Method for manufacturing a composite material mobile phone protective case

Abstract

This invention relates to the field of mobile phone case manufacturing technology, and discloses a method for manufacturing a composite material mobile phone case, comprising: cutting a roll of prepreg fabric into small pieces of prepreg fabric with a preset shape and size; stacking the cut prepreg fabric pieces according to a preset thickness of the mobile phone case; pressing the composite material onto a mold core, and placing the camera protection ring in a preset position on the material; covering the material and mold core after the first pressing with a mold outer sleeve, and performing a second pressing for shaping; placing the mold assembly after the second pressing into a vacuum-sealed bag and vacuum-sealing it; placing the vacuum-sealed mold assembly into a thermostatic precipitator for heating and pressurization; after cooling and curing, removing the mold assembly, and cutting the material covering the mold core according to a preset structure using a laser cutting machine to prepare a composite material mobile phone case. This invention facilitates the fitting and protection of mobile phones and effectively protects the mobile phone camera.

Description

Technical Field

[0001] This invention relates to the field of mobile phone case manufacturing technology, and in particular to a method for manufacturing a composite material mobile phone case. Background Technology

[0002] Currently available composite material phone cases all exhibit various obvious defects in the camera area, primarily:

[0003] 1. Fine-hole type: The protective case has a noticeably large gap between itself and the phone's camera area. It does not fit the phone well, easily traps dust, and can affect the phone's flash and proximity sensor functions. This reduces the user experience and is also unsightly.

[0004] 2. Volcano-shaped: This design improves upon the issue of the fine-hole type easily affecting the phone's flash and proximity sensor functions, but the problem of it not fitting snugly with the phone case and easily accumulating dust still exists. It also reduces the protection of the phone's lens and has a poor aesthetic appeal.

[0005] 3. Ring type: Making a separate camera ring and assembling it onto the phone case can easily scratch the back cover of the phone, providing poor protection for the phone's lens.

[0006] Therefore, how to provide a method for manufacturing a composite material mobile phone case so that the case can effectively protect the camera lens of the mobile phone has become an urgent technical problem to be solved. Summary of the Invention

[0007] The technical problem to be solved by the present invention is how to provide a method for manufacturing a composite material mobile phone case so that the mobile phone case can effectively protect the mobile phone camera lens.

[0008] Therefore, according to a first aspect, embodiments of the present invention disclose a method for manufacturing a composite material mobile phone case, comprising: cutting a roll of prepreg fabric into prepreg fabric pieces of a preset shape and size; stacking the cut prepreg fabric pieces together according to a preset thickness of the mobile phone case; pressing the composite material onto a mold core, and placing a camera protection ring of another material at a preset position on the material; the mold core is made of metal and its shape is the preset shape of the mobile phone case; covering the material and the mold core after the first pressing with a silicone sleeve, and performing a second pressing for shaping; placing the mold assembly after the second pressing into a vacuum-sealed bag and performing vacuum sealing; placing the vacuum-sealed mold assembly into a hot press, setting the required hot pressing temperature, hot pressing pressure and hot pressing time of the mold assembly to make the prepreg fabric and the camera protection ring tightly bonded; after cooling and curing, removing the mold assembly, and cutting the material covering the mold core according to a preset structure using a laser cutting machine to prepare a composite material mobile phone case.

[0009] The present invention is further configured to perform a tactile paint spraying treatment on the surface of the composite material mobile phone protective case.

[0010] The present invention is further configured such that the hot pressing temperature is 120-150°C and the hot pressing pressure is 0.5-1.2 MPa.

[0011] The present invention is further configured such that the hot pressing time is 90 to 180 minutes.

[0012] The present invention is further configured such that a layer of silicone or elastomer is provided on the outer side of the mold core, the elastomer having the property of not adhering to epoxy resin, or the surface of the mold core can be coated with an epoxy release agent.

[0013] The present invention is further configured such that the prepreg fabric is made of aramid or other woven material and prepreg epoxy resin.

[0014] The present invention is further configured such that the camera protective ring is made of metal or non-metal material.

[0015] This invention has the following beneficial effects: The method for manufacturing a composite material mobile phone case disclosed in this invention is characterized by the following steps: cutting a roll of prepreg fabric into small pieces of prepreg fabric with a preset shape and size; stacking the cut prepreg fabric pieces according to the preset thickness of the mobile phone case; pressing the composite material onto a mold core and placing the camera protection ring at a preset position on the material; covering the material and the mold core after the first pressing with a mold outer sleeve, and performing a second pressing for shaping; placing the mold assembly after the second pressing into a vacuum-sealed bag and vacuum-sealing it; placing the vacuum-sealed mold assembly into a hot press, setting the required hot pressing temperature, hot pressing pressure, and hot pressing time for the mold assembly to ensure a tight bond between the prepreg fabric and the camera protection ring; after cooling and curing, removing the mold assembly, and cutting the material covering the mold core according to a preset structure using a laser cutting machine to prepare the composite material mobile phone case. Compared with the prior art, this invention integrates the camera protection ring and the mobile phone case, facilitating a secure fit and protection of the mobile phone, and effectively protecting the mobile phone camera. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1This is a flowchart illustrating a method for manufacturing a composite material mobile phone protective case disclosed in this embodiment;

[0018] Figure 2 This is a schematic diagram of the application structure of a composite material mobile phone case in the manufacturing method disclosed in this embodiment. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can also refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0023] This invention discloses a method for manufacturing a composite material mobile phone case, such as... Figure 1 and Figure 2 As shown, it includes the following steps:

[0024] Step S101: Cut the roll of prepreg fabric into small pieces of prepreg fabric of a predetermined shape and size;

[0025] Step S102: According to the preset thickness of the mobile phone case, the cut prepreg fabric pieces are composited and stacked.

[0026] Step S103: Place the composite material on the mold core and press it together, and place the camera protection ring in the preset position of the material; the mold core is made of metal and its shape is the preset shape of the mobile phone case;

[0027] Step S104: The material and mold core after the first pressing are covered by the mold outer sleeve, and then a second pressing is performed to shape them;

[0028] Step S105: Place the mold assembly after secondary pressing into a vacuum sealing bag and perform vacuum sealing.

[0029] Step S106: Place the vacuum-sealed mold assembly into the autoclave, and set the required hot pressing temperature, hot pressing pressure and hot pressing time for the mold assembly to ensure that the prepreg fabric is tightly bonded to the camera protective ring.

[0030] Step S107: After cooling and solidification, the mold assembly is removed, and the material covering the mold core is cut according to the preset structure using a laser cutting machine to prepare a composite material mobile phone protective case.

[0031] It should be noted that the method for manufacturing a composite material mobile phone case disclosed in this invention is characterized by the following steps: cutting a roll of prepreg fabric into small pieces of prepreg fabric with a preset shape and size; stacking the cut prepreg fabric pieces according to the preset thickness of the mobile phone case; pressing the composite material onto a mold core and placing the camera protection ring at a preset position on the material; covering the material and the mold core after the first pressing with a mold outer sleeve, and performing a second pressing for shaping; placing the mold assembly after the second pressing into a vacuum-sealed bag and vacuum sealing it; placing the vacuum-sealed mold assembly into a hot press, setting the required hot pressing temperature, hot pressing pressure, and hot pressing time for the mold assembly to ensure a tight bond between the prepreg fabric and the camera protection ring; after cooling and curing, removing the mold assembly and cutting the material covering the mold core according to a preset structure using a laser cutting machine to prepare the composite material mobile phone case. Compared with the prior art, this invention integrates the camera protection ring and the mobile phone case, facilitating a secure fit and protection of the mobile phone, and effectively protecting the mobile phone camera.

[0032] In an optional embodiment, the surface of the composite material phone case is treated with a tactile paint coating. It should be noted that applying this tactile paint coating to the surface of the composite material phone case improves its feel.

[0033] In an optional embodiment, the hot-pressing temperature is 120–150°C and the hot-pressing pressure is 0.5–1.2 MPa.

[0034] In an optional embodiment, the hot pressing time is 90 to 180 minutes.

[0035] In an optional embodiment, the outer side of the mold core is provided with a layer of silicone or elastomer or coated with an epoxy release agent. The elastomer or epoxy release agent has the property of not adhering to the epoxy resin. It should be noted that, due to the addition of the elastomer or epoxy release agent, it is convenient to wrap the prepreg fabric, and during the hot pressing process, the elastomer and the prepreg fabric do not adhere to each other.

[0036] In an alternative embodiment, the prepreg fabric is made of aramid or other woven material and prepreg epoxy resin.

[0037] In an alternative embodiment, the camera protective ring is made of metal or non-metal material.

[0038] Working Principle: This invention discloses a method for manufacturing a composite material mobile phone case, characterized by the following steps: cutting a roll of prepreg fabric into small pieces of prepreg fabric with a preset shape and size; stacking the cut prepreg fabric pieces according to the preset thickness of the mobile phone case; pressing the composite material onto a mold core and placing the camera protection ring at a preset position on the material; covering the material and the mold core after the first pressing with a mold outer sleeve, and performing a second pressing for shaping; placing the mold assembly after the second pressing into a vacuum-sealed bag and vacuum-sealing it; placing the vacuum-sealed mold assembly into a hot press tank, setting the required hot pressing temperature, hot pressing pressure, and hot pressing time for the mold assembly to ensure a tight bond between the prepreg fabric and the camera protection ring; after cooling and curing, removing the mold assembly, and cutting the material covering the mold core according to a preset structure using a laser cutting machine to prepare the composite material mobile phone case. Compared with the prior art, this invention integrates the camera protection ring and the mobile phone case, facilitating a secure fit and protection of the mobile phone, and effectively protecting the mobile phone camera.

[0039] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A method for manufacturing a composite material mobile phone protective case, characterized in that, Includes the following steps: Cut the roll of prepreg fabric into small pieces of prepreg fabric with a predetermined shape and size; Based on the preset thickness of the phone case, the cut pieces of prepreg fabric are layered together. The composite material is placed on the mold core and pressed together, and the camera protective ring is placed in the preset position of the material; the mold core is made of metal and its shape is the preset shape of the mobile phone case. The mold core and the material after the first pressing are covered by the mold outer sleeve, and then a second pressing is performed to shape them; After the second pressing, the mold assembly is placed in a vacuum-sealed bag and then vacuum-sealed. The vacuum-sealed mold assembly is placed in a hot autoclave, and the required hot pressing temperature, pressure and time are set for the mold assembly to ensure that the prepreg fabric is tightly bonded to the camera protective ring. After cooling and solidification, the mold assembly is removed, and the material covering the mold core is cut according to the preset structure using a laser cutting machine to produce a composite material mobile phone protective case.

2. The method for manufacturing a composite material mobile phone protective case according to claim 1, characterized in that, The surface of the composite material mobile phone case is treated with a tactile paint spraying process.

3. The method for manufacturing a composite material mobile phone protective case according to claim 1, characterized in that, The hot pressing temperature is 120-150℃, and the hot pressing pressure is 0.5MPa-1.2MPa.

4. The method for manufacturing a composite material mobile phone protective case according to claim 1, characterized in that, The hot pressing time is 90 to 180 minutes.

5. The method for manufacturing a composite material mobile phone protective case according to claim 1, characterized in that, The outer side of the mold core is provided with an elastomer, which has the property of not bonding with epoxy resin.

6. The method for manufacturing a composite material mobile phone protective case according to claim 1 or 5, characterized in that, The surface of the mold core is coated with an epoxy release agent.

7. The method for manufacturing a composite material mobile phone protective case according to any one of claims 1-5, characterized in that, The prepreg fabric is made of aramid or other woven materials and prepregped with epoxy resin.

8. The method for manufacturing a composite material mobile phone protective case according to any one of claims 1-5, characterized in that, The camera protection ring is made of metal or non-metal materials.

Images