling effect, which is usually called a hollow supporting section.
  • a cooling section is often set between the hollow support section and the filter rod to effectively cool the smoke temperature, as disclosed in the Philip Morris International CN 201280061528.9 patent Structure of cigarettes.
  • the heating temperature is increased, the temperature of the flue gas entering the oral cavity will be significantly increased.
  • the existing cooling method of the cigarette structure will not be sufficient to meet the current cooling demand. Holes can be punched in the hollow pipe section of the cigarette support section. The air flow in the cigarette is supplemented with outside air, and the temperature of the smoke entering the mouth is reduced.
  • laser perforation of cigarettes is mainly for the tipping paper used for cigarettes.
  • the tipping paper is set on a flat surface, and one or more rows are emptied according to the product design, and then crimped.
  • the current perforation method cannot realize the perforation on the circumferential surface of the hollow pipe section.
  • the first aspect of the present invention provides an online laser perforating device for rod-shaped articles.
  • the online laser perforating device includes: a receiving drum 1, a transfer drum 4, a rubbing roller 6, and a laser 7;
  • roller surface of the receiving drum 1 is provided with a plurality of conveying teeth 2 in the circumferential direction, and each of the conveying teeth 2 is provided with at least one second tuyere 9;
  • a plurality of suction grooves 5 are provided in the circumferential direction on the roller surface of the transfer drum 4, and each suction groove 5 is provided with at least one first tuyere 8;
  • the arrangement of the laser 7 is such that the laser light emitted by the laser 7 is vertically downward;
  • the pickup roller 6 is arranged between the receiving drum 1 and the transfer drum 4;
  • the rotation directions of the receiving drum 1 and the transfer drum 4 are opposite, and there is a distance between the roller surfaces of the two;
  • the minimum distance between the roller surface of the receiving drum 1 and the roller surface of the pickup roller 6 is slightly smaller than the cross-sectional diameter of the rod-shaped article.
  • each conveying tooth 2 contacts the roller surface of the receiving drum 1.
  • at least a part of the contour of the conveying tooth is an arc-shaped curved surface and the second tuyere 9 is provided on the arc-shaped curved surface, so as to be compatible with the cylindrical profile of the rod-shaped article and suitable for sucking the rod-shaped article .
  • the relative positions of the receiving drum 1, the transfer drum 4, and the pickup roller 6 are set as follows:
  • the position of the rotation shaft of the transfer drum 4 is lower than the position of the rotation shaft of the receiving drum 1, and the position of the rotation shaft of the receiving drum 1 is lower than the position of the rotation shaft of the pickup roller 6.
  • the roller surface of the pickup roller 6 has a first rubbing mechanism capable of rubbing rod-shaped articles
  • the roller surface of the receiving drum 1 has a second rubbing mechanism capable of rubbing rod-shaped articles.
  • the first rubbing mechanism is a rough surface or a toothed surface provided on the roller surface of the pickup roller 6, and the second rubbing mechanism is a rough surface or a toothed surface provided on the roller surface of the receiving drum 1. Textured surface.
  • the rough surface or toothed surface of the roller surface of the pick-up roller 6 and the receiving drum 1 can be set independently of each other.
  • the minimum distance between the roller surface of the receiving drum 1 and the roller surface of the pick-up roller 6 is 95%-100% of the diameter of the cross-section of the rod-shaped article, for example, it can be 95%, 96%, 97%. %, 98%, 99%.
  • the minimum distance between the roller surface of the receiving drum 1 and the roller surface of the pick-up roller 6 is 98%-100% of the diameter of the cross-section of the rod-shaped article.
  • the first tuyere 8 and the second tuyere 9 are holes or through holes independently of each other.
  • the first tuyere 8 and the second tuyere 9 are both in communication with a negative pressure generating device, and both provide negative pressure around the tuyere to attract rod-shaped articles to be held on the roller surface.
  • the negative pressure generating device is selected from equipment such as vacuum pumps.
  • the second aspect of the present invention provides an online laser drilling method for rod-shaped articles, which is performed using the online laser drilling device according to the first aspect of the present invention, and the online laser drilling method includes the following steps:
  • the rod-shaped article is transported to the suction groove 5 of the transfer drum 4 and held on it stably by negative pressure.
  • the rod-shaped article is transferred to the conveying teeth of the receiving drum 1 along with the rotation of the transfer drum 4 2, and rely on negative pressure to maintain stability on it;
  • the laser 7 emits laser light and perforates the peripheral surface of the rod-shaped article
  • the laser light emitted by the laser 7 is vertically downward, consistent with the direction of gravity, and passes through the rod-shaped article in the diameter direction.
  • the frequency at which the laser 7 emits laser light is adjusted to adjust the number of holes punched on the peripheral surface of the rod-shaped article.
  • the output power of the laser 7 is ⁇ 450W.
  • the rod-shaped article is a cigarette 3 with a hollow tube section, and the position of the laser 7 is set to perforate the hollow tube section.
  • step E the next conveying tooth 2 simultaneously brings the next stick-shaped article to be punched.
  • the hollow tube section is a hollow paper tube with a wall thickness of 0.2-0.8 mm.
  • the third aspect of the present invention provides the use of the online laser drilling method described in the first aspect for drilling the peripheral surface of a rod-shaped article and improving the accuracy of the drilling.
  • the online laser perforating device of the present invention can perforate the peripheral surface of the rod-shaped article. Due to the attractive effect of the negative pressure, the rod-shaped article can be accurately positioned.
  • the rod-shaped article is relatively fixed at the punching position by gravity and the rotation of the device. It can rotate on its own, with high punching accuracy, simple design, easy to maintain, and no additional device for rotating rod-shaped objects to rotate.
  • the laser light emitted by the laser is vertically downward, consistent with the direction of gravity.
  • the punching position will be shifted, for example, the hole diameter has an error, the hole shape is inconsistent, and the laser passes through the path not along the diameter direction.
  • the punching position will not shift, and the hole diameter and hole shape during the punching process of a rod-shaped article are maintained. Unanimous.
  • Fig. 1 is a schematic diagram of an online laser drilling device for rod-shaped articles in Example 1.
  • Fig. 2 shows the cigarette 3 to be perforated in Example 2.
  • Receiving drum 2. Conveying teeth, 3. Cigarettes, 3-1, Smoke medium section, 3-2, Hollow paper tube section, 3-3, Filter rod section, 4. Transfer drum, 5. Suction slot , 6, rubbing roller, 7, laser, 8, the first tuyere, 9, the second tuyere.
  • an online laser perforating device for rod-shaped articles.
  • the online laser perforating device includes: a receiving drum 1, a transfer drum 4, a roller 6, and a laser 7;
  • the roller surface of the receiving drum 1 is provided with a plurality of conveying teeth 2 in the circumferential direction, and each of the conveying teeth 2 is provided with at least one second tuyere 9 where it contacts the roller surface of the receiving drum 1;
  • a plurality of suction grooves 5 are provided in the circumferential direction on the roller surface of the transfer drum 4, and each suction groove 5 is provided with at least one first tuyere 8;
  • the arrangement of the laser 7 is such that the laser light emitted by the laser 7 is vertically downward;
  • the pickup roller 6 is arranged between the receiving drum 1 and the transfer drum 4;
  • the rotation directions of the receiving drum 1 and the transfer drum 4 are opposite, and there is a distance between the roller surfaces of the two;
  • the minimum distance between the roller surface of the receiving drum 1 and the roller surface of the pickup roller 6 is slightly smaller than the cross-sectional diameter of the rod-shaped article.
  • the relative positions of the receiving drum 1, the transfer drum 4, and the pickup roller 6 are set as follows:
  • the center position of the cross section of the transfer drum 4 is lower than the center position of the cross section of the receiving drum 1, and the center position of the cross section of the receiving drum 1 is lower than the center position of the cross section of the pickup roller 6.
  • the roller surface of the rubbing roller 6 is a toothed surface, which forms a first rubbing mechanism capable of rubbing rod-shaped articles.
  • the roller surface of the receiving drum 1 is a rough surface, forming a second rubbing mechanism capable of rubbing rod-shaped articles.
  • the minimum distance between the roller surface of the receiving drum 1 and the roller surface of the pickup roller 6 is 98% of the cross-sectional diameter of the rod-shaped article.
  • the first tuyere 8 and the second tuyere 9 are both through holes.
  • the roller surface of the transfer drum 4 is provided with 12 suction grooves 5 in the circumferential direction, and the groove bottom of each suction groove 5 has a through hole, which is the first tuyere 8. Only one is shown in FIG. 1 Take for example.
  • the roller surface of the receiving drum 1 is provided with 12 protruding conveying teeth 2 in the circumferential direction, and at least one through hole is provided where each conveying tooth 2 contacts the roller surface of the receiving drum 1.
  • Two tuyere 9, Figure 1 shows only two as an example, the two second tuyere 9 are respectively arranged upstream and downstream of the same conveying tooth 2;
  • the rotation direction of the receiving drum 1 is recorded as from downstream to upstream.
  • the transfer drum 4 and the receiving drum 1 are equipped with negative pressure suction devices, so that the first tuyere 8 and the second tuyere 9 are in a negative pressure state and can attract rod-shaped articles.
  • the shape of the suction groove 5 is designed such that at least part of the volume of the rod-shaped article can be kept in the suction groove 5, so that when the transfer drum 4 rotates, it depends on the negative pressure in the suction groove 5 The rod-shaped article can be stably maintained on the transfer drum 4.
  • the cross section of the suction groove 5 is arc-shaped.
  • the conveying tooth 2 has at least one arc-shaped side surface, so that at least part of the volume of the rod-shaped article can be kept in the arc-shaped part of the side surface of the conveying tooth 2, so that when the receiving drum 1 rotates, it depends on the conveying tooth 2. With the power of the negative pressure generated by the second tuyere 9, the rod-shaped article can be stably maintained on the receiving drum 1.
  • Fig. 1 is a schematic diagram of an online laser perforating device for rod-shaped articles in Example 1.
  • the respective rotation directions of the receiving drum 1, the transfer drum 4, and the pick-up roller 6 are shown in Fig. 1 for the arrows on the cross-sections of the respective rollers.
  • Direction, in Fig. 1, the receiving drum 1 and the transfer drum 4 only show part of the roller surface.
  • an online laser drilling method for rod-shaped articles is performed using the online laser drilling device described in Example 1.
  • the rod-shaped articles in Example 2 are cigarettes 3.
  • 3 includes the smoking medium section 3-1, the hollow paper tube section 3-2, and the filter rod section 3-3 which are in turn abutting.
  • the hollow paper tube section 3-2 has a wall thickness of 0.8 mm and a circumference of 16.8 mm.
  • the output power of the laser 7 was adjusted to 500W, and the hollow paper tube section 3-2 was punched with a hole diameter of 0.2 mm, and each cigarette 3 was punched in a single row, a total of 12 holes were punched.
  • the online laser drilling method includes the following steps:
  • the cigarette 3 rotates with the receiving drum 1 and is transported to contact with the pickup roller 6. Under the joint action of the receiving drum 1 and the pickup roller 6, the cigarette 3 is slightly Deformed and transported to the punching position a;
  • the laser light emitted by the laser 7 punches the paper tube 3-2, and the laser light emitted by the laser 7 is vertically downward, consistent with the direction of gravity. ;
  • Fig. 1 shows the operating state of the punching process of the online laser punching device, and three cigarettes 3 are held on the punching device.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)

Abstract

一种用于棒状物品的在线激光打孔装置和打孔方法。在线激光打孔装置包括：接收鼓（1），传递鼓（4），搓辊（6），激光器（7）；所述激光器（7）的设置方式使得其发射出的激光竖直向下；所述搓辊（6）设置在所述接收鼓（1）和所述传递鼓（4）之间；所述接收鼓（1）和传递鼓（4）的自转方向相反，且两者的辊面之间存在距离；所述接收鼓（1）的辊面与所述搓辊（6）的辊面之间的最小距离略小于所述棒状物品的横截面直径。在线激光打孔装置可以对棒状物品的周面进行打孔，由于负压的吸引力作用，棒状物品可精确定位，打孔的精准度高，设计简单，且不需要另外拨动棒状物品自转的装置。

Description

一种用于棒状物品的在线激光打孔装置和打孔方法 技术领域
本发明属于激光打孔技术领域，特别涉及一种用于棒状物品的在线激光打孔装置和打孔方法。
背景技术
在目前加热卷烟市场中，为了降低滤棒对烟气及其中物质的吸附作用，卷烟中采取缩短醋纤等材料制作实心滤棒，并使用醋纤中空管或纸管作为连接加热卷烟发烟介质段和滤棒的过渡段。醋纤中空管或纸管不仅具有支撑连接的作用，还具有一定的降温效果，通常叫做中空支撑段。同时为了将加热卷烟中烟气温度降至适宜的抽吸口感，常在中空支撑段与滤棒之间设置降温段，以对烟气温度进行有效的降温，如菲莫国际CN 201280061528.9专利所公开的烟支结构。但若将加热温度提升，烟气进入口腔的温度将明显提升，现有的烟支结构降温方式将不足以满足当前的降温需求，可在烟支支撑段的中空管段上打孔，以对烟支内的气流补充外界空气，降低进入口腔的烟气温度。
目前使用激光对烟支打孔主要是针对烟支所用的水松纸，将水松纸设置在平面上，根据产品设计需要打一排或多排空，然后再进行卷接。但若需对加热卷烟用中空管段进行打孔，则当前的打孔方式不能实现对中空管段的圆周面进行打孔。
为了解决上述问题，提出本发明。
发明内容
本发明第一方面提供一种用于棒状物品的在线激光打孔装置，所述在线激光打孔装置包括：接收鼓1，传递鼓4，搓辊6，激光器7；
其中，所述接收鼓1的辊面上周向设置有若干个输送齿2，每个所述输送齿2处设置有至少一个第二风口9；
所述传递鼓4的辊面上周向设置有若干个吸风槽5，每个所述吸风槽5内设置有至少一个第一风口8；
所述激光器7的设置方式使得其发射出的激光竖直向下；
所述搓辊6设置在所述接收鼓1和所述传递鼓4之间；
所述接收鼓1和传递鼓4的自转方向相反，且两者的辊面之间存在距离；
所述接收鼓1的辊面与所述搓辊6的辊面之间的最小距离略小于所述棒状物品的横截面直径。
优选地，在每个所述输送齿2与所述接收鼓1的辊面接触处设置有至少一个第二风口9。或者，所述输送齿的至少一部分轮廓为弧形曲面且所述第二风口9设置在该弧形曲面上，以便与所述棒状物品的圆柱形轮廓相适配且适合于吸住所述棒状物品。
优选地，所述接收鼓1，传递鼓4、搓辊6的相对位置设置为：
所述传递鼓4的旋转轴位置低于所述接收鼓1的旋转轴位置，所述接收鼓1的旋转轴位置低于所述搓辊6的旋转轴位置。
优选地，所述搓辊6的辊面上具有可搓转棒状物品的第一搓转机构，所述接收鼓1的辊面上具有可搓转棒状物品的第二搓转机构。
优选地，所述第一搓转机构为设置在所述搓辊6辊面的粗糙面或齿纹面，所述第二搓转机构为设置在所述接收鼓1辊面的粗糙面或齿纹面。
所述搓辊6和所述接收鼓1辊面的粗糙面或齿纹面可彼此独立的设置。
优选地，所述接收鼓1的辊面与所述搓辊6的辊面之间的最小距离是所述棒状物品横截面直径的95％～100％，例如可以为95％、96％、97％、98％、99％。
优选地，所述接收鼓1的辊面与所述搓辊6的辊面之间的最小距离是所述棒状物品横截面直径的98％～100％。
优选地，所述第一风口8和第二风口9彼此独立地为孔隙或者通孔。
所述第一风口8和第二风口9均与负压产生装置连通，两者均在风口的周围提供负压，以吸引棒状物品保持在辊面上。
所述负压产生装置选自真空泵等设备。
本发明第二方面提供一种用于棒状物品的在线激光打孔方法，其使用本发明第一方面所述的在线激光打孔装置进行，所述在线激光打孔方法包括以下步骤：
A、将所述棒状物品输送至传递鼓4的吸风槽5上，并依靠负压在其上稳定保持，所述棒状物品随所述传递鼓4的自转被传递至接收鼓1的输送齿2上，并依靠负压在其上稳定保持；
B、随所述接收鼓1的转动，所述棒状物品被输送至与所述搓辊6接触时， 在所述接收鼓1与所述搓辊6的共同作用下，使所述棒状物品稍压缩变形，然后输送至打孔位置a；
C、在所述打孔位置a，随着所述接收鼓1的自转，所述第二风口9远离所述棒状物品，所述棒状物品不再接收负压，而在所述搓辊6、所述接收鼓1和自身重力的作用下旋转；
D、在所述棒状物品旋转过程中，激光器7发射出激光并对所述棒状物品的周面进行打孔；
E、对所述棒状物品的一周打孔结束后，所述接收鼓1的下一个所述输送齿2将所述棒状物品往后续工序进行输送；
所述激光器7发射出的激光竖直向下，与重力方向一致，且沿直径方向穿过所述棒状物品。
优选地，调节所述激光器7发射激光的频次以调节在所述棒状物品周面上打孔的数量。
优选地，所述激光器7输出的功率≥450W。
优选地，所述棒状物品为具有中空管段的烟支3，所述激光器7的位置设置为在所述中空管段打孔。
优选地，E步骤中，下一个所述输送齿2同时带来了下一个待打孔的所述棒状物品。
优选地，所述中空管段为空心纸管，壁厚为0.2-0.8mm。
本发明第三方面提供第一方面所述的在线激光打孔方法用于对棒状物品的周面进行打孔，并提高打孔精确度的用途。
上述技术方案在不矛盾的前提下，可自由组合。
本发明具有以下有益效果：
本发明的在线激光打孔装置可以对棒状物品的周面进行打孔，由于负压的吸引力作用，棒状物品可精确定位，棒状物品依靠重力和装置的旋转相对固定在打孔位置，同时又可自转，打孔的精准度高，设计简单，便于维护，且不需要另外拨动棒状物品自转的装置。
此外，激光器发射出的激光竖直向下，与重力方向一致。由于所述棒状物品在自转的过程中，会有小幅度的向上跳动。因此，当所述激光器7的发射激光位置设置在所述棒状物品的斜上方时，打孔位置会发生偏移，例如，孔径有误差、 孔洞形状不一致，激光穿过路径并非沿直径方向。而所述激光器的发射激光位置设置在所述棒状物品的正上方时，即使所述棒状物品会向上跳动，打孔位置也不会发生偏移，保持一个棒状物品打孔过程中孔径、孔洞形状一致。
附图说明
图1为实施例1一种用于棒状物品的在线激光打孔装置示意图。
图2为实施例2待打孔的烟支3。
附图标记列表：
1、接收鼓，2、输送齿，3、烟支，3-1、发烟介质段，3-2、中空纸管段，3-3、滤棒段，4、传递鼓，5、吸风槽，6、搓辊，7、激光器，8、第一风口，9、第二风口。
具体实施方式
下面通过具体实施方式进一步说明本发明的内容。
实施例1
如图1，一种用于棒状物品的在线激光打孔装置，所述在线激光打孔装置包括：接收鼓1，传递鼓4，搓辊6，激光器7；
其中，所述接收鼓1的辊面上周向设置有若干个输送齿2，每个所述输送齿2与所述接收鼓1的辊面接触处设置有至少一个第二风口9；
所述传递鼓4的辊面上周向设置有若干个吸风槽5，每个所述吸风槽5内设置有至少一个第一风口8；
所述激光器7的设置方式使得其发射出的激光竖直向下；
所述搓辊6设置在所述接收鼓1和所述传递鼓4之间；
所述接收鼓1和传递鼓4的自转方向相反，且两者的辊面之间存在距离；
所述接收鼓1的辊面与所述搓辊6的辊面之间的最小距离略小于所述棒状物品的横截面直径。
所述接收鼓1、传递鼓4、搓辊6的相对位置设置为：
所述传递鼓4横截面的中心位置低于所述接收鼓1横截面的中心位置，所述接收鼓1横截面的中心位置低于所述搓辊6横截面的中心位置。
所述搓辊6的辊面为齿纹面，形成可搓转棒状物品的第一搓转机构。所述接收鼓1的辊面为粗糙面，形成可搓转棒状物品的第二搓转机构。
所述接收鼓1的辊面与所述搓辊6的辊面之间的最小距离是所述棒状物品横截面直径的98％。
所述第一风口8和第二风口9均为通孔。
所述传递鼓4的辊面上周向设置有12个吸风槽5，每个所述吸风槽5的槽底具有一个通孔，即为第一风口8，图1中仅示出一个为例。
所述接收鼓1的辊面上周向设置有12个凸出的输送齿2，每个所述输送齿2与所述接收鼓1的辊面接触处设置有至少一个通孔，即为第二风口9，图1中仅示出2个为例，此2个第二风口9分别设置在同一个输送齿2的上游和下游；
将所述接收鼓1的自转方向记为从下游到上游。
所述传递鼓4和所述接收鼓1内有抽负压装置，以使得所述第一风口8和第二风口9处为负压状态，可以吸引棒状物品。
所述吸风槽5的形状设计为：所述棒状物品的至少部分体积可以保持在所述吸风槽5内，以使得所述传递鼓4自转时，依靠所述吸风槽5内负压的力量，所述棒状物品可以在所述传递鼓4上稳定保持。
所述吸风槽5的横截面为弧形。
所述输送齿2具有至少一个弧形侧面，使得棒状物品至少部分体积可以保持在所述输送齿2侧面的弧形部分内，以使得所述接收鼓1自转时，依靠所述输送齿2处第二风口9产生的负压的力量，所述棒状物品可以在所述接收鼓1上稳定保持。
图1为实施例1一种用于棒状物品的在线激光打孔装置示意图，所述接收鼓1，传递鼓4、搓辊6各自的自转方向见图1中的各自辊面横截面上的箭头方向，图1中，所述接收鼓1，传递鼓4仅示意出部分辊面。
实施例2
如图1和2所示，一种用于棒状物品的在线激光打孔方法，其使用实施例1所述的在线激光打孔装置进行，本实施例2中棒状物品为烟支3，烟支3包含依次抵接的发烟介质段3-1、中空纸管段3-2、滤棒段3-3。
所述中空纸管段3-2的壁厚为0.8mm，圆周长为16.8mm。将激光器7的输出功率调整至500W，对所述中空纸管段3-2进行打孔，所打孔径为0.2mm，每支烟支3进行单排打孔，总共打孔12个。
所述在线激光打孔方法包括以下步骤：
A、开启传递鼓4、接收鼓1、搓辊6，则所述传递鼓4和所述搓辊6顺时针自转，所述接收鼓1逆时针自转；
B、使用中空纸管段3-2的烟支3搓接水松纸后，对中空纸管段3-2进行打孔，烟支3被分切掉头后输送至传递鼓4的吸风槽5上，烟支3随所述传递鼓4转动被传递至所述接收鼓1的所述输送齿3侧面的弧形部分内；
C、所述烟支3随所述接收鼓1转动，输送至与所述搓辊6接触时，在所述接收鼓1与所述搓辊6的共同作用下，使所述烟支3稍变形输送至打孔位置a；
D、在打孔位置a，由于所述输送齿2和该输送齿2周围的第二风口9开始远离所述烟支3，所述接收鼓1不再对所述烟支3施以负压，所述烟支3在所述搓辊6的齿纹面、所述接收鼓1的粗糙面和烟支自身重力的作用下旋转；
E、在所述烟支3旋转过程中，所述激光器7发射出的激光并对所述纸管3-2进行打孔，所述激光器7发射出的激光竖直向下，与重力方向一致；
F、对所述中空纸管段3-2一周打孔结束后，所述接收鼓1下一个输送齿2推动该烟支3往后续工序进行输送。
图1中示意出了在线激光打孔装置打孔过程的运行状态，三支烟支3在打孔装置上保持。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求的保护范围为准。

Claims (10)

  1. 一种用于棒状物品的在线激光打孔装置，其特征在于，所述在线激光打孔装置包括：接收鼓(1)，传递鼓(4)，搓辊(6)，激光器(7)；
    其中，所述接收鼓(1)的辊面上周向设置有若干个输送齿(2)，每个所述输送齿(2)处设置有至少一个第二风口(9)；
    所述传递鼓(4)的辊面上周向设置有若干个吸风槽(5)，每个所述吸风槽(5)内设置有至少一个第一风口(8)；
    所述激光器(7)的设置方式使得其发射出的激光竖直向下；
    所述搓辊(6)设置在所述接收鼓(1)和所述传递鼓(4)之间；
    所述接收鼓(1)和传递鼓(4)的自转方向相反，且两者的辊面之间存在距离；
    所述接收鼓(1)的辊面与所述搓辊(6)的辊面之间的最小距离略小于所述棒状物品的横截面直径。
  2. 根据权利要求1所述的在线激光打孔装置，其特征在于，所述接收鼓(1)，传递鼓(4)、搓辊(6)的相对位置设置为：
    所述传递鼓(4)的旋转轴位置低于所述接收鼓(1)的旋转轴位置，所述接收鼓(1)的旋转轴位置低于所述搓辊(6)的旋转轴位置。
  3. 根据权利要求1所述的在线激光打孔装置，其特征在于，所述搓辊(6)辊面上具有可搓转棒状物品的第一搓转机构，所述接收鼓(1)的辊面上具有可搓转棒状物品的第二搓转机构。
  4. 根据权利要求3所述的在线激光打孔装置，其特征在于，所述第一搓转机构为设置在所述搓辊(6)辊面的粗糙面或齿纹面，所述第二搓转机构为设置在所述接收鼓(1)辊面的粗糙面或齿纹面。
  5. 根据权利要求1所述的在线激光打孔装置，其特征在于，所述接收鼓(1)的辊面与所述搓辊(6)的辊面之间的最小距离是所述棒状物品横截面直径的95％～100％，优选为98％～100％。
  6. 根据权利要求1所述的在线激光打孔装置，其特征在于，所述第一风口(8)和第二风口(9)彼此独立地为孔隙或者通孔，所述第一风口(8)和第二风口(9)均与负压产生装置连通。
  7. 一种用于棒状物品的在线激光打孔方法，其特征在于，使用权利要求1所述的在线激光打孔装置进行，所述在线激光打孔方法包括以下步骤：
    A、将所述棒状物品输送至传递鼓(4)的吸风槽(5)上，并依靠负压在其上稳定保持，所述棒状物品随所述传递鼓(4)的自转被传递至接收鼓(1)的输送齿(2)上，并依靠负压在其上稳定保持；
    B、随所述接收鼓(1)的转动，所述棒状物品被输送至与所述搓辊(6)接触时，在所述接收鼓(1)与所述搓辊(6)的共同作用下，使所述棒状物品稍压缩变形，然后输送至打孔位置(a)；
    C、在所述打孔位置(a)，随着所述接收鼓(1)的自转，所述第二风口(9)远离所述棒状物品，所述棒状物品不再接收负压，而在所述搓辊(6)、所述接收鼓(1)和自身重力的作用下旋转；
    D、在所述棒状物品旋转过程中，激光器(7)发射出激光并对所述棒状物品的周面进行打孔；
    E、对所述棒状物品的一周打孔结束后，所述接收鼓(1)的下一个输送齿(2)将所述棒状物品往后续工序进行输送；
    所述激光器(7)发射出的激光竖直向下，与重力方向一致，且沿直径方向穿过所述棒状物品。
  8. 根据权利要求7所述的在线激光打孔方法，其特征在于，所述棒状物品为具有中空管段的卷烟。
  9. 根据权利要求7所述的在线激光打孔方法，其特征在于，调节所述激光器(7)发射激光的频次以调节在所述棒状物品周面上打孔的数量。
  10. 根据权利要求7所述的在线激光打孔方法用于对棒状物品的周面进行打孔，并提高打孔精确度的用途。
PCT/CN2020/118756 2020-04-13 2020-09-29 一种用于棒状物品的在线激光打孔装置和打孔方法 WO2021077999A1 (zh)

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