Core gluing device for a rewinding machine and related method

a rewinding machine and core gluing technology, which is applied in the direction of fluid heaters, lighting and heating apparatus, heating types, etc., can solve the problems of frequent maintenance, limited production capacity of the rewinding machine, and inability to adjust the amount of glue applied
US20050173585A1Inactive Publication Date: 2005-08-11PAPER CONVERTING MASCH CO INC
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
PAPER CONVERTING MASCH CO INC
Publication Date
2005-08-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

A core gluing device for a rewinding machine comprises a conveyor (1) designed to convey cores (10a, 10b, 10c) along a core conveying surface (A-A), a gluing unit (2) comprising a first gluing roller (22) which picks up the glue from a glue container (20) and a second gluing roller (26) opposed to the first gluing roller, so that each core (10a, 10b, 10c) can pass between the two gluing rollers (22, 26) for application of a trace of glue (100b, 100c) on it. The gluing rollers (22, 26) are driven at different speeds to control the width of the trace of glue to be applied to the core, and positioning devices (4) are provided, arranged downstream of the gluing devices (2) and upstream of a log winding unit (6) of the rewinding machine for the correct positioning of the core (10c) with the related trace of glue (100c), before insertion between the winding rollers.
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Description

BACKGROUND

[0001] The present invention refers to a device and to a method for gluing cores of a rewinding machine.

[0002] As is known, a rewinding machine is used for the formation of reels of sheet material originating from large parent reels.

[0003] Generally the sheet material is wound on tubular cores, which are appropriately fed towards the winding unit of the rewinding machine. For this purpose, upstream of the winding unit of the rewinder there is a gluing unit which applies a strip of glue on the outer surface of the cores. In this way, when the core comes into contact with the winding rollers, the end edge of the sheet material grips the glue deposited on the core, permitting winding of the sheet material on the core for formation of the reel.

[0004] The European patent EP 0.697.988 describes a gluing unit of the overflow type. The glue comes out of a slot positioned according to a directrix of the core by overflowing and is applied on the cores when they pass over the slo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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