CN208687635U - A kind of workpiece and its production mold using double-shot moulding - Google Patents
A kind of workpiece and its production mold using double-shot moulding Download PDFInfo
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- CN208687635U CN208687635U CN201821556713.6U CN201821556713U CN208687635U CN 208687635 U CN208687635 U CN 208687635U CN 201821556713 U CN201821556713 U CN 201821556713U CN 208687635 U CN208687635 U CN 208687635U
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Abstract
The utility model discloses a kind of workpiece using double-shot moulding and its production molds, wherein the workpiece includes: ontology and is arranged in inner body wall, to the extension for extending certain distance on the inside of ontology；The extension includes extending matrix and embedded division；The root for extending matrix is fixed in inner body wall；The embedded division is embedded in the root certain depth for extending matrix, to reduce the thickness for extending matrix root；The ontology and the embedded division are the first material, and the extension matrix is second of material.Embedded division is embedded in the root certain distance for extending matrix, reduces the thickness for extending matrix root, when demoulding to the workpiece, will not further improve product quality the phenomenon that the root for extending matrix generates shrink.
Description
Technical field
The utility model relates to car light double-shot moulding technical fields, and in particular to a kind of using double-shot moulding
Workpiece and its production mold.
Background technique
Since the characteristics of vehicle moulding and piecemeal is determined, can cooperate with hood above the edge of front car light lampshade, due to
Hood has downward movement travel, therefore front car light lampshade needs edge above it to make the indent knot for avoiding hood
Structure.The cover of the concave inward structure and lampshade is integrally formed by the way of double-shot moulding in two times, finally synthesizes a part.
The part be molded complete demoulding when, since the root wall thickness of concave inward structure is blocked up, the phenomenon that causing concave inward structure to shrink,
Influence product appearance.
The prior art is to be improved and improves.
Utility model content
The application is intended to provide a kind of workpiece using double-shot moulding and its production mold, and workpiece is avoided to generate shrink
Phenomenon, to improve product quality.
According to a first aspect of the present application, this application provides a kind of workpiece using double-shot moulding, comprising: ontology
And it is arranged in inner body wall, to the extension for extending certain distance on the inside of ontology；The extension include extend matrix and
Embedded division；The root for extending matrix is fixed in inner body wall；The root that the embedded division is embedded in extension matrix is certain
Depth, to reduce the thickness for extending matrix root；The ontology and the embedded division are the first material, and the extension matrix is
Second of material.
The workpiece, wherein the extension is V-type, and is open outwardly；The outer wall on the first side of V-type extension is set
It sets on the inner wall of ontology, the second side extends certain distance to ontology inside.
The workpiece, wherein the root for extending matrix is L-type, and the long side of L-type root is fixed on inner body wall
On, short side is fixed with embedded division.
The workpiece, wherein the outside for extending matrix and inside all have the pattern draft convenient for rear mold die sinking,
The rear mold is for forming the extension matrix.
The workpiece, wherein the exposed surface of the embedded division is concordant with the extension inside of matrix.
The workpiece, wherein the workpiece is lampshade；The light transmittance of the ontology is greater than the light transmission for extending matrix
Rate.
The workpiece, wherein the ontology is on the lampshade for supplying light transmissive lamp shade body；The extension
The edge of the lamp shade body is set, and the extension matrix is fixed for shading, with exterior part.
According to a second aspect of the present application, this application provides a kind of production moulds of workpiece using double-shot moulding
Tool, comprising: mould before first, the first rear mold and the second rear mold；Mould and first rear mold shape under molding state before described first
At the first type chamber, the first type chamber is used to form the ontology and embedded division of the workpiece；It is mould before described first, after molding
The ontology, the embedded division after molding and second rear mold form second type chamber, the second type under molding state
Chamber is used to form the extension matrix of the workpiece.
According to the third aspect of the application, this application provides a kind of production moulds of workpiece using double-shot moulding
Tool, comprising: mould before second, mould before the second rear mold and first；Mould and second rear mold shape under molding state before described second
At second type chamber, the second type chamber is used to form the extension matrix of the workpiece；It is second rear mold, after molding described
Mould forms the first type chamber under molding state before extending matrix and described first, and the first type chamber is used to form the workpiece
Ontology and embedded division.
The beneficial effects of the utility model are:
The utility model provides a kind of workpiece using double-shot moulding and its production mold, wherein the workpiece packet
It includes: ontology and being arranged in inner body wall, to the extension for extending certain distance on the inside of ontology；The extension includes extending
Matrix and embedded division；The root for extending matrix is fixed in inner body wall；The embedded division is embedded in the root for extending matrix
Portion's certain depth, to reduce the thickness for extending matrix root；The ontology and the embedded division are the first material, the extension
Matrix is second of material.Embedded division is embedded in the root certain distance for extending matrix, reduces the thickness for extending matrix root,
When demoulding to the workpiece of injection molding, production will not be further improved the phenomenon that the root for extending matrix generates shrink
Quality.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the workpiece provided by the utility model using double-shot moulding；
Fig. 2 is the workpiece stripping means schematic diagram of Fig. 1；
Fig. 3 is a kind of schematic diagram one for making mold provided by the utility model；
Fig. 4 is a kind of schematic diagram two for making mold provided by the utility model；
Fig. 5 is the schematic diagram one of another production mold provided by the utility model；
Fig. 6 is the schematic diagram two of another production mold provided by the utility model.
Specific embodiment
The utility model is described in further detail below by specific embodiment combination attached drawing.
This application provides a kind of workpiece using double-shot moulding and its production mold, this workpiece is automobile headlamp
Lampshade, which more specifically refers to the cover for light transmission.The top of lampshade and hood cooperate, and lower section is matched with front bumper
It closes, side and fender cooperate.For lampshade when cooperating with hood, hood has the stroke moved downward, and lampshade is evacuation hood
The stroke that moves downward and form concave inward structure.The mode that the root of the concave inward structure generallys use side pumping demoulds, therefore mold
More side core-pulling structures, the structure of mold is relative complex, and production efficiency is low.Since the concave inward structure is made in rear mold, if right
Mold cancels side core-pulling structure, then the inner side and outer side for forming the extension of concave inward structure requires to form the draft being opened backward oblique
Degree, it is blocked up so as to cause root, visible appearance shrink phenomenon can be generated in demoulding, influences product quality.And the application institute
The workpiece of offer will not only be generated visible by being embedded in embedded division in the root of extension with reducing the blocked up problem in root
Appearance shrink phenomenon, while workpiece is after moulding, and mould is opened along preceding mould positive direction before only needing, and rear mold is along rear mold positive direction
Die sinking is not required to carry out side pumping to workpiece again, eliminates the side core-pulling structure of mold, reduce die cost, improve production efficiency,
Also improve product quality.
Embodiment one,
A kind of workpiece using double-shot moulding is present embodiments provided, this workpiece is specially the lamp of automobile headlamp
Cover specifically uses the lampshade of double-shot moulding.Shown in Figure 1, this workpiece includes: ontology 10 and extension 20.Extend
Portion 20 be arranged on the inner wall of ontology 10 and to the inside of ontology 10 extend certain distance, as shown in fig. 1, ontology 10 it is interior
Wall refers to the right side wall of ontology 10 in Fig. 1, and the inside of corresponding ontology 10 refers to the right direction of the right side wall of ontology 10.
Extension 20 is V-type, and the opening of the extension 20 of V-type shape is outwardly, and as shown in fig. 1, the extension 20 of V-type shape is opened
Mouth refers to the upper right side towards ontology 10 outwardly.Ontology 10 is arranged in the outer wall on the first side of the extension 20 of V-type shape
On inner wall, the second side of V-type extension 20 extends certain distance to the inside of ontology 10.First side of V-type shaped extensions 20
Together with the molding of ontology 10, the second side extends certain distance to the inside of ontology 10, so as to form the structure being recessed inwardly,
The top edges that the concave inward structure is located at automobile headlamp lampshade are used to cooperate with the hood of automobile, are moved downward with avoiding hood
Stroke.In present embodiment, the second side need to meet the edge that can stop hood to the certain distance extended on the inside of ontology 10
Part, in actual production, can be arranged according to the specific structure and shape at hood edge the certain distance length and
The shape of concave inward structure.
In other embodiments, the extension 20 of the V-type shape is also possible to positioned at the lower section side of automobile headlamp lampshade
Edge and outside method, edge are respectively intended to cooperate with the front bumper of automobile and fender, to block front bumper and fender
Part, so that automobile headlamp is visually more beautiful.
Extension 20 includes extending matrix 220 and embedded division 210.The root 221 for extending matrix 220 is fixed on ontology 10
On inner wall, i.e. the root 221 of extension matrix 220 is molded on the inner wall of ontology 10.Embedded division 210, which is embedded in, extends matrix 220
221 certain depth of root, the certain depth need to be more than or equal to aforementioned 20 first side of extension thickness (i.e. left and right in Fig. 1
Direction), to reduce 221 thickness of root for extending matrix 220, to extend the root 221 of matrix 220 during demoulding
The phenomenon that shrink will not be generated.The root 221 for extending matrix 220 refers to the left end portion for extending matrix 220 in Fig. 1, that is, forms
Part on the inner wall of ontology 10.As shown in fig. 1, the root 221 for extending matrix 220 is L-type, the length of the root 221 of L-type
While fixing and (being molded as one) on the inner wall of ontology 10, short side and embedded division 210 are fixed (being molded as one).
The exposed surface of embedded division 210 is concordant with the inside of matrix 220 is extended, as shown in fig. 1, outside the embedded division 210
The surface of dew refers to the lower surface of embedded division 210.After embedded division 210 is embedded into the root 221 for extending matrix 220, in root 221
Interior formation step, as shown in fig. 1, the short side of L-type root 221 is in the upper surface of step, which has certain altitude, centainly
The short transverse of height is the thickness direction on 20 second side of extension above-mentioned.The root 221 for extending matrix 220 is regarded as one
It is whole, in the case where the thickness of the entirety is constant, it is embedded in embedded division 210 to the whole interior, thus 210 top of embedded division
Extend the opposite reduction of thickness of the root 221 of matrix 220, i.e., root 221 will form the short of L-type root 221 as shown in Figure 1
The thickness on side reduces.In present embodiment, with certain thickness step (embedded division) when reducing the thickness of root 221, only
Root 221, which need to be met, will not generate shrink phenomenon in demoulding, can be according to the height for needing to set step in actual production
It spends (i.e. the thickness of embedded division).
In the present embodiment, extends the outside (outside refers to that V-type extends the direction of matrix 220 outwardly) of matrix 220 and prolong
The inside for stretching matrix 220 all has the pattern draft being opened backward.Shown in Figure 2, the outside 222 for extending matrix 220 has
Pattern draft, the inside 223 for extending matrix 220 have pattern draft, and two pattern drafts are convenient for the same rear mold to be opened, after
Mould extends matrix 220 for forming.Such as shown in Fig. 1, the outside 222 for extending matrix 220 tilts inwardly along extending direction, prolongs
The inside 223 for stretching matrix 220 tilts outward along extending direction, so that this workpiece is after the completion of injection molding, for forming this
The preceding mould of body 10 and embedded division 210 is towards preceding mould positive direction F1Demoulding, for form extend matrix 220 rear mold towards rear mold just
Direction F2It demoulds, the dotted line in Fig. 2 refers to that molding extends the parting line after matrix 220.Compared to previous concave structure
Side is taken to take out the mode of demoulding, this structure not only reduces the structure that demoulding is taken out in side, mould structure simplified, so that being produced
Workpiece the phenomenon that will not generating shrink, further improve product quality, and improve production efficiency.
It should be noted that embedded division 210 is the part extended from the inner wall of ontology 10, therefore ontology 10 and insertion
Portion 210 is the part of single injection-molded, extends the part that matrix 220 is single injection-molded, the component of injection molding twice
It is shaped to a monolithic construction, to form workpiece provided by the present embodiment.Ontology 10 and embedded division 210 are the first material
Material, extension matrix 220 are second of material.Ontology 10, embedded division 210 and extension matrix 220 are integrally formed using double-shot moulding.
That is, can be first injection molding ontology 10 and embedded division 210, then injection molding extends matrix 220；Or it is also possible to
First injection molding extends matrix 220, then injection molding ontology 10 and embedded division 210.The sequence of injection molding does not influence to this work
The improvement of part structure.
In the present embodiment, due to the lampshade that this workpiece is automobile headlamp, and V-type extends in matrix 220 is formed by
Recessed structure is for avoiding exterior part (such as hood), and ontology 10 is to extend on lampshade for supplying light transmissive lamp shade body
The edge of lamp shade body is arranged in portion 20, and V-type extends matrix 220 and forms concave inward structure, and the extension matrix 220 of the indent is for hiding
Light is fixed with exterior part.Therefore, to realize the translucent effect of ontology 10 and extending the shaded effect of matrix 220, the workpiece
The light transmittance of ontology 10 is greater than the light transmittance for extending matrix 220.It is understood that since the light transmittance of the ontology 10 of workpiece is big
In the light transmittance of the extension matrix 220 of workpiece, therefore it is used to be formed the first material of ontology 10 and embedded division 210 and is used to shape
Color at second of material for extending matrix 220 is not identical, the first material be it is colourless or light, second material is black
Or other dark colors.
Using in the workpiece of double-shot moulding provided by the present embodiment, the ontology 10 and embedded division 210 of workpiece are primary
Injection molding extends 220 single injection-molded of matrix, and the sequence of injection molding does not influence the change of Workpiece structure.Relatively
In molding sequence, the corresponding two kinds of molding dies of this workpiece, such as following embodiment two and embodiment three, two kinds of embodiments are not only mould
The difference of lamps structure, and molding sequence is also different.
Embodiment two,
Present embodiments provide a kind of production mold of workpiece using double-shot moulding, the production mold for first at
Type ontology 10 and embedded division 210, reshaping extend matrix 220.
As shown in figure 3 and figure 4, this production mold includes: mould 30 before first, the first rear mold 40 and the second rear mold 50 to ginseng.The
Mould 30 and the first rear mold 40 form the first type chamber 100 under molding state before one, which is used for the sheet of shaping workpiece
Body 10 and embedded division 210.Mould 30, ontology after molding 10, embedded division after molding 210 and the second rear mold 50 are molding before first
Second type chamber 200 is formed under state, which is used for the extension matrix 220 of shaping workpiece.
Mould 30 and the first rear mold 40 mold after forming the first type chamber 100 before first, the injection molding first in the first type chamber 100
Material is planted, the ontology 10 and embedded division 210 of shaping workpiece after the first material solidification.After the first material solidification, after first
Positive direction F of the mould 40 along rear mold2Die sinking, and the first rear mold 40 is changed to the second rear mold 50.Mould 30, after molding before first
Body 10, embedded division after molding 210 and the molding of the second rear mold 50 form second type chamber 200, are molded second into second type chamber 200
Kind material, the extension matrix 220 of shaping workpiece after second of material solidification.Positive direction F of the mould 30 along preceding mould before first1It opens
Mould, positive direction F of second rear mold 50 along rear mold2Die sinking, obtains this workpiece.
Embodiment three,
The production mold of another workpiece using double-shot moulding is present embodiments provided, the production mold is for first
Molding extends matrix 220, reshaping ontology 10 and embedded division 210, and the production mold is being tied with the mold in embodiment three
It is also different on structure.
Shown in referring to figs. 5 and 6, this production mold includes: mould 60 before second, mould 30 before the second rear mold 50 and first；The
Mould 60 and the second rear mold 50 form second type chamber 200 under molding state before two, which prolongs for shaping workpiece
Stretch matrix 220.Mould 30 forms the first type chamber under molding state before second rear mold 50, extension matrix 220 and first after molding
100, which is used for the ontology 10 and embedded division 210 of shaping workpiece.
Mould 60 and the second rear mold 50 mold after forming second type chamber 200 before second, the injection molding second in second type chamber 200
Material is planted, the extension matrix 220 of shaping workpiece after second of material solidification.After second of material solidification, 60 edge of mould before second
The positive direction F of preceding mould1Die sinking, and mould 30 before mould 60 before second is changed to first.Second rear mold 50, extension matrix after molding
The molding of mould 30 forms the first type chamber 100 before 220 and first, is molded the first material into the first type chamber 100, the first material is solidifying
The ontology 10 and embedded division 210 of shaping workpiece after Gu.Positive direction F of the mould 30 along preceding mould before first1Die sinking, the second rear mold 50 is along rear
The positive direction F of mould2Die sinking, obtains this workpiece.
Production mold in 3 two embodiments of above-described embodiment two and embodiment is after product injection molding, before only needing
Mould is opened along preceding mould positive direction, rear mold along rear mold positive direction, can to product stripping, compared to it is existing need to be to extending matrix
Upper surface demoulds in such a way that side is taken out, and simplifies mould structure, reduces demoulding step, reduces the process-cycle of mold,
Die cost is reduced, so that mold is easier to cooperate, extends die life, more improves the reliability of mold.Meanwhile it adopting
In the mode for taking out demoulding with side, in order to which the side pumping type core guaranteed on mold can be molded well and not pushed away by huge injection pressure
Out, mold clamping direction needs huge clamp force come the injection pressure that inside generates when fighting injection molding, therefore side core-pulling molding
Limit the size of the automotive lamp product using this structure.It can be seen that the mould structure after cancelling side core-pulling structure,
When producing automotive lamp product, product is not limited by the side core-pulling structure on mold, convenient for the processing to product.
In conclusion in a kind of workpiece and its production mold using double-shot moulding provided by the present application, workpiece packet
Ontology and extension are included, the root of extension is fixed on the inside on the inner wall of ontology and to ontology and extends certain distance.This prolongs
Extending portion includes embedded division and extends matrix, and embedded division is embedded in the root certain depth for extending matrix, extends matrix to reduce
Behind root, thus during demoulding, the phenomenon that shrink will not be generated by extending the root of matrix.Ontology and embedded division are one
Secondary molding component, extension matrix are one-time formed component, are this workpiece after two components one monolithic constructions of formation.And
And since the inner side and outer side of the extension matrix of this workpiece all has pattern draft, after workpiece injection molding, mould edge before only needing
The positive direction of preceding mould is opened, and rear mold is opened along the positive direction of rear mold, the side core-pulling structure of die sinking mode is taken out without carrying out side, further
Simplify mould structure, not only save production cost, also improve production efficiency.
Use above specific case is illustrated the utility model, is merely used to help understand the utility model, and
Not to limit the utility model.Think of for those skilled in the art of the present invention, according to the utility model
Think, several simple deductions, deformation or replacement can also be made.
Claims (9)
1. a kind of workpiece using double-shot moulding characterized by comprising ontology and be arranged in inner body wall, to
Extend the extension of certain distance on the inside of ontology；The extension includes extending matrix and embedded division；The root for extending matrix
Portion is fixed in inner body wall；The embedded division is embedded in the root certain depth for extending matrix, extends matrix root to reduce
Thickness；The ontology and the embedded division are the first material, and the extension matrix is second of material.
2. workpiece as described in claim 1, which is characterized in that the extension is V-type, and is open outwardly；V-type extension
The outer wall on the first side is arranged on the inner wall of ontology, and the second side extends certain distance to ontology inside.
3. workpiece as claimed in claim 1 or 2, which is characterized in that the root for extending matrix is L-type, the length of L-type root
While being fixed in inner body wall, short side is fixed with embedded division.
4. workpiece as described in claim 1, which is characterized in that the outside for extending matrix and inside all have convenient for rear mold
The pattern draft of die sinking, the rear mold is for forming the extension matrix.
5. workpiece as claimed in claim 4, which is characterized in that the exposed surface of the embedded division extends the interior of matrix with described
Side is concordant.
6. workpiece as described in claim 1, which is characterized in that the workpiece is lampshade；The light transmittance of the ontology is greater than institute
State the light transmittance for extending matrix.
7. workpiece as claimed in claim 6, which is characterized in that the ontology is on the lampshade for supplying light transmissive lampshade
Ontology；The edge of the lamp shade body is arranged in the extension, and the extension matrix is fixed for shading, with exterior part.
8. a kind of production mold of the workpiece using double-shot moulding characterized by comprising mould before first, the first rear mold
With the second rear mold；Mould and first rear mold form the first type chamber under molding state before described first, and the first type chamber is used
In the ontology and embedded division that form the workpiece as described in claim 1-7 any one；It is mould before described first, after molding described
Ontology, the embedded division after molding and second rear mold form second type chamber under molding state, and the second type chamber is used
In the extension matrix for forming the workpiece as described in claim 1-7 any one.
9. a kind of production mold of the workpiece using double-shot moulding characterized by comprising mould before second, the second rear mold
Mould before with first；Mould and second rear mold form second type chamber under molding state before described second, and the second type chamber is used
In the extension matrix for forming the workpiece as described in claim 1-7 any one；Second rear mold, the extension after molding
Mould forms the first type chamber under molding state before matrix and described first, and the first type chamber is for forming such as claim 1-7
The ontology and embedded division of workpiece described in any one.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821556713.6U CN208687635U (en) | 2018-09-21 | 2018-09-21 | A kind of workpiece and its production mold using double-shot moulding |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821556713.6U CN208687635U (en) | 2018-09-21 | 2018-09-21 | A kind of workpiece and its production mold using double-shot moulding |
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| CN208687635U true CN208687635U (en) | 2019-04-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109237424A (en) * | 2018-09-21 | 2019-01-18 | 广州小鹏汽车科技有限公司 | A kind of workpiece and its production mold, production method using double-shot moulding |
-
2018
- 2018-09-21 CN CN201821556713.6U patent/CN208687635U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109237424A (en) * | 2018-09-21 | 2019-01-18 | 广州小鹏汽车科技有限公司 | A kind of workpiece and its production mold, production method using double-shot moulding |
| CN109237424B (en) * | 2018-09-21 | 2024-04-30 | 广州小鹏汽车科技有限公司 | Workpiece formed by double-color injection molding, manufacturing mold and manufacturing method thereof |
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