US 12,296,510 B2
System and method for rotational moulding
Johan Potargent, Bilzen (BE)
Assigned to AMS Belgium, Bilzen (BE)
Filed by AMS Belgium, Bilzen (BE)
Filed on Aug. 10, 2023, as Appl. No. 18/447,342.
Application 18/447,342 is a division of application No. 17/607,444, granted, now 11,738,484, previously published as PCT/IB2020/053721, filed on Apr. 20, 2020.
Claims priority of application No. 2019/5292 (BE), filed on May 2, 2019.
Prior Publication US 2023/0382021 A1, Nov. 30, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B29C 41/46 (2006.01); B29C 33/02 (2006.01); B29C 41/04 (2006.01); B29C 41/38 (2006.01); B29C 41/50 (2006.01); B29C 41/52 (2006.01)
CPC B29C 41/46 (2013.01) [B29C 33/02 (2013.01); B29C 41/04 (2013.01); B29C 41/042 (2013.01); B29C 41/38 (2013.01); B29C 41/50 (2013.01); B29C 41/52 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A system for the production of an object from a material containing a hardenable base material by rotational moulding, the system comprising:
a die having die walls surrounding a cavity wherein an object is to be formed, the die being provided with a flow channel for conducting a heat exchange fluid and heating or cooling the die,
a rotation device for rotating the die, for bringing melted hardenable base material into contact with the die walls surrounding the die cavity and forming the object by rotational moulding, and
thermal assemblies for controlling flow of heat exchange fluids through the flow channel, wherein the flow channel of the die has a first connection for supplying a respective one of the heat exchange fluids to the die and a second connection for draining off the respective heat exchange fluid from the die, wherein the heat exchange fluids are selected from a heating fluid and a cooling fluid, and
wherein said thermal assemblies comprise:
a heating assembly configured to connect to the flow channel from a first position with respect to the rotation device and provided for controlling flow of the heating fluid through the flow channel and thereby heating the die upon connection of the heating assembly to the flow channel, and
a cooling assembly configured to connect to the flow channel from a second position different from the first position with respect to the rotation device and provided for controlling flow of the cooling fluid through the flow channel and thereby cooling the die upon connection of the cooling assembly to the flow channel.