Method for high-precision corner contouring of flat glass substrates in a continuous feed-through process

Patent metadata

Field	Value
Publication number	US-9751183-B2
Application number	US-201514802414-A
Country	US
Kind code	B2
Filing date	Jul 17, 2015
Priority date	Jul 17, 2014
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

A method is provided for corner contouring of flat glass substrates in a continuous feed-through process by a contouring tool. The method includes the steps of: synchronization of the movement of the contouring tool to the continuous feed-through movement of the flat glass substrate, contouring of a corner of the flat glass substrate, wherein a relative movement between the contouring tool and the flat glass substrate is performed so as to overlap the continuous feed-through movement.

First claim

What is claimed is:

1. A method for corner contouring of a flat glass substrate in a continuous feed-through process using a contouring tool, comprising the steps of:
synchronizing movement of a first carrier unit to the continuous feed-through movement of the flat glass substrate;
mechanically, electrically, acoustically, or optically coupling a second carrier unit being movably mounted on the first carrier unit to the flat glass substrate;
contouring a corner of the flat glass substrate, wherein relative movement between the contouring tool and the second carrier is performed to overlap the continuous feed-through movement.

2. The method according to claim 1 , wherein the relative movement is coupled to the corner of the flat glass substrate.

3. The method according to claim 1 , wherein the mechanically coupling of the second carrier unit to the flat glass substrate comprises placing the second carrier unit in a form-fitting manner against the flat glass substrate, and wherein the contouring the corner of the flat glass substrate takes place while maintaining the form-fitting between the second carrier unit and the flat glass substrate.

4. The method according to claim 3 , wherein the second carrier unit is mounted on the first carrier unit in two axial directions in a plane of the flat glass substrate.

5. The method according to claim 3 , further comprising operating spring elements between the first carrier unit and the second carrier unit in the two axial directions in the plane of the flat glass substrate, which, during the coupling of the second carrier unit to the flat glass substrate, press the second carrier unit permanently against the flat glass substrate.

6. The method according to claim 5 , wherein the spring elements operate with spring forces that are greater than advancing forces of the movement of the first carrier unit or cutting forces of the contouring step.

7. The method according to claim 5 , further comprising disposing two signal transmitters on the second carrier unit, the two signal transmitters having operating directions that coincide with operating directions of the spring elements.

8. The method according to claim 5 , wherein the spring elements are pre-tensioned.

9. The method according to claim 3 , wherein the form-fitting placement of the second carrier unit against the flat glass substrate occurs tactilely.

10. The method according to claim 3 , further comprising disposing one or a plurality of signal transmitters on the second carrier unit so that when the second carrier unit is placed against the flat glass substrate, the first carrier unit is advanced until the one or more signal transmitters emits a signal upon contact with the flat glass substrate or upon exceeding a predetermined force value, or upon detecting a predetermined distance.

11. The method according to claim 3 , wherein, after the coupling of the second carrier unit to the flat glass substrate, the second carrier unit and the flat glass substrate are fixed in position relative to each other.

12. The method according to claim 3 , further comprising clamping the second carrier unit and the flat glass substrate.

Assignees

• Schott Ag
• Schott V T F

Inventors

• Sattler Jochem
• Greiner Dominique

Classifications

• B24B7/244

  continuous · CPC title

• C03B35/14

  Transporting hot glass sheets {or ribbons, e.g. by heat-resistant conveyor belts or bands} · CPC title

• B24B9/102 Primary

  for travelling sheets · CPC title

• C03B2225/02

  Means for positioning, aligning or orientating the sheets during their travel, e.g. stops · CPC title