CN206326809U - Injection mold - Google Patents
Injection mold Download PDFInfo
- Publication number
- CN206326809U CN206326809U CN201621431910.6U CN201621431910U CN206326809U CN 206326809 U CN206326809 U CN 206326809U CN 201621431910 U CN201621431910 U CN 201621431910U CN 206326809 U CN206326809 U CN 206326809U
- Authority
- CN
- China
- Prior art keywords
- protrusion
- injection
- molding cavity
- injection molding
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Toys (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model is related to a kind of mould, more particularly to a kind of injection mold.In the utility model, comprising the die ontology with injection molding cavity, multiple injecting holes connected with the injection molding cavity are offered on die ontology；The inwall of injection molding cavity has part protuberance to constitute protrusion, protrusion is configured adjacent to the injecting hole, and the plastic material injected from injecting hole in the injection molding cavity gradually spreads after the protrusion to surrounding, the plastic material in the injection molding cavity is injected after shaping turns into housing, and the inner side of housing is just to the protrusion.In terms of existing technologies, the design passes through injection mold simple in construction, when improving injection mobility and the shot of injection moulding plastic material make injection formed housing integral thickness is identical, apparent size is consistent, improve product stability, the stability and yields of housing are lifted, and improves the problems such as joint line and flash occurs in product.
Description
Technical field
The utility model is related to a kind of mould, more particularly to a kind of injection mold.
Background technology
The various kinds of equipment such as mobile phone, flat board uses more and more frequent, close examination standard of the people to its profile in present society
It is increasingly stricter, also constantly broken through in structure design, the configuration design that various texture are superior, moulding is exquisite progresses into people
Sight, therefore manufacture is exquisite, the perfect product of technique will possess major markets.
Under normal circumstances, the shell of mobile phone, such as battery cover, in injection mold during injection moulding, due to injection mold
Enter glue point difference, so that when the injecting hole of injection mold is to injection plastic material inside injection mold, close to the area of injecting hole
Domain plastic material amount is more, and filling at first is completed, and the amount of the plastic material in the region away from injecting hole is less, has finally filled
Into.Closely and after injection mold completes the injection of plastic material and is shaped to housing, the shell dimension formed around injecting hole will
More than the shell dimension away from injecting hole formation, the finished size ultimately formed is inconsistent, makes the housing when in use can not be close
Main body is covered, body interior component placement is have impact on and lays and equipment appearance, asked while joint line and flash etc. occurs in housing
Topic.
Therefore, how using injection mold simple in construction, the mobility of injection moulding plastic material and injection when improving injection
Amount make injection formed housing integral thickness is identical, apparent size is consistent, improve product stability, lift the stabilization of housing
Property and yields, and it is most important to improve the problems such as joint line and flash occurs in product.
Utility model content
The purpose of this utility model is to provide a kind of injection mold simple in construction, injection moulding plastic material when improving injection
Mobility and shot make it that the integral thickness of the housing that injection is formed in injection mold is identical, apparent size is consistent,
The stability and yields of housing are lifted, and improves product and joint line and flash occurs.
In order to solve the above technical problems, of the present utility model provide a kind of injection mold, the mould with injection molding cavity is included
Have and offer N number of injecting hole connected with the injection molding cavity on body, the die ontology；Wherein, the N be more than or equal to
1 natural number.
The inwall of the injection molding cavity has part protuberance to constitute protrusion, and the protrusion is set adjacent to the injecting hole
Put, and the plastic material injected from the injecting hole in the injection molding cavity gradually spreads after the protrusion to surrounding,
And the plastic material in the injection injection molding cavity, after shaping turns into housing, the inner side of the housing is just to the protrusion.
The utility model embodiment is in terms of existing technologies, multiple adjacent to note due to being provided with injection mold body
The protrusion of mole, thus during by injecting hole to injection mold body interior injection plastic material, because plastic material is in stream
Through during protrusion, it is necessary to bypass protrusion, and because protrusion make it that the space of the part in die ontology narrows so that
The plastic material for obtaining protrusion tails off, and the housing around injecting hole is thinning, and flow velocity of the plastic material in protrusion is relative
Slowly, so cause shell injection mould in each area of space simultaneously be full of by plastic material.Therefore, by this simple
Structure design, reduce the plastic cement amount around injecting hole, the mobility of plastic material when improving injection so that note in injection mold
It is moulding into housing integral thickness it is identical, apparent size is consistent, lifted housing stability and yields, it is to avoid injection
Occur the phenomenons such as joint line and flash on the housing of formation.
In addition, the lower mould that the die ontology coordinates comprising upper mould, with the upper mould, and the protrusion be arranged on it is described
On upper mould or the lower mould；Wherein, when the protrusion is arranged on the upper mould, the plastic cement material injected in the injection molding cavity
Material is after shaping turns into housing, and the inner surface of the housing is towards the upper mould；When the protrusion is arranged on the lower mould
When, the plastic material in the injection molding cavity is injected after shaping turns into housing, and the inner surface of the housing is towards the lower mould.It is logical
The opposed flattened housing of inner surface can be made by crossing this mould, and when body interior lays the elements such as battery, housing smooth can cover
Lid main body, and screens is fixed with main body, it is fitted close.
In addition, each injecting hole is distributed on the upper mould or the lower mould；When the protrusion is arranged on the upper mould
When upper, each injecting hole is distributed on the upper mould；When the protrusion is arranged on the lower mould, each injecting hole is distributed in institute
State on lower mould.So that injected plastics material can be flowed when injecting mould by ridge to other directions, change injected plastics material stream
To, reduce ridge to shell inner surface thickness, simultaneously because the space of ridge is smaller, injected plastics material can be slowed down
In the flow velocity of ridge, when injected plastics material flows to mould Zone Full, product each several part completes injection jointly, solves housing
Flash and joint line problem.
In addition, the thickness of the protrusion is 1st/1st to three/5th of the thickness of shell.So as to further control
Inner surface and shell inner surface other spot size consistency of thickness, inner surface flat smooth of the housing processed just to ridge.
Secondly, the middle part that uplift part is located in the injection molding cavity, and injecting hole is for even number and with the protrusion
It is symmetrical arranged two-by-two centered on axis.The injection material for flowing to centre jointly from injecting hole is reduced by the protrusion in the middle part of injecting hole
Material, while even number injecting hole makes injected plastics material during injection uniformly respectively hold flowing to mould, it is ensured that the note at two ends in injection molding cavity
Moulding material is well-balanced while being full of.
In addition, the protrusion includes M uplift sector, and the M is the natural number more than or equal to 1；Wherein, each protuberance
Section is coaxially disposed in the middle part of the injection molding cavity, and each uplift sector corresponds to a pair of symmetrically arranged injecting holes two-by-two respectively, uses
It is spaced from each other in by two injecting holes.So as to reduce the accumulation of injection molding material around injection hole, make the shell between two injection holes
Thickness is identical with perimeter shell thickness.
Further, the end face of each uplift sector is a plane or is a cambered surface.So that injected plastics material more smoothly flows through
The boss of mould, forms smooth shell, reduces the formation of flash and junction.
Finally, it is inclined-plane or cambered surface transition between the inwall of the surrounding of each uplift sector and the injection molding cavity.Make injected plastics material
Circulation is more convenient.
Brief description of the drawings
Fig. 1 is upper mould and lower mould overall schematic in the utility model first embodiment；
Fig. 2 is the sectional view of upper mould in the utility model first embodiment；
Fig. 3 is bump partial schematic diagram in the utility model first embodiment；
Fig. 4 is upper mould and lower mould overall schematic in the utility model second embodiment.
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Each embodiment of type is explained in detail.However, it will be understood by those skilled in the art that each in the utility model
In embodiment, in order that reader more fully understands the application and proposes many ins and outs.But, even if without these skills
Art details and many variations based on following embodiment and modification, can also realize the required guarantor of each claim of the application
The technical scheme of shield.
First embodiment of the present utility model is related to a kind of injection mold, as shown in figure 1, including the mould with injection molding cavity
Multiple injecting holes 2 connected with injection molding cavity are offered on tool body 1, and the die ontology.
Also, the inwall of the injection molding cavity has part protuberance to constitute protrusion 3, and protrusion 3 is set adjacent to injecting hole 2
Put, and the plastic material injected from injecting hole in injection molding cavity 4 gradually spreads after protrusion 3 to surrounding, and injection injection
Plastic material in chamber 4 is after shaping turns into housing, and the inner side of housing is just to protrusion 3.
By the above it is seen that, due to the protrusions 3 provided with multiple neighbouring injecting holes 2 in injection mold body,
Thus by injecting hole 2 to when injecting plastic material inside injection mold body 1, because plastic material is when flowing through protrusion 3,
Need to bypass protrusion 3, and because protrusion 3 make it that the space of the part in die ontology narrows, so that protrusion 3
Plastic material tail off, the housing around protrusion 3 is thinning, and flow velocity of plastic material when by protrusion 3 relatively delay
Slowly, so cause shell injection mould in each area of space simultaneously be full of by plastic material.Therefore, by this simple
Structure design, reduces the plastic cement amount around injecting hole 2, the mobility of plastic material when improving injection so that noted in injection mold 1
It is moulding into housing integral thickness it is identical, apparent size is consistent, lifted housing stability and yields, it is to avoid injection
Occur the phenomenons such as joint line and flash on the housing of formation.
Specifically, as shown in figure 1, in the present embodiment, die ontology 1 is engaged by upper mould 1-1 and with upper mould 1-1
Lower mould 1-2 compositions, and protrusion 3 is arranged on mould 1-1, and the plastic material in injection injection molding cavity turns into housing in shaping
Afterwards, the inner surface of housing is towards upper mould 1-1.The opposed flattened housing of inner surface can be made by mould 1, laid in body interior
During the elements such as battery, housing can smooth covering main body, and with main body fix screens, be fitted close.
In addition, as shown in figure 1, in the present embodiment, protrusion 3 is with injecting hole 2 simultaneously positioned at the upper mould 1-1 of mould 1
On, and injecting hole 2 is evenly distributed on mould 1-1.Thus it is seen that, when injected plastics material inject mould when can pass through protrusion
3 to other directions flow, change injected plastics material flow direction, reduce ridge to shell inner surface thickness, simultaneously because grand
The space for playing mould between position 3 is smaller, can slow down flow velocity of the injected plastics material in protrusion 3, to flow to mould 1 complete when injected plastics material
During portion region, product each several part completes injection jointly, solves the problems, such as housing flash and joint line.
Meanwhile, in order to further improve the flatness of shell inner surface, in the present embodiment, as shown in figure 1, protrusion
3 thickness is 1st/1st to three/5th of thickness of shell.So as to further control inner surface of the housing just to ridge
With other spot size consistency of thickness of shell inner surface, and inner surface flat smooth.
In addition, as shown in figure 1, ridge 3 is located at the middle part of the injection molding cavity 4, and injecting hole 2 is for even number and with institute
It is symmetrical arranged two-by-two centered on the axis M for stating protrusion 3.
Specifically, when injected plastics material is entered in injection molding cavity by injecting hole 2, the presence of protrusion 3 is reduced from note
Mole 2-1 and injecting hole 2-2 flow to the injected plastics material of protuberance step jointly, while injected plastics material when even number injecting hole 2 makes injection
Flowing is respectively uniformly held to mould, it is ensured that two ends injected plastics material is well-balanced while being full of in injection molding cavity 4.
In addition, as shown in Fig. 2 in the present embodiment, protrusion 3 includes two uplift sector 3-1.Wherein, and two grand
Section 3-1 is played on the middle part symmetry axis M of injection molding cavity 4, and be coaxially disposed, and each uplift sector respectively corresponding a pair it is symmetrical two-by-two
The injecting hole 2 of setting, for two symmetrical injecting hole 2-1 and injecting hole 2-2 to be spaced from each other.
It follows that by the layout designs of above-mentioned injecting hole 2 and protrusion 3, reducing the heap of the surrounding injection molding material of injecting hole 2
Product, makes the outer casing thickness formed between two injecting holes 2 identical with perimeter shell thickness.
Furthermore, it is desirable to explanation, in the present embodiment, protrusion 3-1 quantity is only illustrated exemplified by two,
And in actual application process, uplift sector 3-1 quantity also can carry out appropriate increasing according to the actual size of injection-moulded housing
Plus, and ensure that each uplift sector 3-1 is coaxially disposed on upper mould 1-1, and the quantity of corresponding injecting hole 2 also can be according to uplift sector
3-1 quantity carry out even-multiple increase, with ensure each uplift sector 3-1 respectively correspond to a pair of symmetrically arranged injections two-by-two
Hole 2.
Moreover, it is noted that in the present embodiment, as shown in figure 3, each uplift sector 3-1 end face is cambered surface
3-2, so that the boss of injected plastics material more smoothly flow through molds, forms smooth shell, reduces flash and junction
Formation.Certainly in actual application process, uplift sector 3-1 end face can also be plane.
Finally, it is worth mentioning at this point that, as shown in figure 3, can be between each uplift sector 3-1 surrounding and the inwall of injection molding cavity
Cambered surface 3-3 transition or chamfered transition.Make injected plastics material circulation more convenient.
Second embodiment of the present utility model is related to a kind of injection mold, and second embodiment is big with first embodiment
Cause is identical, and its main distinction is：By the above-mentioned content to first embodiment, injecting hole 2 and protrusion 3 are positioned at upper
On mould 1-1.And in the present embodiment, as shown in figure 4, injecting hole 2 ' and protrusion 3 ' are located on lower mould 1-2 ', upper mould 1-1 ' will be
Common die, without protrusion, also, after the plastic material in injection injection molding cavity turns into housing in shaping, table in housing
Face is right against lower mould 1-2 ' protrusion 3.Thus it is seen that, by such a mode, can also realize the injection to housing, and
By change protrusion 3 ' position, also can equally realize the smooth of shell inner surface, improve and body is used cooperatively
Degree.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific implementation of the present utility model
Example, and in actual applications, can to it, various changes can be made in the form and details, without departing from spirit of the present utility model
And scope.
Claims (8)
1. a kind of injection mold, comprising the die ontology with injection molding cavity, offers the N number of and injection on the die ontology
The injecting hole of chamber connection；Wherein, the N is the natural number more than or equal to 1, it is characterised in that：
The inwall of the injection molding cavity has part protuberance to constitute protrusion, and the protrusion is configured adjacent to the injecting hole,
And the plastic material injected from the injecting hole in the injection molding cavity gradually spreads after the protrusion to surrounding, and note
Enter the plastic material in the injection molding cavity after shaping turns into housing, the inner side of the housing is just to the protrusion.
2. injection mold according to claim 1, it is characterised in that：The die ontology includes upper mould and the upper mould
The lower mould coordinated, and the protrusion is arranged on the upper mould or the lower mould；
Wherein, when the protrusion is arranged on the upper mould, the plastic material injected in the injection molding cavity turns into shaping
After housing, the inner surface of the housing is towards the upper mould；
When the protrusion is arranged on the lower mould, the plastic material injected in the injection molding cavity turns into housing in shaping
Afterwards, the inner surface of the housing is towards the lower mould.
3. injection mold according to claim 2, it is characterised in that：Under each injecting hole is distributed in the upper mould or is described
On mould；
When the protrusion is arranged on the upper mould, each injecting hole is distributed on the upper mould；
When the protrusion is arranged on the lower mould, each injecting hole is distributed on the lower mould.
4. injection mold according to claim 1, it is characterised in that：The thickness of the protrusion is the thickness of shell
1/1st to three/5th.
5. injection mold according to claim 1, it is characterised in that：The middle part that uplift part is located in the injection molding cavity,
And injecting hole is even number and is symmetrical arranged two-by-two centered on the axis of the protrusion.
6. injection mold according to claim 5, it is characterised in that：The protrusion includes M uplift sector, and the M
For the natural number more than or equal to 1；
Wherein, each uplift sector is coaxially disposed in the middle part of the injection molding cavity, and each uplift sector correspond to respectively a pair it is symmetrical two-by-two
The injecting hole of setting, for two injecting holes to be spaced from each other.
7. injection mold according to claim 6, it is characterised in that：The end face of each uplift sector is a plane or is an arc
Face.
8. injection mold according to claim 6, it is characterised in that：The surrounding of each uplift sector and the inwall of the injection molding cavity
Between be inclined-plane or cambered surface transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621431910.6U CN206326809U (en) | 2016-12-24 | 2016-12-24 | Injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621431910.6U CN206326809U (en) | 2016-12-24 | 2016-12-24 | Injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206326809U true CN206326809U (en) | 2017-07-14 |
Family
ID=59292357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621431910.6U Expired - Fee Related CN206326809U (en) | 2016-12-24 | 2016-12-24 | Injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206326809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112045941A (en) * | 2019-06-06 | 2020-12-08 | 河南裕展精密科技有限公司 | Injection mould |
-
2016
- 2016-12-24 CN CN201621431910.6U patent/CN206326809U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112045941A (en) * | 2019-06-06 | 2020-12-08 | 河南裕展精密科技有限公司 | Injection mould |
| CN112045941B (en) * | 2019-06-06 | 2022-06-21 | 河南裕展精密科技有限公司 | Injection mould |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170714 Termination date: 20191224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |