LU500899B1 - Process for producing a combination component and combination component - Google Patents

Abstract

The invention relates to an injection molding method for producing a combination component with an injection molding device (1) which comprises a mold (2) with a mold half (3) on the decorative layer side and a mold half (4) on the functional layer side. In a first positioning step, a decorative film section (6) provided with a decorative layer is inserted between the mold half (3) on the decorative layer side and the mold half (4) on the functional layer side and fixed relative to the mold halves. The decorative film section (6) is deep-drawn in a deep-drawing step, so that the decorative film section (6) rests against a mold surface (12) of the mold half (3) on the decorative layer side. In a fixing step, a functional film section (11) is fixed relative to the mold halves. In an injection step, plastic melt (16) is introduced under pressure through an injection channel (5) arranged in the mold half (4) on the functional layer side into a cavity (15) of the mold (2). The functional film section (11) has a clamping section (14) with which the functional film section (11) is fixed in the fixing step in a clamping area arranged outside the cavity (15) on the mold half (4) on the functional layer side. The invention also relates to an injection molding device (1) and a combination component.

Description

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LU500899

Syntech Plastics GmbH

Method for producing a combination component and

combination component

The invention relates to an injection molding process for

Production of a combination component with a

Injection molding device comprising a mold with a mold half on the decorative layer side and a mold half on the functional layer side, wherein the combination component is formed from an injection molded part, on the surface of which at least a

Decorative layer and a functional layer are integrally connected. In the case of the invention

Injection molding is in a first

Positioning step provided with a decorative layer

Decorative foil section between the decorative layer side

Mold half and the functional layer side

Mold half introduced and relative to the

Mold halves fixed. In a deep-drawing step, the decorative film section is deep-drawn, so that the

Decorative foil section rests against a mold surface of the mold half on the decorative layer side. In a second positioning step, a

Functional film section between a decorative layer side

Mold half and a functional layer side

Mold half introduced and fixed in a fixing step relative to the mold halves. in one

Mold closing step, the mold is through

Bringing together the mold half on the decorative layer side

-2- SYP 2750P LU

LU500899 and the mold half on the functional layer side are closed, so that the mold halves create a

cavity is formed. In an injection step

Plastic melt under pressure through a mold half arranged in the functional layer side

Injection channel introduced through into the cavity, so that the decorative film section as a decorative layer and the

Functional film section as a functional layer cohesively connects to the injection molded part. in one

Mold opening step, the mold is opened again and removed in a removal step, the combination component. The invention also relates to a

Injection molding device for the production of a

Combination component by the invention

injection molding process.

A well-known method for the production of injection molded parts is the so-called injection molding process, in which a molten plastic mass is poured into a cavity of a

Injection mold injected and so the injection molded part, also known as molded part, is produced.

Injection molding processes are archetypal manufacturing processes and are characterized by the fact that complex plastic parts can also be produced, which, for example, have several differently colored sections or sections with different

Material properties may have. In which

Injection molding are special injection molding devices or machines used with which in granular form or

Powder form present plastics injection molded parts can be produced. For this purpose, the granular or powdered plastic is melted in a plasticizing unit and the plastic melt is melted under pressure into a through

- 3 - SYP 2750P LU

LU500899 two mold tool halves trained Kavitat, which the

Represents the negative mold of the plastic part to be produced, injected. After the plastic melt has been injected into the cavity and the plastic melt has cooled down, the two halves of the mold are moved apart and that

Injection molded part removed.

Plastics such as acrylonitrile

Butadiene-styrene copolymer (abbreviated: ABS) or polycarbonate (abbreviated: PC) or polypropylene (abbreviated: PP) or

Polymethyl methacrylate (short: PPMA) or a

Plastic mixture of at least two of the aforesaid

plastics in question.

It is also known to be made by injection molding

Injection molded parts during the injection molding process with a

decor layer to decorate. For this purpose, a so-called with a

in-mold decoration film provided with the decorative layer in the

injection mold is inserted and the decorative layer of the in-mold

Decoration film over the entire surface under the temporal influence of

Temperature and pressure on the surface of the

Transfer plastic injection part.

It is also known to produce so-called in-mold labeling parts by injection molding, with the injection moldings being printed during the injection molding process. The in-mold

Labeling molded part is an insert part in which a

Finlegeteildekorlage is printed on a carrier film.

The Finlegeteiledekorlage is under temporal Fineffekt of

Temperature and pressure on the surface of the

Transfer plastic injection part. The in-mold labeling

Molded part can be a flat, two-dimensional insert

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LU500899 are available or a three-dimensionally preformed insert part is available in an upstream deep-drawing process.

The publication DE 10 2011 102 722 A1 describes a method for producing a molded part decorated by means of in-mold decoration (IMD for short) and in-mold labeling (IML for short) with an injection molding device that has a decor-side and a core-side Has tool half.

The IMD foil is divided into one by one on the decor side

Mold recess formed mold surface of the decor side

Tool half inserted and fixed. Then a

IML molded part is inserted and fixed in a mold surface formed by a mold recess on the core side of the mold half on the core side. After closing the

Injection molding device is the plastic melt in the

Mold cavity of the core-side tool half injected, the liquid injection molding material, the IML molded part against the IMD film in the mold cavity of the decorative side

tool half presses. After the molded part has cooled, it can then be removed from the injection molding device.

The IML molded part described in this publication is fixed on the mold surface on the core side by positioning pins and/or electrostatic force and/or vacuum force.

In the process described, the

Outlet opening of the injection channel arranged under the IML molded part, so that the IML molded part when injecting the

Plastic is pressed against the decorative layer of the IMD film and the IML molded part is back-injected. For the arrangement of

IML molding at the outlet opening is a particularly complex design of the mold, especially in the

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LU500899

Area of the outlet opening of the injection channel necessary.

In addition, the IML molded part must have a correspondingly designed shape so that it can be inserted into the injection channel and held there, for example with a pin-shaped holding device. On the one hand, this reduces the

Freedom of design for the design of the IML molded part but also for the injection molded part, on the other hand, such a design requires subsequent reworking of the

Injection molded part, which increases the financial and time expenditure for the production of an injection molded part. Of

Furthermore, the IML molding is due to the design of the

Injection molding device in the finished injection molded part completely surrounded by the decorative layer. This also represents a limitation of the design freedom of the injection molded part to be produced.

It is therefore considered the object of the present invention to provide an improved injection molding process and an improved injection molding device, with which a combination component can be produced which is applied to the surface of an injection molded part

Decorative layer and functional layer is formed.

This object is achieved in that the

Functional film section has a clamping section, with which the functional film section is fixed in the fixing step in a clamping area arranged outside of the cavity on the mold half on the functional layer side.

By fixing the functional film section on the functional layer side mold half is the

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LU500899

Functional film section is particularly well secured against slipping during the injection process. Thus, a made in the second positioning step

Positioning of the functional film section are retained. The fixation can, for example, by means of a

Vacuum force or by means of a formschliissen connection arise in which the functional film section in for

Fixation provided recesses or undercuts is inserted or pushed. The clamping device can also advantageously be designed independently of the configuration of the mold surface within the mold recess of the mold half on the functional layer side.

The handling of the functional film section in the second

The positioning step is carried out, for example, by means of a robotic gripper system. So that are an accurate

The functional film section can be positioned and aligned relative to the mold half on the functional layer side. Furthermore, those in the second

Positioning step carried out handling processes can be automated and thus reproducible and can be carried out quickly.

Due to the fact that the injection channel is arranged within the mold half on the functional layer side, the plastic melt comes first with the

Functional film section in contact. If a functional film section with a planar configuration is used, this is applied by the plastic melt

Pressure moves in the direction of the decorative film section and is applied to the inside of the mold surface on the decorative layer side

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LU500899

Mold half thermoformed decorative film section. The

Decorative layer is thus on the decorative layer side

Mold half facing side of

Functional film section connected. Because of that

Functional film section is arranged during the injection process between the decorative film section and the plastic melt, the through the plastic melt on the

Decorative layer of decorative foil section auslibte

Temperature stress can be reduced, so that a thermally caused by the high temperature of the plastic melt

Damage to the decorative layer can be prevented.

The functional film section can, for example, as one of the plastics mentioned above, such as

Acrylonitrile butadiene styrene copolymer (ABS for short) or

Polycarbonate (abbreviated: PC) or polypropylene (abbreviated: PP) be formed molded part, which can be inserted both as a flat component and as a three-dimensional molded part within the mold.

Since the deep-drawing of the decorative film section within the

Forming tool takes place and the positioning of the

Decorative film section within the tool therefore only has to be carried out once is a particularly time-saving method for producing the

Combination component feasible. Furthermore, through the carried out within the mold

Deep-drawing process, an additional deep-drawing tool or another handling device for transferring the deep-drawn decorative film section of a

Thermoforming device can be saved in the mold.

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LU500899

Thus, a particularly cost-effective method for

Production of the combination component feasible.

In an advantageous embodiment of the invention

The method provides for the functional film section to be fixed in a clamped manner on the mold half on the functional layer side. In injection molds, a clamping force can be produced, for example, by means of a slide device. Slide devices are through the

Opening or closing movement of one half of the mold actuated. The effort to install a variety of complex and expensive systems, such as

Vacuum pumps or a complex introduction of

Vacuum channels into the mold half and the sealing of the vacuum channels can be reduced.

Advantageously, it is optionally provided that the

Functional film section has a strap-like clamping section, with which the functional film section is fixed in a clamping manner on the mold half on the functional layer side. Advantageously, it can be provided that the

Injection molding device a clamping device in the area

Shaped surface of the functional layer-side mold half, with which the functional film section after the second positioning step on the tab-like

Clamping section can be fixed in a clamping manner. As a result, the clamping portion clamped within the clamper does not come into contact with the during the injection step

Plastic melt in contact. For example, conductor track ends that are present within the clamping section of the conductor tracks arranged on the functional film section could be present after the production and after the removal of the

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LU500899

Functional component are used as electrical contact elements. Those present within the clamping section

Conductor tracks are made according to the injection molding process of

Combination component can be contacted directly. So it can

Combination component with a low

Post-processing effort can be used for further assembly.

For a particularly firm and secure hold of the

Functional film section in the second

Positioning step fixed position is provided in an advantageous implementation of the inventive concept that in the fixing step and in the injection step

Functional film section is fixed non-positively to the functional layer-side mold half by means of vacuum force. For the functional film section can be analogous to

Decorative film section are fixed by vacuum force on the functional layer-side mold half. Advantageously, it can be provided that

Vacuum channels are arranged within the mold surface of the functional layer-side mold half that its openings are arranged in the peripheral edge sections of the inserted functional film section. Thus, a particularly strong fixation of the

Functional film section on the functional layer side

Mold half possible. When using rigid

Functional film sections, it is optionally provided that within the mold surface of the functional layer side

Mold half undercuts and recesses are provided for a form-fitting definition of the

Functional film section can be used. The

Undercuts within the functional layer side

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LU500899

Mold half can, for example, circumferentially or at least partially circumferentially to the

Be configured functional film section, so that the

Functional foil section can be inserted into the recesses formed by the undercuts, for example guided by a robot.

In an advantageous embodiment of the invention it is provided that the functional film section in the second

Positioning step is positioned over the entire surface of the mold surface of the functional layer-side mold half, so that in the injection step the plastic melt exclusively with the functional film section and the

Form surface of the mold half on the functional layer side in

contact occurs. Thus, the functional layer in the

Edge areas of the injection molded part are applied.

In order to have a particularly large area of the injection molded part with a

Being able to provide a functional layer is provided in an advantageous implementation of the inventive idea that the decorative film section in the first

Positioning step is positioned over the entire surface of the mold surface of the decorative layer side mold half.

Thus, also in the edge areas of the mold half oriented in the direction of the decorative layer side

Surface of the injection molded part a decorative layer or a decorative layer can be applied.

For a particularly simple and time-saving handling of the

Allowing decorative film sections is in an advantageous embodiment of the invention

Injection molding provided that the

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LU500899

Decorative film section part of a designed as a continuous film

Decorative film is designed. In this case, the decorative film can be designed, for example, as a continuous web, on the one

Variety of repeating decorative film sections are arranged. Designed as a continuous film decorative film can be stored on a supply roll and by means of a

Positioning device are guided through the mold.

The decorative film, whose decorative film sections through the

Were passed through the mold and whose decorative layer was applied to the injection molded part after the injection molding process, can then be wound up on a take-up roll. This results in a particularly space-saving and easy handling

decorative film sections.

With a full surface and continuously on the as

Endless foil configured decorative foil, the decorative layer can be positioned independently of the exact positioning relative to the mold half on the decorative layer side.

The decorative layer can thus be applied to the entire surface of the injection-molded part and/or to the functional film section over its entire surface.

In an advantageous embodiment of the invention it is provided that in the deep-drawing step

Decorative foil section by electrostatic force and/or by vacuum force on the decorative layer side

Mold half is fixed. The vacuum can be introduced between the decorative film section and the mold half on the decorative layer side through one or more vacuum channels, the openings of which run around the mold surface of the mold half on the decorative layer side

- 12 = SYP 2750P LU

LU500899 are arranged. The decorative film is thus fixed in the mold surface surrounding areas, so that the position and the

Alignment of the decorative film section before

Finspritzstep are set. Since the decorative film section is thus fixed during the injection step within the mold surface, the position and orientation of the decorative layer during the injection of the plastic melt into the

cavity are held. This is a reproducible

Production of the decorative layer and the combination component possible.

In order to reduce the time required to produce the

To reduce functional component is in an advantageous

Implementation of the inventive idea provided that the first

Positioning step and the second positioning step are carried out in parallel. If the durations of the first positioning step and the second positioning step differ from one another, the start times of the respective positioning steps can be selected simultaneously or with a time offset, so that the end times of the

Positioning steps also take place simultaneously or at different times. A time-adapted and improved injection molding process can thus be carried out.

In an advantageous embodiment of the idea of the invention, it is provided that the functional film section has a cutout in the area of the injection channel through which the cutout emerges from the injection channel

Plastic melt into a through the

Functional film section and formed by the decorative film section gap is injected, so that the

Functional layer on one of the functional layer side

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LU500899

Mold half facing back of the injection molded part and the decorative layer on one of the decorative layer side

Mold half facing front of

injection molded part is applied. The decorative layer of the decorative film section present on the decorative layer is thus placed on the side in the direction of the decorative layer

Mold half facing surface of SpritzgieBbteile cohesively connected.

To the manufactured combination component of example

In order to clean adhesions of film residues, it is provided in an advantageous implementation of the idea of the invention that the combination component is cleaned in a cleaning step that follows the removal step. The

Cleaning can be done mechanically using brushes and compressed air blasts, for example, so that the film residues are detached from the combination component.

In an advantageous embodiment of the inventive idea it is provided that the plastic melt is made of a transparent plastic material, so that a

Functional component can be produced, in which it is made possible to be able to see through the functional component in non-decorated areas and through the transparent body through to the functional layer. For example, this makes it possible to light rays from on the

Functional film section arranged LEDs are emitted to allow pass through the decorative layer.

The task at the outset is also carried out by a

Injection molding device with a decorative layer side

Mold half and a functional layer side

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LU500899

Solved mold half, wherein a decorative film section by a first positioning device and a

Functional film section by a second

Positioning device between the decorative layer side

Mold half and the functional layer side

Mold half are positioned, wherein the

Decorative foil section and/or the functional foil section generated by means of a vacuum generating device

Vacuum force on the first mold half and / or the second mold half can be fixed, wherein the

Injection molding device arranged at least one in the functional layer side mold half

Has Finspritzkanal.

The positioning device can be designed as a roller transport system with a supply roller and a take-up roller. The decorative film designed as a continuous film is stored on a supply roll and guided through the mold to the take-up roll. On the

Take-up roll is the decorative film, whose

Decorative film sections were passed through the mold, and the decorative layer was applied after the injection molding process on the injection molded part, then on a

Take-up roll wound up again.

In an advantageous implementation of the inventive concept, it is provided that the mold has a clamping device in the

Area of the mold surface of the functional layer side

Has mold half, with which the

Functional film section can be fixed in a clamped manner on the mold half on the functional layer side.

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LU500899

The clamping device can for example as

Be configured slider device.

In an advantageous implementation of the idea of the invention, it is provided that several injection channels are provided.

The plastic melt can be injected through several fin injection channels at different positions within the mold surface of the mold half on the functional layer side. Thus, the plastic melt can be particularly targeted and improved in terms of time in the

Cavity are introduced, so that a time-optimized

Injection molding process is feasible.

The task at the outset is also carried out by a

Combination component solved, which is formed from an injection molded part, on its surface in a

Injection surface area at least partially one

Decorative layer and a functional layer are connected in a material-locking manner, with the functional layer having one

Has clamping portion, which is outside of

Injection surface area of the injection molded part is arranged.

Advantageously, the clamping section is designed like a strap, which is fixed during the injection molding step within the clamping device arranged outside the cavity. Thus comes within the

Clamping device clamped clamping section during the

Finspritzstep not with the plastic melt in

Contact and is exposed after removal of the combination component from the mold. As a result, the clamping section can be used as a mechanical or electrical contact element for further processing and assembly of the combination component. At

Presence of conductor tracks within the clamping section

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LU500899 of the functional layer, these can be used after the

Injection molding process can be contacted directly and without post-processing effort. Thus, with regard to

Installation effort and cost improved

Combination component can be produced.

Further advantageous configurations of the invention are illustrated in the drawings

Examples explained. Show it:

1 shows a schematic representation of the inventive

Injection molding device with an open mold in a sectional view,

2 shows a schematic representation of the inventive

Injection molding device with an open mold in a sectional view and

3 shows a schematic representation of the inventive

Injection molding device during the injection step in a

sectional view.

1 shows an injection molding device 1 according to the invention with an open mold 2 . The

Injection molding device 1 has a decorative layer side

Mold half 3 and a functional layer side

Mold half 4 on. The injection molding device 1 is shown in an open state. The fin injection channel 5 is arranged in the mold half 4 on the functional layer side.

A decorative film section 6 is by means of a first

Positioning device 7 between the decorative layer side

Mold half 3 and the functional layer side

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LU500899

Mold half 4 positioned. The

Decorative foil sections 6 are provided via a decorative foil 8 configured as a continuous foil, the decorative foil sections 6 consisting of a large number of decorative foil sections

Decorative film 8 is unwound on a supply roll 9 and is guided through the open mold 2 . The for the

Decorative film sections 6 used in the injection molding process are rolled up again on a winding roller 10 . A

Functional film section 11 is positioned between mold half 3 on the decorative layer side and mold half 4 on the functional layer side with a second positioning device (not shown in FIG. 1 ).

In the region of the mold surface 12 of the mold half 4 on the functional layer side, the mold 2 has a

Slider unit configured clamping device 13, with which a strap-like clamping section 14 of the

Functional film section 11 can be clamped to the mold half 4 on the functional layer side.

In FIG. 2, the mold 2 is the one according to the invention

Injection molding device 1 shown in a closed state. The mold surface 12 of the decorative side

Mold half 3 and mold surface 12 of mold half 4 on the functional layer side form one

Cavity 15 off. The decorative film section 6 is through by means of a not shown in FIG

Vacuum generating device generated vacuum force at the

Shaped surface 12 of the decorative layer-side mold half 3 deep-drawable and fixable, so that the

Decorative film section 6 applies to the mold surface 12. The

Functional film section 11 is produced by means of a vacuum generating device, not shown in FIG

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LU500899

Vacuum force can be fixed on a mold surface 12 of the mold half 4 on the functional layer side. The clamped within the clamping device 13 clamping portion 14 is outside the Kavitat 15, so that this during the

Injection not with the in Fig. 2 is not shown

Plastic melt comes into contact.

3 shows the injection molding device 1 according to the invention during the injection molding process. through the

Injection channel 5, plastic melt 16 is injected into cavity 15. The plastic melt 16 first comes into contact with a surface of the functional film section 11 that faces the mold half 4 on the functional layer side

contact and exerts a force on it. This force causes the functional foil section 11 to move in the direction of the

Decorative film section 6 deflected and rests on this. After cooling and solidification of the plastic melt 16 and after opening the mold 2 is with the

Decorative layer and the functional layer provided

Injection molded part as a combination component from the

Injection molding device 1 can be removed.

In the representations of FIGS. 1 to 3, only a number of elements of the same type are identified by a reference number as an example.

Claims (15)

- 19 - SYP 2750 P LU LU500899 PATENT CLAIMS 1. Injection molding method for producing a combination component with an injection molding device (1) which comprises a mold (2) with a mold half (3) on the decorative layer side and a mold half (4) on the functional layer side, the combination component being formed from an injection-molded part on the surface of which at least sections a decorative layer and a functional layer are cohesively connected, in a first positioning step a decorative film section (6) provided with a decorative layer being introduced between the mold half (3) on the decorative layer side and the mold half (4) on the functional layer side and fixed relative to the mold halves, with a deep-drawing step the decorative film section (6) is deep-drawn so that the decorative film section (6) rests against a mold surface (12) of the mold half (3) on the decorative layer side, wherein in a second positioning step a functional film section (11) is placed between a mold half (3) on the decorative layer side and a mold half (3) on the functional layer side ( 4) is introduced and fixed relative to the mold halves in a fixing step, with the mold (2) being closed in a mold closing step by moving the mold half (3) on the decorative layer side and the mold half (4) on the functional layer side, so that the mold halves create a cavity (15) is formed, wherein in an injection step plastic melt (16) under pressure through a functional layer side - 20 - SYP 2750 P LU LU500899 injection channel (5) arranged in the mold half (4) is introduced into the cavity (15), so that the decorative film section (6) as a decorative layer and the functional film section (11) as a functional layer are bonded to the injection molded part, wherein the mold (2) is opened again in a mold opening step and the combination component is removed in a removal step, characterized in that the functional film section (11) has a clamping section (14) with which the functional film section (11) in the fixing step in an outside the clamping area arranged in the cavity (15) is fixed to the mold half (4) on the functional layer side. 2. Injection molding process according to claim 1, characterized in that the functional film section (11) is clamped to the mold half (4) on the functional layer side. 3. Injection molding process according to claim 1 or 2, characterized in that in the fixing step and in the fin injection step the functional film section (11) is non-positively fixed to the mold half (4) on the functional layer side by means of vacuum force. 4. Injection molding process according to one of the preceding claims, characterized in that the functional film section (11) in the second positioning step is positioned over the entire surface over the mold surface (12) of the functional layer-side mold half (4), so that in the injection step the - 21 = SYP 2750 P LU LU500899 Plastic melt (16) only comes into contact with the functional foil section (11) and the mold surface (12) of the mold half (4) on the functional layer side. 5. Injection molding process according to one of the preceding claims, characterized in that the decorative film section (6) is positioned over the entire area over the mold surface (12) of the mold half (3) on the decorative layer side in the first positioning step. 6. Injection molding method according to one of the preceding claims, characterized in that the decorative film section (6) is designed as part of a decorative film (8) designed as a continuous film. 7. Injection molding method according to one of the preceding claims, characterized in that in the deep-drawing step the decorative film section (6) is fixed by electrostatic force and/or by vacuum force on the mold half (3) on the decorative layer side. 8. Injection molding method according to one of the preceding claims, characterized in that the first positioning step and the second positioning step are carried out in parallel. 9. Injection molding method according to one of the preceding claims, characterized in that the functional film section (11) in the region of the injection channel (5) has a recess through which the out of the injection channel (5) emerging - 22 = SYP 2750 P LU LU500899 Plastic melt (16) is injected into an intermediate space formed by the functional film section (11) and the decorative film section (6), so that the functional layer on a functional-layer-side mold half (4) facing the back of the injection molded part and the decorative layer is applied to a front side of the injection-molded part facing the mold half (3) on the decorative layer side. 10. Injection molding process according to one of the preceding claims, characterized in that the combination component is cleaned in a cleaning step that follows the removal step. 11. Injection molding method according to one of the preceding claims, characterized in that the plastic melt (16) is made of a transparent plastic material. 12. Injection molding device (1) for producing a combination component by the injection molding process according to Claims 1 to 11, having a mold half (3) on the decorative layer side and a mold half (4) on the functional layer side, with a decorative film section (6) being positioned by a first positioning device (7) and a functional film section (11) can be positioned by a second positioning device between the mold half (3) on the decorative layer side and the mold half (4) on the functional layer side, with the decorative film section (6) and/or the functional film section (11) being attached to the - 23 - SYP 2750 P LU LU500899 the first mold half and/or the second mold half, the injection molding device (1) having at least one injection channel (5) arranged in the mold half (4) on the functional layer side. 13. Injection molding device (1) according to claim 12, characterized in that the mold (2) has a slide device in the region of the mold surface (12) of the mold half (4) on the functional layer side, with which the functional film section (11) is clamped to the mold half (4 ) can be specified. 14. Injection molding device (1) according to claim 12 or 13, characterized in that several injection channels are provided. 15. The combination component produced using the injection molding method according to one of claims 1 to 11 and with an injection molding device (1) according to one of claims 12 to 14, wherein the combination component is formed from an injection molded part, on the surface of which a decorative layer and a Functional layer are integrally connected, wherein the functional layer has a clamping section (14) which is arranged outside the injection surface area of the injection molded part.