Manufacturing mold of polarized lens

Abstract

The utility model relates to the technical field of polarized lens processing, and particularly discloses a polarized lens manufacturing die which comprises a bottom frame and an upper die, the upper end of the bottom frame is fixedly connected with a lower die, and the lower end of the lower die is provided with an ejection mechanism. The ejection mechanism comprises four through holes which are formed in the inner bottom face of the lower mold in a penetrating mode and are obliquely formed, an electric push rod is installed at the upper end of the bottom frame, the output end of the electric push rod is fixedly connected with a supporting plate, and two sliding rails which are distributed front and back are formed in the upper end of the supporting plate; two T-shaped sliding blocks which are distributed left and right are connected into the two sliding rails in a sliding mode, vertical ejection force is decomposed into horizontal and vertical component force, so that stress on a lens is more uniform, the possibility of lens damage is reduced, a solution is uniformly placed into a mold cavity through cooperation of a first flow guide hole and a second flow guide hole, and the lens is prevented from being damaged due to the cooperation of the first flow guide hole and the second flow guide hole. The impact of the solution on the local part of the polarizing film in the mold cavity is reduced; and the possibility of damaging the microstructure of the polarizing film is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to polarized lens processing technical field, specifically disclose a kind of polarized lens manufacturing mould. BACKGROUND

[0002] In the field of optical lens manufacturing, polarized lens can effectively reduce glare, enhance visual comfort due to its unique polarizing performance, and is widely used in glasses, displays and optical instruments. The manufacturing mold of polarized lens as the core production equipment, its design and material selection directly affect the forming quality, optical performance and production efficiency of the lens. With the increasing demand for light and thin, high refractive index lenses in the market, developing manufacturing molds suitable for 1.67 high refractive index polarized lenses and 1.61 refractive index lenses has become the focus of technical development.

[0003] The existing polarized lens injection mold is usually composed of an upper mold, a lower mold, a cooling device and a mold closing driving mechanism. During use, the polarized film is placed inside the lower mold cavity, the upper and lower molds are closed to form a mold cavity by the mold closing driving mechanism, and then the solvent is placed inside the mold cavity to cover the polarized film to form a lens by the injection tube.

[0004] The existing injection mold usually has a vertical ejection device to eject the lens. Since the lens has strong adhesion to the mold, the vertical ejection method is prone to lens breakage. The existing injection tube is usually arranged in the middle or side of the mold. During the injection process, the local impact of the solvent on the polarized film is too large, which damages the microstructure of the polarized film and affects the quality of the lens. Therefore, a polarized lens manufacturing mold is needed to solve this problem. SUMMARY

[0005] The utility model provides a kind of polarized lens manufacturing mould, with the characteristics that by decomposing vertical ejection force into horizontal and vertical components, the lens is more uniform in stress, reducing the possibility of lens breakage, and by the cooperation of the first flow guide hole and the second flow guide hole, the solvent is uniformly placed inside the mold cavity, reducing the local impact of the solvent on the polarized film inside the mold cavity, and reducing the possibility of damage to the microstructure of the polarized film.

[0006] The utility model discloses a manufacturing mold of polarized lens, including the bottom frame and upper die, the lower die is fixedly connected with the upper end of bottom frame, the lower end of lower die is provided with the ejection mechanism, the ejection mechanism includes four inclinedly arranged through -hole of the bottom surface of the inside of lower die, the upper end of bottom frame is installed with electric push rod, the output of electric push rod is fixedly connected with the supporting plate, the upper end of supporting plate is provided with two forward and backward distribution's slide rail, two the inside of slide rail is all slidably connected with two left and right distribution's T -shaped sliding block, the upper end of four T -shaped sliding block is all fixedly connected with drive block, the upper end of four drive block is all fixedly connected with the slide rod of sliding connection with four through -hole respectively, the upper end of four slide rod is all fixedly connected with the top block, the inner wall of lower die is provided with four embedding slot corresponding with through -hole,

[0007] The upper end of the upper mold is embedded with an injection molding pipe, a plurality of first flow guide holes are formed in the bottom end of the upper mold and are in communication with the injection molding pipe, and a second flow guide hole is formed in the middle of the bottom end of the upper mold and is in communication with the injection molding pipe.

[0008] As a preferred manufacturing mold of polarized lens of the utility model, two air cylinders are symmetrically arranged on the upper end face of the lower mold, and the output ends of the two air cylinders are fixedly connected with the upper mold.

[0009] As a preferred manufacturing mold of polarized lens of the utility model, a sealing ring is arranged on the inner wall of each embedding slot, and the size of each top block is matched with the size of each embedding slot.

[0010] As a preferred manufacturing mold of polarized lens of the utility model, a rectangular sealing gasket is fixedly connected to the lower end of the upper mold, and a rectangular groove matched with the rectangular sealing gasket is formed in the upper end of the lower mold.

[0011] As a preferred manufacturing mold of polarized lens of the utility model, a nitrogenization layer is coated on the upper end of each top block.

[0012] As a preferred manufacturing mold of polarized lens of the utility model, a cavity is arranged in the middle of the lower mold, and a water inlet pipe and a drain pipe are arranged at the front end and the rear end of the lower mold respectively, and the water inlet pipe and the drain pipe are in communication with the cavity.

[0013] As a preferred manufacturing mold of polarized lens of the utility model, the first flow guide holes are arranged in a ring shape.

[0014] The utility model discloses a manufacturing mold of polarized lens, including the bottom frame and upper die, the lower die is fixedly connected with the upper end of bottom frame, the lower end of lower die is provided with the ejection mechanism, the ejection mechanism includes four inclinedly arranged through -hole of the bottom surface of the inside of lower die, the upper end of bottom frame is installed with electric push rod, the output of electric push rod is fixedly connected with the supporting plate, the upper end of supporting plate is provided with two forward and backward distribution's slide rail, two the inside of slide rail is all slidably connected with two left and right distribution's T -shaped sliding block, the upper end of four T -shaped sliding block is all fixedly connected with drive block, the upper end of four drive block is all fixedly connected with the slide rod of sliding connection with four through -hole respectively, the upper end of four slide rod is all fixedly connected with the top block, the inner wall of lower die is provided with four embedding slot corresponding with through -hole,

[0015] (1) when injection molding, the melt is placed in the inside of the injection tube, since the plurality of first flow guide holes and second flow guide holes are in communication with the injection tube, therefore, the melt entering the inside of the injection tube will be dispersed into the inside of the mold cavity, reducing the impact of the melt on the local polarizing film;

[0016] (2) when demolding, the electric push rod is started to drive the support plate to move upward, the T-shaped slider in the inside of the two slide rails will slide upward while the support plate moves upward, so that the plurality of slide rods and the top block can respectively tilt and slide in the plurality of through holes, at this time, the top block not only moves upward, but also moves horizontally;

[0017] In summary, by decomposing the vertical ejection force into horizontal and vertical components, the lens force is more uniform, reducing the possibility of lens breakage, and by the cooperation of the first flow guide hole and the second flow guide hole, the melt is uniformly placed in the inside of the mold cavity, reducing the impact of the melt on the local polarizing film in the inside of the mold cavity, and reducing the possibility of damage to the microstructure of the polarizing film. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, various elements or parts are not necessarily drawn according to the actual proportions.

[0019] Figure 1 It is a whole structure diagram of the manufacturing mold of the polarizing lens of the present application;

[0020] Figure 2 It is a sectional view of the present application;

[0021] Figure 3 It is a local structure diagram of the present application;

[0022] Figure 4 It is a front view structure diagram of the present application.

[0023] In the drawings, 1, base frame; 2, electric push rod; 3, lower mold; 4, embedded groove; 5, upper mold; 6, injection tube; 7, first flow guide hole; 8, second flow guide hole; 9, rectangular sealing gasket; 10, rectangular groove; 11, top block; 12, sealing ring; 13, slide rod; 14, driving block; 15, support plate; 16, T-shaped slider; 17, through hole; 18, air cylinder; 19, cavity; 20, water inlet pipe; 21, drain pipe. DETAILED DESCRIPTION

[0024] The utility model makes further explanation in combination with the drawings and specific embodiment, help understanding the contents of the utility model. The method used in the utility model is conventional method if no special provision, the raw materials and device used are conventional market products if no special provision.

[0025] Please refer to Figures 1-4 A manufacturing mold of polarized lens, including the base frame 1 and the upper die 5, the upper end of base frame 1 is fixedly connected with lower die 3, the lower end of lower die 3 is provided with ejection mechanism, ejection mechanism includes four inclinedly arranged through holes 17 that are opened in the bottom surface of the inside of lower die 3, the upper end of base frame 1 is installed with electric push rod 2, the output end of electric push rod 2 is fixedly connected with support plate 15, the upper end of support plate 15 is opened with two front and rear distribution slide rails, the inside of two slide rails is all slidably connected with two left and right distribution T-shaped sliding blocks 16, the upper end of four T-shaped sliding blocks 16 is all fixedly connected with driving block 14, the upper end of four driving blocks 14 is all fixedly connected with the slide rod 13 that is slidably connected with four through holes 17 respectively, the upper end of four slide rods 13 is all fixedly connected with top block 11, the inner wall of lower die 3 is opened with four embedding grooves 4 corresponding with through hole 17;

[0026] The upper end of upper die 5 is embedded with injection tube 6, the bottom end of upper die 5 is opened with a plurality of first flow guide holes 7 that are communicated with injection tube 6, the bottom end of upper die 5 is opened with second flow guide hole 8 that is communicated with injection tube 6 in the middle part.

[0027] In the embodiment: when using, first, polarized film is placed in the inside of lower die 3, then upper die 5 is combined with lower die 3, then solute is placed in the inside of injection tube 6, because a plurality of first flow guide holes 7 and second flow guide holes 8 are all communicated with injection tube 6, therefore, the solute that enters the inside of injection tube 6 will be dispersed into the inside of mold cavity, reduces the impact of solute to polarized film locally;

[0028] When demolding, first, upper die 5 is separated from lower die 3, electric push rod 2 is started to drive support plate 15 to move upwards, T-shaped sliding block 16 in the inside of two slide rails is slid and moves upwards simultaneously in the process that support plate 15 moves upwards, so that a plurality of slide rods 13 and top block 11 can be inclinedly slid in the inside of a plurality of through holes 17 respectively, at this moment, top block 11 not only moves upwards, but also moves horizontally, this process decomposes the vertical ejection force into horizontal and vertical component force, reduces the possibility of lens demolding breakage.

[0029] As a technical optimization scheme of the utility model, the upper end of lower die 3 is installed with two left and right symmetrical distribution air cylinders 18, the output end of two air cylinders 18 is all fixedly connected with upper die 5.

[0030] In the embodiment, the upper die 5 can be driven to move up and down by the two cylinders 18, so that the closing and opening states of the upper die 5 and the lower die 3 are conveniently controlled.

[0031] As a technical optimization scheme of the utility model, the inner wall of the plurality of embedding grooves 4 is equipped with a sealing ring 12, and the size of the plurality of jacks 11 is adapted to the size of the plurality of embedding grooves 4.

[0032] In the embodiment, the connection between the embedding groove 4 and the jack 11 is sealed by the sealing ring 12, and the plurality of jacks 11 is conveniently embedded in the inner wall of the plurality of embedding grooves 4 by adapting the size of the plurality of jacks 11 to the size of the plurality of embedding grooves 4.

[0033] As a technical optimization scheme of the utility model, the lower end of the upper die 5 is fixedly connected with a rectangular sealing gasket 9, and the upper end of the lower die 3 is provided with a rectangular groove 10 adapted to the rectangular sealing gasket 9.

[0034] In the embodiment, the connection between the upper die 5 and the lower die 3 is conveniently sealed by the cooperation of the rectangular sealing gasket 9 and the rectangular groove 10.

[0035] As a technical optimization scheme of the utility model, the upper end of the plurality of jacks 11 is coated with a nitriding layer.

[0036] In the embodiment, the upper end of the plurality of jacks 11 is coated with a nitriding layer, which can reduce the friction coefficient of the jack 11 to the formed lens and reduce the risk of scratching.

[0037] As a technical optimization scheme of the utility model, the middle part of the lower die 3 is provided with a cavity 19, the front end and the rear end of the lower die 3 are respectively provided with a water inlet pipe 20 and a drain pipe 21, and the water inlet pipe 20 and the drain pipe 21 are communicated with the cavity 19.

[0038] In the embodiment, the water inlet pipe 20 is connected to the water source through a hose, cold water is drained into the water inlet pipe 20, the cold water enters the cavity 19 and is discharged from the drain pipe 21, and the cold water entering the cavity 19 can cool the mold inside the mold cavity.

[0039] As a technical optimization scheme of the utility model, the plurality of first flow guide holes 7 are arranged in a ring shape.

[0040] In the embodiment, the plurality of first flow guide holes 7 are arranged in a ring shape, which increases the uniformity of the sol entering the mold cavity.

[0041] The working principle and usage process of this utility model are as follows: When in use, the polarizing film is first placed inside the lower mold 3, and then the upper mold 5 is driven to move downward by two cylinders 18 to close the upper mold 5 and the lower mold 3. Then, the melt is placed inside the injection tube 6. Since multiple first guide holes 7 and second guide holes 8 are connected to the injection tube 6, the melt entering the injection tube 6 will disperse into the mold cavity, reducing the impact of the melt on the polarizing film locally.

[0042] During this process, the water inlet pipe 20 is connected to the water source through a hose, and cold water is diverted into the water inlet pipe 20. The cold water enters the cavity 19 and is discharged from the drain pipe 21. The cold water entering the cavity 19 will cool the mold inside the mold cavity.

[0043] During demolding, the upper mold 5 is driven to move upward by two cylinders 18, opening the upper mold 5 from the lower mold 3. After the upper mold 5 and the lower mold 3 are opened, the electric push rod 2 is activated to drive the support plate 15 to move upward. During the upward movement of the support plate 15, the T-shaped sliders 16 inside the two slide rails will slide upward at the same time, so that multiple slide rods 13 and top blocks 11 can slide tilted inside multiple through holes 17 respectively. At this time, the top block 11 not only moves upward, but also moves horizontally. This process decomposes the vertical ejection force into horizontal and vertical components, reducing the possibility of lens breakage during demolding.

[0044] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0045] However, the above are merely specific embodiments of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A manufacturing mold for a polarizing lens, comprising a base frame (1) and an upper mold (5), wherein a lower mold (3) is fixedly connected to the upper end of the base frame (1), characterized in that: The lower mold (3) is provided with an ejection mechanism at its lower end. The ejection mechanism includes four inclined through holes (17) that are opened through the bottom surface of the lower mold (3). An electric push rod (2) is installed at the upper end of the base frame (1). A support plate (15) is fixedly connected to the output end of the electric push rod (2). Two slide rails distributed front and back are opened at the upper end of the support plate (15). Two T-shaped sliders (16) distributed left and right are slidably connected inside the two slide rails. A drive block (14) is fixedly connected to the upper end of each of the four T-shaped sliders (16). A slide rod (13) that is slidably connected to each of the four through holes (17) is fixedly connected to the upper end of each of the four drive blocks (14). A top block (11) is fixedly connected to the upper end of each of the four slide rods (13). Four embedding grooves (4) corresponding to the through holes (17) are opened on the inner wall of the lower mold (3). The upper end of the upper mold (5) is embedded with an injection tube (6), and the bottom end of the upper mold (5) is provided with a plurality of first guide holes (7) communicating with the injection tube (6). The middle part of the bottom end of the upper mold (5) is provided with a second guide hole (8) communicating with the injection tube (6).

2. The manufacturing mold for a polarizing lens according to claim 1, characterized in that: The upper end face of the lower mold (3) is equipped with two cylinders (18) that are symmetrically distributed on the left and right sides. The output ends of the two cylinders (18) are fixedly connected to the upper mold (5).

3. The manufacturing mold for a polarizing lens according to claim 1, characterized in that: The inner walls of the multiple embedded grooves (4) are each equipped with a sealing ring (12), and the dimensions of the multiple top blocks (11) are respectively adapted to the dimensions of the multiple embedded grooves (4).

4. The manufacturing mold for a polarizing lens according to claim 1, characterized in that: The lower end of the upper mold (5) is fixedly connected to a rectangular sealing gasket (9), and the upper end of the lower mold (3) is provided with a rectangular groove (10) that matches the rectangular sealing gasket (9).

5. The manufacturing mold for a polarizing lens according to claim 1, characterized in that: The upper ends of the plurality of top blocks (11) are coated with a nitrided layer.

6. The manufacturing mold for a polarizing lens according to claim 1, characterized in that: The lower mold (3) has a cavity (19) in the middle. The front end and rear end of the lower mold (3) are respectively provided with a water inlet pipe (20) and a drain pipe (21). The water inlet pipe (20) and the drain pipe (21) are both connected to the cavity (19).

7. The manufacturing mold for a polarizing lens according to claim 1, characterized in that: Multiple first guide holes (7) are arranged in a ring.

Images