Method and device for manufacturing bent structure on paper straw

Abstract

The invention provides a method and a device for manufacturing a bent structure on a paper straw, the method provides a first pressing plate and a second pressing plate, the surfaces of the opposite sides of the first pressing plate and the second pressing plate are respectively provided with specially-designed tooth rolling lines, the paper straw passes through the tooth rolling lines between the first pressing plate and the second pressing plate in a rolling mode, and the bent structure is manufactured on the paper straw. The corrugated pipe structure capable of being bent is rapidly formed at the preset position of the paper suction pipe through the extrusion effect of the tooth rolling lines on the paper suction pipe, the production speed is high, and the productivity is improved; on the other hand, due to the special configuration that the rolling threads become narrower from wide, the inward pushing effect can be formed at the two ends of the paper straw in the axial direction, the two ends of the corrugated pipe structure are made to be tightened close to ridges, the corrugated pipe structure can be made to have the shaping effect along with gradual drying and hardening of the adhesive, and the corrugated pipe structure cannot be fractured or broken even if bent by 180 degrees.

Description

technical field [0001] The present application relates to a method and device for manufacturing a straw, in particular to a method and device for manufacturing a curved structure in a paper straw. Background technique [0002] In order to solve the environmental pollution and environmental protection problems caused by traditional plastic straws, the straw manufacturing industry has successfully developed a variety of straws made of biodegradable materials, such as paper straws. Although the known paper straws can be naturally decomposed or incinerated, which is conducive to solving environmental problems, the known paper straws cannot be bent or bent 180 degrees, which obviously cannot meet the needs of some products or consumers that need to bend straws. Habit. [0003] In the authorized Chinese utility model patent authorization announcement number CN204363651U, a paper straw is proposed, in which the end of the straw is pressed with multiple rings, and the spacing betwe...

AI Technical Summary

Problems solved by technology

Although this patented technology has multiple rings on the outer surface of the paper straw, these rings are only a concave structure on the outer surface of the paper straw, and the inner wall of the paper straw is still a straight one. Surface, and the distance between multiple rings is large and scattered, it is not easy to maintain a proper bending state after bending

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