Method for setting up a resin sheet extrusion molding machine

The method facilitates safe and efficient startup of resin sheet extrusion molding by using a pre-set lead film, sheet receiving device, and cutting device to manage unstable resin sheets, addressing handling and safety issues in existing technologies.

JP7875700B2Active Publication Date: 2026-06-18CANADEVIA CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
CANADEVIA CO LTD
Filing Date
2022-03-23
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

Existing methods for starting up resin sheet extrusion molding apparatuses face challenges such as unstable resin sheet properties immediately after startup, high temperature handling difficulties, dangerous manual labor requirements, and inability to stop the machine during imbalances.

⚗Method used

A method involving a pre-set lead film in the roll-type sheet molding machine, a sheet receiving device, a cutting device, and a cover to guide and cut the unstable resin sheet, allowing for safe and easy startup by moving the resin sheet onto a lead film and cutting it without manual intervention.

🎯Benefits of technology

Enables safe and efficient startup of the resin sheet extrusion molding apparatus without manual labor, ensuring stable resin sheet properties and preventing adherence to molding rolls.

✦ Generated by Eureka AI based on patent content.

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Abstract

To make it easy and safe to start up the plastic sheet extrusion device.SOLUTION: The molten resin is extruded into a sheet from the die 19 in the extrusion device 11. The extruded resin sheet 12 is passed through the roll type sheet forming machine 23 in the forming device 14 to form the sheet-like product. At that time, a lead film 34, which is fed by the rotation of the forming roll 28 in this roll type sheet forming machine 23, is set in advance in the roll type sheet forming machine 23, and the resin sheet 12 guided to the sheet forming machine 23 is adhered to the lead film 34.SELECTED DRAWING: Figure 3
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