System and methods for thermoforming articles

Patent metadata

Field	Value
Publication number	US-11890803-B2
Application number	US-202218086121-A
Country	US
Kind code	B2
Filing date	Dec 21, 2022
Priority date	Apr 25, 2018
Publication date	Feb 6, 2024
Grant date	Feb 6, 2024

Abstract

Systems and processes for thermoforming an article and for preparing an article for thermoforming are disclosed. The system for thermoforming can include one or more heating stations and a cooling station. The system for thermoforming can further include an article movement mechanism that can couple to an article and rotate the article inside a heating chamber, inside a cooling chamber, or both. The system for preparing an article for thermoforming can include a vessel that comprises a port, and a negative pressure generation system coupled to the port. The system for preparing an article for thermoforming can further include a compression material that forms an interior portion for receiving an article. The negative pressure generation system can cause the compression material to expand to allow for insertion of the article into the interior portion of the compression material.

First claim

The invention claimed is:

1. A system for thermoforming an article, the system comprising:
one or more heating stations, each of the one or more heating stations comprising a heating chamber,
a cooling station, the cooling station comprising a cooling chamber; and
an article movement mechanism having a central portion, a radially extending member extending from the central portion, and at least one coupling member coupled to the radially extending member, the at least one coupling member adapted to couple an article to the article movement mechanism,
wherein the coupling member is adapted to
rotate the article inside the heating chamber, the cooling chamber, or both around a first axis, and
wherein the article movement mechanism is adapted to rotate the radially extending member around a second axis.

2. The system according to claim 1 , wherein the cooling station further comprises a secondary cooling source, wherein the cooling station and the secondary cooling source are adapted to circulate a liquid between the cooling chamber and the secondary cooling source, and wherein the cooling station is adapted to maintain the liquid at a temperature of about 25° C. or less.

3. The system according to claim 1 , further comprising a dryer, wherein the dryer is adapted to remove at least a portion of liquid from the outer surface of the article or an outer surface of a compression material covering the article.

4. The system according to claim 3 , wherein the dryer comprises one or more air nozzles.

5. The system according to claim 1 , wherein the article movement mechanism is coupled to a negative pressure generation system, wherein the article movement mechanism and the negative pressure generation system are cooperatively adapted to expose an area between an outer surface of an article and an inner surface of a compression material to a pressure less than atmospheric pressure while the article is exposed to the one or more heating stations and the cooling station.

6. The system according to claim 1 , wherein the article movement mechanism is adapted to transfer the article from the one or more heating stations to the cooling station.

Assignees

• Nike Inc

Inventors

• Bianconi Mirko
• Zecchetto Federico

Classifications

• B29C51/421 Primary

  of preforms, specially adapted for thermoforming (preheating sheets in general B29B13/023; B29C51/427 takes precedence) · CPC title

• B29C51/10 Primary

  Forming by pressure difference, e.g. vacuum · CPC title

• B29D35/126

  Uppers · CPC title

• B29K2701/12

  Thermoplastic materials · CPC title

• B29L2031/505

  Uppers · CPC title