TWI740259B - Core for manufacturing a curved reflective plate - Google Patents

Abstract

A core for manufacturing a curved reflective plate is provided to solve the problem that the illuminance of the conventional reflective plate is insufficient due to the disposition on the curved face which leads to the scattering of the reflected light. The core includes a plurality of groups of columns, each being formed by a plurality of columns arranged in parallel and flushing each other. The top of each column forms a corn by an apex and three reflective faces. The three reflective faces are on the same plane. Each group of columns includes at least one reflective recess formed by three reflective faces of the columns. The groups of columns are arranged in an array. The at least one reflective recess faces in the same direction.

Description

Mold core for manufacturing curved reflector

The present invention relates to the production of a traffic safety reflective device, in particular to a mold core for manufacturing a curved surface reflective sheet for improving the efficiency of curved surface reflection.

Please refer to Figure 1, which is a conventional mold core 9. The mold core 9 is composed of a plurality of needle posts 91 closely arranged side by side. A number of grooves 92 are formed staggeredly arranged on the surface, and each groove 92 is surrounded by the pyramidal slope of the adjacent needle post 91. Metal ions are deposited on the top surface of the core 9 by electroforming technology. Stripping off the shaped metal material can completely reproduce the shape and arrangement sequence of the grooves 92 of the mold core 9. As a manufacturing mold for the conventional reflector, the finished reflector produced has a corresponding number The reflective surface structure of each groove 92, when light is incident on the reflective sheet, the light is reflected on the reflective surface of each recessed structure several times to produce reflected light with the same angle, so that the conventional reflective sheet The angle and intensity of the reflected light can meet the standards established by traffic safety regulations.

With the development of the automobile industry, car bodies have diverse shapes and focus on streamlined bodies. Therefore, accessories such as lights, reflectors, etc. located on the exterior of the car body must be modified into a streamlined curved surface according to the appearance design of the car. In order to manufacture the curved reflective sheet of the conventional mold core 9, it is necessary to prop up the several closely arranged needle posts 91 on a set curved surface, so that the core 9 consists of the vertices of the several needle posts 91 to form a curved surface distribution. Among them, A significant height difference is formed between the several needle posts 91 in the high curvature area of the mold core 9. Thus, the groove structure of the curved reflective sheet manufactured by the mold core 9 is, The higher the curvature, the greater the deformation range, and the reflection path of the light in the deformed groove structure changes, so that the brightness of the reflected light is dispersed and the angle is shifted, which causes the curved reflector to be in the curved part. The reflective function is weakened or even ineffective, and cannot meet the requirements and specifications of the reflective sheet.

In view of this, there is indeed a need to improve the conventional mold cores used for manufacturing curved reflective sheets.

In order to solve the above-mentioned problems, the purpose of the present invention is to provide a mold core for manufacturing a curved reflector, which can improve the reflection efficiency of the reflector at the curved part.

The second objective of the present invention is to provide a mold core for manufacturing curved reflectors, which can be used to manufacture reflectors for various curved surfaces.

Another object of the present invention is to provide a mold core for manufacturing a curved reflector, which can adjust the curvature change and the intensity of the reflected light.

The elements and components described in the full text of the present invention use the quantifiers "one" or "one" for convenience and to provide the general meaning of the scope of the present invention; in the present invention, it should be construed as including one or at least one, and single The concept of also includes the plural, unless it clearly implies other meanings.

Approximate terms such as "combination", "combination" or "assembly" mentioned in the full text of the present invention mainly include the types that can be separated without destroying the components after being connected, or the components cannot be separated after being connected, which are common knowledge in the field Those can be selected based on the materials of the components to be connected or assembly requirements.

The mold core for manufacturing the curved reflective sheet of the present invention includes: a plurality of mold pillar groups, each mold pillar group is formed by a plurality of mold pillars arranged side by side and aligned, and the top of each mold pillar is composed of a vertex and Three reflecting surfaces form a pyramid, the several vertices are located on the same plane, each of the mold column groups has at least one reflection groove, and the reflecting groove is formed by the reflecting surfaces of three adjacent mold columns. The mold pillar groups are combined in an array, and the reflection grooves face the same direction; and a jig, the jig has a curved surface, and the jig faces the curved surface and contacts the vertices of the mold pillars to adjust The relative height between the mold column groups.

Accordingly, the mold core used for manufacturing the curved reflective sheet of the present invention, by converging a plurality of the mold pillars to form the mold pillar group, the reflective grooves on each mold pillar group can correspond to each of the reflectors on the reflective sheet. In addition, by controlling the relative height between several mold column groups, the curvature change on the mold core can be adjusted to produce a reflective sheet with a streamlined surface, which can improve the reflection efficiency of the reflector at the curved part. And can increase the product types and types of reflector installation applications.

Among them, the mold pillar group is composed of 6 mold pillars, and 2 reflection grooves are formed. In this way, the core composition system can be composed of two reflective grooves as the basic unit, which has the effect of providing an array combination mode and adjusting the reflective efficiency.

Among them, the mold pillar group is composed of 7 mold pillars, and 3 of the reflection grooves are formed. In this way, the core composition system can be composed of three reflection grooves as basic units, which has the effect of providing array combination mode and adjusting the reflection efficiency.

Among them, the mold column group is composed of 10 mold columns, and 5 of the reflection grooves are formed. In this way, the core composition system can be composed of 5 reflection grooves as the basic unit, which has the effect of providing the array combination mode and adjusting the reflection efficiency.

Among them, the mold pillar group is composed of 12 mold pillars, and 7 reflection grooves are formed. In this way, the core composition system can be composed of 7 reflection grooves as basic units, which has the effect of providing array combination mode and adjusting the reflection efficiency.

The mold core used for manufacturing the curved reflective sheet of the present invention may further include a base, the base has a frame, and the plurality of mold pillar clusters are placed in the frame. In this way, the framework can Tightly restrain the several mold column groups, which has the effect of forming the mold core.

Wherein, the contour shape of the inner edge of the frame conforms to the shape and size of the manufactured reflector. In this way, the several mold column groups can be combined into the shape of the reflective sheet, which has the effect of determining the appearance of the product.

Wherein, the area of the curved surface covers the several mold column groups. In this way, the curved surface system can completely replicate the curved appearance of the product on the mold core, and has the function of determining the streamlined appearance of the product.

〔this invention〕

1: Modular column group

11: Mold column

11a: vertex

11b: reflective surface

12: reflection groove

2: base

21: Frame

3: Fixture

31: curved surface

[Traditional]

9: Mould core

91: Needle Column

92: Groove

[Picture 1] A core diagram of a conventional reflector.

[Figure 2] An exploded perspective view of a preferred embodiment of the present invention.

[Figure 3] A top view of a mold column group in a preferred embodiment of the present invention.

[Figure 4a] A top view of a mold column group in another embodiment of the present invention.

[Figure 4b] A top view of a mold column group according to another embodiment of the present invention.

[Figure 4c] A top view of a mold column group according to another embodiment of the present invention.

In order to make the above and other objectives, features and advantages of the present invention more comprehensible, the following describes the preferred embodiments of the present invention in conjunction with the accompanying drawings in detail as follows:

Please refer to Figure 2, which is a preferred embodiment of the present invention for manufacturing a curved reflector mold core. The tops of the mold column groups 1 face the same direction.

Please refer to Fig. 3, each of the mold column groups 1 is formed by combining several mold columns 11 side by side and aligned. The top of each mold column 11 has a vertex 11a and three surrounding the vertex 11a. The reflecting surface 11b, the vertex 11a and the three reflecting surfaces 11b constitute a pyramid, there is no height difference between the vertex 11a on each mold column group 1, and at least one vertex 11a is formed between the vertex 11a The reflecting groove 12 is surrounded by the reflecting surfaces 11b of the three adjacent mold pillars 11, and the angle between the three reflecting surfaces 11b is close to perpendicular to each other. In this embodiment, the mold pillar group 1 is composed of six mold posts 11 and two reflecting grooves 12 are formed, but the present invention is not limited to this.

Please refer to Figures 2 and 3, the mold core used for manufacturing curved reflectors of the present invention may also have a base 2. The base 2 has a frame 21, and the inner edge contour shape of the frame 21 needs to conform to the manufactured The shape and size of the reflective sheet, the frame 21 is used to centrally place the plurality of mold column groups 1 so that the plurality of mold column groups 1 are parallel to each other and tightly confined in the frame 21, and each of the mold column groups 1 The vertex 11a protrudes from the base 2, and the height of each mold column group 1 relative to the frame 21 can be adjusted.

The mold core used for manufacturing the curved reflective sheet of the present invention can also have a jig 3, the jig 3 has a curved surface 31, the curved surface 31 can match the reflective curved surface of the reflective sheet manufactured, and the area range of the curved surface 31 Preferably, it can cover the plurality of mold column groups 1 in the frame 21, and the jig 3 faces the curved surface 31 and contacts the apexes 11a of the plurality of mold columns 11, which can be adjusted by the unevenness of the curved surface 31 The height difference between the several modular column groups 1.

According to the aforementioned structure, the plurality of mold column groups 1 are gathered by the base 2 so that all the reflection grooves 12 of the plurality of mold column groups 1 face the same direction, which can be the incident direction of light, and then the treatment A 3 guides the height difference between the plurality of mold column groups 1, the vertices 11a of the plurality of mold columns 11 can form a curved surface distribution, and the curved reflective sheet manufactured through the mold core of the present invention has several The reflective portions correspond to the reflective grooves 12 of each mold column group 1. Since there is no height difference between the three reflective surfaces 11b forming the reflective grooves 12, they are almost perpendicular to each other, and each of the reflective portions can generate reflected light with concentrated brightness. ; Relatively speaking, there is a height difference between the several mode column groups 1, which causes the reflection surface 11b at the junction of the several mode column groups 1 to fail to form an effective reflection structure, so, The above-mentioned junction corresponds to the part on the manufactured reflective sheet, which cannot generate concentrated reflected light.

Please refer to Figures 4a to 4c, which are other embodiments of the mold column group 1. The composition and shape of each mold column group 1 and the number of mold columns 11 included in it can be adjusted to conform to the manufacturing of the reflective sheet. As shown in Figure 4a, the mold column group 1 is composed of seven mold columns 11 and three of the reflection grooves 12 are formed; as shown in Figure 4b, the mold column group 1 is composed of 10 mold columns. The mold pillars 11 are composed of 5 reflecting grooves 12; as shown in Figure 4c, the mold pillar group 1 is composed of 12 mold pillars 11 and 7 reflecting grooves 12 are formed. Thus, according to the production The shape, size, curvature and other production specifications of the reflector can be selected from various styles of the mold column group 1 as a mold core.

By increasing the number of the mold pillars 11 of each mold pillar group 1, the number of the reflective grooves 12 can be increased, so that the manufactured curved reflective sheet has more reflective parts, and the curved reflective sheet can be improved. The reflective efficiency can meet the standards set by the traffic safety laws and regulations; relatively speaking, reducing the number of mold pillars 11 of each mold pillar group 1 can increase the ratio of the number of mold pillar groups 1 to the area of the reflector. It is easier to manufacture a streamlined curved reflective sheet.

In summary, the mold core used for manufacturing curved reflective sheet of the present invention, by converging several mold pillars to form the mold pillar group, the reflective grooves on each mold pillar group can correspond to each other on the reflector sheet. The reflective part, and by controlling the relative height between several mold column groups, can adjust the curvature change on the mold core to produce a reflective sheet with a streamlined curved surface, which improves the reflection efficiency of the reflective plate at the curved part , And increase the types and types of products that reflectors can be installed and applied.

Although the present invention has been disclosed using the above-mentioned preferred embodiments, it is not intended to limit the present invention. Anyone who is familiar with the art without departing from the spirit and scope of the present invention may make various changes and modifications relative to the above-mentioned embodiments. The technical scope of the invention is protected. Therefore, the scope of protection of the invention shall be subject to the scope of the attached patent application.

1: Modular column group

11: Mold column

11a: vertex

11b: reflective surface

12: reflection groove

Claims (8)

A mold core for manufacturing curved reflective sheets, comprising: a plurality of mold pillar groups, each mold pillar group is formed by a plurality of mold pillars side by side and aligned, the top of each mold pillar is composed of a vertex and three The reflective surface constitutes a pyramid, the vertices are located on the same plane, each of the mold column groups has at least one reflective groove, and the reflective groove is surrounded by the reflective surfaces of three adjacent mold columns. The column groups are combined in an array, and the reflection grooves face the same direction; and a jig, the jig has a curved surface, and the jig faces the curved surface and contacts the vertices of the plurality of mold posts to adjust each The relative height between the mold column groups. For example, the mold core for manufacturing a curved reflective sheet of claim 1, wherein the mold pillar group is composed of 6 mold pillars, and 2 reflection grooves are formed. For example, the mold core used for manufacturing the curved reflective sheet of claim 1, wherein the mold pillar group is composed of 7 mold pillars, and 3 of the reflection grooves are formed. For example, the mold core for manufacturing a curved reflective sheet of claim 1, wherein the mold pillar group is composed of 10 mold pillars and 5 reflection grooves are formed. For example, the mold core for manufacturing a curved reflective sheet of claim 1, wherein the mold pillar group is composed of 12 mold pillars and 7 reflection grooves are formed. For example, the mold core for manufacturing the curved reflective sheet of any one of claims 1 to 5 further includes a base having a frame, and the plurality of mold pillar clusters are placed in the frame. For example, the mold core for manufacturing a curved reflective sheet according to claim 6, wherein the contour shape of the inner edge of the frame conforms to the shape and size of the manufactured reflective sheet. For example, the mold core for manufacturing curved reflector in claim 1, wherein the area of the curved surface covers the plurality of mold column groups.

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