Aspherical composite molding machine

Abstract

The utility model discloses an aspheric composite molding machine, comprising: a turntable and a lens pressing plate. The turntable can be rotatably arranged. The turntable is provided with an aspheric mold core. The aspheric mold core has an aspheric mold surface. The lens pressing plate is provided with a spherical glass lens. A molding gap is left between the aspheric mold surface and the spherical glass lens. In the aspheric composite molding machine of the utility model, resin is filled in the molding gap during production. During the molding process, the resin can be formed by relative rotation between the aspheric mold surface and the spherical glass lens, so that the resin layer with an aspheric shape formed by the aspheric mold surface is bonded to the glass spherical lens as the base material, thereby forming an aspheric composite structure, thereby realizing the molding production of composite aspheric lenses.

Description

Technical Field

[0001] The utility model relates to the technical field of lens processing equipment, in particular to an aspheric composite molding machine. Background Art

[0002] In the prior art, a mold is usually used to make a photocurable resin to manufacture an aspheric lens. In the production of aspheric lenses, the adaptability of traditional production equipment is weak. Convex composite aspheric lenses are processed by convex molding machines, and concave composite aspheric lenses are processed by concave molding machines. The equipment utilization rate is low and the equipment cost is high. Utility Model Content

[0003] The utility model aims to provide an aspherical composite molding machine to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The technical solutions adopted to solve the above technical problems are:

[0005] An aspheric composite molding machine comprises: a turntable and a lens pressing plate; the turntable is rotatably arranged, the turntable is provided with an aspheric mold core, the aspheric mold core has an aspheric mold surface, the lens pressing plate is provided with a spherical glass lens, and a molding gap is left between the aspheric mold surface and the spherical glass lens.

[0006] The aspheric composite molding machine provided by the utility model has at least the following beneficial effects: the molding gap is filled with resin, and during the molding process, the resin can be formed by relative rotation between the aspheric mold surface and the spherical glass lens, so that the resin layer with an aspheric shape formed by the aspheric mold surface is bonded to the glass spherical lens as the base material, thereby forming an aspheric composite structure, thereby realizing the molding production of composite aspheric lenses.

[0007] As a further improvement of the above technical solution, the turntable and the lens pressing plate are arranged up and down.

[0008] As a further improvement of the above technical solution, the turntable has a rotation axis extending up and down, and the aspheric mold surface is coaxially arranged at one end of the aspheric mold core close to the lens pressing plate.

[0009] As a further improvement of the above technical solution, the lens pressing plate has a light opening that passes through the top, and the spherical glass lens is arranged in the light opening.

[0010] As a further improvement of the above technical solution, the aspherical mold core is arranged on one side of the spherical glass lens, and a diffusion plate is arranged on the other side of the spherical glass lens.

[0011] As a further improvement of the above technical solution, the lens pressing plate is in a frustum shape, and the light port and the diffusion plate are aligned up and down.

[0012] As a further improvement of the above technical solution, the lens pressing plate has an upper cavity and a lower cavity, the upper cavity and the lower cavity are arranged up and down, the light port is arranged at the upper end of the upper cavity, and the diffuser plate is arranged at the upper end of the lower cavity.

[0013] As a further improvement of the above technical solution, the aspheric mold core is detachably mounted on the turntable.

[0014] As a further improvement of the above technical solution, the spherical glass lens can be detachably mounted on the lens pressing plate.

[0015] As a further improvement of the above technical solution, the turntable and / or the lens pressing plate are adjustable in the up and down directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 This is a structural cross-sectional view of an embodiment of the aspheric composite molding machine provided by the utility model, wherein the arrow indicates the ultraviolet irradiation path;

[0018] Figure 2 This is a structural cross-sectional view of another embodiment of the aspheric composite molding machine provided by the utility model, wherein the arrow indicates the ultraviolet irradiation path.

[0019] In the figure: 100, turntable; 110, positioning groove; 200, aspheric mold core; 210, aspheric mold surface; 220, limit part; 300, lens pressing plate; 310, light port; 320, diffusion plate; 330, upper cavity; 340, lower cavity; 400, spherical glass lens; 500, molding gap. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0021] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 therefore cannot be understood as a limitation on the present invention.

[0022] In the description of the present utility model, if there are words such as "several", it means one or more, "more" means more than two, greater than, less than, exceed, etc. are understood to exclude the number, and above, below, within, etc. are understood to include the number.

[0023] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0024] Reference Figure 1 to Figure 2 The aspheric composite molding machine of the utility model makes the following embodiments:

[0025] An aspherical composite molding machine includes a rotating table 100 and a lens pressing plate 300.

[0026] The turntable 100 is rotatably arranged relative to the lens pressing plate 300. The turntable 100 is provided with an aspheric mold core 200. The aspheric mold core 200 has an aspheric mold surface 210. The lens pressing plate 300 is provided with a spherical glass lens 400. A molding gap 500 is formed between the aspheric mold surface 210 and the spherical glass lens 400.

[0027] In actual use, the molding gap 500 is filled with resin. During the molding process, the resin can be transferred from the aspheric mold surface 210 to the spherical glass lens 400 through relative rotation, so that the aspheric resin layer formed by the aspheric mold surface 210 is bonded to the glass spherical lens as the base material to form an aspheric composite structure, thereby realizing the molding production of the composite aspheric lens.

[0028] In this embodiment, the aspheric composite molding machine includes a frame. The turntable 100 and the lens pressing plate 300 are both installed on the frame. The frame is provided with a rotation driving component. The rotation driving component is used to drive the turntable 100 to rotate relative to the frame. Considering the convenience of controlling speed and accuracy, the rotation driving component in this embodiment adopts a servo motor. The output shaft of the rotation driving component is connected to the turntable 100 in a transmission manner. In some other embodiments, the rotation driving component can be other rotation driving elements such as a stepping motor.

[0029] The rotation axis of the turntable 100 extends in the up-down direction. The turntable 100 and the lens pressing plate 300 are arranged vertically. The aspheric mold surface 210 and the spherical glass lens 400 are respectively arranged at the upper and lower ends of the turntable 100 and the lens pressing plate 300 facing each other.

[0030] In this embodiment, the turntable 100 is disposed above the lens pressing plate 300. The aspheric mold core 200 is disposed at the lower side of the turntable 100. The aspheric mold surface 210 is disposed at the lower end of the aspheric mold core 200, and the aspheric mold surface 210 is centrally aligned with the rotation axis of the turntable 100. The spherical glass lens 400 is coaxially disposed with the rotation axis of the turntable 100. The spherical glass lens 400 is disposed at the upper end of the lens pressing plate 300. The concave surface of the spherical glass lens 400 is disposed upward.

[0031] In the existing molding production, an ultraviolet curable resin composition is generally used to fill the molding gap 500. The lens pressing plate 300 has a light irradiation port 310 that passes through from top to bottom. The spherical glass lens 400 is arranged in the light irradiation port 310. In the actual production process, the resin in the molding gap 500 is irradiated with ultraviolet rays from one side of the spherical glass lens 400 through the light irradiation port 310, so that the resin layer can be composite-molded on the spherical glass lens 400.

[0032] In a further embodiment, in order to make the ultraviolet rays irradiate evenly, the lens pressing plate 300 is further provided with a diffusion plate 320. The aspherical mold core 200 and the diffusion plate 320 are respectively arranged on the upper and lower sides of the spherical glass lens 400. After passing through the diffusion plate 320, the ultraviolet rays can be irradiated more evenly on the spherical glass lens 400.

[0033] The diffuser 320 can be based on a substrate such as PMMA, PC, PS, PP, etc., and an inorganic or organic light diffuser can be added thereto, or the light can be artificially adjusted through an array arrangement of micro-feature structures on the surface of the substrate to cause the light to be refracted, reflected, and scattered in different directions, thereby changing the path of the light and achieving sufficient dispersion of the incident light to produce an optical diffusion effect.

[0034] The shape of the composite aspheric lens is determined by the shape of the spherical glass lens 400 and the rotation shape of the aspheric mold surface 210. In order to meet different production requirements of composite aspheric lenses, it is preferred that the aspheric mold core 200 and the spherical glass lens 400 be easily replaceable. In this embodiment, the spherical glass lens 400 is detachably mounted on the lens pressing plate 300, and the aspheric mold core 200 is detachably mounted on the turntable 100.

[0035] Specifically, the turntable 100 and the aspheric mold core 200 are positioned with each other through a radially extending slot structure and are locked and connected by screws. Specifically, the lower end of the turntable 100 has a radially extending positioning slot 110, and the upper end of the aspheric mold core 200 has a radially extending limiting portion 220 embedded in the positioning slot 110.

[0036] In the vertical projection, the shape of the illumination port 310 is consistent with the shape of the spherical glass lens 400, and the edge of the spherical glass lens 400 is placed on the edge of the illumination port 310. A plurality of negative pressure holes are arranged at the edge of the illumination port 310, and the negative pressure holes are connected to the vacuum generating element.

[0037] In actual use, the negative pressure hole generates negative pressure through the vacuum generating element, so that the edge of the spherical glass lens 400 can be adsorbed and closely attached to the illumination port 310 through the negative pressure hole. In a further embodiment, in order to stabilize the negative pressure adsorption, the cross-sectional shape of the illumination port 310 is configured according to the shape of the spherical glass lens 400, generally a ring-shaped spherical surface.

[0038] In this embodiment, the lens pressing plate 300 is in a truncated cone shape. The illumination port 310 is disposed at the upper end of the lens pressing plate 300. The diffusion plate 320 is aligned with the illumination port 310 up and down. The lens pressing plate 300 has a hollow upper cavity 330 and a lower cavity 340. The illumination port 310 is disposed at the upper end of the upper cavity 330. The diffusion plate 320 is disposed at the upper end of the lower cavity 340.

[0039] In a further embodiment, the frame includes an upper frame and a lower frame, and the upper frame and the lower frame are adjustably connected in the up-down direction. The turntable 100 and the lens pressing plate 300 are respectively mounted on the adjustable frame. In actual use, by adjusting the relative positions of the upper frame and the lower frame in the up-down direction, the distance between the turntable 100 and the lens pressing plate 300 is changed, so that the thickness of the molding gap 500 can be adjusted according to demand.

[0040] Specifically, the upper frame and the lower frame can be slidably connected by a linear slide rail extending in the up-down direction, and the lower frame is rotatably provided with an adjusting screw axially extending in the up-down direction. The upper frame is threadedly connected to the adjusting screw.

[0041] Refer to the attached Figure 2 In some other embodiments, the turntable 100 can be disposed below the lens pressing plate 300 , the aspheric mold core 200 is disposed on the upper side of the turntable 100 , and the spherical glass lens 400 is disposed at the lower end of the lens pressing plate 300 .

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] Although the embodiments of the present invention have been shown and described, those skilled in the art may make various changes, modifications, substitutions and variations to these embodiments without departing from the principles and purpose of the present invention. These changes, modifications, equivalent variations or substitutions are all included in the scope defined by the claims of this application. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. An aspherical composite molding machine, characterized in that: include: A turntable and a lens pressing plate; the turntable can be rotatably arranged, the turntable is provided with an aspheric mold core, the aspheric mold core has an aspheric mold surface, the lens pressing plate is provided with a spherical glass lens, and a molding gap is left between the aspheric mold surface and the spherical glass lens.

2. The aspherical composite molding machine according to claim 1, characterized in that: The rotating platform and the lens pressing plate are arranged up and down.

3. The aspheric composite molding machine according to claim 2, characterized in that: The turntable has a rotation axis extending up and down, and the aspheric mold surface is coaxially arranged at one end of the aspheric mold core close to the lens pressing plate.

4. The aspherical composite molding machine according to claim 2, characterized in that: The lens pressing plate has a light opening which passes through from top to bottom, and the spherical glass lens is arranged at the light opening.

5. The aspherical composite molding machine according to claim 4, characterized in that: The aspherical mold core is arranged on one side of the spherical glass lens, and a diffusion plate is arranged on the other side of the spherical glass lens.

6. The aspherical composite molding machine according to claim 5, characterized in that: The lens pressing plate is in a frustum shape, and the light port and the diffusion plate are arranged vertically aligned.

7. The aspherical composite molding machine according to claim 6, characterized in that: The lens pressing plate has an upper cavity and a lower cavity, the upper cavity and the lower cavity are arranged up and down, the light port is arranged at the upper end of the upper cavity, and the diffusion plate is arranged at the upper end of the lower cavity.

8. The aspherical composite molding machine according to claim 1, characterized in that: The aspheric mold core is detachably mounted on the turntable.

9. The aspherical composite molding machine according to claim 1, characterized in that: The spherical glass lens is detachably mounted on the lens pressing plate.

10. The aspherical composite molding machine according to claim 1, characterized in that: The rotating platform and / or the lens pressing plate are adjustable in the up and down directions.

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