CN206201351U - A kind of injection mold of automatic shaping - Google Patents

Abstract

The utility model discloses a kind of injection mold of automatic shaping, including die ontology, and the die ontology is provided with injection portion and correction unit, and the correction unit is realized the shaping to product by hydraulic control system；The die ontology includes fixed pedestal, movable plate, push pedal and cavity plate successively, the injection portion includes core plate, solid plate, sprue bush, sprue bush fixed plate and running channel, one of them described die cavity is engaged with the core of core plate, it is connected by pull bar between the core plate and solid plate, the pull bar is provided with pull-rod spring, and the correction unit includes correction body and hydraulic cylinder；The utility model can realize marginal not modeling, side shaping, improve the production efficiency of moulding, reduce product buckling deformation.

Description

A kind of injection mold of automatic shaping

Technical field

The utility model is related to injection mold technical field, is a kind of injection mould of automatic shaping specifically.

Background technology

Injection moulding is that high-temperature fusion plastics are expressed to a kind of method being molded in die cavity, but because the filling of mould Speed is slower, dynamic model, cover half temperature it is inconsistent, product is not fully hardened the reason such as to be pushed out, inevitably in shaping Part internal residual partial interior stress, so as to cause the metabolies such as product warpage, bending and distortion, this is most normal plastic products One of defect seen, particularly with bool for, it is this deformation it is more universal, enterprise during injection moulding, a side Deflection is reduced in face by adjusting molding proces s parameters, on the other hand takes some supplementary means to reduce product deformation, such as single Solely product is cooled down, it is necessary to be equipped with cooling room, high cost, inefficiency；According to article shape, the setting work of auxiliary is made Dress, frock setting pressurize is put into for a period of time etc. by the product for just being ejected from die cavity, and it is a large amount of that this method needs outsourcing to customize Setting frock, will also individually to each product pressurize, efficiency bottom, high cost.

Therefore, it is possible in the case where cost is not improved, the efficient deflection for reducing product, is significantly.

Utility model content

The technical problems to be solved in the utility model is to provide a kind of modified injection of automatic shaping for bool Mould, so as to during bend plastics product injection moulding, realize the shaping to product, improves quality of item.

To reach above-mentioned purpose, the technical solution adopted in the utility model is：A kind of injection mold of automatic shaping, including Fixed pedestal, movable plate, die cavity, push pedal, cavity plate, core plate, solid plate, pull bar, correction body, hydraulic cylinder, sprue bush are fixed Plate, sprue bush, sprue, runner, guide pillars and bushes, the fixed pedestal right side are provided with movable plate, and movable plate and type Connected by support column between cavity plate, the cavity plate is provided with two die cavities symmetrical above and below, any one described die cavity leads to Ejector beam is crossed to be connected with push pedal；One of them described die cavity is engaged with the core of core plate, the core plate and solid plate it Between be connected by pull bar, the correction body side is arc and coordinates with die cavity another described, the opposite side and liquid of correction body Cylinder pressure is connected, and running channel is provided with the sprue bush fixed plate, and running channel includes sprue and and main flow in sprue bush Multiple runners that road is connected, the cast gate of the runner is connected with die cavity, and the correction body and cavity plate are connected by guide pillar Connect, and guide pin bushing is provided with cavity plate, and correction body is by hydraulic control system control.

Preferably, the movable plate is provided with the push-rod hole of distribution symmetrical above and below, and the push-rod hole is relative with push pedal.

Preferably, the movable plate middle part is provided with the rotary shaft through fixed pedestal.

Preferably, push rod is provided with the fixed pedestal of correction unit homonymy, the push rod can promote push pedal by push-rod hole.

Preferably, it is cased with pull-rod spring on the pull bar.

Further, the hydraulic control system includes pressure dwelling loop, and the pressure dwelling loop includes the oil suction being sequentially connected Filter, hydraulic pump, check valve, reversal valve, hydraulic control one-way valve and electric contact type pressure gauge, the hydraulic control one-way valve and hydraulic pressure Cylinder simultaneously connects, and the side of the hydraulic pump is simultaneously connected to overflow valve.

The beneficial effects of the utility model are：The utility model is different from traditional injection moulding mould, but by mould sheet Correction unit is set on body, the shaping to bool product is realized, further realizes that marginal not is moulded, side shaping extends the pressurize of product Time, not only improve production efficiency, more reduces the possibility that product occurs buckling deformation.

Brief description of the drawings

Accompanying drawing is utility model to be further understood for providing, and constitutes a part for specification, with following tools Body implementation method is used to explain the utility model together, but does not constitute to limitation of the present utility model, in the accompanying drawings：

Fig. 1 is matched moulds view of the present utility model；

Fig. 2 is die opening state schematic diagram of the present utility model；

Fig. 3 this utility model hydraulic control system schematic diagrams；

Injection mould 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 pedal 32；Core plate 4；Core 40；Solid plate 5；Pull bar 6；Pull-rod spring 60；Correction body 7；Hydraulic cylinder 70；Sprue bush fixed plate 8；Sprue bush 80；Sprue 81；Runner 82；Guide pillar 9；Guide pin bushing 90；

Hydraulic control system 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.

Further details of is done to structure of the present utility model and operation principle below in conjunction with the drawings and specific embodiments Illustrate, in this specification, the noun of locality for using as " on " D score " left side " " right side ", the direction with accompanying drawing 1 is consistent.

Specific embodiment

As Figure 1-3, a kind of structural representation of the injection mold of the automatic shaping for being provided for the utility model, this note Mold is used for the production and shaping of bool injection-molded item, and referring to accompanying drawing, the design mainly includes die ontology, the mould Body is provided with injection portion and correction unit, and described injection portion realizes the shaping to bool product, and the correction unit passes through liquid Pressure control system realize to be molded bool product shaping, wherein, die ontology from left to right successively include fixed base 1, Movable plate 2, push pedal 32 and cavity plate 3, the movable plate 2 are connected by the support column 20 at its two ends with cavity plate 3, the type The both sides up and down of cavity plate 3 are provided with symmetrical die cavity 30, and the camber of the die cavity 30, the die cavity 30 described in any one passes through Ejector beam 31 is connected with push pedal 32, and the quantity of ejector beam 31 can be according to the setting of the size reasonable of bool product, such as the design In, the quantity of ejector beam 31 of upper and lower both sides is two, and the upper and lower ends of the movable plate 2 are provided with symmetrical push-rod hole, Push-rod hole is relative with push pedal 32；The injection portion includes core plate 4, solid plate 5, sprue bush 80, sprue bush fixed plate 8 and pours Road, the core 40 of the core plate is engaged with lower end die cavity 30, and the core plate 4 is connected with solid plate 5 by pull bar 6, institute The one end for stating pull bar 6 is fixed in solid plate 5, and the other end is provided with step, and the pull bar 6 is provided with pull-rod spring 60, matched moulds shape Under state, pull-rod spring 60 is in compressive state, is easy to parting, and the solid plate 5 is fixed in sprue bush fixed plate 8, described to pour Muzzle 80 is fixed by screws in sprue bush fixed plate 8, the running channel include sprue 81 in the sprue bush and with Several runners 82 that sprue is connected, the cast gate of the runner 82 is communicated with die cavity 30, so as to realize to bool The injection moulding of product, the quantity of runner can be selected according to the size of bool product, and the runner in the design has three, It is the first die joint between the core plate 4 and solid plate 5 in injection portion, is the second die joint between core plate 4 and cavity plate 3；Institute Stating correction unit includes correction body 7 and hydraulic cylinder 70, the side of the correction body 7 in raised arc shape, and with the die cavity of upper end 30 are engaged, and opposite side is connected with the take-off lever of hydraulic cylinder, so that the reciprocating motion of correction body is realized by hydraulic control system, To product shaping；The above-mentioned middle part of movable plate 2 is connected with the rotary shaft 11 through fixed base 1, the fixation with correction unit homonymy Support 1 is provided with the push rod 10 that can be moved in push-rod hole, and the push rod 10 can promote push pedal 32 to eject bool product, institute Stating rotary shaft 11 can drive movable plate 2, support column 20 and cavity plate 3 to move and rotate, and be equipped with injection portion and correction unit The guide pillar 9 and guide pin bushing 90 of guide effect.

As shown in figure 3, described hydraulic control system includes pressure dwelling loop, wherein, pressure dwelling loop includes what is be 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 Hydraulic control one-way valve 1g both sides respectively with the rod chamber and rodless cavity of hydraulic cylinder 70 and connect, the side of the hydraulic pump is simultaneously connected to overflow Valve 1c, fluid is through overflow valve oil return box 1a.

Operation principle：Fig. 1 show mould matched moulds state, in the presence of injector helical screw agitator, high-temperature fusion plastics Entered by the sprue 81 in injection portion, then die cavity 30, the melting into die cavity 30 are injected by runner cast gate through runner 82 Plastics through a period of time pressurize curing molding；As shown in Fig. 2 during die sinking, in the presence of pull-rod spring 60, the first parting Face is opened, and core plate 4 and cavity plate 3 are moved to left, and when moving to left to the step of the left end of pull bar 6, the stopping of being obstructed of core plate 4 is moved to left, Cavity plate 3 continues to move to left, and the second die joint is opened, and now, can be taken off the plastics in running channel, is easy to injection moulding next time；Point After type is finished, bool product is remained in die cavity 30, and now rotary shaft 11 rotates 180 °, and the product in the die cavity of lower end is transferred to Upper end, then movable plate 2 move to right, driven mold matched moulds.

After matched moulds, moved to left to upper end die cavity 30 by hydraulic control system control correction body 7, compressing bool product is carried out Correction, what this process was realized in：The right positions of reversal valve 1f must conduct, and fluid drives hydraulic cylinder to export through hydraulic control one-way valve 1g Bar is moved to left, and when oil liquid pressure rises to the set pressure of electric contact type pressure gauge 1h, reversal valve 1f middle positions must be conducted, hydraulic pressure Pump 1d off-loads, hydraulic cylinder pressurize, when pressure drops to the pressure of electric contact type pressure gauge 1h setting, the left positions of reversal valve 1f obtain electric Conducting, to hydraulic pressure oil supply cylinder, pressure gos up hydraulic pump 1d, and hydraulic cylinder take-off lever is moved to right so that realize correction body 7 move to left, pressurize, The working cycles for moving to right.

While the product of the upper end is corrected the correction pressurize of body 7, under the die cavity 30 of lower end continues with the cooperation of injection portion One injection moulding of bool product, shaping rear mold die sinking, upper end passes through fixed base 1 through the bool product of overcorrection On push rod 10 promote push pedal 32, then ejected by ejector beam 31, as finalization product, and the product of lower end injection moulding Continuation is rotated by rotary shaft 11 is corrected, and is circulated with this, in said process, time and the correction of product curing molding Dwell time is identical, to ensure that shaping and shaping can be carried out synchronously, in fact, the shaping to bool can be regarded as to being solidified into The extension of type time, by the measure using correction unit, realizes marginal not modeling, side correction, one side improve production efficiency, the opposing party Face lengthens hardening time, so as to further reduce the deflection of bool product, improves the Forming Quality of product.

Schematically the utility model and embodiments thereof are described above, the description does not have restricted, accompanying drawing Shown in be also one of implementation method of the present utility model, actual structure is not limited thereto.So, if this area Those of ordinary skill enlightened by it, do not departing from the case that the utility model creates objective, designed without creative The frame mode similar to the technical scheme and embodiment, all should belong to protection domain of the present utility model.

Claims (6)

1. a kind of injection mold of automatic shaping, including fixed pedestal (1), movable plate (2), die cavity (30), push pedal (32), die cavity Plate (3), core plate (4), solid plate (5), pull bar (6), correction body (7), hydraulic cylinder (70), sprue bush fixed plate (8), sprue bush (80), sprue (81), runner (82), guide pillar (9) and guide pin bushing (90), it is characterised in that：Fixed pedestal (1) right side sets It is equipped between movable plate (2), and movable plate (2) and cavity plate (3) and is connected by support column (20), is set on the cavity plate (3) There are two die cavities (30) symmetrical above and below, any one described die cavity (30) is connected by ejector beam (31) with push pedal (32)；Its In a die cavity (30) be engaged with the core (40) of core plate, between the core plate (4) and solid plate (5) by draw Bar (6) is connected, and described correction body (7) side is arc and coordinates with die cavity another described (30), corrects the another of body (7) Side is connected with hydraulic cylinder (70), and running channel is provided with the sprue bush fixed plate (8), and running channel includes being located in sprue bush (80) Sprue (81) and the multiple runners (82) being connected with sprue (81), the cast gate and die cavity of the runner (82) (30) connect, correction body (7) and cavity plate (3) are connected by guide pillar (9), and are provided with guide pin bushing (90) in cavity plate (3), And correction body (7) is by hydraulic control system control.

2. the injection mold of a kind of automatic shaping according to claim 1, it is characterised in that：Set on the movable plate (2) There is the push-rod hole of distribution symmetrical above and below, the push-rod hole is relative with push pedal (32).

3. the injection mold of a kind of automatic shaping according to claim 1, it is characterised in that：Movable plate (2) middle part It is provided with the rotary shaft (11) through fixed pedestal (1).

4. the injection mold of a kind of automatic shaping according to claim 2, it is characterised in that：With the fixation of correction unit homonymy Pedestal is provided with push rod (10), and the push rod (10) can promote push pedal (32) by push-rod hole.

5. the injection mold of a kind of automatic shaping according to claim 1, it is characterised in that：It is cased with the pull bar (6) Pull-rod spring (60).

6. the injection mold of a kind of automatic shaping according to claim 1, it is characterised in that：The hydraulic control system bag Include pressure dwelling loop, the pressure dwelling loop includes the oil absorption filter (1b) being sequentially connected, hydraulic pump (1d), check valve (1e), changes To valve (1f), hydraulic control one-way valve (1g) and electric contact type pressure gauge (1h), the hydraulic control one-way valve (1g) and hydraulic cylinder (70) And connect, the side of the hydraulic pump (1d) is simultaneously connected to overflow valve (1c).