Optical lens array mold structure

Abstract

The utility model relates to the field of optical lens injection molds, in particular to an optical lens array mold structure which comprises a supporting seat, a lower mold seat is arranged on the supporting seat, an upper mold seat is arranged on the upper surface of the lower mold seat, and a lower mold plate and an upper mold plate are sequentially stacked in a cavity of the lower mold seat from bottom to top. The upper mold plate and the lower mold plate which can be stacked together in a double-layer mode are arranged on the lower mold base, the forming cavities in each mold plate are arranged in an array mode, the mold can conduct injection molding on a plurality of optical lenses at a time, and when the upper mold plate and the lower mold plate are in circulation, circulation of liquid plastic is guaranteed; therefore, a plurality of optical lenses can be shaped and produced at one time, and the production efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical lens injection molds, in particular to an optical lens array mold structure. Background Art

[0002] An optical lens is an optical element made of a transparent material. Its surface can be spherical, or it can be a spherical lens composed of two spherical surfaces, or a lens composed of two spherical surfaces with a varying thickness in the middle. There are many types of lenses, including convex, concave, plano-convex, meniscus, biconvex, and biconcave lenses.

[0003] Currently, some optical lenses are made of plastic materials, and some plastic optical lenses are molded using injection molds. However, some injection molds can only mold a small number of optical lenses each time, resulting in low production efficiency. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an optical lens array mold structure.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An optical lens array mold structure includes a support base, a lower mold base is provided on the support base, an upper mold base is provided on the upper surface of the lower mold base, and a lower mold plate and an upper mold plate are stacked in sequence from bottom to top in a cavity of the lower mold base;

[0007] The upper template and the lower template are both disc-shaped, and a plurality of first flow channels are evenly opened in the middle of the upper surface of the upper template. A first forming cavity is opened on one side of each first flow channel, and the first forming cavities are connected to the first flow channels. The bottom surface of the upper template is tightly fitted with the upper surface of the lower template. An insert is provided on the side of the upper surface of the upper template, and a sealing gasket is attached to one side of the insert. A second groove is opened on the side of the bottom surface of the upper template.

[0008] In addition, the preferred structure is that a plurality of second flow channels are evenly opened in the middle of the upper surface of the lower template, a second molding cavity is opened on one side of each second flow channel, the second molding cavity is connected to the second flow channel, connecting blocks are symmetrically connected on both sides of the lower template plate body, an insert block is provided at the side of the upper surface of the lower template, and a sealing gasket is attached to one side of the insert block, and the insert block located on the lower template can be snapped into the second groove.

[0009] In addition, a preferred structure is that the upper template is provided with a through hole in the first flow channel, the through hole is connected to the bottom of the upper template, and a plurality of shaping blocks are evenly arranged on the bottom surface of the upper template.

[0010] In addition, the preferred structure is that multiple injection channels are opened in the upper mold base, and the bottom of each injection channel is aligned with the position where a through hole is provided in the first flow channel below. A first groove is opened on the bottom surface of the upper mold base, and the plug block located on the upper mold plate can be snapped into the first groove.

[0011] In addition, a preferred structure is that movable grooves are symmetrically provided on both sides of the cavity of the lower mold base, and the connecting blocks are arranged at the movable grooves.

[0012] The beneficial effects of the present invention are as follows: in the present invention, an upper template and a lower template that can be double-layered are arranged on the lower mold base, and the molding cavities on each template are arranged in an array, so that the mold can injection mold multiple optical lenses at one time, and when the upper template and the lower template are in circulation, the circulation of liquid plastic is ensured, so that multiple optical lenses can be molded and produced at one time, effectively improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of the overall structure of the mold;

[0014] Figure 2 It is a structural diagram of the lower die base and the upper die base buckled together;

[0015] Figure 3 Schematic diagram of the structure of the upper die base;

[0016] Figure 4 This is a structural diagram after the upper template and the lower template are separated;

[0017] Figure 5 It is a structural diagram of the upper template and the lower template;

[0018] Figure 6 The structure diagram of the upper template Figure 1 ;

[0019] Figure 7 The structure diagram of the upper template Figure 2 ;

[0020] Figure 8 This is a structural diagram of the upper template.

[0021] In the figure: 1 support base, 2 lower mold base, 21 movable groove, 3 upper mold base, 31 injection channel, 32 first groove, 4 upper template, 41 first molding cavity, 42 first flow channel, 421 through hole, 43 second groove, 5 lower template, 51 connecting block, 52 second molding cavity, 53 second flow channel, 6 shaping block, 7 insert block, 8 sealing gasket. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Reference Figure 1-8 An optical lens array mold structure includes a support base 1, a lower mold base 2 is provided on the support base 1, an upper mold base 3 is provided on the upper surface of the lower mold base 2, and a lower template 5 and an upper template 4 are stacked in sequence from bottom to top in the cavity of the lower mold base 2.

[0024] Among them, the upper template 4 and the lower template 5 are both disc-shaped, and a plurality of first flow channels 42 are evenly opened in the middle of the upper surface of the upper template 4, and a first molding cavity 41 is opened on one side of each first flow channel 42, and the first molding cavity 41 is connected to the first flow channel 42, and the bottom surface of the upper template 4 is tightly fitted with the upper surface of the lower template 5, an insert block 7 is provided at the side of the upper surface of the upper template 4, and a sealing gasket 8 is attached to one side of the insert block 7, and a second groove 43 is provided at the side of the bottom surface of the upper template 4, and a plurality of second flow channels 53 are evenly opened in the middle of the upper surface of the lower template 5, and a second molding cavity 52 is opened on one side of each second flow channel 53, and the second molding cavity 52 is connected to the second flow channel 53, and connecting blocks 51 are symmetrically connected on both sides of the plate body of the lower template 5, an insert block 7 is provided at the side of the upper surface of the lower template 5, and a sealing gasket 8 is attached to one side of the insert block 7, and the insert block 7 on the lower template 5 can be buckled into the second groove 43, and the insert block 7 and the sealing gasket 8 prevent the injection molding agent from leaking.

[0025] Moreover, the upper template 4 is provided with a through hole 421 in the first flow channel 42, and the through hole 421 is connected to the bottom of the upper template 4. A plurality of shaping blocks 6 are evenly arranged on the bottom surface of the upper template 4. The shaping blocks 6 can cooperate with the two molding cavities to be injection molded into an optical lens.

[0026] Moreover, multiple injection channels 31 are provided in the upper mold base 3, and the bottom of each injection channel 31 is aligned with the first flow channel 42 below and provided with a through hole 421. A first groove 32 is provided on the bottom surface of the upper mold base 3, and the insert block 7 located on the upper mold plate 4 can be snapped into the first groove 32. The injection channel 31 can ensure that the injection molding agent flows quickly to each first flow channel 42.

[0027] In addition, movable grooves 21 are symmetrically opened on both sides of the cavity of the lower mold base 2, and the connecting blocks 51 are arranged at the movable grooves 21. The movable grooves 21 facilitate the upward and downward movement of the connecting blocks 51.

[0028] In this embodiment, when using an injection mold to produce an optical lens, the upper template 4 and the lower template 5 are first fitted together, and then placed in the cavity of the lower mold base 2. The lower mold base 2 and the upper mold base 3 are then buckled together, and the heated injection molding plastic is input into the injection channel 31. The liquid plastic then flows out from each injection channel 31 and flows onto the first flow channel 42. A portion of the liquid plastic then flows from the first flow channel 42 into each first molding cavity 41, and can be shaped into an optical lens in cooperation with the molding block 6 at the bottom of the upper mold base 3.

[0029] The other part of the liquid plastic will flow vertically from the through hole 421 to the second flow channel 53, and then flow from the second flow channel 53 into the second molding cavity 52, and can be molded into an optical lens in conjunction with the shaping block 6 of the upper template 4. After the injection molding is completed, the upper template 4 and the lower template 5 are removed through the connecting blocks 51 on both sides, so that multiple optical lenses can be injection molded at one time.

[0030] In the present invention, an upper mold plate 4 and a lower mold plate 5 that can be double-layered are provided on the lower mold base 2, and the molding cavities on each mold plate are arranged in an array, so that the mold can injection mold multiple optical lenses at a time, and when the upper mold plate 4 and the lower mold plate 5 are in circulation, the circulation of liquid plastic is ensured, so that multiple optical lenses can be molded and produced at a time, effectively improving production efficiency.

[0031] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An optical lens array mold structure, comprising a support seat (1), characterized in that: A lower die base (2) is provided on the support base (1), an upper die base (3) is provided on the upper surface of the lower die base (2), and a lower mold plate (5) and an upper mold plate (4) are stacked in sequence from bottom to top in the cavity of the lower die base (2); The upper template (4) and the lower template (5) are both disc-shaped, and a plurality of first flow channels (42) are evenly opened in the middle of the upper surface of the upper template (4), and a first molding cavity (41) is opened on one side of each first flow channel (42), and the first molding cavity (41) is communicated with the first flow channel (42). The bottom surface of the upper template (4) is tightly fitted with the upper surface of the lower template (5), and an insert block (7) is provided on the side of the upper surface of the upper template (4), and a sealing gasket (8) is attached to one side of the insert block (7). A second groove (43) is opened on the side of the bottom surface of the upper template (4).

2. The optical lens array mold structure according to claim 1, characterized in that: A plurality of second flow channels (53) are evenly provided in the middle of the upper surface of the lower template (5), a second forming cavity (52) is provided on one side of each second flow channel (53), and the second forming cavity (52) is communicated with the second flow channel (53). Connecting blocks (51) are symmetrically connected on both sides of the plate body of the lower template (5), an insert block (7) is provided on the side edge of the upper surface of the lower template (5), and a sealing gasket (8) is attached to one side of the insert block (7), and the insert block (7) on the lower template (5) can be buckled into the second groove (43).

3. The optical lens array mold structure according to claim 1, characterized in that: The upper template (4) is provided with a through hole (421) in the first flow channel (42), the through hole (421) is connected to the bottom of the upper template (4), and a plurality of shaping blocks (6) are evenly arranged on the bottom surface of the upper template (4).

4. The optical lens array mold structure according to claim 1, characterized in that: The upper mold base (3) is provided with a plurality of injection channels (31), and the bottom of each injection channel (31) is aligned with the position of the first flow channel (42) below, and a through hole (421) is provided. A first groove (32) is provided on the bottom surface of the upper mold base (3), and an insert (7) located on the upper mold plate (4) can be buckled into the first groove (32).

5. The optical lens array mold structure according to claim 1, characterized in that: The lower die base (2) is symmetrically provided with movable grooves (21) on both sides of the cavity, and the connecting blocks (51) are arranged at the movable grooves (21).

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