CN106217699A - Casting mold - Google Patents
Casting mold Download PDFInfo
- Publication number
- CN106217699A CN106217699A CN201610585322.6A CN201610585322A CN106217699A CN 106217699 A CN106217699 A CN 106217699A CN 201610585322 A CN201610585322 A CN 201610585322A CN 106217699 A CN106217699 A CN 106217699A
- Authority
- CN
- China
- Prior art keywords
- cavity
- casting mold
- insert
- protuberance
- forming surface
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/34—Moulds having venting means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The application relates to part processing technique field, particularly relate to a kind of casting mold, it includes front cavity and rear cavity, also include the insert being installed in described front cavity or described rear cavity, in described insert, there is forming surface, the described forming surface of the inner surface of described front cavity, the inner surface of described rear cavity and described insert is collectively forming die cavity, and described forming surface has slow protuberance, and described slow protuberance protrudes near the side of described die cavity.After implementing pouring operation, when topping flows at slow protuberance, due to the drag effect of slow protuberance, the flowing velocity of topping reduces so that the air in die cavity has the more time to flow out in die cavity.Therefore, it is not easy that tired gas phenomenon occurs when using this casting mold cast product, thus improves the crudy of product.
Description
Technical field
The application relates to part processing technique field, particularly relates to a kind of casting mold.
Background technology
Pouring technology is technique the more commonly used in parts machining technical field, such as casting process, Shooting Technique etc.,
The casting mold that this type of processing technique is corresponding is provided with die cavity, during processing part, topping is injected in this die cavity, have to be formed
The product of reservation shape.
During watering ejection casting material, owing to being pre-existing in air in die cavity, along with the quick flowing of topping, a part of gas
Body cannot be discharged being plugged in the cavity wall of die cavity, and this kind of situation is tired gas phenomenon.Especially need on product
Type goes out the position of groove structure, it is easier to tired gas phenomenon occur.This kind of tired gas phenomenon is by the low side for the crudy causing product.
Summary of the invention
This application provides a kind of casting mold, to improve the crudy of product.
The casting mold that the application provides includes front cavity and rear cavity, also include being installed on described front cavity or described after
Insert on die, described insert has forming surface, the inner surface of described front cavity, the inner surface of described rear cavity and described
The described forming surface of insert is collectively forming die cavity, and described forming surface has slow protuberance, and described slow protuberance is near described
The side of die cavity is protruded.
Preferably, the cavity wall of described die cavity includes outward appearance moulding section and non-appearance moulding section, and described forming surface is formed
Described non-appearance moulding section.
Preferably, described front cavity having font molding projecting surface, described insert is installed in described rear cavity, and edge
Described front cavity and point to the direction of described rear cavity, described forming surface is positioned opposite with described font molding projecting surface.
Preferably, the direction of described rear cavity, the perspective plane of described font molding projecting surface are pointed to along described front cavity
It is positioned at the inside on the perspective plane of described forming surface.
Preferably, pointing to the direction of described rear cavity along described front cavity, the height of described slow protuberance is described word
2～3 times of the height of body formed projecting surface.
Preferably, described slow protuberance at least two, each described slow protuberance is along the bearing of trend of described forming surface
Interval is arranged.
Preferably, described insert at least two, between two adjacent described inserts, there is exhaust clearance.
Preferably, each described insert is all offered hole, location.
Preferably, in two adjacent described inserts, each relative in another one of each described slow protuberance in one
Described slow protuberance is interspersed.
Preferably, described slow protuberance is rectangular configuration.
The technical scheme that the application provides can reach following beneficial effect:
Casting mold provided herein adds insert, and this insert has slow protuberance, after implementing pouring operation,
When topping flows at this slow protuberance, due to the drag effect of slow protuberance, the flowing velocity of topping reduces so that in die cavity
Air have the more time to flow out in die cavity.Therefore, it is not easy occur that tired gas is existing when using this casting mold cast product
As, thus improve the crudy of product.
It should be appreciated that it is only exemplary that above general description and details hereinafter describe, can not be limited this
Application.
Accompanying drawing explanation
The sectional view of the casting mold that Fig. 1 is provided by the embodiment of the present application；
Fig. 2 is the partial enlarged drawing of structure shown in Fig. 1；
The part-structure schematic diagram of the casting mold that Fig. 3 is provided by the embodiment of the present application；
The structural representation of the insert that Fig. 4 is provided by the embodiment of the present application；
Fig. 5 is the structural representation of a kind of product.
Reference:
10-front cavity；
20-rear cavity；
30-insert；
The slow protuberance of 300-；
301-positions hole；
40-product.
Accompanying drawing herein is merged in description and constitutes the part of this specification, it is shown that meet the enforcement of the application
Example, and for explaining the principle of the application together with description.
Detailed description of the invention
Below by specific embodiment and combine accompanying drawing the application is described in further detail.
As Figure 1-4, the embodiment of the present application provides a kind of casting mold, and this casting mold may be used for product note
Moulding, it includes front cavity 10, rear cavity 20 and insert 30, and front cavity 10 is positioned opposite with rear cavity 20, and both can be fastened on
Together, i.e. carry out matched moulds, it is also possible to relatively open, i.e. carry out die sinking.Insert 30 can be installed on front cavity 10 or rear cavity 20
On, this insert 30 has forming surface, the forming surface of the inner surface of front cavity 10, the inner surface of rear cavity 20 and insert 30 is common
Forming die cavity, the profile of this die cavity is identical with the profile of product 40.
Having slow protuberance 300 in above-mentioned forming surface, this slow protuberance 300 is a part for forming surface, and it is near mould
The side in chamber is protruded, say, that this slow protuberance 300 makes the die cavity ultimately formed occur herein reducing on volume
Gesture.Specifically, slow protuberance 300 can only arrange one, and its position in front cavity 10 and rear cavity 20 can select flexibly,
The shape of slow protuberance 300 can be then triangle, arc etc..Insert 30 entirety may be configured as list structure, and it is with front
Die 10 or rear cavity 20 are detachably fixed.
During using above-mentioned casting mold to carry out product cast, after implementing pouring operation, it is slow that topping flows to this
Time at protuberance 300, due to the drag effect of slow protuberance 300, the flowing velocity of topping reduces so that the air in die cavity has more
Many time flows out in die cavity.Therefore, it is not easy that tired gas phenomenon occurs when using this casting mold cast product, thus improves
The crudy of product.
Usually, the surface of most products 40 comprises appearance parts and non-appearance part, adds for this appearance parts
Work prescription would generally be higher.Accordingly, the die cavity of casting mold comprises outward appearance moulding section and non-appearance moulding section,
This outward appearance moulding section is for the appearance parts of converted products 40, and non-appearance moulding section is then for the non-appearance of converted products 40
Part.As a example by the product 40 shown in Fig. 5, this kind of product 40 having depression, the outer surface of this depression is appearance parts, interior table
Face is non-appearance part.In consideration of it, above-mentioned forming surface can be made to form non-appearance moulding section, say, that insert 30 is installed
For forming the position of non-appearance part on casting mold.Even if the slow protuberance 300 in insert 30 can produce accordingly
Leaving molding structure on product, this molding structure also will not produce impact to the presentation quality of product 40.
With continued reference to Fig. 5, the appearance of this series products being usually provided with groove, this groove is for forming the font of product
Part, accordingly, can set font in front cavity 10 molding projecting surface, and this font molding projecting surface can be formed above-mentioned recessed
Groove.When pouring into a mould this series products 40, this font component is easier to tired gas phenomenon occur.It is therefore preferable that in embodiment, insert 30 can
It is installed in rear cavity 20, and points to the direction of rear cavity 20 along front cavity 10, the forming surface in insert 30 and aforementioned font
Molding projecting surface is positioned opposite.Now, slow protuberance 300 will be in the position closer to font molding projecting surface, when watering stream
When moving to font molding projecting surface, slow protuberance 300 can more rapid, play a role more targetedly, alleviate word with this
The tired gas phenomenon occurred at body formed projecting surface.
On the basis of such scheme, it is also possible to arrange as follows: point to the direction of rear cavity 20 along front cavity 10,
The perspective plane of font molding projecting surface is positioned at the inside on the perspective plane of forming surface.After being arranged such, the area of forming surface is sufficiently large,
Make forming surface can earlier reduce the flowing velocity of topping, and then strengthening prevents tired gas phenomenon from this effect occur.
It is to be appreciated that the protrusion degree of slow protuberance 300 will directly determine the flowing velocity of topping and the one-tenth of product
Type efficiency.When the protrusion of slow protuberance 300 is when too small, it reduces the DeGrain of topping flow velocity；When slow protuberance 300
Protrusion when excessive, topping flow velocity is too low, causes shaping efficiency on the low side.Therefore, it can by arranging slow protuberance 300
Protrusion degree, had both met the purpose preventing tired gas phenomenon, and had been unlikely to again to cause shaping efficiency too low.Specifically, along front
Die 10 points to the direction of rear cavity 20, and the height of slow protuberance 300 is 2～3 times of the height of font molding projecting surface.This
Place, the height of slow protuberance 300 is, ultimate range between non-salient part on slow protuberance 300 and forming surface；Font becomes
The height of type projecting surface is, ultimate range between the most non-salient part on font molding projecting surface and front cavity 10.
In order to preferably reduce the flow velocity of topping, slow protuberance 300 can be set at least two, each slow protuberance 300
Bearing of trend along forming surface is spaced to be arranged.It addition, slow protuberance 300 could be arranged to rectangular configuration, i.e. slow protuberance 300
End face be rectangular surfaces, its side is also rectangular surfaces.Employing rectangular configuration can be so that processing slow protuberance 300, simultaneously can
Improve stability during topping flowing.Further, this slow protuberance 300 can use list structure, when slow protuberance 300 is many
Time individual, the bearing of trend of each slow protuberance 300 can be parallel to each other, and strengthens stability during topping flowing with this.
When above-mentioned casting mold runs, the air in die cavity needs to be expelled to outside die cavity, in a kind of embodiment, and can be by insert
30 are set at least two, have exhaust clearance between two adjacent inserts 30.This exhaust clearance is smaller, and topping cannot be entered
Entering in this exhaust clearance, the air in die cavity then can flow out die cavity by this exhaust clearance.
In order to improve the positioning precision of each insert 30, can all offer hole 301, location in each insert 30, respectively position hole
301 can be interconnected, in order to same keeper is sequentially inserted in hole, multiple location 301.
In another embodiment, when insert 30 is set to multiple, in two adjacent inserts 30, each the most convex in one
Portion 300 is interspersed relative to each slow protuberance 300 in another one.Such as, one of them insert 30 is arranged multiple slowly
Protuberance 300, formation recess between two adjacent slow protuberances 300, and delaying in another insert 30 adjacent with this insert 30
Speed protuberance 300 is then positioned at the position corresponding with this recess.Slow protuberance after adopting the structure, on each slow protuberance 300
300 will form bigger acting surface, optimize the effect reducing topping flow velocity with this, make topping be not easy because of aforementioned recess simultaneously
Excessively concentrate and produce disorder.
The foregoing is only the preferred embodiment of the application, be not limited to the application, for the skill of this area
For art personnel, the application can have various modifications and variations.All within spirit herein and principle, that is made any repaiies
Change, equivalent, improvement etc., within should be included in the protection domain of the application.
Claims (10)
1. a casting mold, including front cavity and rear cavity, it is characterised in that also include being installed on described front cavity or described
Insert in rear cavity, described insert has forming surface, the inner surface of described front cavity, the inner surface of described rear cavity and institute
The described forming surface stating insert is collectively forming die cavity, and described forming surface has slow protuberance, and described slow protuberance is near institute
The side stating die cavity is protruded.
Casting mold the most according to claim 1, it is characterised in that the cavity wall of described die cavity include outward appearance moulding section and
Non-appearance moulding section, described forming surface forms described non-appearance moulding section.
Casting mold the most according to claim 1, it is characterised in that there is in described front cavity font molding projecting surface,
Described insert is installed in described rear cavity, and along described front cavity point to described rear cavity direction, described forming surface with
Described font molding projecting surface is positioned opposite.
Casting mold the most according to claim 3, it is characterised in that point to the side of described rear cavity along described front cavity
To, the perspective plane of described font molding projecting surface is positioned at the inside on the perspective plane of described forming surface.
Casting mold the most according to claim 3, it is characterised in that point to the side of described rear cavity along described front cavity
To, the height of described slow protuberance is 2～3 times of the height of described font molding projecting surface.
6. according to the casting mold according to any one of claim 1-5, it is characterised in that described slow protuberance is at least two
Individual, each described slow protuberance is spaced layout along the bearing of trend of described forming surface.
Casting mold the most according to claim 6, it is characterised in that described insert at least two, two adjacent institutes
State and there is between insert exhaust clearance.
Casting mold the most according to claim 7, it is characterised in that all offer hole, location in each described insert.
Casting mold the most according to claim 7, it is characterised in that in two adjacent described inserts, each in one
Described slow protuberance is interspersed relative to each described slow protuberance in another one.
10. according to the casting mold according to any one of claim 1-5, it is characterised in that described slow protuberance is rectangle knot
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610585322.6A CN106217699B (en) | 2016-07-22 | 2016-07-22 | Casting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610585322.6A CN106217699B (en) | 2016-07-22 | 2016-07-22 | Casting mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106217699A true CN106217699A (en) | 2016-12-14 |
| CN106217699B CN106217699B (en) | 2018-09-21 |
Family
ID=57532725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610585322.6A Expired - Fee Related CN106217699B (en) | 2016-07-22 | 2016-07-22 | Casting mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106217699B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113000681A (en) * | 2021-02-08 | 2021-06-22 | 中南大学 | Forming device of aluminum alloy top cover component with convex holes |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55159949A (en) * | 1979-06-01 | 1980-12-12 | Asahi Chem Ind Co Ltd | Forming mehod for article of injection forming type |
| JPH0740396A (en) * | 1993-07-31 | 1995-02-10 | Sony Corp | Mold |
| CN201070811Y (en) * | 2007-04-30 | 2008-06-11 | 汉达精密电子(昆山)有限公司 | Improved exhaustion structure |
| CN202498699U (en) * | 2012-01-13 | 2012-10-24 | 东莞康佳模具塑胶有限公司 | Exhaust meshed moving die insert |
| CN205767059U (en) * | 2016-07-22 | 2016-12-07 | 深圳天珑无线科技有限公司 | Casting mold |
-
2016
- 2016-07-22 CN CN201610585322.6A patent/CN106217699B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55159949A (en) * | 1979-06-01 | 1980-12-12 | Asahi Chem Ind Co Ltd | Forming mehod for article of injection forming type |
| JPH0740396A (en) * | 1993-07-31 | 1995-02-10 | Sony Corp | Mold |
| CN201070811Y (en) * | 2007-04-30 | 2008-06-11 | 汉达精密电子(昆山)有限公司 | Improved exhaustion structure |
| CN202498699U (en) * | 2012-01-13 | 2012-10-24 | 东莞康佳模具塑胶有限公司 | Exhaust meshed moving die insert |
| CN205767059U (en) * | 2016-07-22 | 2016-12-07 | 深圳天珑无线科技有限公司 | Casting mold |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113000681A (en) * | 2021-02-08 | 2021-06-22 | 中南大学 | Forming device of aluminum alloy top cover component with convex holes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106217699B (en) | 2018-09-21 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180921 Termination date: 20190722 |
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| CF01 | Termination of patent right due to non-payment of annual fee |