Pressing tool for secondary curing of polarized lens

Abstract

The utility model discloses a pressing tool for secondary curing of a polarized lens, which comprises a bottom plate, a lens clamping component, a top plate and a servo mechanism, a plurality of upright posts are arranged on the bottom plate, and the bottom plate is connected with the top plate through the upright posts; the lens clamping assembly is arranged above the bottom plate and comprises at least two clamping blocks and an elastic element, the clamping blocks are spliced to form a clamping block with a hollow middle part, and the hollow part is a lens placing notch; elastic element placing grooves are formed in the clamping blocks, and elastic elements are arranged in the elastic element placing grooves to splice the clamping blocks; the servo mechanism is arranged above the top plate, the servo mechanism is provided with a coupler and a pressing head, one end of the pressing head is provided with an inwards-concave arc-shaped surface, and the other end of the pressing head penetrates through the top plate through the coupler to be connected with the servo mechanism. On the basis that the pressing tool limits the polarized lenses, the requirement for secondary curing of the polarized lenses of different sizes is met.

Description

Technical Field

[0001] The utility model relates to the technical field of production and processing of polarizing lenses, and specifically relates to a press tool for secondary curing of polarizing lenses. Background Technique

[0002] Polarizing lenses are optical lenses manufactured based on the principle of light polarization. They can be used to exclude and filter direct light in the light beam, enabling the light to enter the eye through the proper light transmission axis to form a visual image, thereby making the field of vision clearer and more natural. Such polarizing lenses are mostly used in the manufacture of sunglasses and camera lenses. Currently, when producing polarizing lenses, secondary curing of the polarizing lenses is required. The polarizing film used for polarizing lenses is mostly a PVA film. High refractive index lenses require a higher temperature during the secondary curing process. The film is prone to shrinkage under high temperature conditions, and the shrinkage will drive changes in the surface curvature of the polarizing lens, resulting in lens deformation and increased astigmatism. In order to place the polarizing lens in the limiting container of the press tool for secondary curing and limit it, it is usually easy to make the polarizing lens after secondary curing not easy to take out, which brings a lot of inconvenience to the picking work of the polarizing lens. At the same time, damage to the polarizing lens is extremely likely to occur during picking, and the lens will expand outward when the polarizing lens is extruded and deformed during secondary curing.

[0003] The publication number CN219686299U discloses a press tool for secondary curing of polarizing lenses, including a bottom plate and a cylinder. The upper end of the bottom plate is fixedly provided with a base, the upper end of the base is provided with an arc surface, the upper end of the bottom plate is slidably provided with an outer sleeve, the inner side of the outer sleeve is fixedly provided with an inner sleeve, the inner sleeve is provided with an annular groove, a buffer ring is clamped inside the annular groove, the left side of the outer sleeve is fixedly provided with a left anti - detachment block, the left anti - detachment block is fixedly provided with a telescopic rod, and the left and right sides of the upper end of the bottom plate are respectively fixedly provided with columns. The columns are provided with through grooves and sliding grooves. By setting the telescopic rod to fixedly connect the outer sleeve and the inner sleeve, it is convenient for the outer sleeve and the inner sleeve to automatically lift and lower. When the outer sleeve and the inner sleeve descend and are clamped on the upper end of the bottom plate, it is convenient to limit the lens on the upper end of the base. When the outer sleeve and the inner sleeve rise, it is convenient to take out the processed lens, thus achieving the work of convenient picking. Although this device can limit the lens and is convenient for taking out the lens, the base of this device is fixedly set and cannot meet the requirements for secondary curing of polarizing lenses of different sizes. Content of the Utility Model

[0004] The purpose of the utility model is to provide a press tool for secondary curing of polarizing lenses, which can meet the requirements for secondary curing of polarizing lenses of different sizes on the basis of limiting the polarizing lenses. To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model discloses a pressing tool for secondary curing of polarizing lenses, comprising: a bottom plate, a lens clamping assembly, a top plate and a servo mechanism. A plurality of columns are arranged on the bottom plate and connected to the top plate through the columns.

[0006] The lens clamping assembly is arranged above the bottom plate and comprises: a clamping block group and an elastic element. There are at least two clamping block groups, which are spliced to form a clamping block with a hollow middle part. The hollow part is a lens placement notch. And an elastic element placement groove is arranged inside the clamping block group, and the elastic element is arranged in the elastic element placement groove to splice the clamping block group.

[0007] The servo mechanism is arranged above the top plate, and the servo mechanism is provided with a coupling and a pressing head. One end of the pressing head is provided with an inwardly concave arc surface, and the other end of the pressing head passes through the top plate through the coupling and is connected to the servo mechanism.

[0008] Furthermore, the clamping block group is provided with an extension part on one side, and a straight notch is arranged on the extension part. The clamping block group is sleeved on the column on one side thereof through the straight notch, so that the clamping block group can move along the direction of the column.

[0009] Wherein, the clamping block group is provided with a groove on the upper surface on one side of the lens placement notch, which is convenient for expanding the clamping block group.

[0010] Furthermore, a protective pad is arranged on one side of the clamping block group at the lens placement notch.

[0011] Preferably, the protective pad is a sponge pad or a rubber pad.

[0012] Furthermore, a buffer pad is arranged between the clamping assembly and the bottom plate.

[0013] Preferably, the buffer pad is a rubber pad or a sponge pad.

[0014] Furthermore, the end of the coupling connected to the pressing head is provided with an external thread, and the end of the pressing head connected to the coupling is provided with an internal thread corresponding to the external thread. The coupling and the pressing head are threadedly connected through the external thread and the internal thread.

[0015] Preferably, the elastic element is a spring ring or a rubber ring.

[0016] Preferably, the servo mechanism is a motor or a pneumatic motor.

[0017] After adopting the above technical solution, the utility model has the following effects:

[0018] 1. The utility model can limit the polarizing lens above the bottom plate under the action of the clamping block and the elastic element in the lens clamping assembly. At the same time, by matching with the replaceable pressing head of different sizes, the requirements for the secondary curing of polarizing lenses of different sizes can be met.

[0019] 2. The utility model is provided with a buffer pad between the bottom plate and the lens clamping assembly, which can better protect the polarizing lens when the pressing head applies pressure to the polarizing lens, and avoid damage to the lens during the secondary curing process.

[0020] 3. The upright post on the bottom plate of the utility model is detachably connected to the top plate. For polarizing lenses that exceed the size range that the lens clamping assembly can adapt to, the requirements for the secondary curing of polarizing lenses of different sizes can be further met by replacing the lens clamping assembly of different sizes. Description of the Drawings

[0021] Figure 1 It is a three-dimensional structure diagram of the utility model.

[0022] Figure 2 It is a three-dimensional structure diagram of the utility model with a polarizing lens mounted.

[0023] Figure 3 It is an exploded view of the pressing head of the utility model.

[0024] Main Component Symbols:

[0025] 1: Bottom plate, 2: Buffer pad, 3: Lens clamping assembly, 31: Clamping block, 32: Lens placement notch, 33: Extension part, 34: Straight notch, 35: Elastic element, 36: Groove, 4: Upright post, 5: Top plate, 6: Servo mechanism, 7: Coupling, 71: External thread, 8: Pressing head, 81: Arc surface, 82: Internal thread, 9: Polarizing lens. Detailed Embodiment

[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the following further details the utility model in conjunction with the drawings and embodiments.

[0027] As Figure 1 and Figure 2 shown, the utility model discloses a pressing tool for the secondary curing of polarizing lenses, including: a bottom plate 1, a lens clamping assembly 3, a top plate 5 and a servo mechanism 6. A plurality of upright posts 4 are arranged on the bottom plate 1, and the bottom plate 1 is connected to the top plate 5 through the upright posts 4.

[0028] The lens clamping assembly 3 is arranged above the base plate 1, and includes: a clamping block 31 and an elastic element 35. The clamping block 31 is provided with at least two clamping blocks that are spliced together to form a clamping block with a hollow middle portion, and the hollow portion is a lens placement groove 32; and an elastic element placement groove is provided inside the clamping block 31, and the elastic element 35 is provided in the elastic element placement groove to splice the clamping blocks 31.

[0029] In this embodiment, the base plate 1 is provided with four upright posts 4 at its four corners, and the top plate 5 is detachably connected to the upright posts 4. Furthermore, the clamping assembly 3 comprises four clamping blocks 31, each of which has an arc-shaped elastic element placement slot. The four clamping blocks 31 are joined together by elastic elements 35 in the elastic element placement slots. The elastic elements 35 are spring coils or rubber rings.

[0030] Secondly, the clamping block 31 is provided with an extension 33 on one side, and a straight slot 34 is provided on the extension 33. The clamping block 31 is mounted on the column 4 on one side through the straight slot 34, allowing the clamping block 31 to move along the column 4. In addition, a buffer pad 2 is provided between the clamping assembly 3 and the base plate 1. The buffer pad 2 is a rubber pad or a sponge pad.

[0031] Furthermore, in this embodiment, the clamping block 31 has a groove 36 on its upper surface on one side of the lens placement notch 2. This facilitates opening the clamping block 31, allowing the placement of the uncured polarized lens 9 in the lens placement notch 32 and the removal of the polarized lens 9 after curing. Furthermore, the clamping block 31 has a protective pad (not shown) on one side of the lens placement notch 32. The pad is constructed of sponge or rubber.

[0032] The servo mechanism 6 is arranged above the top plate 5, and the servo mechanism 6 is provided with a coupling 7 and a pressure head 8. One end of the pressure head 8 is provided with an inwardly concave arc surface 81, and the curvature of the arc surface 81 is the same as the curvature of the polarized lens 9 undergoing secondary curing, and the other end of the pressure head 8 is connected to the servo mechanism 6 through the top plate 5 via the coupling 7.

[0033] like Figure 3 As shown, in this embodiment, the coupling 7 is provided with an external thread 71 at one end connected to the pressure head 8, and the pressure head 8 is provided with an internal thread 82 corresponding to the external thread 71 at one end connected to the coupling 7. The coupling 7 and the pressure head 8 are threadedly connected through the external thread 71 and the internal thread 82.

[0034] In addition, in this embodiment, the servo mechanism 6 is a motor. In other embodiments, the servo mechanism 6 may be a pneumatic motor.

[0035] The above are only the preferred specific embodiments of the present utility model. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A pressing tool for secondary curing of polarizing lenses, characterized in that, Comprising: A bottom plate (1), a lens clamping assembly (3), a top plate (5) and a servo mechanism (6). A plurality of columns (4) are provided on the bottom plate (1), and the bottom plate (1) is connected to the top plate (5) through the columns (4); The lens clamping assembly (3) is arranged above the bottom plate (1) and includes a clamping block group (31) and an elastic element (35). At least two clamping block groups (31) are provided and are spliced to form a clamping block with a hollow middle part. The hollow part is a lens placement notch (32); and an elastic element placement groove is provided inside the clamping block group (31), and the elastic element (35) is arranged in the elastic element placement groove to splice the clamping block groups (31); The servo mechanism (6) is arranged above the top plate (5), and the servo mechanism (6) is provided with a coupling (7) and a pressing head (8). One end of the pressing head (8) is provided with an inwardly concave arc surface (81), and the other end of the pressing head (8) passes through the top plate (5) through the coupling (7) and is connected to the servo mechanism (6).

2. The press tool for secondary curing of a polarizing lens according to claim 1, characterized in that: One side of the clamping block group (31) is provided with an extension part (33), and a straight notch (34) is provided on the extension part (33). The clamping block group (31) is sleeved on a column (4) on one side thereof through the straight notch (34), so that the clamping block group (31) can move along the direction of the column (4).

3. The press tool for secondary curing of a polarizing lens according to claim 2, characterized in that: A groove (36) is provided on the upper surface of the clamping block group (31) on one side of the lens placement notch (32) to facilitate expanding the clamping block group (31).

4. The press tool for secondary curing of a polarizing lens according to claim 2, characterized in that: A protective pad is provided on one side of the clamping block group (31) at the lens placement notch (32).

5. The pressing tool for secondary curing of a polarizing lens according to claim 4, characterized in that: The protective pad is a sponge pad or a rubber pad.

6. The press tool for secondary curing of a polarizing lens according to claim 1, characterized in that: A buffer pad (2) is provided between the clamping assembly (3) and the bottom plate (1).

7. The pressing tool for secondary curing of a polarizing lens according to claim 6, characterized in that: The buffer pad (2) is a rubber pad or a sponge pad.

8. The press tool for secondary curing of a polarizing lens according to claim 1, wherein: The coupling (7) is provided with an external thread (71) at the end connected to the pressing head (8), and the pressing head (8) is provided with an internal thread (82) corresponding to the external thread (71) at the end connected to the coupling (7). The coupling (7) and the pressing head (8) are threadedly connected through the external thread (71) and the internal thread (82).

9. The press tool for secondary curing of a polarizing lens according to claim 1, characterized in that: The elastic element (35) is a spring coil or a rubber ring.

10. A pressing tool for secondary curing of a polarizing lens according to any one of claims 1-9, characterized in that: The servo mechanism (6) is a motor or a pneumatic motor.

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