Device for closing a container with a screw type closure

The implementation of a needle roller bearing with ceramic or polymer rolling elements addresses maintenance and hygiene issues in roll-on closure devices, enhancing sealing reliability and reducing operational costs.

EP3981734B1Active Publication Date: 2026-07-08KRONES AG
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Patents
Current Assignee / Owner
KRONES AG
Filing Date
2021-10-06
Publication Date
2026-07-08

AI Technical Summary

Technical Problem

Existing devices for closing containers with roll-on closures, particularly in beverage bottling, face issues with maintenance and hygiene due to the use of conventional bushing bearings that require frequent lubrication and are prone to product residue adhesion, leading to sealing defects.

Method used

The use of a needle roller bearing, designed as a hybrid bearing with ceramic or polymer rolling elements, eliminates the need for lubrication and enhances cleaning efficiency, reducing the risk of sticking and maintaining optimal operation.

Benefits of technology

This design reduces maintenance costs and ensures improved hygiene by allowing easier flushing and minimizing the risk of defects, resulting in more reliable sealing of beverage containers.

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Abstract

The present invention relates to a device (1) for closing a container (9) with a roll-on closure (8), preferably for closing a beverage container (9) with a roll-on closure (8) in a beverage filling plant, comprising a plunger (2) for applying a top pressure to a roll-on closure (8), a carrier (3) rotatable relative to the plunger (20) about its longitudinal axis (20), a forming arm (4) pivotably arranged on the carrier (3), and a forming roller (5) rotatably mounted on the forming arm (4) relative to the forming arm (4) for introducing a deformation into a side surface (81) of the roll-on closure (8), wherein the forming roller (5) is mounted on the forming arm (4) via a rolling bearing, preferably a needle bearing (6).
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