Aspheric lens compression molding manufacturing process

Abstract

The invention relates to the technical field of aspheric glass forming, in particular to an aspheric lens compression molding manufacturing process, which comprises the following steps of: putting a lens to be subjected to compression molding into a forming mold, conveying the forming mold into a preheating station through a manipulator, and heating to 610-650 DEG C from normal temperature; the heated forming mold is conveyed into a mold pressing machine through a mechanical arm, and the forming temperature of the mold pressing machine is 670-690 DEG C; the formed forming mold is conveyed into a slow cooling station through a mechanical arm to be cooled, and the temperature of the forming mold is reduced to 300 DEG C from the temperature of a mold press; and the slowly-cooled forming die is conveyed to a water cooling station through a mechanical arm to be cooled to 40 DEG C or below, and finally the forming die is discharged, demoulded and taken out of the aspherical lens. The multi-station mold pressing production line has the beneficial effects that single-station mold pressing production is converted into multi-station mold pressing production, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of aspheric glass molding, in particular to a molding manufacturing process for an aspheric lens. Background Art

[0002] Existing aspheric lenses are mainly molded by single-station molding machines and multi-station molding machines. Single-station molding machines have high molding precision and good quality, but low production efficiency, resulting in high production costs; multi-station molding machines have low molding costs and high production efficiency, but low precision and difficult quality control, making it difficult to produce high-precision and high-quality aspheric lenses.

[0003] Therefore, it is necessary to carry out further technical innovation on the production process of multi-station molding machines. Summary of the invention

[0004] The purpose of the present invention is to provide a high-efficiency, high-precision, high-quality aspheric lens molding manufacturing process in view of the defects and shortcomings of the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: comprising the following steps: a. placing the lens to be molded into the molding mold, and sending the molding mold to the preheating station for heating by a robot, the temperature is heated from room temperature to 610℃-650℃, and the pressure is increased from 0 Mpa to 0.05 Mpa; b. sending the heated molding mold to a molding machine by a robot, and molding it under a vacuum state, the molding temperature of the molding machine is 670℃-690℃; the pressure is increased from 0 Mpa to 0.3Mpa; c. sending the molded molding mold to a slow cooling station for cooling by a robot, and the temperature of the molding mold is reduced to 300℃ from the temperature coming out of the molding machine; d. sending the molded molding mold after slow cooling to a water cooling station by a robot to cool it to below 40℃, and finally discharging and demolding the aspheric lens.

[0006] Further, the preheating station of step a is composed of five preheating stations, and step a is specifically as follows: the molding mold is sent to the first-level preheating station for heating by a manipulator, and the temperature is heated from room temperature to 450°C, the pressure is 0 Mpa, and the residence time is t1; the molding mold is sent from the first-level preheating station to the second-level preheating station for heating by a manipulator, and the temperature rises by 40°C-50°C, the pressure is 0 Mpa, and the residence time is t1; the molding mold is sent from the second-level preheating station to the third-level preheating station for heating by a manipulator, and the temperature rises by 40°C-50°C, the pressure is 0 Mpa, and the residence time is t1; the molding mold is sent from the third-level preheating station to the fourth-level preheating station for heating by a manipulator, and the temperature rises by 40°C-50°C, the pressure is 0 Mpa, and the residence time is t1; the molding mold is sent from the fourth-level preheating station to the fifth-level preheating station for heating by a manipulator, and the temperature rises by 40°C-50°C, and the pressure rises from 0 Mpa to 0.05 Mpa, residence time is t1.

[0007] Further, step a is specifically as follows: the molding mold is sent to the first-level preheating station for heating by a manipulator, the temperature is heated from room temperature to 450°C, the pressure is 0 Mpa, and the residence time is t1; the molding mold is sent from the first-level preheating station to the second-level preheating station for heating by a manipulator, the temperature rise is 40°C, the pressure is 0 Mpa, and the residence time is t1; the molding mold is sent from the second-level preheating station to the third-level preheating station for heating by a manipulator, the temperature rise is 40°C, the pressure is 0 Mpa, and the residence time is t1; the molding mold is sent from the third-level preheating station to the fourth-level preheating station for heating by a manipulator, the temperature rise is 40°C, the pressure is 0 Mpa, and the residence time is t1; the molding mold is sent from the fourth-level preheating station to the fifth-level preheating station for heating by a manipulator, the temperature rise is 40°C, the pressure rises from 0 Mpa to 0.05 Mpa, and the residence time is t1.

[0008] Further, step a is specifically as follows: the molding mold is sent to the first-level preheating station for heating by a manipulator, the temperature is heated from room temperature to 450°C, the pressure is 0 Mpa, and the residence time is t1; the molding mold is sent from the first-level preheating station to the second-level preheating station for heating by a manipulator, the temperature rise is 46°C, the pressure is 0 Mpa, and the residence time is t1; the molding mold is sent from the second-level preheating station to the third-level preheating station for heating by a manipulator, the temperature rise is 46°C, the pressure is 0 Mpa, and the residence time is t1; the molding mold is sent from the third-level preheating station to the fourth-level preheating station for heating by a manipulator, the temperature rise is 46°C, the pressure is 0 Mpa, and the residence time is t1; the molding mold is sent from the fourth-level preheating station to the fifth-level preheating station for heating by a manipulator, the temperature rise is 46°C, the pressure rises from 0 Mpa to 0.05 Mpa, and the residence time is t1.

[0009] Further, step a is specifically as follows: the molding mold is sent to the first-level preheating station for heating by a manipulator, the temperature is heated from room temperature to 450°C, the pressure is 0 Mpa, and the residence time is t1; the molding mold is sent from the first-level preheating station to the second-level preheating station for heating by a manipulator, the temperature rise is 50°C, the pressure is 0 Mpa, and the residence time is t1; the molding mold is sent from the second-level preheating station to the third-level preheating station for heating by a manipulator, the temperature rise is 50°C, the pressure is 0 Mpa, and the residence time is t1; the molding mold is sent from the third-level preheating station to the fourth-level preheating station for heating by a manipulator, the temperature rise is 50°C, the pressure is 0 Mpa, and the residence time is t1; the molding mold is sent from the fourth-level preheating station to the fifth-level preheating station for heating by a manipulator, the temperature rise is 50°C, the pressure rises from 0 Mpa to 0.05 Mpa, and the residence time is t1.

[0010] Furthermore, the molding temperature of the molding machine in step b is 680°C.

[0011] Furthermore, the slow cooling station of step c is composed of four slow cooling stations, and step c is specifically as follows: the molding mold after compression molding is sent from the molding machine to the first slow cooling station by a manipulator, the temperature is reduced to 630°C, the pressure is increased from 0 Mpa to 0.1 Mpa, and the residence time is t1; the molding mold is sent from the first slow cooling station to the second slow cooling station by a manipulator, the temperature is reduced to 550°C, the pressure is increased from 0 Mpa to 0.1 Mpa, and the residence time is t1; the molding mold is sent from the second slow cooling station to the third slow cooling station by a manipulator, the temperature is reduced to 450°C, the pressure is increased from 0 Mpa to 0.05 Mpa, and the residence time is t1; the molding mold is sent from the third slow cooling station to the fourth slow cooling station by a manipulator, the temperature is reduced to 300°C, the pressure is increased from 0 Mpa to 0.05 Mpa, and the residence time is t1.

[0012] Furthermore, the water cooling station of step d is composed of three water cooling stations, and step d is specifically as follows: the molding mold is sent from the five-stage slow cooling station to the first-stage water cooling station by a manipulator, the temperature is reduced to 200°C, the pressure is 0 Mpa, and the residence time is t1; the molding mold is sent from the first-stage water cooling station to the second-stage water cooling station by a manipulator, the temperature is reduced to 100°C, the pressure is 0 Mpa, and the residence time is t1; the molding mold is sent from the second-stage water cooling station to the third-stage water cooling station by a manipulator, the temperature is reduced to below 40°C, the pressure is 0 Mpa, and the residence time is t1.

[0013] Furthermore, the t1 is 150-160 seconds.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the molding mold of the lens to be molded is preheated in a preheating station and then molded, and then the lens is discharged and taken out after being cooled in a slow cooling and water cooling station, thereby realizing the transformation from single-station to multi-station molding production, greatly improving production efficiency, and at the same time being able to ensure the surface quality during the molding process, ensure the aspheric surface accuracy and surface roughness accuracy, and greatly reduce production costs; this method is suitable for small-scale production in the experimental or trial production stage, and is also convenient for large-scale batch production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Is a flowchart of the present invention; DETAILED DESCRIPTION

[0016] like Figure 1 As shown, the present invention is described in detail below in conjunction with specific embodiments. The following embodiments and descriptions are only used to explain the present invention, but are not intended to limit the present invention.

[0017] The present invention discloses a non-spherical lens compression molding manufacturing process, comprising the following steps: a. placing a lens to be compression molded into a molding mold, and sending the molding mold to a preheating station for heating by a robot, wherein the temperature is heated from room temperature to 610°C-650°C, and the pressure is increased from 0 MPa to 0.05 MPa; b. sending the heated molding mold to a molding machine by a robot, and molding under a vacuum state, wherein the molding temperature of the molding machine is 670°C-690°C, and the pressure is increased from 0 MPa to 0.3 MPa; c. sending the molded molding mold to a slow cooling station for cooling by a robot, wherein the temperature of the molding mold is reduced from the temperature coming out of the molding machine to 300°C; d. sending the molded molding mold to a water cooling station for cooling to below 40°C by a robot, and finally discharging and demolding the non-spherical lens.

[0018] As a preferred embodiment of the present invention, the preheating station of step a is composed of five preheating stations, and step a is specifically as follows: the molding mold is sent to the first-level preheating station for heating by a manipulator, and the temperature is heated from room temperature to 450°C, the pressure is 0Mpa, and the residence time is t1; the molding mold is sent from the first-level preheating station to the second-level preheating station for heating by a manipulator, and the temperature rises by 40°C-50°C, the pressure is 0Mpa, and the residence time is t1; the molding mold is sent from the second-level preheating station to the third-level preheating station for heating by a manipulator, and the temperature rises by 40°C-50°C, the pressure is 0Mpa, and the residence time is t1; the molding mold is sent from the third-level preheating station to the fourth-level preheating station for heating by a manipulator, and the temperature rises by 40°C-50°C, the pressure is 0Mpa, and the residence time is t1; the molding mold is sent from the fourth-level preheating station to the fifth-level preheating station for heating by a manipulator, and the temperature rises by 40°C-50°C, and the pressure rises from 0Mpa to 0.05 Mpa, residence time is t1.

[0019] As a preferred embodiment of the present invention, step a is specifically: sending the molding mold to the first-level preheating station for heating by a manipulator, the temperature is heated from room temperature to 450°C, the pressure is 0 Mpa, and the residence time is t1; sending the molding mold from the first-level preheating station to the second-level preheating station for heating by a manipulator, the temperature rise is 40°C (that is, the temperature is heated from 450°C to 490°C), the pressure is 0 Mpa, and the residence time is t1; sending the molding mold from the second-level preheating station to the third-level preheating station for heating by a manipulator, the temperature rise is 40°C (that is, the temperature is heated from 490°C to 530°C), the pressure is 0 Mpa, and the residence time is t1; sending the molding mold from the third-level preheating station to the fourth-level preheating station for heating by a manipulator, the temperature rise is 40°C (that is, the temperature is heated from 530°C to 570°C), the pressure is 0 Mpa, the residence time is t1; the molding mold is sent from the fourth-level preheating station to the fifth-level preheating station for heating by a robot, the temperature rises by 40°C (that is, the temperature is heated from 570°C to 610°C), the pressure rises from 0Mpa to 0.05Mpa, and the residence time is t1.

[0020] As a preferred embodiment of the present invention, step a is specifically: sending the molding mold to the first-level preheating station for heating by a manipulator, the temperature is heated from room temperature to 450°C, the pressure is 0 Mpa, and the residence time is t1; sending the molding mold from the first-level preheating station to the second-level preheating station for heating by a manipulator, the temperature rise is 46°C (that is, the temperature is heated from 450°C to 496°C), the pressure is 0 Mpa, and the residence time is t1; sending the molding mold from the second-level preheating station to the third-level preheating station for heating by a manipulator, the temperature rise is 46°C (that is, the temperature is heated from 496°C to 542°C), the pressure is 0 Mpa, and the residence time is t1; sending the molding mold from the third-level preheating station to the fourth-level preheating station for heating by a manipulator, the temperature rise is 46°C (that is, the temperature is heated from 542°C to 588°C), the pressure is 0 Mpa, the residence time is t1; the molding mold is sent from the fourth-level preheating station to the fifth-level preheating station for heating by a robot, the temperature rises by 46°C (that is, the temperature is heated from 588°C to 634°C), the pressure rises from 0Mpa to 0.05Mpa, and the residence time is t1.

[0021] As a preferred embodiment of the present invention, step a is specifically as follows: the molding mold is sent to the first-level preheating station for heating by a manipulator, the temperature is heated from room temperature to 450°C, the pressure is 0 Mpa, and the residence time is t1; the molding mold is sent from the first-level preheating station to the second-level preheating station for heating by a manipulator, the temperature is increased by 50°C (that is, the temperature is heated from 450°C to 500°C), the pressure is 0 Mpa, and the residence time is t1; the molding mold is sent from the second-level preheating station to the third-level preheating station for heating by a manipulator, the temperature is increased by 50°C (that is, the temperature is heated from 500°C to 550°C), the pressure is 0 Mpa, and the residence time is t1; the molding mold is sent from the third-level preheating station to the fourth-level preheating station for heating by a manipulator, the temperature is increased by 50°C (that is, the temperature is heated from 550°C to 600°C), the pressure is 0 Mpa, the residence time is t1; the molding mold is sent from the fourth-level preheating station to the fifth-level preheating station for heating by a robot, the temperature rises by 50°C (that is, the temperature is heated from 600°C to 650°C), the pressure rises from 0Mpa to 0.05Mpa, and the residence time is t1.

[0022] Heating is performed separately through five heating stations, and the preheating function originally in the molding machine is separated and separated. The purpose of setting the heating of the first-level heating station from room temperature to 450°C is to allow the workpiece to heat up quickly and lay the foundation for the stability of subsequent stable heating, so as to avoid cracks in aspheric lenses; the pressure of the first, second, third and fourth heating stations is 0 Mpa to avoid crushing aspheric lenses; the pressure of the fifth heating station is 0.05 Mpa, which is a pre-pressing setting, in order to shorten the molding time and reduce the pressure during molding, improve product quality, avoid pits and cracks, and also help to improve the concentricity of the lens. The present invention preferably adopts a consistent increase in each stage, and the uniformity of the temperature increase can ensure the quality of the product, and is also conducive to improving the concentricity of the lens.

[0023] As a preferred embodiment of the present invention, the molding temperature of the molding machine in step b is any one of 670°C, 680°C and 690°C; the molding temperature of the molding machine in step b is preferably 680°C.

[0024] As a preferred embodiment of the present invention, the slow cooling station of step c is composed of four slow cooling stations, and step c is specifically as follows: the molding mold after compression molding is sent from the molding machine to the first slow cooling station by a manipulator, the temperature is reduced to 630°C, the pressure is increased from 0Mpa to 0.1Mpa, and the residence time is t1; the small cooling amplitude of the first slow cooling is to prevent the aspheric lens from bursting or cracking during the cooling process, and the pressure of 0.1Mpa can not only prevent bursting or cracking, but also contribute to the subsequent cooling speed and the stability of the quality of the aspheric lens. The molding mold is sent from the first slow cooling station to the second slow cooling station by a manipulator, the temperature is reduced to 550°C, the pressure is increased from 0Mpa to 0.1Mpa, and the residence time is t1; the pressure of 0.1Mpa is maintained to accelerate the cooling and the stability of the quality of the aspheric lens. The forming mold is sent from the secondary slow cooling station to the tertiary slow cooling station by a robot, the temperature is reduced to 450℃, the pressure is increased from 0 Mpa to 0.05 Mpa, and the dwell time is t1; the pressure of 0.05 Mpa is maintained to accelerate the cooling and the stability of the quality of the aspheric lens. The forming mold is sent from the tertiary slow cooling station to the tertiary slow cooling station by a robot, the temperature is reduced to 300℃, the pressure is increased from 0 Mpa to 0.05 Mpa, and the dwell time is t1; the pressure of 0.05 Mpa is maintained to accelerate the cooling and the stability of the quality of the aspheric lens. Setting the pressure at each slow cooling station is particularly beneficial to improve the concentricity of the lens and avoid cracks.

[0025] As a preferred embodiment of the present invention, the water cooling station of step d is composed of three water cooling stations, and step d is specifically as follows: the forming mold is sent from the five-stage slow cooling station to the first-stage water cooling station by a manipulator, the temperature is reduced to 200°C, the pressure is 0 Mpa, and the residence time is t1; the forming mold is sent from the first-stage water cooling station to the second-stage water cooling station by a manipulator, the temperature is reduced to 100°C, the pressure is 0 Mpa, and the residence time is t1; the forming mold is sent from the second-stage water cooling station to the third-stage water cooling station by a manipulator, the temperature is reduced to below 40°C, the pressure is 0 Mpa, and the residence time is t1. The purpose of slowing down the cooling speed of the three water cooling stations is to ensure that cracks do not appear on the aspheric lens.

[0026] As a preferred embodiment of the present invention, the t1 is 150-160 seconds.

[0027] As a preferred embodiment of the present invention, the t1 is any one of 150 seconds, 155 seconds or 160 seconds; the t1 of the present invention is preferably 155 seconds.

[0028] The structures of the preheating station and the slow cooling station are the same, both of which include an upper heating plate and a lower heating plate. The upper heating plate is driven downward by the cylinder of the preheating station (or slow cooling station), and the forming mold on the lower heating plate is pressed and heated, thereby realizing the heat transfer phenomenon (heating or cooling effect) of the preheating station (or slow cooling station) to the forming mold.

[0029] The water cooling station includes an upper cooling plate and a lower cooling plate; circulating coolant or cooling gas is introduced into the upper cooling plate and the lower cooling plate to cool the upper cooling plate and the lower cooling plate. The cylinder of the water cooling station drives the upper cooling plate downward, and the upper cooling plate presses the mold against the lower cooling plate to cool the molding mold.

[0030] The molding machine and forming mold used in the present invention are essentially the same as those in the prior art, so they will not be described in detail here.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting up five preheating stations for heating and then performing vacuum compression molding, followed by seven-stage cooling, the single-station type is transformed into a multi-station type compression production, which greatly improves production efficiency and greatly reduces production costs.

[0032] This process can ensure the surface quality during the molding process, avoid pits and cracks, and help improve the concentricity of the lens; it ensures the accuracy of the aspheric surface and the surface roughness. The method is suitable for small-scale production in the experimental or trial production stage, and is also convenient for large-scale batch production.

[0033] The above are preferred embodiments of the present invention, and those skilled in the art can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the above specific embodiments, and any obvious improvements, replacements or modifications made by those skilled in the art on the basis of the present invention belong to the protection scope of the present invention.

Claims

1. A process for manufacturing aspheric lens by compression molding, characterized in that: The steps include: (a) Place the lens to be molded into the molding mold, and send the molding mold to the preheating station for heating by a robot. The temperature is heated from room temperature to 610°C-650°C, and the pressure is increased from 0Mpa to 0.05Mpa; (b) The heated molding die is sent to a molding machine by a manipulator and molded under vacuum. The molding temperature of the molding machine is 670°C-690°C, and the pressure rises from 0Mpa to 0.3Mpa; (c) The mold is sent to the slow cooling station by the manipulator to cool down. The temperature of the mold is reduced to 300°C from the temperature of the molding machine. (d) The slowly cooled molding mold is sent to a water cooling station by a robot to be cooled to below 40°C, and finally discharged and demolded to remove the aspheric lens.

2. The aspheric lens molding manufacturing process according to claim 1, characterized in that: The preheating station of step (a) is composed of five preheating stations, and step (a) is specifically as follows: The forming mold is sent to the first-level preheating station for heating by a robot, and the temperature is heated from room temperature to 450°C, the pressure is 0Mpa, and the residence time is t1; The forming mold is sent from the primary preheating station to the secondary preheating station for heating by a manipulator, with a temperature increase of 40℃-50℃, a pressure of 0Mpa, and a residence time of t1; The forming mold is sent from the secondary preheating station to the tertiary preheating station for heating by a manipulator, with a temperature increase of 40℃-50℃, a pressure of 0 Mpa, and a residence time of t1; The forming mold is sent from the third-level preheating station to the fourth-level preheating station for heating by a manipulator, with a temperature increase of 40℃-50℃, a pressure of 0 MPa, and a residence time of t1; The forming mold is sent from the fourth-level preheating station to the fifth-level preheating station for heating by a robot. The temperature rises by 40℃-50℃, the pressure rises from 0 MPa to 0.05 MPa, and the residence time is t1.

3. The aspheric lens molding manufacturing process according to claim 2, characterized in that: Step (a) is specifically as follows: the forming mold is sent to the primary preheating station by a robot for heating, the temperature is heated from room temperature to 450°C, the pressure is 0 MPa, and the residence time is t1; The forming mold is sent from the primary preheating station to the secondary preheating station by a manipulator for heating, with a temperature increase of 40°C, a pressure of 0 MPa, and a residence time of t1; The forming mold is sent from the secondary preheating station to the tertiary preheating station by a manipulator for heating, with a temperature increase of 40°C, a pressure of 0 MPa, and a residence time of t1; The forming mold is sent from the third-level preheating station to the fourth-level preheating station by a manipulator for heating, with a temperature increase of 40°C, a pressure of 0 MPa, and a residence time of t1; The forming mold is sent from the fourth-level preheating station to the fifth-level preheating station by a robot for heating. The temperature rises by 40°C, the pressure rises from 0 MPa to 0.05 MPa, and the residence time is t1.

4. The aspheric lens molding manufacturing process according to claim 2, characterized in that: Step (a) is specifically as follows: the forming mold is sent to the primary preheating station by a robot for heating, the temperature is heated from room temperature to 450°C, the pressure is 0 MPa, and the residence time is t1; The forming mold is sent from the primary preheating station to the secondary preheating station by a manipulator for heating, with a temperature increase of 46°C, a pressure of 0 MPa, and a residence time of t1; The forming mold is sent from the secondary preheating station to the tertiary preheating station by a manipulator for heating, with a temperature increase of 46°C, a pressure of 0 MPa, and a residence time of t1; The forming mold is sent from the third-level preheating station to the fourth-level preheating station by a manipulator for heating, with a temperature increase of 46°C, a pressure of 0 MPa, and a residence time of t1; The forming mold is sent from the fourth-level preheating station to the fifth-level preheating station by a robot for heating. The temperature rises by 46°C, the pressure rises from 0 MPa to 0.05 MPa, and the residence time is t1.

5. The aspheric lens molding manufacturing process according to claim 2, characterized in that: Step (a) is specifically as follows: the forming mold is sent to the primary preheating station by a robot for heating, the temperature is heated from room temperature to 450°C, the pressure is 0 MPa, and the residence time is t1; The forming mold is sent from the primary preheating station to the secondary preheating station by a manipulator for heating, with a temperature increase of 50°C, a pressure of 0 MPa, and a residence time of t1; The forming mold is sent from the secondary preheating station to the tertiary preheating station by a manipulator for heating, with a temperature increase of 50°C, a pressure of 0 MPa, and a residence time of t1; The forming mold is sent from the third-level preheating station to the fourth-level preheating station by a manipulator for heating, with a temperature increase of 50°C, a pressure of 0 MPa, and a residence time of t1; The forming mold is sent from the fourth-level preheating station to the fifth-level preheating station by a robot for heating. The temperature rises by 50°C, the pressure rises from 0 MPa to 0.05 MPa, and the residence time is t1.

6. The aspheric lens molding manufacturing process according to claim 1, characterized in that: The molding temperature of the molding machine in step (b) is 680°C.

7. The aspheric lens molding manufacturing process according to claim 1, characterized in that: The slow cooling station of step (c) is composed of four slow cooling stations. The details of step (c) are as follows: The mold after compression molding is sent from the compression molding machine to the first-level slow cooling station by a manipulator, the temperature is reduced to 630℃, the pressure is increased from 0 MPa to 0.1 MPa, and the residence time is t1; The forming mold is sent from the primary slow cooling station to the secondary slow cooling station by a manipulator, the temperature is reduced to 550°C, the pressure is increased from 0 MPa to 0.1 MPa, and the residence time is t1; The forming mold is sent from the secondary slow cooling station to the tertiary slow cooling station by a manipulator, the temperature is reduced to 450°C, the pressure is increased from 0 MPa to 0.05 MPa, and the residence time is t1; The forming mold is sent from the third-level slow cooling station to the fourth-level slow cooling station by a robot, the temperature drops to 300°C, the pressure increases from 0 MPa to 0.05 MPa, and the residence time is t1.

8. The aspheric lens molding manufacturing process according to claim 1, characterized in that: The water cooling station of step (d) is composed of three water cooling stations. The specific steps of step (d) are as follows: The forming mold is sent from the five-stage slow cooling station to the first-stage water cooling station by a manipulator, the temperature is reduced to 200°C, the pressure is 0 MPa, and the residence time is t1; The forming mold is sent from the primary water cooling station to the secondary water cooling station by a manipulator, the temperature is reduced to 100°C, the pressure is 0 MPa, and the residence time is t1; The forming mold is sent from the secondary water cooling station to the tertiary water cooling station by a robot, the temperature drops to below 40°C, the pressure is 0Mpa, and the residence time is t1.

9. A process for manufacturing aspheric lens by compression molding according to any one of claims 1 to 8, characterized in that: The t1 is 150-160 seconds.

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