CN112519280A - Production process of blue-light-proof lens capable of being automatically blended - Google Patents
Production process of blue-light-proof lens capable of being automatically blended Download PDFInfo
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- CN112519280A CN112519280A CN201910671192.1A CN201910671192A CN112519280A CN 112519280 A CN112519280 A CN 112519280A CN 201910671192 A CN201910671192 A CN 201910671192A CN 112519280 A CN112519280 A CN 112519280A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00865—Applying coatings; tinting; colouring
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
- G02C7/104—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having spectral characteristics for purposes other than sun-protection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
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- Ophthalmology & Optometry (AREA)
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- Spectroscopy & Molecular Physics (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a production process of an automatic-burdening blue-light-proof lens, which comprises the following steps: the method comprises the steps of automatically batching, precisely weighing raw materials by using a high-precision platform scale, and selecting CR-39 chemical monomers, ultraviolet absorbers, blue light absorption aids, initiators (tert-butyl peroxides), additives and antioxidants as ingredients.
Description
Technical Field
The invention relates to the field of lens production, in particular to a production process of an automatic-batching blue-light-proof lens.
Background
The glasses product which is urgently needed in the market at present is a resin lens which has high impact resistance, small color difference, high transmissivity and light specific gravity and is suitable for being used in sports. While conventional optical resin ophthalmic lenses are generally produced from (CR-39) monomers or from diallyl isophthalate, diallyl terephthalate and their oligomers.
The existing production process for the blue-light-proof lens capable of automatically preparing materials is used for stirring and uniformly mixing, the phenomenon that materials are not uniformly mixed due to the fact that local material particles are small and can cause accumulation is caused, meanwhile, only blue-light-proof treatment is carried out on the lens, the protective performance is low, finally, in the process of machining the internal stress of the lens, the lens is continuously heated, damage to the lens can be caused, and certain influence is caused on the qualified rate of products.
Disclosure of Invention
The invention mainly aims to provide a production process of an automatic-batching blue-light-proof lens, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a production process of an automatic-batching blue-light-proof lens comprises the following steps:
A. automatic batching treatment: precisely weighing raw materials by using a high-precision platform scale, selecting a CR-39 chemical monomer, an ultraviolet light absorber, a blue light absorption aid, an initiator (tert-butyl peroxide), an additive and an antioxidant as ingredients,
the parts of the ingredients are 100 parts, 4-8 parts, 2-6 parts, 1-3 parts, 1 part and 1 part in sequence, all the stirred ingredients are poured into an ultrasonic oscillator for uniform oscillation, and then vacuum pumping is carried out at normal temperature for 10-30 minutes.
B. Smelting and manufacturing treatment: (1) melting and clarifying: heating and melting the materials poured into the configuration tank by using a microwave or electromagnetic heating device to obtain the viscous flow raw materials;
(2) and cooling and stirring: stirring the raw materials by using a stirring device, wherein a circulating water cooling pipeline is arranged in a stirring rod, and the stirring rod and the raw materials are fully stirred for 5-20 minutes;
(3) and raw material distribution: the raw material liquid flows out from a platinum feed pipe according to the flow rate of 100ml/s, and is cut into material drops with required weight parts by using special steel scissors.
C. Automatic profiling treatment: and injecting a glass gob with proper viscosity and weight into a mold cavity, and pressurizing by using an air blowing gun to prepare a lens blank.
D. High-temperature annealing treatment: after pressing, clamping the lens blank on the annealing net material by using a clamp for heating, keeping the temperature for 0.5-2 hours after heating to the annealing temperature, and then immediately cooling the lens blank.
E. And (3) product detection and warehousing: (1) and primary detection: the inspector visually observes whether the lens is obviously damaged or cracked;
(2) and detecting information such as internal stress, stripes, edge thickness and the like of the lens by using an instrument.
Preferably, in the step A, the mixed material is oscillated in the ultrasonic oscillator for 20-30 minutes, the raw materials are oscillated and uniformly mixed and then vacuumized, and the vacuumizing time is in direct proportion to the vacuum degree.
Preferably, in the step B, melting and clarifying are carried out, the raw material in the configuration tank is vacuumized by using a vacuum machine while microwave heating is carried out, the microwave can be transmitted under the vacuum condition, and the heating temperature is 100-300 ℃.
Preferably, in step C, the amount of compressed air in the air blowing gun is 2 to 4kg, and the air blowing gun is also used when the mold release treatment is performed.
Preferably, in step D, when the annealing web is heated to the annealing temperature, the temperature is raised to 40 ℃, then the temperature is maintained for 10-20 minutes, and the heating is continued until the temperature is raised to the annealing temperature.
Preferably, in the step E, the measurement can be carried out by a spectrometer, wherein the spectrometer is of a type of UV1900PC and has a spectral bandwidth of 1nm or 2 nm.
Preferably, a lens coating treatment is further included between step D and step E: and (3) coating blue-light prevention films on two surfaces of the lens, wherein the blue-light prevention films are composed of 40% of tin oxide, 30% of rubidium and 30% of platinum.
Compared with the prior art, the invention provides a production process of an automatic-burdening blue-light-proof lens, which has the following beneficial effects:
1. the raw materials are stirred and then subjected to ultrasonic oscillation operation, so that the granular materials are more fully mixed, and meanwhile, as the ultrasonic wave cannot be transmitted in vacuum, the ultrasonic oscillation operation is smaller and smaller when the vacuum pumping operation is continuously performed, so that the vacuum degree is in direct proportion to the oscillation effect, the oscillation operation is ensured to be slowly stopped, and the material mixing effect is improved;
2. according to the invention, by adopting the production method of adding the blue light absorption auxiliary agent and plating the film outside the lens, the blue light absorption auxiliary agent enables the lens to have the blue light prevention effect, and meanwhile, the blue light prevention film is plated on the surface of the lens, so that the double protection effect is achieved.
3. In the final high-temperature annealing stage, the temperature rise and the heat preservation are continuously carried out twice for a certain time in a step-shaped temperature rise mode, so that the internal stress of the lens can be removed, the lens cannot be damaged due to rapid temperature rise during processing operation, and the product production yield is improved to a certain extent.
The parts of the device not involved are the same as or can be implemented using prior art.
Drawings
FIG. 1 is a flow chart of the production process of the blue light prevention lens with automatic dosing of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
Referring to fig. 1, a production process of an automatic-batching blue-light-proof lens comprises the following steps:
A. automatic batching treatment: precisely weighing raw materials by using a high-precision platform scale, selecting a CR-39 chemical monomer, an ultraviolet light absorber, a blue light absorption aid, an initiator (tert-butyl peroxide), an additive and an antioxidant as ingredients,
the parts of the ingredients are 100 parts, 4 parts, 2 parts, 1 part and 1 part in sequence, all the stirred ingredients are poured into an ultrasonic oscillator for uniform oscillation, and then vacuumizing treatment is carried out at normal temperature, wherein the vacuumizing operation time is 10-30 minutes.
C. Smelting and manufacturing treatment: (1) melting and clarifying: heating and melting the materials poured into the configuration tank by using a microwave or electromagnetic heating device to obtain the viscous flow raw materials;
(4) and cooling and stirring: stirring the raw materials by using a stirring device, wherein a circulating water cooling pipeline is arranged in a stirring rod, and the stirring rod and the raw materials are fully stirred for 5-20 minutes;
(5) and raw material distribution: the raw material liquid flows out from a platinum feed pipe according to the flow rate of 100ml/s, and is cut into material drops with required weight parts by using special steel scissors.
C. Automatic profiling treatment: and injecting a glass gob with proper viscosity and weight into a mold cavity, and pressurizing by using an air blowing gun to prepare a lens blank.
D. High-temperature annealing treatment: after pressing, clamping the lens blank on the annealing net material by using a clamp for heating, keeping the temperature for 0.5-2 hours after heating to the annealing temperature, and then immediately cooling the lens blank.
E. And (3) product detection and warehousing: (1) and primary detection: the inspector visually observes whether the lens is obviously damaged or cracked;
(2) and detecting information such as internal stress, stripes, edge thickness and the like of the lens by using an instrument.
In the step A, the mixed materials are oscillated in the ultrasonic oscillator for 20-30 minutes, the raw materials are oscillated and uniformly mixed and then vacuumized, and the evacuation time is in direct proportion to the vacuum degree.
In the step B, melting and clarifying, and vacuumizing the raw material in the preparation tank by using a vacuum machine while performing microwave heating, wherein the microwave can be transmitted under the vacuum condition, and the heating temperature is 100-300 ℃.
In step C, the amount of compressed air in the air blowing gun was 2 to 4kg, and the air blowing gun was also used when the mold release treatment was performed.
In the step D, when the annealing net material is heated to the annealing temperature, the temperature is firstly increased to 40 ℃, then the temperature is kept for 10-20 minutes, and the temperature is continuously increased until the temperature is increased to the annealing temperature.
In step E, the measurement can also be performed using a spectrometer, which is model UV1900PC, with a spectral bandwidth of 1nm or 2 nm.
And D, lens coating treatment is further included between the step D and the step E: and (3) coating blue-light prevention films on two surfaces of the lens, wherein the blue-light prevention films are composed of 40% of tin oxide, 30% of rubidium and 30% of platinum.
Example 2
Referring to fig. 1, a production process of an automatic-batching blue-light-proof lens comprises the following steps:
A. automatic batching treatment: precisely weighing raw materials by using a high-precision platform scale, selecting a CR-39 chemical monomer, an ultraviolet light absorber, a blue light absorption aid, an initiator (tert-butyl peroxide), an additive and an antioxidant as ingredients,
the parts of the ingredients are 100 parts, 6 parts, 4 parts, 2 parts, 1 part and 1 part in sequence, all the stirred ingredients are poured into an ultrasonic oscillator for uniform oscillation, and then vacuumizing treatment is carried out at normal temperature, wherein the vacuumizing operation time is 10-30 minutes.
D. Smelting and manufacturing treatment: (1) melting and clarifying: heating and melting the materials poured into the configuration tank by using a microwave or electromagnetic heating device to obtain the viscous flow raw materials;
(6) and cooling and stirring: stirring the raw materials by using a stirring device, wherein a circulating water cooling pipeline is arranged in a stirring rod, and the stirring rod and the raw materials are fully stirred for 5-20 minutes;
(7) and raw material distribution: the raw material liquid flows out from a platinum feed pipe according to the flow rate of 100ml/s, and is cut into material drops with required weight parts by using special steel scissors.
C. Automatic profiling treatment: and injecting a glass gob with proper viscosity and weight into a mold cavity, and pressurizing by using an air blowing gun to prepare a lens blank.
D. High-temperature annealing treatment: after pressing, clamping the lens blank on the annealing net material by using a clamp for heating, keeping the temperature for 0.5-2 hours after heating to the annealing temperature, and then immediately cooling the lens blank.
E. And (3) product detection and warehousing: (1) and primary detection: the inspector visually observes whether the lens is obviously damaged or cracked;
(2) and detecting information such as internal stress, stripes, edge thickness and the like of the lens by using an instrument.
In the step A, the mixed materials are oscillated in the ultrasonic oscillator for 20-30 minutes, the raw materials are oscillated and uniformly mixed and then vacuumized, and the evacuation time is in direct proportion to the vacuum degree.
In the step B, melting and clarifying, and vacuumizing the raw material in the preparation tank by using a vacuum machine while performing microwave heating, wherein the microwave can be transmitted under the vacuum condition, and the heating temperature is 100-300 ℃.
In step C, the amount of compressed air in the air blowing gun was 2 to 4kg, and the air blowing gun was also used when the mold release treatment was performed.
In the step D, when the annealing net material is heated to the annealing temperature, the temperature is firstly increased to 40 ℃, then the temperature is kept for 10-20 minutes, and the temperature is continuously increased until the temperature is increased to the annealing temperature.
In step E, the measurement can also be performed using a spectrometer, which is model UV1900PC, with a spectral bandwidth of 1nm or 2 nm.
And D, lens coating treatment is further included between the step D and the step E: and (3) coating blue-light prevention films on two surfaces of the lens, wherein the blue-light prevention films are composed of 40% of tin oxide, 30% of rubidium and 30% of platinum.
Example 3
Referring to fig. 1, a production process of an automatic-batching blue-light-proof lens comprises the following steps:
A. automatic batching treatment: precisely weighing raw materials by using a high-precision platform scale, selecting a CR-39 chemical monomer, an ultraviolet light absorber, a blue light absorption aid, an initiator (tert-butyl peroxide), an additive and an antioxidant as ingredients,
the parts of the ingredients are 100 parts, 8 parts, 6 parts, 3 parts, 1 part and 1 part in sequence, all the stirred ingredients are poured into an ultrasonic oscillator for uniform oscillation, and then vacuumizing treatment is carried out at normal temperature, wherein the vacuumizing operation time is 10-30 minutes.
E. Smelting and manufacturing treatment: (1) melting and clarifying: heating and melting the materials poured into the configuration tank by using a microwave or electromagnetic heating device to obtain the viscous flow raw materials;
(8) and cooling and stirring: stirring the raw materials by using a stirring device, wherein a circulating water cooling pipeline is arranged in a stirring rod, and the stirring rod and the raw materials are fully stirred for 5-20 minutes;
(9) and raw material distribution: the raw material liquid flows out from a platinum feed pipe according to the flow rate of 100ml/s, and is cut into material drops with required weight parts by using special steel scissors.
C. Automatic profiling treatment: and injecting a glass gob with proper viscosity and weight into a mold cavity, and pressurizing by using an air blowing gun to prepare a lens blank.
D. High-temperature annealing treatment: after pressing, clamping the lens blank on the annealing net material by using a clamp for heating, keeping the temperature for 0.5-2 hours after heating to the annealing temperature, and then immediately cooling the lens blank.
E. And (3) product detection and warehousing: (1) and primary detection: the inspector visually observes whether the lens is obviously damaged or cracked;
(2) and detecting information such as internal stress, stripes, edge thickness and the like of the lens by using an instrument.
In the step A, the mixed materials are oscillated in the ultrasonic oscillator for 20-30 minutes, the raw materials are oscillated and uniformly mixed and then vacuumized, and the evacuation time is in direct proportion to the vacuum degree.
In the step B, melting and clarifying, and vacuumizing the raw material in the preparation tank by using a vacuum machine while performing microwave heating, wherein the microwave can be transmitted under the vacuum condition, and the heating temperature is 100-300 ℃.
In step C, the amount of compressed air in the air blowing gun was 2 to 4kg, and the air blowing gun was also used when the mold release treatment was performed.
In the step D, when the annealing net material is heated to the annealing temperature, the temperature is firstly increased to 40 ℃, then the temperature is kept for 10-20 minutes, and the temperature is continuously increased until the temperature is increased to the annealing temperature.
In step E, the measurement can also be performed using a spectrometer, which is model UV1900PC, with a spectral bandwidth of 1nm or 2 nm.
And D, lens coating treatment is further included between the step D and the step E: and (3) coating blue-light prevention films on two surfaces of the lens, wherein the blue-light prevention films are composed of 40% of tin oxide, 30% of rubidium and 30% of platinum.
The ratio of the raw materials used in the above three examples was different, and the data of the visible light transmittance and the blue light transmittance measured when the lens was finally subjected to transmittance measurement were 97.51% and 0.0081%, 98.37% and 0.0081%, and 98.01% and 0.010%, respectively, from which it can be seen that the best effect was obtained in the selection example 2.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A production process of an automatic-batching blue-light-proof lens comprises the following steps:
A. automatic batching treatment: precisely weighing raw materials by using a high-precision platform scale, selecting a CR-39 chemical monomer, an ultraviolet light absorber, a blue light absorption aid, an initiator (tert-butyl peroxide), an additive and an antioxidant as ingredients,
the parts of the ingredients are 100 parts, 4-8 parts, 2-6 parts, 1-3 parts, 1 part and 1 part in sequence, all the stirred ingredients are poured into an ultrasonic oscillator for uniform oscillation, and then vacuumizing treatment is carried out at normal temperature, wherein the vacuumizing operation time is 10-30 minutes;
B. smelting and manufacturing treatment: (1) melting and clarifying: heating and melting the materials poured into the configuration tank by using a microwave or electromagnetic heating device to obtain the viscous flow raw materials;
(2) and cooling and stirring: stirring the raw materials by using a stirring device, wherein a circulating water cooling pipeline is arranged in a stirring rod, and the stirring rod and the raw materials are fully stirred for 5-20 minutes;
(3) and raw material distribution: raw material liquid flows out from a platinum feeding pipe according to the flow of 100ml/s, and is cut into material drops with required weight parts by using special steel scissors;
C. automatic profiling treatment: injecting glass gob with proper viscosity and weight into a mold cavity, and pressurizing by using an air blowing gun to prepare a lens blank;
D. high-temperature annealing treatment: after pressing, clamping the lens blank on an annealing net material by using a clamp for heating, keeping the temperature for 0.5-2 hours after heating to the annealing temperature, and then immediately cooling the lens blank;
E. and (3) product detection and warehousing: (1) and primary detection: the inspector visually observes whether the lens is obviously damaged or cracked;
(2) and detecting information such as internal stress, stripes, edge thickness and the like of the lens by using an instrument.
2. The process for producing an automatically dosed blue-light blocking lens according to claim 1, wherein: in the step A, the mixed materials are oscillated in the ultrasonic oscillator for 20-30 minutes, the raw materials are oscillated and uniformly mixed and then vacuumized, and the evacuation time is in direct proportion to the vacuum degree.
3. The process for producing an automatically dosed blue-light blocking lens according to claim 1, wherein: in the step B, melting and clarifying, and vacuumizing the raw material in the preparation tank by using a vacuum machine while performing microwave heating, wherein the microwave can be transmitted under the vacuum condition, and the heating temperature is 100-300 ℃.
4. The process for producing an automatically dosed blue-light blocking lens according to claim 1, wherein: in step C, the amount of compressed air in the air blowing gun was 2 to 4kg, and the air blowing gun was also used when the mold release treatment was performed.
5. The process for producing an automatically dosed blue-light blocking lens according to claim 1, wherein: in the step D, when the annealing net material is heated to the annealing temperature, the temperature is firstly increased to 40 ℃, then the temperature is kept for 10-20 minutes, and the temperature is continuously increased until the temperature is increased to the annealing temperature.
6. The process for producing an automatically dosed blue-light blocking lens according to claim 1, wherein: in step E, the measurement can also be performed using a spectrometer, which is model UV1900PC, with a spectral bandwidth of 1nm or 2 nm.
7. The process for producing an automatically dosed blue-light blocking lens according to claim 1, wherein: and D, lens coating treatment is further included between the step D and the step E: and (3) coating blue-light prevention films on two surfaces of the lens, wherein the blue-light prevention films are composed of 40% of tin oxide, 30% of rubidium and 30% of platinum.
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2019
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| CN107475778A (en) * | 2017-09-03 | 2017-12-15 | 湖北天宝光电科技有限公司 | Strengthen the method for annealing and annealing fixture of the anti-drop intensity of Sapphire mobile phone eyeglass |
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