CN104859098B - The preparation method of the mould of front cover component and the mould - Google Patents

The preparation method of the mould of front cover component and the mould Download PDF

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Publication number
CN104859098B
CN104859098B CN201510189558.3A CN201510189558A CN104859098B CN 104859098 B CN104859098 B CN 104859098B CN 201510189558 A CN201510189558 A CN 201510189558A CN 104859098 B CN104859098 B CN 104859098B
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CN
China
Prior art keywords
mould
glass plate
dynamic
cover component
cover
Prior art date
Application number
CN201510189558.3A
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Chinese (zh)
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CN104859098A (en
Inventor
成蛟
Original Assignee
广东欧珀移动通信有限公司
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Priority to CN201510189558.3A priority Critical patent/CN104859098B/en
Publication of CN104859098A publication Critical patent/CN104859098A/en
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Publication of CN104859098B publication Critical patent/CN104859098B/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/2602Mould construction elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23POTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/007Making specific metal objects by operations not covered by a single other subclass or a group in this subclass injection moulding tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection 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
    • B29C45/14065Positioning or centering articles in the mould
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/33Moulds having transversely, e.g. radially, movable mould parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/4005Ejector constructions; Ejector operating mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection 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
    • B29C45/14065Positioning or centering articles in the mould
    • B29C2045/14122Positioning or centering articles in the mould using fixed mould wall projections for centering the insert

Abstract

A kind of mould of front cover component, the mould of the front cover component is integrally formed out glass plate, and enclose in the frame of the glass plate, the mould of the front cover component includes fixed half and moving half, the cover half die cavity, the inner surface of the die cavity includes mating surface, and outward appearance forming surface, the dynamic model is provided with the core stretched out towards the die cavity, the top end face of the core includes binding face, and inner side forming surface, the binding face is used to fit with the lower surface of glass plate, masking face of the inner side forming surface to mold frame, the masking face is to cover the non-display area.Ink layer is omitted so as to the inner side of front cover component, further such that front cover component can form integrated terminal protecgulum with display screen, the service efficiency of front cover component is improved.

Description

The preparation method of the mould of front cover component and the mould

Technical field

The present invention relates to the mould and the system of the mould in mould field, more particularly to a kind of front cover component Make method.

Background technology

With development in science and technology, each Terminal Type, especially such as mobile phone, tablet personal computer movable termination are made more and more widely With to its visual experience requirement also more and more higher.In the prior art, the mould of front cover component is generally all to be divided to two molds Translucent plate member and frame are fabricated separately respectively, then by translucent plate member load frame in, by adhering process so that frame and Translucent plate member is combined to form robust structure, and on the one hand such a mould can cause the combination of frame and translucent plate member not It is good, cause the presence of gap between translucent plate member and frame, influence front cover component appearance visual effect, another aspect frame with Built on the sand, translucent plate member is easily separated from the frame to the structure of translucent plate member, meanwhile, it can also be penetrated between frame and translucent plate member The performance of dust impurity effect terminal.

The content of the invention

In view of this, embodiments of the invention provide a kind of mould for the front cover component for improving production efficiency, to solve Certainly front cover component structure built on the sand, the problem of performance is not good.

First aspect is there is provided a kind of mould of front cover component, to mold front cover component, the front cover component Mutually cover to form terminal protecgulum with display screen, the display screen includes a display surface, the display surface has viewing area and non-aobvious Show area, the non-display area is around the viewing area, it is characterised in that the mould of the front cover component is integrally formed out Glass plate, and enclose in the frame of the glass plate, the mould of the front cover component includes fixed half and moving half, described fixed Mould is provided with an opening towards the die cavity of the dynamic model, and the inner surface of the die cavity includes mating surface, and is smoothly connected on described The outward appearance forming surface of mating surface the week side of boss, the mating surface is used to fit with the upper surface of the glass plate, and the forming surface is used To mold the appearance of the frame, the dynamic model is slided along the die cavity opening direction and set, and is closed or opened and be described The die cavity of cover half, the dynamic model is provided with the core stretched out towards the die cavity, and the top end face of the core includes binding face, and The smooth inner side forming surface for being connected on binding face the week side of boss, the binding face is used to fit with the lower surface of glass plate, it is described under The relatively described upper surface in surface is set, masking face of the inner side forming surface to mold frame, and the masking face is to cover The non-display area, the binding face is provided with sucker, and the sucker holds the lower surface of the glass plate, and the dynamic model is provided with Detent mechanism, the detent mechanism is positioned to the glass plate, by the appearance of the glass plate the dynamic model slip Alignd on direction the mating surface, the dynamic model is provided with injection port, the injection port is towards the type intracavitary administration frame raw material.

With reference in a first aspect, in the first possible implementation of first aspect, the dynamic model is located at provided with multiple The pin hole of the core the week side of boss, the detent mechanism includes multiple taper pins, and it is described many that the multiple taper pin corresponds insertion In individual pin hole, the taper pin includes first end and the second end being oppositely arranged, and the first end is fixed on pushing away for the dynamic model On dynamic seat, the pusher seat promotes the taper pin along the dynamic model glide direction, the second end of the taper pin close to the core, The week side of boss at second end is provided with a positionable wall towards the glass plate, and the positionable wall of the multiple taper pin is to the glass plate The week side of boss positioned.

Any of the first possible implementation with reference to first aspect or first aspect possible implementation, In second of possible implementation of first aspect, the detent mechanism also includes locating dowel, and the locating dowel is arranged at On the top end face of the core, the locating dowel is to insert in the positioning hole of the glass plate.

With reference in a first aspect, in the third possible implementation of first aspect, the mating surface is plane or circle Cambered surface, the forming surface is plane or arc surface.

With reference in a first aspect, in the 4th kind of possible implementation of first aspect, the mating surface is in the core Top end face orthographic projection region it is suitable with the binding face.

With reference in a first aspect, in the 5th kind of possible implementation of first aspect, the mating surface is in the core Top end face orthographic projection region in the binding face.

With reference in a first aspect, in the 6th kind of possible implementation of first aspect, the dynamic model sets multiple described Sucker, the multiple sucker includes a central sucker for corresponding to the glass plate geometric center, and four correspond to institute The periphery sucker in four corners of glass plate is stated, the central sucker is provided with the gas hole blown towards the glass plate, described Periphery sucker is provided with the suction hole towards the glass plate air-breathing, and the gas hole and the suction hole are connected with by tracheae Cylinder, the cylinder is fixed on the outside of dynamic model.

With reference to the 6th kind of possible implementation of first aspect, in the 7th kind of possible implementation of first aspect In, the mating surface of the die cavity is provided with cover half gas hole, and the cover half gas hole is blown towards the glass plate.

Second aspect, embodiments of the invention also provide a kind of preparation method of mould, and the mould makes The mould of the method front cover component above-mentioned to make, the preparation method of the mould includes step:

Certain formwork parts are provided, the preset shape of the die cavity is processed on the cover half plate;

Using mirror finish, the mating surface, and the forming surface smoothly connected with the mating surface are processed;

One dynamic model plate is provided, the core is processed on the dynamic model plate;

The detent mechanism is processed on the dynamic model plate, the mismachining tolerance of the detent mechanism is no more than 0.01mm;

Complete other standards part or/and the processing of non-standard component of the mould;

Each part of the mould is assembled.

With reference to second aspect, in the first possible implementation of second aspect, the step of the mirror finish in The die cavity with preset shape is first subjected to milling, is then polished, the inside surface roughness 0.05 of the die cavity is micro- Rice is to 0.08 micron.

The mould for the front cover component that the present invention is provided and the preparation method of the mould pass through in the die cavity The mating surface and the forming surface smoothly connected with the mating surface are set, and institute is set in the top end face of the core State binding face, and the smooth inner side forming surface for being connected on binding face the week side of boss.The appearance of the frame and the outward appearance of glass plate Face forms a smooth surface, the binding face and the inner side forming surface one burnishing surface of formation so that outside front cover component Visual effect is seen to improve, meanwhile, front cover component can be mounted directly on display screen, so as in the inner side province of front cover component Slightly ink layer, further such that front cover component can form integrated terminal protecgulum with display screen, improves making for front cover component Use efficiency.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.

Fig. 1 is the decomposing schematic representation of the mould of the front cover component of the more excellent embodiment offer of the present invention;

Fig. 2 is the schematic diagram of the dynamic model of the mould of Fig. 1 front cover component;

Fig. 3 is the schematic diagram of the cover half of the mould of Fig. 1 front cover component;

Fig. 4 is the schematic diagram of the front cover component molded of the mould of Fig. 1 front cover component;

Fig. 5 is the fixed half and moving half of another embodiment that the present invention is provided, and front cover component schematic diagram;

Fig. 6 is the schematic flow sheet of the preparation method for the mould that the present invention is provided.

Embodiment

Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is carried out clear Chu, it is fully described by.Obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiment party Formula.Based on the embodiment in the present invention, those of ordinary skill in the art are obtained on the premise of creative work is not made The every other embodiment obtained, should all belong to the scope of protection of the invention.

Also referring to the mould 100 of Fig. 1, Fig. 2 and Fig. 3, preferred embodiment of the present invention front cover component provided, use To mold front cover component, front cover component mutually covers to form terminal protecgulum with display screen, and display screen includes a display surface, display surface With viewing area and non-display area, non-display area is around viewing area.It is understood that the display screen 10 can be LCD (Liquid Crystal Display, liquid crystal flat panel display) liquid crystal display or LCM (LCD Module, liquid crystal display Module) component.Display screen 10 especially can be wide variety of touch screen, and such as display screen 10 can be that touch control layer is embedded into liquid In-cell touch screens or touch control layer in brilliant pixel are arranged at the on-cell touch screens on liquid crystal pixel, can be with It is the full sticking touch control screen that touch control layer fits in cover plate entirely.The terminal protecgulum can apply in various terminal equipment, the terminal Equipment can be mobile phone, notebook computer, tablet personal computer, electronic reader, electron album, display etc..It is preceding in the present embodiment The mould 100 of cap assemblies is integrally formed out glass plate 1, and encloses the frame 2 in glass plate 1.

The mould 100 of front cover component includes cover half 10 and dynamic model 20, and cover half 10 is open towards dynamic model 20 provided with one Die cavity 11.The inner surface of die cavity 11 includes mating surface 111, and black region is mating surface 111 in Fig. 2, and smooth be connected on is matched somebody with somebody The outward appearance forming surface 112 of the week side of boss of conjunction face 111.Mating surface 111 is used to fit with the upper surface 1a of glass plate 1.Outward appearance forming surface The 112 appearance 2a to mold frame 2.

Dynamic model 20 is slided along the opening direction of die cavity 11 and set, and closes or open the die cavity 11 of cover half 10.Dynamic model 20 is provided with The core 21 stretched out towards die cavity, the top end face of core 21 includes binding face 211, and Fig. 1 grey areas are binding face 211, with And the inner side forming surface 212 of binding face the week side of boss is smoothly connected on, binding face 211 is used to fit with the lower surface 1b of glass plate, Lower surface 1b opposing uppers 1a is set, masking face 2b of the inner side forming surface 212 to mold frame, and masking face 2b is used to Cover non-display area.Binding face 211 is provided with sucker 211a, and sucker 211a holds lower surface 1b.Dynamic model 20 is provided with detent mechanism 22, detent mechanism 22 is positioned to glass plate 1, cooperation that the appearance 1a of glass plate 1 is alignd in the glide direction of dynamic model 20 Face 111.Dynamic model 20 is provided with injection port 23, and injection port 23 injects frame raw material towards die cavity 11 is interior.It is understood that protecgulum group Part can be the protecgulum of mobile phone, and the appearance 2a of the frame 2 and upper surface 1a of glass plate 1 is the one side towards user.For example, When front cover component is the protecgulum of touch-control mobile phone, the appearance 2a of the frame 2 and upper surface 1a of glass plate 1 can be the sight of user See and touch operation surface, masking face 2b and lower surface 1b fit the display surface of display screen jointly, cover face 2b and fit in display screen Non-display area, lower surface 1b fits in the viewing area of display screen, so that when the front cover component is with display screen formation terminal protecgulum, Scuncheon can be omitted in and be coated with ink layer, that is, simplify the visual effect of terminal protecgulum so that the integration of terminal protecgulum, had Effect improves the production efficiency of the mould of front cover component.

By the outward appearance forming surface 112 for setting mating surface 111 in die cavity 11 and smoothly connecting with mating surface 111, and The upper surface 1a of glass plate 1 is alignd mating surface 111 in the glide direction of dynamic model 20 by detent mechanism 22.And then cause side Frame 2 closely takes shape in the week side of boss of glass plate 1, and the appearance 2a and glass plate 1 of frame 2 appearance 1a formation one are smooth There is no gap, stabilized structure between surface, and glass plate 1 and frame 2.Formed using binding face 211 and inner side forming surface 212 One burnishing surface so that the apparent visual effect of front cover component is improved, meanwhile, front cover component can be mounted directly on display screen On, so as to omit ink layer in the inner side of front cover component, further such that front cover component can form one with display screen The terminal protecgulum of change, improves the service efficiency of front cover component.

In the present embodiment, cover half 10 is rectangle plate.Cover half 10 includes a first smooth die joint 101, the first parting Face 101 is parallel to the cross section of cover half 10, and the first die joint 101 is engaged with dynamic model 20, near closed hollow ring 11.Die cavity 11 is to set The groove being placed on the first die joint 101.The openend end face and the flush of the first die joint 101 of die cavity 11, in order to dynamic model 20 more tight closure die cavities 11 so that the appearance 2a Forming Qualities of frame 2 are good, improve the mould of front cover component 100 quality of production.Mating surface 111 is arranged at the bottom of die cavity 11, and outward appearance forming surface 112 is extended to by the opening of die cavity 11 matches somebody with somebody The periphery in conjunction face 111.Outward appearance forming surface 112 is the plane of bending, and mating surface 111 is plane.Outward appearance forming surface 112 and mating surface 111 collectively form a rectangular recess.Certainly, in other embodiments, forming surface can also be arc surface, and mating surface also may be used To be arc surface.

In the present embodiment, dynamic model 20 is rectangle plate, the cross section of the cross section of dynamic model 20 parallel to cover half 10.Dynamic model 20 Including a second smooth die joint 201, cross section of second die joint 201 parallel to dynamic model 20.Second die joint 201 and One die joint 101 is engaged, when dynamic model 20 closes the die cavity 11 of cover half 10, the second die joint 201 and the phase of the first die joint 101 Laminating, so that die cavity 11 is closed between cover half 10 and dynamic model 20.Second die joint 201 is located at the week side of boss of core 21.Second parting It can be to set groove to be that boss is set between face 201 and core 21, can also be that the second die joint 201 extends to type On the side wall of core 21.Core 21 is rectangular boss, so that frame 2 is square ring.The geometric centre axes and die cavity of core 21 11 geometric centre axes align.So that the regular shape of frame 2.Under the top end face and glass plate 1 of core 21 Surface 1b fits.Lower surface 1b is plane, and the end face of top 211 of core 21 is plane.

In the present embodiment, sucker 211a includes the card 211b for being resisted against glass plate 1, when the joint face 1b of glass plate 1 is pasted During together in 211 end face of top, card and the end face flush of top 211.Sucker 211a is slidably connected to core 21, the sucker 211a back ofs the body From one end that the side of glass plate 1 is fixedly connected with push rod 211c.Push rod 211c is fixed on dynamic model 20 in one end away from sucker 211a In pusher seat 24.Pusher seat 24 promotes sucker 211a to be slided along the glide direction parallel to dynamic model 20.When dynamic model 20 is with respect to cover half During 10 unlatching, push rod 211c promotes sucker 211a so that glass plate 1 and frame 2 depart from core 21, so that convenient take out glass plate 1 and frame 2.In other embodiments, sucker, which can also be, is fixed on core;By being set on core and sucker phase point From push rod, utilize push rod release glass plate.

Further, dynamic model 20 is provided with multiple pin holes 210 positioned at the week side of boss of core 21, and detent mechanism 22 includes multiple oblique Pin 231, multiple taper pins 231 are corresponded in the multiple pin holes 210 of insertion.Taper pin 231 includes the first end 231a being oppositely arranged It is fixed on the second end 231b, the second end 231b in the pusher seat 24 of dynamic model 20, pusher seat 24 is promoted along the glide direction of dynamic model 20 Taper pin 231.The first end 231a of taper pin 231 is provided with a positioning towards glass plate 1 close to core 21, first end 231a the week side of boss Wall 231c.The positionable wall 231c of multiple taper pins 231 is positioned to the week side of boss of glass plate 1.

In the present embodiment, multiple pin holes 210 are arranged on the second die joint 201, and positioned at the surrounding of core 21, taper pin Dynamic model 20 is run through in hole 210.So as to which multiple taper pins 231 pass through dynamic model 20, taper pin 231 is slided in pin hole 210.Specifically, many Individual taper pin 231 includes two the first taper pin 23a, two the second taper pin 23b, three the 3rd taper pin 23c and three the 4th taper pins 23d.First taper pin 23a is rotationally symmetrical in the geometric center lines of core 21 with respect to the second taper pin 23b, and the 3rd taper pin 23c is with respect to Four taper pin 23d are rotationally symmetrical in the geometric center lines of core 21.When dynamic model 20 is closed with respect to cover half 10, taper pin 231 is towards dynamic model 20 deviate from the Slideslip of cover half 10 1, and the positionable wall 231c of taper pin 231 is moved to away from the direction of core 21, the first end of taper pin 231 231a is slid into pin hole 210, and the first end 231a end faces and the flush of the second die joint 201 of taper pin 231.When dynamic model 20 When being opened with respect to cover half 10, taper pin 231 is slided towards cover half 10, and taper pin 231 slides into predeterminated position, the first taper pin 23a positioning Wall 231c is positioned to the first side 01 of glass plate 1, the second side of the second taper pin 23b positionable wall 231c to glass plate 1 Face 02 is positioned, and the 3rd taper pin 23c positionable wall 231c is positioned to the 3rd side 03 of glass plate 1, the 4th taper pin 23d Positionable wall 231c the 4th of glass plate 1 side 04 is positioned.The opposing second side 02 of first side 01 is set, the 3rd side Relative 4th side 04 in face 03 is set.In present embodiment, one is set to fix limited block 241, pusher seat 24 in pusher seat 24 When the end face of promotion limited block 241 is resisted against dynamic model 20, pusher seat 24 stops promoting taper pin 231, realizes that taper pin 231 slides into pre- If position, and then realize positioning of the taper pin 231 to glass plate 1.In other embodiments, it can also be according to glass plate 1 Size, calculates the pre-determined distance that taper pin 231 needs to promote, so as to promote pre-determined distance using pusher seat 24, realizes taper pin 231 Positioning.

In present embodiment, the raw material of frame 2 are the plastic cement of melting.I.e. frame 2 is the plastic cement frame of rectangular ring,

Further, detent mechanism 22 also includes locating dowel 232, and locating dowel 232 is arranged at the end face of top 211 of core 21 On, locating dowel 232 is to insert in the positioning hole 1c of glass plate 1.

In the present embodiment, if front cover component is the protecgulum of mobile phone, positioning hole 1c listens sound hole for front cover component.Positioning hole 1c is bar hole, the bar shaped boss of locating dowel 232.When relative 10 closure of dynamic model 20, locating dowel 232 is through positioning hole 1c and matches somebody with somebody Conjunction face 111.In other embodiments, it can also be and locating dowel be set on the joint face 1b of glass plate 1, on the top of core 21 Hold 211 end faces that positioning hole is set.

Further, mating surface 111 is suitable with binding face 211 in the orthographic projection region of the top end face of core 21.

In the present embodiment, when glass plate 1 fits in the top end face of core 21, the lower surface 1b of glass plate 1 is with fitting Face 211 aligns, and the upper surface 1a and lower surface 1b of glass plate 1 align.When dynamic model 20 is closed with respect to cover half 10, glass plate 1 the week side of boss and outward appearance forming surface 102, and die joint 201 collectively form the shaping chamber of frame 2.To the shaping chamber of frame 2 The raw material of interior injection frame 2, treat that raw material are cooled to solid, that is, mold frame 2.

Specifically, as shown in figure 4, frame 2 includes framework 25, the rectangular shape of section of framework 25, framework 25 includes relative Side is offered on the top surface 25a and bottom surface 25b of setting, and the lateral surface 25c and medial surface 25d being oppositely arranged, medial surface 25d Frame flange 250, frame flange 250 is arranged at frame flange 250 away from top surface 25a sides adjacent to top surface 25a, masking face 2b.Top Face 25a and lateral surface 25c constitutes the appearance 2a of frame 2.Frame flange 250 include be connected to appearance 2a and masking face 2b it Between interior junction 2c.Interior junction 2c is combined with the week side of glass plate 1.Interior junction 2c can set groove or projection, glass The week side of boss of plate 1 can be correspondingly provided with the projection being engaged or groove.So as to which frame 2 combines the edge of glass plate 1, and then increase side The bond strength of frame 2 and glass plate 1.

Further, the present invention is provided in another embodiment, as shown in figure 5, top end face of the mating surface 111 in core 21 Orthographic projection region overlay binding face 211, black region is mating surface 111 in Fig. 5, and gray area is binding face 211.

In the present embodiment, when glass plate 1 fits in the top end face of core 21, the lower surface 1b of glass plate 1 is with fitting Face 211 aligns, and the area for being upper surface 1a is more than lower surface 1b area.

Specifically, as shown in figure 5, frame flange 250 is close to bottom surface 25b, the periphery of glass plate 1 is carried on the back in frame flange 250 Exist from bottom surface 25b sides least partially overlapped.The periphery of glass plate 1 is fixed on frame flange 250, and covers frame flange 250.In the present embodiment, the masking face 2b of frame flange 250 is close to bottom surface 25b, and frame flange 250 also includes relative masking face 2b The visible surface 2c of setting.Visible surface 2c and top surface 25a and medial surface 25d formation frames groove 251.The upper surface 1a of glass plate 1 With top surface 25a flushes.Correspondence frame groove 251 opens up glass plate flange 1c, glass plate flange 1c on all sides of glass plate 1 Adjacent upper surface 1a.Glass plate flange 1c is housed to match with frame groove 251, glass plate flange 1c with frame groove 251, glass The visible surface 2c of glass plate flange 1c covering frames flange 250.The lower surface 1b of glass plate 1 and masking face 2b flushes.So that Obtain the area increase of glass plate 1 so that frame 2 seems narrower so that the Rimless effect of front cover component is stronger.In other realities Apply in mode or the edge of glass plate 1 sets step, step matches with frame flange 250.

Further, as shown in Figure 1, Figure 2 and Figure 3, dynamic model 20 sets multiple sucker 211a, multiple sucker 211a to include one The individual central sucker 261 corresponding to the geometric center of glass plate 1, and four periphery suckers corresponding to four corners of glass plate 262, central sucker 261 is provided with the gas hole 261a blown towards glass plate 1, and periphery sucker 262 is provided with towards the air-breathing of glass plate 1 Suction hole 262a, gas hole 261a and suction hole 262a cylinder 4 is connected with by tracheae 3, cylinder 4 is fixed on outside dynamic model 20 Side.

In the present embodiment, when dynamic model 20 is opened with respect to cover half 10, multiple sucker 211a stretch out core 21, by glass plate 1 It is positioned on multiple sucker 211a, glass plate 1 is positioned using taper pin 231, controls cylinder 4, four suction hole 262a courts The joint face 1b air-breathings of glass 1, so that glass plate 1 is at atmosheric pressure, are fixed on four periphery sucker 262a, convenient dynamic Mould 20 is closed with respect to cover half 10, facilitates taper pin 231 to retract.Gas hole 262a towards joint face 1b geometric center are blown, on the one hand Prevent joint face 1b to be bonded dust or impurity, on the other hand make it that the geometric center of glass plate 1 is slightly raised, prevent glass plate 1 Periphery damaged by pressure by die cavity 11, additionally it is possible to prevent glass plate 1 from fitting in the end face of top 2111 of core 21, so that protecgulum group Part can smoothly take out.

Further, the mating surface 111 of die cavity 11 is provided with cover half gas hole 111a, cover half gas hole 111a towards glass plate 1 blows.

In the present embodiment, when dynamic model 20 is closed with respect to cover half 10, frame 2 is taken shape on glass plate 1, it is necessary to open dynamic model 20 With type film 10, to prevent the appearance 1a of glass plate 1 to be adsorbed in the mating surface 111 of die cavity 11, therefore set in mating surface 111 Put cover half gas hole 111a.Cover half gas hole 111a blows to the appearance 1a of glass plate 1 so that the both sides air pressure of glass plate 1 It is identical, so that glass plate 1 can smoothly depart from die cavity 11.

The present invention also provides a kind of preparation method of mould, and mould preparation method is to make front cover component Mould 100.The preparation method of mould includes step:

S01:Certain formwork parts are provided, the preset shape of die cavity 11 is processed on cover half plate.

In the present embodiment, cover half plate is rectangle steel plate, it is preferred that the material of cover half plate uses mirror surface mould Steel.By the way that cover half plate to be milled out to the preset shape of die cavity 11 in milling machine, i.e., each size of die cavity 11 is reserved into certain remain Remaining processing dimension, specifically, reserved 0.1~0.2 remaining processing dimension, CNC milling machine to be utilized accurately processes die cavity 11 Inner surface.

S02:Using mirror finish, mating surface 111, and the outward appearance forming surface smoothly connected with mating surface 111 are processed 112。

In the present embodiment, the inner surface of die cavity 11, mating surface 111 and forming surface 112 are accurately milled out using CNC milling machine Milling be to be carried out in same procedure, it is to avoid be further continued for milling forming surface 112 after stopping because of milling mating surface 111 and occur Segment difference situation so that the docking of mating surface 111 and forming surface 112 is more smooth.CNC milling machine processing has default shape 0.01~0.02mm remaining processing dimension is reserved after the die cavity 11 of shape, the interior table to die cavity 11 is then realized by glossing The removing of facestock material, reaches the pre-set dimension of die cavity 11, while realize that the inner surface of die cavity 11 reaches minute surface rank, die cavity 11 Slightly the requirement of degree of wiping reaches 0.05 micron to 0.08 micron to inner surface.

S03:One dynamic model plate is provided, core 21 is processed on dynamic model plate.

In the present embodiment, dynamic model plate is rectangle steel, it is preferred that the material selection plastic mould steel of dynamic model plate.It is logical The mathematical model for the preset shape that core 21 is inputted to CNC milling machine is crossed, so as to mill out core 21 using CNC milling machine.

S04:Detent mechanism 22 is processed on dynamic model plate, the mismachining tolerance of detent mechanism 22 is no more than 0.01mm.

In the present embodiment, multiple pin holes 210 are cut out on dynamic model 20 using wire cutting technology.Pin hole 210 plus Work error is no more than 0.005mm, is then combined using wire cutting technology and grinding process, processes taper pin 211, taper pin 211 Mismachining tolerance be no more than 0.005mm.So as to which the mismatch error of taper pin 211 and pin hole 210 is no more than 0.01mm, i.e. localization machine The mismachining tolerance of structure 20 is no more than 0.01mm.

S05:Complete the processing of the other standards part or/and non-standard component of mould.

In the present embodiment, the other standards part of mould includes push rod, alignment pin, sprue bush, cover half fixed plate, dynamic model Fixed plate and dynamic model die holder etc..The non-standard component of mould includes sucker, limited block, balance weight, briquetting etc..

S06:Each part of mould is assembled.

Above disclosure is only preferred embodiment of present invention, can not limit the right model of the present invention with this certainly Enclose, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.

Claims (9)

1. a kind of mould of front cover component, to mold front cover component, the front cover component mutually covers shape with display screen Into terminal protecgulum, the display screen includes a display surface, and the display surface has viewing area and non-display area, the non-display area Around the viewing area, it is characterised in that the mould of the front cover component is integrally formed out glass plate, and enclose in The frame of the glass plate, the mould of the front cover component includes fixed half and moving half, and the cover half is provided with an opening direction The die cavity of the dynamic model, the inner surface of the die cavity includes mating surface, and is smoothly connected on the outward appearance of the mating surface the week side of boss Forming surface, the mating surface is used to fit with the upper surface of the glass plate, and the forming surface is to mold the frame Appearance, the dynamic model is slided along the die cavity opening direction and set, and closes or open the die cavity of the cover half, described dynamic Mould is provided with the core stretched out towards the die cavity, and the top end face of the core includes binding face, and is smoothly connected on binding face The inner side forming surface of the week side of boss, the binding face is used to fit with the lower surface of glass plate, the relatively described upper table of the lower surface Face is set, and masking face of the inner side forming surface to mold frame, the masking face is described to cover the non-display area Binding face is provided with sucker, and the sucker holds the lower surface of the glass plate, and the dynamic model is provided with detent mechanism, the positioning Mechanism is positioned to the glass plate, and the appearance of the glass plate is alignd described coordinate in the glide direction of the dynamic model Face, the dynamic model is provided with injection port, and the injection port is towards the type intracavitary administration frame raw material;The dynamic model is provided with multiple positions In the pin hole of the core the week side of boss, the detent mechanism includes multiple taper pins, and it is described that the multiple taper pin corresponds insertion In multiple pin holes, the taper pin includes first end and the second end being oppositely arranged, and the first end is fixed on the dynamic model In pusher seat, the pusher seat promotes the taper pin along the dynamic model glide direction, and the second end of the taper pin is close to the type Core, the week side of boss at second end is provided with a positionable wall towards the glass plate, and the positionable wall of the multiple taper pin is to the glass The week side of boss of glass plate is positioned.
2. the mould of front cover component as claimed in claim 1, it is characterised in that the detent mechanism also includes positioning Post, the locating dowel is arranged on the top end face of the core, positioning hole of the locating dowel to insert the glass plate It is interior.
3. the mould of front cover component as claimed in claim 1, it is characterised in that the mating surface is plane or circular arc Face, the forming surface is plane or arc surface.
4. the mould of front cover component as claimed in claim 1, it is characterised in that the mating surface is on the top of the core Hold the orthographic projection region of end face suitable with the binding face.
5. the mould of front cover component as claimed in claim 1, it is characterised in that the mating surface is on the top of the core Hold binding face described in the orthographic projection region overlay of end face.
6. the mould of front cover component as claimed in claim 1, it is characterised in that the dynamic model sets multiple suctions Disk, the multiple sucker includes a central sucker for corresponding to the glass plate geometric center, and four correspond to it is described The periphery sucker in four corners of glass plate, the central sucker is provided with the gas hole blown towards the glass plate, the week Side sucker is provided with the suction hole towards the glass plate air-breathing, and the gas hole and the suction hole are connected with gas by tracheae Cylinder, the cylinder is fixed on the outside of dynamic model.
7. the mould of front cover component as claimed in claim 6, it is characterised in that the mating surface of the die cavity is provided with fixed Mould gas hole, the cover half gas hole is blown towards the glass plate.
8. a kind of preparation method of mould, it is characterised in that the mould preparation method is to make claim 1 The mould of front cover component described in~7 any one, the preparation method of the mould includes step:
Certain formwork parts are provided, the preset shape of the die cavity is processed on the cover half plate;
Using mirror finish, the mating surface, and the forming surface smoothly connected with the mating surface are processed;
One dynamic model plate is provided, the core is processed on the dynamic model plate;
The detent mechanism is processed on the dynamic model plate, the mismachining tolerance of the detent mechanism is no more than 0.01mm;
Complete other standards part or/and the processing of non-standard component of the mould;
Each part of the mould is assembled.
9. the preparation method of mould as claimed in claim 8, it is characterised in that first will in the step of the mirror finish The die cavity with preset shape carries out milling, is then polished, 0.05 micron of the inside surface roughness of the die cavity is extremely 0.08 micron.
CN201510189558.3A 2015-04-20 2015-04-20 The preparation method of the mould of front cover component and the mould CN104859098B (en)

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CN107866942A (en) * 2016-09-27 2018-04-03 宇龙计算机通信科技(深圳)有限公司 Composite injection moulding mould, composite structural member and terminal
CN106514943B (en) * 2016-11-11 2018-09-14 泰德兴精密电子(昆山)有限公司 The encapsulated seamless ejection die of glass
CN106426817A (en) * 2016-12-24 2017-02-22 浙江工商职业技术学院 Square air-blowing glue-reducing injection mould
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CN102841460A (en) * 2012-09-04 2012-12-26 深圳市华星光电技术有限公司 Liquid crystal display device and mould

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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 523860 usha Beach Road No. 18

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