CN113791496A - Method for bonding nylon glasses legs and PC material side shell, glasses frame and VR glasses - Google Patents
Method for bonding nylon glasses legs and PC material side shell, glasses frame and VR glasses Download PDFInfo
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- CN113791496A CN113791496A CN202111009451.8A CN202111009451A CN113791496A CN 113791496 A CN113791496 A CN 113791496A CN 202111009451 A CN202111009451 A CN 202111009451A CN 113791496 A CN113791496 A CN 113791496A
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Images
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/022—Mechanical pre-treatments, e.g. reshaping
- B29C66/0222—Mechanical pre-treatments, e.g. reshaping without removal of material, e.g. cleaning by air blowing or using brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/022—Mechanical pre-treatments, e.g. reshaping
- B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/028—Non-mechanical surface pre-treatments, i.e. by flame treatment, electric discharge treatment, plasma treatment, wave energy or particle radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/84—Specific machine types or machines suitable for specific applications
-
- 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
- B29D12/00—Producing frames
- B29D12/02—Spectacle frames
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Eyeglasses (AREA)
Abstract
The invention provides a method for bonding a nylon temple and a PC side shell, a spectacle frame and VR glasses, which are used for connecting the nylon temple made of elastic nylon material and the PC side shell made of PC material, wherein the width range of the connecting plane of the nylon temple and the PC side shell is 0-0.8 mm, and the method comprises the following steps: A. the nylon glasses legs are formed by injection molding; B. carrying out UV modification on the nylon glasses legs treated in the step A through a UV lamp; C. b, performing laser etching on the dispensing surface of the nylon mirror leg treated in the step B through a laser etching machine; D. c, carrying out plasma cleaning on the dispensing surface of the nylon glasses leg treated in the step C; E. dispensing glue on the dispensing surface of the nylon glasses leg processed in the step D, and bonding the nylon glasses leg with the PC material side shell. Through plasma cleaning, the problem that the nylon part is poor or non-sticky in bonding with a PC material due to pollution caused by spraying a release agent when oil, water or a plastic part is demoulded in the bonding process is solved.
Description
Technical Field
The invention relates to the technical field of virtual reality equipment, in particular to a method for bonding a nylon glasses leg and a PC material side shell, a glasses frame and VR glasses.
Background
With the accelerated deployment of 5G in the world, the virtual reality industry is the development direction of future technologies, and virtual reality head-mounted display equipment, for short VR head-mounted VR glasses, is a product integrating a plurality of technologies such as a simulation technology and a computer graphics man-machine interface technology multimedia technology sensing technology network technology, and is a brand-new man-machine interaction means created by means of a computer and a latest sensor technology.
The head-mounted devices such as AR and VR are one of the terminal bearing main bodies in the future 5G era. In order to make the head-wearing equipment comfortable to wear, the whole body needs to be light, and the leg parts need to be designed to have enough elasticity and softness. In order to achieve the effect and meet the requirement of supporting and wearing strength, the glasses legs need to be designed into a mode of an internal part and an external part, the internal part needs to ensure certain strength and can meet normal assembly and wearing support, but the glasses legs cannot be too hard to avoid influencing wearing experience (clamping the head bag); skin-friendly soft rubber is selected for use as the external part material, guarantees the notice of outward appearance requirement, brings very big match comfort level, and weight can not be overweight.
To inboard mirror leg built-in selected materials mainly be PC in the current market, the advantage: 1. materials are commonly used in the industry, and the method is mature; 2. the material has good adhesive performance. The disadvantages are as follows: the PC material is harder, and the glasses legs are uncomfortable to wear. Especially, when the material of the inner side glasses leg built-in piece is elastic nylon, even if the material has good rebound resilience and can meet the requirement of structural strength, the material formula is different and contains a certain release agent due to the increase of elasticity, and the bonding area between the two parts is limited due to the small size of the two parts, so that the bonding performance between the parts is very poor.
Disclosure of Invention
In order to solve the problems, the invention provides a method for bonding a nylon temple and a PC material side shell.
The invention is realized by the following technical scheme: a method for bonding a nylon temple and a PC material side shell is used for bonding the width of a connecting plane between the nylon temple and the PC material side shell, wherein the width of the connecting plane is less than 0.8mm, and is characterized by comprising the following steps:
irradiating the nylon glasses legs through a UV lamp, and performing UV modification;
carrying out laser etching on the dispensing surface of the nylon glasses leg;
carrying out plasma cleaning on the dispensing surface of the nylon glasses leg;
dispensing glue on the dispensing surface of the nylon glasses legs, and bonding the nylon glasses legs with the PC material side shell.
As a further improvement of the above scheme, in the step of irradiating the nylon temple with a UV lamp to perform UV modification:
the energy of the UV lamp was 90W, the distance of the UV lamp from the nylon temple was 3 mm, and the time for which the UV lamp irradiated the nylon temple was 15 minutes.
As a further improvement of the above scheme, in the step of performing laser etching on the dispensing surface of the nylon temple:
and carrying out laser etching on the glue dispensing surface of the nylon mirror leg through a laser etching machine, wherein the laser etching machine is an ultraviolet laser etching machine.
As a further improvement of the above scheme, in the step of performing laser etching on the dispensing surface of the nylon temple:
and forming a laser carving surface on the dispensing surface of the nylon glasses leg, wherein the dyne value of the laser carving surface is more than or equal to 38.
As a further improvement of the above scheme, the step of performing plasma cleaning on the dispensing surface of the nylon temple and the step of dispensing on the dispensing surface of the nylon temple and bonding with the PC material side casing further include the steps of:
and a predetermined time interval, wherein the duration of the predetermined time is in the range of 0-6 hours.
As a further improvement of the above, in the step of spacing the predetermined time:
if the time length of the interval preset time is more than 6 hours, returning to the step: and carrying out plasma cleaning on the dispensing surfaces of the nylon glasses legs.
As a further improvement of the scheme, the elastic nylon material adopted by the nylon temple is pebax7233sp01 or/and EcoPAXX Q-Y.
As a further improvement of the above scheme, the nylon temple is injection molded, the injection molding is double-shot injection molding, and the materials of the double-shot injection molding are pebax7233sp01 and silica gel respectively.
An eyeglass frame comprising two temples and a frame, wherein the two temples are hinged with the frame, the temples comprise an inner temple and an outer temple, the inner temple comprises a nylon temple, the outer temple comprises a PC side shell, and the connecting method between the inner temple and the outer temple adopts the bonding method of the nylon temple and the PC side shell as claimed in any one of claims 1-8.
A VR glasses, includes foretell spectacle frame, still includes the display subject, the display subject sets firmly in the spectacle frame.
The invention has the beneficial effects that:
the invention provides a bonding method of an elastic nylon material and a PC material, which is used for connecting a nylon temple made of the elastic nylon material and a PC material side shell made of the PC material, wherein the width range of a connecting plane of the nylon temple and the PC material side shell is 0-0.8 mm, and the bonding method comprises the following steps: A. the nylon glasses legs are formed by injection molding; B. carrying out UV modification on the nylon glasses legs treated in the step A through a UV lamp; C. b, performing laser etching on the dispensing surface of the nylon mirror leg treated in the step B through a laser etching machine; D. c, carrying out plasma cleaning on the dispensing surface of the nylon glasses leg treated in the step C; E. dispensing glue on the dispensing surface of the nylon glasses leg processed in the step D, and bonding the nylon glasses leg with the PC material side shell. Through plasma cleaning, the problem that the nylon part is not well adhered or sticky with PC materials due to pollution caused by spraying a release agent when oil, water or plastic parts are demoulded in the adhering process is solved; by UV modification, the problem that the nylon piece is not bonded with PC material due to adhesion and pollution of air, water vapor or oil gas in the process of storage or transportation is solved; the structure of the bonding surface is improved through laser etching, and the problem that the raw material characteristics of a nylon piece contain components which are not easy to bond with a PC material and cause poor bonding is solved.
Drawings
Fig. 1 is a perspective view of an eyeglass frame of the present invention;
FIG. 2 is an exploded view of the temple bar of the present invention;
fig. 3 is a perspective view of VR glasses in accordance with the present invention;
fig. 4 is a schematic view of a connection method of a nylon temple and a PC material side shell according to the present invention.
Detailed Description
In order to more clearly and completely describe the technical scheme of the invention, the invention is further described with reference to the accompanying drawings.
With the accelerated deployment of 5G in the world, the virtual reality industry has been the development direction of future technologies, and head-mounted devices such as AR and VR are one of the terminal bearing bodies in the future 5G era. In order to make the head-wearing equipment comfortable to wear, the whole body needs to be light, and the leg parts need to be designed to have enough elasticity and softness. In order to achieve the effect and meet the requirement of supporting and wearing strength, the glasses legs need to be designed into a mode of an internal part and an external part, the internal part needs to ensure certain strength and can meet normal assembly and wearing support, but the glasses legs cannot be too hard to avoid influencing wearing experience (clamping the head bag); skin-friendly soft rubber is selected for external parts, so that the notice of appearance requirements is guaranteed, and great matching comfort is brought.
Virtual reality head-mounted display equipment, referred to as VR head-mounted VR glasses for short, is a product which utilizes a plurality of technology sets such as simulation technology, computer graphics man-machine interface technology, multimedia technology, sensing technology, network technology and the like, and is a brand-new man-machine interaction means created by means of computers and latest sensor technology.
To inboard mirror leg built-in selected materials mainly be PC in the current market, the advantage: 1. materials are commonly used in the industry, and the method is mature; 2. the material has good adhesive performance. The disadvantages are as follows: the PC material is harder, and the glasses legs are uncomfortable to wear. The material of the inner part of the inner side glasses leg is elastic nylon, so that the elastic resilience is good, the requirement on structural strength can be met, but the bonding performance is very poor due to the fact that the material is added with elasticity, the material formula is different, and the material contains a certain release agent and the inner part is arranged. The mirror leg border point is glued bonding width 0.8mm (market race article analysis has been bonding width upper limit, and head type equipment is light and handy design trend), and the initial verification is used for AB glue and the hot melt adhesive that nylon and PC bonded for a plurality of money, and tool dwell time 2 ~ 4h (conventional parameter), bonding effect are all very poor, and the temperature dashes and all can come unstuck after the mirror leg is buckled the experiment.
The scheme of the invention mainly solves the problem of poor adhesiveness between the elastic nylon and the PC, so that the material can be applied to head-wearing equipment in a virtual reality technology, and the material can meet the structural strength and bring good wearing experience.
A method for adhering elastic nylon material and PC material is used for connecting a nylon temple made of elastic nylon material and a PC material side shell made of PC material, specifically, the nylon temple and the PC material side shell are shell parts or slender strip parts, if the nylon temple and the PC material side shell are shell parts, the nylon temple and the PC material side shell are provided with the same or similar connecting walls (the obvious characteristics of the shell parts), the thickness of the connecting walls of the nylon temple and the PC material side shell is in the range of 0-0.8 mm, and the nylon temple and the PC material side shell are adhered by mutually matching overhanging planes of the connecting walls. If the nylon temple and the PC material side shell are slender strip-shaped parts, the width range of the connecting plane of the nylon temple and the PC material side shell is 0-0.8 mm, and the bonding method specifically comprises the following steps:
the nylon glasses legs are formed by injection molding; as a further improvement of this step described above, the elastic nylon is pebax7233sp01 or EcoPAXX Q-Y.
In particular, since the head-mounted device in the virtual reality technology needs to be in direct contact with the skin of a person, in the embodiment, the nylon temple is in direct contact with the human body, and in order to maintain the wearing comfort of the person to the maximum extent, a skin-friendly and soft material, such as silica gel or liquid silica gel, needs to be added on the outer side of the nylon temple, and the silica gel has the characteristic that many other similar materials are difficult to replace: high adsorption performance, good thermal stability, stable chemical property, higher mechanical strength and the like. The material is cheap in raw materials and processing equipment.
TPE materials, also known as elastomers or elastomers, may also be used. The product not only has the excellent performances of high elasticity, aging resistance and oil resistance of the traditional cross-linked vulcanized rubber, but also has the characteristics of convenient processing and wide processing mode of common plastics. The nozzle can be produced by processing modes such as injection molding, extrusion, blow molding and the like, and 100 percent of the nozzle corners are directly used for the second time after being crushed. The processing process is simplified, and the processing cost is reduced, so that the thermoplastic elastomer TPE/TPR material becomes a latest material for replacing the traditional rubber, is environment-friendly, nontoxic, comfortable in hand feeling and exquisite in appearance, and makes the product more creative. Therefore, the material is a novel synthetic material with more humanization and high grade, and is also a worldwide standard environment-friendly material. The method comprises the following specific steps: after the nylon glasses legs are subjected to injection molding, the nylon glasses legs are placed in a mold, and then the outer side surfaces of the nylon glasses legs are subjected to oil pressure on silica gel.
As a further improvement of the scheme, the nylon glasses legs in the step A are molded by double-color injection molding, and the materials of the double-color injection molding are pebax7233sp01 and silica gel, or EcoPAXX Q-Y and silica gel. Double-shot injection molding (double-shot molding) is an operating method for performing injection molding on the same plastic with two different colors through the same nozzle simultaneously or sequentially after the same plastic with two different colors is plasticized through two charging barrels. The product with various mixed color patterns and obvious color separation can be prepared by using two injection molding machines or a double-color injection molding machine for molding. Compared with the traditional injection molding, the double-color injection molding has the following advantages:
1. the core material may use a low viscosity material to reduce the ejection pressure.
2. The core material can use the recycled secondary material from the consideration of environmental protection.
3. According to different use characteristics, such as a soft material is used as a thick finished leather layer material, a hard material is used as a core material, or foamed plastic can be used as the core material to reduce the weight.
4. Lower quality core material can be utilized to reduce costs.
5. The cladding material or the core material can be made of materials with high price and special surface properties, such as electromagnetic wave interference resistance, high conductivity and the like, so as to improve the product performance.
6. Proper combination of the skin material and the core material can reduce the residual stress of a formed product, and increase the mechanical strength or the surface property of the product.
B. C, carrying out UV modification on the nylon glasses legs treated in the step A through a UV lamp; oil, water and a release agent adhered to the surface of the plastic accessory product are removed by UV irradiation, and an oxidation aging layer is formed on the surface of the plastic accessory product, so that the plastic accessory product has good adhesion capability. As a further improvement of the above step, the energy of the UV lamp in step B was 90W, the distance of the UV lamp from the product was 3 mm, and the time for irradiating the inner temple with the UV lamp was 15 minutes.
C. B, performing laser etching on the dispensing surface of the nylon mirror leg through a laser etching machine on the nylon mirror leg processed in the step B; the laser engraving machine engraves permanent marks on the surface of a substance or in a transparent substance by using a laser (laser) beam. The laser beam can generate biochemical effect and special effect on the substance! The laser carving machine is a scientific and technological device which utilizes laser to carve materials needing to be carved. The laser engraving machine is different from a mechanical engraving machine and other traditional manual engraving modes, and the mechanical engraving machine uses numerical control machinery, such as high-hardness diamond and other materials with extremely high hardness to engrave other objects with relatively low hardness.
The laser carving machine is also called as a laser carving machine and comprises a laser and a gas nozzle on an output light path of the laser, wherein one end of the gas nozzle is a window, the other end of the gas nozzle is a nozzle coaxial with the light path of the laser, the side surface of the gas nozzle is connected with a gas pipe, the gas pipe is connected with an air or oxygen source, and a reflector is arranged on the light path between the laser and the gas nozzle. The reflector can improve the carving efficiency, so that the surface of the carved position is smooth and mellow, the temperature of the carved non-metallic material is rapidly reduced, and the deformation and the internal stress of the carved object are reduced; can be widely used in the field of fine carving of various non-metallic materials.
As a further improvement of the above steps, the laser etching machine in step C is an ultraviolet laser etching machine, a green laser etching machine, or other light laser etching machines, but it is not suitable to use a laser etching machine with too long wavelength such as a red laser etching machine, and the wavelength of the ultraviolet laser etching machine is short and the power is low (generally below 10W); the red laser engraving machine is long in wavelength and high in power (generally more than 20W), and the nylon glasses legs are made of nylon materials, and the red laser engraving machine is selected to burn the dispensing surfaces, so that products are scrapped, good dispensing surfaces cannot be formed through processing, and good bonding effects cannot be achieved.
And as a further improvement of the steps, the dispensing surfaces of the inner side mirror legs are subjected to laser etching by the ultraviolet laser etching machine after the treatment in the step B, and the dyne value of the laser etching surfaces is more than or equal to 38. The laser carving can make uneven small pits on the product, and the adhesive area is increased. The dyne value is derived from dynes. The dyne is a unit of force, and the surface tension and dyne values are generally popular terms, and the surface tension coefficient is exactly the dyne value. Defined as the force that draws each other per unit length between two adjacent portions of the surface of a liquid.
The common simple test method for the dyne value is a dyne pen which has various specifications such as 36, 38, 40, 42, 44 and the like, and represents the corresponding surface tension coefficient. The numbers which we generally say are 38, 40 represent the material surface tension coefficient as large.
A more accurate method of measuring surface tension or surface energy is contact angle measurement, since the stylus itself ignores the polar and nonpolar components of the tension value. The general automobile or surface treatment industry uses a portable contact angle measuring instrument (MSA) to obtain the surface energy of a solid through an OWRK equation by using two liquid drop contact angles with different properties.
The principle of calculating the surface free energy by the contact angle measuring instrument is to measure the contact angle of the surface of a solid and then calculate the surface free energy of the solid according to the international conventional surface free energy formula. The unit of the surface free energy is mJ/m2, and since the surface free energy is used together with the surface tension in many cases, the same value is obtained using mN/m as the unit. The following considerations need to be taken in calculating the surface free energy: (1) the surface free energy is calculated, the source data is the contact angle, and therefore, the accuracy and repeatability of the contact angle measurement are ensured so as to ensure the accuracy of the surface free energy data. (2) The calculation formula of the surface free energy is different for different scientists, and the derived formula is different for applicable solids, so the same contact angle data, the adopted calculation formula of the surface free energy is different, and the surface free energy is different. Generally, the higher the surface free energy of a solid, the better the wetting of a water droplet on the surface of the solid, and the smaller the contact angle. The lower the surface free energy of the solid, the less well the water drop can wet the surface of the solid, and the larger the contact angle.
The dyne value is obtained by using a dyne pen to scratch the surface of the solid, and then judging whether the surface free energy of the solid is lower or higher than the dyne pen value used for testing, wherein the dyne pens with different values correspond to surface tension liquids with different values.
In the invention, a No. 38 dyne pen test is adopted to judge whether the tested numerical value meets the condition, the larger the numerical value is, the higher the surface cleanliness of the product is, and the more firm the bonding between the nylon glasses legs and the PC material side shell after the dispensing is carried out.
D. C, carrying out plasma cleaning on the dispensing surface of the nylon glasses leg treated in the step C; plasma is a form of matter with free electrons and charged ions as the main components, widely existing in the universe, and is often considered to be the fourth state of matter, called the plasma state, or "super-gaseous", also called "plasma body". The plasma has high conductivity and has extremely strong coupling effect with an electromagnetic field. It is a partially ionized gas composed of electrons, ions, radicals, neutral particles, and photons, the plasma itself is an electrically neutral mixture containing physically and chemically active particles that are capable of performing chemical work, while charged atoms and molecules are capable of performing physical work by sputtering.
The plasma cleaning method can complete surface modification of various materials, and has the effects of surface activation, pollutant removal, etching and the like. The plasma surface treatment is to treat the surface of the nylon temple by utilizing the properties of the active components, thereby achieving the purposes of cleaning, modification, photoresist ashing and the like. The specific operation is that the nylon temple is placed in a plasma cleaning equipment clamp base, the glue dispensing surface of the nylon temple is cleaned by using uniform plasma gas generated by plasma cleaning equipment, plasma treatment is a method for ensuring the consistency of the glue dispensing surface in mass production, the surface energy can meet the bonding requirement after laser etching, but the product laser etching needs to pass through other production processes and environments when the glue dispensing product is subjected to laser etching, for example, the glue dispensing product is stored in a workshop, dust in the workshop can fall on the glue dispensing surface to influence the bonding effect, and plasma needs to be added in order to ensure the consistency.
E. And D, dispensing the glue on the glue dispensing surface of the nylon glasses leg processed in the step D, and bonding the nylon glasses leg with the PC material side shell.
As a further improvement of the above step, the time period between step D and step E is in the range of 0 to 6 hours.
As a further improvement of the above step, if the time period between step D and step E is more than 6 hours, the process returns to step D.
In order to fully illustrate the effect of the method, in this embodiment, the nylon temple is made of pebax7233sp01 nylon material (shell type part) and the PC material side shell is bonded by PC material (shell type part) to form a sample, and through a comparative experiment, the following examples are formed:
comparative example 1
The nylon material pebax7233sp01 and the PC material are bonded by AB glue or hot melt glue, the jig pressure maintaining time is 2-4 h (conventional parameters), the bonding effect is poor, and the degumming can be realized after the top pressure and bending experiments.
Comparative example 1 for testing top pressure of part
The sample 2 is formed by bonding a pebax7233sp01 nylon material and a PC material, wherein the pebax7233sp01 nylon material does not adopt the laser etching method, and other methods are normally used.
And (3) testing conditions are as follows: the first end (fixed end) of the fixed sample 2 is pressed against the second end (movable end) of the sample 2 by 10N force, the second end of the sample 2 is pressed to a test plane in a one-time cycle (1000 times of test is required), and the test is performed every 100 times after 1500 times. The test results were as follows:
| |
1 | 2 | 3 | 4 | 5 |
| Not etching with laser | 213 times | 271 times of | 252 times | 259 times | 208 times (one time) |
| Overall process flow | 2500 times (times) | 2000 times | 3000 times (twice) | 2500 times (times) | 2500 times (times) |
Comparative example 2 of component top pressure test for stripping
The sample 3 is formed by bonding a pebax7233sp01 nylon material and a PC material, wherein the pebax7233sp01 nylon material does not adopt the UV modification method, and the other methods are normally used.
And (3) testing conditions are as follows: the first end of the sample 3 is fixed, the device pushes the second end of the sample 3 with 10N force, and the second end of the sample 3 is pressed flat to the test plane in one cycle (1000 tests are required), and every 100 tests are performed after 1500 times. The test results were as follows:
| |
1 | 2 | 3 | 4 | 5 |
| Without UV modification | 652 times (times) | 681 times | 589 times | 633 times | 620 times of |
| Overall process flow | 2000 times | 1800 times | 2100 times | 2100 times | 1900 times |
Part distortion testing comparative example 1
The sample piece 4 is formed by bonding a pebax7233sp01 nylon material and a PC material, wherein the pebax7233sp01 nylon material does not adopt the laser etching method, and other methods are normally used.
And (3) testing conditions are as follows: the first end of the sample 4 was fixed and the second end of the sample 4 was clamped and twisted by 90 degrees with a force of 30N for one cycle (50 passes were required). The test results were as follows:
| |
1 | 2 | 3 | 4 | 5 |
| Not etching with |
3 times of | 3 times of | 5 times (twice) | 3 times of | 2 times (one time) |
| Overall process flow | 53 times (twice) | 65 times | 72 times | 66 times (times) | 59 times (one time) |
Part distortion testing comparative example 2
And the sample piece 5 is formed by bonding a pebax7233sp01 nylon material and a PC material, wherein the pebax7233sp01 nylon material does not adopt the UV modification method, and the other methods are normally used.
And (3) testing conditions are as follows: the first end of the sample 5 was fixed and the second end of the sample 5 was clamped and twisted by 90 degrees with a force of 30N for one cycle (50 passes were required). The test results were as follows:
| |
1 | 2 | 3 | 4 | 5 |
| Without UV modification | 15 times of | 10 times of | 12 times (twice) | 16 times (twice) | 12 times (twice) |
| Overall process flow | 61 times (twice) | 53 times (twice) | 58 times (times) | 65 times | 61 times (twice) |
The experimental results are as follows: it can be seen that when the pebax7233sp01 nylon material is connected with the PC material, if the method is not adopted, the results are not ideal whether the sample is subjected to a torsion test or a bending test, and the sample formed by bonding the nylon material and the PC material is easy to separate from each other, so that the bonding effect is poor.
In the compression test, after the laser etching method was performed, the adhesive strength of the sample 3 was much stronger than that of the sample 1, although no UV modification was performed. When the laser etching method is not performed and only the UV modification is performed, the bonding strength of the sample 3 is far stronger than that of the sample 2.
In the torsion resistance test, after the laser etching method was performed, the adhesive strength of sample 3 was much stronger than that of sample 1, although no UV modification was performed. When the laser etching method is not performed and only the UV modification is performed, the bonding strength of the sample 3 is far stronger than that of the sample 2.
And moreover, the laser engraving method plays the most remarkable role in generating the bonding effect of the whole method according to data, and then the UV modification and the plasma cleaning enable the dispensing surface to be kept clean, so that the bonding effect is further enhanced.
Meanwhile, the materials of the nylon material can be also nylon EcoPAXX Q-Y, nylon EcoPAXX Q-FP4 and nylon EcoPAXX Q-150D, and the flexibility of the materials cannot be comparable with that of nylon pebax7233sp 01; the temple made of the nylon pebax7233sp01 double-color injection-molded material can be loosened after being rotated by 720 degrees, the temple is recovered as before, and has no obvious deformation and wrinkle problems, the temple made of the material is more comfortable to wear compared with other nylon materials, and the ultimate bonding effect of the EcoPAXX Q-Y as a nylon material and a PC material is not much different from that of the pebax7233sp01 nylon material and the PC material, and the nylon EcoPAXX Q-FP4 and the nylon EcoPAXX Q-150D are only suitable for some application environments with higher strength requirements due to insufficient flexibility.
In summary, the present invention solves, but is not limited to, the following problems: 1. through plasma cleaning, the problem that the nylon part is not well adhered or sticky with PC materials due to pollution caused by spraying a release agent when oil, water or plastic parts are demoulded in the adhering process is solved; 2. by UV modification, the problem that the nylon piece is not bonded with PC material due to adhesion and pollution of air, water vapor or oil gas in the process of storage or transportation is solved; 3. the structure of the bonding surface is improved through laser etching, and the problem that the raw material characteristics of a nylon piece contain components which are not easy to bond with a PC material and cause poor bonding is solved.
4. Solution cleaning treatment: the labor cost and the processing cost are increased; the solution may cause environmental pollution or increase the cost of the solution recovery treatment; causing occupational diseases for workers. 5. The nylon piece can be bonded with the PC material without any treatment, and the problems of unstable bonding or insufficient bonding strength and the like can be caused. 6. The problems of unstable bonding, weak bonding and the like also exist in single oven baking, plasma treatment and the like.
Virtual reality head-mounted display equipment, referred to as VR head-mounted VR glasses for short, is a product which utilizes a plurality of technology sets such as simulation technology, computer graphics man-machine interface technology, multimedia technology, sensing technology, network technology and the like, and is a brand-new man-machine interaction means created by means of computers and latest sensor technology. Many cheaper VR glasses on the market need with the help of the cell-phone, put into VR glasses with the cell-phone, download corresponding APP (have its own cell-phone software according to different brands) alright use in the cell-phone. Because the mobile phone is placed in the glasses, a user cannot operate the mobile phone, the mobile phone is operated by using a head control mode or by being provided with a Bluetooth handle.
Because VR eyes need often to dress and lift off, still be equipped with electronic components in its mirror leg inside, inconvenient integrated into one piece, so its mirror leg adopts an inboard mirror leg and an outside mirror leg bonding shaping generally, in order to guarantee its flexibility, rigidity and joint strength, so the invention also proposes to adopt the above-mentioned method to make:
the utility model provides an eyeglass frame, includes two mirror legs 1 and picture frame 2, two mirror leg 1 all with picture frame 2 is articulated, mirror leg 1 includes inboard mirror leg 12 and outside mirror leg 11, inboard mirror leg adopts elasticity nylon materials pebax7233sp01 and injection moulding, outside mirror leg adopts the PC material, the connection between inboard mirror leg and the outside mirror leg adopts the bonding method of the elasticity nylon materials and the PC material of above-mentioned arbitrary one. When the VR glasses are worn, one surface of the inner side glasses leg is directly contacted with the skin of a wearer, the wearer can directly feel the hardness of the materials, a silica gel layer needs to be arranged on the outer side of the inner side glasses leg, the other surface of the inner side glasses leg is bonded with the outer side glasses leg made of PC materials, so that the complete glasses leg is formed, the structure has certain strength, and the existing VR field is in a searching stage for material selection and a connection method of the glasses legs, so that the glasses frame can be perfectly applied to the VR glasses, the connection method enables the mechanical properties of the glasses legs to be good, and the technical field is perfectly attached.
A VR glasses comprises the above glasses frame and further comprises a display main body 3, wherein the display main body is fixedly arranged on the glasses frame.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Of course, the present invention may have other embodiments, and based on the embodiments, those skilled in the art can obtain other embodiments without any creative effort, and all of them are within the protection scope of the present invention.
Claims (10)
1. A method for bonding a nylon temple and a PC material side shell is used for bonding the width of a connecting plane between the nylon temple and the PC material side shell, wherein the width of the connecting plane is less than 0.8mm, and is characterized by comprising the following steps:
irradiating the nylon glasses legs through a UV lamp, and performing UV modification;
carrying out laser etching on the dispensing surface of the nylon glasses leg;
carrying out plasma cleaning on the dispensing surface of the nylon glasses leg;
dispensing glue on the dispensing surface of the nylon glasses legs, and bonding the nylon glasses legs with the PC material side shell.
2. The method for bonding an elastic nylon material and a PC material according to claim 1, wherein the step of UV modifying the nylon temple by irradiating the nylon temple with a UV lamp comprises:
the energy of the UV lamp was 90W, the distance of the UV lamp from the nylon temple was 3 mm, and the time for which the UV lamp irradiated the nylon temple was 15 minutes.
3. The method for bonding the elastic nylon material and the PC material according to claim 1, wherein the step of performing laser etching on the dispensing surface of the nylon temple comprises:
and carrying out laser etching on the glue dispensing surface of the nylon mirror leg through a laser etching machine, wherein the laser etching machine is an ultraviolet laser etching machine.
4. The method for bonding the elastic nylon material and the PC material according to claim 3, wherein the step of performing laser etching on the dispensing surface of the nylon temple comprises:
and forming a laser carving surface on the dispensing surface of the nylon glasses leg, wherein the dyne value of the laser carving surface is more than or equal to 38.
5. The method as claimed in claim 1, wherein the step of plasma cleaning the dispensing surface of the nylon temple and the step of dispensing on the dispensing surface of the nylon temple and bonding with the PC material side case further comprise the steps of:
and a predetermined time interval, wherein the duration of the predetermined time is in the range of 0-6 hours.
6. A method of bonding a resilient nylon material to a PC material according to claim 5, wherein in the step of spacing a predetermined time:
if the time length of the interval preset time is more than 6 hours, returning to the step: and carrying out plasma cleaning on the dispensing surfaces of the nylon glasses legs.
7. The bonding method of the elastic nylon material and the PC material according to claim 1, wherein the elastic nylon material adopted by the nylon temple is pebax7233sp01 or/and EcoPAXX Q-Y.
8. The method for bonding the elastic nylon material and the PC material according to claim 7, wherein the nylon temple is injection molded, the injection molding adopts two-color injection molding, and the two-color injection molding adopts pebax7233sp01 and silica gel respectively.
9. An eyeglass frame comprising two temples and a frame, wherein the two temples are hinged with the frame, the temples comprise an inner temple and an outer temple, characterized in that the inner temple comprises a nylon temple, the outer temple comprises a PC material side shell, and the connecting method between the inner temple and the outer temple adopts the bonding method of the nylon temple and the PC material side shell according to any one of claims 1-8.
10. VR glasses comprising a spectacle frame as claimed in claim 9, further comprising a display body, said display body being fixedly mounted to said spectacle frame.
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