Method for manufacturing flexible air bag nose pad of glasses

Abstract

The invention provides a method for manufacturing a flexible air bag nose pad of glasses, and relates to the technical field of glasses accessories, the method comprises the following steps: S1, using a first mold to manufacture a support piece, and taking out the support piece; s2, a lower shell is manufactured, specifically, the manufactured supporting piece is placed on a second lower mold of a second mold, the lower shell with supporting force is formed through mold closing injection molding, the first end face of the lower shell is connected with the supporting piece, and a second upper mold is removed; s3, an upper shell capable of deforming is formed in the third mold through injection molding, and the third lower mold is removed; s4, the second end face of the lower shell is filled with adhesive, a third upper mold is installed on a second lower mold to form a whole, the position, where the upper shell is installed, of the upper mold of the third mold is the same as the position, where the lower shell is installed, of the lower mold of the second mold, so that the upper shell is buckled on the lower shell; s5, the upper shell and the lower shell are bonded together through heating in a heating furnace; and S6, cooling is conducted, the third upper mold is removed, and the nose pad is taken out.

Description

Technical Field

[0001] The invention relates to the technical field of eyeglass accessories, in particular to a method for manufacturing a flexible air bag nose pad for eyeglasses. Background Art

[0002] Glasses generally require nose pads for support. In the prior art, there is an airbag nose pad. When manufacturing the airbag nose pad, it is usually first made into a flat airbag, and then an air injection hole is set on the flat airbag. People fill gas into the inside through the air injection hole to form an airbag. However, air leakage may occur during use, forming a hard nose pad, which increases the pressure on the bridge of the human nose. Summary of the invention

[0003] The purpose of the present invention is to provide a method for manufacturing a flexible airbag nose pad for glasses, so as to solve the technical problem that the airbag nose pad in the prior art needs to be provided with a through hole for ventilation, resulting in poor airbag support and increased pressure on the bridge of the nose. The preferred technical solution among the many technical solutions provided by the present invention can produce many technical effects as described below.

[0004] To achieve the above object, the present invention provides the following technical solutions: The present invention provides a method for manufacturing a flexible airbag nose pad for glasses, comprising: S1, using a first mold to manufacture a support member, and taking out the support member from the first mold; S2, manufacturing the lower shell: the support member is placed on the second lower mold of the second mold, the second upper mold of the second mold and the second lower mold are molded together to form the lower shell with supporting force by injection molding, and the first end surface of the lower shell is connected to the support member, and the second upper mold is removed; S3, manufacturing an upper shell: forming the deformable upper shell on a third mold by injection molding, and removing a third lower mold of the third mold; S4, applying adhesive to the second end surface of the lower shell, and installing the third upper mold of the third mold with the upper shell on the second lower mold with the lower shell to form a whole, wherein the position where the upper shell is installed on the third upper mold is the same as the position where the lower shell is installed on the second lower mold, so that the upper shell is buckled on the lower shell; S5, heating: placing the whole formed by the second lower mold and the third upper mold in a heating furnace for heating, so that the upper shell and the lower shell are bonded together; S6, cooling, removing the third upper mold, and taking out the nose pad.

[0005] Preferably, in S2, after removing the second upper mold, a pattern layer is provided on a side of the lower shell away from the support member.

[0006] Preferably, the dimensions of the second mold in the x and y directions are equal to the dimensions of the third mold in the x and y directions.

[0007] Preferably, a first groove is provided on the end surface of the second lower mold, and the first groove supports the support member.

[0008] Preferably, the lower shell and the support member are made of the same material, so that the support member and the lower shell form a whole.

[0009] Preferably, a second guide assembly is provided between the second upper mold and the second lower mold, a third guide assembly is provided between the third upper mold and the third lower mold, and the second guide assembly and the third guide assembly are the same in position and size.

[0010] Preferably, the second guide assembly and the third guide assembly include a guide column and a guide sleeve, the guide column is arranged on the second upper mold and the third upper mold, and the guide column is arranged on the second lower mold and the third lower mold.

[0011] Preferably, the temperature in the heating furnace is 115-125 degrees Celsius.

[0012] The technical solution provided by this application document includes the following beneficial effects: The present invention provides a method for manufacturing a flexible air bag nose pad for glasses, comprising: S1. Use a first mold to manufacture a support member, and take out the support member from the first mold, wherein the support member is used to be installed on a glasses frame.

[0013] S2. Manufacturing the lower shell: placing the manufactured support member on the second lower mold of the second mold, and the second upper mold of the second mold and the second lower mold are molded together for injection molding to form a lower shell with supporting force, and the first end face of the lower shell is connected to the support member, so that the lower shell and the support member form a whole, and at the same time, remove the second upper mold, retain the second lower mold and the injection-molded lower shell, that is, the lower shell is placed on the second lower mold, wherein the second upper mold is provided with a second protrusion, and the second protrusion extends toward the second lower mold, so that the upper end face of the lower shell forms a depression.

[0014] S3. Manufacturing the upper shell: forming a deformable upper shell by injection molding on the third mold, that is, the third mold includes a third upper mold and a third lower mold, and a third cavity for processing the upper shell is formed between the third upper mold and the third lower mold, and the upper shell is formed in the cavity of the third mold. After the injection molding, wait for a certain period of time, remove the third lower mold, and retain the third upper mold and the upper shell, that is, the upper shell is installed on the third upper mold, wherein the third lower mold is designed with a third protrusion, and the third protrusion extends toward the third upper mold, so that the interior of the upper shell is concave to form a cavity.

[0015] S4. In order to facilitate the installation of the upper shell on the lower shell, the adhesive is applied on the second end face of the lower shell, that is, the adhesive is applied on the end of the lower shell away from the support member, and the third upper mold with the upper shell is installed on the second lower mold with the lower shell to form a whole, wherein the position where the upper shell is installed on the upper mold of the third mold is the same as the position where the lower shell is installed on the lower mold of the second mold, so that the upper shell is buckled on the lower shell to form a seamless connection. During the splicing process, an air bag containing air is formed between the upper shell and the lower shell, and there is a certain amount of air in the air bag. When the air bag is under pressure, since the air bag is a closed space, the air fluidity is relatively poor, and the air in the air bag will not overflow outward, that is, when force is applied, slight deformation can occur, but it does not affect the internal supporting force.

[0016] With such arrangement, the upper shell and the lower shell are bonded together to form a whole. During bonding, since the upper shell is directly bonded to the lower shell, the upper shell and the lower shell form a sealed airbag. During bonding, the airbag is filled with a certain amount of gas, and the pressure in the airbag is the same as the atmospheric pressure. During use, the gas can only flow in the airbag, and the air flow rate is relatively low, so that the airbag can support the weight of the glasses. At the same time, since the upper shell and the lower shell are bonded, the airbag will not leak, thereby achieving the goal of no inflation hole on the airbag in the prior art to avoid gas leakage. The problem in the prior art that the air is filled into the interior through the inflation hole to achieve the fullness of the nose pad is solved, but the nose pad is prone to leakage during use, thereby forming a normal hard nose pad. That is, the airbag in the prior art is like a plastic bottle with a lid not tightened. When people squeeze the bottle body, the bottle body can be deformed, while the airbag manufactured by the present application is a tightened plastic bottle, which can maintain a better shape when external force is applied, and the pressure inside and outside the bottle body is equal when there is no pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 The first embodiment of the present invention provides a schematic structural diagram of a nose pad manufactured by using the method for manufacturing a flexible airbag nose pad for glasses; Figure 2 The first embodiment of the present invention provides a structural schematic diagram of a second nose pad manufactured by using the method for manufacturing a flexible airbag nose pad for glasses; Figure 3 The first embodiment of the present invention provides a schematic structural diagram of a second upper mold; Figure 4 The first embodiment of the present invention provides a schematic structural diagram of a third lower mold; Figure 5 The first embodiment of the present invention provides a schematic diagram of the structure after the second lower mold and the third upper mold are molded together.

[0019] In the figure: 1, support member; 2, upper shell; 3, lower shell; 4, second upper mold; 41, second protrusion; 5, third lower mold; 51, third protrusion. DETAILED DESCRIPTION

[0020] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0021] This specific embodiment provides a method for manufacturing a flexible airbag nose pad for glasses to solve the technical problem in the prior art that through holes need to be provided in the airbag nose pad for ventilation, resulting in poor supporting force of the airbag and increased pressure on the human nose bridge.

[0022] The following is an explanation of the embodiments with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the invention described in the claims. In addition, the entire contents of the configurations shown in the following embodiments are not limited to the solutions required as the invention described in the claims.

[0023] Reference Figure 1-5 The present invention provides a method for manufacturing a flexible air bag nose pad for glasses, comprising: S1. Use a first mold to manufacture a support member 1, and take out the support member 1 from the first mold. The support member 1 is used to be installed on a glasses frame.

[0024] S2, manufacturing the lower shell 3: placing the manufactured support member 1 on the second lower mold of the second mold, the second upper mold 4 of the second mold and the second lower mold are molded together to form a lower shell 3 with supporting force, and the first end surface of the lower shell 3 is connected to the support member 1, so that the lower shell 3 and the support member 1 form a whole, and at the same time, remove the second upper mold 4, retain the second lower mold and the molded lower shell 3, that is, the lower shell 3 is placed on the second lower mold, wherein, Figure 3 As shown, a second protrusion 41 is provided on the second upper mold 4, and the second protrusion 41 extends toward the second lower mold so that the upper end surface of the lower shell 3 forms a depression, and the concave cavity formed by the depression is used to accommodate air.

[0025] S3, manufacturing the upper shell 2: forming a deformable upper shell 2 on the third mold by injection molding, that is, the third mold includes a third upper mold and a third lower mold 5, and a third cavity for processing the upper shell 2 is formed between the third upper mold and the third lower mold 5, and the upper shell 2 is formed in the cavity of the third mold. After the injection molding is completed, wait for a certain period of time, remove the third lower mold 5, and retain the third upper mold and the upper shell 2, that is, the upper shell 2 is installed on the third upper mold, wherein, Figure 4 As shown, a third protrusion 51 is designed on the third lower mold 5, and the third protrusion 51 extends toward the third upper mold so that the interior of the upper shell 2 is concave to form a cavity, and the cavity is used to accommodate air when buckled.

[0026] S4. In order to facilitate the installation of the upper shell 2 on the lower shell 3, an adhesive is applied on the second end face of the lower shell 3, that is, an adhesive is applied on the end of the lower shell 3 away from the support 1, and at the same time, a third upper mold with the upper shell 2 is installed on the second lower mold with the lower shell 3 to form a whole, wherein the position where the upper shell 2 is installed on the upper mold of the third mold is the same as the position where the lower shell 3 is installed on the lower mold of the second mold, so that the upper shell 2 is buckled on the lower shell 3, thereby forming a seamless connection. During the splicing process, an air bag containing air is formed between the upper shell 2 and the lower shell 3, that is, the air bag is buckled. When they are closed, due to the depression between the upper shell 2 and the lower shell 3, there is also a certain amount of air in the airbag when the upper shell 2 and the lower shell 3 are buckled together, and the air pressure inside the airbag is consistent with the external atmospheric pressure. When the airbag is under pressure, since the airbag is a closed space, the air fluidity is relatively poor, the air in the airbag will not overflow outward, and the airbag can only maintain a corresponding shape. The soft upper shell 2 may be deformed to make the air pressure of the internal gas relatively larger, which can provide good supporting force, that is, when force is applied, it can cause slight deformation, but it does not affect the internal supporting force.

[0027] S5, heating: placing the whole formed by the lower mold of the second mold and the upper mold of the third mold in a heating furnace for heating, so that the upper shell 2 and the lower shell 3 are bonded together.

[0028] S6. Cool, remove the third upper mold, and take out the nose pad.

[0029] With such arrangement, the upper shell 2 and the lower shell 3 are bonded together to form a whole. During bonding, since the upper shell 2 is directly bonded to the lower shell 3, the upper shell 2 and the lower shell 3 form a sealed airbag, wherein during bonding, the inside of the airbag is simultaneously filled with a certain amount of gas, wherein the pressure inside the airbag is the same as the atmospheric pressure. During use, the gas can only flow inside the airbag, and the air flow rate is relatively low, which can enable the airbag to maintain a corresponding shape, so that the airbag can support the weight of the glasses, that is, when an external force is applied, it can also maintain a certain shape; at the same time, since the upper shell 2 and the lower shell 3 are bonded, the airbag will not leak, thereby achieving the prior art of having no inflation hole on the airbag to avoid gas leakage. The problem in the prior art that the nose pad needs to be filled with gas through the inflation hole to achieve a full nose pad is solved, but the nose pad is prone to leakage during use, thereby forming a normal hard nose pad. That is, the prior art is like a plastic bottle with a lid not tightened. When people squeeze the bottle body, the bottle body can be deformed, while the airbag manufactured by the present application is a tightened plastic bottle, which can maintain a better shape when external force is applied, and when the bottle body is not under pressure, the pressure inside and outside the bottle body is equal.

[0030] A further optimization scheme is to facilitate people to set the pattern layer. In step 2 (S2), after removing the second upper mold 4, a pattern layer is set on the side of the lower shell 3 away from the support 1, wherein the pattern layer can be pasted, printed or engraved on the lower shell 3 to facilitate people to identify and distinguish. At least the upper shell 2 uses a transparent material.

[0031] A further optimization plan is to make it possible for people to buckle the third upper mold onto the second lower mold, so that the dimensions of the second mold in the x and y directions are equal to the dimensions of the third mold in the x and y directions. Since the upper shell and the lower shell are located in the same position, when the dimensions of the second mold in the x and y directions are the same as the dimensions of the third mold in the x and y directions, the positional relationship between the upper shell 2 and the lower shell 3 can be known by seeing whether the edges of the two are aligned.

[0032] To further optimize the solution, in order to enable the second lower mold to be interlocked with the third upper mold, a second guide assembly is arranged between the second upper mold 4 and the second lower mold, and a third guide assembly is arranged between the third upper mold and the third lower mold 5, and the second guide assembly and the third guide assembly are the same in position and size. This arrangement facilitates the interlocking of the second lower mold and the third upper mold.

[0033] According to a further optimization scheme, the second guide assembly and the third guide assembly include a guide column and a guide sleeve, wherein the guide column is arranged on the second upper mold 4 and the third upper mold, and the guide sleeve is arranged on the second lower mold and the third lower mold 5, or the guide column is arranged on the second lower mold and the third lower mold 5, and the guide sleeve is arranged on the second upper mold 4 and the third upper mold, and the guide column is installed in the guide sleeve, and the cooperation between the guide column and the guide sleeve can ensure relatively high precision.

[0034] To further optimize the solution, in order to facilitate the installation of the support member 1, a first groove is provided on the end face of the second lower mold, and the first groove supports the support member 1 to ensure the angle between the support member 1 and the lower shell 3 and reduce the probability of shaking.

[0035] A further optimization scheme is to process the support member 1 and the lower shell 3 into an integral structure with the same material. The lower shell 3 and the support member 1 are made of the same material so that the support member 1 and the lower shell 3 form a whole. In this way, the first mold can be directly omitted and the processing steps can be reduced. However, adding the first step can satisfy the needs of support members 1 of different materials. Therefore, the material of the support member 1 can be metal or plastic.

[0036] According to a further optimization scheme, in step 5 (S5), the temperature of the heating furnace is 115-125 degrees Celsius, which facilitates bonding the upper shell 2 and the lower shell 3.

[0037] It should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. used herein to indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0038] In the description of this article, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0039] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

[0040] It is to be understood that the same or similar parts in the above embodiments can refer to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments. The multiple schemes provided in this application include their own basic schemes, which are independent of each other and do not restrict each other, but they can also be combined with each other without conflict to achieve multiple effects together.

[0041] Although the embodiments of the present application have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present application. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A method for manufacturing a flexible airbag nose pad for glasses, characterized in that: include: S1, using a first mold to manufacture a support member (1), and removing the support member (1) from the first mold; S2, manufacturing the lower shell (3): the support member (1) is placed on the second lower mold of the second mold, the second upper mold (4) of the second mold is molded together with the second lower mold to form the lower shell (3) with supporting force by injection molding, and the first end surface of the lower shell (3) is connected to the support member (1), and the second upper mold (4) is removed; S3, manufacturing the upper shell (2): forming the deformable upper shell (2) on a third mold by injection molding, and removing the third lower mold (5) of the third mold; S4, applying adhesive to the second end surface of the lower shell (3), and installing the third upper mold of the third mold with the upper shell (2) on the second lower mold with the lower shell (3) to form a whole, wherein the position where the upper shell (2) is installed in the third upper mold is the same as the position where the lower shell (3) is installed in the second lower mold, so that the upper shell (2) is buckled on the lower shell (3); S5, heating: placing the whole formed by the second lower mold and the third upper mold in a heating furnace for heating, so that the upper shell (2) and the lower shell (3) are bonded together; S6, cooling, removing the third upper mold, and taking out the nose pad.

2. The method for manufacturing a flexible airbag nose pad for glasses according to claim 1, characterized in that: In S2, after removing the second upper mold (4), a pattern layer is provided on a side of the lower shell (3) away from the support member (1).

3. The method for manufacturing a flexible airbag nose pad for glasses according to claim 1, characterized in that: The dimensions of the second mold in the x and y directions are equal to the dimensions of the third mold in the x and y directions.

4. The method for manufacturing a flexible airbag nose pad for glasses according to claim 1, characterized in that: A first groove is provided on the end surface of the second lower mold, and the first groove supports the support member (1).

5. The method for manufacturing a flexible airbag nose pad for glasses according to claim 4, characterized in that: The lower shell (3) and the support member (1) are made of the same material, so that the support member (1) and the lower shell (3) form a whole.

6. The method for manufacturing a flexible airbag nose pad for glasses according to claim 3, characterized in that: A second guide assembly is provided between the second upper mold (4) and the second lower mold, and a third guide assembly is provided between the third upper mold and the third lower mold (5), and the second guide assembly and the third guide assembly are of the same position and size.

7. The method for manufacturing a flexible airbag nose pad for glasses according to claim 6, characterized in that: The second guide assembly and the third guide assembly comprise a guide column and a guide sleeve. The guide column is arranged on the second upper mold (4) and the third upper mold, and the guide column is arranged on the second lower mold and the third lower mold (5).

8. The method for manufacturing a flexible airbag nose pad for glasses according to claim 1, characterized in that: The temperature in the heating furnace is 115-125 degrees Celsius.

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