Mould tool for injection moulding

Patent metadata

Field	Value
Publication number	US-9833936-B2
Application number	US-201515313042-A
Country	US
Kind code	B2
Filing date	May 28, 2015
Priority date	May 28, 2014
Publication date	Dec 5, 2017
Grant date	Dec 5, 2017

Abstract

An injection-molding mold configured for being mounted in an injection-molding apparatus for automated molding of work pieces in plastics, said injection-molding mold comprising at least two separate mold parts that are separated by a mold separation face, and wherein at least one first mold part ( 1 ) is configured with an outer frame ( 2 ) in which is configured at least one space ( 14 ) which is open relative to the mold separation face, in which is mounted at least one exchangeable mold insert ( 3 ), and wherein the exchangeable mold insert ( 3 ) has a support plate ( 16 ) and the mold insert has a recess ( 20 ) into which the support plate ( 16 ) extends to the effect that the support plate ( 16 ) secures the mold insert ( 3 ) in the open space ( 14 ).

First claim

The invention claimed is:

1. An injection-moulding mould configured for being mounted in an injection-moulding apparatus for automated moulding of work pieces in plastics, said injection-moulding mould comprising at least two separate mould parts that are separated by a mould separation face, and wherein at least one first mould part is configured with an outer frame in which is configured at least one space which is open relative to the mould separation face, in which is mounted at least one exchangeable mould insert, and wherein the exchangeable mould insert has a mould cavity side facing out towards the mould separation face, said mould cavity side being delimited by a number of side faces and is provided with one or more mould cavities and wherein the mould insert is secured in the outer frame by use of at least one mounting fitting which is arranged in the outer frame and each abuts on adjacent side faces on the mould insert, and where the mounting fitting comprises a support plate; and in that the mould insert comprises a recess that is configured to be complementary to the support plate in a side face on the mould insert; and wherein the support plate and the recess are configured such that the support plate extends into the recess and secures the mould insert in open spaces in the first mould part, characterised in that the mounting fitting further comprises two wedge-shaped fitting parts that each has two wedge faces that are angled relative to each other, and wherein the wedge-shaped fitting parts face opposite each other and abut on each other in such a manner that the wedge faces on the two wedge-shaped fitting parts diverge in mutually opposite directions, and wherein the one wedge face on the one wedge-shaped fitting part is configured to abut on the side face on the mould insert in which the support plate of the mounting fitting extends into the recess on said side face, and the one wedge face on the second wedge-shaped fitting part is configured to abut on a surface in the open space.

2. An injection-moulding mould according to claim 1 , characterised in that the two oppositely oriented wedge faces on each of the wedge-shaped fitting parts have the same mutual angle.

3. An injection-moulding mould according to claim 1 , characterised in that the two wedge-shaped fitting parts are secured to each other in such a manner that they can be shifted relative to each other in a direction longitudinally of the direction by which the wedge faces diverge.

4. An injection-moulding mould according to claim 1 , characterised in that the support plate comprises at least one elastic holding element which is configured so as to be deformed elastically by introduction of the support plate into the recess.

5. An injection-moulding mould according to claim 2 , characterised in that the two wedge-shaped fitting parts are secured to each other in such a manner that they can be shifted relative to each other in a direction longitudinally of the direction by which the wedge faces diverge.

6. An injection-moulding mould according to claim 2 , characterised in that the support plate comprises at least one elastic holding element which is configured so as to be deformed elastically by introduction of the support plate into the recess.

7. An injection-moulding mould according to claim 3 , characterised in that the support plate comprises at least one elastic holding element which is configured so as to be deformed elastically by introduction of the support plate into the recess.

Assignees

• Lego As

Inventors

• Lambæk Jens Stamp

Classifications

• B29C45/2675 Primary

  Mounting of exchangeable mould inserts · CPC title

• B29C33/306

  Exchangeable mould parts, e.g. cassette moulds, mould inserts (moulds with exchangeable mould parts for injection moulding B29C45/2673; mounting of exchangeable mould inserts for injection moulding B29C45/2675) · CPC title