Winding device for winding a web-shaped material and method for changing a reel in a winding device

Patent metadata

Field	Value
Publication number	US-10029875-B2
Application number	US-201415029364-A
Country	US
Kind code	B2
Filing date	Oct 15, 2014
Priority date	Oct 15, 2013
Publication date	Jul 24, 2018
Grant date	Jul 24, 2018

Abstract

A winding device for winding a web-shaped material, preferably a plastic film, has a reel for receiving the web-shaped material, a contact roller for feeding and pressing the web-shaped material against the reel, a device for rotationally driving a still empty reel, and a device for feeding the still empty reel to the contact roller. The device for rotationally driving the still empty reel and the device for feeding the still empty reel to the contact roller can act simultaneously on the still empty reel.

First claim

What is claimed is:

1. A winding device for winding a web-shaped material, said winding device comprising:
a reel for receiving the web-shaped material;
a contact roller for feeding and pressing the web-shaped material against the reel;
a device for rotationally driving the reel while empty; and
a device for delivering the reel while empty to the contact roller,
the device for rotationally driving the empty reel and the device for delivering the empty reel to the contact roller being configured to act simultaneously on the empty reel, with the rotational speed of the empty reel being controlled such that a circumferential speed thereof is equal to the circumferential speed of the contact roller as the empty reel is delivered, and with the rotational driving being terminated before the delivered empty reel contacts at least one of the contact roller and the web-shaped to be wound.

2. The winding device, as claimed in claim 1 ,
wherein
the device for rotationally driving the empty reel includes a power transmission device that acts on a gearwheel, which is arranged on a reel shaft of the reel.

3. The winding device, as claimed in claim 2 ,
wherein
the power transmission device includes at least one of a sprocket chain and a toothed belt that cooperates with the gearwheel.

4. The winding device, as claimed in claim 2 ,
wherein
the device for rotationally driving the empty reel includes a retaining element, which is movable, relative to a machine frame of the winding device.

5. The winding device, as claimed in claim 4 ,
wherein
the power transmission device is arranged on the retaining element.

6. The winding device, as claimed in claim 3 ,
wherein
the retaining element is movable by an actuator.

7. The winding device, as claimed in claim 6 ,
wherein
the actuator includes a pneumatic or hydraulic cylinder.

8. The winding device according to claim 4 , wherein the movable retaining element is pivotable.

9. The winding device, as claimed in claim 1 ,
wherein
the device for rotationally driving the empty reel includes a power transmission device that is at least partially elongated in shape so as to extend parallel to a direction of travel of the device for delivering the empty reel to the contact roller.

10. The winding device, as claimed in claim 1 ,
wherein
the device for rotationally driving the empty reel includes a separate drive.

11. The winding device, as claimed in claim 1 ,
further comprising
a sensor with which a signal is communicated when the empty reel has reached or undershot a specified distance from the contact roller.

12. The winding device according to claim 1 , wherein the web-shaped material is a plastic film.

13. A method of changing a reel in a winding device for winding a web-shaped material, said method comprising the following steps:
feeding the web-shaped material to a reel for receiving the web-shaped material, and pressing, with a contact roller, the web-shaped material against the reel;
rotating the reel, while still empty, with a device for rotationally driving the reel;
moving the empty reel in a direction of the contact roller with a device for delivering the empty reel to the contact roller,
with the device for rotationally driving the empty reel and the device for delivering the empty reel to the contact roller acting simultaneously on the empty reel;
controlling the rotational speed of the empty reel such that a circumferential speed thereof is equal to the circumferential speed of the contact roller as the empty reel is delivered; and
terminating the rotational driving before the delivered empty reel contacts at least one of the contact roller and the web-shaped material to be wound.

14. The method according to claim 10 , wherein the web-shaped material is a plastic film.

15. The method according to claim 10 , further comprising a step of determining with a sensor when the empty reel has reached or undershot a specified distance from the contact roller, and issuing a signal from the sensor.

16. A winding device for winding a web-shaped material, said winding device comprising:
a reel for receiving the web-shaped material, the reel including a reel shaft and a gearwheel associated therewith;
a contact roller for feeding and pressing the web-shaped material against the reel;
a device for rotationally driving the reel while empty, including a power transmission device having at least one of a sprocket chain and a toothed be that cooperate with the gearwheel so as to establish or to interrupt the rotational driving ; and
a device for delivering the reel while empty to the contact roller,
the device for rotationally driving the empty reel and the device for delivering the empty reel to the contact roller being configured to act simultaneously on the empty reel.

17. The winding device according to claim 16 , wherein the device for rotationally driving the empty reel includes a retaining element, which is movable, relative to a machine frame of the winding device.

Assignees

• Windmoeller & Hoelscher
• Windmoeller & Hoelscher

Inventors

• Ratz Gerd
• Heumann Christian

Classifications

• B65H2301/41812

  by conveyor belt or chain running in closed loop · CPC title

• B65H19/2238 Primary

  The web roll being driven by a winding mechanism of the nip or tangential drive type (B65H19/2276 takes precedence) · CPC title

• B65H2301/41829

  positioning the core, e.g. in axial direction · CPC title

• B65H19/305

  Inserting core · CPC title

• B65H18/10

  Mechanisms in which power is applied to web-roll spindle · CPC title