# US 2014/0190235 A1 · Draw and Iron Apparatus

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- Number: US 2014/0190235 A1
- Document ID: US20140190235A1
- Status: Published application
- Kind: A1
- Application number: 13/738,734
- Filed: 2013-01-10
- Published: 2014-07-10
- Earliest claimed: 2013-01-10
- Assignees: Rexam Beverage Can Company
- Applicants: Rexam Beverage Can Company
- Inventors: Joseph Yannone; Leo Hayden; Peter C. Young
- Web page: https://patentgrep.com/patent/US20140190235A1

## CPC

- B21D 51/26: cans or tins; Closing same in a permanent manner (making outlet arrangements B21D51/38; welding or soldering B23K)
- B21D 22/20: Deep-drawing (special deep-drawing arrangements in, or in connection with, presses B21D24/00)
- B21D 22/28: of cylindrical articles using consecutive dies
- B21D 22/286: {with lubricating or cooling means}
- B21D 22/30: to finish articles formed by deep-drawing
- 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)

## Abstract

An apparatus for forming a container body from a metal blank has a ram, a blank holder, an annular die, an annular die holder, an insert and a plurality of ironing rings. The ram is centered about a longitudinal axis. The blank holder has an aperture through which the ram passes, The annular die is substantially axially aligned with the ram and adapted to allow the ram to pass therethrough. The annular die holder has a recessed portion adapted for receiving the annular die therein. The recessed portion has an annular, arcuate concave surface. The insert is located within the recess between the annular, arcuate concave surface and the annular die. The insert has a support surface for supporting the annular die thereon opposite an annular, arcuate, convex surface in operative engagement with the annular, arcuate concave surface and swivelable thereon. The plurality of ironing rings is substantially axially aligned with the ram.

## Claims

### Claim 1

An apparatus for forming a container body from a metal blank comprising:
a ram centered about a longitudinal axis;
a blank holder having an aperture through which the ram passes;
an annular die substantially axially aligned with the ram and adapted to allow the ram to pass therethrough;
an annular die holder having a recessed portion adapted for receiving the annular die therein, the recessed portion having an annular, arcuate concave surface;
an insert in the recess located between the annular, arcuate concave surface and the annular die, the insert supporting the annular die opposite an annular, arcuate, convex surface in operative engagement with the annular, arcuate concave surface and swivelable thereon;
a plurality of ironing rings substantially axially aligned with the ram.

### Claim 2 (depends on 1)

The apparatus of claim 1 wherein the annular die has a support surface in operative engagement with a support surface of the insert.

### Claim 3 (depends on 2)

The apparatus of claim 2 wherein the support surface of the annular die is substantially planar.

### Claim 4 (depends on 3)

The apparatus of claim 3 wherein the support surface of the insert is substantially planar.

### Claim 5 (depends on 4)

The apparatus of claim 4 wherein the annular die has a generally circumferential outer wall which is substantially at a right angle to the support surface.

### Claim 6 (depends on 5)

The apparatus of claim 5 wherein the annular, arcuate convex surface of the insert and the support surface of the insert converge as the annular, arucate convex surface and the support surface extend radially outwardly wherein the annular, arcuate convex surface and the support surface merge at point adjacent a generally circumferential wall of the annular die holder.

### Claim 7 (depends on 6)

The apparatus of claim 6 wherein further comprising:
a ring located between the annular die holder and the generally circumferential outer wall of the annular die.

### Claim 8 (depends on 1)

The apparatus of claim 1 wherein the insert is produced from a material having a Rockwell scale hardness less than a Rockwell scale hardness of the annular die.

### Claim 9 (depends on 1)

The apparatus of claim 1 wherein the insert is integrally formed with the annular die to form a one-piece unit therewith.

### Claim 10

An apparatus for forming a container body from a metal blank comprising:
a ram centered about a longitudinal axis;
a blank holder having an aperture through which the ram passes;
an annular die substantially axially aligned with the ram and adapted to allow the ram to pass therethrough;
an annular die holder having a recessed portion adapted for receiving the annular die therein, the recessed portion and having an annular, arcuate concave surface;
an insert in the recess located between the annular, arcuate concave surface and the annular die, the insert supporting the annular die opposite an annular, arcuate, convex surface of the insert;
a means for reducing a coefficient of friction between the annular, arcuate concave surface and the annular, arcuate convex surface of the insert; and
a plurality of ironing rings substantially axially aligned with the ram.

### Claim 11 (depends on 10)

The apparatus of claim 10 wherein the annular die has a support surface in operative engagement with a support surface of the insert.

### Claim 12 (depends on 11)

The apparatus of claim 11 wherein the support surface of the annular die is substantially planar.

### Claim 13 (depends on 12)

The apparatus of claim 12 wherein the support surface of the insert is substantially planar.

### Claim 14 (depends on 13)

The apparatus of claim 13 wherein the annular die has a generally circumferential outer wall which is substantially at a right angle to the support surface.

### Claim 15 (depends on 14)

The apparatus of claim 14 wherein the annular, arcuate convex surface of the insert and the support surface of the insert converge as the annular, arucate convex surface and the support surface extend radially outwardly wherein the annular, arcuate convex surface and the support surface merge at point adjacent a generally vertical circumferential wall of the annular die holder.

### Claim 16 (depends on 15)

The apparatus of claim 15 wherein further comprising:
a ring located between the annular die holder and the generally circumferential outer wall of the annular die.

### Claim 17 (depends on 10)

The apparatus of claim 10 wherein the means for reducing the coefficient of friction comprises producing the annular, arcuate convex surface of the insert and the annular, arcuate concave surface of the insert from dissimilar metallic materials.

### Claim 18 (depends on 17)

The apparatus of claim 17 wherein the insert is produced from a material having a Rockwell scale hardness less than a Rockwell scale hardness of the annular die.

### Claim 19 (depends on 10)

The apparatus of claim 10 wherein the means for reducing the coefficient of friction comprises a fluid pressure between the annular, arcuate convex surface of the insert and the annular, arcuate concave surface of the insert.

### Claim 20 (depends on 19)

The apparatus of claim 19 wherein the fluid pressure is provided by a gas.

### Claim 21 (depends on 20)

The apparatus of claim 20 wherein the fluid pressure is provided by a liquid.

### Claim 22 (depends on 10)

The apparatus of claim 10 wherein the insert is integrally formed with the annular die to form a one-piece unit therewith.
