Cloth and sponge 3D composite forming process

Abstract

The invention provides a 3D composite forming process of cloth and sponge, which is mainly applied to production of virtual reality (VR) equipment masks, such as masks of head-mounted displays and VR glasses. The process comprises the steps of pretreatment, pre-lamination, 3D composite molding, post-treatment and quality inspection. Sponge and cloth are cut and tidied through pretreatment, and then pre-lamination is conducted through a hot melt adhesive film. And carrying out 3D composite molding at a preset temperature for a preset time to form an integrated composite structure. And then post-processing and quality inspection are carried out to meet all related performance and quality standards. According to the process, through precise 3D composite forming, the manufactured VR equipment mask can completely fit the face shape of a user, excellent comfort and use experience are provided, high production efficiency is kept, the requirement for large-scale production is met, and meanwhile high quality of the product is ensured. The durability and the reliability of the product are remarkably improved through the pre-laminating and 3D composite forming processes.

Description

Technical Field

[0001] The invention belongs to the field of composite molding, and specifically relates to a 3D composite molding process of cloth and sponge. Background Art

[0002] Virtual reality (VR) devices are becoming an increasingly important part of people's lives, especially in the fields of gaming, education, and medical treatment. A high-quality VR device needs to be equipped with a comfortable, durable, and beautiful mask. The mask is usually made of a composite of sponge and cloth, where the sponge provides cushioning to protect the user's face, and the cloth covers the sponge to provide a comfortable touch and sweat absorption.

[0003] However, in traditional production methods, the combination of sponge and cloth usually requires two separate steps: first, cutting and shaping the sponge to fit the shape and size of the mask; then, attaching the cloth to the shaped sponge surface. This process is usually time-consuming and inefficient.

[0004] In addition, since VR masks are usually complex in shape and need to fit the user's face precisely, traditional composite methods may have difficulty in dealing with these complex shapes. For example, it is difficult to accurately fit fabric to sponge with details such as bends and chamfers, which may cause wrinkles, holes or other quality problems.

[0005] Therefore, developing a new composite technology that can simultaneously composite and mold sponge and fabric and accurately process complex shapes is of great value for improving the production efficiency and quality of VR masks. Summary of the invention

[0006] The present invention relates to a 3D composite molding process of fabric and sponge, which aims to solve the problem that traditional processes cannot balance the production efficiency, quality and comfort of masks. The process is specifically used to produce masks for virtual reality (VR) devices, such as masks for head-mounted displays (HMDs), masks for VR glasses, and masks for other VR devices that need to provide comfort and fit.

[0007] In order to solve the above technical problems, the present invention provides a 3D composite molding process of fabric and sponge, comprising the following steps:

[0008] a) Cutting and arranging sponges and fabrics, pre-processing to prepare them to the shape and size of the final product;

[0009] b) Pre-laminate the pre-treated sponge and fabric with a hot melt adhesive film to ensure the positioning and fixation of the sponge and fabric during the molding process;

[0010] c) Using a specially designed molding jig to perform 3D composite molding of the pre-laminated sponge and fabric to form an integrated composite structure that accurately matches the preset 3D shape;

[0011] d) Post-processing and quality inspection of products after composite molding to meet all relevant performance and quality standards.

[0012] Furthermore, the pre-lamination step includes directly contacting the hot melt adhesive film to the sponge and the cloth for natural attachment and lamination.

[0013] Furthermore, the 3D composite molding step is performed under the following conditions: a temperature range of 150° C. to 180° C., and a time range of 120 seconds to 160 seconds.

[0014] Furthermore, the post-processing step includes surface treatment of the composite-molded product, such as removing excess hot melt adhesive and trimming the product edge.

[0015] Furthermore, the quality inspection steps include strength testing, durability testing, appearance inspection and dimensional accuracy verification of the composite molded products.

[0016] Furthermore, an intermediate inspection step is performed after the pre-lamination step and before the 3D composite molding step to confirm the pre-lamination quality and preparation status of the sponge and the cloth.

[0017] Furthermore, the intermediate inspection step includes visual inspection of the pre-laminated sponge and fabric to detect possible problems such as poor lamination and uneven distribution of the hot melt adhesive film.

[0018] Furthermore, the process is applied to the production of virtual reality (VR) device masks.

[0019] The present invention provides a fabric and sponge 3D composite molding process, which uses precise 3D composite molding to produce a VR device mask that can completely fit the user's facial shape, thereby providing excellent comfort and user experience. The process maintains high production efficiency, can meet the needs of large-scale production, and ensures the high quality of the product. The pre-lamination and 3D composite molding process is adopted, and the durability and reliability of the product are significantly improved. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the preferred implementation scheme of the present invention is described below in conjunction with specific examples. The technical features of the selection of cavity molds involved in the patent application of the present invention should be regarded as prior art. Unless otherwise specified, they are obtained from conventional commercial channels or made by conventional methods. The specific structure, working principle, and possible control methods and spatial layout methods can be selected conventionally in the field and should not be regarded as the innovative point of the present invention. For those skilled in the art, it is understandable and the patent of the present invention will not be further specifically described.

[0021] This embodiment provides a 3D composite molding process of fabric and sponge, and the specific steps are as follows:

[0022] a) Cutting and arranging sponges and fabrics: According to the preset mask model, the sponges and fabrics are cut into shapes that match the size of the model using cutting equipment. Then, the cut sponges and fabrics are arranged to meet the pre-processing requirements.

[0023] b) Pre-lamination: Use hot melt adhesive film to pre-laminate the pre-treated sponge and fabric. Directly contact the hot melt adhesive film with the sponge and fabric, so that the hot melt adhesive film, sponge and fabric adhere to each other naturally.

[0024] c) 3D composite molding: The pre-laminated sponge and fabric are placed in a specially designed molding jig, and then 3D composite molding is performed at a temperature of 150°C and a time of 140 seconds to form an integrated composite structure.

[0025] d) Post-processing and quality inspection: The molded products are surface treated, such as removing excess hot melt adhesive and trimming product edges. The composite molded products are then subjected to strength testing, durability testing, appearance inspection, and dimensional accuracy verification.

[0026] Embodiment 2:

[0027] Based on Example 1, this example further provides a 3D composite molding process of fabric and sponge, and the specific steps are as follows:

[0028] a) Cutting and arranging sponges and fabrics: According to the preset VR glasses mask model, use cutting equipment to cut the sponges and fabrics into shapes that match the size of the model. Then, the cut sponges and fabrics are arranged to meet the pre-processing requirements.

[0029] b) Pre-lamination: After the pre-lamination step, the pre-laminated sponge and fabric are subjected to an intermediate inspection, which includes a visual inspection to detect possible problems such as poor lamination and uneven distribution of the hot melt adhesive film.

[0030] c) 3D composite molding: The sponge and fabric that have passed the intermediate inspection are placed in a specially designed molding jig, and then 3D composite molding is performed at a temperature of 170°C and a time of 150 seconds to form an integrated composite structure.

[0031] d) Post-processing and quality inspection: The molded products are surface treated, such as removing excess hot melt adhesive and trimming product edges. The composite molded products are then subjected to strength testing, durability testing, appearance inspection, and dimensional accuracy verification.

[0032] Embodiment 3:

[0033] Based on Example 2, this example further provides a 3D composite molding process of fabric and sponge, and the specific steps are as follows:

[0034] a) Cutting and arranging sponges and fabrics: According to the preset AR glasses mask model, the sponges and fabrics are cut into shapes that match the size of the model using cutting equipment. Then, the cut sponges and fabrics are arranged to meet the pre-processing requirements.

[0035] b) Pre-lamination: After the pre-lamination step, the pre-lamination sponge and fabric are subjected to intermediate inspection, which includes visual inspection to detect possible poor lamination, uneven distribution of hot melt adhesive film, etc.

[0036] c) 3D composite molding: The sponge and fabric that have passed the intermediate inspection are placed in a specially designed molding jig, and then 3D composite molding is performed at a temperature of 190°C and a time of 160 seconds to form an integrated composite structure.

[0037] d) Post-processing and quality inspection: The molded products are surface treated, such as removing excess hot melt adhesive and trimming product edges. The composite molded products are then subjected to strength testing, durability testing, appearance inspection, and dimensional accuracy verification.

[0038] We can see that in the 3D composite molding process of fabric and sponge, the choice of temperature and time is very important.

[0039] Temperature: From the three examples, we can see that as the temperature of composite molding increases, the quality of the final product also improves accordingly. In Example 3, composite molding was carried out at 190°C, and the various indicators of the final product (strength test, durability test, appearance inspection, and dimensional accuracy verification) reached a high level. However, this does not mean that the higher the temperature, the better. Too high a temperature may cause damage or deformation of the material.

[0040] Time: The effect of time on composite molding is also very obvious. In Example 1, the composite molding time is 140 seconds, while in Example 3, the composite molding time is 160 seconds. As the composite molding time increases, the quality of the product also improves. However, like temperature, the longer the time, the better. Too long a time may cause excessive hardening or thermal aging of the material.

[0041] In summary, according to the current experimental data, 190℃ temperature and 160 seconds is a relatively good composite molding condition. The products under this condition have higher quality and stable performance.

[0042] The above embodiments are only used to illustrate the present invention, and are not used to limit the protection scope of the present invention. The above embodiments may be modified or replaced without departing from the spirit of the present invention, and the protection scope of the present invention shall be subject to the contents contained in the claims.

Claims

1. A 3D composite molding process of fabric and sponge, characterized in that: The steps include: a) Cutting and arranging sponges and fabrics, pre-processing to prepare them to the shape and size of the final product; b) Pre-laminate the pre-treated sponge and fabric with a hot melt adhesive film to ensure the positioning and fixation of the sponge and fabric during the molding process; c) Using a specially designed molding jig to perform 3D composite molding of the pre-laminated sponge and fabric to form an integrated composite structure that accurately matches the preset 3D shape; d) Post-processing and quality inspection of products after composite molding to meet all relevant performance and quality standards.

2. The process according to claim 1, characterized in that The pre-lamination step involves directly contacting the hot melt adhesive film to the sponge and fabric for natural attachment.

3. The process according to claim 1, characterized in that The 3D composite molding step is performed under the following conditions: a temperature range of 150°C to 180°C and a time range of 120 seconds to 160 seconds.

4. The process according to claim 1, characterized in that The post-processing step includes surface treatment of the composite molded product, such as removing excess hot melt adhesive and trimming the product edges.

5. The process according to claim 1, characterized in that The quality inspection steps include strength testing, durability testing, appearance inspection and dimensional accuracy verification of the composite molded products.

6. The process according to claim 1, characterized in that An intermediate inspection step is performed after the pre-lamination step and before the 3D composite molding step to confirm the pre-lamination quality and readiness status of the sponge and cloth.

7. The process according to claim 6, characterized in that The intermediate inspection step includes a visual inspection of the pre-laminated sponges and fabrics to detect possible poor lamination, uneven distribution of the hot melt adhesive film, etc.

8. The process according to claim 1, characterized in that This process is used in the production of virtual reality (VR) device masks.

9. The process according to claim 8, characterized in that The VR device mask includes but is not limited to a head mounted display (HMD) mask and a VR glasses mask.