CN108544709A - A kind of monotype cavity panel cascode injection moulding process - Google Patents
A kind of monotype cavity panel cascode injection moulding process Download PDFInfo
- Publication number
- CN108544709A CN108544709A CN201810286934.4A CN201810286934A CN108544709A CN 108544709 A CN108544709 A CN 108544709A CN 201810286934 A CN201810286934 A CN 201810286934A CN 108544709 A CN108544709 A CN 108544709A
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- region
- injection molding
- injection
- panel
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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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1615—The materials being injected at different moulding stations
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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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1615—The materials being injected at different moulding stations
- B29C45/162—The materials being injected at different moulding stations using means, e.g. mould parts, for transferring an injected part between moulding stations
-
- 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
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
- B29L2031/3008—Instrument panels
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
A kind of monotype cavity panel cascode injection moulding process, this method include：Panel appearance function is analyzed, determines transmission region and light tight region position；Monotype cavity mould is divided into a light transmission injection molding region and more than one opaque injection molding region；It carries out mold flow analysis and glue is walked in die trial；Light-proof material is injected into opaque injection molding region by injection-moulding device；The cast gate in the injection molding of light transmission simultaneously region is closed, and delay is opened after 1 to 2 second, and translucent material, which is injected light transmission, by injection-moulding device is molded in region；It is molded after pressurize, cooling, spray painting is carried out to panel and laser carving goes out Surface Appearance symbol.The cascode injection moulding process is merely with monotype cavity mould and double coloured plastic injection machine and passes through the method for cascode injection molding, realize the technique effect that can be only achieved using double-shot moulding and in-mode inserts injection moulding process, input cost is low, production efficiency is high, solves the problems, such as that part line defects occur in product external surfaces in other Shooting Techniques.
Description
Technical field:
The present invention relates to injection molding technology fields more particularly to cascode injection molding technology, especially one kind, and monotype cavity panel cascode to be answered to note
Molding process.
Background technology:
In-vehicle electronic system control panel is manufactured using injection molding.Light-transmission character region would generally be designed on control panel
（Non- key zone）, when being produced using monotype cavity mould, cannot achieve the processing in local transparent region.In the prior art, using double
Color is molded or in-mode inserts injection molding（IML）Mode realize the injection molding of control panel transmission region, but in process
It needs to use double-color mold, higher to equipment requirement, input cost is big, is reduced compared to the efficiency using the production of monotype cavity mould,
Being known as the defect of part-line in product external surfaces in the industry simultaneously can not eliminate, and influence the beauty of product.
Invention content：
It is an object of the invention to overcome disadvantage of the existing technology, provide a kind of using monotype cavity mould and by double
The monotype cavity panel cascode note that translucent material and light-proof material combine on panel appearance face is realized in the injection molding of color injection molding machine cascode
Molding process.
This monotype cavity panel cascode injection moulding process of the present invention, including one injected liquid material to monotype cavity mould
Process, wherein to monotype cavity mould inject liquid material process before, first, in accordance with hot flow path position, gate location and
The monotype cavity mould is divided into a light transmission injection molding region and more than one number by the appearance functional location of products panel
Opaque injection molding region, then carry out mold flow analysis and die trial walk glue and determine injection translucent material and light-proof material when
Between be spaced, during injecting liquid material to monotype cavity mould, first light-proof material is heated and is melted, while keeping light transmission
The cast gate for being molded region is closed, and the liquid material after fusing is injected by injection-moulding device through cast gate to the hot flow path of monotype cavity mould
And all opaque injection molding regions are reached, the cast gate in the light transmission injection molding region of monotype cavity mould is opened after then postponing 1 to 2 second,
Translucent material is injected light transmission by injection-moulding device to be molded in region, carries out pressurize later, is molded after finally cooling down.
Further, it after die sinking obtains the panel with subregion light transmission function, is painted and is utilized to panel
Laser engraving goes out Surface Appearance symbol, completes the manufacture of entire panel.
Further, translucent material uses white PC injection raw materials, light-proof material to use black PC+ABS injection raw materials.
Further, the hot flow path of light transmission injection molding region cast gate controls opening and closing by needle in monotype cavity mould,
The needle is closed when injection starts.
Further, monotype cavity mould is divided into 4 injection molding regions, and the transmission region at corresponding panel is set as light transmission injection molding area
Domain, the light tight region at corresponding panel are set as the first opaque injection molding region, the second opaque injection molding region and third successively
Opaque injection molding region, it is opaque that light transmission is molded region, the first opaque injection molding region, the second opaque injection molding region and third
Injection molding region is each provided with cast gate and hot flow path, and the valve at light transmission injection molding region cast gate is opened in injection molding after starting delay 1.4 seconds
Needle makes transparent material flow into monotype cavity mould.
The present invention compares with prior art, and effect is positive and apparent.The present invention merely with monotype cavity mould and
Double coloured plastic injection machine and the method being molded by cascode, realizing could be reached using double-shot moulding and in-mode inserts injection moulding process
The technique effect arrived, input cost is low, and production efficiency is high, while also efficiently solving in other Shooting Techniques, product external surfaces
There is the problem of part-line defects.
Description of the drawings：
Fig. 1 is a kind of flow diagram for answering monotype cavity panel cascode injection moulding process of the present invention.
Fig. 2 is injection molding region and cast gate distribution schematic diagram in one embodiment of the invention.
Specific implementation mode：
Embodiment 1:
As depicted in figs. 1 and 2, of the invention to answer monotype cavity panel cascode injection moulding process, the appearance function of panel is analyzed first, really
Determine transmission region and the light tight region position of panel；By monotype cavity mould according to hot flow path and 5 position of cast gate and product outside
It sees function and is divided into a light transmission injection molding region and more than one opaque injection molding region；It carries out mold flow analysis and glue is walked in die trial,
Determine the time interval of injection translucent material and light-proof material；Light-proof material is heated and is melted, the liquid material after fusing
Enter hot flow path through cast gate 5 by injection-moulding device, light-proof material is injected in the opaque injection molding region of monotype cavity mould；
While carrying out light-proof material injection, the cast gate 5 in light transmission injection molding region is closed, and delay opens light transmission after 1 to 2 second
It is molded region cast gate 5, the light transmission that translucent material is injected to monotype cavity mould by injection-moulding device is molded in region；By pressurize,
It is molded after cooling, forms the panel with subregion light transmission function；Spray painting is carried out to panel and laser carving goes out Surface Appearance symbol
Number, complete the manufacture of entire panel.
Further, translucent material uses white PC injection raw materials, light-proof material to use black PC+ABS injection raw materials.
Further, the hot flow path of light transmission injection molding region cast gate 5 is controlled by needle opens and closes, and injection is closed when starting
Valve closing needle makes translucent material delay injection.
Further, monotype cavity mould is divided into 4 injection molding regions, and the transmission region at corresponding panel is set as light transmission injection molding area
Domain 1, the light tight region at corresponding panel are set as the 2, second opaque injection molding region 3 of the first opaque injection molding region and successively
Three opaque injection molding regions 4, each region that is molded are equipped with cast gate and hot flow path, and light transmission note is opened in injection molding after starting delay 1.4 seconds
Needle makes transparent material flow into monotype cavity mould at modeling 1 cast gate of region.
Monotype cavity mould is equipped with 4 hot flow paths, and the cast gate 5 that six cast gates 5, wherein light transmission are molded region 1 injects light transmission
White PC, other cast gates 5 inject lighttight black PC+ABS.The hot flow path of light transmission injection molding 1 cast gate 5 of region is controlled with needle,
Injection first postpones to be molded when starting, and ensures that light-passing plastic is injected into suitable position, that is, meets light transmission function, and will not be injected into
Other extra positions.When design, translucent material is matched in the generation of side wall light leakage risk when designing silica gel switch in order to prevent
Light blocking wall is set, laser carving of finally painting goes out panel appearance symbol, completes panel and makes.
Claims (5)
1. a kind of monotype cavity panel cascode injection moulding process, including a process for injecting liquid material to monotype cavity mould, special
Sign is：Before injecting the process of liquid material to monotype cavity mould, first, in accordance with hot flow path position, gate location and product
The monotype cavity mould is divided into the impermeable of light transmission injection molding region and more than one number by the appearance functional location of panel
Light is molded region, then carries out mold flow analysis and die trial is walked glue and determined and injects translucent material and between the time of light-proof material
Every during injecting liquid material to monotype cavity mould, first light-proof material being heated and is melted, while light transmission being kept to be molded
The cast gate in region is closed, and the liquid material after fusing is injected the hot flow path of monotype cavity mould through cast gate by injection-moulding device and is arrived
Up to all opaque injection molding regions, the cast gate in the light transmission injection molding region of monotype cavity mould is opened after then postponing 1 to 2 second, is passed through
Injection-moulding device carries out pressurize, is molded after finally cooling down later by translucent material injection light transmission injection molding region.
2. monotype cavity panel cascode injection moulding process as described in claim 1, it is characterised in that：It is obtained in die sinking and carries part area
After the panel of domain light transmission function, panel paint and goes out Surface Appearance symbol using laser engraving, completes entire panel
Manufacture.
3. monotype cavity panel cascode injection moulding process as described in claim 1, it is characterised in that：Translucent material is using white PC notes
Raw material is moulded, light-proof material uses black PC+ABS injection raw materials.
4. monotype cavity panel cascode injection moulding process as described in claim 1, it is characterised in that：Light transmission is molded in monotype cavity mould
The hot flow path of region cast gate is controlled by needle and is opened and closed, and the needle is closed when injection starts.
5. monotype cavity panel cascode injection moulding process as claimed in claim 4, it is characterised in that：Monotype cavity mould is divided into 4 notes
Region is moulded, the transmission region at corresponding panel is set as light transmission injection molding region, and the light tight region at corresponding panel is set as the successively
One opaque injection molding region, the second opaque injection molding region and the opaque injection molding region of third, light transmission are molded region, first impermeable
Light injection molding region, the second opaque injection molding region and the opaque injection molding region of third are each provided with cast gate and hot flow path, are molded
The needle at light transmission injection molding region cast gate is opened after starting delay 1.4 seconds makes transparent material flow into monotype cavity mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810286934.4A CN108544709A (en) | 2018-04-03 | 2018-04-03 | A kind of monotype cavity panel cascode injection moulding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810286934.4A CN108544709A (en) | 2018-04-03 | 2018-04-03 | A kind of monotype cavity panel cascode injection moulding process |
Publications (1)
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| CN108544709A true CN108544709A (en) | 2018-09-18 |
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| CN201810286934.4A Pending CN108544709A (en) | 2018-04-03 | 2018-04-03 | A kind of monotype cavity panel cascode injection moulding process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109228133A (en) * | 2018-09-28 | 2019-01-18 | 柳州科沃塑业有限公司 | A kind of double-shot molding method of vehicle internal decoration seat armrest |
| CN111805838A (en) * | 2019-04-12 | 2020-10-23 | 科思创德国股份有限公司 | Method for manufacturing integrated automobile central control display screen panel |
| CN112677405A (en) * | 2020-12-04 | 2021-04-20 | 延锋彼欧（上海）汽车外饰系统有限公司 | Double-color injection mold and double-color forming method for automobile grille |
| CN113978170A (en) * | 2021-09-11 | 2022-01-28 | 温州长江汽车电子有限公司 | Plaque with light-transmitting laser symbol and processing method |
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2018
- 2018-04-03 CN CN201810286934.4A patent/CN108544709A/en active Pending
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109228133A (en) * | 2018-09-28 | 2019-01-18 | 柳州科沃塑业有限公司 | A kind of double-shot molding method of vehicle internal decoration seat armrest |
| CN111805838A (en) * | 2019-04-12 | 2020-10-23 | 科思创德国股份有限公司 | Method for manufacturing integrated automobile central control display screen panel |
| CN111805838B (en) * | 2019-04-12 | 2024-09-27 | 科思创德国股份有限公司 | Method for manufacturing integrated automobile central control display screen panel |
| CN112677405A (en) * | 2020-12-04 | 2021-04-20 | 延锋彼欧（上海）汽车外饰系统有限公司 | Double-color injection mold and double-color forming method for automobile grille |
| CN113978170A (en) * | 2021-09-11 | 2022-01-28 | 温州长江汽车电子有限公司 | Plaque with light-transmitting laser symbol and processing method |
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Application publication date: 20180918 |
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| RJ01 | Rejection of invention patent application after publication |