Microduct-tube winder, double station winder, processing system for empty plastics microduct tubes and method for winding up such tubes

Patent metadata

Field	Value
Publication number	US-2016185027-A1
Application number	US-201414911762-A
Country	US
Kind code	A1
Filing date	Aug 20, 2014
Priority date	Aug 21, 2013
Publication date	Jun 30, 2016
Grant date	—

Abstract

The invention relates to a microduct-tube winder ( 5 ) for winding up extruded empty plastics microduct tubes having an outside diameter of about 2 to about 20 mm, having a reel ( 8 ) which is rotatable about a rotation axis ( 16 ) and has a core ( 9 ) arranged between two radially projecting flanges ( 10 ), the tube being windable on said core ( 9 ), and having a tube guiding device ( 6 ), via which the tube is fed to the reel ( 8 ), wherein a first transfer point is provided on the tube guiding device ( 6 ), the tube losing contact with the tube guiding device ( 6 ) at said first transfer point in the operating state of the microduct-tube winder ( 5 ), and wherein provision is made of a second transfer point, assigned to the reel, the tube coming into contact with the core ( 9 ) or a tube layer wound onto the latter at said second transfer point, wherein the tube guiding device ( 6 ); is movable in a transverse plane of the reel ( 8 ) and the reel ( 8 ) is movable in the direction of its rotation axis ( 16 ) such that in the operating state the winding angle (a) at the second transfer point always remains the same. The invention also relates to a double station winder ( 1 ) having two such microduct-tube winders ( 5 ), to a processing system having a microduct-tube winder ( 5 ), to a manufacturing system having an extrusion apparatus and a processing system and to a method for winding up an empty plastics tube.

First claim

1 .- 10 . (canceled)

11 . A microduct-tube winder for winding up extruded empty plastics microduct tubes having an outside diameter of about 2 to about 20 mm, said microduct-tube winder comprising:
a reel mounted for rotation about a rotation axis and including two radially projecting flanges and a core which is arranged between the flanges and on which a tube can be wound; and a tube guiding device configured to feed the tube to the reel, said tube guide device having a first transfer point at which the tube loses contact with the tube guiding device, when the microduct-tube winder is in an operating state, and a second transfer point on the reel and at which the tube comes at a winding angle into contact with the core or a tube layer that has been wound previously onto the core at the second transfer point, said tube guiding device being movable in a transverse plane of the reel and said reel being movable in a direction of the rotation axis, such that in the operating state the winding angle at the second transfer point remains the same at all times.

12 . The microduct-tube winder of claim 11 , wherein the reel is mounted for simultaneous execution of the rotation about the rotation axis and transverse movement in the direction of the rotation axis.

13 . The microduct-tube winder of claim 11 , wherein the tube guiding device has a winding speed, a tube outside diameter and a movement speed which are coordinated with one another such that in the operating state a distance between the first and the second transfer points remains the same at all times.

14 . The microduct-tube winder of claim 11 , wherein a winding speed due to a rotation speed of the reel and a feed speed of the tube are coordinated with one another such that the tube at the second transfer point is transferred to the reel substantially free of tensile stress.

15 . The microduct-tube winder of claim 11 , wherein the tube guiding device has a main body and an elongate blade arranged on the main body, with the tube being guided along the blade.

16 . A double station winder, comprising two microduct-tube winders, each microduct-tube winder comprising a reel mounted for rotation about a rotation axis and including two radially projecting flanges and a core which is arranged between the flanges and on which a tube can be wound, and a tube guiding device configured to feed the tube to the reel, said tube guide device having a first transfer point at which the tube loses contact with the tube guiding device, when the microduct-tube winder is in an operating state, and a second transfer point on the reel and at which the tube comes at a winding angle into contact with the core or a tube layer that has been wound previously onto the core at the second transfer point, said tube guiding device being movable in a transverse plane of the reel and said reel being movable in a direction of the rotation axis, such that in the operating state the winding angle at the second transfer point remains the same at all times.

17 . A processing system for empty plastics microduct tubes produced by an extrusion device, comprising:
a microduct-tube winder comprising a reel mounted for rotation about a rotation axis and including two radially projecting flanges and a core which is arranged between the flanges and on which a tube can be wound, and a tube guiding device configured to feed the tube to the reel, said tube guide device having a first transfer point at which the tube loses contact with the tube guiding device, when the microduct-tube winder is in an operating state, and a second transfer point on the reel and at which the tube comes at a winding angle into contact with the core or a tube layer that has been wound previously onto the core at the second transfer point, said tube guiding device being movable in a transverse plane of the reel and said reel being movable in a direction of the rotation axis, such that in the operating state the winding angle at the second transfer point remains the same at all times; a magazine arranged upstream of the microduct-tube winder feeding the tube to the microduct-tube winder; and a belt-type haul-off arranged upstream of the magazine to feed the tube from the extrusion device to the magazine.

18 . The processing system of claim 17 , further comprising a dancer control arranged between the belt-type haul-off and the magazine.

19 . The processing system of claim 18 , wherein the dancer control is an electric dancer control.

20 . A manufacturing system, comprising:
an extrusion device configured to produce a plastics microduct tube; and a processing system comprising:
a belt-type haul-off receiving the tube from the extrusion device;
a magazine downstream of the belt-type haul-off and receiving the tube from the belt-type haul-off; and
a microduct-tube winder downstream of the magazine and receiving the tube from the magazine, said magazine microduct-tube winder comprising a reel mounted for rotation about a rotation axis and including two radially projecting flanges and a core which is arranged between the flanges and on which a tube can be wound, and a tube guiding device configured to feed the tube to the reel, said tube guide device having a first transfer point at which the tube loses contact with the tube guiding device, when the microduct-tube winder is in an operating state, and a second transfer point on the reel and at which the tube comes at a winding angle into contact with the core or a tube layer that has been wound previously onto the core at the second transfer point, said tube guiding device being movable in a transverse plane of the reel and said reel being movable in a direction of the rotation axis, such that in the operating state the winding angle at the second transfer point remains the same at all times.

21 . A method for winding an empty plastics microduct tube having an outside diameter of about 2 mm to about 20 mm onto a reel which is rotatable about a rotation axis, said method comprising:
transferring the tube by a tube guiding device from a first transfer point at which the tube loses contact with the tube guiding device, when the microduct-tube winder is in an operating state, to a second transfer point at which the tube comes at a winding angle into contact with the reel; and moving the tube guiding device in the operating state only in a transverse plane of the reel while the reel moves continuously or stepwise in a direction of the rotation axis, such that the winding angle remains the same at all times.

Assignees

• Krauss Maffei Tech Gmbh
• Graewe GmbH

Inventors

• Hofhus Michael
• Rüdiger Martin
• Graewe Michael
• Prechsl Dominik
• Graewe Stefan

Classifications

• B65H54/2803

  with a traversely moving package · CPC title

• B65H54/20

  forming multiple packages · CPC title

• B65H2701/331

  leaving an extruder · CPC title

• B29C47/0898 Primary

  Operations & Transport · mapped topic

• B29L2023/005

  Hoses, i.e. flexible · CPC title