US 9,810,488 B2
Device for cooling a film, comprising a lever system
Ingo Rübbelke, Geselke (DE); and Markus Joppe, Mettingen (DE)
Assigned to Windmöller & Hölscher KG, Lengerich (DE)
Appl. No. 14/406,250
Filed by Windmöller & Hölscher KG, Lengerich (DE)
PCT Filed May 31, 2013, PCT No. PCT/EP2013/061298
§ 371(c)(1), (2) Date Dec. 8, 2014,
PCT Pub. No. WO2013/182493, PCT Pub. Date Dec. 12, 2013.
Claims priority of provisional application 61/657,631, filed on Jun. 8, 2012.
Claims priority of application No. 10 2012 104 963 (DE), filed on Jun. 8, 2012.
Prior Publication US 2015/0153117 A1, Jun. 4, 2015
Int. Cl. B29C 47/88 (2006.01); F28F 13/08 (2006.01); B29C 47/00 (2006.01); B29C 47/92 (2006.01); H01H 37/52 (2006.01)
CPC F28F 13/08 (2013.01) [B29C 47/0026 (2013.01); B29C 47/884 (2013.01); B29C 47/92 (2013.01); H01H 37/52 (2013.01); B29C 47/8835 (2013.01); B29C 2947/926 (2013.01); B29C 2947/92152 (2013.01); B29C 2947/92161 (2013.01); B29C 2947/92209 (2013.01); B29C 2947/92647 (2013.01); B29C 2947/92971 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A device for cooling a film (1) which is producible in a film extrusion system, comprising
a housing (11) which comprises at least one channel (12), at least one inlet aperture (13) and at least one outlet aperture (14) through which refrigerant gas (2) is flowable,
a regulating alignment (10) with which the flow rate of the refrigerant gas (2) through the at least one outlet aperture (14) and the temperature of the refrigerant gas (2) through the at least one outlet aperture (14) is adjustable,
characterized in that:
the regulating alignment (10) contains a lever system, which comprises a movable actuator (15) and a movable valve element (16), wherein the actuator (15) acts on the valve element (16) to regulate the valve element (16),
wherein the regulating alignment (10) comprises at least one heating element (17),
wherein the temperature of the refrigerant gas (2) is adjustable,
wherein the at least one heating element (17) is a gear for the actuator (15) or the valve element (16),
wherein the actuator or the valve element (16) is a bimetal element wherein the valve element (16) is facing the flow of the refrigerant gas (2) and the actuator (15) is facing an incoming flow of refrigerant gas (2), wherein the regulating alignment (10) comprises the lever system,
wherein the movable valve element (16) and the actuator (15) are within the at least one channel (12),
wherein the valve element (16) comprises a loose edge (16.1) which is facing the outlet aperture (14) and the actuator (15) comprises a loose edge (15.1) which is facing the inlet aperture (13), and
wherein a distance between the loose edge (15.1) of the actuator (15) and an axis (18) of the valve element (16) is smaller than a distance between the loose edge (16.1) of the valve element (16) and the loose edge (15.1) of the actuator (15).