CN104972593B - The mould and forming method of carbon fibre composite plastic products - Google Patents
The mould and forming method of carbon fibre composite plastic products Download PDFInfo
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- CN104972593B CN104972593B CN201410132435.1A CN201410132435A CN104972593B CN 104972593 B CN104972593 B CN 104972593B CN 201410132435 A CN201410132435 A CN 201410132435A CN 104972593 B CN104972593 B CN 104972593B
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Abstract
The present invention relates to a kind of mould and forming method of carbon fibre composite plastic products, wherein, mould mainly includes cover half component, dynamic model component, running gate system and ejecting mechanism, and the forming cavity for being molded carbon fibre composite plastic products is formed between the cover half component and the dynamic model component；The cover half component includes the fixed clamping plate and runner plate being linked in sequence；The running gate system includes：Sprue bush, the sprue bush is fixed on the fixed clamping plate；Multiple main runners and multiple runners；Wherein the multiple main runner and the multiple runner are located on the runner plate respectively；Each main runner is connected with the sprue bush respectively；The multiple runner is respectively communicated with one of them main runner；Multiple cast gates being connected with the forming cavity；Wherein, each described runner has been respectively communicated with a cast gate, and the sprue bush is also communicated with a cast gate.
Description
Technical field
Moulded the present invention relates to the preparation of carbon fibre composite and manufacture field, more particularly to a kind of carbon fibre composite
The mould and forming method of material products.
Background technology
Major part plastic products use makrolon (Polycarbonate, PC) and polyacrylonitrile at present
The engineering plastics of (Acrylonitrile Butadiene Styrene, ABS) synthesis are made as raw material by injection molding
.However, thicker using plastic products thickness made from this kind of material, weight is intersected, and is easily deformed and electromagnetism after shaping
Shielding is poor.When being especially used in the plastic products production in modern times, tend not to meet demand of the consumer to plastic products.
It would therefore be highly desirable to which providing one kind can be molded that lighter, thinner, intensity is higher and the more preferable plastic products of electromagnetic wave shielding
Mould and forming method, to obtain more excellent plastic products.
The plastic products for meeting the demand can be produced as injection raw material using carbon fibre composite；However,
Because the mobility of carbon fibre composite is bad so that the product produced tends not to meet quality requirement；Therefore this kind
Material is at present using less in the injection molding of plastic products.
The content of the invention
The technical problem to be solved in the present invention is that the drawbacks described above for prior art is compound there is provided a kind of carbon fiber
The mould and forming method of material plastic product, can efficiently solve above mentioned problem, light weight be made, thickness of thin, strong
Degree is high, electromagnetic wave shielding is good and the measured carbon fibre composite plastic products of matter.
The technical solution adopted for the present invention to solve the technical problems is：A kind of carbon fibre composite plastic products are provided
Mould, including cover half component, dynamic model component, running gate system and ejecting mechanism, the cover half component and the dynamic model group
The forming cavity for being molded carbon fibre composite plastic products is formed between part；
The cover half component includes the fixed clamping plate and runner plate being linked in sequence,
The running gate system includes：
Sprue bush, the sprue bush is fixed on the fixed clamping plate；
Multiple main runners and multiple runners；Wherein the multiple main runner and the multiple runner difference
On the runner plate；Each main runner is connected with the sprue bush respectively；The multiple time runner connects respectively
Lead in one of them main runner；
Multiple cast gates being connected with the forming cavity；Wherein, each described runner has been respectively communicated with a cast gate,
And the sprue bush is also communicated with a cast gate.
In one embodiment, the cover half component also includes ejection bottom plate, retaining plate and the cover half being linked in sequence
Plate；Wherein, the ejection bottom plate is connected with the runner plate；
The dynamic model component includes the moving platen and moving clamping plate being linked in sequence；Wherein described moving clamping plate and the cover half
The distance between component is more than the distance between the moving platen and described cover half component.
In one embodiment, the multiple main runner on the runner plate central crossbar be distributed, and respectively with carbon
The diagonal of fibrous composite plastic products is parallel to each other.
In one embodiment, the running gate system also includes multiple glue inlet tubes；The glue inlet tube perpendicular to the runner plate,
And extend along towards the direction of the dynamic model component；
Wherein, runner is respectively correspondingly fixedly connected with a glue inlet tube each time, and the sprue bush is also associated with
One glue inlet tube；The multiple glue inlet tube is connected with the corresponding cast gate respectively.
Preferably, the cast gate is between spot pouring mouth, and a diameter of 0.5~1.5mm of the spot pouring mouth.
Preferably, the running gate system also includes multiple support blocks；The multiple support block is separately fixed at the ejection
On bottom plate；Worn in each support block and be fixed with least one described glue inlet tube.
In one embodiment, the mould of the carbon fibre composite plastic products also includes：
Deduction mechanism, the deduction mechanism includes deduction and sliding part；
The deduction side is fixed on the ejection bottom plate, and the opposite side of the deduction is fixed on moving clamping plate；And
Chute is formed with the deduction, the sliding part is through the chute and is fixed on the moving platen, and the sliding part
It may move in the chute.
In one embodiment, the ejecting mechanism includes at least one Slanted ejecting component；The Slanted ejecting component includes：Oblique top with
And inclined top guide block；
The inclined top guide block is fixed on the retaining plate；And connect on the inclined top guide block with the oblique top
Tactile side is formed with guide groove；
The side of the oblique top is movably limited in the guide groove；The opposite side of the oblique top and the plastics system
Condition connects.
In one embodiment, the ejecting mechanism includes at least one slide block assembly；Each slide block assembly includes sliding
Block positioning seat, sliding block, Angle Pin and two SLIDE GUIDEs；
The sliding block positioning seat is fixed on the moving platen；And be formed with the side of the sliding block positioning seat for pair
The spacing limiting section of the sliding block；The Angle Pin is located in the sliding block positioning seat and formed on the side of the limiting section, and
Partial denudation is outside the sliding block positioning seat；
It is further opened with what is be engaged with the exposed part on the outside of the sliding block positioning seat of the Angle Pin on the sliding block
Inclined guide groove；In matched moulds, the Angle Pin through the sliding block positioning seat is inserted into the inclined guide groove of the sliding block, and described
The side of sliding block and the limiting section of the sliding block positioning seat lean；
Two SLIDE GUIDEs are separately fixed on the solid plate, and are oppositely arranged on the sliding block both sides；Institute
State the plane for being also formed with sliding between two SLIDE GUIDEs for the sliding block.
To solve technical problem, the present invention still further provides a kind of shaping side of carbon fibre composite plastic products
Method, comprises the following steps：
S1, under preset temperature toast carbon fibre composite；
S2, the mould provided with multiple glue inlet tubes is locked on injection machine with presetting clamp force；
S3, with presetting heating-up temperature mould is heated and is incubated；
S4, the technological parameter for adjusting injection machine, and the carbon fibre composite after step S1 processing is noted by injection machine
In the forming cavity for entering mould, the forming process of plastic products is completed by way of multiple glue inlet tubes use Multi-spot pouring；
S5, mould mold and eject carbon fibre composite plastic products.
Implement the mould and forming method of the carbon fibre composite plastic products of the present invention, its advantage exists
In：Injection molding is carried out to carbon fibre composite to obtain plastic products by using the mode of Multi-spot pouring, and uses two
The mode of secondary die sinking is stripped to plastic products, enabling the good carbon fibre composite plastic products of production mass；
Further, since the mould, which has, includes the ejecting mechanism of oblique top and sliding block so that in knockout course can successfully from
Depart from the structures such as the back-off and side opening of plastic products, improve the production efficiency and Forming Quality of product.Due to the present invention
It is molded using carbon fibre composite as raw material, can effectively reduces the thickness of obtained plastic products, and subtract
Its light weight, and obtained plastic products have good electromagnetic wave shielding, and higher intensity, are particularly suitable for use in manufacture
Notebook computer casing, and disclosure satisfy that demand of the consumer to notebook computer casing.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the structural representation of the carbon fibre composite plastic products in one embodiment of the invention；
Fig. 2 is the forming die structure half sectional view of the carbon fibre composite plastic products in one embodiment of the invention；
Fig. 3 is the part-structure schematic diagram of cover half component in Fig. 2；
Fig. 4 is the structural representation of the running gate system in one embodiment of the invention；
Fig. 5 is the structural representation of the running gate system (removal sprue bush) in one embodiment of the invention；
Fig. 6 is the structural representation of Slanted ejecting component in one embodiment of the invention and plastic products；
Fig. 7 is the structural representation of slide block assembly in one embodiment of the invention and plastic products；
Fig. 8 is the structure sectional view of slide block assembly in one embodiment of the invention and plastic products；
Fig. 9 is the forming method flow chart of the carbon fibre composite plastic products in one embodiment of the invention.
Embodiment
In order that the purpose of the present invention, technical scheme and advantage are more clearly understood, below in conjunction with drawings and examples,
The present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used for explaining this hair
It is bright, it is not intended to limit the present invention.
Reference picture 1, is the structural representation of the carbon fibre composite plastic products in one embodiment of the invention.In this reality
Apply in example, the plastic products 1 are notebook computer casing.Wherein, the plastic products 1 include housing 11 and on housing 11
Assembling structure 12 (such as back-off, side opening).Housing 11 and assembling structure 12 pass through injection by carbon fibre composite
Mode is made.Wherein, it is therefore, compound using carbon fiber because carbon fibre composite has excellent electricity and mechanical property
The thickness of plastic products can be effectively thinned to prepare plastic products in material, mitigate the weight of plastic products, and is provided simultaneously with
The advantages of intensity is high, electromagnetic wave shielding is good, is particularly suitable for use in manufacturing the frivolous plastic products of the pursuit such as notebook computer casing.
Below exemplified by preparing the plastic products of the notebook computer casing in Fig. 1, illustrate that the carbon fiber of the present invention is combined
The concrete structure of the mould of material plastic product.
Fig. 2 and Fig. 3 show the structural representation of the mould of carbon fibre composite notebook computer casing.Reference
Fig. 2, the mould 2 at least includes：Cover half component 21, dynamic model component 22, running gate system 24 (referring to Fig. 5), deduction mechanism 23,
And ejecting mechanism (including the thimble 25 in Fig. 4, slide block assembly 27 in the Slanted ejecting component 26 and Fig. 7 in Fig. 6).
Referring in particular to Fig. 2, cover half component 21 and dynamic model component 22 are oppositely arranged, and are formed between the two in injection mold
Forming cavity；The forming cavity is adapted with the shapes and sizes of the carbon fibre composite plastic products of required shaping.Cover half component
21 is main including being linked in sequence with lower component：Fixed clamping plate 211, runner plate 212, water gap plate 213, ejection bottom plate 214, ejection
Fixed plate 215 and solid plate 217.Wherein, the distance between fixed clamping plate 211 and dynamic model component 22 be more than solid plate 217 with
The distance between dynamic model component 22.Wherein, such as screw of runner plate 212 is fixed mode and is fixedly connected with fixed clamping plate 211, is used for
The carbon fibre composite of injection is respectively fed in each cast gate by the runner plate 212.Water gap plate 213 again may be by
Such as screw is fixed mode and is fixedly connected with runner plate 212, during for being stripped after shaping that regrinding-material is mutual with plastic products
Disconnect.Ejection bottom plate 214 is arranged on water gap plate 213, and removable relative to water gap plate 213 when mould 2 is molded.Top
Go out fixed plate 215 to be fixed on ejection bottom plate 214 by modes such as such as screw fixations, and each side point of retaining plate 215
Do not aligned with ejecting the respective side of bottom plate 214.
In an embodiment of the present invention, at least two square iron 216 can also be set on cover half component 21, for increasing shaping
The thickness of mould.At least two square iron 216 are arranged on water gap plate 213, and adjacent with ejection bottom plate 214.Specifically according to Fig. 2
And Fig. 3, in the present embodiment, eject the length of bottom plate 214 and the equal length of water gap plate 213, but the width of ejection bottom plate 214
Less than the width of water gap plate 213.Therefore, on the relative two side and water gap plate 213 that ejection bottom plate 214 extends along its length
Emplacing platform (non-label) is formed between respective side wall.At least two square iron 216 respectively be located at the emplacing platform on, and respectively with top
Go out bottom plate 214 and retaining plate 215 is adjacent.Solid plate 217 is fixed on two tops of square iron 216.
With further reference to Fig. 2, the side away from runner plate 212 is further opened with for running gate system 24 on fixed clamping plate 211
The mounting hole (not shown) that sprue bush 241 is installed.Sprue bush 241 is inserted into mounting hole, for carbon fibre composite to be led to
Sprue bush 241 is crossed to introduce in mould 2.
In addition, cover half component 21 also includes the unshowned fixed mold of accompanying drawing, core mold insert and cooling system etc..Its
In, in one embodiment of the invention, the mould can set 2 fixed molds and 76 core mold inserts.And cool down
System can use the form of many cooling circuits, such as can include cooling water channel, cooling well.Preferably, the mould
In can also be sealed using O-ring seals, the structure such as block up.Wherein, above-mentioned fixed mold, core mold insert and cooling
The quantity and structure and form of system each depend on the specific shape of product to be produced, and belong to prior art, herein not
Repeat again.
With further reference to Fig. 2, dynamic model component 22 mainly includes the moving clamping plate 221 and moving platen 222 being linked in sequence.It is dynamic
The distance between baffle plate 221 and cover half component 21 are more than the distance between moving platen 222 and cover half component 21；And moving platen
222 are fixedly connected with moving clamping plate 221.In addition, moving platen 222 is oppositely arranged with solid plate 217, and moving platen 222 and cover half
Forming cavity is formed between plate 217, the shapes and sizes phase of the forming cavity and the carbon fibre composite plastic products of required shaping
Adaptation.In addition, according to the shape of specific product, dynamic mould core is also correspondingly provided with dynamic model component 22, in the present embodiment
In the dynamic mould core number be 1.Wherein, dynamic mould core belongs to prior art, and here is omitted.
When needing to manufacture the frivolous carbon fibre composite plastic products of thickness, in order to realize that plastic products preferably take off
Mould, and then the quality of obtained plastic products is improved, the mode that twice-die-opening is employed in the present invention is molded.
Reference picture 2, specifically, in the present embodiment, twice-die-opening is realized by deduction mechanism 23.Deduction mechanism 23
Both sides are located on dynamic model component 22 and cover half component 21 respectively, and mould can be efficiently controlled by deduction mechanism 23
Die sinking order, realizes twice-die-opening.
Specifically, the deduction mechanism 23 mainly includes deduction 231 and sliding part 232.Wherein, the side of deduction 231
It is fixed on ejection bottom plate 214, the opposite side of deduction 231 is fixed on moving clamping plate 221.Along dynamic model component 22 on deduction 231
Die sinking direction (direction i.e. away from cover half component 21) be formed with chute (non-label).Sliding part 232 passes through chute and fixation
On moving platen 222, and sliding part 232 may move in chute.When proceeding by die sinking after the completion of injection, dynamic model component 22
The direction movement of cover half component 21 is directed away under the drive of injection machine, and it is fixed to drive sliding part 232 to be directed away from along chute
The direction movement of membrane module 21, realization is once molded；When sliding part 232 slides into chute end, in the drive of deduction 231
Under, ejection bottom plate 214 is also directed away from the direction movement of cover half component 21, so as to realize twice-die-opening.
Preferably, in the present embodiment, deduction mechanism 23 also includes deduction fixture 233.Wherein, deduction 231 passes through button
Machine fixture 233 is fixed on ejection bottom plate 214.In the present embodiment, deduction fixture 233 and sliding part 232 are preferably solid
Determine screw.Certainly, in other embodiments, deduction fixture 233 and sliding part 232 can also be fixed column or fixing bolt
Deng.
Fig. 4 and Fig. 5 show the structure of the running gate system 24 in one embodiment of the invention.Fig. 2 and Fig. 4 is combined in the lump, is poured
Injection system 24 includes sprue bush 241, multiple main runners 242, multiple runners 243, multiple glue inlet tubes 244 and multiple poured
Mouth 245.Wherein, sprue bush 241 is fixed on the mounting hole of fixed clamping plate 211 by modes such as such as screw fixations.
Wherein, multiple main runners 242 and secondary runner 243 are respectively positioned on runner plate 212 (referring to Fig. 2-3), and are led to
Cross and dig out corresponding groove on runner plate 212 to realize.
Multiple main runners 242 are directly connected with sprue bush 241 respectively, enter shaping mould for receiving from sprue bush 241
Carbon fibre composite in tool 2, and the carbon fibre composite of injection is shunted along main shunting direction.Reference picture
5, in a specific embodiment of the invention, running gate system 24 includes two main runners 242, and two main runners 242 are distinguished
Connected with sprue bush 241.In order to realize the uniform cast to plastic products 1, it is preferable that two main runners 242 are on runner
The central crossbar distribution of plate 212, and it is respectively parallel to two diagonal of plastic products 1, so that in casting process, carbon fiber
Composite can quickly and evenly be full of the various pieces of die cavity.
Multiple runners 243 are connected with one of them main runner 242 respectively.In the embodiment shown in fig. 5, often
Five runners 243 have been respectively communicated with individual main runner 242, and five runners 243 are on each main runner 242
It is located at the both sides at the center of runner plate 212 respectively；Specifically, on same main runner 242, at the center of runner plate 212
Three runners 243 are distributed with side；And two runners 243 are then distributed with another side.
Each time runner 243 has been respectively fixedly connected with multiple glue inlet tubes 244, and the lower section of the center of sprue bush 241
A glue inlet tube 244 is also associated with, glue inlet tube 244 is used to travel further into cast gate for entering the carbon fibre composite of runner
In.Wherein, each glue inlet tube 244 extends perpendicular to runner plate 212, and along towards the direction of dynamic model component 22.And each enter glue
The end of pipe 244 is also associated with a cast gate 245.Each cast gate 245 is connected into the forming cavity of mould 2 respectively.
By upper, carbon fibre composite by the sprue bush 241 being sequentially communicated, main runner 242, secondary runner 243, enter
Sebific duct 244 and correspondence cast gate 245 are respectively enterd in forming cavity, so as to realize the cast of carbon fibre composite.Wherein, cast gate
245 be preferably spot pouring mouth, and the diameter of cast gate 245 is preferably between 0.5~1.5mm, to be more preferably 1mm.
In the mould of conventional plastic products, glue (only having 1 spot pouring mouth) is normally only entered using single-point.And
In the present invention, because the mobility of carbon fibre composite is bad, hold during using carbon fibre composite as injected plastics material
Easily occur the phenomenon of misrun, have impact on the Forming Quality of carbon fibre composite plastic products；Therefore need to set in the present invention
Put multiple spot pouring mouths.Referring to Fig. 4-5, especially for larger-size plastic products, such as 14 cun notebook computer casings, due to
This kind of plastic products it is excessive, it is necessary to from it is multi-faceted enter traveling pour, therefore 11 spot pouring mouths are preferably provided with the present embodiment.It is logical
Cross using more click through glue by the way of enable carbon fibre composite effectively be full of forming cavity, it is thus possible to obtain quality compared with
Good plastic products.Certainly, according to the difference of product size, the quantity of spot pouring mouth can also be other.
In addition, in order to realize time being fixedly connected between runner 243 and flow-path tube 244, in an embodiment of the present invention
It is additionally provided with multiple support blocks 246.Reference picture 3 and Fig. 5 in the lump, wherein, opened respectively on ejection bottom plate 214 and retaining plate 215
Provided with multiple support block mounting holes (non-label) run through, support block 246 is separately mounted in corresponding support block mounting hole；Cause
This support block 246 is fixed on ejection bottom plate 214.Worn respectively in each support block 246 and be fixed with least one and above-mentioned enter
Sebific duct 244, for glue inlet tube 244 to be supported and fixed.
For the plastic products 1 with multiple back-offs or side opening, in order to realize that the demoulding of product is ejected, its mould
2 ejector pin mechanism is typically realized using multicompartments such as thimble, oblique top and sliding blocks.
The thimble 25 of ejecting mechanism has been shown in particular in above-mentioned Fig. 4-5.Wherein, thimble 25 is fixed on retaining plate
On 215.Wherein 11 thimbles 25 for corresponding respectively to each glue inlet tube 244 are illustrate only in figs. 4-5.However, according to this hair
A bright embodiment,, can also be in the circumference along plastic products in addition to above-mentioned 11 thimbles 25 in order to which ejection is better achieved
It is distributed multiple thimbles 25.Wherein, in the embodiment for preparing 14 cun of notebook computer casing plastic products, the quantity of thimble 25 is
24.Certainly, the quantity of the thimble depends on the shape of specific plastic products, and is not limited to proposed by the invention specific
Quantity.
Fig. 6-8 shows the structural representation of the critical piece of ejecting mechanism according to an embodiment of the invention.Wherein, originally
The ejecting mechanism of embodiment also includes at least one Slanted ejecting component 26 and at least one slide block assembly 27.
Specifically, Fig. 6 shows the structural representation of one of Slanted ejecting component 26 of ejecting mechanism.As shown in fig. 6,
Slanted ejecting component 26 includes oblique top 261, inclined top guide block 262 and oblique top fixture 263.With oblique top 261 on inclined top guide block 262
The side being in contact is formed with guide groove (non-label).The side shape of oblique top 261 is adapted with the shape of guide groove, and spacing
In in the guide groove；And oblique top 261 may move in guide groove.The back-off structure phase of the opposite side of oblique top 261 and plastic products 1
Even.Preferably, in one embodiment of the invention, the guide groove is T-slot.Further, (the reference of retaining plate 215
Multiple and inclined top guide block cross section projection of shape identical hole (non-label) is offered on Fig. 3).Inclined top guide block 262 is worn
In in the hole on retaining plate 215, and by causing inclined top guide block from insertion oblique top fixture 263 on ejection bottom plate 214
262 are fixed on retaining plate 215.Preferably, the oblique top fixture 263 is preferably fixed screw, fixing bolt etc..
After injection, pressurize and the cooling procedure of notebook computer casing to be done, mould starts die sinking, and injection machine drives dynamic
Membrane module 22 is directed away from the direction movement of cover half component 21.When the sliding part 232 being fixed on moving platen 222 is along deduction 231
On slide to deduction 231 end when, due to the deduction fixture 233 on deduction 231 be fixed on ejection bottom plate 214
On；Therefore, ejection bottom plate 214 is servo-actuated the continuation campaign of membrane module 22 under the drive of deduction 231 and is directed away from cover half component
21 direction movement, and thus drive Slanted ejecting component 26 to be moved, wherein the motion process can be decomposed into oblique top 261 oblique
The motion in the guide groove of guide pad 262 and the motion along ejection plastic products direction (being upwardly direction on Fig. 6) are pushed up,
And then oblique top 261 departs from the back-off structure of plastic products 1.
Fig. 7-8 shows the structure of one of slide block assembly 27 in one embodiment of the invention.Reference picture 7-8, this hair
Bright slide block assembly 27 mainly includes：Sliding block positioning seat 271, the first fixture 272, sliding block 273, Angle Pin 274, slider guide
The fixture 276 of block 275 and second.Wherein, sliding block positioning seat 271 is fixed on moving platen 222 by the first fixture 272.
The side away from the first fixture 272 is formed with for carrying out spacing limiting section to sliding block 273 on sliding block positioning seat 271
271a.Include horizontal component (non-label) and sloping portion (non-label) referring to Fig. 8, limiting section 271a.Wherein, horizontal component
Parallel to the plane where plastic products 1, and extend to the side of sliding block positioning seat 271.Sloping portion and the horizontal part split-phase
Even, and with preset angle tilted relative to the direction that the horizontal component is directed away from the first fixture 272.Shown in Fig. 8
In embodiment, the angle between the sloping portion and horizontal component is between 120 °~135 °.Sliding block 273 is spacing in the limiting section
In 271a, and the contact surface (non-label) being in contact on sliding block 273 with sliding block positioning seat 271 is mutually fitted with limiting section 271a shapes
Match somebody with somebody.
Angle Pin 274 is located on sliding block positioning seat 271 and formed on limiting section 271a side, and partial denudation is in sliding block
Outside positioning seat 271.
Sliding block 273 is T-shaped, and is offered on sliding block 273 and the exposed portion in the outside of sliding block positioning seat 271 of Angle Pin 274
The inclined guide groove 273a that split-phase coordinates.Therefore, in mould matched moulds, the Angle Pin 274 through sliding block positioning seat 271 is further inserted
In inclined guide groove 273a, and the contact surface of sliding block 273 is resisted against on the limiting section 271a of sliding block positioning seat 271.
Two SLIDE GUIDEs 275 are oppositely arranged on the both sides of sliding block 273, and two SLIDE GUIDEs 275 are by respective
The second fixture 276 be separately fixed on solid plate 217.Sliding block 273 is spacing between two SLIDE GUIDEs 275, and edge
Plane between two SLIDE GUIDEs 275 is slidably.Preferably, first, second fixture is fixed screw or fixing bolt.
When direction (i.e. towards direction away from cover half component 21) of the dynamic model component 22 along die sinking is mobile, moving platen is driven
222 and the sliding block positioning seat 271 and Angle Pin 274 that are fixed on moving platen 222 moved along die sinking direction；Now, sliding block 273
The plane limited with detaching for Angle Pin 274 along the axial direction of Angle Pin 274 and two SLIDE GUIDEs 275 of fitting is carried out
It is mobile, so that sliding block 274 departs from the side opening of product.
Preferably, in a specific embodiment of the invention, when the present invention is used to manufacture carbon fibre composite notebook electricity
During brain shell, because product has more back-off or side opening structure, therefore the mould employs 29 Slanted ejecting components and 2 cunnings
Block assembly.
Briefly introduced below in conjunction with Fig. 1-8 and use the shaping of the injection mold of the present invention and prepare carbon fibre composite
The process of plastic products.
In matched moulds state, the carbon fibre composite of melting is injected from sprue bush 241, it is complete under specific technological parameter
Into injection, pressurize and cooling, so as to complete the forming process of plastic products.
In die opening state, dynamic model component 22 is directed away from the direction movement of cover half component 21 under the drive of injection machine,
And drive sliding part 232 to be moved to the end of deduction 231 along chute.Then, it is solid with deduction when dynamic model component 22 is continued to move to
Ejection bottom plate 214 that part 233 is fixedly connected is determined under the drive of deduction 231 as dynamic model component 22 is similarly directed away from cover half
The direction movement of component 22.Now, mobile ejection bottom plate 214 drives retaining plate 215 to move, and then drives oblique top to be oriented to
Block 262 is moved along the direction away from cover half component 21, and oblique top 261 is moved (i.e. along figure along the guide groove on inclined top guide block 262
Horizontal right direction movement in 6), so as to depart from the back-off structure of product.
At the same time, moving platen 222 and the sliding block positioning seat 271 and Angle Pin 274 that are fixed on moving platen 222 are along remote
Move in direction from cover half component 21.Now, sliding block 273 with detaching for Angle Pin 274 along the axial direction of Angle Pin 274 and patch
The plane that two SLIDE GUIDEs 275 of conjunction are limited is moved, so that sliding block 274 departs from the side opening of product.
Finally, carbon fibre composite plastic products are ejected by thimble 25, completes its injection molding process.
The mould and its forming process of carbon fibre composite notebook computer casing are only gived above.However,
It should be appreciated that above-mentioned mould can also be applied in the carbon fibre composite plastic products of manufacture other structures.
Moreover, can effectively reduce the bad modeling obtained to shaping of carbon fibre composite mobility itself using this kind of mould
The influence that the quality of material products is caused, improves the quality of produced plastic products, and improves its production efficiency.
Carbon fiber composite material article is entered in addition, the present invention is further directed to a kind of mould using the present invention
The forming method of row shaping, referring in particular to Fig. 9, it includes step：
S1, under preset temperature toast carbon fibre composite.Wherein baking temperature is 110-120 DEG C, preferably 115
℃；And baking time is 4-6 hours, preferably 5 hours.The step is mainly used in removing the moisture in carbon fibre composite.
S2, the mould provided with multiple glue inlet tubes is locked on injection machine with presetting clamp force.Wherein, preferably
Ground, clamp force is more than or equal to 400T.
S3, with presetting heating-up temperature mould is heated and is incubated.Wherein, heating-up temperature is preferably 110
DEG C -120 DEG C, soaking time is preferably 1-2h.The step is primarily to make the temperature of mould and the carbon after being handled by baking
The temperature of fibrous composite is approached, to avoid in injection moulding process, when the carbon fibre composite of molten condition injects low temperature
Mould molding chamber when, there are the phenomenons such as temperature distributing disproportionation so as to influenceing mobility and Forming Quality in carbon fibre composite.
S4, the technological parameter for adjusting injection machine, and the carbon fibre composite after step S1 processing is noted by injection machine
In the forming cavity for entering mould, the forming process of plastic products is completed by way of multiple glue inlet tubes use Multi-spot pouring.
Wherein it is preferred to, the mould is poured into a mould by the way of Multi-spot pouring.Wherein, injection pressure is preferably in 100Mpa-
Between 140Mpa.It is further preferable that injection, pressurize and cool down three phases injection pressure be adjusted to respectively 100Mpa,
120Mpa and 100Mpa.
S5, mould mold and eject carbon fibre composite plastic products.Wherein, step S5 further comprises：First
The motion of Slanted ejecting component and slide block assembly is driven by the die sinking of mould, so as to depart from the back-off and side opening knot of plastic products
Structure；Carbon fibre composite plastic products are then ejected by thimble.
In the mould and forming method of the carbon fibre composite plastic products of the present invention, by using many click-through
The mode poured carries out injection molding to carbon fibre composite to obtain plastic products, and to plastics by the way of twice-die-opening
Product is stripped, enabling the good carbon fibre composite plastic products of production mass；Further, since the mould
With the ejecting mechanism for including oblique top and sliding block so that can be successfully from the back-off and side opening of plastic products in knockout course
Etc. departing from structure, the production efficiency and Forming Quality of product are improved.Because the present invention is made using carbon fibre composite
It is molded for raw material, can effectively reduces the thickness of obtained plastic products, and mitigates its weight, and obtained modeling
Material products have good electromagnetic wave shielding, and higher intensity, are particularly suitable for use in manufacturing notebook computer casing, and can
Meet demand of the consumer to notebook computer casing.
Claims (8)
1. a kind of mould of carbon fibre composite plastic products, including cover half component, dynamic model component, running gate system and top
Go out mechanism, the shaping for being molded carbon fibre composite plastic products is formed between the cover half component and the dynamic model component
Chamber；Characterized in that,
The cover half component includes the fixed clamping plate and runner plate being linked in sequence,
The running gate system includes：
Sprue bush, the sprue bush is fixed on the fixed clamping plate；
Multiple main runners and multiple runners；Wherein the multiple main runner and the multiple runner are located at respectively
On the runner plate, and realized by digging out corresponding groove on runner plate；Each main runner is poured with described respectively
Muzzle is connected；The multiple runner is respectively communicated with one of them main runner；
Multiple cast gates being connected with the forming cavity；Wherein, each described runner has been respectively communicated with a cast gate, and institute
State sprue bush and be also communicated with a cast gate；
The cover half component also includes ejection bottom plate, retaining plate and the solid plate being linked in sequence；Wherein, the ejection bottom
Plate is connected with the runner plate；The cover half component also includes the water gap plate being connected with the runner plate, the ejection bottom
Plate is arranged on the water gap plate, and removable relative to the water gap plate when mould is molded；
The dynamic model component includes the moving platen and moving clamping plate being linked in sequence；Wherein described moving clamping plate and the cover half component
The distance between be more than the distance between the moving platen and described cover half component；
The running gate system also includes：
Deduction mechanism, the deduction mechanism includes deduction and sliding part；
The deduction side is fixed on the ejection bottom plate, and the opposite side of the deduction is fixed on moving clamping plate；And it is described
Chute is formed with deduction, the sliding part is through the chute and is fixed on the moving platen, and the sliding part is in institute
State in chute and may move.
2. the mould of carbon fibre composite plastic products according to claim 1, it is characterised in that the multiple
Main runner is distributed on the central crossbar of the runner plate, and the diagonal phase with carbon fibre composite plastic products respectively
It is mutually parallel.
3. the mould of carbon fibre composite plastic products according to claim 2, it is characterised in that the cast
System also includes multiple glue inlet tubes；The glue inlet tube prolongs perpendicular to the runner plate, and along towards the direction of the dynamic model component
Stretch；
Wherein, runner is respectively correspondingly fixedly connected with a glue inlet tube each time, and the sprue bush is also associated with one
Glue inlet tube；The multiple glue inlet tube is connected with the corresponding cast gate respectively.
4. the mould of carbon fibre composite plastic products according to claim 3, it is characterised in that the cast gate
For between spot pouring mouth, and a diameter of 0.5~1.5mm of the spot pouring mouth.
5. the mould of carbon fibre composite plastic products according to claim 4, it is characterised in that the cast
System also includes multiple support blocks；The multiple support block is separately fixed on the ejection bottom plate；In each support block
Wear and be fixed with least one described glue inlet tube.
6. the mould of carbon fibre composite plastic products according to claim 1, it is characterised in that the ejection
Mechanism includes at least one Slanted ejecting component；The Slanted ejecting component includes：Oblique top and inclined top guide block；
The inclined top guide block is fixed on the retaining plate；And be in contact on the inclined top guide block with the oblique top
Side is formed with guide groove；
The side of the oblique top is movably limited in the guide groove；The opposite side of the oblique top and the plastic products phase
Even.
7. the mould of carbon fibre composite plastic products according to claim 6, it is characterised in that the ejection
Mechanism includes at least one slide block assembly；Each slide block assembly includes sliding block positioning seat, sliding block, Angle Pin and two cunnings
Block guide pad；
The sliding block positioning seat is fixed on the moving platen；And be formed with the side of the sliding block positioning seat for described
The spacing limiting section of sliding block；The Angle Pin is located in the sliding block positioning seat and formed on the side of the limiting section, and part
It is exposed outside the sliding block positioning seat；
Be further opened with being engaged with the exposed part on the outside of the sliding block positioning seat of the Angle Pin on the sliding block tiltedly leads
Groove；In matched moulds, the Angle Pin through the sliding block positioning seat is inserted into the inclined guide groove of the sliding block, and the sliding block
Side and the limiting section of the sliding block positioning seat lean；
Two SLIDE GUIDEs are separately fixed on the solid plate, and are oppositely arranged on the sliding block both sides；Described two
The plane slided for the sliding block is also formed between individual SLIDE GUIDE.
8. a kind of carbon fibre composite plastic products of mould using as any one of claim 1-7 into
Type method, comprises the following steps：
S1, under preset temperature toast carbon fibre composite；
S2, the mould provided with multiple glue inlet tubes is locked on injection machine with presetting clamp force；
S3, with presetting heating-up temperature mould is heated and is incubated；
S4, the technological parameter for adjusting injection machine, and the carbon fibre composite after step S1 processing is injected into by injection machine
In the forming cavity of pattern tool, the forming process of plastic products is completed by way of multiple glue inlet tubes use Multi-spot pouring；
S5, mould mold and eject carbon fibre composite plastic products.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410132435.1A CN104972593B (en) | 2014-04-01 | 2014-04-01 | The mould and forming method of carbon fibre composite plastic products |
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|---|---|---|---|
| CN201410132435.1A CN104972593B (en) | 2014-04-01 | 2014-04-01 | The mould and forming method of carbon fibre composite plastic products |
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| CN104972593B true CN104972593B (en) | 2017-08-11 |
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| CN107379424A (en) * | 2016-05-17 | 2017-11-24 | 群达模具(深圳)有限公司 | A kind of mould and forming method of notebook face-piece |
Citations (4)
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|---|---|---|---|---|
| CN1426347A (en) * | 2000-02-24 | 2003-06-25 | 东丽株式会社 | FRP molded article and method of producing same |
| CN101837622A (en) * | 2009-03-20 | 2010-09-22 | 施耐德电器工业公司 | Injection moulding device and injection moulding method and prepared circular ring plastic product |
| CN202088402U (en) * | 2011-06-21 | 2011-12-28 | 三进光电（苏州）有限公司 | One-mould one-cavity hot runner injection mould |
| CN203254611U (en) * | 2013-04-01 | 2013-10-30 | 东莞康佳模具塑胶有限公司 | Highlight front housing injection mould for glass fiber |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002292678A (en) * | 2001-03-29 | 2002-10-09 | Calsonic Kansei Corp | Cylindrical resin part, and method and apparatus for molding the same |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1426347A (en) * | 2000-02-24 | 2003-06-25 | 东丽株式会社 | FRP molded article and method of producing same |
| CN101837622A (en) * | 2009-03-20 | 2010-09-22 | 施耐德电器工业公司 | Injection moulding device and injection moulding method and prepared circular ring plastic product |
| CN202088402U (en) * | 2011-06-21 | 2011-12-28 | 三进光电（苏州）有限公司 | One-mould one-cavity hot runner injection mould |
| CN203254611U (en) * | 2013-04-01 | 2013-10-30 | 东莞康佳模具塑胶有限公司 | Highlight front housing injection mould for glass fiber |
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