Extrusion molding machine for producing woven bag material by using waste plastic

Through the coordination of the discharge barrel, distribution pipe and distribution mechanism, combined with the design of the annular mesh plate and the closing disk, the problem of separating PVC plastic particles and dust particles is solved, the efficient separation and drying of PP plastic particles is achieved, the quality of woven bag materials is improved, and the bubble problem is avoided.

CN120816697AActive Publication Date: 2025-10-21WENZHOU BANGRUI PLASTIC IND CO LTD
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Patent Information

Application Number
CN202511315767.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-16
Publication Date
2025-10-21
Estimated Expiration
2045-09-16

AI Technical Summary

Technical Problem

When using waste plastics to produce woven bag materials, existing technologies make it difficult to effectively separate PVC plastic particles and dust particles, resulting in unstable quality of the finished product. The moisture content also affects the melt extrusion process of PP plastic particles, causing bubble problems.

Method used

The coordination of the discharge barrel, distribution pipe and distribution mechanism is adopted to achieve the complete separation of PP plastic particles from dust particles and PVC plastic particles through one downward pressure. The structural design of the annular mesh plate and the closed disk, combined with the coordination of the switching box and the drain barrel, realizes the automatic separation, drying and seamless connection of the production process.

Benefits of technology

It achieves efficient separation and drying of PP plastic particles, improves the quality of woven bag materials, avoids bubble problems, and requires no manual intervention.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of extrusion molding equipment, and particularly relates to an extrusion molding machine for producing woven bag materials by using waste plastics. Comprising a screw extruder, a feeding port of the screw extruder is fixedly communicated with a draining barrel, a discharging barrel is arranged above the draining barrel, the discharging barrel is fixed through a support, the side wall of the discharging barrel is fixedly communicated with a discharging pipe, and an electronic valve is arranged on the discharging pipe; through one-time pressing, PP plastic particles can be thoroughly separated from dust particles and PVC plastic particles, and the separated PP plastic particles can be used for recycling and production of woven bag materials; according to the device, substances such as PP, PVC and dust can be effectively separated and discharged while being separated; according to the device, particles such as PVC and dust can be collected and treated, so that water is conveniently recycled; meanwhile, it is guaranteed that PP plastic particles entering the screw extruder are in a dry state, and the bubble problem of extruded particle finished products is avoided.
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Citation Information

Patent Citations

  • An extrusion molding machine for plastic extrusion molding

    CN117841333B

  • Extrusion device for producing plastic woven bags

    CN110253854A

  • Cylinder body of PVC (polyvinyl chloride) granulation extruder

    CN213382389U

  • Waste plastic flotation separation device

    CN217704211U

  • A filtering device for the purification of recycled plastic materials

    EP0689918A1

Cited By

  • Plastic packaging bag processing waste recovery equipment

    CN121650213A

  • Plastic packaging bag processing waste recycling equipment

    CN121650213B