Modular thermoforming system

Patent metadata

Field	Value
Publication number	US-11235508-B2
Application number	US-202016807062-A
Country	US
Kind code	B2
Filing date	Mar 2, 2020
Priority date	Nov 19, 2015
Publication date	Feb 1, 2022
Grant date	Feb 1, 2022

Abstract

A thermoforming system and related methods for manufacturing thermoplastic parts, such as interior panels for aircraft, may include a roll-to-roll operation and a forming press having at least one selectively rotatable tool. The rotatable tool, which may include a mold and/or a die, may be multifaceted, such that different faces of the tool have different mold arrangements for different forming characteristics.

First claim

What is claimed is:

1. A system for forming a thermoplastic part along a continuous processing path, comprising:
a thermoplastic source station at an upstream end of the continuous processing path, configured to provide a continuous web of thermoplastic material,
a preheating station including a preheating oven, configured to heat the continuous web of thermoplastic material to form a continuous web of preheated thermoplastic material;
a pressing station downstream from the preheating station, including a forming press configured to press the continuous web of preheated thermoplastic material to form the thermoplastic part;
wherein the forming press includes a first tool and a second tool, at least the first tool comprising a rotary tool having multiple faces and each of the faces having a different mold configuration and the second tool having a mold shape configured to mate with the mold configuration on at least one of the faces of the first tool, rotating the first tool to change which face is directed toward the second tool, while the second tool remains fixed;
a cooling station downstream of the pressing station, configured to cool the continuous web of preheated thermoplastic material to form a continuous web of cooled thermoplastic material;
a finishing station downstream from the cooling station, configured to remove the thermoplastic part from the continuous web of cooled thermoplastic material; and
a processor programmed to control translation of the continuous web of thermoplastic material through the continuous processing path, and operations of the thermoplastic source, preheating, pressing, cooling and finishing stations;
wherein the continuous processing path is defined from a roll of the continuous web of thermoplastic material at the thermoplastic source station, through the pressing station, and the finishing station.

2. The system of claim 1 , wherein the pressing station includes a tool having an internal heating mechanism.

3. The system of claim 1 , wherein the first tool is a press tool, and the second tool is a mold tool.

4. The system of claim 3 , wherein the press tool and mold tool are configured to mate with each other by moving the press tool vertically while the mold tool remains stationary.

5. The system of claim 1 , wherein each face of the rotary tool has a receiving structure for securing interchangeable inserts, each interchangeable insert having a different mold configuration.

6. The system of claim 1 , wherein one or more of the faces of the rotary tool are heated from inside the rotary tool.

7. The system of claim 1 , wherein the rotary tool rotates around a substantially horizontal axis to change to application of a different one of the faces of the rotary tool.

8. The system of claim 1 , wherein the rotary tool rotates around an axis transverse to a direction of the continuous processing path to change to application of a different one of the faces of the rotary tool.

9. The system of claim 1 , wherein the rotary tool has four faces.

10. The system of claim 1 , wherein the first tool is movable vertically to press the continuous web of preheated thermoplastic material without rotating the first tool.

11. The system of claim 1 , wherein each different mold configuration conforms to a different product line.

12. The system of claim 1 , wherein the continuous web of preheated thermoplastic material is pressed along a vertical direction.

13. A system for forming a thermoplastic part along a continuous processing path, comprising:
a thermoplastic source station at an upstream end of the continuous processing path, configured to provide a continuous web of thermoplastic material from an upstream roll of continuous web of thermoplastic material,
a preheating station including a preheating oven, configured to heat the continuous web of thermoplastic material to form a continuous web of preheated thermoplastic material;
a pressing station downstream of the preheating station, including a first robotic system configured to automatically press the continuous web of thermoplastic material between a first and second tool at a forming press to form the thermoplastic part, wherein at least the first tool comprises a rotary tool having multiple faces and each of the faces has a different mold configuration and the second tool having a mold shape configured to mate with the mold configuration on at least one of the faces of the first tool, the first robotic system being configured to rotate the first tool to change which face is directed toward the second tool, while the second tool remains fixed;
a cooling station downstream of the pressing station, configured to cool the continuous web of preheated thermoplastic material to form a continuous web of cooled thermoplastic material;
a finishing station downstream of the pressing station, including a second robotic system configured to remove the thermoplastic part from the continuous web of cooled thermoplastic material;
a recovery station configured to collect the continuous web of cooled thermoplastic material, devoid of the thermoplastic part onto a downstream roll at a downstream end of the continuous processing path; and
wherein the continuous processing path is defined from the upstream roll of continuous web of thermoplastic material at the thermoplastic source station, through the pressing station, and the downstream roll at the recovery station.

14. The system of claim 13 , wherein the first tool or the second tool has a textured surface.

15. The system of claim 13 , wherein the second tool is configured to embed an accessory component in the thermoplastic part at the pressing station.

16. The system of claim 13 , wherein the continuous web of thermoplastic material has a preformed ornamental design.

17. A forming system comprising:
a feeding station, configured to feed a continuous web of thermoplastic material into a preheating oven to form a continuous web of preheated thermoplastic material;
a pressing station, configured to receive the continuous web of preheated thermoplastic material into a forming press, the forming press comprising a first tool and a second tool, the first tool including a multifaceted rotary press tool and the second tool including a multifaceted rotary mold tool, and at least a face of the first tool being configured to mate with a face of the second tool to press the continuous web of thermoplastic material;
wherein the pressing station is further configured to rotate the first tool to a first operational position, move the first tool towards the second tool, press the continuous web of preheated thermoplastic material between the first and second tools to form a thermoplastic part on the continuous web of preheated thermoplastic material with a first molded shape and move the first tool away from the second tool to open the forming press;
a control device configured to stop an operation of the feeding station during the pressing of the continuous web of preheated thermoplastic material between the first and second tools;
a cooling station, configured to cool the continuous web of preheated thermoplastic material to form a continuous web of cooled thermoplastic material; and
a finishing station configured to remove the thermoplastic part having the first mold shape from the continuous web of cooled thermoplastic material.

18. The forming system of claim 17 , further comprising a preheating station upstream from the pressing station.

19. The forming system of claim 17 , further comprising a trimming station downstr

Assignees

• Boeing Co

Inventors

• Hills Karen L
• Sanchez Sergio H
• Brown Douglas Alan
• Lail Jason Christopher
• Cloud Michael John
• Turner Jason
• Phillips Richard V
• Cook Robert
• Basom Hun Sok
• Wendt Dewayne F

Classifications

• B29C51/36

  specially adapted for vacuum forming {, Manufacture thereof} · CPC title

• B29C51/30

  Moulds · CPC title

• B29C51/266

  Auxiliary operations after the thermoforming operation (B29C51/42, B29C51/44, B29C51/46 take precedence) · CPC title

• B29C51/261

  Handling means, e.g. transfer means, feeding means (B29C51/44 takes precedence) · CPC title

• B29C51/22 Primary

  rotatable about an axis · CPC title