A kind of injection mold of automatic shaping
The present invention relates to injection mold technologies, are a kind of injection moulds of automatic shaping specifically.
Injection molding be high-temperature fusion plastics are expressed to a kind of molding method in die cavity, but because mold filling
Speed is slower, and dynamic model, the temperature of cover half are inconsistent, and product is not fully hardened the reasons such as to be pushed out, and is inevitably forming
Part internal residual partial interior stress, so as to cause metabolies such as product warpage, bending and distortions, this is that plastic products are most normal
One of defect seen, for bool, this deformation is more universal, and enterprise is during injection molding, a side
Face, to reduce deflection, on the other hand takes some supplementary means to reduce product deformation by adjusting molding proces s parameters, such as single
Solely product is cooled down, needs to be equipped with cooling room, at high cost, inefficiency；According to article shape, the setting work of auxiliary is made
The product just ejected out of die cavity is put into tooling setting pressure maintaining for a period of time etc. by dress, and this method needs outsourcing customization a large amount of
Setting tooling, it is also efficiency bottom, at high cost individually to each product pressure maintaining.
Therefore, can be in the case where not improving cost, the efficient deflection for reducing product, is significantly.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of modified injection mould of automatic shaping for bool, from
And during bend plastics product injection molding, it realizes the shaping to product, improves quality of item.
In order to achieve the above objectives, the technical solution adopted by the present invention are as follows: a kind of injection mold of automatic shaping, including mold
Ontology, the die ontology are equipped with injection molding portion and correction unit, and the correction unit is realized by hydraulic control system to the whole of product
Shape；The die ontology successively includes fixed pedestal, movable plate, push plate and cavity plate, is led between the movable plate and cavity plate
Support column flexible connection is crossed, is set in the cavity plate there are two type chamber symmetrical above and below, any one described type chamber passes through liftout
Bar is connected with push plate；The injection molding portion includes core plate, solid plate, sprue bush, sprue bush fixed plate and running channel, one of them
The type chamber is matched with the type core of core plate, is connected between the core plate and solid plate by pull rod, is set on the pull rod
There is pull-rod spring, and one end of pull rod is fixed in solid plate, the other end is equipped with step, and the correction unit includes correction body and liquid
Further, the running channel includes the sprue being located in sprue bush and the multiple shuntings being connected with sprue
The cast gate in road, the runner is connected to type chamber.
Further, the sprue bush is fixed by screws in sprue bush fixed plate, and the solid plate is fixed in cast gate
It covers in fixed plate.
Further, the correction body side is arc and cooperates with type chamber described in another, and the other side for correcting body is logical
The output rod for crossing hydraulic cylinder is connected with hydraulic cylinder.
Further, the movable plate is equipped with the push-rod hole of distribution symmetrical above and below, and the push-rod hole is opposite with push plate.
Further, the rotary shaft through fixed pedestal is equipped in the middle part of the movable plate.
Further, it is equipped with push rod with the ipsilateral fixed pedestal of correction unit, the push rod can be pushed away by push-rod hole
Further, guide pillars and bushes is equipped in the injection molding portion and correction unit.
Further, the hydraulic control system includes pressure dwelling loop, and the pressure dwelling loop includes sequentially connected oil suction
Filter, hydraulic pump, check valve, reversal valve, hydraulic control one-way valve and electric contact type pressure gauge, the hydraulic control one-way valve with it is hydraulic
Cylinder simultaneously connects, and the side of the hydraulic pump is simultaneously connected to overflow valve.
The beneficial effects of the present invention are: the present invention is different from traditional injection moulding mould, but by being arranged on die ontology
Correction unit realizes the shaping to bool product, further realizes marginal not modeling, and side shaping extends the dwell time of product, not only
Production efficiency is improved, a possibility that buckling deformation occurs for product is more reduced.
Detailed description of the invention
Attached drawing is to further understand for providing to invention, and constitute part of specification, with following specific realities
It applies mode to be used to explain the present invention together, but is not construed as limiting the invention, in the accompanying drawings:
Fig. 1 is molding status diagram of the invention；
Fig. 2 is die opening state schematic diagram of the invention；
Fig. 3 this present invention hydraulic control system schematic diagram；
Injection mould appended drawing reference: fixed base 1；Push rod 10；Rotary shaft 11；Movable plate 2；Support column 20；Cavity plate 3；Type
Chamber 30；Ejector beam 31；Push plate 32；Core plate 4；Type core 40；Solid plate 5；Pull rod 6；Pull-rod spring 60；Correct body 7；Hydraulic cylinder
70；Sprue bush fixed plate 8；Sprue bush 80；Sprue 81；Runner 82；Guide post 9；Guide sleeve 90；
Hydraulic control system appended drawing reference: fuel tank 1a；Oil absorption filter 1b；Overflow valve 1c；Hydraulic pump 1d；Check valve 1e；
Reversal valve 1f；Hydraulic control one-way valve 1g；Electric contact type pressure gauge 1h.
Structure and working principle of the invention are further described in detail below in conjunction with the drawings and specific embodiments,
In this specification, the noun of locality used such as "upper" "lower" " left side " " right side " is consistent with the direction of attached drawing 1.
As shown in Figure 1, being a kind of structural schematic diagram of the injection mold of automatic shaping provided by the invention, this injection mould is used
In the production and shaping of bool injection-molded item, referring to attached drawing, the design mainly includes die ontology, is set on the die ontology
There are injection molding portion and correction unit, the injection molding portion realizes the molding to bool product, and the correction unit passes through hydraulic control system
System realize to molding bool product shaping, wherein die ontology from left to right successively include fixed base 1, movable plate 2,
Push plate 32 and cavity plate 3, the movable plate 2 are connect by the support column 20 at its both ends with cavity plate 3, the cavity plate 3
Upper and lower two sides are equipped with symmetrical type chamber 30,30 camber of type chamber, and the type chamber 30 described in any one passes through ejector beam
31 are connected with push plate 32, and the quantity of ejector beam 31 can be according to the setting of the size reasonable of bool product, in the design, up and down
31 quantity of ejector beam of two sides is two, and the upper and lower ends of the movable plate 2 are equipped with symmetrical push-rod hole, push-rod hole with
Push plate 32 is opposite；The injection molding portion includes core plate 4, solid plate 5, sprue bush 80, sprue bush fixed plate 8 and running channel, described
The type core 40 of core plate is matched with lower end type chamber 30, and the core plate 4 is connected with solid plate 5 by pull rod 6, the pull rod 6
One end be fixed in solid plate 5, the other end is equipped with step, and the pull rod 6 is equipped with pull-rod spring 60, under molding state, draws
Bar spring 60 is in compressive state, is convenient for parting, and the solid plate 5 is fixed in sprue bush fixed plate 8, and the sprue bush 80 is logical
Screw is crossed to be fixed in sprue bush fixed plate 8, the running channel include sprue 81 in the sprue bush and with sprue phase
Several runners 82 of connection, the cast gate of the runner 82 are communicated with type chamber 30, to realize the note to bool product
It is moulded into type, the quantity of runner can be selected according to the size of bool product, and there are three the runners in the design, injection molding portion
It is the first die joint between core plate 4 and solid plate 5, is the second die joint between core plate 4 and cavity plate 3；The correction unit
Including correction body 7 and hydraulic cylinder 70, the side of the correction body 7 is matched in raised arc shape with the type chamber 30 of upper end,
The other side is connected with the output rod of hydraulic cylinder, so that the reciprocating motion of correction body is realized by hydraulic control system, it is whole to product
Shape；It is connected with the rotary shaft 11 through fixed base 1 in the middle part of above-mentioned movable plate 2, is set in the fixed base 1 ipsilateral with correction unit
There is the push rod 10 that can be moved in push-rod hole, the push rod 10 can push push plate 32 to eject bool product, the rotary shaft
11 can drive movable plate 2, support column 20 and cavity plate 3 mobile and rotation, are equipped with and play the guiding role in injection molding portion and correction unit
Guide post 9 and guide sleeve 90.
As shown in figure 3, the hydraulic control system includes pressure dwelling loop, wherein pressure dwelling loop includes sequentially connected
Oil absorption filter 1b, hydraulic pump 1d, check valve 1e, reversal valve 1f, hydraulic control one-way valve 1g and electric contact type pressure gauge 1h, it is described
The two sides hydraulic control one-way valve 1g respectively with the rod chamber of hydraulic cylinder 70 and rodless cavity and connect, the side of the hydraulic pump is simultaneously connected to overflow
Valve 1c, oil liquid is through overflow valve oil return box 1a.
The design can realize injection molding and shaping while carry out, and be now described below:
Fig. 1 show mold clamping state, and under the action of injector helical screw agitator, high-temperature fusion plastics are by injection molding portion
Sprue 81 enters, then through runner 82 by runner cast gate injection type chamber 30, into the molten plastic in type chamber 30 through one section
The pressure maintaining curing molding of time；As shown in Fig. 2, under the action of pull-rod spring 60, the first die joint is opened, type core when die sinking
Plate 4 and cavity plate 3 move to left, and when moving to left to the step of 6 left end of pull rod, the stopping of being obstructed of core plate 4 is moved to left, and cavity plate 3 continues
It moves to left, the second die joint is opened, at this point, can be taken off the plastics in running channel, is convenient for injection molding next time；It is curved after parting
Bent part product remains in type chamber 30, and rotary shaft 11 rotates 180 ° at this time, and type intracavitary product in lower end is transferred to upper end, then moves
Movable plate 2 moves to right, driven mold molding.
After molding, correction body 7 is controlled by hydraulic control system and is moved to left to upper end type chamber 30, bool product is compressed and carries out
Correction, this process are achieved in that the right position reversal valve 1f must conduct, and oil liquid drives hydraulic cylinder to export through hydraulic control one-way valve 1g
Bar moves to left, and when oil liquid pressure rises to the set pressure of electric contact type pressure gauge 1h, position must be conducted in reversal valve 1f, hydraulic
1d off-load is pumped, hydraulic cylinder pressure maintaining, when pressure drops to the pressure of electric contact type pressure gauge 1h setting, the left position reversal valve 1f obtains electric
Conducting, hydraulic pump 1d to hydraulic oil supply cylinder, go up by pressure, and hydraulic cylinder output rod moves to right, thus realize correction body 7 move to left, pressure maintaining,
The working cycles moved to right.
While the product of the upper end is corrected the correction pressure maintaining of body 7, under the type chamber 30 of lower end continues with the cooperation of injection molding portion
The injection molding of one bool product, molding rear mold die sinking, upper end passes through fixed base 1 through the bool product of overcorrection
On push rod 10 push push plate 32, then ejected by ejector beam 31, become finalization product, and the product of lower end injection molding
Continue to drive rotation to be corrected by rotary shaft 11, be recycled with this, in the above process, time and the correction of product curing molding
Dwell time is identical, with guarantee molding and shaping can synchronous progress, in fact, can regard the shaping of bool to being solidified into as
The extension of type time realizes marginal not modeling, side correction, on the one hand improves production efficiency, another party by using the measure of correction unit
Face lengthening curing time improves the Forming Quality of product to further decrease the deflection of bool product.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.