Filter stick without outer wrapping paper and with continuous closed cavities, forming equipment and forming process

A technology of closed cavity and molding process, which is applied in the fields of e-liquid filter elements, applications, tobacco, etc., can solve the problems of multiple production processes and high production costs, and achieve the effects of broad application prospects, reduced loss, and reduced production costs

Pending Publication Date: 2020-06-26
NANTONG CIGARETTE FILTER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the core of this invention is not a through hole, it adopts a composite filter rod structure with solid and hollow cores spaced apart, so the manufacturing process is more and the production cost is higher

Method used

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  • Filter stick without outer wrapping paper and with continuous closed cavities, forming equipment and forming process
  • Filter stick without outer wrapping paper and with continuous closed cavities, forming equipment and forming process
  • Filter stick without outer wrapping paper and with continuous closed cavities, forming equipment and forming process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] Such as figure 1 The non-wrapping paper filter rod with continuous closed cavities shown uses acetate fiber and thermosetting adhesive as the main raw materials, and has a structure of four closed cavities arranged continuously along the axis line inside the filter rod and independent of each other;

[0035] The axial length of the cavity is greater than the radial length, and the radial dimension is about 1 / 3-2 / 3 of the diameter of the filter rod.

[0036] The diameter D of each cavity ranges from 3 to 5 mm, and the length L ranges from 10 to 15 mm.

[0037] Such as figure 2 The filter rod forming equipment shown has a forming mandrel, a driving mechanism that controls the reciprocating advance and retreat of the forming mandrel, and a forming pipe; the inside of the forming pipe is a filter rod forming cavity, and the forming mandrel enters from the entrance of the tow during use The forming cavity, the part entering the forming cavity can reciprocate in the formin...

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PUM

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Abstract

The invention discloses a filter stick without outer wrapping paper and with continuous closed cavities. Two or more closed cavities which are continuously arranged and independent of one another arearranged in the filter stick along the axis of the filter stick. The forming equipment comprises a forming smoke gun and a forming core rod, the forming smoke gun is provided with a steam molding section and a cooling curing section, and the forming core rod reciprocates in the steam forming section to form cavity sections and dense sections which are arranged at intervals. The cavity has a cooling and tar reduction effect relative to smoke, and compared with a traditional cavity composite filter stick, the filter stick has the advantages that a composite process is not needed, forming paper is not needed, and the filter stick has great competitive advantages in the aspects of cost, efficiency and the like.

Description

technical field [0001] The invention relates to an internal structure of a filter rod and its forming technology. Background technique [0002] The general filter rod is composed of a filter element wrapped in forming paper. The filter element with relatively dense material and high hardness can directly form a filter rod without outer paper without wrapping in forming paper; some filter elements have axial through holes in the filter element, and some filter elements have With independent closed holes. [0003] The invention with the patent application number 2017102833121 discloses a composite filter rod with a through-type conical cavity structure, including a rod body, the rod body is in the shape of a cylinder, and a cavity is provided in the rod body, and the cavity It is in the shape of a trumpet, that is, along the direction of the central axis of the rod, both ends of the cavity are open, and the circumference of one end is always larger than the circumference of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24D3/17A24F40/46A24F40/40
CPCA24D3/02
Inventor 黄杨罗亮孙庆杰周成喜金强
Owner NANTONG CIGARETTE FILTER
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