CN112140598A - Spectacle frame body part and method for manufacturing spectacle frame body - Google Patents

Spectacle frame body part and method for manufacturing spectacle frame body Download PDF

Info

Publication number
CN112140598A
CN112140598A CN202010840192.2A CN202010840192A CN112140598A CN 112140598 A CN112140598 A CN 112140598A CN 202010840192 A CN202010840192 A CN 202010840192A CN 112140598 A CN112140598 A CN 112140598A
Authority
CN
China
Prior art keywords
base material
frame body
spectacle
spectacle frame
cushion layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010840192.2A
Other languages
Chinese (zh)
Inventor
宋飚
陈依帆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huacheng Optics Yingtan Co Ltd
Original Assignee
Huacheng Optics Yingtan Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huacheng Optics Yingtan Co Ltd filed Critical Huacheng Optics Yingtan Co Ltd
Priority to CN202010840192.2A priority Critical patent/CN112140598A/en
Publication of CN112140598A publication Critical patent/CN112140598A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B29C45/0055—Shaping
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
    • B29C45/14221—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure by tools, e.g. cutting means
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B29C45/0055—Shaping
    • B29C2045/0058—Shaping removing 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B29C2045/0077—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping removing burrs or flashes
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
    • B29C2045/14237—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure the inserts being deformed or preformed outside the mould or mould cavity
    • B29C2045/14245—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure the inserts being deformed or preformed outside the mould or mould cavity using deforming or preforming means outside the mould cavity

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Eyeglasses (AREA)

Abstract

The invention provides a method for manufacturing a spectacle frame body part and a spectacle frame body, belonging to the technical field of spectacle processing, and comprising the steps of engraving a plate type, carrying out primary surface treatment, injecting a cushion layer, then engraving and flattening, and the like. The cushion layer and the spectacle frame body are integrated, so that the weight, the volume, the shape and the like of the original spectacle legs can be prevented from being damaged, the original design of the spectacle frame is kept, meanwhile, the oppression caused by the cushion layer structure in the prior art is avoided, and the wearing comfort is ensured. The manufacturing method of the invention has simple structure and is convenient to implement.

Description

Spectacle frame body part and method for manufacturing spectacle frame body
Technical Field
The invention relates to the technical field of glasses processing, in particular to a glasses frame part and a manufacturing method of a glasses frame body.
Background
The glasses comprise a glasses frame and lenses, wherein the glasses frame comprises a frame body and two parts of a supporting blade, and the frame body can be further divided into a glasses ring and glasses legs for mounting the lenses. An ideal pair of spectacles is required to achieve clear vision and also to be comfortable when worn. The inner side surfaces of the glasses legs of the glasses frame are pressed against the back of the ears of a human body, so that the scalp at the back of the auricle is subjected to larger pressure, and the scalp is easily sore and uncomfortable to wear.
The scalp at the back of the auricle is easily stressed for two reasons: firstly, the glasses legs are hard and have large oppression force on the back of the ears; secondly, the angle and the orientation of the glasses legs are not matched with the head of a user. The latter can be adjusted during use, but is limited by the adjustment range, and can only alleviate the phenomenon to a certain extent.
In addition, with the development of the decoration of the glasses, whether the glasses are fashionable in appearance and beautiful in color is also becoming an important standard. In current processing, glasses frame's processing mainly includes two kinds of types of injection moulding and panel processing, and wherein the injection moulding process is simple, more be suitable for production, and the material is various, mainly is applied to the bottom product. The board is mainly applied to high-end products due to the characteristics of rich and natural color, various grain changes and the like. However, the sheet material used for processing the sheet material is hard, so that the sheet material is not comfortable in use.
Therefore, a cushion layer made of soft material such as silica gel is added on the inner side of the earpiece, for example, a glasses leg screwless hinge catapult disclosed in chinese patent No. CN201821784465.0, which prevents the glasses leg from being pressed too heavily to affect the use when using the soft cushion mounted on the surface of the earpiece. However, while the cushion layer may improve the stiffness of the contact surface to alleviate discomfort, the cushion layer further increases the weight and bulk at the temples, causing greater compression of the scalp at the back of the pinna.
Based on this, the present application is proposed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a part of a glasses frame body comfortable to wear and a manufacturing method of the glasses frame body, which can reduce the pressure effect on the scalp at the back of an auricle, relieve the phenomena that the materials of the glasses legs are hard and the scalp or the head contacted after long-term wearing is painful in the prior art, and ensure that the glasses have the characteristics of attractive appearance and comfortable wearing.
In order to achieve the above object, the method for manufacturing the spectacle frame body part of the present invention comprises the steps of:
engraving a plate type: processing a base material with the outline of a component in the spectacle frame body according to the designed size data, wherein the size of the base material is 1-3 mm larger than the actual size; meanwhile, in the thickness direction of the base material, a shallow groove is processed on the partial surface of the base material contacting with the human skin or the side surface of one part of the base material contacting with the human skin according to the shape of the base material to form a primary processing base material.
Primary surface treatment: and grinding and polishing the surface of the primary processing base material.
And (3) injection molding of a cushion layer: placing the base material into a mold and fixing, injecting an elastic material or a flexible material with the hardness lower than that of the base material into a groove on the base material in the mold in a molten state, cooling the elastic material or the flexible material to form a cushion layer, and integrating the cushion layer and the base material into a whole to obtain a primary finished product.
And (5) fine carving: and taking the primary product out of the die, and removing burrs and bulges on the surface of the primary product in a fine carving mode.
Leveling: the outer surface of the injection layer and the surface of the junction of the injection layer and the plate are smooth and flat, and the spectacle frame body part with high precision and excellent damage resistance is obtained.
In the above steps, the step of engraving the plate type is to provide the outline of the component with the spectacle frame body and the preliminarily formed basic plate, but at the same time, the processing process is controlled intentionally to leave a large error, so that the size of the base material of the outline of the component with the spectacle frame body is slightly larger than a set size, and a cushion is left for each subsequent processing step, so as to realize finish machining.
The matting effect in the engraving step is as follows: because the base material has been preliminarily processed and formed and the dimension error is controlled within a range, as a basic error, it can be used for superposing with other errors in subsequent processing engineering, thereby concentrating and amplifying the processing error. By amplifying the errors, the situations of low precision and large errors of the final finished product caused by the fact that the errors are dispersed in different stages and are difficult to find can be avoided, and the processing precision of the final finished product can be improved.
In the steps, the primary surface treatment step aims to preliminarily eliminate overlarge processing errors generated in the previous step in a grinding mode, and smooth the surface of the base material in a polishing mode, so that the precision of subsequent processing is guaranteed. On one hand, the rough manufacturing method of polishing is skillfully utilized, the machining errors which are concentrated and superposed in the steps are effectively and massively polished, and compared with the prior art that various high-precision devices are adopted to remove and adjust angles layer by layer, the polishing mode is faster in speed and higher in efficiency. Moreover, the existing polishing equipment on the market can polish comprehensively and uniformly, has a simple error eliminating mode, does not need a complex structure or other auxiliary equipment, and can greatly reduce the production cost.
In addition, the base material is polished in the primary surface treatment step, so that the surface of the base material is smooth, the base material is conveniently and tightly combined with a subsequent injection molding material, the connection strength between the cushion layer and the base material is improved, and the two parts of the produced earpiece are prevented from being easily torn, and have certain damage resistance.
In the above steps, the step of injection molding the cushion layer aims to arrange the cushion layer with the hardness lower than that of the base material on the inner side of the earpiece in an injection molding mode, and the cushion layer is closely connected with the base material and inseparable by virtue of the injection molding processing mode, so that the damage resistance of the earpiece is improved.
The high connection performance between the cushion layer and the base material in the step depends on the roughness of the surface of the base material after the primary surface treatment, the base material after the primary surface treatment is macroscopically smooth, but certain roughness still exists in details, and the combination of the cushion layer and the base material is facilitated. And on the other hand, on the degree of fit of the cushion material to the substrate material itself. On the other hand, the precision of the base material processed in the previous step is determined, and only on the premise that the processing error of the base material processed in the previous step is within 0.5mm, on the premise, the base material is positioned more accurately in the injection molding process, and the connection between the cushion layer and the base material cannot be reduced due to the fact that glue overflows due to position deviation in the injection molding process.
In the above steps, the purpose of the secondary fine engraving step is two: and firstly, removing projections such as barbs, burrs and the like in the injection molding processing process through a secondary finishing carving process to ensure that the surface of the earpiece is smooth. And secondly, strictly controlling the size data of the earpiece through a secondary fine engraving process, and reducing the processing error.
In the steps, scratches on the surface of the glasses leg are removed smoothly, and pockmarks on part of the surface of the glasses leg caused by injection molding are removed, so that the brightness of the plate is improved to the maximum extent, and the glasses leg is comfortable to wear.
Further, the cushion layer material is the same as the base material and is a material with broken molecular chains.
Furthermore, a positioning bulge used for realizing positioning by matching with a mold is processed on the side surface of the base material or the outer surface of the base material in the engraving and molding step; the positioning bumps are removed in a re-engraving step.
Further, before the injection molding step, after a surface treatment, the following steps are performed: secondary fine carving: and (4) carrying out fine engraving on the primary processing base material after the surface treatment, and controlling the processing error within 0.1mm to form the plate to be subjected to injection molding.
Further, the width of the groove is adapted to the substrate.
Further, the spectacle frame body part is a spectacle arm and/or a spectacle ring and/or a nose support.
Further, when the component is the earpiece, the following step of copper needle punching is carried out between the engraving and surface treatment step: and (4) heating the base material, and driving a copper needle into the rough machined product.
In the above steps, the copper needle punching step aims to punch the copper needle into the preliminarily formed base material, so as to enhance the overall structural strength of the base material and ensure the subsequent processing. The base material is not easy to bend or deform in engineering
The copper needle is arranged between the engraving plate type and the primary surface treatment step because: in beating the copper needle, because the base material has the primary processing take shape, because the copper needle need squeeze into the middle part of panel, when adopting the center location method to fix a position, the position that the copper needle was squeezed into can not be influenced to 1 ~ 3 mm's in the preceding step machining error, avoids because the inaccurate copper needle that leads to of location squeezes into crooked, influence the travelling comfort of using and wearing.
On the other hand, when the base material is heated and the copper needle is driven, the base material expands to a certain degree, and the expansion generated at the certain degree is superposed with the machining error of 1-3 mm in the previous step, so that the whole size of the initially machined base material is larger than the set size by 1.1-4.5 mm. Therefore, the error in the present step and the machining error in the above step can be collectively handled so that the errors can be collectively removed in a large amount at one time in one surface treatment, and the machining error which cannot be handled or is difficult to handle due to the accuracy of the machining equipment can be solved within the accuracy range of the machining equipment, so that the machining accuracy of the final product can be improved by adopting the above machining procedure even if the equipment used is the machining equipment with low accuracy.
Of course, the processing error is concentrated, so that the subsequent processing steps are simplified, and the subsequent processing steps are convenient to adjust. Therefore, the step lays a foundation for further subsequent processing and lays a high-precision foundation for the subsequent processing.
In addition, the primary surface treatment of the polishing mode is set, and the method is characterized in that in the steps of engraving and molding and copper needle punching, the accumulated amount of the processing error is large through intentional reservation of errors and smart amplification of errors, the thickness of the material consumed by polishing in the step is enough, and the situation that the size of the base material is smaller than the set size due to transitional processing cannot occur.
The invention also aims to provide a method for manufacturing the spectacle frame body, the spectacle frame body comprises a spectacle ring, spectacle legs and a nose support, and the spectacle ring and/or the spectacle legs and/or the nose support are processed by the method for manufacturing the spectacle frame body part in the steps.
The manufacturing method of the glasses frame body further comprises the following steps:
assembling: and the connecting end of the glasses leg is hinged to the outer side of the glasses ring, and the nose support is fixedly connected to the inner side of the glasses ring and is positioned on the inner side of the glasses ring and integrally formed with the glasses ring.
The manufacturing method of the glasses frame body further comprises the following steps:
and (3) re-polishing: and (3) putting the assembled spectacle frame body into polishing equipment for polishing, thus obtaining the spectacle frame body with high precision and excellent damage resistance.
The invention has the following beneficial effects:
firstly, the invention provides a spectacle frame body which is soft in surface and more suitable for wearing by cutting a plate and matching with a processing mode of injection molding to form a cushion layer, the spectacle frame body enables the cushion layer and a spectacle frame body part to be integrated, the weight, the volume, the shape and the like of the original spectacle frame body are not damaged, the original design of a spectacle frame is kept, the corresponding design which accords with the human engineering in the original design is prevented from being damaged, meanwhile, the oppression caused by the cushion layer structure in the prior art is also avoided, the oppression is reduced, and the wearing comfort is ensured. The manufacturing method of the invention has simple structure and is convenient to implement.
The invention has the advantages that the cushion layer and the base material are mutually connected and inseparable by a processing mode of cutting a plate and forming the cushion layer by matching injection molding, so that the cushion layer and the base material have extremely high connection strength and conformability, and the cushion layer and the base material are always connected and kept in a tightly connected state no matter how the spectacle frame body is bent in the using process; in addition, the surface of the spectacle frame body is smooth and seamless, and the cushion layer and the base material are difficult to separate, so the spectacle frame body has high damage resistance.
And thirdly, the error of the final spectacle frame body finished product can be controlled within 5 threads by specific processing steps and strictly controlling the processing error in each processing procedure, and the requirements of high-standard areas such as Europe, America and the like are met.
Fourthly, the invention combines the plate and the injection molding processing mode, not only can keep the characteristics of natural, rich and high color of the plate type glasses frame body, but also can utilize the injection molding mode to form the color and the pattern which are different from those of other parts on the surface of the glasses frame body where the cushion layer is positioned and contacted with the skin of the human body, thereby playing the role of further beautifying the glasses legs.
Drawings
FIG. 1 is a schematic view of a process according to an embodiment of the present invention.
FIG. 2 is a schematic view of the cushion layer covering the bezel of the present invention.
Fig. 3 is a schematic view of the nose pad covered with a cushion layer according to the present invention.
Reference numerals: 100-substrate, 200-copper needle, 300-lower die, 310-upper die, 400-cushion layer, 510-lens ring body, 520-first inner cushion layer, 600-lens, 700-nose support, 710-second inner cushion layer; 110-groove, 120-positioning projection, 101-outer surface, 102-surface in contact with human skin, 311-injection hole.
Detailed Description
The invention provides a part of a spectacle frame body and a manufacturing method of the spectacle frame body, which are used for processing a spectacle leg with a soft surface contacting with human skin, so that the surface contacting with the human skin of a user has higher flexibility and is comfortable to wear.
In particular, the surface in contact with the skin of the human body according to the present invention means a surface inside the eyeglasses which comes into contact with the human body when the eyeglasses are worn and used, and a side surface adjacent to the side surface and having the temple facing downward in the use state, and may further include a partial surface outside the eyeglasses adjacent to the side surface facing downward. The inner surface, the downwardly facing side, and the outer portion of the surface, as described above, are all in contact with the user during use of the eyewear. The outer surface 101 is a portion or all of the surface that is located on the outside of the lens.
The following detailed description is to be read in connection with specific embodiments.
Embodiment 1 referring to fig. 1, the present embodiment provides a method for manufacturing an earpiece, including the following steps:
(1) engraving a plate type: the base material 100 with the outline of the earpiece is processed according to the designed dimension data, the base material 100 is divided into a front section for connecting a spectacle frame and a rear section which is in contact fit with the skin of a human body, shallow grooves are arranged on the inner surface and the bottom surface of the rear section of the base material 100 according to the shape of the base material 100 in the thickness direction of the base material 100, and the shallow grooves on the inner surface and the bottom surface of the rear end of the base material 100 can be communicated with each other.
Simultaneously, the upward side of the substrate 100 in the finishing molding step is provided with a positioning protrusion 120 for positioning in cooperation with the mold. The positioning protrusion 120 is used to assist the substrate 100 fixed in the mold, and prevent the substrate 100 from moving due to the impact of the injection molding material during the injection molding process, thereby preventing the excessive glue caused by the displacement, and further preventing the cushion layer 400 from being tightly combined with the substrate 100 or causing a processing error.
In the fine engraving process, the size of the base material 100 needs to be controlled to be larger than the actual size by 1-3 mm, so that the subsequent fine machining can be conveniently carried out.
The purpose of this step is to provide a preliminarily shaped base sheet with the earpiece profile for subsequent processing. In another embodiment, all the inner surface and the bottom surface of the substrate 100, even the edge adjacent to the outer surface 101 and the bottom surface of the substrate 100, may be formed with the communicating shallow grooves, and the specific positions of the shallow grooves and the size of the shallow grooves may be selected according to actual design and practical application, and are not limited to the above-mentioned examples of the embodiment.
(2) And (3) copper needle punching 200: the substrate 100 is heated, and a copper needle 200 is driven into the earpiece preform to form the preform substrate 100.
The purpose of this step is to drive the copper pin 200 into the preliminarily formed base material 100, thereby avoiding the occurrence of an excessive machining error of the temple due to the copper pin 200 after injection molding. Meanwhile, in the embodiment, the copper needle 200 is arranged in the second sequence, and the machining error is amplified by combining the error generated by the expansion of the substrate 100 with the specially reserved error allowance in the finishing impression, so that the subsequent machining error is reduced, and the subsequent machining precision is improved conveniently.
(3) Primary surface treatment: the surface of the as-machined base material 100 is ground and polished by a conventional grinding and polishing machine used for eyeglass processing.
The purpose of this step is to preliminarily eliminate the excessive machining error generated in the first two steps by means of grinding, and to make the surface of the substrate 100 smooth by means of polishing, so as to provide guarantee for maintaining the precision of the subsequent machining. Of course, the implementation of the purpose of the step depends on the processing content of the step (1) and the step (2), which enlarges the processing error, reduces the processing difficulty and facilitates the realization of the processing purpose.
(4) Injection molding of the cushion layer 400: the base material 100 is placed in the lower mold 300, the positioning protrusion 120 is engaged with the positioning groove 110 of the lower mold 300 to fix and position the base material, and the upper mold 310 is covered on the lower mold 300. The upper mold 310 has an injection hole 311 on the surface thereof, and the injection hole 311 communicates with the space where the upper mold 310 and the lower mold 300 are closed. After the upper mold 310 and the lower mold 300 are relatively fixed, an elastic material or a flexible material having a hardness lower than that of the base material 100 is injected into the groove 110 of the base material 100 in the mold in a molten state, and after the elastic material or the flexible material is cooled, a cushion layer 400 is formed, and the cushion layer 400 and the base material 100 are integrally formed, so that a primary product is obtained.
In this embodiment, the cushion layer 400 is made of the same material as the base material 100, and has broken molecular chains, such as epoxy resin or acetate fiber.
The purpose of this step is to directly form the cushion layer 400 closely connected to the substrate 100 on the groove 110, and simultaneously, the groove 110 structure is utilized to keep the surface of the cushion layer 400 aligned with the surface of the substrate 100, so that the damage resistance of the final product is improved through injection molding, and simultaneously, the surface of the earpiece is smooth and seamless, thereby greatly improving the difficulty of peeling the cushion layer 400 from the substrate 100, and improving the damage resistance performance.
(5) And (5) fine carving: after the primary product is taken out of the mold, the burrs and thorns on the surface of the primary product are removed in an engraving process, and the positioning protrusions 120 are also removed in the engraving process.
The purpose of the step is to ensure that the surface of the earpiece is smooth, has no bulge, no rough edge and no barb through the fine carving process, accords with the production standard and ensures that the earpiece has good aesthetic property; in addition, the step further strictly controls the size data of the earpiece, and further controls the processing error within 7 filaments.
(6) Leveling: the outer surface 101 of the injection layer and the surface of the junction of the injection layer and the plate are smooth and flat. Through the steps, the spectacle leg with high precision and excellent damage resistance can be obtained.
Embodiment 2 this example provides a method for manufacturing an earpiece, including the following steps:
(1) engraving a plate type: processing a base material 100 with the outline of the earpiece according to the designed size data, wherein the size of the base material 100 is 1-3 mm larger than the actual size; meanwhile, in the thickness direction of the substrate 100, grooves 110 are processed on the surface thereof contacting the human skin in accordance with the shape of the substrate 100.
(2) And (3) copper needle punching 200: the substrate 100 is heated, and a copper needle 200 is driven into the earpiece preform to form the preform substrate 100.
(3) Primary surface treatment: the surface of the as-machined substrate 100 is ground and polished. The primary surface treatment adopts the traditional grinding and polishing equipment.
(4) Secondary fine carving: and (3) carrying out fine carving on the primary processing base material 100 after the surface treatment to enable the size of the primary processing base material to be larger than a set size and within 1mm, and forming the plate to be subjected to injection molding.
(5) Injection molding of the cushion layer 400: the base material 100 is placed in a mold and fixed, then an elastic material or a flexible material having a hardness lower than that of the base material 100 is injected in a molten state into the groove 110 on the base material 100 in the mold, and after cooling, a cushion layer 400 is formed, and the cushion layer 400 and the base material 100 are integrated into a whole, thus obtaining a primary product.
(6) And (5) fine carving: and taking the primary product out of the die, and removing burrs and bulges on the surface of the primary product in a fine carving mode.
(7) Leveling: the outer surface 101 of the injection layer and the surface of the junction of the injection layer and the plate are smooth and flat, and the spectacle leg with high precision and excellent damage resistance is obtained.
The difference between this embodiment and embodiment 1 is that, in this embodiment, a "secondary finishing carving" step is provided between the "primary surface treatment" step and the "injection molding cushion layer 400" step, and the "secondary finishing carving" step aims to control the size of the earpiece before injection molding in advance, so that, in the subsequent injection molding processing and the secondary finishing carving process, the substrate 100 with an error within 1mm is used as a processing basis for processing, thereby reducing the error range of the subsequent processing step, and simultaneously, the problem that the processing error which needs to be eliminated during the secondary finishing carving is too large and the processing error of the secondary finishing carving is too large reversely caused is also facilitated, so that processing equipment with higher processing precision is conveniently selected for processing, the requirement on the processing range is reduced, and the selection and the processing are facilitated.
The processing error of the earpiece obtained by the method of the embodiment can be controlled within 7 filaments, which is better than the method provided by the embodiment 1.
Referring to the lowermost part of fig. 1, it should be additionally noted that the substrate 100 finished by the finishing and shaping steps of examples 1 and 2 is a straight substrate 100, and after going through the steps of examples 1 and 2, and before acceptance, the end of the temple needs to be bent at a certain angle by the existing bending equipment to form a hanging ear structure, so as to be suitable for use. Of course, the linear substrate 100 is used for processing in the whole process of the embodiment 1 and the embodiment 2, and is bent before acceptance, so that the characteristic that the linear structure is easier to adjust can be utilized, the processing error in each processing process is reduced, and the processing precision is ensured.
Embodiment 3 this embodiment provides a method for manufacturing an eyeglass rim, which has substantially the same processing steps as those of embodiments 1 and 2, and specifically includes the following steps:
(1) engraving a plate type: the base material 100 having the contour of the rim is processed according to the designed dimensional data, and the shallow groove is processed on the surface of the base material 100 contacting with the human skin according to the shape of the base material 100 in the thickness direction of the base material 100. Simultaneously, the upward side of the substrate 100 in the finishing molding step is provided with a positioning protrusion 120 for positioning in cooperation with the mold. In the fine engraving process, the size of the base material 100 needs to be controlled to be larger than the actual size by 1-3 mm, so that the subsequent fine machining can be conveniently carried out.
The purpose of this step is to provide a primary shaped base sheet having the outline of the rim of the eyeglass lens for subsequent processing. The expression "on the surface in contact with the skin of a human body" in the present embodiment should be understood in an expanded sense: in one embodiment, the nose pad is integrally formed with the lens ring, which is a part of the lens ring, in which case the above concept of course includes a portion of the nose pad that is in substantial contact with the skin of the human body, and other portions of the nose pad that are not in direct contact with the human body when worn, but are connected to the substantial contact portion, or can affect the cushioning effect of the cushion layer 400. In addition, for aesthetic reasons and for the flexibility of the whole of the eyeglasses, in another embodiment, the whole or part of the surface of the side of the rim of the eyeglasses facing the eyeglasses of the human body can be provided with a cushion layer 400 during the use of the eyeglasses, as shown in fig. 2.
(2) Primary surface treatment: the surface of the as-machined base material 100 is ground and polished by a conventional grinding and polishing machine used for eyeglass processing.
(3) Injection molding of the cushion layer 400: the base material 100 is placed in the lower mold 300, the positioning protrusion 120 is engaged with the positioning groove 110 of the lower mold 300 to fix and position the base material, and the upper mold 310 is covered on the lower mold 300. The upper mold 310 has an injection hole 311 on the surface thereof, and the injection hole 311 communicates with the space where the upper mold 310 and the lower mold 300 are closed. After the upper mold 310 and the lower mold 300 are relatively fixed, an elastic material or a flexible material having a hardness lower than that of the base material 100 is injected into the groove 110 of the base material 100 in the mold in a molten state, and after the elastic material or the flexible material is cooled, a cushion layer 400 is formed, and the cushion layer 400 and the base material 100 are integrally formed, so that a primary product is obtained.
In this embodiment, the cushion layer 400 is made of the same material as the base material 100, and has broken molecular chains, such as epoxy resin or acetate fiber.
(5) And (5) fine carving: after the primary product is taken out of the mold, the burrs and thorns on the surface of the primary product are removed in an engraving process, and the positioning protrusions 120 are also removed in the engraving process.
(6) Leveling: the outer surface 101 of the injection layer and the surface of the junction of the injection layer and the plate are smooth and flat. Through the steps, the glasses rim with high precision, high elasticity and excellent damage resistance can be obtained.
Further, before the injection molding step, after a surface treatment, the following steps are performed:
secondary fine carving: and (3) carrying out fine carving on the primary processing base material 100 after the surface treatment to enable the size of the primary processing base material to be larger than a set size and within 0.1mm, and forming a plate to be subjected to injection molding.
Embodiment 4 as shown in fig. 3, in this embodiment, the nose pad separated from the mirror ring can also be manufactured by using the manufacturing method in embodiment 3, and the specific steps are substantially the same as those in embodiment 3 and are not described again.
Embodiment 5 this embodiment provides a method for manufacturing an eyeglass frame, where the eyeglass frame includes a rim, temples, and a nose pad, at least one of the rim, the temples, and the nose pad is manufactured by the manufacturing method in embodiment 3, embodiment 1, embodiment 2, and embodiment 4, and the assembling process of the rim, the temples, and the nose pad is as follows: the connecting ends of the glasses legs are hinged to the outer side of the glasses ring, and the nose supports are fixedly connected to the inner side of the glasses ring or the nose supports are positioned on the inner side of the glasses ring and are integrally formed with the glasses ring.
By providing the cushion layer 400 on the spectacle frame body of any one or more of the spectacle ring, the spectacle legs and the nose pads, the spectacle frame can effectively relieve the pain of the scalp or the head which is contacted after long-term wearing due to the hard material of the spectacle legs, and can make the spectacles beautiful and comfortable to wear by combining the characteristics of the spectacle frame body obtained by processing the plates.
In addition to the above embodiments, in order to keep the surface of the eyeglass frame smooth and seamless without joint marks, the assembled eyeglass frame may be put into a polishing device for re-polishing.
Through the steps, the spectacle frame body with high precision and excellent damage resistance is obtained, the surface of the spectacle frame body is smooth and does not protrude, the hardness of the cushion layer 400 is lower than that of the base material 100, the spectacle frame body has high damage resistance and precision, is convenient to process and comfortable to wear, and can meet the industrial standard and be used in most occasions.
In particular, after many actual tests, the inventors found that when two common materials are bonded by a plate material and an injection molding method, since the material used for the plate material and the material used for the injection molding have their characteristics, the degree of bonding at the joint of the obtained finished product is poor, and the cushion layer 400 is easily separated from the base material 100 when the spectacle frame body is bent by applying an external force. In addition, in the processing process, the two materials have different thermal expansion coefficients, so that the processing error is too large, the processing target is difficult to realize, and the actual market demand cannot be met.
Therefore, through research and development, the inventor finds that when the cushion layer 400 is injected into the groove 110 by injection molding, the molten plastic material with the same material as the base material 100 and broken molecular chains is the same as the base material 100, and therefore, during injection molding, the cushion layer 400 can be tightly adhered to the groove bottom plane of the groove 110 of the base material 100 by using the characteristic, so that tight connection is realized, the degree of combination between the cushion layer 400 and the base material 100 is greatly improved, and the cushion layer 400 and the base material 100 cannot be separated under bending acting force. In addition, because the materials used by the cushion layer 400 and the base material 100 are the same in nature, the expansion coefficient of the cushion layer 400 and the volume change of the cushion layer after cooling are almost the same in the injection molding process, the requirements for a mold used for injection molding can be reduced, the production difficulty can be reduced, a gap generated by cooling can be avoided between the cushion layer 400 and the groove 110, the cushion layer 400 and the groove 110 can be seamlessly attached, and the high-requirement use requirement can be met; and also aligns the pad layer 400 with the outer surface 101 of the groove 110, reducing machining errors.

Claims (10)

1. A method for manufacturing spectacle frame components is characterized by comprising the following steps:
engraving a plate type: processing a base material with the outline of a component in the spectacle frame body according to the designed size data, wherein the size of the base material is 1-3 mm larger than the actual size; meanwhile, in the thickness direction of the base material, a shallow groove is processed on the partial surface of the base material contacting with the human skin or the side surface of one part of the base material contacting with the human skin according to the shape of the base material to form a primary processing base material;
primary surface treatment: grinding and polishing the surface of the primary processing base material;
and (3) injection molding of a cushion layer: placing the base material into a mold and fixing, injecting an elastic material or a flexible material with the hardness lower than that of the base material into a groove on the base material in the mold in a molten state, cooling the elastic material or the flexible material to form a cushion layer, and integrating the cushion layer and the base material into a whole to obtain a primary finished product;
and (5) fine carving: taking the primary product out of the die, and removing burrs and convex thorns on the surface of the primary product in a finishing carving mode;
leveling: the outer surface of the injection molding layer and the surface of the junction of the injection molding layer and the plate are smooth and flat, and the spectacle frame body part is obtained.
2. The method of making an eyeglass frame component as set forth in claim 1, wherein: the cushion layer material is the same as the base material and is a material with broken molecular chains.
3. The method of making an eyeglass frame component as set forth in claim 1, wherein: in the step of fine engraving and molding, a positioning bulge for realizing positioning by matching with a mold is processed on the side surface of the base material or the outer surface of the base material; the positioning bumps are removed in a re-engraving step.
4. The method of making an eyeglass frame component as set forth in claim 1, wherein: before the injection molding step, after a surface treatment, the following steps are performed: secondary fine carving: and (4) carrying out fine carving on the primary processing base material after surface treatment, and controlling the processing error within 0.1 mm.
5. The method of making an eyeglass frame component as set forth in claim 1, wherein: the width of the groove is adapted to the base material.
6. The method of making an eyeglass frame component as set forth in claim 1, wherein: the spectacle frame body part is a spectacle leg and/or a spectacle ring and/or a nose support.
7. The method of making an eyeglass frame component as set forth in claim 1, wherein: when the component is the earpiece, the following steps are carried out between the step of engraving the plate type and the step of primary surface treatment:
copper needle punching: and (4) heating the base material, and driving a copper needle into the rough machined product.
8. A method for manufacturing a spectacle frame body is characterized in that: the spectacle frame body comprises a spectacle ring, spectacle legs and a nose support, wherein the spectacle ring and/or the spectacle legs and/or the nose support are processed by the manufacturing method of the spectacle frame body part according to any one of claims 1 to 4.
9. The method of manufacturing a spectacle frame body according to claim 8, wherein: further comprising the steps of:
assembling: and the connecting end of the glasses leg is hinged to the outer side of the glasses ring, and the nose support is fixedly connected to the inner side of the glasses ring and is positioned on the inner side of the glasses ring and integrally formed with the glasses ring.
10. The method of manufacturing an eyeglass frame as set forth in claim 9, wherein: further comprising the steps of:
and (3) re-polishing: and (3) putting the assembled spectacle frame body into polishing equipment for polishing, thus obtaining the spectacle frame body with high precision and excellent damage resistance.
CN202010840192.2A 2020-08-19 2020-08-19 Spectacle frame body part and method for manufacturing spectacle frame body Pending CN112140598A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010840192.2A CN112140598A (en) 2020-08-19 2020-08-19 Spectacle frame body part and method for manufacturing spectacle frame body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010840192.2A CN112140598A (en) 2020-08-19 2020-08-19 Spectacle frame body part and method for manufacturing spectacle frame body

Publications (1)

Publication Number Publication Date
CN112140598A true CN112140598A (en) 2020-12-29

Family

ID=73888934

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010840192.2A Pending CN112140598A (en) 2020-08-19 2020-08-19 Spectacle frame body part and method for manufacturing spectacle frame body

Country Status (1)

Country Link
CN (1) CN112140598A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103624914A (en) * 2013-10-16 2014-03-12 王宏晶 Production method for glasses with secondary-injected nose support and structure of glasses

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103624914A (en) * 2013-10-16 2014-03-12 王宏晶 Production method for glasses with secondary-injected nose support and structure of glasses

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
徐佩弦: "《塑料件的设计》", 30 June 2001, 中国轻工业出版社 *

Similar Documents

Publication Publication Date Title
US8061836B2 (en) Method of manufacturing spectacles of the single-lens, wrap-around type and spectacles produced by the method
US4204750A (en) Method of custom fitting eyeglass frames and article formed thereby
KR20120003995A (en) A glasses frame of adjustable nose pad
CN112140598A (en) Spectacle frame body part and method for manufacturing spectacle frame body
US20140185002A1 (en) Eyewear and eyewear frames with contoured temples
US7407280B2 (en) Lens for sunglasses, method for producing the same, and production apparatus therefor
JP2007058189A (en) Base plate for manufacturing front frame of spectacles and method for manufacturing front frame of spectacles
US20220238953A1 (en) Battery cover and method for manufacturing the battery cover
JP6560066B2 (en) Eyeglass frame temple angle adjustment structure and eyeglass frame end piece
CN113841945A (en) Comfortable and shapeable bra and manufacturing method thereof
CN211293486U (en) Glasses frame with adjustable glasses leg length
KR101179157B1 (en) glasses frame product method
US20030137634A1 (en) Method and kit for making ophthalmic lenses
CN201421527Y (en) Polarized lens with double curvature
CN207440441U (en) A kind of embedded silica gel nose pad and the spectacle frame with the silica gel nose pad
JP3108605U (en) Eyeglass lenses
CN219225226U (en) Picture frame structure of adjustable nose support
JP3035664U (en) Glasses
TWM534829U (en) Adjustable nose pad structure
TWI834213B (en) Temple weight structure and glasses using it
KR200203211Y1 (en) Bows of a pairs of spectacles
JP2024018967A (en) Glasses with elastic temples and manufacturing method thereof
CN212302129U (en) Titanium-nickel shape memory alloy glasses
KR200286676Y1 (en) A frame of a pair of spectacles
KR101187819B1 (en) Frame of spectacles with emproved shape stability

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20201229

RJ01 Rejection of invention patent application after publication