CN107791450A - A kind of injection mold of anti-shrinkage cavity shrinkage porosity - Google Patents
A kind of injection mold of anti-shrinkage cavity shrinkage porosity Download PDFInfo
- Publication number
- CN107791450A CN107791450A CN201610743487.1A CN201610743487A CN107791450A CN 107791450 A CN107791450 A CN 107791450A CN 201610743487 A CN201610743487 A CN 201610743487A CN 107791450 A CN107791450 A CN 107791450A
- Authority
- CN
- China
- Prior art keywords
- dynamic model
- cover half
- injection mold
- fixed form
- right ends
- 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
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
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- 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
- B29C45/1742—Mounting of moulds; Mould supports
-
- 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
-
- 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
- B29C45/2606—Guiding or centering means
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of injection mold of anti-shrinkage cavity shrinkage porosity, including fixed half and moving half, the upper surface of cover half is installed with sprue gate and groove, compression spring is also installed with the inside of groove, the lower section of cover half is also installed with fixed form, cover half is fixedly mounted on the upper surface of fixed form by the support bar installed in its bottom, and backing plate is also installed with the upper surface of fixed form；Dynamic model is fixedly mounted on the top of cover half, expansion link is installed with the left and right ends of dynamic model, dynamic model is fixedly connected by the expansion link installed in its left and right ends with moving die plate, guide pillar is installed with above dynamic model, guide pillar is fixedly connected by the bolt installed in guide column sleeve bottom with dynamic model, centring ring is installed with the top of guide pillar, the injection mold balances pressure by the compression spring installed in inside grooves, prevent hypertonia or too low, effectively prevent inner mould from shrinking, it is practical.
Description
Technical field
The present invention relates to injection moulding apparatus technical field, specially a kind of injection mold of anti-shrinkage cavity shrinkage porosity.
Background technology
Injection mold is a kind of instrument for producing plasthetics, is also to confer to plasthetics complete structure and accurate dimension
Instrument, using maximum processing equipment in plastic cement processing industry during injection machine, not only substantial amounts of product can directly be produced with injection machine,
But also be the key equipment for forming injection stretch blow moulding, injection mold plays highly important effect to injection machine, is injection machine
One of essential part, injection molding are to produce a kind of processing method used during some complex-shaped parts in batches, tool
Body is that the material of heated thawing is taken in into mold cavity by high pressure, and shaped article is obtained after cooling and solidifying, due to solid in cooling
Inhomogeneity during change, or due to by thermal unbalance, result in the excessively contraction of internal injection module, or receive
Shrink mark mark, it is not up to standard that these situations all to be molded by the product come.
The content of the invention
For problem above, the invention provides a kind of injection mold of anti-shrinkage cavity shrinkage porosity, and cooling is uniform, prevents loose contracting,
Effectively can solve the problems, such as in background technology.
To achieve the above object, the present invention provides following technical scheme：A kind of injection mold of anti-shrinkage cavity shrinkage porosity, including it is fixed
Mould and dynamic model, the upper surface of the cover half is installed with sprue gate and groove, and sprue gate is arranged on the left and right ends of groove,
Compression spring is also installed with the inside of groove, the lower section of the cover half is also installed with fixed form, in cover half and
Support bar is installed between fixed form, cover half is fixedly mounted on fixed form by the support bar installed in its bottom
Upper surface, backing plate is also installed with the upper surface of fixed form；The dynamic model is fixedly mounted on the top of cover half, in dynamic model
Left and right ends be installed with expansion link, be additionally provided with moving die plate above dynamic model, dynamic model passes through installed in its left and right
The expansion link at both ends is fixedly connected with moving die plate, and guide pillar, the outer surface of the guide pillar are installed with above the dynamic model
Guide column sleeve is installed with, guide pillar is fixedly connected by the bolt installed in guide column sleeve bottom with dynamic model, is consolidated on the top of guide pillar
Dingan County is equipped with centring ring.
As a kind of preferable technical scheme of the present invention, the left and right ends of the backing plate are installed with rivet.
As a kind of preferable technical scheme of the present invention, cushion block is also installed between the dynamic model and moving die plate.
As a kind of preferable technical scheme of the present invention, the quantity of the support bar is two, and two support bars are solid respectively
Dingan County is mounted in the left and right ends of fixed form.
Compared with prior art, the beneficial effects of the invention are as follows：The injection mold of the anti-shrinkage cavity shrinkage porosity, fixed by setting
Template so that backing plate is fixedly mounted on the upper surface of fixed form under the fixation of the rivet of its left and right ends so that cover half energy
Enough stable installations, set groove and sprue gate, can be by sprue gate casting material, while coordinate the dynamic model above cover half, shape
Into running gate system, in the compression spring that is internally provided with of cover half, the wherein elastic force of compression spring is certain value, can control groove
Internal pressure, effectively prevents the product of inside grooves from excessively shrinking, and prevents the shrinkage porosite of object, sets expansion link so that cover half
Moved up and down under the drive of expansion link below moving die plate, unlatching and the closure of groove realized by the movement of dynamic model,
So that injecting products are more convenient, the injection mold of the anti-shrinkage cavity shrinkage porosity, can active balance pressure, prevent object due to heated
Shrinkage cavity shrinkage porosity phenomenon, practicality are stronger caused by uneven.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
In figure：1- cover half；2- dynamic models；3- sprue gates；4- grooves；5- compression springs；6- fixed forms；7- support bars；8-
Backing plate；9- expansion links；10- moving die plates；11- guide pillars；12- guide column sleeves；13- bolts；14- centring rings；15- rivets；16- is padded
Block.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Embodiment：
Referring to Fig. 1, the present invention provides a kind of technical scheme：A kind of injection mold of anti-shrinkage cavity shrinkage porosity, including cover half 1 and dynamic model
2, the upper surface of cover half 1 is installed with sprue gate 3 and groove 4, and sprue gate 3 is arranged on the left and right ends of groove 4, in groove
4 inside is also installed with compression spring 5, and the lower section of cover half 1 is also installed with fixed form 6, in cover half 1 and stent
Support bar 7 is installed between plate 6, cover half 1 is fixedly mounted on fixed form 6 by the support bar 7 installed in its bottom
Upper surface, backing plate 8 is also installed with the upper surface of fixed form 6, and the left and right ends of backing plate 8 are installed with rivet 15；
Dynamic model 2 is fixedly mounted on the top of cover half 1, is installed with expansion link 9 in the left and right ends of dynamic model 2, in the top of dynamic model 2 also
Moving die plate 10 is provided with, dynamic model 2 is fixedly connected by the expansion link 9 installed in its left and right ends with moving die plate 10, dynamic model 2
Cushion block 16 is also installed between moving die plate 10, the top of dynamic model 2 is installed with guide pillar 11, the outer surface of guide pillar 11
Guide column sleeve 12 is installed with, guide pillar 11 is fixedly connected by the bolt 13 installed in the bottom of guide column sleeve 12 with dynamic model 2, in guide pillar
11 top is installed with centring ring 14.
The operation principle of the present invention：
The injection mold of the anti-shrinkage cavity shrinkage porosity, by setting fixed form 6 so that rivet 15 of the backing plate 8 in its left and right ends
The upper surface of fixed form 6 is fixedly mounted under fixation so that cover half 1, which can be stablized, to be installed, and sets groove 4 and sprue gate 3, energy
Enough by the casting material of sprue gate 3, while coordinate the dynamic model 2 of the top of cover half 1, form running gate system, set in the inside of cover half 1
There is compression spring 5, the wherein elastic force of compression spring 5 is certain value, can control the pressure inside groove 4, effectively prevent groove 4
Internal product excessively shrinks, and prevents the shrinkage porosite of object, sets expansion link 9 so that cover half 1 is moving under the drive of expansion link 9
The lower section of moving platen 10 moves up and down, and unlatching and the closure of groove 4 is realized by the movement of dynamic model 2 so that injecting products are more
It is convenient, the injection mold of the anti-shrinkage cavity shrinkage porosity, can active balance pressure, prevent object due to uneven heating it is even caused by shrinkage cavity
Shrinkage porosite phenomenon, practicality are stronger.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (4)
1. a kind of injection mold of anti-shrinkage cavity shrinkage porosity, including cover half（1）And dynamic model（2）, the cover half（1）Upper surface fix peace
Equipped with sprue gate（3）And groove（4）, and sprue gate（3）It is arranged on groove（4）Left and right ends, in groove（4）Inside it is also solid
Dingan County is equipped with compression spring（5）, it is characterised in that：The cover half（1）Lower section be also installed with fixed form（6）, fixed
Mould（1）And fixed form（6）Between be installed with support bar（7）, cover half（1）Pass through the support bar installed in its bottom（7）
It is fixedly mounted on fixed form（6）Upper surface, in fixed form（6）Upper surface be also installed with backing plate（8）；It is described dynamic
Mould（2）It is fixedly mounted on cover half（1）Top, in dynamic model（2）Left and right ends be installed with expansion link（9）, in dynamic model（2）
Top be additionally provided with moving die plate（10）, dynamic model（2）Pass through the expansion link installed in its left and right ends（9）With moving die plate
（10）It is fixedly connected, the dynamic model（2）Top be installed with guide pillar（11）, the guide pillar（11）Outer surface be fixedly mounted
There is guide column sleeve（12）, guide pillar（11）By installed in guide column sleeve（12）The bolt of bottom（13）With dynamic model（2）It is fixedly connected, is leading
Post（11）Top be installed with centring ring（14）.
A kind of 2. injection mold of anti-shrinkage cavity shrinkage porosity according to claim 1, it is characterised in that：The backing plate（8）A left side
Right both ends are installed with rivet（15）.
A kind of 3. injection mold of anti-shrinkage cavity shrinkage porosity according to claim 1, it is characterised in that：The dynamic model（2）And shifting
Moving platen（10）Between be also installed with cushion block（16）.
A kind of 4. injection mold of anti-shrinkage cavity shrinkage porosity according to claim 1, it is characterised in that：The support bar（7）'s
Quantity is two, two support bars（7）It is respectively and fixedly installed to fixed form（6）Left and right ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610743487.1A CN107791450A (en) | 2016-08-29 | 2016-08-29 | A kind of injection mold of anti-shrinkage cavity shrinkage porosity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610743487.1A CN107791450A (en) | 2016-08-29 | 2016-08-29 | A kind of injection mold of anti-shrinkage cavity shrinkage porosity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107791450A true CN107791450A (en) | 2018-03-13 |
Family
ID=61527829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610743487.1A Pending CN107791450A (en) | 2016-08-29 | 2016-08-29 | A kind of injection mold of anti-shrinkage cavity shrinkage porosity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107791450A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114571676A (en) * | 2022-03-22 | 2022-06-03 | 东风柳州汽车有限公司 | Mould and structure for preventing surface reduction printing thereof |
-
2016
- 2016-08-29 CN CN201610743487.1A patent/CN107791450A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114571676A (en) * | 2022-03-22 | 2022-06-03 | 东风柳州汽车有限公司 | Mould and structure for preventing surface reduction printing thereof |
| CN114571676B (en) * | 2022-03-22 | 2024-01-05 | 东风柳州汽车有限公司 | Mould and prevent structure of surface shrink seal thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180313 |