CN106064450A - Casting mold and stub bar form part - Google Patents
Casting mold and stub bar form part Download PDFInfo
- Publication number
- CN106064450A CN106064450A CN201610589518.2A CN201610589518A CN106064450A CN 106064450 A CN106064450 A CN 106064450A CN 201610589518 A CN201610589518 A CN 201610589518A CN 106064450 A CN106064450 A CN 106064450A
- Authority
- CN
- China
- Prior art keywords
- stub bar
- casting mold
- die
- charging aperture
- hole
- 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.)
- Pending
Links
- 238000005266 casting Methods 0.000 title claims abstract description 52
- 238000009434 installation Methods 0.000 claims description 22
- 238000001746 injection moulding Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000003754 machining Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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
- 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
- B29C45/2602—Mould construction elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
-
- 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
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The application relates to part processing technique field, particularly relate to a kind of casting mold and stub bar forms part, this casting mold includes that the die with die cavity and stub bar form part, described stub bar forms part and is removably installed on described die, described stub bar is formed and offers charging aperture on part, and described charging aperture is connected with described die cavity.Casting mold provided herein adds stub bar and forms part, when casting mold implements the operation of processing part, stub bar will be formed in this stub bar and formed in part, when the problem that stub bar ruptures occurring during taking out product, stub bar is positioned at stub bar and forms part, on line stub bar can be formed part to pull down from die, then take out stub bar, stub bar be formed part and reinstalls on die.Therefore, after stub bar ruptures, it is not necessary to whole casting mold is pulled down from production line and installs again to production line, improve the working (machining) efficiency of product with this.
Description
Technical field
The application relates to part processing technique field, particularly relates to a kind of casting mold and stub bar forms part.
Background technology
Pouring technology is technique the more commonly used in parts machining technical field, such as casting process, Shooting Technique etc.,
This type of processing technique is processing flow channel in casting mold, injects in this runner by liquid material so that raw material during processing part
Arrive in die cavity, form the part with reservation shape.
Being usually provided with charging aperture on above-mentioned casting mold, raw material eventually enters in die cavity by this charging aperture, pours
Cheng Hou, a part of raw material will be frozen into stub bar in charging aperture, after product takes out together with stub bar from casting mold, need
This part stub bar is got rid of.
But, after casting complete, during taking out product, the low strength after solidifying due to raw material or external impact
The reasons such as power, will appear from the situation of stub bar fracture, and the stub bar of fracture is positioned in the die of casting mold.When this occurs,
Generally require and whole casting mold is pulled down from production line, then take out the stub bar in die, then casting mold is installed on
Subsequent production is carried out on production line.Visible, traditional casting mold can make the working (machining) efficiency of product on the low side.
Summary of the invention
This application provides a kind of casting mold and stub bar forms part, to improve the working (machining) efficiency of product.
The first aspect of the application provides a kind of casting mold, it die including having die cavity, also includes stub bar shape
Member, described stub bar forms part and is removably installed on described die, and described stub bar is formed on part and offers charging aperture, described in enter
Material mouth is connected with described die cavity.
Preferably, on described charging aperture, one end away from described die has charging shoulder hole, described charging shoulder hole bag
Include the first hole section and the second hole section, described first hole section and described second hole section to connect successively along the direction near described die
Connecing, the cross sectional dimensions of described first hole section is more than the cross sectional dimensions of described second hole section, and described cross section is along being perpendicular to institute
The axially direction stating charging aperture extends.
Preferably, along the direction near described die, the cross sectional dimensions of described first hole section tapers into.
Preferably, the inwall of described charging aperture comprises conical inboard wall, along the direction near described die, in described taper
The lateral dimension of wall is gradually increased, and described is laterally perpendicular to the axial of described charging aperture.
Preferably, described stub bar formation part includes that body fixes the installation portion and securing member being connected, institute with described body
Stating and offer installing hole on installation portion, described securing member matches with described installing hole, and described installation portion is solid by described securing member
On described die.
Preferably, described installation portion is projection, and described projection is along being perpendicular to the axially direction of described charging aperture, relatively
Protrude in the surface of described body.
Preferably, described projection is positioned at the one end on described body away from described die.
Preferably, the axis of described installing hole is paralleled with the axis of described charging aperture.
Preferably, described installing hole is counterbore.
The second aspect of the application provides a kind of stub bar and forms part, and it is described in any of the above-described item that described stub bar forms part
The stub bar of casting mold forms part.
The technical scheme that the application provides can reach following beneficial effect:
Casting mold provided herein adds stub bar and forms part, implements the operation of processing part at casting mold
Time, stub bar will be formed in this stub bar and formed in part, and when there is, during taking out product, the problem that stub bar ruptures, stub bar is positioned at
Stub bar is formed in part, on line stub bar can be formed part and pull down from die, then take out stub bar, stub bar form part again
Install to die.Therefore, after stub bar ruptures, it is not necessary to whole casting mold is pulled down from production line and installs again to life
Produce on line, improve the working (machining) efficiency of product with this.
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 structural representation of the casting mold that Fig. 1 is provided by the embodiment of the present application；
Fig. 2 forms the structural representation of part by the stub bar that the embodiment of the present application is provided；
Fig. 3 forms the sectional view of part by the stub bar that the embodiment of the present application is provided.
Reference:
10-die；
20-stub bar forms part；
200-charging aperture；
200a-the first hole section；
201-body；
202-installation portion；
202a-installing hole；
203-securing member.
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 1-3, the embodiment of the present application provides a kind of casting mold, and this casting mold can be injection mold,
For processing working of plastics.This casting mold includes that die 10 and stub bar form part 20, and die 10 has die cavity, and stub bar forms part
20 are removably installed on die 10, and stub bar is formed and offers charging aperture 200 on part 20, on this charging aperture 200 and die 10
Die cavity be connected, in order to raw material is introduced in die cavity.It should be noted that the shape design of this charging aperture 200 needs to protect
After card part casting complete, stub bar can take out together with part from casting mold.
When using this casting mold processing part, raw material flows in charging aperture 200, further flows into the die cavity of die 10
In, and then in die cavity, it is frozen into the part with reservation shape, and in charging aperture 200, the raw material of solidification will form stub bar；So
After open this casting mold, from the side of casting mold take out part, now stub bar will be removed casting moulds together with part
Tool；Then stub bar is separated with part, to complete the processing of part.
During above-mentioned casting mold runs, if the problem that stub bar ruptures occurring, due to stub bar when taking out product
It is positioned at stub bar and forms part 20, it is possible on line stub bar is formed part 20 and pulls down from die 10, then take out stub bar, then will
Stub bar forms part 20 and reinstalls on die 10.Therefore, after stub bar ruptures, it is not necessary to by whole casting mold from production
Pull down on line and install again to production line, improve the working (machining) efficiency of product with this.
When operative employee pours into a mould raw material, when the position of raw material has arrived on charging aperture 200 one end away from die, behaviour
Making trade union and stop cast action, can taper off to a point during now raw material solidification part, and charging aperture stretches out in this point branch
200, during follow-up pickup, this tip portion is easily broken off, in once it falls into the die cavity on die 10, and will be to part
Crudy have a negative impact.Accordingly, can be set to feed shoulder hole by one end away from die 10 on charging aperture 200,
This charging shoulder hole includes that the first hole section 200a and the second hole section, this first hole section 200a and the second hole section can use cylinder
Hole, both are sequentially connected with along the direction near die 10, and the cross sectional dimensions of the first hole section 200a is more than the second hole section
Cross sectional dimensions, cross section herein extends along the axially direction being perpendicular to charging aperture 200.After being arranged such, the first hole section
200a can provide bigger space for raw material, and in the end of stub bar, raw material will be set in charging aperture 200 more, and
Being not easily formed the outer cutting-edge structure stretching in charging aperture 200, the part-structure being the most just prevented from stub bar falls in die cavity.
When the first hole section 200a is set to cylindrical hole, there is bigger turnover in charging shoulder hole, will be unfavorable for former
Material is stablized, is flowed rapidly, therefore can be set as follows the first hole section 200a: along the direction near die 10, the first hole
The cross sectional dimensions of section 200a tapers into, and such as this first hole section can be round taper hole.The now horizontal stroke of the first hole section 200a
Sectional dimension can be the minimum transverse cross-sectional dimension of the first hole section 200a, and the cross sectional dimensions of the second hole section can be the second hole
With this, the cross-sectional dimension of section, ensures that the first hole section 200a and the second hole section can form stair-stepping hole.Due to second
The effect of hole section is more to ensure that the flowing of raw material, and therefore the structure of this second hole section is according to the mass action of charging aperture 200
Design.
Noted above, after the shape design of charging aperture 200 needs to ensure part casting complete, stub bar can be with part one
Rising and take out from casting mold, based on this requirement, the inwall of charging aperture 200 could be arranged to the curved surface knot of complicated structure
Structure.But for the ease of processing charging aperture 200, the inwall of this charging aperture 200 can comprise conical inboard wall, along near die 10
Direction, the lateral dimension of this conical inboard wall is gradually increased, the horizontal axially direction being to be perpendicular to charging aperture 200 herein.Also
That is, it is possible to most of inwall of charging aperture 200 is set to conical inboard wall, the opposite end of charging aperture 200 is the most permissible
Making suitable adjustment, with other demands of satisfied charging, this conical inboard wall is easier to processing, reaches object defined above with this.
Installation between part 20 and die 10 is formed for stub bar, specifically can use the modes such as clamping, for the ease of installing
Stub bar formed part 20, simultaneously improve stub bar formed part 20 installation strength, stub bar formed part 20 can include body 201 and this
The fixing installation portion 202 connected of body 201 and securing member 203, aforesaid charging aperture 200 is formed on body 201, installation portion
Offering installing hole 202a on 202, securing member 203 matches with this installing hole 202a, so that installation portion 202 is by this securing member
203 are fixed on die 10.When using securing member 203 to install stub bar formation part 20, securing member 203 can provide bigger fastening
Active force, and securing member 203 is more convenient with the connection that die 10 and stub bar form part 20, is also achieved that and is easily installed material
Capitiform member 20, improves stub bar simultaneously and forms this effect of installation strength of part 20.Alternatively, this securing member 203 can be elected as
Threaded fastener, the hole on die 10 can be screwed hole accordingly, this screwed hole and this threaded fastener fits.
Above-mentioned installation portion 202 can be integrally machined with body 201, and installation portion 202 is with the shape of body 201, size can
With identical, now the installing hole 202a on installation portion 202 has bigger size.But, adopt the structure and install causing
The volume in portion 202 is excessive, and its space taken in casting mold is bigger than normal, is unfavorable for controlling the volume of whole casting mold, weight
Amount.In view of this, as shown in Figures 2 and 3, this installation portion 202 can be set to projection, this projection is along being perpendicular to charging aperture
Axially direction, protrudes relative to the surface of body 201.Now the volume of projection is relatively small, reduces casting mold with this
Volume and weight.
Owing to projection needs to fix with die 10, therefore projection installation site on body 201 will determine on body 201
Away from the distance between one end and the die 10 of die 10, and this distance will for the compact conformation degree of whole casting mold
Produce impact.Based on this, in one embodiment, projection installation site on body 201 can be preferably away from die 10
One end so that most of structure of body 201 is positioned at die 10, thus reduces the space that body 201 takies so that cast
The structure of mould is compacter.
Further, the axis of installing hole 202a can be paralleled with the axis of charging aperture 200 so that securing member 203 to
Die 10 and stub bar form the active force axis direction distribution along charging aperture 200 of part 20 applying, and then prevent this charging aperture 200
By easily occurring deforming the situation of even crackle after the active force in other directions, thus ensure the crudy of part.
Alternatively, installing hole 202a may be configured as counterbore.On the one hand, after securing member 203 is matched with in installing hole 202a,
Securing member 203 amount overhanging relative to this counterbore is less, and then the compact conformation degree of casting mold is produced invigoration effect；Another
Aspect, when securing member 203 coordinates with counterbore, securing member 203 can enter in counterbore quickly, thus improve stub bar and form part 20
Installation effectiveness.
The embodiment of the present application also provides for a kind of stub bar and forms part 20, and it is any of the above-described technical scheme institute that this stub bar forms part 20
The stub bar of the casting mold described forms part 20.
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 the die with die cavity, it is characterised in that also include that stub bar forms part, described stub bar shape
Member is removably installed on described die, and described stub bar is formed offers charging aperture on part, described charging aperture and described die cavity
It is connected.
Casting mold the most according to claim 1, it is characterised in that on described charging aperture, the one end away from described die has
Charging shoulder hole, described charging shoulder hole is had to include the first hole section and the second hole section, described first hole section and described second hole section
Being sequentially connected with along the direction near described die, the cross sectional dimensions of described first hole section is transversal more than described second hole section
Face size, described cross section extends along the axially direction being perpendicular to described charging aperture.
Casting mold the most according to claim 2, it is characterised in that along the direction near described die, described first
The cross sectional dimensions of hole section tapers into.
Casting mold the most according to claim 1, it is characterised in that the inwall of described charging aperture comprises conical inboard wall, edge
The direction near described die, the lateral dimension of described conical inboard wall is gradually increased, and described is laterally perpendicular to described charging aperture
Axial.
5. according to the casting mold according to any one of claim 1-4, it is characterised in that described stub bar forms part and includes this
Body fixes the installation portion and securing member being connected with described body, and described installation portion is offered installing hole, described securing member and institute
Stating installing hole to match, described installation portion is fixed on described die by described securing member.
Casting mold the most according to claim 5, it is characterised in that described installation portion is projection, described projection is along hanging down
Directly in the axially direction of described charging aperture, protrude relative to the surface of described body.
Casting mold the most according to claim 6, it is characterised in that described projection is positioned on described body away from described mould
One end of core.
Casting mold the most according to claim 5, it is characterised in that the axis of described installing hole and the axle of described charging aperture
Line is parallel.
Casting mold the most according to claim 5, it is characterised in that described installing hole is counterbore.
10. a stub bar forms part, it is characterised in that it is watering according to any one of claim 1-9 that described stub bar forms part
The stub bar of injection molding tool forms part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610589518.2A CN106064450A (en) | 2016-07-22 | 2016-07-22 | Casting mold and stub bar form part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610589518.2A CN106064450A (en) | 2016-07-22 | 2016-07-22 | Casting mold and stub bar form part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106064450A true CN106064450A (en) | 2016-11-02 |
Family
ID=57207100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610589518.2A Pending CN106064450A (en) | 2016-07-22 | 2016-07-22 | Casting mold and stub bar form part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106064450A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63296912A (en) * | 1987-05-29 | 1988-12-05 | Toshiba Corp | Injection molding device |
| CN201530100U (en) * | 2009-11-19 | 2010-07-21 | 中国华录·松下电子信息有限公司 | Sprue structure for injection mold |
| CN202943834U (en) * | 2012-12-11 | 2013-05-22 | 东莞宝根精密模塑有限公司 | Sprue bush for mould |
| CN104626472A (en) * | 2015-01-23 | 2015-05-20 | 苏州市职业大学 | Sprue bush |
| CN204673929U (en) * | 2015-04-20 | 2015-09-30 | 中山市利群精密实业有限公司 | A kind of novel cooling sprue bush |
| CN205767263U (en) * | 2016-07-22 | 2016-12-07 | 深圳天珑无线科技有限公司 | Casting mold and stub bar form part |
-
2016
- 2016-07-22 CN CN201610589518.2A patent/CN106064450A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63296912A (en) * | 1987-05-29 | 1988-12-05 | Toshiba Corp | Injection molding device |
| CN201530100U (en) * | 2009-11-19 | 2010-07-21 | 中国华录·松下电子信息有限公司 | Sprue structure for injection mold |
| CN202943834U (en) * | 2012-12-11 | 2013-05-22 | 东莞宝根精密模塑有限公司 | Sprue bush for mould |
| CN104626472A (en) * | 2015-01-23 | 2015-05-20 | 苏州市职业大学 | Sprue bush |
| CN204673929U (en) * | 2015-04-20 | 2015-09-30 | 中山市利群精密实业有限公司 | A kind of novel cooling sprue bush |
| CN205767263U (en) * | 2016-07-22 | 2016-12-07 | 深圳天珑无线科技有限公司 | Casting mold and stub bar form part |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161102 |
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| RJ01 | Rejection of invention patent application after publication |