CN203418687U - A mold for producing a light guide plate - Google Patents

Abstract

The utility model discloses a mold for producing a light guide plate, comprising a glass upper mold and a glass lower mold made of glass material, the glass lower mold is provided with a mold cavity for containing a casting liquid and molding a light guide plate, the shape of the mold cavity matches the shape of the finished light guide plate, a plurality of small molding recesses or protrusions for molding optical structural points on the surface of the light guide plate are provided in the bottom surface of the mold cavity, and a plurality of small molding recesses or protrusions for molding optical structural points on the surface of the light guide plate are provided on the bottom surface of the glass upper mold. The utility model can produce a light guide plate that meets the requirements through a one-time molding process, thereby reducing equipment costs and production costs.

Description

A mold for producing a light guide plate

technical field

The utility model relates to the technical field of light guide plates, in particular to a mold for producing light guide plates.

Background technique

In the prior art, the light guide plate is continuously extruded by a screw extruder, and the extruded large plate is cut to form a small plate unit, and then laser processing or hot pressing is performed on the small plate unit. To process various optical cavities or optical bumps, the light guide plate requires multiple processes and various processing equipment, the production efficiency is low, and the production cost is high, so it is necessary to improve it.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of this utility model is to provide a mold for producing light guide plates, which has simple structure, low equipment cost, high production efficiency, and reduces the production cost of light guide plates.

In order to achieve the above object, the technical solution adopted in the utility model is:

A mold for producing a light guide plate, including an upper glass mold and a lower glass mold made of glass material. The lower glass mold is provided with a mold cavity for containing a pouring liquid and forming a light guide plate. The shape of the mold cavity is the same as that of the finished light guide plate. The shapes are matched, the bottom surface of the mold cavity is provided with a number of forming small recesses or protrusions for forming the optical structure points on the surface of the light guide plate, and the bottom surface of the glass upper mold is provided with several optical points for forming the surface of the light guide plate. Formed small dimples or protrusions of structural points.

In a further technical solution, the mold further includes a clamp, and the clamp fixes the upper glass mold and the lower glass mold after mold closing.

In a further technical solution, the outline shape of the cavity formed after the upper glass mold and the lower glass mold are molded together is the same as the outline shape of the finished light guide plate.

In a further technical solution, the edge of the mold cavity of the lower glass mold is provided with an edge control cavity corresponding to the edge cut shape of the light guide plate.

In a further technical solution, the upper glass mold is provided with a pressing portion, and the pressing portion is pressed into the mold cavity of the lower glass mold after the upper glass mold and the lower glass mold are molded together.

In a further technical solution, the pressing part of the glass upper mold protrudes from the bottom surface of the glass upper mold.

After adopting the above structure, the utility model has the advantages compared with the prior art: the utility model can produce a light guide plate that meets the requirements through a molding process, and the mold core can be replaced, and different sizes and profiles can be produced. The shape of the light guide plate can be replaced by a mold core with a corresponding shape. The entire pouring equipment, glass upper mold and glass lower mold are common, and the versatility is strong, which reduces equipment costs and production costs.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the structural representation of the mold of the present utility model.

Fig. 2 is a schematic structural view of the mold of the present invention after mold closing.

Fig. 3 is a schematic structural view of the glass lower mold of the present invention.

Fig. 4 is a structural schematic diagram of the light guide plate formed by the utility model.

In the figure: 1. Glass upper mold 2, glass lower mold 4, light guide plate 5, raised part 7, mold cavity 8, pressing part.

Detailed ways

The following descriptions are only preferred embodiments of the present utility model, and do not therefore limit the protection scope of the present utility model.

Embodiments, see Figures 1 to 4: a mold for producing a light guide plate, including a glass upper mold 1 and a glass lower mold 2 made of glass material, the glass lower mold 2 is provided with a mold for containing the pouring liquid and forming The mold cavity 7 of the light guide plate 4, the shape of the mold cavity 7 matches the shape of the finished light guide plate 4, and the bottom surface of the mold cavity 7 is provided with a number of forming small recesses or holes for forming the optical structure points on the surface of the light guide plate 4. Protruding part, the bottom surface of the glass upper mold 1 is provided with a number of forming small recesses or protruding parts for forming the optical structure points on the surface of the light guide plate 4 . The upper glass mold 1 is provided with a pressing portion 8 , and the pressing portion 8 of the upper glass mold 1 protrudes from the bottom surface of the upper glass mold 1 . After the glass upper mold 1 and the glass lower mold 2 are closed, the pressing part 8 is pressed into the mold cavity 7 of the glass lower mold 2 . The contour shape of the cavity formed after the upper glass mold 1 and the lower glass mold 2 are molded together is the same as the contour shape of the finished light guide plate 4 . The edge of the mold cavity 7 of the lower glass mold 2 is provided with an edge control cavity corresponding to the edge cut shape of the light guide plate 4 . The mold also includes a clamp, and the clamp fixes the glass upper mold 1 and the glass lower mold 2 after mold closing.

The mold of the utility model only has a glass upper mold 1 and a glass lower mold 2. The mold is simple and the mold cost is low. It is used to produce the light guide plate 4. It is produced by a pouring process, and the pouring material is injected into the mold cavity 7 of the glass lower mold 2. , and then the upper glass mold 1 and the lower glass mold 2 are clamped, the pressing part 8 of the upper glass mold 1 is pressed into the mold cavity 7 of the lower glass mold 2, and then heated to cause the polymerization reaction of the casting liquid, so that the light guide plate 4 is formed, and the optical recesses or optical bumps on the two surfaces of the light guide plate 4 are simultaneously formed. The utility model can produce the light guide plate 4 that meets the requirements through a molding process, and the mold can be replaced, and the light guide plate 4 of different sizes and outline shapes can be produced, thereby reducing equipment costs and production costs.

The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and scope of application. The content of this specification should not be understood as Limitations on the Invention.

Claims (6)

1. a mould of producing LGP, it is characterized in that: comprise glass patrix (1) and the glass counterdie (2) by glass material, made, glass counterdie (2) is provided with for holding potting syrup and molding the die cavity (7) of LGP (4), the shape of the shape of die cavity (7) and finished product LGP (4) matches, in the bottom surface of die cavity (7), be provided with some for molding the little depression of moulding or the lug boss of the optical texture point on LGP (4) surface, the bottom surface of glass patrix (1) is provided with some for molding the little depression of moulding or the lug boss of the optical texture point on LGP (4) surface.

2. a kind of mould of producing LGP according to claim 1, is characterized in that: described mould also comprises fixture, and fixture is glass patrix (1) and the glass counterdie (2) after matched moulds fixedly.

3. a kind of mould of producing LGP according to claim 1, is characterized in that: described glass patrix (1) is identical with the contour shape of finished product LGP (4) with the contour shape of the cavity forming after glass counterdie (2) matched moulds.

4. a kind of mould of producing LGP according to claim 3, is characterized in that: the edge that die cavity (7) edge of described glass counterdie (2) is provided with corresponding LGP (4) cuts the edge control chamber of shape.

5. a kind of mould of producing LGP according to claim 4, it is characterized in that: described glass patrix (1) is provided with pressing portion (8), after glass patrix (1) and glass counterdie (2) matched moulds, pressing portion (8) is pressed in the die cavity (7) of glass counterdie (2).

6. a kind of mould of producing LGP according to claim 5, is characterized in that: the pressing portion (8) of described glass patrix (1) protrudes from the bottom surface of glass patrix (1).

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