CN109910229A - Mobile phone, the mobile phone battery cover with Trackpad operating function and its manufacturing method - Google Patents
Mobile phone, the mobile phone battery cover with Trackpad operating function and its manufacturing method Download PDFInfo
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- CN109910229A CN109910229A CN201711332996.6A CN201711332996A CN109910229A CN 109910229 A CN109910229 A CN 109910229A CN 201711332996 A CN201711332996 A CN 201711332996A CN 109910229 A CN109910229 A CN 109910229A
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Abstract
The present invention relates to intelligent terminal design field, specially a kind of mobile phone, mobile phone battery cover and its manufacturing method with Trackpad operating function.The mobile phone includes the rear shell with Trackpad operating function, the rear shell is manufactured using Trackpad IMR technique injection mold, in the present invention, the technical issues of sub-marine gate system structure solves, is: guaranteeing that plastics stream cannot wash away flange and be injected into membrane surface, i.e. injection molding leak adhesive problem.
Description
Technical field
The present invention relates to intelligent terminal design field, after specially a kind of mobile phone, the mobile phone with Trackpad operating function
Shell and its manufacturing method.
Background technique
Smart phone screen tends to screen enlarging at present, needs a hand-held mobile phone using operation, another hand operation display is double
Hand cooperation could be completed, and make troubles to user；For the defect, have been designed with has mobile phone battery cover in the prior art
The smart phone of Trackpad operating function, the technology belong to the prior art, however, in the prior art, grasping for Trackpad
Make the injection mold manufacturing process inefficiency of the mobile phone battery cover of function, and there is Trackpad by what existing injection mold manufactured
The mobile phone battery cover of operating function is all to be improved in structural strength, leakproofness and the performances such as anti-aging.
IMR technique is that a part of continuous sheet is placed in mold cavity, and plastic cement is by the figure of sheet surface silk-screen after injection molding
Case is taken away, with sheet separation；IML is that the molding of the clear sheet of back side silk-screen is placed in mold cavity, after injection molding with plastic cement knot
It is integrated, it is similar to IML technology process that silk-screen is partially sandwiched in IMF, INS between sheet material and plastic cement, the difference is that IMF is will be whole
Zhang Bianyuan shallower diaphragm is molded, and IML only carries out edge diaphragm injection molding to product regional area；INS is then that opposite IMF will
It is made into after mold insert after the whole film progress edge deep drawn with appearance and carries out generally claiming IML/IMF/INS in Injection Industry again
For IMD, and the difference of the difference finished product of IMR independent IMD and IMR is essentially consisted in whether surface has transparent material layer:
There are the PC or PET sheet (about 0.1mm) of layer of transparent in the surface IMD, and pattern is not easy to wear；The surface IMR is one layer of ink (thickness
Can there was only several microns), it is wear-resisting not as good as IMD；One advantage of IMR application is for textured decoration, and pattern is truer,
Injection molding cycle is short, advantage of lower cost, has wider application in industry, but relevant plastic parts moulding is theoretical and molding fills
Standby to accomplish that zero-fault produces to whole diaphragm molding, there is quasi-step matrix Mobile phone the rear shell of Trackpad operating function to answer
The IMR injection forming mold needed for the production of IMR processing procedure makes structure design innovation.
Summary of the invention
Technical problem to be solved by the present invention lies in a kind of mobile phone and its manufacturing method is provided, which includes having touching
The rear shell of plate operating function is controlled, the rear shell is manufactured using Trackpad IMR technique injection mold, the mold, and design rationally, is tied
Structure is compact, the operation is stable, securely and reliably, easy-to-use；In order to solve the above-mentioned prior art problems, the present invention uses such as lower section
Case: a kind of mobile phone and its manufacturing method, the mobile phone include the rear shell with Trackpad operating function, and the rear shell uses Trackpad
The manufacture of IMR technique injection mold, the Trackpad IMR technique injection mold, including gate bush 1, locating ring 2, panel 3, type
Chamber mold insert fixed screw 4, impression bolster 5, positioning needle spring 6, pilot pin 7, type chamber mold insert 8, fine positioning block 9, type core mold insert
10, type core mold insert fixed screw 11, core fixing plate 12, ejector retainner plate guide post 13, release link spring 14, thimble cover board 15, thimble
Push plate 16, support block 17, bottom plate 18, rubbish follow closely 19, sprue puller 20, support column 21, runner ejector pin 22, water channel 23, quick-make head
24, sealing ring 25, enhanced thimble 26, air discharge duct 27, bleed slot 28, exhaust side 29, release link wear-resistant block 30, release link 31,
Guide sleeve 32, mode tiger's jaw 33, balance weight 34, guide post 35, pre- sanction PET film piece 36, injecting products after molding 37, pumping are quick
Connector 38, air flue 39, pumping pin hole 40.
The mould structure uses two template die cold runner injection structure modes, is laid out as two chamber of a mould
The mold molded part is bumped into mode using mold insert, includes mainly type chamber mold insert 8 and type core mold insert 10, for guarantee type
The accuracy that chamber mold insert 8 and type core mold insert 10 reset when being opened and closed devises cooperation location feature mode tiger's jaw 33 between the two.
The die casting system uses cold runner sub-marine gate pouring type, and single product uses double cast gate casting side
Formula, sub-marine gate enter gate design on cast gate thimble 26, and gate diameter isSub-marine gate is conducive to product
With being automatically separated for runner；Flow diameterCorresponding part includes gate bush 1, locating ring 2, sprue puller 20.
The die venting design combines exhaust mode using edge air discharge duct+centre hole, and air discharge duct is designed at type chamber
8 side of mold insert, composition characteristic include air discharge duct 27, bleed slot 28, are vented the depth of 29 air discharge duct 7 of side as 0.02mm, mainly increase
The exhaust of strong quadrangle corner prevents four corner exhausts not smooth and bleed bulge defect；The depth 0.25mm of bleed slot 28, row
The depth on gas side 29 is 0.015mm.
The mold is cooling to use water-cooling pattern, and as shown in C-C section view in Fig. 6, pipe diameter uses layout of beam lineType chamber mold insert 8, type core mold insert 10 are respectively cooled down using two water routes, and the representative part of water channel is water channel 23, fastly
Quick access leads to head 24, sealing ring 25.
Diaphragm used in the mold IMR is that pre- PET film piece 36 of cutting out is beaten by positioning above after the preparatory cutting of diaphragm 36
Hole machine gets 12 location holes, when injection molding, type core mold insert 10 that die opening states are sent 36 by the mechanical arm on injection molding machine
Upper indentation and after positioning, positioning when die closing is carried out by being arranged on mold with the pilot pin 7 of dynamic model side to it, thus, diaphragm 36
Positioning mechanism part mainly include part 7 and part 6.
The ejection of product and runner waste material after the mold injection molding uses thimble pushing method, the ejection master of product
To be ejected by enhanced thimble 26, runner waste material is mainly ejected by sprue puller 20 and runner ejector pin 22, in ejecting mechanism group
At part include ejector retainner plate guide post 13, release link spring 14, thimble cover board 15, thimble push plate 16, rubbish nail 19, release link it is wear-resisting
Block 30, release link 31 in view of 10 length of type core mold insert it is longer, and injection center is in mold centre, to enhance core fixing plate
12 intensity is additionally arranged support column 21 to ensure that core fixing plate 12 is not injection molding pressure extrusion deformation and cavity closed is caused to be lost
It imitates and generates overflow edge mould bases using LKM CI3550-A120-B180-C120 standard die set, guarantee to reset when mould bases closure
Accuracy, mould bases template are additionally arranged 4 fine positioning blocks 9, while being the balance with mould of guarantee type chamber mold insert 8, type core mold insert 10
Property is additionally arranged 4 balance weights 34 in template.
The mold cavity side has been specifically designed diaphragm positioning needle assemblies, including positioning needle spring 6, pilot pin 7,
Corresponding to pilot pin 7, the insertion location hole of pilot pin 7, the number of pilot pin 7 are accordingly devised on dynamic model side core mold insert 10
12, corresponding to the pre- positioning hole number for cutting out PET diaphragm 36, the layout of pilot pin 7 also cuts out PET film piece 36 in view of pre- simultaneously
Stretcher strain surplus.
The mold has done air exchanging design in mold cavity side, i.e., several pumping pin holes 40 are opened up on type chamber,
And the connected air flue 39 of remaining extraneous auxiliary device of gas has been opened, air flue 39 is connected to by being evacuated quick coupling 38 with the auxiliary device of gas
Realization type intracavity gas is taken away in time in injection molding, and after injection molding when intracavitary from the type abjection of product, by the auxiliary blowout of its gas；Separately
An outer exhaust is then the exhaust of type core injection molding side, and the exhaust that type core is molded side is realized by air discharge duct, i.e., in product
Periphery devises the edge air discharge duct that depth is 0.02mm on type core die joint, on one side because be vented it is not smooth due to rush fold softening
Diaphragm.
The mold uses sub-marine gate, and cast gate can only be opened on sub-marine gate thimble to avoid above-mentioned side
Cast gate bring is molded problem.
Also disclose a kind of manufacturing method of mobile phone battery cover with Trackpad operating function.
The utility model has the advantages that a kind of Trackpad IMR technique injection mold that the present invention provides by adopting the above technical scheme, is eliminated
Crimping, contraction unevenness, problem on deformation in IMR processing procedure when film injection molding realize the zero-fault automation molding life of product
It produces, is effectively guaranteed forming quality of products；Reasonable in design, compact-sized, the operation is stable is securely and reliably, easy-to-use.
In the present invention, sub-marine gate system structure solve the technical issues of be: guarantee plastics stream cannot wash away flange
It is injected into membrane surface, i.e. injection molding leak adhesive problem.
In the present invention, diaphragm pilot pin modular construction solve the technical issues of be: solve pre- punching diaphragm and be put into die cavity
Offset problem is generated because stream is impacted when injection molding, the beneficial effect reached is the height kiss that diaphragm and type core can be effectively ensured
It closes, guarantees the accurate forming of product.Compared with prior art, it is manufactured by Trackpad IMR technique injection mold of the present invention
It is substantially increased in mobile phone battery cover structural strength, leakproofness with Trackpad operating function and the performances such as anti-aging, into one
Step ensure that the product quality of mobile phone.Simultaneously as using the mode of automation molding production, the manufacture efficiency of product is significantly
It improves, has saved cost.
Detailed description of the invention
Fig. 1 mold front cross-sectional view；
Fig. 2 dynamic model top view；
Fig. 3 cover half bottom view；
Fig. 4 mold lateral sectional view；
Fig. 5 ejector composition；
Fig. 6 PET film piece figure.
Specific embodiment
Fig. 1-6 show related description figure of the present invention；As shown in figures 1 to 6, a kind of Trackpad IMR technique injection mold system
It makes, described:
The mould structure uses two template die cold runner injection structure modes, is laid out as mold molded part described in two chamber of a mould
Mode is bumped into using mold insert, mainly includes type chamber mold insert 8 and type core mold insert 10 shown in A-A section view in Fig. 1, for guarantee type chamber edge
The accuracy that part 8 and type core mold insert 10 reset when being opened and closed specially designs cooperation location feature mode tiger's jaw 33 between the two.
The die casting system uses cold runner sub-marine gate pouring type, single as shown in C-C cross-sectional view in Fig. 5
A product uses double cast gate pouring type, and sub-marine gate enters gate design on cast gate thimble 26, and gate diameter isSub-marine gate is conducive to being automatically separated for product and runner；Flow diameterCorresponding part includes cast gate lining
Cover 1, locating ring 2, sprue puller 20.
The die venting design combines exhaust mode using edge air discharge duct+centre hole, and air discharge duct is designed at type chamber
8 side of mold insert, composition characteristic include air discharge duct 27, bleed slot 28, exhaust side 29；The depth of air discharge duct 7 is 0.02mm, main to increase
The exhaust of strong quadrangle corner prevents four corner exhausts not smooth and bleed bulge defect；The depth 0.25mm of bleed slot 28, row
The depth on gas side 29 is 0.015mm.
The mold is cooling to use water-cooling pattern, and as shown in C-C section view in Fig. 5, pipe diameter uses layout of beam lineType chamber mold insert 8, type core mold insert 10 are respectively cooled down using two water routes, and the representative part of water channel is water channel 23, fastly
Quick access leads to head 24, sealing ring 25.
Diaphragm used in the mold IMR is to be cut out shown in PET film piece 36 in advance in Fig. 6, after diaphragm 36 is cut in advance, above
12 location holes are got by localization punch, and when injection molding, die opening states are sent 36 by the mechanical arm on injection molding machine
After being pressed into and position on type core mold insert 10, positioning when die closing is carried out to it with the pilot pin 7 of dynamic model side by being arranged on mold, because
And the positioning mechanism part of diaphragm 36 mainly includes part 7 and part 6.
The ejection of product and runner waste material after the mold injection molding uses thimble pushing method, the ejection master of product
To be ejected by enhanced thimble 26, runner waste material is mainly ejected by sprue puller 20 and runner ejector pin 22, in ejecting mechanism group
At part include ejector retainner plate guide post 13, release link spring 14, thimble cover board 15, thimble push plate 16, rubbish nail 19, release link it is wear-resisting
Block 30, release link 31.
The mold is longer in view of 10 length of type core mold insert, and injection center is consolidated in mold centre for enhanced core
The intensity of fixed board 12 is additionally arranged support column 21 to ensure that core fixing plate 12 is not injection molding pressure extrusion deformation and die cavity is caused to close
It closes failure and generates overflow edge.
The mold mould bases uses LKM CI3550-A120-B180-C120 standard die set, multiple when to guarantee mould bases closure
The accuracy of position, mould bases template are additionally arranged 4 fine positioning blocks 9, at the same for guarantee type chamber mold insert 8, type core mold insert 10 with mould
Balance is additionally arranged 4 balance weights 34 in template.
The mold has done following design in injection molding design for the special requirement of aforementioned IMR injection molding process:
1) when diaphragm of the orientation problem of diaphragm after manipulator will have openning hole is sent into mold, diaphragm need to type chamber side into
Row positioning, thus for this needs, it is specifically designed positioning needle spring 6, pilot pin 7 in mold cavity side, it is fixed to correspond to
Position needle 7, the insertion location hole of pilot pin 7 is accordingly devised on dynamic model side core mold insert 10, and the number of pilot pin 7 12 is right
Should be in the positioning hole number for cutting out PET film piece 36 in advance, the layout of pilot pin 7 is simultaneously also in view of the pre- stretching for cutting out PET diaphragm 36 becomes
Shape surplus；
2) type chamber exhausting problem, it is contemplated that when injection molding, after mould cavity closure, form confined air between diaphragm and type chamber
Between, the gas in this space needs rapidly to drain when injection-moulded plastic injects and softens diaphragm and press to type chamber side, because
And done air exchanging design in mold cavity side, i.e., several pumping pin holes 40 are opened up on type chamber, and opened it besides
The connected air flue 39 of the auxiliary device of boundary's gas, air flue 39 are connected to by being evacuated quick coupling 38 with the auxiliary device of gas, realization type intracavity gas
It is taken away in time in injection molding, and when intracavitary from the type abjection of product, is then by auxiliary another exhaust of blowout of its gas after injection molding
Type core is molded the exhaust of side, and the exhaust that type core is molded side is realized by air discharge duct, i.e., in product periphery, type core die joint
On devise depth be 0.02mm edge air discharge duct, on one side because be vented it is not smooth due to rush fold softening diaphragm；
3) the selection mode problem of injection molding sprue, such as directlys adopt side cast gate, then needs to wipe out after the injection molding of side cast gate
Be easy scar, damage the aesthetics of product, another be cast gate periphery diaphragm near cast gate temperature it is excessively high due to mistake
Degree softening even melts and destroys the integrality after diaphragm injection molding, thus, using sub-marine gate, and cast gate can only be opened in
Problem is molded on sub-marine gate thimble to avoid above-mentioned side gate bring.
The working principle of mold are as follows: in conjunction with shown in Fig. 1-5, when injection molding, after mold is opened, manipulator of injection machine will be cut out in advance
PET film piece 36 is sent into the pilot pin 7 of mold, and rear mold is closed, after closure, joined together by type chamber mold insert 8 and type core mold insert 10
Die joint pre- will cut out 36 4 side of PET film piece and push down, injection molding machine nozzle is injected plastics in die cavity by runner and cast gate, note
During modeling, pre- PET film piece 36 of cutting out is pressed to by 8 side of type chamber mold insert by injection pressure, it is made tightly to touch type chamber mold insert 8
Cavity wall, it is cooling to open after band fills, molding mold insert 8,9 is cooled down, and rear mold opening, mechanical arm is by band
The molded part 37 of flash takes out, in case the lower trimming process step of punching together is processed, after pickup, manipulator is again by another 36
It is put into die cavity, mold closure waits next injection cycle.
Specific embodiment described herein is only an example for the spirit of the invention, the neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (7)
1. a kind of mobile phone, which includes the rear shell with Trackpad operating function, and the rear shell is infused using Trackpad IMR technique
Mould, including gate bush 1, locating ring 2, panel 3, type chamber mold insert fixed screw 4, impression bolster 5, positioning needle spring 6,
Pilot pin 7, type chamber mold insert 8, fine positioning block 9, type core mold insert 10, type core mold insert fixed screw 11, core fixing plate 12, ejector retainner plate
Guide post 13, release link spring 14, thimble cover board 15, thimble push plate 16, support block 17, bottom plate 18, rubbish nail 19, sprue puller 20, branch
Dagger 21, runner ejector pin 22, water channel 23, quick-make head 24, sealing ring 25, enhanced thimble 26, air discharge duct 27, bleed slot
28, it is vented side 29, release link wear-resistant block 30, release link 31, guide sleeve 32, mode tiger's jaw 33, balance weight 34, guide post 35, cuts out PET in advance
Diaphragm 36, injecting products after molding 37, pumping quick coupling 38, air flue 39, pumping pin hole 40；The mould gate bushing 1
It across impression bolster 5, is installed on by elastic conjunction in the cast gate sets of holes of type chamber mold insert 8, locating ring 2 is pacified by the way that screw is fixed
In circle hole groove loaded on 3 centre of panel, impression bolster 5 and panel 3 are assembled together by screw fastening and constitute mold
Cover half part, type chamber mold insert 8 is installed in impression bolster 5 after embedding piece groove to be fastened and fixed by type chamber mold insert fixed screw 4；Type
8 positioning pinholes are offered in chamber mold insert 8, with the installation for pilot pin 7, pilot pin 7 is installed in the hole of type chamber mold insert 8
Afterwards, the upper end is compressed by positioning needle spring 6, to be held in position the cavity surface of 7 pop-up type chamber mold insert 8 of needle；Fine positioning block 9 passes through spiral shell
Nail is fastened on core fixing plate 12, after core fixing plate 12, support block 17, bottom plate 18 are securedly mounted to together by screw
Constitute the dynamic model part of mold；Type core mold insert 10 is fastened on institute on core fixing plate 12 by type core mold insert fixed screw 11
In the embedding piece groove opened up, thimble cover board 15 and thimble push plate 16 are assembled into one by screw fastening, pass through ejector retainner plate guide post 13
It is installed on bottom plate 18, ejector retainner plate guide post 13 is installed on bottom plate 18 by elastic conjunction, core fixing plate 12, support block 17, bottom
Plate 18 is fastened together by screw constitutes the dynamic model part of mold, sprue puller 20, runner ejector pin 22, enhanced thimble
26, release link 31 is installed on thimble cover board 15 by corresponding mounting hole, peace after release link spring 14 is set in release link
Loaded on thimble cover board 15, rubbish nail 19, support column 21 are installed on bottom plate 18 by elastic conjunction, and water channel 23 is opened in type
In chamber mold insert 8, type core mold insert 10, the grouping of quick-make head 24 is installed on impression bolster 5 and core fixing plate 12, sealing ring
25 are installed on water channel in type chamber mold insert in the interface of template, and enhanced thimble 26, release link 31 are installed on thimble cover board 15,
Air discharge duct 27, bleed slot 28, exhaust side 29, mode tiger's jaw 33 are opened on type chamber mold insert 8 at 10 mating surface of type core mold insert, answer
Position bar wear-resistant block 30 is fastened on impression bolster 5 by screw, and guide sleeve 32 is installed on type chamber by elastic conjunction and fixes
On plate 5, balance weight 34 is fastened on core fixing plate 12 by screw, and guide post 35 is installed on type core by elastic conjunction and consolidates
On fixed board 12, pumping quick coupling 38 is installed on 5 side of impression bolster, and air flue 39, pumping pin hole 40 are opened in type chamber and fix
On plate 5 and type chamber mold insert 8, pre- PET film piece 36, the injecting products after molding 37 cut out is the reference materials in process；The mould
Has the ejection of product and runner waste material formed after injection molding using thimble pushing method, the ejection of product is mainly by enhanced thimble
26 ejections, runner waste material mainly ejects by sprue puller 20 and runner ejector pin 22, in ejecting mechanism component part include thimble
Plate guide post 13, release link spring 14, thimble cover board 15, thimble push plate 16, rubbish follow closely 19, release link wear-resistant block 30, release link 31
In view of type core 10 length of mold insert are longer, and injection center, for the intensity for enhancing core fixing plate 12, is added in mold centre
Support column 21 is to ensure that core fixing plate 12 is not injection molding pressure extrusion deformation and causes cavity closed to fail and generates overflow edge
Mould bases uses LKM CI3550-A120-B180-C120 standard die set, for the accuracy resetted when guaranteeing mould bases closure, mould bases mould
Plate is additionally arranged 4 fine positioning blocks 9, while being the balance with mould of guarantee type chamber mold insert 8, type core mold insert 10, adds in template
4 balance weights 34.
2. mobile phone according to claim 1, the mold has done air exchanging design in mold cavity side, i.e., in type chamber
On open up several pumping pin holes 40, and opened the connected air flue 39 of remaining extraneous auxiliary device of gas, air flue 39 is quick by pumping
Connector 38 is connected to realization type intracavity gas with the auxiliary device of gas and is taken away in time in injection molding, and product is intracavitary de- from type after injection molding
When out, by the auxiliary blowout of its gas；Another exhaust is then the exhaust of type core injection molding side, and the exhaust that type core is molded side is then to pass through row
Air drain is realized, i.e., the edge air discharge duct that depth is 0.02mm is devised on product periphery, type core die joint, on one side because of exhaust
Diaphragm that is not smooth and rushing fold softening.
3. mobile phone according to claim 1, the mold uses sub-marine gate, and cast gate can only be opened in submarine
Problem is molded on cast gate thimble to avoid above-mentioned side gate bring.
4. a kind of manufacturing method of mobile phone.
5. a kind of mobile phone battery cover with Trackpad operating function.
6. a kind of manufacturing method of the mobile phone battery cover with Trackpad operating function.
7. a kind of Trackpad IMR technique injection mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711332996.6A CN109910229A (en) | 2017-12-13 | 2017-12-13 | Mobile phone, the mobile phone battery cover with Trackpad operating function and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711332996.6A CN109910229A (en) | 2017-12-13 | 2017-12-13 | Mobile phone, the mobile phone battery cover with Trackpad operating function and its manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109910229A true CN109910229A (en) | 2019-06-21 |
Family
ID=66959238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711332996.6A Pending CN109910229A (en) | 2017-12-13 | 2017-12-13 | Mobile phone, the mobile phone battery cover with Trackpad operating function and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109910229A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104339529A (en) * | 2013-07-29 | 2015-02-11 | 联想(北京)有限公司 | Electronic terminal manufacturing method and electronic terminal |
| CN104407744A (en) * | 2015-01-03 | 2015-03-11 | 胡世曦 | Rear-mounted touch control device for intelligent equipment |
| CN106273214A (en) * | 2015-06-10 | 2017-01-04 | 东莞市艾尔玛机械设备有限公司 | A kind of method that in-mold transfer printing and touch-control combine |
-
2017
- 2017-12-13 CN CN201711332996.6A patent/CN109910229A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104339529A (en) * | 2013-07-29 | 2015-02-11 | 联想(北京)有限公司 | Electronic terminal manufacturing method and electronic terminal |
| CN104407744A (en) * | 2015-01-03 | 2015-03-11 | 胡世曦 | Rear-mounted touch control device for intelligent equipment |
| CN106273214A (en) * | 2015-06-10 | 2017-01-04 | 东莞市艾尔玛机械设备有限公司 | A kind of method that in-mold transfer printing and touch-control combine |
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| Title |
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| 张克惠: "《注塑模设计》", 31 January 1995, 西北工业大学出版社 * |
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Application publication date: 20190621 |
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