横纵直线易撕膜挤出装置
By improving the screw and die structure and cooling system design, the problem of uneven film thickness in the horizontal and vertical straight easy-tear film extrusion device was solved, achieving the precision of the easy-tear line and the stability of the breaking force, thus improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZIBO HUA ZHI LIN PACKING PROD CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-17
AI Technical Summary
Existing easy-tear film extrusion devices with horizontal and vertical straight lines suffer from insufficient uniformity in film thickness, with large fluctuations in thickness in the horizontal or vertical direction, resulting in unstable accuracy of the easy-tear line. The main reasons are unreasonable die flow channel design and uneven cooling efficiency of the cooling system.
The screw extruder features an improved screw and die structure design. It incorporates a barrier-type screw and a gradually streamlined die flow channel with a damping adjustment block to ensure uniform lateral flow. The cooling system includes a spiral-type drilled cooling roller and a segmented air knife mechanism, with airflow adjusted via PLC for uniform cooling.
It improves the uniformity of film thickness, ensures the accuracy of the tear line and the consistency of breaking force, improves the transverse temperature distribution of the film, and enhances production stability.
Smart Images
Figure CN224510345U_ABST