CN207240734U - A kind of air-conditioning moulding injection mold with contraction distortion control - Google Patents

A kind of air-conditioning moulding injection mold with contraction distortion control Download PDF

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Publication number
CN207240734U
CN207240734U CN201721119938.0U CN201721119938U CN207240734U CN 207240734 U CN207240734 U CN 207240734U CN 201721119938 U CN201721119938 U CN 201721119938U CN 207240734 U CN207240734 U CN 207240734U
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China
Prior art keywords
groove
plastic
cavity plate
insert
punch
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Active
Application number
CN201721119938.0U
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Chinese (zh)
Inventor
陈勇
肖文滨
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QUNJIAN PLASTIC PRODUCTS CO Ltd ZUNYI
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QUNJIAN PLASTIC PRODUCTS CO Ltd ZUNYI
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Priority to CN201721119938.0U priority Critical patent/CN207240734U/en
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Abstract

The utility model provides a kind of air-conditioning moulding injection mold with contraction distortion control, including punch-pin and cavity plate, cavity plate is correspondingly arranged in the surface of punch-pin, the lower end of cavity plate offers embedding groove, groove insert is arranged in embedding groove, and between the bottom of punch-pin and groove insert it is plastic parts moulding area, gap T is left between the top of groove insert and embedding groove, and amounts of contraction of the gap T with plastic vertically is identical, spring groove is offered at the top of groove insert, compression spring is vertically provided with spring groove, and the slot bottom in embedding groove is held out against at the top of compression spring, sprue bush is vertically additionally provided with cavity plate, and the runner of sprue bush is connected with plastic parts moulding area.To solve the problem of existing Shooting Technique can cause plastic to deform, influence plastic part size and surface quality.The utility model belongs to injection molding art.

Description

A kind of air-conditioning moulding injection mold with contraction distortion control
Technical field
A kind of injection mold is the utility model is related to, belongs to injection molding technology field.
Background technology
Injection molding process process includes filling, and -- pressurize -- cooling -- demoulds four-stage.When utilize mould carry out plastics Part injection production, when the molten plastic from injecting machine material tube enters mold cavity through injection molding machine nozzle, mold runner, is cooling down In the stage, during plastics in cavity are from molten condition to Solid State Transformation, plastic can be shunk.Due to plastic product wall itself It is thick, filling sequential uneven, the contraction of plastic can be caused inconsistent, cause plastic to be deformed, influence plastic part size and table Face quality.
The content of the invention
The purpose of this utility model is that:A kind of air-conditioning moulding injection mold with contraction distortion control is provided, with Solve the problem of existing Shooting Technique causes plastic to deform, influences plastic part size and surface quality.
To solve the above problems, intend using such a air-conditioning moulding injection mold with contraction distortion control, bag Punch-pin and cavity plate are included, cavity plate is correspondingly arranged in the surface of punch-pin, and the lower end of cavity plate offers embedding groove, and groove insert is arranged at In embedding groove, and it is plastic parts moulding area between the bottom of punch-pin and groove insert, is stayed between the top of groove insert and embedding groove There is gap T, and amounts of contraction of the gap T with plastic vertically is identical, offer spring groove at the top of groove insert, in spring groove Compression spring is vertically provided with, and the slot bottom in embedding groove is held out against at the top of compression spring, sprue bush is vertically additionally provided with cavity plate, and The runner of sprue bush is connected with plastic parts moulding area.
Its forming method is as follows:
In use, by sprue channel to plastic parts moulding area filled plastics, under injection pressure effect, die plate insert overcomes The pressure of compression spring retreats gap T distances, and carries out pressurize until cooling stage, when filling plastic finishes, and injection pressure reduces, Plastic begins to cool down, shrinks, and under the action of compression spring, die plate insert starts to move with shrinkage of injection molded parts, and gap T becomes larger, Plastic surface is extruded at the same time, until cooling terminates.Plastic is due to being subject to die plate insert external force to act on, its internal stress hair Changing, is changed into regular contraction by unordered contraction, so as to change the defects of shrinkage of injection molded parts deformation causes.
Compared with prior art, the present invention is improved on the basis of existing cavity plate so that in injection moulding process, in cavity plate Die plate insert can be moved with the flexible of plastic parts moulding process, and plastic is due to being subject to die plate insert external force to act on, inside it Stress changes, and is changed into regular contraction by unordered contraction, so as to change the defects of shrinkage of injection molded parts deformation causes.
Brief description of the drawings
Fig. 1 is the sectional view of mould of the present invention;
Fig. 2 is the partial enlarged view of mold work main part in Fig. 1.
Embodiment
Embodiment:
Referring to Figures 1 and 2, the present embodiment provides a kind of air-conditioning moulding injection mold with contraction distortion control, bag Punch-pin 1 and cavity plate 2 are included, cavity plate 2 is correspondingly arranged in the surface of punch-pin 1, and the lower end of cavity plate 2 offers embedding groove 21, groove edge Block 3 is arranged in embedding groove 21, and is plastic parts moulding area 4 between the bottom of punch-pin 1 and groove insert 3, the top of groove insert 3 Gap T is left between embedding groove 21, T refers to the width dimensions in gap, not reference numeral, and gap T and plastic edge are perpendicular To stroke it is identical, the top of groove insert 3 offers spring groove 31, is vertically provided with compression spring 6 in spring groove 31, and presses The top of spring 6 is held out against in being vertically additionally provided with sprue bush 7 in the slot bottom of embedding groove 21, cavity plate 2, and the runner of sprue bush 7 with Plastic parts moulding area 4 is connected.
Its forming method is as follows:In use, made by sprue channel to 4 filled plastics of plastic parts moulding area in injection pressure Under, die plate insert 3 overcomes the pressure of compression spring 6 to retreat gap T distances, and carries out pressurize until cooling stage, works as filling plastic Finishing, when injection pressure reduces, plastic begins to cool down, shrinks, and under the action of compression spring 6, die plate insert 3 is opened with shrinkage of injection molded parts Begin to move, gap T becomes larger, while extrudes plastic surface, until cooling terminates.Plastic is due to being subject to die plate insert 3 external force act on, its internal stress changes, and are changed into regular contraction by unordered contraction, so as to change shrinkage of injection molded parts deformation The defects of causing.

Claims (1)

1. a kind of air-conditioning moulding injection mold with contraction distortion control, including punch-pin(1)And cavity plate(2), cavity plate(2)It is right Punch-pin should be arranged at(1)Surface, it is characterised in that:Cavity plate(2)Lower end offer embedding groove(21), groove insert(3) It is arranged at embedding groove(21)It is interior, and punch-pin(1)With groove insert(3)Bottom between be plastic parts moulding area(4), groove insert (3)Top and embedding groove(21)Between leave gap T, and amounts of contraction of the gap T with plastic vertically is identical, groove insert (3)Top offer spring groove(31), spring groove(31)Inside vertically it is provided with compression spring(6), and compression spring(6)Top hold out against In embedding groove(21)Slot bottom, cavity plate(2)Inside vertically it is additionally provided with sprue bush(7), and sprue bush(7)Runner and plastic into Type area(4)It is connected.
CN201721119938.0U 2017-09-04 2017-09-04 A kind of air-conditioning moulding injection mold with contraction distortion control Active CN207240734U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721119938.0U CN207240734U (en) 2017-09-04 2017-09-04 A kind of air-conditioning moulding injection mold with contraction distortion control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721119938.0U CN207240734U (en) 2017-09-04 2017-09-04 A kind of air-conditioning moulding injection mold with contraction distortion control

Publications (1)

Publication Number Publication Date
CN207240734U true CN207240734U (en) 2018-04-17

Family

ID=61884511

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721119938.0U Active CN207240734U (en) 2017-09-04 2017-09-04 A kind of air-conditioning moulding injection mold with contraction distortion control

Country Status (1)

Country Link
CN (1) CN207240734U (en)

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