CN106371237A - Metal front frame of display product and manufacturing method thereof - Google Patents
Metal front frame of display product and manufacturing method thereof Download PDFInfo
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- CN106371237A CN106371237A CN201610989551.4A CN201610989551A CN106371237A CN 106371237 A CN106371237 A CN 106371237A CN 201610989551 A CN201610989551 A CN 201610989551A CN 106371237 A CN106371237 A CN 106371237A
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- front frame
- metal front
- moulding
- card convex
- convex structure
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- 239000002184 metal Substances 0.000 title claims abstract description 68
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 68
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 33
- 238000005452 bending Methods 0.000 claims abstract description 21
- 238000005096 rolling process Methods 0.000 claims abstract description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 11
- 238000004381 surface treatment Methods 0.000 claims abstract description 8
- 238000000465 moulding Methods 0.000 claims description 70
- 239000007769 metal material Substances 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000001962 electrophoresis Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000007592 spray painting technique Methods 0.000 claims description 4
- 238000005491 wire drawing Methods 0.000 claims description 4
- 238000003801 milling Methods 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 7
- 238000009966 trimming Methods 0.000 abstract 1
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005480 shot peening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/13332—Front frames
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Credit Cards Or The Like (AREA)
Abstract
The invention discloses a metal front frame of a display product, and relates to the technical field of electronic and electric products. The metal front frame comprises an A group frame strip and a B group frame strip, wherein the section of the A group frame strip is of a U-shaped structure, clamping convex structures are arranged at two ends of the A group frame strip, clamping groove structures are arranged at two ends of the B group frame strip, and the clamping convex structures and the clamping groove structures are matched with each other to enable the A group frame strip and the B group frame strip to be sequentially spliced. The invention also discloses a manufacturing method of the metal front frame, which comprises the following steps: blanking; rolling and forming; splitting; cutting a notch by a line; bending and forming; wire cutting; chamfering and fine trimming; surface treatment; and (6) splicing. The metal front frame is reasonable in structure, simple and firm in splicing, and is processed by the processes of roll forming, linear cutting and the like, so that a display product is simpler to manufacture, lower in cost and more attractive in appearance; compared with the traditional processing, the manufacturing method avoids a complex die structure, reduces the product reject ratio, improves the working efficiency and ensures the processing precision and the strength of the metal front frame.
Description
Technical field
The present invention relates to electric equipment products technical field is and in particular to a kind of metal front frame of display product and its making
Method.
Background technology
With the fast development of electronic enterprises, the display product with liquid crystal display screen, such as display, television set, integrally
Machine etc. is more and more welcomed by the people.LCDs periphery is coated with a circle metal front frame, and this metal front frame is not only related to
The total quality of display product, and the outward appearance of display product is also had a great impact.In prior art, metal front frame is general
To be made using expressing technique, Sheet Metal Forming Technology etc., its need in process using baroque extrusion die and
Die cutting die, manufacturing process is loaded down with trivial details, less efficient, relatively costly；Moreover, the metal front frame being obtained using this technique is usual
There is more junction, thus leading to metal front frame to rupture in these junctions, significantly reducing metal front frame
Intensity；And this metal front frame is usually integral structure, wastes time and energy when installing, also affect U.S. of display with display screen
See.In addition, in prior art adopt general NC machine finish relatively low it is impossible to meet current precise electronic electric equipment products
Higher and higher required precision.
Therefore, a kind of display metal front frame of product and the manufacture method of this metal front frame are needed badly, to solve the above problems.
Content of the invention
It is an object of the present invention to proposing a kind of metal front frame of display product, this metal front frame is rational in infrastructure, spelling
Connect simple, low cost, intensity height.
Further object is that proposing a kind of manufacture method of the metal front frame of display product, can solve the problem that existing
There is the problem that in metal front frame processing, mould structure is complicated, working (machining) efficiency is low, product strength is not enough.
For reaching this purpose, the present invention employs the following technical solutions:
A kind of metal front frame of display product, is in a group moulding and the b group moulding of u-shaped structure including section, described a group frame
The two ends of bar are provided with card convex structure, and the two ends of described b group moulding are provided with notch, and described card convex structure is mutual with notch
Cooperation makes a group moulding splice successively with b group moulding.
As a kind of preferred version of the metal front frame of display product, described card convex structure is to the open side folding of u-shaped structure
Curved certain angle, the angle ranging from 0-90 °.
As a kind of preferred version of the metal front frame of display product, described card convex structure and notch are connected with each other
Position be provided with the chamfering cooperating.
As a kind of preferred version of the metal front frame of display product, described chamfering is fillet, right angle or oblique angle.
The present invention also proposes a kind of manufacture method of the metal front frame of display product, comprises the following steps:
Blanking: according to the dimensions of metal front frame, select specific width, the metal material belt of thickness to carry out blanking；
Rolling and forming: metal material belt gradually bending into section by the multi-pass roll being arranged in order on roller mill is u
The section bar of type structure；
Article points: rolling and forming is obtained section bar and is cut by required size, obtain the moulding of two groups of length of a, b；
Line necked in operation: the two ends of a group moulding are cut into by card convex structure using wire cutting machine, the two ends of b group moulding are cut into
Notch；
Bending and molding: the card convex structure at a group moulding two ends is carried out bending according to special angle and size；
Line cuts: the dogleg section of card convex structure is cut by particular requirement, so that card convex structure is fitted with notch phase
Join；
Chamfering refine: chamfering is made to card convex structure and the interconnective position of notch, and refine is carried out to chamfering；
Surface treatment: a group moulding and b group moulding are surface-treated；
Splicing: the notch of the card convex structure of a group moulding and b group moulding is riveted on request, forms display and produce
The metal front frame of product.
As a kind of preferred version of the manufacture method of the metal front frame of display product, the metal charge in described blanking step
Carry as strip stainless steel metal plate.
As a kind of preferred version of the manufacture method of the metal front frame of display product, described rolling and forming adopts cold rolling
Technique.
As a kind of preferred version of the manufacture method of the metal front frame of display product, described bending and molding adopts bending
Machine.
As a kind of preferred version of the manufacture method of the metal front frame of display product, described chamfering reconditioning process is using essence
Carving machine.
As a kind of preferred version of the manufacture method of the metal front frame of display product, the method for described surface treatment has throwing
Light, wire drawing, texture, electrophoresis and spray painting.
The invention has the benefit that
The metal front frame of the present invention is rational in infrastructure, and splicing is simple, firm, and it is added by techniques such as rolling and forming, wire cuttings
Work form so that show product making simpler, cost is lower, and outward appearance is more beautiful；Compared with traditional processing, this making
Method avoids the mould structure of complexity, reduces product fraction defective, improves work efficiency it is ensured that the processing of metal front frame
Precision and intensity.
Brief description
For the explanation embodiments of the invention that become apparent or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the accompanying drawing of required use does one and simply introduces, and drawings discussed below is some realities of the present invention
Apply example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the manufacture method flow chart of the metal front frame of display product that the specific embodiment of the invention provides；
Fig. 2 is the structure chart of the metal flitch that the specific embodiment of the invention provides；
Fig. 3 is the structure chart of moulding after the rolling and forming that the specific embodiment of the invention provides；
Fig. 4 is the structure chart of a group moulding that the specific embodiment of the invention provides；
Fig. 5 is the structure chart of the b group moulding that the specific embodiment of the invention provides；
Fig. 6 is the structure chart after the card convex structure bending that the specific embodiment of the invention provides；
Fig. 7 is the structure chart after the card convex structure lines that the specific embodiment of the invention provides cut；
Fig. 8 is the spliced structure chart of metal front frame that the specific embodiment of the invention provides；
Fig. 9 is a kind of spliced map with b group moulding for a group moulding of specific embodiment of the invention offer；
Figure 10 is another kind of spliced map with b group moulding for a group moulding of specific embodiment of the invention offer；
Figure 11 is another kind of spliced map with b group moulding for a group moulding of specific embodiment of the invention offer；
Figure 12 is another kind of spliced map with b group moulding for a group moulding of specific embodiment of the invention offer.
In figure:
1st, u-shaped structure；2nd, a group moulding；3rd, b group moulding；4th, card convex structure；5th, notch；6th, chamfering.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is described in further detail.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, in order to just
Illustrate only part related to the present invention rather than entire infrastructure in description, accompanying drawing, and accompanying drawing is only for the purpose of description, not
According to life size mapping.
As shown in Fig. 3-Figure 12, present embodiment proposes a kind of metal front frame of display product, is in u-shaped structure including section
1 a group moulding 2 and b group moulding 3, the two ends of wherein a group moulding 2 are provided with card convex structure 4, and the two ends of b group moulding 3 are provided with draw-in groove
Structure 5, card convex structure 4 and notch 5 cooperate makes a group moulding 2 splice successively with b group moulding 3.This metal front frame structure
Rationally, splice simple it is adaptable to display, all-in-one, colour TV and other 3c series of products.
Further, to the open side bending certain angle of u-shaped structure 1, this angle is preferably 0-90 ° to card convex structure 4, and
In card convex structure 4 and notch 5, interconnective position is provided with chamfering 6, and chamfering 6 can be fillet, right angle or certain angle
Oblique angle.By the setting of dogleg section and chamfering 6, a group moulding 2 and b group moulding 3 can form multiple splicing constructions, preferably
Ground, as shown in figure 9, the bending angle of a group moulding 2 is 90 degree, the chamfering 6 of junction is fillet；As shown in Figure 10, a group moulding 2
Bending angle be 0 degree, the chamfering 6 of junction is right angle；As shown in figure 11, the bending angle of a group moulding 2 is 90 degree, connects
The chamfering 6 at place is right angle；As shown in figure 12, the bending angle of a group moulding is 45 degree, and the chamfering 6 of junction is 45 degree of oblique angles.When
So, they can also be spliced and combined using other, repeats no more here.The metal front frame of the present invention is rational in infrastructure, splicing letter
Single, firm, by the tight fit of card convex and notch, enormously simplify the installation process of itself and LCDs, it is to avoid
The defect that integral structure exists, saves manpower and cost, and flexible splicing construction makes display product appearance more simultaneously
Attractive in appearance, more conform to consumer demand.
As shown in Fig. 1-Figure 12, present embodiment additionally provides a kind of manufacture method of the metal front frame of display product, should
Manufacture method specifically includes following steps:
Blanking: according to the dimensions of metal front frame, select specific width, the metal material belt of thickness to carry out blanking；
Preferably, the metal material belt of this step is strip stainless steel metal plate, makes metal front frame from stainless steel material,
With respect to traditional aluminium section bar, substantially increase the structural strength of metal front frame it is ensured that showing the use quality of product；Another
Aspect, stainless steel also increases the metal-like of front frame so as to more fashion, attractive in appearance, has preferably agreed with contemporary electronic
The growth requirement of electric equipment products.
Rolling and forming: metal material belt gradually bending into section by the multi-pass roll being arranged in order on roller mill is u
The section bar of type structure 1；
Metal material belt thickness due to making metal front frame is typically relatively thin, and therefore this step preferably employs cold roll milling technology,
Using cold rolling forming machine, metal material belt is processed.In roll milling process, with the revolution of running roller, by metal material belt to
While front feeding, transverse curvature is carried out continuously to metal material belt, finally obtains the section bar of specific section.Rolling and forming is not only grasped
Process of making is simple, and equipment needed thereby and number of workers are few, and production efficiency and stock utilization are high；And the product appearance obtaining is put down
Whole, intensity is high, good manufacturability.
Article points: rolling and forming is obtained section bar and is cut by required size, obtain the moulding of two groups of length of a, b；
Here, moulding section bar being cut into two groups of length of a, b is to correspond to the horizontal frame on display product and vertical
To frame, certainly, if display product is square structure, four edges frame equal length, then only section steel cutting need to be become a kind of long
The moulding of degree.
Line necked in operation: the two ends of a group moulding 2 are cut into by card convex structure 4 using wire cutting machine, the two ends of b group moulding 3 are cut
Become notch 5；
The wire cutting machine machining accuracy that this step adopts is higher, and processing dimension is accurate, workpiece quality is preferable, disclosure satisfy that and works as
Front precise electronic electric equipment products are to required precision；And a wire cutting machine can process multiple parts, substantially increases life simultaneously
Produce efficiency.
Bending and molding: the card convex structure 4 at a group moulding 2 two ends is carried out bending according to special angle and size；
The equipment that this step adopts is bender, and the bending angle of card convex structure is 0-90 degree.
Line cuts: the dogleg section of card convex structure 4 is cut by particular requirement, makes card convex tie 4 structures and notch 5 phase
Adaptation；
The card convex structure 4 that this step is obtained is cooperated with notch 5, convenient the carrying out splicing step below.
Chamfering refine: chamfering 6 is made to card convex structure 4 and the interconnective position of notch 5, and chamfering 6 is carried out
Refine；
Here, the equipment that chamfering reconditioning process adopts is carving machine, its stable and reliable operation, crudy are good, efficiency high,
Simple to operate, easy to maintenance.
Surface treatment: a group moulding 2 and b group moulding 3 are surface-treated；
The surface treatment method mainly adopting at this has polishing, wire drawing, texture, electrophoresis and spray painting etc..Metal surface is entered
Row polishing can improve product appearance；Wire drawing and texture processing, can increase resultant metal sense so as to more high-end, fashion；Electrophoresis
Color metal surface needed for can be obtained with spray painting, increase its aesthetics, and protect metal surface.Certainly, at surface herein
Ought to implement it is not limited to above-mentioned mode according to the actual requirements, for example, it is also possible to be plating, shot-peening etc..
Splicing: the notch 5 of the card convex structure 4 of a group moulding 2 and b group moulding 3 is riveted on request, is formed aobvious
Show the metal front frame of product.
Preferably, before this step, after surface treatment step, can also be first to a group moulding and b group moulding junction
Carry out gluing process, after gluing, moulding splicing is more firm, display screen can be played with preferable support protective effect.
Obviously, the above embodiment of the present invention is used for the purpose of clearly example of the present invention being described, and is not right
The restriction of embodiment of the present invention.For those of ordinary skill in the field, acceptable on the basis of the above description
Make other changes in different forms.There is no need to be exhaustive to all of embodiment.All at this
Any modification, equivalent and improvement made within bright spirit and principle etc., should be included in the claims in the present invention
Within protection domain.
Claims (10)
1. a kind of metal front frame of display product is it is characterised in that include a group moulding (2) and the b group that section is in u-shaped structure (1)
Moulding (3), the two ends of described a group moulding (2) are provided with card convex structure (4), and the two ends of described b group moulding (3) are provided with notch
(5), described card convex structure (4) and notch (5) cooperate makes a group moulding (2) and b group moulding (3) splice successively.
2. the metal front frame of display product according to claim 1 is it is characterised in that described card convex structure (4) is tied to u-shaped
0-90 ° of angle of open side bending of structure (1).
3. the metal front frame of display product according to claim 2 is it is characterised in that described card convex structure (4) and draw-in groove
The upper interconnective position of structure (5) is provided with the chamfering (6) cooperating.
4. the metal front frame of display product according to claim 3 is it is characterised in that described chamfering (6) is fillet, right angle
Or oblique angle.
5. a kind of manufacture method of the metal front frame of display product is it is characterised in that comprise the following steps:
Blanking: according to the dimensions of metal front frame, select specific width, the metal material belt of thickness to carry out blanking；
Rolling and forming: metal material belt gradually bending into section by the multi-pass roll being arranged in order on roller mill is u-shaped knot
The section bar of structure (1)；
Article points: rolling and forming is obtained section bar and is cut by required size, obtain the moulding of two groups of length of a, b；
Line necked in operation: the two ends of a group moulding (2) are cut into by card convex structure (4) using wire cutting machine, by the two ends of b group moulding (3)
It is cut into notch (5)；
Bending and molding: the card convex structure (4) at a group moulding (2) two ends is carried out bending according to special angle and size；
Line cuts: the dogleg section of card convex structure (4) is cut by particular requirement, makes card convex structure (4) and notch (5)
It is adapted；
Chamfering refine: chamfering (6) is made to card convex structure (4) and the interconnective position of notch (5), and to chamfering (6)
Carry out refine；
Surface treatment: a group moulding (2) and b group moulding (3) is surface-treated；
Splicing: the notch (5) of the card convex structure (4) of a group moulding (2) and b group moulding (3) is riveted on request, shape
Become the metal front frame of display product.
6. the manufacture method of display resultant metal front frame according to claim 5 is it is characterised in that in described blanking step
Metal material belt be strip stainless steel metal plate.
7. the manufacture method of the display resultant metal front frame according to claim 5 or 6 is it is characterised in that described rolling becomes
Type adopts cold roll milling technology.
8. the manufacture method of display resultant metal front frame according to claim 5 is it is characterised in that described bending and molding is adopted
Use bender.
9. the manufacture method of display resultant metal front frame according to claim 5 is it is characterised in that described chamfering refine
Cheng Caiyong carving machine.
10. the manufacture method of display resultant metal front frame according to claim 5 is it is characterised in that described surface treatment
Method have polishing, wire drawing, texture, electrophoresis and spray painting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989551.4A CN106371237A (en) | 2016-11-10 | 2016-11-10 | Metal front frame of display product and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989551.4A CN106371237A (en) | 2016-11-10 | 2016-11-10 | Metal front frame of display product and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN106371237A true CN106371237A (en) | 2017-02-01 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610989551.4A Pending CN106371237A (en) | 2016-11-10 | 2016-11-10 | Metal front frame of display product and manufacturing method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990587A (en) * | 2017-05-26 | 2017-07-28 | 奥捷科技（厦门）有限公司 | Frame for display equipment and manufacturing method thereof |
| CN107402550A (en) * | 2017-06-21 | 2017-11-28 | 深圳市德仓科技有限公司 | A kind of equipment center processing control method, system and computer-readable recording medium |
| CN109719196A (en) * | 2018-12-28 | 2019-05-07 | 苏州金利美金属科技有限公司 | A kind of manufacturing process of three frames part |
| CN111451410A (en) * | 2020-06-03 | 2020-07-28 | 苏州金利美金属科技有限公司 | Simple-process display metal frame and manufacturing process and manufacturing equipment thereof |
| CN111468633A (en) * | 2020-06-03 | 2020-07-31 | 苏州金利美金属科技有限公司 | Display metal frame and manufacturing process and manufacturing equipment thereof |
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