Secondary high temperature precise injection molding mould
Technical field
The utility model relates to mould, and the secondary high temperature precise injection molding mould of weld bond can not appear in the product that especially relates to a kind of production.
Background technology
The temperature of two strands of molten plastic glue is inconsistent in the process of injection molding of Shooting Technique because when filling; Meeting mutually through regular meeting's generation weld bond (claiming the folder water wave again), weld bond is one of the most serious forming defect of injection moulded products, and it not only influences the presentation quality of goods; And weld bond is influential to product strength; And when post processings such as japanning, weld bond is difficult to handle, so must shorten the length of weld bond.Because the interface display that the filling of molten plastic glue is met mutually from the teeth outwards, cause intensity and outward appearance to reduce.
Summary of the invention
In order to overcome above-mentioned shortcoming, the utility model purpose is to provide a kind of product of production the secondary high temperature precise injection molding mould of weld bond can not occur.
The utility model is realized through following technical measures; A kind of secondary high temperature precise injection molding mould emptyly in when comprising the identical mutual driving fit of outline is die behind the front mould Renhe of shaping mold cavity, and the outside of die is equipped with the front template and the rear pattern plate of mutual coupling respectively behind the front mould Renhe; Said front template is fixed on the panel; Said rear pattern plate is arranged on the base plate through roof movement, wherein, is provided with a heat block between said front template and the panel.
As optimal way, said heat block be provided with electric calorifie installation metal derby or in the metal derby of horizontal wave passage is arranged.Thereby the flowing liquid heating that can directly switch on and heat or in passage, lead to heat.
Concrete, said electric calorifie installation is heating wire or electric heating piece.
Concrete, two sides of said base plate respectively are fixed with the square iron of an equal height, are provided with the thimble top board of band thimble between the said square iron.
Die the utility model heats the front mould Renhe through electric heating or high-temp liquid at once when just accomplishing injection molten plastic glue after; Make the plastic cement fusion once more in the die cavity; Thereby the materials flow meet can fully merge; Product processed weld bond can not occur like this, makes product processed not only attractive in appearance but also intensity is higher.
Description of drawings
Fig. 1 is the decomposition texture sketch map of the utility model embodiment.
The specific embodiment
Below in conjunction with embodiment and contrast accompanying drawing the utility model is done further explain.
A kind of secondary high temperature precise injection molding mould; Empty preceding die 4 and back die 7 in when comprising the identical mutual driving fit of outline for shaping mold cavity; The outside of preceding die 4 and back die 7 is equipped with the front template 3 and rear pattern plate 6 of mutual coupling respectively; Front template 3 is fixed on the iron heat block 2 that a set inside has electric heating piece, and iron heat block 2 is fixed on the panel 1, and rear pattern plate 6 is movably arranged on the base plate 9 through thimble top panel 11 and Ejector Retainer Plate 10; Two sides of base plate 9 respectively are fixed with the square iron 8 of an equal height, are provided with the thimble panel 11 and Ejector Retainer Plate 10 of band thimble between the square iron 8.
During injection moulding; Die 4 and back die 7 before when just molten plastic glue is injected in completion, heating through the electric heating piece in the iron heat block 2 at once; Make the plastic cement fusion once more in the die cavity, thereby the materials flow meet can merge fully, product processed 5 weld bond can not occur like this.
More than be that the utility model secondary high temperature precise injection molding mould is set forth; Be used for helping to understand the utility model; But the embodiment of the utility model is not restricted to the described embodiments; Anyly do not deviate from the change done under the utility model principle, modification, substitute, combination, simplify, all should be the substitute mode of equivalence, be included within the protection domain of the utility model.