hecht-dieper-2k-spritzguss-stage-lp-265185371.jpg
Development

2K inje­ction moulding const­ruction

Contact us
hecht-dieper-logo-initialen.svg

HECHT + DIEPER is a tech­nologically leading com­pany in the injection moul­ding of plastics tech­nology. It has many years of engineering experience and by using the latest tech­nologies reaching from development, mould con­struction, to tool pro­duction and manufacture HECHT + DIEPER is able to manufacture innovative plastic products of the highest precision.

The development and production of plastic parts – reaching from conceptualisation to production takes place under one roof: A prerequisite for short development phases and high product quality.

The profes­sional 2K injection moulding con­struc­tion of a 2K injection moulding tool is the basis for the produ­ction of high-quality and visually appealing injection moulded parts. The individual require­ments for the injection moulded part are recorded and taken into account as far as possible in the design of the injection mould.

The result is a 2K injection moul­ding tool suitable for series prod­uction, which usually delivers injec­tion moulded parts of the high­est quality far in excess of the guara­nteed output quan­tity.

hecht-dieper-hintergund.svg

Process steps in 2K injection moul­ding design

The design of 2K injection moulded comp­onents involves several critical process steps. Firstly, the comp­onent geometry is designed to be 2K-compatible. Depe­nding on the component, injection moulding options, sealing surfaces, support areas, etc. must be mod­elled.

At the same time, the choice of material and the compa­tibility of the plastics for 2-comp­onent injection moulding produ­ction are evaluated. Decisive factors include adhesion of the materials to each other, melt temper­ature, material shrink­age, etc. Find out more about the various material combi­nations.

hecht-dieper-fertigungshalle-impressionen-fliessband-blaues-werkstueck-faehrt-ueber-band.jpg

This is follo­wed by the actual design of the 2K injection moul­ding tool. The first step is to decide which basic 2K concept is suitable (see below). The mould is then desig­ned with the help of CAD soft­ware.

In the constr­uctive design, factors such as the removal of under­cuts, the possi­bility of ejection, sufficient venti­lation and cooling, surface require­ments and much more must be consi­dered and implem­ented, as with the classic 2K injection moul­ding design.

Once the con­struct­ion has been finalised, drawings of the asse­mbly and individual parts are created and trans­ferred to the tool­making process. The CAD data is also released and used for CAM-supp­orted produ­ction.

Mould concepts in 2K injection moulding (extract)

hecht-dieper-content-392801822.jpg

Turning technology

With rotary moulds, a pre-moulded part is first prod­uced in a cavity in the first process step. This is follo­wed by a horizontal rotary move­ment in which the pre-­moulded part is rotated into the second cavity. The second comp­onent is then injected into the second cavity, while another pre-moulded part is injected into the first cavity at the same time.

Depe­nding on the part geometry, the desc­ribed rotary movement can be perfor­med by the complete ejector-side mould half or by individual mould elem­ents, such as a stripper plate or an insert. The great adva­ntage of this process is the simult­aneous injection of both compo­nents and therefore short cycle times.

hecht-dieper-2k-spritzguss-lp-646713684.jpg

Transfer­technician

The pre-moulded part is trans­ferred to the second cavity with the help of a robotic system or by hand (small series). In this process, the pre-moulded part and the fini­shed part are also prod­uced at the same time, resulting in short cycle times.

Other advan­tages comp­ared to turning techno­logy include simpler mould techno­logy, the possi­bility of therm­ally separ­ating the diff­erent states, use of the robotic system for up­stream or down­stream opera­tions and much more.

hecht-dieper-content-442482094.jpg

Core-back technique

In the core retra­ction process, the cavity is expanded by pulling a slide or core to inject the second comp­onent. In principle, this allows simpler geo­metries to be realised and the produc­tion process is sequ­ential.

However, the process can also be used in combi­nation with the turning process and then offers the above-mentio­ned advan­tages.

hecht-dieper-hintergund-02.svg

From the idea to production - everything under one roof

We stand for pioneering solutions made of plastic

hecht-dieper-produktion-maschinenhalle-formenbau-leistung.jpg

Make use of our expertise

You value quality. So do we.

Make use of our many years of experience and let us talk about your concerns.

The benefits of collaboration with HECHT + DIEPER

HECHT + DIEPER is your expert in injection moulding of plastics.

hecht-dieper-illustrationen-entwicklungen.svg

Expertise

During development, our customers benefit from our many years of expert knowledge, in the area of design, our own toolmaking, as well as our competence in production.

hecht-dieper-illustrationen-partnerschaft.svg

Partnership

Together - as specialists, we know that only the joint development of components is the best prerequisite for the optimal functionality of your product.

hecht-dieper-illustrationen-erfahrung.svg

Experience

Since more than over 40 years we have been developing and producing technically challenging components of the highest precision for various industries.

hecht-dieper-illustrationen-logistik.svg

Logistic

In order to be able to deliver quickly, we believe in long standing and reliable cooperation with local logistics partners.

hecht-dieper-illustrationen-effizienz.svg

Efficiency

Regular optimization in development, toolmaking and production is a continuous process for us and thus the foundation for high efficiency and customer satisfaction.

hecht-dieper-illustrationen-vor-ort.svg

Local

Everything is local. We develop and produce plastic components - from the idea to production - one-stop. Our service enables short communication channels.