Wrapping method and wrapping unit for producing together two sealed wrappings containing two groups of corresponding two drawn articles

By setting a pre-weakening separation line on the wrapping sheet and using a separating device to tear the initial wrapping sheet, the problem of the sealed wrapping sheet breaking under high production speed was solved, and the efficient production of high-quality double-pack cigarette packaging was achieved.

CN122422218APending Publication Date: 2026-07-17GD SPA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GD SPA
Filing Date
2024-11-05
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

When producing double-pack cigarette packaging at high production speeds, existing technologies are prone to unwanted breakage of the sealed wrapping sheet, and the wrapping unit structure is complex and costly.

Method used

The packaging sheet with a pre-weakening separation line design has a central pre-weakening separation line set on the initial packaging sheet. The initial packaging sheet is then torn along the pre-weakening line using a separating device to form two independent final packaging sheets. The packaging is stabilized by lateral and longitudinal sealing to avoid irregular tearing.

Benefits of technology

It effectively avoids unwanted breakage of the wrapping sheet at high production speeds, ensures high quality of sealed packages, and simplifies the manufacturing process of the wrapping unit.

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Abstract

用于一起生产容纳对应两个抽吸制品组（5）的两个密封包裹物（3）的包裹方法和包裹单元（B）。方法设置成：进给双倍宽度的初始包裹片材（17），初始包裹片材由并排布置并且通过预弱化分离线（18）彼此连接的两个最终包裹片材（8）构成；通过借助于横向密封（T）将初始包裹片材（17）的两个相对端部接合，将初始包裹片材（17）围绕对应两个抽吸制品组（5）折叠成管状形式；以及通过施加沿着预弱化分离线（18）产生撕裂的力，将已经围绕对应两个抽吸制品组（5）折叠成管状形式的初始包裹片材（17）分离成两个半部，即，分离成两个最终包裹片材（8）。分离线（18）具有两个接合点（36），这两个接合点布置在初始包裹片材（17）的两个相对端部处，以位于横向密封（T）之内。
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Citation Information

Patent Citations

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    EP0309818A2

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    EP0787651A1

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    EP3653518A1