The precision die of duplicator depth chamber moulding
Technical field
A kind of precision die technical field for injection molding part, especially duplicator depth chamber is the utility model is related to note
The precision die of plastic.
Background technology
At present, duplicator gas extraction system shell is a kind of deep chamber moulding, and its feature is that area is big, height is high, wall thickness
The thin, position of bone is more etc., in injection moulding process, phenomena such as discontented filling, starved often occurs, and its appearance requirement is also higher.
Deep chamber moulding mould species in the prior art in the copy machine housings is various, for example, the public affairs disclosed in Chinese patent
Accuse in number Chinese utility model patent for being CN203510651U, disclose a kind of vacuum exhaust formula copy machine housings injection mould
Tool, including mould bases, mould bases are equipped with insert, insert air discharge duct are provided with insert, the edge of the insert air discharge duct along product muscle position
Arrangement, insert air discharge duct is consistent with product muscle position trend, and the several sections of muscle positions communicated with insert air discharge duct are provided between product muscle position
Air discharge duct, described mould bases are provided with exhaust passage, and the exhaust passage is connected with insert air discharge duct with muscle position air discharge duct.This reality
With the speed of new increase mould filling, finished product disqualification rate is reduced, shortens the production cycle of finished product, but do not solve
Certainly existing also existing die life is low, mould precision, formed product precision is low, uniform in shaping stability is poor, energy consumption
The actual techniques problem such as height, complex manufacturing, therefore, it investigated in view of above-mentioned existing technical problem utility model
A kind of precision die.
Utility model content
The purpose of this utility model is to improve using effect and longevity to solve one kind that is insufficient and designing of above-mentioned technology
The precision die of the duplicator depth chamber moulding of life.
The precision die of duplicator depth chamber moulding designed by the utility model, including preceding mould and rear mold, preceding mould is by upper
Include front shoe, hot runner manifold and front template successively under, rear mold from top to bottom includes rear pattern plate and rear fixed plate successively, preceding
The bottom surface of template and the top surface of rear pattern plate are respectively equipped with mutually corresponding fixing groove, before being embedded with the fixing groove of front template bottom surface
Die, the bottom surface of front cavity are fixed with the die insert for injection molding part depth chamber, are embedded in the fixing groove of rear mold plate top surface
There is the rear cavity matched with front cavity position correspondence, the top surface of rear cavity, which is provided with, is used for the multiple holes of injection molding part and multiple grooves
Forming blocks and the groove for the corresponding insertion of die insert, the bottom side of groove be equipped with for injection molding part circumferential groove
The core pieces in hole, and between front cavity and rear cavity between Corresponding matching and die insert and groove after Corresponding matching formed with
For the die cavity of injection molding part, die insert is inserted in die cavity;Cast gate part is embedded with front shoe, cast gate part passes through hot-fluid
Hot flow path in guidance tape connects with die cavity, and the outer circumferential side of die cavity, which is provided with, is used for the hole of injection molding part the week side of boss and/or taking out for groove
Core apparatus;The ejecting mechanism for ejected from rear cavity the moulding of shaping, and ejector are equipped with rear pattern plate
The top of structure is in rear cavity insertion die cavity.
Further preferably, core-pulling device includes take-up housing, core-pulling slide block, shovel base and Angle Pin, shovels base and Angle Pin difference
The bottom surface of front template is fixed on, the top surface of rear pattern plate is provided with sliding groove corresponding with shovel base, and take-up housing slidingtype is embedded in slip
In groove;Core-pulling slide block is inserted in die cavity after running through between front cavity and rear cavity;Take-up housing is connected with each other solid with core-pulling slide block
It is fixed;There is pilot hole in angularly disposed on take-up housing;The inner bottom surface of sliding groove, which is provided with, is available for what Angle Pin inserted after pilot hole
Locating slot.
Further preferably, the hot flow path concrete structure in hot runner manifold is:Hot runner plate is embedded with hot runner manifold,
The runner in runner and hot runner plate on cast gate part is interconnected, and multiple needle-valve type hots are equipped with hot runner plate
Runner, each needle valve type hot runner are interconnected with the runner in hot runner plate and die cavity respectively, and each needle valve type hot runner
It is provided with heating module.
Further preferably, in addition to section is fixed in the projection that the concave block of character cut in bas-relief shape and section are in type shape, concave block
In the bottom surface of front template, projection is fixed on the top surface of rear pattern plate, and the depressed part progress of the lug boss insertion concave block of projection is spacing.
Further preferably, ejecting mechanism includes some ejector retainner plate, more straight push rods, angle ejector rod, inclined top guide block, oblique top bottom
Seat and tilted footstock fixed block, rear fixed plate internally form cavity after being fixed by support block and rear pattern plate, and ejector retainner plate is located at cavity
Interior, tilted footstock fixed block is fixed on ejector retainner plate, and oblique top base is fixed on tilted footstock fixed block, and the bottom of angle ejector rod is fixed on
On oblique top base, angle ejector rod top can be ejected after sequentially passing through inclined top guide block, rear pattern plate and rear cavity, the top of straight push rod
End can be ejected after running through rear cavity, and the top of straight push rod is provided with jacking block.
Further preferably, cooling duct is respectively equipped with front template, front cavity, rear pattern plate, rear cavity and die insert, and
The cooling duct of front template connects with the cooling duct of front cavity, and the cooling duct of rear pattern plate and the cooling duct of rear cavity connect
Logical, the cooling duct of front cavity connects with the cooling duct of die insert;Inserted with spiral waterproof piece in each cooling duct.
Further preferably, front cavity is embedded in the fixing groove of front template by the preceding mould wedge block of trapezoidal shape, rear mold
Benevolence is embedded in the fixing groove of rear pattern plate by the rear mold wedge block of trapezoidal shape.
Further preferably, the forming method of copy depth chamber moulding, it uses the accurate mould of duplicator depth chamber moulding
The specific forming step of tool is as follows:
A, material prepares:Take raw materials for plastics production of the model PC+PET KCA9371NH as injection molding part;
B, melt:PC+PET KCA9371NH raw materials for plastics production are put into thermofusion device and is heated to 245 DEG C -260 DEG C and enters
Hot melt is formed after row melting, and hot melt enters injection canal;
C, plastify:Thermosol material in injection canal is kept molten by, the temperature being kept molten by is: 245℃-
260℃;
D, matched moulds:Driving front template is bonded with rear pattern plate, and core-pulling slide block enters line slip under the guiding of Angle Pin and shovel base
And realize and run through between front cavity and rear cavity in rear insertion die cavity, and front cavity and rear cavity Corresponding matching, die insert are inserted
Enter in groove, so as to die cavity of the formation for core pulling injection molding part;
E, material feeding:The raw materials for plastics production pressure injection of molten condition is entered to the runner of hot runner plate through cast gate part
It is interior, and the hot melt in the runner of hot runner plate enters in needle valve type hot runner, the hot melt in needle valve type hot runner leads to
Cross heating module and carry out heating and be kept molten by, and then hot melt enters injection molding part in die cavity, applies the pressure of injection
For:90Mpa, the amount of injection are:50 millimeters, molding time is:60 seconds, heating module heating temperature be:245℃-260℃;
F, cool down:The temperature cooling that coolant carries out moulding is injected in cooling duct, is occurred slightly in each cooling duct
It is unimpeded by spiral waterproof piece cooling water when having dislocation, temperature is cooled to 20 DEG C -30 DEG C, the time of cooling is:25 seconds;
G, mold:Front template is driven to open mould, core-pulling slide block realizes the Slideslip to outside mould under the guiding of Angle Pin,
The angle ejector rod of ejecting mechanism and straight push rod eject Injection Molding Products in the presence of ejector retainner plate pushes up upwards, so as to realize that moulding produces
Product are stripped with mould.
The precision die of duplicator depth chamber moulding designed by the utility model, its mould structure realize ultrathin, muscle
The perfect shaping of electromobile battery plastic housing more than position, it is reasonable in design, parting is simple, it is easily controlled by mould and die accuracy, mould
Tool precision can reach 0.01mm, and service life is 2-3 times of universal mold, and formed product is stable, mould precision is high, shaping
For the speed in cycle than 4-5 times of lifting, product precision can reach 0.02mm, be 2 times or so of the production efficiency of universal mold,
The processability of plastic is greatly improved in addition, it is thus also avoided that the risk of plastic bubble is produced, the probability of shaping finished product is higher,
Abrasion of the melt to mould is small.
Brief description of the drawings
Fig. 1 is the overall structure diagram (one) of embodiment 1;
Fig. 2 is the overall structure diagram (two) of embodiment 1;
Fig. 3 is the overall structure diagram (three) of embodiment 1;
Fig. 4 is the overall structure diagram (four) of embodiment 1;
Fig. 5 is the modular construction schematic diagram of embodiment 1.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, every other embodiment that those of ordinary skill in the art are obtained all belongs to
In the scope of the utility model protection.
Embodiment 1:
As Figure 1-Figure 5, the precision die of the duplicator depth chamber moulding described by the present embodiment, including preceding mould is with after
Mould, preceding mould from top to bottom include front shoe 1, hot runner manifold 2 and front template 3 successively, and rear mold from top to bottom includes rear mold successively
Plate 4 and rear fixed plate 5, the bottom surface of front template 3 and the top surface of rear pattern plate 4 are respectively equipped with mutually corresponding fixing groove 14, front template 3
Front cavity 6 is embedded with the fixing groove 14 of bottom surface, the bottom surface of front cavity 6 is fixed with the die insert for injection molding part depth chamber
61, the rear cavity 7 matched with the position correspondence of front cavity 6, the top surface of rear cavity 7 are embedded with the fixing groove 14 of the top surface of rear pattern plate 4
Groove provided with the forming blocks 72 for the multiple holes of injection molding part and multiple grooves and for the corresponding insertion of die insert 61
71, the bottom side of groove 71 is equipped with the core pieces 73 for injection molding part periphery slotted eye, and front cavity 6 and rear cavity 7 it
Between between Corresponding matching and die insert and groove after Corresponding matching formed with the die cavity for injection molding part, die insert
In 61 insertion die cavitys;Cast gate part 11 is embedded with front shoe 1, cast gate part 11 passes through the hot flow path and die cavity in hot runner manifold 2
Connection, the outer circumferential side of die cavity are provided with the hole for injection molding part the week side of boss and/or the core-pulling device 8 of groove;Worn on rear pattern plate 4
There is the ejecting mechanism 9 for ejected from rear cavity 7 moulding of shaping, and rear mold is run through on the top of ejecting mechanism 9
Benevolence 7 is inserted in die cavity.Its structure to mold more convenient reliable, and mould filling is good, accurate size, high yield rate.This is specially
Profit is applied to the mold insert structure of various super-thin plastic shell product injection moulds.
In the present embodiment, core-pulling device 9 includes take-up housing 83, core-pulling slide block 85, shovel base 81 and Angle Pin 84, shovels base 81
The bottom surface of front template 3 is individually fixed in Angle Pin 84, the top surface of rear pattern plate 4 is provided with sliding groove 82 corresponding with shovel base 81, sliding
The slidingtype of block 83 is embedded in sliding groove 82;Core-pulling slide block 85 is inserted in die cavity after running through between front cavity 6 and rear cavity 7
It is interior;Take-up housing 83 is interconnected and fixed with core-pulling slide block 85;There is pilot hole 831 in angularly disposed on take-up housing 83;Sliding groove 82
Inner bottom surface be provided with and be available for Angle Pin 84 to run through the locating slot 86 that inserts after pilot hole 831.Its structure is more to ultrathin type, muscle position
Electromobile battery plastic housing the week side of boss straight hole, the straight groove that need to be molded carry out perfect shaping, and the formed precision of product reaches
0.02mm.Shovel base make it that core-pulling slide block accurate positioning is reliable after having matched moulds, lifts using effect and practical performance.Angle Pin with
Front template is interference fitted.
In the present embodiment, the hot flow path concrete structure in hot runner manifold 2 is:Hot flow path is embedded with hot runner manifold 2 to fix
Plate 10, the runner on cast gate part 11 are interconnected with the runner in hot runner plate 10, are equipped with hot runner plate 10
Multiple needle valve type hot runners 12, each needle valve type hot runner 12 mutually interconnect with the runner in hot runner plate 10 and die cavity respectively
It is logical, and each needle valve type hot runner 12 is provided with heating module.Its structure uses multiple needle valve type hot runners 12, after having reached shaping
Duplicator gas extraction system shell on noresidue cast gate effect, and material feeding is more uniform in die cavity, so that shaping
The uniform and stable property of duplicator gas extraction system shell product is preferable.
In the present embodiment, in addition to section is in the projection 15 that the concave block 16 of character cut in bas-relief shape and section are in type shape, concave block
16 are fixed on the bottom surface of front template 3, and projection 15 is fixed on the top surface of rear pattern plate 4, and the lug boss of projection 15 inserts concave block 16
Depressed part carries out spacing.Its structure causes after matched moulds, and predetermined position is fitted between front template and rear pattern plate, and with fixed
The effect of position, so as to reach front cavity 6, rear cavity 7, die insert 61, groove 71, core pieces 73, forming blocks 72, core-pulling slide block
85 be fitted close in precalculated position to be formed for more than forming superthin type, muscle position and the duplicator gas extraction system shell of deep chamber mould
Chamber, so as to reach more than ultrathin, muscle position and the duplicator gas extraction system shell product precision of deep chamber is in the range of 0.02mm, lifting
The quality of product.
In the present embodiment, ejecting mechanism 9 includes that ejector retainner plate 95, more straight push rods 97, angle ejector rod 92 be some, inclined top guide block
91st, oblique top base 94 and tilted footstock fixed block 93, rear fixed plate 5 internally form empty after being fixed by support block 96 and rear pattern plate 4
Chamber, ejector retainner plate 95 is in cavity, and tilted footstock fixed block 93 is fixed on ejector retainner plate 95, and oblique top base 94, which is fixed on tilted footstock, to be consolidated
Determine on block 93, the bottom of angle ejector rod 92 is fixed on oblique top base 94, the top of angle ejector rod 92 sequentially pass through inclined top guide block 91, after
It can be ejected after template 4 and rear cavity 7, the top of straight push rod 97 can be ejected after rear cavity 7, straight push rod 97
Top is provided with jacking block 921.After formed product die sinking, ejector retainner plate drives angle ejector rod and straight push rod backward in the case where being promoted
Die direction is ejected, and so as to reach be molded ultrathin type, the duplicator gas extraction system shell product more than muscle position is perfectly pushed away
Go out.
In the present embodiment, cooling is respectively equipped with front template 3, front cavity 6, rear pattern plate 4, rear cavity 7 and die insert 61
Passage, and the cooling duct of front template 3 connects with the cooling duct of front cavity 6, cooling duct and the rear cavity 7 of rear pattern plate 4
Cooling duct connects, and the cooling duct of front cavity 6 connects with the cooling duct of die insert 61;Inserted with spiral shell in each cooling duct
Revolve water-impermeable piece.Because spiral waterproof piece employs partition type, so that assembly operation is simple, when upper and lower Cooling Holes slightly misplace
Cooling water can be made unimpeded.Spiral waterproof piece because it can make cooling water rotational flow to increase contact of the cooling water with die,
Thus the cooling effectiveness than conventional water-impermeable piece is higher by 4-5 times;Because spiral waterproof piece is plasticity manufacture, so will not cause because getting rusty
Cool down hole plug.
The operation principle of above-mentioned mould structure:Mould is fixed on injection machine, and injection machine is divided into fixed part and movable part
Point, mould in matched moulds state before mould be fixed on injection machine fixed part, rear mold is fixed on the movable part of injection machine, product note
Being moulded into the process after type is:Front template 3 is opened with rear pattern plate 4, forces take-up housing 81 to slide outward in the presence of Angle Pin 84
So as to deviate from back-off on the outside of product, the push rod of injection machine promotes ejector retainner plate 95 upwards by the hole on bottom plate and active type core type is oblique
Push rod also and then moves, and ejecting mechanism 9 can eject product, and injection machine is the thrust by screw rod.During matched moulds, ejector retainner plate 95
First return, mould matched moulds again, during matched moulds, push rod is first in contact with swing rod, can force 95 complete return of ejector retainner plate.Every
In secondary process of producing product, water route is connected, it is ensured that produce qualified products.
In the present embodiment, front cavity 6 is embedded at the fixing groove 14 of front template 3 by the preceding mould wedge block 13 of trapezoidal shape
Interior, rear cavity 7 is embedded in the fixing groove 14 of rear pattern plate 4 by the rear mold wedge block 13 of trapezoidal shape.Its structure causes preceding mould
The fixation of Renhe rear cavity is more solid and reliable.
The forming method of copy depth chamber moulding in the present embodiment, it uses the accurate mould of duplicator depth chamber moulding
The specific forming step of tool is as follows:
A, material prepares:Take raw materials for plastics production of the model PC+PET KCA9371NH as injection molding part;
B, melt:PC+PET KCA9371NH raw materials for plastics production are put into thermofusion device and is heated to 245 DEG C -260 DEG C and enters
Hot melt is formed after row melting, and hot melt enters injection canal;
C, plastify:Thermosol material in injection canal is kept molten by, the temperature being kept molten by is: 245℃-
260℃;
D, matched moulds:Driving front template 3 is bonded with rear pattern plate 4, and core-pulling slide block 85 is under the guiding of Angle Pin 84 and shovel base 81
Enter line slip and realize between front cavity 6 and rear cavity 7 in rear insertion die cavity, and corresponding with rear cavity 7 of front cavity 6
Match somebody with somebody, die insert 61 is inserted in groove 71, so as to die cavity of the formation for core pulling injection molding part;Its mode causes injection to fill out
Fill good, accurate size, high yield rate.This patent is applied to the mold insert structure of various super-thin plastic shell product injection moulds.
E, material feeding:The raw materials for plastics production pressure injection of molten condition is entered to the stream of hot runner plate 10 through cast gate part 11
In road, and the hot melt in the runner of hot runner plate 10 enters in needle valve type hot runner 12, in needle valve type hot runner 12
Hot melt carries out heating by heating module and is kept molten by, and then hot melt enters injection molding part in die cavity, applies note
The pressure penetrated is:90Mpa, the amount of injection are:50 millimeters, molding time is:60 seconds, heating module heating temperature be:245
℃-260℃;Its mode make it that injection hot melt is more uniform, prevents the generation of bubble, and injection volume is preferably controlled
System, and the molding effect of product is more preferably.
F, cool down:The temperature cooling that coolant carries out moulding is injected in cooling duct, is occurred slightly in each cooling duct
It is unimpeded by spiral waterproof piece cooling water when having dislocation, temperature is cooled to 20 DEG C -30 DEG C, the time of cooling is:25 seconds;
So that the product solidifiability after being cooled and shaped is preferable, it is easier to be stripped.
G, mold:Front template 3 is driven to open mould, core-pulling slide block 85 is realized on the outside of mould under the guiding of Angle Pin 84
Sliding, the angle ejector rod 91 and straight push rod 97 of ejecting mechanism 9 eject Injection Molding Products in the presence of ejector retainner plate 95 upwards top, so as to
Realize that Injection Molding Products are stripped with mould.Its mode improves product and carries out automatic demoulding, lifts the efficiency of the demoulding, and certainly
Dynamicization intelligence degree is higher.
The utility model is not limited to above-mentioned preferred forms, and anyone can draw under enlightenment of the present utility model
Other various forms of products, however, make any change in its shape or structure, it is every that there is same as the present application or phase
Approximate technical scheme, all falls within the scope of protection of the utility model.