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CN-115302813-B - Manufacturing method of composite material mobile phone protective shell

CN115302813BCN 115302813 BCN115302813 BCN 115302813BCN-115302813-B

Abstract

The invention relates to the technical field of manufacturing of mobile phone protective cases, and discloses a manufacturing method of a composite material mobile phone protective case, which comprises the steps of cutting coiled prepreg cloth into prepreg cloth small pieces with preset shapes and sizes; the method comprises the steps of carrying out composite superposition on cut prepreg cloth small pieces according to the preset thickness of a mobile phone protective shell, placing the composite material on a mold core, pressing, placing a camera protective ring at the preset position of the material, coating the material pressed once and the mold core through a mold jacket, carrying out secondary pressing and shaping, placing a mold assembly after the secondary pressing into a vacuum sealing bag, carrying out vacuum sealing, placing the mold assembly after the vacuum sealing into an autoclave, heating and pressurizing, cooling and solidifying, taking out the mold assembly, and cutting the material coated on the mold core according to a preset structure through a laser cutting machine to prepare the composite material mobile phone protective shell. The invention is convenient for attaching and protecting the mobile phone and effectively protecting the mobile phone camera.

Inventors

  • ZHENG ZHIXIU
  • WU SHENGHU
  • YU SHENGHAI
  • XIE DANGZHEN

Assignees

  • 东莞市兰海复合材料科技有限公司

Dates

Publication Date
20260505
Application Date
20220823

Claims (8)

  1. 1. The manufacturing method of the composite material mobile phone protective shell is characterized by comprising the following steps of: cutting the rolled prepreg cloth into prepreg cloth small pieces with preset shapes and sizes; according to the preset thickness of the mobile phone protective shell, the cut prepreg cloth small pieces are subjected to composite superposition; The composite material is placed on a mold core to be pressed, and a camera protection ring is placed at a preset position of the material, wherein the mold core is made of metal and has a shape of a preset mobile phone protection shell; Coating the material subjected to primary pressing and the mold core through a mold jacket, and performing secondary pressing and shaping; Placing the die assembly after the secondary lamination into a vacuum sealing bag, and performing vacuum sealing; Placing the vacuum sealed die assembly into an autoclave, and setting the hot pressing temperature, the hot pressing pressure and the hot pressing time required by the die assembly so as to tightly combine the prepreg cloth with the camera protection ring; And taking out the die assembly after cooling and solidifying, and cutting the material coated on the die core according to a preset structure by a laser cutting machine to prepare the composite material mobile phone protective shell.
  2. 2. The method for manufacturing the composite material mobile phone protective shell according to claim 1, wherein the surface of the composite material mobile phone protective shell is subjected to hand feeling paint spraying treatment.
  3. 3. The method for manufacturing the composite material mobile phone protective shell according to claim 1, wherein the hot pressing temperature is 120-150 ℃, and the hot pressing pressure is 0.5-1.2 MPa.
  4. 4. The method for manufacturing the composite material mobile phone protective shell according to claim 1, wherein the hot pressing time is 90-180 minutes.
  5. 5. The method for manufacturing a composite material mobile phone protective shell according to claim 1, wherein a layer of elastomer is arranged on the outer side of the mold core, and the elastomer has the performance of being unbonded with epoxy resin.
  6. 6. The method for manufacturing a composite material mobile phone protective shell according to claim 1 or 5, wherein the surface of the mold core is coated with an epoxy release agent.
  7. 7. The method for manufacturing a composite material mobile phone protective shell according to any one of claims 1 to 5, wherein the prepreg fabric is made of aramid or other braiding materials and is made of epoxy resin materials.
  8. 8. The method for manufacturing a composite material mobile phone protective housing according to any one of claims 1 to 5, wherein the camera protective ring is made of a metal or a non-metal material.

Description

Manufacturing method of composite material mobile phone protective shell Technical Field The invention relates to the technical field of manufacturing of mobile phone protective cases, in particular to a manufacturing method of a composite mobile phone protective case. Background The composite material mobile phone protective housing in the current market has obvious defects of different types in the area of processing cameras, and is mainly: 1. the protecting shell is not attached to the shell of the mobile phone, so that ash is easy to hide, the functions of a flash lamp and a distance sensor of the mobile phone are easy to influence, the use experience of the mobile phone is reduced, and the mobile phone is not attractive; 2. The problem that the function of a flash lamp and a distance sensor of the mobile phone is affected easily due to the refined hole type is solved, but the problem that ash is easy to store due to the fact that the refined hole type is not attached to a shell of the mobile phone is still solved, the protection of a lens of the mobile phone is reduced, and the aesthetic feeling of the mobile phone is poor; 3. And (3) ring mounting, namely independently manufacturing a split camera ring and assembling the split camera ring on a mobile phone protective shell, wherein the camera ring can scratch a mobile phone back cover easily, and the protection to a lens of the mobile phone is poor. Therefore, how to provide a manufacturing method of a composite material mobile phone protection shell, so that the mobile phone protection shell can effectively protect a mobile phone camera lens is a technical problem to be solved. Disclosure of Invention The invention aims to provide a manufacturing method of a composite material mobile phone protective shell so as to effectively protect a mobile phone camera lens. According to a first aspect, the embodiment of the invention discloses a manufacturing method of a composite material mobile phone protective shell, which comprises the steps of cutting rolled prepreg cloth into prepreg cloth small pieces with preset shapes and sizes, carrying out composite superposition on the cut prepreg cloth small pieces according to the preset thickness of the mobile phone protective shell, placing a composite material on a mold core for pressing, placing a camera protection ring made of another material at a preset position of the material, wherein the mold core is made of metal, the shape of the mold core is the shape of the preset mobile phone protective shell, coating the material after primary pressing and the mold core through a silica gel jacket, carrying out secondary pressing and shaping, placing a mold assembly after secondary pressing into a vacuum sealing bag, carrying out vacuumizing and sealing, placing the mold assembly after vacuum sealing into an autoclave, setting the required hot pressing temperature, hot pressing pressure and hot pressing time of the mold assembly, so that the prepreg cloth is tightly combined with the camera protection ring, taking out the mold assembly after cooling and solidifying, and cutting the material coated on the mold core according to a preset structure through a laser cutting machine, so as to manufacture the composite material mobile phone protective shell. The invention further provides that the surface of the composite material mobile phone protective shell is subjected to hand feeling paint spraying treatment. The invention is further arranged that the hot pressing temperature is 120-150 ℃, and the hot pressing pressure is 0.5-1.2 MPa. The invention further provides that the hot pressing time is 90-180 minutes. The invention is further characterized in that a layer of silica gel or an elastomer is arranged on the outer side of the mold core, and the elastomer has the property of being not adhered with epoxy resin or the surface of the mold core can be coated with an epoxy release agent. The invention further provides that the prepreg cloth is made of aramid or other braiding materials and is made of prepreg epoxy resin materials. The camera protection ring is further made of metal or nonmetal materials. The manufacturing method of the composite material mobile phone protective shell is characterized by comprising the following steps of cutting rolled prepreg cloth into prepreg cloth small pieces with preset shapes and sizes, carrying out composite superposition on the cut prepreg cloth small pieces according to the preset thickness of the mobile phone protective shell, placing the composite material on a mold core, pressing a camera protection ring at the preset position of the material, coating the material after primary pressing and the mold core through a mold jacket, carrying out secondary pressing and shaping, placing a mold assembly after secondary pressing into a vacuum sealing bag, carrying out vacuumizing sealing, placing the mold assembly after vacuum sealing into an autoclave, setting the hot pressing temper