A kind of mould for injection packaging process
The present invention relates to the device in the production technology of chip surface acoustic wave filter product, be applicable to the LTCC(LTCC of integration module) injection molding packaging operation a kind of device used of product, be specially a kind of mould for injection packaging process.
Along with communication, the develop rapidly of the relevant industries such as electronics, the demand of surface acoustic wave product is increasing, also more and more fierce, the current LTCC product of competition simultaneously adopts transfer type mould note equipment to complete in injection molding packaging operation, see Fig. 1, in the middle of patrix 1 body, injection hole 2 is set, injection moulding bar is set above patrix 1, product is placed on the injection-molding surfaces platform of counterdie 4, the punch that counterdie 4 is as a whole, when matched moulds, bottom recesses 5 and the counterdie 4 of patrix 1 surround cavity 6, and in figure, 7 is spring.This mould structure, injected plastics material is to pour into by injection hole 2, be extruded on product by injection moulding bar 3 application of forces again, it causes on product, is positioned at injection hole 2 times, and size is that the transverse cross-sectional area (about φ 19mm) of an injection hole 2 can not mount product, thereby cause the yield of product to reduce, and because the interval size of cavity 6 is fixed, in the time need to producing the product of different-thickness, just need to change counterdie, cause production efficiency low.
Summary of the invention
The problem existing for prior art, the invention provides a kind of mould for injection packaging process, can avoid an injection hole transverse cross-sectional area on product can not mount product, guarantees product yield, enhances productivity.
Its technical scheme is such: it comprises upper die and lower die, described patrix connects push rod, described counterdie is arranged on base plate, it is characterized in that: described upper mould body is the shape of falling boss, described patrix spiral-lock is on the fixed block of top base, described counterdie adopts split type, it comprises die and injection-molding surfaces platform, the boss of described patrix, described die, described injection-molding surfaces platform surround cavity jointly, the bottom of described injection-molding surfaces platform connects described base plate, the bottom of described die connects adjusting screw mandrel, and described adjusting screw mandrel is arranged on described base plate.
It is further characterized in that: on described fixed block body, concave station is set, described patrix spiral-lock is on the table top of described concave station; Described die body is annular, the cavity that the centre of described annular die is upper and lower perforation, and described injection-molding surfaces platform is placed in described cavity, and the upper surface of described injection-molding surfaces platform is lower than the upper surface of described die; Described push rod symmetry is hanging connected in described patrix two avris; On described base plate both sides, hole is set, described adjusting screw mandrel runs through described Kong Houqi top and connects described die, and its bottom connects described base plate; The quantity of described adjusting screw mandrel is at least two.
After the present invention adopts said structure, cancel the injection hole on patrix, injected plastics material is put into product below in advance, so just avoid original structure injection hole transverse cross-sectional area on product can not mount the defect of product, guarantee the yield of product, and when matched moulds, the boss of patrix, the die of counterdie, injection-molding surfaces platform surrounds cavity jointly, due to the adjusting screw mandrel of the die bottom regulating action in short transverse, and the mating reaction of push rod, make the interval size of this cavity become capable of regulating, pressure while regulating screw mandrel to guarantee matched moulds, like this, in the time producing the product of different-thickness without changing counterdie, only need governor motor parameter, therefore improved production efficiency.
Accompanying drawing explanation
Fig. 1 is prior art structural representation;
Fig. 2 is structural representation of the present invention.
the specific embodiment:
See Fig. 2, the present invention includes patrix 1, counterdie 4, patrix 1 connects push rod 5, counterdie 4 is arranged on base plate 6, patrix 1 body is the shape of falling boss, arrange on fixed block 8 in top base 7, on fixed block 8 bodies, concave station 8-1 is set, patrix 1 spiral-lock is on the table top of concave station 8-1, counterdie 4 is split type, comprise die 2 and injection-molding surfaces platform 3, die 2 bodies are annular, the centre of annular die 2 is upper, the cavity of lower perforation, injection-molding surfaces platform 3 is placed in cavity, the upper surface of injection-molding surfaces platform 3 is lower than the upper surface of die 2, the boss of patrix 1 when matched moulds, die 2, injection-molding surfaces platform 3 surrounds cavity 9 jointly, the bottom of injection-molding surfaces platform 3 is installed on base plate 6, the bottom of die 2 is by regulating screw mandrel 10 to be connected with base plate 6, 11 is installing hole, regulate the quantity of screw mandrel 10 to be at least two, push rod 5 symmetries are hanging connected in 1 liang of avris of patrix.