Method for producing a gasket on a component and shaping tool for use in such a method

Patent metadata

Field	Value
Publication number	US-10226882-B2
Application number	US-201715436995-A
Country	US
Kind code	B2
Filing date	Feb 20, 2017
Priority date	Aug 21, 2014
Publication date	Mar 12, 2019
Grant date	Mar 12, 2019

Abstract

The invention further relates to a shaping tool for use in such a method.

First claim

The invention claimed is:

1. A method for producing a gasket on a component, comprising:
a. providing a UV-curable gasket material;
b. providing a shaping tool including an upper face and a lower face and at least one cavity which is open toward the lower face of the shaping tool and which is provided for filling with the gasket material, and wherein the shaping tool is made of a UV-transparent material at least in the region of the cavity;
c. introducing the gasket material into the cavity of the shaping tool;
d. placing the component onto the lower face of the tool provided with the gasket material;
e. pressing the component onto the tool;
f. curing the gasket material by way of UV irradiation; and
g. removing the tool from the component and the gasket joined thereto,
wherein steps c to g are performed in the indicated order and the gasket material is introduced into the cavity of the shaping tool by an automated robotic system.

2. A method for producing a gasket on a component, comprising:
a. providing a UV-curable gasket material;
b. providing a shaping tool including an upper face and a lower face and at least one cavity which is open toward the lower face of the shaping tool and which is provided for filling with the gasket material, and wherein the shaping tool is made of a UV-transparent material at least in the region of the cavity;
c. introducing the gasket material into the cavity of the shaping tool;
d. placing the component onto the lower face of the tool provided with the gasket material;
e. pressing the component onto the tool;
f. curing the gasket material by way of UV irradiation; and
g. removing the tool from the component and the gasket joined thereto,
wherein steps c to q are performed in the indicated order and the step of introducing the gasket material into the cavity of the shaping tool comprises screen printing the gasket material into the cavity.

3. The method according to claim 1 , wherein the shaping tool is made of a flexible material at least in the region of the cavity.

4. The method according to claim 1 , wherein the shaping tool is made of silicone.

5. The method according to claim 1 , wherein the shaping tool is made of a flexible material at least in the region of the cavity and is made of non-flexible material in some regions other than the cavity.

6. The method according to claim 1 , wherein the gasket material comprises a UV-curable polyacrylate- or polyisobutylene-based material.

7. The method according to claim 1 , wherein curing of the gasket material is carried out in a UV chamber or by use of UV LED fields.

8. A method for producing a gasket on a component, comprising:
a. providing a UV-curable gasket material;
b. providing a shaping tool including an upper face and a lower face and at least one cavity which is open toward the lower face of the shaping tool and which is provided for filling with the gasket material, and wherein the shaping tool is made of a UV-transparent material at least in the region of the cavity;
c. introducing the gasket material into the cavity of the shaping tool;
d. placing the component onto the lower face of the tool provided with the gasket material;
e. pressing the component onto the tool;
f. curing the gasket material by way of UV irradiation; and
g. removing the tool from the component and the gasket joined thereto,

wherein steps c to g are performed in the indicated order and curing of the gasket material is carried out using UV LEDs which are applied directly onto the shaping tool.

9. The method according to claim 1 , wherein the shaping tool cavity has an opening directed toward the lower face and through which opening the cavity can be filled with a gasket material, and wherein other than the cavity, the shaping tool has no supply conduit that is open toward an edge of the shaping tool for supplying gasket material to the cavity.

10. The shaping tool according to claim 9 , wherein an unbroken inner surface defines the cavity and there is no fluid connection through the wall to supply gasket material to the cavity.

11. The shaping tool according to claim 9 , wherein the tool is made of a flexible material at least in the region of the cavity.

12. The shaping tool according to claim 9 , wherein the shaping tool is made of a flexible material at least in the region of the cavity and is made of a non-flexible material in other regions.

13. The shaping tool according to claim 9 , wherein UV LEDs are applied directly onto the shaping tool.

Assignees

• Henkel Ag & Co Kgaa

Inventors

• Becher Jürgen
• Drexl Michael

Classifications

• B29C43/021

  characterised by the shape of the surface · CPC title

• B29C43/003

  characterised by the choice of material · CPC title

• B29C33/40

  Plastics, e.g. foam or rubber · CPC title

• F16J15/108

  Special methods for making a non-metallic packing · CPC title

• B29C43/027 Primary

  having an axis of symmetry (B29C43/102 takes precedence) · CPC title