CN108819094A - A kind of the quick injection molding technique and mold of complex precise notebook computer casing - Google Patents
A kind of the quick injection molding technique and mold of complex precise notebook computer casing Download PDFInfo
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- CN108819094A CN108819094A CN201810788901.XA CN201810788901A CN108819094A CN 108819094 A CN108819094 A CN 108819094A CN 201810788901 A CN201810788901 A CN 201810788901A CN 108819094 A CN108819094 A CN 108819094A
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 50
- 229910052751 metal Inorganic materials 0.000 claims abstract description 50
- 229920003023 plastic Polymers 0.000 claims abstract description 40
- 239000004033 plastic Substances 0.000 claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007924 injection Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 238000000465 moulding Methods 0.000 claims abstract description 8
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 239000000047 product Substances 0.000 claims 1
- 239000013589 supplement Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000004568 cement Substances 0.000 abstract description 4
- 230000008602 contraction Effects 0.000 abstract description 3
- 239000012943 hotmelt Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 229920006351 engineering plastic Polymers 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 208000000884 Airway Obstruction Diseases 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
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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
- B29C45/17—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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/34—Moulds having venting means
-
- 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
- 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
- B29L2031/3406—Components, e.g. resistors
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention provides a kind of quick injection molding molds of complex precise notebook computer casing, including preceding mould and rear mold, preceding mould includes fixed plate and front template, rear mold includes rear pattern plate, positioning plate, support block and rear panel, front template and rear pattern plate closed forming cavity, rear panel is equipped with ejector pin mechanism, it is characterised in that：It further include table top, hot runner mechanism, negative pressure air flue, heating system and cooling system.The structure design of injection forming mold provided by the present invention is sucked out type chamber air to form negative pressure state before injection molding, in injection molding, the plastic material of hot melt state can be rapidly filled with type chamber, the surface quality of injection efficiency and plastic cement products be greatly improved, so as to shorten the production cycle；It also proposed the technique with above-mentioned mold production notebook computer casing, reinforce the combination effect to metal plate and plastic frame, plastic frame is unlikely to deform after moulding, reduces the effect of contraction of plastic frame, enhances the bond strength of metal plate and plastic frame.
Description
Technical field
The invention belongs to injection-moulding device fields, and in particular, to a kind of quick note of complex precise notebook computer casing
Mould moulding process and mold.
Background technique
The material of notebook computer casing is mainly engineering plastics or metal at present, because of engineering plastics low cost, light weight
The characteristics of getting up early be widely used in produce notebook computer casing, in recent years, the notebook computer casing of metal material is because of it
High-quality appearance, and its material capability of the processing of complicated, accurate notebook is adapted to, and metal itself is better than engineering
The heat dissipation performance of plastics, so that the notebook computer casing of metal material gradually rises.But the all-metal material in routine use
Notebook computer casing occur to scrape and collision after, be more also easy to produce the scratch of unrepairable and recessed compared with engineering plastics shell
It falls into, the aesthetics largely effected on.For this purpose, our company is based on many years knowhow and research combines the digital product market demand, design
The hardened computer casing forms for closing outer plastic frames of various metals, solve notebook computer casing and have both excellent heat radiation
The design scheme that can, adapt to processing topology requirement inside complex precise, have the damage of preferable anticollision, in the market this kind of form
Notebook computer casing also gradually rises.
But currently, produce the notebook computer casing of this kind of form there is no a kind of processing method rapidly and efficiently, and
The notebook computer casing metal of this kind of form and plastics junction air-tightness and adhesion strength are poor currently on the market, seek its original
Production equipment and production technology because being the single material computer casing of tradition mismatch.
Therefore, the above problem is urgently to be resolved.
Summary of the invention
Goal of the invention：For overcome the deficiencies in the prior art, the object of the present invention is to provide one kind to be adapted to complex precise
Mold is used in the quick injection molding technique of notebook computer casing and production.
Technical solution：The present invention provides a kind of quick injection molding technique of complex precise notebook computer casing, institutes
State the plastic frame that shell includes metal plate and metal plate circumferential direction, it is characterised in that include the following steps：
（1）Place metal plate：According to design requirement, preparatory finishing prepares metal plate and circumferentially stays injection molding combination outer to metal plate
Prolong, the injection molding, which combines, has several external grooves being pre-machined in extension；Epitaxial surface coating is combined to combine glue-line in injection molding
Afterwards, in metal plate being placed on the table top of injection mold rear pattern plate；
（2）Type chamber Negative pressure：Preceding mould and rear mold are molded, intake valve is closed, passes through negative pressure air flue for type using vacuum equipment
Air extraction in chamber, keeps type intracavitary in negative pressure state, heating system preheats type chamber；
（3）Injection molding：After the completion of preheating, preheating system is closed, the plastic material of molten condition is injected through hot runner mechanism
Type chamber makes plastic material form product full of type chamber, and opens cooling system；
（4）Demoulding：After die sinking, ejector pin mechanism work, once when ejection, a thimble top metal plate, the synchronous top modeling of secondary thimble
Expect frame；Thimble in place after, Double-ejection, secondary thimble continues to push plastic frame, demoulds shell, and ejector pin mechanism is multiple
Position.
It combines extension and its structure to design by injection molding, reinforces the combination effect to metal plate and plastic frame, wherein gold
Cooling meat defect can effectively be absorbed by belonging to recess, guarantee the injection surface effect of outer surface, and plastic frame is not after moulding
It is easily-deformable, the effect of contraction of the plastic frame is reduced, the bond strength of metal plate and plastic frame is enhanced；In addition, this technology
Scheme is designed by structure and is sucked out type chamber air to form negative pressure state before injection molding, in injection molding, heats the plastic cement of state
Raw material can be rapidly filled with type chamber, improve the surface quality of injection efficiency and plastic cement products.
Further, a kind of quick injection molding technique of above-mentioned complex precise notebook computer casing, feature exist
In into when the operation of shape step 2, after preceding mould and rear mold molding, unlatching intake valve will be taken out using vacuum equipment by negative pressure air flue
Negative pressure air flue and the intracavitary air of type are taken, and air is supplemented by air intake duct on a small quantity, at this point, remaining on gas in last injection moulding process
Injection molding residue at mouth, or the injection molding residue in main airway groove on metal mesh is fallen into, it is taken out under the action of negative pressure with air
Out outside mold.
This step, which is added, in step 2 operation can effectively avoid the possibility of negative pressure airway obstruction.
The invention also provides a kind of quick injection molding mold of complex precise notebook computer casing, including preceding mould with
Rear mold, the preceding mould include successively from top to bottom along the vertical direction fixed plate and front template, and the rear mold is along the vertical direction by upper
It successively include rear pattern plate, positioning plate, support block and rear panel, the front template and rear pattern plate closed forming cavity, after described under
Panel is equipped with ejector pin mechanism, and the located plate of the thimble of the ejector pin mechanism and rear pattern plate penetrate type chamber, it is characterised in that：Institute
The intracavitary table top being provided with positioned at rear pattern plate upper surface for fixed metal plate of type is stated, the fixed plate plate is equipped with through front template
The injection nozzle of the hot runner mechanism of communicate-type chamber, the hot runner mechanism is located at table top side；If being offered in the rear pattern plate
It is communicated in dry with type chamber, outside and vacuum equipment is to logical negative pressure air flue, is provided with coil-shaped chamber in the front template and rear pattern plate
Heating system and cooling system.
Injection mold proposed by the invention is based on heating system and cooling system, to realize with the completion pair of RHCM technology
The injection molding of plastic frame is processed, and injection molding negative pressure structure design cooperation ejector pin mechanism realizes quick injection molding.
Further, a kind of quick injection molding mold of above-mentioned complex precise notebook computer casing, feature exist
Include the gas nozzle communicated positioned at rear pattern plate upper surface with type chamber, internally opened up by rear pattern plate lateral wall in, the negative pressure air flue
Main airway, the gas nozzle is connected by vertical branch airway with main airway.
The air passage structure of the above-mentioned optimization structure calmed the anger that is negative, main line bonus point branch effectively can cooperate vacuum equipment to extract
The intracavitary air of type forms vacuum effect.
Further, a kind of quick injection molding mold of above-mentioned complex precise notebook computer casing, feature exist
In the main airway and branch airway section are circle, and the section radius of main airway is greater than branch airway section radius.
The section radius of main airway, which is greater than branch airway section radius, can prevent the injection molding residue entered by branch airway from entering master
Block after air flue.
Further, a kind of quick injection molding mold of above-mentioned complex precise notebook computer casing, feature exist
In the gas nozzle is tapered, is less than the connection section with branch airway with the connection section of type chamber.
Cone-shaped air tap can greatly reduce the amount of overflowing into of injection raw material at gas nozzle.
Further, a kind of quick injection molding mold of above-mentioned complex precise notebook computer casing, feature exist
Be equipped with solid-holding slot corresponding with each branch airway upper and lower position in, the main airway bottom, the rear pattern plate lateral wall be equipped with into
Air valve, the solid-holding slot are connected to by the air intake duct opened up in rear pattern plate with intake valve, are fixed with metal in the solid-holding slot
Net.
Groove and metal mesh structure prevent it from accumulating in main airway and hinder for collecting the injection molding residue to be fallen off by branch airway
Plug.
Further, a kind of quick injection molding mold of above-mentioned complex precise notebook computer casing, feature exist
In the solid-holding slot is hemispherical groove, and the metal mesh is bonded setting with hemispherical groove.
Hemispherical groove, which has, preferably accommodates effect, will not occur being easy to take in injection molding residue when residue is discharged
Dead angle.
Further, a kind of quick injection molding mold of above-mentioned complex precise notebook computer casing, feature exist
In the front template lower surface is circumferentially provided with airtight seal ring along type chamber.
The effect of airtight seal ring is to provide better airtight effect when type chamber vacuumizes for type chamber.
Further, a kind of quick injection molding mold of above-mentioned complex precise notebook computer casing, feature exist
In the ejector pin mechanism is Double-ejection machine comprising the secondary pneumatic jack being set on rear panel is connected to secondary pneumatic jack
A top plate and secondary top plate on two output end faces are provided with successively located plate, rear pattern plate and platform on top plate
Face penetrates a thimble of type chamber, is provided with successively located plate, rear pattern plate on the secondary top plate and penetrates table-board to right or left two sides
The secondary thimble of cavity portion is additionally provided with the limit base for limiting secondary top plate stroke on the rear panel.
Double-ejection machine has been mature technology at present, is widely used in the mold of product structure complexity, when demoulding one
Secondary thimble and secondary thimble advance with cloth, and when a thimble ejection position is defined, secondary thimble will continue to advance, until producing
Pint is fallen.This programme guarantees the smooth ejection device of produced notebook computer casing by the ejection effect of Double-ejection machine.
Above-mentioned technical proposal can be seen that the present invention and have the advantages that：Injection molding work provided by the present invention
Skill and mold carry out unique texture and process design specifically for the notebook computer casing of metal bonding plastic frame,
Reinforce the combination effect to metal plate and plastic frame, plastic frame is unlikely to deform after moulding, reduces plastic frame
Effect of contraction, enhance metal plate and plastic frame bond strength；In addition, using the knot of mold in moulding process of the invention
Structure design is sucked out type chamber air to form negative pressure state before injection molding, and in injection molding, the plastic material for heating state can be fast
Speed is full of type chamber, the surface quality of injection efficiency and plastic cement products is greatly improved, so as to shorten the production cycle.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of prepared notebook computer casing in the embodiment of the present invention 1；
Fig. 2 is the overall structure diagram of quick injection molding mold in the embodiment of the present invention 1；
Fig. 3 is the partial enlargement structural representation in Fig. 2 at A；
In figure：
100 metal plates, 200 plastic frames, 300 injection moldings combine extension, 400 grooves;
1 fixed plate, 2 front templates, 3 rear pattern plates, 31 table tops, 4 positioning plates, 5 support blocks, 6 rear panels, 7 type chambers, 8 ejector pin mechanisms, 81 1
Secondary top plate, 82 2 top plates, 83 thimbles, 84 2 thimbles, 85 limit bases, 9 hot runner mechanisms, 10 negative pressure air flues, 101 gas
Mouth, 102 main airways, 103 branch airway, 11 solid-holding slots, 12 air intake ducts, 13 airtight seal rings.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", " clockwise ", " inverse
The orientation or positional relationship of the instructions such as hour hands " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description originally
Invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific side
Position construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two
It is a or more than two, unless otherwise restricted clearly.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
Embodiment 1
Metal plate combination plastic edge frame notebook computer casing air-tightness and aiming at the problem that poor bonding strength on the market at present,
Fig. 1 shows a kind of New-type computer shell comprising the metal plate 100 of finishing preparation in advance, and be molded with metal plate 100
In conjunction with plastic frame 200, the metal plate is circumferentially provided with the extension 300 in conjunction with the injection molding of the one of metal plate 100, the institute
Step surface and 100 connecting shaping of metal plate that plastic frame 200 is combined extension 300 to cooperate by a circle of inner ring with injection molding are stated,
The injection molding, which combines, has several grooves 400 in extension 300, the groove 400 is circular groove, and it is recessed also to can choose dovetail
Slot, square groove etc.；The Novel laptop shell has better bond strength.
As shown in Fig. 2, being processed outside a kind of complex precise laptop used to prepare above-mentioned notebook computer casing
The quick injection molding mold of shell, including preceding mould and rear mold, the preceding mould from top to bottom successively include fixed plate 1 along the vertical direction
With front template 2, the rear mold from top to bottom successively includes rear pattern plate 3, positioning plate 4, support block 5 and rear panel 6, institute along the vertical direction
Front template 2 and 3 closed forming cavity 7 of rear pattern plate are stated,
The rear panel 6 is equipped with ejector pin mechanism 8, and the located plate 4 of the thimble of the ejector pin mechanism 8 and rear pattern plate 3 penetrate type chamber
7, it is characterised in that：It is located at 3 upper surface of rear pattern plate in the type chamber 7 and is provided with the table top 31 for fixed metal plate 100, it is described
Fixed plate 1 is equipped with the hot runner mechanism 9 through 2 communicate-type chamber 7 of front template, and the injection nozzle of the hot runner mechanism 9 is located at table top
31 sides, and be arranged in pairs；The negative pressure for communicating with type chamber 7, communicating outside with vacuum equipment in several is offered in the rear pattern plate 3
The heating system and cooling system of coil-shaped chamber 7 are provided in air flue 10, the front template 2 and rear pattern plate 3.
Wherein, the negative pressure air flue 10 includes the gas nozzle 101 communicated positioned at 3 upper surface of rear pattern plate with type chamber 7, and by rear
The main airway 102 that 3 lateral wall of template internally opens up, the gas nozzle 101 pass through vertical branch airway 103 and 102 phase of main airway
Connection.
Wherein, the main airway 102 and 103 section of branch airway are circle, and the section radius of main airway 102 is greater than branch gas
103 section radius of road.
Wherein, the gas nozzle 101 is tapered, and the connection for being less than itself and branch airway 103 with the connection section of type chamber 7 is cut
Face.
Wherein, 102 bottom of main airway is equipped with solid-holding slot 11 corresponding with each 103 upper and lower position of branch airway, after described
3 lateral wall of template is equipped with intake valve, and the solid-holding slot 11 is connected to by the air intake duct 12 opened up in rear pattern plate 3 with intake valve,
Metal mesh is fixed in the solid-holding slot 11.
Wherein, the solid-holding slot 11 is hemispherical groove, and the metal mesh is bonded setting with hemispherical groove.
Wherein, 2 lower surface of front template is circumferentially provided with airtight seal ring 130 along type chamber 7.
Wherein, the ejector pin mechanism 8 is Double-ejection machine comprising the secondary pneumatic jack 81 being set on rear panel, respectively
The top plate 81 and secondary top plate 82 being connected on 80 liang of output end faces of secondary pneumatic jack, be provided on a top plate 81 according to
Secondary located plate 4, rear pattern plate 3 and table top 31 penetrate a thimble 83 of type chamber 7, are provided on the secondary top plate 82 and successively pass through
Positioning plate 4, rear pattern plate 3 penetrate the secondary thimble 84 of 31 left and right sides type chamber of table top, 7 part, are additionally provided on the rear panel 6
For limiting the limit base 85 of secondary 82 stroke of top plate.
Quick injection molding mold based on a kind of above-mentioned complex precise notebook computer casing prepares notes shown in Fig. 1
The processing technology of this computer casing, includes the following steps：
1. placing metal plate：According to design requirement, preparatory finishing prepares metal plate 100 and circumferentially stays injection molding to combine metal plate
Extension 300, the injection molding, which combines, has several grooves 400 being pre-machined in extension 300；300 surface of extension is combined in injection molding
After coating combines glue-line, metal plate 100 is placed on the table top 31 of injection mold rear pattern plate 3；
2. type chamber Negative pressure：Preceding mould and rear mold are molded, after preceding mould and rear mold molding, intake valve is opened, is set using vacuum
The standby air extracted in negative pressure air flue 10 and type chamber 7, and air is supplemented by air intake duct 12 on a small quantity, at this point, last injection moulding process
In remain on the injection molding residue at gas nozzle 101, or the injection molding residue in solid-holding slot 11 on metal mesh is fallen into, in suction function
Under with air extraction mold outside, be then closed intake valve, using vacuum equipment by negative pressure air flue 10 by type chamber 7 air take out
Out, make in negative pressure state in type chamber 7, heating system preheats type chamber 7；
3. injection molding：After the completion of preheating, preheating system is closed, the plastic material of molten condition is injected through hot runner mechanism 9
Type chamber 7 makes plastic material form product full of type chamber 7, and opens cooling system；
4. demoulding：After die sinking, ejector pin mechanism 8 works, and once when ejection, a thimble 83 pushes up metal plate 100, and secondary thimble 84 is same
Step top plastic frame 200；Thimble 83 in place after, carry out Double-ejection, secondary thimble 84 continues to push plastic frame 200,
Demould shell, ejector pin mechanism 8 resets.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, several improvement can also be made, these improvement also should be regarded as of the invention
Protection scope.
Claims (10)
1. a kind of quick injection molding technique of complex precise notebook computer casing, the shell includes metal plate（100）And
The plastic frame of metal plate circumferential direction（200）, it is characterised in that include the following steps：
1）Place metal plate：According to design requirement, preparatory finishing prepares metal plate（100）And injection molding is circumferentially stayed to tie metal plate
Close extension（300）, the injection molding is in conjunction with extension（300）It is upper that there are several grooves being pre-machined（400）；Extension is combined in injection molding
（300）After surface coating combines glue-line, by metal plate（100）It is placed on injection mold rear pattern plate（3）Table top（31）In upper；
2）Type chamber Negative pressure：Preceding mould and rear mold are molded, intake valve is closed, passes through negative pressure air flue using vacuum equipment（10）It will
Type chamber（7）In air extraction, make type chamber（7）Interior is in negative pressure state, and heating system is to type chamber（7）It is preheated；
3）Injection molding：After the completion of preheating, preheating system is closed, by the plastic material of molten condition through hot runner mechanism（9）Note
Enter type chamber（7）, make plastic material full of type chamber（7）Product is formed, and opens cooling system；
4）Demoulding：After die sinking, ejector pin mechanism（8）Work, once when ejection, a thimble（83）Push up metal plate（100）, secondary top
Needle（84）Synchronous top plastic frame（200）；Thimble（83）After in place, Double-ejection, secondary thimble are carried out（84）Continue to push up
Dynamic plastic frame（200）, demould shell, ejector pin mechanism（8）It resets.
2. a kind of quick injection molding technique of complex precise notebook computer casing according to claim 1, feature
It is, into when the operation of shape step 2, after preceding mould and rear mold molding, opens intake valve, extract negative pressure air flue using vacuum equipment
（10）And type chamber（7）Interior air, and by air intake duct（12）A small amount of supplement air, at this point, remaining in last injection moulding process
Gas nozzle（101）The injection molding residue at place, or fall into solid-holding slot（11）Injection molding residue on interior metal mesh, under the action of negative pressure with
Air is extracted out outside mold.
3. a kind of quick injection molding mold of complex precise notebook computer casing, including preceding mould and rear mold, the preceding mould edge
Vertical direction from top to bottom successively includes fixed plate（1）And front template（2）, the rear mold from top to bottom successively wraps along the vertical direction
Include rear pattern plate（3）, positioning plate（4）, support block（5）And rear panel（6）, the front template（2）With rear pattern plate（3）Closed forming cavity
（7）, the rear panel（6）It is equipped with ejector pin mechanism（8）, the ejector pin mechanism（8）The located plate of thimble（4）And rear pattern plate
（3）Penetrate type chamber（7）, it is characterised in that：The type chamber（7）It is interior to be located at rear pattern plate（3）Upper surface is provided with for fixing metal
Plate（100）Table top（31）, the fixed plate（1）It is equipped with through front template（2）Communicate-type chamber（7）Hot runner mechanism（9）, institute
State hot runner mechanism（9）Injection nozzle be located at table top（31）Side；The rear pattern plate（3）Inside offer several interior and type chambers（7）
The negative pressure air flue communicate, communicated outside with vacuum equipment（10）, the front template（2）With rear pattern plate（3）Inside it is provided with coil-shaped chamber
（7）Heating system and cooling system.
4. a kind of quick injection molding mold of complex precise notebook computer casing according to claim 3, feature
It is, the negative pressure air flue（10）Including being located at rear pattern plate（3）Upper surface and type chamber（7）The gas nozzle communicated（101）, and by rear
Template（3）The main airway that lateral wall internally opens up（102）, the gas nozzle（101）Pass through vertical branch airway（103）With main gas
Road（102）It is connected.
5. a kind of quick injection molding mold of complex precise notebook computer casing according to claim 4, feature
It is, the main airway（102）And branch airway（103）Section is round, and main airway（102）Section radius be greater than branch airway
（103）Section radius.
6. a kind of quick injection molding mold of complex precise notebook computer casing according to claim 4, feature
It is, the gas nozzle（101）It is tapered, with type chamber（7）Connection section be less than itself and branch airway（103）Connection section.
7. a kind of quick injection molding mold of complex precise notebook computer casing according to claim 4, feature
It is, the main airway（102）Bottom is equipped with and each branch airway（103）The corresponding solid-holding slot in upper and lower position（11）, the rear mold
Plate（3）Lateral wall is equipped with intake valve, the solid-holding slot（11）Pass through rear pattern plate（3）The air intake duct inside opened up（12）With intake valve
Connection, the solid-holding slot（11）Inside it is fixed with metal mesh.
8. a kind of quick injection molding mold of complex precise notebook computer casing according to claim 7, feature
It is, the solid-holding slot（11）For hemispherical groove, the metal mesh is bonded setting with hemispherical groove.
9. a kind of quick injection molding mold of complex precise notebook computer casing according to claim 3, feature
It is, the front template（2）Lower surface is along type chamber（7）Circumferentially it is provided with airtight seal ring（13）.
10. a kind of quick injection molding mold of complex precise notebook computer casing according to claim 3, feature
It is, the ejector pin mechanism（8）For Double-ejection machine comprising the secondary pneumatic jack being set on rear panel（81）, it is separately connected
In secondary pneumatic jack（80）A top plate on two output end faces（81）With secondary top plate（82）, a top plate（81）Upper setting
There is successively located plate（4）, rear pattern plate（3）And table top（31）Penetrate type chamber（7）A thimble（83）, the secondary top plate
（82）On be provided with successively located plate（4）, rear pattern plate（3）Penetrate table top（31）Left and right sides type chamber（7）Partial secondary top
Needle（84）, the rear panel（6）On be additionally provided with for limiting secondary top plate（82）The limit base of stroke（85）.
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| CN201810788901.XA CN108819094A (en) | 2018-07-18 | 2018-07-18 | A kind of the quick injection molding technique and mold of complex precise notebook computer casing |
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|---|---|---|---|
| CN201810788901.XA CN108819094A (en) | 2018-07-18 | 2018-07-18 | A kind of the quick injection molding technique and mold of complex precise notebook computer casing |
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| CN108819094A true CN108819094A (en) | 2018-11-16 |
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Application publication date: 20181116 |
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