CN108099098A - Insert molding die, housing and preparation method, mobile terminal - Google Patents
Insert molding die, housing and preparation method, mobile terminal Download PDFInfo
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- CN108099098A CN108099098A CN201711079285.2A CN201711079285A CN108099098A CN 108099098 A CN108099098 A CN 108099098A CN 201711079285 A CN201711079285 A CN 201711079285A CN 108099098 A CN108099098 A CN 108099098A
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- Prior art keywords
- mold
- housing
- injection
- resin
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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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
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- 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
- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2055/00—Use of specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of main groups B29K2023/00 - B29K2049/00, e.g. having a vinyl group, as moulding material
- B29K2055/02—ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3431—Telephones, Earphones
- B29L2031/3437—Cellular phones
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Signal Processing (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses insert molding die, housing and preparation method, mobile terminals.Specifically, the present invention proposes a kind of insert molding die, which includes：Mold is provided with injection hole on the mold；And lower mold, injection space is limited between the mold and the lower mold, wherein, the mold has the first turning towards the injection space one side, there is the first distance described in first corner between mold and the lower mold, there is second distance, first distance is more than the second distance between the mold of the side-walls adjacent with first turning and the lower mold.As a result, convenient for injected plastics material preferentially by being filled perpendicular to the direction of injection diaphragm main surface, and along then filling speed is slower on the direction of long side and short side on injection diaphragm main surface, be conducive to alleviate corner's formation bubble.
Description
Technical field
The present invention relates to electronic equipment manufacturing fields, and in particular, to insert molding die, housing and preparation method, shifting
Dynamic terminal.
Background technology
With the raising of the level of consumption, consumer not only pursues industrial products the variation of function, and to its appearance,
Texture etc. also has increasingly higher demands.For example, the mobile terminals such as current mobile phone, tablet computer, more and more using arc
Larger integral housing is spent, to promote user experience.In recent years, in-mold decoration injection molding technology (Insert Mold Three-
Dimensional decoration, IMT or for in-mould injection 3D decoration techniques) be widely used in mobile terminal shell
Manufacturing field.IMT formed product concrete structure can be Surface hardened layer transparent membrane, intermediate printing pattern layer, the back side
Injection molded layers.Because pattern layer is located at centre, good product clarity height, three-dimensional sense, rub resistance can be made, prevent that surface from being scraped
It spends, and the distinctness of color can be kept for a long time, not fugitive color.
However, current insert molding die, housing and preparation method, mobile terminal still have much room for improvement.
The content of the invention
The application is that the discovery of following facts and problem and understanding are made based on inventor：
Inventor has found, when preparing mobile terminal shell with in-mold decoration injection molding technology (IMT) at present, especially with note
When plastic film piece obtains housing appearance, there are bubbles between the housing parts and injection diaphragm that are molded after generally existing injection
The problem of.On the one hand the firmness combined between aeration injection diaphragm and injection structure, causes the later stage using
In the process, appearance layer is easily cracked or lifted off in bubble position；On the other hand, bubble also seriously affects the outer of obtained housing
See effect, particularly when appearance film layer is relatively thin or for smooth effect when, this problem is more obvious.Inventor is by deeply grinding
Study carefully discovery, above-mentioned bubble is generally present in the corner of housing.Therefore, can such as be carried out by the mold to in-mould injection simple
It improves, alleviates injection and lead to the problem of bubble, then it can be on the premise of whole in-mould injection technique not be significantly changed, in solution
State problem.
In view of this, in one aspect of the invention, the present invention proposes a kind of mold for in-mould injection.According to this
The embodiment of invention, the mold include：Mold is provided with injection hole on the mold；And lower mold, the mold
And injection space is limited between the lower mold, wherein, the mold has first towards the injection space one side
Turning has the first distance, with first turning phase between mold and the lower mold described in first corner
There is second distance, first distance is more than described second between the mold and the lower mold of adjacent side-walls
Distance.Thus, it is possible to make the flow channel of the injected plastics material of corner wider, and the flow channel of side-walls injected plastics material compared with
It is narrow.As a result, convenient for injected plastics material preferentially by perpendicular to injection diaphragm main surface direction be filled, and along injection diaphragm master
Then filling speed is slower on the direction of long side and short side in dignity, is conducive to alleviate corner's formation bubble.
In another aspect of this invention, the present invention proposes a kind of foregoing mold of utilization and prepares mobile terminal shell
Method.This method includes：Injection membrane layer is arranged in the lower mold, and mold and the lower mold are closed
Mould；Plastics are injected by injection hole in the injection space between the mold and the lower mold, it is described to obtain
Housing.The housing at least one of has the following advantages as a result,：Without gas between the injection structure of housing and injection membrane layer
Bubble is molded between membrane layer and injection structure and is firmly combined with, and appearance is preferable.
In still another aspect of the invention, the present invention proposes a kind of housing.According to an embodiment of the invention, the housing is
It is prepared using foregoing method.The housing has possessed by housing prepared by foregoing method all as a result,
Feature and advantage, details are not described herein.
In still another aspect of the invention, the present invention proposes a kind of housing.According to an embodiment of the invention, the housing bag
It includes：Housing body, the housing body are formed using foregoing mold by being molded；It is molded membrane layer, the note
Plastic film lamella is arranged on the surface of the housing body.The housing has housing institute prepared by foregoing mold as a result,
The whole features and advantage having, details are not described herein.
In still another aspect of the invention, the present invention proposes a kind of housing.According to an embodiment of the invention, the housing bag
It includes：Housing body, the housing body are formed by in-mould injection, and the housing body has the main surface of quadrangle；
Membrane layer is molded, the injection membrane layer is arranged on the surface of the housing body, wherein, described in the main surface corner
The thickness of housing body, more than the thickness of housing body described in the quadrangle side edge.The housing has the following advantages as a result,
At least one of：Bubble-free between the injection structure of housing and injection membrane layer, is molded between membrane layer and injection structure
It is firmly combined with, appearance is preferable.
In still another aspect of the invention, the present invention proposes a kind of mobile terminal.According to an embodiment of the invention, the movement
Terminal includes housing, and the housing is foregoing, and mainboard and memory are provided in the housing；Screen, the screen
Curtain is arranged on the top of the housing and is connected with the mainboard.There is the mobile terminal foregoing housing to be had as a result,
The whole features and advantage having, details are not described herein.
Description of the drawings
Fig. 1 shows the structure diagram of insert molding die according to an embodiment of the invention；
Fig. 2 shows the structure diagram of mold according to an embodiment of the invention；
Fig. 3 shows the cross-sectional view of insert molding die according to an embodiment of the invention；
Fig. 4 shows the method flow diagram of preparation mobile terminal shell according to an embodiment of the invention；
Fig. 5 shows the structure diagram of insert molding die in accordance with another embodiment of the present invention；
Fig. 6 shows the cross-sectional view of mobile terminal shell according to an embodiment of the invention；
Fig. 7 shows the cross-sectional view of mobile terminal shell in accordance with another embodiment of the present invention；And
Fig. 8 shows the structure diagram of mobile terminal according to an embodiment of the invention.
Reference numeral：
100：Injection mold；110：Mold；120：Lower mold；130：It is molded space；111：First turning；112：Side
Wall；10：Injection hole；D1：First distance；D2：Second distance；200：Housing；210：Housing body；220：It is molded membrane layer；
1000：Mobile terminal.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In one aspect of the invention, the present invention proposes a kind of mold for in-mould injection.Reality according to the present invention
Example is applied, with reference to figure 1, which includes：Mold 110 and lower mold 120.Wherein, mold 110 and
Injection space 130 is limited between lower mold 120, the one side in mold 110 towards injection space 130 has the first turning 111,
There is the first distance D1, at the side wall 112 adjacent with the first turning 111 at first turning 111 between mold and lower mold
Mold and lower mold between there is second distance D2, the first distance D1 to be more than second distance D2.As a result, convenient for injection material
Material preferentially by perpendicular to injection diaphragm main surface direction be filled, and along injection diaphragm main surface on long side and short side
Direction on then filling speed it is slower, be conducive to alleviate corner formed bubble.
According to an embodiment of the invention, the specific location of above-mentioned " mold " and " lower mold " is not particularly limited,
I other words the position of " mold " and " lower mold " can exchange, as long as injection space 130 can be limited.
As previously mentioned, when being molded using inmold injection technique, bubble is generally present in the corner of housing.Invention
People passes through further investigation and finds, this is mainly due to the injected plastics material of corner, the direction for flowing that there are three main tools, i.e.,：Ginseng
Fig. 5 is examined, along A-A ' is shown perpendicular to the direction of paper (and can be regarded as the Z-direction perpendicular to housing body face), along Fig. 5
The direction (X-direction i.e. on the main surface of housing) gone out and the direction along Fig. 5 shown by B-B ' are (i.e. on the main surface of housing
Y-direction).Injected plastics material is filled along above three direction in space 130 is molded, ultimately forms turning for injection structure
Angle Position.And if the filling speed in above three direction is roughly the same or along the X direction and the filling speed of Y-direction
Comparatively fast, then can cause, since Z-direction filling is incomplete, to form bubble around the corner.Therefore, as to mold and lower mold
Structure is improved, and the flow channel that can make the injected plastics material of corner is wider, i.e. D1 shown in Fig. 1 and Fig. 5 compared with
Greatly, and the flow channel of side-walls injected plastics material is relatively narrow, i.e. D2 (and D2 ') shown in Fig. 1 and Fig. 5 is smaller.As a result,
Convenient for injected plastics material preferentially by being filled perpendicular to the direction of injection diaphragm main surface, and it is long on diaphragm main surface along being molded
Then filling speed is slower on side and the direction of short side, is conducive to alleviate corner's formation bubble.
According to a particular embodiment of the invention, above-mentioned first distance can be bigger 0.2~0.5mm than second distance.As a result, one
Aspect can ensure that injected plastics material can be filled preferentially along Z-direction, prevent from forming bubble, will not cause the injection material of corner
Material excessively filling, causes corner blocked up.
It should be noted that in the present invention, above-mentioned first distance D1 is refered in particular at the turning of mold 110 111, first
The maximum of distance between mold and the second mold.It will be appreciated to those of skill in the art that usually in-mould injection is formed
Housing, be around the corner have it is certain thickness, therefore at the different position at turning 111, the first mold and the second mould
The distance between tool may be not completely equivalent.In the present invention, above-mentioned first distance D1 refers in particular to the maximum of above-mentioned distance.It is similar
, above-mentioned second distance D2 is also refered in particular to be on the connected side wall (as shown in the figures 112) in the turning 111, the first mold
And second distance between mold maximum.Thus, it is possible to ensure logical circulation road of the injected plastics material on above-mentioned X and Y-direction
Footpath is narrower than the path circulated in above-mentioned Z-direction.According to an embodiment of the invention, realize that above-mentioned first distance D1 is more than second
The concrete mode of distance D2 is not particularly limited, as long as can realize the first distance D1 is made to be more than second distance D.For example,
According to one embodiment of present invention, current existing injection mold can be utilized, keeps one of mold and lower mold
Shape invariance makes the mold thickness of another the first corner of mold, the mold of the side-walls adjacent less than with first turning
Thickness.Thus, it is possible to which easy is proached talent by the corner to existing mold, injection according to embodiments of the present invention is obtained
Mold.
It will be appreciated to those of skill in the art that on above-mentioned mold or lower mold, the note for injection is provided with
Mould mouth.It is (above-mentioned along the A-A ' directions shown in Fig. 2 with reference to figure 2 and Fig. 3 for example, according to a particular embodiment of the invention
The sectional view of injection mold 100), injection hole 10 can be located at the middle part of mold.
In another aspect of this invention, the present invention proposes a kind of foregoing mold of utilization and prepares mobile terminal shell
Method.According to an embodiment of the invention, with reference to figure 4, this method includes：
S100：Injection membrane layer is arranged in the lower mold, and by mold and the lower mold clamping
According to an embodiment of the invention, in this step, will injection membrane layer be arranged in lower mold, and by mold with
And the lower mold clamping.It will be appreciated to those of skill in the art that in this step, will injection diaphragm be placed in mold with
And in the injection space that is formed of lower mold, subsequently through injection process, to form the agent structure of housing.Wherein, injection membrane
The one side of lamella can have the appearance surfaces such as screen printing ink layer.In this step, being molded membrane layer has exterior design
Or the one side of color, it being bonded mold or lower mold is set, injection hole, which is arranged on, not to be bonded on the mold of injection membrane layer, so as to
The one side that appearance is not provided in injection membrane layer is molded.
S200：Plastics are injected by injection hole in the injection space between the mold and the lower mold
According to an embodiment of the invention, in this step, plastics are injected by injection hole in injection space, to obtain
Housing.According to an embodiment of the invention, in this step, in order to ensure the effect of injection, injected plastics material is made preferentially along injection
Wider access (foregoing Z-direction) flowing that mold is limited, can suitably reduce the speed being molded.
According to an embodiment of the invention, PC can be included for the plastics of in-mould injection technique, and the melting of the plastics refers to
Number is less than 28g/10min.As a result, the plastics not only have relatively low melting temperature and preferable mobility, can meet IMT with
And the needs of IML Shooting Techniques, and when using above-mentioned material, in the sheet surface with membrane material, it is especially printed with ink
The membrane material surface of layer is when being molded, and can also alleviate the deformation of diaphragm and the problems such as red ink occurs for ink layer.
It should be noted that the specific chemical composition of above-mentioned plastics is not particularly limited, as long as can meet in-mould injection
The demand of technique, while in above range under melt index.Those skilled in the art can form material according to injection
Concrete application environment makes choice the specific chemical composition of above-mentioned plastics.For example, above-mentioned plastics can also be PMMA, PET,
PS etc., to meet such as isostructural demand of mobile phone dorsal shield, home electronic panel.According to a particular embodiment of the invention, example
Such as, when preparing for mobile phone when the housing of mobile terminals, PC can be included in the plastics.The plate that in-mould injection is formed as a result,
Material can meet the needs of mobile terminal shell.According to an embodiment of the invention, the melt index of the plastics can be 18-
28g/10min.The plastics can have preferable mobility and toughness when for in-mould injection as a result,.Therefore, according to this
The plastics of inventive embodiments can be used for using inmold injection technique, and manufacture radius of curvature is larger or has labyrinth
Product.
It should be noted that term " melt index " can be by mode familiar to those skilled in the art test and
It obtains.Specifically, its test method can be first to allow plastic pellet in certain time (as it employed herein 10 minutes)
Under interior, certain temperature and pressure (a variety of materials standard is different, and those skilled in the art can select as the case may be), melt
Into plastic liquid, the grams (g) then flowed out by an a diameter of 2.095mm pipes.The numerical value of melt index is bigger, represents
The processing fluidity of the plastic material is better, on the contrary then poorer.Therefore, according to an embodiment of the invention, for IMT injection molded layers
Plastic material needs higher mobility, that is, has higher melt index.
According to an embodiment of the invention, which is by the first resin and the second resin, is formed by melting coextrusion
, wherein, the molecular weight of the first resin is more than the molecular weight of the second resin.It should be noted that term " the molecule of the first resin
Amount ", " molecular weight of the second resin " etc. refer in particular to form the molecular weight of the principal polymeric of the resin.For example, when the first resin or
During the blend that the second resin is formed for two or more polymer, " molecular weight of the first resin ", " point of the second resin
Son amount ", is refered in particular in the resin, the molecular weight of polymer of the mass content more than 50%.It should be noted that term is " poly-
Close object " it should be interpreted broadly, both include the polymer formed by single monomer, the copolymer also formed including various of monomer.
According to an embodiment of the invention, the component of the first resin and the second resin, mixed proportion etc. are not particularly limited, if this first
The molecular weight of resin is more than the molecular weight of the second resin, and the melt index of the plastics formed is less than 28g/10min.By
This, according to the specific chemical composition of the first resin and the second resin, can adjust the ratio of the first resin with larger molecular weight
Example and with smaller molecular weight the second resin ratio, the melt index of the plastics of formation is made to meet in-mould injection work
Skill requirement.Inventor's discovery, other physical and chemical performances of resin, the influence for the melt index of finally formed plastics are smaller.
Thus, it is only required to make the first resin and the molecular weight of the main constituents in the second resin that there is difference, can both pass through
Adjusting to the first resin and the second resin mixed proportion obtains the plastics of melt index meet demand.
According to an embodiment of the invention, the first resin can be the blend for including PC and ABS.The blending of PC and ABS
Object has relatively low melting temperature and higher mobility, disclosure satisfy that the needs of IMT Shooting Techniques.Implementation according to the present invention
Example, which can include PC, and the molecular weight of the PC in second resin can be 20,000-5 ten thousand.Inventor passes through
Numerous studies are found, when the molecular weight of PC in the second resin is in 20,000-5 ten thousand scope, institute after the first resin and the mixing of the second resin
Obtained plastics have preferable toughness, especially suitable for forming mobile terminal shell using in-mould injection.It is according to the present invention
Embodiment, the molecular weight of the PC in the first resin, more than the molecular weight of PC in the second resin.Contain lower molecular weight PC as a result,
The second resin mixed with the first resin containing higher molecular weight PC after, the toughness of the first resin can be adjusted so that first
Resin and the mixed plastics of the second resin have good toughness, while can have preferable mobility and mechanical strength.
According to an embodiment of the invention, the mass ratio of the first resin and the second resin is more than 1：1.In other words, the modeling
In material, the quality of the first resin is more than the quality of the second resin.Inventor has found by many experiments, when above-mentioned mass ratio is excessive
When, the first resin content is excessive, and the toughness for be easy to causeing plastics is poor, it is difficult to ensure carry out in-mould injection when do not impact sheet material or
Ink layer；And aforementioned proportion it is too small when, the second resin content is excessive, and it is too strong to be easy to cause the mobility of plastics, can not utilize mould
Interior injection molding technology forms more complicated injection structure.And when the mass ratio of the first resin and the second resin is more than 1：It, can when 1
With while the plastics toughness is improved, and it can guarantee that other performances such as the hardness of the plastics, mechanical strength are unaffected.
At least one of had the following advantages as a result, using the housing of this method preparation：The injection structure and note of housing
Bubble-free between mold lamella is firmly combined between injection mould lamella and injection structure, and appearance is preferable.
In still another aspect of the invention, the present invention proposes a kind of housing.According to an embodiment of the invention, which is profit
It is prepared with foregoing method.The housing has all special possessed by housing prepared by foregoing method as a result,
Sign and advantage, details are not described herein.
In still another aspect of the invention, the present invention proposes a kind of housing.According to an embodiment of the invention, the housing bag
It includes：Housing body and injection membrane layer.Wherein, housing body can be formed using foregoing mold by being molded
, injection membrane layer is arranged on the surface of the housing body.The housing has shell prepared by foregoing mold as a result,
Whole features and advantage possessed by body, details are not described herein.
In still another aspect of the invention, the present invention proposes a kind of housing.It according to an embodiment of the invention, should with reference to figure 6
Housing 200 includes：Housing body 210 and injection membrane layer 220.According to an embodiment of the invention, housing body 210 can be
It is formed by in-mould injection, housing body has the main surface (not shown) of quadrangle.Injection membrane layer 220 is arranged on
On the surface of housing body.The thickness (D1 as shown in the figures) of housing body described in main surface corner, more than quadrangle
The thickness (D2 as shown in the figures) of side edge housing body.The housing at least one of has the following advantages as a result,：Housing
Injection structure and injection membrane layer between bubble-free, be firmly combined between injection mould lamella and injection structure, appearance effect
Fruit is preferable.
According to a particular embodiment of the invention, which can be by being molded and shape using previously described mold
Into.The housing body 210 is on 4 edges of quadrangle, such as direction of rectangular two long sides and two short sides, side
The thickness of edge upper casing phosphor bodies is respectively less than the thickness of main surface corner housing body.Specifically, the housing body can be profit
It is formed with mold injection as shown in Figure 5, the housing is along the cross-section structure on the A-A ' directions shown in Fig. 5 as schemed
Shown in 6, the housing is as shown in Figure 7 along the cross-section structure on the B-B ' directions shown in Fig. 5.In other words, shown in Fig. 6
D2 ' and Fig. 7 shown in D2, be respectively less than figure shown in D1.Thus, it is possible to it avoids forming the housing body
In the process, bubble is formed around the corner.
According to an embodiment of the invention, which can further include the side frame being connected with main surface.Side
Frame is set around main surface, and is extended along perpendicular to the direction of main surface.In other words, which can be with side frame
Integrated shell.
In still another aspect of the invention, the present invention proposes a kind of mobile terminal.According to an embodiment of the invention, reference chart
8, which includes housing 200 and screen (not shown), and housing 200 is foregoing, in housing 200
Mainboard and memory (not shown) are provided with, screen is arranged on the top of housing and is connected with mainboard (not to be shown in figure
Go out).As a result, the mobile terminal 1000 have the advantages that possessed by foregoing housing whole features and, it is no longer superfluous herein
It states.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It is combined in an appropriate manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the different embodiments described in this specification or example and different embodiments or exemplary feature
It closes and combines.
Claims (16)
1. a kind of mold for in-mould injection, which is characterized in that including：
Mold is provided with injection hole on the mold；And
Lower mold limits injection space between the mold and the lower mold,
Wherein, the mold has the first turning, mold described in first corner towards the injection space one side
And there is the first distance, the mold of the side-walls adjacent with first turning and described between the lower mold
There is second distance, first distance is more than the second distance between lower mold.
2. mold according to claim 1, which is characterized in that first distance is bigger than the second distance by 0.2~
0.5mm。
3. mold according to claim 1, which is characterized in that the mold thickness of first corner, less than with it is described
The mold thickness of the adjacent side-walls in first turning.
4. mold according to claim 1, which is characterized in that the injection hole is located at the middle part of the mold.
A kind of 5. method that mobile terminal shell is prepared using claim 1-4 any one of them mold, which is characterized in that institute
The method of stating includes：
Injection membrane layer is arranged in the lower mold, and by mold and the lower mold clamping；
Plastics are injected by injection hole in the injection space between the mold and the lower mold, it is described to obtain
Housing.
6. according to the method described in claim 5, it is characterized in that, the plastics include PC, the melt index of the plastics is small
In 28g/10min.
7. according to the method described in claim 6, it is characterized in that, the plastics are by the first resin and the second resin, lead to
Cross what melting coextrusion was formed, wherein, the molecular weight of first resin is more than the molecular weight of second resin.
8. the method according to the description of claim 7 is characterized in that second resin includes PC, PC in second resin
Molecular weight be 20,000~50,000.
9. the method according to the description of claim 7 is characterized in that first resin is the blend for including PC and ABS.
10. method according to claim 8 or claim 9, which is characterized in that the molecular weight of the PC in first resin is more than
The molecular weight of PC in second resin.
11. the method according to the description of claim 7 is characterized in that quality of first resin and second resin
Than being more than 1：1.
12. a kind of housing, which is characterized in that the housing is prepared using claim 5-11 any one of them method.
13. a kind of housing, which is characterized in that the housing includes：
Housing body, the housing body are formed using claim 1-4 any one of them mold by being molded；
Membrane layer is molded, the injection membrane layer is arranged on the surface of the housing body.
14. a kind of housing, which is characterized in that the housing includes：
Housing body, the housing body are formed by in-mould injection, and the housing body has the main surface of quadrangle；
Membrane layer is molded, the injection membrane layer is arranged on the surface of the housing body,
Wherein, the thickness of housing body described in the main surface corner, more than housing body described in the quadrangle side edge
Thickness.
15. housing according to claim 14, which is characterized in that the housing body further comprises：
The side frame being connected with the main surface, the side frame are set around the main surface, and along perpendicular to the main body
The direction extension in face.
16. a kind of mobile terminal, which is characterized in that including：
Housing, the housing are claim 12-15 any one of them, and mainboard and memory are provided in the housing；
Screen, the screen are arranged on the top of the housing and are connected with the mainboard.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711079285.2A CN108099098A (en) | 2017-11-06 | 2017-11-06 | Insert molding die, housing and preparation method, mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711079285.2A CN108099098A (en) | 2017-11-06 | 2017-11-06 | Insert molding die, housing and preparation method, mobile terminal |
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| CN108099098A true CN108099098A (en) | 2018-06-01 |
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| CN201711079285.2A Pending CN108099098A (en) | 2017-11-06 | 2017-11-06 | Insert molding die, housing and preparation method, mobile terminal |
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| CN109366884A (en) * | 2018-11-22 | 2019-02-22 | 麦格威饰件科技（苏州）有限公司 | A kind of two-sided IML overlay film injection mold |
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Address after: 523860 No. 18, Wu Sha Beach Road, Changan Town, Dongguan, Guangdong Applicant after: OPPO Guangdong Mobile Communications Co., Ltd. Address before: 523860 No. 18, Wu Sha Beach Road, Changan Town, Dongguan, Guangdong Applicant before: Guangdong OPPO Mobile Communications Co., Ltd. |
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