Double-layer compensating mirror mold

Abstract

The utility model provides a double-layer compensating mirror mould which comprises a bottom plate unit and a top plate unit, a positioning plate and a movable plate are sequentially arranged between the bottom plate unit and the top plate unit from bottom to top, a forming lower mould is assembled in the positioning plate, a plurality of supporting column nesting assemblies are evenly assembled in the forming lower mould, and a plurality of supporting column nesting assemblies are evenly assembled in the supporting column nesting assemblies. The upper end face of each supporting column nesting assembly is sequentially provided with a plane supporting face, a small-dip-angle supporting face nested in the plane supporting face and a large-dip-angle supporting face nested in the small-dip-angle supporting face, and the small-dip-angle supporting faces and the large-dip-angle supporting faces are sequentially nested in the same inclination direction. The height of the small-dip-angle supporting face is lower than that of the plane supporting face, the height of the large-dip-angle supporting face is lower than that of the small-dip-angle supporting face, an upper forming die is assembled in the movable plate, and a plurality of mirror face forming columns are evenly assembled in the upper forming die. The utility model relates to the technical field of double-layer compensating mirror injection molding.

Description

Technical Field

[0001] The utility model relates to the technical field of double-layer compensation mirror injection molding, in particular to a double-layer compensation mirror mold. Background Art

[0002] Compensating lenses are widely used in optical devices, such as glasses and camera lenses, to correct aberrations in light paths. Traditional double-layer compensating lenses are typically made by splicing two separate lenses. First, within the mold, the two lenses need to be simultaneously adjusted in position and angle in both the X and Y directions to ensure they overlap symmetrically. This multi-directional adjustment not only increases manufacturing complexity and difficulty but can also lead to poor precision control. Secondly, because the top of the lens is aspherical and has complex tilt angles in the X and Y directions, very high precision is required for processing and adjustment, which not only increases manufacturing costs but also limits production efficiency.

[0003] It can be seen that the manufacturing method of double-layer compensation mirrors mainly has the following problems: First, the adjustment is complicated, and the position and angle of the two symmetrical lenses need to be precisely adjusted in multiple directions, which increases the difficulty and cost of manufacturing. Second, precision control is difficult. Due to the complex shape and high precision requirements of the lenses, traditional manufacturing methods are difficult to ensure the quality consistency of each product, which not only increases the complexity of manufacturing, but also easily introduces errors, affecting the optical performance of the product.

[0004] Therefore, it is imperative to redesign a double-layer compensation mirror mold. Utility Model Content

[0005] In view of the above-mentioned defects of the prior art, the present invention provides a double-layer compensation mirror mold, which aims to solve the problems of complex adjustment and difficult precision control in the manufacturing process of the double-layer compensation mirror in the prior art.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a double-layer compensation mirror mold, including a bottom plate unit and a top plate unit, a positioning plate and a dynamic position plate are sequentially arranged between the bottom plate unit and the top plate unit from bottom to top, a molding lower mold is assembled in the positioning plate, a plurality of support column nesting assemblies are evenly assembled in the molding lower mold, the upper end face of each of the support column nesting assemblies is sequentially provided with a plane support surface, a small inclination support surface nested in the plane support surface and a large inclination support surface nested in the small inclination support surface, the small inclination support surface and the large inclination support surface are sequentially nested along the same inclination direction, the height of the small inclination support surface is lower than the plane support surface, and the height of the large inclination support surface is lower than the small inclination support surface, a molding upper mold is assembled in the dynamic position plate, a plurality of mirror molding columns are evenly assembled in the molding upper mold, and correspond one to one with the support column nesting assemblies, the mirror arc surface at the lower end of the mirror molding column and the plane support surface together form a double-layer compensation mirror molding cavity.

[0007] Based on the above, the beneficial effect of a double-layer compensation mirror mold is to solve the problems of complex adjustment and difficult precision control in the manufacturing process of double-layer compensation mirrors in the prior art; it is mainly reflected in: the utility model assembles a molding lower mold in a positioning plate, and evenly assembles a number of support column nested assemblies in the molding lower mold, and the upper end faces of the support column nested assemblies are provided with a plane support surface, a small inclination support surface and a large inclination support surface in sequence. These three support surfaces are nested in sequence along the same inclination direction, ensuring precise control of aspheric surfaces and compound inclination angles during the lens molding process. At the same time, the first adjustment block and the second adjustment block included in the lower mold adjustment assembly can accurately adjust the height of the first convex support column and the upper end face of the outer support column through the first adjustment pin and the second adjustment pin, that is, adjust the height of the plane support surface and the small inclination support surface. This design greatly reduces the difficulty of precision control of the finished product, so that there is no need to frequently adjust the position and angle of the double-layer compensation mirror in multiple directions during the manufacturing process of the double-layer compensation mirror, thereby simplifying the manufacturing process and reducing the difficulty of operation.

[0008] Furthermore, the upper end surface of the molding lower mold is evenly distributed with a number of lower mold injection passages extending from the inside to the outside, and the outer end of each of the lower mold injection passages is provided with a lower mold injection hole, and the support column nesting assembly is arranged in the lower mold injection hole, and the support column nesting assembly is composed of an outer support column, a first convex support column and a second convex support column, wherein the first convex support column is nested in the outer support column, and the second convex support column is nested in the first convex support column, the upper end surface of the outer support column is the plane support surface, the upper end surface of the first convex support column is the small-angle support surface, and the second convex support column is the large-angle support surface.

[0009] Based on the above, the multi-level nested structure of the outer support column, the first convex support column and the second convex support column can accurately control the multi-layer inclined bosses on the bottom surface during the double-layer compensation mirror molding process, and through independent adjustment, the mold can adapt to the production requirements of double-layer compensation mirrors of different specifications and types, thereby improving the versatility and production efficiency of the mold.

[0010] Furthermore, a plurality of upper mold injection passages extending from the inside to the outside are evenly distributed on the lower end surface of the molding upper mold, and each of the upper mold injection passages forms an injection channel with the corresponding lower mold injection passage. An injection guide is provided in the middle of the molding upper mold, and the injection guide is positioned and installed by the dynamic position plate and the molding upper mold at the same time, and the output port at the lower end of the injection guide is connected to the gathering point of the plurality of upper mold injection passages.

[0011] Based on the above, the upper mold injection passages form injection channels with their corresponding lower mold injection passages, ensuring that the injection material can flow evenly and smoothly from the center to the surrounding areas, avoiding defects such as bubbles and material shortages caused by uneven material flow, and improving the molding quality and appearance of the product.

[0012] Furthermore, an adjustment port is provided in the positioning plate corresponding to each of the support column nesting components, and a lower mold adjustment component is configured in the adjustment port through mounting slots located on both sides of the upper end, and the lower mold adjustment component includes a first adjustment block, a first adjustment pin, a second adjustment block and a second adjustment pin, and mounting protrusions are provided on both sides of the upper end of the second adjustment block, and the two mounting protrusions are respectively adapted in the two mounting slots, and a first-level adjustment slot is provided at the upper end of the second adjustment block, and the first adjustment block is adapted in the first-level adjustment slot, and the first adjustment pin passes through the first adjustment block and is connected to the threaded hole on the bottom end face of the first convex support column for adjusting the height of the upper end face of the first convex support column, and the second adjustment pin passes through the second adjustment block and the first adjustment block at the same time, and is connected to the threaded hole on the bottom end face of the outer support column for adjusting the height of the upper end face of the outer support column.

[0013] Based on the above, the first adjustment pin passes through the first adjustment block and is connected to the threaded hole on the bottom end face of the first convex support column, and the second adjustment pin passes through the second adjustment block and the first adjustment block and is connected to the threaded hole on the bottom end face of the outer support column. This multi-stage adjustment mechanism can accurately control the height of the flat support surface and the small-angle support surface, ensuring the high-precision requirements in the double-layer compensation mirror molding process, and making the adjustment process simple and easy. The operator can accurately adjust the height of the support column by rotating the pin, which improves the convenience and efficiency of the adjustment.

[0014] Furthermore, a mirror height adjustment hole is provided in the dynamic position plate corresponding to the position of each mirror forming column, and a third adjustment pin is configured in each mirror height adjustment hole. The third adjustment pin passes through the dynamic position plate and is connected to the threaded hole on the upper end face of the mirror forming column, and is used to adjust the height of the mirror arc surface at the lower end of the mirror forming column.

[0015] Based on the above, the third adjustment pin passes through the dynamic position plate and is connected to the threaded hole on the upper end surface of the mirror molding column, so that the height of the lower end mirror arc surface of each mirror molding column can be adjusted independently, ensuring the precise position of each mirror arc surface during the lens molding process and ensuring that the curvature and thickness of each lens meet the design requirements.

[0016] In order to more clearly illustrate the above features of the present invention and the objectives to be achieved, the present invention will be further described below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 : is a three-dimensional diagram of the utility model;

[0018] Figure 2 : It is a schematic diagram of the cooperation between the positioning plate and the dynamic position plate of the utility model;

[0019] Figure 3 :for Figure 2 An enlarged schematic diagram of part A;

[0020] Figure 4 : A schematic diagram of the cooperation between the third adjustment pin and the mirror-shaped column of the utility model;

[0021] Figure 5 : A schematic diagram of the bottom end surface of the upper forming die of the present invention;

[0022] Figure 6 : It is a schematic diagram of the upper end surface of the molding lower die of the utility model;

[0023] Figure 7 :for Figure 6 An enlarged schematic diagram of part B;

[0024] Figure 8 : It is a three-dimensional schematic diagram of the support column nesting assembly of the utility model;

[0025] Figure 9 : A schematic diagram of the positioning plate of the utility model for installing the lower mold adjustment assembly;

[0026] Figure 10 : This is a schematic diagram of the cooperation between the second adjustment block and the second adjustment pin of the utility model;

[0027] Figure 11: This is a schematic diagram of the second adjusting pin of the utility model passing through the first adjusting block;

[0028] Figure 12 : is a schematic diagram of the first adjustment pin and the second adjustment pin of the present invention respectively cooperating with the first convex support column and the outer support column;

[0029] Figure 13 : It is a schematic diagram of the first-level adjustment slot of the utility model.

[0030] Explanation of the accompanying numbers: 1-bottom plate unit, 2-top plate unit, 3-positioning plate, 31-adjustment port, 32-lower mold adjustment assembly, 321-first adjustment block, 322-first adjustment pin, 323-second adjustment block, 3231-first adjustment slot, 324-second adjustment pin, 4-dynamic position plate, 5-molding lower mold, 51-support column nesting assembly, 511-flat support surface, 512-small inclination support surface, 513-large inclination support surface, 514-outer support column, 515-first convex support column, 516-second convex support column, 52-lower mold injection passage, 53-lower mold injection hole, 6-molding upper mold, 61-mirror molding column, 611-mirror arc surface, 612-mirror height adjustment hole, 613-third adjustment pin, 62-upper mold injection passage, 63-injection guide. DETAILED DESCRIPTION

[0031] like Figures 1-13 As shown, a double-layer compensation mirror mold includes a bottom plate unit 1 and a top plate unit 2, wherein a positioning plate 3 and a dynamic position plate 4 are sequentially arranged between the bottom plate unit 1 and the top plate unit 2 from bottom to top, a molding lower mold 5 is assembled in the positioning plate 3, and a plurality of support column nesting assemblies 51 are evenly assembled in the molding lower mold 5, and the upper end surface of each support column nesting assembly 51 is sequentially provided with a plane support surface 511, a small-angle support surface 512 nested in the plane support surface 511, and a large-angle support surface 513 nested in the small-angle support surface 512. The small-angle support surface 512 and the large-angle support surface 513 are nested in sequence along the same inclination direction. The height of the small-angle support surface 512 is lower than the plane support surface 511, and the height of the large-angle support surface 513 is lower than the small-angle support surface 512. The dynamic position plate 4 is equipped with a forming upper mold 6, and a number of mirror forming columns 61 are evenly equipped in the forming upper mold 6, and correspond one-to-one to the support column nesting components 51. The mirror arc surface 611 at the lower end of the mirror forming column 61 and the plane support surface 511 together form a double-layer compensation mirror forming cavity.

[0032] The upper end surface of the molding lower mold 5 is evenly distributed with a number of lower mold injection passages 52 extending from the inside to the outside, and the outer end of each of the lower mold injection passages 52 is provided with a lower mold injection hole 53, and the support column nesting assembly 51 is arranged in the lower mold injection hole 53, and the support column nesting assembly 51 is composed of an outer support column 514, a first convex support column 515 and a second convex support column 516, wherein the first convex support column 515 is nested in the outer support column 514, and the second convex support column 516 is nested in the first convex support column 515, the upper end surface of the outer support column 514 is the plane support surface 511, the upper end surface of the first convex support column 515 is the small-angle support surface 512, and the second convex support column 516 is the large-angle support surface 513.

[0033] The lower end surface of the molding upper mold 6 is evenly distributed with several upper mold injection passages 62 extending from the inside to the outside, and each of the upper mold injection passages 62 forms an injection channel with the corresponding lower mold injection passage 52. An injection guide 63 is provided in the middle of the molding upper mold 6. The injection guide 63 is positioned and installed by the dynamic position plate 4 and the molding upper mold 6 at the same time, and the output port at the lower end of the injection guide 63 is connected to the gathering point of several of the upper mold injection passages 62.

[0034] An adjustment port 31 is provided in the positioning plate 3 corresponding to each of the support column nesting components 51, and a lower mold adjustment component 32 is configured in the adjustment port 31 through mounting grooves located on both sides of the upper end. The lower mold adjustment component 32 includes a first adjustment block 321, a first adjustment pin 322, a second adjustment block 323 and a second adjustment pin 324. Mounting protrusions are provided on both sides of the upper end of the second adjustment block 323, and the two mounting protrusions are respectively adapted to the two mounting grooves. The upper end of the second adjustment block 323 is provided with a first-level adjustment Slot 3231, the first adjustment block 321 is adapted to the first-level adjustment slot 3231, the first adjustment pin 322 passes through the first adjustment block 321, and is connected to the threaded hole on the bottom end face of the first convex support column 515, for adjusting the height of the upper end face of the first convex support column 515, the second adjustment pin 324 passes through the second adjustment block 323 and the first adjustment block 321 at the same time, and is connected to the threaded hole on the bottom end face of the outer support column 514, for adjusting the height of the upper end face of the outer support column 514.

[0035] A mirror height adjustment hole 612 is provided in the movable position plate 4 at a position corresponding to each mirror forming column 61, and a third adjustment pin 613 is arranged in each mirror height adjustment hole 612. The third adjustment pin 613 passes through the movable position plate 4 and is connected to the threaded hole on the upper end face of the mirror forming column 61, and is used to adjust the height of the mirror arc surface 611 at the lower end of the mirror forming column 61.

[0036] In summary, the specific implementation of the present invention is as follows: first, the double-layer compensation mirror is composed of a prefabricated first compensation mirror structure and a second compensation mirror structure. The lower end of the first compensation mirror structure is provided with a large-angle protrusion, and the lower end of the second compensation mirror structure is provided with a small-angle protrusion. These two structures are precisely positioned and combined in a mold to finally form an integral double-layer compensation mirror;

[0037] During the assembly process of the mold, a positioning plate 3 and a dynamic position plate 4 are installed between the bottom plate unit 1 and the top plate unit 2 to form the basic frame of the entire mold. The molding lower mold 5 is installed inside the positioning plate 3, and the molding upper mold 6 is installed inside the dynamic position plate 4. A plurality of support column nested components 51 are evenly distributed inside the molding lower mold 5. These components are composed of an outer support column 514, a first convex support column 515 and a second convex support column 516, which are used to form different support surfaces, namely a plane support surface 511, a small inclination support surface 512 and a large inclination support surface 513. Mirror molding columns 61 corresponding to the support column nested components 51 are evenly distributed inside the molding upper mold 6. The lower end face of the mirror molding column 61 is a mirror arc surface 611, which together with the support surface of the molding lower mold 5 constitutes a molding cavity of a double-layer compensation mirror.

[0038] In order to ensure the accuracy of each support surface and mirror surface, the mold is designed with a multi-level adjustment mechanism. An adjustment port 31 is provided in the positioning plate 3 corresponding to each support column nesting component 51. Each adjustment port 31 is located directly below the support column nesting component 51, and the lower mold adjustment component 32 is installed in the adjustment port 31 through the installation grooves on both sides of the upper end. The lower mold adjustment component 32 includes a first adjustment block 321, a first adjustment pin 322, a second adjustment block 323 and a second adjustment pin 324. Installation protrusions are provided on both sides of the upper end of the second adjustment block 323, which are respectively adapted to the two installation grooves. A first-stage adjustment slot 3231 is provided at the upper end of the second adjustment block 323. The first adjustment block 321 fits into the first-stage adjustment slot 3231. The first adjustment pin 322 passes through the first adjustment block 321 and is connected to the threaded hole on the bottom end surface of the first convex support column 515, thereby adjusting the height of the upper end surface of the first convex support column 515. The second adjustment pin 324 passes through both the second adjustment block 323 and the first adjustment block 321 and is connected to the threaded hole on the bottom end surface of the outer support column 514, thereby adjusting the height of the upper end surface of the outer support column 514. This multi-stage adjustment mechanism can accurately control the heights of the planar support surface 511 and the low-angle support surface 512, thereby ensuring high precision requirements during the molding process of the double-layer compensation mirror.

[0039] In addition, a mirror height adjustment hole 612 is provided inside the movable position plate 4 for each mirror forming column 61. A third adjustment pin 613 is disposed in each mirror height adjustment hole 612. The third adjustment pin 613 passes through the movable position plate 4 and is connected to the threaded hole on the upper end surface of the mirror forming column 61. The third adjustment pin 613 is used to adjust the height of the mirror arc surface 611 at the lower end of the mirror forming column 61. In this way, the height of the mirror arc surface 611 at the lower end of each mirror forming column 61 can be adjusted independently, ensuring the precise position of each mirror arc surface during the lens forming process and ensuring that the curvature and thickness of each lens meet the design requirements.

[0040] During the injection molding process, the pre-produced second compensating mirror structure is first placed on the planar support surface 511 of the lower molding die 5, ensuring that its small-angle protrusion fits on the small-angle support surface 512. Then, the pre-produced first compensating mirror structure is placed on top of the second compensating mirror structure, ensuring that its large-angle protrusion passes through the body of the second compensating mirror structure, then through the lower end of the small-angle protrusion, and finally fits on the large-angle support surface 513. In this way, the two compensating mirror structures are accurately positioned in the mold.

[0041] Next, the mold is closed, ensuring that the mirror-surface molding column 61 of the upper molding die 6 is tightly fitted with the curved mirror surface at the upper end of the first compensating mirror structure. The molten plastic material is then injected into the double-layer compensating mirror molding cavity formed by the upper molding die 6 and the lower molding die 5 via the injection molding guide 63 and the injection molding passages (the upper mold injection passage 62 and the lower mold injection passage 52). The injection molding material, under pressure, fills the entire molding cavity, ensuring that the first compensating mirror structure and the second compensating mirror structure are tightly bonded to form an integrated double-layer compensating mirror.

[0042] After the material is completely solidified, the mold is opened and the molded double-layer compensation lens is taken out. Due to the precise adjustment mechanism of the mold design, the aspheric surface and compound tilt angle of each lens can be accurately controlled, reducing the manufacturing difficulty and cost, and improving production efficiency and product quality. Through strict control of the injection molding process, the uniform filling of the material is ensured, and defects such as bubbles and material shortages are avoided, thereby improving the molding quality and appearance of the product.

[0043] The above description is only the optimal solution embodiment of the present invention and is not intended to limit the present invention. Various modifications or replacements of the present invention made by those skilled in the art without departing from the essence and protection scope of the present invention should also be within the protection scope of the present invention.

Claims

1. A double-layer compensation mirror mold, comprising a bottom plate unit (1) and a top plate unit (2), wherein a positioning plate (3) and a dynamic position plate (4) are sequentially arranged between the bottom plate unit (1) and the top plate unit (2) from bottom to top, characterized in that: The positioning plate (3) is equipped with a forming lower mold (5), and the forming lower mold (5) is evenly equipped with a plurality of support column nesting components (51), and the upper end surface of each support column nesting component (51) is sequentially provided with a plane support surface (511), a small-angle support surface (512) nested in the plane support surface (511), and a large-angle support surface (513) nested in the small-angle support surface (512), and the small-angle support surface (512) and the large-angle support surface (513) are sequentially embedded in the same inclination direction. The sleeve is provided, the height of the small-angle support surface (512) is lower than the plane support surface (511), the height of the large-angle support surface (513) is lower than the small-angle support surface (512), the upper forming die (6) is assembled in the movable position plate (4), a plurality of mirror forming columns (61) are evenly assembled in the upper forming die (6), and the mirror arc surface (611) at the lower end of the mirror forming column (61) and the plane support surface (511) together form a double-layer compensation mirror forming cavity.

2. The double-layer compensation mirror mold according to claim 1, characterized in that: The upper end surface of the molding lower mold (5) is evenly distributed with a plurality of lower mold injection passages (52) extending from the inside to the outside, and the outer end of each lower mold injection passage (52) is provided with a lower mold injection hole (53), and the support column nesting assembly (51) is arranged in the lower mold injection hole (53), and the support column nesting assembly (51) is composed of an outer support column (514), a first convex support column (515) and a second convex support column (516), wherein the first convex support column (515) is nested in the outer support column (514), and the second convex support column (516) is nested in the first convex support column (515), the upper end surface of the outer support column (514) is the planar support surface (511), the upper end surface of the first convex support column (515) is the small-angle support surface (512), and the second convex support column (516) is the large-angle support surface (513).

3. The double-layer compensation mirror mold according to claim 2, characterized in that: The lower end surface of the molding upper mold (6) is evenly distributed with a plurality of upper mold injection passages (62) extending from the inside to the outside, and each of the upper mold injection passages (62) forms an injection channel with the corresponding lower mold injection passage (52). An injection guide (63) is provided in the middle of the molding upper mold (6), and the injection guide (63) is positioned and installed by the movable plate (4) and the molding upper mold (6) at the same time, and the output port at the lower end of the injection guide (63) is connected to the gathering point of the plurality of upper mold injection passages (62).

4. The double-layer compensation mirror mold according to claim 2, characterized in that: An adjustment port (31) is provided in the positioning plate (3) corresponding to each of the support column nesting components (51), and a lower mold adjustment component (32) is configured in the adjustment port (31) through mounting grooves located on both sides of the upper end. The lower mold adjustment component (32) includes a first adjustment block (321), a first adjustment pin (322), a second adjustment block (323) and a second adjustment pin (324). Mounting protrusions are provided on both sides of the upper end of the second adjustment block (323), and the two mounting protrusions are respectively adapted to the two mounting grooves. A first adjustment is provided on the upper end of the second adjustment block (323). The first adjusting block (321) is adapted to be in the first-level adjusting slot (3231), the first adjusting pin (322) passes through the first adjusting block (321) and is connected to the threaded hole on the bottom end surface of the first convex support column (515), and is used to adjust the height of the upper end surface of the first convex support column (515), and the second adjusting pin (324) passes through the second adjusting block (323) and the first adjusting block (321) at the same time, and is connected to the threaded hole on the bottom end surface of the outer support column (514), and is used to adjust the height of the upper end surface of the outer support column (514).

5. The double-layer compensation mirror mold according to claim 1, characterized in that: A mirror height adjustment hole (612) is provided in the movable position plate (4) at a position corresponding to each mirror forming column (61), and a third adjustment pin (613) is provided in each mirror height adjustment hole (612). The third adjustment pin (613) passes through the movable position plate (4) and is connected to the threaded hole on the upper end surface of the mirror forming column (61) for adjusting the height of the mirror arc surface (611) at the lower end of the mirror forming column (61).

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