阅读说明：本技术 内刮水饰条及其生产工艺 (Internal water scraping decorative strip and production process thereof ) 是由 张笑地 于 2019-08-30 设计创作，主要内容包括：本发明公开了内刮水饰条及其生产工艺,包括一体成型的基体、多个辅材和至少一个发泡部,所述辅材连接在基体上,发泡部的一端设置在部分或者全部辅材的自由端。本发明通过在软质材料用量较大的无功能性部位采用发泡部料,达到降低产品密度减轻产品重量的目的。(The invention discloses an internal water scraping decorative strip and a production process thereof. The invention achieves the purpose of reducing the density and the weight of the product by adopting the foaming part material at the non-functional part with larger dosage of the soft material.)

1. Interior water trim of scraping, its characterized in that: including integrated into one piece's base member, a plurality of supplementary material and at least one foaming portion, supplementary material is connected on the base member, and the one end setting of foaming portion is in the free end of some or whole supplementary material.

2. The internal wiper trim of claim 1, wherein: and flocking parts are arranged on the outer surfaces of one side or two sides of the foaming part.

3. An internal wiper molding as defined in claim 1 or 2, wherein: the auxiliary material comprises a first auxiliary material arranged on one side of the base body, and the foaming part comprises a first foaming part arranged at the free end of the first auxiliary material.

4. The internal wiper trim of claim 3, wherein: the auxiliary material comprises a second auxiliary material arranged on one side of the base body, the foaming part comprises a second foaming part arranged at the free end of the second auxiliary material, and the first auxiliary material and the second auxiliary material are positioned on the same side of the base body.

5. The production process of the internal water scraping decorative strip is characterized in that: the soft material, the hard material and the foaming material are respectively injected into the extrusion die, the soft material, the hard material and the foaming material flow to the fusion zone in the extrusion die along respective channels, and the soft material, the hard material and the foaming material form an auxiliary material, a base body and a foaming part after being combined in the fusion zone.

6. The process for producing an inner wiper molding as defined in claim 5, wherein: the foaming material is formed by mixing and foaming a microcapsule foaming material and polyethylene particles.

7. The process for producing an inner wiper molding as defined in claim 5, wherein: the microcapsule foam comprises hydrocarbon and a propylene polymer.

8. The production process of the internal water scraping decorative strip is characterized in that: the soft material, the hard material, the foaming material and the flocking material are respectively injected into the extrusion die, the soft material, the hard material, the foaming material and the flocking material flow to the fusion zone in the extrusion die along respective channels, and the soft material, the hard material, the foaming material and the flocking material form an auxiliary material, a base body, a foaming part and a flocking part after being combined in the fusion zone.

9. A process for producing an internal wiper molding as defined in claim 8, wherein: the foaming material is formed by mixing and foaming a microcapsule foaming material and polyethylene particles.

10. A process for producing an internal wiper molding as defined in claim 8, wherein: the microcapsule foam comprises hydrocarbon and a propylene polymer.

Technical Field

The invention relates to a decorative strip in the field of production research of automobile parts, in particular to an internal water scraping decorative strip and a production process of the internal water scraping decorative strip.

Background

The automobile inner wiper decorative strip is generally made of three to four materials, and has the main functions of being attached to automobile window glass for dust prevention, water prevention, shock absorption, glass shaking prevention and the like.

In the prior art, the internal wiping decorative strip is made of a compact material, so that the product is relatively heavy in weight and is not suitable for light weight of an automobile. As shown in FIG. 1, a hard material is generally used for the base 10, a soft material is generally used for the auxiliary material 20, and a flocked portion 30 is provided on a part of the surface of the auxiliary material 20. The hard material and the soft material are both dense materials.

Disclosure of Invention

The invention aims to provide an internal water scraping decorative strip and a production process thereof, wherein a foaming part material is adopted at a non-functional part with larger consumption of a soft material, so that the aims of reducing the density and the weight of a product are fulfilled.

The solution of the invention for solving the technical problem is as follows: interior water trim of scraping, including integrated into one piece's base member, a plurality of supplementary material and at least one foaming portion, supplementary material is connected on the base member, and the one end setting of foaming portion is in the free end of some or all supplementary materials.

As a further improvement of the technical scheme, the outer surface of one side or two sides of the foaming part is provided with a flocking part.

As a further improvement of the above technical solution, the auxiliary material includes a first auxiliary material disposed on one side of the base body, and the foamed part includes a first foamed part disposed at a free end of the first auxiliary material.

as a further improvement of the above technical solution, the auxiliary material includes a second auxiliary material disposed on one side of the base body, the foaming portion includes a second foaming portion disposed at a free end of the second auxiliary material, and the first auxiliary material and the second auxiliary material are located on the same side of the base body.

The production process of the internal water scraping decorative strip comprises the steps of respectively injecting a soft material, a hard material and a foaming material into an extrusion die, enabling the soft material, the hard material and the foaming material to flow into a fusion zone in the extrusion die along respective channels, and enabling the soft material, the hard material and the foaming material to form an auxiliary material, a base body and a foaming part after being combined in the fusion zone.

As a further improvement of the technical scheme, the foaming material is formed by mixing and foaming a microcapsule foaming material and polyethylene particles.

As a further improvement of the above technical solution, the microcapsule foam material contains hydrocarbon and a propylene polymer.

The production process of the internal scraping water decorative strip comprises the steps of respectively injecting a soft material, a hard material, a foaming material and a flocking material into an extrusion die, enabling the soft material, the hard material, the foaming material and the flocking material to flow into a fusion area in the extrusion die along respective channels, and enabling the soft material, the hard material, the foaming material and the flocking material to form an auxiliary material, a base body, a foaming part and a flocking part after the soft material, the hard material, the foaming material and the flocking material are combined in the fusion area.

As a further improvement of the technical scheme, the foaming material is formed by mixing and foaming a microcapsule foaming material and polyethylene particles.

As a further improvement of the above technical solution, the microcapsule foam material contains hydrocarbon and a propylene polymer.

The invention has the beneficial effects that: the invention achieves the purpose of reducing the density and the weight of the product by adopting the foaming part material at the non-functional part with larger dosage of the soft material.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.

FIG. 1 is a schematic view of a prior art internal wiper strip;

Fig. 2 is a schematic view of an inner wiper strip in an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

in the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.