CN211642061U

CN211642061U - Interior exterior trim working of plastics structure and make mould thereof

Info

Publication number: CN211642061U
Application number: CN202020160685.7U
Authority: CN
Inventors: 缪然之; 周建军; 高源�
Original assignee: Chongqing Weisize Auto Parts Co ltd
Current assignee: Chongqing Weisize Auto Parts Co ltd
Priority date: 2020-02-11
Filing date: 2020-02-11
Publication date: 2020-10-09
Anticipated expiration: 2030-02-11

Abstract

The utility model provides an interior exterior trim working of plastics structure and manufacturing mould thereof for solve the poor problem of shaping quality among the prior art. In order to achieve the above objects and other related objects, the present invention provides an interior and exterior trim plastic part structure, the interior and exterior trim plastic part structure includes: a plate-shaped part, wherein the front surface of the plate-shaped part is an appearance surface; the back of the plate-shaped part is provided with a convex rib, and the convex rib and the plate-shaped part are integrally formed through an injection mold; the convex ribs comprise a first rib position and a second rib position, the first rib position and the second rib position are arranged in a crossed mode, and the wall thickness of the crossed position of the first rib position and the second rib position is larger than the thickness of the first rib position and the thickness of the second rib position respectively. The occurrence of solar spots can be prevented during injection molding.

Description

Interior exterior trim working of plastics structure and make mould thereof

Technical Field

The utility model relates to an automotive interior structure and automobile manufacturing field especially relate to an interior exterior trim working of plastics structure and manufacturing mould thereof.

Background

Because of pursuing lightweight, the wall thickness of the main body of some interior parts needs to be integrally reduced to 2mm (the wall thickness of the main body of the similar products is generally 3mm or 2.5 mm); meanwhile, in order to ensure VOC, the temperature of the material melt is required to be reduced to 200 ℃ during production.

1. The above conditions result in narrowing of the forming process window, and the forming quality is not easy to guarantee;

2. if the side glue feeding of the traditional upright mold is adopted, poor appearance or short shot can be caused due to long flow length, and meanwhile, the injection pressure is increased, so that the loss of equipment is increased, the mold locking force is increased, and flash can be caused;

3. therefore, a flip-chip mold is needed, and the glue inlet position is positioned at the geometric center of the B surface of the product, so that the filling balance can be ensured. However, the difficulty is that the flip-chip mold often causes solar stripes, and although a cooling water jacket is often arranged at a hot nozzle position when the hot runner is designed for the flip-chip mold, the structure has limited effect, and the problem cannot be fundamentally solved.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide an interior and exterior plastic part structure and a mold for manufacturing the same, which are used for solving the problem of poor molding quality in the prior art.

In order to achieve the above objects and other related objects, the present invention provides an interior and exterior trim plastic part structure, the interior and exterior trim plastic part structure includes:

a plate-shaped part, wherein the front surface of the plate-shaped part is an appearance surface;

the back of the plate-shaped part is provided with a convex rib, and the convex rib and the plate-shaped part are integrally formed through an injection mold;

the convex ribs comprise a first rib position and a second rib position, the first rib position and the second rib position are arranged in a crossed mode, and the wall thickness of the crossed position of the first rib position and the second rib position is larger than the thickness of the first rib position and the thickness of the second rib position respectively.

Optionally, the first rib position and the second rib position cross perpendicularly.

Optionally, a thickening layer is arranged between the convex rib and the plate-shaped part, the thickening layer is arranged on the back face of the plate-shaped part, and the plate-shaped part, the thickening layer and the convex rib are integrally formed through an injection mold.

Optionally, the thickening layer becomes thinner from the central position to the edge position.

Optionally, the thickness of the connecting position of the thickening layer and the convex rib is 2.5-3 mm.

Optionally, the diameter of the connecting position of the thickening layer and the convex rib is 15 mm.

Optionally, the height of the rib is 5 mm.

Optionally, the wall thickness of the rib is 1-1.2 mm.

Optionally, the thickness of the plate-shaped portion is 2 mm.

A manufacturing mold for manufacturing the internal and external decorative plastic piece structure,

the glue injection position of the mold corresponds to the position of the convex rib.

As mentioned above, the interior and exterior trim plastic part structure and the manufacturing mold thereof of the present invention have at least the following beneficial effects:

through the design to interior exterior trim working of plastics structure, increase protruding muscle, first muscle position with second muscle position cross arrangement, first muscle position with the wall thickness of second muscle position cross arrangement position is greater than respectively the thickness of first muscle position and the thickness of second muscle position. Make when carrying out injection moulding to interior exterior trim, can follow protruding muscle position injection stream, the injection in-process, the muscle position is filled at first to the stream that hot mouth jetted out, and cold burden can concentrate on the muscle position, and hot mouth becomes far away from the product surface as the heat source, and the fuse-element has certain pressure, speed, temperature loss after the muscle position simultaneously, can solve the sun spot problem when guaranteeing the lightweight.

Drawings

Fig. 1 is a schematic perspective view of the armrest inner panel of the present invention.

Fig. 2 is a partially enlarged schematic view of a in fig. 1.

Fig. 3 is a schematic view of a partial longitudinal section of the inner panel of the armrest of the present invention.

Element number description: plate-shaped part 1, convex rib 2, first rib position 21, second rib position 22, thickening layer 11.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1 to 3. It should be understood that the structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention does not have the essential significance in the technology, and any modification of the structure, change of the ratio relationship or adjustment of the size should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that can be achieved. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

The following examples are for illustrative purposes only. The various embodiments may be combined, and are not limited to what is presented in the following single embodiment.

Referring to fig. 1 to 3, the present invention provides an embodiment of an interior and exterior plastic part structure, in fig. 1, the interior and exterior plastic part structure is exemplified by a handrail inner plate. The interior trim plastic part structure includes: a plate-shaped part 1, wherein the front surface of the plate-shaped part 1 is an appearance surface; the back of the plate-shaped part 1 is provided with a convex rib 2, and the convex rib 2 and the plate-shaped part 1 are integrally formed through an injection mold; the convex rib 2 comprises a first rib position 21 and a second rib position 22, the first rib position 21 and the second rib position 22 are arranged in a crossed mode, and the wall thickness of the crossed position of the first rib position 21 and the second rib position 22 is larger than the thickness of the first rib position 21 and the thickness of the second rib position 22 respectively. Through the design to interior exterior trim working of plastics structure, increase protruding muscle 2, first muscle position 21 with second muscle position 22 sets up alternately, first muscle position 21 with the wall thickness of second muscle position 22 crossing position is greater than respectively the thickness of first muscle position 21 and the thickness of second muscle position 22. Make when carrying out injection moulding to interior exterior trim, can follow 2 position injection material flows of protruding muscle, the injection in-process, the muscle position is filled at first to the material flow that hot mouth jetted out, and cold burden can concentrate on the muscle position, and hot mouth becomes far away from the product surface as the heat source, and the fuse-element has certain pressure, speed, temperature loss after the muscle position simultaneously, can solve the sun spot problem when guaranteeing the lightweight.

In this embodiment, in fig. 1, protruding muscle 2 is established in the back geometry central point of handrail inner panel and is put for it can advance gluey from protruding muscle 2 positions, then to circulating all around, thereby has better shaping effect, further avoids appearing short penetrating.

In this embodiment, referring to fig. 1 to fig. 3, the first rib 21 and the second rib 22 cross perpendicularly. The thickness at the crossing position is thicker, so that the material flow is more convenient to circulate.

In this embodiment, referring to fig. 3, a thickening layer 11 is disposed between the rib 2 and the plate-shaped portion 1, the thickening layer 11 is disposed on the back surface of the plate-shaped portion 1, and the plate-shaped portion 1, the thickening layer 11 and the rib 2 are integrally formed by an injection mold. Alternatively, the thickening layer 11 becomes thinner from the central position to the edge position. Optionally, the thickness of the connecting position of the thickening layer 11 and the convex rib 2 is 2.5-3 mm. Optionally, the diameter of the connecting position of the thickening layer 11 and the convex rib 2 is 15 mm. The structure can prevent the shrinkage phenomenon of the product surface.

In this embodiment, the height of the rib 2 is 5 mm. Can avoid interfering with the hand piece when the assembly, guarantee the assembly precision.

In this embodiment, the wall thickness of the rib 2 is 1 to 1.2 mm. The wall thickness of the convex rib 2 influences the size of the flow channel and the interference condition of the flow channel with the hand piece, and the handrail inner plate in the size range has better assembly precision.

In the present embodiment, the plate-like portion 1 has a thickness of 2 mm. The wall thickness of a main body of a similar product is generally 3mm or 2.5mm, the thickness of a plate-shaped part 1 of 2mm needs better process requirements, and the effect of preventing solar spots on the 2mm handrail inner plate is more obvious.

the glue injection position of the mould corresponds to the position of the convex rib 2.

To sum up, the utility model discloses an increase protruding muscle 2 to the design of interior outer decoration working of plastics structure, first muscle position 21 with second muscle position 22 cross arrangement's wall thickness is greater than respectively the thickness of first muscle position 21 and the thickness of second muscle position 22. Make when carrying out injection moulding to interior exterior trim, can follow 2 position injection material flows of protruding muscle, the injection in-process, the muscle position is filled at first to the material flow that hot mouth jetted out, and cold burden can concentrate on the muscle position, and hot mouth becomes far away from the product surface as the heat source, and the fuse-element has certain pressure, speed, temperature loss after the muscle position simultaneously, can solve the sun spot problem when guaranteeing the lightweight. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. An interior and exterior plastic part structure, comprising:

2. The interior or exterior plastic part structure of claim 1, wherein: the first rib position and the second rib position are crossed vertically.

3. The interior or exterior plastic part structure of claim 1, wherein: the reinforcing rib is arranged on the plate-shaped portion, a thickening layer is arranged between the reinforcing rib and the plate-shaped portion, the thickening layer is arranged on the back face of the plate-shaped portion, and the plate-shaped portion, the thickening layer and the reinforcing rib are integrally formed through an injection mold.

4. The interior or exterior plastic part structure of claim 3, wherein: the thickening layer becomes thinner gradually from the central position to the edge position.

5. The interior or exterior plastic part structure of claim 4, wherein: the thickness of the connecting position of the thickening layer and the convex rib is 2.5-3 mm.

6. The interior or exterior plastic part structure of claim 5, wherein: the diameter of the connecting position of the thickening layer and the convex rib is 15 mm.

7. The interior or exterior plastic part structure of claim 1, wherein: the height of the convex rib is 5 mm.

8. An interior or exterior plastic part structure as claimed in any one of claims 1 to 6, wherein: the wall thickness of the convex rib is 1-1.2 mm.

9. The interior or exterior plastic part structure of claim 1, wherein: the thickness of the plate-shaped part is 2 mm.

10. A manufacturing mold for manufacturing the interior or exterior plastic part structure according to any one of claims 1 to 9, wherein: the glue injection position of the mold corresponds to the position of the convex rib.