# US 2017/0282234 A1 · Device for partial embossing of seal blanks and method for partial embossing of seal blanks

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- Number: US 2017/0282234 A1
- Document ID: US20170282234A1
- Status: Published application
- Kind: A1
- Application number: 15/509,104
- Filed: 2015-09-08
- Published: 2017-10-05
- Earliest claimed: 2014-09-08
- Assignees: Tscheulin-Rothal GmbH
- Applicants: Tscheulin-Rothal GmbH
- Inventors: Andreas BRIELER
- Web page: https://patentgrep.com/patent/US20170282234A1

## CPC

- B21D 43/22: Devices for piling sheets
- B21D 35/001: {Shaping combined with punching, e.g. stamping and perforating}
- B44B 5/0004: {characterised by the movement of the embossing tool(s), or the movement of the work, during the embossing operation}
- B44B 5/0019: {Rectilinearly moving embossing tools}
- B65B 7/2807: {Feeding closures}
- B65D 77/20: by applying separate lids or covers {, i.e. flexible membrane or foil-like covers}
- B65D 77/2024: {the cover being welded or adhered to the container}
- B21D: WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL (working or processing of wire B21F)
- B44B: MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING (processes for producing decorative effects B44C; embossing leather C14B)
- B65B: MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING (bundling and pressing devices for cigars A24C1/44; devices for tensioning and securing binders adapted to be supported by the article or articles to be bound B25B25/00; applying closure members to bottles, jars or similar containers B67B1/00-B67B6/00; concurrent cleaning, filling and closing of bottles B67C7/00; emptying bottles, jars, cans, casks, barrels or similar containers B67C9/00)
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES

## Abstract

The device for partially embossing deep-drawn or planar seal blanks that are punched out from a foil strip comprises an embossing die and an adjacent punch. The embossing die in turn comprises a female mould and a male mould, the male mould comprising three-dimensional elements that are arranged in an outer region and in a central region and the male mould and the female mould, in their spatial position, being mounted so as to be rotatable about an axis A that is substantially perpendicular to the foil strip.

## Claims

### Claim 1

A device for embossing and punching out part of the surface of seal blanks from a foil strip by means of an embossing die, comprising two half-moulds, a male mould and a female mould, and a punch, wherein the male mould comprises three-dimensional elements arranged in an outer region and in a central region and wherein the male mould and the female mould, in their spatial position, are mounted so as to be rotatable about an axis A that is substantially perpendicular to a foil strip.

### Claim 2 (depends on 1)

A device according to claim 1, wherein the embossing die comprises two half-moulds, a male mould and a resilient medium, and wherein the male mould, in its spatial position, is mounted so as to be rotatable about an axis A that is substantially perpendicular to a foil strip.

### Claim 3 (depends on 2)

A device according to claim 2, wherein the resilient medium comprises hard rubber.

### Claim 4 (depends on 1)

A device according to claim 1, wherein the three-dimensional elements are arranged randomly.

### Claim 5 (depends on 1)

A device according to claim 1, wherein the three-dimensional elements are arranged on circular lines.

### Claim 6 (depends on 1)

A device according to claim 1, wherein the three-dimensional elements have different heights.

### Claim 7 (depends on 1)

A device according to claim 1, wherein the male mould is mounted so as to be rotatable by an angle α, the angle α corresponding to the central angle of a segment of a circle which is defined by two adjacent three-dimensional elements.

### Claim 8 (depends on 1)

A device according to claim 1, wherein the three-dimensional elements have a height in the range of from two to five times greater than a thickness of the foil strip, the foil strip having a thickness in the range of from 20 μm to 50 μm.

### Claim 9 (depends on 1)

A device according to claim 1, wherein the region of the male mould comprising outer three-dimensional elements adjoins the edge of the male mould and is arranged concentrically with the central region comprising three-dimensional elements.

### Claim 10 (depends on 1)

A device according to claim 1, wherein the female mould and the male mould of the embossing die are circular.

### Claim 11 (depends on 1)

A device according to claim 1, wherein the embossing die is arranged adjacently to the punch, and wherein the two tools can be operated synchronously.

### Claim 12 (depends on 1)

A method for producing optionally printed seal blanks for containers, the surface of which blanks is partially embossed, wherein the method is carried out on a device according to claim 1, the seal blanks being punched out of a foil strip whose surface is partially embossed, wherein the male mould and female mould, in their spatial position mounted so as to be rotatable about an axis A that is substantially perpendicular to the foil strip, are rotated by at least an angle α between two lifting movements of the punch.

### Claim 13 (depends on 12)

A method according to claim 12, wherein, after being rotated by the angle α between two lifting movements, the male mould and the female mould are rotated back by an angle α in the opposite direction of rotation.

### Claim 14 (depends on 1)

A device according to claim 1, wherein the three-dimensional elements are arranged on circular lines at regular intervals.

### Claim 15 (depends on 1)

A device according to claim 1, wherein the three-dimensional elements have a height in the range of from three to four times greater than a thickness of the foil strip, the foil strip having a thickness in the range of from 24 μm to 40 μm.

### Claim 16 (depends on 1)

A device according to claim 1, wherein the three-dimensional elements have a height in the range of from three to four times greater than a thickness of the foil strip, the foil strip having a thickness in the range of from 30 μm to 36 μm.
