CN104626464B - Injection mold for interior cover piece and the method using cover piece in its formation - Google Patents
Injection mold for interior cover piece and the method using cover piece in its formation Download PDFInfo
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- CN104626464B CN104626464B CN201410112776.2A CN201410112776A CN104626464B CN 104626464 B CN104626464 B CN 104626464B CN 201410112776 A CN201410112776 A CN 201410112776A CN 104626464 B CN104626464 B CN 104626464B
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- transparency window
- cover piece
- interior
- injection mold
- guide pins
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C45/401—Ejector pin constructions or mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/7207—Heating or cooling of the moulded articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/006—Producing casings, e.g. accumulator cases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
- B29C2045/14147—Positioning or centering articles in the mould using pins or needles penetrating through the insert
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
- B29C2045/14163—Positioning or centering articles in the mould using springs being part of the positioning means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2633/00—Use of polymers of unsaturated acids or derivatives thereof for preformed parts, e.g. for inserts
- B29K2633/04—Polymers of esters
- B29K2633/12—Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/0026—Transparent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3431—Telephones, Earphones
- B29L2031/3437—Cellular phones
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
A kind of method that interior cover piece is formed for the injection mold of interior cover piece and using it, injection mold is used for by inserting the injection-molded interior cover piece for manufacturing some with different desirable propertieses for electronic equipment casing.Injection mold form product in the cavity that core and lower core are formed by adhering to by inserting transparency window and then being expelled to molten resin.Transparency window includes interior section and the peripheral part around interior section, and peripheral part is thinner than interior section and is protruded from the upper surface of interior section and basal surface.The bottom limits recess of the bottom shape in addition to interior section of cover piece in the bottom location indentations of the interior section that transparency window is set being formed on the upper surface of the lower core of injection mold and being limited.When interior section is arranged in the location indentations of bottom, in the region of the peripheral part intrusion bottom limits recess of transparency window, the gap for molten resin infiltration is formed between the basal surface of bottom limits recess and the peripheral part of transparency window.
Description
Cross-Reference to Related Applications
According to 35U.S.C. § 119, this application requires the South Korea submitted in Korean Intellectual Property Office on November 8th, 2013
The priority of patent application No.10-2013-00135140, entire contents are introduced here by the mode quoted.
Technical field
The example embodiment of present inventive concept is related to the interior cover piece of the shell of the electronic equipment for such as smart mobile phone
Injection-molded device and method, and more particularly, to the injection mold for interior cover piece for forming interior cover piece
Method with interior cover piece is formed by using the injection mold, transparency window of the injection mould in mould with treat molded portion it
Between have small stair portion.
Background technology
Injection-molded is for by the way that molten resin is expelled in mould and cooling down molten resin and producing the system of product
Technique is made, it in the shape and size of product is less limited compared with compression molded, extrusion molded or other moldings
And with outstanding productivity ratio and work performance, so as to be widely used in molded plastic product.
Fig. 1 be a diagram that the sectional view of the example of smart mobile phone shell, in Fig. 2 be a diagram that and will be inserted into lid
The sectional view of the example of cover piece.Recently, cause to be widely used for the intelligence of mobile communication equipment due to the expansion of display panel
Mobile phone has changed into the somewhat uncomfortable size for pocket and causes with higher due to dropping, collide etc.
Probability of damage.Therefore, smart mobile phone shell 1 has been launched market.With reference to Fig. 1 and 2, smart mobile phone shell 1 includes base
Portion 2 and lid 4, base portion 2 have recessed recess to load smart mobile phone (not showing), and lid 4 is used to beat on and off
Close the front side of the opening of base portion 2.
Lid 4 includes the outer cover being made up of leather, adhesive-bonded fabric or fabric and the interior cover piece in outer cover.It is interior
Cover piece includes transparency window 11 and the reinforcing section 20 around transparency window 11, and in the case where lid is closed, transparency window 11 makes it possible to
Enough observe a part for the display panel of smart mobile phone.Outer cover covering reinforcing section 20 does not still cover transparency window 11, and
The thickness of reinforcing section 20 it is thinner than transparency window 11 little by little so that reinforcing section 20 together with outer cover disposed thereon thickness with
The thickness of transparency window 11 can be almost identical.
Transparency window 11 can not covered with outer cover, therefore the hardness of transparency window 11 needs to be 4H or higher, example
Such as, transparency window 11 is made up of polymethyl methacrylate (PMMA) resin (usually said acrylic resin).But, strengthen
Part 20 can not be and is made up of PMMA, because PMMA has strong fragility, it is intended to be easily broken, therefore reinforcing section 20
It is made up of (such as) makrolon (PC) resin.
By digital control method, (wherein PMMA resin sheets are covered interior cover piece 10 on both sides and PC resin of extruding is thin
Plate, and PMMA resin sheets are removed so that only leaving PC resin thin plate from reinforcing section 20) or by double method of moulding
(wherein using the resin molded transparency windows 11 of PMAA first, then continuously mould reinforcing section 20 with PC resin) is formed.
But, digital control method has by low production caused by numerically controlled big processing region (process area)
The problem of rate, the problem causes processing cost to increase and process time postpones, and double method of moulding have the hard of transparency window 1
Degree and the problem that is reduced of transparency because the molding of reinforcing section 20 need the molding in transparency window 11 it is fully hardened it
Before carry out.The other treatment of the problem in terms of for eliminating hardness and transparency may increase along with poor efficiency and cost
Plus.
The content of the invention
Technical purpose of the invention
According to an example embodiment, inventive concept provides a kind of interior cover piece of the shell to molded electronic equipment
The method for forming interior cover piece for the injection mold of interior cover piece and using the injection mold for interior cover piece, the inner cap
Part has some of different nature.
Present inventive concept additionally provides the injection mould for interior cover piece of the interior cover piece of the shell for manufacturing electronic equipment
Tool and the method for forming interior cover piece using the injection mold for interior cover piece, the interior cover piece are saturating in mould is inserted into
There is small stage portion between bright window and injection-molded part.
Technical scheme
It is a kind of by inserting transparency window and molten resin being expelled to by viscous according to the example embodiment of present inventive concept
Enclosing the injection mold for interior cover piece for forming product in the cavity that core and lower core are formed includes：Transparency window is transparent
Window includes interior section and peripheral part, and the peripheral part is thinner than interior section and from the upper surface of interior section and basal surface
Prominent, wherein lower core includes bottom location indentations and bottom limits recess, bottom limits recess are limited except interior
The bottom shape of the interior cover piece outside portion part, peripheral part is invaded in the region of bottom limits recess, and for melting
The gap of resin penetration is formed between the basal surface of bottom limits recess and peripheral part.
Difference in height between bottom location indentations and bottom limits recess is 0.1mm to 1mm.
Injection mold for interior cover piece also includes the cooling device of the molten resin being expelled to for cooling in cavity
(cooling method, cooling way), and the cooling device can be cold by the temperature higher than temperature for transparency window
But the part in addition to transparency window.
Injection mold for interior cover piece also includes at least one guide pins, and at least one guide pins are by end under
Stretching out and being assembled on transparency window and be arranged in the location indentations of bottom with by transparency window on the upper surface of core.
Guide pins can be resiliently biased on the direction stretched out.
Injection mold for interior cover piece also includes ejection pin, and ejection pin is used for rise and is formed in cavity and stick to lower core
Product on the upside in portion and for the product to be separated from the upper surface of lower core so that the proper product by ejection pin from
The product can be separated with guide pins when the upper surface of lower core is risen.
Injection mold for interior cover piece also includes quantity identical pneumatic cylinder with least one guide pins, is used for
Rise at least one guide pins.
According to the example embodiment of present inventive concept, a kind of injection mold by using for interior cover piece forms interior cover piece
Method comprise the following steps：The step of loading transparency window, it is by the way that transparency window is assembled into at least one guide pins that this is saturating
Bright window is arranged in the location indentations of bottom；The step of resin is injected, notes molten resin after core and lower core is adhered to
It is mapped in cavity；The step of hardening molten resin hardening is to produce product；In separation by product after core and lower core
The step of being unloaded from the upper surface of lower core.
Transparency window includes thering is guide pin holes with the number of guide pins, and the end of guide pins is through the guiding
Pin-and-hole, wherein transparency window can be arranged to when load transparency window the step of described in guide pins end be inserted into it is corresponding
The transparency window is arranged in the location indentations of bottom when in guide pin holes.
Guide pin holes can be formed on the peripheral part of transparency window.
The length of peripheral part can be 0.5mm to 1mm.
Formed by adhering to polymethyl methacrylate (PMMA) resin sheet and makrolon (PC) resin sheet
Bright window, and molten resin to be injected in resin injection step is makrolon (PC) resin.
The effect of invention
Injection mold for interior cover piece of the invention can by by guide pins be assembled into transparency window and fast and accurately
Be arranged on transparency window on the upper surface of lower core by ground.It is thus possible to improve by inserting interior cover piece that is injection-molded and being formed
Productivity ratio, job failure can be reduced, and production cost can be reduced.Instantly bottom location indentations of the upper surface of core
When with the difference in height between bottom limits recess being small, this effect becomes more notable.
Brief description of the drawings
In detailed description later in being made with reference to accompanying drawing, the example that present inventive concept will be more clearly understood is implemented
Example, wherein：
Fig. 1 is the stereogram of smart mobile phone shell, and Fig. 2 is the stereogram of the interior cover piece that will be inserted in lid；
Fig. 3 is the note formed by using the injection mold for interior cover piece of the example embodiment according to present inventive concept
Penetrate the sectional view of molding product；
Fig. 4 is the sectional view of the injection mold for interior cover piece of the example embodiment according to present inventive concept；
Fig. 5 shows the sectional view of the guide pins of the amplification of Fig. 4；
Fig. 6 be a diagram that the plan of the upper surface of the lower core of Fig. 4；
Fig. 7 to 10 is to show the side that interior cover piece is formed by using the injection mold for interior cover piece of Fig. 4 step by step
The sectional view of method；
Figure 11 shows the injection mold for interior cover piece of another example embodiment according to present inventive concept
Sectional view；With
Figure 12 to 14 shows the method that interior cover piece is formed by using the injection mold for interior cover piece of Figure 11
Sectional view.
Specific embodiment
Various example embodiments will be hereinafter described more fully hereinafter with reference to the accompanying drawings, some example realities will be shown in the drawings
Apply example.But, inventive concept can in a number of different ways embody and should not be construed as present inventive concept and be confined to this
In illustrate example embodiment.Conversely, there is provided example embodiment be in order that this disclosure content will be thoroughly and completely
, and the scope of inventive concept will fully be conveyed to those skilled in the art.In figure, for clarity, layer and region
Size and relative size can be exaggerated.From first to last, identical numeral refers to identical element.
It will be appreciated that, although word first, second, third, etc. etc. can be used to describe various elements herein, but
It is that these elements should not be limited by these terms.These words are used to make a distinction an element and another element.Cause
This, the first element discussed below can be referred to as teaching of second element without deviating from present inventive concept.When used in herein
When middle, word "and/or" includes one or more any and all combination in related column aspect.
It will be appreciated that when an element is referred to as " connection " or " coupling " to another element, it can be direct
Ground connection is coupled to another element or there may be intermediary element.Conversely, when an element is referred to as " directly connecting
Connect " or when being " directly coupled " to another element, there is no intermediary element.It is used to describe other of relation between element
Word should explain in a similar way (for example, " ... between " and " between directly existing ... ", " being adjacent to " and " direct neighbor
Ground ", etc.).
Term used herein is used for the purpose of the purpose of description specific example embodiment and is not intended as hair
The limitation of bright design.As used herein, unless clearly indicated on the contrary in context, otherwise singulative " " and
" being somebody's turn to do " is intended to also include plural form.Also it will be understood that, when used in this specification, word " comprises (bag
Containing) ", " comprising (containing) ", " includes (including) " and/or " including (including) " specify and be stated
Feature, entirety, step, operation, the presence of element and/or part, but be not excluded for one or more other feature, whole
The presence of body, step, operation, element, part and/or its group is additional.
Unless otherwise defined, all words (including technical terms and scientific words) otherwise used herein have and hair
The equivalent that those of ordinary skill in bright design art is generally understood that.It will be further understood that word (such as by
Those defined in usually used dictionary) should be interpreted as having it is consistent with their meanings in the background of association area
The meaning, and unless be clearly so defined herein, otherwise should not be with Utopian or excessively form meaning interpretation.
Fig. 3 is showed by using the injection mold shape for interior cover piece of the example embodiment according to present inventive concept
Into injection-molded product sectional view.With reference to Fig. 3, by using the injection mold 40 (figure 4 illustrates) for interior cover piece
The injection-molded product 29 of formation includes the interior cover piece 10 shown in Fig. 2 and the runner scrap (gate waste) 25 around it.
Interior cover piece 10 includes transparency window 11 and reinforcing section 20.Transparency window 11 includes internal layer 12 and is laminated on the both sides of internal layer 12
First outer layer 13 and the second outer layer 14.Internal layer 12 is the thin plate being made up of makrolon (PC) resin, the first outer layer 13 and second
Outer layer 14 is the thin plate being made up of polymethyl methacrylate (PMMA) resin, and they are pressed in transparency window 11.Internal layer 12
The thickness T4 of thickness T2, the T3 of the first outer layer 13 and the second outer layer 14 be 0.5mm, and the thickness T1 of transparency window 11 is
1.5mm。
In addition, transparency window 11 includes the inside portion formed by being laminated internal layer 12, the first outer layer 13 and the second outer layer 14
The peripheral part 17 for dividing and being protruded from the upper surface of interior section and basal surface.Peripheral part 17 is located at transparency window 11 and strengthens
In bounded part between part 20, it is to make internal layer 12 towards periphery more than the first outer layer 13 and the border of the second outer layer 14
Extend.Compared with the border of the second outer layer 14, the protuberance P1 of peripheral unit 17 is 0.5mm to 1mm.Meanwhile, the first outer layer
13 border than the second outer layer 14 towards extending 0.2mm to 0.4mm P2 periphery more.It is to work as (the quilt of lid 4 to make this species diversity
Display in Fig. 1) outer cover be placed in when on reinforcing section 20 hide outer cover the boundary line by transparency window 11 with shape
Into cleaning and luxurious aesthetic feeling.
Reinforcing section 20 is made up of makrolon (PC) resin, and thickness T5 is 1mm, because lid 4 (is displayed on figure
In 1) outer cover thickness, thickness T5 is thinner than the thickness T1 of transparency window 11.The basal surface and reinforcing section 20 of the first outer layer 13
Basal surface between difference in height T6 be between 0.25mm, and the upper surface of the second outer layer 14 and the upper surface of reinforcing section 20
Difference in height T7 be 0.25mm.
A pair of guide pin holes 15 are formed on the peripheral part 17 of transparency window 11 to penetrate transparency window up and down
11.Reinforcing section 20 is formed by the way that melting PC resin is expelled in cavity CAV (referring to Fig. 8), while (the reference of guide pins 90
During end Fig. 7) is inserted into guide pin holes 15 during the injection-molded process of insertion, therefore, guide pin holes 15 are formed
Peripheral part 17 and the reinforcing section in injection-molded product 29 must be passed completely through.
The same as described above, the protuberance P1 of peripheral part 17 is 0.5 to 1mm.If P1 is less than 0.5mm, will
The bonding force for being difficult to be formed on peripheral part 17 between guide pin holes 15, and transparency window 11 and reinforcing section 20 may be cut
It is weak increasing ratio of defects.Meanwhile, if P1 is more than 1mm, when the molten resin of high temperature during injection-molded process is inserted
During around peripheral part 17, peripheral part 17 may be changed or melt.
Through hole 22 is formed on an end of the close transparency window 11 of reinforcing section 20, for for from smart mobile phone
Loudspeaker (not showing) the transmission sound of (not showing), and in the other end away from transparency window 12 of reinforcing section
Prominent button is formd on portion side and receives recess 23, the protrusion button receives recess and concavely formed, closed with when shell cover 4
The prominent button (not showing) on the preceding lower surface of smart mobile phone (not showing) is received during conjunction.
With with the identical material of reinforcing section 20 runner scrap 25 is formed around reinforcing section 20.Filled out by by molten resin
It is charged in running channel 76 (referring to Fig. 4) and make molten resin to harden and form runner scrap 25, the running channel is formed will be molten
Melt resin is uniform and is rapidly injected into cavity CAV (with reference to figure).Runner scrap 25 is along reinforcing section 20 and runner scrap
Line of cut 27 between 25 is cut to unload interior cover piece 10.The low portion of runner scrap 25 can be the side with ejection pin 65
Boundary (refers to Fig. 4).
Fig. 4 be a diagram that the sectional view of the injection mold for interior cover piece of the example embodiment according to present inventive concept,
Fig. 5 is sectional view, it is illustrated that the guide pins of the amplification of Fig. 4, and Fig. 6 be a diagram that the plane of the upper surface of the lower core of Fig. 4
Figure.With reference to Fig. 4, the injection mold 40 for interior cover piece includes mold 41 and bed die tool 61, and they are elevated.Mold
41 include mold base portion 42, the upper plate 45 supported by mold base portion 42 and the upper core 50 for being fixed to upper plate 45.Sprue bush
43 (it is the entrance of the molten resin being administered in injection mold 40) are prepared in the center of mold base portion 42.By pouring
The molten resin that road set 43 is input to inside mould 40 is imported into the inside of core 50 by runner 46.
Bed die tool 61 includes：The bottom mold base 62 that is suspended on floor, supported by bottom mold base 62 and be inserted with pad
The base plate 68 of (not showing) and it is fixed to the lower core 70 of base plate 68.By adhering to core 70 and lower core 50 and inciting somebody to action
Molten resin is expelled between them the cavity CAV for forming the shape for limiting injection-molded product 29 (referring to Fig. 3).
Cavity CAV is limited by the upper surface of lower core 70 and the basal surface of upper core 50.With reference to Fig. 6, lower core 70 it is upper
Surface includes the bottom location indentations 80 of the interior section for setting transparency window 11 and limits the bottom of the bottom shape of reinforcing section 20
Portion shapes limits recess 82.Specifically, the basal surface of the first outer layer 13 is arranged in bottom location indentations 80, and bottom is fixed
Position recess 80 is by deeper more recessed than bottom limits recess 82.Bottom location indentations 80 and bottom limits recess 82 it
Between there is a small stage portion, and the stage portion difference actually be equivalent to the basal surface and reinforcing section of the first outer layer 13
Difference in height T6 between 20 basal surface.T6 is 0.25mm in figure 3, but embodiment is not constrained to this, and T6 can be with
Less or greater than 0.25mm, for example, being 0.1 to 1mm.
Prominent sound transmission through hole shaping convex portion 84 is prepared on an end of bottom limits recess 82 to limit
Sound transmits through hole 22 (referring to Fig. 3), and the prominent button of preparation connects on another end of bottom limits recess 82
Recess shaping convex portion 85 is received, the button receives recess shaping convex portion and projects upwards to limit the prominent button reception (reference of recess 23
Fig. 3).
Meanwhile, the basal surface of upper core 50 includes the (reference of top location indentations 56 of the interior section for setting transparency window 11
Fig. 8) top with the shape of the upper surface for limiting reinforcing section 20 shapes limits recess 57 (referring to Fig. 8).Top location indentations
56 and top shaping limits recess 57 it is corresponding with bottom location indentations 80 and bottom limits recess 82 respectively.Top positioning is recessed
Portion 56 is more more recessed than top shaping limits recess 57 and receives the upper surface of the second outer layer 14.The He of top location indentations 56
There is small stage portion between top shaping limits recess 57, the wherein difference in height actually be equivalent to the upper of the second outer layer 14
Difference in height T7 (being shown in figure 3) between the upper surface of surface and reinforcing section 20.
With reference to Fig. 4 and 6, recessed running channel is formed around bottom limits recess 82 and is connected to the bottom
Shaping limits recess.When mold 41 and lower mould 61 are adhered to together, the end of runner 46 is connected to running channel 76.Cause
This, the molten resin being injected into inside mould 40 by sprue bush 43 is injected into cavity CAV by runner 46 and running channel 76.
With reference to Fig. 4 to 6, the injection mold 40 for interior cover piece also includes a pair of guide pins 90, and this pair of guide pins guiding is saturating
Bright window 11 is to be arranged in bottom location indentations 80.Guide pins 90 pass through lower core 70, and its end up and down
Stretched out from the point of the determination for being adjacent to bottom location indentations 80 of bottom limits recess 82.
When this is assembled into the guide pin holes of transparency window 11 to guide pins 90 by end, transparency window 11 is by accurately
It is arranged in bottom location indentations 80, then transparency window 11 is fallen, because it will be accurately placed in bottom location indentations 80.
If without guide pins 90, due to the tiny step portion T6 between bottom location indentations 80 and bottom limits recess 82, behaviour
Author is likely difficult to be placed in transparency window 11 in bottom location indentations 80, accordingly, it is possible to operating error is usually produced, and inner cap
The productivity ratio of part 10 may be reduced.
This is formed along projected direction above the upper surface of lower core 70 to guide pins 90 and is resiliently biased.It is special
Not, spring groove 69 is formed on the upside of lower plate 68 with the straight form of guide pins 90, and spring 72 is inserted in bullet
In spring groove 69, and guide pins support member 73 is inserted between the bottom of spring 72 and guide pins 90.In this construction,
When the end of guide pins 90 is forced into lower section due to the descending of upper core 50, guide pins 90 are pushed downwards the quilt of spring 72 simultaneously
Shrink, and when upper core 50 rises, the end of guide pins 90 reaches lower core 70 by the elastic reset of spring 72
The top of upper surface.
Injection mold 40 for interior cover piece also includes multiple ejection pins 65, and the plurality of ejection pin 65 is used for from lower core 70
Upper surface rise injection-molded product 29.The end of ejection pin 65 is connected to running channel 76, and ejection pin 65 bottom quilt
It is fixed to the plate 64 between bottom mold base 62 and base plate 68.In molten resin is injected into cavity CAV and then mold 41
After bed die tool 61 is separated, injection-molded product 29 is adhered on the upper surface of lower core 70, now, in ejection pin 65
Rise, while plate 64 rises, to rise injection-molded product 29, so as to be separated with the upper surface of lower core 70.Now, mould is injected
Product processed 29 is separated with the end of guide pins 90.
Injection mold 40 for interior cover piece also includes the cooling of the molten resin being injected into for cooling in cavity CAV
Device.Especially, cooling device includes coolant channel 52,54,72,74, to cause that cooling agent (such as cooling water) can be worn
Cross core 50 and lower core 70.Cooling agent is through coolant channel 52,54,72,74 and cools down upper core 50 and lower core
70 so that the molten resin hardening being injected into cavity CAV.
Coolant channel is divided into the high temperature coolant passage 52,72 of the cooling agent for flowing through relatively-high temperature and flows through relatively low
The cryogenic coolant passage 54,74 of the cooling agent of temperature.High temperature coolant passage 52,72 is disposed across being located at top shaping limit
Determine the inside of upper core 50 of the top of recess 57 and inside the lower core 70 of the lower section of bottom limits recess 82, and low temperature
Coolant channel 54,74 is disposed across being located at the inside of upper core 50 of the top of top location indentations 56 and positioned at bottom positioning
Inside the lower core 70 of the lower section of recess 80.
In the high-temperature fusion resin contact transparency window 11 being injected into (this directly results in transparency window 11 and changes or melt)
In the case of, cryogenic coolant circulates to prevent transparency window 11 from changing or melting by cryogenic coolant passage 54,74.High temperature is cold
But agent passage 52,72 flows through about 80 DEG C of cooling agent, and cryogenic coolant passage 54,74 flows through about 30 DEG C of cooling agent.
Fig. 7 to 10 be a diagram that the figure of the method that interior cover piece is formed by using the injection mold for interior cover piece, and
Hereinafter, will be described in being formed by using the injection mold for interior cover piece shown in Fig. 4 to 6 side of interior cover piece
Method.The method of cover piece includes loading insert, resin injection, hardening tree in formation according to the example embodiment of present inventive concept
Fat and unload injection-molded product.
With reference to Fig. 7, load insert refer to by insert (transparency window 11) be assembled into this pair of guide pins 90 and by its
In the bottom location indentations 80 being placed on the upper surface of lower core 70.This pair protruded upward above the upper surface of lower core 70
The end of guide pins 90 be inserted on the peripheral part 17 of transparency window 11 formed this pair of guide pin holes 15 in, then in order that
The interior section of transparency window 11 is arranged completely in bottom location indentations 80, the window is lowered to cause the of transparency window
The upper surface of the lower core 70 of basal surface contact of one outer layer 13.When the interior section of transparency window 11 is arranged on bottom location indentations
When on 80, in the region of the intrusion bottom of peripheral part 17 limits recess 82 of transparency window 11.Between being permeated for molten resin
Gap is formed between the basal surface of bottom limits recess 82 and peripheral part 17.With reference to Fig. 3, the gap is T1- (T2+
T4+T6)。
Resin injection refers to adhere to core 50 and lower core by by mold 41 is declined as shown in Figure 8
70 form cavity CAV and molten resin is injected into cavity CAV as shown in Figure 9.With reference to Fig. 8 and 9, when adhering to core
When portion 50 and lower core 70, the second outer layer 14 of transparency window is inserted into the top location indentations 56 on the basal surface of core 50
In, and top shaping limits recess 57 and bottom limits recess 82 limit the shaping of reinforcing section 20.Now, transparency window
11 peripheral part 17 is invaded in the region of top shaping limits recess 57, and is formed on for the gap that molten resin permeates
Between the top of top shaping limits recess 57 and peripheral part 17.With reference to Fig. 3, the gap is T1- (T2+T3+T7).
The end of guide pins 90 with can elastic recovery state pushed down on by the upper surface of upper core 50.Molten resin is by pouring
Road 76 is injected into the cavity CAV limited by top shaping limits recess 57 and bottom limits recess 82 and also injects
To in running channel 76.Molten resin is the PC resin of melting.
Hardening refers to cool down molten resin and molten resin is hardened into injection-molded product 29, and by making cooling
Agent flows through coolant channel 52,54,72,74 and accelerates heat exchange and can rapidly harden molten resin.Injection-molded product 29 is wrapped
Include transparency window 11, reinforcing section 20 and runner scrap 25.
With reference to Figure 10, it refers to separate upper core 50 and lower core 70 simultaneously by rising mold 41 to unload injection-molded product
And unload the injection-molded product 29 being adhered on the upper surface of lower core 70.When upper core 50 rises, guide pins 90 are led to
Cross elastic reset and rise to initial position.When plate 64 (referring to Fig. 4) is raised in the case of being raised in mold 41,
The end of ejection pin 65 pushes up runner scrap 25 to allow that injection-molded product 29 is divided with from the upper surface of lower core 70
From, and guide pin holes 15 leave the end of guide pins 90, to cause that injection-molded product 29 can be separated with this pair of guide pins 90.
Operator picks up injection-molded product 29 and it is taken out from mould 40 from the upper surface of lower core 70.Its
Afterwards, remove runner scrap and complete interior cover piece 10 by cutting runner scrap 25 along line of cut 27.By will be new transparent
Window 11 is loaded on the empty upper surface of lower core 70, and operator can carry out the molding process of new injection-molded product.
Figure 11 be a diagram that the injection mold for interior cover piece of another example embodiment according to present inventive concept
Partial sectional view, and Figure 12 to 14 to be a diagram that and form interior cover piece by using the injection mold for interior cover piece of Figure 11
The figure of the sectional view of method.With reference to Figure 11, the injection for interior cover piece of another example embodiment according to present inventive concept
Mould includes mold and bed die tool 120, and they are the injection molds 40 for interior cover piece that is elevated, being shown in such as Fig. 4
Equally.Mold has the identical of mold 41 construction with display in Fig. 4, therefore, the explanation for repeating will be omitted.
Bed die tool 120 includes：The bottom mold base 121 supported by floor, is supported by bottom mold base 121 and is inserted with lining
The base plate 128 for padding (not showing) and the lower core 130 for being fixed to base plate 128.By core 130 instantly and upper core 150
(Figure 13 is referred to when adhering to together) between lower core 130 and upper core 150 to inject molten resin and form cavity CAV2 (ginsengs
Examine Figure 13), the shaping for limiting injection-molded product 100 (referring to Figure 14).
The upper surface of the lower core 130 shown in Figure 11 includes setting the interior section of transparency window 101 (referring to Figure 12)
Bottom location indentations 133 and the bottom shape for limiting reinforcing section 110 (referring to Figure 14) around bottom location indentations 133
Bottom limits recess 135.Sound transmission through hole shaping convex portion is formed at the side of bottom limits recess 135
137, the sound transmission through hole shaping convex portion projects upwards transmits through hole 22 (referring to Fig. 3) to limit sound.
With reference to Figure 13, the basal surface of upper core 150 includes the top location indentations of the interior section for setting transparency window 101
153rd, the top around the shaped upper part for limiting reinforcing section 110 of top location indentations 153 shapes limits recess 155.
Top location indentations 153 and top shaping limits recess 155 and bottom location indentations 133 and bottom limits recess 135 pairs
Should.
Bed die tool 120 also includes multiple guide pins 140, and the plurality of guide pins guiding transparency window 101 is arranged on bottom positioning
On recess 133.Guide pins 140 extend to bottom mold base 121, and end through lower core 130 and base plate 128 up and down
End is stretched out from the determination part of the adjacent bottom location indentations 133 of bottom limits recess 135.The plurality of guide pins 140 with
Multiple guide pin holes (not showing) correspondence formed on transparency window 101.When the end of multiple guide pins 140 is inserted into correspondence
Guide pin holes when, transparency window 101 is precisely located in bottom location indentations 133, and transparency window 101 is lowered, because
For it will be arranged completely in bottom location indentations 133.
Bottom mold base 121 includes being used for the multiple air pressure for rising multiple guide pins 140 correspondingly with guide pins 140
Cylinder 123, and the plurality of pneumatic cylinder 123 is fixed to cylinder supports part 122.The lower part of guide pins 140 is combined into air pressure
Cylinder 123.Bottom mold base 121 includes the first air inlet passage and second air intake passage 125,126, and first air enters
Mouthful passage and second air intake passage 125,126 air bottom mold base 121 outside is provided to inside pneumatic cylinder 123 or
Air inside pneumatic cylinder 123 is discharged to person the outside of bottom mold base 121.First air inlet passage 125 is connected to
The upper part of pneumatic cylinder 123, and the second air pressure passage 126 is connected to the lower part of pneumatic cylinder 123.When air passes through
When first air inlet passage 125 enters 123 inside of pneumatic cylinder, guide pins 140 decline, and air in pneumatic cylinder 123 leads to
Cross the outside that second air intake passage 126 is discharged to bottom mold base 121.On the other hand, when air is entered by the second air
When mouthful passage 126 enters 123 inside of pneumatic cylinder, guide pins 140 rise, and air in pneumatic cylinder 123 passes through the first air
Access road 125 is discharged to the outside of bottom mold base 121.
Hereinafter, will be described in forming inner cap by using the injection mold 40 for interior cover piece shown in Figure 11
The method of part.With reference to Figure 12, transparency window 101 is assembled into the end of multiple guide pins 140 and is arranged on lower core 130
In bottom location indentations 133 on upper surface.(do not have in the guide pin holes being formed on its peripheral part 107 in transparency window 101
Showing) after place is assembled on the end of multiple guide pins 140, transparency window is lowered with by the bottom table of the first outer layer 103
On the upper surface of the lower core 130 of face contact, so that the interior section of transparency window 101 is precisely located on bottom location indentations
On 133.When the interior section of transparency window 101 is arranged in bottom location indentations 133, the peripheral part 107 of transparency window 101
In the region of intrusion bottom limits recess 135.Gap for resin penetration is formed in the bottom of bottom limits recess 135
Between the peripheral part 107 of surface and transparency window 101.
With reference to Figure 13, formed by falling mold (not showing) and adhering to core 150 and lower core 130
Cavity CAV2.When upper core 150 and lower core 130 are adhered to together, the second outer layer 104 of transparency window is inserted into top to be determined
In the recess 135 of position, and top shaping limits recess 155 and bottom limits recess 135 limit the (reference of reinforcing section 110
Shape Figure 14).Now, in the region of the intrusion of the peripheral part 107 top shaping limits recess 155 of transparency window 101, and supply
The gap of molten resin infiltration is formed between the top surface of top shaping limits recess 155 and peripheral part 107.Lower core
130 and upper core 150 on sound transmission through hole shaping convex portion 137,157 be also adhering to each other.
The end of multiple guide pins 140 is declined by the upper surface of upper core 150.Guide pins 140 are by (the ginseng of pneumatic cylinder 123
Examine Figure 12) support, therefore, even if the end of the upper core 150 for declining and guide pins 140 is bumped against, guide pins 140 are also damping
, while declining the damage or upset that will not cause on core 150 and guide pins 140.
With reference to Figure 14, by operating pneumatic cylinder 123, guide pins 140 decline to cause the height of the upper end of guide pins 140
Can be highly identical with bottom limits recess 135.Therefore, the guide pin holes (not showing) of transparency window 101 are opened.
Then, the molten resin PC resin of melting (for example) be injected into shape limits recess 155 by top and bottom limit it is recessed
In the cavity CAV2 (referring to Figure 13) that portion 135 limits.Molten resin also fills the inside of the guide pin holes of opening.
Molten resin is cooled and hardens into injection-molded product 100.Although not clearly shown in Figure 14,
Injection-molded product 100 also include with all integrally formed runner scrap 25 (referring to Fig. 3) of transparency window 101 and reinforcing section 110,
And it is interior cover piece by separating and then removing runner scrap and cause that product is completed with bed die 120 (referring to Figure 11) of tool.Pass through
The injection-molded product 100 of Figure 14 is formed with the molten resin filling guide pin holes different from the injection-molded product 29 of Fig. 3.
Therefore, guide pin holes can not have crack and durability and can improve.
Although particularly shown and describe the present invention by reference to its example embodiment, it is understood that,
On the premise of without departing from the spirit and scope of the appended claims, the various change in form and details can be made.
Claims (13)
1. a kind of injection mold for interior cover piece, the injection mold is by inserting transparency window and being expelled to molten resin
Product is formed in cavity, the cavity is made by adhering to core and lower core, wherein：
The transparency window includes interior section and peripheral part, and the peripheral part is thinner than the interior section and from described interior
The upper surface of portion part and basal surface are protruded；
The upper core includes that the bottom positioning for being used to be disposed thereon the interior section of the transparency window on surface is recessed
Portion and the bottom limits recess for limiting the bottom shape in addition to the interior section of interior cover piece；
When the interior section is arranged in the bottom location indentations, the peripheral part invades the bottom limit
In determining the region of recess；With
Gap for molten resin infiltration is formed on the basal surface of the bottom limits recess and the periphery
Between part.
2. the injection mold for interior cover piece according to claim 1, wherein, the bottom location indentations and the bottom
Difference in height between shaping limits recess is 0.1mm to 1mm.
3. the injection mold for interior cover piece according to claim 1, also including being injected into the cavity for cooling down
In the molten resin cooling device, wherein, the cooling device with than for the transparency window higher temperature cool down
Part in addition to the transparency window.
4. the injection mold for interior cover piece according to claim 1, also including at least one guide pins, described at least one
Individual guide pins protrude upward the upper surface of the lower core with its end and to be assembled to the transparency window described to guide
Transparency window is arranged in the bottom location indentations.
5. the injection mold for interior cover piece according to claim 4, wherein, the guide pins are in the direction of upward projection
On be resiliently biased.
6. the injection mold for interior cover piece according to claim 4, also including ejection pin, the ejection pin is used to rise
The product of the upper surface of the lower core is formed and adhered in the cavity and by the product from the lower core
The upper surface separates, wherein when making the product be risen from the upper surface of the lower core by the ejection pin,
The product is separated with the guide pins.
7. the injection mold for interior cover piece according to claim 4, also including the number with least one guide pins
The pneumatic cylinder of identical quantity is measured, for rising at least one guide pins.
8. a kind of injection mold for interior cover piece, the injection mold be used for by be molded the reinforcing section of combination so as to around
Transparency window and manufacture interior cover piece, the transparency window is arranged on the cavity formed by the upper core of combination and lower core,
Wherein, the cavity includes unit corresponding with the interior section of the transparency window and with thinner than the interior section
Thickness in the outside prominent corresponding unit of peripheral part and unit corresponding with the reinforcing section；With
Wherein, the unit corresponding with the interior section of the transparency window is configured of and the interior section phase
With thickness, to allow the molten resin in the cavity not cover the interior section, and with the transparency window
The corresponding unit of peripheral part and the unit corresponding with the reinforcing section it is thicker than the peripheral part so that
Molten resin in the cavity can cover the peripheral part of the transparency window.
9. a kind of injection mold for interior cover piece by using described in any one in claim 4 to 7 forms interior cover piece
Method, including：
Transparency window step is loaded, the transparency window is assembled at least one guide pins and the transparency window is arranged on
In the bottom location indentations；
Resin injection step, adheres to the upper core and the lower core and molten resin is expelled in the cavity；
The step of molten resin is hardened into product；With
Unload product step, separate the upper core and the lower core and by the product from the lower core it is described on
Unload on surface.
10. method according to claim 9, wherein, the transparency window includes having and at least one guide pins
The guide pin holes of quantity identical quantity, the end of at least one guide pins passes through the guide pin holes, and
Wherein, described in when the end of at least one guide pins is inserted into corresponding pin-and-hole, the transparency window is arranged on
In the location indentations of bottom.
11. methods according to claim 9, wherein, the guide pin holes are formed in the periphery of the transparency window
In point.
12. methods according to claim 11, wherein, the length of the peripheral part is 0.5mm to 1mm.
13. methods according to claim 9, wherein, the transparency window is by adhesion by plexiglass
The thin plate being made with by polycarbonate resin into thin plate formed, and
The molten resin injected in the resin injection step is the polycarbonate resin of melting.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2013-0135140 | 2013-11-08 | ||
| KR1020130135140A KR101444087B1 (en) | 2013-11-08 | 2013-11-08 | Injection mold for inner cover member of electronic device and method for forming inner cover member using the same |
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| Publication Number | Publication Date |
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| CN104626464A CN104626464A (en) | 2015-05-20 |
| CN104626464B true CN104626464B (en) | 2017-06-20 |
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| CN201410112776.2A Active CN104626464B (en) | 2013-11-08 | 2014-03-24 | Injection mold for interior cover piece and the method using cover piece in its formation |
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| KR (1) | KR101444087B1 (en) |
| CN (1) | CN104626464B (en) |
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| KR102314016B1 (en) * | 2019-10-14 | 2021-10-19 | 주식회사 서연이화 | Method of producing Radio Wave Penetration Cover |
| CN113172841B (en) * | 2021-04-27 | 2022-06-21 | 青岛方正精密模塑有限公司 | Multi-runner automobile accessory injection mold and machining method thereof |
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|---|---|---|---|---|
| CN1200979A (en) * | 1997-05-13 | 1998-12-09 | 特克特朗尼克公司 | Inlaying moulded front-lid and producing method thereof |
| CN101137486A (en) * | 2005-03-10 | 2008-03-05 | 日本写真印刷株式会社 | Process for producing housing for electronic equipment |
| CN103201080A (en) * | 2010-11-10 | 2013-07-10 | 新日铁住金化学株式会社 | Multilayered hardcoat film for injection molding, process for producing same, and process for producing injection-molded object using the multilayered hardcoat film |
| JP2013139136A (en) * | 2011-12-08 | 2013-07-18 | Yoshida Technoworks Co Ltd | Method for manufacturing integrated molded glass article and integrated molded glass article |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011073314A (en) | 2009-09-30 | 2011-04-14 | Nissha Printing Co Ltd | Resin molding equipped with transparent insert material, and die used for manufacturing the same, and method for manufacturing resin molding |
| JP2011093243A (en) | 2009-10-30 | 2011-05-12 | Nissha Printing Co Ltd | Resin molding with insert material and method for producing the same |
| KR101217801B1 (en) * | 2010-12-30 | 2013-01-02 | (주)미래글로텍 | Window case for mobile and the manufacturing method therof |
| DE202011103932U1 (en) * | 2011-08-02 | 2012-11-23 | Oechsler Aktiengesellschaft | Housing shell, especially for portable electrical devices |
| KR101325834B1 (en) * | 2013-05-07 | 2013-11-05 | 윤남운 | Mobile phone protection case with trnsparent part and its making method |
-
2013
- 2013-11-08 KR KR1020130135140A patent/KR101444087B1/en active IP Right Grant
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1200979A (en) * | 1997-05-13 | 1998-12-09 | 特克特朗尼克公司 | Inlaying moulded front-lid and producing method thereof |
| CN101137486A (en) * | 2005-03-10 | 2008-03-05 | 日本写真印刷株式会社 | Process for producing housing for electronic equipment |
| CN103201080A (en) * | 2010-11-10 | 2013-07-10 | 新日铁住金化学株式会社 | Multilayered hardcoat film for injection molding, process for producing same, and process for producing injection-molded object using the multilayered hardcoat film |
| JP2013139136A (en) * | 2011-12-08 | 2013-07-18 | Yoshida Technoworks Co Ltd | Method for manufacturing integrated molded glass article and integrated molded glass article |
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| KR101444087B1 (en) | 2014-09-26 |
| CN104626464A (en) | 2015-05-20 |
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