A progressive addition lens and its processing equipment and method

Abstract

The present invention relates to the field of lens processing, specifically to a progressive lens, and also to a processing device for a progressive lens, including a processing table, a mold is provided on the processing table, a mold cavity is provided in the mold, a stamping machine is provided on the processing table, a stamping plate is provided on the stamping machine, a stacking mechanism is provided on the mold, a support assembly is provided on the stacking mechanism, a translation driving assembly is provided on the processing table, a glue spraying pipe for spraying glue is provided on the support assembly, and an ultraviolet lamp tube is provided on the inner side of the mold. Through the support of the support assembly for the photochromic resin lens, the gradient front polarizing film, the liquid crystal cell, the gradient rear polarizing film, and the transparent resin lens, a gap is left between every two adjacent materials, eliminating the need for manual glue application. Glue is automatically applied through the glue spraying pipe, reducing manual labor while ensuring the accuracy of the glue application amount, improving the processing quality, and enhancing the processing efficiency. The present invention also relates to a processing method for a progressive lens.

Description

Technical Field

[0001] The present invention relates to the field of lens processing, and in particular to a progressive addition lens, and also relates to a processing device for a progressive addition lens and a processing method for a progressive addition lens. Background Art

[0002] In the existing manufacturing industry of polarizing spectacle lenses, polarizing films with a uniform overall color depth are invariably used to manufacture spectacle lenses. This is because the use of polarizing glasses is only to block strong direct sunlight during the day and reflected light from various objects on the ground. However, at night, traditional polarizing lenses with a uniform overall color depth have too low a light transmittance, generally only 20 - 40%, and thus cannot play the role of blocking the strong light from oncoming vehicles while the wearer is driving and at the same time not affecting the clear observation of the road ahead. As a result, the wearer can only give up using traditional polarizing glasses at night. For the processing of progressive addition lenses, they are often stacked and glued manually, with low processing efficiency and the amount of glue applied cannot be controlled, resulting in inaccurate subsequent bonding.

[0003] The currently disclosed Chinese patent CN200810234853.6 relates to a production method of a gradient photochromic and electrochromic polarizing spectacle lens. The photochromic resin lens, gradient front polarizing film, liquid crystal cell, gradient rear polarizing film, and resin protection lens are sequentially placed into a glass mold. UV photosensitive glue is applied between each layer. After applying the glue, the mold is clamped and irradiated under an ultraviolet lamp for 10 - 20 minutes. After the photosensitive glue is completely cured, it is removed from the mold, and the edges are polished neatly. The finished lens is obtained after passing the inspection of qualified optical parameters, no defects, and no air bubbles. Its characteristics are as follows: 1) The production process of the photochromic resin lens is: using a color-changing monomer material, adding an initiator and a coagulant, curing in a glass mold, then evaporating an antireflection film on the front and adding a hard film. The thickness of the above-mentioned photochromic resin lens can be adjusted within the range of 0.5 - 1.5 mm, preferably 0.8 mm. 2) The production process of the gradient front and rear polarizing films is: obtained by stretching, dyeing, curing, and drying. The above-mentioned gradient front polarizing film and gradient rear polarizing film are used in combination with each other, with the same polarization direction. The thickness can be selected between 5 - 20 μm, preferably 7 - 10 μm. The above-mentioned gradient front and rear polarizing films are PVA polyvinyl alcohol film materials. 3) The production process of the above-mentioned liquid crystal cell is: filling with nematic or cholesteric liquid crystal, with a working starting voltage of 0.85 - 3V, preferably 1.05 - 1.5V. When working with an alternating voltage, the twist angle ≥ 45°, and the thickness is 1.0 - 2.2 mm, preferably 1.4 mm cell thickness. 4) The production process of the resin protection lens is: plating an antireflection film and a hard film on the outer side, and the transmittance measured with 550 nm as the central value is ≥ 95%. The thickness can be adjusted within the range of 0.5 - 1.5 mm, preferably 0.8 mm here. The above-mentioned resin protection lens is a CR-39 series resin lens or a lens made of PA, PC, PMMA materials.

[0004] According to the above patent, this patent forms a progressive addition lens by stacking various materials together. For the processing of the progressive addition lens, this patent uses a mold for production. However, before mold production, each material needs to be bonded through a transparent adhesive. In this process, manual operation increases the labor intensity and reduces the production efficiency. Therefore, there is a need for a device that can stack and apply glue to various materials. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, a processing device for progressive addition lenses is provided. In the present invention, through the support of the support component for the photochromic resin lens, gradient front polarizing film, liquid crystal cell, gradient rear polarizing film, and transparent resin lens, a gap is left between every two adjacent materials, eliminating the need for manual glue application. Glue is automatically applied through a glue spraying pipeline, reducing labor intensity while ensuring the accuracy of the glue application amount, improving the processing quality, and enhancing the processing efficiency.

[0006] To solve the problems of the prior art, the technical solution adopted by the present invention is as follows:

[0007] The present invention provides a progressive addition lens, which is applied to a processing device. The progressive addition lens is composed of a photochromic resin lens, a progressive front polarizing film, a liquid crystal cell, a progressive rear polarizing film, and a transparent resin lens. The materials are stacked in sequence and bonded and cured with each other using a transparent adhesive.

[0008] The present invention also provides a processing device for a progressive addition lens, including a processing table. A mold is provided on the processing table, and a cavity for forming the progressive addition lens is provided in the mold. A punching machine is provided above the mold on the processing table. A punching plate that fits the cavity is provided on the punching machine. A stacking mechanism for sequentially placing various materials is provided on the mold. The stacking mechanism is provided with a support assembly. There are multiple support assemblies, and the multiple support assemblies are evenly distributed around the mold. Each support assembly can move towards the direction of the mold. A translation driving assembly for driving the multiple support assemblies to move synchronously is provided on the processing table. A glue spraying pipeline for spraying glue is provided on the support assembly. An ultraviolet lamp tube is provided on the inner side of the mold.

[0009] Preferably, the support assembly is provided with a tapered tube. The tapered opening of the tapered tube extends outward, and a plurality of thin plates extend in the direction of the mold from the flared opening of the tapered tube. The plurality of thin plates are equidistantly distributed from high to low. A gap for placing materials is left between every two adjacent thin plates. An activity opening for the thin plates to pass through and enter the cavity is provided on the mold. The tapered opening of the tapered tube is communicated with the glue spraying pipeline.

[0010] Preferably, glue spraying openings communicated with the tapered tube are provided on the thin plates. The end of the thin plate facing the mold is in an open shape. Insertion openings for installing the ultraviolet lamp tubes are provided on the inner side wall of the mold. An ultraviolet lamp tube is installed between every two adjacent support assemblies.

[0011] Preferably, the translation driving assembly is provided with an outer ring, which is fixedly arranged on the processing table. The mold is located in the outer ring. A guiding opening for the glue spraying pipeline to move is provided on the outer ring. A rotating ring is provided inside the outer ring. The rotating ring is coaxial with the outer ring. A connecting rod is axially connected between each tapered tube and the rotating ring. A rotating driver for driving the rotating ring to rotate is provided on the outer ring. When the rotating ring rotates, the multiple tapered tubes are in a synchronous and same-direction moving state.

[0012] Preferably, a pressure sensor for sensing the moving degree of the tapered tube is provided on the outer ring, and the pressure sensor is connected to a glue spraying pipeline.

[0013] Preferably, the pressure sensor is provided with a spring sleeved on the glue spraying pipe. The pressure sensor is further provided with a sensing element fixedly arranged at the conical opening of the conical pipe. One end of the spring is fixedly connected to the outer ring, and the other end of the spring is fixedly connected to the sensing element. When the conical pipe moves outwards, the spring is in a compressed state.

[0014] Preferably, a jacking plate is arranged in the mold cavity of the mold. The jacking plate fits in the mold cavity and can move along its axis direction in the mold. A jacking cylinder for driving the jacking plate to move is arranged on the processing table. The jacking cylinder is fixed at the bottom of the processing table. A channel for the jacking shaft of the jacking cylinder to move is provided at the bottom of the mold.

[0015] Preferably, a plurality of suction pipes are evenly arranged along the circumferential direction of the stamping plate, and each suction pipe is provided with a connecting hose.

[0016] The present invention also provides a processing method for a progressive multifocal lens, comprising the following steps:

[0017] S1, stacking a photochromic resin lens, a gradient front polarizing film, a liquid crystal cell, a gradient rear polarizing film, and a transparent resin lens in sequence in the mold cavity of the mold, and each material is separated by a supporting component respectively. A gap for glue to be filled is left between every two adjacent materials;

[0018] S2, filling the transparent adhesive along the glue spraying port of the conical pipe into the gap between every two adjacent materials through the glue spraying pipe until the glue is filled to the specified amount;

[0019] S3, removing the supporting component from the mold, so that the photochromic resin lens, the gradient front polarizing film, the liquid crystal cell, the gradient rear polarizing film, and the transparent resin lens are stacked together in sequence, and the materials are mutually attached to each other accordingly;

[0020] S4, driving the stamping plate into the mold cavity by a stamping machine, so that the photochromic resin lens, the gradient front polarizing film, the liquid crystal cell, the gradient rear polarizing film, and the transparent resin lens are extruded together. After being extruded to the specified degree between the materials, turn on the ultraviolet lamp tube to cure the transparent adhesive to form a progressive multifocal lens;

[0021] S5, driving the jacking plate to jack up the progressive multifocal lens by the jacking cylinder. The stamping plate also moves upwards simultaneously. After the progressive multifocal lens is removed from the mold, the jacking plate returns to its original position. The progressive multifocal lens is adsorbed on the stamping plate by the suction pipe and finally taken out.

[0022] The beneficial effects of the present application compared with the prior art are:

[0023] 1. The present invention supports a photochromic resin lens, a gradient front polarizing film, a liquid crystal cell, a gradient rear polarizing film, and a transparent resin lens through a support assembly, so that there is a gap between every two adjacent materials. Without manual gluing, the glue is automatically applied through a glue spraying pipeline, reducing manual labor while ensuring the accuracy of the glue application amount, realizing the effective processing of progressive lenses, improving the processing quality, and improving the processing efficiency.

[0024] 2. Through the arrangement of multiple thin plates on the conical tube, the present invention separates multiple materials by the thin plates, maintains the gap, facilitates the injection of transparent adhesive, realizes the automatic glue injection work between various materials, reduces manual labor, and ensures that the amount of transparent adhesive is in a suitable state, thereby ensuring the processing quality of progressive lenses.

[0025] 3. Through the opening of glue spraying ports on the thin plates, the present invention enables the thin plates to have a spacing effect on various materials while also being able to inject transparent adhesive into them. Since the thickness of the thin plates is relatively thin, the injected transparent adhesive can be evenly laid on the surface of the materials, realizing the automatic fitting between various materials, ensuring that they can be effectively pressed together after fitting, and improving the forming effect. Description of the Drawings

[0026] Figure 1 is a three-dimensional structural schematic diagram of a processing device for progressive lenses;

[0027] Figure 2 is a partial three-dimensional structural sectional view of a processing device for progressive lenses;

[0028] Figure 3 is a sectional view of a processing device for progressive lenses;

[0029] Figure 4 is a partial three-dimensional structural schematic diagram of a processing device for progressive lenses;

[0030] Figure 5 is a top view of a partial three-dimensional structural schematic diagram of a processing device for progressive lenses;

[0031] Figure 6 is a section of a partial three-dimensional structural schematic diagram of a processing device for progressive lenses Figure 1 ;

[0032] Figure 7 is Figure 6 an enlarged schematic view of part A of

[0033] Figure 8 is a section of a partial three-dimensional structural schematic diagram of a processing device for progressive lenses Figure 2 ;

[0034] Figure 9 is Figure 3 An enlarged schematic view of part B;

[0035] Figure 10 is Figure 3 An enlarged schematic view of part C.

[0036] The reference numerals in the figure are:

[0037] 1 - Processing table; 11 - Photochromic resin lens; 12 - Gradient front polarizing film; 13 - Liquid crystal cell; 14 - Gradient rear polarizing film; 15 - Transparent resin lens; 16 - Lifting plate; 17 - Lifting cylinder; 2 - Mold; 3 - Stamping machine; 31 - Stamping plate; 32 - Suction pipe; 321 - Connecting hose; 4 - Stacking mechanism; 41 - Support assembly; 411 - Conical tube; 412 - Thin plate; 4121 - Glue spraying port; 42 - Translation drive assembly; 421 - Outer ring; 422 - Rotating ring; 423 - Link; 424 - Rotating driver; 5 - Glue spraying pipeline; 51 - Pressure sensor; 511 - Spring; 512 - Sensing element; 6 - Ultraviolet lamp tube. Detailed implementation manners

[0038] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0039] See Figure 7 As shown, a progressive lens is applied to a processing device. The progressive lens is composed of a photochromic resin lens 11, a gradient front polarizing film 12, a liquid crystal cell 13, a gradient rear polarizing film 14, and a transparent resin lens 15. The materials are stacked in sequence and bonded and cured with each other using a transparent adhesive.

[0040] See Figures 1 - 5 As shown, a processing device for a progressive lens includes a processing table 1. A mold 2 is provided on the processing table 1. The mold 2 has a cavity for forming a progressive lens. A stamping machine 3 is provided above the mold 2 on the processing table 1. The stamping machine 3 has a stamping plate 31 that fits the cavity. A stacking mechanism 4 for sequentially placing various materials is provided on the mold 2. The stacking mechanism 4 is provided with a support assembly 41. There are multiple support assemblies 41, and the multiple support assemblies 41 are evenly distributed around the mold 2. Each support assembly 41 can move towards the mold 2. A translation drive assembly 42 for driving the multiple support assemblies 41 to move synchronously is provided on the processing table 1. A glue spraying pipeline 5 for spraying glue is provided on the support assembly 41. An ultraviolet lamp tube 6 is provided inside the mold 2.

[0041] When processing a progressive addition lens, first, a photochromic resin lens 11, a progressive front polarizing film 12, a liquid crystal cell 13, a progressive rear polarizing film 14, and a transparent resin lens 15 are sequentially stacked in the cavity of a mold 2. When stacking, a plurality of support components 41 synchronously enter the cavity. The plurality of support components 41 are driven to move by a translation drive component 42, and each material is stacked on the plurality of support components 41, leaving a gap between every two adjacent materials. Then, a glue spraying pipe 5 sprays transparent adhesive between each gap until the specified amount is reached and then stops spraying. At this time, the translation drive component 42 drives the plurality of support components 41 to simultaneously move away from the mold 2, causing the various materials to be stacked together. Then, a stamping machine 3 is started to drive a stamping plate 31 to press down into the cavity, squeezing the plurality of materials together. After being squeezed to the specified degree, the stamping plate 31 remains stationary. At this time, an ultraviolet lamp tube 6 is turned on to cure the transparent adhesive, causing the various materials to combine to form a progressive addition lens, completing the processing of the progressive addition lens, and finally taking it out.

[0042] See Figures 4 - 7 As shown, the support component 41 is provided with a tapered tube 411. The tapered opening of the tapered tube 411 extends outward, and a plurality of thin plates 412 extend in the direction of the mold 2 from the flared opening of the tapered tube 411. The plurality of thin plates 412 are equally spaced from high to low, and a gap for placing materials is left between every two adjacent thin plates 412. An activity port for the thin plates 412 to pass through and enter the cavity is formed on the mold 2, and the tapered opening of the tapered tube 411 is communicated with the glue spraying pipe 5.

[0043] When the support component 41 supports the materials, the tapered tube 411 moves towards the mold 2. Since a plurality of thin plates 412 are provided on the tapered tube 411, the thin plates 412 enter the cavity, and a gap for placing each material is left between every two adjacent thin plates 412. The operator places each material between every two adjacent thin plates 412, and then the transparent adhesive is injected between every two adjacent materials through the glue spraying pipe 5, enabling the various materials to fit together. When the thin plates 412 leave the cavity, the plurality of materials are stacked together.

[0044] See Figures 4 - 7 As shown, the thin plate 412 is provided with a glue spraying port 4121 communicated with the tapered tube 411. The end of the thin plate 412 facing the mold 2 is open, and an insertion port for installing the ultraviolet lamp tube 6 is formed on the inner side wall of the mold 2. An ultraviolet lamp tube 6 is installed between every two adjacent support components 41.

[0045] After the thin plate 412 supports the materials, transparent adhesive is injected into the conical tube 411 through the glue spraying pipeline 5 and sprayed into the space between two adjacent materials through the glue spraying port 4121 of the thin plate 412. Injection stops until the injection volume reaches the specified state. Then, the thin plate 412 automatically exits the mold 2, and each material is extruded together by the stamping disc 31 so that each material remains in a fitting state. At this time, the ultraviolet lamp tube 6 is turned on. Since there are multiple ultraviolet lamp tubes 6 surrounding the inner wall of the mold 2, the irradiation effect on each material is good. Finally, the transparent adhesive solidifies to form a progressive focus lens, completing the processing.

[0046] See Figures 4 - 8 As shown, the translation drive assembly 42 is provided with an outer ring 421. The outer ring 421 is fixedly arranged on the processing table 1. The mold 2 is located in the outer ring 421. A guiding port for the movement of the glue spraying pipeline 5 is opened on the outer ring 421. A rotating ring 422 is arranged inside the outer ring 421. The rotating ring 422 is coaxial with the outer ring 421. A connecting rod 423 is axially connected between each conical tube 411 and the rotating ring 422. A rotating driver 424 for driving the rotation of the rotating ring 422 is arranged on the outer ring 421. When the rotating ring 422 rotates, multiple conical tubes 411 are in a synchronous and same-direction movement state.

[0047] During the startup process of the translation drive assembly 42, the rotating driver 424 drives the rotation of the rotating ring 422. Since a connecting rod 423 is connected between each conical tube 411 and the rotating ring 422, the rotation of the rotating ring 422 drives the movement of the conical tube 411. According to the rotation direction of the rotating ring 422, the movement direction of the conical tube 411 is controlled, realizing the extension and retraction of the thin plate 412 in the mold cavity.

[0048] See Figure 4 、 Figure 5 and Figure 10 As shown, a pressure sensor 51 for sensing the movement degree of the conical tube 411 is arranged on the outer ring 421. The pressure sensor 51 is connected to a glue spraying pipeline 5.

[0049] During the movement of the conical tube 411, in order to ensure that the thin plate 412 on the conical tube 411 can be completely removed from the mold cavity, the pressure of the conical tube 411 is sensed by the pressure sensor 51 to judge the degree of removal of the thin plate 412. Until the pressure sensor 51 senses the specified pressure, at this time, the thin plate 412 is in a state of being completely removed from the mold cavity and does not interfere with the extrusion between multiple materials.

[0050] See Figure 4 、 Figure 5 and Figure 10As shown, the pressure sensor 51 is provided with a spring 511. The spring 511 is sleeved on the glue spraying pipeline 5. The pressure sensor 51 is also provided with a sensing element 512. The sensing element 512 is fixedly arranged at the conical opening of the conical pipe 411. One end of the spring 511 is fixedly connected to the outer ring 421, and the other end of the spring 511 is fixedly connected to the sensing element 512. When the conical pipe 411 moves outwards, the spring 511 is in a compressed state.

[0051] When the thin plate 412 moves out of the mold cavity, the sensing element 512 on the conical pipe 411 presses the spring 511. The sensing element 512 then senses the pressure exerted by the spring 511, thereby controlling the moving distance of the conical pipe 411 and enabling the thin plate 412 to completely move out of the mold cavity.

[0052] See Figure 3 、 Figure 6 and Figure 7 As shown, a lifting disc 16 is arranged in the mold cavity of the mold 2. The lifting disc 16 fits in the mold cavity. The lifting disc 16 can move along its axis direction in the mold 2. A lifting cylinder 17 for driving the lifting disc 16 to move is arranged on the processing table 1. The lifting cylinder 17 is fixed at the bottom of the processing table 1. A channel for the lifting shaft of the lifting cylinder 17 to move is provided at the bottom of the mold 2.

[0053] After the progressive lens is processed, the stamping disc 31 moves out of the mold 2. The lifting cylinder 17 drives the lifting disc 16 to rise, so that the progressive lens is ejected out of the mold 2, facilitating the removal of the progressive lens.

[0054] See Figure 3 and Figure 9 As shown, a plurality of suction pipes 32 are evenly arranged along the circumferential direction of the stamping disc 31. A connecting hose 321 is arranged on each suction pipe 32.

[0055] When the progressive lens is moved out of the mold 2, the suction pipes 32 on the stamping disc 31 adsorb the progressive lens on its surface. By connecting a suction pump through the connecting hose 321, the suction pipes 32 have adsorption force, thus avoiding the situation that the progressive lens slips out of the mold 2 after being moved out, protecting the progressive lens and also facilitating its removal.

[0056] A processing method for a progressive lens includes the following steps:

[0057] S1, stacking the photochromic resin lens 11, the gradient front polarizing film 12, the liquid crystal cell 13, the gradient rear polarizing film 14, and the transparent resin lens 15 in sequence in the mold cavity of the mold 2, and each material is separated by a support assembly 41 respectively. A gap for glue to be filled is left between every two adjacent materials;

[0058] S2. Through the glue spraying pipeline 5, the transparent adhesive is filled into the gap between every two adjacent materials along the glue spraying port 4121 of the conical pipe 411 until the glue is filled to the specified amount;

[0059] S3. The support assembly 41 moves the mold 2 away, so that the photochromic resin lens 11, the gradient front polarizing film 12, the liquid crystal cell 13, the gradient rear polarizing film 14, and the transparent resin lens 15 are stacked together in sequence, and the various materials are adhered to each other accordingly;

[0060] S4. The punching machine 3 drives the punching plate 31 into the mold cavity, so that the photochromic resin lens 11, the gradient front polarizing film 12, the liquid crystal cell 13, the gradient rear polarizing film 14, and the transparent resin lens 15 are pressed together. After the various materials are pressed to the specified degree, the ultraviolet lamp tube 6 is turned on to cure the transparent adhesive to form a progressive focus lens;

[0061] S5. The lifting cylinder 17 drives the lifting plate 16 to lift the progressive focus lens. The punching plate 31 also moves upward at the same time. After the progressive focus lens is removed from the mold 2, the lifting plate 16 returns to its original position, and the progressive focus lens is adsorbed on the punching plate 31 by the suction pipe 32 and finally taken out.

[0062] Through the support of the support assembly 41 for the photochromic resin lens 11, the gradient front polarizing film 12, the liquid crystal cell 13, the gradient rear polarizing film 14, and the transparent resin lens 15, a gap is left between every two adjacent materials, eliminating the need for manual glue application. The glue is automatically applied through the glue spraying pipeline 5, reducing manual labor while ensuring the accuracy of the glue application amount, improving the processing quality, and enhancing the processing efficiency.

[0063] The above embodiments only represent one or several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A processing device for progressive power lenses, comprising a processing table (1), a mold (2) is provided on the processing table (1), a mold cavity for forming progressive power lenses is provided in the mold (2), a punching machine (3) is provided above the mold (2) on the processing table (1), and a punching plate (31) that fits the mold cavity is provided on the punching machine (3), characterized in that, The mold (2) is provided with a stacking mechanism (4) for sequentially placing various materials. The stacking mechanism (4) is provided with a support assembly (41). There are multiple support assemblies (41), and the multiple support assemblies (41) are evenly distributed around the mold (2). Each support assembly (41) can move towards the mold (2). The processing table (1) is provided with a translation drive assembly (42) for driving the multiple support assemblies (41) to move synchronously. The support assembly (41) is provided with a glue spraying pipe (5) for spraying glue. Inside the mold (2), there is an ultraviolet lamp tube (6). In the mold cavity of the mold (2), there is a jacking plate (16). The jacking plate (16) fits in the mold cavity and can move along its axis direction in the mold (2). The processing table (1) is provided with a jacking cylinder (17) for driving the jacking plate (16) to move. The jacking cylinder (17) is fixed at the bottom of the processing table (1). There is a channel at the bottom of the mold (2) for the jacking shaft of the jacking cylinder (17) to move through. Along the circumferential direction of the stamping plate (31), a plurality of suction pipes (32) are evenly arranged, and each suction pipe (32) is provided with a connecting hose (321).

2. The processing equipment for a progressive addition lens according to claim 1, wherein, The support assembly (41) is provided with a tapered tube (411). The tapered opening of the tapered tube (411) extends outward. A plurality of thin plates (412) extend from the flared opening of the tapered tube (411) towards the mold (2). The multiple thin plates (412) are equally spaced from high to low. A gap for placing materials is left between every two adjacent thin plates (412). The mold (2) is provided with a movable opening for the thin plates (412) to pass through and enter the mold cavity. The tapered opening of the tapered tube (411) is communicated with the glue spraying pipe (5).

3. The processing equipment for a progressive addition lens according to claim 2, characterized in that, The thin plate (412) is provided with a glue spraying opening (4121) communicated with the tapered tube (411). The end of the thin plate (412) facing the mold (2) is open. On the inner side wall of the mold (2), there is an insertion opening for installing the ultraviolet lamp tube (6). An ultraviolet lamp tube (6) is installed between every two adjacent support assemblies (41).

4. The processing equipment for a progressive addition lens according to claim 1, wherein, The translation drive assembly (42) is provided with an outer ring (421). The outer ring (421) is fixedly arranged on the processing table (1). The mold (2) is located in the outer ring (421). The outer ring (421) is provided with a guiding opening for the glue spraying pipe (5) to move. Inside the outer ring (421), there is a rotating ring (422). The rotating ring (422) is coaxial with the outer ring (421). A connecting rod (423) is axially connected between each tapered tube (411) and the rotating ring (422). The outer ring (421) is provided with a rotating driver (424) for driving the rotating ring (422) to rotate. When the rotating ring (422) rotates, the multiple tapered tubes (411) are in a synchronous and same-direction moving state.

5. The processing equipment for a progressive addition lens according to claim 1, wherein, The outer ring (421) is provided with a pressure sensor (51) for sensing the moving degree of the tapered tube (411). The pressure sensor (51) is connected to a glue spraying pipe (5).

6. The processing equipment for a progressive addition lens according to claim 5, characterized in that, The pressure sensor (51) is provided with a spring (511) sleeved on the glue spraying pipe (5). The pressure sensor (51) is further provided with a sensing element (512) fixedly arranged at the conical opening of the conical pipe (411). One end of the spring (511) is fixedly connected to the outer ring (421), and the other end of the spring (511) is fixedly connected to the sensing element (512). When the conical pipe (411) moves outwards, the spring (511) is in a compressed state.

7. The progressive addition lens processed and produced by the processing equipment for progressive addition lenses according to claim 1, which is composed of a photochromic resin lens (11), a progressive front polarizing film (12), a liquid crystal cell (13), a progressive rear polarizing film (14) and a transparent resin lens (15). The photochromic resin lens (11), the progressive front polarizing film (12), the liquid crystal cell (13), the progressive rear polarizing film (14) and the transparent resin lens (15) are stacked in sequence and bonded and cured with each other using a transparent adhesive.

8. A processing method for progressive addition lenses, applied to a processing device for progressive addition lenses according to any one of claims 3-6, characterized in that, It includes the following steps: S1. Stack the photochromic resin lens (11), the progressive front polarizing film (12), the liquid crystal cell (13), the progressive rear polarizing film (14) and the transparent resin lens (15) in sequence in the cavity of the mold (2), and each material is separated by a support assembly (41). A gap for the glue to be filled is left between every two adjacent materials. S2. Fill the transparent adhesive into the gaps between every two adjacent materials along the glue spraying port (4121) of the conical pipe (411) through the glue spraying pipe (5) until the glue is filled to the specified amount. S3. The support assembly (41) moves away from the mold (2), so that the photochromic resin lens (11), the progressive front polarizing film (12), the liquid crystal cell (13), the progressive rear polarizing film (14) and the transparent resin lens (15) are stacked together in sequence, and the materials are adhered to each other accordingly. S4. Drive the stamping plate (31) into the cavity by the stamping machine (3), so that the photochromic resin lens (11), the progressive front polarizing film (12), the liquid crystal cell (13), the progressive rear polarizing film (14) and the transparent resin lens (15) are pressed together. After the materials are pressed to the specified degree, turn on the ultraviolet lamp tube (6) to cure the transparent adhesive and form a progressive addition lens. S5. Drive the lifting plate (16) to lift the progressive addition lens by the lifting cylinder (17). The stamping plate (31) also moves upwards at the same time. After the progressive addition lens is removed from the mold (2), the lifting plate (16) returns to its original position. The progressive addition lens is adsorbed on the stamping plate (31) by the suction pipe (32) and finally taken out.

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