Lens production mold

Abstract

The utility model relates to the technical field of dies, in particular to a lens production die which comprises an upper die set, a lower die set and an outer sleeve, the outer sleeve is provided with a die cavity, the upper die set comprises an upper die base, an upper die and a guide column, the lower die set comprises a lower die base and a lower die, the lower die base is assembled in the die cavity, the upper die base is movably assembled in the die cavity, and the outer sleeve is provided with a guide hole. The guide pillar is assembled on the upper die holder and then movably arranged in the guide hole, the upper die holder is provided with a first mounting hole, the upper die is assembled in the first mounting hole, the lower die holder is provided with a second mounting hole, the lower die is assembled in the second mounting hole, the upper die is provided with an upper die cavity, the lower die is provided with a lower die cavity, and the upper die cavity and the lower die cavity are correspondingly arranged and used for die pressing to form a target lens; the upper die is installed on the upper die base, the lower die is installed on the lower die base, the upper die and the lower die are used for die pressing of the lens, the upper die and the lower die can be replaced to adapt to production work of different lenses, and flexibility is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field especially is a kind of lens production mould. BACKGROUND

[0002] As the key component of optical system, the manufacturing precision of lens directly affects the overall performance of optical equipment. Molding technology is widely used in lens manufacturing industry due to its potential to realize high-efficiency and high-precision batch production of lenses. The traditional lens molding mold is mainly composed of an upper die holder and a lower die holder, and a mold cavity is directly opened between the two for molding lens.

[0003] However, the lens molding mold in the prior art has the following disadvantages:

[0004] Additional assembly process after demolding: the lens obtained by directly molding the lens using the traditional mold needs to be separately assembled after molding, i.e. the lens is mounted on the corresponding lens holder. This process not only increases the additional production steps, but also may cause inaccurate mounting during the assembly process, resulting in poor cooperation between the lens and the holder, affecting the optical performance and service life of the final product.

[0005] Poor flexibility of the mold: in order to adapt to different types of lenses, such as lenses with different sizes, shapes and optical properties, the existing molding mold needs to replace different upper die holders and lower die holders. For example, the one-mold multi-cavity lens mold for glass molding disclosed in patent 201120265569.2 has a mold cavity directly opened in the upper die plate and the lower die plate, which means that a special mold is needed for the production of each type of lens. This not only increases the design and manufacturing cost of the mold, but also reduces the flexibility of the production line and the ability to respond to market changes.

[0006] In view of the above problems, the lens molding mold in the prior art needs to be improved in terms of production efficiency, cost control and product quality, and an innovative solution is needed to realize the integrated molding of lens and lens holder and improve the versatility of the mold and the automation level of the production process. SUMMARY

[0007] The utility model provides a kind of lens production mould to the problems of prior art, installs upper die on upper die holder, installs lower die on lower die holder, and lens is molded by upper die and lower die, and different lens production work can be adapted by replacing upper die and lower die, and higher flexibility.

[0008] In order to solve the above technical problems, the utility model discloses the following technical scheme: a lens production mould, including upper die group, lower die group and outer sleeve, the outer sleeve is set with mould cavity, the upper die group includes upper die seat, upper die and guide pillar, the lower die group includes lower die seat and lower die, the lower die seat is assembled in the mould cavity, the upper die seat is movably assembled in the mould cavity, the outer sleeve is set with guide hole, the guide pillar is movably arranged in the guide hole after being assembled in the upper die seat, the upper die seat is set with first installation hole, the upper die is assembled in the first installation hole, the lower die seat is set with second installation hole, the lower die is assembled in the second installation hole, the upper die is provided with upper die cavity, the lower die is provided with lower die cavity, the upper die cavity and lower die cavity are correspondingly arranged and are used for mould pressing to form target lens.

[0009] Preferably, the first installation hole and the second installation hole are respectively provided with two, and the upper die and the lower die are respectively provided with two.

[0010] Preferably, the upper die group further includes a limiting plate, the limiting plate is located and is set with a via hole corresponding to the first installation hole, the upper die includes a fixed part and a mould pressing part, the diameter of the fixed part is greater than the diameter of the mould pressing part, a limiting step is formed at the connection of the fixed part and the mould pressing part, the fixed part is located in the first installation hole, the mould pressing part is located in the via hole and the upper die cavity protrudes from the via hole, and the limiting step is clamped in the limiting plate.

[0011] Preferably, the upper die group further includes a first locking member, and the first locking member locks the upper die seat and the limiting plate.

[0012] Preferably, the bottom of the first installation hole is provided with a first pad, the bottom of the second installation hole is provided with a second pad, the upper die abuts against the first pad, and the lower die abuts against the second pad.

[0013] The utility model discloses the beneficial effects of:

[0014] 1. Enhance production flexibility: by simple replacement upper die and lower die, can adapt to different specifications and types of lens production, need not integral replacement mould, greatly promoted the flexibility and adaptability of production line, shortened product change type period, reduced mould cost.

[0015] 2. Improve production efficiency: the independent design of upper die and lower die makes the maintenance and replacement of mould more convenient and efficient, reduces the downtime caused by mould adjustment, thereby improving the efficiency of the whole production process.

[0016] 3. Optimize assembly quality: in the mould pressing process, the lens and the lens support can be formed synchronously or the precise installation position is reserved, the subsequent separate assembly process is reduced, the error in the assembly process is avoided, the accurate matching between the lens and the support is ensured, and the consistency and reliability of the finished product are improved.

[0017] 4. Reduce production cost: modular design reduces the need for a variety of special molds, reducing the initial investment and maintenance costs of the mold, at the same time, the simplified assembly process also reduces the waste of manpower and materials, further reduces the overall production cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The structure diagram of the utility model is shown in the figure;

[0019] Figure 2 The exploded structure diagram of the utility model is shown in the figure;

[0020] Figure 3 The cross-sectional view before the die pressing of the utility model is shown in the figure;

[0021] Figure 4 The cross-sectional view after the die pressing of the utility model is shown in the figure; Figure 3

[0022] Figure 5 The structure diagram of the lower die seat of the utility model is shown in the figure;

[0023] Figure 6 The structure diagram of the upper die seat of the utility model is shown in the figure;

[0024] Figure 7 The structure diagram of the limiting plate of the utility model is shown in the figure.

[0025] In the drawings of the utility model, Figures 1 to 7 The reference signs in the drawings include:

[0026] 1-outer sleeve, 2-cavity, 3-upper die seat, 4-upper die, 5-pilot, 6-upper die plate, 7-lower die seat, 8-lower die, 9-lower die plate, 10-guide hole, 11-first mounting hole, 12-second mounting hole, 13-upper die cavity, 14-lower die cavity, 15-limiting plate, 16-via hole, 17-first locking piece, 18-second locking piece, 19-first pad, 20-second pad. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of those skilled in the art, the utility model is further described below in combination with examples and drawings, and the content mentioned in the implementation manner is not a limitation of the utility model. The utility model is described in detail below in combination with the drawings.

[0028] The lens production mold provided in the embodiment, like Figures 1 to 7 ​, including upper die 4 group, lower die 8 group and outer sleeve 1, the outer sleeve 1 is provided with mold cavity 2, the upper die 4 group includes upper die seat 3, upper die 4 and guide column 5, the lower die 8 group includes lower die seat 7 and lower die 8, the lower die seat 7 is assembled in mold cavity 2, the upper die seat 3 is movably assembled in mold cavity 2, the outer sleeve 1 is provided with guide hole 10, the guide column 5 is movably arranged in guide hole 10 after being assembled in upper die seat 3, the upper die seat 3 is provided with first mounting hole 11, the upper die 4 is assembled in first mounting hole 11, the lower die seat 7 is provided with second mounting hole 12, the lower die 8 is assembled in second mounting hole 12, the upper die 4 is provided with upper die hole (not shown in the drawing), the lower die 8 is provided with lower die hole (not shown in the drawing), the upper die hole and the lower die hole are correspondingly arranged and used for forming target lens by molding.

[0029] Specifically, as shown in Figures 2 to 4 , the upper die 4 and the lower die 8 of the embodiment are detachably mounted on the upper die seat 3 and the lower die seat 7, so that the upper die 4 and the lower die 8 can be replaced according to different lens size requirements, without the need to set corresponding molds for different lenses, thereby improving the flexibility and adaptability of the production line, shortening the product change cycle, and reducing the mold cost. Further, the upper die hole protrudes from the first mounting hole 11, and the lower die hole also protrudes from the second mounting hole 12, so that during actual molding, the bracket can be placed in the position as shown in Figure 3 , and then the molding work is carried out, so that the lens can be molded and directly mounted on the lens bracket at the same time, that is, the accurate mounting between the lens and the lens bracket can be ensured, the damage to the lens after lens molding and assembly is reduced, the subsequent separate assembly process is reduced, the error in the assembly process is avoided, the accurate matching between the lens and the bracket is ensured, the production efficiency is effectively improved, and the production labor cost is reduced. Wherein, the fixing of the lens bracket only needs to stabilize the lens bracket on the lower die seat 7, or a corresponding fixing and positioning structure can be added in the mold cavity 2 to stably mount the lens bracket, as long as it does not affect the movement of the upper die 4 group and the lower die 8 group, which is not limited in the embodiment.

[0030] Optionally, the first mounting hole 11 and the second mounting hole 12 of the embodiment are respectively provided with two, that is, the upper die 4 and the lower die 8 are respectively provided with two, which are suitable for producing double-channel lens structures as shown in Figure 3 and Figure 4 In optical fiber communication, most of them adopt single-channel communication structure, and the double-channel lens structure formed by the embodiment can be used in double-channel communication technology of optical fiber, one channel is used for transmitting main signals, and the other channel can be used for transmitting backup signals, so as to realize high-reliability transmission of data, and also can improve the transmission speed of data.

[0031] Further, as shown in Figure 2 andFigure 4 As shown, the upper die 4 group further comprises a limiting plate 15, the limiting plate 15 is provided with a through hole 16 corresponding to the first mounting hole 11, the upper die 4 comprises a fixed part and a die part, the diameter of the fixed part is larger than that of the die part, a limiting step is formed at the connection of the fixed part and the die part, the fixed part is located in the first mounting hole 11, the die part is located in the through hole 16 and the upper die cavity protrudes from the through hole 16, and the limiting step is clamped in the limiting plate 15; the upper die 4 group further comprises a first locking member 17, which locks the upper die seat 3 and the limiting plate 15.

[0032] The specific structure of the embodiment is that the upper die 4 group comprises an upper die plate 6, an upper die seat 3 and a limiting plate 15 connected by a first locking member 17, further comprises a guide column 5 arranged on the upper die plate 6 and an upper die 4 arranged on the upper die seat 3; the lower die 8 group comprises a lower die plate 9 and a lower die seat 7 locked by a second locking member 18, further comprises a lower die 8 arranged on the lower die seat 7; after assembly, the upper die seat 3 and the lower die seat 7 are located in the die cavity 2 of the outer sleeve 1, and the two ends of the outer sleeve 1 abut against the upper die plate 6 and the lower die plate 9 respectively, wherein the first locking member 17 and the second locking member 18 are both common parts such as bolts. During work, the lower die 8 is assembled to the lower die seat 7, the lower die seat 7 is fixed with the lower die plate 9, then the lower die seat 7 is assembled to the die cavity 2 of the outer sleeve 1, in addition, the upper die 4 is installed to the upper die seat 3, the upper die plate 6, the upper die seat 3 and the limiting plate 15 are locked by the first locking member 17, the guide column 5 is assembled, the lens support is fixed in the die cavity 2, so that the position of the lens support forming the lens corresponds to the lower die cavity, at the same time, the material to be die formed is placed in the lower die cavity, then the upper die 4 group is controlled to be pressed down, the lens is formed and fixed in the lens support through the cooperation of the upper die cavity and the lower die cavity, and the lens support is taken out, then the die forming work is repeated again. Further, the first mounting hole 11 is provided with a first pad 19 at the bottom, the second mounting hole 12 is provided with a second pad 20 at the bottom, the upper die 4 abuts against the first pad 19, and the lower die 8 abuts against the second pad 20, as shown in the figure, the first pad 19 and the second pad 20 can reduce the damage to the upper die 4 and the lower die 8 during the die forming process. When different lenses need to be produced, the upper die 4 and the lower die 8 can be replaced, which is convenient and flexible to use. In fact, the upper die seat 3 and the lower die seat 7 can be provided with multiple first mounting holes 11 and second mounting holes 12, which can be suitable for die forming multiple lenses, so as to realize flexible use and lower cost. Figure 4

[0033] ​The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application is disclosed as above in the preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the disclosed technical content without departing from the technical solution of the present application, and any equivalent embodiment with equivalent changes is equivalent to the above embodiment. Any simple modification, equivalent change and modification of the above embodiment according to the present application technical solution are within the scope of the present application technical solution.

Claims

1. A lens production mold characterized by comprising: The utility model provides a mould set, including upper mould set, lower mould set and outer sleeve, the outer sleeve sets up the mould cavity, the upper mould set includes upper mould base, upper mould and guide pillar, the lower mould set includes lower mould base and lower mould, the lower mould base assembles in the mould cavity, the upper mould base swing assembly in the mould cavity, the outer sleeve sets up guide hole, the guide pillar can swing setting in guide hole after assembling in upper mould base, the upper mould base sets up first installation hole, the upper mould assembly first installation hole, the lower mould base sets up second installation hole, the lower mould assembly second installation hole, the upper mould is provided with upper mould cavity, the lower mould is provided with lower mould cavity, and the upper mould cavity is correspondingly arranged with lower mould cavity and is used to mould pressing and forms target lens.

2. The lens producing mold according to claim 1, wherein: The first installation hole and the second installation hole are respectively provided with two, and the upper mould and the lower mould are respectively provided with two.

3. The lens producing mold according to claim 1, wherein: The upper mould set further includes a limiting plate, the limiting plate is provided with a through hole corresponding to the first installation hole, the upper mould includes a fixed part and a mould pressing part, the diameter of the fixed part is larger than the diameter of the mould pressing part, a limiting step is formed at the connection between the fixed part and the mould pressing part, the fixed part is located in the first installation hole, the mould pressing part is located in the through hole and the upper mould cavity protrudes from the through hole, and the limiting step is clamped in the limiting plate.

4. The lens producing mold according to claim 3, wherein: The upper mould set further includes a first locking member, and the first locking member locks the upper mould base and the limiting plate.

5. The lens producing mold according to claim 1, wherein: The bottom of the first installation hole is provided with a first pad, the bottom of the second installation hole is provided with a second pad, the upper mould abuts against the first pad, and the lower mould abuts against the second pad.

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