CN205969789U - Injection mold convenient to drawing of patterns of back -off plastic part - Google Patents

Injection mold convenient to drawing of patterns of back -off plastic part Download PDF

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Publication number
CN205969789U
CN205969789U CN201620848541.4U CN201620848541U CN205969789U CN 205969789 U CN205969789 U CN 205969789U CN 201620848541 U CN201620848541 U CN 201620848541U CN 205969789 U CN205969789 U CN 205969789U
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outer slide
injection molding
patterns
utility
die component
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CN201620848541.4U
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Inventor
李卫忠
钟业武
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Top Electric Appliances Industrial Ltd
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Top Electric Appliances Industrial Ltd
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Abstract

The utility model discloses an injection mold convenient to drawing of patterns of back -off plastic part, this injection mold convenient to drawing of patterns of back -off plastic part is equipped with the constant head tank on the outer slide, and the shaping injection molding tang of not only being convenient for also can be out of shape the injection molding application of force simultaneously, drives the tang through the outer slide slip and moves for the injection molding produces deformation and struts, thereby carries out the drawing of patterns. This mould passes through the hot plastic deformation of injection molding, utilizes the outer slide to remove and struts injection molding from the inboard drawing of patterns, not only makes product appearance avoid appearing pressing from both sides the line or the condition of pulling, has improved the yield simultaneously, the cost is reduced. Appearance quality's improvement for further improve the grade of product, has improved the profit, the utility model is suitable for a mould field.

Description

A kind of injection mold being easy to the back-off plastic parts demoulding
Technical field
This utility model is related to mould applications, more particularly to a kind of injection mold being easy to the back-off plastic parts demoulding.
Background technology
At present, carry back-off structure inside curved surface thin-walled transparent injection-molded parts, typically taken off using oblique top or slide structure Mould, such moulding outward appearance generally has clamp or draws trace, has had a strong impact on the quality of outward appearance, the grade of the product of reduction.Sternly There is also during weight and pull, draw bad phenomenon, and mould structure is complicated, not only wastes labour force, also results in production cost Too high.It would therefore be highly desirable to a kind of mould improving moulding yield rate and quality.
Utility model content
For solving the above problems, this utility model offer is a kind of to make the inner side demoulding using the mobile moulding that struts of outer slide It is easy to the injection mold of the back-off plastic parts demoulding.
This utility model solves its technical problem and be employed technical scheme comprise that:
A kind of injection mold being easy to the back-off plastic parts demoulding, including front die component and back die component, front die component is provided with Front in-mode inserts, back die component is provided with rear in-mode inserts, and the outer surface of rear in-mode inserts is provided with the solarization stricture of vagina face with back-off, in rear mold Interior mold insert is externally provided with push pedal, and push pedal is provided with two outer slides being symmetrically set, and each outer slide slides all in push pedal, respectively Outer slide is provided with least one locating slot, and locating slot is simultaneously used for the seam of injection molding part, each outer slide is equipped with tiltedly Face and at least one helical pitch hole, front die component is provided with baroclinic block and the time delay matching with each helical pitch hole with slopes which match Angle Pin.
It is further used as the improvement of technical solutions of the utility model, moulding is arch thin-walled Transparent Parts.
The beneficial effects of the utility model:This is easy to the mould of the back-off plastic parts demoulding, is provided with locating slot on outer slide, It is not only convenient for injection molding part seam, also can exert a force to moulding deformation simultaneously, slide by outer slide and drive seam to move, make Obtain moulding generation deformation to strut, thus carrying out the demoulding.The pyroplastic deformation by moulding for this mould, is moved using outer slide Strut moulding from the inner side demoulding, so that mould inside structure is optimized, avoid product appearance simultaneously and clamp occurs Or draw trace situation, reduce production cost.The raising of presentation quality, so that further increasing the grade of product, improves profit Profit.
Brief description
The utility model is described in further detail below in conjunction with the accompanying drawings:
Fig. 1 is this utility model embodiment front die component structural representation;
Fig. 2 is this utility model embodiment back die component structural representation;
Fig. 3 is insert structure schematic diagram in this utility model embodiment rear mold;
Fig. 4 is part A close-up schematic view in Fig. 3;
Fig. 5 is this utility model embodiment moulding structural representation;
Fig. 6 is this utility model embodiment outer slide structural representation;
Fig. 7 is this utility model embodiment entirety mould-matching structure schematic diagram;
Fig. 8 is this utility model embodiment demoulding state the first schematic diagram;
Fig. 9 is this utility model embodiment demoulding state the second schematic diagram.
Specific embodiment
Below with reference to embodiment and accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is carried out Clearly and completely describe, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment It is a part of embodiment of the present utility model, rather than whole embodiments, based on embodiment of the present utility model, the skill of this area The other embodiment that art personnel's on the premise of not paying creative work is obtained, belongs to the model of this utility model protection Enclose.
Referring to figs. 1 to Fig. 9, this utility model is a kind of injection mold being easy to the back-off plastic parts demoulding, including before module Part 1 and back die component 6, front die component 1 is provided with front in-mode inserts 2, and back die component 6 is provided with rear in-mode inserts 7, rear in-mode inserts Outer surface is provided with the solarization stricture of vagina face 72 with back-off 71, is externally provided with push pedal 9 in rear in-mode inserts 7, and push pedal 9 is provided with two symmetrically The outer slide 8 of setting, the slip of T-slot that each outer slide 8 is arranged all along in push pedal 9, each outer slide 8 is equipped with inclined-plane 83 and extremely A few helical pitch hole 82, front die component 1 be provided with the baroclinic block 3 matching with inclined-plane 83 and with prolonging that each helical pitch hole 82 matches When Angle Pin 5, each outer slide 8 is provided with least one locating slot 81, and locating slot 81 is simultaneously used for the seam of injection molding part 12 122.
This is easy to the injection mold of the back-off plastic parts demoulding, is provided with locating slot 81 on outer slide 8, is not only convenient for molding note Plastic 12 seam 122, also can be slided by outer slide 8 and drives seam 122 mobile so that noting to moulding force deformation simultaneously Plastic 12 produces deformation and struts, thus carrying out the demoulding.The pyroplastic deformation by moulding for this mould, using outer slide mobile support Open moulding from the inner side demoulding, so that product appearance is avoided and pull, improve yield rate simultaneously, reduce cost.Outward The raising of appearance quality, so that further increasing the grade of product, improves profit.
As this utility model preferred embodiment, moulding 12 is arch thin-walled Transparent Parts.
This utility model preferred embodiment, taking be molded arch thin-walled Transparent Parts as a example, as shown in figure 3, inside moulding 12 The plastic with back-off structure is had to shine stricture of vagina face 121, moulding 12 bottom both sides are provided with four seams 122.As shown in Figure 1 and Figure 2, front In-mode inserts 2 are used for the outside of injection molding part 12, and the outer surface of rear in-mode inserts 7 is provided with the solarization stricture of vagina face 72 with back-off 71, after In-mode inserts are used for the inner side of molding group plastic 12, and in push pedal 9, both sides are symmetrically arranged with outer slide 8, and outer slide 8 embeds push pedal 9 Interior and end face with push pedal 9, push pedal 9 is provided with T-shaped chute, and outer slide 8 two bottom sides are provided with muscle position 84, and muscle position 84 embeds T-shaped chute is interior and slides along chute, beneficial to the slip of outer slide 8.As shown in fig. 6, outer slide 8 end is provided with helical pitch hole 82, prolong When Angle Pin 5 one end be positioned on locating piece 4, the other end and helical pitch hole 82 clearance fit, and the diameter of time delay Angle Pin 5 is less than The diameter in helical pitch hole;During front mould ejection, between time delay Angle Pin 5 and helical pitch hole, there is certain diastema, outer slide is moved The certain delay effect of movable property life;Outer slide 8 end face is inclined-plane 83, coincide with baroclinic block, and external ram travel carries out spacing, treats After front in-mode inserts and the moulding outer surface demoulding, time delay Angle Pin 5 drives outer slide 8 to slide, be provided with two of outer slide 8 Locating slot 81, while forming moulding 12 seam 122, also can exert a force deformation so that in follow-up ejection to moulding 12 Can be good in journey pulling open moulding 12 both sides, then make rear in-mode inserts and the moulding inner surface demoulding, moulding 12 must be made Avoid being pulled.
During injection, as shown in Figure 7.After mold-closing injection, front mould ejects, front mould ejection process as shown in Figure 8, injection Outside part with the front in-mode inserts demoulding after, then drive outer slide 8 mobile by time delay Angle Pin 5, due to moulding 12 have certain Temperature, has thermoplasticity, strutting so that deforming inside moulding by bottom seam is mobile, inlaying in bottom Shai Wen face and rear mold The part part demoulding.Then, rear mold ejection, such as Fig. 9, rear mold ejection process, push pedal 9 ejects upwards, and now rear in-mode inserts are motionless, Also drive outer slide 8 mobile, the complete demoulding with rear in-mode inserts inside moulding simultaneously.The thermoplasticity by moulding for this mould Deformation, using outer slide 8 movement strut moulding so that inside moulding with rear in-mode inserts 7 outer side band back-off structure Shine stricture of vagina emaciated face mould, it is to avoid pulling during depanning, not only substantially increase presentation quality, and also reduce cost, there is pole High using value.
Certainly, the invention is not limited to above-mentioned embodiment, and those of ordinary skill in the art are without prejudice to this Equivalent variations or replacement also can be made, these equivalent deformation or replacement are all contained in the application on the premise of utility model spirit In claim limited range.

Claims (2)

1. a kind of injection mold being easy to the back-off plastic parts demoulding it is characterised in that:Including front die component(1)And back die component (6), described front die component(1)It is provided with front in-mode inserts(2), described back die component(6)It is provided with rear in-mode inserts(7), described after The outer surface of in-mode inserts is provided with band back-off(71)Solarization stricture of vagina face (72), in-mode inserts in the rear(7)It is externally provided with push pedal(9), Described push pedal(9)It is provided with two outer slides being symmetrically set(8), each described outer slide(8)All in push pedal(9)Upper cunning Dynamic, each described outer slide(8)It is provided with least one locating slot(81), described locating slot(81)It is simultaneously used for injection molding part (12)Seam(122), each described outer slide(8)On be equipped with inclined-plane(83)With at least one helical pitch hole(82), described front mould Assembly(1)It is provided with and inclined-plane(83)The baroclinic block matching(3)And with each helical pitch hole(82)The time delay Angle Pin matching (5).
2. a kind of injection mold being easy to the back-off plastic parts demoulding according to claim 1 it is characterised in that:Described note Plastic(12)For arch thin-walled Transparent Parts.
CN201620848541.4U 2016-08-05 2016-08-05 Injection mold convenient to drawing of patterns of back -off plastic part Active CN205969789U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620848541.4U CN205969789U (en) 2016-08-05 2016-08-05 Injection mold convenient to drawing of patterns of back -off plastic part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620848541.4U CN205969789U (en) 2016-08-05 2016-08-05 Injection mold convenient to drawing of patterns of back -off plastic part

Publications (1)

Publication Number Publication Date
CN205969789U true CN205969789U (en) 2017-02-22

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108715002A (en) * 2018-04-28 2018-10-30 芜湖盈奇塑业有限公司 A kind of discharging easily die assembly
CN108724628A (en) * 2018-04-28 2018-11-02 芜湖盈奇塑业有限公司 A kind of mold that production efficiency is high
CN108790060A (en) * 2018-04-28 2018-11-13 芜湖盈奇塑业有限公司 A kind of die assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108715002A (en) * 2018-04-28 2018-10-30 芜湖盈奇塑业有限公司 A kind of discharging easily die assembly
CN108724628A (en) * 2018-04-28 2018-11-02 芜湖盈奇塑业有限公司 A kind of mold that production efficiency is high
CN108790060A (en) * 2018-04-28 2018-11-13 芜湖盈奇塑业有限公司 A kind of die assembly

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