CN104552757A - Mobile phone rear shell and manufacturing method of mobile phone rear shell - Google Patents
Mobile phone rear shell and manufacturing method of mobile phone rear shell Download PDFInfo
- Publication number
- CN104552757A CN104552757A CN201510026624.5A CN201510026624A CN104552757A CN 104552757 A CN104552757 A CN 104552757A CN 201510026624 A CN201510026624 A CN 201510026624A CN 104552757 A CN104552757 A CN 104552757A
- Authority
- CN
- China
- Prior art keywords
- film sheet
- compound film
- plastic cement
- mobile phone
- phone battery
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title abstract description 5
- 239000004033 plastic Substances 0.000 claims abstract description 120
- 229920003023 plastic Polymers 0.000 claims abstract description 120
- 238000002347 injection Methods 0.000 claims abstract description 22
- 239000007924 injection Substances 0.000 claims abstract description 22
- 238000001746 injection moulding Methods 0.000 claims abstract description 12
- 150000001875 compounds Chemical class 0.000 claims description 131
- 239000004568 cement Substances 0.000 claims description 114
- 239000000463 material Substances 0.000 claims description 42
- 238000002360 preparation method Methods 0.000 claims description 24
- 238000005520 cutting process Methods 0.000 claims description 10
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 6
- 229920006231 aramid fiber Polymers 0.000 claims description 6
- 239000004917 carbon fiber Substances 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- 238000002791 soaking Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 abstract 7
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 239000003292 glue Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000003698 laser cutting Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000608 laser ablation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- B29C45/14065—Positioning or centering articles in the mould
-
- 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
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
-
- 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
- B29C45/14065—Positioning or centering articles in the mould
- B29C2045/14122—Positioning or centering articles in the mould using fixed mould wall projections for centering the insert
-
- 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
- B29C45/14065—Positioning or centering articles in the mould
- B29C2045/14155—Positioning or centering articles in the mould using vacuum or suction
Abstract
The invention provides a manufacturing method of a mobile phone rear shell. The manufacturing method comprises the following steps: providing a composite film; forming a first camera mounting hole in the composite film; providing an injection mold including a front mold and a rear mold; arranging a suction groove and a suction device on the front mold; setting a locating piece, a first pitched roof and a second pitched roof on the mold core of the rear mold; arranging the composite film in the mold cavity of the front mold; adsorbing the composite film by virtue of the suction device; ejecting the composite film by virtue of the locating piece and the first pitched roof; injection-molding a required plastic main body by virtue of the injection mold; and forming a second camera mounting hole on the plastic main body. By arranging the locating piece and the first pitched roof on the mold core of the rear mold, the manufacturing method disclosed by the invention, besides locating the composite film, can be used for guaranteeing that locating holes of the locating piece and the first pitched roof formed on the plastic main body are covered by the composite film, so as to avoid the formation of through holes on the mobile phone rear shell and to effectively guarantee the exquisite appearance of the mobile phone rear shell. Furthermore, the invention also provides the mobile phone rear shell.
Description
Technical field
The present invention relates to the technical field of handset shell, the preparation method particularly relating to a kind of mobile phone battery cover and the mobile phone battery cover adopting the method to be made.
Background technology
Current mobile phone battery cover for avoiding homogeneity, and appears individual character and fashion suddenly, generally can realize in the following ways:
1, IML (diaphragm in-mould injection) mode, is specially, by texture and color printing in PET sheet, then at in-mould injection.But which need drive locating hole on back cover surface, and this way can affect the outward appearance of mobile phone battery cover, and the texture 3D texture of mobile phone battery cover is poor, be difficult to meet the requirement of consumer for the high exquisite degree of mobile phone battery cover.
2, paste texture diaphragm mode, be specially, first on compound film sheet, carry out texture, then adopted by compound film sheet the mode of PUR to be pasted onto in plastic back shell.But the compound film sheet of which can only be pasted onto in large plane, can not cover on vertical side wall, lack integraty, and easily produce cooperation seam not of uniform size.
Therefore, be necessary to provide a kind of technological means to address the aforementioned drawbacks.
Summary of the invention
The object of the invention is to the defect overcoming prior art, the preparation method of mobile phone battery cover is provided, to solve in prior art because needing to arrange the locating hole running through mobile phone battery cover so that the problem being difficult to the exquisite appearance degree ensureing mobile phone battery cover.
The present invention is achieved in that the preparation method of mobile phone battery cover, comprising:
Be provided for the compound film sheet forming described mobile phone battery cover outward appearance texture;
One is arranged with installing the first camera installing hole arranged for mobile phone camera on described compound film sheet;
There is provided an injection mold, described injection mold comprises the front mould with die cavity and has core and the rear mold that coordinates of removable and described front mould;
The air-breathing groove and the getter device that adsorb described compound film sheet are set on described front mould, make described air-breathing groove run through the die cavity of described front mould, and make the air entry subtend of described getter device in described air-breathing groove;
Be provided with the keeper of the mid portion of locating described compound film sheet in the front end of the core of described rear mold, and be provided with the first oblique top of the side part of locating described compound film sheet and the second oblique top in order to arrange the button bit on described mobile phone battery cover side in the side of the core of described rear mold;
Described compound film sheet is located in the die cavity of described front mould, and by described die cavity by spacing for described compound film sheet profiling;
Utilize the described getter device on described front mould to adsorb described compound film sheet by described air-breathing groove, be adsorbed in described die cavity to make described compound film sheet;
The described keeper in described rear mold is utilized to press on the mid portion of described compound film sheet;
Described first oblique top in described rear mold is utilized to press on the side part of described compound film sheet;
Utilize described injection mold to inject required plastic cement main body, and described plastic cement main body is engaged with described compound film sheet;
The position of the first camera installing hole corresponded on described compound film sheet in described plastic cement main body arranges the second camera installing hole be communicated with described first camera installing hole.
Particularly, the preparation method of described compound film sheet comprises:
Material is provided to be the diaphragm base material that aramid fiber, glass fibre or carbon fiber knit become cloth-like;
By described diaphragm base material cutting sub-material;
Described diaphragm base material after cutting sub-material is immersed in epoxy resin solution;
By hot-forming through soaking the described diaphragm base material after described epoxy resin solution;
Described diaphragm base material after hot-forming is removed excess margins, finally to obtain required described compound film sheet.
Further, the thickness arranging described compound film sheet is 0.45-0.50mm.
Particularly, described keeper is made to press on the described compound film sheet of described first camera installing hole.
Further, at least two described keepers are set, and these at least two described keepers are arranged symmetrically along the periphery of described first camera installing hole.
Particularly, described first oblique top is pressed on the described compound film sheet relative with the button bit on described mobile phone battery cover side, and described first oblique top is set and described second oblique top is same parts.
Further, the button bit portion arranging to make described button bit in described first oblique top and the below being positioned at described button bit portion, in order to press on the pressure section on described compound film sheet, and make the lateral cross section of described pressure section be a rectangular configuration.
Particularly, arrange described plastic cement main body to comprise plastic cement front, be positioned at the plastic cement side of described plastic cement front side and be positioned at described compound film sheet edge and the plastic cement bound edge engaged with described plastic cement side, the wall thickness in described plastic cement front is 0.5-0.6mm, the wall thickness of described plastic cement side is 0.45-0.5mm, and the height of described plastic cement bound edge is 0.5-1.0mm.
Particularly, on described front mould and the position being close to described die cavity arranges an intake region, make described intake region be of a size of the insert of 22 × 1.3mm by several length and width and the width bearing of trend along described insert rearranges, and make to arrange gap between described insert to form described air-breathing groove.
The technique effect of the preparation method of mobile phone battery cover of the present invention is: preparation method of the present invention by arranging keeper and the first oblique top on the core of rear mold, thus, while can locating compound film sheet, can also make by keeper locating hole shaping in plastic cement main body and all be hidden by compound film sheet by the locating hole that the first oblique top is shaping in plastic cement main body, avoid forming through hole on mobile phone battery cover, effectively ensure the exquisite appearance degree of mobile phone battery cover; Side by side, by air-breathing groove and getter device, effectively ensure that the location of compound film sheet is arranged.
Further, press on the compound film sheet relative with the button bit on mobile phone battery cover side by making the first oblique top, just the first oblique top and the second oblique top can be made to be same parts, the setting of the second oblique top can be saved with this, that is first oblique top there is the function of the side part of location compound film sheet and the function of the button bit on described mobile phone battery cover side be set, thus save inner space and the processing cost of injection mold.
The present invention also provides mobile phone battery cover, comprise plastic cement main body and bag to be located at outside described plastic cement main body and the compound film sheet with outward appearance texture, described plastic cement main body is provided with and makes described compound film sheet locate fixing locating hole when injection moulding, and described locating hole is hidden by described compound film sheet;
Described compound film sheet is provided with one with installing the first camera installing hole arranged for mobile phone camera, and the position of the first camera installing hole that described plastic cement main body corresponds on described compound film sheet is provided with the second camera installing hole be communicated with described first camera installing hole.
Particularly, described plastic cement main body comprises plastic cement front, is positioned at the plastic cement side of described plastic cement front side, is located at the button bit on described plastic cement side and is positioned at described compound film sheet edge and engages with described plastic cement side to make described compound film sheet bag to be located at plastic cement bound edge in described plastic cement main body, described locating hole comprises the first locating hole and the second locating hole, described first locating hole is located on described plastic cement front, and described second locating hole is located on described plastic cement side.
Further, described first locating hole is by being located at described second camera installing hole.
Further, described first locating hole is provided with at least two, and these at least two described first locating holes are arranged symmetrically along the periphery of described second camera installing hole.
Preferably, described second locating hole is positioned at the below of described button bit, and the quantity of described second locating hole and the quantity correspondent equal of described button bit.
Particularly, the wall thickness in described plastic cement front is 0.5-0.6mm, and the wall thickness of described plastic cement side is 0.45-0.5mm, and the height of described plastic cement bound edge is 0.5-1.0mm.
Particularly, described compound film sheet comprises a diaphragm base material, and the material of described diaphragm base material is aramid fiber, glass fibre or carbon fiber.
Particularly, the outward appearance texture on described compound film sheet is fibrage striped or microgroove.
The technique effect of mobile phone battery cover of the present invention is: mobile phone battery cover of the present invention comprises plastic cement main body and bag and is located at compound film sheet outside plastic cement main body, wherein, the fixing locating hole in compound film sheet location that makes when injection moulding that plastic cement main body is arranged is hidden by compound film sheet, namely being equivalent to this locating hole is blind hole, so avoid these locating holes because exposing the outside of mobile phone battery cover and affecting the exquisite degree of mobile phone battery cover.
Accompanying drawing explanation
Fig. 1 is the FB(flow block) of the preparation method of the mobile phone battery cover of the embodiment of the present invention;
Fig. 2 is the Making programme block diagram of the compound film sheet of the mobile phone battery cover of the embodiment of the present invention;
Fig. 3 is the structural representation of the mobile phone battery cover of the embodiment of the present invention;
Fig. 4 is the schematic diagram of another angle of Fig. 3;
Fig. 5 be the mobile phone battery cover of the embodiment of the present invention A-A to schematic diagram;
Fig. 6 be the mobile phone battery cover of the embodiment of the present invention B-B to schematic diagram;
The schematic diagram of injection mold used when Fig. 7 is the mobile phone battery cover making of the embodiment of the present invention;
Fig. 8 is the structural representation of the bottom of first oblique top used of the mobile phone battery cover of the embodiment of the present invention.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
the embodiment of the preparation method of mobile phone battery cover:
Refer to Fig. 1, below the most preferred embodiment of the preparation method of mobile phone battery cover of the present invention is set forth.
The preparation method of the mobile phone battery cover of the present embodiment, comprising:
S101, be provided for the compound film sheet 11 forming mobile phone battery cover 10 outward appearance texture, particularly, the outward appearance texture of the setting on this compound film sheet 11 is Kev pulling woven striped or knit nylon microgroove;
S102, arrange on compound film sheet 11 one with for mobile phone camera install arrange the first camera installing hole 111;
S103, provide an injection mold 20, injection mold 20 comprises the front mould 21 with die cavity 211 and has core 221 and the removable rear mold 22 coordinated with front mould 21;
S104, the air-breathing groove 212 and the getter device (not indicating in figure) that adsorb compound film sheet 11 are set on front mould 21, air-breathing groove 212 is made to run through the die cavity 211 of front mould 21, and make the air entry subtend of getter device in air-breathing groove 212, wherein, this getter device is air exhauster or vacuum absorption device;
S105, be provided with the keeper 222 of the mid portion of locating compound film sheet 11 in the front end of the core 221 of rear mold 22, preferably, this keeper 222 can be set to a locating dowel, so that production and processing; And be provided with the first oblique top 223 of the side part of locating compound film sheet 11 and the second oblique top 224 in order to arrange the button bit 125 on mobile phone battery cover 10 side in the side of the core 221 of rear mold 22;
S106, compound film sheet 11 is located in the die cavity 211 of front mould 21, and by die cavity 211 by spacing for compound film sheet 11 profiling, particularly, compound film sheet 11 can be formed and the shape of mating outside mobile phone battery cover 10, thus, this compound film sheet comprises diaphragm front and is positioned at the diaphragm side of diaphragm front side;
S107, utilize the getter device on front mould 21 to adsorb compound film sheet 11 by air-breathing groove 212, to make compound film sheet 11 be adsorbed in die cavity 211, avoid compound film sheet 11 to occur the problem of off normal, displacement, so that affect follow-up injection mo(u)lding;
S108, the keeper 222 in rear mold 22 is utilized to press on the mid portion of compound film sheet 11;
S109, the first oblique top 223 in rear mold 22 is utilized to press on the side part of compound film sheet 11;
S110, utilize injection mold 20 to inject required plastic cement main body 12, and plastic cement main body 12 is engaged with compound film sheet 11, wherein, the material of plastic cement main body 12 is Merlon, certainly, also can adopt other injected plastics material; In addition, the joint of plastic cement main body 12 and compound film sheet 11, be mainly plastic cement main body 12 when utilizing plastic cement main body 12 to be in molten condition and adhere to this compound film sheet 11, and compound film sheet 11 just can be made the outside of plastic cement main body 12 is fixed on when plastic cement main body 12 completes cooling curing, ensure that compound film sheet 11 is adhered fixed simply and effectively;
S111, the position of the first camera installing hole 111 corresponded on compound film sheet 11 in plastic cement main body 12 arrange the second camera installing hole 121 be communicated with the first camera installing hole 111, preferably, in plastic cement main body 12, this second camera installing hole 121 is processed by CNC machining center, to ensure the accurate setting of second camera installing hole 121, side by side, after completing the arranging of second camera installing hole 121, the mobile phone battery cover 10 to completing also is needed to clean, to remove dirty, dust.
The preparation method of the present embodiment by arranging keeper 222 and the first oblique top 223 on the core 221 of rear mold 22, thus, while can locating compound film sheet 11, can also make by the first shaping in plastic cement main body 12 locating hole 126 of keeper 222 and all be hidden by compound film sheet 11 by the second locating hole 127 that the first oblique top 223 is shaping in plastic cement main body 12, avoid forming through hole on mobile phone battery cover 10, effectively ensure the exquisite appearance degree of mobile phone battery cover 10; Side by side, by air-breathing groove 212 and getter device, effectively ensure that the location of compound film sheet 11 is arranged.
Refer to Fig. 2, the preparation method of the compound film sheet 11 of the present embodiment, comprising:
S201, material is provided to be the diaphragm base material that aramid fiber, glass fibre or carbon fiber knit become cloth-like;
S202, by diaphragm base material cutting sub-material, to make diaphragm base material form size needed for several, preferably, diaphragm base material is employing laser cutting sub-material, to ensure cutting accuracy, simultaneously, adopt laser cutting, guarantee the phozy limit of fibrous braid, be conducive to improving and produce yield;
S203, will through cutting sub-material after diaphragm base material be immersed in epoxy resin solution;
S204, by hot-forming through soaking the diaphragm base material after epoxy resin solution;
S205, the diaphragm base material after hot-forming is removed excess margins, finally to obtain required described compound film sheet, preferably, diaphragm base material after hot-forming is for adopting laser ablation excess margins, to ensure cutting accuracy, meanwhile, laser cutting is adopted, guarantee the phozy limit of fibrous braid, be conducive to enhancing productivity.
In order to ensure that compound film sheet 11 not only reaches instructions for use but also can avoid waste, preferably, the thickness arranging compound film sheet 11 is 0.45-0.50mm.
Refer to Fig. 7, and composition graphs 3 and Fig. 4, because because injection pressure is comparatively large, compound film sheet 11 part near the first camera installing hole 111 easily occurs that excessive glue runs batch cutting edge of a knife or a sword problem when injection moulding, thus, keeper 222 is made to press on the compound film sheet 11 of the first camera installing hole 111.
In order to ensure that the mid portion of compound film sheet 11 can locate setting preferably, compound film sheet 11 is avoided to occur the problem of rocking, offseting in injection mold 20 inside, at least two keepers 222 are set, and these at least two keepers 222 are arranged symmetrically along the periphery of the first camera installing hole 111, preferably, keeper 222 in the present embodiment is provided with 10, certainly, also can arrange the quantity of keeper according to actual needs.
Refer to Fig. 7, and composition graphs 6, as the preferred version of the present embodiment, make the first oblique top support 223 and press on the compound film sheet 11 relative with the button bit 125 on mobile phone battery cover 10 side, and the first oblique top 223 is set and the second oblique top 224 is same parts.Wherein, due to by making the first oblique top 223 press on the compound film sheet 11 relative with the button bit 125 on mobile phone battery cover 10 side, just the first oblique top 223 and the second oblique top 224 can be made to be same parts, the setting of the second oblique top 224 can be saved with this, that is first oblique top 223 there is the function of the side part of location compound film sheet 11 and the function of the button bit 125 on mobile phone battery cover 10 side be set, thus save inner space and the processing cost of injection mold 20.Have plenty of, in the present embodiment, button bit is provided with 21 again, and relatively, the first oblique top 223 is provided with 21, be then provided with 21 by the locating hole that the first oblique top 223 is shaping.
Refer to Fig. 8, the button bit portion 2231 arranging to make button bit 125 in the first oblique top 223 and the below being positioned at button bit portion 2231, in order to press on the pressure section 2232 on compound film sheet 11, wherein, by the setting of button bit portion 2231, pressure section 2232, be convenient to arrange button bit 125 on the side of plastic cement main body 12 and by the shaping locating hole of the first oblique top 223; Have again, the lateral cross section of pressure section 2232 is made to be a rectangular configuration, the length of rectangular configuration is 2.5mm, width is 0.9-1.1mm, preferably, the width of this rectangular configuration is 1.0mm, to avoid the second locating hole 127 of the too small easy fracture of the width dimensions of pressure section 2232 and bad its correspondence of processing and forming, and the width of pressure section 2232 is excessive easily compound film sheet 11 is extruded oblique top vestige, so that affect the exquisite appearance degree of mobile phone battery cover 10.
Refer to Fig. 5, arrange plastic cement main body 12 comprise plastic cement front 122, be positioned at the plastic cement side 123 of plastic cement front 122 side and be positioned at compound film sheet 11 edge and engage with plastic cement side 123 to make compound film sheet 11 wrap the plastic cement bound edge 124 be located in plastic cement main body 12, the wall thickness in plastic cement front 122 is 0.5-0.6mm, the wall thickness of plastic cement side 123 is 0.45-0.5mm, the height of plastic cement bound edge 124 is 0.5-1.0mm, to make when reaching the quality requirements of required mobile phone battery cover 10, can rationally and effectively by cost control in preferably scope; In addition, the wall thickness of plastic cement side 123 is chosen for 0.45-0.5mm, is conducive to controlling injection moulding and overflows glue.
Refer to Fig. 7, on front mould 21 and the position being close to die cavity 211 arranges an intake region 213, intake region 213 is made to be of a size of the insert 2130 of 22 × 1.3mm by several length and width and the width bearing of trend along insert 2130 rearranges, preferably, this insert 2130 has 37, and makes to arrange gap between insert 2130 to form air-breathing groove 212; Wherein, by the intake region 213 that insert 2130 forms, not only make compound film sheet 11 while fixing, can also guarantee that compound film sheet 11 surface is without air-breathing groove 212 impression so that the exquisite appearance degree affecting mobile phone battery cover 10; Meanwhile, then on front mould 21, an air entry 214 is set relative to the position of intake region 213, arranges so that getter device is communicated with intake region 213.
While ensureing that air-breathing groove can reach function needed for it, can avoid causing because of overprocessing the problem that processing cost goes up, the width arranging air-breathing groove 212 is 0.03-0.05mm, that is, the gap between being equivalent to insert 2130 is set to 0.03-0.05mm.
the embodiment of mobile phone battery cover:
Refer to Fig. 3 to Fig. 6, below the most preferred embodiment of mobile phone battery cover of the present invention is set forth.
The mobile phone battery cover 10 that the present embodiment provides is adopt the preparation method of above-mentioned mobile phone battery cover to be made, particularly, this mobile phone battery cover 10 comprises plastic cement main body 12 and bag to be located at outside plastic cement main body 12 and to have the compound film sheet 11 of outward appearance texture, wherein, the material of plastic cement main body 12 is Merlon, certainly, also other injected plastics material can be adopted; Plastic cement main body 12 is provided with and makes compound film sheet 11 locate fixing locating hole when injection moulding, and locating hole is hidden by compound film sheet 11; Compound film sheet 11 is provided with one with installing the first camera installing hole 111 arranged for mobile phone camera, and the position of the first camera installing hole 111 that plastic cement main body 12 corresponds on compound film sheet 11 is provided with the second camera installing hole 121 be communicated with the first camera installing hole 111.
The mobile phone battery cover 10 of the present embodiment comprises plastic cement main body 12 and wraps the compound film sheet 11 be located at outside plastic cement main body 12, wherein, the fixing locating hole in compound film sheet 11 location that makes when injection moulding that plastic cement main body 12 is arranged is hidden by compound film sheet 11, namely being equivalent to this locating hole is blind hole, so avoid these locating holes because exposing the outside of mobile phone battery cover 10 and affecting the exquisite degree of mobile phone battery cover.
Refer to Fig. 3, plastic cement main body 12 comprises plastic cement front 122, is positioned at the plastic cement side 123 of plastic cement front 122 side, is located at the button bit 125 on plastic cement side 123 and is positioned at compound film sheet 11 edge and engages with plastic cement side 123 to make compound film sheet 11 wrap the plastic cement bound edge 124 be located in plastic cement main body 12, locating hole comprises the first locating hole 126 and the second locating hole 127, first locating hole 126 is located on plastic cement front 122, and the second locating hole 127 is located on plastic cement side 123.Wherein, because the first locating hole 126, second locating hole 127 is separately positioned on plastic cement front 122, plastic cement side 123, the keeper 222 being equivalent to shaping first locating hole 126 is located on plastic cement front 122, and the first oblique top 223 of shaping second locating hole 127 is located on plastic cement side 123, thus, effectively can ensure that the location of the compound film sheet 11 when injection moulding is fixed, avoid occurring rocking, the problem of off normal; Meanwhile, the first locating hole 126, second locating hole 127 is separately positioned on plastic cement front 122, plastic cement side 123, is also conducive to the layout setting of mobile phone battery cover 10.
Refer to Fig. 3 and Fig. 4, and composition graphs 7, because because injection pressure is comparatively large, compound film sheet 11 part near the first camera installing hole 111 easily occurs that excessive glue runs batch cutting edge of a knife or a sword problem when injection moulding, thus, keeper 222 is made to press on the compound film sheet 11 of the first camera installing hole 111, accordingly, by shaping the first locating hole 126 of keeper 222 by being located at second camera installing hole 121 or the first camera installing hole 111.
In order to ensure that the mid portion of compound film sheet 11 can locate setting preferably, compound film sheet 11 is avoided to occur the problem of rocking, offseting in injection mold 20 inside, keeper 222 is set at least two, and these at least two keepers 222 are arranged symmetrically along the periphery of the first camera installing hole 111, then accordingly, first locating hole 126 is provided with at least two, and these at least two the first locating holes 126 are arranged symmetrically along the periphery of second camera installing hole 121 or the first camera installing hole 111.Preferably, the keeper 222 in the present embodiment is provided with 10, and certainly, also can arrange the quantity of keeper according to actual needs, in like manner, correspondingly, the first locating hole 126 is provided with 10, and this locating hole is circular hole, and diameter is 2mm.
Refer to Fig. 6, and composition graphs 7, due to when injection moulding, if press on the compound film sheet 11 relative with the button bit 125 on mobile phone battery cover 10 side by the first oblique top 223, just the first oblique top 223 and the second oblique top 224 can be made to be same parts, the setting of the second oblique top 224 can be saved with this, that is first oblique top 223 there is the function of the side part of location compound film sheet 11 and the function of the button bit 125 on mobile phone battery cover 10 side be set, thus save inner space and the processing cost of injection mold 20, so, correspondingly, the below of button bit 125 is positioned at by the second locating hole 127 that the first oblique top 223 is shaping, and the quantity of the second locating hole 127 and the quantity correspondent equal of button bit 125.Wherein, the button bit of the present embodiment is provided with 21, and relatively, the first oblique top 223 is provided with 21, be then provided with 21 by the second locating hole 127 that the first oblique top 223 is shaping.
Refer to Fig. 5, the wall thickness in the plastic cement front of the present embodiment is 0.5-0.6mm, the wall thickness of described plastic cement side is 0.45-0.5mm, the height of described plastic cement bound edge is 0.5-1.0mm, to make when reaching the quality requirements of required mobile phone battery cover 10, can rationally and effectively by cost control in preferably scope; In addition, the wall thickness of plastic cement side 123 is chosen for 0.45-0.5mm, is conducive to controlling injection moulding and overflows glue.
The compound film sheet 11 of the present embodiment comprises a diaphragm base material, and the material of diaphragm base material is aramid fiber, glass fibre or carbon fiber, so that processing of drawing materials.In order to ensure that compound film sheet 11 not only reaches instructions for use but also can avoid waste, preferably, the thickness of compound film sheet 11 is 0.45-0.50mm.
Have plenty of, the outward appearance texture on compound film sheet 11 is Kev pulling woven striped or knit nylon microgroove, to adapt to popular demand again.
The foregoing is only preferred embodiment of the present invention, its structure is not limited to the above-mentioned shape enumerated, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (17)
1. the preparation method of mobile phone battery cover, is characterized in that, comprising:
Be provided for the compound film sheet forming described mobile phone battery cover outward appearance texture;
One is arranged with installing the first camera installing hole arranged for mobile phone camera on described compound film sheet;
There is provided an injection mold, described injection mold comprises the front mould with die cavity and has core and the rear mold that coordinates of removable and described front mould;
The air-breathing groove and the getter device that adsorb described compound film sheet are set on described front mould, make described air-breathing groove run through the die cavity of described front mould, and make the air entry subtend of described getter device in described air-breathing groove;
Be provided with the keeper of the mid portion of locating described compound film sheet in the front end of the core of described rear mold, and be provided with the first oblique top of the side part of locating described compound film sheet and the second oblique top in order to arrange the button bit on described mobile phone battery cover side in the side of the core of described rear mold;
Described compound film sheet is located in the die cavity of described front mould, and by described die cavity by spacing for described compound film sheet profiling;
Utilize the described getter device on described front mould to adsorb described compound film sheet by described air-breathing groove, be adsorbed in described die cavity to make described compound film sheet;
The described keeper in described rear mold is utilized to press on the mid portion of described compound film sheet;
Described first oblique top in described rear mold is utilized to press on the side part of described compound film sheet;
Utilize described injection mold to inject required plastic cement main body, and described plastic cement main body is engaged with described compound film sheet;
The position of the first camera installing hole corresponded on described compound film sheet in described plastic cement main body arranges the second camera installing hole be communicated with described first camera installing hole.
2. the preparation method of mobile phone battery cover as claimed in claim 1, is characterized in that: the preparation method of described compound film sheet comprises:
Material is provided to be the diaphragm base material that aramid fiber, glass fibre or carbon fiber knit become cloth-like;
By described diaphragm base material cutting sub-material;
Described diaphragm base material after cutting sub-material is immersed in epoxy resin solution;
By hot-forming through soaking the described diaphragm base material after described epoxy resin solution;
Described diaphragm base material after hot-forming is removed excess margins, finally to obtain required described compound film sheet.
3. the preparation method of mobile phone battery cover as claimed in claim 2, is characterized in that: the thickness arranging described compound film sheet is 0.45-0.50mm.
4. the preparation method of mobile phone battery cover as claimed in claim 1, is characterized in that: make described keeper press on the described compound film sheet of described first camera installing hole.
5. the preparation method of mobile phone battery cover as claimed in claim 4, is characterized in that: arrange at least two described keepers, and these at least two described keepers is arranged symmetrically along the periphery of described first camera installing hole.
6. the preparation method of mobile phone battery cover as claimed in claim 1, it is characterized in that: described first oblique top is pressed on the described compound film sheet relative with the button bit on described mobile phone battery cover side, and described first oblique top is set and described second oblique top is same parts.
7. the preparation method of mobile phone battery cover as claimed in claim 6, it is characterized in that: the button bit portion arranging to make described button bit in described first oblique top and the below being positioned at described button bit portion, in order to press on the pressure section on described compound film sheet, and make the lateral cross section of described pressure section be a rectangular configuration.
8. the preparation method of mobile phone battery cover as claimed in claim 1, it is characterized in that: described plastic cement main body is set and comprises plastic cement front, be positioned at the plastic cement side of described plastic cement front side and be positioned at described compound film sheet edge and the plastic cement bound edge engaged with described plastic cement side, the wall thickness in described plastic cement front is 0.5-0.6mm, the wall thickness of described plastic cement side is 0.45-0.5mm, and the height of described plastic cement bound edge is 0.5-1.0mm.
9. the preparation method of mobile phone battery cover as claimed in claim 1, it is characterized in that: on described front mould and the position being close to described die cavity arranges an intake region, make described intake region be of a size of the insert of 22 × 1.3mm by several length and width and the width bearing of trend along described insert rearranges, and make to arrange gap between described insert to form described air-breathing groove.
10. mobile phone battery cover, it is characterized in that: comprise plastic cement main body and bag and to be located at outside described plastic cement main body and the compound film sheet with outward appearance texture, described plastic cement main body is provided with and makes described compound film sheet locate fixing locating hole when injection moulding, and described locating hole is hidden by described compound film sheet;
Described compound film sheet is provided with one with installing the first camera installing hole arranged for mobile phone camera, and the position of the first camera installing hole that described plastic cement main body corresponds on described compound film sheet is provided with the second camera installing hole be communicated with described first camera installing hole.
11. mobile phone battery covers as claimed in claim 10, it is characterized in that: described plastic cement main body comprises plastic cement front, is positioned at the plastic cement side of described plastic cement front side, is located at the button bit on described plastic cement side and is positioned at described compound film sheet edge and the plastic cement bound edge engaged with described plastic cement side, described locating hole comprises the first locating hole and the second locating hole, described first locating hole is located on described plastic cement front, and described second locating hole is located on described plastic cement side.
12. mobile phone battery covers as claimed in claim 11, is characterized in that: described first locating hole is by being located at described second camera installing hole.
13. mobile phone battery covers as claimed in claim 12, is characterized in that: described first locating hole is provided with at least two, and these at least two described first locating holes are arranged symmetrically along the periphery of described second camera installing hole.
14. mobile phone battery covers as claimed in claim 11, is characterized in that: described second locating hole is positioned at the below of described button bit, and the quantity of described second locating hole and the quantity correspondent equal of described button bit.
15. mobile phone battery covers as described in any one of claim 10-14, it is characterized in that: the wall thickness in described plastic cement front is 0.5-0.6mm, the wall thickness of described plastic cement side is 0.45-0.5mm, and the height of described plastic cement bound edge is 0.5-1.0mm.
16. mobile phone battery covers as described in any one of claim 10-14, it is characterized in that: described compound film sheet comprises a diaphragm base material, the material of described diaphragm base material is aramid fiber, glass fibre or carbon fiber.
17. mobile phone battery covers as described in any one of claim 10-14, is characterized in that: the outward appearance texture on described compound film sheet is fibrage striped or microgroove.
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| CN201510026624.5A CN104552757B (en) | 2015-01-19 | 2015-01-19 | The preparation method of mobile phone battery cover and mobile phone battery cover |
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| CN201510026624.5A CN104552757B (en) | 2015-01-19 | 2015-01-19 | The preparation method of mobile phone battery cover and mobile phone battery cover |
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| CN104552757B CN104552757B (en) | 2017-06-23 |
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| CN107244038A (en) * | 2017-07-31 | 2017-10-13 | 苏州春秋电子科技股份有限公司 | Carbon fiber plate burying forming method |
| CN107277326A (en) * | 2017-07-28 | 2017-10-20 | 谭颖 | A kind of construction monitoring camera |
| CN107649630A (en) * | 2017-10-27 | 2018-02-02 | 广东长盈精密技术有限公司 | Mobile phone battery cover processing method |
| CN107911503A (en) * | 2016-08-08 | 2018-04-13 | 广东欧珀移动通信有限公司 | Housing, preparation method and mobile terminal |
| CN108621479A (en) * | 2018-04-24 | 2018-10-09 | 维沃移动通信有限公司 | The forming method and mobile terminal of a kind of membrane structure, membrane structure |
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| CN111385384A (en) * | 2018-12-28 | 2020-07-07 | 广东长盈精密技术有限公司 | Mobile phone middle frame and processing method thereof |
| CN111385383A (en) * | 2018-12-28 | 2020-07-07 | 广东长盈精密技术有限公司 | Processing method of mobile phone |
| CN112318812A (en) * | 2020-09-16 | 2021-02-05 | 深圳市亿铭粤科技有限公司 | Manufacturing process of electronic product rear shell |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523841 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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Granted publication date: 20170623 |