Search

CN-121988918-A - Laser drilling device

CN121988918ACN 121988918 ACN121988918 ACN 121988918ACN-121988918-A

Abstract

The invention provides a laser drilling device which comprises a paper roll fixing module, a paper tape transmission module and a drilling module, wherein the paper roll fixing module comprises a rotary table and a supporting mechanism axially extending from one side of the rotary table, the paper roll is sleeved on the supporting mechanism, the rotary table is driven to drive the supporting mechanism and the paper roll to rotate, the paper tape transmission module guides paper tape of the paper roll to be transmitted below the drilling module through the paper tape transmission module, the drilling module comprises one or more laser focusing heads which are movably arranged on a fixing frame, the laser focusing heads can longitudinally move relative to the fixing frame to adjust the distance between the laser focusing heads and the paper tape, and the laser focusing heads can transversely move relative to the fixing frame to drill different positions of the paper tape. The invention can solve the defects that the tipping paper in the prior art has single laser drilling form and cannot play the roles of decoration and anti-counterfeiting, realizes the laser special-shaped drilling of the tipping paper, and forms special-shaped patterns by combining point-shaped laser drilling, so that the laser drilling has ventilation effect, decoration and anti-counterfeiting.

Inventors

  • LIU CHANG
  • FAN ZHAOSHENG
  • XIE XIAOCUI
  • Zhang Zhendie
  • BAI HAO

Assignees

  • 上海烟草集团有限责任公司
  • 上海烟草集团北京卷烟厂有限公司

Dates

Publication Date
20260508
Application Date
20251226

Claims (10)

  1. 1. A laser drilling apparatus, comprising: The paper roll fixing module (10) comprises a rotary table (11) and a supporting mechanism axially extending from one side of the rotary table (11), the paper roll is sleeved on the supporting mechanism, and the rotary table (11) is driven to drive the supporting mechanism and the paper roll to rotate; The paper tape of the paper roll is guided to be transmitted below the punching module (20) through the paper tape transmission module; The punching module (20) comprises one or more laser focusing heads (21), wherein the laser focusing heads (21) are movably arranged on a fixing frame (22), the laser focusing heads (21) can move longitudinally relative to the fixing frame (22) to adjust the distance between the laser focusing heads (21) and the paper tape, and the laser focusing heads (21) can move transversely relative to the fixing frame (22) to punch different positions of the paper tape.
  2. 2. The laser drilling apparatus of claim 1, wherein the laser beam is directed to the laser beam, The paper tape transmission module comprises a first transmission mechanism (30) positioned below the punching module (20), and the laser punching device further comprises a paper tape positioning module (40) arranged between the paper roll fixing module (10) and the first transmission mechanism (30); The paper tape positioning module (40) comprises a positioning roller (41) and a positioning ring (42) which is connected to the outer side of the positioning roller (41) in a sliding mode, the positioning roller (41) is provided with a first ring portion (411), the positioning ring (42) is provided with a second ring portion (421), and two ends of the paper tape in the width direction are limited between the first ring portion (411) and the second ring portion (421).
  3. 3. A laser drilling apparatus as claimed in claim 2, wherein, A pushing piece (43) is fixedly connected to the inner side of one end, far away from the positioning roller (41), of the positioning ring (42), and the pushing piece (43) is arranged along the inner side of the positioning roller (41) in a sliding manner; The pushing member (43) is provided with a triggering mechanism configured to trigger the pushing member (43) to be separated from the inner wall of the positioning roller (41) for unlocking in a first state and trigger the pushing member (43) to be in limit fit with the inner wall of the positioning roller (41) for locking in a second state.
  4. 4. A laser drilling apparatus according to claim 3, wherein, And the paper tape positioning modules (40) are arranged on two sides of the first transmission mechanism (30) along the paper tape transmission path.
  5. 5. The laser drilling apparatus of claim 1, wherein the laser beam is directed to the laser beam, The supporting mechanism comprises a driving rod and a plurality of movable tables (12) arranged around the driving rod, and the paper roll is sleeved on a circumferential framework formed by the movable tables (12); The movable tables (12) are movably connected with the driving rods, and the driving rods are configured to drive a plurality of movable tables (12) to synchronously expand or contract inwards relative to the driving rods.
  6. 6. A laser drilling apparatus as recited in claim 5, wherein, And a clamping pad (13) is arranged on one side of the movable table (12) contacted with the inner wall of the paper roll.
  7. 7. A laser drilling apparatus as claimed in claim 2, wherein, The paper tape transmission module comprises a second transmission mechanism (50) arranged on the front side of the first transmission mechanism (30), and the second transmission mechanism (50) is arranged close to the paper roll fixing module (10).
  8. 8. The laser drilling apparatus of claim 7, wherein the laser beam is directed to the laser beam, The laser drilling device comprises a tension controller (60) which is arranged on the lower side of the second transmission mechanism (50).
  9. 9. A laser drilling apparatus according to any one of claims 1 to 8, The laser drilling device comprises a first box body (70) and a second box body (80) which are separated and adjacently arranged, the paper roll fixing module (10) is arranged in the first box body (70), and the drilling module (20) is arranged in the second box body (80).
  10. 10. The laser drilling apparatus of claim 9, wherein the laser beam is directed to the laser beam, An operation port (71) is arranged at one side of the first box body (70) facing away from the second box body (80); The front side of second box (80) is equipped with opening (81), opening (81) department is equipped with light barrier (82), the top of second box (80) is equipped with driving piece (83), is used for the drive light barrier (82) follow the inner wall of second box (80) slides in order to open or close opening (81).

Description

Laser drilling device Technical Field The invention relates to the technical field of laser processing, in particular to a laser drilling device. Background Tipping paper is also called tipping paper, which is specially used as the outer package of filter tips in cigarette factories, and belongs to special industrial paper. In recent years, along with the continuous advancement of national smoke control policies, the tar and harm reduction of cigarettes becomes a trend of the tobacco industry. Traditional cigarette tar reduction methods are complex and take longer time, and laser perforation tar reduction methods have been widely used. By adopting the mode of laser drilling at the positioning position of the tipping paper for cigarettes, more external air enters the cigarette filter tip when the cigarettes are smoked, so that the main stream smoke of the cigarettes is effectively diluted, the tar amount sucked into the human body is relatively reduced, and the tar reducing effect on the cigarettes is realized. At present, the laser drilling and tar reduction technology of cigarettes has become a common tar reduction technology used at home and abroad by virtue of high drilling stability and high accuracy. The laser engraving process is based on numerical control technology, and uses laser as processing medium to make the processing material-cigarette tipping paper instantaneously melt and gasify under the irradiation of laser so as to attain the goal of processing. The laser drilling technology of tipping paper is used as a core technology for reducing tar of cigarettes, the current main scheme is basically that double rows of small holes are formed on the tipping paper, when the existing device works, the position of a laser head is fixed, the moving direction and the moving speed of a paper tape are also fixed, the pattern of holes formed by drilling depends on the emitting frequency of the laser head and the moving speed of the paper tape, and finally, only holes distributed in regular rows can be formed, so that the laser device has the advantages of ventilation effect, no decoration, easy imitation of standard hole patterns and no anti-counterfeiting effect. Therefore, there is a need for a laser drilling design for tipping paper that is breathable, while having both aesthetic and anti-counterfeiting properties. Disclosure of Invention The invention provides a laser drilling device, which is used for solving the defects that the tipping paper in the prior art adopts double rows of small holes, has single hole distribution form and cannot play the roles of decoration and anti-counterfeiting, realizing the laser special-shaped drilling of the tipping paper, and forming special-shaped patterns by combining point-shaped laser drilling, so that the laser drilling has the ventilation effect, decoration and anti-counterfeiting. The present invention provides a laser drilling device, comprising: The paper roll fixing module comprises a rotary table and a supporting mechanism axially extending from one side of the rotary table, the paper roll is sleeved on the supporting mechanism, and the rotary table is driven to drive the supporting mechanism and the paper roll to rotate; The paper tape of the paper roll is guided to be transmitted below the punching module through the paper tape transmission module; The punching module comprises one or more laser focusing heads which are movably arranged on the fixing frame, the laser focusing heads can longitudinally move relative to the fixing frame to adjust the distance between the laser focusing heads and the paper tape, and the laser focusing heads can transversely move relative to the fixing frame to punch different positions of the paper tape. According to the laser drilling device provided by the invention, the paper tape transmission module comprises a first transmission mechanism positioned below the drilling module, and the laser drilling device further comprises a paper tape positioning module which is arranged between the paper roll fixing module and the first transmission mechanism; The paper tape positioning module comprises a positioning roller and a positioning ring which is connected to the outer side of the positioning roller in a sliding mode, the positioning roller is provided with a first ring portion, the positioning ring is provided with a second ring portion, and two ends of the paper tape in the width direction are limited between the first ring portion and the second ring portion. According to the laser drilling device provided by the invention, the inner side of one end of the positioning ring, which is far away from the positioning roller, is fixedly connected with the pushing piece, and the pushing piece is arranged along the inner side of the positioning roller in a sliding way; The pushing piece is provided with a triggering mechanism, and the triggering mechanism is configured to trigger the pushing piece to be separated from the inner wall